JPS5964462A - Tension controller for winder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a speed control circuit for an electric drive device for a winding machine, and an arithmetic circuit for determining a value proportional to the diameter of the winding roll from the moving speed of the material to be wound and the rotational speed of the winding roll. This relates to a tension control device for a winding machine.

This type of tension control device is described in, for example;
-trial Electronic” September 1968 issue, pages 350-354.

For example, in an electric crusher used for textile winding equipment, several foils, wire drawing, etc., the tension can be adjusted by superimposing a tension control measurement circuit on the speed regulator of the shaft drive. It is already known that it can be kept constant. In that case, the actual tension i'1α can be determined, for example, by means of a roller or controlled by means of a pressure sensor (see above-mentioned document).

Furthermore, it is already known to keep the tension in the winder indirectly constant by keeping the power applied to the winder electric drive 4 constant. In that case, the actual power f
In a DC machine, the 1 current can be obtained from the product of the induced electromotive force and the armature current. Further, the required power target value is proportional to the product of the tension of the citrus winder and the moving speed (see, for example, German Patent No. 205,701 (see German Patent No. 205,701).

SUMMARY OF THE INVENTION An object of the present invention is to provide an indirect tension control device with a simple configuration, in which a rotational flux control circuit can be well adapted to a changing take-up roll diameter.

This purpose is achieved by the present invention: a) In the main control circuit of the take-up roll and the drive device, a quantity proportional to the moving speed of the material to be wound is set as a target value, and an amount proportional to the take-up roll diameter and the take-up roll rotation speed is set as an actual value. b) The main control circuit is further superimposed with a correction control circuit that operates slowly compared to the main control circuit, and this correction control circuit has a target value that is adjusted to the take-up roll diameter. The river that is proportional to the llT ability is the actual value of the winding roll, furthermore, the 1 pupil □tθ]
``C1 happiness'' is achieved by adding 71 balls in proportion to the amount of the ``Trek''.

In this way, the desired tension can be pre-applied to the material to be wound by means of an adjustable roller which is proportional to the winding roll. This applies not only to DC drives, but also to AC sled drives.

Next, the present invention will be explained in more detail with reference to the drawings.

A DC motor 2 is used to drive the take-up roll 3.
t, the DC motor 2 is supplied with power from the AC power supply system via the controllable rectifier 1. A material to be wound 4 (') arriving at a predetermined speed v8 from a vIJ machine (not shown) is wound onto a winding roll 3 in a winding machine.

In that case, the tension previously applied to the one-skin material 4 must be maintained during the winding process.

Controllable rectifier 10 control unit 6 is controlled by a current regulator 7 with PI characteristics. The actual value i applied to the current regulator 7, detected on the alternating current side, lt, is a measure of the armature current and, in the case of a constant magnetic flux, also a measure of the torque of the motor 2. Target value 1 of current regulator 7
8 is a speed control circuit including a speed regulator 8 (
A is supplied from the main control circuit).

Taste, ■ Eye 1'V of regulator 8 (value v8)
kVs, which is proportional to the moving speed of L1, is used.If this quantity v8 is 1ν, then the speed recorder TIL machine 5, which is operated by the timer 4, is used. With the actual values V and ■-, l, which is proportional to the product of the rotational speed 1] and the diameter 1) of the winding head 3, is used. These quantities take the required circumferential speed v3 and the actual circumferential speed v1 vs. V,''S.

Furthermore, a correction including 9 correction regulators (1, 11 circuits are provided, the correction regulator 9 is input to the speed regulator 8 J1) to obtain the desired tension jJ. The supplementary IF is 'a:4eZ). The correction regulator 9 is given an electric current (T proportional to the electric current 2's torque [T in this case, proportional to the electric current 1 (Q −P ′tif) as an actual value, and adjusts the winding value as a target value M8. The roll diameter 1) should be set with an amount k・1 off L that is proportional to the adjustable pulse. The positive 1i111 Wei 1 circuit operates relatively slowly compared to the rotation speed control circuit a).

A value V proportional to the product of the take-up roll rotation speed 1) and the take-up roll diameter 1).
, integral k J2, and multiplication 1.゛: A control loop 14 consisting of vertical correction and tangent of J11 is provided). The second input signal of the multiplier 11 corresponding to the rotational speed nVc of the take-up roll 3 is a generator for speed t1 connected to the electric motor 2]
Supplied from 6 Jtro. Control h11 loop] The signal n-D generated at the output end of 4 is the input end of the 11 loop, Zuna i-) Jj, j, ! ＋、、Quality 1.1 乍;! tj +
! Connect the conductor 17 to the input side of the dowel 13 and hide it.
% breakage transfer: - ko (degrees V, compared to l). This control loop always makes the difference at the input of the jump amplified signal 13 zero. By doing this, in the output month 1'14 of control loop 1 = 1, the product 1 of the rotational speed 11 and the take-up roll diameter
]・The value corresponding to D will be ox.

