阅读说明：本技术 一种高品质pvc三通管注塑机 (High-quality PVC three-way pipe injection molding machine ) 是由 不公告发明人 于 2021-09-08 设计创作，主要内容包括：本发明涉及PVC三通管注塑及成品检测领域,具体是一种高品质PVC三通管注塑机,包括电机柜,电机柜上方设置有电机螺纹转轴,电机螺纹转轴外套设有总托盘,总托盘周围竖直方向开设有四个通孔,通孔内部竖直方向分别设置有一个下模具转轴,下模具转轴上方设置有下模具托,下模具托下方固定有行星齿轮,上方设置有三通管注塑模具,电机柜周围分别设置有注塑机、气压修边机、脱模机以及换模机用于执行不同任务；通过这样设置保证该设备在运行时对运动中的模具进行准确注塑,并且能在完成注塑后对该产品进行气密性检测以及对合格产品进行修边处理,减少了人力成本以及时间成本的消耗。(The invention relates to the field of PVC three-way pipe injection molding and finished product detection, in particular to a high-quality PVC three-way pipe injection molding machine which comprises an electric cabinet, wherein a motor threaded rotating shaft is arranged above the electric cabinet, a main tray is sleeved outside the motor threaded rotating shaft, four through holes are formed in the vertical direction around the main tray, a lower mold rotating shaft is respectively arranged in the vertical direction in each through hole, a lower mold support is arranged above the lower mold rotating shaft, a planetary gear is fixed below the lower mold support, a three-way pipe injection mold is arranged above the lower mold support, and an injection molding machine, an air pressure trimming machine, a demolding machine and a mold changing machine are respectively arranged around the electric cabinet and used for executing different tasks; through setting up like this and guaranteeing that this equipment is when moving to mould plastics accurately to can carry out the gas tightness after accomplishing moulding plastics and detect and carry out the deburring to qualified product to this product, reduce the consumption of human cost and time cost.)

1. A high-quality PVC three-way pipe injection molding machine comprises an electric cabinet (10), and is characterized in that a motor thread rotating shaft (23) is arranged above the electric cabinet (10), a main tray (48) is sleeved outside the motor thread rotating shaft (23), four through holes are vertically arranged around the main tray (48), a lower mold rotating shaft (22) is arranged in each through hole, a lower mold support (47) is arranged above the lower mold rotating shaft (22), and a three-way pipe injection mold (14) is arranged above the lower mold support (47); an injection molding machine (12), an air pressure edge trimmer (13), a stripper (16) and a mold changing machine (44) are respectively arranged around the electric cabinet (10).

2. The high-quality PVC tee pipe injection molding machine according to claim 1, wherein an injection head (19) is arranged below the front end of the injection molding machine (12), an injection raw material box (50) is arranged behind the injection molding machine (12), and the injection raw material box (50) is connected with the injection head (19); the middle part of the front side of the injection molding machine (12) is provided with a groove, a transmission gear is arranged in the groove, and the transmission gear is connected with an internal generator.

3. The high-quality PVC three-way pipe injection molding machine according to claim 1, wherein a pneumatic pipe (43) is arranged below the front end of the pneumatic edge trimmer (13), and an injection molding raw material box (50) is arranged behind the pneumatic edge trimmer (13) and connected with a pneumatic trimming head (59); the middle part of the front side of the pneumatic edge trimming machine (13) is provided with a groove, a transmission gear is arranged in the groove, and the transmission gear is connected with an internal generator.

4. The high-quality PVC three-way pipe injection molding machine according to claim 1, wherein a stripper sucker claw (17) and a mold changer sucker claw (45) are respectively arranged in front of the stripper (16) and the mold changer (44), a groove is arranged in the middle of the front side of the stripper (16) and the mold changer (44), a transmission gear is arranged in the groove and is connected with an internal generator, and a cooling waste liquid recovery tank (57) and a cooling liquid tank (56) are respectively arranged behind the stripper (16) and the mold changer (44).

