Processing equipment
阅读说明：本技术 加工设备 (Processing equipment ) 是由 汪家伟 张维波 崔晓明 康树峰 魏任升 于 2020-11-20 设计创作，主要内容包括：本发明公开一种加工设备,该加工设备包括放管结构、加热结构、扩张模具、牵引装置及收管结构,所述放管结构设有放管辊,所述加热结构包括回缩机构和设于所述回缩机构的加热炉,所述加热炉设有加热腔和连通所述加热腔的入口,所述回缩机构设有回缩腔和连通所述回缩腔的出口,所述加热腔与所述回缩腔连通,所述扩张模具设于所述出口处,用于热缩管扩张；所述牵引装置设有与所述扩张模具正对设置的牵引通道；所述收管结构与所述牵引装置相邻设置,所述收管结构设有收管辊。本发明旨在提供一种能够消除或减少热缩管轴向拉伸率不稳定的缺陷的加工设备,该加工设备可对热缩管的拉伸率进行有效控制,提高了热缩管的成品质量。(The invention discloses a processing device which comprises a pipe releasing structure, a heating structure, an expansion die, a traction device and a pipe collecting structure, wherein the pipe releasing structure is provided with a pipe releasing roller, the heating structure comprises a retraction mechanism and a heating furnace arranged on the retraction mechanism, the heating furnace is provided with a heating cavity and an inlet communicated with the heating cavity, the retraction mechanism is provided with a retraction cavity and an outlet communicated with the retraction cavity, the heating cavity is communicated with the retraction cavity, and the expansion die is arranged at the outlet and used for expanding a heat-shrinkable pipe; the traction device is provided with a traction channel which is arranged opposite to the expansion mould; the pipe collecting structure is adjacent to the traction device and is provided with a pipe collecting roller. The invention aims to provide processing equipment capable of eliminating or reducing the defect of unstable axial stretching rate of the heat shrinkable tube, and the processing equipment can effectively control the stretching rate of the heat shrinkable tube and improve the quality of a finished product of the heat shrinkable tube.)
1. A processing equipment is used for expanding and processing a heat shrinkable tube, and is characterized by comprising:
the pipe releasing structure is provided with a pipe releasing roller, and the pipe releasing roller is used for releasing the heat shrinkable pipe;
the heating structure is arranged adjacent to the pipe placing structure and comprises a retraction mechanism and a heating furnace arranged on the retraction mechanism, the heating furnace is provided with a heating cavity and an inlet communicated with the heating cavity, the retraction mechanism is provided with a retraction cavity and an outlet communicated with the retraction cavity, the heating cavity is communicated with the retraction cavity, and the heating cavity and the retraction cavity are used for heating the heat-shrinkable pipe;
the expansion die is arranged at the outlet and used for expanding the heat shrinkage pipe;
the traction device is arranged close to the expansion die and provided with a traction channel which is opposite to the expansion die; and
receive the tubular construction, receive the tubular construction with draw gear adjacent setting, receive the tubular construction and be equipped with and receive a pipe roller, receive a pipe roller and be used for accomodating the pyrocondensation pipe through draw the passageway.
2. The processing apparatus as set forth in claim 1, wherein the retraction mechanism comprises:
the heating furnace is arranged at the inlet, and the heating cavity is communicated with the retraction cavity through the inlet;
the heating assembly is arranged on the inner wall of the retraction cavity and corresponds to the inlet and the outlet; and
conveying assembly, conveying assembly includes first driving piece, driving shaft, driven shaft and conveyer belt, the driving shaft is located retract the intracavity, first driving piece is located retract the case, and run through retract the case with the driving shaft transmission is connected, the driven shaft is located retract the intracavity, and with the parallel and interval setting of driving shaft, the conveyer belt cover is located the driving shaft with the driven shaft.
3. The processing apparatus as claimed in claim 2, wherein the retraction mechanism further comprises a temperature sensor disposed in the retraction chamber, one end of the temperature sensor extending through the retraction chamber and into the retraction chamber for sensing a temperature within the retraction chamber;
and/or the retraction mechanism further comprises a bending degree detector, the bending degree detector comprises an emitter and a receiver which are arranged on two opposite sides of the retraction box, and the receiver is arranged corresponding to the emitter and used for detecting the bending degree of the heat shrinkage pipe in the retraction cavity.
And/or the retraction mechanism further comprises two guide assemblies arranged in the retraction cavity, one guide assembly is arranged close to the inlet, the other guide assembly is arranged close to the outlet, the driving shaft and the driven shaft are positioned between the two guide assemblies, each guide assembly comprises a connecting plate and a guide wheel, one end of the connecting plate is connected with the inner wall of the retraction cavity, the guide wheels are rotatably connected to the other end of the connecting plate, and each guide wheel is provided with a guide groove used for accommodating the heat-shrinkable tube;
and/or, the heating furnace includes furnace body and delivery wheel, the furnace body is located import department, the furnace body is equipped with the heating chamber with the entry, the entry is located the furnace body is kept away from the one end of import, the delivery wheel is located the entry, the delivery wheel is including two relative delivery roller that set up, two be formed with transfer passage between the delivery roller, transfer passage with the entry is just right and the intercommunication, be used for with put the pyrocondensation pipe of tub roller and carry extremely in the entry.
4. The processing apparatus as set forth in claim 1, wherein the drawing device comprises:
a substrate;
the second driving piece is arranged on the base body;
the traction structure is arranged on the base body and is in transmission connection with the second driving piece, and the traction structure is provided with the traction channel; and
the auxiliary traction assembly is arranged on the base body and is in transmission connection with the second driving piece, an auxiliary traction channel for traction of the heat shrinkage pipe is arranged on the auxiliary traction assembly, and the auxiliary traction channel and the traction channel are arranged at intervals and in parallel.
5. The processing apparatus as set forth in claim 4, wherein the pulling structure comprises:
the mounting seat is arranged on the base body;
the two crawler assemblies penetrate through the mounting seat at intervals in parallel, one ends of the two crawler assemblies are provided with crawlers, the other ends of the two crawler assemblies are provided with first gears, the two first gears are meshed and connected, one end of one crawler assembly, away from the crawler, is provided with a first belt wheel, the first belt wheel and the first gear are arranged at intervals and are in transmission connection with the second driving piece through a transmission belt, and the two crawlers are arranged oppositely and matched to form the traction channel; and
the crawler belt comprises a first protection cover, the first protection cover is provided with a first containing cavity and a first notch communicated with the first containing cavity, the crawler belt is contained in the first containing cavity, part of the crawler belt is exposed out of the first notch, and the traction channel is correspondingly communicated with the first notch.
6. The processing equipment as claimed in claim 5, wherein the mounting seat comprises a first mounting seat fixedly arranged on the base body and a second mounting seat movably arranged on the base, the first mounting seat and the second mounting seat are provided with mounting holes coaxially arranged, one of the track assemblies is arranged through the first mounting seat, and the other track assembly is arranged through the second mounting seat;
the towing construction further comprises an adjustment assembly comprising:
the adjusting piece comprises an adjusting rod and a hand wheel arranged at one end of the adjusting rod, and the adjusting rod is rotatably arranged in the two mounting holes in a penetrating manner; and
the reset spring is sleeved on the adjusting rod, and two ends of the reset spring are respectively elastically abutted against the first mounting seat and the second mounting seat;
the hand wheel drives the adjusting rod to rotate, so that the second mounting seat is close to or far away from the first mounting seat.
7. The processing apparatus as set forth in claim 4, wherein the auxiliary pulling assembly comprises:
the fixed seat is arranged on the base body;
the two auxiliary shafts are arranged at intervals and parallelly penetrate through the fixed seat, one ends of the two auxiliary shafts are provided with auxiliary traction wheels, the other ends of the two auxiliary shafts are provided with second gears, the two second gears are meshed and connected, one end of one auxiliary shaft, which is far away from the auxiliary traction wheels, is provided with a second belt wheel, the second belt wheel and the second gear are arranged at intervals and are in transmission connection with a second driving piece through a transmission belt, and the two auxiliary traction wheels are oppositely arranged and are matched to form an auxiliary traction channel; and
the auxiliary traction wheels are contained in the second containing cavity, the auxiliary traction wheels are partially exposed out of the second notch, and the auxiliary traction channel is correspondingly communicated with the second notch.
8. The processing equipment as claimed in claim 4, wherein the traction device further comprises a limiting assembly, the limiting assembly comprises a fixed plate and two limiting rods, the fixed plate is arranged on the base body and is positioned between the traction structure and the auxiliary traction assembly, the two limiting rods are arranged at one end of the fixed plate far away from the base body, the two limiting rods are arranged in parallel and at intervals and are matched to form a limiting groove, and the limiting groove is positioned on the same straight line with one ends of the traction channel and the auxiliary traction channel;
and/or, draw gear is still including being located the second driving piece with draw the structure and/or supplementary tensioning assembly between the subassembly that draws, tensioning assembly includes limiting plate, roller shaft and screw rod, the limiting plate is located the base member, the limiting plate is equipped with the bar hole, the one end of roller shaft is equipped with the gyro wheel, the other end of roller shaft is worn to locate the bar is downthehole to be equipped with the screw, the one end of screw rod is run through the base member with the limiting plate stretches into in the bar hole, and wear to locate in the screw hole.
9. The processing apparatus as claimed in any one of claims 1 to 8, wherein the tube-releasing structure comprises a first base, a first driving assembly and a first tension assembly, the first base is provided with an accommodating cavity, the first driving assembly comprises a first driving motor arranged on the first base and two first driving rollers in transmission connection with the first driving motor, the two first driving rollers are arranged in the accommodating cavity at intervals, and is matched to form a first transmission groove, the pipe placing roller is arranged in the first transmission groove, the first tension assembly comprises a first bracket and a first guide wheel which are arranged on the first base, the first bracket is provided with a first detection groove, the first guide wheel is arranged on the first bracket, the heat shrink tube of the tube placing roller penetrates through the first detection groove and is abutted against the first guide wheel;
and/or the pipe collecting structure comprises a second base, a second driving component, a second tension component and a wire arranging component, wherein the second base is provided with an accommodating cavity, the second driving component comprises a second driving motor arranged on the second base and two second driving rollers in transmission connection with the second driving motor, the two second driving rollers are rotatably arranged in the accommodating cavity and are matched to form a second driving groove, the pipe collecting roller is arranged in the second driving groove, the second tension component comprises a second bracket and a second guide wheel which are arranged on the second base, the second bracket is provided with a second detection groove, the second guide wheel is arranged on the second bracket and is arranged corresponding to the second detection groove, the wire arranging component is arranged on the second base, and the wire arranging component is provided with a wire arranging wheel which is positioned between the pipe collecting roller and the second detection groove, and the heat-shrinkable tube sequentially passes through the second guide wheel, the second detection groove and the wire arranging wheel and is wound on the tube winding roller.
10. The processing apparatus of any of claims 1 to 8, further comprising a caliper disposed between the expansion die and the pull channel, the caliper for detecting a diameter of the heat shrink tube passing through the expansion die;
and/or, the processing equipment further comprises a velocimeter, the velocimeter is arranged between the outlet and the expansion mould, and the velocimeter is used for detecting the conveying speed of the heat-shrinkable tube at the outlet.
Technical Field
The invention relates to the technical field of heat-shrinkable tube processing equipment, in particular to processing equipment.
Background
The axial stretching rate of the heat-shrinkable tube is one of important indexes for measuring the quality of the heat-shrinkable tube, the automation degree of each industry is continuously improved, the process of using the heat-shrinkable tube in the downstream factory of the industrial chain gradually adopts automation equipment to replace a transmission process, the requirements of the development and application of the automation equipment on the quality and the consistency of the heat-shrinkable tube are gradually improved, the heat-shrinkable tube with unstable axial stretching rate can seriously influence the operation stability of subsequent automation equipment, and the heat-shrinkable tube is definitely eliminated by the market.
