Machine for manufacturing plastic items by blow moulding
OwnerStylianos Eleftheriouinventor
Life of this patent
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Abstract
The invention concerns a machine for manufacturing plastic items comprising, in series, along the manufacturing line: a rotatable roll (1) of plastic material in the form of at least one strip; a shaper (4) for forming tubes from said strips and means (5) for longitudinally welding said tubes; means (6) for cutting the tubes transversely, arranged so as to form tube sections (10); means for transferring and depositing said sections in holding and moving means; an oven (8) in which said tube sections move; a first turret (9) supporting moulds; means for processing the tube sections in the first turret; means for blowing a pressurised fluid into the moulds; a second turret (14) for discharging the bottles from said moulds.
Claims14
A machine for manufacturing plastic items by blow moulding, the blow moulding machine comprising successively along the manufacturing path:
- a roll of plastic material in the form of at least one strip;
- means for driving said roll in rotation;
- at least one shaper for forming tubes from said strip;
- means for longitudinal welding of said tubes, the longitudinal welding means fixed relative to the movable tubes;
- means for transverse cutting of the tubes, the transverse cutting means arranged so as to form sections of tubes or preforms;
- means for holding and moving the tube sections perpendicular to the longitudinal axis thereof;
- at least one oven wherein said tube sections (preforms) are moved in the oven in a vertical position along a horizontal trajectory;
- a first support turret for molds, wherein the first support turret is rotating at a speed synchronized by a control unit with the speed of the tube sections exiting from the oven in order to place said tube sections in the molds;
- means for processing the tube sections (preforms) at the first turret;
- means for blowing a pressurized fluid into the molds in order to give a definitive shape to the preforms;
- a second turret, wherein the speed of the second turret is synchronized by the control unit with the speed of said first turret and arranged so as to evacuate the shaped preforms from said molds.
Dependencies are inferred from the claim text.