DEVICE FOR WARNING ON OVERLOAD OF CRANK PRESS Russian patent published in 2004 - IPC

FIELD: press-forging plant, in particular, devices warning on overload of crank press. SUBSTANCE: the device has a cavity filled with liquid and is provided with a body communicating with the mentioned cavity, outer and inner plungers located in the body with a support on springs of various rigidity, microswitch and an air cylinder controlled from the master controller of the crank press. The piston of the air cylinder can influence on the outer plunger. The inner plunger is installed for influence on the microswitch. The cavity filled with liquid is located in the section of the press cross-head loaded by the working force so as to perceive the elastic deformation. EFFECT: enhanced precision, reliability and simplified structure. 1 dwg