A method of inlaying a layer of fabric

Abstract

The application discloses a kind of layer continuous fabric's plating method, the yarn of plating group is displaced with the yarn of adjacent non-plating column, when displacing, remove the yarn corresponding to the outer surface and inner surface layer, the remaining warp yarn of interlayer is displaced, form displacement layer and non-displacement layer, after warp yarn displacement, again carry out weft insertion and beating operation, can repeat plating operation until weaving is completed.Compared with prior art plating method, the plating method of the layer continuous fabric of the application, the new warp yarn added at plating, more interlacing points with original warp yarn and weft, forms interlacing with adjacent non-plating warp, forms interlacing with weft, and the whole interlacing is more compact.Compared with actual weaving product and traditional plating layer continuous fabric, the warp and weft structure obtained by the plating method of the application is more compact, and at the same time, avoids the appearance of obvious through hole at plating of fabric.

Description

TECHNICAL FIELD

[0001] The present application relates to a weaving method of a layer-to-layer fabric, in particular to a method of adding yarns to a layer-to-layer fabric. BACKGROUND

[0002] In the prior art, if the width of a layer-to-layer fabric product is to be increased, yarns need to be added during weaving to increase the number of warp yarn columns, so as to increase the width of the layer-to-layer fabric. However, if the number of columns is increased during weaving, there will be obvious through holes on the surface of the layer-to-layer fabric at the positions where the yarns are added.

[0003] This is because, in the prior art, when the size of the fabric is to be changed, the machine is set to a flat harness state, and the corresponding number of warp yarns are directly added at the positions where the yarns are added. Then, the machine state is changed, the layers are separated, and the weft yarns are wound. The warp yarns are fixed by the weft yarns, and then the fabric is combed and the weaving is continued. The combing of the warp yarns will inevitably cause the warp yarns to be pulled. Even if the positions of the warp yarns in the left and right directions are adjusted, the warp yarns will inevitably be offset in the height direction, which will affect the flatness of the weft yarns, and finally result in obvious through holes at the positions where the yarns are added.

[0004] Therefore, the present application is developed based on the in-depth research of the present inventors. SUMMARY

[0005] Therefore, the present application provides a method of adding yarns to a layer-to-layer fabric, which solves the problem of obvious through holes on the surface of the layer-to-layer fabric after the yarns are added.

[0006] A method of adding yarns to a layer-to-layer fabric, the layer-to-layer fabric comprising an outer surface layer and an inner surface layer, a plurality of layers being formed between the outer surface layer and the inner surface layer, the layer-to-layer fabric being formed by interweaving a plurality of warp yarns and weft yarns, each of the warp yarns being arranged on a corresponding harness eye;

[0007] The method comprises the following steps:

[0008] Step S1: taking the state before the yarns are added as the initial state, a plurality of yarn-adding positions are set in the initial state, each of the yarn-adding positions is provided with a corresponding warp yarn to form a plurality of yarn-adding groups; the layer-to-layer fabric comprises a plurality of non-yarn-adding columns, the yarn-adding groups are arranged between the non-yarn-adding columns, the non-yarn-adding columns form first and second non-yarn-adding columns on both sides of each of the yarn-adding groups, and each of the first and second non-yarn-adding columns is a single column of warp yarns arranged adjacent to the yarn-adding groups;

[0009] Each of the said groups of yarns comprises one or two groups of yarns, each of the said groups of yarns comprises outer layer yarns and inner layer yarns, and spacer yarns between the outer layer yarns and the inner layer yarns, the spacer yarns comprising first hooking yarns and first non-hooking yarns arranged alternately; the first non-yarn group comprises second hooking yarns and second non-hooking yarns arranged alternately, the second non-yarn group is the same structure as the first non-yarn group, the first hooking yarns and the second hooking yarns are in the same layer of warp yarns, forming a hooking layer; the first non-hooking yarns and the second non-hooking yarns are in the same layer of warp yarns, forming a non-hooking layer, the hooking layer and the non-hooking layer are arranged alternately;

[0010] Step S2: performing hooking operation, binding the first hooking yarn to the adjacent second hooking yarn heddle, and then binding the second hooking yarn to the adjacent first hooking yarn heddle;

[0011] Step S3: moving the heddle to form an opening, and then performing weft insertion and beating-up operation.

