JP2006188786A - Draft roller-cleaning device in spinning machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a draft roller-cleaning device which can highly effectively remove viscous deposits, such as cotton sugar, from the draft roller, thereby saves spinning works and improves the efficiency of the works. <P>SOLUTION: This draft roller-cleaning device for bringing a pad body 17 extended in the axial direction of the draft roller into contact with the outer circumferential surface of the rotated draft roller to clean the outer circumferential surface of the rotated draft roller is characterized in that the cleaning device is equipped with a moving means 12 for moving the pad body from the first position P1 contacting with the outer circumferential surface of the rotated draft roller to the second position P2 apart from the outer circumferential surface of the rotated draft roller, and the moving means separates the pad from the outer circumferential surface of the rotated draft roller on the stop of the spinning machine, while synchronizing the movement of a spinning nozzle 20 disposed on the downstream side of the draft roller. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a draft device configured to convey a fiber bundle downstream while stretching, and in particular, removes deposits such as cotton sugar, fluff or dust attached to a draft roller in the draft device. The present invention relates to a draft roller cleaning device in a spinning machine.

As is well known, as shown in FIGS. 4 and 5, the draft device has a draft device D and a spinning section Sp on the downstream side thereof, in addition to a yarn manufacturing device such as a spinning machine, It is installed in textile machines such as a drawing machine. As an example of these, the draft device D in the spinning machine is composed of a plurality of pairs of draft rollers that form pairs of fiber feeding means. The draft roller is for drafting the sliver L, and includes, for example, a front roller Rf, a second roller Rs having an apron e, a third roller Rt, and a back roller Rb, all of which are top rollers Rf2, This is due to the combination of Rs2, Rt2, and Rb2 and the bottom rollers Rf3, Rs3, Rt3, and Rb3. The top rollers Rf2, Rs2, Rt2, and Rb2 and the bottom rollers Rf3, Rs3, Rt3, and Rb3 are in contact with each other and rotate in opposite directions. Therefore, the sliver L is guided between the top roller Rf2, Rs2, Rt2 and Rb2 and the bottom roller Rf3, Rs3, Rt3 and Rb3, and the top roller Rf2, Rs2, Rt2 and Rb2 and the bottom roller Rf3, Rs3, Rt3 and Rb3. Thus, the sliver L can be drafted, and the drafted fiber bundle is discharged from the front roller Rf of the draft device D.

In the draft device D as described above, during the draft period of the sliver L, deposits such as cotton sugar, fluff or dust adhere to and accumulate on each draft roller, and there are many problems in drafting the sliver. It was what brought about. In order to solve this problem, a cleaning mechanism for a front bottom roller such as that disclosed in Patent Document 1 is provided. The cleaning mechanism disclosed in Patent Document 1 is a pneumatic flute that is disposed below the front bottom roller 1 so as to suck fiber scraps such as yarn breakage, and generates a suction airflow from its suction hole. 20, a clearer pad 23 for cleaning the outer peripheral surface of the front bottom roller 1 is attached to the rear of the suction hole.

In the cleaning mechanism disclosed in Patent Document 1, when a cleaning member such as a pad is brought into contact with the outer peripheral surface of the draft roller, particularly in the case of a front bottom roller that rotates at high speed, fibers and the like adhere and accumulate between the pad and the roller surface. Therefore, when this lump suddenly leaves the pad and is caught between the front top roller and the front bottom roller, thread breakage may be induced. In order to solve this problem, the above-described Patent Document 1 discloses a configuration of a swing device 32 for intermittently separating the clearer pad 23 from the front bottom roller 1 (see FIG. 3). However, this oscillating device 32 is a mechanism provided exclusively for the above purpose, and is a draft roller device having an extremely complicated structure, and effectively uses the limited space portion. It was extremely inappropriate as a compact device.

Furthermore, in the conventional draft roller cleaning device, the fibers wound around the roller cannot be efficiently collected, and the function as a cleaner is insufficient. In particular, when a raw material containing a large proportion of cotton is used, a slightly sticky substance called cotton-specific cotton sugar is contained in the sliver L, and a raw material of 100% synthetic fiber such as polyester is used. In such a case, rolling up of the draft roller due to the oil may occur, and the cleaning effect is hardly recognized in the raw material containing such a substance that easily sticks to the roller. In short, there has been no effective top roller cleaning device for wiping and removing the cotton sugar adhering to the top roller.

