Method and apparatus for electrostatic powder coating
    1.
    发明授权
    Method and apparatus for electrostatic powder coating 失效
    静电粉末涂装方法及装置

    公开(公告)号:US4377603A

    公开(公告)日:1983-03-22

    申请号:US90395

    申请日:1979-11-01

    摘要: A workpiece which may be made of a highly electrically insulating material is held in a spaced opposing relationship with respect to a silent discharge plate electrode to which an a.c. voltage is applied. A d.c. voltage is applied across the workpiece and the silent discharge plate electrode to form a driving electric field therebetween. Powder particles suspended in air are charged in the same polarity as that of the silent discharge plate electrode and then injected into the region between the silent discharge plate electrode and the workpiece where the electric field drives the charged particles toward the workpiece to coat it. The a.c. voltage is sufficient to repel the electrode surface confronting the workpiece and to maintain the silent discharge at a reduced level and effectively precluding deposit of powder particles on the mentioned surface. An apparatus for the electrostatic coating is also disclosed.

    摘要翻译: 可以由高电绝缘材料制成的工件相对于静音放电板电极保持间隔开的相对关系。 施加电压。 一个d.c. 在工件和无声放电板电极之间施加电压,以在它们之间形成驱动电场。 悬浮在空气中的粉末颗粒以与无声放电板电极相同的极性充电,然后注入静电放电板电极和工件之间的区域,在该区域中电场驱动带电粒子朝向工件涂覆。 a.c. 电压足以排斥面对工件的电极表面,并将静音放电维持在降低的水平,并有效地排除粉末颗粒沉积在所述表面上。 还公开了一种用于静电涂覆的装置。

    Apparatus used in continuous process for electrostatic coating with
pulverized material
    2.
    发明授权
    Apparatus used in continuous process for electrostatic coating with pulverized material 失效
    用于连续工艺中用于用粉碎材料静电涂覆的装置

    公开(公告)号:US4230068A

    公开(公告)日:1980-10-28

    申请号:US956999

    申请日:1978-10-31

    摘要: This invention relates to a continuous process for electrostatically coating a substantially axially symmetrical object with pulverized material, characterized by conveying said object by means of a conveyor-type holding device into an electrostatic coating chamber equipped with silent discharge plate electrodes on both sides of the chamber walls: feeding electrically charged pulverized material into said chamber: electrostatically coating said object with said pulverized material by the action of silent discharge from said electrodes: and removing surplus pulverized material from the specific parts of said object by suction.This invention further relates to an apparatus used for continuously electrostatically coating a substantially axially symmetrical object with pulverized synthetic resin, characterized by comprising (i) an electrostatic coating chamber where said pulverized synthetic resin is coated on the surface of said object maintained at a temperature below the melting point of said resin, which object has been conveyed into said chamber by means of a holding device and (ii) a device for removing surplus pulverized resin from the specific parts of said object by suction in order to electrostatically coat the desired part only.

    摘要翻译: 本发明涉及一种使用粉碎材料静电涂覆基本上轴向对称的物体的连续方法,其特征在于,通过输送机型保持装置将所述物体输送到在所述室的两侧装备有无声放电板电极的静电涂层室 将带电荷的粉碎材料供给到所述室中:通过所述电极的静音放电的动作,用所述粉碎材料静电涂覆所述物体;以及通过抽吸从所述物体的特定部分除去多余的粉碎材料。 本发明还涉及一种用于用粉碎的合成树脂连续静电涂覆基本轴向对称的物体的装置,其特征在于包括:(i)静电涂覆室,其中所述粉碎的合成树脂被涂覆在所述物体的表面上,保持在低于 所述树脂的熔点通过保持装置被输送到所述室中,以及(ii)用于通过抽吸从所述物体的特定部分除去多余的粉碎树脂的装置,以仅静电涂覆所需的部分 。

    Apparatus for forming a powder layer on the surface of a metallic
squeeze-out tube
    3.
    发明授权
    Apparatus for forming a powder layer on the surface of a metallic squeeze-out tube 失效
    在金属排液管表面形成粉末层的装置

