Manufacturing method of automotive trim texture real wood

Abstract

According to the technical scheme, the advanced surface mold embossing technology is adopted, through different mold designs, the single concave-convex texture of a natural wood board can be changed, various texture touch effects can be molded, and the personalized requirements of consumers are met. According to the technology, the original texture touch sense of wood can be restored, the appearance of the wood veneer can be changed, the touch sense of the wood veneer can be changed, and better user experience is provided. The surface mold embossing technology is used for replacing the pretreatment process link of real wood, so that the real wood ornaments in different batches do not have obvious concave-convex touch quality difference, the consistency of wood veneer textures produced in batches is more stable, and the requirements of products and customers are more easily met.

Description

Technical Field

[0001] The invention relates to the technical field of automobile interior design and manufacturing, and in particular to a method for manufacturing textured real wood (real wood grain). Background Art

[0002] The car interior is an important part of the car. It not only affects the beauty of the car, but also directly affects the comfort and safety of the driver and passengers. Among them, the design and manufacture of the interior of the car dashboard, center console cover, door panels, ceiling, trunk door and other parts have an important impact on the appearance and performance of the whole vehicle. As consumers' demand for the beauty and personalization of car interiors increases, the design and manufacture of car interiors are also constantly innovating and improving. In traditional car interior design, plastics, metals and other materials are usually used for manufacturing. Although these materials have certain strength and wear resistance, they lack natural texture and warm atmosphere. In order to solve this problem, some car manufacturers have begun to use wood materials for the manufacture of car interiors to improve the overall beauty and comfort of the car.

[0003] Solutions of the prior art: Existing wooden car interiors are mainly realized by pasting wooden veneers on plastic or metal substrates. The advantage of this method is that it can be quickly mass-produced and has low cost. However, since the wooden veneer and the substrate are bonded by glue, the wooden veneer is easy to fall off during use, which affects the service life. In addition, the texture design of existing wooden car interiors is relatively simple, basically using the single concave and convex texture of natural wood boards, lacking in variety, and cannot meet consumers' demand for personalization.

[0004] Problems with existing technologies: There are several main problems in the production process of wooden car interiors: First, the texture design of the wood veneer is single and lacks variety, which cannot meet consumers' demand for personalization; second, during the production process, the texture of the wood veneer is mainly improved by pre-treatment methods such as humidifying the formed veneer and manually brushing the catheter, so that the wood texture is naturally stretched and the texture is clear, so as to highlight the texture of the bumpy touch. The above treatment methods have great instability, for example: if the humidification is too small, the bumpy touch is not obvious; if the humidification is too large, the bumpy touch is too strong, too abrupt, and unnatural. Because of the unstable process, there will be obvious differences in the bumpy touch between real wood trims in different production batches, which can easily fail to meet or exceed product and customer requirements. Third, the bonding between the wood veneer and the substrate is not strong, and there is a certain risk of bulging and delamination. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a method for making a real wood texture for automobile interior decoration. In order to achieve the above purpose, the present invention adopts the following technical scheme: a method for making a real wood texture for automobile interior decoration, comprising the following steps:

[0006] S1: Material preparation and cleaning, select veneer, film, and a piece of non-woven fabric; clean the surface of the selected veneer and other materials in advance to remove dust and impurities on the surface to ensure the quality of subsequent processing;

[0007] S2: Pre-installation: stack the veneer, film, and non-woven fabric in the order of top, middle, and bottom: veneer, film, and non-woven fabric;

[0008] S3: Composite molding, put the pre-assembled three layers on the composite molding equipment to complete the hot pressing composite, the time varies from 1 to 3 minutes. The size after molding depends on the different veneers, and the total thickness is generally 0.5-2mm. Then put the composite veneer into the sanding equipment for sanding treatment of the veneer surface, the transmission speed is 5-25m / minute, and the sanding thickness is generally 0.05-0.2mm;

[0009] S4: Method 1: In the S1 stage, when selecting veneer, select veneer that directly produces a concave-convex texture when planing the wood. This method is to use a planing tool with a concave-convex texture to plan the wood and directly plan out the concave-convex texture veneer; planing the concave-convex texture veneer can only achieve the concave-convex texture in one direction, that is, there is a concave-convex texture along the planing direction, and the concave-convex texture cannot be achieved in the non-planing direction; this method is suitable for situations where the texture requirements are relatively low;

