DEVICE FOR CONTROLLING LOOPER MOTOR - TOSHIBA MITSUBISHI ELEC INC

Title:

DEVICE FOR CONTROLLING LOOPER MOTOR

Document Type and Number:

Japanese Patent JP2008296284

Kind Code:

A

Abstract:

To improve stability about the control of a looper motor by incorporating the variation of a looper angle .

A multiplyer 42 outputs a multiplied value of a motor current reference Irefex from a controller 9 and a cosine value COSfrom a cosine functional instrument 41 to the positive terminal of a subtracter 16 as a corrected current reference Iref through a limit circuit. Then, because the motor current reference Irefex from the controller 9 is corrected in accordance with the variation of the looper angle by a motor current reference circuit 40 and the corrected current reference Iref is output to the subtracter 16, the output of a current control circuit 13 becomes a proper output in which the variation of the looper angle is incorporated and the output of the circuit 14 of the mechanical system of the motor becomes also proper.

More Like This:

JPH07265930	CONTROL DEVICE FOR LOOPER TENSION
JPH06114425	TENSION CONTROLLER FOR CONTINUOUS MILL

Inventors:

MATSUMOTO HIROAKI
KATO YOSHITO

Application Number:

JP2008234910A

Publication Date:

December 11, 2008

Filing Date:

September 12, 2008

Export Citation:

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Assignee:

TOSHIBA MITSUBISHI ELEC INC

International Classes:

B21B37/50; B21B37/00

Domestic Patent References:

JPH04371309A	1992-12-24
JPH09192716A	1997-07-29
JPH0859040A	1996-03-05
JPH07265930A	1995-10-17
JPH1157829A	1999-03-02
JPH07284834A	1995-10-31
JP2001179321A	2001-07-03
JPS60255210A	1985-12-16
JP4208523B2	2009-01-14

Attorney, Agent or Firm:

Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki

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