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WO2010101034A1 - Unité de chariot, dispositif d'enregistrement à éjection de liquide, et procédé de fixation de tête d'éjection de liquide - Google Patents

Unité de chariot, dispositif d'enregistrement à éjection de liquide, et procédé de fixation de tête d'éjection de liquide Download PDF

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Publication number
WO2010101034A1
WO2010101034A1 PCT/JP2010/052561 JP2010052561W WO2010101034A1 WO 2010101034 A1 WO2010101034 A1 WO 2010101034A1 JP 2010052561 W JP2010052561 W JP 2010052561W WO 2010101034 A1 WO2010101034 A1 WO 2010101034A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriage
liquid ejecting
ejecting head
head
longitudinal direction
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
Application number
PCT/JP2010/052561
Other languages
English (en)
Japanese (ja)
Inventor
哲也 村瀬
彰寛 貞木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SII Printek Inc
Original Assignee
SII Printek Inc
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 SII Printek Inc filed Critical SII Printek Inc
Publication of WO2010101034A1 publication Critical patent/WO2010101034A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B41J2/135—Nozzles
    • B41J2/145—Arrangement thereof
    • B41J2/15—Arrangement thereof for serial printing
    • 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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • 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
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01—Embodiments of or processes related to ink-jet heads
    • B41J2202/14—Mounting head into the printer

Definitions

  • the present invention relates to a carriage unit, a liquid jet recording apparatus, and a liquid jet head fixing method.
  • liquid jet recording apparatuses such as printers and fax machines that record liquid images such as ink droplets on recording paper or the like to record images and characters are known.
  • This liquid jet recording apparatus includes a liquid jet head in which a plurality of jet holes for jetting liquid are arranged on a recording surface of a recording medium.
  • the liquid ejecting head is formed in a rectangular shape when viewed from the normal direction of the recording surface of the recording medium, with the arrangement direction of the plurality of ejection holes as the longitudinal direction and the direction orthogonal to the longitudinal direction as the short direction. .
  • a carriage unit is configured with the liquid ejecting head mounted on the carriage, the carriage unit is moved in the lateral direction, and the recording medium is ejected from the liquid ejecting head while transporting the recording medium in the longitudinal direction. Thus, recording is performed on a recording medium.
  • Patent Documents 1 and 2 disclose a fixing structure that locks the liquid ejecting head with respect to the carriage in order to easily and quickly perform the mounting operation of the liquid ejecting head.
  • the present invention has been made in view of the above problems, and provides a carriage unit, a liquid jet recording apparatus, and a method for fixing a liquid jet head that can improve the positioning accuracy of the liquid jet head with respect to the carriage. With the goal.
  • a carriage unit includes a liquid ejecting head in which a plurality of ejection holes for ejecting liquid is arranged on a recording surface of a recording medium, and the liquid ejecting head being fixed.
  • a carriage unit that moves relative to and parallel to the recording surface, wherein the arrangement direction of the plurality of ejection holes in the liquid ejection head is a longitudinal direction, and a direction orthogonal to the longitudinal direction is a short side.
  • a direction perpendicular to the longitudinal direction and the short direction is a height direction, and the carriage is configured to be able to support the liquid ejecting head, and a direction intersecting the longitudinal direction and the short direction.
  • a head support member having a guide groove formed thereon, and a slide member formed with a pin movable along the guide groove and movable along the longitudinal direction;
  • the liquid ejecting head and the carriage come into contact with each other by moving the slide member along the longitudinal direction, and the positioning of the liquid ejecting head in the longitudinal direction on the carriage is performed. Is moved along the guide groove so that the liquid ejecting head is moved along the short direction of the carriage, and the liquid ejecting head is pressed by the first biasing member capable of pressing the liquid ejecting head in the width direction of the carriage.
  • a second urging member that presses the liquid jet head positions the liquid jet head in the carriage in the short direction, and presses the liquid jet head in the height direction of the carriage with respect to the carriage.
  • the liquid ejecting head is pressed against the height direction of the liquid ejecting head in the carriage.
  • the liquid ejecting head is characterized in that it is fixable configured for the carriage.
  • the liquid ejecting head moves in the longitudinal direction, the lateral direction, and the height direction in the carriage with a simple mechanism that moves the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction.
  • Directional positioning is made. Further, by pressing the liquid ejecting head with the first urging member and the second urging member, the liquid ejecting head can be surely guided in the direction of the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved.
  • After the liquid ejecting head is attached to the carriage it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved.
  • the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
  • the carriage unit of the present invention is characterized in that the second urging member is provided at a position corresponding to both sides in the longitudinal direction of the liquid jet head.
  • the second urging member by disposing the second urging member at positions corresponding to both sides in the longitudinal direction of the liquid ejecting head, the second urging member can be pressed with a substantially equal force against the longitudinal direction of the liquid ejecting head, The positioning accuracy can be further improved.