5. The high-quality PVC tee pipe injection molding machine according to claim 1, wherein the lower ends of the lower mold rotating shafts (22) are respectively and fixedly provided with a planetary gear (15), and the planetary gears (15) are meshed and connected with a motor threaded rotating shaft (23); the double-side gear ring structure is characterized in that a double-side gear ring (11) is arranged on the outer ring of the planetary gear (15), inner teeth of the double-side gear ring (11) are connected with the planetary gear (15) in a gear meshing mode, and outer teeth of the double-side gear ring (11) are arranged in grooves in the middle of the injection molding machine (12), the pneumatic edge trimming machine (13), the demolding machine (16) and the mold changing machine (44) and are in meshing connection with inner gears of the injection molding machine (12), the pneumatic edge trimming machine and the demolding machine.

6. The high-quality PVC three-way pipe injection molding machine according to claim 2, wherein an injection molding channel (27) is formed inside the injection molding head (19), a liquid blocking block (28) is arranged below the injection molding head (19), a liquid blocking block spring (31) is arranged above the liquid blocking block (28), and the liquid blocking block (28) is connected with a liquid blocking plate spring (29) through the liquid blocking block spring (31); liquid blocking plates (30) are arranged on two sides of the liquid blocking block (28), through holes are formed in the liquid blocking plates (30) close to the tail ends, liquid blocking plate springs (29) are arranged at two ends of each liquid blocking plate (30), and the liquid blocking plates (30) are connected with the injection molding head (19) through the liquid blocking plate springs (29).

7. The high-quality PVC three-way pipe injection molding machine according to claim 3, wherein an air cavity (60) is formed inside the air pressure pipe (43), through holes are formed in two sides of the middle section of the air cavity (60), an air pressure valve (36) is arranged inside each through hole, an air blocking block spring (40) is arranged below the air cavity (60), an air blocking block (42) is fixed below the air blocking block spring (40), air transmission branches (41) are formed in two sides of the air blocking block (42), and the air transmission branches (41) are connected with the air cavity (60); an air pressure trimming head (59) is sleeved outside the air cavity (60), an air groove branch channel (37) is formed in the air pressure trimming head (59), an impeller (38) is arranged in the lower end of the air groove branch channel (37), a scraper (39) is fixed below the impeller (38), and the opening of the air groove branch channel (37) is communicated with an air pressure valve (36).

8. The high-quality PVC tee pipe injection molding machine according to claim 1, wherein the lower mold support (47) is convex, a circular groove is formed in the middle of the projection of the lower mold support (47), and two small projections are arranged on the upper surfaces of two sides of the projection of the lower mold support (47); the lower surface of the three-way pipe injection mold (14) is provided with two grooves which can be connected with a lower mold support (47) in a positioning manner, a plurality of mold positioning holes (25) are formed in the three-way pipe injection mold (14), a forming cavity (33) is formed in the middle of the three-way pipe injection mold (14), an upper mold (24) is arranged in the upper part of the forming cavity (33), an inclined mold (46) is arranged in one branched side of the forming cavity (33), the inclined mold (46) is attached to the upper mold (24), and the lower end of the upper mold (24) is attached to the lower mold support (47); the forming cavity (33) is externally provided with a cooling liquid channel (32) for storing cooling liquid, the middle section of the upper die (24) is horizontally provided with a cavity, and the tail end of the cavity is provided with a gas one-way valve (34).

Technical Field

The invention belongs to the field of PVC three-way pipe injection molding and finished product detection, and particularly relates to a high-quality PVC three-way pipe injection molding machine.

Background

The tee is also called a pipe fitting tee, is mainly used for changing the direction of fluid and is used at a branch pipe of a main pipeline, and the PVC tee is mainly produced by machining and injection molding.

