• Title/Summary/Keyword: 다량생산 성형기

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Domestic Development of Vibrational Film Forming Machine and Die in the High Speed Production(II) - Multi-production forming machine - (고속 생산형 필름 진동판 성형기 및 금형 국산화 개발(II) - 다량 생산 진동판 성형기 -)

  • Kim, Jungl-Hyun
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.13 no.1
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    • pp.52-58
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    • 2014
  • This study consists of two parts. The first discusses the development of a single production forming machine which was reported in earlier papers. The second outlines the development of a multi-production forming machine, which consists primarily of a film feeding unit, an unwinding unit, and a heating block unit. The heating block unit of the multi-production forming machine has 30 members per die. An analysis of the stress deformation and temperature deviation of this machine is carried out using ANSYS Workbench and CFX-11 under the design conditions. According to this analysis, the maximum deflection in the Z-direction is $0.05104{\mu}m$ and the maximum temperature deviation is $0.7^{\circ}C$ when the temperature of the heating block unit is $175^{\circ}C$. It was also found that these values are structurally safe. The advantage of the developed multi-production forming machine is demonstrated to be in its offering of a proper voice test.

The Current Status of Recycling Process and Problems of Recycling according to the Packaging Waste of Korea (국내 포장 폐기물에 따른 재질별 재활용 공정 현황 및 재활용 문제점)

  • Ko, Euisuk;Shim, Woncheol;Lee, Hakrae;Kang, Wookgeon;Shin, Jihyeon;Kwon, Ohcheol;Kim, Jaineung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.24 no.2
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    • pp.65-71
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    • 2018
  • Paper packs, glass bottles, metal cans, and plastic materials are classified according to packaging material recycling groups that are Extended Producer Responsibility (EPR). In the case of waste paper pack, the compressed cartons are dissociated to separate polyethylene films and other foreign substance, and then these are washed, pulverized and dried to produce toilet paper. Glass bottle for recycling is provided to the bottle manufacturers after the process of collecting the waste glass bottle, removing the foreign substance, sorting by color, crushing, raw materializing process. Waste glass recycling technology of Korea is largely manual, except for removal of metal components and low specific gravity materials. Metal can is classified into iron and aluminum cans through an automatic sorting machine, compressed, and reproduced as iron and aluminum through a blast furnace. In the case of composite plastic material, the selected compressed product is crushed and then recycled through melt molding and refined products are produced through solid fuel manufacturing steps through emulsification and compression molding through pyrolysis. In the recycling process of paper packs, glass bottles, metal cans, and plastic materials, the influx of recycled materials and other substances interferes with the recycling process and increases the recycling cost and time. Therefore, the government needs to improve the legal system which is necessary to use materials and structure that are easy to recycle from the design stage of products or packaging materials.