JPH0585648A - Winder controlling device - Google Patents

Abstract

PURPOSE:To prevent fluctuation of tension caused by turret motion to act at the time of a change of winding in a winder for sheet material and the like. CONSTITUTION:A winder controlling device is provided with an angular velocity detector 13 for detecting angular velocity of turret rotation of a winder 1, a turret diameter setting unit 14 for setting a predetermined turret diameter, a wound diameter detecting circuit 8 for detecting a wound diameter on a winding shaft 3, a roll diameter setting unit 16 for setting a take-out roll diameter situated just this side of a winding turret and an interval setting unit 17 for setting an interval from the center of take-out roll to the center of the turret. The device is also provided with a tension compensating circuit 12 which receives such a wound diameter signal, angular velocity signal, turret diameter setting signal, take-out roll diameter setting signal and interval setting signal from the center of take-out roll to the center of turret and outputs a compensating value of the tension, and a winding shaft control circuit 6 which receives the compensating value from the tension compensating circuit 12 and the wound diameter signal from the wound diameter detecting circuit 8 to control the winder 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine control device for sheet materials and the like.

[0002]

2. Description of the Related Art Conventionally, in a control device for controlling the winding of a sheet material or the like by a biaxial turret type winding machine, the winding diameter of the winding machine is detected to correct the speed set value, and the winding is performed. The winder is controlled so that the shaft surface speed is constant. When the winding machine is rewound, the winding shaft is moved by the turret operation.

[0003]

However, since the conventional winding machine control device does not perform tension compensation for the movement of the winding shaft due to the turret operation at the time of rewinding of the winding machine, it winds up the sheet material or the like. The machine performs a turret operation during rewinding, and if the tension is unstable due to the mechanical pulling of the loop as the winding shaft moves, it adversely affects the quality of the product such as the sheet material and breaks the sheet. There was a problem of doing. It is an object of the present invention to provide a winding machine control device capable of preventing a tension variation caused by performing a turret operation at the time of rewinding with a winding machine for sheet material or the like.

[0004]

In order to achieve the above object, the present invention provides an angular velocity detector for detecting the angular velocity of turret rotation of a winder, and a turret diameter setting device for setting a predetermined turret diameter. , A winding diameter detection circuit for detecting the winding diameter, a roll diameter setting device for setting the take-up roll diameter immediately before the winding turret, and a distance setting device for setting the distance from the center of the take-up roll to the center of the turret,
A winding diameter signal from the winding diameter detection circuit, an angular velocity signal from the angular velocity detector, a setting signal from the turret diameter setting device, a setting signal from the roll diameter setting device of the take-up roll, and a turret from the center of the take-up roll. The tension compensating circuit that inputs the setting signal from the distance setter that sets the distance to the center and outputs the tension compensating value, the compensating value from this tension compensating circuit and the winding diameter signal from the winding diameter detecting circuit A winding shaft control circuit for inputting and controlling the winding machine.

[0005]

In the winding machine control device having such a structure,
In a winder for a sheet material, etc. that has a tension detector in the previous stage and moves the winding shaft by performing a turret operation for rewinding, the tension compensation circuit starts when the turret operation starts and the turret angular velocity of the winder changes. When the corresponding signal, turret diameter set value, take-up roll diameter set value, distance set value from the take-up roll center to the turret center, and the take-up shaft winding diameter are input, this turret compensation circuit uses them as the basis. By calculating the speed fluctuation amount from the loop length fluctuation amount that fluctuates when the winding shaft moves during operation, and applying a signal corresponding to the speed fluctuation amount obtained as a result to the winding shaft control system, Since the fluctuation in tension caused by the loop length due to the movement of the winding shaft is compensated, it is possible to perform a stable winding operation.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the construction of a winder controller according to the present invention. In FIG. 1, reference numeral 1 is a two-axis turret type winding machine. The winding machine 1 is driven by a winding shaft drive device 4 to wind a sheet material 2 and a winding shaft 3 of this type. Turret drive device 5 for turret movement
It has and.

A winding shaft control circuit 6 controls the rotation speed of the winding shaft drive device 4 to control the rotation speed of the winding shaft 3. The winding shaft control circuit 6 controls the rotation speed of the winding shaft 3. A deviation signal between the set value of the speed setter 7 for setting the rotation speed and the signal corresponding to the winding diameter output from the winding diameter detection circuit 8 for detecting the winding diameter of the winding shaft 3 is inputted, The surface speed of the winding shaft is controlled to be constant with respect to the set speed.

