CN219485919U

CN219485919U - Plastic auxiliary device that punches a hole

Info

Publication number: CN219485919U
Application number: CN202320435480.9U
Authority: CN
Inventors: 虞慧; 胡美佳; 王四强
Original assignee: Hangzhou Qiushi Xingyuan Plastic Co ltd
Current assignee: Hangzhou Qiushi Xingyuan Plastic Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-08-08
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses a plastic punching auxiliary device, which comprises: the workbench is arranged on the conveying mechanism at the top of the workbench, the conveying mechanism is arranged on the rear of the top of the workbench, the conveying mechanism is fixedly connected to the U-shaped plate at the left side of the top of the workbench, the cleaning mechanism is arranged on the left side of the workbench, the hydraulic cylinder is fixedly arranged on the middle part of the top of the inner side of the U-shaped plate, the mounting plate is fixedly connected to the telescopic end of the hydraulic cylinder, the sliding blocks are fixedly connected to the two ends of the mounting plate, the sliding grooves are formed in the two ends of the inner side of the U-shaped plate, the punching heads are detachably arranged on the bottoms of the mounting plate, the two sliding blocks are in sliding connection with the bottoms of the two sliding blocks, the pipe clamped by the conveying mechanism through the operation of the first motor, and the pipe can be continuously conveyed to the lower side of the punching heads to process longer plastic parts without manual conveying, so that the manpower is saved, and the processing efficiency is improved.

Description

Plastic auxiliary device that punches a hole

Technical Field

The utility model relates to the technical field of plastic punching processing, in particular to a plastic punching auxiliary device.

Background

The plastic is a high molecular compound polymerized by polyaddition or polycondensation reaction with monomer as raw material, and has medium deformation resistance, which is between fiber and rubber, and consists of synthetic resin and additives such as filler, plasticizer, stabilizer, lubricant, pigment, etc., and in the process of producing and processing plastic pipe, the surface of the plastic pipe needs to be perforated, and the existing perforation mode is mostly to use a punching machine for punching.

The prior art can refer to the publication number: the utility model discloses a punching device for plastic packaging, which is characterized in that a threaded rod is rotated to drive a threaded sleeve, a fixed rod I and a movable frame to move left and right through the arrangement of a moving mechanism, a lug slides in an inner cavity of the movable frame to further push the lug to move left and right, a sliding block slides in the inner cavity of a sliding groove through the arrangement of a limiting mechanism, the movable frame is limited, the stability of the movable frame during left and right movement is improved, and a movable plate moves up and down to drive the fixed rod II and a pressing plate to move up and down through the arrangement of a lifting mechanism, so that the pressing plate fixes and releases a plastic body.

The above-mentioned punching device has solved fixed problem when using, but still has following problem when using, firstly, this equipment is when using, can not carry out punching processing with longer plastics tubular product, generally need the manual hand plastics tubular product, constantly pay-off to punching head, the operation is very inconvenient, machining efficiency is low, secondly, when punching, generally need the manual mark on plastics tubular product, when the mark of marking is carried to punching head below, when carrying out punching processing, the result of use is not good, thirdly, the dust of being hoarded on the plastics tubular product after punching is inconvenient in time handled, influence subsequent tubular product processing, consequently, the person of skill in the art provides a plastics auxiliary device that punches a hole, in order to solve the problem that the above-mentioned background art presented.

Disclosure of Invention

The utility model aims to provide a plastic punching auxiliary device, which aims to solve the problems that the prior device proposed in the background art cannot carry out punching treatment on long plastic pipes, the plastic pipes are usually manually held, the plastic pipes are continuously fed to a punching head, the operation is very inconvenient, the processing efficiency is low, marks are generally manually marked on the plastic pipes during punching, and when the marked marks are conveyed to the lower part of the punching head, the punching treatment is carried out, the using effect is poor, and dust accumulated on the punched plastic pipes is inconvenient to timely treat, and the subsequent pipe processing is influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a plastic punch aid comprising:

