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    Compression molding and trimming blow pin assembly
    1.
    发明授权
    Compression molding and trimming blow pin assembly 失效
    压缩成型和修边吹针组件

    公开(公告)号：US5449284A

    公开(公告)日：1995-09-12

    申请号：US202267

    申请日：1994-02-25

    申请人： Dennis R. Spina

    发明人： Dennis R. Spina

    IPC分类号： B29C49/04 ,  B29C49/76 ,  B29C49/08 ,  B29C49/30 ,  B29C49/50

    CPC分类号： B29C49/76 ,  B29C2793/00 ,  B29C49/04

    摘要： A method and apparatus for producing a hollow article having a blow molded portion and a compression molded portion. Plastic is extruded over a blow pin assembly to form a parison having an open end and a diameter larger than the diameter of the article's mouth. The blow pin is movable relative to the parison and includes a male mold member on its end. The male mold member has a molding surface corresponding in shape to the compression molded portion of the article. A cutting member is also provided on the blow pin. The cutting member is also movable relative to said parison. Once the parison is enclosed in a hollow mold, the male mold member of the blow pin compresses a portion of the parison between the second portion of the hollow mold and the molding surfaces of the male mold member so as to form the compression molded portion of the article. The cutting member is then moved downwardly relative to the parison so as to sever the parison at a position generally within the second portion of the mold and above the compression molded portion of the article. Air is then admitted through the blow pin into the interior of the parison to blow mold the blow molded portion of the article.

    摘要翻译： 一种具有吹塑成型部和压缩成型部的中空制品的制造方法和装置。 将塑料挤压在吹塑针组件上以形成具有开口端和直径大于制品口径的型坯。 吹塑销相对于型坯是可移动的，并且在其端部上包括阳模构件。 阳模构件具有与制品的压模部分相对应的成型表面。 吹塑销上还设有切割件。 切割构件也可相对于所述型坯移动。 一旦将型坯封闭在中空模具中，吹塑销的阳模构件将中空模具的第二部分和阳模构件的模制表面之间的型坯的一部分压缩，以形成压缩模制部分 文章。 然后，切割构件相对于型坯向下移动，以便在大体上在模具的第二部分内部和位于制品的压模部分的位置处切割型坯。 然后，空气通过吹塑销进入型坯的内部，以吹塑制品的吹塑成型部分。

    Extrusion head for blow molding
    2.
    发明授权
    Extrusion head for blow molding 失效
    吹塑挤出头

    公开(公告)号：US5620722A

    公开(公告)日：1997-04-15

    申请号：US538721

    申请日：1995-10-03

    申请人： Dennis R. Spina

    发明人： Dennis R. Spina

    IPC分类号： B29C47/22 ,  B29C47/20 ,  B29C49/04

    CPC分类号： B29C47/22 ,  B29C47/0026

    摘要： An extrusion head for extruding a polymer into a parison for blow molding and including a die ring and a mandrel. The die ring and mandrel each include a frustoconical portion. One frustoconical portion is shaped over its full length to define an ovalized annular outlet. The frustoconical portion is also shaped over less than its full length with a recess that is rotationally offset from the first and generally located upstream therefrom. The shapings result in the prison being extruded in a controlled manner through the outlet orifice with a predetermined area of increased thickness.

    摘要翻译： 一种用于将聚合物挤出到用于吹塑成型的型坯中并包括模具环和心轴的挤出头。 模具环和心轴各自包括截头圆锥形部分。 一个截头圆锥形部分在其全长上成形以限定椭圆形的环形出口。 截头圆锥形部分也成形得小于其全长，其中凹部从第一部分旋转偏移并且通常位于其上游。 造型导致监狱以受控的方式通过具有增加厚度的预定区域的出口孔挤出。