JPH08100338A - Thread winding method and thread winding device - Google Patents

Abstract

(57) [Abstract] [Purpose] A method of winding a yarn, which does not impair the original properties of the yarn, by sufficiently suppressing the fluff of a yarn such as a wool formed by including short-fiber wool. A winding device is provided. [Structure] A yarn winding method is a method of running a yarn, applying steam to the yarn, nipping the yarn before and after the yarn to perform false twisting, and then winding the yarn. The yarn winding device is a yarn winding device that unwinds the yarn wound around the yarn supply package 31 and the like and winds it around the package 21 and the like. An injection nozzle 24 is provided, a steam source 29 is connected to the nozzle, and a nip type false twisting means 26 for nipting a yarn to perform false twisting is provided before and after the nozzle 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding method and a yarn winding device in a rewinding process such as a winding unit of an automatic winder, and more particularly to a device capable of suppressing generation of fluff.

[0002]

BACKGROUND OF THE INVENTION Wool is an important fiber raw material and is of many types. This wool is formed into wool by itself or by blending with other animal hair or blending with synthetic fibers such as polyester and acrylic. This yarn is roughly classified into fibers with a uniform length, and the fibers are stretched in parallel and have a very glossy surface. There are two types of woolen yarn with a lot of fluff. That is, the woolen yarn is used as a raw material for a considerably short length, and in the spinning process, a well-balanced web that is sufficiently opened with a card is divided into tapes, and the resulting webs are crushed and rolled. And, there are many fluffs on the surface of the yarn, the fibers have a relatively disordered arrangement, and the count is thick, which is used for thick fabrics such as over cloth and blankets.

The reason why the woolen yarn has many fluffs is that it takes several winding steps before the yarn is formed.
For example, after the ring spinning process, there is a rewinding process using an automatic winder to remove a defective portion of a single yarn and finish it into a cone of about 1 kilogram. Further, there is also a rewinding process in which the single yarns are aligned and wound even in the compounding process. Even in the twisting process, there is a rewinding process in which the twisted yarn is wound and then wound.

In the rewinding process, a tenser is used because desired processing cannot be performed unless a predetermined thread tension is applied to the traveling thread. Further, various yarn guides other than the tensor are provided in the yarn path for processing the unwound yarn. Each time the yarn passes through the tensor or the yarn guide, the yarn is subjected to friction. As a result, the number of fluffs tends to increase each time the rewinding process is performed. If the rewinding process is repeated many times, the number of fluffs will continue to increase.

[0005]

In particular, the above-mentioned woolen yarn contains short fibers, fluff is likely to be generated, and it is tingling when it touches human skin, so that it has a peculiar feel peculiar to wool. It had limited uses. As a winding method and winding device for suppressing the generation of fluff with respect to general spun yarn such as cotton spun yarn, a swirling airflow jet nozzle of air is provided in the yarn path, and false fluffing is performed in which false twist is applied to wind the fluff. Those that perform processing are known. Then, in order to maintain the fluff suppressing effect, it has been proposed to add water to the jet air to humidify the yarn. However, even if fluff is suppressed by using a swirling air current injection nozzle of air or humidified air, it is not sufficient to suppress fluff such as woolen yarn containing short fibers. The fluff could not be suppressed without impairing the plump feel.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a yarn such as a wool yarn containing wool of short fibers. An object of the present invention is to provide a yarn winding method and a yarn winding device that sufficiently suppress fluff and do not impair the original properties of the yarn.

[0007]

[Means for Solving the Problems] A method of winding a yarn which solves the above problems is to run a yarn, apply steam to the yarn, and nip the yarn before and after the yarn to perform false twisting. The gist is to wind the yarn. Especially after applying steam to the yarn,
It is preferable to nip the yarn to apply false twist, and the twist direction of the false twist is preferably a direction in which the yarn upstream of the false twist portion is additionally twisted. A yarn for which this winding method is particularly effective is a wool yarn containing short fiber wool.

