Modeling structure and molding process of interior trim panel strip and vehicle

Abstract

The invention discloses an interior trim panel molding structure, a molding process and a vehicle, and belongs to the field of molding and manufacturing of vehicle interior trim parts. The interior trim panel molding structure comprises a first framework, the upper surface of the first framework is provided with a step surface and is divided into a first surface and a second surface through the step surface, and the second surface is lower than the first surface; the second framework is connected to the second surface of the first framework, and the second framework and the step surface are arranged at intervals; the at least one insertion strip modeling piece is connected to the second surface of the first framework and is positioned in an area between the step surface of the first framework and the second framework; and the wrapping piece wraps the outer surfaces of the first framework, the insertion strip modeling piece and the second framework, and the outer contour of the wrapping piece is matched with the outer contours of the upper surfaces of the first framework, the insertion strip modeling piece and the second framework. The forming structure is simple, the material cost is low, the forming technology is easy to achieve, and the forming structure can be widely applied to forming and manufacturing of all interior trimming areas of the vehicle.

Description

Technical Field

[0001] The invention relates to the field of vehicle interior molding technology, and in particular to a vehicle interior molding strip molding structure and a molding method. Background Art

[0002] At present, the components of vehicle interior molding are mainly used in seat covers, and are generally formed by molding molding sewing process. Usually, it is necessary to pre-sew the molding (also called trim) with one layer of skin, and then sew the other layer of skin with trim strip for the second time, and finally sew it into a skin cover and then cover it, so as to form the appearance of trim.

[0003] With the popularity of vehicle interior moldings, it is becoming more and more common to use moldings in other interior areas of the car to change the shape of the entire vehicle interior. Since other interior areas (non-seat areas), such as the upper surface area of ​​the vehicle operating panel interior, are in direct sunlight areas, they have high requirements for heat resistance, light resistance, chemical resistance, etc. Traditional moldings need to be specially developed materials to meet performance requirements, which is costly. At the same time, because traditional edge sewing requires firm positioning, it cannot be placed in the corners of the interior, and the shape is highly restricted. Therefore, providing a molding structure and molding process for molding moldings that can be applied to interiors in different areas of a vehicle has become a technical problem to be solved by those skilled in the art. Summary of the invention

[0004] To this end, the present invention proposes a molding structure and molding method for a vehicle interior, which can be applied to various interior structures of a vehicle.

[0005] In view of the above technical problems, the present invention provides the following technical solutions:

[0006] A trim molding structure comprises: a first frame, wherein the outer surface of the first frame has a step surface and is divided into a first surface and a second surface by the step surface, and the second surface is lower than the first surface; a second frame, connected to the second surface of the first frame and spaced apart from the step surface; at least one molding component, connected to the second surface of the first frame and located in the area between the step surface of the first frame and the second frame; a covering component, covering the outer surfaces of the first frame, the molding component and the second frame, and the outer contour of the covering component matches the outer contour of the outer surfaces of the first frame, the molding component and the second frame.

[0007] In some embodiments of the present invention, the molding is a protrusion integrally formed on the first frame.

[0008] In some embodiments of the present invention, the covering member includes a first covering member covering the first surface and the step surface of the first frame, a second covering member covering at least the outer surface of the molding, and a third covering member covering at least the exposed surface of the second frame.

[0009] In some embodiments of the present invention, the first covering member is sewn to the second covering member and covers the outer surfaces of the first frame and the molding, and the third covering member covers the outer surface of the second frame and a partial area of ​​the third covering member contacts the second covering member.

[0010] In some implementation modes of the present invention, an upper surface of the molding is higher than a first surface of the first frame and an upper surface of the second frame.

[0011] In some embodiments of the present invention, the first covering member, the second covering member and the third covering member have the same thickness.

[0012] In some implementation modes of the present invention, the first frame, the second frame, and the fillet molding are plastic parts, and the covering part is made of a flexible patch material.

[0013] The present invention also provides a molding process for an interior trim molding structure, comprising the following steps:

[0014] A first frame is formed by a mold, wherein the outer surface of the first frame has a step surface and is divided into a first surface and a second surface by the step surface, wherein the second surface is lower than the first surface, and a molding piece is integrally formed on the second surface, wherein the molding piece is spaced apart from the step surface;

[0015] Spraying glue on the inner side of the covering piece and drying it, so as to cover the first surface of the first frame, the molding piece and a part of the second surface;

[0016] Forming a second frame by a mold, and covering the outer surface of the second frame with a covering member;

[0017] The second frame with the covering part is connected to the second surface of the first frame with the covering part, and abuts against the covering part covering the molding part.

