JPH0661974U - Fluff suppressor - Google Patents

Abstract

(57) [Abstract] [Purpose] Spun yarn can be obtained that is substantially free of fluff, has a simple structure, is easy to adjust the contact pressure of the endless belt, and has excellent durability. Provide a device. [Structure] A touch roller, and an endless belt that obliquely contacts the touch roller and nips a thread, and a rotary shaft of one drive pulley of a pair of pulleys mounted with the endless belt and the touch roller. A pair of conical friction wheels and a drive transmission belt were interposed between the rotary shaft and the rotary shaft.

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 drafting device composed of a pair of draft rollers of 3 to 5 lines, and then, by an air spinning device provided on the downstream side of the drafting device. It was false twist spinning. On the surface of the spun yarn obtained by such an air spinning device, many fluffs were formed by the air action during spinning, which had a considerable influence on the quality of the product.

Therefore, in order to eliminate the fluff of the spun yarn, a fluff suppressing device has been developed that feeds the spun yarn while nipping the spun yarn with a touch roller that is driven to rotate and an endless belt that obliquely contacts the roller. In such a fluff suppressing device, the rotation of the touch roller rotation shaft is transmitted to the endless belt drive shaft via the bevel gear.However, not only is the bevel gear prone to wear, but the device becomes complicated and the spinning machine is limited. In addition, in the mounting space, since the peripheral length of the endless belt cannot be sufficiently secured, the belt is easily worn, and it is difficult to adjust the contact pressure of the belt with respect to the touch roller.

[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, has a simple structure, and can easily adjust the contact pressure of the endless belt, and An object is to provide a fluff suppressing device having excellent durability.

[0005]

[Means for Solving the Problems]

 A touch roller and an endless belt that obliquely contacts the touch roller and nips the yarn, and the rotating shaft of one of the pair of pulleys on which the endless belt is mounted and the rotating shaft of the touch roller. A pair of conical friction wheels and a drive transmission belt were interposed between them.

[0006]

[Action]

 The rotation of the touch roller is transmitted to the drive pulley by a drive transmission belt mounted between a pair of conical friction wheels and a pair of pulleys, whereby the endless belt is driven at a constant speed ratio with the touch roller. . When the spun yarn introduced into the fluff suppressing device from the upstream side is nipped by the touch roller and the endless belt, false twisting and rubbing action are given, whereby the fluff on the spun yarn surface is caught in the yarn itself. It is sent as spun yarn without fluff. Further, when adjusting the contact pressure of the endless belt with respect to the touch roller, the attachment position of the belt is changed and the tension of the drive transmission belt is adjusted appropriately.

[0007]

【Example】

 An example of the embodiment 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 bracket 10 that rotatably supports the drive shaft 6b of the delivery roller 6 on the downstream side of the delivery roller 6 of the spinning machine 2.

2 and 3, the fluff suppressing device 1 includes a touch roller 12 that is driven to rotate, and an endless device that is obliquely contacted with the touch roller 12 and is mounted between a drive pulley 13 and a driven pulley 14. The belt 15 is mainly configured to have a mechanism for feeding the spun yarn Y while nipping it with the endless belt 15 and the touch roller 12 and giving a false twisting and rubbing action to the spun yarn Y.

The drive pulley 13 is a flanged pulley in which flanges 13 a and 13 b are formed on the outer peripheral edges of the drive pulley 13 to prevent the endless belt 15 from deviating. It has a larger diameter than the collar 13b. This is because the endless belt 15 is likely to come off to the yarn feeding side due to the contact with the touch roller 12 which is driven and rotated, and this is prevented. The drive pulley 13 is fixed with a screw 19 to one end of a rotary shaft 27 which is rotatably supported by a support member 18 which is fixed to the tip of the bracket 10 with a bolt 11. A pulley 26 is fixed to the end.

