Door panel decorative panel core ejection injection molding mold

Abstract

This utility model provides a door panel decorative panel core-pulling ejection injection molding mold, including an upper injection mold body, a lower injection mold body, and a hot runner assembly. The hot runner assembly includes four hot runner columns, a frame-shaped fixing frame, and a sub-runner body. The sub-runner body is located inside the frame-shaped fixing frame via a bracket. The four hot runner columns are respectively installed at the bottom of the sub-runner body via threaded sleeves. A main glue inlet runner is provided at the top of the sub-runner body. This utility model installs a controller mounting bracket on the side of the frame-shaped fixing frame. One side of the controller mounting bracket is equipped with a main controller and four timing controllers. A temperature-sensing control valve connected to the sub-runner body is installed above each hot runner column. Each temperature-sensing control valve is connected to each timing controller. This allows for the control of the glue inlet sequence of each hot runner column according to the time sequence, which facilitates better cooling and molding of the door panel decorative panel and ensures product quality.

Description

Technical Field

[0001] This utility model belongs to the field of molding die technology, and relates to a door panel decorative panel core-pulling and ejection injection molding die. Background Technology

[0002] With the rapid development of the automotive industry, improving the aesthetics and safety of automobiles has received widespread attention. Decorative panels are generally installed on the outer side of the rear door of automobiles, and existing decorative panels are produced by injection molding molds.

[0003] For example, the prior art disclosed in CN214395198U is an injection molding die including an upper fixed plate, a lower fixed plate, an upper template, a lower template, an upper mold core, and a lower mold core. The upper and lower fixed plates are each mounted on their respective machine bases. The upper and lower mold cores are mounted on the upper and lower fixed plates via their respective upper and lower templates. When the upper and lower templates are in the closed state, a cavity for injecting rubber is formed between the upper mold core and the corresponding lower mold core. A sprue plate with a sprue is vertically arranged on the same side as the upper template and the support plate. The upper and lower templates are connected by at least four sets of grooves and protrusions. The upper and lower templates are also connected by guide pillars and guide pillar holes located at the four corners of the upper and lower templates. This solution achieves side-entry injection molding, which can greatly reduce the space occupied during mold opening while ensuring the injection molding effect, facilitating processing and production.

[0004] The disadvantage of the injection molding mold disclosed above is that during the production of door panel decorative panels, the molten raw materials cannot be poured in stages due to the relatively long and narrow shape of the decorative panels, resulting in uneven cooling. To address this, we have designed a door panel decorative panel core-pulling and ejection injection molding mold. Summary of the Invention

[0005] The purpose of this utility model is to provide a door panel decorative panel core-pulling ejection injection molding mold to solve the problems mentioned in the background art.

[0006] The door panel decorative panel ejection injection molding mold includes an upper injection mold body and a lower injection mold body. Both the upper and lower injection mold bodies have door panel decorative panel molding cavities, which connect the upper and lower injection mold bodies for mold closing. The mold also includes a hot runner assembly, which comprises four hot runner columns, a frame-shaped fixing bracket, and a runner body. The runner body is located inside the frame-shaped fixing bracket via a support. The four hot runner columns are respectively installed at the bottom of the runner body via threaded sleeves. A main inlet runner is provided at the top of the runner body. A controller mounting bracket is installed on the side of the frame-shaped fixing frame. One main controller and four timing controllers are installed on one side of the controller mounting bracket. A pressure display gauge is installed at the end of the controller mounting bracket. A temperature-sensing control valve connected to the runner is installed above each hot runner column. Each temperature-sensing control valve is connected to each timing controller.

[0007] In the aforementioned door panel decorative panel core-pulling injection molding mold, multiple inclined core-pulling blocks 1 and 2 are movably arranged on both sides of the lower injection mold body, connecting to the door panel decorative panel molding cavity. Both inclined core-pulling blocks 1 and 2 are mounted on the lower injection mold body via inclined guide posts. One side of inclined core-pulling block 1 and one side of inclined core-pulling block 2 are provided with molding contact parts 1 and 2 connecting to the door panel decorative panel molding cavity. This arrangement aims to facilitate better lateral core pulling when the upper injection mold body separates from the lower injection mold body, making it easier to remove the molded door panel decorative panel.

