金属罐高速在线漏光检测与控制系统的实现

Implementation of the High-speed Online Light Leakage Detection and Control for Metal Can Production

针对冲压式金属罐生产过程中造成的微小裂纹、沙眼等罐体缺陷,采用光电检测技术进行高速在线检测。考虑缺陷罐体漏光极其微弱的特点,设计了基于高灵敏度光电倍增管的光强检测和光照电路,以及高实时工位、罐体、坏罐剔除、防漏等测控软硬件模块,实现了罐体的高速连续在线检测。测试结果验证了该系统正常工作达到1 800罐/min工况下的有效性和良好性能。

For the micro cracks, trachoma and other defects caused in the stamping productive process of metal cans, high speed online detection is conducted by using photoelectric detection technology. Due to the light leakage of the defected can is extremely weak, the light intensity detection and illumination circuit based on high sensitive photomuhiplier tubes; and the hardware and software modules for real time can body, working position,bad can excluded,leak -proof, etc. ,are designed for implementing high speed continuous online detection for can body. The test results verify that under normal operating condition, the system can be working at up to 1 800 pcs/min, with good effectiveness and performance.