Composite slanted core-pulling mechanism for automotive interior parting bumper molds

Abstract

This utility model provides a composite inclined ejector core-pulling mechanism for automotive interior parting bumper molds, including an upper bumper mold body, a lower bumper mold body, and a bumper-shaped mold core. A top mold mounting plate is installed at the lower mold base of the lower bumper mold body. Inclined ejector mounting seats are installed at the recesses on both sides of the top mold mounting plate. An inclined ejector block is installed at the top of each inclined ejector mounting seat, and a circular inclined ejector rod extending to the bumper-shaped mold core is installed on the inner side of each inclined ejector block. An inclined guide seat is installed on the side of each inclined ejector mounting seat and mounted on the top mold mounting plate. A square inclined ejector rod is installed inside each inclined guide seat. This utility model adopts a composite inclined ejector core-pulling method, eliminating the need for a segmented ejection mechanism, ensuring product integrity, and preventing product damage during ejection, thus facilitating better separation of the product from the mold.

Description

Technical Field

[0001] This utility model belongs to the field of bumper mold technology, and relates to a composite inclined core-pulling mechanism for automotive interior parting bumper molds. Background Technology

[0002] Car bumpers are generally injection molded. During the injection molding process, there are arc-shaped parting surfaces and vertical parting surfaces on the left and right sides and the front and rear sides of the bumper, and the areas are relatively large. When ejecting, directly ejecting the product can easily damage it.

[0003] For example, the precision injection mold for an internal parting type car bumper disclosed in patent publication number CN223314379U belongs to the field of mold technology. It includes an upper mold plate and a lower mold plate, with a molding cavity between the upper and lower mold plates. The lower mold plate is provided with a molding insert having a lower molding surface that forms the molding cavity. The molding insert has symmetrical arc-shaped parting surfaces on its left and right sides. After the bumper is injection molded, it can be ejected in two sections by a segmented ejection mechanism to prevent damage to the product during ejection. Specifically, the ejection action is as follows: first, the lower ejector plate moves upward. The lower ejector plate can drive the large-area straight ejector structure and the parting surface inward-pulling inclined ejector structure in the primary ejection assembly to move. The large-area straight ejector structure can eject the product as a whole, and the parting surface inward-pulling inclined ejector structure can achieve an inward-pulling action during operation, causing the arc-shaped parting surface of the lower mold plate to separate from the product.

[0004] The injection mold disclosed above uses a segmented ejection mechanism to eject the product. However, the segmented design makes the car interior parting bumper also present a segmented structure, which greatly reduces the weight. Therefore, we designed a composite inclined ejector core-pulling mechanism for the car interior parting bumper mold. Summary of the Invention

[0005] The purpose of this invention is to provide a composite inclined core-pulling mechanism for automotive interior parting bumper molds, in order to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solution: a composite inclined core-pulling mechanism for automotive interior parting bumper molds, comprising an upper bumper mold body, a lower bumper mold body, and a bumper-shaped mold core. The bumper-shaped mold core is located between the upper bumper mold body and the lower bumper mold body, enabling the upper bumper mold body and the lower bumper mold body to be closed and connected. A top mold mounting plate is installed at the lower mold base of the lower bumper mold body. Inclined top mounting seats are installed at the recesses on both sides of the top mold mounting plate. An inclined top block is installed at the top of each inclined top mounting seat. A circular inclined top rod extending to the bumper-shaped mold core is installed on the inner side of each inclined top block. Each circular inclined top rod can achieve an angle adjustment of 20-6° relative to the inclined top block. An inclined guide seat is provided on the side of each inclined top mounting seat and mounted on the top mold mounting plate. A square inclined top rod is provided inside each inclined guide seat. A forming block of the bumper-shaped mold core is connected to the top of each square inclined top rod.

[0007] In the aforementioned composite angled core-pulling mechanism for automotive interior parting bumper molds, two vertically distributed core inserts are mounted on the top of the top mold mounting plate. Each core insert has a corresponding bumper-shaped mold core forming contour on its sidewall. This design allows for efficient forming of the automotive interior parting bumper and facilitates better separation of the bumper from the mold during the angled core-pulling process.

