Stamping die for flexible plates
By setting grooves of specific angles on the side wall of the die cavity of the stamping mold, the problem of difficult waste discharge during the stamping process is solved, and effective waste storage and product quality are achieved.
Patent Information
- Application Number
- CN202421343319.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
When existing stamping molds deal with fine structures and punching small windows, waste is difficult to discharge smoothly. They are often taken out by punching needles and remain on the surface of flexible boards, resulting in deformation, scratches or damage to the material, affecting product quality.
A stamping mold for flexible plates is designed, and two opposing first side walls are provided on the side walls of the die cavity, each side wall has a groove facing the inner depression and a shaft of the groove. At a specific angle to the center line of the side wall, the grooves formed guide from different angles and accommodate tiny punching waste.
Through this design, tiny punching waste can be firmly stuck in the mold, avoiding being taken out of the mold causing damage to the product, and improving punching quality and product qualification rate.
Smart Images
Figure CN222521550U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of stamping equipment manufacturing, in particular to a stamping die for flexible plates. Background Art
[0002] In modern manufacturing industry, stamping technology is widely used in the processing of flexible board materials, especially in the fields of electronics and automotive parts that require high precision and high efficiency. However, the stamping dies in the prior art face a common problem when processing fine structures, especially when punching small windows: due to the limitations of the inner cavity design of the die, the chip jamming area on the side wall is relatively narrow, resulting in the waste generated during the stamping process being difficult to discharge smoothly, and often being carried out by the punching needle and remaining on the surface of the flexible board. This problem not only affects the subsequent processes, but also becomes a major bottleneck in product quality control.
[0003] Specifically, the remaining tiny scraps will generate unnecessary additional pressure on the flexible sheet below as the upper template is closed forcefully in the next stamping cycle, which is likely to cause deformation, scratches, or even breakage of the material, directly leading to unqualified or even scrapped products. In severe cases, it will damage the mold itself, increase maintenance costs and production downtime. This phenomenon not only reduces production efficiency, but also poses a serious challenge to material utilization and yield, limiting the potential application of stamping technology in the manufacture of high-quality, high-density flexible board components.
[0004] Therefore, there is an urgent need for an innovative stamping die design scheme, which aims to optimize the die structure, effectively guide and quickly discharge the waste in the stamping process, reduce the probability of waste remaining on the workpiece surface, thereby avoiding material damage caused by secondary pressing, and improving the stability of flexible plate stamping processing and product qualification rate, to meet the growing high quality requirements of the precision manufacturing industry. Utility Model Content
[0005] The utility model aims to provide a method for solving the problem that the punching needle brings out waste materials during the punching process, causing damage to the surface of the flexible plate material.
[0006] In order to achieve the above-mentioned purpose of the utility model, one embodiment of the utility model provides a stamping die for flexible boards, the die includes a punch and a die matching the punch, the die has an inner cavity, wherein the side walls of the inner cavity include two first side walls arranged opposite to each other, each of the first side walls is provided with a groove recessed toward the inside of the first side wall, wherein the axial direction of the groove on one of the first side walls intersects with the center line of the first side wall in a clockwise direction to form a first acute angle, and the axial direction of the groove on the other first side wall intersects with the center line of the first side wall in a counterclockwise direction to form a second acute angle.
[0007] As a further improvement of an embodiment of the utility model, the die has a first end face and a second end face sequentially arranged along the stamping direction, and the groove passes through the die so that the groove forms an opening on the first end face and the second end face.
[0008] As a further improvement of an embodiment of the utility model, the side wall of the inner cavity also includes two second side walls arranged opposite to each other, the two second side walls are respectively connected between the two sides of the first side walls in the lateral direction, and the width of the first side wall is greater than the width of the second side wall.
[0009] As a further improvement of an embodiment of the utility model, the punch includes a punch needle, and during punching, the punch needle can be accommodated in the inner cavity.
[0010] As a further improvement of an embodiment of the utility model, when the punching needle is accommodated in the inner cavity, the distance between the side wall of the punching needle and the side wall of the inner cavity is 5% to 7% of the thickness of the punched flexible board.
[0011] As a further improvement of an embodiment of the utility model, the depth of the groove is half of the distance between the side wall of the punch needle and the side wall of the inner cavity.
[0012] As a further improvement of an embodiment of the utility model, the distance between the notch of the groove and the direction perpendicular to the axial direction of the die is 0.3-0.5 mm.
[0013] As a further improvement of an embodiment of the utility model, the angles of the first acute angle and the second acute angle are 30-40°.
[0014] As a further improvement of an embodiment of the utility model, the first acute angle and the second acute angle are equal.
