Implementación de un sistema electrónico para el control de una remalladora industrial utilizada en el proceso de maquilado textil.

Abstract

The aim of this research project was to implement an electronic system for the control of an industrial mending machine and thus replace the current traditional control system. In order to determine the necessary design requirements for the system, information was collated from prior research. For the implementation, end-of-stroke, infrared and optical sensors were used, in coordination with a human machine interface (HMI) that allows the operator to visualize and govern system functions commanded by a Raspberry Pi 3 model B development card in charge of controlling the logical part of the system and various ideally configured electronic devices. Mechanical energy is generated via a direct current (DC) motor continuously connected to the machine shaft by means of a flexible coupling. The logical design of the algorithm was programmed in QT and includes manual and automatic control of the machine, positioning of the needle and a historical record of the hours worked to carry out a predictive maintenance plan. From the implementation and execution, it was shown that the system saves 75.05% in energy, improves 11.34% in terms of production times and minimizes noise generation by 27.97% compared to the traditional technology system. It was found that by implementing the system, production times improved, which in turn saved electrical energy, reduced the exposure of the machine operator to hearing impairment and supported maintenance and proper machine functioning with the record of hours worked. In order to minimize losses and obtain the maximum use of resources, it is recommended that a procedure is added to the system which can perform automatic thread trimming and detecting threading line breaks.