WO2017119192A1 - 印刷装置、印刷方法および制御装置 - Google Patents
印刷装置、印刷方法および制御装置 Download PDFInfo
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- WO2017119192A1 WO2017119192A1 PCT/JP2016/083677 JP2016083677W WO2017119192A1 WO 2017119192 A1 WO2017119192 A1 WO 2017119192A1 JP 2016083677 W JP2016083677 W JP 2016083677W WO 2017119192 A1 WO2017119192 A1 WO 2017119192A1
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- unit
- printing
- pressing
- displacement
- printing apparatus
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- 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
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B41J15/08—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles characterised by being applied to printers having transversely- moving carriages
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- 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
- B41J11/0005—Curl smoothing, i.e. smoothing down corrugated printing material, e.g. by pressing means acting on wrinkled printing material
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- 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
- B41J11/0035—Handling copy materials differing in thickness
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- 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
- B41J11/0045—Guides for printing material
- B41J11/005—Guides in the printing zone, e.g. guides for preventing contact of conveyed sheets with printhead
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- 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
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
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- 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
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B41J15/048—Conveyor belts or like feeding devices
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- 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
Definitions
- the present invention relates to a printing apparatus, a printing method, and a control apparatus.
- the printing apparatus includes a head having a large number of nozzles, and transports a recording medium and ejects ink while moving the head in a direction (main scanning direction) orthogonal to the recording medium transport direction (sub-scanning direction). It is configured as follows.
- the apparatus described in Patent Document 1 includes a media press that presses both edges in the width direction of the recording medium, and a detection unit that detects the rotation angle of each media press. And it is comprised so that the collision with a media press and a head may be prevented by the detection in this detection part.
- the rotation angle of the media press cannot be accurately detected depending on the state of the connecting portion (for example, the degree of thickness).
- the media press and the head may collide.
- the apparatus described in Patent Document 2 also includes a pressing member that presses both edges in the width direction of the recording medium, and a detection unit that detects the rotation angle of each pressing member. And it is comprised so that the collision with a pressing member and a head may be prevented by the detection in this detection part. However, depending on the positional relationship between the coupling portion of the recording medium and the rotation shaft of each pressing member, the pressing member may jump up, and as a result, the pressing member and the head may collide.
- the head subjected to the collision may have a problem that affects ink ejection accurately. In this case, It was difficult or impossible to resume printing.
- An object of the present invention is to reliably prevent the printing unit from colliding with the displaced pressing unit when the first pressing unit or the second pressing unit is displaced, and thereafter the printing unit performs a printing operation. It is an object of the present invention to provide a printing apparatus, a printing method, and a control apparatus that can be restarted quickly.
- the printing apparatus of the present invention includes a transport unit that transports a strip-shaped recording medium in the longitudinal direction of the recording medium, a printing unit that performs printing on the recording medium while moving in the width direction of the recording medium, A first pressing portion for pressing one side in the width direction of the recording medium; A second pressing portion for pressing the other side in the width direction of the recording medium; A detection unit for detecting the vertical displacement of the first pressing unit and the vertical displacement of the second pressing unit, respectively.
- the printing unit moves differently when the displacement of the first pressing unit by the detection unit is detected and when the displacement of the second pressing unit by the detection unit is detected.
- the detection unit can also detect that the displaced pressing unit has returned to its original state, and the printing operation of the printing unit can be restarted quickly after this detection.
- the detection unit may assume that the first pressing unit is displaced in the vertical direction when the displacement amount of the first pressing unit exceeds a threshold value.
- the displacement amount exceeds a threshold value, it is preferable that the second pressing portion is displaced in the vertical direction.
- each of the first pressing portion and the second pressing portion has a plate piece that is cantilevered, It is preferable that the detection unit detects a displacement of an end portion on the free end side of the plate piece.
- the end on the free end side of the plate piece is the portion with the largest displacement amount in each pressing part, so that the detection of the displacement of each pressing part becomes easy and reliable.
- the detection unit may be a reflective type disposed at an end portion on the free end side of the plate piece or opposed to an end portion on the free end side of the plate piece. It is preferable to have an optical sensor.
- the detection unit has a reflection unit that reflects light from the optical sensor,
- the optical sensor is disposed at an end portion on the free end side of the plate piece, It is preferable that the reflection part is provided over a range from above the first pressing part to above the second pressing part.
- the printing unit may include a first movement limit position that is a movement limit on the first pressing unit side, and a second movement limit position that is a movement limit on the second pressing unit side.
- Can move between and The movement range in which the printing unit can move includes the first movement limit position, the first region up to the top of the first pressing unit, and the second pressing unit from above the first pressing unit. It is preferable to divide the area into a second area up to above and a third area from above the second pressing portion to the second movement limit position.
- the printing unit when the displacement of the first pressing unit is detected in a state where the printing unit is located in the second region, the printing unit stops the printing and waits in the second region. Or move to the third region.
