阅读说明：本技术 一种吹瓶机封口、拉伸联动机构 (Sealing and stretching linkage mechanism of bottle blowing machine ) 是由 方恒 王远东 于 2018-07-09 设计创作，主要内容包括：本发明涉及到吹瓶机的封口、拉伸机构,具体涉及一种吹瓶机封口、拉伸联动机构。包括：联动块,所述联动块与拉伸杆固定连接,联动块在驱动装置的驱动作用下带动拉伸杆上下运动；偏转组件,所述偏转组件与封头组件固定连接,初始状态时,所述偏转组件向内倾斜抵靠在联动块的两侧,当联动块向下运动时,所述联动块向外推动偏转组件,偏转组件向外偏转并带动封头组件向下运动进行封口。还包括支架,所述联动块和所述偏转组件均设置在支架内。所述联动块为滑块,所述支架上设置有上下延伸的滑轨,所述滑块沿滑轨上下滑动,所述联动块的左右两端分别设置有开设有卡槽。解决了现有技术中的吹瓶机的拉伸与封口机构分别控制,精确度低的问题。(The invention relates to a sealing and stretching mechanism of a bottle blowing machine, in particular to a sealing and stretching linkage mechanism of the bottle blowing machine. The method comprises the following steps: the linkage block is fixedly connected with the stretching rod and drives the stretching rod to move up and down under the driving action of the driving device; the deflection assembly is fixedly connected with the end socket assembly, the deflection assembly is inclined inwards and abutted against two sides of the linkage block in an initial state, when the linkage block moves downwards, the linkage block pushes the deflection assembly outwards, and the deflection assembly deflects outwards and drives the end socket assembly to move downwards to seal the opening. The linkage block and the deflection assembly are arranged in the support. The linkage block is a sliding block, a sliding rail extending up and down is arranged on the support, the sliding block slides up and down along the sliding rail, and clamping grooves are formed in the left end and the right end of the linkage block respectively. The problem of the bottle blowing machine among the prior art tensile and seal the mechanism and control respectively, the accuracy is low is solved.)

1. The utility model provides a bottle blowing machine seals, tensile linkage mechanism which characterized in that includes:

the linkage block (1) is fixedly connected with the stretching rod (2), and the linkage block (1) drives the stretching rod (2) to move up and down under the driving action of the driving device (3);

the deflection assembly is fixedly connected with the end socket assembly (5), and in an initial state, the deflection assembly is inwards inclined to abut against two sides of the linkage block (1), when the linkage block (1) moves downwards, the linkage block (1) outwards pushes the deflection assembly, and the deflection assembly deflects outwards and drives the end socket assembly (5) to move downwards to seal.

2. The bottle blowing machine sealing and stretching linkage mechanism according to claim 1, further comprising a support (6), wherein the linkage block (1) and the deflection assembly are both disposed in the support (6).

3. The bottle blowing machine sealing and stretching linkage mechanism according to claim 2, wherein the linkage block (1) is a slide block, the support (6) is provided with a slide rail (61) extending up and down, the slide block slides up and down along the slide rail (61), and the left and right ends of the linkage block (1) are respectively provided with a slot (12).

4. A bottle blowing machine sealing and stretching linkage mechanism according to claim 3, characterized in that the outer surface of the linkage block (1) is provided with a guide wheel (11), and the guide wheel (11) rolls along the external guide rail (7).

5. The bottle blowing machine sealing and stretching linkage mechanism according to claim 2, wherein the deflection assembly comprises two deflection members (4), the two deflection members (4) are respectively located at two sides of the linkage block (1), the deflection member (4) comprises a rotating block (41) and a connecting rod (42) which are hinged to each other, the rotating block (41) is hinged to the support (6), one end of the rotating block (41) is hinged to one end of the connecting rod (42), and the other end of the connecting rod (42) is connected with the end enclosure assembly (5).

6. The bottle blowing machine sealing and stretching linkage mechanism according to claim 4, wherein the rotating block (41) is extended with at least two branches, the two branches both face the linkage block (1), the lowest branch is hinged with the connecting rod (42), and the other branches are provided with bearings which roll along the side of the linkage block (1) and are matched with the clamping grooves (12) on the linkage block (1).

