Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

A stepless-adjustment efficient additive manufacturing device for a specially shaped rotary body sand mold, the device comprising an aluminum alloy frame (1), and an ink jet system, a shakeout device, a sand scraping device and a Z-axis rotary lifting movement system, which are arranged on the aluminum alloy frame. In the device, quantitative shakeout and uniform sand spreading are implemented on a rotary printing platform by keeping a shakeout box (7), a printing nozzle (3) and a sand scraping plate fixed, and the rotary printing platform can descend accurately and controllably by means of a ball screw (21) device, thereby spreading sand layer by layer and performing printing layer by layer; in addition, the height by which the rotary platform descends is adjusted steplessly, and resin saturation between molding sand particles is adjusted according to a micro-droplet jet printing grayscale, thereby improving the overall printing speed and strength of a sand mold. Further disclosed is a stepless-adjustment efficient additive manufacturing method for a specially shaped rotary body sand mold. The device achieves, with stepless heightwise adjustment, 3D printing of a specially shaped rotary body sand mold. When manufacturing specially shaped rotary bodies, the specially shaped rotary body sand mold has a high forming efficiency and can manufacture specially shaped rotary bodies with a good quality; in addition, the process cost and waste are reduced.

» Number: WO2023240806A1 (A1)

» Publication Date: 21/12/2023

» Applicant: NANJING UNIV OF AERONAUTICS AND ASTRONAUTICS?[CN]

» Inventor: YANG HAOQIN?[CN]; SHAN ZHONGDE?[CN] (4)

» More Information

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