Gradually-peeling type passive peeling device for photocuring 3D printer

Abstract

The invention relates to a gradually-peeling type passive peeling device for a photocuring 3D printer. The gradually-peeling type passive peeling device comprises a printing head; a resin groove is correspondingly formed in the lower face of the printing head; the lower side of the printing head is in matched connection with an L-shaped printing tray; and the end of one lateral wall of the printing tray is connected to the printing head, and the other lateral wall of the printing tray is of a cantilever structure. Due to the fact that the L-shaped printing tray is additionally arranged on the lower side of the printing head, an original 3D printing device is little modified. The printing tray can enable a curing layer and a resin groove coating to break away in a bent deformation or inclined manner, and original face peeling is changed into line peeling. Due to the fact that an inclined angle ranging from 0 degree to 45 degrees is generated during peeling, the peeling force is effectively reduced. Meanwhile, an upward folded edge is arranged at the end of the cantilever of the printing tray, so that printed products are effectively prevented from being scratched in peeling. Thus, the resin groove coating is protected, the service life of the coating is prolonged, and the accuracy and the quality of the 3D printed products are improved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a gradual-off passive stripping device for a light-curing 3D printer. Background technique [0002] 3D printing technology is based on the computer three-dimensional design model, through software layering, using laser, hot-melt, light and other methods to stack and bond special materials layer by layer, superimposed molding to manufacture physical products. 3D printing molding technology is still evolving, and the materials used are also diverse. Among the various molding methods, the light curing method is a relatively mature method. [0003] The photocuring method uses the principle that the photosensitive resin is cured after being irradiated by ultraviolet light to carry out material additive molding. It has the characteristics of high molding precision, good surface finish, and high material utilization rate, and is more and more accepted by people. [0004] In the ph...

AI Technical Summary

Problems solved by technology

If the bonding strength provided by the tray surface is not enough, the large adhesion force when the tray is lifted will cause the resin layer (base layer) that has just been cured to be unable to be lifted together, and all or part of it will be stuck to the bottom of the resin tank, resulting in printing failure.

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