7. The bottle blowing machine sealing and stretching linkage mechanism according to claim 4, wherein the connecting rod (42) is connected with the end enclosure assembly (5) through a connecting block (43), the connecting rod (42) is hinged with the connecting block (43), and the lower end of the connecting block (43) is fixedly connected with the end enclosure assembly (5).

8. The bottle blowing machine sealing and stretching linkage mechanism according to claim 7, wherein the upper end of the connecting block (43) is provided with a lower limiting block (431) for limiting the linkage block (1).

9. The bottle blowing machine sealing and stretching linkage mechanism according to claim 4, characterized in that the connecting rods (42) of the two groups of deflecting members (4) are relatively provided with a limiting block (421).

10. The bottle blowing machine sealing and stretching linkage mechanism as claimed in claim 1, wherein the lower end of the stretching rod (2) passes through the deflection assembly and the sealing head assembly (5) and extends into the bottle blank.

Technical Field

The invention relates to a sealing and stretching mechanism of a bottle blowing machine, in particular to a sealing and stretching linkage mechanism of the bottle blowing machine.

Background

When the bottle blowing machine blows a bottle, firstly, a bottle blank is heated to the temperature at which the bottle blank is easy to blow, then the bottle blank is conveyed to a mold by a manipulator, a bottle opening is sealed by a sealing cylinder, low-pressure primary blowing is carried out, the bottle blank is preformed into the approximate shape of the bottle, a stretching rod acts while the primary blowing is carried out, the bottle is ensured not to be eccentric and is longitudinally stretched, after the primary blowing is finished, the bottle after the primary blowing is blown by high-pressure secondary blowing and is attached to the mold to form a final bottle, then high-pressure gas in a bottle cavity is recycled, and finally, redundant gas is exhausted to the atmosphere through a silencer. The traditional sealing and stretching are controlled independently, and once a sealing electromagnetic valve fails, the sealing is abnormal, and other parts are damaged to cause shutdown.

Application No. CN201310483631.9 discloses a stretching and sealing mechanism of a bottle blowing machine, and specifically discloses: the bottle blowing machine comprises a stretching bracket, cam guide rails arranged on a main frame of the bottle blowing machine and guide wheels rolling between the cam guide rails, wherein the stretching bracket is provided with a bearing seat sleeved with a lead screw, the lead screw is connected with a driving motor for driving the lead screw to move, the stretching rod support is provided with a stretching rod, and the stretching rod support is provided with a lead screw nut which moves in a matched manner with the lead screw; the stretching support is also provided with a linear guide rail, the linear guide rail is provided with a linear bearing, a guide wheel seat provided with a guide wheel is arranged on the linear bearing and ascends and descends along the linear bearing, the guide wheel seat is provided with a hollow blowing pipe component for blowing air to the bottle blank, the lower end of the hollow blowing pipe component is connected with a sealing component for sealing the bottle opening, the upper end of the stretching rod is fixed on a stretching rod support, and the lower end of the stretching rod can penetrate through the hollow blowing pipe component and the sealing component and extend into the bottle blank. The stretching and sealing mechanism of the bottle blowing machine is driven by the mechanical driving method in the application, so that the action accuracy of high-speed stretching and sealing of the bottle blowing machine is improved, but the control of the stretching and sealing mechanism of the bottle blowing machine is still controlled separately, and once the bottle blowing machine is operated, the bottle blowing machine cannot be accurately matched with the stretching and sealing mechanism, so that the bottle blowing quality of the bottle blowing machine can be influenced.

