JP2009073614A - Liquid injection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid injection device capable of correcting the conveyance direction of a long shape target more smoothly. <P>SOLUTION: In a printer for injecting ink on long-shape continuous form paper conveyed from an upstream side, a guide device 26 in which a guide 24 and a guide block 25 are arranged as a pair in paralled with each other along the conveyance direction of the continuous form paper is provided for a conveyance path of the continuous form paper, and a guide roller 83a for rotating in conjunction with the conveyed continuous form paper is provided at a position used as an entry port of the continuous form paper in at least one of the guide 24 and the guide block 25 in the guide device 26. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a liquid ejecting apparatus such as an ink jet printer.

  In general, an ink jet printer (hereinafter referred to as “printer”) is widely known as a liquid ejecting apparatus that ejects liquid onto a target (for example, Patent Document 1). The printer of this patent document 1 is to continuously print a large number of unit images that are cut out later and used as labels on a printing tape (target), which is continuous paper. For example, the printer is stuck on a wrap film of fresh food. Label can be printed in small lots.

In such a printer, there is a possibility that a printing defect such as a disordered printed image may occur due to the meandering of the transported printing tape. Therefore, a printer is usually provided with a guide device made up of a flat guide plate or the like that regulates the width of the conveyance path so that the width of the conveyance path can be changed, as shown in Patent Document 1, for example. Functions as a width guide.
JP 2003-118136 A

  By the way, in the guide device in the conventional printer shown in Patent Document 1, the conveyance direction of the printing tape is corrected by bringing the printing tape and the guide plate into contact with each other, particularly at the position where the printing tape is carried. Therefore, there has been a problem in that stress that causes bending or wear is applied to both side edges of the printing tape during correction.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a liquid ejecting apparatus that can more smoothly correct the conveying direction of a long target.

  In order to achieve the above object, the liquid ejecting apparatus of the present invention is a liquid ejecting apparatus that ejects liquid onto a long target that is transported from the upstream side. The target transport path includes a transport direction of the target. And a pair of guide means arranged in parallel along the at least one of the pair of guide means, at least at a position serving as a carry-in port for the target. With body.

  According to this configuration, when the rotating body rotates in conjunction with the target, it is possible to suppress bending or stress that causes wear on the target, and the transport direction of the long target is smoother. Can be corrected.

  In the liquid ejecting apparatus according to the aspect of the invention, the target in the pair of guide units may be located at a position serving as the target carry-in port in the pair of guide units toward the downstream side in the transport direction of the target. A tapered surface is formed in which the width in the horizontal direction perpendicular to the conveying direction is gradually reduced.

  According to this configuration, for example, even when the target is loaded in a state in which the target is shifted in the width direction orthogonal to the transport direction, the target is slid along the taper surface from the upstream side to the downstream side. It is possible to smoothly correct the transport direction.

The liquid ejecting apparatus according to the aspect of the invention further includes guide width changing means for changing a width in the horizontal direction orthogonal to the transport direction of the target in the pair of guide means.
According to this configuration, by changing the guide width of the pair of guide means in accordance with the width of the target, it is possible to accurately guide targets having different widths.

  In the liquid ejecting apparatus according to the aspect of the invention, the pair of guide units may be formed with guide grooves that gradually become narrower toward a bottom portion at portions facing the target from both sides.

  According to this configuration, the pair of guide means can suppress the movement of the target during the conveyance by restricting the movement in the direction perpendicular to the conveyance direction and the horizontal direction of the target by the guide groove.

In the liquid ejecting apparatus according to the aspect of the invention, the rotating member may be further provided on the guide unit so as to be along the transport path on the downstream side of the target inlet.
According to this configuration, it is possible to more smoothly correct the target transport direction by providing a plurality of rotating bodies that rotate in conjunction with the target in the target transport path.

  Hereinafter, an embodiment in which a liquid ejecting apparatus of the invention is embodied in an ink jet printer will be described with reference to the drawings. In the following description, when referring to “front-rear direction”, “left-right direction”, and “up-down direction”, the directions indicated by arrows in FIGS. 1 and 2 are used as a reference.

  As shown in FIG. 1, an ink jet printer 11 as a liquid ejecting apparatus sequentially prints on a feeding unit 13 that feeds a continuous paper 12 as a long target, and a continuous paper 12 fed from the feeding unit 13. A main body 14 that is performed and dried, and a winding unit 15 that winds the continuous paper 12 that has been printed and dried by the main body 14 are provided. That is, the main body portion 14 includes a rectangular parallelepiped main body case 16, and the feeding portion 13 is disposed on the left side of the main body case 16 on the upstream side in the conveying direction of the continuous paper 12 and the main body case 16 on the downstream side. The winding part 15 is arrange | positioned on the right side.