Japanese Utility Model Publication No. 6-4080 (Summary, FIGS. 1 and 3)

Therefore, the present invention has been made to solve the above-described problems of the prior art, and a particularly important element is to remove sticky cotton sugar and other deposits from the draft controller very effectively. Thus, the present invention provides a draft roller cleaning device in a spinning machine in which the work of spinning is saved and the work efficiency is improved.

Further, in the present invention, the draft roller device having an extremely complicated structure effectively uses the limited space portion, and particularly acts on the front bottom roller that rotates at a high speed. It is an object of the present invention to provide a draft roller cleaning device in a spinning machine that can remove, for example, fibers deposited and deposited between roller surfaces in a labor-saving and reliable manner.

In order to achieve the above object, the present invention specifically cleans the outer peripheral surface of the draft roller by bringing the pad body extending in the axial direction of the draft roller into contact with the outer peripheral surface of the rotating draft roller. A draft roller cleaning device, wherein the cleaning device moves the pad body from a first position contacting the outer peripheral surface of the draft roller to a second position away from the outer peripheral surface of the draft roller. Characterized in that the moving means interlocks with the movement of the spinning nozzle provided on the downstream side of the draft roller and separates the pad from the outer peripheral surface of the draft roller when spinning is stopped. A draft roller cleaning device in a spinning machine is configured.

Further, in this invention, the invention according to claim 2 is the draft roller cleaning device in the spinning machine according to claim 1, wherein the width W of the pad body is the yarn path width of the fiber on the draft roller. It is larger and smaller than the axial length of the draft roller.

Furthermore, in the present invention, the invention according to claim 3 is the draft roller cleaning device in the spinning machine according to claim 1 or 2, wherein the pad body swings with respect to the spinning machine body. It consists of what is attached to the one end side of the rocking | swiveling member supported freely so that attachment or detachment is possible.

Furthermore, in this invention, the invention according to claim 4 is the draft roller cleaning device in the spinning machine according to any one of claims 1 to 3, wherein the pad body is made of rubber, soft resin or It consists of what uses a nonwoven fabric etc. as a raw material.

Furthermore, in this invention, the invention according to claim 5 is the draft roller cleaning device in the spinning machine according to any one of claims 1 to 4, wherein the pad body is an outer peripheral surface of the draft roller. A suction collector is provided for recovering deposits deposited between the draft roller and the pad body when in a second position away from the pad.

Furthermore, in this invention, the invention according to claim 6 is the draft roller cleaning device in the spinning machine according to any one of claims 1 to 5, wherein the draft roller is a front bottom roller. It is characterized by this.

According to the draft roller cleaning device of the spinning machine of the present invention, the movement for moving the pad body from the first position contacting the outer peripheral surface of the draft roller to the second position away from the outer peripheral surface of the draft roller. And the moving means is linked to the movement of the spinning nozzle provided on the downstream side of the draft roller, and the pad is separated from the outer peripheral surface of the draft roller when spinning is stopped. In the draft roller device, the limited space portion can be effectively used, and fibers deposited and deposited between the pad and the roller surface can be removed labor-saving and surely, which is extremely effective in that respect. It can be said that it acts on.

Furthermore, according to the cleaning device for the draft roller in the spinning machine according to the present invention, when the pad body is at the second position away from the outer peripheral surface of the draft roller, it adheres and accumulates between the draft roller and the pad body. By installing a suction collector to collect the attached deposits, it is possible to clean the draft roller in a state where the attached deposits such as sticky cotton sugar are reliably removed, which is also extremely effective. It can be said that it acts on.

Hereinafter, a cleaning device for a draft roller in a spinning machine according to the present invention will be described in detail based on specific embodiments shown in the drawings. FIG. 1A is a side view schematically showing a main part of a spinning machine in which a cleaning device according to the present invention is combined with a draft device, and FIG. 1B is a schematic view seen from the direction of arrow 1B in FIG. 1A. FIG. FIG. 2 shows details of the operation mode of the pad moving means in the cleaning device, and FIG. 2A is a schematic side view showing a state in which the pad body takes a first position in contact with the draft roller. FIG. 2B is a schematic side view showing a state in which the pad body takes a second position away from the draft roller. FIG. 3 is a schematic perspective view showing a specific example of an assembly for the cleaning device.