the device comprises a workbench, a conveying mechanism arranged at the top of the workbench, an auxiliary mechanism arranged at the rear of the top end of the workbench, a U-shaped plate fixedly connected to the left side of the top end of the workbench, a cleaning mechanism arranged at the left side of the workbench, a hydraulic cylinder fixedly arranged at the middle part of the top end of the inner side of the U-shaped plate, a mounting plate fixedly connected to the telescopic end of the hydraulic cylinder, sliding blocks fixedly connected to the two ends of the mounting plate, sliding grooves formed in the two end faces of the inner side of the U-shaped plate, punching heads detachably arranged at the bottom end of the mounting plate, and sliding connection between the outer parts of the two sliding blocks and the inner parts of the two sliding grooves;

the conveying mechanism comprises: the device comprises two openings arranged at the top end of a workbench, rear plates fixedly connected to two sides at the rear end of the bottom end of the workbench, screw rods connected to the two rear plates through bearings in a rotating mode, a first motor fixedly installed on the right side of the side portion of the rear plate, an output end of the first motor and the screw rods are fixedly connected with the screw rods, threads of the first motor are connected to rear blocks outside the screw rods, the connecting rods are fixedly connected to the front ends of the rear blocks, front blocks at the front ends of the connecting rods are fixedly connected to the front blocks, guide posts sleeved in the front blocks are fixedly connected to the front plates at the two ends of the guide posts, the two front plates are fixedly connected with the bottom end of the workbench, the connecting blocks are fixedly connected to the top ends of the rear blocks and the front blocks respectively, the two connecting blocks penetrate through the inner sides of the two openings and are fixedly connected with the bottom end of a U-shaped seat, and two groups of electric pushing rods are fixedly connected to the two groups of end walls of the inner side walls of the U-shaped seat, and clamping plates are fixedly connected to the telescopic ends of the electric pushing rods.

As still further aspects of the utility model: the screw hole matched with the outer surface of the screw rod is formed in the rear block, the through holes matched with the outer sizes of the guide posts are formed in the front block, and the outer sizes of the two connecting blocks are matched with the inner sides of the two openings.

As still further aspects of the utility model: the auxiliary mechanism comprises: the fixed plate of fixed connection in workstation top rear, set up in a set of tongue of fixed plate front end, set up in a set of inside lug of tongue, fixed connection in a set of handle on lug top, fixed connection in the framework of U-shaped seat rear end below, the opening has been seted up at its framework rear, fixed connection in the push switch of the inside front end of framework, fixed connection in the spring of push switch rear end, its spring one end fixedly connected with movable plate, fixed connection in the guide block of movable plate both sides, set up in the guide way of the inside both sides wall of framework, fixed connection in triangular block of movable plate rear end.

As still further aspects of the utility model: the outer sizes of the protruding blocks are matched with the inner sizes of the protruding grooves, and the front ends of the protruding blocks protrude to the front end of the fixing plate.

As still further aspects of the utility model: the push switch is electrically connected with the hydraulic cylinder, and the outer parts of the two guide blocks are in sliding connection with the inner parts of the two guide grooves.

As still further aspects of the utility model: the cleaning mechanism includes: the utility model provides a fixed connection in the left backup pad of U template, through the bearing rotate connect in last worm wheel of backup pad bottom, fixed connection in go up the clean brush of worm wheel bottom, fixed connection in the outside left first gear of lead screw, the meshing connect in the second gear at first gear rear, through the bearing rotate connect in the fixed block of second gear lateral part, its fixed block and the bottom fixed connection of workstation, fixed connection in the left lower worm of second gear, its lower worm one end top meshing is connected with worm wheel down, fixed connection in the spliced pole of worm wheel front end down, fixed connection in the outside runner down of spliced pole, its runner front end is connected with the connecting plate through the bearing rotation, and connecting plate and workstation left part fixed connection to constitute transmission connection down between runner and the runner, fixed connection in the last worm of going up the runner front end is connected with the connecting seat through the bearing rotation, and connecting seat and backup pad bottom fixed connection.

As still further aspects of the utility model: the upper worm is connected with the upper worm wheel in a meshed manner.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the plastic pipe is placed on the inner side of the U-shaped seat on the workbench through the conveying mechanism, the two clamping plates clamp and fix the pipe through the expansion and contraction of the two groups of electric push rods, and then the clamped pipe can be continuously conveyed to the lower part of the punching head through the operation of the first motor, so that a longer plastic part can be processed, manual conveying is not needed, the labor is saved, and the processing efficiency is improved.

