JP2002030530A - Method for spinning pasted slub yarn and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To twine a roving into a spun yarn at preset thickness, length and intervals. SOLUTION: A spun yarn 13 delivered from a spun yarn bobbin 12 is passed through a guide roller 14 and between a front bottom roller 6 and a front top roller 7 and wound through a guide 15 on a spun yarn winding bobbin 18 with a traveler 17 rotating along a ring 16 under the application of twist of the direction reverse to the twisting direction of the spun yarn 13. When the 1st driving device 10 is operated for a short time during the above winding motion, the roving delivered from the roving bobbin roller 19 is drafted and guided between the front bottom roller 6 and the front top roller 7. Since the spun yarn 13 continuously passing between the rollers is wound on the spun yarn winding bobbin 18 with reverse twist the roving 20 delivered in a short time is entwined to the spun yarn 13 by the return of the spun yarn to the twisted state to form a slub yarn sporadically entwined with the roving 20 to form partly thickened parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attached slab yarn spinning method and apparatus in which roving yarns of different qualities or different colors are partially arbitrarily twisted into a spun yarn.

[0002]

2. Description of the Related Art Conventionally, roving yarns of different qualities and different colors are partially and arbitrarily mixed into a spun yarn, and a pair of a front bottom roller and a front top roller, a middle bottom roller and a middle top roller are used. In a draft device comprising rollers, a back bottom roller and a back top roller, another roving yarn (slab) cut short between the middle bottom roller and the middle top roller for spinning the roving yarn and the front bottom roller and the front top roller. ), The slab is sent together with the roving to be spun and twisted, so that the portion where the short slab is entangled expands to produce a bonded slab yarn.

[0003]

However, in such a spinning apparatus, since another roving is manually inserted into the roving from one roving bobbin, mass production cannot be performed, and the spinning is not possible. There is a problem that the interval and length of the slabs of the spun bonded slab yarn are not constant, and that the size of the slab cannot be changed.

[0004]

According to the present invention, a spun yarn is continuously wound around a bobbin by reverse twisting, and while the roving yarn is being stretched, the roving yarn is fed out in a short time, and the spun yarn is wound. A method of partially twisting the roving yarn at an equal interval or an arbitrary interval or an arbitrary thickness and length in the middle of spinning,
The roving may be cotton, wool, chemical fiber, or the like, and the spun yarn and the roving may have different colors.
Coaxially mounted back bottom roller rotated by a first driving device for each weight and back top roller pressed against it, coaxially mounted middle bottom roller rotated by the first driving device, and In a drafting device including a middle top roller to be pressed and a front bottom roller driven by a second driving device and a front top roller to be pressed against the same, a spun yarn drawn from a plurality of spinning bobbins mounted for each weight. Continuously passing the spun yarn between the freon bottom roller and the front top roller, continuously winding the passed spun yarn into a twist and reverse twist of the spun yarn with a spinning take-up bobbin, The roving thread derived from the bobbin is guided between the back bottom roller and the back top roller, and the back bottom roller and the back The roving thread derived from the upper roller is guided between the middle bottom roller and the middle top roller, and the roving thread derived from the middle bottom roller and the middle top roller is moved between the front bottom roller and the front top roller. By driving the first driving device for a short time, the roving yarn guided between the middle bottom roller and the middle top roller pressed against the middle bottom roller is guided between the front bottom roller and the front top roller. A device for spinning an attached slab yarn by appropriately thinly stretching and partially twisting the drawn spinning yarn, and the back bottom roller and the back top roller, and the middle bottom roller and the middle top roller. Brake draft between the middle bottom roller and the middle top roller The thickness of the roving may be changed by changing the main draft between the front roller and the front roller, and the roving from the roving bobbin may be made of cotton, wool, or chemical. Fiber or the like may be used, and the spun yarn and the roving yarn may have different colors.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, spun yarns from a plurality of spun bobbins mounted for each spindle are wound up by a spinning take-up bobbin while being untwisted, and are drafted into unwound spun yarns. By twisting the roving at an arbitrary thickness and length, and at an arbitrary interval, the roving can be twisted into the spun yarn at the set thickness, length and interval.

