A pay -off and lift lazytongs for over -and -under type chopping block chamfering apparatus

The utility model belongs to the technical field of machinery, a a pay -off and lift lazytongs for over -and -under type chopping block chamfering apparatus is disclosed, including a synchronous chain with be used for installing the sprocket of synchronous chain, equidistantly on the synchronous chain set up a plurality of dogs, the interval of dog equals with the reciprocating stroke of pay -off propelling movement subassembly, pay -off propelling movement subassembly below is provided with piston rod ejector pad position accuse cylinder down, and the lower end of the piston rod of ejector pad position accuse cylinder installs the ejector pad, when the piston rod of ejector pad position accuse cylinder stretches out downwards, and on pay -off propelling movement subassembly direction of motion, ejector pad and dog part overlapping at least, the installation have one to be driving sprocket in the sprocket of synchronous chain, the drive sprocket installation axle among driving sprocket and the chopping block