Method for molding waterproof member and waterproof member molding apparatus

By forming multiple injection molded parts layer by layer on the surface of the injection molded part, and combining the designed flow divider and mold structure, the waterproof performance problem caused by the gaps in the injection molded parts is solved, and efficient molding and low-cost production of waterproof parts are achieved.

CN116872437BActive Publication Date: 2026-02-24YUTIANXUN COMM TECH (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202310686932.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-09
Publication Date
2026-02-24
Estimated Expiration
2043-06-09

AI Technical Summary

Technical Problem

In the prior art, the parting protrusion of the injection mold leads to an increase in the gap of the injection molded part, which affects the waterproof performance of the waterproof component, and liquid can easily seep in, causing damage to the device.

Method used

By injection molding a second injection molded part onto the surface of a first injection molded part, and then injection molding a third injection molded part onto the surface of the second injection molded part, the second injection molded part is combined with the first and third injection molded parts, respectively accommodating the parting protrusions of the other, thereby eliminating gaps and improving waterproof performance.

Benefits of technology

It effectively reduces the gap between injection molded parts, improves the waterproof performance of waterproof components, prevents damage to the device, and reduces production costs and processing difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a forming method of a waterproof component and a forming device of the waterproof component. The waterproof component comprises a first injection molding part, a plurality of second injection molding parts and a plurality of third injection molding parts. The forming method comprises the following steps: forming the first injection molding part by injection molding; forming the second injection molding part on the surface of the first injection molding part by injection molding; forming the third injection molding part on the surface of the second injection molding part by injection molding; and demolding the waterproof component. Thus, the second injection molding part is formed on the surface of the first injection molding part by injection molding, and the third injection molding part is formed on the surface of the second injection molding part by injection molding. The second injection molding part can accommodate the parting projection of the first injection molding part by combining the second injection molding part with the first injection molding part, and the third injection molding part can accommodate the parting projection of the second injection molding part by combining the third injection molding part with the second injection molding part. Compared with the prior art, the gap between the second injection molding part and the first injection molding part and the gap between the third injection molding part and the second injection molding part can be eliminated, so that the waterproof performance of the waterproof component can be improved.
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Description

Technical Field

[0001] This invention relates to the field of parts molding, and in particular to a method for molding a waterproof component, a computer-readable storage medium, and a waterproof component molding apparatus. Background Technology

[0002] In related technologies, when injection molds process injection molded parts, due to the presence of a mold parting surface in the injection mold, when the injection molded part is ejected from the injection mold, a parting protrusion exists on the surface of the injection molded part at the corresponding position of the mold parting surface. When multiple injection molded parts are assembled together to form a waterproof component, if the parting protrusion is located between two contacting injection molded parts, it will cause the gap between the two injection molded parts to increase. This will allow liquid to easily seep into the inside of the waterproof component from the gap between the two injection molded parts, affecting the waterproof performance of the waterproof component and consequently causing damage to the device with the waterproof component. Summary of the Invention

[0003] In order to reduce the influence of parting protrusions on the gap size between two contacting injection molded parts, eliminate the gap between multiple injection molded parts of a waterproof component, improve the waterproof performance of the waterproof component, and prevent damage to devices with waterproof components, this application provides a molding method for a waterproof component.

[0004] This application further proposes a computer-readable storage medium.

[0005] This application further proposes a waterproof component molding device.

[0006] The molding method for a waterproof component provided in this application adopts the following technical solution:

[0007] A method for molding a waterproof component, the waterproof component being suitable for injection molding, the waterproof component comprising a first injection molded part, a plurality of second injection molded parts, and a plurality of third injection molded parts, the second injection molded parts having a first outer wall opposite to the first injection molded part and a second outer wall opposite to the third injection molded parts, the first outer wall being adjacent to the second outer wall, the molding method comprising the following steps: injection molding to form the first injection molded part, and demolding the first injection molded part; injection molding the second injection molded part onto the surface of the first injection molded part to bond the first outer wall to the first injection molded part; injection molding the third injection molded part onto the surface of the second injection molded part to bond the second outer wall to the third injection molded part; and demolding the waterproof component.

[0008] By adopting the above technical solution, by molding the second injection molded part on the surface of the first injection molded part and molding the third injection molded part on the surface of the second injection molded part, the combination of the second injection molded part and the first injection molded part allows the second injection molded part to accommodate the parting protrusion of the first injection molded part, thereby reducing the influence of the parting protrusion on the size of the gap between the second injection molded part and the first injection molded part. The combination of the third injection molded part and the second injection molded part allows the third injection molded part to accommodate the parting protrusion of the second injection molded part, thereby reducing the influence of the parting protrusion on the size of the gap between the third injection molded part and the second injection molded part. Compared with the prior art, the gaps between the second injection molded part and the first injection molded part, and between the third injection molded part and the second injection molded part can be eliminated, thereby improving the waterproof performance of the waterproof component and effectively preventing damage to the device with the waterproof component.

[0009] Preferably, the injection molding process for forming the first injection molded part and demolding the first injection molded part includes: inputting a first injection molding material into a first injection molding machine; controlling the first injection molding machine to inject the first injection molding material into a first injection mold to form the first injection molded part; and removing the first injection molded part from the first injection mold.

