WO2021085501A1 - 塗装装置および払拭方法 - Google Patents
塗装装置および払拭方法 Download PDFInfo
- Publication number
- WO2021085501A1 WO2021085501A1 PCT/JP2020/040510 JP2020040510W WO2021085501A1 WO 2021085501 A1 WO2021085501 A1 WO 2021085501A1 JP 2020040510 W JP2020040510 W JP 2020040510W WO 2021085501 A1 WO2021085501 A1 WO 2021085501A1
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- WIPO (PCT)
- Prior art keywords
- head
- nozzle surface
- wiping
- wiper
- wiping mechanism
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2/16538—Cleaning of print head nozzles using wiping constructions with brushes or wiper blades perpendicular to the nozzle plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/002—Machines or plants for applying coating liquids or other fluent materials by inkjet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/005—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 mounted on vehicles or designed to apply a liquid on a very large surface, e.g. on the road, on the surface of large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0405—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
- B05B13/041—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to three-dimensional [3D] surfaces
- B05B13/0433—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to three-dimensional [3D] surfaces the work being vehicle components, e.g. vehicle bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
- B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the objects being vehicle components, e.g. vehicle bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
- B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/0075—Manipulators for painting or coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2/16544—Constructions for the positioning of wipers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties
- B41J2/2114—Ejecting specialized liquids, e.g. transparent or processing liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2002/1655—Cleaning of print head nozzles using wiping constructions with wiping surface parallel with nozzle plate and mounted on reels, e.g. cleaning ribbon cassettes
Definitions
- the disclosed embodiment relates to a coating device and a wiping method.
- a painting device using an inkjet method is known.
- Such an inkjet coating apparatus is equipped with a head for ejecting a coating material and a wiper for removing the coating material adhering to the head.
- the coating apparatus operates so as to wipe one side of the head that discharges the coating material by a dedicated mechanism for moving the wiper, and removes the coating material adhering to the head.
- the coating device includes a head, a wiping mechanism, an arm, and a control unit.
- the head has a nozzle surface for discharging the coating material.
- the wiping mechanism wipes the nozzle surface.
- the arm holds the head.
- the control unit controls the movement of the head via the arm.
- the control unit causes the wiping mechanism to wipe the nozzle surface by relatively moving the head.
- FIG. 1 is an explanatory diagram of a coating apparatus according to an embodiment.
- FIG. 2 is a cross-sectional view showing an example of a painted object to be painted.
- FIG. 3 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the first embodiment.
- FIG. 4 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the second embodiment.
- FIG. 5 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the second embodiment.
- FIG. 6 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the third embodiment.
- FIG. 1 is an explanatory diagram of a coating apparatus according to an embodiment.
- FIG. 2 is a cross-sectional view showing an example of a painted object to be painted.
- FIG. 3 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according
- FIG. 7 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the third embodiment.
- FIG. 8 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the fourth embodiment.
- FIG. 9 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the fourth embodiment.
- FIG. 10 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the fifth embodiment.
- FIG. 11 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the sixth embodiment.
- FIG. 12 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the seventh embodiment.
- FIG. 13 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the seventh embodiment.
- FIG. 14 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the eighth embodiment.
- FIG. 15 is an explanatory view of the coating apparatus according to the first modification of the embodiment.
- FIG. 16 is an explanatory view of a coating apparatus according to a second modification of the embodiment.
- FIG. 17 is an explanatory view of the wiping unit shown in FIG.
- FIG. 1 is an explanatory diagram of a coating apparatus according to an embodiment.
- FIG. 1 illustrates a three-dimensional Cartesian coordinate system including a Z-axis having a vertically upward direction as a positive direction and a vertically downward direction as a negative direction.
- Such a Cartesian coordinate system may also be shown in other drawings used in the description below.
- the same components as those of the coating apparatus 1 shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted or simplified.
- the painting device 1 includes a head 10, a wiper 14, a robot 20, and a control device 40.
- the head 10 is fixed to the robot 20.
- the head 10 moves according to the operation of the robot 20 controlled by the control device 40.
- the head 10 paints the object to be coated 30 by landing the coating material ejected from the plurality of ejection holes 11 located on the nozzle surface 12 on the surface of the object to be coated 30 facing the nozzle surface 12.
- a coating material is supplied to the head 10 from a tank (not shown).
- the head 10 discharges the coating material supplied from the tank.
- the coating material is a mixture containing a volatile component and a non-volatile component, and has fluidity.
- the tank may be a reservoir (not shown) housed in the head 10.
- Volatile components are, for example, water, organic solvents, alcohol, etc., and adjust the physical characteristics of the coating material, such as viscosity and surface tension.
- Non-volatile components include, for example, pigments, resin materials and additives. Pigments include one or more color pigments used depending on the desired paint color.
- the resin material adheres to the object to be coated 30 to form a film.
- the additive is a functional material added for the purpose of, for example, weather resistance.
- the coating material supplied to the discharge hole 11 is prepared by mixing a plurality of coloring pigments or coating materials at a predetermined ratio so as to develop a desired coating color.
