JPS6048426B2 - stagger wind device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for forming a desired uneven shape on the end surface of the coil when winding the treated strip into a coil in a strip processing line such as continuous electroplating equipment for steel strip. This invention relates to an improvement in a stagger winding device that can wind a strip in such a way as to
To easily form an uneven shape on an end face of a coil into an arbitrary shape with high accuracy.

Generally, when winding a processed strip into a coil in a strip processing line, a device for optically or photoelectrically detecting the edge of the strip is placed along the strip running path. The movement of the coil formed on the winder is controlled in the width direction of the strip in accordance with the output signal of this detection device so that the end face of the coil formed on the winder is included in a plane perpendicular to the axis of the winder. This prevents unevenness from occurring on the end face of the coil.

However, for example, in the case of an electrogalvanized steel sheet or an electrolytic tin-plated steel sheet, a thicker plating layer is formed on both sides of the plating strip than in the center due to the tip effect, so this is not the case with the normal winding method described above. When the coil is wound into a coil using a winding device, both ends of the coil become larger in diameter than the center, creating a drum-like shape. If the coil is too large, cracks may occur in the plating layer near the ends of the coil, which may significantly reduce the product value. It was hot. Therefore, in order to prevent this, a strip winding device, that is, a stagger wind device, is used which moves the winding position of the end of the strip from side to side and winds it in a zigzag manner. Conventionally, the above-mentioned stagger winding device extracts an electrical signal corresponding to the rotational speed of the winding machine, uses this signal to create an electrical periodic signal corresponding to the desired uneven shape of the end face of the coil, and There is a device that moves the winder left and right according to signals.

This device will be explained with reference to FIG. The strip 1 is wound into a coil on a winder 2 driven by an electric motor 3. A frame 7 supporting the electric motor 3 and the winding machine 2 is supported on a foundation so as to be able to reciprocate linearly in a direction perpendicular to the direction in which the strip 1 travels, and is connected to the electric motor and a screw shaft or a hydraulic cylinder. It is caused to reciprocate in the direction of the arrow in the figure by an operating device 6 consisting of, etc. strip 1
Two reference positions of the strip edge are set along the bus line, and the deviation of the edge from the reference position is detected while the slip 1 is traveling. For example, a detector 8, which is a combination of a light source and a phototransistor, is arranged at the edge of the strip 1, and the output of this detector 8 is amplified by an amplifier 9 and given to the four operating devices 6 as an operation command signal. . A winding machine rotation detector 5 is connected to the electric motor 3 via a speed reduction device 4 having an appropriate reduction ratio, and the detected winding machine rotation signal is given to a stacker shape signal generator 10. Using this signal, the stacker shape signal generator 10 sends to the detector 8 a periodic electric signal corresponding to the desired uneven shape of the coil end face, that is, a stacker shape signal. In this device, a stacker-shaped signal generator 10
If the edge of the strip 1 deviates from the set position, the deviation is detected by the detector 8, amplified by the amplifier 9, and sent to the operating device 6. The operating device 6 responds to this by moving the winding machine 2 to remove the strip 1.
Eliminates the deviation of the edges.

Thereby, the end face of the coil wound on the winder 2 is included in one plane substantially orthogonal to the rotational axis of the winder. However, in the above device, the stacker shape signal is transmitted from the stacker shape signal generator 10 to the detector 8.
This signal is amplified by the amplifier 9 and supplied to the operating device 6, so that the operating device 6 causes the pedestal 7 to reciprocate, and as a result, the signal is wound by the winding machine 2. The end face of the coil forms an uneven surface corresponding to the signal waveform of the stacker shape. In the stagger wind device described above, it is important how to generate a stacker shape signal corresponding to the desired uneven shape. Since the desired uneven shape of the coil end surface varies depending on the dimensions of the strip 1 and the amount of plating applied, the stacker-shaped signal generator 1
0 can form any uneven shape on the end face of the coil with high precision.
It is desirable to be able to easily set and change the uneven shape in a short time. However, conventionally, as shown in FIG. 2, the stacker-shaped signal generator uses a synchro oscillator 11 to extract a sine wave signal corresponding to the rotational speed of the winding machine, and a synchro transformer 12 and a transmitter circuit. 13 to obtain a pseudo-trapezoidal signal, as shown in Figure 3,
There are devices that use a signal generating device 14 such as a magnetic tape or magnetic tape that extracts the winding machine rotational speed using a synchronized transmitter 11 and presets a signal corresponding to the desired uneven shape of the end face of the coil. In the former case, although the device is simple, in order to change the desired uneven shape of the coil end face, it is necessary to change the reduction ratio, which takes time. However, it has drawbacks such as expensive equipment.

In addition, in FIGS. 2 and 3, the same numbers as in FIG. 1 indicate the same items. The present invention has been made to solve the above problem, and involves inputting a pulse signal corresponding to the rotational speed of a strip winding machine to a counter gate control circuit, and controlling the pulse signal by the counter gate control circuit. A reversible counter whose pulse count value can be arbitrarily set is used, and this output signal is used as a stacker shape signal. By this, the desired uneven shape of the coil end face can be set accurately, easily, and in a short time. It is characterized by the fact that it can be done. The present invention will be described by way of examples with reference to the drawings. FIG. 4 is a configuration diagram of an embodiment of this invention, and the second
The same numbers as those in the figures and FIG. 3 indicate the same items.

