High-speed explosion hammer

A high-speed explosion hammer comprising:

• a stationary bed;
• a load-bearing frame mounted in said stationary bed;
• a lower die mounted in said load-bearing frame to accomodate a blank;
• a piston installed in the upper portion of said load-bearing frame and having a piston rod with a free end thereof facing the lower die;
• an upper die arranged coaxially with said lower die at the free end of said piston rod;
• an explosion device arranged over said piston in an upper portion of said load-bearing frame for causing said piston with the upper die to move during the treatment of the blank;
• an upper piston chamber defining an explosion chamber of said explosion device;
• an igniter of explosive mounted in the explosion chamber;
• a hollow casing of said explosion device having the form of a sleeve mounted in said frame for axial adjustment and having an open end defining the explosive chamber;
• an inner space of said casing being communicatable with said explosion chamber;
• a check valve in said inner space for establishing communication thereof with said explosion chamber during the admission thereto of granular explosive fed along a conduit and for closing the chamber upon a blow-up which is effected by application of voltage to the igniter.