[0008] In the aforementioned door panel decorative panel core-pulling and ejection injection molding mold, the upper injection mold body is provided with four through channels, each corresponding to a hot runner, ensuring that the hot runner aligns with the door panel decorative panel molding cavity. This design aims to provide a good limiting effect, ensuring the hot runner is accurately and firmly positioned on the upper injection mold body, thus facilitating the injection of molten material into the door panel decorative panel molding cavity.

[0009] In the aforementioned door panel decorative panel core-pulling injection molding mold, electric heating wires are laid on the top and bottom of the manifold. This arrangement aims to achieve good heating performance, facilitating better heating of the manifold and ensuring good fluidity of the molten material inside.

[0010] In the aforementioned door panel decorative panel core-pulling injection molding mold, a power connector is mounted on one side of the frame-shaped fixing bracket via a support column, and a wire harness fixing clip is provided on one side of the power connector. This design facilitates better positioning and fixing of the power cord connected to the power connector.

[0011] Compared with the prior art, the advantages of this utility model door panel decorative panel core-pulling ejection injection molding mold are as follows: By installing a controller mounting bracket on the side of the frame-shaped fixing frame, a main controller and four timing controllers are installed on one side of the controller mounting bracket. A temperature-sensing control valve connected to the runner is installed above each hot runner column, and each temperature-sensing control valve is connected to each timing controller. In this way, the injection sequence of each hot runner column can be controlled according to the time sequence, which can better ensure the cooling and molding of the door panel decorative panel and ensure the quality of the product. Attached Figure Description

[0012] Figure 1This is a three-dimensional structural diagram of the injection molding mold for core pulling and ejection of the door panel decorative panel of this utility model.

[0013] Figure 2 This is a three-dimensional structural diagram of the frame-shaped fixing bracket for the core-pulling and ejection injection molding mold of the door panel decorative panel of this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the mounting bracket for the door panel decorative panel core-pulling and ejection injection molding mold controller of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the manifold of the door panel decorative panel core-pulling and ejection injection molding mold of this utility model.

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the lower mold of the door panel decorative panel core-pulling and ejection injection molding mold of this utility model.

[0017] In the diagram, 1. Upper injection mold body; 2. Lower injection mold body; 3. Door panel decorative panel molding cavity; 4. Frame-shaped fixing bracket; 5. Through-hole channel; 6. Hot runner; 7. Wire harness fixing clip; 8. Power connector; 9. Runner body; 10. Main injection runner; 11. Electric heating wire; 12. Temperature sensing control valve; 13. Controller mounting bracket; 14. Main controller; 15. Timing controller; 16. Pressure display gauge; 17. Angled pull-out core pull block one; 18. Molding contact part one; 19. Angled pull-out core pull block two; 20. Molding contact part two; 21. Angled guide post. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown; as the first embodiment of this solution: the injection molding mold includes an upper injection mold body 1 and a lower injection mold body 2. Both the upper injection mold body 1 and the lower injection mold body 2 are provided with door panel decorative panel molding cavities 3. The upper injection mold body 1 and the lower injection mold body 2 are connected by the door panel decorative panel molding cavities 3. It also includes a hot runner assembly, which includes four hot runner columns 6, a frame-shaped fixing frame 4 and a runner body 9. The top and bottom of the runner body 9 are covered with electric heating wires 11, which can heat and preheat the runner body 9. This part is connected to a power connection seat 8 on one side of the frame-shaped fixing frame 4. The circuit connection is as follows: the manifold body 9 is located inside the frame-shaped fixing frame 4 via a bracket; four hot-casting columns 6 are respectively installed at the bottom of the manifold body 9 via threaded sleeves; the top of the manifold body 9 is provided with a main glue inlet channel 10; a controller mounting bracket 13 is installed on the side of the frame-shaped fixing frame 4; one main controller 14 and four timing controllers 15 are installed on one side of the controller mounting bracket 13; a pressure display gauge 16 is installed at the end of the controller mounting bracket 13; a temperature-sensing control valve 12 connected to the manifold body 9 is installed above each hot-casting column 6; each temperature-sensing control valve 12 is connected to each timing controller 15. This solution can control the glue inlet sequence of each hot-casting column according to the time sequence, which facilitates better cooling and molding of the door panel decorative panel and ensures product quality.

