阅读说明：本技术 拉链带、拉链、应用拉链的物品及拉链带制作设备 (Zipper strip, zipper, article using zipper and zipper strip manufacturing equipment ) 是由 许道友 朱松峰 杨英鹏 于 2021-09-27 设计创作，主要内容包括：本申请实施例中提供了一种拉链带、拉链、应用拉链的物品及拉链带制作设备。其中,拉链带包括链带本体和固定在链带本体的侧边上的拉链牙,链带本体包括第一层链带和第二层链带。该第一层链带和第二层链带均沿拉链带长度方向延伸。第一层链带的第一侧边固定有拉链牙。第二层链带与第一层链带相对设置。第二层链带的远离拉链牙一侧的侧边与第一层链带的第二侧边通过缝合线连接。采用本申请中的方案,在织造工序就可以一次性完成具有双层结构的拉链带,工艺步骤简单,便于实现批量化稳定生产。(The embodiment of the application provides a zipper strip, a zipper, an article using the zipper and zipper strip manufacturing equipment. The zipper belt comprises a zipper belt body and zipper teeth fixed on the side edge of the zipper belt body, and the zipper belt body comprises a first layer of zipper belt and a second layer of zipper belt. The first layer of chain belts and the second layer of chain belts extend along the length direction of the zipper belt. The first side edge of the first layer of chain belt is fixed with zipper teeth. The second layer of chain belt is opposite to the first layer of chain belt. The side edge of the second layer of chain belt far away from the zipper teeth is connected with the second side edge of the first layer of chain belt through a sewing thread. Adopt the scheme in this application, just can once only accomplish the zipper strip that has bilayer structure weaving the process, the processing step is simple, is convenient for realize the stable production of batch.)

1. A fastener tape for forming a slide fastener (200), the fastener tape (100) comprising a fastener tape body (10) and fastener elements (20) fixed on side edges of the fastener tape body (10), characterized in that the fastener tape body (10) comprises:

a first layer of chain belt (11) extending along the length direction of the zipper tape (100), wherein the zipper teeth (20) are fixed on the first side edge of the first layer of chain belt (11);

the second layer of chain belt (12) extends along the length direction of the zipper tape (100), the second layer of chain belt (12) is arranged opposite to the first layer of chain belt (11), and the side edge of the second layer of chain belt (12) far away from the zipper teeth (20) is connected with the second side edge of the first layer of chain belt (11) through a sewing thread (15);

the chain belt body (10) is constructed in an integrally formed structure in which the first layer of chain belts (11) and the second layer of chain belts (12) are directly formed through a textile process.

2. The fastener tape of claim 1, wherein the width of the second layer of fastener tapes (12) is smaller than the width of the first layer of fastener tapes (11).

3. The fastener tape according to claim 1, wherein the first layer fastener tape (11) comprises a plurality of first warp threads (111) and a plurality of first weft threads (112), the first weft threads (112) and the first warp threads (111) being interwoven with each other, the second layer fastener tape (12) comprises a plurality of second warp threads (121) and a plurality of second weft threads (122), the second weft threads (122) and the second warp threads (121) being interwoven with each other, and the sewing thread (15) being interwoven with at least a part of the first weft threads (112) and at least a part of the second weft threads (122), respectively.

4. The fastener tape according to claim 3, wherein an edge of the second side edge of the first layer fastener tape (11) is a first edge (113), the first edge (113) being formed as a circular arc edge formed by the first weft thread (112) turning at the first edge (113); an edge of a side of the second layer fastener tape (12) remote from the fastener elements (20) is a second edge (123), and the second edge (123) is formed as a circular arc edge formed by the second weft (122) turning at the second edge (123).

5. The fastener tape according to claim 3, wherein the first layer fastener tape (11) comprises a first layer fastener tape main body (114), a first stitched section (115) and a first supporting section (116) which are connected in sequence in a width direction of the fastener tape body (10), the stitching thread (15) is interwoven with the first weft thread (112) of at least a part of the first stitched section (115), the first warp thread (111) is disposed in the first layer fastener tape main body (114) and the first stitched section (115), a third warp thread (117) is disposed in the first supporting section (116), the third warp thread (117) is not interwoven with the first weft thread (112), and a diameter of the third warp thread (117) is larger than a diameter of the first warp thread (111);

the second layer of chain belt (12) comprises a second layer of chain belt main body, a second sewing section and a second supporting section which are sequentially connected, the sewing thread (15) is interwoven with at least one part of second weft (122) in the second sewing section, the second warp (121) is arranged in the second layer of chain belt main body and the second sewing section, a fourth warp (124) is arranged in the second supporting section, the fourth warp (124) is not interwoven with the second weft (122), and the diameter of the fourth warp (124) is larger than that of the second warp (121).

6. The fastener tape according to claim 5, wherein a first separation section (118) is further provided between the first layer fastener tape main body (114) and the first sewing section (115), and 1-4 dents in the first separation section (118) do not penetrate the first warp thread (111); and a second isolation section is further arranged between the second layer of chain belt main body and the second sewing section, and 1-4 reed dents in the second isolation section do not penetrate through the second warp (121).

