SU1416303A1 - Arrangement for cutting out bar stock - Google Patents

Abstract

The invention relates to rolling production and can be used on small-section mills when cutting a roll into strips with flying scissors. The purpose of the invention is to increase the productivity of the mill by increasing the length of the cut bands. The length of the strip is predicted by dividing the calculated length (DB) of the roll by the sequential

Description

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with

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a series of integers until the quotient of 1-lnn falls within the range of valid lengths of the strips. After block 17 calculates the predicted total length of the bar, Generator 36 is turned on and I is counted I of this length by Block 42. Simultaneously with; By this, the omnilitator 41 of the strip length: (DP) divides the frequency of the pulses of the generator 36 into the initially selected n number of lanes. After the end of the counting of the full length of the roll by block 42j

The DG value will be stored in the A1 calculator for uniform cutting of the given roll at the selected item. Comparison unit 40 checks the condition of finding the VD band in the range of allowable values of the DC, accepted by the refrigerator mechanisms. If the condition is fulfilled, then the VD band is set up by the meter 18 for cutting the roll, Otherwise, the block 42 and the calculator 41 begin the next cycle. 1 il.

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The invention relates to rolling production and can be used on small-section mills when cutting a roll into strips with flying scissors.

The purpose of the invention is to increase the productivity of the mill by increasing the lengths of the cut bands,

The drawing shows a block diagram of the device.

A device for cutting small-size rolled products 1 at mill 2 contains volatile, scissors 3 with block 4 slice, pulse sensor 5 revolutions of the drum of scissors, register 6 connected by an information channel with counter 7, register 8, counter 9 and comparison element 10 whose information inputs are connected with outputs of register 8 and counter 9, sensor 11 for rental at the entrance to the mill, connected to input 12 of the installation in O of counter 7 and dynamic control input 13 for register 6, sensor 14 for rental at the output of the mill, connected via the second input of the OR 15 element with the input 16 of the installation in the counter O. 9. The register 6 and the counter 7 are included in the prediction block 17, the Register 8, the counter 9, the reference element 10 and the OR element 15 are included in the meter 18 of the strip length,

The unit additionally includes - elements 19 and 20 comparisons, the settings 21 and 22 of which are respectively equivalent to the values 1 ,,, and the trigger 23, which includes the input 24 and the disconnecting input 25 of which is connected to the outputs of the elements 19 and 20 of the comparison, respectively, And 26,

the first input of which is connected to the output of the trigger 23, the counters 27 and 28 of which are compared on the comparison element 29, the counter 30

the length of the strip, the output of which is connected to the information inputs of the elements 19 and 20 of the comparison and register 8, the counter 31 and the element 32 of the comparison, the information inputs of which are connected to the outputs of the counter 31- and register 6, and the output with the second input of the element 26, countable input the counter 27 and the inputs 33-35 of the installation in About the counters 28, 30 and 31, respectively, the generator 36, the dinada input 37 of which is connected to the sensor 11, and the output is connected to the counting input of the counters 28 and 31, and the output of the And element 26 is connected to the ECM 38 installations

the counter 27 in state 2, the disconnecting input of the generator 36 and the control input of the register 39 of the register 8, the Elements 19 and 20 of the comparison, the trigger 23 and the element And 26 are part of the block

40 comparisons. Counters 27.28 and 30 and reference element 29 are part of the strip length calculator block 41. The counter 31 and the comparison element 32 are included in the block 42 of the roll length reference.

The device works as follows,

In the initial position, in the absence of rolling in the mill line, the counters 7, 9, 28, 30 and 31 are set to zero, the counter 27 is set to the equivalent state 2, the trigger 23 and the generator 36 are off, the signals at their outputs

no, settings 21 and 22 are selected as equivalent to 92 m and 1 max. 115 m respectively.

With the emergence of roll at the exit to the camp unit 17 begins to predict the full length L of roll. Prediction is carried out by summing the pulses of sensor 5 during the period of moving the roll through the control section at the entrance to the mill, monitored by sensor 1 1. When the block disappears from the control section of the pte signal of the back edge of sensor II, number i, equilibrium state of the counter 7, transferred to register b, after which the counter is set to the zero state. The same signal turns on the generator 36, the pulses of which begin to be summed by the counters 28 and 31.

Each time the counter counts 28 the number of iguls that are equivalent to the state of the counter 27, the control element 29 is activated, which is indicated by the counter 30, which increases its state by one. In this case, the counter 28 is set to the zero state (not shown). Since the counter 27 in the initial position was set to a state equivalent to the number 2, then every second pulse of the generator 36 is counted by the counter 30.

