Apparatus for heating plastic preforms with stationary applicator

US11787090B2 · kind B2 · utility

Assignee

• KRONES AG · DE

Inventors

• Alexander Feigl · Mintraching, DE
• Christian BETZ · Sindelfingen, DE
• Johann Zimmerer · Bernhardswald, DE
• Konrad Senn · Regensburg, DE
• Christian Compera · Sonneberg, DE

Key dates

• Filing date: Sep 6, 2018
• Grant date: Oct 17, 2023
• Expiry date: Nov 16, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27D2003/0068
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus for heating plastic preforms with a transport device which includes holding devices for holding the plastic preforms and wherein the transport path has at least one heating portion inside which the plastic preforms are heated, and with a heating device arranged stationarily at least in portions along the transport path and which heats the plastic preforms transported by the transport device during their transport through the heating portion, wherein the heating device has at least one in particular stationary applicator device which is configured for bombarding the plastic preforms with microwaves to heat them. In the heating portion, the transport device is arranged relative to the applicator device such that at least parts of the holding devices are arranged outside the applicator device, wherein the applicator device is configured to receive several plastic preforms simultaneously for at least some of the time.