Interior trim panel and manufacturing method and manufacturing equipment thereof

Abstract

The invention provides an interior panel and a manufacturing method and manufacturing equipment thereof. The manufacturing method comprises the following steps: at a panel forming station, clamping the surface skin of the interior panel at a first peripheral position; at the panel forming station, the base body part of the interior panel and the skin are formed through a one-step method; at the panel forming station, the surface skin of the interior panel is clamped at the second peripheral position; at the panel forming station, the part, between the first peripheral position and the second peripheral position, of the skin is punched, a panel forming mold is opened, and an edge covering area is obtained; and at the panel forming station, the edge covering area of the skin is bent and covered to the base body part.

Description

Technical Field

[0001] This application relates to an interior trim panel member, a manufacturing method thereof, and a manufacturing apparatus therefor. Background Art

[0002] An interior trim panel member generally includes a panel base portion and a panel surface portion that provides the surface (i.e., the visible surface) of the interior trim panel. In current interior trim panel manufacturing processes, a process of molding the panel base portion and the panel surface portion can be adopted, for example, molding both of them by one-shot injection molding.

[0003] However, after one-shot injection molding, edge wrapping processing generally still needs to be performed. In existing solutions, generally, after the injection molded part is taken out of the injection molding machine, it is placed on a dedicated edge wrapping device to perform the edge wrapping process.

[0004] However, this manufacturing process can be further simplified to reduce the manufacturing cost. Summary of the Invention

[0005] An object of the present invention is to provide a manufacturing method for an interior trim panel member.

[0006] An object of the present invention is to provide a manufacturing apparatus for an interior trim panel member.

[0007] An object of the present invention is to provide an interior trim panel member.

[0008] In a first aspect, the present application provides a manufacturing method for an interior trim panel member, including:

[0009] At a panel forming station, the skin of the interior trim panel member is clamped at a first peripheral position;

[0010] At the panel forming station, the base portion and the skin of the interior trim panel member are formed by one-shot panel forming;

[0011] At the panel forming station, the skin of the interior trim panel is clamped at a second peripheral position;

[0012] At the panel forming station, the portion of the skin between the first peripheral position and the second peripheral position is punched, and the mold for panel forming is opened to obtain a wrapped edge area;

[0013] At the panel forming station, the wrapped edge area of the skin is bent and wrapped around the base portion.

[0014] In one or more embodiments of the manufacturing method, after obtaining the wrapped edge area and before the wrapped edge area is bent and wrapped, the mold for panel forming is closed to heat the wrapped edge area.

[0015] In one or more embodiments of the manufacturing method, a heated punching die is used to punch the portion of the skin between the first peripheral position and the second peripheral position to obtain a hemming area.

[0016] In one or more embodiments of the manufacturing method, the distance between the second peripheral position and the first peripheral position is 20 mm - 25 mm, and the distance between the punching position of the skin and the first peripheral position is 10 mm - 15 mm.

[0017] In one or more embodiments of the manufacturing method, the skin is clamped at the first peripheral position or the second peripheral position by a clamping mechanism driven by a servo motor.

[0018] In one or more embodiments of the manufacturing method, the hemming area of the skin is bent and hemmed to the base portion by the movement of a hemming slider.

[0019] In a second aspect, the present application provides a manufacturing device for an interior trim panel member for use in the manufacturing method as described in the first aspect, comprising:

[0020] A panel forming station provided with:

[0021] A one-step panel forming die including an upper die and a lower die, which are opened and closed by approaching or separating from each other;

[0022] A clamping mechanism for clamping the skin at the first peripheral position or the second peripheral position;

[0023] A punching mechanism for punching the skin;

[0024] A hemming mechanism for bending and hemming the hemming area of the skin to the base portion.

[0025] In one or more embodiments of the manufacturing device, it further includes a heating assembly for heating the hemming area.

[0026] In a third aspect, the present application provides an interior trim panel member obtained by the manufacturing method as described in the first aspect.

[0027] In one or more embodiments of the interior trim panel member, the material of the base portion is fiber-reinforced plastic.

