JPH0719369U - Draft roller cleaning device - Google Patents

Abstract

(57) [Abstract] [Purpose] Removal of fiber waste adhering to the draft roller [Configuration] The cleaning belt 10 that contacts the peripheral surfaces of the draft rollers 3t, 4t, 5t is rotated in the same direction as the rotation direction of the draft roller. Give a speed difference and drive.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cleaning device for a draft roller used in a spinning machine.

[0002]

[Prior art]

 In a drafting device used in a spinning machine, a sliver is passed between a plurality of pairs of top rollers and bottom rollers to draft the sliver. That is, the sliver is passed through the back roller pair, the third roller pair, the middle roller pair, and the front roller pair, which are a pair of top roller and bottom roller, and the sliver is desired to have a desired rotational speed difference. To the thickness of.

[0003]

[Problems to be solved by the device]

 In the above-mentioned draft device, since the sliver is stretched while being pressed against each other between the pair of rollers, fiber dust such as cotton dust, dust, and foreign matters adheres to the surface of each roller. If this fiber waste adheres, it not only causes draft defects, but it also causes slabs and eventually yarn breakage.Therefore, it is necessary to regularly clean the draft roller to remove fiber waste. There is.

In view of the above-mentioned problems, the present invention automatically removes the fiber waste adhering to the draft roller to prevent draft failure and yarn breakage, and as a result, a draft roller capable of stable spun yarn production. The cleaning device is proposed.

[0005]

[Means for Solving the Problems]

 In the draft roller cleaning device of the present invention, in order to achieve the above object, the cleaning surface of the cleaning member, which comes into contact with the peripheral surface of the draft roller, has a speed difference in the same direction as the rotation direction at the contact position of the draft roller. It is designed to slide with.

[0006]

[Action]

 In this draft roller cleaning device, the cleaning surface of the cleaning member comes into contact with the draft roller and slides at a speed difference in the same direction as the rotation direction of the draft roller to rub against the peripheral surface of the draft roller. Remove the fiber waste adhering to the.

[0007]

【Example】

 1 and 2 show an embodiment of the present invention. Hereinafter, details of embodiments will be described with reference to the drawings.

First, a 4-wire type draft device 2 to which the draft roller cleaning device 1 of the present invention is applied will be described. Each of the draft devices 2 is supported by a frame 21 and is driven and rotated. Each of the back, third, middle, and front bottom rollers 3b, 4b, 5b, and 6b and the bottom roller 3 is driven to rotate while being pressed against the bottom rollers. , Middle and front top rollers 3t, 4t, 5t, 6t. An apron belt e is mounted on each of the middle top roller 5t and the middle bottom roller 5b. Further, 12 is a sliver guide, and 13 is a width condenser.

At the end of the frame 21, a draft cradle 7 is swingably supported by a support shaft 23 fixed by a bracket 22, and the draft cradle 7 includes a back, a third, a middle, and a front. Roller shafts 3s, 4s, 5s, 6s are supported, and the top rollers 3t, 4t, 5t, 6t are rotatably attached to the roller shafts. Then, by lowering the draft cradle 7, each top roller is brought into pressure contact with each bottom roller.

Next, the cleaning device 1 will be described. In addition to the roller shafts 3s, 4s, 5s, 6s described above, the draft cradle 7 has a cleaner behind the back roller shaft 3s and slightly above the middle roller shaft 5s and the front roller shaft 6s. Support shafts 8s and 9s are provided, and a back cleaning roller 9 and a front cleaning roller 8 are rotatably supported on the cleaner support shafts 8s and 9s, respectively. A cleaning belt (cleaning member) 10 is wound around the cleaning rollers 8 and 9, and the cleaning belt 10 and the apron belt e, the third top roller 4t, and the back top roller 3t are in contact with each other to a certain extent. Contact with pressure.

