Aiming at the problem of large degree of core wire offset from the axis of the filter rod in the production process of hard ruffled filter rods, this paper designs an on-line high-speed inspection method based on machine vision for the forming unit of cigarette filter rods, which uses ellipse fitting to identify the filter rods and core wires, and outputs the centre coordinates of the two and determines whether they are qualified or not. The detection speed of the system is fast, high precision, the estimated detection capacity is better than 4200 pcs/min, the detection rate of defective products with core wire offset centre of more than 0.5mm and missing core wire is 99%, which is able to achieve the detection requirements of detecting defective products with core wire filter rods to meet the production needs and guarantee the quality of the filter rods on-line.
The development of intelligent detection system makes the running state of cigarette equipment continuously known, which provides a basis for fault detection and maintenance of cigarette enterprises. In order to improve production and reduce fault consumption, it is urgent to be able to detect the fault of the smoke machine in time or even to detect the fault of the smoke machine in advance, and to give the corresponding reliable solution in time, as well as the fault type, fault equipment and other information, reduce the time for workers to retrieve the source of equipment failure and think about the solution, and greatly reduce the huge loss caused by the failure of the smoke machine. Therefore, a method of fault diagnosis and pre-maintenance of tobacco machine is proposed, which is based on fault tree support vector machine state evaluation method for pre-maintenance and normal operation and maintenance of tobacco machine. This method can detect the machine fault in time and prevent the possible machine fault. According to the results, the fault type, solution and other information can be fed back to realize the pre-maintenance and normal operation and maintenance of the cigarette machine, which has guiding significance and reference value for the production and maintenance of cigarettes.
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