CN107614272A - Ink gun, the bubble of ink gun remove method and ink-jet recording apparatus - Google Patents
Ink gun, the bubble of ink gun remove method and ink-jet recording apparatus Download PDFInfo
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- CN107614272A CN107614272A CN201680030220.6A CN201680030220A CN107614272A CN 107614272 A CN107614272 A CN 107614272A CN 201680030220 A CN201680030220 A CN 201680030220A CN 107614272 A CN107614272 A CN 107614272A
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- Prior art keywords
- ink
- road
- outflow road
- bubble
- filter
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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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14209—Structure of print heads with piezoelectric elements of finger type, chamber walls consisting integrally of piezoelectric material
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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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/055—Devices for absorbing or preventing back-pressure
-
- 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
-
- 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
-
- 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14403—Structure thereof only for on-demand ink jet heads including a filter
-
- 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14419—Manifold
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/07—Embodiments of or processes related to ink-jet heads dealing with air bubbles
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/12—Embodiments of or processes related to ink-jet heads with ink circulating through the whole print head
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
The problem of the present invention is to provide the ink gun that a kind of residual bubble that ink can be stockpiled to room for possessing filter efficiently removes,The bubble of ink gun removes method and ink-jet recording apparatus,And possesses filter 42 in ink current divider 4,Ink stockpiles room 41 by sandwiching filter 42 to be divided into upstream side ink chamber 411 and downstream ink chamber 412,In upstream side, ink chamber 411, which is communicated with, flows into road 44a,The outflows of 5a and the 1st road 44b,5b,In downstream, ink chamber 412 is not communicated with the 2nd outflow road 44c via the ground of filter 42,In 5c ink gun 1,Form in such a way to solve the problem,I.e. to the 1st outflow road 44b,5b assigns the pressure loss,And/or flow out road 44c from the 2nd,5c absorbs ink,Make from inflow road 44a,5a flows into the ink of upstream side ink chamber 411 by the way that also downstream side ink chamber 412 flows into after filter 42,So that ink simultaneously with downstream ink chamber 412 flow to the upstream side by ink chamber 411.
Description
Technical field
The present invention relates to the bubble of ink gun, ink gun to remove method and ink-jet recording apparatus, is specifically related to tool
Ink gun that the residual bubble that ink is stockpiled to interior of standby filter efficiently removes, the bubble removing method of ink gun and
Ink-jet recording apparatus.
Background technology
In ink gun, the ink for stockpiling the ink being commonly fed to multiple balancing gate pits stockpiles room (also referred to as shared ink
Room.) in gas bubbles left in balancing gate pit, near balancing gate pit, bring shadow so as to give the ink carried out from nozzle to project sometimes
Ring.Especially for possessing in stockpiling room in ink for preventing the filtering in the feed pressure rooms such as impurity in ink, bubble
For the ink gun of device, in the case that (balancing gate pit side) is attached with bubble under filter, exist bubble flow into balancing gate pit in and
The worry for bringing influence is projected to ink.
In the past, in possessing the ink gun of filter, it is known that the ink room of stockpiling is divided into upstream side with using filter
Side is swum, inflow entrance and loop exit are set by the ink chamber in upstream side, so that ink is discharged in upstream side circulation
The ink gun (patent document 1) of bubble.But because recycle stream is only by the ink chamber of filter upstream side, so can not incite somebody to action
The bubble residued under filter is discharged to outside.
In addition, it is also known that have following ink gun：By the way that filter to be configured to the 1st shape in liquid by filter
State and liquid rotate along between the 2nd state of filter flow, so as to when making filter be in 2 state, will attach to
The bubble of filter discharges (patent document 2) to outside.But in this case, it is necessary to for make filter rotate rotation
Mechanism, the problem of construction that ink gun be present becomes complexity.
Therefore, it is proposed to following ink gun：In addition to ink flows into road and ink discharge path, also room is stockpiled in ink
The bubble discharge path connected via filter with the downstream of the filter is set, ink is flowed into road pressurized stream from ink
Enter, and flowed out by filter from bubble discharge path, so as to realize the removing for residuing in the bubble than filter downstream
(patent document 3).
Patent document 1：Japanese Unexamined Patent Publication 2006-263996 publications
Patent document 2：Japanese Unexamined Patent Publication 2012-799 publications
Patent document 3：Japanese Unexamined Patent Publication 2012-218398 publications
However, in the ink gun described in patent document 3, in practice to the bubble under making filter is discharged from bubble
Flow out on road, it is necessary to ink is flowed into road from ink in the state of the ink discharge path of filter upstream side is closed and flow into.By
There is the pressure loss in filter, flowed into so even making ink flow into road from ink, also can preferentially carry out filter upstream side
Ink outflow.Therefore, it is necessary to which the ink discharge path for swimming side on the filter sets the open and close valves such as magnetic valve, and removed in bubble
When control is opened and closed.
In addition, removed completely in order to which ink to be stockpiled to the bubble of room, it is necessary to control open and close valve, while separately perform
Make the process that the ink of filter upstream side flows out and the process for flowing out the ink of filter downstream side, thus there is also for
The exhausted amount of ink in time and this period that bubble removes becomes the problem of more.
The content of the invention
Therefore, problem of the invention is to provide a kind of residual bubble that ink can be stockpiled to room height for possessing filter
Ink gun, the bubble removing method of ink gun and the ink-jet recording apparatus that effect ground removes.
Other problems of the present invention become clear and definite by following record.
Above-mentioned problem is addressed by following each invention.
1. a kind of ink gun, possesses：Discharge the nozzle of ink；The balancing gate pit connected with said nozzle；Formed and above-mentioned pressure
The ink of power room connection stockpiles the ink current divider of room；And configure the filter in above-mentioned ink current divider, above-mentioned ink
Stockpile room by sandwich above-mentioned filter be divided into away from upstream side ink chamber farther out of above-mentioned balancing gate pit with away from above-mentioned balancing gate pit
Nearer downstream ink chamber, and be respectively communicated with above-mentioned upstream side ink chamber and flowed into road and the 1st outflow road, above-mentioned
Downstream ink chamber is communicated with the 2nd outflow road not via above-mentioned filter,
In above-mentioned ink gun,
It is configured to assign the pressure loss to the above-mentioned 1st outflow road and/or attracts ink from the above-mentioned 2nd outflow road, makes
From above-mentioned inflow road flow into the ink of above-mentioned upstream side ink chamber by after above-mentioned filter also to above-mentioned downstream ink chamber
Flow into, so that ink flows to above-mentioned upstream side ink chamber and above-mentioned downstream ink chamber simultaneously.
