A multi-knife die for die cutting of a multi-layer film article

By improving the design of the bottom and top plates of the multi-blade mold, and combining it with limit pins and connecting bolts, the problem of mold deformation was solved, enabling precise die-cutting of multi-layer film products and improving processing stability and accuracy.

CN224323241UActive Publication Date: 2026-06-05SHENZHEN MGM ELECTRONICS IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN MGM ELECTRONICS IND CO LTD
Filing Date
2025-05-30
Publication Date
2026-06-05

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    Figure CN224323241U_ABST
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Abstract

The utility model relates to the field of film cutting processing technology of film products, especially a multi-cutter die for multilayer film product die cutting, including the bottom plate, the middle part of bottom plate top surface is protruding upwards and forms the mounting platform, and its top surface is fixedly installed with the rubber plate, the utility model has the advantages that through setting up bottom plate and top plate, the middle part of top plate is provided with the installation groove, and its inside is installed with the cutter plate, and the pressing plate is fixedly connected with top plate through bolt, and the cutter plate and die cutter are pressed tightly, and the top surface of bottom plate is provided with the mounting platform, and then the top plate and bottom plate have better structural strength, and the shear resistance and deformation resistance are stronger, the deformation of itself is avoided, the smooth progress of film cutting processing is ensured, through setting up four limit pins, four cooperate with the limiting hole on the both sides of bottom plate, and then the precision of the cooperation of bottom plate and template in the film cutting process is provided, the film cutting processing is more accurate, and the problems existing in the prior art are effectively solved.
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Description

Technical Field

[0001] This utility model relates to the field of film product cutting technology, and in particular to a multi-blade mold for die cutting multi-layer film products. Background Technology

[0002] Die-cutting of multilayer film products is a precision layer cutting and forming process for composite materials (such as adhesive films, protective films, conductive films, etc.). Its core is to use high-precision molds and equipment to customize the cutting of multilayer superimposed thin film materials to meet the functional requirements of complex structure products.

[0003] Traditional multi-blade dies typically employ a two-plate design, which is then glued onto the moving and stationary dies of an external die-cutting machine. The die-cutting machine then operates, causing the two plates to adhere to each other, allowing the cutter and backing plate to work together to cut the film product. However, the single-plate design of multi-blade dies is relatively simple and susceptible to external impacts, leading to problems such as die deformation and inaccurate fit. Therefore, this paper proposes a multi-blade die for die-cutting multi-layer film products to address these issues. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-blade mold for die-cutting multilayer film products, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a multi-blade mold for die-cutting multilayer film products, including a base plate. The top surface of the base plate protrudes upward to form a mounting platform, and a rubber plate is fixedly mounted on its top surface. A top plate is provided on the top surface of the base plate, and a stepped mounting groove is opened in the middle of the top plate. A blade plate is installed inside the mounting groove, and a die-cutting blade is installed in the middle of the blade plate. A pressure plate is installed on the top surface of the top plate, and a protrusion is formed in the middle of the bottom surface of the pressure plate, which presses the blade plate and the die-cutting blade.

[0006] Preferably, in any of the above solutions, limit holes are provided on both sides of the bottom plate, and limit pins are installed on both sides of the bottom surface of the top plate. In this solution, the bottom ends of the four limit pins are all provided with bevels, which facilitates the matching of the limit pins with the limit holes, thereby enabling the bottom plate and the top plate to match precisely, and enabling the die-cutting blade to match the rubber plate. The external film cutting equipment drives the top plate to move downward in a cyclical motion to complete the film cutting process of the multilayer film product.

[0007] Preferably, as described in any of the above embodiments, the bottom surface of the base plate and the top surface of the pressing plate are provided with multiple tape mounting slots, and each of the multiple tape mounting slots is equipped with connecting tape. This method facilitates the provision of mounting positions for the connecting tapes. Furthermore, since the multiple connecting tapes are double-sided adhesive, after application, the release paper on the connecting tapes needs to be removed, thus facilitating the fixed connection between the base plate and the pressing plate and the external film cutting equipment. This allows the moving template on the die-cutting equipment to cyclically descend and rise, thereby driving the top plate and the pressing plate to vertically rise and fall, and performing die-cutting processing on the film product using the die-cutting blade and the adhesive plate.

[0008] Preferably, in any of the above embodiments, stepped holes are provided at the four corners of the bottom surface of the top plate. Connecting bolts are installed inside each of the four stepped holes, passing through them and threadedly connected to the pressure plate. In this embodiment, the stepped holes provide installation positions for the four connecting bolts, allowing them to fix the top plate to the pressure plate. Simultaneously, the pressure plate presses down on the cutter plate and die-cutting blade, facilitating later replacement of the cutter plate and die-cutting blade as a whole. This also allows for the installation of die-cutting blades with different structures, and enables the installation of different types of adhesive sheets on the top surface of the mounting platform, which can then be used in conjunction with different types of die-cutting blades to complete the processing of film products, thus enhancing practicality.