[0010] By adopting the above technical solution, the first injection molded part can be processed and formed first, and the first injection molded part can serve as the processing base for the second injection molded part, and can also serve as the supporting skeleton for the waterproof component, thereby facilitating the further processing and forming of the waterproof component.

[0011] Preferably, before the second injection molded part is formed by injection molding on the surface of the first injection molded part, the method includes: placing the first injection molded part into the second injection mold of the second injection molding machine, so that the first injection molded part divides the injection space of the second injection mold into a first injection space and a second injection space along the radial direction of the waterproof component, wherein the first injection space is located inside the second injection space, and both the first injection space and the second injection space are suitable for filling with injection molding material.

[0012] By adopting the above technical solution, when processing multiple second injection molded parts on the outer surface of the first injection molded part, multiple independent molds are not required on the inner and outer sides of the second injection molded parts along the radial direction of the waterproof component. This reduces the number of mold loading and unmolding operations during the formation of the second injection molded parts, thereby improving the molding efficiency of the waterproof component and reducing its production cost.

[0013] Preferably, the plurality of second injection molded parts include a first sub-injection molded part and a second sub-injection molded part. The step of injection molding the second injection molded part on the surface of the first injection molded part includes: inputting a second injection molding material into a second injection molding machine; controlling the second injection molding machine to inject the second injection molding material into the first injection space to form the first sub-injection molded part, and controlling the second injection molding machine to inject the second injection molding material into the second injection space to form the second sub-injection molded part, wherein the first outer wall of the first sub-injection molded part is the outer peripheral wall of the first sub-injection molded part, and the first outer wall of the second sub-injection molded part is the inner peripheral wall of the second sub-injection molded part.

[0014] By adopting the above technical solution, the first outer wall of the first sub-injection part can be combined with the inner peripheral wall of the first injection part, allowing the first outer wall of the first sub-injection part to accommodate the parting protrusion of the inner peripheral wall of the first injection part. This reduces the influence of the parting protrusion of the inner peripheral wall of the first injection part on the size of the gap between the first sub-injection part and the first injection part. Similarly, the first outer wall of the second sub-injection part can be combined with the outer peripheral wall of the first injection part, allowing the first outer wall of the second sub-injection part to accommodate the parting protrusion of the outer peripheral wall of the first injection part. This also reduces the influence of the parting protrusion of the outer peripheral wall of the first injection part on the size of the gap between the second sub-injection part and the first injection part. This eliminates the gaps between the first sub-injection part and the first injection part, and between the second sub-injection part and the first injection part, thereby improving the waterproof performance of the waterproof component.

[0015] Preferably, the injection molding machine has a first injection port, and the first injection port is provided with a first diverter. The first diverter is connected to both the first injection space and the second injection space. Controlling the second injection molding machine to inject the second injection material into the first injection space and the second injection space respectively includes: controlling the second injection molding machine to inject the second injection material into the first diverter through the first injection port, so that the first diverter diverts the second injection material to the first injection space and the second injection space.

[0016] By adopting the above technical solution, and by setting a first diverter between the first injection port, the first injection space, and the second injection space, the second injection molding machine can simultaneously inject the second injection material into the first injection space and the second injection space through the first injection port. The first sub-injection part and the second sub-injection part can be processed and formed at the same time, thereby improving the molding efficiency of waterproof parts and reducing the processing cost of waterproof parts.

[0017] Preferably, before the third injection molded part is formed by injection molding on the surface of the second injection molded part, the process includes: controlling the mounting platform of the second injection molding machine to rotate, so that the mounting platform drives the first injection molded part and the second injection molded part, which are joined together, to rotate into the third injection mold of the second injection molding machine, wherein the first injection molded part and the second injection molded part together divide the injection space of the third injection mold into a third injection space and a fourth injection space along the radial direction of the waterproof component, the third injection space is located inside the fourth injection space, and both the third injection space and the fourth injection space are suitable for filling with injection molding material.

[0018] By adopting the above solution, workers no longer need to manually transfer partially molded waterproof components from the second injection mold to the third injection mold, which reduces the difficulty of transferring partially molded waterproof components to the third injection mold and thus further improves the molding efficiency of waterproof components.

[0019] Preferably, the plurality of third injection molded parts include a third sub-injection molded part and a fourth sub-injection molded part. The step of injection molding the third injection molded part onto the surface of the second injection molded part includes: inputting a second injection molding material into a second injection molding machine; controlling the second injection molding machine to inject the third injection molding material into the third injection space to form the third sub-injection molded part, and controlling the second injection molding machine to inject the third injection molding material into the fourth injection space to form the fourth sub-injection molded part, wherein the second outer wall of the first sub-injection molded part is the top wall of the first sub-injection molded part, and the second outer wall of the second sub-injection molded part is the top wall of the second sub-injection molded part.

[0020] By adopting the above technical solution, the second outer wall of the first sub-injection part can be combined with the bottom wall of the third sub-injection part, allowing the bottom wall of the third sub-injection part to accommodate the parting protrusion of the second outer wall of the first sub-injection part. This reduces the influence of the parting protrusion of the second outer wall of the first sub-injection part on the size of the gap between the first and third sub-injection parts. Similarly, the second outer wall of the second sub-injection part can be combined with the bottom wall of the fourth sub-injection part, allowing the bottom wall of the fourth sub-injection part to accommodate the parting protrusion of the second outer wall of the second sub-injection part. This also reduces the influence of the parting protrusion of the second outer wall of the second sub-injection part on the size of the gap between the second and fourth sub-injection parts. This eliminates the gaps between the first and third sub-injection parts and between the second and fourth sub-injection parts, thereby improving the waterproof performance of the waterproof component.