Further, reference numeral 9 is a tension control in which a deviation signal between a tension detection signal detected by a tension detector 10 provided in the traveling path of the sheet material 2 and a tension set value set in the tension setter 11 is inputted. In the circuit, the tension control circuit 9 rotates the winding shaft 3 in response to a deviation signal between the signal of the winding diameter detection circuit 8 output according to the tension of the sheet material 2 and the speed setting value of the speed setting device 7. A signal for correcting the number is output.

On the other hand, 12 is an output signal of a turret angular velocity detector 13 for detecting the turret speed of the turret driving device 5, which is a pulse oscillator, a turret diameter setting signal set in a turret diameter setting device 14, and a winding diameter detection. The output signal of the circuit 8, the setting signal of the roll diameter setting device 16 that sets the roll diameter of the take-up roll 15 immediately before the take-up turret, and the setting signal of the distance setting device 17 that sets the distance from the center of the take-up roll 15 to the center of the turret. Is a tension compensation circuit to which the
2 is a signal according to the turret angular velocity, a turret diameter setting signal, a signal according to the winding diameter of the winding shaft 3, a roll diameter setting signal for the take-up roll 15, and a distance setting signal from the center of the take-up roll 15 to the center of the turret. Originally, the variation amount of the loop length and the variation amount of the velocity due to the turret are calculated and added to the line velocity reference.
Further, reference numeral 18 is a switching circuit which is provided at the output stage of the tension compensation circuit 12 and is turned on and off when the turret operation is started. Next, the operation of the winding machine control device configured as described above will be described.

The tension compensating circuit 12 is disconnected from the line control system because the switching circuit 18 is in the open state during the normal winding operation, that is, when the turret operation is not performed. Therefore, at this time, the take-up shaft control circuit 6 has a signal obtained by correcting the speed set value set in the speed setter 7 according to the winding diameter output from the winding diameter detection circuit 8 and the tension control circuit 9 The output signal is added and input, and the tension of the winding shaft 3 of the winder 1 is controlled according to the tension set value set in the tension setter 11.

On the other hand, when the turret operation is started by the rewinding of the winder 1, the switching circuit 18 is closed by the operation command, and the tension compensating circuit 12 is put into the line control system.

When the tension compensating circuit 12 is turned on, the tension compensating circuit 12 outputs the output signal of the turret speed detector 13, the set value of the turret diameter setting device 14, the winding diameter signal of the winding diameter detecting circuit 8, and the take-up diameter. A setting signal from the roll diameter setting device 16 of the roll 15 and a distance setting device 17 for setting the distance from the center of the take-up roll 15 to the center of the turret.
Based on the setting signal from, the fluctuation amount of the loop length and the speed fluctuation amount by the turret are calculated, and the signal corresponding to the speed fluctuation amount is output to the line control system and added to the line speed reference. In this case, the fluctuation amount of the loop length and the speed fluctuation amount at the time of the turret by the tension compensation circuit 12 are obtained as follows. 2 and 3 show the distance relationship between the respective parts when the take-up roll moves by Δθ (rad) due to the rotation of the turret.

Here, d / 2 (m) is set by the take-up roll diameter setting device 16, and L (m) is taken-up roll 15
Distance setter 1 that sets the distance from the turret to the center of the turret
7, r (m) is set by the turret diameter setting device 14, and D / 2 (m) is detected by the winding diameter detection circuit 8.

When it is detected by the turret angular velocity detection circuit 13 that the take-up roll has moved at an angular velocity of ω (rad / sec) due to the rotation of the turret, the velocity fluctuation amount Δv
If (m / sec) is the loop length variation Δl (= l ₁ −l), Δv = Δl / t = Δl / (Δθ / ω) = (ω / Δθ) · Δl (m / sec). (1) Δl is geometrically obtained as follows from FIGS. 2 and 3. In FIG. 2, X ² = L ² + R ² -2LrC0S θ (2) l ² = X ² -{(D-d) / 2} ² (3) From the equations (2) and (3), l = [L ² + R ² -2LrC0S θ-{(D-d) / 2} ² ] ^1/2 (4) On the other hand, in FIG. 3, Y ² = L ² + R ² -2LrC0S (θ + Δθ) ... (5) l ₁ ² = Y ² -{(D-d) / 2} ² … (6) From equations (5) and (6)