7. The fastener tape according to any one of claims 1 to 6, wherein a surface of a side of the first layer fastener tape (11) facing away from the second layer fastener tape (12) is adapted to overlap an edge portion (401) of a sewed matter (400), the first layer chain belt (11) is provided with a first sewing position (91), the second layer chain belt (12) is provided with a second sewing position (92), the first sewing position (91) and the second sewing position (92) are used for sewing the first layer chain belt (11), the second layer chain belt (12) and the sewed object (400) together, the second sewing position (92) is positioned at the side edge of the second layer of the chain belt (12) close to the zipper teeth (20) and along the width direction of the chain belt body (10), the first sewing position (91) and the second sewing position (92) are equal in distance from the fastener element (20).

8. The fastener tape according to any one of claims 1 to 6, wherein a receiving space (13) for receiving an edge portion (401) of a sewed article (400) is formed between the first layer fastener tape (11) and the second layer fastener tape (12).

9. The fastener tape according to any one of claims 1 to 6, wherein at least a portion of the fastener tape body (10) is a twill weave.

10. The fastener tape according to any one of claims 1 to 6, wherein the width of the first layer of fastener tapes (11) is an integral multiple of the width of the second layer of fastener tapes (12).

11. A fastener tape producing apparatus characterized by being used for sewing the fastener tape body (10) and the fastener elements (20) in the fastener tape (100) of any one of claims 1 to 10, characterized in that the zipper tape manufacturing equipment (300) comprises a sewing needle plate group, the sewing needle plate group comprises a first sewing needle plate (301) and a second sewing needle plate (302) which are mutually buckled, the zipper tape (100) is arranged between the first sewing needle plate (301) and the second sewing needle plate (302) in a penetrating way, a chain belt groove (3011) is arranged on the surface of the first sewing needle plate (301) which is contacted with the second layer chain belt (12), the chain belt slot (3011) penetrates the first sewing needle plate (301) along the length direction of the zipper tape (100), the second layer of link belt (12) is slidably matched with the link belt groove (3011).

12. A slide fastener comprising a first fastener tape (100), a second fastener tape (100), and a slider (201) for engaging or disengaging the first fastener tape (100) and the second fastener tape (100) with each other, characterized in that at least one of the first fastener tape (100) and the second fastener tape (100) is a fastener tape (100) according to any one of claims 1-10.

13. An article to which a zipper is applied, comprising a zipper (200) according to claim 12.

14. A method for weaving a fastener tape, for weaving the fastener tape described in claims 1 to 10, comprising:

controlling the up-and-down motion of the front heald frame and the rear heald frame through a weft lifting device, alternately weaving the first layer chain belt (11) and the second layer chain belt (12), synchronously finishing the weaving of the parts, aligned with the first layer chain belt (11), of the first layer chain belt (11) and the second layer chain belt (12), and weaving the rest part of the second layer chain belt (12) after the weaving of the first layer chain belt (11) is finished;

sewing the aligned ends of the first layer of stringers (11) and the second layer of stringers (12) with the sewing thread (15).

Technical Field

The application relates to a zipper technology, in particular to a zipper strip, a zipper, an article using the zipper and zipper strip manufacturing equipment.

Background

The zipper is a common article in daily life and is widely applied to articles such as clothes, bags and the like. Generally, a slide fastener includes a fastener tape, fastener elements fixed to the fastener tape, and a slider for coupling and decoupling the fastener elements on two fastener tapes.

A few zipper tapes in the market today are of a double-layer structure, which mainly adopts an ultrasonic wave compression technique or a die guide mode, and the two modes forcibly change a single-layer cloth tape into a double-layer tape, and fold the single-layer cloth into the double-layer tape by post-processing and other modes. The zipper tapes produced by the methods can generate folding resilience, so that the zipper tapes with a double-layer structure are difficult to apply to special clothing, bags and other products. This not only results in a time-consuming process of sewing the zipper, but also results in a large consumption of raw materials, which increases the cost of the zipper sewing process.

Disclosure of Invention

In order to solve one of the technical defects, the embodiment of the application provides a zipper tape, a zipper, an article using the zipper and zipper tape manufacturing equipment.

According to a first aspect of embodiments of the present application, there is provided a fastener tape for forming a slide fastener, the fastener tape including a fastener tape body and fastener elements fixed on a side edge of the fastener tape body, the fastener tape body including:

the first layer of chain belt extends along the length direction of the zipper belt, and the zipper teeth are fixed on the first side edge of the first layer of chain belt;

the second layer of chain belt extends along the length direction of the zipper belt, the second layer of chain belt is arranged opposite to the first layer of chain belt, and the side edge of the second layer of chain belt far away from the zipper teeth is connected with the second side edge of the first layer of chain belt through a sewing thread;

the chain belt body is constructed as an integrally formed structure in which the first layer of chain belts and the second layer of chain belts are directly formed through a textile process.

Optionally, the second layer of link belts has a width less than a width of the first layer of link belts.

Optionally, the first layer chain belt comprises a plurality of first warps and a plurality k of first wefts, the first wefts and the first warps are interwoven with each other, the second layer chain belt comprises a plurality of second warps and a plurality of second wefts, the second wefts and the second warps are interwoven with each other, and the sewing thread is interwoven with at least a part of the first wefts and at least a part of the second wefts respectively.

