WO2016104125A1 - Transport belt tension adjusting method, transporting device, and inkjet printing device - Google Patents
Transport belt tension adjusting method, transporting device, and inkjet printing device Download PDFInfo
- 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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- WIPO (PCT)
- Prior art keywords
- roller
- tension
- conveyor belt
- adjusting
- belt
- Prior art date
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Classifications
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- 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
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- 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
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- 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
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- 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.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Ink Jet (AREA)
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Abstract
Provided is a transport belt tension adjusting method that can accurately adjust transport belt tension. A transport belt tension adjusting method to adjust tension of a transport belt (23) in a transporting device (2) provided on an inkjet printing device (1) to transport a printing medium by the endless transport belt (23) stretched to a driving roller (21) and a driven roller (22) is characterized by comprising a tension applying step of applying tension to the transport belt (23) by moving at least one of the driving roller (21) and the driven roller (22), a detecting step of detecting, with a laser sensor (24a-24c), displacement due to deflection of any stretched portion of the transport belt (23) of the driving roller (21) compared to before tension is applied to the transport belt (23), and an adjusting step of adjusting the transport belt (23) tension by moving at least one of the driving roller (21) and the driven roller (22) on the basis of the displacement.
Description
本発明は、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に関する。
The present invention relates to a tension adjustment method for a conveyor belt, a conveyor apparatus, and an inkjet recording apparatus.
従来、インクジェット記録装置には、駆動ローラー及び従動ローラーに張架された搬送ベルトを駆動ローラーにより回転駆動して記録媒体を搬送する搬送装置が設けられている。
Conventionally, 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.
上記搬送装置において、記録媒体を精度良く搬送させるためには、搬送ベルトに適正な範囲内の張力がかけられている必要がある。搬送ベルトの張力が当該範囲よりも小さいと、駆動ローラーの動力伝達効率が低下し、搬送ベルトの回転不良が生じる場合がある。一方、搬送ベルトの張力が当該範囲よりも大きいと、駆動ローラー及び従動ローラーが撓み過ぎることで記録媒体が精度良く搬送されず画質劣化が生じたり、駆動モーターを大型化する必要が生じたりする場合がある。更に、搬送ベルトの張力が大きい状態で長時間使用すると、搬送ベルトに永久歪みが発生して伸縮性が低下し、張力がかからなくなることで回転不良を生じる場合もある。
In the transport apparatus, in order to transport the recording medium with high accuracy, it is necessary that tension within an appropriate range is applied to the transport belt. When the tension of the conveyor belt is smaller than the above range, the power transmission efficiency of the drive roller is lowered, and the conveyor belt may be poorly rotated. On the other hand, if the tension of the conveyor belt is larger than the above range, the drive roller and the driven roller will bend too much and the recording medium will not be conveyed accurately, resulting in image quality degradation or the need to enlarge the drive motor. There is. Furthermore, if the conveyor belt is used for a long time with a high tension, permanent distortion may occur in the conveyor belt, the elasticity may be reduced, and the tension may not be applied, resulting in a rotation failure.
このため、上記搬送装置において搬送ベルトの張力を適正な範囲内に調整すべく、例えば、ローラー間距離を調整すること等により搬送ベルトの張力を調整する方法がある。
そのような方法として、例えば、テンションをかけていない状態の搬送ベルトの所定領域の長さを手動で測定し、当該領域の長さが所定割合長くなるまでローラー間距離を調整することで、搬送ベルトの張力を調整する方法が挙げられる。しかしながら、当該調整方法にあっては、搬送ベルトの厚さや剛性、温度、材質等の各種要因により必ずしも適切な張力に調整することはできない。しかも、当該方法は搬送ベルトの所定領域の長さを手動で測定して行うため、操作が煩雑で、測定誤差も大きいという問題があった。 For this reason, in order to adjust the tension of the conveyor belt within an appropriate range in the conveyor, there is a method of adjusting the tension of the conveyor belt, for example, by adjusting the distance between rollers.
As such a method, for example, by manually measuring the length of a predetermined area of the conveyance belt in a state where no tension is applied, and adjusting the distance between the rollers until the length of the area becomes a predetermined ratio longer, A method for adjusting the tension of the belt can be mentioned. However, in this adjustment method, it is not always possible to adjust to an appropriate tension due to various factors such as the thickness, rigidity, temperature, and material of the transport belt. In addition, since the method is performed by manually measuring the length of the predetermined area of the conveyor belt, there are problems that the operation is complicated and the measurement error is large.
そのような方法として、例えば、テンションをかけていない状態の搬送ベルトの所定領域の長さを手動で測定し、当該領域の長さが所定割合長くなるまでローラー間距離を調整することで、搬送ベルトの張力を調整する方法が挙げられる。しかしながら、当該調整方法にあっては、搬送ベルトの厚さや剛性、温度、材質等の各種要因により必ずしも適切な張力に調整することはできない。しかも、当該方法は搬送ベルトの所定領域の長さを手動で測定して行うため、操作が煩雑で、測定誤差も大きいという問題があった。 For this reason, in order to adjust the tension of the conveyor belt within an appropriate range in the conveyor, there is a method of adjusting the tension of the conveyor belt, for example, by adjusting the distance between rollers.
As such a method, for example, by manually measuring the length of a predetermined area of the conveyance belt in a state where no tension is applied, and adjusting the distance between the rollers until the length of the area becomes a predetermined ratio longer, A method for adjusting the tension of the belt can be mentioned. However, in this adjustment method, it is not always possible to adjust to an appropriate tension due to various factors such as the thickness, rigidity, temperature, and material of the transport belt. In addition, since the method is performed by manually measuring the length of the predetermined area of the conveyor belt, there are problems that the operation is complicated and the measurement error is large.
また、ローラー間距離を調整して搬送ベルトの張力を調整する他の方法として、例えば、ローラーに貼付されたひずみゲージによりローラーの歪みを測定し、当該測定値に応じてステッピングモーターによりローラーを移動させてローラー間距離を調整し、搬送ベルトの張力を調整する方法が提案されている(例えば、特許文献1参照)。
As another method for adjusting the tension of the conveyor belt by adjusting the distance between the rollers, for example, 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).
しかしながら上記調整方法にあっては、ひずみゲージが、搬送ベルトと接触するローラー周面部分ではなく、当該ローラーの搬送ベルトが張架されている部分の外側に位置するローラー軸部分に設けられているため、ローラーの歪みを精度良く測定することができず、搬送ベルトの張力を精度良く調整することができない。
However, in the above adjustment method, 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.
そこで、本発明の課題は、搬送ベルトの張力を精度良く調整できる搬送ベルトの張力調整方法、搬送ベルトの張力を精度良く調整できる搬送装置、及びそれを備えたインクジェット記録装置を提供することである。
SUMMARY OF THE INVENTION 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. .
以上の課題を解決するため、請求項1に記載の発明は、搬送ベルトの張力調整方法において、
インクジェット記録装置に設けられ、第1ローラー及び第2ローラーに張架された無端状の搬送ベルトにより記録媒体を搬送する搬送装置において、前記搬送ベルトの張力を調整する搬送ベルトの張力調整方法であって、
前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトに張力を付与する張力付与工程と、
撓み検出センサーにより、前記搬送ベルトに張力を付与する前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出する検出工程と、
前記変位量に基づいて、前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する調整工程と、
を有することを特徴とする。 In order to solve the above problems, 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. And
A tension applying step of applying tension to the conveyor belt by moving at least one of the first roller and the second roller;
A detection step of detecting, by a deflection detection sensor, a displacement amount due to any deflection of the conveyor belt stretched portion of the first roller with reference to before the tension is applied to the conveyor belt;
An adjustment step of adjusting the tension of the conveyor belt by moving at least one of the first roller and the second roller based on the displacement amount;
It is characterized by having.
インクジェット記録装置に設けられ、第1ローラー及び第2ローラーに張架された無端状の搬送ベルトにより記録媒体を搬送する搬送装置において、前記搬送ベルトの張力を調整する搬送ベルトの張力調整方法であって、
前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトに張力を付与する張力付与工程と、
撓み検出センサーにより、前記搬送ベルトに張力を付与する前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出する検出工程と、
前記変位量に基づいて、前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する調整工程と、
を有することを特徴とする。 In order to solve the above problems, 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. And
A tension applying step of applying tension to the conveyor belt by moving at least one of the first roller and the second roller;
A detection step of detecting, by a deflection detection sensor, a displacement amount due to any deflection of the conveyor belt stretched portion of the first roller with reference to before the tension is applied to the conveyor belt;
An adjustment step of adjusting the tension of the conveyor belt by moving at least one of the first roller and the second roller based on the displacement amount;
It is characterized by having.
