CN106808799B - A kind of nozzle and its cleaning method of non-contact inkjet printer - Google Patents
A kind of nozzle and its cleaning method of non-contact inkjet printer Download PDFInfo
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- CN106808799B CN106808799B CN201710103276.6A CN201710103276A CN106808799B CN 106808799 B CN106808799 B CN 106808799B CN 201710103276 A CN201710103276 A CN 201710103276A CN 106808799 B CN106808799 B CN 106808799B
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- Prior art keywords
- nozzle
- solvent
- detergent line
- ink
- control valve
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- 238000004140 cleaning Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 95
- 239000003599 detergent Substances 0.000 claims abstract description 74
- 239000007921 spray Substances 0.000 claims abstract description 69
- 238000011084 recovery Methods 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 29
- 238000007600 charging Methods 0.000 claims description 23
- 239000002699 waste material Substances 0.000 claims description 19
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 230000007812 deficiency Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 210000003813 thumb Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16552—Cleaning of print head nozzles using cleaning fluids
-
- 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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
- B41J2/16523—Waste ink transport from caps or spittoons, e.g. by suction
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
The invention discloses a kind of nozzles of non-contact inkjet printer, including nozzle boss, and it is set to nozzle and spray head cleaning device on nozzle boss, the nozzle is circumscribed with ink source, the spray head cleaning device includes solvent source, negative pressure source, first detergent line, second detergent line, first washer jet, the solvent source is connected with the first washer jet by the first detergent line, the negative pressure source is connected with the inside of the nozzle by the second detergent line, first washer jet is at least provided with one, and its solvent sprayed can reach the nozzle surface；Be provided in first detergent line for control solvent by the first control valve, the second control valve for controlling negative pressure is provided in second detergent line.The present invention can realize the nozzle of ink jet numbering machine the cleaning of the automatic ecto-entad for cleaning and being realized to nozzle top nozzle, improve cleaning efficiency by coordinating the program of ink jet numbering machine to control.The present invention also provides a kind of cleaning methods of the nozzle of non-contact inkjet printer.
Description
Technical field
The present invention relates to non-contact inkjet printer field, the nozzle of especially a kind of non-contact inkjet printer and its cleaning side
Method.
Background technology
Currently, the maintenance cleaning of non-contact inkjet printer nozzle is all manual cleaning, otherwise and do not have switching on and shutting down
There are the following problems for nozzle automatic cleaning function or automatic cleaning function, 1) it is clear to be only limited to pipeline in nozzle for automatic cleaning
It washes, does not have and the parts of nozzle working region (such as nozzle, pole of charging, deflecting plates) and nozzle surface are cleaned automatically
Function needs to carry out periodic maintenance by manual method, and working efficiency is low, and nozzle working region is ink exposed area, holds
It is easy to pollute；2) cleaning of nozzle is currently limited to cleaning agent leading to spray chamber from inside along pipeline, can only is unidirectional closing
Slave nozzle inner edge spray outward, when nozzle exit end blocks, often because nozzle interior sealing has a small amount of air, cleaning is molten
Agent cannot reach plugging point, can not be dissolved to dry ink, greatly reduce cleaning performance, usually required when blocking serious
Start ink jet numbering machine nozzle cleaning program and applies cleaning solvent in nozzle outer surface to implement in manual methods simultaneously；3) two above
Manual cleaning in the process is switched on nozzle cap, is unlimited, and cleaning application pressure is small by hand, can not be atomized, need to clean
Dosage is larger and unstable, and volatilization is serious, environmental pollution, and operator needs special labor protection, not safe enough, and generation is given up
Liquid cannot also recycle, and also not meet environmentally friendly needs.
Invention content
An object of the present invention is to be overcome the deficiencies in the prior art, by coordinating the program of ink jet numbering machine to control, energy
It is enough that the cleaning of automatic ecto-entad is realized to the nozzle of ink jet numbering machine and automatic cleaning is realized to nozzle surface, improve cleaning effect
Rate.
The second object of the present invention is to provide a kind of cleaning method of the nozzle.