  • the carriage may include a housing portion that houses at least a part of the liquid ejecting head, and one of the liquid ejecting head and the housing portion in the longitudinal direction and the short direction.
  • a first protrusion protruding in the longitudinal direction and a second protrusion protruding in the short direction are formed on the side surface of the liquid ejecting head, and the first protrusion and the second protrusion are connected to the liquid ejecting head and the housing.
  • the liquid ejecting head is configured to be positioned in the longitudinal direction and the lateral direction with respect to the carriage by abutting against the other side surface of the portion.
  • the liquid ejecting head can be accurately positioned.
  • the housing portion may include a restricting portion that can contact the ejecting surface of the liquid ejecting head on which the ejecting hole is formed, and the ejecting surface contacts the restricting portion.
  • the liquid ejecting head is configured to be positioned in the height direction with respect to the carriage by being in contact therewith.
  • the restricting portion formed in the housing portion is positioned in contact with the ejection surface of the liquid ejecting head, the liquid ejecting head can be accurately positioned.
  • a rotation shaft is provided along the short direction of the slide member, a gear portion is formed at least in part, and the rotation shaft is disposed at the rotation center of the gear portion.
  • a rotating member in which a long hole in which the rotation shaft is movable in the longitudinal direction is connected to the head support member, and a gear portion that meshes with the gear portion is along the longitudinal direction.
  • the rotation member that rotates the liquid ejecting head with respect to the carriage is disposed, and the liquid ejecting head can be rotated with respect to the carriage only by moving the slide member along the longitudinal direction. Since it comprised, the liquid ejecting head can be rotated with a simple mechanism. In addition, since the liquid ejecting head is configured to be rotatable with respect to the carriage, maintenance can be performed with the liquid ejecting head raised from the carriage. Therefore, there is no need to perform maintenance after the liquid ejecting head is once moved out of the recording area, and maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
  • a liquid jet recording apparatus includes any of the carriage units described above, a carriage moving unit that moves the carriage unit, and a recording medium conveyance unit that conveys the recording medium. It is characterized by.
  • the carriage unit in which the liquid ejecting head is accurately positioned with respect to the carriage is provided, the liquid is ejected from the ejection hole of the liquid ejecting head to the recording surface of the recording medium with high accuracy. Is possible. Therefore, it is possible to provide a liquid jet recording apparatus with excellent recording accuracy.
  • the fixing method of the liquid jet head according to the present invention includes a liquid jet head in which a plurality of jet holes for jetting liquid is arranged on a recording surface of a recording medium, and the recording surface in a state where the liquid jet head is fixed.
  • a head support member having a guide groove formed in a direction to be moved, and a pin movable along the guide groove, and a slider movable along the longitudinal direction. And moving the slide member along the longitudinal direction in a state where the liquid ejecting head is supported by the head support member, thereby moving the liquid ejecting head relative to the carriage.
  • the liquid ejecting head is moved in all directions of the longitudinal direction, the lateral direction, and the height direction of the carriage only by moving the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Positioning is done. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
  • a rotation shaft is provided along the short direction of the slide member, a gear portion is formed at least at a part, and the rotation shaft is formed at the rotation center of the gear portion.
  • a rotating member having a long hole in which the rotation shaft is movable in the longitudinal direction is connected to the head support member, and a gear portion meshing with the gear portion is connected to the carriage.
  • a step of rotating the liquid ejecting head with respect to the carriage about the rotation axis, and the carriage and the rotating member abut on each other, and the liquid ejecting head The rotation of the rotary shaft provided on the slide member is moved in the elongated hole by further moving the slide member along the longitudinal direction.
  • the said longitudinal direction fixing process, the said transversal direction fixing process, and the said height direction fixing process are completed because the said slide member moves along the said longitudinal direction.
  • the rotation member that rotates the liquid ejecting head with respect to the carriage is disposed, and the liquid ejecting head can be rotated with respect to the carriage only by moving the slide member along the longitudinal direction. Since it comprised, the liquid ejecting head can be rotated with a simple mechanism. In addition, since the liquid ejecting head is configured to be rotatable with respect to the carriage, maintenance can be performed with the liquid ejecting head raised from the carriage. Therefore, after the maintenance of the liquid ejecting head, the liquid ejecting head is rotated with respect to the carriage simply by moving the slide member along the longitudinal direction, and the slide member is further moved along the longitudinal direction after the rotation is completed.
  • the liquid ejecting head can be fixed at a desired position on the carriage. That is, the liquid ejecting head can be rotated and fixed with a simple structure.