The yarn winding device is a yarn winding device for unwinding a yarn wound around a yarn supplying bobbin or the like and winding the yarn around a package or the like, and the yarn is wound around a yarn path of the unwound yarn. An air flow injection nozzle is provided, and a nip-type false twisting means for nipping a yarn to perform false twisting is provided before and after the nozzle. In particular, the nip type false twisting means intersects each other in the traveling direction and makes contact with each other,
A roller having a pair of rotating bodies for nipping and delivering the yarn, and at least one of the pair of rotating bodies is elastic and flexible at a contact portion with the yarn and has a cavity formed therein is preferable. . Further, it is preferable that the swirl airflow injection nozzle injects a swirl airflow containing steam.

[0009]

[Operation] When steam is applied to the yarn, the yarn is rapidly heat-treated by the heat of condensation of the steam, effectively removing the latent stress of the yarn and performing heat setting similar to ironing. The fluff is caught by the reliable false twist by the front and back nip, and the fluff is reduced by the synergistic effect of the heat setting and the nip false twist. The fluff binding due to the false nip twist is more effective after heat setting. When the twist direction of the nip false twist is the direction in which the yarn on the upstream side of the false twist portion is additionally twisted, it is easy to maintain a fluffy feel.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a main part of a yarn winding device according to the present invention, FIG. 2 is a view showing a swirling air current injection nozzle, and FIGS. 3 and 4 are views showing a fluff suppressing device.

FIG. 1 is a schematic diagram of a yarn winding device according to the present invention. From the upstream side, a cone-shaped yarn feeding package 21,
Tensor 22, fixed guide 23, nozzle 24, cutter 2
5, fluff suppressing device 26, sensor 2 for detecting the presence or absence of yarn
7, a traverse drum 28, and a winding package 31 rollingly contacting the drum 28 are arranged in this order, and the winding device is the simplest winding device. In particular, the tensor 22 superimposes two discs, and the yarn Y
Through which tension is applied.

The nozzle 24 has a steam tank (steam source) 29.
Are connected to the yarn Y to form a swirling air current injection nozzle that applies a swirling air current to the yarn Y with steam. The swirling airflow injection nozzle 24 is for heating the yarn with steam and humidifying the yarn to heat-set it, and also to wrap the fluff in a swirling flow, the detailed structure of which will be described with reference to FIG. The swirling airflow may include steam.

FIG. 2 is a detailed view of the swirling airflow injection nozzle 24. FIG. 2 (a) is a vertical sectional view of a side surface, and FIG.
2 is a bottom view, and FIG. 2C is a cross-sectional view. A ceramic element 36 is fitted into a body 35 having a concave cross section,
The yarn regulating plates 37 and 38 are disposed above and below the main body 35. As shown in FIG.
Are the inlet 39 of the triangular opening, the slit 40 and the yarn introduction hole 41
And are provided. One spouting hole 42 is tangentially opened in the longitudinal center of the yarn guide hole 41, and two spouting holes 43 are tangentially opened on both sides in the longitudinal direction of the yarn guide hole 41. The ejection hole 43 communicates with the header 44 and the header 4
4 and the ejection hole 42 communicate with a header 45, and the header 45 communicates with a port 46 provided in the main body 35.

As shown in FIG. 3B, the thread regulating plates 37, 38
Has an inclined surface 47 that overlaps with the introduction port 39, and regulates the upper and lower sides of the yarn entering the yarn introducing hole 41 through the introduction port 39 and the slit 40 to points A and B as shown in FIG. . Then, the balloon formed by the swirling flow in the yarn guiding hole 41 is maintained, and the fluff binding process by false twisting is also performed.

