JPH0712884B2 - Device for running and winding long objects - Google Patents

Description

TECHNICAL FIELD The present invention relates to a traveling and winding device for a longitudinal object (wire, strip, etc.) in a wire drawing machine, a rewinding machine, and the like.

[Prior Art] In a wire drawing machine, after pulling a wire by a capstan, the wire is wound around a winding frame. Conventionally, a cone pulley is arranged between the capstan and the winding frame in order to prevent the winding speed from increasing as the winding diameter of the wire with respect to the winding frame increases. The tension of the wire is compensated by changing the positional relationship between the wire and the cone pulley according to the progress of winding.

[Problems to be Solved by the Invention] However, the use of a cone pulley not only complicates the mechanical structure, but also makes it difficult to wind at high speed and with high accuracy.

It is possible to detect the tension of the wire and control the speed of the winding side motor to keep this tension constant. However, even if such control is simply performed, the desired tension can be stably obtained. Is difficult, and excessive tension can break the wire.

Therefore, an object of the present invention is to provide a traveling and winding device for a long object capable of stable traveling and winding.

[Means for Solving the Problems] The present invention for achieving the above object is a supply-side rotating body for supplying a longitudinal object such as a wire or a strip, and a winding side for winding the longitudinal object. Rotating body, supply side motor for rotating the supply side rotating body, winding side motor for rotating the winding side rotating body, control drive circuit of the supply side motor, supply side rotation A tension state detector for the longitudinal object for detecting tension based on the tension of the longitudinal object between the body and the winding side rotating body or the winding state of the longitudinal object by the winding side rotating body, Supply side rotation state detecting means for directly or indirectly detecting a rotation state of the supply side rotating body, a reference signal source for generating a reference signal indicating a reference tension state of the longitudinal object, and a tension state of the longitudinal object. Longitudinal tension of the object obtained from the detector A winding-side control signal, which is the sum of a first component for correcting the difference between the state detection signal and the reference signal, and a second component corresponding to the output of the supply-side rotation state detecting means. A traveling and winding device for a longitudinal object, comprising: a winding-side control signal forming circuit to be formed; and a drive circuit for driving the winding-side motor so as to correspond to an output of the winding-side control signal forming circuit. It is related.

[Operation] In the present invention, the tension state detector of the longitudinal object generates the tension state detection signal Vt of the longitudinal object based on the detection of the tension or the winding diameter. The supply side rotation state detection means includes a supply side rotation state detection signal KV0 including rotation speed information of the supply side rotating body.
To occur. The winding side control signal forming circuit includes a first component A (Vt-Vr) corresponding to a difference (Vt-Vr) between the tension state detection signal Vt of the longitudinal object and the reference signal Vr and a supply side rotation state detection signal.
A winding side control signal A (Vt-Vr) + KV0 composed of the sum of KV0 and KV0 is formed and given to the drive circuit. As a result, the winding-side motor is not controlled only by the tension state detection signal of the longitudinal object, but is controlled in consideration of the rotation state of the supply-side motor, and the winding with high accuracy and in which the longitudinal object is difficult to cut is achieved. It will be possible.

[First Embodiment] Next, a winding device portion of a wire drawing machine for producing a wire according to a first embodiment of the present invention will be described with reference to FIG.

In FIG. 1, reference numeral 1 denotes a capstan as a supply side rotating body, and a wire 2 as a longitudinal object is wound in an α shape. A supply side motor 3 is connected to the capstan 1. 4 is a winding frame as a winding side rotating body,
The winding-side motor 5 is connected here. The supply side motor 3 composed of a DC motor is connected to the drive circuit 6, and the drive circuit 6 is connected to the control circuit 7. The winding-side motor 5 composed of a DC motor is connected to the drive circuit 8. 9
Is a tension detector as a longitudinal object state detector, which outputs a tension detection signal Vt composed of a voltage corresponding to the tension of the wire 2 between the capstan 1 and the winding frame 4. A reference signal source 10 outputs a reference signal Vr composed of a voltage corresponding to the target tension of the wire 2. The differential amplifier 11 has a reference signal Vr.
And tension control signal A (Vt
-Vr) is output.

The control circuit 7 gives a control signal corresponding to the target rotation speed of the motor 3 to the drive circuit 6. It is desirable that the target rotation speed be changed so as to gradually decrease at the time of starting, as shown by the waveform 12. The drive circuit 6 supplies the motor 3 with a voltage corresponding to the speed control signal.

