Mechanism and method for removing twists in a tube forming machine
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United States of America Patent
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-
Jul 12, 1994
Grant Date -
N/A
app pub date -
Aug 20, 1993
filing date -
Aug 20, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanism and method for counteracting and removing the twist of a rolled metal strip being formed into a tube by a tube forming machine. The mechanism has a frame rotatably mounted to the tube forming machine between the forming rolls and the seam guide. A pair of edge rolls are attached to the frame and are engageable with the opposing longitudinal edges of the rolled metal strip. Backing rolls, also attached to the frame, inhibit the transverse displacement of the rolled metal strip by the engagement of the edge rolls with the longitudinal edges of the metal strip. An adjustment screw rotates the frame relative to the tube forming machine about a longitudinal axis to align the longitudinal edges of the rolled metal strip with a seam guide prior to welding the longitudinal edges to each other.
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