Wood-like automotive interior trim part and production method thereof
By adopting simplified layer structure design and injection molding process on imitation wood car interior parts, the problems of high production costs and difficult to control the precision of finished products in the prior art are solved, and lower cost and higher efficiency are achieved. Improves the environmental protection of the product.
Patent Information
- Application Number
- CN202411345556.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-01-03
AI Technical Summary
The layer structure design of existing imitation wood car interior parts is not reasonable enough, resulting in high production costs, difficult to control the precision of the finished product, and great impact of thermal expansion and contraction, as well as high material consumption and defective yield.
The design is adopted to set the primer layer, the first protective layer, the wood grain layer, the translucent paint layer and the second protective layer on the surface of the interior part, and is injection molded by PVC raw materials and wood powder, combined with spraying and drying Baking process simplifies the process flow and improves product quality.
It reduces the cost of raw materials, improves the accuracy of finished products, reduces the impact of thermal expansion and contraction, improves production efficiency, and makes some materials degradable and environmentally friendly.
Smart Images
Figure CN119239166A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile interior decoration, in particular to an imitation wood automobile interior decoration part and a production method thereof. Background Art
[0002] With the development of automotive interior parts, people are increasingly pursuing the quality of returning to nature, which makes wood grain structures more and more popular. However, due to the heavy weight of solid wood, poor processability, high wood consumption, environmental pollution and high cost, the demand for alternative imitation wood materials is growing.
[0003] Chinese patent (CN110734602A) discloses a low-temperature resistant and blister-forming imitation wood TPE composite sheet and its manufacturing method that can be used for the manufacture of car mats; Chinese patent (CN 102941714 A) discloses a composite sheet; Chinese patent (CN1 15895002A) discloses a method for manufacturing an imitation wood TPE composite sheet. The unreasonable layer structure design in the above patent application technology results in the following shortcomings in the processing and manufacturing process: high requirements for raw materials, high production costs, and large loss of raw materials. In addition, the finished product is greatly affected by thermal expansion and contraction, and the precision of the finished product is difficult to control. Summary of the invention
[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to provide a wood-like automobile interior decoration part and a production method thereof with a simpler and more reasonable layer structure design, which can reduce the cost of raw materials and better control the precision of the finished product.
[0005] To achieve the above-mentioned purpose, the present invention provides a wood-like automobile interior decoration part, including an interior decoration part substrate; characterized in that it also includes a primer layer, a first protective layer, a wood grain layer, a translucent paint layer and a second protective layer stacked in sequence from bottom to top on the surface of the interior decoration part substrate; and the interior decoration part substrate is obtained by injection molding using raw materials and wood powder.
[0006] Thus, in the above-mentioned imitation wood automobile interior parts, by sequentially arranging the primer layer, the first protective layer, the wood grain layer, the translucent color paint layer and the second protective layer on the surface of the interior parts base, such a layer structure design is simpler and more reasonable, which can be more convenient for processing and manufacturing, and can also protect the wood grain layer to improve the quality of the product. Secondly, by using the raw materials and wood powder to obtain the interior parts base through injection molding, it has the following advantages: 1. Compared with pure wood interior parts, it can improve production efficiency and reduce the defective product rate; 2. It is less affected by thermal expansion and contraction, and the product precision is easier to control; 3. Some materials are degradable materials, which are more environmentally friendly.
[0007] As an optimization, the raw material is PVC raw material.
[0008] In this way, the raw material is PVC, which is more conducive to injection molding and can be better mixed with wood powder.
[0009] As an optimization, a paint layer is provided on the outer surface of the first protective layer, and the paint attached to the outer layer of the paint layer is polished and peeled off according to the texture to obtain the wood grain layer.
[0010] In this way, by arranging a colored paint layer on the outer surface of the first protective layer, and grinding and peeling off the colored paint attached to the outer layer of the colored paint layer according to the texture to obtain the wood grain layer, the wood grain layer can be obtained more conveniently and the processing is more convenient.
[0011] As an optimization, the primer layer, the first protective layer, the color paint layer, the semi-transparent color paint layer and the second protective layer are all obtained by a processing method of spraying and then baking.
[0012] In this way, the primer layer, the first protective layer, the color paint layer, the translucent color paint layer and the second protective layer are all obtained by a processing method of spraying and then baking, which can be processed more conveniently and the process is simpler.
[0013] As an optimization, the first protective layer is transparent and forms a transparent layer.
[0014] In this way, the first protective layer is transparently arranged to form a transparent layer, and the design is more reasonable, so that the appearance quality of the wood grain layer is better.