2. according to the ink gun described in above-mentioned 1,
Being provided with the above-mentioned 1st outflow road makes the flow path section product on the 1st outflow road is local to narrow so as to assign pressure damage
The flow adjustment part of mistake.
3. according to the ink gun described in above-mentioned 2,
Above-mentioned flow adjustment part is held in above-mentioned 1st outflow road, and the stream on the 1st outflow road is locally diminished
Narrow features.
4. according to the ink gun described in above-mentioned 1,2 or 3,
The suction pump for attracting ink from the 2nd outflow road is provided with the above-mentioned 2nd outflow road.
5. according to the ink gun described in above-mentioned 4,
Make the internal diameter on above-mentioned 2nd outflow road smaller than the internal diameter on the above-mentioned 1st outflow road.
6. according to the ink gun described in above-mentioned any one of 1~5,
Collaborate with the above-mentioned 2nd outflow road by tubing connection portion part on above-mentioned 1st outflow road.
7. according to the ink gun described in above-mentioned 6,
Above-mentioned 2nd outflow road is provided with check-valves.
8. a kind of bubble of ink gun removes method, above-mentioned ink gun possesses：Discharge the nozzle of ink；Connect with said nozzle
Logical balancing gate pit；Form the ink current divider that the ink connected with above-mentioned balancing gate pit stockpiles room；And configuration is in above-mentioned ink point
The filter in device is flowed, above-mentioned ink stockpiles room by sandwiching above-mentioned filter to be divided into the upstream away from above-mentioned balancing gate pit farther out
Side ink chamber away from nearer downstream ink chamber of above-mentioned balancing gate pit, and in above-mentioned upstream side ink chamber with being respectively communicated with inflow
Road and the 1st outflow road, the 2nd outflow road is communicated with not via above-mentioned filter in above-mentioned downstream ink chamber, by making ink
Water flows into from above-mentioned inflow road to be removed so as to which above-mentioned ink to be stockpiled to the residual bubble of room,
In the bubble removing method of above-mentioned ink gun,
The pressure loss is assigned to the above-mentioned 1st outflow road and/or attracts ink from the above-mentioned 2nd outflow road, is made from above-mentioned
The ink that inflow road flows into above-mentioned upstream side ink chamber is also flowed into by above-mentioned filter to above-mentioned downstream ink chamber, from
And ink is set to be flowed simultaneously in above-mentioned upstream side ink chamber and above-mentioned downstream ink chamber.
9. the bubble of the ink gun according to described in above-mentioned 8 removes method,
Part is adjusted in the flow that the above-mentioned 1st outflow road sets the flow path section product for making the 1st outflow road locally to narrow
Assign the pressure loss.
10. the bubble of the ink gun according to described in above-mentioned 9 removes method,
Above-mentioned flow adjustment part is held in above-mentioned 1st outflow road, and the stream on the 1st outflow road is locally diminished
Narrow features.
11. the bubble of the ink gun according to described in above-mentioned 8,9 or 10 removes method,
By setting suction pump on the above-mentioned 2nd outflow road, so as to attract ink from the 2nd outflow road.
12. the bubble of the ink gun according to described in above-mentioned 11 removes method,
Make the internal diameter on above-mentioned 2nd outflow road smaller than the internal diameter on the above-mentioned 1st outflow road.
13. the bubble of the ink gun according to described in above-mentioned any one of 8~12 removes method,
Collaborate with the above-mentioned 2nd outflow road by tubing connection portion on above-mentioned 1st outflow road.
14. the bubble of the ink gun according to described in above-mentioned 13 removes method,
Above-mentioned 2nd outflow road is provided with check-valves.
15. a kind of ink-jet recording apparatus, it is characterised in that possess：
Ink gun described in above-mentioned any one of 1~7；
Print cartridge, it stores the ink towards the supply of above-mentioned ink gun；And
Providing ink portion, it supplies the ink in above-mentioned print cartridge to above-mentioned ink gun.
Efficiently removed in accordance with the invention it is possible to provide a kind of residual bubble that ink can be stockpiled to room for possessing filter
Ink gun, the bubble of ink gun remove method and ink-jet recording apparatus.
Brief description of the drawings
Fig. 1 is the major part schematic configuration diagram for an example for representing ink-jet recording apparatus involved in the present invention.
Fig. 2 is the enlarged partial cross section of the ink gun shown in Fig. 1.
Fig. 3 is represented the stereogram of an example of the narrow features in the state of the 1st effuser partial cut-out.
(a), (b) in Fig. 4 are that the figure that method illustrates is removed to bubble involved in the present invention.
Fig. 5 is the schematic configuration diagram for another example that ink gun involved in the present invention is represented with part section.
Embodiment
Hereinafter, embodiments of the present invention are described in detail using accompanying drawing.
(ink-jet recording apparatus)
Fig. 1 is the major part schematic configuration diagram for an example for representing ink-jet recording apparatus involved in the present invention, and
And ink gun is shown in part section.
Ink-jet recording apparatus 100 is to discharge ink from ink gun 1 and image is recorded in by handling unit (not shown)
The device in recording medium that (sub-scanning direction) is carried in a certain direction.Ink gun 1 is equipped on balladeur train (not shown), and at this
Balladeur train moved along main scanning direction during from nozzle towards recording medium discharge ink.In the spray shown in present embodiment
In black tape deck 100, ink gun 1 is set, to carry out main scanning in the horizontal direction, and discharges the ink from nozzle
Direction along vertical direction down.
