JPH11256440A - Apparatus for treating power failure in multiple twister - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for treating power failure capable of decelerating and stopping spindle driving system motors and drum driving system motors while synchonizing both with simple control at the time of the power failure. SOLUTION: This apparatus 7 for treating power failure of a multiple twister 1 drives the plural spindle driving motors 6 installed for each spindle and the winding drum driving motors 4 common to the plural spindles with inverters 42 and 45, respectively. The apparatus 7 is equipped with a power failure detecting means 34 for detecting the power failure when the voltage is reduced by a prescribed value or above, stop commanding means 35, 46, 44 and 51 for outputting stop commands to respective inverters 42 and 45 when detecting the power failure and the stopping means 42 and 9 for performing feedback control so as to stop each of motors 4 and 6 at a predetermined stopping time based on the stop commands.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power failure processing device provided in a yarn winding machine for twisting and winding a yarn unwound from a yarn supply package, and more particularly to a power failure capable of preventing strong twisting during a power failure. It relates to a processing device.

[0002] As shown in FIG.
A plurality of multi-twist units having a spindle device 101a and a winding device 101b are provided. The multi-twist unit includes a winding drum 106, a traverse guide 107, and a drive mechanism 110 for driving the spindle 103. The spindle device 101a includes a belt 104
By transmitting the driving force of the driving motor 113 to the spindle 103, the yarn is twisted. Further, the winding device 101b winds the yarn twisted by the spindle device 101a around the winding package 105 while traversing the traverse guide 107 via the feed roller 108.

The driving mechanism 110 mainly includes a driving motor 113 and a plurality of pulleys 111, 112, 115, 11
6, 117 and 119 and belts 104 and 118, and the winding drum 106, the traverse guide 107, and the spindle 103 are driven by one drive motor 113. Note that the spindle 103 has an output shaft 114, a third pulley 115,
The power is transmitted to the traveling belt 104 via the belt 118, the fifth pulley 117, and the first pulley 111 to be driven. The output of the drive motor 113 is output shaft 114, fourth pulley 116, belt 12
0, the sixth pulley 119, the speed change belt device 150, the speed reduction box 123, and the belt 130. Further, the traverse guide 107
The rotation of the support shaft 126 is transmitted to the grooved drum 137 via the belt 134, and the cam shoe 139 moves along the groove 138 due to the rotation of the grooved drum 137, so that the cam shoe 139 reciprocates.

However, when the spindle device 101a and the winding device 101b are driven by one drive motor 113 as in a conventional multiple twisting machine, a plurality of pulleys are rotated by the belts 104 and 120, resulting in a large mechanical loss. Due to excessive power consumption, a multiple twisting machine has been developed in which the spindle drive system and the winding drum drive system are driven by separate motors. However, in a multiple twisting machine in which the spindle drive system and the winding drum drive system are driven by separate motors, when each motor stops (when each motor is braked) during a power failure, the moment of inertia of the spindle drive system is increased. Since the moment of inertia of the take-up drum drive system is much larger than that of the take-up drum drive system, the spindle drive system motor rotates for a while after the take-up drum drive system stops, resulting in twisting due to strong twist. Problems have arisen.

[0005] Therefore, a multiple twisting machine has been developed which can prevent twisting breakage by synchronizing the spindle drive motor and the drum drive system motor at the time of a power outage and decelerating and stopping.

[0006]

However, in the above-described multiple twisting machine, the winding drum and the traverse device are also driven by separate motors. It is necessary to completely synchronize the traverse device and the spindle drive system, and there is a problem that high-level control is required.

Accordingly, the present invention has been made in view of the above problems, and has as its object to reduce the speed of a spindle drive system and a drum drive system while synchronizing them by simple control during a power failure. It is to provide a power failure processing device that can be stopped.

