A method of manufacturing a textured stainless steel condom model

Abstract

The application discloses a manufacturing method of a textured stainless steel condom model, which comprises the following steps: preparing the head of the model front end seminal vesicle, designing a material belt which needs to be rolled, rolling the material belt on a rolling wheel to form a texture, rolling the material belt with the texture to form a joint-welded pipe, cutting the joint-welded pipe to form a round pipe, splicing and welding the round pipe and the head to obtain a stainless steel model, and efficiently and quickly forming multiple textures and convex points by using a stainless steel plate, so that mass production is achieved, time and energy are saved, and the formed texture is uniform and consistent, and the depth is controllable.

Description

Technical Field

[0001] This invention relates to the field of condom manufacturing models, and in particular to a method for manufacturing a textured stainless steel condom model. 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, baked at high temperature, then immersed again, and then dried. This process is repeated three times before the condom is demolded and inspected to complete the production of the condom.

[0003] Currently, condom production models are generally made of glass. However, many stages of condom production require heating. In the context of energy conservation and green manufacturing, energy conservation is an important demand and development trend for the future development of enterprises.

[0004] Large-particle condoms refer to condoms with granular or ribbed protrusions on the surface. During use, they can provide more noticeable friction and stimulation, enhance contact sensitivity, and can also prevent the spread of diseases to some extent.

[0005] Metal sheet materials offer stable dimensional accuracy, good thermal conductivity, corrosion resistance, and can be produced in various thicknesses. These characteristics perfectly meet the requirements of condom production: large-scale production, low processing costs, high production efficiency, lightweight, high rigidity and thermal conductivity, corrosion resistance, high temperature and oxidation resistance, good shock resistance, long lifespan, low maintenance, easy operation, and high profit margins.

[0006] Using stainless steel to make condom models instead of glass models is of great significance. Stainless steel condom models are made by grinding a single point, and it takes 0.5 to 3 hours to manufacture dozens or hundreds of particles for a single condom. At the same time, the consistency of the particles is very poor, with varying depths and sizes. In addition, mass production is not high, which does not conform to the trend of green manufacturing, energy conservation and emission reduction. Further improvement is needed. Summary of the Invention

[0007] To improve production efficiency and ensure good uniformity of the formed particles, this application provides a method for manufacturing a textured stainless steel condom mold.

[0008] This application provides a method for manufacturing a textured stainless steel condom model, using the following technical solution:

[0009] A method for manufacturing a textured stainless steel condom mold includes the following steps:

[0010] Prepare the head of the seminal vesicle at the front end of the model;

[0011] S1, Design for the strip that needs to be rolled;

[0012] S2, the material strip is pressed into a texture on the rollers;

[0013] S3, winding the textured strip into a tube using rollers;

[0014] S4, after rolling the pipe, the joint is welded to obtain a textured welded pipe;

[0015] S5, cut the textured welded pipe to obtain a round pipe fitting;

[0016] S6. Weld the round tube to the head to obtain a stainless steel model.

[0017] Optionally, the diameter of the round tube is D, and the length of the round tube after unfolding in the material strip design of step 1 is B = 3.14 * D, with a machining allowance of 4 mm on both sides.

[0018] Optionally, the thickness of the strip is 0.5-1.5 mm.

[0019] Optionally, the texture on the strip has pits and planes, with the pits transitioning to the planes by an arc and the arc R being greater than or equal to 0.3 mm.

[0020] Optionally, the texture depth is 0.05-1mm and the texture width is 0.5-10mm.

[0021] Optionally, the tube in step S3 is cold-bent and sizing is completed by a 0.6% reduction.

[0022] Optionally, step S4 uses laser welding, with the penetration depth extending through the entire material thickness, and the weld is then ground and polished.

[0023] Optionally, after obtaining the stainless steel model in step S6, it may undergo surface treatment, including polishing and sandblasting.

[0024] Optionally, nickel or chromium plating can be performed after the surface treatment is completed.