An ink gun 1 is illustrate only in Fig. 1, but usually in ink-jet recording apparatus 100, such as be provided with and be directed to
The multiple ink guns 1 of each of the ink colors such as yellow (Y), magenta (M), cyan (C), black (K).In present embodiment
In shown ink-jet recording apparatus 100, store the print cartridge 101 of ink and ink gun 1 by ink reclaiming pipe 103 and with ink tube 102
Connection.
In the midway of ink tube 102, it is provided with and following for control is driven by the control unit 104 of ink-jet recording apparatus 100
Ring pump 105.The circulating pump 105 is driven, so that the ink in print cartridge 101 supplies via ink tube 102 to ink gun 1
Give, and ink (ink for including bubble etc.) is back to print cartridge 101 from ink gun 1 via ink reclaiming pipe 103.In addition, at this
In ink-jet recording apparatus 100, ink tube 102, control unit 104 and circulating pump 105, which are formed, makes ink in print cartridge 101 to ink-jet
The providing ink portion of first 1 supply.
Although print cartridge 101 is not particularly limited, divided preferably by the demarcation strip 101a for the bottom plate for not reaching print cartridge
Ink supply room 101b is divided into returning ink chamber 101c.In ink supply room, 101b is configured with one end of ink tube 102, is returning ink chamber 101c configurations
There is one end of ink reclaiming pipe 103.Demarcation strip 101a is in order that ink fully deaerates and set so that is recycled to back ink chamber 101c
Ink in bubble do not supplied again from ink tube 102.The buoyancy of bubble in itself is higher, therefore limits bubble and pass through demarcation strip
Situation about being conveyed below 101a and to ink supply room 101b.Such mode in the case of ink is recycled for be more excellent
The mode of choosing.
(ink gun)
Next, the specific structure of the ink gun 1 involved in the present invention shown in Fig. 1 is illustrated.Fig. 2 is ink-jet
First 1 enlarged partial cross section.
Ink gun 1 has：Head chip 2；It is bonded in the substrate 3 of this chip 2；And bonded in a manner of clipping substrate 3
Ink current divider 4 in the face of the side opposite with head chip 2.In head chip 2, glued in the face of the side opposite with substrate 3
Conjunction has the nozzle plate 21 with nozzle 22.
In addition, the ink gun 1 shown in present embodiment is set simultaneously in a manner of discharging face 1S towards the downside in Fig. 1, Fig. 2
Use.In this manual, " on " or " under " on the basis of the use state shown in Fig. 1, Fig. 2.Therefore, in Fig. 1, Fig. 2
Upside for " on ", downside for " under ".
Head chip 2 has balancing gate pit 23.There is no particular limitation for the quantity of balancing gate pit 23.In the head shown in present embodiment
In chip 2, long side direction that is, X-direction of multiple balancing gate pits 23 along head chip 2 arrange.The ink of balancing gate pit 23 internally is applied
Add discharge pressure, and the nozzle 22 connected from one end with balancing gate pit 23 discharges ink.The other end of balancing gate pit 23 is in head chip 2
The side of substrate 3 end face opening.
For into balancing gate pit 23 ink apply discharge pressure specific unit there is no particular limitation, can use
Known unit.In the present embodiment, it is by piezoelectricity member to be illustrated the next door that adjacent balancing gate pit 23,23 separates
The driving wall 24 that is, head chip 2 that part is formed.For driving wall 24, such as by from control unit 104 towards in face of pressure
The driving electrodes (not shown) formed on face in room 23 apply the drive signal of assigned voltage, so as to detrusion.Due to pressure
The driving wall 24 of the both sides of power room 23,24 detrusions, so as to which balancing gate pit 23 expands or shunk.Thus, in balancing gate pit 23
Ink apply pressure, so as to from nozzle 22 discharge ink.
Substrate 3 is, for example, glass substrate, and there are the driving electrodes of each driving wall 24 for correct chip 2 to apply voltage for it
Wiring (not shown).The end face that substrate 3 has the head chip 2 of the other end of balancing gate pit 23 with opening bonds.The size ratio of substrate 3
The end face of head chip 2 is big.Therefore, the periphery of substrate 3 is stretched out more laterally compared with head chip 2.Substrate 3 formed with head core
Each balancing gate pit 23 of piece 2 separately connects, so as to for making the through hole 31 that ink flows into balancing gate pit 23.
Ink current divider 4 is formed as by synthetic resin etc. in the box grown crosswise of the one side with opening portion 4a, and with
The 4a modes blocked in opening portion are bonded in substrate 3.The inner space of ink current divider 4, which is formed, supplies what is supplied from print cartridge 101
The ink that ink stockpiles stockpiles room 41.Ink stockpile room 41 via each through hole 31 of substrate 3 and with all pressure of head chip 2
Room 23 connects.Therefore, ink stockpiles the ink of room 41 and is commonly fed via each through hole 31 to all balancing gate pits 23.
In ink current divider 4, by by ink stockpile room 41 along upper and lower in Fig. 1 be divided into it is two-part in a manner of with substrate 3
Be configured with substantially in parallel such as cancellous metal, resin porous plastid the filter 42 that is formed.Thus, ink is deposited
Product room 41 by sandwich filter 42 be divided into away from upstream side ink chamber 411 farther out of balancing gate pit 23 with it is nearer away from balancing gate pit 23
Downstream ink chamber 412.Filter 42 prevents to flow into via ink tube 102 included in the ink of upstream side ink chamber 411
Bubble, downstream side ink chamber 412 flows into impurity.
In the present invention, the filter 42, which is supplied with to ink, stockpiles the ink of room 41 downstream side ink chamber 412 flows into
When pressure loss key element in one.For pressure loss key element, in the pump circulation of ink, the length of pipe arrangement is considered
The quantity of bending section etc. of degree, pipe arrangement, but they are the degree that can ignore that compared with the pressure loss of filter.In addition, follow
Ring pump 105 has the pressure for exceeding the pressure loss as caused by the pressure loss key element such as filter 42.
The ink chamber 412 in downstream, it is configured with the damped part 43 for internally having enclosed gas.In damped part 43,
By with substrate 3 it is aspectant in a manner of and substrate 3 be separated by as defined in distance be configured with the damping area 431 formed by flexible membrane.Resistance
Buddhist nun's part 43 absorbs the pressure wave that the propagation of room 41 is stockpiled from balancing gate pit 23 to ink in the discharge of ink.Thereby, it is possible to reduce
The influence that caused pressure wave stockpiles room 41 via ink and brought to other balancing gate pits 23 in balancing gate pit 23.