  • the liquid ejecting head can be rotated, it is not necessary to perform maintenance after the liquid ejecting head is once moved out of the recording area, and the maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
  • the liquid ejecting head is moved in the longitudinal direction, the lateral direction, and the height direction in the carriage by a simple mechanism that moves the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Positioning in all directions is performed. Further, by pressing the liquid ejecting head with the first urging member and the second urging member, the liquid ejecting head can be surely guided in the direction of the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
  • FIG. 1 is a perspective view showing a liquid jet recording apparatus in an embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating a liquid ejecting head according to an embodiment of the invention.
  • FIG. 3 is a perspective view illustrating a liquid jet head according to an embodiment of the present invention, and is a perspective view seen from the opposite side of FIG. 2. It is a perspective view of a head chip in an embodiment of the present invention. It is a perspective view which shows the principal part of the carriage unit in embodiment of this invention. It is a perspective view of the rotation fixing mechanism in the embodiment of the present invention. It is a perspective view of the slide arm which is one member of the rotation fixing mechanism in the embodiment of the present invention.
  • FIG. 1 is a perspective view showing a liquid jet recording apparatus.
  • the liquid jet recording apparatus 1 includes a pair of transport units 2 and 3 that transport a recording medium S such as paper, a liquid jet head 4 that ejects ink onto the recording medium S, and supplies ink to the liquid jet head 4.
  • Ink supply means 5 and scanning means 6 for causing the liquid ejecting head 4 to scan in a direction (sub-scanning direction) substantially orthogonal to the conveyance direction (main scanning direction) of the recording medium S are provided.
  • the pair of conveying means 2 and 3 includes grid rollers 20 and 30 extending in the sub-scanning direction, pinch rollers 21 and 31 extending in parallel to the grid rollers 20 and 30, and grid rollers 20 and 30, respectively. And a drive mechanism (not shown) such as a motor for rotating the shaft.
  • the ink supply means 5 includes an ink tank 50 that contains ink, and an ink supply pipe 51 that connects the ink tank 50 and the liquid ejecting head 4.
  • a plurality of ink tanks 50 are provided. Specifically, ink tanks 50Y, 50M, 50C, and 50B of four types of inks of yellow, magenta, cyan, and black are provided side by side.
  • the ink supply pipe 51 is configured by a flexible hose having flexibility that can correspond to the operation of the liquid ejecting head 4 (carriage unit 62).
  • the carriage unit 62 refers to a state where the liquid ejecting head 4 is attached to the carriage 68.
  • the scanning unit 6 includes a pair of guide rails 60 and 61 extending in the sub-scanning direction, a carriage unit 62 slidable along the pair of guide rails 60 and 61, and moving the carriage unit 62 in the sub-scanning direction. And a drive mechanism 63.
  • the drive mechanism 63 rotates a pair of pulleys 64 and 65 disposed between the pair of guide rails 60 and 61, an endless belt 66 wound between the pair of pulleys 64 and 65, and one pulley 64.
  • a drive motor 67 to be driven.
  • the pair of pulleys 64 and 65 are disposed between both end portions of the pair of guide rails 60 and 61, respectively, and are disposed at an interval in the sub-scanning direction.
  • the endless belt 66 is disposed between a pair of guide rails 60 and 61, and a carriage unit 62 is connected to the endless belt.
  • a plurality of liquid ejecting heads 4 are mounted on the carriage unit 62. Specifically, liquid ejecting heads 4Y, 4M, 4C, and 4B of four types of inks of yellow, magenta, cyan, and black are arranged in the sub-scanning direction. It is mounted side by side.
  • the liquid ejecting head 4 is a liquid ejecting head chip (hereinafter simply referred to as “head chip”) that includes a mounting substrate 40 that is a connecting member to the carriage 68 and a nozzle hole 13 that ejects ink toward the recording medium S. ) 41, a flow path substrate 42 that circulates ink to the head chip 41, a base plate 44 that serves as a support portion of each member, and a wiring substrate 45 that controls ink ejection timing and the like. Note that the mounting substrate 40 and the base plate 44 may be separate or integrally formed. A suction tube 39 for sucking ink leaking from the head chip 41 is attached to the mounting substrate 40.
  • head chip liquid ejecting head chip
  • the mounting substrate 40 is formed in a substantially rectangular shape when viewed from the Z direction.
  • a notch is provided in the mounting substrate 40 from the center of the long side to the surface of the base plate 44.
  • a head chip 41 is attached to the inner surface of the notch.
  • the flow path substrate 42 is attached to one surface side of the head chip 41.
  • a flow passage (not shown) for circulating ink is formed inside the flow path substrate 42, and an inflow port 42 a communicating with the flow path is formed on the upper surface of the flow path substrate 42.
  • a pressure adjusting unit 49 that absorbs ink pressure fluctuation is connected to the inflow port 42a.
  • the base plate 44 is erected substantially vertically on the upper surface of the mounting substrate 40, and a wiring substrate 45 is mounted on the surface thereof.
