Design of injection mould for long circular tube based on non-standard demoulding mechanism
The structure of the plastic product was analyzed,and in view of at the structure with large length of the product,a non-standard demoulding mechanism was designed.First,the core pulling along the axis of the product was demoulded,and the movement distance was 2/3 of the length of the product.Then the core pulling mechanism was lifted up without completely separat-ing from the product,and then the product was taken out along the axis.For the structure of three long slots evenly divided in the outer cylinder of the product,one of the long slots was placed downward and formed by the moving half of the mould,and the other two long slots were placed tilted upward and demoulded by two sliders tilted upward.For the structure with close distance be-tween square hole and buckle position,the linkage demoulding mechanism was designed,which was driven by the square hole slider.In order to avoid the upper slider,the wedge of the linkage re-lease mechanism was located below the slider seat.In order to make the wedge leave the slider seat before the mechanism demoulding,the first opening of the mould was positioned between the clamping plate of moving half and the moving plate.In order to avoid the injection defects occur-ring on the product,the hot runner to cold runner gating system was used.To keep the mould tem-perature even,the water well&through water cooling system was designed.
long circular tubenon-standard demoulding mechanismhot runnerlinkage demould-ingtwice demoulding
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维普
