Rotary printing cassette unit suspended from frame
AssigneeTetra Laval Holdings & Finance S.A.
InventorsIngvar Andersson, Bengt Hersenius
Life of this patent
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Abstract
The plural cylinders comprising a printing unit in a rotary printing press, are mounted for synchronous rotation within a single frame structure, aligned under the impression cylinder, such that the frame structure including the cylinders is removably securable to the printing press as a cassette unit. Each cylinder is rotatably journalled within a bearing housing, which is displaceable on a vertical bearing rail. A hydraulic cylinder is disposed under the lowermost bearing housing for lifting and lowering the cylinders, to selectively raise them into engagement or lower them out of engagement.
Claims13
A printing unit for a rotary printing press in which a web to be printed is caused to be conveyed via at least one rotating impression cylinder past said printing unit for printing on such web, said printing unit comprising a plurality of cylinders rotatably mounted for synchronous rotation within a single frame structure, and including a plate cylinder adapted to press against said web passing intermediate said impression cylinder and said plate cylinder, said single frame structure comprising a cassette displaceable from such rotary printing press and adapted to be mounted to such printing press in a suspended position hanging from means for attaching said cassette to such printing press without any means for supporting said cassette from underneath so that a floor area under such printing press is devoid of any supporting structure.
A printing unit for a rotary printing press in which a web to be printed is caused to be conveyed via at least one rotating impression cylinder past said printing unit for printing on such web, said printing unit comprising a plurality of cylinders rotatably mounted for synchronous rotation within a single frame structure, and including a plate cylinder adapted to press against said web passing intermediate said impression cylinder and said plate cylinder, said single frame structure comprising a cassette displaceable from such rotary printing press and adapted to be mounted to such printing press in a suspended position hanging from means for attaching said cassette to such printing press, said cassette being displaceable from said rotary printing press along a vertical bearing rail.
Dependencies are inferred from the claim text.