First, an air spinning machine to which the present invention is applied will be described. As shown in FIG. 5, this pneumatic spinning machine has a configuration in which a large number of spinning units U are arranged in the horizontal direction, and a sliver L is sent to the draft device D and formed on the spun yarn Y by the spinning unit Sp. Thereafter, the spun yarn Y is wound around the winding portion W via the nip roller Rn and the slab catcher Z. Reference symbol P is a service cart that performs splicing, and is configured to run to the left and right in FIG. 5 along the longitudinal direction of the spinning machine.

As shown in FIG. 1, the draft device D is a so-called four-wire draft device comprising a back roller Rb, a third roller Rt, a second roller Rs having an apron e, and a front roller Rf, each of which is a pair of top rollers Rf2. , Rs2, Rt2, and Rb2, and bottom rollers Rf3, Rs3, Rt3, and Rb3. The draft device D is a device for extending a sliver L supplied through a sliver guide T to a predetermined thickness, and is a rotational speed of each roller, that is, a rotational speed V1 of a back roller Rb and a rotational speed of a third roller Rt. The draft is performed by setting V2, the rotation speed V3 of the second roller Rs, and the rotation speed V4 of the front roller Rf to V1 <V2 <V3 <V4. The sliver L drafted to a predetermined fineness is supplied to the spinning section Sp including the spinning nozzle, and is formed on the spun yarn Y in the spinning section Sp.

As shown in FIGS. 1 to 3, the cleaning device CD according to the present invention makes a pad body 17 extending in the axial direction of the rotating front bottom roller Rf3 in contact with the outer peripheral surface of the rotating front bottom roller Rf3. The outer peripheral surface of the front bottom roller Rf3 is cleaned by the body 17. The cleaning device CD includes a cleaning device assembly 11 as shown in FIG. 3 and moving means 12 for moving the cleaning device assembly 11. A cleaning device assembly 11 according to a specific embodiment shown in FIGS. 2 and 3 is provided with a clip member 14 that is directly attached to a part 13 of the spinning machine body and one end of the clip member 14. It includes a swinging member 16 that is swingably supported via a certain pivot connection part 15. The rocking member 16 is provided with a pad body mounting member 18 for detachably mounting the pad body 17 on one end side 16a thereof with respect to the pivot connecting portion 15. One end 19a of the leaf spring 19 is fixedly supported on the end side 16b. The free end 19 b of the leaf spring 19 is in contact with the side surface 14 a of the clip member 14, and functions as a biasing body that returns the swinging member 16 around the pivot connection portion 15 in the clockwise direction. .

The pad body 17 is formed of a plate shape, and is made of rubber, soft resin, nonwoven fabric, or the like. As shown in FIG. 1B, the width dimension W1 of the pad body is larger than the yarn path width W0 of the fiber on the front bottom roller Rf3 and smaller than the axial length dimension L0 of the front bottom roller Rf3 (W0). <W1 <L0).

On the other hand, in the present invention, the moving means 12 moves away from the outer peripheral surface of the front bottom roller Rf3 from the first position P1 (see FIG. 2A) where the pad body 17 contacts the outer peripheral surface of the front bottom roller Rf3. It is for moving to the second position P2 (see FIG. 2B). In particular, in the present invention, the moving means 12 is interlocked with the movement of the spinning nozzle 20 provided on the downstream side of the front bottom roller Rf3, and the pad body 17 is moved from the outer peripheral surface of the front bottom roller Rf3 when spinning is stopped. I try to keep them apart. That is, in the present invention, when the spinning nozzle 20 is rotated counterclockwise around the pivot point 21 from the state of FIG. 2A to the state of FIG. Furthermore, the cleaning device assembly 11 is operated using this movement, and the outer peripheral surface of the front bottom roller Rf3 is moved from the first position P1 where the pad body 17 contacts the outer peripheral surface of the front bottom roller Rf3. Is moved to a second position P2 away from the center.

