CN203995103U - Circulating jet printing system - Google Patents
Circulating jet printing system Download PDFInfo
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- CN203995103U CN203995103U CN201420309699.5U CN201420309699U CN203995103U CN 203995103 U CN203995103 U CN 203995103U CN 201420309699 U CN201420309699 U CN 201420309699U CN 203995103 U CN203995103 U CN 203995103U
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- 238000007639 printing Methods 0.000 title claims abstract description 116
- 239000007788 liquid Substances 0.000 claims abstract description 155
- 238000004140 cleaning Methods 0.000 claims abstract description 64
- 238000010992 reflux Methods 0.000 claims abstract 6
- 239000007921 spray Substances 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000000872 buffer Substances 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000007641 inkjet printing Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 4
- 238000005086 pumping Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 25
- 210000005056 cell body Anatomy 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 239000000976 ink Substances 0.000 description 6
- 230000007306 turnover Effects 0.000 description 6
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 5
- 238000005507 spraying Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000002070 nanowire Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Ink Jet (AREA)
Abstract
A circulating jet printing system comprises a negative pressure device, a discharging device and a cleaning device. The discharging device can contain feed liquid and comprises a jet printing head, a first output groove, a first backflow groove and a first liquid pump. The negative pressure device is used for changing the air pressure in the first output groove and the air pressure in the first reflux groove so that the feed liquid in the first output groove flows into the first reflux groove through the jet printing head. The first liquid pump is used for pumping the feed liquid in the first backflow groove into the first output groove. The cleaning device can contain cleaning liquid and comprises a second output groove, a second return groove and a second liquid pump. The negative pressure device is also used for changing the air pressure in the second output groove and the air pressure in the second reflux groove. The utility model discloses the utilization changes the atmospheric pressure in both grooves of discharging device and cleaning device, and negative pressure device can order about the feed liquid and flow and the cleaning solution flows in cleaning device's circulation ground in discharging device to keep the feed liquid to flow in spouting printer head, reduce and spout printer head and take place the probability that blocks up.
Description
Technical field
The utility model provides a kind of sprayed printed system, particularly a kind of circulating sprayed printed system.
Background technology
Current jet printer (can claim again ink jet printer), for example household printer and industrial jet printer, have liquid storage box and jet-printing head for depositing the feed liquids such as such as ink conventionally.Generally speaking,, in the time that above-mentioned jet printer does not use for a long time, if jet-printing head is not clean or moisturizing, feed liquid can be killed.Feed liquid after killing can be stopped up the nozzle of jet-printing head, causes jet printer spray printing smoothly, even can not spray paint liquid and cannot operate.
Occurring that feed liquid is killed so that when the blocked situation of nozzle, jet-printing head need to clean, to remove the feed liquid after killing.But, current actual clean method still cannot be removed the feed liquid after kill the inside sometimes completely, cause jet-printing head to be difficult to be returned to original nozzle and do not have blocked running situation, the feed liquid that plug nozzle even may occur cannot be removed and the situation that is forced to eliminate jet-printing head.
Utility model content
The utility model is to provide a kind of circulating sprayed printed system, and wherein feed liquid can circulate in this sprayed printed system, reduces jet-printing head the probability of stopping up occurs.
The utility model provides a kind of circulating sprayed printed system, and this circulating sprayed printed system comprises a negative pressure device, a drawing mechanism and a cleaning device.Drawing mechanism can hold a feed liquid and drawing mechanism comprises a jet-printing head, one first output magazine, one first backflash and one first drawing liquid pump.The first output magazine is connected in jet-printing head and described negative pressure device, the first backflash is connected in jet-printing head and negative pressure device, wherein negative pressure device is for changing the air pressure in air pressure and the first backflash in the first output magazine, so that the feed liquid in the first output magazine flows into the first backflash via jet-printing head.The first drawing liquid pump is connected in the first output magazine and the first backflash, and for by feed liquid suction to the first output magazine in the first backflash.Cleaning device can hold a cleaning solution and cleaning device comprises one second output magazine, one 5 second backflash and one second drawing liquid pump.The second output magazine is connected in jet-printing head and negative pressure device, the second backflash is connected in jet-printing head and negative pressure device, wherein negative pressure device is also for changing the air pressure in air pressure and the second backflash in the second output magazine, so that the cleaning solution in the second output magazine flows into the second backflash via jet-printing head.The second drawing liquid pump is connected in the second output magazine and the second backflash, and for by cleaning solution suction to the second output magazine in the second backflash.
