CN106476431B - A kind of three cavity negative pressure ink supply systems of Xun Huan - Google Patents
A kind of three cavity negative pressure ink supply systems of Xun Huan Download PDFInfo
- Publication number
- CN106476431B CN106476431B CN201610885445.1A CN201610885445A CN106476431B CN 106476431 B CN106476431 B CN 106476431B CN 201610885445 A CN201610885445 A CN 201610885445A CN 106476431 B CN106476431 B CN 106476431B
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- Prior art keywords
- ink
- pump
- negative pressure
- black
- ink supply
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/19—Ink jet characterised by ink handling for removing air bubbles
Abstract
The invention discloses a kind of three cavity negative pressure ink supply systems of Xun Huan, it includes print cartridge of the tool there are three cavity, nozzle, Mo Tong, return pump, ink-suuplying pump, suction pump, solenoid valve out of ink, return black solenoid valve and control circuit board, three cavitys are negative pressure cavity respectively, ink supply chamber and ink overflow chamber, the ink overflow mouth of ink supply chamber is connected with the ink entrance of ink overflow chamber, the ink outlet port of ink overflow chamber is connected by suction pump with black bucket, the ink entrance of ink supply chamber is connected by ink-suuplying pump with black bucket, the ink outlet port of negative pressure cavity is connected by returning pump with black bucket, the ink outlet port of ink supply chamber is connected by the ink entrance of solenoid valve out of ink and nozzle, the black mouth that returns of negative pressure cavity is connected by returning the black mouth that returns of black solenoid valve and nozzle；The ink outlet port of nozzle, time black mouth and ink entrance are interconnected；Pump, ink-suuplying pump, suction pump, solenoid valve out of ink and time black solenoid valve is returned to be electrically connected with control circuit board.The present invention can solve the problems, such as to be susceptible to layering in ink pipeline.
Description
Technical field
The present invention relates to variable data spray printings and digital printing equipment ink feeding system.
Background technology
Current negative pressure ink supply system, including negative pressure gas circuit and ink supply ink road.In negative pressure gas circuit, typically by vacuum pumping
Air generates negative pressure to air, and negative pressure is followed by print cartridge by negative-pressure pipeline through negative pressure box buffering, and ink-suuplying pump extracts ink from black bucket
For water to print cartridge, print cartridge resupplies ink to nozzle.The supply process of ink is unidirectional, be easy to cause ink and occurs in ink road
The problem of being layered, ink road and nozzle caused to block, so as to influence to influence print quality.
UV ink must keep the constancy of ink temperature that could keep the stabilization of ink viscosity during spray printing, at present
All it is to be heated to heating ink, to nozzle mounting base automatically using nozzle and two stage ink box is heated.These heating are all local
Heating cannot be to the stability of heating ink, and especially in different environment temperatures, the variation of temperature is very big, causes ink viscosity
Variation, so as to influence print quality.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of three cavity negative pressure ink supply systems of Xun Huan
System, can solve the problems, such as to be susceptible to layering in ink pipeline.
The purpose of the present invention is realized using following technical scheme：
A kind of three cavity negative pressure ink supply systems of cycle, include tool there are three the print cartridge of cavity, nozzle, Mo Tong, time pump,
Ink-suuplying pump, suction pump, solenoid valve out of ink, time black solenoid valve and control circuit board, three cavitys are negative pressure cavity, ink supply respectively
Chamber and ink overflow chamber, the ink overflow mouth of ink supply chamber are connected with the ink entrance of ink overflow chamber, and the ink outlet port of ink overflow chamber passes through suction pump and black bucket
Connection, the ink entrance of ink supply chamber are connected by ink-suuplying pump with black bucket, and the ink outlet port of negative pressure cavity is connected by returning pump with black bucket, is supplied
The ink outlet port of black chamber is connected by the ink entrance of solenoid valve out of ink and nozzle, and negative pressure cavity returns black mouth by returning black solenoid valve and spray
Head returns black mouth connection；The ink outlet port of nozzle, time black mouth and ink entrance are interconnected；Return pump, ink-suuplying pump, suction pump, out of ink
Solenoid valve and time black solenoid valve are electrically connected with control circuit board.
Preferably, which further includes adds for what the ink to ink supply intracavitary was heated
Backing, heating plate are electrically connected with control circuit board.It is further preferred that preferred, three cavity negative pressure ink supply system of cycling
Also bag is arranged at the temperature sensor of ink supply intracavitary, and temperature sensor is electrically connected with control circuit board.