[0025] Optionally, the texture on the strip is segmented and spaced apart with margins.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The desired texture is first rolled on a continuously conveying belt, and then round tubes are obtained in batches through tube rolling, welding and cutting. The round tubes are then welded to the head to obtain a stainless steel model. This method efficiently and quickly utilizes stainless steel sheets to achieve the forming of multiple textures and raised dots, achieving high mass production, saving time and energy, and producing textures with good uniformity and consistency, and controllable depth.

[0028] 2. The pattern and position of the texture can be designed as needed, providing greater freedom and controllability in the design process;

[0029] 3. The textured pits transition seamlessly with the flat, rounded edges, effectively preventing stress points from forming in this area during burst capacity testing of condoms, thus preventing them from failing to meet standards and bursting.

[0030] 4. The texture adopts a segmented and spaced design with extra edges, so there is no texture at the joint of the rolled pipe, avoiding damage to the texture structure on the weld during subsequent welding. Attached Figure Description

[0031] Figure 1 This is a flowchart of Example 1.

[0032] Figure 2 This is a front view of the round tube fitting during the material strip design stage of Example 1.

[0033] Figure 3 This is a plan view of the circular tube unfolding during the material strip design stage of Example 1.

[0034] Figure 4 This is a plan view of the continuous splicing of the circular tube after it is unfolded during the material strip design stage of Example 1.

[0035] Figure 5 This is a schematic diagram of the material strip roller pressing in Example 1.

[0036] Figure 6 This is a schematic diagram of the head and the round tube fitting being spliced ​​together in Example 1.

[0037] Figure 7 This is a schematic diagram of a local structure at the texture location in Example 1.

[0038] Figure 8 This is a schematic diagram of the roller in Example 2.

[0039] Figure 9 yes Figure 8 Enlarged view of point A in the middle.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Head; 2. Round tube; 3. Continuous sheet; 4. Roller; 5. Material belt; 6. Upper wheel; 7. Lower wheel; 8. Dent; 9. Flat surface; 10. Inner core; 11. Adjusting column; 12. Slide groove; 13. Return spring; 14. First support part; 15. Second support part; 16. Third support part; 17. Fourth support part; 18. Transition part; 19. Protruding ring. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0043] A method for manufacturing a textured stainless steel condom mold, such as... Figure 1 As shown, the head 1 of the seminal vesicle at the front end of the stainless steel model is first prepared. The head 1 can be prepared by deep drawing.

[0044] Then, the rear section of the stainless steel model is prepared and formed. In actual production, the preparation of the head 1 and the round tube 2 can be carried out simultaneously and independently.

[0045] S1, Design the strip 5 that needs to be rolled;

[0046] like Figures 1-4 As shown, firstly, the diameter D and texture of the formed round tube 2 are required. Then, the round tube 2 is unfolded. After unfolding, the length B is 3.14 * the diameter D of the round tube 2, and a cutting allowance of 4mm is left on both sides. This processing allowance is mainly used for trimming. The length L in the figure is the length of the round tube 2 before it is turned over plus the trimming allowance of 4mm.

[0047] like Figure 4 As shown, individual material pieces are then continuously spliced ​​and arranged to form a continuous material piece 3, which is the structural shape that the subsequent material strip 5 needs to be formed.

[0048] S2, roll the material strip 5 onto the roller 4 to create a texture;

[0049] like Figure 5 As shown, according to the design of the strip 5 in step S1, a suitable width of strip 5 is determined, and a roller 4 with a corresponding texture is selected. Then, the strip 5 is continuously conveyed forward and rolled by the roller 4 on the roller press. The corresponding texture is transferred to the surface of the stainless steel strip 5. The roller 4 includes an upper roller 6 and a lower roller 7. The surface of the lower roller 7 has raised dots for forming the texture, and the upper roller 6 has corresponding concave dots for forming the texture, so as to realize the continuous transfer of the texture onto the strip 5. The strip 5 after rolling is then trimmed on both sides.