[0008]

According to the first aspect of the present invention,
In a power failure processing device of a multiple twisting machine that drives a plurality of spindle drive motors provided for each spindle and a winding drum drive motor common to a plurality of spindles by an inverter,
A power failure detection means for detecting a power failure when a voltage lower than a certain level is detected, a stop command means for outputting a stop command to each inverter when a power failure is detected, and a stop time preset for each of the motors based on the stop command. And a stopping means for performing feedback control so as to stop the motor. As a result, after a power failure is detected due to a drop in the power supply voltage for a predetermined time or more, feedback control is performed while independently detecting the number of rotations of each motor until each motor is stopped. It is possible to eliminate the necessity of transmission / reception of a rotation speed signal and an external rotation speed command means for each inverter, and the motors can be decelerated and stopped by synchronizing the respective motors with simple control.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a common DC bus in which a plurality of inverters for the spindle drive motors are arranged along the direction in which the multiple twisting machines are arranged. And an inverter for the winding drum drive motor is connected to the DC bus. By appropriately setting the stop time of each motor at the time of power failure detection, the DC voltage of the DC bus rises due to regenerative power generated from the spindle drive motor having a large inertia at the time of deceleration. Can be used to perform feedback control by the inverter for the winding drum drive motor. Therefore, each motor can be decelerated and stopped in synchronization without using a special external power supply.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, when a power failure is detected, the inverter for the winding drum drive motor and the inverter for each spindle drive motor are provided. A central control device for transmitting a stop command all at once via a control signal line is provided. Thus, when a power failure is detected, each inverter receives a stop command from the central control device and simultaneously decelerates to a stop with the same stop time, so that the central control device only needs to transmit a stop command to each inverter. With simple control, each motor can be decelerated and stopped while synchronizing. In addition, a battery or a battery for controlling the central control device during the power failure process can be eliminated.

According to a fourth aspect of the present invention, in addition to the configuration of the second or third aspect, the stopping means has a unit control section divided for each inverter group for the spindle drive motor. In each of the unit control units, a control power supply line common to a plurality of inverters belonging to the inverter group is provided, and a control system voltage on the control power supply line is converted from a voltage on the DC bus. It is characterized in that an auxiliary power supply including a DC transformer for forming is provided. Thereby, during the deceleration period after the detection of the power failure, the regenerative power from each spindle drive motor obtained through the power supply line can be converted into an appropriate voltage and used as a control system voltage for each inverter group. In addition, since a DC transformer is provided for each inverter group, simplification of wiring and voltage drop can be prevented, and deceleration control of each inverter can be reliably performed.

According to a fifth aspect of the present invention, in addition to the configuration of the first aspect, each of the spindle drive motors is provided with a stator portion disposed around a rotor which is a permanent magnet. And a brushless motor having a built-in sensor for detecting the rotational position of the rotor. With this, a sensor for detecting the rotational position of the rotor is built in the motor,
Rotation control of the motor can be performed by reliably preventing erroneous detection due to fly waste or the like. Further, by using a brushless motor, miniaturization and high efficiency of each motor can be achieved.

Further, the power supply device includes a power storage means (capacitor) for storing regenerative electric power, and the regenerative electric power of each inverter group is stored by the electric power storage means in each power supply apparatus, thereby providing a control system. Voltage can be secured for a longer time, and control of each motor after power failure detection can be performed more reliably.

The take-up drum drive motor also drives a traverse device for traversing the yarn. By mechanically connecting the take-up drum and the traverse device, it controls the synchronization between the two after a power failure is detected. It is possible to prevent the occurrence of twill drop and stick winding.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the multiple twisting machine 1 is configured such that a yarn winding unit U having a weight of 80 to 308 is arranged in a line. The one-weight yarn winding unit U has a spindle device 2 and a winding device 3 provided on the spindle device 2 so as to wind the yarn of the single yarn supply package 8 onto the winding package P. I have.

