Perforating device for plastic bag processing

By designing a plastic bag punching device with a detachable punching head, and utilizing the cooperation of a cylinder and a return spring, it is possible to quickly change punching heads of different specifications, solving the problem of not being able to quickly change the hole diameter in existing technologies and improving processing efficiency.

CN223590256UActive Publication Date: 2025-11-25HANGZHOU HONGFENG PLASTIC PACKING CO LTD
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Patent Information

Application Number
CN202423141325.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-25
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing plastic bag punching devices can only replace one type of punching head, making it impossible to quickly change to different hole sizes, which affects processing efficiency.

Method used

A drilling device with a detachable punch head was designed. The punch head can be automatically changed through the cooperation of a cylinder and a return spring. Different specifications of punch heads can be quickly switched by using a drive motor and a longitudinal lead screw.

Benefits of technology

It enables quick replacement of punching heads of different specifications, avoiding the continuous impact on punching plastic bags during the replacement process and improving processing efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223590256U_ABST
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Abstract

The utility model discloses a punching device for plastic bag processing, which comprises a workbench, a fixed frame is arranged at the top of the workbench, a pressing assembly is arranged in the fixed frame, an air cylinder is arranged at the top of the fixed frame, an output shaft of the air cylinder penetrates through the fixed frame and is connected with a pressing plate, a mounting box is fixedly arranged in the fixed frame, and the pressing plate is connected with a pressing rod. A longitudinal lead screw is rotatably mounted in the mounting box, a driving motor is arranged at the front end of the mounting box, an output shaft of the driving motor is connected with the longitudinal lead screw, a plurality of moving seats are slidably arranged in the mounting box, the longitudinal lead screw is sleeved with the moving seats in a threaded mode, and an extension plate is arranged on one side of each moving seat. Through the arrangement, holes with different sizes can be conveniently formed by using the punching heads with different specifications, the application range of the punching head is expanded, and the punching heads which are not used are convenient to replace, so that the situation that the continuity of the plastic bag punching process is influenced by replacing the punching heads is avoided, and the machining efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of punching device for plastic bag processing. BACKGROUND

[0002] Plastic bag usually needs to be punched in processing process, to form air hole on plastic bag. The existing punching device is mostly provided with only one kind of punching head, only the punching hole of specific size can be formed on plastic bag, when different size holes are needed to be formed, punching head needs to be disassembled and replaced, which is time-consuming and laborious, and the punching process of plastic bag will be affected in this process, with certain inconvenience.

[0003] Therefore, it is necessary to provide a kind of punching device for plastic bag processing for solving the above problems. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a kind of punching device for plastic bag processing to solve the problems raised in the above background.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] A kind of punching device for plastic bag processing, including workbench, the top of the workbench is provided with fixed frame, the fixed frame is provided with compression assembly, the top of the fixed frame is provided with pneumatic cylinder, the pneumatic cylinder output shaft is connected with pressing plate and penetrates the fixed frame, the fixed frame is fixedly provided with installation box, the longitudinal screw rod is rotatably installed in the installation box, the drive motor is arranged at the front end of the installation box, the drive motor output shaft is connected with longitudinal screw rod, a plurality of mobile seats are slidably arranged in the installation box, the mobile seat is screwed to the longitudinal screw rod, the extension plate is arranged on the side of a plurality of mobile seats, the slide rod is slidably penetrated in the extension plate, the lifting plate is arranged at the top of the slide rod, the reset spring is arranged between the lifting plate and the extension plate, the reset spring is sleeved on the outside of the slide rod, a plurality of the slide rod bottom can be detachably connected with punching head, a plurality of the punching head specifications are different, the through hole is arranged in the workbench and is aligned with the punching head.

[0007] Preferably, the compression assembly includes horizontal plate, electric push rod and non-slip plate, the horizontal plate is provided with two, two horizontal plates are fixed on the inside of the fixed frame two sides respectively, the horizontal plate bottom is provided with electric push rod, the electric push rod output shaft is connected with non-slip plate, the non-slip plate bottom is provided with non-slip rubber pad.

[0008] Preferably, the installation box top and close to four end angles are provided with connecting rod, the connecting rod top is connected with fixed frame.

[0009] Preferably, a limit rod is provided inside the mounting box, and the movable seat is slidably sleeved on the limit rod.

[0010] Preferably, the bottom of the slide bar is provided with a connecting sleeve, a limit bolt is threadedly installed on one side of the connecting sleeve, a positioning block is provided on the top of the drilling head, the positioning block is adapted to the connecting sleeve, and a limit hole is provided on one side of the positioning block, the limit hole can be used for the insertion of the limit bolt.

[0011] Preferably, a collection box is provided at the bottom of the workbench, the collection box is connected to the through hole, a collection compartment is slidably disposed inside the collection box, and the top of the collection compartment is open.

