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    Method for heating and blow molding plaster parisons
    4.
    发明授权
    Method for heating and blow molding plaster parisons 失效
    用于加热和吹塑塑料浆的方法

    公开(公告)号：US4117050A

    公开(公告)日：1978-09-26

    申请号：US728828

    申请日：1976-10-01

    申请人： Adolf Appel ,  Claus Horwege ,  Wolfgang Reymann ,  Otto Rosenkranz

    发明人： Adolf Appel ,  Claus Horwege ,  Wolfgang Reymann ,  Otto Rosenkranz

    IPC分类号： B29C35/08 ,  B29C49/08 ,  B29C49/64 ,  B29C49/68 ,  B29C65/00 ,  B29C17/07

    CPC分类号： B29C49/6418 ,  B29K2067/00

    摘要： A method for blow molding containers and the like articles from thermoplastic parisons. The parisons are heated in two stages, i.e., in a pre-heating oven to a uniform temperature less than the blow molding temperature and by infra red radiation to a final blow molding temperature which, preferably, is non-uniform along the length of the parison. The non-uniform heating is accomplished by moving the parison axially through an annular infra red radiator at varying rates of speed. Since the degree of heating is directly proportional to the time of exposure to the radiation, a variable temperature profile can be imparted to the parison by means of a simple speed program. Such a variable temperature profile results in controlled wall thickness distribution during blow molding, and the final container is of enhanced strength and of lower weight.

    Method of making hollow articles, especially bottles, of thermoplastics
    9.
    发明授权
    Method of making hollow articles, especially bottles, of thermoplastics 失效
    制造热塑性塑料中空制品，特别是瓶子的方法

    公开(公告)号：US4035463A

    公开(公告)日：1977-07-12

    申请号：US587005

    申请日：1975-05-19

    申请人： Otto Rosenkranz ,  Karl-Heinrich Seifert

    发明人： Otto Rosenkranz ,  Karl-Heinrich Seifert

    IPC分类号： B29C49/06 ,  B29C49/36 ,  B29C49/68 ,  B29C57/10 ,  B29C17/07

    CPC分类号： B29C49/36 ,  B29C49/68 ,  B29C57/10 ,  B29C49/06

    摘要： Hollow articles of thermoplastics, especially bottles, are made from tubular blanks by heating the ends thereof and press molding first their bottom and neck portion. Then the preformed blanks are heated around their center portion and are transferred into blow molds for inflating them to the final shape. The machine consists of a first rotary table with preheating and press molding means, a second rotary table with final heating means and a third rotary table with blow molds. The rotary tables are connected by transfer stations so that the blanks can be automatically transmitted and conveyed around all tables. The high throughput allows installation before racking plants.

    摘要翻译： 热塑性塑料，特别是瓶子的中空制品由管状坯料制成，通过加热其端部并首先将其底部和颈部压制成型。 然后将预制的坯料围绕其中心部分加热并转移到吹塑模具中以将它们充气至最终形状。 该机器包括具有预热和压制成型装置的第一旋转台，具有最终加热装置的第二旋转台和具有吹塑模具的第三旋转台。 旋转台由转运站连接，使得坯料可以自动传送并传送到所有的桌子上。 高产量允许在装卸厂之前进行安装。