公开(公告)号：US4158071A

公开(公告)日：1979-06-12

申请号：US831980

申请日：1977-09-09

Applicant: Thomas F. Jordan ,  Robert D. Payne

Inventor： Thomas F. Jordan ,  Robert D. Payne

IPC: B05C7/02 ,  B05B5/025 ,  B05B5/08 ,  B05B5/12 ,  B05B5/16 ,  B05B13/06 ,  B05B15/04 ,  B05C7/04 ,  B05D1/06 ,  B05D7/22 ,  F16L58/10 ,  B05B5/02

CPC classification number: B05D7/22 ,  B05B13/0654 ,  B05B15/0412 ,  B05B5/12 ,  B05B5/1683 ,  Y02P70/36 ,  Y10S118/10

Abstract: A method and apparatus for coating the inside of tubular members, more specifically can bodies, which are open at opposite ends. The apparatus includes a supply tube and a return tube which are spaced apart to have received therebetween the tubular member to be coated. In each of the supply tube and the return tube there is positioned a corona electrode, the corona electrodes being in alignment wherein powder supplied to the interior of the tubular member is both initially charged as it passes through the supply tube and is further charged within the tubular member by an electrical field which exists between the two corona electrodes and the tubular member. Powder is supplied to the supply tube through a small diameter passage as compared to the diameter of the supply tube and there is provided a diverter which effects radially outward flow of incoming powder so that the powder is concentrated substantially adjacent the inner surface of the supply tube so that the powder delivered to the tubular member flows substantially entirely along the inner surface of the tubular member. The method and apparatus permits the provision of a thin coating on the tubular member which is uniform in thickness even at opposite ends thereof.

Abstract translation: 一种用于涂覆管状构件内部的方法和装置，更具体地说是在相对端开口的罐体。 该设备包括供给管和返回管，其间隔开以在其间容纳待涂覆的管状构件。 在每个供应管和返回管中设置有电晕电极，电晕电极对准，其中供应到管状构件内部的粉末在其通过供给管时首先被充电，并且进一步带电 管状构件通过存在于两个电晕电极和管状构件之间的电场。 与供给管的直径相比，粉末通过小直径通道供给到供给管，并且设置有转向器，其将进入的粉末径向向外流动，使得粉末基本上集中在供给管的内表面 使得输送到管状构件的粉末基本上沿着管状构件的内表面流动。 该方法和装置允许在管状构件上提供厚度均匀的薄涂层，即使在其相对端。

公开(公告)号：US4144553A

公开(公告)日：1979-03-13

申请号：US792620

申请日：1977-05-02

Applicant: Klaus Schmidt ,  Adolf Graber ,  Hans U. Helbeck

Inventor： Klaus Schmidt ,  Adolf Graber ,  Hans U. Helbeck

IPC: B05B5/08 ,  B05B5/057 ,  B05B5/14 ,  B05B5/02

CPC classification number: D01D5/0069 ,  B05B5/14

Abstract: An apparatus for use with a device for producing a suitable electric field to effect the electrodynamic spraying of solutions, dispersions, or mixtures of solids. The apparatus includes at least one spray station for spraying into a given spray zone. Each spray station includes two spaced apart tanks for holding the medium to be sprayed and which are disposed on both sides of the spray zone. An endless band is supported by pulleys disposed at each tank for circulating the band and constantly running a run thereof through the tanks. Squeegees are disposed at each tank to remove excess medium from the band and inlet and outlet connections in each tank effect a desired level of the medium therein.

