JPH028880B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a stop control device for a running cutting machine that synchronizes a line control device and a cutting machine control device to stop the cutting machine.

[Conventional technology]

A running cutting machine that cuts the strip is designed to stop when the strip line stops.

FIG. 4 is a diagram for explaining the movement of the cutting edge of the running cutting machine and the strip line. As shown in FIG. 4, the blade edge position of the running cutting machine is divided into four parts: an initial position, an acceleration section, a cutting section, and a deceleration section. Then, as the stripline SL moves, the strip is cut by moving →→→→. Here, the strip line
If the operation of the SL is stopped arbitrarily, it is not known at what point in the running cycle of the running cutting machine the stripline SL will stop. As a result, if you stop in an acceleration section or cutting section, for example,
Unable to move to initial position.

As mentioned above, if the strip line cutting machine is stopped at the same position as when the strip line stopped, if the strip line cutting machine is electrically synchronized with the line, the strip line will be at the initial position at the start of operation. Without a cutting machine, inconveniences arise. Therefore, the movement to the initial position is performed during the cutting period of the running cutting machine when the power is turned on.

[Problem that the invention seeks to solve]

However, even when it is necessary to stop the line in a running cutting machine due to lot changes, etc., if the line is stopped at an arbitrary position, the running cutting machine may not stop at the initial position. By reinitializing the running cutter when the power is turned on again, it becomes necessary to move it to the initial position when restarting operation, which impairs work efficiency.

The present invention is based on the above considerations, and includes:
It is an object of the present invention to provide a stop control device for a running cutting machine which always stops the running cutting machine at an initial position and improves work efficiency.

[Means for solving problems]

To this end, the stop control device for a running cutting machine of the present invention includes a running cutting machine installed along a stripline to cut the strip, an output terminal for a speed signal, and an input terminal for a line stop signal. Line control means that controls the movement of the stripline to send out a speed signal of the stripline from the output terminal, and when a line stop signal is input from the input terminal, decelerates and stops the movement of the stripline with predetermined deceleration characteristics. , has an output terminal for a deceleration zone signal and an input terminal for a cutting machine stop signal, controls the movement of the running cutting machine, and when the running cutting machine enters a deceleration zone, sends out a deceleration zone signal from the output terminal. a cutting machine control means that stops the running cutter when a cutting machine stop signal is input from an input terminal; a speed signal input terminal connected to an output terminal of the line control means; and a speed signal input terminal connected to an input terminal of the line control means; an output terminal for a line stop signal, an input terminal for a deceleration section signal connected to an output terminal of the cutting machine control means, and an output terminal for a cutting machine stop signal connected to an input terminal of the cutting machine control means. stop control means, and the stop control means sends out a line stop signal in response to a stop command to cause the line control means to decelerate the movement of the stripline, and then, according to the speed signal and deceleration section signal of the input terminal, The strip line is configured to transmit a line stop signal and a cutting machine stop signal when it is detected that the speed of the strip line has decelerated to a predetermined value and the inter-travel cutting machine has entered a deceleration zone. The present invention is characterized in that the rip line and the running cutting machine are stopped.

[Effect]

In the stop control device for a running cutting machine of the present invention, a line stop signal is sent from the stop control means in response to a stop command, the line is decelerated according to a predetermined deceleration characteristic, and the line speed reaches a predetermined value and the cutting machine decelerates. When entering the section, the stripline will stop and the cutting machine will also stop at its initial position.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a diagram for explaining one embodiment of a stop control device for a running cutting machine according to the present invention, and FIG. 2 is a diagram showing the configuration of a specific embodiment of a synchronous stop control device.
FIG. 3 is a time chart for explaining the operation of the apparatus shown in FIG. 2. In the figure, 1 is a line control device, 2 is a cutting machine control device, 3 is a synchronous control device,
4 is an operation console, 5 and 6 are comparators, 7 and 8 are one-shot multivibrators, 9 and 10 are FF (flip-flop) circuits, 11 is a NAND circuit, 12 and 1
3 indicates an AND circuit.

In FIG. 1, a line control device 1 controls the movement of the stripline, and sends a line speed signal a to a synchronous stop control device 3, and a line stop signal b from the synchronous stop control device 3. In response to this, the stripline is decelerated and stopped according to a predetermined deceleration characteristic.

The cutting machine control device 2 controls the movement of the running cutting machine, and sends a cutting machine cycle deceleration section signal c to the synchronous stop control device 3, and a cutting machine stop signal d from the synchronous stop control device 3. When this occurs, the running cutting machine is controlled so as not to enter the next cutting cycle starting from the initial position. Here, the cutting machine cycle deceleration section signal is a signal generated when the cutting edge of the running cutter enters the deceleration section shown in FIG. 4 described above.

The synchronous stop control device 3 is provided to realize a stop control device for a running cutting machine according to the present invention, and transmits and receives the above-mentioned signals between the line control device 1 and the cutting machine control device 2. In addition, a stop command signal e is inputted from the console 4, and further,
A holding speed f at which the stripline is temporarily held at a low speed when decelerating and stopping is inputted.
This holding speed f is the amount of movement from this speed until the stripline stops, τ, the minimum cutting length of the running cutting machine, l _nio , and the minimum possible cutting length when the running cutting machine starts moving from the initial position. Letting S _nio be set so that τ + S _nio ≦l _nio .

When the synchronous stop control device 3 receives the stop command signal e, it sends a line stop signal b to the line control device 1 until the line speed signal a reaches the holding speed f. After that, when the stop command signal e is input again while the strip line has reached the holding speed, the condition is that the cutting edge of the running cutter enters the deceleration zone (cutting machine cycle deceleration zone signal c turns on). Then, the line stop signal b is sent out again to stop the stripline, and the cutting machine stop signal d is sent out to control the running cutting machine so that it does not start the next cutting cycle starting from the initial position. FIG. 2 shows a specific example of the configuration of the synchronous stop control device 3 that processes such signals, and FIG. 3 shows its operation time chart.

