Plug injection mold with insertion piece positioning structure

By introducing a insert positioning structure into the plug injection mold, including designs such as concave mold grooves, square mounting grooves, and limiting rods, the problems of insufficient sealing and stability in plug injection molding production are solved, achieving higher production stability and sealing.

CN224145202UActive Publication Date: 2026-04-21QUFU TIANCHENG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUFU TIANCHENG AUTO PARTS CO LTD
Filing Date
2025-01-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the production process of existing plug injection molds, the complex surface structure of the plug leads to insufficient sealing and stability.

Method used

A plug injection mold with a prong positioning structure was designed, including a mold base and a mold top, with a concave mold groove, a square mounting groove, a vertical limiting rod, a square limiting block, a circular sliding groove, a prong groove and a wire adapter groove between the two, which enhances the limiting and sealing effect.

Benefits of technology

It improves the stability and sealing of plug injection molding production, facilitates plug installation and disassembly, and enhances the sealing of plug wire installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224145202U_ABST
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Abstract

The utility model discloses a plug injection mold with an inserting piece positioning structure, and particularly relates to the technical field of injection molds, the plug injection mold comprises a mold base, a mold top seat is arranged outside the upper end of the mold base, and concave model grooves are formed in the end faces of the attaching positions of the mold base and the mold top seat; square mounting grooves are formed in the end faces, close to the concave model groove, of the attached positions of the mold base and the mold top base correspondingly, and vertical limiting rods are arranged at the positions, on the inner sides of the square mounting grooves, of the upper end of the mold base. During actual use, the vertical limiting rod, the square limiting block, the circular sliding groove, the insertion piece groove and the square mounting groove are correspondingly arranged, so that the convenience and the stability of mounting and dismounting of the square limiting block can be effectively improved, and the square limiting block can be conveniently replaced according to the difference between three holes and two holes of a plug; and meanwhile, under the corresponding arrangement state of the wire adapting groove and the sealing convex block, the plug wire can be conveniently installed.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically, to a plug injection mold with a insert positioning structure. Background Technology

[0002] The plugs used in automobiles are an important component of the automotive electrical system. Their function is to connect different wires together in the circuit, allowing current to flow and enabling the circuit to perform its intended function. Currently, plugs are manufactured using injection molding. For example, patent CN216465981U discloses a plug injection mold in which a demolding rod pushes upward, creating a gap between the product and the lower mold. Then, a vent pipe fills the gap with air through a vent channel. As the gas continuously flows into the gap, the internal pressure increases, creating pressure that separates the product from the lower mold. Finally, a lifting rod rises, and an ejector plate pushes the product out of the lower mold, completing the demolding process.

[0003] When the above-mentioned device is working, it injects gas between the product and the mold through the air blowing mechanism to release the vacuum adsorption state between the product and the mold, so that the product is separated from the mold. However, the surface structure of the plug is relatively complex, and the sealing and stability of the plug injection molding production need to be further improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a plug injection mold with a insert positioning structure. The technical problem to be solved by the present invention is: how to increase the stability and sealing of plug injection molding production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plug injection mold with a insert positioning structure, a mold base, a mold top seat on the upper exterior, a concave mold groove on the end face of the mold base and the mold top seat where they fit together, a square mounting groove on the end face of the mold base and the mold top seat near the concave mold groove, and a vertical limiting rod on the upper end of the mold base inside the square mounting groove;

[0006] The square mounting groove is provided with a square limiting block inside. The end face of the square limiting block is provided with a circular sliding groove. One side end face of the square limiting block is provided with an insert groove. The end face of the mold base and the mold top seat where they fit together is provided with a wire adapter groove on the side end face near the concave model groove. The inner end face of the wire adapter groove is provided with a sealing protrusion.

[0007] In a preferred embodiment, a limiting slide bar is provided on the outer side of the upper end of the mold base, and an injection port is provided in the middle of the upper end of the mold top seat;

[0008] The outer end face of the mold top seat is provided with a matching slide groove, and one side of the concave model groove is provided with an injection flow divider groove. The injection flow divider groove and the concave model groove are connected by a circular flow divider hole.

[0009] In a preferred embodiment, the number of limiting slide bars and the number of adapting slide grooves are both multiple, and they are arranged in an array on both sides of the vertical central axis in the top view direction of the mold base and the mold top seat.

