Winding – tensioning – or guiding – Tension control or brake – Supply controlled
Reexamination Certificate
2003-05-22
2008-08-19
Kim, Sang (Department: 3654)
Winding, tensioning, or guiding
Tension control or brake
Supply controlled
C242S421400
Reexamination Certificate
active
07413139
ABSTRACT:
The control device comprises: at least one member (12; 12X) for regulating the speed of advance on the weblike material; a central control unit (41); a guiding roller (31) with mobile axis, over which the weblike material is run; and a position transducer (39) for detecting the position of the guiding roller (31) and for generating a position signal for controlling the speed of said weblike material. The guiding roller (31) is supported in a controlled position, and associated thereto is at least one sensor (37) for detecting a load (F) applied by the weblike material (N) on the guiding roller (31). In addition, an actuator (43) controls a displacement of the guiding roller according to a feedback signal generated by the sensor (37). The actuator is controlled so as to make up for variations of the load of the weblike material by moving the axis of the guiding roller, and the member for regulating the speed of advance of the weblike material (5) is controlled by said central control unit (41), according to the position signal, so as to maintain the axis of the guiding roller (31) in a position that is on average constant.
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Benvenuti Angelo
Montagnani Franco
Breiner & Breiner L.L.C.
Fabio Perini S.p.A.
Kim Sang
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