Preparation method for multiple brazing filler metal rings

The invention discloses a preparation method for multiple brazing filler metal rings. The preparation method comprises the following steps that welding sticks which are machined and subjected to heat treatment are wound on a rotating support and are automatically fed to the part between an upper set of guide wheels and a lower set of guide wheels through a power device, and the upper set of guide wheels and the lower set of guide wheels reversely rotate to enable the welding sticks to be conveyed to a forming assembly at a constant speed in a parallel mode. The forming assembly comprises a center cutter and a top cutter. By adjusting the distance between the center cutter and the top cutter, the entered welding sticks automatically form the brazing filler metal rings, and finally, material cutting is carried out through a material cutting device. The material cutting device comprises a controller and a stamping knife. In a controller, the number of circles of the needed brazing filler metal rings is set in ad