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Suggestion for rationalization of injection mould part production
Kamenická, Eva ; Kalivoda, Milan (referee) ; Sedlák, Josef (advisor)
The diploma thesis deals with suggestion for rationalization of production of an injection mould cavity plate and of a part responsible for cooling of the final plastic product. The main objective is to reduce the production time while meeting the high requirements for dimensional and geometric accuracy and surface integrity of the manufactured parts. The thesis starts with a theoretical analysis of the production of mould parts. This is followed by an analysis of the initial state of production, which consists of the characteristics of the previously mentionned manufactured parts, the available production means and a description of the original technological process. The experimental part of the thesis explains the procedures and justifies the choices made in the creation of new programmes within the CAM software Cimatron. Several possible variations of tools and cutting parameters have been experimentally tested and their final choice is justified in the thesis. The output of the thesis is a new manufacturing process for the production of both components, which has been applied in practice and evaluated on the basis of the results of testing the quality of the components and the plastic product itself. In the conclusion of the thesis can be found an evaluation of the output of the thesis and a time comparison of the previous process with the new suggestion. All experiments and measurements, including the production of the components themselves, were carried out in the toolroom of ITW PRONOVIA, s.r.o. in Veľká Bíteš, which is also the creator of the topic of this thesis.
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Design of manufacturing technology for plastic cogwheel
Vyhnanovský, Jaroslav ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This project has been developed within the master study of Engineering Technology and Industrial Management a design of manufacturing technology for plastic cogwheel is introduced. The cogwheel will be produced by plastic injection moulding. POM material with a trade name Delrin 100 NC010 from DuPont Company will be used. An injection mould is a tool for producing a plastic cogwheel using injection moulding technology. Production will take place on the machine Allrounder 420 C Golden Edition 1000-290 from Arburg German Company headquartered in Loßburg, where the seat of parent company is situated.
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Design of manufacturing technology for door elastomer grommet
Kavan, David ; Stehlík, Ing. Jaroslav (referee) ; Kandus, Bohumil (advisor)
The goal of this project is design of manufacturing technology for door elastomer grommet in a series of 400 000 units per year. As a proposed solution of manufacturing technology has been chosen multicomponent injection moulding. Appropriate thermoplastic elastomer and polyamide was chosen based on the knowledge gained in theoretical study of materials and technologies elaborated in the second part of the project. Moreover, the shape of the door grommnet was redesigned in accordance with the chosen technology. Working machine was chosen from manufacturer Arburg, model Allrounder 630S in a two-shot design, complemented by the index unit. A cost of production of one piece of the door grommet was determined in an economic evaluation. This cost was compared with current cost of production and new technology reducing manufacturing costs of one series by 25%.
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Production of components "Key pouch"
Kašpar, Jan ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
The main aim of this thesis is the production of injection moulds for a given component key pouch. The first part of the work describes the basic division of plastics, plastic injection technology and principles of mould construction. The second part deals with actual mould construction processed in Solidworks. The drawing documentation is the output. In conclusi-on, an economic evaluation is completed that will provide approximate cost of production moulds.
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Production technology of plastic body aperture
Dluhoš, Jan ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This thesis deals with the production of a plastic body of the aperture by the method of injection moulding. The work includes a design of the injection mould for the given component. First, an appropriate material for the moulded piece was chosen and then the necessary calculations for the injection mould were made. A quadruplex injection mould with a heated inlet nozzle and pullout cores was designed based on these calculations. Modular components were chosen when designing the injection mould. The next part of the thesis contains the selection of the injection moulding machine for the given mould. The conclusion contains a technical-economical evaluation including the cost estimating for the injection mould and cost estimating for one moulded piece.
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Production technology of plastic base device with terminal
Horník, Tomáš ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
Master’s thesis deals with selection of a proper technology for manufacturing of chosen plastic part. The beginning of thesis contains part survey. Plastic injection was chosen as the most suitable manufacturing technology. Required theoretical knowledge for plastic injection mould designing were extracted in the recherche. Individual chapters deals with plastics, their manufacturing and plastic injection technology with all required knowledge about this technology, machines and moulds. Designing chapter contains every required calculation for mould design and all individual sections of mould design and injection machine selection. Injection simulations and their evaluations are part of this thesis aswell. Assembly and forms drawings as well as other documents used during thesis processing are included in the attachments.
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Design of mold for plastic injection with hot inflow system
Okurka, David ; Kandus, Bohumil (referee) ; Hušek, Martin (advisor)
This thesis describes a design of an injection mould for plastic part "Sleeve", that is intended for guiding of sliding door hardware. The part is manufactured from PE-HD, production quantity is 3 000 000 pcs annually. Based on calculations and review of specialized literature the design utilizes hot runners of MH system by Ewicon. The tool is assembled from normalized components by Hasco and an injection press BOY22D was suggested for parts production. Total costs for production of 1 part are 0,26 CZK.
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Design of injection mould for plastic component of spinning machine
Černohous, Josef ; Prokeš, František (referee) ; Koutný, Daniel (advisor)
Bachelor’s labour is concerned about present knowledge with injection moulding in first chapter, focused on machines forms, kinds of moulding materials. It also deals with technology of holding form temperature. In second chapter it engages with analysis and problem definition. Third part limits objectives of fourth part, form construction. There are single parts of moulding form closely described. Last chapter estimates construction based on it’s realization.
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Manufacturing technology of plastic mixing body tube corpus
Pipek, Josef ; Vonka, Vladimír (referee) ; Kandus, Bohumil (advisor)
This master´s thesis deals with the complex manufacturing technology of plastic injection moulding. Literary work summarises knowledge of thermoplastic injection, thermoplastic bonding and choosing the right material for the given product. The reaction between the product and chemical substances plays a key role when choosing the right material. Therefore polypropylene is chosen for its high chemical and mechanical resistance. The given material is defined by technological data and technological process is proposed. A single-purpose injection mould for an existing injection machine is proposed for manufacturing the plastic mixing body tube corpus.
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Production of car wheel cover
Říha, Pavel ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
The Master’s thesis is concentrated on a thermoplastic injection technology and in particular on heat balance of tool. In the theoretical part, literary study, is shortly described actual knowledge in these branches. In the practical part is solved the design of tool for production of the specific plastic part. This thesis insists on the proposal and selection of applicable cooling system in the tool and on optimization of the technology parameters of injection proces. Those proposals are evaluated by simulation software Cadmould 3D-F. In the end of this thesis is performed the economic analysis of plastic part production costs.
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