請求項2に記載の発明は、請求項1に記載の搬送ベルトの張力調整方法において、
前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向中央部の撓みによる変位量を検出することを特徴とする。 The invention according toclaim 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.
前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向中央部の撓みによる変位量を検出することを特徴とする。 The invention according to
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.
請求項3に記載の発明は、請求項1又は2に記載の搬送ベルトの張力調整方法において、
前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向中央部及び軸方向両端部の撓みによる変位量を検出することを特徴とする。 The invention according toclaim 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.
前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向中央部及び軸方向両端部の撓みによる変位量を検出することを特徴とする。 The invention according to
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.
請求項4に記載の発明は、請求項1から3のいずれか一項に記載の搬送ベルトの張力調整方法において、
前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向全体の撓みによる変位量を検出することを特徴とする。 Invention ofClaim 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.
前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向全体の撓みによる変位量を検出することを特徴とする。 Invention of
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.
請求項5に記載の発明は、請求項1から4のいずれか一項に記載の搬送ベルトの張力調整方法において、
前記張力付与工程及び前記調整工程において、前記第1ローラーを固定し、前記第2ローラーを移動させることを特徴とする。 The invention according toclaim 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.
前記張力付与工程及び前記調整工程において、前記第1ローラーを固定し、前記第2ローラーを移動させることを特徴とする。 The invention according to
In the tension applying step and the adjusting step, the first roller is fixed and the second roller is moved.
請求項6に記載の発明は、搬送装置において、
インクジェット記録装置に設けられ、第1ローラー及び第2ローラーに張架された無端状の搬送ベルトにより記録媒体を搬送する搬送装置であって、
前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する調整部と、
前記搬送ベルトに張力が付与される前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出する撓み検出センサーと、
前記調整部により前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトに張力を付与し、前記撓み検出センサーにより前記搬送ベルトに張力が付与される前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出し、前記変位量に基づいて前記調整部により前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する制御部と、
を備えることを特徴とする。 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.
インクジェット記録装置に設けられ、第1ローラー及び第2ローラーに張架された無端状の搬送ベルトにより記録媒体を搬送する搬送装置であって、
前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する調整部と、
前記搬送ベルトに張力が付与される前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出する撓み検出センサーと、
前記調整部により前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトに張力を付与し、前記撓み検出センサーにより前記搬送ベルトに張力が付与される前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出し、前記変位量に基づいて前記調整部により前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する制御部と、
を備えることを特徴とする。 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.
請求項7に記載の発明は、請求項6に記載の搬送装置において、
前記調整部は、前記第1ローラー及び前記第2ローラーの少なくとも一方の軸方向両端部をそれぞれ移動させることを特徴とする。 The invention according toclaim 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.
前記調整部は、前記第1ローラー及び前記第2ローラーの少なくとも一方の軸方向両端部をそれぞれ移動させることを特徴とする。 The invention according to
The adjusting unit moves at least one axial end portion of each of the first roller and the second roller.
請求項8に記載の発明は、請求項6又は7に記載の搬送装置であって、
前記第1ローラーは固定され、
前記調整部は、前記第2ローラーを移動させることを特徴とする。 Invention of Claim 8 is a conveying apparatus ofClaim 6 or 7, Comprising:
The first roller is fixed;
The adjusting unit moves the second roller.
前記第1ローラーは固定され、
前記調整部は、前記第2ローラーを移動させることを特徴とする。 Invention of Claim 8 is a conveying apparatus of
The first roller is fixed;
The adjusting unit moves the second roller.
請求項9に記載の発明は、インクジェット記録装置において、
請求項6から8のいずれか一項に記載の搬送装置と、
前記搬送装置により搬送される記録媒体に対してインクを吐出するインクジェットヘッドと、
を備えることを特徴とする。 The invention according toclaim 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.
請求項6から8のいずれか一項に記載の搬送装置と、
前記搬送装置により搬送される記録媒体に対してインクを吐出するインクジェットヘッドと、
を備えることを特徴とする。 The invention according to
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.
本発明によれば、搬送ベルトの張力を精度良く調整できる搬送ベルトの張力調整方法、搬送ベルトの張力を精度良く調整できる搬送装置、及びそれを備えたインクジェット記録装置を提供することができる。
According to the present invention, it is possible 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.
以下、本発明の実施の形態に係る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について、図面を用いて詳細に説明する。ただし、発明の範囲は図示例に限定されない。なお、以下の説明において、同一の機能及び構成を有するものについては、同一の符号を付し、その説明を省略する。
Hereinafter, a tension adjusting method, a conveying apparatus, and an inkjet recording apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples. In addition, in the following description, what has the same function and structure attaches | subjects the same code | symbol, and abbreviate | omits the description.
図1は、本発明のインクジェット記録装置1の一例を示す斜視図である。
インクジェット記録装置1は、図1に示すように、例えば、記録媒体を水平方向に沿って搬送する搬送装置2と、搬送される記録媒体に上方からインクを吐出する複数のヘッド3(図7参照)を搭載するキャリッジ4と、キャリッジ4を記録媒体の搬送方向に直交する水平方向に沿って搬送する主走査装置5と、キャリッジ4に搭載された各ヘッド3へのインク供給を行うインク供給系(図示略)と、装置全体を支持するフレーム100とを主として備えている。
なお、以下の説明では、水平方向であって記録媒体の搬送方向に沿った方向をY軸方向、水平方向であってキャリッジ4の搬送方向に沿った方向をX軸方向又は主走査方向、鉛直方向をZ軸方向ということがある。 FIG. 1 is a perspective view showing an example of an ink jet recording apparatus 1 of the present invention.
As shown in FIG. 1, the inkjet recording apparatus 1 includes, for example, atransport 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.
In the following description, 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 thecarriage 4 are the X-axis direction or the main scanning direction, and the vertical direction. The direction is sometimes referred to as the Z-axis direction.
インクジェット記録装置1は、図1に示すように、例えば、記録媒体を水平方向に沿って搬送する搬送装置2と、搬送される記録媒体に上方からインクを吐出する複数のヘッド3(図7参照)を搭載するキャリッジ4と、キャリッジ4を記録媒体の搬送方向に直交する水平方向に沿って搬送する主走査装置5と、キャリッジ4に搭載された各ヘッド3へのインク供給を行うインク供給系(図示略)と、装置全体を支持するフレーム100とを主として備えている。
なお、以下の説明では、水平方向であって記録媒体の搬送方向に沿った方向をY軸方向、水平方向であってキャリッジ4の搬送方向に沿った方向をX軸方向又は主走査方向、鉛直方向をZ軸方向ということがある。 FIG. 1 is a perspective view showing an example of an ink jet recording apparatus 1 of the present invention.
As shown in FIG. 1, the inkjet recording apparatus 1 includes, for example, a
In the following description, 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
[搬送装置]
本発明の搬送装置2について、図1~図4を参照して以下に説明する。
図2は、搬送装置2の斜視図、図3は、搬送装置2の概略平面図、図4A及び図4Bは、それぞれ搬送装置2が備える蛇行調整部26の一端部及び他端部を示す斜視図である。 [Conveyor]
Thetransport apparatus 2 of the present invention will be described below with reference to FIGS.
2 is a perspective view of thetransfer device 2, FIG. 3 is a schematic plan view of the transfer device 2, and 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.
本発明の搬送装置2について、図1~図4を参照して以下に説明する。
図2は、搬送装置2の斜視図、図3は、搬送装置2の概略平面図、図4A及び図4Bは、それぞれ搬送装置2が備える蛇行調整部26の一端部及び他端部を示す斜視図である。 [Conveyor]
The
2 is a perspective view of the
搬送装置2は、回転駆動するための駆動モーター211を有する駆動ローラー21、当該駆動ローラー21に従動する従動ローラー22、駆動ローラー21及び従動ローラー22に張架される無端状の搬送ベルト23、搬送ベルト23に張力が付与される前を基準とした駆動ローラー21の搬送ベルト23張架部分の撓みによる変位量を検出するレーザーセンサー(撓み検出センサー)24a~24c、従動ローラー22を移動させて搬送ベルト23の張力を調整する調整部25、搬送ベルト23の蛇行を防止する蛇行調整部26、各部を所定位置で支持する筐体27、及び、各部を制御する制御部9(図5参照)等を備えて構成されている。なお、搬送ベルト張架部分とは、駆動ローラー21の軸方向のうち搬送ベルト23が張架されている部分である。
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. An adjusting unit 25 for adjusting the tension of the belt 23, a meandering adjusting unit 26 for preventing the meandering of the conveyor belt 23, a casing 27 for supporting each unit at a predetermined position, a control unit 9 for controlling each unit (see FIG. 5), etc. It is configured with. The conveyor belt stretched portion is a portion where the conveyor belt 23 is stretched in the axial direction of the drive roller 21.
