Glue spraying tool for veneer of composite board

The utility model relates to the technical field of glue spraying machines, in particular to a composite board veneer glue spraying tool which can stir and mix main glue and auxiliary glue and improve the matching effect of the main glue and the auxiliary glue so as to improve the bonding effect of boards, can limit the boards with different widths in the conveying process, reduces the deviation condition of the boards and improves the production efficiency. The working reliability of the device is improved; comprising a bottom plate, two first fixing plates, a lead screw, a sliding block, a spraying pipe, a gear motor, two second fixing plates, a mixed feeding assembly and a limiting assembly, the two first fixing plates are fixedly installed on the upper end face of the bottom plate in a bilateral symmetry mode, the lead screw penetrates through and is rotationally installed on the two first fixing plates, and the sliding block is in threaded connection with the lead screw; the spraying pipe penetrates thro