Abstract translation: 一种与用于产生适当电场的装置一起使用以实现溶液，分散体或固体混合物的电动喷雾的装置。 该装置包括至少一个用于喷射到给定喷雾区中的喷雾站。 每个喷雾站包括两个间隔开的罐，用于保持要喷涂的介质并且设置在喷涂区的两侧。 一个环形带被设置在每个罐上的带轮支撑，用于循环带并且不断地运行其流过罐。 刮板被布置在每个罐中以从带中去除多余的介质，并且每个罐中的入口和出口连接影响其中的介质的期望水平。

公开(公告)号：US4069792A

公开(公告)日：1978-01-24

申请号：US683774

申请日：1976-05-06

Applicant: Douglas C. Nethersole ,  Michael A. Dudley ,  Mellapalayam R. Parthasarathy

Inventor： Douglas C. Nethersole ,  Michael A. Dudley ,  Mellapalayam R. Parthasarathy

IPC: B05B5/08 ,  B05C19/02

CPC classification number: B05C19/025

Abstract: An electrostatic fluidized bed coating unit is disclosed. The coating unit comprises a plenum chamber with means for ingress of a gas under a greater than atmospheric pressure, a porous plate located on top of the plenum chamber and extending to the limits of the containing walls of the plenum chamber, containing walls for powder immediately above the porous plate and forming essentially a continuation of the plenum chamber walls, a coating chamber secured to such powder containing walls, and an exhaust system for effecting a uniform fluidizing gas removal from an area essentially directly above the porous plate.

Abstract translation: 公开了静电流化床涂层单元。 涂层单元包括具有用于在大于大气压下进入气体的装置的增压室，位于增压室顶部并延伸到增压室的容纳壁的极限的多孔板，其立即包含用于粉末的壁 在多孔板上方并且基本上形成增压室壁的延续，固定到这种含有粉末的壁的涂层室，以及用于实现从基本上在多孔板的正上方的区域去除均匀的流化气体的排气系统。

公开(公告)号：US4041901A

公开(公告)日：1977-08-16

申请号：US445289

申请日：1974-02-22

Applicant: Kenneth W. Rarey ,  Edward D. Higgins ,  Donald L. Hungerford ,  John B. Kennedy, Jr.

Inventor： Kenneth W. Rarey ,  Edward D. Higgins ,  Donald L. Hungerford ,  John B. Kennedy, Jr.

IPC: B41M1/12 ,  G03G15/09 ,  B05B5/08

CPC classification number: G03G15/09 ,  B41M1/125

Abstract: Electrostatic printing or coating apparatus including a main drum for transporting developer mix to an application or printing zone and having permanent magnet segments mounted within the drum for attracting developer mix to its exterior surface. An electric field is produced in the printing zone to provide movement of developer particles toward the article to be printed or coated and a field producing electrode is mounted within the drum adjacent the printing zone. A container conveyor extends past the printing zone to provide positioning of container portions to be coated, and a further drum having interior permanent magnet segment is positioned to remove developer mix from the main drum. The further drum may be rotated in the rotational direction opposite that of the main drum to reduce developer turbulence. Removal of the developer mix from the apparatus may be effected by a member pivotally mounted to open an aperture and having an edge engageable with a movable developer mix carrying member to provide diversion of the mix through the aperture.

Abstract translation: 静电印刷或涂覆设备，包括用于将显影剂混合物输送到施加或印刷区域并具有安装在滚筒内的永久磁体段的主鼓，以将显影剂混合物吸引到其外表面。 在打印区域中产生电场以提供显影剂颗粒朝向待印刷或涂覆的制品的移动，并且场产生电极安装在与印刷区域相邻的滚筒内。 容器输送机延伸穿过打印区域以提供要被涂覆的容器部分的定位，并且具有内部永久磁铁段的另一滚筒被定位成从主滚筒去除显影剂混合物。 另外的滚筒可以沿与主滚筒相反的旋转方向旋转以减少显影剂紊流。 从设备中去除显影剂混合物可以通过枢转地安装以打开孔并且具有可与可移动显影剂混合物承载构件接合的边缘的构件来实现，以提供混合物通过孔的分流。