The existing PVC three-way pipe injection molding machine is single in function, special personnel are needed to perform air tightness inspection after production of products, defective rate cannot be guaranteed, trimming of the pipes still needs to be performed manually after production of the pipes, otherwise installation failure is prone to occurring, and therefore consumption of human resources is high.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a high-efficiency three-way pipe injection molding machine which can carry out automatic injection molding and air tightness inspection without separating a mold and simultaneously carry out trimming treatment on overflowing raw materials.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-quality PVC three-way pipe injection molding machine comprises an electric cabinet, wherein a motor thread rotating shaft is arranged above the electric cabinet, a main tray is sleeved outside the motor thread rotating shaft, four through holes are vertically formed in the periphery of the main tray, a lower die rotating shaft is arranged inside each through hole, a lower die support is arranged above each lower die rotating shaft, and a three-way pipe injection mold is arranged above each lower die support; an injection molding machine, an air pressure edge trimmer, a stripper and a mold changing machine are respectively arranged around the electric cabinet.

Preferably, an injection head is arranged below the front end of the injection molding machine, an injection molding raw material box is arranged behind the injection molding machine, and the injection molding raw material box is connected with the injection head; the injection molding machine is characterized in that a groove is formed in the middle of the front side of the injection molding machine, a transmission gear is arranged in the groove, and the transmission gear is connected with an internal generator.

Preferably, an air pressure pipe is arranged below the front end of the air pressure edge trimming machine, and an injection molding raw material box is arranged behind the air pressure edge trimming machine and is connected with an air pressure edge trimming head; the middle part of the front side of the air pressure edge trimming machine is provided with a groove, a transmission gear is arranged in the groove, and the transmission gear is connected with an internal generator.

Preferably, a stripper sucking disc claw and a die changer sucking disc claw are arranged in front of the stripper and the die changer respectively, a groove is formed in the middle of the front side of the stripper and the middle of the front side of the die changer, a transmission gear is arranged in the groove and connected with an internal generator, and a cooling waste liquid recycling box and a cooling liquid box are arranged behind the stripper and the die changer respectively.

Preferably, the lower ends of the rotating shafts of the lower die are respectively and fixedly provided with a planetary gear, and the planetary gear is meshed with a threaded rotating shaft of a motor; the double-side gear ring structure is characterized in that double-side gear rings are arranged on the outer ring of the planetary gear, inner side teeth of the double-side gear rings are in meshed connection with the planetary gear through gears, and outer side teeth of the double-side gear rings are arranged in grooves in the middle of the injection molding machine, the air pressure trimming machine, the demolding machine and the mold changing machine and are in meshed connection with inner gears of the injection molding machine, the air pressure trimming machine, the demolding machine and the mold changing machine.

Preferably, an injection molding channel is formed in the injection molding head, a liquid blocking block is arranged below the injection molding head, a liquid blocking block spring is arranged above the liquid blocking block, and the liquid blocking block is connected with the liquid blocking plate spring through the liquid blocking block spring; liquid blocking plates are arranged on two sides of the liquid blocking block, through holes are formed in the liquid blocking plates close to the tail ends, liquid blocking plate springs are arranged at two ends of each liquid blocking plate respectively, and the liquid blocking plates are connected with the injection molding head through the liquid blocking plate springs.

Preferably, an air cavity is formed in the air pressure pipe, through holes are formed in two sides of the middle section of the air cavity, an air pressure valve is arranged in each through hole, an air blocking block spring is arranged below the air cavity, an air blocking block is fixed below the air blocking block spring, air transmission branches are formed in two sides of each air blocking block, and each air transmission branch is connected with the air cavity; the air cavity is sleeved with an air pressure trimming head, an air groove branch channel is formed in the air pressure trimming head, an impeller is arranged in the lower end of the air groove branch channel, a scraper is fixed below the impeller, and an opening of the air groove branch channel is communicated with an air pressure valve.

