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1. 发明专利

JP2000317355A POWDER COATING APPARATUS AND POWDER COATING METHOD FOR AUTOMOTIVE BODY 失效
公开(公告)号：JP2000317355A
公开(公告)日：2000-11-21
申请号：JP13284899
申请日：1999-05-13
申请人： NIHON PARKERIZING , TOYOTA MOTOR CORP , TRINITY IND CORP
发明人： HAJIMA MASAYUKI , YANAGIDA KENZO , NARUSE KAZUTAKE , YAMAUCHI SHIGEJI , HARA HIDEAKI , SAKURABA KOJI
IPC分类号： B05D1/06 , B05B5/025 , B05B13/02 , B05B13/04 , B05D7/14
摘要： PROBLEM TO BE SOLVED: To provide a powder coating apparatus and a powder coating method capable of improving the finishing appearance of coated face of an automotive body. SOLUTION: A carrier truck 13 supporting an automotive body 12 comprises a mounting stand 15 and a transporting mechanism 17 provided with wheels. The mounting stand 15 can mount an automotive body while slantingly keeping the whole object face of an automotive body to be coated in the horizontal direction. The inclination angle of the mounting stand is made changeable by a posture adjusting mechanism 16 comprising a hydraulic cylinder 18 and a cylinder rod 19. Coating robots 25 each comprising an arm 26 provided with an electrostatic powder coating gun 28 at the tip end are installed in both ends of the carrier truck 13.

2. 发明专利

JP2000254558A POWDER COATING MATERIAL SUPPLY APPARATUS 失效
公开(公告)号：JP2000254558A
公开(公告)日：2000-09-19
申请号：JP6631899
申请日：1999-03-12
申请人： NIHON PARKERIZING , TOYOTA MOTOR CORP
发明人： YAMAMOTO MASAHIRO , MORITA TADAO , MURAI HIROKI , NARUSE KAZUTAKE , YAMAUCHI SHIGEJI
IPC分类号： B65G51/00 , B05B7/04
摘要： PROBLEM TO BE SOLVED: To make powder coating possible to form a coating film with a stable coating pattern and a stable film thickness distribution even if the coating material spraying quantity is changed. SOLUTION: A control circuit 24 compares the supply quantity Qp of a powder coating material F measured by a powder flow rate measuring apparatus 9 with the set supply quantity Qm of the powder coating material F sent from a control panel 13 and controls the flow rate Qfm of main air by adjusting a pressure regulator 22 for main air corresponding to the excess or deficiency in relation to the set supply quantity Qm and at the same time controls a pressure regulator 23 for sub-air as to make the flow rate Qfs of sub-air equal to the difference between the carrier air flow rate Qt sent out of the control panel 13 and the flow rate Qfm of main air. Consequently, the flow rate Qt of carrier air, which is the total amount of the flow rate Qfm of main air and the flow rate Qfs of sub-air, can be controlled to be constant.

