CN113103567A - Seat cover based on heterogeneous material 3D printing technology and forming method thereof - Google Patents
Seat cover based on heterogeneous material 3D printing technology and forming method thereof Download PDFInfo
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- CN113103567A CN113103567A CN202110379086.3A CN202110379086A CN113103567A CN 113103567 A CN113103567 A CN 113103567A CN 202110379086 A CN202110379086 A CN 202110379086A CN 113103567 A CN113103567 A CN 113103567A
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- seat
- piece
- sheets
- skirt
- middle sheet
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- 239000000463 material Substances 0.000 title claims abstract description 73
- 238000010146 3D printing Methods 0.000 title claims abstract description 34
- 238000005516 engineering process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005187 foaming Methods 0.000 claims abstract description 20
- 241000446313 Lamella Species 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 54
- 239000002344 surface layer Substances 0.000 claims description 16
- 239000004677 Nylon Substances 0.000 claims description 15
- 229920001778 nylon Polymers 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 230000032050 esterification Effects 0.000 claims description 6
- 238000005886 esterification reaction Methods 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 150000004291 polyenes Chemical class 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920006295 polythiol Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- 229920006305 unsaturated polyester Polymers 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 description 10
- 239000004744 fabric Substances 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 239000006260 foam Substances 0.000 description 6
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 5
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009958 sewing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241001481789 Rupicapra Species 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5825—Seat coverings attachments thereof by hooks, staples, clips, snap fasteners or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
Abstract
The invention discloses a seat surface sleeve based on a heterogeneous material 3D printing technology and a forming method thereof, wherein the seat surface sleeve comprises a middle sheet, side wing sheets and skirt side edge sheets, wherein the two side wing sheets and the two skirt side edge sheets are symmetrically arranged at two sides of the middle sheet; the middle sheet is connected with the side sheets through a first fastener, and the seat surface sleeve is fixedly connected with a fastening device embedded in seat foaming through the first fastener; the hardness of the middle sheet, the side wing sheets and the skirt side edge sheets far away from the foaming side of the seat is less than that of the middle sheet, the side wing sheets and the skirt side edge sheets near the foaming side of the seat; the whole that intermediate lamella, side flap, skirt side piece and first fastener are constituteed is integrated into one piece. According to the invention, different cut pieces of the seat surface cover and the fastening piece are integrally formed by applying a heterogeneous material 3D printing technology, and different materials are used at different positions according to the use requirements of the seat surface cover, so that the functional requirements of different areas of the surface cover are met on the basis of simplifying the surface cover production process, and the application prospect is very wide.
Description
Technical Field
The invention belongs to the technical field of automobile articles, and relates to a seat cover based on a heterogeneous material 3D printing technology and a forming method thereof.
Background
With the development of society, automobiles increasingly enter every family in China, and automobile seats are the most interior contacted by drivers and passengers, so that the comfort of the seats is a crucial experience for driving and riding compared with other parts. The material used for the seat cover can directly feed back the feeling of sitting.
The existing face sleeve mainly comprises three types of materials, namely a main face material, an auxiliary face material and other parts. The main surface material is also called surface material, which constitutes the key part of the main exposed part of the face cover, and the part is directly contacted with human body, generally the insert, insert upper and bolster areas, and mainly comprises fabric material, PVC (artificial leather), genuine leather, chamois leather and other materials, and the material design of many chairs is mainly carried out on the main surface material. The auxiliary fabric is a supporting layer fabric, which forms the internal structure of the face cover and covers non-critical parts, such as carpet cloth of a back row backrest, non-woven fabric and a sponge layer in the face cover. Other Parts (B-Parts), mainly fasteners, such as profiles for fixing with foam, labels for air bags, zippers for face covers, etc. The facing cover is fastened by connecting the C-shaped ring with a fabric fastener, and then fixing the C-shaped ring on the seat foaming embedded steel wire, as shown in figure 1. The current seat cover manufacturing has several problems: firstly, in order to match with different use requirements, multiple materials are prepared, the materials are multiple in types, and management is disordered; secondly, the production flow is complex, time and labor are consumed, and the stability of the product is highly related to the skill of workers.
Therefore, the development of the manufacturing process of the seat cover, which is simple in manufacturing process, low in cost and good in product stability, has a practical significance.
