Development of a scada control system for a weighing and bagging machine

Aykaç, Emel Sinem
In this thesis study, a prototype is designed in order to improve the weighing accuracy of the weighing and packaging machine that used in sugar factories. The unavoidable factory conditions cause weighing and packaging machine to do weighing errors. In order to correct these errors, the prototype produced in this study was designed as a quality control unit which will take the excess sugar and fill the deficient sugar in the sacks. Because of being small and having an easy installation, the application of the prototype was done considering 1-kilogram bags rather than available 50-kilogram ones. So as to correct the faulty weighing, sugar extraction and filling processes are provided from a bunker which is designed on the basis of data obtained by statistical analysis. For suction, vacuum is used and filling is realized by a ball valve. Upwards and downwards movement of the bunker is carried out with a pneumatic cylinder. Weighing information is received via a load cell and an indicator. Control of all these devices is provided by PLC hardware and SCADA interface.


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In this thesis study, a two-fingered gripper and a four-fingered multipurpose gripper are developed and manufactured. In addition to development of robotic hands, computer control hardware and software are also developed for computer control of both hands. The two-fingered gripper is designed for a specially defined pick and place operation. Its task is to pick a cylindrical work piece and place it in the appropriate position in a flexible manufacturing cell. Pneumatic actuator is used for power generation ...
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Plane strain analytical solutions to estimate purely elastic, partially plastic and fully plastic deformation behavior of rotating functionally graded (FGM) hollow shafts are presented. The modulus of elasticity of the shaft material is assumed to vary nonlinearly in the radial direction. Tresca's yield criterion and its associated flow rule are used to formulate three different plastic regions for an ideal plastic material. By considerina different material compositions as well as a wide range of bore radi...
Citation Formats
E. S. Aykaç, “Development of a scada control system for a weighing and bagging machine,” M.S. - Master of Science, Middle East Technical University, 2010.