L ₁ = [L ² + R ² -2LrC0S (θ + Δθ)-{(D-d) / 2} ² ] ^1/2 becomes (7). Therefore, the loop variation Δ due to turret rotation
l is Δl = l ₁ −l

= [L ² + R ² -2LrC0S (θ + Δθ)-{(D-d) / 2} ² ]
^{1 / 2-} [L ² + R ² -2LrC0S θ-{(D-d) / 2} ² ] ^1/2 (8) Therefore, the speed fluctuation amount Δv can be calculated from the equations (1) and (8) by Δv = (ω / Δθ) · Δl = [L ² + R ² -2LrC0S (θ + Δθ)-{(D-d) / 2} ² ] ^1/2 · (ω / Δθ)

-[L ² + R ² -2LrC0S θ-{(D-d) / 2} ² ] ^1/2 ・ (Ω / Δθ)… (9)

Therefore, the rotation speed of the winding shaft 3 is corrected by adding the signal corresponding to the speed fluctuation amount at the time of the turret obtained by the tension compensating circuit 12 to the line speed reference, so that it is stable. Rewinding operation becomes possible. When the turret operation is completed, the switching circuit 18 is opened and the tension compensation circuit 12 is disconnected from the line control system.

As described above, in this embodiment, the tension compensating circuit 12 compensates for the tension fluctuation caused by the fluctuation of the loop length during the turret, so that a stable rewinding operation can be performed.

By these operations, even if the loop length fluctuates due to the movement of the winding shaft 3, the sheet material 2
Since the rewinding operation can be performed without making the tension of the product unstable, it is possible to prevent the deterioration of the quality of the product caused by the unstable tension.

[0022]

As described above, according to the present invention, the tension compensating circuit is turned on at the time of the turret of the winding machine to compensate for the fluctuation amount of the loop length, so that the stable rewinding operation is performed. Therefore, it is possible to provide a winding machine control device capable of eliminating deterioration of product quality due to tension fluctuation.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a winding machine control device according to the present invention.

FIG. 2 is a diagram showing a distance relationship between respective parts when the turret is rotated.

FIG. 3 is a diagram showing a distance relationship of each part when the turret is rotated.

[Explanation of symbols]

1 ... Winding machine, 2 ... Sheet material, 3 ... Winding shaft, 4 ... Winding shaft driving device, 5 ... Turret driving device, 6 ... Winding shaft control circuit, 7 ... Speed setting device, 8 ... Winding diameter Detection circuit, 9 ... Tension control circuit, 10 ... Tension detector, 11 ... Tension setting device, 12 ...
Tension compensation circuit, 13 ... Turret angular velocity detector, 14 ...
Turret diameter setting device, 15 ... Take-up roll, 16 ... Take-up roll diameter setting device, 17 ... Distance setting device between take-up roll center and turret center, 18 ... Switching circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Hasegawa 1-62-5 Akabane Kita-ku, Tokyo Yamakawa Machinery Co., Ltd. Tokyo Technical Center (72) Inventor Yasuyuki Sakiyama 1-1-1 Shibaura, Minato-ku, Tokyo No. 1 in Toshiba Head Office

Claims (1)

[Claims] 1. An angular velocity detector for detecting an angular velocity of turret rotation of a winding machine, a turret diameter setting device for setting a predetermined turret diameter, a winding diameter detecting circuit for detecting a winding diameter, and a winding device. A roll diameter setting device that sets the take-up roll diameter immediately before the turret, a distance setting device that sets the distance from the center of the take-up roll to the center of the turret, a winding diameter signal from the winding diameter detection circuit, and the angular velocity detector. From the distance setting device for setting the distance from the center of the take-up roll to the center of the turret, the setting signal from the turret diameter setting device, the setting signal from the roll diameter setting device of the take-up roll, and the setting signal from the distance setting device. A tension compensation circuit for outputting a tension compensation value, a compensation value from the tension compensation circuit, and a winding diameter signal from the winding diameter detection circuit are input to the winding circuit. A winding machine control device comprising: a winding shaft control circuit for controlling the winding machine.