Preferably, which further includes the liquid level sensor for being arranged at ink supply intracavitary, liquid level
Sensor is electrically connected with control circuit board.
Preferably, which also wraps the liquid level sensor being arranged in black bucket, level sensing
Device is electrically connected with control circuit board.
Preferably, which further includes to detect and show the negative of the pressure value of negative pressure cavity
Press table.
Preferably, which further includes positive pressure pump and positive pressure electromagnetic valve, the outlet of positive pressure pump
It mouthful is connected with the air inlet of positive pressure electromagnetic valve, the gas outlet of positive pressure electromagnetic valve and the air inlet connection of negative pressure cavity, positive pressure pump and just
Pressure electromagnetic valve is electrically connected with control circuit board.
Preferably, which further includes the alarm being electrically connected with control circuit board.
Preferably, which further includes the touch-screen being electrically connected with control circuit board.
Preferably, it is respectively arranged with one between black bucket and time pump, between black bucket and ink-suuplying pump, between black bucket and suction pump
Filter.
Preferably, ink agitating device is further included, the ink agitating device is arranged in black bucket.It can further such that
Ink in black bucket stirs evenly.
Preferably, ink degassing device is further included, the ink entrance of the ink degassing device is connected with the ink outlet port of ink-suuplying pump,
The gas outlet of the ink degassing device is connected with returning the ink entrance of pump.
Preferably, the air filter for being arranged at positive pressure pump one side is further included.
Compared with prior art, the beneficial effects of the present invention are：
1st, worked together as a result of ink agitating device, solenoid valve out of ink, time black solenoid valve, ink-suuplying pump and time pump
Design so that ink supply when, ink stirs evenly in black bucket, is constantly cycled in pipeline, so as to solve not
Different with ink viscosity, especially highly viscous ink causes ink road and nozzle blockage problem and can effectively prevent ink
It is layered, causes ink road and nozzle blockage problem.Cycling ink flow design, when ink generate bubble can be pulled away,
It will not rest in nozzle, effectively prevent the abnormal problem due to bubble jet.
2nd, using the setting of solenoid valve out of ink, after system cut-off, solenoid valve out of ink is isolated with nozzle, the air in nozzle
Ink supply chamber and the pipeline connected with ink supply chamber are cannot be introduced into, so as to effectively prevent ink from generating bubble in operation.
3rd, the setting of heating plate and temperature sensor can keep the heating of ink, in the process of running and in difference
Temperature environment under, ensure the uniformity of ink temperature, ensure that system stablizes spray printing.
4. three chamber print cartridges structures design, ink supply chamber occurs that ink is excessive, and ink supply chamber is communicated with ink overflow chamber, excessive ink meeting
Automatic stream ink overflow chamber, ink overflow protection pump can take extra ink away, ensure system circulation ink supply, ensure system negative regulation.
Description of the drawings
Fig. 1 is the structure diagram of the three cavity negative pressure ink supply system of cycling of present pre-ferred embodiments；
Fig. 2 is the work flow diagram of the three cavity negative pressure ink supply system of cycling of present pre-ferred embodiments；
Fig. 3 is the structure chart that the present invention preferably cycles three cavity negative pressure ink supply systems in real time.
Reference numeral：1st, Mo Tong；2nd, negative pressure cavity；3rd, ink supply chamber；4th, ink overflow chamber；5th, nozzle；6th, suction pump；7th, ink-suuplying pump；
8th, pump is returned；9th, black solenoid valve is returned；10th, solenoid valve out of ink；11st, heating plate；12nd, temperature sensor；13rd, positive pressure pump；14th, positive pressure
Solenoid valve；15th, vacuum table；16th, liquid level sensor；17th, filter；18th, filter；19th, filter；20th, liquid level sensor；
21st, ink degassing device；22nd, ink agitating device；23rd, air filter；Arrow represents ink flow direction.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the present invention is described further：
As shown in figures 1 and 3, three cavity negative pressure ink supply systems of a kind of Xun Huan, including tool, there are three cavitys (described three
Cavity is negative pressure cavity 2, ink supply chamber 3 and ink overflow chamber 4 respectively) print cartridge, nozzle 5, black bucket 1, return pump 8, ink-suuplying pump 7, suction pump
6th, solenoid valve 10 out of ink, return black solenoid valve 9, control circuit board (figure not depending on), for what is heated to the ink in ink supply chamber 3
Heating plate 11, the temperature sensor 12 being arranged in ink supply chamber 3, are arranged at ink at the liquid level sensor 20 being arranged in ink supply chamber 3
Liquid level sensor 16 in bucket 1, for detecting and show the vacuum table 15 of the pressure value of negative pressure cavity 2, positive pressure pump 13, positive pressure electromagnetism
Valve 14, alarm (figure not depending on), touch-screen (figure does not regard), filter 17, filter 18 and filter 19.In the present embodiment,
Fig. 3 is only a kind of concrete implementation mode, and the position assembling of wherein all parts is not necessarily layout situation in Fig. 3, can be with
It is other position arrangement modes.
