1. The automotive interior board is characterized by comprising a framework layer (1) made of a light-transmitting material and a soft touch layer (2) which is attached to the outer side of the framework layer (1) and made of a light-tight foaming material, wherein the framework layer (1) and the soft touch layer (2) are formed through a double-material injection molding process, a plurality of light through holes (21) which penetrate through the soft touch layer (2) are formed, a plurality of light transmitting portions (11) which are convexly arranged and a plurality of light intensifying holes (12) which are concavely arranged are formed in the framework layer (1), the light transmitting portions (11) are embedded into the corresponding light through holes (21), the light transmitting portions (11) block one ends of the corresponding light intensifying holes (12), and the other ends of the light intensifying holes (12) penetrate through the framework layer (1).

2. The automotive interior panel according to claim 1, wherein the aperture of the one end of the lightening hole (12) close to the light transmitting portion (11) is smaller than the aperture of the other end of the lightening hole (12), and the aperture of the lightening hole (12) gradually increases along the direction from the one end of the lightening hole (12) to the other end.

3. The interior panel for a vehicle according to claim 1, wherein one end of the light-increasing hole (12) extends to the inside of the light-transmitting portion (11).

4. The automotive interior panel according to claim 3, characterized in that the thickness of the side wall of the light-transmitting portion (11) is between 0.3 and 1 mm.

5. The automotive interior panel according to claim 1, 2, 3 or 4, wherein the soft contact layer (2) has a recessed groove (22), the light-transmitting hole (21) is located at the bottom of the groove (22), the light-transmitting portion (11) is located in the groove (22) through the corresponding light-transmitting hole (21), and the included angle between the light-transmitting portion (11) and the groove wall of the groove (22) is not less than 90 °.

6. The automotive interior panel according to claim 1, 2, 3 or 4, characterized in that the soft contact layer (2) is made of a modified polyester type thermoplastic elastomer material, and the thickness of the soft contact layer (2) is between 1 and 5 mm.

7. The automotive interior panel according to claim 1 or 2 or 3 or 4, characterized in that the carcass layer (1) is made of PC material or ABS material, the thickness of the carcass layer (1) being between 1.8-3 mm.

8. The automotive interior panel according to claim 1, 2, 3 or 4, wherein the light-passing hole (21) is adapted to the shape and size of the light-passing portion (11), and the outer side wall of the light-passing portion (11) is in clearance fit with the inner side wall of the light-passing hole (21).

9. The automotive interior panel according to claim 1, 2, 3 or 4, characterized in that the light-transmitting portion (11) has an elongated shape, a cylindrical shape, a rectangular parallelepiped shape or a square shape.

Background

Along with the development of society, people's standard of living's improvement, the car more and more becomes the important vehicle of people's trip, and the aesthetic feeling and the feel of automotive interior more and more become the main points that people cared about, provide different light through setting up soft sense of touch epidermis and atmosphere lamp with the suture to promote the aesthetic feeling and the feel of automotive interior, be the method that people commonly used.

The existing soft touch processing technologies commonly used for automotive interior trim panel products include coating, female die suction coating, male die suction coating, slush molding and the like, for example, chinese patent literature discloses a manufacturing process of an automotive door interior trim panel [ application number: 201310030904.4, respectively; application publication No.: CN103085283A ], which comprises the following steps of sequentially molding a thermoplastic polyolefin skin male die to obtain an interior trim panel skin and an injection molding interior trim panel framework; foaming and bonding the surface skin and the framework; milling the foaming piece with the surface adhered to the framework integrally; the thermoplastic polyolefin skin male die molding is to heat and soften a thermoplastic polyolefin coiled material and then send the thermoplastic polyolefin coiled material into vacuum molding equipment for male die vacuum molding, the skin and framework foaming bonding is to pour a polyurethane foaming material into the inner side of the skin of the interior trim panel and then bond the polyurethane foaming material with the framework, and the milling is to mill the technological edge of a foaming piece by an automatic milling robot.

According to the processing mode of the interior trimming panel, the framework needs to be heated and softened and sprayed with glue before an upper male die is sucked and coated with a die, foaming agent is added between the sheet skin and the framework to carry out vacuum sucking, coating, bonding and forming, and the skin and the framework are bonded in a vacuum compounding process. According to the processing mode of the interior trimming panel, the forming process of the interior trimming panel is complex, and after the interior trimming panel is processed and formed, the light transmittance is insufficient, so that the formed pattern is not clear enough; meanwhile, the processing mode of the interior trimming panel needs to spray glue, so that the problem of large peculiar smell of the interior trimming panel can be caused.

