Integrated forming method for interior decorating part and decorating part

Abstract

The invention provides an integrated forming method for an interior decorating part and the decorating part, and the integrated forming method for the interior decorating part comprises the following steps: sewing a plurality of surface decorating materials according to a preset sequence, and forming a sewing edge between two adjacent surface decorating materials; a fixing piece is used for positioning the surface decoration material along the sewing edge; the fixed part of the positioned surface decoration material is placed on a mold upwards, a plurality of positioning pins are arranged on the mold, and the surface decoration material is fixed to the mold by inserting the positioning pins into the fixed part; and carrying out injection molding on the surface decoration material on the mold by using an injection molding framework. According to the integrated forming method for the interior decorating part, multiple surface decorating materials are subjected to integrated injection molding, and the technological process is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of processing vehicle interior trim panels, and in particular to an integral forming method for a vehicle interior decorative part and the decorative part. Background Art

[0002] In order to achieve comfort and aesthetic effects, automotive interior parts are usually attached with soft skins with specific patterns and stitching. Currently, in the design of interior decoration parts, different surface treatments and tactile areas are separated into separate parts to meet different surface treatment process requirements. However, the separate disassembly processing makes the process flow long, the control nodes are many, the logistics consumption is high, the structural design is complex, and the processing cost is increased, resulting in a large amount of carbon emissions in the production process. Summary of the invention

[0003] In view of the problems of long process flow and complicated operation in the existing processing of vehicle interior decoration parts, the present invention provides a method for integrally forming a vehicle interior decoration part and a method for manufacturing the same.

[0004] In one aspect, the present invention provides a method for integrally forming a vehicle interior decoration part, comprising the following steps:

[0005] Sewing a plurality of surface decoration materials in a preset order to form a sewing edge between two adjacent surface decoration materials;

[0006] Using a fixing member to position the surface decoration material along the stitching edge;

[0007] The positioned surface decoration material fixing piece is placed upward on the mold, and a plurality of positioning pins are arranged on the mold, and the surface decoration material is fixed on the mold by plugging the positioning pins with the fixing piece;

[0008] The surface decoration material on the mold is injection molded using an injection molding skeleton.

[0009] In the present invention, a plurality of surface decorative materials are positioned by using a fixing piece, and the fixing piece is connected to a positioning pin on a mold, so that surface decorative materials with different surface materials are positioned in different areas on the mold, thereby realizing zoned injection molding. By stitching together a plurality of surface decorative materials and then injection molding, the one-time molding production of vehicle interior decorative parts with various surfaces is realized, shortening the process flow, reducing production costs, and reducing carbon emissions during the production process.

[0010] Optionally, the fixing member includes at least one limiting strip and a plurality of connecting strips, and a positioning hole is provided on a side of the limiting strip facing the surface decoration material; and the step of "positioning the surface decoration material along the stitching edge using the fixing member" further includes:

[0011] Disposing a plurality of the connecting strips at intervals on the surface decoration material and on both sides of the stitching edge relatively, and using the limiting strips to connect the connecting strips on both sides of the stitching edge;

[0012] The positioning needle is passed through the suture edge and plugged into the positioning hole.

[0013] Optionally, the connecting strip includes a first connecting portion and a second connecting portion, and the second connecting portion is bent from the first connecting portion toward one end of the surface decoration material in a direction away from the stitching edge; in the step of "arranging multiple connecting strips at intervals on the surface decoration material", it also includes abutting the second connecting portion against the surface decoration material, and then gluing or sewing the first connecting portion to one side of the stitching edge.

[0014] Optionally, a plurality of suturing holes are provided at the connection between the first connecting part and the second connecting part, and in the step of "bonding or sewing the first connecting part to one side of the suturing edge", sutures are passed through the suturing holes to connect the connecting strip to the surface decoration material.

[0015] Optionally, a slot is provided in the limiting strip, and the positioning hole is provided in the slot; in the step of "using the limiting strip to connect the connecting strips on both sides of the sewing edge", it includes clamping the two first connecting parts oppositely arranged on both sides of the sewing edge into the slot.

[0016] Optionally, the limiting strip and the connecting strip are both made of PP material.

[0017] Optionally, the injection molding skeleton is coated on the outer periphery of the fixing part, and when the surface decoration material on the mold is injection molded using the injection molding skeleton, the limiting strip and the connecting strip are melted and integrally formed.

[0018] Optionally, a plurality of mold cavities are provided in the mold, and in the step of "plugging the fixing member with the positioning pin", the plurality of positioning pins are arranged on the edge of the mold cavity.

[0019] Optionally, when the surface decoration material on the mold is injection molded using the injection molding skeleton, the surface decoration materials in the plurality of mold cavities are injection molded in a preset order.