The ink overflow mouth of ink supply chamber 3 is connected with the ink entrance of ink overflow chamber 4, the ink outlet port of ink overflow chamber 4 pass sequentially through suction pump 6,
Filter 17 is connected with black bucket 1, and the ink entrance of ink supply chamber 3 passes sequentially through ink-suuplying pump 7, filter 18 is connected with ink bucket 1, negative pressure cavity
2 ink outlet port passes sequentially through back pump 8, filter 19 is connected with black bucket 1, and the ink outlet port of ink supply chamber 3 passes through solenoid valve 10 out of ink
It is connected with the ink entrance of nozzle 5, the black mouth that returns of negative pressure cavity 2 is connected by returning black solenoid valve 9 with the black mouth that returns of nozzle 5.Nozzle 5
Ink outlet port, time black mouth and ink entrance are interconnected.
Return pump 8, ink-suuplying pump 7, suction pump 6, solenoid valve out of ink 10, time black solenoid valve 9, positive pressure pump 13, positive pressure electromagnetic valve
14th, heating plate 11, liquid level sensor 16, liquid level sensor 20, temperature sensor 12, touch-screen, alarm be and control circuit
Plate is electrically connected.The solenoid valve out of ink 10 of the present embodiment and time black solenoid valve 9 are two-position two-way solenoid valve, positive pressure electromagnetic valve 14
For two-position three way magnetic valve.
The gas outlet of positive pressure pump 13 is connected with the air inlet of positive pressure electromagnetic valve 14, the gas outlet of positive pressure electromagnetic valve 14 and negative pressure
The air inlet connection of chamber 2.
Ink degassing device 21, the ink entrance of the ink degassing device 21 are connected with the ink outlet port of ink-suuplying pump, which takes off
The gas outlet of device of air 21 is connected with returning the ink entrance of pump.
Further include the air filter 23. for being arranged at positive pressure pump one side
The liquid level sensor 16 and liquid level sensor 20 of the present embodiment are switch.
The heating plate 11 of the present embodiment can be arranged in ink supply chamber 3, can also be arranged on the outer wall of ink supply chamber 3.
The liquid level sensor of the working condition of suction pump 6 can also be provided with to control in the ink overflow chamber 4 of the present embodiment.
The course of work of the present embodiment is as follows：
The hotter temperature of ink, the type of nozzle, ink-suuplying pump 7 and the rotating speed for returning pump 8 are set on the touchscreen, and will
Parameter preserves on the control circuitry.
As shown in Fig. 2, when starting to work, ink-suuplying pump 7 starts pumping ink water, and positive pressure electromagnetic valve 14 is opened, and opens electricity out of ink
Magnet valve 10, ink supply chamber 3 are connected with negative pressure cavity 2, and ink flow is into ink supply chamber 3 and negative pressure cavity 2, when ink supply chamber 3 and negative pressure cavity 2 are examined
It when measuring ink, returns pump 8 and starts to work, positive pressure electromagnetic valve 14 is closed, and solenoid valve out of ink is opened, ink supply in ink road operational process
Pump 7 and time pump 8 are always maintained at working condition, and rotating speeds of the two pumps are adjusted by touch-screen, are supplied during operation
Pump 7 and time 8 rotating speed of pump are consistent, and just can guarantee negative regulation, the rotating speed of pump is in 120ml/min--200ml/min.
Into ink supply chamber 3, the bubble in ink is separated by ink degassing device 21 for the pumping ink water from black bucket 1 of ink-suuplying pump 7,
Into ink supply chamber 3, bubble can be returned to by returning pump 19 in black bucket 1 ink flow.Solenoid valve 10 out of ink is in work in ink supply chamber 3
Make state.Solenoid valve 10 out of ink has protective effect, and when in off-position, solenoid valve 10 out of ink is closed, ink supply chamber 3
Ink would not be flowed out from nozzle 5, keep ink road interference-free, into air ink road will not be maintained to stablize.
When the ink of black bucket 1 is less than the liquid level of the setting of liquid level sensor 16, alarm just has alarm addition ink.
