SU1134630A1 - Device for controlling levelling capacity of fixed reel - Google Patents

Abstract

1. A DEVICE FOR MONITORING THE LEVEL OF ABILITY OF A STANDABLE SCREENER, containing an adjustable delay unit, the first input of which is connected to the output of the computing unit, the second input - to the output of the sensor of the linear density of the product installed at the input of the stationary reel, and the output to the first input of the subtractor,. the second input is connected to the output of the linear density sensor of the product installed at the output of the stationary reel, and the recorder, characterized in that in order to increase the accuracy of control by taking into account the speed and twist of the product, it has product speed sensors installed at the input and output fixed motion, a product twist sensor mounted at the input of the fixed reel, and a setter of the geometric parameters of the fixed reel, the outputs of which are connected to the corresponding inputs of a numerical number about the unit, and the output of the subtractor is connected to the recorder. 2. The apparatus of claim 1, wherein the computing unit consists of adders and division units, wherein the outputs of the product speed sensors are connected to the first through the first adder. the input of the first dividing unit, the second input of which is connected to the first output of the setter of geometric parameters of the fixed reel, outputs of the product twist sensor, sensor (L ka speed of the product set at the input of the stationary reel, and the second output of the setter of geometric parameters of the stationary reel through the second the division unit is connected to the first input of the second adder; the second input of the first division unit connected to the output, the third input - with the output of the third CO 4 CU division unit, and the output - with the first input b adjustable delay time, the output of the probe speed sensor installed at the output of the stationary reel and the third output of the setpoint generator of the geometric parameters of the stationary wave are connected to the corresponding inputs of the third division unit.

Description

The invention relates to the textile industry, namely to devices for controlling the leveling ability of fixed reels during the production of fiber products (ribbons, rovings) from natural and chemical fibers. A device for controlling the leveling ability of a fixed reel containing an adjustable delay unit, the first input / of which is connected, is known. to the output of the computing unit, the second input to the output of the sensor of the linear density of the product installed at the input of the fixed reel, and the output to the transducer the second input of the calculator, the second input associated with the output of the linear density sensor of the product installed at the output of the fixed reel, and the recorder) 1 A disadvantage of the known device is the low accuracy of the control of the leveling ability of the fixed reel because the speed and Lruth of the fiber product are not taken into account, as a result Whereby the comparison of the parameter characteristics in the computing unit is made in different parts of the product. The purpose of the invention is to improve the accuracy of control by taking into account the product's twist speed. The goal is achieved by the fact that the device for controlling the extrusion rate of the fixed reel contains an adjustable delay unit, the first input of which is connected to the output of the computing unit, the second input to the output of the linear protector sensor of the product installed on the input of the fixed reel, and the output to the first the input is subtracted, the second input of the product connected to the output of the linear density sensor installed at the output of the fixed reel, and the recorder has product speed sensors installed with Respectively, the input and output of the fixed reel, the product twist pump installed at the input of the stationary reel, and the indicator of the geometric parameters of the non-moving video reel, the outputs of which are connected to the corresponding inputs of the computing unit, and the output of the reader is connected to the recorder The calculation unit consists of summators and chapters , while the outputs of the product speed sensors through the first adder are connected to the first input of the first, dividing unit, the second input of which is connected to the first input of the setter Parameters of the fixed reel, outputs of the product twist sensor, product speed sensor installed at the input of the fixed reel, and the second output of the setter of geometric parameters of the fixed reel through the second dividing unit are connected to the first input of the second adder, the second input connected to the output of the first dividing unit, the third input - with the output of the third dividing unit, and the output with the first input of the adjustable delay unit, with the output of the product speed sensor installed at the output of the fixed reel a, and a third output setpoint geometric parameters stationary reel connected to the respective inputs of the third block dividing. The drawing shows a structural diagram of the proposed device. Fibrous product 1 is dragged through stationary reel 3 with the help of discharge rollers 3. The output of the sensor 4 of the linear density of the product installed at the input of the stationary reel is connected to the input of an adjustable delay unit 5, the control input of which is connected to the code of the computational unit 6. The output of adjustable 5 the delay is connected to the first input of the subtractor 7, the second input of which is connected to the output of the sensor 8 of the linear density of the product installed at the output of the fixed reel. The output of the subtractor 7 is connected to the recorder 9. The sensors 10 and 11 of the product speed, installed respectively at the input and output of the fixed reel 3, are connected to the input 1 "w of the adder 12 of the computational unit 6. The output of the adder 12 is connected to the first input of the division unit 13, the second input of which connected to the first output of the setter 14 geometric parameters of the fixed reel-. The outputs of the sensor 15 twist the product and the sensor 10 of the speed of the product installed at the input of the stationary reel, and the second output of the setpoint generator 14 of the geometric parameters of the stationary reel are connected to the inputs of the dividing unit 16, the output of which is connected to the adder 174 The second input of the adder 1 7 is connected to the output of the unit 13 divisions, and the third input - with the output of the division unit 18. The inputs of the division unit 18 are connected respectively to the output of the sensor 11 of the product speed, installed at the output of the stationary reel, and to the third output of the setting unit 14 x parameters stationary reel. The output of the adder 17 is connected to the utvallia input of the block 5 adjustable delay

