On May 6, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Eskay Technology Co., Ltd. has obtained a project named "Sand 3D Printer", the authorization announcement number is CN109967697B, and the application date is April 2019.

The patent abstract shows that the present invention discloses a sand mold 3D printer, which includes a printing base, crossbeam, ground rail, sand supply system, sand laying beam, printing beam, and work box; The crossbeam is equipped with two or two crossbeams installed parallel to the printing base, the ground rail is set below the crossbeam, the sand supply system is fixed on the crossbeam, the sand laying beam and the printing beam are respectively installed on the crossbeam and slide connected to the crossbeam, and the work box is set on the ground rail and slide connected to the ground rail. The present invention uses a sand supply system with two sand storage tanks for sand supply, which can effectively reduce the volume of the equipment and ensure continuous sand supply; Using a linear motor to drive the printing beam and sanding beam can improve the stability of equipment operation and reduce noise. Two working boxes are used for printing, achieving continuous operation of the equipment and improving printing efficiency.