Optionally, an edge of the second side edge of the first layer of link belts is a first edge formed as a circular arc edge formed by the first weft yarn turning at the first edge; an edge of a side edge of the second layer of fastener tape, which is away from the fastener elements, is a second edge formed as an arc edge formed by the second weft yarn turning at the second edge.

Optionally, along the width direction of the chain belt body, the first layer of chain belt comprises a first layer of chain belt main body, a first stitched section and a first supporting section which are connected in sequence, the stitching thread is interwoven with at least a part of the first weft in the first stitched section, the first warp is arranged in the first layer of chain belt main body and the first stitched section, a third warp is arranged in the first supporting section, the third warp is not interwoven with the first weft, and the diameter of the third warp is larger than that of the first warp;

the second layer chain belt comprises a second layer chain belt main body, a second sewing section and a second supporting section which are sequentially connected, the sewing thread is interwoven with at least one part of second weft in the second sewing section, second warp is arranged in the second layer chain belt main body and the second sewing section, fourth warp is arranged in the second supporting section and is not interwoven with the second weft, and the diameter of the fourth warp is larger than that of the second warp.

Optionally, a first isolation section is further arranged between the first layer of chain belt main body and the first sewing section, and 1-4 reed dents in the first isolation section do not penetrate through the first warp thread; the second layer chain belt main part with still be provided with the second isolation section between the section is sewed up to the second, the second warp is not worn to establish by 1 ~ 4 dent in the second isolation section.

Optionally, the surface of one side of the first layer of chain belt departing from the second layer of chain belt is used for overlapping with the edge part of the sewed object, the first layer of chain belt has a first sewing position, the second layer of chain belt has a second sewing position, the first sewing position and the second sewing position are used for sewing the first layer of chain belt, the second layer of chain belt and the sewed object together, the second sewing position is located on the side edge of the second layer of chain belt close to the zipper teeth along the width direction of the chain belt body, and the first sewing position and the second sewing position are equal to the distance of the zipper teeth.

Optionally, an accommodating space for accommodating an edge portion of the sewed object is formed between the first layer of chain belt and the second layer of chain belt.

Optionally, at least a portion of the strand body is a twill weave.

Optionally, the width of the first layer of strand is an integer multiple of the width of the second layer of strand.

According to a second aspect of the embodiments of the present application, there is provided a fastener tape manufacturing apparatus for sewing the fastener tape body and the fastener elements in the fastener tape of any one of the above, the fastener tape manufacturing apparatus including a sewing needle plate group including a first sewing needle plate and a second sewing needle plate which are engaged with each other, the fastener tape being inserted between the first sewing needle plate and the second sewing needle plate, a tape groove being provided on a surface of the first sewing needle plate which is in contact with the second layer of the fastener tape, the tape groove penetrating through the first sewing needle plate in a length direction of the fastener tape, and the second layer of the fastener tape being slidably engaged with the tape groove.

According to a third aspect of the embodiments of the present application, there is provided a slide fastener including a first fastener tape, a second fastener tape, and a slider for engaging or separating the first fastener tape and the second fastener tape with each other, at least one of the first fastener tape and the second fastener tape being the fastener tape of any one of the above.

According to a fourth aspect of the embodiments of the present application, there is provided an article to which a slide fastener is applied, the article including the slide fastener described above.

According to a fifth aspect of the embodiment of the present application, there is provided a fastener tape weaving method for weaving a fastener tape of any one of the above, the method comprising:

controlling the up-and-down movement of the front heald frame and the rear heald frame through a weft lifting device, alternately weaving the first layer of chain belt and the second layer of chain belt, synchronously finishing the weaving of the parts of the first layer of chain belt and the second layer of chain belt, which are aligned with the first layer of chain belt, and weaving the rest part of the second layer of chain belt after the weaving of the first layer of chain belt is finished;

and sewing the aligned ends of the first layer of chain belts and the second layer of chain belts by using the sewing threads.

Adopt the zipper strip that provides in this application embodiment, can reach following technological effect at least:

through the technical scheme, the zipper belt with the double-layer structure can be finished at one time in the weaving process, the zipper belt does not need to be subjected to secondary treatment by other functional equipment or devices in the subsequent process, the process steps are simple, and the batch stable production is convenient to realize. Moreover, different with forming bilayer structure through folding among the prior art, because bilayer structure's of this application zipper strip is weaving direct integrated into one piece of in-process, directly pass through the stylolite at the junction of first layer chain belt and second floor chain belt and connect, need not folding, do not store stress, the bilayer structure who finally obtains is stable, and under the natural state, fold condition keeps the original state, does not kick-back, does not produce the fold, reduces the defective products and produces, can the mass stable production.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of an organization of a link belt body according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a link belt body according to an embodiment of the present disclosure;

FIG. 3 is a partial schematic view of a zipper provided in accordance with an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a zipper provided in accordance with an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view illustrating a state where a slide fastener and a workpiece are sewn according to a first embodiment of the present application;