Next, the swirling airflow injection nozzle 22 described above is used.
Will be described with reference to FIG. The steam from the steam source 29 reaches a predetermined pressure of, for example, 1.0 kg / cm ² through the pressure reducing valve 30 provided as necessary, and reaches the port 46. Then, the whirling airflow 48 is generated by blowing out from the injection holes 42 and 43 in the tangential direction of the yarn guide hole 41. Then, the swirling airflow 4 is generated like the yarn Y of the dashed line in FIG.
A balloon is generated by 8, and false twist is applied. When false twisting is performed, the fluff is entangled with the fiber and entangled in the fiber, and a fluff binding process for reducing the fluff is performed. Since the swirling airflow 48 is proportional to the degree of the steam pressure, if it is not 1.0 kg / cm ² or more, the swirling airflow is weak, and the false twist rotation of the yarn does not reach 80,000 to 90,000 times, and the fluff suppressing effect is not sufficient. Further, the temperature of the steam from the steam source is preferably 65 ° C to 150 ° C (the temperature when coming into contact with the yarn is preferably 65 ° C to 100 ° C).

The vapor of vapor source 29 is typically water vapor, which gives off a large amount of heat upon condensation, causing yarn Y to heat rapidly. However, the circumference of the yarn introduction hole 41 is heated to a temperature corresponding to the saturated steam pressure, and the yarn Y sliding around the yarn introduction hole 41 is ironed and heat set. At the same time, a fluff binding process in which fluff is involved in false twisting is performed, and heat setting is performed so as to maintain the form with less fluff.

In particular, in the case of wool yarn, heat transfer causes a tissue transition, but this transition temperature tends to decrease as the water content of the fiber increases, so that when steam is used as steam, the water content of the fiber is increased. Since the content is increased, the heat setting is surely entered. Also, to increase the rate of metastasis,
Rapid heating is preferred, for which steam is used that generates a large heat of condensation.

Returning to FIG. 1, this swirling airflow injection nozzle 24
A fluff binding device 26 is provided downstream of the nip by false twisting, and fluff binding is performed by the synergistic action of the swirling airflow injection nozzle 24 and the fluff binding device 26. The fluff binding device 26 may be arranged upstream of the swirling airflow injection nozzle 24, but it is better to perform the fluff binding by the fluff binding device 26 immediately after the heat setting by the steam of the swirling airflow injection nozzle 24. It is effective in prolonging the suppression.

The fluff binding device 26 will be described with reference to FIGS. FIG. 3 is a front view of the fluff binding device, and FIG.
FIG. 4 is a sectional view taken along line XX of FIG. 3. In FIG. 3, the fluff suppressing device is mainly composed of a first roller 51 and a second roller 52 which are arranged to intersect each other at an angle of 90 degrees, and these rollers 51 and 52 enable the yarn to be nipped and delivered. It is a thing.

As shown in the cross section of FIG. 4, the rollers 51 and 52 are thin hollow rubber rollers (rotating bodies) 53 having a crown whose surface is a Tyco type and held at both ends. One end 53a of the hollow rubber roller 53 is fitted to the step portion of the flange portion 54a of the rotating body 54, the other end 53b is placed on the outer periphery of the disk portion 54b of the rotating body 54, and the end plate 55 prevents the hollow rubber roller 53 from coming off. A rotating shaft 56 is fixed to the center of the rotating body 54, and a screw portion 55a of the end plate 55 is screwed into an end portion of the rotating shaft 56. Rotary axis 5
6 is rotatably held by a bearing 57, and
The pulley is press-fitted on the opposite roller side.

Returning to FIG. 3, the first roller 51 is rotatably held by the first mounting plate 58, and the first pulley 59 is exposed. The second roller 52 is rotatably held by the second mounting plate 60, and has a structure in which two second pulleys 61 are exposed. The motor 62 is attached to the right-angled extension portion 58a of the first attachment plate 58, and the third pulley 63 is press-fitted into the output shaft 62a of the motor 62. Further, a fourth pulley 64 and a fifth pulley 65 are rotatably supported at appropriate positions on the first mounting plate 58.

