CN102241198B - Spray head control plate and spray head driving voltage control method - Google Patents
Spray head control plate and spray head driving voltage control method Download PDFInfo
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- CN102241198B CN102241198B CN2010101754262A CN201010175426A CN102241198B CN 102241198 B CN102241198 B CN 102241198B CN 2010101754262 A CN2010101754262 A CN 2010101754262A CN 201010175426 A CN201010175426 A CN 201010175426A CN 102241198 B CN102241198 B CN 102241198B
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Abstract
The invention discloses a spray head control plate and a spray head voltage control method. The spray head control plate comprises a processing unit, a signal generator and a voltage control circuit, wherein the signal generator is used for generating control signals of spray heads and corresponding control commands are emitted to the spray heads by the processing unit according to the control signals of the spray heads; the processing unit is used for receiving the control signals of the spray heads, which are emitted by the signal generator, regulating parameters of a mainboard of an inkjet printer and the spray head control plate to further control the spray heads to work; and the voltage control circuit is used for boosting a 12V-48V direct current power supply of the spray head control plate to 65V-150V driving voltage which is required by every spray head through a voltage boosting circuit. The spray head control plate does not need a special high-voltage power supply and is powered by using a safe voltage; a high-voltage transmission path is short and between 20cm and 60cm, and the driving voltage of the spray heads is controlled precisely; the driving voltage of each spray head can be regulated independently and the regulation precision is high; and the voltage regulation range is large, the circuit is simple and the performances are stable.
Description
Technical field
The present invention relates to a kind of applicator control panel of ink printer and shower nozzle driving voltage control method, relate to specifically high pressure piezoelectric spray nozzle control panel and shower nozzle driving voltage control method for a kind of ink-jet printer.
Background technology
Inkjet printer technologies is divided two kinds of thermal foam formula and piezoelectric types, and it is exactly by piezo-electric crystal, applying voltage that piezoelectric ink jet is printed, and makes it to occur at a high speed and slight distortion, thereby the printing ink in black chamber is extruded from nozzle.Nozzle control panel is the connector circuit board of ink-jet printer control system to shower nozzle, and every kind of shower nozzle all needs the interface circuit of oneself.Its end connects shower nozzle, and the other end connects mainboard.It provides print data, control signal and power drive signal for shower nozzle.As shown in Figure 1, the driving voltage difference of different high-pressure nozzles 3, general its driving voltage is between 65V-150V, nozzle control panel 2 is arranged on shower nozzle dolly 1, with shower nozzle dolly 1, move reciprocatingly back and forth, in prior art, pass through, at the inkjet printing motor spindle, the high voltage package 4 identical with the shower nozzle number is set, high pressure transfers to nozzle control panel 2 from transmission line 5 through drag chain, send shower nozzle 3 to through flat cable 6 again, drive shower nozzle 3 work, transmission line 5 length that need between high voltage package 4 and nozzle control panel 2 are between 4m-10m.Existing high-pressure nozzle driving voltage control method is because its transmission line is longer, easily cause signal attenuation, Control of Voltage is inaccurate, cause print quality to descend, on its transmission line, transmission voltage is high in addition, easily human body is caused to unexpected harm in transmitting procedure, a plurality of high voltage package are set, the printer cost is improved.
Summary of the invention
The problem existed for prior art, the object of the present invention is to provide a kind of Control of Voltage accurately, the applicator control panel of ink printer of handling safety.
For achieving the above object, nozzle control panel of the present invention, comprise processing unit, signal generator and voltage control circuit, wherein, signal generator is for generation of the control signal of shower nozzle, and sends corresponding control command by processing unit to shower nozzle according to the control signal of shower nozzle; Processing unit receives the shower nozzle control signal that signal generator sends, and regulates the parameter of ink-jet printer mainboard and nozzle control panel, controls shower nozzle work; Described voltage control circuit, for the control command according to processing unit, rises to by its booster circuit the driving voltage 65V-150V that each shower nozzle needs by the 12V-48V DC power supply of nozzle control panel.
Further, described shower nozzle is the high pressure piezo jets.
Further, described high pressure piezo jets comprises Dimatix shower nozzle, Galaxy shower nozzle, Polaris shower nozzle, S-class shower nozzle, Q-class shower nozzle.
Further, described signal generator is FPGA or CPLD.
Further, described processing unit is microprocessor.
Further, the control signal of described shower nozzle comprises igniting fluctuating signal, clock signal, pixel data signal and heating-up temperature signal.
