JP2002105779A - Maintenance assisting method for spinning machine and system therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance assistance method for a spinning machine equipped with a number of spindles such as a ring fine spinning frame, capable of cutting maintenance operation time through omitting unnecessary maintenance operation in making a regular maintenance operation and also capable of surely informing a relevant operator of spindle(s) for which specific maintenance operation(s) is unnecessary. SOLUTION: This method comprises the following practice: in a spinning machine equipped with a number of spindles, spindle(s) for which specific maintenance operation(s) is necessary is (are) specified based on the histories (e.g. yarn breakage frequency, load abnormalities) for the respective spindles in their past operations until a regular maintenance action; in halting a machine frame for the regular maintenance action, a command for actuating the corresponding informative device(s) for the spindle(s) needing maintenance operation(s) is outputted from a machine frame control unit to effect actuating the informative device(s); a relevant operator then confirms spindle(s) for which the corresponding informative device(s) is (are) actuated and makes the specific maintenance operation(s) only for the spindle(s) is question.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance support method and apparatus for a spinning machine such as a ring spinning machine and a ring twisting machine equipped with a large number of weights.

[0002]

2. Description of the Related Art A spinning machine such as a ring spinning machine or a ring twisting machine is equipped with several hundred to one thousand spindles per machine. In the spinning factory, the machine is regularly maintained at a predetermined cycle (for example, one month) in order to smoothly operate the machine. Items of the maintenance work include cleaning of the machine base, centering of the spindle, refueling, and replacement of consumables (for example, aprons).

Further, in this type of spinning machine, there has been proposed a monitoring system for a spinning machine in which each thread is provided with a thread breakage detecting means so that the thread breakage weight can be monitored (for example, JP-A-7-48738). .

[0004]

The maintenance work is performed by a plurality of personnel in order to shorten the machine stop time as much as possible and to increase the operating rate of the machine. Among the items of the maintenance work, cleaning of the machine base, refueling, and replacement of consumables need to be performed on all the weights, but the centering work of the spindle is not always necessary for all the weights. The centering of the spindle is required for the spindle with misalignment of the spindle, and the centering work is not required for the weight without misalignment. Since it is difficult for an operator to accurately judge whether or not the work is performed, the centering work is performed on all the weights. Therefore, there is a problem that not only the burden on the operator increases, but also the maintenance work takes time, the machine stoppage time becomes longer, and the operating rate of the machine lowers.

The present invention has been made in view of the above-mentioned problems, and a first object of the present invention is to provide a spinning machine equipped with a large number of weights such as a ring spinning machine with unnecessary maintenance work during regular maintenance work. A second object of the present invention is to provide a maintenance support method for a spinning machine that can save maintenance work time by shortening the maintenance work time and can surely notify a maintenance worker of a spindle that does not require a specific maintenance work. And to provide a maintenance support device suitable for implementing the above.

[0006]

In order to achieve the first object, according to the first aspect of the present invention, in a spinning machine equipped with a large number of weights, a notifying device is provided for each of the weights, and up to periodic maintenance. The weight which needs a specific maintenance work is specified from the history of each weight at the time of the past operation, and the notification device of the weight which needs the maintenance work is driven when the machine base is stopped for periodic maintenance.
“Specific maintenance work” is, for example, centering work.

According to the present invention, at the time of the periodic maintenance work, the notification device of the weight requiring a specific maintenance work is driven from the history of each weight during the past operation. The maintenance worker confirms the weight on which the notification device is driven, and performs a specific maintenance work only on the weight. Therefore, unlike the related art, unnecessary maintenance work is not performed, so that the machine stoppage time due to periodic maintenance can be reduced, and the operating rate of the machine is improved. In addition, the burden on maintenance workers can be reduced.

According to a second aspect of the present invention, in the first aspect of the invention, each of the weights is provided with a thread breakage detecting means, and the weight of each of the weights requiring the specific maintenance work is specified. This is performed based on the number of cuts. According to the present invention, the weight whose number of thread breaks is equal to or more than the predetermined number is determined to be an irregular weight. Therefore, in the spinning machine provided with the yarn breakage detection monitor, the monitor device can be used for determining the irregular weight.

According to a third aspect of the present invention, in the first aspect, the spindle of each weight is independently driven by a motor provided for each weight, and the history of each weight is stored in each weight. Obtained by a control signal used to control the motor drive of the motor.