2. According to the utility model, the auxiliary mechanism is arranged, the U-shaped seat is continuously moved to the left side when plastic parts are conveyed, the convex blocks are placed into the convex grooves according to the required punching intervals, the triangular blocks are stressed to move into the frame body when the triangular blocks contact the convex blocks along with the movement of the U-shaped seat, the springs are stressed to compress, so that the pressing switch is pressed, the hydraulic cylinders are controlled to operate, the hydraulic cylinders drive the punching heads to move downwards, the pipe can be punched, marks are not required to be marked on the pipe by workers, and the pipe punching machine has the advantages of convenience, good effect and strong practicability.

3. According to the utility model, the cleaning mechanism is arranged, the first gear drives the second gear to rotate while the screw rod rotates, so that the lower worm drives the lower worm wheel to rotate, and the upper worm drives the upper worm wheel to rotate through the transmission of the belt, so that the cleaning brush rotates, dust on a plastic part can be cleaned, the subsequent treatment of the plastic part is facilitated, manual treatment is not needed, and the convenience is good.

Drawings

Fig. 1 is a schematic structural view of a plastic punching auxiliary device.

Fig. 2 is a schematic view of the external structure of a plastic punching auxiliary device.

Fig. 3 is a schematic structural view of a capping mechanism in the plastic punching auxiliary device.

Fig. 4 is an enlarged schematic view of a part a of the plastic punching auxiliary device.

Fig. 5 is a schematic structural view of a pull-back member in a plastic punching auxiliary device.

Fig. 6 is a schematic structural view of a pull-back member in the plastic punching auxiliary device.

Fig. 7 is a schematic structural view of a pull-back member in a plastic punching auxiliary device.

In the figure: 1. a work table; 2. a conveying mechanism; 201. an opening; 202. a rear plate; 203. a screw rod; 204. a first motor; 205. a rear block; 206. a connecting rod; 207. a front block; 208. a guide post; 209. a front plate; 210. a connecting block; 211. a U-shaped seat; 212. an electric push rod; 213. a clamping plate; 3. an auxiliary mechanism; 301. a fixing plate; 302. a convex groove; 303. a bump; 304. a handle; 305. a frame; 306. pressing the switch; 307. a spring; 308. a moving plate; 309. a guide block; 310. a guide groove; 311. triangular blocks; 4. a U-shaped plate; 5. a cleaning mechanism; 501. a support plate; 502. a worm wheel is arranged; 503. cleaning a brush; 504. a first gear; 505. a second gear; 506. a fixed block; 507. a lower worm; 508. a lower worm wheel; 509. rotating the column; 510. a lower rotating wheel; 511. a connecting plate; 512. a belt; 513. an upper rotating wheel; 514. a worm is arranged; 515. a connecting seat; 6. a hydraulic cylinder; 7. a mounting plate; 8. a slide block; 9. a chute; 10. and (5) punching heads.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 7, an embodiment of the present utility model provides an auxiliary device for punching plastic, including:

the automatic cleaning device comprises a workbench 1, a conveying mechanism 2 arranged at the top of the workbench 1, an auxiliary mechanism 3 arranged at the rear of the top end of the workbench 1, a U-shaped plate 4 fixedly connected to the left side of the top end of the workbench 1, a cleaning mechanism 5 arranged at the left side of the workbench 1, a hydraulic cylinder 6 fixedly arranged in the middle of the top end of the inner side of the U-shaped plate 4, an installation plate 7 fixedly connected to the telescopic end of the hydraulic cylinder 6, sliding blocks 8 fixedly connected to the two ends of the installation plate 7, sliding grooves 9 arranged on the two end surfaces of the inner side of the U-shaped plate 4, a punching head 10 detachably arranged at the bottom end of the installation plate 7, and sliding connection between the outer parts of the two sliding blocks 8 and the inner parts of the two sliding grooves 9;

the conveying mechanism 2 that sets up is convenient for carry the working of plastics and punches, has saved the manpower, and the complementary unit 3 that sets up can be according to the interval adjustment processing that punches, and the clean mechanism 5 that sets up is used for cleaning the article surface after punching, and when punching, the tensile removal of pneumatic cylinder 6 makes its mounting panel 7 move down, and two sliders 8 all slide in two spout 9 inside simultaneously, and then makes punching head 10 firm move down and punch the processing.

