Full-color shell layer 3D printer based on layer-by-layer light curing and color shell object

Abstract

The invention discloses a full-color shell layer 3D printer based on layer-by-layer light curing and a color shell object and belongs to the field of mechanical-photoelectric technology. Hardware andsoftware supporting a method include a motion mechanical system, a control system, an ink supply system, a projection/curing light system, a light curing material and layering software. Due to light curing conducted on the printed object in a layer-by-layer manner, and meanwhile the surface of the printed object is covered with color UV ink in a layer-by-layer manner or the color UV ink is sandwiched in the printed object, a color shell layer is formed; and the defect that resin materials used for constructing the printed object cannot be mutually diffused and mixed to form full colors, although the color UV ink can be easily diffused and mixed to form the full colors, when the superficial surface of the printed object obtains the true color shell layer, a perfect color three-dimensional printed product-color shell object can be shown.

Description

[0001] [Field] [0002] The invention belongs to the field of mechanical-optical technology. To be precise, MJP (Multi jet modeling pringting) and stereolithography SLA (Stereo lithography Appearance) are used to solidify layer by layer with the help of multi-nozzle jetting. The layer-by-layer construction method is used to wrap or expose the thin layer by means of SLA and 3DP. A color ink nozzle generates a color shell layer, thereby forming a full-color 3D printing method of a color interlayer and printing a color shell object. [Background technique] [0003] Overview of the overall historical development of 3D printing: [0004] In 1986, Dr. Charles W Hull of the United States proposed the concept of using laser light to irradiate the surface of photosensitive resin and curing to make three-dimensional objects in one of his papers. Later, Charles WHull applied for related patents. harles Hull develops the first commercial 3D printing machine. The rudiment of SLA appeare...

AI Technical Summary

Problems solved by technology

[0057] Solve the problem that the 3DP / SLA technology without powder coating cannot generate true color printed objects, and overcome the resin materials used to build printed objects that cannot diffuse and mix with each other to form full colors. Although color UV inks are easy to diffuse and mix full colors, if used as a construction As far as the material of the printed object is concerned, on the one hand, its physical and chemical properties are poor. On the other hand, even if the resin material that constructs the printed object is sprayed out in a small amount to meet the purpose of visually uniform color mixing of various colors, the speed of stacking and building the slices of the printed object will be greatly improved. Reduced, the time to print the object will also be unbearable, and it also overcomes the limitation of the printing speed due to the high resolution of the print head that sprays the color UV ink; moreover, it is necessary to overcome the anti-angle surface of the formed object (according to the rule of going up and down south) , the southern hemisphere belongs to the opposite angle surface) cannot be colored

[0058] Solve the defect that the current SLA technology cannot generate color printed objects

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