Vamp machine easy to maintain and adjust

The invention belongs to the technical field of textile equipment, and particularly relates to a vamp machine easy to maintain and adjust. The vamp machine comprises a rack as well as a needle cylinder, a sinker cap, a half disc, yarn feeding assemblies, a first power assembly, a second power assembly and a third power assembly which are arranged on the rack; a supporting seat is arranged on the rack; a mounting ring is hinged to the supporting seat; the multiple sets of yarn feeding assemblies are evenly distributed on the mounting ring in the circumferential direction; and the half disc is hinged to the supporting seat and is coaxial with the mounting ring. When the vamp machine operates normally, the mounting ring covers the sinker cap, and the half disc is located in the mounting ring. In order to observe the internal condition of the machine at any time, the supporting seat and the mounting ring are arranged, the half disc and the mounting ring are hinged to the supporting seat, and the yarn feeding asse