JPS55106096A - Sewing machine controller - Google Patents

Sewing machine controller

Info

Publication number
JPS55106096A
JPS55106096A JP1354979A JP1354979A JPS55106096A JP S55106096 A JPS55106096 A JP S55106096A JP 1354979 A JP1354979 A JP 1354979A JP 1354979 A JP1354979 A JP 1354979A JP S55106096 A JPS55106096 A JP S55106096A
Authority
JP
Japan
Prior art keywords
needle
needle bar
voltage
command input
point
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.)
Granted
Application number
JP1354979A
Other languages
Japanese (ja)
Other versions
JPS628194B2 (en
Inventor
Sadaaki Nanai
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP1354979A priority Critical patent/JPS55106096A/en
Publication of JPS55106096A publication Critical patent/JPS55106096A/en
Publication of JPS628194B2 publication Critical patent/JPS628194B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sewing Machines And Sewing (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To prevent the deterioration of the response of a needle position controller and occurrence of erroneous needle position in a sewing machine by switching the control operation of the needle position controller from a proportional integration control to a proportional control.
CONSTITUTION: When a command input for changing the position of a needle bar is applied to a position command input terminal 101, a servo motor 106 moves the needle bar until the output of a potentiometer 108 becomes equal to the command input. The output of an operational amplifier 114 becomes larger while the position of the needle bar is altering, and the voltage at the point A also becomes high. When the voltage at the point A becomes higher than predetermined value, a change-over switch 117 is operated to ahort a capacitor 111 so that a speed amplifier 103 operates under proportional control. When the needle bar moves to predetermined position, the voltage at the point A is lowered. Thus, the switch 117 is opened, and the amplifier 103 operates under proportional integration control.
COPYRIGHT: (C)1980,JPO&Japio
JP1354979A 1979-02-07 1979-02-07 Sewing machine controller Granted JPS55106096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1354979A JPS55106096A (en) 1979-02-07 1979-02-07 Sewing machine controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1354979A JPS55106096A (en) 1979-02-07 1979-02-07 Sewing machine controller

Publications (2)

Publication Number Publication Date
JPS55106096A true JPS55106096A (en) 1980-08-14
JPS628194B2 JPS628194B2 (en) 1987-02-21

Family

ID=11836234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1354979A Granted JPS55106096A (en) 1979-02-07 1979-02-07 Sewing machine controller

Country Status (1)

Country Link
JP (1) JPS55106096A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169777A (en) * 1983-03-15 1984-09-25 日本電子科学株式会社 Drive for arm of industrial robot

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047088A (en) * 1973-08-29 1975-04-26
JPS5315961A (en) * 1976-07-27 1978-02-14 Tokyo Juki Industrial Co Ltd Pattern stitch sewing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047088A (en) * 1973-08-29 1975-04-26
JPS5315961A (en) * 1976-07-27 1978-02-14 Tokyo Juki Industrial Co Ltd Pattern stitch sewing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169777A (en) * 1983-03-15 1984-09-25 日本電子科学株式会社 Drive for arm of industrial robot

Also Published As

Publication number Publication date
JPS628194B2 (en) 1987-02-21

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