Design of injection mold with two⁃step core⁃pulling mechanism for intake manifold of a motorcycle engine

doi:10.19491/j.issn.1001-9278.2024.04.014

Abstract

Abstract:

The Kawasaki motorcycle engine intake manifold has a complex structure. A two⁃step core⁃pulling mechanism was designed due to the presence of inclined holes in the holes as well as a strong core⁃pulling force somewhere. A lifter was designed on both stationary half and moving half. A plate was added to the three⁃plate mold for the inclined core⁃pulling on the stationary half. Aim at four parting surfaces on the mold， a sequential distance parting mechanism was designed. The results indicated that the mold structure is reasonable， reliable and can meet the requirements of production.

Key words: injection mold, two?step core?pulling mechanism, core?pulling on inclined hole in hole, inclined core?pulling on stationary half

CLC Number:

TQ320.66

LIU Qingdong. Design of injection mold with two⁃step core⁃pulling mechanism for intake manifold of a motorcycle engine[J]. China Plastics, 2024, 38(4): 88-91.

Figures/Tables 11

Fig.1. Part structure

Fig.2. Parting surface

Fig.3. Appearance of the mould

Fig.4. Cavity and core insert

Fig.5. Gating system

Fig.6. Slides

Fig.7. Angle pin for two⁃step core⁃pulling

Fig.8. Angle pin and hydraulic cylinder for two⁃step core⁃pulling

Fig.9. Inclined core⁃pulling on stationary half

Fig.10. The ejector

Fig.11. Cooling system

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