Disclosure of Invention

The invention aims to provide an automobile interior trim panel aiming at the problems in the prior art, and solves the technical problems of how to conveniently process the interior trim panel, and meanwhile, the light transmittance of the interior trim panel is improved, and the definition of patterns is improved.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an automotive interior board, includes the skeleton layer of being made by the printing opacity material and the laminating is at the soft touch layer of being made by the foaming material of opaque outside the skeleton layer, skeleton layer and soft touch layer are through two material injection molding process shaping, the logical unthreaded hole that has a plurality of to run through on the soft touch layer, the light-passing portion that has a plurality of protrusion setting and the accent unthreaded hole that a plurality of is recessed to be set up have on the skeleton layer, the light-passing portion imbeds in the logical unthreaded hole that corresponds just the one end of the corresponding accent unthreaded hole of light-passing portion shutoff, the other end in accent unthreaded hole runs through the skeleton layer.

The interior trimming panel is formed by injection molding through the conventional double-material injection molding machine, the framework layer is subjected to injection molding, the soft contact layer is then injection molded on the framework layer, the interior trimming panel is formed in one step through the double-material injection molding process, only the injection molding process is adopted, the labor input is less, the period is short, the production efficiency is high, the interior trimming panel is convenient to process, glue, PVC powder and the like are not required to be used, and the interior trimming panel has no peculiar smell. The framework layer is made of a light-transmitting material, the framework layer has good light transmittance, the light-transmitting portions on the framework layer are embedded into the light-transmitting holes of the soft touch layer, namely the light-transmitting portions are exposed and not shielded by the soft touch layer, light rays of a lamp arranged on the back of the framework layer are directly reflected on the light-transmitting portions, the light transmittance of the interior trim panel is high, and the definition of patterns, LOGO and the like on the light-transmitting portions is high. The light rays can directly enter the light enhancement holes to act on the light transmission part due to the arrangement of the light enhancement holes, the light rays do not need to be refracted by the framework layer, and the like, so that the light transmittance of the interior trim panel is further improved, and the pattern definition on the light transmission part is high; meanwhile, due to the arrangement of the brightening holes, the problem of contraction marks caused by uneven thickness of the light transmission part during injection molding is solved, and the flatness of the appearance of the light transmission part is improved, so that the light transmittance of the interior trim panel is improved, and the definition of patterns is improved.

In the automotive interior panel, the aperture of one end of the light-increasing hole close to the light-transmitting portion is smaller than the aperture of the other end of the light-increasing hole, and the aperture of the light-increasing hole gradually increases along the direction from one end of the light-increasing hole to the other end. The structure enables the light increasing holes to have the function of condensing light, so that light rays of the lamp can better enter the light increasing holes to act on the light transmission parts, the light transmittance is further improved, and the pattern definition on the light transmission parts is high.

In the above automotive interior panel, one end of the light-increasing hole extends to the inside of the light-transmitting portion. The structure enables light rays to act on the light transmission part more closely, further improves light transmittance and enables patterns on the light transmission part to be high in definition.

In the above automotive interior panel, the thickness of the side wall of the light-transmitting portion is 0.3 to 1 mm. During injection molding, local thin-wall transition is needed at the position, so that the joint of the soft contact layer and the framework layer is not easy to damage, and the joint is firmer.

In foretell automotive interior board, the recess that sets up is recessed to have on the soft touch layer, it is located the tank bottom of recess to lead to the unthreaded hole, the printing opacity portion passes corresponding logical unthreaded hole and is located the recess, the contained angle between printing opacity portion and the recess cell wall is no less than 90. The structure improves the glue sealing effect of the soft contact layer and the framework layer at the light transmission part, so that the injection molding effect of the soft contact layer and the framework layer at the light transmission part is good.

In the automotive interior panel, the soft contact layer is made of a modified polyester type thermoplastic elastomer material, and the thickness of the soft contact layer is 1-5 mm. The modified polyester type thermoplastic elastomer material realizes self-foaming soft touch perception through chemical foaming or physical foaming, the thickness of a soft touch layer is 1-5mm from non-soft-touch foaming to soft-touch chemical or physical foaming, and the touch hardness of the soft touch layer can be adjusted by adjusting the size of foaming pores and the density.

In the automotive interior panel, the skeleton layer is made of a PC material or an ABS material, and the thickness of the skeleton layer is between 1.8mm and 3 mm. The PC material is polycarbonate, the ABS material is acrylonitrile-butadiene-styrene copolymer, polar materials such as ABS or PC and the like have excellent light transmission performance, the light transmittance is improved, and the definition of patterns is improved.

In the automotive interior panel, the light-transmitting hole is matched with the light-transmitting part in shape and size, and the outer side wall of the light-transmitting part is in clearance fit with the inner side wall of the light-transmitting hole. The problem of light leak is prevented from appearing, improves the fineness of pattern.

