Roll type stock feed apparatus with mechanical feed roll release

Details Roll type stock feed apparatus with mechanical feed roll release Roll type stock feed apparatus with mechanical feed roll release

1994-08-25

1998-06-09

Rachuba, Maurina T.

Cutting

Tool engages work during dwell of intermittent workfeed

Dwell initiated by disengagement of surface of moving...

83222, 83225, B26D 520

Patent

active

057619786

ABSTRACT:
A roll type stock feed apparatus having one feed roll rotatably mounted on a stationary frame structure, and a second feed roll mounted on a movable roll carrier and yieldably urged into a stock engaging condition. An electro-responsive servomotor is drivingly connected to at least one of the feed rolls for driving the feed rolls through a preselected feed cycle. An elongated ram position sensor is slidably mounted on the stationary frame structure for lengthwise reciprocation along an upright path and is yieldably urged upwardly relative to the frame structure to a preset raised position on the frame structure. A cam on the ram position sensor member engages a cam follower on the movable roll carrier and is operative in response to movement of the sensor member downwardly from the preset raised position to move the roll carrier and the second stock feed roll to a stock release condition.

REFERENCES:
patent: 2261703 (1941-11-01), Tetzlaff
patent: 2339962 (1944-01-01), Louis
patent: 2726083 (1955-12-01), Lewis, III
patent: 2963931 (1960-12-01), Lamoureux
patent: 3067999 (1962-12-01), Skeen
patent: 3246822 (1966-04-01), Skeen
patent: 3277856 (1966-10-01), Ricci
patent: 3530753 (1970-09-01), Imai
patent: 4294170 (1981-10-01), Takahashi
patent: 4942796 (1990-07-01), Dom et al.
patent: 5033342 (1991-07-01), Nordlof

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