A die suitable for die cutting a pull tab

By introducing electric and hydraulic cylinders into the mold to drive the pressure plate to press the film, and combining it with the conveying mechanism and discharge structure, the problem of easy-to-stretch film sliding during the punching process is solved, achieving stable processing and efficient production.

CN224544803UActive Publication Date: 2026-07-24YANCHENG DONGSHENG PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG DONGSHENG PRECISION TECH CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, easily spun film tends to slip during the punching process, resulting in poor stability and affecting processing efficiency and quality.

Method used

A mold was designed, comprising an upper mold body and a lower mold body. An electric cylinder and a hydraulic cylinder drive the pressure plate to press the film on both sides, and rubber pads are provided to prevent slippage. Combined with a conveying mechanism and a discharge structure, the mold ensures stable conveying and separation of the film.

Benefits of technology

It improves the processing stability and quality of easy-to-stretch film, reduces manual sorting time and costs, and enhances processing efficiency and product integrity.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224544803U_ABST
    Figure CN224544803U_ABST
Patent Text Reader

Abstract

The utility model discloses a mould suitable for die cutting easy draw silk rubber sheet, including lower mould body, the upper portion of lower mould body is provided with upper mould body, the inside of upper mould body is provided with the material conveying groove hole, the inside of material conveying groove hole is provided with die cutting die head, the both sides of die cutting die head are provided with the pressing plate respectively in symmetry, the below of pressing plate is fixedly installed with rubber pad, the upper portion of upper mould body is fixedly installed with top box, the inside of top box is provided with electric cylinder no.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a mold suitable for punching and cutting easy-to-draw film. Background Technology

[0002] Easy-tear tape is a type of tape or film with easy-tear properties. It is usually made of plastic material and coated with adhesive on one side. Its main feature is that it can be easily pulled out and torn without the need for tools such as scissors, making it very convenient to use. This tape has strong adhesion and can be firmly attached to various surfaces. It is suitable for various scenarios such as packaging, sealing, fixing and protecting items. In the production process, easy-tear tape requires the use of molds to cut the rolled strip of tape into the required easy-tear tape shape. For example, the patent with publication number CN217195782U (a die-cutting device for easy-pull adhesive) includes a support base, a limiting seat above the support base, a groove in the middle of the support base, an easy-pull adhesive in the inner cavity of the groove, a die-cutting mechanism on the limiting seat, the die-cutting mechanism including a fixed frame, a hydraulic cylinder, a piston rod, a die-cutting blade, a connecting groove and a pad, the bottom of the piston rod is fixedly connected to the top of the die-cutting blade, the die-cutting blade is located above the pad, the piston rod is located at the output end of the hydraulic cylinder, positioning rods are provided on both sides of the support base, the positioning rods are provided with rotating sleeves, and a sleeve is fitted on the outer wall of the rotating sleeve; While the aforementioned existing technology facilitates quick and easy pressing of the die-cutting blade using a hydraulic cylinder, it lacks an auxiliary pressing structure. Consequently, during the die-cutting process of easy-to-cut film, the film may slip, which is detrimental to the stable die-cutting operation. Therefore, there is an urgent market need to develop a mold suitable for die-cutting easy-to-cut film to help solve the existing problems. Utility Model Content

[0003] The purpose of this invention is to provide a mold suitable for punching easily woven film, so as to solve the problem mentioned in the background art that the easily woven film will slide during the punching process, which is not conducive to the stable punching operation of the easily woven film.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mold suitable for punching easily shredded film, comprising a lower mold body, an upper mold body disposed above the lower mold body, a material feeding groove disposed inside the upper mold body, a punching die head disposed inside the material feeding groove, pressure plates symmetrically disposed on both sides of the punching die head, a rubber pad fixedly installed below the pressure plates, a top box fixedly installed above the upper mold body, an electric cylinder 1 disposed inside the top box, two electric cylinder 1s are disposed, the two electric cylinder 1s are respectively positioned opposite the two pressure plates, the electric cylinder 1s are fixedly connected to the upper mold body, and the push rod end of the electric cylinder 1 slides into the material feeding groove of the upper mold body and is fixedly connected to the pressure plate.

