CN103085494A - Method, mechanism, and device for maintaining inkjet head - Google Patents
Method, mechanism, and device for maintaining inkjet head Download PDFInfo
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- CN103085494A CN103085494A CN2012105668782A CN201210566878A CN103085494A CN 103085494 A CN103085494 A CN 103085494A CN 2012105668782 A CN2012105668782 A CN 2012105668782A CN 201210566878 A CN201210566878 A CN 201210566878A CN 103085494 A CN103085494 A CN 103085494A
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- inkjet head
- negative pressure
- lid
- printing ink
- nozzle
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Images
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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
-
- 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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/1707—Conditioning of the inside of ink supply circuits, e.g. flushing during start-up or shut-down
-
- 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
Landscapes
- Ink Jet (AREA)
Abstract
A method, mechanism, and device for maintaining an inkjet head, which can perform excellent application and in which ink discharge performance is recovered and come-out of a nozzle does not occur. [MEANS FOR SOLVING PROBLEMS] A maintenance method for drawing liquid by covering a nozzle of an inkjet head by a cap and generating a negative pressure, the method having a waste liquid tank for allowing the cap and negative pressure generation means to be communicated with each other, a low viscous liquid containing section communicating with the inkjet head, an ink containing section communicating with the inkjet head, and liquid selection means for allowing the inkjet head to be alternatively communicated with the low viscous liquid containing section or the ink containing section. In the maintenance method, mechanism, and device, the low viscous liquid containing section and the ink containing section are communicated with each other, a negative pressure is generated in the cap to fill the inkjet head with a low viscous liquid, and then the ink containing section and the inkjet head are communicated with each other to fill the inkjet head with ink.
Description
The application is that application number is 200780047862.8, and the applying date is on December 26th, 2007, and denomination of invention is divided an application for the Chinese patent application of " method for maintaining of inkjet head and mechanism and device ".
Technical field
The present invention relates to a kind ofly when print cartridge is installed/changed, inkjet head is filled printing ink, maybe when printing is bad, the dust of inkjet head, dry printing ink, bubble etc. removed method and mechanism and the device of (below, title " maintenance ") sometimes.
Background technology
Generally, in ink-jet recording apparatus, be provided with maintenance agency in order to keep the printing ink discharge performance.Existing maintenance agency is known to after the nozzle face of inkjet head is covered by lid, then makes the action of negative pressure extracting pump, and to the nozzle face effect negative pressure suction force of inkjet head, from inkjet head side recover waste ink.
For example, disclose following structure in patent documentation 1, having comprised: cover the nozzle face of inkjet head lid, be connected in via tube connector this lid the printing ink outlet the negative pressure extracting pump and be connected in this negative pressure extracting pump and with the spent ink groove of the spent ink recovery of aspirating.
And in patent documentation 2, disclosed ink-jet printer comprises: the printing head of a plurality of nozzles of tool; Have with common peristome and a plurality of pump orifice of a plurality of nozzles of printing head and make peristome connect airtight the lid that forms confined space in nozzle face; Via a plurality of pump orifices of lid at least one draw-off pump from a plurality of nozzle suction printing ink; And the printing ink stream that the pump orifice of lid is connected with draw-off pump; Wherein, go out printing ink and medium is carried out dot lattice printing by the nozzle ejection of printing head, when electric power starting or make in case of necessity the peristome of lid connect airtight nozzle, and aspirated by draw-off pump.
And, disclose in patent documentation 3 at the suction lid a plurality of pump orifices have been set, control by each valve on-off action to the access of each pump orifice, can when importing the initial stage, printing ink just printing ink suitably can be filled in all passages, and when periodic cleaning, near the shower nozzle end that can be easier to be detained from bubble passage, efficient is preferably removed bubble.
Patent documentation 1: Japanese patent laid-open 7-81089 communique
Patent documentation 2: Japanese patent laid-open 7-304191 communique
Patent documentation 3: No. 3800855 communique of Japan Patent
Summary of the invention
(problem that invention will solve)
When the situation of the printing ink that contains the solid-state part such as pigment because the higher mobility of printing ink of viscosity own is relatively poor, therefore exists and fill time-consuming problem, and in order to keep in repair the essential problems that consume a large amount of high price printing ink.
And, when being made as negative pressure in lid, if the adhesion of shower nozzle face and lid is poor, exists ambient atmos to sneak into and can't obtain the problem of abundant suction force.
And, after maintenance, be in lid under the state of negative pressure, if lid is separated, air pressure in lid just sharply changes, and corresponding with this variation, the printing ink of filling in each nozzle of shower nozzle just vibrates, thereby just be involved in air from each nozzle at this moment, thereby exist bubble to enter once again the interior problem of shower nozzle.