公开(公告)号：US4029995A

公开(公告)日：1977-06-14

申请号：US646942

申请日：1976-01-06

Applicant: Tsutomu Itoh

Inventor： Tsutomu Itoh

IPC: B03C7/02 ,  B05B5/08 ,  H01T23/00 ,  H05B5/02

CPC classification number: H01T23/00 ,  B03C7/026 ,  B05B5/088

Abstract: In a pair of surface-shaped silent discharge electrodes opposed to each other and separated by a predetermined space therebetween, phases of alternating voltages are applied to said respective silent discharge electrodes shifted in phase with respect to each other so that a silent discharge may arise alternately on either one of the electrode surfaces. A second alternating voltage is applied between the silent discharge electrodes and is alternatingly varied at a fundamented frequency twice as high as the frequency of the first alternating voltages applied to said surface-shaped silent discharge electrodes and is not inverted in polarity during the period when the silent discharge exists on either one of the electrode surfaces. Powder particles are passed through the space which separates the pair of surface-shaped silent discharge electrodes and charged in either positive or negative polarity continuously at a high efficiency.

Abstract translation: 在彼此相对并分开预定间隔的一对表面形状的无声放电电极中，交替电压的相位被施加到相对于彼此移相同步的所述各静音放电电极，从而可以交替地产生静音放电 在任一个电极表面上。 在静音放电电极之间施加第二交流电压，并且以施加到所述表面形静音放电电极的第一交流电压的频率的两倍高的基本频率交替地变化，并且在 静电放电存在于任一个电极表面上。 粉末颗粒通过分离一对表面形静音放电电极的空间，并以高效率连续地以正或负极性充电。

公开(公告)号：US4002144A

公开(公告)日：1977-01-11

申请号：US575706

申请日：1975-05-08

Applicant: Marcello Lang ,  Leonaldo Ansaldo

Inventor： Marcello Lang ,  Leonaldo Ansaldo

IPC: B05C19/02 ,  B05B5/08 ,  B05C13/02 ,  B05C19/04 ,  B29C31/00 ,  B29C41/00 ,  B29C41/08 ,  B29C41/34 ,  B65G47/84

CPC classification number: B05B5/082 ,  B05C13/02 ,  B05C19/04 ,  B65G47/846

Abstract: An installation for coating substantially U-shaped or V-shaped articles, such as hairpins, curlers and similar items includes treatment stations comprising a coating station at which a powderous plastic material is applied onto those portions of the objects which are to be coated, a heating station at which the said portions of the objects are heated to a temperature at which said powderous plastic material melts, and conveying means for conveying said objects to said stations. The installation according to the instant invention comprises at its inlet end inlet means for introducing in bulk the objects to be coated into said installation, pick-up means for separately picking up said objects one by one, and orienting and feeding means for feeding said objects to said coating stations, at least a part of said orienting and feeding means being adapted to mask the remaining portions of said objects, which are not to be coated.

Abstract translation: 用于涂覆基本上U形或V形制品（例如发夹，卷发夹和类似物品）的装置包括处理站，其包括涂覆站，在其上将粉状塑料材料施加到要涂覆的物体的那些部分上 加热站，其中所述物体的所述部分被加热到所述粉状塑料材料熔化的温度，以及用于将所述物体传送到所述站的输送装置。 根据本发明的装置包括在其入口端入口装置，用于将要涂覆的物体大量地引入所述装置中，用于单独地拾取所述物体的拾取装置，以及用于将所述物体进给的定向和供给装置 对于所述涂布站，所述定向和进给装置的至少一部分适于掩蔽所述物体的其余部分，其不被涂覆。

公开(公告)号：US3952699A

公开(公告)日：1976-04-27

申请号：US452552

申请日：1974-03-19

Applicant: Heinz Durr ,  Klaus Gafgen

Inventor： Heinz Durr ,  Klaus Gafgen

IPC: B05B5/08 ,  B05B13/04 ,  B05B15/12 ,  B05D1/06 ,  B05D7/00 ,  B05D7/14 ,  B05C11/12 ,  B05C5/00

CPC classification number: B05D7/52 ,  B05B13/0452 ,  B05B15/1207 ,  B05B15/1229 ,  B05B15/1288 ,  B05B5/081 ,  B05B5/082 ,  B05D1/06 ,  B05D7/14 ,  B05B13/041

