JPH09140979A - Sewing machine driver - Google Patents

Sewing machine driver

Info

Publication number
JPH09140979A
JPH09140979A JP7310451A JP31045195A JPH09140979A JP H09140979 A JPH09140979 A JP H09140979A JP 7310451 A JP7310451 A JP 7310451A JP 31045195 A JP31045195 A JP 31045195A JP H09140979 A JPH09140979 A JP H09140979A
Authority
JP
Japan
Prior art keywords
power supply
motor
power
sewing machine
computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7310451A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
正 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7310451A priority Critical patent/JPH09140979A/en
Publication of JPH09140979A publication Critical patent/JPH09140979A/en
Pending legal-status Critical Current

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  • Sewing Machines And Sewing (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable communication with a computer without installing any special communication cable by reducing the generation of heat of a controller with the re-using of regenerative power during the deceleration of a motor to lower the raw cost of the controller with a smaller size thereof. SOLUTION: A power source part alone of a controller 17 for driving a motor 3 is separated and is made independent as a power source unit 18 which functions as a power source part of a plurality of controllers. The individual controllers and the power source unit are provided with filter circuits 22 and 27 and communication circuits 24 and 28 to make a structure which allows communication with a computer provided separately from the controller. Thus, the re-using of regenerative power obtained when the motor is decelerated is possible without being converted to heat to be released, thus enabling communication through a power source wire for linking the power source unit to the individual controllers.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は工業用ミシンを駆動
するミシン駆動装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine drive device for driving an industrial sewing machine.

【0002】[0002]

【従来の技術】近年の縫製工場では、多品種少量生産あ
るいは作業能率向上に対応するため、生産ラインに設置
するミシン駆動装置を同じタイプに統一し、作業者の多
能化を図り、さらに複数のミシンをコンピュータにより
管理する手法を取り入れる傾向にある。例えば、ミシン
側から縫製完了の情報、稼働中・休止中およびトラブル
発生などの情報をコンピュータに伝達し、またコンピュ
ータ側からは、縫製パターン・最大回転速度・各ミシン
が担当する縫製工程および管理メッセージなどの情報を
ミシン側に伝達し、工場運営を円滑に行うなどである。
2. Description of the Related Art In recent sewing factories, in order to support high-mix low-volume production or to improve work efficiency, the sewing machine drive units installed on the production line are unified into the same type to make workers more versatile. There is a tendency to adopt a computer management method for the sewing machine. For example, the sewing machine side sends information such as sewing completion information, running / non-working and trouble occurrences to the computer, and the computer side sends sewing patterns / maximum rotation speed / the sewing process and management message that each sewing machine is in charge of. Such information is transmitted to the sewing machine side to facilitate factory operations.

【0003】一方、ミシン駆動装置はDCブラシレスモ
ータなどの技術によるサーボモータを駆動源とするもの
が一般的であるが、低価格化・高品質化そして小型化へ
の要望が強い。
On the other hand, a sewing machine drive device is generally one in which a servo motor based on a technique such as a DC brushless motor is used as a drive source, but there is a strong demand for cost reduction, high quality and miniaturization.

【0004】以下図面を参照しながら従来の技術による
ミシン駆動装置を説明する。図4はミシン・モータそし
て制御装置の一般的構成を示すものである。
A conventional sewing machine driving apparatus will be described below with reference to the drawings. FIG. 4 shows a general structure of the sewing machine motor and the control device.

【0005】図5は縫製工場におけるミシン群とコンピ
ュータの配置を示す従来の概念図である。
FIG. 5 is a conventional conceptual view showing the arrangement of a sewing machine group and a computer in a sewing factory.

【0006】図6は、従来の制御装置とモータのブロッ
ク図を示す。図4で、ミシン1はベルト2によりモータ
3と結合され、モータ3は制御装置4からの駆動電力に
より駆動される。作業者はペダル5の操作などにより制
御装置4に操作信号を入力する。
FIG. 6 shows a block diagram of a conventional controller and motor. In FIG. 4, the sewing machine 1 is coupled to the motor 3 by the belt 2, and the motor 3 is driven by the driving power from the control device 4. The operator inputs an operation signal to the control device 4 by operating the pedal 5 or the like.

