WO2017193605A1 - 墨水测量系统及打印设备 - Google Patents

墨水测量系统及打印设备 Download PDF

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Publication number
WO2017193605A1
WO2017193605A1 PCT/CN2017/000036 CN2017000036W WO2017193605A1 WO 2017193605 A1 WO2017193605 A1 WO 2017193605A1 CN 2017000036 W CN2017000036 W CN 2017000036W WO 2017193605 A1 WO2017193605 A1 WO 2017193605A1
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WO
WIPO (PCT)
Prior art keywords
ink
line
bubble
valve
recovery
Prior art date
Application number
PCT/CN2017/000036
Other languages
English (en)
French (fr)
Inventor
赵德江
Original Assignee
京东方科技集团股份有限公司
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 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/557,245 priority Critical patent/US20180104960A1/en
Publication of WO2017193605A1 publication Critical patent/WO2017193605A1/zh

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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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/195—Ink jet characterised by ink handling for monitoring ink quality
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/125—Sensors, e.g. deflection sensors
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1714—Conditioning of the outside of ink supply systems, e.g. inkjet collector cleaning, ink mist removal
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/19—Ink jet characterised by ink handling for removing air bubbles

Definitions

  • Embodiments of the present disclosure relate to an ink measuring system and a printing apparatus.
  • the inkjet printer was developed after the dot matrix printer, and it adopts a non-impact working mode, which has the characteristics of small size, simple and convenient operation, and low printing noise.
  • Inkjet printing technology can be used to fabricate products such as Organic Light-Emitting Diode (OLED). It has the characteristics of fast, simple process and low cost. Its ink is composed of photoelectric materials and solvents.
  • OLED Organic Light-Emitting Diode
  • An embodiment of the present disclosure provides an ink measuring system including: a measuring cavity provided with an opening, wherein the measuring cavity includes a side wall and a bottom, the bottom is disposed opposite to the opening; At least one suction line; and a filter element disposed inside the measurement chamber.
  • the filter element includes a honeycomb structure.
  • the honeycomb structure is a multi-layer honeycomb structure.
  • the honeycomb structure includes a plurality of honeycomb holes, and at least a portion of the honeycomb holes have a pore diameter of less than 3 micrometers.
  • an ink measuring system further includes an air suction device, wherein the air suction device is disposed outside the measurement cavity and connected to the air suction pipe.
  • an ink measuring system further includes a transparent structure, wherein the transparent structure is disposed on the sidewall around the opening.
  • an ink measuring system further includes a measuring device, wherein the measuring device is disposed outside the transparent structure.
  • the sidewall and the bottom Sealed connection are provided by an embodiment of the present disclosure.
  • an ink measuring system further includes at least one cleaning pipeline, wherein the cleaning pipeline penetrates a sidewall of the measuring cavity.
  • the cleaning line is disposed between the filter element and the opening.
  • an ink measuring system further includes a cleaning device, wherein the cleaning device is disposed outside the measurement cavity and connected to the cleaning pipeline.
  • Embodiments of the present disclosure also provide a printing apparatus including an ink measuring system according to any of the embodiments of the present disclosure.
  • a printing apparatus further includes an ink recovery device, wherein the ink recovery device includes a recovery cavity provided with a recovery hole.
  • the ink recovery device further includes an ink recovery line that penetrates the recovery cavity.
  • a printing apparatus further includes a printing system having a bubble discharging function, the printing system comprising: a liquid storage tank; a spray head; and a liquid inlet pipe connecting the liquid storage tank and the spray head a bubble detecting device disposed outside the bubble detecting point of the liquid inlet pipe; a nozzle valve disposed in the liquid inlet pipe, the nozzle valve being located between the bubble detecting point and the head a bubble discharge line communicating with the inlet line, wherein a connection point of the bubble discharge line and the inlet line is between the bubble detection point and the nozzle valve; a bubble discharging valve in the bubble discharging line.
  • the printing system further includes an ink recovery tank, a gas path pipe, and a recovery line, and the bubble discharge line is in communication with the ink recovery tank, the gas path A first end of the conduit is in communication with the ink recovery tank, a first end of the recovery conduit is in communication with the ink recovery tank, and a second end of the recovery conduit is in communication with the reservoir.
  • a position of the first end of the recovery line is lower than a position of the first end of the gas path pipe.
  • the printing system further includes an ink temporary storage device, an inlet valve, and a pre-discharge pipeline, wherein the inlet valve is disposed in the inlet conduit and Located between the bubble detecting point and the liquid storage tank, the first end of the pre-discharging pipeline communicates with the liquid inlet pipeline through the liquid inlet valve, and the first pre-discharging pipeline Two ends and the ink temporary storage Connected.
  • the liquid inlet line includes a first liquid inlet sub-line and a second liquid inlet sub-line, and the first liquid-in sub-line is located in the storage Between the liquid tank and the liquid inlet valve, the second liquid inlet sub-line is located between the liquid inlet valve and the spray head; the liquid inlet valve is a multi-directional electromagnetic valve configured to communicate with the The first end of the pre-discharge line is connected to the first inlet sub-line or the first end of the pre-discharge line and the second inlet sub-line.
  • the printing system further includes a temporary storage valve, wherein the temporary storage valve is disposed in the pre-discharge pipeline.
  • the printing system further includes an ink temporary storage device, a first temporary storage valve, and a second temporary storage valve, wherein the ink temporary storage device is disposed in the liquid inlet tube a road is located between the bubble detecting point and the liquid storage tank, and the first temporary storage valve is disposed in the liquid inlet pipe and located between the ink temporary storage device and the liquid storage tank
  • the second temporary storage valve is disposed in the liquid inlet conduit and located between the ink temporary storage device and the bubble detection point.
  • the printing system further includes a nozzle joint, and the nozzle joint is disposed in a liquid inlet pipe between the bubble detecting point and the liquid storage tank.
  • the bubble detecting device includes a sound wave bubble detecting device.
  • Figure 1 is a schematic view of an ink measuring system
  • FIG. 2A is a schematic diagram of an ink measuring system according to an embodiment of the present disclosure.
  • FIG. 2B is a second schematic diagram of an ink measuring system according to an embodiment of the present disclosure.
  • FIG. 3 is a partial schematic view of an ink measuring system according to an embodiment of the present disclosure.
  • FIG. 4 is a partial schematic view of an ink measuring system according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of an ink recovery device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a printing system with a bubble discharging function according to an embodiment of the present disclosure.
  • FIG. 7 is a second schematic diagram of a printing system with a bubble discharging function according to an embodiment of the present disclosure
  • FIG. 8 is a third schematic diagram of a printing system with a bubble discharging function according to an embodiment of the present disclosure.
  • FIG. 9 is a fourth schematic diagram of a printing system with a bubble discharging function according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a bubble detecting device in a printing system having a bubble discharging function according to an embodiment of the present disclosure
  • FIG. 11 is a block diagram showing the composition of a printing apparatus according to an embodiment of the present disclosure.
  • inkjet printing technology to produce OLED products has the characteristics of fast, low cost, etc., and the stability of the production process, the accurate measurement of the volume of the ink droplets and the prevention of pollution are all related to the quality of the product.
  • Inkjet printing technology precisely prints ink droplets into each pixel of the design through the print head. This requires that the size and drop point of each ink droplet is very accurate. If the volume of the ink droplets is different, It will cause the thickness of the printed film to be different, which will affect the quality of the product.
  • Figure 1 is a schematic illustration of an ink measurement system 100', as shown in Figure 1, for accuracy
  • the path of the ink droplets often bends, which interferes with normal measurement and affects the accuracy of the measurement.