According to the present invention, the history of each weight is obtained from a control signal used for controlling the motor drive of each weight, for example, a voltage, a rotation speed, an internal calculation value in a computer, and the like.
Therefore, it is possible to appropriately select a weight that requires specific maintenance.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the spindle of each of the weights is independently driven by a motor provided for each of the weights. An apparatus and current detecting means for detecting a current supplied to each motor are provided, and the weight which requires the specific maintenance work is specified based on a current value supplied to each motor.

According to the present invention, an improper weight is determined based on the current value supplied to the motor of each weight. Based on the change in the current value, it is possible to determine the presence / absence of yarn breakage and the presence / absence of abnormal load. Therefore, it is possible to more appropriately select a weight requiring specific maintenance.

[0013] In order to achieve the second object, according to a fifth aspect of the present invention, there is provided a spinning machine equipped with a large number of weights and independently driving a spindle of each weight by a motor provided for each weight. A motor control device provided for each of the motors, a notification device provided for each of the weights, a current detection means for detecting an amount of current supplied to each of the motors, and a current detection means for each of the weights Determining means for determining whether or not each weight is an unbalanced weight based on the detection signal, and a maintenance means for outputting a drive command to the notification device of the weight determined to be an unbalanced weight by the determination means when the maintenance of the machine is stopped. Weight command means.

In the present invention, the spindle of each weight is driven by a motor provided for each weight, and a current is supplied to each motor from a motor control device provided for each weight. The amount of current supplied to each motor is detected by the current detection means, and based on the detection signal, the determination means determines whether each weight is an irregular weight. Then, when the notification device of the weight determined to be the incorrect weight is stopped for maintenance of the machine base,
It is driven by the maintenance weight command means. Therefore, it is possible to more appropriately select a weight requiring specific maintenance.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the notification device functions as a yarn break notification device during a spinning operation of the machine stand. Therefore, according to the present invention, in a single-spindle drive type spinning machine in which the yarn breakage notifying means is provided on the weight, it can be implemented with a slight modification.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention embodied in a single spindle drive type ring spinning machine in which each spindle is provided with a spindle drive motor will be described below with reference to FIGS.

As shown in FIG. 2A, each spindle 1 of the spinning machine is provided with a spindle driving motor (hereinafter referred to as a spindle motor) 2. As the spindle motor 2, a synchronous motor is used. Each spindle motor 2 has a spindle control device 4 (shown in FIGS. 2B and 3) as a motor control device in a housing 3. AC / DC converter (neither shown) for commercial power supply to the spindle control device 4
Is supplied.

As shown in FIG. 2B, the spindle control device 4 includes an inverter 5 and a control unit 6. The control unit 6 includes a CPU 7 and a memory 8. An arbitrary one of the three power supply lines connecting the inverter 5 and the spindle motor 2 is provided with a current sensor 9 as current detecting means for detecting the amount of current supplied to each spindle motor 2. The CPU 7 inputs the output of the current sensor 9 via an A / D converter and an interface (neither is shown). The CPU 7 stops supplying power to the spindle motor 2 of the spindle when the thread breaks. CP
U7 confirms (detects) thread breakage with a signal from a machine control device described later.

The housing 3 is provided with a display unit 10 as an alarm device. An LED (light emitting diode) is used for the display unit 10, and the display unit 10 is provided on the front surface of the housing 3 as shown in FIG. Also,
The housing 3 is provided with a switch 11 for instructing start and stop of the spindle motor 2.

The total weight of the spinning frame is divided into a plurality of groups, and as shown in FIG.
(48 weights) as one group, each of which is connected to the section control unit 12 via the communication line 13. Each section control unit 12 is connected via a communication line 13 to a machine control device 14 that controls the entire weight. The communication line 13 employs a multi-drop connection using a serial interface. For example, RS-485 is used as a serial interface. Each section control unit 12 is a control unit 6 of a group connected to the section control unit 12.
, And the transmission and reception of signals between the machine controller 14 are relayed.
The output of the current sensor 9 provided for each weight is input to each control unit 6 at a predetermined time based on a command from the machine control device 14, and the measurement data is sent to each section control unit 1
2 is transmitted to the machine controller 14 as digital current value data.