【0007】図5で、制御装置4は商用電源6から電力
を供給される。制御装置4は、通信端子7を備えコンピ
ュータ8と通信ケーブル9により接続される。
In FIG. 5, the control device 4 is supplied with power from the commercial power supply 6. The control device 4 includes a communication terminal 7 and is connected to the computer 8 by a communication cable 9.

【0008】図6で、制御装置4は商用電源6から電力
を受けモータ3を駆動する間に、開閉器A10,整流回
路11,平滑回路12,回生電力消費回路13そして逆
変換回路14を備え、さらにミシン1に備えられた各種
アクチェータ(図示せず)と逆変換回路14に接続され
モータ3の回転を制御する制御手段15と前記通信端子
7と制御手段15に接続された通信回路16を備えてい
る。
In FIG. 6, the control device 4 is provided with a switch A10, a rectifier circuit 11, a smoothing circuit 12, a regenerative power consumption circuit 13 and an inverse conversion circuit 14 while receiving electric power from the commercial power source 6 and driving the motor 3. Further, various actuators (not shown) provided in the sewing machine 1, a control means 15 connected to the inverse conversion circuit 14 for controlling the rotation of the motor 3, a communication terminal 7 and a communication circuit 16 connected to the control means 15 are connected. I have it.

【0009】以下、従来例の動作を説明する。ミシン1
は作業者がペダル5を踏み込むと制御装置4はモータ3
を踏み込み量に応じた回転速度で回しミシン1を駆動す
る。ペダル5を戻すとモータ3は減速し停止する。モー
タ3は減速時に回生制動の領域があり、回生電力を逆変
換回路14を介して平滑回路12に蓄える。このとき、
回生電力が大きいと平滑回路12の充電電圧が上昇し過
ぎて、平滑回路12や逆変換回路14の耐電圧値を超え
る恐れがある。そこで、耐電圧値より低い電圧で回生電
力消費回路13が作動し熱に変換し電圧に上昇を制限す
る。
The operation of the conventional example will be described below. Sewing machine 1
When the operator depresses the pedal 5, the control device 4 controls the motor 3
The sewing machine 1 is driven by rotating at a rotational speed according to the amount of depression. When the pedal 5 is returned, the motor 3 decelerates and stops. The motor 3 has a regenerative braking region during deceleration, and stores regenerative electric power in the smoothing circuit 12 via the inverse conversion circuit 14. At this time,
If the regenerative power is large, the charging voltage of the smoothing circuit 12 may rise excessively and exceed the withstand voltage value of the smoothing circuit 12 or the inverse conversion circuit 14. Therefore, the regenerative power consumption circuit 13 operates at a voltage lower than the withstand voltage value, converts it into heat, and limits the increase in voltage.

【0010】ここで、平滑回路の静電容量が充分大きけ
れば電圧の上昇は抑制されることは知られている。しか
し、形状が大きくなることと高価になることから、55
0Wのモータであれば1000μF程度が適当とされて
いる。
Here, it is known that an increase in voltage is suppressed if the capacitance of the smoothing circuit is sufficiently large. However, since the shape is large and the cost is high, 55
For a 0 W motor, about 1000 μF is suitable.

【0011】一方、通信回路16は制御手段15からの
信号をコンピュータ8と通信できる信号に変換するとと
もに、コンピュータが制御装を識別する機能をも備え
る。近年、ミシン駆動用の制御装置は、不揮発性記憶素
子のデータによる動作モード切り替えを行うのが一般的
である。このデータの読みだし・書き込みをコンピュー
タで行い、ミシンの動作モードの変更・動作状態の把握
などにより縫製工場全体の工程管理などを行うことがで
きるが、本発明とは直接関係ないので説明を省略する。
On the other hand, the communication circuit 16 has a function of converting a signal from the control means 15 into a signal capable of communicating with the computer 8 and also having a function of identifying the control device by the computer. In recent years, a control device for driving a sewing machine generally switches an operation mode according to data in a nonvolatile memory element. This data can be read and written by a computer, and process control of the entire sewing factory can be performed by changing the operation mode of the sewing machine and grasping the operating state, but the description is omitted because it is not directly related to the present invention. To do.

