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Utformning av plastförpackningsöppnare
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
2010 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Design of plastic packaging opener (English)
Abstract [sv]

Många moderna plastförpackningar är mycket svåra att bryta och skapar stor frustration hos konsumenter när de vill packa upp sin produkt. Vanliga hushållssaxar räcker sällan till, och ofta används potentiellt osäkra verktyg, exempelvis knivar eller rakblad, som substitut. Risk för skada på person eller produkt förekommer därmed. Projektet avsåg att ta fram en ny produkt som löser dessa problem, och till denna produkt ett underlag för prototyptillverkning. Som en ledning i framtagandet av den nya produkten undersöktes befintliga lösningar på problemet med avseende på form, funktion och pris. Ett beslut fattades att skapa ett redskap som bryter förpackningen genom att dess kanter skärs bort. Redskapet skulle tillverkas i plast och ha en skärande del i metall eller keram. Viktigt var att produkten skulle vara säker, användarvänlig och ha ett lågt pris till slutkund. Projektet resulterade i att ett underlag för prototyp- och eventuell serietillverkning för produkten togs fram. Redskapet skulle formsprutas i ABS-plast och knivbladet tillverkas av härdat kolstål. En kostnadsanalys för prototyptillverkningen visade att en serie om tio funktionsdugliga prototyper skulle kosta totalt 22 500 kr att framställa. För att gå vidare med projektet och eventuell påbörja serietillverkning ansågs det nödvändigt att prototyper skulle tillverkas, testas och utvärderas för att verifiera de krav på produkten som specificerats. Vidare skulle simuleringar av formsprutningsprocessen behöva göras, för att säkerställa att inga allvarliga deformationer av detaljen uppstår under tillverkningen.

Abstract [en]

Many modern plastic packages are very hard to open and cause great frustration among the consumers when they are trying to unpack their products. Ordinary household scissors are rarely strong enough, and consumers often have to resort to potentially unsafe tools such as razor blades and knives. This project intended to develop a new product that were able to solve the mentioned problems, and to this product a dossier for prototype manufacturing. As guidance to the development of the new product, existing solutions were examined in regard to their appearance, function and market price. A decision was made to develop a tool that breached the plastic packages by cutting off their edges. The tool was to be made in plastic and have a cutting blade made of metal or ceramics. The most important aspects of the product were safety, user friendliness and a low market price. By the end of the project a dossier containing information about prototype- and possible mass production had been made. The tool was to be made of injection molded ABS-plastic, and the cutting blade was to be made of hardened carbon steel. A cost analysis had been made regarding the prototype manufacturing which showed that the price for manufacturing a series of ten fully functional prototypes would cost 22 500 SEK to produce. To continue this project and eventually commence mass production of the product, it was considered necessary to produce a small series of prototypes to be tested and assessed to verify that the product met the requirements that had been specified. Furthermore, simulations of the injection molding were considered necessary to verify that no serious deformations on the plastic tools occurred during the mold process.

Place, publisher, year, edition, pages
2010.
Series
, MMKB 2010:16 IDEB 036
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-172082OAI: oai:DiVA.org:kth-172082DiVA: diva2:845634
Available from: 2015-10-19 Created: 2015-08-12 Last updated: 2015-10-19Bibliographically approved

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