JP2003252528A - Winding apparatus for long object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding apparatus for long objects, capable of continuing the operation thereof even under relatively long instantaneous power failure. <P>SOLUTION: This winding apparatus comprises a feed side rotor 5 for supplying a long object, a first motor 6 for rotating the feed side rotor 5, a first control part 7 for driving the first motor 6, a winding side rotor 8 for winding the long objects, a second motor 9 for rotating the winding side motor 8, a second control part 10 for driving the second motor 9, and a power supply for powering the first control part 7 and the second control part 10. The second control part 10, if power from the power supply is stopped, controls power voltage to the first control part 7 and the second control part 10 so as to keep a prescribed value with regenerative power obtained by controlling the rotational speed of the second motor 9 so as to decelerate it. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for winding a long object such as a wire or a strip-shaped object, and more particularly to a technique for controlling the winding when an instantaneous power failure occurs.

[0002]

2. Description of the Related Art Conventionally, a winding device for winding a long object such as a twisting machine is known. This winding device includes a wire feeding portion that feeds the longitudinal object such as a wire or a strip-shaped object from a bobbin that is fully wound, a winding portion that winds the fed longitudinal object onto an empty bobbin, and a wire feeding portion. It is composed of a dancer as a tension absorber provided between the winding part and the winding part.

In this winding device, winding is performed while controlling the winding linear velocity of the main winding portion so as to be synchronized with the feeding linear velocity of the auxiliary feeding portion. During the winding operation, if there is a difference between the feeding linear velocity and the winding linear velocity, if the difference is small, it is absorbed by the displacement of the dancer in the predetermined direction, and the disconnection of the longitudinal object is prevented. .

Each of the bobbin of the wire feeding portion and the winding portion is rotatably driven by a motor whose rotation speed is controlled by an inverter, so that the feeding linear velocity and the winding linear velocity are controlled to be constant. In addition, a displacement amount of a dancer in a predetermined direction is detected, and a sequencer is used to control the position so that the position is constant.

[0005]

However, in the conventional winding device configured as described above, the inverter stops the power supply to the motor when the power supply receiving the power fails or a momentary power failure occurs. The sequencer also stops controlling. As a result, the winding control is interrupted and the longitudinal object is disconnected in an instant.

When such a wire breakage occurs, for example, in a twisting machine that bundles a plurality of wires into a bundle, the work of untangling the wires after the wire breakage occurs, the work of connecting the cut wires, and the new bobbin. An enormous amount of work is required because it requires changes and the like. If even one wire is broken, the winding of multiple wires must be restarted from the beginning, so there is a large economic loss.

In order to avoid the problem associated with such a power failure, it is conceivable to back up the power supplied to the winding device with, for example, a large capacity uninterruptible power supply. However, such a large capacity uninterruptible power supply is expensive,
Moreover, since maintenance work such as battery replacement is required, there is a problem that the introduction cost and the operation cost of the winding device increase.

As a technique for solving such a problem, Japanese Unexamined Patent Publication No. 7-101629 discloses a product which does not have a problem in quality continuously without stopping the machine or cutting a yarn even if a momentary power failure occurs. "A method and an apparatus for controlling the number of revolutions in a yarn making device or a yarn processing machine" that can produce

In this technique, each motor is driven by an inverter power supply having a common converter so that a plurality of rotating bodies, each of which is connected to the motor, rotate at a predetermined rotation ratio. Then, when the input voltage of the converter becomes equal to or lower than a predetermined value during the rotation of the rotating body, the rotation speed of the other rotating body based on the rotation of the rotating body having the maximum deceleration gradient among the plurality of rotating bodies. Decelerates the rotation speed of each rotating body so that becomes a predetermined rotation ratio, and when the voltage recovers to a predetermined value or more, the rotation speed of each rotating body has a predetermined gradient, and at a predetermined rotation ratio, Accelerate to a specified speed.

However, this Japanese Patent Laid-Open No. 7-10162
In the technique disclosed in Japanese Patent No. 9 publication, when the instantaneous power failure occurs, the number of rotations of each motor is decelerated at a predetermined rotation ratio, and when the instantaneous power failure is restored, the speed is increased. Each motor stops when a predetermined time elapses after the occurrence. Once each motor stops, the operation start operation must be performed again, which is troublesome.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a winding device for a long object which can continue operation even in the case of a relatively long momentary power failure. is there.

[0012]

The present invention adopts the following means in order to achieve the above object. That is, in the winding device for a longitudinal object according to the invention of claim 1, a supply-side rotating body for supplying the longitudinal object, a first motor for rotating the supply-side rotating body, and a first motor for driving the first motor. 1 control unit,
A winding side rotating body for winding up the longitudinal object, a second motor for rotating the winding side rotating body, a second control section for driving the second motor, the first control section and the second control section. A power supply for supplying power to a control unit, wherein the second control unit is configured to supply the second power when the power supply from the power supply is stopped.
It is characterized in that the regenerative power obtained by controlling the rotation speed of the motor is controlled so that the power supply voltage to the first control unit and the second control unit is maintained at a predetermined value.

According to the first aspect of the present invention, for example, when the power supply from the power source is stopped due to an instantaneous power failure, the rotation speed of the second motor for driving the winding side rotating member is controlled to be decelerated, that is, at the present time. The regenerative electric power is taken out from the second motor by giving a command to the second motor to reduce the rotational speed from the rotational speed of. Then, using the extracted regenerative power, for example, a voltage of a predetermined value slightly lower than the original power supply voltage is continuously supplied to the first control unit and the second control unit. As a result, the control by the first control unit and the second control unit can be extended, so that the winding device is not immediately stopped even if a short instantaneous power failure occurs as in the conventional case, and a relatively long instantaneous power failure occurs. It becomes possible to correspond to.

As the winding side rotating body, it is desirable to use a heavy rotating body capable of storing a large amount of inertial energy.

According to a second aspect of the present invention, in the apparatus for winding a long object according to the first aspect, the second control unit provides the first control unit with a signal used for deceleration control of the rotation speed of the second motor. The first controller controls the rotation speed of the first motor based on the signal.

According to the second aspect of the present invention, since the rotation speed of the first motor is reduced in accordance with the decrease in the rotation speed of the second motor, the rotation speed of the supply side rotating body and the rotation of the winding side rotating body. The number is reduced in conjunction with it. Therefore, the longitudinal object existing between the supply side rotating body and the winding side rotating body is not cut.

According to a third aspect of the present invention, in the apparatus for winding a long object according to the first or second aspect, the second control unit is configured to supply the second object when the power supply from the power source is restored. It is characterized in that the speed is controlled to increase so that the rotation speed of the motor is gradually increased to return to a predetermined steady rotation speed.

According to the third aspect of the invention, when the instantaneous blackout is restored, the decelerated rotation speed is returned to the steady rotation speed. At this time, the speed increase control is performed so that the rotation speed of the second motor gradually increases. Therefore, the tension of the longitudinal object is not changed significantly. As a result, the longitudinal object existing between the supply side rotating body and the winding side rotating body is not cut.