The present invention can be by taking following technical scheme to be achieved：
A kind of nozzle of non-contact inkjet printer, including nozzle boss and the nozzle that is set on nozzle boss, outside the nozzle
It is connected to ink source, which is characterized in that it further includes having the spray head cleaning device being arranged on nozzle boss, the spray head cleaning device
Including solvent source, negative pressure source, the first detergent line, the second detergent line, the first washer jet, the solvent source and the first cleaning
Nozzle is connected by the first detergent line, and the negative pressure source is connected with the inside of the nozzle by the second detergent line, described
First washer jet is at least provided with one, and its solvent sprayed can reach the nozzle surface；First cleaning
Be provided on pipeline for control solvent by the first control valve, be provided with for controlling negative pressure in second detergent line
The second control valve.
Preferably, it further includes charging pole and deflecting electrode, the ink sprayed through the nozzle pass sequentially through charging pole and
Deflecting electrode；The spray head cleaning device further includes the second washer jet that sprayed solvent can reach deflecting electrode surface, institute
The second washer jet is stated at least provided with one, second washer jet is connected by third detergent line and the solvent source
Connect, be provided in the third detergent line for control solvent by third control valve.
Preferably, it further includes a spray chamber, and the nozzle is connected with the spray chamber, and one end of the spray chamber passes through
Four detergent lines are connected with the solvent source, and second detergent line is connected with the spray chamber, the 4th cleaning pipe
Road be provided with for control solvent by the 4th control valve, the 4th detergent line, spray chamber, the second detergent line are common
Constitute an interior detergent line channel.
Preferably, it further includes waste liquid recovery apparatus, if the waste liquid recovery apparatus include positive pressure source, air interface tube,
Dry collection port；The positive pressure source is connected by barotropic gas pipeline with air interface tube, is arranged on the barotropic gas pipeline
It is useful for the 5th control valve of control positive pressure, the air interface tube is set on nozzle boss；The collection port is set to described
In nozzle boss and for collecting the waste liquid in nozzle boss, collection port is connected by corresponding recovery pipe with the negative pressure source
It is logical, the control valve for controlling negative pressure is provided in the recovery pipe.
Preferably, it further include have one for receive by electrification deficiency and/or uncharged ink after the deflecting electrode
The accumulator tank of drop, the accumulator tank are connected to by the second recovery pipe with the negative pressure source, are arranged in second recovery pipe
It is useful for the 7th control valve of control negative pressure.
Preferably, it further includes having a columnar nozzle cap, the nozzle boss to be socketed in the nozzle cap；The spray
Be provided on headstock for by by deflecting electrode penetrate come ink droplet ink hole, the bottom surface of the nozzle cap be provided with it is out of ink
The corresponding strip spray orifice in hole and by rotate nozzle cap position to seal the gasket of ink hole.
Preferably, the injection diameter of first washer jet and the second washer jet is 0.3~0.5mm, and described molten
It is provided with positive pressure solvent pump between agent source and first washer jet, between solvent source and second washer jet.
A kind of cleaning method of the nozzle of non-contact inkjet printer, using a kind of spray of above-mentioned non-contact inkjet printer
Head includes the following steps：
(1) ink jet numbering machine is by controlling first control valve so that solvent reaches the first cleaning by the first detergent line
Nozzle, and be sprayed onto on the nozzle surface, the solvent that the ink of nozzle is cleaned, while being splashed is sprayed onto charging pole and surrounding, into
Row rinses；
(2) ink jet numbering machine is by controlling second control valve so that the nozzle interior being connected with second detergent line
Solvent for negative pressure, nozzle surface enters nozzle interior by nozzle surface, and dissolving is blocked in the ink of nozzle interior, realizes spray
Mouth is from flushing outside inside.
