WO2016104125A1 - Procédé de réglage de tension de bande transporteuse, dispositif de transport, et dispositif d'impression à jet d'encre - Google Patents

Procédé de réglage de tension de bande transporteuse, dispositif de transport, et dispositif d'impression à jet d'encre Download PDF

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Publication number
WO2016104125A1
WO2016104125A1 PCT/JP2015/084288 JP2015084288W WO2016104125A1 WO 2016104125 A1 WO2016104125 A1 WO 2016104125A1 JP 2015084288 W JP2015084288 W JP 2015084288W WO 2016104125 A1 WO2016104125 A1 WO 2016104125A1
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WO
WIPO (PCT)
Prior art keywords
roller
tension
conveyor belt
adjusting
belt
Prior art date
Application number
PCT/JP2015/084288
Other languages
English (en)
Japanese (ja)
Inventor
将則 樽井
哲一 松ヶ野
Original Assignee
コニカミノルタ株式会社
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 コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Priority to JP2016566090A priority Critical patent/JP6562000B2/ja
Publication of WO2016104125A1 publication Critical patent/WO2016104125A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/44—Belt or chain tensioning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley

Definitions

  • the present invention relates to a tension adjustment method for a conveyor belt, a conveyor apparatus, and an inkjet recording apparatus.
  • an ink jet recording apparatus is provided with a transport apparatus that transports a recording medium by rotationally driving a transport belt stretched between a drive roller and a driven roller by the drive roller.
  • the strain of the roller is measured by a strain gauge attached to the roller, and the roller is moved by the stepping motor according to the measured value.
  • a method for adjusting the distance between the rollers and adjusting the tension of the conveyor belt has been proposed (for example, see Patent Document 1).
  • the strain gauge is provided not on the peripheral surface portion of the roller in contact with the conveyance belt but on the roller shaft portion positioned outside the portion where the conveyance belt of the roller is stretched. Therefore, the distortion of the roller cannot be measured with high accuracy, and the tension of the conveyor belt cannot be adjusted with high accuracy.
  • An object of the present invention is to provide a conveyor belt tension adjusting method capable of accurately adjusting the tension of the conveyor belt, a conveyor device capable of accurately adjusting the tension of the conveyor belt, and an ink jet recording apparatus including the same. .
  • the invention according to claim 1 is a method for adjusting the tension of the conveyor belt.
  • a transport belt tension adjusting method for adjusting the tension of a transport belt in a transport device that is provided in an ink jet recording apparatus and transports a recording medium by an endless transport belt stretched between a first roller and a second roller.
  • the invention according to claim 2 is the method for adjusting the tension of the conveyor belt according to claim 1, In the detection step, a displacement amount due to bending of a central portion in the axial direction of the conveyor belt stretched portion of the first roller is detected.
  • the invention according to claim 3 is the tension adjustment method for the conveyor belt according to claim 1 or 2, In the detection step, a displacement amount due to bending of the central portion in the axial direction and both end portions in the axial direction of the conveyor belt stretched portion of the first roller is detected.
  • Invention of Claim 4 is the tension adjustment method of the conveyance belt as described in any one of Claim 1 to 3, In the detection step, a displacement amount due to bending in the entire axial direction of the conveyor belt stretched portion of the first roller is detected.
  • the invention according to claim 5 is the tension adjustment method for the conveyor belt according to any one of claims 1 to 4, In the tension applying step and the adjusting step, the first roller is fixed and the second roller is moved.
  • Invention of Claim 6 is a conveying apparatus, A conveyance device that is provided in an inkjet recording apparatus and conveys a recording medium by an endless conveyance belt stretched between a first roller and a second roller, An adjustment unit that adjusts the tension of the conveyor belt by moving at least one of the first roller and the second roller; A deflection detection sensor for detecting a displacement amount due to deflection of any of the conveyor belt stretched portions of the first roller with reference to before the tension is applied to the conveyor belt; The adjustment unit moves at least one of the first roller and the second roller to apply tension to the transport belt, and the first is based on before the tension is applied to the transport belt by the deflection detection sensor.
  • a displacement amount due to bending of any one of the conveyor belt stretched portions of one roller is detected, and at least one of the first roller and the second roller is moved by the adjusting unit based on the displacement amount, and the conveyor belt is moved.