[0018] In some embodiments of the present invention, the first covering member and the second covering member are sewn together and then covered on the first surface, the molding and a part of the second surface of the first frame; and the third covering member is covered on the outer surface of the second frame.

[0019] In some embodiments of the present invention, the outer surface of the first skeleton includes a bending surface, and the covering is covered on the first skeleton by a hot pressing mold. The hot pressing mold includes a first mold for supporting the lower side of the first skeleton, and at least two second molds for hot pressing the covering to the outer surface of the first skeleton, and each second mold has a different hot pressing direction.

[0020] The present invention also provides a vehicle, comprising the interior trim molding structure.

[0021] The technical solution of the present invention has the following technical effects compared with the prior art:

[0022] In the interior molding structure provided by the present invention, a step surface is formed on the outer surface of the first frame, a molding molding part and a second frame are connected on the second surface located in the lower area of ​​the step surface, and a covering part is coated on the outer surface to form an interior molding with a molding shape. The above structure is simple and easy to form, and can realize molding molding of interior moldings in different areas of the vehicle.

[0023] In the molding process of the interior trim molding structure provided by the present invention, the process cost can be reduced and the connection strength of the molding part can be improved by directly integrally molding the molding part on the first frame; at the same time, the method of connecting the first frame coated with the covering part and the second frame coated with the covering part can further reduce the process difficulty of the molding process of the molding part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the objects and advantages of the present invention, wherein:

[0025] Figure 1 A structural schematic diagram of a specific implementation of the interior trim molding structure provided by the present invention;

[0026] Figure 2 Another structural schematic diagram of a specific implementation of the interior trim molding structure provided by the present invention;

[0027] Figure 3 Another structural schematic diagram of a specific implementation of the interior trim molding structure provided by the present invention;

[0028] Figure 4 It is a schematic diagram of hot pressing the first framework and the covering part in the molding process of the interior trim molding structure provided by the present invention. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 1-Figure 3 The figure shows a specific implementation of the interior trim molding structure provided by the present invention, which is used in vehicle interior trim, such as the upper surface area of ​​the vehicle operating panel interior trim.

[0034] like Figure 1-Figure 3As shown, the interior trim molding structure includes a first frame 10, a second frame 20, and at least one molding molding part 30; wherein the outer surface of the first frame 10 has a step surface 13 and is divided into a first surface 11 and a second surface 12 by the step surface 13, and the second surface 12 is lower than the first surface 11; the molding molding part 30 is connected to the second surface 12 of the first frame 10 and is spaced apart from the step surface 13; the second frame 20 is connected to the second surface 12 of the first frame 10 and is spaced apart from the molding molding part 30; and also includes a covering part 40 covering the outer surfaces of the first frame 10, the molding molding part 30 and the second frame 20, and the outer contour of the covering part 40 matches the outer contour of the outer surfaces of the first frame 10, the molding molding part 30 and the second frame 20.

[0035] The above-mentioned interior molding structure is formed by connecting the molding molding part 30 and the second frame 20 on the second surface 12 of the first frame 10, and covering the outer surface with a covering part 40, so as to form an interior molding with a molding shape. The first frame 10, the molding molding part 30 and the second frame 20 can all be made of light-resistant and heat-resistant materials, such as plastic, to reduce material costs. At the same time, the development cost of the coating process is relatively low.

[0036] Specifically, in an optional implementation manner, Figure 3 As shown, the molding 30 is a protrusion integrally formed on the first frame 10; more specifically, the protrusion can be flexibly changed according to the shape of the interior decoration. For example, if the molding 30 is required to have a large rounded corner, it can be achieved by increasing the rounded corner on the injection mold or selecting a thicker covering member 40, which is highly flexible. In other alternative embodiments, the molding 30 can also be connected to the second surface 12 of the first frame 10 by bonding, clamping or fastening.

[0037] Specifically, the molding structure of the covering member 40 is not unique; in an optional embodiment, the covering member 40 is an integrated covering member 40, which is entirely covered on the surface of the first frame 10, the molding member 30 and the upper exposed area of ​​the second frame 20. Since the shapes of some vehicle interior parts are relatively complex, for example, some areas of the first frame 10 and the second frame 20 have bending areas, it is difficult for the integrated covering member 40 to be evenly covered thereon. Therefore, in another optional embodiment, such as Figure 2 , Figure 3 As shown, the covering member 40 includes a first covering member 41 covering the first surface 11 and the step surface 13 of the first frame 10, a second covering member 42 covering at least the outer surface of the molding 30, and a third covering member 43 covering at least the exposed surface of the second frame 20.