Abstract: A workpiece, such as the body of a vehicle is advanced in suspended condition in one of two transversely spaced paths until it is opposite a treating station which is located between and spaced from both of the paths. There are several such treating stations provided, spaced along the paths, and they are each capable of affording a different treating action. The workpiece is placed opposite the desired work treating station and is then shifted transversely of the paths to the treating station where it undergoes treatment, to be subsequently shifted to the other of the paths and along the same.BACKGROUND OF THE INVENTIONThe present invention relates generally to the treating of workpieces, and more particularly to a method of and an apparatus for treating of workpieces. Still more particularly, the invention relates to a method of treating a vehicle body or the like by providing it with a surface coating, and to an apparatus for carrying out the method.The invention will be described herein with respect to the treating of vehicle bodies, but it should be understood that it can also be used for treating of other workpieces.In the treating of vehicle bodies, and in particular in the applying of coatings to them, the industry desires to use electrostatic application of powder material as a surface coating for the bodies. Such electrostatic application of powder to an object, such as a vehicle body, is already known in the art. Two basic processes are known, according to one the vehicle body is pre-treated, by cleaning it, washing it and phosphatizing it, whereupon the exterior surfaces of the vehicle body are sprayed with a neutral base coat. Subsequently, the vehicle body is internally painted electrophoretically and thereupon a cover lacquer is applied by spraying a liquid laquer of desired color onto the body. The application of the cover layer can take place in one and the same spray booth, even though two or more colors may be used for one and the same vehicle body. Of course, losses of paint from dripping or the like must be accepted, because paint lost in this manner is almost impossible to recover.The other method known from the art does not use the application of a base coat of powder as in the preceding one, but instead pre-treats the workpiece as before and then immediately applies a base laquer to the inner and outer surfaces of the workpiece, usually electrophoretically. Thereupon, a finish coat is applied over the base coat by spraying color powder onto the base coat. This method has the advantage that it is substantially more economical than the first-mentioned one.Unfortunately, the second method also has certain disadvantages. In the first-mentioned method in which liquid paints are utilized, the vehicle bodies can be readily and without interruption moved through the spray booths in sequence, even though the color of paint may have to be changed from one vehicle to another, or even two or more colors may have to be applied to one and the same vehicle body. If color changes are required when powder is used to apply a coating onto the vehicle body, however, this presents difficulties because in effect it is not possible to use one and the same cabin for spraying powder of different colors. It has been observed that in this case the different-color powders become readily admixed, especially because of the powder particles which continuously float in the air of the cabin. This means that for each color a separate spray booth or cabin must be provided.This, in turn, would according to the prior-art approaches necessitate that the separate spray booths be located one behind the other, a requirement that necessitates extremely large installations. Moreover, even in this case it is virtually impossible to prevent the transfer of powder of one color from one booth to another booth wherein powder of a different color is used, as a workpiece travels seriatim through them.SUMMARY OF THE INVENTIONIt is an object of the present invention to overcome the disadvantages of the prior art.More particularly, it is an object of the present invention to provide a method of treating a workpiece at a treating station, for instance applying powder or similar material to a vehicle body, in which the undesired transfer of color material from one spray booth to another is reliably avoided.An additional object of the invention is to provide such a method wherein a plurality of individual spray booths can be provided, but which nevertheless requires substantially less space than what is known from the prior art.An additional object of the invention is to provide an apparatus for carrying out the method.In keeping with these objects and with others which will become apparent hereafter, one feature of the invention resides in a method of