[0021] Preferably, the injection molding machine has a second injection port, and the second injection port is provided with a second diverter. The second diverter is connected to both the third injection space and the fourth injection space. Controlling the second injection molding machine to inject a third injection material into the third injection space and the fourth injection space respectively includes: controlling the second injection molding machine to inject the third injection material into the second diverter through the second injection port, so that the second diverter diverts the third injection material to the third injection space and the fourth injection space.

[0022] By adopting the above technical solution, and by setting a second diverter between the second injection port, the third injection space and the fourth injection space, the injection molding machine can simultaneously inject the third injection material into the third injection space and the fourth injection space through the second injection port. The third sub-injection part and the fourth sub-injection part can be processed and molded at the same time, thereby improving the molding efficiency of waterproof parts and reducing the processing cost of waterproof parts.

[0023] The computer-readable storage medium provided in this application adopts the following technical solution:

[0024] A computer-readable storage medium storing a waterproof component molding program thereon, which, when executed by a processor, implements the waterproof component molding method as described above.

[0025] By adopting the above technical solution, when the waterproof component is processed and molded, and when the stored waterproof component molding program is executed by the processor, the gaps between the second injection molded part and the first injection molded part, and between the third injection molded part and the second injection molded part can be eliminated, thereby improving the waterproof performance of the waterproof component and effectively preventing damage to the device with the waterproof component.

[0026] The waterproof component molding equipment provided in this application adopts the following technical solution:

[0027] A waterproof component molding apparatus includes a first injection molding machine and a second injection molding machine. The first injection molding machine is adapted to inject a first injection molding material into a first injection mold, and the second injection molding machine is adapted to inject a second injection molding material and a third injection molding material into a second injection mold and a third injection mold, respectively. The waterproof component molding apparatus further includes a memory, a processor, and a waterproof component molding program stored in the memory and executable on the processor. When the processor executes the waterproof component molding program, it implements the waterproof component molding method described above.

[0028] By adopting the above technical solution, when the waterproof component molding equipment processes the waterproof component and the stored waterproof component molding program is executed by the processor, the gaps between the second injection molded part and the first injection molded part, and between the third injection molded part and the second injection molded part can be eliminated, thereby improving the waterproof performance of the waterproof component and effectively preventing damage to the device with the waterproof component.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By injection molding a second injection molded part onto the surface of a first injection molded part and a third injection molded part onto the surface of the second injection molded part, the second injection molded part can accommodate the parting protrusion of the first injection molded part, thus reducing the influence of the parting protrusion on the size of the gap between the second and first injection molded parts. Similarly, the third injection molded part can accommodate the parting protrusion of the second injection molded part, further reducing the influence of the parting protrusion on the size of the gap between the third and second injection molded parts. Compared with the prior art, this eliminates the gaps between the second and first injection molded parts and between the third and second injection molded parts, thereby improving the waterproof performance of the waterproof component and effectively preventing damage to devices with waterproof components.

[0031] 2. By setting a first diverter between the first injection port, the first injection space and the second injection space, the injection molding machine can simultaneously inject the second injection material into the first injection space and the second injection space through the first injection port. The first sub-injection part and the second sub-injection part can be processed and formed at the same time, thereby improving the molding efficiency of the waterproof parts and reducing the processing cost of the waterproof parts.

[0032] 3. By setting a second diverter between the second injection port, the third injection space and the fourth injection space, the injection molding machine can inject the third injection material into the third injection space and the fourth injection space simultaneously through the second injection port. The third sub-injection part and the fourth sub-injection part can be processed and molded at the same time, thereby improving the molding efficiency of waterproof parts and reducing the processing cost of waterproof parts. Attached Figure Description

[0033] Figure 1 This is a flowchart of the molding method according to the embodiments of this application;

[0034] Figure 2 This is a schematic diagram of a waterproof component according to an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the waterproof component according to an embodiment of this application from another angle;

[0036] Figure 4 This is a cross-sectional view of the waterproof component according to an embodiment of this application;

[0037] Figure 5 This is a block diagram illustrating the processor, memory, communication interface, and communication bus according to embodiments of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Waterproof components;

[0040] 10. First injection molded part; 101. First positioning protrusion; 102. Second positioning protrusion;

[0041] 20. Second injection molded part; 201. First sub-injection molded part; 202. Second sub-injection molded part;

[0042] 30. Third injection molded part; 301. Third sub-injection molded part; 302. Fourth sub-injection molded part;

[0043] 1201, Processor; 1202, Communication interface; 1203, Memory; 1204, Communication bus. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0045] This application discloses a method for molding a waterproof component 100. The waterproof component 100 can be installed on a device that requires waterproofing, such as a speaker. The waterproof component 100 can be configured as the top cover of the speaker. The waterproof component 100 can prevent liquids (such as water) from seeping into the speaker and causing corrosion or short circuit damage to the electrical components inside the speaker, thereby improving the reliability of the speaker. The waterproof component 100 is suitable for injection molding. Specifically, a waterproof component molding device can be used to process the waterproof component 100. The following description uses the waterproof component 100 as the top cover of a speaker to illustrate this application.

