A punching device for processing plastic bags

Abstract

This utility model relates to the field of plastic bag technology and discloses a punching device for processing plastic bags, including a base plate and a U-shaped plate. Slide plates are slidably connected to the left and right sides of the inner wall of the U-shaped plate. A tabletop is fixedly connected to the bottom of the U-shaped plate. A base is fixedly connected to the bottom center of the slide plates. A connecting plate is fixedly connected to the bottom center of the base. Connecting frames are slidably connected to the front and rear ends of the connecting plate. Second sliding grooves are formed at both the front and rear ends of the inner wall of the connecting frame, and the inner walls of the second sliding grooves are slidably connected to the connecting plate. In this utility model, two anti-slip pressure plates press down on both sides of the material roll. With the output of the cylinder, the punching head moves downward, and the top rod presses the second spring and slides relative to the inner wall of the slide tube. The punching head punches holes in the material roll. The anti-slip pressure plates press the material roll tightly, making the punching process smoother and preventing deformation of the material roll during punching.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag technology, specifically a punching device for processing plastic bags. Background Technology

[0002] Plastic bags are polymer materials made from high molecular compounds such as polyethylene and polypropylene. They can effectively protect items from pollution and damage and are widely used in daily life scenarios such as shopping, food packaging, and storage, providing convenience for people's lives and the circulation of goods.

[0003] A punching device for plastic bag processing is a specialized device used to punch specific holes in the production process of plastic bags. It can quickly punch round holes, square holes, and other shapes at preset positions on plastic films or molded plastic bags to meet functional requirements such as ventilation, hanging, and threading. It is widely used in the processing of products such as shopping bags, garbage bags, and packaging bags.

[0004] Existing punching devices for plastic bag processing have the following problems: it is inconvenient to replace the punch head, the punch head needs to be replaced after long-term operation, and the punch head usually needs to be fixed with a flange. Disassembly requires the use of a screwdriver, which is not only time-consuming and laborious, but also requires maintenance personnel to bend over for a long time. In order to address the above problems, a punching device for plastic bag processing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a punching device for processing plastic bags, which solves the problem of inconvenient replacement of the punching head in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a punching device for processing plastic bags, comprising a base plate and a U-shaped plate. Slide plates are slidably connected to the left and right sides of the inner wall of the U-shaped plate. A tabletop is fixedly connected to the bottom of the U-shaped plate. A base is fixedly connected to the middle of the bottom of the slide plates. A connecting plate is fixedly connected to the middle of the bottom of the base. Connecting frames are slidably connected to the front and rear ends of the connecting plate. Second sliding grooves are provided at both the front and rear ends of the inner wall of the connecting frame. The inner walls of the second sliding grooves are slidably connected to the connecting plate. Third sliding grooves are provided on both the left and right sides of the bottom of the base. Limiting plates are slidably connected to the inner walls of the third sliding grooves. Limiting holes are provided on both the left and right sides of the connecting frame. The inner walls of the limiting holes are slidably connected to the limiting plates. Evenly distributed first springs are fixedly connected to both the left and right sides of the connecting plate. One side of each first spring is fixedly connected to the limiting plate. A punching head is fixedly connected to the bottom of the connecting frame. Pressing components are provided at the four corners of the bottom of the slide plates.

[0007] By adopting the above technical solution, when the stamping head needs to be replaced, the limiting plate is pressed to move along the inner wall of the third slide. After the limiting plate is disengaged from the limiting hole, the connecting frame and the stamping head can be removed for inspection or replacement.

[0008] As a further description of the above technical solution: the pressing assembly includes a slide tube, the top of which is fixedly connected to a slide plate, a top rod is slidably connected to the inner wall of the slide tube, a second spring is fixedly connected to the top of the top rod and the bottom of the top rod is fixedly connected to an anti-slip pressure plate.

[0009] By adopting the above technical solution, the two anti-slip pressure plates press down on both sides of the material roll. As the cylinder outputs, the punch head moves downward, the push rod presses the second spring and slides relative to the inner wall of the slide tube. The punch head punches holes in the material roll, and the anti-slip pressure plates press the material roll tightly, which makes the punching smoother and avoids deformation of the material roll during the punching process.

[0010] As a further description of the above technical solution: a stamping hole is provided in the middle of the top of the desktop.

[0011] By adopting the above technical solution, the stamping port can be made convenient for stamping.

[0012] As a further description of the above technical solution: the inner wall of the U-shaped plate is provided with evenly distributed first sliding grooves on both the left and right sides, and the inner wall of the first sliding groove is slidably connected to the sliding plate.

[0013] By adopting the above technical solution, the first groove allows the slide plate to slide stably.

[0014] As a further description of the above technical solution: a cylinder is fixedly connected to the top of the U-shaped plate, and the output end of the cylinder is fixedly connected to the slide plate.

