Pad cutter structure for die cutting of metal material
By employing a pad-die structure that combines a rubber adhesive section and an EVA foam section in the die-cutting process of metal materials, the problem of poor product edge caused by the low hardness of EVA foam is solved, thereby improving the product appearance and enhancing the durability of the die.
Patent Information
- Application Number
- CN202422986076.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the existing technology, EVA foam pads have low hardness and low density in die-cutting, resulting in poor product edges and easy deformation. They cannot effectively support the product, affecting the product appearance and die life.
A die-cutting blade structure for metal materials is designed, which combines a rubber adhesive part and an EVA foam part. The hardness of the rubber adhesive part is 55HB, and the hardness of the EVA foam part is 40HB. The rubber adhesive part is connected to the expansion connecting post of the EVA foam part through the notch of the rubber adhesive part to form a die-cutting blade cavity, thereby improving the problem of edge curling during product printing.
It improves the appearance quality of products, extends the service life of die-cutting molds, reduces product edge defects, and enhances the effect of die-cutting processing.
Smart Images
Figure CN223476071U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of die-cutting technology and relates to the die-cutting structure of metal materials. Background Technology
[0002] A rotary die-cutting machine, also known as a rotary cutting machine, hobbing machine, or circular die-cutting machine, fixes the workpiece on a worktable and then controls the movement of the spindle and cutter through a control system to cut the workpiece. Currently, when rotary die-cutting steel and aluminum sheets, the appearance of the product is usually improved by using EVA foam padding to support the cutter. However, EVA foam has low hardness and low density, and is easily deformed after being compressed during die-cutting, failing to provide support and resulting in poor product edges. Based on this, we designed a padding structure for die-cutting metal materials. Summary of the Invention
[0003] The purpose of this invention is to provide a pad structure for die-cutting of metal materials, so as to solve the problems mentioned in the background art.
[0004] The purpose of this utility model can be achieved through the following technical solution: a pad structure for die-cutting of metal materials, including a rubber adhesive part and an EVA foam part, wherein a notch is opened at the top of the rubber adhesive part, the EVA foam part is disposed inside the notch and connected to the rubber adhesive part, and a die-cutting blade cavity is provided at the top of the EVA foam part.
[0005] In the above-mentioned die-cutting pad structure for metal materials, an installation slot is provided on the inner side of the recess of the rubber adhesive part, and an expansion connecting post is provided at the bottom end of the EVA foam part, and the expansion connecting post is connected to the installation slot.
[0006] In the above-mentioned die-cutting pad structure for metal materials, the hardness of the rubber adhesive part and the hardness of the EVA foam part are 55HB and 40HB, respectively.
[0007] In the above-mentioned die-cutting pad structure for metal materials, the thickness of the rubber adhesive part and the thickness of the EVA foam part are 1.5 mm and 1.0 mm, respectively.
[0008] Compared with the prior art, the advantages of the padding structure for die-cutting of metal materials of this utility model are: by setting the combination of rubber adhesive part and EVA foam part, the problem of poor appearance of embossed edge is improved, the die is not easily damaged after padding, and the die life is extended to solve the problem of poor appearance. Attached Figure Description
[0009] Figure 1 This is a three-dimensional structural diagram of the pad knife structure for die-cutting of metal materials according to this utility model.
[0010] Figure 2This is a schematic diagram of the existing technology pad knife structure.
[0011] In the diagram, 1 is the rubber adhesive part; 2 is the EVA foam part; 3 is the die-cutting cavity; 4 is the expansion connecting column; and 5 is the mounting bayonet. Detailed Implementation
[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0013] like Figure 1 , Figure 2 As shown, the pad structure for die-cutting metal materials of this utility model includes a rubber adhesive part 1 and an EVA foam part 2. The top of the rubber adhesive part 1 has a notch, and the EVA foam part 2 is disposed inside the notch and connected to the rubber adhesive part 1. The top of the EVA foam part 2 is provided with a die-cutting cavity 3.
[0014] The hardness of the rubber adhesive part 1 and the hardness of the EVA foam part 2 are 55HB and 40HB, respectively; the thickness of the rubber adhesive part 1 and the thickness of the EVA foam part 2 are 1.5 mm and 1.0 mm, respectively.
[0015] In this design, to facilitate the assembly and connection of the EVA foam part 2, an installation slot 5 is provided on the inner side of the recess of the rubber adhesive part 1, and an expansion connecting post 4 is provided at the bottom of the EVA foam part 2, which is connected to the installation slot 5.
[0016] This solution can be used for stamping and die-cutting of metal materials such as copper sheets, steel sheets, and aluminum foil, improving product edge warping and abnormal embossing.
[0017] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A die-cutting pad structure for metal materials, comprising a rubber adhesive part (1) and an EVA foam part (2), characterized in that, The top of the rubber adhesive part (1) has a notch, the EVA foam part (2) is located inside the notch and connected to the rubber adhesive part (1), and the top of the EVA foam part (2) is provided with a die-cutting cavity (3).
2. The pad knife structure for die-cutting metal materials according to claim 1, characterized in that, The rubber adhesive part (1) has an installation slot (5) on the inner side of the recess, and the bottom end of the EVA foam part (2) has an expansion connecting post (4), which is connected to the installation slot (5).
3. The pad knife structure for die-cutting metal materials according to claim 1, characterized in that, The hardness of the rubber adhesive part (1) and the hardness of the EVA foam part (2) are 55HB and 40HB, respectively.
4. The pad knife structure for die-cutting metal materials according to claim 1, characterized in that, The thickness of the rubber adhesive part (1) and the thickness of the EVA foam part (2) are 1.5 mm and 1.0 mm, respectively.