- the transport unit when the printing unit waits in the second region or moves to the third region, the transport unit returns the first pressing unit to the original state before displacement. It is preferable to carry the recording medium until it returns.
- the first pressing portion can surely return to the original state before the displacement, and the printing portion can be moved thereafter.
- the printing is resumed when the recording medium is conveyed by the conveyance unit until the first pressing unit returns to the original state before displacement.
- the conveyance unit conveys the recording medium until the one pressing unit returns to the original state before displacement. preferable.
- one pressing part can surely return to the original state before the displacement, and the printing part can be moved thereafter.
- the printing is resumed when the recording medium is conveyed by the conveyance unit until the one pressing unit returns to the original state before the displacement.
- the printing unit when the displacement of the second pressing unit is detected in a state where the printing unit is positioned in the second region, the printing unit stops and moves to the first region. It is preferable to do this.
- the conveyance unit conveys the recording medium until the second pressing unit returns to the original state before the displacement. Is preferred.
- the second pressing portion can surely return to the original state before the displacement, and the printing portion can be moved thereafter.
- the printing is resumed when the recording medium is conveyed by the conveyance unit until the second pressing unit returns to the original state before displacement.
- the transport unit transports the recording medium until the one pressing unit returns to the original state before displacement. preferable.
- one pressing part can surely return to the original state before the displacement, and the printing part can be moved thereafter.
- the printing is resumed when the recording medium is conveyed by the conveyance unit until the one pressing unit returns to the original state before the displacement.
- the printing method of the present invention is characterized in that printing is performed on a recording medium using the printing apparatus of the present invention.
- the detection unit can also detect that the displaced pressing unit has returned to its original state, and the printing operation of the printing unit can be restarted quickly after this detection.
- the control device of the present invention is a control device for controlling the printing device of the present invention,
- the printing unit is controlled to move differently when the displacement of the first pressing unit is detected and when the displacement of the second pressing unit is detected.
- the detection unit can also detect that the displaced pressing unit has returned to the original state, and the printing operation of the printing unit can be restarted quickly after this detection.
- FIG. 1 is a side view showing an embodiment of a printing apparatus of the present invention.
- FIG. 2 is a block diagram of a main part of the printing apparatus shown in FIG. 3 is a view as seen from the direction of arrow A in FIG. 4 is a view as seen from the direction of arrow B in FIG.
- FIG. 5 is a diagram illustrating a state in which the first pressing portion is displaced from the state illustrated in FIG. 4.
- FIG. 6 is a diagram sequentially illustrating a first operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 7 is a diagram sequentially illustrating a first operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 8 is a diagram sequentially illustrating a first operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 1 is a side view showing an embodiment of a printing apparatus of the present invention.
- FIG. 2 is a block diagram of a main part of the printing apparatus shown in FIG. 3 is a view as seen from the direction of arrow A in FIG. 4
- FIG. 9 is a diagram sequentially illustrating a first operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 10 is a diagram sequentially illustrating a second operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 11 is a diagram sequentially illustrating a second operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 12 is a diagram sequentially illustrating a second operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 13 is a diagram sequentially illustrating a third operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 14 is a diagram illustrating a third operation pattern of the printing apparatus illustrated in FIG. 1 in order.
- FIG. 15 is a diagram illustrating a third operation pattern of the printing apparatus illustrated in FIG. 1 in order.
- FIG. 16 is a diagram illustrating a third operation pattern of the printing apparatus illustrated in FIG. 1 in order.
- FIG. 17 is a diagram sequentially illustrating a fourth operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 18 is a diagram sequentially illustrating a fourth operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 19 is a diagram sequentially illustrating a fourth operation pattern of the printing apparatus illustrated in FIG. 1.
- FIG. 20 is a diagram showing a second embodiment of the printing apparatus of the present invention.
- FIG. 1 is a side view showing an embodiment of a printing apparatus of the present invention.
- FIG. 2 is a block diagram of a main part of the printing apparatus shown in FIG. 3 is a view as seen from the direction of arrow A in FIG. 4 is a view as seen from the direction of arrow B in FIG.
- FIG. 5 is a diagram illustrating a state in which the first pressing portion is displaced from the state illustrated in FIG. 4.
- 6 to 9 are diagrams sequentially illustrating a first operation pattern of the printing apparatus illustrated in FIG. 10 to 12 are diagrams sequentially illustrating a second operation pattern of the printing apparatus illustrated in FIG. 13 to 16 are diagrams sequentially illustrating a third operation pattern of the printing apparatus illustrated in FIG.
- FIGS. 17 to 19 are diagrams sequentially illustrating a fourth operation pattern of the printing apparatus illustrated in FIG.
- the depth direction in FIG. 1 is referred to as “X direction”, the left-right direction as “Y direction”, and the up-down direction as “Z direction”.
- the coordinate axes in FIGS. 3 to 19 correspond to the coordinate axes in FIG.
- the printing apparatus 1 of the present invention is a textile printing apparatus that performs printing on a work W while conveying the work W as a recording medium, and can execute the printing method of the present invention.