Disclosure of Invention

The invention provides a sealing and stretching linkage mechanism of a bottle blowing machine, which solves the technical problems in the prior art that the stretching and sealing mechanisms of the bottle blowing machine are controlled respectively and the precision is low. The technical scheme of the invention is as follows:

a bottle blowing machine seals, tensile link gear includes: the linkage block is fixedly connected with the stretching rod and drives the stretching rod to move up and down under the driving action of the driving device; the deflection assembly is fixedly connected with the end socket assembly, the deflection assembly is inclined inwards and abutted against two sides of the linkage block in an initial state, when the linkage block moves downwards, the linkage block pushes the deflection assembly outwards, and the deflection assembly deflects outwards and drives the end socket assembly to move downwards to seal the opening. Through the linkage mechanism, the linkage block can push the deflection assembly to deflect while driving the stretching rod to move downwards, and the deflection assembly deflects outwards to drive the end socket assembly to move downwards for sealing, so that the simultaneous control of the movement of the end socket assembly and the stretching rod is realized, and the end socket assembly and the stretching rod are accurately matched in the working process and are low in control difficulty.

Further, still include the support, linkage piece and deflection assembly all set up in the support.

Further, the linkage block is a sliding block, a sliding rail extending up and down is arranged on the support, the sliding block slides up and down along the sliding rail, and clamping grooves are formed in the left end and the right end of the linkage block respectively.

Further, a guide wheel is arranged on the outer surface of the linkage block and rolls along the outer guide rail.

Furthermore, the deflection assembly comprises two deflection pieces, the two deflection pieces are respectively located on two sides of the linkage block, each deflection piece comprises a rotating block and a connecting rod, the rotating blocks are hinged to the support, one end of each rotating block is hinged to one end of the corresponding connecting rod, and the other end of each connecting rod is connected with the seal head assembly.

Furthermore, at least two branches extend from the rotating block, the two branches face the linkage block, the branch at the lowest position is hinged to the connecting rod, bearings are arranged on the other branches, and the bearings roll along the side face of the linkage block and are matched with the clamping grooves in the linkage block.

Further, the connecting rod is connected with the end enclosure assembly through a connecting block, the connecting rod is hinged to the connecting block, and the lower end of the connecting block is fixedly connected with the end enclosure assembly.

Furthermore, the upper end of the connecting block is provided with a lower limiting block for limiting the linkage block.

Furthermore, the connecting rods of the two deflection parts are relatively provided with a limiting block close to the connecting block.

Furthermore, the lower end of the stretching rod penetrates through the deflection assembly and the sealing head assembly and extends into the bottle embryo.

Based on the technical scheme, the invention can realize the following technical effects:

1. the bottle blowing machine sealing and stretching linkage mechanism realizes one-key control of two processes of sealing and stretching of the bottle blowing machine, and the linkage block is driven to move by the driving device, so that the stretching rod and the end socket assembly can be controlled to move simultaneously, the matching of the stretching rod and the end socket assembly is more accurate, and the matching difficulty is reduced; electrical equipment is effectively reduced, the air consumption of the equipment is reduced, the electrical control is simplified, and the production cost is reduced;

2. the sealing and stretching linkage mechanism of the bottle blowing machine adopts a mechanical linkage mechanism, has accurate and controllable motion stroke, low cost, durability, difficult damage and no pneumatic noise;

3. the sealing and stretching linkage mechanism of the bottle blowing machine adopts a mechanical linkage mechanism, so that the stability of the equipment is improved, the risk of damaging other parts is avoided, and the production efficiency is effectively improved.

4. The sealing and stretching linkage mechanism of the bottle blowing machine adopts the linkage of sealing and stretching in the mechanical linkage mechanism, thereby reducing parts, electromagnetic valves and equipment cost.

Drawings

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

FIG. 2 is a front view of the linkage mechanism of the present invention;

FIG. 3 is a schematic structural diagram of a linkage block of the present invention;

FIG. 4 is a schematic structural view of a connecting rod of the present invention;

FIG. 5 is a schematic diagram of the stretching mechanism with linkage block of the present invention;