In ink current divider 4, erect has pipe-fitting joint portion 44a, 44b, 44c upward.
Pipe-fitting joint portion 44a connects with upstream side ink chamber 411, is used to make ink to the upstream side ink chamber so as to be formed
411 ink entrances flowed into.In the pipe-fitting joint portion, 44a is connected with the one end for flowing into pipe 5a.Thus, pipe 5a and upstream are flowed into
Side ink chamber 411 connects.
In addition, above-mentioned pipe-fitting joint portion 44a and inflow pipe 5a are formed and upstream side ink chamber 411 in the ink gun 1
The inflow road of connection.
Pipe-fitting joint portion 44b connects with upstream side ink chamber 411, is used to make ink with bubble together from this so as to be formed
The 1st ink inlet that You Ce ink chamber 411 flows out.In the pipe-fitting joint portion, 44b is connected with the 1st effuser 5b one end.By
This, the 1st effuser 5b connects with upstream side ink chamber 411.
In addition, these pipe-fitting joint portion 44b and the 1st effuser 5b are formed and upstream side ink chamber in the ink gun 1
1st outflow road of 411 connections.
Pipe-fitting joint portion 44c connects with downstream ink chamber 412, is used to make ink with bubble together from downstream so as to be formed
The 2nd ink inlet that side ink chamber 412 flows out.In pipe-fitting joint portion, 44c is connected with the 2nd effuser 5c one end.Filter
42 do not cover pipe-fitting joint portion 44c opening.Thus, the 2nd effuser 5c is not via the ground of filter 42 and downstream ink chamber
412 connections.
In addition, above-mentioned pipe-fitting joint portion 44c and the 2nd effuser 5c are formed not via filter 42 in the ink gun 1
The 2nd outflow road that ground connects with downstream ink chamber 412.
In the ink gun 1 shown in present embodiment, by pipe-fitting joint portion 44b and the 1st effuser 5b form the 1st stream
The internal diameter of outlet, with by pipe-fitting joint portion 44c and the 2nd effuser 5c form the 2nd outflow road internal diameter be set to it is identical.
Pipe-fitting joint portion 44a and pipe-fitting joint portion 44b is preferably in two sides of the long side direction of upstream side ink chamber 411
Discretely configure.Pipe-fitting joint portion 44a in present embodiment is configured at the left side in Fig. 1 on the upper surface of ink current divider 4
Side, pipe-fitting joint portion 44b are configured at the right side in Fig. 1 on the upper surface of ink current divider 4.Thereby, it is possible to make to manage from inflow
5a flows into ink integrally being flowed towards the 1st effuser 5b throughout upstream side ink chamber 411 of upstream side ink chamber 411.
Therefore, it is not easy, at the position of the formation ink supply hydropexis of upstream side ink chamber 411, can more efficiently remove the gas in ink
Bubble.
Additionally, it is preferred that pipe-fitting joint portion 44c is configured at than pipe-fitting joint portion 44b further from pipe-fitting joint portion 44a side
Downstream ink chamber 412 end near.Ink current divider 4 in present embodiment is formed as, and downstream ink chamber 412 compares
Upstream side ink chamber 411 stretches out on the right side of the long side direction more into Fig. 1.Moreover, it is configured with pipe arrangement near the end of the stretching
Connector portions 44c.Thereby, it is possible to make to flow into downstream by upstream side ink chamber 411 and filter 42 from inflow pipe 5a
The ink of ink chamber 412 integrally flows throughout downstream ink chamber 412 to the 2nd effuser 5c.Therefore, it is not easy in downstream
Ink chamber 412 forms the position of ink supply hydropexis, can more efficiently remove the bubble in ink.
For the ink gun 1, the 1st effuser 5b and the 2nd effuser 5c be connected to shared tubing connection portion part 6 from
And collaborate, and preferable mode is shown in the present invention.Tubing connection portion part 6 has 2 entrances 6a, 6b and 1 outlet
6c.The end of the 1st effuser 5b and the 2nd respective outlet sides of effuser 5c is connected with entrance 6a, 6b.In outlet, 6c is connected with
Outlet 61.Thus, tubing connection portion part 6 make the ink that is flowed in the 1st effuser 5b and the 2nd effuser 5c collaborate and from 1
Individual outlet 6c outflows.Such tubing connection portion part 6 is such as can use T words joint, Y word joints.
Jointing portion 7a, 7b are respectively arranged with the end for flowing into pipe 5a and outlet 61.Jointing portion 7a, 7b
It is the connection unit for the ink gun 1 and the pipe arrangement of ink circulation system for forming ink-jet recording apparatus 100 side etc. to be connected.
In the ink gun 1 shown in present embodiment, jointing portion 7a in a detachable manner and with the side of ink-jet recording apparatus 100
The jointing portion 106a connections that connect of ink tube 102, jointing portion 7b is in a detachable manner and and ink mist recording
The jointing portion 106b connections that the ink reclaiming pipe 103 of the side of device 100 connects.Thus, ink gun 1 is set so as to relative to spray
Black tape deck 100 carries out the supply and loopback of ink.
So, for the ink gun 1 shown in present embodiment, the 1st effuser 5b and the 2nd effuser 5c are by 1
Tubing connection portion part 6 and collaborate into 1 outlet 61, therefore the connecting portion being connected with the pipe arrangement of the side of ink-jet recording apparatus 100 etc.
Position, which is also only, flows into pipe 5a (jointing portion 7a) and outlet 61 (jointing portion 7b) the two positions.Therefore, with
The quantity of the connecting portions of connection such as the pipe arrangement of the side of ink-jet recording apparatus 100 does not increase, and will not complicate connection operation.
