CN115198433A - Preparation method of seat cover - Google Patents

Preparation method of seat cover Download PDF

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Publication number
CN115198433A
CN115198433A CN202211012470.0A CN202211012470A CN115198433A CN 115198433 A CN115198433 A CN 115198433A CN 202211012470 A CN202211012470 A CN 202211012470A CN 115198433 A CN115198433 A CN 115198433A
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CN
China
Prior art keywords
seat
cover
knitting
model
seat surface
Prior art date
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Pending
Application number
CN202211012470.0A
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Chinese (zh)
Inventor
蔡谦
陈毅东
高懋森
玮丽斯
杨辉宏
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SAIC Volkswagen Automotive Co Ltd
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SAIC Volkswagen Automotive Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAIC Volkswagen Automotive Co Ltd filed Critical SAIC Volkswagen Automotive Co Ltd
Priority to CN202211012470.0A priority Critical patent/CN115198433A/en
Publication of CN115198433A publication Critical patent/CN115198433A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10Patterned fabrics or articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58Seat coverings
    • B60N2/5891Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

The invention provides a preparation method of a seat cover. The method comprises the following steps: cutting the three-dimensional data of the seat surface cover to obtain a knitted model of the cut seat surface cover; based on the knitting model of the seat surface cover obtained in the previous step, the flat knitting machine reads the knitting model to complete the weaving of the seat surface cover; and covering and fixing the woven seat surface cover on the seat foam. According to the invention, the seat surface cover is woven by means of a seamless three-dimensional knitting technology and a flat knitting machine, so that the product is directly coated on the seat foam without sewing a plurality of cut pieces, the working process is saved, and the surface cover or the cut pieces are provided with three-dimensional profiles and are attached to the surfaces of parts.