- the printing apparatus 1 includes a machine base 11, a transport unit 12 that transports a work W, a printing unit 13 that applies ink to the work W and performs printing, and a printing unit 13.
- a moving unit 14 for moving the ink a drying unit 16 for drying the ink on the workpiece W, an input operation unit 18 for inputting and setting various conditions during printing, and a control unit for controlling the operation of each unit. (Control device of the present invention) 15.
- the control unit 15 is electrically connected to the external power supply source 200.
- the direction orthogonal to the conveyance direction for conveying the workpiece W is the X direction
- the direction parallel to the conveyance direction is the Y direction
- the direction orthogonal to the X direction and the Y direction is the Z direction.
- the transport unit 12 is disposed on a feeding device 3 that feeds out a work W having a long belt shape wound in a roll shape, a winding device 4 that winds up a printed work W, and a machine base 11. And a support device 5 that supports the workpiece W during printing.
- the feeding device 3 is disposed upstream of the machine base 11 in the work W feeding direction (Y direction).
- the feeding device 3 includes a feeding roller (feeding reel) 31 that feeds the workpiece W in a roll shape, and a tensioner 32 that tensions the workpiece W between the feeding roller 31 and the support device 5. And have.
- the feed roller 31 is connected to a motor (not shown) and can be rotated by the operation of the motor.
- a thin film-like sheet having ink absorbability and a thin film-like sheet having ink non-absorbability can be used.
- special paper for inkjet recording such as plain paper, high-quality paper, and glossy paper, woven fabric, fabric, and the like can be given.
- a plastic film that is not surface-treated for inkjet printing that is, an ink absorbing layer is not formed
- a plastic film coated with a plastic on a substrate such as paper or the like
- the plastic is not particularly limited, and examples thereof include polyvinyl chloride, polyethylene terephthalate, polycarbonate, polystyrene, polyurethane, polyethylene, and polypropylene.
- the winding device 4 is disposed downstream of the machine base 11 in the feeding direction (Y direction) of the workpiece W with respect to the feeding device 3.
- the winding device 4 includes a winding roller (winding reel) 41 that winds the workpiece W in a roll shape, and tensioners 42, 43, and 44 that apply tension to the workpiece W between the winding roller 41 and the support device 5. have.
- the winding roller 41 is connected to a motor (not shown), and can be rotated by the operation of the motor.
- the tensioners 42 to 44 are arranged at intervals in this order in the direction away from the winding roller 41.
- the support device 5 is disposed between the feeding device 3 and the winding device 4.
- the support device 5 includes a main driving roller 51 and a driven roller 52 that are arranged apart from each other in the Y direction, an endless belt (belt) 53 that is stretched between the main driving roller 51 and the driven roller 52, and the main driving roller 51 and the driven roller.
- Tensioners 54 and 55 for applying tension to the workpiece W with the roller 52 are provided.
- the main driving roller 51 is connected to a motor (not shown) and can be rotated by the operation of the motor. Further, the driven roller 52 is transmitted with the rotational force of the main driving roller 51 via the endless belt 53, and can rotate in conjunction with the main driving roller 51.
- the endless belt 53 is a glue belt in which an adhesive layer having adhesiveness is formed on the front surface. A part of the workpiece W is adhered and fixed to the adhesive layer and conveyed in the longitudinal direction of the workpiece W, that is, in the Y direction. During this conveyance, the workpiece W is stably printed. Further, after printing is performed, the workpiece W is peeled from the endless belt 53.
- the tensioners 54 and 55 are also arranged apart from each other in the Y direction.
- the tensioner 54 can sandwich the workpiece W with the endless belt 53 between the main driving roller 51, and the tensioner 55 can sandwich the workpiece W with the endless belt 53 between the driven roller 52.
- the workpiece W tensioned by the tensioners 54 and 55 is fixed to the endless belt 53 and conveyed while the tension is applied. In such a state, the work W is prevented from wrinkling or the like during conveyance, so that when printing is performed, the printing becomes accurate and high quality.
- the printing unit 13 can eject ink as droplets D onto the workpiece W being conveyed by the conveying unit 12 (see FIG. 3). As a result, the droplets D land on the workpiece W, and thus drawing (recording) by printing is performed on the workpiece W.
- the ink contains a dye or pigment as a colorant in water as a solvent, and in this embodiment, four colors of black (K), cyan (C), magenta (M), and yellow (Y) are used. Is used.
- the printing unit 13 includes a carriage unit 131 having a plurality of inkjet heads (ink discharge heads) divided for each ink color.
- the workpiece W fed by the feeding device 3 is intermittently fed (sub-scanned) in the Y direction in a fixed state in which the work W is adhesively fixed by the endless belt 53, and the carriage unit 131 is moved relative to the fixed workpiece W.
- the ink is ejected from the carriage unit 131 while reciprocating (main scanning) in the X direction (the width direction of the workpiece W). This can be performed until printing is completed and an image is formed on the workpiece W.