In addition, the ink gun 1 shown in present embodiment is only to flow into pipe 5a (jointing portion 7a) and outlet 61 (even
Meet connector portions 7b) construction that is connected with jointing portion 106a, 106b of the side of ink-jet recording apparatus 100 of the two positions, therefore
There is also the effect for possessing the interchangeability exchanged with the ink gun of the existing ink-jet recording apparatus with cycling mechanism.I.e., typically
Ground, the ink-jet recording apparatus with the cycling mechanism of the ink circulation made in ink current divider turn into relative to each ink gun,
The two positions of the inflow part of ink and outflow portion carry out the construction that pipe arrangement connects.Therefore, the spray according to present embodiment
Ink first 1, without being designed change to existing device, can only by the connection at jointing portion the two positions of 7a, 7b come
Changed and set.
2nd effuser 5c is provided with check-valves 8.The check-valves 8 plays function, to allow from downstream ink chamber 412
Ink is flowed out towards tubing connection portion part 6, and prevents the flowing of the ink towards its opposite side.If for example, because being wrapped in ink
The impurity that contains and make it that filter 42 blocks, and decline the pressure of the side of downstream ink chamber 412, then with upstream side ink chamber
Pressure differential is produced between 411.In this case, exist from the ink of the 1st effuser 5b outflows from tubing connection portion part 6 to the
The worry of 2 effuser 5c adverse currents.By setting check-valves 8 in the 2nd effuser 5c, can prevent from making to bring about the desired sensation because of the adverse current of ink
Bubble, impurity enter the situation of downstream ink chamber 412.So, the mode of check-valves 8 is set to making by tubing connection portion part 6
It is than more preferably mode for the situation at the 1st effuser 5b and the 2nd effuser 5c interflow.In addition, the check-valves 8 and pressure
Lose one in key element.
In the ink gun 1 shown in present embodiment, the 1st outflow road, which is assigned, the pressure loss.Specifically, the 1st
Outflow road is provided with the flow adjustment part for making the flow path section product on the 1st outflow road locally narrow.
Figure 3 illustrates an example of flow adjustment part.Fig. 3 represents that flow adjustment part will be provided with
The stereogram of the state of 1st effuser 5b partial cut-outs of one example.
Flow adjustment part shown in Fig. 1, Fig. 3 is held in the 1st effuser 5b, and makes the 1st effuser 5b stream
The narrow features 9 that portion of road bureau reduces.Accordingly, only by the way that the 1st effuser 5b and pipe-fitting joint of narrow features 9 will be maintained in advance
Portion 44b connections, it becomes possible to which the flow for being easy to set up assigning the desired pressure loss on the 1st outflow road adjusts part.
As shown in figure 3, narrow features 9 minor diameter part 91 two side coaxials one have diameter than the minor diameter part 91
Big large-diameter portion 92,92.There is no particular limitation for the material of narrow features 9, but can enumerate the non-impregnability of ink, direction the 1st
The metal such as the easy degree of effuser 5b insertions and the stainless steel of excellent corrosion resistance relative to ink, ceramics, synthesis tree
Fat.
The external diameter of large-diameter portion 92,92 is formed as its outer peripheral face can be big with the 1st effuser 5b inner peripheral surface close contact
It is small.Therefore, for narrow features 9, after being inserted into the 1st effuser 5b, large-diameter portion 92,92 and the 1st effuser 5b's
Inner peripheral surface is in close contact, so as to the assigned position being held in the 1st effuser 5b.
In narrow features 9 formed with the stream hole 94 for passing through setting with large-diameter portion 92,92 ground throughout minor diameter part 91.Large-diameter portion
92nd, the 92 and the 1st effuser 5b inner peripheral surface is in close contact, therefore the 1st effuser 5b being configured with the position of the narrow features 9
Interior stream is only the stream hole 94.Therefore, narrow features 9 accumulate the 1st effuser 5b flow path section by the stream hole 94
Part narrows, so that the pressure of the ink flowed in the 1st effuser 5b is lost.
Ink supply water flow into side large-diameter portion 92 outer peripheral face a part, formed with the groove portion axially extended
93.By the groove portion 93, the bubble in ink is set to flow between the 1st effuser 5b inwall and minor diameter part 91, so as to by the sky
Sealing gland is closed wherein.Contacts ink in the air and the 1st effuser 5b, therefore play a part of damper.The effect of damper
It is not make inside Vibration propagation to the head of balladeur train.In addition, in the case of the degassing for carrying out ink, the 1st effuser 5b's is interior
Air between wall and minor diameter part 91 is reduced, but the air is filled in the pipe because of the gas-premeable of pipe.Large-diameter portion 92 also may be used
To be only arranged at the outflow side of ink.In addition, in the case where that need not make flow adjustment part 9 that there is damper,
Minor diameter part 91 can also be not provided with.
The pressure loss assigned by the narrow features 9 is the following pressure loss：Flowing into ink and stockpiling the ink of room 41
From upstream side ink chamber 411 towards the 1st effuser 5b flow while, make a part for the ink by filter 42, and from
Downstream ink chamber 412 is flowed towards the 2nd effuser 5c.Internal diameter of the pressure loss based on stream hole 94 and be adjusted.
That is, in the case of the ink gun 1 shown in present embodiment, the ink that ink stockpiles room 41 is flowed into from pipe 5a is flowed into
When by upstream side ink chamber 411 to be flowed out from the 1st effuser 5b, a part is stopped water by the narrow features 9, so as to ink
Pressure generation part loss.The pressure of the loss amount is suitably adjusted according to the internal diameter of stream hole 94, so as to make
The pressure that ink passes through filter 42.Therefore, flow into the part of the ink of upstream side ink chamber 411 by filter 42 and
Flow into downstream ink chamber 412.Thus, the ink for flowing into upstream side ink chamber 411 does not only exist in upstream side ink chamber 411,
Also by filter 42, downstream side ink chamber 412 is flowed simultaneously.
Therefore, according to the ink gun 1 and the ink-jet recording apparatus 100 for possessing it, only by making ink from inflow pipe 5a
Flow into, it becomes possible to ink is stockpiled the residual bubble of room 41 and not only arranged by upstream side ink chamber 411 from the 1st effuser 5b
Go out, also by being discharged across the downstream ink chamber 412 of filter 42 from the 2nd effuser 5c.Thus, without as in the past
Control is opened and closed to open and close valve etc., ink can be efficiently removed and stockpile the overall residual bubble in room 41.
