Flow control sealing mechanism and yarn hairiness detection method based on same

Abstract

The invention discloses a flow control sealing mechanism and a yarn hairiness detection method based on the same. A circular spray pipe and a circular suction pipe right below the same are arranged ina shade of the flow control sealing mechanism; the circular spray pipe is provided with a plurality of nozzles which open downward; the circular suction pipe is provided with a plurality of nozzles which open upward. The flow control sealing mechanism and the yarn hairiness detection method based on the same have the advantages that the flow control sealing mechanism ensures cleanliness of an instrument test zone during testing, lodging of hairs is never caused due to air resistance, tips of hairs and yarn shanks are freely stretched, and therefore, image quality is improved and accuracy of test results is guaranteed; a central control system ensures action phase difference precision for a power supply source and an image acquirer; detection state is truly provided for moving yarns duringoperating, and reliable dynamic instrument state detection can be performed after static calibration; a light source has a high duty ratio, so that the heat problem is avoided.

Description

technical field [0001] The invention relates to an airflow control and air curtain sealing mechanism for yarn hairiness testing, and also relates to a yarn hairiness testing method based on the mechanism. It belongs to the field of textile material inspection. technical background [0002] Yarn hairiness detection is an important quality control method in the textile industry. The traditional and more mature method is the photoelectric method. The basic method is to use parallel light to irradiate from one side of the yarn to the photocell array arranged on the other side. parameters to obtain projected geometric information about hairiness. Due to the inherent problems of components, the detection speed of this method is greatly limited, and the comprehensive geometric information of yarn hairiness projection cannot be fully obtained. [0003] In recent years, image-based hairiness detection technology based on CCD or CMOS sensor has appeared, such as Uster hairiness met...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide an airflow control sealing mechanism and a yarn hairiness detection method based on the mechanism, first, to solve the problem of hairiness lodging caused by the relative movement of air and hairiness in high-speed operation; second, to realize The air curtain seals the light path of the optical system, and absorbs flying flowers, free hairiness and dust to make the image acquisition area cleaner; third, solve the technical problems of the existing technology that have high requirements on the light source, poor synchronization and stability; fourth , Solve the technical problem of poor measurement accuracy of hairiness quantity and length

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