  • An ink measuring system provided by an embodiment of the present disclosure can improve the measurement accuracy of ink droplets, thereby improving the precision of the printing apparatus; and at the same time preventing ink splashing, thereby reducing equipment contamination.
  • FIG. 2A is a schematic diagram of an ink measuring system according to an embodiment of the present disclosure
  • FIG. 2B is a second schematic diagram of an ink measuring system according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides an ink measuring system 100, including: a measuring cavity 101 provided with an opening 104, the measuring cavity 101 including a sidewall 102 and a bottom 106, a bottom 106 and an opening 104 is oppositely disposed; at least one pumping line 108 runs through the bottom portion 106; and a filter element 110 disposed inside the measuring chamber 101.
  • the top of the measurement chamber 101 is provided with an opening 104, the shape of which includes one of a circle, a rectangle, a regular polygon, or a combination thereof.
  • the opening 104 may also have other shapes, and the disclosure is not limited herein.
  • the size of the opening 104 eg, the diameter of the circular opening, the short side of the rectangular opening, the diameter of the inscribed circle of the regular polygonal opening
  • the size of the showerhead 130 eg, the largest outer diameter of the showerhead 130
  • the sidewall 102 of the measurement cavity 101 includes a cylindrical structure having a cross section including one of a circle, a rectangle, a regular polygon, or a combination thereof.
  • the measurement chamber 101 may be a cylindrical, rectangular parallelepiped or square-shaped cavity.
  • the measurement chamber 101 includes a bottom portion 106 that is disposed opposite the opening 104, that is, the bottom portion 106 is disposed on a side of the measurement chamber 101 that is remote from the opening 104.
  • the side wall 102 and the bottom portion 106 are sealingly connected to prevent ink droplets from leaking out.
  • the bottom 106 can be bonded to the bottom edge of the sidewall 102.
  • the bottom portion 106 and the side wall 102 may also be of unitary construction.
  • the bottom 106 is closer to the center of the center than the top opening 104 such that the ink ejected by the showerhead 130 moves under gravity from the top opening 104 to the bottom 106.
  • the ink measuring system 100 includes three pumping lines 108, each of which extends through the bottom 106 such that the gas path in each of the pumping lines 108 (eg, a venting path) They are in communication with the internal cavity of the measurement chamber 101, respectively.
  • the number of the air suction lines 108 includes but is not limited to the situation shown in FIG. 2A and FIG. 2B, and may be based on actual conditions. The number of pumping lines 108 needs to be selected.
  • At least one through hole may be formed in the bottom portion 106 of the measuring cavity 101, and the same number of the suction lines 108 as the through holes may be fixed to the bottom portion 106 by welding or screwing, etc., and each exhaust pipe is made.
  • the passage 108 penetrates the bottom portion 106 through the through hole.
  • the suction line 108 and the bottom portion 106 of the measurement chamber 101 may be integrally formed by mold processing or the like.
  • the outer wall of each of the suction lines 108 is sealingly connected to the bottom 106 of the measurement chamber 101 to prevent air leakage or ink droplets from leaking out.
  • the filter element 110 includes a honeycomb structure.
  • the filter element 110 of the honeycomb structure can balance the airflow and prevent the ink droplets from being deflected, thereby improving the measurement accuracy.
  • the honeycomb structure can be a multi-layer honeycomb structure.
  • the multi-layer honeycomb structure filter element 110 can further equalize the air flow to prevent the ink droplets from being deflected.
  • the honeycomb structure includes a plurality of honeycomb cells, at least a portion of which has a pore size of less than 3 microns.
  • the structure of the filter element 110 includes, but is not limited to, a honeycomb structure, and may also include other structures that can equalize the airflow or disperse the ink droplets.
  • the ink measuring system 100 further includes an air extracting device 112 disposed outside the measuring cavity 101 and connected to the air exhausting pipe 108.
  • the pumping device 112 can pump the inside of the measuring chamber 101 through the pumping line 108 to form a negative pressure in the measuring chamber 101, thereby forming an air flow from the opening 104 (or the head 130) to the bottom portion 106, so that the ink is made.
  • the droplet moves together with the airflow to prevent the drop path of the ink droplet from being deflected, thereby improving the measurement accuracy.
  • the pumping device 112 is an exhaust fan.
  • the air extraction device 112 can also be disposed in the air extraction line 108.
  • the ink measuring system 100 provided by an embodiment of the present disclosure further includes a transparent structure 114 disposed on the sidewall 102 around the opening 104.
  • the transparent structure 114 is disposed over the top edge of the sidewall 102.
  • the transparent structure 114 can be a cylindrical structure having a cross section including one of a circle, a rectangle, a regular polygon, or a combination thereof.
  • the shape of the transparent structure 114 and the sidewall 102 may be identical.
  • the transparent structure 114 and the side wall 102 may be joined by bonding, screwing or riveting.
  • the transparent structure 114 can be a transparent windshield or a transparent windshield.
  • the transparent structure 114 can function as a wind shield to prevent the path of the drop of the ink droplet from being deflected.
  • the ink measuring system 100 further includes a measuring device 116 disposed outside the transparent structure 114.
  • the measurement device 116 includes an optoelectronic measurement device that can measure data such as volume, velocity, and the like of the ink droplets.
  • the measuring device 116 includes an optical lens, a sensor, and an image processing module. The image information of the ink droplet is acquired by the optical lens and the sensor, and the image processing module processes the image information to obtain parameters such as the volume, speed, and the like of the ink droplet.
  • the measurement device 116 is disposed outside of the transparent structure 114 corresponding to the location of the transparent structure 114, that is, the measurement device 116 can measure the data of the ink drops through the transparent structure 114.
  • the ink measuring system 100 further includes at least one cleaning pipeline 118 that penetrates the sidewall 102 of the measuring cavity 101.
  • the ink measuring system 100 further includes a cleaning device 120 disposed outside the measurement chamber 101 and connected to the cleaning line 118.
  • the cleaning device 120 stores the cleaning liquid, and the cleaning device 120 sends the cleaning liquid into the measuring chamber 101 through the cleaning line 118 to clean the filter element 110 and the suction line 108.
  • the ink measurement system 100 includes two wash lines 118. It should be noted that the number of the cleaning pipelines 118 includes, but is not limited to, the situation shown in FIG. 2A and FIG. 2B, and the cleaning pipelines 118 can be flexibly set according to actual needs.
  • the cleaning line 118 is disposed between the filter element 110 and the opening 104. That is to say, the position of the cleaning liquid outlet of the cleaning line 118 is between the filter element 110 and the opening 104, so that the cleaning liquid enters the filter element 110 and the cleaning line 108 under the action of gravity or air flow, and plays a cleaning role.
  • the cleaning device 120 periodically sprays the cleaning liquid into the measurement chamber 101 through the cleaning line 118.
  • the cleaning device 120 sprays the cleaning liquid into the measurement chamber 101 at regular intervals.
  • FIG. 3 is a partial schematic diagram of an ink measuring system according to an embodiment of the present disclosure
  • FIG. 4 is a partial schematic view of an ink measuring system according to an embodiment of the present disclosure.
  • the air extracting device 112 draws air through the air suction line 108, and the filter element 110 makes the air flow uniform. After the ink drop drops on the filter element 110, it is pulverized into a plurality of small ink droplets on the filter element 110. A plurality of small ink droplets pass through the filter element 110 and are withdrawn from the suction line 108 via the air extracting device 112.
  • the combination of the air extracting device 112, the air exhausting pipe 108 and the filter element 110 can generate a balanced airflow, thereby achieving equalization of the airflow in the measuring cavity 101, preventing the falling path of the ink droplet from being deflected, thereby improving the measurement accuracy.
  • Embodiments of the present disclosure also provide a printing apparatus including the ink provided by any of the embodiments of the present disclosure.