  • a control unit for adjusting the tension of It is characterized by providing.
  • the invention according to claim 7 is the transfer apparatus according to claim 6,
  • the adjusting unit moves at least one axial end portion of each of the first roller and the second roller.
  • Invention of Claim 8 is a conveying apparatus of Claim 6 or 7, Comprising: The first roller is fixed; The adjusting unit moves the second roller.
  • the invention according to claim 9 is an inkjet recording apparatus, A transport apparatus according to any one of claims 6 to 8, An inkjet head that ejects ink onto a recording medium conveyed by the conveying device; It is characterized by providing.
  • a conveyor belt tension adjusting method capable of accurately adjusting the tension of the conveyor belt
  • a conveyor device capable of accurately adjusting the tension of the conveyor belt
  • an ink jet recording apparatus including the same.
  • FIG. 1 is a perspective view showing an example of an ink jet recording apparatus 1 of the present invention.
  • the inkjet recording apparatus 1 includes, for example, a transport apparatus 2 that transports a recording medium along a horizontal direction, and a plurality of heads 3 that eject ink from above onto the transported recording medium (see FIG. 7). ), A main scanning device 5 that transports the carriage 4 along a horizontal direction orthogonal to the transport direction of the recording medium, and an ink supply system that supplies ink to each head 3 mounted on the carriage 4. (Not shown) and a frame 100 that supports the entire apparatus.
  • the horizontal direction and the direction along the conveyance direction of the recording medium are the Y-axis direction
  • the horizontal direction and the direction along the conveyance direction of the carriage 4 are the X-axis direction or the main scanning direction
  • the vertical direction is sometimes referred to as the Z-axis direction.
  • FIG. 2 is a perspective view of the transfer device 2
  • FIG. 3 is a schematic plan view of the transfer device 2
  • FIGS. 4A and 4B are perspective views showing one end and the other end of the meandering adjustment unit 26 provided in the transfer device 2, respectively.
  • FIG. 1 is a perspective view of the transfer device 2
  • FIG. 3 is a schematic plan view of the transfer device 2
  • FIGS. 4A and 4B are perspective views showing one end and the other end of the meandering adjustment unit 26 provided in the transfer device 2, respectively.
  • FIG. 4A and 4B are perspective views showing one end and the other end of the meandering adjustment unit 26 provided in the transfer device 2, respectively.
  • the conveying device 2 includes a driving roller 21 having a driving motor 211 for rotational driving, a driven roller 22 driven by the driving roller 21, an endless conveying belt 23 stretched around the driving roller 21 and the driven roller 22, Laser sensors (deflection detection sensors) 24a to 24c for detecting a displacement amount due to the bending of the stretched portion of the conveying belt 23 of the driving roller 21 with reference to before the tension is applied to the belt 23, and the driven roller 22 are moved and conveyed.
  • the conveyor belt stretched portion is a portion where the conveyor belt 23 is stretched in the axial direction of the drive roller 21.
  • the drive roller 21 is rotatably supported and is disposed so as to extend in the X-axis direction.
  • the drive motor 211 is a drive source for rotationally driving the drive roller 21, and is attached to one end side of the drive roller 21.
  • the drive motor 211 rotates the drive roller 21 by a predetermined amount to transport the recording medium by a predetermined distance in the transport direction F, and stops the head. 3 starts and ends scanning in the direction opposite to the main scanning direction X, the drive roller 21 is rotated again by a predetermined amount, and the recording medium is transported by a predetermined distance in the transport direction F and stopped.
  • the medium is conveyed intermittently.
  • As the recording medium it is possible to use resin films, metals, etc. in addition to paper and fabric.
  • the driven roller 22 is rotatably supported, is disposed so as to extend in the X-axis direction, and is disposed in parallel to the driving roller 21.
  • the driven roller 22 is made of the same material and size as the drive roller 21 and does not include a drive source. Further, the driven roller 22 can be moved in the Y-axis direction by the adjusting unit 25, and the position of the driven roller 22 can be adjusted with respect to the driving roller 21.
  • the conveyor belt 23 is formed in an endless shape and is stretched between the driving roller 21 and the driven roller 22.
  • the conveying belt 23 circulates between the driving roller 21 and the driven roller 22 and conveys the recording medium placed on the upper surface thereof in the conveying direction F along the Y-axis direction.