[0009] Preferably, in any of the above solutions, the four sides of the cutter plate are stepped, which fits into the inner wall of the mounting groove. This solution facilitates the placement of the cutter plate inside the mounting groove. The stepped shape of the mounting groove facilitates the clamping of the cutter plate after the pressure plate and the top plate are fixedly connected. This allows the cutter plate, the top plate, and the pressure plate to be connected as a whole, enabling vertical movement driven by the moving template of the external film cutting equipment. This allows the moving template to move together with the cutter plate to perform die-cutting on the film product. The above structure is more stable and has higher structural strength, preventing deformation.

[0010] This utility model has the following advantages:

[0011] This multi-blade die for die-cutting multi-layer film products features a base plate and a top plate. The top plate has a mounting groove in its center, where a cutting blade plate is installed. A clamping plate is bolted to the top plate and clamps the cutting blade plate and die-cutting blade. A mounting platform is provided on the top surface of the base plate, thus giving the top and bottom plates better structural strength, shear resistance, and deformation resistance, preventing deformation and ensuring smooth film cutting. Four limiting pins, which engage with limiting holes on both sides of the base plate, facilitate precise matching between the base plate and the die template during film cutting, making the process more accurate and effectively solving problems existing in the prior art. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0014] Figure 3 This is an exploded structural diagram of the top plate and the clamping plate of this utility model;

[0015] Figure 4 This is a schematic diagram of the top plate structure of this utility model;

[0016] Figure 5 This is a first-view structural diagram of the base plate of this utility model;

[0017] Figure 6 This is a second-view structural diagram of the base plate of this utility model.

[0018] In the diagram: 1-base plate, 2-limit pin, 3-connecting tape, 4-pressure plate, 5-top plate, 6-die-cutting blade, 7-mounting platform, 8-blade plate, 9-protrusion, 10-connecting bolt, 11-stepped hole, 12-limiting hole, 13-adhesive plate, 14-tape mounting groove, 15-mounting groove. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0020] like Figures 1 to 6 As shown, a multi-blade die for die-cutting multi-layer film products includes a base plate 1. A mounting platform 7 is formed by an upward protrusion in the center of the top surface of the base plate 1, and a rubber plate 13 is fixedly mounted on its top surface. A top plate 5 is provided on the top surface of the base plate 1, with a stepped mounting groove 15 in its center. A cutting blade plate 8 is installed inside the mounting groove 15, and a die-cutting blade 6 is mounted in the center of the cutting blade plate 8. A pressure plate 4 is mounted on the top surface of the top plate 5, with a protrusion 9 forming a downward protrusion in the center of the bottom surface of the pressure plate 4, which presses against the cutting blade plate 8 and the die-cutting blade 6. The rubber plate 13 is attached to the top surface of the mounting platform 7 with double-sided adhesive. Simultaneously, a groove is formed on the top surface of the rubber plate 13 to mate with the die-cutting blade 6. After the top plate 5 and the base plate 1 are installed inside the film-cutting equipment, the top plate 5 is driven to move vertically, causing the die-cutting blade 6 to mate with the groove, thus facilitating the film-cutting process of multi-layer film products.

[0021] Limiting holes 12 are provided on both sides of the bottom plate 1, and limiting pins 2 are installed on both sides of the bottom surface of the top plate 5. As an optional technical solution of this utility model, the bottom ends of the four limiting pins 2 are all provided with bevels, so as to facilitate the matching of the limiting pins 2 with the limiting holes 12, thereby making the bottom plate 1 and the top plate 5 accurately match, and making the die-cutting blade 6 match the rubber plate 13. The top plate 5 is driven to move downward in a cycle by the external film cutting equipment to complete the film cutting process of the multilayer film product.

[0022] Multiple tape mounting slots 14 are provided on the bottom surface of the base plate 1 and the top surface of the pressing plate 4, and connecting tapes 3 are installed inside the multiple tape mounting slots 14. As an optional technical solution of this utility model, this facilitates the provision of installation positions for the connecting tapes 3. At the same time, the multiple connecting tapes 3 are double-sided adhesives. After the tapes are pasted, the release paper on the connecting tapes 3 needs to be peeled off, so that the base plate 1 and the pressing plate 4 can be fixedly connected to the external film cutting equipment. This allows the moving template on the die-cutting equipment to circulate downward and upward, thereby driving the top plate 5 and the pressing plate 4 to rise and fall vertically. The film products are then die-cut by the die-cutting knife 6 and the adhesive plate 13.