3. 发明专利

JP2003251230A ELECTROSTATIC POWDER COATING GUN 审中-公开
公开(公告)号：JP2003251230A
公开(公告)日：2003-09-09
申请号：JP2002051704
申请日：2002-02-27
申请人： NIHON PARKERIZING , TOYOTA MOTOR CORP
发明人： HAJIMA MASAYUKI , MORITA TADAO , SUZUKI TADASHI , NARUSE KAZUTAKE
IPC分类号： B05B7/10 , B05B5/025
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic coating gun capable of carrying out coating while suppressing the occurrence of spitting even when a fine particulate coating material is used. SOLUTION: Swirling flow is formed in a powder flow passage 2 by jetting mixed air into the powder flow passage 2 in the tangential direction from each mixed air jetting port 8 of a 1st jetting port group 6 and a 2nd jetting port group 7, and the powder paint advances while swirling and is charged by ions produced by corona discharge in the vicinity of a corona electrode and jetted forward from a circular nozzle opening 4. Dispersion air is jetted in the swirling direction of the swirling flow from a dispersion air jetting port 12 inside the nozzle opening 4, and control air is jetted obliquely forward in a way tilted in the swirling direction of the swirling flow from a control air jetting port 14 arranged and formed in the outer circumferential part of the nozzle opening 4. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2002355603A POWDER PAINT SUPPLY DEVICE AND METHOD 审中-公开
公开(公告)号：JP2002355603A
公开(公告)日：2002-12-10
申请号：JP2002041464
申请日：2002-02-19
申请人： NIHON PARKERIZING , TOYOTA MOTOR CORP
发明人： MORITA TADAO , MURAI HIROKI , HAJIMA MASAYUKI , NARUSE KAZUTAKE , SUZUKI TADASHI
IPC分类号： B05D1/12 , B05B7/14 , B05C19/06 , B05D3/00 , B05D7/24 , G05B19/00
摘要： PROBLEM TO BE SOLVED: To provide a powder paint supply device and method excellent in the response of the actual supply quantity of a powder paint to the set supply quantity thereof. SOLUTION: When the set supply quantity Qm of the powder paint F and a carrying air flow rate Qt are inputted (S1), it is judged whether the learning data of the suction air pressure Pfm in the inputted set supply quantity Qm is stored in a memory (S2) and, if it is stored, the learning data of the suction air pressure Pfm is read (S3) and a suction air pressure regulator is operated in a moment corresponding to the value of the read learning data (S4). Thereafter, the set supply quantity Qm is set as a target value to transfer to PID control (S5). The value of the suction air pressure Pfm at a time when the actual supply quantity becomes the set supply quantity Qm is stored in the memory as the learning data (S6).

5. 发明专利

JPH1057848A ELECTROSTATIC COATING APPARATUS 失效
公开(公告)号：JPH1057848A
公开(公告)日：1998-03-03
申请号：JP22213396
申请日：1996-08-23
申请人： TOYOTA MOTOR CORP
发明人： NARUSE KAZUTAKE , OISHI SHOGO
IPC分类号： B05B5/08
摘要： PROBLEM TO BE SOLVED: To reduce the adhesion of electrostatic coating particles to an electrostatic coating apparatus and its surroundings by a method in which the first and second electrodes which are charged in the same polarity with the charge of coating particles are provided, and the second electrode having a greater distance from the rotary axis of an atomizing head than the first electrode is fixed behind the front end of the first electrode. SOLUTION: Charged coating particles fly to the side of a substrate 7 by electrostatic force and the blasting force of shaping air. Part of the particles are attracted to an electrostatic coating apparatus 1 which is grounded and fly, to the side opposite to the substrate 7, backward from a needle-shaped electrode (the first electrode) 5. The particles, outside an area strongly affected by the action of the first electrode 5, try to fly behind the first electrode 5 place. However, since the flying particles are returned forward (substrate 7 side) by being repelled electrically by the second electrode of the same polarity installed backward which has a greater distance from the rotary axis 3 of an atomizing head 2 than the first electrode 5, the adhesion to an electrostatic apparatus 4 and its surroundings is checked.

6. 发明专利

JPH1043673A METHOD FOR FORMING COMPOSITE COATING FILM FOR AUTOMOBILE 失效
公开(公告)号：JPH1043673A
公开(公告)日：1998-02-17
申请号：JP22065596
申请日：1996-08-01
申请人： SHINTO PAINT CO LTD , TOYOTA MOTOR CORP
发明人： NARUSE KAZUTAKE , NAKASHIO MASAAKI , KAWASHIMA JIYUNKO
IPC分类号： B05D1/36 , B05D7/14 , B05D7/24
摘要： PROBLEM TO BE SOLVED: To provide a method having good quality in smoothness, rust prevention, coating work, etc., in a method for forming a composite coating film for automobiles. SOLUTION: In a method for forming a composite coating film for automobiles in which a cationic electrodeposition coating film is formed on a steel plate for automobiles using a cationic electrodeposition coating, and an intermediate coating film and a finishing coating film are formed on the electrodeposition on coating film, a cationic electrodeposition coating composition which contains a resin having cationic groups (base resin) A, block polyisocyanate (curing resin) B, and a water-insoluble component C which is added as required and in which each component of A, B, C is exclusively composed of components the specific gravity of which is 2.0 or less is used as the electrodeposition coating.

