Apparatus and method for heating plastic preforms with spatially resolved temperature detection
AssigneeKrones AG
InventorsUlrich Lappe, Jochen Hirdina
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Abstract
An apparatus for heating plastic preforms, having a transport device which transports the plastic preforms along a predetermined transport path, having at least one heating element which is arranged along the transport path of the plastic preforms in order to heat the plastic preforms during their transport, wherein the apparatus has a temperature detection device which is configured to detect a temperature of the plastic preforms in a spatially resolved manner.
Claims11
An apparatus for heating plastic preforms, having a transport device which transports the plastic preforms along a predetermined transport path, having at least one heating element which is arranged along the transport path of the plastic preforms configured to heat the plastic preforms during their transport,
- wherein the apparatus has a first temperature detection device configured for detecting a temperature of the plastic preforms in a spatially resolved manner, wherein the apparatus is adapted to also detect an integral temperature of the heated plastic preforms and to determine when the integral temperature of certain plastic preforms deviates from a target temperature, wherein
- not only the fact that a temperature deviation exists is detected, but also a location of the temperature deviation so that a subsequent blow moulding process is adapted to adjusting for the temperature deviation and the corresponding plastic preform is blown with different blowing parameters, wherein in the case of a deviation of the integral temperature, the plastic preform is marked with a shift register, together with information about the amount of deviation compared to a reference, so that the temperature profile of the plastic preforms is used to make a prediction about the container to be produced in the future.
A method for heating plastic preforms, wherein the plastic preforms are transported along a predetermined transport path by a transport device and are heated during their transport by at least one heating element which is arranged along the transport path of the plastic preforms, wherein the step of detecting a temperature of the plastic preforms in a spatially resolved manner is detected by a first temperature detection device, wherein an integral temperature of the heated plastic preforms is detected and a deviation of the integral temperature of certain plastic preforms from a target temperature is determined, wherein
- not only the fact that a temperature deviation exists is detected but also a location of the temperature deviation, so that a subsequent blow moulding process is adapted to adjusting for the temperature deviation and the corresponding plastic preform is blown with different blowing parameters, wherein in the case of a deviation of the integral temperature, the plastic preform is marked with a shift register, together with information about the amount of deviation compared to a reference, so that the temperature profile of the plastic preforms is used to make a prediction about the container to be produced in the future.
Dependencies are inferred from the claim text.