Automatización del proceso de dosificación, ensacado y control de peso en lazo cerrado para la máquina mezcladora de balanceado de la Estación Experimental Tunshi Espoch.

Abstract

The objective was to optimize production time and the dosing, bagging, and weight control process in a feedback system for the animal processed food mixing machine in the Experimental Station Tunshi in the ESPOCH, for which a feedback control was considered for the weight variable, adding the forward control technique since the process presented a measurable disturbance. The bagging process starts with the weight selection via Human Machine Interface (HMI), once the starting and security conditions are met, the process starts with the bagging step by a pneumatic press, the dosage is composed by two activatable gates of different size to minimize bagging error, in the weighting two loading areas type S were used which send the signal to the programmable logic controller (PLC), once the ideal weight was reached, the sack is sealed by an electromechanical system activated by the portable handheld sewing machine. The combination of the design and implementation of each system is part of a robust process which adapts to the production plant needs, it was determined that with the implement automation in the animal processed food mixing machine, the process was optimized and production time reduced to 59.92% and the resources were optimized 100%, the waste of the manual process in the animal processed food sack weight is 1.4%, while in the automation process the waste is 0%, this proves the automation process effectiveness in 149,48%. It is recommended that the machine operator and the staff, who handle the machine, read the manual and documents related to the machine technical data, before its first use or maintenance in order to extend the useful life of its elements and avoid improper handling.