Injection molding machine for encapsulating plastic hardware terminal
By designing multi-position injection molding components and positioning protection components, the problem of insufficient bonding between metal and plastic in traditional injection molding methods is solved, achieving efficient encapsulation of terminal products and improving bonding strength and waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI RISING PRECISION MOLD CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-24
AI Technical Summary
When using traditional injection molding to apply a single layer of plastic to metal terminals, the bonding strength between the metal and the plastic is insufficient, resulting in substandard product quality.
By employing multi-position injection molding components and positioning protection components, and by setting internal modules and elastic buffer bars within the injection mold, multiple injection molding of metal terminals and precise position control are achieved, reducing glue overflow and improving bonding strength.
It enhances the bonding strength between the metal terminals and the plastic, ensures the product's waterproof performance and efficiency, avoids glue overflow, and improves the injection molding effect.
Smart Images
Figure CN224158749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine technology, specifically to an injection molding machine for encapsulating plastic hardware terminals. Background Technology
[0002] In modern electronics and electrical industries, plastic hardware terminals are widely used. In order to improve the performance of the terminals, such as insulation and mechanical strength, it is often necessary to wrap a layer of plastic around the hardware terminals.
[0003] Traditional injection molding methods involve placing the terminal in the mold's positioning position, then injecting it through the injection hole. After cooling, the mold is opened to remove the encapsulated product. This process only involves one encapsulation of the terminal's outer surface, which can lead to insufficient bonding between the metal and plastic during subsequent use. This can result in encapsulation failure or product defects, affecting future applications. Therefore, optimization and improvement are necessary. Utility Model Content
[0004] The purpose of this invention is to provide an injection molding machine for overmolding plastic hardware terminals, in order to solve the problem mentioned in the background art that the single-layer overmolding of terminals easily leads to insufficient bonding between the metal and the plastic, affecting product quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection molding machine for overmolding plastic hardware terminals, comprising: a processing table, a support frame connected to the top of the processing table, and an injection molding box connected to the top of the support frame; and further comprising a multi-position injection molding assembly and a positioning and protection assembly.
[0006] The multi-position injection molding assembly is located at the top front of the processing table. The multi-position injection molding assembly includes a lower module, an injection mold is located on the inner side of the lower module, and an inner module is located on the top of the injection mold. A telescopic cylinder is located at the rear end of the lower module. The multi-position injection molding assembly is used for multiple injection adjustments of the terminal. The positioning and protection assembly is located at the inner bottom end of the support frame. The positioning and protection assembly includes an injection end, a protective cover is located on the outer side of the injection end, and a insertion pipe is located on the inner side of the protective cover. The positioning and protection assembly is used for protection during injection molding.
[0007] Preferably, the lower module is located at the top front of the processing table, and an adjustment chamber is provided inside the lower module, with the injection mold located inside the adjustment chamber.
[0008] Preferably, one end of the lower module is connected to a telescopic push rod, and the top of the lower module is connected to the upper module, with the inner module located at the bottom inner side of the upper module.
[0009] Preferably, the upper module has two injection molding interfaces on its inner side.
[0010] Preferably, an adjustment limiting component is provided at the front of the top of the processing table. The adjustment limiting component includes an adjustment positioning block, which is located at the front of the top of the processing table. A scale is connected to the outer side of the adjustment positioning block.
[0011] Preferably, the inner side of the adjusting positioning block is connected to an elastic connecting rod, and the inner side of the elastic connecting rod is connected to a limit baffle.
[0012] Preferably, the injection end is connected to the inner bottom end of the support frame, and a positioning ring is connected to the outer side of the injection end.
[0013] Preferably, an elastic buffer rod is connected to the inner bottom end of the positioning ring, and the protective cover is disposed at the bottom end of the elastic buffer rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This utility model uses an adjustable injection mold set inside the lower module, and an inner module set inside one end of the injection mold to reduce the injection space of the metal terminal. After the first injection is fixed, the position is moved and the inner module is ejected for a second injection, which improves the bonding force between the metal and the plastic, ensures the waterproof protection performance of the product, and improves the efficiency of the equipment.