[0020] On the other hand, the present invention further provides a decorative part, which is obtained by processing the method for integrally forming an interior decorative part of a vehicle as described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the connection between various surface decoration materials and a fixing member after being sewn in a method for integrally forming an interior decoration part of a vehicle provided by one embodiment of the present invention;

[0022] Figure 2 It is a processing schematic diagram of a method for integrally forming a vehicle interior decoration part provided by one embodiment of the present invention;

[0023] Figure 3 It is a processing schematic diagram of a method for integrally forming a vehicle interior decoration part provided by one embodiment of the present invention;

[0024] Figure 4 It is a processing schematic diagram of a method for integrally forming a vehicle interior decoration part provided by one embodiment of the present invention.

[0025] The reference numerals in the drawings of the specification are as follows:

[0026] 1. Surface decoration materials; 11. Stitched edges;

[0027] 2. Mold; 21. Positioning pin;

[0028] 3. Injection molding skeleton;

[0029] 4. Limiting strip; 41. Card slot;

[0030] 5. Connecting strip; 51. First connecting portion; 52. Second connecting portion. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0033] On the one hand, if Figure 1-Figure 4 As shown, a method for integrally forming a vehicle interior decoration part according to an embodiment of the present invention comprises the following steps:

[0034] The various surface decoration materials 1 are sewn together in a preset order to form a sewing edge 11 between two adjacent surface decoration materials 1; specifically, the various surface decoration materials 1 are made of different materials, and the surface decoration materials 1 include but are not limited to one or more of fabrics, PVC fabrics, and preformed membranes.

[0035] Using a fixing member to position the surface decoration material 1 along the stitching edge 11;

[0036] The positioned surface decoration material 1 is placed on the mold 2 with the fixing piece facing upwards. The mold 2 is provided with a plurality of positioning pins 21. The positioning pins 21 are plugged into the fixing piece to fix the surface decoration material 1 on the mold 2.

[0037] The surface decoration material 1 on the mold 2 is injection molded using an injection molding skeleton 3 .

[0038] In the embodiment of the present invention, a plurality of surface decoration materials 1 are positioned by using a fixing piece, and the fixing piece is connected to the positioning pin 21 on the mold 2, so that the surface decoration materials 1 with different surface materials are positioned in different areas on the mold 2, thereby realizing the zoned injection molding. By stitching together the plurality of surface decoration materials 1 and then performing injection molding, the one-time molding production of the vehicle interior decoration parts with various surfaces is realized, the process flow is shortened, the production cost is reduced, and the carbon emission in the production process is reduced.

[0039] like Figure 2 As shown, in a specific embodiment, the surface decoration materials are PU+FOAM pieces 1a, PVC+FOAM pieces 1b, preformed armor bright black film pieces 1c and PVC pieces 1d.

[0040] like Figure 3 As shown, in some embodiments of the present invention, the fixing member includes at least one limiting strip 4 and a plurality of connecting strips 5, and the limiting strip 4 is provided with a positioning hole (not shown in the figure) on a side facing the surface decoration material 1. In the step of "positioning the surface decoration material 1 along the stitching edge 11 using the fixing member", it also includes:

[0041] A plurality of the connecting strips 5 are arranged at intervals on the surface decoration material 1 and are relatively arranged on both sides of the sewing edge 11. The limiting strips 4 are used to connect the connecting strips 5 on both sides of the sewing edge 11.

[0042] The positioning needle 21 is passed through the sewing edge 11 and plugged into the positioning hole.

[0043] The stitching edge 11 is positioned by setting a connecting strip 5, which is connected to the connecting strip 5 through a limiting strip 4 and then clamped with a positioning needle 21, so that the surface decoration materials 1 of different materials are fixed on the mold 2 through the arrangement of the positioning needles 21, thereby positioning the boundaries between the surface decoration materials 1 of different materials.

[0044] like Figure 3 As shown, in some embodiments of the present invention, the connecting strip 5 includes a first connecting portion 51 and a second connecting portion 52, and the second connecting portion 52 is bent from the first connecting portion 51 toward one end of the surface decoration material 1 in a direction away from the stitching edge 11. In the step of "arranging a plurality of the connecting strips 5 on the surface decoration material 1 at intervals", it also includes abutting the second connecting portion 52 against the surface decoration material 1, and then bonding or sewing the first connecting portion 51 to one side of the stitching edge 11.

[0045] Specifically, the surface decoration material 1 is made of different materials and connected to the first connection part 51 in different connection methods. When the surface decoration material 1 is fabric or PVC fabric, the first connection part 51 and the surface decoration material 1 are connected by sewing thread. When the surface decoration material 1 is a membrane, it is bonded by glue or adhesive.

[0046] In some embodiments of the present invention, a plurality of suturing holes (not shown) are provided at the connection between the first connecting portion 51 and the second connecting portion 52. In the step of "bonding or sewing the first connecting portion 51 to one side of the suturing edge 11", sutures are passed through the suturing holes to connect the connecting strip 5 to the surface decoration material 1.

