JP2012228643A - Coating system for casing of mobile terminal and coating method for casing of mobile terminal using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating system for a casing of a mobile terminal, for allowing coating of the casing of the mobile terminal while suppressing wastefulness of coating material and energy for air conditioning, and to provide a coating method for the casing of the mobile terminal.SOLUTION: This coating system is disposed, halfway through a carrier line 2, with: an inkjet device 7 coating a work by an inkjet system; a coating booth 8 jetting the atomization coating material toward the work to coat the work; and a UV hardening device 12 hardening the coating material discharged to and having adhered to the work. A flat face portion of the work carried on the carrier line 2 is coated inside the inkjet device 7 by the inkjet system, side face portions are coated inside the coating booth 8 by a coating material jet means 11, and the ink discharged to and having adhered to the flat face portion of the work by the inkjet system and the coating material discharged to and having adhered to the side face portions of the work by the coating material jet means 11 are hardened inside the UV hardening device 12 by UV irradiation.

Description

  The present invention relates to a mobile terminal casing coating system and a mobile terminal casing coating method using the same, and more particularly, to reduce the waste of paint when coating a mobile terminal casing, BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating system for a portable terminal casing that can reduce coating space and air conditioning energy, and a method for coating a portable terminal casing using the coating system.

  In general, when painting a workpiece, spray-type painting is employed in which the workpiece is conveyed by a conveyor and sprayed in the form of a mist by a spray gun toward the conveyed workpiece.

  That is, in spray-type painting, while supplying paint to the spray gun head using a syringe, pump, etc., the supplied paint is atomized by air and sprayed toward the workpiece. Thus, the paint was applied to the work and applied.

  At this time, when painting the surface of a three-dimensional work such as the case of a portable terminal such as a portable telephone, a mobile personal computer, or a tablet terminal, the plane portion and the side portion must be painted. Therefore, the spray gun is moved to various angles and the paint is sprayed from multiple angles to the work, or the paint is sprayed onto the work while changing the tilt of the work with respect to the spray gun. It was.

  Conventionally, however, it has been pointed out that such a spray-type coating method in which paint is atomized and sprayed onto a workpiece is wasteful of paint.

  That is, in general, in the spray-type coating method, it is said that the proportion of the paint sprayed from the spray gun that actually deposits on the work is about 20 to 30%, so the remaining paint is wasted. It has been pointed out that there is a problem.

  In addition, since paint contains harmful substances, it is necessary to collect the paint mist generated in the paint booth without depositing on the work. Generally, a method of exhausting indoor air to the outside while collecting paint mist with a filter while supplying an air flow in a certain direction and supplying air into the coating chamber is generally employed.

  For this reason, conventionally, energy for air conditioning was required to exhaust indoor air to the outside of the room and supply air into the painting chamber. At this time, the spray gun was moved to various angles. When the method of spraying paint on the workpiece from a plurality of angles is adopted, there is a problem that the energy for air conditioning must be increased because the painting booth needs to be enlarged.

  Therefore, recently, a method of painting a work by ink jet has begun to be proposed. And in this ink jet method, the ink filled in the ink chamber is made to land on the object by pushing out from the nozzle, and this is a method of painting the object, so unlike the method of atomizing and spraying the paint, There is an advantage that it is possible to eliminate waste of paint.

  In addition, in the ink jet method, there is no ink that does not land on the target, and no ink mist or the like is generated in the painting booth, and the ink to be used contains almost no harmful organic solvent. This eliminates the need to collect the ink and thus reduces the air-conditioning energy. Therefore, the problem of spray painting can be solved by painting the workpiece by the ink jet method having these advantages. Is possible.

JP 2011-201113 A JP 2003-340351 A JP 2005-74666 A JP 2007-175665 A JP 2007-175669 A JP 2007-177573 A JP 2007-177964 A JP 2007-196198 A JP 2009-50804 A JP 2009-50805 A

  However, in the ink jet method, ink can be dropped only in the vertical method, so when painting a three-dimensional work such as the case of the portable terminal described above, it is possible to paint a flat part, but the side surface The problem is that the part cannot be painted.

  Therefore, the present invention provides a mobile terminal casing coating system and a mobile terminal using the same, which enables coating of the mobile terminal casing while suppressing waste of paint and energy for air conditioning. It is an object to provide a method for painting a casing.