  The feeding portion 13 includes a support plate 17 extending leftward from the lower left end portion of the main body case 16, and the front surface of the support plate 17 is a vertical surface. A winding shaft 18 extending toward the front (front side in the direction orthogonal to the paper surface in FIG. 1) is rotatably supported with respect to the support plate 17 at the front end portion of the front surface of the support plate 17. A disc-shaped rotating plate 19 is provided at the proximal end of the winding shaft 18 so as to rotate integrally with the winding shaft 18.

  A continuous paper 12 previously wound in a roll shape is supported on the winding shaft 18 so as to be integrally rotatable with the winding shaft 18, and a rotating plate 19 is formed on both side edges of the continuous paper 12 wound in a roll shape. The side edge of the side is in contact with the front surface of the rotating plate 19. That is, when the continuous paper 12 previously wound in a roll shape is supported on the winding shaft 18, one side edge of the continuous paper 12 wound in the roll shape comes into contact with the front surface of the rotating plate 19. Thus, positioning in the front-rear direction perpendicular to the conveyance direction of the continuous paper 12 is performed. Note that glossy paper is used as the continuous paper 12 of the present embodiment.

  As shown in FIGS. 1 and 2, the feeding portion 13 includes a plate-like feeding stand 20 that extends horizontally from the central portion of the left surface of the main body case 16 toward the left. A relay roller 21 is rotatably provided for winding the continuous paper 12 fed from the winding shaft 18 and guiding it to the upper surface of the feeding table 20.

  As shown in FIG. 2, a guide portion 24 as an elongated block-shaped guide means extending along the left-right direction is provided on almost the entire rear end edge on the rear end edge on the upper surface of the feeding table 20. . Furthermore, a guide block 25 is provided on the upper surface of the feeding table 20 as guide means disposed so as to face the left end portion of the guide portion 24. An area between the guide portion 24 and the guide block 25 on the upper surface of the feeding table 20 is a part of the transport path of the continuous paper 12, and the guide portion 24 and the guide block 25 are widths in the front-rear direction of the continuous paper 12. Are separated by the same distance.

  When the continuous paper 12 is conveyed toward the right side (the main body 14 side) along the upper surface of the feeding table 20, the front and rear side edges of the continuous paper 12 are in relation to the guide portion 24 and the guide block 25. By sliding, the continuous paper 12 is guided along the transport direction (here, the right direction). Note that the guide block 25 is movable in the front-rear direction on the upper surface of the feeding table 20, and when the width of the continuous paper 12 in the front-rear direction is changed, the guide block 24 is moved to move the guide unit 24. The distance between the guide block 25 and the guide block 25 is changed according to the width of the continuous paper 12 in the front-rear direction.

  As shown in FIG. 1, a plate-like base 30 that divides the inside of the main body case 16 vertically is provided at a position slightly above the central portion in the vertical direction in the main body case 16 of the main body portion 14. The area above the base 30 in the main body case 16 is a printing chamber 31 for printing on the continuous paper 12. On the other hand, in the area below the base 30 in the main body case 16, three compartments 33, 34, and 35 that are partitioned in the left-right direction are formed. These three compartments are, in order from the left, a first compartment 33, a second compartment 34, and a third compartment 35.

  The left wall of the main body case 16 is provided with a carry-in port (not shown) for carrying the continuous paper 12 into the first compartment 33 from the upper surface of the feeding table 20. A pull-in driving roller 36 is rotatably provided so as to face each other at a close position. That is, the pull-in driving roller 36 is disposed at the left end portion of the first compartment 33.

  A relay roller 40 is rotatably provided on the right side of the pull-in driving roller 36 in the first compartment 33. Then, the continuous paper 12 drawn into the first compartment 33 by driving the drawing drive roller 36 is wound around the relay roller 40 so as to go to a position near the left end of the printing chamber 31.

  An elevating roller 42 that moves up and down based on driving of an elevating mechanism (not shown) is provided between the drawing drive roller 36 and the relay roller 40 in the first compartment 33. The continuous paper 12 is wound around the elevating roller 42 from below.

  Here, the length of the continuous paper 12 positioned between the pull-in driving roller 36 and the relay roller 40 becomes longer as the elevating roller 42 is lowered and shorter as the elevating roller 42 is raised. . That is, the transport distance of the continuous paper 12 between the pull-in drive roller 36 and the relay roller 40 becomes longer as the lift roller 42 is positioned on the lower side, and the pull-up drive roller 36 and the relay are relayed as the lift roller 42 is positioned on the upper side. The conveyance distance of the continuous paper 12 between the rollers 40 is shortened.

  As shown in FIG. 1, the continuous paper 12 is guided along the conveyance direction (here, upward) so as to vertically penetrate the base 30 at a position facing the relay roller 40 in the base 30. A guide device 43 is provided. A relay roller 46 is provided on the upper side of the guide device 43 in the printing chamber 31, and the continuous paper 12 is wound around the relay roller 46 from the lower left side and is conveyed horizontally in the right direction. Yes.