[0050] S3, the textured strip 5 is wound into a tube;

[0051] The process employs cold bending forming, with sizing achieved through a 0.6% reduction in diameter. The process temperature remains essentially constant at room temperature, resulting in accurate control of the outer diameter and minimal fluctuations, which helps to eliminate black skin.

[0052] S4, after rolling the pipe, the joint is welded to obtain a textured welded pipe;

[0053] The rolled strip 5 forms a cylindrical tube with a seam. The seam is welded using laser welding, with the weld penetration extending through the entire thickness of the material. The textured welded tube is then manufactured through heat treatment, sizing, and surface finishing.

[0054] S5, cut the textured welded pipe to obtain round pipe fitting 2.

[0055] S6, the round tube 2 is spliced ​​and welded to the head 1, and the weld is ground and polished to obtain a stainless steel model, such as... Figure 6 As shown.

[0056] Finally, the stainless steel model surface is treated, including polishing and sandblasting. After the surface treatment is completed, it is then electroplated with nickel or chromium.

[0057] In this embodiment, the stainless steel strip 5 has a thickness of 0.5-1.5mm, a texture depth of 0.05-1mm, and a texture width of 0.5-10mm. The shape of the texture can be selected according to actual needs; it can be evenly distributed raised dots, or a dragon pattern, diamond pattern, auspicious cloud pattern, or a combination of large and small raised dots, etc. Taking raised dot texture as an example, such as... Figure 7 As shown, after the texture is formed on the material strip 5, its surface includes pits 8 and a plane 9. The inner wall of the pit 8 must be smooth and free of burrs or other defects. This design is to prevent the mold from creating pinholes, failing to demold, or having glue particles sticking to the mold texture during the glue impregnation process. The pit 8 and the plane 9 must have a rounded transition with an arc radius R greater than or equal to 0.3mm. This effectively prevents the condom product from forming stress points in this area during the burst capacity test, thus preventing it from failing to meet the standard and bursting.

[0058] In this embodiment, the texture is formed by rolling sheet metal and then rolling it into a steel pipe structure. Therefore, the texture does not use a continuous texture that runs across the entire board surface, but adopts a segmented structure design with extra edges. As a result, there is no texture at the rolling joint, which avoids damage to the texture structure on the weld due to subsequent welding.

[0059] In summary, by first rolling the desired texture onto the continuously conveying belt 5, and then obtaining round tubes 2 in batches through tube rolling, welding, and cutting, and then welding the round tubes 2 to the head 1 to obtain a stainless steel model, the stainless steel sheet can be used efficiently and quickly to achieve the forming of multiple textures and raised dots, achieving high mass production, saving time and energy, and the uniformity and consistency of the formed texture are good, the depth is controllable, and the pattern and position of the texture can be designed according to needs, with better design freedom and controllability.

[0060] Example 2

[0061] A method for manufacturing a textured stainless steel condom mold, such as... Figures 8-9As shown, the main difference between this embodiment and Embodiment 1 lies in the structure of the roller 4. In this embodiment, the roller 4 is hollow inside and has an inner core 10 inserted through it. An adjusting column 11 is slidably connected to the roller 4 radially. The end of the adjusting column 11 protrudes from the outer surface of the roller 4 to form a protrusion for forming a texture. The roller 4 has a groove 12 for the adjusting column 11 to slide. As in Embodiment 1, since the texture is not continuous, the adjusting column 11 is evenly distributed around the circumference in this embodiment and occupies only one-quarter of the circumference of the roller 4. The inner core 10 is rotatably connected inside the roller 4. The outer wall of the inner core 10 is used to provide radial support for the adjusting column 11. The adjusting column 11 has a convex ring 19. A return spring 13 is provided between the convex ring 19 and the roller 4 to connect the two. The return spring 13 is in a compressed state and is used to drive the adjusting column 11 to move inward, keeping the inner end of the adjusting column 11 in contact with the surface of the inner core 10.

