Scissor pin production mold for keys

By using modular design of mold parts, the high cost and cumbersome maintenance problems caused by multiple sets of molds in traditional keyboard key production lines have been solved, achieving cost reduction and efficiency improvement.

CN224240219UActive Publication Date: 2026-05-15SHENZHEN HANGSHI ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HANGSHI ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-04-24
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional keyboard key production lines require the development of multiple sets of molds for scissor-switch keys of different sizes, resulting in high production costs and cumbersome and time-consuming maintenance.

Method used

The mold parts are modularly designed, and the size of the scissor feet can be adjusted by splicing the first and second size adjustment modules and the limit plate, which reduces the requirements for the entire mold.

Benefits of technology

It reduced mold production costs, improved product line scheduling efficiency, and simplified mold maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224240219U_ABST
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Abstract

The utility model belongs to the technical field of production dies, and provides a key scissor foot production die which comprises a first die body and a second die body. The second mold body is detachably connected with the first mold body, at least one of the first mold body and the second mold body is provided with a mold set, and the mold set comprises a first size adjusting module, a first injection molding module and a second injection molding module; the first injection molding module and the second injection molding module are arranged on the two sides of the first size adjusting module in the first direction, and the first size adjusting module is detachably connected between the first injection molding module and the second injection molding module. Injection molding channels are formed in one sides of the first size adjusting module, the first injection molding module and the second injection molding module in the second direction, the injection molding channels are communicated end to end to form an injection molding groove, and the first direction is perpendicular to the second direction. And the size of the product is changed by splicing the parts. And the product line transferring efficiency is improved, and the mold production cost is effectively reduced.
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Description

Technical Field

[0001] This application belongs to the field of mold manufacturing technology, and in particular relates to a scissor-type button manufacturing mold. Background Technology

[0002] Keyboard keys typically consist of a base, scissor-switch leads, and a key cover, with the scissor-switch leads being the most important and complex component. Currently, because keyboard keys of different product types often have varying sizes, scissor-switch lead structures with corresponding widths and lengths are required.

[0003] Traditional keyboard production lines typically require the development of corresponding molds for different sizes of scissor-switch mechanisms. Therefore, producing multiple sizes of scissor-switch mechanisms necessitates developing multiple sets of molds of varying sizes. This significantly increases production costs, and mold maintenance is also cumbersome and time-consuming.

[0004] Therefore, the aforementioned technical deficiencies urgently need to be addressed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a scissor-switch pin production mold for buttons, which aims to reduce the production cost of the scissor-switch pin production mold for buttons and improve the efficiency of product line scheduling.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: This application provides a scissor-switch pin production mold for buttons, including:

[0007] First mold body;

[0008] The first mold body and the second mold body are detachably connected. At least one of the first mold body and the second mold body is provided with at least one mold group. The mold group includes a first size adjustment module, a first injection mold group and a second injection mold group. The first injection mold group and the second injection mold group are disposed on both sides of the first size adjustment module in a first direction. The first size adjustment module is detachably connected between the first injection mold group and the second injection mold group. The first size adjustment module is used to adjust the distance between the first injection mold group and the second injection mold group.

[0009] The first size adjustment module, the first injection molding module and the second injection molding module each have an injection channel on one side of the second direction. The injection channels are connected end to end to form an injection groove, which is used to injection mold scissor-foot workpieces. The first direction is perpendicular to the second direction.

[0010] In this embodiment, at least one of the first mold body and the second mold body is provided with a plurality of mold groups, the plurality of mold groups are arranged in a row, and each of the plurality of mold groups is provided with an injection groove.

[0011] In this embodiment, the first size adjustment module is further configured with second size adjustment modules on both sides in the first direction, the first injection molding module includes a first injection block and a second injection block, and the second injection molding module includes a third injection block and a fourth injection block.

[0012] The first and second injection blocks are symmetrically arranged on both sides of the second size adjustment module in the third direction. The third and fourth injection blocks are symmetrically arranged on both sides of another second size adjustment module in the third direction. The second size adjustment module is used to adjust the length of the injection groove in the third direction. The first, second, third, and fourth injection blocks are used to injection mold the four corner structures of the scissor-foot workpiece.

[0013] The first and second directions are both perpendicular to the third direction.

[0014] In this embodiment, two second size adjustment modules are symmetrically arranged on both sides of the first size adjustment module in the first direction.

[0015] In this embodiment, at least one of the first mold body and the second mold body is detachably connected to an injection molding module. The injection molding module is used to inject plastic into the injection tank. The injection molding module is provided with a plurality of injection tubes, and the injection molding module is connected to the injection tank through the plurality of injection tubes.

