MACCHINA STIRO-SOFFIATRICE LINEARE PER LA PRODUZIONE DI CONTENITORI IN MATERIALE PLASTICO

摘要

Linear stretch-blow moulding machine for the production of plastic containers, such as bottles, comprising substantially: a section for loading the so-called "preforms" (12); a section for heating the preforms in a heating unit, in which a chain conveyor (10) carries the preforms; and a bottle moulding section. The chain conveyor (10) is used to move the preforms (12) from the loading section to the heating unit, and subsequently a variable pitch adapter (16) provided with grippers (24) collects the preforms from the chain conveyor and transfers them to a fixed-pitch conveyor (26) which carries them inside the press mould. Each gripper (24) of the variable pitch adapter (16) is associated to a linear motor (22) suitable to be controlled independently and selectively to make it possible to vary the pitch of the preforms (12) based on the different dimensions of the bottles to be made.