[0023] Stepped holes 11 are provided at the four corners of the bottom surface of the top plate 5. Each of the four stepped holes 11 is fitted with a connecting bolt 10. The four connecting bolts 10 pass through the stepped holes 11 and are threadedly connected to the pressure plate 4. As an optional technical solution of this utility model, the stepped holes 11 provide installation positions for the four connecting bolts 10, thereby allowing the connecting bolts 10 to fix the top plate 5 to the pressure plate 4. At the same time, the pressure plate 4 presses the cutter plate 8 and the die-cutting blade 6, which also facilitates the replacement of the cutter plate 8 and the die-cutting blade 6 as a whole in the later stage. It is convenient to install die-cutting blades 6 with different structures. At the same time, different types of adhesive plates 13 are installed on the top surface of the mounting platform 7, and then cooperate with different types of die-cutting blades 6 to complete the processing of film products, which is more practical.

[0024] The blade plate 8 has a stepped shape on all four sides, which matches the inner wall of the mounting groove 15. As an optional technical solution of this utility model, this makes it easy to place the blade plate 8 inside the mounting groove 15. The stepped shape of the mounting groove 15 makes it easy to press the blade plate 8 after the clamping plate 4 and the top plate 5 are fixedly connected. This makes it easy to connect the blade plate 8, the top plate 5 and the clamping plate 4 into one unit, which is convenient for vertical movement driven by the moving template of the external film cutting equipment. This allows the moving template to move together to perform die cutting on the film products. The above structure is more stable and has higher structural strength, avoiding deformation.

[0025] This multi-blade die for die-cutting multi-layer film products requires the following steps:

[0026] 1) During installation, install the adhesive plate 13 on the top surface of the mounting platform 7;

[0027] 2) Install the cutter plate 8 inside the mounting slot 15, and at the same time install the clamping plate 4 on the top surface of the top plate 5, and lock it with four bolts 10;

[0028] 3) Install the connecting tape inside the multiple tape mounting slots 14 respectively;

[0029] 4) Connect the limiting pins 2 to the inside of the four limiting holes 12 respectively, so that the top plate 5 and the top plate 1 are stacked;

[0030] 5) Remove the release paper from the multiple connecting tapes 3, and place the bottom plate 1 and the top plate 5 together inside the die-cutting equipment for film cutting.

[0031] In summary, when used by the user, a base plate 1 and a top plate 5 are provided. The top plate 5 has a mounting groove 15 in the middle, and a cutting tool plate 8 is installed inside it. The clamping plate 4 is fixedly connected to the top plate 5 by bolts 10, and clamps the cutting tool plate 8 and the die-cutting blade 6. At the same time, a mounting platform 7 is provided on the top surface of the base plate 1, which makes the top plate 5 and the base plate 1 have better structural strength, stronger shear resistance and deformation resistance, avoids deformation, and ensures the smooth progress of the film cutting process. By setting four limiting pins 2, which cooperate with the limiting holes 12 on both sides of the base plate 1, the precision of the cooperation between the base plate 1 and the template 5 is facilitated during the film cutting process, making the film cutting process more accurate and effectively solving the problems existing in the prior art.

[0032] 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 multi-blade die for die-cutting multilayer film products, characterized in that: The base plate (1) has an upward-protruding mounting platform (7) on the top surface of the base plate (1), and a rubber plate (13) is fixedly mounted on its top surface. The top surface of the base plate (1) is provided with a top plate (5), and a stepped mounting groove (15) is opened in the middle of the top plate (15). A cutting tool plate (8) is installed inside the mounting groove (15), and a die-cutting blade (6) is installed in the middle of the cutting tool plate (8). A pressing plate (4) is installed on the top surface of the top plate (5), and a protrusion (9) is formed by the downward-protruding middle of the bottom surface of the pressing plate (4), which presses the cutting tool plate (8) and the die-cutting blade (6) together.

2. A multi-blade die for die-cutting multilayer film products according to claim 1, characterized in that: Limiting holes (12) are provided on both sides of the bottom plate (1), and limiting pins (2) are installed on both sides of the bottom surface of the top plate (5).

3. A multi-blade die for die-cutting multilayer film products according to claim 2, characterized in that: The bottom surface of the base plate (1) and the top surface of the pressing plate (4) are provided with multiple tape mounting slots (14), and connecting tape (3) is installed inside the multiple tape mounting slots (14).

4. A multi-blade die for die-cutting multilayer film products according to claim 3, characterized in that: The top plate (5) has stepped holes (11) at the edges of the four corners of the bottom surface. Each of the four stepped holes (11) is equipped with a connecting bolt (10). The four connecting bolts (10) pass through the stepped holes (11) and are threadedly connected to the clamping plate (4).

5. A multi-blade die for die-cutting multilayer film products according to claim 4, characterized in that: The four sides of the cutter plate (8) are stepped, which fits into the inner wall of the mounting groove (15).