[0012] Preferably, the workbench is provided with support legs near each of the four corners at its bottom.

[0013] The beneficial effects of this utility model are as follows: A plastic bag is placed on a workbench and pressed and fixed by a clamping assembly. The cylinder output shaft extends, causing the pressure plate to move downwards. This causes the pressure plate to push the lifting plate downwards, which in turn moves the sliding rod and the punching head at its bottom downwards. The punching head passes through the through hole to complete the punching of the plastic bag. When a different size punching head needs to be replaced, the cylinder output shaft retracts. Through the reaction force of the return spring, the lifting plate moves upwards to complete the reset. The drive motor is started, driving the longitudinal lead screw to rotate, causing the moving seat to slide back and forth, so that different sizes of punching heads are positioned directly below the pressure plate. The above process can be repeated, using different sizes of punching heads to form holes of different sizes. Unused punching heads are positioned in front of or behind the punching heads that need to be used for easy replacement, thus avoiding the impact of punching head replacement on the continuity of the plastic bag punching process and improving processing efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the protection scope of this utility model.

[0015] Figure 1 A front view of the entire device provided by this utility model;

[0016] Figure 2 Provided by this utility model Figure 1 Partial structural diagram;

[0017] Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 A side view of the mounting box provided by this utility model.

[0019] Wherein, 1, workbench; 2, fixed frame; 3, compression assembly; 31, horizontal plate; 32, electric push rod; 33, antiskid plate; 4, air cylinder; 5, pressing plate; 6, mounting box; 7, vertical screw rod; 8, driving motor; 9, moving seat; 10, extension plate; 11, slide rod; 12, lifting plate; 13, return spring; 14, punching head; 15, through hole; 16, connecting rod; 17, limiting rod; 18, connecting sleeve; 19, limiting bolt; 20, positioning block; 21, limiting hole; 22, collection box; 23, collection box; 24, supporting leg. DETAILED DESCRIPTION

[0020] Referring to Figures 1 to 4 The punching device for plastic bag processing shown in the figure comprises a workbench 1, the top of the workbench 1 is provided with a fixed frame 2, the fixed frame 2 is provided with a compression assembly 3 inside, the top of the fixed frame 2 is provided with an air cylinder 4, the output shaft of the air cylinder 4 penetrates through the fixed frame 2 and is connected with a pressing plate 5, a mounting box 6 is fixedly arranged in the fixed frame 2, a vertical screw rod 7 is rotatably arranged in the mounting box 6, a driving motor 8 is arranged at the front end of the mounting box 6, the output shaft of the driving motor 8 is connected with the vertical screw rod 7, a plurality of moving seats 9 are slidably arranged in the mounting box 6, the moving seats 9 are threadedly sleeved on the vertical screw rod 7, a plurality of extension plates 10 are arranged on one side of the moving seats 9, slide rods 11 are slidably arranged in the extension plates 10, lifting plates 12 are arranged at the top of the slide rods 11, return springs 13 are arranged between the lifting plates 12 and the extension plates 10, the return springs 13 are sleeved outside the slide rods 11, a plurality of punching heads 14 are detachably connected to the bottom of the slide rods 11, the punching heads 14 are different in specification, and through holes 15 are arranged in the workbench 1 and aligned with the punching heads 14.

[0021] Preferably, the compression assembly 3 comprises horizontal plates 31, electric push rods 32 and antiskid plates 33, the horizontal plates 31 are provided with two, the two horizontal plates 31 are respectively fixed to the two sides inside the fixed frame 2, the horizontal plates 31 are provided with electric push rods 32 at the bottom, the output shafts of the electric push rods 32 are connected with antiskid plates 33, and the bottom of the antiskid plates 33 is provided with antiskid rubber pads.

[0022] The output shafts of the two electric push rods 32 are elongated, the two antiskid plates 33 are driven to move downward, and the antiskid rubber pads at the bottom of the antiskid plates 33 are used to compress and fix the plastic bags on the workbench 1.

[0023] Preferably, connecting rods 16 are arranged at the top of the mounting box 6 and close to the four corners, and the connecting rods 16 are connected with the fixed frame 2 at the top.

[0024] The connecting rods 16 are used to ensure the firmness of the position of the mounting box 6.

[0025] Preferably, the mounting box 6 is internally provided with a limiting rod 17, and the moving seat 9 is sleeved on the limiting rod 17.

[0026] The limiting rod 17 is used to ensure the smooth sliding of the moving seat 9.

[0027] Preferably, the slide rod 11 is provided with a connecting sleeve 18 at the bottom, one side of the connecting sleeve 18 is threadedly provided with a limiting bolt 19, the punching head 14 is provided with a positioning block 20 at the top, the positioning block 20 is matched with the connecting sleeve 18, one side of the positioning block 20 is provided with a limiting hole 21, and the limiting bolt 19 is inserted into the limiting hole 21.

