JPH0661975U - Fluff suppressor - Google Patents

Abstract

(57) [Abstract] [Problem] To provide a fluff suppressing device capable of obtaining a spun yarn that is substantially free of fluff and easily setting a nip pressure. In a fluff suppressing device including a pair of nip members that obliquely contact each other and nips a yarn, the one nip member is supported so as to be capable of coming into contact with and separating from the other nip member, and to the other nip member. Positioning means for one nip member is provided.

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 a pair of draft rollers of 3 to 5 lines, and then, by an air spinning device provided on the downstream side of the draft 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.

[0003] Therefore, a fluff suppressing device has been developed which feeds the spun yarn while nipping the spun yarn with a touch roller that is driven and rotated to eliminate the fluff of the spun yarn and a belt that obliquely contacts the touch roller. The contact pressure of the endless belt was set by changing the mounting position of the support member that rotatably supports the endless belt with respect to the frame, which required time and effort.

[0004]

[Problems to be solved by the device]

 In view of these points of the prior art, the present invention has an object to provide a fluff suppressing device that can obtain a spun yarn that is substantially free of fluff and that can easily set the nip pressure. Is.

[0005]

[Means for Solving the Problems]

 In a fluff suppressing device composed of a pair of nip members that obliquely contact each other and nips a yarn, one of the nip members is supported so that it can be brought into contact with and separated from the other nip member, and one of the other nip members is supported. The nip member positioning means is provided.

[0006]

[Operation] When the spun yarn introduced into the fluff suppressing device from the upstream side is nipped by the pair of nip members, false twisting and rubbing action are given, whereby the fluff on the spun yarn surface is caught in the yarn itself. It is sent out as spun yarn without fluff. If one of the nip members is positioned by the positioning means while the nip pressure of the pair of nip members of the fluff suppressing device is at an appropriate value, one nip member can be replaced with the other nip when the nip member is replaced. If the one nip member is positioned by the positioning means and pressure-contacted to the other nip member after the members are replaced with each other, the nip pressures of the pair of nip members are set to appropriate values.

[0007]

【Example】

 An embodiment of the present invention 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, a 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 four-wire draft device 4 including a front roller pair 4d, an air spinning device 5, and a nip roller. The delivery roller 6 which is in pressure contact with 6a, the slack tube 7, the yarn clearer 8 for detecting yarn defects, and the winding device 9 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. The fluff suppressing device 1 will be described below with reference to the drawings.

2 to 4, a fluff suppressing device 1 includes a touch roller 12 that is driven and rotated, 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.

As the touch roller 12, a rubber roller having a metallic core circumferential surface covered with rubber is used, and as the endless belt 15, a rubber flat belt is used.

The drive pulley 13 is a pulley with a collar formed with collars 13 a and 13 b on the outer peripheral edges thereof respectively to prevent the endless belt 15 from departing, and the collar 13 a on the yarn sending side of the drive pulley 13 is a yarn introducing side. It has a larger diameter than the brim 13b. This is to prevent the endless belt 15 from coming off to the yarn delivery side due to the contact with the drivingly rotating touch roller 12 and preventing it. In addition, the collar 13b on the yarn introducing side is fixed to the thickness of the endless belt 15 in order to avoid contact with the touch roller 12. The drive pulley 13 is fixed by a screw 19 to one end of a rotary shaft 27 rotatably supported by the support member 18.

A bevel gear 26 is formed on the other end of the rotary shaft 27, and the bevel gear 26 is formed on the rotary shaft 24 of the friction roller 23 rotatably supported by the support member 18. Further, the friction roller 23 is in pressure contact with the roller 22 provided on the drive shaft 21 of the touch roller 12, whereby the rotation of the drive shaft 21 can be prevented by rotating the roller 22, the friction roller 23, the rotary shaft 24, It is transmitted to the drive pulley 13 via the pair of bevel gears 25, 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 28 provided on the support member 20, the support member 20 is fixed to the support member 18, and the support member 18 is further mounted on a bracket 30 by a bolt (not shown). Is stuck to.

The bracket 30 is swingably supported by inserting a support shaft 33 protruding in parallel with the touch roller rotation shaft 21 at the tip of a frame 32 into a shaft hole 31 formed in the bracket 30. Further, the snap ring 34 is locked to the tip of the support shaft 33 to prevent the bracket 30 from coming off. Further, a guide pin 36 provided in the frame 32 in parallel with the support shaft 33 is engaged with an elongated hole 35 provided in an arcuate position centered on the shaft hole 31 of the bracket 30 to swing the bracket 30. Is restricted within the range of the elongated hole 35, and wobbling of the bracket 30 is suppressed.

The tip portion 38 is fixed to the frame 32, the tip portion 38 is bent in an inverted L shape, and the base portion is attached to the tip portion 38 of the support member 37 located on the orbit of the swing of the bracket 30. A positioning bolt 40 with which a lock nut 39 is screwed is screwed onto the lock nut 39 so that the tip of the positioning bolt 40 can come into contact with the one end face 30a of the bracket 30, and the positioning bolt 40 swings downwards of the bracket 30. Movement is regulated.

