Texture rubbing mold of stainless steel model for condom production

By using stainless steel textured dies in condom production, the combination of a rubbing plate and a limiting wheel enables efficient and uniform production of surface textures on metal dies. This solves the problems of low efficiency and high cost in existing metal die texture production technologies, and enables diverse texture styles and efficient automated production.

CN223777577UActive Publication Date: 2026-01-09TAIZHOU ZHENHAO TECH CO LTD
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Patent Information

Application Number
CN202423269660.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2026-01-09
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

Existing condom production models struggle to efficiently and uniformly create textures on metal surfaces, especially the threaded, raised textures of large-particle condoms. Furthermore, current technologies suffer from high production costs and low efficiency.

Method used

The texture-making die, made of stainless steel, uses a combination of a rubbing plate and a limiting wheel. The rubbing plate is driven to move horizontally by a cutting tool to transfer the texture onto the workpiece surface. Combined with the design of a positioning post and a return spring, the texture is automatically produced and removed.

Benefits of technology

It enables efficient and uniform texture creation on the surface of metal molds, reduces production costs, improves texture controllability and consistency, supports diverse texture styles, and meets different usage needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stainless steel model texture rubbing mould for condom production, which comprises a base, a rubbing plate, a limit wheel and a positioning column, the rubbing plate is horizontally connected on the base in a sliding manner, the limit wheel is rotatably connected on the base, the positioning column is mounted on the base, the rubbing plate is provided with a texture part, and the texture part is provided with a groove. The positioning column is higher than the washboard and used for sleeving and positioning a workpiece, the limiting wheels are located on the two sides of the upper portion of the positioning column and used for abutting against the workpiece, the washboard is driven to move horizontally to transfer textures on the washboard to the surface of the workpiece, and the needed textures are manufactured on the surface of a metal mold well. Moreover, the texture size is controllable, the consistency is good, the depth is controllable, the texture can be designed and selected, the texture style can be diversified, and the use requirements of more occasions can be met.
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Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a textured die for stainless steel models used in condom production. Background Technology

[0002] Condom molds are important production tools in the condom manufacturing process. Condoms are made of materials such as latex and water-based polyurethane. After the mold is washed, it is immersed in a latex tank filled with liquid latex. After being baked at high temperature, it is immersed and dried again. This process is repeated three times. After demolding and inspection, the production of condoms is completed.

[0003] Currently, condom production molds are generally made of glass. However, many stages of condom production require heating. In the current context of energy conservation and green manufacturing, energy saving is a crucial requirement and trend for future enterprise development. Metal sheet materials offer stable dimensional accuracy, good thermal conductivity, corrosion resistance, and can be produced in various thicknesses—all characteristics perfectly suited to condom production requirements. Large-particle condoms refer to condoms with granular or spiral-shaped protrusions on their surface. During use, they provide more noticeable friction and stimulation, enhancing contact sensitivity and potentially preventing the spread of diseases. Achieving a uniform texture on the surface of the metal mold is a pressing challenge that needs to be overcome. Utility Model Content

[0004] In order to achieve good texture creation on metal models with good texture uniformity, this application provides a texture-making mold for stainless steel models used in condom production.

[0005] This application provides a textured die for stainless steel molds used in condom production, employing the following technical solution:

[0006] A textured die for a stainless steel model used in condom production is characterized by comprising a base, a rubbing plate, limiting wheels, and positioning posts. The rubbing plate is horizontally slidably connected to the base, the limiting wheels are rotatably connected to the base, and the positioning posts are mounted on the base. The rubbing plate has a textured portion, the positioning posts are higher than the rubbing plate and are used for positioning the workpiece, and the limiting wheels are located on both sides above the positioning posts, and the limiting wheels are used to press against the workpiece.

[0007] Optionally, the outer diameter of the positioning post is 0.05-1mm smaller than the inner diameter of the workpiece.

[0008] Optionally, a support base is connected to the positioning column, the support base is vertically elastically connected to the base, and a return spring is provided between the base and the support base to connect the two, the return spring being used to drive the support base to move down and reset.

