FIELD: plastic metal working, particular, straightening, cleaning, heating and feeding of wire at a definite velocity and force to forming mechanism of spring-coiling automatic unit. SUBSTANCE: the offered device has two successively installed units of cold-hardened rollers staggered in the same plane, two pairs of feed rollers, heating member and unit of additional heating and cleaning of wire. The unit of additional heating of wire is made in form of holders installed before, between and behind the cold-hardened rollers. Holders have polyurethane inserts over their periphery to form passage hole for wire. Passage hole diameter is smaller than that of wire. Each pair of feeding rollers consists of hold-down and driven rollers. Heating member is located between hold-down rollers. Diameter of the first pair of rollers is smaller than that of the second pair of rollers. Working surface of all rollers made of tool steel with hardness HRC 75-78. EFFECT: higher efficiency. 3 cl, 2 dwg
Authors
Dates
1997-05-27—Published
1993-03-31—Filed