DIE FOR PUNCHING HOLES IN WALLS OF HOLLOW PRODUCTS WITH BOTTOM

摘要

Use: the metal forming, preferably for punching holes in the walls of the hollow articles and with a bottom opening therein. SUMMARY OF THE INVENTION: stamped with a punch matrix and mandrel assembly is provided with its rotation mechanism of the longitudinal movement of the «i Delhi matrix relative to the mandrel. The mechanism is designed as a guide 37 with a curvilinear and rectilinear portions, the pusher 38 and the puller 3. When lifting the upper guide plate 11 curved portion 37 affects the axle 39 and the force transmitted therethrough to bias the stripper 3 and the workpiece 9 with the mandrel-matrix 4 and 8. The locking fingers obtained when punching burr by moving the workpiece 9 along the mandrel-die 4 takes the cutting edge of the mandrel 4. The preform-matrix 9 with the mandrel-mold 4 is rotated with the guide 13 rectilinear and curvilinear portions h Res ratchet wheel 22 and the rod portion 5. The curved guide 13 located below the curved sections of the guide 37. 9 yl. // /