[0015] The invention also discloses a production method of a wood-like automobile interior decoration part, comprising the following steps: a. designing wood grain according to automobile interior decoration parts and opening a mold to obtain an automobile interior decoration part injection mold; b. adopting PVC raw material and wood powder to prepare injection molding raw material, and adopting the automobile interior decoration part injection mold to obtain an interior decoration part substrate; c. spraying and forming a primer layer on the surface of the interior decoration part substrate, and baking it; d. spraying and forming a transparent first protective layer on the surface of the primer layer, and baking it; e. spraying and forming a color paint layer on the surface of the first protective layer, and baking it, and grinding and peeling the color paint attached to the outer layer of the color paint layer according to the texture to obtain a wood grain layer; f. spraying a translucent color paint layer on the surface of the wood grain layer, and baking it; g. spraying a second protective layer on the surface of the translucent color paint layer; and completing the processing.
[0016] In this way, the above-mentioned method for producing imitation wood automobile interior parts is to design wood grain and open a mold to obtain an automobile interior part injection mold, use PVC raw material and wood powder to mix to obtain injection molding raw material, and use automobile interior part injection mold to injection mold to obtain the interior part base; then spray and form a primer layer on the surface of the interior part base, and bake it; then spray and form a transparent first protective layer on the surface of the primer layer, and bake it; and spray and form a paint layer on the surface of the first protective layer, and bake it, and grind and peel the paint attached to the outer layer of the paint layer according to the texture to obtain a wood grain layer; finally, spray a translucent paint layer on the surface of the wood grain layer, and bake it; and spray a second protective layer on the surface of the translucent paint layer; and complete the processing. The whole process steps are simpler and can be more convenient for processing and manufacturing. In addition, the interior part base is obtained by injection molding using raw materials and wood powder, which can improve production efficiency and reduce the defective product rate; secondly, it is less affected by thermal expansion and contraction, and the precision of the product is easier to control; some materials are degradable materials, which are more environmentally friendly.
[0017] As an optimization, in step b, when preparing the injection molding raw material, the weight proportions of the PVC raw material and the wood powder are 1:1.
[0018] In this way, 50% of the materials are degradable, which is more environmentally friendly. It can also reduce the cost of materials required during production. Secondly, it can also reduce the impact of thermal expansion and contraction.
[0019] In summary, the present invention has a simpler and more reasonable layer structure design, which can reduce the cost of raw materials and better control the precision of finished products; and the entire production process is simpler and more reasonable, which can reduce the cost of materials, better control the thermal expansion and contraction rate, and better control the product precision. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the layer structure of the wood-like automobile interior decoration part in a specific embodiment of the present invention. DETAILED DESCRIPTION
[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as limiting the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0022] like Figure 1As shown, a wood-like automobile interior decoration part includes an interior decoration part substrate 1; and also includes a primer layer 2, a first protective layer 3, a wood grain layer 4, a translucent paint layer 5 and a second protective layer 6 which are stacked on the surface of the interior decoration part substrate from bottom to top; and the interior decoration part substrate is obtained by injection molding using raw materials and wood powder.
[0023] Thus, in the above-mentioned imitation wood automobile interior parts, by sequentially arranging the primer layer, the first protective layer, the wood grain layer, the translucent color paint layer and the second protective layer on the surface of the interior parts base, such a layer structure design is simpler and more reasonable, which can be more convenient for processing and manufacturing, and can also protect the wood grain layer to improve the quality of the product. Secondly, by using the raw materials and wood powder to obtain the interior parts base through injection molding, it has the following advantages: 1. Compared with pure wood interior parts, it can improve production efficiency and reduce the defective product rate; 2. It is less affected by thermal expansion and contraction, and the product precision is easier to control; 3. Some materials are degradable materials, which are more environmentally friendly.
[0024] In this specific implementation manner, the raw material is PVC raw material.
[0025] In this way, the raw material is PVC, which is more conducive to injection molding and can be better mixed with wood powder.
[0026] In this specific embodiment, a color paint layer is provided on the outer surface of the first protective layer, and the color paint attached to the outer layer of the color paint layer is polished and peeled off according to the texture to obtain the wood grain layer.
[0027] In this way, by arranging a colored paint layer on the outer surface of the first protective layer, and grinding and peeling off the colored paint attached to the outer layer of the colored paint layer according to the texture to obtain the wood grain layer, the wood grain layer can be obtained more conveniently and the processing is more convenient.
[0028] In this specific embodiment, the primer layer, the first protective layer, the color paint layer, the semi-transparent color paint layer and the second protective layer are all obtained by a processing method of spraying and then baking.
[0029] In this way, the primer layer, the first protective layer, the color paint layer, the translucent color paint layer and the second protective layer are all obtained by a processing method of spraying and then baking, which can be processed more conveniently and the process is simpler.
[0030] In this specific implementation manner, the first protective layer is transparent and forms a transparent layer.
