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公开(公告)号：US5414617A
公开(公告)日：1995-05-09
申请号：US125112
申请日：1993-09-21
CPC分类号： B26D7/018 , Y10T83/748
摘要： A scheme for controlling the vacuum holddown in a cutter table of the type having a conveyorized support surface comprised of a plurality of bristle members which create a permeable bed through which a vacuum is communicated employs separate zone regions on the vacuum bed which are controllably energized and de-energized in response to command signals generated by a controller in response to cutter head movement which anticipates the position of the knife prior to its arrival at a given zone in order that material set up in reaction time in the valve system is allotting for.
摘要翻译： 用于控制具有传送带支撑表面的类型的切割台中的真空压紧的方案，所述传送带支撑表面包括多个刷毛构件，所述多个刷毛构件形成透气床，真空通过所述可渗透床通过真空床中的可分离的区域， 响应于控制器响应于刀头运动而产生的命令信号而断电，该刀头运动预期刀在其到达给定区域之前的位置，以便在阀系统中的反应时间内设置的材料被分配。
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2.发明授权
公开(公告)号：US5418711A
公开(公告)日：1995-05-23
申请号：US124926
申请日：1993-09-21
申请人： Robert Pomerleau , Zdenek Zeman , Roy McDougall , Joseph Vivirito
发明人： Robert Pomerleau , Zdenek Zeman , Roy McDougall , Joseph Vivirito
摘要： An expert system containing a built-in application knowledge is used with a controllable cutting system to automatically seek an optimal feed rate during cutting in response to various of a number of possible changing system cutting parameters wherein a programmable controller defines and specifies a preset configuration file defining the specific cutting system control parameters for directing the operation of the cutting system in accordance with a contour defining a path be followed by a cutter carried by the cutting system and which cutter is moved in an X, Y and C coordinate space across the cutting surface of the cutting system. The X, Y and C axes motors are driven with a commanded current to move the cutter with a velocity defined in the configuration file. The cutting force developed by the cutter is determined at predetermined portions of the contour to determine the toughness of the spread and the actual cutting force is compared to the optimal cutting force with the feed rate being adjusted to increase when the actual force is below the expected force and decrease when the actual force is above the expected force and to shut down the cutting system to rebuilt the contours when the actual force exceeds the expected force by a predetermined magnitude. The feed rate is computed for the contour taking into account information concerning the toughness of the material being cut, the sharpened data, the vacuum level, the knife motor current and the knife velocity.
摘要翻译： 包含内置应用知识的专家系统与可控切割系统一起使用，以响应于各种可能的改变系统切割参数自动寻找切割期间的最佳进给速率，其中可编程控制器定义并指定预设配置文件 定义特定的切割系统控制参数，用于根据轮廓来定义切割系统的操作，该轮廓限定由切割系统承载的切割器所遵循的路径，并且哪个切割器在X，Y和C坐标空间中跨越切割 切割系统的表面。 X，Y和C轴电机用指令电流驱动，以配置文件中定义的速度移动刀具。 在轮廓的预定部分确定由切割器产生的切割力，以确定展开的韧性，并且将实际切割力与最佳切割力进行比较，并且当实际力低于预期时，进给速率被调整为增加 当实际力超过预期的力并且当实际力超过预期的力预定的大小时关闭切割系统来重建轮廓，力和减小。 考虑到关于被切割材料的韧性，磨削数据，真空度，刀马达电流和刀速度的信息，计算轮廓的进给速率。
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