Preferably, the lower die support is convex, a circular groove is formed in the middle of a projection of the lower die support, and two small projections are arranged on the upper surfaces of two sides of the projection of the lower die support; the lower surface of the three-way pipe injection mold is provided with two grooves, the three-way pipe injection mold can be connected with a lower mold support in a positioning mode through the grooves, a plurality of mold positioning holes are formed in the three-way pipe injection mold, a forming cavity is formed in the middle of the three-way pipe injection mold, an upper mold is arranged in the upper portion of the forming cavity, an inclined mold is arranged in one side of the bifurcation of the forming cavity, the inclined mold is attached to the upper mold, and the lower end of the upper mold is attached to the lower mold support; the outer cooling liquid way that is equipped with of shaping chamber is used for storing the coolant liquid, go up the mould middle section horizontal direction and seted up the cavity, the cavity end is provided with gaseous check valve.

Advantageous effects

1. Through the specially arranged die movement mode, a plurality of devices can cooperate to jointly complete the work of injection molding of raw materials, air tightness detection, trimming of burrs, defective product judgment and the like, so that the work flow is accelerated, and the labor cost is reduced;

2. through the special arrangement of the die, the air tightness of the three-way pipe after injection molding can be detected without removing the die while the injection molding target is finished, and whether the next step of trimming the rough edge and continuing processing is needed or not is judged through the operation, so that the time and labor cost of manual detection are reduced, and the defective rate is reduced;

3. the injection molding head is specially arranged, so that injection molding operation can be carried out only when the injection molding head is in contact with and right opposite to a mold, waste of raw materials is reduced, meanwhile, the heat of the raw materials is utilized to ensure that extra heat preservation is not needed under the condition that injection molding is not carried out, and the injection molding machine does not need to be restarted every time, so that energy consumption is reduced;

4. the specially arranged air pressure trimming head enables the air tightness detection operation to be carried out only under the condition that the mechanism is in contact and the position is right, the condition of detection errors caused by faults of other parts is reduced, meanwhile, the surface trimming is carried out on the three-way pipe only under the condition that the air tightness of a detection target is good, otherwise, a signal is sent to carry out one-time recovery on the three-way pipe, the working efficiency is improved, and the defective rate of products is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of a front view of the present invention;

FIG. 3 is an enlarged schematic view at D of FIG. 2;

FIG. 4 is an enlarged schematic view at E in FIG. 2;

FIG. 5 is an enlarged schematic view at F of FIG. 2;

FIG. 6 is a cross-sectional view of the structure shown at G in FIG. 1;

in the figure, a motor cabinet 10, a double-side gear ring 11, an injection molding machine 12, an air pressure edge trimmer 13, a three-way pipe injection mold 14, a planetary gear 15, a stripper 16, a stripper suction disc claw 17, an air pressure detection channel 18, an injection molding head 19, an injection molding groove 21, a lower mold rotating shaft 22, a motor threaded rotating shaft 23, an upper mold 24, a mold positioning hole 25, an injection molding channel 27, a liquid blocking block 28, a liquid blocking plate spring 29, a liquid blocking plate 30, a liquid blocking block spring 31, a cooling liquid channel 32, a molding cavity 33, an air one-way valve 34, an air pressure valve 36, an air groove branch channel 37, an impeller 38, a scraper 39, a gas blocking block spring 40, an air delivery branch 41, an air blocking block 42, an air pressure pipe 43, a mold changer 44, a mold changer suction disc claw 45, an inclined mold 46, a lower mold support 47, a main tray 48, an injection molding box 50, a cooling liquid channel closed raw material block 51, a cooling liquid channel closed block spring 52, a cooling liquid branch channel 53, a cooling liquid injector 54, An air pressure tank 55, a cooling liquid tank 56, a cooling waste liquid recovery tank 57, an air pressure trimming head 59 and an air cavity 60.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

With reference to fig. 1 and 2, the high-quality PVC three-way pipe injection molding machine comprises a motor cabinet 10, and is characterized in that a motor thread rotating shaft 23 is arranged above the motor cabinet 10, a main tray 48 is sleeved outside the motor thread rotating shaft 23, four through holes are vertically arranged around the main tray 48, a lower mold rotating shaft 22 is arranged in each through hole, a lower mold support 47 is arranged above the lower mold rotating shaft 22, and a three-way pipe injection mold 14 is arranged above the lower mold support 47; an injection molding machine 12, an air pressure edge trimmer 13, a stripper 16 and a mold changer 44 are respectively arranged around the electric cabinet 10.

