JPH11100155A - Speed controller of winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a speed controller of a winding machine in which a speed feedback signal in winding speed control has an inherent speed feedback signal and a speed feedback signal which compensates it and which judges the change- over of these signals based on a winding length. SOLUTION: A center drive type winding machine is provided with a change- over device 17 which transmits a control command to a converter for drive 3 which controls a rotation speed of a drive machine 2 of the winding machine to integrate a signal of a speed setting device 10 by a speed integrator 16 and calculate a theoretical feed length. Moreover, a speed feedback signal is integrated to calculate a feed length measured actually. When differences between the theoretical feed length and the feed length measured actually are compared by the change-over of both, it is possible to judge whether a winding speed feedback signal is unstable or not. Consequently, a signal on a compensation circuit side is changed over to use as a speed feedback signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center drive type winder, and more particularly, to a winding speed control in which a speed feedback signal has an original speed feedback signal and a speed feedback signal for compensating the same. And a speed control device for a winder that performs the determination criterion based on the winding length.

[0002]

2. Description of the Related Art In a center drive type winder, when a line is accelerated or decelerated, a take-up speed feedback signal indicates that a take-up material and a material speed detecting roll are separated from each other due to a slip or the like, which is accurate due to a slip or the like. Measurement may not be possible. FIG. 2 is a configuration diagram using a conventional priority circuit that compares the magnitudes of signals explaining such a state. In FIG. 2, 1 is a material wound around a winding shaft of a winding machine, 2 is a driving machine of the winding machine, 3 is a converter for driving, 4
5 is a material speed detecting roll, 6 is a speed detector, 7 is a compensation signal, 8 is a priority circuit, 9 is a speed calculator, and 10 is a winding speed setting device. The driving device 2 of the winding machine transmits a control signal to the driving converter 3 by calculating the speed feedback signal detected by the speed detector 6 and the signal of the speed setting device 10. Control is being performed.

[0003]

However, in the device having such a configuration, even if the signal to be compensated is wrong, the priority circuit works for comparing only the magnitude of the speed feedback signal, and the original function is not obtained. Was not fulfilled in some cases. The present invention has been made in view of the above points, and an object of the present invention is to provide a speed control device of a winder that solves these drawbacks.

[0004]

Means for achieving the object is to provide a center drive type winder in which a control command is sent to a drive converter for controlling the rotational speed of a drive of the winder. A switch for transmitting, and one input of the switch includes an outer shape detector for detecting the outer shape of the material wound on the winding shaft by the winder, and rotation of the winding shaft of the winder. A rotational speed detector for detecting a speed, a computing device for calculating a winding speed from both of them, and a first speed for inputting an output signal of the computing device and a signal from a speed setting device for setting the winding speed And an arithmetic unit.

On the other side of the switch, a delivery detector for detecting the rotation speed of the roll for delivering the material, an integration counter for integrating the delivery length of the material by an output signal of the delivery detector, and the speed setting device A speed integrator for calculating the feed length of the unit signal per unit time, a comparator / determiner for inputting an output signal of the speed integrator and an output signal of the integrating counter, and a speed feedback signal of the sending detector. A second speed calculator for calculating a signal of the speed setter, wherein the switching between the output signal of the first speed calculator and the speed feedback signal as the output signal of the second speed calculator is performed by the comparison judgment. The output signal from the container is used as a criterion for determining the winding length.

That is, the signal of the speed setting device is integrated by the speed integrator, and the theoretical feed length is calculated. The speed feedback signal is also integrated to calculate the actually measured feed length. The operation can be determined by comparing the difference between the theoretical feed length and the actually measured feed length to determine whether the winding speed feedback signal is unstable. Thereby, the signal on the compensation circuit side is switched to be used as the speed feedback signal.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of the present invention. In the drawing, components having the same reference numerals as those in FIG. 2 are portions having the same configuration and function. In FIG. 1, reference numeral 11 denotes an outer shape detector of the winding machine, 12 denotes a rotation speed detector of the driving machine 2, 13 denotes a calculator for calculating a winding speed (π × exterior × rotation speed of the driving machine), and 14 denotes a computing unit. A material feed length integration counter, 15 is a comparator and a comparator, 16 is a speed integrator, 17 is a switch for switching based on the result of the comparator, 61 is a delivery detector, 91 is a first speed calculator, and 92 is a second speed calculator. Speed calculator.