A kind of cleaning method of the nozzle of non-contact inkjet printer, using a kind of spray of above-mentioned non-contact inkjet printer
Head includes the following steps：
(1) ink jet numbering machine is by controlling the positive pressure solvent pump and the first control valve so that solvent passes through the first detergent line
The first washer jet is reached, and is sprayed onto on the nozzle surface, the solution of ejection forms liquid mist, the ink of nozzle is cleaned, together
When the solvent that splashes be sprayed onto charging pole and surrounding, be rinsed；
(2) ink jet numbering machine is by controlling second control valve so that the nozzle interior being connected with second detergent line
Solvent for negative pressure, nozzle surface enters nozzle interior by nozzle surface, and dissolving is blocked in the ink of nozzle interior, realizes spray
Mouth is from flushing outside inside；
(3) ink jet numbering machine is by controlling the positive pressure solvent pump and the 4th control valve so that solvent passes through the 4th detergent line
It sprays, is completed to nozzle by interior flushing outward into spray chamber, and by nozzle；Then, ink jet numbering machine passes through control described second
Control valve so that solvent is rinsed by the 4th detergent line of negative pressure pair, spray chamber, the second detergent line；
(4) ink jet numbering machine is by controlling the positive pressure solvent pump and third control valve so that solvent passes through third detergent line
The second washer jet is reached, and is ejected into deflecting electrode, the solution of ejection forms liquid mist, the solvent for being rinsed, while splashing
Its surrounding is cleaned；
(5) waste liquid that cleaning is formed flows into the collection port；Simultaneously after the completion of the cleaning of above-mentioned steps, ink jet numbering machine passes through
Control the 5th control valve so that the positive pressure air of the positive pressure source is entered by the air interface tube in nozzle, will be clear
It washes the solvent for remaining on nozzle or waste liquid drying or is blown into collection port；
(6) ink jet numbering machine generates negative pressure by controlling the control valve in recovery pipe, recovery pipe so that useless in collection port
Liquid is discharged by recovery pipe and is recycled.
Compared with prior art, the beneficial effects of the invention are as follows：By the way that solvent source, negative pressure source, the first cleaning spray is arranged
Mouth, the first detergent line, the second detergent line so that the solvent sprayed by the first washer jet is sprayed on nozzle surface, and negative
Potential source causes nozzle interior negative pressure so that the solvent of nozzle surface is externally entering inside, and dissolving is blocked in the ink of jet hole.
And the control by the controller on ink jet numbering machine to corresponding control valve, realize automatic cleaning, it is efficient.
By the way that the second washer jet is arranged, the working region for the vulnerable to pollution such as pole and deflecting electrode that charge can be carried out clear
It washes, and the injection diameter of the first washer jet and the second washer jet is set as 0.3~0.5mm, the solvent of ejection is closed
Liquid mist is formed in nozzle cap, disperse cleans up nozzle surface and nozzle inner cap surface in nozzle.
The second detergent line and the 4th detergent line are set on spray chamber by setting so that solvent can pass through cleaning politics, economics, organization, and ideology
It washes pipeline, spray chamber, nozzle to spray, carries out cleaning from inside to outside；By controlling the second control valve of the second detergent line, cause
Negative pressure so that the 4th detergent line of solvent pair, spray chamber, the second detergent line carry out inside cleaning.
By the way that waste liquid recovery apparatus is arranged, the waste liquid for cleaning formation flows into the collection port；The positive pressure air of positive pressure source is logical
It crosses the air interface tube to enter in nozzle, the solvent for remaining on nozzle or waste liquid drying will have been cleaned or is blown into collection port,
Ink jet numbering machine is by controlling the 6th control valve so that the waste liquid in collection port is discharged by recovery pipe to be recycled.
Description of the drawings
Fig. 1 is a kind of functional block diagram of the nozzle of non-contact inkjet printer of the present invention；
Fig. 2 is a kind of structural schematic diagram of the nozzle of non-contact inkjet printer of the present invention；
Fig. 3 is the structural schematic diagram at the back side visual angle of Fig. 2；
Fig. 4 is a kind of nozzle cap structural schematic diagram of non-contact inkjet printer of the present invention；
Fig. 5 is a kind of structural schematic diagram of the nozzle inner cover of non-contact inkjet printer of the present invention.