    公开(公告)号:US4112869A

    公开(公告)日:1978-09-12

    申请号:US762504

    申请日:1977-01-26

    摘要: A novel metallic squeeze-out tube suitable for packing paste-like foods whose flavor is regarded as important or the like is described herein, in which a resin powder layer is formed on its inner surface and on the outer surface of its neck portion by electrostatic painting and thereafter it is finished by baking, whereby a resin coating film that is free from pin holes and has a strong corrosion resistance can be formed. Also a novel apparatus for forming a resin powder layer for such metallic squeeze-out tube is described, in which a cylindrical high voltage electrode is disposed in the proximity of an outer surface of a neck portion of an unprocessed metallic squeeze-out tube, a rod-shaped electrode to be inserted concentrically to the interior of the neck portion is provided if the inner diameter of the neck portion is large, a cylindrical high voltage electrode that is vertically movable and adapted to eject resin powder is disposed in the interior of the body portion of the squeeze-out tube, and further, air flows at the various portions in the metallic squeeze-out tube are adjusted so as to continuously form a powder layer.

    摘要翻译: 本文描述了一种适用于包装其味道重要等的糊状食品的新型金属挤出管,其中通过静电在其颈部的内表面和外表面上形成树脂粉末层 然后通过烘烤完成,从而可以形成不具有针孔并具有强耐腐蚀性的树脂涂膜。 还描述了一种用于形成这种金属挤出管的树脂粉末层的新型装置,其中圆柱形高压电极设置在未加工的金属挤出管的颈部的外表面附近, 如果颈部的内径大,则设置与颈部内部同心地插入的棒状电极,将能够上下移动并适合于喷射树脂粉末的圆柱形高压电极设置在内部 挤出管的主体部分,并且还调节在金属挤出管中的各个部分处的空气流动,以便连续地形成粉末层。

    Method for coating a metallic squeeze-out tube
    4.
    发明授权
    Method for coating a metallic squeeze-out tube 失效
    涂敷金属挤出管的方法

    公开(公告)号:US4271208A

    公开(公告)日:1981-06-02

    申请号:US7390

    申请日:1979-01-29

    摘要: A novel metallic squeeze-out tube suitable for packing paste-like foods whose flavor is regarded as important or the like is described herein, in which a resin powder layer is formed on its inner surface and on the outer surface of its neck portion by electrostatic painting and thereafter it is finished by baking, whereby a resin coating film that is free from pin holes and has a strong corrosion resistance can be formed. Also a novel apparatus for forming a resin powder layer for such metallic squeeze-out tube is described, in which a cylindrical high voltage electrode is disposed in the proximity of an outer surface of a neck portion of an unprocessed metallic squeeze-out tube, a rod-shaped electrode to be inserted concentrically to the interior of the neck portion is provided if the inner diameter of the neck portion is large, a cylindrical high voltage electrode that is vertically movable and adapted to eject resin powder is disposed in the interior of the body portion of the squeeze-out tube, and further, air flows at the various portions in the metallic squeeze-out tube are adjusted so as to continuously form a powder layer.

    摘要翻译: 本文描述了一种适用于包装其味道重要等的糊状食品的新型金属挤出管,其中通过静电在其颈部的内表面和外表面上形成树脂粉末层 然后通过烘烤完成,从而可以形成不具有针孔并具有强耐腐蚀性的树脂涂膜。 还描述了一种用于形成这种金属挤出管的树脂粉末层的新型装置,其中圆柱形高压电极设置在未加工的金属挤出管的颈部的外表面附近, 如果颈部的内径大,则设置与颈部内部同心地插入的棒状电极,将能够上下移动并适合于喷射树脂粉末的圆柱形高压电极设置在内部 挤出管的主体部分,并且还调节在金属挤出管中的各个部分处的空气流动,以便连续地形成粉末层。

    Metallic squeeze-out tube with resinous layer on its surface
    5.
    发明授权
    Metallic squeeze-out tube with resinous layer on its surface 失效
    金属挤出管,其表面具有树脂层