With further reference to fig. 1 and 2, an injection head 19 is disposed below the front end of the injection molding machine 12, an injection raw material tank 50 is disposed behind the injection molding machine 12, and the injection raw material tank 50 is connected to the injection head 19; a groove is formed in the middle of the front side of the injection molding machine 12, a transmission gear is arranged in the groove, and the transmission gear is connected with an internal generator.

Further referring to fig. 1, an air pressure pipe 43 is arranged below the front end of the air pressure edge trimmer 13, and an injection molding raw material box 50 is arranged behind the air pressure edge trimmer 13 and connected with an air pressure edge trimming head 59; a groove is formed in the middle of the front side of the pneumatic edge trimming machine 13, a transmission gear is arranged in the groove, and the transmission gear is connected with an internal generator.

Further referring to fig. 1, a stripper suction tray claw 17 and a mold changing suction tray claw 45 are respectively arranged in front of the stripper 16 and the mold changing machine 44, a groove is arranged in the middle of the front side of the stripper 16 and the mold changing machine 44, a transmission gear is arranged in the groove and is connected with an internal generator, and a cooling waste liquid recycling tank 57 and a cooling liquid tank 56 are respectively arranged behind the stripper 16 and the mold changing machine 44.

With further reference to fig. 2 and 4, the lower ends of the lower mold rotating shafts 22 are respectively and fixedly provided with planetary gears 15, and the motor thread rotating shafts 23 on the planetary gears 15 are in meshed connection; the outer ring of the planetary gear 15 is provided with a bilateral gear ring 11, teeth on the inner side of the bilateral gear ring 11 are in gear engagement connection with the planetary gear 15, and teeth on the outer side of the bilateral gear ring 11 are arranged in grooves in the middle of the injection molding machine 12, the pneumatic edge trimmer 13, the demolding machine 16 and the mold changing machine 44 and are in engagement connection with internal gears of the injection molding machine.

Further, with reference to fig. 1 and fig. 3, an injection molding channel 27 is formed inside the injection molding head 19, a liquid blocking block 28 is arranged below the injection molding head 19, a liquid blocking block spring 31 is arranged above the liquid blocking block 28, and the liquid blocking block 28 is connected with a liquid blocking plate spring 29 through the liquid blocking block spring 31; liquid blocking plates 30 are arranged on two sides of the liquid blocking block 28, through holes are formed in the positions, close to the tail ends, of the liquid blocking plates 30, liquid blocking plate springs 29 are arranged at two ends of each liquid blocking plate 30, and the liquid blocking plates 30 are connected with the injection molding head 19 through the liquid blocking plate springs 29.

Further referring to fig. 1 and fig. 6, an air cavity 60 is formed inside the air pressure pipe 43, through holes are formed in two sides of the middle section of the air cavity 60, an air pressure valve 36 is arranged inside the through holes, an air blocking block spring 40 is arranged below the air cavity 60, an air blocking block 42 is fixed below the air blocking block spring 40, air transmission branches 41 are formed on two sides of the air blocking block 42, and the air transmission branches 41 are connected with the air cavity 60; an air pressure trimming head 59 is sleeved outside the air cavity 60, an air groove branch channel 37 is formed in the air pressure trimming head 59, an impeller 38 is arranged in the lower end of the air groove branch channel 37, a scraper 39 is fixed below the impeller 38, and the opening of the air groove branch channel 37 is communicated with an air pressure valve 36.

