JP4302549B2 - Unwinding and winding device - Google Patents

Description

  The present invention relates to an unwinding and winding device that calculates the winding diameter of a long material at an unwinding portion and a winding portion, and an unwinding and winding system using the unwinding and winding device.

  In a conventional winding device, as described in Patent Document 1, in a long material unwinding device that winds a long material unwound from an unwinding portion at a winding portion, A measure roll that rotates in contact with a long material that is unwound from the output frame and wound on the take-up frame of the take-up unit, and a movement of the long material that is sent from the output frame to the take-up frame as the measure roll rotates. A rotary encoder that generates a number of pulses corresponding to the amount, a detected part provided in either the unwinding part or the winding part, and the number of revolutions of the unwinding part or the winding part by detecting the detected part From the period detector that generates the number of pulses corresponding to the above, numerical setting means for setting the initial unwinding diameter and initial winding diameter, and the number of pulses corresponding to the amount of movement of the long material from the rotary encoder and the period detector Of the current unwinding diameter or current unwinding diameter depending on the number of pulses corresponding to the number of rotations And calculating means for calculating the other current diameter using one of the calculated current diameter and the initial unwinding diameter and initial winding diameter set by the numerical value setting means. It has an unwinding and winding device for a long material that is characterized.

  According to this unwinding / winding device, the long material unwound from the unwinding frame attached to the unwinding portion can be fed during the feeding operation of the long material wound around the winding frame attached to the winding portion. During starting work, the operator operates the numerical value setting means, sets the initial unwinding diameter and initial winding diameter in the numerical value setting means, and moves the long material sent from the unwinding frame to the winding frame. One of the present unwinding diameter or the present unwinding diameter is obtained from the number of pulses corresponding to the number of pulses corresponding to the number of rotations of the unwinding frame, and the obtained current diameter and the initial unwinding diameter and The other current diameter is calculated using the initial winding diameter.

According to this unwinding / winding device, when the initial unwinding diameter and the initial unwinding diameter are set by the numerical value setting means at the time of feeding the long material or at the starting work, the calculating means, for example, winds from the unwinding frame. The current unwinding diameter of the unwinding frame is obtained by proportional calculation of the number of pulses corresponding to the amount of movement of the long material sent to the frame and the number of pulses corresponding to the number of rotations of the unwinding frame, and the current calculation means is obtained. Since the present winding diameter is calculated using the unwinding diameter and the initial unwinding diameter and initial winding diameter, the number of sensors such as the measure roll, the rotary encoder, the detected part, and the period detector is small and simple. It is possible to provide an unwinding / winding device for a long material as a configuration.
JP-A-8-238523

  However, the conventional unwinding device is configured to detect the detected portion provided in either the unwinding portion or the winding portion in order to calculate the winding diameter, and to detect the detected portion. Since there is a need for a period detector that generates the number of pulses corresponding to the number of rotations of the take-up section and a large number of sensors are required, there is a problem that it is complicated.

  The present invention has been made to solve the above-described problems, and an unwinding / winding device that achieves a simple configuration by reducing the detected portion and the period detector, and unwinding using the unwinding device. An object is to provide a winding system.

  An unwinding / winding device according to a first aspect of the present invention is the unwinding / winding device for a long material in which the long material unwound from the unwinding portion is wound by the winding portion. A roller provided between the unwinding unit and the winding unit, and a roller provided between the unwinding unit and the winding unit. A movement amount detecting means for generating a position detection signal corresponding to a movement amount of the long material sent from the unwinding frame to the winding frame with rotation, an initial unwinding diameter of the unwinding frame, and the winding Numerical value setting means for setting an initial winding diameter of the frame, first calculation means for calculating a current unwinding diameter of the unwinding frame based on the position detection signal and the initial unwinding diameter, and the position detection And a second calculating means for calculating a current winding diameter of the winding frame based on a signal and the initial winding diameter. .

  The unwinding / winding system according to the second invention comprises an unwinding motor for rotating the unwinding frame, a winding motor for rotating the winding frame, and a roller motor for rotating the roller. It is characterized by.

