CN102862393A - Double-negative-pressure circular side-spray anti-sedimentation electroluminescent (EL) jet printing ink way system - Google Patents
Double-negative-pressure circular side-spray anti-sedimentation electroluminescent (EL) jet printing ink way system Download PDFInfo
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- CN102862393A CN102862393A CN2012103951086A CN201210395108A CN102862393A CN 102862393 A CN102862393 A CN 102862393A CN 2012103951086 A CN2012103951086 A CN 2012103951086A CN 201210395108 A CN201210395108 A CN 201210395108A CN 102862393 A CN102862393 A CN 102862393A
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Abstract
The invention relates to an equipment technology which uses the ink-jet printing technology for manufacturing electroluminescent (EL) sheets. For solving the problem that ink supply is unstable and ink is easy to leak and drop due to the fact that luminous layer functional ink is easy to settle, and an ink supply system with double-ink-box pressure difference adjustable double negative pressure and the ink way circular side-spray technology is designed. Siphon in a sprayer is balanced, ink is in a flow state and is stable, and a spray hole performs controllable bypass injection. The ink supply system is provided with double circulation mechanisms which comprises ink way maintenance large circulation (ink way ink pressing, ink way washing, ink way recovery and ink uniformity) and jet printing process ink way anti-sedimentation small circulation, and a programmable logic controller (PLC) system performs automatic management. An ink way structure is provided with mode conversion mechanisms of a single negative pressure mode, a double negative pressure mode and a negative pressure + constant pressure mode.
Description
[technical field]
Patent of the present invention relates to a kind ofly makes electric Quench light (ElectroLuminescent with inkjet technology, abbreviation EL) equipment and technology of sheet, mainly solving the very easily problem of uneven steady, the leakiness ink droplet China ink of the ink supply that brings of sedimentation of luminescent layer functional ink, is to belong to the electronic seal that adopts the industrial inkjet technology to make the field.
[background technology]
Electroluminescence (Electro Luminescent, be called for short EL) is by being added in the alternating voltage of two end electrodes, and the luminous a kind of physical phenomenon of electric field phospher that produces, i.e. electroluminescence phenomenon.EL cold light film of many uses is applied to the fields such as luminous advertisement, road sign, instrument dial plate especially.At present, the main manufacturing technology of EL cold light film is silk-screen, yet, inkjet printing substitutes the trend that traditional silk-screen is the industry technology development, realize the inkjet printing manufacturing of EL cold light film, have a problem to solve: the phosphor particles of luminescent layer functional ink is large, very easily sedimentation, and spray printing is unstable.
[patent of invention content]
One of Patent design of the present invention has two negative pressure of two print cartridge adjustable differential pressures, the ink feeding system of ink circulation side spray technique, the inner siphon balance of shower nozzle, China ink flowable state and stablizing, spray orifice carries out the controlled road of being close to and sprays, ink feeding system is designed with two circulative metabolisms: ink is safeguarded systemic circulation (ink presses China ink, ink to clean, printing ink reclaims, printing ink even), spray printing process ink anti-settling partial circulating, and carries out automatic management by the PLC system.
Concrete structure and operation principle are as follows:
(1) patent of the present invention is for solving the very easily problem of uneven, the leakiness ink droplet China ink of the ink supply that brings of sedimentation of EL luminescent layer functional ink, the direct-connected ink structure of the anti-settling shower nozzle of a kind of pair of negative-pressure cyclic side spray of key design, it is characterized in that shower nozzle IN/OUT ink interface direct-connected two with negative pressure, the print cartridge of pressure reduction is arranged, impel the printing ink of shower nozzle inside in the negative pressure current downflow, spray orifice is close to the trackside spray, under the gap pumping ink effect of a pump that is subjected to liquid level sensor switch control, form the shower nozzle path ink closed circuit of an anti-settling.
