JP2005319654A - Line head wiping device of inkjet recorder - Google Patents

Line head wiping device of inkjet recorder Download PDF

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Publication number
JP2005319654A
JP2005319654A JP2004138707A JP2004138707A JP2005319654A JP 2005319654 A JP2005319654 A JP 2005319654A JP 2004138707 A JP2004138707 A JP 2004138707A JP 2004138707 A JP2004138707 A JP 2004138707A JP 2005319654 A JP2005319654 A JP 2005319654A
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JP
Japan
Prior art keywords
blade
line head
wiping
nozzle
base
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Application number
JP2004138707A
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Japanese (ja)
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JP4535770B2 (en
Inventor
Yoshinori Ishimoto
Hideo Izawa
Hiroyuki Matsuba
Tetsuya Matsuzaki
Takao Namiki
孝夫 並木
秀男 井沢
哲也 松崎
浩幸 松葉
好宣 石本
Original Assignee
Matsushita Electric Ind Co Ltd
Miyakoshi Printing Machinery Co Ltd
松下電器産業株式会社
株式会社ミヤコシ
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Application filed by Matsushita Electric Ind Co Ltd, Miyakoshi Printing Machinery Co Ltd, 松下電器産業株式会社, 株式会社ミヤコシ filed Critical Matsushita Electric Ind Co Ltd
Priority to JP2004138707A priority Critical patent/JP4535770B2/en
Priority claimed from US11/115,720 external-priority patent/US7390074B2/en
Publication of JP2005319654A publication Critical patent/JP2005319654A/en
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Publication of JP4535770B2 publication Critical patent/JP4535770B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To clean a foreign substance adhering to a blade due to the wiping action by a cleaning liquid without depending on a foreign substance removing member. <P>SOLUTION: In a line head wiping device of an inkjet recorder which wipes a nozzle face of a line head 23 by moving while making the blade 13 abut with the nozzle face of the line head of the inkjet recorder in which nozzle heads are arranged in a line shape, the blade 13 is made movable to a wiping posture for abutting the nozzle face of the line head 23 and a waiting posture for separating from the line head. A spray nozzle is set for jetting the cleaning liquid towards the blade in the waiting posture to a position opposite to a tip of the blade in the waiting posture. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides a line head in which a plurality of nozzle heads each having a plurality of ink discharge nozzles and having a strip shape on the print surface side are arranged in a line in a slanted manner with respect to the arrangement direction. The present invention relates to a line head wiping device for an ink jet recording apparatus comprising:

  An ink jet recording apparatus using a line head is liable to cause deterioration in print quality due to clogging of the ink discharge nozzles due to deteriorated ink or intrusion of dust into the ink discharge nozzles. Need to wipe. A blade is used as this type of wiping device, and the nozzle surface of the line head is wiped by moving the blade while elastically deforming the nozzle surface of the line head.

  At this time, foreign matter such as ink wiped from the nozzle surface of the line head adheres to the tip of the blade. If this is left as it is, the foreign matter will again adhere to the head nozzle surface of the line, so the foreign matter must be removed periodically.

  As a conventional removing means for removing foreign matter from the blade, the foreign matter adhering to the blade is moved to the foreign matter removing member by relatively moving the blade tip in contact with the foreign matter removing member. It is removed by rubbing (for example, see Patent Document 1).

JP 2001-105612 A

  In the conventional wiping device, the foreign matter adhering to the blade is rubbed and removed to the foreign matter removing member. Therefore, the foreign matter is transferred to and attached to the foreign matter removing member. However, there is a problem in that the foreign matter is always attached, and the foreign matter is dropped by vibration or the like and scattered around to contaminate the surroundings.

  The present invention solves the above-described problems of the prior art, and uses a foreign matter removing member that causes foreign matter adhering to the blade by wiping operation not to stay around the blade, that is, to cause foreign matter to scatter around. In order to provide a line head wiping device for an ink jet recording apparatus capable of completely removing foreign matter from the blade, the apparatus of the invention according to claim 1 is an ink jet recording in which nozzle heads are arranged in a line. In a line head wiping device of an ink jet recording apparatus that wipes the nozzle surface of the line head by moving the blade against the nozzle surface of the line head of the apparatus, the wiping of contacting the blade with the nozzle surface of the line head Posture and standby posture separated from the line head And movable, so a position opposing to the tip of the blade of the standby state, the structure in which a spray nozzle for injecting a cleaning liquid toward the blade of the standby state is in.

  In the line head wiping device of the ink jet recording apparatus having the above-described configuration, the wiping roll that comes into contact with the wiping surface of the blade in the standby posture is provided so as to be rotatable and capable of rotating and contacting the wiping surface of the blade. .