When the temperature sensor in black bucket detects the temperature of ink, the temperature sensor of black pipe can detect current ring
Border temperature, face is set according to different inks and environment on the touchscreen needs the temperature value that heats, and control circuit will be controlled
Make the heating plate of three chamber print cartridges.The setting of heating temperature determines the characteristics of different inks, environment according to following factor in black bucket
Temperature, the black length of pipe, the flow velocity of ink, nozzle quantity.
One ink theoretical optimal operating temperature value can be set in system, system can according to temperature sensor in black bucket,
Two black pipe temperature sensors, temperature sensors 12, to control the heating unit of black bucket, heating plate 11 whether to be heated with
And the ratio of heating, the ratio of system heating is with 1 degree of least unit.
Prevent the temperature losses of ink in operation, heating plate 11 is used for compensating heating ink, and temperature sensor 12 is used for
The temperature of ink is detected, face sets the temperature value for needing to heat, control electricity according to different inks and environment on the touchscreen
Road will control heating plate 11 to heat, until temperature that temperature sensor 12 detects is equal to the temperature of setting, in the mistake of operation
Cheng Zhong, temperature sensor 12 can detect ink temperature value always, and when temperature value is less than setting value, heating plate 11 heats, and keeps
Temperature of the ink in ink supply chamber 3, it is preferred that the temperature value of heating ink sets lower 1-3 than the value of ink actual needs
Degree is set according to heating state inside different nozzles.
Heated protective acts on, and system can read the state of temperature of four temperature sensors, when more than two temperature sensors
The 3 degree of systems of ink temperature value for being more than setting for reading temperature value design temperature can alarm.
The extra ink of ink supply chamber 3 spills over ink overflow chamber 4, and the liquid level sensor (e.g., switch) in ink overflow chamber 4 detects
When ink overflow chamber 4 has ink, 6 work of ink overflow pump can be controlled, extra ink is withdrawn into black bucket 1.
When nozzle 5 needs care and maintenance, it is necessary to be carried out squeezing ink with positive pressure, pin squeeze ink switch (this squeeze ink switch with
Control circuit is electrically connected), system enters barotropic state, and positive pressure pump 13 and positive pressure electromagnetic valve 14 are started to work, shape in negative pressure cavity 2
Into positive pressure, until nozzle 5 has ink to come out, unclamp and squeeze ink switch, positive pressure pump 13 and positive pressure electromagnetic valve 14 are stopped, system into
Enter normally for ink-condition.
To sum up, whole workflow is as follows：
After the power is turned on, the switch in black bucket 1 and ink supply chamber 3 can all detect whether ink, if black bucket 1 is without ink
Water, alarm have alarm, it is necessary to add ink, until addition ink reaches the examination criteria of switch, black 1 ink inside of bucket
Agitating device 22 starts to stir work, system can detect black 1 ink inside temperature of bucket, black pipe temperature sensor detects black tube temperature degree,
The temperature of 3 ink inside of ink supply chamber controls whether heating plate 11 heats according to the situation of detection, and simultaneity factor can detect ink supply chamber 3
In whether have ink, if without ink, system can control ink-suuplying pump 7 to start to work, until the ink in ink supply chamber 3 reaches floating
Sub switch examination criteria, when the ink of ink supply chamber 3 reaches standard, solenoid valve 10 out of ink returns black solenoid valve 9 and opens, and returns pump 8
Work is started simultaneously at, system starts to work normally, and vacuum table 15 starts to detect negative pressure value.Ink-suuplying pump 7 and time pump 8 can be according to controls
The rotary speed working set in system processed, when in system normal operation ink-suuplying pump 7 and return pump 8 can work always, whole system meeting
It is run according to the parameter of set-up of control system.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of three cavity negative pressure ink supply systems of cycle, which is characterized in that including have there are three the print cartridge of cavity, nozzle, Mo Tong,
Pump, ink-suuplying pump, suction pump, solenoid valve out of ink, time black solenoid valve and control circuit board are returned, three cavitys are negative pressure respectively
Chamber, ink supply chamber and ink overflow chamber, the ink overflow mouth of ink supply chamber are connected with the ink entrance of ink overflow chamber, and the ink outlet port of ink overflow chamber passes through suction pump
It is connected with black bucket, the ink entrance of ink supply chamber is connected by ink-suuplying pump with black bucket, and the ink outlet port of negative pressure cavity is by returning pump and black bucket
Connection, the ink outlet port of ink supply chamber are connected by the ink entrance of solenoid valve out of ink and nozzle, and the black mouth that returns of negative pressure cavity passes through Hui Mo electricity
The black mouth that returns of magnet valve and nozzle connects；The ink outlet port of nozzle, time black mouth and ink entrance are interconnected；Return pump, ink-suuplying pump, pumping ink
Pump, solenoid valve out of ink and time black solenoid valve are electrically connected with control circuit board；Ink degassing device is further included, the ink takes off
The ink entrance of device of air is connected with the ink outlet port of the ink-suuplying pump, the gas outlet of the ink degassing device and described time pump
Ink entrance is connected.
