WO2006132215A1 - Valve de régulation pneumatique et système d’enduction - Google Patents

Valve de régulation pneumatique et système d’enduction Download PDF

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Publication number
WO2006132215A1
WO2006132215A1 PCT/JP2006/311282 JP2006311282W WO2006132215A1 WO 2006132215 A1 WO2006132215 A1 WO 2006132215A1 JP 2006311282 W JP2006311282 W JP 2006311282W WO 2006132215 A1 WO2006132215 A1 WO 2006132215A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
valve
shaving
coating
valve portion
Prior art date
Application number
PCT/JP2006/311282
Other languages
English (en)
Japanese (ja)
Inventor
Takao Nomura
Shigeyoshi Inada
Shigeki Fujiwara
Takanobu Mori
Original Assignee
Trinity Industrial Corporation
Toyota Jidosha Kabusiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trinity Industrial Corporation, Toyota Jidosha Kabusiki Kaisha filed Critical Trinity Industrial Corporation
Publication of WO2006132215A1 publication Critical patent/WO2006132215A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1092—Means for supplying shaping gas

Definitions

  • the present invention relates to an air control valve that controls shaving air that suppresses the spread of spray paint, and a coating system using the same.
  • a rotary atomizing type coating machine capable of performing uniform and high-quality coating.
  • This coating machine is equipped with a rotary atomizing head, and when the rotary atomizing head rotates, the paint is atomized and the car body is painted. Further, in this coating machine, coating is performed with a desired coating pattern by discharging shaving air from the rear outside of the rotary atomizing head to suppress the spread of the spray paint. For this reason, in this coating machine, waste of paint is suppressed by improving the application efficiency of spray paint, and a uniform coating film is formed to improve paint quality.
  • this type of coating machine has been proposed that can supply two or more types of shaving different in different discharge directions (see, for example, Patent Document 1).
  • the coating pattern is changed by using either or both of the vortex flow discharged in a spiral shape and the conical air flow discharged in a conical surface shape as shaving air.
  • the pressure of the shaving air is controlled using, for example, an electro-Z pneumatic regulator having a throttle valve structure. Specifically, when using an electro-pneumatic regulator, the output pressure is detected by a pressure sensor, and feedback control is performed so that the output pressure corresponds to the input signal, so that the shaving air has a predetermined flow rate. Is done.
  • Patent Document 1 Japanese Patent Laid-Open No. 2002-224611
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide an air control valve and a coating system capable of quickly and accurately controlling the flow rate of shaving air. .
  • the flow passage cross-sectional area is changed based on the displacement of the first valve portion of the air control valve, and the total flow rate of air from the main flow passage is set. Further, the cross-sectional area of the flow path is changed based on the displacement of the second valve section, and the ratio of air distributed to the plurality of supply air flow paths (a ratio of 0% to 100%) is set. In this case, for example, two stages for changing the cross-sectional area of the air supply passage
  • the floor adjustment mechanism (the first valve part and the second valve part) can precisely switch the flow rate of the shaving according to the paint pattern.
  • the flow rate of the shaving air can be stabilized in a short period of time compared to the conventional case where the shaving air is controlled using the electro-pneumatic regulator. Therefore, when the air control valve of the present invention is applied to a coating machine, the coating efficiency and the coating quality can be improved.
  • the actuator is attached to the air control valve of claim 1, and the first valve portion and the second valve portion are driven by the actuator.
  • the total flow rate of air from the main flow path is set and the ratio of the air distributed to the plurality of supply air flow paths is set, and the shaving air pattern is appropriately changed.
  • the flow rate of the shaving air after the pattern change can be stabilized in a short time, realizing a coating system with excellent coating efficiency and coating quality. can do.
  • the air control valve and the actuator are arranged in the robot-mounted type coating machine.
  • the shaving air is formed into an appropriate pattern according to changes in the amount of paint supplied to the rotary atomizing head and the rotational speed of the rotary atomizing head. It is possible to switch the pattern instantly.
  • the invention according to claim 4 is characterized in that, in claim 2 or 3, the actuator is a control motor housed in an explosion-proof case.
  • FIG. 1 is a schematic configuration diagram of a coating system in the present embodiment.
  • the coating system 1 includes a coating machine 2, a paint supply device 3 for supplying paint, an air supply device 4 for supplying scavenging air, and a flow rate of the shaping water.
  • a valve unit 5 for setting and a control device 6 for controlling the paint supply device 3 and the valve unit 5 are provided.
  • the control device 6 is configured by a known computer including a CPU, a ROM, a RAM, an input / output circuit, and the like.
  • the control device 6 is electrically connected to the paint supply device 3 and the valve unit 5 and controls them by various control signals.
  • the coating machine 2 is a rotary atomizing type coating machine, and includes a rotary atomizing head 11 for atomizing organic solvent-based paint.
  • the rotary atomizing head 11 is provided at the tip of a rotary shaft 12 that is rotated by a rotary motor (an air motor built in the coating machine main body) (not shown).
