Cutting – Cutting motion of tool has component in direction of moving... – With tool speed regulator
Patent
1992-03-02
1994-05-17
Jones, Eugenia
Cutting
Cutting motion of tool has component in direction of moving...
With tool speed regulator
83320, 83353, B23D 2504
Patent
active
053118022
ABSTRACT:
A cut-off machine for cutting off predetermined lengths from a moving length of roll form material such as tubing adapted to be positioned downstream from a source comprising a plurality of cut-off assemblies which are reciprocated longitudinally of the moving length of material and operated during the movement to sever plural predetermined lengths. A servo motor crank drive assembly is provided which includes a crank having a roller which is yieldingly engaged with a cam track that has a flat tangential portion such that the roller traverses the flat portion. During this movement across the flat portion, the cut-off assemblies are reciprocated driven at a speed corresponding to the speed of movement of the tube at the time the lengths of tubing are being cut off. The apparatus can be adjusted to cut tubes of different lengths by moving the pivot point of a differential beam pivot assembly wherein one end of the beam is driven in a linear reciprocating path by a crank and the other end of the beam is connected to reciprocate the cut-off assemblies such that they are driven at a speed corresponding to the speed of the tube at the time the lengths of tubing are cut off.
REFERENCES:
patent: 3777605 (1973-12-01), Spier
patent: 4462290 (1984-07-01), Wallis
patent: 4544293 (1985-10-01), Cranston et al.
patent: 4643063 (1987-02-01), Gobien
patent: 4939967 (1990-07-01), Wallis
patent: 5063801 (1991-11-01), Wallis
Jones Eugenia
Schrock Allan M.
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