Automobile trim panel and injection mold thereof

Abstract

The utility model discloses an automobile decoration plate. A top seat integrally formed with a platy decoration plate body is arranged at the plate edge position of the platy decoration plate body. The injection mold of the automobile trim panel comprises an upper mold and a lower mold, the upper mold is provided with an upper mold forming surface, the lower mold is provided with a lower mold forming surface matched with the upper mold forming surface to form a trim panel body, the lower mold forming surface is further provided with a cavity used for forming a top seat, and an ejector rod is arranged below the position where the cavity is located. The driving mechanism drives the ejector rod to move upwards to jack the ejector base to be separated from the lower die forming face. During injection molding, the top seat is integrally formed at the plate edge position of the decoration plate body, and during subsequent demolding, the top rod on the lower mold moves upwards and can jack the top seat instead of the plate surface of the decoration plate body, so that the top seat and the decoration plate body are separated from the molding surface of the lower mold, the decoration plate body can be prevented from being ejected to form marks, and the product quality is ensured. Meanwhile, the footstock can be cut off subsequently, and normal use of the product is not affected.

Description

Technical Field

[0001] The utility model relates to an automobile decorative plate, in particular to an automobile decorative plate and an injection mold thereof. Background Art

[0002] In order to improve the aesthetics of the front face of a car, as shown in FIG1 , a decorative panel a with a certain color, such as a silver decorative panel, is usually added to the front face of the car. This decorative panel not only improves the aesthetics of the front face of the car, but also provides an installation location for the car logo. This is especially common in new energy vehicles.

[0003] At present, the processing of the above-mentioned decorative panels generally adopts the injection molding process for integrated molding. During the injection molding process, the decorative panel is formed by the molding surfaces on the upper mold and the lower mold. In order to facilitate the demoulding of the decorative panel and the molding surface on the lower mold, the existing mold is usually equipped with an ejection mechanism to lift the newly injection-molded decorative panel away from the molding surface of the lower mold. Figure 2 As shown, the existing trim panel ejection mechanism includes a push rod 1, with a push block 2 disposed at its upper end. When the driving mechanism drives the push rod 1 upward, the push block 2 pushes against the surface of trim panel A, thereby promoting demolding of trim panel A. The surface of trim panel A serves as a decorative surface, and its integrity is particularly important. Since the newly injection-molded trim panel A is not fully solidified, there is a risk that the push block 2 will squeeze out the surface of trim panel A when it is lifted, which can easily cause defects in the product, affecting its appearance and quality. Summary of the Invention

[0004] The primary purpose of the utility model is to provide an automobile decorative panel, which can avoid the formation of top block marks on the panel surface when the decorative panel is lifted for demoulding, thereby ensuring the quality of the product.

[0005] In order to achieve the above purpose, the adopted technical solution is: an automobile trim panel, wherein a top seat integrally formed with the trim panel body is provided at the edge of the plate.

[0006] Another object of the present invention is to provide an injection mold for molding the product in the primary purpose. The injection mold adopts the following technical solutions:

[0007] The injection mold of the automobile trim panel includes an upper mold and a lower mold. The upper mold is provided with an upper mold molding surface, and the lower mold is provided with a lower mold molding surface that cooperates with the upper mold molding surface to mold the trim panel body. The lower mold molding surface is also provided with a cavity for molding a top seat, and a push rod is arranged below the position of the cavity. The driving mechanism drives the push rod to move upward to lift the top seat away from the lower mold molding surface.

[0008] Compared with the existing technology, the technical effect of this utility model is as follows: during injection molding, a top seat is integrally formed at the edge of the decorative panel body. During subsequent demolding, the ejector pin on the lower mold moves upward, pressing the top seat instead of the decorative panel body surface, thereby separating the top seat and the decorative panel body from the molding surface of the lower mold. This can prevent the decorative panel body from being pressed and marks, thus ensuring product quality. At the same time, the top seat can be removed later without affecting the normal use of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1a It is a schematic diagram of a decorative plate in the prior art;

[0010] Figure 1b Schematic diagram of the relative positions of the ejector rod, ejector block and decorative plate in the prior art;

[0011] Figure 2 、 Figure 3 This is a schematic diagram of the arrangement of the decorative panel body and the relative ejector rods of the present invention;

[0012] Figure 4 for Figure 3 A magnified view of part N in FIG.

