CN203496469U - Ink-jet printing device - Google Patents
Ink-jet printing device Download PDFInfo
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- CN203496469U CN203496469U CN201320610826.0U CN201320610826U CN203496469U CN 203496469 U CN203496469 U CN 203496469U CN 201320610826 U CN201320610826 U CN 201320610826U CN 203496469 U CN203496469 U CN 203496469U
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- power supply
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- inkjet
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Abstract
The utility model discloses an ink-jet printing device. The ink-jet printing device comprises switch power sources, a main-control panel and a nozzle control panel. A power supply voltage powers the main-control panel through the switch power sources. The ink-jet printing device is characterized in that: an intelligent shutdown circuit is disposed between the power supply voltage and the switch power sources; the intelligent shutdown circuit comprises a signal providing part and a power supply conversion part; and the intelligent shutdown circuit is used before shutdown, the main-control panel controls the nozzle control panel to cut off drive signals of nozzles firstly, logical signals of the nozzles are cut off then, a shutdown signal is provided for the signal providing part of the intelligent shutdown circuit through the main-control panel at last, the power supply voltage is switched off, and the switch power sources cannot be powered, so that the shutdown is realized. An effect of nozzle protection is achieved.
Description
Technical field
The utility model relates to a kind of inkjet-printing device, relates to specifically a kind of inkjet-printing device with Bye-byes function.
Background technology
Inkjet printing sprays ink droplet by shower nozzle and form required print image to print media.According to the ink-jet principle of shower nozzle, be divided into micro-piezoelectric type shower nozzle and hot bubble type sprays first two, hot bubble type shower nozzle is because chemical change easily occurs ink under 350-400 ℃ of high temperature, and character is unstable, and the real colour of getting can be subject to impact to a certain extent; Because ink sprays by bubble, the directionality of ink particulate and volume size are difficult for grasping, and print line edge easily uneven, have affected to a certain extent print quality on the other hand; Micro-piezoelectric type shower nozzle is the characteristic of electric discharge while utilizing crystal pressurization, stable ink is sprayed under normal temperature state.Stronger to ink droplet control ability, also color dot is dwindled manyly, the ink dot of generation does not have comet tail yet, thereby makes the image printed more clear.Easily realize the high accuracy print quality up to 1440dpi, and during micro-piezoelectric ink jet without heating, ink is with regard to chemical change not occurring because being heated, therefore greatly reduce the requirement to ink.
Piezoelectric ink jet is printed and is referred to by applying voltage to piezo-electric crystal, makes it to occur at a high speed and slight distortion, and the ink in black chamber is extruded from nozzle, realizes the printing of image or word.When piezo-electric crystal is subject to extraneous pulse voltage, do the used time, piezo-electric crystal produces the volume reducing that distortion causes nozzle ink cavity.Like this, an oil dripping China ink just penetrates from nozzle.Then, piezo-electric crystal restores to the original state, and due to surface tension effects, new ink enters nozzle.By the large flow nozzle that is arranged side by side, just can obtain desirable spray printing width and resolution.Piezoelectric type shower nozzle requires strict powering on and power down order, and the order powering on is: logic circuit-high-voltage pulse, the order of power down: high-voltage pulse-logic circuit.Nozzle control panel is often installed by layman in factory, there will be that electric power polarity connects instead, high pressure and the problem such as low pressure is put upside down, overtension, and supply voltage shakiness easily causes the impact to shower nozzle, serious damage shower nozzle.For protection shower nozzle, inkjet-printing device all needs to detect work and the location status of a series of parts before open and close machine, and need to complete some necessary operations and work in coordination with the work of peripheral circuit and the program that powers on.Guarantee when power-off operation, during the power down of shower nozzle, first fall high-voltage pulse electric, then fall logic circuit electricity.Therefore,, in the time of routine use large-format ink-jet printing equipment, be sure not to pull out by force attaching plug shutdown.
Utility model content
The problem existing for prior art; the purpose of this utility model is to propose a kind of inkjet-printing device with Bye-byes function; while being used for guaranteeing to shut down, first fall the high-voltage pulse electric of shower nozzle, then fall the logic circuit electricity of shower nozzle, thereby reach the effect of protection shower nozzle.
