Tube expansion device
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United States of America Patent
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Jul 5, 2016
Grant Date -
Oct 1, 2015
app pub date -
Jun 16, 2015
filing date -
Dec 18, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a tube expansion device which can prevent decreases in productivity by causing only side regulating bodies to be moved easily and surely, even if the left and right ends of a heat exchanger increases or decreases, or the thickness of a heat exchanger is increased because an insertion tube becomes multiple columns from single column; and, in the case of tube expansion for a heat exchanger in long total length, and even if an expanding and a contracting rod of a cylinder which are reciprocating movement means of a reference platform or a rod-shaped male screw momentarily receives the weight of a stripper plate itself through said reference platform, can prevent deflection and breakage of said expanding and contracting rod and said rod-shaped male screw and breakage of cylinder's seal portion or breakage, etc. of a screw thread by supporting a reference platform at multiple points.
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