SU812365A1 - System for automatic tracking of furnace coiler sheds to reversible sheet hot rolling mill - Google Patents

Description

drum throat construction, control unit connected to impulse sensor outputs, throttle throat corner (s) assembly of a winder, including a binary reversible counter-divider controlled by a control unit, one mode or two thresholding mode adjuster for the drum snub, angle decoder the position of the throat (s) of the winder drum, connected to the outputs of the counter-divider and mode adjuster, the light indicator of the angular position of the throat (sheds) of the drum of the winder, connected to the output of the decoded display position, node stop and adjust the throat (sheds) of the drum mottshki at the end of the coiling or idling mode, including the adjustment unit of the throat (sheds) of the motsshka drum at the end of the idle mode and the winding drum throat (sheds) adjustment of the winder drum at the end of the winding strip which are connected to the outputs of the control unit, the decoder of the angular position and the mill control unit, and the outputs to the inputs of the logic unit, the key controlled by the throttle control unit (shed) of the winder drum at the end of idling and The output of the counter counter with the input of the binary-decimal counter; a digital indicator of the number of turns of the strip on the reel drum when winding and winding it. FIG. 1 shows a block diagram of a system for automatic tracking of sheds of furnace coilers; Fig. 2 is a block diagram of a control unit; in fig. 3 is a block diagram of a unit for adjusting the throat (s) of the winder drum at the end of idling; figure 4 is the same, at the end of the winding strip; in fig. 5 is a block diagram of a logic unit. The automatic tracking system G of the kilns of the coilers contains connected to the drum of the winder 1, on which the mouths 2 are located, the sensors 3 and 4. pulses, the control unit 5, the binary reversing counter separator 6, the decoder 7 of the corner position of the mouth of the mouth of the drum mota ki, the indicator light 8 of the angular position of the throat (sheds) of the drum winder, unit 9 of the reception mode of the ribbon on the drum of the one or two mouths, key 10, binary-decimal reversing counter 11, decoder 12, digital indicator 13 of the number of turns of the strip per bar Abane winder, throat throttle adjustment unit (zevon) of the winder drum at the end of idling, throttle throat throttle adjustment unit 15 at the end of the strip winding, logical block 16, output block 17, mill control unit 18. When a strip is received on the winder drum, the pulses from sensors 3 and 4 enter the control unit 5. The control unit 5 generates counting pulses arriving at the counting input of counter separator 6 and sets it to the add mode. From the output of the counter-divider 6 pulses, multiples of one revolution of the winder drum, through open-. The key 10 is fed to the counting input of the counter 11, operating in the addition mode. Counter 11 determines the number of turns of the strip by. the drum of the winder, which is decrypted by the decoder 12 and displayed on the digital indicator 13. The counter-divider, 6 determines the angular position of the throat (s) of the drum of the winder, which is decoded by the decoder 7. The control unit 5 contains the formers 19 and 20 signals, the inverter 21 and 22, dynsmic elements 23 and 24, logic elements 25 and 26 I. When the drum of the winder rotates, the sensor 3 pulses through the shaper 19 signshov to the input of the dynamic element 24, and through the inverter 21 to the input of the dynamic element 23. At the output d namic member 23 is formed at a leading edge pulse, and the output of the dynamic element 24 is formed on the trailing edge pulse 3 the pulse signal. The pulses from the outputs of the dynamic elements 23 and 24 are fed to the first inputs of the logic element. cops 25 and 26, respectively. The second inputs of logic elements 25 and 26 And the signal of the sensor 4 pulses through the driver 20 signals. The sensors 3 and 4 pulses are arranged in such a way that the signals at their output overlap each other by 1/3 of their duration. When the strip is wound on the drum of the winder, the signal from the sensor 4 pulses is lagging behind the signal of the sensor 3 pulses and to the counting input of the counter-divider 6 The pulses come from the output of the static element 26 I. When the strip is rolled up, the signal from the sensor 4 pulses is ahead of the signal from the sensor 3 pulses and to the counting input of the subtractor of separator 6 there are pulses from the output of the logic element 25 I. The 3 and 4 pulses from the output of the formers 19 and 20 signals and their inverse value from the outputs of the inverters 21 and 22, respectively, enter the 14 block for setting the shed (s) of the reel drum at the end of idling and the block 15 for adjusting the reel of the reel drum at the end coiling strip. Block 14 adjustment of the throat (sheds) of the drum winder at the end of idling contains the trigger 27 of idling, the trigger 28 stops the drum of the winder and the circuit 29 of logic. With

setting the idle mode, the winder signal from the mill control circuit 18 sets the idle trigger 27 to a single state, and the trigger

