Control method and system of bar packing machine

The invention relates to a control method and system of a bar packing machine. The method comprises the following steps that working signals of a roller way conveying system and a bundling system arereceived; a roller way conveying program is started, and the conveying position of a roller way is detected; if the roller way is conveyed to a bundling position, the roller way is controlled to stop;a pre-tightening forming program is started, and the number of bars is detected; and if the number of the bars reaches the set number, bundling operation is executed. The roller way conveying systemand the bundling system are merged into the same network, the bars are bundled up through mutual cooperation, the problems of safety interlocking, low production efficiency and the like caused by one-to-one control in a traditional control system are solved, intelligent scheduling and coordinated control of equipment are achieved, the reliability of the whole control system is improved, and production efficiency is effectiv