Description

Preparation method of seat cover
Technical Field
The invention mainly relates to the field of automobile seats, in particular to a preparation method of a seat surface sleeve.
Background
In the field of automobile seats, fabric materials gradually become high-quality soft materials for replacing genuine leather and artificial leather due to low price, rich appearance effect and high plasticity, so that the design effect and the surface texture of interior materials are enriched while the cost and the weight are reduced to a certain extent.
The traditional process for manufacturing the surface cover of the automobile seat comprises the steps of spinning raw materials, knitting or weaving corresponding surface cover cut pieces by yarn through a knitting machine, dyeing and finishing the surface cover cut pieces, cutting and sewing a plurality of cut pieces, and finally coating the cut pieces to seat foam. Among them, the conventional cut-parts sewing process has a series of problems, such as: the transportation cost of raw materials is high; in the coating method of the automobile seat cut-part fabric, the existing cut-parts can be cut in the coating or cutting process, so that certain material waste exists; the complex production steps impose higher demands on the supply chain requirements and yield.
The circular knitting machine can also realize the effect of seamless knitting, and the yield is slightly higher than that of a flat knitting machine. However, the seat cover woven by the circular knitting machine cannot be designed in shape and surface patterns, the woven finished product is cylindrical due to the characteristics of the circular knitting machine, width fine adjustment can be carried out only through the change of the weaving method of the circular knitting machine, the shape of the seat cover is greatly limited, and the requirement on process inspection is higher.
Disclosure of Invention
In order to solve the problems that the traditional surface cover manufacturing process is complex and the materials are wasted and the shape is limited, the surface cover is woven by a flat knitting machine by means of a seamless three-dimensional knitting technology, so that the product is directly coated on the foam without sewing a plurality of cut pieces.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of a seat cover comprises the following steps:
s1) cutting the three-dimensional data of the seat surface cover to obtain a knitted model of the cut seat surface cover;
s2) based on the knitting model of the seat surface cover obtained in the previous step, reading the knitting model by a flat knitting machine to complete weaving of the seat surface cover;
and S3) coating and fixing the woven seat surface cover on the seat foam.
Further, the step S1) of obtaining the knitted model of the cut seat cover by cutting the three-dimensional data of the seat cover includes the following steps:
s11) cutting three-dimensional data of the seat surface cover to obtain corresponding cut piece partitions, wherein the three-dimensional data comprise a seat surface cover model and a part model, the three-dimensional data of the seat surface cover is subjected to unfolding UV treatment to obtain an unfolded UV chartlet of the seat surface cover, and the edge of the unfolded UV chartlet is in a two-dimensional cut piece shape cut by the seat surface cover;
s12) calculating the shape of the cutting piece partition to obtain the knitting model of the seat surface cover.
Further, the step S2) of reading the knitting model by the flat knitting machine to complete the weaving of the seat cover based on the knitting model of the seat cover obtained in the previous step includes the following steps:
s21) obtaining a knitting model of the seat cover and importing textile software;
s22) designing a pattern structure and an edge stitching path in textile software, finishing editing a knitting program, and importing the knitting program into a flat knitting machine;
and S23) weaving the seat surface cover and the cut pieces by using a flat knitting machine according to a weaving program.
Further, the shape of the cut-parts partitions is calculated, and the obtained knitting model of the seat cover comprises:
acquiring the shape information of the two-dimensional cut piece of the seat surface cover subjected to the UV treatment and the color information of the two-dimensional cut piece of the seat surface cover;
performing parameter calculation on the two-dimensional cut piece shape information of the seat surface cover in knitting software to obtain a knitting model of the two-dimensional cut piece shape information of the seat surface cover;
performing parameter calculation on the color information of the two-dimensional cut piece of the seat surface cover in knitting software to obtain a knitting model of the color information of the two-dimensional cut piece of the seat surface cover;
the knitted models of the two-dimensional cut piece shape information and the two-dimensional cut piece color information can be combined into a knitted model of the seat cover.
Further, the flat knitting machine manufacturing the seat cover and the cut pieces according to a knitting procedure includes:
setting a knitting program according to the analyzed knitting model of the seat surface cover, hooking yarns on a needle hook, moving the yarns downwards together when the knitting needle drives the yarns, moving the cam working surface to the right, and ejecting the needle hook from the cam working surface when the cam working surface moves to the right and is limited;
completing the ferrule, and releasing the limit of the triangular working surface;
the knitting needle drives the yarn to continue moving downwards, the cam working surface moves towards the right, and when the knitting needle and the cam working surface simultaneously contact with a limiting position, one-time loop looping is completed. Further, the division of the edge portion of the panel segment is determined during the UV processing.
Further, the edge path generated by the spread UV treatment is woven by a flat knitting machine.
Further, the edges of the face cover and the cut pieces are embedded at the edges of the seat foam.
Further, the flat knitting machine is a computerized flat knitting machine.
The beneficial technical effects are as follows:
the seat cover prepared by the method is characterized in that on the basis of traditional leather and artificial leather sewing, a fabric is innovatively selected as a seat cover material and a flat knitting machine weaving fabric to complete an integrated cover design, and the seat surface and the functional blocks are comprehensively considered, so that the design of the cover pattern and the structure are purposefully designed. When industrial production and manufacturing, need not to tailor to face cover or cut-parts and sew up for face cover or cut-parts have three-dimensional profile, have laminated the part surface, have accomplished no visible gap, and multiple flower type structure combines naturally, and effects such as logo sign integrated into one piece have increased the wholeness and the richness of face cover. In the development process, the intervention of a computer program replaces manual board beating, the accuracy of a finished product is improved, the trial and error cost is reduced by the integrated forming process, and the development efficiency is greatly improved. In the future production, the production time and cost of the single facial mask can be greatly reduced, and a large number of steps related to manual manufacturing can be omitted. Meanwhile, the invention greatly reduces the manufacturing process and the raw material transportation cost, increases the richness and the degree of freedom of design, and has better knitting cost and process optimization effect than the fabrics woven by a circular knitting machine.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive effort.
FIG. 1 illustrates a flow chart of the steps of a method of making a seat cover in accordance with the present invention.