  In the invention apparatus according to the first aspect, foreign matter such as ink adhering to the blade by wiping the line head is not directly caused by the foreign matter removing member, but directly by the cleaning liquid ejected from the spray nozzle in the standby posture. Thus, contamination around the blade due to scattering of foreign matter from the foreign matter removing member can be prevented.

  In addition, in the invention apparatus according to claim 2, in addition to the cleaning by the spray nozzle, the wiping surface of the blade can be wiped by a wiping roll, and the blade after cleaning by the cleaning liquid can be kept clean, so that the parts, etc. The maintainability of the product is improved and the quality of the product can be kept good.

  1 and 2 are a side view and a plan view schematically showing a line head wiping apparatus A according to the present invention. In FIG. This is a swivel mounted so as to be capable of swiveling. The swivel base 2 can be fixed to the base 1 with a bolt 3 in an arbitrary swivel posture.

  In the figure, reference numeral 4 denotes a saddle base provided horizontally on the swivel base 2, and a slide base 5 is guided horizontally by two rails 6, 6 provided on the saddle base 4 on the saddle base 4. It is placed so that it can reciprocate in the direction. The sliding table 5 is connected to a rodless cylinder 7 provided on the saddle table 4, and reciprocates by the operation of the rodless cylinder 7.

  In the figure, reference numeral 9 denotes a blade base placed on the upper surface of the slide base 5, and this blade base 9 is supported by a support shaft 10 at one end in a direction orthogonal to the slide direction of the slide base 5. It is supported so as to be swingable in the horizontal direction. A fixed handle 11 is provided at the other end of the blade base 9, and the fixed handle 11 is provided in an arc-shaped groove 12 provided around the support shaft 10 at the other end of the slide base 5. The blade base 9 can be fixed in an arbitrary posture within the range of the arc-shaped groove 12 by engaging and fastening the fixed handle 11.

  In the figure, reference numeral 13 denotes a wiping blade made of a flexible material such as a rubber material. The blade 13 is a plate having a predetermined length, and is formed on one side of the width direction. The reinforcing plate 14 is fixed. A pair of rotating members 15, 15 are fixed to both ends of the reinforcing plate 14, and an intermediate portion of both the rotating members 15, 15 rotates to a pair of brackets 16, 16 provided on the blade base 9. It is supported freely. Further, the other ends of the rotating members 15, 15 are connected to the piston rod 18 of the cylinder devices 17, 17 provided on the blade base 9. 15 is rotated, and the tip of the blade 13 is moved up and down in an arc shape to be in a wiping posture and a standby posture. An ink receiver 19 is provided below the blade 13.

  The base 1 is installed via a jack device 22 comprising a screw shaft 20 and a nut member 21 that is screwed to the floor surface. By operating the nut member 21 of the jack device 22, the entire device is By moving up and down, the position of the blade 13 in the height direction can be adjusted. The jack device 22 may be provided not at a position where the base 1 is moved up and down, but at a position where the slide base 5 is moved up and down relative to the swivel base 2. In short, the blade base 9 supporting the blade 13 is moved up and down. Provide a position where it can move. Further, the configuration is not limited to the above configuration.

  The line head wiping apparatus A having the above configuration is installed on the side of the ink jet recording apparatus, and the line head 23 of the ink jet recording apparatus is moved from the printing position to a maintenance position perpendicular to the printing direction (main scanning direction). The state is as shown in FIG. 2, and the lower surface thereof is positioned above the line head wiping apparatus A.

  The shape of the line head 23 as viewed from below is as shown in FIG. 3, and a plurality of strip-like nozzle heads 24 are arranged side by side in a posture inclined at a predetermined angle θ with respect to the arrangement direction. Yes. The nozzle head 24 is provided with a large number of ink ejection nozzles (not shown) substantially parallel to the long sides thereof.

  A support base 26 is provided at a position where one side of the base 1 does not interfere with the swivel base 2, and the blade cleaning device 27 moves on the support base 26 in a direction perpendicular to the swivel center of the swivel base 2. It is possible.

  The blade cleaning device 27 includes a slide base 28 supported by the support base 26 so as to be slidable by the rails 26a and 26a, and a pair of brackets 29 and 29 provided on the slide base 28. A wipe composed of a plurality of spray nozzles 30 provided toward the blade 13 and a nonwoven fabric rotatably supported at the tips of a pair of arms 31 and 31 rotatably supported by both brackets 29 and 29. A pair of cylinder devices 33, 33 that rotate a roll 32 and arms 31, 31 that support the wiping roll 32, a motor 34 that rotates the wiping roll 32, and the slide base 28 are attached to the support base 26. And a cylinder device 35 that moves.

  The spray nozzle 30 and the wiping roll 32 have a length slightly longer than the length of the blade 13, and the spray nozzle 30 ejects the cleaning liquid toward the blade 13 in the standby posture.