A coating system for a casing for a portable terminal of the present invention,
A coating system for a portable terminal casing for coating a workpiece being conveyed on the conveyance line, the conveyance line having a conveyance line for conveying the workpiece,
In the middle of the transfer line, a static elimination / dust removal device for removing static electricity from the workpiece and removing dust adhering to the workpiece, an inkjet device for coating the workpiece by an inkjet method, and atomized paint toward the workpiece A coating booth for painting the workpiece by spraying and a UV curing device for curing the paint deposited on the workpiece,
The ink jet device includes a head unit for applying ink to a flat part of the work to coat the flat part of the work, a defoaming / deaeration device for defoaming and degassing the ink, and an ink clogging. With a head maintenance device to prevent,
The paint booth includes paint spraying means for spraying paint toward the side surface portion of the workpiece,
The UV curing device includes UV irradiation means for irradiating the work with UV to cure the ink landed on the work in the inkjet device and the paint deposited on the work in a painting booth. It is said.

And in the coating method of the casing for a portable terminal of the present invention using this coating system,
The plane part of the work being transported on the transport line is painted by the ink jet method in the ink jet device,
The side part of the work being transported on the transport line is painted by the paint spraying means in the painting booth,
After that, the ink deposited on the plane portion of the workpiece by the ink jet method and the paint deposited on the side portion of the workpiece by the coating material jetting means are cured by UV irradiation in the UV curing apparatus. .

  In the portable terminal casing coating system and the portable terminal casing coating method of the present invention, an inkjet apparatus for coating a workpiece by an inkjet method, and spraying the atomized paint toward the workpiece to inject the workpiece. It is equipped with a painting booth for painting, and the plane part of the workpiece is painted by the inkjet method.

  Therefore, compared with the conventional coating system and the coating method which coats a workpiece with a spray gun, the amount of coating material which does not deposit on the workpiece and becomes paint mist is reduced, thereby making it possible to suppress the waste of the coating material. Along with this, it is possible to suppress the air conditioning energy required for collecting the paint mist.

  Further, in the portable terminal casing coating system and the portable terminal casing coating method of the present invention, the side surface portion of the workpiece is coated by the paint spraying means in the same manner as in the conventional method. It is possible to coat the side portion of the work by solving the drawbacks of the ink jet system that can only drop ink.

  Therefore, according to the present invention, it is possible to paint the surface of a three-dimensional work such as a casing of a portable terminal while suppressing waste of paint and energy for air conditioning.

It is a system diagram for demonstrating the whole structure of the coating system of the housing | casing for portable terminals of this invention. It is a block diagram for demonstrating the control system of the coating system of the housing | casing for portable terminals of this invention.

  The coating system for a portable terminal casing according to the present invention includes a transport line for transporting a workpiece, and the transport line includes a conveyor.

  In addition, the painting system for a portable terminal casing of the present invention includes a plurality of workpiece supply tables that can fix workpieces, and the workpiece supply tables are movably mounted on the conveyor at intervals, It is supposed to be conveyed with the drive of the conveyor.

  In the portable terminal casing coating system of the present invention, the work is painted by an inkjet method and a static elimination / dust removal device for removing static electricity from the work and removing dust adhering to the work in the middle of the transfer line. In addition to an inkjet device for spraying and a coating booth for spraying the atomized paint toward the workpiece, the coating booth for coating the workpiece, and a UV curing device for curing the ink and paint deposited on the workpiece It is arranged.

  The ink jet apparatus includes a head unit for landing ink on a flat part of the work to coat the flat part of the work, a defoaming / deaeration device for defoaming and degassing the ink, and an ink clogging. The painting booth is equipped with a spray gun as a paint spraying means for spraying paint toward the side surface portion of the workpiece.

  Also, the UV curing device irradiates UV on the plane and side portions of the workpiece, thereby causing the ink to land on the plane portion of the workpiece in the inkjet device and the paint deposited on the side portion of the workpiece in the painting booth. UV irradiation means for curing is provided.

  And in the coating method of the housing | casing for portable terminals of this invention, the plane part of the workpiece | work currently conveyed on the conveyance line is coated by an inkjet system using the above coating systems, and it conveys on the conveyance line. The side part of the workpiece that has been applied is painted with a spray gun, and then the plane part and the side part of the work are irradiated with UV. It is supposed that the paint deposited on the side portion of the material is cured by UV.

