Seat cover based on heterogeneous material 3D printing technology and forming method thereof

[0044] Example 1

[0045] A seat surface based on heterogeneous material 3D printing technology, such as figure 2 As shown, including the intermediate sheet 9, the side flaps 10, and the skirt side sheet 13, the two side flaps and the two skirt side sheets are symmetrically arranged on both sides of the intermediate sheet;

[0046] Mids 9 image 3 The mesh structure is shown, which includes an intermediate sheet layer 7 and an intermediate sheet support layer 8, and the intermediate sheet support layer is in contact with the seat foam;

[0047] The material of the intermediate sheet support layer is an acrylate epoxy resin, an unsaturated polyester, a polyurethane or a polysulfol / polykenne photocurable resin, and the material of the intermediate surface layer is a rubber, and the thickness of the intermediate sheet is 10 mm, the intermediate sheet layer The thickness of 1 to 3 mm, the thickness of the intermediate sheet support layer is 7 to 9 mm;

[0048] The side flaps include a side flap shape and a side flap support layer, and the side flaps support layer contacts the seat foam;

[0049] The material of the side flap support layer is an acrylate epoxy resin, an unsaturated polyester, a polyurethane or a polysulfol / polylene photocurable resin, and the hardness of the side flap support layer is greater than the intermediate sheet support layer, the material of the side flaps is rubber. The thickness of the side flaps is 6 mm, the thickness of the side flaps is 1 to 3 mm, and the thickness of the side flap support layer is 3 to 5 mm;

[0050] Such as Figure 4 with 5 As shown, the intermediate sheet 9 is connected to the side flap 10, and the first fastener 11 is the arrow structure, the seat cover is buried in the seat cover through the first fastener 11 and the seat. The fastening device 12 (specifically a C-shaped groove) is fixedly coupled, the hardness of the first fastener 11 is increasing along the direction of the arrow, and the material of the first fastener 11 is ABS, nylon aluminum or glass fiber fill nylon;

[0051] The thickness of the skirt side sheet is 3 mm, and the distant slave side extends the second fastener, the hardness of the second fastener is larger than the skirt side sheet, which is made of ABS, nylon aluminum or fiberglass fill nylon;

[0052] Such as Figure 6 As shown, the airbag 14 is provided in the front of the front seat chair back and the skirt side sheet connection is provided, and the airbag 14 is covered with the airbag coating, which is nylon. The airbag is coated. 15 (using the region exceeding the airbag region and the airbag area of ​​the airbag) has a gap corresponding to the side flaps and the skirt side sheet connection, and the side flaps and skirt side sheets are connected to the airbag breakage zone 16 (material is Rubber, approximately 1 cm wide, and its material density is lower than that of other surface layers.

[0053] The overall molded piece of the intermediate sheet, the lateral flap, the skirt side sheet, the first fastener, and the second fastener is integrated, and the specific forming method is: use the heterogeneous material 3D printing technology to select the material for 3D printing according to the demand .

[0054] It is pronounced, the present invention is based on the seat surface of the heterogeneous material 3D printing technology, which saves the sewing time, saving artificial cost, reducing the mistake of materials in the production process, simple production process, low cost, product stability Ok, it can meet the materials, styles and functional requirements of different positions of the face and their fasteners, and can design the complete matching surface fixation, and the seam can be designed according to different skeletons, foaming styles of the seat. The selection restrictions caused by line splicing, get rid of fasteners supplier fixed product structure, species limitations, surface materials of the face, relying on 3D printing technology, functional (such as ventilation requirements), US view (such as honeycomb structure), comfort (, Such as high-elasticity) will significantly increase, reduce the use of the surface cover composite layer, the thickness setting is more free, save development time and development difficulty, the finished product is higher according to digital mode development, accuracy and accuracy, and the number of parts is reduced, and the parts life cycle management (PLM) Convenient, reduce the design of the fasteners in the design, which can meet the needs of more free, multi-change seating design (can ignore the segmentation requirements for traditional face sets), and apply prospects .