The invention provides a novel
powder-laying
system for a
selective laser melting and forming device. The novel
powder-laying
system for the
selective laser melting and forming device comprises a worktable, a
powder feeding device, a powder laying device, a
linear motor, a sliding block, a base plate, a guide rail, a Z-direction
servo motor, a lead screw, a lead screw nut, a lifting plate, a connecting rod, a forming cylinder, a heating plate and a
resistance wire heating device; a forming cylinder through hole is formed in the center of the worktable, the guide rail is arranged on the worktable, the sliding block is arranged on the guide rail, and the powder laying device is arranged on the sliding block; the
linear motor is arranged on the right side of the guide rail and drive the powder laying device to conduct a
linear motion, the powder feeding device is arranged on the worktable and is located at the right side of the guide rail, and the forming cylinder is arranged in the forming cylinder through hole; a heating groove is formed in the upper end of the forming cylinder, and the lifting plate is fixed on the lead screw nut which is arranged on the lead screw; the lead screw is connected with a rotating shaft of the Z-direction
servo motor, the connecting rod is arranged on the lifting plate, and the upper end of the connecting rod penetrates through the bottom face of the forming cylinder; and the heating plate is arranged on the upper end of the connecting rod, the base plate is fixed on the heating plate, and the
resistance wire heating device is arranged in the heating plate.