Injection mold for processing automobile wire harness accessories

Abstract

The utility model discloses an injection mold for machining automobile wire harness accessories, and belongs to the technical field of injection molds, the injection mold is characterized by comprising an upper mold base and a lower mold base, the upper mold base and the lower mold base are connected through a hydraulic cylinder, an upper top plate is arranged at the top of the upper mold base, and supporting plates are arranged on the two sides of the bottom of the lower mold base; a lower bottom plate is arranged at the bottom of the supporting plate, injection molding grooves are formed in the two sides of the top of the lower mold base, a fixing box is arranged in the middle of the top of the lower bottom plate, a liquid injection pump is arranged in the fixing box, the output end of the liquid injection pump is connected with an injection molding pipe, and the injection molding pipe communicates with the injection molding grooves; and an inserting groove is formed in the top of the side, close to the injection molding groove, of the lower mold base, the inserting groove communicates with the injection molding groove, and a loosening column is inserted into the inserting groove. Time and labor are saved, and the injection molding production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and more specifically to injection molds for processing automobile wiring harness accessories. Background Art

[0002] The automotive wiring harness is the main network of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the components that are bundled to form a circuit connection after the contact terminals made of copper are crimped with wires and cables, and then plastic-pressed insulators or metal shells are added on the outside. The plastic-pressed insulators on the outside of the wiring harness are made of plastic and need to be injection molded using an injection mold.

[0003] At present, a Chinese patent with announcement number CN215242530U discloses an automobile wiring harness plug-in injection mold, which relates to the technical field of automobile wiring harness plug-in production and processing. The automobile wiring harness plug-in injection mold includes an upper mold base, a lower mold base and a base plate for supporting the lower mold base. An injection molding platform is arranged at the bottom of the base plate, a positioning column is fixedly connected to the lower surface of the base plate, a positioning hole corresponding to the positioning column is opened on the upper surface of the injection molding platform, clamping arms are arranged on both sides of the base plate, and a synchronous driving mechanism for driving two clamping arms to move synchronously toward or in opposite directions is arranged on the lower surface of the injection molding platform.

[0004] In the prior art, similar to the above-mentioned injection mold, when in use, the injection liquid is injected between the upper mold base and the lower mold base. After the injection liquid is cooled and formed, the hydraulic cylinder is controlled to separate the upper mold base and the lower mold base to buckle the injection molded part out of the injection groove. Since there is adhesion between the injection groove and the injection tube after injection molding, it is difficult to remove the injection molded part after molding, which is time-consuming and labor-intensive. Therefore, there is room for improvement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an injection mold for processing automotive wiring harness accessories, which has the advantages of saving time and labor and improving the efficiency of injection molding production.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold for processing automobile wiring harness accessories, comprising an upper mold base and a lower mold base, the upper mold base and the lower mold base are connected by a hydraulic cylinder, an upper top plate is arranged on the top of the upper mold base, support plates are arranged on both sides of the bottom of the lower mold base, a lower bottom plate is arranged on the bottom of the support plate, injection grooves are opened on both sides of the top of the lower mold base, a fixed box is arranged in the middle position of the top of the lower bottom plate, an injection pump is arranged inside the fixed box, an injection pipe is connected to the output end of the injection pump, and the injection pipe is connected to the injection groove;

[0007] A slot is provided at the top of the lower mold base on one side close to the injection groove, the slot is communicated with the injection groove, and a loose column is inserted in the slot.

[0008] By adopting the above technical scheme, when in use, the plastic injection liquid is injected into the injection tank by using the injection pump. After the injection liquid is cooled and formed, the piston rod of the hydraulic cylinder is controlled to extend, the upper mold base and the lower mold base are separated, and the molded injection molded part is exposed. At this time, the loosening column is pulled out from the slot. Since the loosening column is in contact with the molded injection molded part, under the action of friction, the injection molded part will become loose after the loosening column is pulled out. At this time, the injection molded part can be directly taken out, which saves time and effort and improves the efficiency of injection molding production.

[0009] In a preferred embodiment: a plug hole is provided at the top of the lower mold base near the injection groove, the plug hole is connected to the injection groove, and a loosening rod is inserted into the inside of the plug hole.

[0010] By adopting the above technical solution and setting the loosening rod, the loosening rod can be pulled out after injection molding. At this time, the loosening rod loosens the injection molded part from the side under the action of friction, thereby improving the convenience of removing the injection molded part.