  • Water measurement system 100 The printing device can also include an ink recovery device 140 (shown in Figure 5).
  • FIG. 5 is a schematic diagram of an ink recovery device according to an embodiment of the present disclosure.
  • the ink recovery device 140 includes a recovery cavity 142 provided with a recovery hole 144.
  • the ink recovery device 140 can efficiently recover ink, prevent ink splashing, and reduce equipment contamination.
  • the size of the recovery aperture 144 of the recovery cavity 142 eg, the minimum inner diameter of the recovery aperture 144
  • the size of the nozzle 130 eg, the largest outer diameter of the nozzle 130
  • the ink recovery device 140 further includes an ink recovery line 146 that passes through the recovery chamber 142 for recovering ink.
  • the ink recovery line 146 is disposed on the opposite side of the recovery hole 144.
  • the showerhead 130 can be moved from the recovery aperture 144 into the recovery cavity 142 by a moving device (e.g., a lifting device) and then ejected, at which point the ink can be collected from the ink recovery line 146. It does not spray other equipment than the recovery chamber 142, thereby preventing the ink from contaminating other equipment.
  • a moving device e.g., a lifting device
  • the showerhead 130 can be moved by the moving device for lifting and translation.
  • the showerhead 130 is translated over the ink recovery device 140 shown in FIG. 5, and then the showerhead 130 passes through the recovery hole 144 to enter the recovery cavity 142.
  • the ink is discharged side by side; when an ink test is required, the head 130 is translated to a position corresponding to the ink measuring system 100 shown in FIG. 2A or 2B to perform ink drop measurement.
  • Embodiments of the present disclosure also provide a printing apparatus including a printing system having a bubble discharging function, which can effectively prevent process defects caused by air bubbles during printing.
  • FIG. 6 is one of schematic diagrams of a printing system having a bubble discharging function according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure further provides a printing system 200 having a bubble discharging function, comprising: a liquid storage tank 204; a spray head 206; a liquid inlet pipe 210 connecting the liquid storage tank 204 and the spray head 206; The bubble detecting device 202 outside the bubble detecting point 201 of the liquid inlet pipe 210; the nozzle valve 208 disposed in the liquid inlet pipe 210, the nozzle valve 208 is located between the bubble detecting point 201 and the head 206; The bubble line 212 connected to the path 210, the connection point of the bubble discharge line 212 and the inlet line 210 is located between the bubble detection point 201 and the nozzle valve 208; A bubble valve 209 in the bubble line 212.
  • the ink enters the liquid inlet line 210 from the reservoir 204, and the bubble detecting device 202 detects bubbles outside the bubble detecting point 201 in the inlet line 210.
  • the bubble detecting device 202 does not detect the air bubble, the nozzle valve 208 is opened, the bubble discharging valve 209 is closed, and the nozzle 206 is normally operated;
  • the bubble detecting device 202 detects the air bubble, the nozzle valve 208 is closed, the bubble discharging valve 209 is opened, and the nozzle 206 is opened.
  • the work is temporarily stopped, and the bubbled ink is discharged from the bubble discharge line 212.
  • the printing system 200 with the bubble discharging function provided by the embodiment of the present disclosure can discharge air bubbles in the liquid inlet pipe, prevent bubbles from entering the nozzle, keep the printing process stable, and thereby improve the quality of the printed product.
  • FIG. 7 is a second schematic diagram of a printing system having a bubble discharging function according to an embodiment of the present disclosure.
  • a printing system 200 according to an embodiment of the present disclosure further includes an ink recovery tank 214 , a gas path pipe 216 , and a recovery line 218 .
  • the bubble discharge line 212 communicates with the ink recovery tank 214 , and the gas path pipe 216 .
  • the first end is in communication with the ink recovery tank 214
  • the first end of the recovery line 218 is in communication with the ink recovery tank 214
  • the second end of the recovery line 218 is in communication with the reservoir 204.
  • the printing system 200 further includes a gas pressure regulating device (not shown in FIG. 7) connected to the gas path conduit 216, and the gas pressure adjusting device can draw air from the ink recovery tank 214 through the gas path conduit 216 to cause the ink recovery tank 214 to be In a negative pressure state; the air pressure adjusting device can also inflate the ink recovery tank 214 through the air passage pipe 216 to bring the ink recovery tank 214 into a positive pressure state.
  • a gas pressure regulating device (not shown in FIG. 7) connected to the gas path conduit 216, and the gas pressure adjusting device can draw air from the ink recovery tank 214 through the gas path conduit 216 to cause the ink recovery tank 214 to be In a negative pressure state; the air pressure adjusting device can also inflate the ink recovery tank 214 through the air passage pipe 216 to bring the ink recovery tank 214 into a positive pressure state.
  • the ink enters the liquid inlet line 210 from the reservoir 204, and the bubble detecting device 202 detects bubbles outside the bubble detecting point 201 in the inlet line 210.
  • the bubble detecting device 202 detects the air bubble
  • the nozzle valve 208 is closed, the bubble discharging valve 209 is opened, the nozzle 206 is temporarily stopped, and the air pressure adjusting device is evacuated from the ink recovery box 214 through the air path pipe 216 to make the ink recovery box 214 In the negative pressure state, the bubbled ink flows from the bubble discharge line 212 into the ink recovery tank 214.
  • the nozzle valve 208 When the bubble detecting device 202 does not detect the air bubble, the nozzle valve 208 is opened, the bubble discharging valve 209 is closed, the nozzle 206 is normally operated, and the air pressure adjusting device is inflated into the ink recovery tank 214 through the air path pipe 216, so that the ink recovery box 214 is in the In the positive pressure state, the ink in the ink recovery tank exits the bubble and then enters the reservoir 204 through the recovery line 218.
  • the first end of the recovery line 218 is disposed at a lower position in the ink recovery box, and the first end of the air line tube 216 is disposed in the ink recovery box. s position.
  • the position of the first end of the recovery line 218 is lower than that of the air line pipe 216
  • the position of the first end is between the first end of the recovery line 218 and the first end of the air line conduit 216.
  • This arrangement is such that when the air pressure regulating device is pumped through the air line pipe 216, no ink is drawn, and when the air pressure adjusting device is inflated through the air line pipe 216, air is not allowed to enter the liquid storage tank from the recovery line 218. .
  • the printing system 200 having the bubble discharging function shown in FIG. 7 can discharge air bubbles in the liquid inlet pipe, prevent bubbles from entering the nozzle, keep the printing process stable, thereby improving the quality of the printed product, and can reuse the ink with bubbles. To save ink and save costs.
  • the same functions of the printing system shown in FIG. 7 and the printing system shown in FIG. 6 are not described herein again.
  • FIG. 8 is a third schematic diagram of a printing system with a bubble discharging function according to an embodiment of the present disclosure.
  • a printing system 200 according to an embodiment of the present disclosure further includes an ink temporary storage device 220 , an inlet valve 222 , and a pre-discharge conduit 223 .
  • the inlet valve 222 is disposed in the inlet conduit 210 and Located between the bubble detection point 201 and the reservoir 204, the first end of the pre-discharge line 223 communicates with the inlet line 210 through the inlet valve 222, and the second end of the pre-discharge line 223 and the ink are temporarily stored.
  • Device 220 is in communication.
  • the liquid inlet pipe 210 includes a first liquid inlet pipe 210A and a second liquid inlet pipe 210B, and the first liquid inlet pipe 210A is located in the liquid storage tank 204.
  • the second inlet conduit 210B is located between the inlet valve 222 and the nozzle 206;
  • the inlet valve 222 can be a multi-directional solenoid valve configured to communicate with the pre-discharge conduit 223 One end is connected to the first liquid inlet sub-line 210A or the first end of the pre-discharge line 223 and the second liquid inlet sub-line 210B.
