Stamping die and forming equipment

Abstract

The utility model provides a stamping die and forming equipment. The stamping die comprises a first die set, a first sliding block and a second sliding block, the first die set is provided with a forming cavity, and the forming cavity extends in the first direction; the first sliding block is slidably connected to the forming cavity in the first direction. The second sliding block is connected to the first sliding block in a sliding mode in the first direction and used for supporting a product formed by the forming cavity. Compared with the prior art, by means of the first sliding block slidably connected with the first module and the second sliding block slidably connected with the first sliding block, the size of the stamping die in the first direction can be increased along with sliding of the first sliding block and the second sliding block, and the size of the stamping die in the second direction can be increased while the first module is not thickened. And a product larger in size in the first direction is formed through the stamping die.

Description

Technical Field

[0001] This application relates to the field of die technology, specifically to stamping dies and forming equipment. Background Art

[0002] In industrial production, forming equipment and supporting dies are commonly used to achieve batch forming of products. The depth dimension of the die forming cavity corresponds to the height dimension of the product. Therefore, for common current stamping dies, the thickness of the die in this direction is equal to the maximum height dimension of the products that can be produced. Only by increasing the thickness of the die to increase the length of the forming cavity inside the die can products with larger height dimensions be produced, resulting in an increase in the manufacturing cost of the die. Summary of the Invention

[0003] This application mainly provides a stamping die and forming equipment that can form products with larger height dimensions without thickening the die.

[0004] To solve the above technical problems, a technical solution adopted in this application is: providing a stamping die, including a first module, a first slider, and a second slider. The first module is provided with a forming cavity, and the forming cavity extends along a first direction; the first slider is slidably connected to the forming cavity along the first direction; the second slider is slidably connected to the first slider along the first direction and is used to support the product formed by the forming cavity.

[0005] In a specific embodiment, there are multiple first sliders, and the multiple first sliders are nested with each other two by two and are slidably connected along the first direction; the outermost first slider is slidably connected to the forming cavity, and the innermost first slider is slidably connected to the second slider.

[0006] In a specific embodiment, the first slider moves between a first position and a second position in the forming cavity. The first slider is provided with a movable groove, and the depth direction of the movable groove is the same as the first direction. Part of the forming cavity is formed in the movable groove, and the second slider is at least partially arranged in the movable groove, and the second slider moves between a third position and a fourth position in the movable groove.

[0007] In a specific embodiment, the forming cavity includes a material guiding section, a forming section, and a socket section. The material guiding section, the forming section, and the socket section are sequentially connected along the first direction. The inner diameter of the socket section is larger than the inner diameter of the forming section, and a stepped surface is formed between the forming section and the socket section. The inner diameter of the material guiding section gradually decreases along the first direction until it is equal to the inner diameter of the forming section.

[0008] In a specific embodiment, the inner wall of the sleeve section is provided with a first limiting portion, and the outer wall of the first sliding block is provided with a second limiting portion, one of the first limiting portion and the second limiting portion is a limiting groove, and the other is a limiting protrusion, and when the first sliding block moves to the second position, the inner wall of the limiting groove and the limiting protrusion abut against the first sliding block to limit the first sliding block.

[0009] In a specific embodiment, the limiting groove is opened on the inner wall of the sleeve section, and the extension direction of the limiting groove is parallel to the first direction, the limiting protrusion is arranged on the surface of the first sliding block facing the sleeve section, and the limiting protrusion is slidably embedded in the limiting groove.

[0010] In a specific embodiment, the outer diameter of the first slider is larger than the inner diameter of the forming section and smaller than the inner diameter of the sleeve section. When the first slider is located at the first position, the first slider faces the stepped surface on one side of the forming section.

[0011] In a specific embodiment, the second slider includes a third limiting portion, and the third limiting portion is arranged on the surface of the second slider facing the movable groove, the inner diameter of the movable groove is larger than the inner diameter of the forming section, and on a plane perpendicular to the first direction, the size of the third limiting portion is smaller than the inner diameter of the movable groove and larger than the inner diameter of the forming section; wherein, when the second slider is located at the third position, the third limiting portion presses against the step surface on one side surface of the forming section.