The machine control unit 14 constitutes a maintenance weight commanding means, and a CPU 15 and a ROM 1 as a judgment means.
6, a RAM 17, an input device 18, an input / output interface 19, and a display 20. The CPU 15 is connected to a winding amount detecting means 21 via an input / output interface 19. A counter that accumulates the number of rotations of a front roller (not shown) is used for the winding amount detection unit 21.
The CPU 15 calculates the winding amount at that time from the count value.

Each machine control device 14 (only one is shown in FIG. 3) is connected to a host computer 23 via a local area network (LAN) 22. The host computer 23 includes a CPU 24, a ROM 25, and a RAM 26 that constitute a maintenance weight commanding unit and a determining unit. An input device 27 and a color display 28 are connected to the host computer 23 via an input / output interface (not shown).

The ROM 16 of the machine control device 14 stores program data and various data necessary for executing the program data. The program data includes various fiber raw materials, spun yarn counts, number of twists, and other spinning conditions, as well as data on the correspondence between the spindle rotation speed during steady operation, the rotation speed of the draft drive system and the lifting drive system motor, and various other data. There is a map or the like showing the relationship between the number of rotations and the amount of supply current at the winding amount of. This map differs depending on the spinning conditions, and is obtained by performing a spinning test in advance or theoretically. The RAM 17 temporarily stores data input by the input device 18, results of arithmetic processing by the CPU 15, and the like.

The CPU 15 inputs the measurement data of the current sensor 9 of each weight via each control section 6 and each section control unit 12, and uses the same method as the yarn breakage detecting device disclosed in Japanese Patent Application Laid-Open No. 11-181636. Thus, the presence or absence of thread breakage of each weight is determined at predetermined time intervals. Then, the CPU 15 outputs a thread break notification signal via the section control unit 12 to the weight determined to be broken.

The CPU 15 measures the number of thread breaks of each weight from the start of the operation of the machine to the stop of doffing (doff) for each weight. A storage area for storing the number of thread breaks is provided in the RAM 17 for each weight, and the CPU 15 accumulates and stores the number of thread breaks in the corresponding area for the weight in which the thread break has occurred. When the number of thread breaks within a predetermined period (within one doff in this embodiment) exceeds a predetermined number of times Nα, the CPU 15 determines that the weight is an irregular weight. The CPU 15 outputs the integrated value to the host computer 23 every one doff and resets the integrated value to zero.

The host computer 23 receives information such as thread breakage information of each spindle from each machine control device 14. The thread break information includes the presence or absence of a thread break and the total number of thread breaks for each spindle. The CPU 24 stores the accumulated number of thread breaks for each machine inputted from each machine control device 14 in each storage area provided in the RAM 26. After the completion of the periodic maintenance, the CPU 24 resets the accumulated number of thread breakage to zero before restarting the machine base. C
When the machine stand is stopped for the regular maintenance, the PU 24 determines that the weight whose total number of thread breaks is larger than a predetermined number is the irregular weight. Also, C
The PU 24 receives the current measurement data of each weight from each machine control device 14 and determines from the data whether or not the load state of each weight is normal.

Next, the operation of the device configured as described above will be described. Prior to the operation of the spinning machine, spinning conditions such as a fiber material, a spun yarn count, and a number of twists are input to the machine controller 14 by the input device 18. When the operation of the spinning machine is started, the control unit 6 of each spindle controls the spindle motor 2 via the inverter 5 at a predetermined rotational speed in accordance with the spinning conditions based on a command from the machine control device 14. Is controlled so that

The CPU 15 of the machine control device 14 inputs the measured current value data of the current sensor 9 of each weight via the control unit 6 and the section control unit 12 at predetermined time intervals, and based on the value, outputs the data of each weight. Judge whether there is a thread break. Then, a thread breakage signal is output to the weight determined to be a thread breakage, and 1 is added to the count value in the thread breakage frequency accumulation area.
When each control unit 6 receives the thread break signal, it turns on the display unit 10 and stops the spindle motor 2.
The CPU 15 compares the total number N of thread breaks of each weight with a predetermined number Nα, and when the total number N of thread breaks exceeds a predetermined number Nα,
The weight is determined to be an irregular weight.