Disclosure of Invention
The invention aims to overcome the defects that the prior art is complex in process, time-consuming and labor-consuming, and the stability of the product is highly related to the skill of workers, and provides the seat cover manufacturing process which is simple in manufacturing process, low in cost and good in product stability. The seat surface cover manufacturing process provided by the invention is characterized in that different cutting pieces of the seat surface cover and the fastening piece are integrally formed by applying a heterogeneous material 3D printing technology (such as a digital droplet jetting technology), and different materials are used at different positions according to the use requirements of the seat surface cover, for example, the contact area of the surface and a human body is soft and comfortable, the area of the fastening piece is hard and keeps strength, the middle area has certain flexibility to ensure that a worker can conveniently install, the functional requirements of different areas of the surface cover are met on the basis of simplifying the surface cover production process by the method provided by the invention, and the application prospect is wide.
In order to achieve the purpose, the invention provides the following technical scheme:
a seat surface cover based on a heterogeneous material 3D printing technology comprises a middle sheet (insert), side flaps (bolster) and skirt side flaps (vibrating side), wherein the side flaps and the skirt side flaps are symmetrically arranged on two sides of the middle sheet;
the middle sheet is connected with the side sheets through a first fastener, and the seat surface sleeve is fixedly connected with a fastening device embedded in seat foaming through the first fastener;
the hardness of the middle sheet, the side wing sheets and the skirt side edge sheets far away from the foaming side of the seat is less than that of the middle sheet, the side wing sheets and the skirt side edge sheets near the foaming side of the seat;
the whole that intermediate lamella, side flap, skirt side piece and first fastener are constituteed is integrated into one piece spare.
Of course, the skirt side panels may be integrally connected to the central panel, the side flaps and the first fastening member by conventional processes (sewing), instead of being integrally formed with the central panel, the side flaps and the first fastening member, which saves time and cost and can be selected by the person skilled in the art according to the actual requirements.
Compared with the prior art which needs to be sewn for multiple times, the seat cover based on the heterogeneous material 3D printing technology is integrally formed, is simple in production process, does not need to prepare multiple fabrics, does not need to select materials reasonably according to needs, is seamless as a whole, is higher in strength and better in fitting property, is good in product stability, and has a great application prospect.
As a preferred technical scheme:
according to the seat surface sleeve based on the heterogeneous material 3D printing technology, the fastening device is a C-shaped groove;
the first fastener is in an arrow-shaped structure and is wedged into the fastening device to complete fixed connection. The form of the fastening device and the first fastening member of the present invention is not limited thereto, and those skilled in the art can reasonably design the fastening device and the first fastening member according to actual requirements as long as the connection fastness of the fastening device and the first fastening member meets the requirements.
According to the seat cover based on the heterogeneous material 3D printing technology, the hardness of the first fastening piece is continuously increased along the arrow direction, and the first fastening piece is made of ABS, nylon aluminum or glass fiber filled nylon.
The seat cover based on the heterogeneous material 3D printing technology comprises a middle sheet, a middle sheet surface layer, a middle sheet supporting layer and a seat cover, wherein the middle sheet is in a mesh structure (the air permeability and the supporting performance meet the standard requirements), and the middle sheet supporting layer is in foam contact with the seat;
the material of the middle supporting layer is acrylic acid esterification epoxy resin, unsaturated polyester, polyurethane or polythiol/polyene light-cured resin, and the materials have good elasticity and flexibility and can provide sufficient support;
the surface layer of the middle sheet is made of rubber;
the thickness of intermediate lamella is 10mm, the thickness on intermediate lamella top layer is 1 ~ 3mm, the thickness of intermediate lamella supporting layer is 7 ~ 9 mm.
The seat cover based on the heterogeneous material 3D printing technology comprises a side wing piece surface layer and a side wing piece supporting layer, wherein the side wing piece supporting layer is in foaming contact with a seat;
the material of the side wing piece supporting layer is acrylic acid esterification epoxy resin, unsaturated polyester, polyurethane or polythiol/polyene light-cured resin, the materials have good elasticity and flexibility and can provide sufficient support, the hardness of the side wing piece supporting layer is greater than that of the middle piece supporting layer, and the auxiliary foaming provides support and keeps a stiff and smooth appearance;
the surface layer of the side wing piece is made of rubber, so that the side wing piece has enough wear resistance and elasticity, can not float during extrusion deformation, and can quickly recover the shape;
the thickness of side flap is 6mm, the thickness on side flap top layer is 1 ~ 3mm, and the thickness of side flap supporting layer is 3 ~ 5 mm.