[0012] In a specific embodiment, a transmission through hole is provided at the bottom of the movable groove formed by the first slider, and the second slider also includes a transmission part, and the transmission part is arranged on the side of the second slider away from the forming cavity, and the transmission part and the transmission through hole are arranged along the first direction; wherein, on a plane perpendicular to the first direction, the size of the third limiting part is larger than the inner diameter of the transmission through hole, and the size of the transmission part is slightly smaller than the inner diameter of the transmission through hole, and when the second slider is located at the fourth position, the side surface of the third limiting part facing the transmission through hole presses against the bottom of the movable groove, and the transmission part is penetrated into the transmission through hole.

[0013] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a molding device, including a device body and a stamping die as described in any of the above embodiments.

[0014] The beneficial effects of this application are as follows: Different from the prior art, in the implementation mode of this application, both the first slider and the second slider can slide relative to the first module, and the size of the forming cavity in the first direction within the stamping die can increase with the movement of the first slider and the second slider, so that the stroke of the stamping operation is not limited to the thickness of the first module. Without increasing the thickness of the first module, the upper limit of the size that can be processed in the first direction can be expanded, improving the usability of the stamping die and reducing the costs of the manufacturer for producing the die and the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the implementation modes of this application, the following will briefly introduce the drawings required for the description of the implementation modes. Obviously, the drawings in the following description are only some implementation modes of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a schematic structural diagram of the forming equipment provided by this application;

[0017] Figure 2 is Figure 1 an enlarged structural diagram of area E in

[0018] Figure 3 is a schematic structural diagram of another angle of the forming equipment provided by this application;

[0019] Figure 4 is an exploded structural diagram of another angle of the forming equipment provided by this application;

[0020] Figure 5 is Figure 3 a sectional structural diagram of the F-F section in

[0021] Figure 6 is a schematic structural diagram of the limit protrusion and limit chute of the stamping die of this application.

[0022] Description of the reference numerals:

[0023] 1. Stamping die; 2. First module; 21. Forming cavity; 211. Feeding section; 212. Forming section; 213. Step surface; 214. Socket section; 22. Limit chute; 23. Feeding plate; 24. Female die; 25. First backing plate; 26. Second backing plate; 27. Die base; 3. First slider; 31. Moving groove; 311. Transmission through hole; 32. Limit protrusion; 4. Second slider; 41. First abutting surface; 42. Third limiting part; 43. Transmission part; 44. Second abutting surface; 5. Upper die punch; 6. Ejector rod; 7. Product; First position A; Second position B; Third position C; Fourth position D; First direction H. Specific Embodiments

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only some embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0025] The terms "first", "second", and "third" in the present application are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes unlisted steps or units, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0026] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] In industrial production, common forming equipment and supporting molds are often used to achieve batch forming of products. The depth dimension of the mold forming cavity corresponds to the height dimension of the product. Therefore, for currently common stamping molds, the thickness of the mold in this direction is equal to the maximum height dimension of the products that can be produced. Only by increasing the thickness of the mold to increase the length of the forming cavity in the mold can products with larger height dimensions be produced, resulting in an increase in the manufacturing cost of the mold.

[0028] Increasing the thickness of the mold will also affect the molding equipment. For example, some molding equipment itself has specifications for the maximum closing height. When the thickness of the mold exceeds the specifications of the molding equipment, it is necessary to replace the molding equipment with a larger maximum closing height to fit. This forces the manufacturer to spend a large amount of cost on configuring the molding equipment and mold materials, greatly increasing the production cost of the product.

[0029] To improve or solve the above technical problems, the inventors of this application have conducted long-term research and proposed at least the following embodiments.

