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13 条记录 (耗时 0.022 秒)

    Method and apparatus for cooling extruded film tubes
    2.
    发明授权
    Method and apparatus for cooling extruded film tubes 失效
    用于冷却挤出薄膜管的方法和装置

    公开(公告)号：US5525277A

    公开(公告)日：1996-06-11

    申请号：US254401

    申请日：1994-06-03

    申请人： Daniel R. Joseph

    发明人： Daniel R. Joseph

    IPC分类号： B29C35/16 ,  B29C47/88 ,  B29C47/92 ,  B29C55/28 ,  G05D7/06

    CPC分类号： B29C47/8835 ,  B29C47/0026 ,  B29C47/92 ,  B29C55/28 ,  G05D5/03 ,  G05D7/0635 ,  B29C2035/1658 ,  B29C2947/92076 ,  B29C2947/92104 ,  B29C2947/92123 ,  B29C2947/92209 ,  B29C2947/92428 ,  B29C2947/92571 ,  B29C2947/926 ,  B29C2947/92619 ,  B29C2947/92647 ,  B29C2947/92923 ,  B29C2947/9298 ,  B29C47/34

    摘要： A method and apparatus for blown film extrusion is described. An annular die receives a molten material and extrudes a film tube. At least one cooling ring is positioned adjacent the annular die for passing an air stream along a particular surface of the film tube. A blower entrains and supplies air to the cooling ring. A flow sensor is positioned in an air flow path intermediate the at least one cooling ring and the blower. It provides a mass air flow signal which is a measure of air mass flow per unit time. An adjustable air flow attribute modifier is placed in communication with the air flow path and operates to selectively modify the air mass flow per time unit. A controller member is in communication with the flow sensor and the adjustable air flow attribute modifier, for receiving the mass air flow signal and for controlling the adjustable air flow attribute modifier to provide a preselected value of air flow in terms of air mass flow per unit time.

    摘要翻译： 描述了用于吹塑薄膜挤出的方法和装置。 环形模具接收熔融材料并挤出薄膜管。 至少一个冷却环邻近环形模具定位，以沿着薄膜管的特定表面通过空气流。 鼓风机夹带并向冷却环提供空气。 流量传感器位于至少一个冷却环和鼓风机中间的空气流动路径中。 它提供质量空气流量信号，其是每单位时间的空气质量流量的量度。 空气流量属性调节器可与空气流动通道相连通，并可操作以选择性地修改每时间单位的空气质量流量。 控制器构件与流量传感器和可调节空气流量属性修改器连通，用于接收质量空气流量信号并用于控制可调节气流属性修改器，以提供每单位空气质量流量的空气流量的预选值 时间。

    Method and apparatus for gauging and controlling circumference of extrusion-blown film
    3.
    发明授权
    Method and apparatus for gauging and controlling circumference of extrusion-blown film 失效
    用于测量和控制挤出吹塑薄膜周长的方法和装置

    公开(公告)号：US5104593A

    公开(公告)日：1992-04-14

    申请号：US496798

    申请日：1990-03-21

    申请人： Daniel R. Joseph

    发明人： Daniel R. Joseph

    IPC分类号： B29C47/00 ,  B29C47/92 ,  G05D5/03

    CPC分类号： B29C47/0026 ,  B29C47/92 ,  G05D5/03 ,  B29C2947/92076 ,  B29C2947/92123 ,  B29C2947/92209 ,  B29C2947/92428 ,  B29C2947/92571 ,  B29C2947/926 ,  B29C2947/92619 ,  B29C2947/92647 ,  B29C2947/92923 ,  B29C2947/9298 ,  B29C47/0057 ,  B29C47/0059 ,  B29C47/34

    摘要： In a blow film extrusion system in which film is extruded as a tube from an annular die and then pulled along a predetermined path, an apparatus is provided for gauging and controlling the circumference of the extruded film tube. At least one transducer, preferably ultrasonic, is mounted adjacent the extruded film tube for transmitting and receiving interrogating pulses along paths normal to the extruded film tube, and for producing a current position signal corresponding to the circumference of the extruded film tube. The current position signal is continuously compared with at least one previous position signal, preferably with a computer program resident in a controller memory. If at least one preselected condition is violated, the current position signal is disregarded in favor of an estimated position signal. The quantity of air within the extruded film tube is varied in response to either the current position signal or the estimated position signal to maintain the extruded film tube at a preselected circumference. The transducer may be mounted to an adjustable sizing cage, and is thus moveable inward, outward, upward, and downward relative to the extruded film tube as changes are made in its circumference or frostline position.

