Mold number coding online imaging apparatus, mold number coding online imaging system and mold number coding online detection method

Abstract

The invention relates to a mold number coding online imaging apparatus, a mold number coding online imaging system and a mold number coding online detection method. The mold number coding online imaging apparatus is used for detecting the mold number code of a bottle body, and comprises a light source and a camera, wherein the light source is arranged below the bottom of the to-be-detected bottlebody, and irradiates toward the bottom of the to-be-detected bottle body, and the camera is arranged above the mouth of the to-be-detected bottle body, and takes photograph toward the mouth of the to-be-detected bottle body. The apparatus of the present invention has advantages of good imaging effect, good universality and good compatibility.

Description

technical field [0001] The invention relates to the technical field of industrial automatic visual detection, in particular to an online imaging device, system and detection method for mold number coding. Background technique [0002] At present, mass-produced beer glass containers are generally processed by mold molding. For the processed finished container, it is necessary to rely on the bump code on the bottom of the bottle to record the mold number information produced. Using this coding method, timely review and traceability of bottle-making defects generated by specific molds during the bottle-making process can be carried out, effectively improving the yield and product quality. Therefore, how to identify the number of unqualified molds online is of great significance. [0003] The mold number code of the glass bottle is generally within the range of 20mm above the bottom of the bottle. The code form is a one-to-one correspondence with the mold number. of the two bu...

AI Technical Summary

Problems solved by technology

Another recognition system is provided in the patent application 201210148078, but this method has high requirements for external hardware such as platform stability and uniform rotation speed, and also has high requirements for multiple image stitching, so the actual operability is not strong

In the utility model patent "a mold coding imaging device" (application number 201420153535.8), it is proposed that a light source is irradiated from the top of the bottle mouth, and a CCD camera and a combination of short-focus and large depth-of-field lens groups are used to observe from the bottom. Obtain an image close to the side of the bottom of the glass bottle for subsequent identification, but such a system has high requirements for the coaxiality of the observation target, the lens group and the CCD lens, and a slight offset will cause asymmetric distortion of the image, so it is not suitable The online identification of the bottle body is in motion, and this system cannot capture the situation that the mold point is at a higher position from the bottom of the bottle. In addition, because the diameter of the lens group needs to be more than twice the diameter of the target to be detected, it cannot handle the bottle body with a larger diameter. In large cases, for glass bottle production lines with frequent product changes, automatic adaptive switching cannot be conveniently performed, and the actual production flexibility is poor.

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