Automatic canning device

The utility model discloses an automatic canning device. The device comprises a cover body, a connecting shaft, a fixing cover, a motor, a first gear, a first chain, a second gear, a second chain, a third gear, a rotary knife, a power line, a switch and an anti-disengaging mechanism. According to the automatic canning device, the anti-separation mechanism is arranged; centrifugal force generated when the rotary knife rotates is buffered by the torsion spring; the received torsion wave power is reduced; the steel balls in the shaft sleeve can ensure the stability of power transmission; the problems that when an existing canning device is used for a long time, due to the fact that bearing force and centrifugal force are large when a rotary knife rotates, control is prone to disengagement after a long time, and potential safety hazards exist are solved, the gasket is arranged, limiting grooves and limiting openings in the gasket can play a good role in limiting and fixing, and the fixityof the gasket in the rota