[0009] Optionally, the top wall of the textured portion is higher than the top wall of the washboard, and a recess is formed on the top wall of the washboard to allow the positioning post to move downward.

[0010] Optionally, it also includes an upper mold, on which a cutting tool is provided, and the washboard and the cutting tool are provided with inclined surfaces for mutual contact, and the downward movement of the cutting tool drives the washboard to move horizontally.

[0011] Optionally, the washboard has a vertical surface on the side near the inserter, and the inserter has a vertical surface for contacting the vertical surface. When the vertical surface contacts the vertical surface, the inserter drives the washboard to move horizontally to complete a stroke of one circumference of the workpiece.

[0012] Optionally, a return cylinder is provided on one side of the base to drive the washboard to move horizontally and reset.

[0013] Optionally, the support base is provided with a stripping cylinder that drives the workpiece out of the positioning column, and the output end of the stripping cylinder is provided with a push ring sleeved on the positioning column.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. By driving the washboard to move horizontally, the texture on the washboard is transferred to the surface of the workpiece, which can effectively create the required texture on the surface of the metal mold. The texture size is controllable, the consistency is good, and the depth is controllable. The texture can be designed and selected, and the texture style can be diversified to meet the needs of more occasions.

[0016] 2. The texture mold has a simple overall structure. During the downward movement of the upper mold, the cutting tool synchronously drives the rubbing plate to move, thus creating the texture. The whole process is efficient and fast.

[0017] 3. The positioning post is vertically and elastically connected to the base. After the texture is made, the positioning post and the product will move down in the recessed part and disengage from the limit wheel, so that the product can be automatically unloaded under the action of the unloading cylinder. Attached Figure Description

[0018] Figure 1 This is a side view of an embodiment of this application.

[0019] Figure 2 This is a cross-sectional view of the positioning post in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure during mold opening in an embodiment of this application.

[0021] Figure 4 This is a structural diagram of the stripping cylinder in operation according to an embodiment of this application.

[0022] Figure 5 This is a top view of the washboard in the embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. Upper mold; 3. Washboard; 4. Textured part; 5. Support base; 6. Positioning post; 7. Workpiece; 8. Limiting wheel; 9. Inserting knife; 10. Abutment block; 11. Inclined surface; 12. Vertical surface; 13. Vertical surface; 14. Return cylinder; 15. Stripping cylinder; 16. Push ring; 17. Mounting groove; 18. Connecting post; 19. Return spring; 20. Recessed part; 21. Guide surface; 22. Protrusion. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] A textured die for stainless steel models used in condom production, such as Figure 1 and Figure 2 As shown, the device includes a base 1 and an upper mold 2. The upper mold 2 is located directly above the base 1. A washboard 3 is horizontally slidably connected to the base 1. The washboard 3 has a textured part 4 for creating textures. A support seat 5 is also provided on the base 1. A horizontal positioning post 6 is fixedly provided on the support seat 5. The positioning post 6 is cylindrical and is used for the workpiece 7 to be fitted. The workpiece 7 is a stainless steel model of a condom. The length direction of the positioning post 6 is perpendicular to the horizontal sliding direction of the washboard 3. Limiting wheels 8 are provided on both sides above the positioning post 6 on the support seat 5. The limiting wheels 8 are rotatably connected to the support seat 5 and are used to press against the surface of the workpiece 7 to limit it to a certain extent.

[0027] In actual use, the outer diameter of the positioning post 6 is 0.05-1mm smaller than the inner diameter of the workpiece 7. This ensures that when the workpiece 7 is fitted onto the positioning post 6, there is a certain gap between the inner wall of the workpiece 7 and the positioning post 6. This gap provides the workpiece 7 with a certain deformation space. When the washboard 3 moves horizontally until the texture on the surface of the washboard 3 contacts the surface of the workpiece 7, the surface of the workpiece 7 undergoes a certain deformation due to the up-and-down action of the washboard 3 and the limiting wheel 8, ultimately forming a texture on the surface of the workpiece 7 that is consistent with the texture on the washboard 3.

