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Photosensitive resin pool, photocuring 3D (three-dimensional) printer using photosensitive resin pool and printing method

A 3D printer and photosensitive resin technology, applied in the field of 3D printing, can solve problems such as the temperature rise of the beam irradiated part, affecting the quality of solidified solid molding, poor high temperature resistance of silica gel, etc., to achieve improved printing quality, simple structure, and easy separation Effect

Active Publication Date: 2015-09-09
广西玉林市由你造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The photosensitive resin absorbs the beam energy to stimulate the curing reaction, which will release a lot of heat, which will cause the temperature of the beam irradiated part to rise.
The silica gel coated on the inner bottom of the photosensitive resin pool has poor high temperature resistance. After a long time of irradiation, the silica gel layer is prone to aging due to overheating, and its transparency is reduced, which in turn affects the molding quality of the cured entity.

Method used

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  • Photosensitive resin pool, photocuring 3D (three-dimensional) printer using photosensitive resin pool and printing method
  • Photosensitive resin pool, photocuring 3D (three-dimensional) printer using photosensitive resin pool and printing method
  • Photosensitive resin pool, photocuring 3D (three-dimensional) printer using photosensitive resin pool and printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Reference figure 1 with figure 2 The light-curing 3D printer provided in this embodiment has a frame 1 and a middle layer board 2 which is arranged inside the frame 1 and divides the internal space into an upper space 1-1 and a lower space 1-2. A photosensitive resin pool 3 for containing liquid photosensitive resin is provided on the middle layer board 2. A guide rail column 4 is provided along the right side of the frame 1. The guide rail column 4 extends from the lower space 1-2 through the middle plate 2 to the upper space 1-1. The bearing platform 5 is associated with the guide rail column 4 and can move vertically in the upper space 1-1 relative to the photosensitive resin pool 3. The bearing platform 5 and the guide rail column 4 can be matched with a screw and a screw nut seat. Whenever the guide rail column 4 rotates under the driving of a motor, the bearing platform 5 can produce vertical movement. The aforementioned motion coordination can be controlled by a...

Embodiment 2

[0060] Reference Figure 4 with Figure 5 The same parts of Example 2 and Example 1 will not be repeated. The difference is that the bottom inner surface of the liquid photosensitive resin pool 3 is covered with an LCD liquid crystal display unit 13, and the polymer semi-transparent 8 film is covered on the LCD Above the liquid crystal display unit 13. The aforementioned cavity 9 is formed between the polymer semi-permeable membrane 8 and the LCD liquid crystal display unit 13. Similarly, the air pump 10 and the air pump 11 communicate with the cavity 9 through the air inflation pipe 10-1 and the air pump 11-1, respectively. The opening, closing and pattern switching of the LCD liquid crystal display unit are controlled by the control unit.

[0061] The LCD liquid crystal display unit 13 can display the pattern of any cross section of the object 12 to be printed, that is, the shape of the printed thin layer according to the instruction of the control unit. This pattern is compo...

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Abstract

The invention provides a photosensitive resin pool. The photosensitive resin pool comprises a pool body, an oxygen molecule semipermeable membrane located above a bottom wall in the pool body as well as an air inlet and an air outlet, wherein the area of the oxygen molecule semipermeable membrane accords with that of the bottom wall of the pool body, and a cavity is formed between the oxygen molecule semipermeable membrane and the bottom wall of the pool body; the air inlet and the air outlet are formed in the side wall or the bottom wall of the pool body and communicated with the cavity. Besides, the invention further provides a 3D (three-dimensional) printer adopting the photosensitive resin pool and a printing method. The structures of the photosensitive resin pool and the 3D printer are simple, the printing quality is reliable, and the service life is longer. By means of the method, the starting time, the inflating volume and the air extracting volume of an inflation unit and an air extraction unit are correspondingly adjusted, the semipermeable membrane cannot swell while an oxygen molecule layer is formed on the upper surface of the semipermeable membrane, a print object cannot be easily bonded to the semipermeable membrane and is easy to separate, and the contact surface of the print object and the semipermeable membrane cannot be twisted or deformed.

Description

Technical field [0001] The invention relates to the field of 3D printers, in particular to a photosensitive resin pool and a 3D printer using the photosensitive resin pool, and also relates to a 3D printing method. Background technique [0002] At present, the existing light-curing 3D printer has a resin tank for carrying photosensitive resin, and the whole is formed by splicing acrylic plates. In the light curing process, in order to prevent the solidified entity cured on the stage from sticking to the photosensitive resin pool, a layer of silica gel is coated on the inner bottom surface of the photosensitive resin pool. [0003] When working, keep a certain distance between the plane of the stage and the surface of the silicone layer (that is, the thickness of each photosensitive resin curing layer), the gap between the stage and the silicone layer is filled with photosensitive resin, and the photosensitive resin in this gap is sensitive to the light The laser beam on the bottom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00B33Y10/00
Inventor 许蓓蓓刘振亮范轶旸叶山顶王翊坤李厚民
Owner 广西玉林市由你造科技有限公司
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