In a center drive type winding machine,
Drive converter 3 for controlling the rotation speed of drive 2 of the winding machine
A switch 17 for transmitting a control command to the input device, and one input 17a of the switch 17 has an outer shape detector 11 for detecting the outer shape of the material 1 wound around the winding shaft by the winding machine; A rotation speed detector 12 for detecting the rotation speed of the winding shaft of the winding machine, a calculator 13 for calculating the winding speed from both of them, and an output signal of the calculator 13 and a speed setting for setting the winding speed. Vessel 1
And a first speed calculator 91 for inputting a signal from 0.

The other input 17b of the switch 17 has a feed detector 61 for detecting the rotation speed of the roll for feeding the material 4, and a feed signal for the material 4 based on an output signal of the feed detector 61.
, A speed integrator 16 for calculating the feed length of the signal of the speed setting device 10 per unit time, an output signal of the speed integrator 16 and the Comparison judgment unit 15 for inputting an output signal
And a second speed calculator 92 for calculating the speed feedback signal of the sending detector 61 and the signal of the speed setter 10. The output signal of the first speed calculator 91 and the second speed calculator 92 The switching to the speed feedback signal as the output signal is performed using the output signal from the comparison / determination unit 15 as a criterion for the winding length.

That is, the signal of the speed setting device 10 is integrated by the speed integrator 16 to calculate the theoretical feed length. The speed feedback signal is also integrated to calculate the actually measured feed length. The theoretical feed length is calculated by, for example, the feed length per unit time by the speed integrator 16, and the actually measured feed length is measured at the same time using the integrating counter 14 and the difference is obtained. Is the criterion.

[0011]

As described above, according to the present invention, the speed of the material may not always be detected stably due to the mechanical attachment of the speed detecting roll and the characteristics of the material, and the roll slips. In some cases, such a situation is solved, and stable winding can be performed. Also,
Even if the material completely runs out, the take-up machine does not run away, and is extremely useful in practical use.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a configuration diagram showing an example of the related art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 material wound on winding shaft 2 drive device of winding machine 3 drive converter 4 material being sent out 5 material speed detection roll 6 speed detector 7 compensation signal 8 priority circuit 9 speed calculator 10 winding 11 Speed setting device 11 Winder outer shape detector 12 Rotation speed detector 13 Computing unit 14 Integration counter 15 Comparison judgment unit 16 Speed integrator 17 Switching unit 17a One input of switching unit 17b The other input of switching unit 17 Input 61 Sending detector 91 First speed calculator 92 Second speed calculator

Claims (1)

[Claims] In a center drive type winder, a switch for transmitting a control command to a drive converter for controlling the rotation speed of a drive of the winder is provided, and one input of the switch is An outer shape detector that detects the outer shape of the material wound on the winding shaft by the winding machine, a rotation speed detector that detects the rotation speed of the winding shaft of the winding machine, and a winding speed from both of them. And a first speed calculator for inputting an output signal of the calculator and a signal from a speed setting device for setting the winding speed, and the other of the switches includes the material A feed detector that detects the rotation speed of the roll that feeds the feed roll, an integration counter that integrates the feed length of the material based on the output signal of the feed detector, and a feed length per unit time that is a signal of the speed setting device. A speed integrator for calculating, an output signal of the speed integrator and the integration A comparison / determination unit that inputs an output signal of a counter, and a second speed calculator that calculates a speed feedback signal and a signal of a speed setting device of the sending detector, and an output signal of the first speed calculator. A speed control device for a winder, characterized in that switching to a speed feedback signal as an output signal of a second speed calculator is made based on the output signal from the comparison / determination unit as a criterion for a winding length.