  According to the first invention, there is an effect that it is possible to obtain an unwinding / winding device that achieves a simple configuration by reducing the detected portion and the period detector provided on the unwinding shaft side.

  According to the second invention, it is possible to obtain an unwinding and winding system using a winding diameter calculating device that achieves a simple configuration by reducing the detected parts and period detectors provided on the unwinding shaft side. There is an effect.

Embodiment 1.
An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of an unwinding / winding system according to an embodiment.
In FIG. 1, an unwinding / winding system 1 includes a pulley-like unwinding frame 10 provided at an unwinding section for unwinding a raw roll on which a long material 5 is wound, and an unrolled long material. A first dancer portion 20 that mechanically applies tension to 5, a speed roller 30 that applies a predetermined speed to the long material 5 taken out from the first dancer portion 20, and a length fed from the speed roller 30. A pulley-like winding provided in a winding part which takes up the second dancer part 40 for applying mechanical tension to the scale material 5 and the long material 5 taken out from the first dancer part 20 to make a product roll. A take-up frame 50 and a control device 100 that controls the take-out frame 10, the speed roller 30, and the take-up frame 50 and calculates the current winding diameter of the unwind frame 10 and the take-up frame 50 are provided.
The long material 5 includes a metal thin plate, a film made of synthetic resin, and the like.

The unwinding drive unit for driving the unwinding frame 10 and the unwinding drive unit for driving the unwinding frame 50 are connected to the rotation shaft of the unwinding motor 12. And an unwinding speed reducer 14 having a reduction ratio Gs whose output is coupled to the shaft of the unwinding frame 10.
The take-up drive unit has a take-up speed reducer 54 that has a reduction ratio Go that has an input coupled to the rotary shaft of the take-up motor 52 and an output coupled to the take-up shaft.
The speed roller driving unit has a roller motor 32 having one end coupled to the speed roller 30.

  The detection unit detects the rotation angle of the roller motor 32 and generates a position detection signal Ls, and also inputs the one rotation pulse P1 generated by the roller motor 32 every rotation to the control unit 100; A second current detection is performed by detecting the current of the unwinding motor 12 and detecting the current of the unwinding motor 52 and the unwinding motor 52 that inputs the first current detection signal Is1 to the control unit 100. And a winding current detector 56 for generating a signal Is2 and inputting the signal Is2 to the control unit 100.

  The control apparatus 100 takes in an input signal and sends an output signal to an interface (hereinafter referred to as I / F) 103 and a parameter setting unit 201 including a keyboard and the like, and an initial unwinding diameter Rs1 and a unwinding frame 50. The initial winding diameter Ro1 is set, and the current unwinding diameter Rsn is calculated based on the stored numerical value setting unit 105, the position detection signal, and the initial unwinding diameter Rs1 set by the numerical value setting unit 105. And a calculation unit 109 having a first calculation means and a second calculation means for calculating the current winding diameter Ron based on the position detection signal and the initial winding diameter Ro1 set by the numerical value setting unit 105. is doing.

  The driving unit includes an unwinding amplifier 112 that drives and controls the unwinding motor 12 based on a control signal from the control device 100, and a roller that drives the roller motor 32 based on a control signal from the control unit 100. And a winding amplifier 152 that drives and controls the winding motor 52 based on a control signal from the control unit 100.