[0016] An elastic buffer rod is installed on the outside of the injection end to provide elastic support for the protective cover. The protective cover and the inner plug tube are first inserted into the injection interface for buffering and limiting, thus protecting the injection position. This prevents glue overflow when the injection end is injected inside the injection interface, thereby improving the injection effect. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the partial separation three-dimensional structure of the multi-position injection molding component of this utility model;
[0019] Figure 3 This is a schematic diagram of the partially separated three-dimensional structure of the adjustment and limiting component of this utility model;
[0020] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the positioning and protection component of this utility model.
[0021] In the diagram: 1. Processing table; 2. Support frame; 3. Injection box; 4. Lower module; 5. Adjustment chamber; 6. Injection mold; 7. Telescopic push rod; 8. Upper module; 9. Inner module; 10. Telescopic cylinder; 11. Adjustment positioning block; 12. Scale; 13. Elastic connecting rod; 14. Limiting baffle; 15. Injection end; 16. Positioning ring; 17. Elastic buffer rod; 18. Protective cover; 19. Insertion pipe; 20. Injection interface. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0024] like Figure 1 - Figure 4 As shown, this application provides an injection molding machine for overmolding plastic hardware terminals, including: a processing table 1, a support frame 2 connected to the top of the processing table 1, and an injection molding box 3 connected to the top of the support frame 2;
[0025] A multi-position injection molding assembly is provided at the front of the top of the processing table 1. The multi-position injection molding assembly includes a lower module 4, an injection mold 6 is provided on the inner side of the lower module 4, and an inner module 9 is provided on the top of the injection mold 6. A telescopic cylinder 10 is provided at the rear end of the lower module 4. The multi-position injection molding assembly is used for multiple injection adjustment of the terminal.
[0026] Specifically, such as Figure 2 As shown, the lower module 4 is located at the top front of the processing table 1, and an adjustment chamber 5 is provided inside the lower module 4. The injection mold 6 is located inside the adjustment chamber 5. The injection mold 6 moves inside the adjustment chamber 5 to facilitate control of the injection position.
[0027] Specifically, such as Figure 2 As shown, one end of the lower module 4 is connected to a telescopic push rod 7, and the top of the lower module 4 is connected to an upper module 8. The inner module 9 is located at the bottom inner side of the upper module 8. The telescopic push rod 7 is used to push the position of the injection mold 6. The inner module 9 is stuck inside the injection mold 6, which can reduce the internal injection space and make it easier to reserve space for secondary injection of the terminal.
[0028] Specifically, such as Figure 2As shown, the inner side of the upper module 8 is provided with an injection interface 20, and there are two injection interfaces 20, which are used for injection molding of different injection layers of the terminal.
[0029] Specifically, such as Figure 3 As shown, an adjustment limit assembly is provided at the front of the top of the processing table 1. The adjustment limit assembly includes an adjustment positioning block 11, which is located at the front of the top of the processing table 1. A scale 12 is connected to the outside of the adjustment positioning block 11. The adjustment positioning block 11 is adjusted and installed at the top of the processing table 1. The position of the limit buffer is measured by the scale 12 to facilitate the adjustment of the inner buffer.
[0030] Specifically, such as Figure 3 As shown, an elastic connecting rod 13 is connected to the inner side of the adjusting positioning block 11, and a limit baffle 14 is connected to the inner side of the elastic connecting rod 13. The limit baffle 14 is used for end limit protection when the lower module 4 moves, and the elastic connecting rod 13 improves the buffer protection effect.
[0031] The support frame 2 is provided with a positioning protection component at its inner bottom. The positioning protection component includes an injection end 15, a protective cover 18 is provided on the outer side of the injection end 15, and a plug tube 19 is provided on the inner side of the protective cover 18. The positioning protection component is used for protection during injection molding.
[0032] Specifically, such as Figure 4 As shown, the injection end 15 is connected to the inner bottom end of the support frame 2, and a positioning ring 16 is connected to the outer side of the injection end 15. An elastic buffer rod 17 is connected to the inner bottom end of the positioning ring 16. The protective cover 18 is set at the bottom end of the elastic buffer rod 17. The positioning ring 16 is fixedly connected to the outer side of the injection end 15. The elastic buffer rod 17 connected to the inner side provides elastic support for the protective cover 18, allowing the protective cover 18 and the inner insertion pipe 19 to be inserted into the injection interface 20 for buffering and limiting, protecting the injection position, so that the injection end 15 will not overflow when injecting inside the injection interface 20, thus improving the injection effect.
