Web guide control unit, web processing apparatus and method for operating the same
AssigneeApplied Materials, Inc.
InventorStefan HEIN
Life of this patent
Estimating the term…
Abstract
A web guide control unit for guiding a web is provided. The web guide control unit includes a web guide control unit for guiding a web. The web guide control unit includes a guide roller. The guide roller includes an adjustment unit and two tension measurement units for measuring the tension of the web at a first location and a second location of the guide roller. The present disclosure also provides a web processing apparatus with at least one web guide control unit as described herein is provided. A method for guiding a web by means of the web guide control or the web processing apparatus is also disclosed.
Claims20
A web guide control unit for guiding a web, the web guide control unit comprising a guide roller, wherein the guide roller comprises:
- an adjustment unit;
- two tension measurement units for measuring the tension of the web at a first end and a second end of the guide roller with the second end being opposite to the first end;
- a controller for controlling the adjustment unit;
- and
- a data connection for supplying the measured tension from the first end of the guide roller and the tension measured on the second end of the guide roller to the controller.
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A web processing apparatus comprising at least one web guide control unit, wherein the web guide control unit includes a guide roller, wherein the guide roller comprises:
- an adjustment unit;
- two tension measurement units for measuring the tension of the web at a first end and a second end of the guide roller with the second end being opposite to the first end;
- a controller for controlling the adjustment unit;
- and
- a data connection for supplying the measured tension from the first end of the guide roller and the tension measured on the second end of the guide roller to the controller.
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A method for guiding a web by means of a web guide control unit, the web guide control unit comprising a guide roller, wherein the guide roller includes an adjustment unit and two tension measurement units for measuring the tension of the web at a first end and a second end of the guide roller, a controller for controlling the adjustment unit, and a data connection, the method comprising:
- measuring the tension of the web acting on the first end and the second end of the guide roller, thereby receiving tension data, wherein the second end is opposite to the first end;
- adjusting the position of the guide roller by moving the first end or the second end of the guide roller;
- and
- supplying the measured tension from the first end of the guide roller and the tension measured on the second end of the guide roller via the data connection to the controller, wherein the adjusting is based on the measured tension data.
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Dependencies are inferred from the claim text.