FIG. 6 is a schematic cross-sectional view showing a state where a slide fastener and a workpiece are sewn according to a second embodiment of the present application;

FIG. 7 is a schematic view of a twill weave of a link belt body according to an embodiment of the present disclosure;

FIG. 8 is a schematic view of the structure of a zipper according to an embodiment of the present application;

figure 9 is a schematic view of a first motion step of the heald frame in the weaving process of the chain belt body according to the embodiment of the present application;

figure 10 is a schematic view of a second motion step of the heald frame in the weaving process of the link belt body according to the embodiment of the present application;

figure 11 is a schematic view of a third motion step of the heald frame in the weaving process of the chain belt body according to the embodiment of the present application;

figure 12 is a schematic view of a fourth motion step of the heald frame in the weaving process of the link belt body according to the embodiment of the present application;

FIG. 13 is a schematic structural view of a fastener tape manufacturing apparatus according to an embodiment of the present application;

FIG. 14 is an exploded schematic view of a sewing needle plate group of the fastener tape manufacturing apparatus according to the embodiment of the present application;

fig. 15 is a schematic structural view of an article to which a slide fastener is applied according to an embodiment of the present application.

Reference numerals

100-zipper strips; 10-a chain belt body; 11-a first layer of strand; 111-a first warp thread; 112-first weft; 113-a first edge; 114-a first layer of link belt bodies; 115-a first suture section; 116-a first support section; 117-third warp thread; 118-a first isolated section; 12-a second layer of strand; 121-a second warp thread; 122-second weft; 123-a second edge; 124-fourth warp; 13-a containment space; 14-a connecting portion; 15-a suture; 20-zipper teeth; 91-a first sewing position; 92-a second sewing position; 200-a zipper; 201-zipper head; 300-zipper strip manufacturing equipment; 301-a first stitch needle plate; 3011-chain belt grooves; 302-a second stitch needle plate; 303-sewing a needle; 304-ground thread crochet hook; 305-a steering wheel; 308-sewing; 309-base line; 400-articles with applied zippers; 400-sewed fabric; 401-edge portion; 402-a body portion; 2-a yarn; 3-a steering shaft; 4. 5, 6, 7, 8, 9, 10, 11-heald frames.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 1 is a schematic view of an organization structure of a fastener tape body 10 provided in an embodiment of the present application, fig. 2 is a schematic view of a cross section of the fastener tape body 10 provided in an embodiment of the present application, fig. 3 is a partial schematic view of a slide fastener 200 provided in an embodiment of the present application, and fig. 4 is a schematic view of a cross section of the slide fastener 200 provided in an embodiment of the present application, in order to be able to produce a double-layer fastener tape 100 with good quality, as shown in fig. 1 to 4, according to a first aspect of the embodiment of the present application, there is provided a fastener tape 100 for forming the slide fastener 200. The fastener tape 100 includes a fastener tape body 10 and fastener elements 20 fixed on side edges of the fastener tape body 10, the fastener tape body 10 including a first layer fastener tape 11 and a second layer fastener tape 12. The first layer fastener tapes 11 and the second layer fastener tapes 12 each extend in the longitudinal direction of the fastener tape 100. The fastener elements 20 are fixed to a first side edge of the first layer fastener tape 11. The second-layer link belt 12 is disposed opposite to the first-layer link belt 11. The side of the second layer fastener tape 12 away from the fastener elements 20 is connected to the second side of the first layer fastener tape 11 by a sewing thread 15. The sewing thread 15 participates in the weaving process of the first layer of chain belt 11 and the second layer of chain belt 12 at the same time, and connects the first layer of chain belt 11 and the second layer of chain belt 12 together to play a role of sewing. The link body 10 is constructed as an integrally formed structure directly forming the first and second layers of the links 11 and 12 through a weaving process. The first side edge is referred to as a first side edge (i.e., a side edge on which the fastener element 20 is attached, i.e., a left side edge in fig. 1) in the width direction of the first-layer fastener tape 11, and the other side edge (i.e., a side edge away from the fastener element 20, i.e., a right side edge in the drawing) is referred to as a second side edge.

The "direct forming" means that the first layer chain belt 11 and the second layer chain belt 12 are formed at one time through a single process of the weaving process, instead of forming the first layer chain belt 11 through the first process, forming the second layer chain belt 12 through the second process, and then connecting the two layer chain belts through a process of post-rework, or forming the two layer chain belts by folding the side edges of the side of the chain belt body 10 away from the fastener elements 20.

Through the technical scheme, the zipper strips 100 with the double-layer structures (the first layer of the zipper strips 11 and the second layer of the zipper strips 12) can be completed at one time in the weaving process, the zipper strips 100 do not need to be subjected to secondary treatment by other functional equipment or devices in the subsequent process (such as edge folding equipment or ultrasonic devices such as ultrasonic welding and the like for forcibly changing the single-layer zipper strips 100 into the double-layer zipper strips 100), the process steps are simple, and batch and stable production is convenient to realize. Moreover, different with forming bilayer structure through folding among the prior art, because bilayer structure's of this application zipper strip 100 is weaving direct integrated into one piece of in-process, directly pass through stylolite 15 at the junction of first layer chain belt 11 and second floor chain belt 12 and connect, need not folding, do not store stress, the bilayer structure who finally obtains is stable, under the natural state, fold condition keeps the original state, does not kick-back, does not produce the fold, reduces defective products and produces, can the mass stabilization production. Therefore, the fastener tape 100 of a double-layer structure with good quality can be produced by the above-described scheme.

