Laser rapid detection method for wormhole flaws of bamboo chopstick blanks and special device thereof

Abstract

The invention discloses a laser rapid detection method for wormhole flaws of bamboo chopstick blanks and a special device thereof. The method comprises the following steps: (1) after the special device is started up, a bamboo chopstick blank is placed on a detection table; (2) red laser rays passes through a light-limiting groove and reaches the bamboo chopstick blank, rays passing through the bamboo chopstick blank are reflected to an image board by a plane mirror; then a camera takes an image and the image is transmitted to a controller for image analysis; (3) if the shadow brightness on the image board is uniform, the controller judges that no wormholes exist, a bamboo chopstick sorting device does not operate and the bamboo chopstick moves forwards to enter in next process; and if the shadow brightness on the image board has a sudden change, the controller judges that wormholes exist, the sorting device operates and the bamboo chopstick falls down automatically. The special device constructed according to the detection method comprises a horizontal laser tube, a light-limiting groove, a plane mirror, an image board, a camera, a bamboo chopstick sorting device, a controller and a detection table. The method and the device disclosed by the invention has the beneficial effects of simplicity in structure, low cost and high detection speed and are applicable to mechanized and automatic production.

Description

technical field [0001] The invention relates to a laser rapid detection method and a special device for bamboo chopsticks embryo moth hole defects, belonging to the field of agricultural information detection equipment. Background technique [0002] Moso bamboo is an important renewable agricultural and forestry resource in my country, and is widely used to make daily-use bamboo products such as bamboo chopsticks. Due to the high sugar and water content in bamboo, moso bamboo raw materials and processed bamboo products are often eaten by some pests (such as bamboo beetle, powder beetle, etc.). In the process of bamboo chopsticks processing, in order to ensure the quality of finished bamboo chopsticks, it is necessary to carry out defect detection on bamboo chopsticks embryos (unpainted bamboo chopsticks). At present, most bamboo chopsticks processing factories in my country use manual methods to detect visual defects of bamboo chopsticks embryos, which is not only slow in d...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the low efficiency of manual detection of existing bamboo chopsticks embryos and the problem of only detecting external boreholes, the present invention proposes a fast and accurate bamboo chopsticks detection method that can not only detect external boreholes, but also be applicable to hidden boreholes inside bamboo chopsticks. Laser rapid detection method and special device for chopsticks embryo hole defects

Images