EP4070962A1 - Heating control apparatus and printing apparatus - Google Patents

Heating control apparatus and printing apparatus Download PDF

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Publication number
EP4070962A1
EP4070962A1 EP22163176.5A EP22163176A EP4070962A1 EP 4070962 A1 EP4070962 A1 EP 4070962A1 EP 22163176 A EP22163176 A EP 22163176A EP 4070962 A1 EP4070962 A1 EP 4070962A1
Authority
EP
European Patent Office
Prior art keywords
conveyance
shielding
control apparatus
belt
heating control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22163176.5A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kohei SHINTA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of EP4070962A1 publication Critical patent/EP4070962A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4078—Printing on textile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0024—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using conduction means, e.g. by using a heated platen
    • B41J11/00242—Controlling the temperature of the conduction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/007—Conveyor belts or like feeding devices

Definitions

  • the present disclosure relates to a technique for attaching a planar conveyed object such as cloth or paper to a conveyance member and conveying the planar conveyed object, and more particularly to a technique for heating such a conveyance member.
  • the printing apparatus includes a printing unit that performs printing on a fabric, a conveyance belt that supports the fabric, a belt driving roller that conveys the fabric in a conveyance direction by causing the conveyance belt to circulate, and a heating pressing unit that includes a heater and is provided to be movable along the conveyance direction while heating and pressing the fabric against the conveyance belt.
  • the fabric is attached to the conveyance belt via an adhesive applied to the conveyance belt, and the adhesive is heated to increase its adhesion.
  • the driving of the heater is stopped, and the heating pressing unit is separated from the fabric by a lifting and lowering device.
  • JP 2018-192733 A when the printing ends, the driving of the heater is stopped and the heating pressing unit is separated from the fabric, but since the temperature of the heater slowly decreases and the conveyance belt has been stopped, the same location of the conveyance belt is heated by residual heat of the heater. As a result, the conveyance belt is locally thermally damaged.
  • JP 2018-192733 A the fabric is used as a conveyed object, but the above problem exists also in the case of a planar conveyed object such as paper other than the fabric.
  • An object of the present disclosure is to solve this problem and provide a heating control apparatus and a printing apparatus capable of reducing a risk of damaging a conveyance member due to residual heat of a heat source that heats the conveyance member in a case where conveyance of a planar conveyed object is stopped and driving of the heat source is stopped.
  • a heating control apparatus that controls heating of a conveyance member configured to convey a planar conveyed object in a state in which the planar conveyed object is in close contact with a conveyance surface including an adhesive layer
  • the heating control apparatus reflecting one aspect of the present invention comprises: a heat source disposed to face the conveyance member; a shielding member provided to be movable forward and backward between a shielding position at which radiation of heat from the heat source to the conveyance member is shielded and a position retracted from the shielding position; and a control means configured to perform control to advance the shielding member to the shielding position in a case where conveyance of the conveyance member is stopped.
  • a printing apparatus 1 as one embodiment of the present disclosure will be described below.
  • the printing apparatus 1 is an ink jet printer that ejects ink in the form of droplets from a print head 10 to form (print) an image on a fabric 60 as a planar conveyed object.
  • the fabric 60 includes cotton, silk, wool, chemical fiber, blended yarn, or the like.
  • the printing apparatus 1 is connected to an information processing device such as a personal computer (not illustrated) via a network.
  • the printing apparatus 1 receives a print job including a print instruction, the number of times of repetition of printing, image data to be printed, and the like from the information processing device.
  • the printing apparatus 1 generates print image data from the image data included in the received print job and forms an image on the fabric 60 with the ink ejected from the print head 10 on the basis of the generated print image data ( Fig. 1B ).