  • a control circuit 45 a that controls the operation of the head chip 41 is formed on the wiring board 45.
  • the wiring substrate 45 and the head chip 41 are electrically connected by a flexible substrate 46.
  • FIG. 4 is a perspective view of the head chip.
  • the head chip 41 includes an ink chamber 10 in which ink is stored, a plurality of channels 17 arranged in parallel by being divided by piezoelectric elements that can be deformed by applying a voltage, and ink droplets toward the recording medium S. And a nozzle hole 13 for discharging water.
  • the head chip 41 is a so-called independent channel type head chip, which comprises a groove where ink is supplied and a groove where ink is not supplied by the slit forming wall 9, and even if conductive ink is used, a short circuit accident occurs. Droplets can be ejected without occurring.
  • the actuator plate 15 is provided with electrodes 15c connected to the flexible substrate 46 along the respective side walls of the grooves 15b.
  • the configuration of the head chip 41 is not limited to this embodiment.
  • the slit forming wall 9 may not be provided, and ink may be supplied to all the grooves formed in the actuator plate.
  • the head chip 41 is a so-called independent channel type head chip, and a nozzle plate 14 in which the nozzle holes 13 are formed and a plurality of piezoelectric elements are arranged in parallel with a plurality of gaps therebetween.
  • the actuator plate 15 in which the channel 17 is formed, the ink chamber plate 16 in which the ink chamber 10 is formed, and the nozzle cap 8 for supporting the nozzle plate 14 are provided.
  • the actuator plate 15 is a rectangular plate made of a piezoelectric material such as lead zirconate titanate (PZT).
  • the head chip 41 is directed downward so that the recording surface of the recording medium S and the nozzle plate 14 of the head chip 41 are arranged in parallel. Is attached.
  • the arrangement direction of the nozzle holes 13 of the head chip 41 is the longitudinal direction, and the direction orthogonal to the longitudinal direction is the short direction. That is, the liquid jet head 4 is formed in a substantially rectangular shape when viewed from the normal direction of the recording surface of the recording medium S.
  • the longitudinal direction of the liquid jet head 4 is referred to as a Y direction
  • the short direction is referred to as an X direction
  • the normal direction (height direction) of the recording surface of the recording medium S is referred to as a Z direction.
  • the liquid jet head 4 matches the longitudinal direction (Y direction) to the main scanning direction and the short side direction (X direction) to the sub scanning direction. It is installed.
  • a plurality of liquid ejecting heads 4 are mounted on the carriage unit 62 at substantially equal intervals in the X direction. Then, the recording medium S is transported in the Y direction, and ink droplets are ejected from the liquid ejecting head 4 while moving the carriage unit 62 in the X direction, thereby recording on the recording medium S. .
  • FIG. 5 is a perspective view of the carriage unit 62 and is a perspective view of the state in which the liquid ejecting head 4 is attached to the base portion 68 a of the carriage 68.
  • the base portion 68a of the carriage 68 is a portion on which the liquid ejecting head 4 is mounted, and is disposed horizontally with the recording surface of the recording medium S. In FIG. 5, only the base portion 68a of the carriage 68 is shown, and the other portions are not shown.
  • the carriage 68 is formed of a metal material such as aluminum alloy or stainless steel.
  • a groove portion 70 is formed in the base portion 68 a of the carriage 68 as a housing portion that can accommodate the mounting substrate 40 of the liquid jet head 4.
  • the groove portion 70 is formed in a substantially rectangular shape that is slightly larger than the liquid jet head 4 when viewed from the Z direction.
  • an opening through which the ink droplet ejected from the liquid ejecting head 4 passes is formed in the approximate center in the plan view of the groove portion 70, and the nozzle plate 14 of the liquid ejecting head 4 is formed at the end portion in the + Y direction of the groove portion 70.
  • a restricting portion 55 (see FIG. 14) is formed.
  • first protrusions 47 protruding in the + Y direction are formed on the side surface in the + Y direction of the mounting substrate 40 of the liquid jet head 4.
  • the first protrusion 47 is in contact with the side surface in the + Y direction of the groove portion 70 so that the liquid ejecting head 4 is positioned in the Y direction with respect to the carriage 68.
  • a pair of second protrusions 48 a and 48 b projecting in the + X direction are formed on the side surface in the + X direction of the mounting substrate 40 of the liquid jet head 4.
  • one second protrusion 48 a is formed at a position near the ⁇ Y direction side of the mounting substrate 40
  • the other second protrusion 48 b is formed at a position near the + Y direction side of the mounting substrate 40.
  • the pair of second protrusions 48 a and 48 b abut on the side surface in the + X direction of the groove 70, so that the liquid ejecting head 4 is positioned in the X direction with respect to the carriage 68.