[0016] In this embodiment, the first injection block, the second injection block, the third injection block and the fourth injection block are all provided with injection holes, which are connected to the injection tube.

[0017] In this embodiment, at least one of the first mold body and the second mold body is provided with a limiting groove, which is used to accommodate the mold assembly.

[0018] In this embodiment, the opening of the limiting groove faces one side of the injection molding groove.

[0019] In this embodiment, at least one first limiting block and at least one second limiting block are provided in the limiting groove. The first limiting block extends along a first direction, and the second limiting block extends along a second direction. The first limiting block and the second limiting block are detachably connected to the side wall of the limiting groove.

[0020] The first and second limiting blocks are both used to fill the gaps in the limiting grooves of the mold assembly.

[0021] Compared with existing technologies, this application provides a scissor-switch mechanism production mold for buttons. This invention modularizes the mold components, allowing for changes in product size through component assembly. When adjusting the scissor-switch size, only the first size adjustment module, the second size adjustment module, and the corresponding first and second limiting plates need to be replaced. This eliminates the need to develop a complete injection mold with the corresponding dimensions. This effectively reduces mold production costs, improves product line efficiency, and allows for direct replacement of damaged parts during mold maintenance, saving time and effort. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a scissor-type button production mold provided in this embodiment;

[0024] Figure 2 This is an exploded view of a scissor-switch pin manufacturing mold for buttons provided in this embodiment;

[0025] Figure 3 This is an exploded view of the first mold body of a scissor-switch pin production mold for buttons provided in this embodiment;

[0026] Figure 4 This is a schematic diagram of the overall structure of a mold assembly for producing a scissor-switch pin for a button, provided in this embodiment.

[0027] Figure 5 This is an exploded view of a mold assembly for producing a scissor-switch mechanism for a button, as provided in this embodiment.

[0028] In the diagram: 1. First mold body; 11. Mold assembly; 111. First size adjustment module; 112. Second size adjustment module; 113. First injection molding module; 1131. First injection block; 01. Injection channel; 02. Injection groove; 03. Injection hole; 1132. Second injection block; 114. Second injection molding module; 1141. Third injection block; 1142. Fourth injection block; 2. Second mold body; 21. Limiting groove; 22. First limiting block; 23. Second limiting block; 3. Injection module; 31. Injection tube; 4. Scissor-foot workpiece. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0033] This utility model provides, for example Figure 1 , Figure 2 and Figure 4The illustration shows a scissor-type button production mold for injection molding scissor-type workpieces 4. The main structure of this invention includes a first mold body 1 and a second mold body 2, which are detachably connected. At least one of the first mold body 1 and the second mold body 2 is provided with at least one mold assembly 11. In some embodiments, to accommodate the arc shape of both sides of the scissor-type workpiece 4, corresponding mold assemblies 11 are typically provided on both the first mold body 1 and the second mold body 2. Before injection molding, the first mold body 1 and the second mold body 2 need to be combined, with the mold assembly 11 located between them, thus forming a closed cavity in the injection groove 02 on the mold assembly 11. After the scissor-type workpiece 4 is injection molded, the first mold body 1 and the second mold body 2 can be separated to remove the molded scissor-type workpiece 4. The main utility model of this application lies in the modular design of the mold assembly 11. Specifically, the mold assembly 11 includes a first size adjustment module 111, a first injection mold assembly 3113, and a second injection mold assembly 3114. The first injection mold assembly 3113 and the second injection mold assembly 3114 are disposed on both sides of the first size adjustment module 111 in a first direction. The first size adjustment module 111 is detachably connected between the first injection mold assembly 3113 and the second injection mold assembly 3114. The first size adjustment module 111 is used to adjust the distance between the first injection mold assembly 3113 and the second injection mold assembly 3114. Therefore, when it is necessary to produce a scissor leg with a longer dimension in the first direction, it is only necessary to replace the first size adjustment module 111 with a larger dimension in the first direction and the corresponding first and second limiting plates.

[0034] The first size adjustment module 111, the first injection molding module 3113, and the second injection molding module 3114 each have an injection channel 01 on one side in the second direction. The injection channels 01 are connected end-to-end to form an injection groove 02, which is used for injection molding the scissor-foot workpiece 4. The first direction is perpendicular to the second direction. Figure 4 As shown.

[0035] It's important to note that traditional keyboard key production lines typically require developing corresponding production molds for different sizes of scissor-switch mechanisms. Therefore, producing multiple sizes of scissor-switch mechanisms necessitates developing multiple sets of different scissor-switch production molds. This significantly increases production costs, and mold maintenance is also quite cumbersome and time-consuming.

