Repotenciación de una máquina envasadora y dosificadora rotativa de yogurt de la Fábrica de Lácteos “PRASOL” ubicada en la parroquia San Luis- Riobamba

Abstract

This technical Project had as an objective, to repower a rotary yogurt filling and dosing machine at the PRASOL dairy factory. For the development of the project, the existing components of the machine were codified in three: pneumatic, electrical and mechanical systems; Subsequently, the technical state of its components was evaluated, categorizing them according to their condition: reusable, replacement and to be discarded. Once the technical status was established, corrective or preventive maintenance actions were established to restore the operating conditions of the system. The electrical system of the machine was outdated so new operating conditions required by the company were established. The automatic control system was redesigned to allow the operator to have greater control of the equipment, which a Siemens programmable relay and an expansion module were used, which were programmed using the function language in Logo Soft Comfort software. A Kinco screen was implemented, it was programmed in its Dtools software. Finally, the electrical plans and the sizing of all its components were drawn up. In the pneumatic system, the electromagnetic relays were replaced by solid state relays since the solenoid valves are in constant switching and these will provide greater reliability to the system, the pneumatic circuit was elaborated in the FluidSim software. After the repowering of the packaging machine's systems, it was started up, carrying out tests, 100 ml plastic bottles were packed with yogurt, thus complying with the requirements of the RTE-INEN-284 standard. It was possible to reduce man-product contact, thus improving the safety and quality of food. To guarantee good operation and increase the useful life of the equipment, it is recommended to review the operation and maintenance manual of the packaging machine.