In the above-described automotive interior panel, the light-transmitting portion has an elongated shape, a cylindrical shape, a rectangular parallelepiped shape, or a square shape. The shape of the light transmission part can be set according to actual needs, and the pattern on the light transmission part can also be set according to actual conditions.

Compared with the prior art, the automotive interior board provided by the invention has the following advantages:

1. the interior trimming panel is formed in one step through a double-material injection molding process, the process is simple, the production efficiency is high, the production period is short, the input labor is less, glue spraying and PVC powder using are not needed, and the peculiar smell of the interior trimming panel is less.

2. The interior trimming panel takes ABS or PC materials with high light transmittance as a framework layer, and the light-transmitting part on the framework passes through the light-transmitting hole and is exposed outside the soft contact layer, so that the light transmittance is improved, and the definition of patterns on the light-transmitting part is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the interior panel.

Fig. 2 is a front view of the interior panel.

Fig. 3 is a partial view in section taken along the line a-a of fig. 2 of the present interior panel.

Fig. 4 is a sectional view of the interior panel taken along line B-B of fig. 2.

Fig. 5 is a schematic structural view of the translucent portion of the interior panel.

Fig. 6 is a schematic structural view of the inner plaque brightening holes.

Fig. 7 is a schematic structural view of the light through hole of the interior trim panel.

In the figure, 1, a skeleton layer; 11. a light-transmitting portion; 12. a polishing hole; 2. a soft-touch layer; 21. a light through hole; 22. and (4) a groove.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the automotive interior panel comprises a framework layer 1 and a soft touch layer 2, wherein the framework layer 1 and the soft touch layer 2 are formed through a double-material injection molding process, and the soft touch layer 2 is attached to the outside of the framework layer 1.

The skeleton layer 1 is made of a light-transmitting material, the soft contact layer 2 is made of a light-tight foaming material, in the embodiment, the skeleton layer 1 is made of a PC material, the thickness of the skeleton layer 1 is 2mm, the soft contact layer 2 is made of a modified polyester type thermoplastic elastomer material, the thickness of the soft contact layer 2 is 3mm, in actual production, the skeleton layer 1 is made of an ABS material, the thickness of the skeleton layer 1 can be 1.8mm or 3mm, and the thickness of the soft contact layer 2 is between 1mm or 5 mm.

In this embodiment, the soft contact layer 2 has nine light passing holes 21 therethrough, the skeleton layer 1 has nine light passing holes 11 protruding therethrough and nine light intensifying holes 12 recessed therethrough, and the light passing holes 21, the light passing holes 11, and the light intensifying holes 12 are disposed in one-to-one correspondence, as shown in fig. 5 and 7, the light passing holes 11 are long, the light passing holes 21 and the light passing holes 11 are adapted in shape and size, the outer side walls of the light passing holes 11 are in clearance fit with the inner side walls of the light passing holes 21, in actual production, the number of the light passing holes 21, the light passing holes 11, and the intensifying holes 12 is seven or thirteen, and the light passing holes 11 may be cylindrical, rectangular, or square.

As shown in fig. 3, 4, and 6, the light transmitting portions 11 are fitted into the corresponding light transmitting holes 21, the light transmitting portions 11 block one ends of the corresponding light intensifying holes 12, the other ends of the light intensifying holes 12 penetrate the skeleton layer 1, one ends of the light intensifying holes 12 extend into the light transmitting portions 11, the diameters of the light intensifying holes 12 near one ends of the light transmitting portions 11 are smaller than the diameters of the other ends of the light intensifying holes 12, and the diameters of the light intensifying holes 12 gradually increase in a direction from one end of the light intensifying holes 12 to the other end. In this embodiment, the thickness of the side wall of the light transmitting portion 11 is 0.6mm, and in actual production, the thickness of the side wall of the light transmitting portion 11 may be 0.3mm or 1 mm.

The soft contact layer 2 has a recessed groove 22, the light transmission hole 21 is located at the bottom of the recessed groove 22, and the light transmission part 11 passes through the corresponding light transmission hole 21 and is located in the recessed groove 22.

During processing, a double-material injection molding machine is used for firstly performing injection molding on the framework layer 1, then the soft touch layer 2 is formed on the framework layer 1 through injection molding, the soft touch layer 2 is made to foam automatically, and the processing is completed after trimming to form the interior trim panel. When the lamp is used, the framework layer 1 is installed towards the inner soft contact layer 2, light rays of the lamp are irradiated on the framework layer 1, partial light rays are irradiated into the light transmission part 11 through the light intensifying hole 12, the light transmission part 11 is lightened, patterns and the like are formed through the light transmission part 11, and dynamic pattern display can also be realized by adding a screen on the framework layer side.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the skeleton layer 1, the light-transmitting portion 11, the light-intensifying hole 12, the soft contact layer 2, the light-transmitting hole 21, the groove 22, and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.