APPARATUS TO FEED LENGTHENED MATERIAL Russian patent published in 1994 - IPC

FIELD: lengthened material feeding for processing. SUBSTANCE: apparatus has at least two equidistantly located roller conveyers with driven rollers, mounted with clearance between them and with capability to rotate with identical rates in opposite directions for adjacent roller conveyers. Driven rollers of each roller conveyer are placed along it in wavy order. Roller conveyer is arranged in different forms: flat, stepped or zigzag-shaped wave. Driven rollers are combined in groups at least of two members. Driven rollers or groups of different roller conveyers are placed along them layer by layer and mounted in adjacent layers with shift of one relatively another, that does not exceeds radius of driven rollers. Driven rollers of each roller conveyer may also be grouped in corresponding their length of wave three members groups, corresponding driven roller of which, belonging to adjacent roller conveyers, are mounted along them with shift of one relatively to another, equalled to half length of wave. Wave-shaped bending of elastic material increases force of its cohesion with driven rollers. Material during its movement between two roller conveyers always take position, corresponding to planes of symmetry of empty places between driven rollers. EFFECT: apparatus is used for feeding of lengthened material during its processing. 4 cl, 4 dwg