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公开(公告)号：US07811073B2
公开(公告)日：2010-10-12
申请号：US11673945
申请日：2007-02-12
IPC分类号： B29C47/06
CPC分类号： B29C47/705 , B29C47/0026 , B29C47/0057 , B29C47/065 , B29C47/268 , B29C2791/007 , B29C2947/92647 , B29L2023/001
摘要： The invention relates to a blow head for producing blown tubular films from thermoplastic materials. Films produced by conventional blow heads often have dull strips or wavy areas, the so-called spiral strips. The aim of the invention is to avoid these negative film properties. For this purpose, the blow head comprises a plurality of annular gap-shaped melt channels arranged concentrically around the center axis of the blow head, the spiral distributor of the inner melt channel being arranged on the inner limiting wall in relation to the center axis of the blow head and the spiral distributor of the outer melt channel being arranged on the outer limiting wall in relation to the center axis of the blow head.
摘要翻译： 本发明涉及一种用于从热塑性材料生产吹塑管状薄膜的吹头。 由常规吹塑头生产的薄膜通常具有钝的条带或波浪形区域，即所谓的螺旋条带。 本发明的目的是避免这些负片性质。 为此目的，吹头包括围绕吹头的中心轴线同心地布置的多个环形间隙形熔体通道，内熔体通道的螺旋分配器相对于中心轴线设置在内限制壁上 外熔体通道的吹头和螺旋分配器相对于吹头的中心轴线布置在外限制壁上。
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公开(公告)号：US20070172536A1
公开(公告)日：2007-07-26
申请号：US11673945
申请日：2007-02-12
IPC分类号： B29C47/12
CPC分类号： B29C47/705 , B29C47/0026 , B29C47/0057 , B29C47/065 , B29C47/268 , B29C2791/007 , B29C2947/92647 , B29L2023/001
摘要： The invention relates to a blow head for producing blown tubular films from thermoplastic materials. Films produced by conventional blow heads often have dull strips or wavy areas, the so-called spiral strips. The aim of the invention is to avoid these negative film properties. For this purpose, the blow head comprises a plurality of annular gap-shaped melt channels arranged concentrically around the center axis of the blow head, the spiral distributor of the inner melt channel being arranged on the inner limiting wall in relation to the center axis of the blow head and the spiral distributor of the outer melt channel being arranged on the outer limiting wall in relation to the center axis of the blow head.
摘要翻译： 本发明涉及一种用于从热塑性材料生产吹塑管状薄膜的吹头。 由常规吹塑头生产的薄膜通常具有钝的条带或波浪形区域，即所谓的螺旋条带。 本发明的目的是避免这些负片性质。 为此目的，吹头包括围绕吹头的中心轴线同心地布置的多个环形间隙形熔体通道，内熔体通道的螺旋分配器相对于中心轴线设置在内限制壁上 外熔体通道的吹头和螺旋分配器相对于吹头的中心轴线布置在外限制壁上。
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公开(公告)号：US4836744A
公开(公告)日：1989-06-06
申请号：US199168
申请日：1988-05-26
申请人： Veit-Holger Karl , Franz Mahler , Josef Greisel
发明人： Veit-Holger Karl , Franz Mahler , Josef Greisel
CPC分类号： B65H23/32 , B29C47/34 , B65H23/038 , B29C47/0026 , B29C47/0057 , B29C47/0059 , B65H2404/15212
摘要： A take-away device for a flattened tubing foil forming machine having an improved foil edge position control. The take-away device for tubing foil is formed by an extruder with a tubing blow head carrying out a blowing process. The tubing foil is flattened between a pair of squeeze rollers, which pair of rollers can reversingly turn about a vertical axis of rotation. At least two turning rods are disposed following the squeeze rollers. The turning rods are pivotable about at least one vertical axis, and have, if necessary, at least one deflecting rod. The rods are pivoted by a frame member about a horizontal axis of rotation. A winding-up device receives the flattened tubing foil from the turning rod. A measuring instrument is disposed between the final turning rod from which the tubing foil is guided to the wind-up device, and the wind-up device. The measuring instrument determines the flow position of the edge of the tubing foil and, when the flow position of the edge deviates from a normal flow position, produces a measurement signal which is dependent on the deviation. The signal is conducted to a control means which converts the measurement signal into a control signal. A frame member supporting at least one rod is connected to a servomotor for receiving the control signal for turning the frame member about a pivot having a vertical axis of rotation, in response to the control signal.
摘要翻译： 用于扁平管状箔成形机的取出装置具有改进的箔边缘位置控制。 用于管状箔片的取出装置由具有吹塑头的挤出机形成，该吹塑头进行吹塑过程。 管箔在一对挤压辊之间变平，所述一对辊可以围绕垂直旋转轴线反向旋转。 在挤压辊之后设置至少两个转向杆。 所述转动杆可围绕至少一个垂直轴线枢转，并且如有必要，具有至少一个偏转杆。 杆围绕水平旋转轴线由框架构件枢转。 卷绕装置从转动杆接收扁平的管箔。 测量仪器设置在油管箔被引导到卷绕装置的最终转动杆和卷绕装置之间。 测量仪器确定管状箔片的边缘的流动位置，并且当边缘的流动位置偏离正常流动位置时，产生取决于偏差的测量信号。 该信号被传送到将测量信号转换成控制信号的控制装置。 支撑至少一个杆的框架构件连接到伺服电机，用于接收用于响应于控制信号而绕着具有垂直旋转轴线的枢轴转动框架构件的控制信号。
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公开(公告)号：US5354190A
公开(公告)日：1994-10-11
申请号：US8589
申请日：1993-01-25
CPC分类号： B29C47/883 , B29C47/0026 , B29C47/8835 , B29K2023/065
摘要： In order to make the thickness and strength values uniform in an extruded foil tubing made of high density polyethylene (HDPE), in the form of a long neck, an air nozzle ring is provided at the level of the end of the long neck in addition to an outer blow ring surrounding the ring nozzle of the blow head. The rate of air flow through the nozzles of the air nozzle ring is controlled dependent on a rotating measuring device for measuring the thickness of the foil which is located above the expansion portion of the foil tubing. The cooling effect of the outer blow ring is preferably twenty times greater than that of the air nozzle ring. To stabilize the foil bubble, an inner pin is provided at the level of the end of the long neck.
摘要翻译： 为了使厚度和强度值在由长颈部形式的高密度聚乙烯（HDPE）制成的挤出箔管中均匀，在长颈部的端部的水平处还设置有空气喷嘴环 到围绕吹头的环形喷嘴的外吹环。 根据用于测量位于箔管的膨胀部分上方的箔的厚度的旋转测量装置来控制通过空气喷嘴环的喷嘴的空气流量。 外吹环的冷却效果优选为空气喷嘴环的冷却效果的20倍。 为了稳定箔泡沫，在长颈部的端部的水平处设置有内销。
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