Reference sign：
10- nozzle boss, 11- ink holes, 12- nozzles, 13- ink boxes, 14- chargings pole, 15- deflecting electrodes, 16- solvents
Case, 17- negative pressure sources, 18- spray chambers, 19- accumulator tanks, the first detergent lines of 20-, the first control valves of 201-, the cleaning sprays of 202- first
Mouth, the second detergent lines of 21-, the second control valves of 211-, 22- third detergent lines, 221- third control valves, 222- second are cleaned
Nozzle, the 4th detergent lines of 23-, the 4th control valves of 231-, 30- barotropic gas pipelines, the 5th control valves of 301-, 31- first are returned
Closed tube road, the 6th control valves of 311-, the second recovery pipes of 32-, the 7th control valves of 321-, 33- third recovery pipes, 331- the 8th
Control valve, 41- positive pressure sources, 42- air interface tubes, (43,431,432,433)-collection port, 44- nozzle caps, 45- strip spray orifices,
46- gaskets, 47- positive pressure solvent pumps, 48- positive pressure ink pumps, the 8th control valves of 49-, 50- ring type seals, (51,52)-thumb
Refer to screw, 53- nozzle inner covers, 54- nozzle boss back cavities, the first screw holes of 55-, the second screw holes of 56-.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.Opposite, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element may be simultaneously present centering elements.Term as used herein "and/or" includes one or more relevant
Any and all combinations of Listed Items.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
As shown in Figs. 1-5, a kind of nozzle of non-contact inkjet printer of the present invention, the ink jet numbering machine includes at least one spray
Head and the solvent tank 16 being installed in the ink jet numbering machine main chassis, ink box 13, positive pressure solvent pump 47, positive pressure ink pumps 48.
Wherein, the effect of positive pressure solvent pump 47 is to need the pipeline of solvent to provide power to convey solvent.
A kind of nozzle of non-contact inkjet printer in the present embodiment, including nozzle boss 10 and be set on nozzle boss 10
Nozzle 12, the nozzle 12 are circumscribed with ink source, which further includes having the spray head cleaning device being arranged on nozzle boss 10, spray
Head cleaning device includes solvent source, negative pressure source, the first detergent line 20, the second detergent line 21, the first washer jet 202, molten
Agent source and the first washer jet 202 are connected by the first detergent line 20, and the inside of negative pressure source and nozzle 12 passes through the second cleaning
Pipeline 21 connects, and the first washer jet 202 is at least provided with one, and its solvent sprayed can reach 12 surface of nozzle,
The spray orifice of first washer jet 202 can be towards nozzle 12；It is provided in first detergent line 20 and passes through for controlling solvent
The first control valve 201, the second control valve 211 for controlling negative pressure is provided in the second detergent line 21.Solvent source is from spray
Solvent tank 16 in ink recorder introduces, and ink source is introduced from the ink box 13 in ink jet numbering machine.First control valve 201 and second is controlled
Valve 211 processed is controlled by the controller in nozzle.
The nozzle further includes spray chamber 18, charging pole 14 and deflecting electrode 15, and piezo-electric crystal, deflecting electrode are housed in spray chamber 18
15 provide high voltage power supply by ink jet numbering machine generates electric field.The ink sprayed through nozzle 12 passes sequentially through charging pole 14 and deflecting electrode
15；Spray head cleaning device further includes the second cleaning spray that sprayed solvent can reach charging pole 14 and/or 15 surface of deflecting electrode
Mouth 222, the second washer jet 222 are connect with solvent source by third detergent line 22, are arranged in third detergent line 22 useful
In control solvent by third control valve 221.The spray orifice of second washer jet 222 towards charging pole 14 or deflecting electrode 15,
The solvent that the spray orifice of the second washer jet 222 sprays can also be sprayed onto by the reflection of reflecting plate and filled by the way that reflecting plate is arranged
Electrode 14 and deflecting electrode 15.Third control valve 221 is controlled by the controller in nozzle.
