3results about How to "Realize quality control" patented technology

The patent relates to the technical field of tobacco, and particularly relates to a conveying system for a paper-process sheet drying oven and the paper-process sheet drying oven. The conveying system comprises a conveying device, a first deviation rectifying device and a second deviation rectifying device. The first deviation rectifying device and the second deviation rectifying device are both used to provide displacement in a deviation rectifying direction to the conveying belt, the deviation rectifying direction is perpendicular to the length direction of the conveying belt, the distance between the first deviation rectifying device and the end driving roller is not greater than 10%, 20% or 25% of the length direction size of the transmission assembly, and the second deviation rectifying device is arranged substantially symmetrically to the middle line of the transmission assembly in the length direction of the first deviation rectifying device. The patent can better solve the deviation problem of the conveying belt, save labor cost, improve production efficiency and reduce the labor intensity of the operator. The deviation rectifying frequency of the first deviation rectifying device and the second deviation rectifying device is lower during the working process, and the first deviation rectifying device and the second deviation rectifying device are more suitable for deviation rectifying of long-distance belt conveying systems and have a longer service life.

The application discloses a plastic spraying link quality detection feedback method and system, and relates to the field of plastic spraying quality control systems.The scheme points comprise a nozzle management module, the nozzle management module allocates a unique electronic code to each nozzle, monitors the parameters of each nozzle in real time, and calibrates the position of the nozzle regularly; a scheme library module, the scheme library module stores a plurality of plastic spraying master schemes, each master scheme corresponds to a specific type of product, the master scheme contains a plurality of sub-schemes of the product under different working conditions, and the scheme library module establishes an association rule between the master scheme and the sub-scheme; the application fuses the working environment changes through a multi-source sensor, and combines a machine learning model to predict the best process parameter combination; the electronic code is used to realize independent control of a single nozzle, and a position calibration algorithm is used to ensure uniform coverage of complex curved surface workpieces; a three-dimensional evaluation network covering the overall appearance, local microstructure and performance indicators is used to realize quality control from the macroscopic to the microscopic.

The invention discloses a lithium battery defect signal extraction method based on improved WOA-VMD, and belongs to the technical field of lithium battery nondestructive testing and signal processing. According to the method, aiming at the problems of low signal-to-noise ratio after ultrasonic signal penetration and difficulty in defect feature extraction caused by an internal multi-layer structure during air coupling ultrasonic detection of a lithium battery, a cosine convergence factor and a nonlinear inertia weight strategy are introduced to improve a traditional whale optimization algorithm; key parameters of variational mode decomposition are optimized in a self-adaptive mode; variational mode decomposition is carried out on the noisy ultrasonic signal by using the optimized parameters, and dominant intrinsic mode function components are screened out according to a correlation coefficient threshold value; and carrying out wavelet threshold denoising on the screened components, and finally reconstructing to obtain a defect characteristic signal with a high signal-to-noise ratio. The method has high adaptability and robustness, is suitable for defect detection of lithium batteries of different specifications, and provides an effective technical means for safety and reliability evaluation of the lithium batteries.