  • the inlet valve 222 can also be other multi-directional valves, and the disclosure is not limited herein.
  • the printing system 200 provided by an embodiment of the present disclosure further includes a temporary storage valve 224 disposed in the pre-discharge conduit 223.
  • the inlet valve 222 communicates with the first end of the pre-discharge line 223 and the first inlet sub-tank 210A, the temporary valve 224 opens, and the ink flows through the reservoir 204.
  • the first liquid inlet sub-tank 210A enters the pre-discharging line 223 through the liquid inlet valve 222, and then enters the ink temporary storage device 220 for temporary storage, and the temporary storage valve 224 is closed, and the ink is pre-discharged during the temporary storage process.
  • the liquid inlet valve 222 is connected to the first end of the pre-discharging line 223 and the second liquid-in sub-line 210B, and the temporary storage valve 224 is opened, and the pre-discharged ink is discharged from the ink temporary storage device.
  • 220 flows into the pre-discharge line 223, passes through the inlet valve 222, and flows into the second inlet sub-tank 210B, and then passes through the bubble detection point 201.
  • the bubble detecting device 202 detects that the ink still exists In the case of air bubbles, the nozzle valve 208 is closed, the bubble discharge valve 209 is opened, and the bubble discharge process is performed again; if the ink has no air bubbles, the ink enters the head 206.
  • the inlet valve 222 can also be configured to communicate with the first liquid inlet sub-tank 210A and the second liquid inlet sub-tank 210B, such that the printing system shown in FIG. It has the same or similar function as the printing system shown in FIG.
  • the printing system 200 provided by an embodiment of the present disclosure further includes a nozzle joint 226 disposed in the liquid inlet pipe 210 between the bubble detecting point 201 and the liquid storage tank 204.
  • the nozzle joint 226 is disposed in the inlet line 210 between the bubble detection point 201 and the inlet valve 222.
  • the nozzle joint 226 can be used for the removal and replacement of the spray head 206.
  • the location of the showerhead joint 226 is included, but is not limited to the situation illustrated in Figure 8, and the showerhead joint 226 can be provided at other locations in the pipeline.
  • the printing system 200 with the bubble discharging function shown in FIG. 8 adds the ink temporary storage device 220 and its supporting components to the printing system shown in FIG. 7, and realizes pre-discharging of the ink to better prevent air bubbles from entering.
  • the nozzle keeps the printing process stable, which improves the quality of the printed product.
  • the same functions of the printing system shown in FIG. 8 and the printing system shown in FIG. 7 are not described herein again.
  • FIG. 9 is a fourth schematic diagram of a printing system having a bubble discharging function according to an embodiment of the present disclosure.
  • the printing system 200 according to an embodiment of the present disclosure further includes an ink temporary storage device 220, a first temporary storage valve 232, and a second temporary storage valve 234.
  • the ink temporary storage device 220 is disposed in the liquid inlet pipe 210 and located between the bubble detecting point 201 and the liquid storage tank 204.
  • the first temporary storage valve 232 is disposed in the liquid inlet pipe 210 and located in the ink temporary storage device 220 and stored.
  • a second temporary storage valve 234 is disposed in the inlet conduit 210 and between the ink reservoir 220 and the bubble detection point 201.
  • the first temporary storage valve 232 is opened, the second temporary storage valve 234 is closed, and the ink flows from the liquid storage tank 204 through the liquid inlet line 210, and enters the ink through the first temporary storage valve 232.
  • the temporary storage device 220 performs temporary storage.
  • the first temporary storage valve 232 is closed, and the ink is pre-discharged during the temporary storage process; after the pre-discharging is completed, the second temporary storage valve 234 is opened, and the pre-discharged valve is opened.
  • the ink flows from the ink temporary storage device 220 through the second temporary storage valve 234 into the liquid inlet line 210 and then passes through the bubble detection point 201.
  • the bubble detecting means 202 detects that there is still a bubble in the ink, the nozzle valve 208 is closed, the bubble discharging valve 209 is opened, and the bubble discharging process is performed again; if the ink has no air bubbles, the ink enters the head 206.
  • the difference between the printing system shown in Figure 9 and the printing system shown in Figure 8 includes the need to use a multi-directional solenoid valve.
  • the printing system shown in FIG. 9 realizes the pre-discharging of the ink on the basis of the technical effect of the printing system shown in FIG. 7, which better prevents the bubbles from entering the nozzle, keeps the printing process stable, and further improves the quality of the printed product.
  • the same functions of the printing system shown in FIG. 9 and the printing system shown in FIG. 8 are not described herein again.
  • each valve in the printing system 200 having the bubble discharging function provided by the embodiment of the present disclosure may be a solenoid valve or other valve for controlling the continuity of the pipeline.
  • FIG. 10 is a schematic diagram of a bubble detecting device 202 in a printing system 200 having a bubble discharging function according to an embodiment of the present disclosure.
  • the bubble detecting device 202 includes a sound wave bubble detecting device.
  • the acoustic bubble detecting device can emit sound waves to the ink to be detected, and can receive and detect the echo signal. Since the reflection coefficients of the sound waves by the air and the ink are different, when the detected ink echoes have a noise, it is determined that bubbles are present.
  • a printing system having a sonic bubble detecting device can improve the accuracy of bubble detection.
  • the embodiments of the present disclosure include, but are not limited to, the case where the bubble detecting device 202 is an acoustic bubble detecting device, and the bubble detecting device 202 may also be other types of bubble detecting devices such as a photo bubble detecting device.
  • FIG. 11 is a block diagram of a composition of a printing apparatus according to an embodiment of the present disclosure.
  • the printing apparatus can include a printing system provided by any of the embodiments of the present disclosure.
  • printing device 10 also includes ink measurement system 100 provided by any of the embodiments of the present disclosure.
  • printing device 10 may also include ink recovery device 140 provided by any of the embodiments of the present disclosure.
  • the printing apparatus provided by the embodiments of the present disclosure can be used to fabricate an OLED display device.
  • embodiments of the present disclosure include, but are not limited to, fabrication of an OLED display device, and may also be used for other devices fabricated using inkjet printing technology.

