SU1357099A1 - Apparatus for location and spacing of rolled stock into the given number of strips - Google Patents

Abstract

The invention relates to the field of rolling production and can be used for non-waste cutting. The purpose of the invention is to increase the yield of rolled products by -. higher precision cutting. The device contains sensors for the presence of rolling stock at the mill inlet and outlet, a pulsed sensor for the amp & a flying shear drum with a pulse frequency divider, a strip length meter and a strip length setting device with a memory register on its output, a comparison element for the specified and actual strip lengths, the switch circuit cut and prograk ny block. New in the device is that it is equipped with a sensor for the presence of rolled, installed at the exit of the group of stands, and a block for changing the length of the cut bands according to rolling in the mill stand group - the presence of metal at the exit and in the mill, the position of the scissors drum, the specified length of the strip and deviation of the actual strip length from the specified. 3 hp f-ly, 2 ill. (L CZ with SP About with

Description

The invention relates to rolling production and can be used, for example, on a continuous strip mill equipped with drum-type flying scissors for waste-free rolling.

The purpose of the invention is to increase the yield of rolled steel by cutting precision.

Fig. 1 shows a diagram of the device proposed without a block for changing the length of the cut bands; Fig. 2 is a block diagram of a change in the length of the cut bands.

The device contains a sensor 1 (Fig.1) the presence of rolled 2 at the entrance and the sensor 3 presence of rental at the exit of the mill stands 4, a pulse sensor 5 revolutions of the drum of scissors 6 with a divider 7 pulse frequency, a meter 8 strip length, unit 9 length length, storing the register 10 at the output of the setting device for the length of the strips, element 11 comparing the specified and actual lengths of the strips, cut-on circuit 12, program block 13 with outputs 14-19, reversible counter 20, direct counter 21, three circuits And 22-24, trigger 25 and one-shot 26 setting the length of the strip, the key 27 and the meter 28 meter strip lengths, the third sensor 29 for the presence of rolled inside the mill at the exit of the group of stands 30, block 31 (FIG. 2) changes in the length of the cut bands, additional inputs 32 and 33 (figure 1) and additional output 34 of the storage register at the output of the strip length setting unit , inputs 35-40 (FIG. 2) of the block for changing the length of the cut bands, node 41 for fixing the change of rolled length, calculator 42 for changing the length of the cut bands, single vibrators 43 and 44, triggers 45 and 46, circuit AND 47 and 48, circuit OR 49 , time delay element 50, counters 5-1 and 52 of the fixing unit for changing length, rolled Generator 53, the AND gate 54-59, flip-flops 60-62, OR circuits 63 and 64, counters 65 and 66, comparing circuit 67, dial the number of bands 68, a reset button 69 the amount of change calculator lengths of cut strips. The sensor 1 (Fig. 1) of the presence of rolled 2 at the mill input with its output is connected to the input of the one-oscillator 26 setting unit 9 for the length of the bands; sensor 3 the presence of rolled at the mill output is connected to the output by its output

five

0

The house of the program block 13 and the input 36 (FIG. 2) of the block 31 for changing the length of the trimmed strips, the pulse sensor 5 (FIG. 1) of the revolutions of the drum of the scissors 6 is connected to the input-divider 7 of the pulse frequency with the output of the first key switch 27 of the length meter 8 strips and input 37 (FIG. 2) of block 31 for changing the length of the strips to be cut, setting unit 9 (FIG. 1) of the strip length is connected by its inputs to outputs 14-18 of program block 13, element 11 comparing the specified and actual lengths of strips by its outputs is connected to the circuit switching on the cut and the reset input of the counter 28, the meter 8 is strip, the first input element 11 is connected to the parallel output of the storage register 10, and the second input - to the parallel output of the counter 28 of the meter 8 half-length, the output of the one-vibrator 26 is connected to the installation input of the trigger 25