- the obtained image may be obtained by multicolor printing (color printing) or may be obtained by single color printing.
- the moving unit 14 supports the printing unit 13 so as to be movable along the X direction during printing. Thereby, the printing part 13 can reciprocate so that it may straddle on the workpiece
- the moving unit 14 includes a drive source 141 that moves the printing unit 13 and a frame 142 that extends along the X direction and supports the drive source 141.
- the drive source 141 has, for example, a configuration having a ball screw and a linear guide.
- the frame 142 includes a back plate 143 erected in the Z direction and a top plate 144 protruding from the back plate 143 to the X direction negative side.
- the printing unit 13 (carriage unit 131) includes a first movement limit position LT1 that is a movement limit on the first pressing unit 2A side and a second movement limit that is a movement limit on the second pressing unit 2B side. It is possible to move between the positions LT2.
- the first movement limit position LT1 is the home position (normal standby position) of the printing unit 13.
- the movement range A0 in which the printing unit 13 can move between the first movement limit position LT1 and the second movement limit position LT2 is between the first movement limit position LT1 and the first pressing unit 2A.
- the first region A1 up to the upper side, the second region A2 from above the first pressing part 2A to the upper side of the second pressing part 2B, and the second movement limit from above the second pressing part 2B It can be divided into a third area A3 up to the position LT2.
- the drying unit 16 is disposed downstream of the printing unit 13 in the conveyance direction of the workpiece W and is disposed between the support device 5 and the winding roller 41 of the winding device 4.
- the drying unit 16 has a chamber 161 in which a heater is built. Thereby, when the workpiece
- a tensioner 42 and a tensioner 43 are disposed on both sides in the Y direction via the drying unit 16. As a result, the workpiece W can pass through the chamber 161 in a tensioned state. In such a state, the workpiece W is prevented from wrinkling, for example, during passage, and thus the ink W can be reliably dried.
- the input operation unit 18 is composed of, for example, a touch panel. An operator who is an operator of the printing apparatus 1 can input various conditions during printing via the input operation unit 18. Various conditions are not particularly limited, and examples thereof include a printing program, a conveyance speed and a thickness of the workpiece W.
- the input operation unit 18 also serves as a display unit that displays information on the printing apparatus 1.
- the control unit 15 is electrically connected to the transport unit 12, the printing unit 13, the moving unit 14, the drying unit 16, the detection unit 6, and the input operation unit 18, and has a function of controlling these operations. Yes. As illustrated in FIG. 2, the control unit 15 includes a CPU (Central Processing Unit) 151 and a storage unit 152.
- CPU Central Processing Unit
- the CPU 151 executes programs for various processes such as the print process as described above.
- the storage unit 152 includes, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory) which is a kind of nonvolatile semiconductor memory, and can store various programs.
- EEPROM Electrically Erasable Programmable Read-Only Memory
- the external power supply source 200 that applies a voltage of, for example, 200 V is electrically connected to the control unit 15. Thereby, power is supplied to each unit of the printing apparatus 1.
- the frame 142 is provided with the first pressing portion 2A for pressing the edge portion W1 of the workpiece W and the second pressing portion 2B for pressing the edge portion W2 of the workpiece W (see FIG. 3). ). Since the 1st press part 2A and the 2nd press part 2B are the same structures except that arrangement
- the first pressing portion 2A is formed by bending a long plate piece, and its end is cantilevered.
- the first pressing portion 2A is supported with and fixed to the back plate 143 of the frame 142, the abutting portion 22 that abuts on the edge W1 of the workpiece W, and the inclining portion 22 with respect to the abutting portion 22. And an inclined portion 23.
- suppressing parts are comprised with the stainless steel which has elasticity.
- the fixing portion 21 is fixed to the back plate 143 of the frame 142 via, for example, a bolt (not shown).
- the abutting portion 22 extends from the lower end portion of the fixed portion 21 toward the Y direction positive side. And this contact part 22 can contact
- the inclined portion 23 is a portion extending further from the contact portion 22 toward the positive side in the Y direction.
- the inclined portion 23 is inclined with respect to the contact portion 22 and is separated from the work W on the endless belt 53.
- the workpiece W is formed by joining (joining) a plurality of fabrics, and a joining portion W ⁇ b> 3 is formed. And each junction part W3 is thicker than the part before and behind that.
- the first pressing portion 2A and the second pressing portion 2B may get over the joint portion W3 during conveyance of the workpiece W, and in this case, the contact portion 22 is lifted from the workpiece W, that is, in a bent state. It becomes.
- the printing unit 13 moving in the X direction collides with the contact unit 22.
- deformation or breakage due to the collision may occur in the printing unit 13 or the contact unit 22, which makes it difficult or impossible to continue printing. Therefore, the printing apparatus 1 has a configuration effective for eliminating such a phenomenon.
- this configuration will be described.
- the printing apparatus 1 includes a detection unit 6 that detects the vertical displacement of the first pressing unit 2A and the vertical displacement of the second pressing unit 2B.