A first round belt 66 is stretched between the third pulley 63 of the motor 62 and the outer side 61a of the second pulley 61 of the second roller 52, and the second roller 52 is rotationally driven in the direction of arrow a. It In addition, the second pulley 61 of the second roller 52
The second round belt 66 is stretched between the inner side 61a of the first pulley 59 and the first pulley 59 of the first pulley 61 via the fourth and fifth pulleys 64 and 65, and moves the first roller 51 in the direction of arrow b. It is rotating.

The first mounting plate 58 and the second mounting plate 60 are erected on a common plate 68, and the portion of the common plate 68 is fixed to an appropriate position of the winding device. In addition, the first roller 51 and the second roller 5
A first yarn guide 69 and a second yarn guide 70 for guiding the yarn Y introduced into the nip portion of No. 2 are provided. The first yarn guide 69 is 4 for each roller 51, 52.
It guides the yarn Y entering at an angle of 5 degrees, and is attached to the common plate 68 with a long hole whose position can be adjusted. The second yarn guide 69 guides the yarn Y sent through the nip portion N at the deviation angle θ, and is attached to the first attachment plate 58 with a long hole whose position can be adjusted.

In the fluff binding device having the above structure,
Since the upper and lower rollers 51, 52 are elastic and flexible and have cavities formed therein, it is possible to obtain the nip portion N composed of a relatively wide surface contact portion. Therefore, the yarn Y introduced through the first yarn guide 69 is the second yarn Y.
When it is fed to the yarn guide 70, a reliable false twist and a rubbing action over a long distance are imparted, whereby the fluff of the yarn Y is pressed against the yarn body. If one of the rollers 51 and 52 is a rubber roller and the other is a metal cylindrical roller (rotating body), the effect is substantially the same.

Next, a specific experimental example using the winding device shown in FIG. 1 will be described below. Raw material fineness 64s 100%, twist number Z
When the wool yarn of 500 T / m, 1/30 is wound without using the swirling airflow jet nozzle 24 and the fluff suppressing device 26 (no steam, no nip false twist), the swirling airflow jet nozzle 24 is not used and the fluff is generated. For three cases of winding using only the suppressing device 26 (no steam, nip false twist), and winding using the swirl airflow nozzle 24 and the fluff suppressing device 26 (steam, nip false twist),
Table 1 shows the results of measurement of the number of fluffs for each fluff length and the specific volume conversion value of specific volume.

[0026]

[Table 1]

In Table 1, the fluff is most suppressed in the case of steam and nip false twist, and the fluff is greatly reduced. Further, in the case where the nip false twist is performed so that the yarn on the upstream side of the false twist portion is additionally twisted, the yarn is swollen or rounded, and a fluffy feel is maintained.

As described above, when the winding method of the present invention is applied to the wool yarn, not only the suppression of fluff but also the soft touch peculiar to plump wool can be maintained. This is because the method of the present invention exerted a physical action on the constituent fibers themselves of the yarn to reduce strain between fibers to some extent.

Further, since the wool yarn is usually used not as a single yarn but as a double yarn, Table 2 shows the results of measuring the influence of the nip false twist before and after forming the double yarn. The yarn used for the test is
Raw material fineness 64s 100%, twist number Z500T / m × S18
It is a wool yarn of 0T / m and 2/32. As is clear from the results in Table 2, it is understood that the fluff suppressing effect is higher when the fluffing is performed when the double yarn is made than when the double yarn is made from the fluffed single yarn.

[0030]

[Table 2]

Further, the results of measuring the effect of steam and nip false twist on the number of snares (the number of twists of a yarn length of 100 m) will be described below. The yarn used in the test is a wool yarn having a raw material fineness of 64s 100%, a twist number Z320T / m, and 1/32. In the case of just rewinding (no steam, no false nip twist), the number of snares is 14. However, when the nip false twist (without steam) is applied, the number of snares is reduced to 5.2. Further, when the steam and nip false twist is applied, the number of snares is reduced to 4.5, and the steam and nip false twist is the best.

