사출성형기 실린더 바디의 최적화 설계에 관한 연구

다국어 초록 (Multilingual Abstract)

An injection unit is the important part which guide the melted resine into the mold. Once injection molding is performed, there will be a pressure of 33 MPa built up inside of injection cylinder body. It was confirmed that the crack occurs by internal stress on the 9 mm material when the machine is used for long time. Because the cylinder rod has material thickness of 9~12 mm during manufacturing process on the cylinder body, there would be 3 mm thickness differences. In this experiment, IDEAS, a computer aided structure analysis software, is used to present the optimized design condition. Insert rod with inner diameter of 9 mm was set as a normal and vary 3 mm in x, y axis direction. When the internal pressure of 33 MPa occurs at the injection unit, fix the x and y direction and find out the stress acting only in z axis. It was confirmed that the stress of 45~82 N/mm 2 was built up when the left of cylinder body had been set 9 mm by using a structure analysis. Also, it has been verified the thickness of the material on the left need to be greater and equal than 12 mm to prevent a material crack by an internal stress.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 소재결함 분석
• 3. 인젝션 실린더 바디 설계
• 4. 결과 및 고찰
• 5. 결론
• References

참고문헌 (Reference)

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2 김현민, "구조해석을 통한 사판식 유압펌프의 손상원인 및 강도개선 연구" 한국기계기술학회 18 (18): 448-453, 2016

3 H. S. Jung, "Uncertainty Evaluation for the Determination of Injection Temperature in Injection Molding Machine" 8-12, 2010

4 H. S. Jung, "Structural Analysis of FlexLink in Hydraulic Injection Molding Machine" 117-120, 2009

5 H. S. Jung, "Structural Analysis of C-Frame in Injection Molding Machine" 125-128, 2009

6 J. S. Kim, "Stress Analysis and Durability Design of Tie Bars of a Hydraulic Injection Molding Machine"

7 V. A. Samir, "Minimizing Deflection and Bending Moment in a Beam with End Supports" Georgia Institute of Technology 1-22, 2003

8 H. S. Jung, "An Experimental Study on the Precision test according to control method Injection Molding Machine" 31-35, 2011

9 S. W. Jung, "A Study on the Bending Stress of Tie-bar caused by Platen Deformation in the Injection Molding Machine"