Waterproof key and forming method thereof

Abstract

The invention relates to the technical field of key injection molding processing, in particular to a waterproof key and a forming method thereof. S1, a connecting part and a hard rubber part are subjected to injection molding; s2, the key part is subjected to injection molding through a second mold, and the key part is connected with the hard rubber part to form a first formed part; s3, a machine body part is subjected to injection molding; the machine body part is connected with the connecting part and the first forming part to form a second forming part; s4, a soft rubber part is formed through injection molding, and the soft rubber part is connected with the second forming piece to form a key product; according to the waterproof key and the forming method thereof, the injection molding processing procedure is optimized, step-by-step forming of key parts of a product is achieved, an integrally-formed waterproof key product can be obtained, the production cost is reduced, the production efficiency, the reliability of product functions and the sealing stability of a waterproof structure are improved, the key product quality consistency is high, and the product quality is improved. And batch production is facilitated.

Description

Technical Field

[0001] This invention relates to the field of button injection molding technology, specifically to a waterproof button and its molding method. Background Technology

[0002] In the injection molding process of button products, the existing method generally involves first molding the button and the part housing, and then gluing the button or key to the relevant housing. Conventional gluing methods have poor bonding effect, are easy to loosen and fall off, and can cause water and air leakage.

[0003] For products requiring waterproofing, existing technologies employ a one-piece injection molding method. However, for button products with complex structures, while ensuring stable and reliable button functionality, some cannot be molded using existing manufacturing techniques. This results in low yield rates for one-piece molded products, and also incurs high mold design and production costs, leading to low efficiency. Therefore, a solution is urgently needed to overcome these technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a molding method for waterproof buttons, which optimizes the injection molding process, realizes step-by-step molding of key components of the product, simplifies the mold structure, reduces production costs, improves production efficiency, product functionality reliability and waterproof structure sealing stability, resulting in high consistency of button product quality and facilitating mass production.

[0005] To achieve the above objectives, the present invention provides the following technical solution; A method for molding a waterproof button includes the following steps: S1: The connecting part and the rigid plastic part are injection molded using the first mold; S2: Place the hard plastic part in S1 into the second mold, and use the second mold to injection mold the button part. The molded button part is connected to the hard plastic part to form the first molded part. S3: Place the first molded part in S2 and the connecting part in S into the third mold, and use the third mold to injection mold the machine body; after molding, the machine body is connected with the connecting part and the first molded part to form the second molded part; S4. Place the second molding part from S3 into the fourth mold, and use the fourth mold to injection mold the soft rubber part. After molding, the soft rubber part is connected to the second molding part to form the button product. In steps S1-S4, the connections between the button part and the hard plastic part, the body part and the connecting part and the first molded part, and the soft plastic part and the second molded part are made by injection molding, and the button product is finally a one-piece molded structure.

[0006] Furthermore, the first mold includes a first punch and a first die. The first punch is provided with a hard plastic punch groove and a connecting punch groove for forming the hard plastic part and the connecting part. The first die is provided with a hard plastic die groove and a connecting die groove for forming the hard plastic part and the connecting part. In S1, during molding, the first punch and the first die close together, the hard plastic punch groove and the hard plastic die groove together form a hard plastic molding cavity, and the connecting punch groove and the connecting die groove together form a connecting molding cavity to form a complete hard plastic part and connecting part.

[0007] Furthermore, the hard plastic cavity groove is also provided with a hard plastic stepped groove, and the hard plastic punch groove is provided with a hard plastic molding block; the connecting cavity groove is provided with a connecting layer ring, and the connecting punch groove is provided with a connecting molding block. After the first punch and the first die are closed and formed, both the hard plastic part and the connecting part are annular components; the hard plastic part is formed with at least a first step and a second step by hard plastic stepped grooves; the inner ring of the hard plastic part is formed with a hard plastic connecting section by hard plastic molding block; the outer end face of the connecting part is formed with a connecting segment ring to form a first connecting section and a second connecting section, and the inner ring of the connecting part is formed with a connecting molding block to form a connecting positioning ring.

