Injection mold for automobile switch panel

By using a mechanical pressing demolding structure with independent linkage between the upper and lower molds, the problem of complex and costly demolding of existing automotive switch panel injection molds is solved, achieving simple and low-cost demolding of the upper and lower molds, and improving demolding efficiency and flexibility.

CN223982099UActive Publication Date: 2026-03-10WENZHOU YINRUI LOCOMOTIVE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing automotive switch panel injection molds have complex and costly demolding components, and can only demold in one direction, which cannot effectively handle the bonding problem of irregularly shaped structural parts.

Method used

It adopts a mechanical pressing demolding structure. Through the independent linkage design of the upper and lower molds, and the cooperation of T-shaped rods and linkage rods, the upper and lower molds can be flexibly demolded, avoiding sticking.

Benefits of technology

The demolding assembly features a simple structure, low cost, and flexible demolding between the upper and lower molds, avoiding the inability to demold when the upper mold is stuck together, thus improving demolding efficiency and flexibility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223982099U_ABST
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Abstract

The utility model discloses an automobile switch panel injection mold which comprises a base, an upper mold and a lower mold, the upper surface of the base is fixedly connected with supporting rods, the supporting rods are distributed and fixed at four corners of the upper surface of the base, the upper end surfaces of the supporting rods are fixedly connected with the upper mold, the outer surfaces of the supporting rods are sleeved with the lower mold, and the lower mold is fixedly connected with the base. An air cylinder is fixedly connected to the upper surface of the base, the end face of a pushing rod of the air cylinder is fixedly connected to the lower surface of the lower mold, a mold cavity is formed between the upper mold and the lower mold, and a first T-shaped rod is inserted into the inner side surface of the upper mold in a penetrating mode. The lower mold can jack up the second T-shaped rod to demold upwards, the upper mold can pull down the linkage rod to demold downwards, the demolding assembly is simple in structure and low in cost, vertical demolding can be achieved, the phenomenon that demolding cannot be achieved when the upper mold is bonded is avoided, and use is flexible and convenient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile switch panel injection mold, more specifically, relate to a kind of automobile switch panel injection mold. BACKGROUND

[0002] With the rapid development of plastic material, the strength and durability of automobile plastic parts are greatly improved, and some metal parts are gradually replaced by automobile plastic parts. Automobile plastic parts are usually produced using injection molds. In order to form a concave cavity in the automobile plastic part, a male die and a female die are usually provided in the injection mold. The male die and the female die cooperate with each other, and the mold is closed for injection. The ideal plastic product can be obtained.

[0003] However, the present inventor has found that the upper mold and the lower mold of the current automobile switch panel injection mold are separated, and manual demolding by an operator is required, which is low in efficiency. In the prior art, such as the utility model disclosed in the authorized announcement CN217434877U, a kind of automobile switch panel injection mold with automatic demolding function is disclosed, which comprises a lower mold, an upper mold and a demolding assembly. The upper mold is covered on the lower mold, and a vertical upward air cylinder is fixedly installed on both sides of the bottom of the lower mold. The piston rod of the two air cylinders is vertically fixed on the bottom of the upper mold. The lower mold is provided with a plug-in slot on both sides, and an insulating plastic partition plate is movably inserted into the plug-in slot. When the two air cylinders work to move the upper mold upward, the upper mold will drive the pull rod at the bottom to drive the insulating plastic plate to rise from the plug-in slot of the lower mold. When the insulating plastic plate is separated from the two elastic copper sheets, the two elastic copper sheets are attached together, and the electromagnet generates magnetism after being electrified to attract the iron rod. The two inverted T-shaped ejector rods in the lower mold will move upward to eject the injection switch panel in the lower mold.

[0004] In the above-mentioned patent, the elastic copper strip separation and the electromagnetic assembly adsorption are used for demolding. The demolding assembly is complex and high in cost. Moreover, the demolding can only be performed from the lower mold. However, when injection molding is performed on a special-shaped structure, the workpiece after injection molding may be adhered to the lower mold or the upper mold. The one-way demolding is not flexible. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims to provide an automobile switch panel injection mold. By adopting a mechanical pressing demolding structure, the upper and lower parts can be independently linked. When the lower mold moves, it can be pressed downward. The second T-shaped rod can be lifted upward for demolding at the lower mold. The linkage rod can be pulled downward for demolding at the upper mold. The demolding assembly structure is simple, low in cost, and can be demolded upward and downward. The phenomenon that the upper mold cannot be demolded when it is adhered is avoided, and the use is flexible and convenient.

[0006] To solve the above problems, the utility model discloses the following technical scheme.

