MACHINE FOR MANUFACTURE OF HOLLOW BODIES BY BLOWING-OUT Russian patent published in 1999 - IPC

FIELD: machines for manufacture of hollow bodies or vessels of thermoplastic blanks by blowing out. SUBSTANCE: machine uses at least one device for heating the blanks, assemblage of moulding stations with means for reception of blanks and a rotary device for transfer of heated blanks. The transferring device is positioned between the blank heating device and moulding stations. Blank grippers and holders are uniformly arranged in the circumference of the transferring device, they are intended to grip each heated blank and transfer it to the moulding station. The moulding stations are fixed in circumference arc and furnished with means for extraction of ready-made articles each. The blank transferring device is made in the form of a wheel aligned with the circumference arc, on which the moulding stations are positioned. Besides, the wheel has radially arranged levers, whose ends carry blank grippers and holders, whose number is multiple of the number of moulding stations. The heated blank transferring device provides for successive gripping of each blank out of their heating device and simultaneous feed of these blanks to the means for reception of the moulding stations. EFFECT: reduced number of rotating masses, reduced idle time of each functioning cycle, during which the mould remains in the open position. 7 cl, 2 dwg