In the unwinding and winding system 1 configured as described above, with reference to the model diagram of the unwinding and winding system shown in FIG. 1 shown in FIG. Based on this, the means for calculating the current winding diameter of the unwinding frame 10 and the winding frame 50 will be described.
<Calculation of current winding diameter>
Using the initial winding diameter Rs1 of the unwinding frame 10, the initial winding diameter Ro1 of the winding frame 50, and the thickness t of the long material 5 set by the parameter setting unit 201, the current unwinding diameter ( The diameter (Rsn) and the current winding diameter (diameter) Ron of the winding frame 50 are obtained by the following equation.
Rsn = Rs1-2t · Ns (1)
Ron = Ro1 + 2t · No (2)
Here, Ns: the accumulated rotational speed of the unwinding frame 10
N0: Cumulative rotational speed of the winding frame 50 The moving distance Ln of the long material 5 is a count obtained by integrating the position detection signal Ls of the encoder 34 and the number of rotation pulses P1 generated for each rotation of the roller motor 32. Based on the value Nm:
Ln = L1, Nm + Ls (3)
Here, L1: the amount of movement of the long material in one rotation of the speed roller 30 On the other hand, the amount of movement Lsn of the long material 5 with one rotation of the unwinding frame 10 is expressed by the following equation.
Lsn = π · Rsn (4)
The current winding diameter Rsn of the unwinding frame 10 is determined so that the amount of rotation Ns of the unwinding frame 10 is increased every time the moving amount Lsn of the long material 5 satisfies the above formula (4), that is, every time the unwinding frame 10 makes one rotation. Can be obtained from the above equation (1).
Moreover, the moving amount Lon of the long material 5 accompanying one rotation of the winding frame 50 is represented by the following equation.
Lon = π · Ron (5)
Similarly, the current winding diameter Ron of the winding frame 50 is set so that the moving amount Lon of the long material 5 reaches the above formula (5), that is, every time the winding frame 50 makes one rotation. By counting and increasing the rotation speed No, it can be obtained from the above equation (2).
<Long material tension control>
Further, when the reduction ratio Gs of the unwinding reduction gear 14 and the torque τms of the unwinding motor 12 are obtained as the tension FL of the long material 5, the following equation is obtained.
τms = Rsn / Gs / FL / 2 (6)
Similarly, when the reduction ratio Go of the winding reduction gear 54 and the torque τmo of the winding motor 52 are obtained as the tension FL of the long material 5 and converted into the winding shaft torque τo, the following equation is obtained.
τmo ＝ Ron ・ Go ・ FL / 2 (7)
Here, the torque τms of the unwinding motor 12 and the torque τmo of the winding motor 52 are detected based on the current detection signals Is1 and Is2 by detecting the currents flowing through the motors 12 and 52 by the current detectors 16 and 56, respectively. You can ask for it.
The tension FL of the long material 5 is constant so that the rotation of the unwinding motor 12 is slightly delayed with respect to the winding motor 52 so as to satisfy the relationship of the following expression from the above expressions (3) and (4). Can be controlled.
FL = τms / Gs / Rs = τmo / Go / Ro (8)
The relational expression is stored in the storage unit 107, and the calculation unit 109 is configured to execute the calculation expression stored in the storage unit 107.

The operation of the unwinding and winding system configured as described above will be described with reference to FIGS. 3 is a flowchart showing the operation of the unwinding / winding system of FIG. 1, and FIG. 4 is a flowchart for calculating the unwinding frame and the current winding diameter of the winding frame.
First, the operator sets the thickness t of the long material 5, the initial winding diameter Rs 1 of the unwinding frame 10, the initial winding diameter Ro 1 of the winding frame 50, the reduction ratio Gs of the unwinding speed reducer 14, using the parameter setting unit 201. The reduction ratio Go of the winding reduction gear 54, the feed speed Vm of the speed roller 30, the thickness t of the long material 5 and the tension FL are inputted and stored in the numerical value setting unit 107 (step S101). The control device 100 drives the unwinding motor 12 via the unwinding amplifier 112 and rotates the unwinding frame 10 by the unwinding speed reducer 14, and at the same time, the roller motor 32 via the speed amplifier 132. And the speed roller 30 is rotated, and at the same time, the winding motor 52 is driven via the winding amplifier 152 and the winding frame 50 is rotated by the winding speed reducer 54 (step S103). By such an operation, the long material 5 is wound around the winding frame 50 from the unwinding frame 10 via the speed roller 30.

The control device 100 takes in the current detection signal Is1 detected by the unwinding current detector 16 through the I / F 103 and the current flowing in the unwinding motor 12 and similarly takes up the current flowing in the unwinding motor 52. The current detection signal Is2 detected by the current detector 56 is taken in via the I / F 103, the rotational position of the roller motor 32 is detected by the encoder 34, and the position detection signal Ls is input to the control device 100 (step S105).
The control device 100 unwinds via the unwinding amplifier 112 and the unwinding amplifier 152 so that the tension of the long material 5 becomes constant according to the above equation (7) based on the current detection signals Is1 and Is2. While driving and controlling the motor 12 and the take-up motor 52, the speed roller 30 rotates at a predetermined speed so that the long material 5 is fed at a desired speed. Is driven (step S107).

