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US 4,727,741 AGranted
Cross-rolling mill
AssigneeMitsubishi Jukogyo Kabushiki Kaisha
InventorsYoshinori Ushifusa, Shinji Takubo, Toshihiro Fukuzaki
Life of this patent
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Abstract
A rolling mill has upper and lower rolls with axes which cross each other. These two rolls are pivoted at ends diametrically opposite to each other. Only rolls chocks mounted at the non-pivoted ends of the rolls are allowed to be hydraulically moved the same distance in the same direction, i.e., the rolling direction or the reverse direction, in a symmetrical relation with respect to the center line of the rolling mill.
Claims6
A cross-rolling mill comprising:
- a first roll rotatably mounted in the mill about a rotational axis thereof, said first roll having a first end at a driver side of the mill and a second end at a work side of the mill;
- a second roll rotatably mounted in the mill about a rotational axis thereof and coacting with said first roll for rolling a workpiece travelling in a rolling direction, the rotational axis of said first roll extending in a first plane that is parallel to a second plane in which the rotational axis of said second roll extends and a third plane in which the rolling direction extends, said second roll having a first end adjacent the first end of said first roll at the driver side of the mill and a second end adjacent the second end of said first roll at the work side of the mill, the mill having a center line passing through a point generally midway along the length of and between said first and second rolls and extending in a direction transverse to the direction in which said rolls extend,
- said first roll being pivotal in the mill in said first plane only about the first end thereof at the driver side of the mill,
- said second roll being pivotal in the mill in said second plane only about the second end thereof at the work side of the mill;
- and
- pivoting means for pivoting said first roll in the mill only about the first end thereof and said second roll only about the second end thereof so that an axis intersecting the center line of the mill and the rotational axes of said first and said second rolls is repositionable along the center line while continuing to intersect the center line.
3 more elements
Dependencies are inferred from the claim text.