[0031] In this way, the first protective layer is transparently arranged to form a transparent layer, and the design is more reasonable, so that the appearance quality of the wood grain layer is better.
[0032] The invention also discloses a production method of a wood-like automobile interior decoration part, comprising the following steps: a. designing wood grain according to automobile interior decoration parts and opening a mold to obtain an automobile interior decoration part injection mold; b. adopting PVC raw material and wood powder to prepare injection molding raw material, and adopting the automobile interior decoration part injection mold to obtain an interior decoration part substrate; c. spraying and forming a primer layer on the surface of the interior decoration part substrate, and baking it; d. spraying and forming a transparent first protective layer on the surface of the primer layer, and baking it; e. spraying and forming a color paint layer on the surface of the first protective layer, and baking it, and grinding and peeling the color paint attached to the outer layer of the color paint layer according to the texture to obtain a wood grain layer; f. spraying a translucent color paint layer on the surface of the wood grain layer, and baking it; g. spraying a second protective layer on the surface of the translucent color paint layer; and completing the processing.
[0033] In this way, the above-mentioned method for producing imitation wood automobile interior parts is to design wood grain and open a mold to obtain an automobile interior part injection mold, use PVC raw material and wood powder to mix to obtain injection molding raw material, and use automobile interior part injection mold to injection mold to obtain the interior part base; then spray and form a primer layer on the surface of the interior part base, and bake it; then spray and form a transparent first protective layer on the surface of the primer layer, and bake it; and spray and form a paint layer on the surface of the first protective layer, and bake it, and grind and peel the paint attached to the outer layer of the paint layer according to the texture to obtain a wood grain layer; finally, spray a translucent paint layer on the surface of the wood grain layer, and bake it; and spray a second protective layer on the surface of the translucent paint layer; and complete the processing. The whole process steps are simpler and can be more convenient for processing and manufacturing. In addition, the interior part base is obtained by injection molding using raw materials and wood powder, which can improve production efficiency and reduce the defective product rate; secondly, it is less affected by thermal expansion and contraction, and the precision of the product is easier to control; some materials are degradable materials, which are more environmentally friendly.
[0034] In this specific implementation manner, in step b, when preparing the injection molding raw material, the weight proportion of the PVC raw material and the wood powder is 1:1.
[0035] In this way, 50% of the materials are degradable, which is more environmentally friendly. It can also reduce the cost of materials required during production. Secondly, it can also reduce the impact of thermal expansion and contraction.
[0036] In summary, the present invention has a simpler and more reasonable layer structure design, which can reduce the cost of raw materials and better control the precision of finished products; and the entire production process is simpler and more reasonable, which can reduce the cost of materials, better control the thermal expansion and contraction rate, and better control the product precision.
[0037] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.
Claims
1. A wood-like automobile interior decoration part, comprising an interior decoration part substrate; characterized in that: It also includes a primer layer, a first protective layer, a wood grain layer, a semi-transparent paint layer and a second protective layer which are stacked on the surface of the interior decoration component base from bottom to top; and the interior decoration component base is obtained by injection molding using raw materials and wood powder.
2. The imitation wood automobile interior decoration part according to claim 1, characterized in that: The raw material is PVC raw material.
3. The imitation wood automobile interior decoration part according to claim 1, characterized in that: A color paint layer is arranged on the outer surface of the first protective layer, and the color paint attached to the outer layer of the color paint layer is polished and peeled off according to the texture to obtain the wood grain layer.
4. The imitation wood automobile interior decoration part according to claim 3, characterized in that: The primer layer, the first protective layer, the color paint layer, the semi-transparent color paint layer and the second protective layer are all obtained by a processing method of spraying and then baking.
5. The imitation wood automobile interior decoration part according to claim 1, characterized in that: The first protective layer is transparent and forms a transparent layer.
6. A method for producing wood-like automobile interior decoration parts, characterized in that; The steps include: a. Design wood grain according to automobile interior decoration parts and open molds to obtain automobile interior decoration parts injection molds; b. Use PVC raw materials and wood powder to prepare injection molding raw materials, and use automobile interior decoration parts injection molds to injection mold to obtain interior decoration parts substrates; c. Spray and form a primer layer on the surface of the interior decoration parts substrate, and bake it; d. Spray and form a transparent first protective layer on the surface of the primer layer, and bake it; e. Spray and form a color paint layer on the surface of the first protective layer, and bake it, and grind and peel off the color paint attached to the outer layer of the color paint layer according to the texture to obtain a wood grain layer; f. Spray a translucent color paint layer on the surface of the wood grain layer, and bake it; g. Spray a second protective layer on the surface of the translucent color paint layer; and complete the processing.
7. A method for producing wood-like automobile interior decoration parts, characterized in that: In step b, when preparing the injection molding raw material, the weight proportion of the PVC raw material and the wood powder is 1:1.