[0015] As a further improvement of an embodiment of the utility model, the groove includes a groove bottom and groove side walls arranged perpendicular to the groove bottom, wherein the orthographic projection of the groove bottom of the groove on one first side wall on the side wall is symmetrical with the orthographic projection of the groove bottom of the groove on another first side wall on the side wall.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] By arranging grooves on two first side walls opposite to each other in the inner cavity of the punch, and making the center line of each first side wall form a specific angle with the axial direction of the groove arranged thereon, the grooves on the two first side walls guide and accommodate tiny punching wastes to fall into the grooves from different angles, so that the tiny punching wastes can be firmly stuck in the concave mold plate and cannot be brought out of the concave mold to cause crushing damage to the product, thereby improving the punching quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic structural diagram of a stamping die for flexible boards in one embodiment of the utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of a local section in the top view;
[0020] Figure 3 for Figure 2 Schematic diagram of the cross section in the mid-MM direction;
[0021] Figure 4 for Figure 2 Schematic diagram of the cross section along the NN direction;
[0022] Figure 5 for Figure 2 Enlarged schematic diagram of the X in the middle.
[0023] The above description of the drawings includes the following reference numerals:
[0024] 1. Punch; 11. Punch needle;
[0025] 2. Concave mold; 21. Inner cavity; 211. First side wall; 212, 213. Grooves; 214. Second side wall; 22. First end face; 23. Second end face.
[0026] 3. Punching waste; a. First acute angle; b. Second acute angle; Direction A: Punching direction. DETAILED DESCRIPTION
[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0029] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.
[0030] In order to solve the problem that the punching needle brings out waste materials during the punching process in the prior art, resulting in damage to the surface of flexible plate materials, the utility model provides a punching die for flexible plates.
[0031] refer to Figure 1-5 As shown, the utility model provides a stamping die for flexible boards, the die includes a punch 1 and a die 2 matched with the punch, the die 2 has an inner cavity 21, the side wall of the inner cavity 21 includes two first side walls 211 arranged opposite to each other, each of the first side walls 211 is provided with a groove recessed toward the inside of the first side wall, the axial direction of the groove 212 on one of the first side walls 211 intersects with the center line of the first side wall 211 in a clockwise direction to form a first acute angle, corresponding to Figure 3 As shown, the first acute angle is angle a in the figure; the axial direction of the groove 213 on the other first side wall 211 intersects with the center line of the first side wall counterclockwise to form a second acute angle, corresponding to Figure 4 As shown, the second acute angle is angle b in the figure.
[0032] It should be noted that, combined with Figure 1 As shown in the example, the direction of the z-axis is parallel to the centerline direction of the first side wall 211 and is also parallel to the axial direction of the die 2. Figure 1 In the figure, direction A indicates the punching direction of punch 1.
[0033] Through the above-mentioned arrangement, by arranging grooves on the two first side walls 211 opposite to the inner cavity 21 of the punch, and making the center line of each first side wall form a specific angle with the axial direction of the groove arranged thereon, the grooves located on the two first side walls 211 respectively accommodate and guide the tiny punching waste 3 from different angles, so that the tiny punching waste 3 can be firmly stuck in the concave mold plate and cannot be brought out of the concave mold 2 to cause crushing damage to the product, thereby improving the punching quality.
[0034] Furthermore, the die 2 has a first end face 22 and a second end face 23 sequentially arranged along the stamping direction, and the groove penetrates the die 2 so that the groove forms openings on the first end face 22 and the second end face 23. With such an arrangement, the groove on the first side wall 211 can be opened toward the punch 1, and tiny punching waste 3 can easily fall into the groove during the stamping process.
[0035] Specifically in this embodiment, refer to Figure 3 , 4. The groove passes through the die 2 and can form openings on the first end face 22 and the second end face 23 respectively. With this arrangement, the tiny punching waste 3 falling into the groove can fall from the groove to the bottom of the die 2.
[0036] Further, refer to Figure 2 As shown in , the side wall of the inner cavity further includes two second side walls 214 arranged opposite to each other, the two second side walls 214 are respectively connected between the two sides of the first side walls 211 in the lateral direction, and the width of the first side wall 211 is greater than the width of the second side wall 214. Figure 2 That is, the width of the first side wall 211 in the y-axis direction is greater than the width of the second side wall 214 in the x-axis direction.
[0037] The groove is arranged on the wider side wall. It can be understood that the wider side wall is easy to produce more punching waste 3 during the punching process. Such arrangement is conducive to more tiny punching waste 3 falling into the groove during the punching process.
[0038] refer to Figure 1 As best shown in FIG. 1 , the punch 1 includes a punch pin 11 which can be accommodated in the inner cavity 21 during punching.
[0039] Furthermore, when the punching needle 11 is accommodated in the inner cavity 21, the distance between the side wall of the punching needle 11 and the side wall of the inner cavity 21 is 5% to 7% of the thickness of the punched flexible board, corresponding to Figure 2 That is, the distance d is 5% to 7% of the thickness of the flexible board. Such a configuration can ensure that when the punching needle 11 is accommodated in the inner cavity 21, and in the process of the punching needle 11 punching downward, the flexible board can be punched off without generating burrs.