Further, with reference to fig. 2, 4 and 5, the lower mold support 47 is convex, a circular groove is formed in the middle of the projection of the lower mold support 47, and two small projections are formed on the upper surfaces of two sides of the projection of the lower mold support 47; the lower surface of the three-way pipe injection mold 14 is provided with two grooves which can be connected with a lower mold support 47 in a positioning manner, a plurality of mold positioning holes 25 are formed in the three-way pipe injection mold 14, a forming cavity 33 is formed in the middle of the three-way pipe injection mold 14, an upper mold 24 is arranged in the upper portion of the forming cavity 33, an inclined mold 46 is arranged in the branched side of the forming cavity 33, the inclined mold 46 is attached to the upper mold 24, and the lower end of the upper mold 24 is attached to the lower mold support 47; the outer cooling liquid way 32 that is equipped with of shaping chamber 33 is used for storing the coolant liquid, the cavity has been seted up to last mould 24 middle section horizontal direction, the cavity end is provided with gaseous check valve 34.

Principle of operation

After the motor cabinet 10 is started, the motor threaded rotating shaft 23 is driven to rotate under the action of a motor inside the motor cabinet 10, meanwhile, the main tray 48 is driven to rotate due to the rotation of the motor threaded rotating shaft 23, the main tray 48 drives the four lower die holders 47 located on the periphery to rotate together due to the rotation of the motor threaded rotating shaft 23, the lower die holders 47 penetrate through the main tray 48, the planetary gears 15 fixed to the lower bottom surfaces of the lower die holders 47 are meshed with the motor threaded rotating shaft 23 through gears, and meanwhile, due to the special design of the lower die holders 47, the lower die holders 47 drive the tee pipe injection die 14 above the lower die holders 47 to rotate together while rotating around the motor threaded rotating shaft 23 so as to ensure that the cooling liquid injector 54 located on the upper surface of the tee pipe injection die 14 is in a fixed position when passing through the die changer 44 each time.

Since the rotation of the lower die holder 47 causes the double-sided ring gear 11 located outside the lower die holder 47 to start rotating, the rotation of the double-sided ring gear 11 realizes respective functions for four device functions located outside the double-sided ring gear 11.

When the tee pipe injection mold 14 above the lower mold support 47 passes through the mold changer 44, the corresponding mold changer chuck claws 45 are controlled by the mold changer 44 to press the cooling liquid channel closing block 51 on the upper part of the cooling liquid injector 54 on the upper surface of the tee pipe injection mold 14, so that the cooling liquid channel is opened and filled with cooling liquid for the next injection operation.

When the three-way pipe injection mold 14 continues to rotate and passes through the injection molding machine 12, the injection molding machine 12 controls the injection head 19 to descend and be attached to the three-way pipe injection mold 14, the liquid blocking block 28 is pressed into the injection head 19, so that the liquid blocking plates 30 positioned on two sides of the liquid blocking block 28 are extruded, the openings on two sides of the motor cabinet 10 are aligned to the injection molding channel 27, and the raw material positioned in the injection molding raw material box 50 is injected into the mold through the injection molding channel 27.

The three-way pipe injection mold 14 continuously rotates, the air pressure trimming head 59 below the air pressure trimming machine 13 is controlled to descend after passing through the air pressure trimming machine 13, when the air blocking block 42 in the air pressure trimming head 59 is aligned with the groove on the upper surface of the three-way pipe injection mold 14 and is pressed into the air pressure trimming head 59, the air pressure box 55 injects air tightness checking gas into the three-way pipe injection mold 14 through the air cavity 60, if the air tightness of the three-way pipe in the three-way pipe injection mold 14 is insufficient, the air pressure valve 36 in the air pressure pipe 43 is not opened and sends out signals which are not further processed but directly rotate to the front of the stripper 16 to be stripped and independently placed by the stripper 16, if the air tightness of the three-way pipe in the three-way pipe injection mold 14 is good, the air pressure valve 36 in the air pressure pipe 43 is opened and conveys the gas through the air groove branch pipe 37 to push the impeller 38 at the tail end of the air groove branch pipe 37 to rotate, and drives the scraper 39 connected with the impeller 38 to rotate to trim the overflow of the raw material on the upper surface of the formed three-way pipe .

After the air tightness inspection is finished, the three-way pipe injection mold 14 rotates to the front of the demolding machine 16, the demolding machine 16 is controlled by a computer to perform demolding and cooling waste liquid recycling through the demolding machine sucking disc claws 17.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.