【0012】[0012]

【発明が解決しようとする課題】以上説明したような従
来のミシン駆動装置は、各制御装置に整流回路・平滑回
路および回生電力消費回路を有することで形状が大きく
なり、制御装置の発熱も大きく、消費電力も増大させて
いた。また、各制御装置にコンピュータとの通信端子を
設け、専用の通信ケーブルを布設しなければならない。
The conventional sewing machine drive apparatus as described above has a large size because each control apparatus has a rectifying circuit / smoothing circuit and a regenerative power consumption circuit, and the control apparatus also generates a large amount of heat. , Power consumption was also increasing. Also, each control device must be provided with a communication terminal with a computer and a dedicated communication cable must be installed.

【0013】さらに、ミシン駆動装置の電源スイッチは
手動により開閉している。安全のため作業者が持ち場を
離れるときは電源スイッチを切るよう指導していること
などにより、休憩時間中は電源スイッチが切られている
ことが多い。生産情報の収集のため生産管理の担当者が
電源スイッチを入れるため、工場の中を走り回るという
問題点を有していた。
Further, the power switch of the sewing machine drive is manually opened and closed. For safety reasons, workers are often instructed to turn off the power switch when they leave the site, so the power switch is often turned off during breaks. Since the person in charge of production management turns on the power switch to collect production information, there was a problem of running around in the factory.

【0014】本発明は、モータ減速時の回生電力の再利
用で制御装置の発熱を低減し、制御装置を小型にすると
ともに原価を低減し、特別な通信ケーブルを布設せずに
コンピュータとの通信を可能とし、コンピュータが必要
とするとき電源スイッチを入り切りできるミシン駆動装
置を提供するものである。
The present invention reduces the heat generation of the control device by reusing the regenerated electric power when decelerating the motor, downsizes the control device and reduces the cost, and communicates with a computer without installing a special communication cable. The present invention provides a sewing machine drive that enables and disables the power switch and turns it on and off when the computer requires it.

【0015】[0015]

【課題を解決するための手段】上記課題を解決するため
本発明のミシン駆動装置は、ミシンをそれぞれ駆動する
モータと、モータとミシンを制御する制御装置と、複数
の制御装置と電源線で接続された電源装置と、電源線と
信号的に接続されたコンピュータからなり、制御装置は
モータの回転とミシンの動作を制御する制御手段と、前
記電源線から第1の開閉器と第1のフィルタ回路を介し
て供給された電力をモータの駆動電力に変換する逆変換
手段と、前記第1の開閉器と前記電源線に接続された第
2の開閉器と、一方が第2の開閉器に接続され他方が前
記制御手段に接続された第1の通信回路を含み、前記第
1の通信回路は、前記コンピュータからの指令により前
記第1の開閉器を開閉する機能とともに、前記コンピュ
ータと前記制御手段との間で信号を変換・通信する機能
を有し、前記電源装置は商用電源を直流電源にする変換
回路と、変換回路と前記電源線の間に接続された第2の
フィルタ回路と、一方が電源線に接続され他方は前記コ
ンピュータと接続される第2の通信回路を含み、前記変
換回路は各モータからの回生電力を吸収できる比較的大
容量の平滑コンデンサを備え、前記第2の通信回路は前
記コンピュータと前記制御手段との間で信号を変換・通
信する機能を提供するものである。
In order to solve the above-mentioned problems, a sewing machine drive device of the present invention comprises a motor for driving each sewing machine, a control device for controlling the motor and the sewing machine, and a plurality of control devices connected by power lines. The power supply device and a computer signal-connected to the power supply line, and the control device controls the rotation of the motor and the operation of the sewing machine, the first switch and the first filter from the power supply line. Inverting means for converting the electric power supplied through the circuit into the driving electric power of the motor, the first switch and the second switch connected to the power supply line, and one of the second switch. A first communication circuit, which is connected and the other is connected to the control means, has a function of opening and closing the first switch according to a command from the computer, and the computer and the control. hand The power supply device has a function of converting and communicating signals with the power supply device, and the power supply device has a conversion circuit for converting a commercial power supply into a direct current power supply; a second filter circuit connected between the conversion circuit and the power supply line; Includes a second communication circuit connected to a power supply line and the other connected to the computer, and the conversion circuit includes a smoothing capacitor having a relatively large capacity capable of absorbing regenerative power from each motor, and the second communication circuit. The circuit provides a function of converting and communicating signals between the computer and the control means.