[0040] Furthermore, the depth of the groove is half the distance between the side wall of the punch needle 11 and the side wall of the inner cavity 21, corresponding to Figure 5 As shown in , that is, the depth of the groove is d / 2. With this arrangement, it is not easy to form burrs inside the groove during the stamping process.
[0041] Furthermore, the distance between the notch of the groove and the axial direction of the die 2 is 0.3-0.5 mm. This arrangement can ensure that tiny punching waste enters the groove from the notch, and on the other hand, during the stamping process, the distance can ensure that the blade on the die can effectively cut the flexible board to form a predetermined part without forming burrs at the notch of the groove.
[0042] In this embodiment, reference Figure 3, as shown in FIG. 4 , the angles of the first acute angle and the second acute angle are 30° to 40°. Figure 3 As shown in the figure, the first acute angle is shown as a in the figure, that is, the angle of a is 30~40°; combined with Figure 4 As shown in , the second acute angle is shown as b in the figure, that is, the angle of b is 30~40°.
[0043] With such arrangement, during the stamping process, it can be ensured that the tiny punching waste 3 slides downward along the groove wall located on the lower side of the groove, and the groove wall located on the upper side of the groove can limit the position of the tiny punching waste 3 and generate pressure, thereby preventing the tiny punching waste 3 from following the punch needle 11 out of the inner cavity 21 and falling onto the first end face 22 of the die 2 when the punch needle 11 is withdrawn from the mold.
[0044] In this embodiment, the first acute angle a and the second acute angle b are optionally equal. With such an arrangement, it is relatively convenient to make tiny punching waste fall into the groove from both sides of the punching needle 11.
[0045] Preferably, the groove includes a groove bottom and a groove sidewall arranged perpendicular to the groove bottom, wherein the orthographic projection of the groove bottom of the groove 212 on one first sidewall 211 on the sidewall is symmetrical to the orthographic projection of the groove bottom of the groove 213 on the other first sidewall 211 on the sidewall. In this way, the groove 212 and the groove 213 are arranged to have substantially the same volume and inclination, so that the tiny punching waste 3 can be conveniently dropped into the groove 212 and the groove 213 from both sides of the punching needle 11, avoiding the problem that the punching waste 3 on both sides of the punching needle 11 cannot fall into the groove due to the different volumes of the grooves.
[0046] In summary, the embodiments of the present invention achieve the following technical effects:
[0047] By arranging grooves on two first side walls 211 opposite to each other in the inner cavity 21 of the punch, and making the center line of each first side wall form a specific angle with the axial direction of the groove arranged thereon, the grooves on the two first side walls 211 guide and accommodate tiny punching waste from different angles respectively, so that the tiny punching waste can be firmly stuck in the concave mold plate and cannot be brought out of the concave mold to cause crushing damage to the product, thereby improving the punching quality.
[0048] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.
[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A stamping die for flexible boards, the die comprising a punch and a concave die matching the punch, the concave die having an inner cavity, characterized in that: The side walls of the inner cavity include two first side walls arranged opposite to each other, each of the first side walls is provided with a groove recessed toward the inside of the first side wall, wherein the axial direction of the groove on one of the first side walls intersects with the center line of the first side wall in a clockwise direction to form a first acute angle, and the axial direction of the groove on the other first side wall intersects with the center line of the first side wall in a counterclockwise direction to form a second acute angle.
2. The stamping die for flexible boards according to claim 1, characterized in that: The concave die has a first end face and a second end face sequentially arranged along the stamping direction, and the groove penetrates the concave die so that the groove forms an opening on the first end face and the second end face.
3. The stamping die for flexible boards according to claim 1, characterized in that: The side wall of the inner cavity further includes two second side walls arranged opposite to each other, the two second side walls are respectively connected between two sides of the two first side walls in a lateral direction, and the width of the first side wall is greater than the width of the second side wall.
4. The stamping die for flexible boards according to claim 1, characterized in that: The punch comprises a punch pin, and during punching, the punch pin can be accommodated in the inner cavity.
5. The stamping die for flexible boards according to claim 4, characterized in that: When the punching needle is accommodated in the inner cavity, the distance between the side wall of the punching needle and the side wall of the inner cavity is 5% to 7% of the thickness of the punched flexible board.
6. The stamping die for flexible boards according to claim 5, characterized in that: The depth of the groove is half of the distance between the side wall of the punch needle and the side wall of the inner cavity.
7. The stamping die for flexible boards according to claim 6, characterized in that: The distance between the notches of the groove and the direction perpendicular to the axial direction of the die is 0.3-0.5 mm.
8. The stamping die for flexible boards according to claim 1, characterized in that: The angles of the first acute angle and the second acute angle are 30-40°.
9. The stamping die for flexible boards according to claim 1, characterized in that: The first acute angle and the second acute angle are equal.
10. The stamping die for flexible boards according to claim 1, characterized in that: The groove comprises a groove bottom and groove side walls arranged perpendicular to the groove bottom, wherein an orthographic projection of the groove bottom on one first side wall on the side wall is symmetrical with an orthographic projection of the groove bottom on another first side wall on the side wall.