  Here, in the ink jet apparatus and the painting booth, it is preferable to paint the plane part and the side part of the work using ink that does not contain an organic solvent, thereby heating and drying the paint deposited and landed on the work. It is possible to reduce the cost by eliminating the process.

  In addition to the above configuration, an inkjet printing mechanism for printing an image-processed design on a workpiece by an inkjet method is provided in the middle of the conveyance line, and the inkjet line is conveyed on the conveyance line by the inkjet printing mechanism. It is better to make it possible to print the image-processed design on the flat part of the workpiece, which eliminates the need for separate printing and painting lines and prevents the adhesion of dust to the workpiece and lowering the yield. It is possible to increase the production speed while improving the yield, and it is possible to print and paint the work in a space-saving manner.

  An embodiment of a coating system for a portable terminal casing of the present invention (hereinafter simply referred to as “painting system”) will be described with reference to the drawings. FIG. 1 illustrates the overall configuration of the coating system of the present embodiment. It is a figure for doing. In the drawing, reference numeral 1 denotes the coating system of the present embodiment, and the coating system 1 of the present embodiment is a system for coating a casing of a tablet-type portable terminal.

  And in the coating system 1 of a present Example, the conveyance line for conveying a workpiece | work is comprised, This conveyance line is comprised by the chain conveyor. That is, in the figure, 2 is a conveying line, and in the figure, 3 is a chain conveyor. The chain conveyor 3 is an endless chain and is moved by a motor (not shown).

  In the drawing, reference numeral 6 denotes a work supply table. In the coating system 1 of this embodiment, the work supply table 6 is mounted on the chain conveyor 3 at intervals. A workpiece as a coated object is fixed, and the workpiece can be conveyed on the conveyance line 2 via the workpiece supply table 6.

  Furthermore, in the coating system 1 of the present embodiment, the work supply table 6 has a main shaft (not shown), and a lower portion of the main shaft is rotatably connected to the conveyor 3 and is driven by a motor or the like. By being connected to a belt or the like connected to the means, it can be driven to rotate.

  In the coating system of the present embodiment, the coating system for coating the casing of the tablet-type portable terminal is used, but the object to be coated in the present invention is not necessarily limited to the casing of the tablet-type portable terminal. Any portable terminal may be used.

  Next, a work load area 4 and an unload area 5 are installed adjacent to each other on the transfer line 2, and the work is fixed to the work supply table 6 in the load area 4. In the unload area 5, the painted workpiece fixed to the workpiece supply table 6 is removed. However, the installation locations of the load area 4 and the unload area 5 of the workpiece are not particularly limited.

  Next, reference numeral 19 in the figure denotes a static elimination / dust removal device. That is, the coating system of the present embodiment has a static elimination / dust removal device 19 for first removing static electricity charged on the workpiece conveyed by the chain conveyor 3, dust adhering to the workpiece, and dust. In the static eliminator / dust eliminator 19, the static electricity charged on the work is first removed by a static eliminator such as a static eliminator brush and an ionizer, and then dust and dirt adhering to the work is removed by a dust eliminator such as air. Etc. are to be removed.

  Then, after removing static electricity, dust, and dust by the static eliminating / dust removing device 19, the workpiece is coated. That is, in FIG. 1, reference numeral 7 denotes an ink jet device. That is, in the coating system 1 of the present embodiment, the ink jet device 7 is disposed on the front side of the charge eliminating / dust removing device 19 as viewed in the work transport direction in the middle of the transport line 2. In this ink jet device 7, the plane portion of the work that has been transported into the ink jet device 7 by the chain conveyor 3 is painted by the ink jet method.

  Here, the ink jet device 7 will be described. In the present embodiment, the ink jet device 7 drops the ink to land on the plane portion of the work as in the ink jet device generally used for various printings. The ink supply unit 703 is connected to the head unit 701 via a supply path 702, whereby ink is supplied to the head unit 701 and dropped from the head unit 701. I am going to let you.

  In addition, since the ink supply unit 703 needs to constantly eject ink stably, in this embodiment, the inkjet device 7 includes an ink defoaming / degassing device 704, thereby Air is prevented from entering the head portion 701.