For achieving the above object, the utility model proposes a kind of inkjet-printing device and comprise Switching Power Supply, master board and nozzle control panel, supply voltage is powered to master board through Switching Power Supply, it is characterized in that, between described supply voltage and described Switching Power Supply, be provided with a Bye-byes circuit, described Bye-byes circuit comprises that signal provides part and power supply conversion portion, described signal provides part to comprise input interface JP1, resistance R 6, R7, diode D10, photoelectrical coupler O2 and voltage VCC, the off signal of master board output connects 1 pin of input interface JP1, 1 pin of input interface JP1 connects 1 pin of photoelectrical coupler O2 by resistance R 7, 3 pin of input interface JP1 connect 2 pin of photoelectrical coupler O2 by diode D1, the 3 pin ground connection of photoelectrical coupler O2, 4 pin of photoelectrical coupler O2 are connected with voltage VCC by resistance R 6, 4 pin of photoelectrical coupler O2 also connect the base stage of triode T1.Described power supply transform portion comprises current-limiting circuit, rectification circuit, Zener diode DV1, filter capacitor CT1, triode T1 and relay G1, described current-limiting circuit consists of the first capacitor C 1 and the second capacitor C 2, after the first capacitor C 1 is in parallel with the second capacitor C 2, be serially connected on the live wire L of supply voltage, supply voltage connects by diode D5 after current-limiting circuit, D6, the rectification circuit that D7 and D8 form, at the two ends of rectification circuit and meet Zener diode DV1, filter capacitor CT1 is attempted by the two ends of Zener diode DV1, filter capacitor CT1 powers to Switching Power Supply output through relay G1, grounded emitter at triode T1, one end of the collector connecting relay G1 coil of triode T1, the voltage VCC end of another termination filter capacitor CT1 of relay G1 coil.During shutdown, master board is controlled nozzle control panel and is cut off successively the driving signal of shower nozzle and the logical signal of shower nozzle, then by master board, to the signal of Bye-byes circuit, provide part one high level, the triode T1 cut-off of power supply conversion portion is cut off supply voltage and is realized shutdown to Switching Power Supply power supply.
Described voltage VCC is that supply voltage is through the voltage after current limliting, rectification, voltage stabilizing.
Described supply voltage is 220V.
At the two ends of described relay G1 coil and meet a diode D2.
Described power supply conversion portion also comprises the resistance R 1 and light emitting diode D1 at the two ends that are attempted by filter capacitor CT1, and resistance R 1 is connected in series with light emitting diode D1, another termination voltage VCC of resistance R 1.
With respect to prior art; inkjet-printing device of the present utility model can guarantee that by a Bye-byes circuit is set between 220V supply voltage and Switching Power Supply power down at shower nozzle voltage is sequentially for first falling to drive signal then to fall logical signal, thereby effectively protects shower nozzle.
Accompanying drawing explanation
Fig. 1 is the shower nozzle control system schematic diagram of inkjet-printing device in prior art;
Fig. 2 is the shower nozzle control system schematic diagram of inkjet-printing device in the utility model;
Fig. 3 is Bye-byes circuit in the utility model schematic diagram under normal print state;
Fig. 4 is Bye-byes circuit in the utility model schematic diagram under off-mode.
The specific embodiment
Describe with reference to the accompanying drawings the utility model inkjet-printing device below in detail and how to realize Bye-byes.
Fig. 1 is the shower nozzle control system schematic diagram of inkjet-printing device of the prior art, in prior art 220V supply voltage by Switching Power Supply to master board, nozzle control panel and the power supply of peripheral hardware plate, master board receives the work of each electric elements in each sensor signal control circuit, and sends print data to nozzle control panel, and nozzle control panel is controlled shower nozzle work, when shutdown, direct cutting electromechanical source, is difficult to guarantee the power down order of shower nozzle, easily damages shower nozzle.
Fig. 2 is the shower nozzle control system schematic diagram of inkjet-printing device in the utility model, and with respect to the schematic diagram of the shower nozzle control system of prior art, the utility model is provided with a Bye-byes circuit between 220V supply voltage and Switching Power Supply.The power down that realizes shower nozzle by Bye-byes circuit, sequentially for first falling high-voltage pulse electric, is then fallen logic circuit electricity, last cutting electromechanical source, thus reach the effect of protection shower nozzle.
