JPH0685374U - Fluff suppressor - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a fluff suppressing device that can obtain a spun yarn having substantially no fluff, can easily replace a rubber roller, and can reduce the replacement frequency. A roller core and a nip member that touches the roller in the traveling direction so as to contact and nip the yarn, and the roller core body and a plurality of rubbers externally fitted to the roller core body adjacent to each other. Composed of a band and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fluff suppressing device which is a spun yarn processing device.

[0002]

[Prior art]

 Conventionally, in an air spinning machine, for example, a sliver supplied from a can is drafted by a draft device composed of three or more draft roller pairs, and then an air spinning device provided downstream of the draft device. The false twist spinning was performed by the device. Many fluffs were formed on the surface of the spun yarn obtained by such an air spinning device due to the action of the swirling airflow during spinning, and it became a cloudy yarn, which had a considerable influence on the quality of the product.

Therefore, in order to reduce the above-mentioned fluff of the spun yarn, a fluff suppressing device has been developed which feeds the spun yarn while nipping the spun yarn with a rubber roller and a nip member such as an endless belt that obliquely contacts the roller. However, in such a fluff suppressing device, there is a problem that the rubber roller is liable to be locally worn and it takes time to replace it.

[0004]

[Problems to be solved by the device]

 In view of these points of the conventional technique, the present invention can obtain a spun yarn that is substantially free of fluff, facilitates the replacement of a rubber roller, and can reduce the replacement frequency of the fluff suppressing device. It is intended to provide.

[0005]

[Means for Solving the Problems]

 The roller includes a roller and a nip member that intersects the roller in the traveling direction and nips the yarn, and the roller includes a roller core body and a plurality of rubber bands that are externally fitted to the roller core body. Composed of.

[0006]

[Operation] The spun yarn introduced into the fluff suppressing device from the upstream side has a false twisting and rubbing action when it is nipped between one of a plurality of rubber bands fitted outside the roller core and the nip member. As a result, the fluff on the surface of the spun yarn is caught in the yarn itself and is delivered as a spun yarn having substantially no fluff. When the rubber band wears and reaches the limit of use, the rubber band is removed from the roller core body, and a spare rubber band externally fitted to the roller core body is sequentially slid to the nip position. As a result, the rubber band can be replaced without removing the roller core one after another.

[0007]

【Example】

 Examples will be described with reference to the drawings.

FIG. 1 shows a spinning machine 2 equipped with the fluff suppressing device 1 of the present invention. In FIG. 1, the spinning machine 2 includes a back roller pair 4a, a third roller pair 4b, a second roller pair 4c on which an apron belt 4e is mounted, a front roller pair 4d, a four-wire draft device 4, an air spinning device 5, and a nip roller 6a. The delivery roller 6, the slack tube 7, the yarn clearer 8 for detecting yarn defects, and the winding device 9, which are in pressure contact with each other, are sequentially arranged from the upstream side to the downstream side. Is provided on the downstream side of the delivery roller 6 of the spinning machine 2.

In FIG. 2, a fluff suppressing device 1 includes a roller 11 that is driven to rotate, and a rubber endless nip belt that is obliquely contacted with the roller 11 and is mounted between a drive pulley 13 and a driven pulley 14. 12 (nip member), the roller 11 and the nip belt 12 that crosses the roller 11 and contacts the roller 11 while feeding the spun yarn Y while knitting the spun yarn Y and false twisting the spun yarn Y. It also has a mechanism to give a rubbing effect.

The roller 11 is formed by closely fitting a plurality of rubber bands 16, 17, 18 to a roller core body 15 having a flange 15a formed at one end as shown in FIG. In the illustrated example, the case where three rubber bands 16, 17, and 18 are provided is shown, but the number may be two or three or more. Further, the rubber bands 16, 17 and 18 may be apron bands. The roller 11 fixes the flange 15a to the drive shaft 21 by arranging the flange 15a on the left side in the drawing, which is the running direction 12a on the contact surface of the nip belt 12, and fixes the rubber band 16 on the left end in the drawing adjacent to the flange 15a. And the spun yarn Y is nipped by the rubber band 16 and the nip belt 12. At this time, the flange 15a prevents the rubber band 16 from escaping from the roller core body 15 due to the frictional force acting in the direction of the arrow 12a by the traveling of the nip belt 12. The remaining rubber bands 17 and 18 are spares for replacement.

