Tensioning device for coil winder and controller for hysteresis braker

Abstract

Tension apparatus of winding machine and control device for hysteresis brake. A kind of tension apparatus of winding machine, which is capable of controlling the tension of wiring material to have a constant tension based on the winding condition even the rotation speed of winding machine body is changed abruptly, is provided in the present invention. In addition, a control apparatus capable of conducting highly precise and stable break control is provided. The invented tension apparatus (1) of winding machine is provided with the control apparatus (3) that is composed of CPU unit (4), I / O unit (5), and NC control apparatus (6). The CPU unit (4) is provided with the followings: a pulse conversion portion (40), which converts the tension command voltage (44) that forms the threshold added voltage of the hysteresis break (2) into a pulse shape; the demagnetization treatment portion (41) for eliminating the accumulated residual magnetism due to the hysteresis break (2); and the timer portion (42) for calculating the demagnetization time. The I / O unit (5) is provided with a polarity reversion portion (50) for reversing the added demagnetization voltage of the hysteresis break (2).

Description

technical field [0001] The present invention relates to a coiler tensioning device and a hysteresis brake control device for controlling tension of a wire supplied to a coiler. Background technique [0002] The tensioning device of the existing winding machine is disclosed in Japanese Patent Application Laid-Open No. 64-41207, for example. The structure in this tensioning device 1 is, as Figure 8 As shown, the wire 11 pulled out from the wire warehouse 10 is wound on the tension roller 13 of the hysteresis brake 2 through the guide device 12, and is wound on the tension roller 13 of the tension arm 14 front end by the winding machine main body 8. The motor 80 drives the bobbin 81. On the basis of the above structure, a tension control device 9 for the purpose of fixing the tension of the wire 11 is also disclosed. The tension control device 9 includes a control device for a driving motor 80 of the bobbin 81 , outputs a motor control signal 82 to the motor 80 , and supplie...

AI Technical Summary

Problems solved by technology

Therefore, even if the application of the driving voltage to the hysteresis brake is reduced, the braking force cannot be reduced to the target value due to the residual magnetic force accumulated due to repeated braking operations, and the above-mentioned control device cannot perform accurate braking force control.

[0005] In addition, in JP-A-2002-101698, once the polarity reversal operation is performed instantaneously, overshoot occurs in the direction opposite to the braking direction of the hysteresis brake, so the residual magnetic force cannot be completely eliminated.

Images