Alternatively, the width of the second layer of the link belt 12 is smaller than the width of the first layer of the link belt 11. The width difference between the first layer fastener tapes 11 and the second layer fastener tapes 12 makes the sewing process of the corresponding slide fastener 200 easy to perform, for example, when sewing the fastener elements 20, since the side edges of the second layer fastener tapes 12 are spaced apart from the fastener elements 20, only the first side edges of the first layer fastener tapes 11 need to be sewn to the fastener elements 20, and the second layer fastener tapes 100 do not interfere with the sewing process of the first layer fastener tapes 100 and the fastener elements 20 due to the width difference. Moreover, when the edge portion 401 of the sewn article 400 is sewn to the fastener tape body 10, for example, fig. 5 is a schematic cross-sectional view of a sewn state of the fastener chain 200 and the sewn article 400 provided in the first embodiment of the present application, as shown in fig. 5, the sewn article 400 and the second layer fastener tape 100 are respectively located on both sides of the first layer fastener tape 100, and an overlapping width of the edge portion 401 and the fastener tape body 10 may be equal to a width of the second fastener tape 100, so that a portion of the edge portion 401 overlapping the fastener tape body 10 and the second layer fastener tape 100 are symmetrically arranged with respect to the first layer fastener tape 100, so that strength of both sides of the first layer fastener tape 100 is uniform, the sewn article 400 is enabled to be wrinkle-free during sewing, and aesthetic appearance of a final product is improved.

In one embodiment of the present application, as shown in fig. 1 and 2, the first layer link belt 11 includes a plurality of first warps 111 and a plurality of first wefts 112, and the first wefts 112 and the first warps 111 are interwoven with each other; the second layer of the link belts 12 includes a plurality of second warp threads 121 and a plurality of second weft threads 122, and the second weft threads 122 and the second warp threads 121 are interwoven with each other. The sewing thread 15 is interwoven with at least a part of the first weft thread 112 and at least a part of the second weft thread 122, respectively, so that the first layer fastener tape 100 and the second layer fastener tape 100 are joined by the sewing thread 15. The sewing thread 15 is interwoven with the first weft thread 112 once (back and forth), and the sewing thread 15 is then interwoven with the second weft thread 122 once (back and forth) next time, all the while being in interweaving, and sometimes the first weft thread 112 is not interwoven with the sewing thread 15 at times.

The first and second layer fastener tapes 100 and 100 have respective warp and weft threads, and the first weft thread 112 and the first warp thread 111 in the first layer fastener tape 100 are not interlaced with the second weft thread 122 and the second warp thread 121 in the second layer fastener tape 100, which facilitates the formation of the first and second layer fastener tapes 100 and 100 separated at the junction. Moreover, the sewing thread 15 is interwoven with only the first weft 112 and the second weft 122, not the first warp 111 and the second warp 121, on the one hand, facilitating the joining of the first layer fastener tape 100 and the second layer fastener tape 100 with a minimum width, and on the other hand, making the sewing position more flat and more aesthetically pleasing.

In order to increase the aesthetic appearance of the fastener tape 100, in one embodiment of the present application, as shown in fig. 1, the edge of the second side edge of the first layer fastener tape 11 is a first edge 113, and the first edge 113 is formed as a circular arc edge formed by the first weft thread 112 turning at the first edge 113; an edge of the side of the second-layer fastener tape 12 remote from the fastener elements 20 is a second edge 123, and the second edge 123 is formed as a circular arc edge formed by the second weft 122 turning around at the second edge 123.

During the specific weaving process of the link belt body 10, the weft yarns of the first weft yarn 112 and the second weft yarn 122 need to be reciprocated back and forth, and when the weft yarns reach the corresponding first edge 113 or the second edge 123, the weft yarns are turned around, so that the first edge 113 and the second edge 123 form a circular arc edge. The arc edge is not only beautiful, but also smooth in the sewing process, is not easy to hook with the sewed object 400 and is not easy to generate uncomfortable feeling to human body when contacting with human body.

At the time of weaving, the first weft 112 or the second weft 122 is sometimes not interlaced with the sewing thread 15 and sometimes interlaced with the sewing thread 15, in other words, the first weft 112 and the second weft 122 at some positions are sometimes not interlaced with the sewing thread 15 at the same time, and therefore the tension lines of the first weft 112 and the second weft 122 are varied during the interlacing, possibly resulting in the occurrence of an uneven surface.