  • the painting machine 2 of the present embodiment is a robot-mounted painting machine, which is fixed to the arm tip of a painting robot (not shown) When the painting robot drives the arm, the position and painting direction of the painting machine 2 are changed.
  • the paint supply device 3 includes a cylinder device that is filled with paint, a motor that drives the cylinder device, and the like, and discharges a predetermined amount of paint based on a control signal from the control device 6.
  • the paint supply device 3 is also mounted on the arm of the painting robot.
  • the paint discharged from the paint supply device 3 is supplied to the coating machine 2 through the paint pipe 14 and further rotated through a paint supply path (not shown) formed inside the coating machine 2. Supplied to atomizing head 11. Then, the paint is atomized by the centrifugal force applied to the rotating rotary atomizing head 11, and coating is performed.
  • the housing 15 on the leading end side of the coating machine 2 is provided with a plurality of discharge holes 16a and 16b for discharging shaving air.
  • the discharge holes 16a and 16b are formed on two concentric circles around the rotation shaft 12.
  • the inner discharge hole (first discharge hole) 16a is a straight hole formed linearly along the axial direction
  • the outer discharge hole (second discharge hole) 16b is inclined with respect to the axial direction. It is a torsion hole formed.
  • the housing 15 of the coating machine 2 is provided with two annular air supply chambers 17a and 17b, and a plurality of first discharge holes (first discharge hole group) 16a are The plurality of second discharge holes (second discharge hole group) 16b communicate with the inner air supply chamber 17a, and communicate with the outer air supply chamber 17b.
  • the inner air supply chamber 17a is connected to the valve unit 5 via the first air supply path 18a, and the outer air supply chamber 17b is connected to the valve boot 5 via the second air supply path 18b. Has been.
  • Each valve rotor 31, 32 has a hollow cylindrical shape, and slots 41, 42 having a predetermined shape for allowing air to pass therethrough are formed on the side walls thereof.
  • a region where the slot 41 is formed in the first valve rotor 31 corresponds to the first valve portion, and a region where the slot 42 is formed in the second valve rotor 32 corresponds to the second valve portion.
  • an opening is provided on the tip side of each valve rotor 31, 32, and these openings communicate with each other through an air passage 44 formed on the body 35 side. That is, in the air control valve 26, the air supplied from the air supply port X flows in the order of the first valve rotor 31 ⁇ the air passage 44 ⁇ the second valve rotor 32, and the exhaust gas is exhausted. Ports A and B are discharged.
  • the flow passage cross-sectional area is changed based on the rotational position of the first valve rotor 31, and the total flow rate of the shaving air is set.
  • the flow path cross-sectional area is changed based on the rotational position of the second valve rotor 32, and the ratio of the air distributed to the two supply air flow paths 18a and 18b is set.
  • FIG. 4 is a valve development view showing a state in which the outer peripheral surface of each valve rotor 31 is developed in the rotational direction.
  • through holes 38, 39a, 39b on the body 35 side are also shown in the slots 41, 42 of the valve rotors 31, 32.
  • the slot 41 of the first valve rotor 31 is formed so as to gradually increase in width along the rotor rotation direction.
  • the cross-sectional area (channel cross-sectional area) of the slot 41 connected to the through-hole 38 on the air supply port X side gradually changes according to the rotational position of the first valve rotor 31.
  • the flow rate of shaving air can be set in the range of 0% to 100% according to the cross-sectional area.
  • the second valve rotor 32 includes a slot (slot provided on the left side in the drawing) 42a connected to the first exhaust port A and a second exhaust port.
  • a plurality of slots (slots provided on the right side in the figure) 42b connected to B are provided. Then, according to the rotational position of the second valve port 32, the combination of the slots 42a and 42b connected to the through holes 39a and 39b on the exhaust port side is changed. In other words, depending on the rotational position, the ratio force for distributing air to the first exhaust port A and the second exhaust port B is set to 0: 100, 50:50, 100: 0! Come on! /
  • the first valve rotor 31 and the second valve rotor 32 rotate in conjunction with each other by the rotation of the common actuator 27. For this reason, the second valve rotor 32 rotates the first rotational position force stepwise to the seventh rotational position. In this case, the first valve rotor 31 rotates in the same manner, and the total flow rate of air controlled by the first valve rotor 31 gradually increases in accordance with the rotation.
  • the rotational positions of the first and second valve rotors 31 and 32 by controlling the rotational positions of the first and second valve rotors 31 and 32, the total flow rate of the shaving air is changed by the first valve rotor 31 and the second valve rotor 32 The combination of shaving air is changed.
  • different shaving air patterns can be set at each rotational position, and painting can be performed with different painting patterns.
  • coating patterns P1 to P7 corresponding to the first to seventh rotational positions are shown in order from the left side.
  • the coating system 1 of the present embodiment it is possible to perform coating by switching the shaving air to a desired pattern according to the coating conditions such as the type of coating material, the shape of the object to be coated, and the distance. .