[0015] By adopting the above technical solution, the cylinder drives the slide plate to move.

[0016] As a further description of the above technical solution: a control panel is provided on the left side of the U-shaped plate, and the control panel is electrically connected to the cylinder.

[0017] By adopting the above technical solution, the control panel controls the opening and closing of the cylinder.

[0018] As a further description of the above technical solution: each of the four bottom corners of the desktop is fixedly connected with a fixing rod, and the bottom of the fixing rod is fixedly connected to the base plate.

[0019] By adopting the above technical solution, a fixed rod is used to install the desktop.

[0020] As a further description of the above technical solution: a collection box is provided at the top center of the desktop.

[0021] By adopting the above technical solution, the collection frame is used to collect the waste material that has been stamped.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The present invention provides a punching device for processing plastic bags. When the punching head needs to be replaced, the limiting plate is pressed to move along the inner wall of the third slide. After the limiting plate is disengaged from the limiting hole, the connecting frame and the punching head can be removed for inspection or replacement.

[0024] 2. The present invention provides a punching device for processing plastic bags. Two anti-slip pressure plates press down on both sides of the material roll. With the output of the cylinder, the punching head moves downward. The top rod presses the second spring and slides relative to the inner wall of the slide tube. The punching head punches the material roll. The anti-slip pressure plates press the material roll tightly, which makes the punching smoother and avoids deformation of the material roll during the punching process. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a rear view of the present invention;

[0027] Figure 3 This is an exploded view of the connecting frame of this utility model;

[0028] Figure 4 This is a schematic diagram of the base of this utility model;

[0029] Figure 5 This is a schematic diagram of the anti-slip pressure plate of this utility model.

[0030] In the diagram: 1. Cylinder; 2. Control panel; 3. Punch head; 4. Collection frame; 5. Base plate; 6. Fixing rod; 7. Desktop; 8. First slide groove; 9. Slide plate; 10. U-shaped plate; 11. Slide tube; 12. Punch head; 13. Connecting frame; 14. Base; 15. Limiting hole; 16. Second slide groove; 17. First spring; 18. Connecting plate; 19. Limiting plate; 20. Third slide groove; 21. Anti-slip pressure plate; 22. Top rod; 23. Second spring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0033] Combination Figure 1 This utility model discloses a punching device for processing plastic bags, comprising a base plate 5 and a U-shaped plate 10. Slide plates 9 are slidably connected to the left and right sides of the inner wall of the U-shaped plate 10. A tabletop 7 is fixedly connected to the bottom of the U-shaped plate 10, through which the U-shaped plate 10 is mounted. A punching hole 3 is provided in the center of the top of the tabletop 7 for convenient punching. Evenly distributed first sliding grooves 8 are provided on both the left and right sides of the inner wall of the U-shaped plate 10. The inner wall of the first sliding groove 8 is slidably connected to the slide plate 9, allowing the slide plate 9 to slide stably. A cylinder 1 is fixedly connected to the top of the plate 10. The output end of the cylinder 1 is fixedly connected to the slide plate 9. The slide plate 9 is moved by the cylinder 1. A control panel 2 is set on the left side of the U-shaped plate 10. The control panel 2 is electrically connected to the cylinder 1. The cylinder 1 is opened and closed by the control panel 2. Fixing rods 6 are fixedly connected to the four corners of the bottom of the tabletop 7. The bottom of the fixing rods 6 is fixedly connected to the base plate 5. The tabletop 7 is installed by the fixing rods 6. A collection frame 4 is set in the middle of the top of the tabletop 7. The waste material from the stamping is collected by the collection frame 4.

[0034] Combination Figures 2-4 A base 14 is fixedly connected to the bottom center of the slide plate 9, and the base 14 is mounted on the slide plate 9. A connecting plate 18 is fixedly connected to the bottom center of the base 14. A connecting frame 13 is slidably connected to the front and rear ends of the connecting plate 18. A second sliding groove 16 is provided at both the front and rear ends of the inner wall of the connecting frame 13. The inner wall of the second sliding groove 16 is slidably connected to the connecting plate 18, allowing the connecting plate 18 to slide stably. A third sliding groove 20 is provided on both the left and right sides of the bottom of the base 14. A limit plate 19 is slidably connected to the inner wall of the third sliding groove 20. To ensure stable sliding of the limiting plate 19, limiting holes 15 are provided on both the left and right sides of the connecting frame 13. The inner wall of the limiting hole 15 is slidably connected to the limiting plate 19, and the limiting plate 19 is limited by the limiting hole 15. The left and right sides of the connecting plate 18 are fixedly connected with evenly distributed first springs 17. One side of the first spring 17 is fixedly connected to the limiting plate 19, and the limiting plate 19 is pressed tightly by the elastic force of the first spring 17 to prevent it from falling out of the limiting hole 15. The bottom of the connecting frame 13 is fixedly connected with a punch head 12, and the punch head 12 is connected through the connecting frame 13.