  A platen 48 as a rectangular plate-like support member supported on the base 30 is provided in a region on the right side of the relay roller 46 in the printing chamber 31. A conversion roller 49 is provided on the right side of the platen 48 so as to face the relay roller 46 with the platen 48 interposed therebetween. In this case, the upper surface of the relay roller 46, the upper surface of the platen 48, and the upper surface of the conversion roller 49 are flush with each other.

  The continuous paper 12 conveyed in the horizontal right direction from the relay roller 46 along the upper surface of the platen 48 is wound on the conversion roller 49 from the upper left side, and the conveyance direction of the continuous paper 12 is changed from the horizontal right direction to the vertical downward direction. Has been. Then, the continuous paper 12 whose conveyance direction is changed vertically downward by the conversion roller 49 is conveyed into the third compartment 35 through an insertion hole (not shown) provided in the base 30. .

  Guide rails 50 (indicated by a two-dot chain line in FIG. 1) extending in the left-right direction are provided on both the front and rear sides of the platen 48 in the printing chamber 31, and the upper surface of the guide rail 50 is the upper surface of the platen 48. It is higher than the top surface. A rectangular plate-shaped carriage 51 is supported on the upper surfaces of both guide rails 50 so as to be capable of reciprocating in the left-right direction along the both guide rails 50. The carriage 51 moves in the left-right direction on both guide rails 50 based on driving of a drive mechanism (not shown).

  As shown in FIGS. 1 and 2, a rectangular plate-like slide plate 53 is supported on the lower surface of the carriage 51 so as to be slidable in the front-rear direction with respect to the carriage 51. A recording head 54 is supported on the lower surface of the slide plate 53. In addition, a plurality of valve units 55 that temporarily store ink as liquid are provided on the upper rear wall of the main body case 16 in the printing chamber 31. Each valve unit 55 temporarily stores inks of different colors.

  Each valve unit 55 is connected to the recording head 54 via an ink supply tube (not shown), and supplies each ink to the recording head 54 via each ink supply tube. A plurality of nozzle openings (not shown) are provided on the lower surface of the recording head 54, and the ink supplied from each valve unit 55 is conveyed from the nozzle openings onto the platen 48 and stopped on the continuous paper 12. Printing is performed by jetting toward the vehicle.

  Therefore, the area from the left end to the right end of the platen 48 where the continuous paper 12 is printed, which is in the middle of the transport path of the continuous paper 12, is a printing area A as a liquid ejecting area. The conveyance path of the continuous paper 12 is intermittently conveyed by the printing area A unit.

  In the main body case 16, a plurality of ink cartridges (not shown) containing inks of different colors are provided in a detachable state. Each of these ink cartridges (not shown) is connected to each valve unit 55 via an ink supply tube (not shown) so that ink can be supplied. Further, a pressurizing pump (not shown) for pressurizing the inside of each ink cartridge (not shown) is provided in the main body case 16, and each ink cartridge (not shown) is driven by driving the pressurizing pump. ) Is pressurized and supplied to each valve unit 55 via an ink supply tube (not shown).

  Flushing boxes 58 are provided on the left and right sides of the platen 48 on the base 30 to receive ink ejected from the nozzle openings (not shown) of the recording head 54 when performing flushing as needed during printing. ing. A maintenance unit 59 for performing maintenance such as cleaning of the recording head 54 is provided on the left side of the left flushing box 58 on the base 30. The maintenance unit 59 includes a cap 59a corresponding to the recording head 54, and the cap 59a can be moved up and down.

  The inside of the cap 59a communicates with a waste liquid tank (not shown) through a discharge tube (not shown). In addition, a tube pump (not shown) capable of sucking the inside of the discharge tube from the cap 59a side toward the waste liquid tank (not shown) side is provided at an intermediate position of the discharge tube. Then, when the cap 59a is lifted with the carriage 51 moved on the maintenance unit 59, the cap 59a contacts the recording head 54 so as to surround each nozzle opening (not shown) of the recording head 54. It is like that.

  Each tube of the recording head 54 is driven by driving a tube pump (not shown) with the cap 59a in contact with the recording head 54 so as to surround each nozzle opening (not shown) of the recording head 54. So-called cleaning is performed in which ink or bubbles thickened from the opening are forcibly discharged into the cap 59a. The discharged ink discharged into the cap 59a by cleaning is collected in a waste liquid tank (not shown) through a discharge tube (not shown).

  As shown in FIG. 1, a forced drying device that is long in the vertical direction as a forced drying means for forcibly drying the continuous paper 12 that has been printed in the printing area A at a position on the left side in the third compartment 35. 60 is provided. Then, the continuous paper 12 that is wound around the conversion roller 49 and conveyed vertically downward passes through the forced drying device 60 and is turned upward to the reverse roller 61 that is rotatably provided below the forced drying device 60. It is wound around and is conveyed slightly diagonally upward to the right.