In the embodiment shown in FIGS. 2 and 3, a push arm member 22 is attached to the spinning nozzle 20, and the free end 22 a of the push arm member 22 swings in the cleaning device assembly 11. The member 16 is in contact with the weighted end side 16b. First, as shown in FIG. 2A, during the spinning operation, the spinning nozzle 20 is in a fixed position, and the swinging member 16 in the cleaning device assembly 11 is pushed counterclockwise against the leaf spring 19. The pad body 17 is moved to take a first position P1 where the pad body 17 contacts the outer peripheral surface of the front bottom roller Rf3, and the outer peripheral surface of the front bottom roller Rf3 is cleaned.

When a yarn breakage or the like occurs during the spinning operation, spinning is stopped and the spinning nozzle 20 is moved counterclockwise from a fixed position to create a work space. In conjunction with the turning operation of the spinning nozzle 20, as the push arm member 22 is retracted, the swinging member 16 is rotated clockwise by the urging force of the accompanying leaf spring 19. The pad body 17 is separated from the outer peripheral surface of the front bottom roller Rf3. At this time, a lump of fluff accumulated by the suction collector 23 located below the front bottom roller Rf3 is collected.

In the present invention, there is provided an air blowing means for more reliably blowing off fiber scraps adhered and accumulated between the two while the pad body 17 is cleaning the outer peripheral surface of the front bottom roller Rf3. You can also. The air blowing means is operated so as to operate while the pad body 17 is away from the outer peripheral surface of the front bottom roller Rf3.

FIG. 1A is a side view schematically showing a main part of a spinning machine in which a cleaning device according to the present invention is combined with a draft device, and FIG. 1B is a schematic view seen from the direction of arrow 1B in FIG. 1A. FIG. FIG. 2 shows details of the operation mode of the pad moving means in the cleaning device, and FIG. 2A is a schematic side view showing a state in which the pad body assumes a first position in contact with the draft roller. FIG. 2B is a schematic side view showing a state in which the pad body takes a second position away from the draft roller. FIG. 3 is a schematic perspective view showing a specific example of the cleaning device assembly for the cleaning device. FIG. 4 is a schematic side view showing an outline of a main part of a spinning machine formed by combining a conventional typical draft device. FIG. 5 is a front view showing the entire spinning machine to which the present invention is applied.

Explanation of symbols

Rf Front roller Rs Second roller Rt Third roller Rb Back roller D Draft device L Sliver Sp Spinning portion Rf2, Rs2, Rt2, Rb2 Top roller Rf3, Rs3, Rt3, Rb3 Bottom roller CD Cleaning device 11 Cleaning device assembly 12 Moving means 13 Part 14 of spinning machine body Clip member 15 Pivoting support portion 16 Oscillating member 17 Pad body 18 Pad body mounting member 19 Leaf spring 20 Spinning nozzle 21 Pivoting point 22 Pushing arm member 23 Suction collector P1 First contact with roller Position P2 Second position away from the roller W1 Pad body width dimension W0 Yarn path width dimension L0 Front bottom roller length dimension

Claims (6)

A draft roller cleaning device for cleaning the outer peripheral surface of the draft roller by bringing a pad body extending in the axial direction of the draft roller into contact with the outer peripheral surface of the rotating draft roller, wherein the cleaning device Moving means for moving from a first position contacting the outer peripheral surface of the draft roller to a second position away from the outer peripheral surface of the draft roller, the moving means being downstream of the draft roller; A cleaning device for a draft roller in a spinning machine, wherein the pad is separated from the outer peripheral surface of the draft roller when spinning is stopped in conjunction with the movement of a spinning nozzle provided in the spinning machine. The draft in a spinning machine according to claim 1, wherein the width W of the pad body is larger than the yarn path width of the fiber on the draft roller and smaller than the axial length of the draft roller. Roller cleaning device. The said pad body consists of what is detachably attached to the one end side of the rocking | swiveling member currently supported so that rocking | fluctuation is possible with respect to the spinning machine body. Cleaning device for draft rollers in spinning machines. The cleaning device for a draft roller in a spinning machine according to any one of claims 1 to 3, wherein the pad body is made of rubber, soft resin, nonwoven fabric, or the like. When the pad body is at a second position away from the outer peripheral surface of the draft roller, a suction collector is provided for collecting deposits deposited between the draft roller and the pad body. A cleaning device for a draft roller in a spinning machine according to any one of claims 1 to 4. 6. The draft roller cleaning device for a spinning machine according to claim 1, wherein the draft roller is a front bottom roller.

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