[0035] Combination Figure 1 , Figure 2 and Figure 5 The bottom four corners of the slide plate 9 are equipped with pressing components, each including a slide tube 11. The top of the slide tube 11 is fixedly connected to the slide plate 9, and the slide tube 11 is installed through the slide plate 9. A top rod 22 is slidably connected to the inner wall of the slide tube 11. A second spring 23 is fixedly connected to the top of the top rod 22 and the slide tube 11. The spring force of the second spring 23 presses the top rod 22 tightly. The greater the deformation of the second spring 23, the greater the spring force, and the tighter the pressing of the material roll. An anti-slip pressure plate 21 is fixedly connected to the bottom of the top rod 22. The anti-slip pressure plate 21 presses the material roll tightly to prevent deformation and make the stamping more efficient.

[0036] The working principle is as follows: the plastic bag roll passes through the inner wall of the U-shaped plate 10. When stamping is required, the cylinder 1 is opened. The output end of the cylinder 1 drives the slide plate 9 to move along the inner wall of the first slide groove 8. Then, the two anti-slip pressure plates 21 press down on both sides of the roll. Then the cylinder 1 continues to output. As the stamping head 3 moves downward, the top rod 22 presses the second spring 23 and slides relative to the inner wall of the slide tube 11. The anti-slip pressure plates 21 also press tighter. Then the stamping head punches holes in the roll. The anti-slip pressure plates 21 press the roll tightly, which makes the stamping smoother and avoids deformation of the roll during the stamping process. When the stamping head 3 needs to be replaced, the limiting plate 19 is pressed. The limiting plate 19 presses the first spring 17 and moves along the inner wall of the third slide groove 20. After the limiting plate 19 is disengaged from the limiting hole 15, the connecting frame 13 and the stamping head 12 can be removed for inspection or replacement.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching device for processing plastic bags, comprising a base plate (5) and a U-shaped plate (10), characterized in that: The inner walls of the U-shaped plate (10) are slidably connected to the left and right sides of the plate. The bottom of the U-shaped plate (10) is fixedly connected to the tabletop (7). The bottom center of the plate (9) is fixedly connected to the base (14). The bottom center of the base (14) is fixedly connected to the connecting plate (18). The front and rear ends of the connecting plate (18) are slidably connected to the connecting frame (13). The inner walls of the connecting frame (13) are provided with second grooves (16) at both the front and rear ends. The inner walls of the second grooves (16) are slidably connected to the connecting plate (18). The bottom left and right sides of the base (14) are slidably connected to the connecting plate (18). A third sliding groove (20) is provided on each side. A limiting plate (19) is slidably connected to the inner wall of the third sliding groove (20). A limiting hole (15) is provided on both the left and right sides of the connecting frame (13). The inner wall of the limiting hole (15) is slidably connected to the limiting plate (19). A first spring (17) is evenly distributed on both the left and right sides of the connecting plate (18). One side of the first spring (17) is fixedly connected to the limiting plate (19). A punch head (12) is fixedly connected to the bottom of the connecting frame (13). A pressing component is provided at each of the four corners of the bottom of the sliding plate (9).

2. The punching device for processing plastic bags according to claim 1, characterized in that: The pressing assembly includes a slide tube (11), the top of which is fixedly connected to a slide plate (9), a top rod (22) is slidably connected to the inner wall of the slide tube (11), a second spring (23) is fixedly connected to the top of the top rod (22) and the slide tube (11), and an anti-slip pressure plate (21) is fixedly connected to the bottom of the top rod (22).

3. The punching device for processing plastic bags according to claim 1, characterized in that: A stamping opening (3) is provided at the top center of the desktop (7).

4. The punching device for processing plastic bags according to claim 1, characterized in that: The inner wall of the U-shaped plate (10) is provided with evenly distributed first sliding grooves (8) on both the left and right sides, and the inner wall of the first sliding groove (8) is slidably connected to the sliding plate (9).

5. The punching device for processing plastic bags according to claim 1, characterized in that: A cylinder (1) is fixedly connected to the top of the U-shaped plate (10), and the output end of the cylinder (1) is fixedly connected to the slide plate (9).

6. The punching device for processing plastic bags according to claim 1, characterized in that: A control panel (2) is provided on the left side of the U-shaped plate (10), and the control panel (2) is electrically connected to the cylinder (1).

7. The punching device for processing plastic bags according to claim 1, characterized in that: The bottom four corners of the desktop (7) are fixedly connected with fixing rods (6), and the bottom of the fixing rods (6) is fixedly connected to the base plate (5).

8. The punching device for processing plastic bags according to claim 1, characterized in that: A collection box (4) is provided at the top center of the desktop (7).

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