INS punching die capable of optimizing side knife interface section difference
By optimizing the side blade connection of the INS punching die through modular design and rotating mechanism, the problems of insufficient forming accuracy and adaptability are solved, and high-precision diaphragm cutting effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JUNYI PRECISION MOLD SUZHOU CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-24
AI Technical Summary
Existing INS punching dies suffer from several drawbacks during the punching process. The forming accuracy is highly dependent on process parameters, and the diaphragm is easily affected by the curvature of the material, resulting in differences in the height of the cutting edges and burrs. The structure also lacks self-adaptive capability.
It adopts a modular design, with the side blades using an oblique cutting and coplanar intersection structure, combined with a rotating mechanism to reduce impact force through mechanical decomposition, achieve dynamic angle adjustment, double blade coplanar calibration, and a stepped blade design for roughing and fine cutting.
It improves punching accuracy, reduces the height difference at the junction, eliminates burrs, optimizes the punching pressure curve, and achieves high-precision step control.
Smart Images

Figure CN224544802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of punching die technology, and in particular to an INS punching die that can optimize the step difference at the side blade intersection. Background Technology
[0002] INS punching dies are key tooling equipment used in the INS process. They are mainly used to precisely punch the PVC film after vacuum forming to form the required appearance contours, holes, slots, and other structures of the product. They are widely used in industries such as automotive interiors and electronics. In INS punching dies, many vacuum-formed INS films require multiple side blades to punch the film's appearance contours. However, conventional side blades use a horizontal cutting method to complete the side blade punching action. The multi-side blade horizontal cutting structure has significant shortcomings in INS punching dies. First, the forming accuracy is highly dependent. The vacuum forming of the film is easily affected by process parameters, and the actual size often deviates from the theoretical design value. The horizontal cutting structure cannot adapt to this error, which will lead to height differences in the film at the blade intersection. Second, the structure has poor self-adaptability. During horizontal punching, the movement trajectory of the side blades is fixed and cannot adjust the punching angle according to the curvature or undulation of the film surface. Uneven force can easily cause the film to tear or be squeezed, resulting in burrs. Utility Model Content
[0003] The purpose of this invention is to provide an INS punching die that can optimize the step difference at the side blade intersection, so as to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an INS punching die that can optimize the step difference of the side blade intersection, including a lower die base, on which a main template is fixedly connected, and a vertical guide hole is provided on the upper surface of the lower die base.
[0005] As a further technical solution of this utility model, a horizontal transmission component is provided at both ends of the main template. The horizontal transmission component is provided with a horizontal blade surface, and a horizontal right blade and a horizontal left blade are fixedly connected to the two ends of the horizontal transmission component, respectively.
[0006] As a further technical solution of this utility model, a first T-shaped groove is provided on one outer wall of the horizontal left blade, and a horizontal guide hole is provided on one outer surface of the horizontal left blade.
[0007] As a further technical solution of this utility model, a third T-shaped groove is provided on one outer wall of the horizontal right-side blade.
[0008] As a further technical solution of this utility model, a rotary transmission component is provided on one side of the main template, and a buffer groove is provided on the rotary transmission component.
[0009] As a further technical solution of this utility model, a rotating side blade is fixedly connected to one side of the outer wall of the rotating transmission component, a second T-shaped groove is provided on one side of the outer wall of the rotating side blade, and a limit groove is provided on one side of the outer surface of the rotating side blade.
[0010] As a further technical solution of this utility model, the rotary transmission component is provided with a rotary cutting edge surface.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model adopts a modular design. This INS punching die, which can optimize the step difference at the side blade interface, breaks through the limitations of traditional horizontal punching through the oblique cutting of the side blade and the coplanar intersection structure. The side blade adopts a dynamically adjustable angle, which greatly reduces the vertical impact force through mechanical decomposition, thereby suppressing the plastic deformation of the material from the root. At the same time, a rotating mechanism is adopted to match the characteristics of different materials in real time. Moreover, the double blades are calibrated through coplanarity to ensure that the height difference of the intersection surface is reduced. The blade adopts a stepped cutting edge design to complete roughing and fine cutting in stages, effectively eliminating burrs. The punching pressure curve is optimized in real time. Through the innovation of oblique cutting and coplanarity in one, high-precision step difference control is achieved. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] In the diagram: 1. Lower mold base; 2. Main template; 3. Horizontal right-side cutter; 4. Horizontal left-side cutter; 5. First T-slot; 6. Rotating side cutter; 7. Limiting groove; 8. Second T-slot; 9. Rotating cutter face; 10. Horizontal cutter face; 11. Vertical guide hole; 12. Horizontal guide hole; 13. Third T-slot; 14. Horizontal transmission component; 15. Rotary transmission component; 16. Buffer groove. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] Please see the appendix Figure 1 This utility model provides an embodiment of an INS punching die that optimizes the step difference at the side blade intersection. It includes a lower die base 1, a main die plate 2 fixedly connected to the lower die base 1, and a vertical guide hole 11 on the upper surface of the lower die base 1. Horizontal transmission components 14 are provided at both ends of the main die plate 2, each with a horizontal blade edge 10. A horizontal right blade 3 and a horizontal left blade 4 are fixedly connected to the two ends of the horizontal transmission components 14, respectively, to cut into the material horizontally. A first T-groove 5 is provided on one outer wall of the horizontal left blade 4, and a horizontal guide hole 12 is provided on one outer surface of the horizontal left blade 4. The horizontal guide hole 12 allows for precise cutting. The mold is precisely positioned by a third T-groove 13 on the outer wall of one side of the horizontal right side cutter 3. A rotary transmission component 15 is provided on one side of the main template 2, and a buffer groove 16 is provided on the rotary transmission component 15 to adjust the cutting edge position of the rotary side cutter 6. The rotary side cutter 6 is fixedly connected to one side of the outer wall of the rotary transmission component 15, and a second T-groove 8 is provided on one side of the outer wall of the rotary side cutter 6. A limit groove 7 is provided on one side of the outer surface of the rotary side cutter 6 to ensure the movement accuracy of the mold. A rotary cutting edge surface 9 is provided on the rotary transmission component 15, and the rotary cutting edge surface 9 is coplanar with the horizontal cutting edge surface 10 to eliminate the step difference between the cutting edges.