5 and the input 35 of the block 31 for changing the length of the strips to be cut, the direct output of the trigger 25 is connected to the first input of the AND 22 circuit and the second input of the AND 24 circuit, the second inputs of the AND 22 and 23 circuits, and the first input of the AND 24 circuit are interconnected and connected to the output of the pulse frequency divider 7, the output of the circuit 22 is connected to the counting input of the counter 21, which is connected by transfer tires to the counter 20, the summing input of the latter is connected to the output of the circuit 23, and the subtracting input of the counter 20 is connected to the output of the circuit 24 and parallel output meter 20 is connected to the input data storage register 10, and the inverse output of the counter 20 is connected to the third input of the circuit And 24, the counting input of the counter 28 meter

The 5 8 strip length is connected to the output of the key 27, the first input of which is connected to the code of the pulse sensor 5 turns of the scissors drum 6, and the input 19 of the key 27 is connected to the output of the program block 13, the input 35 of the block 31 for changing the length of the cut bands is connected to the output of the single-oscillator 26 of the setting device 9 strip lengths, the input 36 of the block 31 is connected to the output of the sensor 3 presence of rolled at the output of the mill, the inputs 37-40 of the block 31 are connected respectively to the outputs of the pulse sensor 5 turns of the scissors drum 6, the sensor 29 of the presence of rolled inside

0

five

0

0

55

by the additional output 34 of the storage register 10 at the output of the setting device 9 of the strip length, the comparison element 11 of the specified and actual length of the strips, the first output of the block 31 for changing the length of the strips to be cut is connected to the additional input 32, and the second output to the additional input 33 of the storage register 10, the first reset input of the trigger 45, the setup input of the trigger 46 of node 41 are combined and connected to the calculator 42, the direct output of the trigger 46 is connected to the third input of the circuit AND 48 the second input of the last is connected to the second input of the circuit AND 47, ne And the inputs of the circuits 47 and 48 are combined and connected to the direct input of the trigger 45, the output of the circuit 47, is connected to the counting input of the counter 51, the first reset input of which is connected to the output of the time delay element 50, the parallel output of the counter 51 is connected with the data input of the counter 52, the subtracting input of which is connected to the output of the circuit OR 49, the first input of which is connected to the output of the circuit AND 48, while the second input of the circuit OR 49, interconnecting the reset inputs of the trigger 46, the counter 52, the second inputs of the reset trigger 45 and counter 51 connected between one-shot 44 output, setup trigger input 46 and the first reset input of trigger 45, interconnected one-shot 43 output, time delay element 50 input and counter 52 data recording enable input, as well as separate totalizer count 52, first, second and third outputs the counter 52 is connected to the calculator 42 of the magnitude of the change in the length of the strips to be cut, the rotation of the circuit 54 of the calculator 42 is connected to the installation input of the trigger 60, the direct output of which is connected to the second inputs of the circuits 55 and 56 connected to each other , the third inputs of which are interconnected and connected to the output of the generator 53, the output of the circuit 57 is connected to the subtractive input of the counter 65, the parallel output of which is connected to the first input of the comparison circuit 67, the second input being

the swarm is connected to the parallel output of the counter 66, the output of the comparison circuit 67 is connected to the interconnected second inputs of the circuits

25

fO 5 20 35

five

Both 58 and 59 and the OR 64 circuits, the first inputs of the AND 58 and 59 circuits are connected to the direct outputs of the flip-flops 61 and 62, respectively, the output of the OR 64 circuit is connected to the first reset input of the counter 66, the counting input of which is connected by the output of the OR circuit 63 , the parallel input of the counter 65 is connected to the output of the setting device 68, the number of lanes, the second reset inputs of the flip-flops 61 and 62, the counter 66, the first reset input of the counter 65 are interconnected. and connected to the reset button 69 and interconnected. the reset inputs of the trigger 46, the counter 52, the second reset inputs of the trigger 45 and the counter 51 of the fixing node 41 and the length of hire, the first input of the circuit 54 of the calculator 42 is connected to the trigger input 46 of the trigger 46, the first input of the cd coc trigger 45 and the single-vibration output 44 of the fixing unit 41 for changing the length of the rental, the first reset input of the trigger 60 of the calculator 42. Is connected to the third output of the counter 52 of the fixing unit 41 of the length change of the rental, the first inputs of the And 55 and 56 circuits of the calculator 42 are connected respectively to the second and first output the counter 52 of the node 41, and the interconnected output of the circuit AND 56 are the setup input of the trigger 62 and the second input of the circuit OR 63 of the calculator 42 are connected to the second input of the circuit OR 49 of the node 41 of the change fixing - the length of the rolled, the interconnected output of the circuit 55, the installation the trigger input 62 and the first input of the OR circuit 63 of the transmitter 42 are connected to the summing input of the counter 52 of the fixation unit 41 for changing the length of hire, the enable input of the data record of the counter 65 of the calculator 42 is connected to the setup input of the trigger 45 of the change fixing block 41 for hire us.