Further, drawing mechanism also comprises one first pipeline, and jet-printing head is connected to the first output magazine and the first backflash by the first pipeline, and the first pipeline has a pair of the first switch valve, and the first switch valve is in order to control feed liquid turnover jet-printing head.
Further, the first pipeline also has the loop control pipe of connection first output magazine and the first backflash, effective so that the first output magazine of loop control is communicated with the first backflash, so that feed liquid is from the first output magazine via loop control pipe but do not flow into the first backflash via jet-printing head.
Further, cleaning device also comprises one second pipeline, and jet-printing head is connected to the second output magazine and the second backflash by the second pipeline, and the second pipeline has a pair of second switch valve, and second switch valve is in order to control cleaning solution turnover jet-printing head.
Further, negative pressure device comprises: two exhaust pipes, and one of them exhaust pipe is connected in the first output magazine and the second output magazine, and another exhaust pipe is connected in the first backflash and the second backflash; Two flow controllers, flow controller is connected to exhaust pipe; And at least one aspiration pump, at least one aspiration pump is connected in flow controller, and via flow controller and exhaust pipe and both of the first output magazine or the first output magazine and the first backflash are bled, and both of the second output magazine or the second output magazine and the second backflash are bled.
Further, negative pressure device also comprises two bolsters, and bolster is installed between flow controller and at least one aspiration pump, and is communicated with respectively flow controller and exhaust pipe.
Further, each exhaust pipe has a control air valve, one of them control air valve is used for controlling at least one aspiration pump bleeds to the first output magazine and the second output magazine, and another control air valve is used for controlling at least one aspiration pump the first backflash and the second backflash are bled.
Further, the quantity of at least one aspiration pump is two, aspiration pump is connected to flow controller, one of them aspiration pump is bled at least one of the first output magazine and the first backflash via one of them flow controller, and another aspiration pump is bled at least one of the second output magazine and the second backflash via another flow controller.
Further, drawing mechanism also comprises that one is connected in the feeder channel of the first backflash.
Further, circulating sprayed printed system also comprises multiple contactless liquid level sensors, and wherein contactless liquid level sensor is installed in respectively in the first output magazine and the first backflash.
Further, contactless liquid level sensor is ultrasonic liquid level sensor.
Based on above-mentioned, utilize the air pressure for example changing, in drawing mechanism and cleaning device cell body (above-mentioned the first output magazine and the second backflash), negative pressure device can order about feed liquid cyclically flowing and cleaning solution cyclically flowing in cleaning device in drawing mechanism, to keep feed liquid flowing in jet-printing head, reduce jet-printing head the probability of stopping up occurs.
The explanation of following embodiment is in order to give an example and to explain feature of the present utility model, and provides patent claim of the present utility model further to explain.
For feature of the present utility model and effect can be become apparent, special embodiment below, and coordinate appended graphicly, be described in detail below.
Brief description of the drawings
Fig. 1 is the schematic diagram of the circulating sprayed printed system of the utility model one embodiment.
[symbol description]
22b: woven hose
100: circulating sprayed printed system
110: negative pressure device
112a, 112b: aspiration pump
114a, 114b: flow controller
116a, 116b: bolster
120: drawing mechanism
122a: the first backflash
122b: the first output magazine
123c, 133c: liquid suction pipe
123p, 133p: the second drawing liquid pump
124c: return duct
124p: control valve
125: feeder channel
130: cleaning device
132a: the second backflash
132b: the second output magazine
140: jet-printing head
150: contactless liquid level sensor
A11, a12, b11, b12: wireway
A22, a23, b22, b23: catheter
I1: feed liquid
P1: cleaning solution
V2: the first switch valve
V3: second switch valve
Va1, Vb1: control air valve
Detailed description of the invention
Refer to Fig. 1, it illustrates the wherein circulating sprayed printed system 100 in an embodiment of the utility model.Circulating sprayed printed system 100 is of many uses.Specifically, circulating sprayed printed system 100 can ink-jet inks, and can be used as the spray picture output equipment that printer or press are used.In addition, circulating sprayed printed system 100 can be applied to industrial use.For example, circulating sprayed printed system 100 also can the industrial feed liquid such as ink, photoresist, glue material or the liquid that contains conducting particles of spray printing.
