Device and method for treating hollow bodies
AssigneeSidel Participations
InventorsHervé Pasquier, Arnaud Delaunay
Life of this patent
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Abstract
A device for treating hollow bodies, comprising at least a nozzle and a circuit for setting a pressurized airflow in circulation, having a valve and a first pressure sensor measuring a first pressure; a control distributor of said valve; a line connecting said distributor to said valve; a control unit with a time measurement component; wherein said device comprises a second pressure sensor situated along said line, measuring a second pressure, and wherein said control unit comprises means that are able to determine a differential between the measurement of the first pressure and the measurement of the second pressure as a function of time. The invention also relates to a corresponding treatment method.
Claims20
A device for treating hollowing bodies, comprising:
- a nozzle that opens into a hollow body placed inside a receptacle;
- at least one circuit and means for setting at least one pressurized airflow in circulation in at least one direction within said circuit;
- said at least one circuit comprising:
- at least one valve connected upstream to said nozzle and/or to said receptacle;
- at least one first pressure sensor in the region of said nozzle or in the region of said receptacle, measuring a first pressure;
- said treatment device also comprising:
- at least one control distributor for said at least one valve;
- a line connecting said distributor to said corresponding valve;
- at least one control unit controlling at least one of the different abovementioned components, said control unit comprising at least one time measurement component;
- wherein said device comprises:
- at least one second pressure sensor situated along said line, measuring a second pressure inside said line;
- and
- wherein said control unit comprises
- means that are able to determine at least one differential between the measurement of the first pressure and the measurement of the second pressure as a function of time.
A method for treating hollow bodies, comprising:
- introducing a hollow body into a receptacle closed by a nozzle;
- setting a pressurized airflow into circulation toward the inside of said nozzle and/or of said receptacle by actuation of at least one valve, which is connected upstream to said nozzle or to said receptacle;
- controlling the actuation of said at least one valve by an associated distributor, which is connected to said valve by a line;
- measuring a first pressure in the region of said nozzle;
- wherein
- a second pressure is measured inside said line;
- a differential between the measurement of the second pressure and the measurement of the first pressure is calculated;
- depending on the differential, a response time of said distributor and a response time of said valve are determined.
Dependencies are inferred from the claim text.