[0028] In the technical solutions described above, hemming is achieved at the panel forming station during the processing of the interior trim panel member, and the hemming function is integrated in the injection molding equipment. There is no need to transfer the injection molded part from the injection molding machine to a dedicated hemming device for hemming after injection molding, which simplifies the processing technology of the interior trim panel member and reduces the processing cost of the interior trim panel member. Description of the Drawings

[0029] The above - mentioned and other features, properties and advantages of the present invention will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are only examples and are not drawn under the condition of equal proportion, and should not be used to limit the actual scope of protection required by the present invention, where:

[0030] Figure 1 It is a schematic flow chart of a manufacturing method for an interior trim panel member in an embodiment.

[0031] Figure 2 It is a schematic structural diagram of a manufacturing device for an interior trim panel member in an embodiment.

[0032] Reference numerals:

[0033] 100 - Interior trim panel member manufacturing device

[0034] 11 - Skin

[0035] 111 - First peripheral position

[0036] 112 - Second peripheral position

[0037] 113 - Edge - wrapping area

[0038] 114 - Punching position

[0039] 12 - Substrate part

[0040] 101 - Panel forming station

[0041] 1 - Upper die

[0042] 2 - Lower die

[0043] 3 - Clamping mechanism

[0044] 4 - Punching mechanism

[0045] 5 - Edge - wrapping mechanism. Detailed implementation manners

[0046] Hereinafter, embodiments of the technical solutions of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0048] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically and clearly defined.

[0049] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0050] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.

[0051] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0052] It can be understood that the following uses a flowchart to illustrate the operations performed according to the manufacturing method of the interior trim panel. It should be understood that, according to the actual situation, the operations before or below do not necessarily need to be precisely executed in sequence. Other operations can also be added to these processes, or one or several operations can be removed from these processes.

[0053] ReferenceFigure 1 and Figure 2 As shown, in some embodiments, the method for manufacturing an interior trim panel member includes:

[0054] Step S1: At the panel forming station 101, the skin 11 of the interior trim panel member is clamped at the first peripheral position 111.

[0055] Step S2: At the panel forming station 101, the base portion 12 of the interior trim panel member and the skin 11 are formed by one-shot panel forming.

[0056] Step S3: At the panel forming station 101, the skin 11 of the interior trim panel is clamped at the second peripheral position 112.

[0057] Step S4: At the panel forming station 101, the portion of the punched skin 11 between the first peripheral position 111 and the second peripheral position 112 is cut, and the panel forming mold is opened to obtain the edge wrapping area 113.

[0058] Step S5: At the panel forming station 101, the edge wrapping area 113 of the skin 11 is bent and wrapped around the base portion 12.

[0059] Here, the panel forming station 101 refers to the position in the injection molding machine where the base portion 12 and the skin 11 of the interior trim panel member are injection molded by one-shot. And steps S3 to S5 are still carried out at the panel forming station 101, that is, after obtaining the injection molded part, the panel formed part remains at the panel forming station 101 without being removed, and the edge wrapping process continues at the panel forming station 101.

[0060] The meaning of the panel forming mold being opened is similar to that in the field of injection molding, that is, the mold being closed means clamping the mold, for example, the upper and lower molds are closed, and the mold being opened, for example, the upper mold moves upward to open the mold.

[0061] Preferably, between steps S4 and S5, that is, after obtaining the edge wrapping area 113 and before the edge wrapping area 113 is bent and wrapped, in some embodiments, the injection molding mold is closed to heat the edge wrapping area 113. The edge wrapping area 113 of the injection molded skin 11 can be appropriately softened to make it easy to be punched. However, it can be understood that after one-shot injection molding, the skin 11 itself also has a certain amount of residual heat. If the corresponding softening requirements can be achieved through the residual heat, there is no need to further close the mold for heating.

[0062] In addition, in some embodiments, a heated punching die can be used to punch the portion of the skin 11 between the first peripheral position 111 and the second peripheral position 112 to obtain the edge wrapping area 113. The beneficial effect of using a hot punching die is that the punching effect is better, especially suitable for punching in a compact space near the panel forming operation.