  • a recess 69 is formed on the upper surface of the base portion 68 a of the carriage 68, and a rotation fixing mechanism 80 is provided in the recess 69.
  • the rotation fixing mechanism 80 is movable in the X direction and the Y direction along with the slide arm 71 movable in the Y direction, the slide plate 81 movable in the Y direction together with the slide arm 71, and the movement of the slide plate 81.
  • the concave portion 69 is formed to have a size connecting to the groove portion 70 from the end portion on the ⁇ Y direction side of the base portion 68a.
  • a pair of racks 72 and 73 are provided on the upper surface 69a of the recess 69 along the Y direction.
  • the pair of racks 72 and 73 is formed with a rack gear 74 that meshes with a gear unit 100 described later. Further, the pair of racks 72 and 73 are arranged in parallel with an interval of approximately the same size as the width of the slide arm 71.
  • a screw hole (not shown) is formed at a substantially intermediate position between the pair of racks 72 and 73 in the X direction and the Y direction, and by screwing the holding screw 75 in a state where the slide arm 71 is arranged, The slide arm 71 can be supported so as to be movable in the Y direction.
  • the slide arm 71 is erected at both ends in the X direction at the flat plate portion 76 that is in contact with the upper surface 69 a of the concave portion 69 and the + Y direction end portion of the flat plate portion 76, and the rotation shaft 84 is provided.
  • Rotating shaft support portions 78 and 78 each having a through-hole 77 to be inserted are provided.
  • the flat plate portion 76 is formed with a long hole 79 opened along the Y direction.
  • the slide arm 71 can be supported so as to be movable in the Y direction by inserting a press screw 75 into the long hole 79 and screwing the press screw 75 into the screw hole of the carriage 68.
  • the slide plate 81 is erected at both ends in the X direction at the flat plate portion 85 that comes into contact with the flat plate portion 101 of the rotating arm 83 described later, and the ⁇ Y direction end portion of the flat plate portion 85.
  • Rotation shaft support portions 87, 87 each having a through hole 86 through which the rotation shaft 84 is inserted.
  • the flat plate portion 85 is formed with a screw hole (not shown) into which two holding screws 88 and 89 can be screwed at positions spaced apart from each other in the X direction and the Y direction in plan view. That is, the straight line connecting the two holding screws 88 and 89 is configured to intersect the X direction and the Y direction.
  • a plate-like restricting portion 90 projecting in the + X direction is formed on the side surface of the flat plate portion 85 on the + X side
  • a plate-like restricting portion 91 projecting in the ⁇ X direction is formed on the side surface on the ⁇ X side.
  • the restricting portions 90 and 91 are pressed from the ⁇ Z direction to the + Z direction by being fitted to the leaf spring members 92 and 92 provided in the recess 69, thereby positioning the liquid ejecting head 4 in the Z direction.
  • the restricting portions 90 and 91 and the leaf spring members 92 and 92 are each formed with a tapered portion to facilitate fitting.
  • the head fixing plate 82 includes a flat plate portion 93 that is slidably contacted with the flat plate portion 85 of the slide plate 81, a flat plate portion 94 that is disposed in the + Y direction of the flat plate portion 93, and And a connecting portion 97 that connects the flat plate portion 93 and the flat plate portion 94.
  • the flat plate portion 93 has a long hole 95 in which the holding screws 88 and 89 can slide.
  • the long hole 95 has an opening extending in the same direction as a straight line connecting the two holding screws 88 and 89. That is, when the slide plate 81 is moved in the Y direction, the head fixing plate 82 is movable in the X direction and the Y direction (described in detail later).
  • the flat plate portion 94 is formed with a pair of screw holes 96 extending in the Z direction.
  • the screw holes 96, 96 are formed at positions corresponding to the screw insertion holes 43, 43 (see FIG. 2) of the mounting substrate 40 of the liquid jet head 4, and the screws 38, 38 (see FIG. 5) are connected to the screw insertion holes 43, 43.
  • the liquid ejecting head 4 and the head fixing plate 82 can be connected by being threaded through the screw holes 96 and 96.
  • the pivot arm 83 is provided upright at both ends in the X direction at the ⁇ Y direction end of the flat plate portion 101 and the flat plate portion 101 configured to be able to come into contact with and separate from the recess 69.
  • And rotation shaft guide portions 99, 99 each having a long hole 98, 98 through which the rotation shaft 84 is inserted.
  • the long hole 98 is opened along the Y direction in a state where the flat plate portion 101 is in contact with the recess 69. That is, the rotation shaft 84 inserted through the long hole 98 can move along the Y direction.
  • the rotation shaft 84 is configured to be the rotation center of the rotation arm 83 when the rotation shaft 84 is positioned at the end of the elongated hole 98 in the ⁇ Y direction.