- the wiper 14 wipes the nozzle surface 12 of the head 10.
- the wiper 14 is an example of a wiping mechanism.
- the wiper 14 is supported by a support member (not shown) and is arranged in the vicinity of the robot 20.
- the wiper 14 is an elastic member having a predetermined hardness.
- the wiper 14 has a hardness between the non-volatile component contained in the coating material adhering to the nozzle surface 12 and the plurality of discharge holes 11 of the nozzle surface 12. Therefore, the non-volatile component contained in the coating material adhering to the nozzle surface 12 can be effectively removed, and the deformation of the discharge hole 11 due to the wear of the nozzle surface 12 can be suppressed, and the durability of the head 10 can be suppressed. Is improved.
- the hardness of the plurality of discharge holes 11 included in the nozzle surface 12 may be measured by measuring the hardness of, for example, the nozzle plate, which is a member constituting the nozzle surface 12.
- the wiper 14 may be a wiper 14 by wrapping a flexible material such as a woven cloth, a non-woven fabric or paper around an elastic member. The wiper 14 is pressed against the nozzle surface 12 with a pressure within a predetermined range. When the head 10 is moved in a certain direction while maintaining this state, the non-volatile components such as the coating material, particularly the pigment and the resin material, adhering to the nozzle surface 12 are wiped off from the nozzle surface 12.
- the wiper 14 may be a so-called wet wiper containing an affinity component having an affinity for the non-volatile component adhering to the nozzle surface 12.
- affinity refers to a property of reducing the adhesion to the nozzle surface 12 by, for example, swelling, dispersion, dissolution, or the like.
- the affinity component having such an affinity include water, organic solvents, alcohols, fats and oils, etc.
- the affinity component is volatile, the coating quality is caused by the residue of the affinity component on the nozzle surface 12. Reduction is suppressed.
- the robot 20 holds the head 10.
- the robot 20 is, for example, a 6-axis articulated robot.
- the robot 20 has a plurality of arms 21, and a head 10 is fixed to the tip of the arms 21.
- the robot 20 is fixed to a floor surface, a wall surface, a ceiling surface, or the like.
- the control device 40 controls the painting device 1.
- the control device 40 includes a control unit 41 that controls the painting device 1 and a storage unit 45.
- the control unit 41 includes a discharge control unit 42 and an operation control unit 43.
- the discharge control unit 42 controls the head 10 based on the setting information stored in the storage unit 45, and discharges the coating material from the plurality of discharge holes 11 toward the object to be coated 30.
- the motion control unit 43 controls the motion of the plurality of arms 21 based on the setting information stored in the storage unit 45, and controls the motion of the head 10 via the arms 21.
- the distance between the head 10 and the object to be coated 30 is maintained, for example, about 0.5 to 14 mm.
- the motion control unit 43 controls the motion of the plurality of arms 21 based on the position information of the wiper 14 stored in the storage unit 45, and moves the head 10 relative to the wiper 14 to move the head 10 relative to the nozzle surface 12 To wipe off.
- the detailed movement of the head 10 when the nozzle surface 12 is wiped with the wiper 14 will be described later.
- the storage unit 45 stores setting information for various controls.
- the storage unit 45 stores information regarding ejection control of the coating material by the head 10. Further, the storage unit 45 stores information related to the operation control of the plurality of arms 21. Further, the storage unit 45 stores the position information of the wiper 14.
- the storage unit 45 may store the data input by the user's teaching work using a terminal device (not shown) as teaching data for operating the robot 20.
- the object to be painted 30 is, for example, a vehicle body.
- the object to be coated 30 is placed on a transport device (not shown) and carried in and out.
- the painting device 1 according to the embodiment paints the object to be painted 30 with the transport device stopped.
- the coating device 1 may be used to paint the object to be coated 30 which is repeatedly conveyed and stopped, or may be coated in parallel with the conveying of the object to be coated 30.
- the degree of freedom of movement of the head 10 is small, and when the nozzle surface 12 is wiped, the wiper 14 is moved with respect to the head 10. Therefore, for example, there is room for improvement in terms of simplification of the configuration that can realize miniaturization and cost reduction.
- the head 10 since the head 10 is fixed to the robot 20, the head 10 is moved with respect to the wiper 14 fixed in the vicinity of the robot 20 according to the degree of freedom of the arm 21.
- the nozzle surface 12 can be wiped off. Therefore, for example, a dedicated mechanism for moving the wiper 14 toward the head 10 becomes unnecessary, and the configuration can be simplified.
- FIG. 2 is a cross-sectional view showing an example of a painted object to be painted.
- the object to be coated 30 shown in FIG. 2 includes a base material 31, a primer layer 32, and a first coating layer 33.
- the base material 31 is, for example, a steel plate processed into a predetermined shape, and is subjected to an electrodeposition treatment as necessary to impart rust resistance.
- the primer layer 32 is provided, for example, to impart weather resistance, color development property, and peeling resistance.
- the first coating layer 33 is, for example, a base layer having smoothness and weather resistance and imparting a desired coating color.
