Stamping die with segmented guide structure

Abstract

The utility model discloses a kind of stamping die with segmented guide structure, it is related to stamping die technical field, including upper die holder and lower die holder;The lower end surface of the upper die holder is connected with first upper die plate assembly and the second upper die plate assembly of adjacent arrangement, the first upper die plate assembly detachably embedded with first guide and second guide, the second upper die plate assembly detachably embedded with third guide, and the first guide, second guide, third guide are sequentially arranged along the stamping order of material belt;The first upper die plate assembly is at the side of its first guide and second guide, and the second upper die plate assembly is at the side of its third guide, and stamping part is respectively arranged in both sides;The lower end of the first guide is respectively extended to form first extension end and second extension end, and first guide port for guiding the front end of material belt is formed between the first extension end and second extension end;Guarantee the precision of material belt feeding conveying.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die with a segmented guide structure. Background Technology

[0002] In the stamping industry, precise strip feeding is crucial for ensuring dimensional accuracy of stamped parts and reducing scrap rates. This is especially true for continuous stamping processes, where the stability of the guide structure directly determines production efficiency and product quality. Currently, most mainstream stamping dies on the market employ an integral guide structure, which guides the strip throughout its journey into the die using a single guide groove or guide block. While this structure is simple in design, it has significant limitations in practical applications. Specifically, a single guide structure is difficult to adapt to the guiding requirements of the strip within the stamping die at different stages of the conveying process. After entering the die, the strip needs to pass through the "front end of the strip within the die", the "middle part of the strip within the die" and the "end end of the strip within the die" in sequence. The requirements for guiding accuracy differ at different stages (e.g., the front end needs to be easy to initially align, while the middle and end ends require high-precision constraints). A single guide structure cannot specifically match the requirements of each stage, which can easily lead to alignment deviations when the strip is conveyed within the die. This is especially true for scenarios requiring continuous stamping at multiple stations, where accumulated deviations can directly affect the final dimensional accuracy of the stamped parts.

[0003] Therefore, designing a stamping die structure that can be specifically adapted to the different conveying stages of the "material strip located in the stamping die" at the front, middle and end, and with stable guiding accuracy, has become a key requirement for solving the current industry pain points. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A stamping die with a segmented guiding structure includes an upper die base and a lower die base; The lower end face of the upper mold base is connected to a first upper mold plate assembly and an adjacent second upper mold plate assembly. The first upper mold plate assembly is detachably fitted with a first guide and a second guide, and the second upper mold plate assembly is detachably fitted with a third guide. The first guide, the second guide, and the third guide are arranged sequentially along the stamping sequence of the strip. The first upper template assembly is provided with stamping parts on the side of its first guide and second guide, and the second upper template assembly is provided with stamping parts on the side of its third guide. The lower ends of the first guide member extend to form a first extension end and a second extension end respectively, and the first extension end and the second extension end surround each other to form a first guide opening for guiding the front end of the material strip. The lower ends of the second guide member extend to form a third extension end and a fourth extension end, respectively, and the third extension end and the fourth extension end surround each other to form a second guide opening for guiding the middle part of the material strip. The lower ends of the third guide member extend to form a fifth extension end and a sixth extension end, respectively, and the fifth extension end and the sixth extension end enclose each other to form a third guide opening for guiding the end of the material strip. The center lines of the first guide port, the second guide port, and the third guide port correspond to each other in sequence, and together they form the first guide channel for the material belt to pass through.

[0006] As a further embodiment of this utility model: the width of the first guide port is greater than the width of the second guide port, the width of the second guide port is equal to the width of the third guide port, and the inlet end of the first guide port is provided with an outwardly expanding flared structure.

[0007] As a further embodiment of this utility model: the first upper template assembly and the second upper template assembly each include an upper mold base plate and an upper mold cover plate, the upper mold base plate is provided with a fitting groove through its end face, the first guide member and the second guide member are respectively fitted into the fitting groove of the first upper template assembly, and the third guide member is fitted into the fitting groove of the second upper template assembly. The upper mold cover plate of the first upper mold assembly covers the upper end face of its own upper mold base plate, and the lower end face of the upper mold cover plate abuts against the top of the first guide member and the second guide member respectively to form a pressing. The upper mold cover plate of the second upper mold assembly covers the upper end face of its own upper mold base plate, and the lower end face of the upper mold cover plate abuts against the top of the third guide member to form a pressing. The upper mold cover plate and the corresponding upper mold base plate are fixedly connected by fasteners.

[0008] As a further embodiment of this utility model: the upper ends of the first guide member, the second guide member, and the third guide member are respectively extended to form limiting ends, and the fitting groove has interconnected stepped grooves along its two sides. The limiting ends are correspondingly embedded in the stepped grooves and abut against the bottom of the stepped grooves.

