Material or article handling – Cylindrical bar handling device – Including ramp and retractable stop or ejector
Patent
1978-03-17
1980-06-17
Schran, Donald R.
Material or article handling
Cylindrical bar handling device
Including ramp and retractable stop or ejector
414745, 414118, 198458, 198690, B65G 6502, B66G 4726, B21D 4308, B23D 3302
Patent
active
042081645
ABSTRACT:
A high-speed bar feeding system for automatically feeding long non-cylindrical (concrete) reinforcing bars wherein the bars are removed from a bundle, placed in a single row on an inclined feed ramp having a multiplicity of support rolls and overhead retaining means adjacent the upper surfaces of the bars, the bars are transferred several at a time from the ramp to a conveyor adjacent the ramp having driven cylindrical rolls and a series of spaced fanning magnets located between the conveyor rolls which position the bars with a predetermined spacing, and the bars are advanced to magnetic drive rolls having several V-grooves to receive the bars and guide them through a cut-off machine to a retractable length gauge. Unique escapement means are employed to lift the bars comprising a series of arms which swing from an inclined retracted position below the conveyor rolls to an inclined raised position wherein the several bars move laterally off the feed ramp by gravity to a position above the conveyor rolls. Each escapement arm has a multiplicity of support rolls to facilitate movement of the non-cylindrical bars and has an escapement plate to engage the first of the remaining bars on the ramp. A unique control system allows operation of the escapement arms a short time before the flat roll conveyor is clear to receive more bars so that the bars can be fed continuously to the cut-off machine with no time delay.
REFERENCES:
patent: 2939568 (1960-06-01), Israelson et al.
patent: 3036413 (1962-05-01), Schulte
patent: 3483959 (1969-12-01), Reiley
patent: 3774779 (1973-11-01), White
patent: 4098393 (1978-07-01), Wykes et al.
Automation Development Corporation
Schran Donald R.
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