[0006]

FIG. 1 is a side view of a pasting slab yarn spinning device according to one embodiment of the present invention, FIG. 2 is a schematic configuration diagram of the pasting slab yarn spinning device of FIG. 1, and FIG. FIG. 1 is a schematic configuration diagram of a bobbin roller. FIG. 1 shows a roller stand 1 in which a back bottom roller 2 and a back top roller 3, a middle bottom roller 4 and a middle top roller 5, a front bottom roller 6 and a front top roller 7 are paired, respectively. A draft device 9 provided with a guide 8 mounted near the back bottom roller 2 and the back top roller 3 is provided. As shown in FIG. 3, the back bottom roller 2 and the middle bottom roller 4 of the draft device 9 are provided. Is rotated by the first driving device 10 and the front bottom roller 6 is
Is rotated by the drive device 11 of the first embodiment.

The spun yarn 13 drawn from the spun bobbin 12 passes between the front bottom roller 6 and the front top roller 7 via the guide roller 14 and travels from the guide 15 along the ring 16 to the traveler 17.
The roving yarn 20 drawn out from the roving bobbin 19 passes through the guide 8 of the draft device 9 and is wound on the spinning take-up bobbin 18 in a direction opposite to the twist of the spinning yarn 13. The roving yarn 20 drawn between the back bottom roller 2 and the back top roller 3 is further guided between the middle bottom roller 4 and the middle top roller 5, and The roving yarn 20 drawn out from between the middle top rollers 5 is guided between the front bottom roller 6 and the front top roller 7.

In the pasting slab yarn spinning apparatus according to the present embodiment, the spinning yarn 13 continuously drawn from the spinning bobbin 12 is guided by the guide roller 14 to the front bottom roller 6 and the front top roller. 7, a spinning reel 13 is wound on a spinning bobbin 18 by a traveler 17 rotating along a ring 16 from a guide 15.
When the first driving device 10 is driven for a short time while being twisted and wound in the reverse direction, the roving yarn pulled out from the roving bobbin roller 19 is moved from between the middle bottom roller 4 and the middle top roller 5. The spun yarn 13 which is drawn out and guided between the front bottom roller 6 and the front top roller 7 and continuously passes between the front bottom roller 6 and the front top roller 7 here.
Is wound in reverse twist on the spinning take-up bobbin 18,
The roving yarn 20 pulled out in a short time is entangled when the twist of the spun yarn 13 is returned, and as shown in FIG. 4, a slab yarn 21 in which the portion where the roving yarn 20 is entangled partially expands is spun.

As described above, in the present embodiment, the first spun yarn 13 that passes continuously between the front bottom roller 6 and the front top roller 7 and is wound in reverse twist is
When the driving device 10 is driven for a short time and stopped, the roving yarn 20 guided from the middle bottom roller 4 and the middle top roller 5 to the front bottom roller 6 and the front top roller 7 is driven by the first driving device 10. The brake draft between the back bottom roller 2 and the back top roller 3, the middle bottom roller 4 and the middle top roller 5, the middle bottom roller 4, the middle top roller 5, the front bottom roller 6, and the front If the total draft with the main draft between the top rollers 7 is large, that is, if the roving 20 is strongly stretched, the roving 20 guided between the front bottom roller 6 and the front top roller 7 becomes thin.
As shown in (a), if the slab 22a of the roving 20 of the slab yarn 21 is small and the total draft is small, that is, if the stretching of the roving 20 is weak, the front bottom roller 6 and the front top roller 7 The roving yarn 20 guided therebetween becomes thicker, and as shown in FIG. 4B, the slab 22b of the roving yarn 20 of the slab yarn 21 becomes larger, and the driving interval of the first driving device 10 is set as appropriate. Thereby, the interval and length of the slab 22 of the slab yarn 21 can be arbitrarily changed.