The device works as follows.

Before the start of rolling, all the triggers and counters of the device are returned to the initial state. The speed of the scissors is matched to the speed of the rolls of the exit cage. Given the number of lanes into which it is advisable to cut the rolled product of this range,

The basis of the device is the expression

2 i

5n

n

which after the output of the rental from the sensor zone of the presence of rolled inside the mill takes the form

 .

n

L i L i + -1 n-k

de 1.

1 + 1

1. 20

1-t-i

the length of the strips the roll is being cut into,

the length of the bands into which the previous roll was cut,

the coordinate of the i-ro end (previous) of the roll relative to the installation site of the presence of rolled metal at the mill entrance, reduced to the mill output, determined at the moment the roll head enters the rental area of the rolled stock at the mill output, the coordinate of the end of this roll relative to the location of the rolled rolled metal sensor the entrance of the mill, reduced to the output of the station5 10

25

thirty

the entrance of the head of the roll into the zone of the presence of rolled at the mill output.

n L

L,

14-1

It is advisable to divide the rental of this range, the length of the i-ro (previous) roll, reduced to the mill output, is equivalent to the distance between the sensors for rolling stock at the inlet and inside the mill,

given to the mill output for a given ‑ roll, equivalent to the distance between the sensors of rolled stock at the entrance and inside the mill, k is the number of lanes cut off from this roll to the time of rolling out of the gauge of rolling stock inside the mill.

At the moment when the i-th workpiece leaves the sensor 1 (fig. 1) of the presence of proat 2, the one-shot 26 operates, the trigger 25 turns on and the

20

a 57099o

scheme And 22 setting device 9 strip lengths. The signal of the one-shot 26 is fed to the input 35 (Fig. 2) of the change block 31.

5 of the length of the cut off bands and includes a trigger 45, the output signal of which opens the circuit 47 at its first input. When the trigger 25 (figure 1) is on, the pulses from the sensor 5 turns of the drum 10 of the scissors 6 through the frequency divider 7 and the open circuit 22 enter the counter input 21, and when the trigger 45 (figure 2) is on, the pulses from the sensor output 5 (FIG. 1) revolutions of the scissor drum 6 through the input 37 (FIG. 2) of the change unit 31, the lengths of the cut bands and the open circuit AND 47 arrive at the counting input of the counter 51. The counter 21 (FIG. 1) starts counting the value of x. p, and the counter 51 (figure 2) is the count Lj. The readout of the quantity x. / N ends at the moment when the hire 2 comes out (Fig. 1) from the area of the rolled stock sensor 29, the signal of which is fed to the input 38 (Fig. 2) of the block 31 for changing the length of the cut bands. A single-vibrator 44 is triggered, the signal of which turns on trigger 46 and turns off trigger 45, closes AND 47 and stops supplying pulses from the output of pulse sensor 5 (Fig. 1) of the scissors drum 6 to counter 51. (figure 2). The reading of the value ends when the sensor 3 (Fig. 1) triggers the presence of rolled products, the signal of which turns on the program block 13, the output signal of which turns off the trigger 25 c o input 14,

40, input 16 of counter 20, signal 1 appears, and the number from counter 21 is transferred to counter 20, after which counter 21 is set to zero at input 15 and prepared

45 to the next countdown.

25

thirty

35

0

five

While the trigger 25 is on, its output signal goes to the second input of the AND 24 circuit, but it does not open, since before rolling the counter 20 is reset to zero and the O signal from the output of the counter 20 has the AND 24 circuit closed at its third input.