The present invention is in order to solve above-mentioned technical matters, and its purpose is to provide a kind of and can replys the printing ink discharge performance and method for maintaining and mechanism and the device that nozzle comes off, also can carry out the inkjet head of good coating can not occur.
(technical scheme of technical solution problem)
The method for maintaining of the inkjet head of the present invention the 1st aspect, to utilize lid to cover at the nozzle that inkjet head has, and produce negative pressure and with the method for maintaining of liquid suction, it is characterized in that being provided with: be communicated in above-mentioned lid and negative pressure generating device waste liquid tank, be communicated in above-mentioned inkjet head the low viscosity liquid storage unit, be communicated in the ink containment section of above-mentioned inkjet head and above-mentioned inkjet head selected a liquid switching mechanism that is communicated with above-mentioned low viscosity liquid storage unit or above-mentioned ink containment section; And, above-mentioned low viscosity liquid storage unit is connected with above-mentioned inkjet head, and makes above-mentioned lid produce negative pressure, thereby above-mentioned inkjet head is filled low viscosity liquid, then, above-mentioned ink containment section is connected with above-mentioned inkjet head, above-mentioned inkjet head is filled printing ink.
The method for maintaining of the inkjet head of the present invention the 2nd aspect is characterized in that, aspect the present invention the 1st in, above-mentioned low viscosity liquid is the solvent of printing ink.
The method for maintaining of the inkjet head of the present invention the 3rd aspect is characterized in that, aspect the present invention the 1st or the 2nd in, the aforesaid liquid switching mechanism is equipped near above-mentioned inkjet head.
The method for maintaining of the inkjet head of the present invention the 4th aspect, to utilize lid to cover at the nozzle that inkjet head has, and produce negative pressure and with the method for maintaining of liquid suction, it is characterized in that being provided with: lid, above-mentioned lid has and the affixed framework 22 of above-mentioned inkjet head butt and the abutting member 21 that is made of elastomer, above-mentioned abutting member and removable support frame freely 22 and the supporting member 23 that is made of elastomer, and, making under above-mentioned lid and ink-jet bearing surface phase tightlock status, liquid is aspirated.
The method for maintaining of the inkjet head of the present invention the 5th aspect is characterized in that, aspect the present invention the 4th in, above-mentioned abutting member 21 is made of the rubber-like elastic body of Xiao Shi A hardness 40～80 degree.
The method for maintaining of the inkjet head of the present invention the 6th aspect is characterized in that, aspect the present invention the 4th or the 5th in, above-mentioned supporting member 23 is that 40～80 elastomer consists of by needle penetration.
The method for maintaining of the inkjet head of the present invention the 7th aspect, be to utilize lid to cover at the nozzle that inkjet head has, and produce negative pressure and with the method for maintaining of liquid suction, it is characterized in that, when the liquid suction finishes, according to the preset signals waveform, the negative pressure in lid is returned back to atmospheric pressure.
The method for maintaining of the inkjet head of the present invention the 8th aspect, it is characterized in that, in either side aspect the present invention the 1st to the 7th, during from after liquid suction finishes till the beginning application step, under the state that said nozzle is utilized above-mentioned lid cover, to supplying liquid in above-mentioned lid, prevent the ink setting that the said nozzle front end exposes.
The maintenance agency of the inkjet head of the present invention the 9th aspect, to utilize lid to cover at the nozzle that inkjet head has, and produce negative pressure and with the maintenance agency of liquid suction, it is characterized in that comprising: be connected to above-mentioned inkjet head and cover the lid of said nozzle; Make above-mentioned lid produce the negative pressure generating device of negative pressure; Be communicated in the waste liquid tank of above-mentioned lid and above-mentioned negative pressure generating device; Make the cover body opening/closing mechanism of above-mentioned lid and above-mentioned inkjet head butt or non-butt; Be communicated in the low viscosity liquid storage unit of above-mentioned inkjet head; The ink containment section that is communicated with above-mentioned inkjet head; Make above-mentioned inkjet head select a liquid switching mechanism that is communicated with above-mentioned low viscosity liquid storage unit or above-mentioned ink containment section; And the control part that these actions are controlled; Above-mentioned control part makes above-mentioned low viscosity liquid storage unit be connected with above-mentioned inkjet head, and make above-mentioned lid produce negative pressure and above-mentioned inkjet head is filled low viscosity liquid, above-mentioned ink containment section is connected with above-mentioned inkjet head, above-mentioned inkjet head is filled printing ink.
The maintenance agency of the inkjet head of the present invention the 10th aspect is characterized in that, aspect the present invention the 9th in, above-mentioned low viscosity liquid is the solvent of printing ink.
The maintenance agency of the inkjet head of the present invention the 11st aspect is characterized in that, aspect the present invention the 9th or the 10th in, the aforesaid liquid switching mechanism is equipped near above-mentioned inkjet head.