The cleaning belt 10 is an endless belt made of a rubber material, and the cleaning surface F that comes into contact with each top roller has fine irregularities 24 arranged in a diagonal pattern with respect to the running direction of the belt 10. Is provided. The irregularities 24 may be circular protrusions or the like.

Further, pulleys 9p and 11p are fixed to an end portion of the back cleaning roller 9 and a line shaft 11 which is installed at the rear of the draft device and is driven and rotated, and a support shaft 23 for supporting the draft cradle 7 is further provided. Is provided with a pair of pulleys 23p rotatably fixed in parallel with each other. Timing belts 14 and 15 are respectively wound around the pulleys 9p and 23p and between the pulleys 23p and 11p.

Next, the operation of the above embodiment will be described.

During spinning, the draft cradle 7 is closed, and the top rollers 3t, 4t, 5t, 6t are pressed against the bottom rollers 3b, 4b, 5b, 6b, respectively, and are rotated counterclockwise in the figure. The power is transmitted from each of the bottom rollers, and the driven rollers rotate in the clockwise direction. In the middle top roller 5t, the apron belt e mounted on the roller 5t also rotates.

On the other hand, the back cleaning roller 9 receives a driving force from the line shaft 11 driven and rotated by the timing belts 14 and 15 and rotates counterclockwise in FIG. 1, and the back cleaning roller 9 and the front cleaning roller 9 are rotated. The cleaning belt 10 mounted on 8 is rotated counterclockwise.

There is a speed difference between the rotational traveling speed of the cleaning belt 9 and the rotational peripheral speeds of the middle top roller 5t, the third top roller 4t, and the front top roller 3t.

The sliver S passes between each top roller and bottom roller and is drafted. At this time, fiber dust such as dust, dust, and foreign matter adheres to the surface of each top roller 3t, 4t, 5t, 6t. On the other hand, while the cleaning belt 10 is in contact with the top rollers 3t, 4t, 5t, the peripheral surfaces of the respective top rollers rotate in the same direction with a speed difference, and the fiber dust attached to each top roller is The unevenness 24 provided on the cleaning surface of the cleaning belt 10 removes it while peeling it off or rolling it.

Although the cleaning device of the present invention is applied to the back top roller, the second top roller and the middle top roller of the draft device in the above-mentioned embodiments, it may be applied to the front top roller and the bottom roller. . Further, as the cleaning member, it is possible to use a roller instead of the endless belt.

Further, since the irregularities 24 provided on the cleaning surface F are arranged in a slanting grid pattern with respect to the traveling direction of the cleaning belt 10, each top roller is moved along with the traveling of the cooling belt 10. 3t, 4t, over the entire circumference of the apron belt e, the convex portions of the concave portion of the cleaning surface F are alternately in contact, and the fly cotton stripped off is scraped out along the arrangement direction of the concave portions, and the cleaning surface F The situation in which the cleaning effect is reduced without falling off with the cotton dust etc. does not occur.

[0020]

As described above, in the draft roller cleaning device according to the present invention, the cleaning surface of the cleaning member that comes into contact with the peripheral surface of the draft roller is in the same direction as the rotation direction at the contact position of the draft roller. Since it slides with a speed difference, the cleaning surface rubs the peripheral surface of the draft roller to remove the fiber waste adhering to the peripheral surface of the draft roller, preventing draft failure and yarn breakage, and as a result, stable The spun yarn can be manufactured.

[Brief description of drawings]

FIG. 1 is a side view showing a draft device including a cleaning device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a part of the cleaning device.

[Explanation of symbols]

 1 Cleaning device 3t Back top roller 4t Third top roller 5t Middle top roller 6t Front top roller 10 Cleaning belt F Cleaning surface

Claims (1)

[Scope of utility model registration request] 1. A cleaning device for a draft roller, wherein a cleaning surface of a cleaning member, which comes into contact with the peripheral surface of the draft roller, slides at a speed difference in the same direction as the rotating direction of the contact position of the draft roller. .