Bidirectional double-punching can body drawing machine

A bidirectional double punch stretching machine body, characterized in that: with the same two punch driving mechanism in the structural design, the cans form a bidirectional dual flush tank structure of a stretcher by a common crankshaft design . Reaction inertial force and the forming process can body punch sets the program will share a crankshaft drive mechanism, so as to be symmetrical layout arrangement, the balance bar, slide, etc. punch member in motion generated , thereby significantly reducing the load of the support bearing of the crankshaft, and bearing design to reduce processing requirements, extend the service life. Further, the present invention can be realized not only a device body two conventional stretching machine capacity, but also in comparison with two conventional stretcher body further saving manufacturing cost of the device, the energy consumption is reduced.