  • An endless belt 20 (conveyance member) stretched by a driving roller 22 and a driven roller 21 is provided in a housing of the printing apparatus 1.
  • the driving roller 22 is rotated in a Y direction by a motor 51, and the motor 51 is rotationally controlled by a drive circuit 52.
  • the belt 20 circulates in an X direction according to the rotation of the driving roller 22.
  • the fabric 60 is conveyed by the circulating belt 20.
  • An adhesive is applied or attached to the outer peripheral surface (conveyance surface) of the belt 20 to form an adhesive layer.
  • a heat-sensitive base adhesive or the like that exhibits adhesion by heating can be used.
  • Examples of commercially available heat-sensitive base adhesives include textile printing base adhesive HA series (heat-sensitive base adhesive) and textile printing base adhesive SI series (pressuresensitive base adhesive), and the like manufactured by Yokohama Polymer Research Institute Co., Ltd. Additionally, a base adhesive described in each of JP 2006-176267 A , JP 2006-199498 A , JP 2006-264805 A , JP 2006-264806 A and the like can be used.
  • the fabric 60 can be conveyed while being in close contact with the outer peripheral surface of the belt 20, the fabric 60 does not slide on the belt 20, and contraction and extension of the fabric 60 can be substantially reduced.
  • a heater 41 that heats the belt 20 (and the adhesive applied to the outer peripheral surface of the belt 20) is provided below the driven roller 21 across the belt 20 while being spaced apart from the outer peripheral surface (adhesive layer) of the belt 20 at a predetermined interval in order to exhibit the adhesion of the outer peripheral surface of the belt 20.
  • a distance between the belt 20 and the heater 41 can be, for example, 5 millimeters (mm) to 10 mm
  • the heater 41 can include, for example, an electric heating wire including an alloy (nichrome) mainly containing nickel and chromium, an alloy of iron, chromium, and aluminum, or the like. Alternatively, a halogen lamp can also be used. Temperature at which the adhesive is heated by the heater 41 is in a range of 30°C to 40°C.
  • the length of the heater 41 in the width direction of the belt 20 (direction orthogonal to the circumferential direction of the belt 20) is substantially the same as the length of the belt 20 in the width direction.
  • the heater 41 is turned on or off by turning on or off the supply of power from a drive circuit 49.
  • a shielding plate 43 (shielding member), a guide plate 42, and a driving unit 46 are provided.
  • the shielding plate 43 is plate-like and reciprocates between a retraction position ( Fig. 1A ) retracted from a space 20b between the belt 20 and the heater 41 and a shielding position ( Fig. 3 ) entering the space 20b.
  • the guide plate 42 supports the shielding plate 43 in a slidable (forward and backward movable) manner between the shielding position and the retraction position.
  • the driving unit 46 drives the shielding plate 43.
  • the shielding plate 43 includes, for example, a heat insulating material such as iron, aluminum, or a resin member, and has a thickness of, for example, 1 to 2 mm
  • the length of the shielding plate 43 in the width direction is longer than the length of the heater 41 in the width direction.
  • a plurality of fins 44 (heat dissipation members) is provided upright on a surface of the shielding plate 43 that faces the belt 20 and is on a side close to the driven roller 21.
  • the plurality of fins 44 radiates heat received from the heater 41.
  • the sliding movement of the shielding plate 43 is performed by a rack-and-pinion mechanism 53 including a rack 45a and a pinion 45b.
  • the pinion 45b is connected to a motor 47, rotates by the rotation of the motor 47, and slides on the shielding plate 43 via the rack 45a.
  • the pinion 45b rotates in a V direction, whereby the shielding plate 43 moves to a shielding position between the heater 41 and a belt portion 20c wound around the driven roller 21 in the belt 20. Meanwhile, the pinion 45b rotates in a W direction opposite to the V direction, whereby the shielding plate 43 moves to a retraction position away from between the heater 41 and the belt portion 20c.
  • a fabric supplying unit 31 and a fabric collecting unit 32 are provided below the belt 20.
  • the fabric supplying unit 31 pays out the strip-shaped fabric 60, and the fabric collecting unit 32 winds the fabric 60.