[0036] This invention modularizes mold components, allowing for changes in product size through component assembly. When adjusting the scissor leg size, only the first size adjustment module 111, the second size adjustment module 112, and the corresponding first and second limiting plates need to be replaced. This eliminates the need to develop a complete injection mold for the corresponding dimensions. This effectively reduces mold production costs, improves product line efficiency, and allows for direct replacement of damaged parts during mold maintenance, saving time and effort.

[0037] It is understood that at least one of the first mold body 1 and the second mold body 2 is provided with at least one mold group 11. In some embodiments, at least one of the first mold body 1 and the second mold body 2 is provided with a plurality of mold groups 11, which may be a plurality of mold groups 11 of the same size and model, or a plurality of mold groups 11 of multiple sizes and models.

[0038] Furthermore, such as Figure 2 and Figure 3 As shown, at least one of the first mold body 1 and the second mold body 2 is provided with a plurality of mold groups 11, which are arranged in a plurality of mold groups 11, and each of the plurality of mold groups 11 is provided with an injection groove 02. It can be understood that the scissor-leg workpiece 4 has a small structure. In order to improve the efficiency of injection molding production of scissor-legs, in this embodiment, a plurality of mold groups 11 are provided in a set of mold bodies (first mold body 1 and second mold body 2). During each injection, the injection grooves 02 on the plurality of mold groups 11 can be injected simultaneously, so that multiple scissor-leg workpieces 4 are formed at the same time.

[0039] Furthermore, such as Figure 4 and Figure 5 As shown, the first size adjustment module 111 is provided with a second size adjustment module 112 on both sides in the first direction, the first injection molding module 3113 includes a first injection block 1131 and a second injection block 1132, and the second injection molding module 3114 includes a third injection block 1141 and a fourth injection block 1142.

[0040] The first injection block 1131 and the second injection block 1132 are symmetrically arranged on both sides of the second size adjustment module 112 in the third direction. The third injection block 1141 and the fourth injection block 1142 are symmetrically arranged on both sides of another second size adjustment module 112 in the third direction. The second size adjustment module 112 is used to adjust the length dimension of the injection groove 02 in the third direction. The first injection block 1131, the second injection block 1132, the third injection block 1141 and the fourth injection block 1142 are respectively used to injection mold the four corner structures of the scissor-foot workpiece 4.

[0041] Wherein, both the first and second directions are perpendicular to the third direction, such as Figure 4As shown.

[0042] It is understandable that the length and width of the scissor-switch mechanism on keyboard keys of different sizes may vary. Therefore, in this embodiment, in addition to adjusting the length of the scissor-switch workpiece 4 in the first direction, the length of the scissor-switch workpiece 4 in the third direction can also be adjusted. When performing mold adaptation assembly, for example, if it is necessary to produce a scissor-switch with a longer dimension in the third direction, it is only necessary to replace the second dimension adjustment module 112 with a larger dimension in the third direction, as well as the corresponding first and second limiting plates.

[0043] Furthermore, two second size adjustment modules 112 are symmetrically arranged on both sides of the first size adjustment module 111 in the first direction.

[0044] Furthermore, at least one of the first mold body 1 and the second mold body 2 is detachably connected to an injection molding module 3. The injection molding module 3 is used to inject molding into the injection tank 02. The injection molding module 3 is provided with several injection tubes 31, and the injection molding module 3 is connected to the injection tank 02 through the several injection tubes 31. It can be understood that during injection molding production, the injection molding module 3 usually injects molding into the injection tank 02 simultaneously through several injection tubes 31, making the scissor-shaped molding more uniform and effectively improving production efficiency.

[0045] Furthermore, injection holes 03 are provided on the first injection block 1131, the second injection block 1132, the third injection block 1141, and the fourth injection block 1142, and the injection holes 03 are connected to the injection tube 31. It can be understood that by providing injection holes 03 on each injection block (first injection block 1131, second injection block 1132, third injection block 1141, and fourth injection block 1142), simultaneous injection of each injection block through the injection holes 03 can allow the material to enter the injection tank 02 more quickly and evenly, making the scissor-leg workpiece 4 form faster and more evenly.

[0046] Furthermore, at least one of the first mold body 1 and the second mold body 2 has a limiting groove 21 for accommodating the mold assembly 11. During the assembly of the entire mold, the matched mold assembly 11 is installed into the limiting groove 21. Then, based on the gap between the mold assembly 11 and the sidewall of the limiting groove 21, a first limiting block 22 of corresponding size and at least one second limiting block 23 are matched. This prevents the mold assembly 11 from becoming loose in the limiting groove 21, which would affect the injection molding production of the scissor-foot workpiece 4.