As shown in Figure 1, the main devices of shower nozzle path ink closed circuit has print cartridge 1, print cartridge 2, partial circulating pump, level sensing 2, three-way magnetic valve A, magnetic valve 1, magnetic valve 2, shower nozzle.At pre-spray printing or spray printing state, three-way magnetic valve A opens 1,2 the tunnel and close 3 the tunnel, magnetic valve 1 is open-minded, magnetic valve 2 is open-minded, safety flack 2 tracheaes are switched to the vacuum pressure regulation pressure-reducing valve 2 of negative pressure generator part, access negative pressure 2, safety flack 1 tracheae is switched to the vacuum pressure regulation pressure-reducing valve 1 of negative pressure generator part, access negative pressure 1 is regulated negative pressure 1 by regulating vacuum pressure regulation pressure-reducing valve 1, so that can just keep the siphon balance of spray nozzle, spray orifice does not drip China ink, regulate vacuum pressure regulation pressure-reducing valve 2 and regulate negative pressure 2, so that print cartridge 1 has suitable pressure reduction with print cartridge 2, can keep the shower nozzle path ink circulation of certain speed.
Shower nozzle path ink closed circuit operation principle: print cartridge 1, the pressure reduction of print cartridge 2 impels ink flow in the shower nozzle path, printing ink flows to print cartridge 2 by print cartridge 1 through shower nozzle, the liquid level of print cartridge 2 rises, when liquid level rises to the sensitive surface of level sensing 2, level sensing 2 is triggered and connects the partial circulating pump, the partial circulating pump begins pumping ink work, from print cartridge 2 pumping inks to print cartridge 1, print cartridge 2 liquid levels descend, when dropping to a certain degree, level sensing 2 resets, and the power supply of partial circulating pump is disconnected and stops pumping ink, the circuit cycle of shower nozzle path ink is kept print cartridge 1, the liquid level of print cartridge 2 one among a small circle in change, the liquid level of two print cartridges is stable on the whole.When consuming printing ink owing to spray printing, cause that print cartridge 1 liquid level descends, when dropping to a certain degree, level sensing 1 is triggered and connects the ink feed pump, and ink feed pump pumping ink from main China ink bottle replenishes ink feed box 1, print cartridge 1 liquid level rises, when rising to the level sensing position, level sensing 1 resets, and the power supply of ink feed pump is disconnected and stops the pumping ink ink feed.
(2) the ink system has safety protecting mechanism; when certain accidental cause (as: level sensing 1 or level sensing 2 damage and lost efficacy); cause unbalance; the liquid level of print cartridge 1 or print cartridge 2 constantly rises; printing ink enters safety flack 1 or safety flack 2; trigger the level sensing of safety flack 1 or safety flack 2; output switching signal turns high level by low level, send the PLC system to process, and produce a series of protection action: the PLC system sends safety alarm; close simultaneously the ink feed pump; open and move back pump, close the partial circulating pump, three-way magnetic valve A opens 1; 3 the tunnel; shut electromagnetic valve 1, shut electromagnetic valve 2.At safety flack 1 and 1 on vacuum pressure regulation pressure-reducing valve, on 2 on safety flack 2 and vacuum pressure regulation pressure-reducing valve, a transparent ink overflow receiving flask is set respectively, when preventing that above-mentioned security mechanism lost efficacy, the ink overflow of overflowing safety flack directly enters vacuum pressure regulation pressure-reducing valve, transparent ink overflow receiving flask can allow operating personnel in time find ink overflow simultaneously, and takes effective manually-operated measure.
(3) the related ink feeding system of patent of the present invention has big or small bicirculating anti-settling spray printing ink structure, and the ink that is designed with large and small cycles is changed the mechanism.The ink systemic circulation is mainly used in the attended operation of ink, and ink safeguards that systemic circulation has: ink presses China ink, ink to clean, printing ink reclaims, the uniform ink circulation of printing ink; The ink partial circulating is the shower nozzle path partial circulating of spray printing process anti-settling, the two circulations of size are to carry out the peripheral passage conversion of ink by 1 three-way magnetic valve, 2 switch electromagnetic valves, at the ink feed pump, move back under the compounding practice of pump, carry out ink and safeguard systemic circulation, under the effect of two print cartridge pressure reduction, partial circulating pump, carry out shower nozzle path partial circulating.Concrete former existing and process is as follows:
Ink is pressed China ink: close 3 tunnel of three-way magnetic valve A, open magnetic valve 1, shut electromagnetic valve 2, close the partial circulating pump, the negative pressure 1 of safety flack 1 is used malleation instead, under the effect of malleation, printing ink extrudes from the spray orifice of shower nozzle, under the break-make control of level sensing 1, the ink feed pump is kept China ink amount that holding the pressure China ink that continues in the print cartridge 1 from main China ink bottle ink feed to print cartridge 1.