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Abstract

一种墨水测量系统（100）及包括该墨水测量系统的打印设备（10），该墨水测量系统（100）包括：设置有开口（104）的测量腔体（101），其中，所述测量腔体（101）包括侧壁（102）以及底部（106），所述底部（106）与所述开口（104）相对设置；至少一条贯穿所述底部（106）的抽气管路（108）；以及设置于所述测量腔体（101）内部的滤芯（110）。该打印设备（10）还包括具有排泡功能的打印系统（200），该打印系统（200）包括：储液箱（204）；喷头（206）；连接所述储液箱（204）和所述喷头（206）的进液管路（210）；设置于所述进液管路（210）的气泡检测点（201）的外部的气泡检测装置（202）；设置于所述进液管路（210）中的喷头阀门（208），其中，所述喷头阀门（208）位于所述气泡检测点（201）和所述喷头（206）之间；与所述进液管路（210）连通的排泡管路（212），其中，所述排泡管路（212）与所述进液管路（210）的连通点位于所述气泡检测点（201）和所述喷头阀门（208）之间；以及设置于所述排泡管路（212）中的排泡阀门（209）。

Description

墨水测量系统及打印设备 技术领域
本公开的实施例涉及一种墨水测量系统及打印设备。
背景技术
喷墨打印机是在针式打印机之后发展起来的，其采用非打击的工作方式，具有体积小、操作简单方便、打印噪音低等特点。
近年来，喷墨打印机的技术已经取得了很大的发展。喷墨打印技术可以用于制作有机发光二极管(Organic Light-Emitting Diode，OLED)等产品，具有快速、工艺简单、成本低廉等特点，其墨水由光电材料和溶剂等组成。
发明内容
本公开的实施例提供一种墨水测量系统，包括：设置有开口的测量腔体，其中，所述测量腔体包括侧壁以及底部，所述底部与所述开口相对设置；贯穿所述底部的至少一条抽气管路；以及设置于所述测量腔体内部的滤芯。
例如，在本公开一实施例提供的墨水测量系统中，所述滤芯包括蜂窝状结构。
例如，在本公开一实施例提供的墨水测量系统中，所述蜂窝状结构为多层蜂窝状结构。
例如，在本公开一实施例提供的墨水测量系统中，所述蜂窝状结构包括多个蜂窝孔，至少部分所述蜂窝孔的孔径小于3微米。
例如，本公开一实施例提供的墨水测量系统，还包括抽气设备，其中，所述抽气设备设置于所述测量腔体之外并与所述抽气管路连接。
例如，本公开一实施例提供的墨水测量系统，还包括透明结构，其中，所述透明结构围绕所述开口设置于所述侧壁上。
例如，本公开一实施例提供的墨水测量系统，还包括测量设备，其中，所述测量设备设置于所述透明结构之外。
例如，在本公开一实施例提供的墨水测量系统中，所述侧壁和所述底部 密封连接。
例如，本公开一实施例提供的墨水测量系统，还包括至少一条清洗管路，其中，所述清洗管路贯穿所述测量腔体的侧壁。
例如，在本公开一实施例提供的墨水测量系统中，所述清洗管路设置于所述滤芯与所述开口之间。
例如，本公开一实施例提供的墨水测量系统，还包括清洗设备，其中，所述清洗设备设置于所述测量腔体之外并与所述清洗管路连接。
本公开的实施例还提供一种打印设备，包括如本公开任一实施例所述的墨水测量系统。
例如，本公开一实施例提供的打印设备，还包括墨水回收装置，其中，所述墨水回收装置包括设置有回收孔的回收腔体。
例如，本公开一实施例提供的打印设备，其中,所述墨水回收装置还包括墨水回收管路，所述墨水回收管路贯穿所述回收腔体。
例如，本公开一实施例提供的打印设备，还包括一种具有排泡功能的打印系统，所述打印系统包括：储液箱；喷头；连接所述储液箱和所述喷头的进液管路；设置于所述进液管路的气泡检测点的外部的气泡检测装置；设置于所述进液管路中的喷头阀门，所述喷头阀门位于所述气泡检测点和所述喷头之间；与所述进液管路连通的排泡管路，其中，所述排泡管路与所述进液管路的连通点位于所述气泡检测点和所述喷头阀门之间；以及设置于所述排泡管路中的排泡阀门。
例如，在本公开一实施例提供的打印设备中，所述打印系统还包括墨水回收箱、气路管道和回收管路，所述排泡管路与所述墨水回收箱连通，所述气路管道的第一端与所述墨水回收箱连通，所述回收管路的第一端与所述墨水回收箱连通，所述回收管路的第二端与所述储液箱连通。
例如，在本公开一实施例提供的打印设备中，在所述墨水回收箱中，所述回收管路的第一端的位置低于所述气路管道的第一端的位置。
例如，在本公开一实施例提供的打印设备中，所述打印系统还包括墨水暂存装置、进液阀门和预排泡管路，所述进液阀门设置于所述进液管路中并位于所述气泡检测点和所述储液箱之间，所述预排泡管路的第一端通过所述进液阀门与所述进液管路连通，所述预排泡管路的第二端与所述墨水暂存装 置连通。
例如，在本公开一实施例提供的打印设备中，所述进液管路包括第一进液子管路和第二进液子管路，所述第一进液子管路位于所述储液箱和所述进液阀门之间，所述第二进液子管路位于所述进液阀门和所述喷头之间；所述进液阀门为多向电磁阀，被配置为连通所述预排泡管路的第一端与所述第一进液子管路，或连通所述预排泡管路的第一端与所述第二进液子管路。
例如，在本公开一实施例提供的打印设备中，所述打印系统还包括暂存阀门，其中，所述暂存阀门设置在所述预排泡管路中。
例如，在本公开一实施例提供的打印设备中，所述打印系统还包括墨水暂存装置、第一暂存阀门和第二暂存阀门，所述墨水暂存装置设置于所述进液管路中并位于所述气泡检测点和所述储液箱之间，所述第一暂存阀门设置于所述进液管路中并位于所述墨水暂存装置和所述储液箱之间，所述第二暂存阀门设置于所述进液管路中并位于所述墨水暂存装置和所述气泡检测点之间。
例如，在本公开一实施例提供的打印设备中，所述打印系统还包括喷头接头，所述喷头接头设置在所述气泡检测点和所述储液箱之间的进液管路中。
例如，在本公开一实施例提供的打印设备中，所述气泡检测装置包括声波气泡检测装置。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，并非对本公开的限制。
图1是一种墨水测量系统的示意图；
图2A是本公开实施例提供的一种墨水测量系统的示意图之一；
图2B是本公开实施例提供的一种墨水测量系统的示意图之二；
图3是本公开实施例提供的一种墨水测量系统的局部示意图之一；
图4是本公开实施例提供的一种墨水测量系统的局部示意图之二；
图5是本公开实施例提供的一种墨水回收装置的示意图；
图6是本公开实施例提供的一种具有排泡功能的打印系统的示意图之 一；
图7是本公开实施例提供的一种具有排泡功能的打印系统的示意图之二；
图8是本公开实施例提供的一种具有排泡功能的打印系统的示意图之三；
图9是本公开实施例提供的一种具有排泡功能的打印系统的示意图之四；
图10是本公开实施例提供的一种具有排泡功能的打印系统中气泡检测装置的示意图；以及
图11是本公开实施例提供的一种打印设备的组成框图。
具体实施方式
下面将结合附图，对本公开实施例中的技术方案进行清楚、完整地描述参考在附图中示出并在以下描述中详述的非限制性示例实施例，更加全面地说明本公开的示例实施例和它们的多种特征及有利细节。应注意的是，图中示出的特征不是必须按照比例绘制。本公开省略了已知材料、组件和工艺技术的描述，从而不使本公开的示例实施例模糊。所给出的示例仅旨在有利于理解本公开示例实施例的实施，以及进一步使本领域技术人员能够实施示例实施例。因而，这些示例不应被理解为对本公开的实施例的范围的限制。
除非另外特别定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。此外，在本公开各个实施例中，相同或类似的参考标号表示相同或类似的构件。