- the detection unit 6 is electrically connected to the control unit 15 (see FIG. 2).
- the detection unit 6 includes a first optical sensor 61A, a first reflection member (reflection unit) 62A, a second optical sensor 61B, and a second reflection member (reflection unit) 62B. .
- the first reflecting member 62 ⁇ / b> A is arranged and fixed on the free end side as much as possible of the contact portion 22 of the first pressing portion 2 ⁇ / b> A, that is, a portion close to the inclined portion 23.
- the first optical sensor 61A is a reflective optical sensor, and is disposed and fixed on the top plate 144 of the frame 142 so as to face the first reflecting member 62A.
- the emitted light L1 emitted from the first optical sensor 61A is reflected by the first reflecting member 62A, received by the first optical sensor 61A as reflected light L2, and built in the first optical sensor 61A.
- An image is formed on the light receiving element.
- This imaging position differs depending on the distance M (see FIGS. 4 and 5) between the first optical sensor 61A and the first reflecting member 62A.
- the distance M detected based on the imaging position can be set as the amount of vertical displacement of the contact portion 22 of the first pressing portion 2A.
- the detection location for detecting the vertical displacement of the first pressing portion 2A is a portion as close as possible to the free end side of the abutting portion 22 because the portion is in the first pressing portion 2A. This is because the displacement is easily and surely detected because the displacement is the largest.
- the second reflecting member 62B is disposed and fixed as close as possible to the free end side of the contact portion 22 of the second pressing portion 2B.
- the second optical sensor 61B is also a reflective optical sensor, and is arranged and fixed on the top plate 144 of the frame 142 so as to face the second reflecting member 62B.
- the principle of detecting the vertical displacement of the second pressing portion 2B is the same as the principle of detecting the vertical displacement of the first pressing portion 2A described above.
- the printing apparatus 1 includes the detection result of the detection unit 6, the position of the printing unit 13, that is, the position information of where the printing unit 13 is located from the first area A1 to the third area A3. Depending on, four operation patterns can be executed. Note that the position information of the printing unit 13 is obtained from, for example, an encoder built in the drive source 141 that moves the printing unit 13.
- the first operation pattern among the four operation patterns is the first operation pattern shown in FIGS.
- the second operation pattern is the second operation pattern shown in FIGS.
- the third operation pattern is the third operation pattern shown in FIGS.
- the fourth operation pattern is the fourth operation pattern shown in FIGS.
- Each operation pattern is switched by the CPU 151 of the control unit 15, and a program for executing each operation pattern is stored in the storage unit 152 of the control unit 15 in advance.
- the printing unit 13 is located in the second area A ⁇ b> 2 and performs printing by discharging droplets D onto the workpiece W being conveyed.
- the first pressing portion 2A is pressed and displaced upward by the joint portion W3 of the workpiece W. This displacement is detected by the first optical sensor 61A (detector 6).
- the ejection of the droplet D from the printing part 13 is stopped, that is, the printing is stopped. Further, the movement of the printing unit 13 in the second area A2 is also stopped, and the printing unit 13 is made to stand by in the second area A2 as it is. In addition to making the printing unit 13 stand by in the second region A2, the printing unit 13 may be moved to the third region A3 (see the printing unit 13 indicated by a two-dot chain line in FIG. 7). . Further, the conveyance of the workpiece W is preferably stopped, but may be continued.
- the work W is transported by the transport unit 12 from the state shown in FIG.
- the first pressing portion 2A can eventually get over the joint W3 that causes the displacement, and as a result, returns to the original state before the displacement. Further, this displacement, that is, the displacement due to returning to the original state is also detected by the first optical sensor 61A.
- the printing unit 13 is located in the first area A1 and is about to start printing.
- the first pressing portion 2A is pressed and displaced upward by the joint portion W3 of the workpiece W. This displacement is detected by the first optical sensor 61A. And if the displacement of the 1st holding
- the first pressing portion 2A can eventually get over the joint W3 that causes the displacement, and as a result, returns to the original state before the displacement.
- This displacement is also detected by the first optical sensor 61A.
- the printing unit 13 is moved into the second area A2 as shown in FIG. 12, and printing is resumed.
- Such a second operation pattern allows the printing unit 13 to wait in the first region A1 when the first pressing unit 2A is displaced. Thereby, it is possible to reliably prevent the printing unit 13 from colliding with the displaced first pressing unit 2A. Further, after the collision avoidance, when the first pressing unit 2A is restored to the original state, the printing by the printing unit 13 can be resumed quickly.
- the second operation pattern is an operation pattern when the first pressing portion 2A is displaced, but a similar operation pattern can also be obtained when the second pressing portion 2B is displaced. .
- the printing unit 13 is located in the second area A ⁇ b> 2 and performs printing by discharging droplets D onto the workpiece W being conveyed.
- the second pressing portion 2B is pressed and displaced upward by the joint portion W3 of the workpiece W. This displacement is detected by the second optical sensor 61B (detector 6).