【0016】以上のような構成は従来より、例えば特開
平7−141060,特公平5−15090,特公平5
−32930などに開示されているように、機器内であ
るいは商用電源に対し、電源線に通信信号を重畳させる
技術は公知である。しかし、本発明は通信信号を用いて
電源を開閉する構成を採用したこと、さらに下記に述べ
る回生電力を再利用できる作用において新規性のある手
段である。
The above-described structure is conventionally used, for example, in Japanese Patent Laid-Open No. 7-141060, Japanese Patent Publication No. 5-15090, Japanese Patent Publication No.
As disclosed in No. 32930, etc., a technique for superimposing a communication signal on a power supply line in a device or with respect to a commercial power supply is known. However, the present invention is a novel means in that it adopts the configuration of opening and closing the power source by using the communication signal, and further in the function of reusing the regenerative power described below.

【0017】[0017]

【発明の実施の形態】本発明の請求項1に記載の発明
は、複数のミシンと、ミシンをそれぞれ駆動するモータ
と、モータとミシンを制御する制御装置と、複数の制御
装置と電源線で接続された電源装置と、電源線と信号的
に接続されたコンピュータからなり、制御装置はモータ
の回転とミシンの動作を制御する制御手段と、前記電源
線から第1の開閉器と第1のフィルタ回路を介して供給
された電力をモータの駆動電力に変換する逆変換手段
と、前記第1の開閉器と前記電源線に接続された第2の
開閉器と、一方が第2の開閉器に接続され他方が前記制
御手段に接続された第1の通信回路を含み、前記第1の
通信回路は、前記コンピュータからの指令により前記第
1の開閉器を開閉する機能とともに、前記コンピュータ
と前記制御手段との間で信号を変換・通信する機能と、
前記複数の制御装置の識別機能を有し、前記電源装置は
商用電源を直流電源にする変換回路と、変換回路と前記
電源線の間に接続された第2のフィルタ回路と、一方が
電源線に接続され他方は前記コンピュータと接続される
第2の通信回路を含み、前記変換回路は各モータからの
回生電力を吸収できる比較的大容量の平滑コンデンサを
備え、前記第2の通信回路は前記コンピュータと前記制
御手段との間で信号を変換・通信する機能を有したミシ
ン駆動装置としたものであり、この構成によって、個々
のモータからの回生電力はは電源装置の比較的大容量の
平滑コンデンサに吸収され、他のモータの駆動電力とし
て再利用されるとともに回生電力による電圧上昇が少な
いため、耐電圧の低い安価な部品を使うことができる。
そして、制御装置から整流回路と回生電力消費回路を除
くことで小型化が図れる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a plurality of sewing machines, a motor for driving each of the sewing machines, a control device for controlling the motor and the sewing machine, a plurality of control devices and a power line. The control device comprises a connected power supply device and a computer signal-connected to the power supply line, and the control device controls the rotation of the motor and the operation of the sewing machine, the first switch and the first switch from the power supply line. Inverse conversion means for converting the electric power supplied through the filter circuit into the driving electric power of the motor, the first switch and the second switch connected to the power supply line, and one of the second switch. A first communication circuit connected to the computer and the other connected to the control means, the first communication circuit having the function of opening and closing the first switch according to a command from the computer, the computer and the Between control means A function of converting and communicating signals,
The power supply device has a function of identifying the plurality of control devices, and the power supply device includes a conversion circuit that converts a commercial power supply into a DC power supply, a second filter circuit connected between the conversion circuit and the power supply line, and one of the power supply lines. A second communication circuit connected to the computer and the other connected to the computer, the conversion circuit having a relatively large-capacity smoothing capacitor capable of absorbing regenerative electric power from each motor, and the second communication circuit The sewing machine drive device has a function of converting and communicating signals between the computer and the control means. With this configuration, the regenerative power from each motor is smoothed by a relatively large capacity of the power supply device. Since it is absorbed by the capacitor and reused as driving power for other motors and the voltage rise due to regenerative power is small, inexpensive parts with low withstand voltage can be used.
Further, by removing the rectifying circuit and the regenerative power consumption circuit from the control device, the size can be reduced.

