SU734148A1 - Control device for vertical drawing of sheet glass - Google Patents

Description

In addition, the accuracy and functional reliability of the known devices is insufficient, as if a tape height appears in the zone of control or when long lines appear, sudden changes in the output signal of the top-end sensor are possible, which are unreliable, but the system will compensate for them, which reduces its accuracy work and can lead to accidental cliffs

The purpose of the invention is to improve the accuracy of control.

This is achieved by the fact that the proposed device is equipped with a rotation speed sensor of transponders, a rotation angle sensor converter, a rotation angle adjuster, a calculation unit, a comparison element, a calculation unit, an analyzer and an output unit, the glass thickness sensor being connected to the first input through a thickness converter. thickness regulator, the second input of which is connected to the thickness gauge, the third input of the thickness regulator is connected to the first output of the output unit, the code of the thickness regulator is connected the first input of the stabilized drive of the working machine, kinematically and electrically connected with the rotation speed sensor of the transporting rolls, the output of the speed sensor of the transporting rolls is connected to the first input of the calculating unit, the output of the temperature converter is connected to the first output of the calculation unit, the output of which is connected to the first input of the element comparison, the second of which is connected to the first output of the computing unit, the second output of which is connected to the first input of the analyzer, the output of which The first output of the output unit, the second output of which is connected to the first output of the refrigerator turn mechanism, the third output of the output eye is connected to the output of the unit for turning angle, the output of which is connected to the second input of the refrigerator turn mechanism, which is kinematically and electrically connected to the angle sensor, the output of which is connected to the output of the utape turn sensor converter, the output of which is connected to the second inputs of the analyzer and the calculating unit, and the output is transformed. Thickness bodies are connected to the second input of the calculating unit and to the third pass

comparison element, the output of which is connected to the second output of the output unit. The drawing shows the device. It includes a glass thickness sensor 1, a thickness converter 2, a thickness controller 3, a thickness setting device 4, a calculation unit 5, a glass mass temperature sensor 6, a temperature converter 7, a calculation unit 8, a stabilized drive 9 of a working machine, a speed sensor 10. 11, the mechanism 12 of the rotation of the refrigerator 13, the adjuster 14 ULA turn, the angle sensor 15,

The angle sensor transducer 16, the reference element 17, the output unit 18 and the analyzer 19.

The device works as follows.

When deviations of thickness from the given unit 4, which are detected in element 17, appear, and there are no deviations of the performance factor, the value of which is shown in the block

5, the element 17 outputs to the output unit 18 a switch-on signal of the thickness regulator 3 compensating for this deviation by varying the rotational speed of the stabilized actuator 9, which is then kept constant by the feedback signal from the speed sensor 10.

If element 17 detects a deviation of the value of the performance factor from the set one, then through output block 18, the setpoint 14 sends a change signal of the set angle of rotation of the coolers 13 and the turn on signal of the actuator of the turn mechanism 12, which turns the coolers until the unbalance between the setpoint 14 and sensor signals disappears IS, thus compensating for the deviation of the performance factor from the task.

The task of the value of the performance factor is given by block 8, in which its optimal value is calculated in accordance with the values of the signals of the transducers

7 and 16, and taking into account the requirements for product quality and composition of raw materials.

In the absence of thickness deviations in block 19, the current value of the performance factor is filtered.

Claims (1)

By the time of the occurrence of deviations in thickness, based on a comparison of the filtered value of the performance factor L, the current shows sharp spikes, which correspond to unreliable values of the signal of the thickness OT-ript of the generator 2, since the productivity factor of the process changes very slowly. In this case Signals are turned off at the outputs of the unit 18 associated with the thickness regulator 3 and the drive mechanism 12 of the rotation of the refrigerators 13, thus preventing accidental breaks in the produced glass ribbon, The accuracy of maintaining process parameters and reliability of the device as a whole is enlarged. Formula of the Invention A device for controlling the process of vertical drawing of sheet glass, comprising a glass thickness sensor, a thickness transducer, a thickness gauge, a thickness regulator, a glass melt temperature sensor, a stabilized actuator. machines, kinematically connected with transporting rollers, a fridge rotation turnaround method and a hod "1nick rotation angle sensor, and the input The temperature sender is connected to a glass temperature sensor, characterized in that, in order to improve the control accuracy, it is equipped with a rotation speed sensor of the transporting rolls, a rotation angle sensor converter, a rotation angle adjuster, a calculator, a reference element, a calculation unit, an analyzer and a transceiver unit The glass thickness sensor is connected through the thickness converter to the first input of the thickness regulator, the second input of which is connected to the thickness gauge, the third input of the regulator 73 86 The thickness is connected to the first output of the output unit, the output of the thickness regulator is connected to the first input of a stabilized drive of the working machine, kinematically and electrically connected to the rotation speed sensor of the transporting rolls, the output speed sensor of the transporting rolls is connected to the first input of the unit calculated, the output of the temperature converter is connected to the first input of the calculation block, the output of which is connected to the first input of the comparison element, the second input of which is connected to the first output of the block is calculated and, the second output of which is connected to the first input of the analyzer, vj (the stroke of which is connected to the first input of the output unit, the second output is connected to the first drive of the refrigerator turning mechanism, the third output of the output unit is connected to the input of the rotation angle adjuster, the output of which is connected to the second an input of the rotation mechanism of the refrigerators, which is kinematically electrically connected to the rotation angle sensor, whose output is connected to the input of the angle angle converter, the output of which is connected to the second inputs of the analyzer ora and the calculating unit, and the output of the thickness converter is connected to the second input of the calculating unit and to the third input of the comparison element, the output of which is connected to the second input of the output unit, Information sources taken into account during the examination 1. Glass and ceramics, 1965, t. 16, No. 4, p. 89-93, 2, USSR Author's Certificate .N9 4О0531, Cl, C 03 B 15 / O2, 1971 (prototype).