Fig. 7 is a schematic view of a twill weave of the link belt body 10 according to an embodiment of the present invention, and in order to solve the above problem, in an embodiment of the present invention, as shown in fig. 1 and 7, the first layer link belt 11 includes a first layer link belt main body 114, a first stitched section 115, and a first support section 116 connected in sequence along a width direction of the link belt body 10. The first weft threads 112 extend from one end to the other end of the first layer link belt 11 in the width direction of the link belt, and are interwoven with the warp threads in the first layer link belt main body 114, the first stitched sections 115, and the first support sections 116, respectively. The sewing thread 15 is interlaced with the first weft thread 112 of at least a part of the first sewing segments 115, in other words, the sewing thread 15 is connected with the first sewing segments 115 of the first layer of the link belts 11 in particular. The first warp threads 111 are provided in the first layer link belt main body 114 and the first sewn sections 115, the first warp threads 111 are not provided in the first support sections 116, and instead, the third warp threads 117 are provided in the first support sections 116. The third warp 117 is not interwoven with the first weft 112, and the first weft 112 passes over or under the third warp 117. The diameter of the third warp yarn 117 is larger than the diameter of the first warp yarn 111. "the third warp 117 is not interwoven with the first weft 112" means that the first weft 112 passes over or under the third warp 117, and the first weft 112 exerts no force on the third warp 117.

The second layer chain belt 12 includes a second layer chain belt main body, a second sewing section and a second supporting section which are connected in sequence. The second weft threads 122 extend from one end to the other end of the second layer of the link belt 12 in the width direction of the link belt, and are interwoven with the warp threads in the second layer of the link belt main body, the second stitched section, and the second support section, respectively. The sewing thread 15 is interlaced with the second weft 122 of at least a part of the second sewing segment, in other words, the sewing thread 15 is connected with the second sewing segment of the second layer fastener tape 12 in particular. The second warp threads 121 are disposed in the second layer chain belt main body and the second sewing segment, the second warp threads 121 not disposed in the second supporting segment, and instead, the fourth warp threads 124 are disposed in the second supporting segment. The fourth warp 124 is not interwoven with the second weft 122. The diameter of the fourth warp thread 124 is larger than the diameter of the second warp thread 121. "the fourth warp 124 is not interwoven with the second weft 122" means that the second weft 122 passes over or under the fourth warp 124, and the second weft 122 exerts no force on the fourth warp 124.

In the above technical solution, since the supporting section is provided next to the sewing section, and the thicker third warp 117 or fourth warp 124 is provided in the supporting section, the strength is higher, and the supporting section can play a supporting role, resist the changed tension of the first weft 112 and the second weft 122, and prevent the connecting position of the first layer fastener tape 100 and the second layer fastener tape 100 from being uneven. In addition, the third warp 117 and the fourth warp 124 can also play a role of separation, so that peripheral yarns are prevented from being influenced in the process that the sewing thread 15 is interwoven with the first layer zipper tape 100 and the second layer zipper tape 100, and defective products such as heavy yarns or skip yarns are prevented from occurring.

The position tension value that the weft was at the edge turn around (being first support section 116 and the second support section) of keeping away from the side of zip fastener tooth 20 department, the position tension value of turn around is great, in the above-mentioned technical scheme, through setting up the support section that intensity is bigger next to the suture section department that is provided with stylolite 15, bears this tension, prevents that tension from transmitting stylolite 15 department, lets stylolite 15 take place to shift, causes bad products such as hourglass knit to produce.

Alternatively, the third warp 117 and the fourth warp 124 may use a covering material.

In order to improve the surface appearance quality of the joint of the first layer chain belt main body 114 and the second layer chain belt main body, a first isolation section 118 is further arranged between the first layer chain belt main body 114 and the first sewing section 115, 1-4 reed dents in the first isolation section 118 do not penetrate through the first warp 111, and optionally 2 reed dents do not penetrate through the warp; still be provided with the second between second layer chain belt main part and the second section of sewing up and keep apart the section, the warp 121 is not worn to establish by 1 ~ 4 dent in the second isolation section, and optionally, warp is not worn to establish by 2 dents. The reed dent is one of the main components on the loom, shaped like a comb, and is used to determine the density of the warp yarns, maintain the position of the warp yarns, and tighten the weft yarns.

The sewing thread 15 is interlaced with the first weft 112 and the second weft 122, and then contraction occurs at the joint of the first layer fastener tape 11 and the second layer fastener tape 12, so that the first warp 111 and the second warp 121 are too tight, which may cause a rugged appearance.

In the above-described technical solution, the first sewing segment 115 and the first layer chain belt body 114 can be separated by the first separation segment 118 without passing the warp threads through the plurality of empty dents, and the second sewing segment and the second layer chain belt body can be separated by the second separation segment, thereby preventing the first layer chain belt 11 and the second layer chain belt 12 from being kept flat on the loom.

In the present application, there is no limitation on how the sewn article 400 is sewn to the fastener tape body 10, and in the first embodiment, as shown in fig. 5, a surface of the first layer fastener tape 11 on a side facing away from the second layer fastener tape 12 is used to overlap with the edge portion 401 of the sewn article 400. The first layer fastener tape 11 is sandwiched between the second layer fastener tape 12 and the material to be sewn 400. The first layer of chain belts 11 are provided with a first sewing position 91, the second layer of chain belts 12 are provided with a second sewing position 92, and the first sewing position 91 and the second sewing position 92 are used for sewing the first layer of chain belts 11, the second layer of chain belts 12 and the sewed object 400 together. The second sewing position 92 is located on the side of the second layer fastener tape 12 near the fastener element 20. The first sewing position 91 and the second sewing position 92 are equidistant from the fastener elements 20 in the width direction of the fastener tape body 10. In other words, the sewing thread is directly inserted through the material to be sewn 400, the first layer fastener tapes 11, and the second layer fastener tapes 12 in this order, and the first layer fastener tapes 11, the second layer fastener tapes 12, and the material to be sewn 400 are sewn together.