According to the seat cover based on the heterogeneous material 3D printing technology, the skirt side edge piece is provided with the second fastening piece in an extending mode, and the second fastening piece is far away from the side edge piece;
the thickness of the skirt side piece is 3mm, and no supporting material (namely a supporting layer) is needed because the skirt side piece is not contacted with a person;
the hardness of the second fastener is greater than that of the skirt side piece;
the second fastener is made of ABS, nylon aluminum or glass fiber filled nylon (because the stress is large, the whole second fastener is made of hard materials, and the strength is guaranteed).
According to the seat cover based on the heterogeneous material 3D printing technology, the airbag is arranged in the joint of the upper side wing piece and the skirt side piece on the outer side of the front seat back, the airbag is coated with the airbag coating strengthening layer, the airbag coating strengthening layer is provided with a notch corresponding to the joint of the side wing piece and the skirt side piece, and the joint of the side wing piece and the skirt side piece is an airbag breach area;
the material of the air bag coating strengthening layer is nylon, and the air bag coating strengthening layer has enough toughness;
the material of the airbag breach zone (about 1cm wide) is rubber, which is weaker than the skirt side panel (a method of reducing the skin material density may be used). The design of the air bag coating strengthening layer (with higher strength and used for providing guidance for the air bag) and the air bag opening area is mainly to ensure that the air bag can pop up according to a set direction so as to protect a user.
The invention also provides a forming method of the seat surface sleeve, the heterogeneous material 3D printing technology is adopted to select materials according to requirements to carry out 3D printing to obtain the integrally formed seat surface sleeve, the shape, the size and the like of each part can be set through three-dimensional software and then processed, and the forming method is high in automation degree and good in quality reliability.
Has the advantages that:
(1) according to the seat cover based on the heterogeneous material 3D printing technology, the sewing time of the cover is saved, the labor cost is saved, the material misuse in the production process is reduced, the production flow is simple, the cost is low, and the product stability is good;
(2) the seat cover based on the heterogeneous material 3D printing technology can meet the requirements of materials, shapes and functions of different positions of the cover and a fastener of the cover, can design a cover fixing structure completely matched with the cover fixing structure according to different frameworks and foaming shapes of seats, gets rid of selection limitation caused by suture splicing, gets rid of limitation of product structures and types fixed by a fastener supplier, and the surface material of the cover depends on the 3D printing technology, so that the functionality (such as ventilation requirement), the aesthetic degree (such as honeycomb structure) and the comfort (such as high elasticity) are greatly improved, the use of a cover composite layer is reduced, the thickness is more freely set, the development time and the development difficulty are saved, a finished product is developed according to a digital model, the precision and the accuracy are higher, the number of parts is reduced, the life cycle management (PLM) of the parts is convenient, and the foolproof design of the fastener in the cover design is reduced, can meet the requirements of more free and changeable seat model design (the requirement of setting the dividing line of the traditional surface cover can be ignored), and has wide application prospect.
Drawings
FIG. 1 is a schematic cross-sectional view of a prior art seat cover;
FIG. 2 is a general schematic view of a seat cover based on heterogeneous material 3D printing technology according to the present invention;
FIG. 3 is a schematic structural view of an intermediate sheet of the present invention;
FIGS. 4 and 5 are schematic views of a first fastener of the present invention and its use, respectively;
FIG. 6 is a schematic cross-sectional view taken along the line A in FIG. 2;
the seat comprises a seat body, a seat foam, a surface sleeve material, a 3-stitch, a 4-fabric fastener, a 5-C-shaped ring, a 6-foam embedded steel wire, a 7-middle piece surface layer, an 8-middle piece supporting layer, a 9-middle piece, a 10-side wing piece, a 11-first fastener, a 12-seat foam embedded fastening device, a 13-skirt side edge piece, an 14-air bag, a 15-air bag coating reinforcing layer and a 16-air bag opening area.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings.
The cross-sectional schematic view of the seat surface cover in the prior art is shown in fig. 1, wherein the surface cover material 2 is spliced by using a suture 3, the spliced part is connected with a C-shaped ring 5 through a fabric fastener 4, the C-shaped ring 5 is connected with a foaming embedded steel wire 6, and the connection of the seat surface cover and the seat foaming 1 is realized.