[0030] Refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 is a schematic structural view of the molding equipment provided by this application. Figure 2 is Figure 1 an enlarged structural view of area E in Figure 3 is a schematic structural view of another angle of the molding equipment provided by this application. An embodiment of this application provides a stamping die 1 for molding a product 7. The stamping die 1 includes a first module 2, a first slider 3, and a second slider 4.

[0031] The first module 2 is provided with a molding cavity 21 that extends along a first direction H. The first slider 3 is slidably connected to the molding cavity 21 along the first direction H. The second slider 4 is slidably connected to the first slider 3 along the first direction H and can be used to support the product 7 molded by the molding cavity 21.

[0032] In the structure provided in this embodiment, both the first slider 3 and the second slider 4 can slide relative to the first module 2, and the size of the molding cavity 21 in the stamping die 1 in the first direction H can increase as the first slider 3 and the second slider 4 move, so that the stroke of the stamping operation during the molding process of the product 7 is not limited to the thickness of the first module 2. Without increasing the thickness of the first module 2, the slidably connected first slider 3 and second slider 4 can be used to expand the size of the stamping die 1 in the first direction H, increasing the upper limit of the size of the product 7 that can be processed in the first direction H, thereby improving the usability of the stamping die 1 and reducing the cost of the manufacturer for producing the mold and the product 7.

[0033] In one embodiment, there are multiple first sliders 3. The multiple first sliders 3 are nested with each other in pairs and are slidably connected along the first direction H. The outermost first slider 3 is slidably connected to the molding cavity 21, and the innermost first slider 3 is slidably connected to the second slider 4.

[0034] Using the structure provided in this embodiment, multiple first sliders 3 slidably connected in the first direction H can further expand the variation range of the depth dimension of the forming cavity 21, thereby increasing the maximum dimension of the product 7 that can be formed by the stamping die 1 in the first direction H, meeting the forming requirements of larger-sized products 7, and further improving the usability of the stamping die 1.

[0035] In one embodiment, the first slider 3 moves between the first position A and the second position B in the forming cavity 21. The first slider 3 is provided with a movable groove 31, and the depth direction of the movable groove 31 is the same as the first direction H. Part of the forming cavity 21 is formed in the movable groove 31, and the second slider 4 is at least partially disposed in the movable groove 31, and the second slider 4 moves between the third position C and the fourth position D in the movable groove 31.

[0036] The structure provided in this embodiment achieves the effect of slidably connecting the first slider 3 and the second slider 4 by providing the movable groove 31 in the first slider 3. The movement range of the first slider 3 in the forming cavity 21 is limited between the first position A and the second position B, and the movement range of the second slider 4 in the movable groove 31 is limited between the third position C and the fourth position D, standardizing the upper limit of the dimension of the forming cavity 21 in the first direction H, making it difficult for the first module 2, the first slider 3, and the second slider 4 to slip off during the forming process, and improving the stability of the stamping die 1.

[0037] In one embodiment, the forming cavity 21 includes a material guiding section 211, a forming section 212, and a socket section 214, and the material guiding section 211, the forming section 212, and the socket section 214 are sequentially connected along the first direction H. Among them, the inner diameter of the socket section 214 is larger than the inner diameter of the forming section 212, and a stepped surface 213 is formed between the forming section 212 and the socket section 214, and the inner diameter of the material guiding section 211 gradually decreases along the first direction H until it is equal to the inner diameter of the forming section 212.

[0038] During the stamping and forming process of the product 7, the product 7 enters the forming cavity 21 along the first direction H under the push of the forming equipment. The forming section 212 with a smaller inner diameter can cause the product 7 to deform for forming; the socket section 214 can be used to accommodate and protect the formed part of the product 7, and at the same time enable the subsequent part of the product 7 to continue the forming process through the forming section 212; the material guiding section 211 can form an inclined surface for guiding the product 7, thereby guiding the product 7 entering the forming section 212, which is beneficial to improving the efficiency of the forming process. The material guiding section 211, the forming section 212, and the socket section 214 sequentially connected along the first direction H can cooperate with each other to improve the efficiency of product 7 forming while meeting the forming requirements of the product 7, thereby improving the usability of the stamping die 1.