[0012] Further, the said groups of yarns comprise two groups of yarns, namely the first group of yarns and the second group of yarns, the first group of yarns is arranged adjacent to the first non-yarn group, and the second group of yarns is arranged adjacent to the second non-yarn group, the first group of yarns and the first non-yarn group are subjected to hooking operation, and the second group of yarns and the second non-yarn group are subjected to hooking operation.

[0013] Further, when the heddle is moved for the last time before the yarn insertion, all the raised heddles are the first group of heddles, and the remaining heddles are the second group of heddles, and when the heddle is moved for the first time after the yarn insertion, the second group of heddles is raised, and the remaining heddles remain in the raised state.

[0014] Further, the said warp yarns comprise extension yarns and warp yarns, one end of the extension yarns is bound to the said heddle, and the other end of the extension yarns is bound to the said warp yarns.

[0015] Further, the said warp yarns are silicon carbide fibers / nitride silicon fibers.

[0016] Further, the steps S1-S3 are repeated to repeat the yarn insertion operation until the weaving is completed.

[0017] Compared with the existing yarn adding method, the layer-connected fabric yarn adding method has the following advantages: the layer-connected fabric woven by the method has more interlacing points of the newly added warp yarn, the original warp yarn and weft yarn, and the interlacing of the newly added warp yarn with the adjacent non-yarn-added warp yarn and weft yarn is more compact. During carding, the new warp yarn is limited by the original warp yarn from above and below, and the influence on the warp and weft yarns is reduced. Compared with the actual woven product and the traditional layer-connected fabric with added yarn, the warp and weft yarn structure woven by the yarn adding method is more compact, and the fabric at the yarn adding position has no obvious through holes and no obvious yarn adding marks, i.e., no obvious through holes. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The warp yarn distribution diagram of the layer-connected fabric in the initial state of yarn adding in the application;

[0019] Figure 2 The diagram of moving hooks during yarn adding in the application;

[0020] Figure 3 The warp yarn distribution diagram after moving hooks during yarn adding in the application;

[0021] Figure 4 The interlacing diagram of warp and weft yarns after beating-up during yarn adding in the application.

[0022] Figures 2-4 In the diagram, the black circle represents the non-yarn-added warp yarn; and the white circle represents the yarn-added warp yarn. Figures 2-4 In the diagram, the same vertical line represents the warp yarn in the same column.

[0023] Figure 4 In the diagram, the horizontal line represents the weft yarn.

[0024] In the diagram,

[0025] Yarn adding position a; yarn adding group 1;

[0026] First non-yarn-added column 21; second outer surface layer yarn 211;

[0027] Second inner surface layer yarn 212; second non-yarn-added column 22;

[0028] First outer surface layer yarn 31; first inner surface layer yarn 32;

[0029] First moved hook yarn 321; first non-moved hook yarn 322;

[0030] Second moved hook yarn 41; second non-moved hook yarn 42. DETAILED DESCRIPTION

[0031] In order to further explain the technical scheme of the application, the application will be described in detail through specific embodiments.

[0032] This invention discloses a method for adding yarn to a layered fabric. The layered fabric includes an outer layer and an inner layer, with several partitions formed between the outer layer and the inner layer. The layered fabric is formed by interlacing warp and weft yarns, forming several rows of warp yarns. Each row of yarns includes several warp yarns arranged sequentially from top to bottom. Each warp yarn is hung on a heddle eye at a corresponding height. Typically, the heddle wires on the heddle frame have several heddle eyes of different heights, and the yarns in the same row are sequentially threaded onto heddle eyes of different heights on the same heddle wire.

[0033] The yarn-adding method includes the following steps:

[0034] Step S1: As Figure 1 The initial state is the state before the yarn addition. In the initial state, there are several yarn addition positions a, and each yarn addition position a is provided with warp yarns to form several yarn addition groups 1. The layered fabric includes several non-yarn addition columns. The yarn addition groups 1 are arranged alternately between the non-yarn addition columns. The non-yarn addition columns form a first non-yarn addition column 21 and a second non-yarn addition column 22 on both sides of each yarn addition group 1. The first non-yarn addition column 21 and the second non-yarn addition column 22 are both single warp yarns arranged adjacent to the yarn addition groups 1.