According to a fourth aspect of the present invention, in the device for winding a long object according to the third aspect, the second control unit is configured to stop the power supply from the power source when the stop is instructed. It is characterized in that the number of rotations of the second motor is deceleratingly controlled at a predetermined deceleration gradient to stop.

According to the fourth aspect of the invention, when the power supply is restored, as in the case where the stop is instructed during the normal operation, the speed is controlled to be decelerated at a predetermined deceleration gradient to stop.
Even if an abnormal situation such as momentary power failure occurs,
Enables stable operation stop operation.

According to a fifth aspect of the present invention, there is provided a supply side rotating body for supplying the longitudinal object, a first motor for rotating the supply side rotating body, and a first control section for driving the first motor.
A winding side rotating body for winding up the longitudinal object, a second motor for rotating the winding side rotating body, a second control section for driving the second motor, the first control section and the second control section. A power supply for supplying power to the control unit, wherein the first control unit is configured to supply the power to the first control unit when power supply from the power supply is stopped.
It is characterized in that the regenerative power obtained by controlling the rotation speed of the motor is controlled so that the power supply voltage to the first control unit and the second control unit is maintained at a predetermined value.

According to a fifth aspect of the present invention, instead of obtaining the regenerative electric power by decelerating the rotation speed of the second motor that drives the winding side rotating body that winds up the longitudinal object, the supplying side rotating body that supplies the longitudinal object. Except for obtaining the regenerative power by controlling the rotation speed of the first motor for driving the motor, the same operation and the same effect as the invention of claim 1 are achieved.

According to a sixth aspect of the present invention, in the apparatus for winding a long object according to the fifth aspect, the first control unit sends a signal used for deceleration control of the rotation speed of the first motor to the second control unit. The second controller controls the rotation speed of the second motor based on the signal. Further, the invention of claim 7 is the apparatus for winding a longitudinal object according to claim 5 or claim 6, wherein the first control unit controls the first motor when the power supply from the power source is restored. It is characterized in that speed-up control is performed so that the rotation speed gradually increases, and the speed is returned to a predetermined steady rotation speed. Further, the invention of claim 8 is
The winding device for a longitudinal object according to claim 7, wherein the first
The control unit is characterized in that, when the stop is instructed before the power supply from the power source is restored, the control unit decelerates and controls the rotation speed of the first motor at a predetermined deceleration gradient to stop the rotation.

According to the inventions of claim 6, claim 7 and claim 8, the same actions and effects as those of the inventions of claim 2, claim 3 and claim 4, respectively, are achieved.

[0025] The invention of claim 9 relates to claim 1 to claim 4.
In the winding device for a longitudinal object according to any one of items 1 to 5, the supply-side rotating body includes a plurality of rotating bodies, the first motor includes a plurality of motors that rotate the plurality of rotating bodies, respectively. One control unit is composed of a plurality of control units that drive the plurality of motors, respectively.

According to the invention of claim 9, the same operation and effect as the invention of claim 1 described above are exhibited, and it is suitable for a twisting wire machine for twisting a plurality of longitudinal objects to produce one longitudinal object. Is.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a winding apparatus for a longitudinal object according to the present invention will be described below in detail with reference to the drawings.

(First Embodiment) FIG. 1 is a diagram showing a structure of a stranding machine as an example of a winding apparatus for a longitudinal object according to a first embodiment of the present invention.

[0029] The strand machine, a plurality of wires ₁ 1 to 1 ₄ a plurality of sheet wire portion bobbin 21 _{to 24} for supplying a guide 3 from each of the plurality of sheet wire portion bobbin 21 _{to 24} a capstan 5 pick for supplying a bold line of the wire 4 by twisting take back a plurality of wires 1 ₁ to 1 ₄ supplied via this take-off sheet line section motor for rotating the capstan 5 ( M1) 6, a supply line inverter (INV1) 7 for controlling the rotation of the supply line motor 6, a winding section bobbin 8 for winding the wire 4, and a winding section for rotating the winding section bobbin 8. Motor for catching part (M
2) 9, a winding-up inverter (INV2) 10 for controlling the rotation of the winding-up motor 9, a winding capstan 5 and a winding-up bobbin 8, and the wire 4 is wound when the wire 4 is wound up. A tension detecting device 11 for detecting the tension applied to the wire 4 and a plurality of rollers 21 to 24 arranged in the passage of the wire 4 are provided.

The long object of the present invention is the wire 4, the supply side rotating body is the take-up capstan 5, the first motor is the feed line motor 6, the first controller is the feed line inverter 7, and the take-up side. The rotating body corresponds to the winding section bobbin 8, the second motor corresponds to the winding section motor 9, and the second control section corresponds to the winding section inverter 10.

A plurality of wires 1₁~ 1_FourEach is a superfine wire
is there. Bobbin 2₁~ 2 _FourRotate each
It is configured freely, and at the start of the twisting operation,
Wire 1₁~ 1_FourIs fully wound. Multiple feeders
Part bobbin 2₁~ 2_FourMultiple wire rods 1₁~ 1
_FourSupplied to the capstan 5 via the guide 3
To be done.

The take-up capstan 5 is connected to the rotary shaft 6a of the wire feed unit motor 6 and is rotatable. The take-up capstan 5 is rotationally driven by a line supply motor 6 that operates by power supply from the line supply inverter 7. Then, by twisting a plurality of wires ₁ 1 to 1 ₄ to form a single wire 4, it sends as a wire 4. The feeder motor 6 is, for example, an AC motor such as an induction motor.

The tension detecting device 11 is arranged between the take-up capstan 5 and the winding portion bobbin 8 and has a so-called dancer function. This tension detector 1
1 absorbs the tension of the wire 4 by the dancer function to prevent the slack and disconnection, and detects the tension of the wire 4 based on the position of the dancer. This detected tension is
As a dancer position detection signal, an analog voltage signal of 0 to 10 V is sent to the line feeder inverter 7.

The tension detecting device 11 has a cylindrical pressure body 11a as a dancer in contact with the wire 4, a tension sensor 11b for converting the vertical position of the pressure body 11a into an electric signal, and a guide. Means 11c and tension spring 11d
Consists of. The wire 4 is in contact with the upper side of the pressure body 11a. The axis of the pressurizing body 11a is a slit 11f extending in the vertical direction of the support plate 11e as the guide means 11c.
Is inserted in the slit 11f.
It can move up and down within the range. In order to apply tension to the wire 4, the pressure body 11a is always biased upward by the tension spring 11d. When the tension of the wire 4 becomes strong, the dancer, that is, the pressure body 11a moves downward, and when the tension becomes weaker, the pressure body 11a moves upward. In this specific example, the strength of the spring 11d is adjusted so that the pressurizing body 11a is located in the middle of the slit 11f when the optimum tension is applied. The tension sensor 11b is also called a position sensor that works in conjunction with the pressure body 11a.

The wire feed section inverter 7 is connected to the wire feed section motor 6 and has an error between the dancer reference value preset by the dancer reference value command input device 12 and the value of the dancer position detection signal from the tension detecting device 11. That is, the deviation signal causes P
The I (proportional and integral) control is performed to control the output frequency of the sine wave AC voltage supplied to the feeder motor 6 so that the dancer position always becomes the dancer reference value (dancer position constant control).