駆動ローラー21は、回転自在に軸支されており、X軸方向に延在するように配置されている。駆動モーター211は、駆動ローラー21を回転駆動するための駆動源であり、駆動ローラー21の一端側に取り付けられている。
駆動モーター211は、ヘッド3がX軸方向に沿った片道1回分の走査が終了すると、駆動ローラー21を所定量だけ回転させて記録媒体を搬送方向Fに所定距離だけ搬送させて停止させ、ヘッド3が主走査方向Xの反対方向への走査を開始して終了すると、駆動ローラー21を再度所定量だけ回転させて記録媒体を搬送方向Fに所定距離だけ搬送させて停止させることを繰り返し、記録媒体をいわゆる間欠搬送する。
なお、記録媒体としては、紙や布帛のほか、樹脂フィルムや金属類等を用いることが可能である。 Thedrive 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.
When thehead 3 completes one-way scanning along the X-axis direction, 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.
駆動モーター211は、ヘッド3がX軸方向に沿った片道1回分の走査が終了すると、駆動ローラー21を所定量だけ回転させて記録媒体を搬送方向Fに所定距離だけ搬送させて停止させ、ヘッド3が主走査方向Xの反対方向への走査を開始して終了すると、駆動ローラー21を再度所定量だけ回転させて記録媒体を搬送方向Fに所定距離だけ搬送させて停止させることを繰り返し、記録媒体をいわゆる間欠搬送する。
なお、記録媒体としては、紙や布帛のほか、樹脂フィルムや金属類等を用いることが可能である。 The
When the
As the recording medium, it is possible to use resin films, metals, etc. in addition to paper and fabric.
従動ローラー22は、回転自在に軸支されており、X軸方向に延在するように配置されて、駆動ローラー21に対して平行に配置されている。従動ローラー22は、駆動ローラー21と同一の材質及びサイズで構成されており、駆動源を備えていない。また、従動ローラー22は、調整部25によりY軸方向に移動可能となっており、駆動ローラー21に対して位置調整が可能となっている。
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.
搬送ベルト23は、無端状に形成され、駆動ローラー21と従動ローラー22との間に架け渡されている。搬送ベルト23は、駆動ローラー21が回転すると駆動ローラー21と従動ローラー22との間を周回してその上面に載置された記録媒体をY軸方向に沿った搬送方向Fに向かって搬送し、駆動ローラー21の回転が停止すると、両ローラー間での周回を停止し、記録媒体の搬送を停止する。
The conveyor belt 23 is formed in an endless shape and is stretched between the driving roller 21 and the driven roller 22. When the driving roller 21 rotates, 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. When 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.
レーザーセンサー24a~24cは、図2及び図3に示すように、支持台241にそれぞれ支持されて、搬送ベルト23の内側に配置されるように固定されている。レーザーセンサー24a~24cは、搬送ベルト23の内側において駆動ローラー21の周面に非接触で対向配置されており、レーザーセンサー24aは駆動ローラー21の軸方向中央部、レーザーセンサー24bは駆動ローラー21の駆動モーター211側の端部、レーザーセンサー24cは駆動ローラー21の駆動モーター211と反対側の端部に、それぞれ対向配置されている。このように、レーザーセンサー24a~24cは駆動ローラー21に対して非接触で設けられているため、駆動ローラー21の回転駆動を阻害したり周面を傷付けたりすることを防止できる。
As shown in FIGS. 2 and 3, 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. As described above, since 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.
このように配置されたレーザーセンサー24a~24cは、駆動ローラー21との間の距離を検出することで、搬送ベルト23に張力が付与される前を基準とした駆動ローラー21の撓みによる変位量を検出する。具体的には、搬送ベルト23に張力が付与されると、駆動ローラー21及び従動ローラー22に負荷がかかり、駆動ローラー21及び従動ローラー22の軸方向中央部が互いに近付くように駆動ローラー21及び従動ローラー22がそれぞれ僅かに撓む。このため、張力が付与される前と比較して、駆動ローラー21と各レーザーセンサー24a~24cとの間の距離には差異が生じる。よって、レーザーセンサー24a~24cは、搬送ベルト23に張力が付与される前に駆動ローラー21との間の距離を検出するとともに、搬送ベルト23に張力が付与された後又は張力が調整された後に駆動ローラー21との間の距離を検出することで、張力付与前を基準とした駆動ローラー21の撓みによる変位量を検出することができる。搬送ベルト23にかかる張力が大きくなるほど駆動ローラー21は撓み、その変位量は大きくなるため、当該変位量を検出して変位量に基づいて駆動ローラー21と従動ローラー22との距離を調整することで、搬送ベルト23の張力を調整することが可能となる。
また、搬送ベルト23に張力がかかると駆動ローラー21及び従動ローラー22は軸方向中央部が最も大きく撓むため、レーザーセンサー24aにより検出される駆動ローラー21の軸方向中央部の変位量に基づいて張力調整を行うことで、搬送ベルト23の張力を精度良く調整することができる。 Thelaser 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. Therefore, 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. By detecting 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. As the tension applied to the conveyor belt 23 increases, 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.
Further, when tension is applied to theconveyor belt 23, 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. By adjusting the tension, the tension of the conveyor belt 23 can be adjusted with high accuracy.
また、搬送ベルト23に張力がかかると駆動ローラー21及び従動ローラー22は軸方向中央部が最も大きく撓むため、レーザーセンサー24aにより検出される駆動ローラー21の軸方向中央部の変位量に基づいて張力調整を行うことで、搬送ベルト23の張力を精度良く調整することができる。 The
Further, when tension is applied to the
また、レーザーセンサー24b、24cがそれぞれ駆動ローラー21の軸方向両端部において駆動ローラー21の変位量を検出することで、駆動ローラー21の軸方向両端部で変位量に差が生じている場合にはこれを検出することができる。駆動ローラー21の軸方向両端部で変位量に差が生じている場合には搬送ベルト23にかかる張力にも幅方向両側で差が生じているため、駆動ローラー21の軸方向両端部の変位量に基づいて張力調整を行うことで、搬送ベルト23の張力を幅方向(X軸方向)で均一に調整することができる。
In addition, when 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. When 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. By adjusting the tension based on the above, the tension of the conveyor belt 23 can be adjusted uniformly in the width direction (X-axis direction).
調整部25は、従動ローラー22の近傍に設けられ、従動ローラー22をY軸方向に移動させることで駆動ローラー21に対して相対移動させる。
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.
具体的には、調整部25は、従動ローラー22を回転自在に軸支するハウジング251、ハウジング251をY軸方向にスライド移動可能に支持するレール252、一端部がハウジング251に取り付けられ、回転されることでY軸方向に移動する調整ネジ253等を有して構成されている。
調整ネジ253は回転することでY軸方向に移動可能な状態で筐体27に支持されており、調整ネジ253の先端部がハウジング251に対して取り付けられている。調整ネジ253が回転されることで、調整ネジ253の先端部の位置がY軸方向において駆動ローラー21から離れる方向に移動する。これにより、ハウジング251が調整ネジ253の先端部に押圧されて、Y軸方向において駆動ローラー21から離れる方向に移動する。また、調整ネジ253が逆回転されると、調整ネジ253の先端部の位置がY軸方向において駆動ローラー21に近付く方向に移動する。これにより、ハウジング251が調整ネジ253に引っ張られて、Y軸方向において駆動ローラー21に近付く方向に移動する。
ハウジング251には従動ローラー22が取り付けられているため、ハウジング251の移動に伴って従動ローラー22が移動し、駆動ローラー21と従動ローラー22との間の距離を調整することができる。これにより、駆動ローラー21及び従動ローラー22に張架された搬送ベルト23に張力を付与することができるとともに、その張力を調整することができる。 Specifically, theadjustment 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. Thus, an adjustment screw 253 that moves in the Y-axis direction is provided.
Theadjustment 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. 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. As a result, 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. When 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. As a result, 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.
Since the drivenroller 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.