利用喷墨打印技术制作OLED产品具有快速、低成本等特点，而生产工艺的稳定、墨滴体积的准确测量和防止污染等方面都关系到产品的品质。
喷墨打印技术是通过打印喷头精确的将墨滴打印到设计的每一个像素中，这样就要求每个墨滴的体积大小和落点都非常的准确，如果墨滴的体积大小不一，就会造成打印出的薄膜的厚度不同，影响产品的品质。
例如，图1是一种墨水测量系统100’的示意图，如图1所示，为了准确 测量，墨滴在从喷头130’喷出的过程中，需要使得墨滴直线向下，但实际上墨滴下落的路径经常发生弯曲，干扰了正常的测量，影响了测量的准确性。
本公开的实施例提供的一种墨水测量系统可以提高墨滴的测量精度，进而提高打印设备的精度；同时防止墨水飞溅，进而减少设备污染。
例如，图2A是本公开实施例提供的一种墨水测量系统的示意图之一；图2B是本公开实施例提供的一种墨水测量系统的示意图之二。如图2A、图2B所示，本公开的实施例提供一种墨水测量系统100，包括：设置有开口104的测量腔体101，测量腔体101包括侧壁102以及底部106，底部106与开口104相对设置；至少一条抽气管路108，贯穿底部106；以及设置于测量腔体101内部的滤芯110。
例如，测量腔体101的顶部设置有开口104，开口104的形状包括圆形、矩形、正多边形中的一种或其组合。开口104也可以为其他形状，本公开在此不作限定。例如，开口104的尺寸(例如圆形开口的直径、矩形开口的短边长、正多边形开口的内接圆直径)大于喷头130的尺寸(例如喷头130的最大外径)，以使喷头130可以从开口104进入测量腔体101内，防止墨水漏出污染设备。
例如，测量腔体101的侧壁102包括为筒形结构，筒形结构的横截面包括圆形、矩形、正多边形中的一种或其组合。例如，测量腔体101可以为圆筒形、长方体形或正方体形的腔体。
例如，测量腔体101包括底部106，底部106与开口104相对设置，即底部106设置在测量腔体101的远离开口104的一侧。例如，在本公开一实施例提供的墨水测量系统100中，侧壁102和底部106密封连接，以防止墨滴漏出。例如，底部106可以粘合到侧壁102的底边。或者，底部106和侧壁102也可以为一体结构。例如，在墨水测量系统100正常工作时，底部106相比于顶部的开口104更接近于地心，以使喷头130喷出的墨水在重力的作用下从顶部的开口104向底部106运动。
例如，如图2A、图2B所示，墨水测量系统100包括三条抽气管路108，三条抽气管路108均贯穿底部106，从而使每条抽气管路108中的气路(例如，通气路径)分别与测量腔体101的内部空腔连通。需要说明的是，抽气管路108的数量包括但不仅限于图2A、图2B中所示的情形，可以根据实际 需要选择抽气管路108的数量。例如，可以在测量腔体101的底部106上加工出至少一个通孔，再将与通孔相同数量的抽气管路108通过焊接或螺纹连接等方式固定在底部106上，并且使每条抽气管路108通过通孔贯通底部106。
例如，抽气管路108与测量腔体101的底部106可以通过模具加工等方式一体形成。例如，每条抽气管路108的外壁与测量腔体101的底部106密封连接，防止漏气或者墨滴漏出。
例如，在本公开一实施例提供的墨水测量系统100中，滤芯110包括蜂窝状结构。蜂窝状结构的滤芯110可以起到均衡气流，防止墨滴偏向的作用，进而提高测量精度。例如，蜂窝状结构可以为多层蜂窝状结构。多层蜂窝状结构的滤芯110可以进一步均衡气流，防止墨滴偏向。例如，蜂窝状结构包括多个蜂窝孔，至少部分蜂窝孔的孔径小于3微米。孔径小于3微米的蜂窝孔可以较好地均衡气流并将墨滴粉碎，便于墨滴的排出。需要说明的是，本公开的实施例提供的墨水测量系统100中，滤芯110的结构包括但不仅限于蜂窝状结构，也可以包括其它可以使气流均衡或墨滴分散的结构。
例如，本公开一实施例提供的墨水测量系统100，还包括抽气设备112，抽气设备112设置于测量腔体101之外并与抽气管路108连接。例如，抽气设备112可以通过抽气管路108对测量腔体101内部进行抽气，使测量腔体101内形成负压，进而形成从开口104(或喷头130)流向底部106的气流，使墨滴随着该气流一同运动，防止墨滴的下落路径发生偏向，提高测量精度。例如，抽气设备112为抽风机。又例如，抽气设备112也可以设置在抽气管路108中。
例如，本公开一实施例提供的墨水测量系统100，还包括透明结构114，透明结构114围绕开口104设置于侧壁102上。例如，透明结构114设置于侧壁102的顶边之上。
例如，透明结构114可以为筒形结构，筒形结构的横截面包括圆形、矩形、正多边形中的一种或其组合。在一些示例中，透明结构114与侧壁102的形状可以一致。透明结构114与侧壁102可以通过粘接、螺纹连接或铆接等方式连接。透明结构114可以为透明挡风壁或透明挡风板。透明结构114可以起到挡风的作用，防止墨滴下落的路径发生偏向。
例如，本公开一实施例提供的墨水测量系统100，还包括测量设备116，测量设备116设置于透明结构114之外。例如，测量设备116包括光电测量设备，可以测量墨滴的体积、速度等数据。例如，测量设备116包括光学镜头、传感器和图像处理模块，通过光学镜头和传感器获取墨滴的图像信息，再由图像处理模块处理该图像信息获取墨滴的体积、速度等参数。例如，测量设备116设置在透明结构114之外对应于透明结构114的位置，也就是说测量设备116可以通过透明结构114测量墨滴的数据。
例如，本公开一实施例提供的墨水测量系统100，还包括至少一条清洗管路118，清洗管路118贯穿测量腔体101的侧壁102。墨水测量系统100，还包括清洗设备120，清洗设备120设置于测量腔体101之外并与清洗管路118连接。例如，清洗设备120中储存有清洗液，清洗设备120通过清洗管路118把清洗液送入测量腔体101内，以清洗滤芯110和抽气管路108。例如，如图2A、图2B所示，墨水测量系统100包括两条清洗管路118。需要说明的是，清洗管路118的数量包括但不仅限于图2A、图2B中所示的情形，可以根据实际需求灵活设置清洗管路118。
例如，在本公开一实施例提供的墨水测量系统100中，清洗管路118设置于滤芯110与开口104之间。也就是说，清洗管路118的清洗液出液口的位置在滤芯110与开口104之间，使得清洗液在重力或气流的作用下进入滤芯110和清洗管路108，起到清洗作用。
例如，清洗设备120通过清洗管路118定期向测量腔体101内喷洒清洗液。例如，清洗设备120每隔一定时间间隔向测量腔体101内喷洒清洗液。
例如，图3是本公开实施例提供的一种墨水测量系统的局部示意图之一，图4是本公开实施例提供的一种墨水测量系统的局部示意图之二。如图3、图4所示，抽气设备112通过抽气管路108抽气，滤芯110使气流均匀，当墨滴掉落在滤芯110上之后，会在滤芯110上粉碎为多个小墨滴，多个小墨滴通过滤芯110后经抽气装置112从抽气管路108抽走。
例如，抽气装置112、抽气管路108和滤芯110组合在一起可以产生平衡的气流，实现测量腔体101内气流的均衡，防止墨滴的下落路径发生偏向，进而提高测量精度。
本公开的实施例还提供一种打印设备，包括本公开任一实施例提供的墨 水测量系统100。该打印设备还可以包括墨水回收装置140(如图5所示)。
图5是本公开实施例提供的一种墨水回收装置的示意图，如图5所示，墨水回收装置140包括设置有回收孔144的回收腔体142。墨水回收装置140可以有效回收墨水，防止墨水飞溅，减少设备污染。例如，回收腔体142的回收孔144的尺寸(例如回收孔144的最小内径)大于喷嘴130的尺寸(例如喷嘴130的最大外径)，便于喷嘴130进入回收腔体142。墨水回收装置140，还包括墨水回收管路146，墨水回收管路146贯穿回收腔体142，用于回收墨水。例如，墨水回收管路146设置在回收孔144相对的一侧。
