Expandable abnormal self-detection steel belt powder spreading system and powder spreading method

Abstract

The invention provides an inflatable abnormal self-detection steel belt powder spreading system and a powder spreading method. The expandable abnormal self-detection steel belt powder spreading system includes: a powder spreading motion mounting base plate (1), a driving motor ( 2), left motion drive unit (3), right motion drive unit (4), powder drop box unit (5), powder spread sheet unit (6) and detection unit (7). The advantages are: (1) During the powder spreading process, it is possible to promptly and effectively discover the abnormal spheroidization protrusions in some local areas of the processed parts, and automatically stop the powder spreading process in a timely and effective manner, until the abnormal protrusions are re-grinded After that, continue to spread the powder, so as to avoid the failure of powder spreading caused by abnormal protrusions, and ensure the reliability, stability and efficiency of metal melting 3D forming. (2)) also has the advantages of simple structure, low cost and easy popularization and use.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping equipment, and in particular relates to a powder spreading system and a powder spreading method for an inflatable abnormal self-detecting steel belt. Background technique [0002] The metal powder rapid prototyping printer can make a section with a certain micro-thickness and a specific shape each time according to the shape of the part, and then bond the sections of each layer layer by layer to obtain the three-dimensional part that needs to be manufactured. Metal powder rapid prototyping printers have been widely used in many fields such as machinery manufacturing because they can directly manufacture solid parts from computer three-dimensional design without any hard tools. [0003] One of the key systems of the metal powder rapid prototyping printer is the powder spreading system. In the prior art, the steel block powder spreading mechanism is generally used. During the powder spread...

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Problems solved by technology

[0003] One of the key systems of the metal powder rapid prototyping printer is the powder spreading system. In the prior art, the steel block powder spreading mechanism is generally used. During the powder spreading process, the steel block powder spreading mechanism generally has the following problems: the function is very single , only a simple powder spreading operation can be performed, and when some local areas of the processed parts have spheroidized abnormal bulges, the steel block powder spreading mechanism will continue to spread powder on the abnormal bulges, so it is impossible to find out in time The spheroidization of the processed parts is abnormally raised, resulting in the inability to accurately form the parts, which seriously wastes the subsequent powder spreading process and part forming process

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