Above-mentioned industrial ink can be for example the black matrix (blackmatrix) for forming contact panel.Conducting particles is for example metallic particles, nano particle (nanoparticle) or nano wire (nanowire), and the liquid that contains conducting particles can be tin cream, elargol or copper cream, wherein the above-mentioned liquid containing conducting particles can be used to make circuit, the sense line of contact panel or the circuit of interior thin film transistor (TFT) (Thin Film Transistor, the TFT) substrate of display of wiring board.So circulating sprayed printed system 100 also can be used as industrial jet printer.
Circulating sprayed printed system 100 comprises negative pressure device 110, drawing mechanism 120 and cleaning device 130.Drawing mechanism 120 comprises jet-printing head 140, and can hold feed liquid I1, and wherein jet-printing head 140 is used for spraying feed liquid I1, and feed liquid I1 is for example ink, photoresist, glue material or the liquid that contains conducting particles.Cleaning device 130 can hold cleaning solution P1, and cleaning solution P1 can be used to clean jet-printing head 140, to avoid jet-printing head 140 because feed liquid I1 kills and stops up.Cleaning solution P1 can also have moisture-keeping functions, and can keep jet-printing head 140 inner moistening, prevents that the feed liquid I1 in jet-printing head 140 from killing.In addition, jet-printing head 140 can be piezoelectric ink-jet head (piezoelectric inkjet head).
Drawing mechanism 120 also comprises the first backflash 122a and the first output magazine 122b.The first backflash 122a and the first output magazine 122b can hold feed liquid I1, and all connect jet-printing head 140.Specifically, drawing mechanism 120 also comprises the first pipeline (first piping does not indicate), and jet-printing head 140 is connected the first backflash 122a and the first output magazine 122b by it.In the embodiment shown in fig. 1, the first pipeline has two catheters: catheter b22 and a22.Catheter b22 connects the first output magazine 122b and jet-printing head 140, and is used for the feed liquid I1 in the first output magazine 122b to be directed to jet-printing head 140.Catheter a22 connects the first backflash 122a and jet-printing head 140, and is used for the feed liquid I1 in jet-printing head 140 to be directed to the first backflash 122a.
Utilize catheter a22 and catheter b22, the first backflash 122a all can be connected jet-printing head 140 with the first output magazine 122b, and feed liquid I1 in the first output magazine 122b can and flow to the first backflash 122a through jet-printing head 140.So the first output magazine 122b can input to feed liquid I1 jet-printing head 140, and the first backflash 122a can receive from the feed liquid I1 of jet-printing head 140.When feed liquid I1 flows into when jet-printing head 140, jet-printing head 140 can spray feed liquid I1, and the spraying of feed liquid I1 is controlled in instruction that can controlled unit (not illustrating).So, jet-printing head 140 can be sprayed into feed liquid I1 pattern or word.In addition, above-mentioned control module is for example microprocessor (Microcontroller Unit, MCU).
The first pipeline can also have a pair of the first switch valve V2.These first switch valves V2 is installed in respectively catheter a22 and catheter b22, and can control feed liquid I1 turnover jet-printing head 140.Specifically, the first switch valve V2 of these after unlatching can allow the feed liquid I1 in the first output magazine 122b to flow into jet-printing head 140, and can allow the feed liquid I1 in jet-printing head 140 to flow into the first backflash 122a.These after closing the first switch valve V2 can not only forbid that the feed liquid I1 in the first output magazine 122b flows into jet-printing head 140, and can forbid that the feed liquid I1 in jet-printing head 140 flows into the first backflash 122a.So, the open and close of these first switch valves V2 can be controlled the feed liquid I1 turnover jet-printing head 140 of the first backflash 122a and the first output magazine 122b the inside.