  • the rotation of the driving roller 21 is stopped, the rotation between both rollers is stopped, and the conveyance of the recording medium is stopped.
  • the laser sensors 24a to 24c are respectively supported by a support base 241 and fixed so as to be arranged inside the conveyor belt 23.
  • the laser sensors 24a to 24c are disposed in contact with the circumferential surface of the drive roller 21 in a non-contact manner inside the transport belt 23.
  • the laser sensor 24a is the central portion in the axial direction of the drive roller 21, and the laser sensor 24b is the drive roller 21.
  • the end portion on the side of the drive motor 211 and the laser sensor 24c are disposed opposite to the end portion of the drive roller 21 on the side opposite to the drive motor 211, respectively.
  • the laser sensors 24a to 24c are provided in a non-contact manner with respect to the driving roller 21, it is possible to prevent the rotational driving of the driving roller 21 from being hindered and the peripheral surface from being damaged.
  • the laser sensors 24a to 24c arranged in this way detect the distance between the driving roller 21 and the amount of displacement due to the bending of the driving roller 21 with reference to before the tension is applied to the conveyor belt 23. To detect. Specifically, when tension is applied to the conveyor belt 23, a load is applied to the driving roller 21 and the driven roller 22, and the driving roller 21 and the driven roller are driven so that the axial center portions of the driving roller 21 and the driven roller 22 approach each other. Each of the rollers 22 bends slightly. For this reason, there is a difference in the distance between the driving roller 21 and each of the laser sensors 24a to 24c as compared to before the tension is applied.
  • the laser sensors 24a to 24c detect the distance from the driving roller 21 before the tension is applied to the conveyor belt 23, and after the tension is applied to the conveyor belt 23 or after the tension is adjusted.
  • the distance to the drive roller 21 it is possible to detect the amount of displacement due to the deflection of the drive roller 21 with reference to before tension is applied.
  • the driving roller 21 bends and the amount of displacement increases. Therefore, by detecting the amount of displacement and adjusting the distance between the driving roller 21 and the driven roller 22 based on the amount of displacement. The tension of the conveyor belt 23 can be adjusted.
  • the driving roller 21 and the driven roller 22 are bent most greatly in the axial central portion, and therefore, based on the displacement amount of the axial central portion of the driving roller 21 detected by the laser sensor 24a.
  • the tension of the conveyor belt 23 can be adjusted with high accuracy.
  • the laser sensors 24b and 24c detect the displacement amount of the driving roller 21 at both axial end portions of the driving roller 21, respectively, when the displacement amount is different at both axial end portions of the driving roller 21. This can be detected.
  • there is a difference in the amount of displacement at both ends in the axial direction of the drive roller 21 there is also a difference in the tension applied to the conveyor belt 23 on both sides in the width direction.
  • the tension of the conveyor belt 23 can be adjusted uniformly in the width direction (X-axis direction).
  • the adjusting unit 25 is provided in the vicinity of the driven roller 22 and moves the driven roller 22 relative to the driving roller 21 by moving the driven roller 22 in the Y-axis direction.
  • the adjustment unit 25 includes a housing 251 that rotatably supports the driven roller 22, a rail 252 that supports the housing 251 so as to be slidable in the Y-axis direction, and one end attached to the housing 251 and rotated.
  • an adjustment screw 253 that moves in the Y-axis direction is provided.
  • the adjustment screw 253 is supported by the housing 27 so as to be movable in the Y-axis direction by rotating, and the tip of the adjustment screw 253 is attached to the housing 251.
  • the adjustment screw 253 By rotating the adjustment screw 253, the position of the tip of the adjustment screw 253 moves in a direction away from the drive roller 21 in the Y-axis direction.
  • the housing 251 is pressed against the tip of the adjustment screw 253 and moves in a direction away from the drive roller 21 in the Y-axis direction.
  • the adjustment screw 253 is rotated in the reverse direction, the position of the tip of the adjustment screw 253 moves in a direction approaching the drive roller 21 in the Y-axis direction.
  • the housing 251 is pulled by the adjustment screw 253 and moves in the direction approaching the drive roller 21 in the Y-axis direction.
  • the driven roller 22 Since the driven roller 22 is attached to the housing 251, the driven roller 22 moves with the movement of the housing 251, and the distance between the driving roller 21 and the driven roller 22 can be adjusted. Thereby, while being able to give tension to the conveyance belt 23 stretched around the driving roller 21 and the driven roller 22, the tension can be adjusted.
