JPH0545688B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a roller clearer that provides intermittent motion to the clearer in order to automatically remove short fiber cotton dust adhering to the draft roller of a spinning machine. This invention relates to an intermittent exercise device.

Conventional technology and its problems Since then, short fibers and cotton dust from Shino yarn have adhered to the draft roller of a spinning machine, causing problems such as thread fuzz and winding of fibers around the roller, which may affect yarn quality or operational issues. It is becoming a problem.

In order to solve these problems, a clearer with flocked hair on the roller is used in contact with the draft roller, but its ability to remove deposits is low and cannot be completely removed, and the clearer itself needs to be cleaned frequently. There is.

Therefore, in order to eliminate the above-mentioned drawbacks, a device has been proposed in which the end surface of the elastic rubber tongue piece is brought into continuous contact with the draft roller. However, since the above-mentioned clearer has elastic rubber tongues that are in continuous contact with the draft roller, the accumulated deposits are further pressed and bonded, causing thread breakage, and wear due to wear of the tongues. The service life is short, and there are also problems such as the removed deposits adhere to the back side of the elastic rubber tongue and get mixed into the threads, resulting in defective threads.

Means for solving the problems The present invention solves the problems,
The cam roller that comes into contact with the rotating draft roller or shaft of the spinning machine is used to prevent the rubber blade of the clearer from being worn out, to extend its life, and to completely remove deposits. The shaft center is parallel to the draft roller or shaft, etc., and is rotatably attached to a bracket attached to the clearer body, so that the clearer is intermittently in contact with the draft roller. be.

Embodiment Next, one embodiment of the present invention will be described in detail based on the drawings.

1 and 2 are a perspective view and a side view showing the intermittent movement device for a draft roller clearer according to the present invention.

In the figure, reference numeral 1 denotes a rubber blade. This rubber blade 1 is made of a rubber plate made of natural rubber or synthetic rubber and has a required thickness (for example, about 2 mm), and is held between a clearer body 3 and a presser plate 4. The clearer is constructed by protruding by a required length (for example, about 15 mm) and fixing it with a clip 5 so as to appropriately contact the front bottom roller 2 of the spinning machine.

By the way, the spinning machine used in this embodiment has a spindle distance of 76 mm, and has 6 spindles per staff. In this case, the length of the clear rubber blade is 420 mm.

Swing bar mounting brackets 6, 6 are fixed to both ends of the clearer main body 3, and the brackets 6, 6 are attached to the brackets.
6, one end of the swing bars 7, 7 is fixed with a screw 8 and a thrust screw 9, respectively. A nylon bearing 11 having a through hole 10 is fixed to the other end of the swing bars 7, 7 with a screw 12.

Also, approximately in the center of the clearer body 3 is a gauge adjustment bracket 14 provided with a thrust screw 13 at the bottom.
is fixed, and a cam roller mounting bracket 15 is swingably mounted to this gauge adjustment bracket 14 with a screw 16. The cam roller mounting bracket 15 has an L-shaped projection 17 bent at right angles below the screw mounting portion.
7 is formed to abut against the thrust screw 13 of the gauge adjustment bracket 14. Further, an elongated hole 18 is provided at the other end of the cam roller mounting bracket 15, and a cam roller 19 is mounted therein so that its position can be adjusted.

As described above, the cam roller 19 comes into contact with the rotating draft roller and shaft of the spinning machine, and their axes are parallel to each other, and the bracket 1 attached to the clearer body
It is rotatably attached to 5.

As shown in FIGS. 3 and 4, the cam roller 19 is made of urethane rubber with a hardness of about 60°.
It has an outer diameter of 25 to 40 mmφ and a width of 10 mm, and a notch 20 of 3 to 10 mm is provided in a part of its outer periphery.
A part of it is connected to the outer periphery in a smooth curve. Further, a fitting hole 21 is provided in the center, and a bushing 24 for a sliding bearing having a low coefficient of friction such as Teflon, oil-impregnated nylon, acetal, etc. and having a fitting hole 22 and a flange 23 is fitted into the fitting hole 21.

A shaft 25 is loosely fitted into the bush 24 and fixed to the cam roller mounting bracket 15 with a nut 23 while being held by a washer 26.

When the intermittent movement device of the kuriyara formed in this way is swingably attached to the pedestal of the Shinoito rope stretching device, the pedestal attachment hole 29 is inserted as shown in FIGS. 1 and 2.
One end of the swing pin 31 is fixed to a plate 30 having a mount 30, and the plate is fixed to a pedestal 32. After inserting the torsion spring 33 into the other end of the swing pin 31, the other end of the swing pin 31 is loosely fitted into the nylon bearing 11 fixed to the other end of the swing bar 7, and one of the torsion springs 33 Hang one arm on the stand and the other arm on the swing bar, and connect the rubber blade 1 to the front bottom roller 2 and the cam roller 19 to the middle bottom roller 34 to dry the draft roll clearer of the spinning machine. Configure exercise equipment.