例如，当需要回收墨水时，喷头130可以通过移动装置(例如升降装置)从回收孔144进入回收腔体142中，然后进行喷墨，此时墨水就可以从墨水回收管路146被收集走，不会喷溅到回收腔体142以外的其它设备，进而避免墨水污染其它设备。
例如，喷头130可以由移动装置带动其进行升降及平移运动，当需要进行排墨时，喷头130平移至图5所示墨水回收装置140上方，然后喷头130再通过回收孔144进入回收腔体142中并排墨；当需要进行墨水测试时，喷头130平移到对应于图2A或图2B所示的墨水测量系统100的位置，进行墨滴测量。
喷墨打印设备中存在很多管路，在工作过程中，很容易产生气泡，影响工艺的稳定。在使用前对墨水进行初步排泡可以消除部分气泡，但有些气泡是和墨水中的分子吸附在一起的，当温度发生变化时才会析出，这些气泡会影响打印工艺的稳定，进而影响产品的质量。
本公开实施例还提供一种打印设备，包括具有排泡功能的打印系统，可以有效防止打印过程中由于气泡造成的工艺不良。
例如，图6是本公开实施例提供的一种具有排泡功能的打印系统的示意图之一。如图6所示，本公开的实施例还提供一种具有排泡功能的打印系统200，包括：储液箱204；喷头206；连接储液箱204和喷头206的进液管路210；设置于进液管路210的气泡检测点201的外部的气泡检测装置202；设置于进液管路210中的喷头阀门208，喷头阀门208位于气泡检测点201和喷头206之间；与进液管路210连通的排泡管路212，排泡管路212与进液管路210的连通点位于气泡检测点201和喷头阀门208之间；以及设置于排 泡管路212中的排泡阀门209。
例如，墨水从储液箱204进入进液管路210，气泡检测装置202在进液管路210中的气泡检测点201的外部检测气泡。当气泡检测装置202没有检测到气泡时，喷头阀门208打开，排泡阀门209关闭，喷头206正常工作；当气泡检测装置202检测到气泡时，喷头阀门208关闭，排泡阀门209打开，喷头206暂时停止工作，带有气泡的墨水从排泡管路212排出。
本公开的实施例提供的具有排泡功能的打印系统200，可以排出进液管路中的气泡，防止气泡进入喷头，保持打印工艺稳定，进而提高打印产品的质量。
例如，图7是本公开实施例提供的一种具有排泡功能的打印系统的示意图之二。如图7所示，本公开一实施例提供的打印系统200，还包括墨水回收箱214、气路管道216和回收管路218，排泡管路212与墨水回收箱214连通，气路管道216的第一端与墨水回收箱214连通，回收管路218的第一端与墨水回收箱214连通，回收管路218的第二端与储液箱204连通。
例如，打印系统200还包括与气路管道216连接的气压调节设备(图7中未示出)，气压调节设备可以通过气路管道216从墨水回收箱214中抽气，使墨水回收箱214中处于负压状态；气压调节设备也可以通过气路管道216向墨水回收箱214中充气，使墨水回收箱214中处于正压状态。
例如，墨水从储液箱204进入进液管路210，气泡检测装置202在进液管路210中的气泡检测点201的外部检测气泡。当气泡检测装置202检测到气泡时，喷头阀门208关闭，排泡阀门209打开，喷头206暂时停止工作，气压调节设备通过气路管道216从墨水回收箱214中抽气，使墨水回收箱214中处于负压状态，带有气泡的墨水从排泡管路212流入墨水回收箱214。当气泡检测装置202没有检测到气泡时，喷头阀门208打开，排泡阀门209关闭，喷头206正常工作，气压调节设备通过气路管道216向墨水回收箱214中充气，使墨水回收箱214中处于正压状态，墨水回收箱中的墨水排出气泡后通过回收管路218进入储液箱204。
例如，在本公开一实施例提供的打印系统200中，回收管路218的第一端设置在墨水回收箱中较低的位置，气路管道216的第一端设置在墨水回收箱中较高的位置。例如，回收管路218的第一端的位置低于气路管道216的 第一端的位置。例如，墨水回收箱214中墨水的液面位于回收管路218的第一端与气路管道216的第一端之间。这种设置方式是为了当气压调节设备通过气路管道216抽气时，不会抽到墨水，当气压调节设备通过气路管道216充气时，不会使空气从回收管路218进入储液箱。
图7所示的具有排泡功能的打印系统200，可以排出进液管路中的气泡，防止气泡进入喷头，保持打印工艺稳定，进而提高打印产品的质量，同时可以重复利用带有气泡的墨水，从而节省墨水，节约成本。图7所示的打印系统与图6所示的打印系统的相同之处在此不再赘述。
例如，图8是本公开实施例提供的一种具有排泡功能的打印系统的示意图之三。如图8所示，本公开一实施例提供的打印系统200，还包括墨水暂存装置220、进液阀门222和预排泡管路223，进液阀门222设置于进液管路210中并位于气泡检测点201和储液箱204之间，预排泡管路223的第一端通过进液阀门222与进液管路210连通，预排泡管路223的第二端与墨水暂存装置220连通。
在本公开一实施例提供的打印系统200中，进液管路210包括第一进液子管路210A和第二进液子管路210B，第一进液子管路210A位于储液箱204和进液阀门222之间，第二进液子管路210B位于进液阀门222和喷头206之间；进液阀门222可以为多向电磁阀，被配置为连通预排泡管路223的第一端与第一进液子管路210A，或连通预排泡管路223的第一端与第二进液子管路210B。进液阀门222也可以为其他多向阀门，本公开在此不作限定。
例如，本公开一实施例提供的打印系统200，还包括暂存阀门224，暂存阀门224设置在预排泡管路223中。
例如，在打印系统200的工作过程中，进液阀门222连通预排泡管路223的第一端与第一进液子管路210A，暂存阀门224打开，墨水从储液箱204流经第一进液子管路210A，通过进液阀门222进入预排泡管路223，然后进入墨水暂存装置220进行暂存，暂存阀门224关闭，在暂存的过程中进行墨水的预排泡；预排泡完成后，进液阀门222连通预排泡管路223的第一端与第二进液子管路210B，暂存阀门224打开，经过预排泡的墨水从墨水暂存装置220中流入预排泡管路223，再经过进液阀门222流入第二进液子管路210B，然后通过气泡检测点201。如果气泡检测装置202检测到墨水还存在 气泡，则关闭喷头阀门208，开启排泡阀门209，再次进行排泡处理；如果墨水没有气泡，墨水则进入喷头206。
例如，在不需要使用墨水暂存装置220时，进液阀门222还可以被配置为连通第一进液子管路210A和第二进液子管路210B，这样，图8所示的打印系统就与图7所示的打印系统具有相同或相似的功能。
例如，本公开一实施例提供的打印系统200，还包括喷头接头226，喷头接头226设置在气泡检测点201和储液箱204之间的进液管路210中。例如，喷头接头226设置在气泡检测点201和进液阀门222之间的进液管路210中。例如，通过喷头接头226可以用于喷头206的拆卸及替换。例如，设置喷头接头226的位置包括但不仅限于图8所示的情形，也可以在管路中的其它位置设置喷头接头226。
图8所示的具有排泡功能的打印系统200，在图7所示打印系统的基础上增加了墨水暂存装置220及其配套部件，实现了墨水的预排泡，更好地防止气泡进入喷头，保持打印工艺稳定，进而提高打印产品的质量。图8所示的打印系统与图7所示的打印系统的相同之处在此不再赘述。
例如，图9是本公开实施例提供的一种具有排泡功能的打印系统的示意图之四。在图7所示打印系统的基础上，如图9所示，本公开一实施例提供的打印系统200，还包括墨水暂存装置220、第一暂存阀门232和第二暂存阀门234，墨水暂存装置220设置于进液管路210中并位于气泡检测点201和储液箱204之间，第一暂存阀门232设置于进液管路210中并位于墨水暂存装置220和储液箱204之间，第二暂存阀门234设置于进液管路210中并位于墨水暂存装置220和气泡检测点201之间。
