Glue spreader for belt pulley sand grinding ring

The utility model relates to a glue spreader for a belt pulley sand grinding ring. The glue spreader is characterized by comprising a rack (1), wherein a control cabinet (17), two upright posts (3), a motor (19), a glue cylinder (10) and a starting switch (16) are respectively connected to the rack; a linear sliding rail (24) and a fixing plate (5) are connected to the upright posts by virtue of a horizontal adjusting seat; a connecting plate (26) and a cylinder (6) which are connected with each other are arranged on the linear sliding rail and the fixing plate; the connecting plate is connected with dispensing valves (7); a single-line glue outlet pipe (8) and a double-line glue outlet pipe (9) are connected to the two dispensing valves, respectively; and an output shaft of the motor is connected with a rotating tray (20) which is correspondingly matched with the single-line glue outlet pipe and the double-line glue outlet pipe. The glue spreader disclosed by the utility model has the advantages that the glue spreading is controlled by the cylinder and the motor, the gluing automation is realized, the one-key operation is convenient, a coated glue layer is uniform and consistent, the gluing speed is high, and the efficiency is high.