- the surface of the first coating layer 33 is the surface to be coated 30a to be coated by the coating apparatus 1 according to the embodiment.
- the second coating layer 34 is located on the first coating layer 33, which is the surface to be coated 30a.
- the second coating layer 34 is positioned so as to cover a part of the first coating layer 33 with a coating material having a coating color different from that of the first coating layer 33.
- the region 36 where the second coating layer 34 is located and the region 35 where the first coating layer 33 is exposed without the second coating layer 34 being located are the edges of the second coating layer 34.
- the painted body 38 is painted in a so-called two-tone color lined up with the portion 37 as a boundary.
- the coating apparatus 1 has been described as locating the second coating layer 34 on the surface to be coated 30a on the first coating layer 33, but the present invention is not limited to this, and for example, coating on the primer layer 32 is performed.
- the coating apparatus 1 may be applied when the first coating layer 33 is positioned on the surface 32a.
- the painted body 38 is not limited to the example shown in FIG.
- a coating layer (not shown) may be located on the surface of the regions 35 and 36.
- the second coating layer 34 may not be provided and only the first coating layer 33 may be provided, or the second coating layer 34 may be located on the entire surface of the first coating layer 33.
- the object to be coated 30 or the coated body 38 may further have one or more layers (not shown).
- FIG. 3 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the first embodiment.
- the motion control unit 43 (see FIG. 1) operates the arm 21 (see FIG. 1) with respect to the wiper 14 to relatively move the head 10.
- the first wiper 14 arranged along the Z-axis direction is located along the XY plane intersecting the Z-axis and as one end surface of the head 10.
- the head 10 is arranged so that the surface 10a is in contact with or close to the wiper 14.
- the nozzle surface 12 receives a predetermined pressing force from the second surface 14b of the wiper 14 from the first surface 10a side of the head 10 toward the second surface 10b side as the other end surface.
- the nozzle surface 12 is wiped by the wiper 14 by being moved in the direction 50 along the positive direction of the Y axis.
- the series of operations described above may be continuously performed after the painting operation is completed, or the arm 21 (see FIG. 1) may be temporarily stopped before the operation of wiping the nozzle surface 12. If the arm 21 is temporarily stopped before the wiping operation, the misalignment of the head 10 due to the movement of the arm 21 accompanied by vibration or rocking is reduced, and the accuracy of the wiping operation is improved.
- the term "resting” as used herein is not limited to a state in which the vehicle is completely stopped, but includes, for example, a state in which vibration or vibration is attenuated to a predetermined allowable range.
- "before the operation of wiping the nozzle surface 12" is not limited to before the wiper 14 and the nozzle surface 12 are brought into contact with each other. For example, after the wiper 14 and the nozzle surface 12 are brought into contact with each other, the term “before the operation” is applied. It may be before moving the head 10.
- FIG. 4 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the second embodiment.
- the example shown in FIG. 4 differs from the coating apparatus according to the first embodiment shown in FIG. 3 in that the nozzle surface 12 of the head 10 is inclined by an angle ⁇ 1 with respect to the XY plane.
- the head 10 arranged so that the nozzle surface 12 faces the wiper 14 side is moved in the direction 50 along the positive direction of the Y axis, so that the head 10 moves from the first surface 10a side to the second surface 10b side.
- the nozzle surface 12 is wiped away by the wiper 14.
- the wiper 14 is compressed according to its hardness and other characteristics, or is bent toward the first surface 14a of the wiper 14, so that the nozzle surface 12 receives a predetermined pressing force from the second surface 14b of the wiper 14. Therefore, for example, even if the movement of the head 10 with respect to the wiper 14 is displaced, by canceling the displacement by changing the amount of deformation of the wiper 14, for example, the nozzle surface 12 may be damaged. Can be reduced.
- the angle ⁇ 1 of the nozzle surface 12 with respect to the XY plane can be, for example, 10 ° or more and 35 ° or less. If the angle ⁇ 1 is less than 10 °, the effect of canceling the misalignment of the head 10 may not appear easily. Further, when the angle ⁇ 1 exceeds 35 °, the amount of change of the wiper 14 increases, and it may be easily damaged.
- FIG. 5 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the second embodiment.
- the coating apparatus according to the second embodiment shown in FIG. 4 in that the direction 50 in which the head 10 moves is along the nozzle surface 12 which is inclined by an angle ⁇ 2 with respect to the XY plane. Is different from. Even when the direction 50 is tilted in this way, the nozzle surface 12 may be damaged by canceling the misalignment of the head 10 with respect to the wiper 14, as in the coating apparatus according to the second embodiment. Can be reduced.
- the angle ⁇ 2 of the nozzle surface 12 with respect to the XY plane can be, for example, 10 ° or more and 35 ° or less. If the angle ⁇ 2 is less than 10 °, the effect of canceling the misalignment of the head 10 may not appear easily. Further, when the angle ⁇ 2 exceeds 35 °, the pressing force by the wiper 14 is difficult to be transmitted to the nozzle surface 12, and the nozzle surface 12 may be poorly wiped.