[0009] As a further embodiment of this utility model: the upper end face of the lower mold base is connected to a lower mold assembly corresponding to the first upper mold assembly and the second upper mold assembly. The lower mold assembly includes a lower mold base plate and a lower mold cover plate. The lower mold base plate and the lower mold cover plate are closed and joined together to form a second guide channel for cooperating with the guide strip. The lower mold base plate has mating grooves corresponding to the first extension end, the second extension end, the third extension end, the fourth extension end, the fifth extension end, and the sixth extension end, respectively, and the lower mold cover plate has mating interfaces corresponding to each mating groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1) This stamping die with segmented guide structure forms segmented guides to adapt to the front, middle and end of the material strip inside the die through the first guide component, the second guide component and the third guide component. Combined with the design that the width of the first guide opening is greater than that of the second guide opening, the width of the second guide opening and the third guide opening are the same, and the flared structure at the entrance end of the first guide opening, it not only improves the convenience of material strip feeding, but also ensures the accuracy of conveying. 2) The first, second, and third guide components are detachably installed by engaging with the upper die cover plate through fitting grooves, and the abutment structure between the limiting end and the stepped groove ensures that the guide components are installed firmly, facilitating subsequent maintenance and replacement; the second guide channel of the lower die assembly corresponds to the first guide channel on the upper die side, and the first to sixth extension ends engage with the docking groove and the mating interface to further constrain the movement trajectory of the strip and reduce the offset and warping of the strip during stamping; at the same time, the layout of the stamping parts on the sides of the first and second upper die assemblies, in conjunction with the corresponding structure of the upper and lower dies, ensures the stability and efficiency of continuous stamping processing, effectively reducing the mold maintenance cost and stamping scrap rate.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. 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 only 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 schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model with the upper mold base removed; Figure 3 This is a schematic diagram of the structure of the upper mold base plate and the first guide member in this utility model; Figure 4 This is a schematic diagram of the structure of the lower mold base plate, the first guide member, and the second guide member in this utility model.

[0014] The reference numerals and names in the figure are as follows: 1. Upper die base; 2. Lower die base; 3. First upper template assembly; 4. Second upper template assembly; 5. First guide component; 6. Second guide component; 7. Third guide component; 8. Stamping part; 9. First extension end; 10. Second extension end; 11. First guide opening; 12. Third extension end; 13. Fourth extension end; 14. Second guide opening; 15. Trumpet-shaped structure; 16. Upper die base plate; 17. Upper die cover plate; 18. Fitting groove; 19. Limiting end; 20. Step groove; 21. Lower die base plate; 22. Lower die cover plate; 23. Second guide channel; 24. Butt joint groove; 25. Butt joint; 26. Strip material. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 In this embodiment of the utility model, a stamping die with a segmented guide structure is mainly composed of an upper die base 1 and a lower die base 2. The upper die base 1 and the lower die base 2 are arranged opposite each other to form the basic mounting frame of the die.

[0017] On the lower end face of the upper mold base 1, a first upper mold plate assembly 3 and a second upper mold plate assembly 4 are fixedly connected. The two upper mold plate assemblies are arranged adjacent to each other and are arranged sequentially along the conveying and stamping direction of the material strip 26. The first upper mold plate assembly 3 and the second upper mold plate assembly 4 are both of a split structure, each including an upper mold base plate 16 and an upper mold cover plate 17. The upper mold base plate 16 has a through-hole groove 18 along its own thickness direction. The size of the through-hole groove 18 is adapted to the guide component to be installed. The through-hole groove 18 also has interconnected stepped grooves 20 integrally formed on both sides of its inner wall. The bottom of the stepped groove 20 is set horizontally.