Next, an automatic winder to which the above-described winding method is applied will be described with reference to FIG. In the automatic winder, a large number of weights of the winding unit 1 shown in the drawing are arranged in parallel in the thickness direction of the paper surface, and FIG.

In FIG. 5, the winding unit 1 is fixed in position by the support tube 2 and the duct 3, and the yarn Y drawn from the yarn supplying bobbin 4 positioned and fed to a predetermined position of the unit is a balun breaker 6 and a predetermined yarn. Of the traverse drum 1 after passing through a disc or gate type tensor 7 for applying tension of the slab, a slab catcher 8 for detecting a defective portion of the yarn, and the like.
3 is wound around the winding package 14 which rotates.
Reference numeral 15 denotes a yarn splicing device, 16 is a suction mouth that guides the upper yarn on the package side to the yarn splicing device 15, and 17 is a relay pipe that guides the lower yarn to the yarn feeding bobbin to the yarn splicing device 15. In addition, the yarn feeding bobbin 4 is inserted into the tray 18 which is independent of each other.
9 to a winding position A of the winding unit 1.
Then, the empty bobbin 4 ′ after the completion of the winding is transferred to the discharge
And a new yarn supplying bobbin 4 is supplied instead.

Between the tensor 7 and the slab catcher 8, which is the yarn Y reaching the winding package 14, a steam swirling airflow injection nozzle 24 and a fluff suppressing device 26 are arranged. Immediately after heat setting by applying steam, fluffing is performed by false twisting of the nip, thereby significantly reducing fluff.

[0035]

The yarn winding method and winding device of the present invention are
The heat was rapidly set by the heat of condensation of the steam, and fluffing was performed by the nip false twist before and after this heat treatment, so the fluff was greatly suppressed by the heat setting and the fluffing, and it became tingling on human skin. It is possible to produce new yarns that do not feel. In particular, in the case of a wool formed by containing wool of short fibers, the use was limited by the fluff, but when the method of the present invention is applied, the fluff can be significantly reduced while maintaining the puffiness peculiar to the wool. As a result, it has the potential to expand its application to the field of knitted fabrics that come into direct contact with human skin.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a yarn winding device according to the present invention.

FIG. 2 is a diagram showing a swirling airflow injection nozzle.

FIG. 3 is a front view of a fluff suppressing device.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is a device configuration diagram of a winding unit to which the winding method of the present invention is applied.

[Explanation of Codes] 24 Swirling Air Flow Nozzle 29 Steam Tank (Steam Source) 26 Fluff Suppressor 51 First Roller 52 Second Roller

Claims (7)

[Claims] 1. A method of winding a yarn, which comprises running the yarn, applying steam to the yarn, nipping the yarn before and after the yarn to perform false twisting, and then winding the yarn. . 2. The yarn winding method according to claim 1, wherein the yarn is nipped and false twisted after steam is applied to the yarn. 3. The yarn winding method according to claim 1, wherein the twisting direction of the false twist is a direction in which the yarn upstream of the false twist portion is additionally twisted. 4. The method for winding a yarn according to claim 1, 2 or 3, wherein the yarn is a wool formed by including wool of short fibers. 5. A yarn winding device for unwinding a yarn wound around a yarn supplying bobbin or the like and winding the yarn around a package or the like, wherein a swirling airflow injection nozzle is provided in a yarn path of the unwound yarn, A yarn winding device characterized in that a nip type false twisting means for nipping the yarn to perform false twisting is provided before and after the nozzle. 6. The nip type false twisting means comprises a pair of rotating bodies which come into contact with each other while intersecting the traveling directions, and nips and delivers the yarn, and at least one of the pair of rotating bodies comes into contact with the yarn. 6. The yarn winding device according to claim 5, wherein the portion is a roller having elasticity and flexibility and having a cavity formed therein. 7. The yarn winding device according to claim 5, wherein the swirling airflow injection nozzle injects a swirling airflow containing steam.