Novel soft interior trim part

Abstract

The utility model belongs to the field of automotive upholstery, and particularly relates to a novel soft upholstery which comprises a surface layer and a framework layer, a hollowed-out structure is designed in the middle of the back face of the surface layer, the framework layer is located in the hollowed-out structure, the edge of the surface layer is in lap joint with the edge of the back face of the framework layer, and the surface layer and the framework layer are bonded together through injection molding. The surface layer is made of a thermoplastic elastomer material, the framework layer is made of a polypropylene material or a polycarbonate material, the thermoplastic elastomer material and the polypropylene material or the polycarbonate material have adhesion, and the thickness of the surface layer is not less than 3mm. The hand feeling of the soft wrapping piece is achieved in an injection molding mode, glue is prevented from being used, the material cost and the process cost are reduced, and the part forming rhythm and the percent of pass are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automotive interior parts, and particularly relates to a novel soft interior part. BACKGROUND

[0002] At present, no matter whether it is a fuel vehicle or a new energy vehicle, as long as the part contacted by the driver and passenger in the automotive interior part is desired to achieve a soft touch effect and improve the comfort of the whole vehicle. The commonly used scheme is to coat a layer of soft material on the plastic part framework, and the layer of soft material is generally composed of 3D-MESH and a skin layer or polyurethane foam material and a sponge layer. The commonly used scheme needs to use glue material in the coating process, which greatly increases the material cost and process cost of the parts, and also causes the cost of the whole vehicle to increase to a certain extent. At the same time, due to the performance limitation of the skin, the modeling design of the parts is limited to a certain extent, which also causes the qualified rate to be low in the subsequent part production and manufacturing process, and affects the cost and capacity. UTILITARY MODEL CONTENT

[0003] In order to solve the above problems existing in the prior art, the utility model provides a novel soft interior part, which realizes the hand feeling of the soft coating part by injection molding, avoids using glue, reduces the material cost and process cost, and improves the molding rhythm and qualified rate of the parts.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme: a novel soft interior part, comprising a surface layer and a framework layer, a hollow structure is designed in the middle of the back surface of the surface layer, the framework layer is located in the hollow structure, the edge of the surface layer is lapped on the edge of the back surface of the framework layer, the surface layer and the framework layer are bonded together by injection molding, the surface layer adopts a thermoplastic elastomer material, the framework layer adopts a polypropylene material or a polycarbonate material, the thermoplastic elastomer material and the polypropylene material or the polycarbonate material have adhesion between them, and the thickness of the surface layer is not less than 3mm.

[0005] Further, the surface layer comprises a foamed layer and a dense layer, the dense layer is wrapped on the outer surface of the foamed layer, the thickness of the dense layer is less than the thickness of the foamed layer, the framework layer comprises a back structure and a plane layer, and the plane layer is bonded together with the surface layer.

[0006] Compared with the prior art, the soft covering piece has the hand feeling realized through the injection molding mode, and various appearance effects such as light transmission and night light can be realized through the combination design of different materials, so that more flexible assembly selection is provided; the characteristics between the surface layer and the skeleton layer material make the skeleton layer and the surface layer realize good bonding after the injection molding is completed, the use of glue is avoided, the cost and the source of volatile organic compounds are reduced; in addition, because the covering process is reduced, the waste caused by skin cutting and the labor cost caused by skin covering can be reduced or even eliminated, the production site area of the automobile decoration piece can be reduced, and the factory utilization rate can be improved; because the injection molding process is used, the design freedom of the part can be greatly improved, and the forming rhythm and the qualified rate of the part are also significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is a structural schematic view of the utility model;

[0008] Figure 2 is a structural schematic view of the surface layer of the utility model;

[0009] Figure 3 is a structural schematic view of the skeleton layer of the utility model;

[0010] Figure 4 is a modeling design schematic view of the surface layer of the utility model. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0012] Please refer to Figures 1-4The utility model provides the following technical scheme: A novel soft interior trim part, including surface layer 1 and framework layer 2, surface layer 1 back middle part designs hollow structure, framework layer 2 is located in the hollow structure, surface layer 1 edge overlaps on the edge of framework layer 2 back, surface layer 1 needs with framework layer 2 in part back design local counter package, avoids the influence appearance of part after degumming, surface layer 1 adopts thermoplastic elastomer material, framework layer 2 adopts polypropylene material or polycarbonate material, thermoplastic elastomer material and polypropylene material or polycarbonate material between all have adhesion, surface layer 1 and framework layer 2 are bonded together through injection molding, do not use glue in forming, reduce cost and volatile organic compound source, thermoplastic elastomer material has good formability, can realize the forming of complex modeling, thermoplastic elastomer can satisfy various performance requirements of automobile interior trim part through modification, thermoplastic elastomer can realize different appearance effects through the addition of different fillers, therefore select thermoplastic elastomer material as surface layer 1 material, the selection of polypropylene material or polycarbonate material is according to the performance requirement of different parts and the material of hand piece is different, and the two kinds of materials can all realize pure transparency, semi-transparency and various color effects, provide a variety of scheme selection for the design of modeling, the thickness of surface layer 1 is not less than 3mm, so as to realize good touch, the utility model realizes the hand feeling of soft covering piece through the mode of injection molding, also can realize light transmission, night light and a variety of appearance effects through the combination design of different materials, provide more flexible assembly selection.

[0013] Specifically, the surface layer 1 comprises a foamed layer 3 and a dense layer 4, the dense layer 4 is wrapped on the outer surface of the foamed layer 3, and the thickness of the dense layer 4 is less than the thickness of the foamed layer 3, the foaming effect of the foamed layer 3 determines the hardness of the surface layer 1, and the process needs to be adjusted according to the actual hand feeling, the framework layer 2 comprises a back structure 5 and a plane layer 6, the plane layer 6 is bonded with the surface layer 1 to form a good adhesive force, the back structure 5 can be designed according to the matching requirements of the parts, the material of the framework layer 2 provides a transmission effect, and the light transmittance of the material of the framework layer 2 can be adjusted according to the brightness of the back light source of the framework layer 2 and different requirements of customers to meet the final requirements of the customers.

[0014] The injection molding process of the utility model is as follows: first, the materials of the surface layer 1 and the framework layer 2 are selected according to the requirements of customers, then the materials of the surface layer 1 and the framework layer 2 are put into an injection molding machine to be injection molded so that the surface layer 1 and the framework layer 2 are bonded together to realize the hand feeling of the soft covering piece, and through the combination design of different materials, a variety of appearance effects such as light transmission and night light are realized to provide more flexible assembly selection.

[0015] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A new soft interior trim characterized in that, The surface layer (1) and the skeleton layer (2) are included, the surface layer (1) is hollowed in the back middle design, the skeleton layer (2) is located in the hollow structure, the surface layer (1) is overlapped on the edge of the back of the skeleton layer (2), the surface layer (1) and the skeleton layer (2) are bonded together by injection molding, the surface layer (1) adopts thermoplastic elastomer material, the skeleton layer (2) adopts polypropylene material or polycarbonate material, the thermoplastic elastomer material and the polypropylene material or the polycarbonate material have bonding property, and the thickness of the surface layer (1) is not less than 3 mm.

2. A new soft interior trim according to claim 1, characterized by, The surface layer (1) includes the foamed layer (3) and the dense layer (4), the dense layer (4) is wrapped on the outer surface of the foamed layer (3), and the thickness of the dense layer (4) is less than the thickness of the foamed layer (3), the skeleton layer (2) includes the back structure (5) and the plane layer (6), and the plane layer (6) is bonded with the surface layer (1).

Images