[0033] In this embodiment: an adjustable injection mold 6 is provided inside the lower module 4, and an inner module 9 is provided inside one end of the injection mold 6 to reduce the injection space of the metal terminal. After the first injection is fixed, the position is moved and the inner module 9 is ejected for a second injection. An elastic buffer rod 17 is provided on the outside of the injection end 15 to provide elastic support for the protective cover 18, so that the protective cover 18 and the inner insertion pipe 19 are first inserted into the injection interface 20 for buffering and limiting, protecting the injection position and reducing the situation of glue overflow.
[0034] Specifically, the solution is as follows: When performing the encapsulation process on the metal terminals, the metal terminals are first placed inside the injection mold 6. Then, the inner module 9 inside the upper module 8 is pressed downwards to reduce the injection space of the metal terminals. At this time, the injection end 15 is connected to the protective cover 18, which moves downwards towards the injection interface 20. The protective cover 18, connected by the elastic buffer rod 17, can fit tightly against the top of the upper module 8 to protect the outside of the injection interface 20 and reduce the occurrence of glue overflow. After the metal terminals are encapsulated inside the injection mold 6, the inner module 9 is moved to allow the extension... The push rod 7 pushes the injection mold 6 to change position, so that the injection mold 6 stops at the bottom of another injection interface 20. At this time, the telescopic cylinder 10 pushes the lower module 4 to move, which facilitates the position change between the injection end 15 and different injection interfaces 20. Then, during the pushing process, the elastically connected limit baffle 14 on the outside provides buffer and limit protection to ensure the accuracy of the injection position. After the inner module 9 moves out, the internal injection space of the injection mold 6 increases, which facilitates secondary injection, improves the bonding force between the metal terminal and the external plastic, and improves the waterproof performance of the product.
[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0036] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An injection molding machine for overmolding plastic hardware terminals, comprising: A processing table (1), wherein a support frame (2) is connected to the top of the processing table (1), and a plastic injection box (3) is connected to the top of the support frame (2), characterized in that it further includes: A multi-position injection molding assembly is provided at the top front of the processing table (1). The multi-position injection molding assembly includes a lower module (4), an injection mold (6) is provided on the inner side of the lower module (4), and an inner module (9) is provided at the top of the injection mold (6). A telescopic cylinder (10) is provided at the rear end of the lower module (4). The multi-position injection molding assembly is used for multiple injection adjustment of terminals. The positioning protection component is located at the inner bottom of the support frame (2). The positioning protection component includes an injection end (15), a protective cover (18) is provided on the outer side of the injection end (15), and a plug tube (19) is provided on the inner side of the protective cover (18). The positioning protection component is used for protection during injection molding.
2. The injection molding machine for encapsulating plastic hardware terminals according to claim 1, wherein The lower module (4) is located at the top front of the processing table (1), and an adjustment chamber (5) is provided inside the lower module (4). The injection mold (6) is located inside the adjustment chamber (5).
3. The injection molding machine for encapsulating plastic hardware terminals according to claim 2, wherein One end of the lower module (4) is connected to a telescopic push rod (7), and the top of the lower module (4) is connected to an upper module (8). The inner module (9) is located at the bottom inner side of the upper module (8).
4. The injection molding machine for encapsulating plastic hardware terminals according to claim 3, wherein The upper module (8) has an injection interface (20) on its inner side, and there are two injection interfaces (20).
5. The injection molding machine for encapsulating plastic hardware terminals according to claim 1, wherein An adjustment limiting component is provided at the front of the top of the processing table (1). The adjustment limiting component includes an adjustment positioning block (11), and the adjustment positioning block (11) is located at the front of the top of the processing table (1). A scale (12) is connected to the outside of the adjustment positioning block (11).
6. The injection molding machine for overmolding plastic hardware terminals according to claim 5, characterized in that, The inner side of the adjusting positioning block (11) is connected to an elastic connecting rod (13), and the inner side of the elastic connecting rod (13) is connected to a limit baffle (14).
7. The injection molding machine for encapsulating plastic hardware terminals according to claim 1, wherein The injection end (15) is connected to the inner bottom end of the support frame (2), and a positioning ring (16) is connected to the outer side of the injection end (15).
8. The injection molding machine for encapsulating plastic hardware terminals according to claim 7, wherein The inner bottom end of the positioning ring (16) is connected to an elastic buffer rod (17), and the protective cover (18) is located at the bottom end of the elastic buffer rod (17).