[0020] Furthermore, four perforated channels 5 are provided on the upper injection mold body 1, each perforated channel 5 corresponding to a hot runner 6 and such that the hot runner 6 corresponds to the door panel decorative panel molding cavity 3.

[0021] As a second embodiment of this solution: the injection molding mold includes an upper injection mold body 1 and a lower injection mold body 2. Both the upper injection mold body 1 and the lower injection mold body 2 are provided with door panel decorative panel molding cavities 3. The upper injection mold body 1 and the lower injection mold body 2 are connected by the door panel decorative panel molding cavities 3. It also includes a hot runner assembly, which includes four hot runner columns 6, a frame-shaped fixing frame 4, and a runner body 9. The runner body 9 is located inside the frame-shaped fixing frame 4 by a bracket. The four hot runner columns 6 are respectively installed in the runner body 9 by threaded sleeves. The bottom of the flow channel body 9 and the top of the branch flow channel body 9 are provided with a main glue inlet flow channel 10; multiple inclined pull-out core pull blocks 17 and 29 connecting the door panel decorative panel molding cavity 3 are movably arranged on both sides of the injection mold body 2. Both inclined pull-out core pull blocks 17 and 29 are installed on the injection mold body 2 through inclined guide posts 21; one side of inclined pull-out core pull block 17 and one side of inclined pull-out core pull block 29 are provided with molding contact parts 18 and 20 connecting the door panel decorative panel molding cavity 3.

[0022] When the upper injection mold 1 separates from the lower injection mold 2, it can better perform lateral core pulling, making it easier to remove the molded door panel decorative panel.

[0023] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A door panel decorative panel core-pulling ejection injection molding mold, including an upper injection mold body (1) and a lower injection mold body (2), wherein the upper injection mold body (1) and the lower injection mold body (2) are both provided with door panel decorative panel molding cavities (3), and the upper injection mold body (1) and the lower injection mold body (2) are connected by the door panel decorative panel molding cavities (3), and also includes a hot runner assembly, the hot runner assembly including four hot runner columns (6), a frame-shaped fixing frame (4) and a sub-runner body (9), the sub-runner body (9) is located inside the frame-shaped fixing frame (4) by a bracket, the four hot runner columns (6) are respectively installed at the bottom of the sub-runner body (9) by threaded sleeves, and the top of the sub-runner body (9) is provided with a main glue inlet runner (10), characterized in that, A controller mounting bracket (13) is installed on the side of the frame-shaped fixing bracket (4). A main controller (14) and four timing controllers (15) are installed on one side of the controller mounting bracket (13). A pressure display gauge (16) is installed at the end of the controller mounting bracket (13). A temperature-sensing control valve (12) connected to the flow channel body (9) is installed above each hot runner (6). Each temperature-sensing control valve (12) is connected to each timing controller (15).

2. The door panel decorative panel core-pulling injection molding mold according to claim 1, characterized in that, Multiple oblique pull-out core blocks one (17) and two oblique pull-out core blocks two (19) are movably arranged on both sides of the injection mold body (2) to connect the door panel decorative panel molding cavity (3). Both oblique pull-out core blocks one (17) and two oblique pull-out core blocks two (19) are installed on the injection mold body (2) through oblique guide posts (21).

3. The door panel decorative panel core-pulling injection molding mold according to claim 2, characterized in that, One side of the first (17) and the second (19) of the oblique pull-out core block are provided with a molding contact part one (18) and a molding contact part two (20) that connect to the molding cavity (3) of the door panel decorative panel.

4. The door panel decorative panel core-pulling injection molding mold according to claim 1, characterized in that, The injection molding upper mold body (1) is provided with four perforated channels (5), each perforated channel (5) corresponds to a hot runner (6) and the hot runner (6) corresponds to the door panel decorative panel molding cavity (3).

5. The door panel decorative panel core-pulling ejection injection molding mold according to claim 1, characterized in that, The top and bottom of the diversion channel (9) are covered with electric heating wires (11).

6. The door panel decorative panel core-pulling injection molding mold according to claim 1, characterized in that, A power connector (8) is installed on one side of the frame-shaped fixing bracket (4) via a support column, and a wire harness fixing clip (7) is provided on one side of the power connector (8).

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