Cutting die

Abstract

The utility model provides a cutting die which comprises an upper stamping assembly and a lower tool bit assembly, the upper stamping assembly corresponds to the lower tool bit assembly and is matched with the lower tool bit assembly to cut materials, the lower tool bit assembly comprises a lower stripping block, a center groove is formed in the inner side of the lower stripping block, a waste discharging piece is arranged in the center groove, and the waste discharging piece is matched with the lower stripping block. The lower stripping block is provided with tool bits, the tool bits are distributed in the peripheral direction of the waste discharging piece, and the tool bits incline by a certain angle in the direction close to the waste discharging piece so that cut materials can have a certain angle in the peripheral direction; by innovatively designing a cooperative structure of the inclined tool bit and the central waste discharging piece, efficient waste discharging and angled cutting are synchronously achieved in single-time punching, and the machining efficiency and the finished product quality are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a cutting mold. Background Technology

[0002] In the field of precision machining of materials such as metal sheets and plastic products, stamping and cutting dies are core processing equipment. Traditional cutting dies mainly adopt a vertical punching structure, in which the upper die punch and the lower die cutting edge directly press against each other to complete the cutting. This structure has three significant defects: (1) Scrap material is easy to accumulate in the die cavity, causing the die to jam and requiring frequent shutdowns for cleaning; (2) Burrs are easy to appear on the edges of the material produced by vertical cutting, and secondary grinding increases costs; (3) It cannot meet the requirements of angled cutting, limiting the application scenarios.

[0003] To improve waste removal, existing technologies propose adding a spring ejector pin structure to the lower die. However, the ejector pin is prone to wear and can only achieve vertical ejection, leaving residues for sticky materials (such as rubber). Another solution uses a spiral chip removal groove design, but this reduces the strength of the cutting head. For bevel cutting, current methods often employ step-by-step processing (vertical cutting followed by bending), leading to complex processes and loss of precision.

[0004] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] To address the technical challenges of simultaneously achieving efficient waste removal and angled cutting in a single stamping process, this invention proposes a cutting die. Through an innovative design, a collaborative structure between the inclined cutter head and the central waste discharge part is created, enabling simultaneous efficient waste removal and angled cutting in a single stamping process, significantly improving processing efficiency and finished product quality.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] On one hand, this utility model provides a cutting mold, including: an upper stamping assembly and a lower cutting head assembly. The upper stamping assembly and the lower cutting head assembly correspond to and cooperate with each other to cut materials. The lower cutting head assembly includes: a lower stripping block. The inner side of the lower stripping block is provided with a central groove. A waste discharge part is provided in the central groove. A cutting head is provided on the lower stripping block. The cutting head is distributed along the outer circumference of the waste discharge part. The cutting head is inclined at a certain angle toward the waste discharge part so that the circumference of the cut material has a certain angle.

[0008] This utility model proposes a cutting mold that, through an innovative design of a coordinated structure between an inclined cutter head and a central waste discharge part, simultaneously achieves efficient waste discharge and angled cutting in a single stamping process, significantly improving processing efficiency and finished product quality.

[0009] As a preferred technical solution, the upper stamping assembly includes: an upper punch and a waste discharge component. The upper punch has a waste discharge component setting groove. One end of the waste discharge component passes through the waste discharge component setting groove and is correspondingly set with the waste discharge hole on the waste discharge component.

[0010] As a preferred technical solution, a template is provided on the outer side of the upper punch, and an upper clamping plate is provided on the template. The other end of the waste discharge component passes through the upper clamping plate.

[0011] As a preferred technical solution, the upper clamping plate is provided with an upper pad plate, and the upper pad plate is provided with an upper mold base.

[0012] As a preferred technical solution, a stripping plate is provided on the outer side of the lower stripping block, the lower stripping block is disposed on the first lower clamping plate, the stripping plate is disposed correspondingly to the first lower clamping plate, a clamping block is provided on the first lower clamping plate, and the waste discharge component passes through the clamping block.

[0013] As a preferred technical solution, the first lower clamping plate is disposed on the lower pad, the lower pad is disposed on the lower mold base, and the lower mold base is further provided with a second lower clamping plate, which is disposed on one side of the lower pad.

[0014] As a preferred technical solution, an inner guide post assembly is provided between the second lower clamping plate and the release plate, one end of the inner guide post assembly is connected to the second lower clamping plate, and the other end of the inner guide post assembly is connected to the release plate.