The device works as follows.

Sensors A and 8 of the linear density of the product 1. (for example, photoelectric) perceive a change in the thickness of the fibrous product along its length. The signal from the sensor 8 is fed to the second input of the reader 7, the first input of which receives a signal from the sensor A, previously delayed in block 5 of the adjustable delay at the time

 w / cb bw / wb 2ukw cc

no where 6

- the distance from the entry point and the fibrous product to the reel to the point of measuring the linear density in the incoming branch of the product;

E

% g is the distance from the point where the product exits from the reel to the point where the linear density is measured in the net product;

BC is the length of the geodesic line of the reel (space curve along which the fibrous product moves in the reel);

L - the angle of the product turns

Hg is the linear velocity of the product in its oncoming branch (at the entrance of the reel) i

Vjg is the linear velocity of the fibrous product in its output branch (at the exit of the reel).

From the output of the subtractor 7, the signal enters the recorder 9. The opNfHpoBaHH signal, which controls the delay time of the signal from Sensor 4, is deciphered as follows.

From the sensors 10 and 11 of the linear velocity of the product, the signals arrive at the inputs of the adders 12. Structurally, the sensors 10 and 11 can be performed, for example, using tachogenerators, whose shafts are rigidly connected to the output and feed rollers (not shown). At the output of adder 12, a signal appears that is proportional to the sum of the speeds of the incoming and outgoing branches of product 1. This signal is fed to the dividing unit 13, to another input of which a constant voltage is supplied from the setpoint generator 14 of geometric parameters of the fixed reel proportional to the length of the fixed geodesic line reel. The inputs of dividing unit 16 receive a signal from sensor 10, a constant voltage from setpoint 14, proportional to the distance from the fiber product entry point to reel to sensor 4, and the signal from sensor 15 of product twist 1. To input: dividing unit 18 the signal from sensor 11, the constant voltage from setpoint 14, is proportional to the distance from the fiber product's exit point from the reel to sensor 8. Subsequently, signals from the outputs of the dividing units 13, 16 and 18 are fed to the separate inputs of the second adder 17. As a result, adder 17 per control s input of adjustable delay unit 5 enters a signal proportional to the delay time: defined by the expression (1).

The economic effect from the use of the proposed device is determined by the high accuracy of controlling the leveling ability of the stationary glass during the production of fiber products (tapes, HmQii) from natural and chemical fibers.

Claims (2)

1. DEVICE FOR CONTROL OF THE LEVELING CAPABILITY OF THE FIXED READS, containing an adjustable delay unit, the first input of which is connected to the output of the computing unit, the second input to the output of the linear density sensor of the product installed at the input of the fixed reel, and the output to the first input of the subtractor ,, the second input associated with the output of the sensor; • linear density of the product installed on the • stationary output. ! finch, and the registrar, characterized in that, with the purpose. to improve the accuracy of control by taking into account the speed and twist of the product, it has product • speed sensors installed respectively at the input and output of the fixed reel, a product twist sensor installed at the input of the fixed reel, and a geometrical parameter adjuster for the fixed reel, the outputs of which are connected to corresponding inputs of the computing unit, and the output of the subtractor is connected to the registrar. 2. The device pop. 1, characterized in that the computing unit consists of adders and division units, while the outputs of the product speed sensors through the first adder are connected to the first. the input of the first division unit, the second input of which is connected to the first output of the geometrical parameters setter of the fixed reel, outputs of the product twist sensor, product speed sensor installed at the input of the fixed reel, and. the second output of the setter of geometrical parameters of the fixed fin through the second division block is connected to the first input of the second adder, the second input connected to the output of the first division block, the third input to the output of the third division block, and the output to the first input of the adjustable delay unit, the output of the product speed sensor installed at the output of the fixed reel, and the third output of the setter of geometric parameters of the fixed reel are connected to the corresponding ones! the inputs of the third block division. SU _n „1134630