Ink is cleaned: open 1,3 tunnel of three-way magnetic valve A, open magnetic valve 1, open magnetic valve 2, close the partial circulating pump, the negative pressure 1 of safety flack 1 is used malleation instead, and the negative pressure 2 of safety flack 2 is used malleation instead, and the ink feed pump advances cleaning fluid to print cartridge 1 from the cleaning fluid bottle, under the effect of malleation, cleaning fluid extrudes from the spray orifice of shower nozzle.
Printing ink reclaims: connect 1,3 tunnel of three-way magnetic valve A, and shut electromagnetic valve 1, shut electromagnetic valve 2 is closed the partial circulating pump, and the ink feed pump keeps cutting out, and moves back pump work, extracts the printing ink in print cartridge 1, the print cartridge 2 out.
Printing ink is even: connect 1,3 tunnel of three-way magnetic valve A, shut electromagnetic valve 1, shut electromagnetic valve 2, close the partial circulating pump, the negative pressure 1 of safety flack 1 is used malleation instead, and the negative pressure 2 of safety flack 2 is used malleation instead, move back pump work, extract the printing ink in print cartridge 1, the print cartridge 2 out, under the break-make control of level sensing 1, the ink feed pump is from main China ink bottle ink feed to print cartridge 1.
Shower nozzle path partial circulating: move back pump and be in and stop, close 3 tunnel of three-way magnetic valve A, connect 1,2 tunnel of three-way magnetic valve A, open magnetic valve 1, open magnetic valve 2, safety flack 1 is kept negative pressure 1, safety flack 2 is kept negative pressure 2, and the pressure reduction that negative pressure 1 and negative pressure are 2 impels printing ink to flow to print cartridge 2 from print cartridge 1 through shower nozzle, under the break-make control of level sensing 2, the work of partial circulating pump intermittence is drawn back print cartridge 1 to printing ink in the print cartridge 2.
(4) the related ink feeding system of patent of the present invention has the shared ink structure of single negative pressure pattern, two negative pressure pattern, negative pressure+normal pressure pattern, be designed with the mechanism and mechanism of the pattern conversion of carrying out single negative pressure pattern, two negative pressure pattern, negative pressure+normal pressure pattern, the conversion of ink pattern is that the interoperation by 1 three-way magnetic valve, 2 switch electromagnetic valves carries out.Specifically describe as follows:
Single negative pressure pattern: under pre-spray printing or spray printing state, connect 1,3 tunnel of three-way magnetic valve A, open magnetic valve 1, open or shut electromagnetic valve 2, safety flack 1 is kept negative pressure 1, and safety flack 2 is kept negative pressure 1, printing ink in the shower nozzle path is static, under the break-make control of level sensing 1, the work of ink feed pump intermittence is carried out ink feed and is mended China ink.
Two negative pressure patterns: under pre-spray printing or spray printing state, connect 1,2 tunnel of three-way magnetic valve A, close 3 tunnel of three-way magnetic valve A, open magnetic valve 1, open magnetic valve 2, safety flack 1 is kept negative pressure 1, safety flack 2 is kept negative pressure 2, and the pressure reduction that negative pressure 1 and negative pressure are 2 impels printing ink to flow to print cartridge 2 from print cartridge 1 through shower nozzle, under the break-make control of level sensing 2, the work of partial circulating pump intermittence is drawn back print cartridge 1 to printing ink in the print cartridge 2.
Negative pressure+normal pressure pattern: for the XAAR1001 shower nozzle, adopt this pattern, under pre-spray printing or spray printing state, connect 1 of three-way magnetic valve A, 2 the tunnel, close 3 tunnel of three-way magnetic valve A, open magnetic valve 1, open magnetic valve 2, safety flack 1 connects normal pressure (straight-through atmospheric pressure), and safety flack 2 is kept negative pressure, regulate the negative pressure of safety flack, until can just keep the siphon balance of spray nozzle, shower nozzle does not drip China ink, and pressure reduction impels printing ink to flow to print cartridge 2 from print cartridge 1 through shower nozzle, under the break-make control of level sensing 2, the work of partial circulating pump intermittence is drawn back print cartridge 1 to printing ink in the print cartridge 2.