[0047] like Figure 3 As shown, in some embodiments of the present invention, a slot 41 is provided in the limiting strip 4, and the positioning hole is provided in the slot 41. In the step of "using the limiting strip 4 to connect the connecting strips 5 on both sides of the suture edge 11", the two first connecting parts 51 arranged opposite to each other on both sides of the suture edge 11 are clamped in the slot 41. Specifically, the connecting strips 5 on the suture edge 11 are distributed at intervals, and the positioning pin 21 passes through the gap in the suture edge 11 and is inserted into the positioning hole to avoid damaging the overall aesthetics.

[0048] After the first connecting portion 51 is bonded or sewn to one side of the sewing edge 11 , the limiting strips 4 are used to fix the connecting strips 5 on both sides of the sewing edge 11 .

[0049] In some embodiments of the present invention, the limiting strip 4 and the connecting strip 5 are both made of PP material.

[0050] like Figure 4 As shown, in some embodiments of the present invention, the injection molding skeleton 3 is wrapped around the periphery of the fixing part. When the surface decoration material 1 on the mold 2 is injection molded using the injection molding skeleton 3, the limiting strip 4 and the connecting strip 5 are melted and integrally formed, so that the boundaries of the surface decoration materials 1 of different materials are tightly connected.

[0051] In some embodiments of the present invention, a plurality of mold cavities are provided in the mold 2, and in the step of "plugging the positioning pins 21 with the fixing member", the plurality of positioning pins 21 are provided at the edge of the mold cavity.

[0052] In some embodiments of the present invention, when the surface decoration material 1 on the mold 2 is injection molded using the injection molding skeleton 3, the surface decoration materials 1 in multiple mold cavities are injection molded in a preset order, so as to solve the problem of different elongation rates of the surface decoration materials 1 with different surface materials and facilitate the injection molding of the surface decoration materials 1.

[0053] On the other hand, a decorative part according to an embodiment of the present invention is obtained by the method for integrally forming a vehicle interior decorative part according to any one of the above embodiments.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A method for integrally forming a vehicle interior decoration part, characterized in that: The following steps are involved: Sewing a plurality of surface decoration materials in a preset order to form a sewing edge between two adjacent surface decoration materials; Using a fixing member to position the surface decoration material along the stitching edge; The positioned surface decoration material fixing piece is placed upward on the mold, and a plurality of positioning pins are arranged on the mold, and the surface decoration material is fixed on the mold by plugging the positioning pins with the fixing piece; The surface decoration material on the mold is injection molded using an injection molding skeleton.

2. The method for integrally forming a vehicle interior decoration part according to claim 1, characterized in that: The fixing member includes at least one limiting strip and a plurality of connecting strips, and a positioning hole is provided on a side of the limiting strip facing the surface decoration material; in the step of "positioning the surface decoration material along the stitching edge using the fixing member", it also includes: Disposing a plurality of the connecting strips at intervals on the surface decoration material and on both sides of the stitching edge relatively, and using the limiting strips to connect the connecting strips on both sides of the stitching edge; The positioning needle is passed through the suture edge and plugged into the positioning hole.

3. The method for integrally forming a vehicle interior decoration part according to claim 2, characterized in that: The connecting strip includes a first connecting portion and a second connecting portion, and the second connecting portion is bent from the first connecting portion toward one end of the surface decoration material in a direction away from the stitching edge; in the step of "arranging multiple connecting strips on the surface decoration material at intervals", it also includes abutting the second connecting portion against the surface decoration material, and then gluing or sewing the first connecting portion to one side of the stitching edge.

4. The method for integrally forming a vehicle interior decoration part according to claim 3, characterized in that: A plurality of suturing holes are provided at the connection between the first connecting portion and the second connecting portion. In the step of "bonding or sewing the first connecting portion to one side of the suturing edge", sutures are passed through the suturing holes to connect the connecting strip to the surface decoration material.

5. The method for integrally forming a vehicle interior decoration part according to claim 3, characterized in that: A slot is provided in the limiting strip, and the positioning hole is provided in the slot; in the step of "using the limiting strip to connect the connecting strips on both sides of the sewing edge", it includes clamping the two first connecting parts arranged opposite to each other on both sides of the sewing edge into the slot.

6. The method for integrally forming a vehicle interior decoration part according to claim 2, characterized in that: The limiting strips and the connecting strips are both made from PP material.

7. The method for integrally forming a vehicle interior decoration part according to claim 6, characterized in that: The injection molding skeleton is coated on the outer periphery of the fixing part. When the surface decoration material on the mold is injection molded using the injection molding skeleton, the limiting strip and the connecting strip are melted and integrally formed.

8. The method for integrally forming a vehicle interior decoration part according to claim 1, characterized in that: The mold is provided with a plurality of mold cavities, and in the step of "plugging the fixing member with the positioning pins", the plurality of positioning pins are arranged at the edge of the mold cavity.

9. The method for integrally forming a vehicle interior decoration part according to claim 8, characterized in that: When the surface decoration material on the mold is injection molded using the injection molding skeleton, the surface decoration materials in the plurality of mold cavities are injection molded in a preset order.

10. A decorative part, characterized in that: The vehicle interior decoration part is obtained by the integral forming method of any one of claims 1 to 9.

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