Rotary stretch blow molding machine for blowing PET bottles from
preforms. Preforms are poured from a container into the feed hopper
via a tilting device. From there, the preforms are fed out via an
ascending belt with electronically controlled speed and are
transported to the blow molding machine in a uniform orientation via a
chute and loading star wheel. The shape and size of the preforms are
checked and defective preforms are ejected before they are fed to the
heating boxes via a mechanical star wheel. In the heating boxes, the
preforms are preheated with infrared lamps. They are continuously
rotated to ensure symmetrical heat distribution. Fans prevent
overheating on the outside. Finally, the preform temperatures are
checked using an optical pyrometer. Grippers feed the preforms to the
blow wheel and remove them from it. The blow molding unit works with
crocodile molds,” in which expansion along the longitudinal axis is
supported by a stretching rod. The preforms are then blown into PET
bottles. The stretch-blown bottles are removed from the cavities by
grippers and conveyed to the ejector., Additional title: V51233327
rotational molding machine, Capacity: 18000 bo/h, Number of cavities:
8 pcs., Number of bottles to be ejected per stop: 202 pcs., Blow
pressure: 30 bar, Power: 58 kW, Voltage: 400 V, Frequency: 50 Hz,
Water: 4 bar, Compressed air: 360 Nm3/h at 7 bar, Weight: 16700 kg,
Formats: 0.5 l; 1.0 l; 1.5 l PET bottles, Features: Preform feed
hopper with tilting device for containers, inclined belt conveyor for
preforms, preform inspection, heating boxes, blow wheel; bottle
ejector; visualization on screen