[0062] like Figure 8 and Figure 9 As shown, the inner core 10 is divided into four equal parts around its circumference to form four support parts with different outer diameters. The outer diameter of each support part decreases gradually in a clockwise direction. The support parts include a first support part 14, a second support part 15, a third support part 16, and a fourth support part 17 with successively decreasing outer diameters. In actual use, when it is necessary to adjust the protrusion of the texture, simply rotate the inner core 10 so that the support parts in different areas abut against the adjustment column 11 for support. This achieves multi-level adjustment of the protrusion of the texture, and the adjustment operation is simple and convenient. In addition, an inclined transition part 18 is provided at the step between adjacent support parts, so that the support parts can be switched more smoothly during rotation, thereby meeting the manufacturing needs of more textures with different depths, making it more practical and applicable.

[0063] In addition, the axial end of the inner core 10 is threaded to the roller 4. The rotation angle of the inner core 10 is limited by the threaded connection. That is, after the rotation adjustment of the inner core 10 is completed, it can be stably in the current state, which improves the stability of use after adjustment. The structure is simple and easy to implement, and no additional locking parts are required.

[0064] 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 method of manufacturing a textured stainless steel condom model, characterized by, The method comprises the following steps: Preparation of the head of the model front end (1); S1, design the material belt (5) to be rolled; S2, roll the material belt (5) on the rolling wheel (4) to form a texture; S3, roll the material belt (5) with the texture; S4, weld the joint after rolling to obtain a textured welded pipe; S5, cut the textured welded pipe to obtain a round pipe (2); S6, splice and weld the round pipe (2) with the head (1) to obtain a stainless steel model. The rolling wheel (4) is hollow inside and has an inner core (10) passing through it. The rolling wheel (4) is radially connected to an adjusting column (11) which passes through the outer surface of the rolling wheel (4) to form a convex point for forming a texture. A sliding groove (12) is provided on the rolling wheel (4) for the adjusting column (11) to slide. The adjusting column (11) is evenly distributed around the circumference and occupies one quarter of the circumference of the rolling wheel (4). The inner core (10) is rotationally connected inside the rolling wheel (4). The outer wall of the inner core (10) is used to radially support the adjusting column (11). The adjusting column (11) has a convex ring (19) on it. A return spring (13) is provided between the convex ring (19) and the rolling wheel (4) to drive the adjusting column (11) to move inward and keep the inner end of the adjusting column (11) in contact with the surface of the inner core (10) at all times. The inner core (10) is equally divided into four support portions with different outer diameters around the circumference. The outer diameters of the support portions decrease in the clockwise direction. The support portions include a first support portion (14), a second support portion (15), a third support portion (16), and a fourth support portion (17) with decreasing outer diameters.

2. The method of claim 1, wherein: The diameter of the round pipe (2) is D. The length of the round pipe (2) after being unfolded in the material belt design of step 1 is B=3.14*D, and there is a 4mm processing allowance on both sides.

3. The method of claim 1, wherein: The thickness of the material belt (5) is 0.5-1.5mm.

4. The method of claim 1, wherein: The texture on the material belt (5) has a concave (8) and a flat (9). The concave (8) and the flat (9) are circularly transitioned with an arc radius R greater than or equal to 0.3mm.

5. The method of claim 1, wherein: The depth of the texture is 0.05-1mm, and the width of the texture is 0.5-10mm.

6. The method of claim 1, wherein: The pipe rolling in step S3 adopts cold bending forming, and the diameter is reduced by 0.6% to complete the sizing.

7. The method of claim 1, wherein: Step S4 uses laser welding, and the penetration depth penetrates the entire material thickness. The weld is polished.

8. The method of claim 1, wherein: After obtaining the stainless steel model in step S6, surface treatment is performed, including polishing and sandblasting.

9. A method of manufacturing a textured stainless steel condom model according to claim 8, characterized in that: After surface treatment, electroplating nickel or electroplating chromium is performed.

10. The method of claim 1, wherein: The texture on the material belt (5) is distributed in segments with a margin.

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