[0008] Furthermore, the hard plastic connecting section is injection molded to the button part to form a first molded part; the lower end face of the hard plastic part is installed on the first connecting section and part of the second connecting section of the connecting part, so that the first molded part is installed on the connecting part, and the molded body part is injection molded to form a second molded part with the second connecting end and the first step; the molded soft plastic part is injection molded to form a button product with the body part and the second step.

[0009] Furthermore, the second mold includes a second punch and a second die. The second punch is provided with a second punch groove for placing the hard plastic part and a button protrusion provided in the second punch groove for forming the button part. The second die is provided with a button die groove for forming the button part. In S2, during molding, the hard plastic punch groove is placed at the second punch groove, the second punch and the second die are closed, and the second punch groove and the button die groove are combined to form a button molding cavity to form the button part. The formed button part is connected with the hard plastic part to form the first molding part.

[0010] Furthermore, an inner column forming block is also provided in the second punch groove; when the second punch and the second die are molded together, the inner end face of the button part is formed into the button inner column by the inner column forming block; the button inner column is installed in the connecting positioning ring of the connecting part.

[0011] Furthermore, the third mold includes a third lower mold, a third upper mold, and a third auxiliary mold; the third lower mold is provided with a third lower mold cavity, and the third lower mold cavity is provided with a third positioning groove for placing the first molded part; the third upper mold is provided with a third upper mold cavity; In S3, during molding, the first molded part is placed at the third positioning groove, the connecting part is placed at the first molded part, the third lower mold, the third upper mold and the third auxiliary mold are closed, and the third lower mold cavity, the third upper mold cavity and the third auxiliary mold are enclosed to form the body molding cavity to form the body part; the molded body part is injection molded and connected to the second connecting end and the first step to form the second molded part.

[0012] Furthermore, the fourth mold includes a fourth lower mold, a fourth upper mold, and a fourth auxiliary mold; the fourth lower mold is provided with a fourth lower mold cavity, and the fourth lower mold cavity is provided with a fourth positioning groove for placing the second molded part; the fourth upper mold is provided with a fourth upper mold cavity; In S4, during molding, the second molded part is placed in the fourth lower mold cavity using the fourth positioning groove. The fourth lower mold, the fourth upper mold, and the fourth auxiliary mold are closed. The fourth lower mold cavity, the fourth upper mold cavity, and the fourth auxiliary mold enclose a soft rubber molding cavity to form the soft rubber part. The formed soft rubber part is injection molded and connected to the body part and the second step to form a button product.

[0013] The present invention also provides a waterproof button, which is formed by the above-mentioned molding method for waterproof buttons. The waterproof button product includes a hard plastic part, a connecting part, a button part, a body part, and a soft plastic part; the hard plastic part and the button part are injection molded together to form a first molded part, and the connecting part, the first molded part, and the body part are injection molded together to form a second molded part; the second molded part and the soft plastic part are injection molded together to form a button product.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This waterproof button molding method employs a first mold for separate molding of the basic hard plastic part and connecting parts. Then, a second, third, and fourth mold are used for interlocking molding to form the button part, body part, and soft plastic part, ultimately creating a one-piece button product. Through product disassembly and multiple batches of interlocking injection molding, colors can be freely combined and mixed to achieve color diversity. Furthermore, product disassembly allows for the processing and separation of key components, preventing defects in some parts from affecting the final overall product quality and improving the consistency of key components. Direct injection molding of components into a one-piece structure results in a tighter contact, improving waterproof performance and connection stability compared to traditional adhesive or hot-melt bonding, which is beneficial for mass production injection molding. Multiple injection molding processes allow for free selection of substrates for each component, adapting to waterproof products with different structures, characteristics, and application scenarios, improving overall product performance and production efficiency.