例如，在打印系统200的工作过程中，第一暂存阀门232打开，第二暂存阀门234关闭，墨水从储液箱204流经进液管路210，通过第一暂存阀门232进入墨水暂存装置220进行暂存，此时第一暂存阀门232关闭，在暂存的过程中进行墨水的预排泡；预排泡完成后，第二暂存阀门234打开，经过预排泡的墨水从墨水暂存装置220经过第二暂存阀门234流入进液管路210，然后通过气泡检测点201。如果气泡检测装置202检测到墨水还存在气泡，则关闭喷头阀门208，开启排泡阀门209，再次进行排泡处理；如果墨水没有气泡，墨水则进入喷头206。
图9所示的打印系统与图8所示打印系统的区别包括不需要使用多向电磁阀。图9所示的打印系统在图7所示打印系统技术效果的基础上，实现了墨水的预排泡，更好地防止气泡进入喷头，保持打印工艺稳定，进而提高打印产品的质量。图9所示的打印系统与图8所示的打印系统的相同之处在此不再赘述。
例如，本公开实施例提供的具有排泡功能的打印系统200中的各个阀门均可以为电磁阀或其它用于控制管路通断的阀门。
例如，图10是本公开实施例提供的一种具有排泡功能的打印系统200中气泡检测装置202的示意图。例如，气泡检测装置202包括声波气泡检测装置。声波气泡检测装置可以向待检测的墨水发出声波，并可以接收并检测回声信号，由于空气和墨水对声波的反射系数不同，当检测到的墨水回声出现杂音后，判定为出现气泡。例如，具有声波气泡检测装置的打印系统，可以提高气泡检测的准确性。
需要说明的是，本公开的实施例包括但不仅限于气泡检测装置202为声波气泡检测装置的情形，气泡检测装置202也可以为例如光电气泡检测装置等其他类型的气泡检测装置。
例如，图11是本公开实施例提供的一种打印设备的组成框图。该打印设备可以包括本公开任一实施例提供的打印系统。例如，打印设备10还包括本公开任一实施例提供的墨水测量系统100。例如，打印设备10还可以包括本公开任一实施例提供的墨水回收装置140。
例如，本公开实施例提供的打印设备可用于制作OLED显示设备。需要说明的是，本公开的实施例包括但不仅限于制作OLED显示设备，也可以用于利用喷墨打印技术制作的其它设备。
虽然上文中已经用一般性说明及具体实施方式，对本公开作了详尽的描述，但在本公开实施例基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本公开精神的基础上所做的这些修改或改进，均属于本公开要求保护的范围。
本专利申请要求于2016年5月11日递交的中国专利申请第201610311363.6号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (23)

  1. 一种墨水测量系统，包括：
    设置有开口的测量腔体，其中，所述测量腔体包括侧壁以及底部，所述底部与所述开口相对设置；
    贯穿所述底部的至少一条抽气管路；以及
    设置于所述测量腔体内部的滤芯。
  2. 根据权利要求1所述的墨水测量系统，其中，所述滤芯包括蜂窝状结构。
  3. 根据权利要求2所述的墨水测量系统，其中，所述蜂窝状结构为多层蜂窝状结构。
  4. 根据权利要求2或3所述的墨水测量系统，其中，所述蜂窝状结构包括多个蜂窝孔，至少部分所述蜂窝孔的孔径小于3微米。
  5. 根据权利要求1所述的墨水测量系统，还包括抽气设备，其中，所述抽气设备设置于所述测量腔体之外并与所述抽气管路连接。
  6. 根据权利要求1所述的墨水测量系统，还包括透明结构，其中，所述透明结构围绕所述开口设置于所述侧壁上。
  7. 根据权利要求6所述的墨水测量系统，还包括测量设备，其中，所述测量设备设置于所述透明结构之外。
  8. 根据权利要求1所述的墨水测量系统，其中，所述侧壁和所述底部密封连接。
  9. 根据权利要求1所述的墨水测量系统，还包括至少一条清洗管路，其中，所述清洗管路贯穿所述测量腔体的侧壁。
  10. 根据权利要求9所述的墨水测量系统，其中，所述清洗管路设置于所述滤芯与所述开口之间。
  11. 根据权利要求9或10所述的墨水测量系统，还包括清洗设备，其中，所述清洗设备设置于所述测量腔体之外并与所述清洗管路连接。
  12. 一种打印设备，包括如权利要求1-11任一项所述的墨水测量系统。
  13. 根据权利要求12所述的打印设备，还包括墨水回收装置，其中，所述墨水回收装置包括设置有回收孔的回收腔体。
  14. 根据权利要求13所述的打印设备，其中,所述墨水回收装置还包括墨水回收管路，所述墨水回收管路贯穿所述回收腔体。
  15. 根据权利要求12所述的打印设备，还包括一种具有排泡功能的打印系统，所述打印系统包括：
    储液箱；
    喷头；
    连接所述储液箱和所述喷头的进液管路；
    设置于所述进液管路的气泡检测点的外部的气泡检测装置；
    设置于所述进液管路中的喷头阀门，其中，所述喷头阀门位于所述气泡检测点和所述喷头之间；
    与所述进液管路连通的排泡管路，其中，所述排泡管路与所述进液管路的连通点位于所述气泡检测点和所述喷头阀门之间；以及
    设置于所述排泡管路中的排泡阀门。
  16. 根据权利要求15所述的打印设备，其中，所述打印系统还包括墨水回收箱、气路管道和回收管路，所述排泡管路与所述墨水回收箱连通，所述气路管道的第一端与所述墨水回收箱连通，所述回收管路的第一端与所述墨水回收箱连通，所述回收管路的第二端与所述储液箱连通。
  17. 根据权利要求16所述的打印设备，其中，在所述墨水回收箱中，所述回收管路的第一端的位置低于所述气路管道的第一端的位置。
  18. 根据权利要求15-17任一项所述的打印设备，其中，所述打印系统还包括墨水暂存装置、进液阀门和预排泡管路，所述进液阀门设置于所述进液管路中并位于所述气泡检测点和所述储液箱之间，所述预排泡管路的第一端通过所述进液阀门与所述进液管路连通，所述预排泡管路的第二端与所述墨水暂存装置连通。
  19. 根据权利要求18所述的打印设备，其中，所述进液管路包括第一进液子管路和第二进液子管路，所述第一进液子管路位于所述储液箱和所述进液阀门之间，所述第二进液子管路位于所述进液阀门和所述喷头之间；所述进液阀门为多向电磁阀，被配置为连通所述预排泡管路的第一端与所述第一进液子管路，或连通所述预排泡管路的第一端与所述第二进液子管路。
  20. 根据权利要求18所述的打印设备，其中，所述打印系统还包括暂存 阀门，所述暂存阀门设置在所述预排泡管路中。
  21. 根据权利要求15-17任一项所述的打印设备，其中，所述打印系统还包括墨水暂存装置、第一暂存阀门和第二暂存阀门，所述墨水暂存装置设置于所述进液管路中并位于所述气泡检测点和所述储液箱之间，所述第一暂存阀门设置于所述进液管路中并位于所述墨水暂存装置和所述储液箱之间，所述第二暂存阀门设置于所述进液管路中并位于所述墨水暂存装置和所述气泡检测点之间。
  22. 根据权利要求15-17任一项所述的打印设备，其中，所述打印系统还包括喷头接头，所述喷头接头设置在所述气泡检测点和所述储液箱之间的进液管路中。
  23. 根据权利要求15-17任一项所述的打印设备，其中，所述气泡检测装置包括声波气泡检测装置。
PCT/CN2017/000036 2016-05-11 2017-01-03 墨水测量系统及打印设备 WO2017193605A1 (zh)

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