[0038] More specifically, the molding structure of the second covering member 42 is not unique. In one embodiment, Figure 1 As shown, the second covering member 42 only covers the outer surface of the protrusion of the molding 30; the partial area of ​​the second covering member 42 close to the step surface 13 of the first frame 10 abuts against the area covered by the first covering member 41 on the step surface 13, and the partial area of ​​the second covering member 42 close to the second frame 20 abuts against the partial area of ​​the third covering member 43. In another embodiment, as Figure 3 As shown, the second covering member 42 not only covers the raised outer surface of the molding molding 30 , but also extends a certain length along the second surface 12 on a side close to the second frame 20 , so that the second covering member 42 can cover the molding molding 30 more reliably.

[0039] More specifically, the structure of the third covering member 43 covering the outer surface of the second frame 20 is not unique; in one embodiment, Figure 1 As shown, the third covering member 43 only covers the exposed upper surface of the second frame 20 and the side surface opposite to the molding member 30. In another embodiment, as Figure 3 As shown, the third covering member 43 covers the entire outer surface of the second frame 20 .

[0040] Specifically, the first covering member 41 and the second covering member 42 are sewn together and covered on the outer surfaces of the first frame 10 and the molding 30 , and the third covering member 43 is covered on the outer surface of the second frame 20 and a part of the third covering member 43 contacts the second covering member 42 .

[0041] In a specific implementation manner, Figure 2 As shown, the molding molding parts 30 are provided in two, wherein the second covering part 42 covers the raised outer surfaces of the two molding molding parts 30 and extends a certain length along the second surface 12 on the side close to the second frame 20 so that the second covering part 42 can cover the molding molding parts 30 more reliably.

[0042] Specifically, the upper surface of the molding 30 is higher than the first surface 11 of the first frame 10 and the upper surface of the second frame 20 to form a more obvious molding shape.

[0043] The first frame 10 and the second frame 20 are plastic parts, and the covering part 40 is made of a variety of materials and combinations, such as PVC, leather, PU, ​​cloth and other flexible materials. The thickness of the first covering part 41, the second covering part 42 and the third covering part 43 are consistent to improve the overall appearance of the interior decoration.

[0044] The present invention also provides a specific implementation of a molding process for an interior trim molding structure, which includes the following steps:

[0045] S1. Forming a first frame 10 by a mold, wherein the outer surface of the first frame 10 has a step surface 13 and is divided into a first surface 11 and a second surface 12 by the step surface 13, the second surface 12 is lower than the first surface 11, and a molding 30 is integrally formed on the second surface 12, and the molding 30 is spaced apart from the step surface 13;

[0046] Specifically, the first frame 10 is a plastic part, and the first frame 10 having the inlay molding part 30 is molded by an injection mold; the process cost can be reduced by directly integrally molding the inlay molding part 30 on the first frame 10. Compared with the inlay molding part 30 connected by other methods such as bonding or clamping, the integral molding method can improve the connection strength of the inlay molding part 30.

[0047] S2. The inner side of the covering member 40 is sprayed with glue and dried, and coated on the first surface 11 of the first frame 10, the molding molding 30 and a portion of the second surface 12;

[0048] Specifically, Figure 3 , Figure 4 As shown, the covering member 40 includes a first covering member 41 covering the first surface 11 and the step surface 13 of the first frame 10, and a second covering member 42 covering the outer surface of the molding 30 and a partial area of ​​the second surface 12. The first covering member 41 and the second covering member 42 are sewn together and covered on the first surface 11 of the first frame 10, the molding 30 and a partial area of ​​the second surface 12.

[0049] Specifically, the outer surface of the first frame 10 is sprayed with glue and dried, the back surfaces of the sewn first covering part 41 and the second covering part 42 are sprayed with glue and dried, the covering part 40 and the first frame 10 are manually bonded and placed in a hot pressing mold. After the mold is closed, the glue is activated so that the covering part 40 is coated on the first frame 10.

[0050] Specifically, when the outer surface of the first frame 10 is a straight surface or a nearly straight surface, the hot pressing mold can be hot pressed using two opening molds arranged opposite to each other. For example, the hot pressing mold includes a first mold A1 supporting the lower side of the first frame 10 and a second mold A2 for hot pressing the upper side of the first frame 10; Figure 3 , Figure 4When the outer surface of the first frame 10 includes a bending surface, the hot pressing mold includes a first mold A1 for supporting the lower side of the first frame 10, and at least two second molds A2 for hot pressing the covering member 40 to the outer surface of the first frame 10, wherein the hot pressing directions of each of the second molds A2 are different. For example, different numbers of second molds A2 can be selected according to the size of the bending angle, such as Figure 4 As shown, when the bending angle is an obtuse angle, two second molds A2 can be selected, wherein one second mold A2 covers the area where the first surface 11 of the first skeleton 10 is located, and the bottom surface of its mold cavity matches the first surface 11 of the first skeleton 10; the other second mold A2 covers the fillet molding 30 of the first skeleton 10 and a partial area of ​​the second surface 12, and the bottom surface of its mold cavity matches the second surface 12 of the first skeleton 10 and the fillet molding 30, which can make the covering fit of different areas of the outer surface of the first skeleton 10 higher.