In FIG. 3, line speed signal a from line control device 1 is supplied to one input terminal of comparators 5 and 6, and holding speed f from console 4 is supplied to the other input terminal of comparator 6. Supplied. Therefore,
Comparator 5 detects that the line speed signal a has become 0 (stopping of the stripline), and comparator 6
detects that the line speed signal a has decreased to the holding speed f. Further, the stop command signal e from the console 4 is supplied to the clock terminal CK of the D-type FF circuit 9, and the cutting machine cycle deceleration section signal c is supplied to the input terminal of the one-shot multivibrator 8.

Next, the operation when the stop command signal e from the console 4 is set to logic "1" to stop the strip line and the running cutting machine during normal operation will be explained with reference to the time chart in FIG. .

(a) First, when the stop command signal e becomes logic "1" for the first time, the Q terminal output signal g of the FF circuit 9 becomes logic "1", and the FF circuit 10 is in a clear state (the terminal output i is Therefore, the logic condition in the AND circuit 12 is satisfied, and the line stop signal b sent to the line control device 1 becomes logic "1". As a result, in the line control device 1, the stripline is controlled to decelerate, and the line speed signal a decreases.

(b) When the line speed signal a decreases to the level of the holding speed f, the output of the comparator 6 becomes logic "1" and the one-shot multivibrator 7 operates. As a result, the FF circuit 9 is cleared by the output from the terminal of the one-shot multivibrator 7, and the line stop signal b is returned to logic "0", so that the deceleration control of the strip line is interrupted at the holding speed. At the same time, the FF circuit 10 is set by the output h of the Q terminal of the one-shot multivibrator 7.

(c) When the stop command signal e becomes logic "1" for the second time when the stripline holding speed is maintained and the FF circuit 10 is set, the FF
The Q terminal output signal g of the circuit 9 becomes logic "1". After that, when the running cutting machine enters the deceleration section and the cutting machine cycle deceleration section signal c becomes logic "1" and the one-shot multivibrator 8 operates, the output of the NAND circuit 11 causes the FF
Since the circuit 10 is cleared, the logic condition in the AND circuit 12 is established, and the line stop signal b sent to the line control device 1 becomes logic "1".
become. As a result, in the line control device 1, the stripline is again controlled to decelerate.

(d) When the stripline stops, the output of the comparator 5 becomes logic "1", the logic condition in the AND circuit 12 is established, and the cutting machine stop signal d sent to the cutting machine control device 2 becomes logic "1". "1"
become. As a result, the cutting machine control device 2 is prohibited from starting the next cutting cycle starting from the initial position, and the cutting machine is stopped at the initial position.

Note that the present invention can be modified in various ways and is not limited to the above embodiments. For example, after the line speed reaches the holding speed by only one stop command signal, the line stop signal b may be sent again on condition that the cutting machine enters the deceleration zone. Further, the configuration of the synchronous stop control device shown in FIG. 2 may be realized by using a microcomputer or a relay circuit.

[Effects of the Invention] As is clear from the above explanation, according to the present invention, the running cutting machine automatically stops at the initial position upon receiving a stop command, so the operation is easy and the line can be easily changed due to lot changes, etc. Even if the machine is stopped, there is no need to move it to the initial position when restarting operation, greatly improving work efficiency.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining one embodiment of a stop control device for a running cutting machine according to the present invention, and FIG. 2 is a diagram showing the configuration of a specific embodiment of a synchronous stop control device.
FIG. 3 is a time chart for explaining the operation of the apparatus shown in FIG. 2, and FIG. 4 is a diagram for explaining the movement of the cutting edge of the running cutting machine and the strip line. 1... Line control device, 2... Cutting machine control device, 3
...Synchronous control device, 4...Operation console, 5 and 6...Comparator,
7 and 8...one-shot multivibrator, 9 and 10...FF (flip-flop) circuit, 11...NAND circuit, 12 and 13...AND circuit.

Claims (1)

[Claims] 1. A running cutting machine installed along the stripline to cut the strip, and having an output terminal for a speed signal and an input terminal for a line stop signal, and controlling the movement of the stripline to generate a speed signal for the stripline. a line control means that decelerates and stops the movement of the stripline with a predetermined deceleration characteristic when a line stop signal is inputted from the input terminal, and an output terminal for a deceleration section signal and an input for a cutting machine stop signal. A terminal is provided to control the movement of the running cutting machine, and when the running cutting machine enters a deceleration section, a deceleration section signal is sent from the output terminal, and when a cutting machine stop signal is input from the input terminal, the running cutting machine starts operating. a speed signal input terminal connected to the output terminal of the line control means, a line stop signal output terminal connected to the input terminal of the line control means, and a cutting machine control means for stopping the cutting machine control means; stop control means having an input terminal for a deceleration section signal connected to an output terminal and an output terminal for a cutting machine stop signal connected to an input terminal of the cutting machine control means; A line stop signal is sent in response to a command to cause the line control means to decelerate the movement of the stripline, and then the speed of the stripline is decelerated to a predetermined value by the speed signal and deceleration section signal of the input terminal, and the speed of the stripline is reduced to a predetermined value and the speed of the stripline is The strip line and the running cutting machine are stopped by transmitting a line stop signal and a cutting machine stop signal when it is detected that the running cutting machine enters a deceleration zone. A stop control device for a running cutting machine, characterized by: