Multifunctional automatic glue spraying device

The utility model belongs to the technical field of glue spraying equipment. The multifunctional automatic glue spraying device comprises a base, workbench, supporting plates in the vertical directionare fixedly arranged at the two ends of the upper end face of the workbench correspondingly. A driving motor is installed on the outer sides of the supporting plates through a fixing frame, a threaded rod is arranged between the two supporting plates, one end of the threaded rod penetrates through the supporting plates and is connected with the output end of the driving motor, a moving block is arranged on the outer side of the threaded rod, a threaded hole is formed in the moving block in a penetrating mode, and the threaded rod is in threaded connection with the threaded hole. A glue storage box is fixedly arranged on the front end surface of the moving block; a glue storage cavity is formed in the glue storage box, a connecting piece is fixedly arranged at the top end of the glue storage box, the bottom end of