公开(公告)号：WO1997037769A1

公开(公告)日：1997-10-16

申请号：PCT/SE1996000445

申请日：1996-04-04

Applicant: NORDSON CORPORATION ,  RUUD, Jan

Inventor： NORDSON CORPORATION

IPC: B05B05/03

CPC classification number: B05B5/047 ,  B05B5/1683

Abstract: Apparatus for powder spray coating comprises means (4) for electrostatically-charging powder entrained in air, a conduit (106) for transporting the electrostatically charged powder from the charging means (4) to a spray head (108) adapted to discharge the powder in a hollow conical spray pattern, wherein the spray head (108) comprises means for diverting at least a portion of the flow of charged powder towards a spray device mounted to the spray head (108) and adapted to discharge powder in a substantially uniform conical spray pattern, the spray head (108), spray device and the hollow conical and conical spray patterns being substantially symmetrical about a common longitudinal axis. The apparatus is particularly suitable for coating a large surface area. Preferably multiple tribo-electric charging means (4) are used and a pump is used to supply powder to the multiple charging means the powder flows are then recombined and sprayed through a common spray apparatus. The apparatus may include multiple powder sources and means to change rapidly the powder being sprayed from one powder source to another.

Abstract translation: 用于粉末喷涂的装置包括用于静电填充夹带在空气中的粉末的装置（4），用于将静电荷粉末从充电装置（4）输送到适于将粉末排出的喷雾头（108）的导管（106） 中空圆锥形喷雾图案，其中喷头（108）包括用于将至少一部分带电粉末流转向安装到喷雾头（108）上的喷雾装置的装置，并适于将粉末以基本均匀的锥形喷雾 喷雾头（108），喷雾装置以及中空圆锥形和圆锥形喷射图案基本上围绕公共纵向轴线对称。 该装置特别适用于涂覆较大的表面积。 优选地，使用多个摩擦充电装置（4），并且使用泵将粉末供应到多个充电装置，然后通过普通喷雾装置将粉末流体重新组合并喷射。 该装置可以包括多个粉末源和快速地将从一个粉末源喷射的粉末改变到另一个粉末源的装置。

公开(公告)号：WO1996015057A1

公开(公告)日：1996-05-23

申请号：PCT/US1995014474

申请日：1995-11-07

Applicant: NORDSON CORPORATION ,  FORT, Wesley, C. ,  WUJCIK, Chris, D. ,  DODGE, Dennis, W. ,  BAKER, Lee, R.

Inventor： NORDSON CORPORATION

IPC: B65G53/24

CPC classification number: B28B13/021 ,  B29B13/022 ,  B29C31/02 ,  B29K2105/0097

Abstract: A feed system for conveying loose pieces of a coarse particulate or pelletized hot melt material such as adhesives from a storage container to a melt tank (16). The system includes a transition hopper (14) having insulation (83) between the hopper (14) and the melt tank (16) to prevent premature melting of the loose adhesive pellets or pieces before they pass into the melt tank (16). An air supply for providing air pressure to the interior of the hopper can be attached to the hopper to prevent vapors from rising from the hot melt tank into the transition hopper and a vent opening (91) for exhausting vapors from the hot melt tank (16) can be located in the top of the melt tank (16).

Abstract translation: 一种用于将粗颗粒或颗粒状热熔材料（例如粘合剂）的松散碎片从储存容器输送到熔体槽（16）的进料系统。 该系统包括在料斗（14）和熔体槽（16）之间具有绝缘（83）的过渡料斗（14），以防止松散粘合剂颗粒或碎片在它们进入熔体槽（16）之前过早熔化。 用于向料斗内部提供空气压力的空气供给装置可以附着在料斗上，以防止蒸气从热熔罐上升到过渡料斗;以及用于从热熔罐（16）排出蒸汽的通风口（91） ）可以位于熔体槽（16）的顶部。

公开(公告)号：WO1996009122A1

公开(公告)日：1996-03-28

申请号：PCT/US1995011308

申请日：1995-09-06

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  MULDER, Douglas, C.

