SU1623934A1 - Device for control of material rewinding - Google Patents

Abstract

The invention relates to winding devices. The purpose of the invention is the expansion of technological capabilities. Before starting the rewinding, the initial number of turns in the layer, the initial number of layers of material on the drum 4, and the required linear velocity of the material are set by the setting units 8, 10 and 15. A switch 11 sets the desired rewinding direction (winding and unwinding). In the process of rewinding, the drum rotation frequency sensor 6 by means of adders 7 and 9 of the number of turns in the layer and the number of layers of material on the drum affects the software frequency adjuster 12 of the drum rotation, which through the adder 13 and the drum speed controller 3 provides the required linear speed of material rewinding. 1 silt

Description

WITH

WITH

The invention relates to winding devices.

The chain of invention is the expansion of technological capabilities.

The drawing shows the block diagram of the device.

The electric motor 1 is connected to the gearbox 2 by its shaft. The electric motor input is connected to the output of the drum speed regulator 3 4 The gear 2 is kinematically connected to the input of the material pickup mechanism 5. A drum rotation frequency sensor 6 is mounted on the shaft of the drum 4, the output of which is connected to one input of the adder 7 of the number of turns in the layers, another input of the initial number of turns in the layer connected to the output of the setpoint 8. The output of the adder 7 is connected to the information input of the adder 9, the number of layers of material, the control inputs of which are connected to the outputs of the setter 10 of the initial number of layers of material on the drum and the switch 11 of the material rewind direction, and the output of the switch 11 is connected to the corresponding input of the adder 7. The output of the adder 9 through a software setting device 12 is connected to one input of the adder 13, the other input of which is connected to the output of the drum rotation frequency sensor 6 via a converter 14. The inputs of the controller 3 speed connected to the outputs of the switch 11, the adder 13 and the unit 15 of the linear velocity of the material.

The device works as follows.

Before rewinding, the initial state of the material on the drum 4 is known. Thus, at the beginning of the winding, the drum 4 is free from rewindable material. At the outputs of the setting units 8 and 10, zero signals are set. Both setters 8 and 10, in the simplest case, are sets of toggle switches that allow the binary code to set the initial values of layers and turns in a layer at its outputs.

The rewinder direction setting unit 11, for example, a two-position toggle switch, is set to the desired position: winding or unwinding. The output of the setting device 15 sets a signal proportional to the required rewinding speed. When power is applied to the device in the adder 7 (the adder is made, for example, in the form of a reversible counter), the initial number of turns of material in the upper layer is set. Similarly, in the adder 9, the initial number of layers of material on the drum 4 will be recorded. In the process of rewinding, at each revolution of the drum 4, the sensor 6 generates a pulse at its output. In the adder

7, the sensor pulses are summed with the initial value of the turns in the layer up to the filling of the adder (counter) 7, which occurs when the number of turns set at the installation input of the adder 7 is reached. The last pulse fixes the change in the number of layers per unit. resets the adder 7 to read from the zero of the next layer of winding. During unwinding, the control of the adder 7 is performed at the subtracting input, and the counter operates from the set initial value to zero.

The adder 9 counts the actual number of layers of material on the drum 4. The count is generated from the initial value of the number of layers by summing (winding) or subtracting (when unwinding) pulses from the output of adder 7. The output signal of adder 9 is the binary code of the number of layers. Software zadztchik 12 converts the input code into cm-one on one of the N outputs, where N p (n is the maximum possible number of layers of material winding on the drum 4) Output keys (not shown) from the sensor 12 commutes a chain voltage divider (not shown) of the adder 13. The input signal of the adder 13 is an analog signal proportional to the frequency of rotation of the electric motor 1. The signal about the frequency of rotation of the electric motor from the output of the sensor 6 is generated by the converter 14, for example, by converting Frequency - voltage.

In the process of rewinding, the output keys of the setpoint 12 switch the resistors (not shown) of the chain splitter of the adder 13 so that, depending on the number of 4 layers of material wound on the drum, the level of the signal transmitted from the output of the converter 14 to the input of the speed controller 3 changes the regulator 3 controls the rotational speed of the electric motor 1 as follows. that the actual value of the linear speed of rewinding is equal to the set one (output of the setting device 15)

When the rewinding direction is changed, adders 7 and 9 work on subtraction. In this case, as each winding layer passes through, the code for the number of layers at the output of adder 9 is reduced by one and the linear rewinding speed is still stabilized.

Claims (1)

Invention Formula A device for controlling the rewinding of a lengthy material, comprising a material rewinding direction switch, the first output connected to the first control input of the adder 5 16239346 the number of layers of material of the second control — which is kinematically connected with the twisting entrance of which is connected with the output of a predetermined input and with a mechanism for the layout of the material, The chick of the initial number of layers of material is distinguished by the fact that. with the aim of drum, and the output through the software for the expansion of technological capabilities of the frequency sensor of the rotation of the drum is 5 stey, it is equipped with a setpoint source not with the first input of the adder, the second number of turns in the layer and the adder number the input associated with the first output of the date turns in the layer, while the output of the setter ticks of the rotational speed of the drum, and a regular number of turns in the layer, the first puller of the drum speed, the inputs of which are the input of the rewind direction switch connected respectively to the outputs for-10 of the material and the second output of the frequency sensor sensor of the linear velocity of the material and rotation of the drum through the adder number the adder and to the second output of the switch-turns in the layer are connected to the information rewinding direction of the material, and the input of the adder of the number of layers of the material source is connected with the electric motor, the valal. 15