[0010] S4: Method 2, put the composite sanded veneer into the laser engraving tooling, and use the laser engraving technology to change the single concave and convex texture of the natural wood board to create various real wood appearance texture and touch effects; the laser engraving power is 15-300W, and the feed speed is 50-1000mm / s, which can be adjusted according to the different wood hardness and texture size and depth. This method is suitable for general texture requirements and small batch production; S4: Method 3, pretreatment, humidify the composite sanded veneer for pretreatment. Put the pretreated veneer into the embossing mold, and use the mold embossing technology to change the single concave and convex texture of the natural wood board to create various real wood appearance texture and touch effects. The mold embossing time varies from 1 to 3 minutes. This method is suitable for high texture requirements and large-scale production;

[0011] S5: The veneer with concave and convex texture is subjected to forming and punching processing to obtain a veneer inlay with the same appearance as the required product;

[0012] S6: installing the inlay in the cavity of the fixed mold plate of the injection mold, closing the fixed mold plate with the movable mold plate, injecting the molten material into the cavity, and obtaining the injection molded real wood product after cooling;

[0013] S7: The excess parts of the injection-molded real wood product are processed and then the processed injection-molded real wood enters the painting process (including: multiple sanding, painting and baking) to obtain the final product, namely: the car interior texture real wood product.

[0014] Compared with the existing technology, the beneficial effects of the technical solution are as follows: 1. The present invention adopts the method of surface mold embossing, which can change the single concave and convex texture of natural wood boards, shape various texture tactile effects, enhance the sense of space technology, meet consumers' demand for personalized car interiors, and improve the aesthetics and comfort of the whole vehicle. 2. In the wood-veneered car interior of the present invention, the wood veneer and the substrate are combined by surface mold embossing. In the traditional glue bonding method, the physical bite between the wood veneer and the substrate is increased, which is more firm and not easy to fall off, thereby improving the service life of the product. 3. The wood-veneered car interior of the present invention can not only be used in car dashboards, center console covers, door panels, ceilings, trunk doors and other parts, but can also be applied to other parts of the car according to actual needs, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the process of making textured real wood (real wood texture) in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the textured real wood veneer structure in an embodiment of the present invention;

[0017] Figure 3 It is a schematic diagram of an upper template, a veneer and a lower template of an embossing mold in an embodiment of the present invention when they are in a separated state;

[0018] Figure 4 Schematic diagram of the upper template structure of the embossing mold in an embodiment of the present invention, a partial enlarged view of point A, and examples of texture styles;

[0019] Figure 5 It is a schematic diagram of the fixed platen, the veneer and the movable platen of the injection mold in the embodiment of the invention when they are in a separated state;

[0020] Figure 6 This is the textured real wood product in the embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Veneer, 2. Adhesive film, 3. Non-woven fabric, 4. Embossed upper mold, 5. Composite veneer, 6. Embossed lower mold, 7. Injection mold fixed mold, 8. Veneer inlay, 9. Injection mold movable mold, 10. Textured real wood finished product DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 A method for making real wood texture for automobile interior decoration, comprising the following steps:

[0025] S1: Material preparation and cleaning: select a piece of veneer, either technical wood or natural wood; a piece of adhesive tape; a piece of non-woven fabric; clean the surface of the selected veneer and other materials in advance to remove dust and impurities on the surface to ensure the quality of subsequent processing.

[0026] S2: Pre-installation: stack the veneer, film, and non-woven fabric in the order of top, middle, and bottom: veneer 1, film 2, and non-woven fabric 3.

[0027] S3: Composite molding, put the pre-assembled three layers on the composite molding equipment to complete the hot pressing composite, the time varies from 1 to 3 minutes. The size after molding depends on the different veneers, and the total thickness is generally 0.5-2mm. Then put the composite veneer into the sanding equipment for sanding treatment of the veneer surface, the transmission speed is 5-25m / minute, and the sanding thickness is generally 0.05-0.2mm.

[0028] S4: Method 1: In the S1 stage, when selecting veneer, select veneer that directly produces a concave-convex texture when planing the wood. This method is to use a planing tool with a concave-convex texture to plan the wood and directly plan out the concave-convex texture veneer. Planing the concave-convex texture veneer can only achieve the concave-convex texture in one direction, that is, there is a concave-convex texture along the planing direction, and the concave-convex texture cannot be achieved in the non-planing direction. This method is suitable for situations where the texture requirements are relatively low.

[0029] S4: Method 2: Put the composite sanded veneer into the laser engraving tooling, and use the laser engraving technology to change the single concave and convex texture of the natural wood board to create various real wood appearance texture and touch effects. The power of the laser engraving is 15-300W, and the feed speed is 50-1000mm / s. It can be adjusted according to the hardness of different woods and the size and depth of the texture. This method is suitable for general texture requirements and small batch production.