Because the sewed object 400 and the second layer of chain belt 12 are not on the same side of the first layer of chain belt 11, the sewed object 400 and the second layer of chain belt 12 form a symmetrical structure relative to the first layer of chain belt 11, thereby solving the problem of poor strength existing at two sides of the zipper tape 100 in the prior art, enabling the sewed object 400 to be free of wrinkles in the sewing process, and improving the aesthetic property of the final product.

Fig. 6 is a schematic cross-sectional view illustrating a state where the slide fastener 200 is sewn to the sewing object 400 according to the second embodiment of the present invention, and in the second embodiment, as shown in fig. 6, an accommodating space 13 for accommodating an edge portion 401 of the sewing object 400 is formed between the first layer fastener tape 11 and the second layer fastener tape 12. The edge part 401 of the sewed object 400 is clamped between the first layer of chain belt 11 and the second layer of chain belt 12, the second layer of chain belt 12 is clamped between the edge part 401 of the sewed object 400 and the body part 402, and meanwhile, the connecting part 14 between the first layer of chain belt 11 and the second layer of chain belt 12 can also serve as a wrapping edge of the zipper 200, so that the traditional zipper 200 wrapping edge is omitted, the sewing process is further simplified, and the sewing cost is reduced.

In one embodiment of the present application, as shown in fig. 7, at least a part of the link belt body 10 has a twill weave. Optionally, the first layer of chain belt body 114 and the second layer of chain belt body are twill weave respectively, and the grains show about a plurality of "W" shapes, so that the appearance is better.

In one embodiment of the present application, the width of the first-layer fastener tape 11 is an integral multiple of the width of the second-layer fastener tape 12. Alternatively, the ratio of the width of the first-layer link belt 11 to the width of the second-layer link belt 12 is 2:1 or 3: 1.

Used yarn raw materials of first layer chain belt 11 and second floor chain belt 12 in this application, linear density etc. are the same, and basic decorative pattern is twill weave moreover, and basic unit decorative pattern can influence the width of zipper strip 100, because first layer chain belt 11 and second floor chain belt 12 are integrated into one piece structure for the width of first layer chain belt 11 is the integral multiple of the width of second floor chain belt 12.

According to a second aspect of the embodiment of the present application, there is provided a fastener tape manufacturing apparatus 300 for sewing the fastener tape 100 provided in any one of the above embodiments, specifically, for sewing the fastener tape body 10 and the fastener elements 20, and sewing the fastener elements 20 to the fastener tape body 10. Fig. 13 is a schematic structural view of a fastener tape manufacturing apparatus 300 according to an embodiment of the present application, and as shown in fig. 13, the fastener tape manufacturing apparatus 300 includes a fastener tape 100 driving member and a sewing needle plate group. The fastener strip 100 driving element is used to drive the fastener strip 100 to be fed along the length direction of the fastener strip 100. Fig. 14 is an exploded schematic view of a sewing needle plate group of a fastener tape manufacturing apparatus 300 according to an embodiment of the present application, and as shown in fig. 14, the sewing needle plate group includes a first sewing needle plate 301 and a second sewing needle plate 302 that are engaged with each other. The fastener tape 100 is inserted between a first stitch needle plate 301 and a second stitch needle plate 302. The fastener tape manufacturing apparatus 300 can sew a pair of fastener elements to a pair of fastener tape bodies 10.

As shown in fig. 13, the fastener tape manufacturing apparatus 300 further includes a sewing needle 303, a ground thread looper 304, and a steering wheel 305. The sewing needle plate group is provided with a sewing needle hole, a sewing needle 303 is arranged above the sewing needle plate group, an upper sewing thread 308 penetrates through the sewing needle 303, a bottom thread crochet needle 304 is arranged below the sewing needle plate group, and a bottom thread 309 penetrates through the bottom thread crochet needle 304. In the sewing process, under the action of the driving element of the zipper tape 100, two zipper tape bodies 10 enter the sewing needle plate set of the zipper tape manufacturing apparatus 300 by the steering wheel 305, the upper sewing thread 308 is driven by the sewing needle 303, the bottom thread crochet needle 304 drives the bottom thread 309, and a pair of zipper teeth are sewn on the pair of zipper tape bodies 10 to form the zipper 200 with the double-layer structure of the zipper teeth 20.