[0015] As a preferred technical solution, an outer guide post assembly is provided between the lower mold base and the upper mold base. The outer guide post assembly is provided with an elastic element. One end of the outer guide post assembly is connected to the lower mold base, and the other end of the outer guide post assembly is connected to the upper mold base.

[0016] As a preferred technical solution, the outer guide post assembly includes: a first outer guide post assembly and a second outer guide post assembly, wherein the first outer guide post assembly and the second outer guide post assembly are arranged along the diagonal of the upper mold base and the lower mold base.

[0017] As a preferred technical solution, the stripper plate is provided with a feed trough and a discharge trough, which are respectively arranged on both sides of the lower stripper block.

[0018] The cutting mold provided by this utility model has the following beneficial effects:

[0019] 1) The cutting mold provided by this utility model, through the innovative design of the coordinated structure of the inclined cutter head and the central waste discharge part, can simultaneously achieve efficient waste discharge and angled cutting in a single stamping, which significantly improves processing efficiency and finished product quality;

[0020] 2) The present invention provides a cutting mold in which the cutting head is tilted at a certain angle toward the direction of the waste discharge part. Through the superposition of plastic deformation of the material during the stamping process, the material after cutting forms a stable cutting angle of 45°±2° in the circumference. This angle makes the cutting surface form a full circumferential light refraction barrier, which meets the light protection requirements of optical devices (test standard ISO10110-7).

[0021] The cutter heads are distributed along the outer periphery of the waste discharge component, and the cutter heads are tilted at a certain angle toward the waste discharge component. The outer periphery distribution of the cutter heads forms a "cutting edge to cutting back" arrangement to ensure that the center of gravity of the waste is always located in the discharge channel, preventing machine stoppage caused by material jamming. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a cutting mold provided by this utility model;

[0023] Figure 2 This is a structural schematic diagram of a cutting mold from another perspective provided by this utility model;

[0024] Figure 3 A schematic diagram of the structure of the upper stamping assembly and the lower cutting head assembly in a cutting mold provided by this utility model;

[0025] Figure 4 Another structural schematic diagram of the upper stamping assembly and lower cutting head assembly in a cutting mold provided by this utility model;

[0026] Figure 5 A schematic diagram of the upper stamping component in a cutting mold provided by this utility model;

[0027] Figure 6 A schematic diagram of the structure of the lower cutter head assembly in a cutting mold provided by this utility model;

[0028] Among them, 1-upper stamping assembly; 2-lower cutter head assembly; 3-upper punch; 4-scrap discharge part; 5-lower stripper block; 6-scrap discharge part; 7-cutter head; 8-scrap discharge hole; 9-template; 10-upper clamping plate; 11-upper backing plate; 12-upper mold base; 13-stripping plate; 14-first lower clamping plate; 15-lower backing plate; 16-lower mold base; 17-second lower clamping plate; 18-inner guide post assembly; 19-outer guide post assembly; 20-feed groove; 21-discharge groove; 22-elastic component. Detailed Implementation

[0029] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0030] like Figures 1-6 As shown, this utility model provides a cutting mold, including: an upper stamping assembly 1 and a lower cutting head assembly 2. The upper stamping assembly 1 and the lower cutting head assembly 2 correspond to and cooperate with each other to cut materials. The lower cutting head assembly 2 includes: a lower stripping block 5. The lower stripping block 5 has a central groove on its inner side. A waste discharge part 6 is provided in the central groove. A cutting head 7 is provided on the lower stripping block 5. The cutting head 7 is distributed along the outer circumference of the waste discharge part 6. The cutting head 7 is inclined at a certain angle toward the waste discharge part 6 so that the circumference of the cut material has a certain angle.

[0031] This utility model proposes a cutting mold that, through an innovative design of a coordinated structure between an inclined cutter head and a central waste discharge part, simultaneously achieves efficient waste discharge and angled cutting in a single stamping process, significantly improving processing efficiency and finished product quality.

[0032] Preferably, such as Figures 3-5 As shown, the upper stamping assembly 1 includes an upper punch 3 and a waste discharge component 4. The upper punch 3 has a waste discharge component setting groove. One end of the waste discharge component 4 passes through the waste discharge component setting groove and is correspondingly set with the waste discharge hole 8 on the waste discharge component 6. During the stamping process, the waste discharge component 4 directly acts on the waste discharge hole 8, and quickly discharges the waste generated by cutting (such as Mylar chips) to the outside of the mold through mechanical pushing or pressure transmission, so as to avoid waste retention causing cutting head blockage or cutting surface damage, and ensure the continuity and stability of processing.

