• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. INSTALLATION FOR ELECTRO STATIC SPRAYING COATINGS ON THE PRODUCT, comprising a successively installed primer coating chamber with a spraying module and air filtration modules located on both sides of the spraying module, and a coating layer of the finishing layer with the spraying module having electrostatic powder sprayers, and air filtration modules on both sides of the spraying module, characterized in that, in order to improve the quality of the coatings, the spraying module of the application chamber the primer layer is made in the form of a compartment for pre-spraying the powder, at both ends of which there are interconnecting ionization compartments — for applying the pre-sprayed powder to the product, and the spraying module of the finishing layer application chamber has two successive compartments for powder, and ionization compartment at the entrance. You are about it. 5 Pui.i b 7 e
    公开号:SU1120919A3
    申请号:SU813340591
    申请日:1981-06-11
    公开日:1984-10-23
    发明作者:Жернез Ален
    申请人:Компани Эропеен Пер Лъэкипман Менажер,"Сепем" (Фирма)；
    IPC主号:
    专利说明:

    2. The installation according to claim 1, characterized in that the sputtering unit of the application chamber, the finishing layer is provided with an ionization compartment at the exit.
    3. Installation on PP. 1 4 2, characterized in that the compartments of the spraying module of the coating application chamber are made adjacent,
    4. Installation on PP. 1 to 3, in contrast to the fact that an additional ionization compartment is installed between the compartments of the spraying module of the application chamber of the separating layer.
    This invention relates to the technique of electrostatic application to a product of at least two overlapping coating layers with different characteristics depending on the properties of the applied powder material.
    A known device for electrostatic coating of a product onto a product, comprising a sequentially installed camera for applying a primer layer with a spraying module and air filtration modules located on both sides of the spraying module, and a coating layer of a finishing layer with a pulverization module having powder electrostatic diffusers and modules air filtration on both sides of the spraying module l,
    However, the technology of multi-layer coating of various materials using a known installation requires that the first primer layer is very thin (about 20 µm), uniform and has a slight electrostatic charge, which is practically impossible due to the intensive process of electrostatic spraying and powder deposition. This usually requires the use of an -mechanical device for the vertical reciprocating motion of the spray gun,
    In addition, the finishing layer must not be contaminated with a primer having a completely different chemical composition. However, in a known installation in the application chamber of the finishing layer, a jet of finishing powder separates the primer layer. Since the recycled powder applied
    is complete, then the finishing layer is contaminated,
    The aim of the invention is to improve the quality of the coating,
    This goal is achieved by installing an electrostatic spraying unit on a product containing a sequentially installed primer coating layer with a spraying module and air filtration modules located on both sides of the spraying module, and a finishing layer coating chamber with an atomization module having electrostatic diffusers powder, and air filtration modules on both sides of the sputtering module, the spraying module of the primer coating chamber not in the form of a compartment for pre-spraying the powder, on both ends of which there are ionizing compartments communicating with it for applying the pre-dispersed powder on the product, and the atomization module of the finishing layer chamber is made up of two successive compartments with separate tanks for powder, and the ionization compartment at the entrance.
    The pulverization module of the finishing layer chamber is provided with an ionization compartment at the exit.
    The compartments of the spraying module of the application chamber of the finishing layer are filled with adjacent ones.
    An additional ionization compartment is installed between the compartments of the spraying module of the coating layer of the finishing layer.
    Fig. 1 shows an installation with a camera for applying a primer-1 layer 3 and a camera for applying a finishing layer, a general view; Fig. 2 shows a finishing layer chamber, a front section view; Fig. 3 shows a plan for applying a finishing layer in plan, a section; 4 shows a coating application chamber, a partial section; in FIG. 5, node I in FIG. 2; figure 6 section aa in figure 5. The electrostatic coating installation comprises a suspension with product 1 moving along a conveyor 2, a primer coating chamber including a filtration module 3, an atomization module 4, a filtration module 5 and a finishing layer application chamber including a filtration module 6, an atomization module 7, a filtration module 8. The module 7 for spraying the camera on the carrying layer of the finishing layer contains compartments 10 and 11 separated by a partition 9, equipped with electrostatic sprays 12 mounted on pipes 13 and capturing powder from tanks 14 and 15 equipped with a fluidizing element 16. The compartments 10 and 11 are located between two ionization compartments 17 and 18, formed by walls 19, 20 and 21, 22, respectively. The ionization compartments communicate with the pulverization module 7 by means of the central passage 23 and contain ionizing elements 24 made of insulating pipes mounted vertically and provided with ionization rods 25 installed with a gap in the holes of the pipes. The rods are fixed in the walls of the pipes opposite to the holes and directed to the center of the ionization compartments perpendicular to the axis of movement of the products. The rods are electrically connected to a high voltage source (not shown) and are arranged along a pipe 10-100m across the entire height of the pipe. The insulation pipe is closed at one end by an insulating plug through which the high voltage lead wire passes, and the other end connected to a compressed air supply system (not shown). Each ionization compartment is equipped with a sieve 26 containing a metal mesh glued to the metal frame; e 