- the printing by the printing unit 13 is stopped as shown in FIG. Further, the printing unit 13 is moved to the first area A1. Further, the conveyance of the workpiece W is preferably stopped, but may be continued.
- the work W is transported by the transport unit 12 from the state shown in FIG.
- the second pressing portion 2B can eventually get over the joint portion W3 causing the displacement, and as a result, returns to the original state before the displacement. Further, this displacement, that is, the displacement due to returning to the original state is also detected by the second optical sensor 61B.
- the printing unit 13 is located in the third area A3, and further moves to the second area A2 to continue printing.
- the second pressing portion 2B is pressed and displaced upward by the joint portion W3 of the workpiece W. This displacement is detected by the second optical sensor 61B. And if the displacement of the 2nd holding
- the second pressing portion 2B can eventually get over the joint portion W3 that causes the displacement, and as a result, returns to the original state before the displacement.
- This displacement is also detected by the second optical sensor 61B.
- Such a fourth operation pattern allows the printing unit 13 to wait in the third region A3 when the second pressing unit 2B is displaced. Thereby, it is possible to reliably prevent the printing unit 13 from colliding with the displaced second pressing unit 2B. Further, after the collision is avoided, when the second pressing portion 2B is restored to the original state, printing by the printing unit 13 can be resumed quickly.
- the fourth operation pattern is an operation pattern when the second pressing portion 2B is displaced, but the same operation pattern can also be obtained when the first pressing portion 2A is displaced. .
- the printing unit 13 detects when the detection unit 6 detects the displacement of the first pressing unit 2 ⁇ / b> A and when the detection unit 6 detects the displacement of the second pressing unit 2 ⁇ / b> B. And move differently, that is, the moving direction (destination) is different. Note that “standby (stop)” is also included in one mode of movement with the movement amount being zero.
- the printing unit 13 collides with the displaced pressing unit when the first pressing unit 2A is displaced or when the second pressing unit 2B is displaced. Can be surely prevented. Further, the subsequent printing operation of the printing unit can be resumed quickly.
- the printing unit 13 By determining whether or not there is displacement based on the first threshold and the second threshold, it is possible to prevent the printing unit 13 from stopping unintentionally (unnecessarily).
- the first threshold value and the second threshold value are obtained in advance as design values or experimentally, and are stored in the storage unit 152.
- FIG. 20 is a diagram showing a second embodiment of the printing apparatus of the present invention.
- This embodiment is the same as the first embodiment except that the arrangement location of the optical sensor and the reflection portion is different.
- the first optical sensor 61A is arranged and fixed as close to the free end side as possible of the contact portion 22 of the first pressing portion 2A.
- the second optical sensor 61B is disposed and fixed as close to the free end side as possible of the contact portion 22 of the second pressing portion 2B.
- the reflection member 63 covers the top of the frame 142 over a range (second region A2) from above the contact portion 22 of the first pressing portion 2A to above the contact portion 22 of the second pressing portion 2B. It is provided on the plate 144. Thereby, the first optical sensor 61A and the second optical sensor 61B share one reflecting member 63, and therefore, the number of parts can be suppressed.
- the printing apparatus, the printing method, and the control apparatus according to the present invention have been described with respect to the illustrated embodiment.
- Each part constituting the printing apparatus and the control apparatus can be replaced with an arbitrary structure that can exhibit the same function.
- arbitrary components may be added.
- the printing apparatus, the printing method, and the control apparatus of the present invention may be a combination of any two or more configurations (features) of the above embodiments.
- the detection unit is a so-called “non-contact type” sensor in each of the above embodiments, but is not limited thereto, and may be a “contact type” sensor, for example.
- First optical sensor 61B ... Second optical sensor, 62A ... First reflection member (reflection unit), 62B ... second reflecting member (reflecting part), 63 ... reflecting member, 11 ... machine base, 12 ... conveying part, 13 ... printing part, 131 ... carriage unit, 14 ... moving part, 141 ... driving source, 142 ... flexing 143 ... back plate, 144 ... top plate, 15 ... control unit, 151 ... CPU (Central Processing Unit), 152 ... storage unit, 16 ... drying unit, 161 ... chamber, 18 ... input operation unit, 200 ... external power Supply source, A0 ... moving range, A1 ... first region, A2 ... second region, A3 ... third region, D ...
- A0 ... moving range A1 ... first region, A2 ... second region, A3 ... third region, D ...