When sensor 3 is triggered, the output signal nporpariMHoro of block 13 opens the AND 23 circuit at input 18. The AND circuit 23 opens and the pulses of the sensor 5 turns of the scissors drum 6 through the divider 7 of the pulse frequency

are fed to the summing input of counter 20, where they are added to the number x / n entered into it. When the i-ro is rolled out of the sensor zone 3, the summation ends, since the output signal 18 of the program block is removed and the circuit 23 closes. Thus, in the counter 20 accumulated number

 when the trigger 45 (figure 2) is turned on, its output signal goes to the first input of the AND 48 circuit, but it does not open when the first roll is rolled, because the trigger 46 is reset to zero by the button 69 before rolling. Fig. 1) its output signal is fed to the input 36 (Fig. 2) of the block 31 for changing the width of the cut bands, the one-shot 43 is triggered, the output signal of which is fed to the input V of the counter 52, and the number L. from the counter 51 is transferred to the counter 52, after the output signal of the one-shot 43 passing through the time element 50 holders, the counter 51 is reset to zero and G tos to the next countdown.

When rolling the first workpiece, the calculator 42 is not included in operation, since the storage register 10 (FIG. 1) at the output of the setting device 9 of the strip length before rolling is reset by the signal O from its output 34, which enters input 39 (FIG. 2) of block 31 i changes in the length of the cut bands, and schemes And 54 and 57 are closed.

A meter 8 (Fig. 1) of the strip length is included at each roll. When rolling the first roll, the comparison element 11 does not work, since the storage register 10 is reset.

At the moment of the next (1 + 1) -th blank coming out of the gpocate sensor 1 zone, the one-oscillator 26 is triggered again, the trigger 25 is turned on, and the opening circuit of the length adjuster AND 22 is turned on and the counter 21 starts counting

X -, + 1

magnitudes

P

Now along with

the opening of the AND 22 circuit opens and the AND 24 circuit. Since the latter is open, pulses are output from the output of the splitter 7 of the pulse frequency through the output input of the counter 20. At the entrance (i + 1) of the roll into the zone of the sensor 3, the presence of rolled products is activated:

gram block 13, the trigger 25 is turned on and the circuits AND 22 and 24 are closed. Thus, by the time the (i + l) th roll is entered into the zone of the sensor 3 by the counter

X 41

P

X) 1

P

21 counted number

9

20 - number

as a counter

(1, - + - n

X 1. 1 h

which

equivalent to the length of the strips into which the (1 + 1) -th roll should initially be cut.

When the program block 13 is triggered by a signal at the input 17 of the storage register 10, a number from the counter 20 is entered into it, equivalent to a length of 0

not

i-f 1

li5i iau

X

signal to

pn

the input 16 of the counter 20 is transferred to it from the counter 21, equivalent to

X j.,

tape value --- p

five

0

0

five

0

five

counter 21 is reset to zero.

Next, the counter 20 counts the length of the strips into which the subsequent roll begins to be cut, and the counter 28 of the meter 8 strips the length through the open key 19 at the inlet 27 reads the current length of the strips into which the rolling through the scissors initially begins to cut.

At the time of comparing the contents 5 of the storage register 10 and the counter 28, the comparison element 11 is triggered, the output of which the counter 28 is reset to zero, the cut-on circuit 12 is turned on. A strip of length (1 | +1) separates from the (i + 1) - th breakout. The strip length meter 8 counts the lengths of the subsequent lanes until the car leaves the sensor 3 zone. At the moment of the (i + 1) th roll out of the car sensor 1, the trigger 45 is turned on again (FIG. 2) and the fixing block 41 is opened changing the length of the rental, the circuit 48 opens, because at the moment when the first roll out of the sensor 29 zone from its output signal applied to the input 38 (FIG. 2) of the block 31 for changing the length of the cut bands, the one-shot 44 operates, the output of which turns on the trigger 46, and signal 1 at the input of V 65 tchika calculator 42 to the counter 65 from the output of the set point 68 ° zano91357099

sets n (the number of lanes on which the triggers are 61, or 62, respectively.

it is advisable to divide this prospect).

