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Resin liquid-level control for photo-solidification quick formation and resin coating method and apparatus

A resin liquid, light curing technology, applied in the field of rapid prototype manufacturing, can solve the problems of complex coordination and control, difficult resin liquid level, etc., to improve work efficiency, overcome the reduction of resin coating uniformity and layer thickness accuracy, and easily overcome Damage to workpiece and effects of uneven coating

Active Publication Date: 2007-08-29
GUANGZHOU ELECTRONICS TECH
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Problems solved by technology

[0006] In addition, the above methods of resin liquid level measurement and control and resin layer coating are often independent subsystems in actual use, and the coordinated control between the two subsystems of resin liquid level measurement and control and resin layer coating is relatively complicated.
Therefore, the existing methods are difficult to conveniently realize the precise control of the resin liquid level and ensure the uniformity and layer thickness accuracy of the resin coating layer.

Method used

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  • Resin liquid-level control for photo-solidification quick formation and resin coating method and apparatus
  • Resin liquid-level control for photo-solidification quick formation and resin coating method and apparatus

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Embodiment Construction

[0018] Referring to Fig. 1, the present invention includes: a constant temperature control resin tank with a main tank 1, an additional tank 2 and an overflow port 3 structural design, the main tank 1 is used to hold the photosensitive resin 4 required for workpiece molding, and the additional tank 2 is used for Contains the excess resin 5 that flows out through the overflow port 3 due to maintaining the resin liquid level of the main tank during the workpiece forming process; a micropump 6 is connected through a flexible pipe 7 to transport the resin 5 in the attached tank 2 to the cavity of the scraper It is stored and replenished in the main tank 1, and the computer 19 can control the switch and flow of the micro pump 6. When the resin liquid level 13 of the main tank is higher than the overflow port 3, the excess resin will flow to the auxiliary tank 2 through the overflow port 3 , so as to maintain the resin liquid level of the main tank at the height of the overflow port;...

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Abstract

The invention relates to light solidifying rapid forming photosensitive resin liquid level control and resin bed coating method and device. The method combines the resin liquid level control with the resin bed coating in rapid forming, uses micro pump to inject resin into scraper by flexible duct, and finishes the level control and coating while the scraper is doing horizontal movement on the main channel liquid surface. The invention overcomes the defects of uneven resin coating and low thickness precision. In addition, it has little influence for the resin liquid level fluctuation without waiting to nature flow flat for long time. Thus it can increase work efficiency.

Description

a technical field [0001] The invention belongs to the technical field of rapid prototyping, and mainly relates to the control of the liquid level of photosensitive resin in the light-curing rapid prototyping process and the resin layer coating on the surface of workpieces to be formed. Two background technology [0002] Rapid prototyping technology is also referred to as rapid prototyping technology. Its core is a new digital-based forming technology. It can automatically, quickly, directly and accurately transform design ideas into prototypes with certain functions or directly manufacture parts (workpieces). It is a powerful tool to improve product quality and reduce product cost by shortening the product development cycle as much as possible. Photocuring rapid prototyping is based on the photosensitive resin that can be cured quickly under the light radiation of a specific wavelength. According to the CAD three-dimensional model data of the workpiece, the surface layer of ...

Claims

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Application Information

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IPC IPC(8): B29C67/00
Inventor 李耀棠李伟良赵光华冯洪安刘玉鹏张俊杰
Owner GUANGZHOU ELECTRONICS TECH
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