Device for forming plastics material preforms into plastics material containers with a variable output rate

US8936458B2 · kind B2 · utility

Assignee

• KRONES AG · DE

Inventors

• Konrad Senn · Regensburg, DE
• Rainer Englbrecht · Kelheim, DE
• Heinz Humele · Thalmässing, DE

Key dates

• Filing date: Sep 30, 2011
• Grant date: Jan 20, 2015
• Expiry date: Nov 5, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C2049/7879
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A device for forming plastics material preforms into plastics material containers includes a plurality of blowing stations, each comprising blow moulds, inside which preforms can be formed into containers. The device includes an admission arrangement to expose the preforms, for the forming thereof, to a free-flowing medium, and stretching rods to extend the preforms in the longitudinal direction thereof. The device includes a transport arrangement which transports the blowing stations with the preforms along a first predefined transport path, and a control arrangement which controls movement of the stretching rods and exposure of the preforms to the freeflowing medium so that predefined sub-steps of the forming process are carried out during transport of the preforms along the first path. Sub-steps of the forming process can be carried out irrespective of geometric position of the preforms along the first path, and an output rate of the device can thus be changed.