The utility model relates to the technical field of glue pumping, especially to a glue pumping device for PCB production and
processing, which comprises a suction cylinder, a
piston plate is slidably arranged inside the suction cylinder, a sliding rod is fixedly arranged at the upper end of the
piston plate, a pressing rod is fixedly arranged at the upper end of the sliding rod, a limiting cylinder one is fixedly arranged at the lower end of the suction cylinder, the glue suction
pipe is inserted into the glue bucket, and then the glue suction
pipe is rotationally fixed through the spiral fixing ring; then the pressing rod can be pressed up and down, so that the
piston plate is driven by the sliding rod to move up and down inside the suction cylinder to pump glue; when the piston plate moves up, the glue enters the suction cylinder through the glue suction
pipe and opens the plugging ball head one due to the negative pressure state inside the suction cylinder, spring two drives the plugging ball head two to block the
discharge port of the suction cylinder, so as to avoid the
backflow of glue, and spring one drives the plugging ball head one to block the glue suction pipe when it is pressed down, so as to open the plugging ball head two and make the glue flow out of the glue outlet pipe.