SU1091969A1 - Device for automatic rejection of rolled stock on transverse cutting line - Google Patents

Abstract

DEVICE FOR AUTOMATIC DISASSEMBLY OF A ROLL IN A CROSS-CUTTING LINE containing interconnected rolling quality control device, rolled displacement sensor, cut length presetter, logic circuit, two defect memory blocks, electronic key, as well as interconnected displaced displacement sensor, block maintenance of information about the quality of the cut blanks and the flow switch of the blanks, characterized in that, in order to increase the code of high-quality blanks, Trolling quality of all areas of the supplied rolling stock and more accurate determination of defect locations, it is equipped with movement sensors and carriage control positions, a position sensor for the car’s capture mechanism, a subtractive counter, a digital comparator with three response levels, a trigger and an additional defect memory block, and movement sensors rental and carriage kits and position sensors of all mechanisms are connected to a logic circuit, the outputs of which are connected to the inputs of a subtractive counter connected to a digital comparator With the base, the outputs of the first and second operation levels of the computer (L rator are connected to the trigger, and the third operation level to the logic circuit, the zero output of the trigger with sec is connected to the coaxial input of the electronic key, and the unit one to the readout memory of the additional defect memory, This is by: the latter is connected to the recording input of the first block of the defect pass through its output, and the reading inputs of the first and second defect memory blocks are connected to the sensor outputs from the position of the rolling pickup mechanism.

Description

one

The invention relates to a machine CONSTRUCTION, in particular to the design of equipment for pressure treatment

A device for automatic grading of rolled products in a cross-cutting line is known, comprising interconnected rolling quality control device, a rolling displacement sensor, a preset length cutter, a logic circuit, two defect memory blocks, an electronic key, as well as interconnected displacement transducer of cut-off blanks, a block of maintenance of information on the quality of the cut blanks and a flow switch of the С 1 3 blanks.

The disadvantages of the known devices are the low accuracy of determining the locations of rolling defects and the lack of quality control of all zones of the supplied steel, which reduces the yield of quality workpieces.

The purpose of the invention is to increase the yield of high quality 1x workpieces by end-25 9 and control the quality of all zones of the supplied steel and more accurately determine the places of the defect. The goal is achieved by the fact that the device for automatic grading of rolled products in the cross-cutting line contains interconnected rolling quality control device, a rolling displacement sensor, a preset length cutter, a logic circuit, two defect memory blocks, an electronic key, and also connected sequentially sensor. movement of cut billets, a block of information on the quality of cut billets and a billet flow switch, equipped with displacement transducers 1p-1 and a carriage control position, a floor sensor of the rolling pickup mechanism, a subtractive counter, a digital comparator with three trigger levels, m, and an additional block of pa mi defects, with the rental and carriage movement sensors and the position sensors of all mechanisms connected to a logic circuit whose outputs are connected to the inputs of the deducting counter Single connected to the digital comparator, the outputs of the first and second level comparator connected to said actuation trigger, and the third layer srabatshani - a logic circuit, zero output trigge.ra podso1091969

single to the switching input of the electronic key, and a single to the read input of the additional defect memory block, the latter with its output connected to the recording input of the first memory block. defects, and the reading inputs of the first and second defect memory blocks are connected to the sensor outputs mechanism for capturing rolled.

FIG. 1 shows a block diagram of the device; in fig. 2 - the principle of counting the length of the cut blanks and the location of the cutting tool; on

FIG. 3 is a plot of the number N in

subtractive counter for the work cycle.