  • the housing 251, the rail 252, and the adjusting screw 253 constituting the adjusting unit 25 are provided in the vicinity of both ends in the axial direction of the driven roller 22, and the adjusting unit 25 has both ends in the axial direction of the driven roller 22 respectively. Can be moved. For this reason, the distance between the axial direction one end part of the drive roller 21 and the driven roller 22, and the distance between the axial direction other end part of the drive roller 21 and the driven roller 22 can be adjusted separately, respectively.
  • the tension applied to the conveyor belt 23 can be adjusted uniformly on both sides in the width direction.
  • the meandering adjustment unit 26 is provided between the drive roller 21 and the driven roller 22 and is driven under the control of the control unit 9 to adjust the moving direction of the transport belt 23. Specifically, the meandering adjustment unit 26 is attached to the housing 27 so that the roller 261 that is rotatably supported and arranged so as to extend in the X-axis direction and the one end 261a in the axial direction of the roller 261 are attached to the casing 27. A portion 262, a housing 263 that supports the other end 261b in the axial direction of the roller 261, a rail 264 that supports the housing 263 so as to be slidable in the Y-axis direction, and the like.
  • the roller 261 is provided inside the conveyor belt 23 and is disposed in contact with the inner peripheral surface of the conveyor belt 23.
  • the housing 263 on the rail 264 By moving the housing 263 on the rail 264 in one direction in the Y-axis direction, the other end portion 261b of the roller 261 moves in either direction in the Y-axis direction with the one end portion 261a of the roller 261 as a fulcrum.
  • the roller 261 is disposed obliquely with respect to the X-axis direction, and the moving direction of the conveying belt 23 that is rotated by the driving roller 21 can be adjusted to prevent the conveying belt 23 from meandering.
  • the roller 261 is in contact with the inner peripheral surface of the transport belt 23, but does not affect the tension of the transport belt 23.
  • FIG. 5 is a block diagram showing a control system of the inkjet recording apparatus 1.
  • the control unit 9 shown in FIG. 5 controls the entire inkjet recording apparatus 1, but here, only the configuration of the transport device 2 is illustrated, and the other configurations are not illustrated.
  • the control unit 9 is connected to each part constituting the transport device 2 and controls each part constituting the transport device 2.
  • the control unit 9 includes a CPU 91, a RAM 92, a ROM 93, and the like.
  • the CPU 91 reads out and executes various programs, data, and the like corresponding to the processing contents from a storage device such as the ROM 93, and controls the operation of each unit of the transport device 2 according to the executed processing contents.
  • the RAM 92 temporarily stores various programs and data processed by the CPU 91.
  • the ROM 93 stores various programs and data read by the CPU 91 and the like.
  • the control unit 9 moves the driven roller 22 by the adjustment unit 25 to apply tension to the transport belt 23, and uses the laser sensor 24a to 24c as a reference before the tension is applied to the transport belt 23.
  • the amount of displacement due to the deflection of the central portion and both ends of the driving roller 21 is detected, and the driven roller 22 is moved by the adjusting unit 25 based on the amount of displacement to adjust the tension of the transport belt 23.
  • the distance between the axes of the driving roller 21 and the driven roller 22 when the conveying belt 23 is tensioned is w1, and the distance between the driving roller 21 and the driven roller 22 when no tension is applied to the conveying belt 23.
  • w2 is w2
  • FIG. 6 illustrates a tension adjustment process in which tension is applied to the conveyor belt 23 spanned between the driving roller 21 and the driven roller 22 when the conveyor device 2 is manufactured or installed, or when the conveyor belt 23 is replaced. It is a flowchart which shows an example.
  • the controller 9 detects the distance from the driving roller 21 by the laser sensors 24a to 24c (step S101). At this time, the conveyor belt 23 is stretched between the driving roller 21 and the driven roller 22, but no tension is applied to the conveyor belt 23.
  • control unit 9 causes the adjustment unit 25 to move the driven roller 22 in a direction away from the driving roller 21 and applies tension to the transport belt 23 (step S102).
  • control unit 9 detects the distance from the driving roller 21 by using the laser sensors 24a to 24c, so that the axially central portion and both end portions of the driving roller 21 with reference to before the tension is applied to the conveying belt 23.
