JPS61140620A - Drive device of roller - Google Patents

Abstract

PURPOSE:To prevent slipping between a shaft and a roller by providing a clutch formed by a receiving unit corresponding to a claw projecting in a transmission disc movably along the drive shaft. CONSTITUTION:A drive shaft 11 is fixed by a disc 15 through a key 12, a lock nut 13 and a turning stop metal fitting 14, and on one end side of the disc, an annular slit groove 16 is made and a claw 17 projecting in the diametral direction is provided on its inlet and a friction transmission plate 19 is fixed to a step face formed on the other side of the disc, and the plate 19 is pressed to a step face 29 of a roller body 28. And a clutch 22 mounted on the drive shaft 11 through a bearing 27 has a connection ring 23 formed by a receiving claw 24 which can engage with the claw 17 of the disc 15.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a roller drive device for threads, etc., in particular, a roller drive device for threads, etc., which winds threads that have been interrupted in the process of drawing and winding synthetic fibers on a roller.
The present invention relates to a drive device for a waist roller that also serves to remove the yarn after a certain amount of time.

<Prior art> In the synthetic fiber manufacturing process, especially in the drawing/winding process for industrial materials, when a large number of threads are threaded from a structural drawing machine to a winding machine, it is necessary to keep the operation at a low speed and do so manually. After passing through a drawing machine, each thread is threaded onto the waist bobbin of each winding machine.

At this low yarn speed, the drawing temperature conditions, oil application conditions, etc. are not appropriate compared to those at high yarn speeds, so the yarn that has begun to be wound by the winding machine will be wound at a high yarn speed one after another after all spindle threading is completed. A so-called switching operation is performed in which the bobbin on the take-up machine side is rotated to switch to the new bobbin and winding is performed on this bobbin, thereby distinguishing between low yarn speed and high yarn speed yarns for winding. However, during this switching operation, the timing may not be right and the yarn may break. Then, the yarn tension controller of the winding machine is activated and automatically cuts the corresponding yarn at the entrance of the drawing machine and cuts off the supply to the drawing machine, but the yarn remains inside the drawing machine.
As the thread tension decreases, in some cases, the thread may become twisted during stretching or become entangled with the threads of other normal weights in the vicinity, inducing breakage of the normal weight. For this reason, a waist roller device is installed between the drawing machine and the winding machine to pull and wind the broken yarn. As shown in Figure 3, this device consists of two rollers 1 and 2, arranged at both ends of a disc 3 rotatably mounted on a machine base 6, and from the center of the disc 3. Each roller1.
2 is always driven at the same circumferential speed as the yarn speed. One of the two rollers 1.2 is used for tensioning and winding the yarn Y; for example, it is divided by a comb tooth guide 7 and passes through the roller 1 via the guide roller 8. If one of the yarns breaks and the tension decreases, that yarn can be easily wound around the roller 1, and the remaining yarn in the drawing machine can be successfully used without adversely affecting other yarns. It can be taken out. The wound yarn is removed manually by rotating the disk 3 by 180 degrees using the handle 4, stopping the roller 1. on the other hand,
The roller 2 on the other side, which was on standby, is designed to take over the role of pulling and winding when the disk rotates 180 degrees.

The shaft of this roller 1.2 meshes with a gear connected to a drive means provided so as to be located on the central axis of the disc, and rotation is constantly transmitted.Rotation is transmitted between the roller and the shaft by a friction conduction plate made of cowhide or the like. has been done. Therefore, if the roller is moved in the axial direction by the shifter plate 5 with respect to the shaft so that the friction conduction plate is separated, the a-roller will stop immediately, and the yarn removal operation can therefore be performed. Moreover, by moving the roller in the opposite direction in the axial direction again, the roller can be rotated instantaneously, and the next yarn breakage can be handled. However, in recent years, it has become necessary to use the roller to further increase the yarn tension and reduce the winding tension.

Originally, a new roller and its drive system should have been installed, but due to limitations in installation space and reduction in capital investment, it was necessary to use the roller. However, this roller is driven by a friction conduction plate, which causes it to slip during operation.
There was a problem that a predetermined thread quality could not be obtained.

Measures were taken to prevent this slip, such as increasing the size of the friction conduction plate or increasing the force with which the friction conduction plate was pressed, but none of these measures could reliably prevent slip.

<Background of the Invention> In order to solve this problem, the inventor of the present invention has conducted various studies on a method that allows the roller to rotate without slipping on a shaft that is constantly rotating, and also allows the roller to sometimes stop rotating. Layered.

As a result, it was found that slipping could be prevented by using the conventional friction transmission device as is and adding interlocking pawls.

The shaft and roller rotate as a unit due to frictional conduction. At this time, the relative speed between the shaft and the row is close to 0, so the claws can easily engage with each other, and conversely, they can also easily separate.

The present invention has been made based on the discovery that if the relative speeds of the shaft and roller are close enough, the claws can engage and separate from each other, which can be easily achieved by adding a few additions to conventional equipment.

<Structure of the Invention> That is, the present invention provides a roller driving device for processing fibers, etc., in which a plurality of claws are provided radially protruding from an annular hollow surface formed on one end side, and a roller body is provided on the other end side. □ A transmission disk having a conductive plate is fixed to the drive shaft, and a clutch having a receiving part corresponding to the pawl of the transmission disk is provided so as to be movable along the drive shaft, and the clutch is connected to the drive shaft. This roller drive device is characterized in that it is movably connected to the roller body in the axial direction via parallel parallel pins.

<Example> Hereinafter, the present invention 8A will be explained based on the drawings.

