Web twister removal process
AssigneeThe Procter & Gamble Company
InventorsMartin Kranich, Oliver Lenz
Life of this patent
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Abstract
An apparatus for detecting and eliminating a twister in a running web of flexible material comprises a catch section (5) for twisters (22), which extends between a web guide gap (6) on the inlet side and a web guide gap (7) on the outlet side; a rotor (9), which is controllable in rotation about an axis parallel to the web running direction (4) and which houses the web guide gap (6) on the inlet side; a scanner arrangement (13) for detection of a twister (22) that has entered the catch section (5); and a control unit (12), which, upon detection of a twister (22) by the scanner and detection arrangement (13, 15), triggers the drive (10) of the rotor (9) for rotation of the web guide gap (6) on the inlet side and thus for untwisting the twister (22).
Claims10
An apparatus for detecting and eliminating a twister in a running web of flexible material in the manufacture of sanitary articles, comprising
- a catch section for twisters, which extends between a web guide gap on the inlet side and a web guide gap on the outlet side;
- a rotor, which is controlled in rotation about an axis parallel to the web running direction and which houses the web guide gap on the inlet side;
- a scanner and detection arrangement for detecting a twister that has entered the catch section;
- and
- a control unit, which, upon detection of a twister by the scanner arrangement, triggers the drive of the rotor for rotation of the web guide gap on the inlet side and thus for untwisting the twister.
Dependencies are inferred from the claim text.