IPC: B05B07/14

CPC classification number: B05B5/032 ,  B05B1/06 ,  B05B1/265 ,  B05B5/047 ,  B05B7/1454 ,  B05B7/1486 ,  B05B12/004 ,  B05B12/06 ,  B05B13/0242 ,  B05B13/0609 ,  B05B14/10 ,  B05B14/30 ,  B05B15/55 ,  Y02P70/36

Abstract: An apparatus (10) is operable to sequentially spray powder onto each workpiece (12) of a plurality of workpieces. The powder flows from an improved nozzle assembly (320) as a series of pulses. Accumulation of powder on surfaces (328 and 414) in the nozzle assembly (320) is retarded by conducting a flow of fluid (air) from a source of fluid pressure through openings in the surfaces in the nozzle assembly. Thus, a plurality of openings (366) are formed in a side wall (326) of the nozzle assembly to enable fluid to flow through the openings in the side wall into the flow path (344) of air and powder through the nozzle assembly (320) to retard accumulation of powder on an inner side surface (328) of the side wall. An inner deflector (332) has an end surface (414) which faces toward the workpiece (12) and on which powder tends to accumulate. A flow of fluid is conducted through openings in the end surface (414) of the inner deflector (332) to retard the accumulation of powder on the end surface of the inner deflector.

Abstract translation: 一种设备（10）可操作以将粉末依次喷洒到多个工件的每个工件（12）上。 粉末作为一系列脉冲从改进的喷嘴组件（320）流出。 通过从喷嘴组件的表面中的流体压力源通过开口导致流体（空气）的流动来阻止喷嘴组件（320）中的表面（328和414）上的粉末的积聚。 因此，多个开口（366）形成在喷嘴组件的侧壁（326）中，以使得流体能够流过侧壁中的开口通过喷嘴组件流入空气和粉末的流动路径（344） 320）以阻止粉末在侧壁的内侧表面（328）上的积聚。 内部偏转器（332）具有朝向工件（12）的端面（414），并且其上倾向于积聚粉末。 流体流动通过内导流器（332）的端表面（414）中的开口传导，以阻止粉末在内导流器的端表面上的积聚。

公开(公告)号：WO1994013405A1

公开(公告)日：1994-06-23

申请号：PCT/US1993012391

申请日：1993-12-16

Applicant: NORDSON CORPORATION ,  WATANABE, Takashi ,  MASUDA, Kenichi ,  KASAHARA, Shigeki ,  SAKURAZAWA, Masashi

Inventor： NORDSON CORPORATION

IPC: B05B07/14

CPC classification number: B05B5/1683 ,  B05B7/1404 ,  B05B15/25

Abstract: An improved method and apparatus (110) for air transport of powder particles includes a reverse flow nozzle (128) within a pump body (112) aimed at an inlet (120) which connects the pump body (112) to a fluidized powder hopper (114). In one aspect of the invention, during powder pumping caused by spraying pressurized air out of an ejector nozzle (122) in the pump body (112), reverse pulses from the reverse flow nozzle (128) are directed from the pump body (112) into the inlet (120) against the normal flow direction of the powder, thereby to prevent accumulation and adherence of powder within the inlet (120) and to assure uniformity in powder delivery per unit time to an article to be coated.

Abstract translation: 用于粉末颗粒的空气输送的改进的方法和设备（110）包括在泵体（112）内的反向流动喷嘴（128），其位于将泵体（112）连接到流化粉末料斗（120）的入口（120） 114）。 在本发明的一个方面，在通过从泵体（112）中的喷射器喷嘴（122）喷射加压空气而引起的粉末泵送期间，来自反向流动喷嘴（128）的反向脉冲从泵体（112）引导， 相对于粉末的正常流动方向进入入口（120），从而防止粉末在入口（120）内的积聚和粘附，并且确保每单位时间粉末输送到被涂物品的均匀性。

公开(公告)号：WO1991018137A1

公开(公告)日：1991-11-28

申请号：PCT/US1991003428

申请日：1991-05-16

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  MOLNAR, Julius, J. ,  FENA, Ernest, J. ,  FOLDEN, David, W. ,  SCHNEIDER, Douglas, A. ,  BECKER, Richard, A. ,  FIMMEN, Charles, L. ,  SELESTAK, David, M. ,  SHLAPAK, Robert