[0010] The outer end face of the limiting slide bar in the top view direction is adapted to the inner end face of the matching slide groove in the top view direction. There are multiple injection ports, which are arranged in an array on both sides of the vertical central axis of the mold top seat in the top view direction.

[0011] In a preferred embodiment, the number of concave model grooves and square mounting grooves is multiple, and they are arranged in an array on both sides of the vertical central axis in the main viewing direction of the mold base and the mold top.

[0012] The number of vertical limiting rods is two, and they are set in a mirror image on both sides of the vertical central axis in the right-view direction of the square mounting groove.

[0013] In a preferred embodiment, the inner end face of the square mounting groove is adapted to the outer end face of the square limiting block, and two circular sliding grooves are provided, which are set in a mirror state on both sides of the vertical central axis in the right-view direction of the square limiting block.

[0014] The inner end face of the circular groove in the top view direction is adapted to the outer end face of the vertical limiting rod in the top view direction.

[0015] In a preferred embodiment, the insert slot is provided through the end face of the square limiting block, and the number of sealing protrusions is multiple, arranged in an array on both sides of the transverse central axis in the top view of the wire adapter slot.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] In practical use, the corresponding arrangement of the vertical limiting rod, square limiting block, circular sliding groove, insert groove, and square mounting groove effectively increases the convenience and stability of installing and disassembling the square limiting block. This allows for easy replacement of the square limiting block based on whether the plug has three or two holes. Furthermore, the corresponding arrangement of the wire adapter groove and sealing protrusion facilitates the installation of the plug wires and effectively increases the sealing performance of the plug wire installation, thereby significantly improving the stability of plug injection molding production. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the overall installation structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the overall right-side structure of this utility model.

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle.

[0022] The attached figures are labeled as follows: 1 mold base, 2 mold top, 3 injection port, 4 adapter groove, 5 wire adapter groove, 6 limiting slide bar, 7 concave mold groove, 8 vertical limiting rod, 9 square limiting block, 10 circular groove, 11 insert groove, 12 sealing protrusion, 13 injection flow divider groove, 14 circular flow divider hole, 15 square mounting groove. Detailed Implementation

[0023] This utility model provides a plug injection mold with a insert positioning structure, such as Figure 1 and 2 As shown, it includes a mold base 1, and a mold top seat 2 is provided on the outer side of its upper end. The end faces of the mold base 1 and the mold top seat 2 that are in contact with each other are provided with concave mold grooves 7. The end face of the square limiting block 9 is provided with a circular sliding groove 10.

[0024] The square limiting block 9 has an insert groove 11 on one side end face. The mold base 1 and the mold top seat 2 have a wire adapter groove 5 on the side end face near the concave model groove 7. The upper outer side of the mold base 1 has a limiting slide rod 6. The upper middle part of the mold top seat 2 has an injection port 3.

[0025] The outer end face of the mold top seat 2 is provided with an adaptation groove 4. The number of the limiting slide rod 6 and the adaptation groove 4 are both multiple, and they are arranged in an array on both sides of the vertical central axis in the top view direction of the mold base 1 and the mold top seat 2.

[0026] The outer end face of the limiting slide bar 6 in the top view direction is adapted to the inner end face of the matching slide groove 4 in the top view direction, which can effectively increase the stability of the lifting and sliding of the mold top seat 2, thereby effectively increasing the stability and sealing of the mold base 1 and the mold top seat 2. The number of injection ports 3 is provided in multiples, and they are arranged in an array on both sides of the vertical central axis in the top view direction of the mold top seat 2.

[0027] Two circular grooves 10 are provided, and they are mirror images of each other on both sides of the vertical central axis of the square limiting block 9 in the right-view direction. The inner end face of the circular groove 10 in the top-view direction matches the outer end face of the vertical limiting rod 8 in the top-view direction, which can effectively increase the stability and sealing of the square limiting block 9 during installation. The insert groove 11 is set in a through state on the end face of the square limiting block 9, which can facilitate the installation of the plug insert.

[0028] like Figure 3 and 4 As shown, the mold base 1 and the mold top seat 2 are both provided with square mounting grooves 15 at the end face near the concave model groove 7. The upper end of the mold base 1 is provided with a vertical limiting rod 8 inside the square mounting groove 15. The square mounting groove 15 is provided with a square limiting block 9 inside.

