SU1627609A1 - Automatic control system for dyeing process - Google Patents

Description

And (gain from carrying) (tegcoi industry, in particular, to the systems of automatic shading and dyeing of yarn in packages, and can be used in finishing plants for dyeing yarn in devices periodic K tn: - not working under the support, for example in wto / ta on x

The purpose of the invention is improving the accuracy of control

Fit 1 shows a functional diagram of the proposed system, Fig 2 shows a schematic diagram for switching on an input current driver, time simulator of the autoclave, a simulator of the inertial properties of the autoclave, and a current output simulator, fit 3 schematic diagram of a temperature simulator

The system of automatic control of the process of dyeing packages of yarn in the apparatus (autoclave) contains the loader 1 of the programs of the nature of the shadow by the sequence of operation and temperature conditions, unit 2 of comparison, unit 3 of the selection of actuating mechanisms, switches 4 and 5. sensor (i temperature dyeing solution, tempera- ture mode indicator 7, form 8 input current; simulator — inertial properties of an autoclave; shaper 10

output current, simulator II time natrava dye solution and simulator 12 temperature ry

The first program of program 1 is connected to the first input b of the current 2 of the comparison, the second input of which is connected to the common output A of the switch 5 The output of the comparison unit 2 is connected to the output A of switching 4, the output B of which is connected to the input 7 of the indicator 7 and output B with the second input of the autoclave actuators selection unit 3, the first input of which is connected to the second output of the setting device 1, and the outputs are connected to the actuating mechanisms 13 of the autoclave 14 The indicator 7 output is switched to the 8 input current, which is i-inertial properties of the auto tava (t and form 10 of the output current of the regiment tukhen to TV output K switch 5 By the same you NOTA from the keys of the output i of the simulator 12 temperature Output And the switch 5 soynep with the output of the sensor on the temperature of the regional Id of the inertial simulator input of avgoktav properties is connected to a torus-type outlet of the II heating time

Unit 2 Comparison to the t car is an operational read), early

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oh j

oh oh

CD

melting in comparator mode. Unit 3 selection of actuators 3 is made in the form of a relay logic block containing a pear relay type MKU48. Switches 4 and o are toggle-type switches MT1. The temperature sensor 6 is made in the form of a thermal resistance Pi 100 with a normalizing converter. Indicator 7 is used to display simulated states of the autoclave Heating or Cooling, i.e. to control the deviation of the simulated temperature from a predetermined value, and is made in the form of a single indicator of the type AL307BM. Shaper 8 input gok (Fig. 1 and 2) is formed by transistors 15 and 16 of type KT3102B, transistor 17 of type KT3107B, capacitors -18 and 19 of type K10 -17-1a and resistors 20-25 of type MLT 0.5. The simulator 9 inertial properties of the autoclave (Fig. 1 and 2) is a capacitor type K50-16. The output current driver 10 (Fig. 1 and 2) is formed by a KT3102B type transistor 26, a KT3107B type transistor 27, a K50 -16 type capacitor 28. resistors 29-31 MLA-0.5 0.5 and diodes 32-34 of type KD521A. Simulator 11 heating time

(fng

made as variable

resistance 11.1 of type SIZ I6A with resistor 11.2 of type MLT.

The temperature simulator 12 (FIGS. 1 and 3) is formed by a variable resistance 35 of the HPS-16A hypo, a trimming resistance 36 of the type SP5 22B, and a microammeter 37 of the type M592.

The system works as follows.

When contacts A and B of switch 4 are closed and contacts L and B of switch 5 are closed, the control commands of the sensor 1 of the programs from its second output are controlled through the block 3 of the selection of actuators by the actuators 13 of the autoclave 14 in a predetermined process sequence and the reference signal the temperature obtained from the dye temperature setpoint device 1 is compared by comparison unit 2 with the signal received from the dye temperature sensor 6.

As a result, the comparator unit 2 generates a signal controlling the actuator that increases or decreases the temperature of the dye solution, for example, by heating it with steam or cooling water with a coil located in the cavity of the autoclave (not shown).

Depending on the technological procedure and the applied dyeing technology, the control commands are issued by the setting unit 1 of the programs according to the appropriate nickname of the dyeing unit.

For the system and its adaptation to the operating conditions of the autoclave 14 close the contacts A and B of switches 4 and 5. On the simulator 12, the temperature of the device

five

0

five

0

five

0

five

0

five

pour the temperature value corresponding to the controlled degree of the cyclogram.

In this initial state (Fig. 2), the capacitor 9 is discharged, the indicator 7 is extinguished, and the transistors 26 and 27 of the output current driver 10 are closed, which corresponds to the temperature of the dye solution in the autoclave 14 simulated by variable resistance 35 (Fig. 3). At the same time, in the input current driver 8 (Fig. 2), the transistor 15 is closed, and the transistors 16 and 17 are open, which allows the capacitor 9 to charge. The charge time of the capacitor 9 is proportional to the current through the transistor 17. As the capacitor 9 is charged, transistors 26 and 27 open and the current at the output of the driver 10 of the output current through the diode 34 begins to flow. An increase in the flowing current corresponds to a decrease in resistance 35, which corresponds to a decrease in the simulated temperature of the autoclave 14.

Such a decrease in the simulated temperature triggers the comparison unit 2, as a result of which the indicator 7 lights up, the transistor 15 opens, the transistors 16 and 17 close, and the capacitor

9 starts discharging through a variable resistance I. As the capacitor discharge decreases 9, transistors 26 and 27 gradually close and the current flowing through diode 37 at the driver output

The 10 output current decreases, which corresponds to an increase in the simulated temperature in the autoclave 14. After the predetermined simulated temperature is reached, the analog signal at the output of the comparator unit 2 disappears, indicator 7 goes out and the system returns to its original state. Thus, indicator 7 lights up when the simulated temperature increases. autoclave and does not burn when it is reduced.

With the help of variable resistance 11.1, the simulated heating time of the autoclave can be changed during the adjustment process.

Claims (1)

Invention Formula The system of automatic control of the dyeing process, mainly packages of yarn, containing a temperature sensor of the dye solution in the apparatus, equipped with actuators, an actuator selection unit, the first input associated with the first output of the set program for controlling the sequence of operations and the temperature regime of dyeing, the second output of which is connected the second input of the comparison unit, characterized in that, in order to increase the control accuracy, it contains switches, successively United Temperature Indicator Shaper input current, simulator of the inertial properties of the apparatus and the output current driver, as well as simulators of temperature and dye heating time, the outputs of which are combined with the outputs of the formers, respectively, of the output and input currents, with the sensor outputs and The simulator of the dye paci temperature is connected via the first switch to the second input of the comparator unit, the output connected via the second switch to the input of the temperature mode indicator and the second input of the actuator selection unit FIG. one Fig.Z Fig 1