  • the amount of displacement due to the bending of is detected (step S103). That is, the laser sensors 24a to 24c detect the difference between the distance detected in step S101 and the distance detected in step S103 as the displacement amount of the driving roller 21.
  • the control unit 9 determines whether or not the displacement detected in step S103 has reached the target value (step S104).
  • the target value is the driving roller 21 when an optimum tension is applied to the transport belt 23 so that the image quality is not deteriorated on the transported recording medium and the rotation failure of the transport belt 23 does not occur. This is a displacement amount due to the bending of, and is a value obtained in advance by simulation, testing, or the like.
  • step S104 the control unit 9 adjusts the position of the driven roller 22 by the adjustment unit 25 and adjusts the tension applied to the transport belt 23. (Step S105). The control unit 9 adjusts the distance between the driven roller 22 and the driving roller 21 and then performs the process of step S103 again.
  • step S104 When it is determined that the detected displacement amount has reached the target value (step S104; YES), the control unit 9 ends the tension adjustment process.
  • the driven roller 22 is moved in the direction away from the drive roller 21 in the Y-axis direction to apply tension to the transport belt 23 (tension applying step).
  • tension applying step the conveyor belt 23 is stretched over the driving roller 21 and the driven roller 22, but the conveyor belt 23 is in a relaxed state and no tension is applied.
  • the laser sensors 24a to 24c detect displacement amounts due to bending of the central portion of the driving roller 21 and the both end portions in the axial direction with reference to before the tension is applied to the conveying belt 23 (detection step). Specifically, the distance to the driving roller 21 is detected in advance by the laser sensors 24a to 24c before tension is applied to the transport belt 23, and further, after the tension is applied to the transport belt 23 or the tension is adjusted. Later, the distance to the drive roller 21 is detected by the laser sensors 24a to 24c to detect the amount of displacement. In the detection step, it is also possible to detect the amount of displacement due to the deflection in the entire axial direction after the conveyor belt 23 stretched portion of the drive roller 21. In this case, for example, the detection may be performed by a laser sensor configured to be capable of scanning in the X-axis direction, or may be detected by a plurality of laser sensors provided along the X-axis direction.
  • the tension of the conveyor belt 23 is adjusted by moving the driven roller 22 to one of the Y-axis directions based on the detected displacement amount (adjustment process). Specifically, the tension of the conveyor belt 23 is adjusted by moving the driven roller 22 by the adjustment unit 25 so that the displacement detected by the laser sensors 24a to 24c becomes a preset target value. .
  • the control unit 9 moves the driven roller 22 by the adjusting unit 25 in the tension applying step and the adjusting step.
  • the user manually adjusts the adjusting screw 253 of the adjusting unit 25.
  • the driven roller 22 may be moved by rotating at.
  • the displacement detected by the laser sensors 24a to 24c is displayed on a monitor (not shown) or the like, and the user approaches the preset target value so that the displacement is close to the target value.
  • the adjusting roller 25 moves the driven roller 22 to adjust the tension of the transport belt 23.
  • the displacement amount is detected by the laser sensors 24a to 24c provided in the conveyor device 2 in the detection step, but the present invention is not limited to this.
  • the detection process was performed after attaching the laser sensor to the conveyor, and the tension adjustment of the conveyor belt was completed.
  • the laser sensor may be removed later.
  • the frame 100 includes a rectangular main body portion 101 extending along the X-axis direction, a first base portion 102 that supports one end portion in the X-axis direction of the main body portion 101, and the main body portion 101. And the second base portion 103 that supports the other end portion in the X-axis direction.
  • the first base portion 102 supports one end portion of the main body portion 101 from below while storing and holding a nozzle moisturizing portion and the like (not shown) therein.
  • the second base 103 supports the other end of the main body 101 from below while storing and holding a maintenance section (not shown) therein.
  • the main body 101 stores and holds a pair of carriage rails 51, 51 of the main scanning device 5, which will be described later, in the X-axis direction, and the carriage 4 extends in the X-axis direction inside the main body 101. Are transported. Further, the first base portion 102 and the second base portion 103 are disposed on both sides in the X-axis direction with the above-described transport device 2 interposed therebetween, and the main body portion 101 is installed above the transport device 2. Thus, it is possible to form an image by ejecting ink from each head 3 mounted on the carriage 4 while transporting the carriage 4 in a direction orthogonal to the transport direction of the recording medium by the transport device 2.