【0018】請求項2に記載の発明は、電源線は電力線
と接地線からなり、前記第1および第2のフィルタ回路
は前記第1および第2の通信回路からの信号を前記電力
線と接地線に接続する構成の請求項1記載のミシン駆動
装置としたものであり、全ての制御装置に電力を供給し
ている電源線を介して通信信号を送ることで新たな通信
ケーブルを布設すること無く縫製工場のコンピュータ管
理をすることが可能である。さらに、比較的小電力の通
信回路だけ通電しておき、大電力の回路は必要なときだ
け通電する事により、安全な工場運営と能率的な情報収
集の両立が図れる。
According to a second aspect of the present invention, the power supply line is composed of a power line and a ground line, and the first and second filter circuits receive signals from the first and second communication circuits. The sewing machine drive device according to claim 1, which is configured to be connected to the control device, and by sending a communication signal through a power supply line supplying power to all control devices, without installing a new communication cable. It is possible to manage computers in a garment factory. Further, by energizing only a relatively small power communication circuit and energizing a high power circuit only when necessary, both safe factory operation and efficient information collection can be achieved.

【0019】以下、本発明の実施の形態について、図1
から図3を用いて説明する。図1はミシン・モータおよ
び制御装置の一般的配置を示すものであり、図2は縫製
工場におけるミシン群・電源装置とコンピュータの配置
を示す概念図である。
Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. FIG. 1 shows a general arrangement of a sewing machine / motor and a control device, and FIG. 2 is a conceptual diagram showing the arrangement of a sewing machine group / power supply device and a computer in a sewing factory.

【0020】図3はミシン駆動装置のブロック図を示
す。図1で、ミシン1はベルト2によりモータ3と結合
され、モータ3は制御装置17からの駆動電力により駆
動される。
FIG. 3 shows a block diagram of the sewing machine driving device. In FIG. 1, the sewing machine 1 is connected to a motor 3 by a belt 2, and the motor 3 is driven by driving power from a controller 17.

【0021】図2で、制御装置17は電源装置18から
電源線19を通して電力を供給される。電源線19は電
源装置18と複数の制御装置を接続する。電源装置18
は、通信端子20を備えコンピュータ8と接続される。
In FIG. 2, the control device 17 is supplied with power from the power supply device 18 through the power supply line 19. The power supply line 19 connects the power supply device 18 and a plurality of control devices. Power supply 18
Is equipped with a communication terminal 20 and is connected to the computer 8.

【0022】図3で、制御装置17は電源線19から電
力を受けモータ3を駆動する間に、開閉器B21、フィ
ルタ回路22そして逆変換回路14を備え、さらにミシ
ン1に備えられた各種アクチェータ(図示せず)とモー
タ3の回転を制御する制御手段15と、前記電源線19
・開閉器B21と制御手段15間に開閉器C23を介し
て接続された通信回路24を備えている。
In FIG. 3, the control device 17 is provided with a switch B21, a filter circuit 22 and an inverse conversion circuit 14 while receiving electric power from the power supply line 19 and driving the motor 3, and further various actuators provided in the sewing machine 1. (Not shown), control means 15 for controlling the rotation of the motor 3, and the power supply line 19
A communication circuit 24 connected between the switch B21 and the control means 15 via a switch C23.