[0063] Preferably, in steps S1 and S4, the distance between the second peripheral position 112 and the first peripheral position 111 is 20 mm - 25 mm, and the distance between the punching position 114 of the punched skin 11 and the first peripheral position 111 is 10 mm - 15 mm. The inventor found that this can ensure the clamping and fixing effect and sufficient edge wrapping.

[0064] Preferably, in steps S1 and S4, the skin 11 is clamped at the first peripheral position 111 or the second peripheral position 112 by a clamping mechanism driven by a servo motor. This can ensure higher processing quality. The principle is that the inventor found that due to the influence of impact and thermal expansion, fine adjustment of the clamping position is required to reach the predetermined first or second peripheral position. And the inventor found that the effect of using a servo motor is better, while using other common driving mechanisms, such as cylinders, hydraulic cylinders, etc. for driving, cannot achieve the fine adjustment effect.

[0065] In step S5, the specific steps of bending the edge wrapping can be to bend the edge wrapping to the base portion through the movement of the edge wrapping slider. The structure of using a slider for edge wrapping and bending can specifically be to drive a profiling edge wrapping slider to simulate the manual edge wrapping action to complete the movement in both horizontal and vertical directions, thereby completing the bending of the edge wrapping area of the skin 11.

[0066] Refer to Figure 2 As shown, the present application also provides a manufacturing device for the interior panel 10 for the manufacturing method introduced above. The manufacturing device 100 includes a panel forming station 101, provided with: a one-step injection molding die, including an upper die 1 and a lower die 2, which realize the opening and closing of the molding die by approaching or separating from each other; a clamping mechanism 3 for clamping the skin 11 at the first peripheral position 111 or the second peripheral position 112; a punching mechanism 4 for punching the skin; and an edge wrapping mechanism 5 for bending the edge wrapping area 113 of the skin 11 to the base portion 12. It can be understood that Figure 2 the clamping mechanism 3, the punching mechanism 4, and the edge wrapping mechanism 5 in

[0067] are all located on the left side of the die, but this is only for illustration, and the corresponding clamping mechanism 3, punching mechanism 4, and edge wrapping mechanism 5 can be arranged at multiple positions around the die.

[0068] The beneficial effects of the above manufacturing equipment 100 include, but are not limited to, integrating the edge wrapping function in the panel forming equipment, so that there is no need to transfer the injection molded part from the injection molding machine to a dedicated edge wrapping equipment for edge wrapping after injection molding, nor is it necessary to purchase additional edge wrapping equipment, which simplifies the processing technology of the interior panel parts and reduces the processing cost of the interior panel parts.

[0069] As introduced above, the present application also provides an interior panel part, which is manufactured by the manufacturing method introduced in the above embodiments.

[0070] The interior panel part can be an automotive interior part such as a door side panel, a roof lining, a dashboard or an instrument panel, a center console, etc. The form of the lining part is diverse and has a basically flat contour or a three-dimensional contour, as specified by the relevant specific design, with raised areas and recessed areas, and also has one or more openings and recesses for decoration and operating controls as required.

[0071] The base part 12 of the panel provides a supporting effect on the skin 1. Therefore, the panel base part 2 generally has a certain structural strength. For example, it can be a composite material part. The matrix of the composite material is the first material, and the reinforcing material is the second material. The type of the first material can be common polypropylene (PP) plastic. The type of the second material can be natural fiber or synthetic fiber to form a composite material of fiber-reinforced plastic, such as natural fiber-reinforced PP plastic (NFPP), glass fiber-reinforced PP plastic (GFPP), a composite material rCF NFPP composed of 40% natural fiber, 50% polypropylene and 10% recycled carbon fiber, and also a composite material of natural hemp fiber combined with PP, etc. In addition, the material of the matrix is not limited to PP plastic. For example, it can also be acrylonitrile-butadiene-styrene copolymer (ABS plastic), PC / ABS alloy (ABS engineering plastic), etc.

