Photocureable 3D printer and resin bath for same

A 3D printer and light-curing technology, which is applied in the direction of additive processing, etc., can solve the problems of 3D printer production efficiency, semi-permeable membrane wrinkle deformation, and light-curing precision reduction, etc., to achieve improved user satisfaction, low cost, and improved printing efficiency effect

Active Publication Date: 2015-12-02
GOLD ARRAY TECH BEIJING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause wrinkling and deformation of the semi-permeable film covering the bottom of the photosensitive resin pool or the LCD display unit, which will reduce the accuracy of photocuring. or DLP type 3D printer) sticking occurs, and eventually the resin pool is damaged
[0004] Therefore, the photocuring 3D printers currently used have printing intervals when each layer of photosensitive resin is cured, so that the heat can be dissipated to avoid the above problems, which greatly affects the production efficiency of the 3D printer.

Method used

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  • Photocureable 3D printer and resin bath for same
  • Photocureable 3D printer and resin bath for same
  • Photocureable 3D printer and resin bath for same

Examples

Experimental program
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Effect test

Embodiment 1

[0040] refer to figure 1, this embodiment provides a resin pool 1 for a photo-curing 3D printer, which includes a bottom wall 11, which is arranged on the bottom wall 11 and forms a peripheral wall 12 of the first chamber 15 with the bottom wall 11. The bottom wall 11 and the peripheral wall 12 can be of separate design, or can be integrally formed. The bottom wall 11 is provided with a first hole 17 and a second hole 18 . The first hole 17 and the second hole 18 are located on the left and right sides of the bottom wall 11 . A support plate 13 is also provided in the first chamber 15 . The periphery of the support plate 13 is fixedly connected with the peripheral wall 11 , and a second cavity 16 is formed between the support plate 13 and the bottom wall 11 . The second chamber 16 is located within the first chamber 15 . The support plate 13 is a separate component, and may be integrally formed with the peripheral wall 11 . A semi-permeable membrane 14 is covered on the s...

Embodiment 2

[0044] refer to image 3 , this embodiment provides another resin pool 1' for a photo-curing 3D printer, which is similar in structure to the resin pool 1 in Example 1, except that the support plate 13 is replaced by an LCD display unit 13'. Therefore, this resin pool is especially suitable for 3D printers based on LCD light-curing 3D printer technology. In addition, a heat dissipation plate 19 is also provided at the lower part of the bottom wall 11 . The heat dissipation plate 19 and the bottom wall 11 enclose a third chamber 20 . The light source 21 is arranged on the heat dissipation plate 19 and is located in the third chamber 20, and the light beam emitted by the light source 21 can be directly irradiated to the LCD display unit 13' through the transparent bottom wall 11, and then the light beam is irradiated on the LCD display unit 13' according to the image displayed by the LCD display unit. The liquid photosensitive resin in a chamber 15 is cured into a correspondin...

Embodiment 3

[0048] refer to Figure 5 and Image 6 , this embodiment provides another resin pool 1" for a light-curing 3D printer, which basically adopts the structure of the resin pool provided in Example 2, except that the heat dissipation plate 19 has a fourth resin pool formed inside it. The chamber 23 has a third hole 24 and a fourth hole 25 that communicate with the fourth chamber 23. It should be understood that the fourth chamber 23 may be the structure of the heat dissipation plate 19 itself, or may be provided by other components. It is enclosed with the heat dissipation plate 19. A heat dissipation fan is installed on the upper part of the heat dissipation plate 19.

[0049] When in use, the water inlet pipe 6 of the liquid container 4 can be connected with the second hole 18 first, the water outlet pipe 5 of the liquid container 4 can be connected with the fourth hole 25, and then the first hole 17 and the third hole 24 can be connected with the connecting pipe 7. . The wat...

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Abstract

The invention provides a resin bath for a photocureable 3D printer. The resin bath comprises a bottom wall, a peripheral wall and a supporting plate. The bottom wall is provided with a first hole and a second hole; the peripheral wall is arranged on the bottom wall and forms a first cavity with the bottom wall; the supporting plate is parallel to the bottom wall and disposed in the first cavity; the four sides of the supporting plate are connected to the periphery wall; a second cavity located in the first cavity is formed between the supporting plate and the bottom wall; and the first hole and the second hole are communicated with the second cavity. By the resin bath, the second cavity is filled with cooling water fully, and heat gathered by the resin bath (especially gathered at the bottom wall of the resin bath) is absorbed circularly by the cooling water. The resin bath is simple in structure, low in manufacturing cost and good in cooling effect, achieves the purpose of cooling without changing of external structure of existing resin bath, and has high generality.

Description

technical field [0001] The invention relates to the field of photo-curing 3D printers, in particular to a resin pool with a cooling device and a 3D printer using the resin pool. Background technique [0002] Existing light-curing 3D printers have resin tanks for holding liquid photosensitive resins. In order to prevent the cured object from sticking to the bottom of the resin pool, in the SLA type or DLP type photo-curing 3D printer, a semi-permeable membrane that can transmit oxygen can be covered on the inner surface of the bottom wall of the photosensitive resin pool. In the LCD type photocuring 3D printer, the LCD display unit is arranged on the bottom wall of the photosensitive resin pool, then a semi-permeable film that can transmit oxygen can be covered on the upper surface of the LCD display unit. [0003] In order to increase the speed of light curing and reduce the curing time of each layer of photosensitive resin, it is usually necessary to select a light source ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00
Inventor 许蓓蓓李厚民刘振亮张韬朱凯强
Owner GOLD ARRAY TECH BEIJING LLC
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