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    One piece self-standing blow molded plastic bottles
    1.
    发明授权
    One piece self-standing blow molded plastic bottles 失效
    一件自立吹塑塑料瓶

    公开(公告)号：US4780257A

    公开(公告)日：1988-10-25

    申请号：US55647

    申请日：1987-05-29

    申请人： Martin H. Beck

    发明人： Martin H. Beck

    IPC分类号： B29C49/00 ,  B29C49/06 ,  B29C49/12 ,  B65D1/02

    CPC分类号： B65D1/0276 ,  B29C49/0073 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14326 ,  B29B2911/1433 ,  B29B2911/14331 ,  B29B2911/14332 ,  B29B2911/14333 ,  B29B2911/14336 ,  B29B2911/14337 ,  B29B2911/14338 ,  B29B2911/1444 ,  B29B2911/14486 ,  B29C49/06 ,  B29C49/12

    摘要： A one-piece plastic bottle of the champagne base variety having an annular peripheral chime surrounding an inward sloping base portion for containing carbonated beverages and associated methods for making the bottle by blow molding. To make the bottle resist to inversion of the base from internal pressure, an integral reinforcing ring is incorporated into the base and runs horizontally in the hoop direction. The reinforcing ring is placed in a location within the base that has a moment arm trying to invert the base and providing sufficient strength to withstand that moment arm and prevent inversion of the inward sloping portion. A blow molding process for producing a one-piece plastic bottle by expanding an elongated hollow preform containing PET plastic material for the neck, body and base of the bottle into a mold, forming the preform with annular thickened portions positioned such that during blowing of the preform the material of the preform will be deposited as desired; positioning the preform within a blow molding cavity defining the finished bottle shape; and, injecting pressurized gas into the preform adjacent the neck whereby the preform is radially stretched outward to fill the cavity and form the bottle. In one embodiment, the method further includes the step of extending a stretch rod within the preform into the cavity towards the bottom thereof to longitudinally stretch the material of a foreshortened preform to fill the cavity from the top to adjacent the bottom thereof prior to the blowing step.

    摘要翻译： 一种香槟底座品种的一体式塑料瓶，具有围绕向内倾斜的基部的环形周边钟，用于容纳碳酸饮料，以及通过吹塑成型制造瓶子的相关方法。 为了使瓶子抵抗内部基座的内部压力，整体加强环被并入基座中并沿着环向方向水平延伸。 加强环被放置在基座内的位置，该位置具有试图翻转基座的力矩臂并提供足够的强度以承受该力矩臂并防止向内倾斜部分的反转。 一种用于制造单件塑料瓶的吹塑方法，其通过将含有用于瓶颈的颈部，主体和底部的PET塑料材料的细长空心预制件膨胀成模具，形成具有环形加厚部分的预型件， 预成型件预成型件的材料将根据需要沉积; 将预成型件定位在限定成品瓶形状的吹塑成型腔内; 并且将加压气体注入邻近颈部的预成型件中，由此预制件向外径向拉伸以填充空腔并形成瓶子。 在一个实施例中，该方法还包括以下步骤：将预成型件内的拉伸杆延伸到空腔中以朝向其底部延伸，以纵向拉伸经过缩短的预制件的材料，以在吹塑之前从顶部到其底部填充空腔 步。