treating a workpiece at a treating station, particularly of surface-coating a vehicle body or the like, comprising advancing a workpiece in suspended condition in one of two transversely spaced paths until it is opposite a treating station which is located between and spaced from both of the paths. The workpiece is then shifted to the treating station transversely of the two paths, and it is treated at the treating station. Subsequently, the treated workpiece is again shifted transversely of the paths to the other one of them, and may then be removed in this other path.Unlike the prior art, in which each workpiece passes through a sequence of spray booths, and in which only the spraying equipment of that booth is operated which sprays the particular desired color --with the result that the transfer of paint particles from one booth to another is never reliably excluded--, the present invention makes it possible to advance a workpiece through only one spray booth, and eliminates any possibility that the workpiece might have to pass through more than one of these booths. However, even if two, three or more spray booths are provided, they can be located quite close together so that the overall length of such an installation can be drastically decreased, thereby also decreasing the space requirements. This is further facilitated by the fact that the workpieces are advantageously suspended, and in particular that vehicle bodies can be suspended in such a manner as to be suspended in direction of their longitudinal axis, since this makes it possible to provide spray booths the cross section of which can be significantly smaller than was otherwise the case.The present invention is particularly suitable for operations which are carried out stepwise, and it can be completely or partially automated, in which case it can be controlled by program control devices known from the art.In essence, a workpiece travels in a substantially Z-shaped path, namely it travels first in one path, then moves at more or less right angles to this path to the treating station and from there to the other path which extends more or less parallel to the first one, and it then continues its movement in this other path. This makes it possible to carry out the treating in spray booths that can be made absolutely tight against the escape of powder or other matter, and avoids the possibility that material from one spray booth might be able to migrate into another one, even though both spray booths --or several of them-- may simultaneously be operating on different workpieces.Suspending the workpieces, especially suspending vehicle bodies along their longitudinal axis, is advantageous for another reason besides the ones mentioned above, namely because it permits a more uniform and thorough application of material, such as powder, to the surfaces of the vehicle body. This is so because all exterior parts of the vehicle body are particularly well exposed to the spray nozzles when the body is so suspended. This can be further improved by turning the vehicle body about a vertical axis to expose it still more completely to the spray nozzles. The spray nozzles may also be moved vertically with reference to the workpiece, or they may be moved in other directions relative to the workpiece, and of course it is possible --although not as practical-- to so move the workpiece with reference to the spray nozzles.Due to the fact that the vehicle bodies are suspended, a particularly advantageous geometric form of the spray booths may be selected, in such a manner that by appropriately configurating the walls of the spray booth a forced circular or spiral movement of the air and the color material particles --such as powder-- can be obtained. Thus, a more uniform and reliable deposition of the material on the workpiece is assured, particularly if powder is involved in which case the charged powder particles will reliably become deposited on the workpiece as they travel in an essentially spiral path about the same.Still another advantage of the invention is the fact that only a relatively small amount of air must be vented from the spray booths, and that this cuts down substantially on the loss of powder. Instead of operating continuously with fresh air, the present invention can readily use air flow in a closed circuit, the amount of air that must be turned over per unit of time being determined by the amount of powder that is sprayed and the maximum powder concentration in the air that is permissible from a safety point of view. Any excess powder that is carried by the air out of the spray booth can be recovered in appropriate devices which are well known from the art, becoming separated therein from the circulating air.The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawing.

