A visual detection method and system for filling defects of dry battery pulp paper

Abstract

The invention discloses a method and system for visual detection of filling defects of dry battery pulp paper. The detection method includes the following steps: initializing a detection camera; after capturing a synchronous signal, turning on a visual light source, and the detection camera collects a frame of image, which is marked as P; Perform grayscale linear stretching and Gaussian blur on the image P; use the canny edge detection algorithm to extract the edge of the preprocessed image P; use the Hough algorithm to locate the position of the mouth of the zinc cylinder, and set the ROI image to filter irrelevant areas; Use the binarization threshold to segment the pulp paper area, and then use the region growing algorithm to obtain the pulp paper area A; compare the area A with the standard value, and when the pulp paper has defects, remove the dry battery and return to the next step Detect the next dry cell. The system mainly includes an industrial smart camera and rejecting device. The above detection method and system can not only detect the pulp layer paper in real time, but also have the advantages of high detection efficiency, low cost and the like.

Description

technical field [0001] The invention relates to dry battery preparation technology, in particular to a visual inspection method and system for filling defects of dry battery slurry layer paper. Background technique [0002] In the process of dry battery production, the pulp layer paper is cut into a specific length by mechanical cutting, the cut pulp layer paper is wound up by the machine, and is sucked on the filling machine by vacuum, and then the cam of the filling machine The structure packs pulped paper into the interior of the zinc cylinder to fill the electrolyte. [0003] In order to meet the performance requirements of charging and discharging of dry batteries, the pulp paper must match the zinc cylinder. However, under the influence of factors such as insufficient precision of mechanical cutting, instability of vacuum adsorption force and stability of filling machine, it is inevitable that the pulp paper will have the following defects during the filling process: ...

AI Technical Summary

Problems solved by technology

However, under the influence of factors such as insufficient precision of mechanical cutting, instability of vacuum adsorption force and stability of filling machine, it is inevitable that the pulp paper will have the following defects during the filling process: missing pulp paper, too high pulp paper , Pulp layer paper is too low, pulp layer paper dislocation, pulp layer paper folding angle, etc.

[0005] However, the disadvantages of the above-mentioned vision system in the process of use are: its detection method needs to use multiple cameras to detect the battery at multiple angles at the same time, which will cause the entire system to become larger in size, low in system integration, and complex in structure. The production cost is high; or the dry battery is driven to rotate for detection, which will reduce the efficiency of detection, thereby reducing production efficiency

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