Through the open circuit AND 47, the counter 51 begins to receive pulses from the sensor 5 (FIG. 1) of the revolutions of the drum of the scissors 6, i.e. the length count begins (L +1), the output of the open circuit AND 48 (figure 2) through the circuit OR 49 pulses from sensor 5 (figure 1) arrive at the subtracting input of the counter 52 (figure 2), in which by this time recorded value L ,. Thus, the counter 52 begins counting the magnitude (L.-L.), t, .e. the magnitude of the change in the length of the (i + 1) -ro rolled with respect to the length of the i-ro rolled. Commands Res from the output of the element 11 cf (Fig. 1) are fed through an open circuit AND 57 (Fig. 2) to the subtracting input of counter 65, where the number of bands (nk) is taken into which the remaining part of the car is cut at the time of its output from the zone of the sensor 29 (Fig.1) the presence of the rental.

When the car leaves the sensor 29, the trigger 45 (figure 2) is turned off, the circuits 47 and 48 are closed, and the pulses of the sensor 5 (figure 1) to the counter 51 and 52 (figure 2) are stopped. At this point in the counter 51 recorded value (L. + 1), in the counter 52

(Bh l- ,,)

and in the counter

65 is the number (n-k), the third output of the counter 52 of the fixing unit 41 of the change in the length of the car has a signal O (since it contains the number L J-L) that goes to the first reset input of the trigger 60 and does not prohibit its operation. Through the open circuit AND 54 (the memory register 10 contains the number L,) the trigger 60 is turned on (FIG. 2), one of the schemes 55 or 56 is opened, depending on the sign of the number contained in the counter 52 of the fixing unit 41 for changing the length of the rental. At a value (LI - L.) O, the pulses from the output of the generator 53 through the open circuit AND 56, the circuit OR 49 of node 41 are fed to the subtractive input of the counter 52, and for (L-- L,) through the open circuit And 55 are fed to the summing input counter 52.

At the same time, the pulses of the generator 53 through one of the open circuits And 55 and 56 are fed to the installation inputs

and through the circuit OR 63 - to the counting input of the counter 66, the computer 42. In

c. In counter 66, the number of pulses is accumulated, which from its parallel output is fed to the second input of the comparison circuit 67, to the first input of which the number (nk) from the counter 10 is fed 65. With each comparison of the contents of the counters 65 and 66, the comparison circuit 67 operates, the signal with the output of which is fed to the second inputs of the circuits And 58 and 59 and, depending on the included flip-flop 61 or 62, is fed to the input 32 or 33 of the storage register 10 (FIG. 1), and through the circuit OR 64 (FIG. 2) the signal of the comparison circuit 67 resets counter 66 to zero

20 preparing it for the next countdown.

The trigger 61 is turned on by the first pulse of the generator 53, passing through the open circuit AND 55 at (Lj-Lj) 70

25 a, the trigger 62 is turned on by the first pulse of the generator 53 passing through the open circuit AND 56 at (L.- L.) 70. A comparison of the contents of the counters 65 and 66 is carried out until the moment until the contents of the counter 52 as a result of applying to its summing or subtracting inputs of the pulses of the generator 53 becomes equal to O.

At the moment that the contents of the counter 52 are zero by a signal, the trigger 60 is turned on at its third output, one of the AND circuits 55 or 56 is closed, and the pulses of the generator 53 are stopped in the counter 52 of the node 41

35

40

fixing the change in the length of the rental and in the counter 66 the calculator of the magnitude of the change in the length of the cut bands. Thus, oneLir is produced.