In the rear of the bracket 30, a support shaft 41 provided on the frame 32 is loosely fitted to the base of the lever 42 so that the lever 42 is swingable, and the lever 42 swings. A spring 44 is externally fitted and fixed to the shaft portion 43 projecting forward in the direction, and when the lever 42 is swung forward, the tip end of the spring 44 is restricted from swinging downward by the positioning bolt 40. The lever 42 contacts the rear end surface 30b of the bracket 30 and is locked by a locking member 45 projecting from the side surface of the frame 32 at a position where the lever 42 swings further forward against the biasing force of the spring 44. It has become so.

A thread guide piece 29 is provided on the lower surface of the support member 20 to prevent the thread from flowing in the driving direction of the endless belt 15 and deviating from the nip surface between the endless belt 15 and the touch roller 12. To prevent.

Next, the operation will be described based on the above embodiment.

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 29 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, an arrow A The spun yarn Y is fed while being nipped by the endless belt 15 which is driven in this direction. At this time, the spun yarn Y is given a false twisting and rubbing action. The spun yarn Y is caught and sent out to the downstream side as a substantially fluff-free spun yarn Y, and is wound as a package P in a winding device 9 through a yarn clearer 8.

The setting of the contact pressure of the endless belt 15 to the touch roller 12 in the fluff suppressing device 1 is performed as follows. First, the lock nut 39 screwed into the positioning bolt 40 is loosened, and the positioning bolt 40 is rotated to be separated from the one end surface 30a of the bracket 30, and the lever 42 is shown in FIG. As described above, the engaging member 45 is disengaged and rocked backward to release the biasing force of the spring 44 on the bracket 30.

In this state, a pressure measuring device (not shown) is brought into contact with the upper surface of the support member 18 to bring the endless belt 15 into pressure contact with the touch roller 12, and the contact pressure of the endless belt 15 with respect to the touch roller 12 shows an appropriate value. At the position, the positioning bolt 40 is rotated to bring the tip of the bolt 40 into contact with the one end face 30a of the bracket 30, and the bolt 40 is fixed with the lock nut 40 to position the bracket 30. Then, by swinging the lever 42 and engaging with the engaging portion 45 as shown in FIG. 3, the rear end surface 30b of the bracket 30 is pressed by the spring 44 and the bracket 30 is fixed. Of the friction roller 23 is set at the same time in the fluff suppressing device 1 of the illustrated example. The contact pressure on the roller 22 is also set.

In the fluff suppressing device 1, when the belt 15 is converted due to wear of the endless belt 15 or the like, the lever 42 is disengaged from the locking member 45 and rocked in the direction of arrow B. Then, when the pressing state of the spring 44 against the bracket 30 is released, the bracket 30 is guided by the guide pin 36 and swings in the direction of the arrow C, whereby the bracket 30, the support member 18, the support member 20 and The driving pulley 13, the driven pulley 14, and the friction roller 23, which are rotatably supported by the supporting members 18 and 20, are integrally lifted up as shown by an arrow D, and the endless belt 15 is separated from the touch roller 12. At the same time, the pressure contact state between the friction roller 23 and the friction roller 22 is released, so that the endless belt 15 The driving rotation is stopped, and the endless belt 15 is replaced in this state.

Then, after the belt replacement, the bracket 30 is swung again in the opposite direction, brought into contact with the tip of the positioning bolt 40 on the one end face 30a of the bracket 30, and further the lever 42 is swung. When the bracket 30 is locked by the locking member 45 and fixed by the spring 44, the bracket 30 is fixed at the position before the belt is replaced, and the contact pressure of the endless belt 15 to the touch roller 12 is proper. The friction roller 23 is pressed against the friction roller 22, and the endless belt 15 is driven and rotated.

Although the touch roller 12 and the endless belt are used as the pair of nip members in the above-described embodiment, a roller may be used instead of the endless belt 15 or the touch roller 12 may be used. Alternatively, an endless belt may be used. Further, instead of using the pair of friction rollers 22 and 23 and the pair of bevel gears 25 and 26 as the drive transmitting means to the endless belt side, the drive may be transmitted by a belt or the like. Further, in the above-described embodiment, an example in which the fluff suppressing device 1 of the present invention is applied to the spinning machine 2 including the air spinning device 5, but the present invention is not limited to this, and other spinning machines, It can be applied to various textile machines such as winders where fluff suppression is effective.

[0025]

[Effect of device]

 The fluff suppressing device of the present invention is a fluff suppressing device comprising a pair of nip members that obliquely contact each other and nips a yarn as described above. In addition, since the positioning means for positioning one nip member with respect to the other nip member is provided, it is possible to obtain a spun yarn that is substantially free of fluff, and the nip pressure can be easily set when replacing the nip member. 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 side view of the fluff suppressing device according to the embodiment of the present invention.

FIG. 4 is a side view showing a state when replacing the belt for suppressing fluff according to the embodiment of the present invention.

[Explanation of symbols]

 1 Fluff Suppression Device 2 Spinning Machine 12 Touch Roller 13 Drive Pulley 14 Driven Pulley 15 Endless Belt 18, 20, 37 Supporting Member 30 Bracket 32 Frame 33, 41 Spindle 39 Lock Nut 40 Positioning Bolt 42 Lever 44 Spring 45 Locking Member Y Spun yarn

Claims (1)

[Scope of utility model registration request] 1. A fluff suppressing device comprising a pair of nip members that are in contact with each other obliquely and nips a yarn, wherein one of the nip members is supported so as to be able to come into contact with and separate from the other nip member, and the other nip is also provided. A fluff suppressing device characterized in that a positioning means for positioning one nip member with respect to the member is provided.