Automatic web guide roller cleaning device
AssigneeBaldwin-Japan Ltd.
InventorsAkira Hara, John MacPhee
Life of this patent
Estimating the term…
Abstract
A multiplicity of web guide rollers in a printing machine incorporate motors therein provided with respective reduction units and each reduction unit is provided on the side of an output shaft with a mechanism such as a clutch, so that the rollers can rotate normally, reversely or idly. When the web guide roller is cleaned, the roller is rotated in a direction opposite to the running direction of the web, whereby the contamination on the surface of the roller is wiped off by the web. Since the rotating directions of the respective rollers are selected by the controller in association with running paths of webs, so that automatic cleaning of the web guide rollers can be effectively performed.
Claims6
A web guide roller with an automatic cleaning device comprising:
- a roller body for guiding a web;
- shafts intermediately jointed and rotatably supporting said roller body at opposite ends thereof;
- side frames for fixing said shafts;
- a motor whose stator is fixed to the interior of said roller body;
- and
- a reduction unit having an input shaft thereof connected to a rotor of said motor and an output shaft thereof connected to one of said shafts for rotatably supporting said roller body at opposite ends thereof;
- wherein there is provided a mechanism for allowing one of the shafts for rotatably supporting said roller body at the opposite ends thereof and said output shaft of said reduction unit to be engaged with or released from each other.
A web guide roller with an automatic cleaning device comprising:
- a roller body for guiding a web;
- shafts intermediately jointed and rotatably supporting said roller body at opposite ends thereof;
- side frames for fixing said shafts;
- a motor whose stator is fixed to the interior of said roller body;
- and
- a reduction unit having an input shaft thereof connected to a rotor of said motor and an output shaft thereof connected to one of the shafts for rotatably supporting said roller body at the opposite ends thereof;
- wherein there is provided a mechanism for allowing said output shaft of said reduction unit to restrain or release the rotation thereof, said mechanism being fixed to one of said side frames bearing said output shaft of said reduction unit.
Dependencies are inferred from the claim text.