The maintenance agency of the inkjet head of the present invention the 12nd aspect, to utilize lid to cover at the nozzle that inkjet head has, and produce negative pressure and with the maintenance agency that liquid aspirates, it is characterized in that comprising: be connected to above-mentioned inkjet head and cover the lid of said nozzle; Make above-mentioned lid produce the negative pressure generating device of negative pressure; Be communicated in the waste liquid tank of above-mentioned lid and above-mentioned negative pressure generating device; Make the cover body opening/closing mechanism of above-mentioned lid and above-mentioned inkjet head butt or non-butt; Be communicated in the ink containment section of above-mentioned inkjet head; And the control part that these actions are controlled; Above-mentioned lid has: the abutting member 21 that is connected to above-mentioned inkjet head and is made of elastomer; The framework 22 that above-mentioned abutting member is affixed; And the removable supporting member 23 that supports freely above-mentioned framework 22 and consisted of by elastomer.
The maintenance agency of the inkjet head of the present invention the 13rd aspect is characterized in that, aspect the present invention the 12nd in, above-mentioned abutting member 21 is made of the rubber-like elastic body of Xiao Shi A hardness 40～80 degree.
The maintenance agency of the inkjet head of the present invention the 14th aspect is characterized in that, aspect the present invention the 12nd or the 13rd in, above-mentioned supporting member 23 is that 40～80 elastomer consists of by needle penetration.
The maintenance agency of the inkjet head of the present invention the 15th aspect, to utilize lid to cover at the nozzle that inkjet head has, and produce negative pressure and with the maintenance agency of liquid suction, it is characterized in that comprising: be connected to above-mentioned inkjet head and cover the lid of said nozzle; Make above-mentioned lid produce the negative pressure generating device of negative pressure; Be communicated in the waste liquid tank of above-mentioned lid and above-mentioned negative pressure generating device; Make the cover body opening/closing mechanism of above-mentioned lid and above-mentioned inkjet head butt or non-butt; Be communicated in the ink containment section of above-mentioned inkjet head; And the control part that these actions are controlled; Above-mentioned control part is controlled above-mentioned negative pressure generating device according to the preset signals waveform, the negative pressure in above-mentioned lid is returned back to atmospheric mode.
The maintenance agency of the inkjet head of the present invention the 16th aspect, it is characterized in that, in either side aspect the present invention the 9th to the 15th, have carrying out the conveying mechanism of liquid supply in above-mentioned lid, above-mentioned control part from after liquid suction finishes till the beginning application step during, utilizing above-mentioned lid to cover under the state of said nozzle, to carrying out the liquid supply in above-mentioned lid.
The device of the present invention the 17th aspect has the maintenance agency of the inkjet head of either side in the present invention the 9th to the 16th aspect.
(effect of invention)
According to the present invention, can in the situation that not sneak into bubble, carry out printing ink and fill.
And the present invention can reduce the ink consumption amount of following maintenance to cause, and can shorten the needed time of maintenance.
Description of drawings
Fig. 1 is the structural map of the maintenance agency of embodiment 1.
Fig. 2 is the perspective structural map of lid.
The signal waveform of Fig. 3 for exporting from the machine type of embodiment 1.
Fig. 4 is the filling flow process of embodiment 1.
Fig. 5 is the structural map of the maintenance agency of embodiment 2.
Fig. 6 is the approximate three-dimensional map of desktop ink-jet coating apparatus that is equipped with the maintenance agency of embodiment 2.
Symbol description
The specific embodiment
Maintenance agency of the present invention can be used in various ink mist recordings, below take ink-jet printer as example, describe implementing better form of the present invention.
Maintenance agency of the present invention is carried out printing ink to inkjet head 1 and is filled when print cartridge is installed/changed, maybe when printing when bad removals such as the dust of inkjet head 1, dry printing ink, bubbles.Inkjet head 1 comprises by extended cylinder or the single or multiple nozzles that consist of in plane middle punch etc.
Maintenance agency of the present invention comprises: liquid switching mechanism 4 and the 2nd groove that stores low viscosity liquid 32; Switch printing ink 31 and low viscosity liquid 32 by liquid switching mechanism 4, just can follow the liquid filling of maintenance.Therefore, before the interior filling printing ink 31 to inkjet head 1, at first utilize the higher low viscosity liquid of mobility 32 to fill and with after bubble removal, just can carry out the filling of printing ink 31, thus, not only the ink consumption amount can be cut down, also the printing ink filling time can be shortened.