Example 1
A seat surface cover based on heterogeneous material 3D printing technology is shown in figure 2 and comprises a middle sheet 9, side sheets 10 and skirt side sheets 13, wherein the side sheets and the skirt side sheets are symmetrically arranged on two sides of the middle sheet;
the middle sheet 9 is a mesh structure as shown in fig. 3, and comprises a middle sheet surface layer 7 and a middle sheet supporting layer 8, wherein the middle sheet supporting layer is in foaming contact with the seat;
the material of the middle sheet supporting layer is acrylic acid esterification epoxy resin, unsaturated polyester, polyurethane or polythiol/polyene light-cured resin, the material of the surface layer of the middle sheet is rubber, the thickness of the middle sheet is 10mm, the thickness of the surface layer of the middle sheet is 1-3 mm, and the thickness of the middle sheet supporting layer is 7-9 mm;
the side wing comprises a side wing surface layer and a side wing supporting layer, and the side wing supporting layer is in foaming contact with the seat;
the material of the side wing piece supporting layer is acrylic acid esterification epoxy resin, unsaturated polyester, polyurethane or polythiol/polyene light-cured resin, the hardness of the side wing piece supporting layer is greater than that of the middle piece supporting layer, the material of the side wing piece surface layer is rubber, the thickness of the side wing piece is 6mm, the thickness of the side wing piece surface layer is 1-3 mm, and the thickness of the side wing piece supporting layer is 3-5 mm;
as shown in fig. 4 and 5, the middle piece 9 and the side pieces 10 are connected by a first fastening piece 11, the first fastening piece 11 is an arrow-shaped structure, the seat cover is fixedly connected with a fastening device 12 (specifically, a C-shaped groove) embedded in the seat foam by the first fastening piece 11, the hardness of the first fastening piece 11 is increased along the arrow direction, and the first fastening piece 11 is made of ABS, nylon aluminum or glass fiber filled nylon;
the thickness of the skirt side piece is 3mm, a second fastening piece extends from the side, far away from the side of the skirt side piece, the hardness of the second fastening piece is greater than that of the skirt side piece, and the second fastening piece is made of ABS (acrylonitrile butadiene styrene), nylon aluminum or glass fiber filled nylon;
as shown in fig. 6, an airbag 14 is arranged in a joint of an upper side wing and a skirt side piece on the outer side of a seat back of a front seat, an airbag coating reinforcing layer 15 (made of nylon) is coated outside the airbag 14, a notch corresponding to the joint of the side wing and the skirt side piece is left in the airbag coating reinforcing layer 15 (the using area exceeds the airbag area and the airbag breach area by at least 2cm), and an airbag breach area 16 (made of rubber and about 1cm wide, and the material density of the airbag coating reinforcing layer is lower than that of other surface layers, namely the strength of the airbag coating reinforcing layer is lower than that of the airbag coating reinforcing layer 15 and the skirt side;
the whole that intermediate lamella, side flap, skirt side piece, first fastener and second fastener are constituteed is integrated into one piece spare, and its specific forming method is: the material is selected according to the requirement by adopting a heterogeneous material 3D printing technology to carry out 3D printing.
Through verification, the seat cover based on the heterogeneous material 3D printing technology saves cover sewing time, saves labor cost, reduces material misuse in the production process, and is simple in production flow, low in cost and good in product stability; the requirements of materials, shapes and functions of different positions of the face cover and the fastener thereof can be met, a face cover fixing structure which is completely matched with the face cover can be designed according to different frameworks and foaming shapes of the seat, the selection limit caused by suture splicing is eliminated, the product structure and the type limit fixed by a fastener supplier are eliminated, the surface material of the face cover depends on a 3D printing technology, the functionality (such as ventilation requirement), the attractiveness (such as honeycomb structure) and the comfort (such as high elasticity) are greatly improved, the use of a face cover composite layer is reduced, the thickness is more freely set, the development time and the development difficulty are saved, a finished product is developed according to a digital model, the precision and the accuracy are higher, the number of parts is reduced, the life cycle management (PLM) of the parts is convenient, the foolproof design of the fastener in the face cover design is reduced, the requirements of the more free and changeable seat shape design can be met (the requirements of the dividing, has wide application prospect.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these embodiments are merely illustrative and various changes or modifications may be made without departing from the principles and spirit of the invention.
Claims (8)
1. A seat surface cover based on a heterogeneous material 3D printing technology is characterized by comprising a middle sheet, side wing sheets and skirt side edge sheets, wherein the two side wing sheets and the two skirt side edge sheets are symmetrically arranged on two sides of the middle sheet;
the middle sheet is connected with the side sheets through a first fastener, and the seat surface sleeve is fixedly connected with a fastening device embedded in seat foaming through the first fastener;
the hardness of the middle sheet, the side wing sheets and the skirt side edge sheets far away from the foaming side of the seat is less than that of the middle sheet, the side wing sheets and the skirt side edge sheets near the foaming side of the seat;
the whole that intermediate lamella, side flap, skirt side piece and first fastener are constituteed is integrated into one piece spare.
