A kind of air tightness detection system and application of local special-shaped surface of product

Abstract

A product local profiled surface air impermeability detection system includes a connection chamber, a vacuum system, an electronic control system, a control decision operation system and a body structure. The connection chamber is attached to a detected object. A closed chamber is made vacuum in operation. The vacuum system creates a vacuum environment and measures the vacuum degree of the vacuumenvironment, and the change trend and the change speed of the vacuum degree. The electronic control system controls a vacuum pump set and an electronically controlled vacuum valve in the vacuum systemto achieve an air impermeability detection process. The control decision operation system obtains a vacuum gauge signal in the vacuum system and a relation between signal and time for data processing, determines the air impermeability of the detected position of a product and the leakage condition of the sealed position of the product, and analyzes the cause of the leakage, and a program of the control decision operation system is embedded in the electronic control system. The body structure constitutes the physical structure of the air impermeability detection system. The air impermeabilitydetection system is suitable for detecting the practical conditions of air impermeability of various local surfaces of a firm cavity product with a certain volume.

Description

technical field [0001] The invention belongs to the technical field of air tightness detection, and in particular relates to an air tightness detection system for a special-shaped partial surface of a product, which is used for intelligent inspection of the air tightness of a local surface of a finished product. Background technique [0002] During the storage of finished products, the sealing performance of the outer packaging of the product directly affects the reliability of the long-term storage of the product. In order to prevent the failure of the product due to air leakage from the outer packaging, product integrity (air tightness) testing is widely used in production. However, due to the limitation of technical conditions, the current integrity testing of fully-sealed products mostly uses fully-enclosed testing equipment to test the air-tightness of products, or only conducts the air-tightness testing of semi-finished product packaging, which is still unable to targe...

AI Technical Summary

Problems solved by technology

At present, there is no comprehensive intelligent system at home and abroad that fully considers the integration of detection methods, detection devices, and detection decision-making to complete the actual air tightness detection project of finished products with special-shaped surfaces.

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