  In this way, the area from the upper end to the lower end in the forced drying apparatus 60 where the continuous paper 12 is forcibly dried in the middle of the transport path of the continuous paper 12 is defined as the forced drying area B. The distance of the forced drying region B in the transport direction (here, the vertical direction) of the continuous paper 12 is a positive integer multiple of the distance of the print region A in the transport direction (here, the left-right direction) of the continuous paper 12 (this embodiment). Is set to 1). Incidentally, in the present embodiment, the distance of the forced drying region B and the distance of the printing region A are set to be equal in the transport direction of the continuous paper 12.

  In addition, an area where the continuous paper 12 is wound around the conversion roller 49 between the printing area A and the forced drying area B in the middle of the conveyance path of the continuous paper 12 is a continuous area after printing in the printing area A. Since the paper 12 is an area that is naturally dried before being forcedly dried in the forced drying area B, the paper 12 is defined as the natural drying area C. In the present embodiment, the forced drying region B and the natural drying region C constitute a drying region.

  The continuous paper 12 conveyed from the reverse roller 61 obliquely upward to the right is wound around the relay roller 62 rotatably provided at the lower right end portion in the third compartment 35 from the lower left side. 35 is conveyed upward along the right wall of the body case 16. At the position between the reverse roller 61 and the relay roller 62 in the third compartment 35, the continuous paper 12 is placed on the lower side so as to apply tension to the continuous paper 12 after forced drying in the forced drying region B. A dancer roller 65 is provided for pressing from above.

  In addition, an unillustrated unloading port for unloading the continuous paper 12 to the take-up unit 15 side is provided at a position corresponding to the upper end of the third compartment 35 on the right wall of the main body case 16. A feed driving roller 64 is rotatably provided in the chamber 35 so as to face the carry-out port at a close position. Then, by driving the feed driving roller 64, the continuous paper 12 is fed to the winding unit 15 side through the carry-out port.

  As shown in FIG. 1, the winding unit 15 includes a rectangular parallelepiped winding frame 68, and the height of the winding frame 68 is substantially the same as the height of the feed drive roller 64. A relay roller 69 is rotatably provided at the upper end of the front surface of the winding frame 68. The continuous paper 12 sent out from the carry-out port is wound around the relay roller 69 from the upper left side and is conveyed right below.

  At a position below the relay roller 69 on the front surface of the take-up frame 68, there is a guide device 72 that guides the continuous paper 12 conveyed from the relay roller 69 directly downward along the conveyance direction (downward here). Is provided. A relay roller 73 is rotatably provided at a position below the guide device 72 on the front surface of the take-up frame 68, and the continuous paper 12 conveyed and guided downward via the guide device 72 is left on the relay roller 73. Is wound around and conveyed toward the lower right.

  A winding drive shaft 74 extending forward is supported on the front surface of the winding frame 68 diagonally to the right of the relay roller 73 so as to be rotatable with respect to the winding frame 68. The continuous paper 12 conveyed from the relay roller 73 toward the lower right is wound around the winding drive shaft 74, and the continuous paper 12 is wound around the winding drive shaft 74 by rotationally driving the winding drive shaft 74. Are wound up sequentially.

  A disc-shaped rotating plate 75 that rotates integrally with the take-up drive shaft 74 is provided at the base end of the take-up drive shaft 74, and the rotary plate 75 winds the continuous paper 12 by the take-up drive shaft 74. When taking, it functions as a guide for allowing the continuous paper 12 to be taken up accurately.

Then, next, the structure of the guide apparatus used as the principal part of this invention is explained in full detail.
As shown in FIGS. 3 and 4, the guide portion 24 constituting the guide device 26 in the feeding portion 13 has an inclined surface (tapered surface) with a downward slope in a plan view on the inner side of the left end portion serving as a carry-in port for the continuous paper 12. 81a is formed. A concave portion 82 is formed in the lower portion of the corner portion on the right end side of the inclined surface 81a, and a guide roller 83a as a rotating body is accommodated in the concave portion 82. A through hole 84 penetrating in the vertical direction is formed on the upper surface side of the concave portion 82 in the guide portion 24, and the guide roller 83 a is pivotally supported by a shaft 85 inserted through the through hole 84. .

  Further, a slope (tapered surface) 81b having a slope that rises to the right in plan view is formed at a position facing the slope 81a of the guide portion 24 in the guide block 25, and the corner on the right end side of the slope 81b is similarly formed. A guide roller 83b is pivotally supported. That is, the slope 81a provided on the guide portion 24 and the slope 81b provided on the guide block 25 are tapered in plan view in which the width in the front-rear direction of the guide device 26 gradually decreases from the upstream side to the downstream side in the transport direction. The guide rollers 83a and 83b are disposed at positions facing each other in the front-rear direction.

