Injection molding crater structure of tail door interior trimming panel

Abstract

The utility model provides a crater structure for injection molding of a tail door interior trimming panel, which relates to the technical field of injection molding of tail door interior trimming panels and comprises a tail door interior trimming panel and a plurality of reinforcing ribs. The reinforcing ribs are vertically arranged on the tail door interior trim panel, and crater grooves are formed in the positions, located at the connecting positions of the reinforcing ribs and the tail door interior trim panel, of the tail door interior trim panel. The reinforcing rib is located in the middle of the crater groove, and the bottom face of the reinforcing rib is fixedly attached to the groove bottom of the crater groove. Transition slopes are arranged between the two sides of the crater groove and the tail door interior trimming panel. The utility model has the advantages that by increasing the width and the transition inclined plane, the mobility is increased, the flow resistance is reduced, and the filling effect is improved, so that the problems of glue overflow of a product and dead hair on the appearance are prevented, and the purposes of improving the product quality and optimizing the production efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tailgate interior trim injection molding, in particular to an injection molding crater structure of a tailgate interior trim injection molding. Background Art

[0002] The "crater" in the mold industry refers to the shape of the mold after a volcanic eruption, which is reflected by the reduced glue part of the root of the structure such as the BOSS column or reinforcement rib. Its function is to prevent surface shrinkage. Usually, the thickness of the root of the back structure of the product is designed to be 30%-40% of the main wall thickness, and the product generally does not have the problem of appearance shrinkage. If the thickness of the root of the back structure is too large, it is necessary to design a crater structure. Products with back injection molding process usually have a crater structure designed for sealing.

[0003] If the crater height is designed too deep, the thickness of the board will be too thin, and the blanket surface will shrink. In order to meet the weight requirements, the thickness of the board cannot be increased. If the crater height is not designed enough, the product will have glue overflow problems and will also cause problems such as dead hair on the appearance. Figure 3 As shown, the structure is in the shape of a rectangular groove with a size of 0.5mmX3.0mm. When using this structure, the product will overflow with glue, resulting in dead hair and shrinkage problems on the appearance. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the injection-molded crater structure of the tailgate interior panel causes dead hair and shrinkage problems on the appearance. In order to overcome the defects of the above-mentioned prior art, the utility model provides a method of increasing the width while also increasing the transition slope, thereby increasing fluidity, reducing flow resistance, and improving the filling effect, thereby preventing product glue overflow and preventing dead hair problems on the appearance, thereby achieving the purpose of improving product quality and optimizing production efficiency.

[0005] For the purpose of this utility model, the following technical solutions are adopted:

[0006] A tailgate interior panel injection molding crater structure includes a tailgate interior panel and a plurality of reinforcing ribs; the plurality of reinforcing ribs are respectively arranged vertically on the tailgate interior panel, and a crater groove is arranged on the tailgate interior panel and at the connection between each reinforcing rib and the tailgate interior panel; the reinforcing rib is located in the middle of the crater groove, and the bottom surface of the reinforcing rib is fixedly fitted with the bottom of the crater groove; transition slopes are arranged between the two sides of the crater groove and the tailgate interior panel. The structure increases the width while also increasing the transition slope, thereby increasing fluidity, reducing flow resistance, and improving the filling effect, thereby preventing product glue overflow and preventing dead hair problems on the appearance, thereby achieving the purpose of improving product quality and optimizing production efficiency.

[0007] Preferably, the top of the transition slope is connected to the outer wall of the tailgate interior panel, and the bottom of the transition slope is connected to the bottom of the crater groove. The transition slope further plays a connecting and transition role, further increases fluidity, and reduces flow resistance.

[0008] Preferably, the bottom of the crater groove is parallel to the outer wall of the tailgate interior panel, which can further prevent product glue overflow and dead hair on the appearance, thereby improving product quality and optimizing production efficiency.

[0009] Preferably, the depth of the crater groove is 0.4-0.8 mm. By limiting the appropriate groove depth, a better injection molding effect can be achieved, which can prevent the plate thickness from being too thin due to excessive depth, resulting in shrinkage on the blanket surface, and prevent the problem of glue overflow due to too shallow products, which will also cause problems such as dead hair on the appearance.

[0010] Preferably, the depth of the crater groove is 0.6 mm, which can achieve the best injection molding effect and ensure product quality.

[0011] Preferably, the horizontal distance between the bottom end of the transition slope and the bottom end of the reinforcing rib is 1.5 to 4 mm. By limiting the width, a better injection molding effect can be achieved.

[0012] Preferably, the horizontal distance between the bottom end of the transition slope and the bottom end of the reinforcing rib is preferably 3 mm. 3 mm can achieve the best injection molding effect and ensure product quality.

[0013] To sum up, the advantages of the utility model are that the width of the crater is increased to 6.0mm, the depth is increased to 0.6mm, and a transition slope is added at the original right angle to form a slope to increase fluidity, reduce flow resistance, and improve the filling effect, thereby preventing product overflow and preventing dead hair problems on the appearance, thereby improving product quality and optimizing production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the injection-molded crater structure of the tailgate interior trim panel of the utility model.