The speed detection line 13 as the supply side rotation state detecting means,
The control signal generated from the control circuit 7 is used as the speed detection signal V0.
Get as. In order to properly balance the tension control component A (Vt-Vr), the speed detection signal V0 is multiplied by the coefficient K by the coefficient multiplier 14, and the supply side rotation state detection signal KV0.
Is obtained. The adder 15 adds the output of the differential amplifier 11 and the output of the coefficient multiplier 14 to add the winding side control signal A (Vt-Vr) +
You get KV0. The take-up side control signal is given to the drive circuit 8, and the take-up side motor 5 and the winding frame 4 are brought into a rotating state corresponding to the take-up side control signal.

As described above, in the method of this embodiment, not only the winding side motor 5 is controlled so as to keep the tension of the wire 2 constant based on the output of the tension detector 9, but also the rotation of the supply side motor 3 and the capstan 1 is performed. Since the winding side motor 5 is controlled so as to follow the state, the followability and synchronism of the winding by the winding frame 4 with respect to the capstan 1 are improved, the tension fluctuation of the wire 2 becomes extremely small, and the winding of the wire 2 is performed. The wire is satisfactorily removed and the wire 2 is prevented from being cut due to abnormal tension.

[Second Embodiment] Next, the winding portion of the wire drawing machine according to the second embodiment shown in FIG. 2 will be described. However, in FIG. 2, the same parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.
In this embodiment, a supply side motor 3a made of an AC motor is connected to the capstan, and a winding side motor 5a made of an AC motor is connected to the winding frame 4. Each motor 3a, 5a
Variable frequency inverters 6a and 8a are connected to the drive circuits, respectively. The supply side control circuit 7a generates a control signal for controlling the drive frequency of the inverter 6a. The speed detector 13a is provided as a rotation state detecting means of the supply side motor 3a and generates a speed detection signal Vo composed of a voltage corresponding to the rotation speed of the supply side motor 3a. This speed detection signal is equivalent to the signal on line 13 in FIG.

The output of the adder 15 is converted into a frequency signal by the voltage-frequency (V / f) conversion circuit 8b and becomes the frequency control signal of the inverter 8a.

Each motor 3a, 5a rotates at a rotation speed corresponding to the output frequency of each inverter 6a, 8a.

Also in this embodiment, since the winding side motor 5a is controlled in consideration of the rotation state of the supply side motor 3a, the followability and synchronism are improved, and the winding of the wire 2 can be smoothly and rapidly advanced. .

[Modification] The present invention is not limited to the above-described embodiments, and the following modifications are possible, for example.

(1) Instead of detecting the speed of the supply-side motor 3a in FIG. 2, the frequency signal of the control circuit 7a may be converted into a voltage signal by the frequency-voltage converter 13b shown by the dotted line and used as a speed detection signal. .

(2) Instead of the tension detector 9, a winding diameter detector 9a for detecting the winding diameter of the wire 2 in the winding frame 4 as shown by the dotted line in FIG.
May be provided, and a control signal for correcting the change in tension due to the change in winding diameter may be formed and input to the adder 15.

(3) The inverters 6a and 8a may be configured to change the voltage with the frequency.

(4) The present invention can be applied to a wire or tape rewinding machine, a traveling device, and the like. In the case of a rewinder, the capstan 1 is used as the supply side reel.

[Advantages of the Invention] As described above, according to the present invention, the winding can be favorably performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a winding device portion of a wire drawing machine according to a first embodiment of the present invention, and FIG. 2 is a block showing a winding device portion of a wire drawing machine according to a second embodiment of the present invention. It is a figure. 1 ... Capstan, 2 ... Wire, 3 ... Supply side motor, 4
... winding frame, 5 ... winding side motor, 6 ... supply side drive circuit, 7 ...
Control circuit, 8 ... Winding side drive circuit, 9 ... Tension detector, 10 ...
Reference signal source, 11 ... Differential amplifier, 15 ... Adder.

Claims (1)

[Claims] 1. A supply side rotating body for supplying a longitudinal object such as a wire or a strip, a winding side rotating body for winding the longitudinal object, and a supply for rotating the supply side rotating body. Side motor, a winding side motor for rotating the winding side rotating body, a control drive circuit of the supply side motor, the longitudinal object between the supply side rotating body and the winding side rotating body Tension detector of the longitudinal object for detecting the tension based on the tension or the winding state of the longitudinal object by the winding side rotating body, and directly or indirectly detects the rotation state of the supply side rotating body. Supply side rotation state detection means for, a reference signal source for generating a reference signal indicating the reference tension state of the longitudinal object, a tension state detection signal of the longitudinal object obtained from the tension state detector of the longitudinal object and the To correct the difference from the reference signal A winding side control signal forming circuit for forming a winding side control signal composed of the sum of the component No. 1 and a second component corresponding to the output of the supply side rotation state detecting means, and the winding side control. And a drive circuit for driving the winding-side motor so as to correspond to the output of the signal forming circuit.