The injection diameter of first washer jet 202 and the second washer jet 222 is 0.3~0.5mm, the solvent shape sprayed
At liquid mist so that solvent can not only spray to nozzle 12, charging pole 14, deflecting electrode 15, nozzle can also be full of, to entirely spraying
Head is cleaned.
Nozzle 12 is connected with spray chamber 18, and one end of spray chamber 18 is connected by the 4th detergent line 23 with solvent source, the
Two detergent lines 21 are connected with spray chamber 18, be provided in the 4th detergent line 23 for control solvent by the 4th control valve
231, the 4th detergent line 23, spray chamber 18, the second detergent line 21 collectively form an interior detergent line channel.4th control valve
231 are controlled by the controller in nozzle.
Preferably, which further includes waste liquid recovery apparatus, which includes positive pressure source 41, air interface tube
42, several collection ports, the waste liquid are the solvent waste liquid for having dissolved ink；Positive pressure source 41 passes through barotropic gas pipeline 30 and air
Interface tube 42 is connected, and the 5th control valve 301 for controlling positive pressure, air interface tube 42 are provided on barotropic gas pipeline 30
It is set on nozzle boss 10；Collection port is set in empty regions and for collecting the solvent waste liquid in nozzle boss, the clearance zone
Domain refers to constituting cavity by nozzle boss 10 and nozzle cap 44, which is interior containing nozzle 12, charging pole 14, deflecting electrode 15 etc.
Space.In the present embodiment, if there are four collection ports (43,431,432,433), wherein collection port (432,433) passes through first
Recovery pipe 31 is connected with negative pressure source, and the 6th control valve 311 for controlling negative pressure is provided in the first recovery pipe 31, receives
Ji Kou (432,433) is arranged in the bottom of empty regions, which is close to the side of spray chamber；Collection port is arranged on (43,431)
There is third recovery pipe 33, is provided with the 8th control valve 331 for controlling negative pressure in third recovery pipe 33, collection port (43,
431) it is arranged at the top of empty regions, which is close to the side of ink hole.5th control valve 301 is by the control in ink jet numbering machine
Device processed is controlled.6th control valve and the 8th control valve are controlled by the controller in ink jet numbering machine, are worked alternatively, to adapt to nozzle
The needs of recycling when upright or handstand.
The nozzle further includes having one to be used to receive by charging ink droplet that is insufficient or not charging after the deflecting electrode 15
Accumulator tank 19, accumulator tank 19 is connected to negative pressure source 17 by the second recovery pipe 32, is arranged in the second recovery pipe 32 useful
In the 7th control valve 321 of control negative pressure.7th control valve 321 is controlled by the controller in nozzle.
The nozzle boss 10 of the nozzle is socketed in the nozzle cap 44；It is provided on nozzle boss 10 for by by deflection electricity
The ink hole 11 of the ink come is penetrated in pole 15, and the bottom surface of nozzle cap 44 is provided with strip spray orifice 45 and gasket 46.When normal work,
When 11 aligned in position of strip spray orifice 45 and ink hole, ink sprays nozzle；When rotation nozzle cap 44, gasket 46 and ink hole 11
When overlapping, gasket 46 covers in ink hole 11, while by the ring type seal 50 being arranged on nozzle cap 44 so that nozzle cap
44 and nozzle boss 10 empty regions sealing, pass through the control of the controller on ink jet numbering machine so that the nozzle of ink jet numbering machine enter from
Dynamic cleaning model.Setting is there are two thumb screw (51,52) on nozzle cap 44, respectively with the first threaded hole on nozzle boss 10
55, the second threaded hole 56 matches, for assisting ink jet numbering machine to identify the installation condition of nozzle cap 44.When normal work, work as thumb
Screw 51 is connected with the first threaded hole 55, and thumb screw 52 is connected with the second threaded hole 56；Nozzle cap 44 is rotated so that gasket
46 cover in ink hole 11, and thumb screw 51 is connected with the second threaded hole, and thumb screw 52 is connected with the first threaded hole, at this time thumb
Refer to the sensing device transmitting signal being arranged on screw 51 and the second threaded hole so that control device control nozzle on nozzle machine into
Enter nozzle cleaning model, prevents cleaning maloperation.
