Equipment and powder conveying device for manufacturing three-dimensional body

Abstract

The invention discloses equipment and a powder conveying device which are used for manufacturing a three-dimensional body. The powder conveying device comprises a transmission device, a powder conveying tank, and an adjusting plate for adjusting the powder conveying quantity; the transmission device is provided with a transmission belt; the powder conveying tank is arranged on the transmission belt; the adjusting plate is arranged on the transmission belt; the distance between the adjusting plate and the transmission belt is a preset distance; and when the transmission device drives the transmission belt to move, powder in the powder conveying tank is conveyed to a preset area located on the transmission belt, and thus a powder spreading instrument flatly spreads the powder in the preset area to a working area. According to the equipment and the powder conveying device which are used for manufacturing the three-dimensional body, the advantages of an upward powder conveying mode and a downward powder conveying mode are combined, the raw material powder can be added at any moment, and the powder conveying quantity can be controlled accurately through the adjusting plate, so that thecontrol on the powder conveying quantity is precise; in addition, the powder is conveyed to the preset area on the transmission belt, so that a heater can illuminate powder more and the preset effectof the powder is further improved.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to equipment and a powder feeding device for manufacturing three-dimensional objects. Background technique [0002] Additive Manufacturing technology (Additive Manufacturing, referred to as AM) is an advanced manufacturing technology with distinctive features such as digital manufacturing, high flexibility and adaptability, direct CAD model drive, fast speed, and rich and diverse material types. The degree of limitation does not require any tooling and molds, so the application range is very wide. As one of the additive manufacturing technologies, Selective Laser Melting (SLM for short) has developed very rapidly in recent years. Its main process is: the powder feeding device sends a certain amount of powder to the work surface, and the powder spreading device will A layer of powder material is laid flat on the upper surface of the formed part of the pist...

AI Technical Summary

Problems solved by technology

The advantage of this powder feeding device is that it works smoothly and can quantitatively control the amount of powder feeding. The disadvantage is that it needs to add a sufficient amount of powder to the powder box at one time, and it cannot be supplemented during work, which results in a large space for the entire equipment and increases the cost of the whole machine.

Images