Double-shot molding decoration plate capable of preventing marks from being left

By setting a gap between the connecting ribs and the substrate of the doghouse structure of the two-color injection molded automotive decorative panel, the trace problem caused by pearled ABS material during the injection molding process is solved, and high-quality output of the decorative panel appearance is achieved.

CN222933841UActive Publication Date: 2025-06-03SHANGHAI HUAWEI CUBIC PRINTING CO LTD
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Patent Information

Application Number
CN202421702474.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-06-03
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

In the two-color injection molded automotive decorative panel, pearlescent ABS material flows through the connecting rib side of the doghouse structure, resulting in strip marks or traces on the appearance of the decorative panel, lacking effective solutions to avoid traces.

Method used

By setting a gap of 0.3-0.5 mm between the connecting ribs of the kennel structure and the substrate, the connection area between the kennel structure and the dichromatic injection molded part substrate is reduced, thereby avoiding the trace problem at the connection between the traditional connecting ribs and the substrate.

Benefits of technology

It effectively avoids the trace problems caused by the kennel structure during the injection molding process of the two-color injection molding decorative panel, and improves the appearance quality of the decorative panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile accessories. An anti-mark double-color injection molding decoration plate comprises a one-color transparent injection molding part and a two-color injection molding part made of pearlescent ABS materials, the two-color injection molding part comprises a base plate used for being connected with the one-color transparent injection molding part, the base plate is connected with a screw mounting column through a doghouse structure, and the doghouse structure comprises a connecting plate connected with the two sides of the base plate in the width direction. The connecting plate is connected with a screw mounting column; the connecting plate is of a bent structure; the doghouse structure further comprises a connecting rib used for being connected with one side of the connecting plate, the two sides, close to the base plate in the width direction, of the connecting rib are connected with the two sides, in the width direction, of the base plate, a gap is formed between the other area of the connecting rib and the base plate, and the width of the gap ranges from 0.3 mm to 0.5 mm. According to the utility model, the gap exists between the connecting rib and the base plate, so that the connecting area of the doghouse structure and the base plate of the two-color injection molding part is reduced, and the problem of trace at the connecting part of the traditional connecting rib and the base plate is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automobile trim panel. Background Art

[0002] With the diversity of current automobile trim panels, there are already trim panels using two-color injection molding. For the two-color injection molded trim panel, when the two-color injection molding material is a pearlescent modified ABS material, when the pearlescent ABS material flows through the side of the connecting rib with a doghouse structure, it will cause strip-shaped marks on the appearance side of the trim panel through the transparent one-color injection molded layer, that is, the trace structure.

[0003] Currently, there is a lack of a two-color injection molded trim panel structure that can avoid traces. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a two-color injection molded trim panel that can prevent traces, so as to solve at least one of the above technical problems.

[0005] The technical solution of the utility model is: a two-color injection molded trim panel that can prevent traces, including a one-color transparent injection molded part and a two-color injection molded part made of pearlescent ABS material. The two-color injection molded part includes a substrate for connecting the one-color transparent injection molded part. The substrate is connected to a screw mounting post through a doghouse structure. The doghouse structure is characterized in that it includes a connecting plate connecting the two sides in the width direction of the substrate, and the screw mounting post is connected to the connecting plate;

[0006] The connecting plate is in a bent structure;

[0007] The doghouse structure further includes a connecting rib for connecting one side of the connecting plate. The connecting rib is connected to the two sides in the width direction of the substrate adjacent to the two sides in the width direction of the substrate, and the remaining area of the connecting rib has a gap with the substrate. The width of the gap is 0.3-0.5 mm.

[0008] By having a gap between the connecting rib and the substrate, the utility model reduces the connection area between the doghouse structure and the substrate of the two-color injection molded part, and avoids the trace problem caused by the connection between the traditional connecting rib and the substrate.

[0009] Further preferably, the thickness of the connecting plate and the connecting rib is not greater than 1 / 3 of the thickness of the substrate.

[0010] It can prevent shrinkage marks on the surface of the substrate.

[0011] Further preferably, a positioning pin is connected to the connecting plate.

[0012] Further preferably, two doghouse structures which are symmetrically arranged in mirror image are connected to both sides of the substrate in the length direction thereof.

[0013] Further preferably, the connecting ribs of the two doghouse structures which are symmetrically arranged in mirror image are located on the side far from the two doghouse structures.

