System for trimming leading and trailing ends from a wire coil

Details System for trimming leading and trailing ends from a wire coil System for trimming leading and trailing ends from a wire coil

1990-04-05

1991-02-26

Combs, E. Michael

Metal deforming

By deflecting successively-presented portions of work during...

With cutting of work or product

72203, 83 18, 83175, 83907, 140 2, B21F 1100, B21B 4110, B26D 700

Patent

active

049952510

ABSTRACT:
The instant invention is an improvement on a method of making wire coils comprising the steps of rolling a length of wire having a leading end and a trailing end and displacing the wire in a longitudinal travel direction and coiling the wire into succeeding overlapping loops and depositing same onto an upstream conveyor. The loops are transferred from the upstream conveyor to a downstream conveyor and are deposited from the downstream conveyor onto a centering device to form a coil thereon. The downstream conveyor is driven to move the loops at a generally constant slow transport speed but the upstream conveyor is driven to move the loops at a substantially faster transport speed when loops of a portion of the wire having one of the ends are being deposited on the upstream conveyor. Otherwise the upstream conveyor is driven at the same slow speed as the downstream conveyor so that the loops of the end portion will be spaced more in the travel direction than the other loops of the wire. The wire is cut through at the end portion on the downstream conveyor and end-portion loops including the one end of the wire are removed from the downstream conveyor.

REFERENCES:
patent: 3056433 (1962-10-01), Haugwitz
patent: 3231432 (1966-07-01), McLean et al.
patent: 3585887 (1971-06-01), Gerhard et al.
patent: 3756289 (1973-09-01), Rotert et al.
patent: 3759125 (1973-09-01), Vortkamp
patent: 4064916 (1977-12-01), Dahmen
patent: 4088160 (1978-05-01), Balmat et al.
patent: 4498505 (1985-02-01), Kamping et al.

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