Multi-spraying-head 3D printer

The embodiment of the utility model discloses a multi-spraying-head 3D printer. The multi-spraying-head 3D printer comprises two spraying head devices and transmission devices, wherein the two spraying head devices are symmetrically arranged at the two sides of a working platform; the transmission devices drive the spraying head devices respectively; inclined angles ranging from 5 degrees to 85 degrees are formed between the spraying head devices and the working platform; the transmission devices drive the spraying head devices to move in a three-dimensional space; and the spraying head devices are provided with one or more than one spraying head. The multi-spraying-head 3D printer disclosed by the utility model has the beneficial effects that a control system respectively controls the transmission devices to move the spraying head devices arranged at the two sides of the working platform, and the spraying heads of the two spraying head devices finish simultaneous and independent printing and forming, so that the efficiency of 3D printing is greatly improved; and since each spraying head device is provided with a plurality of spraying heads for outputting printing materials with different colors, products with rich colors can be printed, and the transmission is carried out by thread screws, so that the transmission accuracy is improved and the transmission is more reliable. The multi-spraying-head 3D printer disclosed by the utility model has the advantages of high printing speed, rich printable color and high forming accuracy.