Centering adjusting device of injection molding machine

The utility model belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine centering adjusting device which comprises a machine frame and a center shaft, a supporting seat is installed on the machine frame through a bolt, an eccentric shaft sleeve is installed on the center shaft, the supporting seat comprises two vertical guide rails, and the two vertical guide rails are arranged in parallel. The two vertical guide rails are jointly connected with a center shaft in a sliding mode, the bottom of the center shaft is connected with a horizontal adjusting mechanism, supporting blocks are integrally formed at the bottoms of the vertical guide rails, and mounting blocks are integrally formed at the bottom ends of the supporting blocks. The internal threaded pipe can rotate by driving the polygonal adjusting ring to rotate, then height adjustment is achieved, adjustment is labor-saving, the operation space is large, and operation is convenient. 本实用新型公开的属