  The wiping roll 32 is brought into contact with and separated from the wiping surface of the blade 13 in the standby posture by rotating the arms 31 and 31 supporting the wiping roll 32 by the cylinder device 33, and this is in contact with the wiping surface. When the motor 34 is driven in the state where the cleaning liquid is attached, the cleaning liquid adhering to the wiping surface of the blade 13 by cleaning with the cleaning liquid is wiped and cleaned by the wiping roll 32.

  A wiping operation using the line head wiping apparatus A configured as described above will be described below.

  As shown in FIGS. 1 and 2, the line head 23 of the ink jet recording apparatus is moved above the line head wiping apparatus A installed at the maintenance position thereof. In this state, the swivel base 2 is swung to fix the blade 13 in a posture orthogonal to the inclination angle θ of the nozzle head 24 of the line head 23. At this time, the slide base 5 is moved to the standby position by the operation of the rodless cylinder 7 for sliding, and the blade 13 is moved to a position where it is detached from the line head 23.

  Subsequently, the cylinder devices 17 and 17 for rotation are extended to rotate the blade 13 in the upright direction, and the tip of the blade 13 is moved upward in an arc shape to obtain a wiping posture. At this time, it is confirmed whether the tip of the blade 13 has a height that interferes with the nozzle head 24 of the line head 23. The height of the blade 13 at this time is adjusted by the jack device 22.

  In this state, the reciprocating rodless cylinder 7 is operated to slide the slide base 5 along one of the rails 6 and 6 so that the blade 13 contacts the lower surface of the nozzle head 24 of the line head 23. The tip end of the nozzle head 24 moves while being bent by the amount of contact, and the lower surface of the nozzle head 24 is wiped by the blade 13.

  At this time, if the tip of the blade 13 is bent as described above, the tip of the blade 13 comes into contact with the nozzle head 24, and the blade 13 moves in the inclination direction of the nozzle head 24, so that the tip of the blade 13 is shown in FIG. The nozzle head moves along the gap in a state where it slightly enters the gap 24a between the nozzle heads. Accordingly, the ink in the gap 24a between the nozzle heads 24 is wiped together with the surface of the nozzle head 24.

  After the end of the wiping operation, the cylinder device 17 is shortened to rotate the blade 13 in the downward movement direction, and the tip of the blade 13 is moved downward in an arc shape to be in a standby posture. Next, the rodless cylinder 7 is operated in the reverse direction to move the slide 5 to a standby position where the blade 13 is disengaged from the line head 23.

  As shown in FIG. 1, the blade 13 at the standby position tilts toward the blade cleaning device 27 and assumes a standby posture. Next, the cylinder device 35 is extended to move the blade cleaning device 27 to the blade 13 side. At this time, the wiping roll 32 is raised by the extension movement of the cylinder device 33. Thereby, as shown in FIG. 1, the spray nozzle 30 faces the tip of the blade 13.

  In this state, the cleaning liquid is sprayed from the nozzle 30. Thereby, foreign matters such as ink adhering to the wiping surface of the blade 13 are removed by the cleaning liquid. Then, the waste liquid mixed with foreign matters at this time is collected by the ink receiver 19. Further, the air pressure for spraying the cleaning liquid sprayed from the spray nozzle 30 is appropriately adjusted by an air regulator.

  Next, in a state where the spraying of the cleaning liquid from the spray nozzle 30 is stopped, the wiping roll 32 is moved downward and brought into contact with the wiping surface of the blade 13 and rotated by the motor 34. As a result, the cleaning liquid adhering to the wiping surface of the blade 13 is wiped off by the wiping roll 32.

  The above-described series of operations can be automatically performed by controlling a cylinder device that operates each member via a control device.

  The blade 13 may be cleaned only by a spray nozzle, but good wiping can be performed by wiping off the ink and the cleaning liquid with the wiping roll 32 thereafter. Furthermore, better cleaning can be performed by repeating spraying of the cleaning liquid and wiping by the wiping roll 32.

It is a partially broken front view which shows the apparatus which concerns on this invention. It is a top view of the said apparatus. It is a bottom view showing a line head of an ink jet recording apparatus to which the apparatus according to the present invention is applied. It is explanatory drawing which shows the mode of the blade of the wiping part in a line wiping apparatus.

Explanation of symbols

  A ... line head wiping device, 1 ... base, 2 ... swivel base, 3 ... bolt, 4 ... saddle base, 5 ... sliding base, 6 ... rail, 7 ... rodless cylinder, 8, 18 ... piston rod, 9 DESCRIPTION OF SYMBOLS ... Blade stand, 10 ... Support shaft, 11 ... Fixed handle, 12 ... Circular groove, 13 ... Blade, 14 ... Reinforcement plate, 15 ... Rotating member, 16 ... Bracket, 17 ... Cylinder device, 19 ... Ink receptacle, 20 DESCRIPTION OF SYMBOLS ... Screw shaft, 21 ... Nut, 22 ... Jack apparatus, 23 ... Line head, 24 ... Nozzle head, 24a ... Gap, 26 ... Support stand, 27 ... Blade washing apparatus, 28 ... Moving stand, 29 ... Bracket, 30 ... Spray Nozzle, 31 ... arm, 32 ... wiping roll, 33, 35 ... cylinder device, 34 ... motor.

