Main sliding block mechanism of zipper machine

The invention belongs to the technical field of zipper machines and discloses a main sliding block mechanism of a zipper machine. The main sliding block mechanism comprises a sliding seat, a bottom plate, a cam shaft, a first pressing wheel, a second pressing wheel, a first mounting assembly and a second mounting assembly, the sliding seat is arranged on the bottom plate, the first pressing wheeland the second pressing wheel are installed on the sliding base through the first mounting assembly and the second mounting assembly correspondingly, the cam shaft is rotatably arranged between the first mounting assembly and the second mounting assembly and is provided with a first cam in rolling fit with the first pressing wheel and a second cam in rolling fit with the second pressing wheel, thefirst mounting assembly comprises a first seat body, a first bearing, a first shaft sleeve and a first rotating shaft, the first seat body is connected with the sliding seat, the first rotating shaftis fixedly installed on th