Figure 1 is a cross-sectional view of a main part of a ρ-lar drive section showing an embodiment of the present invention. In the figure, reference numeral 11 denotes a drive shaft connected to a drive source (not shown).
is fixed. One end side of the disk 15 (drive source side)
An annular slit groove 16 is carved, and a claw 17 protruding in the radial direction is provided at the entrance thereof, and a step surface 18 formed on the other side is made of doughnut-shaped cowhide (other materials may be used). A friction conduction plate 19 is fixed.

It is pressed against a stepped surface 29 of a roller main body 28, which will be described later, so that conduction occurs between them. 2o#: tK A coil inserted between a holder (not shown) fixed to the moving shaft 11 and a spring receiver 21 fixed to the roller body springs, and its pressing force pushes the roller body 28 towards the disk 1.
51111 is always pressed.

22 is a bearing 27 on the drive shaft 11 adjacent to the disk 15;
It is a clutch installed through the disc 15111
1 is provided with a connecting link 23 formed with a receiving claw 24 that engages with the claw 17 of the disk 15. The bearing 27 is fixed to the clutch 22 side and supported so as to be movable in two directions, an axial direction and a circumferential direction of the drive shaft 11.

The roller body 28 is supported by a bearing (not shown) that is movable in the axial direction of the drive shaft 11, and is positioned so as to receive the disk 15 and the majority of the clutch 22 therein. 7 provided on the clutch 22 at the rear end of the a-ra body 28.
Seven flanges 26 corresponding to the two flanges 26.30#i are provided, and a plurality of flanges 26.30#i are arranged around the flanges 26.30#i, and a plurality of flanges 31 are arranged around the flanges 26.30#i. The clutch 22 and the roller body 28 are movably connected to each other, and the clutch 22 and the roller body 28 are configured to repel each other. The bottle 31Fi is screwed onto the 7 flange 30, and is held movably in the axial direction with the flange 26, and has a stepped head 31m that is regulated by a stepped portion 26bK formed in the 7 flange hole 26m, and is in a fixed state. Therefore, under normal conditions, the clutch 22 moves rightward in FIG.

Reference numeral 33 denotes a shifter plate for moving the clutch 22 in the axial direction (leftward direction) K, which is provided at a position corresponding to bb and the flange 30, and the drive of the p-ra main body 28 is switched by the shifter plate 33.

Function When such a roller is attached to a yarn waist roller device as shown in FIG. 3, under normal conditions, the roller body 28 is moved between the friction conduction plate 9 and the fill springs 20 and 32 as shown in FIG. Since the clutches 22 are connected to the disks 15 via the pawls 24 (see Fig. 3),
a]) It is accurately and stably driven at the same rotation speed as the drive shaft 11 without slipping, regardless of the magnitude of the load. In this case, when stopping the rotation of the a-ra main body 28, first operate the shifter plate 33 and move the 7-lunge 30 in the direction of the arrow.
When pressed, the 7 langes 3o move to a position where the conical coil spring 32 is compressed to its wire diameter and thickness, as shown by the two-dot chain line. At the same time, the claw 17 and the receiving claw 2 were engaged.
4 separates and releases their meshing, the rotational transmission by these pawls 17 and receiving pawls 24 disappears (Fig. 3 Q11)).

By further moving the shifter plate 33 to the left, the p fill spring 20 is compressed, and the shift latch 22, fill spring 32, pin 31% roller body 28, and spring receiver 21 are compressed.
etc. move to the left as one. and roller body 2
8 and the friction conduction plate 19, the drive shaft 1 is no longer connected.
The rotation transmission from 1 to 4 is eliminated, and the roller body 28 immediately stops rotating due to contact with the shifter plate 33.

In this way, if the yarn becomes wrapped around the roller body 28, it can be quickly and safely removed.

Next, when the roller body 282i is to be rotated, the operation is reversed to the previous one. That is, when the shifter plate 33 is moved to the right, the roller body 28 and the friction conduction plate 19 first come into contact with each other due to the fill spring 20, and the roller body 28 gradually increases its rotation, and the drive shaft 1
1 and the roller body 28 are rotated at almost the same rate. When the shifter plate 33 is further moved to the right, the coil spring 32 is expanded and the clutch 22 is moved to the right. At the same time, the pawl 17 and the receiving pawl 24 engage with each other (FIG. 3(a)).

The pawl 17 and the receiving pawl 24 mesh smoothly with each other once, but if there are cases where they do not mesh, repeating the process again can ensure almost 100% engagement.

<Effects of the Invention> As explained above, according to the present invention, the drive of the roller main body can be switched reliably, quickly, and extremely easily, and rotation can be reliably transmitted without slipping, and the yarn can be When used in a Westrow 2 device, there is no change in yarn tension, quality abnormalities, etc., and the yarn breaking process can be performed in the same manner as before, which is a remarkable effect.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part of a roller drive transmission section showing an embodiment of the present invention, and FIGS. FIG. 3 is a schematic front view of the yarn waist roller device. 11... Drive shaft, 15...
・Disk, 17...Claw, 19...
...Friction conduction plate, 20, 32...
・Fill spring, 22...Clutch, 24
......Curved catch claw, 28...Roller body, 31...Pin, 33...
・・Shifter plate Fig. I - Fig. Z

Claims (1)

[Claims] A drive device for a roller that processes fibers, etc. includes a conduction disk having a plurality of claws protruding radially from an annular hollow surface formed at one end and a friction conduction plate contacting the roller body at the other end. A clutch is fixed to the drive shaft and has a receiving part that corresponds to the pawl of the transmission disk, and is movable along the drive shaft. A roller drive device characterized in that the rollers are connected to each other so as to be movable in a direction.