Generally, the printing ink that uses of ink-jet printer can be categorized as dyestuff or pigment.So-called " dyestuff " refers to utilize carrier medium to disperse according to molecule or fused colouring agent.Carrier medium at room temperature is in a liquid state or is solid-state.Usually the carrier medium of using is the mixture of water or water and organic cosolvent.Generally take water as principal component, and contain therein colouring agent and under the purpose that prevents situations such as stopping up such as wetting agents such as glycerine.In the situation that carrier medium makes water, generally water-fast fastness shortcoming on the low side also appears in this kind printing ink.
So-called " pigment " can disperse or suspend with the small-particle form though refer to be insoluble in carrier medium, and is generally cohesion and deposited phenomenon can not occur, and is the colouring agent of stabilisation by the use of dispersant.This kind compound majority is known, uses interfacial agent or dispersant to carry out corpusculed the pigment such as organic pigment or carbon black such as having, and the pigment ink that uses by being scattered in the medium such as water and as colouring agent etc.
Maintenance agency of the present invention is no matter dyestuff or pigment are all applicable.The viscosity of printing ink is take the low viscosity of tens of cps degree as main flow, if but under the prerequisite of ejection of dispersing, also more than the medium viscosity of applicable hundreds of cps degree.
In addition, the present invention is also applicable to such as to the wiring pattern printing of printed base plate, be lubricated to micro parts the functional ink that agent coating or the situations such as the printing of outdoor light resistance display material, UV fixed oil ink print are used.
And, maintenance agency of the present invention, the negative pressure generating device that possesses electropneumatic formula adjuster 51 that capable of regulating external signal waveform patterns flow is arranged and can carry out negative pressure adjustment and be consisted of by injector 52 according to this flow value.Existing maintenance agency is because make the negative pressure in lid 2 return to sharp atmospheric pressure, thereby the flow of the printing ink 31 of discharging from nozzle 6 also sharply stops, the fierce vibration of the meniscus of nozzle 6 front ends (liquid bridge), produce (sneaking into again) bubble this moment in stream, but in the present invention, because the negative pressure in lid 2 can be returned to atmospheric pressure according to required waveform signal, thereby can not give vibration to the meniscus of nozzle 6 front ends, can prevent that bubble from sneaking into again.
But when carrying out the filling of printing ink 31 according to negative pressure, the adhesion that the shower nozzle face of inkjet head 1 and lid are 2 is important.By consist of the abutting member 21 of lid 2 with the high rigidity elastomer, though can promote adhesion, in the situation that be made of the high rigidity elastomer, the inclination that has shower nozzle face and lid 2 produces greatly the problem in gap.On the other hand, if the hardness of the abutting member 21 of lid 2 is softening, just the gap occurs because negative pressure causes abutting member 21 to deform.
Therefore, in the present invention, by being set as the structure of the inclination that can follow the shower nozzle face, just can positively reach adhesion and the sealing of lid 2.Namely, the abutting member 21 that connects with the shower nozzle face is made of the elastomer that hardens, therefore can improve adhesion, and support abutting member 21(and framework 22) supporting member 23 supported by softening elastomer, therefore have the free degree of the inclination that can follow the shower nozzle face, and can keep sealing.
Below, by embodiment, detailed content of the present invention is described, but the present invention is not subjected to any restriction of these embodiment.
Fig. 1 is the structural map of maintenance agency of the ink-jet coating apparatus of the present embodiment.
The maintenance agency of the present embodiment is additional in above-mentioned existing structure: utilize communication member 9 be communicated in the 2nd groove 12 of inkjet head 1 and will select inkjet head 1 and being communicated with of the 1st groove 11 or the 2nd groove 12 a liquid switching mechanism 4 that switches.To store the initial low viscosity liquid 32 that flows into when beginning to keep in repair in the 2nd groove 12.In the present embodiment, low viscosity liquid 32 uses the solvent (detergent remover) of dissolving printing ink 31.Thus, even the situation that printing ink 31 solidifies in stream solubilized still.
And as shown in Figure 2, the lid 2 of the present embodiment constitutes has the free degree that can follow the shower nozzle face tilt.
The abutting member 21 that connects with the shower nozzle face is made of the rubber of elastomeric Xiao Shi A hardness 40～80 degree of sclerosis (best 50～70 degree) (JIS K 6253 specifications), utilize such as the modes such as bonding or spiral shell is solid be installed in framework 22 above.
Framework 22 is by utilizing the supporting member 23 that consists of such as affixed softening elastic components (for example rubber or spring) of mode such as bonding or spiral shell are solid to support.Supporting member 23 is for the alignment error (three-dimensional tilt) of the nozzle face that can follow inkjet head 1, preferably needle penetration to reach 40～80(the best be 50～70 degree).Supporting member 23 is fixed in tabular installation component 24.The suction that configures at least more than one in the bottom surface sections of framework 22 is with through hole 25 and the joint 26 that can be connected in communication member 9.
