SU609565A1 - Device for determining the unrolled length of an ingot - Google Patents

Description

one

The invention relates to the automation of the rolling production of the megalurgy industry, and in particular to the automation of reversing crimp mills.

Closest to the described invention to the technical essence and the achieved result is a device containing a sensor. the presence of metal in the rolls, a pulse sensor of the angle of rotation of the mill roll, a skip counter, a memory device, reversible counters N.

A disadvantage of this device is. The fact that during multi-ingot rolling, which is currently the main rolling, the device does not control the length of the Henpo rolled part of each individual ingot. The control of the non-rolled part makes it possible to capture the ingot B by the mode of acceleration of the drive rolls and to ensure the regulation of the magnitude of the capture speeds. and ejection.

The aim of the invention is to determine the length of the non-rolled part of each individual spitka in case of multi-wedge rolling 1e.

This goal is achieved by the fact that in the proposed device the equipment is introduced. ttot, pulse switches, pulse distributors, second reversible counters, the output of the logic device connected to the first input of the switches and the input of the frequency divider, the output of which is connected to the second input of the switches, the third and fourth inputs of the switches are connected to the output of the skip counter (even, odd), the switch outputs are connected to the first inputs of the pulse distributors, the second inputs of which are connected to the outputs of the first reversible counters, and the third inputs to the output of the gate count, the first The e outputs of the pulse distributors are connected to the counting inputs of the first, reversible counters, and the second to the counting inputs of the second reversible counters, the second, third and fourth inputs of the second reversible counters are connected in parallel with the corresponding inputs of the first reversible counters.

The drawing shows a structural scheme of the proposed device.

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The device contains a logical device 1, switches 2, 3 pulses, a divider 4 frequencies, a counter of 5 gaps, races P |) sdolitP-pi 6, 7 pulses, the first reverser counters 8, 9, the second reversible counters 10, 11, software driver unit 12, metal presence sensor 13 in rolls, pulse rotation sensor 14 of the mill roll, keys 15-26, two-way emitters OR 27-32, organ zero 33, 34, memory 35.

In the initial state before rolling or in the pause between skips, the output of the logic device is blocked by a signal from the sensor of the presence of metal in the sticks. When the device is turned on by the signal, work Or after rolling the previous spit on the signal, the end of the cycle counters,. 8-11 are set .to zero, state; The counters of passes of the installa- tion are in the state of pass-first, the pass is odd. The signal skips the key 21 and opens the information from the storage device 35 about the initial length of the ingot to be copied into counters 8 and I. The signal skips the odd number opens the key 23 and the information from the memory 35 about the magnitude of the length of the slider in the mountain The skip is written to counters 9 and 11. Information from the memory device 35 is briefly transmitted by the signal: start, end of skip ,. end of cycle.

Counters 9 and 11 on the signal odd

set to the summation mode, and the counter 8 and 1O to the subtraction mode. By the odd signal, the keys 2O, 24 and 26 are opened to pass pulses from the divider 4 frequencies to the counting input of counters 9 and 11 and the key 17 to pass pulses from the logic device 1 to the fused inputs 8 and 1O. The key 22 is an inverse zero output of the organ 33, the direct output is when the key 25 is locked,

The signal from the skip counter Skip No. determines the length of the ingot increment for the subsequent skip, Recorded into the first and second reversing counters.

During the rotation of the pinch rolls "the pulses from the sensor 14 arrive at. key entry 15. When the signal of metapaths in the rolls is received, the impulse Е from sensor 14 goes to КЛ1Очи 17, 19 and de-type 4 frequencies. Through oi, covered keys 17 and 22 pulses are sent to the subtraction in counter 8. Pulses from the divider 4 frequencies through public keys 2О, 24 to 2 & They are afraid to add up to the Yu and 11 counters. account information & zero organ 33 blocks

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on the reverse output, the key 22 and opens on the direct output the key 25. The pulses from the device -1 through the public keys 17 and 25 are transferred to the subtraction in the counter 1O

In the process of rolling, from the counter 8 information about the length of the non-projected part of the first ingot is given, from the counter 10 - the second ingot. In the counters 9 and 11, information about the length of the ingot is accumulated for the next pass. When dvuhsnite rolling divider 4 frequency- provides the frequency division from the logic device into two and by the end of the pass, as the keys 24 and 26 are open, information on the length of the ingots fe taking into account the elongation of the ingot for the next pass will be recorded in each counter 9 and 11. .

At the end of rolling in the first pass, the pass counter issues an even signal instead of an odd signal. At that, key 16 opens, key 23 closes, counters 8 and 1O are set to summation mode, and counters 9 and 11 are in subtraction mode. The keys 18, 22 and 25 open to pass pulses from the 4 frequency divider to the counting counters. 8 and 10, and the key 19 opens the day of the pulse transmission from the device 1 to the counting inputs of the 1COB 9 and C, the key 24 is opened by the inverse zero output of the body 34, the direct output of which blocks the key 26. By signal, the end of the passage of information on the ingot length increment for A pass from memory 35 is briefly outputted to the installation inputs of counters 8 and 10 through a public key 16. Next, the calculation cycle is repeated. The frequency division factor is selected depending on the number of ingots rolled in one pass, respectively, and the number of reversible counters is determined (the drawing shows the device for the case of pair rolling of ingots). The implementation of the proposed device allows you to determine the length of the non-rolled part of each ingot, which makes it possible to carry out the ingot inlet in the mode of acceleration of the drive of the dead rolls and to ensure the regulation of the size of the capture and release rates The implementation of the invention with the device regulates the capture speeds to reduce drums. load in gpp and the mill line of the rolling mill and, accordingly, to increase the reliability of operation of the mill. lines.

Form la invention

The device for determining the length of the non-rolled part of the ingot with multi-ripoKai ke, containing a sensor for the presence of metal in the vases, a pulse angle sensor about