【0023】電源装置18は電源6から電源線19に電
力を供給する間に、整流回路25・平滑回路26・フィ
ルタ回路27を備え、そして前記通信端子20とフィル
タ回路27に接続された通信回路28を備えている。
The power supply device 18 is provided with a rectifying circuit 25, a smoothing circuit 26, and a filter circuit 27 while supplying power from the power source 6 to the power line 19, and a communication circuit connected to the communication terminal 20 and the filter circuit 27. Equipped with 28.

【0024】以下、図1から図3を用いて実施の形態の
動作を説明する。本実施の形態の動作は基本的に従来例
と同じである。本実施の形態では電源装置18を制御装
置17から分離したため、モータ減速時の回生電力は逆
変換回路14・フィルタ回路22そして電源線19を介
して電源装置18の平滑回路26に回収される。
The operation of the embodiment will be described below with reference to FIGS. 1 to 3. The operation of this embodiment is basically the same as the conventional example. In the present embodiment, since the power supply device 18 is separated from the control device 17, the regenerative power during motor deceleration is recovered by the smoothing circuit 26 of the power supply device 18 via the inverse conversion circuit 14, the filter circuit 22 and the power supply line 19.

【0025】平滑回路26はモータ1台当たりの回生電
力に比較して十分大きい容量にしてあるため、回路の電
圧が上昇し過ぎることはない。従って、回生電力消費回
路は省略してある。回収した電力は次のモータ加速時あ
るいは他のモータの加速時あるいは駆動に使うので無駄
がない。
Since the smoothing circuit 26 has a capacity sufficiently larger than the regenerative electric power per motor, the voltage of the circuit will not rise excessively. Therefore, the regenerative power consumption circuit is omitted. The recovered electric power is not wasted because it is used for the next motor acceleration, acceleration of another motor, or driving.

【0026】フィルタ回路22は電源線19あるいは通
信回路24からの通信信号が逆変換回路14に吸収され
減衰することや、逆変換回路14がモータ3の駆動電力
をパルス幅変調していることによる電源線19の電圧の
乱れで通信信号に雑音が混入することを防ぐ。
In the filter circuit 22, the communication signal from the power line 19 or the communication circuit 24 is absorbed and attenuated by the inverse conversion circuit 14, and the inverse conversion circuit 14 performs pulse width modulation on the drive power of the motor 3. It is possible to prevent noise from being mixed in the communication signal due to the disturbance of the voltage of the power supply line 19.

【0027】フィルター回路27は電源線19あるいは
通信回路28からの通信信号が平滑回路26に吸収され
減衰することを防ぐ。
The filter circuit 27 prevents the communication signal from the power line 19 or the communication circuit 28 from being absorbed and attenuated by the smoothing circuit 26.

【0028】通信回路24および通信回路28はコンピ
ュータ8の信号あるいは制御手段15の信号を電源線1
9を伝達し易い信号に変調し、そして復調する機能を持
つ。この変調・変換方式は問わない。
The communication circuit 24 and the communication circuit 28 receive the signal of the computer 8 or the signal of the control means 15 from the power line 1.
9 has a function of modulating to a signal that can be easily transmitted and demodulating. This modulation / conversion method does not matter.

【0029】この変換された通信信号は、電源線19に
接続された全ての制御装置に伝達され、電源装置18の
通信端子20に接続されたコンピュータ8との間で通信
される。また、通信回路24の識別機能によりコンピュ
ータは制御装置を特定できる。
The converted communication signal is transmitted to all the control devices connected to the power supply line 19 and communicated with the computer 8 connected to the communication terminal 20 of the power supply device 18. Further, the identification function of the communication circuit 24 allows the computer to identify the control device.

【0030】通信回路24はコンピュータ8の指令によ
り開閉器B21の入り切りができる。開閉器C23を開
にすると通信回路24への信号を遮断するとともに、通
信回路用電源も遮断し、開閉器B22を強制的に開にす
る。
The communication circuit 24 can turn on / off the switch B21 according to a command from the computer 8. When the switch C23 is opened, the signal to the communication circuit 24 is cut off, the power supply for the communication circuit is also cut off, and the switch B22 is forcibly opened.

