Device for web removal from a cylinder
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United States of America Patent
Stats
-
Jul 9, 1985
Grant Date -
N/A
app pub date -
May 24, 1983
filing date -
May 25, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a device for a web, which can be removed from a cylinder (3), said web preferably being a paper web. A band-shaped doctor blade (5), which is designed to extend along the mantle surface (3A) of the cylinder, and which is made possible to be fed in the longitudinal direction of the blade, brings about the removal of the web. The device makes possible a rational and simple forward feed and change of the doctor blade (5), when said blade is worn during its bearing against the mantle surface (3A) of the cylinder, and the time of cost consuming interruptions in connection with the outfeed of the web is thereby reduced, and also the size of the plant is reduced. The blade (5) can be collected round a winding-up mechanism (13) formed as an expandable chuck (14), which is connected with a driving means, which is adapted to feed the band-shaped doctor blade (5) at such a chosen speed that it moves with a multiple of the time calculated for the wear of the band in order to make possible a reciprocating feed until the calculated degree of wear is reached.
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