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Regulacija temperature sušenja tesnilne mase pri lakiranju avtomobilskih karoserij
JUG, MARTIN (Author), Nedeljković, David (Mentor) More about this mentor... This link opens in a new window

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Abstract
Diplomsko delo opisuje razvoj in implementacijo predelave obstoječega sistema za sušenje tesnilnega spoja na zvarnem spoju med streho in stranico karoserije avtomobilov. Gradnike sistema sestavljajo senzorji, aktuatorji ter močnostna in krmilna oprema. Krmiljenje infrardečih grelcev za sušenje tesnilne mase, poteka prek modulacije, ki na podlagi vrednosti PI regulatorja določa čas delovanja grelcev. Krmilni program teče na programirljivem logičnem krmilniku proizvajalca Schneider Electric, ki v povezavi z osebnim računalnikom omogoča nadzor in vizualizacijo nadzornega sistema. Poleg računalnika je v bližini vgrajen še industrijski dotični zaslon, ki prikazuje temperaturni trend sušenja tesnilne mase. Program za zaščito karoserij, naprav ter okolice upošteva signale senzorjev in dajalnikov, hkrati pa omogoča dinamično spreminjanje receptov gretja karoserije. Regulacija temperature je nastavljena tako, da je odstopanje med dejansko in želeno temperaturo v večini primerov manjše od 1°C.

Language:Slovenian
Keywords:programirljivi logični krmilnik, PI regulator, regulacija temperature, nadzorni sistem
Work type:Bachelor thesis/paper (mb11)
Organization:FE - Faculty of Electrical Engineering
Year:2014
Views:847
Downloads:366
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Secondary language

Language:English
Title:Control of sealant drying temperature in coating of car bodies
Abstract:
The thesis describes the process through which the previous system for drying sealing joints in the welding joints between the roof and the body side moulding of cars has been developed and implemented. Important building blocks for the system are sensors, actuators, power and control equipment. Infrared heaters used for drying the sealant are controlled by modulation technique. The modulation is influenced by the output value of PI controller which determines the time of operating the heaters. Aplication control programme is loaded on a programmable logic controller (PLC). When the PLC is connected to the PC, it allows supervisory control and visualisation. The control programme uses signals of sensors and encoders for protection the body side of a car and devices. Furthermore it allows dynamic changing of heating recipes for the body side. Temperature control is set so that the error between the actual and desired temperature in most cases is less than 1°C.

Keywords:Programmable logic controller, PI controller, temperature control, control system

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