[0015] The molding method of this waterproof button optimizes the injection molding process and realizes the step-by-step molding of key components. Compared with the existing button assembly method, it can produce a waterproof button product with one-piece molding, which not only reduces production costs, but also improves production efficiency and product reliability. The sealing stability of the waterproof structure makes the button product have high quality consistency and is conducive to mass production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mold for the present invention.

[0017] Figure 2 This is a schematic diagram of the mold and product forming process of the present invention.

[0018] Figure 3 This is an exploded view of the structure of the first mold and its molded product according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the connecting part of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the rigid rubber part of the present invention.

[0021] Figure 6 This is an exploded view of the structure of the second mold and its molded product according to the present invention.

[0022] Figure 7 This is a schematic diagram of the button section of the present invention.

[0023] Figure 8 This is an exploded view of the structure of the third mold and its molded product according to the present invention.

[0024] Figure 9 This is an exploded view of the structure of the fourth mold and its molded product according to the present invention.

[0025] Figure 10 This is a cross-sectional view of the internal structure of the button product of the present invention.

[0026] Figure 11 This is an exploded view of the structure of the button product of the present invention. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] refer to Figure 1-11 As shown, the present invention provides a method for molding a waterproof button, comprising the following steps: S1: The connecting part 2 and the rigid plastic part 1 are injection molded using the first mold 10; S2: Place the hard plastic part 1 from S1 into the second mold 20, and use the second mold 20 to injection mold the button part 3. The molded button part 3 is connected to the hard plastic part 1 to form the first molded part 4. S3: Place the first molded part 4 in S2 and the connecting part 2 in S1 into the third mold 30, and use the third mold 30 to injection mold the machine body 5; after molding, the machine body 5 is connected with the connecting part 2 and the first molded part 4 to form the second molded part 6. S4. Place the second molding part 6 from S3 into the fourth mold 40, and use the fourth mold 40 to injection mold the soft rubber part 7. After molding, the soft rubber part 7 is connected to the second molding part 6 to form the button product 8. In steps S1-S4, the connections between the button part 3 and the hard plastic part 1, the body part 5 and the connecting part 2 and the first molded part 4, and the soft plastic part 7 and the second molded part 6 are made by injection molding, and the button product 8 is finally a one-piece molded structure.

[0029] The molding method of this waterproof button involves using a first mold 10 to separately mold the basic hard plastic part 1 and the connecting part 2. Then, a second mold 20, a third mold 30, and a fourth mold 40 are used for interlocking molding to form the button part 3, the body part 5, and the soft plastic part 7, respectively, to finally form an integrated button product 8. By disassembling the product and performing multiple batches of interlocking injection molding, colors can be freely matched and mixed to achieve color diversity. Furthermore, disassembling the product allows for the processing and separation of key parts, preventing defects in some parts from affecting the overall product quality and improving the consistency of key parts. The direct injection molding connection between components results in a tighter contact, which, compared to traditional adhesive or hot-melt bonding, improves waterproof performance and connection stability, and is beneficial for mass production injection molding. Moreover, multiple injection molding processes allow for the free selection of substrates for each component, making it suitable for waterproof products with different structures, characteristics, and scenarios, thereby improving overall product performance and overall production efficiency.

[0030] The molding method of this waterproof button optimizes the injection molding process and realizes the step-by-step molding of key components. Compared with the existing button assembly method, it can produce a waterproof button product with one-piece molding, which not only reduces production costs, but also improves production efficiency and product reliability. The sealing stability of the waterproof structure makes the button product have high quality consistency and is conducive to mass production.

[0031] In practical applications, after the button part 3 is machined, the first molded part 4 can be tested and data collected on various aspects such as waterproof performance, structural strength, dimensional data, and corrosion resistance. After ensuring the quality of key components of the product, subsequent product overmolding and injection molding can be carried out. When applied to the R&D and trial production stage, it can further reduce the economic and R&D costs brought about by directly molding complete products. When applied to the production capacity ramp-up stage, it can improve product consistency and increase product yield.