[0028] like Figure 1 and Figure 2 As shown, a cutting tool 9 is provided on one side of the bottom of the upper mold 2, and an abutment block 10 is fixedly provided on one side of the washboard 3, located below the cutting tool 9 and used to contact it. The abutment block 10 and the cutting tool 9 have inclined surfaces 11 with the same inclination for mutual abutment. When the upper mold 2 moves down to close the mold, the cutting tool 9 moves down and drives the washboard 3 to move horizontally with the abutment of the inclined surface 11. The washboard 3 moves horizontally to complete the texture production process. During this process, no additional driving source is required to drive the washboard 3 to move horizontally. The structure is more simplified and simple, and the production cost is effectively reduced.

[0029] like Figures 1-2 As shown, the washboard 3 has a vertical surface 12 on the side near the insert 9. The insert 9 has a vertical surface 13 for abutting against the vertical surface 12. After the upper mold 2 moves down until the inclined surface 11 on the insert 9 abuts against the inclined surface 11 on the abutting block 10, the insert 9 continues to move down. At this time, the vertical surface 13 abuts against the vertical surface 12. This means that the horizontal movement stroke of the washboard 3 is completed. That is, when the vertical surface 13 abuts against the vertical surface 12, the insert 9 drives the washboard 3 to move horizontally to complete a stroke of one circumference of the workpiece 7. This effectively controls the horizontal driving stroke of the washboard 3 and avoids the inaccurate horizontal movement position of the washboard 3 from affecting the final texture production effect.

[0030] like Figures 1-3 As shown, a return cylinder 14 is fixedly installed on one side of the base 1. The output end of the return cylinder 14 is connected to the washboard 3 to drive the washboard 3 to move horizontally and reset, so as to produce the texture on the next workpiece 7 and realize the automatic reset of the washboard 3.

[0031] like Figures 1-4 As shown, a stripping cylinder 15 is provided on the support base 5 to drive the workpiece 7 out of the positioning post 6. The output end of the stripping cylinder 15 is provided with a push ring 16 sleeved on the positioning post 6. By pushing the push ring 16 to move, the workpiece 7 is pushed out of the positioning post 6 by means of the push ring 16, so as to realize the automatic stripping of the workpiece 7 on the positioning post 6.

[0032] like Figures 1-3 As shown, in this embodiment, the support base 5 is vertically elastically connected to the base 1. A mounting groove 17 is provided on the base 1. A connecting post 18 extending into the mounting groove 17 is fixed on the support base 5. A return spring 19 is provided between the connecting post 18 and the base 1 to connect the two. The return spring 19 is used to drive the support base 5 to move downwards and reset. Simultaneously, in this embodiment, the top wall of the textured portion 4 is higher than the top wall of the washboard 3, i.e., a recessed portion 20 is formed on the top wall of the washboard 3 for the positioning post 6 to move downwards. When the textured portion 4 abuts against the workpiece 7, the support base 5 is appropriately raised, and the return spring 19 is in a neutral position. In the compressed state, the top of the workpiece 7 abuts against the limiting wheel 8; after the rubbing board 3 moves horizontally to the limit position to complete the texture transfer, the recessed part 20 is located below the positioning post 6 and the workpiece 7. Under the action of the return spring 19, the support seat 5 moves down to reset. At this time, the positioning post 6 and the workpiece 7 move down appropriately, so that the top of the workpiece 7 no longer abuts against the limiting wheel 8, which facilitates the removal of the workpiece 7 from the positioning post 6; in addition, an inclined guide surface 21 is designed on the end of the rubbing board 3. The guide surface 21 facilitates the initial contact between the rubbing board 3 and the workpiece 7, guiding it more smoothly to the texture part 4.

[0033] like Figure 5As shown, in this embodiment, the textured part 4 on the washboard 3 consists of multiple evenly distributed protrusions 22. In other embodiments, the texture can also be a dragon pattern, flame pattern, rhombus pattern, or diamond pattern, or an alternating texture of large and small particles. This forms concave points on the surface of the workpiece 7 corresponding to the protrusions 22. The edge R of the concave point texture is greater than or equal to 0.2 mm, and the depth is greater than or equal to 0.5 mm. This design ensures that the test of the condom bursting is passed.