FIG. 6 is a schematic view of the linkage mechanism of the present invention in operation;

in the figure: 1-a linkage block; 11-a guide wheel; 12-a card slot; 2-a stretch rod; 3-a drive device; 4-a deflection member; 41-turning block; 42-connecting rod; 421-a limiting block; 43-connecting block; 431-a lower limit block; 5-a seal head component; 51-sealing cylinder; 52-end enclosure; 6-a scaffold; 61-a slide rail; 62-a lug; 7-guide rail.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-5, the embodiment provides a sealing and stretching linkage mechanism of a bottle blowing machine, the linkage mechanism is arranged between the sealing mechanism and the stretching mechanism, and is matched with the sealing mechanism and the stretching mechanism to realize linkage work of the sealing mechanism and the stretching mechanism. The linkage mechanism comprises a linkage block 1 and a deflection assembly, the linkage block 1 is fixedly connected with the stretching rod 2, and the linkage block 1 drives the stretching rod 1 to move up and down under the driving action of the driving device 3; the deflection assembly is fixedly connected with the end socket assembly 5, the deflection assembly is leaned inwards to abut against two sides of the linkage block 1 in an initial state, when the linkage block 1 moves downwards, the linkage block 1 pushes the deflection assembly outwards, and the deflection assembly deflects outwards and drives the end socket assembly 5 to move downwards to seal.

The linkage block 1 and the deflection assembly are arranged on the support 6, the driving device 3 is arranged above the support 6, the driving end of the driving device 3 is connected with the upper end of the linkage block 1, the lower end of the linkage block 1 is fixedly connected with the stretching rod 2, and the linkage block 1 drives the stretching rod 2 to move up and down under the action of the driving device 3. Preferably, the linkage block 1 is a slide block, the support 6 is provided with a slide rail 61 along the motion track of the linkage block 1, and the slide block moves up and down on the slide rail 61 and drives the stretching rod 2 to move up and down. Preferably, the driving means 3 is a pneumatic or hydraulic cylinder. In order to control the movement position of the stretching rod 2, a guide wheel 11 is arranged on the outer surface of the linkage block 1, and the guide wheel 11 extends out of the surface of the linkage block 1 and is matched with an external guide rail 7 to control the position of the stretching rod 2. In the actual stretching process, strict requirements are imposed on the motion track of the stretching rod, and the stretching rod has different lengths extending into the bottle blank at each stage, so that the guide wheel 11 moves along the guide rail 7, the guide rail 7 limits the height of the corresponding position of the guide wheel 11, and the height of the stretching rod 2 at the corresponding position is limited. Preferably, the guide rail 7 is a bearing, and specifically, a screw rod is vertically arranged on the outer surface of the linkage block 1, and the bearing, more preferably a rolling bearing, is sleeved outside the screw rod.

The linkage block 1 not only plays a role in driving the stretching rod 2 to move up and down, but also needs to play a role in limiting the pushing of the deflection assembly. The left end and the right end of the linkage block 1 are respectively provided with a clamping groove 12. The card slot 12 is used to limit the deflection assembly. Preferably, the left end and the right end of the linkage block 1 are respectively provided with at least 1 clamping groove 12.

As shown in fig. 3, the linkage block 1 is a layered structure, the width of the inner layer of the linkage block 1 is greater than that of the outer layer, the guide wheel 11 is arranged on the outer surface of the outer layer, and the clamping grooves 12 are arranged at the left end and the right end of the outer layer, so that when the linkage block 1 is positioned at the height of the rotating block 41 of the deflection assembly, the outer layer side surface of the linkage block 1 is matched with the bearing on the rotating block 41 to realize the deflection effect that the linkage block 1 drives the rotating block 41; when the linkage block 1 moves downwards to the height of the connecting rod 42, the left end and the right end of the inner layer of the linkage block 1 abut against the limiting block 421 on the connecting rod 42, and the limiting effect on the connecting rod 42 and the rotating block 41 is achieved.

