Multi-point demolding structure of back glue feeding injection mold for automobile door panel decorating part

Abstract

The utility model relates to the technical field of fixed mold blocks, in particular to a multi-point demolding structure of an automobile door panel decorating part back glue feeding injection mold, which comprises a movable mold, a fixed mold block is embedded on the base surface of the movable mold, a mold cavity is arranged between the fixed mold block and the movable mold, an ejector pin rod is arranged on the inner wall of the fixed mold block, and the ejector pin rod is connected with the movable mold. According to the utility model, the hot runner piece and the ejector plate are simultaneously placed on one side of the fixed module, so that the back glue feeding mode of the mold is realized, the defects on the front side of a product are reduced, the weld line of the product is more easily adjusted, the deformation of the cooled product is more easily controlled, and the demolding of a buckle on an injection molding piece is realized by arranging a plurality of inclined slide blocks; when the movable mold and the fixed mold block are fixed, injection molding is facilitated, meanwhile, the electromagnet is electrified to generate magnetism, and then the electromagnet adsorbs and fixes the magnetic adsorption block, so that the movable mold and the fixed mold block are tightly attached together.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a multi-point demolding structure for a back-injection mold of automotive door panel decorative parts. Background Technology

[0002] Injection molds are high-precision tools widely used in the plastics processing industry. They are used to inject molten plastic material into a mold cavity, which then cools and solidifies to form plastic products of various shapes and sizes. The design and manufacturing quality of these molds directly affect the appearance, dimensional accuracy, and production efficiency of the products, thus playing a crucial role in modern manufacturing.

[0003] In current injection mold applications, the complexity of the demolding process not only weakens the practical effectiveness of the mold but may also adversely affect production efficiency and product quality. When the clamping force is insufficient or there are defects in the mold design, material overflow is very likely to occur during the injection molding process. This situation not only wastes raw materials and increases production costs, but also requires subsequent treatment, further reducing the efficiency of the production process.

[0004] Therefore, a multi-point demolding structure for the back-injection mold of automotive door panel trim parts is needed to improve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-point demolding structure for a back-injection mold of automotive door panel decorative parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-point demolding structure for a back-injection mold for automotive door panel decorative parts includes a moving mold, a fixed module is embedded in the base surface of the moving mold, and there is a mold cavity between the fixed module and the moving mold. An ejector pin is provided on the inner wall of the fixed module.

[0008] The ejector pin includes a sleeve, which is embedded in the outer wall of the fixed module. An ejector rod is slidably connected to the inner wall of the sleeve, and one end of the ejector rod extends to one side of the fixed module.

[0009] An ejector plate is provided at the other end of the ejector rod and on the inner wall of the fixed module. A fixed mold is installed on the outer wall of the ejector plate. A hot runner component is embedded in the inner wall of the fixed mold. A slanted slider is embedded in the inner wall of the fixed module.

[0010] The inclined slider includes a fixed block, which is slidably connected to the inner wall of the fixed module. An inclined sliding rod is slidably connected to the inner wall of the fixed block, and the inclined sliding rod is embedded in the inner wall of the fixed module.

[0011] An injection molded part is provided on one side of the inclined slider and on the inner wall of the moving mold.

[0012] As a preferred embodiment of this utility model, a magnetic adsorption block is embedded in the inner wall of the moving mold, and an electromagnet is embedded in the inner wall of the stationary mold, wherein a magnetic adsorption block is magnetically connected to the outer wall of the electromagnet.

[0013] As a preferred embodiment of this utility model, the magnetic adsorption blocks are arranged in multiple sets and are respectively located on the inner wall of the moving mold, and the electromagnets are arranged in multiple sets and are respectively located on the inner wall of the stationary mold.

[0014] As a preferred embodiment of this utility model, the ejector pin is located on one side of the hot runner component, and the ejector plate is located on one side of the injection molded part, while the fixed mold is located on one side of the fixed module.

[0015] As a preferred embodiment of this utility model, the hot runner is provided in multiple sets and is located on the outer wall of the fixed mold respectively, and one end of the hot runner is embedded in the inner wall of the fixed mold. The inclined slider is provided in multiple sets and is located on the outer wall of the fixed mold respectively.

[0016] As a preferred embodiment of this utility model, the inclined slider is located on one side of the injection molded part, and the injection molded part is located in the inner cavity of the mold cavity.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the hot runner component, the Hull inclined slider, in the multi-point demolding structure of the back-injection mold for automotive door panel decorative parts is used. By placing the hot runner component and the ejector plate on one side of the fixed module, the back-injection method of the mold is realized. This helps to reduce defects on the front of the product, makes it easier to adjust the weld lines of the product, and makes it easier to control the deformation after the product cools. By setting multiple inclined sliders, the demolding of the snap-fit ​​on the injection molded part is realized. This helps to solve the problem of the complexity of the demolding process in the current application practice of injection molds, which not only weakens the practical efficiency of the mold, but may also have an adverse effect on production efficiency and finished product quality.

