PACKING FILM THERMAL SHRINKAGE OVEN Russian patent published in 1999 - IPC

FIELD: mechanical engineering; packing; packing machine auxiliary devices providing thermal shrinkage of filled packages using heated air stream. SUBSTANCE: thermal shrinkage oven has conveyor, outer framework, inner framework with side compartments and double vault, circulating fan with impeller in vault and heaters in side compartments. Inner framework has double heart divided by cross partitions into channels connected, in turn, with right-hand and left-hand side compartments. EFFECT: enhanced heating and shrinking of film under packed-in articles. 3 dwg