  • the main scanning device 5 includes a pair of bar-shaped carriage rails 51 and 51 supported so as to extend along the X-axis direction inside the main body 101 of the frame 100.
  • the pair of carriage rails 51 and 51 are provided so as to straddle the upper portion of the conveyance belt 23 of the conveyance device 2.
  • a box-shaped carriage 4 is supported on the carriage rails 51 and 51 so as to be reciprocally movable along the X-axis direction.
  • the carriage 4 is a substantially rectangular casing with an open top, and a plurality of heads 3 are mounted on the bottom plate. As shown in FIG. 1, the carriage 4 has arm portions 42 and 42 extending toward both sides in the Y-axis direction at the upper part of both side surfaces in the Y-axis direction, and the arm portions 42 and 42 are respectively linear guides.
  • the carriage rails 51 and 51 are placed on the carriage rails 51 and 51 so that the carriage rails 51 and 51 can slide along the X-axis direction.
  • a linear motor is provided between the carriage rails 51 and 51 and the arm portions 42 and 42 of the carriage 4.
  • each carriage rail 51, 51 is equipped with a linear motor stator
  • each arm portion 42, 42 of the carriage 4 is equipped with a mover
  • the carriage 4 is controlled by current control of the stator side coil. A transport operation along the X-axis direction is given.
  • FIG. 7 is a schematic view of the bottom plate 41 of the carriage 4 as viewed from above.
  • this inkjet recording apparatus 1 Y (yellow), Lm (light magenta), Or (orange), M (magenta), Bk (black), Bl (blue), Lk (light black), C (cyan), Lc
  • Each of the nine colors of (light cyan) includes nine heads 3, and a total of 81 heads 3 are attached to the bottom plate of the carriage 4.
  • the head groups of each color are arranged in the order of Y, Lm, Or, M, Bk, Bl, Lk, C, and Lc along the X-axis direction, and the nine heads 3 of each head group are arranged.
  • the bottom plate 41 is provided with a slit-shaped opening along the Y-axis direction for each mounting position of each head 3, and each head 3 attached to the bottom plate 41 from above is directly below the carriage 4 through the opening.
  • Ink droplets can be ejected.
  • an opening is shown only for the Y color, and the other colors are omitted.
  • the nine heads 3 are arranged in a staggered manner for each color, so that the ink of each color can be placed at an arbitrary position within the range of almost the entire width in the Y-axis direction on the bottom plate 41 of the carriage 4. It is possible to perform discharge.
  • the head 3 has a plurality of nozzle rows along the Y-axis direction arranged in the X-axis direction on the nozzle plate facing the recording medium conveyed at the bottom.
  • the head 3 includes an ink flow path for guiding ink to each nozzle and a plurality of piezoelectric elements provided for each nozzle.
  • the ink flow path communicates with a first port and a second port provided in the upper portion of the head 3, and ink is supplied to each nozzle from an ink supply system (not shown) via the first port. The excess ink is discharged from the second port.
  • the conveyance device 2 that is provided in the inkjet recording apparatus 1 and conveys the recording medium by the endless conveyance belt 23 stretched around the driving roller 21 and the driven roller 22, the conveyance belt 23.
  • the tension adjustment method of the conveyor belt that adjusts the tension of the belt includes a tension applying step of moving the driven roller 22 to apply tension to the conveyor belt 23, and before applying tension to the conveyor belt 23 by the laser sensors 24a to 24c.
  • the displacement amount due to the bending of the central portion in the axial direction in the stretched portion of the conveying belt 23 of the driving roller 21 is detected by the laser sensors 24a to 24c.
  • the tension can be adjusted based on the amount of displacement, and the tension of the conveyor belt 23 can be adjusted with higher accuracy.
  • the laser sensors 24a to 24c detect displacement amounts due to bending of the central portion in the axial direction and both end portions in the axial direction of the conveyor belt 23 stretched portion of the driving roller 21, so that both axial ends of the driving roller 21 are detected. It is possible to detect the left-right difference in the amount of displacement of the portion, and by adjusting the tension of the conveyor belt 23 based on this difference, the tension applied to the conveyor belt 23 can be adjusted uniformly in the width direction.