The deflection assembly is arranged on the support 6 and drives the end socket assembly 5 to move towards the bottle blank under the triggering action of the linkage block 1, so that sealing is realized. The deflection assembly comprises two deflection parts 4, and the two deflection parts 4 are symmetrically arranged on two sides of the linkage block 1. The deflecting piece 4 comprises a rotating block 41 and a connecting rod 42, the rotating block 41 is hinged on the bracket 6, the lower end of the rotating block 41 is hinged with one end of the connecting rod 42, and the other end of the connecting rod 42 is connected with the end enclosure assembly 5. Further, a lug 62 extends on the bracket 6, and the rotating block 41 is hinged with the lug 62. Furthermore, the middle part of the rotating block 41 is hinged with the lug 62, one side of the rotating block 41 facing the linkage block 1 extends to form at least two branches, the lowest branch is hinged with the connecting rod 42, and the other branches are provided with bearings, and the bearings on the branches are matched with the clamping grooves 12 on the linkage block 1. Preferably, 3 branches are arranged on the rotating block 41, bearings are arranged on the upper branch and the middle branch, and the bearings on the middle branch are positioned in the clamping grooves 12, so that the stretching rod 2 is positioned at the highest point, and the resetting is completed. In order to ensure that the end socket assembly 5 maintains a sealed state during the downward sliding of the linkage block 1, a limit block 421 is provided on the push rod 42, preferably, a limit block 421 is provided on the inner side of the push rod 42, and the limit block 421 is provided on the inner surface of the push rod 42 facing the bracket 6 and extends toward the opposite push rod 42. When the linkage block 1 moves downwards under the driving action of the driving device 3, the linkage block 1 drives the lower end of the rotation block 41 to swing outwards, the rotation block 41 drives the connecting rod 42 to swing outwards until the lower end of the rotation block 41 and the connecting rod 42 are positioned on the same straight line, according to the three-edge attribute of a triangle (the sum of the lengths of any two edges is greater than the third edge), it can be known that the lower end of the connecting rod 42 drives the end enclosure assembly 5 to move downwards, the bottle blank is sealed, the linkage block 41 continues to move downwards and the two sides of the linkage block 41 abut against the limiting block 421, the rotation block 41 and the push rod 42 are limited, and the end enclosure assembly 5 is ensured to be always in a sealed state.

Further, the connecting rod 42 is connected to the head assembly 5 through a connecting block 43. Specifically, the lower end of the connecting rod 42 is hinged with the connecting block 43, and the end enclosure assembly 5 is fixedly connected below the connecting block 43. Further, in order to limit the movement range of the linkage block 1, a lower limit block 431 is provided on the upper surface of the connection block 43 to limit the lowest movement position of the linkage block 1.

The end enclosure assembly 5 is used for sealing the bottle blank, the end enclosure assembly 5 comprises a sealing cylinder 51 and an end enclosure 52, the sealing cylinder 51 comprises a cylinder body and a piston rod arranged in the cylinder body, the upper end of the piston rod is fixedly connected with the connecting block 43, and the lower end of the piston rod is connected with the end enclosure 52. Preferably, the piston rod is a hollow rod body, a channel is arranged in the piston rod, and the lower end of the stretching rod 2 can penetrate through the deflection assembly and the sealing head assembly 5 to stretch into the bottle blank so as to stretch the bottle blank. Specifically, the lower end of the stretching rod 2 extends into the preform through the lower stopper 431, the connecting block 43, the piston rod and the end cap 52, as shown in fig. 5.

Based on the structure, in the working process of the sealing and stretching mechanism comprising the linkage mechanism of the invention, the sealing and stretching mechanism is positioned on the turntable, the turntable drives the sealing and stretching mechanism to do circular motion, the driving device 3 drives the linkage block 1 to move downwards, the guide wheel 11 on the linkage block 1 rolls along the guide rail 7 to limit the height of the linkage block 1, the linkage block 1 drives the stretching rod 2 to move downwards, the linkage block 1 pushes the rotating block 41 and the connecting rod 42 to swing outwards, the lower end of the rotating block 41 and the connecting rod 42 are positioned on the same straight line, the lower end of the connecting rod 42 pushes the end enclosure assembly 5 to move downwards through the connecting block 43 to contact with the bottle body, so that sealing is realized, when the linkage block 1 moves downwards to a position between the two connecting rods 42, the two ends of the linkage block 1 abut against the limiting blocks 321 of the connecting rods 42, and the lower end of the rotating block 41 and the connecting rods 42 are ensured to be positioned on the same straight line until the linkage block 1 drives the stretching rod 2 to complete the stretching effect on the bottle blank according to a specified path. After the stretching action is finished, the linkage block 1 rises along a given route under the action of the guide rail 7 until the bearing on the middle branch of the rotating block 41 is positioned in the clamping groove 12 of the linkage block 1, and the resetting is finished.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.