- FIG. 6 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the third embodiment.
- the example shown in FIG. 6 differs from the coating apparatus according to the first embodiment shown in FIG. 3 in that the nozzle surface 12 can be wiped in both the directions 50 and the directions 50a facing each other along the Y-axis direction.
- the nozzle surface 12 is wiped by the second surface 14b of the wiper 14 from the first surface 10a side to the second surface 10b side. .. Further, while the head 10 is moved in the direction 50a along the negative direction of the Y axis, the nozzle surface 12 is wiped by the first surface 14a of the wiper 14 from the second surface 10b side to the first surface 10a side. ..
- the nozzle surface 12 can be wiped in both the direction 50 and the direction 50a in this way, the wiping performance by the wiper 14 is improved. Further, by wiping from both directions 50 and 50a, for example, deformation of the discharge hole 11 (see FIG. 1) due to wear of the nozzle surface 12 can be suppressed, and the durability of the head 10 is improved.
- FIG. 7 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the third embodiment.
- the example shown in FIG. 7 differs from the coating apparatus according to the second embodiment shown in FIG. 4 in that the nozzle surface 12 can be wiped in both the directions 50 and the directions 50a facing each other along the Y-axis direction.
- the nozzle surface 12 is moved from the first surface 10a side to the second surface 10b. It is wiped by the second surface 14b of the wiper 14 toward the side. Further, the head 10 changes the posture of the nozzle surface 12 so that the nozzle surface 12 faces the wiper 14 side, and while the head 10 is moved in the direction 50a along the negative direction of the Y axis, the nozzle surface 12 is on the second surface 10b side. The wiper 14 is wiped from the surface toward the first surface 10a by the first surface 14a of the wiper 14.
- the nozzle surface 12 can be wiped in both the direction 50 and the direction 50a in this way, the wiping performance by the wiper 14 is improved. Further, by changing the inclination of the nozzle surface 12 in both the direction 50 and the direction 50a, the wiping performance of the nozzle surface 12 is improved, and for example, the coating material remaining on the nozzle surface 12 is reduced.
- the head 10 has been described as moving along the direction 50 and the direction 50a along the Y-axis component, but the present invention is not limited to this, and the nozzle surface 12 is not limited to this, for example, as shown in FIG.
- the head 10 may be moved in the direction along the above.
- FIG. 8 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the fourth embodiment.
- the direction 50 in which the head 10 is moved when wiping the nozzle surface 12 and the surface of the object to be coated 30 facing the nozzle surface 12 by discharging the coating material 13 from the plurality of discharge holes 11 The direction 51 for moving the head 10 when painting is parallel.
- the control unit 41 operation control
- the attitude control of the head 10 using the robot 20 (see FIG. 1) by the unit 43) is simplified.
- the direction 50 for moving the head 10 when wiping the nozzle surface 12 may be a direction facing the direction 51.
- FIG. 9 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the fourth embodiment.
- the direction 50 in which the head 10 is moved when wiping the nozzle surface 12 and the surface of the object to be coated 30 facing the nozzle surface 12 by discharging the coating material 13 from the plurality of discharge holes 11 The direction 51 for moving the head 10 when painting intersects with the direction 51.
- the direction 50 is a direction along the Y-axis
- the direction 51 is a direction along the X-axis that intersects the Y-axis.
- the head 10 in the direction 50 intersecting the direction 51, which is the moving direction of the head 10 when painting the object to be coated 30, and wiping the nozzle surface 12, for example, one end of the coating material 13.
- the nozzle surface 12 can be wiped off while switching the moving direction of the head 10, for example, painting is performed by reducing the moving distance of the head 10. You can save time.
- FIG. 10 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the fifth embodiment.
- the wiper 14 is supported by the suspension 18 as a buffer mechanism.
- the suspension 18 buffers the pressing force received by the nozzle surface 12 from the wiper 14 by adjusting the height of the wiper 14, that is, the length in the Z-axis direction according to the pressing force received by the wiper 14 from the nozzle surface 12.
- FIG. 11 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the sixth embodiment.
- the example shown in FIG. 11 includes a plurality of wipers 14 and 15 having different characteristics.
- the wiper 14 is a so-called wet wiper containing an affinity component for a non-volatile component contained in a coating material
- the wiper 15 is a so-called dry wiper that does not contain an affinity component or has a smaller content of an affinity component than the wiper 14. .
- the wiper 14 is an example of the first wiper
- the wiper 15 is an example of the second wiper.
- the nozzle surface 12 is wiped in order from the first surface 10a side to the second surface 10b side by the wiper 14 and the wiper 15.
- the wipers 14 and 15 are arranged side by side along the direction 50 in which the nozzle surface 12 moves, but if the wipers 14 and 15 are provided, the arrangement is limited. Absent. However, if the wipers 14 and 15 are arranged side by side as shown in FIG. 11, for example, the time required for wiping the nozzle surface 12 can be shortened.
- FIG. 12 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the seventh embodiment.
- a plurality of wipers 14 to 16 having different characteristics and an elevating mechanism 19 are included.