  • the displacement amount due to the deflection in the entire axial direction of the conveyor belt 23 stretched portion of the driving roller 21 is detected by the laser sensor, the displacement amount in the entire axial direction of the driving roller 21 is detected.
  • the driving roller 21 is fixed and the driven roller 22 is moved in the tension applying step and the adjusting step, the displacement due to the bending of the driving roller 21 can be detected with high accuracy in the detecting step.
  • the conveyance device 2 that is provided in the ink jet recording apparatus 1 and conveys the recording medium by the endless conveyance belt 23 stretched around the driving roller 21 and the driven roller 22 is the driven roller 22.
  • a laser that detects the amount of displacement due to the bending of the stretched portion of the conveyor belt 23 of the drive roller 21 with reference to before the tension is applied to the conveyor belt 23.
  • the driven roller 22 is moved by the sensors 24a to 24c and the adjusting unit 25 to apply tension to the conveyor belt 23, and the tension of the driving roller 21 before the tension is applied to the conveyor belt 23 by the laser sensors 24a to 24c.
  • a displacement amount due to any deflection of the stretched portion of the conveyor belt 23 is detected, and the adjustment unit 25 performs detection based on the displacement amount.
  • the adjusting unit 25 moves both axial ends of the driven roller 22, the tension of the conveying belt 23 can be adjusted uniformly in the width direction.
  • the driving roller 21 is fixed and the adjusting unit 25 moves the driven roller 22, the displacement amount due to the bending of the driving roller 21 can be detected with higher accuracy by the laser sensors 24a to 24c.
  • the description in the embodiment of the present invention is an example of the transport apparatus and the ink jet recording apparatus according to the present invention, and the present invention is not limited to this.
  • the detailed configuration and detailed operation of each functional unit constituting the transport device and the ink jet recording apparatus can be appropriately changed.
  • the transport device and the ink jet recording apparatus of the present invention are used not only for performing a printing operation on a recording medium but also for other uses such as forming a wiring pattern by discharging a wiring material to a substrate. It is also possible to use it.
  • the first roller is the driving roller 21 and the second roller is the driven roller 22.
  • the first roller is the driven roller 22
  • the second roller is the driving roller 21. It is good as it is.
  • the laser sensors 24a to 24c are used as the deflection detection sensors.
  • any amount of displacement due to the deflection of the roller that is generated when tension is applied to the conveyance belt 23 can be detected.
  • Any sensor may be used.
  • a non-contact sensor such as an ultrasonic sensor or a capacitance sensor may be used, or a contact sensor such as a pick tester or a dial gauge may be used.
  • the laser sensors 24 a to 24 c are arranged to face the driving roller 21, but may be arranged to face the driven roller 22.
  • the laser sensors 24a to 24c are configured to follow the driven roller 22 that moves in the Y-axis direction by the adjusting unit 25.
  • the laser sensors 24a to 24c are provided to be opposed to the axial center and both ends of the driving roller 21, but only the laser sensor 24a may be provided. In addition, two or four or more laser sensors including the laser sensor 24a may be provided.
  • the laser sensors 24a to 24c are fixed to the support base 241, but may be configured to be able to scan in the X-axis direction. In this case, it becomes possible to detect the amount of displacement due to the deflection in the entire axial direction in the stretched portion of the transport belt 23 of the driving roller 21, and by adjusting the tension of the transport belt 23 based on this, the transport belt 23 can be adjusted with higher accuracy.
  • the driven roller 22 is moved to adjust the tension of the conveyor belt 23.
  • both the driving roller 21 and the driven roller 22 are moved to adjust the tension of the conveyor belt 23. It is also good.
  • the meandering adjustment unit 26 is driven under the control of the control unit 9.
  • the user manually moves the housing 263 to adjust the moving direction of the conveyance belt 23, thereby conveying the conveyance belt. 23 may be prevented from meandering.
  • the transport device 2 does not include a tension roller.
  • a configuration including a tension roller may be used. In this case, the tension of the conveyor belt 23 can be adjusted with higher accuracy.
