Automatic Detection Method of Cellular Carrier Defect

Abstract

The invention relates to the technical field of detection of defects of honeycomb carriers, in particular to an automatic detection method for a defect of a honeycomb carrier. The automatic detection method comprises the following steps: a to-be-detected honeycomb carrier is conveyed to a detection area by a belt conveying device with controllable conveying speed; a light source is arranged in the detection area, a contact image sensor and a high-definition camera acquire images of two end surfaces on two sides of hole channels of the to-be-detected honeycomb respectively under projection of the light source, the contact image sensor acquires the images in a manner of line-by-line scanning and one-line acquisition each time, the high-definition camera acquires the images of the to-be-detected honeycomb carrier when the to-be-detected honeycomb carrier reaches a focus position, and image data acquired by the contact image sensor and the high-definition camera is sent to a host computer; the host computer processes and analyzes the received images, and a detection result containing percentage of plugged holes, a curving rate of the hole channels, the number of the hole channels, surface cracks, a hole wall breakage result and the like is obtained. The detection method is simple, applicable to a large range of product dimensions and high in detection precision.

Description

technical field [0001] The invention relates to the technical field of cellular carrier detection, in particular to an automatic detection method for cellular carrier defects. Background technique [0002] Honeycomb carrier was first used in the field of small automobile exhaust gas purification technology, as a catalyst carrier in the purification process, and has been widely used in chemical industry, electric power, metallurgy, petroleum, electronic appliances, machinery and other technical fields. Existing honeycomb carrier production enterprises are basically still in the primitive stage of quality control in the production process of honeycomb carriers. Most companies use manual inspection, that is, to observe and judge the channels with the naked eye after aligning the product with strong light, and some Enterprises will use a more advanced method for testing, that is, first put the product in a light-transmitting table and project it on the frosted glass, and then ju...

AI Technical Summary

Problems solved by technology

This device solves the problem that the hole density and mesh number cannot be accurately calculated, but the device still requires manual participation in the detection process, and manual loading and unloading increases the complexity and instability of the device operation; due to the use of the clip device, the size of the carrier is also limited. It is limited to 50-180mm, and it is impossible to detect large and medium-sized carriers, and the parameters of the device need to be adjusted before the detection of carriers with different diameters, which is inconvenient; When there are unqualified products, it is necessary to manually sort the defective products, and the automation level of the whole device is not high

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