  A plurality of rectangular slits 86 in a plan view are formed on the left end side of the upper surface of the feeding table 20 that supports the guide device 26 at intervals in the front-rear direction, and fitted on the left and right sides of the guide block 25 with the slits 86. A fitting portion (not shown) having a mating shape is formed in a hanging manner. That is, the slits 86 are formed at a plurality of locations at predetermined intervals in the front-rear direction, so that the width of the guide device 26 in the front-rear direction can be changed according to the width in the front-rear direction of the continuous paper 12. Functions as a changing means.

  Further, a fixing bolt 87 as a positioning and fixing means is rotatably provided at a central portion in the left and right direction of the guide block 25, and a male screw portion (on the outer peripheral surface on the lower end side from the middle of the rotation axis of the fixing bolt 87). (Not shown) is screwed. Then, on the upper surface side of the feeding base 20, the male screw portion of the fixing bolt 87 is screwed into a position corresponding to the fixing bolt 87 in the vertical direction with the guide block 25 fitting the fitting portion into the slit 86. A female screw part 88 is formed.

  Therefore, the guide block 25 can be removed from the feed table 20 by rotating the fixing bolt 87 in a direction in which the lower end of the rotation shaft is separated from the feed table. On the other hand, if the male screw portion of the fixing bolt 87 and the female screw portion 88 of the feeding base 20 are screwed by rotating the fixing bolt 87 in the reverse direction, the guide block 25 is positioned so as not to move on the feeding base 20. Fixed.

  As shown in FIG. 1, guide devices 43 and 72 having the same configuration are provided at a position facing the relay roller 40 in the base 30 and a position below the relay roller 69 in the winding unit 15. Is provided. Therefore, in this embodiment, the structure of the guide device 72 in the winding unit 15 will be described in detail.

  As shown in FIG. 5A and FIG. 6, the guide device 72 in the winding unit 15 extends horizontally from the front surface of the winding frame 68 along the front-rear direction, and between the winding frame 68. , A support frame 91 that pivotally supports the relay roller 69 and the relay roller 73 in a manner to sandwich the relay roller 73 in the front-rear direction is provided.

  Between the front end portion of the support frame 91 and the take-up frame 68, a plurality of support shafts 92 (two in this embodiment) extending in the horizontal direction along the front-rear direction are arranged on the left end side. The support shaft 92 is fixed to the support plate 93a in a direction perpendicular to the axis by passing through a step-like support plate 93a with a left end projecting forward on one end side. Similarly, on the other end side, the support shaft 92 has the same structure as the support plate 93a, and is inserted into a support plate 93b disposed opposite to the support plate 93a in the front-rear direction. The support plate 93b is fixed in a direction perpendicular to the axis. The support plate 93a is fixed on the right surface of the winding frame 68 so as not to move.

  As shown in FIG. 5B, the support plate 93a forms a protruding portion 94 protruding rightward from the side surface, and a fitting portion (not shown) to be fitted to the protruding portion 94 is formed. A fixed guide 95a serving as a guide means is fixed in the front-rear direction. The fixed guide 95a is provided with an accommodating space 97 for accommodating an L-shaped locking member 96 in plan view. The locking member 96 is urged rearward by an elastic member 98 fixed to the side surface of the accommodation space 97, and is inserted into a fixing hole 99 formed through the side surface of the support plate 93a in the front-rear direction. Thus, the fixed guide 95a is fixed in the left-right direction. That is, the fixed guide 95a can be mounted so as not to move relative to the support plate 93a by being locked by the locking member 96 in a state of being fitted to the protruding portion 94 of the support plate 93a. Yes.

  Further, as shown in FIG. 5A, a support plate 93b having the same configuration as the support plate 93a is disposed on the support shaft 92 so as to face the support plate 93a in the front-rear direction. The support plate 93b is mounted with a moving guide 95b as guide means having the same configuration as the fixed guide 95a so as to face the fixed guide 95a in the front-rear direction.

  Both guides 95a and 95b are guide grooves 100 having a substantially V-shaped cross-sectional view that become gradually narrower toward the bottom at a position below the right end of the relay roller 69 in a state of being attached to the support plates 93a and 93b. It has. The continuous paper 12 is sandwiched in the front-rear direction between the bottoms of the guide grooves 100 in both guides 95a and 95b, so that sliding in the left-right direction (direction perpendicular to the conveyance direction and the horizontal direction) is performed on both side edges of the continuous paper 12. Is regulated by the slope of the guide groove 100. That is, the guide grooves 100 of both guides 95a and 95b function as a restricting unit that restricts the movement of the continuous paper 12 in the left-right direction. Both guides 95 a and 95 b are provided with a guide roller 101 that rotates in conjunction with the conveyance of the continuous paper 12 at the bottom of the guide groove 100 on the upper end side that becomes the carry-in port for the continuous paper 12.

