Roll stands for simple roll replacement
AssigneeAktiebolaget Amals Mekaniska Verkstad
InventorBengt A. Andreasson
Life of this patent
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Abstract
A roll stand for rolls of sheet material allowing exchange of rolls has been invented, wherein the full rolls may be entered into or removed from the roll stand sideways. The roll spindles (16, 17) are at one of their ends journalled stiffly in a first roll holder gable (14), while the other gable (15) comprises at least two supporting arms (26, 27) with supporting bearings (46, 47) for the other ends of the roll spindles. Means (33, 29, 44) are provided to individually loosen the supporting arms from the spindles and moving them aside to make possible the entry or removal of a full roll onto or from the exposed spindle making use of a carriage or the like.
Claims10
A roll stand for rolls of sheet material wound on bobbins, each bobbin having an axis and an axial hollow core, allowing exchange of a bobbin in a first position, having a full roll of sheet material wound thereon with an empty bobbin in a second position, said roll stand comprising roll holder means, having an axis of rotation, for supporting a bobbin having a full roll of sheet material wound thereon in a first position and supporting an empty bobbin in a second position, said roller holder means rotatable about said axis of rotation to exchange said bobbin having a full roll of sheet material in said first position with said empty bobbin in said second position;
- and machine frame means for supporting said roll holder means for rotation about said axis of rotation;
- wherein said roll holder means comprises:
- a horizontal center shaft having an axis, said center shaft journalled in bearings in said machine frame means for rotation about said center shaft axis;
- a first gable and a second gable, said first and second gables being horizontally spaced apart and connected to said horizontal center shaft for rotation therewith;
- at least two spaced apart horizontal roll spindles, each roll spindle having an axis parallel to said center shaft axis and being rotatable about said axis, each spindle having a first end and a second end, said first ends rotatably supported by said first gable and said second ends rotatably supported by said second gable, each of said spindles cocoaxially receivable within the axial hollow core of a respective bobbin, said bobbins rotatable together with said respective spindles;
- said first gable rigidly connected to said center shaft, said first ends of said spindles stiffly journalled in said first gable;
- said second gable comprising at least two supporting arms, each supporting arm having an inner end and an outer end, said outer end provided with a support bearing detachably connected to said second end of a respective spindle for supporting said second end, said supporting arms being individually movable between a first arm position, wherein said support bearing is connected to said second end of a respective spindle for support thereof, and a second arm position, wherein said support bearing is detached from said second end of the respective spindle and said arm is moved aside so as to not interfere with the axial movement of a bobbin having a full roll of sheet material wound thereon when said bobbin is coaxially aligned with said respective spindle;
- and
- activating means for moving said arms individually between said first position and said second position.
Dependencies are inferred from the claim text.