Tube cutoff die set

Details Tube cutoff die set Tube cutoff die set

B - Operations, Transporting

23

D

164/25, 164/51

B23D 31/00 (2006.01) B23D 21/00 (2006.01) B23D 25/04 (2006.01)

Patent

CA 1274169

ABSTRACT OF THE DISCLOSURE A method and apparatus for severing successive lengths of tubing in a die set in which the movement of an upper die shoe is translated by mechanism to clamp the tubing on a lower die shoe, move a notching blade across the clamped tubing to slot the tubing, and pass a cutoff blade through the slot to sever the tubing. Use of a lever arm pivoted to one of the die shoes in combination with a cam on the other die shoe optimizes horizontal movement of the notching blade relative to vertical movement of the die shoes. In a preferred form, the cutoff blade is passed through a slot in the notching blade holder. The die set can be used in apparatus where the tubing is intermittently supplied, or, as in a tabling mill, a continuous length of tubing is moved during the severing process.

524651

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