In addition, drawing mechanism 120 also comprises liquid suction pipe 123c and the first drawing liquid pump 123p, and wherein the first drawing liquid pump 123p is installed in liquid suction pipe 123c, and connects the first output magazine 122b and the first backflash 122a by liquid suction pipe 123c.The first output magazine 122b has woven hose 22b, it connects liquid suction pipe 123c, wherein the delivery outlet of woven hose 22b can approach the bottom of the first output magazine 122b, and the first drawing liquid pump 123p can be via liquid suction pipe 123c by the feed liquid I1 in the first backflash 122a from woven hose 22b suction to the first output magazine 122b.
Because the first output magazine 122b can input to feed liquid I1 jet-printing head 140, the first backflash 122a can receive from the feed liquid I1 of jet-printing head 140, so after jet-printing head 140 sprays feed liquid I1, if do not insert the words of feed liquid I1 in the first output magazine 122b, feed liquid I1 in the first output magazine 122b can reduce, and feed liquid I1 in the first backflash 122a may be more than the feed liquid I1 in the first output magazine 122b, cause the amount imbalance of the feed liquid I1 of the first output magazine 122b and the first backflash 122a the inside.
But, because the first drawing liquid pump 123p can be by feed liquid I1 suction to the first output magazine 122b in the first backflash 122a, thereby supplement the feed liquid I1 in the first output magazine 122b, and can balance the first output magazine 122b with the first backflash 122a inside the amount of feed liquid I1.In addition, drawing mechanism 120 can also comprise the feeder channel 125 that connects the first backflash 122a, and feeder channel 125 can be deposited feed liquid I1, and can carry feed liquid I1 to the first backflash 122a, to supplement feed liquid I1.
Secondly, the first drawing liquid pump 123p coordinates catheter a22 and catheter b22 can keep feed liquid I1 interior mobile at jet-printing head 140 to the guiding of feed liquid I1.So, can reduce the time of feed liquid I1 in jet-printing head 140 interior stagnations, prevent that the feed liquid I1 in jet-printing head 140 from killing.In addition; because the delivery outlet of woven hose 22b can approach the bottom of the first output magazine 122b; therefore in the time that feed liquid I1 cyclically flows in drawing mechanism 120; the liquid level (liquid level) of feed liquid I1 can exceed the height of woven hose 22b delivery outlet conventionally, and woven hose 22b delivery outlet is buried by feed liquid I1.
The structural similarity of the structure of cleaning device 130 and drawing mechanism 120.Cleaning device 130 comprises the second backflash 132a, the second output magazine 132b, the second pipeline and the second drawing liquid pump 133p, wherein jet-printing head 140 is connected the second output magazine 132b and the second backflash 132a by the second pipeline, so that the cleaning solution P1 in the second output magazine 132b can flow to the second backflash 132a via the second pipeline.Similar to the first pipeline, the second pipeline has two catheters: catheter b23 and a23.Catheter b23 connects the second output magazine 132b and jet-printing head 140, and is used for the cleaning solution P1 in the second output magazine 132b to be directed to jet-printing head 140.Catheter a23 connects the second backflash 132a and jet-printing head 140, and is used for the cleaning solution P1 in jet-printing head 140 to be directed to the second backflash 132a.
Utilize catheter a23 and catheter b23, the second backflash 132a all can be connected jet-printing head 140 with the second output magazine 132b, and cleaning solution P1 in the second output magazine 132b can and flow to the second backflash 132a through jet-printing head 140.So the second output magazine 132b can input to cleaning solution P1 jet-printing head 140, and the second backflash 132a can receive the cleaning solution P1 from jet-printing head 140.In addition, the second pipeline can also have a pair of second switch valve V3.These second switch valves V3 is installed in respectively catheter a23 and catheter b23, and can control cleaning solution P1 turnover jet-printing head 140.
Specifically, these second switch valves V3 after unlatching can allow the cleaning solution P1 in the second output magazine 132b to flow into jet-printing head 140, and can allow the cleaning solution P1 in jet-printing head 140 to flow into the second backflash 132a.These second switch valves V3 after closing can not only forbid that the cleaning solution P1 in the second output magazine 132b flows into jet-printing head 140, and can forbid that the cleaning solution P1 in jet-printing head 140 flows into the second backflash 132a.So, the open and close of these second switch valves V3 can be controlled the cleaning solution P1 turnover jet-printing head 140 of the second backflash 132a and the second output magazine 132b the inside.