According to the lid 2 of the present embodiment as constituted above, can be in the situation that adhesion and sealing be completely guaranteed in the impact that not tilted by nozzle face.
The negative pressure generating device of the present embodiment is made of signal generation component 15, pressure transfer pump 16, adjuster 51 and injector 52, is communicated in lid 2 via waste liquid tank 14.In addition, the muffler 53 that negative pressure generating device also can additional absorption air sound.
A plurality of pattern times and waveform voltage signal are set and logined to signal generation component 15, and only can select, export arbitrary pattern from the pattern of a plurality of logins.Adjuster 51 can corresponding to the signal waveform voltage of signal generation component 15, carry out the pressure supply.Signal generation component 15 also can be by consisting of such as pulse generator, PC etc.
Even do not control by 51 pairs of negative pressure that produced by injector 52 of adjuster, in the situation that keep certain pressure from adjuster 51, by to adjusting in the amount of restriction of the set choke valve of the waste side of injector 52, also can carry out the control of negative pressure.
The negative pressure generating device of the present embodiment is characterised in that and makes the interior negative pressure that produces of lid 2 return back to lenitively atmospheric pressure.That is, in the present embodiment, by sending the signal generation component 15 of preset signals waveform, produce lenitively the negative pressure variation in lid 2, just can prevent sneaking into again of bubble thus.
Under the prerequisite of the negative pressure moderate change of the signal waveform that sets in making lid 2, can be linearity, curve, also can be the signal waveform of trickle phasic Chang.The curve waveform is Sin waveform as shown in Figure 3.As shown in Fig. 3 (a), if will be made as the Sin waveform from the signal waveform of signal generation component 15 outputs, the just variation as shown in Fig. 3 (b) of pressure of supplying from adjuster 51, and the negative pressure of injector 52 is as shown in Fig. 3 (c), can prevent from giving vibration to the meniscus of nozzle 6 front ends of inkjet head 1.
Detailed content for the service sequence of the present embodiment describes according to Fig. 4.Below, when installing/changing for print cartridge, the filling flow process at when replenishing (during the initial stage and printing ink) describes.
The 1st stage
At first, printing ink 31 is filled in communication member 9.Make the 1st valve 41 of liquid switching mechanism 4 be opening, and (step 1) start negative pressure generating device according to Preset Time, makes the interior formation negative pressure of lid 2, and printing ink 31 is directed in coupling member 9 (step 2) for closed condition to make the 2nd valve 42.Produce by the negative pressure of carrying out Preset Time, printing ink 31 just is filled to the 1st valve 41 part place (step 3) of communication member 9.Herein, so-called " Preset Time " is the time printing ink 31 arrives the 1st valve 41 of communication member 9 from the 1st groove 11 till.Through after Preset Time, produce by stopping negative pressure, just be returned to atmospheric pressure in lid 2, and stop suction (step 4).In addition, the negative pressure variation that stops not needing to produce mitigation that in the 1st stage, negative pressure produces.
The 2nd stage
Secondly, low viscosity liquid 32 is filled in nozzle 6.Make the 1st valve 41 of liquid switching mechanism 4 be closed condition, and (step 5) starts negative pressure generating device according to Preset Time, makes the interior formation negative pressure of lid 2, and carries out the filling (step 6) of low viscosity liquid 32 for opening to make the 2nd valve 42.Produce by the negative pressure of carrying out Preset Time, low viscosity liquid 32 recharges (step 7) in inkjet head 1 after being filled in communication member 9.Herein, so-called " Preset Time " is certain time of discharging from the front end of nozzle 6 of low viscosity liquid 32.Through after Preset Time, stop negative pressure and produce, just be returned to atmospheric pressure in lid 2 thus, and stop suction (step 8).In addition, the negative pressure variation that stops not needing to produce mitigation that in the 2nd stage, negative pressure produces.
The 3rd stage
At last, printing ink 31 is filled in nozzle 6.Make the 1st valve 41 of liquid switching mechanism 4 be opening, and make the 2nd valve 42 be closed condition (step 9), according to Preset Time and signal waveform, negative pressure generating device is started, make the interior formation negative pressure of lid 2, and the printing ink 31 through being filled to the 1st valve 41 is directed in inkjet head 1(step 10).Produce by the negative pressure of carrying out Preset Time, printing ink 31 just is filled in (step 11) in inkjet head 1.Herein, so-called " Preset Time " is certain time of discharging from the front end of nozzle 6 of printing ink 31.When through after Preset Time, just according to the preset signals waveform, negative pressure is produced stop lenitively, just will be returned to lenitively atmospheric pressure in lid 2 thus, and stop suction (step 12).Herein, the preset signals waveform is above-mentioned disclosed Sin waveform, but is not limited to this.
