新型轴向伸缩式汽车轮胎成型模结构设计

Structure design of forming die for new axially telescopic tire

针对不同鼓宽要求下径向伸缩成型鼓鼓架伸缩范围受限的问题,从结构方面对传统双滑块式径向伸缩鼓进行改进,利用旋转装置的旋转运动带动连杆摆动使鼓架和鼓肩只做径向运动,设计了一种新型轴向伸缩式汽车轮胎成型模。成型鼓在改变径向伸缩比时不会使鼓宽随之变化,在轴向实现零行程,缩短了轴向内部空间,使结构更加紧凑,同时提高了成型精度,在伸缩比大但鼓宽小的场合中尤为适用。

In order to solve the problem of limited extension range of radial telescopic drum frame under the requirements of different drum width,the structure of traditional double slider radial telescopic drum was improved.The rotary motion of the rotary device driven the connecting rod to swing so that the drum frame and drum shoulder move radially.A new type of die for forming axial⁃ly telescopic tire was designed.When changing the radial extension ratio of the drum,the drum width would not change with it.The zero stroke in the axial direction was realized,which greatly shortened the axial internal space,made the structure more compact and improved the forming ac⁃curacy.It is especially suitable for the occasions with large extension ratio but small drum width.