Control device for a die cushion mechanism

Details Control device for a die cushion mechanism Control device for a die cushion mechanism

2008-07-22

2008-07-22

Tolan, Ed (Department: 3725)

Metal deforming

With means to drive tool

Including screw-actuated tool support

C072S020100, C072S020300, C072S443000

Reexamination Certificate

active

11470510

ABSTRACT:
A control device (10) for a die cushion mechanism that produces a force for a slide (24) in a press machine, comprising slide velocity command-forming means (61) for forming a velocity command for the slide (24), die cushion velocity command-forming means (62) for forming a velocity command for said die cushion (20), and velocity relation calculation means (65) for calculating a velocity relation between the velocity of the slide and the velocity of the die cushion based on a rate of increase (dF) in the force produced between the slide and the die cushion immediately after the collision of the slide with the die cushion. The cushion velocity command-forming means forms the velocity command for the die cushion based upon the slide velocity command formed by the slide velocity command-forming means and upon the velocity relation calculated by the velocity relation-calculation means. This makes it possible to form an optimum velocity command for the slide and/or the die cushion.

REFERENCES:
patent: 5435166 (1995-07-01), Sunada
patent: 6843647 (2005-01-01), Fujita et al.
patent: 7049775 (2006-05-01), Iwashita et al.
patent: 7069847 (2006-07-01), Teraoka
patent: 7287409 (2007-10-01), Shiroza et al.
patent: 7293447 (2007-11-01), Iwashita et al.
patent: 8025100 (1996-01-01), None
patent: 10202327 (1998-08-01), None
Notice of Reasons for Rejection of Patent Application No. 2005-259263 mailed Sep. 18, 2007.

Affiliated with

Also associated with

Rating

Control device for a die cushion mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control device for a die cushion mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for a die cushion mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3927106