[0019] 2. In this utility model, the magnetic adsorption block and electromagnet in the multi-point demolding structure of the automotive door panel decorative part injection mold are used for fixing with the moving mold and the fixed module to facilitate injection molding. At the same time, the electromagnet generates magnetism when energized, which in turn attracts and fixes the magnetic adsorption block, so that the moving mold and the fixed module are tightly attached together. This is beneficial when the mold release force is insufficient or there are defects in the mold design. In such cases, material overflow is very likely to occur during the injection molding process. This situation not only wastes raw materials but also increases production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the moving mold structure of this utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of structure A;

[0023] Figure 4 This utility model Figure 2 An enlarged schematic diagram of the B structure.

[0024] In the diagram: 1. Moving mold; 2. Fixed mold; 3. Ejector pin; 31. Sleeve; 32. Ejector rod; 4. Ejector plate; 5. Fixed mold; 6. Hot runner component; 7. Angled slider; 71. Fixed block; 72. Angled slider; 8. Injection part; 9. Magnetic adsorption block; 10. Electromagnet. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0027] A multi-point demolding structure for a back-injection mold for automotive door panel decorative parts includes a moving mold 1, a fixed module 2 embedded in the base surface of the moving mold 1, wherein there is a mold cavity between the fixed module 2 and the moving mold 1, and an ejector pin 3 is provided on the inner wall of the fixed module 2;

[0028] The ejector rod 3 includes a sleeve 31, which is embedded in the outer wall of the fixed module 2. An ejector rod 32 is slidably connected to the inner wall of the sleeve 31, and one end of the ejector rod 32 extends to one side of the fixed module 2.

[0029] An ejector plate 4 is provided at the other end of the ejector rod 3 and on the inner wall of the fixed module 2. A fixed mold 5 is installed on the outer wall of the ejector plate 4. A hot runner component 6 is embedded in the inner wall of the fixed mold 5. A slanted slider 7 is embedded in the inner wall of the fixed module 2.

[0030] The inclined slider 7 includes a fixed block 71, which is slidably connected to the inner wall of the fixed module 2. An inclined slider 72 is slidably connected to the inner wall of the fixed block 71, and the inclined slider 72 is embedded in the inner wall of the fixed module 2.

[0031] An injection molded part 8 is provided on one side of the inclined slider 7 and on the inner wall of the moving mold 1.

[0032] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A magnetic adsorption block 9 is embedded in the inner wall of the moving mold 1, and an electromagnet 10 is embedded in the inner wall of the fixed mold 2. The outer wall of the electromagnet 10 is magnetically connected to the magnetic adsorption block 9. Multiple sets of magnetic adsorption blocks 9 are provided and are located on the inner wall of the moving mold 1, and multiple sets of electromagnets 10 are provided and are located on the inner wall of the fixed mold 2.

[0033] Furthermore, the ejector pin 3 is located on one side of the hot runner component 6, and the ejector plate 4 is located on one side of the injection molded part 8. The fixed mold 5 is located on one side of the fixed module 2. The hot runner component 6 is provided in multiple sets and is located on the outer wall of the fixed mold 5 respectively. One end of the hot runner component 6 is embedded in the inner wall of the fixed module 2. The inclined slider 7 is provided in multiple sets and is located on the outer wall of the fixed module 2 respectively. The inclined slider 7 is located on one side of the injection molded part 8. The injection molded part 8 is located in the inner cavity of the mold cavity. The inclined slider 7 is used for demolding the injection molded part 8 by snapping on it.