45 radio & + 1

wasp

where a is the magnitude of the change in length of the cut bands inct the remainder of the division

50

Li.

n-k

as a result, in the memory register 10 (FIG. 1) of the eye (L „-d), on

The recorded number is equivalent to the length of the stripes, the swarm is cut by the remaining portion of the rolled product, as a result of an amendment to the relative change in the length () -ro of rolled metal compared to the length of i-ro rolled metal.

and through the circuit OR 63 - to the counting input of the counter 66, the computer 42. In

In counter 66, the number of pulses is accumulated, which from its parallel output is fed to the second input of the comparison circuit 67, to the first input of which the number (nk) from the counter 65 is fed. Each time the contents of the counters 65 and 66 are compared, the comparison circuit 67 operates, the output from which It is applied to the second inputs of the circuits And 58 and 59 and depending on the flip-flop 61 or 62 turned on, it enters input 32 or 33 of the storage register 10 (FIG. 1), and through the OR 64 circuit (FIG. 2) the signal of the comparison circuit 67 resets to zero counter 66,

preparing it for the next countdown.

The trigger 61 is turned on by the first pulse of the generator 53, passing through the open circuit AND 55 at (Lj-Lj) 70,

and the trigger 62 is turned on by the first pulse of the generator 53 passing through the open circuit AND 56 at (L.- L.) 70. A comparison of the contents of the counters 65 and 66 is carried out until the contents of the counter 52 as a result of the feed to its summing or subtracting inputs of the pulses of the generator 53 become equal to O.

At the moment that the contents of the counter 52 are zero by a signal, the trigger 60 is turned on at its third output, one of the AND circuits 55 or 56 is closed, and the pulses of the generator 53 are stopped in the counter 52 of the node 41

fixing the change in the length of the rental and in the counter 66 the calculator of the magnitude of the change in the length of the cut bands. Thus, oneLir is produced.

radio & + 1

wasp

where a is the magnitude of the change in length of the cut bands inct the remainder of the division

Li.

n-k

as a result, in the memory register 10 (FIG. 1) of the eye (L „-d), on which

The recorded number is equivalent to the length of the stripes, the swarm is cut by the remaining portion of the rolled product, as a result of an amendment to the relative change in the length () -ro of rolled metal compared to the length of i-ro rolled metal.

The value of 1,

II

received -eat

as a result of the operation

L; n-k

store in counter 66

(figure 2). Upon further cutting of the rental command, the Res command from the exit of the comparison element 11 (FIG. 1) continues to arrive at the upstream input of the counter 65 (FIG. 2) through the open circuit 57 and, as a result, the content counters 65 and 66 are compared, the circuit 67 comparison, the signal of which through the circuit 58 or 59, depending on the flip-flop 61 or 62, is again fed to one of the inputs 32 or 33 (Fig. 1) of the storage register 10 and changes its contents to +1 or -1, which is the length of the cut bands until the end of the rolled product leaves the zone of the sensor 3 .

When u When the car is rolled out of the sensor 3 area. its output signal is fed to the input 36 (Fig. 2) of the block 31 for changing the length of the cut bands, a one-shot 43 is triggered, the output signal of which records the contents of the counter 51 into the counter 52 through the temporary element 50. delays, the counter 51 is reset to zero, the triggers 61 or 62 are turned off by their first reset inputs, and the reset 66 is duplicated via the circuit OR 64.

When rolling the following blanks, the operation of the device is similar.

Thus, during operation of the device, starting from the second billet, the rolling initially begins to be cut into strips of length 1, from the moment of rolling out of the rental zone 29 of the presence of rolled products installed inside the mill at the exit of the stand group 30, the rolling is cut into strips length (1, - +, ± A), and from some point on the strip length (1.4, ± L ± 1). With

1. Device for cutting rolled not a specified number of lanes, containing sensors for rolling stock at the mill inlet and outlet, pulse sensor for the shear drum speed with a frequency-pulse divider, a strip length meter and a strip length setting unit with a single vibrator and with a storage register at its output, the element of comparison of the specified and actual lengths of the strips, the cut-on scheme and

By this, the change in the length of the cut off strips 50 is proportional to the change in the length of the (i + +1) -th rolled product relative to the size of the i-ro rolled product.

Compared with the known, the proposed device allows eliminating 55 software blocks, connected with their cutting of the last lanes on the car, the input with the sensor of the presence of rolled products on substandard lengths that have the mill outlet, and the outlets from the target when using the known strip length , while the device element, for the reason that it is. comparing given and actual

1357099

12

does not take into account changes in the length of the rolled steel relative to the length of the previous rolled metal.

