JPH0637363U - Fluff suppressing device for spun yarn - Google Patents

Abstract

(57) [Abstract] [Purpose] A spun yarn that can obtain a yarn that is substantially free of fluff and that can prevent the yarn from coming off between the drive roller and the twisting belt of the fluff suppressing device. To obtain a fluff suppressing device. [Structure] A yarn guide having a yarn locking portion is provided on a yarn introduction side of a fluff suppressing device including a driving roller and a twisting belt provided on a downstream side of a delivery roller, and a force in a thrust direction acting on the yarn is blocked. It was configured.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fluff suppressing device for spun yarn obtained by an air spinning device.

[0002]

[Prior art]

 A conventional spinning device includes a draft device that drafts a sliver supplied from a can, an air spinning nozzle (twisting device) that twists the sliver drafted by the draft device, and a delivery roller that sends out the formed yarn. A winding device that winds the delivered yarn is formed. The spun yarn is wound between the air spinning nozzle and the delivery roller and then wound by the winding device. Many fluffs were formed on the surface of the conventional spun yarn thus obtained, which had a considerable influence on the quality of the product.

[0003]

[Problems to be solved by the device]

 The present invention provides a fluff suppressing device for spun yarn that can obtain a yarn that is substantially free of fluff and that can prevent the yarn from coming off between the drive roller and the twisting belt of the fluff suppressing device. The purpose is to get.

[0004]

[Means for Solving the Problems]

 A yarn guide equipped with a yarn locking portion is provided on the yarn introduction side of the fluff suppressing device consisting of a drive roller and a twisting belt provided on the downstream side of the delivery roller, and the force in the thrust direction acting on the yarn is blocked.

[0005]

[Action]

 The yarn sent from the delivery roller is locked to the yarn locking part of the yarn guide, the force in the thrust direction applied to the yarn is blocked, and the yarn is constantly introduced into the fluff suppressing device at a fixed position to suppress the fluff.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a spinning device provided with a fluff suppressing device for spun yarn of the present invention includes a back roller pair 1a, a third roller pair 1b, a second roller pair 1c mounted with an apron band, and a front. The draft device 1 including the roller pair 1d, the air spinning nozzle 2 for twisting the sliver S drafted by the draft device 1, the delivery roller 3 for delivering the formed yarn Y, and the fluff suppressing device located further downstream thereof. It comprises a control device 4 and a winding device 5 for winding the yarn Y sent out from the fluff suppressing device 4, 6 is a dust collector equipped with a suction pipe 7, 8 is a slack tube, 9 is a slab catcher, and 10 is The traverse device of the winding device 5 is shown. 11 is a take-up roller.

The air-spinning nozzle 2 is composed of a first nozzle and a second nozzle that cause swirl flows in opposite directions to act on the yarn. The yarn exiting from the air spinning nozzle 2 is basically composed of core fibers (core yarns) aligned substantially parallel to the delivery roller 3 and wrapping fibers spirally wound around the core fibers. It becomes a united spun yarn.

However, in the present invention, the fluff suppressing device 4 is provided on the yarn path on the downstream side of the delivery roller 3, and the fluff suppressing device 4 is supported by the drive shaft 12 as shown in FIGS. 2 and 3. The drive shaft 12 is integrally formed with a drive roller 14 having a rubber coating 13 on its surface, and a twisting belt 16 mounted between a pair of rollers 15a and 15b. On the other hand, it is mounted on the drive roller 14 with an intersection angle θ of 55 ± 10 degrees.

The drive shaft 12 of the drive roller 14 that is positively rotated by a drive device (not shown) is provided with a friction roller 17 that rotates in contact with the drive roller 12, and the friction roller 17 is mounted on the rotary shaft 18 of the friction roller 17. The bevel gear 19 and the bevel gear 20 on the rotating shaft of the roller 15b on which the twisting belt 16 is mounted mesh with each other to transmit the rotation of the drive shaft 12 to the twisting belt 16.

At this time, the driving roller 14 and the vector speed in the traveling direction of the yarn Y on the twisting belt 16 are equal to each other, and the speeds of both are equal to or higher than the speed of the delivery roller 3 located upstream thereof. Is preferred. The contact pressure between the driving roller 14 and the twisting belt 16 is adjusted by moving the twisting belt 16 away from or near the circumferential surface of the driving roller 14.

