2results about How to "Fast printing" patented technology

This invention belongs to the field of electromagnetic shielding, and relates to an electromagnetic shielding material with a macroscopic conical hole structure, its preparation method, and its application. The preparation method includes: S1. Adding graphene nanosheets and polylactic acid particles to dichloromethane to obtain a graphene composite dispersion; S2. Drying the graphene composite dispersion at room temperature in a fume hood to obtain a graphene / polylactic acid composite material; S3. Chopping the obtained graphene / polylactic acid composite material and feeding it into a benchtop extruder, extruding composite filaments for 3D printing via melt spinning; S4. Creating a 3D printing model on a computer, feeding the composite filaments into a 3D printer, and processing the material with a macroscopic conical hole array structure using computer-controlled 3D printing. This electromagnetic shielding material exhibits excellent electromagnetic shielding performance, has a simple processing technology, low equipment parameter requirements, and is suitable for industrial production.

The application discloses a multi-station positioning device and a positioning method, which comprises a first conveying device and a second conveying device arranged in front of and behind each other and conveying glass in the same direction, a feeding area for placing glass is arranged on the first conveying device, a positioning swing piece mechanism for conveying glass along the width direction of the first conveying device is further arranged on the first conveying device, a positioning printing mechanism for printing glass is arranged on the second conveying device, and the first conveying device, the second conveying device, the positioning swing piece mechanism and the positioning printing mechanism are electrically connected with a controller. The application can simultaneously print multiple glasses in multiple stations, and can accurately position each glass, so that the printing effect is good.