Preferably, the negative pressure source 17 of the ink jet numbering machine is connected with ink box 13, can recycle the ink in accumulator tank 19
Enter ink box 13, is continuing with.It is also possible to which the devil liquor recovery that collection port is collected is recovered into ink box 13, continue to make
With.
Nozzle inner cover 53 is coupled by screw with nozzle boss 10, and nozzle boss back cavity 54 is sealed, and ensures nozzle normal work
Or when cleaning, the part in nozzle, pipeline and electric wire are encroached on from cleaning solvent and waste liquid.
When ink jet numbering machine works normally, the ink in ink box 13 is pressurizeed by positive pressure ink pumps 48 enters spray chamber via pipeline
18, and sprayed from nozzle 12, piezo-electric crystal is controlled by ink jet numbering machine, and the ink stream sprayed from nozzle 12 can be made just in charging pole
Ink droplet is fragmented among 14 slot, while pole 14 of charging can fill electricity appropriate with to ink droplet as needed under ink jet numbering machine control
Amount, the ink droplet of electrification pass through the high voltage electric field generated by deflecting electrode 15, it may occur that deflection, from ink hole 11 and strip spray orifice 45
It sprays, forms required character or pattern on base stock, ink droplet uncharged or that charging is seldom does not deflect then, by accumulator tank 19
Recycling is discharged through the second recovery pipe 32.This is recycled to ink jet numbering machine ink box 13, reuses.
In the present embodiment, in ink jet numbering machine startup or stopping process, by the control of ink jet numbering machine, opportune moment is set, just
Press solvent pump 47 can be by trace solvent by the first control valve 201, the first detergent line 20, the first washer jet 202 is ejected into
The exit surface of nozzle 12, the ink that the surface of nozzle 12 is dried up dissolve cleaning, while via the second cleaning inside nozzle 12
Pipeline 21 controls the second control valve 211 by ink jet numbering machine and controls unicom negative pressure source 17, and the solvent on nozzle 12 is inhaled into nozzle 12
Inside is realized and carries out nozzle 12 from flushing outside inside.44 formal dress of nozzle cap in the process, strip spray orifice 45 and ink hole
11 alignment.This dissolving is controlled with from the ink jet numbering machine that is flushed through outside inside, usually of short duration, the dosage very little of interval,
It will not be overflowed from strip spray orifice 45.
In the present embodiment, when encountering nozzle pollution, the failures such as blocking of nozzle 12 need when cleaning or determine nozzle
When phase maintenance or maintenance process, nozzle cap 44 instead fills, and nozzle cap 44 is close by gasket 46, ring type seal 50 and nozzle boss 10
Envelope.
On the one hand, positive pressure solvent pump 47 can by solvent by the first control valve 201, the first detergent line 20 after, from first
Washer jet 202 is ejected into the exit surface of nozzle 12, and the ink that the surface of nozzle 12 is dried up dissolves cleaning, while spray chamber 18
Via the second detergent line 21, negative pressure source 17 is connected to by the control of the second control valve of ink jet numbering machine pair 211, above-mentioned solvent is inhaled into
Nozzle 12 is realized and carries out nozzle 12 from flushing outside inside, while the solvent to splash can be sprayed onto in charging extremely, be completed to surrounding
Flushing, it is this dissolving with rinse can be it is intermittent, also but it is continuous；
On the other hand, solvent can be by being ejected into deflection electrode 15 simultaneously after third detergent line 22 from the second washer jet 222
Surrounding is sputtered, realizes that the working regions such as deflecting electrode 15, accumulator tank 19 and surrounding are rushed to the charging pole 14 of most vulnerable to pollution
It washes, due to the spray orifice very little of the first and second washer jets, the solvent ejected can form liquid mist in closed nozzle cap 44,
Disperse cleans up nozzle surface and nozzle interior surface in nozzle.The waste liquid that cleaning is formed passes through negative pressure in ink jet numbering machine
The effect in source 17 and the control of corresponding control valve are collected by collection port (432,433) or collection port (43,431), are recycled to
Ink jet numbering machine is reused.Collection port (432,433) is distributed in the both ends of nozzle empty regions with collection port (43,431), passes through
It works alternatively, is suitable for nozzle and is in the cleaning directly put, stand upside down or keep flat etc. under various states.
