Multi-mold-cavity shell injection mold

Abstract

The utility model discloses a multi-mold-cavity shell injection mold which comprises an upper mold base, an upper mold plate, a lower mold plate and a lower mold base, an upper mold core, a left mold core and a right mold core which are distributed in a shape like a Chinese character'pin 'are arranged on the lower mold plate, and the layout allows two circuit breaker upper covers and two circuit breaker bases to be formed at the same time in the one-time injection molding process. And the production efficiency is obviously improved. Each upper mold core comprises two cover mold cavities used for forming an upper cover and is provided with first core pulling assemblies on the upper side and the lower side; the left mold core and the right mold core are each internally provided with a base mold cavity used for forming a base, second core pulling assemblies on the upper side and the lower side and third core pulling assemblies on the left side and the right side are arranged, and smooth demolding of a product is guaranteed. The upper die plate is provided with upper die cavities corresponding to the die cores. In addition, the overall size of the mold is reduced through compact and reasonable space utilization, so that the mold is compatible with an existing standard injection molding machine, and larger-tonnage equipment does not need to be purchased. According to the design, the product yield and quality are improved, and the production and development cost is effectively reduced.

Description

Technical Field

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[0001] The utility model relates to the technical field of molds, and specifically relates to a multi-cavity shell injection mold. Background Technique

[0002] In the field of forming mold structure design, especially for multi-cavity shell molds for high-precision plastic parts, traditional mold designs face a series of challenges. The common problems of the current C65 leakage protection shell molds in the market are: the number of cavities is relatively few, resulting in low production efficiency; the existing standard injection molding machines in enterprises (such as 160T Haitian injection molding machines) cannot accommodate molds of the size of conventional multi-cavity shells. This means that if a larger-tonnage machine is to be used, it will bring high costs and additional space requirements. In addition, in order to meet the demand for quickly responding to samples, enterprises also face the risk of increased costs while improving production efficiency, as well as the costs and risks brought by the possible abandonment of R & D solutions due to non-compliance with actual production conditions.

[0003] Traditional molds, due to the small number of cavities, the number of products produced within a single injection cycle is limited, making it difficult to meet the needs of mass production and resulting in low efficiency. In addition, simply increasing the number of cavities often increases the size of the mold, making the mold size unsuitable for the existing injection molding machine specifications of enterprises.

[0004] Therefore, how to increase the number of mold cavities without increasing the external dimensions of the mold and ensure that it can adapt to the existing injection molding machine has become an urgent problem to be solved. Content of the Utility Model

[0005] Aiming at the deficiencies in the background technique, the utility model provides a multi-cavity shell injection mold.

[0006] The technical solution adopted by the utility model is: a multi-cavity shell injection mold, including an upper mold base, an upper template, a lower template and a lower mold base. An upper mold core, a left mold core and a right mold core are arranged on the lower template. The upper mold core, the left mold core and the right mold core are distributed in a "pin" shape. A feeding component for feeding materials into the upper mold core, the left mold core and the right mold core is arranged on the upper mold base;

[0007] Two mold cavities for forming the upper cover are arranged side by side on the upper mold core, and a first core-pulling component is arranged on the upper and lower sides of the mold cavity for forming the upper cover;

[0008] One mold cavity for forming the base is arranged in each of the left mold core and the right mold core. A second core-pulling component is arranged on the upper and lower sides of the mold cavity for forming the base, and a third core-pulling component is arranged on the left and right sides of the mold cavity for forming the base;

[0009] Upper mold cavities corresponding to the upper mold core, the left mold core and the right mold core are arranged on the upper template.

[0010] Furthermore, the upper mold core, left mold core, and right mold core each include a mold core bottom shell fixedly connected to the lower mold plate and a mold core upper shell fixedly connected to the upper mold plate.

[0011] Furthermore, the core-pulling assembly one, core-pulling assembly two, and core-pulling assembly three each include a side baffle fixedly connected to the lower template, a slider slidably disposed between the two side baffles, a mold cavity side plate connected to the slider, and an inclined guide post slidably engaged with the slider. A guide groove is formed between the side baffle and the lower template. Guide steps that slidably engage with the guide groove are provided on both sides of the slider. The inclined guide post is connected to the upper template.

[0012] Furthermore, the slider of the second core-pulling assembly has an "L" shaped structure, and the side wall of the slider has a slope one. The inclined guide post of the second core-pulling assembly is connected to a connecting block that connects to the upper template. The connecting block is provided with a slope two that matches the slope one, and the connecting block is located above the slider.