[0013] Figure 5 for Figure 2 K1 view in the figure;

[0014] Figure 6a for Figure 2 A partial schematic diagram of the K2 direction view in FIG;

[0015] Figure 6b Schematic diagram of the assembly position of the trim panel body and the vehicle body. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to Figures 1-6 and related content:

[0017] A car trim panel is provided. A top seat 11 integrally formed with the trim panel body 10 is provided at the edge of a plate-shaped trim panel body 10 .

[0018] In the above solution, during injection molding, a top seat 11 is integrally formed at the edge of the decorative panel body 10. This top seat 11 serves as a pressure-bearing component during subsequent demolding. When the ejector pin A moves upward, it presses against the top seat 11 rather than the surface of the decorative panel body 10, thereby separating the top seat 11 and the decorative panel body 10 from the molding surface of the mold. This prevents marks on the decorative panel body 10 from being pressed, thus ensuring product quality. Furthermore, the top seat 11 can be removed later without affecting the normal use of the decorative panel body 10.

[0019] Furthermore, considering the long length of the decorative panel body 10, if the push rod A pressed against the short side of the decorative panel body 10 instead of the long side, the middle of the decorative panel body 10 might be bent. Therefore, the top seats 11 are arranged on the long side of the decorative panel body 10, and the top seats 11 are spaced along the length of the decorative panel body 10. This way, the two top seats 11 facing each other on the two long sides are relatively close to each other. When the push rod A is lifted, the stress on the decorative panel body 10 is more stable, the middle part is less likely to deform, and the decorative panel body 10 can be demolded intact.

[0020] As a preferred solution, a gusset plate edge 12 protruding toward the back of the trim body 10 is provided on the long edge of the trim body 10, and the top seat 11 is connected to the free edge of the gusset plate edge 12. The provision of the gusset plate edge 12 in this solution not only provides a structure for the trim body 10 to connect with the vehicle body, but also increases the structural strength of the trim body 10 at the edge. Under the premise that the top seat 11 is provided on the gusset plate edge 12, when the top rod A presses the top seat 11, the edge of the trim body 10 is less likely to deform. In addition, the top seat 11 is connected to the free edge of the gusset plate edge 12, and the connection surface between the top seat 11 and the gusset plate edge 12 is small, which makes it easy to remove the top seat 11 later.

[0021] Further, combined with Figure 3 and Figure 4 As shown, the top seat 11 is Z-shaped as a whole and one end of the top seat 11 is connected to the free edge of the gusset plate edge 12, and the other end of the top seat 11 is bent and extended outside the panel area on the back of the decorative panel body 10. This is because if the top seat 11 is bent and extended into the panel area on the back of the decorative panel body 10, the molding of the top seat 11 has to be completed independently by the lower mold, and the cavity for molding the top seat 11 is located below the molding surface of the decorative panel body 10. During demolding, the top seat 11 is blocked by the molding surface of the decorative panel body 10 and is difficult to be ejected upward. In this solution, the top seat 11 is bent and extended outside the panel area of ​​the decorative panel body 10, and the cavity for molding the top seat 11 can be formed by the cooperation of the upper mold and the lower mold. During demolding, after the upper mold is removed, the top of the top seat 11 is open, and the top seat 11 will not interfere with the mold, ensuring smooth demolding of the top seat 11.

[0022] Combine Figure 6a and Figure 6b As shown, based on the assembly requirements of the vehicle, the plate surfaces of the two long plate edges 12 on the decorative plate body 10 are parallel to each other, and the plate surfaces of the plate edges 12 are arranged obliquely with the plate surface of the decorative plate body 10, so that the decorative plate body 10 can be arranged on the front face of the car in an inclined posture. Figure 6b For example, the left and right directions in the figure are the length directions of the vehicle body and the right side is the outer side of the front of the vehicle. The lower part of the trim body 10 is the front grille of the car, and the upper part is located on the cover extending to the front cabin.

[0023] In addition, the present application provides an injection mold for molding the above-mentioned automobile trim panel, including an upper mold and a lower mold, the upper mold is provided with an upper mold molding surface, and the lower mold is provided with a lower mold molding surface that cooperates with the upper mold molding surface to mold the trim panel body 10. The lower mold molding surface is also provided with a cavity for molding a top seat 11, and a push rod A is provided below the position of the cavity. The driving mechanism drives the push rod A to move upward to lift the top seat 11 away from the lower mold molding surface.

