SHEARS FOR SHEET MATERIAL Russian patent published in 2007 - IPC B23D15/14 

FIELD: plastic working of metals, possibly in rolling mill lines for cross cutting of metallic sheets.

SUBSTANCE: shears include mounted in housing lower support in which stationary straight cutter is arranged; drive upper support; cylinder whose body is secured to lateral surface of housing; control system. Shears are provided with additional cylinder whose body is jointly secured to opposite lateral surface of housing. Rods of said cylinder and of additional cylinder are jointly coupled with upper support. Motion drive of upper support is in the form at least of two hydraulic cylinders jointly coupled with upper part of housing and having rods jointly secured to upper support. Control system includes units providing movement of rods of all said cylinders for creating possibility for moving upper support according to preset law.

EFFECT: increased efficiency of shears at simultaneous simplification of their structure.

4 dwg