Method and device for producing hollow bodies of plastic
AssigneeKrones AG
InventorsBernhard Dünzinger, Klaus Voth
Life of this patent
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Abstract
A process and a device for producing hollow bodies of plastic by stretch-blow molding heated parisons, in which the parisons are inspected before being heated and at least some of the defective parisons are heated and are not separated out until after being heated. This method and the respective device can be implemented at low cost and with low space requirements and it has only a minor negative effect on output of finished hollow bodies.
Claims11
A method of producing hollow bodies (H) of plastic by stretch-blow molding heated parisons (V), where the parisons are inspected and defective parisons are sorted out, the method comprising:
- inspecting the parisons (V) before heating the parisons;
- heating the parisons (V) which can be transported;
- and
- sorting out at least some defective parisons (V) after heating the parisons.
A device for producing hollow bodies (H) from plastic by stretch-blow molding heated parisons (V), the device comprising:
- a heating station (2),
- a blow molding station (1) that is situated downstream of the heating station,
- an inspection station (3) that is situated upstream of the heating station, and
- a first sorting station (4) which is controllable by the inspection station (3), the first sorting station situated between the heating station (2) and the blow molding station (1) for sorting out defective parisons (V).
Dependencies are inferred from the claim text.