In addition, cleaning device 130 also comprises liquid suction pipe 133c and the second drawing liquid pump 133p.The second drawing liquid pump 133p is installed in liquid suction pipe 133c, and connects the second output magazine 132b and the second backflash 132a by liquid suction pipe 133c.The second drawing liquid pump 133p can be via liquid suction pipe 133c, by cleaning solution P1 suction to the second output magazine 132b in the second backflash 132a.So, the second drawing liquid pump 133p collocation catheter b23 and catheter b22 can keep cleaning solution P1 interior mobile at jet-printing head 140, clean jet-printing head 140.
In addition, in drawing mechanism 120, the first pipeline can also have the loop control pipe that connects the first output magazine 122b and the first backflash 122a, and it can make the first output magazine 122b directly not be communicated with by jet-printing head 140 with the first backflash 122a.Loop control pipe has return duct 124c and control valve 124p, and wherein return duct 124c connects the first output magazine 122b and the first backflash 122a, but does not connect jet-printing head 140.Control valve 124p is installed in return duct 124c, and can allow and forbid that feed liquid I1 is by return duct 124c.
In the time preparing circulation type cleaning sprayed printed system 100, first close these first switch valves V2, and opening controlling valve 124p and these second switch valves V3.So, the cleaning solution P1 in the second output magazine 132b can flow into jet-printing head 140, to clean jet-printing head 140, and feed liquid I1 can be from the first output magazine 122b via loop control pipe but do not flow into the first backflash 122a via jet-printing head 140.Carrying out in clean process, feed liquid I1 can be limited in the first output magazine 122b and the first backflash 122a like this, and does not flow into cleaning device 130 and jet-printing head 140, to avoid feed liquid I1 to mix with cleaning solution P1.
In addition, in the time that jet-printing head 140 need be changed, keeps in repair or maintain and be removed, also can close these first switch valves V2, and opening controlling valve 124p, so that feed liquid I1 is not by under the condition of jet-printing head 140, still can between the first output magazine 122b and the first backflash 122a, flow.So, during jet-printing head 140 is not also installed up, it is mobile that the feed liquid I1 in drawing mechanism 120 can keep, for example, to help the particle (conducting particles) in feed liquid I1 to distribute equably.
Negative pressure device 110 connects drawing mechanism 120 and cleaning device 130, and both flow for ordering about cleaning solution P1 in feed liquid I1 and the cleaning device 130 in drawing mechanism 120.Specifically, negative pressure device 110 connects the first backflash 122a, the first output magazine 122b, the second backflash 132a and the second output magazine 132b, and can bleed to the first backflash 122a, the first output magazine 122b, the second backflash 132a and the second output magazine 132b, to produce negative pressure in these cell bodies, thereby control further for example, air pressure in these cell bodies (the first backflash 122a), wherein this air pressure be for example-below 3kpa to 20kpa.So, negative pressure device 110 can produce draught head between these cell bodies, and utilizes this draught head, and negative pressure device 110 can be controlled feed liquid I1 flowing in drawing mechanism 120, and controls cleaning solution P1 flowing in cleaning device 130.
Negative pressure device 110 comprises two groups of exhaust pipes, two flow controller (Mass FlowController, MFC) 114a and 114b and two aspiration pump 112a and 112b.Wherein one group of exhaust pipe connects the first output magazine 122b and the second output magazine 132b, and another exhaust pipe connects the first backflash 122a and the second backflash 132a.The exhaust pipe that connects the first output magazine 122b and the second output magazine 132b has two wireways: wireway b11 and b12, and the exhaust pipe of connection the first backflash 122a and the second backflash 132a has two wireways: wireway a11 and a12.
Wireway b11 is connected with b12, and wherein wireway b11 connects the first output magazine 122b, and wireway b12 connects the second output magazine 132b.Wireway a11 is connected with a12, and wherein wireway a11 connects the first backflash 122a, and wireway a12 connects the second backflash 132a.In addition, each exhaust pipe also has a control air valve.Taking Fig. 1 as example, these two groups of exhaust pipes have respectively the air valve Vb1 of control and Va1.
