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1. 发明授权

US5246644A Method for characterizing the performance of an injection molding process 失效
标题翻译：表征注射成型工艺性能的方法
公开(公告)号：US5246644A
公开(公告)日：1993-09-21
申请号：US864828
申请日：1992-04-07
申请人： James J. Wenskus, Jr. , Michael W. Dupin
发明人： James J. Wenskus, Jr. , Michael W. Dupin
IPC分类号： B29C45/76
CPC分类号： B29C45/76 , G05B2219/32188 , Y02P90/22
摘要： The critical dimensions of product samples made during a standard certification procedure for an injection molding process are measured and a loss factor value is computed for each such dimension. Using statistical techniques, the largest loss factor value is partitioned into percentages of loss contributed by a predetermined set of loss elements. The loss element contributing the largest percentage is corrected so as to improve the quality of the process and the product. The method provides a way of determining what kinds of process corrections will most effectively improve product and process quality.

2. 发明授权

US5238380A Apparatus for precision volumetric control of a moldable material 失效
标题翻译：用于可模制材料的精密体积控制的装置
公开(公告)号：US5238380A
公开(公告)日：1993-08-24
申请号：US774601
申请日：1991-10-10
申请人： James J. Wenskus, Jr. , Alan B. Miller
发明人： James J. Wenskus, Jr. , Alan B. Miller
IPC分类号： B29C45/77 , B29C45/80
CPC分类号： B29C45/77 , B29C45/80
摘要： An injection molding machine control device where mold element separation distance is measured and integrated as a function of time while moldable material is being introduced in the mold cavity between the mold elements. When the integral value reaches a preselected value, the mold injection pressure is changed and the moldable material is allowed to cure within the cavity.
摘要翻译：一种注射成型机控制装置，其中模具元件分离距离随着时间的推移而被测量和集成，而可模塑材料被引入模具元件之间的模腔中。当积分值达到预选值时，改变模具注射压力，并使模制材料在腔内固化。

3. 发明授权

US4767579A Method of precision volumetric control of a moldable material in an injection molding process 失效
标题翻译：注射成型工艺中可模制材料的精密体积控制方法
公开(公告)号：US4767579A
公开(公告)日：1988-08-30
申请号：US115675
申请日：1987-11-02
申请人： Frederick J. Buja , Alan B. Miller , William H. Sherwood , James J. Wenskus, Jr.
发明人： Frederick J. Buja , Alan B. Miller , William H. Sherwood , James J. Wenskus, Jr.
IPC分类号： B29C45/77 , B29C45/80 , B29C45/57
CPC分类号： B29C45/77 , B29C45/80
摘要： A method of operating an injection molding machine having a pair of separable mold elements forming a mold cavity therebetween with means for opening and closing the mold elements with means for introducing a moldable material into the mold cavity at a first pressure and for exerting a second pressure on the moldable material as it cures in the cavity. The method controls the molded product and comprises the steps of closing the mold elements and introducing a moldable material into the mold cavity. The separation of the mold elements is measured during the injection of the moldable material and a predetermined separation of the mold elements is detected. Upon detecting the predetermined separation the pressure is changed from the first pressure to the second pressure and the separation of the mold elements is continued. Measurement of mold element separation is continued and the cessation of the increase in the separation of the mold elements is detected. A determination is made whether or not the cessation occurs within a predetermined separation window. If the cessation is not within the window a signal is generated to indicate that the cycle has exceeded the product limit. If the cessation is within the window then the cycle is continued and the second pressure is maintained until the moldable material has cured. The mold is then opened.
摘要翻译：一种操作注射成型机的方法，所述注射成型机具有在其间形成模腔的一对可分离模具元件，其间具有用于打开和关闭模具元件的装置，所述装置用于在第一压力下将可模制材料引入模腔中并施加第二压力在可塑性材料上固化在空腔中。该方法控制模制产品，并且包括关闭模具元件并将可模制材料引入模腔中的步骤。在注射可模制材料期间测量模具元件的分离，并且检测到模具元件的预定分离。在检测到预定分离时，压力从第一压力改变到第二压力，并且继续分离模具元件。继续测量模具元件分离，并检测模具元件分离增加的停止。确定在预定分离窗口内是否发生停止。如果停止不在窗口内，则会产生一个信号以指示该周期已超过产品限制。如果停止在窗口内，则继续循环，并保持第二压力，直到可模制材料固化。然后打开模具。