The conveying mechanism 2 includes: the two opening 201 arranged at the top end of the workbench 1, the rear plates 202 fixedly connected to the two sides of the rear end of the workbench 1 are rotatably connected to the screw rods 203 between the two rear plates 202 through bearings, the first motor 204 fixedly arranged on the side part of the right rear plate 202, the output end of the first motor 204 is fixedly connected with the screw rods 203, the rear block 205 which is in threaded connection with the outside of the screw rods 203, the connecting rod 206 fixedly connected to the front end of the rear block 205, the front block 207 fixedly connected to the front end of the connecting rod 206, the guide column 208 sleeved in the front block 207, the front plates 209 fixedly connected to the two ends of the guide column 208, the connecting blocks 210 respectively fixedly connected to the rear block 205 and the top end of the front block 207, the two connecting blocks 210 respectively penetrate through the inner sides of the two opening 201 and are fixedly connected with the bottom end of the U-shaped seat 211, the two groups of electric push rods 212 which are fixedly connected with the inner side walls of the U-shaped seat 211, and the clamping plates 213 fixedly connected to the telescopic ends of the two groups of electric push rods 212.

The rear block 205 is provided with a threaded hole matched with the outer surface of the screw 203, the front block 207 is provided with a through hole matched with the outer size of the guide post 208, and the outer sizes of the two connecting blocks 210 are matched with the inner sides of the two openings 201.

The plastic pipe is placed on the inner side of the U-shaped seat 211 on the workbench 1, two groups of electric push rods 212 are started, the two groups of electric push rods 212 stretch to drive the two clamping plates 213 to clamp and fix the pipe, then the first motor 204 is started, the first motor 204 drives the screw rod 203 to rotate positively, at the moment, the rear block 205 moves left outside the screw rod 203 and the front block 207 moves left outside the guide column 208, and the two connecting blocks 210 move left inside the two openings 201, so that the U-shaped seat 211 moves left, the clamped pipe can be continuously conveyed to the lower part of the punching head 10, and long plastic pieces are convenient to convey.

The assist mechanism 3 includes: the fixing plate 301 is fixedly connected to the rear of the top end of the workbench 1, the group of convex grooves 302 are formed in the front end of the fixing plate 301, the convex blocks 303 are arranged in the group of convex grooves 302, the handles 304 are fixedly connected to the top ends of the group of convex blocks 303, the frame 305 is fixedly connected to the lower portion of the rear end of the U-shaped seat 211, the through holes are formed in the rear of the frame 305, the pressing switch 306 is fixedly connected to the front end of the interior of the frame 305, the spring 307 is fixedly connected to the rear end of the pressing switch 306, one end of the spring 307 is fixedly connected with the movable plate 308, the guide blocks 309 are fixedly connected to two sides of the movable plate 308, the guide grooves 310 are formed in two side walls of the interior of the frame 305, and the triangular blocks 311 are fixedly connected to the rear end of the movable plate 308.

The outer dimensions of the set of protruding blocks 303 are matched with the inner dimensions of the set of protruding grooves 302, and the front ends of the set of protruding blocks 303 protrude to the front end of the fixing plate 301.

The push switch 306 is electrically connected with the hydraulic cylinder 6, and the outer parts of the two guide blocks 309 are in sliding connection with the inner parts of the two guide grooves 310.

The cleaning mechanism 5 includes: the cleaning brush comprises a supporting plate 501 fixedly connected to the left side of a U-shaped plate 4, an upper worm gear 502 fixedly connected to the bottom end of the supporting plate 501 through a bearing, a cleaning brush 503 fixedly connected to the bottom end of the upper worm gear 502, a first gear 504 fixedly connected to the left side of the outside of a screw 203, a second gear 505 meshed and connected to the rear of the first gear 504, a fixed block 506 fixedly connected to the side of the second gear 505 through a bearing, a fixed block 506 fixedly connected to the bottom end of a workbench 1, a lower worm 507 fixedly connected to the left side of the second gear 505, a lower worm 508 meshed and connected to the top of one end of the lower worm 507, a rotating column 509 fixedly connected to the front end of the lower worm 508, a lower rotating wheel 510 fixedly connected to the outside of the rotating column 509, a connecting plate 511 connected to the front end of the lower rotating wheel 510 through a bearing, and fixedly connected to the left side of the workbench 1, and the lower rotating wheel 510 forming a transmission connection 515 between the belt 512 and the upper rotating wheel 513, an upper worm 514 fixedly connected to the front end of the upper rotating wheel 513 being rotatably connected to a connecting seat 515 through a bearing, and the connecting seat 515 fixedly connected to the bottom end of the supporting plate 501.

