Method for heating preforms injected drawn from a reservoir for subsequent blow to form hollow bodies in a blow mold and molding device for preforms blown prefabricated.

摘要

IN THE HEAT OF THE PREFORMA INYECTADAS FRIAS, WITHDRAWALS OF A WAREHOUSE, TO TAKE UP THE TEMPERATURE OF BLOWING ON A BAND to feed into the blow mold there is a danger that heat, acting only from the outside, is not delivered ENOUGH ON THE sECTION, SO THE INTERIOR WALL TEMPERATURE RANGE NOT NECESSARY AND BLOWING overheating the outer wall. TO AVOID THIS preforms are first heated to a temperature (tmax1 / TMIN1) LOW TEMPERATURE BLOW (TBL), are then cooled and heated again until A TEMNPERATURA (TMAX3 / TMIN3) SLIGHTLY HIGHER THAN THE TEMPERATURE BLOWN. The preforms ON THE BAND ARE LEFT TO PRODUCE THE BALANCING temperature or to cool slightly. SEPARATION OF BRACKETS preforms transport chain is adjustable to avoid losses by heat radiation. NECK Preforms are PROTEGECON a protective sheath FOR NOT HOT.