公开(公告)号：US4911868A

公开(公告)日：1990-03-27

申请号：US276267

申请日：1988-11-25

Applicant: Hans Reifenhauser ,  Wilhelm Predohl

Inventor： Hans Reifenhauser ,  Wilhelm Predohl

IPC: B29C47/16 ,  B29C47/92 ,  B29L7/00

CPC classification number: B29C47/92 ,  B29C47/165 ,  B29C2947/92152 ,  B29C2947/92428 ,  B29C2947/92647 ,  B29C2947/92904 ,  B29C47/0021

Abstract: The process for making a thermoplastic foil involves the use of a wide-outlet or long-slit die which has at least one outlet-gap-defining adjustable die lip, an opposing gap-bounding lip and a group of piezotranslators distributed over the length of the outlet-gap-defining adjustable die lip, each of which is part of a control loop, acts as a positioning member and is associated with an individual section of an outlet-gap-defining adjustable die lip. At least one actual value of the foil thickness of the thermoplastic foil formed is measured with a measuring device and is fed to a controlling processor. Each of the piezotranslators is controlled by a controlling processor with a controlling variable. In the controlling processor a distribution control variable which is generated by a thickness variation or error is generated by a control variable deviating from a setpoint value and the distribution control variable is fed to individual piezotranslators from the controlling processor according to a distribution function which distributes the thickness errors over the length of the adjustable outlet-gap-defining adjustable die lip.

Abstract translation: 制造热塑性箔的方法涉及使用宽出口或长缝模，其具有至少一个出口间隙限定的可调模唇，相对的间隙边界唇和一组压电传输器，分布在长度为 出口间隙限定的可调节模唇，每个都是控制环的一部分，用作定位构件，并与出口间隙限定的可调模唇的单独部分相关联。 用测量装置测量形成的热塑性箔的箔厚度的至少一个实际值，并将其馈送到控制处理器。 每个压电传感器由具有控制变量的控制处理器控制。 在控制处理器中，通过偏离设定点值的控制变量产生由厚度变化或误差产生的分布控制变量，并且根据分配函数将分配控制变量从控制处理器馈送到单独的压电传感器， 在可调节出口间隙限定的可调模唇的长度上的厚度误差。

公开(公告)号：US4695236A

公开(公告)日：1987-09-22

申请号：US701579

申请日：1985-02-14

Applicant: Wilhelm Predohl ,  Heinz Beisemann ,  Paul Reitemeyer

Inventor： Wilhelm Predohl ,  Heinz Beisemann ,  Paul Reitemeyer

IPC: B29C47/02 ,  B29C47/04 ,  B29C47/06 ,  B29C47/14 ,  B29C47/16 ,  B29C47/58 ,  B29C47/70 ,  B29L7/00 ,  B29L9/00 ,  B29C47/92

CPC classification number: B29C47/56 ,  B29C47/0021 ,  B29C47/065 ,  B29C47/0816 ,  B29C47/145 ,  B29C47/16 ,  B29C47/0019

Abstract: The apparatus for continuous extrusion of a plastic laminate has at least two extrusion screw presses, an accumulator block, a transition unit, and an output die, from which the plastic laminate product is extruded. The accumulator block has a combining channel or canal therein which is fed by the extrusion screw presses. This combining canal is connected by way of the transition unit to the output die. The combining canal preferably has a rectangular cross section with rounded corners and at its upstream end is directly connected to a first extrusion screw press by way of a connecting canal coaxial with the combining canal. Downstreamwards below the connecting canal is found at least one input metering slot connected to the combining canal at one end and through a connecting apparatus at its other end to an additional extrusion screw press, this input metering slot lying between an input plate and an adjusting bar guided in an adjusting bar recess. The input metering slot extends over a rectangular side of the rectangular cross section combining canal, is directed slantingly downstreamwards, and opens into the combining canal. The adjusting bar has an adjustable beveled portion fitting into the combining canal and is adjustable perpendicular to the input metering slot in the adjusting bar recess so as to meter the flow of thermoplastic material from the additional extrusion screw press.

Abstract translation: 用于塑料层压材料的连续挤出的装置具有至少两个挤出螺杆挤压机，蓄能器块，过渡单元和输出模具，挤出塑料层压制品。 蓄能器块具有在其中的组合通道或管道，其由挤压螺旋压力机供给。 该组合管通过过渡单元连接到输出模具。 组合管优选地具有带圆角的矩形横截面，并且其上游端通过与组合管同轴的连接槽直接连接到第一挤压螺旋压力机。 在连接通道下方的下游，发现至少一个输入计量槽在一端连接到组合管，并且在另一端通过连接装置连接到附加的挤出螺旋压力机，该输入计量槽位于输入板和调节杆之间 在调节杆凹槽中引导。 输入计量槽在矩形横截面组合管的矩形侧上延伸，被向下倾斜地定向并且通向组合管。 调节杆具有可调节的倾斜部分，其配合到组合管中并且可垂直于调节杆凹槽中的输入计量槽调节，以便计量来自附加挤出螺旋压力机的热塑性材料的流动。

公开(公告)号：US5178806A

公开(公告)日：1993-01-12

申请号：US752695

申请日：1991-09-04

Applicant: Wilhelm Predohl

Inventor： Wilhelm Predohl

IPC: B29C47/34 ,  B29C47/92

CPC classification number: B29C47/92 ,  B29C47/0026 ,  B29C47/34 ,  B29C2947/92152 ,  B29C2947/92428 ,  B29C2947/92438 ,  B29C2947/92647 ,  B29C2947/92923 ,  B29C2947/92933

Abstract: A process for the production of a plastic foil of thermoplastic material as well as for winding this plastic foil into a coil. The produced plastic foil has systematic thickness errors with plus thickness errors and minus thickness errors. The coil is practically free of thickness errors summed during winding. In order to achieve this, the thickness-error profile of the produced plastic foil with its systematic plus thickness errors and/or minus thickness errors is measured prior to the winding of the coil. A number n of layers of the plastic foil produced with the systematic plus thickness errors and/or minus thickness errors is wound up to a coil. After that, approximately a number n of layers of the plastic foil with the inverse thickness-error profile is wound on the coil. This is periodically repeated, n layers of plastic foil with the thickness-error profile alternating with approximately n layers with inverse thickness-error profile, until in the end the adequately cylindrical coil is produced.

Abstract translation: PCT No.PCT / DE91 / 00007 Sec。 371日期1991年9月4日 102（e）1991年9月4日PCT PCT 1991年1月9日PCT。 公开号WO91 / 10553 日期1991年7月25日。一种用于生产热塑性材料的塑料箔以及将该塑料箔卷绕成线圈的方法。 所生产的塑料箔具有厚度误差和厚度误差的系统厚度误差。 线圈实际上没有在卷绕期间相加的厚度误差。 为了实现这一点，在卷绕线圈之前测量所生产的塑料箔的厚度 - 误差分布，其系统加厚度误差和/或负厚度误差。 产生具有系统加厚度误差和/或负厚度误差的数个n层的塑料箔卷绕到线圈上。 之后，将大约数量的具有反厚度 - 误差分布的塑料箔层数缠绕在线圈上。 这是周期性重复的，n层塑料箔，其厚度误差轮廓与大约n层交替，具有相反的厚度 - 误差轮廓，直到最后产生适当的圆柱形线圈。