Gluing device capable of sufficiently discharging glue

The utility model discloses a gluing device capable of fully discharging glue, which comprises a barrel body, a glue discharging device, a glue discharging device, a glue discharging device and a glue discharging device, the discharging pipe is detachably mounted at the opening end of the cylinder body; the discharging head is detachably mounted at the end part of the discharging pipe; the screw rod is in threaded connection with the sealed end of the cylinder body, and the end part of the screw rod extends into the cylinder body; the piston plate is rotationally arranged at the end, located in the barrel, of the screw. And the material extruding bulge is formed on the surface of the piston plate and is matched with the inner cavity of the discharging pipe. The device has the beneficial effects that the discharging head is detachably connected, so that the discharging head can be conveniently detached and washed, the discharging pipe is sealed by matching with the sealing cover, the discharging pipe can be pr