As shown by tests carried out on a continuous strip mill MMK, about 65% of rolled billets, the change in the base length of rolled products brought to the mill output obtained on two adjacent peals lies within + (0.3-0.5) m.

Thus, with the help of a known device, only 35% of the billets are precisely cut, and the remaining 65% or the last strip is formed (0.3-0.5) m in length, which is defective, or the last strip on the roll is shorter than the rest by ( 0.3-0.5) m. The proposed device makes it possible to eliminate the formation of such last bands on almost 98% of the rolled blanks, i.e. its accuracy is 63% higher than the accuracy of the known device.

The increase in yield by using the proposed device is achieved by switching to 32% of the rolled blanks of the last strips of length (0.3-0.5) m from rejects to fit in the composition of strips whose length varies in proportion to the change in the length (i + 1) relative to the length of the 1st roll, since a change in the length of (i + 1) -x rolls relative to the length ix of rolls in the direction of increase or decrease, is on average the same when rolling a batch of blanks.

F o rmula of the invention

Claims (4)

1. Device for cutting rolled not a specified number of lanes, containing sensors for rolling stock at the mill inlet and outlet, pulse sensor for the shear drum speed with a frequency-pulse divider, a strip length meter and a strip length setting unit with a single vibrator and with a storage register at its output, the element of comparison of the specified and actual lengths of the strips, the cut-on scheme and the program block, which is connected by its input with the sensor of the presence of rolled metal at the mill output, and the outputs, with a preset of the strip length, while the element of comparison between the specified and actual the lengths of the strips. connected by their output with the cut-on circuit, and the inputs by the Sd setter and strip length meters, the setting unit of the strip length made in the form of interconnecting reversible and direct counters, three AND circuits, a trigger and a single vibrator, 9- meter the strip lengths are made in the form of a key and a counting circuit connected in series, the outputs of the latter are connected to one of the inputs of the comparison element, and the key inputs are connected one to the output of the software block, the other to the output of the pulse knob of the drum speed indicator and, the other inputs of the reference element are connected to the outputs of the memory register, whose inputs are connected to the outputs behind / l, the test for the length of the lanes, and the trigger is connected by its outputs to the circuits And counter, and a third at the input of the direct counter, the counters are connected by transfer tires, and one of the outputs of the main reversing counter is connected to one of the circuit inputs AND at the input of the reversible counter, different from the fact that, in order to increase the yield of rolled products by higher and accuracy of cutting, it is equipped with a third gauge for the presence of rolled metal installed at the exit of a group of stands, and a block for changing the length of cropped strips, and the storage register at the output is set by the length of the cropped strips supplemented with two inputs and one output, while the block of changing the length of clipped strips made with six inputs and two outputs, with its first input block for changing the length of the trimmed strips connected to output one vibrator unit setting the length of the bands, the second output of the first one-shot. the input of the time delay element and the data recording resolution enable input of the second counter., as well as the separate summing input of the second counter, the first, second and third outputs of the second counter are connected to the calculator of the change in length of the trimmed strips, and the installation input of the first trigger interconnected the second inputs of the AND schemes, the fixation unit of the change in the length of the rolled products, are respectively the first, second, third, and fourth inputs of the block for changing the length of the cut bands Eye input - with the output of the sensor availability of hire at the mill output, the third ,. the fourth, fifth and sixth inputs are respectively with the output of the pulse sensor of the scissors drum speed, with the output of the sensor of the presence of rolled metal at the output of the group of stands, with an additional output of the storage register at the output of the setting unit of the length of the cut bands, with the output of the comparison element of the specified and actual lengths of the bands, and the first and second outputs, respectively, with the first and second additional inputs of the memory re-: Oh oh five the gistra at the output of the setpoint adjuster of the length of the cut-off lanes, 2. A device according to Clause 1., which is - that the block for changing the length of the trimmed strips is implemented in the form of interconnected fixation unit for changing the length of the rolled stock and the calculator of the magnitude of the variation of the length of the trimming strips. 