- Wipers 14 to 16 are installed along the Y-axis direction.
- the wipers 14 and 16 are wet wipers, and the wipers 15 are dry wipers.
- the wipers 14 to 16 are examples of the first wiper to the third wiper, respectively.
- the elevating mechanism 19 is configured to be able to elevate the wipers 14 and 16 according to the control of the control unit 41.
- the elevating mechanism 19 While the head 10 is moved in the direction 50 along the positive direction of the Y axis, the elevating mechanism 19 operates the wiper 16 so as to be lower than the height of the wiper 15 in the Z direction, and the wiper 14 is operated. The wiper 15 is operated so as to match the height in the Z direction.
- the nozzle surface 12 is wiped in order from the first surface 10a side to the second surface 10b side by the wiper 14 and the wiper 15, but not by the wiper 16.
- the elevating mechanism 19 causes the wiper 16 to operate so as to match the height of the wiper 15 in the Z direction, and also with respect to the wiper 14.
- the wiper 15 is operated so as to be lower than the height in the Z direction.
- the nozzle surface 12 is wiped in order from the second surface 10b side to the first surface 10a side by the wiper 16 and the wiper 15, but not by the wiper 14.
- FIG. 13 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the modified example of the seventh embodiment.
- a plurality of wipers 15, 14, 17 having different characteristics and an elevating mechanism 19 are included.
- the wipers 15, 14 and 17 are arranged in order along the Y-axis direction.
- the wiper 14 is a wet wiper, and the wipers 15 and 17 are dry wipers.
- the wipers 14, 15 and 17 are examples of the first wiper, the second wiper and the fourth wiper, respectively.
- the elevating mechanism 19 is configured to be able to elevate the wipers 15 and 17 according to the control of the control unit 41.
- the elevating mechanism 19 While the head 10 is moved in the direction 50 along the positive direction of the Y axis, the elevating mechanism 19 is operated so as to be lower than the height of the wiper 14 in the Z direction with respect to the wiper 15, and the wiper 17 is operated with respect to the wiper 17.
- the wiper 14 is operated so as to match the height in the Z direction.
- the nozzle surface 12 is wiped in order from the first surface 10a side to the second surface 10b side by the wiper 14 and the wiper 17, but not by the wiper 15.
- the elevating mechanism 19 causes the wiper 15 to operate so as to match the height of the wiper 14 in the Z direction, and also to the wiper 17.
- the wiper 14 is operated so as to be lower than the height in the Z direction.
- the nozzle surface 12 is wiped in order from the second surface 10b side to the first surface 10a side by the wiper 14 and the wiper 15, but not by the wiper 17.
- FIG. 14 is a diagram showing an arrangement example of a head and a wiper included in the coating apparatus according to the eighth embodiment.
- the example shown in FIG. 14 includes a plurality of wipers 14 to 16 having different characteristics.
- Wipers 14 to 16 are installed along the Y-axis direction. Further, the wiper 15 protrudes from the wipers 14 and 16.
- the wipers 14 and 16 are wet wipers, and the wipers 15 are dry wipers.
- the wipers 14 to 16 are examples of the first wiper to the third wiper, respectively.
- the nozzle surface 12 is wiped in order from the first surface 10a side to the second surface 10b side by the wiper 14 and the wiper 15, but the wiper 16 Will not be wiped out.
- the nozzle surface 12 is wiped in order from the second surface 10b side to the first surface 10a side by the wiper 16 and the wiper 15. It is not wiped with the wiper 14.
- the nozzle surface 12 is wiped in both directions 50 and 50a. Therefore, the wiping performance by the wipers 14 to 16 is improved.
- the head 10 may be moved in the direction along the nozzle surface 12, and the head 10 may be moved while changing the inclination of the nozzle surface 12 with respect to the wiper 14.
- the wipers 14 to 16 can be selectively brought into contact with each other by appropriately adjusting the angle of the head 10 by the arm 21 (see FIG. 1).
- FIG. 15 is an explanatory view of the coating apparatus according to the first modification of the embodiment.
- the example shown in FIG. 15 differs from the coating device 1 according to the embodiment in that the wiper 14 has the robot 20A fixed to the arm 21. Since the wiper 14 is fixed to the arm 21, both the head 10 and the wiper 14 can be relatively moved to wipe the nozzle surface 12. Therefore, for example, the time required for wiping the nozzle surface 12 can be shortened. Further, even when the nozzle surface 12 is frequently wiped, the time loss can be reduced. It also has the advantage that the quality of the coating film is improved by wiping frequently.
- FIG. 16 is an explanatory view of a coating apparatus according to a second modification of the embodiment.
- the coating device 1A shown in FIG. 16 is different from the coating device 1 according to each of the above-described embodiments and modifications in that it has a wiping unit 114 as an example of the wiping mechanism instead of the wiper 14.
- FIG. 17 is an explanatory diagram of the wiping unit shown in FIG. As shown in FIG. 17, the wiping unit 114 includes a pressure roller 115, a winding roller 116, a winding roller 117, and a wiping web 120.
- the unwinding roller 116 unwinds the wiping web 120.