The calculation unit 107 calculates the current winding diameter Rsn of the unwinding frame 10 and the current winding diameter Ron of the winding frame 50 based on the position detection signal Ls of the encoder 34 by the above equations (4) and (5). The unwinding motor 12 and the winding motor 52 are driven and controlled via the unwinding amplifier 112 and the winding amplifier 152 so as to satisfy the above expression (7) (step S109).
Here, the calculation unit 107 obtains the movement amount of the long material 5 based on the position detection signal of the encoder 34 (step S200), and calculates the current winding diameter Rsn of the unwinding frame 10 to calculate the long material 5. It is determined whether or not the amount of movement Ln has reached π · Rsn (step S201), and when reached, the rotation speed Ns of the unwinding frame 10 is increased by one (step S203), The winding diameter Rsn is obtained from the above formula (step S205).

The calculation unit 107 determines whether or not the movement amount Ln of the long material 5 has reached π · Ron in order to calculate the current winding diameter Ron of the winding frame 50 (step S207). The number of rotations No of the frame 50 is increased by 1 (step S209), and the current winding diameter Ron of the winding frame 50 is obtained from the above formula (step S211).
Then, the calculation unit 107 determines that the predetermined amount of winding of the long material 5 has been reached based on the position detection signal Ls of the encoder 34 (step S111), and when it reaches, the control device 100 stops. The signal is stopped by stopping the unwinding motor 16, the roller motor 30, and the winding motor 52 via the unwinding amplifier 112, the speed amplifier 201, and the winding amplifier 152.
On the other hand, if not reached in step S111, the above steps S103 to S111 are executed.
As described above, the control device 100 detects the rotational position of the speed roller 30 by the encoder 34 and determines the current winding diameters Rsn and Ron of the unwinding frame 10 and the winding frame 50 based on the position detection signal signal Ls. Since it was calculated | required, the to-be-detected part provided in either the unwinding part or the winding part with which the conventional unwinding and winding device was equipped, and the to-be-detected part were detected, and the unwinding part or the winding part A simple unwinding / winding device and unwinding / winding system 1 in which a period detector that generates a pulse number corresponding to the number of rotations is omitted can be obtained.

  As described above, the present invention can be applied to the use of an unwinding / winding device that unwinds a long material from an unwinding frame and winds it on the winding frame.

1 is a block diagram of an unwinding / winding control system showing an embodiment of the present invention. FIG. It is a model figure of the unwinding winding system shown in FIG. It is a flowchart which shows operation | movement of the unwinding winding system shown in FIG. It is a flowchart which calculates the present winding diameter of the unwinding frame and winding frame of the unwinding winding system shown in FIG.

Explanation of symbols

  5 Long material, 10 unwinding frame, 12 unwinding motor, 30 speed roller, 32 roller motor, 34 encoder, 50 winding frame, 52 winding motor, 100 control device.

Claims (1)

An unwinding frame for unwinding the wound long material;
An unwinding motor for rotating the unwinding frame;
A winding frame for winding the long material unwound from the unwinding frame;
A winding motor for rotating the winding frame;
And Carlo over La be rotated in contact with the long material to be wound into the winding Towaku been unwound from the unwinding frame,
A moving amount detecting means for generating a position detection signal corresponding to the amount of movement of the long material to be fed from said unwinder frame with the rotation of the roller to the winding Towaku,
Numerical value setting means for setting an initial unwinding diameter of the unwinding frame and an initial unwinding diameter of the winding frame;
First computing means for computing a current unwinding diameter of the unwinding frame based on the position detection signal and the initial unwinding diameter;
Second computing means for computing a current winding diameter of the winding frame based on the position detection signal and the initial winding diameter;
A control device that controls the rotation of the unwinding motor to be slightly delayed with respect to the winding motor, based on the current unwinding diameter of the unwinding frame and the current unwinding diameter of the winding frame;
An unwinding and winding device characterized by comprising:

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