27 connected via coal 28 to a pneumatic vibrating valve 29. The elastic suspension of the sieve is provided with rubber 194 ribbons 30, which also provide tightness to prevent powder leakage. Rubber tapes are fixed between the squares 31, which can slide into the x 32 profiles that hold the powder, which allows the cleaning screens to be removed by pulling them through the doors in the compartment walls. Separating the metal particles and transporting the powder to the tanks 14 and 15, which form the bottom of the spraying module, is provided by an inclined metal sheet 33, which is vibrated from the pneumatic vibrator 29, and provided with parallel magnetized ribbons 34 mounted on the rubber and glued to the sheet 33 at intervals that allow the magnetized particles to accumulate between the screen cleanings. The two compartments 10 and 11 of the electrostatic spraying module 7 can be separated by an ionization compartment communicating with them, formed by partitions 35 and 36. The powder spraying modules 4 and 7 are located respectively between the filtration modules 3, 5 and 6, 8 containing four vertical cylindrical filters 37 and equipped with fans 38, which provide suction of the aerosol through the filters, at the base of which a fluidizing element 39 is mounted, which makes it possible to catch the powder falling from the filters and return it to the reservoir 14 and 15. The primer coating chamber is structurally different from the finishing coating chamber only by the absence of a partition 9 in the powder pulverization unit or by separating it into two parts with an ionization compartment formed by partitions 35 and 36. The installation works as follows. In the first chamber, in which the OS primer layer is applied, the powder is sprayed by means of diffusers 12 without applying an electrostatic field. In this case, the powder is deposited in the ionization compartments, located on one and the other side of the pulverization module 4, from a powder cloud. As a result, a very thin powder powder deposit with a thickness of about 20-30 microns is deposited on the product. I 1 in the chamber where the top finishing layer is sprayed, in the electrostatic spraying module 7, electrostatic spraying occurs and, as a result, the powder is deposited on the product. However, not all of the powder is deposited on the product, part of it penetrates, in the form of a cloud, into one and another part of the compartments .10 and 11 of module 7, in particular, into the ionization compartment 17, located in front of the compartment 10, where electrostatic precipitation also occurs. This electrostatic deposition in the ionization compartment, preceding the electrostatic atomization compartment, ensures that a very thin layer of powder is deposited on the product, which makes it possible to obtain a high-quality coating without contaminating the finishing layer with ReallyJ if the product with the applied primer layer was placed in an electrostatic atomization compartment 10 without prior electrostatic deposition in the ionization compartment 17, preceding the electrostatic atomization compartment 10, partial Duvanny undercoating layer under the action raspshiteley 12, which pref lo b to weathering and the undercoating layer; in addition, the sludge collected in tanks 14 and 15, which is subject to recirculation, would be contaminated. If the coating layer of the finishing layer contains the ionization compartment 18 following electrostatic spraying compartment 11, then the deposition of the finishing layer powder is completed, and the powdery cloud eliminates contamination of the filtration system5 installed in the outlet of this compartment In the chamber where the deposition of the finishing layer 96 powder the pulverization module is divided by a partition 9 into two compartments 10 and 11 in order to obtain an upper layer of improved quality, however, and in this case in the pulverization compartment 10 a part the powder of the primer layer can be blown out despite the coating applied in the ionization compartment 17 preceding compartment 10 and contaminate the powder of the upper layer. In this case the installation of the ionization compartment formed by partitions 35 and 36 prevents the powder from separating from the primer layer and, therefore, contamination of the powder of the upper layer. During the operation of the powder splitters 12, the ionizing rods 25 receive a high electric potential G, and compressed air is supplied to the pipe 13, which, coming out of the holes around the rods, prevents powder from depositing on them. In compartment 11, the air flow rate exceeds the flow rate in compartment 10, which is accomplished by increased air pressure in the sprayers, or by using additional supply of compressed air to compartment 11 The powder not settled on the product is sieved with the help of sieve 26; the separation of the ferrous impurities with magnetized ribbons 34 is also ensured. The powder purified from the ferrous impurities is collected in two tanks 14 and 15, which allows the contaminated powder of the pulverization compartment 10 not to be mixed with the neat powder of the pulverization compartment 11. Thus, the proposed installation can be successfully used in technological processes involving the application of multilayer coatings of materials with different properties, providing high decorative, and protective properties of the applied coating.
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    权利要求:
    Claims (4)
    [1]
    1. INSTALLATION FOR ELECTROSTATIC SPRAYING OF COATINGS ON
    PRODUCTS containing a Sequentially installed chamber for applying a primer layer with a spray module and air filtration modules located on both sides of the spray module, and a camera for applying a finishing layer with a spray module having electrostatic powder sprayers, and air filtration modules on both sides of the spray module the fact that, in order to improve the quality of coatings, the spray module of the primer application chamber is made in the form of a compartment for preliminary powder spraying, on both ends of which there are ionization compartments communicating with it · for applying pre-sprayed powder to the product, and the spray module of the coating layer deposition chamber is made up of two successively arranged compartments having separate powder tanks and an ionization compartment at the inlet .