[0011] In a preferred embodiment: the loosening column and the loosening rod are both made of brass.

[0012] By adopting the above technical solution, the loosening column and loosening rod made of brass material have good heat conduction effect, thereby improving the molding efficiency of injection molded parts.

[0013] In a preferred embodiment: the loosening column and the slot, and the loosening rod and the insertion hole are both in interference fit.

[0014] By adopting the above technical solution, when the loose column and the slot and the loose rod and the socket are in interference fit, the gap between the loose column and the slot and the loose rod and the socket can be sealed to prevent the injection liquid from entering the gap.

[0015] In a preferred embodiment: a limiting groove and a limiting hole are provided on the bottom outer wall of the upper die seat, the limiting groove is matched with the loosening column, and the limiting hole is matched with the loosening rod.

[0016] By adopting the above technical solution, when the upper mold base and the lower mold base are closed, the loosening column can be inserted into the limiting groove, and the loosening rod can be inserted into the limiting hole, thereby improving the accuracy of closing the mold.

[0017] In a preferred embodiment: the inner wall of the injection molding groove is coated with an anti-stick coating.

[0018] By adopting the above technical solution and providing the anti-stick coating, it is possible to avoid the injection molded part and the injection groove from being adhered together, thereby improving the convenience of demoulding.

[0019] In a preferred embodiment: the anti-stick coating is ABS anti-stick agent.

[0020] By adopting the above technical solution, the ABS anti-sticking agent has a good anti-sticking effect, and the convenience of demoulding is further improved.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] 1. When in use, use the injection pump to inject the plastic injection liquid into the injection tank. After the injection liquid is cooled and formed, control the hydraulic cylinder piston rod to extend, separate the upper mold base and the lower mold base, and expose the molded injection molded parts. At this time, pull the loose column out of the slot. Since the loose column is in contact with the molded injection molded parts, the injection molded parts will become loose under the action of friction after the loose column is pulled out. At this time, the injection molded parts can be taken out directly, saving time and effort, and improving the efficiency of injection molding production;

[0023] 2. The loosening rod can be pulled out after injection molding. At this time, the loosening rod loosens the injection molded part from the side under the action of friction, which improves the convenience of removing the injection molded part; the loosening column and loosening rod made of brass have good heat conduction effect, which improves the molding efficiency of the injection molded part; when the loosening column and the slot and the loosening rod and the socket are interference fit, the gap between the loosening column and the slot and the loosening rod and the socket can be sealed to prevent the injection liquid from entering the gap;

[0024] 3. When the upper mold base and the lower mold base are closed, the loose column can be inserted into the limit groove, and the loose rod can be inserted into the limit hole, which improves the accuracy of mold closing; the anti-stick coating can prevent the injection molded part from sticking to the injection groove, and improves the convenience of demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0026] Figure 2 is a schematic diagram of the three-dimensional structure of the present embodiment highlighting the injection molding groove;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the present embodiment highlighting the loose column and the loose rod.

[0028] Explanation of the accompanying drawings: 1. upper mold base; 2. lower mold base; 3. hydraulic cylinder; 4. upper top plate; 5. support plate; 6. lower bottom plate; 7. injection molding groove; 8. fixing box; 9. injection molding tube; 10. loosening column; 11. loosening rod; 12. anti-stick coating. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure.

[0030] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0031] Injection molds for automotive wiring harness accessories, such as Figure 1-3 As shown, it includes an upper die base 1 and a lower die base 2, which are connected by a hydraulic cylinder 3, an upper top plate 4 is arranged on the top of the upper die base 1, support plates 5 are arranged on both sides of the bottom of the lower die base 2, a lower bottom plate 6 is arranged on the bottom of the support plate 5, injection grooves 7 are opened on both sides of the top of the lower die base 2, a fixed box 8 is arranged in the middle position of the top of the lower bottom plate 6, an injection pump is arranged inside the fixed box 8, an injection pipe 9 is connected to the output end of the injection pump, and the injection pipe 9 is communicated with the injection groove 7;

[0032] A slot is provided at the top of the lower mold base 2 near the injection groove 7 , the slot is connected to the injection groove 7 , and a loose column 10 is inserted into the slot.