Through above order, just the bubble of 41, the 1st groove 11 and the 1st valve is evicted from the 1st stage, convenient for the bubble discharge of low viscosity liquid 32 with 6, the 2nd groove and nozzle in the 2nd stage, fill printing ink in the 3rd stage, and according to the preset signals waveform, negative pressure is discharged, just can in the situation that have no residual bubble, carry out the filling of printing ink 31 to inkjet head 1 thus.
In addition, the maintenance of the situation beyond when print cartridge is installed/changed is not because needed for the 1st stage, as long as thereby carried out for the 2nd and the 3rd stage.When print cartridge is installed/changed, if printing ink does not arrive to liquid switching mechanism 4, because bubble will be filled in inkjet head 1, thereby will need for the 1st stage.
Fig. 5 is the structural map of the maintenance agency of the present embodiment, and Fig. 6 is the approximate three-dimensional map of desktop ink-jet coating apparatus that carries the maintenance agency of the present embodiment.
The device of the present embodiment is equipped on Z direction moving assembly 64 at 3 inkjet heads 1 arranging on Y-direction as shown in Figure 6.Workbench 61 is mobile on Y-direction, and Z direction moving assembly 64 utilizes directions X moving assembly 63 set on beam 62 freely, moves freely on directions X.3 to ground separate relative with inkjet head 1 of lid 2 set.In Fig. 6, symbol 11 is the 1st grooves that store printing ink 31, and symbol 12 is the 2nd grooves that store low viscosity liquid 32, and symbol 13 is the 3rd grooves that store lysate 33.In addition, waste liquid tank 14, the wiring of supply tank 18, electric system and the pipe arrangement of liquor charging system have again been omitted in Fig. 6.
The maintenance agency of the present embodiment and embodiment 1 constructional Main Differences be in: be provided with the 3rd groove 13, be provided with again supply tank 18.
Store lysate 33 in the 3rd groove 13 that the maintenance agency of the present embodiment has.Lysate 33 is easily with the material of the cheapness of air dissolves, uses in the present embodiment ammoniacal liquor.
Supply tank 18 is used for supplying once again low viscosity liquid 32 to lid 2 again.The meaning of lid 2 being supplied once again low viscosity liquid 32 is, prevents printing ink 31 evaporations that nozzle 6 front ends expose.After the maintenance step finishes, until application step begin during, printing ink 31 also evaporates.If printing ink 31 evaporation, just printing ink 31 tackifies cause spray volume to put precision and reduce with playing dropping place, if tackify further, just printing ink 31 does not disperse.Therefore, in order to prevent the evaporation of printing ink 31, preferably be set as the state that lid 2 is connected to inkjet head 1, but have the situation that can't fully prevent printing ink 31 evaporations.Therefore, by be redefined for nozzle 6 relatively to lid 2 recess places be detained the state of low viscosity liquids 32, just can more effectively prevent printing ink 31 evaporations.The supply of low viscosity liquid 32 can by utilize 17 pairs of pressure transfer pumps again supply tank 18 mode that applies malleation carry out.
In addition, in the present embodiment, although supply low viscosity liquid 32 in order to avoid evaporating, as long as for take water as principal component and do not residue in liquid in lid 2, still can reach same effect.
The service sequence of the present embodiment by at first lysate 33 being filled in inkjet head 1, then recharges low viscosity liquid 32, carries out the mode of the filling of printing ink 31 at last again and carries out.
By the liquid of negative pressure suction, will enter respectively in waste liquid tank 14 and supply tank 18 again.That is, printing ink 31 is discharged from waste liquid tank 14 with lysate 33, and low viscosity liquid 32 is discharged from supply tank 18 again.
Have the desktop ink-jet coating apparatus of the maintenance agency of the present embodiment as constituted above, except the effect of embodiment 1, can also reach till really preventing from beginning to application step from after the maintenance step finishes during the effect of printing ink 31 evaporations occurs.
Utilizability on industry
The present invention is not limited to ink-jet printer, can also be applicable to the various ink mist recordings such as accurate spraying/injection device (comprising apparatus for coating), precision coating device.Also go for the ink jet type patterning, apparatus for coating/drawing apparatus that aspects such as organic EL display panel, the printing of large colour panel, industrial mark is used/printing equipment.
About ink jet recording method, no matter the Bubble formation modes such as the mechanical switch mode such as piezoelectric type or resistance heat injecting type are all applicable.
And, can also be used in the aspect such as placard, building materials and ornaments of the manufacturing lens coloring step of lens, large-sized print industry.
Claims (15)
1. the method for maintaining of an inkjet head is to utilize lid to cover at the nozzle that inkjet head has, and produces negative pressure and with the method for maintaining that liquid aspirates, it is characterized in that,
When liquid suction finished, the negative pressure that will cover according to the preset signals waveform in the described lid of described nozzle returned back to atmospheric pressure.