[0015] Figure 2 It is a cross-sectional schematic diagram of the injection-molded crater structure of the tailgate interior trim panel of the utility model.

[0016] Figure 3 It is a structural schematic diagram of an existing tailgate interior panel injection-molded crater structure.

[0017] Description of reference numerals:

[0018] 1. Tailgate interior panel; 2. Reinforcement ribs; 3. Crater groove; 31. Groove bottom; 4. Transition slope. DETAILED DESCRIPTION

[0019] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0020] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0021] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 to Figure 2 As shown, a tailgate interior panel injection molding crater structure includes a tailgate interior panel 1 and a plurality of reinforcing ribs 2; the plurality of reinforcing ribs 2 are respectively arranged vertically on the tailgate interior panel 1, and a crater groove 3 is arranged on the tailgate interior panel 1 and at the connection between each reinforcing rib 2 and the tailgate interior panel 1; the reinforcing rib 2 is located in the middle of the crater groove 3, and the bottom surface of the reinforcing rib 2 is fixedly fitted with the groove bottom 31 of the crater groove 3; transition slopes 4 are arranged between the two sides of the crater groove 3 and the tailgate interior panel 1. The structure increases the transition slope while increasing the width, increases the fluidity, reduces the flow resistance, and improves the filling effect, thereby preventing the product from overflowing and preventing the problem of dead hair on the appearance, so as to achieve the purpose of improving product quality and optimizing production efficiency.

[0024] like Figure 1 and Figure 2As shown, the top of the transition slope 4 is connected to the outer wall of the tailgate interior panel 1; the bottom of the transition slope 4 is connected to the groove bottom 31 of the crater groove 3. The transition slope 4 further plays a connecting and transition role, further increases the fluidity and reduces the flow resistance. The groove bottom 31 of the crater groove 3 is arranged parallel to the outer wall of the tailgate interior panel 1. The parallel arrangement further prevents the product from overflowing glue and preventing the appearance of dead hair problems, thereby improving product quality and optimizing production efficiency.

[0025] like Figure 1 and Figure 2 As shown, the depth of the crater groove 3 is 0.4-0.8mm. By limiting the appropriate groove depth, a better injection molding effect can be achieved, which can prevent the thickness of the plate from being too thin due to excessive depth, and the blanket surface from shrinking, and prevent the problem of glue overflow due to too shallow products, which will also cause problems such as dead hair on the appearance. The groove depth of the crater groove 3 is preferably 0.6mm. 0.6mm can achieve the best injection molding effect and ensure product quality.

[0026] like Figure 1 and Figure 2 As shown, the horizontal distance between the bottom end of the transition slope 4 and the bottom end of the reinforcing rib 2 is 1.5 to 4 mm. By limiting the width, a better injection molding effect is achieved. The horizontal distance between the bottom end of the transition slope 4 and the bottom end of the reinforcing rib 2 is preferably 3 mm. 3 mm can achieve the best injection molding effect and ensure product quality.

[0027] The advantage of the utility model is that the width of the crater is increased to 6.0mm, the depth is increased to 0.6mm, and a transition slope is added at the original right angle to form a slope to increase fluidity, reduce flow resistance, and improve the filling effect, thereby preventing product glue overflow and preventing dead hair problems on the appearance, thereby achieving the purpose of improving product quality and optimizing production efficiency.

[0028] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0029] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A tailgate interior panel injection molding crater structure, characterized in that: The invention comprises a tailgate interior panel (1) and a plurality of reinforcing ribs (2); the plurality of reinforcing ribs (2) are respectively arranged vertically on the tailgate interior panel (1); a crater groove (3) is arranged on the tailgate interior panel (1) and at the connection between each reinforcing rib (2) and the tailgate interior panel (1); the reinforcing rib (2) is located in the middle of the crater groove (3), and the bottom surface of the reinforcing rib (2) is fixedly fitted with the groove bottom (31) of the crater groove (3); transition slopes (4) are arranged between the two sides of the crater groove (3) and the tailgate interior panel (1).

2. The tailgate interior panel injection molding crater structure according to claim 1, characterized in that: The top end of the transition slope (4) is connected to the outer wall of the tailgate interior trim panel (1); the bottom end of the transition slope (4) is connected to the groove bottom (31) of the crater groove (3).

3. The tailgate interior panel injection molding crater structure according to claim 1, characterized in that: The groove bottom (31) of the crater groove (3) is arranged parallel to the outer wall of the tailgate interior trim panel (1).

4. The tailgate interior panel injection molding crater structure according to claim 1, characterized in that: The depth of the crater groove (3) is 0.4-0.8 mm.

5. The tailgate interior panel injection molding crater structure according to claim 4, characterized in that: The depth of the crater groove (3) is preferably 0.6 mm.

6. The tailgate interior panel injection molding crater structure according to claim 1, characterized in that: The horizontal distance between the bottom end of the transition slope (4) and the bottom end of the reinforcing rib (2) is 1.5 to 4 mm.

7. The tailgate interior panel injection molding crater structure according to claim 5, characterized in that: The horizontal distance between the bottom end of the transition slope (4) and the bottom end of the reinforcing rib (2) is preferably 3 mm.

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