Ring throwing device with swing arm

The utility model relates to a swing arm annular throwing device which comprises an adjusting assembly, the adjusting assembly comprises a main supporting arm arranged in a rotating mode, a front arm is hinged to the main supporting arm, a guide rail is arranged on the side face of the main supporting arm, a sliding block is arranged on the guide rail, an adjusting rod is connected to the sliding block, and the adjusting rod is hinged to the front arm; the clamping assembly comprises a supporting frame, the supporting frame is connected with the front arm, a plurality of rolling wheels are symmetrically arranged on the supporting frame, a first driving source is connected to the supporting frame, and the first driving source drives any rolling wheel to rotate; the swing assembly comprises a second driving source and a transmission rod, the second driving source is vertically arranged on the table top of the annular polishing machine, the output end of the second driving source is connected with an eccentric w