  • the fabric collecting unit 32 is driven in a direction of winding the fabric 60, and circulation of the belt 20 allows the fabric 60 to be paid out from the fabric supplying unit 31 and to the fabric 60 to be wound around the fabric collecting unit 32.
  • the print head 10 that ejects the ink downward is provided above the belt 20.
  • the Ink ejected from the print head 10 forms an image on the fabric 60 during conveyance of the fabric 60 by the belt 20. Furthermore, the fabric 60 on which the image is formed is accommodated in the fabric collecting unit 32.
  • An operation panel 15 that receives a user's operation and displays a message to the user is provided above the housing of the printing apparatus 1.
  • control circuit 50 that controls drive circuits 48, 49, 52, and the like is provided.
  • the control circuit 50 will be described next.
  • a part of the heater 41, the shielding plate 43, the driving unit 46, the drive circuit 48, and the control circuit 50 constitutes a heating control apparatus. Additionally, a part of the driving unit 46, the drive circuit 48, and the control circuit 50 constitutes a control means.
  • the control circuit 50 includes a central processing unit (CPU) 71, a read only memory (ROM) 72, a random access memory (RAM) 73, a printer control circuit 74, a storage circuit 75, an input/output circuit 76, a network communication circuit 77, an image memory 78, an image processing circuit 79, and the like.
  • CPU central processing unit
  • ROM read only memory
  • RAM random access memory
  • printer control circuit 74 a storage circuit 75
  • an input/output circuit 76 a network communication circuit 77
  • image memory 78 an image processing circuit 79
  • image processing circuit 79 an image processing circuit 79
  • the RAM 73 temporarily stores various control variables, setting values set by the operation panel 15, and the like and provides a work area when the CPU 71 executes a program.
  • the ROM 72 stores a control program and the like for causing the printing apparatus 1 to execute a print job.
  • the CPU 71 operates according to the control program stored in the ROM 72.
  • the CPU 71, the ROM 72, and the RAM 73 constitute a main control unit 70.
  • the network communication circuit 77 receives a print job from an information processing device, for example, a personal computer, via the network.
  • the print job includes a print instruction, the number of times of repetition of printing, image data, and the like.
  • the network communication circuit 77 writes the received print job as a print job in the storage circuit 75.
  • the storage circuit 75 includes a nonvolatile semiconductor memory. Note that the storage circuit 75 may include a hard disk. The storage circuit 75 temporarily stores, for example, the print job and the like.
  • the image processing circuit 79 performs various types of data processing on the image data of each color component of red (R), green (G), and blue (B) included in the print job, and generates print image data of each reproduced color of yellow (Y), magenta (M), cyan (C), and black (K).
  • the image memory 78 includes a nonvolatile semiconductor memory.
  • the image memory 78 temporarily stores the print image data and the like.
  • the CPU 71 operates according to the control program, whereby the main control unit 70 controls the printer control circuit 74, the storage circuit 75, the input/output circuit 76, the network communication circuit 77, the image memory 78, the image processing circuit 79, and the like.
  • the main control unit 70 causes the printer control circuit 74 to execute printing according to the received print job.
  • the input/output circuit 76 relays transmission and reception of information between the operation panel 15 and the main control unit 70.
  • the network communication circuit 77 receives the print job from the personal computer via the network.
  • the network communication circuit 77 writes the received print job in the storage circuit 75 (step S10).
  • the image processing circuit 79 generates print image data from the image data included in the print job (step S11).
  • the main control unit 70 outputs a print start instruction (signal instructing start of conveyance of the planar conveyed object) to the printer control circuit 74 (step S12).
  • the printer control circuit 74 controls the drive circuit 52 so that the drive circuit 52 starts the traveling of the belt 20 (step S21). Next, the printer control circuit 74 controls the drive circuit 49 so that the drive circuit 49 turns on the heater 41 (step S22). Next, the printer control circuit 74 controls the drive circuit 48 so that the drive circuit 48 moves the shielding plate 43 to the retraction position (step S23).