調整ネジ253は回転することでY軸方向に移動可能な状態で筐体27に支持されており、調整ネジ253の先端部がハウジング251に対して取り付けられている。調整ネジ253が回転されることで、調整ネジ253の先端部の位置がY軸方向において駆動ローラー21から離れる方向に移動する。これにより、ハウジング251が調整ネジ253の先端部に押圧されて、Y軸方向において駆動ローラー21から離れる方向に移動する。また、調整ネジ253が逆回転されると、調整ネジ253の先端部の位置がY軸方向において駆動ローラー21に近付く方向に移動する。これにより、ハウジング251が調整ネジ253に引っ張られて、Y軸方向において駆動ローラー21に近付く方向に移動する。
ハウジング251には従動ローラー22が取り付けられているため、ハウジング251の移動に伴って従動ローラー22が移動し、駆動ローラー21と従動ローラー22との間の距離を調整することができる。これにより、駆動ローラー21及び従動ローラー22に張架された搬送ベルト23に張力を付与することができるとともに、その張力を調整することができる。 Specifically, the
The
Since the driven
また、調整部25を構成するハウジング251、レール252及び調整ネジ253は、従動ローラー22の軸方向両端部近傍にそれぞれ設けられており、調整部25は、従動ローラー22の軸方向両端部をそれぞれ移動させることができる。このため、駆動ローラー21と従動ローラー22の軸方向一端部との間の距離、及び、駆動ローラー21と従動ローラー22の軸方向他端部との間の距離をそれぞれ別々に調整することができ、搬送ベルト23にかかる張力を幅方向両側で均一に調整することができる。
Further, 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.
蛇行調整部26は、駆動ローラー21と従動ローラー22との間に設けられて、制御部9の制御下で駆動して搬送ベルト23の移動方向を調整する。
具体的には、蛇行調整部26は、回転自在に軸支されX軸方向に延在するように配置されたローラー261、ローラー261の軸方向の一端部261aを筐体27に対して取り付ける取付部262、ローラー261の軸方向の他端部261bを支持するハウジング263、ハウジング263をY軸方向にスライド移動可能に支持するレール264等を有して構成されている。ローラー261は、搬送ベルト23の内側に設けられて搬送ベルト23の内周面に当接して配置されている。ハウジング263がレール264上をY軸方向のいずれか一方に移動することで、ローラー261の一端部261aを支点としてローラー261の他端部261bがY軸方向のいずれか一方に移動する。これにより、ローラー261がX軸方向に対して斜めに配置され、駆動ローラー21により回転移動される搬送ベルト23の移動方向を調整して、搬送ベルト23の蛇行を防止することができる。
なお、ローラー261は、搬送ベルト23の内周面に当接しているが、搬送ベルト23の張力には影響を与えない。 The meanderingadjustment 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 meanderingadjustment 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. 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. As a result, 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.
Theroller 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.
具体的には、蛇行調整部26は、回転自在に軸支されX軸方向に延在するように配置されたローラー261、ローラー261の軸方向の一端部261aを筐体27に対して取り付ける取付部262、ローラー261の軸方向の他端部261bを支持するハウジング263、ハウジング263をY軸方向にスライド移動可能に支持するレール264等を有して構成されている。ローラー261は、搬送ベルト23の内側に設けられて搬送ベルト23の内周面に当接して配置されている。ハウジング263がレール264上をY軸方向のいずれか一方に移動することで、ローラー261の一端部261aを支点としてローラー261の他端部261bがY軸方向のいずれか一方に移動する。これにより、ローラー261がX軸方向に対して斜めに配置され、駆動ローラー21により回転移動される搬送ベルト23の移動方向を調整して、搬送ベルト23の蛇行を防止することができる。
なお、ローラー261は、搬送ベルト23の内周面に当接しているが、搬送ベルト23の張力には影響を与えない。 The meandering
Specifically, the meandering
The
図5は、インクジェット記録装置1の制御系を示すブロック図である。図5に記載の制御部9はインクジェット記録装置1全体の制御を行うが、ここでは搬送装置2の構成のみを図示し、他の構成については図示を省略するものとする。
制御部9は、図5に示すように、上記搬送装置2を構成する各部と接続されており、搬送装置2を構成する各部を制御する。制御部9は、CPU91、RAM92及びROM93等を有する。CPU91は、ROM93等の記憶装置から処理内容に応じた各種のプログラムやデータ等を読み出して実行し、実行された処理内容に応じて搬送装置2の各部の動作を制御する。RAM92は、CPU91により処理される各種のプログラムやデータ等を一時的に記憶する。ROM93は、CPU91等により読み出される各種のプログラムやデータ等を記憶する。
具体的には、制御部9は、調整部25により従動ローラー22を移動させて搬送ベルト23に張力を付与し、レーザーセンサー24a~24cにより搬送ベルト23に張力が付与される前を基準とした駆動ローラー21の軸方向中央部及び両端部の撓みによる変位量を検出し、当該変位量に基づいて調整部25により従動ローラー22を移動させて搬送ベルト23の張力を調整する。搬送ベルト23に張力をかけている時の駆動ローラー21と従動ローラー22との軸間距離をw1とし、搬送ベルト23に張力をかけていない時の駆動ローラー21と従動ローラー22との軸間距離をw2としたとき、(w1-w2)/w2×100で求められる張力を0.2~2.0%とすることが好ましい。 FIG. 5 is a block diagram showing a control system of the inkjet recording apparatus 1. Thecontrol 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.
As shown in FIG. 5, thecontrol 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.
Specifically, thecontrol 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. When w2 is w2, it is preferable that the tension obtained by (w1−w2) / w2 × 100 is 0.2 to 2.0%.
制御部9は、図5に示すように、上記搬送装置2を構成する各部と接続されており、搬送装置2を構成する各部を制御する。制御部9は、CPU91、RAM92及びROM93等を有する。CPU91は、ROM93等の記憶装置から処理内容に応じた各種のプログラムやデータ等を読み出して実行し、実行された処理内容に応じて搬送装置2の各部の動作を制御する。RAM92は、CPU91により処理される各種のプログラムやデータ等を一時的に記憶する。ROM93は、CPU91等により読み出される各種のプログラムやデータ等を記憶する。
具体的には、制御部9は、調整部25により従動ローラー22を移動させて搬送ベルト23に張力を付与し、レーザーセンサー24a~24cにより搬送ベルト23に張力が付与される前を基準とした駆動ローラー21の軸方向中央部及び両端部の撓みによる変位量を検出し、当該変位量に基づいて調整部25により従動ローラー22を移動させて搬送ベルト23の張力を調整する。搬送ベルト23に張力をかけている時の駆動ローラー21と従動ローラー22との軸間距離をw1とし、搬送ベルト23に張力をかけていない時の駆動ローラー21と従動ローラー22との軸間距離をw2としたとき、(w1-w2)/w2×100で求められる張力を0.2~2.0%とすることが好ましい。 FIG. 5 is a block diagram showing a control system of the inkjet recording apparatus 1. The
As shown in FIG. 5, the
Specifically, the
上記のように構成された搬送装置2において、制御部9により行われる搬送ベルト23の張力調整処理の一例について、図6を参照して以下説明する。
図6は、搬送装置2の製造時や設置時、搬送ベルト23の交換時等において、駆動ローラー21及び従動ローラー22に架け渡された搬送ベルト23に張力を付与して調整する張力調整処理の一例を示すフローチャートである。 An example of the tension adjustment processing of theconveyor belt 23 performed by the controller 9 in the conveyor device 2 configured as described above will be described below with reference to FIG.
FIG. 6 illustrates a tension adjustment process in which tension is applied to theconveyor 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.
図6は、搬送装置2の製造時や設置時、搬送ベルト23の交換時等において、駆動ローラー21及び従動ローラー22に架け渡された搬送ベルト23に張力を付与して調整する張力調整処理の一例を示すフローチャートである。 An example of the tension adjustment processing of the
FIG. 6 illustrates a tension adjustment process in which tension is applied to the
まず、制御部9は、レーザーセンサー24a~24cにより駆動ローラー21との距離を検出する(ステップS101)。このとき、搬送ベルト23は駆動ローラー21と従動ローラー22とに架け渡されているが、当該搬送ベルト23には張力が付与されていない。
First, 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.
次に、制御部9は、調整部25により従動ローラー22を駆動ローラー21から離れる方向に移動させ、搬送ベルト23に張力を付与する(ステップS102)。
Next, the 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).
