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39 条记录 (耗时 0.013 秒)

    Improvements in and relating to spray guns
    3.
    发明公开
    Improvements in and relating to spray guns 失效
    喷枪的改进

    公开(公告)号：EP1254720A3

    公开(公告)日：2003-03-12

    申请号：EP02077554.0

    申请日：1993-09-28

    申请人： NORDSON CORPORATION

    发明人： Haller, Curtis B. ,  Knobbe, Alan J. ,  Crum, Gerald W.

    IPC分类号： B05B5/047

    CPC分类号： B05B5/047

    摘要： A tribo-electric powder spray gun (10) includes a diffuser for mixing powder with a conveying gas, a charging portion (16) downstream of the diffuser, and a sprayhead (17) at the outlet of the charging portion (16) for dispensing the charged powder. The charging portion (16) has an inner core (32) removably positioned within a hollow outer cylinder (33) with an annular gap (46) formed therebetween providing a charging flowpath for the powder. The inner core (32) and the outer cylinder (33) have undulating or wavy charging surfaces (54,56) made of an electrically insulating material, so that the annular gap (46) provides a tortuous path for the powder, enhancing powder contact and the charged imparted to the powder. Grounding is provided by surface conduction of the electrically insulating contact material through a ground ring (81) located outside the powder path at the inlet to the charging portion where the greatest amount of charging occurs. Locating the ground ring (81) outside the powder path keeps the ground ring (81) clean and minimises the amount of charging surface. The inner core (32) and the outer cylinder (33) are longitudinally symmetrical to facilitate re-assembly.

    摘要翻译： 一种摩擦电动粉末喷枪（10），包括用于将粉末与输送气体混合的扩散器，位于扩散器下游的充电部分（16）以及位于充电部分（16）出口处的喷头（17） 带电的粉末。 充电部分（16）具有可移除地定位在中空外圆筒（33）内的内芯（32），其间形成有环形间隙（46），从而为粉末提供充电流动路径。 内芯（32）和外圆柱（33）具有由电绝缘材料制成的起伏或波状充电表面（54,56），使得环形间隙（46）为粉末提供曲折路径，增强粉末接触 和被赋予粉末的电荷。 通过电绝缘触点材料通过位于充电部分的入口处的粉末路径外部的接地环（81）的表面传导来提供接地，其中发生最大量的充电。 将接地环（81）放置在粉末路径外侧可保持接地环（81）清洁，并使充电表面的数量减至最少。 内芯（32）和外圆筒（33）纵向对称以便于重新组装。

    Method and apparatus for powder coating welded cans
    5.
    发明公开
    Method and apparatus for powder coating welded cans 失效
    用于焊接罐的Pulverbeschichtigung方法和装置

    公开(公告)号：EP0732151A3

    公开(公告)日：1998-03-25

    申请号：EP96300689.5

    申请日：1996-01-31

    申请人： NORDSON CORPORATION

    发明人： Wilson, Timothy Edward ,  Merk, Raymond J. ,  Niemiec, Ronald E. ,  Saidman, Laurence B. ,  Crum, Gerald W. ,  Kakuta, Wataru ,  Matsunaga, Masafumi

    IPC分类号： B05B13/06 ,  B05B5/047 ,  B05B5/03

    CPC分类号： B05B7/144 ,  B05B5/032 ,  B05B5/047 ,  B05B5/12 ,  B05B5/1683 ,  B05B13/0618 ,  B05B14/10 ,  B05B15/80 ,  Y02P70/36 ,  Y10S118/03

    摘要： Methods and apparatus are disclosed for spraying powder into the interior of welded hollow can bodies from a spray gun mounted to the welding arm of a can forming machine. The spray gun can either apply a stripe of highly charged powder on the welded seam areas of hollow can bodies, or can simultaneously apply a coating of powder having a first thickness on the longitudinally welded seam areas and a second thickness less than the first thickness on the remainder of the interior surface. Air is vented off from the powder flow being transported through the welding arm so that the powder to air ratio is increased. Air is introduced at the downstream end of the welding arm to provide a suction force to help draw the powder flow through the welding arm and to increase the velocity of the powder flow for better tribo charging of the powder in the gun and to improve spray pattern stability. A flow of cleaning air through the powder spray gun prevents powder from collecting on the front surface of an offset nozzle secured to the spray gun. The gun assembly is affectively grounded to prevent arcing, and has an exterior shape which has been geometrically configured to improve powder coating of the can.