[0046] See Figures 1-3 The waterproof component 100 includes a first injection molded part 10, a plurality of second injection molded parts 20, and a plurality of third injection molded parts 30. Any two of the first injection molded parts 10, second injection molded parts 20, and third injection molded parts 30 are different in color and / or material, for example, in... Figure 1In the illustrated embodiment, the first injection molded part 10 can be made of transparent or translucent resin material. The first injection molded part 10 can be constructed as a closed ring structure. When the first injection molded part 10 is installed on the speaker, the first injection molded part 10 can be opposite to the light component inside the speaker. The light generated by the light component can be irradiated to the outside of the speaker through the first injection molded part 10. In some embodiments, the light component can irradiate the first injection molded part 10 to form an irradiation area on the first injection molded part 10, and the irradiation area can move along the circumferential direction of the first injection molded part 10, thereby giving the speaker a horse-drawn lighting effect. Of course, in other embodiments, the light component can light up or turn off periodically, thereby giving the speaker a breathing lighting effect.

[0047] The second injection molded part 20 can be made of an opaque rigid material, such as black rigid ABS (Acrylonitrile Butadiene Styrene) resin. The second injection molded part 20 can form multiple mounting positions for the waterproof component 100 to mate with the audio connection, and it can also support the structure of the waterproof component 100, thereby increasing its structural strength. The plurality of second injection molded parts 20 include a first sub-injection molded part 201 and a second sub-injection molded part 202. Along the radial direction of the waterproof component 100, the first sub-injection molded part 201 is located inside the first injection molded part 10 and supports it from the inside. The second sub-injection molded part 202 is located outside the first injection molded part 10 and supports it from the outside. The first injection molded part 10 can be clamped between the first injection molded part 201 and the second injection molded part 202 through the cooperation of the first injection molded part 201 and the second injection molded part 202.

[0048] Further, see Figure 3 The first injection molded part 10 has a first positioning protrusion 101 extending toward the first sub-injection molded part 201 and a second positioning protrusion 102 extending toward the second sub-injection molded part 202. The first positioning protrusion 101 can extend into the first sub-injection molded part 201 and can restrict the movement of the first sub-injection molded part 201 relative to the first injection molded part 10 along the axial direction of the waterproof component 100. The second positioning protrusion 102 can extend into the second sub-injection molded part 202 and can restrict the movement of the second sub-injection molded part 202 relative to the first injection molded part 10 along the axial direction of the waterproof component 100. This can make the connection between the first injection molded part 10 and the first sub-injection molded part 201, and between the first injection molded part 10 and the second sub-injection molded part 202, more reliable.

[0049] The third injection molded part 30 can be made of an opaque soft material, such as black soft rubber. The third injection molded part 30 can cover the outer surface of the second injection molded part 20. When the waterproof component 100 is the top cover of the speaker, the third injection molded part 30 is located above the top wall of the second injection molded part 20. The third injection molded part 30 can improve the grip of the top of the speaker, and it can also form the speaker's buttons. Multiple third injection molded parts 30 can include a third sub-injection molded part 301 and a fourth sub-injection molded part 302. Along the radial direction of the waterproof component 100, the third sub-injection molded part 301 is located inside the first injection molded part 10 and covers the top of the first sub-injection molded part 201. The first sub-injection molded part 201 can support the third sub-injection molded part 301. The fourth sub-injection molded part 302 is located outside the first injection molded part 10 and covers the top of the second sub-injection molded part 202, which can support the fourth sub-injection molded part 302. The third sub-injection molded part 301 can form a button with an audio function, which can be pressed by the user to adjust the audio function. In some specific embodiments, the fourth sub-injection molded part 302 can also extend from above the top wall of the second sub-injection molded part 202 toward the outer peripheral wall of the second sub-injection molded part 202 to increase the coverage area of ​​the fourth sub-injection molded part 302 on the waterproof component 100.

[0050] Furthermore, each second injection molded part 20 has a first outer wall opposite to the first injection molded part 10, wherein the first outer wall of the first sub-injection molded part 201 can refer to the outer peripheral wall of the first sub-injection molded part 201, and the first outer wall of the second sub-injection molded part 202 can refer to the inner peripheral wall of the first sub-injection molded part 201. Each second injection molded part 20 also has a second outer wall opposite to the third injection molded part 30, with the first outer wall adjacent to the second outer wall, wherein the second outer wall of the first sub-injection molded part 201 can refer to the top wall of the first sub-injection molded part 201, and the second outer wall of the second sub-injection molded part 202 can refer to the top wall of the second sub-injection molded part 202. Each second injection molded part 20 is adapted to support the first injection molded part 10 and the third injection molded part 30 respectively through the first outer wall and the second outer wall.

[0051] See Figure 4 The molding method according to the embodiments of this application includes the following steps:

[0052] S1. Injection molding forms the first injection molded part, and the first injection molded part is demolded.

[0053] S2. A second injection molded part is formed by injection molding on the surface of the first injection molded part, so that the first outer wall is bonded to the first injection molded part.