[0029] The inner end face of the wire adapter groove 5 is provided with a sealing protrusion 12, and one side of the concave model groove 7 is provided with an injection molding diversion groove 13. The injection molding diversion groove 13 and the concave model groove 7 are connected by a circular diversion hole 14. There are multiple concave model grooves 7 and square mounting grooves 15, which are arranged in an array on both sides of the vertical central axis in the main viewing direction of the mold base 1 and the mold top seat 2, so that multiple plugs can be injection molded at the same time.

[0030] There are two vertical limiting rods 8, which are mirror images of each other on both sides of the vertical central axis of the square mounting groove 15 when viewed from the right. The inner end face of the square mounting groove 15 is adapted to the outer end face of the square limiting block 9. There are multiple sealing protrusions 12, which are arrayed on both sides of the horizontal central axis of the wire adapter groove 5 when viewed from the top, which can effectively increase the sealing of the plug wire installation.

[0031] Working principle of this utility model:

[0032] When using this utility model, the worker installs the three-hole or two-hole square limiting block 9 inside the square mounting groove 15 according to the needs of plug production, and puts the circular sliding groove 10 on the outside of the vertical limiting rod 8. After the installation is completed, the plug prongs are installed inside the prong groove 11. Then the worker can install the plug wire inside the wire adapter groove 5. Then the worker can slide the mold top seat 2 downward to make the mold base 1 and the mold top seat 2 fit and stabilize. Then the worker can inject the mold through the injection port 3 into the concave mold groove 7.

[0033] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plug injection mold with a tab positioning structure, characterized by, include: The mold base (1) has a mold top seat (2) on its upper exterior. The mold base (1) and the mold top seat (2) are both provided with concave model grooves (7) at their joints. The mold base (1) and the mold top seat (2) are both provided with square mounting grooves (15) on their joints near the concave model grooves (7). The upper end of the mold base (1) is provided with a vertical limiting rod (8) on the inner side of the square mounting groove (15). The square mounting groove (15) is provided with a square limiting block (9) inside. The end face of the square limiting block (9) is provided with a circular sliding groove (10). The end face of the square limiting block (9) is provided with an insert groove (11). The end face of the mold base (1) and the mold top seat (2) at the contact point is provided with a wire adapter groove (5) on the side end face near the concave model groove (7). The inner end face of the wire adapter groove (5) is provided with a sealing protrusion (12).

2. The plug injection mold with tab positioning structure according to claim 1, wherein: The mold base (1) has a limiting slide bar (6) on the outer side of the upper end, and the mold top seat (2) has an injection port (3) in the middle of the upper end. The outer end face of the mold top seat (2) is provided with a matching slide groove (4), and one side of the concave model groove (7) is provided with an injection flow divider groove (13). The injection flow divider groove (13) and the concave model groove (7) are connected by a circular flow divider hole (14).

3. The plug injection mold with tab positioning structure according to claim 2, wherein: The number of the limiting slide bar (6) and the matching slide groove (4) are both multiple, and they are arranged in an array on both sides of the vertical central axis in the top view direction of the mold base (1) and the mold top seat (2); The limiting slide bar (6) is adapted to the inner end face of the matching slide groove (4) in the top view direction. The number of injection ports (3) is multiple, and they are arranged in an array on both sides of the vertical central axis in the top view direction of the mold top seat (2).

4. The plug injection mold with tab positioning structure of claim 1, wherein: The number of the concave model groove (7) and the square mounting groove (15) is multiple, and they are arranged in an array on both sides of the vertical central axis in the main viewing direction of the mold base (1) and the mold top seat (2); The number of vertical limiting rods (8) is two, and they are set in a mirror state on both sides of the vertical central axis in the right view direction of the square mounting groove (15).

5. The plug injection mold with tab positioning structure of claim 1, wherein: The inner end face of the square mounting groove (15) is adapted to the outer end face of the square limiting block (9). There are two circular sliding grooves (10), which are set in a mirror state on both sides of the vertical central axis of the square limiting block (9) in the right view direction. The inner end face of the circular groove (10) in the top view direction is adapted to the outer end face of the vertical limiting rod (8) in the top view direction.

6. The plug injection mold with tab positioning structure of claim 1, wherein: The insert slot (11) is set in a through state on the end face of the square limiting block (9), and the number of sealing protrusions (12) is multiple, and they are arranged in an array on both sides of the transverse central axis in the top view direction of the wire adapter slot (5).

Citation Information

Patent Citations

  • Plug injection mold

    CN216465981U