Fig. 3 is Bye-byes modular circuit schematic diagram under normal print state, Bye-byes modular circuit of the present utility model comprises that signal provides part and power supply conversion portion, wherein stimulus part comprises input interface JP1, resistance R 6 and R7, diode D10 is, master board output signal meets the input interface JP1 of Bye-byes module, 1 pin of input interface JP1 is by 1 pin of resistance R 7 serial connection photoelectrical coupler O2, 3 pin of input interface JP1 connect 2 pin of photoelectrical coupler O2 by diode D10, the 3 pin ground connection of photoelectrical coupler O2, 4 pin of photoelectrical coupler O2 connect 5V supply voltage by resistance R 6, between 4 pin of photoelectrical coupler O2 and resistance R 6, be also connected in series the base stage of triode T1.R1 wherein, R6 plays metering function, and diode D10 is for anti-reverse.
Described power supply conversion portion is, after the first capacitor C 1 is in parallel with the second capacitor C 2, is connected on the live wire of 220V alternating supply voltage, utilizes the capacitive reactance characteristic of electric capacity to alternating current, and alternating current is carried out to current limliting, thereby forms bleeder circuit.Voltage after current limliting passes through by four diode D5, D6, the full-wave rectifying circuit that D7 and D8 form.The effect of rectification circuit is to convert the voltage alternating current of ac buck circuit output to unidirectional pulsating nature direct current.At the two ends of rectification circuit and meet a Zener diode DV1, after access Zener diode DV1, even because voltage fluctuates, or other reason is while causing in circuit each point variation in voltage, and the voltage at load two ends will remain unchanged substantially.At the two ends of Zener diode DV1 and meet a filter capacitor CT1 and exchange pulsation and promote efficient smooth direct current output in order to reduce, by being set, filter capacitor make the service behaviour of circuit more stable, also reduced the interference of alternation pulse ripple to electronic circuit simultaneously.The capacitance of general filter capacitor is larger, and filtering performance is better, and in order to obtain better DC stabilization coefficient, capacitance is typically chosen in hundreds of microfarads or more than thousand microfarads.After light emitting diode D1 and resistance R 1 serial connection, be attempted by the two ends of filter condenser CT1, at the negative pole of filter capacitor CT1, be connected in series the emitter and collector of triode T1 with the negative pole of Light-Emitting Diode D1.The base stage of triode T1 connects master board signal output part, at the two ends of filter capacitor CT1 also and meet a diode D2, for anti-reverse electromotive force, at the two ends of diode D2 and succeed electrical equipment G1, the output interface of relay G1 connects to master board, the Switching Power Supply of the power supply such as nozzle control panel.
Under inkjet-printing device normal operating conditions, 1 pin of input interface JP1 is low level, not conducting of photoelectrical coupler O2, now 3 pin of photoelectrical coupler O2 and 4 not conductings of pin, the voltage of 4 pin is voltage VCC, now 1 pin of triode T1 is high level, triode T1 conducting, the contact 5 of relay G1 is connected with contact 3, now 1 pin of relay output interface JP2 and 2 pin are connected, and relay output interface JP2 connects Switching Power Supply, and Switching Power Supply is to nozzle control panel, master board and the power supply of peripheral hardware plate, wherein R1 plays metering function, and diode D10 is for anti-reverse.
During power-off operation, press shutdown button, master board is received after off signal to nozzle control panel one signal, nozzle control panel first cuts off the high-voltage pulse electric of shower nozzle, then cut off the logic circuit electricity of shower nozzle, after nozzle high-voltage Pulse Electric and logic circuit electricity are closed, master board is to 1 pin one high level of the input interface JP1 of Bye-byes module, now photoelectrical coupler O2 conducting, 4 pin of photoelectrical coupler and 3 pin conductings, 4 pin ground connection, 1 pin of triode T1 is low level, triode T1 cut-off, the contact 5 of relay G1 is connected with contact 4, 1 pin of relay output interface JP2 and 2 pin disconnect, thereby cut off 220V supply voltage to the electricity of Switching Power Supply, realize complete machine shutdown.
The utility model by arranging the high-voltage pulse electric that first falls shower nozzle when a Bye-byes circuit can effectively guarantee to shut down between supply voltage and Switching Power Supply; then fall the logic circuit electricity of shower nozzle; last cutting electromechanical source, thus reach the effect of protection shower nozzle.
It is to be noted and any distortion of doing according to the specific embodiment of the present utility model all do not depart from the scope that spirit of the present utility model and claim are recorded.