[0005] Preferably, a hydraulic cylinder is provided between the two electric cylinders. The hydraulic cylinder is fixedly connected to the upper mold body, and the piston rod end of the hydraulic cylinder slides into the material feeding groove of the upper mold body and is fixedly connected to the punching die head.

[0006] Preferably, a punching die is fixedly installed on the upper part of the lower mold body, the punching die is positioned corresponding to the punching die head, a sliding cavity is provided inside the lower mold body along the lower part of the punching die, a discharge hopper is fixedly installed on the lower part of one side of the lower mold body, the discharge hopper is connected to the sliding cavity, and a waste output hopper is fixedly installed on the upper part of one side of the lower mold body, the waste output hopper is connected to the conveying groove hole.

[0007] Preferably, a conveying mechanism is provided inside the material conveying trough along one side of the pressure plate, and the conveying mechanism includes a lifting plate, a compression spring, a roller frame, and a pressure roller.

[0008] Preferably, there are two compression springs, which are fixedly installed on both sides below the lifting plate. The roller frame is fixedly installed below the compression springs, and the pressure roller is rotatably installed inside the roller frame.

[0009] Preferably, the top box is equipped with an electric cylinder two, the push rod end of the electric cylinder two extends slidably into the inside of the material conveying trough and is fixedly connected to the lifting plate.

[0010] Preferably, the compression spring has a column inside, the lower end of the column is fixedly connected to the roller frame, and the upper end of the column slides to the top of the lifting plate and is fixedly installed with a limit plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting symmetrical pressure plates inside the upper mold body, can press the two sides of the punching part of the easy-to-draw film during the punching process, preventing slippage, improving processing efficiency and quality. The rubber pad is fixedly installed under the pressure plate, which avoids the damage that direct pressing may cause to the surface of the film, further ensuring the integrity of the product and increasing its practicality.

[0012] This utility model, through the setting of a sliding chamber, a discharge hopper, and a waste output hopper, enables the easily shredded film and waste materials after punching to be discharged separately, avoiding mixing, reducing the time and cost of manual sorting, and increasing practicality.

[0013] This utility model, through the setting of the conveying mechanism, keeps the easy-to-draw film to be punched stable during the conveying process, and through the setting of the compression spring, the pressure roller can automatically adjust the pressure according to the thickness of the easy-to-draw film, thus increasing its practicality. Attached Figure Description

[0014] Figure 1 This is a front view of a mold suitable for punching and cutting easily stretchable film according to the present invention; Figure 2 This is a cross-sectional view of a mold suitable for punching and cutting easily stretchable film according to this utility model; Figure 3 This is a side view of the conveying mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the pressure plate of this utility model.

[0015] In the diagram: 1. Lower mold body; 101. Sliding cavity; 2. Upper mold body; 201. Material conveying groove; 3. Top box; 4. Discharge hopper; 5. Waste material output hopper; 6. Lower punching die; 7. Hydraulic cylinder; 8. Punching die head; 9. Electric cylinder one; 10. Pressure plate; 11. Electric cylinder two; 12. Conveying mechanism; 1201. Lifting plate; 1202. Compression spring; 1203. Roller frame; 1204. Pressure roller; 13. Column; 14. Limiting plate; 15. Rubber pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figure 1-4 This utility model provides an embodiment of a mold suitable for punching and cutting easy-to-draw film, including a lower mold body 1, an upper mold body 2 above the lower mold body 1, a material feeding groove 201 inside the upper mold body 2, a punching die head 8 inside the material feeding groove 201, pressure plates 10 symmetrically arranged on both sides of the punching die head 8, a rubber pad 15 fixedly installed below the pressure plate 10, a top box 3 fixedly installed above the upper mold body 2, and an electric cylinder 9 inside the top box 3. There are two electric cylinders 9, and the two electric cylinders 9 are respectively positioned opposite the two pressure plates 10. The electric cylinders 9 are fixedly connected to the upper mold body 2, and the push rod end of the electric cylinder 9 slides into the material feeding groove 201 of the upper mold body 2 and is fixedly connected to the pressure plate 10.

