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JPS5556489A - Constant speed control device for synchronized running press machine - Google Patents

Constant speed control device for synchronized running press machine

Info

Publication number
JPS5556489A
JPS5556489A JP12679578A JP12679578A JPS5556489A JP S5556489 A JPS5556489 A JP S5556489A JP 12679578 A JP12679578 A JP 12679578A JP 12679578 A JP12679578 A JP 12679578A JP S5556489 A JPS5556489 A JP S5556489A
Authority
JP
Japan
Prior art keywords
press machine
counter
content
speed
pulse
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
JP12679578A
Other languages
Japanese (ja)
Inventor
Masataka Fujiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12679578A priority Critical patent/JPS5556489A/en
Publication of JPS5556489A publication Critical patent/JPS5556489A/en
Pending legal-status Critical Current

Links

Landscapes

  • Press Drives And Press Lines (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

PURPOSE: To provide an enhanced system reliability and an automated synchronizing actuation, the entire control system is digitalized.
CONSTITUTION: The reference counter 45 adds pulses generated from pulse generator 21 and at the same time feeds the reference pulse signal to the resolver exciter circuit 30a and to the coincidence circuit 29a. The content of the error counter 31a is the sum of the instruction value of rotary position, or the pulse content of the location counter 28a and pulse output from the resolver 24a attached to the press machine shaft. The output from the error counter is brought into the D/A converter 32a, which produces a d.c. voltage is proportion to the content of the error counter 31a. The d.c. current is applied to the speed control amplifier 15a in the thyristor Leonard equipment as the speed correction input for the line reference speed, resulting in the press machine operated at constantly controlled speed with perpetual instruction value.
COPYRIGHT: (C)1980,JPO&Japio
JP12679578A 1978-10-17 1978-10-17 Constant speed control device for synchronized running press machine Pending JPS5556489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12679578A JPS5556489A (en) 1978-10-17 1978-10-17 Constant speed control device for synchronized running press machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12679578A JPS5556489A (en) 1978-10-17 1978-10-17 Constant speed control device for synchronized running press machine

Publications (1)

Publication Number Publication Date
JPS5556489A true JPS5556489A (en) 1980-04-25

Family

ID=14944127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12679578A Pending JPS5556489A (en) 1978-10-17 1978-10-17 Constant speed control device for synchronized running press machine

Country Status (1)

Country Link
JP (1) JPS5556489A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492901A (en) * 1981-05-29 1985-01-08 Kabushiki Kaisha Komatsu Seisakusho Control system for synchronizing combination press line
JPH0225298A (en) * 1988-07-14 1990-01-26 Sumitomo Metal Mining Co Ltd Tandem operating method for press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492901A (en) * 1981-05-29 1985-01-08 Kabushiki Kaisha Komatsu Seisakusho Control system for synchronizing combination press line
JPH0225298A (en) * 1988-07-14 1990-01-26 Sumitomo Metal Mining Co Ltd Tandem operating method for press

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