The spindle device 2 includes a yarn supply package 8, a stationary platen 31, a tension device 32, a rotating disk 33, and a spindle drive motor 6, and the yarn Y is driven by the spindle drive motor 6. It is twisted. This spindle drive motor 6 has a DC
A brushless motor BLM is used, and a rotating disk 33 is provided on an output shaft thereof. The rotating disk 33 is provided with a stationary platen 31 so that one yarn supply package 8 can be placed on the stationary platen 31. Further, a tension device 32 is provided above the yarn supply package 8, and a tension device 3 is provided.
Numeral 2 applies a predetermined tension to the yarn Y unwound from the yarn supply package 8.

Thus, the spindle device 2 rotates the rotating disk 33 by the driving motor 6 at a high speed while applying tension to the yarn Y unwound from the yarn supply package 8 while putting the yarn Y into the tension device 32. Balloon guide 3
It is designed to balloon up to 7. Further, the yarn Y is twisted once from the tension device 32 to the rotating disk 33, and again twisted from the rotating disk 33 to the balloon guide 37.

The winding device 3 has a winding drum 21, a winding package P, a traverse guide 29, a feed roller 26, and a cradle 40, as shown in FIG. The yarn Y twisted at 2 is wound around a winding package P. The winding package P is rotatably supported by the cradle 40, and the winding drum 21 is pressed against the winding package P. Thereby, the winding device 3 applies the yarn Y twisted twice in total as described above to the balloon guide 3.
From 7, the traverse guide 29 traverses through guide rollers 38 and 39 and the feed roller 26, and winds up the winding package P.

The above-described multiple twisting machine has a structure as shown in FIG.
In addition to the above-described yarn winding unit U, a drive system 5 for collectively driving each winding device 3 and a control system 7 for controlling each spindle device 2 and each winding device 3 are provided. The drive system 5 includes a winding drum drive motor 4 and a first pulley 10
, Belt 13, second pulley 12, reduction gear 11,
Third pulley 16, continuously variable transmission 17, fourth pulley 19
, Belt 20, fifth pulley 22, sixth pulley 24
And a cam box 27, so that the winding drum 21 and the feed roller 26 of each yarn winding unit U are rotated by the driving force of the winding drum drive motor 4, and the traverse guide 29 is reciprocated. Has become.

The take-up drum drive motor 4 is an induction motor IM. The output shaft of the take-up drum drive motor 4 is provided with a first pulley 10 and a second pulley 12 via a belt 13. The speed reducer 11 has a plurality of gears (not shown). When the driving force of the winding drum drive motor 4 is transmitted through the second pulley 12, the speed reducer 11 decelerates at a fixed rate and simultaneously changes the rotation direction. It is designed to convert. Further, the speed reducer 11 has two output shafts 14 and 15, and has one axis input and two axis output.
Is fitted with a third pulley 16, and the other output shaft 15
It is connected to a continuously variable transmission 17 for changing the twill angle.

The third pulley 16 is provided with a fourth pulley 19 fitted on a support shaft 18 via a belt 20, and a plurality of winding drums 21 are mounted on the support shaft 18 at predetermined intervals. Are provided at intervals. In addition, the above support shaft 1
8 is fitted with a fifth pulley 22 in parallel with the fourth pulley 19. The fifth pulley 22 is provided with a sixth pulley 24 fitted to a support shaft 23 via a belt 25, and a plurality of feed rollers 26 are provided on the support shaft 23 at predetermined intervals. Is provided. By this
The drive system 5 outputs the driving force decelerated by the speed reducer 11,
The power is transmitted to each winding drum 21 via the third pulley 16, the belt 20, and the fourth pulley 19, and the fifth pulley 22,
Feed roller 2 via belt 25 and sixth pulley 24
6.

The above-described continuously variable transmission 17 is connected to a cam box 27 for converting a rotational force into a reciprocating motion. A reciprocating rod 28 is connected to the cam box 27, and a traverse guide 29 is fitted to the reciprocating rod 28 at a predetermined interval. Thereby, the drive system 5
By reciprocating the traverse guide 29,
The yarn Y twisted by the spindle device 2 is wound on a winding package P which rotates while being pressed against the winding drum 21 while traversing the yarn Y.

