APPARATUS FOR MANUFACTURE OF HOLLOW PRODUCTS OF DIFFERENT VOLUME Russian patent published in 1999 - IPC

FIELD: production of hollow articles by blowing method. SUBSTANCE: apparatus has framework carrying set of replaceable pairs of mold halves with mold moving mechanism, device for sealing preforms of low-volume or high-volume articles with respective sealing members connected with stems of two pneumatic cylinders, and preform stretching device with cylinder having stem. Apparatus is further provided with connecting plank and devices for attaching pneumatic cylinder stems on plank. Receptacle positioned in central part of plank and adapted for receiving sealing device for high-volume articles. Stretching device pneumatic cylinder stem is positioned in inner cavity of sealing device for displacement relative to sealing device. Open slots are extending along plank edges and adapted for receiving attachment units. Apparatus allows wide range of bottles to be blown from preforms of different size. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 3 cl, 5 dwg