In the related art, a production line of a dry type expander for heat shrinkable tubes generally comprises a tube placing device, a tube collecting device and an expander main machine. The heat-shrinkable tube needs to be subjected to main processes of master batch, extrusion, irradiation, expansion, packaging and the like in the processing process, and the stretching rate of the heat-shrinkable tube is dynamically changed in the expansion process, so that the stretching rate cannot be effectively controlled. Meanwhile, after the heat-shrinkable tube is subjected to repeated disc-reversing turnover through a series of processes before expansion, the original tube continuously accumulates the defect of uneven axial stretching rate, and the defect that the axial stretching rate is unstable cannot be eliminated by a conventional heating method during expansion, so that the axial stretching rate of the expanded heat-shrinkable tube finished product is unstable, and the product quality problem is caused.
Disclosure of Invention
The invention mainly aims to provide processing equipment, and aims to provide the processing equipment which can eliminate or reduce the defect of unstable axial stretching rate of a heat shrinkable tube.
In order to achieve the above object, the present invention provides a processing apparatus for expanding a heat shrinkable tube, the processing apparatus comprising:
the pipe releasing structure is provided with a pipe releasing roller, and the pipe releasing roller is used for releasing the heat shrinkable pipe;
the heating structure is arranged adjacent to the pipe placing structure and comprises a retraction mechanism and a heating furnace arranged on the retraction mechanism, the heating furnace is provided with a heating cavity and an inlet communicated with the heating cavity, the retraction mechanism is provided with a retraction cavity and an outlet communicated with the retraction cavity, the heating cavity is communicated with the retraction cavity, and the heating cavity and the retraction cavity are used for heating the heat-shrinkable pipe;
the expansion die is arranged at the outlet and used for expanding the heat shrinkage pipe;
the traction device is arranged close to the expansion die and provided with a traction channel which is opposite to the expansion die; and
receive the tubular construction, receive the tubular construction with draw gear adjacent setting, receive the tubular construction and be equipped with and receive a pipe roller, receive a pipe roller and be used for accomodating the pyrocondensation pipe through draw the passageway.
In one embodiment, the retraction mechanism comprises:
the heating furnace is arranged at the inlet, and the heating cavity is communicated with the retraction cavity through the inlet;
the heating assembly is arranged on the inner wall of the retraction cavity and corresponds to the inlet and the outlet; and
conveying assembly, conveying assembly includes first driving piece, driving shaft, driven shaft and conveyer belt, the driving shaft is located retract the intracavity, first driving piece is located retract the case, and run through retract the case with the driving shaft transmission is connected, the driven shaft is located retract the intracavity, and with the parallel and interval setting of driving shaft, the conveyer belt cover is located the driving shaft with the driven shaft.
In one embodiment, the retraction mechanism further comprises a temperature sensor arranged in the retraction box, and one end of the temperature sensor penetrates through the retraction box and extends into the retraction cavity to detect the temperature in the retraction cavity;
and/or the retraction mechanism further comprises a bending degree detector, the bending degree detector comprises an emitter and a receiver which are arranged on two opposite sides of the retraction box, and the receiver is arranged corresponding to the emitter and used for detecting the bending degree of the heat shrinkage pipe in the retraction cavity.
And/or the retraction mechanism further comprises two guide assemblies arranged in the retraction cavity, one guide assembly is arranged close to the inlet, the other guide assembly is arranged close to the outlet, the driving shaft and the driven shaft are positioned between the two guide assemblies, each guide assembly comprises a connecting plate and a guide wheel, one end of the connecting plate is connected with the inner wall of the retraction cavity, the guide wheels are rotatably connected to the other end of the connecting plate, and each guide wheel is provided with a guide groove used for accommodating the heat-shrinkable tube;
and/or, the heating furnace includes furnace body and delivery wheel, the furnace body is located import department, the furnace body is equipped with the heating chamber with the entry, the entry is located the furnace body is kept away from the one end of import, the delivery wheel is located the entry, the delivery wheel is including two relative delivery roller that set up, two be formed with transfer passage between the delivery roller, transfer passage with the entry is just right and the intercommunication, be used for with put the pyrocondensation pipe of tub roller and carry extremely in the entry.
In one embodiment, the traction device comprises:
a substrate;
the second driving piece is arranged on the base body;
the traction structure is arranged on the base body and is in transmission connection with the second driving piece, and the traction structure is provided with the traction channel; and
the auxiliary traction assembly is arranged on the base body and is in transmission connection with the second driving piece, an auxiliary traction channel for traction of the heat shrinkage pipe is arranged on the auxiliary traction assembly, and the auxiliary traction channel and the traction channel are arranged at intervals and in parallel.
In one embodiment, the pulling structure comprises:
the mounting seat is arranged on the base body;
the two crawler assemblies penetrate through the mounting seat at intervals in parallel, one ends of the two crawler assemblies are provided with crawlers, the other ends of the two crawler assemblies are provided with first gears, the two first gears are meshed and connected, one end of one crawler assembly, away from the crawler, is provided with a first belt wheel, the first belt wheel and the first gear are arranged at intervals and are in transmission connection with the second driving piece through a transmission belt, and the two crawlers are arranged oppositely and matched to form the traction channel; and
the crawler belt comprises a first protection cover, the first protection cover is provided with a first containing cavity and a first notch communicated with the first containing cavity, the crawler belt is contained in the first containing cavity, part of the crawler belt is exposed out of the first notch, and the traction channel is correspondingly communicated with the first notch.
In one embodiment, the mounting seat comprises a first mounting seat fixedly arranged on the base body and a second mounting seat movably arranged on the base, the first mounting seat and the second mounting seat are provided with mounting holes coaxially arranged, one crawler assembly penetrates through the first mounting seat, and the other crawler assembly penetrates through the second mounting seat;
the towing construction further comprises an adjustment assembly comprising:
the adjusting piece comprises an adjusting rod and a hand wheel arranged at one end of the adjusting rod, and the adjusting rod is rotatably arranged in the two mounting holes in a penetrating manner; and
the reset spring is sleeved on the adjusting rod, and two ends of the reset spring are respectively elastically abutted against the first mounting seat and the second mounting seat;
the hand wheel drives the adjusting rod to rotate, so that the second mounting seat is close to or far away from the first mounting seat.
In one embodiment, the auxiliary tow assembly comprises:
the fixed seat is arranged on the base body;
the two auxiliary shafts are arranged at intervals and parallelly penetrate through the fixed seat, one ends of the two auxiliary shafts are provided with auxiliary traction wheels, the other ends of the two auxiliary shafts are provided with second gears, the two second gears are meshed and connected, one end of one auxiliary shaft, which is far away from the auxiliary traction wheels, is provided with a second belt wheel, the second belt wheel and the second gear are arranged at intervals and are in transmission connection with a second driving piece through a transmission belt, and the two auxiliary traction wheels are oppositely arranged and are matched to form an auxiliary traction channel; and
the auxiliary traction wheels are contained in the second containing cavity, the auxiliary traction wheels are partially exposed out of the second notch, and the auxiliary traction channel is correspondingly communicated with the second notch.
In one embodiment, the traction device further comprises a limiting assembly, the limiting assembly comprises a fixed plate and two limiting rods, the fixed plate is arranged on the base and is positioned between the traction structure and the auxiliary traction assembly, the two limiting rods are arranged at one end, away from the base, of the fixed plate, the two limiting rods are arranged in parallel and at intervals and are matched to form a limiting groove, and the limiting groove and one end of the traction channel and one end of the auxiliary traction channel are positioned on the same straight line;
and/or, draw gear is still including being located the second driving piece with draw the structure and/or supplementary tensioning assembly between the subassembly that draws, tensioning assembly includes limiting plate, roller shaft and screw rod, the limiting plate is located the base member, the limiting plate is equipped with the bar hole, the one end of roller shaft is equipped with the gyro wheel, the other end of roller shaft is worn to locate the bar is downthehole to be equipped with the screw, the one end of screw rod is run through the base member with the limiting plate stretches into in the bar hole, and wear to locate in the screw hole.
In one embodiment, the pipe releasing structure comprises a first base, a first driving assembly and a first tension assembly, the first base is provided with a containing cavity, the first driving assembly comprises a first driving motor arranged on the first base and two first driving rollers in transmission connection with the first driving motor, the two first driving rollers are arranged in the containing cavity at intervals and are matched to form a first driving groove, the pipe releasing roller is arranged in the first driving groove, the first tension assembly comprises a first bracket and a first guide wheel arranged on the first base, the first bracket is provided with a first detection groove, the first guide wheel is arranged on the first bracket and is corresponding to the first detection groove, and a heat shrinkage pipe of the pipe releasing roller penetrates through the first detection groove and is abutted against the first guide wheel;
and/or the pipe collecting structure comprises a second base, a second driving component, a second tension component and a wire arranging component, wherein the second base is provided with an accommodating cavity, the second driving component comprises a second driving motor arranged on the second base and two second driving rollers in transmission connection with the second driving motor, the two second driving rollers are rotatably arranged in the accommodating cavity and are matched to form a second driving groove, the pipe collecting roller is arranged in the second driving groove, the second tension component comprises a second bracket and a second guide wheel which are arranged on the second base, the second bracket is provided with a second detection groove, the second guide wheel is arranged on the second bracket and is arranged corresponding to the second detection groove, the wire arranging component is arranged on the second base, and the wire arranging component is provided with a wire arranging wheel which is positioned between the pipe collecting roller and the second detection groove, and the heat-shrinkable tube sequentially passes through the second guide wheel, the second detection groove and the wire arranging wheel and is wound on the tube winding roller.
In one embodiment, the processing equipment further comprises a diameter gauge, the diameter gauge is arranged between the expansion die and the traction channel, and the diameter gauge is used for detecting the diameter of the heat shrinkable tube passing through the expansion die;
and/or, the processing equipment further comprises a velocimeter, the velocimeter is arranged between the outlet and the expansion mould, and the velocimeter is used for detecting the conveying speed of the heat-shrinkable tube at the outlet.
According to the processing equipment provided by the technical scheme, the heating structure is arranged between the pipe placing roller and the expansion mould of the pipe placing structure, and the heating cavity of the heating furnace in the heating structure is communicated with the retraction cavity of the retraction structure, so that the heat shrinkable pipe on the pipe placing roller is heated secondarily before entering the expansion mould, the defect that the axial stretching rate of the heat shrinkable pipe is unstable can be eliminated or reduced, and the quality of a finished product of the heat shrinkable pipe is improved; simultaneously, through setting up draw gear and receipts tubular structure for draw gear's the passageway of pulling is just to expanding the mould setting, thereby utilizes draw gear to stabilize the centre gripping and pull output to the pyrocondensation pipe after expanding, avoids the clamping-force too loose to skid or too tightly to hinder the interior expansion unstability that gas flow caused and then lead to the crash, makes the pyrocondensation pipe accomodate smoothly in the receipts pipe roller of receipts tubular structure, accomplishes the expansion processing of pyrocondensation pipe. The processing equipment provided by the invention can eliminate or reduce the defect of unstable axial stretching rate of the heat shrinkable tube, can effectively control the stretching rate of the heat shrinkable tube, and improves the quality of the finished product of the heat shrinkable tube.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a processing apparatus according to an embodiment of the present invention;
FIG. 2 is a partially exploded view of a tube releasing structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heating structure according to an embodiment of the present invention;
FIG. 4 is a schematic view, partially in section, of a retraction mechanism in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a towing attachment in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a towing arrangement in accordance with an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a pipe retracting structure according to an embodiment of the present invention.