    公开(公告)号:US4213541A

    公开(公告)日:1980-07-22

    申请号:US827890

    申请日:1977-08-26

    摘要: A novel metallic squeeze-out tube suitable for packing paste-like foods whose flavor is regarded as important or the like is described herein, in which a resin powder layer is formed on its inner surface and on the outer surface of its neck portion by electrostatic painting and thereafter it is finished by baking, whereby a resin coating film that is free from pin holes and has a strong corrosion resistance can be formed. Also a novel apparatus for forming a resin powder layer for such metallic squeeze-out tube is described, in which a cylindrical high voltage electrode is disposed in the proximity of an outer surface of a neck portion of an unprocessed metallic squeeze-out tube, a rod-shaped electrode to be inserted concentrically to the interior of the neck portion is provided if the inner diameter of the neck portion is large, a cylindrical high voltage electrode that is vertically movable and adapted to eject resin powder is disposed in the interior of the body portion of the squeeze-out tube, and further, air flows at the various portions in the metallic squeeze-out tube are adjusted so as to continuously form a powder layer.

    Powder coating booth
    6.
    发明授权
    Powder coating booth 失效
    粉末涂装室

    公开(公告)号:US4898116A

    公开(公告)日:1990-02-06

    申请号:US241343

    申请日:1988-09-07

    IPC分类号: B05B15/04 B05B15/12

    摘要: A powder coating booth a function of supplying air though its ceiling. Sidewalls of the booth is formed from an insulating material or a semiconductor. A belt conveyor is disposed at the bottom of the booth. An electric field is formed so that it extends from a paint gun to the conveyor belt. The majority of oversprayed powder paint produced during painting becomes attached to the upper surface of a portion of the conveyor belt, is carried, together with this belt portion, to the outside of the booth, and is recovered from the conveyor by a blowing-type of static eliminator, thereby minimizing the mount of oversprayed powder paint mixed in an exhaust of the booth drawn through the sidewall.

    摘要翻译: 粉末涂料室具有通过天花板供应空气的功能。 展台的侧壁由绝缘材料或半导体形成。 皮带输送机设在展位的底部。 形成电场,使其从喷枪延伸到输送带。 在涂装过程中产生的大部分喷涂过的粉末涂料附着在输送带的一部分的上表面上,与该带部分一起被携带到展位的外部,并通过吹塑式从输送机回收 的静电消除器,从而最小化混合在通过侧壁拉出的展位的排气中的过度喷涂的粉末涂料的安装。

    Powder charging apparatus and electrostatic powder painting apparatus
    10.
    发明授权
    Powder charging apparatus and electrostatic powder painting apparatus 失效
    粉末充电装置和静电粉末喷涂装置

    公开(公告)号:US4805069A

    公开(公告)日:1989-02-14

    申请号:US022765

    申请日:1987-03-06

    CPC分类号: B05B5/032

    摘要: A powder charging apparatus, in which a plasma electrode pair is disposed within an insulative tubular passage for transporting powder as carried by gas, a device for intermittently applying a D.C. voltage between that pair of plasma electrode is provided to form a space where mainly desired polarity ions drawn from the plasma electrode pair exist and another space where mainly opposite polarity ions exist, well dispersed powder is fed to the former space where mainly the desired polarity ions exist, and thereby stable and strong charging performances can be assured for a long term without adhesion and accumulation of the powder to and on either one of the pair of plasma electrodes; and an electrostatic powder painting apparatus containing this powder charging apparatus therein and having excellent penetrating performance and painting efficiency.

    摘要翻译: 一种粉末充电装置,其中等离子体电极对设置在用于运送由气体携带的粉末的绝缘管状通道内,在该对等离子体电极之间间歇施加DC电压的装置被提供以形成主要期望极性的空间 从等离子体电极对得到的离子存在,另外存在主要相反的极性离子的空间,将良好分散的粉末供给到主要所需的极性离子存在的前一个空间,从而长期稳定而强的充电性能没有 粉末粘附并积聚在一对等离子体电极之间和之上; 以及其中含有该粉末填充装置并且具有优异的穿透性能和喷涂效率的静电粉末喷涂装置。