The above-mentioned control system 7, as shown in FIG.
In addition to the control of the spindle device 2 and the winding device 3 described above, the device also serves as a power failure processing device 7. This power failure processing device 7
Has a main unit controller 48 and a plurality of unit controllers 9 for controlling each spindle device 2. When the voltage of the AC power supply 36 decreases for a predetermined time, a power failure process is performed. . The main body controller 48 includes a converter 41 for converting the voltage of the AC power supply 36, a host CPU 35 (central control unit) constituting stop command means, a power failure detector 34 constituting power failure detection means, and a winding drum. And an inverter 42 constituting stop means for the drive motor, and simultaneously outputting a stop command to each unit control section 9 constituting the stop means and the inverter 42 for the take-up drum drive motor. I have.

The power failure detector 34 is connected to the host CPU 3
5, when the voltage of the AC power supply 36 is detected to have dropped for a predetermined time or more, a power failure detection signal is transmitted to the host CPU 35. Host CPU 35
When the power failure detection signal is received, the control signal line 53
A stop command is simultaneously transmitted directly to each unit control unit 9 and the inverter 42 for the winding drum drive motor via the CPU. The converter 41 has an AC / DC converter 41a and a DC / DC converter 41b. The inverter 42 for the winding drum drive motor is connected to the AC / DC converter 41a via a DC bus 47. Is connected. The DC / DC converter 41b includes a host CPU 35
Is connected, and the DC / DC converter 41b converts the DC voltage into a voltage of 24V for use as a control system voltage of the host CPU 35.

Each unit control section 9 has 32 inverters 45 for the spindle drive motor and one relay 44
And one auxiliary power supply device 43, and are connected in parallel to a main body control device 48 via a communication line 46. To the repeater 44, 32 inverters 45 are further connected in parallel via a communication line 51.
Numeral 4 receives parameters output from the host CPU 35 via the communication line 46 and transmits the parameters to the 32 inverters 45 via the communication line 51. Conversely, the repeater 44 receives the rotation speed of the spindle drive motor 6 and the command value for the spindle drive motor 6 output from each inverter 45, and
The command value is transmitted to the host CPU 35 via the.

The 32 inverters 45 constituting each unit control section 9 are connected in series via a control power supply line 49, a control signal line 50 and a communication line 51. A relay connector board 52 is interposed between the 32 inverter groups and the auxiliary power supply 43, and the control power supply line 49 is connected to the inverter group and the relay via the relay connector board 52 from the auxiliary power supply 43. Connected to the vessel 44. In addition, as in the case of the DC bus 47, the host C
A control signal line 50 arranged along the machine base from the PU 35 is connected to the inverter group and the repeater 44 via a relay connector board 52. Also, two spindle drive motors 2 are connected to each inverter 45. Each inverter 45 has a regenerative circuit, and outputs regenerative electric power generated by rapidly decelerating the spindle drive motor 6 at the time of a power failure to the DC bus 47 which is a power supply line. A predetermined stop time is set in each inverter 45 in advance.

The regenerative electric power is generated because the spindle drive motor 6 has a large inertia (moment of inertia) at the time of a power failure and is designed to function as a so-called generator in order to rapidly decelerate.

The auxiliary power supply 43 is connected to each unit controller 9.
One unit is provided for each unit, and they are connected in parallel via a DC bus 47. The auxiliary power supply device 43 has a DC transformer 43a, and converts the DC voltage supplied via the DC bus 47 to 24 V necessary for controlling the spindle drive motor 6 during normal operation and during a power failure. The voltage is converted into a control system voltage and supplied to an inverter group. Then, a voltage of 24 V is applied to each of the 32 inverters 45 via the control power supply line 49.
Is supplied. Further, the auxiliary power supply device 43 includes a capacitor 43b that constitutes a power storage unit.
And the regenerative power can be stored so that the control system voltage can be secured for a longer time.