[0054] S3. A third injection molded part is formed by injection molding on the surface of the second injection molded part, so that the second outer wall is bonded to the third injection molded part.

[0055] S4. Demold the waterproof parts.

[0056] In this process, a second injection molded part is formed by injection molding onto the surface of a first injection molded part. The first and second injection molded parts can form an integral part. The parting protrusion on the surface of the first injection molded part can occupy the molding area of ​​the second injection molded part. During molding, the first outer wall of the second injection molded part can fit against the surface of the first injection molded part. In other words, the first outer wall of the second injection molded part can create a recess that matches the shape of the parting protrusion on the surface of the first injection molded part. The parting protrusion can extend into the recess, allowing the second injection molded part to accommodate the parting protrusion of the first injection molded part. This can reduce the impact of the parting protrusion on the size of the gap between the second injection molded part and the first injection molded part. Furthermore, since the second injection molded part is injection molded on the surface of the first injection molded part, the second injection molded part can be cured together with the first injection molded part, thereby eliminating the gap between the second injection molded part and the first injection molded part. Liquid cannot seep into the waterproof component from the gap between the second injection molded part and the first injection molded part, and thus liquid cannot seep into the device with the waterproof component (i.e., audio equipment) to cause corrosion or short circuit damage to the electrical components inside the device, thereby improving the waterproof performance of the waterproof component.

[0057] Furthermore, by injection molding a third injection molded part onto the surface of the second injection molded part, the second injection molded part and the third injection molded part can form an integral part. The parting protrusion formed when the second injection molded part is injected onto the surface of the first injection molded part can occupy the molding area of ​​the third injection molded part. When the third injection molded part is molded, the second outer wall of the second injection molded part can fit against the surface of the third injection molded part. That is, the surface of the third injection molded part can produce a recess that matches the shape of the parting protrusion of the second outer wall of the second injection molded part. The parting protrusion can extend into the recess, allowing the third injection molded part to accommodate the second injection molded part. The parting protrusion can reduce the impact of the parting protrusion on the size of the gap between the second and third injection molded parts. Furthermore, since the third injection molded part is injection molded on the surface of the second injection molded part, the third injection molded part can be cured together with the second injection molded part, thereby eliminating the gap between the second and third injection molded parts. Liquid cannot seep into the waterproof component from the gap between the second and third injection molded parts, and thus liquid cannot seep into the device with the waterproof component (i.e., audio equipment) to cause corrosion or short circuit damage to the electrical components inside the device, thereby improving the waterproof performance of the waterproof component.

[0058] Further, injection molding forms the first injection molded part, and demolding the first injection molded part includes:

[0059] S101. Input the first injection molding material into the first injection molding machine.

[0060] S102. Control the first injection molding machine to inject the first injection material into the first injection mold to form the first injection molded part.

[0061] S103. Remove the first injection molded part from the first injection mold.

[0062] The first injection molding machine can be a single-color injection molding machine, and the first injection material can be a transparent or translucent resin material. The single-color injection molding machine has a material injection port suitable for injecting the first injection material into the first injection mold. The contour of the injection space of the first mold can match the appearance of the first injection molded part. The first injection molded part can be pre-formed and can serve as a processing base for a second injection molded part, which can be further processed on the formed first injection molded part. Furthermore, the first injection molded part can serve as a supporting skeleton for the waterproof component, thereby facilitating further processing of the waterproof component.

[0063] Further, before the second injection molded part is formed by injection molding on the surface of the first injection molded part, the process includes:

[0064] S201. The first injection molded part is placed into the second injection mold of the second injection molding machine, so that the first injection molded part divides the injection space of the second injection mold into a first injection space and a second injection space along the radial direction of the waterproof component. The first injection space is located inside the second injection space, and both the first injection space and the second injection space are suitable for filling with injection molding material.

[0065] This can also be understood as follows: the first injection molded part and the portion of the second injection mold near the inner side of the first injection molded part along the radial direction of the waterproof component together define the first injection space; the portion of the first injection molded part and the portion of the second injection mold near the outer side of the first injection molded part along the radial direction of the waterproof component together define the second injection space. That is, the first injection molded part can be used as part of the mold constituting the first injection space and the second injection space respectively. When processing multiple second injection molded parts on the outer surface of the first injection molded part, multiple independent injection molds do not need to be set on the inner and outer sides of the first injection molded part along the radial direction of the waterproof component. This can reduce the number of times the waterproof component is molded and demolded during the process of forming the second injection molded part, and also reduce the number of molds required to process the waterproof component. This can improve the molding efficiency of the waterproof component and reduce the production cost of the waterproof component.

[0066] Further, a second injection molded part is formed by injection molding on the surface of the first injection molded part, including:

[0067] S301. Input the second injection molding material into the second injection molding machine.

[0068] S302. Control the second injection molding machine to inject the second injection material into the first injection space to form the first sub-injection part, and control the second injection molding machine to inject the second injection material into the second injection space to form the second sub-injection part, wherein the first outer wall of the first sub-injection part is the outer peripheral wall of the first sub-injection part, and the first outer wall of the second sub-injection part is the inner peripheral wall of the second sub-injection part.