The reference numbers illustrate:
reference numerals
Name (R)
Reference numerals
Name (R)
Reference numerals
Name (R)
100
Processing equipment
221
Furnace body
443
Auxiliary traction wheel
1
Pipe placing structure
2211
Heating cavity
444
Second gear
11
Pipe placing roller
2212
Inlet port
445
Second belt wheel
12
First base
222
Conveying wheel
446
Second protective cover
121
Containing cavity
2221
Conveying roller
4461
Second chamber
13
First drive assembly
2222
Conveying channel
4462
Second gap
131
First driving motor
3
Expansion die
45
Limiting assembly
132
First driving roller
4
Traction device
451
Fixing plate
133
First transmission groove
41
Base body
452
Limiting rod
14
First tension assembly
42
Second driving member
453
Limiting groove
141
First support
421
Transmission belt
46
Tensioning assembly
142
First detection groove
43
Traction structure
461
Limiting plate
143
First guide wheel
431
Mounting seat
462
Strip-shaped hole
2
Heating structure
4311
First mounting seat
463
Roller shaft
21
Retraction mechanism
4312
Second mounting seat
464
Roller wheel
211
Retraction box
4313
Mounting hole
465
Screw rod
2111
Retraction cavity
432
Track assembly
5
Pipe collecting structure
2112
An outlet
432a
Traction channel
51
Pipe collecting roller
2113
An inlet
4321
Caterpillar band
52
Second base
212
Heating assembly
4322
First pulley
521
Containing cavity
213
Conveying assembly
4323
First gear
53
Second drive assembly
2131
First driving member
433
First protective cover
531
Second driving motor
2132
Driving shaft
4331
A first chamber
532
Second driving roller
2133
Driven shaft
4332
First gap
533
Second driving groove
2134
Conveyor belt
434
Adjusting assembly
54
Second tension assembly
214
Temperature sensor
4341
Adjusting part
541
Second support
215
Curvature detector
4342
Adjusting rod
542
Second detection groove
2151
Emitter electrode
4343
Hand wheel
543
Second guide wheel
2152
Receiving electrode
4344
Reset spring
55
Flat cable assembly
216
Guide assembly
44
Auxiliary traction assembly
551
Wire arranging wheel
2161
Connecting plate
44a
Auxiliary traction channel
6
Diameter measuring instrument
2162
Guide wheel
441
Fixed seat
7
Speed measuring instrument
22
Heating furnace
442
Auxiliary shaft
8
Heat shrink tube
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The axial stretching rate of the heat-shrinkable tube is one of important indexes for measuring the quality of the heat-shrinkable tube, the automation degree of each industry is continuously improved, the process of using the heat-shrinkable tube in the downstream factory of the industrial chain gradually adopts automation equipment to replace a transmission process, the requirements of the development and application of the automation equipment on the quality and the consistency of the heat-shrinkable tube are gradually improved, the heat-shrinkable tube with unstable axial stretching rate can seriously influence the operation stability of subsequent automation equipment, and the heat-shrinkable tube is definitely eliminated by the market.
In the related art, a production line of a dry type expander for heat shrinkable tubes generally comprises a tube placing device, a tube collecting device and an expander main machine. The expansion main machine is structurally generally composed of a conveying device, a heating device, an expansion die and a traction device which are arranged from top to bottom. The pipe placing device is generally a pipe placing frame or a material frame, the heat shrinkable pipe to be expanded is passively screwed out from the pipe placing frame or passively drawn out from the material frame, and the power of the heat shrinkable pipe to be expanded is provided by a conveying device of the expanding main machine; the pipe collecting device is generally a square or barrel-shaped material frame, the material frame is directly placed below a traction device of the expansion main machine and freely receives a finished heat-shrinkable pipe, and in the expansion process of the process, the stretching rate of the heat-shrinkable pipe is dynamically changed and cannot be effectively controlled.
If the pipe releasing device adopts a pipe releasing frame, the gravity center of the pipe releasing frame can be eccentric and the balance is unstable due to the deformation of the pipe releasing frame or the number of the stored pipes, the rotating speed of the pipe releasing frame of the heat shrinkable pipe is not uniform, the tension of the heat shrinkable pipe is unstable, and the pipe releasing pipe can also slip, so that the heat shrinkable pipe can generate axial stretching with different degrees in the pipe releasing stage, the expansion is influenced, and the uncontrollable axial stretching change of a finished product after the expansion is caused; if the pipe is pulled out from the material frame, the pipe is easy to be placed and knotted, if the pipe cannot be manually processed in time, the machine is halted, and meanwhile, the pipe is placed from the frame, and the radial distortion of the pipe is easy to be caused.
The pipe collecting device generally adopts a material frame connecting pipe, and the heat-shrinkable pipe freely falls into the material frame and is coiled and stacked in the material frame. When the thermal shrinkage pipe is expanded, the thermal shrinkage pipe is changed from a small diameter to a large diameter in a deformation process, the volume of the thermal shrinkage pipe is increased after the diameter of the thermal shrinkage pipe is increased, compressed gas needs to be continuously filled into an inner cavity of the thermal shrinkage pipe in the process, and the compressed gas is filled from the end head side of an expanded finished product. The heat-shrinkable tubes are freely coiled and stacked in the frame, the shape and the position of the coiled loops are not controllable, so that the heat-shrinkable tubes can be folded occasionally, when more stacks are accumulated in the frame, the heat-shrinkable tubes at the bottom layer can be extruded and deformed, and when the folds occur, the compressed gas is blocked from being filled, so that the dead halt can be caused; when the heat shrinkable tube is compressed and deformed, the compressed gas can be influenced to be filled, so that the expansion is insufficient, the axial stretching of the heat shrinkable tube can be changed, and the heat shrinkable tube can be halted along with the deformation to a certain degree. The material frame is used for storing materials, so that the problems of tube placing, knotting, dead halt and the like in the next packaging process are easily caused, and the packaging automation is not facilitated.
The heat shrinkable tube is sent into the heating device from top to bottom by the conveying device to be heated, then enters the die to be expanded, and is subsequently pulled out of the die by the lowest traction device. However, in this process, various unstable factors such as vacuum pressure fluctuation of the mold, internal pressure fluctuation of the heat shrinkable tube, slight difference of wall thickness of the tube, uniformity difference of microstructure of the heat shrinkable tube material, axial stretching variation generated in the pre-process, and shaking caused by thermal convection of the heat shrinkable tube in the heating device exist all the time, and under the influence of these uncertain factors, the axial stretching rate of the heat shrinkable tube is in dynamic fluctuation all the time, and among these uncertain factors, the vacuum pressure fluctuation of the mold, the internal pressure fluctuation of the heat shrinkable tube, and the axial stretching variation generated in the pre-process most easily cause the axial stretching of the expanded finished product to exceed the standard. When the pyrocondensation pipe down expanded, the expansion mould entry was in the top, was obstructed inside getting into the mould at the mould mouth, and the pyrocondensation pipe advances to be in high-elastic state before the mould, here, when receiving foretell unstable factor to influence, and the pyrocondensation pipe very easily produces tensile or is crooked, and when the two exceeded the certain degree, it is unqualified that tensile will exceed standard, when crooked further accumulation, can cause the ponding, and then the crash.
Therefore, in the expansion process, the stretching ratio of the heat shrinkable tube is dynamically changed, and the stretching ratio cannot be effectively controlled. Meanwhile, after the heat-shrinkable tube is subjected to repeated disc-reversing turnover through a series of processes before expansion, the original tube continuously accumulates the defect of uneven axial stretching rate, and the defect that the axial stretching rate is unstable cannot be eliminated by a conventional heating method during expansion, so that the axial stretching rate of the expanded heat-shrinkable tube finished product is unstable, and the product quality problem is caused.
Based on the above-described concept and problems, the present invention proposes a processing apparatus 100. It is to be understood that the processing apparatus 100 is used for the expansion process of the heat shrinkable tube 8.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, in an embodiment of the present invention, the processing apparatus 100 includes a tube releasing structure 1, a heating structure 2, an expanding mold 3, a traction device 4 and a tube retracting structure 5, wherein the tube releasing structure 1 is provided with a tube releasing roller 11, and the tube releasing roller 11 is used for releasing a heat shrinkable tube 8; the heating structure 2 is arranged adjacent to the tube placing structure 1, the heating structure 2 comprises a retraction mechanism 21 and a heating furnace 22 arranged on the retraction mechanism 21, the heating furnace 22 is provided with a heating cavity 2211 and an inlet 2212 communicated with the heating cavity 2211, the retraction mechanism 21 is provided with a retraction cavity 2111 and an outlet 2112 communicated with the retraction cavity 2111, the heating cavity 2211 is communicated with the retraction cavity 2111, and the heating cavity 2211 and the retraction cavity 2111 are used for heating the heat-shrinkable tube 8; the expansion die 3 is arranged at the outlet 2112 and is used for expanding the heat shrinkable tube 8; the traction device 4 is arranged adjacent to the expansion die 3, and the traction device 4 is provided with a traction channel 432a which is arranged opposite to the expansion die 3; the pipe collecting structure 5 is arranged adjacent to the traction device 4, the pipe collecting structure 5 is provided with a pipe collecting roller 51, and the pipe collecting roller 51 is used for collecting the heat shrinkable pipe 8 passing through the traction channel 432 a.
In this embodiment, the tube unwinding roller 11 of the tube unwinding structure 1 is used for unwinding the heat shrinkable tube 8 to be processed, and the tube unwinding roller 11 may be a wire coil or the like, which is not limited herein. The heating structure 2 is used for heating, retracting and shaping the heat shrinkable tube 8 to be processed on the tube releasing roller 11, namely, the heat shrinkable tube 8 of the tube releasing roller 11 enters the heating cavity 2211 through the inlet 2212 of the heating furnace 22 for pre-heating, then enters the retracting cavity 2111 for secondary heating, retracting and shaping, enters the expanding die 3 through the outlet 2112 for expansion forming processing and shaping, and then is drawn by the drawing channel 432a of the drawing device 4 to draw the expanded heat shrinkable tube 8, and then is accommodated in the tube collecting roller 51 of the tube collecting structure 5. Alternatively, the tube collecting roller 51 may be a wire coil or the like, which is not limited herein.
According to the processing equipment 100, the heating structure 2 is arranged between the pipe releasing roller 11 of the pipe releasing structure 1 and the expansion mould 3, and the heating cavity 2211 of the heating furnace 22 in the heating structure 2 is communicated with the retraction cavity 2111 of the retraction structure 21, so that the heat shrinkable pipe 8 on the pipe releasing roller 11 is heated for the second time before entering the expansion mould 3, the defect that the axial stretching rate of the heat shrinkable pipe 8 is unstable can be eliminated or reduced, and the finished product quality of the heat shrinkable pipe 8 is improved; simultaneously, through setting up draw gear 4 and receiving tubular construction 5, make draw gear 4's traction passage 432a just to expanding mould 3 setting, thereby utilize draw gear 4 to stabilize the centre gripping and pull output to pyrocondensation pipe 8 after the expansion, avoid the clamping-force too loose to skid or too tight expansion that hinders intraductal gas flow and cause unstable and then lead to the crash, make pyrocondensation pipe 8 accomodate smoothly in receiving tubular construction 5's receiving roller 51, accomplish the expansion processing of pyrocondensation pipe 8. The processing equipment 100 of the invention not only can eliminate or reduce the defect of unstable axial stretching rate of the heat shrinkable tube 8, but also can effectively control the stretching rate of the heat shrinkable tube 8, thereby improving the quality of the finished product of the heat shrinkable tube 8.