  In this embodiment, the head portion 701 has a plurality of nozzle portions formed in an ink chamber filled with ink. By applying a voltage to the piezo element in contact with the ink chamber, the head portion 701 uses the piezo element to generate ink. Although vibration is applied to the wall of the chamber so that the ink in the ink chamber is dropped from the nozzle portion, this method is a well-known method and will not be described in detail.

  In addition, the coating system of the present embodiment includes an image processing unit 18, and ink is landed on the plane portion of the work in accordance with the data processed by the image processing unit 18. And surely it enables painting.

  Furthermore, in the present embodiment, the ink jet device 7 uses UV curable ink that does not contain an organic solvent, which can reduce the cost by eliminating the step of heating and drying the ink landed on the workpiece. It is said.

  In the figure, reference numeral 705 denotes a head maintenance device. That is, in the ink jet apparatus 7, it is necessary to prevent ink clogging in the head portion 701 and to discharge ink stably at all times. Therefore, in the coating system of this embodiment, the head maintenance apparatus 705 is included in the ink jet apparatus 7. It has. In this embodiment, the head maintenance device 705 cleans the ink ejection surface of the head portion 701 periodically or at any time while ejecting an appropriate amount of ink or using wiping.

  Next, 8 in FIG. 1 is a painting booth. That is, in the coating system 1 of the present embodiment, a coating booth 8 is disposed in the middle of the transport line 2 on the front side of the ink jet device 7 as viewed in the transport direction. Thus, it is possible to paint the side portion of the workpiece that has been conveyed into the painting booth 8.

  Here, the coating booth 8 will be described. In the present embodiment, the coating booth 8 is provided in an arrangement in which the chain conveyor 3 can pass in the middle of the transfer line 2, thereby fixing the workpiece. The workpiece supply table 6 is conveyed into the painting booth 8 by the chain conveyor 3, and after being painted in the painting booth 8, it is conveyed again by the chain conveyor 3 and is taken out from the painting booth 8.

  In this embodiment, a support rail 9 is provided in the painting booth 8, and a robot arm 10 is attached to the support rail 9 so as to be movable on the support rail 9. .

  A support arm 1101 is movably connected to the robot arm 10, and a plurality of spray guns 1102 are movably attached to the support arm 1101, and the support arm 1101 and the support arm 1101 are mounted. The paint spraying means 11 is configured by a spray gun 1102 attached to the.

  Each spray gun 1102 is connected to the other end of a paint hose to which a paint supply means (not shown) is connected to one end, so that paint can be sprayed from the spray gun 1102, and at this time, the support arm 1101. Alternatively, the spray gun 1102 can be moved or rotated to reliably paint the side surface portion of the workpiece.

  Further, in the present embodiment, the paint sprayed from the spray gun 1102 is a UV curable paint that does not contain an organic solvent, similar to the ink used in the ink jet apparatus 7. It is possible to eliminate the process of performing. However, it is not always necessary to use a paint that does not contain an organic solvent as a paint to be used in the painting booth 8, and it may be applied using a paint that contains an organic solvent. An area for heating and drying the paint deposited on the workpiece may be provided.

  In the painting system of the present invention, it is not always necessary to use a robot arm. For example, a floor-mounted painting robot or the like may be used, and the number of spray guns is not particularly limited.

  In the present embodiment, the coating booth 8 is disposed in front of the ink jet device 7 when viewed in the transport direction of the transport line 2, but it is not always necessary to use such an arrangement. 7, the side surface portion of the workpiece may be painted in the painting booth 8, and then the planar portion of the workpiece may be painted in the inkjet device 7.

  In the figure, reference numeral 13 denotes an ink jet printing mechanism. That is, in the coating system 1 of the present embodiment, the ink jet printing mechanism 13 is disposed in the middle of the transport line 2 on the front side of the ink jet apparatus 7 as viewed in the transport direction. Printing is possible, and not only painting of workpieces but also design printing on workpieces is possible.

  The ink jet printing mechanism 13 in the present embodiment has the same configuration as that of a normal ink jet printing apparatus, such as a color printing means, an image input unit, a UV curing means or a curing means using a heat source, an ink defoaming / degassing means, Head maintenance means and the like are provided as standard, a desired design is created by image processing, ink is landed on the workpiece based on the created design, and printing on the planar portion of the workpiece is thereby performed.