An operator performs a splicing operation on the thread breakage weight. The switch 11 is used when the operator restarts the weight after the completion of the piecing operation. When spinning is continued and the vessel is full, the operation of the machine is stopped. Then, a doffing operation by a doffing device (not shown) is started. By the start signal of the doffing operation, the integrated value of the number of thread breaks of each weight stored in the RAM 17 is reset to zero. After the full filling is stopped, the CPU 15 resets the count value data of the total number of thread breaks during one doff to zero,
The data is output to the host computer 23.

The host computer 23 inputs information such as thread breakage of each spindle from the machine controller 14 at a predetermined cycle. When the machine is stopped for periodic maintenance, the host computer 2
The third CPU 24 operates according to the flowchart of FIG. First, in step S1, the CPU 24 controls each machine control device 1
In step 4, a command for the regular maintenance mode is output. Next, in step S2, the CPU 24 determines a weight that requires a specific maintenance operation from the history of each weight during the past operation up to the periodic maintenance. More specifically, the CPU 24 controls the CP of the machine control device 14.
The weight determined by U15 to be an unbalanced weight and the weight whose total number of thread breaks up to periodic maintenance is greater than a predetermined number are determined to be unbalanced weights. In addition, as a result of the determination based on the current measurement data of each weight input from each machine controller 14 during operation, the CPU 24 determines that the weight whose load state is not normal is an irregular weight. Then, each of the irregular weights is determined as a weight requiring a specific maintenance operation (centering operation). Next, in step S3, the CPU 24 issues a drive command for the display unit 10 of
15 is output.

When the CPU 15 of each machine control device 14 inputs a command for the periodic maintenance mode, the CPU 15 issues a command for setting the switch 11 to a state of functioning not as a start switch for the spindle motor 2 but as a drive stop command switch for the display unit 10. The weight is output to the CPU 7. Further, when the CPU 15 inputs a drive command for the display unit 10 of the non-adjustable weight, the CPU 15 displays the position of the weight on the display 20 and outputs a drive command signal to the CPU 7 of the weight. And the CPU 7 is the CPU 1
When a drive command signal for the display unit 10 is input from 5, the display unit 10 is driven (lit).

During the regular maintenance work, each worker cleans the machine base,
Each operation of refueling and replacement of consumables is performed for all the weights, but the centering operation of the spindle is performed only for the weight whose display unit 10 is lit. Then, the switch 11 is operated to stop driving the display unit 10 for the weight that has completed the centering operation.

When the regular maintenance work is completed, the fact is reported to the manager, and the manager operates the input device 27 of the host computer 23 to output a regular maintenance mode release command to each machine controller 14. When the CPU 15 receives the periodic maintenance mode release command signal, the CPU 15 outputs a command to the CPU 7 of each weight to return the switch 11 to a state of functioning as a start switch. As a result, each spindle is in a state where spinning operation is possible.

This embodiment has the following effects. (1) A display unit 10 (notification device) is provided for each weight, and a weight requiring a specific maintenance work (centering work) is identified from the history of each weight during the past operation up to the periodic maintenance, and the periodic maintenance is performed. When the machine is stopped, the display unit 10 of the weight requiring the maintenance work is driven. Therefore, the maintenance worker checks the weight on which the display unit 10 is driven, and performs a specific maintenance work only on the weight. Therefore, unlike the related art, unnecessary maintenance work is not performed, so that the machine stoppage time due to periodic maintenance can be reduced, and the operating rate of the machine is improved. In addition, the burden on maintenance workers can be reduced.

(2) Each of the weights is provided with a thread breakage detecting means, and the weight requiring the specific maintenance operation is specified based on the number of times of the thread breakage of each weight. Therefore, in the spinning machine provided with the yarn breakage detection monitor, the monitor device can be used for determining the irregular weight.

(3) One display unit 10 provided for each weight is shared for displaying a thread break and for displaying a specific maintenance work required weight. Therefore, the cost can be reduced and the structure is simplified as compared with the case where a dedicated display unit is provided.

(4) A current sensor 9 for detecting a current value supplied to the spindle motor 2 for each weight is provided.
That is, the irregular weight can be determined. Therefore, as compared with a case where an irregular weight is determined only by a thread break, a weight requiring specific maintenance can be more appropriately selected.

