Single-cylinder injection rotating structure

The utility model discloses a single-cylinder injection rotating structure. The device is used for driving an injection seat to rotate relative to an injection table support plate on an injection molding machine. Wherein the retainer is connected with an injection table supporting plate, and the rotating shaft is connected with an injection seat in an abutting mode. A center through hole for the rotating shaft to penetrate through is formed in the retainer, the rotating shaft comprises a second rotating section and a third rotating section, the diameter of the third rotating section is smallerthan that of the second rotating section, the third rotating section penetrates through the center through hole, the third rotating section is sleeved with the thrust cylindrical roller bearing, andthe two end faces of the thrust cylindrical roller bearing abut against the retainer and the stepped face of the rotating shaft respectively. 本实用新型公开了单缸注射旋转结构，其用于注塑机上驱动注射座相对射台支板转动，包括与射台支板连接的保持架、与注射座抵接的旋转轴、推力圆柱滚子轴承，所述保持架内开设有用于穿