Empty bottle mouth defect inspection method and device

Abstract

The invention relates to an examining method examining the flaw of empty bottle nozzle and the device thereof, which is in particular suitable for the imperial crown beer bottle. The invention is characterized in that the method comprises the following steps: the bottle nozzle is given a photograph along the axis shaft line direction of the empty bottle to be examined to grasp the image of the bottle nozzle, the gradation abrupt change point in the image straight line territory is scanned, the decision of the weighting of coordinate array is judged and calculated, the ring fitting of the least square method is taken on the point obtained in the above steps, and the returned peripheral core coordinate and semi diameter is obtained. The circle parameter and radius parameter of the localization target area center is determined, and the target area is locked and given image preprocessing; and then whether the judgment requirement is met or not can be determined. The determining method provided by the invention can be easily utilized in inspecting equipment. And the high speed and high recognition rate automation examination to the empty bottle nozzle is thus realized. The invention has the advantages that the structure is simple, and the bottle with flaw can be correctly and automatically and efficiently rejected.

Description

technical field [0001] The invention relates to a method and device for detecting defects in the mouth of an empty bottle, and is especially suitable for crown beer bottles. Background technique [0002] At present, beer and beverage production enterprises pay more and more attention to the quality of products. However, the quality, appearance and cleanliness of the bottles of beer and beverage production lines are far from reaching the desired goals, especially in the current beer industry for beer bottles. Recycled bottles that are repeatedly washed and reused are of various shapes and varieties. Therefore, after washing in the bottle washing machine and before filling, it is necessary to detect and sort out unqualified bottles, and the inspection items usually include whether the bottle mouth is defective and Crack this one. [0003] The traditional empty bottle inspection method in the production line is done manually. When the bottle passes through the light inspection...

AI Technical Summary

Problems solved by technology

This kind of artificial detection standard is fuzzy, affected by human factors to a considerable extent, cannot maintain a constant standard, and the detection accuracy is low and the speed is slow

With the development of modern high-speed filling lines, the disadvantages of the human eye in the detection process are more prominent, such as: due to long-term repetitive work, the eyes are prone to fatigue and errors will occur after long-term work, even if these gaps are avoided, a It is impossible for very experienced inspection staff to surpass a visual inspection equipment with ordinary performance

[0004] For the empty bottle inspection machines currently used in high-speed beer and beverage production lines, all imported testing equipment are used. It is difficult for small beer and beverage manufacturers to pay attention

Images