  • the present invention can be used for a tension adjustment method for a conveyor belt, a conveyor apparatus, and an inkjet recording apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Ink Jet (AREA)
  • Handling Of Sheets (AREA)

Abstract

L'invention concerne un procédé de réglage de tension de bande transporteuse capable de régler précisément la tension de la bande transporteuse. Un procédé de réglage de tension de bande transporteuse, visant à régler la tension d'une bande transporteuse (23) dans un dispositif (2) de transport installé sur un dispositif (1) d'impression à jet d'encre pour transporter un support d'impression au moyen de la bande transporteuse (23) sans fin étirée sur un rouleau menant (21) et un rouleau mené (22), est caractérisé en ce qu'il comporte une étape d'application de tension consistant à appliquer une tension à la bande transporteuse (23) en déplaçant au moins un des rouleaux menant (21) et mené (22), une étape de détection consistant à détecter, à l'aide d'un capteur (24a-24c) à laser, un décalage dû à une flèche d'une quelconque partie étirée de la bande transporteuse (23) du rouleau menant (21) comparé à l'état avant que la tension ne soit appliquée à la bande transporteuse (23), et une étape de réglage consistant à régler la tension de la bande transporteuse (23) en déplaçant au moins un des rouleaux menant (21) et mené (22) en fonction du décalage.
PCT/JP2015/084288 2014-12-25 2015-12-07 Procédé de réglage de tension de bande transporteuse, dispositif de transport, et dispositif d'impression à jet d'encre WO2016104125A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016566090A JP6562000B2 (ja) 2014-12-25 2015-12-07 搬送ベルトの張力調整方法、搬送装置及びインクジェット記録装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014261512 2014-12-25
JP2014-261512 2014-12-25

Publications (1)

Publication Number Publication Date
WO2016104125A1 true WO2016104125A1 (fr) 2016-06-30

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WO (1) WO2016104125A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018024492A (ja) * 2016-08-08 2018-02-15 株式会社ミマキエンジニアリング 印刷装置のメディア搬送機構及び搬送ベルトの装着方法
US20210060841A1 (en) * 2019-08-30 2021-03-04 Fanuc Corporation Injection molding machine
CN115535543A (zh) * 2022-08-16 2022-12-30 日照东方电机有限公司 一种永磁电机变频皮带输送涨紧控制方法及系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0252815U (fr) * 1988-10-12 1990-04-17
JPH04121312A (ja) * 1990-09-07 1992-04-22 Hoxan Corp コンベアベルトの同期緊張装置
JPH109368A (ja) * 1996-06-19 1998-01-13 Mitsuboshi Belting Ltd ベルト荷重測定用プーリ
JP2001032909A (ja) * 1999-07-16 2001-02-06 Nec Niigata Ltd ベルト駆動装置
JP2001163478A (ja) * 1999-12-08 2001-06-19 Toshiba Corp 搬送ベルトの張力調整装置及びこの張力調整装置を備える紙葉類の区分装置と、搬送ベルトの張力調整方法及びこの張力調整方法を有する紙葉類の区分方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0252815U (fr) * 1988-10-12 1990-04-17
JPH04121312A (ja) * 1990-09-07 1992-04-22 Hoxan Corp コンベアベルトの同期緊張装置
JPH109368A (ja) * 1996-06-19 1998-01-13 Mitsuboshi Belting Ltd ベルト荷重測定用プーリ
JP2001032909A (ja) * 1999-07-16 2001-02-06 Nec Niigata Ltd ベルト駆動装置
JP2001163478A (ja) * 1999-12-08 2001-06-19 Toshiba Corp 搬送ベルトの張力調整装置及びこの張力調整装置を備える紙葉類の区分装置と、搬送ベルトの張力調整方法及びこの張力調整方法を有する紙葉類の区分方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018024492A (ja) * 2016-08-08 2018-02-15 株式会社ミマキエンジニアリング 印刷装置のメディア搬送機構及び搬送ベルトの装着方法
US20210060841A1 (en) * 2019-08-30 2021-03-04 Fanuc Corporation Injection molding machine
US11840004B2 (en) * 2019-08-30 2023-12-12 Fanuc Corporation Injection molding machine
CN115535543A (zh) * 2022-08-16 2022-12-30 日照东方电机有限公司 一种永磁电机变频皮带输送涨紧控制方法及系统
CN115535543B (zh) * 2022-08-16 2024-05-10 日照东方电机有限公司 一种永磁电机变频皮带输送涨紧控制方法及系统

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