Further, the parameter of described nozzle control panel comprises nozzle temperature, sensor signal and clock signal.
Further, described voltage control circuit also comprises trigger pulse circuit and level shifting circuit.
Further, low side divider resistance in described booster circuit on voltage feedback loop is the equivalent resistance that after digital regulation resistance is connected with a resistance, another resistance in parallel forms, digital regulation resistance is for adjusting booster circuit voltage, with the resistance of digital regulation resistance series and parallel, can guarantee in the digital regulation resistance short circuit or while opening circuit the ratio of divider resistance in normal range (NR).
Further, described booster circuit comprises a delay circuit.
Further, described delay circuit consists of a resistance and capacitances in series.
Further, each shower nozzle correspondence of ink-jet printer is connected with a described booster circuit.
Further, also be provided with the LVDS interface on described nozzle control panel, the signal demand that described mainboard is sent here is single-ended signal by the LVDS receiving chip by Difference Solution, and the signal of delivering to mainboard also need to be packaged into the LVDS signal by corresponding transmission chip.
Another object of the present invention is to propose a kind of high pressure piezo jets driving voltage control method, be specially, adopt a 12V-48V dc source to power to nozzle control panel, the driving voltage 65V-150V 12V-48V boost in voltage needed to a shower nozzle by the booster circuit arranged on nozzle control panel.
Further, each shower nozzle of the corresponding ink-jet printer of a plurality of booster circuits is set on nozzle control panel, realizes that the driving voltage of each shower nozzle is adjustable separately.
Further, low side divider resistance in described booster circuit on voltage feedback loop is the equivalent resistance that after digital regulation resistance is connected with a resistance, another resistance in parallel forms, digital regulation resistance is for adjusting booster circuit voltage, with the resistance of digital regulation resistance series and parallel, can guarantee in the digital regulation resistance short circuit or while opening circuit the ratio of divider resistance in normal range (NR).
Further, described booster circuit comprises a delay circuit.
Further, described delay circuit consists of a resistance and capacitances in series.
The advantage of nozzle control panel of the present invention:
Do not need a plurality of special controllable high-voltage power supplys, use a safe DC-voltage supply, reduce costs and reduced volume;
The high-voltage transmission path is short, and between 20cm～60cm, Control of Voltage is accurate;
The shower nozzle driving voltage is long-range adjustable;
Can independently regulate the driving voltage of each shower nozzle, and degree of regulation is high;
The voltage-regulation scope is large, from 12V-48V, boosts to 65V-150V, and circuit is simple, stable performance.
The accompanying drawing explanation
Fig. 1 is shower nozzle Control of Voltage schematic diagram in prior art;
Fig. 2 is shower nozzle Control of Voltage schematic diagram in the present invention;
The structured flowchart of the nozzle control panel that Fig. 3 is a specific embodiment of the present invention;
The booster circuit schematic diagram of the nozzle control panel that Fig. 4 is a specific embodiment of the present invention.
The specific embodiment
As shown in Figures 2 and 3, high pressure piezo jets voltage control method of the present invention adopts a safe voltage (be more than or equal to 12V DC and be less than or equal to 48V DC) power supply 11 to nozzle control panel 8 power supplies of printing on dolly 7, by the booster circuit arranged on nozzle control panel 8, the supply voltage of 12V-48V is boosted to the driving voltage 65V-150V that each shower nozzle 9 needs, be provided with the booster circuit identical with the shower nozzle number on nozzle control panel 8, one shower nozzle of the corresponding ink-jet printer of each booster circuit, realize that the driving voltage of each shower nozzle 9 is adjustable separately.High pressure piezo jets voltage control method of the present invention replaces high voltage package of the prior art by safe voltage, avoided the long-distance transmissions high-tension electricity to cause unexpected injury to human body, shortened transmission range (shower nozzle 3 operating voltages of prior art send nozzle control panel 2 from the printer bottom to through transmission line 5 after being regulated by the high voltage package 4 that is arranged on the printer bottom and control shower nozzle 3 simultaneously, shower nozzle operating voltage of the present invention sends nozzle control panel 8 by the safe voltage 11 that is arranged on the printer bottom to through transmission line 10, the operating voltage that 8 booster circuits that arrange regulate each shower nozzle and need on nozzle control panel sends shower nozzle 9 to by flat cable 12.The former high-voltage transmission distance is the distance of high voltage package 4 to shower nozzle 3, and its high-voltage transmission path is the length that transmission line 5 adds flat cable 6, generally between 4m～10m; The latter's high-voltage transmission distance is that on nozzle control panel, booster circuit is to the distance of shower nozzle, and the length that its high-voltage transmission path is flat cable 12, generally between 20cm～60cm).Nozzle control panel of the present invention is connected with shower nozzle with the ink-jet printer mainboard, the print data of shower nozzle is directed to mainboard, nozzle control panel comprises single-chip microcomputer, FPGA/CPLD, voltage control circuit and LVDS coffret, FPGA/CPLD is for generation of the control signal of shower nozzle, and sends corresponding control command by single-chip microcomputer to shower nozzle according to the control signal of shower nozzle; The control signal of shower nozzle is produced by FPGA/CPLD, FPGA/CPLD receives the same control signal from mainboard, produce the distinctive control signal of various shower nozzles, as firing pulse, clock signal, pixel data, heating-up temperature etc., some control signal is not delivered to shower nozzle but the impulse generator of control head plate as the igniting fluctuating signal, is used for producing the output pulses that drives shower nozzle.