Each inverter 45 is connected to a control signal line 5.
After receiving the stop command via the control signal 0, each spindle drive motor 6 is independently feedback-controlled by the control system voltage of the auxiliary power supply 43, and the spindle drive motor 6 is controlled by a preset stop time. It is designed to decelerate to a stop. After receiving the stop command via the control signal line 53, the inverter 42 for the winding drum drive motor uses the DC voltage of the DC bus 47 secured by the regenerative power from the motor 6 to control the winding drum drive motor. 4 is independently feedback-controlled, and the winding drum drive motor 4 is decelerated and stopped at a predetermined stop time set in advance. That is, each of the inverters 42 and 45 is separately provided with each of the motors 4 and 6.
Is decelerated and stopped. Incidentally, the inverter 42 for the winding drum drive motor has a DC transformer (not shown) for forming a control system voltage therein.

As described above, in the power failure processing device 7 according to the present embodiment, the main body control device 48 includes the spindle drive motor 6
Instead of taking in the number of rotations of the motor 4 and the number of rotations of the winding drum drive motor 4 and controlling the two motors 4 and 6 to synchronize, the motors 4 and 6 are controlled separately. Therefore, it is not necessary to exchange the number of rotations of the spindle drive motor 6 and the number of rotations of the take-up drum drive motor 4, simplify the wiring, and do not require sophisticated control.

The operation of the single weight type multiple twisting machine 1 in the above configuration will be described with reference to the drawings. As shown in FIG.
When power is supplied from the AC power supply 36 to the inverter 45 for the spindle drive motor via the converter 41 and the DC bus 47, the spindle drive motor 6 is driven, and each rotating disk 33 is the same as each spindle drive motor 6. Rotate at the speed. When each rotary disk 33 rotates, the yarn Y unwound from the yarn supply package 8 enters the tension device 32, is twisted once while applying tension, and is twisted once more and ballooned to the balloon guide 37. You.

On the other hand, when power is supplied to the inverter 42 for the take-up drum drive motor via the DC bus 47, the take-up drum drive motor 4 is driven and its output is
0 ・ 12 ・ 16 ・ 19 ・ 22 ・ 24 、 Belts 13 ・ 20
25, the reduction gears 11, the continuously variable transmission 17, and the cam box 27 are transmitted to the support shafts 18 and 23 and the reciprocating rod 18 through the winding drum 21 and the feed roller 26 of each weight.
Rotates, and the traverse guide 29 of each weight reciprocates.

When the winding drum 21 of each weight and the feed roller 26 rotate and the traverse guide 29 of each weight reciprocates, the yarn Y twisted twice by the spindle device 2 is moved to the traverse guide 29. Is wound around the winding package P while being traversed. In the traverse, the traverse angle is corrected by the continuously variable transmission 17.

As described above, while the yarn Y is being wound on the winding package P, as shown in FIG.
Detects a drop in the power supply voltage (S1, YES), the host CPU 35 determines whether the drop has occurred for a predetermined period (for example, 1 msec) or more (S2). For a predetermined period (for example, 1 ms
ec) or less (S2, NO), since the power outage time is short, there is no problem in the operation of the multiple twisting machine 1, and each device 2, 3
A predetermined return operation is performed (S3), and normal operation is continued.

On the other hand, in S2, a predetermined period (for example,
1 msec) or more (S2, YES), the stop command is sent from the host CPU 35 to the winding drum drive motor inverter 42 and the relay connector board 52 provided in each unit control unit 9 via the control signal line 53. Sent all at once. Then, the stop command is simultaneously transmitted from the relay connector boards 52 to the inverters 45 via the control signal lines 50 (S4). Each inverter 4
After receiving the stop command, the power supply from the AC power supply 36 to the spindle drive motor 6 and the winding drum drive motor 4 is stopped.

Since the spindle drive motor 6 has a large inertia even when the power supply is stopped, the spindle drive motor 6 functions as a generator by being rapidly decelerated for stopping at the predetermined stop time, thereby generating regenerative power. This regenerative electric power is output from the regenerative circuit of each inverter 45 to a DC bus 47 which is a power supply line for power, and a part of the regenerative electric power is transmitted through the auxiliary power supply device 43 and the control power supply line 49 to the spindle driving motor 6. Is supplied to each inverter 45 as a control system voltage. The other regenerative power is supplied as a control system voltage from a DC bus 47, which is a power supply power line, to a DC transformer (not shown) inside the inverter 42 for the winding drum driving motor.

