公开(公告)号：US4756682A

公开(公告)日：1988-07-12

申请号：US50939

申请日：1987-05-15

申请人： Francois F. Blaise

发明人： Francois F. Blaise

IPC分类号： B29C47/00 ,  B29C47/02 ,  B29C47/04 ,  B29C47/06 ,  B29C47/56

CPC分类号： B29C47/003 ,  B29C47/0023 ,  B29C47/025 ,  B29C47/04 ,  B29C47/065 ,  B29C47/266 ,  B29C47/56 ,  B29C47/0009

摘要： A machine is especially adapted for coating a profile insert and can be distinguished by the fact that it consists of several extruder screws (1, 2, 3) incorporated into a single block (4), each fed from a hopper opening, through a corresponding orifice (1', 2', 3'), into a union head (5) having a channel (6, 7, 8) for each material being extruded and hollowed out axially for an insert to pass through, this union head (5) feeding, via a distributor ring (9) perforated and grooved concentrically according to the channels in this head, an extrusion chamber (10) with controlled streams, carrying at its exit an extrusion head (11) with a reserved passage for the insert, the head consisting of a frustoconical liner (12) housing, between its entry and its exit, an externally ribbed diffuser (13), in which each groove between two ribs corresponds to an orifice of the extrusion chamber (10), an externally ribbed and grooved frustoconical core (13a) such that its ribs and grooves corresponds to those of the diffuser (13), a die (13b) hollowed out internally with conicity corresponding to the conicity of the radial ribs and grooves of the core (13a), this die comprising a passage cut out to the shape of the desired profile.

摘要翻译： 一种机器特别适于涂覆轮廓插入物，并且可以通过以下事实来区分：其由结合到单个块（4）中的几个挤出机螺钉（1,2,3）组成，每个挤出机螺钉（1）从料斗开口通过相应的 孔（1'，2'，3'）插入到具有用于每种材料的通道（6,7,8）的联接头部（5）中，所述通道（6,7,8）被轴向地挤压和挖空以使插入物通过，该联合头部 ）通过根据该头部中的通道同心地打开和开槽的分配器环（9），具有受控流的挤出室（10），在其出口处承载具有用于插入件的预留通道的挤出头（11） 所述头部由在其入口和出口之间的截头圆锥形衬套（12）构成，外部带肋的扩散器（13），其中两个肋之间的每个凹槽对应于挤出室（10）的孔口，外部带肋和 开槽的截头圆锥形芯（13a），使其肋和槽对应 扩散器（13）的那些，在内部具有锥形的模具（13b），其对应于芯部（13a）的径向肋和凹槽的锥度，该模具包括切割成所需轮廓形状的通道。