  • a gear portion 100 that meshes with a rack gear 74 formed on the racks 72 and 73 is formed on a part of the outer periphery of the rotation shaft guide portion 99.
  • the rotation shaft 84 has the through-holes 86, 86 of the rotation shaft support portions 87, 87 of the slide plate 81 arranged on the inside and It is inserted into the through-holes 77, 77 of the rotation shaft support portions 78, 78 of the slide arm 71 arranged on the outer side in the X direction of the dynamic shaft support portions 87, 87, and further outside of the rotation shaft support portions 78, 78 in the X direction. It is arranged in a state where it is inserted through the long holes 98, 98 of the rotation shaft guide portions 99, 99 of the rotation arm 83 disposed in the.
  • the nozzle plate 14 of the liquid ejecting head 4 is oriented in the horizontal direction by holding the flat plate portion 101 of the rotating arm 83 approximately 90 ° with respect to the base portion 68a. .
  • maintenance of the liquid jet head 4 is performed using a maintenance device (not shown).
  • the slide arm 71 is pressed in the + Y direction (arrow direction) to start the movement in order to fix the liquid ejecting head 4 to the base portion 68a.
  • a driving device such as a motor (not shown) is used.
  • the gear unit 100 of the rotating arm 83 and the rack gear 74 provided on the base unit 68a mesh with each other, and the gear unit 100 rotates.
  • the gear unit 100 rotates, the slide plate 81 supported by the rotating arm 83, the head fixing plate 82, and the liquid ejecting head 4 connected to the head fixing plate 82 also rotate simultaneously.
  • the gear unit 100 rotates, the rotating arm 83 moves on the rack gear 74 in the + Y direction.
  • the rotation of the rotation arm 83 is completed when the flat plate portion 101 of the rotation arm 83 comes into contact with the upper surface 69a of the recess 69 of the base portion 68a. At this time, the nozzle plate 14 of the liquid jet head 4 is held at a position substantially parallel to the recording surface of the recording medium S.
  • FIG. 14 is a perspective view of the state of FIG. 13 viewed from another viewpoint.
  • the liquid ejecting head 4 is not yet fixed to the base portion 68a. Therefore, in order to fix the liquid ejecting head 4 to the base portion 68a, the slide arm 71 is further moved in the + Y direction.
  • the head fixing plate 82 is movable in the X direction and the Y direction. Specifically, since the direction of the long axis of the long hole 95 is formed in a direction inclined from the + Y direction to the predetermined angle ⁇ X direction side, the head fixing plate 82 is moved when the press screws 88 and 89 are moved in the + Y direction. Can move in the + X direction and the + Y direction.
  • the liquid ejecting head 4 is first moved in the + Y direction. Then, the ⁇ X side end 40a at the + Y side tip of the mounting substrate 40 of the liquid ejecting head 4 comes into contact with the leaf spring member 102 provided on the base portion 68a. The leaf spring member 102 urges the mounting substrate 40 of the liquid ejecting head 4 in the + X direction.
  • the slide arm 71 when the slide arm 71 is moved in the + Y direction, the contact portion between the mounting substrate 40 and the leaf spring member 102 becomes a fulcrum, and when the slide plate 81 is moved in the + Y direction, the holding screws 88 and 89 are placed in the long holes 95. Slide. Then, the head fixing plate 82 moves in the + X direction and the + Y direction, and the liquid ejecting head 4 also moves in the + X direction and the + Y direction accordingly.
  • the plate spring member 103 biases the liquid ejecting head 4 in the + Z direction on the tip side that is the end in the + Y direction of the liquid ejecting head 4.
  • the restricting portions 90 and 91 of the slide plate 81 are fitted into the leaf spring members 92 and 92 provided on the base portion 68a.
  • the plate spring member 92 urges the liquid ejecting head 4 in the + Z direction by urging the slide plate 81 in the + Z direction on the base side that is the end portion in the ⁇ Y direction of the liquid ejecting head 4.
  • the slide arm 71 is further moved in the + Y direction. Then, the end portion 40a of the mounting substrate 40 of the liquid ejecting head 4 is guided and pressed by the leaf spring member 102 to further move the liquid ejecting head 4 in the + X direction.
  • the liquid ejecting head 4 moves in the + X direction until the pair of second protrusions 48 a and 48 b (see FIG. 3) formed on the mounting substrate 40 of the liquid ejecting head 4 abuts on the side surface of the groove portion 70.
  • the second protrusion 48 a comes into contact with the side surface of the groove portion 70 after the second protrusion 48 b comes into contact with the side surface of the groove portion 70. Thereby, the positioning of the liquid ejecting head 4 in the X direction is completed.
  • the first protrusion 47 formed on the mounting substrate 40 of the liquid jet head 4 contacts the side surface of the groove portion 70. Thereby, the positioning of the liquid ejecting head 4 in the Y direction is completed.