  Therefore, in the present embodiment, since the work can be printed as well as the work in the process of transporting the work once by the transport line 2, the print line and the paint line are separately provided. Unlike the case where the workpiece is put into the paint line by handling after the workpiece is printed in the machine, it is possible to prevent dust from adhering to the workpiece during handling and lowering the yield, thereby improving the production speed while improving the yield. In addition, it is possible to print and paint the work in a space-saving manner, and further, since the print design is performed by image processing, correction is easy.

  Next, in the figure, reference numeral 12 denotes a UV curing device. That is, in the coating system 1 of the present embodiment, a UV curing device is disposed in front of the coating booth 8 in the middle of the transport line 2. In the UV curing device 12, UV is applied to the workpiece conveyed by the conveyance line 2, and the ink landed on the planar portion of the workpiece in the inkjet device 7 and the workpiece in the coating booth 8. The paint deposited on the side surface is to be cured.

  In this embodiment, the UV curing device 12 includes a UV irradiation unit 1201 for irradiating UV as a light source, as in a general UV curing device, and the UV irradiation unit 1201 is directed toward the workpiece. It is supposed to be irradiated with UV.

  Next, the control system of the coating system 1 of the present embodiment will be described. FIG. 2 is a block diagram showing the configuration of the coating system 1 of the present embodiment. In FIG. In this embodiment, the control unit 13 uses a microcomputer.

  The controller 13 is connected to the chain conveyor 3, the robot arm 10, the paint spraying means 11, the paint supply means 14 for supplying paint to the spray gun 1102, the UV curing device 12, and the power supply 17. Are connected to the operation unit 15 and the display unit 16, and the head unit 701, the ink supply unit 703, the ink defoaming / deaeration device 704, the head maintenance device 705, and the inkjet in the inkjet device 7. The printing mechanism 13 and the like are connected, and thereby the entire system is operated under the control of the control unit 13.

  Next, an example of a method for coating a portable terminal casing of the present invention using the coating system 1 of the present example configured as described above (hereinafter simply referred to as “coating method”) will be described. When a workpiece is to be painted using the coating system 1, the chain conveyor 3 is transported, and the workpiece is transported in the load area 4 along with the movement of the chain conveyor. An unpainted workpiece is fixed to the supply table 6.

  First, the static elimination / dust removal device 19 removes static electricity charged on the workpiece, dust and dirt adhering to the workpiece, and then the ink jet printing mechanism 13 preliminarily images the planar portion of the workpiece. The processed design is printed by inkjet method.

  Then, in the ink jet device 7, the planar portion of the work being conveyed by the chain conveyor 3 is painted. In other words, the ink is dropped from the head portion 701 onto the flat portion of the work to land the ink on the flat portion of the work, thereby painting the flat portion of the work. At this time, the control unit 13 controls the operation of the ink supply unit 703, the piezo element, and the like so that the ink is surely distributed over the entire plane portion of the workpiece.

  Next, with respect to the work that has been transported to the coating booth 8 by the chain conveyor 3 after the plane portion has been painted in the ink jet device 7, the side portion is painted in the painting booth 8 by the spray method using the spray gun 1102. .

  That is, in the painting booth 8, with respect to the work that has been conveyed into the painting booth 8, the paint is sprayed from the spray gun 1102 toward the side surface portion, thereby coating the side surface portion of the work.

  When painting in the painting booth 8, the control unit 13 controls the robot arm 10, the support arm 1101 and the spray gun 1102 to move the spray gun 1102 at various angles, and further, the painting booth 8 as appropriate. The workpiece supply table 6 located inside is rotated or moved, thereby reliably coating the side portion of the workpiece.

  Next, the plane part is painted in the ink jet device 7 and the side part is coated and transported in the coating booth 8. UV is irradiated to the side portion. Thereby, the ink deposited on the plane portion of the workpiece by the ink jet method and the paint deposited on the side portion of the workpiece by the spray gun 1102 are cured by UV.

  After that, in this way, the plane portion is painted by the ink jet method, the side portion is painted by the spray method, and the discharged ink and paint are UV cured. Remove from 2.

  Thus, in the coating system of this embodiment and the coating method using the same, when painting the casing of the portable terminal, the plane portion is painted by the inkjet method, and the side portion is painted by the spray method. Compared with the conventional painting system and painting method of painting a workpiece with a spray gun, it is possible to reduce the waste of paint by reducing the amount of paint that becomes paint mist without depositing on the workpiece, and accordingly, It is possible to suppress the air conditioning energy required for collecting the paint mist.