次に、制御部9は、レーザーセンサー24a~24cにより駆動ローラー21との距離を検出することで、搬送ベルト23に張力を付与する前を基準とした駆動ローラー21の軸方向中央部及び両端部の撓みによる変位量を検出する(ステップS103)。すなわち、レーザーセンサー24a~24cは、ステップS101で検出された距離とステップS103で検出された距離との差を駆動ローラー21の変位量として検出する。
Next, the 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.
次に、制御部9は、ステップS103で検出された変位量が目標値に達したか否かを判定する(ステップS104)。ここで、目標値とは、搬送される記録媒体上に画質劣化が生じず、且つ搬送ベルト23の回転不良を発生させない程度の最適な張力が搬送ベルト23に付与されたときの、駆動ローラー21の撓みによる変位量であって、予めシミューレーションや試験等によって求められた値である。
Next, the control unit 9 determines whether or not the displacement detected in step S103 has reached the target value (step S104). Here, 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.
検出された変位量が目標値に達していないと判定されると(ステップS104;NO)、制御部9は、調整部25により従動ローラー22の位置を調整し、搬送ベルト23にかかる張力を調整する(ステップS105)。制御部9は、従動ローラー22の駆動ローラー21との距離を調整した後、再びステップS103の処理を行う。
When it is determined that the detected displacement amount has not reached the target value (step S104; NO), 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.
検出された変位量が目標値に達したと判定されると(ステップS104;YES)、制御部9は、張力調整処理を終了する。
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.
[搬送ベルトの張力調整方法]
続いて、本発明の搬送ベルトの張力調整方法について説明する。以下の説明では、上記したように構成される搬送装置2を用いて行った場合について説明する。 [Tension adjustment method of conveyor belt]
Next, the tension adjustment method for the conveyor belt of the present invention will be described. In the following description, a case where thetransfer apparatus 2 configured as described above is used will be described.
続いて、本発明の搬送ベルトの張力調整方法について説明する。以下の説明では、上記したように構成される搬送装置2を用いて行った場合について説明する。 [Tension adjustment method of conveyor belt]
Next, the tension adjustment method for the conveyor belt of the present invention will be described. In the following description, a case where the
本発明の張力調整方法においては、まず、従動ローラー22をY軸方向において駆動ローラー21から離れる方向に移動させて搬送ベルト23に張力を付与する(張力付与工程)。張力付与工程を行う前においては、搬送ベルト23は駆動ローラー21及び従動ローラー22に架け渡されているが、当該搬送ベルト23は緩んだ状態であり張力は付与されていない。
In the tension adjustment method of the present invention, first, 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). Before the 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.
次に、レーザーセンサー24a~24cにより、搬送ベルト23に張力を付与する前を基準とした駆動ローラー21の軸方向中央部及び軸方向両端部の撓みによる変位量を検出する(検出工程)。具体的には、搬送ベルト23に張力を付与する前に予めレーザーセンサー24a~24cにより駆動ローラー21までの距離を検出しておき、更に、搬送ベルト23に張力を付与した後又は張力を調整した後にレーザーセンサー24a~24cにより駆動ローラー21までの距離を検出することで、その変位量を検出する。
なお、検出工程においては、駆動ローラー21の搬送ベルト23張架部分のち軸方向全体の撓みによる変位量を検出するものとしても良い。この場合には、例えば、X軸方向に走査可能に構成されたレーザーセンサーにより検出するものとしても良いし、X軸方向に沿って複数設けられたレーザーセンサーにより検出するものとしても良い。 Next, thelaser 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 theconveyor 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.
なお、検出工程においては、駆動ローラー21の搬送ベルト23張架部分のち軸方向全体の撓みによる変位量を検出するものとしても良い。この場合には、例えば、X軸方向に走査可能に構成されたレーザーセンサーにより検出するものとしても良いし、X軸方向に沿って複数設けられたレーザーセンサーにより検出するものとしても良い。 Next, the
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
次に、検出された変位量に基づいて従動ローラー22をY軸方向のいずれか一方に移動させて搬送ベルト23の張力を調整する(調整工程)。具体的には、レーザーセンサー24a~24cにより検出された変位量が、予め設定された目標値となるように、調整部25により従動ローラー22を移動させることで、搬送ベルト23の張力を調整する。
Next, 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. .
なお、上記した搬送ベルトの張力調整方法では、張力付与工程及び調整工程において、制御部9が調整部25により従動ローラー22を移動させるものとしたが、ユーザーが調整部25の調整ネジ253を手動で回転させることにより従動ローラー22を移動させるものとしても良い。この場合には、例えば、調整工程において、レーザーセンサー24a~24cにより検出された変位量がモニター(図示略)等に表示され、ユーザーはその変位量が予め設定された目標値に近付くように、調整部25により従動ローラー22を移動させて搬送ベルト23の張力を調整する。
また、上記した搬送ベルトの張力調整方法では、検出工程において、搬送装置2に設けられたレーザーセンサー24a~24cにより変位量を検出するものとしたが、これに限られるものではない。例えば、レーザーセンサーを備えていない搬送装置において搬送ベルトの張力を調整する場合にあっては、当該搬送装置に対してレーザーセンサーを取り付けた上で検出工程を行い、搬送ベルトの張力調整が完了した後に当該レーザーセンサーを取り外すものとしても良い。 In the above-described method for adjusting the tension of the conveyor belt, thecontrol unit 9 moves the driven roller 22 by the adjusting unit 25 in the tension applying step and the adjusting step. However, the user manually adjusts the adjusting screw 253 of the adjusting unit 25. The driven roller 22 may be moved by rotating at. In this case, for example, in the adjustment process, 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.
In the above-described method for adjusting the tension of the conveyor belt, the displacement amount is detected by thelaser sensors 24a to 24c provided in the conveyor device 2 in the detection step, but the present invention is not limited to this. For example, when adjusting the tension of the conveyor belt in a conveyor that does not have a laser sensor, 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.
また、上記した搬送ベルトの張力調整方法では、検出工程において、搬送装置2に設けられたレーザーセンサー24a~24cにより変位量を検出するものとしたが、これに限られるものではない。例えば、レーザーセンサーを備えていない搬送装置において搬送ベルトの張力を調整する場合にあっては、当該搬送装置に対してレーザーセンサーを取り付けた上で検出工程を行い、搬送ベルトの張力調整が完了した後に当該レーザーセンサーを取り外すものとしても良い。 In the above-described method for adjusting the tension of the conveyor belt, the
In the above-described method for adjusting the tension of the conveyor belt, the displacement amount is detected by the
[フレーム]
図1に示すように、フレーム100は、X軸方向に沿って延在する矩形の本体部101と、本体部101におけるX軸方向一端部を支持する第一の土台部102と、本体部101におけるX軸方向他端部を支持する第二の土台部103とから主に構成されている。
第一の土台部102は、その内部にノズル保湿部等(図示略)を格納保持しつつ本体部101の一端部を下方から支持している。また、第二の土台部103は、その内部にメンテナンス部等(図示略)を格納保持しつつ本体部101の他端部を下方から支持している。
本体部101は、後述する主走査装置5の一対のキャリッジレール51,51をX軸方向に向けた状態で内側に格納保持しており、キャリッジ4は本体部101の内部でX軸方向に沿って搬送される。
また、第一の土台部102と第二の土台部103は、前述した搬送装置2を挟んでX軸方向の両側に配置され、本体部101は搬送装置2の上方に架設されている。これにより、搬送装置2による記録媒体の搬送方向に直交する方向でキャリッジ4を搬送しつつ当該キャリッジ4に搭載された各ヘッド3からインクを吐出して画像形成を行うことを可能としている。 [flame]
As shown in FIG. 1, theframe 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.
Thefirst 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.
Themain 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, thefirst 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.
図1に示すように、フレーム100は、X軸方向に沿って延在する矩形の本体部101と、本体部101におけるX軸方向一端部を支持する第一の土台部102と、本体部101におけるX軸方向他端部を支持する第二の土台部103とから主に構成されている。
第一の土台部102は、その内部にノズル保湿部等(図示略)を格納保持しつつ本体部101の一端部を下方から支持している。また、第二の土台部103は、その内部にメンテナンス部等(図示略)を格納保持しつつ本体部101の他端部を下方から支持している。
本体部101は、後述する主走査装置5の一対のキャリッジレール51,51をX軸方向に向けた状態で内側に格納保持しており、キャリッジ4は本体部101の内部でX軸方向に沿って搬送される。
また、第一の土台部102と第二の土台部103は、前述した搬送装置2を挟んでX軸方向の両側に配置され、本体部101は搬送装置2の上方に架設されている。これにより、搬送装置2による記録媒体の搬送方向に直交する方向でキャリッジ4を搬送しつつ当該キャリッジ4に搭載された各ヘッド3からインクを吐出して画像形成を行うことを可能としている。 [flame]
As shown in FIG. 1, the
The
The
Further, the
[主走査装置及びキャリッジ]
主走査装置5は、フレーム100の本体部101の内部において、X軸方向に沿って延在するように支持された棒状の一対のキャリッジレール51,51を備えている。これら一対のキャリッジレール51,51は、搬送装置2の搬送ベルト23の上方を跨ぐように設けられている。そして、キャリッジレール51,51には、箱状のキャリッジ4がX軸方向に沿って往復移動可能に支持されている。 [Main scanning device and carriage]
Themain 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.