However, in the above-described fluff suppressing device of the present invention, since the force in the thrust direction acts on the yarn Y, the yarn guide 21 is provided on the introduction side of the yarn Y as shown in the figure. The yarn guide 21 is in the form of a plate screwed to the body frame and has a thread guide edge 22 and a thread locking portion 23. However, the yarn guide 21 is not limited to the plate shape having the above-mentioned shape, and any shape such as other plate shape and wire shape may be used, and the material thereof is made of ceramic or the like, which is wear-resistant. It is preferably rich in.

Then, the yarn locking portion 23 is displaced with respect to the yarn path in a direction opposite to the direction in which the yarn flows. The amount of deviation is adjusted by the fluff suppressing device so that the yarn deviates in the thrust direction, and as a result, the yarn path is consistent between the upstream side 31 and the downstream side 32 of the fluff suppressing device and is always constant.

Therefore, the sliver S pulled out from the can (not shown) is drafted by the draft device 1 after passing through the trumpet guide 24, and then twisted by the air spinning nozzle 2 to form the spun yarn Y, which is spun. The yarn Y travels while being ballooned (untwisted) between the air spinning nozzle 2 and the delivery roller 3, is then delivered from the delivery roller 3, and is introduced into the fluff suppressing device 4 of the present invention. The hem yarn Y is locked by the yarn locking portion 23 of the yarn guide 21, the force acting in the thrust direction is blocked, and the twisting belt 16 and the driving roller 14 that positively rotate together through the friction roller 18 and the bevel gears 19 and 20. It is introduced between and, and the false twist and rubbing action are always given at a fixed position, the fluff on the yarn Y is wrapped around the core yarn, and the fluff-free yarn Y is Form.

As a result, as shown in [Table 1], the degree of reduction in fluff was as follows: No false twist was applied to the number of fluffs of 3000 (the fluff observed at a position 0.5 mm apart from the yarn per 10 m). (Total number) is reduced to 200 or less.

[0016]

[Table 1]

As shown in FIG. 2, the twisting belt 16 is provided so as to incline from the upper left side to the lower right side with respect to the drive roller 14, but the untwisting action is performed on the Z-twisted yarn. After the yarn has passed through the fluff suppressing device 4, the wound fiber becomes more tightly wound in the untwisting stage, so that the yarn strength is increased. On the other hand, since the additional twisting action is given to the S-twisted yarn, the torque of the yarn becomes small. When the left and right sides of FIG. 2 are reversed and the twisting belt 16 is inclined from the upper right side to the lower left side, the untwisting action is given to the S-twisted yarn and the yarn strength is increased. Get higher On the other hand, for Z-twisted yarn, the additional twisting action is applied, and the torque of the yarn becomes small.

[0018]

[Effect of device]

 As described above in detail, the fluff suppressing device for a spun yarn of the present invention is provided with a yarn locking portion on the yarn introducing side of the fluff suppressing device including a driving roller and a twisting belt provided on the downstream side of the delivery roller. Since a yarn guide is provided to prevent the force in the thrust direction that acts on the yarn, the yarn sent from the delivery roller is locked by the locking part of the yarn guide provided on the yarn introducing side of the fluff suppressing device. The thrust force applied to the yarn is blocked, and the yarn is constantly introduced into the fluff suppressing device at a fixed position, so that the yarn is separated from between the drive roller and the twisting belt of the fluff suppressing device as in the conventional case. It was possible to completely prevent the occurrence of troubles, and as a result, it was possible to obtain high-quality yarn with less fluff in the spun yarn.

[Brief description of drawings]

1 is a perspective view of a spinning device equipped with the device of the present invention.

FIG. 2 is a schematic plan view showing a main part of the device of the present invention.

FIG. 3 is a side view of the same.

[Explanation of symbols]

 Y yarn 1 draft device 3 delivery roller 4 fluff suppressing device 12 drive shaft 14 drive roller 16 twisting belt 21 yarn guide

Claims (1)

[Scope of utility model registration request] 1. A yarn introduction side of a fluff suppressing device comprising a driving roller and a twisting belt provided on the downstream side of a delivery roller,
A fluff suppressing device for spun yarn, characterized in that a yarn guide having a yarn locking portion is provided to prevent a thrust force acting on the yarn.