[0018] By using the pressure plate 10, during the die-cutting process of the easy-to-draw film, the pressure plate 10 is driven to move downward by the electric cylinder 9, which can press the two sides of the die-cutting part of the easy-to-draw film to prevent slippage, improve processing efficiency and quality, and avoid damage to the film surface that may be caused by direct pressing by using the rubber pad 15, further ensuring the integrity of the product.

[0019] Furthermore, a hydraulic cylinder 7 is provided between the two electric cylinders 9. The hydraulic cylinder 7 is fixedly connected to the upper mold body 2. The piston rod end of the hydraulic cylinder 7 slides into the material feeding groove 201 of the upper mold body 2 and is fixedly connected to the punching die head 8.

[0020] The hydraulic cylinder 7 is designed to drive the punching die 8 to complete the punching operation. The stability of the hydraulic cylinder 7 ensures the stable movement of the punching die 8, avoids poor punching due to insufficient force, and improves practicality.

[0021] Furthermore, a punching die 6 is fixedly installed on the upper part of the lower die body 1. The punching die 6 is positioned corresponding to the punching die head 8. A sliding cavity 101 is provided inside the lower die body 1 along the lower part of the punching die 6. A discharge hopper 4 is fixedly installed on the lower part of one side of the lower die body 1. The discharge hopper 4 is connected to the sliding cavity 101. A waste output hopper 5 is fixedly installed on the upper part of one side of the lower die body 1. The waste output hopper 5 is connected to the conveying groove hole 201.

[0022] The design of the material sliding chamber 101, the discharge hopper 4, and the waste output hopper 5 allows the easily shredded film and waste materials after punching to be discharged separately, avoiding mixing, reducing the time and cost of manual sorting, and increasing practicality.

[0023] Furthermore, a conveying mechanism 12 is provided inside the material conveying trough 201 along one side of the pressure plate 10. The conveying mechanism 12 includes a lifting plate 1201, a compression spring 1202, a roller frame 1203, and a pressure roller 1204. Two compression springs 1202 are provided, and the two compression springs 1202 are fixedly installed on both sides below the lifting plate 1201. The roller frame 1203 is fixedly installed below the compression springs 1202. The pressure roller 1204 is rotatably installed inside the roller frame 1203. A drive motor for the pressure roller 1204 is provided on one side of the roller frame 1203.

[0024] The conveying mechanism 12 is designed to keep the easily woven film to be punched stable during the conveying process. The elastic setting of the compression spring 1202 allows the pressure roller 1204 to automatically adjust the pressure according to the thickness of the film, ensuring the stability and adaptability of the conveying process.

[0025] Furthermore, an electric cylinder 11 is installed inside the top box 3. The electric cylinder 11 is fixedly connected to the upper mold body 2. The push rod end of the electric cylinder 11 slides into the inside of the material conveying groove 201 and is fixedly connected to the lifting plate 1201.

[0026] The electric cylinder 11 enables the conveying mechanism 12 to automatically lift and lower, which is beneficial for the automated conveying of film, reduces manual intervention, and increases practicality.

[0027] Furthermore, the compression spring 1202 has a column 13 inside, the lower end of the column 13 is fixedly connected to the roller frame 1203, and the upper end of the column 13 slides to the top of the lifting plate 1201 and is fixedly installed with a limit plate 14.

[0028] The column 13 makes the movement of the compression spring 1202 more stable, avoiding the problem of poor conveying caused by spring deviation. The limit plate 14 prevents the lifting plate 1201 from rising or falling excessively, increasing its practicality.

