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    Manufacture of tubular elements for ink jet printers
    7.
    发明公开
    Manufacture of tubular elements for ink jet printers 无效
    Herstellung von rohrformigen ElementenfürTintenstrahlschreiber。

    公开(公告)号：EP0116018A1

    公开(公告)日：1984-08-15

    申请号：EP84830016.6

    申请日：1984-01-24

    申请人： Ing. C. Olivetti & C., S.p.A.

    发明人： Conta, Renato ,  Rocchi, Remo ,  Scardovi, Alessandro

    IPC分类号： C03B23/11 ,  C03B23/04 ,  B41J3/04

    CPC分类号： B41J2/1618 ,  B41J2/1632 ,  B41J2/1646 ,  C03B23/047 ,  C03B23/0473 ,  C03B23/051 ,  C03B23/11 ,  C03B23/114

    摘要： A method for the manufacture of tubular elements (15) of substantially transparent material entails the progressive reduction of the diameter of the element while its internal diameter is measured continuously and the stopping of this reduction when the diameter reaches a predetermined measurement. In order to form a glass tube for an ink-jet printer the reduction in diameter is effected by heating an axially limited section (15) so as to form an hour-glass shaped profile. The tube is then cut along a plane so as to make the hour-glass profile coincide with a reference profile. The severed end of the tube is then lapped and covered with a non-wettable material. Finally the tube is glued under vacuum within a cylindrical piezo-electric transducer.
    The apparatus for manufacturing the tubes includes a vertical mandrel (12) which receives the tubes one at a time from a feeder (17, 18) and rotates them relative to a pair of gas nozzles (13) for heating the said section (15)
    The profile ofthe tube is scanned by a television camera (24) which generates two signals indicative of the internal diameter. These are compared electronically (23) with a stored indication of the desired diameter and the two nozzles (13) are rctated into an inactive position when this diameter is reached. In order to cut the tube an optical device is provided which is connected to a cutting wheel to permit comparison of the hour-glass profile of the element with a reference profile. The tubular element (11) is bonded within the piezo-electric tranducer, by locating the latter partially in a chamber, after fitting it over the tubular element, while a pump draws an epoxy resin through the chamber and into the space between the transducer and the tubular element.

    摘要翻译： 用于制造基本上透明材料的管状元件（15）的方法需要逐渐减小元件的直径，同时连续测量其内径，并且当直径达到预定测量时停止该减少。 为了形成用于喷墨打印机的玻璃管，直径的减小是通过加热轴向限制部分（15）来实现的，以形成沙漏形状。 然后沿着平面切割管，以使沙漏形状与参考轮廓一致。 然后将管的切断端重叠并用不可润湿的材料覆盖。 最后，管子在真空下胶合在一个圆柱形压电换能器内。 用于制造管的装置包括垂直心轴（12），其从进料器（17,18）一次接收管，并相对于一对气体喷嘴（13）旋转它们，用于加热 所述部分（15）...通过产生指示内径的两个信号的电视摄像机（24）扫描管的轮廓。 将这些电子（23）与存储的所需直径的指示进行比较，并且当达到该直径时，两个喷嘴（13）旋转到非活动位置。 为了切割管，设置了连接到切割轮的光学装置，以允许将元件的时间玻璃轮廓与参考轮廓进行比较。 管状元件（11）通过将管状元件（11）安装在管状元件上之后，将其部分地安置在腔室中而将其固定在压电传感器内，同时泵将环氧树脂通过腔室并进入换能器和 管状元件。