Single-chip microcomputer receives the shower nozzle control signal that FPGA/CPLD sends, and regulates the parameter of ink-jet printer mainboard and nozzle control panel, controls shower nozzle work; Nearly all parameter on nozzle control panel, as nozzle temperature, sensor signal (paper is wide, paper is thick, liquid level etc. in assistant print cartridges), clock signal can be passed through the microcontroller serial port remote adjustment.The present invention can adopt different microprocessors to realize controlling function.
The interface of nozzle control panel and mainboard is LVDS, and this interface has the advantage that antijamming capability is strong, the cable core number is few, transmission path is short, signal attenuation is few.The signal demand that mainboard is sent here is single-ended signal by the LVDS receiving chip by Difference Solution, and the signal of delivering to mainboard also need to be packaged into the LVDS signal by similar transmission chip.Sensor sends to mainboard by the signal detected through the LVDS packing, and mainboard is according to each component working of the signal controlling printer detected.
Voltage control circuit, for the control command according to single-chip microcomputer, controls by its booster circuit the driving voltage that each shower nozzle needs; Voltage control circuit comprises booster circuit, circuits for triggering and level shifting circuit, trigger pulse circuit is for generation of high-voltage pulse, firing pulse, pixel data and clock signal that CPLD produces are Transistor-Transistor Logic level, the triggering signal of shower nozzle is the CMOS level, because the value of the low and high level of TTL and CMOS is different, so need the conversion of level while interconnecting.The schematic diagram that Fig. 4 is booster circuit in the present embodiment, adopting its model of switch control chip IC01 is LM3478, guarantees the quality of output, and this chip can be according to the situation switching multiple control modes of load; To have divider resistance on the booster circuit voltage feedback loop now and make a digital regulation resistance IC02 into, realize that voltage is long-range adjustable.And directly digital regulation resistance is replaced divider resistance will likely make digital regulation resistance damage, cause feedback control loop abnormal.In embodiment by digital regulation resistance IC02 first with in parallel with another resistance R 05 again after a resistance R 04 connect after the equivalent resistance that forms is alternative has divider resistance on the booster circuit voltage feedback loop now, thereby guarantee that digital regulation resistance is that short circuit or the ratio of the divider resistance opened circuit are all in scope normally.When the while powers in order to reduce, to the impact of power supply, embodiment has increased by a delay circuit on the basis of existing booster circuit, and delay circuit consists of resistance R 03 and capacitor C 01, and sets a larger time delay.Also increase and have a resistance R 36 to prevent powered on moment because the unsettled short circuit caused over the ground of metal-oxide-semiconductor T01 grid in embodiment.Each shower nozzle correspondence on ink-jet printer is connected with a booster circuit, can independently regulate the driving voltage of each shower nozzle by booster circuit.
It is to be noted and any distortion of making according to the specific embodiment of the present invention all do not break away from the scope that spirit of the present invention and claim are put down in writing.
Claims (6)
1. a nozzle control panel, comprise processing unit, signal generator and voltage control circuit, and wherein, signal generator is for generation of the control signal of shower nozzle, and sends corresponding control command by processing unit to shower nozzle according to the control signal of shower nozzle, processing unit receives the shower nozzle control signal that signal generator sends, and regulates the parameter of ink-jet printer mainboard and nozzle control panel, controls shower nozzle work, it is characterized in that, described voltage control circuit is for the control command according to processing unit, the 12V-48V DC power supply of nozzle control panel is risen to the driving voltage 65V-150V that each shower nozzle needs by its booster circuit, divider resistance in described booster circuit on voltage feedback loop is the equivalent resistance that after digital regulation resistance is connected with a resistance, another resistance in parallel forms, digital regulation resistance is for adjusting booster circuit voltage, with the digital regulation resistance string, resistance in parallel can guarantee in the digital regulation resistance short circuit or while opening circuit the ratio of divider resistance in range of safety operation, described booster circuit comprises a delay circuit.