【0031】以上が本発明の実施の形態の動作である。
なお、第2の実施の形態は電源線を接地線付きのケーブ
ルにし、通信回路23からの信号を電源線19と接地線
(図示せず)に接続したものである。信号は電源線19
に同相で重畳されるのでフィルタの構成を簡単にするこ
とができる。
The above is the operation of the embodiment of the present invention.
In the second embodiment, the power line is a cable with a ground line, and the signal from the communication circuit 23 is connected to the power line 19 and the ground line (not shown). Signal is power line 19
Since it is superposed in phase with, the filter structure can be simplified.

【0032】[0032]

【発明の効果】以上のように本発明は、回生電力を再利
用するためミシンの省エネルギー運転が実現でき、大型
の電力部品を電源装置に集約したため制御装置を小型に
することができる。
As described above, according to the present invention, since the regenerative electric power is reused, the energy saving operation of the sewing machine can be realized, and since the large power components are integrated in the power supply device, the control device can be downsized.

【0033】電源装置の平滑コンデンサ容量を大きくす
ることで回生電力による電圧上昇を抑制できるため、耐
電圧の低い部品を使用することができ原価低減にもな
る。
Since the voltage increase due to the regenerative power can be suppressed by increasing the capacity of the smoothing capacitor of the power supply device, it is possible to use parts having a low withstand voltage and reduce the cost.

【0034】電源装置の容量は、制御装置1台当たりの
容量に接続された制御装置の台数分を乗じた値は必要な
く、ミシンの稼働率を考慮した容量に低減でき、経済的
である。
The capacity of the power supply device does not need to be a value obtained by multiplying the capacity per control device by the number of connected control devices, and can be reduced to a capacity considering the operating rate of the sewing machine, which is economical.

【0035】従来は商用源源の配線と専用の通信ケーブ
ルを布設しなければならなかったが、本発明では電源線
を布設するだけでよい。
Conventionally, the wiring of the commercial power source and the dedicated communication cable had to be laid, but in the present invention, only the power supply line needs to be laid.

【0036】また、コンピュータからの指令により制御
装置の電源を開閉できるので、作業終了後でも生産情報
の集計作業ができる。以上のような優れた効果を持つミ
シン駆動装置を実現できるものである。
Further, since the power source of the control device can be opened and closed by a command from the computer, the production information can be aggregated even after the work is completed. The sewing machine drive device having the above-described excellent effects can be realized.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施の形態によるモータ・制御装置
およびミシンの一般的配置図
FIG. 1 is a general layout of a motor / control device and a sewing machine according to an embodiment of the present invention.

【図2】本発明の一実施の形態によるミシン・電源装置
とコンピュータの配置を示す概念図
FIG. 2 is a conceptual diagram showing an arrangement of a sewing machine / power supply device and a computer according to an embodiment of the present invention.

【図3】本発明の一実施の形態によるミシン駆動装置の
ブロック図
FIG. 3 is a block diagram of a sewing machine driving device according to an embodiment of the present invention.

【図4】従来のモータ・制御装置およびミシンの一般的
配置図
FIG. 4 is a general layout of a conventional motor / control device and sewing machine.

【図5】従来のミシン・電源装置とコンピュータの配置
を示す概念図
FIG. 5 is a conceptual diagram showing a layout of a conventional sewing machine / power supply device and a computer.

【図6】従来のミシン駆動装置のブロック図FIG. 6 is a block diagram of a conventional sewing machine drive device.

【符号の説明】[Explanation of symbols]

1 ミシン 2 ベルト 3 モータ 4 制御装置 5 ペダル 6 電源 7,20 通信端子 8 コンピュータ 9 通信ケーブル 10 開閉器A 11,25 整流回路 12,26 平滑回路 13 回生電力消費回路 14 逆変換回路 15 制御手段 16,24,28 通信回路 17 制御装置 18 電源装置 19 電源線 21 開閉器B 22,27 フィルタ回路 23 開閉器C 1 sewing machine 2 belt 3 motor 4 controller 5 pedal 6 power supply 7,20 communication terminal 8 computer 9 communication cable 10 switch A 11,25 rectifier circuit 12,26 smoothing circuit 13 regenerative power consumption circuit 14 reverse conversion circuit 15 control means 16 , 24, 28 communication circuit 17 control device 18 power supply device 19 power supply line 21 switch B 22, 27 filter circuit 23 switch C

