Design of large and thin⁃welled injection mold with SVG for car right⁃tuer hinten

doi:10.19491/j.issn.1001-9278.2022.01.024

Abstract

Abstract:

In this work， we designed a large and thin?walled injection mold with a sequential valve hot runner. The advanced and reasonable mold gating system was determined using the analysis of mold flow. The difficult problem from demolding plastic parts was successfully solved using a side core?pulling structure with a configuration of ′inclined top+inclined top rod′ and ′oil cylinder+shovel base+slider′. The labor productivity increased by about 10 % by using the conformal cooling channels. The first shoot was successful and the precision of the plastic parts met the requirements of mold design.

Key words: car right?tuer hinten, large and thin?walled injection mold, sequential valve hot runner, mode flow analysis, side core?pulling mechanism, conformal cooling channel

CLC Number:

TQ320.66⁺2

ZHANG Weihe, FENG Guoshu, ZHU Xiaoming, WU Zichun, YE Mingshan, DU Hai, SONG Dongyang, WANG Jing. Design of large and thin⁃welled injection mold with SVG for car right⁃tuer hinten[J]. China Plastics, 2022, 36(1): 166-171.

Figures/Tables 15

Fig.1. Right rear door of car

Fig.2. Car right?tuer hinten

Fig.3. Sequential valve hot runner system

Fig.4. Analysis of weld marks

Fig.5. Analysis of shrinkage

Fig.6. Analysis of deformation

Fig.7. Injection mold stracture of car right?tuer hinten

Fig.8. Exhaust system of the injection mould

Fig.9. Core?pulling mechanism of the injection mold

Fig.10. Core?pulling mechanism of out side

Fig.11. Cooling system of the injection mold

Fig.12. Stereogram of the mould

Fig.13. Stereogram of ejection system

Fig.14. Injection mold of car right?tuer hinten

Fig.15. Car right?tuer hinten

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