4. 发明授权

US4767300A Apparatus for precision volumetric control of a moldable material in an injection molding process 失效
标题翻译：用于在注射成型工艺中对可模制材料进行精密体积控制的装置
公开(公告)号：US4767300A
公开(公告)日：1988-08-30
申请号：US115676
申请日：1987-11-02
申请人： Frederick J. Buja , Alan B. Miller , William H. Sherwood , James J. Wenskus, Jr.
发明人： Frederick J. Buja , Alan B. Miller , William H. Sherwood , James J. Wenskus, Jr.
IPC分类号： B29C45/77 , B29C45/80
CPC分类号： B29C45/80 , B29C45/77
摘要： A molding machine having a pair of separable mold elements forming a mold cavity therebetween is arranged for separation along a part-line. Means is provided for controlling the molded product which comprises means for measuring the separation of the mold elements resulting from the introduction of the moldable material into the mold cavity. Means is provided for detecting a predetermined separation of the mold elements, and means is provided for changing the pressure from the first pressure to the second pressure in response to the detection. The separation measuring means is arranged to measure the separation of the mold elements following changing the pressure. Means is provided for sensing when the separation of the mold elements stops increasing and for determining whether the cessation occurs within a predetermined cessation window. Means is provided to generate a signal if the cessation is not within the window to indicate that the cycle has exceeded the product limit. If the cessation is within the window, the second pressure is maintained until the material has cured.
摘要翻译：具有在其间形成模腔的一对可分离模具元件的成型机被布置成沿着一部分线分离。提供了用于控制模制产品的装置，其包括用于测量由于将可模制材料引入模腔而导致的模具元件的分离的装置。提供了用于检测模具元件的预定分离的装置，并且提供了用于响应于检测而将压力从第一压力改变到第二压力的装置。分离测量装置被布置成在改变压力之后测量模具元件的分离。提供了用于当模具元件的分离停止增加以及用于确定在预定的停止窗口内是否发生停止时的感测装置。提供了如果停止不在窗口内以指示循环已经超过产品限制的方式来产生信号。如果停止在窗内，则保持第二压力直到材料固化。

5. 发明授权

US5200126A Method and apparatus for monitoring the stability of the injection molding process by measurement of screw return time 失效
标题翻译：用于通过测量螺杆返回时间来监测注射成型过程的稳定性的方法和装置
公开(公告)号：US5200126A
公开(公告)日：1993-04-06
申请号：US619783
申请日：1990-11-29
申请人： James J. Wenskus, Jr. , Alan B. Miller
发明人： James J. Wenskus, Jr. , Alan B. Miller
IPC分类号： B29C45/76
CPC分类号： B29C45/76
摘要： A method and an apparatus for monitoring the process stability of an injection molding machine having a reciprocating screw engaged in the plasticating of a moldable material in preparation to its being introduced into the mold cavity. The invention involves the measurement of the duration of the operation of the screw engaged in the plasticating of the moldable material and includes the analysis of this duration over a period of time thus providing the supervisor with the necessary information to determine whether the machine/process is meeting or deviating from the desired operating requirements.
摘要翻译：一种用于监测具有往复式螺杆的注射成型机的工艺稳定性的方法和装置，所述往复式螺杆与可模制材料的塑化接合，以准备将其引入模腔中。本发明涉及测量接合在可模制材料的塑化中的螺钉的操作持续时间，并且包括在一段时间内对该持续时间的分析，从而向主管提供必要的信息以确定机器/过程是否是满足或偏离所需的操作要求。

6. 发明授权

US5063008A Method for precision volumetric control of a moldable material in an injection molding process 失效
标题翻译：注塑成型过程中可模制材料的精密体积控制方法
公开(公告)号：US5063008A
公开(公告)日：1991-11-05
申请号：US585538
申请日：1990-09-21
申请人： James J. Wenskus, Jr. , Alan B. Miller
发明人： James J. Wenskus, Jr. , Alan B. Miller
IPC分类号： B29C45/77 , B29C45/80
CPC分类号： B29C45/80 , B29C45/77
摘要： An improved technique for use with a molding apparatus having a pair of separable mold elements and forming a mold cavity therebetween which includes a means for opening and closing the mold elements and a means for introducing a moldable material into the mold cavity at a first pressure and for exerting a second pressure on the moldable material as it cures in the cavity has been developed. The technique involves measuring the separating distance of the mold elements while the moldable material is being introduced into the cavity and integrating the separation distance as a function of time. When the integral value reaches a preselected value, the mold injection pressure is changed and the moldable material is allowed to cure within the cavity.
摘要翻译：一种用于具有一对可分离的模具元件并在其间形成模腔的模制设备的改进技术，其包括用于打开和关闭模具元件的装置和用于在第一压力下将可模制材料引入模腔中的装置，以及在可模制材料上施加第二压力，因为其在空腔中固化已经开发出来。该技术涉及测量模具元件的分离距离，同时将可塑性材料引入空腔中并将分离距离作为时间的函数进行积分。当积分值达到预选值时，改变模具注射压力，并使模制材料在腔内固化。

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