The clearer intermittent movement device configured as described above moves the cam roller 19 along the elongated hole 18 by loosening the nut 28, and moves the cam roller 19 to a position where it appropriately contacts the middle bottom roller 34, that is, the center is the swing pin 81, After adjusting the radius to be around the circumference of the cam roller 19, the nut 23 is tightened to install the cam roller 19 in a predetermined position.

Also, when the notch 20 of the cam roller 19 comes into contact with the middle bottom roller 34 by adjusting the thrust screw 13 provided below the bracket of the clearer main body 3,
Make sure that the rubber blade 1 bites into the front bottom roller 2 appropriately, for example, by about 0.5 to 1.0 mm.

If the degree of abutment of the rubber blade 1 is different between the left and right sides, it is set so that the right and left sides are evenly abutted by adjusting the thrust screws 13.

Incidentally, as shown in FIG. 5, the cam roller 35 having an eccentric rotation center may be used instead of the notch. Further, instead of the middle bottom roller that the cam roller comes into contact with, the cam roller may come into contact with a front bottom roller, a back bottom roller, or another rotating shaft such as the shaft of a jump prevention device. Moreover, the number of notches may be two or more.

Operation The operation of the draft roller clearer intermittent motion device of the present invention configured as described above will be explained. When the spinning frame is operated, the draft roller rotates, and therefore the cam roller 19, which is in contact with the middle bottom roller 34, also rotates at the same time. When the notch 20 of the cam roller 19 comes into contact with the middle bottom roller 34, the rubber blade 1 swings upward around the swing pin 31 and comes into contact with the front bottom roller 2.
Remove adhering materials such as short fibers.

Further, as the roller rotates, the smooth curved portion of the cam roller notch rotates along with the middle bottom roller 34, and the rubber blade 1 gradually swings downward. Therefore, the rubber blade 1 is separated from the front bottom roller 2 again. At this point of separation, the deposits removed by the rubber blade fall downward.

As described above, according to the present invention, it is possible to reliably and continuously provide the front bottom roller with an intermittent motion in which the clearer is brought into contact with the clearer intermittently, and the rollers in the draft part of the spinning frame can be kept clean.

Effects of the Invention Since the present invention has the above-mentioned configuration, the rubber blade comes into contact with and separates from the draft roller intermittently, so that wear of the rubber blade is almost eliminated, and the life of the rubber blade is extended. In addition, short fibers from Shinoito,
Even if cotton dust or the like adheres to the draft roller, it is completely removed by the swinging motion of the rubber blade, and the surface of the draft roller can be kept clean at all times. As a result, high-quality yarn is produced without yarn fuzz or yarn breakage, and the number of man-hours required for removing deposits and splicing yarns is reduced, resulting in improved labor efficiency.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a clearer intermittent motion device for a draft roller of a spinning machine showing one embodiment of the present invention;
The figure is a side view showing the state in which the cam roller is installed on the frame of the thread drafting device of the same spinning machine, FIG. 3 is a front view showing an example of the cam roller used in the present invention, and FIG. 4 is a cross section showing the state in which the cam roller is attached to the bracket. FIG. 5 is a front view showing another embodiment of the cam roller. 1...Rubber blade, 2...Front bottom roller, 3...Clearer body, 4...Press plate, 5...
... Clip, 6 ... Swing bar mounting bracket, 7
...Swing bar, 8, 12, 16...Screw, 9...
Thrust screw, 10... Through hole, 11... Nylon bearing, 13... Thrust screw, 14... Gauge adjustment bracket, 15... Cam roller mounting bracket, 17... Protrusion, 18... Oblong hole, 19... Cam roller, 20...notch, 21, 22...fitting hole,
23...Flange, 24...Button, 25...
Shaft, 26...Washer, 28...Nut, 29
... Frame mounting hole, 30... Plate, 31... Rocking pin, 32... Frame, 33... Torsion spring, 3
4...Middle bottom roller, 35...Eccentric cam roller.

Claims (1)

[Scope of Claims] 1. Swing bars are removably provided in a direction substantially perpendicular to the plane of the rubber blade at both ends of a clearer main body on which a rubber blade is removably arranged, and in addition to each of the above swing bars, A bearing is placed at the end, and a swing pin fixed to the roller stand of the draft part is supported on the bearing, a torsion spring is loosely fitted to the swing pin, and a long hole is provided in the clearer body to attach the cam roller. A cam roller having a notch in a part of its outer periphery is rotatably arranged in the elongated hole so that its axis is parallel to the draft roller. Clearer intermittent movement device for draft rollers of spinning machines. 2. A clearer intermittent motion device for a draft roller of a spinning machine as set forth in claim 1, wherein a part of the bracket attached to the clearer body is used as a gauge adjustment section and a thrust screw is provided. 3. An intermittent movement device for a clearer for a draft roller of a spinning machine as set forth in claim 1, wherein one end of a cam roller mounting bracket is provided with an L-shaped protrusion that abuts a thrust screw.