[0008] In the aforementioned composite angled ejector core-pulling mechanism for automotive interior parting bumper molds, a side core-pulling block is installed on one side of the upper bumper mold. A bumper side forming core, connected to the bumper mold core, is installed on one side of the side core-pulling block. Two symmetrically distributed core-pulling cylinders are installed on the other side of the side core-pulling block, and the output shafts of the two cylinders are connected to the bumper side forming core. This design aims to achieve a good side-pulling core-pulling effect, facilitating rapid angled ejector separation and demolding.

[0009] In the aforementioned composite inclined core-pulling mechanism for automotive interior parting bumper molds, two sets of guide rails are provided on the guide platform of the side core-pulling block. The bumper side forming core is guided and connected to the side core-pulling block through the two sets of guide rails. This design aims to provide a good guiding effect, ensuring good stability of the bumper side forming core during the core-pulling process.

[0010] In the aforementioned composite inclined core-pulling mechanism for automotive interior parting bumper molds, air intake pipes are installed at the two air holes of the bumper side forming core. The passage of air through these two pipes allows the bumper side forming core to move laterally. This design aims to further accelerate the core-pulling operation of the bumper side forming core, ensuring high efficiency.

[0011] Compared with the prior art, the advantages of the composite inclined ejector core-pulling mechanism of the automotive interior parting bumper mold of this utility model are as follows: by installing inclined ejector mounting seats at the recesses on both sides of the top mold mounting plate, an inclined ejector block is installed at the top of each inclined ejector mounting seat, and a circular inclined ejector rod extending to the bumper mold core is installed on the inner side of each inclined ejector block. An inclined guide seat is set on the side of each inclined ejector mounting seat and installed on the top mold mounting plate. A square inclined ejector rod is set inside each inclined guide seat, and a forming block of the bumper mold core is connected to the top of each square inclined ejector rod. By adopting a composite inclined ejector core-pulling method, there is no need to use a segmented ejection mechanism, which ensures the integrity of the product and prevents the product from being damaged during ejection, and facilitates better separation of the product mold. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the composite inclined core-pulling mechanism of the automotive interior parting bumper mold of this utility model.

[0013] Figure 2 This is a three-dimensional structural diagram of the side core-pulling block of the composite inclined top core-pulling mechanism of the automotive interior parting bumper mold of this utility model.

[0014] Figure 3 This is a schematic diagram of the circular inclined push rod of the composite inclined push core pulling mechanism of the automotive interior parting bumper mold of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the composite inclined top core-pulling mechanism for the automotive interior parting bumper mold, which is a schematic diagram of the bumper side forming core.

[0016] In the diagram, 1. Upper bumper mold body; 2. Lower bumper mold body; 3. Top mold mounting plate; 4. Side core-pulling block; 5. Angled ejector mounting seat; 6. Angled ejector block; 7. Circular Angled ejector rod; 8. Angled guide seat; 9. Square Angled ejector rod; 10. Forming block; 11. Core insert; 12. Forming contour; 13. Side forming core of bumper; 14. Core-pulling cylinder; 15. Guide rail; 16. Air intake pipe; 17. Bumper mold core. Detailed Implementation

[0017] 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.

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a technical solution for a composite inclined core-pulling mechanism for automotive interior parting bumper molds: As a first embodiment of this solution: the mechanism includes an upper bumper mold body 1, a lower bumper mold body 2, and a bumper-shaped mold core 17. The bumper-shaped mold core 17 is located between the upper bumper mold body 1 and the lower bumper mold body 2, enabling the upper bumper mold body 1 and the lower bumper mold body 2 to be closed and connected. A top mold mounting plate 3 is installed at the lower mold base of the lower bumper mold body 2. An inclined ejector mounting seat 5 is installed at the recesses on both sides of the top mold mounting plate 3. An inclined ejector block 6 is installed at the top of each inclined ejector mounting seat 5. A circular inclined ejector rod 7 extending to the bumper-shaped mold core 17 is installed on the inner side of each inclined ejector block 6. Each circular inclined ejector rod 7 can achieve an angle adjustment of 20-6° relative to the inclined ejector block 6. An inclined guide seat 8 is provided on the side of each inclined ejector mounting seat 5 and installed on the top mold mounting plate 3. A square inclined ejector rod 9 is provided inside each inclined guide seat 8. A forming block 10 of the bumper-shaped mold core 17 is connected to the top of each square inclined ejector rod 9. This solution adopts a composite angled ejector core-pulling method, eliminating the need for a segmented ejection mechanism, ensuring product integrity, and preventing product damage during ejection, while facilitating better separation of the product from the mold.

