Method for manufacturing plastic containers by blow molding
OwnerArnaud Delaunay, Hervé Pasquierinventors
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Abstract
Disclosed is a method for forming blanks made from plastic material into containers, the method including steps of blowing into the blanks in such a way as to form them into containers, then internally degassing the formed containers. In the method, the steps are carried out according to a first cycle at a first rate. Then, during a second subsequent cycle of steps carried out at a second rate slower than the first rate, a time delay is added with respect to the first cycle, during or after degassing, such that the second cycle lasts longer than the first.
Claims20
Method for forming blanks (3) of plastic material into containers (2), the method comprising a cycle of steps including at least steps (44, 46, 48) where the blanks are blown into so as to form them into containers, then the formed containers are degassed internally, wherein:
- said steps according to a first cycle are performed at a first rate (C1), then,
- during a subsequent second cycle of steps being performed at a second rate (C2) that is lower than the first rate, the steps are begun at the same time as for the first cycle, and a delay (Tt) is added relative to the first cycle, during or after the degassing step (48), so that the second cycle is temporarily lengthened relative to the first.
Dependencies are inferred from the claim text.