Continuous cyclic powder spreading structure and additive manufacturing molding equipment

Abstract

The invention discloses a continuous cyclic powder spreading structure and additive manufacturing molding equipment. Side plates and a top plate are arranged on a bedplate. A printing molding cavity is formed by the bedplate and a cylinder body arranged at the lower end of the bedplate. The continuous cyclic powder spreading structure is arranged in the printing molding cavity, and continuous powder spreading in the printing molding process is achieved. Up-and-down movement of a printing substrate in the cylinder body is achieved by utilizing a driving device. Then the printing surface on theprinting substrate is printed and molded by utilizing a light path scanning structure arranged at the inner upper end of the printing molding cavity. Molding through holes are formed in a gear bearingand the middle of the bedplate correspondingly so that it is convenient for light path scanning structure laser and the printing surface on the printing substrate at the lower end of the bedplate tomold. The light path scanning structure is located at the upper end of the continuous cyclic powder spreading structure and can work simultaneously with a powder spreading scraper so that powder spreading and scanning molding are conducted, and that is to say, an efficient printing process that powder spreading is conducted while scanning is conducted can be achieved. By means of the continuous cyclic powder spreading structure and the additive manufacturing molding equipment, molding efficiency of parts is improved; and meanwhile, the printing substrate moves up and down in the cylinder body,the molding area is limited, and the utilization rate of powder is improved.

Description

technical field [0001] The invention belongs to the field of additive manufacturing equipment, and in particular relates to a continuous circulation powder spreading structure and additive manufacturing forming equipment. Background technique [0002] Additive manufacturing technology integrates multi-disciplinary technologies such as new materials, information and manufacturing. It is known as a representative technology that is expected to produce the "third industrial revolution" and is a leading technology for the development of mass manufacturing mode to personalized manufacturing mode. As the most cutting-edge and most potential technology in the entire additive manufacturing system, metal additive manufacturing technology is an important development direction of advanced manufacturing technology. It is suitable for the near-net shape of complex components. The formed parts manufactured by additive manufacturing technology have excellent mechanical properties, are suit...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a continuous cycle powder spreading structure and additive manufacturing forming equipment to overcome the defects that powder spreading and scanning cannot be performed in existing equipment, and to realize simultaneous powder spreading and scanning in the SLM forming process, that is, powder spreading at the same time Efficient printing process with edge scan

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