Advancing material of indeterminate length – Plural material-moving means – And intermediate storage
Patent
1993-11-09
1995-02-28
Falik, Andrew M.
Advancing material of indeterminate length
Plural material-moving means
And intermediate storage
226 45, 226 42, 72 8, B65H 2032
Patent
active
053929772
ABSTRACT:
A coil material supply apparatus is provided between an uncoiler for unwinding a coil material (or a leveler for flattening the unwound coil material) and an intermittent feed device of a mechanical press. This apparatus includes a pair of feed rollers for feeding the coil material upwardly, a servo motor for driving the feed rollers, position sensors for detecting the amount of a loop of the coil material, and a controller responsive to a detection signal from the position sensors for controlling the rotation of the servomotor to control the loop to an optimum amount. With this apparatus, the fluttering of the coil material is reduced even when a high-speed operation is effected, and the load on the intermittent feed device is reduced, and the length of the pressing line or length of coil material feeding path can be reduced.
REFERENCES:
patent: 3762198 (1973-10-01), Bair
patent: 4294170 (1981-10-01), Takahashi
patent: 4384665 (1983-05-01), Waddington
patent: 4464916 (1984-08-01), Grew et al.
patent: 4561581 (1985-12-01), Kelly
Falik Andrew M.
Sankyo Seisakusho Co.
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