In one embodiment, as shown in fig. 1, 3 and 4, the retraction mechanism 21 comprises a retraction box 211, a heating assembly 212 and a conveying assembly 213, wherein the retraction box 211 is provided with a retraction cavity 2111 and an inlet 2113 and an outlet 2112 which are communicated with the retraction cavity 2111, the heating furnace 22 is provided at the inlet 2113, and the heating cavity 2211 is communicated with the retraction cavity 2111 through the inlet 2113; the heating assembly 212 is disposed on an inner wall of the retraction cavity 2111 and is disposed corresponding to the inlet 2113 and the outlet 2112; the conveying assembly 213 comprises a first driving member 2131, a driving shaft 2132, a driven shaft 2133 and a conveying belt 2134, the driving shaft 2132 is arranged in the retraction cavity 2111, the first driving member 2131 is arranged in the retraction box 211 and penetrates through the retraction box 211 to be in transmission connection with the driving shaft 2132, the driven shaft 2133 is arranged in the retraction cavity 2111 and is parallel to and spaced from the driving shaft 2132, and the driving shaft 2132 and the driven shaft 2133 are sleeved with the conveying belt 2134.
In the embodiment, the retraction box 211 of the retraction mechanism 21 is used for mounting, fixing and supporting the heating furnace 22, the expansion die 3, the conveying assembly 213 and other components, and the structure of the retraction box 211 may be a box body, a housing or a box body structure with a cavity, which is not limited herein.
It is understood that the retraction box 211 has a retraction cavity 2111, and the retraction cavity 2111 is used for secondary heating and retraction shaping of the heat shrinkable tube 8 heated by the heating furnace 22. In order to facilitate the heat shrinkable tube 8 of the heating furnace 22 to enter the retraction cavity 2111, the retraction box 211 is provided with an inlet 2113 communicated with the retraction cavity 2111, and the heating furnace 22 is arranged in the retraction box 211 and is arranged corresponding to the inlet 2113. In order to facilitate the expansion and shaping of the heat shrinkable tube 8 which is subjected to the secondary heating and the contraction shaping in the contraction cavity 2111 through the expansion die 3, the contraction box 211 is provided with an outlet 2112 communicated with the contraction cavity 2111, and the expansion die 3 is arranged corresponding to the outlet 2112.
In this embodiment, furnace 22 is provided with a heating cavity 2211, and heating cavity 2211 is in communication with retraction cavity 2111 through an inlet 2113. It will be appreciated that the heating cavity 2211 of the heating furnace 22 is used for preheating or pre-heating the heat shrinkable tube 8.
According to the heating structure 2, the heating cavity 2211 of the heating furnace 22 is communicated with the retraction cavity 2111 of the retraction box 211 in the retraction mechanism 21, so that the heating furnace 22 and the retraction box 211 are arranged in series, the heat-shrinkable tube 8 before entering the expansion die 3 is heated for the second time, the defect that the axial stretching rate of the heat-shrinkable tube 8 is unstable can be eliminated or reduced, and the quality of a finished product of the heat-shrinkable tube 8 is improved; meanwhile, part of the conveying assembly 213 is arranged in the retraction cavity 2111 of the retraction box 211, so that the conveying assembly 213 is used for conveying the heat shrinkable tube 8 which enters the retraction cavity 2111 from the inlet 2113 after being heated by the heating furnace 22 to the outlet 2112, and the heat shrinkable tube 8 is expanded through the expansion die 3, thereby finishing the processing and shaping of the heat shrinkable tube 8; further, the retraction mechanism 21 can make the heat shrinkable tube 8 fully retract and reshape in the retraction cavity 2111 before expansion, and further eliminate or reduce the defect of unstable axial stretching rate of the heat shrinkable tube 8, thereby improving the stability of expansion production and improving the quality of the finished heat shrinkable tube 8.
In this embodiment, as shown in fig. 1, 3 and 4, the retraction box 211 includes a fixed plate, a surrounding plate and a bottom cover, the fixed plate and the bottom cover are disposed at two opposite sides of the surrounding plate and surround to form the retraction cavity 2111, the fixed plate is provided with an inlet 2113 and an outlet 2112 which are spaced apart from each other, the bottom cover is rotatably connected to the surrounding plate to open or close the retraction cavity 2111, and the heating assembly 212 is disposed at the bottom cover for heating the retraction cavity 2111.
It is understood that the heating assembly 212 includes a heating tube disposed on a side of the bottom cover of the retraction box 211 facing the fixed plate and a tube cover covering the heating tube and coupled to the bottom cover. The pipe cover can be selected to cover body, box body or lid isotructure, and the pipe cover can adopt modes such as welding or integrated into one piece fixed the setting on the bottom cover, so can improve installation temperature nature. Certainly, the pipe cover can also adopt modes such as buckle connection, grafting cooperation, screw connection or pin joint, can dismantle the dress in the bottom, so can make things convenient for operations such as the dismouting, the change or the maintenance of heating pipe, improves the convenience.
In this embodiment, the side of the fixed plate of the retraction box 211 facing the coaming is provided with thermal insulation wool. It can be understood that, through setting up thermal-insulated cotton to effectively reduce the heat of fixed plate, thereby conveniently reduce the temperature that gets into the 8 pyrocondensation pipes of expansion mould 3, thereby make things convenient for the expansion of pyrocondensation pipe 8 to stereotype.
It can be understood that a fixed lug is arranged on one side of the bottom cover of the retraction box 211, which is opposite to the fixed plate, the retraction mechanism 21 further comprises a fixed seat and a driving cylinder, one end of the driving cylinder is rotatably connected with the fixed seat, the other end of the driving cylinder is provided with a connector, and the connector is rotatably connected with the fixed lug; the driving cylinder drives the bottom cover to open or close the retraction cavity 2111. Through setting up the fixing base and driving actuating cylinder to the utilization is driven actuating cylinder and is realized that the bottom is automatic to be opened or closed and retract chamber 2111, so can avoid the bottom to scald the user, improves the security.
In this embodiment, as shown in fig. 3, an installation plate is disposed on an outer wall of the retraction box 211, and the conveying assembly 213 includes a first driving member 2131, a driving shaft 2132, a driven shaft 2133 and a conveying belt 2134, wherein the first driving member 2131 is disposed on the installation plate; the driving shaft 2132 penetrates through the retraction box 211 and extends into the retraction cavity 2111, and the driving shaft 2132 is in transmission connection with the first driving piece 2131 through a belt; the driven shaft 2133 is arranged in the retraction cavity 2111 and is arranged at an interval with the driving shaft 2132; the transmission belt 2134 is sleeved on the driving shaft 2132 and the driven shaft 2133, and the transmission belt 2134 is used for transmitting the heat shrinkable tube 8 in the retraction cavity 2111 from the inlet 2113 to the outlet 2112.
The first driving member 2131 may be a driving motor, a servo motor, or the like, and is not limited herein. The driving shaft 2132 penetrates through the enclosing plate of the retraction box 211, one end of the driving shaft extends into the retraction cavity 2111, and the other end of the driving shaft is positioned outside the retraction box 211 and is in transmission connection with the first driving piece 2131. It will be appreciated that the first drive member 2131 is in belt drive communication with the drive shaft 2132. The driving shaft 2132 penetrates through the enclosing plate through a bearing structure, so that the first driving piece 2131 drives the driving shaft 2132 to rotate.
It is understood that the follower shaft 2133 may be disposed through the shroud of the retraction housing 211 with one end extending into the retraction cavity 2111, or the follower shaft 2133 may be disposed entirely within the retraction cavity 2111, without limitation. In this embodiment, the driven shaft 2133 is connected to the surrounding plate of the retraction box 211 through a bearing structure, and the transmission belt 2134 is sleeved on the driving shaft 2132 and the driven shaft 2133, so that when the driving shaft 2132 is driven by the first driving member 2131 to rotate, the transmission belt 2134 and the driven shaft 2133 are driven to rotate, and further the transmission of the heat shrink tube 8 is realized by the transmission belt 2134.
In one embodiment, as shown in FIG. 4, the retraction mechanism 21 further includes a temperature sensor 214 disposed in the retraction housing 211, wherein one end of the temperature sensor 214 extends through the retraction housing 211 and into the retraction cavity 2111 for sensing the temperature within the retraction cavity 2111.
As can be appreciated, the temperature within the retraction cavity 2111 is controlled by providing the temperature sensor 214 such that the temperature within the retraction cavity 2111 is monitored in real time by the temperature sensor 214, thereby controlling the operation of the heating tube within the heating assembly 212. In this embodiment, the heating structure 2 further comprises a controller, and the temperature sensor 214 and the heating tube are electrically connected to the controller, so that the temperature in the retraction cavity 2111 can be monitored by the temperature sensor 214 through feedback to the controller, and the operation of the heating tube can be controlled by the controller.
In one embodiment, as shown in fig. 1 and 3, the retraction mechanism 21 further comprises a curvature detector 215, wherein the curvature detector 215 comprises an emitter 2151 and a receiver 2152 disposed on opposite sides of the retraction box 211, and the receiver 2152 is disposed corresponding to the emitter 2151 for detecting the degree of curvature of the heat shrinkable tube 8 within the retraction cavity 2111.
In this embodiment, the enclosing plate of the retraction box 211 may be a quadrangular prism, and the enclosing plate includes a first side wall and a second side wall which are oppositely disposed, and the first side wall and the second side wall are made of transparent glass. By providing the first and second side walls as transparent glass, the retraction shaping condition of the heat shrinkable tube 8 in the retraction cavity 2111 can be observed or observed conveniently through the first and second side walls. Optionally, the first and second sidewalls extend in the same direction as the line connecting the inlet 2113 and the outlet 2112.
It is understood that the retraction mechanism 21 includes two tortuosity detectors 215, wherein the two tortuosity detectors 215 are disposed on the fixing plate of the retraction box 211 and spaced apart from and parallel to the first side wall and the second side wall, one tortuosity detector 215 is disposed corresponding to the inlet 2113 and electrically connected to the delivery assembly 213, the other tortuosity detector 215 is disposed corresponding to the outlet 2112 and electrically connected to the heating furnace 22, and the tortuosity detector 215 is used for detecting the tortuosity of the heat shrinkable tube 8 in the retraction chamber 2111.
In this embodiment, by providing the bending degree detector 215, the bending degree detector 215 detects the bending degree of the heat shrinkable tube 8 in the retraction cavity 2111 through the first side wall and the second side wall, so as to control the feeding or discharging speed of the heat shrinkable tube 8 in the retraction cavity 2111, thereby adjusting or eliminating the defect of unstable axial elongation of the heat shrinkable tube 8.
It will be appreciated that each of the curvature detectors 215 includes an emitter 2151 and a receiver 2152, the emitter 2151 being connected to the mounting plate and located on a side of the first side wall facing away from the second side wall; the receiving electrode 2152 is connected to the fixing plate and located on a side of the second sidewall opposite to the first sidewall, and the receiving electrode 2152 is disposed corresponding to the emitting electrode 2151.
In this embodiment, the emitter 2151 and the receiver 2152 are symmetrically disposed on opposite sides of the enclosure, that is, the emitter 2151 is disposed on a side of the first sidewall facing away from the second sidewall, and the receiver 2152 is disposed on a side of the second sidewall facing away from the first sidewall, so that signals emitted from the emitter 2151 reach the receiver 2152 through the transparent first and second sidewalls. As can be appreciated, the two bow detectors 215 are used to detect the degree of bending of the heat shrink tubing 8 at the entrance 2113 and exit 2112, respectively, within the retraction cavity 2111.
In this embodiment, the heat shrinkable tube 8 in the retraction cavity 2111 has two free bending structures, that is, corresponding to the inlet 2113 and the outlet 2112, and the two bending detectors 215 are respectively disposed corresponding to the inlet 2113 and the outlet 2112, so as to detect the height positions of the two free bending structures of the heat shrinkable tube 8 in the retraction cavity 2111, thereby realizing the bending degree detection.