主走査装置5は、フレーム100の本体部101の内部において、X軸方向に沿って延在するように支持された棒状の一対のキャリッジレール51,51を備えている。これら一対のキャリッジレール51,51は、搬送装置2の搬送ベルト23の上方を跨ぐように設けられている。そして、キャリッジレール51,51には、箱状のキャリッジ4がX軸方向に沿って往復移動可能に支持されている。 [Main scanning device and carriage]
The
キャリッジ4は上部が開放された略矩形の筐体であり、その底板に複数のヘッド3が搭載される。キャリッジ4は、図1に示すように、Y軸方向における両側面の上部においてY軸方向両側に向かって腕部42,42が延出されており、当該各腕部42,42がそれぞれリニアガイドを介してキャリッジレール51,51の上部に載置されており、これによってキャリッジレール51,51上をX軸方向に沿ってスライド移動可能となっている。
また、キャリッジレール51,51とキャリッジ4の腕部42,42との間にはリニアモーターが装備されている。すなわち、各キャリッジレール51,51にはリニアモーターの固定子が装備され、キャリッジ4の各腕部42,42には可動子が装備されており、固定子側のコイルの電流制御によりキャリッジ4はX軸方向に沿った搬送動作が付与される。 Thecarriage 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. That is, 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, and the carriage 4 is controlled by current control of the stator side coil. A transport operation along the X-axis direction is given.
また、キャリッジレール51,51とキャリッジ4の腕部42,42との間にはリニアモーターが装備されている。すなわち、各キャリッジレール51,51にはリニアモーターの固定子が装備され、キャリッジ4の各腕部42,42には可動子が装備されており、固定子側のコイルの電流制御によりキャリッジ4はX軸方向に沿った搬送動作が付与される。 The
A linear motor is provided between the carriage rails 51 and 51 and the
図7は、キャリッジ4の底板41を上方から見た概略図である。このインクジェット記録装置1では、Y(イエロー),Lm(ライトマゼンタ),Or(オレンジ),M(マゼンタ),Bk(ブラック),Bl(ブルー),Lk(ライトブラック),C(シアン),Lc(ライトシアン)の九色のカラーについてそれぞれ九つのヘッド3を備え、合計81基のヘッド3がキャリッジ4の底板に取り付けられている。
各色彩のヘッド群は、図示のように、X軸方向に沿ってY,Lm,Or,M,Bk,Bl,Lk,C,Lcの順番で並んでおり、各ヘッド群の九つのヘッド3は、Y軸方向に沿って千鳥状に並んで配置されている。
また、底板41は各ヘッド3の取り付け位置毎にY軸方向に沿ったスリット状の開口を備えており、底板41に対して上方から取り付けられた各ヘッド3は、開口を通じてキャリッジ4の真下にインクの液滴を吐出することを可能としている。なお、図7に示す例では、Yの色彩についてのみ開口を示しており、他の色彩については省略している。
そして、前述のように、各色彩について、九つのヘッド3を千鳥状に配置することで、キャリッジ4の底板41におけるY軸方向のほぼ全幅に渡る範囲内で任意の位置に各色彩のインクの吐出を行うことを可能としている。 FIG. 7 is a schematic view of thebottom plate 41 of the carriage 4 as viewed from above. In 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.
As shown in the figure, 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 nineheads 3 of each head group are arranged. Are arranged in a staggered manner along the Y-axis direction.
Thebottom 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. In the example shown in FIG. 7, an opening is shown only for the Y color, and the other colors are omitted.
As described above, the nineheads 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.
各色彩のヘッド群は、図示のように、X軸方向に沿ってY,Lm,Or,M,Bk,Bl,Lk,C,Lcの順番で並んでおり、各ヘッド群の九つのヘッド3は、Y軸方向に沿って千鳥状に並んで配置されている。
また、底板41は各ヘッド3の取り付け位置毎にY軸方向に沿ったスリット状の開口を備えており、底板41に対して上方から取り付けられた各ヘッド3は、開口を通じてキャリッジ4の真下にインクの液滴を吐出することを可能としている。なお、図7に示す例では、Yの色彩についてのみ開口を示しており、他の色彩については省略している。
そして、前述のように、各色彩について、九つのヘッド3を千鳥状に配置することで、キャリッジ4の底板41におけるY軸方向のほぼ全幅に渡る範囲内で任意の位置に各色彩のインクの吐出を行うことを可能としている。 FIG. 7 is a schematic view of the
As shown in the figure, 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
The
As described above, the nine
[ヘッド]
ヘッド3は、その底部において搬送される記録媒体と対向するノズルプレートにY軸方向に沿ったノズル列が複数本X軸方向に並んで形成されている。そして、ヘッド3の内部には、各ノズルにインクを導くインク流路と各ノズルごとに設けられた複数の圧電素子とを備えている。そして、インク流路は、ヘッド3の上部に設けられた第一のポート及び第二のポートに連通しており、第一のポートを介してインク供給系(図示略)から各ノズルにインクが供給され、第二のポートから余分なインクが排出される。 [head]
Thehead 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.
ヘッド3は、その底部において搬送される記録媒体と対向するノズルプレートにY軸方向に沿ったノズル列が複数本X軸方向に並んで形成されている。そして、ヘッド3の内部には、各ノズルにインクを導くインク流路と各ノズルごとに設けられた複数の圧電素子とを備えている。そして、インク流路は、ヘッド3の上部に設けられた第一のポート及び第二のポートに連通しており、第一のポートを介してインク供給系(図示略)から各ノズルにインクが供給され、第二のポートから余分なインクが排出される。 [head]
The
[発明の実施形態の技術的効果]
以上、上記した実施形態によれば、インクジェット記録装置1に設けられ、駆動ローラー21及び従動ローラー22に張架された無端状の搬送ベルト23により記録媒体を搬送する搬送装置2において、搬送ベルト23の張力を調整する搬送ベルトの張力調整方法が、従動ローラー22を移動させて搬送ベルト23に張力を付与する張力付与工程と、レーザーセンサー24a~24cにより、搬送ベルト23に張力を付与する前を基準とした駆動ローラー21の搬送ベルト23張架部分の撓みによる変位量を検出する検出工程と、変位量に基づいて、従動ローラー22を移動させて搬送ベルト23の張力を調整する調整工程と、を有するので、搬送ベルト23に張力が付与されることで駆動ローラー21に発生する撓みによる変位量に基づいて、張力調整を行うことができる。駆動ローラー21は主に搬送ベルト23張架部分で撓むため、駆動ローラー21の搬送ベルト23張架部分のいずれかの撓みによる変位量に基づき張力を調整することで、搬送ベルト23の張力を精度良く調整することが可能となる。更に、駆動ローラー21の撓みによる変位量に基づいて搬送ベルト23の張力調整を行うので、駆動ローラー21及び従動ローラー22の撓みに起因して発生する印画時の画質の劣化を抑制することができる。 [Technical effects of the embodiment of the invention]
As described above, according to the above-described embodiment, in theconveyance 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. A detection step of detecting the amount of displacement due to bending of the stretched portion of the conveyor belt 23 of the driving roller 21 as a reference, an adjustment step of adjusting the tension of the conveyor belt 23 by moving the driven roller 22 based on the amount of displacement, Therefore, based on the amount of displacement due to the bending that occurs in the drive roller 21 when tension is applied to the conveyor belt 23. , It is possible to perform tension adjustment. Since the driving roller 21 is mainly bent at the stretched portion of the conveyor belt 23, the tension of the conveyor belt 23 is adjusted by adjusting the tension based on the amount of displacement caused by any of the stretched portions of the conveyor belt 23 of the drive roller 21. It becomes possible to adjust with high accuracy. Furthermore, since the tension of the conveying belt 23 is adjusted based on the amount of displacement due to the deflection of the driving roller 21, it is possible to suppress degradation in image quality during printing caused by the deflection of the driving roller 21 and the driven roller 22. .