- the unwinding roller 116 unwinds the wiping web 120a before the wiping process, which is used for wiping the head 10 by the wiping unit 114.
- the pressure roller 115 presses the wiping web 120 against the nozzle surface 12 of the head 10.
- the pressure roller 115 is located between the take-up roller 116 and the take-up roller 117.
- the pressure roller 115 presses the wiping web 120a unwound from the unwinding roller 116 before wiping against the nozzle surface 12 of the head 10.
- the pressure roller 115 may or may not rotate following the movement of the wiping web 120.
- the take-up roller 117 winds up the wiping web 120 unwound from the unwinding roller 116.
- the take-up roller 117 winds up the wiping web 120b after wiping that has passed through the pressure roller 115.
- the wiping web 120 may be a flexible material such as woven fabric, non-woven fabric or paper.
- the wiping web 120 is pressed against the nozzle surface 12 by a pressure roller 115 with a pressure within a predetermined range.
- a certain direction for example, the direction 50 along the positive direction of the Y axis
- non-volatile components such as coating materials, especially pigments and resin materials, adhering to the nozzle surface 12 are released from the nozzle surface 12. Be wiped out.
- the wiping web 120 may contain an affinity component having an affinity for the non-volatile component adhering to the nozzle surface 12.
- affinity refers to a property of reducing the adhesion to the nozzle surface 12 by, for example, swelling, dispersion, dissolution, or the like.
- the affinity component having such an affinity include water, organic solvents, alcohols, fats and oils, etc.
- the affinity component is volatile, the coating quality is caused by the residue of the affinity component on the nozzle surface 12. Reduction is suppressed.
- the wiping unit 114 may be fixed to the arm 21.
- both the head 10 and the wiping unit 114 can be relatively moved to wipe the nozzle surface 12. Therefore, for example, the time required for wiping the nozzle surface 12 can be shortened. Further, even when the nozzle surface 12 is frequently wiped, the time loss can be reduced. It also has the advantage that the quality of the coating film is improved by wiping frequently.
- the drive of the wiping unit 114 may be controlled by the control device 40.
- the control device 40 presses, for example, the winding speed of the wiping web 120 driven by the take-up roller 117 and / or the unwinding roller 116, and / or the wiping web 120 against the nozzle surface 12 via the pressure roller 115. The amount may be controlled. Further, the drive of the wiping unit 114 may be controlled by a control mechanism (not shown) different from the control device 40.
- the coating device 1 including one head 10 for discharging a monochromatic coating material has been described.
- magenta (M), yellow (Y), cyan (C), and black (K) have been described.
- a robot 20 may be provided that holds the heads 10 for discharging the coating materials of the basic colors such as.
- the nozzle surface 12 is wiped with the wiper 14 extending in the positive direction side of the Z axis, but the present invention is not limited to this, and for example, the nozzle surface 12 is wiped with the wiper 14 extending in the negative direction side of the Z axis.
- the nozzle surface 12 may be wiped with a wiper 14 located along the X-axis direction or the Y-axis direction intersecting the Z-axis direction. Further, the nozzle surface 12 may be wiped with the wiper 14 located at an angle to the Z axis.
- the wiping unit 114 has shown an example in which the wiping web 120 is pressed toward the Z-axis positive direction side, but the present invention is not limited to this, and for example, the wiping web 120 may be pressed toward the Z-axis negative direction side. Often, the wiping web 120 may be pressed in the direction along the X-axis direction or the Y-axis direction intersecting the Z-axis direction. Further, the wiping unit 114 may press the wiping web 120 in a direction obliquely toward the Z axis.
- the present invention is not limited to this, and a non-contact wiper 14 may be used.
- a non-contact wiper 14 a hollow tubular member can be exemplified.
- the non-contact wiper 14 can wipe the nozzle surface 12 in a non-contact state by ejecting air from the inside of the cylinder.
- the coating device 1 includes a head 10, a wiping mechanism (wiper 14 and / or a wiping unit 114), an arm 21, and a control unit 41.
- the head 10 has a nozzle surface 12 for discharging a coating material.
- the wiping mechanism wipes the nozzle surface 12.
- the arm 21 holds the head 10.
- the control unit 41 controls the movement of the head 10 via the arm 21.
- the control unit 41 causes the wiping mechanism to wipe the nozzle surface 12 by relatively moving the head 10. Therefore, the configuration can be simplified.