In one embodiment, as shown in fig. 1 and 4, the retraction mechanism 21 further comprises two guide assemblies 216 disposed within the retraction cavity 2111, one guide assembly 216 disposed adjacent to the inlet 2113 and the other guide assembly 216 disposed adjacent to the outlet 2112, the drive shaft 2132 and the driven shaft 2133 being disposed between the two guide assemblies 216, each guide assembly 216 comprising a connecting plate 2161 and a guide wheel 2162, one end of the connecting plate 2161 being connected to the inner wall of the retraction cavity 2111, the guide wheel 2162 being rotatably connected to the other end of the connecting plate 2161, the guide wheel 2162 being provided with guide slots for receiving the heat shrink tubing 8.
In this embodiment, by providing the guiding component 216, the guiding component 216 is utilized to guide the heat shrinkable tube 8 at the inlet 2113 or the outlet 2112, and the heat shrinkable tube 8 is prevented from being bent excessively in the moving process, so that the processing and production and the product quality of the heat shrinkable tube 8 are affected. Each guide assembly 216 includes a connector plate 2161 and a guide wheel 2162, one end of the connector plate 2161 being connected to an inner wall of the retraction cavity 2111; the guide wheel 2162 is rotatably connected to the other end of the connection plate 2161, and the guide wheel 2162 is provided with a guide groove for accommodating the heat shrinkable tube 8.
In this embodiment, the connecting plate 2161 may be a U-shaped plate or two oppositely disposed plate-like structures, one end of the connecting plate 2161 is connected to the fixing plate, and the other end extends into the retraction cavity 2111. The guide wheel 2162 is rotatably connected with the connecting plate 2161, and the guide wheel 2162 is provided with a guide groove for accommodating the heat shrinkable tube 8.
It can be understood that, in order to adjust the position of the guide wheel 2162, a plurality of mounting locations are provided on the connecting plate 2161, and are arranged at intervals along the length direction of the connecting plate 2161, and the position of the guide wheel 2162 is adjusted by adjusting the position of the mounting location of the guide wheel 2162 on the connecting plate 2161.
In one embodiment, as shown in fig. 1 and fig. 3, the heating furnace 22 includes a furnace body 221 and a conveying wheel 222, the furnace body 221 is disposed at the inlet 2113, the furnace body 221 is provided with a heating cavity 2211 and an inlet 2212, the inlet 2212 is located at an end of the furnace body 221 away from the inlet 2113, the conveying wheel 222 is disposed at the inlet 2212, the conveying wheel 222 includes two conveying rollers 2221 disposed oppositely, a conveying channel 2222 is formed between the two conveying rollers 2221, and the conveying channel 2222 is opposite to and communicated with the inlet 2212 for conveying the heat shrinkable tube 8 of the tube releasing roller 11 into the inlet 2212.
In this embodiment, the furnace body 221 may be a cylindrical or columnar structure with a cavity, that is, the furnace body 221 has a heating cavity 2211, one end of the furnace body 221 is connected to the inlet 2113 on the fixing plate 11 of the retraction box 211, and the other end of the furnace body 221 is formed with an inlet 2212, so that the heat shrinkable tube 4 on the tube placing roller 11 can enter the heating cavity 2211 from the inlet 2212 for preheating or preheating, enter the retraction cavity 2111 through the inlet 2113, perform secondary heating and retraction shaping, be conveyed to the outlet 2112 through the conveyor belt 2134, be guided out of the outlet 2112 by the guide assembly 216, and enter the expansion mold 3 for expansion and shaping.
It can be understood that, in order to enable the heat shrinkable tube 8 to smoothly enter the heating cavity 2211 from the entrance 2212, the entrance 2212 is provided with the conveying wheel 222, the conveying wheel 222 comprises two conveying rollers 2221 which are oppositely arranged, each conveying roller 2221 is provided with a groove, the two grooves are enclosed to form a conveying channel 2222, that is, a conveying channel 2222 is formed between the two conveying rollers 2221, and the conveying channel 2222 is opposite to and communicated with the entrance 2212 for conveying the heat shrinkable tube 8 into the entrance 2212.
To different pyrocondensation pipes 8, can set for the crookedness of pyrocondensation pipe 8 in the case 211 that contracts to reach the unstable best effect of subduction supplied materials elongation, maintain this group of crookedness and carry out continuous production, can effectively reduce the unstable quality problem of axial tension of product. Due to fluctuation of the incoming material of the heat shrinkable tube 8, when the heat shrinkable tube 8 is retracted and shaped in the retraction box 211, the two groups of free bends fluctuate randomly, and the fluctuation is required to be controlled to keep the degree of curvature within a set range for stable production.
It can be understood that by controlling the speed of the conveying wheel 222 and the conveyor belt 2134, two free bending states can be formed in the retraction cavity 2111 of the retraction box 211, and the heat shrinkable tube 8 can be fully retracted in the high elastic state. The bending tube between the heating furnace 22 and the conveyor belt 2134 is defined as the first bend, and the bending tube between the conveyor belt 2134 and the expansion die 3 is defined as the second bend.
In this embodiment, the camber of the first bend is kept and controlled by monitoring the high and low positions of the first bend by the camber detector 215 corresponding to the inlet 2113, if the detected value is higher than the set value, which indicates that the retraction amount is larger, the incoming material needs to be increased in time, and the pipe conveying speed of the conveying wheel 222 needs to be increased; if the detection value is lower than the set value, which indicates that the retraction amount is smaller, the incoming material needs to be reduced in time, at this time, the pipe conveying speed of the conveying wheel 222 needs to be reduced, and the speed of the bending detector 215 and the speed of the conveying wheel 222 form closed-loop control to maintain dynamic balance.
The bending degree maintaining control of the second bend is to monitor the high-low position of the second bend through a bending degree detector 215 corresponding to the outlet 2112, if the detection value is higher than the set value, the retraction amount is larger, the incoming material needs to be increased in time, and at this time, the conveying speed of the conveyor belt 2134 needs to be increased; if the detection value is lower than the set value, which indicates that the retraction amount is smaller, the incoming material needs to be reduced in time, at this time, the conveying speed of the conveyor belt 2134 needs to be reduced, the speeds of the curvature detector 215 and the conveyor belt 2134 form closed-loop control, and dynamic balance is maintained.
In one embodiment, as shown in fig. 1, 5 and 6, the traction device 4 includes a base 41, a second driving member 42, a traction structure 43 and an auxiliary traction assembly 44, wherein the second driving member 42 is disposed on the base 41; the traction structure 43 is arranged on the base body 41 and is in transmission connection with the second driving piece 42, and the traction structure 43 is provided with a traction channel 432 a; the auxiliary traction assembly 44 is disposed on the base 41 and is in transmission connection with the second driving element 42, the auxiliary traction assembly 44 is provided with an auxiliary traction channel 44a for traction of the heat shrinkable tube 8, and the auxiliary traction channel 44a and the traction channel 432a are spaced and arranged in parallel.
In this embodiment, the base 41 is used to mount, support and fix the second driving element 42, the pulling structure 43, the auxiliary pulling assembly 44, and the like, and the structure of the base 41 may be a support frame, a mounting table, a mounting shell or a housing, and is not limited herein. It will be appreciated that, as shown in fig. 1 and 5, the base 41 includes a bottom plate and a protective cover disposed on the bottom plate, the protective cover and the bottom plate enclose a mounting cavity, the second driving element 42 is disposed in the mounting cavity, and the traction structure 43 and the auxiliary traction assembly 44 are partially disposed in the mounting cavity, so that the protective cover protects the second driving element 42, the traction structure 43 and the auxiliary traction assembly 44.
It is understood that the second driving member 42 is used for providing a driving force for the traction structure 43 and the auxiliary traction assembly 44, and the second driving member 42 may be a driving motor, a servo motor, a driving motor or a reduction motor, etc., and is not limited herein.
In this embodiment, the traction structure 43 is used for traction of the heat shrinkable tube 8, and the traction structure 43 may be a traction roller set or the like, and by providing the traction channel 432a, the heat shrinkable tube 8 is clamped and pulled by using the traction channel 432 a. The auxiliary traction assembly 44 is used for traction of the heat shrinkable tube 8, the auxiliary traction assembly 44 can be a traction roller set and the like, and the heat shrinkable tube 8 is clamped and pulled by the auxiliary traction passage 44a through the arrangement of the auxiliary traction passage 44 a. It can be understood that, by matching the auxiliary traction assembly 44 with the traction structure 43, the traction channel 432a of the traction structure 43 and the auxiliary traction channel 44a of the auxiliary traction assembly 44 are utilized to simultaneously pull the heat shrinkable tube 8, so as to ensure that the heat shrinkable tube 8 after expansion is stably clamped and output in a traction manner, and avoid that the clamping force slips too loosely or the expansion caused by gas flowing in the tube is blocked too tightly, so that the expansion is unstable and then the dead halt is caused.
According to the traction device 4, the second driving element 42, the traction structure 43 and the auxiliary traction assembly 44 are arranged on the base body 41, the traction structure 43 and the auxiliary traction assembly 44 are driven to operate simultaneously by the second driving element 42, and the heat shrinkable tube 8 is dragged simultaneously by the traction channel 432a of the traction structure 43 and the auxiliary traction channel 44a of the auxiliary traction assembly 44, so that the expanded heat shrinkable tube 8 is stably clamped and output in a traction manner, and the phenomenon that expansion is unstable due to the fact that clamping force is too loose and slipping or gas flow in the tube is blocked too tightly to cause dead halt is avoided. The traction device 4 not only stably clamps and pulls and outputs the expanded heat shrinkable tube 8, so that the phenomenon that the expansion is unstable due to the fact that the clamping force is too loose and slippery or too tight to block the gas flow in the tube to cause dead halt is avoided, but also the heat shrinkable tube 8 can be ensured to have stable and continuous traction force after being discharged from a die when being expanded, so that the expansion is stably carried out, and defective products are reduced.
In one embodiment, as shown in fig. 5 and 6, the towing structure 43 includes a mount 431, two track assemblies 432, and a first protective cover 433, wherein the mount 431 is provided on the base 41; the two crawler assemblies 432 are arranged on the mounting seat 431 in a penetrating mode at intervals and in parallel, one end of each crawler assembly 432 is provided with a crawler 4321, the other end of each crawler assembly 432 is provided with a first gear 4323, the two first gears 4323 are meshed and connected, one end, away from the crawler 4321, of each crawler assembly 432 is provided with a first pulley 4322, the first pulleys 4322 and the first gears 4323 are arranged at intervals and are in transmission connection with the second driving piece 42 through a transmission belt 421, and the two crawler assemblies 4321 are arranged oppositely and matched to form a traction channel 432 a; the first protective cover 433 is provided with a first cavity 4331 and a first gap 4332 communicating with the first cavity 4331, the caterpillar band 4321 is accommodated in the first cavity 4331 and partially exposed in the first gap 4332, and the traction passage 432a is correspondingly communicated with the first gap 4332.
In the embodiment, the mounting seat 431 is used for supporting, mounting and fixing the two track assemblies 432 and the first protective cover 433, and the structure of the mounting seat 431 may be a mounting plate, a mounting shell, a mounting table or a mounting frame, which is not limited herein. It will be appreciated that the mounting seat 431 may be welded or integrally formed to the bottom plate of the base 41 and/or the shield, thereby improving the mounting stability.
It will be appreciated that two track assemblies 432 are arranged in parallel and spaced apart, two track assemblies 432 are disposed through the mounting 431, and each track assembly 432 is provided with a track 4321 at an end thereof that extends through the mounting 431, such that the two tracks 4321 of the two track assemblies 432 are disposed opposite to each other and cooperate to form a traction channel 432 a. In order to enable the two track assemblies 432 to synchronously rotate, so that the traction channel 432a formed by the two tracks 4321 can drive the heat shrinkable tube 8 to move, and thus the heat shrinkable tube 8 is dragged, one end of each track assembly 432 away from the track 4321 is in transmission connection, for example, the transmission connection is realized by adopting a structure such as a transmission belt, a chain, gear engagement, and the like.