The reel of the reel of the winder is in the zero state. A single signal from the direct output of the idling flip-flop 27 is fed to logic block 16, where a signal is generated to enable the rotation of the reel drum in the idling mode. The zero signal from the inverted output of the trigger 27 of idling is fed to the input of the key 10 and closes it. When removing the idling mode of the winder, the signal from scheme 18 of the mill control is not received. At the approach of the throat of the drum winder to the starting point of the receiving strip scheme

29logics on the direct and inverse values of the signals of the sensors 3 and 4 pulses from the control unit 5 and the signal of the decoder 7 of the angular position of the shed (shed) of the drum of the winder generates a pulse after 3/4, 2/4 or 1/4 of the duration of the signal of the decoder 7 of the angular the position of the throat (s) of the drum winder. This impulse arrives at the trigger inlet 28 of the reel drum and sets it to one state. A single signal from the forward output of the stop 28 of the reel of the reel drum sets the trigger 27 of the idling to the zero state. The zero signal from the direct output of the idling trigger 27 removes the signal to turn on the rotation of the drum winder in idle mode in the logic block 16,

and a single signal from the inverse trigger output. 27 idling opens the key 10. Zev drum winder - at the starting point of the strip. Block 15 adjustment of the throat of the drum winder at the end of the winding strip contains an element 30 And, the trigger 31 push forward, the trigger 32 stop the drum winder 30 And, circuit 33 logic. When the coiler winds the coiler from the mill control circuit 18, a signal is received to the first input of the logic element 30 I and to the coiler drum stop trigger input, set it to the zero state. The forward push trigger 31 is in the zero state, the signal at its direct output missing. At the end of the winding of the strip and the exit of its end from the throat of the drum of the winder, the drum continues to rotate and the shed passes the starting point of the strip. To return the drum winder to the starting point for receiving the strip, logic unit 16 generates a signal which, via logic element 30, sets the forward thrust trigger 31 into one state. A single signal from the direct output of the trigger 31 of the push. Forward it enters the loggia block, where a signal is generated.

The start of the push of the drum forward of the winder and the drum of the winder begin to rotate in the opposite direction of the winding of the strip. The mouth of the baulker of the winder returns to the starting point of the receiving strip. When the winder's throat approaches the starting point of the strip, logic circuit 33 takes the direct and inverse values of the signals of sensors 3 and 4 pulses from the control unit 5 and the signal of the decoder 7 of the angular position of the drum thunder (sheds) of the winder generates a pulse after 3 / 4, 2/4 or 1/4 duration of the signal of the decoder 7 angular position of the throat (s)

5 drum winder. This pulse sets the trigger 32 of the reel drum to a single state. Single signal from the direct output of the drum stop stop of the winder

0 sets trigger 31 forwards to zero state. The zero signal from the direct output of the push forward trigger 31 removes the push start signal of the drum winder in logic block 16. Zev drum drum of winder 5 at the starting point of the strip reception.

Logic block 16 contains a set of logic elements 34 I. Depending on. the value of the signals at the output of the decoder 7 of the angular position of the ground (zev) drum winder, decoder 12, block 14 adjusting the throat (s) of the drum winder at the end of idling, block 15 adjusting the drum winder when the end of winding strip at the output of a set of logical elements 34 And, control signals are generated, which determine the sequence of winding the strip from the drum of the winder and the idle mode

0 moves and entering the output block 17.

The output block 17 consists of a set of intermediate relays, controlled by the output signals of the logic block 16: control contactors

5 of the scheme 18 of the mill control.

Driving the strip, counters 6 and 11 are transferred to control mode 5 in subtraction mode. With an appropriate number of turns of the strip on the drum of the winder, the logic unit 16 sends signals to the mill control unit 18 to slow down, compress the strip and stop the mill via output unit 17. When the strip leaves the throat of the rabbit winder (point A), the drum of the winder turns to a certain angle (the angle formed by the throat of the winder and straight through the center of the drum and point A) to a complete stop. The unit 15 for adjusting the throat of the drum of the winder, according to the signals of the control unit 5, the decoder 7 of the angular position and the control unit 18, outputs a signal through the lo- unit 16, output unit 17

to the mill control unit 18 to turn on the rotation of the drum of the winder at a slow speed (push forward) until the opening of the drum will take up the position at point A corresponding to the position of the opening of the drum of the winder necessary to receive the strip. When the reel is occupied by the position at point A, block 15, through blocks 16 and 17, sends a signal to the mill control unit 18 to stop the reel. Block 15 also performs correction of the breakpoint (point A) —the adjustment of the angular position of the throat.

