PET stretch Blow Molding Machines

Description

***** • With the design and construction of the new MEMBLOW series (MEMCO stretch blow molding machines), MEMCO ‎has succeeded in combining the proven simplicity and reliability with the most recent developments in the PET ‎processing technology. ‎ User- friendly controls, high productivity, reduced maintenance and operating costs are part of the attractiveness of ‎the new MEMBLOW series.‎ ‎*-‎Preform loading: The preforms are conveyed from a large capacity hopper to the automatic unscrambler where ‎they are oriented; from the unscrambler they travel down support rails by gravity, at the end a star wheel places ‎the prerforms upside down onto the pins of the prerform carriers. From their loading on the machine to the ‎removal of the containers, the preforms remain on the same carrier.‎ ‎*-‎Preform transferring: The preform carriers are fixed on heavy duty chain, so that the distance between them ‎remains constant, the chain transfer achieved by special indexing gear which guarantee high precision and ‎repeatability.‎ ‎*-‎Preform heating: The heating process of the preforms takes place in eight heating zones, each individually ‎controlled by thyristor unit. The constant rotation of the preforms guarantees perfect penetration of the heat and ‎an efficient airflow system inside the ovens avoids excessive temperatures on the external walls of the ‎preforms. ‎ ‎*-‎Clamping & Stretch-Blowing: A proven servo mechanical system controls the mold opening and closing. The ‎axial stretching effect is carried out by hydraulically driven stretch rod, while radial stretching is achieved by two-‎stage blowing process with compressed air; this arrangement ensures optimum material distribution throughout ‎the bottles walls. ‎ ‎*-‎Bottles unloading: Finished bottles are picked up by special grippers that place them on the outlet pneumatic ‎conveyor then they can be fed to the air conveyor or to the storage silo.‎ *****