    Unipolarity powder coating systems including improved tribocharging and corona guns
    7.
    发明公开
    Unipolarity powder coating systems including improved tribocharging and corona guns 审中-公开
    Unipolare Pulverbeschichtungssysteme mit verbesserter Reibungsaufladung und Koronapistolen

    公开(公告)号：EP1452236A2

    公开(公告)日：2004-09-01

    申请号：EP04076629.7

    申请日：2001-07-09

    申请人： NORDSON CORPORATION

    发明人： Sanner, Michael Ross ,  Rehman, William R. ,  Lader, Harry J. ,  Guskov, Sergey ,  Knobbe, Alan John ,  Messerly, James W. ,  Crum, Gerald W.

    IPC分类号： B05B5/047

    CPC分类号： B05B5/0418 ,  B05B1/02 ,  B05B1/04 ,  B05B1/042 ,  B05B1/265 ,  B05B5/032 ,  B05B5/0407 ,  B05B5/0426 ,  B05B5/047 ,  B05B5/053

    摘要： A plurality of unconventional negative tribocharging materials are described for use as the powder contact surfaces in tribocharging and corona powder spray guns, gun components, and powder delivery system components. The invention also provides a short barrel tribocharging powder spray gun (200) having an interchangeable powder contact insert (220) and nozzle (230), with turbulence inducing air jets (240). The invention further provides novel tribocharging and corona gun designs. Improved powder coating systems are made possible wherein, for example, negative tribo guns can be utilized with negative corona guns to coat different parts of the same workpiece in a powder coating system. Also provided is an inside-out configuration in which pressurized air directs powder coating material outward towards a charging surface. Additional configurations provide air jet induced tribocharging and conventional tribocharging portions combined in a single gun.

    摘要翻译： 描述了多种非常规的负摩擦充电材料用作摩擦充电和电晕粉末喷枪，枪组件和粉末输送系统部件中的粉末接触表面。 本发明还提供了具有可互换的粉末接触插入件（220）和喷嘴（230）的短桶摩擦充量粉末喷枪（200），其具有引起湍流的空气射流（240）。 本发明还提供新颖的摩擦充电和电晕枪设计。 改进的粉末涂覆系统是可能的，其中例如可以使用负电晕枪与负电晕枪一起在粉末涂覆系统中涂覆相同工件的不同部分。 还提供了一种内向外配置，其中加压空气将粉末涂料向外朝向充电表面引导。 另外的配置提供喷气式感应摩擦增压和在单个喷枪中组合的常规摩擦充量部分。

    Improvements in and relating to spray guns
    8.
    发明公开
    Improvements in and relating to spray guns 失效
    喷枪的改进

    公开(公告)号：EP1090689A3

    公开(公告)日：2002-01-30

    申请号：EP01200050.1

    申请日：1993-09-28

    申请人： NORDSON CORPORATION

    发明人： Haller, Curtis B. ,  Knobbe, Alan J. ,  Crum, Gerald W.

    IPC分类号： B05B5/047

    CPC分类号： B05B5/047

    摘要： A tribo-electric powder spray gun (10) includes a diffuser (15) for mixing powder with a conveying gas, a charging portion (16) downstream of the diffuser, and a sprayhead (17) at the outlet of the charging portion (16) for dispensing the charged powder. The charging portion (16) has an inner core (32) removably positioned within a hollow outer cylinder (33) with an annular gap (46) formed therebetween providing a charging flowpath for the powder. The inner core (32) and the outer cylinder (33) have undulating or wavy charging surfaces made of an electrically insulating material, so that the annular gap (46) provides a tortuous path for the powder, enhancing powder contact and the charged imparted to the powder. Grounding is provided by surface conduction of the electrically insulating contact material through a ground ring (81) located outside the powder path at the inlet to the charging portion where the greatest amount of charging occurs. Locating the ground ring (81) outside the powder path keeps the ground ring clean and minimises the amount of charging surface. The inner core (32) and the outer cylinder (33) are longitudinally symmetrical to facilitate re-assembly.