  • the main control unit 70 repeats control to the printer control circuit 74 (step S14) so that the printer control circuit 74 outputs the print image data (steps S13 to S15).
  • the printer control circuit 74 controls the print head 10 so that the print head 10 ejects the ink according to the print image data.
  • the print head 10 ejects the ink according to the print image data (step S25).
  • an image based on the print image data is printed on the fabric 60.
  • the main control unit 70 When the repetition of steps S13 to S15 ends, the main control unit 70 outputs a print end instruction (signal instructing stop of conveyance of the planar conveyed object) to the printer control circuit 74 (step S16).
  • the printer control circuit 74 controls the drive circuit 52 so that the drive circuit 52 stops the traveling of the belt 20 (step S31). Next, the printer control circuit 74 controls the drive circuit 49 so that the drive circuit 49 turns off the heater 41 (step S32). Next, the printer control circuit 74 controls the drive circuit 48 so that the drive circuit 48 moves the shielding plate 43 to the shielding position (step S33).
  • steps S31 and S32 may be reversed, or steps S31 and S32 may be executed simultaneously. Alternatively, steps S32, S33, and S31 may be executed in this order.
  • Fig. 6A illustrates a state in which shielding plates 81a, 81b, ⁇ , and 81g have rotated to a shielding position between a belt 20 and a heater 41 and have stopped.
  • Fig. 6B illustrates a state in which the shielding plates 81a, 81b, ⁇ , and 81g make a half-turn from the shielding position to be positioned at a retraction position.
  • Fig. 6C is a view of the shielding plates 81a, 81b, ⁇ , and 81g in a shielding state as viewed from above.
  • Fig. 6D is a cross-sectional view taken along line D-D of Fig. 6C.
  • Fig. 6E is a view of the shielding plates 81a, 81b, ⁇ , and 81g in the retraction position as viewed from above.
  • reference sign 47 denotes a motor that rotationally drives the shielding plates 81a, 81b, ⁇ , and 81g in one of a rotation direction A and a rotation direction B via rotation shafts 82a, 82b, ⁇ , and 82g.
  • a motor 47 is rotationally controlled by a drive circuit 48 as follows.
  • a printer control circuit 74 controls a drive circuit 52 so that the drive circuit 52 starts the traveling of the belt 20 and controls a drive circuit 49 so that the drive circuit 49 turns on the heater 41.
  • the printer control circuit 74 controls the drive circuit 48 so that the drive circuit 48 rotationally drives the shielding plates 81a, 81b, ⁇ , and 81g in the rotation direction A to move the shielding plates 81a, 81b, ⁇ , and 81g to the retraction position.
  • the printer control circuit 74 controls the drive circuit 52 so that the drive circuit 52 stops the traveling of the belt 20 and controls the drive circuit 49 so that the drive circuit 49 turns off the heater 41.
  • the printer control circuit 74 controls the drive circuit 48 so that the drive circuit 48 rotationally drives the shielding plates 81a, 81b, ⁇ , and 81g in the rotation direction B to move the shielding plates 81a, 81b, ⁇ , and 81g to the shielding position.
  • the heater 41 is disposed immediately below the belt 20, but the aspect of the present disclosure is not limited to this.
  • the heater 41 may be disposed around the belt 20 at a position suitable for heating the belt 20.
  • a printing unit is provided and performs printing on a fabric or the like, but the printing unit is not an essential configuration in the aspect of the present disclosure.
  • the aspect of the present disclosure can also be implemented with a configuration in which a movable shielding member is provided while a configuration in which a planar conveyed object such as cloth is conveyed while being attached to a conveyance member such as a belt and a heating unit that heats the conveyance member to increase the viscosity of the adhesive layer a movable shielding member are included.
  • the aspect of the present disclosure can be used in a cutting device that cuts a long strip-shaped fabric in a conveyance direction.
  • the heating control apparatus of the present disclosure is useful as a technique that has an effect of reducing a risk of damaging the conveyance member due to residual heat of the heat source and heats the conveyance member that conveys the planar conveyed object.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ink Jet (AREA)
  • Treatment Of Fiber Materials (AREA)
EP22163176.5A 2021-04-08 2022-03-21 Heating control apparatus and printing apparatus Pending EP4070962A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021065587A JP2022161064A (ja) 2021-04-08 2021-04-08 加熱制御装置及び印刷装置