[0034] The working principle of this embodiment is as follows: First, the workpiece 7 is sleeved on the positioning post 6. Then, the upper mold 2 moves down and, under the action of the insert knife 9, drives the rubbing plate 3 to move horizontally until the texture part 4 on the rubbing plate 3 abuts against the surface of the workpiece 7. At this time, the positioning post 6 and the support seat 5 are appropriately lifted, and the top surface of the workpiece 7 abuts against the limiting wheels 8 on both sides. Under the combined action of the limiting wheels 8 and the rubbing plate 3, the surface of the workpiece 7 is slightly deformed, realizing the transfer of the texture on the rubbing plate 3 to the surface of the workpiece 7. After the rubbing plate 3 moves to its limit stroke under the action of the insert knife 9, the texture on the surface of the workpiece 7 is completed. At this time, the recessed part 20 is located below the workpiece 7 and the positioning post 6. Under the action of the return spring 19, the support seat 5 and the positioning post 6 move down appropriately, and the top of the workpiece 7 is separated from the abutment of the limiting wheel 8. Then, the ejector cylinder 15 works to remove the workpiece 7 from the positioning post 6. After the upper mold 2 moves up and resets, the return cylinder 14 drives the rubbing plate 3 to move horizontally and reset. This cycle can be repeated to realize the creation of the required texture on the surface of the workpiece 7.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A textured die for a stainless steel model used in condom production, characterized in that: The device includes a base (1), a washboard (3), a limiting wheel (8), and a positioning post (6). The washboard (3) is horizontally slidably connected to the base (1), the limiting wheel (8) is rotatably connected to the base (1), and the positioning post (6) is mounted on the base (1). The washboard (3) has a textured part (4). The positioning post (6) is higher than the washboard (3) and is used for positioning the workpiece (7). The limiting wheel (8) is located on both sides above the positioning post (6) and is used to press against the workpiece (7).

2. The texturing die for a stainless steel model used in condom production according to claim 1, characterized in that: The outer diameter of the positioning post (6) is 0.05-1mm smaller than the inner diameter of the workpiece (7).

3. The texturing die for a stainless steel model used in condom production according to claim 1, characterized in that: The positioning column (6) is connected to a support seat (5), which is vertically elastically connected to the base (1). A reset spring (19) is provided between the base (1) and the support seat (5) to connect the two. The reset spring (19) is used to drive the support seat (5) to move down and reset.

4. The texturing die for a stainless steel model used in condom production according to claim 3, characterized in that: The top wall of the textured part (4) is higher than the top wall of the washboard (3), and a recess (20) is formed on the top wall of the washboard (3) for the positioning post (6) to move downward.

5. The texturing die for a stainless steel model used in condom production according to claim 1, characterized in that: It also includes an upper mold (2), on which a cutting tool (9) is provided. The washboard (3) and the cutting tool (9) are provided with inclined surfaces (11) for mutual contact. The cutting tool (9) moves downward to drive the washboard (3) to move horizontally.

6. The texturing die for a stainless steel model used in condom production according to claim 5, characterized in that: The washboard (3) has a vertical surface (12) on the side near the inserter (9). The inserter (9) has a vertical surface (13) for contacting the vertical surface (12). When the vertical surface (13) contacts the vertical surface (12), the inserter (9) drives the washboard (3) to move horizontally to complete a stroke of one circumference of the workpiece (7).

7. The texturing die for a stainless steel model used in condom production according to claim 5, characterized in that: A return cylinder (14) is provided on one side of the base (1) to drive the washboard (3) to move horizontally and reset.

8. The texturing die for a stainless steel model used in condom production according to claim 3, characterized in that: The support base (5) is provided with a stripping cylinder (15) that drives the workpiece (7) to get out of the positioning post (6), and the output end of the stripping cylinder (15) is provided with a push ring (16) sleeved on the positioning post (6).