After the completion of above-mentioned cleaning process, positive pressure air can pass through the 5th control valve 301, air interface tube by ink jet numbering machine
42 introduce nozzle, and the cleaning agent remained on after cleaning in nozzle is dried up or blown away, is recycled via third recovery pipe, first time
It recycles on closed tube road.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as, it is noted that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of nozzle of non-contact inkjet printer, including nozzle boss and the nozzle that is set on nozzle boss, the nozzle are external
There is ink source, which is characterized in that it further includes having the spray head cleaning device being arranged on nozzle boss, the spray head cleaning device packet
Include solvent source, negative pressure source, the first detergent line, the second detergent line, the first washer jet, the solvent source and the first cleaning spray
Mouth is connected by the first detergent line, and the negative pressure source is connected with the inside of the nozzle by the second detergent line, and described
One washer jet is at least provided with one, and its solvent sprayed can reach the nozzle surface；First cleaning pipe
Road be provided with for control solvent by the first control valve, be provided with for controlling negative pressure in second detergent line
Second control valve；It further includes charging pole and deflecting electrode, and the ink sprayed through the nozzle passes sequentially through charging pole and deflection
Electrode, the spray head cleaning device further include the second washer jet that sprayed solvent can reach deflecting electrode surface, and described
Two washer jets are connect by third detergent line with the solvent source, and second washer jet is at least provided with one, institute
State be provided in third detergent line for control solvent by third control valve；It further includes a spray chamber, the nozzle
It is connected with the spray chamber, one end of the spray chamber is connected by the 4th detergent line with the solvent source, and described second is clear
Pipeline is washed with the spray chamber to be connected, be provided in the 4th detergent line for control solvent by the 4th control valve,
4th detergent line, spray chamber, the second detergent line collectively form an interior detergent line channel；It further includes devil liquor recovery
Device, the waste liquid recovery apparatus include positive pressure source, air interface tube, several collection ports, and the positive pressure source passes through barotropic gas
Pipeline is connected with air interface tube, and the 5th control valve for controlling positive pressure is provided on the barotropic gas pipeline, described
Air interface tube is set on nozzle boss, and the collection port is set in the nozzle boss and useless in nozzle boss for collecting
Liquid, collection port are connected with the negative pressure source by corresponding recovery pipe, are provided in the recovery pipe for controlling
The control valve of negative pressure；It further include have one for receive by electrification deficiency and/or uncharged ink droplet after the deflecting electrode
Accumulator tank, the accumulator tank is connected to the negative pressure source by the second recovery pipe, is provided in second recovery pipe
The 7th control valve for controlling negative pressure.
2. a kind of nozzle of non-contact inkjet printer according to claim 1, which is characterized in that it further includes having a cylinder
The nozzle cap of shape, the nozzle boss are socketed in the nozzle cap；It is provided with for by by deflecting electrode on the nozzle boss
The ink hole of the ink droplet come is penetrated, the bottom surface of the nozzle cap is provided with strip spray orifice corresponding with ink hole and passes through rotation
Nozzle cap position is to seal the gasket of ink hole.
3. a kind of nozzle of non-contact inkjet printer according to claim 2, which is characterized in that first washer jet
Be 0.3~0.5mm with the injection diameter of the second washer jet, and between the solvent source and first washer jet, solvent
It is provided with positive pressure solvent pump between source and second washer jet.
