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This paper details the design the automation processes for the control of temperature and length variables due to the need to control some of the main physical variables that are part of the production process |, thereby obtaining the physical signals and interpreting them for processing and assignment of a measurable baseline assessment, which allows controlling the values to determine the behavior of the processes. These automation processes were developed using computer-assisted control, LabVIEW graphic programming software and an NI 6000 USB data acquisition card. The processes to be implemented are based on: the control and monitoring of temperature in the area of pabileras, control and monitoring of proportion in the mixing of matches, as well as the control of size and temperature in the production of the wick. These automation processes for the control of quality variables allow the manipulation and monitoring of physical variables such as temperature and length, since they greatly influence the production of matches. Allowing the user to adjust the desired values in the production area and keep them as stable with reference to quality standards. The implementation of an automatic temperature control system for the paraffin process through LabVIEW is shown, an analysis will be carried out in the area of pábilo and paraffin production of the company Cerillera la Central S.A. de C.V. in which the temperature of 174 ° F to 188.6° F must be controlled, by means of solenoid valves activated by relays at 127 VAC, a resistive sensor (PT-100) coupled to a Wheatstone bridge will be used which will deliver analog data; which will be processed by the NI USB-6000 data acquisition card, a PC and NI-LabVIEW software in order to turn on or off the solenoid valves that activate the steam supply for paraffin heating. |