  As shown in FIGS. 5 (a) and 6, the center of the support plates 93a and 93b is a movement that supports the support plate 93b and the movement guide 95b attached to the support plate 93b so as to be movable in the front-rear direction. The shaft 102 is inserted. A handle 105 for applying a rotational force to the moving shaft 102 is provided at the front end of the moving shaft 102. The rear end side of the moving shaft 102 is inserted into the winding frame 68, and an elliptical rotating blade 106 is provided at the rear end portion of the moving shaft 102.

  A slit plate 103 is fixed in the winding frame 68, and a plurality of slits 104 extending in the vertical direction are arranged in parallel at intervals in the axial direction of the moving shaft 102. Each slit 104 is formed in a rectangular shape having a certain lateral width from the middle in the vertical direction, and gradually decreases from the middle to the bottom until the lateral width becomes the same as the thickness of the rotary blade 106. The vertical sides are formed in a curved shape having a smooth curvature. Then, by rotating the handle 105 counterclockwise, the rotary blade 106 provided at the rear end of the moving shaft 102 is fitted to the lower side of the slit 104 along this curve, The movable shaft 102 is positioned and fixed so as not to move in the axial direction.

  On the other hand, by rotating the handle 105 in the clockwise direction, which is the clockwise direction, the rotary blade 106 is brought into a non-fitted state with respect to the slit 104. Therefore, the moving shaft 102 is movable in the axial direction. That is, the slit 104 functions as a guide width changing unit that can change the width in the front-rear direction of the guide device 72 by being formed at a plurality of locations at predetermined intervals in the front-rear direction.

  Therefore, the operation of the ink jet printer 11 according to the present embodiment configured as described above will be described below, particularly focusing on the function of the guide device that guides the continuous paper 12 along the transport direction.

First, the operation of the guide device 26 in the feeding unit 13 will be described.
In the ink jet printer 11 according to this embodiment, the long continuous paper 12 is guided by the guide device 26 in accordance with the driving of the drawing drive roller 36 and the winding drive shaft 74 disposed in the main body 14 and the winding unit 15. Thus, the sheet is transported from the feeding portion 13 toward the main body portion 14 in a state where movement in the front-rear direction is restricted. A plurality of slits 86 are formed at predetermined intervals in the front-rear direction on the upper surface of the feeding table 20 that supports the guide device 26. Then, by changing the position of the slit 86 in which the guide block 25 is fitted and adjusting the width of the guide device 26 in the front-rear direction according to the width of the continuous paper 12 in the front-rear direction, The edge is guided along the conveying direction by sliding with respect to the guide portion 24 and the guide block 25.

  By the way, when the continuous paper 12 is conveyed, the continuous paper 12 may meander in the front-rear direction. If the continuous paper 12 is carried into the feeding portion 13 in such a state that the continuous paper 12 meanders in the front-rear direction, the width of the continuous paper 12 gradually decreases from the upstream side to the downstream side in the transport direction. It is guided along the inclined surfaces 81a and 81b formed so as to form a tapered shape in plan view, and the conveyance direction is corrected while sliding on the corners of the inclined surfaces 81a and 81b. Therefore, the continuous paper 12 may be bent or wear-damaged due to sliding contact of the side edges with the corners of the inclined surfaces 81a and 81b.

  In this respect, the guide device 26 according to the present embodiment is configured such that the guide rollers 83a and 83b are pivotally supported at the corners on the right end side of the inclined surfaces 81a and 81b formed on the left end side as the carry-in port for the continuous paper 12. Has been. Therefore, even if the continuous paper 12 is carried into the guide device 26 while meandering in the front-rear direction, the continuous paper 12 is guided by the guide rollers 83a and 83b while being guided to the right end along the inclined surfaces 81a and 81b. Then, the guide rollers 83a and 83b rotate in conjunction with each other, so that the conveyance direction is smoothly corrected.

Next, the operation of the guide device 72 in the winding unit 15 will be described.
In the guide device 72 in the present embodiment, the moving shaft 102 is inserted in the center part of the support plates 93a and 93b along the front-rear direction. Then, by rotating the handle 105 provided at the front end portion of the moving shaft 102 in the clockwise direction, which is a clockwise direction, the elliptical rotary blade 106 provided at the rear end portion of the moving shaft 102 is slit 104. In the non-fitted state, the moving shaft 102 is movable in the axial direction. On the other hand, by rotating the handle 105 in the counterclockwise direction to the left, the rotary blade 106 is fitted to the slit 104, so that the movable shaft 102 is positioned and fixed so as not to move in the axial direction.