[0032] In this embodiment, the first mold 10 includes a first punch 101 and a first die 102. The first punch 101 is provided with a hard plastic punch groove 1011 and a connecting punch groove 1012 for molding the hard plastic part 1 and the connecting part 2. The first die 102 is provided with a hard plastic die groove 1021 and a connecting die groove 1022 for molding the hard plastic part 1 and the connecting part 2. In S1, during molding, the first punch 101 and the first die 102 are closed. The hard plastic punch groove 1011 and the hard plastic die groove 1021 form a hard plastic molding cavity, and the connecting punch groove 1012 and the connecting die groove 1022 form a connecting molding cavity to form a complete hard plastic part 1 and connecting part 2.

[0033] Specifically, by using a mold for two purposes, the space of the mold can be made reasonable to achieve batch production of small parts, thereby reducing costs and improving injection molding efficiency.

[0034] In this embodiment, the hard plastic cavity groove 1021 is further provided with a hard plastic stepped groove 10211, and the hard plastic punch groove 1011 is provided with a hard plastic molding block 10111; the connecting cavity groove 1022 is provided with a connecting layer ring 10221, and the connecting punch groove 1012 is provided with a connecting molding block 10121; after the first punch 101 and the first cavity 102 are molded together, both the hard plastic part 1 and the connecting part 2 are annular components; the hard plastic part 1 is formed with at least a first step 12 and a second step 13 using the hard plastic stepped groove 10211; the inner ring of the hard plastic part 1 is formed with a hard plastic connecting section 11 using the hard plastic molding block 10111; the outer end face of the connecting part 2 is formed with a first connecting section 22 and a second connecting section 23 using the connecting segment ring 10221, and the inner ring of the connecting part 2 is formed with a connecting molding block 10121 to form a connecting positioning ring 21.

[0035] Specifically, the rigid plastic part 1 and the connecting part 2 are molded into ring-shaped components, which is more conducive to the injection molding and installation of the button part 3; in the injection molding stage, the structure for connection and installation is directly molded, improving the efficiency and quality of connection and installation.

[0036] In this embodiment, the hard plastic connecting section 11 is injection molded to the button part 3 to form a first molded part 4; the lower end face of the hard plastic part 1 is installed on the first connecting section 22 and part of the second connecting section 23 of the connecting part 2 so that the first molded part 4 is installed on the connecting part 2; the molded body part 5 is injection molded to the second connecting end 22 and the first step 12 to form a second molded part 6; the molded soft plastic part 7 is injection molded to the body part 5 and the second step 13 to form a button product 8.

[0037] Specifically, during the injection molding of the first molded part 4, the rigid plastic connecting section 11 is a reserved connecting section to facilitate the molding of the button part 3, providing a guiding function for the molding of the button part 3 and the use of the product, thereby improving injection molding efficiency and quality. During the injection molding of the second molded part 6, the first connecting section 22 and the second connecting end 23 of the connecting part 2 provide support and stability for the rigid plastic part 1, and the machine body 5 is directly injection molded to the second connecting section 23 and the first step 13, strengthening the connection structure and further improving the waterproof performance.

[0038] In this embodiment, the second mold 20 includes a second punch 201 and a second die 202. The second punch 201 is provided with a second punch groove 2011 for placing the hard plastic part 1 and a button protrusion 2012 disposed in the second punch groove 2011 for forming the button part 3. The second die 202 is provided with a button die groove 2021 for forming the button part 3. In S2, during molding, the hard plastic punch groove 1011 is placed at the second punch groove 2011, the second punch 201 and the second die 202 are closed, and the second punch groove 2011 and the button die groove 2012 form a button forming cavity to form the button part 3. The formed button part 3 is connected with the hard plastic part 1 to form the first forming part 4.

[0039] Specifically, molding the key component button part 3 and the hard plastic part 1 in two stages not only allows for the selection of injection molding substrates of different colors and materials according to different performance requirements, but also improves the consistency of the overall product and enhances its waterproof performance.