Publications (1)

Publication Number Publication Date
EP4070962A1 true EP4070962A1 (en) 2022-10-12

Family

ID=80928873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22163176.5A Pending EP4070962A1 (en) 2021-04-08 2022-03-21 Heating control apparatus and printing apparatus

Country Status (2)

Country Link
EP (1) EP4070962A1 (ja)
JP (1) JP2022161064A (ja)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006176267A (ja) 2004-12-22 2006-07-06 Konica Minolta Holdings Inc 粘着性無端搬送ベルト、搬送装置及びインクジェットプリンターと、それらを用いて作製した記録物
JP2006199498A (ja) 2004-12-22 2006-08-03 Konica Minolta Holdings Inc インクジェットプリンター及びそれを用いて作製した記録物
JP2006264805A (ja) 2005-03-22 2006-10-05 Konica Minolta Holdings Inc 粘着性無端搬送ベルトもしくはローラ、およびそれを用いた搬送装置、該搬送装置を用いたインクジェットプリンター
JP2006264806A (ja) 2005-03-22 2006-10-05 Konica Minolta Holdings Inc 粘着性無端搬送ベルト、及びそれを用いた搬送装置
US20140028768A1 (en) * 2012-05-18 2014-01-30 Meijet Coating and Inks, Inc. Method and system for printing untreated textile in an inkjet printer
US9266348B1 (en) * 2014-11-18 2016-02-23 Xerox Corporation Active device for shielding media from a heater in a printer
JP2018192733A (ja) 2017-05-19 2018-12-06 セイコーエプソン株式会社 印刷装置
WO2021002109A1 (ja) * 2019-07-02 2021-01-07 富士ゼロックス株式会社 画像形成装置
US20210086537A1 (en) * 2019-09-19 2021-03-25 Seiko Epson Corporation Recording system, recording device, and control method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006176267A (ja) 2004-12-22 2006-07-06 Konica Minolta Holdings Inc 粘着性無端搬送ベルト、搬送装置及びインクジェットプリンターと、それらを用いて作製した記録物
JP2006199498A (ja) 2004-12-22 2006-08-03 Konica Minolta Holdings Inc インクジェットプリンター及びそれを用いて作製した記録物
JP2006264805A (ja) 2005-03-22 2006-10-05 Konica Minolta Holdings Inc 粘着性無端搬送ベルトもしくはローラ、およびそれを用いた搬送装置、該搬送装置を用いたインクジェットプリンター
JP2006264806A (ja) 2005-03-22 2006-10-05 Konica Minolta Holdings Inc 粘着性無端搬送ベルト、及びそれを用いた搬送装置
US20140028768A1 (en) * 2012-05-18 2014-01-30 Meijet Coating and Inks, Inc. Method and system for printing untreated textile in an inkjet printer
US9266348B1 (en) * 2014-11-18 2016-02-23 Xerox Corporation Active device for shielding media from a heater in a printer
JP2018192733A (ja) 2017-05-19 2018-12-06 セイコーエプソン株式会社 印刷装置
WO2021002109A1 (ja) * 2019-07-02 2021-01-07 富士ゼロックス株式会社 画像形成装置
US20220075298A1 (en) * 2019-07-02 2022-03-10 Fujifilm Business Innovation Corp. Image forming apparatus
US20210086537A1 (en) * 2019-09-19 2021-03-25 Seiko Epson Corporation Recording system, recording device, and control method

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