Method and apparatus for forming a tubular yarn carrier

Details Method and apparatus for forming a tubular yarn carrier Method and apparatus for forming a tubular yarn carrier

1991-06-11

1992-06-09

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Tube making

Frustoconical tube

493159, B31C 702, B31C 1102

Patent

active

051202948

ABSTRACT:
A method and apparatus are disclosed for forming a tubular yarn carrier of the type adapted to have a yarn wound thereon to form a yarn package, and which includes an inturned annular end portion which is adapted to support the carrier on an internal spindle of a winding machine. The method of forming the inturned annular end portion includes inwardly turning one end of a tubular body member and so as to cause the end to be inwardly turned about an arc of about 180.degree., and while concurrently guiding the inwardly turned end radially outwardly into contact with the inside wall surface of the tubular member. The method results in the formation of a frusto-conical end portion which essentially locks against the inside wall surface of the carrier and thus prevents the inturned end portion from opening up during use.

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patent: 4700834 (1987-10-01), Martinez
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