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A kind of photosensitive resin pool and its photocuring 3D printer and printing method

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

Active Publication Date: 2017-07-28
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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  • A kind of photosensitive resin pool and its photocuring 3D printer and printing method
  • A kind of photosensitive resin pool and its photocuring 3D printer and printing method
  • A kind of photosensitive resin pool and its photocuring 3D printer and printing method

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Embodiment 1

[0035] refer to figure 1 and figure 2 , The light-curing 3D printer provided in this embodiment has a frame 1, and a middle plate 2 arranged inside the frame 1 and dividing the internal space into an upper space 1-1 and a lower space 1-2. A photosensitive resin pool 3 for accommodating liquid photosensitive resin is arranged on the middle plate 2 . Along the right side of the frame 1 is the guide rail column 4 , the guide rail column 4 extends from the lower space 1 - 2 through the middle plate 2 to the upper space 1 - 1 . The carrying platform 5 is associated with the guide rail column 4 and can move vertically in the upper space 1 - 1 relative to the position of the photosensitive resin pool 3 . The cooperation between the bearing platform 5 and the guide rail column 4 can adopt the mode of a lead screw and a lead screw nut seat. Whenever the guide rail column 4 rotates under the drive of the motor, the bearing platform 5 can produce vertical motion. The aforementioned m...

Embodiment 2

[0060] refer to Figure 4 and Figure 5 The same part of embodiment 2 and embodiment 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-permeable film is covered with an LCD on the liquid crystal display unit 13. The above cavity 9 is formed between the polymer semipermeable 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 pipeline 10 - 1 and the air suction pipeline 11 - 1 respectively. The opening, closing and pattern switching of the LCD liquid crystal display unit are all 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 according to the instruction of the control unit, that is, the shape of the printed thin layer. This ...

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Abstract

The application provides a photosensitive resin pool, comprising: a pool body; an oxygen molecule semipermeable membrane located above the bottom wall of the pool body, the area of ​​the oxygen molecule semipermeable membrane conforming to the bottom wall of the pool body so as to A cavity is formed between them; an air inlet and an air outlet communicated with the cavity are arranged on the side wall of the pool body or the bottom wall. In addition, the present invention also provides a 3D printer and a printing method using the above-mentioned photosensitive resin pool. The photosensitive resin pool and the 3D printer provided by the invention have simple structure, reliable printing quality and longer service life. The method provided by the present invention adjusts the start-up time, inflation volume and air extraction volume of the inflation unit and the air extraction unit accordingly, which can ensure that the semipermeable membrane will not bulge while the oxygen molecular layer is formed on the upper surface of the semipermeable membrane , not only can make the printed object not easy to stick to the semi-permeable membrane, easy to separate, but also can prevent the contact surface between the printed object and the semi-permeable membrane from being twisted and deformed.

Description

technical field [0001] The invention relates to the field of 3D printers, in particular to a photosensitive resin pool, a 3D printer using the photosensitive resin pool, and a 3D printing method. Background technique [0002] At present, the existing light-curing 3D printer has a resin pool for carrying photosensitive resin, and the whole is spliced ​​by acrylic plates. In the photocuring process, in order to prevent the cured entity cured on the stage from sticking to the photosensitive resin pool, a layer of silica gel is coated on the inner bottom of the photosensitive resin pool. [0003] When working, keep a certain distance between the plane of the stage and the surface of the silica gel layer (that is, the layer thickness of the photosensitive resin cured each time), and the gap between the stage and the silica gel layer is filled with photosensitive resin. The laser beam on the bottom of the resin pool is irradiated and solidified to form a solid layer. [0004] Wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/106B29C64/307B29C64/20B33Y30/00B33Y40/00B33Y10/00
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