[0030] S4: Method 3, pretreatment, humidifying the composite sanded veneer for pretreatment. Put the pretreated composite veneer 5 into the embossing mold, and place the composite veneer 5 between the upper embossing mold template 4 and the lower embossing mold template 6. Through the mold embossing technology, the single concave and convex texture of the natural wood board is changed to create various real wood appearance texture and touch effects. The mold embossing time varies from 1 to 3 minutes. This method is suitable for high texture requirements and large-scale production.

[0031] Concave and convex texture Figure 4 As shown, there are various texture styles available as needed.

[0032] S5: The veneer with the concave-convex texture is subjected to a forming and punching process to obtain a veneer inlay 8 having the same appearance as the required product.

[0033] S6: Install the inlay in the mold cavity of the injection mold fixed template 7, close the injection mold fixed template 7 and the injection mold movable template 9, inject the molten material into the mold cavity, and after cooling, obtain the injection molded real wood product.

[0034] S7: The excess part of the injection-molded real wood product is processed and then the processed injection-molded real wood enters the painting process (including: multiple sanding, painting and baking) to obtain the final product, namely: the automobile interior texture real wood product 10.

[0035] This technical solution adopts advanced surface mold embossing technology. Through different mold designs, it can change the single concave and convex texture of natural wood boards and create various texture tactile effects to meet consumers' personalized needs. This technology can not only restore the original texture and touch of wood, but also change the appearance of wood veneer and its touch, providing a better user experience. Using surface mold embossing technology to replace the pretreatment process of real wood, there will be no obvious difference in the quality of concave and convex touch between different batches of real wood trims, making the texture consistency of mass-produced veneer more stable and easier to meet product and customer needs.

[0036] Compared with the existing technology, this technical solution mainly solves and improves the following technical problems: 1. The texture design of wood veneer is single and lacks variety, which cannot meet the personalized needs of consumers; 2. There are obvious differences in the quality of the concave and convex touch of real wood trims from different batches or even the same batch, which cannot meet the needs of products and customers. 3. It eliminates the need for pre-painting treatment such as pre-humidifying the veneer surface before painting. 4. The technical problem that the bonding between the wood veneer and the substrate is not strong and is prone to bulging and delamination.

[0037] 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 method for making real wood texture for automobile interior, characterized in that: The following steps are involved: S1: Material preparation and cleaning, selection of veneer, film, and non-woven fabric; Clean the surface of the above selected materials in advance to remove dust and impurities on the surface; S2: Pre-installation: stack the veneer, film, and non-woven fabric in the order of top, middle, and bottom: veneer, film, and non-woven fabric; S3: Composite molding, put the pre-assembled three layers on the composite molding equipment to complete hot pressing and lamination, the time is 1 to 3 minutes, the size after molding depends on the different veneers, and the total thickness is 0.5-2mm; then put the composite veneer into the sanding equipment for sanding treatment of the veneer surface, the transmission speed is 5-25m / min, and the sanding thickness is generally 0.05-0.2mm; S4: In the S1 stage, when selecting veneer, select veneer that directly produces a concave-convex texture when the wood is sliced; when sliced, select a slicer with a concave-convex texture to slice the wood and directly slice out the concave-convex texture veneer; S5: The veneer with concave and convex texture is subjected to forming and punching processing to obtain a veneer inlay with the same appearance as the required product; S6: installing the inlay in the cavity of the fixed mold plate of the injection mold, closing the fixed mold plate with the movable mold plate, injecting the molten material into the cavity, and obtaining the injection molded real wood product after cooling; S7: The excess parts of the injection-molded real wood product are processed and then the processed injection-molded real wood enters the painting process to obtain the final product, namely: the automotive interior texture real wood product.

2. The method for making a textured real wood for automobile interior decoration according to claim 1, characterized in that: Replace step S4 with the following steps: put the composite sanded veneer into the laser engraving tool, and use the laser engraving technology to change the single concave and convex texture of the natural wood board to create various real wood appearance texture and touch effects; the power of the laser engraving is 15-300W, and the feed speed is 50-1000mm / s, which is adjusted according to the different hardness of the wood and the size and depth of the texture.

3. The method for making a textured real wood for automobile interior decoration according to claim 1, characterized in that: Replace step S4 with the following steps: Pretreatment: humidify the composite sanded veneer for pretreatment; put the pretreated veneer into the embossing mold, and use the mold embossing technology to change the single concave and convex texture of the natural wood board to create various real wood appearance, texture and touch effects. The mold embossing time is 1-3 minutes.

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