[0007] A kind of automobile switch panel injection mould, including base, upper die, lower die, the upper surface of the base is fixedly connected with support rod, the support rod is distributed and is fixed at the upper surface four corners of base, the upper end surface of the support rod is fixedly connected with upper die, the outer surface of the support rod is sleeved with lower die, the upper surface of the base is fixedly connected with cylinder, the advancing rod end surface of the cylinder is fixedly connected at the lower surface of lower die, the upper die and lower die are provided with mould cavity, the inside surface of the upper die is inserted with first T-shaped rod, the upper surface of the first T-shaped rod is fixedly connected with brace, the lower surface of the brace is fixed with linkage rod, the upper end outer surface of the linkage rod is sleeved with first spring, the lower surface of the linkage rod is provided with spherical protrusion, the inside surface of the lower die is inserted with second T-shaped rod, the outer surface of the second T-shaped rod is provided with annular protrusion, the annular protrusion of the second T-shaped rod is sleeved with second spring, by adopting mechanical pressing demoulding structure, it is independently linked with upper and lower separation type, can press down when lower die moves, can lift the second T-shaped rod to demould upwards at lower die, can pull down linkage rod to demould downwards at upper die, demoulding assembly structure is simple, low in cost, and demoulding can demould upwards and downwards, avoid the phenomenon that upper die cannot demould when bonding, flexible and convenient to use.

[0008] Further, the T-shaped protrusion of the first T-shaped rod is clamped at the inside surface of the mould cavity of the upper die, and the T-shaped protrusion of the second T-shaped rod is clamped at the inside surface of the mould cavity of the lower die.

[0009] Further, the upper surface of the upper die is provided with an injection port, and the injection port is in communication with the mould cavity of the upper die.

[0010] Further, the end surface of the advancing rod of the cylinder is fixed with a flange, and the flange is fixed to the lower surface of the lower die.

[0011] Further, the outside of the upper die and the lower die is provided with an insertion hole, and the linkage rod is inserted into the inside surface of the insertion hole.

[0012] Further, the outer end surface of the lower die is provided with a sliding port, and the sliding port of the lower die is sleeved on the outer surface of the support rod.

[0013] Further, the first T-shaped rod, the second T-shaped rod and the linkage rod all adopt a light rod structure, and the outer surface is polished and polished.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) by adopting mechanical pressing demoulding structure, its upper and lower separation type can be independently linked, can press down when the lower mould moves, can lift the second T-shaped rod upward to demould at the lower mould, can pull down the linkage rod to demould downward at the upper mould, the demoulding assembly structure is simple, the cost is low, and the demoulding can be up and down, avoids the phenomenon that the upper mould cannot be demoulded when bonding, is flexible and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the first schematic view of the whole structure of the utility model;

[0017] Figure 2 It is the second schematic view of the whole structure of the utility model;

[0018] Figure 3 It is the cross section schematic view of the whole structure of the utility model;

[0019] Figure 4 It is the linkage rod schematic view of the utility model;

[0020] Figure 5 It is the second T-shaped rod schematic view of the utility model.

[0021] Mark explanation in drawing:

[0022] 1 base, 2 support rod, 3 upper mould, 4 lower mould, 50 cylinder, 34 mould cavity, 5 first T-shaped rod, 6 pull strip, 7 linkage rod, 8 first spring, 9 spherical convex, 10 second T-shaped rod, 11 annular convex, 12 second spring, 340 injection port. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0024] Embodiment 1: please refer to Figures 1-5The utility model relates to an automobile switch panel injection mold, including base 1, upper die 3, lower die 4, the upper surface fixed connection of base 1 has support rod 2, support rod 2 distribution fixed in the upper surface four corner places of base 1, the upper end surface fixed connection of support rod 2 has upper die 3, the outer surface sleeve of support rod 2 has lower die 4, the upper surface fixed connection of base 1 has cylinder 50, the propulsion rod end surface fixed connection of cylinder 50 is at the lower surface of lower die 4, be provided with mould cavity 34 between upper die 3 and lower die 4, the inside surface of upper die 3 is inserted with first T shaped rod 5, the upper surface fixed connection of first T shaped rod 5 has brace 6, the lower surface fixed of brace 6 has linkage rod 7, the upper end outer surface sleeve of linkage rod 7 has first spring 8, the lower surface of linkage rod 7 is provided with spherical protrusion 9, the inside surface of lower die 4 is inserted with second T shaped rod 10, the outer surface of second T shaped rod 10 is provided with annular protrusion 11, and the sleeve of annular protrusion 11 of second T shaped rod 10 has second spring 12, through adopting mechanical pressing demoulding structure, its upper and lower separation formula can be independent linkage, can press down when lower die moves, can lift the second T shaped rod at lower die and demould upwards, can pull down linkage rod at upper die and demould downwards, and the structure of demoulding assembly is simple, and the cost is low, and demoulding can demould upwards and downwards, avoids the phenomenon that upper die cannot demould when sticking, and uses flexible and convenient;

[0025] The T shaped protrusion of first T shaped rod 5 is clamped in the inside surface at the mould cavity 34 of upper die 3, and the T shaped protrusion of second T shaped rod 10 is clamped in the inside surface at the mould cavity 34 of lower die 4, can be clamped and sealed, does not influence when injection molding, and there is no protrusion in the mould cavity 34;

[0026] The upper surface of upper die 3 is provided with injection port 340, and the injection port 340 is communicated with the mould cavity 34 of upper die 3, which is convenient for injection from the upper end injection port 340, and the injection port 340 does not move when demoulding, which is convenient to use;