[0019] As a second embodiment of this solution: Based on the first embodiment, two vertically distributed core inserts 11 are installed at the top of the top mold mounting plate 3. The side wall of each core insert 11 is provided with a forming contour 12 corresponding to the bumper mold core 17. This enables good forming of the interior parting bumper of the car, and at the same time, it can better separate the bumper from the mold during the inclined core pulling process.

[0020] As a second embodiment of this solution: Based on the first embodiment, a side core-pulling block 4 is installed on one side of the bumper mold body 1. A bumper side forming core 13 connected to the bumper mold core 17 is installed on one side of the side core-pulling block 4. Two symmetrically distributed core-pulling cylinders 14 are installed on the other side of the side core-pulling block 4. The output shafts of the two core-pulling cylinders 14 are connected to the bumper side forming core 13. Two sets of guide rails 15 are provided on the guide platform of the side core-pulling block 4. The bumper side forming core 13 is guided and connected to the side core-pulling block 4 through the two sets of guide rails 15.

[0021] Furthermore, in order to facilitate greater separation force, air intake pipes 16 are installed at the two air holes of the bumper side molding core 13. The air intake pipes 16 allow air to pass through, causing the bumper side molding core 13 to move laterally.

[0022] 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 composite inclined core-pulling mechanism for automotive interior parting bumper molds, comprising an upper bumper mold body (1), a lower bumper mold body (2), and a bumper-shaped mold core (17), wherein the bumper-shaped mold core (17) is located between the upper bumper mold body (1) and the lower bumper mold body (2) and enables the upper bumper mold body (1) and the lower bumper mold body (2) to be molded together, characterized in that; A top mold mounting plate (3) is installed at the lower mold base of the lower mold body (2) of the bumper. An inclined top mounting seat (5) is installed at the recess on both sides of the top mold mounting plate (3). An inclined top block (6) is installed at the top of each inclined top mounting seat (5). A circular inclined top rod (7) extending to the bumper mold core (17) is installed on the inner side of each inclined top block (6). An inclined guide seat (8) is installed on the side of each inclined top mounting seat (5) and a square inclined top rod (9) is installed inside each inclined guide seat (8). A forming block (10) of the bumper mold core (17) is connected to the top of each square inclined top rod (9).

2. The composite inclined core-pulling mechanism for automotive interior parting bumper molds according to claim 1, characterized in that, The top of the top mold mounting plate (3) is equipped with two upright core inserts (11), and the side wall of each core insert (11) is provided with the molding outline (12) of the corresponding bumper mold core (17).

3. The composite inclined core-pulling mechanism for automotive interior parting bumper molds according to claim 1, characterized in that, A side core-pulling block (4) is installed on one side of the upper mold body (1) of the bumper. A bumper side forming core (13) connected to the bumper mold core (17) is installed on one side of the side core-pulling block (4). Two symmetrically distributed core-pulling cylinders (14) are installed on the other side of the side core-pulling block (4). The output shafts of the two core-pulling cylinders (14) are connected to the bumper side forming core (13).

4. The composite inclined core-pulling mechanism for automotive interior parting bumper molds according to claim 3, characterized in that, The guide platform of the side core-pulling block (4) is provided with two sets of guide rails (15), and the bumper side molding core (13) is guided and connected to the side core-pulling block (4) through the two sets of guide rails (15).

5. The composite inclined core-pulling mechanism for automotive interior parting bumper molds according to claim 4, characterized in that, The bumper side molding core (13) has two air holes with air intake pipes (16) installed. The two air intake pipes (16) allow air to pass through, causing the bumper side molding core (13) to move laterally.

6. The composite inclined core-pulling mechanism for automotive interior parting bumper molds according to claim 1, characterized in that, Each of the circular inclined rods (7) can achieve an angle adjustment of 20-6° relative to the inclined block (6).

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