[0039] Refer to Figure 4 、 5 、6,Figure 4 It is a schematic diagram of the decomposed structure of the molding equipment provided in this application from another angle. Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure of the FF section. Figure 6 Schematic diagram of the structure of the limiting protrusion and the limiting slide groove of the stamping die of the present application. In one embodiment, the inner wall of the sleeve section 214 is provided with a first limiting portion, and the outer wall of the first slider 3 is provided with a second limiting portion, one of the first limiting portion and the second limiting portion is the limiting slide groove 22, and the other is the limiting protrusion 32. When the first slider 3 moves to the second position B, the inner wall of the limiting slide groove 22 abuts against the limiting protrusion 32, thereby limiting the first slider 3.

[0040] Utilizing the structure provided in this embodiment, the first slider 3 can be limited by the matching relationship between the limiting protrusion 32 and the limiting groove 22, and the sliding range of the first slider 3 in the molding cavity 21 is limited between the first position A and the second position B, thereby reducing the probability of the first slider 3 slipping relative to the molding cavity 21 and improving the stability of the stamping die 1.

[0041] In one embodiment, the limiting groove 22 is opened on the inner wall of the sleeve section 214, and the extension direction of the limiting groove 22 is parallel to the first direction H. The limiting protrusion 32 is arranged on the surface of the first slider 3 facing the sleeve section 214, and the limiting protrusion 32 is slidably embedded in the limiting groove 22.

[0042] By sliding the limiting protrusion 32 into the limiting slide groove 22 , the direction and distance of movement of the first slider 3 relative to the molding cavity 21 are limited, thereby further reducing the probability of the first slider 3 slipping relative to the molding cavity 21 and improving the stability of the stamping die 1 .

[0043] In one embodiment, the outer diameter of the first slider 3 is larger than the inner diameter of the forming section 212 and smaller than the inner diameter of the sleeve section 214. When the first slider 3 is located at the first position A, the surface of the first slider 3 facing the forming section 212 abuts against the stepped surface 213.

[0044] A stepped surface 213 is formed between the forming section 212 and the sleeve section 214 due to the difference in inner diameters. Due to the presence of the stepped surface 213, the first slider 3 abuts against the stepped surface 213 after moving to the first position A, thereby being limited to the first position A. The structure provided in this embodiment can effectively limit the first slider 3, making it difficult for it to escape from the forming cavity 21 during the sliding process, so that the overall structure of the stamping die 1 is more stable and reliable.

[0045] In one embodiment, the second slider 4 includes a third limit portion 42, which is disposed on a surface of the second slider 4 facing the movable groove 31, and the inner diameter of the movable groove 31 is larger than the inner diameter of the forming section 212. On a plane perpendicular to the first direction H, the size of the third limit portion 42 is smaller than the inner diameter of the movable groove 31 and larger than the inner diameter of the forming section 212.

[0046] When the second slider 4 is at the third position C, the third limiting portion 42 faces the side surface of the forming section 212 against the stepped surface 213. In addition to limiting the first slider 3, the stepped surface 213 can also be used to limit the second slider 4, making it difficult for the second slider 4 to escape from the forming cavity 21, thereby improving the overall structural stability of the stamping die 1.

[0047] Figure 1 When the second slider 4 is shown to be at the third position C, part of the second slider 4 can enter the guide section 211 through the molding section 212, so that the second slider 4 can dock with the unformed product 7. The step surface 213 can also help align the positions of the first slider 3 and the second slider 4. When the first slider 3 is at the first position A and the second slider 4 is at the third position C, the size of the molding cavity 21 in the first direction H is the smallest. At this time, the product 7 to be molded can easily contact the second slider 4 and can push the second slider 4 to move along the first direction H during the molding process until the first slider 3 is at the second position B and the second slider 4 is at the fourth position D, at which time the size of the molding cavity 21 in the first direction H is the largest.

