Visual inspection method for coated paper

Abstract

The invention discloses a visual inspection method for coated paper. The visual inspection method comprises the following steps that a standard image is registered; a camera is used for carrying out primary shooting imaging on the inner wall of a zinc barrel of a product to be inspected within the view field of the camera, a visual controller controls a first camera to carry out primary shooting imaging on the bottom of the zinc barrel of the product to be inspected, and the image is marked as P1; the similarity of the image of the product to be inspected and the standard image is calculated; if the similarity of the image of the product to be inspected and the standard image is lower than a set value, it is judged that the product to be inspected is a defective product; if the similarity is larger than the set value, position displacement correction is carried out on the obtained image of the product to be inspected through the visual controller, so that the center of the image of the product to be inspected is overlapped with the center of the standard image; area gravity center detection is carried out, and the defects that no coated paper exists, the coated paper is too low or too high, and no bowl bottom paper exists are detected. By means of the method, the problems that current manual visual inspection is low in efficiency, poor in inspection effect and different in visual inspection standard, and consequently product stability is poor can be effectively solved.

Description

technical field [0001] The invention relates to the technical field related to battery preparation, in particular to a visual inspection method for pulp layer paper. Background technique [0002] As a necessity of life, batteries are widely used in people's daily life. The quality of battery performance directly affects people's quality of life and battery brand image. Pulp layer paper is the diaphragm material in zinc chloride dry batteries. It is formed by coating zinc chloride solution slurry on the base paper and drying it into a dry film. After being assembled into the battery zinc cylinder, it absorbs the water in the positive electrode carbon pack gel, which is ionically conductive. In the battery production process, the pulp layer paper must be suitable for the battery to meet the charging and discharging performance of the battery. [0003] In the battery production process, it is necessary to detect the insertion of the pulp paper in the zinc cylinder of the bat...

AI Technical Summary

Problems solved by technology

At present, manual visual inspection is widely used for inspection, which has problems such as low efficiency, poor detection effect, and poor product stability caused by different visual inspection standards.

At present, there is no direct and effective visual inspection method for pulp paper in the market, which can quickly detect the high, low and misalignment of pulp paper.

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