An anti-clogging powder device for forming cylinders of powder-spreading selective melting equipment

Abstract

The invention discloses an anti-clogging powder device for a forming cylinder of a powder-spreading type selective melting equipment, and particularly relates to a buckle design scheme for connecting four thin plates, the main purpose of which is to drive a rectangular ring when the forming substrate descends The four thin plates on the four sides move downwards, and the two adjacent thin plates are connected vertically through the buckles on the four corners of the rectangular ring, and cooperate with the rectangular thin plates at the bottom to form a cuboid forming chamber, so that the formed substrate, formed parts and powder are all placed in it. Compared with the existing forming chamber mechanism, this mechanism separates the forming substrate from the four walls of the forming cylinder through four thin plates, and places the forming substrate and metal powder in a closed groove composed of four thin plates and the bottom thin plate, so that While ensuring that the molding substrate can move downward, the molding substrate and the powder are separated from the four walls of the molding chamber, so as to avoid the powder piled up between the molding substrate and the four walls of the molding chamber, and then powder plugging occurs.

Description

technical field [0001] The present invention belongs to the invention of the anti-clogging powder method for the forming cylinder of the powder-spreading type selective melting equipment, and particularly relates to a design for connecting four rectangular baffles through buckles, which is used to realize the anti-clogging powder purpose of the forming cylinder in the powder-spreading type selective melting equipment . Background technique [0002] The powder-spreading selective laser melting technology is a typical metal 3D printing technology. Its basic principle is that the powder-spreading device evenly spreads the metal powder on the molding substrate, and then the laser (or electron beam) is controlled by the vibrating mirror system to The laid powder layer is selectively scanned and melted. Then the substrate is lowered by one layer thickness, and the powder spreading device performs powder spreading. The above steps are repeated continuously, layer by layer, and fi...

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Problems solved by technology

[0004] The main purpose of the present invention is to solve the problem of forming cylinder plugging powder in selective melting equipment, and specially designed an anti-clogging powder device, which can be installed on the forming cylinder already in use, or can be combined with the forming cylinder Prepare a new molding cylinder to realize the separation of the molding substrate and the molding cylinder wall, thereby avoiding the effect of powder plugging

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