[0040] In this embodiment, an inner column forming block 2012 is also provided in the second punch groove 2011; when the second punch 201 and the second die 202 are molded together, the inner end face of the button part 3 is formed into a button inner column 31 by the inner column forming block 2012; the button inner column 31 is installed in the connecting positioning ring 21 of the connecting part 2.

[0041] Specifically, when molding the body part 5, the connecting part 2 is installed on the button part 3 of the first molded part 4, and the connecting positioning ring 21 is installed at the inner post 31 of the button. The gap between the positioning connecting ring 21 and the inner post 31 of the button is L, and L≥0.015mm. When the button part 3 is in use, the connecting positioning ring 21 can provide lateral support for the inner post 31 of the button without affecting the pressing of the inner post 31. It is possible to design a button switch with a large stroke and improve the user experience. The key design structure is molded in stages. Compared with conventional injection molding methods, it is possible to achieve high-precision molding with small gaps, improve the manufacturing precision of the product, and break through the limitations of product design.

[0042] In this embodiment, the third mold 30 includes a third lower mold 302, a third upper mold 301, and a third auxiliary mold 303; the third lower mold 302 is provided with a third lower mold cavity 3021, and the third lower mold cavity 3021 is provided with a third positioning groove 3022 for placing the first molded part 4; the third upper mold 301 is provided with a third upper mold cavity 3011; in S3, during molding, the first molded part 4 is placed at the third positioning groove 3022, the connecting part 2 is placed at the first molded part 4, the third lower mold 302, the third upper mold 301, and the third auxiliary mold 303 are closed, and the third lower mold cavity 3021, the third upper mold cavity 3011, and the third auxiliary mold 303 enclose a body molding cavity to form the body part 5; the molded body part 5 is injection molded and connected to the second connecting end 22 and the first step 12 to form the second molded part 6.

[0043] Specifically, the third positioning groove 3021 can position the button part 3 of the first molded part 4, improving the feeding efficiency during injection molding; during molding, after the first molded part 4 and the connecting part 2 are placed, the third auxiliary mold 303 is installed at the third lower mold 302 and abuts against the connecting part 1 to position the connecting part 1 and the first molded part 4, avoiding displacement during the injection molding process. Finally, the third upper mold 301 is closed to realize that the third lower mold cavity 3021, the third upper mold cavity 3011 and the third auxiliary mold 303 are enclosed to form the body molding cavity.

[0044] In this embodiment, the fourth mold 40 includes a fourth lower mold 402, a fourth upper mold 401, and a fourth auxiliary mold 403; the fourth lower mold 402 is provided with a fourth lower mold cavity 4021, and the fourth lower mold cavity 4021 is provided with a fourth positioning groove 4022 for placing the second molded part 6; the fourth upper mold 401 is provided with a fourth upper mold cavity 4011; in S4, during molding, the second molded part 6 is placed in the fourth lower mold cavity 4021 and positioned by the fourth positioning groove 4022; the fourth lower mold 402, the fourth upper mold 401, and the fourth auxiliary mold 404 are closed; the fourth lower mold cavity 4021, the fourth upper mold cavity 4011, and the fourth auxiliary mold 404 enclose a soft rubber molding cavity to form a soft rubber part 7; the formed soft rubber part 7 is injection molded and connected to the body part 5 and the second step 13 to form a button product 8.

[0045] Specifically, the fourth positioning groove 4022 is used to place the button part 3 in the second molded part 6 to prevent the second molded part 6 from shifting as a whole. When molding the button product 8, the second molded part 6 is first placed in the fourth positioning groove 4022 of the fourth lower mold 402, and then the fourth auxiliary mold 404 is inserted into the body part 5 of the second molded part 6 to further improve the positioning capability and prevent shifting during the injection molding process. Then, the fourth upper mold 401 is closed to mold the soft rubber part 7. The separately molded soft rubber part 7 can be designed with different applications around the button according to the needs of different products, such as anti-slip, protection and easy grip functions. Step-by-step molding further broadens the application scenarios of the product.

