SU906883A1 - Apparatus for regulating band material tension - Google Patents

Description

one

The invention relates to the production of rolled materials, in particular the textile industry.

A device for adjusting the tension of a ribbon material during winding is known, which contains a tension sensor through an adder electrically connected to the regulator, a tension adjuster and a driving motor.

This device measures the tension of the material in the winding process, converts the received signal and influences the drive motor according to the law determined by the correction unit 1.

However, a sufficient control quality by this device cannot be achieved since the winding density is not taken into account.

The purpose of the invention is to increase the quality of the tension control by stabilizing the density of the material being wound, regardless of its thickness.

This goal is achieved due to the fact that the known device has a roll radius sensor and a sensor mounted on the shaft.

revolutions, radius increment determination unit, the inputs of which are connected to the outputs of the sensors of roll radius and revolutions, the first and second integrators and an additional adder, while the output

5 of the radius increment determination unit is connected to the input of the first integrator, and the second output of the coil radius sensor and the output of the first integrator are connected via an additional adder to the input

(j of the second integrator, the output of which is connected to the tension adjuster.

The principle of operation of this device is based on the fact that during the tensioning process of the winding, the tension of the material being wound and the roll radius are measured. The increment of the radius per roll roll determines the thickness of the material at the periphery of the roll, and the sum of the measured thicknesses calculates the calculated radius of the roll corresponding to the uniform winding density of all its layers, i.e.

20 there was no effect of increasing the density towards the center of the coil from the effect of compressing the upper layers on the lower layers. According to the obtained integral of the difference between the measured and calculated radii, the setting of the unit for specifying the tension of the winding material changes.

The drawing shows a functional diagram of the proposed device.

A wound bobbin driven by an electric motor 1 connected to a power amplifier 2, whose input through an adder 3 is connected to the output of a tension sensor 4 and a tension setting unit 5, is wound material 6 into a roll 7.

In the process of winding using a roll radius meter 8, a roll radius sensor 9, the full winding radius is continuously measured, and a radius increment determination unit 10 connected by one input to a roll radius meter 8 and another with a pulse turn sensor 11 roll-a, the increment of the radius per turn of the winding is calculated, i.e. the thickness of the material to be wound in each upper layer of the roll.

The output of the radius increment determination unit 10 is connected to the input of the integrator 12, the output of which yields a coil radius corresponding to a uniform winding density. The output of the integrator 12 and 9 of the actual roll radius is connected via the mmator 13 to the input of another integrator 14 connected by its -BbiJSBaQM with the unit 4 of the tension task.

In the winding process, a signal is generated at the output of the sensor 9 of the roll radius, respectively. the corresponding radius value, taking into account the real increase in density in the lower layers of the coil, and at the output of the integrator 12, the calculated radius values corresponding to the uniform winding density, i.e. in the absence of compaction of the lower layers of the roll. The error signal supplied to the input of the second integrator 14 and from its output to

The input of the tension setting unit 5 adjusts the desired tension so that the winding density is uniform.

The proposed device allows a given optimum density of material to be wound into a roll, which reduces the internal tension of the material in the roll and eliminates the possibility of its structural distortions, which ultimately leads to an improvement in product quality.

Claims (1)

Invention Formula A device for adjusting the tension of a tape material containing a tension sensor through an adder electrically connected to the controller, a tension adjuster and a driving motor, characterized in that, in order to improve the quality of tension control by stabilizing the density of the material to be wound regardless of its thickness It has a coil radius sensor and a speed sensor mounted on the shaft of the driving motor, a radius increment detection unit, the inputs of which are connected to the sensor outputs. coil radius and speed, the first and second integrators and an additional adder, the output of the radius increment determination unit connected to the input of the first integrator, and the second output of the coil radius sensor and the output of the first integrator connected to the input of the second integrator to setter tension. Sources of information taken into account in the examination 1. USSR Copyright Certificate № 467022, cl. B65, H 23/20, 1973.