Title:
TRANSFER PRESS
Document Type and Number:
WIPO Patent Application WO/1997/028913
Kind Code:
A1
Abstract:
When an abnormality occurs in a servo driving system in a feeder unit, a transfer press is operated without losing the synchronous operation of a press unit and the feeder unit, or stopped safely. The feeder unit is driven by a plurality of individually controllable servomotors 121, 122, ..., 12n, and the transmission of a driving force to at least one servomotor is interrupted by a magnet contactor in accordance with a required instruction signal representative of the occurrence of abnormality in a driver, whereby the servomotor is put in a free mode.
Inventors:
TAKAYAMA YUKIYOSHI (JP)
Application Number:
PCT/JP1997/000048
Publication Date:
August 14, 1997
Filing Date:
January 08, 1997
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
TAKAYAMA YUKIYOSHI (JP)
TAKAYAMA YUKIYOSHI (JP)
International Classes:
B21D43/05; B30B13/00; B30B15/28; (IPC1-7): B21D43/05; B30B15/28
Foreign References:
| JPH06218459A | 1994-08-09 | |||
| JPH06262280A | 1994-09-20 | |||
| JPH07275971A | 1995-10-24 | |||
| JPS6347525B2 | 1988-09-22 |
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