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Technology design manufacturing threaded plastic ends
Vrátný, Martin ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This diploma thesis submits a proposal of technology design manufacturing threaded plastic ends. In the first part it deals with literary studies of plastics and plastic injection molding. In the second part is the design of an injection form for the specified component. Part of the practical part is also the right choice of material and the injection mold, which was designed based on the calculations of technological parameters. In the conclusion of this thesis is technical economic evaluation.
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Production of injection molded parts
Kratina, Patrik ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
The work, elaborated within B-STG Engineering Bachelor´s degree program, is focused on the topic of injection molding into molds. In the introductory part, the work deals with materials suitable for injection. In the next chapter, the work is focused on the process of injection and description of individual parts and components of the injection machine and its tools. The thesis contains the concept of the technology of production ( injection moulding into metal molds) and its design solution. The conclusion of the thesis includes economic evaluation, attachment and drawing documentation.
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Production technology of plastic lamp shade
Čajan, Tomáš ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This master thesis deals with design of injection molding technology for plastic lamp shade made of polycarbonate labelled Lexan 925. The injection is performed into injection mold with hot runner system. Initially there is a general study related to plastic materials and injection molding technology. Further the study continues with technological solution of production of the lamp shade. The designed injection mold is two-plate, double cavity mold with two hot nozzles and is equipped with a thread-unscrewing machine. This thesis contains part of the documentation and item list of the injection mold, along with technical-economical evaluation of the developed solution.
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Production of components 'COVER'
Václavek, Jiří ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
The theory of plastic injection molding technology together with procedure of designing injection molds is elaborated in this master thesis. Also, the technology of production is designed, derived from assigned component „cover“ analysis affirmed by necessary calculations. On the bases of these calculations, injection machine fitting requirements is chosen. Then injection mold is designed for the assigned component. Simulation of injection is performed for this mold using Autodesk Inventor 2011 and its module Moldflow and then results are thoroughly analyzed. Economical evaluation for this component is then executed towards the end of the thesis.
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Optimization of production technology for plastic cap tube
Majerčíková, Erika ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This thesis deals with the optimization of the production technology of the cap tube made by injection molding. Series production is set at 5 000 000 units per year; the minimum time of the production is 5 years. A literary study is developed, focusing on the technology of injection molding in molds including the possibilities of the optimization of the production by changing the structure of the mold. The practical part of the thesis is devoted to the optimization of existing mold with cold runner system for the production of the cap tube, using the hot runner system supplied by Synventive. The change of the structure of the mold involves changing the three plate mold to a two plate mold. It is about changing the fixed part of the mold in which the hot runner system is placed; it is composed of standards parts of the company HASCO. Based on the technological parameters the injection machine Krauss Maffei KM 80-380 CX is chosen. There is a technical-economical evaluation of the optimization of the production by using the hot runner system at the end of the thesis.
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Methodology of injection mold design in the CATIA V5
Přikryl, Adam ; Koutecký, Tomáš (referee) ; Paloušek, David (advisor)
This bachelor's thesis descirbes the design solution of an injection mold for the cover of the cooling-air fan from the truck. Software Catia V5R19 is used for the design solution. First part of the bachelor's thesis describes basic information about injection molds, molding machines and injection cycle. Very solution of the thesis describes the proces of designing an injection mold for the specified plastic part. Part of the design is the 3D model of injection mold.
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Production technology of plastic holder roof rack
Nevřivý, Lukáš ; Šalša, Josef (referee) ; Kandus, Bohumil (advisor)
This master’s thesis focuses on a design of injection mold which is used for manufacturing of a plastic holder of roof rack. The first part includes shape analysis of the holder and explains function of the product as well as specify essential requirements which must be met. The choice of the most suitable manufacturing technology is followed by theoretical part which deals with literature review of plastic materials, technology of injection molding and basics of injection mold designing. Practical part includes overall design of the mold for the holder of roof rack based on technological calculations. Practical part is followed by mold flow analysis simulation showing suitability of designed mold along with selection of suitable injection molding machine based on product construction design and technological process of manufacturing. The conclusion of master’s thesis includes an economical evaluation of proposed manufacturing technology.
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Optimization of the vacuum deaeration of the injection mold
Rohlínková, Marie ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
The project elaborated design of optimization venting of molds exhibiting bubbles or low quality weld lines. Based on a literature study of the injection mold venting, the use of vacuum venting, namely the VACUUMJET system of the Spanish CUMSA manufacturer, has been proposed. The experiments proved the elimination of bubbles in the part and the marked improvement of visual quality of the weld lines. The effect on the closing force was not confirmed. The use of the system is more economical for larger batches production, or when high quality parts are required that allow price increasing.
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Production technology of plastic threaded adapters
Turek, Tomáš ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
The Master thesis deals with the possible production of the plastic unit with thread. As the most suitable material was chosen the polyformaldehyde (POM), its production label is Delrin 500P NC010 by Du Pont. The thesis consists of a part with the information about the technology of injection molding of plastics and a part where processing parameters for the production of the plastic unit are designed. Part of the solution was to create an assembly design of injection mold. Since the plastic unit with thread is very specificly shaped the form is handled as a slide mold. The mold is pieced together from normalized parts by the Hasco and DME company. The serie of 100 000 pieces would be delivered in 5 months. Because of the cost savings a solution of the cold-runner system was suggested. A suitable injection molding machine was chosen from the calculated values from Arburgfroms – Type 370s Allrounder 500-170.At the end of the thesis costs were evalueted for acquire per one piece of adapter.
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Analysis and production of a part from an injection mold
Dudek, Ladislav ; Mouralová, Kateřina (referee) ; Kalivoda, Milan (advisor)
The aim of the thesis was to make a 3D model of the injection mold for injection moulding machine, to determine the production process and to evaluate the technical and economic aspects. The first part describes the input parameters, which need to be clarified and determined before the construction of the tool. In the second part the individual parts of the injection mold and their solutions are analyzed. The third part of the thesis deals with the creation of a 3D model of mold. The program in which the model was created and the main features of the program.The fourth part describes the production process with a description of each operation.What part of the mold is the given operation introduced, what to do with the operation and why this operation has been selected. In the fifth part, two of the production operations, namely roughing and EDM, are analyzed. The sixth part describes the technical aspects that are necessary for the construction of the tool and the evaluated economic aspect. The last part summarizes the main data from the whole work.
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