These flow controllers 114a is connected respectively these exhaust pipes with 114b, and wherein flow controller 114a connects the exhaust pipe with wireway a11 and a12, and flow controller 114b connects the exhaust pipe with wireway b11 and b12.These aspiration pumps 112a is connected respectively these flow controllers 114a and 114b with 112b.Control air valve Vb1 and be used for controlling aspiration pump 112b the first output magazine 122b and the second output magazine 132b are bled, and control air valve Va1 is used for controlling aspiration pump 112a the first backflash 122a and the second backflash 132a are bled.In addition, the speed of exhaust of aspiration pump 112a and 112b can between 0.1 public liter/min to 5 public liters/min, for example, be 1 public liter/min, and the kind of the first drawing liquid pump 123p and the second drawing liquid pump 133p can be same as the kind of aspiration pump 112a and 112b.
In the time that jet-printing head 140 is prepared spraying feed liquid I1, can first closing control air valve Va1 and Vb1, so that aspiration pump 112b and 112a stop the second output magazine 132b and the second backflash 132a to bleed, and only respectively the first output magazine 122b and the first backflash 122a are bled.In the time preparing circulation type cleaning sprayed printed system 100, can first open and control air valve Va1 and Vb1, so that aspiration pump 112b and 112a bleed to the second output magazine 132b and the second backflash 132a.Therefore, aspiration pump 112b can be via flow controller 114b to the first output magazine 122b, or first output magazine 122b and the first backflash 122a bleed, and aspiration pump 112a can be via flow controller 114a to the second output magazine 132b, or the second output magazine 132b and the second backflash 132a bleed.
Flow controller 114a can control the gas flow in wireway a11 and a12, and flow controller 114b can control the gas flow in wireway b11 and b12.Therefore, flow controller 114a and 114b can control respectively the rate of air sucked in required of aspiration pump 112a and 112b, so that the air pressure in the first output magazine 122b is higher than the air pressure in the first backflash 122a, the air pressure in the second output magazine 132b is higher than the air pressure in the second backflash 132a.
So, negative pressure device 110 can change the air pressure in air pressure and the first backflash 122a in the first output magazine 122b, make feed liquid I1 in the first output magazine 122b via jet-printing head 140 or return duct 124c and flow into the first backflash 122a, and negative pressure device 110 also can change the air pressure in air pressure and the second backflash 132a in the second output magazine 132b, make the feed liquid I1 in the second output magazine 132b flow into the second backflash 132a via jet-printing head 140.In addition, aspiration pump 112a can make to produce negative pressure in the first backflash 122a to bleeding of the first backflash 122a, to draw the feed liquid I1 in feeder channel 125, thereby supplements drawing mechanism 120.
It is worth mentioning that, negative pressure device 110 can only include an aspiration pump (for example aspiration pump 112a or 112b), and wherein this aspiration pump can come connection traffic controller 114a and 114b by two groups of exhaust pipes.Although flow controller 114a is connected same aspiration pump with 114b, but flow controller 114a and 114b can control respectively the gas flow in these two groups of exhaust pipes, so that the air pressure in the first output magazine 122b is higher than the air pressure in the first backflash 122a, the air pressure in the second output magazine 132b is higher than the air pressure in the second backflash 132a.Therefore,, although the negative pressure device in Fig. 1 110 comprises aspiration pump 112a and 112b, in other embodiments, the quantity of the included aspiration pump of negative pressure device 110 also can only have one.
In addition, negative pressure device 110 can also comprise two bolster 116a and 116b.Bolster 116a is installed between flow controller 114a and aspiration pump 112a, and bolster 116b is installed between flow controller 114b and aspiration pump 112b, and wherein bolster 116a and 116b have bubble-tight container, for example old soldi.Bolster 116a can slow down the air pressure change between flow controller 114a and aspiration pump 112a, and bolster 116b can slow down the air pressure change between flow controller 114b and aspiration pump 112b.
So, the speed of exhaust of the first output magazine 122b, the second output magazine 132b, the first backflash 122a and the second backflash 132a can be stablized, thereby the stable gas pressure of these cell body inside can be helped.But, should be noted that, the bolster 116a in Fig. 1 and 116b are only for illustrating, and in other embodiments, negative pressure device 110 can not comprise any bolster 116a and 116b.Therefore, negative pressure device 110 does not limit and will comprise bolster 116a and 116b.