以上、上記した実施形態によれば、インクジェット記録装置1に設けられ、駆動ローラー21及び従動ローラー22に張架された無端状の搬送ベルト23により記録媒体を搬送する搬送装置2において、搬送ベルト23の張力を調整する搬送ベルトの張力調整方法が、従動ローラー22を移動させて搬送ベルト23に張力を付与する張力付与工程と、レーザーセンサー24a~24cにより、搬送ベルト23に張力を付与する前を基準とした駆動ローラー21の搬送ベルト23張架部分の撓みによる変位量を検出する検出工程と、変位量に基づいて、従動ローラー22を移動させて搬送ベルト23の張力を調整する調整工程と、を有するので、搬送ベルト23に張力が付与されることで駆動ローラー21に発生する撓みによる変位量に基づいて、張力調整を行うことができる。駆動ローラー21は主に搬送ベルト23張架部分で撓むため、駆動ローラー21の搬送ベルト23張架部分のいずれかの撓みによる変位量に基づき張力を調整することで、搬送ベルト23の張力を精度良く調整することが可能となる。更に、駆動ローラー21の撓みによる変位量に基づいて搬送ベルト23の張力調整を行うので、駆動ローラー21及び従動ローラー22の撓みに起因して発生する印画時の画質の劣化を抑制することができる。 [Technical effects of the embodiment of the invention]
As described above, according to the above-described embodiment, in the
また、検出工程において、レーザーセンサー24a~24cにより駆動ローラー21の搬送ベルト23張架部分のうち軸方向中央部の撓みによる変位量を検出するので、撓みが最も大きい駆動ローラー21の軸方向中央部の変位量に基づき張力を調整することができ、搬送ベルト23の張力を更に精度良く調整することが可能となる。
Further, in the detection step, 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.
また、検出工程において、レーザーセンサー24a~24cにより駆動ローラー21の搬送ベルト23張架部分のうち軸方向中央部及び軸方向両端部の撓みによる変位量を検出するので、駆動ローラー21の軸方向両端部の変位量の左右差を検出することができ、これに基づいて搬送ベルト23の張力を調整することで、搬送ベルト23にかかる張力を幅方向において均一に調整することができる。
Further, in the detection step, 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.
また、検出工程において、レーザーセンサーにより駆動ローラー21の搬送ベルト23張架部分のうち軸方向全体の撓みによる変位量を検出する場合には、駆動ローラー21の軸方向全体の変位量を検出することができ、これに基づいて搬送ベルト23の張力を調整することで、搬送ベルト23の張力を更に精度良く調整することができる。
Further, in the detection step, when 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. By adjusting the tension of the conveyor belt 23 based on this, the tension of the conveyor belt 23 can be adjusted with higher accuracy.
また、張力付与工程及び調整工程において、駆動ローラー21を固定し、従動ローラー22を移動させるので、検出工程において駆動ローラー21の撓みによる変位量を精度良く検出することができる。
Moreover, since 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.
また、上記した実施形態によれば、インクジェット記録装置1に設けられ、駆動ローラー21及び従動ローラー22に張架された無端状の搬送ベルト23により記録媒体を搬送する搬送装置2が、従動ローラー22を移動させて搬送ベルト23の張力を調整する調整部25と、搬送ベルト23に張力が付与される前を基準とした駆動ローラー21の搬送ベルト23張架部分の撓みによる変位量を検出するレーザーセンサー24a~24cと、調整部25により従動ローラー22を移動させて搬送ベルト23に張力を付与し、レーザーセンサー24a~24cにより搬送ベルト23に張力が付与される前を基準とした駆動ローラー21の搬送ベルト23張架部分のいずれかの撓みによる変位量を検出し、当該変位量に基づいて調整部25により従動ローラー22を移動させて搬送ベルト23の張力を調整する制御部9と、を備えるので、上記した搬送ベルトの張力調整方法の効果と同様の効果を奏する。
Further, according to the above-described embodiment, 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. And 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. A control unit 9 for adjusting the tension of the conveying by moving the driven roller 22 the belt 23, so provided with the same effects as the effects of the tension adjusting method of the conveyor belt described above.
また、調整部25が、従動ローラー22の軸方向両端部をそれぞれ移動させるので、搬送ベルト23の張力を幅方向において均一に調整することができる。
In addition, since 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.
また、駆動ローラー21は固定され、調整部25が従動ローラー22を移動させるので、レーザーセンサー24a~24cにより駆動ローラー21の撓みによる変位量をより精度良く検出することができる。
Further, since 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.
[その他]
なお、本発明の実施の形態における記述は、本発明に係る搬送装置及びインクジェット記録装置の一例であり、これに限定されるものではない。搬送装置及びインクジェット記録装置を構成する各機能部の細部構成及び細部動作に関しても適宜変更可能である。
また、本発明の搬送装置及びインクジェット記録装置は、記録媒体に対して印画動作を行う場合のみならず、基板に対して配線材料を吐出することで配線パターンを形成する場合等、その他の用途に用いることも可能である。 [Others]
Note that 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.
In addition, 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.
なお、本発明の実施の形態における記述は、本発明に係る搬送装置及びインクジェット記録装置の一例であり、これに限定されるものではない。搬送装置及びインクジェット記録装置を構成する各機能部の細部構成及び細部動作に関しても適宜変更可能である。
また、本発明の搬送装置及びインクジェット記録装置は、記録媒体に対して印画動作を行う場合のみならず、基板に対して配線材料を吐出することで配線パターンを形成する場合等、その他の用途に用いることも可能である。 [Others]
Note that 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.
In addition, 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.
また、上記した実施形態では、第1ローラーが駆動ローラー21であり、第2ローラーが従動ローラー22であるものとして説明したが、第1ローラーが従動ローラー22であり、第2ローラーが駆動ローラー21であるものとしても良い。
In the above-described embodiment, the first roller is the driving roller 21 and the second roller is the driven roller 22. However, the first roller is the driven roller 22, and the second roller is the driving roller 21. It is good as it is.
また、上記した実施形態では、撓み検出センサーとしてレーザーセンサー24a~24cを用いるものとしたが、搬送ベルト23に張力がかかることで発生するローラーの撓みによる変位量を検出することができるものであれば、いずれのセンサーであっても良い。例えば、超音波センサーや静電容量センサー等の非接触式センサーであっても良いし、ピックテスターやダイヤルゲージ等の接触式センサーであっても良い。
In the above-described embodiment, the laser sensors 24a to 24c are used as the deflection detection sensors. However, 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. For example, 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.
また、上記した実施形態では、レーザーセンサー24a~24cが駆動ローラー21に対向配置されているものとしたが、従動ローラー22に対向配置されているものとしても良い。この場合には、レーザーセンサー24a~24cが、調整部25によりY軸方向に移動する従動ローラー22に追従するように構成される。
In the above-described embodiment, 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. In this case, 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.
また、上記した実施形態では、駆動ローラー21の軸方向中央部及び両端部に対向配置されるレーザーセンサー24a~24cが設けられているものとしたが、レーザーセンサー24aのみが設けられていても良いし、レーザーセンサー24aを含む2つ又は4つ以上のレーザーセンサーが設けられていても良い。
また、上記した実施形態では、レーザーセンサー24a~24cは、支持台241に固定されているものとしたが、X軸方向に走査可能に構成されていても良い。この場合には、駆動ローラー21の搬送ベルト23張架部分のうち軸方向全体の撓みによる変位量を検出することが可能となり、これに基づいて搬送ベルト23の張力を調整することで、搬送ベルト23の張力を更に精度良く調整することができる。 Further, in the above-described embodiment, thelaser 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.
In the above-described embodiment, thelaser 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.
また、上記した実施形態では、レーザーセンサー24a~24cは、支持台241に固定されているものとしたが、X軸方向に走査可能に構成されていても良い。この場合には、駆動ローラー21の搬送ベルト23張架部分のうち軸方向全体の撓みによる変位量を検出することが可能となり、これに基づいて搬送ベルト23の張力を調整することで、搬送ベルト23の張力を更に精度良く調整することができる。 Further, in the above-described embodiment, the
In the above-described embodiment, the
また、上記した実施形態では、従動ローラー22を移動させて搬送ベルト23の張力を調整するものとしたが、駆動ローラー21及び従動ローラー22の両方を移動させて搬送ベルト23の張力を調整するものとしても良い。
In the above-described embodiment, the driven roller 22 is moved to adjust the tension of the conveyor belt 23. However, 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.