The drive pulley 13 is a pulley with a collar that has collars 13 a and 13 b formed on the outer peripheral edges thereof to prevent the deviation of the nip belt 12, and the collar 13 a on the yarn sending side of the drive pulley 13 is on the yarn introducing side. It has a larger diameter than the collar 13b. This is to prevent the nip belt 12 from coming off to the yarn delivery side due to contact with the roller 11 which is driven and rotated, and to prevent this. The drive pulley 13 is fixed to one end of a rotary shaft 27 rotatably supported by a supporting member 19 with a screw, and the supporting member 19 is bolted to a bracket 32 fixed to a frame 30 with a bolt 31. It is fixed at 33.

A bevel gear 26 is formed at the other end of the rotary shaft 27, and the bevel gear 26 is provided on a rotary shaft 24 of a friction roller 23 rotatably supported by the support member 19. 25, and the friction roller 23 is in pressure contact with the friction roller 22 provided on the drive shaft 21 of the roller 11, so that the drive shaft 21 rotates in a pair of friction rollers 22, 23, 24, a pair of bevel gears 25 and 26, and a rotary shaft 27 to transmit the driving pulley 13, and the driving pulley 13 drives the nip belt 12 with the roller 11 at a constant speed ratio.

The driven pulley 14 is rotatably supported by a support shaft 28 provided on the support member 20, and the support member 20 is fixed to the support member 19 by a bolt (not shown). Then, a thread guide piece 29 is provided so as to hang down on the lower surface of the support member 20.

Next, the operation will be described based on examples.

In the spinning machine 2 shown in FIG. 1, the sliver S supplied from the can 3 is drafted by the drafting device 4, then false twisted by the air spinning device 5 and sent out as spun yarn Y by the delivery roller 6. A large number of fluffs are formed on the surface of the spun yarn Y in this state due to the action of air during spinning. Then, the spun yarn Y sent out from the delivery roller 6 is guided by the yarn guide piece 29 in the fluff suppressing device 1, contacts the roller 11 and the roller 11, and the contact surface indicates an arrow 12a in FIG. The spun yarn Y is fed while being nipped by the nip belt 12 which is being driven in this direction. At this time, the upper surface of the spun yarn Y receives a frictional force in the driving direction 12a of the nip belt 12 and tends to be fed in that direction. On the other hand, since the lower surface of the spun yarn Y is pressed and grasped on the surface of the rubber band 16 of the roller 11, the spun yarn Y is false twisted and given a rubbing action, which causes the fluff on the surface of the spun yarn Y. Is wound around the yarn itself and is sent out to the downstream side as a spun yarn Y having virtually no fluff, and is wound up as a package P in the winding device 9 via the yarn clearer 8.

Of the rubber bands 16, 17, 18 fitted on the roller core body 15 of the roller 11, the rubber band 16 that is in contact with the nip belt 12 and nips the spun yarn Y is worn. When the usage limit is reached, the rubber band 16 is removed from the roller core body 15 by cutting it or the like, and then the spare rubber bands 17 and 18 are sequentially slid to the left side in the drawing, whereby the roller core body 15 is removed. Can be easily replaced without being removed from the rotary shaft 21 one after another. After all the rubber bands 16, 17, 18 are used, the roller core body 15 may be removed from the rotary shaft 21, and the three rubber bands may be fitted on the roller core body 15 again. In this case, the frequency with which the roller core body 15 is pulled out is only one-third as compared with the case where a single rubber band is used.

In the above embodiment, the fluff suppressing device 1 of the present invention is applied to the spinning machine 2 having the air spinning device 5, but the present invention is not limited to this and other spinning It can be applied to various textile machines such as machines and winders that are effective in suppressing fluff. Further, instead of the nip belt 12, another nip member such as a rubber band may be used.

[0018]

[Effect of device]

 The fluff suppressing device of the present invention comprises a roller and a nip member that intersects the roller in the traveling direction and nips the yarn as described above. The roller is provided on the roller core body and the roller core body with respect to each other. Since it is composed of a plurality of rubber bands that are externally fitted adjacent to each other, it is possible to obtain a spun yarn that is substantially free of fluff, and it is easy to replace the rubber bands and the frequency of replacement can be reduced. It is possible.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a spinning machine equipped with a fluff suppressing device according to an embodiment of the present invention.

FIG. 2 is a plan view of the fluff suppressing device according to the embodiment of the present invention.

FIG. 3 is a partially cutaway perspective view showing a roller.

[Explanation of symbols]

 1 Fluff Suppression Device 2 Spinning Machine 11 Roller 12 Nip Belt 13 Drive Pulley 14 Driven Pulley 15 Roller Core 16,17,18 Rubber Band Y Yarn

Claims (1)

[Scope of utility model registration request] 1. A roller core and a nip member for contacting and crossing the running direction of the roller so as to nip the yarn, and a plurality of the roller core body and a plurality of the roller core body externally fitted adjacent to each other. A fluff suppressing device, which is configured with a rubber band of.