Claims (2)

  1. In the line head wiping device of the ink jet recording apparatus, the nozzle surface of the line head is wiped by moving the nozzle head in contact with the nozzle surface of the line head of the ink jet recording apparatus in which the nozzle heads are arranged in a line.
    The blade can be moved between a wiping position where it abuts the nozzle surface of the line head and a standby position separated from the line head. A line head wiping device for an ink jet recording apparatus, characterized in that a spray nozzle is provided.
  2. 2. The ink jet recording apparatus according to claim 1, wherein a wiping roll that comes into contact with the wiping surface of the blade in a stand-by posture together with the spray nozzle is provided so as to be rotatable and capable of contacting and separating from the wiping surface of the blade. Line head wiping device.

JP2004138707A 2004-05-07 2004-05-07 Line head wiping device for inkjet recording apparatus Active JP4535770B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004138707A JP4535770B2 (en) 2004-05-07 2004-05-07 Line head wiping device for inkjet recording apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004138707A JP4535770B2 (en) 2004-05-07 2004-05-07 Line head wiping device for inkjet recording apparatus
US11/115,720 US7390074B2 (en) 2004-05-07 2005-04-27 Methods of and apparatuses for wiping a line head in an ink jet recorder

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JP2005319654A true JP2005319654A (en) 2005-11-17
JP4535770B2 JP4535770B2 (en) 2010-09-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006104089A1 (en) * 2005-03-28 2006-10-05 Sharp Kabushiki Kaisha Device for cleaning discharge plane of fluid discharge head
US8226205B2 (en) 2006-11-08 2012-07-24 Miyakoshi Printing Machinery Co., Ltd. Wiping apparatus for print head
KR101177503B1 (en) * 2010-04-16 2012-08-28 (주) 근도테크놀러지 Ink Head Cleaning Apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0781085A (en) * 1993-09-10 1995-03-28 Canon Inc Liquid emitting device
JPH0781049A (en) * 1993-09-16 1995-03-28 Canon Inc Ink jet recording apparatus and data processing apparatus equipped therewith
JPH10146984A (en) * 1996-11-13 1998-06-02 Hewlett Packard Co <Hp> Printing head cleaning device for ink jet printer
JP2000177140A (en) * 1998-12-17 2000-06-27 Oki Data Corp Recording head cleaning mechanism
JP2000198210A (en) * 1999-01-06 2000-07-18 Canon Inc Ink-jet recording apparatus
JP2001038917A (en) * 1999-07-29 2001-02-13 Casio Comput Co Ltd Ink jet printer
JP2003011378A (en) * 2001-04-24 2003-01-15 Canon Inc Ink-jet recording apparatus and wiping method in the recording apparatus
JP2003127403A (en) * 2001-10-26 2003-05-08 Hitachi Koki Co Ltd Wiping mechanism of ink jet printer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0781085A (en) * 1993-09-10 1995-03-28 Canon Inc Liquid emitting device
JPH0781049A (en) * 1993-09-16 1995-03-28 Canon Inc Ink jet recording apparatus and data processing apparatus equipped therewith
JPH10146984A (en) * 1996-11-13 1998-06-02 Hewlett Packard Co <Hp> Printing head cleaning device for ink jet printer
JP2000177140A (en) * 1998-12-17 2000-06-27 Oki Data Corp Recording head cleaning mechanism
JP2000198210A (en) * 1999-01-06 2000-07-18 Canon Inc Ink-jet recording apparatus
JP2001038917A (en) * 1999-07-29 2001-02-13 Casio Comput Co Ltd Ink jet printer
JP2003011378A (en) * 2001-04-24 2003-01-15 Canon Inc Ink-jet recording apparatus and wiping method in the recording apparatus
JP2003127403A (en) * 2001-10-26 2003-05-08 Hitachi Koki Co Ltd Wiping mechanism of ink jet printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006104089A1 (en) * 2005-03-28 2006-10-05 Sharp Kabushiki Kaisha Device for cleaning discharge plane of fluid discharge head
US8226205B2 (en) 2006-11-08 2012-07-24 Miyakoshi Printing Machinery Co., Ltd. Wiping apparatus for print head
KR101177503B1 (en) * 2010-04-16 2012-08-28 (주) 근도테크놀러지 Ink Head Cleaning Apparatus

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