Continuous printing laser sintering 3D printer

Abstract

The invention discloses a continuous printing laser sintering 3D printer, and relates to the field of 3D printing, the continuous printing laser sintering 3D printer comprises a base and a shell, the shell is mounted on the base, a partition plate is fixed in the shell, a working cavity is formed above the partition plate, a mounting cavity is formed below the partition plate, and a workbench is slidably mounted in the working cavity; the periphery of the workbench is fixedly sleeved with a sealing sliding assembly, a lifting mechanism is arranged at the bottom of the workbench, a laser sintering assembly is arranged at the top of the working cavity, a powder feeding and scraping mechanism is arranged in the working cavity, and the bottom of a powder leaking hole is connected with a recycling mechanism. The upper portion of the right side of the shell is connected with a gas protection mechanism. The light spring in the sealing sliding assembly extrudes the concentric-square-shaped elastic sleeve, so that the outer wall of the concentric-square-shaped elastic sleeve can make contact with the inner wall of the working cavity all the time, and the sealing performance between the workbench and the inner wall of the working cavity is guaranteed.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a continuous printing laser sintering 3D printer. Background technique [0002] Many contemporary production fields require virtual printing of items before they are produced. Knowing the appearance of the item in advance from the state of the printed item is conducive to observing the printing of the item and then improving it, so the printer has been widely used. use. With the continuous innovation and development of printers, there are already laser 3D printers, which make the printed items more intuitive and three-dimensional. With the development of 3D printing technology, the research on laser sintering technology has become more and more in-depth. The process of laser sintering processing parts is that the powder supply device spreads a certain amount of powder on the worktable, and then the powder is flattened by the scraper, and then the laser head sinters the current layer ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a continuous printing laser sintering 3D printer to solve the problem of poor sealing between the inner walls of the working chamber of the workbench and the up and down movement of the workbench during the use of the laser sintering 3D printer proposed in the background technology. Closely rely on a screw rod at the bottom of the workbench, resulting in poor stability of the workbench during lifting

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