θ], this value is the desired value! ! This is because the moving speed of the winding roll 3 corresponds to the circumferential speed (/CiJ) of the winding roll 3.

By controlling the circumferential speed using the product 11・D or Vs K, the input end of the rotational speed regulator ] -10 by diameter, so as not to be stuck.

Since the multiplier 1 forms the product 11.Dn, and 1 and 11 are manually entered into one input terminal, the other input of the summator E? The leaf that enters i + J must be proportional to the winding roll diameter 1-) VC and θ). Therefore, the voltage generated between the wire 412 and the hanger 1J and θ) is the take-up roll diameter D
It is used as a 1'1 way for 1, and it is I. Therefore, by the Boan/Yo 7 notation 41d connected thereto, the target 1 for the correction adjuster 9 is M, .
The supplementary IL target value relative to the take-up roll diameter j) is
Be able to form D. The value l (is a measure for the desired tension target value. It is assumed that the tension should be varied depending on the roll diameter.) (- is the potentiometer)
) Before or after σ) During the circuit, a function generator (not shown) can be used to change the IJi force in relation to the roll diameter. Desa'
Ru.

The present invention is based on j, +t trade, JL, take-up roll rotating bed 113: and five-loss "7-rule radius, actual value of roundness calculated from) circumferential speed control of the take-up roll. For example, torque control a
(Nil which superimposes the correction system i'111 circuit that operates as one circuit) Also referred to as "ir"j, two can be made.

[Brief explanation of the drawing]

The figure is a block diagram showing one embodiment of the present invention. 2... DC motor for driving the take-up roll, 3...
Winding roll, 4... Material to be wound, 7...
Current adjustment '15, 8... Speed regulator, 9...
Correction regulator, 14... Control loop, v8.
... Plugged coverage movement speed, vi... Proportional to the rotation speed of the curly roll - "filtration rate, l"... Winding roll rotation speed, D... Winding roll weight, 1... Electric ( Electric power: +Funshi C flow, M...Electric power (some torque, M8...Target value of correction control circuit.

Claims (1)

[Claims] ``a) A rotational speed control circuit for a take-up roll and a drive device; b) A method for determining a value proportional to the take-up roll diameter from the moving speed of the material to be wound and the take-up roll rotation speed. C) a tension control device for a winding machine having an arithmetic circuit; C) a main control circuit of the winding roll drive device; d) The main control circuit is equipped with a correction control circuit that operates slowly compared to the main control circuit, and this correction control circuit has a winding value as a target value. A tension control device for a winder, characterized in that a quantity adjustably proportional to the diameter of the take-up roll is derived, and a quantity proportional to the torque of the take-up roll 15X moving device is derived from the actual value. 2. In the apparatus according to claim 1, the number proportional to the product of the take-up roll rotation speed and the take-up roll diameter is determined in another control r+il loop by the product of the take-up roll rotation speed and the take-up roll rotation speed. 5C can be obtained from the condition that the difference between the value and the value proportional to the product of the take-up roll diameter is always zero.
A tension control device for a winding machine, characterized in that the tension is τ. 3) In the device according to claim 1 or 2, the take-up roll diameter calculated in a separate control loop is used to form a target value of a correction control circuit proportional to the take-up roll diameter. qFeatured winder tension control device. 4) In the apparatus according to any one of claims 1 to 3, a cascade connection circuit of an amplifier, an integrator, and a multiplier is provided, and the output of this cascade connection circuit is connected to the material to be wound. 8 input terminal C of the jump amplifier with a quantity proportional to the dynamic speed.
(In addition, the second input history of J: ll-riya: J
An amount proportional to the rotation speed of the take-up roll is added to 1'ii, so that an amount proportional to the product of the output of the multiplier j''j1614:, the take-up roll diameter and the take-up roll rotation; A tension control device for a winding machine, characterized in that: A tension control device for a winding machine, characterized in that the tension control device can be taken out from a potentiometer connected between the tension control device and the winding machine. In particular, a tension control device for a winding machine, characterized in that K is such that a quantity proportional to the armature current of the winding roll, drive, as an actual value, can be derived via a delay element.