[0072] The types of natural fibers can include wood fiber, kenaf, jute, flax, ramie, rattan, soybean, okra (coffee okra), banana plants, bamboo, coconut, coconut husk fiber, cotton fabric, curaua fiber (pineapple leaf fiber), abaca (Manila hemp), pine, pineapple, raffia palm leaf (raffia farinifera) and / or sisal.

[0073] Synthetic fibers include, for example, carbon fibers, polyester fibers, acrylic fibers, aramid fibers, Twaron fibers, Kevlar fibers, Technoral fibers, Vinalon fibers, Zylon fibers, and / or polypropylene fibers, and so on.

[0074] The material of the skin 11 can be adjusted as needed. For example, common materials can be polyethylene plastic (PC), polyvinyl chloride plastic (PVC), thermoplastic elastomer (TPE), thermoplastic polyolefin (TPO), polyethylene terephthalate (PET) plastic, and so on, but it is not limited thereto.

[0075] The beneficial effects of the manufacturing method introduced in the above embodiments include, but are not limited to, achieving edge wrapping at the panel forming station during the processing of interior trim panel parts, integrating the edge wrapping function in the panel forming equipment, eliminating the need to transfer the injection molded parts from the injection molding machine to a dedicated edge wrapping equipment for edge wrapping after injection molding, and also eliminating the need to purchase additional edge wrapping equipment, simplifying the processing technology of interior trim panel parts and reducing the processing cost of interior trim panel parts.

[0076] Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change, and decoration made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A manufacturing method for an interior panel member, characterized in that, Including: At the panel forming station (101), the skin (11) of the interior panel part is clamped at the first peripheral position (111); At the panel forming station (101), the base part (12) of the interior panel part and the skin (11) are formed by one-step panel forming; At the panel forming station (101), the skin (11) of the interior panel is clamped at the second peripheral position (112); At the panel forming station (101), the part of the skin (11) between the first peripheral position (111) and the second peripheral position (112) is punched, and the panel forming die is opened to obtain a hemming area (113); At the panel forming station (101), the hemming area (113) of the skin (11) is bent and hemmed to the base part (12).

2. The manufacturing method according to claim 1, characterized in that, After obtaining the hemming area (113) and before the hemming area (113) is bent and hemmed, the panel forming die is closed to heat the hemming area (113).

3. The manufacturing method according to claim 1, characterized in that, The part of the skin (11) between the first peripheral position (111) and the second peripheral position (112) is punched by a heated punching knife to obtain a hemming area (113).

4. The manufacturing method according to claim 1, characterized in that, The distance between the second peripheral position (112) and the first peripheral position (111) is 20 mm - 25 mm, and the distance between the punching position (114) of the punched skin (11) and the first peripheral position (111) is 10 mm - 15 mm.

5. The manufacturing method according to claim 1, characterized in that, The skin (11) is clamped at the first peripheral position (111) or the second peripheral position (112) by a clamping mechanism driven by a servo motor.

6. The manufacturing method according to claim 1, characterized in that, The hemming area (113) of the skin (11) is bent and hemmed to the base part (12) by the movement of a hemming slider.

7. A manufacturing device (100) for an interior panel member, characterized in that, For the manufacturing method according to any one of claims 1 - 6, including: The panel forming station (101) is provided with: A one-step panel forming die, including an upper die (1) and a lower die (2), which are opened and closed by approaching or separating from each other; A clamping mechanism (3) for clamping the skin (11) at the first peripheral position (111) or the second peripheral position (112); A punching mechanism (4) for punching the skin; A hemming mechanism (5) for bending and hemming the hemming area (113) of the skin (11) to the base part (12).

8. The manufacturing device according to claim 7, characterized in that, It further includes a heating component for heating the hemming area (113).

9. An interior panel member, characterized in that, Obtained by the manufacturing method according to any one of claims 1 - 6.

10. The interior panel member according to claim 9, characterized in that, The material of the base part (12) is fiber-reinforced plastic.

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