  The slits 104 are formed at a plurality of locations at predetermined intervals in the front-rear direction, which is the moving direction of the moving shaft 102. Therefore, by changing the slit 104 in which the rotary blade 106 is fitted as appropriate and adjusting the width in the front-rear direction of the guide device 72 according to the width in the front-rear direction of the continuous paper 12, the continuous paper 12 The conveying direction is corrected by sliding the edge on the fixed guide 95a and the moving guide 95b.

  By the way, when the continuous paper 12 is transported, the continuous paper 12 may be shaken in the left-right direction (the direction orthogonal to the transport direction and the horizontal direction). If the continuous paper 12 is carried into the winding unit 15 in such a manner that the continuous paper 12 is shaken in the left-right direction in this way, the left-right shake is suppressed in order to allow the continuous paper 12 to be taken up accurately. It is desirable to do.

  In this regard, the fixed guide 95a and the moving guide 95b constituting the guide device 72 in the present embodiment are substantially V-shaped in cross-section at a position below the right end portion of the relay roller 69 in a state of being mounted on the support plates 93a and 93b. A guide groove 100 having a shape is provided, and the continuous paper 12 is conveyed while sliding while being sandwiched in the front-rear direction at the bottom of the guide groove 100 in both guides 95a and 95b. For this reason, the continuous paper 12 can be prevented from shaking in the left-right direction of the continuous paper 12 during conveyance by restricting the sliding in the left-right direction at the front and rear side edges by the slope of the guide groove 100. ing.

  In addition, the guide device 72 in the present embodiment includes a guide roller 101 that rotates in conjunction with the conveyance of the continuous paper 12 at the bottom of the guide groove 100 on the upper end side that is the carry-in port for the continuous paper 12. Therefore, even if the continuous paper 12 is carried in a state in which the continuous paper 12 is displaced in the front-rear direction, the conveyance direction of the continuous paper 12 is smoothly corrected by the interlocking rotation of the guide roller 101.

According to this embodiment described above, the following effects can be obtained.
(1) In the above-described embodiment, slopes 81 a and 81 b are formed on the inner side of the guide portion 24 constituting the guide device 26 in the feeding portion 13 and the left end portion serving as the carry-in entrance for the continuous paper 12 in the guide block 25. Guide rollers 83a and 83b are pivotally supported at the corners on the right end side of the inclined surfaces 81a and 81b. Therefore, after the continuous paper 12 is guided to the right end side along the inclined surfaces 81a and 81b and delivered to the guide rollers 83a and 83b, the guide rollers 83a and 83b rotate in conjunction with each other, so that the conveyance direction is smooth. It will be corrected.

  (2) Further, the inclined surface 81a provided in the guide portion 24 and the inclined surface 81b provided in the guide block 25 are planes in which the width in the front-rear direction of the guide device 26 gradually decreases from the upstream side to the downstream side in the transport direction. It is formed so as to have a visual taper shape. Therefore, even when the continuous paper 12 is carried in a state where the front and rear are displaced, the conveyance direction of the continuous paper 12 is changed by guiding the side edge of the continuous paper 12 from the upstream side to the downstream side along the slope. Smooth correction is possible.

  (3) In addition, a plurality of slits 86 are formed at predetermined intervals in the front-rear direction on the upper surface of the feeding table 20 that supports the guide device 26, and the slits 86 in which the guide blocks 25 are fitted are appropriately changed. Thus, the width of the guide device 26 in the front-rear direction can be adjusted to match the width of the continuous paper 12 in the front-rear direction. For this reason, even when the width of the continuous paper 12 in the front-rear direction is changed, the guide portion 24 and the guide block 25 are relatively moved so that the guide width matches the width of the continuous paper 12 after the change. A simple guide function can be maintained.

  (4) In the above embodiment, the fixed guide 95a and the moving guide 95b constituting the guide device 72 in the winding portion 15 are below the rear end portion of the relay roller 69 in a state where the guide plate 72 is mounted on the support plates 93a and 93b. A guide groove 100 having a substantially V-shaped cross-sectional view is provided at the position. Therefore, the continuous paper 12 is sandwiched in the front-rear direction at the bottoms of the guide grooves 100 in both guides 95a and 95b, and the lateral sliding on both side edges of the continuous paper 12 is regulated by the inclined surfaces of the guide grooves 100. It is possible to suppress the shaking of the continuous paper 12 in the left-right direction at the time.

  (5) In addition, a guide roller 101 that rotates in conjunction with the conveyance of the continuous paper 12 is provided at the bottom of the guide groove 100 on the upper end side that serves as an entrance for the continuous paper 12. Therefore, it is possible to smoothly correct the conveyance direction of the continuous paper 12 by rotating the guide roller 101 in conjunction with it.

