发明名称 Apparatus for restoring distorted articles to their true cross-sectional shape
摘要 Containers having their bodies made from laminate material, such as paper board/plastic foil/metal foil laminates, readily tend to distort and this results in unreliable application of metal foil closure caps used to seal the mouths of the containers. The present invention provides apparatus for successively advancing cylindrical containers of this type beneath a cap-applying device and for restoring distorted containers to their true circular cross-sectional to enable correct application of the caps to the container mouths. The apparatus comprises two star wheels, having equal pitch circle diameters, which are mounted side-by-side with their axes of rotation parallel and spaced apart by a distance less than the common pitch circle diameter of the two wheels. The latter have equal numbers of part-circular recesses in their peripheries for engaging containers. On one of the star wheels the recesses are fixed while the other is constructed so that the recesses are radially displaceable and are resiliently urged into their radially outermost positions in which their centers of curvature lie on the pitch circle of the star wheel. The star wheels are rotated in opposite directions at substantially equal speeds and so that the recesses are successively disposed in mutually opposed relation. The containers are fed between the star wheels which successively advance them beneath the cap-applying device. Each container is resiliently clamped between opposing recesses as it is advanced beneath the cap-applying device and this serves to restore a distorted container to its true circular cross-sectional shape.
申请公布号 US4212140(A) 申请公布日期 1980.07.15
申请号 US19790032271 申请日期 1979.04.23
申请人 TI FORDS LTD 发明人 POYNTON, BERTRAM G;WAITE, PHILLIP S
分类号 B65B61/24;(IPC1-7):B65B7/28;B21D1/06;B65B63/02 主分类号 B65B61/24
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