Notching apparatus for a double cut die set
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United States of America Patent
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Feb 18, 1992
Issued Date -
N/A
app pub date -
Dec 27, 1990
filing date -
Jan 16, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cut-off die set of the double cut type, in which sections of tubing are successively severed from a length of tubing, utilizing a notching cut followed by a severing cut. A rack and pinion assembly is used to transform the vertical reciprocating motion of the upper and lower platen into the horizintal reciprocating motion used for the notching stroke. The rack and pinion assembly comprises a rack mounted to the upper platen and a gear sector mounted to the lower platen, the gear sector includes a drive roller which engages a cam track on the cross slide. As the upper platen and lower platen are vertically reciprocated, the rack member causes the gear sector to rotate, sliding the drive roller through an arcuate path. Movement of the drive roller through the arcuate path causes the cross slide to move in a reciprocating manner in relation to the reciprocating motion of the upper and lower platens.
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