[0048] See also Figure 4 , 5 In one embodiment, the bottom of the movable groove 31 formed by the first slider 3 is provided with a transmission through hole 311, and the second slider 4 further includes a transmission part 43. The transmission part 43 is arranged on the side of the second slider 4 away from the molding cavity 21, and the transmission part 43 and the transmission through hole 311 are arranged along the first direction H.

[0049] Among them, on the plane perpendicular to the first direction H, the size of the third limiting portion 42 is larger than the inner diameter of the transmission through hole 311, and the size of the transmission portion 43 is slightly smaller than the inner diameter of the transmission through hole 311. When the second slider 4 is located at the fourth position D, the side surface of the third limiting portion 42 facing the transmission through hole 311 abuts against the bottom of the movable groove 31, and the transmission portion 43 is disposed in the transmission through hole 311.

[0050] With the structure provided in this embodiment, the transmission part 43 of the second slider 4 can extend out through the transmission through-hole 311. When the second slider 4 reaches the fourth position D, the user can manually or use the stamping end of the molding device to abut against the transmission part 43, thereby pushing the second slider 4 to move from the fourth position D to the third position C, resetting the stamping die 1, and using the second slider 4 to export the molded product 7 from the molding cavity 21, which facilitates the subsequent processing of the product 7 and the next stamping, and improves the usability of the stamping die 1.

[0051] Optionally, the first module 2 may specifically include a material guiding plate 23, a female die 24, a first backing plate 25, a second backing plate 26, and a die holder 27 that are sequentially laminated in the first direction H. A buffer section may also be provided between the molding section 212 and the socket section 214 of the molding cavity 21. The radial dimension of the buffer section is slightly larger than that of the molding section 212 but smaller than that of the socket section 214. The stepped surfaces 213 for limiting the first slider 3 and the second slider 4 may be formed between the buffer section and the socket section 214.

[0052] Among them, the material guiding section 211 is formed on the material guiding plate 23 and the female die 24, the molding section 212 is formed on the female die 24, the stepped surface 213 is formed on the surface of the first backing plate 25 facing away from the female die 24, the buffer section is formed on the first backing plate 25, the socket section 214 is formed on the second backing plate 26 and the die holder 27, and the die holder 27 is used to relatively fix the entire stamping die 1 to the equipment main body. The several parts of the first module 2 can be disassembled and laminated, and a certain part can be disassembled and replaced, such as replacing the female die 24, so as to adapt to different molding requirements, which can improve the versatility of the stamping die 1. At the same time, the detachable first module 2 can also meet the overhaul and maintenance requirements of the stamping die 1.

[0053] The embodiment of the present application also provides a molding device, including an equipment main body and the stamping die 1 described in any one of the above embodiments.

[0054] The stamping die 1 may specifically further include an upper die punch 5. Among them, the upper die punch 5 serves as the upper die of the stamping die 1 and is connected to an output end of the equipment main body. The upper die punch 5 is used to press the product 7 along the first direction under the drive of the equipment main body. The first module 2 serves as the lower die of the stamping die 1 and is used to be relatively fixed to the equipment main body and can cooperate with the upper die punch 5 to mold the product 7. A first abutting surface 41 is provided on the side of the second slider 4 facing the molding cavity 21, and the first abutting surface 41 is used to support the product 7 and the upper die punch 5.

[0055] At the beginning of the process of forming product 7, the first slider 3 is located at the first position A, the second slider 4 is located at the third position C, the first abutting surface 41 is located in the material guiding section 211, and the upper die punch 5 can be smoothly butted with the first abutting surface 41, and the unformed product 7 is clamped between the two. With the operation of the forming equipment, the upper die punch 5 can apply a force to the product 7 in the first direction H, and then push the product 7, the second slider 4, and the first slider 3 to move in the first direction H, and use the forming section 212 to form the product 7. When the first slider 3 is located at the second position B and the second slider 4 is located at the fourth position D, the size of the forming cavity 21 in the first direction H reaches the maximum, and the upper die punch 5 completes the process of forming the product 7.