The upper worm 514 is in meshed connection with the upper worm gear 502.

The two clamping plates 213 are stretched and driven by the two groups of electric push rods 212 to clamp and fix the pipe, then the first motor 204 drives the screw 203 to rotate forward, the U-shaped seat 211 can be moved left, the longer plastic piece can be conveyed, then each protruding block 303 is placed into the protruding groove 302 according to the required punching interval, along with the continuous leftward movement of the U-shaped seat 211, when the triangular block 311 contacts each protruding block 303, the pressing switch 306 is pressed, the hydraulic cylinder 6 is controlled to operate, the punching head 10 is enabled to stably move downwards for punching, the screw 203 rotates, the first gear 504 drives the second gear 505 to rotate, the lower worm 507 drives the lower worm wheel 508 to rotate, the lower runner 510 rotates along with the lower worm wheel 508, the upper worm wheel 513 rotates through the transmission of the belt 512, the upper worm wheel 514 drives the upper worm wheel 502 to rotate, and the cleaning brush 503 rotates to clean dust on the plastic piece.

The working principle of the utility model is as follows:

when the utility model is used, firstly, plastic pipes are placed on the inner side of the U-shaped seat 211 on the workbench 1, two groups of electric push rods 212 are started, the two groups of electric push rods 212 stretch to drive the two clamping plates 213 to clamp and fix the pipes, then the first motor 204 is started, the first motor 204 drives the screw rod 203 to rotate positively, at the moment, the rear block 205 moves left outside the screw rod 203 and the front block 207 moves left outside the guide post 208, and the two connecting blocks 210 move left inside the two openings 201, so that the U-shaped seat 211 moves left, the clamped pipes can be continuously conveyed below the punching head 10, longer plastic parts are conveniently conveyed, then each lug 303 is placed into the convex groove 302 according to the required punching interval, as the U-shaped seat 211 moves left continuously, when the triangular block 311 contacts each lug 303, the triangular block 311 is forced to move into the frame 305, the two guide blocks 309 slide in the two guide grooves 310 to play a role in guiding, the spring 307 is stressed and compressed to enable the guide blocks to press the push switch 306, the hydraulic cylinder 6 is controlled to operate, the mounting plate 7 of the hydraulic cylinder 6 is pulled to move downwards, meanwhile, the two sliding blocks 8 slide downwards in the two sliding grooves 9, the punching head 10 is enabled to stably move downwards to punch holes, staff is not required to mark marks on a pipe, punching is convenient, the first gear 504 drives the second gear 505 to rotate while the screw 203 rotates, the lower worm 507 drives the lower worm wheel 508 to rotate, the lower rotating wheel 510 rotates along with the lower worm wheel, the upper rotating wheel 513 rotates through transmission of the belt 512, the upper worm 514 drives the upper worm wheel 502 to rotate, the cleaning brush 503 rotates, dust on the plastic piece can be cleaned, and subsequent processing of the plastic piece is facilitated.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A plastic punch aid, comprising:

the automatic punching device comprises a workbench (1), a conveying mechanism (2) arranged at the top of the workbench (1), an auxiliary mechanism (3) arranged at the rear of the top end of the workbench (1), a U-shaped plate (4) fixedly connected to the left side of the top end of the workbench (1), a cleaning mechanism (5) arranged at the left side of the workbench (1), a hydraulic cylinder (6) fixedly arranged at the middle part of the top end of the inner side of the U-shaped plate (4), a mounting plate (7) fixedly connected to the telescopic end of the hydraulic cylinder (6), sliding blocks (8) fixedly connected to the two ends of the mounting plate (7), sliding grooves (9) formed in the two end faces of the inner side of the U-shaped plate (4), and punching heads (10) detachably arranged at the bottom end of the mounting plate (7), wherein the outer parts of the two sliding blocks (8) are in sliding connection with the inner parts of the two sliding grooves (9);

