Photocuring 3D printer

Abstract

The invention relates to the technical field of 3D printing equipment, and discloses a photocuring 3D printer which comprises a forming platform and a material box and further comprises a boundary plate, a connecting groove connected with the forming platform is formed in the middle of the boundary plate, an energy absorption bag is arranged at the bottom of the boundary plate, the boundary plate is filled with liquid, and the energy absorption bag communicates with the boundary plate. According to the photocuring 3D printer, the amount of resin contained in the material box is always in a small state, the pressure on a release film at the bottom is reduced, deformation of the release film is reduced, secondly, the energy absorption bag at the bottom of the boundary plate has high energy absorption capacity, the liquid level can be rapidly made to be calm, the influence on forming is reduced, and in addition, the production efficiency is improved. The distance between the forming platform and the forming layer is judged by observing the height of the liquid level in the pipe, so that the consistency of zero setting each time is ensured, the forming precision is improved, on the other hand, the boundary plate also limits the maximum displacement of the forming platform, and the printer can be protected from being crushed.

Description

technical field [0001] The invention relates to the technical field of 3D printing equipment, in particular to a photocuring 3D printer. Background technique [0002] Light-curing 3D printing technology mainly includes DLP technology, SLA technology and LCD technology. Their working mechanism is inseparable from the process of imaging, demoulding and superposition of resin pool release film. In order to facilitate the detachment of photosensitive resin products, it is necessary to The bottom of the cartridge is covered with a release film to reduce the adhesion of the photosensitive resin on its surface. [0003] The release film is located at the bottom of the material box. During the process of light curing the resin, the gravity of the resin will cause the deformation of the release film and affect the molding accuracy of the part. Furthermore, during the molding process, the peeling of the cured layer During the feeding process with the next layer to be cured, the resin...

AI Technical Summary

Problems solved by technology

[0003] The release film is located at the bottom of the material box. During the process of light curing the resin, the gravity of the resin will cause the deformation of the release film and affect the molding accuracy of the part. Furthermore, during the molding process, the peeling of the cured layer During the feeding process with the next layer to be cured, the resin liquid level will fluctuate, which will aggravate the deformation of the release film and further affect the accuracy of the part

[0004] Secondly, before 3D printing, the leveling work is very important. In the existing leveling process, the conventional method uses A4 paper to slowly adjust the forming platform, and judge whether it reaches the zero position according to the resistance of pulling out the A4 paper. On the one hand, the adjustment The result varies from person to person, and it is highly random, which affects the molding accuracy. On the other hand, if the adjustment is too fast, the printer will be damaged.

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