[0056] Optionally, after the product 7 is formed, the upper die punch 5 can move in the reverse of the first direction H, so as to carry the product 7 out of the forming cavity 21, realizing the automation of the process of exporting the product 7.

[0057] Optionally, the equipment main body of the forming equipment may further include a ejector rod 6, and the ejector rod 6 is arranged opposite to the upper die punch 5. A second abutting surface 44 is provided on the side of the transmission part 43 away from the first abutting surface 41, and the second abutting surface 44 is used to abut against the ejector rod 6 of the forming equipment. During the demolding process when the product 7 gradually exits from the forming cavity, the ejector rod 6 can push the second abutting surface 44 of the transmission part 43 to move in the reverse of the first direction H, so that the second slider 4 gradually moves from the fourth position D to the third position C, thereby promoting the reset of the stamping die 1 and the export of the formed product 7.

[0058] Optionally, the size of the transmission through hole 311 in a certain direction perpendicular to the first direction H can be set to be smaller than the ejector rod 6 of the forming equipment. During the process of forming the product 7, initially, the upper die punch 5 and the first abutting surface 41 clamp the product 7 and start to move in the first direction H. At this time, the first slider 3 is located at the first position A, the second slider 4 is located at the third position C, and the ejector rod 6 is in contact with both the second abutting surface 44 and the surface of the first slider 3 at the same time, controlling the synchronous movement of the first slider 3 and the second slider 4.

[0059] When the first slider 3 moves to the second position B under the pushing of the upper die punch 5, the first slider 3 is limited by the forming cavity 21 and stops moving, and the second slider 4 continues to move alone in the first direction H towards the fourth position D under the pushing of the upper die punch 5. During this process, the ejector rod 6 only abuts against the second abutting surface 44. When the second slider 4 is located at the fourth position D, the forming cavity 21 reaches the maximum size in the first direction H, and the stamping process of the product 7 in the first direction H ends. After that, the ejector rod 6 can start to work in the reverse of the first direction H to perform the demolding process of the product 7.

[0060] During the demolding process in which the product 7 gradually exits from the molding cavity, after the ejector rod 6 pushes the transmission part 43 to move the second slider 4 a certain distance, the ejector rod 6 contacts the surface of the first slider 3, so that it can continue to push the first slider 3 and the second slider 4 in the reverse first direction H until the first slider 3 returns to the first position A and the second slider 4 returns to the third position C. Thus, the ejector rod 6 can be used to reset the stamping die 1 and export the product 7. The upper die punch 5 and the ejector rod 6 cooperate with each other to realize the automation of the process of the product 7 entering the molding cavity 21 for molding and exiting the molding cavity 21 after molding, which can improve the use efficiency of the molding equipment and reduce the time cost of molding the product 7.

[0061] Optionally, a spring may also be provided between the first slider 3 and the first module 2 forming the socket section 214. During the process in which the first slider 3 moves from the first position A to the second position B under the action of the upper die punch 5, the spring deforms. After the molding process is completed and the upper die punch 5 stops applying force to the first slider 3, the spring can release elastic potential energy to urge the first slider 3 to return to the first position A.

[0062] Similarly, springs, elastic pads and other mechanisms capable of elastic deformation can also be provided between the second slider 4 and the first slider 3, between the second slider 4 and the first module 2, and between the ejector rod 6 and the first module 2, so as to realize the automatic reset of the stamping die 1 after a molding process is completed.

[0063] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. A stamping die, characterized in that: include: A first mold assembly (2) is provided with a molding cavity (21), wherein the molding cavity (21) extends along a first direction; A first sliding block (3) slidably connected to the molding cavity (21) along the first direction; The second slider (4) is slidably connected to the first slider (3) along the first direction and is used to support the product (7) formed by the forming cavity (21).

