Feeding thin foil-like material into a gap between a pair of rotatable rolls
AssigneeDavy McKee (Poole) Limited
InventorsHugh M. Ross, Peter G. Grocock
Life of this patent
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Abstract
In a processing device which includes a pair of rotatable rolls and a support for supporting a coil of foil-like material, a device is provided for feeding the leading end of the outer turn of the coil of foil-like material into the gap between the rolls. The device comprises a structure which is movable along a path which brings it close to the periphery of the coil and to the roll gap. The structure includes suction apparatus for picking up the outer turn of the coil and apparatus for blowing air over a surface of the leading end of the foil to cause the leading end to tauten and enter into the roll gap.
Claims12
Apparatus for feeding the leading end of the outer turn of a coil of web material into a gap defined between a pair of rotatable rolls, comprising:
- a pair of rotatable rolls having a gap defined therebetween;
- means for supporting a coil of web material at a location spaced from said pair of rotatable rolls;
- a structure having a length comparable to the width of said web material;
- means for moving said structure between said coil of web material and said pair of rotatable rolls so as to move said leading end of said outer turn of said coiled web material from said coiled web material location to said gap of said pair of rotatable rolls;
- suction means mounted upon said structure for grasping said outer turn of said coiled web material at a predetermined distance rearwardly of said leading end of said web material;
- and
- means mounted upon said structure for blowing air past said leading end of said web material so as to properly orient said leading end of said web material relative to said gap defined between said pair of rotatable rolls and thereby facilitate the feeding of said leading end of said web material into said gap defined between said pair of rotatable rolls.
Dependencies are inferred from the claim text.