Trimming device for sheets and bands

摘要

The shear is particularly for sheet-metal, having circular knives on shafts in top and bottom housings. A transverse eccentric between the housings adjusts the gap between the knives and the amount for which they overlap dependent on the thickness and strength of the material. The cutting shear (5) also has circular knives on shafts in top and bottom housings. A frame (25) supports the cutting shear, and gap adjustment is by a reversible transverse eccentric (28) acting between the frame and the top knife (12) of the cutting shear. The eccentric engages with the movable top knife housing (15) at its end towards the knife. This housing can be movably suspended in a gallows-type supporting arm (26) protruding in the lengthwise direction of the strip material being cut. The bottom knife housing (16) of the cutting shear can be fixed to the frame.