▎ 摘　　要

NOVELTY - The utility model relates to the technical field of printing device, especially relates to a quantitative ink supply device for graphene heating material printing, by setting the device, the operation is simple, it can automatically supply the ink to the ink supply barrel, saves the labour and improves the practicability; comprising a printing device, an ink supplying barrel and a nozzle, the ink supplying barrel is installed in the printing device, the nozzle is installed at the bottom end of the ink supplying barrel and is connected with the ink supplying barrel; further comprising a first motor, a gear, an inner screw sleeve, a bearing, a screw rod, a pressing plate, a first contact switch, a contact switch, a hose, a suction pump, a bottom plate and a material box, the first motor is installed on the top end of the ink supply barrel, the gear is installed at the output end of the first motor, the inner screw sleeve is rotatably installed on the top end of the ink supply barrel through a bearing, the upper part of the outer side of the inner screw sleeve is provided with an outer gear ring, the outer gear ring is engaged with the gear; the material box is installed on the top end of the bottom plate, the top end of the material box is connected with an ink injection opening, the first contact and contact switches are electrically connected with the first motor and the suction pump.