[0051] S3. Forming the second frame 20 by a mold, and covering the outer surface of the second frame 20 with the covering member 40;

[0052] Specifically, the second frame 20 is a plastic part, and the second frame 20 is formed by an injection mold; the third covering part 43 is covered on the entire outer surface of the second frame 20 by using a conventional covering process.

[0053] S4. Connect the second frame 20 having the covering member 40 to the second surface 12 of the first frame 10 and abut against the molding member 30 .

[0054] Specifically, the second frame 20 covered with the third covering member 43 can be fixed to the second surface 12 of the first frame 10 by means of clamping, bonding or fastening, and one side of the second frame 20 is abutted against the second covering member 42 on the molding molding member 30. Compared with the method of integrally forming the molding molding member 30 and the second frame 20 on the first frame 10 and then covering them, the first frame 10 covered with the covering member 40 and the second frame 20 covered with the covering member 40 are connected by means of clamping, bonding or fastening, which can further reduce the process difficulty, make the covering effect of the covering member 40 better, and improve the molding effect of the overall exterior decoration.

[0055] The present invention also provides a specific embodiment of a vehicle, which includes the interior trim molding structure described above, which will not be described in detail here.

[0056] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A molding structure for interior trim strips, characterized in that: include: A first frame, wherein an outer surface of the first frame has a step surface and is divided into a first surface and a second surface by the step surface, and the second surface is lower than the first surface; A second frame connected to the second surface of the first frame and spaced apart from the step surface; At least one molding member connected to the second surface of the first frame and located in the area between the step surface of the first frame and the second frame; The covering member covers the outer surfaces of the first frame, the molding member and the second frame, and the outer contour of the covering member matches the outer contours of the outer surfaces of the first frame, the molding member and the second frame.

2. The interior trim molding structure according to claim 1, characterized in that: The molding is a protrusion integrally formed on the first frame.

3. The interior trim molding structure according to claim 1, characterized in that: The covering member includes a first covering member covering the first surface and the step surface of the first frame, a second covering member covering at least the outer surface of the molding, and a third covering member covering at least the exposed surface of the second frame.

4. The interior trim molding structure according to claim 3, characterized in that: The first covering member is connected to the second covering member by sewing and covering the outer surfaces of the first frame and the molding. The third covering member covers the outer surface of the second frame and a part of the third covering member contacts the second covering member.

5. The interior trim molding structure according to claim 1, characterized in that: The upper surface of the molding is higher than the first surface of the first frame and the upper surface of the second frame.

6. The interior trim molding structure according to claim 3, characterized in that: The first covering member, the second covering member and the third covering member have the same thickness.

7. A molding process for an interior trim molding structure, characterized in that: The steps include: A first frame is formed by a mold, wherein the outer surface of the first frame has a step surface and is divided into a first surface and a second surface by the step surface, wherein the second surface is lower than the first surface, and a molding piece is integrally formed on the second surface, wherein the molding piece is spaced apart from the step surface; Spraying glue on the inner side of the covering piece and drying it, so as to cover the first surface of the first frame, the molding piece and a part of the second surface; Forming a second frame by a mold, and covering the outer surface of the second frame with a covering member; The second frame with the covering part is connected to the second surface of the first frame with the covering part, and abuts against the covering part covering the molding part.

8. The molding process of the interior trim molding structure according to claim 7, characterized in that: The first covering piece and the second covering piece are sewn together and covered on the first surface, the molding and a part of the second surface of the first frame; and the third covering piece is covered on the outer surface of the second frame.

9. The molding process of the interior trim molding structure according to claim 7, characterized in that: The outer surface of the first skeleton includes a bending surface, and the covering is covered on the first skeleton by a hot pressing mold. The hot pressing mold includes a first mold for supporting the lower side of the first skeleton, and at least two second molds for hot pressing the covering to the outer surface of the first skeleton, and each second mold has a different hot pressing direction.

10. A vehicle, characterized in that: It comprises the interior trim molding structure as described in any one of claims 1-6.

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