In order to facilitate the sewing of the fastener tape body having the double-layer structure, as shown in fig. 14, a fastener tape groove 3011 is provided on a surface of the first sewing needle plate 301 contacting the second layer fastener tape 12, and the fastener tape groove 3011 penetrates the first sewing needle plate 301 in a longitudinal direction of the fastener tape 100. The second layer of links 12 slidably engage the link slots 3011. The width and depth of the fastener tape slot 3011 are adapted to the second layer fastener tape 12 of the fastener tape body 10. When sewing the chain belt body 10 and the fastener teeth 20, the second layer of chain belt 12 can just smoothly pass through the chain belt groove 3011, so that the chain belt body 10 can be limited between the first sewing needle plate 301 and the second sewing needle plate 302 in the width direction of the fastener belt 100, and the problem that the sewing of the chain belt body 10 and the fastener teeth 20 is affected due to the fact that the thickness of the left side and the right side of the fastener belt 100 is inconsistent in the production process can be solved. "left and right" refers to the width direction of the fastener tape 100.

According to a third aspect of an embodiment of the present application, there is provided a zipper 200. As shown in fig. 8, the slide fastener 200 includes a first fastener tape 100, a second fastener tape 100, and a slider 201 for coupling or separating the first fastener tape 100 and the second fastener tape 100 to or from each other. At least one of the first fastener strip 100 and the second fastener strip 100 is the fastener strip 100 provided by any of the embodiments described above.

The zipper 200 of the application has the advantages that the zipper belt body 10 on the zipper belt 100 has the double-layer structure, so that the zipper has higher rigidity and strength, the zipper is convenient to form a symmetrical structure with the sewed object 400, the generation of wrinkles of the sewed object 400 (such as cloth) can be effectively prevented, and the attractiveness of corresponding products is improved.

The embodiment also provides an article 400 using the zipper, which adopts the zipper 200 provided in any one of the above contents. The present embodiment provides an article having the same technical effects as the above-described slide fastener 200. The article 400 to which the slide fastener is applied is the sewn article 400 described above. The articles can be bedding such as clothes, bags, tents, quilt cover pillowslip, daily necessities such as finishing bags, and interior articles such as automobile seat covers.

For example: the article is a piece of clothing (an article 400 using a zipper as shown in fig. 15), the piece of clothing has at least one opening, two side portions of the opening are used as article bodies, and opposite side edges of the two side bodies are used as edge portions 401 for connecting with the first layer fastener tapes 11 and the second layer fastener tapes 12 in the zipper 200. By sewing the first layer of chain belts 11 and the second layer of chain belts 12 with the edge portion 401 of the clothing, the double-layer structure has better rigidity and strength, so that the generation of wrinkles of the sewed object 400 (such as cloth) can be effectively prevented, and the aesthetic property of the corresponding product is improved.

Fig. 9 is a schematic view of a first moving step of a heald frame in a weaving process of a chain belt body 10 provided in the embodiment of the present application, fig. 10 is a schematic view of a second moving step of the heald frame in the weaving process of the chain belt body 10 provided in the embodiment of the present application, fig. 11 is a schematic view of a third moving step of the heald frame in the weaving process of the chain belt body 10 provided in the embodiment of the present application, and fig. 12 is a schematic view of a fourth moving step of the heald frame in the weaving process of the chain belt body 10 provided in the embodiment of the present application.

According to a fifth aspect of the embodiment of the present application, there is provided a fastener tape weaving method for weaving a fastener tape of any one of the above. The method comprises the steps of controlling the up-and-down movement of front and rear heald frames through a weft lifting device, alternately weaving a first layer of chain belt 11 and a second layer of chain belt 12, and synchronously finishing the weaving of the parts, aligned with the first layer of chain belt 11, of the first layer of chain belt 11 and the second layer of chain belt 12; weaving the rest part of the second layer of chain belts 12 after the weaving of the first layer of chain belts 11 is finished; the aligned ends of the first and second layers of links 11 and 12 are sewn with a sewing thread 15.

The movement path of the heald frames in a particular weaving process is not limited in this application. In one embodiment, as shown in fig. 9 to 12, yarns 2 of various functional materials are fed into a lifting device of a loom through a steering shaft 3, and are moved up and down regularly by a heald frame 4, a heald frame 5, a heald frame 6, a heald frame 7, a heald frame 8, a heald frame 9, a heald frame 10 and a heald frame 11, so that a chain belt body 10 having a double-layer structure is woven. In conjunction with the weaving process diagram shown in fig. 7, a part of the moving process of the heald frame is shown in fig. 9 to 12, and the weaving of the chain belt body 10 having the double-layer structure of the final product is completed. In some of the moving steps, as shown in fig. 9, when weaving the second layer of chain belt 12, the heald frames 4, 8 are raised, and the heald frames 5, 6, 7, 9, 10, 11 are lowered; as shown in fig. 10, when weaving the first layer of the chain belt 11, the heald frames 4 and 8 are not changed, the heald frames 5, 6, 9 and 10 are raised, and the heald frames 7 and 11 are sunk at the lower part; as shown in fig. 11, when the second layer of chain belt 12 is woven continuously, the heald frames 5 and 9 are not changed, and the heald frames 4, 6, 7, 8, 10 and 11 are sunk at the lower part; as shown in fig. 12, when the first layer of the link belt 11 is woven, the heald frames 5, 9, 6, 10 are unchanged, and the heald frames 4, 7, 8, 11 are raised.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.