The winding portion bobbin 8 has a cylindrical winding portion and is rotatably connected to the rotating shaft 9a of the winding portion motor 9. This winding part bobbin 8
Has about three times the size of the winding unit motor 9 and functions as an inertial body. The winding portion bobbin 8 becomes heavier because the amount of the wire 4 to be wound increases as the winding time elapses, and the inertia becomes large.

In the winding section bobbin 8, the wire 4 is empty at the start of the twisting operation, and the winding section motor 9 is operated by the power supplied from the winding section inverter 10.
Is driven to rotate to wind up the wire 4. The winding unit motor 9 is an AC motor such as an induction motor.

The speed command input device 13 includes a steady speed command value that specifies the rotational speed of the winding section motor 9 during steady operation by frequency, an acceleration gradient value that specifies the rotational speed gradient during acceleration, and rotation during deceleration. Used to enter a deceleration slope value that specifies the speed slope. This speed command input device 13
Supplies the input speed command value, acceleration gradient value and deceleration gradient value to the winding section inverter 10.

The winding section inverter 10 controls the frequency of the sinusoidal AC voltage supplied to the winding section motor 9 to control the rotation speed of the winding section motor 9. That is, the winding section inverter 10 is connected to the winding section motor 9 and outputs an error, that is, a deviation signal between the speed command value preset by the speed command input device 13 and the speed value detected by the sensor (not shown). PI (proportional integration) control is performed, and the output frequency of the sine wave AC voltage supplied to the winding unit motor 9 is determined so that the rotation speed of the winding unit motor 9 is always at the speed command value (speed constant control).

In the winding section inverter 10, the output frequency (rotation) of the winding section inverter 10 is adjusted so that the speed at which the wire 4 is sent out from the take-up capstan 5 is linked to the speed at which the winding section bobbin 8 is wound. 0 to 10 as a frequency command for the feeder 7
The analog voltage signal of V is sent to the line inverter 7.

This stranded wire machine is equipped with a winding section inverter 1
The feed line inverter 7 performs an interlocking operation following the speed command of 0, and the change in tension due to winding thickening or disturbance causes the feed line inverter 7 to perform a constant dancer position control (constant tension control).
The basic structure is to absorb by performing.

The positive side terminal P and the negative side terminal N of the DC power source of the winding section inverter 10 are respectively connected to the positive side terminal P and the negative side terminal N of the power source of the feeding section inverter 7 through the DC power source line. It is connected. With this configuration, the power is distributed, and the power supply to the wire feed section motor 6 and the winding section motor 9 is backed up at the time of an instantaneous power failure, so that disconnection is prevented.

Next, a general configuration of the inverters used as the line feeding section inverter 7 and the winding section inverter 10 will be described with reference to FIG.

The inverter comprises a converter section 30, a rush current prevention resistor R, a relay RY, a capacitor C and a switching section 31.

The converter section 30 is composed of a rectifying circuit composed of a diode bridge. This converter unit 30 receives, for example, a three-phase alternating current of 200 V from an alternating current power source, converts it into a positive pulsating current, and outputs it. The output of the converter unit 30 is supplied to the capacitor C via the inrush current prevention resistor R. As the capacitor C, a large-capacity electrolytic capacitor is usually used. The pulsating flow from the converter unit 30 is smoothed by the capacitor C. As a result, a DC voltage is obtained between the terminals P and N of the capacitor C.

The inrush current prevention resistor R is provided to limit an excessive current flowing into the capacitor C when the power is turned on. Therefore, when a predetermined time elapses after the power is turned on, the relay RY operates to short-circuit the inrush current prevention resistor R, and thereafter, the pulsating current from the converter unit 30 is directly supplied to the capacitor C. The DC voltage across the capacitor C is supplied to the switching unit 31.

The switching unit 31 is composed of, for example, an intelligent power module (IPM). The switching unit 31 performs PWM (pulse width modulation) by driving a switching element on the output side (U, V, W) in response to a speed command signal (not shown), and performs high frequency switching of a rectangular wave to drive the motor M. A sinusoidal current is supplied to.

When the three-phase AC power supply to the inverter is stopped, the DC power stored in the capacitor C becomes the motor M.
Is gradually discharged to the side. When the voltage reaches the lower limit voltage, the inverter issues an undervoltage alarm and stops. It is determined according to the capacity of the capacitor C from the stop of the power supply until the undervoltage alarm is generated.
Normally, it is about 15 ms during the inverter rated load operation.

Next, the detailed structure of the winding section inverter 10 will be described with reference to FIG. As shown in FIG. 3, the winding unit inverter 10 includes a converter unit 30, a capacitor C, a switching unit 31, a voltage detection unit 32, a power failure determination unit 33, a power failure reference voltage unit 34, an adder 35, and a voltage −.
Frequency converter (VF converter) 36, ΔF controller 37,
It is composed of a switch 38, an acceleration / deceleration gradient control unit 39, and an adder 40.

The converter section 30, the capacitor C and the switching section 31 are the same as those described with reference to FIG. The inrush current prevention resistor R and the relay RY
Are included in the converter unit 30. First
In the embodiment of the present invention, converter unit 30 is commonly used by feed line inverter 7 and winding unit inverter 10.

The voltage detecting section 32 has a terminal P of the capacitor C.
The voltage between the terminal N and the terminal N is detected. This voltage detector 32
The voltage detected at is supplied to the power failure determination unit 33 as a detected voltage.

The power failure judging section 33 compares the detected voltage sent from the voltage detecting section 32 with the reference voltage stored in advance, and when the detected voltage becomes lower than the reference voltage, a power failure occurs. It is determined that it has been done, and a signal indicating that is sent to the switch 38 and the ΔF control unit 37. On the other hand, when the detected voltage becomes lower than the reference voltage and becomes higher than the reference voltage, it is determined that the instantaneous power failure has been recovered, and a signal indicating that is sent to the switch 38 and the ΔF control unit 37. Furthermore, the power failure determination unit 33 supplies the detected voltage sent from the voltage detection unit 32 to the adder 35.

The power failure reference voltage section 34 holds a power failure reference voltage used as a reference voltage during a power failure. As the reference voltage at the time of power failure, as shown in FIG. 4 (D), in a normal state, the voltage (PN) generated across the capacitors C of the line feeding section inverter 7 and the winding section inverter 10 is used.
A voltage slightly lower than the (inter-voltage) is used. The power failure reference voltage held in the power failure reference voltage section 34 is supplied to the adder 35.

The adder 35 calculates the difference between the power failure reference voltage from the power failure reference voltage section 34 and the difference voltage from the power failure determination section 33. The output of the adder 35 is sent to the voltage-frequency conversion unit 36.

The voltage-frequency conversion section 36 (also referred to as a VF conversion section) converts the voltage sent from the adder 35 into a frequency signal ΔF corresponding to the voltage. The frequency signal ΔF generated by this conversion is supplied to the ΔF control unit 37 and the C input terminal of the switch 38.