2. the method for maintaining of inkjet head according to claim 1 is characterized in that having:
The low viscosity liquid filling step makes and produces negative pressure in the described lid that covers described nozzle, via communication member and liquid switching mechanism, low viscosity liquid is filled in described inkjet head suction;
The printing ink filling step switches described liquid switching mechanism, makes and produces negative pressure in the described lid that covers described nozzle, via described communication member and described liquid switching mechanism, printing ink is filled in described inkjet head suction;
When the printing ink suction in described printing ink filling step finishes, according to the preset signals waveform, the negative pressure in described lid is returned back to atmospheric pressure.
3. the method for maintaining of inkjet head according to claim 2, it is characterized in that, as the front step of described low viscosity liquid filling step, also have the described lid interior generation negative pressure that makes the described nozzle of covering and printing ink filled the step that arrives described liquid switching mechanism from described communication member.
4. the method for maintaining of according to claim 2 or 3 described inkjet heads, is characterized in that, described low viscosity liquid is the solvent of printing ink.
5. the method for maintaining of inkjet head according to claim 1 and 2, is characterized in that, described signal waveform is the sinusoid waveform.
6. the method for maintaining of inkjet head according to claim 1 and 2, is characterized in that, described signal waveform is selected output from the pattern of a plurality of logins.
7. the method for maintaining of inkjet head according to claim 1 and 2, is characterized in that, uses negative pressure generating device, makes the negative pressure variation in the described lid that covers described nozzle, and wherein said negative pressure generating device comprises: the pressure transfer pump; The signal generation component can be exported described preset signals waveform; Adjuster is connected with described pressure transfer pump and described signal generation component, can carry out the pressure supply corresponding to the signal waveform voltage of described signal generation component; Injector can produce negative pressure corresponding to the pressure of being supplied by described adjuster in described lid.
8. the maintenance agency of an inkjet head is to utilize lid to cover at the nozzle that inkjet head has, and produces negative pressure and with the maintenance agency that liquid aspirates, it is characterized in that comprising:
Be connected to described inkjet head and cover the lid of described nozzle; Make described lid produce the negative pressure generating device of negative pressure; Be communicated in the waste liquid tank of described lid and described negative pressure generating device; Make the cover body opening/closing mechanism of described lid and described inkjet head butt or non-butt; Be communicated in the ink containment section of described inkjet head; And the control part that these actions are controlled;
Described control part returns back to atmospheric mode with the negative pressure in the described lid that will cover described nozzle according to the preset signals waveform, and described negative pressure generating device is controlled.
9. the maintenance agency of inkjet head according to claim 8 characterized by further comprising:
Be communicated in the low viscosity liquid storage unit of described inkjet head; Be communicated in the ink containment section of described inkjet head; Make described inkjet head select a liquid switching mechanism that is communicated with described low viscosity liquid storage unit or described ink containment section;
Described control part is implemented following steps: the low viscosity liquid filling step, by described liquid switching mechanism, described low viscosity liquid storage unit is connected with described inkjet head, and makes and produce negative pressure in the described lid that covers described nozzle and low viscosity liquid is filled in described inkjet head suction; The printing ink filling step makes ink containment section be connected with described inkjet head by described liquid switching mechanism, and makes and produce negative pressure in the described lid that covers described nozzle and printing ink is filled in described inkjet head suction; In described printing ink filling step, described control part returns back to atmospheric mode with the negative pressure in the described lid that will cover described nozzle according to the preset signals waveform, and described negative pressure generating device is controlled.
10. the maintenance agency of inkjet head according to claim 9, it is characterized in that, as the front step of described low viscosity liquid filling step, described control part is also implemented to make and is produced negative pressure in the described lid that covers described nozzle and printing ink is filled from described ink containment section the step that arrives described liquid switching mechanism.
11. the maintenance agency of according to claim 8 or 9 described inkjet heads is characterized in that, described signal waveform is the sinusoid waveform.
12. the maintenance agency of according to claim 8 or 9 described inkjet heads is characterized in that, described signal waveform is selected output from the pattern of a plurality of logins.
13. the maintenance agency of according to claim 8 or 9 described inkjet heads is characterized in that, described negative pressure generating device comprises: the pressure transfer pump; The signal generation component can be exported described preset signals waveform; Adjuster is connected with described pressure transfer pump and described signal generation component, can carry out the pressure supply corresponding to the signal waveform voltage of described signal generation component; Injector can produce negative pressure corresponding to the pressure of being supplied by described adjuster in described lid.
14. the maintenance agency of according to claim 8 or 9 described inkjet heads is characterized in that, described low viscosity liquid is the solvent of printing ink.