Abstract translation: 诸如车辆的车体的工件在两个横向间隔的路径中的一个中悬挂状态前进，直到它与位于两个路径之间并且与两个路径间隔开的处理站相对。 有几个这样的处理站设置成沿路径间隔开，并且它们各自能够提供不同的处理动作。 将工件放置在期望的工件处理台的对面，然后横向移动到经过处理的处理台，随后移动到另一个路径并沿着它们移动。

公开(公告)号：US3937180A

公开(公告)日：1976-02-10

申请号：US459470

申请日：1974-04-10

Applicant: Richard F. Wiggins

Inventor： Richard F. Wiggins

IPC: B05B5/08 ,  B05B5/02

CPC classification number: B05B5/082

Abstract: Disclosed herein are a method and apparatus for progressively charging an electrically isolated conductive workpiece from ground potential to high potential while the workpiece is supported by a moving grounded conveyor. A portion of the conveyor is selectively included in circuit with a high voltage source and a voltage divider to charge the isolated conveyed workpieces to high electrostatic potential with respect to ground. The highly charged workpieces are conveyed past a grounded spray device dispersing atomized particles (i.e., liquid or powder) which are at electrical ground potential. In accordance with well known electrostatic coating principles, the particles will be attracted to the high potential workpiece parts and will adhere thereto. As a more specific aspect of the invention, the high potential is applied to the workpieces through a unique "brush and commutator" apparatus which sequentially and gradually increases the charging of the workpiece from ground potential to a predetermined desired level for electrostatic spray deposition in a spray zone and thereafter sequentially gradually decreases the charge on the workpiece to ground potential after exiting the spray zone.

Abstract translation: 这里公开了一种用于逐渐地将电绝缘的导电工件从地电势充电到高电位的方法和装置，同时工件由移动的接地输送机支撑。 输送机的一部分选择性地包括在具有高电压源和分压器的电路中，以将隔离的被输送的工件充电到相对于地面的高静电势。 高度充电的工件被输送通过分散处于电地电势的雾化颗粒（即液体或粉末）的接地喷雾装置。 根据众所周知的静电涂布原理，颗粒将被吸引到高潜力的工件部件上并附着在其上。 作为本发明的更具体的方面，通过独特的“电刷和换向器”装置将高电位施加到工件上，该设备依次逐渐地将工件的充电从地电位延伸到预定的期望水平，以便静电喷涂沉积在 喷雾区域，然后在离开喷射区之后逐渐地将工件上的电荷降低到地电势。

公开(公告)号：US3921575A

公开(公告)日：1975-11-25

申请号：US48070174

申请日：1974-06-19

Applicant: MITSUI SHIPBUILDING ENG

Inventor： ISHII YASUNORI ,  KANBESHIYAMA KAJIME ,  KARAKAWA KOUICHI ,  YAMADA AKIHARU

IPC: B05B5/08 ,  B05B13/02 ,  B05B15/04 ,  C03C17/00 ,  B05B7/14

CPC classification number: C03C17/00 ,  B05B13/0235 ,  B05B15/04

Abstract: Apparatus for coating the outer surface of bottles with resin film comprising a plurality of bottle holders each being adapted for holding the top and bottom of the bottle and for maintaining the bottle in a horizontal position, means for travelling and rotating the bottles about their axes as they are held by the bottle holders, and means for spraying the powdered material to the bottles as the latter are travelled and rotated.

Abstract translation: 用于涂覆瓶子的外表面的装置包括具有多个瓶保持器的树脂膜，每个瓶保持器适于保持瓶子的顶部和底部并且用于将瓶保持在水平位置，用于使瓶围绕其轴线行进和旋转的装置 它们被瓶子保持器，以及当粉末材料行进和旋转时将粉末材料喷洒到瓶子上的装置。

公开(公告)号：US3918401A

公开(公告)日：1975-11-11

申请号：US46169674

申请日：1974-04-17

Applicant: AMERICAN CAN CO

Inventor： BLAKESLEE HARRY NELSON

IPC: B05B5/08 ,  B05B7/14 ,  B05B15/04 ,  B05B5/02

CPC classification number: B05B15/0425 ,  B05B5/08 ,  B05B7/1486 ,  B05B15/0412 ,  Y02P70/36

Abstract: A method and apparatus for powdercoating surfaces of articles selectively whereby coating is obtained only on the desired surfaces while leaving other surfaces uncoated are provided. The invention is particularly adapted for the coating of container ends with powdered materials by applying the material selectively thereto and permitting recovery of the excessive material which is recovered and recycled to the system.

Abstract translation: 选择性地涂覆制品表面的方法和装置，其中提供仅在期望的表面上获得涂层，同时留下未涂覆的其它表面。 本发明特别适用于通过将材料选择性地施加到其上并且允许回收被回收并再循环到系统中的过量材料来用粉末材料涂覆容器端部。