FIG. 2 is a flow chart illustrating the steps of the present invention for obtaining a knitted model of a tailored seat cover by tailoring three-dimensional data of the seat cover.
Fig. 3 illustrates a flow chart of the weaving step of the seat cover which is completed by reading the knitting model by the flat knitting machine based on the knitting model of the seat cover obtained in the previous step.
Fig. 4 is a schematic view illustrating a step of manufacturing a seat cover and a cut segment according to a knitting process in the flat knitting machine of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating steps of a method for manufacturing a seat cover according to an embodiment of the present invention, and as shown in fig. 1, the method for manufacturing a seat cover according to the present invention includes the following steps:
s1) cutting three-dimensional data of the seat surface cover to obtain a knitted model of the cut seat surface cover;
s2) reading the knitting model by the flat knitting machine to complete the weaving of the seat surface cover based on the knitting model of the seat surface cover obtained in the previous step;
and S3) coating and fixing the woven seat surface cover on the seat foam.
FIG. 2 illustrates a flow chart for obtaining a tailored seat cover knit model by tailoring three-dimensional data of the seat cover, according to one embodiment of the present invention, as shown in FIG. 2. The following further describes the specific steps of obtaining the knitted model of the cut seat cover by cutting the three-dimensional data of the seat cover with reference to fig. 2.
S1) cutting the three-dimensional data of the seat surface cover to obtain a knitted model of the cut seat surface cover.
The corresponding cutting piece partition is obtained by cutting the three-dimensional data of the seat surface cover, the three-dimensional data comprise a seat surface cover model and a part model, and texture coordinates, namely UV coordinates, are adopted by the three-dimensional data of the seat surface cover model and the part model. Wherein, carry out exhibition UV to the three-dimensional data of seat face cover and handle, obtain the UV picture of the seat face cover that expandes, the border of the UV picture of expandes is the two-dimensional cut-parts shape that seat face cover cut out, exhibition UV handles produced edge route and weaves through flat knitting machine.
In one embodiment, the three-dimensional data processing of the seat cover includes developing a UV process using CAD or three-dimensional modeling software, such as AutoCAD, 3d max, maya, rhino, etc., and the three-dimensional data of the seat cover includes a modeling file of the seat cover. The developed UV map can be saved as a tga file via the three-dimensional modeling software described above for other software processes to read.
And calculating the shape of the cutting piece partition to obtain a knitting model of the seat cover.
In one embodiment, the UV chartlet with the format of tga obtained in the previous step is guided into Photoshop to extract the wire frame and the shape of the UV chartlet, and then corresponding textile software is opened, so that the textile software automatically generates a knitting model corresponding to the seat cover.
Fig. 3 illustrates a flow chart of the flat knitting machine reading the knitting model to complete the weaving of the seat cover based on the knitting model of the seat cover obtained in the previous step according to an embodiment of the present invention, as shown in fig. 3. The specific steps of the flat knitting machine reading the knitting model to weave the seat cover based on the knitting model of the seat cover obtained in the previous step are further described below with reference to fig. 3.
S21) obtaining a knitting model of the seat cover and importing the knitting model into textile software;
s22) designing a pattern structure and an edge stitching path in textile software, finishing editing a knitting program, and importing the knitting program into a flat knitting machine;
s23) weaving a seat surface sleeve and cutting pieces by the flat knitting machine according to a weaving program, wherein the flat knitting machine is a computerized flat knitting machine.
The shape of cutting-parts subregion is solved, and the knitting model who reachs the seat cover includes:
acquiring the shape information of the two-dimensional cut piece of the seat surface cover subjected to the UV treatment and the color information of the two-dimensional cut piece of the seat surface cover;
performing parameter calculation on the two-dimensional cut piece shape information of the seat surface cover in knitting software to obtain a knitting model of the two-dimensional cut piece shape information of the seat surface cover;
performing parameter calculation on the color information of the two-dimensional cut piece of the seat surface cover in knitting software to obtain a knitting model of the color information of the two-dimensional cut piece of the seat surface cover;
the knitted models of the two-dimensional cut piece shape information and the two-dimensional cut piece color information can be combined into a knitted model of the seat cover.
Fig. 4 is a schematic view illustrating a step of manufacturing a seat cover and a cut segment according to a weaving process in the flat knitting machine of the present invention, as shown in fig. 4. The specific steps of the flat knitting machine for manufacturing the seat cover and the cut pieces according to the knitting procedure will be further described with reference to fig. 4.
The flat knitting machine makes seat cover and cut-parts according to weaving procedure and includes:
setting a knitting program according to the analyzed knitting model of the seat surface cover, hooking yarns on a needle hook, moving the yarns downwards together when the knitting needle drives the yarns, moving the cam working surface to the right, and ejecting the needle hook from the cam working surface when the cam working surface moves to the right and is limited;
completing the ferrule, and releasing the limit of the triangular working surface;
the knitting needle drives the yarn to continuously move downwards, the cam working surface moves towards the right, and when the knitting needle and the cam working surface simultaneously contact with a limit, one-time loop looping is completed.
The division of the edge portion of the panel segment is determined during the UV processing.
The edge of the face cover is embedded at the edge of the seat foam.
In conclusion, in the step of cutting the three-dimensional data of the seat cover and obtaining the knitted model of the cut seat cover, the three-dimensional data of the seat cover is subjected to UV (ultraviolet) processing to obtain a UV chartlet corresponding to the unfolding of the seat cover, and the shape information and the color information of the unfolded UV chartlet are solved to obtain the knitted model of the seat cover; on the basis of the knitting model of the seat surface cover obtained in the previous step, the flat knitting machine reads the knitting model to complete the weaving step of the seat surface cover, so that the design of a pattern structure and an edge sewing path in textile software is realized, the editing of a weaving program is completed, the weaving program is guided into the flat knitting machine, and the flat knitting machine weaves the seat surface cover and the cut pieces according to the weaving program; and finally, covering and fixing the woven seat surface cover on the seat foam.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" are intended to cover only the explicitly identified steps or elements as not constituting an exclusive list and that the method or apparatus may comprise further steps or elements.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention. Those skilled in the art can develop and implement the software using various existing software tools as needed.