    [2]
    2. Installation according to π. 1, characterized in that the spray module of the application chamber, of the finishing layer is provided with an ionization compartment at the outlet.
    [3]
    3. Installation according to paragraphs. 1 μι 2, characterized in that the compartments of the atomization module of the spray coating chamber are adjacent.
    [4]
    4. Installation according to paragraphs. 1-3, characterized in that an additional ionization compartment is installed between the compartments of the spray module of the application chamber of the finishing layer.
    类似技术:
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    SU904507A3|1982-02-07|Unit for electrostatic coating with powdered materials
    US2486877A|1949-11-01|Overspray recovery for spray booths
    SU886727A3|1981-11-30|Unit for electrostatic spray-coating of articles
    US4409009A|1983-10-11|Powder spray booth
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    US3944404A|1976-03-16|Powder reclamation device for electrostatic powder coating systems
    US3921576A|1975-11-25|Spray booth
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    US6245391B1|2001-06-12|Powder fluidized bed and coating method utilizing a circulating powder stream
    DK169053B1|1994-08-08|Apparatus for continuous electrostatic application of powder, especially dextrose, on a bread surface
    EP0119298B1|1986-09-24|Process and device to eliminate paint particles from the air exhaust of spray paint plants
    同族专利:
    公开号 | 公开日
    AR226730A1|1982-08-13|
    ES502998A0|1982-04-01|
    NO811974L|1981-12-14|
    BR8103756A|1982-03-02|
    EP0042111A1|1981-12-23|
    US4376136A|1983-03-08|
    YU137381A|1983-10-31|
    JPS5727174A|1982-02-13|
    FR2484291A1|1981-12-18|
    US4454832A|1984-06-19|
    GR74934B|1984-07-12|
    ES8203649A1|1982-04-01|
    DE3167167D1|1984-12-20|
    EP0042111B1|1984-11-14|
    FR2484291B1|1984-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1735494A|1925-02-12|1929-11-12|Chapman Electric Neutralizer C|Neutralizer bar|
    US2795512A|1953-08-28|1957-06-11|Gen Electric|Electrostatic method and apparatus for lining molds|
    FR1337469A|1962-08-03|1963-09-13|Sames Mach Electrostat|Automatic powder coating device in the cabin, or closed enclosure|
    FR1532144A|1966-07-29|1968-07-05|Sfb Spezial Filterbau M Ofner|Method and device for electrostatic surface coating with powdered materials|
    GB1413964A|1972-01-24|1975-11-12|Volstatic Coatings Ltd|Electrostatic coating|
    FR2182403A5|1972-04-27|1973-12-07|Air Ind|
    FR2300625B1|1975-02-13|1977-07-22|Air Ind|
    FR2360356B1|1975-11-24|1978-12-29|Air Ind|
    FR2332809B1|1975-11-26|1978-04-14|Air Ind|
    GB1530508A|1976-05-27|1978-11-01|Volstatic Coatings Ltd|Electrostatic coating equipment|
    FR2358933A1|1976-07-23|1978-02-17|Air Ind|System for application of electrostatic coatings - has base and top coat powder layers applied to article before heat application |
    FR2467022B2|1978-11-21|1984-03-02|Europ Equip Menager|
    FR2442080B1|1978-11-21|1982-11-26|Europ Equip Menager|US4723505A|1986-03-17|1988-02-09|Nordson Corporation|Powder booth|
    US4704953A|1986-11-12|1987-11-10|Nordson Corporation|Powder spray system|
    DE4017362A1|1989-12-23|1991-06-27|Columbus System Patent Ag|METHOD FOR PRE-TREATING SHEET|
    DE4013063C1|1990-04-24|1992-01-02|Metri Airfluid Ag, Altstaetten, Ch|
    US5454872A|1993-07-28|1995-10-03|Nordson Corporation|System for controlling and utilizing finer powder particles in a powder coating operation|
    US7017208B2|1995-08-04|2006-03-28|Hill-Rom Services, Inc.|Hospital bed|
    DE4447818C2|1994-12-22|2003-11-06|Eisenmann Kg Maschbau|Process for powder coating and painting system for carrying out the process|
    US5891524A|1995-05-25|1999-04-06|American Standard Inc.|Overspray recycling process|
    US6099898A|1998-03-20|2000-08-08|Haden, Inc.|Method for applying powder paint|
    US6968637B1|2002-03-06|2005-11-29|Nike, Inc.|Sole-mounted footwear stability system|
    US20080191378A1|2007-02-14|2008-08-14|Brian Paul|Microsphere reinforcement of composite materials|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8013161A|FR2484291B1|1980-06-13|1980-06-13|
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