The ΔF control unit 37 stores the frequency signal ΔF received from the voltage-frequency conversion unit 36 when receiving the signal indicating that the instantaneous power failure has occurred from the power failure determination unit 33. Further, when the signal indicating that the instantaneous power failure is restored is received from the power failure determination unit 33, the stored frequency signal ΔF is output while gradually decreasing with the passage of time. The output of the ΔF control unit 37 is supplied to the A input terminal of the switch 38.

The switch 38 has an A input terminal, a B input terminal and a C input terminal, any one of which is connected to the D output terminal. The B input terminal is grounded. The D output terminal of the switch 38 is connected to the C input terminal in response to the signal from the power failure determination unit 33 indicating that the instantaneous power failure has occurred, and is connected to the A input terminal in response to the signal indicating that the instantaneous power failure has been restored. It is controlled so that it is connected, and in other cases, it is connected to the B input terminal. The signal from the D output terminal of the switch 38 is supplied to the adder 40 as a velocity displacement value.

The acceleration / deceleration gradient control unit 39, based on the speed command value, the acceleration gradient value and the deceleration gradient value input from the speed command input device 13, winds the twisting machine at the start of operation, at the time of steady operation and at the time of stop of operation. A control value that specifies the rotation speed of the take-up motor 9 by frequency is generated. This acceleration / deceleration gradient control unit 39
The control value generated in 1 is sent to the adder 40.

The adder 40 adds the speed displacement value from the switch 38 and the control value from the acceleration / deceleration gradient control unit 39,
The speed command value Fout is generated. The speed command value Fout generated by the adder 40 is supplied to the switching unit 31 and also to the switching unit of the wire feed unit inverter 7. As a result, the feeder motor 6 and the take-up motor 9 are each driven to rotate at a rotation speed corresponding to the speed command value Fout.

The operation of the twisting machine including the winding section inverter 10 configured as described above will be described. First, the operation when normal operation is performed will be described. That is, normally, the D output terminal of the switch 38 is connected to the B input terminal, and the control value from the acceleration / deceleration gradient control unit 39 is the speed command value F.
used as out. Therefore, when the operation starts, the rotation speed gradually increases according to the acceleration gradient value, and when the steady operation starts, the rotation speed according to the speed command value is maintained, and when the operation stops, the rotation speed gradually decreases according to the deceleration gradient value. Thus, the rotation speeds of the winding portion motor 9 and the wire feeding portion motor 6 are controlled.

Next, the operation when an instantaneous power failure occurs will be described with reference to the timing chart shown in FIG. 4 and the flow chart shown in FIG.

First, the winding section inverter 10 checks whether or not an instantaneous power failure has occurred (step S10).
Specifically, the voltage detection unit 3 of the winding unit inverter 10
2 constantly detects the voltage across the capacitor C (voltage between P and N) and sends it to the power failure determination unit 33.

The power failure judging section 33 checks whether or not the detected voltage sent from the voltage detecting section 32 becomes lower than the reference voltage stored in advance inside. Here, if an instantaneous power failure occurs in the AC power source, as shown in FIG.
The AC power supply shifts from the energized state (ON) to the cutoff state (OFF). As a result, the power supply line inverter 7 is set to the position shown in FIG.
As shown in (B), from the steady state in which electric power is supplied from the power supply line inverter 7 to the power supply line motor 6,
To the regenerative state in which electric power is supplied to the power supply line inverter 7. Similarly, the winding unit inverter 10 is similar to that shown in FIG.
As shown in (C), the steady state in which electric power is supplied from the winding section inverter 10 to the wire feeding section motor 9 shifts to a regenerative state in which electric power is supplied from the winding section motor 9 to the winding section inverter 10.

When the power failure determination section 33 determines that an instantaneous power failure has occurred, the rotation speed of the winding section motor 9 is controlled so that the DC voltage across the capacitor C is maintained at a constant value. (Step S11). In particular,
The following controls are performed. That is, the power failure determination unit 33 sends to the switch 38 a signal indicating that an instantaneous power failure has occurred. As a result, the D output terminal of the switch 38 is connected to the C input terminal.

The adder 35 calculates the difference between the power failure reference voltage from the power failure reference voltage section 34 and the voltage from the power failure determination section 33, and sends it to the voltage-frequency conversion section 36. The differential voltage from the voltage-frequency conversion unit 36 is converted into a frequency signal ΔF and sent to the adder 40 via the switch 38. The adder 40 subtracts the frequency signal ΔF from the control value output from the acceleration / deceleration gradient control unit at that time and sends it to the switching unit 31. As a result, the rotation speed of the winding unit motor 9 is reduced by the rotation speed corresponding to the frequency signal ΔF.

By repeating the same loop thereafter, the voltage across the capacitor C gradually decreases as shown in FIG. 4 (D) and coincides with the reference voltage during power failure from the reference voltage section during power failure 34. It will be in equilibrium and constant at this point.

In this state, the regenerative energy is fed back from the winding motor 9 which rotates in conjunction with the winding bobbin 8 which rotates by inertia to the winding inverter 10 to charge the capacitor C and the capacitor C. The voltage between both ends becomes constant (step S12).

At the same time, the regenerative energy is sent to the power supply line inverter 7 via the DC power supply line (step S).
13). Therefore, the voltage across the capacitor C of the supply line inverter 7 becomes constant. As a result, the rotation speed of the wire feed motor 6 driven by the wire feed inverter 7 is controlled in conjunction with the rotation speed of the winding motor 9 in step S11 (step S14).

By the above operation, the driving of the wire feeding portion motor 6 and the winding portion motor 9 is maintained (step S1).
5). Next, it is checked whether or not the above control should be ended (step S16). This is performed, for example, by checking whether or not an undervoltage alarm has been issued without recovering from the instantaneous power failure, and whether or not the voltage across the capacitor C has returned to a normal value by recovering from the instantaneous power failure.
If it is determined in step S16 that the processing has not ended, the process returns to step S10 and the above-described operation is repeated.

While the above processing is repeated, the rotational speed of the line feeding motor 6 is controlled using the regenerative energy, so the rotational speed of the line feeding motor 6 is shown in FIG. 4 (E). So it decreases very slowly. Similarly, the rotation speed of the winding unit motor 9 also decreases very gently as shown in FIG. Then, if the undervoltage alarm is issued without recovering from the momentary power failure, it becomes difficult to control the rotation speeds of the wire feed portion motor 6 and the winding portion motor 9 by the regenerative energy, and it is determined that the operation is finished in step S16. It will be stopped.

When the AC power supply recovers from the momentary power failure in the process of repeating the above steps S10 to S16, FIG.
As shown in (A), the AC power supply shifts from the regenerative state (OFF) to the energized state (ON). As a result, as shown in FIG. 4 (B), the power supply line inverter 7 moves from the power supply line motor 6 to the power supply line inverter 7 in a regenerative state to supply power to the power supply line motor 7. 6 shifts to a steady state of supplying electric power. Similarly, as shown in FIG. 4C, the winding section inverter 10 changes from the winding section inverter 10 to the winding section motor 10 in a regenerative state in which electric power is supplied from the winding section motor 9 to the winding section inverter 10. A steady state in which electric power is supplied to 9 is entered.

