Control system for light hardening quick forming resin level

A control system and resin liquid technology, applied in liquid level control, control/regulation system, non-electric variable control, etc., can solve the problems of resin liquid level fluctuation, affecting the quality of molded parts, slow resin replenishment, etc., to achieve precision and The effect of increasing the speed, shortening the liquid level stabilization time, and overcoming the inclination of the workpiece

Inactive Publication Date: 2007-01-24
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the flow of resin in the tank during the molding process causes the workpiece to tilt in one direction, and the change of overflow flow makes the above tilt uncertain, which affects the quality of the molded part.
In addition, there are also phenomena such as slow resin replenishment speed and fluctuations in the resin liquid level.

Method used

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  • Control system for light hardening quick forming resin level
  • Control system for light hardening quick forming resin level

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] see figure 1 , the resin liquid level control system that is used for photocuring rapid prototyping process of the present invention comprises a molding resin tank 1 of splendid attire photosensitive resin, is provided with the workbench 2 that drives workpiece 3 to move up and down in molding resin tank 1; 1 is provided with an auxiliary tank 14 for replenishing resin; a reflective laser position sensor 5 for detecting the position of the liquid level is also provided above the resin liquid level 4; the reflective laser position sensor 5 is connected with the computer 6, and the received The liquid level position signal is sent to the computer; the computer 6 is connected with the driver 8 and the motor 9 through the control card 7, the output end of the motor 9 is connected with the sinker compensation mechanism, the sinker compensation mechanism is connected with the sinker 13, and the motor 9 is connected with the driver 8 , The control card 7 receives the control s...

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Abstract

The control system includes following parts and structure: a molding resin storage tank for loading photosensitive resin, and worktable capable of moving work piece up and down setup inside the resin storage; accessorial storage for supplying resin setup on the resin storage; reflecting type laser position sensor in use for detecting position of liquid level setup above liquid level of resin; being connected to computer, the sensor sends signal received from position of liquid level to computer. Through control card, the computer is connected to drive, and motor. Compensation mechanism of sinking block is connected to the output end of motor. Sinking block is connected to compensation mechanism of sinking block. Through drive, control card, motor receives control signal sent from computer and realizes rotation. Compensation mechanism of sinking block drives sinking block up down to adjust liquid level in the resin storage to keep stable liquid level.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a resin liquid level control system used in a photocuring rapid prototyping process. Background technique [0002] Light-curing rapid prototyping uses photosensitive resin as a raw material, and the computer controls the scanning trajectory of the ultraviolet laser to solidify the resin to form a shape. First, the tank is filled with liquid photosensitive resin, and the ultraviolet laser beam emitted by the laser is scanned point by point on the surface of the photosensitive resin according to the layered section information of the part under the control of the deflection system. The thin layer of resin in the scanned area is irradiated by ultraviolet light. Instead, photopolymerization occurs, curing to form a thin layer of the part. After that, the workbench moves down by a thin layer thickness, so that a new layer of liquid resin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D9/12
Inventor 王伊卿卢秉恒周宏志赵万华李涤尘丁玉成
Owner XI AN JIAOTONG UNIV
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