[0014] Further preferably, a concavo-convex structure is arranged on one side of the substrate adjacent to the single-color transparent injection molded part.

[0015] It is convenient for the concavo-convex visual sense.

[0016] Further preferably, the substrate includes a first bent portion, a second bent portion and a third bent portion which are sequentially connected;

[0017] A concavo-convex structure is arranged on one side of the second bent portion adjacent to the single-color transparent injection molded part;

[0018] The end of the first bent portion and the end of the third bent portion are connected by the connecting plate;

[0019] The included angle between the first bent portion and the second bent portion is 90°, and the included angle between the second bent portion and the third bent portion is greater than 90° and less than 180°.

[0020] Further preferably, the arc-shaped corner part is arranged at the position where the connecting rib faces the first bent portion and the second bent portion.

[0021] Further preferably, the gap includes a first notch portion arranged along the first bent portion, a second notch portion arranged along the second bent portion and a third notch portion arranged along the third bent portion;

[0022] The first notch portion, the second notch portion and the third notch portion are communicated with each other to form the gap.

[0023] Further preferably, the connecting plate includes a first connecting portion, a second connecting portion and a third connecting portion which are sequentially connected;

[0024] The included angle between the first connecting portion and the second connecting portion is greater than 90° and less than 180°;

[0025] The included angle between the second connecting portion and the third connecting portion is 90°;

[0026] The first connecting portion is connected to the first bent portion;

[0027] The third connecting portion is connected to the third bent portion;

[0028] The screw mounting post is connected to the third connecting portion.

[0029] Beneficial effects:

[0030] In the present utility model, there is a gap between the connecting rib and the substrate, reducing the connection area between the doghouse structure and the substrate of the two-color injection molded part, and avoiding the mark left at the connection between the traditional connecting rib and the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural view of Specific Embodiment 1 of the present utility model;

[0032] Figure 2 is a schematic structural view of the two-color injection molded part of Specific Embodiment 1 of the present utility model;

[0033] Figure 3 is a schematic structural view of the two-color injection molded part of Specific Embodiment 1 of the present utility model;

[0034] Figure 4 is a schematic structural view of the present utility model from another perspective of Specific Embodiment 1.

[0035] In the figure: 1 is a one-color transparent injection molded part, 2 is a substrate, 3 is a connecting plate, 4 is a connecting rib, 5 is a screw mounting post, 21 is a first bending part, 22 is a second bending part, 23 is a third bending part, and 41 is a gap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Refer to Figures 1 to 4 , Specific Embodiment 1, a two-color injection molded decorative panel resistant to mark left, including a one-color transparent injection molded part 1 and a two-color injection molded part made of pearlescent ABS material. The two-color injection molded part includes a substrate 2 for connecting the one-color transparent injection molded part 1. The substrate 2 is connected to the screw mounting post 5 through a doghouse structure. The doghouse structure includes connecting plates 3 connecting both sides in the width direction of the substrate 2, and screw mounting posts 5 are connected to the connecting plates 3; the connecting plates 3 are in a bent structure; the doghouse structure further includes a connecting rib 4 for connecting one side of the connecting plates 3. The connecting rib 4 is connected to both sides in the width direction of the substrate 2 adjacent to both sides in the width direction of the substrate 2, and there is a gap between the remaining area of the connecting rib 4 and the substrate 2, and the width of the gap is 0.3 - 0.5 mm. In the present utility model, there is a gap between the connecting rib 4 and the substrate 2, reducing the connection area between the doghouse structure and the substrate 2 of the two-color injection molded part, and avoiding the mark left at the connection between the traditional connecting rib 4 and the substrate 2.

[0037] The thickness of the connecting plate 3 and the connecting rib 4 is not greater than 1 / 3 of the thickness of the substrate 2. It can prevent shrink marks on the surface of the substrate 2. A positioning pin is connected to the connecting plate.

[0038] Two mirror-symmetrically arranged doghouse structures are connected to both sides in the length direction of the substrate 2.

[0039] The connecting rib 4 of the kennel structures symmetrically arranged in mirror images is located on the side of the two kennel structures away from each other.

[0040] One side of the substrate 2 adjacent to the one-color transparent injection molding part 1 is provided with a concave-convex structure, which is convenient for the concave-convex visual sense.