Claims (7)
1. an inkjet-printing device, comprise Switching Power Supply, master board and nozzle control panel, supply voltage is powered to master board and nozzle control panel through Switching Power Supply, it is characterized in that, between described supply voltage and described Switching Power Supply, be provided with a Bye-byes circuit, described Bye-byes circuit comprises that signal provides part and power supply conversion portion, before shutdown, the driving signal that nozzle control panel first cuts off shower nozzle is controlled in master board, cut off again the logical signal of shower nozzle, finally by master board, to the signal of Bye-byes circuit, provide part one off signal, cut off supply voltage and realize shutdown to Switching Power Supply power supply.
2. inkjet-printing device as claimed in claim 1, it is characterized in that, described signal provides part to comprise input interface JP1, resistance R 6, R7, diode D10 and photoelectrical coupler O2, the off signal of master board output connects 1 pin of input interface JP1,1 pin of input interface JP1 connects 1 pin of photoelectrical coupler O2 by resistance R 7,3 pin of input interface connect 2 pin of photoelectrical coupler O2 by diode D1, the 3 pin ground connection of photoelectrical coupler O2,4 pin of photoelectrical coupler O2 meet voltage VCC by resistance R 6, and 4 pin of photoelectrical coupler O2 also connect the base stage of triode T1.
3. inkjet-printing device as claimed in claim 1, it is characterized in that, described power supply transform portion comprises current-limiting circuit, rectification circuit, Zener diode DV1, filter capacitor CT1, triode T1 and relay G1, described current-limiting circuit consists of the first capacitor C 1 and the second capacitor C 2, after the first capacitor C 1 is in parallel with the second capacitor C 2, be serially connected on the live wire L of supply voltage, supply voltage connects by diode D5 after current-limiting circuit dividing potential drop, D6, the rectification circuit that D7 and D8 form, at the two ends of rectification circuit and meet Zener diode DV1, filter capacitor CT1 is attempted by the two ends of Zener diode DV1, filter capacitor CT1 powers to Switching Power Supply output through relay G1, grounded emitter at triode T1, one end of the collector connecting relay G1 coil of triode T1, the voltage VCC end of another termination filter capacitor CT1 of relay G1 coil.
4. inkjet-printing device as claimed in claim 2, is characterized in that, described voltage VCC is that supply voltage is through the voltage after current limliting, rectification, voltage stabilizing.
5. inkjet-printing device as claimed in claim 3, is characterized in that, described supply voltage is 220V.
6. inkjet-printing device as claimed in claim 3, is characterized in that, at the two ends of described relay G1 coil and meet a diode D2.
7. inkjet-printing device as claimed in claim 3, is characterized in that, described power supply conversion portion also comprises resistance R 1 and the light emitting diode D1 at the two ends that are attempted by filter capacitor CT1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610826.0U CN203496469U (en) | 2013-09-30 | 2013-09-30 | Ink-jet printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610826.0U CN203496469U (en) | 2013-09-30 | 2013-09-30 | Ink-jet printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203496469U true CN203496469U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320610826.0U Expired - Fee Related CN203496469U (en) | 2013-09-30 | 2013-09-30 | Ink-jet printing device |
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| Country | Link |
|---|---|
| CN (1) | CN203496469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448391A (en) * | 2013-09-30 | 2013-12-18 | 北京美科艺数码科技发展有限公司 | Inkjet printing device |
| CN111204134A (en) * | 2018-11-22 | 2020-05-29 | 精工爱普生株式会社 | Drive circuit, liquid discharge apparatus, and drive method |
-
2013
- 2013-09-30 CN CN201320610826.0U patent/CN203496469U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448391A (en) * | 2013-09-30 | 2013-12-18 | 北京美科艺数码科技发展有限公司 | Inkjet printing device |
| CN103448391B (en) * | 2013-09-30 | 2016-03-30 | 北京美科艺数码科技发展有限公司 | A kind of inkjet-printing device |
| CN111204134A (en) * | 2018-11-22 | 2020-05-29 | 精工爱普生株式会社 | Drive circuit, liquid discharge apparatus, and drive method |
| CN111204134B (en) * | 2018-11-22 | 2021-10-01 | 精工爱普生株式会社 | Drive circuit, liquid discharge apparatus, and drive method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160930 |