In addition, circulating sprayed printed system 100 can also comprise multiple contactless liquid level sensors 150, and these contactless liquid level sensors 150 can be ultrasonic liquid level sensor (ultrasonic levelcontroller).These contactless liquid level sensors 150 can be installed in respectively the first output magazine 122b, the first backflash 122a, the second output magazine 132b and the second backflash 132a.These contactless liquid level sensors 150 can sense respectively the liquid level of the feed liquid I1 in the first output magazine 122b and the first backflash 122a under the condition of contact liq not, and the liquid level of cleaning solution P1 in the second output magazine 132b and the second backflash 132a.So, can reduce these contactless liquid level sensors 150 and touch the chance of feed liquid I1 and cleaning solution P1, to avoid having influence on because of contact feed liquid I1 and cleaning solution P1 the degree of accuracy of contactless liquid level sensor 150.
In sum, utilize for example, bleeding to drawing mechanism and cleaning device cell body (the first output magazine 122b and the second backflash 132a) of negative pressure device, negative pressure device can order about feed liquid flowing and cleaning solution flowing in cleaning device in drawing mechanism, so that feed liquid can cyclically flow in circulating sprayed printed system.So, can keep feed liquid flowing in jet-printing head, avoid feed liquid to kill, thereby reduce jet-printing head, the probability of stopping up occur.
Secondly, negative pressure device produces negative pressure in above-mentioned cell body, to produce draught head between these cell bodies, thereby drives flowing of feed liquid and cleaning solution.Therefore, in the time there is bubble in the jet-printing head of drawing mechanism or in cell body (i.e. the first output magazine 122b and the first backflash 122a), negative pressure device can be taken the gas (for example air) in bubble away, to reduce the harmful effect of above-mentioned bubble to spray printing quality.
Disclosed person is only the utility model embodiment above, and from not limiting claim protection domain of the present utility model with this, the equalization of therefore doing according to the utility model application range changes or modifies, and still belongs to the scope that the utility model is contained.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309699.5U CN203995103U (en) | 2014-06-11 | 2014-06-11 | Circulating jet printing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309699.5U CN203995103U (en) | 2014-06-11 | 2014-06-11 | Circulating jet printing system |
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| CN203995103U true CN203995103U (en) | 2014-12-10 |
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| CN201420309699.5U Expired - Fee Related CN203995103U (en) | 2014-06-11 | 2014-06-11 | Circulating jet printing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199774A (en) * | 2017-05-03 | 2017-09-26 | 中山市神彩数字印花设备有限公司 | Inkjet system and method of operation thereof |
| JP2018089949A (en) * | 2016-11-30 | 2018-06-14 | 株式会社リコー | Liquid circulation device, device for discharging liquid |
| JP2019014066A (en) * | 2017-07-04 | 2019-01-31 | 株式会社リコー | Liquid circulation device, device for discharging liquid |
| CN110936715A (en) * | 2018-09-21 | 2020-03-31 | 株式会社斯库林集团 | Printing apparatus, printing system, and printing method |
| CN113954499A (en) * | 2021-11-01 | 2022-01-21 | 辽宁中科洪笙纳米装备技术有限公司 | Circulating device for ink supply system of plate-making machine and working method thereof |
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2014
- 2014-06-11 CN CN201420309699.5U patent/CN203995103U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018089949A (en) * | 2016-11-30 | 2018-06-14 | 株式会社リコー | Liquid circulation device, device for discharging liquid |
| JP7039885B2 (en) | 2016-11-30 | 2022-03-23 | 株式会社リコー | Liquid circulation device, liquid discharge device |
| CN107199774A (en) * | 2017-05-03 | 2017-09-26 | 中山市神彩数字印花设备有限公司 | Inkjet system and method of operation thereof |
| JP2019014066A (en) * | 2017-07-04 | 2019-01-31 | 株式会社リコー | Liquid circulation device, device for discharging liquid |
| JP7027709B2 (en) | 2017-07-04 | 2022-03-02 | 株式会社リコー | Device that discharges liquid |
| CN110936715A (en) * | 2018-09-21 | 2020-03-31 | 株式会社斯库林集团 | Printing apparatus, printing system, and printing method |
| CN113954499A (en) * | 2021-11-01 | 2022-01-21 | 辽宁中科洪笙纳米装备技术有限公司 | Circulating device for ink supply system of plate-making machine and working method thereof |
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