Crush roll arrangement for a card web
AssigneeRieter Machine Works, Ltd.
InventorRobert Demuth
Life of this patent
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Abstract
The present invention concerns a crush roll arrangement for a card web with two co-operating working rolls 6 and 10 as used, e.g. for crushing of seed and shell particles contained in a thin card web. At least one of the two rolls 6 and 10 is designed as a hollow member, the cylindrical sleeve 19 of which is pressurized inside and thus deforming in radial direction. By this deformation, which is counteracted by a second roll, the crushing pressure is generated between the working rolls 6 and 10. The sleeve 19 can, among other solutions, be of varying thickness along the longitudinal direction of the roll in such a manner that its radial deformation can be adapted in longitudinal direction along the working rolls 6 and 10.
Claims28
Crush roll arrangement for a card web with two cooperating working rolls characterised in that at least one of the two working rolls is designed as a hollow member, the substantially cylindrical sleeve of which is adapted to be under the influence of a pressurized medium on the roll inside and which is elastically deformable in radial direction, and that a second roll is supported at such distance to counteract the deformation of the deformable roll locally.
A crush roll arrangement for a card web comprising a pair of rolls for crushing impurities in a web passing therebetween, said rolls being rotatably mounted on respective longitudinal axes disposed at a fixed distance from each other during operation of the arrangement, at least one of said rolls having an outer radially deformable cylindrical sleeve and a space within said sleeve to receive a pressurized medium for radial deformation of said sleeve to increase the diameter of said sleeve whereby said sleeve deforms against the other of said rolls to define an area of pressure therebetween.
A crush roll arrangement for a card web comprising a pair of rolls for crushing impurities in a web passing therebetween, said rolls being rotatably mounted on respective longitudinal axis disposed at a fixed distance from each other during operation of the arrangement, at least one of said rolls having an outer radially deformable cylindrical sleeve, a cylindrical body supporting said sleeve on a periphery of said body and a plurality of ducts in said body communicating with said periphery of said body for introducing a pressurized medium between said body and said sleeve for radial deformation of said sleeve to increase the diameter of said sleeve whereby said sleeve deforms against the other of said rolls to define an area of pressure therebetween.
A crush roll arrangement for a card web comprising
- a pair of rolls for crushing impurities in a web passing therebetween, said rolls being rotatably mounted on respective longitudinal axis disposed at a fixed distance from each other during operation of the arrangement, at least one of said rolls being an outer radially deformable cylindrical sleeve;
- and
- means for supplying a pressurized medium to said one roll to radially deform said sleeve whereby said sleeve increases in diameter and deforms against the other of said rolls to define an area of pressure therebetween.
Dependencies are inferred from the claim text.