SU1148829A1 - Strip material tension regulator - Google Patents

Abstract

1. A DEVICE FOR REGULATING THE TENSION OF THE TAPE MATERIAL, mainly when it is wound on a mandrel containing a material tension sensor, a material tension setting device connected to the first input of the reference element, whose entry through the control unit is connected to an electric motor and worn kinematically connected to the input an actuator for changing the tension of the material, and a sensor of rotational speed of the mandrel, characterized in that, in order to improve the control accuracy by taking into account the change in the wrap angle of the material The folding roller, it has a non-linear functional converter and a synchronizer connected in series, a controlled frequency generator and a correction unit, while the outputs of the material tension sensor and the correction unit are connected to the second input of the reference element and the output of the rotation speed sensor The controls are connected to the synchronization input (L torus).

Description

2. The device according to claim 1, which is based on the fact that the synchronizer consists of a series-included integrator and counter, a reference element, a set number of rotation of the mandrel, and a meter of the laying time on the mandrel of the material coil, while the outputs the counter and setpoint speed of the mandrel through the element of comparison and time meter laying on the mandrel of a single coil of material is connected to the input of a controlled, frequency generator, and the output of the sensor frequency of rotation of the mandrel is connected to

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3, .The device according to Clause. Cl. ICA; about the fact that the adjustment of the Ny block consists of a key and a block

the memory, and the output of the controlled frequency generator is connected to the control inputs of the key and the memory block, and the output of the memory block is connected to the information input of the key, the output connected to the input of the nonlinear function converter.

4, The device according to claim 1, about the fact that neshleyny

the functional converter consists of a power foam and a number raising power unit, wherein the key output of the correction block is connected to the first input power of the multiplier through the power number raising block, the second input of which is connected to the output of the material tension sensor, and the output is connected to the second input of the comparison element .

The invention relates to control systems for technological processes, in particular, to devices for regulating the tension of a tape material in the manufacture of articles made of composite materials with a method of control,

The aim of the invention is to increase the control accuracy by taking into account the change in the angle of girth of the material:

FIG. 1 shows a block diagram of the device of the device; FIG. 2 is a block diagram of a synchro niggle; FIG. 3 is a block diagram of the correction block $ in FIG. 4 shows the construction of a non-linear functional converter,

The device consists of an actuator 1 for changing the tension of the material, connected with the shaft of the electric motor 2. Material tension sensor 3 is connected to the first input of the nonlinear functional converter 4, the output of the comparison element 5 connected to the first input the input of the control unit 6 of the electric motor 2, the unit 7 for tensioning the material, to the second input of the element 5 of the comparison. The sensor 8 for the rotational speed of the mandrel through the synchronizer 9, the controlled frequency generator 10 and the correction unit 1 1 is connected to the second input of the converter 4

Synchronizer 9 consists of sequentially included integrator 12 and counter 13, the output of the comparison element 14 connected to one input, the other input connected to the output of the setting device 15, package speed, and the output connected with the input of one turn of material on the mandrel. ,

The correction unit t1 consists of the key 17, the memory unit 18 having the control unit 19, the Block 18 is connected to one input of the key 17, the other input of which is connected to the output generator 10,

The non-linear functional transducer 4 consists of a multiplier 20 and a power exponent block 21. The output of the key 17 is connected via block 21 to the first input of the multiplier 20, the second input of which is connected to the output of the material tension sensor 3, and the output is connected to the first input of the comparison element 5.

The device works as follows.

Previously, before the product is manufactured, the winding program is calculated. One of the results of such a calculation is to obtain 1 ascent of the angles of coverage eij with a tape of a stacking roller. This array is stored in block 11 (more specifically, in block 18 of memory). The winding program consists of frames, each of which has its own angle value, in an array, the uniformity of which varies within 100,200.

When stacking the next coil from the sensor 3, tension on the input of the functional nonlinear converter D receives a signal proportional to the measured value of the tension. At the same time, the controlled generator 10 with a frequency inversely proportional to the laying time of the coil and determined by the synchronizer 9, connects the block 11 to the functional nonlinear converter 4,

In the functional nonlinear converter 4, the signal from block 11 is raised to the power of 6, where i is the coefficient of friction of the tape against the surface of the tape conductors; tx is the corresponding taper angle of the guide roller stacker. This signal in multiplier 20 is multiplied by a signal proportional to the measured, high value of the tension by sensor 3. The received signal, corrected

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taking into account the influence of the spawn rate on a cell in a 5 cp unit in 1, it is compared with the signal, the nponcipiOn the required level and the input from the tension sensor 7. The error signal g of the output of the comparison element 5 is given. to the input of the motor control unit 6 2. The possibility of controlling the value of the tension is due to the presence of a functional connection between the torque developed by the electric motor and the tension with which the winding takes place.

The synchronizer works the following way.

Comparison element 14 compares the rotational speed of the mandrel, determined by means of Dachn 8, with the mandrel rotation of the mandrel corresponding to the laying of one turn and incoming 1F1 from the setting unit 15. In the case of the difference of these signals in the comparison element 14, a signal is generated that is fed to the meter 16 one turn. Depending on the magnitude of this time interval, a code is applied to the controlled generator 10, which corresponds to the frequency of the generator 10 command pulses. The functional purpose of this part of the control system is to provide you with synchronization

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The data from the block 11 correspond to the actual angles of the tape coverage angles of the guide roller stacker.

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Claims (4)

1. DEVICE FOR REGULATING TENSION OF TAPE MATERIAL, mainly when it is wound on a mandrel containing a material tension sensor, a material tension adjuster connected to the first input of the comparison element, the output of which through the control unit is connected to an electric motor and a shaft kinematically connected to the input of the actuator changes in the tension of the material, and a speed sensor of the mandrel, characterized in that, in order to increase the accuracy of regulation by taking into account changes in the angle of the material It has a non-linear functional converter and a synchronizer connected in series, a controlled frequency generator and a correction unit, while the outputs of the material tension sensor and the correction unit are connected via a non-linear functional converter to the second input of the comparison element, and the output of the speed sensor is - 5 equalizers connected to the input of the synchronizer. and 488297 2. The device according to π. 1, t and μι a g e c. The fact that the synchronizer consists of a series-connected integrator and counter, a comparison element, a mandrel speed setter and a meter for laying time on a mandrel of a material coil, while the outputs of a counter and a setter speed meter through a comparison element and a laying time meter for a mandrel of one coil of material connected to the input of the managed. frequency generator, and the output of the speed sensor of the mandrel is connected to the input of the integrator. 3, The device according to claim 1, it is stipulated by the fact that the correction block consists of a key and a memory block, while the output of the controlled frequency generator is connected to the control inputs of the key and the memory block, and the output of the block memory is connected to the information input of the key, the output connected to the input of a nonlinear functional ion converter. 4, The device according to p. ^ Characterized in that the non-linear functional converter consists of a multiplier and a power exponentiation block, while the output of the correction block key is connected to the first input of the multiplier through the power exponentiation unit, the second input of which is connected to the output of the tension sensor material, and the output is connected to the second input of the comparison element.