[0046] The present invention also provides a waterproof button, which is formed by the above-mentioned molding method for waterproof buttons. The waterproof button product includes a hard plastic part 1, a connecting part 2, a button part 3, a body part 5, and a soft plastic part 7. The hard plastic part 1 and the button part 3 are injection molded together to form a first molded part 4. The connecting part 2, the first molded part 4, and the body part 5 are injection molded together to form a second molded part 6. The second molded part 6 and the soft plastic part 7 are injection molded together to form a button product 8.

[0047] The inner end face of the button part 3 is formed with a button inner post 31. The button inner post 31 has multiple weight-reducing grooves. The button inner post 31 with weight-reducing grooves reduces the overall weight of the button part 3 while providing good support. Compared with traditional adhesive or detachable connection, the integrated button inner post 31 can not only ensure the travel and feel of the button, but also further improve the strength of the overall structure of the button part 3, so that the button part 3 is balanced by force. The connecting part 2 is formed with a connecting positioning ring 21. The connecting positioning ring 21, together with the inner post 31 of the button, provides lateral support for the inner post 31 of the button without affecting the pressing of the inner post 31, thereby improving the user experience. It can further adapt to the design of large travel buttons and improve the stability and efficiency of the pressing process of the button part 3.

[0048] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by the spirit of the invention.

Claims

1. A method for molding a waterproof button, characterized in that, Includes the following steps: S1: The connecting part (2) and the hard plastic part (1) are injection molded using the first mold (10); S2: Place the hard plastic part (1) in S1 into the second mold (20), and use the second mold (20) to injection mold the button part (3). The molded button part (3) is connected to the hard plastic part (1) to form the first molded part (4). S3: Place the first molding part (4) in S2 and the connecting part (2) in S1 into the third mold (30), and use the third mold (30) to injection mold the machine body part (5); after molding, the machine body part (5) is connected with the connecting part (2) and the first molding part (4) to form the second molding part (6). S4. Place the second molding part (6) in S3 into the fourth mold (40), and use the fourth mold (40) to injection mold the soft rubber part (7). After molding, the soft rubber part (7) is connected to the second molding part (6) to form the button product (8). In steps S1-S4, the connection between the button part (3) and the hard plastic part (1), the body part (5) and the connecting part (2) and the first molded part (4), and the soft plastic part (7) and the second molded part (6) are made by injection molding, and the button product (8) is finally a one-piece molded structure.

2. The molding method for a waterproof button according to claim 1, characterized in that, The first mold (10) includes a first punch (101) and a first die (102). The first punch (101) is provided with a hard plastic punch groove (1011) and a connecting punch groove (1012) for molding the hard plastic part (1) and the connecting part (2). The first die (102) is provided with a hard plastic die groove (1021) and a connecting die groove (1022) for molding the hard plastic part (1) and the connecting part (2). In S1, during molding, the first punch (101) and the first die (102) are closed, the hard plastic punch groove (1011) and the hard plastic die groove (1021) are closed to form a hard plastic molding cavity, and the connecting punch groove (1012) and the connecting die groove (1022) are closed to form a connecting molding cavity, so as to form a complete hard plastic part (1) and connecting part (2).

3. The method for molding a waterproof button according to claim 2, characterized in that, The hard plastic cavity groove (1021) is further provided with a hard plastic stepped groove (10211), and a hard plastic molding block (10111) is provided in the hard plastic punch groove (1011); a connecting layer ring (10221) is provided in the connecting cavity groove (1022), and a connecting molding block (10121) is provided in the connecting punch groove (1012). After the first punch (101) and the first die (102) are molded together, the hard plastic part (1) and the connecting part (2) are both annular components. The hard plastic part (1) is formed with a hard plastic stepped groove (10211) to form at least a first step (12) and a second step (13). The inner ring of the hard plastic part (1) is formed with a hard plastic molding block (10111) to form a hard plastic connecting section (11). The outer end face of the connecting part (2) is formed with a connecting segment ring (10221) to form a first connecting section (22) and a second connecting section (23). The inner ring of the connecting part (2) is formed with a connecting molding block (10121) to form a connecting positioning ring (21).