In addition, according to the ink gun 1 and the ink-jet recording apparatus 100 for possessing it, in being recorded in image with print cartridge
When being circulated the ink between 101, the ink of downstream ink chamber 412 can also circulated by filter 42.Therefore,
Also the bubble that can make to import from nozzle 22 in image records promptly is discharged.In addition, include the grain easily precipitated using
In the case of ink including son, pigment etc., it can effectively suppress the grain in the downstream ink chamber 412 in image record
The precipitation of son, pigment etc., so as to suppress the concentration distribution of ink.
The specific internal diameter of the stream hole 94 of narrow features 9 is suitably adjusted, to be considered as the pressure loss
The pressure loss of the filter 42 of key element, check-valves 8 etc., so as to which the pressure loss on the 1st outflow road is set as into desired pressure
Loss.If for example, so that from the ink flowrates of the 1st effuser 5b outflows with being flowed out from the 2nd effuser 5c by filter 42
Ink flowrate becomes uniform mode, adjusts the internal diameter of the stream hole 94 of narrow features 9, then can make ink balancedly upstream
Side ink chamber 411 is flowed with downstream ink chamber 412.Can so make ink be promptly accumulated in upstream side ink chamber 411 with
Downstream ink chamber 412, therefore be particularly than more preferably mode in the initial importing of ink.
In addition, the internal diameter of the stream hole 94 by adjusting narrow features 9, can also make the ink from the 1st effuser 5b outflows
Water-carrying capacity is different from the ink flowrate flowed out by filter 42 from the 2nd effuser 5c.For example, make by filter 42 from the 2nd
The ink flowrate of effuser 5c outflows is more than the ink flowrate flowed out from the 1st effuser 5b, attached so as to also can easily remove
The bubble for being difficult to remove in the lower surface of filter 42.
In addition, the narrow features 9 shown in Fig. 3 are an example eventually, specific construction is not limited to shown in Fig. 3
Content.For example, as described above, large-diameter portion 92 can also be only arranged at a side.Alternatively, it is also possible to be not provided with minor diameter part 91.
(bubble removing method)
Next, in the ink gun 1 so formed, reference picture 1, Fig. 4 in the initial importing of ink to removing ink
The method for stockpiling the residual bubble of room 41 illustrates.In addition, in Fig. 4, eliminate and maintain inflow pipe 5a, narrow features 9
The 1st effuser 5b and the 2nd effuser 5c diagram.
Such as the driving of circulating pump 105 is controlled according to the regulated procedure for being pre-stored within control unit 104, so as to perform
The bubble removing action of ink-jet recording apparatus 100.
First, control unit 104 is driven to circulating pump 105 so that the ink in print cartridge 101 from pipe 5a is flowed into advise
Ink of the fixed pressure into ink current divider 4 stockpiles room 41 and flowed into.Flow into ink and stockpile the ink of room 41 and pass through upstream side
Ink chamber 411 and to the 1st effuser 5b flow ((a) in Fig. 4).
Here, as shown in Figure 1, Figure 3, it is provided with the 1st effuser 5b and considers the pressure of filter 42, check-valves 8 etc.
Loss amount as flow adjustment part narrow features 9, therefore be intended to from the 1st effuser 5b outflow ink a part it is narrow
Narrow portion part 9 stops, is lost so as to the pressure generation part of ink.The pressure of the loss amount is fitted according to the internal diameter of stream hole 94
Locality adjustment, so as to make pressure of the ink by filter 42.Therefore, the ink flowed in upstream side ink chamber 411
A part downstream ink chamber 412 ((b) in Fig. 4) is also flowed into by filter 42.
Thus, room 41 is stockpiled in ink to be formed simultaneously with：By upstream side ink chamber 411 to keep intact from the 1st stream
The flowing of the ink of outlet pipe 5b outflows；And downstream ink chamber 412 is flowed into by filter 42, and pass through downstream ink
Hydroecium 412 and from the 2nd effuser 5c outflow ink flowing (Fig. 4 (c)).
Therefore, flow into ink and stockpile the ink of room 41 from the 1st effuser 5b and the 2nd effuser 5c two sides outflow.This
When, the residual bubble of upstream side ink chamber 411 is together discharged with ink from the 1st effuser 5b, the residual of downstream ink chamber 412
Bubble is together discharged with ink from the 2nd effuser 5c.
Control unit 104 makes the driving of circulating pump 105 stop after the persistently stipulated time set in advance.In addition, example
Such as the sensor that is detected to the bubble in ink can also be set in ink reclaiming pipe 103, when the sensor be not detected by with
During bubble in the ink of Bottomhole pressure, stop the driving of circulating pump 105.Thus, bubble removes release, can use ink
Fill up ink and stockpile room 41.
So, the ink gun 1 is only flowed into by making ink stockpile room 41 to ink, it becomes possible to not only makes ink from the 1st stream
Outlet pipe 5b flows out, and also makes ink via filter 42 and is flowed out from the 2nd effuser 5c.Due to need not be in order to carry out bubble removing
And the execution such as open and close valve are operated to make ink separately be flowed out from upstream side ink chamber 411 and downstream ink chamber 412,
Therefore the construction of ink gun 1 will not be made become complicated, and the residual bubble that efficiently ink can be stockpiled in room 41 removes.
Further, since the ink comprising bubble can be made from two sides of upstream side ink chamber 411 and downstream ink chamber 412
Outflow, so compared with separately carrying out the situation of bubble removing operation in each ink chamber 411,412, gas can be shortened
Bubble removes the spent time, can also suppress the exhausted amount of ink removed for bubble.
More than bubble removing action when being not limited to the initial importing of ink, also can be towards in recording medium
Image is carried out when recording.That is, when image records, circulating pump 105 is driven in advance, so as to not only make upstream side black
The ink of hydroecium 411, also circulated the ink of the downstream ink chamber 412 between filter 42 and balancing gate pit 23.Thus,
By ink circulation, not only bubble is removed in image record, also can be by the ink of the homogeneous without concentration distribution to each pressure
Power room 23 supplies.Therefore, it is possible to form the image of higher quality.