Claims (9)

1. A preparation method of a seat cover comprises the following steps:
s1) cutting three-dimensional data of the seat surface cover to obtain a knitted model of the cut seat surface cover;
s2) reading the knitting model by the flat knitting machine to complete the weaving of the seat surface cover based on the knitting model of the seat surface cover obtained in the previous step;
and S3) coating and fixing the woven seat surface cover on the seat foam.
2. The method for preparing the seat cover according to claim 1, wherein the step S1) of obtaining the knitted model of the cut seat cover by cutting the three-dimensional data of the seat cover comprises the following steps:
s11) cutting three-dimensional data of the seat surface cover to obtain corresponding cut piece partitions, wherein the three-dimensional data comprise a seat surface cover model and a part model, the three-dimensional data of the seat surface cover is subjected to unfolding UV treatment to obtain an unfolded UV chartlet of the seat surface cover, and the edge of the unfolded UV chartlet is in a two-dimensional cut piece shape cut by the seat surface cover;
s12) calculating the shape of the cutting piece partition to obtain the knitting model of the seat surface cover.
3. The method for preparing the seat cover according to claim 2, wherein S2) based on the knitting model of the seat cover obtained in the previous step, the step of reading the knitting model by a flat knitting machine to complete weaving of the seat cover comprises the following steps:
s21) obtaining a knitting model of the seat cover and importing textile software;
s22) designing a pattern structure and an edge stitching path in textile software, finishing editing a knitting program, and importing the knitting program into a flat knitting machine;
and S23) weaving the seat surface cover and the cut pieces by using a flat knitting machine according to a weaving program.
4. The method for preparing the seat cover according to claim 3, wherein the step of calculating the shapes of the cut segment regions to obtain the knitting model of the seat cover comprises the following steps:
acquiring the shape information of the two-dimensional cutting piece of the seat surface cover subjected to UV treatment and the color information of the two-dimensional cutting piece of the seat surface cover;
performing parameter calculation on the two-dimensional cut piece shape information of the seat surface cover in knitting software to obtain a knitting model of the two-dimensional cut piece shape information of the seat surface cover;
performing parameter calculation on the color information of the two-dimensional cut piece of the seat surface cover in knitting software to obtain a knitting model of the color information of the two-dimensional cut piece of the seat surface cover;
the knitted models of the two-dimensional cut piece shape information and the two-dimensional cut piece color information can be combined into a knitted model of the seat cover.
5. The method for manufacturing the seat cover according to claim 4, wherein the flat knitting machine weaving the seat cover and the cut-parts according to a weaving procedure comprises:
setting a knitting program according to the analyzed knitting model of the seat surface cover, hooking yarns on a needle hook, moving the yarns downwards together when the knitting needle drives the yarns, moving the cam working surface to the right, and ejecting the needle hook from the cam working surface when the cam working surface moves to the right and is limited;
completing the ferrule, and releasing the limit of the triangular working surface;
the knitting needle drives the yarn to continue moving downwards, the cam working surface moves towards the right, and when the knitting needle and the cam working surface simultaneously contact with a limiting position, one-time loop looping is completed.
6. The method of manufacturing a seat cover according to claim 5, wherein the division of the edge portions of the cut segment regions is determined during the UV development treatment.
7. The method of making a seat cover according to claim 6, wherein the edge path created by the stretching UV treatment is knitted by a flat knitting machine.
8. The method of claim 7, wherein the edges of the cover and the cut pieces are embedded at the edges of the seat foam.
9. The method of making a seat cover of claim 8, wherein the flat knitting machine is a computerized flat knitting machine.
CN202211012470.0A 2022-08-23 2022-08-23 Preparation method of seat cover Pending CN115198433A (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN104036532A (en) * 2014-05-29 2014-09-10 浙江工业大学 Clothes making method based on three-dimensional to two-dimensional clothes pattern seamless mapping
CN107025688A (en) * 2017-03-13 2017-08-08 东华大学 A kind of 3-D scanning clothes reconstruct and method for reusing
CN107527271A (en) * 2017-08-30 2017-12-29 上海西陌信息科技有限公司 A kind of implementation and system of the user terminal for designing and generating customed product
CN112131724A (en) * 2020-09-09 2020-12-25 江南大学 Three-dimensional design simulation system and method for knitted product
CN215303358U (en) * 2021-05-20 2021-12-28 维喜鞋业有限公司 Moisture-permeable waterproof shoe with single-piece type vamp
CN114703593A (en) * 2022-02-15 2022-07-05 舒茨曼座椅(宁波)有限公司 Preparation method and device of seat cover

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Application publication date: 20221018