(5) A switch 1 for the operator to start the spindle motor 2 at the time of yarn breakage and after completion of the yarn splicing operation.
1 indicates that the display unit 10 is stopped (turned off) during regular maintenance work
It is configured to be usable for a switch. Therefore, when the maintenance work is performed by a plurality of personnel, by operating the switch 11 to turn off the display unit 10 when the specific maintenance work is completed, it is easy for another person to dub and perform the specific maintenance work. Can be prevented.

(6) The determination of the irregular weight based on the thread break
Since the determination is made not only based on the number of thread breaks during one doff but also based on the number of thread breaks in a relatively long period such as a regular maintenance cycle, a weight requiring specific maintenance can be more appropriately selected.

(7) The machine control device 14 is connected to the host computer 23 via the LAN 22. When the machine is stopped for regular maintenance, a weight required for a specific maintenance work (centering work) is sent from the host computer 23. Commanded automatically. Therefore, the display unit 10 of the predetermined weight is lighted more easily than each machine control device 14 individually performs.

(8) The control unit 6 of each weight is connected to the machine control device 14 via the section control unit 12. Therefore, when the CPU 15 obtains the current detection data or the like by the polling method, the CPU 15 performs polling by the number of the section control units 12 so that the data of the entire spindle can be input, and the data collection time can be reduced.

(9) The operator can quickly go to the position of the weight by confirming the position of the weight that requires the specific maintenance work (centering work) on the monitor display 20, thereby improving the work efficiency. I do.

The embodiment is not limited to the above, and may be embodied as follows, for example. The controller 6 of each spindle controller 4 and the machine controller 14 may be connected to each other via the LAN 29 without providing the section control unit 12, as shown in FIG. Ethernet (registered trademark) is used for the LAN 29. In this configuration, without performing polling from the machine control device 14 and exchanging data with the control unit 6,
Data can be output from each control unit 6 to the machine control device 14. As a result, it is possible to further reduce the time required for the machine control device 14 to obtain data on thread breakage for all weights.

As a method of specifying a weight requiring a specific maintenance operation from the history of each weight during the past operation up to the regular maintenance, the determination may be made only based on the number of thread breaks of each weight. Further, the integration period of the number of times of thread breakage may be set to only a short period (a few doffs) or a long period (periodic maintenance).

As data for determining whether each weight is malfunctioning from the history of each weight, a control signal used for controlling motor driving of each weight, for example, instead of the current value supplied to the motor, for example, , A voltage, a rotation speed, an internal calculation value in a computer, or the like may be used. Also from these data, it is possible to appropriately determine whether or not the weight is an irregular weight.

The integration period of the number of times of thread breakage for judging whether or not the weight is a non-adjustable weight may be set not in units of one doff but in units of working hours or days of a shift worker. In the case of the periodic maintenance, instead of the configuration in which the host computer 23 automatically issues a command for the specific maintenance work weight to each machine control device 14, the administrator can use the history of each weight during the past operation until the periodic maintenance. Alternatively, the input device 27 may be used to specify the specific maintenance work weight. Alternatively, a combination of a command to be performed automatically and a method in which the administrator specifies a specific maintenance work weight using the input device 27 may be used. In this case, the lighting of the display unit 10 can be commanded even for a spindle that is considered to be required to be centered for a reason other than the number of thread breaks or load abnormality.

If the number of irregular spindles with a large number of short-time thread breaks is small, a predetermined number of weights are designated as specific maintenance work required weights in the descending order of the long-term thread breakage count for preventive maintenance. It may be. In this case, the maintenance work time is slightly extended, but as a result, it is advantageous to smoothly operate the machine for a long period of time.

A display for the weight required for the specific maintenance work may be provided separately from the display for displaying the thread breakage, and a switch for turning off the display may be provided separately from the switch 11. In this case, at the time of periodic maintenance, there is no need to instruct each spindle control device to be in the maintenance mode or to switch or change the function of the switch 11.

○ A switch for stopping (turning off) the display for the weight required for the specific maintenance work in the driven (lighted) state is not provided, and after the maintenance work is completed, a command from the machine control device 14 is provided. It may be configured to stop.

The host computer 23 may make all determinations as to whether or not the weight is irregular. The determination of whether or not the machine control device 14 is an unbalanced weight may be made without providing the host computer 23.

The machine control unit 14 determines whether or not each spindle has a broken thread.
May be performed by each spindle control device 4 instead of the configuration performed by. Further, the detection of the thread breakage of each weight is not limited to the method in which the current supplied to the spindle motor 2 is detected by the current sensor 9, and a thread breakage detection sensor of another method may be used.