[0018] For the installation of the guide components, the first guide component 5 and the second guide component 6 are detachably embedded in the fitting groove 18 of the first upper template assembly 3, and the third guide component 7 is detachably embedded in the fitting groove 18 of the second upper template assembly 4. The first guide component 5, the second guide component 6, and the third guide component 7 are arranged sequentially along the stamping sequence of the strip 26. The three components have the same structural features: the upper ends of each guide component extend outward to form limiting ends 19. The shape of the limiting ends 19 matches the shape of the stepped groove 20. When the first guide component 5, the second guide component 6, and the third guide component 7 are embedded in the corresponding fitting groove 18, the limiting ends 19 are correspondingly embedded in the stepped groove 20, and the lower end face of the limiting ends 19 abuts against the bottom of the stepped groove 20, thereby limiting the downward displacement of the first guide component 5, the second guide component 6, and the third guide component 7 in the vertical direction. At the same time, the upper mold cover plate 17 covers the upper mold base plate of each upper template assembly. On the upper end face of 16, the lower end face of the upper mold cover plate 17 of the first upper mold assembly 3 abuts against the top of the first guide member 5 and the second guide member 6 respectively, and the lower end face of the upper mold cover plate 17 of the second upper mold assembly 4 abuts against the top of the third guide member 7. The pressing action of the upper mold cover plate 17 restricts the upward displacement of the first guide member 5, the second guide member 6, and the third guide member 7 in the vertical direction. The upper mold cover plate 17 and the corresponding upper mold base plate 16 are fixedly connected by fasteners (such as bolts). The fasteners pass through the upper mold cover plate 17 and the upper mold base plate 16 in the vertical direction to realize the detachable fixing of the upper mold cover plate 17 and the upper mold base plate 16, thereby completing the stable installation of the first guide member 5, the second guide member 6, and the third guide member 7 in the fitting groove 18. When the first guide member 5, the second guide member 6, and the third guide member 7 are worn or need to be adapted to different specifications of material strip 26, the fasteners can be removed, the upper mold cover plate 17 can be removed, and the guide member can be replaced.

[0019] In the guide structure design of the guide members, the lower ends of the first guide member 5 extend downwards on both sides to form a first extension end 9 and a second extension end 10, which are symmetrically distributed and enclose each other to form a first guide opening 11. The first guide opening 11 is used to guide the front end of the material strip 26 entering the mold. The lower ends of the second guide member 6 extend downwards on both sides to form a third extension end 12 and a fourth extension end 13, which are symmetrically distributed and enclose each other to form a second guide opening 14. The second guide opening 14 is used to guide the middle part of the material strip 26 located in the mold. The lower ends of the third guide member 7 extend downwards on both sides to form a fifth extension end and a sixth extension end, which are symmetrically distributed and enclose each other to form a third guide opening. The third guide opening is used to guide the end of the material strip 26 located in the mold.

[0020] The width of the first guide opening 11 is greater than the width of the second guide opening 14, and the width of the second guide opening 14 is equal to the width of the third guide opening. The entrance end of the first guide opening 11 (i.e., the end where the material belt 26 enters the first guide opening 11) is provided with an outwardly expanding trumpet structure 15. The expansion direction of the trumpet structure 15 is towards the conveying direction of the material belt 26, which facilitates the smooth entry of the front end of the material belt 26 into the first guide opening 11. At the same time, the center lines of the first guide opening 11, the second guide opening 14, and the third guide opening correspond sequentially along the conveying direction of the material belt 26. Together, they form the first guide channel for the material belt 26 to pass through, ensuring that the material belt 26 is stably conveyed along the preset path.

[0021] To achieve the stamping function, stamping parts 8 are fixedly provided on the side of the first guide 5 and the second guide 6 of the first upper template assembly 3, and on the side of the third guide 7 of the second upper template assembly 4. The type of stamping part 8 can be selected according to the actual stamping requirements, such as punching punch, forming punch, cutting punch, etc. The installation position of each stamping part 8 corresponds one-to-one with the stamping station of the strip 26, and is used to stamp the strip 26 conveyed to the corresponding station. On the upper end face of the lower mold base 2, a lower mold assembly is fixedly connected, corresponding to the first upper mold assembly 3 and the second upper mold assembly 4. The lower mold assembly includes a lower mold base plate 21 and a lower mold cover plate 22. After the lower mold base plate 21 and the lower mold cover plate 22 are closed and connected, the two form a second guide channel 23 for cooperating with the guide strip 26. The second guide channel 23 corresponds to the first guide channel on the upper mold side, and together they constitute a complete conveying and guiding path for the strip 26, so as to avoid the strip 26 from warping or shifting during the stamping process. Meanwhile, the lower mold base plate 21 is provided with mating grooves 24 corresponding to the first extension end 9, the second extension end 10, the third extension end 12, the fourth extension end 13, the fifth extension end, and the sixth extension end, respectively. The depth of the mating grooves 24 is adapted to the length of the corresponding extension end. The lower mold cover plate 22 is provided with mating interfaces 25 corresponding to each mating groove 24. The size of the mating interfaces 25 is matched with the cross-sectional size of the extension end. When the mold is closed, the first extension end 9 to the sixth extension end are respectively inserted into the corresponding mating interfaces 25 and the mating grooves 24. A small gap is left between the outer wall of the extension end and the inner wall of the mating grooves 24 and the mating interfaces 25. This does not affect the up and down movement of the first guide member 5, the second guide member 6, and the third guide member 7 with the upper mold base 1. At the same time, the movement trajectory of the first extension end 9 to the sixth extension end can be constrained by the mating grooves 24 and the mating interfaces 25, thereby further improving the guiding stability.