2. The seat cover based on the heterogeneous material 3D printing technology is characterized in that the fastening device is a C-shaped groove;
the first fastener is in an arrow-shaped structure and is wedged into the fastening device to complete fixed connection.
3. The seat cover based on the heterogeneous material 3D printing technology as claimed in claim 2, wherein the hardness of the first fastening member is increased along the arrow direction, and the first fastening member is made of ABS, nylon aluminum or glass fiber filled nylon.
4. The seat cover based on the heterogeneous material 3D printing technology as claimed in claim 1, wherein the middle sheet is a mesh structure and comprises a middle sheet surface layer and a middle sheet supporting layer, and the middle sheet supporting layer is in foaming contact with the seat;
the material of the middle supporting layer is acrylic acid esterification epoxy resin, unsaturated polyester, polyurethane or polythiol/polyene light-cured resin;
the surface layer of the middle sheet is made of rubber;
the thickness of intermediate lamella is 10mm, the thickness on intermediate lamella top layer is 1 ~ 3mm, the thickness of intermediate lamella supporting layer is 7 ~ 9 mm.
5. The seat cover based on the heterogeneous material 3D printing technology according to claim 4, wherein the side flap comprises a side flap surface layer and a side flap supporting layer, and the side flap supporting layer is in foaming contact with the seat;
the material of the side fin supporting layer is acrylic acid esterification epoxy resin, unsaturated polyester, polyurethane or polythiol/polyene light-cured resin, and the hardness of the side fin supporting layer is greater than that of the middle fin supporting layer;
the surface layer of the side wing panel is made of rubber;
the thickness of side flap is 6mm, the thickness on side flap top layer is 1 ~ 3mm, and the thickness of side flap supporting layer is 3 ~ 5 mm.
6. The seat cover based on the heterogeneous material 3D printing technology as claimed in claim 1, wherein the skirt side piece is provided with a second fastening piece extending away from the side of the side piece;
the thickness of the skirt side piece is 3 mm;
the hardness of the second fastener is greater than that of the skirt side piece;
the second fastener is made of ABS, nylon aluminum or glass fiber filled nylon.
7. The seat cover based on the heterogeneous material 3D printing technology according to claim 1, wherein an air bag is arranged in a joint of an upper side wing piece and a skirt side piece on the outer side of a seat back of a front-row seat, an air bag coating reinforcing layer is coated outside the air bag, a notch corresponding to the joint of the side wing piece and the skirt side piece is reserved on the air bag coating reinforcing layer, and a joint of the side wing piece and the skirt side piece is an air bag opening area;
the material of the air bag coating strengthening layer is nylon;
the material of the airbag opening area is rubber, and the strength of the airbag opening area is smaller than that of the skirt side edge piece.
8. The method for forming the seat surface cover according to any one of claims 1 to 7, wherein the seat surface cover is integrally formed by selecting materials according to requirements and performing 3D printing by adopting a heterogeneous material 3D printing technology.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110379086.3A CN113103567B (en) | 2021-04-08 | 2021-04-08 | Seat surface cover based on heterogeneous material 3D printing technology and forming method thereof |
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| CN202110379086.3A CN113103567B (en) | 2021-04-08 | 2021-04-08 | Seat surface cover based on heterogeneous material 3D printing technology and forming method thereof |
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| CN113103567A true CN113103567A (en) | 2021-07-13 |
| CN113103567B CN113103567B (en) | 2022-10-11 |
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| US20200171991A1 (en) * | 2017-06-14 | 2020-06-04 | Sitech Sitztechnik Gmbh | Upholstered part of a vehicle seat with a foam-encapsulated 3d shaped nonwoven for reinforcing a side member |
| JP2019188973A (en) * | 2018-04-24 | 2019-10-31 | トヨタ紡織株式会社 | Manufacturing method of vehicle seat constitution member |
| US20200231285A1 (en) * | 2019-01-21 | 2020-07-23 | B/E Aerospace, Inc. | Cushion assembly with elastomeric lattice insert |
| CN112550097A (en) * | 2019-09-10 | 2021-03-26 | 福特全球技术公司 | Decorative article composed of integrated structure with variable density and manufacturing method thereof |
| CN112550102A (en) * | 2019-09-10 | 2021-03-26 | 福特全球技术公司 | Decorative article having integrated structural components of varying density and method of making same |
| CN212604706U (en) * | 2020-07-21 | 2021-02-26 | 北汽岱摩斯（沧州）汽车系统有限公司 | Multi-hardness foaming seat |
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| CN113103567B (en) | 2022-10-11 |
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