JPS55106096A - Sewing machine controller - Google Patents
Sewing machine controllerInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-02-07 JP JP1354979A patent/JPS55106096A/en active Granted
Patent Citations (2)
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)
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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