[0028] The limiting bolt 19 is rotated to be separated from the limiting hole 21, so that the limiting state of the positioning block 20 in the connecting sleeve 18 is released, and the positioning block 20 and the punching head 14 at the bottom of the positioning block 20 are removed.

[0029] Preferably, the workbench 1 is provided with a collecting box 22 at the bottom, the collecting box 22 is communicated with the through hole 15, and the collecting box 22 is internally and slidably provided with a collecting box 23, and the collecting box 23 is provided with an opening at the top.

[0030] The collecting box 23 and the collecting box 22 are used to make the waste of the plastic bag punching fall into the collecting box 23, and the collecting box 23 is pulled out to take out the waste of the plastic bag in the collecting box 23.

[0031] Preferably, the workbench 1 is provided with a supporting leg 24 near each of the four corners at the bottom.

[0032] The four supporting legs 24 are used to stably support the workbench 1.

[0033] In use, the plastic bag is placed on the workbench 1, the plastic bag is fixed by the pressing assembly 3, the output shaft of the air cylinder 4 is elongated to drive the pressing plate 5 to move downwards, so that the pressing plate 5 drives the lifting plate 12 to move downwards, so as to drive the slide rod 11 and the punching head 14 at the bottom of the slide rod 11 to move downwards, and the punching head 14 penetrates into the through hole 15, so as to complete the punching work of the plastic bag, when it is necessary to replace punching heads 14 of different specifications, the output shaft of the air cylinder 4 is retracted, the lifting plate 12 is driven to move upwards to reset through the reaction force of the reset spring 13, the driving motor 8 is started to drive the vertically arranged screw rod 7 to rotate, the moving seat 9 is driven to slide forwards and backwards, so that the punching head 14 of different specifications is located below the pressing plate 12, and the above work can be repeated, different specifications of the punching head 14 are used to form holes of different sizes, and the punching head 14 not in use is located in front of or behind the punching head 14 in use, so that the punching head 14 not in use can be replaced, thereby avoiding the influence of the replacement of the punching head 14 on the continuity of the punching process of the plastic bag, and improving the processing efficiency.

[0034] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A punching device for processing plastic bags, characterized by: The utility model provides a workbench is provided with fixed frame on the top, is provided with the compression assembly in fixed frame, is provided with pneumatic cylinder on the top of fixed frame, the pneumatic cylinder output shaft is connected with the pressing plate through fixed frame, is fixedly provided with installation box in fixed frame, is rotatably installed with longitudinal screw rod in installation box, is provided with drive motor on the front end of installation box, the drive motor output shaft is connected with longitudinal screw rod, a plurality of mobile seats are slidably arranged in installation box, the mobile seat is screwed on longitudinal screw rod, a plurality of mobile seat one side is provided with extension plate, the extension plate is slidably penetrated with slide rod, the slide rod top is provided with lifting plate, the lifting plate is provided with reset spring between extension plate, the reset spring is wrapped in the outside of slide rod, a plurality of slide rod bottom all can detachably connect with punch head, a plurality of punch head specifications are different, the inside of workbench and alignment punch head are provided with through hole.

2. The perforating device for processing plastic bags according to claim 1, characterized in that: The compression assembly includes a horizontal plate, an electric push rod and a non-slip plate, the horizontal plate is provided with two, two horizontal plates are fixed on both sides of the inside of the fixed frame, the horizontal plate is provided with an electric push rod at the bottom, the output shaft of the electric push rod is connected with a non-slip plate, the bottom of the non-slip plate is provided with a non-slip rubber pad.

3. The perforating device for processing plastic bags according to claim 1, characterized in that: The top of the installation box is provided with a connecting rod near the four corners, and the connecting rod is connected with the fixed frame.

4. The perforating device for processing plastic bags according to claim 1, characterized in that: The inside of the installation box is provided with a limiting rod, and the mobile seat is slidably connected with the limiting rod.

5. The perforating device for processing plastic bags according to claim 1, characterized in that: The bottom of the slide rod is provided with a connecting sleeve, a limiting bolt is screw-mounted on one side of the sleeve, a positioning block is provided on the top of the punch head, the positioning block is matched with the connecting sleeve, a limiting hole is provided on one side of the positioning block, and the limiting hole is connected with the limiting bolt.

6. The perforating device for processing plastic bags according to claim 1, characterized in that: The bottom of the workbench is provided with a collecting box, the collecting box is communicated with the through hole, a collecting box is slidably arranged in the collecting box, and the top of the collecting box is provided with an opening.

7. The perforating device for processing plastic bags according to claim 1, characterized in that: The bottom of the workbench is provided with a supporting leg near the four corners.