WO2013121565A1 - Dispositif d'impression à fourniture de revêtement - Google Patents

Dispositif d'impression à fourniture de revêtement Download PDF

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Publication number
WO2013121565A1
WO2013121565A1 PCT/JP2012/053720 JP2012053720W WO2013121565A1 WO 2013121565 A1 WO2013121565 A1 WO 2013121565A1 JP 2012053720 W JP2012053720 W JP 2012053720W WO 2013121565 A1 WO2013121565 A1 WO 2013121565A1
Authority
WO
WIPO (PCT)
Prior art keywords
paint
circulation pump
print head
tank
circulation
Prior art date
Application number
PCT/JP2012/053720
Other languages
English (en)
Japanese (ja)
Inventor
繁 中島
Original Assignee
株式会社伊万里鉄鋼センター
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社伊万里鉄鋼センター filed Critical 株式会社伊万里鉄鋼センター
Priority to PCT/JP2012/053720 priority Critical patent/WO2013121565A1/fr
Priority to JP2012519834A priority patent/JP5055512B1/ja
Publication of WO2013121565A1 publication Critical patent/WO2013121565A1/fr

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Classifications

    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • 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
    • B05B15/58—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter preventing deposits, drying-out or blockage by recirculating the fluid to be sprayed from upstream of the discharge opening back to the supplying means
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • 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
    • B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
    • B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades

Definitions

  • the present invention relates to a paint supply printing apparatus that supplies a print to a print head for printing.
  • the paint supply and application device that applies paint to the plate material, etc., connects the paint circulation path to the tank pressurization system that pressurizes the paint in the paint tank and supplies it to the application head via a supply tube
  • a paint circulation system in which a paint supply path from the paint circulation path to the coating head is branched.
  • an accumulator is provided on the downstream side of the circulation pump and on the upstream side of the branch to the print head to smooth the pulsation of the supplied paint (for example, see Patent Document 1 below).
  • the above-mentioned paint circulation system paint supply and application equipment is easy to separate and settle, and when using a paint that is easy to solidify, the accumulator installed in the paint circulation path is likely to break down and is good. There is a problem that the durability and maintainability are not obtained.
  • the pulsation of the supply paint by the circulation pump is effective in eliminating the clogging in the supply tube or removing the paint adhered to the inner surface of the supply tube, but simply removing the accumulator,
  • the spray amount of the coating head changes due to the pressure fluctuation of the supplied paint due to pulsation, which causes a problem that adversely affects the print performance of the print head.
  • the present invention relates to a paint supply printing apparatus that performs printing on a plate material or the like using paint, and an example of the problem is to cope with the above-described problem of the paint supply and application apparatus. That is, in a paint circulation type paint supply printing device, good durability and maintainability can be obtained even if the paint has the property of being easily separated / precipitated and solidified, and the pulsation of the supplied paint by the circulation pump It is an object of the present invention to prevent the printing performance from adversely affecting the printing performance.
  • a paint supply printing apparatus has at least the following configuration.
  • a sealable paint tank supplied with pressurized air, a paint circulation path connected to the paint tank, and a circulation connected to the paint circulation path for circulating the paint in the paint tank along the paint circulation path
  • a pump a print head that communicates with the paint supply path branched from the paint circulation path, and a control unit that controls a print operation of the print head and an operation of the circulation pump.
  • a paint supply printing apparatus wherein the circulation pump is stopped during a printing operation, and the circulation pump is operated when printing of the print head is stopped.
  • the circulation pump since the circulation pump is stopped during the printing operation of the print head, the pulsation of the supply paint by the circulation pump does not adversely affect the printing of the print head.
  • the circulation pump operates to circulate the paint along the paint circulation path, so that the proper fluidity of the paint can be maintained even when using paint that is easily separated / precipitated or solidified.
  • the stirring state of the paint can be maintained.
  • the clogging of the paint in the paint circulation path can be eliminated by the pulsation of the paint supplied by the circulation pump.
  • FIG. 1 is an explanatory diagram showing the overall configuration of a paint supply / printing apparatus according to an embodiment of the present invention.
  • the paint supply printing apparatus 1 includes a paint tank 2, a paint circulation path 3, a circulation pump 4, a print head 6, and a control unit 7.
  • the paint tank 2 is provided with a lid portion 2A for charging the paint.
  • the paint tank 2 can be filled with the lid portion 2A opened, and the paint tank 2 can be closed by closing the lid portion 2A. Can be sealed.
  • the paint tank 2 is shown in a partially opened state in order to illustrate the internal structure, but is actually a cylindrical container.
  • a pressurized air supply pipe 2B communicating with the inside of the paint tank 2 is provided in the lid 2A, and a regulator 2C is provided in the pressurized air supply pipe 2B.
  • the lid 2A is provided with a safety valve 2D for releasing the pressure in the paint tank 2.
  • the pressurized air supply pipe 2B and the safety valve 2D can be provided on the side of the paint tank 2 other than the lid 2A.
  • the inside of the paint tank 2 is in a positive pressure state by the pressurized air supplied through the pressurized air supply pipe 2 ⁇ / b> B during operation for supplying the paint to the print head 6.
  • the paint tank 2 is provided with a stirring means for stirring the paint that easily separates and settles.
  • the stirring means the paint tank 2 is made of a nonmagnetic material, and a non-contact stirrer 10 is provided in the paint tank 2 so that the non-contact stirrer 10 is driven to rotate in a non-contact manner.
  • a non-contact stirring means in which the paint tank 2 is disposed is used. By using such a non-contact stirring means, the paint in the paint tank 2 can be stirred while the paint tank 2 is kept sealed.
  • the paint circulation path 3 can be constituted by a tube or a pipe having both ends connected to the paint tank 2, and the inlet end 3 ⁇ / b> A and the outlet end 3 ⁇ / b> B of the paint circulation path 3 are arranged in the paint tank 2.
  • the inlet end 3 ⁇ / b> A and the outlet end 3 ⁇ / b> B are accommodated in one paint filter 12 in the paint tank 2.
  • a circulation pump 4 is connected to the paint circulation path 3.
  • the circulation pump 4 applies pressure for circulating the paint in the paint tank 2 along the paint circulation path 3.
  • a diaphragm pump can be used as the circulation pump 4.
  • the paint circulation path 3 is provided with one or a plurality of branch portions 3C, and the print head 6 communicates with the paint supply path 5 branched from the branch portions 3C.
  • a plurality of paint supply paths 5 are branched from the branch portion 3C, and the tip of each paint supply path 5 is connected to the paint spray gun 6A of the print head 6.
  • the paint spray gun 6A is controlled by the control unit 7 and can perform printing by applying a dot matrix paint on the print surface.
  • the control unit 7 controls the printing operation of the print head 6 and the operation of the circulation pump 4 by controlling the spraying operation of the paint spray gun 6A as described above.
  • FIG. 2 is an explanatory diagram showing the basic control operation of the control unit 7.
  • the control unit 7 stops (OFF) the circulation pump 4 when the print head 6 is printing (when the ejection operation is ON), and operates the circulation pump 4 when the print head 6 is stopped (when the ejection operation is OFF) ( ON).
  • the lid 2A is closed to ensure airtightness in the paint tank 2. Since the paint supply printing apparatus 1 according to the embodiment of the present invention employs the non-contact stirring means, the airtightness in the paint tank 2 can be improved, and the paint and air in the paint tank 2 come into contact with each other. Can be reduced as much as possible. As a result, the change in dilution concentration due to hardening or gelation of the paint or solvent volatilization due to stirring can be minimized. Moreover, since the washing
  • pressurized air of a constant pressure is supplied from the pressurized air supply pipe 2B, and the inside of the paint tank 2 is maintained in a constant pressure state.
  • a regulator 2C is provided in the pressurized air supply pipe 2B, and the pressure applied in the paint tank 2 is adjusted to be constant. Then, the print head 6 is operated by a control signal from the control unit 7 in a state where the paint in the paint tank 2 is sufficiently stirred and circulated.
  • a plurality of paint spray guns 6A arranged in parallel in a direction intersecting the uniaxial direction is intermittently ejected with a controlled timing with respect to the print target surface moving in the uniaxial direction. Dot matrix-like printing is performed.
  • the control unit 7 stops the operation of the circulation pump 4 during the printing operation of the print head 6 on which one character or a series of plural characters are printed. While the circulation pump 4 is stopped, the paint is supplied from the paint tank 2 to the print head 6 by the pressure of the pressurized air supplied into the paint tank 2.
  • the pulsation of the supplied paint is stopped by stopping the circulation pump 4, and the paint is supplied to the print head 6 with a stable pressure of pressurized air, so that the paint injection from the paint injection gun 6A is performed with the set injection amount. Made.
  • the control unit 7 continues the operation of the circulation pump 4. Thereby, the pulsation of the supplied paint caused by the operation of the circulation pump 4 occurs in the paint circulation path 3, and the paint to be precipitated in the paint circulation path 3 or the circulation pump 4 can be effectively stirred and moved. .
  • an intermittent drive means 20 for intermittently driving the circulation pump 4 and the magnetic drive unit 11 is provided. ing.
  • the intermittent drive means 20 intermittently drives the circulation pump 4 and the magnetic drive unit 11 at set time intervals at night or holidays when the print head 6 is not in operation.
  • the circulation direction in the paint circulation path 3 by the circulation pump 4 is such that the primary side (suction side) of the circulation pump 4 is connected to the paint tank 2 side, and the secondary side (discharge side) is connected to the branch part 3C side.
  • the primary side (suction side) of the circulation pump 4 is connected to the branch portion 3C, and the secondary side (discharge side) of the circulation pump 4 is connected. Can be connected to the paint tank 2 side.
  • the paint supply / printing apparatus 1 having such characteristics can avoid the deterioration of the printing performance due to the pulsation pressure of the circulation pump 4 without providing an accumulator (pulsation preventer) in the paint circulation path 3.
  • the paint supply printing apparatus 1 according to the embodiment of the present invention can have both the printing performance of the print head 6, the risk of equipment damage reduction, and the improvement of maintenance.
  • the control unit 7 stops the circulation pump 4 when a signal is generated during printing. Therefore, the paint supply pressure applied to the print head 6 during printing is the regulator 2C. It becomes equal to the pressure in the paint tank 2 set to a constant value. As a result, the coating gun 6A can discharge the coating with a constant supply pressure, and high-quality printing with a uniform printing dot diameter can be obtained.
  • the printing time can be set to a time that hardly affects the separation or precipitation of the paint, so even if the circulation pump 4 is temporarily stopped, the quality of the paint is deteriorated or the maintainability of the paint circulation path 3 is deteriorated. The problem does not occur.
  • the paint circulation path 3 actively uses the pulsation pressure of the circulation pump 4. And clogging in the circulation pump 4 can be performed. Further, it is not necessary to increase the tube diameter of the paint circulation path 3 in order to suppress the pulsation of the supplied paint, and the tube system of the paint circulation path 3 can be made thin without requiring an accumulator. The paint flow rate can be increased and the amount of paint circulation can be minimized. As a result, problems such as separation / precipitation of the paint in the paint circulation path 3 and the circulation pump 4 can be fundamentally eliminated.