    摘要翻译： 在将薄膜从环形模头挤出成管并沿预定路径拉伸的吹塑薄膜挤出系统中，提供了一种用于测量和控制挤压薄膜管的周长的装置。 至少一个换能器，优选地是超声波，被安装在挤出的薄膜管附近，用于沿着垂直于挤出的薄膜管的路径传送和接收询问脉冲，并且用于产生对应于挤出的薄膜管的圆周的当前位置信号。 当前位置信号与至少一个先前的位置信号连续地进行比较，优选地与驻留在控制器存储器中的计算机程序进行比较。 如果违反了至少一个预选条件，则忽略当前位置信号以有利于估计的位置信号。 挤出薄膜管内的空气量响应于当前位置信号或估计位置信号而变化，以将挤出的薄膜管保持在预选圆周。 传感器可以安装到可调节的定尺寸保持架上，并且因此在其周长或霜冻位置进行改变时相对于挤出的薄膜管向内，向外，向上和向下移动。

    Method and apparatus for calibration of blown-film extrusion apparatus
    4.
    发明授权
    Method and apparatus for calibration of blown-film extrusion apparatus 有权

    公开(公告)号：US11446854B2

    公开(公告)日：2022-09-20

    申请号：US16715152

    申请日：2019-12-16

    申请人： Daniel R. Joseph

    发明人： Daniel R. Joseph

    IPC分类号： B29C48/92 ,  G05B19/042 ,  B29C48/10

    摘要： A method comprises the steps of continuously measuring, proximal a tube extrusion die, a diameter of tubing extruded by the die, to produce a plurality of die-measurement or layflat samples; and continuously measuring, downstream of the tube extrusion die and proximal an accumulation point of flattened tubing, a width of the flattened tubing, to produce a plurality of flat-width samples. A slope value is calculated over a selected interval of the layflat samples and the flat-width samples to determine the stability of the diameter of the tubing and the width of the flattened tubing. A y-intercept value is calculated over the selected interval of the layflat samples and the flat-width samples to determine a forecast trend of the diameter of the tubing and the width of the flattened tubing. When the slope values, y-intercept values, and variances are within selected parameters indicative of a stable operation of the tube extrusion die and the accumulation of flattened tubing, the tube extrusion die is calibrated to produce a selected width of flattened tubing.

    Method and apparatus for lay flat control in an extruded film production line
    6.
    发明授权
    Method and apparatus for lay flat control in an extruded film production line 有权
    挤出薄膜生产线中平面控制的方法和装置

    公开(公告)号：US06922608B2

    公开(公告)日：2005-07-26

    申请号：US10618917

    申请日：2003-07-14

    申请人： Daniel R. Joseph

    发明人： Daniel R. Joseph

    IPC分类号： B29C47/00 ,  B29C47/90 ,  B29C47/92 ,  H04N7/173

    CPC分类号： B29C47/92 ,  B29C47/0026 ,  B29C47/0057 ,  B29C47/0059 ,  B29C47/34 ,  B29C47/8835 ,  B29C47/903 ,  B29C2947/92123 ,  B29C2947/92209 ,  B29C2947/92295 ,  B29C2947/92514 ,  B29C2947/926 ,  B29C2947/92628 ,  B29C2947/92647 ,  B29C2947/92657 ,  B29C2947/92809 ,  B29C2947/92923

    摘要： An apparatus for producing an extruded film tube and supplying said tube to a collapsing and roller assembly includes a die for extruding a molten material in the form of a tube which is in a molten state below a frost line and in a solid state above the frost line. A blower system supplies and exhausts cooling air to and from an interior portion of the tube, and is regulated by a valve. At least two sensors are provided, one below the frost line for sensing the position of said tube, and one located proximate the tube in a position above said frost line. The upper sensor is used for sensing the position of the tube prior to collapsing and flattening it. A controller receives feedback signals from both sensors and controls operation of the valve.

    摘要翻译： 一种用于生产挤出薄膜管并将所述管供应到塌缩和辊组件的装置包括：用于挤出管状形式的熔融材料的模具，其处于处于霜冻线下方的熔融状态并且处于霜冻以上的固态 线。 鼓风机系统向管内部供应和排出冷却空气，并由阀调节。 提供至少两个传感器，一个在霜线下面，用于感测所述管的位置，一个位于管的上方位于霜冻线上方。 上部传感器用于在折叠和平坦化之前感测管的位置。 控制器从两个传感器接收反馈信号并控制阀的操作。

    Method and apparatus for cooling extruded film tubes
    8.
    发明授权
    Method and apparatus for cooling extruded film tubes 失效
    用于冷却挤出薄膜管的方法和装置