[0041] The substrate 2 includes a first bending part 21, a second bending part 22 and a third bending part 23 connected in sequence; one side of the second bending part 22 adjacent to the one-color transparent injection molding part 1 is provided with a concave-convex structure; the end of the first bending part 21 and the end of the third bending part 23 are connected by a connecting plate 3; the included angle between the first bending part 21 and the second bending part 22 is 90°, and the included angle between the second bending part 22 and the third bending part 23 is greater than 90° and less than 180°.

[0042] The arc-shaped corner part is located at the position where the connecting rib 4 faces the first bending part 21 and the second bending part 22.

[0043] The gap includes a first notch part arranged along the first bending part 21, a second notch part arranged along the second bending part 22 and a third notch part arranged along the third bending part 23; the first notch part, the second notch part and the third notch part are mutually communicated to form the gap.

[0044] The connecting plate 3 includes a first connecting part, a second connecting part and a third connecting part connected in sequence; the included angle between the first connecting part and the second connecting part is greater than 90° and less than 180°; the included angle between the second connecting part and the third connecting part is 90°; the first connecting part is connected to the first bending part 21; the third connecting part is connected to the third bending part 23; a screw mounting post 5 is connected to the third connecting part.

[0045] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A two-color injection molding decorative plate with anti-marking, comprising a one-color transparent injection molding part and a two-color injection molding part made of pearlescent ABS material, wherein the two-color injection molding part comprises a substrate for connecting the one-color transparent injection molding part, and the substrate is connected to the screw mounting column through a doghouse structure, characterized in that: The doghouse structure comprises a connecting plate connecting two sides of the base plate in the width direction, and the screw mounting column is connected to the connecting plate; The connecting plate is in a bent structure; The doghouse structure also includes a connecting rib for connecting one side of the connecting plate, the connecting rib is adjacent to both sides of the substrate in the width direction and is connected to both sides of the substrate in the width direction, and there is a gap between the remaining area of ​​the connecting rib and the substrate, and the width of the gap is 0.3-0.5mm.

2. The anti-marking two-color injection molding decorative plate according to claim 1, characterized in that: The thickness of the connecting plate and the connecting rib is not greater than 1 / 3 of the thickness of the base plate.

3. The anti-marking two-color injection molding decorative plate according to claim 1, characterized in that: The connecting plate is connected with a positioning pin.

4. The anti-marking two-color injection molding decorative plate according to claim 1, characterized in that: Two mirror-symmetrical doghouse structures are connected to the two sides of the base plate in the length direction.

5. The anti-marking two-color injection molding decorative plate according to claim 4, characterized in that: The connecting ribs of the two doghouse structures which are arranged in mirror symmetry are located at the far sides of the two doghouse structures.

6. The anti-marking two-color injection molding decorative plate according to claim 1, characterized in that: A concave-convex structure is arranged on one side of the substrate adjacent to the single-color transparent injection molded part.

7. The anti-marking two-color injection molding decorative plate according to claim 1, characterized in that: The substrate comprises a first bending portion, a second bending portion and a third bending portion connected in sequence; A concave-convex structure is provided on one side of the second bending portion adjacent to the single-color transparent injection molded part; The end of the first bending portion is connected to the end of the third bending portion through the connecting plate; The included angle between the first bending portion and the second bending portion is 90°, and the included angle between the second bending portion and the third bending portion is greater than 90° and less than 180°.

8. The anti-marking two-color injection molding decorative plate according to claim 7, characterized in that: The connecting rib is an arc-shaped corner portion facing the first bending portion and the second bending portion.

9. The anti-marking two-color injection molding decorative plate according to claim 7, characterized in that: The gap includes a first notch portion arranged along the first bending portion, a second notch portion arranged along the second bending portion, and a third notch portion arranged along the third bending portion; The first notch portion, the second notch portion, and the third notch portion are connected to each other to form the gap.

10. The anti-marking two-color injection molding decorative plate according to claim 7, characterized in that: The connecting plate comprises a first connecting portion, a second connecting portion and a third connecting portion which are connected in sequence; The included angle between the first connecting portion and the second connecting portion is greater than 90° and less than 180°; The included angle between the second connecting portion and the third connecting portion is 90°; The first connecting portion is connected to the first bending portion; The third connecting portion is connected to the third bending portion; The third connecting portion is connected to the screw mounting column.