Manufacturing Method And Implementation Of Customized Packaging Stuffing Based On Line Structured Light And 3D Printing

With the rapid development of the express industry,the protection of goods in the process of transportation is particularly important.At the present stage,the means for the protection of goods is to place some anti-seismic materials,such as broken paper strips,foam,bubble bags and sponges.There are also some packing materials that are designed according to the shape of objects.The purpose is to protect the articles from damage.In the background of customized packing,the article aims at valuable and complex objects,such as porcelain and fossils.The object is scanned by the line structure optical vision measurement technology,and the 3D model of the object is obtained.Then the packing material is designed by the forward software,such as SolidWorks,such as the three-dimensional model of the object.The packing filling of the object is customized.Finally,the packing material is printed by the 3D printing technology.The combination of multi cameras and multiple lasers can improve the measurement speed and reduce the data processing time.Using 3D printing technology to make packing and filling,shorten the filling period effectively.With the implementation of the multi material 3D printing technology,flexible materials can be printed on the inner layer of the filler,and hard material is printed on the outer layer to make the best protective packaging filler.(1)Platform design.On the basis of line structured light scanning,an experimental platform for multi-line structured light integrated scanning is designed and built,including the measurement system composed of industrial cameras,lasers,stepping motors,and computers.(2)Calibration system.According to the pinhole model and distortion model of the camera,the principle and calibration method of camera calibration are elaborated.The calibration process of this system includes calibration of single camera,calibration of camera and laser plane,and calibration of position relation between camera and camera,which provides the basis for subsequent image processing.(3)Software system.The relative software modules are designed on the hardware platform of the measurement system,including image acquisition,system calibration,image processing,point cloud acquisition,packing fill design,and 3D printing.The process of image processing includes image filtering,smoothing and stripe center extraction.Through the calibrated data,the 3D coordinates of the surface point of the object and the point cloud data of each camera are spliced.The 3D point cloud data are reconstructed by the existing reverse software,and the packing material is customized by the forward software,and the 3D is printed at the end.(4)Experiment.According to the above calibration data and the software system,image acquisition is carried out on the camera by controlling the motion of the measuring platform.The experiment includes four industrial cameras and four lasers,which are installed in four corners respectively.The image can be collected to obtain four sets of images,and four groups of points can be obtained after the image processing.The cloud data is then divided into four groups of point cloud data according to the calibration data between cameras.Then point cloud processing is done,packing and filling are customized,and finally 3D printing is done to get object customized packaging stuffing.