In this state, if it is determined in step S10 that the momentary power failure has not occurred, it is next checked whether or not the momentary power failure has been restored (step S1).
7). This is performed by checking whether or not the instantaneous power failure has been restored by the power failure determination unit 33. This power failure determination unit 3
When it is determined in 3 that the instantaneous power failure has been restored, control is performed to gently increase the rotation speeds of the winding motor 9 and the wire feeding motor 6 (step S18). Specifically, when the power outage determination unit 33 determines that the instantaneous power outage has been restored, it sends a signal to that effect to the switch 38. As a result, the D output terminal of the switch 38 is connected to the A input terminal.

As a result, the frequency signal ΔF output from the ΔF controller 37 is added to the adder 40 via the switch 38.
Is supplied to. The adder 40 subtracts the frequency signal ΔF, which decreases with the passage of time, from the control value from the acceleration / deceleration gradient control unit 39 to generate a speed command value Fout. Therefore, at first, the frequency signal ΔF when the instantaneous power failure is detected
The speed command value Fout displaced by the amount is supplied to the feeder motor 6 and the winding motor 9. As a result, the number of rotations of the winding portion motor 9 and the wire feeding portion motor 6 starts to increase.

Next, it is checked whether or not a stop command is issued (step S19). This is performed by checking whether or not a stop operation has been performed with a stop switch (not shown). Here, if it is determined that the stop instruction is not issued, the process branches to step S16 to check whether the end is completed. Then, if it is determined that the termination is not completed, that is, the momentary power failure is restored and the voltage across the capacitor C is not returned to the normal value, the process returns to step S10, and thereafter, steps S17 → S18 → S19 → S16.
→ S10 → ... The process is repeated.

As a result of the above-described repeated execution, the number of rotations of the feeder motor 6 driven by the feeder inverter 7 is as shown in FIG.
It gradually rises as shown in (E). Similarly, the rotation speed of the winding unit motor 9 driven by the winding unit inverter 10 also gradually increases as shown in FIG. 4 (F).
Then, when the end is determined in step S16, the original steady operation is restored.

In the above-mentioned repeated execution process, step S
When it is determined that the stop command is issued at 20, the vehicle is decelerated at the normal deceleration gradient (step S20). More specifically, the D output terminal of the switch 38 is connected to the B input terminal, and a control value for decelerating according to a normal deceleration gradient is output from the acceleration / deceleration gradient control unit 39, which is wound as the speed command value Fout. It is supplied to the take-up motor 9 and the wire feed motor 6. As a result, the rotation speeds of the winding portion motor 9 and the wire feeding portion motor 6 are decelerated at a normal deceleration gradient, and the motor stops.

When it is determined in step S17 that the instantaneous power failure has not been recovered, it is determined that the operating state is normal, and the D output terminal of the switch 38 is connected to the B input terminal. A reference speed command value is output from the control unit 39 as a control value, and is supplied to the winding unit motor 9 and the wire feeding unit motor 6 as a speed command value Fout. As a result, when neither the instantaneous power failure nor the recovery from the instantaneous power failure is occurring, the winding section motor 9 and the wire feeding section motor 6 are rotationally driven at the rotation speed according to the speed command value input from the speed command input device 13. Normal operation is performed.

The operation waveforms obtained by actually measuring the state during an instantaneous power failure using the twisting machine configured as described above will be described below.

FIG. 6 shows operation waveforms when the regenerative power absorption control in the winding section inverter 10 is not performed. Figure 6
In the above, A: Vac is the AC power supply voltage when an instantaneous power failure occurs, B: Fout is the frequency analog command value of the winding section inverter 10, C: ω is the rotation speed of the feeder motor 6, and D:
Fout indicates the frequency analog monitor value of the feeder side inverter. After the momentary power failure, the operation is continued for about 500 ms until the energy stored in the capacitor C is discharged, but after that, the DC voltage of the inverter falls below the lower limit value, an alarm trip occurs, and control becomes impossible, The winding unit motor 9 continues to rotate by inertia. In this state, the wire 4 breaks in an instant.

FIG. 7 shows operation waveforms when the regenerative power absorption control in the winding section inverter 10 is performed. After the momentary power failure, the rotational speed and the frequency command gradually decrease even after the time that should normally trip, but the winding section inverter 10 can output the frequency command and drive the winding section motor 9. ing. Further, after the momentary power failure is restored, the number of revolutions is gradually increased and the normal state is gradually restored, so that the disconnection does not occur.

FIG. 8 shows a case where the regenerative power absorption control in the winding section inverter 10 is performed, and the operation is performed when the operation of the twisting machine is stopped during the power failure after the momentary power failure occurs. Indicates. In this case, after the momentary power failure is restored, the winding section inverter 10 does not perform the acceleration operation,
Transition to the stop operation at the originally set deceleration time.

As described above, according to the twisting machine of the first embodiment, the winding section motor 9 for driving the winding section bobbin 8 is operated when the power supply from the AC power source is stopped due to the momentary power failure. By controlling the rotation speed to be reduced, that is, by giving a command to reduce the rotation speed from the current rotation speed to the winding motor 9, the regenerative electric power is extracted from the winding motor 9. Then, by using the regenerated electric power taken out, for example, a reference voltage at the time of power failure that is slightly lower than the original power supply voltage is supplied to the supply line inverter 7 and the winding unit inverter 10.
To continue to supply. As a result, the control by the line feeding section inverter 7 and the winding section inverter 10 can be postponed, so that the winding apparatus is not immediately stopped even if a short instantaneous power failure occurs as in the conventional case, and it is relatively long. It becomes possible to cope with an instantaneous power failure.

In the twisting machine according to the first embodiment of the present invention, the operation continuation time during an instantaneous power failure depends on the size of the winding section bobbin 8 serving as an inertial body. It has been confirmed that even if the size of the winding portion motor 9 is about three times as large as that of the winding portion motor 9, it is possible to extend the instantaneous blackout withstanding capacity of about 15 ms to about 15 to 20 seconds.

(Second Embodiment) A second embodiment of the present invention is a rewinding device as an example of a device for winding a long object. In the winding device for a longitudinal object according to the second embodiment, the wire feed portion bobbin that feeds out the wire 4 is configured to be an inertial body. Note that, in the following, the same or corresponding parts as those in the first embodiment will be described with the same reference numerals as those in the first embodiment.

FIG. 9 is a view showing the arrangement of a long object winding device as an example of a long object winding device according to the second embodiment of the present invention.

This winding device includes a wire feed portion bobbin 14 for supplying the wire 4, a wire feed portion motor (M1) 6 for rotating the wire feed portion bobbin 14, and a rotation of the wire feed portion motor 6. Inverter (INV1) 7a for controlling power supply
A winding portion bobbin 8a for winding the wire 4, a winding portion motor (M2) 9 for rotating the winding portion bobbin 8a, and a winding portion inverter for controlling the rotation of the winding portion motor 9. (INV2) 10a, a tension detecting device 11 arranged between the wire feeding portion bobbin 14 and the winding portion bobbin 8a to detect the tension applied to the wire 4 when winding the wire 4, and arranged in the passage of the wire 4. And a plurality of rollers 21 to 24 that are formed.

