JPS61140469A - Tension adjusting device for horizontal type wire accumulator - Google Patents

Abstract

PURPOSE:To prevent a wire from being cut by furnishing a guide rail with a group of movable sheaves as practicable to approach or go apart from the side of stationary sheave group, wherein the movable sheaves shall be capable of rotating as well as going up and down from the horizontal position with the axis of the stationary sheaves as its center, thereby eliminating risk of applying an excessive tension to the wire. CONSTITUTION:During the wire in accumulation, a group of movable sheaves 2 are pulled with a set tension same as in synchronous condition in which the incoming and outgoing speeds of the wire into/out of the accumulator, and the incoming speed is constant. However the outgoing speed decreases, and when the wire 12 is stopped, the tension applied thereto lowers below the external tension, and the movable sheave group 2 move in the direction of arrow 8 for accumulation of the wire. When out of wire, on the other hand, the incoming speed of wire into the accumulator is constant same as in synchronization and accumulation, but the outlet wire speed becomes higher than the inlet for the purpose of collection, which can be performed only under the condition wherein the tension is greater than the external tension to cause the wire 12 with increased tension, so that rotating and tilting a guide rail 3 will allow the movable sheave group 2 to move toward the stationary sheave group 1 by their own weight to lead to setoff of the increased tension, which will ensure prevention of elongation or cutting.

Description

DETAILED DESCRIPTION OF THE INVENTION [Background and Objects of the Invention] The present invention relates to an improvement in a horizontal accumulator tension adjustment device for, for example, silk filaments.

In the accumulator, a filament is wound multiple times between a fixed sheave group and a movable sheave group and stored therein. The moving sheave group is pulled by the external tension of a torque generator, such as a torque motor, an intertax motor, or a combination of clutches, and the magnitude of the pulling force is set according to the slack between the sheave groups. There is.

FIG. 2 is a front view of a conventional horizontal accumulator tension adjustment device for striatal bodies, and FIG. 3 is a side view of FIG. 2.

In the figure, reference numeral 1 denotes a fixed sheave group rotatably attached to one end of the guide rail 3, and a filament 12 is wound multiple times between it and the movable sheave group 2. The strip 12 is arranged to be cuffed to the incoming line 6 and the outgoing line. The movable sheave group 2 has its axis parallel to the fixed sheave group 1 and is in a horizontal position on the guide rail 3 via the moving roller 4 in the moving direction 10.11 of the arrow, that is, can approach and move away from the fixed sheave group 1. is attached to. Note that arrow 10 indicates the direction of movement during line storage, and arrow 11 indicates the movement direction during line removal. 5 is a stand that supports the guide rail 3, and 5 sits on the stand that supports the guide rail 3.

Further, the movable sheave group 2 is pulled by applying an external tension force 8 in the direction of the arrow by a torque motor, an induction motor, etc. as described above.

In the above structure, when the accumulator moves in the arrow moving direction 10 during storage, the tension becomes smaller than the set tension, and the filament 12 becomes further sagging. However, excluding IIa
The tension in the filament 14 when moving in the direction of arrow movement 11 becomes greater than the set tension, causing a phenomenon in which the wire becomes too tensioned, and especially in the case of a thin filament, this becomes a cause of wire breakage within the accumulator.

The present invention was made in view of the above-mentioned situation, and an object of the present invention is to provide a horizontal accumulator tension adjustment device for a striatum that can prevent wire breakage without applying excessive tension to the striatum. .

[Summary of the invention] The horizontal accumulator tension adjustment device for the striatum of the present invention has the following features:
Fixed sheath 1 group is rotatably supported on one end side of the guide rail, and a filament body is wound multiple times between the movable groups 2 and 1, and the filament body enters and exits the line. The axis line is parallel to the fixed sheave group and is arranged in a horizontal position, and the guide rail is provided with a moving roller, and the fixed sheave group is attached to the fixed sheave group so as to be able to approach or separate from it. The movable sheave group is attached by applying an external tension in a direction away from the sheave group side, and the guide rail is moved vertically from the horizontal position centering on the axial center attachment side of the fixed sheave group. It is rotatably mounted.

[Example J] Hereinafter, the horizontal accumulator tension adjustment device for a striatum according to the present invention will be explained using an example and FIG. The difference between this embodiment and the above-mentioned conventional structure is that in the conventional structure, the guide rail 3 is fixed in a horizontal position, whereas in this embodiment, the guide rail 3 is attached to the axis installation side of the fixed sheave group 1. It is attached to the center so that it can rotate up and down. In the figure, the side of the guide rail 3 where the movable sheave 2 is located is a rotatable free end and is rotatably formed, and the guide rail 3 and the movable sheave group 2 shown in solid lines are - The position where the guide rail 3 and the moving sheave group 2 are indicated by the two-dot chain line indicates the position when the line is removed. In other words, when the line is stored (ha,
The moving sheave group 2 is pulled with the same set tension as in the synchronized state where the linear velocity entering the accumulator and the linear velocity exiting the accumulator match, and the linear velocity entering the accumulator is constant.

However, when the output linear velocity is reduced or stopped, the tension applied to the linear body 12 decreases and becomes smaller than the external tension, and the moving sheave group 2 moves in the direction of the arrow 8 and is stored.

On the other hand, during line removal, the linear velocity entering the accumulator is constant as during synchronization and line storage, but the exit linear velocity is faster than the inlet linear velocity due to recovery. At this time, the striatum 1 cannot be recovered unless the tension is greater than the external tension.
2 will increase, so in order to cancel out the increased tension of the filament 12, the guide rail 3 is rotated and tilted. Therefore, the movable sheave group 2 moves toward the fixed sheave group 1 under its own weight, and the increase in tension is canceled out. Therefore, elongation or breakage of the thin filament 12 can be prevented. Note that the degree of inclination of the guide rail 3 is made to correspond to the degree of increase in tension.

In this way, in the horizontal accumulator tension adjustment device for wire bodies according to this embodiment, the guide rail is rotatably mounted around the axial center attachment side of the fixed sheave group, so there is no risk of the wire stretching or breaking. When a certain large abnormal tension is applied, by tilting the guide rail, it is possible to keep the tension of the wire in the accumulator constant below the permissible tension, thereby preventing wire breakage without losing the characteristics of the wire. It can be prevented.

[Effects of the Invention] As described above, the horizontal accumulator tension adjustment device for a filamentous body according to the present invention has the effect of preventing wire breakage without applying excessive tension to the filamentous body.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the horizontal accumulator tension adjustment device for striatal bodies of the present invention, FIG. 2 is a front view of a conventional horizontal accumulator tension adjustment device for striatal bodies, and FIG. FIG. 1... Fixed sheave group, 2... Moving sheave group. 3... Guide rail, 4... Moving roller. 6...Incoming line, 7...Outgoing line. 8...External tension, 12...Striatum. %1 eyes.

Claims (1)

[Claims] (1) A fixed sheave group that is rotatably supported at one end of the guide rail, and a wire body is wound multiple times between it and the moving sheave group, and the wire body enters and exits the wire. and the axis line is parallel to the fixed sheave group and is arranged in a substantially horizontal position, with a moving roller interposed in the guide rail, and is attached to the fixed sheave group side so as to be able to approach or separate from the fixed sheave group side, and the fixed sheave group side. The movable sheave group is attached by applying an external tension in a direction away from the fixed sheave group, and the guide rail rotates in the vertical direction from the horizontal position centering on the axial center attachment side of the fixed sheave group. A horizontal accumulator tension adjustment device for the striatum, characterized in that it is movably attached.