SU585226A1 - Device for program-hardening of long articles with variable taper - Google Patents

Description

taper has a lifting mechanism; 1, which is controlled by a block of 2 sensors of a discrete change in the taper, programs "1st block 3 ,. specifies a certain speed; peryflor 4 speeds, impulse transducer 5 displacement, two-input; reversing counter 6, program block 7 hours, converter 8 code analogue.

After the product is completely lowered into the water tank, the first sensor of the discrete taper change sensor block 2 receives a signal to turn on the power for the entire system. The 2 sensor block represents, for example, HM dual sensors located on the disk circumference and working generated when the diamagnetic needle connected with the lifting mechanism is inserted into the slot of the sensors.

The signal from the first sensor of block 2 is fed to the input of software block 3, which outputs the appropriate reference signal to the input of speed controller 4. The output signals from the speed controller 4 of the torus are fed to the speed control of the lifting mechanism 1. The speed control can occur, for example, by changing; resistances in the motor's rotor circuit, i.e. The signals from controller 4 are fed to the control of thyristors, which turn off the rotor C / counter, which corresponds to a higher speed.

When the product is lifted, the diamagnetic arrow enters the slot of the next sensor of block 2, the sensor is triggered and the signal goes to software block 3i as a result, the reference signal to regulator 4 changes, the firing angle of the thyristors switching the rotor resistance changes, and the speed changes. Thus, a change occurs; speed when lifting the product.

The location of the sensors in block 2 corresponds to the places where the taper changes.

A pulse displacement sensor 5 is rigidly connected with the lifting mechanism 1, the number of pulses of which is proportional to the angle of rotation of the lifting mechanism. The price of the pulse determines the required accuracy of the movement of the product. These pulses are fed to One and the E inputs of the reversible counter 6, and to the other input are received pulses from frequency program block 7, whose frequency changes when a switching signal is received from block 2.

From the output of counter b, CHf is removed equal to the difference of two frequencies. This signal is converted into a code-analog converter 8 in the converter-t and is fed to one of the inputs of the 4th speed controller, correcting the speed of movement of the lifting device. If the frequency of pulses in the counter with 5 is equal to the frequency of the pulses from the program block of frequency 7, then the difference signal is O and: the correction is not / transmitted. If, however, the frequency of the emulsions from sensor 5, entering the counter, is less than the frequency of the reference, then a correction signal appears through converter 8 which enters regulator 4 / which increases the speed of the lifting device. If the frequency from sensor 5 is greater than the reference frequency, then the correction signal decreases the speed of the lifting device.

The proposed device for prog. frame hardening of long products with variable taper has an additional correction circuit, which allows to withstand the required accuracy of lifting the product from water, and, consequently, increases the reliability of the device and improves the quality of hardening products.

Claims (1)

1. Application 1 2164917/02, cl. C 21 D 11/00, 08.28.75, on which a positive decision was made to issue an Ashtor certificate.