The beneficial effect of Patent design of the present invention is:
1. adopt two negative pressure to realize ink flow side spray technology, two negative pressure can keep the siphon balance of spray nozzle, can keep again the ink flow of shower nozzle path inside, anti-printing ink sedimentation, the shower nozzle path ink closed circuit of an anti-settling of formation.
2. design the mechanism and mechanism of the multi-modes of single negative pressure pattern, two negative pressure pattern, negative pressure+normal pressure pattern, increased the printing ink adaptability of whole ink system, the printing ink of different qualities can be selected different ink patterns easily.
[description of drawings]
Fig. 1 is the johning knot composition of described ink system;
Fig. 2 is the functional structure chart of described ink system;
Fig. 3 is the part of described ink system photo in kind;
[specific embodiment]
Patent of the present invention provides the design of the anti-settling EL spray printing ink system of a kind of pair of negative-pressure cyclic side spray, particularly adopts two negative pressure to realize the design of the shower nozzle path ink structure capable of circulation of ink flow side spray.Implement the design of the described spray printing ink system of patent of the present invention, key is the correct type selecting of main components, and the type selecting of components and parts will fully take into account the corrosivity of each class feature, particularly printing ink of printing ink.Following table is to facts have proved adoptable main devices type selecting (scope protected of patent of the present invention is not subjected to the restriction of following table parts selection):
| Device name | With reference to brand | With reference to model | The main specifications parameter |
| Filtering pressure reducing valve | SMC | AW30-02C-6 | Range of regulation 0.05～0.85MPa |
| Vacuum generator | SMC | ZH07BL-01-01 | Nozzle 0.7mm |
| Precise pressure regulating valve | SMC | IR2000-02B | Range of regulation 0.005～0.2MPa |
| VRV | SMC | IRV10-C08B | Maximum stream flow 140L/min |
| Electric Proportion valve | SMC | ITV2090-31F2N5-Q | Range of regulation 0.0005～0.9MPa |
| The gas circuit three-way magnetic valve | SMC | VKF332*Y-5H-M5 | The two-way intercommunication |
| The ink three-way magnetic valve | SMC | MHEZ-Ms1H-3G-Qs-4K | Two advance one goes out |
| Magnetic valve | SMC | EVT307E-5GS02-F | 24V |
| Differential pressure pickup | SMC | SDE3-B2Z-B-FQ4-2P-M8 | Bore 6mm |
| Corrosion resistant printing ink conduit | SMC | SIM-M8-4GD-2.5-PU | Bore 6mm |
| Liquid level sensor | Section is auspicious | KAS-80-A22-A-K-PTFE | ±5％(＜5Psi)；0.5～4.5V |
| Filter | Quite you | MACCA0507 | 5-30um |
| Electric radiant Heating Film | Rise glad | The PI metal | 24V，18W-22W |
| Pump | Pattern inspires confidence in | NF-30-KTDC | 24V |
| Print cartridge | ? | Customization processing | 200ml |
| Ink overflow is collected surge flask | ? | The vial of good airproof performance | 300-500ml is transparent |
Claims (4)
1. one kind is adopted two negative pressure to realize the shower nozzle path ink structure capable of circulation of ink flow side spray, be primarily characterized in that shower nozzle IN/OUT ink interface direct-connected two with negative pressure, the print cartridge of pressure reduction is arranged, impel the printing ink of shower nozzle inside in the negative pressure current downflow, spray orifice is close to the trackside spray, under the gap pumping ink effect of a pump that is subjected to liquid level sensor switch control, form the shower nozzle path ink closed circuit of an anti-settling.
2. shower nozzle path ink claimed in claim 1 structure capable of circulation; one of its feature is the safety protection structure of described ink circulation; safety protection structure by the liquid level triggering of safety flack level sensing, produces ink protection action mainly by 2 safety flacks with level sensing.
3. one kind has big or small bicirculating anti-settling spray printing ink structure, it is characterized in that ink feeding system is designed with two circulative metabolisms: ink is safeguarded systemic circulation (ink presses China ink, ink to clean, printing ink reclaims, printing ink even), spray printing process ink anti-settling shower nozzle path partial circulating, the two circulations of size are to carry out the peripheral passage conversion of ink by 1 three-way magnetic valve, 2 switch electromagnetic valves, at the ink feed pump, move back under the compounding practice of pump, carry out ink and safeguard systemic circulation, under the effect of two print cartridge pressure reduction, partial circulating pump, carry out shower nozzle path partial circulating.