3. The device according to claim 2, characterized in that the fixation unit of the change in the length of the rolled product is fulfilled in the form of interconnected two single vibrators, two triggers, two AND schemes, an OR circuit, a time delay element and two counters, the first reset input the first trigger is connected to the installation input of the second trigger, the direct output of which is connected to the third input of the second circuit And, the second input of which is connected to the second input of the first circuit And, the first inputs of the circuit And are combined and connected to the direct output of the first; trigger, the output of the first circuit And is connected to the counting input of the first counter, the first reset input of which is connected to the output of the time delay element, and the parallel output of the first counter is connected to the data input of the second counter, the subtracting input of which is connected to the output of the RSII circuit, the first input of which connected to the output of the second circuit AND, while the second input of the OR circuit, interconnected, the reset inputs of the second trigger, the second counter, the second reset inputs of the first trigger and the first counter, connected between the output of the second one the new vibrator, the setup input of the second trigger and the first reset input of the first trigger, connected between  the output of the first one-shot. the input of the time delay element and the data recording resolution enable input of the second counter. as well as the separate summing input of the second counter, the first, second and third outputs of the second counter are connected to the calculator of the change in length of the cut bands, and the installation input of the first trigger connected to each other second inputs of the circuits And, the fixing unit of the change in the length of the rolled products are the first, second, third and fourth inputs of the block for changing the length of the cut bands, respectively. 4. A device according to Claims 1 and 2, characterized in that the calculator of the magnitude of the change in the length of the cut bands is made in the form of interconnected generator, six AND circuits, three triggers, two OR circuits, two counters, a comparison circuit , which is useful to divide rolling and reset buttons, while the output of the first circuit AND is connected to the installation input of the first trigger, the direct output of which is connected to interconnected second inputs of the second and third schemes I, the third inputs of which are interconnected and connect The output of the generator is connected to the subtracting input of the first counter, the parallel output of which is connected to the first input of the comparison circuit, the second input of which is connected to the parallel output of the second counter, and the output of the comparison circuit is connected to the second inputs of the fifth and the sixth AND and second OR circuits, the first inputs of the fifth and sixth AND circuits are connected to the direct outputs of the second and third triggers, respectively; the output of the second OR circuit is connected to the first reset input of the second counter ika, the counting input of which is connected to the output of the first OR circuit, the parallel input of the first counter is connected to the output of the setting unit for the number of lanes, the second reset inputs of the trigger and the second counter and the reset input of the first counter are interconnected and connected to the reset button and interconnected inputs reset the second trigger, the second counter and the second reset inputs of the first trigger and the first counter of the latching node 5 0 5 0 five about 0 the length of the rental, the first input of the first circuit And the transmitter is connected to the interconnected installation input of the second trigger, the first reset input of the first trigger and the output of the second one-oscillator of the fixing length change node, the first reset input of the first calculator of the calculator of the change length fixing node rolled, the first inputs of the second and third circuits And the transmitter is connected respectively to the second and first outputs of the second metering node of the change in the length of the rolled, combined Interconnected output of the third circuit AND, the setup input of the third trigger and the second input of the first circuit OR of the transmitter are connected to the second input of the OR circuit of the change in the rental length, combined between the output of the second circuit AND, the setup input of the second trigger and the first input of the first circuit OR calculator connected to the summing input of the second counter of the fixation unit for changing the length of the car; the enable input of the data record of the first counter of the calculator is connected to the installation input of the first trigger of the fixing unit In this case, the combined inputs of the first and fourth circuits And the calculator are the fifth input of the block for changing the length of the trimmed strips, the first input of the fourth circuit And the calculator is the sixth input of the block for changing the length of the cropped strips, and the outputs of the fifth and the sixth circuit and the insulator are respectively the first and second outputs of the block for changing the length of the cropped bands. ; Q О П Q Q О О П . about oTJlJi,  12 -1-1 g I 1-- -, I -J g "31, Vn ll L..rOJ Lj4Tl U: Editor I. Gorna FIG. 2 Compiled by A. Sergeev Tehred I.Popovich Proofreader A. Zimokosov Order 5923/7 Circulation 481 Subscription VNIIPI USSR State Committee On affairs of inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4