Arc-shaped guide groove type turnover device for packaging machine connecting line

An arc-shaped guide groove type turnover device for a packaging machine connecting line comprises a sliding groove base, a sliding groove is formed in the sliding groove base and is in the shape of an arc, the arc length of the sliding groove is 1/4 the length of the circumference of a circle where the sliding groove is located, an inlet conveying belt is arranged on the inlet of the sliding groove, an outlet conveying belt is arranged on the outlet of the sliding groove, a guiding plate is arranged above the inlet of the sliding groove and parallel to the inlet conveying belt, an air cylinder is installed on the outlet of the sliding groove, the moving direction of the air cylinder is parallel to the outlet conveying belt, the stroke of the air cylinder is equal to the width of the sliding groove, and the width and the shape of the cross section of the sliding groove are matched with those of a packaging box to be turned over. Due to the structure, when a product passes through the sliding groove in the shape of a quadrant, the product can be turned over by 90 degrees, and the turning accuracy rate of the product is high and can be 100%; because an air cylinder is arranged at the outlet end of the sliding groove, the product sliding out of the sliding groove can be moved away in time, it is prevented that the sliding groove is blocked, and the product can be smoothly moved to a next working procedure.