The Design Of Control System For Machine Making Bags By Hot-sealing And Cutting

Along with the improvement of the people's livelihood, the demand for the plastic Swathe is increasing, the flexible packing industry has been developed to a great extent. Bag-making is the last working procedure of the flexible packing production line, including position control, length control, temperature control, traction control and cutting process step. The technological level of bag-making process has direct effect on ultimate product quality. Machine making bags is the primary equipment during bag-making working procedure. The paper takes XIAMEN LingChuang Company's project as background mainly expatiates on the control system of machine making the plastic bag by hot-sealing and cutting (MBHC).At first, the paper makes an analysis of the working principle of MBHC, and its request of control system, embarks from the demand of current market, and take pursuing the maximized profits from combination of production and research as purpose, have worked out the overall plan that mark of module designs, and establish its master controller module being the main research emphases of the paper.Later, the design of hardware is given. Master controller selects the high-performance monolithic machine - P89V51RD2FA as controls core, and expanding E2PROM chip to realizes parameter memory; Adopts FUJI frequency changer of FVR1.5E11S-7JE to come to drive the master electric motor; Servo electric motor system selects YASKAWA SGMGH series alternating-current servo-system; Selects sensing probe of color index LX-101 of Sunx to fixing position of bag material, and realizes position mode; Adopts proximity sensors and metallic cam wheel to realizes the position detecting of ardent cutting. And has pay attention to the anti-interference problem especially in entire process.Then, the design of software of master controller is given. Including adopts time-sharing and fixed frequency sending algorithm to realizes high speed pulse instruction sending; Adopts three-section-control algorithmic to effective diminished the amounts of sliding in dragging process, and so forth.At last, the paper presents the system realization frame of deviation rectification controller and tension controller. The master controller and the deviation rectification controller have already begun to get first step application in the scene. All the results are indicated that system has reached function target that anticipated,the reliability is strong, the comparison of function and price is excellent,and having very good extension value.