2. three cavity negative pressure ink supply systems of Xun Huan as described in claim 1, which is characterized in that further include for ink supply intracavitary
The heating plate that is heated of ink, heating plate is electrically connected with control circuit board.
3. three cavity negative pressure ink supply systems of Xun Huan as claimed in claim 2, which is characterized in that further include and be arranged at ink supply intracavitary
Temperature sensor, temperature sensor and control circuit board are electrically connected.
4. as described in claim 1 cycle three cavity negative pressure ink supply systems, which is characterized in that further include be arranged at ink supply chamber and
Liquid level sensor in black bucket, liquid level sensor are electrically connected with control circuit board.
5. three cavity negative pressure ink supply systems of Xun Huan as described in claim 1, which is characterized in that further include to detect and show
The vacuum table of the pressure value of negative pressure cavity.
6. three cavity negative pressure ink supply systems of Xun Huan as described in claim 1, which is characterized in that further include positive pressure pump and positive piezoelectricity
Magnet valve, the gas outlet of positive pressure pump are connected with the air inlet of positive pressure electromagnetic valve, the gas outlet of positive pressure electromagnetic valve and the air inlet of negative pressure cavity
Mouth connection, positive pressure pump and positive pressure electromagnetic valve are electrically connected with control circuit board.
7. three cavity negative pressure ink supply systems of Xun Huan as described in claim 1, which is characterized in that further include and control circuit board electricity
Property connection alarm.
8. three cavity negative pressure ink supply systems of Xun Huan as described in claim 1, which is characterized in that further include and control circuit board electricity
Property connection touch-screen.
9. as described in claim 1 cycle three cavity negative pressure ink supply systems, which is characterized in that black bucket and return pump between, ink
A filter is respectively arranged between bucket and ink-suuplying pump, between black bucket and suction pump.
10. three cavity negative pressure ink supply systems of Xun Huan as described in claim 1, which is characterized in that ink agitating device is further included,
The ink agitating device is arranged in black bucket.
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| CN201610885445.1A CN106476431B (en) | 2016-10-10 | 2016-10-10 | A kind of three cavity negative pressure ink supply systems of Xun Huan |
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| CN109664618B (en) * | 2017-10-16 | 2020-10-13 | 北大方正集团有限公司 | Ink supply control system, printing machine, and ink supply control method |
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| CN113478976B (en) * | 2021-05-31 | 2022-09-30 | 北京中电元德科技有限责任公司 | External negative pressure integrated device |
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| CN114211884B (en) * | 2021-12-08 | 2022-09-30 | 北京中电元德科技有限责任公司 | Secondary ink box for ink-jet printer |
| CN114407533A (en) * | 2022-03-04 | 2022-04-29 | 无锡普瑞特喷印科技有限公司 | Two-stage ink box for glass spray painting equipment and working method thereof |
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| CN203157378U (en) * | 2013-03-06 | 2013-08-28 | 佛山市三水盈捷精密机械有限公司 | Ink supply system of ink jet printer |
| CN203600779U (en) * | 2013-11-05 | 2014-05-21 | 渭南秦亚印刷包装机械有限责任公司 | Ink-jet printing head negative pressure continuous ink supplying device |
| CN104999796A (en) * | 2014-04-16 | 2015-10-28 | 中国科学院沈阳自动化研究所 | Positive pressure ink supply control system and method for conductive printing ink |
| CN204605201U (en) * | 2015-01-28 | 2015-09-02 | 广东科达洁能股份有限公司 | The three blunt quantity control system of ceramic ink jet printer ink circulation |
| CN105984239A (en) * | 2015-01-28 | 2016-10-05 | 广东科达洁能股份有限公司 | Three-impulse control system of ceramic ink-jet printer ink path circulation |
| CN204547353U (en) * | 2015-02-15 | 2015-08-12 | 广东科达洁能股份有限公司 | Ceramic ink jet printer ink EGR |
| CN206201686U (en) * | 2016-10-10 | 2017-05-31 | 广东阿诺捷喷墨科技有限公司 | One kind three cavity negative pressure ink supply systems of circulation |
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