Apparatus for forming a curl on an end of a tubular member

Details Apparatus for forming a curl on an end of a tubular member Apparatus for forming a curl on an end of a tubular member

1994-12-29

1997-03-25

Warden, Robert J.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Rod or tubular preform

425402, 493159, 493454, 264310, B28B 2192

Patent

active

056142307

ABSTRACT:
An apparatus is disclosed for forming a curl on an end of a tubular member. The apparatus includes first and second members. The first member is capable of holding the tubular member and has an external shoulder beyond which the first end of the tubular member extends a set amount. The second member is coaxially aligned with and is engageable with the first end of the tubular member. The second member includes a pilot which is sized to be inserted into the first end of the tubular member. The second member also includes a sleeve which surrounds the pilot and cooperates with the external shoulder when the second member engages the first end of the tubular member to form a curling chamber. The second member further includes a curling element positioned between the pilot and the sleeve which is capable of contacting the first end of the tubular member. The apparatus further includes means for rotating one of the members and means for moving the members into engagement. As the members engage, the curling element contacts the first end of the tubular member and forms a curl thereon within the confines of the curling chamber.

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