また、上記した実施形態では、蛇行調整部26が制御部9の制御下で駆動するものとしたが、ユーザーが手動によりハウジング263を移動させることで搬送ベルト23の移動方向を調整し、搬送ベルト23の蛇行を防止するものとしても良い。
In the above-described embodiment, the meandering adjustment unit 26 is driven under the control of the control unit 9. However, 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.
また、上記した実施形態では、搬送装置2がテンションローラーを備えていないものとしたが、テンションローラーを備える構成であっても良い。この場合には、搬送ベルト23の張力を更に精度良く調整することが可能となる。
In the above-described embodiment, the transport device 2 does not include a tension roller. However, 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.
本発明は、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に利用することができる。
The present invention can be used for a tension adjustment method for a conveyor belt, a conveyor apparatus, and an inkjet recording apparatus.
1 インクジェット記録装置
2 搬送装置
3 ヘッド(インクジェットヘッド)
9 制御部
21 駆動ローラー(第1ローラー)
22 従動ローラー(第2ローラー)
23 搬送ベルト
24a、24b、24c レーザーセンサー(撓み検出センサー)
25 調整部 DESCRIPTION OF SYMBOLS 1Inkjet recording apparatus 2 Conveyance apparatus 3 Head (inkjet head)
9Control unit 21 Drive roller (first roller)
22 Followed roller (second roller)
23 Conveyor belt 24a, 24b, 24c Laser sensor (deflection detection sensor)
25 Adjustment unit
2 搬送装置
3 ヘッド(インクジェットヘッド)
9 制御部
21 駆動ローラー(第1ローラー)
22 従動ローラー(第2ローラー)
23 搬送ベルト
24a、24b、24c レーザーセンサー(撓み検出センサー)
25 調整部 DESCRIPTION OF SYMBOLS 1
9
22 Followed roller (second roller)
23
25 Adjustment unit
Claims (9)
- インクジェット記録装置に設けられ、第1ローラー及び第2ローラーに張架された無端状の搬送ベルトにより記録媒体を搬送する搬送装置において、前記搬送ベルトの張力を調整する搬送ベルトの張力調整方法であって、
前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトに張力を付与する張力付与工程と、
撓み検出センサーにより、前記搬送ベルトに張力を付与する前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出する検出工程と、
前記変位量に基づいて、前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する調整工程と、
を有することを特徴とする搬送ベルトの張力調整方法。 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. And
A tension applying step of applying tension to the conveyor belt by moving at least one of the first roller and the second roller;
A detection step of detecting, by a deflection detection sensor, a displacement amount due to any deflection of the conveyor belt stretched portion of the first roller with reference to before the tension is applied to the conveyor belt;
An adjustment step of adjusting the tension of the conveyor belt by moving at least one of the first roller and the second roller based on the displacement amount;
A method for adjusting the tension of a conveyor belt, comprising: - 前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向中央部の撓みによる変位量を検出することを特徴とする請求項1に記載の搬送ベルトの張力調整方法。 The method for adjusting the tension of the conveyor belt according to claim 1, wherein, in the detecting step, a displacement amount due to a deflection of an axially central portion of the conveyor belt stretched portion of the first roller is detected.
- 前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向中央部及び軸方向両端部の撓みによる変位量を検出することを特徴とする請求項1又は2に記載の搬送ベルトの張力調整方法。 3. The transport belt according to claim 1, wherein in the detection step, a displacement amount due to bending of an axial center portion and both axial end portions of the transport belt stretched portion of the first roller is detected. Tension adjustment method.
- 前記検出工程において、前記第1ローラーの前記搬送ベルト張架部分のうち軸方向全体の撓みによる変位量を検出することを特徴とする請求項1から3のいずれか一項に記載の搬送ベルトの張力調整方法。 4. The conveyance belt according to claim 1, wherein in the detection step, a displacement amount due to bending in the entire axial direction of the conveyance belt stretched portion of the first roller is detected. 5. Tension adjustment method.
- 前記張力付与工程及び前記調整工程において、前記第1ローラーを固定し、前記第2ローラーを移動させることを特徴とする請求項1から4のいずれか一項に記載の搬送ベルトの張力調整方法。 The method for adjusting the tension of the conveyor belt according to any one of claims 1 to 4, wherein, in the tension applying step and the adjusting step, the first roller is fixed and the second roller is moved.
- インクジェット記録装置に設けられ、第1ローラー及び第2ローラーに張架された無端状の搬送ベルトにより記録媒体を搬送する搬送装置であって、
前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する調整部と、
前記搬送ベルトに張力が付与される前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出する撓み検出センサーと、
前記調整部により前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトに張力を付与し、前記撓み検出センサーにより前記搬送ベルトに張力が付与される前を基準とした前記第1ローラーの前記搬送ベルト張架部分のいずれかの撓みによる変位量を検出し、前記変位量に基づいて前記調整部により前記第1ローラー及び前記第2ローラーの少なくとも一方を移動させて前記搬送ベルトの張力を調整する制御部と、
を備えることを特徴とする搬送装置。 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
A conveying device comprising: - 前記調整部は、前記第1ローラー及び前記第2ローラーの少なくとも一方の軸方向両端部をそれぞれ移動させることを特徴とする請求項6に記載の搬送装置。 The conveying device according to claim 6, wherein the adjusting unit moves at least one axial end portion of each of the first roller and the second roller.
- 前記第1ローラーは固定され、
前記調整部は、前記第2ローラーを移動させることを特徴とする請求項6又は7に記載の搬送装置。 The first roller is fixed;
The conveyance device according to claim 6 or 7, wherein the adjustment unit moves the second roller. - 請求項6から8のいずれか一項に記載の搬送装置と、
前記搬送装置により搬送される記録媒体に対してインクを吐出するインクジェットヘッドと、
を備えることを特徴とするインクジェット記録装置。 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;
An ink jet recording apparatus comprising:
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018024492A (en) * | 2016-08-08 | 2018-02-15 | 株式会社ミマキエンジニアリング | Medium conveyance mechanism of pinter and attachment method of conveyor belt |
US20210060841A1 (en) * | 2019-08-30 | 2021-03-04 | Fanuc Corporation | Injection molding machine |
CN115535543A (en) * | 2022-08-16 | 2022-12-30 | 日照东方电机有限公司 | Permanent magnet motor variable frequency belt conveying tensioning control method and system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0252815U (en) * | 1988-10-12 | 1990-04-17 | ||
JPH04121312A (en) * | 1990-09-07 | 1992-04-22 | Hoxan Corp | Tension synchronizer in conveyor |
JPH109368A (en) * | 1996-06-19 | 1998-01-13 | Mitsuboshi Belting Ltd | Belt load measuring pulley |
JP2001032909A (en) * | 1999-07-16 | 2001-02-06 | Nec Niigata Ltd | Belt driving device |
JP2001163478A (en) * | 1999-12-08 | 2001-06-19 | Toshiba Corp | Tension adjusting device for conveyor belt, paper sheet dividing apparatus having the tension adjusting device, tension adjusting method for conveyor belt, and paper sheet dividing method using the tension adjusting method |
-
2015
- 2015-12-07 WO PCT/JP2015/084288 patent/WO2016104125A1/en active Application Filing
- 2015-12-07 JP JP2016566090A patent/JP6562000B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0252815U (en) * | 1988-10-12 | 1990-04-17 | ||
JPH04121312A (en) * | 1990-09-07 | 1992-04-22 | Hoxan Corp | Tension synchronizer in conveyor |
JPH109368A (en) * | 1996-06-19 | 1998-01-13 | Mitsuboshi Belting Ltd | Belt load measuring pulley |
JP2001032909A (en) * | 1999-07-16 | 2001-02-06 | Nec Niigata Ltd | Belt driving device |
JP2001163478A (en) * | 1999-12-08 | 2001-06-19 | Toshiba Corp | Tension adjusting device for conveyor belt, paper sheet dividing apparatus having the tension adjusting device, tension adjusting method for conveyor belt, and paper sheet dividing method using the tension adjusting method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018024492A (en) * | 2016-08-08 | 2018-02-15 | 株式会社ミマキエンジニアリング | Medium conveyance mechanism of pinter and attachment method of conveyor belt |
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 (en) * | 2022-08-16 | 2022-12-30 | 日照东方电机有限公司 | Permanent magnet motor variable frequency belt conveying tensioning control method and system |
CN115535543B (en) * | 2022-08-16 | 2024-05-10 | 日照东方电机有限公司 | Permanent magnet motor variable frequency belt conveying tensioning control method and system |
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