[0033] Preferably, such as Figures 1-2 As shown, a template 9 is provided on the outer side of the upper punch 3, and an upper clamping plate 10 is provided on the template 9. The other end of the waste discharge component 4 passes through the upper clamping plate 10. The upper clamping plate 10 serves as a rigid support structure, precisely fixing the movement trajectory of the waste discharge component 4 to prevent it from deviating during the stamping process. This ensures that the waste discharge component 4 is always precisely aligned with the waste discharge hole 8 of the lower cutter head assembly 2, avoiding waste blockage or damage to the cutting surface caused by misalignment. The template 9 and the upper clamping plate 10 form a multi-layer buffer structure, effectively absorbing stamping vibration, protecting the waste discharge component 4 from lateral deformation, and maintaining the cutting stability of the tilting cutter head.

[0034] Preferably, such as Figures 1-2 As shown, the upper clamping plate 10 is provided with an upper pad plate 11, and the upper pad plate 11 is provided with an upper die holder 12; to distribute the stamping load; the upper die holder 12 absorbs high-frequency vibration by itself, reducing the rigid impact of the punch press on the die; the upper pad plate 11 resists the risk of the upper die holder 12 being crushed and deformed due to the back pressure of the upper stamping assembly 1.

[0035] Preferably, such as Figures 1-2 As shown, a stripper plate 13 is provided on the outer side of the lower stripper block 5. The lower stripper block 5 is disposed on the first lower clamping plate 14, and the stripper plate 13 is disposed correspondingly to the first lower clamping plate 14. A clamping block is provided on the first lower clamping plate 14, and the waste discharge component 6 passes through the clamping block. The clamping block precisely constrains the movement trajectory of the waste discharge component 6 to prevent it from deviating during the stamping process, ensuring that the waste discharge hole 8 and the waste discharge component 4 are always aligned. When the lower stripper block 5 moves downward, the stripper plate 13 is pressed down in conjunction with it, pushing the waste discharge component 6 to push the waste into the waste discharge hole 8. When the upper die base 12 returns, the stripper plate 13 relies on the elastic deformation of the elastic element 22 on the outer guide post assembly 19 to reset, driving the waste discharge component 6 to rebound synchronously, avoiding the waste from being carried back; thus achieving efficient discharge of waste.

[0036] Preferably, such as Figures 1-2 As shown, the first lower clamping plate 14 is disposed on the lower pad plate 15, the lower pad plate 15 is disposed on the lower mold base 16, and the lower mold base 16 is also provided with a second lower clamping plate 17, which is disposed on one side of the lower pad plate 15; the lower pad plate 15 buffers the stamping stress of the lower clamping plate and prevents the lower mold base 16 from being crushed and deformed; the lower mold base 16 absorbs vibration energy and reduces the impact of equipment impact on mold accuracy.

[0037] Preferably, such as Figures 1-2 As shown, an inner guide post assembly 18 is provided between the second lower clamping plate 17 and the stripper plate 13. One end of the inner guide post assembly 18 is connected to the second lower clamping plate 17, and the other end of the inner guide post assembly 18 is connected to the stripper plate 13. The inner guide post assembly 18 and the stripper plate 13 form a high-precision sliding fit, so that the stripper plate 13 moves in the vertical direction, preventing the deviation caused by lateral force during the stamping process, and synchronously guiding the alignment of the stripper plate 13 and the cutter head 7, avoiding material wrinkling or burrs on the cutting surface caused by uneven material pressing.

[0038] Preferably, such as Figures 1-2 As shown, an outer guide post assembly 19 is provided between the lower die base 16 and the upper die base 12. An elastic element 22 is provided on the outer guide post assembly 19. One end of the outer guide post assembly 19 is connected to the lower die base 16, and the other end of the outer guide post assembly 19 is connected to the upper die base 12. During the stamping process, the outer guide post assembly 19 forces the upper die base 12 to move from its initial position in the vertical direction to the die closing position, preventing lateral displacement caused by eccentric load during die closing. The elastic deformation of the elastic element 22 can ensure that the upper die base 12 springs back to its initial position after stamping.

[0039] Preferably, such as Figures 1-2As shown, the outer guide pillar assembly 19 includes: a first outer guide pillar assembly and a second outer guide pillar assembly, the first outer guide pillar assembly and the second outer guide pillar assembly being arranged along the diagonal of the upper mold base 12 and the lower mold base 16; the diagonal layout, through the combination of asymmetric constraints and elastic energy dissipation, reduces maintenance costs while ensuring mold closing accuracy.

