Punching needle structure of punch die
By introducing a slanted and flat cutting edge design into the punch structure of the Punch mold, and by incorporating slanted punching into the punch design, the punching and cutting problems in the existing technology are solved, resulting in better punching effect and service life.
Patent Information
- Application Number
- CN202422686154.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-05
AI Technical Summary
The punches in existing punch molds cause the product to be too thick when punching multi-layer flexible printed circuit boards (FPCs), resulting in displacement and bending deformation. Furthermore, the shearing force pulls out burrs from the inner layer of the plastic, affecting product quality and processing efficiency.
Design a punch structure for a punch mold, with a slanted cutter and a flat cutter at the punch end. The slanted cutter has an inclination angle of 45° and occupies no less than 1/2 of the punch end area. Its height does not exceed the width. SKH-9 steel is used to ensure gradual shearing under stress.
It effectively reduces the simultaneous stress around the cutting edge. The oblique cutting edge cuts off the forming edge first, and the flat cutting edge cuts off the waste edge, thus solving the problem of glue residue generation and ensuring product forming quality and processing efficiency.
Smart Images
Figure CN223617887U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mold punch technology, and more specifically, to a punch structure for molds. Background Technology
[0002] In the context of punch molds, "Punch" usually refers to a punch (also known as a punch head, punch pin, male die, upper die, etc.). A punch is a part in a mold used to shape the inner surface of a product; that is, a part whose working surface is its outer shape. It is the convex working part in the mold that directly forms the punched part.
[0003] The punch design of the existing punch mold is a flat blade, which puts force on all four sides of the punched product. Especially when punching FPC multilayer flexible boards, the FPC multilayer flexible boards are relatively thick. During shearing, they are subjected to large lateral extrusion forces, resulting in displacement and bending deformation. The cross-section of the product is pulled by non-shear forces, resulting in burrs on the inner layer of the rubber, which affects product quality and processing efficiency.
[0004] In view of this, this application aims to provide a punch structure for a punch mold to better solve the above-mentioned technical problems. Summary of the Invention
[0005] The purpose of this application is to provide a punch structure for a punch mold, which can solve the technical problem of rubber filament generation during punching in a punch mold.
[0006] This application provides a punch structure for a punch mold, including a punch body, the top of which is a punching end, and the punching end is provided with a slanted cutting edge and a flat cutting edge.
[0007] Furthermore, the tilt angle of the beveled blade is set to 45°.
[0008] Furthermore, the punched end is square.
[0009] Furthermore, the bottom surface of the oblique cutting edge occupies no less than 1 / 2 of the area of the punching end.
[0010] Furthermore, the height of the oblique cutting edge does not exceed the width of the punching end.
[0011] Furthermore, the cross-section of the oblique blade in the height direction is triangular.
[0012] Furthermore, the punch body is made of SKH-9 steel.
[0013] The beneficial effects of this utility model are:
[0014] The punch structure provided by this utility model includes a punch body, the top of which is set as a punching end. The punching end is provided with a slanted blade and a flat blade. This utility model has a simple structure and reasonable design. By setting the punching end with a slanted blade and a flat blade, the material being cut is subjected to a gradual force during punching, which can reduce the simultaneous force around the blade. The slanted blade first cuts off the forming edge, and the flat blade then cuts off the waste edge on the other side, thereby effectively solving the problem of glue string generation and ensuring the forming quality of the punched product. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 These are schematic diagrams of the structure in some embodiments of this utility model;
[0017] Figure 2 for Figure 1 A magnified view of a portion of point A;
[0018] Figure 3 for Figure 1 A structural diagram from another perspective.
[0019] The reference numerals in the attached figures are as follows:
[0020] 1. Punch body, 2. Punch end, 3. Angled blade, 4. Flat blade. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] See Figures 1-3 As shown, the punch structure of the punch mold described in this embodiment includes a punch body 1, the top of the punch body 1 is a punch end 2, and the punch end 2 is provided with a slanted cutting edge 3 and a flat cutting edge 4.
[0028] This embodiment has a simple structure and reasonable design. By setting the punching end 2 as a slanted blade 3 and a flat blade 4, the material is subjected to gradual force during punching, which can reduce the simultaneous force around the blade. The slanted blade 3 cuts off the forming edge first, and the flat blade cuts off the waste edge on the other side, thereby effectively solving the problem of glue string generation and ensuring the forming quality of the punched product.
[0029] In some embodiments, see Figure 3 As shown, the tilt angle of the oblique blade 3 is set to 45°.
[0030] In this embodiment, the oblique cutting edge 3 is specifically shown to have an inclination angle of 45°, so as to effectively cut off the forming edge during punching.
[0031] In some embodiments, the punched end 2 is square.
[0032] Specifically, the bottom surface of the oblique cutting edge 3 occupies no less than 1 / 2 of the area of the punching end 2.
[0033] Specifically, the height of the oblique cutting edge 3 does not exceed the width of the punching end 2.
[0034] Specifically, see Figure 3 As shown, the cross-section of the oblique blade 3 in the height direction is triangular.
[0035] In this embodiment, by setting the area occupied by the oblique cutter 3 at the punching end 2, setting the height of the oblique cutter 3, and limiting the cross-sectional shape of the oblique cutter 3 in the height direction, the shape and size of the oblique cutter 3 are made appropriate, the structure is stable, and thus the punching effect and service life are ensured.
[0036] In some embodiments, the punch body 1 is made of SKH-9 steel.
[0037] In this embodiment, the punch body 1 is made of SKH-9 steel with a hardness of HRC64°, which is higher than that of DC53 steel used in the prior art with a hardness of HRC58°. By improving the hardness of the material, the problems of low service life and easy passivation of the punch body 1 are solved, and better punching processing is achieved.
[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A punch structure for a punch mold, characterized in that: Includes a punch body, the top of which is set as a punch end, and the punch end is provided with a slanted blade and a flat blade; The inclination angle of the beveled blade is set to 45°. The punched end is square; Wherein, the bottom surface of the oblique cutting edge occupies not less than 1 / 2 of the area of the punching end; Wherein, the height of the oblique cutting edge does not exceed the width of the punching end; The cross-section of the oblique blade along its height direction is triangular; The punch body is made of SKH-9 steel.