Device and method for controlling the gap between base and resin tank of dlp light-curing 3D printer

A 3D printer and resin tank technology, applied in the field of 3D printing, can solve the problems of damage to the resin tank, large gap between the base and the resin tank, inconsistent thickness of tempered glass, etc., and achieve the effect of high reliability and simple control method

Active Publication Date: 2019-06-21
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the position of the sensor is not installed accurately, or the thickness of the tempered glass is inconsistent, it will cause two results
One is that the gap between the base and the resin tank will be too large
Second, after the base is in contact with the resin tank, it still moves downward and damages the resin tank
Both of the above results will cause the processing failure of the molded part

Method used

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  • Device and method for controlling the gap between base and resin tank of dlp light-curing 3D printer
  • Device and method for controlling the gap between base and resin tank of dlp light-curing 3D printer

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 As shown, the device for controlling the gap between the DLP light-curing 3D printer base and the resin tank includes: a DLP projector 7 installed under the workbench 6, and the DLP projector 7 projects upward; a resin tank is fixed above the workbench 6, Photosensitive resin 3 is housed in the resin tank, and the inner bottom surface of the resin tank is made of toughened glass 5, and the silica gel coating 10 is evenly coated on the toughened glass 5 upper surface, and the film (using Teflon film 4 in this embodiment) is pasted on On the surface of the silicone coating 10, the projection light of the DLP projector 7 shines on the surface of the photosensitive resin 3 through the resin tank; the tempered glass 5 is a high-strength, transparent glass; the silicone coating 10 is a transparent, elastic Chemical materials are evenl...

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Abstract

The invention discloses a device and method for controlling the gap between a base of a DLP photocuring 3D printer and a resin tank, including a workbench, a DLP projector is arranged under the workbench, and the DLP projector projects upward; The resin tank is filled with resin; the Z-axis slide table is also fixed on the workbench, and the Z-axis slide table is connected to the base extending into the resin tank, the pressure sensor is fixed on the base, and the DLP projection The machine, the pressure sensor and the Z-axis sliding table are all connected with the controller. The control method for the gap between the base and the resin tank of the DLP light-curing 3D printer of the present invention is simple and highly reliable, and the control of the gap between the base and the resin tank can be easily realized by controlling the pressure value between the inner bottom surface of the resin tank and the base , to ensure that the gap between the base and the resin tank meets the requirement that the cured resin completely adhere to the base.

Description

technical field [0001] The invention relates to a device and method for controlling the gap between a base of a DLP photocuring 3D printer and a resin tank, and belongs to the technical field of 3D printing. Background technique [0002] DLP light-curing 3D printing technology is a technology that uses digital light processing (DLP) technology to use a projector to solidify liquid resin layer by layer to manufacture physical parts. This technology can quickly produce very fine parts. It has broad application prospects in many fields, such as industrial product concept design, rapid mold manufacturing, medical applications and so on. [0003] When the DLP light-curing 3D printer is working, the cured resin adheres to the base, and as the base moves up, it is separated from the resin tank to prepare for the next layer of resin curing. Whether the cured resin can adhere to the base will directly determine whether the molded part can be molded smoothly. The software part tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/124B29C64/20B29C64/393B33Y30/00B33Y50/02
CPCB33Y30/00B33Y50/02
Inventor 赵学进张承瑞张德辉
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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