    摘要翻译： 一种摩擦电动粉末喷枪（10）包括用于将粉末与输送气体混合的扩散器（15），在扩散器下游的充电部分（16）以及在充电部分（16）的出口处的喷头（17） ）用于分配带电粉末。 充电部分（16）具有可移除地定位在中空外圆筒（33）内的内芯（32），其间形成有环形间隙（46），从而为粉末提供充电流动路径。 内芯（32）和外圆柱（33）具有由电绝缘材料制成的起伏或波状充电表面，使得环形间隙（46）为粉末提供了曲折路径，增强了粉末接触并且赋予 粉末。 通过电绝缘触点材料通过位于充电部分的入口处的粉末路径外部的接地环（81）的表面传导来提供接地，其中发生最大量的充电。 将接地环（81）放置在粉末路径的外部，可以保持接地环清洁并将充电表面的数量降至最低。 内芯（32）和外圆筒（33）纵向对称以便于重新组装。

    Mounting assembly for spray gun with anti-back-ionization probe
    9.
    发明公开
    Mounting assembly for spray gun with anti-back-ionization probe 失效
    BefestigungseinrichtungfürSprühzerstäubermit Gegenelektrode

    公开(公告)号：EP0745431A2

    公开(公告)日：1996-12-04

    申请号：EP96303950.8

    申请日：1996-05-31

    申请人： NORDSON CORPORATION

    发明人： Crum, Gerald W. ,  Knobbe, Alan J. ,  Haller, Curtis B.

    IPC分类号： B05B15/06

    CPC分类号： B05B5/0535 ,  B05B5/032 ,  B05B5/0533 ,  B05B15/62

    摘要： A mounting assembly for adjustably mounting a spray gun onto a mounting bar comprises a ball-and-socket joint attached at one end to the bar and attached at the other end to the gun, and an adjustment sleeve extending along the exterior of the bar. The sleeve is attached to the ball-and-socket joint and adapted to tighten the socket around the ball when the sleeve is turned to retain the gun securely in a desired position with respect to the bar. The mounting assembly allows for positioning the spray gun in an almost limitless range of possible orientations, and allows the securing mechanism to be easily tightened and loosened by the operator by turning the adjustment sleeve. An anti-back-ionization probe is attached to the gun and extends externally to the gun along the top or side of the gun. The probe comprising an elongated rod, which is easily removable and easily adjustable in length.

    摘要翻译： 用于将喷枪可调节地安装到安装杆上的安装组件包括：球窝接头，其一端连接到杆并在另一端附接到枪，以及沿着杆的外部延伸的调节套筒。 套筒连接到球窝接头，并且当套筒被转动以将枪牢固地保持在相对于杆的期望位置时，适于在球周围拧紧插座。 安装组件允许将喷枪定位在可能取向的几乎无限范围内，并且允许操作者通过转动调节套筒容易地紧固和松开固定机构。 一个反电离探头连接到枪上，并沿枪的顶部或侧面向外延伸到枪上。 探头包括细长的杆，其易于移除并且容易地在长度上可调节。

    A system and method of pumping a constant volume of powder
    10.
    发明公开
    A system and method of pumping a constant volume of powder 失效
    Vorrichtung und Verfahren zumFördernvon Pulver mit konstantem Volumen

    公开(公告)号：EP0714707A1

    公开(公告)日：1996-06-05

    申请号：EP95307717.9

    申请日：1995-10-30

    申请人： NORDSON CORPORATION

    发明人： Crum, Gerald W.

    IPC分类号： B05B7/14

    CPC分类号： B05B7/1422

    摘要： An apparatus and method for pumping a constant volume of powder to a powder spray gun (12) includes a powder pump which meters the powder into a stream of air so that a constant volume of the air entrained powder is distributed to the spray gun (12). The invention also discloses a pressure equalizing system (104) that prevents powder leakage across a powder metering system that meters powder from a reservoir (16) into an outlet tube carrying the constant velocity stream of air. A control system is disclosed which adjusts the rate at which powder is metered into the outlet tube (20) so that the mass flow of powder exiting the outlet tube (20) remains constant.

    摘要翻译： 将恒定体积的粉末泵送到粉末喷枪（12）的装置和方法包括将粉末计量成空气流的粉末泵，使得将恒定体积的空气夹带的粉末分配到喷枪（12） ）。 本发明还公开了一种压力均衡系统（104），其防止粉末泄漏通过粉末计量系统，粉末计量系统将粉末从储存器（16）计量到承载恒定速度的空气流的出口管中。 公开了一种控制系统，其调节将粉末计量到出口管（20）中的速率，使得离开出口管（20）的粉末的质量流量保持恒定。