SU1662915A1 - Device for stabilization of tensioning of long-sized material when its winding - Google Patents

Abstract

The invention relates to winding devices. The purpose of the invention is to improve the accuracy of the device. A device for stabilizing the tension of a lengthy material during winding allows one to calculate the tension, to carry out multiplication and division operations that are not related to the gear ratios of the mechanical links. Additionally, an adder, a divider, a multiplier, a unit for the initial radius of the material winding and a unit for material tensioning, interconnected with each other device elements, are introduced into the device. 1 il.

Description

This invention relates to winding means.

The aim of the invention is to improve the accuracy of the device.

The drawing shows a functional diagram of a device for stabilizing the tension of a lengthy material during winding.

The device contains an initial winding radius adjuster 1, an adder 2, a divider 3, a multiplier 4, a pulse shaper 5, a counter 6, a material tension control unit 7, a pulse rotational speed sensor 8, a drum 9 with a material to be wound 10, an electric motor 11c with a gear 12, Unit 13 tension of material. The control unit 7 comprises a comparison device 14, a controlled converter 15 and a current sensor 16.

A device for stabilizing the tension of a lengthy material during winding works as follows.

The law of moment control of the electric motor 11 of the winding drum 9 in order to stabilize the material tension is determined by the ratio

Uynp. i3ad u (1)

where RI and RO are the winding drum radii with and without material, respectively;

i3ad. - control voltage corresponding to the initial moment of the electric motor Mo and determining the tension of the material;

Oupr - motor torque control voltage.

To realize this dependence, unit 1 of the initial winding radius of the material supplies the first inputs of the adder 2 and divider 3, a digital signal

7 Ro-N Zog where-S - material thickness;

(L

WITH

oh oh go

ate

N is a multiple of the number of layers in the winding radius.

The choice of the number N is determined by the required accuracy of the stabilization of the material tension during winding and is determined based on the resolution of the pulse sensor 8, which functions as a sensor for the number of winding layers. When N-1, the number of pulses from sensor 8 corresponds to the total number of layers of wound material. The pulses from the output of the sensor 8 pulses are fed to the input of the imaging unit 5 pulses, forming pulses of the required level and shape, and then to the counter 6. Output signal- ARi-N

cash Zi -

where A R i is the current prira

the radius of the winding drum with the winding material 10, is fed to the output of the adder 2, From the output, the adder 2, a digital signal equal to

 . RoN + AR | -N RjN

Zo -) - Zi -g-, where R i is the current radius value, arrives at the first input of multiplier 4, The second input of multiplier 4 receives a signal from the output of the unit 13, tensioning the material, equal to 1) 3ad. With the output of the multiplier 4 signal equal to

izad-rl n

S

the divider 3 arrives at the second input, at the first input of which it enters

Ro-n

- from the set point output 1. Output signal

RI

The signal from the divider 3 Cucr and the RC is fed to the block 7 control tension 35

0

five

0

five

0

five

Claims (1)

of the material and then from it to the electric motor 11 and changes the torque of the electric motor 11 of the winding drum 9 accordingly. This signal changes the torque of the electric motor 11 of the winding drum 9 so that the tension of the winding material 10 is constant. Claims A device for stabilizing the tension of a lengthy material during winding, comprising a material tension control unit, a counter, a divider, a pulse shaper and a pulsed roll rotation speed sensor, the output of which is connected to the pulse shaper input, characterized in that, in order to improve the accuracy of the device, it includes the initial winding radius gauge, the material tension sensor, the multiplier and the adder, the first group of information inputs of which are connected to the meter outputs, the count The second input is connected to the output of the pulse former, the second group of information inputs of the adder and the control inputs of the divider are connected to the outputs of the setter of the initial winding radius, the outputs of the adder and outputs of the tensioner of the material are connected respectively to the first and second groups of information inputs of the multiplication, the output of which is connected to an information input divider, the output of which is connected to the information input of the material tension control unit.