[0069] The second injection molding machine can be a two-color injection molding machine, and the second injection material can be black ABS resin. The two-color injection molding machine has two material injection ports, which can be a first injection port and a second injection port, respectively. The first injection port of the two-color injection molding machine is suitable for injecting the second injection material into the second injection mold. The outer contour of the first injection space can match the appearance of the first sub-injection part, and the first outer wall of the first sub-injection part can be combined with the inner peripheral wall of the first injection part. This allows the first outer wall of the first sub-injection part to accommodate the parting protrusion of the inner peripheral wall of the first injection part, thereby reducing the influence of the parting protrusion of the inner peripheral wall of the first injection part on the size of the gap between the first sub-injection part and the first injection part.

[0070] The outer contour of the second injection space can match the appearance of the second sub-injection part. The first outer wall of the second sub-injection part can be combined with the outer peripheral wall of the first injection part. This allows the first outer wall of the second sub-injection part to accommodate the parting protrusion of the outer peripheral wall of the first injection part, reducing the influence of the parting protrusion of the outer peripheral wall of the first injection part on the size of the gap between the second sub-injection part and the first injection part. This eliminates the gaps between the first and second sub-injection parts and between the first and second injection parts, making it difficult for liquid to seep into the waterproof component from between the first and second sub-injection parts and / or between the second and first injection parts, thereby improving the waterproof performance of the waterproof component.

[0071] Furthermore, a first diverter may be provided on the first injection port, the first diverter being connected to both the first injection space and the second injection space, controlling the second injection molding machine to inject the second injection material into the first injection space and the second injection space respectively, including:

[0072] S401. Control the second injection molding machine to inject the second injection material into the first diverter through the first injection port, so that the first diverter diverts the second injection material to the first injection space and the second injection space.

[0073] Designers can calculate the required amounts of second injection material for forming the first and second sub-injection molded parts using relevant design software. The first distribution component can then allocate the second injection material to the first and second injection spaces according to the ratio between the material usage amounts of the first and second sub-injection molded parts. It should be noted that since the injection molded part requires continuous and uniform feeding into the mold, the material distribution ratio of the first distribution component can be adjusted by changing the diameter and length of the flow path used to inject the second injection material into the first and second injection spaces.

[0074] By setting a first diverter between the first injection port, the first injection space, and the second injection space, the second injection molding machine can simultaneously inject second injection material into the first and second injection spaces through the first injection port. The first sub-injection part and the second sub-injection part can be processed and molded simultaneously. By adjusting the material distribution ratio of the first diverter to a suitable material distribution ratio, when the second injection material input by the second injection molding machine reaches the total amount of second injection material required by the first and second sub-injection parts, the diversion of the second injection material by the first diverter can ensure that the fullness of both the first and second sub-injection parts meets the molding requirements of the waterproof component. This can improve the molding efficiency and yield of the waterproof component, thereby reducing the processing cost of the waterproof component.

[0075] Further, before the third injection molded part is formed by injection molding on the surface of the second injection molded part, the process includes:

[0076] S501. Control the rotation of the mounting platform of the second injection molding machine so that the mounting platform drives the first injection molded part and the second injection molded part, which are joined together, to rotate into the third injection mold of the second injection molding machine. The first injection molded part and the second injection molded part together divide the injection space of the third injection mold into a third injection space and a fourth injection space along the radial direction of the waterproof component. The third injection space is located inside the fourth injection space. Both the third injection space and the fourth injection space are suitable for filling with injection molding material.

[0077] The mounting platform of the second injection molding machine is used to mount the second and third injection molds. The distances between the second and third injection molds and the central axis of the mounting platform are the same. This allows the mounting platform to remove the first and second injection molded parts from the second mold and load them into the third mold when it rotates around its central axis. This eliminates the need for manual transfer of partially molded waterproof components from the second mold to the third mold, reducing the difficulty of this process and further improving the molding efficiency of the waterproof components.

[0078] Furthermore, the first injection molded part, the first sub-injection molded part, and the portion of the third injection mold near the inner side of the first injection molded part along the radial direction of the waterproof component together define the third injection space. The first injection molded part, the second sub-injection molded part, and the portion of the second injection mold near the outer side of the first injection molded part along the radial direction of the waterproof component together define the fourth injection space. That is, the first injection molded part and the first sub-injection molded part can be used together as part of the mold constituting the third injection space, and the first injection molded part and the second sub-injection molded part can be used together as part of the mold constituting the fourth injection space. When multiple third injection molded parts are processed on the outer surface of the second injection molded part, multiple independent injection molds do not need to be set above the top wall of the second injection molded part. This can reduce the number of mold loading and unmolding times in the process of forming the third injection molded part of the waterproof component, and also reduce the number of molds required to process the waterproof component. In this way, the molding efficiency of the waterproof component can be improved, and the production cost of the waterproof component can be reduced.

[0079] Further, a third injection molded part is formed by injection molding on the surface of the second injection molded part, including:

[0080] S601. Input the second injection molding material into the second injection molding machine.

[0081] S602. Control the second injection molding machine to inject the third injection material into the third injection space to form the third sub-injection part, and control the second injection molding machine to inject the third injection material into the fourth injection space to form the fourth sub-injection part, wherein the second outer wall of the first sub-injection part is the top wall of the first sub-injection part, and the second outer wall of the second sub-injection part is the top wall of the second sub-injection part.