  • the upper surface 40 b of the mounting substrate 40 of the liquid ejecting head 4 is pressed in the + Z direction by the leaf spring member 103, and the restricting portion 55 ( 15), the positioning in the Z direction on the tip side of the liquid jet head 4 is completed.
  • the leaf spring members 92 and 92 urge the restricting portions 90 and 91 of the slide plate 81, whereby the positioning of the liquid ejecting head 4 in the Z direction is completed. Thereby, the positioning of the liquid ejecting head 4 in the Z direction is completed.
  • the liquid ejecting head 4 When the positioning of the liquid ejecting head 4 in the XYZ directions is completed, the liquid ejecting head 4 is fixed to the base portion 68 a of the carriage 68. In the state where the liquid jet head 4 is fixed to the base portion 68a, the nozzle plate 14 of the liquid jet head 4 and the recording surface of the recording medium S supplied to the liquid jet recording apparatus 1 are parallel to each other. .
  • a driving device (not shown) for moving the slide arm 71 in the Y direction is provided with a torque limiter, and the liquid ejecting head 4 is held in a fixed position at a desired position of the carriage 68.
  • the Rukoto The Rukoto.
  • the liquid ejecting head 4 moves in all directions in the XYZ directions of the carriage 68 with a simple mechanism that moves the slide arm 71 that moves the liquid ejecting head 4 with respect to the carriage 68 along the Y direction. Positioning is done. Further, by pressing the liquid ejecting head 4 with the leaf spring members 92, 102, and 103, the liquid ejecting head 4 can be reliably guided in the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid jet head 4 with respect to the carriage 68 can be improved. In addition, after the liquid ejecting head 4 is attached to the carriage 68, it is not necessary to perform further positioning adjustment work, so that the production efficiency can be improved. In addition, since the position reproducibility when attaching / detaching the liquid jet head 4 is excellent, the recording accuracy on the recording medium S can be improved.
  • leaf spring members 92 and 103 are disposed at positions corresponding to both sides of the liquid ejecting head 4 in the Y direction, they can be pressed with a substantially equal force in the + Z direction on both sides of the liquid ejecting head 4 in the Y direction. The positioning accuracy can be further improved.
  • first protrusion 47 and the second protrusions 48a and 48b are formed on the side surface of the mounting substrate 40 of the liquid ejecting head 4, the first protrusion 47 and the second protrusions 48a and 48b come into contact with the side surface of the groove portion 70 to form liquid. Since the ejection head 4 is positioned, the liquid ejection head 4 can be accurately positioned.
  • the restricting portion 55 with which the mounting substrate 40 of the liquid ejecting head 4 is brought into contact is formed at the + Y direction end portion of the groove portion 70, the liquid ejecting head 4 can be accurately positioned in the Z direction.
  • the liquid ejecting head 4 can be rotated with respect to the carriage 68 simply by arranging the rotating arm 83 for rotating the liquid ejecting head 4 with respect to the carriage 68 and moving the slide arm 71 along the Y direction. Since it comprised in this way, the liquid jet head 4 can be rotated with a simple mechanism. Further, by configuring the liquid ejecting head 4 to be rotatable with respect to the carriage 68, maintenance can be performed in a state where the liquid ejecting head 4 is raised from the carriage 68. Therefore, it is not necessary to perform maintenance after the liquid ejecting head 4 is once moved out of the recording area, and the maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
  • the liquid jet recording apparatus 1 includes the carriage unit 62 described above, the scanning unit 6 that moves the carriage unit 62, and the pair of transport units 2 and 3 that transport the recording medium S.
  • the liquid ejecting head 4 is positioned with respect to 68 with high accuracy, and ink can be ejected from the nozzle holes 13 of the liquid ejecting head 4 onto the recording surface of the recording medium S with high accuracy. Therefore, it is possible to provide the liquid jet recording apparatus 1 with excellent recording accuracy.
  • the present invention is not limited to the above-described embodiments, and includes various modifications made to the above-described embodiments without departing from the spirit of the present invention.
  • the specific materials and layer configurations described in the embodiments are merely examples, and can be changed as appropriate.
  • four liquid ejecting heads 4 are mounted on one carriage 68, but the number of liquid ejecting heads 4 mounted on one carriage 68 may be three or less or five or more.
  • the plurality of liquid jet heads 4 are arranged in a straight line, but may be arranged in a staggered manner.
  • the liquid ejecting head 4 is arranged so that the longitudinal direction of the liquid ejecting head 4 (arrangement direction of the nozzle holes 13) is orthogonal to the sub-scanning direction of the carriage 68.
  • the longitudinal direction of the liquid ejecting head 4 is The liquid ejecting head 4 may be disposed so as to intersect with the sub-scanning direction of the carriage 68 at an angle other than a right angle. As a result, the liquid ejection pitch in the main scanning direction is reduced, so that high-definition recording can be performed.