[0047] Furthermore, the opening of the limiting groove 21 faces one side of the injection groove 02. The opening of the injection groove 02 on the first mold body 1 faces the second mold body 2. Similarly, the opening of the injection groove 02 on the second mold body faces the first mold body 1. And the injection groove 02 on the first mold body 1 corresponds to the injection groove 02 on the second mold body 2.

[0048] Furthermore, at least one first limiting block 22 and at least one second limiting block 23 are provided in the limiting groove 21. The first limiting block 22 extends along a first direction, and the second limiting block 23 extends along a second direction. The first limiting block 22 and the second limiting block 23 are detachably connected to the side wall of the limiting groove 21.

[0049] The first limiting block 22 and the second limiting block 23 are both used to fill the gap of the mold assembly 11 in the limiting groove 21.

[0050] In summary, this application provides a scissor-switch mechanism for button production. This invention modularizes the mold components, allowing for changes in product size through component assembly. When adjusting the scissor-switch size, only the first size adjustment module 111, the second size adjustment module 112, and the corresponding first and second limiting plates need to be replaced. This eliminates the need to develop a complete injection mold for the corresponding size. This effectively reduces mold production costs, improves product line efficiency, and allows for direct replacement of damaged parts during mold maintenance, saving time and effort.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A scissor-switch pin manufacturing mold for buttons, characterized in that, include: First mold body; The first mold body and the second mold body are detachably connected. At least one of the first mold body and the second mold body is provided with at least one mold group. The mold group includes a first size adjustment module, a first injection mold group and a second injection mold group. The first injection mold group and the second injection mold group are disposed on both sides of the first size adjustment module in a first direction. The first size adjustment module is detachably connected between the first injection mold group and the second injection mold group. The first size adjustment module is used to adjust the distance between the first injection mold group and the second injection mold group. The first size adjustment module, the first injection molding module, and the second injection molding module each have an injection channel on one side of the second direction. The injection channels are connected end to end to form an injection groove. The injection groove is used for injection molding to produce scissor-foot workpieces. The first direction is perpendicular to the second direction.

2. The scissor-switch pin production mold for buttons according to claim 1, characterized in that, At least one of the first mold body and the second mold body is provided with a plurality of mold groups, the plurality of mold groups are arranged in a row, and each of the plurality of mold groups is provided with an injection groove.

3. The scissor-switch pin production mold for buttons according to claim 1, characterized in that, The first size adjustment module is provided with a second size adjustment module on both sides in the first direction. The first injection molding module includes a first injection block and a second injection block. The second injection molding module includes a third injection block and a fourth injection block. The first injection block and the second injection block are symmetrically arranged on both sides of the second size adjustment module in the third direction. The third injection block and the fourth injection block are symmetrically arranged on both sides of another second size adjustment module in the third direction. The second size adjustment module is used to adjust the length of the injection groove in the third direction. The first injection block, the second injection block, the third injection block and the fourth injection block are respectively used to injection mold the four corner structures of the scissor-foot workpiece. Wherein, both the first direction and the second direction are perpendicular to the third direction.

4. A scissor-switch pin production mold for buttons according to claim 3, characterized in that, Two second size adjustment modules are symmetrically arranged on both sides of the first size adjustment module in the first direction.

5. A scissor-switch pin production mold for buttons according to claim 3, characterized in that, At least one of the first mold body and the second mold body is detachably connected to an injection molding module. The injection molding module is used to inject plastic into the injection tank. The injection molding module is provided with a plurality of injection tubes, and the injection molding module is connected to the injection tank through the plurality of injection tubes.

6. A scissor-switch pin production mold for buttons according to claim 5, characterized in that, The first injection block, the second injection block, the third injection block and the fourth injection block are all provided with injection holes, and the injection holes are connected to the injection tube.

7. A scissor-switch pin production mold for buttons according to claim 1, characterized in that, At least one of the first mold body and the second mold body has a limiting groove, which is used to accommodate the mold assembly.

8. A scissor-switch pin production mold for buttons according to claim 7, characterized in that, The opening of the limiting groove faces one side of the injection molding groove.

9. A scissor-switch pin production mold for buttons according to claim 7, characterized in that, The limiting groove is provided with at least one first limiting block and at least one second limiting block. The first limiting block extends along a first direction, and the second limiting block extends along a second direction. The first limiting block and the second limiting block are detachably connected to the side wall of the limiting groove. Both the first limiting block and the second limiting block are used to fill the gaps in the limiting groove of the mold assembly.