The bearing 17 provided at the tip of the bent lower end 16 of the bracket 10 rotatably supports a pulley 24 at one end and a conical friction wheel 22 at the other end, and a fixed rotary shaft 23. A belt 25 is laid flat between the pulley 24 and the pulley 26. Then, the belt 25 is applied with an appropriate belt tension by a tension pulley 28 rotatably provided on the lower end portion 16 of the bracket 10.

Further, the conical friction wheel 22 is pressed against a conical friction wheel 21 provided on the rotary shaft 20 of the touch roller 12, whereby the rotation of the rotary shaft 20 rotates as a pair of conical friction wheels 21, 22, 22. It is transmitted to the drive pulley 13 via the rotary shaft 23, the pulley 24, the belt 25, the pulley 26, and the rotary shaft 27, and the endless belt 15 is driven by the drive pulley 13 at a constant speed ratio with the touch roller 12. .

The driven pulley 14 is rotatably supported by a support shaft 29 provided on the support member 18, and a thread guide piece 30 is provided so as to hang down from the lower surface of the support member 18.

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. Many fluffs are formed on the surface of the spun yarn Y in this state by 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 30 in the fluff suppressing device 1 and comes into contact with the touch roller 12 and the touch roller 12, and at the contact surface, the arrow in FIG. The yarn is sent while being nipped by the endless belt 15 which is driven in the direction of 31. At this time, the spun yarn Y is given a false twisting and rubbing action, whereby the fluff on the surface of the spun yarn Y The spun yarn Y is wound around itself and is sent out to the downstream side as a spun yarn Y having substantially no fluff, and is wound as a package P in a winding device 9 through a yarn clearer 8.

Further, it is possible to adjust the contact pressure of the endless belt 15 with respect to the touch roller 12 by changing the mounting position of the supporting member 18 with respect to the bracket 10. In this case, the tension pulley 28 is used to adjust the belt 26. Adjust the belt tension of.

Furthermore, in the fluff suppressing device 1 of the present invention, a pair of conical friction wheels 21 and 22 and a pair of pulleys 24 and 26 are provided between the rotary shaft 21 and the rotary shaft 25 as driving force transmission means. Since the belt 25 mounted on the endless belt 15 is used, the circumference of the endless belt 15 is longer than that in the case where a bevel gear or the like is used to transmit the drive from the rotating shaft 20 of the touch roller 12 to the rotating shaft 27 of the drive pulley 13. Therefore, the durability of the belt 15 can be improved, and since the nip length can be increased, the gripping force can be improved and the fluff suppressing effect can be improved. This can be said to be particularly effective when the fluff suppressing device 1 is provided in a limited installation space between the weights of the spinning devices 2 that are usually arranged in parallel.

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.

[0019]

[Effect of device]

 The fluff suppressing device of the present invention comprises the touch roller and the endless belt that obliquely contacts the touch roller and nips the yarn as described above. One of the pair of pulleys on which the endless belt is mounted is a drive pulley. Since a pair of conical friction wheels and a drive transmission belt are interposed between the rotary shaft and the rotary shaft of the touch roller, a spun yarn having substantially no fluff can be obtained and the structure is simple. Therefore, the contact pressure of the endless belt can be easily adjusted and the durability is excellent.

[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 perspective view of a fluff suppressing device according to an embodiment of the present invention.

FIG. 3 is a plan view of the fluff suppressing device according to the embodiment of the present invention.

[Explanation of symbols] 1 fluff suppressing device 2 spinning machine 12 touch roller 13 drive pulley 14 driven pulley 15 endless belt 20, 23, 27 rotating shaft 21, 22 conical friction wheel 23 round belt 24, 26 pulley 25 belt Y spun yarn

Claims (1)

[Scope of utility model registration request] 1. A touch roller, and an endless belt that obliquely contacts the touch roller and nips a yarn, and a rotary shaft of one drive pulley of a pair of pulleys mounted with the endless belt and the touch. A fluff suppressing device characterized in that a pair of conical friction wheels and a drive transmission belt are interposed between the roller and a rotary shaft.