[0024] In the above solution, during demolding, the drive mechanism drives the ejector pin A upward, lifting it into the mold cavity for forming the ejector seat 11. Thereby, the ejector pin directly presses the ejector seat 11 rather than the surface of the decorative panel body 10. This allows the ejector seat 11 and the decorative panel body 10 to separate from the molding surface of the lower mold. This prevents the ejector pin A from pressing the surface of the decorative panel body 10 and causing a top mark on the decorative panel body 10, thereby ensuring product quality. It should be noted that although the upper and lower molds are not shown in the accompanying drawings, this does not affect the description of the mold in this solution.

[0025] Furthermore, a groove cavity for forming the gusset plate edge 12 is provided on the forming surface of the lower mold, the groove depth direction of the groove cavity for forming the gusset plate edge 12 is located in the plumb direction, and the cavity for forming the top seat 11 is located on the bottom surface of the groove cavity for forming the gusset plate edge 12 on the forming surface of the lower mold.

[0026] The panel surface of the decorative panel body 10 is arranged at an angle on the lower mold forming surface, and the two long panel edges arranged opposite to each other are one high and one low. The buckle panel edge 12 connected to the long panel edge of the decorative panel body 10 is arranged vertically in the groove cavity on the lower mold forming surface.

[0027] In this solution, the groove depth direction of the groove cavity used to form the gusset plate edge 12 is located in the plumb direction, so that the formed gusset plate edge 12 is arranged vertically as a whole. When the push rod A lifts the top seat 11 upward, the pushing force received by the gusset plate edge 12 is arranged along the groove depth direction of the groove cavity used to form the gusset plate edge 12. The gusset plate edge 12 is not blocked by the groove wall when demolding, thereby facilitating demolding.

[0028] In addition, cavities for forming the top seat 11 are provided on the two long plate edges of the decorative panel body 10 on the molding surface of the lower mold, and a push rod A is provided below the position of each cavity. When the push rod A moves upward, the push force exerted on the decorative panel body 10 is more evenly distributed, ensuring that the decorative panel body 10 completes the demolding process stably and smoothly.

Claims

1. An automobile trim panel, characterized in that: A top seat (11) formed integrally with the decorative plate body (10) is provided at the edge of the plate. The top seat (11) is arranged on the long board edge of the decorative plate body (10), and the top seat (11) is arranged at intervals along the board length direction of the decorative plate body (10); A gusset plate edge (12) is provided on the long plate edge of the decorative plate body (10) and protrudes toward the back of the decorative plate body (10), and the top seat (11) is connected to the free edge of the gusset plate edge (12).

2. The automobile trim panel according to claim 1, wherein: The top seat (11) is Z-shaped as a whole, and one end of the top seat (11) is connected to the free edge of the gusset plate edge (12), and the other end of the top seat (11) is bent and extended outside the panel area on the back of the decorative panel body (10).

3. The automobile trim panel according to claim 1, wherein: The plate surfaces of the gusset plate edges (12) at the two long plate edge positions on the decorative plate body (10) are parallel to each other, and the plate surfaces of the gusset plate edges (12) are arranged obliquely to the plate surface of the decorative plate body (10).

4. An injection mold for the automobile trim panel according to any one of claims 1 to 3, comprising an upper mold and a lower mold, wherein the upper mold is provided with an upper mold forming surface, and the lower mold is provided with a lower mold forming surface that cooperates with the upper mold forming surface to form the trim panel body (10), characterized in that: A cavity for forming a top seat (11) is also provided on the lower die forming surface, and a push rod (A) is provided below the position where the cavity is located. The driving mechanism drives the push rod (A) to move upward to lift the top seat (11) away from the lower die forming surface.

5. The injection mold for automobile trim according to claim 4, characterized in that: A groove cavity for forming the gusset plate edge (12) is provided on the lower mold forming surface, the groove depth direction of the groove cavity for forming the gusset plate edge (12) is located in the plumb direction, and the cavity for forming the top seat (11) is located on the groove bottom surface of the groove cavity for forming the gusset plate edge (12) on the lower mold forming surface.

6. The injection mold for automobile trim according to claim 5, characterized in that: The plate surface of the decorative plate body (10) is arranged obliquely on the lower mold forming surface, and the two long plate edges arranged opposite to each other are one high and one low. The buckle plate edge (12) connected to the long plate edge of the decorative plate body (10) is vertically arranged in the groove cavity on the lower mold forming surface.

7. The injection mold for automobile trim according to claim 4, characterized in that: Cavities for forming a top seat (11) are provided on the lower mold forming surface at the two long plate edges of the decorative plate body (10), and a push rod (A) is provided below the position where each cavity is located.

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