    公开(公告)号：US5891383A

    公开(公告)日：1999-04-06

    申请号：US658369

    申请日：1996-06-05

    申请人： Daniel R. Joseph

    发明人： Daniel R. Joseph

    IPC分类号： B29C47/88 ,  B29C47/92 ,  B29C55/28

    CPC分类号： B29C47/8835 ,  B29C47/0026 ,  B29C47/92 ,  B29C55/28 ,  G05D5/03 ,  G05D7/0635 ,  B29C2035/1658 ,  B29C2947/92076 ,  B29C2947/92104 ,  B29C2947/92123 ,  B29C2947/92209 ,  B29C2947/92285 ,  B29C2947/92295 ,  B29C2947/92428 ,  B29C2947/92571 ,  B29C2947/926 ,  B29C2947/92619 ,  B29C2947/92647 ,  B29C2947/9278 ,  B29C2947/92923 ,  B29C2947/9298 ,  B29C47/34

    摘要： The present invention is directed to a blown film extrusion apparatus in which film is extruded as a tube from an annular die and then pulled along a predetermined path. The improved blown film extrusion apparatus includes a system for gauging and controlling the surface of the extruded film tube, which includes a number of components which cooperate together. At least one transducer is provided and positioned adjacent the extruded film tube for transmitting interrogating pulses to, and receiving interrogating pulses from, the extruded film tube, and for producing a signal corresponding to a detected position of the extruded film tube. A control system is provided for substituting a filtered position signal derived from a dynamic filtering process in lieu of the detected position signal. An air flow controller is provided for varying a quantity of air within the extruded film tube in response to the control system for urging the extruded film tube to a desired position.

    摘要翻译： 本发明涉及一种吹塑薄膜挤出装置，其中薄膜从环形模头挤出成管，然后沿预定路径拉伸。 改进的吹塑薄膜挤出装置包括用于测量和控制挤出薄膜管的表面的系统，其包括多个配合在一起的部件。 至少有一个传感器被设置并邻近挤出的薄膜管定位，用于向挤出的薄膜管传送询问脉冲并接收询问脉冲，并产生对应于挤出的薄膜管的检测位置的信号。 提供了一种控制系统，用于代替来自动态滤波处理的滤波位置信号代替检测到的位置信号。 响应于用于将挤出的薄膜管推动到期望位置的控制系统，提供空气流量控制器，用于改变挤出薄膜管内的空气量。

    Method of and apparatus for gaging and controlling circumference of extrusion-blown film
    9.
    发明授权
    Method of and apparatus for gaging and controlling circumference of extrusion-blown film 失效
    吹塑薄膜的周长测量和控制方法和设备

    公开(公告)号：US5352393A

    公开(公告)日：1994-10-04

    申请号：US867762

    申请日：1992-04-13

    申请人： Daniel R. Joseph

    发明人： Daniel R. Joseph

    IPC分类号： B29C47/00 ,  B29C47/92 ,  G05D5/03 ,  B06B3/00 ,  G01N29/00

    CPC分类号： B29C47/34 ,  B29C47/0026 ,  B29C47/92 ,  G05D5/03 ,  B29C2947/92076 ,  B29C2947/92123 ,  B29C2947/92209 ,  B29C2947/92428 ,  B29C2947/92571 ,  B29C2947/926 ,  B29C2947/92619 ,  B29C2947/92647 ,  B29C2947/92923 ,  B29C2947/9298

    摘要： In a blown film extrusion system in which film is extruded as a tube from an annular die and then pulled along a predetermined path, an apparatus is provided for gauging and controlling the circumference of the extruded film tube. At least one transducer, preferably ultrasonic, is mounted adjacent the extruded film tube for transmitting and receiving interrogating pulses along paths normal to the extruded film tube, and for producing a current position signal corresponding to the circumference of the extruded film tube. The current position signal is continuously compared with at least one previous position signal, preferably with a computer program resident in a controller memory. If at least one preselected condition is violated, the current position signal is disregarded in favor of an estimated position signal. The quantity of air within the extruded film tube is varied in response to either the current position signal or the estimated position signal to maintain the extruded film tube at a preselected circumference.

    摘要翻译： 在将薄膜从环状模头挤出成管并沿预定路径拉伸的吹塑薄膜挤出系统中，设置有用于测量和控制挤压薄膜管的周长的装置。 至少一个换能器，优选地是超声波，被安装在挤出的薄膜管附近，用于沿着垂直于挤出的薄膜管的路径传送和接收询问脉冲，并且用于产生对应于挤出的薄膜管的圆周的当前位置信号。 当前位置信号与至少一个先前的位置信号连续地进行比较，优选地与驻留在控制器存储器中的计算机程序进行比较。 如果违反了至少一个预选条件，则忽略当前位置信号以有利于估计的位置信号。 挤出薄膜管内的空气量响应于当前位置信号或估计位置信号而变化，以将挤出的薄膜管保持在预选圆周。