CN111910334B

CN111910334B - Fabric warp feeding and threading method

Info

Publication number: CN111910334B
Application number: CN202010804828.8A
Authority: CN
Inventors: 蔡清来; 张英东
Original assignee: Sincetech Fujian Technology Co Ltd
Current assignee: Sincetech Fujian Technology Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2022-11-15
Anticipated expiration: 2040-08-12
Also published as: CN111910334A

Abstract

The invention discloses a fabric let-off and threading method, which comprises a warp knitting machine, warp beams, warp yarns and guide bars, wherein the warp beams are wound with the warp yarns and supply the yarns for the guide bars, each warp beam is respectively wound with only one kind of warp yarns, the warp yarns have different characteristics, at least one warp yarn of the guide bar comes from more than one warp beam, and compared with the prior art, the invention has the beneficial effects that: the warp beams are respectively wound with yarns with the characteristics of a fabric let-off and threading method, so that the warping time is saved, the warping efficiency is improved, the starting time is shortened, the warp yarns of at least one guide bar come from more than one warp beam, and the yarns with at least two characteristics are threaded on at least one guide bar, so that double-sided multi-characteristic fabrics can be produced by using fewer guide bars, the guide bar amount is saved, and the fabric thickness is not influenced.

Description

Fabric warp feeding and threading method

Technical Field

The invention relates to a fabric warp feeding and threading method, belonging to the technical field of weaving.

Background

The fabric is a flat film piece formed by fine flexible objects through crossing, winding and connecting, the woven fabric is formed by yarns with crossing relation, the knitted fabric is formed by yarns with winding relation, the non-woven fabric is formed by yarns with connecting relation, and the third fabric is formed by yarns with crossing/winding relation.

The method is called warp knitting, the fabric is called warp knitting, the machine for completing the warp knitting is called warp knitting machine, the double-sided fabric tissue produced on the double-needle bed warp knitting machine with two parallel arranged needle beds is called double-needle bed warp knitting tissue, such as rib warp flat tissue and double rib warp flat tissue which are double needle bed warp knitting tissue, besides, the double-needle bed warp knitting machine can also knit various design and color tissues, such as mesh tissue, pile tissue, spacer fabric tissue, tubular fabric tissue and the like, the structures are not only applied in decoration and industry, but also the tubular fabric tissue and the like are expanded to warp knitting seamless clothing products.

When weaving double-sided multi-feature fabrics (such as multi-color patterns, locally different elastic features, etc.), the double-sided multi-feature fabrics are usually produced on a double needle bar warp knitting machine, and two different methods are commonly used as follows:

A. during warping, each warp beam or sectional warp beam is wound with various different characteristic yarns, and various different characteristic yarns are threaded on each guide bar during warp feeding;

B. each warp beam or sectional warp beam is wound with single characteristic yarn during warping, and multiple guide bars are threaded with single characteristic yarn during warp feeding.

If the method A is adopted, a plurality of cheese with different characteristics need to be wound on each pan head during warping,

the warping stage is time-consuming and labor-consuming, and the starting time is influenced; if through the B mode, then need be equipped with a sley bar according to every characteristic yarn during threading, when actually producing two-sided many characteristics fabric, need three or more sley bars at least, it is wasted time and energy to thread the stage, not only influences the boot speed, also can influence the fineness of fabric thickness and fabric.

Disclosure of Invention

The invention aims to solve the problems and provide a fabric let-off and threading method.

In order to achieve the purpose, the invention is realized by the following technical scheme: a method for drawing in a fabric, comprising:

a. preparing for weaving: and designing the pattern of the fabric.

b. Guide bar configuration: a double-needle-bed flat warp knitting machine with two guide bars is selected for configuration, and the warp knitting machine comprises a front needle bed and a back needle bed. Wherein the two guide bars are a guide bar GB1 and a guide bar GB2 in sequence according to the arrangement position from the front needle bed to the back needle bed.

c. And (3) threading condition: and the guide bar GB1 and the guide bar GB2 are threaded in a six-thread two-space mode.

d. Weaving on a loom: and the guide bars GB1 and GB2 are used for carrying out yarn laying and looping on a front needle bed and a rear needle bed of the double-needle-bed flat warp knitting machine to form a fabric with a pattern.

Further, the warp knitting machine comprises a warp knitting machine, warp beams, warp yarns and guide bars, wherein the warp beams are wound with the warp yarns and supply the yarns for the guide bars, each warp beam is respectively wound with only one type of warp yarns, the warp yarns have different characteristics, and the warp yarns of at least one guide bar come from more than one warp beam.