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】複数のミシンと、ミシンをそれぞれ駆動す
るモータと、モータとミシンを制御する制御装置と、複
数の制御装置と電源線で接続された電源装置と、電源線
と信号的に接続されたコンピュータからなり、制御装置
はモータの回転とミシンの動作を制御する制御手段と、
前記電源線から第1の開閉器と第1のフィルタ回路を介
して供給された電力をモータの駆動電力に変換する逆変
換手段と、前記第1の開閉器と前記電源線に接続された
第2の開閉器と、一方が第2の開閉器に接続され他方が
前記制御手段に接続された第1の通信回路を含み、前記
第1の通信回路は、前記コンピュータからの指令により
前記第1の開閉器を開閉する機能とともに、前記コンピ
ュータと前記制御手段との間で信号を変換・通信する機
能と、前記複数の制御装置の識別機能を有し、前記電源
装置は商用電源を直流電源にする変換回路と、変換回路
と前記電源線の間に接続された第2のフィルタ回路と、
一方が電源線に接続され他方は前記コンピュータと接続
される第2の通信回路を含み、前記変換回路は各モータ
からの回生電力を吸収できる比較的大容量の平滑コンデ
ンサを備え、前記第2の通信回路は前記コンピュータと
前記制御手段との間で信号を変換・通信する機能を有し
たミシン駆動装置。
1. A plurality of sewing machines, a motor for driving each of the sewing machines, a control device for controlling the motor and the sewing machine, a power supply device connected to the plurality of control devices by a power supply line, and a signal connection to the power supply line. And a control device for controlling the rotation of the motor and the operation of the sewing machine,
Inverting means for converting the electric power supplied from the power supply line through the first switch and the first filter circuit into the drive power of the motor, and the first conversion device connected to the first switch and the power supply line. And a first communication circuit, one of which is connected to the second switch and the other of which is connected to the control means, the first communication circuit including the first switch according to a command from the computer. In addition to the function of opening and closing the switch, the function of converting and communicating signals between the computer and the control means, and the function of identifying the plurality of control devices, the power supply device uses a commercial power supply as a DC power supply. And a second filter circuit connected between the conversion circuit and the power supply line,
The conversion circuit includes a second communication circuit, one of which is connected to a power supply line and the other of which is connected to the computer, and the conversion circuit includes a relatively large-capacity smoothing capacitor capable of absorbing regenerative electric power from each motor. The communication circuit is a sewing machine drive device having a function of converting and communicating signals between the computer and the control means.
【請求項2】電源線は電力線と接地線からなり、前記第
1および第2のフィルタ回路は前記第1および第2の通
信回路からの信号を前記電力線と接地線に接続する構成
の請求項1記載のミシン駆動装置。
2. The power supply line comprises a power line and a ground line, and the first and second filter circuits connect the signals from the first and second communication circuits to the power line and the ground line. 1. The sewing machine drive device according to 1.
JP7310451A 1995-11-29 1995-11-29 Sewing machine driver Pending JPH09140979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7310451A JPH09140979A (en) 1995-11-29 1995-11-29 Sewing machine driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7310451A JPH09140979A (en) 1995-11-29 1995-11-29 Sewing machine driver

Publications (1)

Publication Number Publication Date
JPH09140979A true JPH09140979A (en) 1997-06-03

Family

ID=18005415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7310451A Pending JPH09140979A (en) 1995-11-29 1995-11-29 Sewing machine driver

Country Status (1)

Country Link
JP (1) JPH09140979A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005218240A (en) * 2004-01-30 2005-08-11 Tamagawa Seiki Co Ltd Motor controller system and motor system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005218240A (en) * 2004-01-30 2005-08-11 Tamagawa Seiki Co Ltd Motor controller system and motor system

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