[0035] Each yarn-adding group 1 includes one or two rows of yarn-adding columns, each of which includes a first outer surface yarn 31 and a first inner surface yarn 32, and a first interlayer yarn located between the first outer surface yarn 31 and the first inner surface yarn 32, such as... Figure 2 As shown, the first interlayer yarn includes a first hook yarn 321 and a first non-hook yarn 322 arranged alternately.

[0036] The first non-added yarn row 21 includes a second outer surface yarn 211 and a second inner surface yarn 212, and a second interlayer yarn located between the second outer surface yarn 211 and the second inner surface yarn 212. The second interlayer yarn includes a second hook yarn 41 and a second non-hook yarn 42 arranged alternately. The second non-added yarn row 22 has the same structure as the first non-added yarn row 21, that is, the second non-added yarn row 22 includes a second outer surface yarn 211 and a second inner surface yarn 212, and a second interlayer yarn located between the second outer surface yarn 211 and the second inner surface yarn 212. The second interlayer yarn includes a second hook yarn 41 and a second non-hook yarn 42 arranged alternately.

[0037] The first hook yarn 321 and the second hook yarn 41 are located on the same layer of warp yarns to form a hook layer; the first non-hook yarn 322 and the second non-hook yarn 42 are located on the same layer of warp yarns to form a non-hook layer, and the hook layer and the non-hook layer are arranged alternately.

[0038] Step S2: Perform the hook shifting operation, such as... Figure 2The first hooking yarn 321 is fixed to the eyelet of the second hooking yarn 41 arranged adjacently, and the second hooking yarn 41 is fixed to the eyelet of the first hooking yarn 321 arranged adjacently, and then the hooking is performed as shown in Figure 3

[0039] Step S3: the moving of the heald frame to form an opening is performed as shown in Figure 4

[0040] Compared with the prior art, the new warp yarn added in the present application is more interwoven with the original warp yarn and weft yarn, and is interwoven with the adjacent non-warp yarn and weft yarn, and the overall interweaving is more compact. During carding, the new warp yarn is limited by the original warp yarn (non-warp layer) above and below, and the influence on the warp and weft yarns is also reduced. Compared with the structure of the traditional warp layer interwoven fabric, the warp and weft yarn structure obtained by the present application is more compact, and at the same time, the obvious through holes at the warp layer of the fabric are avoided, and the obvious warp layer marks of the interwoven fabric are not seen, i.e. the obvious through holes are not seen.

[0041] As a preferred embodiment, the warp layer group 1 includes two warp layer columns, i.e. a first warp layer column 11 and a second warp layer column 12, the first warp layer column 11 is arranged adjacently with the first non-warp layer column 21, the second warp layer column 12 is arranged adjacently with the second non-warp layer column 22, the hooking operation is performed between the first warp layer column 11 and the first non-warp layer column 21, and the hooking operation is performed between the second warp layer column 12 and the second non-warp layer column 22.

[0042] As a preferred embodiment, when the heald frame is moved for the last time before the warp layer, all the heald frames (moved for the last time) are the first group of heald frames, and the remaining heald frames are the second group of heald frames, and when the heald frame is moved for the first time after the warp layer, the second group of heald frames is controlled to be raised, and the remaining heald frames remain in the state of not being raised. In this way, the interweaving stability of the warp yarns can be improved.

[0043] As a preferred embodiment, the warp yarns include extension yarns and warp yarns, one end of the extension yarns is fixed to the eyelet, and the other end of the extension yarns is fixed to the warp yarns. The warp yarns are silicon carbide fibers / nitride fibers. When the silicon carbide fibers / nitride fibers are woven as warp yarns, the material itself is brittle and the cost is high. In order to facilitate weaving and save costs, the silicon carbide fibers / nitride fibers are generally connected with the extension yarns before weaving, and the fibers are indirectly connected with the machine table through the extension yarns, which can reduce the material cost and prevent the fibers from breaking to some extent.