In this embodiment, in order to facilitate the second driving member 42 to drive the two track assemblies 432 to rotate, a first belt 4322 is disposed at an end of one track assembly 432 away from the track 4321, and the first belt 4322 is in transmission connection with the second driving member 42 through the transmission belt 421. It will be appreciated that the output shaft of the second driving member 42 is provided with a pulley, such that the belt 421 is sleeved on the pulley of the second driving member 42 and the first pulley 4322 of one track assembly 432, such that the second driving member 42 drives the pulley to rotate the belt 421 and the first pulley 4322, such that the track assembly 432 provided with the first pulley 4322 rotates, and the other track assembly 432 rotates synchronously, thereby providing power to the traction passage 432 a.
As can be appreciated, the first protective guard 433 serves to protect the track 4321 and the traction channel 432 a. In this embodiment, the first protective cover 433 is in a housing, a box, or a cover structure, that is, the first protective cover 433 has a first cavity 4331, so that the heat shrinkable tube 8 in the traction channel 432a can be pulled from the first cavity 4331 to the auxiliary traction channel 44a, the first protective cover 433 is provided with a first notch 4332 communicating with the first cavity 4331, so that the track 4321 is partially exposed at the first notch 4332, and the traction channel 432a is correspondingly communicated with the first notch 4332.
In the present embodiment, each track assembly 432 includes two track shafts, two traction wheels, two chain wheels, and a first gear 4323, wherein the two track shafts are spaced and parallelly inserted through the mounting seat 431; each traction wheel is arranged at one end of a crawler belt shaft, and the crawler belt 4321 is sleeved on the two traction wheels; each chain wheel is arranged at one end of a crawler belt shaft far away from the traction wheel, and the two chain wheels are in transmission connection through a chain; the first gear 4323 is arranged at one end of a track shaft far away from the traction wheel, and the first gear 4323 and the chain wheel are arranged at intervals; wherein the first gear 4323 of one track assembly 432 is in meshing engagement with the first gear 4323 of the other track assembly 432.
In this embodiment, as shown in fig. 6, each track assembly 432 may be provided with one or two track shafts, and by providing two track shafts, the two track shafts are spaced and parallelly inserted into the mounting seat 431, so that the length of the traction channel 432a can be effectively increased, and the traction force of the traction channel 432a on the heat shrinkable tube 8 can be ensured. It will be appreciated that the track shaft may be rotatably mounted to the mount 431 by means of a bearing arrangement. One end of each crawler shaft is provided with a traction wheel, the other end of each crawler shaft is provided with a chain wheel, namely the traction wheel and the chain wheel are positioned on two opposite sides of the mounting seat 431, so that the mutual interference between the traction wheel and the chain wheel on the crawler shaft is avoided, and the stress balance is achieved.
As can be appreciated, the tracks 4321 are mounted on the two traction wheels of each track assembly 432 such that the two tracks 4321 of the two track assemblies 432 are disposed opposite to each other to cooperatively form the traction channel 432 a. Two caterpillar bands axle is through establishing structures such as chain or drive belt on two sprocket to confirm that two caterpillar bands axle realize synchronous rotation. The first gear 4323 is arranged at one end of one track shaft far away from the traction wheel, so that the two track assemblies 432 are respectively meshed through the first gears 4323 of the two track shafts, and synchronous rotation is realized while transmission connection is realized.
A track shaft of the two track assemblies 432 provided with the first gear 4323 is further provided with a first pulley 4322, so that the first gear 4323 and the first pulley 4322 are coaxially arranged at an interval, and thus the second driving member 42 drives the pulley to drive the transmission belt 421 and the first pulley 4322 to rotate, so that a track shaft provided with the first pulley 4322 rotates to drive the two first gears 4323 of the two track assemblies 432 to rotate in a meshed manner, so that the two track assemblies 432 synchronously rotate, and meanwhile, the two track shafts of the track assemblies 432 synchronously rotate through a sprocket and a chain, thereby providing power for the traction channel 432 a.
In this embodiment, two track assemblies 432 are provided, two track shafts are provided on each track assembly 432, and the two track assemblies 432 and the two track shafts of each track assembly 432 synchronously rotate through the cooperation of the chain wheel and the first gear 4323, so that the four traction wheels of the two track assemblies 432 simultaneously drive the two tracks 4321 to synchronously rotate, and the heat shrinkable tube 8 is conveyed and pulled by the traction channel 432 a.
In an embodiment, as shown in fig. 5 and 6, the mounting seat 431 includes a first mounting seat 4311 fixedly disposed on the base 41 and a second mounting seat 4312 movably disposed on the base, the first mounting seat 4311 and the second mounting seat 4312 are provided with mounting holes 4313 coaxially disposed, one track assembly 432 is disposed through the first mounting seat 4311, and the other track assembly 432 is disposed through the second mounting seat 4312.
It can be understood that, by arranging the mounting seat 431 as the first mounting seat 4311 and the second mounting seat 4312 arranged at intervals, and making the first mounting seat 4311 fixedly arranged on the base body 41, the second mounting seat 4312 movably arranged on the base, one crawler component 432 is arranged through the first mounting seat 4311, and the other crawler component 432 is arranged through the second mounting seat 4312, so that the second mounting seat 4312 drives the one crawler component 432 to be close to or far away from the other crawler component 432 of the first mounting seat 4311, the size adjustment of the traction channel 432a is realized, and the extrusion deformation amount is adjusted according to the heat shrinkable tubes 8 of different specifications to provide suitable traction force.
In an embodiment, as shown in fig. 5 and 6, the pulling structure 43 further includes an adjusting assembly 434, the adjusting assembly 434 includes an adjusting part 4341 and a return spring 4344, wherein the adjusting part 4341 includes an adjusting rod 4342 and a hand wheel 4343 disposed at one end of the adjusting rod 4342, and the adjusting rod 4342 is rotatably disposed through the two mounting holes 4313; the adjusting rod 4342 is sleeved with the return spring 4344, and two ends of the return spring 4344 are elastically abutted against the first mounting seat 4311 and the second mounting seat 4312 respectively; the hand wheel 4343 drives the adjustment rod 4342 to rotate, so that the second mounting seat 4312 is close to or far away from the first mounting seat 4311.
In this embodiment, the first mounting seat 4311 and the second mounting seat 4312 are respectively provided with a mounting hole 4313 coaxially disposed, so that the adjusting rod 4342 of the adjusting member 4341 sequentially penetrates through the two mounting holes 4313, the adjusting rod 4342 is rotatably engaged with the two mounting holes 4313, and the hand wheel 4343 can be used to drive the adjusting rod 4342 to rotate, so that the second mounting seat 4312 is close to or far from the first mounting seat 4311.
It can be understood that a bearing structure is disposed in the mounting hole 4313 of the first mounting seat 4311, so that the adjusting rod 4342 is rotatably connected with the first mounting seat 4311 through the bearing structure, a thread is disposed in the mounting hole 4313 of the second mounting seat 4312, and an external thread is disposed on an outer wall of the adjusting rod 4342, so that the external thread of the adjusting rod 4342 is engaged with the thread in the mounting hole 4313 of the second mounting seat 4312 to achieve the rotatable connection.
In order to avoid that the second mounting seat 4312 applies too much force or too much force when driving one crawler belt assembly 432 to approach another crawler belt assembly 432 in the rotation process of the adjusting rod 4342, so that the force of the traction channel 432a formed by matching the two crawler belts 4321 is too large to flatten the heat shrink tube 8, the adjusting rod 4342 is sleeved with a return spring 4344, so that the return spring 4344 is positioned between the first mounting seat 4311 and the second mounting seat 4312 and elastically abuts against the first mounting seat 4311 and the second mounting seat 4312, so that the return buffer is realized by the return spring 4344, and thus, by adjusting the gap (the traction channel 432a) between the two crawler belts 4321, the traction structure 43 can adjust the extrusion deformation amount according to the heat shrink tubes 8 of different specifications to provide proper traction force, and improve the universality and the convenience.
In this embodiment, the second mounting seat 4312 is provided with a sliding groove, and the base 41 is provided with a sliding rail, wherein the sliding groove is slidably engaged with the sliding rail. It can be understood that, by providing a slide rail on the bottom plate of the base 41 and providing a slide groove on the second mounting seat 4312, the slide guide is realized for the movement of the second mounting seat 4312 by the slide fit of the slide groove and the slide rail.
In one embodiment, as shown in fig. 5, the auxiliary pulling assembly 44 includes a fixing base 441, two auxiliary shafts 442, and a second protecting cover 446, wherein the fixing base 441 is disposed on the base 41; the two auxiliary shafts 442 are arranged on the fixed seat 441 in a spaced and parallel manner, one end of each of the two auxiliary shafts 442 is provided with an auxiliary traction wheel 443, the other end of each of the two auxiliary shafts 442 is provided with a second gear 444, the two second gears 444 are connected in a meshed manner, one end of one auxiliary shaft 442 away from the auxiliary traction wheel 443 is provided with a second belt wheel 445, the second belt wheel 445 and the second gear 444 are arranged in a spaced manner and are in transmission connection with the second driving element 42 through a transmission belt 421, and the two auxiliary traction wheels 443 are arranged oppositely and are matched to form an auxiliary traction channel 44 a; the second protective cover 446 is provided with a second cavity 4461 and a second notch 4462 communicated with the second cavity 4461, the two auxiliary traction wheels 443 are accommodated in the second cavity 4461 and partially exposed out of the second notch 4462, and the auxiliary traction channel 44a is correspondingly communicated with the second notch 4462.
In this embodiment, the fixing base 441 is used to mount, support and fix the two auxiliary shafts 442 and the second protection cover 446, and the fixing base 441 may be a mounting plate, a mounting case, a mounting table, a mounting rack, or the like, which is not limited herein. It is understood that the fixing seat 441 may be welded or integrally formed on the bottom plate and/or the protective cover of the base 41, so as to improve the installation stability.
It can be understood that the two auxiliary shafts 442 may respectively pass through the fixing base 441 through the bearing structure in a rotating manner, the two auxiliary shafts 442 are disposed in parallel at intervals, and one end of each auxiliary shaft 442 is provided with an auxiliary traction wheel 443, such that the two auxiliary traction wheels 443 of the two auxiliary shafts 442 are disposed oppositely and cooperatively form the auxiliary traction channel 44 a. In order to enable the two auxiliary shafts 442 to drive the two auxiliary traction wheels 443 to rotate synchronously, one end of each auxiliary shaft 442 away from the auxiliary traction wheels 443 is in transmission connection, for example, the transmission connection is achieved by a transmission belt, a chain, a gear mesh, and the like.
In this embodiment, a second gear 444 is disposed at an end of each of the auxiliary shafts 442 away from the auxiliary traction wheel 443, that is, the second gear 444 and the auxiliary traction wheel 443 are disposed on opposite sides of the fixed base 441, and the two second gears 444 of the two auxiliary shafts 442 are meshed and connected.
In order to facilitate the rotation of the two auxiliary shafts 442 driven by the second driving member 42, a second pulley 445 is disposed at an end of one of the auxiliary shafts 442 away from the auxiliary traction wheel 443, and the second pulley 445 is spaced apart from the second pulley 444 and is in transmission connection with the second driving member 42 through the transmission belt 421. It can be understood that the output shaft of the second driving member 42 is provided with a pulley, so that the belt 421 is sleeved on the pulley of the second driving member 42 and the second pulley 445 of the auxiliary shaft 442, so that the second driving member 42 drives the pulley to drive the belt 421 and the second pulley 445 to rotate, so that the auxiliary shaft 442 provided with the second pulley 445 rotates, and thus the two second gears 444 are meshed to connect and drive the other auxiliary shaft 442 to rotate synchronously, thereby providing power for the auxiliary traction channel 44 a.