[0082] The third injection material can be black soft rubber, and the second injection port of the two-color injection molding machine is suitable for injecting the third injection material into the third injection mold. The outer contour of the third injection space can match the appearance of the third sub-injection part, and the second outer wall of the first sub-injection part can be combined with the bottom wall of the third injection part. This allows the bottom wall of the third sub-injection part to accommodate the parting protrusion of the second outer wall of the first sub-injection part, thereby reducing the influence of the parting protrusion of the second outer wall of the first sub-injection part on the size of the gap between the first and third sub-injection parts.

[0083] The outer contour of the fourth injection space can match the appearance of the fourth sub-injection part, and the second outer wall of the second sub-injection part can be combined with the bottom wall of the fourth sub-injection part. This allows the bottom wall of the fourth sub-injection part to accommodate the parting protrusion of the second outer wall of the second sub-injection part, reducing the influence of the parting protrusion of the second outer wall of the second sub-injection part on the size of the gap between the second and fourth sub-injection parts. This eliminates the gaps between the first and third sub-injection parts and between the second and fourth sub-injection parts, making it difficult for liquid to seep into the waterproof component from between the first and third sub-injection parts and / or between the second and fourth sub-injection parts, thereby improving the waterproof performance of the waterproof component.

[0084] Furthermore, a second diverter may be provided on the second injection port, the second diverter being connected to both the third and fourth injection spaces, controlling the second injection molding machine to inject the third injection material into the third and fourth injection spaces respectively, including:

[0085] S701. Control the second injection molding machine to inject the third injection material into the second diverter through the second injection port, so that the second diverter diverts the third injection material to the third injection space and the fourth injection space.

[0086] Designers can use relevant design software to calculate the required amounts of third injection material for forming the third and fourth sub-injection parts. The second distribution component can then allocate the third injection material to the third and fourth injection spaces according to the ratio between the material amounts of the third and fourth sub-injection parts. It should be noted that since the injection molded parts require continuous and uniform feeding into the mold, the material distribution ratio of the second distribution component can be adjusted by changing the diameter and length of the flow path used to inject the third injection material into the third and fourth injection spaces.

[0087] By setting a second diverter between the second injection port, the third injection space, and the fourth injection space, the second injection molding machine can simultaneously inject third injection material into the third and fourth injection spaces through the second injection port. The third and fourth sub-injection parts can be processed and molded simultaneously. By adjusting the material distribution ratio of the second diverter to a suitable ratio, when the third injection material input by the second injection molding machine reaches the total amount of third injection material required for the third and fourth sub-injection parts, the diversion of the third injection material by the second diverter can ensure that the fullness of both the third and fourth sub-injection parts meets the molding requirements of the waterproof component. This improves the molding efficiency and yield of the waterproof component, thereby reducing the processing cost.

[0088] To implement the molding method described in the above embodiments, this application further proposes a computer-readable storage medium storing a waterproof component molding program thereon. When the waterproof component molding program is executed by a processor, it implements the waterproof component molding method as described in the above embodiments. When the waterproof component is processed and molded, the stored waterproof component molding program, when executed by the processor, can eliminate gaps between the second injection molded part and the first injection molded part, and between the third injection molded part and the second injection molded part, thereby improving the waterproof performance of the waterproof component and effectively preventing damage to the device having the waterproof component.

[0089] To achieve the above embodiments, this application also proposes a waterproof component molding apparatus, which includes a first injection molding machine and a second injection molding machine. The first injection molding machine is adapted to inject a first injection molding material into a first injection mold to form a first injection molded part within the first injection mold. The second injection molding machine is adapted to inject a second injection molding material and a third injection molding material into a second injection mold and a third injection mold, respectively, to form a second injection molded part on the surface of the first injection molded part within the second injection mold, and to form a third injection molded part on the surface of the second injection molded part within the third injection mold. By cooperating with the first and second injection molding machines, waterproof components can be processed and molded.

[0090] The waterproof component molding equipment also includes a memory, a processor, and a waterproof component molding program stored in the memory and executable on the processor. When the processor executes the waterproof component molding program, it implements the molding method for the waterproof component as described in the above embodiments. By executing the waterproof component molding program stored in the memory, when the waterproof component molding equipment processes the waterproof component, the stored waterproof component molding program can eliminate gaps between the second injection molded part and the first injection molded part, and between the third injection molded part and the second injection molded part, thereby improving the waterproof performance of the waterproof component and effectively preventing damage to the device with the waterproof component.

[0091] like Figure 5 As shown, the waterproof component molding equipment includes at least one processor 1201, at least one communication interface 1202, at least one memory 1203, and at least one communication bus 1204. In the embodiments of this application, the number of processor 1201, communication interface 1202, memory 1203, and communication bus 1204 is at least one, and the processor 1201, communication interface 1202, and memory 1203 communicate with each other through the communication bus 1204.

[0092] The memory 1203 may be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The memory 1203 stores the program, and after receiving the execution instruction, the processor 1201 executes the program to implement the steps of the molding method for the waterproof component described in the above embodiments.

[0093] Processor 1201 may be an integrated circuit chip with signal processing capabilities. The aforementioned processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor.