IPC: D04H01/04

CPC classification number: D04H1/54 ,  A61F13/15658 ,  A61F13/535

Abstract: A method and apparatus for forming a nonwoven pad (30) of fibrous material (28) is provided in which highly moisture-absorbent particles (36) and thermoplastic material are intermixed with the fibrous material throughout one or more predetermined portions of the thickness of the nonwoven pad while maintaining other portions of the thickness of the pad substantially free of highly moisture-absorbent particles and/or thermoplastic fiber material. The nonwoven pad is formed on one side of a conveyor (18) moving through a forming chamber (12) which has a duct (22) connected to a source of vacuum (24) operable to draw fibrous material injected into the chamber onto the conveyor. One dispenser (40) discharges the highly moisture-absorbent material at a predetermined location relative to the fibrous material being drawn onto the conveyor, and at least one other dispenser (56, 68, 83, 84) discharges the thermoplastic fiber material.

公开(公告)号：WO1991016141A1

公开(公告)日：1991-10-31

申请号：PCT/US1991002537

申请日：1991-04-12

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  SHUTIC, Jeffrey, R. ,  HOLLAND, Robert, J. ,  BARNETT, Phillip, R. +di ,  HOLLSTEIN, Thomas, E.

IPC: B05B15/12

CPC classification number: B05B16/25 ,  B05B14/43 ,  B05B14/435 ,  B05B14/45 ,  B05B16/90 ,  Y02P70/36 ,  Y10S55/46 ,  Y10S118/07

Abstract: A powder coating system particularly adapted for coating large objects such as automotive and other vehicle bodies comprises a spray booth having a manual/robotic spraying area for the application of powder to the inner door flanges and other hard to reach areas of the vehicle body using manually or rotatably operated powder dispensers, and an automatic spraying area wherein the remainder of the vehicle body is coated using automatically manipulated powder dispensers. A powder collection and recovery system is associated with the spray booth which includes removable cartridge filters arranged in V-shaped filter banks within powder collection chambers beneath the floor of the booth, a system for the transfer of powder collected in the powder collection chambers to hoppers located exteriorly of the booth and an air exhaust system for equalizing the negative pressure within clean air chambers which receive clean air after filtering by the cartridge filters.

公开(公告)号：WO1990014223A1

公开(公告)日：1990-11-29

申请号：PCT/US1990002048

申请日：1990-04-16

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  LADER, Harry, J. ,  REHMAN, William, R. ,  RICHARDS, Stephen ,  SAIDMAN, Laurence. B.

IPC: B32B07/14

CPC classification number: B05D1/26 ,  B05B7/0861 ,  B05C5/02 ,  B05D3/042

Abstract: A method of bonding in which water-based adhesives, i.e., aqueous polymeric dispersions or emulsions, are extruded from the discharge outlet (26) of a dispensing device (10) as a bead (12) which is impinged by air jets (14) directed at an angle and tangent to the periphery of the bead. The viscosity of the water-based adhesive, hydraulic pressure at which the adhesive is extruded from the dispensing device, diameter of the discharge outlet and pressure of the air jets are controlled such that the extruded bead is attenuated by the air jets to form an elongated, thin adhesive strand or fiber (16) which is deposited in a spiral pattern (31) on a first substrate (32) for subsequent bonding to a second substrate.

Abstract translation: 一种粘合方法，其中水性粘合剂，即水性聚合物分散体或乳液，从分配装置（10）的排放出口（26）挤出，作为被空气射流（14）冲击的珠子（12） 指向一个角度并与珠的周边相切。 水性粘合剂的粘度，粘合剂从分配装置挤出的液压，排出口的直径和空气射流的压力被控制，使得挤出的珠被空气射流减弱以形成细长的 ，薄的粘合剂链或纤维（16），其以螺旋形图案（31）沉积在第一基板（32）上，用于随后结合到第二基板。

公开(公告)号：WO1989003979A1

公开(公告)日：1989-05-05

申请号：PCT/US1988003759

申请日：1988-10-19

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  MILLER, Scott, R. ,  DUNN, Robert, A.