The long object of the present invention is wound on the wire 4, the supply side rotating body is wound on the wire feeding portion bobbin 14, the first motor is wound on the wire feeding portion motor 6, and the first controller is wound on the wire feeding portion inverter 7a. The side rotating body corresponds to the winding section bobbin 8a, the second motor corresponds to the winding section motor 9, and the second control section corresponds to the winding section inverter 10a.

The wire 4 is an ultrafine wire. Feeding section bobbin 1
Numeral 4 is connected to the rotary shaft 6a of the wire feed unit motor 6 so as to be rotatable, and the wire 4 is fully wound at the start of the winding operation. This feeder part bobbin 14
Has about three times the size of the feeder motor 6 and functions as an inertial body. This feeder part bobbin 14
Is rotatably driven by the wire feed section motor 6 that operates by the power supply from the wire feed section inverter 7a, and sends out the wire 4. The feeder motor 6 is, for example, an AC motor such as an induction motor.

The speed command input device 13 includes the line feed motor 6
Used to input a steady speed command value that specifies the rotation speed during steady operation of the frequency, an acceleration gradient value that specifies the rotation speed gradient during acceleration, and a deceleration slope value that specifies the rotation speed gradient during deceleration. To be done. This speed command input device 13
The input speed command value, acceleration gradient value, and deceleration gradient value are supplied to the line feeding section inverter 7a.

The power supply line inverter 7a includes a power supply line motor 6a.
The frequency of the sinusoidal AC voltage supplied to the motor is controlled to control the rotation speed of the feeder motor 6. That is, the line feeding section inverter 7a is connected to the line feeding section motor 6 and outputs an error, that is, a deviation signal between a speed command value preset by the speed command input device 13 and a speed value detected by a sensor (not shown). PI
(Proportional integration) control is performed, and the output frequency of the sine wave AC voltage supplied to the line feeding motor 6 is determined so that the rotation speed of the line feeding motor 6 is always the speed command value (speed constant control).

Further, in order to synchronize the speed at which the wire 4 is fed from the wire feeder bobbin 14 with the speed at which the winding wire bobbin 8a winds the wire feed portion inverter 7a, the output frequency (rotation speed) ) The command is sent to the winding section inverter 10a as an analog voltage signal of 0 to 10 V as a frequency command for the line feeding section inverter 7.

The tension detecting device 11 is the same as that of the first embodiment. The tension detected by the tension detecting device 11 is sent as a dancer position detection signal to the winding section inverter 10a as an analog voltage signal of 0 to 10V.

The winding portion bobbin 8a has a cylindrical winding portion, is connected to the rotating shaft 9a of the winding portion motor 9, and is rotatable. In the winding section bobbin 8a, the wire 4 is in an empty state at the start of the rewinding operation, and is driven to rotate by the winding section motor 9 operated by the power supply from the winding section inverter 10a to wind the wire 4. The winding unit motor 9 is an AC motor such as an induction motor.

The winding section inverter 10a is connected to the winding section motor 9, and is connected to the dancer reference value command input device 1
The PI (proportional integral) control is performed according to the error between the dancer reference value preset by 2 and the value of the dancer position detection signal from the tension detecting device 11, that is, the deviation signal so that the dancer position always becomes the dancer reference value ( Dancer position constant control), and controls the output frequency of the sinusoidal AC voltage supplied to the winding unit motor 9.

This winding device is provided with the line feeding inverter 7
The winding section inverter 10a performs an interlocking operation following the speed command of a, and changes in tension due to winding thickening or disturbance are absorbed by performing constant dancer position control (constant tension control) in the winding section inverter 10a. Based on the configuration.

Further, the positive side terminal P and the negative side terminal N of the DC power source of the power feeding section inverter 7a are respectively connected to the positive side terminal P and the negative side terminal N of the power source of the winding section inverter 10a through the DC power source line. Has been done. With this configuration,
The electric power is distributed, and the power supply to the wire feed portion motor 6 and the winding portion motor 9 is backed up at the moment of an instantaneous power failure, and the wire breakage is prevented.

In the operation of the winding device configured as described above, the wire feeding section inverter 7a operates similarly to the winding section inverter 10 of the first embodiment, and the winding section inverter 10a operates as the first winding section inverter 10a. Inverter 7 for wire feeder of the embodiment
The operation is the same as that of the stranding machine according to the first embodiment except that the operation is similar to.

According to the winding device of the second embodiment, the number of rotations of the wire feed portion motor 6 that drives the wire feed portion bobbin 14 when the power supply from the AC power source is stopped due to an instantaneous power failure. Is controlled by decelerating, that is, by giving a command to the rotating speed lower than the current rotating speed to the wire supplying section motor 6, regenerative electric power is taken out from the wire supplying section motor 6. Then, by using the extracted regenerative power, for example, a reference voltage at the time of power failure that is slightly lower than the original power supply voltage is continuously supplied to the winding section inverter 10a and the line feeding section inverter 7a. As a result, the control by the winding section inverter 10a and the line feeding section inverter 7a can be extended, so that the winding apparatus is not immediately stopped even if a short instantaneous power failure occurs as in the conventional case, and it is relatively long. It becomes possible to cope with an instantaneous power failure.

In the winding device according to the second embodiment, the wire feed portion bobbin 14 on the side where the wire 4 is fed out.
Was used as an inertial body, but similarly, the take-up capstan 5 can also be configured to be used as an inertial body in the twisting machine according to the first embodiment described above. Also in this case, the same operation and effect as those of the above-mentioned rewinding machine are achieved.

(Third Embodiment) A third embodiment of the present invention is a stranding machine as an example of a device for winding a long object. In the winding device according to the third embodiment, the plurality of wire feed portion bobbins that feed out the wire material forming the wire 4 are configured to be inertial bodies. Note that, in the following, the same or corresponding parts as those in the first embodiment will be described with the same reference numerals as those in the first embodiment.

[0102] The strand machine, as shown in FIG. 10, a plurality of wires ₁ 1 to 1 ₄ a plurality of supplying feed line portion bobbin _{2 1}
21 to ₂₄ and, for supplying as a bold line of the wire 4 by twisting take back a plurality of wires 1 ₁ to 1 ₄ supplied through the guide 3 from each of the plurality of sheet wire portion bobbin 21 _{to 24} Capstan 5 and a plurality of wire feed bobbins 2
A plurality of sheet line portions motor for rotating the ₁ to 2 ₄ (M
1) 6 _{1 to} 6 ₄ and these plurality of feeder motors 6 _{1 to} 6
Inverter (INV1) 7 ₁ for controlling rotation of ₄
And _7-4, a winding portion bobbin 8 for winding up the wire 4,
A winding portion motor (M2) 9 for rotating the winding portion bobbin 8, a winding portion inverter (INV2) 10 for controlling the rotation of the winding portion motor 9, a take-up capstan 5, and a winding portion. A tension detecting device 11 arranged between the bobbin 8 and the bobbin 8 to detect the tension applied to the wire 4 when the wire 4 is wound, and a plurality of rollers 21 to 24 arranged in the passage of the wire 4.