Landscapes

  • Coating Apparatus (AREA)
  • Ink Jet (AREA)

Abstract

La présente invention est apte à obtenir une durée de vie et une aptitude à la maintenance favorables même avec des revêtements qui se séparent/se précipitent facilement ou qui ont la propriété de se solidifier facilement, et élimine les effets défavorables sur les performances d'impression de la pulsation du revêtement fourni par la pompe de circulation. A cet effet, l'invention porte sur un dispositif, qui comporte : un réservoir de revêtement pouvant être étroitement hermétiquement scellé (2), auquel de l'air comprimé est fourni ; un trajet de circulation de revêtement (3) qui est relié au réservoir de revêtement (2) ; une pompe de circulation (4) qui est reliée au trajet de circulation de revêtement (3) et qui fait circuler le revêtement à l'intérieur du réservoir de revêtement (2) le long de la trajectoire de circulation de revêtement (3) ; une tête d'impression (6) qui communique avec des trajectoires de fourniture de revêtement (3) qui se ramifient à partir de la trajectoire de circulation de revêtement (3) ; et une unité de commande (7) qui commande l'action d'impression de la tête d'impression (6) et l'action de la pompe de circulation (4). L'unité de commande (7) arrête la pompe de circulation (4) quand la tête d'impression (6) effectue une impression et actionne la pompe de circulation (5) quand l'impression par la tête d'impression (6) est arrêtée.
PCT/JP2012/053720 2012-02-16 2012-02-16 Dispositif d'impression à fourniture de revêtement WO2013121565A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2012/053720 WO2013121565A1 (fr) 2012-02-16 2012-02-16 Dispositif d'impression à fourniture de revêtement
JP2012519834A JP5055512B1 (ja) 2012-02-16 2012-02-16 塗料供給印字装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/053720 WO2013121565A1 (fr) 2012-02-16 2012-02-16 Dispositif d'impression à fourniture de revêtement

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WO2013121565A1 true WO2013121565A1 (fr) 2013-08-22

