3d printer with double feeding cylinders

Abstract

The invention relates to the field of 3d printers, in particular to a 3d printer with double feeding cylinders. The 3d printer comprises a rack and a machine shell arranged outside the rack. A forming cylinder is arranged in the middle of the lower portion of the rack. The first material cylinder and the second material cylinder are arranged on the left side and the right side of the forming cylinder correspondingly. A laser emission mechanism is arranged in the position, located over the forming cylinder, of the rack. The rack is further provided with a powder feeding mechanism which can move back and forth above the first material cylinder, the forming cylinder and the second material cylinder. The first material cylinder is internally provided with a first lifting platform. The second material cylinder is internally provided with a second lifting platform. The forming cylinder is internally provided with a third lifting platform. Compared with the prior art, the laser emission mechanism of the 3d printer with the double feeding cylinders does not need to be moved, and the printing precision can be improved; and in addition, the 3d printer is simpler in structure, lower in manufacturing cost and higher in powder laying efficiency, so that the working efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of 3D printers, in particular to a 3D printer with double feeding cylinders. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, realizes the printing of three-dimensional models through the process of automatic numerical control layer-by-layer material accumulation. Compared with traditional processing technology, 3D printing technology does not need to make additional molds, and can directly process finished products. Moreover, it can overcome the special structural obstacles that cannot be realized by traditional machining, can realize the simplified production of any complex structural parts, and can automatically, directly and accurately transform design ideas from CAD models into models or devices with certain functions. [0003] At present, 3D printing technology can be divided into: laser selective sintering forming technology SLS, laser selective melting for...

AI Technical Summary

Problems solved by technology

[0004] However, when the existing laser emitting mechanism moves between the longitudinal direction and the horizontal direction for scanning, there will be slight vibrations, resulting in a decrease in printing accuracy, and the guide rails used for the laser generating mechanism to guide the horizontal and vertical directions will also be damaged after a long period of operation. Abrasion will occur, which will further reduce the printing accuracy

Images