The utility model discloses a fast light-curing DLP 3D printing device, which comprises a rack and a light source, a reflecting mirror, a resin groove supporting plate, a resin groove supporting plate and a Z-axis motion module mounted thereon. The light source and a reflecting mirror are located at the lower layer of the rack, the resin groove supporting plate is mounted on the upper layer of the rack, the resin groove is located directly above the reflecting mirror, and the Z-axis motion module is connected with a motion forming platform. The center point of the lower surface of the motion forming platform coincides with the center point of the resin groove, and the bottom of the resin groove has a transparent microporous film through which air can penetrate. Air is used as an inhibitor to form a dead zone between the resin groove and the bottom of the resin, so that the resin will not adhere to the resin groove in the curing process, and there is no need to tear repeatedly from top to bottom of the forming platform, so the resin can be pulled up continuously and printed quickly. The micro-porous transparent die uses micro-porous glass or micro-porous plastic film, so that air can be used as a polymer inhibitor without the preparation of oxygen ions and special oxidation penetration window, which can greatly reduce the cost of equipment investment and use.
【技术实现步骤摘要】
一种快速光固化DLP3D打印设备
本技术涉及一种3D打印设备,具体涉及一种快速光固化DLP3D打印设备。
技术介绍
当今社会,传统的工业生产工艺有时候很难满足工业生产的需要,光固化作为一种新型3D打印手段,可以有效的解决上述问题。3D打印作为一种增材制造的方法,相比工业上的减材制造拥有更好的发展前景。现在光固化技术已经应用到各个领域,包括航空航天、建筑、医疗、磨具制造等等。早期的光固化成型技术是采用SLA进行固化,打印速度慢,精度不高,而采用DLP进行光固化成型就大大提升了打印速度和打印精度,但是该技术设备进行打印时,工作平台需不断的上下进行移动撕扯,使得固化树脂层与树脂槽底部透明膜分离,等待树脂再次充满底部时,再次进行固化,所以成型时间较长,并且在反复撕扯过程中打印物体容易产生形变。JohnR.Tumbleston等人在Science上所发表的Continuousliquidinterfaceproductionof3Dobjects所采用的透明薄膜是AF2400所制成的氧离子交换膜。由于氧离子的存在形成成型死区,使固化树脂层与树脂槽底部透明膜不粘连,不需要反复 ...
【技术保护点】
1.一种快速光固化DLP 3D打印设备,包括机架及安装于机架上的光源、反光镜、树脂槽支撑板、树脂槽和Z轴运动模块,光源和反光镜位于机架的底部,树脂槽固定于树脂槽支撑板上对应反光镜的正上方,树脂槽的底部有透明膜,Z轴运动模块上连接有运动成型平台,其特征在于:所述透明膜为空气可透过的微孔透明膜,所述运动成型平台下表面的中心点与树脂槽的中心点重合。
【技术特征摘要】
1.一种快速光固化DLP3D打印设备,包括机架及安装于机架上的光源、反光镜、树脂槽支撑板、树脂槽和Z轴运动模块,光源和反光镜位于机架的底部,树脂槽固定于树脂槽支撑板上对应反光镜的正上方,树脂槽的底部有透明膜,Z轴运动模块上连接有运动成型平台,其特征在于:所述透明膜为空气可透过的微孔透明膜,所述运动成型平台下表面的中心点与树脂槽的中心点重合。2.如权利要求1所述的快速光固化DLP3D打印设备,其特征在于:所述透明膜为微孔玻璃或者微孔塑料膜。3.如权利要求2所述的快速光固化DLP3D打印设备,其特征在于:所述树脂槽包括上框、下框和所述透明膜,透明膜位于上框和下框之间,上框和下框之间可拆卸紧固时使透明膜安装定位。4.如权利要求1所述的快速光固化DLP3D打印设备,其特征在于:所述Z轴运动模块为步进电机控制的丝杆滑台,连接于所述机架上端树...
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