[0022] In summary, this stamping die with segmented guide structure forms segmented guides to adapt to the front, middle and end of the material strip 26 inside the die through the first guide 5, the second guide 6 and the third guide 7. Combined with the design that the width of the first guide opening 11 is greater than that of the second guide opening 14, the width of the second guide opening 14 is the same as that of the third guide opening, and the flared structure 15 at the entrance end of the first guide opening 11, it not only improves the convenience of feeding the material strip 26, but also ensures the accuracy of conveying. The first guide component 5, the second guide component 6, and the third guide component 7 are detachably installed by engaging with the upper die cover plate 17 through the fitting groove 18. The abutment structure between the limiting end 19 and the stepped groove 20 ensures that the guide components are installed firmly and facilitates subsequent maintenance and replacement. The second guide channel 23 of the lower die assembly corresponds to the first guide channel on the upper die side, and the first to sixth extension ends engage with the docking groove 24 and the mating interface 25 to further constrain the movement trajectory of the strip 26 and reduce the offset and warping of the strip 26 during stamping. At the same time, the layout of the stamping parts 8 on the sides of the first upper die assembly 3 and the second upper die assembly 4, in conjunction with the corresponding structure of the upper and lower dies, ensures the stability and efficiency of continuous stamping processing and effectively reduces the mold maintenance cost and stamping scrap rate.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A stamping die with a segmented guiding structure, characterized in that, It includes an upper mold base and a lower mold base; The lower end face of the upper mold base is connected to a first upper mold plate assembly and an adjacent second upper mold plate assembly. The first upper mold plate assembly is detachably fitted with a first guide and a second guide, and the second upper mold plate assembly is detachably fitted with a third guide. The first guide, the second guide, and the third guide are arranged sequentially along the stamping sequence of the strip. The first upper template assembly is provided with stamping parts on the side of its first guide and second guide, and the second upper template assembly is provided with stamping parts on the side of its third guide. The lower ends of the first guide member extend to form a first extension end and a second extension end respectively, and the first extension end and the second extension end surround each other to form a first guide opening for guiding the front end of the material strip. The lower ends of the second guide member extend to form a third extension end and a fourth extension end, respectively, and the third extension end and the fourth extension end surround each other to form a second guide opening for guiding the middle part of the material strip. The lower ends of the third guide member extend to form a fifth extension end and a sixth extension end, respectively, and the fifth extension end and the sixth extension end enclose each other to form a third guide opening for guiding the end of the material strip. The center lines of the first guide port, the second guide port, and the third guide port correspond to each other in sequence, and together they form the first guide channel for the material belt to pass through.

2. A stamping die with a segmented guide structure according to claim 1, characterized in that, The width of the first guide port is greater than the width of the second guide port, the width of the second guide port is equal to the width of the third guide port, and the inlet end of the first guide port is provided with an outwardly expanding flared structure.

3. A stamping die with a segmented guiding structure according to claim 1, characterized in that, The first upper template assembly and the second upper template assembly each include an upper mold base plate and an upper mold cover plate. The upper mold base plate has a through-hole groove along its end face. The first guide and the second guide are respectively embedded in the through-hole of the first upper template assembly, and the third guide is embedded in the through-hole of the second upper template assembly. The upper mold cover plate of the first upper mold assembly covers the upper end face of its own upper mold base plate, and the lower end face of the upper mold cover plate abuts against the top of the first guide member and the second guide member respectively to form a pressing. The upper mold cover plate of the second upper mold assembly covers the upper end face of its own upper mold base plate, and the lower end face of the upper mold cover plate abuts against the top of the third guide member to form a pressing. The upper mold cover plate and the corresponding upper mold base plate are fixedly connected by fasteners.

4. A stamping die with a segmented guide structure according to claim 3, characterized in that, The upper ends of the first guide member, the second guide member, and the third guide member each extend to form a limiting end. The fitting groove has a connected stepped groove along its two sides. The limiting end is correspondingly embedded in the stepped groove and abuts against the bottom of the stepped groove.

5. A stamping die with a segmented guide structure according to claim 1, characterized in that, The upper end face of the lower mold base is connected to a lower mold assembly corresponding to the first upper mold assembly and the second upper mold assembly. The lower mold assembly includes a lower mold base plate and a lower mold cover plate. The lower mold base plate and the lower mold cover plate are closed and joined together to form a second guide channel for cooperating with the guide strip. The lower mold base plate has mating grooves corresponding to the first extension end, the second extension end, the third extension end, the fourth extension end, the fifth extension end, and the sixth extension end, respectively, and the lower mold cover plate has mating interfaces corresponding to each mating groove.

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