[0027] The end surface of the propulsion rod of cylinder 5 is fixed with a flange, which is fixed to the lower surface of lower die 4 through the flange, which is convenient to install;

[0028] The outside of upper die 3 and lower die 4 is provided with a penetrating hole, and the linkage rod 7 is inserted into the inside surface of the penetrating hole, and the outer end surface of lower die 4 is provided with a sliding port, and the sliding port of lower die 4 is sleeved on the outer surface of support rod 2, which is convenient for penetration and sliding, and the sliding positioning support is stable;

[0029] First T shaped rod 5, second T shaped rod 10 and linkage rod 7 all adopt a light rod structure, and the outer surface is polished and polished, which has small friction when sliding;

[0030] When the injection molding machine is used, the upper die 3 is fixedly connected to the upper end surface of the supporting rod 2, the lower die 4 is sleeved on the outer surface of the supporting rod 2, the air cylinder 50 is fixedly connected to the upper surface of the base 1, the advancing rod end surface of the air cylinder 50 is fixedly connected to the lower surface of the lower die 4, the upper surface of the upper die 3 is provided with the injection port 340, and the injection port 340 is in communication with the mold cavity 34 of the upper die 3; the injection molding machine is convenient for injection molding from the upper end injection port 340, the air cylinder 50 controls the opening and closing of the lower die 4, and the injection molding machine is convenient for stripping after injection molding;

[0031] When the injection molding machine is used, the upper die 3 is fixedly connected to the upper end surface of the supporting rod 2, the lower die 4 is sleeved on the outer surface of the supporting rod 2, the air cylinder 50 is fixedly connected to the upper surface of the base 1, the advancing rod end surface of the air cylinder 50 is fixedly connected to the lower surface of the lower die 4, the upper surface of the upper die 3 is provided with the injection port 340, and the injection port 340 is in communication with the mold cavity 34 of the upper die 3; the injection molding machine is convenient for injection molding from the upper end injection port 340, the air cylinder 50 controls the opening and closing of the lower die 4, and the injection molding machine is convenient for stripping after injection molding;

[0032] The above is only a preferred specific embodiment of the utility model; however, the protection scope of the utility model is not limited to this. Any person skilled in the art, according to the technical scheme and the improvement concept of the utility model, can make equivalent replacement or change within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. An injection mold for an automobile switch panel, comprising a base (1), an upper mold (3), and a lower mold (4), characterized in that: The upper surface of the base (1) is fixedly connected with a support rod (2), the support rod (2) is fixedly distributed on the upper surface of the base (1) at four corners, the upper end surface of the support rod (2) is fixedly connected with an upper die (3), the outer surface of the support rod (2) is sleeved with a lower die (4), the upper surface of the base (1) is fixedly connected with a cylinder (50), the advancing rod end surface of the cylinder (50) is fixedly connected with the lower surface of the lower die (4), the upper die (3) and the lower die (4) are provided with a die cavity (34), the inner side surface of the upper die (3) is inserted with a first T-shaped rod (5), the upper surface of the first T-shaped rod (5) is fixedly connected with a stay (6), the lower surface of the stay (6) is fixedly connected with a linkage rod (7), the upper end outer surface of the linkage rod (7) is sleeved with a first spring (8), the lower surface of the linkage rod (7) is provided with a spherical protrusion (9), the inner side surface of the lower die (4) is inserted with a second T-shaped rod (10), the outer surface of the second T-shaped rod (10) is provided with an annular protrusion (11), the annular protrusion (11) of the second T-shaped rod (10) is sleeved with a second spring (12).

2. The injection mold for an automobile switch panel according to claim 1, wherein: The T-shaped protrusion of the first T-shaped rod (5) is clamped on the inner side surface of the die cavity (34) of the upper die (3), and the T-shaped protrusion of the second T-shaped rod (10) is clamped on the inner side surface of the die cavity (34) of the lower die (4).

3. The injection mold for an automobile switch panel according to claim 1, wherein: The upper surface of the upper die (3) is provided with an injection port (340), and the injection port (340) is in communication with the die cavity (34) of the upper die (3).

4. The injection mold for an automobile switch panel according to claim 1, wherein: The advancing rod end surface of the cylinder (50) is fixedly connected with a flange, and the flange is fixedly connected with the lower surface of the lower die (4).

5. The injection mold for an automobile switch panel according to claim 1, wherein: The outer side of the upper die (3) and the lower die (4) is provided with an insertion hole, and the linkage rod (7) is inserted on the inner side surface of the insertion hole.

6. The injection mold for an automotive switch panel according to claim 1, wherein: The outer end surface of the lower die (4) is provided with a sliding port, and the sliding port of the lower die (4) is sleeved on the outer surface of the support rod (2).

7. The injection mold for an automobile switch panel according to claim 1, wherein: The first T-shaped rod (5), the second T-shaped rod (10) and the linkage rod (7) all adopt a light rod structure, and the outer surface is polished and polished.

Citation Information

Patent Citations

  • Automobile switch panel injection mold capable of achieving automatic demolding

    CN217434877U