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Controller of hot runner for injection molds
Chrenka, Eduard ; Fiedler, Petr (referee) ; Štohl, Radek (advisor)
The thesis focuses on implementation of a hot runner controller for injection molds for plastic materials with a maximum number of 56 regulated zones. The first part of the thesis deals with already existing and used solutions of the given subject. The following part of the thesis describes the principles of temperature measurement by means of thermoelectric sensors, including their linearization as well as communication protocols MODBUS, EUROMAP 17. The identification of a regulated system ( heating zone) has been carried out before the hardware design. The development process is divided into some parts : system conception, hardware design, software development. The controller consists of measuring modules designed to collect data and handle power controllers for management of performance of heating elements. The necessary calculation power is integrated into the controllling computer. All parts of a hot runner controller are implemented taking into account the costs.
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Data acquisition by electronic scales for packaged articles
Chrenka, Eduard ; Šír, Michal (referee) ; Štohl, Radek (advisor)
The thesis deals with the issue of weighing of prepackaged goods and control of packing process . The thesis describes the method of communication with weighing-machine and including this method to the communication network with the communication terminals. The thesis describes the selection of the communication bus and defines requirements for the function of the communication terminal and utility program. The study also describes the hardware and firmware of the communication terminal. In the conclusion, the work describs the utility program including data model.
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Data acquisition by electronic scales for packaged articles
Chrenka, Eduard ; Šír, Michal (referee) ; Štohl, Radek (advisor)
The thesis deals with the issue of weighing of prepackaged goods and control of packing process . The thesis describes the method of communication with weighing-machine and including this method to the communication network with the communication terminals. The thesis describes the selection of the communication bus and defines requirements for the function of the communication terminal and utility program. The study also describes the hardware and firmware of the communication terminal. In the conclusion, the work describs the utility program including data model.
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Data acquisition by electronic scales for packaged articles
Chrenka, Eduard ; Šír, Michal (referee) ; Štohl, Radek (advisor)
The thesis deals with the issue of weighing of prepackaged goods and control of packing process . The thesis describes the method of communication with weighing-machine and including this method to the communication network with the communication terminals. The thesis describes the selection of the communication bus and defines requirements for the function of the communication terminal and utility program. The study also describes the hardware and firmware of the communication terminal. In the conclusion, the work describs the utility program including data model.
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Controller of hot runner for injection molds
Chrenka, Eduard ; Fiedler, Petr (referee) ; Štohl, Radek (advisor)
The thesis focuses on implementation of a hot runner controller for injection molds for plastic materials with a maximum number of 56 regulated zones. The first part of the thesis deals with already existing and used solutions of the given subject. The following part of the thesis describes the principles of temperature measurement by means of thermoelectric sensors, including their linearization as well as communication protocols MODBUS, EUROMAP 17. The identification of a regulated system ( heating zone) has been carried out before the hardware design. The development process is divided into some parts : system conception, hardware design, software development. The controller consists of measuring modules designed to collect data and handle power controllers for management of performance of heating elements. The necessary calculation power is integrated into the controllling computer. All parts of a hot runner controller are implemented taking into account the costs.
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