  • the flow rate of the shaving air is accurately switched according to the coating pattern by using a two-stage adjustment mechanism that changes the cross-sectional area of the air supply passage. Can do. Further, by using this air control valve 26, the flow rate of the shaving air can be instantly stabilized, so that the coating efficiency and coating quality of the coating machine 2 can be improved.
  • the first valve rotor 31 and the second valve rotor 32 can be linked and driven by the common actuator 27, and the pattern change is more accurately and highly reproduced. Can be done by sex.
  • the common actuator 27 since only one actuator 27 is required, a low-cost, compact and lightweight coating system 1 can be realized.
  • the actuator 27 is a servo motor, so that each valve port 31, 32 can be accurately rotated.
  • the servo motor, which is the actuator 27, is housed in the explosion-proof case 51. 51 External environmental forces can also be isolated. Therefore, it can be used as a suitable valve unit 5 in the coating system 1 using an organic solvent-based paint.
  • FIG. 6 shows a valve development view of valve rotors 61 and 62 according to another embodiment.
  • the slot 63 of the first valve rotor 61 is formed so that its width gradually decreases along the rotor rotation direction.
  • the second valve rotor 62 is connected to a slot (a slot provided on the left side in the figure) 64a connected to the first exhaust port A and to the second exhaust port B.
  • One slot (slot provided on the right side in the figure) 64b is provided.
  • the slot 64a connected to the first exhaust port A is formed so as to gradually increase in width along the rotor rotation direction, and the slot 64b connected to the second exhaust port B is gradually opposite to the slot 64a. It is formed to be narrow. Even with this configuration, the total flow rate of each shaving air can be set according to the rotational position of the first valve rotor 61. Further, the ratio of the air distributed to the two air supply passages can be set according to the rotational position of the second valve port 62.
  • the force used to rotate the first and second valve rotors 31, 32 by the common actuator 27 is not limited to this.
  • the first and second valve rotors VI and V2 may be rotated by separate servo motors M1 and M2.
  • the shaving air flowing through each of the air supply paths 18a and 18b via the first exhaust port A and the second exhaust port B can be set to an arbitrary flow rate, and painting can be performed with a desired coating pattern. It can be carried out.
  • the first valve motor 31 for setting the total air flow rate and the second valve motor 32 for setting the air distribution ratio may be housed in a common body as in the first embodiment, but may be separately provided. May be housed in the body. In other words, the first valve body function and the second valve body function may be configured to be carried by different valves! /.
  • the force used to control the flow rate of each shaving air using the two valve rotors 31, 32 is not limited to this.
  • the flow rate of each shaving air can be controlled by using one valve rotor 71.
  • the vano rotator 71 has one slot (slot provided on the left side in the figure) 72 connected to the first air port A and two slots (slots provided on the right side in the figure) connected to the second exhaust port B. 73, 74 are provided.
  • the slot 72 on the exhaust port A side is formed so as to gradually increase in width from the upper side toward the lower side, and the width on the lower side from the one-dot chain line is formed so as to gradually decrease in the downward direction.
  • the valve body of the air control valve 26 is not limited to the valve rotors 31, 32, 61, 62, 71 that are rotationally driven, but may be a valve body that reciprocates in the axial direction. . In other words, if it is an air control valve that can change the cross-sectional area of the air supply passage based on the displacement of the valve body!
  • 'Painting system 1 of the above embodiment discharges two types of shaving air with different discharge directions. However, it should be specified as a system that discharges three or more types of shaving air.
  • an organic solvent-based paint is used, but an aqueous paint containing no organic solvent may be used.
  • the actuator 27 needs to be stored in the explosion-proof case 51.
  • the actuator 27 does not need to be stored in the explosion-proof case 51.
  • the coating machine is a robot-mounted type, and the air control valve and the actuator are arranged in the robot-mounted type coating machine.
  • a painting system characterized by
  • valve body is a hollow cylindrical valve rotor having a predetermined pattern slot formed in a side wall thereof and driven to rotate with respect to the body, and the valve rotor
  • the coating system is characterized in that the cross-sectional area of the flow path is changed according to the rotational position.
  • the air control valve is distributed to the Further, an air control valve characterized in that a ratio of air distributed to the plurality of air supply passages can be set.
  • FIG. 1 is a schematic configuration diagram illustrating a coating system according to an embodiment embodying the present invention.
  • FIG. 2 is an explanatory view showing a layout of discharge holes for shaving air.
  • FIG. 3 is a cross-sectional view showing a valve unit and an actuator.
  • FIG. 5 is an explanatory diagram showing each coating pattern.
  • FIG. 6 (a) and (b) are valve development views showing a valve rotor of another embodiment.
  • FIG. 8 is a valve development view showing a noble rotor of another embodiment.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Taps Or Cocks (AREA)
  • Multiple-Way Valves (AREA)
  • Nozzles (AREA)

