Double feed roll lift mechanism

Advancing material of indeterminate length – By intermittent material-mover – Comprising material-moving roll

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

226 35, 226155, 226177, B65H 1722

Patent

active

043645054

ABSTRACT:
The invention relates to a hydraulically actuated feed roll lift mechanism for feeds utilized to feed strip stock into a machine, such as a mechanical press. Regulated hydraulic pressure acting against a piston that is connected to one of the feed rolls through a yoke forces the feed roll against the stock to grip the stock and cause an increment thereof to be fed into the press when the rolls are rotated. A roll opening cam, which is connected to the press crankshaft, advances a small piston to displace oil against the other side of the piston while the stock is at rest to thereby separate the rolls during the time that the dies are in contact with the stock in the press. The time at which roll separation is initiated is controlled by adjusting the angular position of the cam on its shaft, as by releasing a frictional lock mechanism, rotating the cam to the desired position, and then again locking it in place. The invention is particularly related to a double feed roll system wherein opposing feed rolls are located at the infeed and outfeed sides of the press so that the stock is both pushed and pulled therethrough. Identical cam roll lift mechanisms are utilized for both of the pairs of feed rolls wherein the cams are mounted on the same shaft and can be adjusted independently of each other. This enables the infeed and outfeed rolls to be separated at different times during the cycle of the press.

REFERENCES:
patent: 2722276 (1955-11-01), Revelle
patent: 3115999 (1963-12-01), Wythe
patent: 3349981 (1967-10-01), Hawkins et al.
patent: 3583268 (1971-06-01), Scribner
patent: 3754705 (1973-08-01), Wiig
patent: 3782618 (1974-01-01), Voorhees
patent: 3837552 (1974-09-01), Monahan
patent: 3937112 (1976-02-01), Geeson
patent: 4048831 (1977-09-01), Fabian et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Double feed roll lift 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 Double feed roll lift mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double feed roll lift mechanism will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-402677

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.