[0034] The working process of this utility model is as follows: When using the multi-point demolding structure of the back-injection mold for automotive door panel decorative parts designed in this scheme, an ejector plate 4 is provided at the other end of the ejector rod 3 and on the inner wall of the fixed module 2. A fixed mold 5 is installed on the outer wall of the ejector plate 4. A hot runner component 6 is embedded in the inner wall of the fixed mold 5. Under the action of the inclined slider 7 embedded in the inner wall of the fixed module 2, this auxiliary mold achieves back-injection of the mold by simultaneously placing the hot runner component 6 and the ejector plate 4 on one side of the fixed module 2. This helps to reduce defects on the front of the product, makes it easier to adjust the weld lines of the product, and makes it easier to control the deformation of the product after cooling. The inclined slider 7 includes a fixed block 71, which is slidably connected to the fixed mold. On the inner wall of block 2, a slidable sliding rod 72 is slidably connected to the inner wall of the fixed block 71, and the slidable sliding rod 72 is embedded in the inner wall of the fixed block 2. Under the action of the injection molded part 8 set on one side of the slidable sliding rod 71 and located on the inner wall of the moving mold 1, the slidable sliding rod 71 fixes the injection molded part 8. Since the fixed block 71 slides obliquely on the outer wall of the slidable sliding rod 72, the fixed block 71 fixes the injection molded part 8. When sliding upward, the fixed block 71 releases the clip on the injection molded part 8, thereby realizing the release of the clip on the injection molded part 8. This helps to solve the problem of the complexity of the demolding process in the current application practice of injection molds, which not only weakens the practical efficiency of the mold, but may also have an adverse effect on production efficiency and finished product quality.

[0035] Magnetic adsorption blocks 9 are embedded in the inner wall of the moving mold 1, and electromagnets 10 are embedded in the inner wall of the fixed mold 2. Magnetic adsorption blocks 9 are magnetically connected to the outer wall of the electromagnets 10. Multiple sets of magnetic adsorption blocks 9 are arranged on the inner wall of the moving mold 1 and the electromagnets 10 are arranged on the inner wall of the fixed mold 2. When the moving mold 1 and the fixed mold 2 are fixed, injection molding is facilitated. At the same time, the electromagnets 10 generate magnetism when energized, which causes the electromagnets 10 to adsorb and fix the magnetic adsorption blocks 9, so that the moving mold 1 and the fixed mold 2 are tightly fitted together. This is beneficial because when the mold release force is insufficient or there are defects in the mold design, material overflow is very likely to occur during the injection molding process. This situation not only wastes raw materials but also increases production costs.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point demolding structure for a back-injection mold of an automotive door panel decorative part, comprising a moving mold (1), characterized in that: A fixed module (2) is embedded in the base surface of the moving mold (1), wherein there is a mold cavity between the fixed module (2) and the moving mold (1), and an ejector pin (3) is provided on the inner wall of the fixed module (2); The ejector rod (3) includes a sleeve (31), which is embedded in the outer wall of the fixed module (2). A push rod (32) is slidably connected to the inner wall of the sleeve (31), and one end of the push rod (32) extends to one side of the fixed module (2). The other end of the ejector rod (3) is provided with an ejector plate (4) located on the inner wall of the fixed module (2). A fixed mold (5) is installed on the outer wall of the ejector plate (4). A hot runner component (6) is embedded in the inner wall of the fixed mold (5). A slanted slider (7) is embedded in the inner wall of the fixed module (2). The inclined slider (7) includes a fixed block (71), which is slidably connected to the inner wall of the fixed module (2). An inclined slider (72) is slidably connected to the inner wall of the fixed block (71), and the inclined slider (72) is embedded in the inner wall of the fixed module (2). An injection molded part (8) is provided on one side of the inclined slider (7) and on the inner wall of the moving mold (1).

2. The multi-point demolding structure of the back-injection mold for automotive door panel decorative parts according to claim 1, characterized in that: The moving module (1) has a magnetic adsorption block (9) embedded in its inner wall, and the fixed module (2) has an electromagnet (10) embedded in its inner wall. The outer wall of the electromagnet (10) is magnetically connected to the magnetic adsorption block (9).

3. The multi-point demolding structure of a back-injection mold for automotive door panel decorative parts according to claim 2, characterized in that: The magnetic adsorption blocks (9) are arranged in multiple sets and are respectively located on the inner wall of the moving mold (1), and the electromagnets (10) are arranged in multiple sets and are respectively located on the inner wall of the stationary mold (2).

4. The multi-point demolding structure of a back-injection mold for automotive door panel decorative parts according to claim 1, characterized in that: The ejector pin (3) is located on one side of the hot runner (6), and the ejector plate (4) is located on one side of the injection molded part (8). The fixed mold (5) is located on one side of the fixed mold (2).

5. The multi-point demolding structure of a back-injection mold for automotive door panel decorative parts according to claim 1, characterized in that: The hot runner (6) is provided in multiple sets and is located on the outer wall of the fixed mold (5), and one end of the hot runner (6) is embedded in the inner wall of the fixed module (2). The inclined slider (7) is provided in multiple sets and is located on the outer wall of the fixed module (2).

6. The multi-point demolding structure of a back-injection mold for automotive door panel decorative parts according to claim 1, characterized in that: The inclined slider (7) is located on one side of the injection molded part (8), which is located in the inner cavity of the mold cavity.

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