Cutting – Tool with either work holder or means to hold work supply – Rotatable wound package supply
Patent
1995-01-25
1997-07-15
Rada, Rinaldi I.
Cutting
Tool with either work holder or means to hold work supply
Rotatable wound package supply
83694, 83597, B26D 700
Patent
active
056472617
ABSTRACT:
An automated sheet cutting device includes a frame, a fixed linearly-shaped blade secured to the frame, and a moveable blade-supporting mechanism also secured to the frame for operably supporting a moveable blade against the fixed blade. In particular, the blade-supporting mechanism includes a swing arm pivotally secured to the frame for movement about a first axis, and further includes a blade holder pivotally secured to the swing arm for movement about a second axis. An actuator connected to the swing arm rotates the blade-supporting mechanism about the first axis, and a spring connected to the blade holder pivots the blade holder about the second axis so that the moveable blade continuously engages the fixed blade. The fixed and moveable blades comprise elongated linearly shaped bars, but are oriented at an angle so that the blades contact along a continuously shifting shearing point as the moveable blade is moved curvilinearly downwardly across the fixed blade with a sweeping motion. The sweeping motion "kicks" each newly cut section of sheet material away from the blades. The cutting device also includes a roll of sheet material rotatably supported on the frame, and a feeder for feeding the sheet material past the blades. The feeder includes a stepper motor and a speed reduction device operably connected to a friction roller to expend sheet material at a desired rate. A controller is operably connected to the feeder and the actuator so that the cutting device can cut a series of sheet sections from the roll, in an automatic, semi-automatic, or manual mode.
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Rosenthal Manufacturing Company, Inc.'s Wrap-O-Matic Sheeter Sectional View Drawing, dated Nov., 1972.
Bulman Products, Inc.
Rada Rinaldi I.
Stanley Elizabeth
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