Precise gear reducer for plastic uptake forming all-in-one machine

The utility model discloses a precision gear reducer for a plastic uptake forming all-in-one machine, which comprises an input end cover and a box body connected with the input end cover, an input shaft is arranged in the input end cover, and deep groove ball bearings are arranged at two ends of the input shaft. A first-stage driving gear, a first-stage driven gear, an arc gear shaft, a first arc gear, a second arc gear, a third-stage driving gear and a third-stage driven gear are arranged in the box body, the input shaft is connected with the first-stage driving gear, the arc gear shaft is connected with the first-stage driven gear and the first arc gear, the first-stage driven gear is meshed with the first-stage driving gear, and the second-stage driven gear is meshed with the third-stage driven gear. The second arc gear is meshed with the first arc gear, the second arc gear is connected with a third-level driving gear, the third-level driving gear is meshed with a third-level driven gear, the third-level d