Further, each of said beams totaling yarns of at least two different characteristics.

Further, the yarn is characterized by color.

Further, the beam simultaneously feeds at least one bar.

Further, the number of the guide bars is two, and one of the warp beams simultaneously supplies yarns to the two guide bars.

Further, the number of the warp beams is three.

Further, the warp knitting machine is a double-needle bed flat type warp knitting machine.

Further, the fabric is a uniform pockmark combined alternate stripe pattern fabric.

Further, the guide bars participating in let-off, threading and weaving are mainly exemplified by common guide bars, and the jacquard guide bar can also participate in let-off, threading and weaving.

Further, the yarn distinguishing features are colors, and white and black are taken as examples, but features such as materials, elasticity and the like can also be taken as the yarn distinguishing features.

Advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1. each warp beam only winds yarns with one characteristic, warping time is saved, warping efficiency is improved, and starting time is shortened.

2. The warp yarns of at least one guide bar come from more than one warp beam, so that at least one guide bar is threaded with yarns with at least two characteristics, therefore, a double-sided multi-characteristic fabric can be produced by using fewer guide bars, the guide bar amount is saved, and the fabric thickness is not influenced.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a let-off mechanism;

FIG. 2 is a schematic drawing of the guide bar and guide needle threading;

fig. 3 is a diagram of the movement of the inlay yarn of a pattern fabric.

In the figure: 1-warp beam, 2-yarn separating needle, 3-yarn separating comb, 4-elastic back beam, 5-tension rod, 6-guide bar,

61-guide needle, 7-first yarn, 8-second yarn.

Detailed Description

In order to make the technical means, creation characteristics, achievement purposes and effects of the invention easy to understand, the invention is further explained below with reference to the attached drawings.

FIG. 1 is a drawing of a let-off mechanism, and FIG. 2 is a schematic drawing of a guide bar and a guide needle threading.

Let-off refers to the process of unwinding the warp yarns on a warp beam and feeding the warp yarns into a knitting system according to the requirement of let-off quantity, and continuously knitting by a knitting machine to form a fabric.

Referring to fig. 1, each set of let-off mechanism mainly comprises a yarn spreading mechanism, a yarn tension adjusting mechanism and a looping mechanism.

The yarn unwinding mechanism mainly comprises a warp beam 1, wherein the warp beam 1 comprises a warp beam frame, warp beam rollers and sectional warp beams, namely pan heads, and in this embodiment, there are three warp beams 1, and those skilled in the art should know that, in warp knitting machines of different models, the number of warp beams 1 is different, and is not limited to three in this embodiment. The pan head is sleeved on the warp beam roller, the warp beam roller is rotatably connected with the warp beam frame, and the warp beam frame is fixed on the body of the warp knitting machine.

The yarn tension adjusting mechanism mainly comprises a yarn dividing comb 3, two elastic rear beams 4, a tension rod 5 and a spring which are arranged from top to bottom, wherein the yarn dividing comb 3 is fixed on a machine body, a yarn dividing needle 2 is installed on the yarn dividing comb 3, the two elastic rear beams 4 are connected with each other, the tension rod 5 is connected with one end of the spring, and the other end of the spring is connected with the machine body.

All let-off mechanisms share one looping mechanism, which in the present embodiment is mainly composed of two guide bars 6, it should be understood by those skilled in the art that the number of guide bars depends mainly on the machine type, the complexity of the weaving pattern, etc., and is not limited to the number of two guide bars in the present embodiment.

With reference to fig. 1 in conjunction with fig. 2, the bar 6 comprises a guide needle 61. The yarn unwound from the warp beam 1 passes through the yarn unwinding mechanism and the yarn tension adjusting mechanism and then reaches the looping mechanism, and specifically, the yarn passes through the tension rod 5 and finally passes through the yarn guide needle 61 to complete warp feeding.

Further in this embodiment, the yarns are divided into a first yarn 7 and a second yarn 8 according to different colors. Further in this embodiment the first yarns 7 are white yarns and the second yarns 8 are black yarns. Those skilled in the art will appreciate that the yarn color in this embodiment may be various, and may vary according to the number of the beams 1, and the yarn color in this embodiment is not limited to white or black.