According to the present invention, the roving yarn 2 is drafted by the draft device 10 while the twisted spun yarn 13 is untwisted and reversely twisted.
Since the slab yarn 21 is spun by spinning 0 to an arbitrary thickness and length and entangled with the spun yarn 13, the thickness, length and interval of the slab 22 in the slab yarn 21 are set arbitrarily. Slab yarn 2 that could not be obtained until now
1 can be spun.

[0011]

As is apparent from the above description, in the method and apparatus for spinning a bonded slab yarn according to the present invention, while the untwisted twisted spun yarn is untwisted and the roving yarn is arbitrarily twisted, an arbitrary roving yarn is formed. Since the slab yarn is spun by spinning to the thickness and length and entangled with the fine spun yarn, the thickness, length and interval of the slab in the slab yarn can be arbitrarily set, and it has not been obtained until now. There is an advantage that the slab yarn can be easily spun.

[Brief description of the drawings]

FIG. 1 is a side view of an attached slab yarn spinning device according to one embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of the pasting slab yarn spinning device of FIG.

FIG. 3 is a schematic configuration diagram of a bottom roller of the draft device of FIG. 1;

FIG. 4 is a configuration diagram of a slab yarn.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roller stand 2 Back bottom roller 3 Back top roller 4 Middle bottom roller 5 Middle top roller 6 Front bottom roller 7 Front top roller 8 Guide 9 Draft device 10 First drive device 11 Second drive device 12 Spinning bobbin 13 Fine Spinning 14 guide roller 15 guide 16 ring 17 traveler 18 spinning take-up bobbin 19 roving bobbin 20 roving 21 slab yarn 22 slab

Continued on front page F-term (reference) 4L036 AA01 MA04 MA09 MA10 MA35 MA39 PA21 PA31 PA39 PA46 RA25 RA28 UA12 UA21 4L056 AA02 AA47 BA05 BC14 EB10 EB18 EC62 EC76

Claims (7)

[Claims] 1. A spun yarn is continuously wound around a bobbin by reverse twisting, and while the roving is being stretched, the roving is fed out in a short time, and the roving is placed in the middle of the wound spun yarn. A method for spinning a pasted slab yarn, comprising partially twisting at an interval or an arbitrary interval or an arbitrary thickness and length. 2. The method according to claim 1, wherein the roving is cotton, wool, chemical fiber or the like. 3. The method according to claim 1, wherein the spun yarn and the roving yarn have different colors. 4. A back-bottom roller mounted coaxially and rotated by a first drive unit for each weight, and a back-top roller pressed against the same, mounted coaxially and rotated by the first drive unit. In a draft device including a middle bottom roller, a middle top roller pressed against the front bottom roller, and a front bottom roller driven by a second driving device, and a front top roller pressed against the same, a plurality of spinning bobbins mounted for each weight are provided. Continuously passed between the freon bottom roller and the front top roller, and the passed spun yarn is continuously wound by a spinning take-up bobbin to twist and reverse twist the spun yarn. And guiding the roving yarn derived from the roving bobbin between the back bottom roller and the back top roller, And a roving thread derived from the back top roller is guided between the middle bottom roller and the middle top roller, and a roving thread derived from the middle bottom roller and the middle top roller is fed to the front bottom roller and the front top roller. A roving yarn guided between the middle bottom roller and the middle top roller pressed against the middle bottom roller by guiding the roving yarn between the middle bottom roller and the middle top roller by driving the first driving device for a short time; A pasting slab yarn spinning device, wherein the pasting slab yarn is spun out by appropriately thinly stretching and partially twisting the spun yarn guided between them. 5. A brake draft between the back bottom roller, the back top roller, the middle bottom roller, and the middle top roller, and a brake draft between the middle bottom roller, the middle top roller, the front bottom roller, and the front top roller. The sticking slab yarn spinning device according to claim 4, wherein the thickness of the roving yarn is changed by changing the main draft of (1). 6. The roving from the roving bobbin is cotton, wool,
The apparatus according to claim 4, wherein the apparatus is a synthetic fiber. 7. The bonded slab yarn spinning apparatus according to claim 4, wherein the spun yarn and the roving yarn have different colors.