This mode of operation continues up to the count with a pulse of 31 number of pulses, equivalent to the state of register 6, which is indicated by the comparison element 32. At this point, the state of the counter 30 becomes equivalent to the length of the strip for evenly cutting this roll into two stripes. So, if the length of the roll, for example, is 422 m, then the counter 30 counts 422: 2 211 imp. In the process of counting sequentially

elements 19 and 20 of the 45 bands from the field of view of the sensor 14 operate

Nin In this case, the trigger 23, when the element 19 is triggered, is turned on, and when element 20 is triggered, it is turned off, i.e. remains in its original, disabled state. The element 26 also does not change its state, which leads to the absence of a signal at the output of the comparison unit 40.

The output signal of the comparison element 32 sets the counters 28, 30 and 31 to O, while the counter 27 counts one pulse, with the result that its state becomes equivalent to the number 3. Start

counter 9 is reset, i.e. meter 18 strip length prepared for acceptance of the next roll.

In a similar way, the length of the strips is determined during the rolling of all test rolls.

Formula

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Device for cutting small-grade; rolled stock containing flying shears with a cutting unit, pulse sensor of the shear drum speed.

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The next cycle of calculating the strip length is found for p 3, in which the circuit elements operate in a similar mode.

By the end of this cycle, the counter 30 has accumulated a number of pulses equal to 422: 3 140 pulses, which does not trigger the trigger 23 (the output signal of the comparison element 20 turns off when the counter counts 30 the number of pulses 115).

The next cycle starts when p 4, To its end (block 42 counted the number of pulses equivalent to the total length of the roll 422 m) counter 30 counted the number of pulses equivalent to 422: 4 105 m. In this case, only the reference element 19 is activated, and the comparison element 20 does not work (105 115), and the trigger 23 is in the on state. In this case, the output signal of the element 26 turns off the generator 36, sets the counter 27 to the initial state and allows the transfer of the state of the counter 30 to the register 8. With some delay (not shown), the output signal of the comparison element 32 sets the counters 28 30 and 31 to zero state, thereby preparing blocks 40-42 for acceptance of the next roll.

When the beginning of the roll breaks through the field of view of the sensor 14, 35 starts the input 16 of the counter 9, which starts counting the current strip length. If the states of counter 9 and register 8 are equal, element 10 is triggered. comparison, block 4 of the cut is cocked and the 1-ra strip 104 m long is separated from the roll. At the same time, the counter 9 is zeroed and the 2nd, and then all subsequent lanes begin to count. With the disappearance of the last25

thirty

40

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counter 9 is reset, i.e. meter 18 strip length prepared for acceptance of the next roll.

In a similar way, the length of the strips is determined during the rolling of all test rolls.

Formula

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Device for cutting small-grade; rolled stock containing flying shears with a cutting unit, pulse sensor of the shear drum speed.

b | a block of prediction and measurement of the strip length gel, the counting inputs of which are connected to a pulse sensor, the first and second probes of availability, connected with the differing inputs of the prediction block and measuring the length of the strip, respectively, the output of the length gauge It is connected to the cutting unit, which means that, in order to increase the productivity of the mill by increasing the length of the strips to be cut, a comparison unit was introduced into it.

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the length of the strip, the block of reference for the length of the roll, whose information input is connected to the output of the prediction block, and the output to the enabling input of the comparison block and the control input of the strip length calculator, the generator, which includes the input of which is connected to the first rental sensor 10, and the output - with a counting input of a block of roll length and a counting input of a strip length calculator, and the output of the comparison block is connected to the installation input; A computer that is disconnected by the input of the POG is connected to the information input-generator and the control input by the companion unit and the meter of the strip length meter.

Claims (1)

Formula The device for cutting small-sized; rolling, containing flying scissors with a cut block, a pulse sensor of revolutions of the scissors drum. the prediction unit and measure the gel of the strip length, the counting inputs of which are connected to the pulse sensor, the first and second rental sensors, connected to the distinguishing inputs of the prediction unit and the strip length meter, respectively, and the output of the length meter is half-connected to the cut block, about where, in order to increase the productivity of the mill by increasing the lengths of cut strips, a comparison unit, a strip length calculator, the output of which is connected to the information inputs of the comparison unit, are introduced into it a strip length meter, a roll length reference unit, the information input of which is connected to the output of the prediction unit, and the output is with the enable input of the comparison unit and the control input of the strip length calculator, a generator, including an input of which is connected to the first rent availability sensor, and the output is with a counting the input of the unit for reading the length of the roll and the counting input of the calculator for the strip length, and the output of the comparison unit is connected to the input of the installation at 0 ”of the specified calculator, disconnecting the generator input and the control input measure strip length.