Plastic recovery device for medical injector

The invention discloses a medical injector plastic recovery device, and belongs to the technical field of plastic recovery, the medical injector plastic recovery device comprises a box body device, the box body device is provided with a driving device, a moving device and a needle withdrawing device, the driving device is used for driving the moving device to slide along the box body device, and the moving device is used for driving an injector to be disassembled; the needle pulling device is used for pulling out the needle head of the injector and recycling the needle head. The driving device can drive the moving device to slide along the box body device, the needle cylinder, the piston core rod and the needle head are separated through a series of actions and are recycled respectively, and the recycling efficiency is high; the clamping mechanism can cancel clamping of the needle cylinder at the two ends of the bottom box, the clamping state of the needle cylinder is kept at the other portions, and the needl