According to the present invention, as described above, it is possible to provide a kind of residual bubble that ink can be stockpiled to room for possessing filter
Ink gun, the bubble of ink gun efficiently removed removes method and ink-jet recording apparatus.
(flow adjusts the other embodiment of part)
The narrow features 9 that flow adjustment part is not limited to as shown in Figure 1, Figure 3 are arranged at the 1st outflow road like that,
The 2nd outflow road can be arranged at as illustrated in fig. 5.Fig. 5 is another example for representing ink-jet recording apparatus involved in the present invention
The major part schematic configuration diagram of son, and ink gun is shown in part section.Position with Fig. 1 identical references is
Mutually isostructural position, therefore pin their description, described above is quoted, is repeated no more here.
Flow adjustment part in Fig. 5 is made up of the suction pump 10 for being arranged at the 2nd effuser 5c.Suction pump 10 is because of control unit
104 control and driven, so as to forcibly attract the 2nd effuser 5c in ink.Thereby, it is possible to increase because of filter 42
The pressure loss and make it that ink is difficult to flow from upstream side ink chamber 411 towards the ink flowrate of downstream ink chamber 412.Profit
The drive volume (traffic attraction) of suction pump 10 now is suitably adjusted with control unit 104, to flow into upstream side ink
A part for the ink of hydroecium 411 can also be flowed into by filter 42 and downstream side ink chamber 412.
Therefore, according to the ink gun 1 for being provided with this suction pump 10, only flowed into by making ink stockpile room 41 to ink,
It just ink is flowed out from the 1st effuser 5b, also make ink via filter 42 and flowed out from the 2nd effuser 5c, because
This obtains efficiently removing ink and stockpiles residual bubble in room 41 identically with the situation for being provided with narrow features 9
Effect.
In addition, suction pump 10 can suitably adjust ink flowrate by controlling drive volume.Therefore, such as make from the 1st stream
The ink flowrate of outlet pipe 5b outflows from the ink flowrate of the 2nd effuser 5c outflows with homogenizing, for example making to flow from the 2nd effuser 5c
The ink flowrate gone out more than the 1st effuser 5b etc., also can only by the adjustment of the drive volume of suction pump 10 and easily make from
1st effuser 5b is different from the ink flowrate that the 2nd effuser 5c flows out respectively.
Also, by the driving of suction pump 10, so as to produce negative pressure in downstream ink chamber 412, therefore there is also can
Suppress the situation that ink is discharged in vain from nozzle 22 in the initial importing of ink.
In addition, in the present embodiment, by the 1st outflow road being made up of pipe-fitting joint portion 44b and the 1st effuser 5b
Internal diameter, the internal diameter on the 2nd outflow road with being made up of pipe-fitting joint portion 44c and the 2nd effuser 5c be set as it is identical, but such
In the case that ground sets suction pump 10, it is also preferred that making the internal diameter on the 2nd outflow road smaller than the internal diameter on the 1st outflow road.In suction pump 10
Driving when, the pressure oscillation of downstream ink chamber 412 can be suppressed, so as to easily carry out ink flowrate adjustment.
In the present invention, the stream set on the 1st outflow road being made up of pipe-fitting joint portion 44b and the 1st effuser 5b
Amount adjustment part is also not limited to narrow features 9 described above.For example, although not shown, but can also be set in the 1st effuser 5b
Flow rate regulating valve is put, by making the 1st effuser 5b flow path section accumulate local narrow to assign the pressure loss.By suitably adjusting
Rectification flow adjusts the aperture of valve, so as to assign the appropriate pressure loss to the 1st outflow road.In addition, flow adjusts part
It can be check-valves.Also, can also be from the 1st effuser 5b outside in the case where forming the 1st effuser 5b by flexible pipe
Make flow path section product is local to narrow to assign the pressure loss using hold assembly etc..
(other embodiment of ink gun and ink-jet recording apparatus)
In the ink gun 1 and ink-jet recording apparatus 100 shown in Fig. 5, it is also preferred that being inhaled except being set in the 2nd effuser 5c
Outside pump priming 10, the flow adjustment part also such as being set narrow features 9 in the 1st effuser 5b, and be used in combination when bubble removes
They.Due to adjusting part using the flow for being arranged at the 1st effuser 5b to assign the pressure loss, so can correspondingly reduce
The drive volume of suction pump 10.Thus, suction pump 10 is the pump of low capacity, can reduce initial cost and operating cost.
In addition, so and with the 1st effuser 5b flow adjusting the feelings of part and the 2nd effuser 5c suction pump 10
Under condition, compared with only in the situation that the 1st effuser 5b sets flow to adjust part, the 1st effuser 5b will can also be assigned
The pressure loss is set to smaller.For example, in the case where using narrow features 9 as flow adjustment part, attract with discord
Pump 10 and situation compare, the internal diameter of stream hole 94 can be made to become big.Thus, it is also possible to realize in narrow and small stream hole 94
It is difficult to the use of high viscosity ink flowed, so as to expand the species of workable ink.
Also, in the ink gun 1 shown in Fig. 1, Fig. 5, made using shared tubing connection portion part 6 in the 1st effuser 5b
The ink of interior flowing and the ink flowed in the 2nd effuser 5c collaborate, but can also need not set tubing connection portion part 6.
In this case, the connecting portion being connected with the pipe arrangement of the side of ink-jet recording apparatus 100 etc. turns into 3 positions, thus exist with both
There is the impaired worry of the interchangeability of device, but due to being closed each other from the 1st effuser 5b and the 2nd effuser 5c inks flowed out respectively
Stream, therefore do not need the 2nd effuser 5c check-valves 8.
Ink-jet recording apparatus 100 described above makes ink be circulated between ink gun 1 and print cartridge 101, but does not limit
In this.For example, in the case of being removed when will only remain initial importing of the bubble in ink, although not shown, but can also
Being configured to makes the ink from the 1st effuser 5b and the 2nd effuser 5c outflows not return to the ground of print cartridge 101 discharges to waste ink box.