The longitudinal object according to the present invention is attached to the wire 4 at the feeding side.
The rolling element is a plurality of wire feeding section bobbins 2₁~ 2 _FourThe first motor is
Multiple feeder motors 6₁~ 6_FourIn addition, the first control unit has a plurality of
Inverter 7₁~ 7_Four, The winding side rotating body is
On the take-up portion bobbin 8, the second motor is the take-up portion motor 9.
In addition, the second control unit is connected to the winding unit inverter 10,
Corresponding.

A plurality of wire rods 1₁~ 1_FourEach is a superfine wire
is there. Bobbin 2₁~ 2 _FourRotate each
It is configured freely, and at the start of the twisting operation,
Wire 1₁~ 1_FourIs fully wound. Multiple feeders
Part bobbin 2₁~ 2_FourIs the feeder motor 1₁~ 1_FourLinked to
It is configured to be rotatable. Multiple feeder bobbins
Two₁~ 2_FourIs the inverter 7₁~ 7_FourPowered from
Feeder motor 6 operated by₁~ 6_FourRotating by
Be moved. Each feeder motor 6₁~ 6_FourIs, for example, induction
It is an AC motor such as a motive. Bobbin 2₁~
Two_FourMultiple wire rods 1₁~ 1_FourThrough the guide 3
It is then collected and supplied to the capstan 5.

The take-up capstan 5 is made up of a plurality of wire rods 1.
By twisting ₁ to 1 ₄ to form a single wire 4, it sends as a wire 4.

The tension detecting device 11 is arranged between the take-up capstan 5 and the winding portion bobbin 8 and has a so-called dancer function. This tension detector 1
1 absorbs the tension of the wire 4 by the dancer function to prevent the slack and disconnection, and detects the tension of the wire 4 based on the position of the dancer. This detected tension is
Are sent to the feed line unit inverter ₇ 1-7 ₄ an analog voltage signal 0~10V as a dancer position detection signal.

The line-feeding section inverters 7 _{1 to} 7 ₄ are connected to the line-feeding section motors 6 _{1 to} 6 ₄ and the dancer reference value command input devices 12 _{1 to} 12 ₄ preset the dancer reference value and tension detecting device. performs PI (proportional integral) control by error or deviation signal between the value of the dancer position detection signal from 11, as dancer position is always the dancer reference value (dancer position constant control), supply line section motor 6 ₁ controlling the output frequency of the sine wave alternating voltage supplied to 6 _4.

The winding portion bobbin 8 has a cylindrical winding portion and is rotatably connected to the rotating shaft 9a of the winding portion motor 9. This winding part bobbin 8
Has about three times the size of the winding unit motor 9 and functions as an inertial body. The winding portion bobbin 8 becomes heavier because the amount of the wire 4 to be wound increases as the winding time elapses, and the inertia becomes large.

In the winding section bobbin 8, the wire 4 is empty at the start of the twisting operation, and the winding section motor 9 is operated by the power supplied from the winding section inverter 10.
Is driven to rotate to wind up the wire 4. The winding unit motor 9 is an AC motor such as an induction motor.

The speed command input device 13 includes a steady speed command value that specifies the rotational speed of the winding section motor 9 during steady operation by frequency, an acceleration gradient value that specifies the rotational speed gradient during acceleration, and rotation during deceleration. Used to enter a deceleration slope value that specifies the speed slope. This speed command input device 13
Supplies the input speed command value, acceleration gradient value and deceleration gradient value to the winding section inverter 10.

The winding section inverter 10 controls the frequency of the sinusoidal AC voltage supplied to the winding section motor 9 to control the rotation speed of the winding section motor 9. That is, the winding section inverter 10 is connected to the winding section motor 9 and outputs an error, that is, a deviation signal between the speed command value preset by the speed command input device 13 and the speed value detected by the sensor (not shown). PI (proportional integration) control is performed, and the output frequency of the sine wave AC voltage supplied to the winding unit motor 9 is determined so that the rotation speed of the winding unit motor 9 is always at the speed command value (speed constant control).

Further, the winding section inverter 10 is
The speed at which the wire 4 from the capstan 5 is fed
It is linked to the speed at which the bobbin 8 is wound.
Output frequency of the winding inverter 10 (rotation)
Send the command to the inverter 7 ₁~ 7_FourAs the frequency command of
Inverter 7 with analog voltage signal of 0-10V
₁~ 7_FourSend to.

This stranded wire machine uses the winding section inverter 1
The feed line inverters 7 _{1 to} 7 ₄ perform an interlocking operation following the speed command of 0, and the change in tension due to winding thickening or disturbance causes the feed line inverters 7 _{1 to} 7 ₄ to perform constant dancer position control (tension. Basically, it is configured to absorb by performing constant control).

Further, the positive side terminal P and the negative side terminal N of the DC power source of the winding section inverter 10 are respectively connected to the positive side terminal P and the negative side terminal N of the power source of the feeding section inverter 7 through the DC power source line. It is connected. With this configuration, the power is distributed, and the power supply to the wire feed section motor 6 and the winding section motor 9 is backed up at the time of an instantaneous power failure, so that disconnection is prevented.

The operation of the twisting machine configured as described above is as follows.
The operation is the same as that of the stranding machine according to the first embodiment, except that the power supply line inverters 7 _{1 to} 7 ₄ operate similarly to the power supply line inverter 7 of the first embodiment.

According to the rewinding device of the third embodiment, the feeder motors that drive the feeder bobbins 2 ₁ to 2 ₄ when the power supply from the AC power supply is stopped due to an instantaneous power failure. By decelerating the rotation speed of 6 _{1 to} 6 ₄ ,
That is, regenerative electric power is taken out from the line supply motors 6 _{1 to} 6 ₄ by giving a command to reduce the number of rotations from the current speed to the line supply motors 6 _{1 to} 6 ₄ . Then, by using the extracted regenerative power, for example, a reference voltage during a power failure that is slightly lower than the original power supply voltage is continuously supplied to the winding section inverter 10 and the line feeding section inverters 7 _{1 to} 7 ₄ . This allows
Winding section inverter 10 and feeder section inverter 7 ₁ ~
It is possible to extend the control by the 7 _4, without immediately winding device be short instantaneous power failure as in the prior art occurs is stopped, it is possible to correspond to a relatively long instantaneous power failure.

(Modification) The present invention is not limited to the twisting machine and the winding device for a longitudinal object according to the above-described embodiment, and the following modifications are possible, for example.

(1) The interlocking operation of the feeding side and the winding side of the wire 4 does not necessarily require the speed command for interlocking. It can be configured to perform control only by correction by the dancer.

(2) Each of the inverters on the supply line side and the winding side is not limited to the inverter for inputting the AC power supply, but an inverter for inputting the DC power supply can be used.

(3) Other peripheral devices, such as a magnet contactor (MC) and a sequencer, can be configured to be backed up as a DC power source for the inverter.