  Further, in the mobile terminal casing coating system and the mobile terminal casing coating method of the present embodiment, the side surface portion of the work is coated with a spray gun in the same manner as in the conventional method, so ink is applied only in the vertical direction. It is possible to solve the drawbacks of the ink jet system that cannot drop the ink and to coat the side surface of the workpiece.

  Therefore, according to the mobile terminal casing coating system and the mobile terminal casing coating method of the present embodiment, while reducing waste of paint and energy for air conditioning, It is possible to paint the surface of a three-dimensional workpiece.

  Further, in this embodiment, since the inkjet printing mechanism 13 is provided to enable not only painting of the workpiece but also printing of a desired design, painting and printing are performed in the process of conveying the workpiece once by the conveyance line. It can be performed.

  For this purpose, the mobile terminal casing coating system and the mobile terminal casing coating method according to the present embodiment are provided with a printing line and a coating line separately, and after the workpiece is printed on the printing line, the workpiece is handled by handling. Unlike the case where it is applied to the painting line, it is possible to increase the production speed while preventing the adhesion of dust to the workpiece and improving the yield, and it is possible to print and paint the workpiece in a small space. Furthermore, since the printing design is performed by image processing, correction is easy.

  According to the mobile terminal casing coating system and the coating method using the same according to the present invention, it is possible to reduce the waste of the paint and to coat the side of the workpiece while reducing the air-conditioning energy for collecting the paint mist. Therefore, the present invention can be applied to the entire painting of a casing for a portable terminal.

DESCRIPTION OF SYMBOLS 1 Coating system 2 Conveyance line 3 Chain conveyor 4 Load area 5 Unload area 6 Work supply table 7 Inkjet device 701 Head unit 702 Supply path 703 Ink supply unit 704 Ink defoaming / deaeration device 705 Head maintenance device 8 Coating booth 9 Support Rail 10 Robot arm 11 Paint spraying means 1101 Support arm 1102 Spray gun 12 UV curing device 1201 UV irradiation means 13 Inkjet printing mechanism 15 Operation unit 16 Display unit 17 Power supply 18 Image processing device 19 Static elimination / dust removal device

Claims (5)