The device contains a control

rolled quality device 1, sensor 2

of rolling 3, kinematically connected with pulling rollers 4, unit 5 of the cut length, connected to input of logic circuit 6, displacement sensor 7 and sensor 8 of the test position of the cutting tool carriage 10 of the cutting mechanism 11, pickup mechanism 12 position 12 with two outputs 14 and 15, the signals on which appear, respectively, at the moments of switching on and off of the capture 13, the first 16, the second 17 and the additional 18 defect memory blocks, subtracting the counter 19, whose counting input 20 and the binary inputs 21 are connected They are connected to the corresponding outputs of logic circuit 6, and the serial outputs 22 are connected to the inputs of digital comparator 23 with three operating levels, which in turn are connected by first level output 24 and second level output 25 to trigger 26, and third output level 27 - to the logic circuit 6, the electronic key 28, the sensor 29 for moving the blanks 30 after the cutting mechanism, kinematically associated with one of the rollers 31 of the roller table 32, the block 33 for maintaining information about the quality of the rolled section and the cutting mechanism Flow breakers 34, switching is performed yuischy severed blanks into sortable stream 35 or stream 36 defective metal. FIG. 2 trunnions I, II and III conditionally show the positions of the cutting tool along the axis of the unit during the acceleration of the carriage of the cutting mechanism at the moments of the last 3: I - in the initial position, II in the control position, III - at the moment of the start of the cut. In addition, in FIG. 2 shows the location of the control device 1 and shows: the distance from the axis of this device to the cutting tool when the carriage passes the control position L, the path traveled by the carriage from the control position to the beginning of the cut L, specified lengths of the cut billet 1 and front and rear length 1 Kondov blanks, the presence of defective kstoryh permissible not to control. For the proposed units, condition 1 a1 C L-f b is satisfied, which makes it possible to manage to maintain information about the rental defect by a logical circuit, subtracting counters and memory blocks of the defect. At the moment the carriage passes the test position, detected by the corresponding sensor, it is entered into the subtractive counting, taking into account the selected discreteness of the movement pulses of the car and the carriage d, the code of the number L and starting from the receipt of the carriage sensor impulses to the counter. This continues until the moment when the hook mechanism is activated and the cut begins. From this moment on, the pulse of the hog sensor is rolled to the counting input of the deducting counter. At the moment of decreasing the number in the counter to a value corresponding to the distance (L + 1.,), the signal of the first level of the digital comparator appears and the connection between the control device and the device stops. All defects recorded by this time relate to a rolled billet that will be formed with the next launch of the cutting mechanism. For the time of passage under the flaw detector of the section Ij + 1, the quality control of the latter is not carried out. With the passage under the defect of the rear boundary. the second level of the digital comparator is triggered and the connection between the control device and the device is restored. Some time after the triggering of the second level of the digital comparator, but before the beginning of the new cycle (i.e. before the command to start the cutting mechanism for the cut), the third level of chi .694 farah comparator and the arrival of pulses to the counting input reading the counter is terminated. At the same time, the scheme remains until the beginning of a new cycle. FIG. 3 shows a graph of the change in the number N in the subtractive counter during the work cycle. Bremen. from scratch. Discreteness of impulses d correspond; tp - carriage of the control position, the beginning of the cycle, entering the code of the number Ic into the counter, t - turning on the mechanism for capturing the car, starting the cut, stopping the arrival of the pulses of the carriage movement sensor and starting the pulses of the car movement sensor; t2 passing under the control device of the front edge of the end, triggering the first level of the digital comparator, disconnecting the control device from the device, transferring information about defects to the first memory block; t is the passage under the control device of the rear border of the end of Ip, the operation of the second level of the digital comparator, the restoration of the communication channel of the control device with the device; t. - actuation of the third level of the digital comparator, stopping the arrival of pulses at the counting input of the deducting counter; t - the beginning of a new cycle. The device operates in an image and manner. . Information about the poor condition of the rental 3 from the output of the device 1 via the electronic key 28 is recorded in the additional defect memory block 18, then at the time of the first level 24 of the digital key to the device 23 is copied to the first defect memory block 16, from where it is switched on when the gripper 13 is turned on in the second block 17 of the memory of the defect, and in m the switch-off time of the capture is in the block 33 to maintain information about the quality of the cut blanks 30. As the cut billets for rolling along the roll table 32 advance, their quality information is moved in the block 33 from the entrance to the exit. At the moment of approaching the switch 34, the blanks are sorted into two streams: conditional ones are sent to high-quality flow 35, and substandard ones are sent to soTOKj 36 of rejected metal. At the time the carriage 9 passes the test position, detected by sensor 8, into subtracting counter 19 through logic 6, the digit length Jj of the cut piece is entered from the sensor input 21 from the sensor 5, and the carriage moving sensor 7 pulses start to arrive at the counting input 20 of the counter. From the moment the gripping mechanism 13, which is fixed at the output 14 of the sensor 12, is turned on, the counters input 20 of the subtractive counter 19 begins to receive the pulses of the movement 2 sensor of rolling 3, and the crime of the pulses of the sensor 7 stops. As the pulses arrive at the input 2 of the counter, it is recorded that its number in it continuously decreases. When the number. Recorded in the counter, will reduce, taking into account the discreteness d of the pulses of sensors 2 and 7 to jsj - -1, which corresponds to the entry into the control zone of the device 1 section (Ij pc (see Fig. 2 and 3), at the output 24 of the first level of the comparator 23, a signal is triggered, by which the trigger 26 is transferred to the state, at 30 the electronic key 28 is closed, 1 9 and the information on the defect recorded in the additional memory block 18, if any, is copied to the first defect memory block 16. when the second level of the comparator is triggered, the key 28 remains closed, and the connection of the device 1 with the memory unit 1B is interrupted. At the moment when the number in the counter decreases to the value Nj ::, the output 25 of the second level of the comparator appears a signal that triggers 26 to the zero state, and the key 28 is opened again to pass information from device 1 to memory block 18. With further reduction of the number in counter 19 to a value NJ slightly lower than N, but before the signal from sensor 8 about the beginning of a new cycle arrives, at output 27 of the third level the comparator responds signal that results Is the cessation of the arrival of pulses at the input of the counter 19. The efficiency of using ycTi, of the solution, is caused by increasing the output of high-quality workpieces during the processing of rolled products on the cross-cutting lines.

Claims (1)

DEVICE FOR AUTOMATICALLY DISASSEMBLE OF RENT IN A CROSS CUT LINE, containing interconnected rolled quality control device, rolled movement sensor, cutter length cutter, logic circuit, two defect memory blocks, electronic key, as well as connected in series • motion sensor of cut billets, a unit for tracking information on the quality of cut billets and a switch for the flow of billets, characterized in that, in order to increase the yield of high-quality billets by monitoring the quality of all areas of the supplied rental and a more accurate determination of the places of the defect, it is equipped with displacement and reference position sensors of the carriage, a position sensor of the pick-up mechanism of the rental, a subtracting counter, a digital comparator with three levels of operation, a trigger and an additional defect memory unit, and the sensors of movement of the rental and carriages > and the position sensors of all mechanisms are connected to a logic circuit whose outputs are connected to the inputs of a subtracting counter connected to a digital comparator, the outputs are not the first and second levels of operation of the comparator are connected to the trigger, and the third level of response is connected to the logic circuit, the zero output of the trigger is connected to the switching input of the electronic key, and the single is connected to the reading input of the additional defect memory unit, while the last is connected to the recording input of the first by its output the defect memory unit, and the reading inputs of the first and second defect memory units are connected to the outputs of the position sensor of the rental capture mechanism. SU ..,. 1991969> 1 109