Die cushion controller

Details Die cushion controller Die cushion controller

2006-10-17

2010-12-07

Ross, Dana (Department: 3725)

Metal deforming

With means to drive tool

Including screw-actuated tool support

C072S443000, C072S021100, C072S021400

Reexamination Certificate

active

07845205

ABSTRACT:
A die cushion controller, for driving a die cushion, disposed in opposition to a slide of a press machine, by controlling a servo motor, including: a pressure command portion which prepares a pressure command value for exerting a predetermined pressure to a press material disposed between the slide and the die cushion; a pressure detecting portion which detects an actual pressure exerted on the press material; a speed correction value preparing portion which prepares a speed correction value by multiplying a differential value of the pressure command value prepared by the pressure command portion by a coefficient; and a first speed command portion which prepares a speed command value to be instructed to the servo motor based on the pressure command value prepared by the pressure command portion, the actual pressure detected by the pressure detecting portion, and the speed correction value prepared by the speed correction value preparing portion.

REFERENCES:
patent: 5107193 (1992-04-01), Iwashita
patent: 5435166 (1995-07-01), Sunada
patent: 6902386 (2005-06-01), Uchiyama et al.
patent: 7030585 (2006-04-01), Iwashita et al.
patent: 7392684 (2008-07-01), Iwashita et al.
patent: 7415862 (2008-08-01), Futamura et al.
patent: 7739894 (2010-06-01), Suzuki
patent: 2004/0005378 (2004-01-01), Uchiyama et al.
patent: 2005/0274243 (2005-12-01), Shiroza et al.
patent: 1470375 (2004-01-01), None
patent: 1527170 (2004-09-01), None
patent: 1378806 (2004-01-01), None
patent: 1437637 (2004-07-01), None
patent: 7-195129 (1995-08-01), None
patent: 10-202327 (1998-08-01), None
patent: 2004276028 (2004-10-01), None
Chinese Office Action for Application No. 200610135712X mailed Dec. 7, 2007.
EP Search Report for 06021527 dated Aug. 11, 2009.

Affiliated with

Also associated with

Rating

Die cushion controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Die cushion controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Die cushion controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4202259