JPH06345478A - Device for taking up wire - Google Patents

Abstract

PURPOSE:To provide the wire-taking device capable of perfectly preventing the slippage of a wire and not causing scratch marks, etc., on the surface of the wire. CONSTITUTION:A device for taking up a wire is characterized in that a pressing belt mechanism 4 composed of an endless press belt 2 produced from an elastomer such as a rubber and of two guide rollers 3 supporting the press belt 2 and in that one of the two guide rollers 3 is connected to a torque motor of auxiliary driving source through a coupling. The wire 6 is taken up with the device in the arrow direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a wire rod such as an optical fiber, and more particularly to a wire rod take-up unit in which a pressing belt mechanism is pressed against a drive pulley.

[0002]

2. Description of the Related Art Generally, in pulling a wire rod, the wire rod is pulled by a drive pulley (which is a pulley that is driven by being connected to a drive source such as a motor). The drive pulley alone pulls the wire rod. When taken, there was a drawback that the wire rod slips. Therefore, in the conventional wire rod take-up device, in order to eliminate the slippage at the time of taking up the wire rod, which was a problem in the past, the drive pulley connected to the main drive source,
A presser belt mechanism composed of an endless presser belt made of an elastic body (for example, rubber) and a plurality of guide rollers supporting the presser belt is brought into pressure contact with the presser belt, and the presser belt is a wire rod from the drive pulley and a presser belt from the wire rod. It was designed to rotate with the frictional tension transmitted in order.

[0003]

However, in the above-mentioned structure, although it is effective in preventing slippage, it is incomplete. Therefore, stress is applied to the wire due to the inertia (friction) (mechanical loss) of the holding belt, There is a problem that external damage such as abrasions occurs. Also, in order to prevent slippage completely, the pressure contact force between the drive pulley and the presser belt mechanism may be increased, but if the wire rod to be pulled is weak against external force such as optical fiber, it cannot withstand the force and scratches. ,
Further, since the wire breakage occurs, the pressure contact force cannot be so strong.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned problems and to provide a wire rod take-up device capable of completely preventing slippage and preventing the wire rod from being scratched or the like.

[0005]

In order to achieve the above object, the present invention provides a drive pulley in which a presser belt mechanism composed of an endless presser belt and a plurality of guide rollers for supporting the presser belt is pressed. In the wire drawing device, at least one of the plurality of guide rollers is connected to an auxiliary drive source.

[0006]

According to the present invention, since at least one of the plurality of guide rollers is connected to the auxiliary drive source, the guide roller driven by the pressing belt rotates by itself, and the stress applied to the wire by the inertia of the pressing belt or mechanical loss is applied. Greatly reduced.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1, in the wire rod take-up device of the present invention, an endless presser belt 2 made of an elastic material such as rubber is attached to a drive pulley 1 connected to an inverter motor which is a drive source (not shown). A holding belt mechanism 4 composed of two supporting guide rollers 3 is in pressure contact, and one of the two guide rollers 3 is connected via a coupling 12 to a torque motor 5 which is an auxiliary drive source. (See Figure 2).

The wire rod 6 is pulled in the direction of the arrow by the above-mentioned wire rod pulling device. At this time, the guide roller 3
The torque (setting voltage) in the traveling direction of the wire rod 6 is applied by the torque motor 5 to rotate the guide roller 3 itself to assist the take-up by the drive pulley 1, so that the wire rod 6 does not slip. Moreover, the wire rod 6 can be taken up without being applied with stress due to mechanical loss or the like.

Next, an example of use of the present invention will be described. FIG. 3 is an overall view showing an example in which the wire rod drawing apparatus of the present invention is used for screening an optical fiber. The screening device is roughly composed of a sending section 7, a main body section 8 and a winding section 9, which are roughly divided into the running order of the optical fiber 6a. The optical fiber 6a is first sent out from the sending part 7, passes through several guide pulleys 10, and is taken up by the drive pulley 1 as described above. After that, it is taken up again by the drive pulley 1 through the guide pulley 10 and taken up by the take-up section 9 through several guide pulleys 10. Further, the drive pulley 1 in the latter stage is also the drive pulley 1 in the front stage.
It has the same configuration as.

By increasing or decreasing the current of the inverter motor, the set torque of the torque motor 5 is corrected to an appropriate value that can be taken in with the optical fiber 6a stretched during screening.

[0011]

In the wire rod removing device of the present invention, since at least one of the plurality of guide rollers is connected to the auxiliary drive source, the guide roller itself rotates and the presser belt is driven. The wire rod can be favorably pulled by the pressing belt that is driven, and slipping can be surely prevented without increasing the pressure contact force between the drive pulley and the pressing belt mechanism.
Therefore, the stress applied to the wire rod due to the inertia and mechanical loss of the guide roller is significantly reduced, and the wire rod is not scratched or damaged.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is an overall view showing an example in which the wire rod winding device of the present invention is used for screening.

[Explanation of symbols]

 1 Drive Pulley 2 Presser Belt 3 Guide Roller 4 Presser Belt Mechanism 5 Torque Motor 6 Wire Rod 6a Optical Fiber 7 Delivery Part 8 Main Body 9 Winding Part 10 Guide Pulley 12 Coupling

Claims (1)

[Claims] 1. A wire rod drawing device in which a pressing belt mechanism, which is composed of an endless pressing belt and a plurality of guide rollers supporting the pressing belt, is pressed against a drive pulley, and at least one of the plurality of guide rollers is provided. A wire drawing device, characterized in that one is connected to an auxiliary drive source.