公开(公告)号：US06254813B1

公开(公告)日：2001-07-03

申请号：US09258606

申请日：1999-02-26

申请人： Helmut Eckardt ,  Jurgen Ehritt ,  Karl-Heinz Hill

发明人： Helmut Eckardt ,  Jurgen Ehritt ,  Karl-Heinz Hill

IPC分类号： B29C4502

CPC分类号： B29C67/246 ,  B29B7/7461 ,  B29C45/1753 ,  B29C45/581

摘要： An apparatus and method provides that before, during, and/or after the plastic objects have been injection molded, a portion of the first plastic component, the second material, and/or a mixture of the two components is conveyed to at least one storage element with a variable volume. This element adjoins the flow path of the material melt. After completion of the injection molding process of the plastic objects and/or before the material is injected for the next plastic object to be produced, the plastic or the material stored in a storage element with a variable volume is conveyed to the flow path of the melt of the plastic or material. This frees the melt flow path of a mixture of the two plastic components and/or obtains a desired material mixture for producing the next plastic object.

摘要翻译： 一种装置和方法提供了在塑料物体已被注模之前，期间和/或之后，第一塑料部件，第二材料和/或两个部件的混合物的一部分被传送到至少一个存储 元素具有可变体积。 该元件邻接材料熔体的流动路径。 在完成塑料物体的注射成型处理之后和/或在为下一个要生产的塑料物体注入材料之前，将存储在具有可变体积的存储元件中的塑料或材料输送到 熔化塑料或材料。 这释放了两种塑料组分的混合物的熔体流动路径和/或获得用于生产下一个塑料物体的所需材料混合物。

公开(公告)号：US06468464B1

公开(公告)日：2002-10-22

申请号：US09491009

申请日：2000-01-25

申请人： Helmut Eckardt ,  Jurgen Ehritt ,  Karl-Heinz Hill

发明人： Helmut Eckardt ,  Jurgen Ehritt ,  Karl-Heinz Hill

IPC分类号： B29C4500

CPC分类号： B29C45/581 ,  B29C45/30 ,  B29C45/54 ,  B29C2045/308 ,  B29C2045/583

摘要： The invention relates to a method and an apparatus for injection molding parts, which comprises a mixture of at least one plastic material and at least one additive in the form of fibrous or powdered fillers or reinforcement materials. The method comprises the following steps: a) plasticizing a mixture of the plastic material with the fillers or reinforcement materials, in a reciprocating screw plasticizing and injection unit, by rotating a plasticizing and injection screw, which is disposed in a preplasticizing cylinder so that it can move rotationally and axially; b) expelling the plasticized mixture of plastic material and filler or reinforcement material by the axial movement of the plasticizing and injection screw, from the reciprocating screw plasticizing and injection unit, into a mixing element; c) homogenizing the mixture of plastic material and filler or reinforcement materials in the mixing element, by a mixer, which is disposed movably in the mixing element and which is driven by a mechanical drive; and d) expelling the homogenized mixture of plastic material and filler or reinforcement materials from the mixing element into an injection molding tool. The combination of a reciprocating screw unit and a “dynamic mixer” achieves a gentle processing especially of long-fiber additives.

摘要翻译： 本发明涉及一种用于注塑部件的方法和装置，其包括至少一种塑料材料和至少一种呈纤维状或粉状填料或增强材料形式的添加剂的混合物。 该方法包括以下步骤：a）通过旋转塑化和注射螺杆将塑料材料与填料或增强材料的混合物在往复式螺杆塑化和注射单元中塑化，该塑化和注射螺杆设置在预塑化气缸中，使得其 可以旋转和轴向移动; b）通过塑化和注塑螺杆的轴向移动，从往复式螺杆塑化和注塑单元排出塑料材料和填料或增强材料的塑化混合物，成为混合元件; c）通过混合器将塑料材料和填料或增强材料的混合物均质化，混合器可移动地设置在混合元件中并由机械驱动驱动; 以及d）将来自混合元件的均质化塑料材料和填料或增强材料的混合物排出到注塑模具中。 往复式螺杆单元和“动态混合器”的组合实现了特别是长纤维添加剂的温和加工。