[0044] As a preferred embodiment, the steps S1-S3 are repeated to perform the warp layer operation repeatedly.

[0045] ​​It should be noted that in the present application, the position of the added yarn can be designed according to the width dimension of the product, and the number of columns and the position of the added yarn each time can be designed according to the variation range of the width. The warp yarns of the pre-added yarn can be previously arranged on the heddle eyes, but do not participate in the heddle lifting and knitting operation before the yarn is added; or can be arranged on the corresponding heddle eyes again before the yarn is added.

[0046] The above embodiments and drawings are not limited to the knitting method of the present application, and any appropriate changes or modifications made by those skilled in the art shall be considered as not departing from the scope of the patent of the present application.

Claims

1. A method for adding yarn to a layered fabric, characterized in that: The layered fabric includes an outer layer and an inner layer, with several partitions formed between the outer layer and the inner layer. The layered fabric is formed by interlacing warp and weft yarns, with each warp yarn hanging on a corresponding heddle. The yarn-adding method includes the following steps: Step S1: Taking the state before yarn addition as the initial state, in the initial state, several yarn addition positions are set, and each yarn addition position is provided with warp yarns to form several yarn addition groups; the layered fabric includes several columns of non-yarn addition columns, and the yarn addition groups are arranged alternately between the non-yarn addition columns. The non-yarn addition columns form a first non-yarn addition column and a second non-yarn addition column on both sides of each yarn addition group. The first non-yarn addition column and the second non-yarn addition column are both single columns of warp yarns arranged adjacent to the yarn addition groups respectively; Each of the yarn-adding groups includes one or two rows of yarn-adding columns. Each yarn-adding column includes an outer layer yarn and an inner layer yarn, as well as a spacer yarn located between the outer layer yarn and the inner layer yarn. The spacer yarn includes a first hook-and-loop yarn and a first non-hook-and-loop yarn arranged alternately. The first non-yarn-adding column includes a second hook-and-loop yarn and a second non-hook-and-loop yarn arranged alternately. The second non-yarn-adding column has the same structure as the first non-yarn-adding column. The first hook-and-loop yarn and the second hook-and-loop yarn are located in the same warp layer to form a hook-and-loop layer. The first non-hook-and-loop yarn and the second non-hook-and-loop yarn are located in the same warp layer to form a non-hook-and-loop layer. The hook-and-loop layers and the non-hook-and-loop layers are arranged alternately. Step S2: Perform the hook shifting operation, tie the first hook shifting yarn to the heddle eye of the adjacent second hook shifting yarn, and then tie the second hook shifting yarn to the heddle eye of the adjacent first hook shifting yarn. Step S3: Move the heald frame to create an opening, and then perform weft insertion and weft insertion operations; The yarn-adding group includes two yarn-adding columns, namely the first yarn-adding column and the second yarn-adding column. The first yarn-adding column is arranged adjacent to the first non-yarn-adding column, and the second yarn-adding column is arranged adjacent to the second non-yarn-adding column. A hook-shifting operation is performed between the first yarn-adding column and the first non-yarn-adding column, and a hook-shifting operation is performed between the second yarn-adding column and the second non-yarn-adding column. When the heald frame is moved for the last time before adding yarn, all the heald frames that are lifted are the first group of heald frames, and the remaining heald frames that are not lifted are the second group of heald frames. When the heald frame is moved for the first time after adding yarn, the second group of heald frames is lifted, and the remaining heald frames remain in the unlifted state.

2. The method for adding yarn to a layered fabric as described in claim 1, characterized in that: The warp yarn includes an extension thread and a warp yarn, one end of the extension thread is fixed to the heald eyelet, and the warp yarn is fixed to the other end of the extension thread.

3. The method for adding yarn to a layered fabric as described in claim 1, characterized in that: The warp yarn is made of silicon carbide / silicon nitride fiber.

4. The method for adding yarn to a layered fabric as described in claim 1, characterized in that: Repeat steps S1-S3 to add yarn until the weaving is complete.

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