[0029] Working principle: During use, in the process of punching and cutting the easy-drawable film, the conveying mechanism 12 smoothly conveys the strip of easy-drawable film to the punching position. The pressure roller 1204 in the conveying mechanism 12 automatically adjusts the pressure according to the thickness of the film under the action of the compression spring 1202 to ensure the stability of the conveying. During punching, the electric cylinder 9 drives the pressure plate 10 to move down, and the rubber pad 15 under the pressure plate 10 presses the two sides of the film to prevent slippage. At the same time, the hydraulic cylinder 7 drives the punching die head 8 to move down, which cooperates with the punching lower die 6 to complete the punching operation. The finished product after punching slides into the discharge hopper 4 through the sliding cavity 101 for output, which increases its practicality.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mold suitable for punching and cutting easily stretchable film, comprising a lower mold body (1), characterized in that: An upper mold body (2) is provided above the lower mold body (1). A material conveying groove (201) is provided inside the upper mold body (2). A punching die (8) is provided inside the material conveying groove (201). Pressure plates (10) are symmetrically arranged on both sides of the punching die (8). A rubber pad (15) is fixedly installed below the pressure plate (10). A top box (3) is fixedly installed above the upper mold body (2). An electric cylinder (9) is provided inside the top box (3). There are two electric cylinders (9). The two electric cylinders (9) are respectively positioned opposite to the two pressure plates (10). The electric cylinders (9) are fixedly connected to the upper mold body (2). The push rod end of the electric cylinder (9) slides into the material conveying groove (201) of the upper mold body (2) and is fixedly connected to the pressure plate (10).

2. The mold for punching and cutting easy-to-stretch film according to claim 1, characterized in that: A hydraulic cylinder (7) is provided between the two electric cylinders (9). The hydraulic cylinder (7) is fixedly connected to the upper mold body (2). The piston rod end of the hydraulic cylinder (7) slides into the material feeding slot (201) of the upper mold body (2) and is fixedly connected to the punching die head (8).

3. A mold for punching and cutting easily stretchable film according to claim 1, characterized in that: A punching die (6) is fixedly installed on the upper part of the lower die body (1). The punching die (6) is positioned corresponding to the punching die head (8). A sliding cavity (101) is provided inside the lower die body (1) along the lower part of the punching die (6). A discharge hopper (4) is fixedly installed on the lower part of one side of the lower die body (1). The discharge hopper (4) is connected to the sliding cavity (101). A waste output hopper (5) is fixedly installed on the upper part of one side of the lower die body (1). The waste output hopper (5) is connected to the conveying groove (201).

4. A mold for punching and cutting easily stretchable film according to claim 1, characterized in that: The conveying mechanism (12) is provided inside the material conveying trough (201) along one side of the pressure plate (10). The conveying mechanism (12) includes a lifting plate (1201), a compression spring (1202), a roller frame (1203), and a pressure roller (1204).

5. A mold for punching and cutting easily stretchable film according to claim 4, characterized in that: Two compression springs (1202) are provided, and the two compression springs (1202) are fixedly installed on both sides below the lifting plate (1201). The roller frame (1203) is fixedly installed below the compression springs (1202), and the pressure roller (1204) is rotatably installed inside the roller frame (1203).

6. A mold for punching and cutting easily stretchable film according to claim 5, characterized in that: The top box (3) is equipped with an electric cylinder two (11), and the push rod end of the electric cylinder two (11) slides into the inside of the material conveying trough (201) and is fixedly connected to the lifting plate (1201).

7. A mold for punching and cutting easily stretchable film according to claim 6, characterized in that: The compression spring (1202) has a column (13) inside. The lower end of the column (13) is fixedly connected to the roller frame (1203). The upper end of the column (13) slides to the top of the lifting plate (1201) and is fixedly installed with a limit plate (14).