the conveying mechanism (2) comprises: two openings (201) on top of workbench (1), fixed connection in back plate (202) of workbench (1) bottom rear both sides, through the bearing rotate connect in two lead screw (203) between back plate (202), fixed mounting in the right side first motor (204) of back plate (202) lateral part, its output and lead screw (203) fixed connection of first motor (204), threaded connection in outside back piece (205) of lead screw (203), fixed connection in connecting rod (206) of back piece (205) front end, fixed connection in anterior piece (207) of connecting rod (206) front end, the cover is located guide post (208) of anterior piece (207) inside, fixed connection in anterior plate (209) at guide post (208) both ends, its two anterior plate (209) all with the bottom fixed connection of workbench (1), respectively fixed connection in connecting block (210) on back piece (205) and anterior piece (207) top, and two inboard connecting blocks (210) all run through to two openings and two U-shaped base (212) are fixed in two end wall electrical connection in two push rod groups (212).

2. A plastic punching auxiliary device according to claim 1, characterized in that the rear block (205) is provided with a threaded hole matched with the outer surface of the screw rod (203), the front block (207) is provided with a through hole matched with the outer size of the guide post (208), and the outer sizes of the two connecting blocks (210) are matched with the inner sides of the two openings (201).

3. A plastic punching aid as in claim 1, characterized in that the aid (3) comprises: the fixing plate is fixedly connected to the fixing plate (301) at the rear of the top end of the workbench (1), a group of convex grooves (302) are formed in the front end of the fixing plate (301), a group of convex blocks (303) are arranged in the convex grooves (302), a group of handles (304) are fixedly connected to the top ends of the convex blocks (303), a frame body (305) is fixedly connected to the lower portion of the rear end of the U-shaped seat (211), a through hole is formed in the rear of the frame body (305), a pressing switch (306) is fixedly connected to the front end of the inside of the frame body (305), a spring (307) is fixedly connected to the rear end of the pressing switch (306), a movable plate (308) is fixedly connected to one end of the spring (307), guide blocks (309) are arranged on two sides of the movable plate (308), guide grooves (310) are formed in two side walls of the inside of the frame body (305), and triangular blocks (311) are fixedly connected to the rear end of the movable plate (308).

4. A plastic punching auxiliary device according to claim 3, characterized in that the outer dimensions of a set of said projections (303) are matched with the inner dimensions of a set of recesses (302), and the front ends of a set of said projections (303) are protruded to the front end of the fixing plate (301).

5. A plastic punching auxiliary device according to claim 3, characterized in that the push switch (306) is electrically connected to the hydraulic cylinder (6), and the outer parts of the two guide blocks (309) are slidably connected to the inner parts of the two guide grooves (310).

6. A plastic punching aid as claimed in claim 1, characterized in that the cleaning mechanism (5) comprises: the cleaning brush comprises a supporting plate (501) fixedly connected to the left side of a U-shaped plate (4), an upper worm wheel (502) fixedly connected to the bottom end of the supporting plate (501) through a bearing, a cleaning brush (503) fixedly connected to the bottom end of the upper worm wheel (502), a first gear (504) fixedly connected to the left side outside the screw rod (203), a second gear (505) meshed with the rear of the first gear (504), a fixing block (506) rotatably connected to the side part of the second gear (505) through a bearing, a lower worm (507) fixedly connected to the left side of the second gear (505) through a bearing, a rotating post (509) meshed with the top of one end of the lower worm wheel (507), a lower rotating wheel (510) fixedly connected to the front end of the lower worm wheel (508), a connecting plate (511) rotatably connected to the front end of the lower rotating wheel (510) through a bearing, a connecting plate (511) fixedly connected to the left side part of the workbench (1) through a bearing, a lower rotating wheel (510) fixedly connected to the upper rotating wheel (513) through a bearing, and a front rotating seat (514) fixedly connected to the upper rotating wheel (513) through a bearing, and the connecting seat (515) is fixedly connected with the bottom end of the supporting plate (501).

7. A plastic punch aid according to claim 6, wherein the upper worm (514) is in a meshing connection with the upper worm wheel (502).