2. nozzle control panel as claimed in claim 1, is characterized in that, described shower nozzle is the high pressure piezo jets.
3. nozzle control panel as claimed in claim 1, is characterized in that, described delay circuit consists of a resistance and capacitances in series.
4. as the described nozzle control panel of claim 1-3 any one, it is characterized in that, each shower nozzle correspondence of ink-jet printer is connected with a described booster circuit.
5. a control method that has adopted the high pressure piezo jets driving voltage of the nozzle control panel described in claim 1, be specially, adopt a 12V-48V dc source to power to nozzle control panel, the driving voltage 65V-150V 12V-48V boost in voltage needed to a shower nozzle by the booster circuit arranged on nozzle control panel.
6. high pressure piezo jets driving voltage control method as claimed in claim 5, is characterized in that, each shower nozzle of the corresponding ink-jet printer of a plurality of booster circuits is set on nozzle control panel, realizes that the driving voltage of each shower nozzle is adjustable separately.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101754262A CN102241198B (en) | 2010-05-12 | 2010-05-12 | Spray head control plate and spray head driving voltage control method |
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| CN2010101754262A CN102241198B (en) | 2010-05-12 | 2010-05-12 | Spray head control plate and spray head driving voltage control method |
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| CN102241198A CN102241198A (en) | 2011-11-16 |
| CN102241198B true CN102241198B (en) | 2013-12-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002557B (en) * | 2014-05-05 | 2016-03-30 | 上海古鳌电子科技股份有限公司 | A kind of high speed ink jet print module |
| CN107959283A (en) * | 2017-11-30 | 2018-04-24 | 宁夏共享模具有限公司 | 3D printing head Driver Card bistable state closed-loop direct electric power system and method |
| CN110471350B (en) * | 2019-08-23 | 2022-06-17 | 森大（深圳）技术有限公司 | Nozzle parameter configuration circuit, method and device and storage medium |
| CN117465135B (en) * | 2023-11-24 | 2024-07-02 | 广州市森扬电子科技有限公司 | Spray nozzle voltage output self-correction method, device and storage medium |
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| JP3256748B2 (en) * | 1993-06-30 | 2002-02-12 | ライオン株式会社 | Liquid softener composition for clothing |
| CN1796125A (en) * | 2004-12-09 | 2006-07-05 | 佳能株式会社 | Inkjet recording head substrate and drive control method, inkjet recording head, inkjet recording head cartridge and inkjet recording apparatus |
| CN1876377A (en) * | 2005-06-07 | 2006-12-13 | 明基电通股份有限公司 | Device and method for supplying spray nozzle voltage of ink jet printer |
| CN201685526U (en) * | 2010-05-12 | 2010-12-29 | 北京美科艺数码科技发展有限公司 | Nozzle control panel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6218273A (en) * | 1985-07-17 | 1987-01-27 | Ricoh Co Ltd | Charge deflection type ink jet recording apparatus |
| JPH0624864B2 (en) * | 1985-10-02 | 1994-04-06 | キヤノン株式会社 | Inkjet recording device |
| JPS6331759A (en) * | 1986-07-25 | 1988-02-10 | Ricoh Co Ltd | Ink jet printer |
| JPH03256748A (en) * | 1990-03-07 | 1991-11-15 | Hitachi Ltd | Ink jet recorder |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3256748B2 (en) * | 1993-06-30 | 2002-02-12 | ライオン株式会社 | Liquid softener composition for clothing |
| CN1796125A (en) * | 2004-12-09 | 2006-07-05 | 佳能株式会社 | Inkjet recording head substrate and drive control method, inkjet recording head, inkjet recording head cartridge and inkjet recording apparatus |
| CN1876377A (en) * | 2005-06-07 | 2006-12-13 | 明基电通股份有限公司 | Device and method for supplying spray nozzle voltage of ink jet printer |
| CN201685526U (en) * | 2010-05-12 | 2010-12-29 | 北京美科艺数码科技发展有限公司 | Nozzle control panel |
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