Device for shearing rod sections on an automatic multi-stage cross-fed press

An assembly for shearing rod sections with a movable cutter carriage carrying a shearing blade between a resting position and a shearing position, said assembly comprising:

• (a) a reciprocating impact head for driving the cutter carriage,
• (b) means for moving the impact head into contact with an adjacent end of the cutter carriage to effect motion of the cutter carriage to the shearing position,
• (c) means for biasing the cutter carriage toward the impact head and the resting position to effect the return stroke motion of the cutter carriage, and
• (d) means for breaking contact of the impact head with the adjacent end of the cutter carriage on completion of the return stroke to draw the impact head a predetermined distance back to a starting position from which the impact head is ready to strike said adjacent end of the cutter carriage with considerable momentum upon activation of said moving means,
• (e) an annular flange being disposed on the end of the cutter carriage nearest the impact head,
• (f) the path of motion of said annular flange being limited by stops defining a resting end position and a shearing end position,
• (g) said biasing means comprises a series of helical springs in compression to effect the return stroke of the cutter carriage,
• (h) said annular flange providing a spring plate for said series of springs.