[0033] In this embodiment, a socket is provided at the top of the lower mold base 2 near the injection groove 7, the socket is connected to the injection groove 7, and a loosening rod 11 is inserted into the inside of the socket. The loosening rod 11 can be pulled out after injection molding. At this time, the loosening rod 11 loosens the injection molded part from the side under the action of friction, thereby improving the convenience of removing the injection molded part; the loosening column 10 and the loosening rod 11 are both made of brass, and the loosening column 10 and the loosening rod 11 made of brass have good thermal conductivity, thereby improving the molding efficiency of the injection molded parts.

[0034] The loose column 10 and the slot, and the loose rod 11 and the socket are both interference fit; when the loose column 10 and the slot, and the loose rod 11 and the socket are interference fit, the gap between the loose column 10 and the slot, and the loose rod 11 and the socket can be sealed to prevent the injection liquid from entering the gap.

[0035] Furthermore, a limiting groove and a limiting hole are provided on the bottom outer wall of the upper mold base 1, the limiting groove is adapted to the loosening column 10, and the limiting hole is adapted to the loosening rod 11. When the upper mold base 1 and the lower mold base 2 are molded together, the loosening column 10 can be inserted into the limiting groove, and the loosening rod 11 can be inserted into the limiting hole, thereby improving the accuracy of mold closing.

[0036] It is worth mentioning that the inner wall of the injection groove 7 is coated with an anti-stick coating 12, which can prevent the injection molded part and the injection groove 7 from sticking together, thereby improving the convenience of demolding; the anti-stick coating 12 is ABS anti-stick agent, which has a good anti-stick effect, further improving the convenience of demolding.

[0037] The working process and beneficial effects of the utility model are as follows:

[0038] When in use, the plastic injection liquid is injected into the injection groove 7 by using an injection pump. After the injection liquid is cooled and formed, the piston rod of the hydraulic cylinder 3 is controlled to extend, and the upper mold base 1 and the lower mold base 2 are separated, and the molded injection molded part is exposed. At this time, the loosening column 10 is pulled out from the slot. Since the loosening column 10 is in contact with the molded injection molded part, under the action of friction, the injection molded part will become loose after the loosening column 10 is pulled out. At this time, the injection molded part can be directly taken out, which saves time and effort and improves the efficiency of injection molding production.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold for processing automobile wiring harness accessories, comprising an upper mold base (1) and a lower mold base (2), wherein the upper mold base (1) and the lower mold base (2) are connected via a hydraulic cylinder (3), an upper top plate (4) is arranged on the top of the upper mold base (1), support plates (5) are arranged on both sides of the bottom of the lower mold base (2), and a lower bottom plate (6) is arranged at the bottom of the support plate (5), characterized in that: Injection grooves (7) are provided on both sides of the top of the lower mold base (2); a fixed box (8) is provided in the middle of the top of the lower base plate (6); an injection pump is provided inside the fixed box (8); an injection pipe (9) is connected to the output end of the injection pump, and the injection pipe (9) is connected to the injection groove (7); a slot is provided on the top of the lower mold base (2) near the injection groove (7), the slot is connected to the injection groove (7), and a loosening column (10) is inserted into the slot.

2. The injection mold for processing automotive wiring harness accessories according to claim 1, characterized in that: A plug hole is provided at the top of the lower mold base (2) on the side close to the injection groove (7), the plug hole is connected to the injection groove (7), and a loosening rod (11) is inserted into the inside of the plug hole.

3. The injection mold for processing automotive wiring harness accessories according to claim 2, characterized in that: The loosening column (10) and the loosening rod (11) are both made of brass.

4. The injection mold for processing automobile wiring harness accessories according to claim 3, characterized in that: The loosening column (10) and the slot, as well as the loosening rod (11) and the insertion hole, are both in interference fit.

5. The injection mold for processing automobile wiring harness accessories according to claim 4, characterized in that: The bottom outer wall of the upper die seat (1) is provided with a limiting groove and a limiting hole, wherein the limiting groove is matched with the loosening column (10), and the limiting hole is matched with the loosening rod (11).

6. The injection mold for processing automotive wiring harness accessories according to claim 1, characterized in that: The inner wall of the injection molding groove (7) is coated with an anti-stick coating (12).

7. The injection mold for processing automobile wiring harness parts according to claim 6, characterized in that: The anti-stick coating (12) is an ABS anti-stick agent.

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