IPC: G01G13/00

CPC classification number: B29B13/022 ,  G01F23/20 ,  G01G17/04

Abstract: A thermoplastic melting apparatus (10) comprises a tank (18) pivotally mounted upon bearings (54) within the interior of a housing (12) having a top cover (22). An electrical (140), (142) or mechanical level indicator device (44) is mounted exteriorly of the tank (18) which is effective to sense pivotal movement of the tank (18) as it is loaded with and/or emptied of thermoplastic material (26), and to produce a signal which indicates the quantity of thermoplastic material (26) within the tank (18). The level indicator device (44) is isolated from dynamic forces produced by drive linkages (40) which operate pumps (32), (33) associated with the tank (18), by positioning the pivot axis (51) of the bearings (54) in the same plane as the force produced by the drive linkage (40). The lid (20) of the tank (18) is isolated from downward forces applied to the top cover (22) of the housing (12) to prevent the transmittal of forces to the level indicator devices from objects placed on the top cover (22) of the housing (12) or the like.

公开(公告)号：WO1989002318A1

公开(公告)日：1989-03-23

申请号：PCT/US1987002395

申请日：1987-09-18

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  MULDER, Douglas, C.

IPC: B05B07/14

CPC classification number: B05B7/1486

Abstract: A powder spray gun for spraying particulate powder, includes a gun body (12) having a venturi pump (34) which receives air-entrained particulate powder from a supply conduit (74) and a discharge conduit (88) connected to the gun body. A spray head (94) formed with a powder discharge slot (130) is mounted to the discharge conduit. The discharge conduit is formed with a bend, preferably of about 90°, to concentrate the powder material along an outer wall (118) of the bend for delivery of a concentrated stream to the spray head. A deflector (120) is mounted within the discharge conduit to direct the concentrated powder stream into the spray head in a predetermined manner. The powder discharge slot which is formed by angled side walls (110, 112) meeting at an apex (114), receives the concentrated powder stream form the discharge conduit and sprays the powder in a wide, uniform spray pattern onto a surface.

Abstract translation: 用于汽化粉末颗粒的喷枪包括具有文丘里泵（34）的枪体（12），该文丘里泵接收来自进料管（74）的空气夹带的粉末颗粒。 ）和连接到枪体的排放管道（88）。 设置有粉末排放槽（130）的蒸发器头（94）安装在排放导管上。 排放导管具有优选为大约90°的弯曲部，用于沿着弯曲部的外壁（118）浓缩粉末材料，以允许浓缩流被输送到喷头。 偏转器（120）安装在排放导管中以将浓缩粉末流以预定方式引导到喷头中。 由侧壁（110,112）形成一定角度并会聚在顶点（114）处的粉末排出槽接收来自排出导管的浓缩粉末流并将粉末蒸发到表面 以均匀和延长的汽化模式。

公开(公告)号：WO1989002317A1

公开(公告)日：1989-03-23

申请号：PCT/US1988002641

申请日：1988-08-02

Applicant: NORDSON CORPORATION

Inventor： NORDSON CORPORATION ,  SCHNEIDER, Douglas, A. ,  LEHKY, Robert ,  MULDER, Douglas, C. ,  WARD, Rodney, L.

IPC: B05B07/06

CPC classification number: B05B7/1486 ,  Y10S239/03

Abstract: A powder spray gun (10) comprises a tubular housing (12) having ambient air flow passages (40) located in the side wall thereof medially of the opposite ends. A pair of air flow amplifiers (14, 16) are mounted in the housing on opposite sides of the ambient air flow passages and are so oriented that compressed air supplied to the upstream one of these amplifiers, the so called suspension amplifier (14) is operable to draw ambient air into the outlet end of the suspension amplifier, and compressed air supplied to the downstream amplifier (16), the so called pattern amplifier, is operable to draw ambient air into the inlet end of the pattern amplifier (16). The amplifiers (14, 16) are secured within the housing by end caps (18, 20) which are sealingly secured onto the ends of the housing by bayonet pin and slot connectors (33).