  • the first protrusion 47 and the second protrusions 48 a and 48 b are formed on the side surface of the liquid ejecting head 4, but may be formed on the side surface of the groove portion 70 in the carriage 68.
  • the liquid ejecting head 4 is pressed in a desired direction by the plate spring members 92, 102, and 103 provided on the carriage 68, but an urging member such as a plate spring member is applied to the liquid ejecting head 4. May be provided.

Landscapes

  • Ink Jet (AREA)

Abstract

La présente invention se rapporte à une unité de chariot conçue d'une manière telle qu'une tête d'éjection de liquide peut être positionnée par rapport à un chariot avec une meilleure précision, à un dispositif d'enregistrement à éjection de liquide, et à un procédé de fixation d'une tête d'éjection de liquide. Une unité de chariot (62) est pourvue d'une tête d'éjection de liquide (4) et d'un chariot (68) qui se déplace par rapport et parallèlement à la surface d'enregistrement d'un support sur lequel doit être effectué l'enregistrement. Le chariot est pourvu d'un élément de support de tête (82) dans lequel est formée une rainure de guidage (95), et également d'un élément coulissant (81) sur lequel sont formées des chevilles (88, 89) qui peuvent se déplacer le long de la rainure de guidage. Lorsque l'élément coulissant est déplacé dans la direction longitudinale, la tête d'éjection de liquide est positionnée par rapport au chariot dans la direction longitudinale. De plus, lorsque les chevilles sont déplacées le long de la rainure de guidage, un premier élément de pression (102) est amené à appuyer sur la tête d'éjection de liquide pour ainsi positionner la tête d'éjection de liquide par rapport à la direction latérale, et des seconds éléments de pression (92, 103) sont également amenés à appuyer sur la tête d'éjection de liquide pour ainsi positionner la tête d'éjection de liquide par rapport à la hauteur. Ainsi, la tête d'éjection de liquide est fixée par rapport au chariot.
PCT/JP2010/052561 2009-03-04 2010-02-19 Unité de chariot, dispositif d'enregistrement à éjection de liquide, et procédé de fixation de tête d'éjection de liquide Ceased WO2010101034A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-051238 2009-03-04
JP2009051238A JP2010201828A (ja) 2009-03-04 2009-03-04 キャリッジユニット、液体噴射記録装置および液体噴射ヘッドの固定方法

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WO2010101034A1 true WO2010101034A1 (fr) 2010-09-10

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WO2014177439A1 (fr) * 2013-05-03 2014-11-06 Oce-Technologies B.V. Ensemble de montage de tête d'impression
EP3093150A1 (fr) * 2015-05-15 2016-11-16 Mimaki Engineering Co., Ltd. Mécanisme et procédé de réglage
EP3156235A1 (fr) * 2015-10-16 2017-04-19 OCE-Technologies B.V. Structure de support d'un chariot d'imprimante

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JP6581489B2 (ja) 2015-12-11 2019-09-25 エスアイアイ・プリンテック株式会社 キャリッジおよび液体噴射記録装置
JP6639318B2 (ja) * 2016-04-21 2020-02-05 エスアイアイ・プリンテック株式会社 キャリッジおよび液体噴射記録装置

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JP2001063020A (ja) * 1999-08-26 2001-03-13 Ricoh Co Ltd インクジェット記録装置
JP2004216816A (ja) * 2003-01-17 2004-08-05 Ricoh Co Ltd 液体吐出記録キャレッジおよび液体吐出記録装置
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JPH1034980A (ja) * 1996-07-22 1998-02-10 Minolta Co Ltd インクジェット記録装置
JP2001063020A (ja) * 1999-08-26 2001-03-13 Ricoh Co Ltd インクジェット記録装置
JP2004216816A (ja) * 2003-01-17 2004-08-05 Ricoh Co Ltd 液体吐出記録キャレッジおよび液体吐出記録装置
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WO2014177439A1 (fr) * 2013-05-03 2014-11-06 Oce-Technologies B.V. Ensemble de montage de tête d'impression
US9527300B2 (en) 2013-05-03 2016-12-27 Oce-Technologies B.V. Print head mounting assembly
EP3093150A1 (fr) * 2015-05-15 2016-11-16 Mimaki Engineering Co., Ltd. Mécanisme et procédé de réglage
US9802409B2 (en) 2015-05-15 2017-10-31 Mimaki Engineering Co., Ltd. Adjustment mechanism and adjustment method
EP3156235A1 (fr) * 2015-10-16 2017-04-19 OCE-Technologies B.V. Structure de support d'un chariot d'imprimante
US9718291B2 (en) 2015-10-16 2017-08-01 Oce-Technologies B.V. Printer carriage support structure

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