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Abstract
Description
まず、図1を参照して実施形態に係る塗装装置の概要について説明する。図1は、実施形態に係る塗装装置の説明図である。なお、説明を分かりやすくするために、図1には、鉛直上向きを正方向とし、鉛直下向きを負方向とするZ軸を含む3次元の直交座標系を図示している。かかる直交座標系は、後述の説明に用いる他の図面でも示す場合がある。また、図1に示す塗装装置1と同様の構成については同じ符号を付し、その説明を省略または簡略化する。
図3は、第1の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。動作制御部43(図1参照)は、ワイパ14に対し、アーム21(図1参照)を動作させてヘッド10を相対的に移動させる。具体的には、図3に示すように、Z軸方向に沿って配置されたワイパ14に対し、Z軸に交差するXY平面に沿って位置し、かつ、ヘッド10の一端面としての第1面10aが、ワイパ14に接触または近接するようにヘッド10を配置させる。このように配置されたヘッド10は、ヘッド10の第1面10a側から他端面としての第2面10b側に向けてノズル面12がワイパ14の第2面14bから所定の押圧力を受けるようにY軸正方向に沿う方向50に移動されることで、ノズル面12がワイパ14により払拭される。
図4は、第2の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図4に示す例では、ヘッド10のノズル面12が、XY平面に対して角度θ1だけ傾斜している点で図3に示す第1の実施形態に係る塗装装置と相違する。
図5は、第2の実施形態の変形例に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図5に示す例では、ヘッド10が移動する方向50が、XY平面に対して角度θ2だけ傾斜しているノズル面12に沿っている点で図4に示す第2の実施形態に係る塗装装置と相違する。このように方向50を傾けた場合においても、第2の実施形態に係る塗装装置と同様に、ワイパ14に対するヘッド10の位置ずれを相殺することで、例えば、ノズル面12が損傷する可能性を低減することができる。
図6は、第3の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図6に示す例では、Y軸方向に沿って向かい合う方向50および方向50aの両方向でノズル面12を払拭することができる点で図3に示す第1の実施形態に係る塗装装置と相違する。
図7は、第3の実施形態の変形例に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図7に示す例では、Y軸方向に沿って向かい合う方向50および方向50aの両方向でノズル面12を払拭することができる点で図4に示す第2の実施形態に係る塗装装置と相違する。
図8は、第4の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図8に示す例では、ノズル面12を払拭する際にヘッド10を移動させる方向50と、複数の吐出孔11から塗装材料13を吐出し、ノズル面12と対向する被塗装物30の表面を塗装する際にヘッド10を移動させる方向51とが平行である。
図9は、第4の実施形態の変形例に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図9に示す例では、ノズル面12を払拭する際にヘッド10を移動させる方向50と、複数の吐出孔11から塗装材料13を吐出し、ノズル面12と対向する被塗装物30の表面を塗装する際にヘッド10を移動させる方向51とが交差している。具体的には、方向50はY軸に沿う方向であり、方向51はY軸に交差するX軸に沿う方向である。
図10は、第5の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図10に示す例では、ワイパ14が緩衝機構としてのサスペンション18に支持されている。サスペンション18は、ワイパ14がノズル面12から受ける押圧力に応じてワイパ14の高さ、すなわちZ軸方向の長さを調整することにより、ノズル面12がワイパ14から受ける押圧力を緩衝する。このようにワイパ14を支持するサスペンション18を有することにより、例えばヘッド10の位置ずれや移動速度のばらつきに応じて、ワイパ14からノズル面12が受ける押圧力の差異を吸収することができる。
図11は、第6の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図11に示す例では、特性の異なる複数のワイパ14,15を含む。
図12は、第7の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図12に示す例では、特性の異なる複数のワイパ14~16と、昇降機構19とを含む。
図13は、第7の実施形態の変形例に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図13に示す例では、特性の異なる複数のワイパ15,14,17と、昇降機構19とを含む。
図14は、第8の実施形態に係る塗装装置が備えるヘッドとワイパの配置例を示す図である。図14に示す例では、特性の異なる複数のワイパ14~16を含む。
図15は、実施形態の第1変形例に係る塗装装置の説明図である。図15に示す例では、ワイパ14が、アーム21に固定されたロボット20Aを有する点で実施形態に係る塗装装置1と相違する。ワイパ14がアーム21に固定されていることにより、ヘッド10およびワイパ14の両方を相対的に移動させてノズル面12を払拭させることができる。このため、例えば、ノズル面12の払拭に要する時間を短縮することができる。また、頻繁にノズル面12の払拭を行う場合であっても、時間のロスを少なくすることができる。頻繁にワイプすることで塗膜品質が向上するという利点も有する。
図16は、実施形態の第2変形例に係る塗装装置の説明図である。図16に示す塗装装置1Aは、ワイパ14に代えて、払拭機構の一例としての払拭ユニット114を有する点で上記した各実施形態および変形例に係る塗装装置1と相違する。
10 ヘッド
11 吐出孔
12 ノズル面
13 塗装材料
14~17 ワイパ
20 ロボット
21 アーム
30 被塗装物
30a 被塗装面
40 制御装置
41 制御部
42 吐出制御部
43 動作制御部
45 記憶部
114 払拭ユニット