Thus, each of the inverters 45 is incorporated in a stator portion disposed around the rotor, and the spindle drive motor is driven based on the rotation speed detected by the built-in Hall sensor for detecting the rotation position of the rotor. The spindle drive motor 6 is decelerated and stopped at a predetermined stop time while independently performing feedback control with the spindle drive motor 6.
Further, the inverter 42 for the winding drum drive motor receives the rotation speed of the winding drum drive motor 4 from the pulse generator 30 provided separately from the winding drum drive motor 4 and The take-up drum drive motor 4 is decelerated and stopped for a predetermined stop time while independently performing feedback control between the motors (S5). Then, the spindle drive motor 6 and the take-up drum drive motor 4 decelerate synchronously and stop simultaneously after a predetermined stop time has elapsed (S6).

The control power supply line 49 of the multiple twisting machine 1 according to this embodiment is for supplying a control system voltage (24 V) for controlling the spindle drive motor 6 to each inverter 45. Also, the control signal line 50
Reference numeral 53 is for transmitting a stop command to all the inverters 42 and 45 when a power failure is detected, and for transmitting a simultaneous start or simultaneous stop signal of a normal machine. Further, the communication lines 46 and 51 communicate the number of rotations of each motor 6 and the command value for each motor 6 with the host CPU 3.
5 for setting parameters for control of the inverters 42 and 45 from the host CPU 35.

In the multiple twisting machine 1 according to the present embodiment, the winding drum 21 and the draft mechanisms 28 and 29 are mechanically connected by a cam box 27, and they are shared by a common winding drum drive motor. 4 for driving.

Incidentally, in the multiple twisting machine 1 according to the present embodiment,
Although the double twisting machine in which the twisting is performed twice by one rotation of the spindle device 2 has been described, another triple or quadruple twisting machine may be used.

[0041]

According to the first aspect of the present invention, there is provided a power failure processing device for a multiple twisting machine in which a plurality of spindle drive motors provided for each spindle and a winding drum drive motor common to a plurality of spindles are each driven by an inverter. Power failure detection means for detecting a power failure when the voltage of the motor drops, stop command means for outputting a stop command to each inverter when a power failure is detected, and stopping for each of the motors for a predetermined stop time based on the stop command. And a stopping means for performing feedback control so as to perform the feedback control. As a result, after a power failure is detected due to a drop in the power supply voltage for a predetermined time or more, feedback control is performed while independently detecting the number of rotations of each motor until each motor is stopped. It is possible to eliminate the necessity of transmission / reception of a rotation speed signal and an external rotation speed command means for each inverter, and to effect deceleration stop by synchronizing each motor with simple control.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a common DC bus in which a plurality of inverters for spindle drive motors are arranged along the direction in which the multiple twisting machines are arranged. Connected, and an inverter for the winding drum drive motor is connected to the DC bus. By appropriately setting the stop time of each motor at the time of power failure detection, the DC voltage of the DC bus rises due to regenerative power generated from the spindle drive motor having a large inertia at the time of deceleration. Can be used to perform feedback control by the inverter for the winding drum drive motor. Therefore, there is an effect that each motor can be decelerated and stopped in synchronization without using a special external power supply.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the present invention, when a power failure is detected, an inverter for the winding drum drive motor and an inverter for each spindle drive motor are provided. This is a configuration including a central control device that simultaneously transmits a stop command via a control power supply line. Thus, when a power failure is detected, each inverter receives a stop command from the central control device and simultaneously decelerates to a stop with the same stop time, so that the central control device only needs to transmit a stop command to each inverter. This has the effect that the motors can be decelerated and stopped with simple control while synchronizing the motors. Further, there is an effect that a battery or a battery for controlling the central control device during the power failure process can be dispensed with.