  (6) In addition, an elliptical rotary blade provided at the rear end of the moving shaft 102 is provided at the center of the support plate 93b by rotating the handle 105 provided at the front end of the moving shaft 102. By engaging 106 with the slit 104, it can be positioned and fixed so as not to move in the axial direction. Therefore, by appropriately changing the slit 104 in which the rotary blade 106 is fitted and adjusting the width in the front-rear direction of the guide device 72 according to the width in the front-rear direction of the continuous paper 12, an accurate guide function for the continuous paper 12 is provided. Can be maintained.

In addition, you may change the said embodiment as follows.
In the above-described embodiment, a guide roller that rotates in conjunction with the continuous paper 12 may be further disposed in the middle of the conveyance direction on the downstream side of the carry-in port of the continuous paper 12 in each guide device 26, 43, 72. Good. For example, in the case of the guide device 26, a plurality of guide rollers 83 a and 83 b are continued along the conveyance direction of the continuous paper 12 at a portion of the guide portion 24 and the guide block 25 facing each other across the continuous paper 12 from both sides. It may be provided. As described above, by arranging a plurality of guide rollers in the conveyance path of the continuous paper 12, the conveyance direction of the continuous paper 12 can be corrected more smoothly.

In the above embodiment, a guide groove having a substantially V shape in cross section may be formed in the guide device 26 in the feeding portion 13.
In the above-described embodiment, instead of forming the guide groove 100 having a substantially V shape in cross section in the guide device, for example, a guide groove having a U shape in a plan view may be formed. That is, it is only necessary to have a structure in which the side edge of the continuous paper 12 is engaged in the width direction.

  In the above embodiment, the guide roller that rotates in conjunction with the continuous paper 12 is either one of the pair of guide means constituting the guide device, that is, in the case of the guide device 26, whichever of the guide portion 24 and the guide block 25 On the other hand, in the case of the guide apparatus 72, it is good also as a structure provided only in any one of the fixed guide 95a and the movement guide 95b.

  In the above embodiment, the guide device 26 in the feeding portion 13 does not have a slope so as to have a tapered shape in plan view, and guide rollers 83a and 83b are formed at the corners of the upstream end serving as the carry-in port for the continuous paper 12. You may comprise so that it may be provided.

In the above embodiment, the target to be conveyed is not limited to the continuous paper 12. For example, a long resin film may be used.
In the above embodiment, the liquid ejecting apparatus is embodied in the ink jet printer 11, but other liquids other than ink (a liquid form in which particles of a functional material are dispersed or mixed in a liquid, a fluid form such as a gel) It may be embodied in a liquid ejecting apparatus that ejects (including). The “liquid” in the present specification includes, for example, an inorganic solvent, an organic solvent, a solution, a liquid resin, a liquid metal (metal melt), and the like, as well as a liquid and a fluid.

1 is a schematic front view of an ink jet printer. 1 is a schematic plan view of an ink jet printer. The expansion perspective view which shows the guide apparatus of an extension part. The enlarged plan view which shows the guide apparatus of an extension part. (A) is an enlarged perspective view which shows the guide apparatus of a winding-up part. (B) is an enlarged plan view showing a guide device of a winding part. The expanded sectional view which shows the guide apparatus of a winding-up part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Printer as liquid ejecting apparatus, 12 ... Continuous paper as target, 24 ... Guide part as guide means, 25 ... Guide block as guide means, 81a, 81b ... Slope as taper surface, 83a, 83b, 101 A guide roller as a rotating body, 86, 104 ... a slit as a guide width changing means, 95a ... a fixed guide as a guide means, 95b ... a moving guide as a guide means, 100 ... a guide groove as a regulating means.

Claims (5)

In a liquid ejecting apparatus that ejects liquid onto a long target conveyed from the upstream side,
The target transport path is provided with a pair of guide means arranged in parallel along the target transport direction, and at least at a position serving as a target carry-in port in at least one of the pair of guide means. A liquid ejecting apparatus comprising: a rotating body that rotates in conjunction with the transported target. The liquid ejecting apparatus according to claim 1,
The position of the pair of guide means serving as the target carry-in port is a horizontal direction perpendicular to the target transport direction of the pair of guide means as it goes from the upstream side to the downstream side in the target transport direction. A liquid ejecting apparatus, wherein a tapered surface whose width gradually decreases is formed. The liquid ejecting apparatus according to claim 1 or 2,
A liquid ejecting apparatus comprising: a guide width changing unit configured to change a width in a horizontal direction orthogonal to a conveyance direction of the target in the pair of guide units. In the liquid ejecting apparatus according to any one of claims 1 to 3,
The liquid ejecting apparatus according to claim 1, wherein the pair of guide means is formed with a guide groove that is gradually narrowed toward a bottom portion at a portion facing the target from both sides. In the liquid ejecting apparatus according to any one of claims 1 to 4,
The liquid ejecting apparatus according to claim 1, wherein the guide unit is further provided with the rotator on the downstream side of the carry-in port of the target along the transport path.

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