4. The molding method for a waterproof button according to claim 3, characterized in that, The hard plastic connecting section (11) is injection molded to the button part (3) to form a first molded part (4); the lower end face of the hard plastic part (1) is installed on the first connecting section (22) and part of the second connecting section (23) of the connecting part (2) so that the first molded part (4) is installed on the connecting part (2); the molded body part (5) is injection molded to the second connecting end (22) and the first step (12) to form a second molded part (6); the molded soft plastic part (7) is injection molded to the body part (5) and the second step (13) to form a button product (8).

5. The molding method for a waterproof button according to claim 4, characterized in that, The second mold (20) includes a second punch (201) and a second die (202). The second punch (201) is provided with a second punch groove (2011) for placing the hard plastic part (1) and a button protrusion (2012) provided in the second punch groove (2011) for forming the button part (3). The second die (202) is provided with a button die groove (2021) for forming the button part (3). In S2, during molding, the hard plastic punch groove (1011) is placed at the second punch groove (2011), the second punch (201) and the second die (202) are closed, the second punch groove (2011) and the button die groove (2012) are enclosed to form a button molding cavity to form the button part (3), and the formed button part (3) and the hard plastic part (1) are connected to form the first molding part (4).

6. The method for molding a waterproof button according to claim 5, characterized in that, The second punch groove (2011) is also provided with an inner column forming block (2012); when the second punch (201) and the second die (202) are molded together, the inner end face of the button part (3) is formed into a button inner column (31) by the inner column forming block (2012); the button inner column (31) is installed in the connecting positioning ring (21) of the connecting part (2).

7. The method for molding a waterproof button according to claim 4, characterized in that, The third mold (30) includes a third lower mold (302), a third upper mold (301), and a third auxiliary mold (303); the third lower mold (302) is provided with a third lower mold cavity (3021), and the third lower mold cavity (3021) is provided with a third positioning groove (3022) for placing the first molded part (4); the third upper mold (301) is provided with a third upper mold cavity (3011); In S3, during molding, the first molding part (4) is placed in the third positioning groove (3022), the connecting part (2) is placed in the first molding part (4), the third lower mold (302), the third upper mold (301) and the third auxiliary mold (303) are closed, and the third lower mold cavity (3021), the third upper mold cavity (3011) and the third auxiliary mold (303) are enclosed to form the body molding cavity to form the body part (5); the molded body part (5) is injection molded and connected to the second connecting end (22) and the first step (12) to form the second molding part (6).

8. The method for molding a waterproof button according to claim 4, characterized in that, The fourth mold (40) includes a fourth lower mold (402), a fourth upper mold (401), and a fourth auxiliary mold (403); the fourth lower mold (402) is provided with a fourth lower mold cavity (4021), and the fourth lower mold cavity (4021) is provided with a fourth positioning groove (4022) for placing the second molded part (6); the fourth upper mold (401) is provided with a fourth upper mold cavity (4011); In S4, during molding, the second molded part (6) is positioned in the fourth lower mold cavity (4021) by the fourth positioning groove (4022). The fourth lower mold (402), the fourth upper mold (401), and the fourth auxiliary mold (404) are closed. The fourth lower mold cavity (4021), the fourth upper mold cavity (4011), and the fourth auxiliary mold (404) enclose a soft rubber molding cavity to form a soft rubber part (7). The formed soft rubber part (7) is injection molded and connected to the body part (5) and the second step (13) to form a button product (8).

9. A waterproof button, characterized in that, The waterproof button product is manufactured by molding the waterproof button using any one of claims 1 to 8. The waterproof button product includes a hard plastic part (1), a connecting part (2), a button part (3), a body part (5), and a soft plastic part (7). The hard plastic part (1) and the button part (3) are injection molded together to form a first molded part (4). The connecting part (2), the first molded part (4), and the body part (5) are injection molded together to form a second molded part (6). The second molded part (6) and the soft plastic part (7) are injection molded together to form a button product (8).

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