Referring to fig. 1, the left and right warp beams 1 on the machine body only contain the first yarn 7, the yarn is unwound and passes through a yarn unwinding mechanism and a yarn tension adjusting mechanism and finally passes through a guide needle 61 to complete let-off, the left and right warp beams 1 respectively only supply yarn to one guide bar 6, the yarn is not fully penetrated, and each guide bar 6 contains a plurality of guide needles 61 and is in an empty penetrating state.

Referring to fig. 1 in conjunction with fig. 2, another warp beam 1 on the body contains only the second yarn 8, after unwinding the yarn, passes through a yarn unwinding mechanism, a yarn tension adjusting mechanism and finally passes through a guide needle 61 to complete let-off, which simultaneously feeds two guide bars 6, and the threading corresponds to a number of guide needles 61 which are still in a blank state as described above.

It will be appreciated by those skilled in the art that the yarns comprised by each beam 1 and their correspondence with the guide bar 6 are not exclusive, for example, the two left and right beams may comprise only the second yarn 8 while the other beam 1 comprises only the first yarn 7, or yarns of another color may be wound on a certain beam 1; such as another warp beam 1, can supply yarn to only one bar 6.

The weaving process is illustrated by taking the combination of uniform pits and alternate stripe patterns as an example (part of the process has no mandatory sequence):

1) Preparing for weaving: designing a pattern with uniform pits combined with alternate stripes on a computer.

2) Guide bar configuration: a two-needle bed flat warp knitting machine with two guide bars is selected, which includes a front needle bed and a back needle bed. Wherein the two guide bars are a guide bar GB1 and a guide bar GB2 in sequence according to the arrangement positions from the front needle bed to the back needle bed;

3) And (3) threading condition: the guide bars GB1 and GB2 are threaded in a six-thread two-space mode, wherein "|" represents a first yarn 7, and "+" represents a second yarn 8, and the colors of the yarns of the guide bars GB1 and GB2 are sequentially staggered and are in staggered correspondence;

4) Yarn laying number: the guide bar GB1 pad yarn number: (1-0, 0-1/1-2, 2-1) x 5/(2-1, 1-2/2-1, 1-2) x5//; the guide bar GB2 is laid up the yarn number: (1-2, 2-1/1-0, 0-1) x 5/(0-1, 1-0/0-1, 1-0) x5//;

5) Weaving on a loom: and the guide bars GB1 and GB2 are used for carrying out yarn laying and looping on the front needle bed and the rear needle bed of the double-needle-bed flat warp knitting machine to form uniform pockmark combined alternate stripe pattern fabric.

While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A method of threading a fabric, comprising:

a. preparing for weaving: designing a pattern of the fabric;

b. guide bar configuration: selecting a two-needle bed flat warp knitting machine with two guide bars for configuration, wherein the warp knitting machine comprises a front needle bed and a rear needle bed, and the guide bars GB1 and GB2 are sequentially arranged at the arrangement positions of the two guide bars from the front needle bed to the rear needle bed;

c. and (3) threading condition: the guide bar GB1 and the guide bar GB2 are threaded in a six-thread two-space mode;

d. weaving on a loom: the guide bar GB1, the guide bar GB2 all pad yarn and form a circle at the front needle bed and the back needle bed of the flat tricot machine of two-needle bed, and the guide bar GB1 pad yarn number: (1-0, 0-1/1-2, 2-1) x 5/(2-1, 1-2/2-1, 1-2) x5//; the guide bar GB2 pad yarn number: (1-2, 2-1/1-0, 0-1) x 5/(0-1, 1-0/0-1, 1-0) x5//; weaving to form uniform pocked and alternate stripe pattern fabric;

the fabric let-off and threading method comprises a warp knitting machine, warp beams, warp yarns and guide bars, wherein the warp beams are wound with the warp yarns and supply the yarns for the guide bars, each warp beam is respectively wound with only one kind of warp yarns, the warp yarns have different yarn characteristics, and the warp yarns of at least one guide bar come from more than one warp beam.

2. The method for drawing in fabric according to claim 1, wherein: the beams add up to yarns having at least two different yarn characteristics.

3. The method for drawing in fabric according to claim 1, wherein: the yarn is characterized by color.

4. The method for drawing in fabric according to claim 1, wherein: the warp beam simultaneously feeds at least one guide bar.

5. The method for drawing in fabric according to claim 4, wherein: one of the warp beams simultaneously feeds two guide bars.

6. The method for drawing in fabric according to claim 1, wherein: the number of the warp beams is three.