4. a kind of cleaning method of the nozzle of non-contact inkjet printer, using a kind of contactless coding described in claim 1
The nozzle of machine, which is characterized in that include the following steps：
(1) ink jet numbering machine is by controlling first control valve so that and solvent reaches the first washer jet by the first detergent line,
And be sprayed onto on the nozzle surface, the solvent that the ink of nozzle is cleaned, while being splashed is sprayed onto charging pole and surrounding, is rushed
It washes；
(2) ink jet numbering machine is by controlling second control valve so that the nozzle interior being connected with second detergent line is negative
Pressure, the solvent of nozzle surface enter nozzle interior by nozzle surface, and dissolving is blocked in the ink of nozzle interior, realize nozzle from
Flushing inside outside.
5. a kind of cleaning method of the nozzle of non-contact inkjet printer, using a kind of contactless coding described in claim 3
The nozzle of machine, which is characterized in that include the following steps：
(1) ink jet numbering machine is by controlling the positive pressure solvent pump and the first control valve so that solvent is reached by the first detergent line
First washer jet, and be sprayed onto on the nozzle surface, the solution of ejection forms liquid mist, and the ink of nozzle is cleaned, and flies simultaneously
The solvent splashed is sprayed onto charging pole and surrounding, is rinsed；
(2) ink jet numbering machine is by controlling second control valve so that the nozzle interior being connected with second detergent line is negative
Pressure, the solvent of nozzle surface enter nozzle interior by nozzle surface, and dissolving is blocked in the ink of nozzle interior, realize nozzle from
Flushing inside outside；
(3) ink jet numbering machine is by controlling the positive pressure solvent pump and the 4th control valve so that solvent is entered by the 4th detergent line
Spray chamber, and sprayed by nozzle, it completes to nozzle by interior flushing outward；Then, ink jet numbering machine is by controlling second control
Valve so that solvent is rinsed by the 4th detergent line of negative pressure pair, spray chamber, the second detergent line；
(4) ink jet numbering machine is by controlling the positive pressure solvent pump and third control valve so that solvent is reached by third detergent line
Second washer jet, and it is ejected into deflecting electrode, the solution of ejection forms liquid mist, is rinsed, while the solvent to splash is to it
Surrounding is cleaned；
(5) waste liquid that cleaning is formed flows into the collection port；Simultaneously after the completion of the cleaning of above-mentioned steps, ink jet numbering machine passes through control
5th control valve so that the positive pressure air of the positive pressure source is entered by the air interface tube in nozzle, will have been cleaned
The solvent or waste liquid for remaining on nozzle are dried up or are blown into collection port；
(6) ink jet numbering machine generates negative pressure by controlling the control valve in recovery pipe, recovery pipe so that the waste liquid in collection port is logical
Cross recovery pipe discharge recycling.
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| CN201710103276.6A CN106808799B (en) | 2017-02-24 | 2017-02-24 | A kind of nozzle and its cleaning method of non-contact inkjet printer |
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| CN109016846A (en) * | 2017-12-22 | 2018-12-18 | 合肥欣奕华智能机器有限公司 | Blow head maintenance device, printing device and nozzle maintenance method |
| CN108715099A (en) * | 2018-03-12 | 2018-10-30 | 浙江慕容时尚家居有限公司 | A kind of processing technology of top grade packing carton digit printing |
| CN115782405A (en) * | 2018-06-06 | 2023-03-14 | 株式会社日立产机系统 | Ink jet recording apparatus and head cleaning apparatus |
| CN108819489B (en) * | 2018-07-27 | 2024-03-22 | 上海汉图科技有限公司 | Connection structure, ink supply system and printer |
| JP7280677B2 (en) | 2018-09-27 | 2023-05-24 | 株式会社日立産機システム | Inkjet recording device |
| CN109177497B (en) * | 2018-10-12 | 2023-08-25 | 广州易达包装设备有限公司 | Cleaning device for spray head of ink jet printer and control method thereof |
| CN109515000A (en) * | 2019-01-04 | 2019-03-26 | 广州易达包装设备有限公司 | A kind of anti-blocking ink jet numbering machine |
| CN112339436A (en) * | 2019-12-19 | 2021-02-09 | 广东聚华印刷显示技术有限公司 | Method and apparatus for cleaning ink jet print head |
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