Claims (20)
- 塗装材料を吐出するノズル面を有するヘッドと、
前記ノズル面を払拭する払拭機構と、
前記ヘッドを保持するアームと、
前記アームを介して前記ヘッドの動きを制御する制御部と
を備え、
前記制御部は、前記払拭機構に対し、前記ヘッドを相対的に移動させて前記ノズル面を払拭させる
塗装装置。 - 前記制御部は、前記払拭機構に対して前記ノズル面を傾けた姿勢で前記ヘッドを移動させる
請求項1に記載の塗装装置。 - 前記払拭機構は、前記ヘッドが第1方向に移動したときに前記ノズル面を払拭する第1面と、前記ヘッドを挟んで前記第1方向と対称の第2方向に移動したときに前記ノズル面を払拭する第2面とを有する
請求項1または2に記載の塗装装置。 - 前記制御部は、前記ヘッドの移動方向に応じて前記払拭機構に対する前記ノズル面の傾きを相違させる
請求項3に記載の塗装装置。 - 特性の異なる複数の前記払拭機構を有する
請求項1~4のいずれか1つに記載の塗装装置。 - 複数の前記払拭機構が、前記塗装材料に含まれる不揮発成分に対する親和性を有する親和成分を含む第1払拭機構と、前記親和成分を払拭する第2払拭機構とを有する
請求項5に記載の塗装装置。 - 前記第1払拭機構を挟んで前記第2払拭機構と向かい合い、前記親和成分を払拭する第3払拭機構を有する
請求項6に記載の塗装装置。 - 前記ヘッドの移動方向に応じて前記第1払拭機構に対する前記第2払拭機構または前記第3払拭機構の位置を変化させる昇降機構を有する
請求項7に記載の塗装装置。 - 前記第2払拭機構を挟んで前記第1払拭機構と向かい合い、前記親和成分を含む第4払拭機構を有する
請求項6に記載の塗装装置。 - 前記ヘッドの移動方向に応じて前記第2払拭機構に対する前記第1払拭機構または前記第4払拭機構の位置を変化させる昇降機構を有する
請求項9に記載の塗装装置。 - 前記第2払拭機構は、前記第1払拭機構および前記第3払拭機構に対して突出している
請求項7に記載の塗装装置。 - 複数の前記払拭機構が、前記ノズル面の移動方向に沿って並設する
請求項5~11のいずれか1つに記載の塗装装置。 - 前記制御部は、被塗装物を塗装するときの前記ヘッドの移動方向に沿う方向に前記ヘッドを移動させて前記ノズル面を払拭する
請求項1~12のいずれか1つに記載の塗装装置。 - 前記制御部は、被塗装物を塗装するときの前記ヘッドの移動方向に交差する方向に前記ヘッドを移動させて前記ノズル面を払拭する
請求項1~12のいずれか1つに記載の塗装装置。 - 前記ノズル面が前記払拭機構から受ける押圧力を緩衝する緩衝機構を備える
請求項1~14のいずれか1つに記載の塗装装置。 - 前記払拭機構は、前記ノズル面に付着する前記塗装材料に含まれる不揮発成分と、前記ノズル面が有する複数の吐出孔との間の硬度を有する
請求項1~15のいずれか1つに記載の塗装装置。 - 前記制御部は、前記ノズル面を払拭させる動作の前に前記アームを一時的に静止させる
請求項1~16のいずれか1つに記載の塗装装置。 - 前記制御部は、前記払拭機構に対する前記ノズル面の傾きを変化させながら前記ヘッドを移動させる
請求項2に記載の塗装装置。 - 前記払拭機構は、前記アームに固定されている
請求項1~18のいずれか1つに記載の塗装装置。 - 塗装材料を吐出するノズル面を有するヘッドを、前記ノズル面を払拭する払拭機構に対し、前記ヘッドを保持するアームを介して相対的に移動させる
払拭方法。
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| EP20880564.8A EP4052802B1 (en) | 2019-10-28 | 2020-10-28 | Coating device and wiping method |
| JP2021553668A JP7408676B2 (ja) | 2019-10-28 | 2020-10-28 | 塗装装置および払拭方法 |
| CN202080073905.5A CN114599457B (zh) | 2019-10-28 | 2020-10-28 | 涂装装置及擦拭方法 |
| US17/755,317 US11919031B2 (en) | 2019-10-28 | 2020-10-28 | Coating device and wiping method |
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| EP (1) | EP4052802B1 (ja) |
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| CN (1) | CN114599457B (ja) |
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| JP7596865B2 (ja) * | 2021-03-09 | 2024-12-10 | セイコーエプソン株式会社 | 立体物印刷装置および立体物印刷方法 |
| JP7559279B1 (ja) * | 2024-05-30 | 2024-10-01 | アーベーベー・シュバイツ・アーゲー | 塗装システム |
| JP7562901B1 (ja) * | 2024-05-30 | 2024-10-07 | アーベーベー・シュバイツ・アーゲー | 塗装システム |
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Also Published As
| Publication number | Publication date |
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| US20220379338A1 (en) | 2022-12-01 |
| EP4052802A1 (en) | 2022-09-07 |
| JPWO2021085501A1 (ja) | 2021-05-06 |
| US11919031B2 (en) | 2024-03-05 |
| EP4052802B1 (en) | 2025-09-03 |
| EP4052802A4 (en) | 2023-11-08 |
| JP7408676B2 (ja) | 2024-01-05 |
| CN114599457A (zh) | 2022-06-07 |
| CN114599457B (zh) | 2025-03-25 |
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