According to a fourth aspect of the present invention, in addition to the configuration of the second or third aspect, the stopping means has a unit control section divided for each inverter group for the spindle drive motor. In each of the unit control units, a control power supply line common to a plurality of inverters belonging to the inverter group is provided, and a control system voltage on the control power supply line is converted from a voltage on the DC bus. This is a configuration in which an auxiliary power supply device including a DC transformer for forming is provided. Thereby, during the deceleration period after the detection of the power failure, the regenerative power from each spindle drive motor obtained through the power supply line can be converted into an appropriate voltage and used as a control system voltage for each inverter group. Further, since the DC transformer is provided for each inverter group, simplification of wiring and voltage drop can be prevented, and there is an effect that deceleration control of each inverter can be reliably performed.

According to a fifth aspect of the present invention, in addition to the structure of any of the first to fourth aspects, each of the spindle drive motors has a stator portion disposed around a rotor which is a permanent magnet. And a brushless motor having a built-in sensor for detecting the rotational position of the rotor. Thus, the sensor for detecting the rotational position of the rotor is built in the motor, so that erroneous detection due to fly waste or the like can be reliably prevented, and the rotation of the motor can be controlled. Further, by using the brushless motor, there is an effect that downsizing and high efficiency of each motor can be achieved.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a multiple twisting machine according to an embodiment.

FIG. 2 is a diagram illustrating a winding device and a spindle device.

FIG. 3 is a block diagram illustrating a power failure processing device according to the embodiment.

FIG. 4 is a flowchart illustrating an operation of the power failure processing device according to the present embodiment.

FIG. 5 is a diagram illustrating a conventional multiple twisting machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multiple twisting machine 2 Spindle drive device 3 Winding device 4 Winding drum drive motor 5 Drive system 6 Spindle drive motor 7 Control system 9 Unit control unit 30 Pulse generator 34 Power failure detector 35 Host CPU 36 AC power supply 41 Converter 42 Inverter 43 Auxiliary power supply 43a DC transformer 43b Capacitor 44 Repeater CPU 45 Inverter 46 Communication line 47 DC bus as power supply line 48 Main body control unit 49 Control power supply line 50 Control signal line 51 Communication line 52 Relay connector board 53 Control signal line

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H02P 6/24 H02P 7/80 6/04 6/00 331F 7/80 6/02 301

Claims (5)

[Claims] 1. A power failure processing device for a multi-twisting machine in which a plurality of spindle drive motors provided for each spindle and a plurality of spindle common winding drum drive motors are respectively driven by an inverter. Power failure detection means for detecting, stop power means for outputting a stop command to each inverter when a power failure is detected, and performing feedback control so as to stop each of the motors for a predetermined stop time based on the stop command. And a stopping means. 2. An inverter for a plurality of spindle drive motors is connected to a common DC bus arranged along a direction in which multiple twisting machines are arranged, and an inverter for a winding drum drive motor is connected to the DC bus. The power failure treatment device in the multiple twisting machine according to claim 1, wherein 3. The central control means for simultaneously transmitting a stop command to a winding drum drive motor inverter and each spindle drive motor inverter via a control signal line when a power failure is detected. The power failure treatment device in the multiple twisting machine according to claim 1 or 2, further comprising a device. 4. The stopping means has a unit control unit divided for each of a group of inverters for the spindle drive motor, wherein each of the unit control units is common to a plurality of inverters belonging to the group of inverters. 3. A control power supply line according to claim 2, further comprising an auxiliary power supply including a DC transformer for forming a control system voltage on the control power supply line from the voltage on the DC bus. Or a power failure treatment device in the multiple twisting machine according to claim 3. 5. Each of the spindle drive motors is a brushless motor which is incorporated in a stator portion disposed around a rotor which is a permanent magnet and has a built-in sensor for detecting a rotational position of the rotor. The power failure processing device in the multiple twisting machine according to any one of claims 1 to 4.