Design and analysis of a placing (inserting) mechanism for polypropylene (PP) and polyethylene (PE) sacks

PE and PP sacks are used to store various items in industry. PE and PP sacks are separately produced and inserted together to form a strong sack for storing artificial fertilizers. The manual procedure for inserting PE and PP sacks is studied. There is no automatic system for the sack inserting procedure at the moment. Many operators can perform the inserting procedure one by one independently on different storing platforms.Two inserting mechanism alternatives are proposed in this study. Initially the requirements during the insertion are revealed. Two alternative systems are designed and one of them is chosen to be used. Control of inserting mechanism, actuation and synchronization characteristics are studied by looking at trajectories available. Kinematics? analyses of intermittent motion mechanisms are performed. The proposed mechanism is presented with its construction details and the mathematics are available. Automization on the inserting mechanism is performed in the proposed design with necessary synchronization. When the studies on the design of the inserting mechanism are completed, this system will be faster and the number of sacks inserted will be increased together with making the system more intelligent.Key Words: Polypropylene (PP) sack, Polyethylene (PE) sack, control of placing (inserting) mechanism, conceptual design, kinematics of inserting mechanisms.