SU481345A1 - Device for precise stopping of the drum winder - Google Patents

Description

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The invention relates to rolling mill equipment and can be applied to non-strip hot rolling mills unHTOMMOfo for stopping a reel drum in a diving station.

Known is ycTpQjfpT.Bo for determining the diameter of the coil hanger and its stopping, containing a strip sensor, a rotation angle sensor of the forming roller, a drum rotation angle sensor, a computing unit, a drum speed monitoring unit and a circuit I.

The purpose of the invention is to improve the reliability of the device in operation and simplify its maintenance.

This is achieved by the fact that the device is equipped with a pulse generator and counter controlled by a drum speed controller installed in the node controlling the speed of the drum. At the same time, one of the generator inputs and the meter reset bus are connected to the output of the computing unit, the generator output is connected to the counter input, and the counter output is connected to the second input of the generator control and input / iy c-circuit 11.

The drawing shows a functional diagram of the proposed device.

The device contains a sensor 1 at the rear end of the strip, is installed in front of the winding roller and fixing the strip. At point A, C the forming roller 2 of the winder is mechanically connected to the sensor 3 of the angle of rotation of the roller, and with the drum 4 of the winder there is a sensor 5 of the angle of rotation. The outputs of the sensors 1, 3 and 5 are connected to the inputs of the computing unit 6.

; The output of the computing unit is connected; with one of the inputs of the controlled pulse generator 7, the reset voltage of the counter 8 and with one of the inputs of the H 9 circuit. i The output of the counter 8 is connected to the second input of the controlled pulse generator i7 and to the input of the AND 9 circuit. The output of the AND 9 circuit is the output devices. Up; The equalizing pulse generator 7 and the counter 8 form a knot for controlling the speed of the drum of the winder 1O.

At the output of the count 8, the signal is but the owner if the alpigamo counter has the number HMiiyjibcoB fj. defined by the expression: C - i where f is the pulse generator signal 7 Hz f2 ... set creep speed of the winder drum in rev / sec, when this is achieved, turn off the drive drive and turn on the brakes. The device works as follows. Until the rear of the coil of the coiled strip hits point A, the circuit is in the initial state. At the same time, the sigpal at the output of the sensor 1 is absent, the computing unit 6 and the counter 8 are reset to zero. Managed. 7pc6 pulse generator, at the output of circuit I 9 there is no signal. When the rear end of the band hits point A, a signal appears on sensor 1 and a number of numbers; terminal block 6 starts counting the angle of rotation of the shaping roller, 2. When you turn the forming ronic on the edge, The correct angle that corresponds to the violet of the rear end of the saw on the coil to point B, the computing unit 6 is reset to zero and starts counting the zero of the turn of the winder. When the rear Kofcua strips into a given point B, which corresponds to, the yeno yjOJi of the drum turn. (G1CH; "Block 1 is again dumped into the bullets, and from the output of the block to the input of the I & O circuit, one pulse .K (); nj podokhod; t through s, ke.my I, 9 into the scheme ynpr-iojieiuiji driven maga.pki. Odnonre; iech: but s ilyskaei-with g ≠ Tore iminu,; ,; 1Д reHej) aTopa pulses start los-gupat in counter 8, O.NP turn tjapafiaiia winder. KOGD - 1, ts1, iy KiJiieii again gets to point B., at the output (; the pogo block's engine B appears to them again 1 pulse, and pinch 8 is reset) 1 VA E-rc to zero, Psitee j:, ianorn noB coiisiP -r-is, While the speed of the drum rotation is higher than the desired creeping speed, il the number of pulses of the generator is 7, the post is o .. - - B counter 8 for the duration of one obQ rotor, winder, less than the C number (see formula 1) , at the output of the counter 8, the signal does not appear. g When d / stizhenii drum winder; this creeping speed ft at turn. .ip, on the back of the drum, the counter 8 has time to receive the number of impulses of the generator: torus, equal to. At the output of the counter, a signal is received which is fed to the output of the controlled generator and the circuit 9. The number is locked and the number / is recorded in the counter 8. When the ends of the band fall to a given point B at the output of the computing unit, a pulse is generated that passes through the circuit 9 to the winder drive control circuit, giving the command to turn off the drive and activate the brakes. Object of the Invention A device for precisely stopping a drum of a hot rolling mill coiler comprising a rear end sensor mounted in front of the coiler, a forming roller angle sensor, a drum angle sensor, a computing unit, a drum speed control node and an O, O circuit. It is, t e and so, with the aim of improving the reliability of the device in operation and simplifying its maintenance, it is equipped with a pulse generator and a counter installed at the end of the drum speed controller, i.e. shiia generator input and counter reset are connected to the output of the computing unit, z-enerato-. to the counter input, and the counter output to the second input of the controlled generator and the input cxeMi, i

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