[0013] Furthermore, the injection assembly includes an injection port, a main injection pipe connected to the injection port, and injection sub-pipes connected to the main injection pipe and connected to the upper mold core, left mold core, and right mold core.

[0014] The beneficial effects of this utility model are:

[0015] 1. Improved production efficiency: By adopting a triangular arrangement of the upper, left, and right mold cores, two circuit breaker covers and two circuit breaker bases can be molded simultaneously in a single injection molding process. This design doubles the number of products produced in a single injection molding cycle, significantly improving production efficiency and meeting the needs of mass production.

[0016] 2. Optimize space utilization and maintain mold size: Although the number of mold cavities has increased, the increase in the number of cavities has been successfully achieved without increasing the overall size of the mold through a compact and reasonable arrangement (such as merging two cover products into one insert in the upper mold core) and an optimized core-pulling component design. This not only ensures that the mold can be adapted to existing standard injection molding machines.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the upper mold core, left mold core, and right mold core on the lower template.

[0020] Figure 3This is a schematic diagram of the upper mold core, left mold core, and right mold core.

[0021] Figure 4 This is a schematic diagram of the lower template and core-pulling component one.

[0022] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0023] Figure 6 This is a schematic diagram of the two sliders, inclined guide posts, and connecting blocks of the core-pulling assembly.

[0024] Figure 7 This is a schematic diagram of the cover mold cavity and the seat mold cavity.

[0025] Figure 8 This is a schematic diagram of the template above.

[0026] Figure 1-8 In the middle section: 1. Upper mold base; 2. Upper template; 3. Lower template; 4. Lower mold base; 5. Upper mold core; 6. Left mold core; 7. Right mold core; 8. Cover mold cavity; 9. Core pulling assembly one; 10. Mold base cavity; 11. Core pulling assembly two; 12. Core pulling assembly three; 13. Upper mold cavity; 14. Mold core bottom shell; 15. Mold core upper shell; 16. Side baffle; 17. Slider; 18. Mold cavity side plate; 19. Angled guide post; 20. Guide groove; 21. Guide step; 22. Angled surface one; 23. Connecting block; 24. Angled surface two; 25. Injection port; 26. Injection main pipe; 27. Injection branch pipe. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] This utility model provides a multi-cavity shell injection mold.

[0030] In this embodiment, refer to Figure 1-8, This multi-cavity shell injection mold includes an upper mold base 1, an upper template 2, a lower template 3, and a lower mold base 4. An upper mold core 5, a left mold core 6, and a right mold core 7 are arranged on the lower template. The upper mold core, the left mold core, and the right mold core are distributed in a "pin" shape. A feeding component for feeding the upper mold core, the left mold core, and the right mold core is arranged on the upper mold base;

[0031] Two mold cavities 8 for forming the upper cover are arranged side by side on the upper mold core. Core-pulling components one 9 are arranged on the upper and lower sides of the mold cavity;

[0032] One mold cavity 10 for forming the base is arranged in each of the left mold core and the right mold core. Core-pulling components two 11 are arranged on the upper and lower sides of the mold cavity, and core-pulling components three 12 are arranged on the left and right sides of the mold cavity;

[0033] An upper mold cavity 13 corresponding to the upper mold core, the left mold core, and the right mold core is arranged on the upper template.

[0034] In the above technical solution, by arranging the upper mold core, the left mold core, and the right mold core in a "pin" shape on the lower template, this design allows the simultaneous formation of two circuit breaker upper covers and two circuit breaker bases during one injection process. This doubles the number of products produced within a single injection cycle, significantly improving production efficiency. The "pin" shape distribution design not only rationally utilizes space but also ensures the compactness of the mold structure, thereby reducing the overall size of the mold and enabling it to meet the requirements of existing standard injection molding machines without the need to purchase additional equipment with a larger tonnage.

[0035] In addition, dedicated core-pulling components (core-pulling components one, two, and three) are set for the mold cavities at different positions to ensure the smooth demolding of products with complex shapes and guarantee product quality.

[0036] Specifically, the upper mold core, the left mold core, and the right mold core each include a mold core bottom shell 14 fixedly connected to the lower template and a mold core upper shell 15 fixedly connected to the upper template.

[0037] In this embodiment, by designing the upper mold core, the left mold core, and the right mold core to include a mold core bottom shell fixedly connected to the lower template and a mold core upper shell fixedly connected to the upper template, the structural stability and durability of the mold core are enhanced, and wear or deformation caused by long-term use is reduced. This split design simplifies the assembly and disassembly process of the mold core, facilitates maintenance and repair, and also enables the replacement of specific components without affecting the use of the entire mold.

[0038] Specifically, the core-pulling assembly one, core-pulling assembly two, and core-pulling assembly three each include a side baffle 16 fixedly connected to the lower template, a slider 17 slidably disposed between the two side baffles 16, a mold cavity side plate 18 connected to the slider 17, and an inclined guide post 19 slidably engaged with the slider. A guide groove 20 is formed between the side baffle and the lower template. Guide steps 21 that slidably engage with the guide groove are provided on both sides of the slider. The inclined guide post is connected to the upper template.

[0039] In this embodiment, the core-pulling assembly adopts a design combining side baffles, sliders, mold cavity side plates, and inclined guide pillars. The guide groove of the slider slides in cooperation with the guide steps, ensuring stable and reliable sliding action of the slider and guaranteeing the accuracy and consistency of the core-pulling action, thus helping to maintain product consistency and high quality. Furthermore, by directly forming guide grooves between the side baffles and the lower mold plate, and by providing guide steps on both sides of the slider that slide in cooperation with the guide grooves, compact space utilization is achieved, further reducing mold size and manufacturing costs.

[0040] Specifically, the slider of the second core-pulling component has an "L" shaped structure. The side wall of the slider has a first inclined surface 22. The inclined guide post of the second core-pulling component is connected to a connecting block 23 that connects to the upper template. The connecting block is provided with a second inclined surface 24 that matches the first inclined surface, and the connecting block is located above the slider.

[0041] In this embodiment, for the second core-pulling component, the design of the slider with an "L"-shaped structure and the inclined surface one on its side wall matching the inclined surface two on the connecting block can realize complex core-pulling actions in a limited space. In particular, the design of stacking the connecting block on the slider and adopting an inward-shrinking design between the connecting block and the slider can greatly reduce the space occupied by the core-pulling component.

[0042] Specifically, the injection assembly includes an injection port 25, an injection main pipe 26 connected to the injection port 25, and an injection branch pipe 27 connected to the injection main pipe and connected to the upper mold core, left mold core, and right mold core.

[0043] In this embodiment, the injection assembly consists of an injection port, a main injection pipe, and injection branch pipes, forming an efficient distribution network from a single inlet to multiple outlets. This ensures that molten plastic can be injected evenly and quickly into each mold cavity, reducing mold filling time and improving production efficiency.

[0044] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A multi-cavity shell injection mold, comprising an upper mold base, an upper template, a lower template, and a lower mold base, characterized in that: An upper die core, a left die core and a right die core are arranged on the lower template, and the upper die core, the left die core and the right die core are distributed in a "pin" shape. A feeding component for feeding the upper die core, the left die core and the right die core is arranged on the upper die base; Two mold cavities for forming the upper cover are arranged side by side on the upper die core, and a first core-pulling component is arranged on the upper and lower sides of the mold cavity; One mold cavity for forming the base is arranged in each of the left die core and the right die core. A second core-pulling component is arranged on the upper and lower sides of the mold cavity, and a third core-pulling component is arranged on the left and right sides of the mold cavity; An upper mold cavity corresponding to the upper die core, the left die core and the right die core is arranged on the upper template.

2. The multi-cavity housing injection mold according to claim 1, characterized in that: The upper die core, the left die core and the right die core each include a die core bottom shell fixedly connected to the lower template and a die core upper shell fixedly connected to the upper template.

3. The multi-cavity housing injection mold according to claim 1, characterized in that: The first core-pulling component, the second core-pulling component and the third core-pulling component each include a side baffle fixedly connected to the lower template, a slider slidably arranged between the two side baffles, a mold cavity side plate connected to the slider, and an inclined guide pillar slidably matched with the slider. A guide groove is formed between the side baffle and the lower template. Guide steps slidably matched with the guide groove are arranged on both sides of the slider. The inclined guide pillar is connected to the upper template.

4. The multi-cavity housing injection mold according to claim 3, characterized in that: The slider of the second core-pulling component is of an "L" shape, and a first inclined surface is formed on the side wall of the slider. A connecting block connected to the upper template is connected to the inclined guide pillar of the second core-pulling component. A second inclined surface adapted to the first inclined surface is arranged on the connecting block, and the connecting block is located above the slider.

5. The multi-cavity housing injection mold according to claim 1, characterized in that: The feeding component includes a feeding port, a feeding main pipe connected to the feeding port, and a feeding branch pipe connected to the feeding main pipe and connected to the upper die core, the left die core and the right die core for feeding.

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