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公开(公告)号:US4099897A
公开(公告)日:1978-07-11
申请号:US628625
申请日:1975-11-04
IPC分类号: B29C44/32 , B29C48/395 , B29D27/00 , B29G7/02
CPC分类号: B29C44/322 , B29C47/0014 , B29C47/38 , B29C47/0016
摘要: An extrusion apparatus and method for producing foamed resin coatings on a wire. A foaming agent and molten resin are poured into a supply portion of an extruding screw and cylinder apparatus. The screw in the supply portion is tapered in the down stream direction. The screw and cylinder apparatus portion adjacent to the supply portion is arranged to blend the resin and foaming agent and has a lower coefficient of extrusion than the supply portion. The metering portion of the screw and cylinder apparatus is adjacent and down stream of the blend portion and has a higher coefficient of extrusion than the blend portion.
摘要翻译: 一种用于在线材上生产泡沫树脂涂层的挤出设备和方法。 将发泡剂和熔融树脂倒入挤出螺杆和圆筒装置的供应部分中。 供应部分中的螺钉在下游方向上是锥形的。 与供给部相邻的螺杆和气缸装置部被配置为混合树脂和发泡剂,并且具有比供给部更低的挤出系数。 螺杆和气缸装置的计量部分与共混部分相邻和下游并且具有比混合部分更高的挤出系数。
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公开(公告)号:US5123789A
公开(公告)日:1992-06-23
申请号:US316952
申请日:1989-02-28
申请人: Tamio Ohtani , Yasuhiko Kanaya , Tuyoshi Yamaguchi
发明人: Tamio Ohtani , Yasuhiko Kanaya , Tuyoshi Yamaguchi
IPC分类号: B23Q3/00 , G05B19/401 , G05B19/416 , H05K1/02 , H05K3/00
CPC分类号: H05K3/0047 , B23Q3/002 , G05B19/4015 , G05B19/4166 , G05B2219/45035 , G05B2219/49237 , G05B2219/50133 , G05B2219/50136 , H05K1/0269 , H05K2203/0207 , Y10T408/03 , Y10T408/17 , Y10T408/175 , Y10T408/21 , Y10T408/5623
摘要: A method of and apparatus for effecting a machining operation, e.g. drilling, on a multi-layered printed circuit board utilizing a machining apparatus having a spindle for driving a tool. The spindle is movable in the axial direction of the tool and a pressure foot for pressing the printed circuit board during the machining is mounted on the spindle for relative movement with respect thereto. The method includes the steps of determining the position of the end of a tool with respect to the end of a pressure foot in the state before the pressure foot contacts the printed circuit board, setting the amount of relative movement between the pressure foot and the tool necessary for effecting the desired machining, on the basis of the position of the end of the tool and a predetermined set value of the machining depth; and effecting the machining on the printed circuit board by controlling the feed of the tool in conformity with the amount of relative movement.
摘要翻译: 一种用于进行加工操作的方法和装置,例如。 在使用具有用于驱动工具的主轴的加工装置的多层印刷电路板上钻孔。 主轴可沿着工具的轴向移动,并且用于在加工期间按压印刷电路板的压脚安装在主轴上以相对于其相对运动。 该方法包括以下步骤:在压脚与印刷电路板接触之前的状态下确定工具的端部相对于压脚的端部的位置,设定压脚和工具之间的相对运动量 基于刀具端部的位置和加工深度的预定设定值来实现所需加工所必需的; 并且通过根据相对移动量控制工具的进给来对印刷电路板进行加工。
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公开(公告)号:US5266878A
公开(公告)日:1993-11-30
申请号:US807821
申请日:1992-01-23
IPC分类号: G05B15/02 , G05B19/418 , G05B19/417
CPC分类号: G05B19/4181 , Y02P90/06
摘要: A main CPU unit and a plurality of CNC units provided on a one-to-one correspondence with machine tools, and the main CPU unit is connected with an external storage device and an input device. To modify the mode of machine tool control or machining data of work, a new system program is down-loaded through the RAM of the main CPU unit into the CPU for the CNC unit, and according to this new system program, the part program including machining data normally stored in the CPU for the CNC unit.
摘要翻译: PCT No.PCT / JP91 / 00687。 371日期1992年1月23日 102(e)日期1992年1月23日PCT提交1991年5月23日PCT公布。 公开号WO91 / 18336 日期:1991年11月28日。主CPU单元和与机床一一对应地设置的多个CNC单元,主CPU单元与外部存储装置和输入装置连接。 要修改机床控制模式或加工工作数据,新的系统程序通过主CPU单元的RAM下载到CNC单元的CPU中,根据新的系统程序,零件程序包括 加工数据正常存储在CNC单元的CPU中。
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