[0094] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0095] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0096] 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 for molding a waterproof component, characterized in that, The waterproof component (100) is suitable for injection molding. The waterproof component (100) includes a first injection molded part (10), a plurality of second injection molded parts (20), and a plurality of third injection molded parts (30). The second injection molded parts (20) have a first outer wall opposite to the first injection molded part (10) and a second outer wall opposite to the third injection molded parts (30). The first outer wall is adjacent to the second outer wall. The molding method includes the following steps: The first injection molded part (10) is formed by injection molding, and the first injection molded part (10) is demolded; The second injection molded part (20) is formed by injection molding on the surface of the first injection molded part (10) so that the first outer wall is bonded to the first injection molded part (10); The third injection molded part (30) is formed by injection molding on the surface of the second injection molded part (20) so that the second outer wall is bonded to the third injection molded part (30); Demold the waterproof component (100); The injection molding process for forming the first injection molded part (10) and demolding the first injection molded part (10) includes: The first injection molding material is fed into the first injection molding machine; The first injection molding machine is controlled to inject the first injection material into the first injection mold to form the first injection molded part (10); The first injection molded part (10) is removed from the first injection mold; Before the second injection molded part (20) is formed by injection molding on the surface of the first injection molded part (10), the process includes: The first injection molded part (10) is placed into the second injection mold of the second injection molding machine so that the first injection molded part (10) divides the injection space of the second injection mold into a first injection space and a second injection space along the radial direction of the waterproof component (100), wherein the first injection space is located inside the second injection space, and both the first injection space and the second injection space are suitable for filling with injection molding material.

2. The molding method for a waterproof component according to claim 1, characterized in that, The plurality of second injection molded parts (20) include a first sub-injection molded part (201) and a second sub-injection molded part (202), wherein the second injection molded part (20) is formed by injection molding on the surface of the first injection molded part (10) includes: Input the second injection molding material into the second injection molding machine; The second injection molding machine is controlled to inject a second injection material into the first injection space to form the first sub-injection molded part (201), and the second injection molding machine is controlled to inject a second injection material into the second injection space to form the second sub-injection molded part (202), wherein the first outer wall of the first sub-injection molded part (201) is the outer peripheral wall of the first sub-injection molded part (201), and the first outer wall of the second sub-injection molded part (202) is the inner peripheral wall of the second sub-injection molded part (202).

3. The molding method for a waterproof component according to claim 2, characterized in that, The injection molding machine has a first injection port, and a first diverter is provided on the first injection port. The first diverter is connected to both the first injection space and the second injection space. Controlling the second injection molding machine to inject a second injection material into the first injection space and the second injection space respectively includes: The second injection molding machine is controlled to inject the second injection material into the first diverter through the first injection port, so that the first diverter diverts the second injection material to the first injection space and the second injection space.

4. The molding method for a waterproof component according to claim 2, characterized in that, Before the third injection molded part (30) is formed by injection molding on the surface of the second injection molded part (20), the process includes: The mounting platform of the second injection molding machine is controlled to rotate so that the mounting platform drives the first injection molded part (10) and the second injection molded part (20) which are joined together to rotate into the third injection mold of the second injection molding machine. The first injection molded part (10) and the second injection molded part (20) together divide the injection space of the third injection mold into a third injection space and a fourth injection space along the radial direction of the waterproof component (100). The third injection space is located inside the fourth injection space. Both the third injection space and the fourth injection space are suitable for filling with injection molding material.

5. The molding method for a waterproof component according to claim 4, characterized in that, The plurality of said third injection molded parts (30) include a third sub-injection molded part (301) and a fourth sub-injection molded part (302), wherein the injection molding of the third injection molded part (30) on the surface of the second injection molded part (20) includes: Input the second injection molding material into the second injection molding machine; The second injection molding machine is controlled to inject a third injection material into the third injection space to form the third sub-injection part (301), and the second injection molding machine is controlled to inject a third injection material into the fourth injection space to form the fourth sub-injection part (302), wherein the second outer wall of the first sub-injection part (201) is the top wall of the first sub-injection part (201), and the second outer wall of the second sub-injection part (202) is the top wall of the second sub-injection part (202).

6. The molding method for a waterproof component according to claim 5, characterized in that, The injection molding machine has a second injection port, and a second diverter is provided on the second injection port. The second diverter is connected to both the third injection space and the fourth injection space. Controlling the second injection molding machine to inject a third injection material into the third injection space and the fourth injection space respectively includes: The second injection molding machine is controlled to inject a third injection material into the second diverter through the second injection port, so that the second diverter diverts the third injection material to the third injection space and the fourth injection space.

7. A computer-readable storage medium, characterized in that, It stores a waterproof component molding program, which, when executed by a processor, implements the molding method of the waterproof component as described in any one of claims 1-6.

8. A waterproof component molding equipment, characterized in that, The equipment includes a first injection molding machine and a second injection molding machine. The first injection molding machine is adapted to inject a first injection material into a first injection mold, and the second injection molding machine is adapted to inject a second injection material and a third injection material into a second injection mold and a third injection mold, respectively. The waterproof component molding equipment further includes a memory, a processor, and a waterproof component molding program stored in the memory and executable on the processor. When the processor executes the waterproof component molding program, it implements the molding method of the waterproof component as described in any one of claims 1-6.

Citation Information

Patent Citations

  • Integrated injection forming method

    CN1982028A