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018108562A1 (fr) * 2016-12-14 2018-06-21 Dürr Systems Ag Dispositif de revêtement et procédé de fonctionnement associé
US11167297B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent
US11167302B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Coating device and associated operating method
US11167308B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent on a component
US11203030B2 (en) 2016-12-14 2021-12-21 Dürr Systems Ag Coating method and corresponding coating device
US11298717B2 (en) 2016-12-14 2022-04-12 Dürr Systems Ag Print head having a temperature-control device
US11338312B2 (en) 2016-12-14 2022-05-24 Dürr Systems Ag Print head and associated operating method
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11944990B2 (en) 2016-12-14 2024-04-02 Dürr Systems Ag Coating device for coating components
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method

Citations (9)

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JPH04135664A (ja) * 1990-09-26 1992-05-11 Trinity Ind Corp 水性塗料の塗料供給装置
JPH11342634A (ja) * 1998-06-01 1999-12-14 Brother Ind Ltd インクジェットプリンタ
JP2002292902A (ja) * 2001-03-30 2002-10-09 Fuji Photo Film Co Ltd インクジェット式印刷方法及び印刷装置
JP2003300000A (ja) * 2002-03-29 2003-10-21 Nordson Corp 液体吐出方法及び装置
JP2006062225A (ja) * 2004-08-27 2006-03-09 Fuji Photo Film Co Ltd インクジェット記録装置
JP2007137026A (ja) * 2005-11-22 2007-06-07 Fujifilm Corp 液体吐出装置および液体攪拌方法
JP2008188963A (ja) * 2007-02-08 2008-08-21 Roland Dg Corp インクジェットプリンタにおけるインク供給システム
JP2008246860A (ja) * 2007-03-30 2008-10-16 Kyocera Mita Corp インクジェット記録装置
JP2011068097A (ja) * 2009-09-28 2011-04-07 Riso Kagaku Corp 圧力調整装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007111579A (ja) * 2005-10-18 2007-05-10 Pioneer Electronic Corp 塗工装置、塗工方法、および、プラズマディスプレイパネルの製造方法
JP2009220031A (ja) * 2008-03-17 2009-10-01 Nissan Motor Co Ltd 塗装システムおよび塗料回収方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135664A (ja) * 1990-09-26 1992-05-11 Trinity Ind Corp 水性塗料の塗料供給装置
JPH11342634A (ja) * 1998-06-01 1999-12-14 Brother Ind Ltd インクジェットプリンタ
JP2002292902A (ja) * 2001-03-30 2002-10-09 Fuji Photo Film Co Ltd インクジェット式印刷方法及び印刷装置
JP2003300000A (ja) * 2002-03-29 2003-10-21 Nordson Corp 液体吐出方法及び装置
JP2006062225A (ja) * 2004-08-27 2006-03-09 Fuji Photo Film Co Ltd インクジェット記録装置
JP2007137026A (ja) * 2005-11-22 2007-06-07 Fujifilm Corp 液体吐出装置および液体攪拌方法
JP2008188963A (ja) * 2007-02-08 2008-08-21 Roland Dg Corp インクジェットプリンタにおけるインク供給システム
JP2008246860A (ja) * 2007-03-30 2008-10-16 Kyocera Mita Corp インクジェット記録装置
JP2011068097A (ja) * 2009-09-28 2011-04-07 Riso Kagaku Corp 圧力調整装置

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018108562A1 (fr) * 2016-12-14 2018-06-21 Dürr Systems Ag Dispositif de revêtement et procédé de fonctionnement associé
CN110087778A (zh) * 2016-12-14 2019-08-02 杜尔系统股份公司 涂覆装置和相关的操作方法
US11154892B2 (en) 2016-12-14 2021-10-26 Dürr Systems Ag Coating device for applying coating agent in a controlled manner
US11167297B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent
US11167302B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Coating device and associated operating method
US11167308B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent on a component
US11203030B2 (en) 2016-12-14 2021-12-21 Dürr Systems Ag Coating method and corresponding coating device
CN110087778B (zh) * 2016-12-14 2022-03-11 杜尔系统股份公司 涂覆装置和相关的操作方法
US11298717B2 (en) 2016-12-14 2022-04-12 Dürr Systems Ag Print head having a temperature-control device
US11338312B2 (en) 2016-12-14 2022-05-24 Dürr Systems Ag Print head and associated operating method
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11813630B2 (en) 2016-12-14 2023-11-14 Dürr Systems Ag Coating method and corresponding coating device
US11878317B2 (en) 2016-12-14 2024-01-23 Dürr Systems Ag Coating device with printhead storage
US11944990B2 (en) 2016-12-14 2024-04-02 Dürr Systems Ag Coating device for coating components
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method

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JP5055512B1 (ja) 2012-10-24
JPWO2013121565A1 (ja) 2015-05-11

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