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1. 发明授权

US06702563B2 Extruder die head 有权
标题翻译：挤出机模头
公开(公告)号：US06702563B2
公开(公告)日：2004-03-09
申请号：US09577616
申请日：2000-05-25
申请人： Klemens Sensen , Juergen Linkies , Dieter Aus Dem Moore , Reinmut Rewwer , Frank Bosse
发明人： Klemens Sensen , Juergen Linkies , Dieter Aus Dem Moore , Reinmut Rewwer , Frank Bosse
IPC分类号： B29C4706
CPC分类号： B29C47/0023 , B29C47/0026 , B29C47/065 , B29C47/20 , B29C47/263
摘要： An extruder die head for producing multilayered tubes made of thermoplastic material exhibits a central annular channel, which is provided with an annular outlet die. Into the outer limiting wall of the channel empty annular slits, which feed a polymer melt and which constitute the smaller diameter openings of truncated channels, formed between the internal and external shells of stacked, conical insert members. To reduce the axial length of the extruder die head, the annular slits, feeding the polymer melts, also empty into the inside wall of the central annular channel. The annular slits are the smaller diameter openings of truncated channels, formed between the internal and external shells of stacked conical internal insert members.
摘要翻译：用于制造由热塑性材料制成的多层管的挤出机模头具有中心环形通道，其设置有环形出口模头。在通道空的环形狭缝的外部限定壁中，其形成在堆叠的圆锥形插入件的内部和外部壳体之间的空的环形狭缝，其供给聚合物熔体并构成截面通道的较小直径的开口。为了减小挤出机模头的轴向长度，馈送聚合物的环形狭缝熔化也会空入中心环形通道的内壁。环形狭缝是在层叠的锥形内部插入件的内外壳之间形成的截面通道的较小直径的开口。

2. 发明授权

US06565347B1 Extruder die head 有权
标题翻译：挤出机模头
公开(公告)号：US06565347B1
公开(公告)日：2003-05-20
申请号：US09580569
申请日：2000-05-30
申请人： Juergen Linkies , Hans-Udo Beckmann , Dieter Aus Dem Moore
发明人： Juergen Linkies , Hans-Udo Beckmann , Dieter Aus Dem Moore
IPC分类号： B29C4720
CPC分类号： B29C47/0026 , B29C47/0808 , B29C47/20 , B29C47/705
摘要： An extruder die head comprises an internal cylindrical mandrel and a shell, which encloses said mandrel concentrically. Between said mandrel and shell an annular channel is formed that empties into the die slit. A polymer melt is fed through a line to the annular channel. To prevent the polymer melt in the area of the start of the annular channel from penetrating into a slit that forms between the mandrel and the shell due to heat expansion, there is between both mandrel and shell a ring with such a coefficient of thermal expansion that when heated up due to the polymer melt said ring seals the slit between the shell and the mandrel.
摘要翻译：挤出机模头包括内部圆柱形心轴和外壳，其同心地包围所述心轴。在所述心轴和壳体之间形成一个环形通道，其排入模具狭缝。聚合物熔体通过管线被供给到环形通道。为了防止环形通道开始区域中的聚合物熔体渗透到由于热膨胀而在心轴和壳体之间形成的狭缝中，在心轴和壳体之间存在这样的热膨胀系数的环，即具有这样的热膨胀系数的环当由于聚合物熔体而加热时，所述环密封壳体和心轴之间的狭缝。

3. 发明授权

US06474973B2 Extruder die head 有权
标题翻译：挤出机模头
公开(公告)号：US06474973B2
公开(公告)日：2002-11-05
申请号：US09759156
申请日：2001-01-16
申请人： Hans-Udo Beckmann , Juergen Linkies , Dieter Aus Dem Moore
发明人： Hans-Udo Beckmann , Juergen Linkies , Dieter Aus Dem Moore
IPC分类号： B29C4720
CPC分类号： B29C47/0026 , B29C47/0808 , B29C47/20 , B29C47/705
摘要： An extruder die head, preferably a blown film head, has an internal cylindrical mandrel and a cylindrical jacket, which envelops concentrically the mandrel. Between the mandrel and jacket an annular channel is formed that empties into a die slit. At least one melt-supplying line empties into the annular channel in the area opposite the die slit. To avoid slits between the central mandrel and the jacket, enveloping the mandrel, where the polymer melt can accumulate and deposit, the mandrel is made as one piece with a flange-like foot and is provided in the area, adjacent to the foot, with at least one borehole, which feeds in the melt. On the mandrel adjacent to the foot is shrunk a ring, which seals the slit between both the mandrel and jacket. The cylindrical jacket is mounted above and connected sealingly to the shrunk-on ring to form the annular channel.
摘要翻译：挤出机模头，优选吹塑薄膜头，具有内部圆柱形心轴和圆柱形护套，其同心地包围心轴。在心轴和护套之间形成一个环形通道，其被排入模具狭缝。至少一个熔体供给管线在与模具狭缝相对的区域中的环形通道中排空。为了避免中心心轴和护套之间的狭缝，包围心轴，其中聚合物熔体可以积聚和沉积，心轴与法兰状脚形成一体并且设置在与脚相邻的区域中，至少一个钻孔，其在熔体中进料。在靠近脚的心轴上收缩一个环，该环密封了心轴和护套之间的狭缝。圆柱形套管安装在密封环上并形成环形通道。

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