The explanation of reference
1... ink gun；1S... discharges face；2... head chip；21... nozzle plate；22... nozzle；23... balancing gate pit；
24... wall is driven；3... substrate；31... through hole；4... ink current divider；4a... opening portions；41... ink stockpiles room；
411... upstream side ink chamber；412... downstream ink chamber；42... filter；43... damped part；431... damping area；
44a, 44b, 44c... pipe-fitting joint portion；5a... flows into pipe；The effusers of 5b... the 1st；The effusers of 5c... the 2nd；6... pipe arrangement connects
Relay part；6a, 6b... entrance；6b... is exported；61... outlet；7a, 7b... jointing portion；8... check-valves；9...
Narrow features (flow adjustment part)；91... minor diameter part；92... large-diameter portion；93... groove portion；94... stream hole；10... inhale
Pump priming (flow adjustment part)；100... ink-jet recording apparatus；101... print cartridge；102... ink tube；103... ink reclaiming pipe；
104... control unit；105... circulating pump；106a... jointings portion；106b... jointings portion.
Claims (15)
1. a kind of ink gun, possesses：Discharge the nozzle of ink；The balancing gate pit connected with the nozzle；Formed and the balancing gate pit
The ink of connection stockpiles the ink current divider of room；And the filter in the ink current divider is configured, the ink stockpiles
Room by sandwich the filter be divided into away from upstream side ink chamber farther out of the balancing gate pit with it is nearer away from the balancing gate pit
Downstream ink chamber, and the upstream side ink chamber be respectively communicated with flow into road and the 1st outflow road, in the downstream
Side ink chamber is communicated with the 2nd outflow road not via the filter,
In the ink gun,
It is configured to assign the pressure loss to the described 1st outflow road and/or attracts ink from the described 2nd outflow road, makes from institute
State and flow into road and flow into the ink of the upstream side ink chamber by also being flowed into after the filter to the downstream ink chamber,
So that ink flows to the upstream side ink chamber and the downstream ink chamber simultaneously.
2. ink gun according to claim 1, wherein,
Being provided with the described 1st outflow road makes the flow path section product on the 1st outflow road is local to narrow so as to assign the pressure loss
Flow adjusts part.
3. ink gun according to claim 2, wherein,
The flow adjustment part is held in the 1st outflow road, and it is narrow the 1st stream for flowing out road is locally diminished
Narrow portion part.
4. according to the ink gun described in claim 1,2 or 3, wherein,
The suction pump for attracting ink from the 2nd outflow road is provided with the described 2nd outflow road.
5. ink gun according to claim 4, wherein,
Make the internal diameter on the 2nd outflow road smaller than the internal diameter on the described 1st outflow road.
6. according to ink gun according to any one of claims 1 to 5, wherein,
Collaborate with the described 2nd outflow road by tubing connection portion part on the 1st outflow road.
7. ink gun according to claim 6, wherein,
Described 2nd outflow road is provided with check-valves.
8. a kind of bubble of ink gun removes method, the ink gun possesses：Discharge the nozzle of ink；Connected with the nozzle
Balancing gate pit；Form the ink current divider that the ink connected with the balancing gate pit stockpiles room；And configuration is in the ink current divider
Interior filter, the ink stockpile room by sandwich the filter be divided into away from the balancing gate pit farther out upstream side ink
Hydroecium with away from nearer downstream ink chamber of the balancing gate pit, and the upstream side ink chamber be respectively communicated with flow into road with
And the 1st outflow road, be communicated with not via the filter the 2nd outflow road in the downstream ink chamber, by make ink from
The road that flows into is flowed into so as to which the ink to be stockpiled to the residual bubble removing of room,
In the bubble removing method of the ink gun,
The pressure loss is assigned to the described 1st outflow road and/or attracts ink from the described 2nd outflow road, is made from the inflow
Road flows into the ink of the upstream side ink chamber by also being flowed into after the filter to the downstream ink chamber, so that
Ink flows to the upstream side ink chamber and the downstream ink chamber simultaneously.
9. the bubble of ink gun according to claim 8 removes method, wherein,
Made by being set on the described 1st outflow road the 1st outflow road the flow that locally narrows of flow path section product adjust part come
Assign the pressure loss.
10. the bubble of ink gun according to claim 9 removes method, wherein,
Flow adjustment part is held in the 1st outflow road and the 1st stream for flowing out road is locally diminished narrow
Narrow portion part.
11. the bubble of the ink gun according to claim 8,9 or 10 removes method, wherein,
By setting suction pump on the described 2nd outflow road, so as to attract ink from the 2nd outflow road.
12. the bubble of ink gun according to claim 11 removes method, wherein,
Make the internal diameter on the 2nd outflow road smaller than the internal diameter on the described 1st outflow road.
13. the bubble of the ink gun according to any one of claim 8~12 removes method, wherein,
Collaborate with the described 2nd outflow road by tubing connection portion on the 1st outflow road.
14. the bubble of ink gun according to claim 13 removes method, wherein,
Described 2nd outflow road is provided with check-valves.
15. a kind of ink-jet recording apparatus, wherein, possess：
Ink gun according to any one of claims 1 to 7；
Print cartridge, it stores the ink towards ink gun supply；And
Providing ink portion, it supplies the ink in the print cartridge to the ink gun.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015105604 | 2015-05-25 | ||
| JP2015-105604 | 2015-05-25 | ||
| PCT/JP2016/065438 WO2016190349A1 (en) | 2015-05-25 | 2016-05-25 | Ink jet head, bubble removing method for ink jet head, and ink jet recording apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107614272A true CN107614272A (en) | 2018-01-19 |
| CN107614272B CN107614272B (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680030220.6A Active CN107614272B (en) | 2015-05-25 | 2016-05-25 | Ink jet head, method for removing bubbles from ink jet head, and ink jet recording apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6597777B2 (en) |
| CN (1) | CN107614272B (en) |
| WO (1) | WO2016190349A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016190349A1 (en) | 2016-12-01 |
| JP6597777B2 (en) | 2019-10-30 |
| JPWO2016190349A1 (en) | 2018-03-15 |
| CN107614272B (en) | 2019-12-24 |
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