[0040] Preferably, such as Figures 1-2 As shown, the stripper plate 13 is provided with a feed chute 20 and a discharge chute 21, which are respectively arranged on both sides of the lower stripper block 5. The feed chute 20 guides the raw material into the stamping station along a fixed trajectory to avoid blanking burrs or waste blockage caused by feeding deviation. The discharge chute 21 receives the stamped parts, which improves production efficiency.

[0041] like Figures 1-6 As shown, when the cutting mold is working, the material to be cut enters the station through the feed groove 20 on the stripper plate 13. When the upper mold base 12 is pressed downward, the diagonally arranged outer guide post assembly 19 absorbs the impact through the elastic element 22, and simultaneously corrects the concentricity of the upper stamping assembly 1 and the lower cutter head assembly 2. When the upper punch 3 is pressed, the cutter head 7 on the lower stripper block 5, which is tilted at a certain angle, performs a circumferential oblique cut on the material, forming an angled cut. At the same time, the waste material is subjected to shearing force and gathers towards the waste material discharge hole 8 on the waste material discharge component 6. At the same time, the waste material discharge component 4 presses down on the waste material discharge hole 8 on the waste material discharge component 6, and the waste material falls vertically through the waste material discharge hole 8, avoiding lateral impact. Splashing; the inner guide post assembly 18 (connecting the ejector plate 13 and the second lower clamping plate 17) guides the alignment of the ejector plate 13 and the cutter head 7, avoiding material wrinkling or burrs on the cutting surface caused by uneven pressing; after the cutting die finishes working, when the upper die base 12 rebounds based on the elastic element 22 on the outer guide post assembly 19, the ejector plate 9 resets through the inner guide post assembly 18, driving the waste discharge part 6 on the lower cutter head assembly 2 to rebound synchronously, avoiding waste back and achieving efficient waste discharge; through the innovative design of the coordinated structure of the inclined cutter head and the central waste discharge part, efficient waste discharge and angled cutting are achieved simultaneously in a single stamping, significantly improving processing efficiency and finished product quality.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A cutting mold, characterized in that, include: The upper stamping assembly and the lower cutter assembly correspond to and cooperate with each other to cut materials. The lower cutter assembly includes a lower stripping block, a central groove on the inner side of the lower stripping block, a waste discharge part in the central groove, and a cutter head on the lower stripping block. The cutter head is distributed along the outer circumference of the waste discharge part and is inclined at a certain angle toward the waste discharge part so that the cut material has a certain angle in the circumference.

2. The cutting mold according to claim 1, characterized in that, The upper stamping assembly includes an upper punch and a waste discharge component. The upper punch has a waste discharge component setting groove. One end of the waste discharge component passes through the waste discharge component setting groove and is correspondingly set with the waste discharge hole on the waste discharge component.

3. The cutting mold according to claim 2, characterized in that, The upper punch is provided with a template on its outer side, and an upper clamping plate is provided on the template. The other end of the waste discharge component passes through the upper clamping plate.

4. The cutting mold according to claim 3, characterized in that, The upper clamping plate is provided with an upper pad plate, and the upper pad plate is provided with an upper mold base.

5. The cutting mold according to claim 1, characterized in that, The lower stripping block is provided with a stripping plate on its outer side. The lower stripping block is disposed on the first lower clamping plate. The stripping plate is disposed in correspondence with the first lower clamping plate. The first lower clamping plate is provided with clamping blocks. The waste discharge component passes through the clamping blocks.

6. The cutting die according to claim 5, characterized in that, The first lower clamping plate is disposed on the lower pad, the lower pad is disposed on the lower mold base, and the lower mold base is also provided with a second lower clamping plate, which is disposed on one side of the lower pad.

7. The cutting die according to claim 6, characterized in that, An inner guide post assembly is provided between the second lower clamping plate and the release plate. One end of the inner guide post assembly is connected to the second lower clamping plate, and the other end of the inner guide post assembly is connected to the release plate.

8. The cutting die according to claim 6, characterized in that, An outer guide post assembly is provided between the lower mold base and the upper mold base. The outer guide post assembly is provided with an elastic element. One end of the outer guide post assembly is connected to the lower mold base, and the other end of the outer guide post assembly is connected to the upper mold base.

9. The cutting die according to claim 8, characterized in that, The outer guide post assembly includes a first outer guide post assembly and a second outer guide post assembly, wherein the first outer guide post assembly and the second outer guide post assembly are arranged along the diagonal lines of the upper mold base and the lower mold base.

10. The cutting die according to claim 5, characterized in that, The stripper plate is provided with a feed chute and a discharge chute, which are respectively arranged on both sides of the lower stripper block.

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