7. 发明专利

JP2004351372A Touch-up painting method and painting gun 有权
公开(公告)号：JP2004351372A
公开(公告)日：2004-12-16
申请号：JP2003154484
申请日：2003-05-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NARUSE KAZUTAKE , YAMAMOTO JUNYA , KOGA MIKIO , IMAI TAESHI
IPC分类号： B05D7/14 , B05B7/02 , B05D1/02
摘要： PROBLEM TO BE SOLVED: To provide a touch-up painting method and a painting gun capable of preventing an increase in the use amount of a painting material while applying skilful gradation.
SOLUTION: In the touch-up painting method, the direction of painting pattern is adjusted so that the longitudinal direction of an ellipsoidal paint pattern 10 sprayed from a painting gun becomes a direction intersecting the painting directions A
1 , A
2 , and the periphery of intermediate painting 2 is painted. By means of the technique, it is made possible to uniformize the rate of a decrease in the paint thickness in the end part of color base painting due to the ellipsoidal paint pattern 10. Accordingly, uniform gradation can be applied to the end part of color base painting 3 without intentionally spreading the painting range to the outside of the range of the intermediate painting 2 applied on a touch-up part. Further, by adding a process for perfoming clear painting without intentionally spreading the painting range to the outside of the range of the color base painting 3 in the clear painting process, the use amount of the clear paint material can be reduced.
COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JPH09195091A ELECTRODEPOSITION COATING METHOD 失效
公开(公告)号：JPH09195091A
公开(公告)日：1997-07-29
申请号：JP714996
申请日：1996-01-19
申请人： TOYOTA MOTOR CORP
发明人： NARUSE KAZUTAKE , YAMAMOTO TSUKASA , MURATA MITSURU , TSUCHIDA MASAAKI , KAKEMOTO YUKIHIRO
IPC分类号： C25D13/00 , C25D13/22
摘要： PROBLEM TO BE SOLVED: To suppress an increase in coating cost and to improve the throwing power to the interior surface of a bag structure in half-dipped coating by electrodeposition coating a completely-dipped material to be coated and further applying electrodeposition coating in a half-dipped state while increasing the electrode ratio. SOLUTION: A material to be coated is dipped in an electrodeposition soln. to the upper coating position in a first stage and coated. The material is then dipped in the soln. to the lower coating position lower than the upper coating position in a second stage and coated. In this case, the electrode ratio expressed by the area ratio of the electrode to the material is made larger in the second stage than in the first stage, and the impressed power is made greater in the second stage than in the first stage. Consequently, the necessary region is coated in a necessary thickness.

9. 发明专利

JPH09176895A ELECTRODEPOSITION COATING METHOD 失效
公开(公告)号：JPH09176895A
公开(公告)日：1997-07-08
申请号：JP33314495
申请日：1995-12-21
申请人： TOYOTA MOTOR CORP
发明人： NARUSE KAZUTAKE , YAMAMOTO TSUKASA , MURATA MITSURU , TSUCHIDA MASAAKI , KAKEMOTO YUKIHIRO
IPC分类号： C25D13/00
摘要： PROBLEM TO BE SOLVED: To prevent the unequal drying of the exposed surface at the time of half submerged coating by subjecting a material to be coated to electrodeposition coating while bringing a coating liquid into contact with this material in a second stage of half submerging the material into an electrolyte in two-stage coating consisting of full submergence and half submergence of the material to be coated. SOLUTION: An electrodeposition vessel 2 is formed of a two-stage structure consisting of a deep section 20 and a shallow section 21. A car body 1 which is the material to be coated is subjected to electrodeposition coating while this car body 1 is moved from the deep section 20 to the shallow section 21. The car body 1 is fully submerged in the electrolyte 3 in the deep section 20 and the car body 1 is half submerged in the electrolyte 3 in the shallow section 21. The car body 1 is electrodeposition-coated in the deep section 20 and is electrodeposition-coated in the shallow section 21 as well. The car body 1 is electrodeposition-coated while the coating liquid contg. an electrodeposition coating material is ejected from a spraying device 22 toward the upper part and draft part 11 thereof in the shallow section 21. The coating flows downward while wetting the entire surface of the coated surface in the upper part of the car body 1. Waving arises at the liquid surface of the electrodeposition liquid 3 in the draft part 11 by the coating liquid ejected toward the draft part 11. As a result, the occurrence of the unequal drying is prevented and the occurrence of the destruction of the coating film in the draft part 11 is prevented.

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