15. a device has the maintenance agency of claim 8 or 9 described inkjet heads.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-350710 | 2006-12-26 | ||
| JP2006350710A JP5147232B2 (en) | 2006-12-26 | 2006-12-26 | Inkjet head maintenance method, mechanism and apparatus |
| CN2007800478628A CN101674939B (en) | 2006-12-26 | 2007-12-26 | Method, mechanism, and device for maintaining inkjet head |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800478628A Division CN101674939B (en) | 2006-12-26 | 2007-12-26 | Method, mechanism, and device for maintaining inkjet head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103085494A true CN103085494A (en) | 2013-05-08 |
| CN103085494B CN103085494B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800478628A Active CN101674939B (en) | 2006-12-26 | 2007-12-26 | Method, mechanism, and device for maintaining inkjet head |
| CN201210568470.9A Active CN103029446B (en) | 2006-12-26 | 2007-12-26 | Method, mechanism and device for maintaining inkjet head |
| CN201210566878.2A Active CN103085494B (en) | 2006-12-26 | 2007-12-26 | The method for maintaining of inkjet head and mechanism and device |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800478628A Active CN101674939B (en) | 2006-12-26 | 2007-12-26 | Method, mechanism, and device for maintaining inkjet head |
| CN201210568470.9A Active CN103029446B (en) | 2006-12-26 | 2007-12-26 | Method, mechanism and device for maintaining inkjet head |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5147232B2 (en) |
| KR (3) | KR101475250B1 (en) |
| CN (3) | CN101674939B (en) |
| HK (3) | HK1138545A1 (en) |
| TW (1) | TWI417196B (en) |
| WO (1) | WO2008084690A1 (en) |
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| CN107042694A (en) * | 2016-01-19 | 2017-08-15 | 精工爱普生株式会社 | Tape deck and keeping method |
| CN110271285A (en) * | 2018-02-26 | 2019-09-24 | 陈胤 | Air-path control system and control method, ink-jet printer, storage medium, operating system |
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| JP2010069635A (en) * | 2008-09-16 | 2010-04-02 | Fujifilm Corp | Liquid delivering head and image forming apparatus |
| JP5245799B2 (en) * | 2008-12-16 | 2013-07-24 | セイコーエプソン株式会社 | Fluid ejection device |
| JP5282665B2 (en) | 2009-06-05 | 2013-09-04 | セイコーエプソン株式会社 | Printing apparatus and filling state switching method |
| CN102423966A (en) * | 2011-10-11 | 2012-04-25 | 江苏锐毕利实业有限公司 | Method and system for cleaning spray nozzle of rigid printed circuit board |
| CN104290456B (en) * | 2014-09-24 | 2017-05-03 | 合肥海闻自动化设备有限公司 | Ink supply system for tire numeric printer |
| CN105082539B (en) * | 2015-07-30 | 2018-02-27 | 范春潮 | A kind of fast colourful 3D printing device |
| CN105172136B (en) * | 2015-07-30 | 2018-02-27 | 范春潮 | A kind of method using colored 3D printing device printing speed |
| CN105082538B (en) * | 2015-07-30 | 2018-02-27 | 范春潮 | A kind of nozzle component on fast colourful 3D printing device |
| JP6576146B2 (en) * | 2015-07-31 | 2019-09-18 | 株式会社Ｓｃｒｅｅｎホールディングス | Coating apparatus and coating method |
| JP6725867B2 (en) * | 2016-01-19 | 2020-07-22 | セイコーエプソン株式会社 | Recording device and capping method |
| JP7206958B2 (en) * | 2019-01-28 | 2023-01-18 | セイコーエプソン株式会社 | Liquid absorber and liquid ejector |
| KR102472635B1 (en) | 2020-12-29 | 2022-11-30 | 주식회사 에스에프에이 | Inkjet printing device and cleaning method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103085494B (en) | 2015-11-18 |
| CN103029446A (en) | 2013-04-10 |
| KR101475255B1 (en) | 2014-12-22 |
| KR101475250B1 (en) | 2014-12-22 |
| CN103029446B (en) | 2015-06-17 |
| KR20090106509A (en) | 2009-10-09 |
| TW200836934A (en) | 2008-09-16 |
| HK1179217A1 (en) | 2013-09-27 |
| JP2008162023A (en) | 2008-07-17 |
| HK1138545A1 (en) | 2010-08-27 |
| WO2008084690A1 (en) | 2008-07-17 |
| TWI417196B (en) | 2013-12-01 |
| HK1179219A1 (en) | 2013-09-27 |
| CN101674939A (en) | 2010-03-17 |
| KR101521900B1 (en) | 2015-05-20 |
| JP5147232B2 (en) | 2013-02-20 |
| KR20140032484A (en) | 2014-03-14 |
| KR20140025605A (en) | 2014-03-04 |
| CN101674939B (en) | 2013-02-13 |
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