Instead of providing the inverter 5 for each spindle, a configuration in which the spindle motors 2 of all spindles are driven and controlled via one inverter, or the spindle motors 2 are divided into a plurality of groups and one spindle motor 2 is provided for each group May be provided. In this case, the number of inverters is reduced, and the manufacturing cost is reduced.

Not limited to a single spindle drive type ring spinning machine equipped with a spindle motor 2 for each spindle, a belt drive type ring spinning machine in which a plurality of spindles are driven by one belt is embodied. Is also good. In this case, the determination as to whether or not the weight is an irregular weight is mainly made based on the number of thread breaks.

The present invention is not limited to the ring spinning machine, but may be applied to a single-spindle drive type ring twisting machine or the like. The technical ideas (inventions) other than those described in the claims that can be grasped from the above embodiments are described below.

(1) In the invention according to claim 5 or 6, the motor control device provided for each of the weights is provided with a switch for starting and stopping the motor, and the switch is used when the maintenance is stopped. It is configured to be able to function as a drive stop switch of the notification device driven by the maintenance weight commanding means.

(2) In the invention as set forth in claim 5 or claim 6, the judgment means and the maintenance weight command means are connected via a communication means to a machine control device provided for each spinning machine stand. It is provided in the host computer.

[0057]

As described in detail above, according to the first to sixth aspects of the present invention, in a spinning machine equipped with a large number of weights, such as a ring spinning machine, unnecessary maintenance is performed during periodic maintenance work. The work can be omitted, and the maintenance work time can be shortened, and the maintenance worker can be reliably notified of a weight that does not require a specific maintenance work.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a procedure for displaying a weight required for specific maintenance work.

FIG. 2A is a schematic front view showing a weight according to an embodiment, and FIG. 2B is a block diagram of a spindle control device.

FIG. 3 is a block circuit diagram showing an electrical configuration.

FIG. 4 is a block circuit diagram showing an electrical configuration of another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Spindle, 2 ... Spindle motor, 4 ... Motor control device, 9 ... Construction of thread breakage detecting means and current sensor as current detecting means, 10 ... Display part as notification device, 15 ... Structure of thread breakage detecting means CPU as a determining means and a maintenance weight commanding means, 24... A CPU as a determining means and a maintenance weight commanding means.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Nori Fujii 2-1-1 Toyota-cho, Kariya-shi, Aichi F-term in Toyota Industries Corporation (reference) 4L056 AA02 AA32 DA33 EA19 EA32 EB18 EB30 ED01 ED05 ED11

Claims (6)

[Claims] In a spinning machine equipped with a large number of weights, a notifying device is provided for each of the weights, and a weight requiring a specific maintenance operation is specified from a history of each weight during a past operation up to periodic maintenance, A maintenance support method for a spinning machine that drives the notification device of a spindle that requires the maintenance work when the machine for maintenance is stopped. 2. The spinning machine according to claim 1, wherein each of the weights is provided with a thread breakage detecting means, and the weight which requires the specific maintenance work is specified based on the number of times of thread breakage of each weight. How to help. 3. The spindle of each weight is independently driven by a motor provided for each weight, and the history of each weight is obtained by a control signal used for controlling the motor drive of each weight. The spinning machine maintenance support method described in the above. 4. A spindle of each weight is independently driven by a motor provided for each weight, and a motor control device independent of each motor, and a current detecting means for detecting a current supplied to each motor. The maintenance support method for a spinning machine according to claim 1, wherein a weight required for the specific maintenance work is specified based on a current value supplied to each of the motors. 5. A spinning machine equipped with a large number of weights and independently driving a spindle of each weight by a motor provided for each weight, wherein a motor control device provided for each motor; An alarm device provided for each weight; a current detection means for detecting an amount of current supplied to each of the motors; and determining whether each weight is an irregular weight based on a detection signal of the current detection means for each weight. A maintenance support device for a spinning machine, comprising: a determination unit that performs a maintenance command; and a maintenance weight command unit that outputs a drive command to the notification device of the weight determined to be an improper weight by the determination unit when maintenance of the machine frame is stopped. 6. The spinning machine maintenance support device according to claim 5, wherein the notifying device functions as a yarn breakage notifying device during a spinning operation of the machine stand.