A pulse signal generated in proportion to the rotational speed of the winder 2 by a pulse transmitter 15 connected to the winder rotating shaft is sent to a counter gate control circuit 17 through a frequency divider 16. When starting the stagger wind control, the counter gate control circuit 17 sets the value of the reversible counter 18 to the initial value given by the digital switch 24, and the value of the auxiliary counter 22 to zero. First, a pulse signal is input to the reversible counter 18 through the counter gate control circuit 17, and the value of the reversible counter 18 is sequentially counted up and increased. When the value of the reversible counter 18 reaches the pulse count value set by the digital switch 25, the reversible counter matching circuit 21 sends an upper limit matching signal to the counter gate control circuit 17, and the pulse input to the reversible counter 18 is cut off. Along with the auxiliary counter. A pulse signal is inputted to the auxiliary counter 22 on evening 22.
The value of increases sequentially. When the value of the auxiliary counter 22 reaches the pulse count value set by the digital switch 27, the auxiliary counter matching circuit 23 sends an auxiliary counter upper limit match signal to the counter control circuit 17, and pulse input to the auxiliary counter 22. is cut, and the value of the auxiliary counter 22 becomes zero. Also, at this timing, a pulse signal is input to the reversible counter 18,
This time, the value of the reversible counter 18 is counted down and sequentially decreases. When the value of the reversible counter 18 reaches the pulse count value set by the digital switch 26, the reversible counter matching circuit 21 sends a lower limit matching signal to the counter gate control circuit 17, and the pulse input to the reversible counter 18 is cut off. At the same time, a pulse signal is input to the auxiliary counter 22, and the value of the auxiliary counter 22 increases sequentially again. When the value of the auxiliary counter 22 reaches the pulse count value set by the digital switch 27, the auxiliary counter matching circuit 23 sends an auxiliary counter upper limit matching signal to the counter gate control circuit 17, which cuts the pulse input to the auxiliary counter 22. , auxiliary counter 22
As soon as the value of is set to zero, a pulse signal is input to the reversible counter 18, and the value of the reversible counter 18 is counted up again and sequentially increases. Thereafter, by repeating this process, the value of the reversible counter 18 changes to the value of the digital switch 25, 2.
According to the pulse count value set in 6 and 27. It will increase and decrease periodically according to the pattern. An example of a time chart is shown in FIG. The value of the reversible counter 18 is converted into an analog signal by a D/A converter 19, amplified by an amplifier 20, and supplied to the detector 8. In this manner, by appropriately setting the pulse count values using the digital switches 25, 26, and 27, an electrical signal corresponding to the desired uneven shape of the coil end face can be obtained. In the above embodiment, a pulse transmitter is used as the winding machine rotation detector, but the present invention is not limited to this as long as it can extract a pulse signal according to the rotational speed of the winding machine. In addition, although a digital switch was used to set the pulse count value, it may also be set from a calculator placed on the line.In this way, the optimum coil end face can be set according to the strip size and the amount of plating. It is also possible to automatically set the uneven shape. As explained above, according to the present invention, by setting the pulse count value as a digital quantity using a digital switch or the like, an electric signal corresponding to the uneven shape of an arbitrary coil end face can be formed. It is possible to accurately correspond to the winding shape of the coil, and the desired uneven shape of the coil end face can be set easily, quickly and accurately.Furthermore, the structure is simple and can be realized at low cost, so it can be easily adapted to existing equipment. Various useful effects are brought about, such as ease of adaptation.

[Brief explanation of drawings]

1, 2, and 3 are block diagrams of a conventional stagger wind device, FIG. 4 is a block diagram of an embodiment of the present invention, and FIG. 5 is a diagram showing a time chart. . In the drawings, 1... strip, 2...
... Winder, 3 ... Electric motor, 4 ...
・Reduction device, 5... Winder rotation detector, 6 ・
...Operating device, 7... Frame, 8...
...detector, 9...amplifier, 10...
Stacker-shaped signal generator, 11... synchro oscillator, 12... synchro transformer, 13...
... limiter circuit, 14 ... signal generator,
15... Pulse oscillator, 16... Frequency divider, 17... Counter gate control circuit, 18...
...Reversible counter, 19...D/A converter, 20...Amplifier, 21, 23...
Matching circuit, 22... Auxiliary counter, 24, 25
, 26, 27... Digital switch.

Claims (1)

[Claims] 1 Using a pulse signal corresponding to the rotational speed of the strip winder, create a stagger shape signal corresponding to the desired uneven shape of the coil end face, and use this stagger shape signal as a reference to move the winder in the strip width direction. In a strip stagger winding device that winds a strip by controlling the movement of the winder, a pulse signal corresponding to the rotational speed of the winding machine, an upper limit and lower limit matching signal output from a matching circuit for a reversible counter, and a matching circuit for an auxiliary counter. A counter gate control circuit that controls input gates of a reversible counter and an auxiliary counter based on an upper limit matching signal output from a matching circuit, and a reversible counting circuit that performs reversible counting using a signal output from the counter gate control circuit. When the counter and the preset upper and lower limit pulse count values of the reversible counter match the upper or lower limit pulse count values output from the reversible counter, an upper limit match or lower limit match signal is sent to the counter gate control. A reversible counter matching circuit output to the circuit and an upper limit matching signal output from the reversible counter matching circuit are input to the counter gate control circuit, and at the same time, the reversible counter matching circuit outputs the reversible counter matching circuit to the counter gate control circuit. Then, when an auxiliary counter that starts counting, a preset upper limit pulse count value of the auxiliary counter, and an upper limit pulse count value output from the auxiliary counter match, an upper limit match signal is sent to the counter gate control circuit. and a matching circuit for an auxiliary counter that outputs an output from the reversible counter, and uses a pulse signal output from the reversible counter as the stagger shape signal.