- droplet L1 ... emitted light, L2 ... reflected light, LT1 ... first movement Limit position, LT2 ... second movement limit position, M ... distance, W ... workpiece, W1 ... edge, W2 ... edge, W3 ... joint
Abstract
Description
本発明の印刷装置は、帯状の記録媒体を、該記録媒体の長手方向に搬送する搬送部と、 前記記録媒体の幅方向に移動しつつ、該記録媒体上に印刷を施す印刷部と、
前記記録媒体の幅方向の一方側を押さえる第1の押さえ部と、
前記記録媒体の幅方向の他方側を押さえる第2の押さえ部と、
前記第1の押さえ部の上下方向の変位と、前記第2の押さえ部の上下方向の変位とをそれぞれ検出する検出部と、を備え、
前記印刷部は、前記検出部による前記第1の押さえ部の変位が検出されたときと、前記検出部による前記第2の押さえ部の変位が検出されたときとで、異なる移動をすることを特徴とする。
前記検出部は、前記板片の自由端側の端部の変位を検出するのが好ましい。
前記光学センサーは、前記板片の自由端側の端部に配置されており、
前記反射部は、前記第1の押さえ部の上方から前記第2の押さえ部の上方までの範囲にわたって設けられているのが好ましい。
前記印刷部が移動可能な移動範囲は、前記第1の移動限界位置と前記第1の押さえ部の上方までの第1の領域と、前記第1の押さえ部の上方から前記第2の押さえ部の上方までの第2の領域と、前記第2の押さえ部の上方から前記第2の移動限界位置までの第3の領域とに分けられるのが好ましい。
前記第1の押さえ部の変位が検出されたときと、前記第2の押さえ部の変位が検出されたときとで、前記印刷部に異なる移動をさせるよう制御することを特徴とする。
図1は、本発明の印刷装置の実施形態を示す側面図である。図2は、図1に示す印刷装置の主要部のブロック図である。図3は、図1中の矢印A方向から見た図である。図4は、図3中の矢印B方向から見た図である。図5は、図4に示す状態から第1の押さえ部が変位した状態を示す図である。図6~図9は、それぞれ、図1に示す印刷装置の第1の動作パターンを順に示す図である。図10~図12は、それぞれ、図1に示す印刷装置の第2の動作パターンを順に示す図である。図13~図16は、それぞれ、図1に示す印刷装置の第3の動作パターンを順に示す図である。図17~図19は、それぞれ、図1に示す印刷装置の第4の動作パターンを順に示す図である。なお、以下では、説明の都合上、図1中の紙面奥行き方向を「X方向」、左右方向を「Y方向」、上下方向を「Z方向」と言う。また、図3~図19(図20も同様)中の座標軸は、それぞれ、図1中の座標軸と対応している。
フレーム142は、本実施形態では、Z方向に立設した背板143と、背板143からX方向負側に突出した天板144とを有している。
記憶部152は、例えば不揮発性半導体メモリーの一種であるEEPROM(Electrically Erasable Programmable Read-Only Memory)等を有し、各種プログラム等を記憶することができる。
図6に示す状態では、印刷部13は、第2の領域A2に位置しており、搬送中のワークW上に液滴Dを吐出して印刷を行なっている。また、第1の押さえ部2Aは、ワークWの接合部W3によって上方に向かって押圧されて変位している。この変位は、第1の光学センサー61A(検出部6)によって検出される。
図10に示す状態では、印刷部13は、第1の領域A1に位置しており、これから印刷を開始しようとしている。また、第1の押さえ部2Aは、ワークWの接合部W3によって上方に向かって押圧されて変位している。この変位は、第1の光学センサー61Aによって検出される。そして、第1の押さえ部2Aの変位が検出されたならば、印刷部13をそのまま第1の領域A1で待機させる。
図13に示す状態では、印刷部13は、第2の領域A2に位置しており、搬送中のワークW上に液滴Dを吐出して印刷を行なっている。また、第2の押さえ部2Bは、ワークWの接合部W3によって上方に向かって押圧されて変位している。この変位は、第2の光学センサー61B(検出部6)によって検出される。
図17に示す状態では、印刷部13は、第3の領域A3に位置しており、さらに第2の領域A2に移動して印刷を継続しようとしている。また、第2の押さえ部2Bは、ワークWの接合部W3によって上方に向かって押圧されて変位している。この変位は、第2の光学センサー61Bによって検出される。そして、第2の押さえ部2Bの変位が検出されたならば、印刷部13をそのまま第3の領域A3で待機させる。
図20は、本発明の印刷装置の第2実施形態を示す図である。
Claims (20)
- 帯状の記録媒体を、該記録媒体の長手方向に搬送する搬送部と、
前記記録媒体の幅方向に移動しつつ、該記録媒体上に印刷を施す印刷部と、
前記記録媒体の幅方向の一方側を押さえる第1の押さえ部と、
前記記録媒体の幅方向の他方側を押さえる第2の押さえ部と、
前記第1の押さえ部の上下方向の変位と、前記第2の押さえ部の上下方向の変位とをそれぞれ検出する検出部と、を備え、
前記印刷部は、前記検出部による前記第1の押さえ部の変位が検出されたときと、前記検出部による前記第2の押さえ部の変位が検出されたときとで、異なる移動をすることを特徴とする印刷装置。 - 前記検出部は、前記第1の押さえ部の変位量が閾値を超えた場合に、前記第1の押さえ部が上下方向に変位したとし、前記第2の押さえ部の変位量が閾値を超えた場合に、前記第2の押さえ部が上下方向に変位したとする請求項1に記載の印刷装置。