It will be appreciated that the second boot 446 serves to protect the two auxiliary traction wheels 443 and the auxiliary traction channel 44 a. In this embodiment, the second protection cover 446 is in a shell or a box or a cover structure, that is, the second protection cover 446 has a second cavity 4461, so that the heat shrinkable tube 8 in the auxiliary traction channel 44a can be rolled up, the second protection cover 446 is provided with a second notch 4462 communicating with the second cavity 4461, so that the auxiliary traction wheel 443 is partially exposed in the second notch 4462, and the auxiliary traction channel 44a is correspondingly communicated with the second notch 4462.
In this embodiment, as shown in fig. 5, the fixing base 441 includes a fixing body disposed on the base 41 and a sliding plate, the fixing body is provided with a movable slot, the sliding plate is slidably connected in the movable slot, one auxiliary shaft 442 penetrates through the fixing body, and the other auxiliary shaft 442 penetrates through the sliding plate.
It can be understood that, by setting the fixing base 441 as a fixing body and a sliding plate, the fixing body is fixedly arranged on the base 41, by setting a movable groove on the fixing body and slidably connecting the sliding plate in the movable groove, one auxiliary shaft 442 penetrates through the fixing body, and the other auxiliary shaft 442 penetrates through the sliding plate, so that the sliding plate drives the auxiliary shaft 442 to slide or move relative to the fixing body to be close to or far away from the other auxiliary shaft 442, thereby realizing the size adjustment of the auxiliary traction channel 44a, and adjusting the extrusion deformation amount according to the heat shrinkable tubes 8 of different specifications to provide a suitable traction force.
In an embodiment, as shown in fig. 5, the auxiliary traction assembly 44 further includes a mounting plate and an adjusting screw, the mounting plate is disposed at the notch of the movable groove, and the mounting plate is provided with an adjusting hole communicated with the movable groove; the adjusting screw rod is rotatably arranged in the adjusting hole in a penetrating manner, one end of the adjusting screw rod, which extends into the movable groove, is rotatably connected with the sliding plate, and the other end of the adjusting screw rod is provided with a hand wheel; wherein, the hand wheel drives adjusting screw to rotate to make the sliding plate approach or keep away from the mounting panel.
In this embodiment, the mounting plate can be fixed on the fixed body by welding or integrally forming structure and is located at the notch of the movable groove. Of course, in other embodiments, the mounting plate may also be disposed on the fixing body in a manner of snap connection, plug-in fit, screw connection, or pin connection, which may improve the convenience of assembly and disassembly, and is not limited herein.
It can be understood that the adjusting hole of intercommunication activity groove is seted up to the mounting panel, can be provided with the screw thread in the adjusting hole, and adjusting screw's outer wall is equipped with the external screw thread to utilize the screw-thread fit in external screw thread and the adjusting hole, make adjusting screw rotate and wear to locate the adjusting hole, adjusting screw's one end is passed the adjusting hole and is stretched into in the activity groove, and is connected with the sliding plate rotation. A hand wheel is arranged at one end of the adjusting screw rod far away from the sliding plate, so that the hand wheel can be used for driving the adjusting screw rod to rotate, so that the sliding plate drives one auxiliary shaft 442 to be close to or far away from the other auxiliary shaft 442, and the size of the auxiliary traction channel 44a is adjusted.
Of course, in other embodiments, an adjusting cylinder or other adjusting structure may be connected to the sliding plate to adjust the size of the auxiliary traction channel 44a, which is not limited herein. It can be understood that the inner wall of the movable groove is provided with a slide rail, and the sliding plate is provided with a sliding groove in sliding fit with the slide rail.
In the present embodiment, the auxiliary pulling member 44 is provided, so that the expanded heat shrinkable tube 8 is led out from the pulling channel 432a of the pulling structure 43 to the outside by the auxiliary pulling member 44 for subsequent storage. The output linear velocity of the auxiliary traction assembly 44 is slightly greater than the linear velocity of the traction structure 43, so that the heat shrinkable tube 8 can be always in a tightened state between the traction channel 432a and the auxiliary traction channel 44a, the auxiliary traction assembly 44 adjusts a gap (the auxiliary traction channel 44a) between the two auxiliary traction wheels 443 through the adjusting screw, and the heat shrinkable tube 8 and the two auxiliary traction wheels 443 slightly slip by adjusting the gap, so that the drawn heat shrinkable tube 8 can be always kept in a tightened state, and the heat shrinkable tube 8 can be prevented from being stretched and deformed. Meanwhile, the extrusion deformation of the heat shrinkable tube 8 is small, and the good circulation of the compressed gas inside the heat shrinkable tube 8 is also ensured.
It can be understood that when the handwheel drives the adjusting screw to rotate, so as to adjust the gap between the two auxiliary traction wheels 443 (the auxiliary traction channel 44a), the two second gears 444 of the two auxiliary shafts 442 are still in mesh transmission when the gap between the two auxiliary traction wheels 443 is fine-tuned within a certain range, and the change of the center distance of the second gears 444 within the range can still ensure that the two second gears 444 can be stably meshed.
In an embodiment, as shown in fig. 5, the towing device 4 further includes a limiting component 45, the limiting component 45 includes a fixing plate 451 and two limiting rods 452, the fixing plate 451 is disposed on the base 41 and located between the towing structure 43 and the auxiliary towing component 44, the two limiting rods 452 are disposed on an end of the fixing plate 451 away from the base 41, the two limiting rods 452 are disposed in parallel and spaced apart, and cooperatively form a limiting groove 453, and the limiting groove 453 is located on the same straight line with one end of the towing channel 432a and one end of the auxiliary towing channel 44 a.
It can be understood that, by arranging the limiting component 45 between the pulling structure 43 and the auxiliary pulling component 44, the limiting groove 453 of the limiting component 45 is positioned on the same line with one end of the pulling channel 432a and one end of the auxiliary pulling channel 44a, so that the limiting groove 453 is used for guiding and limiting the heat shrinkable tube 8 between the pulling channel 432a and the auxiliary pulling channel 44a, and the heat shrinkable tube 8 is prevented from sliding down from the pulling channel 432a and/or the auxiliary pulling channel 44a during pulling to cause defective products
In the present embodiment, the fixing plate 451 may have a plate-like or rod-like structure, but is not limited thereto. The fixing plate 451 is used to support, fix and mount two stopper rods 452. The two position-limiting rods 452 may be plate-shaped or rod-shaped, and the two position-limiting rods 452 are disposed in parallel at an interval on the fixing plate 451 and cooperate to form a position-limiting groove 453.
It can be understood that one of the two limiting rods 452 is fixedly connected with the fixing plate 451, and the other limiting rod 452 is movably connected with the fixing plate 451, so that the distance between the two limiting rods 452 can be adjusted to adjust the size of the limiting groove 453, thereby ensuring that the limiting groove 453 can be suitable for heat shrinkable tubes 8 with different sizes, and improving the universality and the convenience in use.
In this embodiment, a strip-shaped hole is formed in the fixing plate 451, and a stopper 452 penetrates through the strip-shaped hole and can move along the strip-shaped hole, so that the distance between the two stoppers 452 can be adjusted, which is not limited herein. The limiting component 45 of the embodiment is used for limiting the conveying position of the heat shrinkable tube 8 through the limiting groove 453, so that the heat shrinkable tube 8 is ensured to be transmitted on the central surface of the traction channel 432a or the auxiliary traction channel 44a, and the heat shrinkable tube 8 is prevented from deviating.
In an embodiment, as shown in fig. 5, the traction device 4 further includes a tensioning assembly 46 located between the second driving element 42 and the traction structure 43 and/or the auxiliary traction assembly 44, the tensioning assembly 46 includes a limiting plate 461, a roller shaft 463 and a screw 465, the limiting plate 461 is disposed on the base 41, the limiting plate 461 is provided with a strip-shaped hole 462, one end of the roller shaft 463 is provided with a roller 464, the other end of the roller shaft 463 penetrates through the strip-shaped hole 462 and is provided with a screw hole, and one end of the screw 465 penetrates through the base 41 and the limiting plate 461 and extends into the strip-shaped hole 462 and penetrates through the screw hole.
In this embodiment, the limiting plate 461 is used for supporting, mounting and fixing the roller shaft 463, the roller 464 and the screw 465, and the structure of the limiting plate 461 may be a plate-shaped structure, a mounting table, a mounting rack or a mounting seat, and is not limited herein. It can be understood that the limiting plate 461 can be welded or integrally formed on the bottom plate of the base 41, so as to improve the installation stability. Of course, in other embodiments, the position limiting plate 461 can be detachably disposed on the bottom plate of the base 41 by a snap connection, a plug fit, a screw connection, or a pin connection, so as to improve the convenience of assembling and disassembling the tensioning assembly 46.
As can be understood, by providing the strip-shaped hole 462 on the limiting plate 461, the strip-shaped hole 462 extends along the length direction of the limiting plate 461, so that the roller shaft 463 penetrates through the strip-shaped hole 462, thereby facilitating the roller shaft 463 to move along the strip-shaped hole 462, and realizing the position adjustment of the roller shaft 463. In this embodiment, the roller 464 is rotatably sleeved on the roller shaft 463 through a bearing structure, and the roller 464 abuts against the transmission belt 421, so that the roller 464 compresses or tensions the transmission belt 421 by adjusting the position of the roller shaft 463, and the transmission of the second driving member 42 is ensured to be good.
In this embodiment, by providing the screw 465 and providing a screw hole at the end of the roller shaft 463 extending into the bar hole 462, one end of the screw 465 extends into the bar hole 462 through the base 41 and the stopper plate 461 and is inserted into the screw hole, so that the roller shaft 463 moves along the bar hole 462 by the rotation of the screw 465, and the position of the roller shaft 463 can be adjusted. Of course, in other embodiments, the screw 465 may be replaced by an adjusting cylinder or other adjusting structure, which is not limited herein.
According to the traction device 4, the traction structure 43 is arranged, the traction structure 43 is used for uniformly and stably leading out the heat shrinkable tube 8 from the expansion die 8, the crawler belt type structure is adopted, sufficient traction force can be guaranteed to be provided for the heat shrinkable tube 8 under smaller extrusion deformation, the crawler belt 4321 adjusts the gap, and the extrusion deformation amount is adjusted according to the heat shrinkable tubes 8 with different specifications to provide proper traction force. By providing the auxiliary pulling member 44, the expanded heat shrinkable tube 8 is led out from the inside of the pulling structure 43 to the outside for subsequent storage. The output linear velocity of the auxiliary traction assembly 44 is slightly greater than the linear velocity of the traction structure 43, so that the heat shrink tube 8 can be ensured to be always in a tightened state between the traction channel 432a and the auxiliary traction channel 44a, the gap between the two auxiliary traction wheels 443 of the auxiliary traction assembly 44 can be adjusted, and the heat shrink tube 8 and the two auxiliary traction wheels 443 can slightly slip by adjusting the gap, so that the drawn heat shrink tube 8 can be ensured to be always kept in a tightened state, the heat shrink tube 8 can be prevented from being stretched and deformed, meanwhile, the extrusion deformation of the tube is small, and the good circulation of compressed gas in the heat shrink tube 8 is also ensured. By using the belt 421 to connect the output shaft of the second driving member 42 with the traction structure 43 and the auxiliary traction assembly 44 in a transmission manner, stable power supply to the traction structure 43 and the auxiliary traction assembly 44 is ensured. The arrangement of the limiting component 45 utilizes the limiting groove 453 to limit the conveying position of the heat shrinkable tube 8, so that the heat shrinkable tube 8 is ensured to be transmitted on the central surface of the traction channel 432a and/or the auxiliary traction channel 44a, and the heat shrinkable tube 8 is prevented from deviating. It can be understood that the tensioning assembly 46 is provided, so that the roller shafts 463 are engaged with the strip-shaped holes 462 of the limit plates 461 and the screws 465, so that the roller shafts 463 drive the rollers 464 to press or tension the belt 421 between the output shaft of the second driving member 42 and the traction structure 43 and/or the belt 421 between the output shaft of the second driving member 42 and the auxiliary traction assembly 44, thereby ensuring smooth transmission.