4. spray printing ink structure with single negative pressure pattern, two negative pressure pattern, negative pressure+normal pressure pattern, it is characterized in that ink feeding system is designed with a kind of mechanism of the pattern conversion of carrying out single negative pressure pattern, two negative pressure pattern, negative pressure+normal pressure pattern, the conversion of ink pattern is that the interoperation by 1 three-way magnetic valve, 2 switch electromagnetic valves carries out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103951086A CN102862393A (en) | 2012-10-17 | 2012-10-17 | Double-negative-pressure circular side-spray anti-sedimentation electroluminescent (EL) jet printing ink way system |
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| CN2012103951086A CN102862393A (en) | 2012-10-17 | 2012-10-17 | Double-negative-pressure circular side-spray anti-sedimentation electroluminescent (EL) jet printing ink way system |
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Cited By (9)
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| CN106626793A (en) * | 2016-12-30 | 2017-05-10 | 深圳市贝思伯威科技有限公司 | Negative-pressure control system for industrial-grade inkjet printer |
| CN107599634A (en) * | 2016-07-11 | 2018-01-19 | 佛山市南海区希望陶瓷机械设备有限公司 | Pattern permeating tile ceramic ink jet machine |
| JPWO2016208533A1 (en) * | 2015-06-26 | 2018-04-12 | 積水化学工業株式会社 | Inkjet printing apparatus and printing method |
| CN109515005A (en) * | 2018-12-27 | 2019-03-26 | 广州瓦良格机器人科技有限公司 | A kind of the ink road circulatory system and its control method of high temp glass ink-jet printer |
| CN109664618A (en) * | 2017-10-16 | 2019-04-23 | 北大方正集团有限公司 | Ink-providing control system, printing machine, ink supply control method |
| CN110014746A (en) * | 2019-05-08 | 2019-07-16 | 深圳市微特智能系统有限公司 | A kind of servo ink feeding system of industrial printer |
| WO2019179018A1 (en) * | 2018-03-21 | 2019-09-26 | 广东科达洁能股份有限公司 | Ink cartridge negative pressure control device and inkjet printer |
| CN112721456A (en) * | 2020-12-25 | 2021-04-30 | 镭德杰标识科技武汉有限公司 | Ink supply system |
| CN114604001A (en) * | 2022-04-07 | 2022-06-10 | 张家港欧码喷码电子有限公司 | Circulating ink supply system for UV printer |
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Cited By (12)
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| JPWO2016208533A1 (en) * | 2015-06-26 | 2018-04-12 | 積水化学工業株式会社 | Inkjet printing apparatus and printing method |
| CN107599634A (en) * | 2016-07-11 | 2018-01-19 | 佛山市南海区希望陶瓷机械设备有限公司 | Pattern permeating tile ceramic ink jet machine |
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| CN109664618A (en) * | 2017-10-16 | 2019-04-23 | 北大方正集团有限公司 | Ink-providing control system, printing machine, ink supply control method |
| WO2019179018A1 (en) * | 2018-03-21 | 2019-09-26 | 广东科达洁能股份有限公司 | Ink cartridge negative pressure control device and inkjet printer |
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| CN109515005A (en) * | 2018-12-27 | 2019-03-26 | 广州瓦良格机器人科技有限公司 | A kind of the ink road circulatory system and its control method of high temp glass ink-jet printer |
| CN109515005B (en) * | 2018-12-27 | 2023-09-15 | 杭州瓦良格智造有限公司 | Ink path circulation system of high-temperature glass ink-jet printer and control method thereof |
| CN110014746A (en) * | 2019-05-08 | 2019-07-16 | 深圳市微特智能系统有限公司 | A kind of servo ink feeding system of industrial printer |
| CN112721456A (en) * | 2020-12-25 | 2021-04-30 | 镭德杰标识科技武汉有限公司 | Ink supply system |
| CN112721456B (en) * | 2020-12-25 | 2022-03-11 | 镭德杰标识科技武汉有限公司 | Ink supply system |
| CN114604001A (en) * | 2022-04-07 | 2022-06-10 | 张家港欧码喷码电子有限公司 | Circulating ink supply system for UV printer |
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Application publication date: 20130109 |