Low-pressure injection molding structure of automotive interior soft decoration skin

Abstract

The utility model discloses an automobile interior soft decoration skin low-pressure injection molding structure which comprises a soft decoration skin, an auxiliary instrument panel framework and sewing threads, the soft decoration skin comprises a skin processing layer, a skin compact layer, a skin foaming layer, base cloth, polyester / polyether sponge and heat insulation non-woven fabric, and the heat insulation non-woven fabric and the auxiliary instrument panel framework are integrally injected. The polyester / polyether sponge is attached to the heat insulation non-woven fabric through flame or glue, and the gram weight of the heat insulation non-woven fabric is selected to be 150-190 g. The utility model not only meets the requirements of soft interiors, but also enables the interiors to look luxurious. Compared with a carpet fabric wrapping side plate, the process is simplified, the production takt is shortened, and energy consumption is reduced; glue is not used, so that the smell is better; the thickness is reduced, and sufficient space is reserved for a seat; due to the integral forming process, the bonding force between the soft decoration skin and the framework is large, and bulging is not prone to occurring; the surface of the soft decoration skin is smooth and clean and is easier to clean; sponge can be compounded behind the soft decorative skin to further improve the hand feeling; the sewing effect can be customized, and the automobile interior grade is improved.

Description

Technical Field

[0001] The utility model relates to automobile interior decoration, in particular to a soft decorative surface skin of automobile interior decoration. Background Art

[0002] With the development of the automobile industry, especially the rise of new energy vehicles, automobile interiors are becoming increasingly diversified, soft-decorated and luxurious. The side panels of the sub-dashboards of new energy vehicles are usually made of hard plastic or carpet fabric. As automobile interiors become increasingly luxurious, the side panels of the sub-dashboards covered with carpet fabrics can no longer meet the needs of consumers. Utility Model Content

[0003] In order to make up for the above shortcomings, the purpose of the utility model is to develop a low-pressure injection molding structure for the soft decorative skin of the side panel of an automobile auxiliary instrument, which not only meets the requirements of soft interior decoration, but also makes the interior decoration look more luxurious.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A low-pressure injection molding structure of a soft decorative skin for automobile interior, comprising a soft decorative skin, a sub-instrument panel frame and stitching, wherein the soft decorative skin comprises a skin treatment layer, a skin dense layer, a skin foaming layer, a base cloth, a polyester / polyether sponge and a thermal insulation non-woven fabric, wherein the thermal insulation non-woven fabric is integrally injection molded with the sub-instrument panel frame, the polyester / polyether sponge and the thermal insulation non-woven fabric are flame or adhesively bonded, and the gram weight of the thermal insulation non-woven fabric is selected to be 150-190g.

[0006] The auxiliary instrument panel frame is made of PP+EPDM-T20 and PP-T20 materials.

[0007] The soft decorative surface is made of heat-resistant PVC surface and heat-resistant PU surface.

[0008] The utility model not only meets the requirements of soft interior decoration, but also makes the interior decoration look more luxurious. Compared with the carpet fabric covering the side panel, the process is streamlined, the production cycle is shortened, and the energy consumption is reduced; no glue is used, and the smell is better; the thickness is reduced, leaving enough space for the seat; the one-piece molding process, the soft surface and the frame have a greater bonding force, and it is not easy to bulge; the surface of the soft surface is flat and smooth, and it is easier to take care of; the back of the soft surface can be compounded with sponge to further improve the feel; the stitching effect can be customized to improve the grade of the car interior. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 for Figure 1 sectional view of . DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] Reference Figure 1 - Figure 2 A low-pressure injection molding structure of a soft decorative skin for automobile interior, including a soft decorative skin, a sub-instrument panel frame 2 and stitches 3. The soft decorative skin includes a skin treatment layer 1a, a skin dense layer 1b, a skin foaming layer 1c, a base fabric 1d, a polyester / polyether sponge 1e, and a thermal insulation non-woven fabric 1f. The thermal insulation non-woven fabric 1f is integrally injection molded with the sub-instrument panel frame 2. The polyester / polyether sponge 1e and the thermal insulation non-woven fabric 1f are bonded by flame or glue. The gram weight of the thermal insulation non-woven fabric is selected from 150-190g.

[0013] The utility model adopts low-pressure injection molding technology, and the soft decorative skin is directly hung in the mold, and the composite of the skeleton and the skin is realized in one step during the injection molding process. Compared with conventional coating, it saves the activation treatment of the skeleton, spraying glue and manual coating and other processes, shortens the cycle and improves production efficiency. The low-pressure injection molding process is adopted. Compared with coating, no glue is used, and the odor, VOC and other emission performances are better. The carpet fabric coating side panels generally have a carpet thickness of 4-5mm or even thicker. In some compact cars, the space inside the car is relatively tight. The use of thicker fabrics will affect the position of the slide rails of the left and right seats. The thickness of the soft decorative skin in the utility model is only 2-3mm after the skin is formed, which saves space.

[0014] The utility model adopts one-piece injection molding, during which the heat-insulating non-woven fabric is fused with the molten plastic skeleton, which has a strong bonding force and is not prone to bulging. The soft decorative surface is generally heat-resistant PVC surface and heat-resistant PU surface. Compared with carpet fabrics, it feels softer, is not easy to pilling due to friction, and has a smooth surface that is easier to clean, keeping the car clean.

[0015] In order to avoid problems such as surface penetration or disappearance of texture due to excessive material temperature, the skeleton material of the utility model is generally PP+EPDM-T20 and PP-T20 with lower injection temperature.

[0016] To avoid problems such as excessive material temperature causing the surface to seep through or the texture to disappear, the soft surface is generally made of heat-resistant PVC and heat-resistant PU. The soft surface can be customized with real stitching, making the shape more diverse and improving the interior grade.

[0017] The main advantage of the utility model is that while meeting the soft-touch and luxurious requirements of the auxiliary instrument panel side panel, the production cycle is reduced, the emission in the car is reduced, and the effect of energy saving, emission reduction, environmental protection and low carbon is achieved.

[0018] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-pressure injection molding structure for soft decorative skin of automobile interior, characterized in that: The invention comprises a soft decorative surface, a sub-instrument panel frame (2) and stitching (3), wherein the soft decorative surface comprises a surface treatment layer (1a), a surface dense layer (1b), a surface foam layer (1c), a base fabric (1d), a polyester / polyether sponge (1e) and a heat insulating non-woven fabric (1f), wherein the heat insulating non-woven fabric (1f) is integrally injection-molded with the sub-instrument panel frame (2), and the polyester / polyether sponge (1e) and the heat insulating non-woven fabric (1f) are flame-bonded or glue-bonded, and the weight of the heat insulating non-woven fabric is selected to be 150-190 g.

2. The low-pressure injection molding structure of the soft surface of the automobile interior decoration according to claim 1 is characterized in that: The auxiliary instrument panel frame is made of PP+EPDM-T20 or PP-T20 material.

3. The low-pressure injection molding structure of the automotive interior soft surface according to claim 1, characterized in that: The soft decorative surface is made of heat-resistant PVC surface and heat-resistant PU surface.

Images