In an embodiment, as shown in fig. 1 and fig. 2, the tube releasing structure 1 includes a first base 12, a first driving assembly 13 and a first tension assembly 14, the first base 12 is provided with an accommodating cavity 121, the first driving assembly 13 includes a first driving motor 131 disposed on the first base 12 and two first driving rollers 132 in transmission connection with the first driving motor 131, the two first driving rollers 132 are disposed in the accommodating cavity 121 at intervals and cooperate to form a first driving groove 133, the tube releasing roller 11 is disposed in the first driving groove 133, the first tension assembly 14 includes a first bracket 141 and a first guide wheel 143 disposed on the first base 12, the first bracket 141 is provided with a first detecting groove 142, the first guide wheel 143 is disposed on the first bracket 141 and is disposed corresponding to the first detecting groove 142, and the heat shrinkable tube 8 of the tube releasing roller 11 passes through the first detecting groove 142 and abuts against the first guide wheel 143.
In the present embodiment, the first base 12 is used to support, mount and fix the components such as the first driving assembly 13 and the first tension assembly 14, and the first base 12 may be a mounting plate, a mounting shell, a mounting table, a mounting frame, and the like, which are not limited herein. Of course, in other embodiments, in order to match the structural directions of the first driving assembly 13 and the first tension assembly 14, the first base 12 may also be a bracket structure or a gantry structure with a certain height difference, which is not limited herein.
It can be understood that, by providing the accommodating cavity 121 on the first base 12, the accommodating cavity 121 can be conveniently used for accommodating and installing the two first driving rollers 132 of the first driving assembly 13, and a space can be provided for the placing and rolling of the tube placing roller 11. The first driving motor 131 may be selected from a driving motor, a servo motor, and the like, which can provide a driving force, and is not limited herein.
In the present embodiment, two first driving rollers 132 are disposed in parallel and spaced in the accommodating cavity 121 of the first base 12, and two first driving rollers 132 form a first driving groove 133 at a spacing. It is understood that the first driving roller 132 is mounted on the first base 12 through a bearing structure, and in order to avoid the first driving roller 132 wearing the tube releasing roller 11, a rubber coating structure is disposed on the first driving roller 132. The two first driving rollers 132 are in transmission connection with the first driving motor 131 through a belt, so that the two first driving rollers 132 can be synchronously driven to rotate through the first driving motor 131, and the pipe placing roller 11 in the first driving groove 133 is driven to rotate so as to achieve pipe placing.
It can be understood that the pipe placing structure 1 is adopted to eliminate the problems of expansion and stretching exceeding standards and dead halt caused by folding or compression deformation of the expansion finished product heat shrinkable pipe 8, eliminate the problem that the frame placing of the next packaging procedure is easy to generate the pipe placing, knotting and dead halt, and simultaneously pave the road for the packaging automation.
In this embodiment, by providing the first tension assembly 14 and providing the first detecting groove 142 on the first bracket 141, so that the heat shrinkable tube 8 on the tube releasing roller 11 passes through the first detecting groove 142, the height position of the heat shrinkable tube 8 can be detected by using the first detecting groove 142, and thus the operation condition of the first driving motor 131 can be adjusted to adjust the tube releasing speed. By providing the first guide wheel 143 on the first bracket 141, the heat shrinkable tube 8 passing through the first detection groove 142 is guided by the first guide wheel 143, and the heat shrinkable tube 8 is prevented from being folded or deformed by pressure.
In one embodiment, as shown in fig. 1 and 7, the tube collecting structure 5 includes a second base 52, a second driving assembly 53, a second tension assembly 54 and a cable arranging assembly 55, the second base 52 has an accommodating cavity 521, the second driving assembly 53 includes a second driving motor 531 disposed on the second base 52 and two second driving rollers 532 in transmission connection with the second driving motor 531, the two second driving rollers 532 are rotatably disposed in the accommodating cavity 521 and cooperate to form a second driving groove 533, the cable collecting roller 51 is disposed in the second driving groove 533, the second tension assembly 54 includes a second bracket 541 and a second guide wheel 543 disposed on the second base 52, the second bracket 541 has a second detecting groove 542, the second guide wheel 543 is disposed on the second bracket 541 and corresponds to the second detecting groove 542, the cable arranging assembly 55 is disposed on the second base 52, the cable arranging assembly 55 has a cable arranging wheel 551 disposed between the cable collecting roller 51 and the second detecting groove 542, the heat shrinkable tube 8 sequentially passes through the second guide wheel 543, the second detection groove 542 and the wire arranging wheel 551 and is wound on the tube collecting roller 51.
In this embodiment, the second base 52 is used to support, mount and fix the second driving assembly 53, the second tension assembly 54, the cable assembly 55 and the like, and the second base 52 may be a mounting plate, a mounting housing, a mounting table, a mounting rack and the like, which is not limited herein. Of course, in other embodiments, in order to match the structural directions of the second driving assembly 53, the second tension assembly 54 and the cable assembly 55, the second base 52 may also be a bracket structure or a gantry structure with a certain height difference, which is not limited herein.
It can be understood that, by providing the accommodating chamber 521 on the second base 52, the accommodating chamber 521 can be conveniently used for accommodating and mounting the two second driving rollers 532 of the second driving assembly 53, and a space can be provided for the placement and rolling of the pipe collecting roller 51. The second driving motor 531 may be selected from a driving motor, a servo motor, and the like, which can provide a driving force, and is not limited herein.
In this embodiment, two second driving rollers 532 are spaced and arranged in parallel in the accommodating cavity 521 of the second base 52, and the two second driving rollers 532 form a second driving groove 533 at a spacing. It can be understood that the second driving roller 532 is mounted on the second base 52 through a bearing structure, and in order to avoid the second driving roller 532 wearing the pipe collecting roller 51, a rubber coating structure is disposed on the second driving roller 532. The two second driving rollers 532 are in transmission connection with the second driving motor 531 through a belt, so that the two second driving rollers 532 can be synchronously driven to rotate through the second driving motor 531, and the pipe collecting rollers 51 in the second transmission grooves 533 are driven to rotate to collect pipes.
It can be understood that, by providing the second tension assembly 54 and providing the second detecting groove 542 on the second bracket 541, the heat shrinkable tube 8 passing through the traction device 4 passes through the second detecting groove 542, the height position of the heat shrinkable tube 8 can be detected by using the second detecting groove 542, and thus the operating condition of the second driving motor 531 can be adjusted to adjust the tube retracting speed. Through setting up second guide pulley 543 at second support 541, utilize second guide pulley 543 to realize the direction to heat shrinkable tube 8 through draw gear 4, avoid heat shrinkable tube 8 to buckle or oppress the deformation.
In this embodiment, the flat cable assembly 55 is disposed on the second base 52, so that the flat cable wheel 551 of the flat cable assembly 55 is used to further guide and arrange the flat cable on the heat shrinkable tube 8, thereby preventing the heat shrinkable tube 8 wound on the tube winding roller 51 from being broken or pressed and deformed. Alternatively, the traverse assembly 55 may be a traverse or the like, and is not limited thereto.
In one embodiment, as shown in fig. 1, the processing apparatus 100 further comprises a diameter gauge 6, the diameter gauge 6 is disposed between the expansion die 3 and the drawing passage 432a, and the diameter gauge 6 is used for detecting the diameter of the heat shrinkable tube 8 passing through the expansion die 3.
It can be understood that the diameter measuring instrument 6 is arranged at the outlet of the expansion die 3, so that the diameter measuring instrument 6 is used for monitoring the outer diameter of the expansion finished product heat shrinkable tube 8 at any time, and if the outer diameter does not meet the tolerance range of the set requirement, the system can send out an alarm prompt. Alternatively, the caliper 6 may be a non-contact outer diameter detector.
In one embodiment, as shown in fig. 1, the processing apparatus 100 further comprises a speed meter 7, the speed meter 7 is disposed between the outlet 2112 and the expansion die 3, and the speed meter 7 is used for detecting the conveying speed of the heat shrinkable tube 8 at the outlet 2112.
It can be understood that the velocimeter 7 is arranged at the inlet of the expansion die 3, so that the velocimeter 7 is used for detecting the speed change of the inlet of the expansion die 3, the expansion and stretching change can be truly reflected, and the expansion and stretching can be accurately controlled by automatically adjusting the speed of the heat shrink tube 8 entering the expansion die 3. The fluctuation of the expansion stretching rate of the heat shrinkable tube 8 can be regarded as being generated due to the fluctuation of the speed difference value of the heat shrinkable tube 8 entering and exiting the expansion die 3, the speed of the heat shrinkable tube exiting the expansion die 3 is the linear speed output by the motor of the traction device 4 and can be regarded as constant, the speed of the inlet is synthesized by the speed acting on the inlet after the traction speed of the outlet overcomes the resistance and the vacuum suction speed of the inlet, the synthesis speed is dynamically changed, and the speed of the inlet can be adjusted by adjusting the vacuum degree, so that the expansion stretching rate is adjusted. Since the degree of vacuum is directly applied to the expansion die 3, the response speed is high, and therefore, the accurate adjustment of the expansion stretch ratio can be realized.
According to the processing equipment 100, the transverse retraction mechanism 21 is additionally arranged on the heating structure 21, and the retraction mechanism 21 is used for retracting and shaping the heat shrinkable tube 8 before the heat shrinkable tube 8 enters the expansion die 3 for expansion, so that the influence of stretching deformation factors of all links before the heat shrinkable tube 8 is fed on the change of the stretching rate of an expanded finished product is eliminated.
It can be understood that the heat shrinkable tube 8 forms 2 free bends when passing through the retraction box 211, so that the heat shrinkable tube 8 can freely and fully retract between the two free bends in the high elastic state, and the consistency of the material is restored. Because the former deformation of each section of the heat shrinkable tube 8 fluctuates, the retraction length fluctuates, the fluctuation of the length directly influences the change of the forms of the 2 free bends, if the length fluctuates, the heat shrinkable tube 8 can be tightened or drooped to touch the wall, the expansion is directly influenced, at the moment, the conveying speed in front of the free bends needs to be adjusted, the bending is guaranteed to fluctuate in a reasonable interval, and the stable operation of the system is guaranteed.
The degree of freedom of the free bend is detected by the bending degree detector 215 (or an image observation instrument) and fed back to the automatic control system, when the degree of freedom of the free bend 1 exceeds the set highest point, the conveying speed of the conveying wheel 222 is increased, the free bend 1 is made to descend and return to the set height interval, and when the degree of freedom of the free bend 1 is lower than the set lowest point, the conveying speed of the conveying wheel 222 is reduced, and the free bend 1 is made to ascend and return to the set height interval. When the bending degree of the free bend 2 exceeds the set highest point, the conveying speed of the conveying assembly 213 is increased, so that the free bend 2 descends to return to the set height interval, and when the bending degree of the free bend 2 is lower than the set lowest point, the conveying speed of the conveying assembly 213 is reduced, so that the free bend 2 ascends to return to the set height interval.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种装饰材料吸音板成型处理方法