- 前記第1の押さえ部および前記第2の押さえ部は、それぞれ、片持支持された板片を有し、
前記検出部は、前記板片の自由端側の端部の変位を検出する請求項1または2に記載の印刷装置。 - 前記検出部は、前記板片の自由端側の端部に配置されているか、または、前記板片の自由端側の端部に対向して配置された反射型の光学センサーを有する請求項3に記載の印刷装置。
- 前記検出部は、前記光学センサーからの光を反射する反射部を有し、
前記光学センサーは、前記板片の自由端側の端部に配置されており、
前記反射部は、前記第1の押さえ部の上方から前記第2の押さえ部の上方までの範囲にわたって設けられている請求項4に記載の印刷装置。 - 前記印刷部は、前記第1の押さえ部側で移動限界となる第1の移動限界位置と、前記第2の押さえ部側で移動限界となる第2の移動限界位置との間を移動可能であり、
前記印刷部が移動可能な移動範囲は、前記第1の移動限界位置と前記第1の押さえ部の上方までの第1の領域と、前記第1の押さえ部の上方から前記第2の押さえ部の上方までの第2の領域と、前記第2の押さえ部の上方から前記第2の移動限界位置までの第3の領域とに分けられる請求項1ないし5のいずれか1項に記載の印刷装置。 - 前記印刷部は、前記第2の領域に位置した状態で前記第1の押さえ部の変位が検出された場合、前記印刷を停止するとともに、前記第2の領域で待機するかまたは前記第3の領域まで移動する請求項6に記載の印刷装置。
- 前記印刷部が前記第2の領域で待機するかまたは前記第3の領域まで移動した場合、前記搬送部は、前記第1の押さえ部が変位前の元の状態に戻るまで前記記録媒体の搬送を行なう請求項7に記載の印刷装置。
- 前記第1の押さえ部が変位前の元の状態に戻るまで前記搬送部による前記記録媒体の搬送を行なった場合、前記印刷を再開する請求項8に記載の印刷装置。
- 前記印刷部は、前記第1の領域に位置した状態で前記第1の押さえ部および前記第2の押さえ部のうちの一方の押さえ部の変位が検出された場合、前記第1の領域で待機する請求項6ないし9のいずれか1項に記載の印刷装置。
- 前記印刷部が前記第1の領域で待機した場合、前記搬送部は、前記一方の押さえ部が変位前の元の状態に戻るまで前記記録媒体の搬送を行なう請求項10に記載の印刷装置。
- 前記一方の押さえ部が変位前の元の状態に戻るまで前記搬送部による前記記録媒体の搬送を行なった場合、前記印刷を再開する請求項11に記載の印刷装置。
- 前記印刷部は、前記第2の領域に位置した状態で前記第2の押さえ部の変位が検出された場合、前記印刷を停止するとともに、前記第1の領域まで移動する請求項6ないし12のいずれか1項に記載の印刷装置。
- 前記印刷部が前記第1の領域まで移動した場合、前記搬送部は、前記第2の押さえ部が変位前の元の状態に戻るまで前記記録媒体の搬送を行なう請求項13に記載の印刷装置。
- 前記第2の押さえ部が変位前の元の状態に戻るまで前記搬送部による前記記録媒体の搬送を行なった場合、前記印刷を再開する請求項14に記載の印刷装置。
- 前記印刷部は、前記第3の領域に位置した状態で前記第1の押さえ部および前記第2の押さえ部のうちの一方の押さえ部の変位が検出された場合、前記第3の領域で待機する請求項6ないし15のいずれか1項に記載の印刷装置。
- 前記印刷部が前記第3の領域で待機した場合、前記搬送部は、前記一方の押さえ部が変位前の元の状態に戻るまで前記記録媒体の搬送を行なう請求項16に記載の印刷装置。
- 前記一方の押さえ部が変位前の元の状態に戻るまで前記搬送部による前記記録媒体の搬送を行なった場合、前記印刷を再開する請求項17に記載の印刷装置。
- 請求項1ないし18のいずれか1項に記載の印刷装置を用いて記録媒体上に印刷を施すことを特徴とする印刷方法。
- 請求項1ないし18のいずれか1項に記載の印刷装置を制御する制御装置であって、
前記第1の押さえ部の変位が検出されたときと、前記第2の押さえ部の変位が検出されたときとで、前記印刷部に異なる移動をさせるよう制御することを特徴とする制御装置。
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EP16883692.2A EP3401108B1 (en) | 2016-01-05 | 2016-11-14 | Printing apparatus, printing method, and control apparatus |
BR112018013868-1A BR112018013868A2 (ja) | 2016-01-05 | 2016-11-14 | A printer, a printing method, and a control device |
US16/067,848 US10464355B2 (en) | 2016-01-05 | 2016-11-14 | Printing apparatus, printing method, and control apparatus |
JP2017560040A JP6597800B2 (ja) | 2016-01-05 | 2016-11-14 | 印刷装置、印刷方法および制御装置 |
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