[0017] Working Principle: Using this invention, firstly, a main template 2 is fixedly connected to the lower mold base 1, and a vertical guide hole 11 is provided on the upper surface of the lower mold base 1; firstly, horizontal transmission components 14 are fixedly connected to both sides of the main template 2, then horizontal right-side blade 3 and horizontal left-side blade 4 are fixedly connected to the ends of both sides of the horizontal transmission component 14, and a horizontal blade edge 10 is provided on the horizontal transmission component 14; secondly, a rotary transmission component 15 is fixedly connected to one side of the outer wall of the main template 2, and a buffer groove 16 is provided on the rotary transmission component 15. A rotary side blade 6 is fixedly connected to one side of the rotary transmission component 15, and a limiting groove 7 and a second T-shaped groove 8 are provided on the rotary side blade 6 to achieve high-precision positioning. The main template 2 is then fixedly connected to the lower mold base 1, and the mold passes through… The first T-groove 5 and the third T-groove 13 respectively set on the horizontal left blade 4 and the horizontal right blade 3 are used for positioning. The horizontal guide hole 12 guides the horizontal side blade to move in the horizontal direction through precise matching. The vertical guide hole 11 opened on the lower mold base 1 guides the ejector rod to move in the vertical direction. The horizontal left blade 4 cuts into the diaphragm horizontally. At the same time, the rotary transmission component 15 rotates at a certain angle so that the rotary side blade 6 cuts into the diaphragm obliquely. The purpose of rotating the rotary transmission component 15 is to adjust the position of the blade edge of the rotary side blade 6 so that the horizontal blade edge 10 and the rotary blade edge 9 are coplanar, thereby eliminating the step difference between the blade edges, ensuring that the cut of the diaphragm is flat and without step difference, improving the quality and accuracy of diaphragm cutting, and meeting the requirements for diaphragm flatness in subsequent use.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.
[0019] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An INS punching die capable of optimizing the step difference at the side cutter interface, comprising a lower die base (1), characterized in that: The lower mold base (1) is fixedly connected to the main template (2), and the upper surface of the lower mold base (1) is provided with a vertical guide hole (11). Both ends of the main template (2) are provided with horizontal transmission components (14), and the horizontal transmission components (14) are provided with horizontal knife edge surfaces (10). The two ends of the horizontal transmission components (14) are respectively fixedly connected with a horizontal right knife (3) and a horizontal left knife (4).
2. The INS punching die according to claim 1, characterized in that: A first T-shaped groove (5) is provided on one side of the outer wall of the horizontal left-side blade (4), and a horizontal guide hole (12) is provided on one side of the outer surface of the horizontal left-side blade (4).
3. An INS punching die for optimizing the step difference at the side blade intersection as described in claim 1, characterized in that: A third T-shaped groove (13) is provided on one side of the outer wall of the horizontal right-side knife (3).
4. An INS punching die for optimizing the step difference at the side blade intersection as described in claim 1, characterized in that: A rotary transmission component (15) is provided on one side of the main template (2), and a buffer groove (16) is provided on the rotary transmission component (15).
5. An INS punching die according to claim 4, characterized in that: A rotating side blade (6) is fixedly connected to one side of the outer wall of the rotating transmission component (15). A second T-shaped groove (8) is provided on one side of the outer wall of the rotating side blade (6), and a limit groove (7) is provided on one side of the outer surface of the rotating side blade (6).
6. An INS punching die according to claim 5, characterized in that: The rotary transmission component (15) is provided with a rotary blade surface (9).