[0120]

According to the invention of claim 1, for example, when the power supply from the power source is stopped due to an instantaneous power failure, the rotation speed of the second motor for driving the winding side rotating member is controlled to be decelerated. That is, by giving a command to the second motor to reduce the rotation speed from the current rotation speed, regenerative electric power is taken out from the second motor. Then, using the extracted regenerative power, for example, a voltage of a predetermined value slightly lower than the original power supply voltage is continuously supplied to the first control unit and the second control unit. As a result, the control by the first control unit and the second control unit can be extended, so that the winding device is not immediately stopped even if a short instantaneous power failure occurs as in the conventional case, and a relatively long instantaneous power failure occurs. It becomes possible to correspond to.

According to the second aspect of the present invention, since the rotation speed of the first motor is decreased in accordance with the decrease in the rotation speed of the second motor, the rotation speed of the supply side rotating body and the rotation speed of the winding side rotating body. The number is reduced in conjunction with it. Therefore, the longitudinal object existing between the supply side rotating body and the winding side rotating body is not cut.

According to the third aspect of the present invention, when the instantaneous power failure is restored, the decelerated rotation speed is returned to the steady rotation speed. At this time, the speed increase control is performed so that the rotation speed of the second motor gradually increases. Therefore, the tension of the longitudinal object is not changed significantly. As a result, the longitudinal object existing between the supply side rotating body and the winding side rotating body is not cut.

According to the fourth aspect of the invention, when the power supply is restored, as in the case where the stop is instructed during the normal operation, the deceleration is controlled at the predetermined deceleration gradient to stop.
Even if an abnormal situation such as momentary power failure occurs,
Enables stable operation stop operation.

According to the inventions of claims 5 to 8, the same effects as those of the inventions of claims 1 to 4 described above are obtained. Further, according to the invention of claim 9, the same action and effect as those of the invention of claim 1 described above are exhibited, and it is suitable for a twisting wire machine for twisting a plurality of longitudinal objects to manufacture one longitudinal object. .

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a stranding machine as an example of a device for winding a longitudinal object according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram showing a general configuration of a wire feed section inverter and a winding section inverter provided in a twisting machine as an example of a device for winding up a longitudinal object according to a first embodiment of the present invention. Is.

FIG. 3 is a block diagram showing a configuration of a winding section inverter provided in a stranded wire machine as an example of a device for winding a long object according to a first embodiment of the present invention.

FIG. 4 is a timing chart for explaining the operation of the stranding machine as an example of the winding device for a longitudinal object according to the first embodiment of the present invention.

FIG. 5 is a flow chart for explaining the operation of the stranding machine as an example of the winding device for a longitudinal object according to the first embodiment of the present invention.

FIG. 6 is a diagram showing an actually measured operation waveform in the case where the regenerative power absorption control is not performed at the moment of a power failure in the twisting machine as an example of the device for winding the longitudinal object according to the first embodiment of the present invention. is there.

FIG. 7 is a diagram showing measured operating waveforms when a regenerative power absorption control is performed during a momentary power failure in a twisting machine as an example of a device for winding up a longitudinal object according to the first embodiment of the present invention. is there.

FIG. 8 is a stranded wire machine as an example of a device for winding up a longitudinal object according to a second embodiment of the present invention, in which actual measurements were performed when regenerative power absorption control was performed and a stop operation was performed during an instantaneous power failure. It is a figure which shows an operating waveform.

FIG. 9 is a diagram showing a configuration of a twisting machine as an example of a device for winding a longitudinal object according to a second embodiment of the present invention.

FIG. 10 is a diagram showing a configuration of a twisting wire machine as an example of a device for winding a longitudinal object according to a third embodiment of the present invention.

[Explanation of symbols]

1 ₁ to 1 ₄ Wire rod 2 ₁ to 2 ₄ Feeding wire bobbin 3 Guide 4 Wire 5 Pulling capstan 6 Feeding wire motor 7 Feeding wire inverter 8 Winding wire bobbin 9 Winding wire motor 10 Winding wire inverter 11 Tension Detection device 12 Dancer reference value command input device 13 Speed command input device 14 Wire feed part bobbin 30 Converter part 31 Switching part 32 Voltage detection part 33 Power failure determination part 34 Power failure reference voltage part 35, 40 Adder 36 Voltage-frequency conversion part 37 ΔF control unit 38 switch 39 acceleration / deceleration gradient control unit

Claims (9)

[Claims] 1. A supply-side rotator for supplying a longitudinal object, a first motor for rotating the supply-side rotator, a first controller for driving the first motor, and a coil for winding the longitudinal object. Winding body for rotation, a second motor for rotating the winding body, a second controller for driving the second motor, and a power supply for supplying power to the first controller and the second controller. And the second control unit uses the regenerative power obtained by decelerating the rotation speed of the second motor when the power supply from the power source is stopped. A winding device for a longitudinal object, characterized in that the voltage supplied to the control unit is controlled to be kept at a predetermined value. 2. The second control unit sends a signal used for deceleration control of the rotation speed of the second motor to the first control unit, and the first control unit outputs the signal of the first motor based on the signal. The device for winding up a longitudinal object according to claim 1, wherein the number of revolutions is controlled to be decelerated. 3. The second control unit, when the power supply from the power source is restored, increases the speed of the second motor so that the rotation speed of the second motor is gradually increased to return to a predetermined steady speed. The device for winding a long object according to claim 1 or 2, characterized in that 4. The second control unit decelerates and controls the rotation speed of the second motor at a predetermined deceleration gradient to stop when the stop is instructed before the power supply from the power source is restored. The device for winding up a longitudinal object according to claim 3, wherein: 5. A supply-side rotator for supplying a longitudinal object, a first motor for rotating the supply-side rotator, a first controller for driving the first motor, and a coil for winding the longitudinal object. Winding body for rotation, a second motor for rotating the winding body, a second controller for driving the second motor, and a power supply for supplying power to the first controller and the second controller. And the first control unit uses the regenerative power obtained by controlling the rotation speed of the first motor to be decelerated when the power supply from the power source is stopped, and the first control unit and the second control unit. A winding device for a longitudinal object, characterized in that the voltage supplied to the control unit is controlled to be kept at a predetermined value. 6. The first control unit sends a signal used for deceleration control of the rotation speed of the first motor to the second control unit, and the second control unit outputs the signal of the second motor based on the signal. The apparatus for winding up a longitudinal object according to claim 5, wherein the rotation speed is controlled to be decelerated. 7. The first control unit, when the power supply from the power source is restored, increases the speed of the first motor so that the rotation speed of the first motor is gradually increased to return to a predetermined steady speed. The winding device for a long object according to claim 5 or 6, characterized in that: 8. The first control unit decelerates and controls the rotation speed of the first motor at a predetermined deceleration gradient to stop when the stop is instructed before the power supply from the power source is restored. The device for winding up a long object according to claim 7, wherein: 9. The supply-side rotator comprises a plurality of rotators, the first motor comprises a plurality of motors that rotate the plurality of rotators, respectively, and the first controller controls the plurality of rotators. The winding device for a long object according to any one of claims 1 to 4, comprising a plurality of control units that respectively drive the motors.