2. The stamping die according to claim 1, characterized in that: A plurality of the first sliding blocks (3) are provided, and the plurality of the first sliding blocks (3) are nested in pairs and slidably connected along the first direction; the outermost first sliding block (3) is slidably connected to the molding cavity (21), and the innermost first sliding block (3) is slidably connected to the second sliding block (4).

3. The stamping die according to claim 1, characterized in that: The first slider (3) moves between a first position and a second position of the molding cavity (21); the first slider (3) is provided with a movable groove (31); the depth direction of the movable groove (31) is the same as the first direction; the molding cavity (21) is partially formed in the movable groove (31); the second slider (4) is at least partially arranged in the movable groove (31); and the second slider (4) moves between a third position and a fourth position of the movable groove (31).

4. The stamping die according to claim 3, characterized in that: The molding cavity (21) comprises a material guide section (211), a molding section (212) and a sleeve section (214); the material guide section (211), the molding section (212) and the sleeve section (214) are connected in sequence along the first direction; the inner diameter of the sleeve section (214) is greater than the inner diameter of the molding section (212); a step surface (213) is formed between the molding section (212) and the sleeve section (214); the inner diameter of the material guide section (211) gradually decreases along the first direction until it becomes equal to the inner diameter of the molding section (212).

5. The stamping die according to claim 4, characterized in that: The inner wall of the sleeve section (214) is provided with a first limiting portion, and the outer wall of the first sliding block (3) is provided with a second limiting portion, one of the first limiting portion and the second limiting portion is a limiting sliding groove (22), and the other is a limiting protrusion (32), and when the first sliding block (3) moves to the second position, the inner wall of the limiting sliding groove (22) and the limiting protrusion (32) abut against the first sliding block (3) to limit the first sliding block (3).

6. The stamping die according to claim 5, characterized in that: The limiting slide groove (22) is opened on the inner wall of the sleeve section (214), and the extension direction of the limiting slide groove (22) is parallel to the first direction; the limiting protrusion (32) is arranged on the surface of the first sliding block (3) facing the sleeve section (214), and the limiting protrusion (32) is slidably embedded in the limiting slide groove (22).

7. The stamping die according to claim 4, characterized in that: The outer diameter of the first sliding block (3) is larger than the inner diameter of the forming section (212) and smaller than the inner diameter of the sleeve section (214); when the first sliding block (3) is located at the first position, a side surface of the first sliding block (3) facing the forming section (212) abuts against the stepped surface (213).

8. The stamping die according to claim 4, characterized in that: The second sliding block (4) comprises a third limiting portion (42), the third limiting portion (42) being arranged on a surface of the second sliding block (4) facing the movable groove (31), the inner diameter of the movable groove (31) being larger than the inner diameter of the forming section (212), and on a plane perpendicular to the first direction, the size of the third limiting portion (42) is smaller than the inner diameter of the movable groove (31) and larger than the inner diameter of the forming section (212); Wherein, when the second sliding block (4) is located at the third position, a side surface of the third limiting portion (42) facing the forming section (212) abuts against the stepped surface (213).

9. The stamping die according to claim 8, characterized in that: The bottom of the movable groove (31) formed by the first slider (3) is provided with a transmission through hole (311), and the second slider (4) further comprises a transmission part (43), the transmission part (43) is arranged on a side of the second slider (4) away from the molding cavity (21), and the transmission part (43) and the transmission through hole (311) are arranged along the first direction; Wherein, on a plane perpendicular to the first direction, the size of the third limiting portion (42) is larger than the inner diameter of the transmission through hole (311), and the size of the transmission portion (43) is slightly smaller than the inner diameter of the transmission through hole (311); when the second sliding block (4) is located at the fourth position, a side surface of the third limiting portion (42) facing the transmission through hole (311) abuts against the bottom of the movable groove (31), and the transmission portion (43) is inserted into the transmission through hole (311).

10. A molding device, characterized in that: The invention comprises an equipment body and a stamping die as claimed in any one of claims 1 to 9.

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