Combing roller of spinning machine

The utility model relates to a combing roller of a spinning machine, which is provide with a combing tooth group assembled by combing tooth slices, distance slices, and series members; the combing tooth group is supported on two adjacent supporting arms extended in a radial direction, a bearing face and a built-in groove are respectively arranged on the front and back of the combing tooth group, the front and the back of the supporting arm are symmetrically provided with a supporting face for supporting the combing tooth group and a built-in tenon matched with the built-in groove, and end covers for positioning the combing tooth group are arranged on both sides of the roller body. Besides, combing teeth are arranged on the combing tooth slices, and each combing tooth has a working angle and a tool angle. The utility model is mainly characterized in that the combing tooth face on the combing roller is assembled in an axis and a circumferential directions of the combing tooth slices, thus the utility model is characterized in that the service life of the combing teeth is prolonged, the adaptability is strong, and the maintenance is convenient.