SU1431993A1 - Apparatus for stabilizing the speed of winding of continuous material - Google Patents

Abstract

This invention relates to winding means. The purpose of the invention is to simplify the design. The law of controlling the speed of the winding drum 12 is determined by vRg / R ejection, where Rj and Rj are the radii of the winding drum without material and with material, respectively; U pos and dispatch time corresponding to the initial winding speed; U y p is the voltage control of the speed of the electric motor 11. The inputs of the multiplication unit 2 from the outputs of the setpoint generator 1 of the initial winding radius and the sensor 13 of the linear velocity of the material receive signals Z (, R5-N / S and Vcall where S is the material thickness; N is a multiple of the number of layers in the winding radius. The increment of the winding radius is measured by a pulse tachogenerator 8, a driver for 5 pulses and a pulse counter 6. The output signal of the adder 4, proportional to the current winding radius, is fed to the input of the division unit 3, the output signal is Uy p which desirably changes the angular speed of the drum 12. zp 1, f-ly. 1 yl. (A

Description

with

This invention relates to winding means.

The purpose of the invention is to simplify the construction. The drawing shows a block diagram of the device.

The initial winder radius 1 is connected to the input of multiplication unit 2, the output of which is connected to one input of division 3 unit and another input of adder A connected to output. The pulse shaper 5 is connected through pulse counter 6 to another input of adder 4. associated with the output of the sensor 1.

The output of the dividing unit 3 is connected to the input of the winding drum speed controlling unit 7. A sensor 8 of the number of layers of the wound material (pulse tachogenerator) is connected to the input of the former 5. The positions 9–12 denote the material, the reducer, the electric motor and the winding drum, respectively. The unit 13 of the linear velocity of the material is connected to the input of the multiplication unit 2,

The device works as follows.

Vaakon controlling the speed of the winding drum is defined by

 :

and,

 vflp

R

where Rg and R. are respectively radii

winding drum 12

;and

Over ft

and

vnp

without material and with mate-. rial;

- control voltage corresponding to the initial angular velocity Wj and determining the linear velocity of the material5

-power control of motor speed 11.

For the implementation of this dependence, the setting device 1 (programmable storage unit) outputs to the inputs of the multiplication unit 2 and the adder 4 a digital sigV RO with

Zj, where S is a mass of material, 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 velocity during winding and is determined by the resolution of the tachogenerator 8, which performs the function of the sensor

Q 5

0 5

d

0

five

the number of layers of winding. When the number of pulses from the tachogenerator 8 corresponds to the total number of layers of wound material. The pulses from the output of the tachogenerator 8 are fed to the input of the imager 5, which forms the pulses of the required level and shape, and then to the counter 6. The output signal

cash (R is the current increment of the winding drum 12 radius with the material) is fed to the input of the adder 4 o From the output of the adder 4 sig „„ „RoN + 4RjN RjN

cash equal to Z

B s

where is R; - the current value of the winding radius. Enters the corresponding input of the unit 3 divisions.

I

In addition to the signal Z, the input from the multiplication unit 2 is a signal from the output of the setpoint 13, wounded by Ujj ,. From the UsofiRoN yes block 2 signal - arrives

ABOUT

on one input of block 3 to another input

Riin

which signal comes from the output of the adder 4. The output signal of the division unit 3 determines the speed of the electric motor 11 and is equal to U „

RO

 The signal Ujnp allows the angular velocity of rotation of the winding drum to vary in such a manner that the linear velocity of the material is constant.

Claims (2)

1. A device for stabilizing the winding speed of a lengthy material, comprising a winding radius increment meter, an adder, the first input of which is connected to the output of the initial winding radius generator, and the output is connected to the first input of the dividing unit, downstream to the input of the winding drum speed control unit, a material linear speed setting device and a multiplier unit, characterized in that, in order to simplify the construction, the winding radius increment gauge is implemented as a series-connected sensor the number of layers wound materiala5 pulse shaper and pulse counter, which outputs an initial setting devices ra3U31993 winding speed and linear velocity 2. A device according to claim 1, of a tl of material through a multiplier unit connecting in that the yen generator is connected to the second input of the dividing unit, the initial winding radius and the output of the pulse counter is connected in the form of a programmable memory-saving adder .go block.