When winding the strip from the drum of the winder 1 is completed and the idle mode is turned on, the throat adjustment unit 14 when the idling stops at the signal from the mill control unit 18 closes the key 10, not skipping counting pulses that are multiples of one turn of the winder drum from the divider counter 6 in binary -particular counter 11 Counter 11 is in the zero state, and on the digital indicator 13 zeros are displayed, indicating that there is no band on the reel drum. Simultaneously with the closure of the key 10, the unit 14 sends a command to the mill control unit 18 to rotate the reel drum at a slow speed (push back) in the direction of winding the strip. The control unit 5, according to the signals of the sensors 3 and 4 pulses, generates the counting pulses fed into the counter-divider 6, setting it to the subtraction mode. The counter-divider 6 determines the angular position of the throat (sheds) of the winder drum, which is decrypted by the decoder 7 of the angular position and illuminated by the light indicator 8. When the idle mode is turned on, the throttle throat unit (sheds) of the winder when it finishes winding over the signal from control unit 18 by the mill and signals of the control unit 5, the decoder of the angular position 7 stops the throat (shed) of the reel drum at point A, which corresponds to the position of the left side, necessary for receiving the strip. two strips zevami osta11avlivaet unit 14 at the point A shed finds schiys closer to point A in the course of rotation. Block 14, the same, makes the adjustment of the position of the sow at point A when stopping the adjustment of the throat. .

The use of an automatic tracking system for the furnaces of furnace coilers to control the hot rolling reversing sheet mill will allow, with digital indication, to take into account the number of turns of the strip on the drum of the winder when winding and winding, accompany with light indication the position of the mouth of the drum of the winder when winding and winding the strip or re, idle stop, stop the throat (s) of the drum of the motachka in the position necessary to receive the strip after winding or idling is completed, adjust at the angular position of the shed to the position necessary for receiving the band at the stop, exclude emergency modes during the operation of the mill at the reception of the band, increase the efficiency of control and productivity of the mill.

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Claims (1)

Invention Formula An automatic tracking system for the throat of furnace coilers to a hot rolling reversing sheet mill, comprising a pulse sensor that is rigidly connected to the reel motor shaft, a binary-ten reverse version, a decoder, a logic unit, and an output unit, characterized in that In order to increase the speed of control and productivity of the mill, the system additionally contains a pulse sensor, a control unit, a binary reversible counter-divider, and a strip receiving mode for a winder drum with one or two vum zevami, decoder angular position of the pharynx (pharynx) 0 drum winder, light indicator of the position of the throat of the drum winder, unit for adjusting the throat of the drum winder at the end of idle mode, block for adjusting the throat of the drum for winder when the winding of the strip is finished, key, digital indicator of the number of turns of the strip on the drum of the winder when winding and winding the pulse sensors are rigidly connected to the motor shaft of the winder, the outputs of the pulse sensors are connected to the inputs of the control unit, the first output of which is connected to the input of the binary reversible counter divider, and the second output - with the second inputs of the unit for adjusting the throat of the reel drum at the end of idling and reeling the strip, the third inputs of which are connected to the output of the mill control unit, and the first inputs are connected to the first 0 by the output of the decoder of the angular position of the throat of the drum winder, the inputs of which are connected to the outputs of the setting unit of the strip receiving mode and the binary reversible counter-divider, and 5, the second output is connected to the input of the light indicator of the angular position of the winder drum threshing unit, the second output of the divider counter is connected via the first key input to the binary-decimal counter, and the second key input is connected to the first output of the winder throat adjusting unit at the end of idling, The second output of which and the output of the drum throat trimming unit at the end of the coiling is connected to the first and second inputs of the logic unit, respectively, the third and fourth inputs of which are connected respectively to the second output By using the decoder for the angular position of the throat of the drum of the winder and decoder, the first output of which is connected to the input of the digital number indicator 81 5 turns of the strip on the drum of the winder, the output of the logic unit is connected through the output unit to the input of the mill control unit. Information sources taken into account during the examination I USSR Author's Certificate, No. 549188, cl. B 21 B 37/00, 1975.