Abstract

L’invention concerne une valve de régulation pneumatique (26) capable de réguler avec précision et rapidement l’écoulement d’un air de conformage pour supprimer l’étalement d’une peinture pulvérisée lorsqu’une machine d’enduction (2) comprend deux systèmes de passages d’arrivée d’air (18a, 18b) pour injecter l’air de conformage, englobant une première partie de valve et une seconde partie de valve. L’écoulement total de l’air depuis un passage d’écoulement principal (24) se définit en changeant la zone de coupe transversale du passage d’écoulement sur la base du déplacement de la première partie de valve, et le rapport de l’air distribué vers les deux systèmes de passages d’arrivée d’air (18a, 18b) se définit en changeant la zone de coupe transversale du passage d’écoulement sur la base du déplacement de la seconde partie de valve.
PCT/JP2006/311282 2005-06-06 2006-06-06 Valve de régulation pneumatique et système d’enduction WO2006132215A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005166266A JP4843257B2 (ja) 2005-06-06 2005-06-06 エア制御弁、及び塗装システム
JP2005-166266 2005-06-06

Publications (1)

Publication Number Publication Date
WO2006132215A1 true WO2006132215A1 (fr) 2006-12-14

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WO (1) WO2006132215A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015522764A (ja) * 2012-05-15 2015-08-06 ヴァレオ システム ドゥ コントロール モトゥール 流体循環バルブ

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2939056B1 (fr) * 2008-12-02 2011-01-07 Sames Technologies Projecteur de produit de revetement
JP2012115736A (ja) * 2010-11-29 2012-06-21 Toyota Motor Corp 回転霧化塗装装置および回転霧化塗装装置による塗装方法
JP5689762B2 (ja) * 2011-07-15 2015-03-25 東海旅客鉄道株式会社 スプリンクラー
JP6277303B1 (ja) * 2017-05-09 2018-02-07 長瀬産業株式会社 塗装装置
JP7420458B2 (ja) 2020-03-30 2024-01-23 トリニティ工業株式会社 塗料カートリッジの個体識別システム
KR102490048B1 (ko) * 2022-08-16 2023-01-20 (주)일신오토클레이브 서보 제어형 랙피니언 타입 고압 분산기
KR102491123B1 (ko) * 2022-08-25 2023-01-27 (주)일신오토클레이브 서보 제어형 고압 분산기용 동력변환장치 및 서보 제어형 캠 타입 고압 분산기

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JPS62106654U (fr) * 1985-12-26 1987-07-08
JPH01249148A (ja) * 1988-03-30 1989-10-04 Nissan Motor Co Ltd 回転霧化式静電塗装機の塗布パターン制御方法
JPH0899052A (ja) * 1994-09-29 1996-04-16 Abb Ransburg Kk 回転霧化頭型塗装装置
JP2000070769A (ja) * 1998-08-28 2000-03-07 Toyota Motor Corp 回転霧化塗装機および回転霧化塗装方法

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JPS548154A (en) * 1977-06-22 1979-01-22 Daiichi Koshuha Kogyo Kk Method and apparatus for compression bending of metal band material
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JP3254828B2 (ja) * 1993-07-12 2002-02-12 トヨタ自動車株式会社 回転霧化静電塗装方法およびその装置
WO2004085820A1 (fr) * 2003-03-28 2004-10-07 Microgen Energy Limited Systeme thermique et electrique combine

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Publication number Priority date Publication date Assignee Title
JPS62106654U (fr) * 1985-12-26 1987-07-08
JPH01249148A (ja) * 1988-03-30 1989-10-04 Nissan Motor Co Ltd 回転霧化式静電塗装機の塗布パターン制御方法
JPH0899052A (ja) * 1994-09-29 1996-04-16 Abb Ransburg Kk 回転霧化頭型塗装装置
JP2000070769A (ja) * 1998-08-28 2000-03-07 Toyota Motor Corp 回転霧化塗装機および回転霧化塗装方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015522764A (ja) * 2012-05-15 2015-08-06 ヴァレオ システム ドゥ コントロール モトゥール 流体循環バルブ

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JP2006334577A (ja) 2006-12-14
JP4843257B2 (ja) 2011-12-21

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