A portable terminal casing coating system for coating a workpiece that is transported on the conveyance line (2), comprising a conveyance line (2) for conveying a workpiece,
A neutralization / dust removal device (19) for removing static electricity on the workpiece and removing dust adhering to the workpiece, and an inkjet device (7) for coating the workpiece by an inkjet method in the middle of the transfer line (2) , A painting booth (8) for painting the work by spraying the atomized paint toward the work, and a UV curing device (12) for hardening the paint deposited on the work,
The ink jet device (7) includes a head unit (701) for applying ink to a flat part of the work to coat the flat part of the work, and defoaming and degassing for defoaming and degassing the ink. A device (704) and a head maintenance device (705) for preventing ink clogging,
The coating booth (8) includes paint spraying means (11) for spraying paint toward the side surface portion of the workpiece.
The UV curing device (12) irradiates the work with UV to cure the ink landed on the work in the ink jet device (7) and the paint deposited on the work in the painting booth (8). With irradiation means (1201),
The plane portion of the workpiece being conveyed on the conveyance line (2) is coated by the inkjet method in the inkjet apparatus (7), and the side portion of the workpiece being conveyed on the conveyance line (2) is painted. In the booth (8), the UV is applied by the paint spraying means (11), and the ink sprayed on the plane part of the work by the ink jet method and the paint sprayed on the side face part of the work by the paint spraying means (11). A coating system for a casing for a portable terminal, which is cured by UV irradiation in a curing device (12). A portable terminal casing coating system for coating a workpiece that is transported on the conveyance line (2), comprising a conveyance line (2) for conveying a workpiece,
In the middle of the transfer line (2), a static elimination / dust removal device (19) for removing static electricity from the workpiece and removing dust adhering to the workpiece, and an inkjet for printing an image processed design on the workpiece by an inkjet method. A printing mechanism (13), an inkjet device (7) for coating a workpiece by an inkjet method, a coating booth (8) for coating the workpiece by spraying atomized paint toward the workpiece, a workpiece A UV curing device (12) for curing the paint deposited on the
The ink jet device (7) includes a head unit (701) for applying ink to a flat part of the work to coat the flat part of the work, and defoaming and degassing for defoaming and degassing the ink. A device (704) and a head maintenance device (705) for preventing ink clogging,
The coating booth (8) includes paint spraying means (11) for spraying paint toward the side surface portion of the workpiece.
The UV curing device (12) irradiates the work with UV to cure the ink landed on the work in the ink jet device (7) and the paint deposited on the work in the painting booth (8). With irradiation means (1201),
The ink-jet printing mechanism (13) prints the image-processed design on the plane portion of the workpiece conveyed on the conveyance line (2), and the plane of the workpiece conveyed on the conveyance line (2). The portion is coated by the ink jet method in the ink jet device (7), and the side surface portion of the work transported on the transport line (2) is painted by the paint spraying means (11) in the coating booth (8). And the ink applied to the plane portion of the work by the ink jet method and the paint applied to the side surface of the work by the paint jetting means (11) are cured by UV irradiation in the UV curing device (12). A coating system for portable terminal casings.   3. The mobile terminal casing coating system according to claim 1, wherein ink and paint not containing an organic solvent are used in the inkjet device and the coating booth. A transfer line (2) for transferring workpieces;
A static elimination / dust removal device (19) disposed on the transfer line (2) for removing static electricity from the workpiece and removing dust adhering to the workpiece;
In the middle of the transport line (2), a head portion (701) is provided on the front side of the charge removal / dust removal device (19) as viewed in the transport direction for dropping ink and landing on a workpiece. Inkjet device (7),
In the middle of the transport line (2), a painting booth (8) provided with a paint spraying means (11) for spraying paint disposed on the front side of the charge eliminating / dust removing device (19) viewed in the transport direction. )When,
In the middle of the conveyance line (2), the inkjet device (7) and the painting booth (8) disposed in front of the inkjet device (7) and the painting booth (8) as viewed in the conveyance direction are used for workpieces. A UV curing device (12) provided with UV irradiation means for curing the deposited ink, and a coating system comprising:
The plane part of the work being transported on the transport line (2) is coated by the ink jet system in the ink jet apparatus (7),
The side surface portion of the work being conveyed on the conveyance line (2) is painted by the paint spraying means (11) in the painting booth (8),
Thereafter, the ink deposited on the plane portion of the workpiece by the ink jet method and the paint deposited on the side portion of the workpiece by the coating material spraying means (11) are cured by UV irradiation in the UV curing device (12). A method for painting a casing for a portable terminal, characterized in that: A transfer line (2) for transferring workpieces;
A static elimination / dust removal device (19) disposed on the transfer line (2) for removing static electricity from the workpiece and removing dust adhering to the workpiece;
In the middle of the conveyance line (2), an inkjet printing mechanism (13) for printing an image-processed design on a workpiece by an inkjet method, which is disposed in front of the static elimination / dust removal device (19) as viewed in the conveyance direction. )When,
In the middle of the transport line (2), a head portion (701) is provided on the front side of the static elimination / dust removal device (19) as viewed in the transport direction for dropping ink and landing on the workpiece. An inkjet device (7);
In the middle of the transport line (2), a painting booth (8) provided with a paint spraying means (11) for spraying paint disposed on the front side of the charge eliminating / dust removing device (19) viewed in the transport direction. )When,
In the middle of the conveyance line (2), the inkjet device (7) and the painting booth (8) disposed in front of the inkjet device (7) and the painting booth (8) as viewed in the conveyance direction are used for workpieces. A UV curing device (12) provided with UV irradiation means for curing the deposited ink, and a coating system comprising:
The image processed design is printed on the plane portion of the work being conveyed on the conveyance line (2) by the inkjet printing mechanism (13),
The plane part of the work being transported on the transport line (2) is coated by the ink jet system in the ink jet apparatus (7),
The side surface portion of the work being conveyed on the conveyance line (2) is painted by the paint spraying means (11) in the painting booth (8),
Thereafter, the ink deposited on the plane portion of the workpiece by the ink jet method and the paint deposited on the side portion of the workpiece by the coating material spraying means (11) are cured by UV irradiation in the UV curing device (12). A method for painting a casing for a portable terminal, characterized in that:

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