CN106494087A - Ink discharge device and ink ejecting method - Google Patents
Ink discharge device and ink ejecting method Download PDFInfo
- Publication number
- CN106494087A CN106494087A CN201610681081.5A CN201610681081A CN106494087A CN 106494087 A CN106494087 A CN 106494087A CN 201610681081 A CN201610681081 A CN 201610681081A CN 106494087 A CN106494087 A CN 106494087A
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- Prior art keywords
- applicator head
- ink
- discharge device
- ink discharge
- applicator
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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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
-
- 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
- B41J2/07—Ink jet characterised by jet control
- B41J2/11—Ink jet characterised by jet control for ink spray
-
- 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
Abstract
The present application provides a kind of ink discharge device and ink ejecting method, in the ink discharge device with multiple applicator heads, in the position that applicator head has arbitrarily been reduced to position from applicator head ejection China ink, and at the pattern .When the state of the position for reducing head is changed over large concavo-convex structure formation regulation, now, with canal path and will reclaim the accumulator tank of ink and 2 of applicator head connection with canal path from applicator head at 2 of the black feed trough and applicator head connection by ink is supplied to applicator head, by select to make the flow of the ink in applicator head become fixed as match somebody with somebody canal path so as to carrying out the ejection of stable ink from applicator head.
Description
Technical field
The present invention relates to ink discharge device and ink ejecting method.Especially, be related to make ink circulation and spray ink ink discharge device and
Ink ejecting method.
Background technology
Ink discharge device control ink amount simultaneously makes ink spray from the applicator head with multiple nozzles.Ink discharge device is widely used in paper
, describe arbitrary graphic, word etc. on the surface of plastics.
In figure, the description of word, it is desirable to describe high-resolution image quality.In the manufacture of equipment, it is desirable to high-precision
Degree forms uniform functional membrane.Thus, in ink discharge device, it is necessary to the ink sprayed from multiple nozzles of applicator head is measured with the time
Stablize and be equably ejected.
Thus, in the ink discharge device of existing document 1, propose to have and be always by being controlled make in applicator head intrinsic pressure
Fixation sprays stabilized technology so as to realize ink.In the ink discharge device, possess for the confession to supplying ink to applicator head
The Pressure Control Unit of the pressure in the accumulator tank of ink in control flume is reclaimed to groove and from applicator head, and the pressure in each groove is entered
Row control, so that the pressure in applicator head becomes fixed.So, it is always fixed by making the pressure in applicator head, so as to apply
The liquid surface shape stabilisation of the nozzle ejiction opening of deposited head, can realize the stabilisation of ink ejection.
Additionally, in the ink discharge device that existing document 2 is recorded, connecting the pipe arrangement of supply ink in applicator head and introducing matching somebody with somebody for ink
Pipe.The pipe arrangement of Mo Congmo supplies is incorporated into the introducing pipe arrangement of ink by applicator head.Thus, it is proposed that gone forward side by side by making ink circulation
The stabilized technology for realizing spraying that gushes out of row ink.
In the ink discharge device, in the pipe arrangement that ink is supplied to applicator head and draw in the pipe arrangement of ink from applicator head and arrange
Pressure transducer, adjusts the value of the sensor of the pressure and makes black circulation.By carrying out the circulation of ink, the gas in applicator head is made
Bubble, foreign body move to black circulating path from inside applicator head.Thus, when ink is sprayed from applicator head, caused by bubble, foreign body
Impact is eliminated, it is possible to realizing stable ejection.
Citation
Patent documentation
Patent documentation 1：TOHKEMY 2008-289983 publications
Patent documentation 2：TOHKEMY 2012-96524 publications
Invention problem to be solved
In the ink discharge device that existing document 1 and existing document 2 are recorded, on condition that in workpiece (paper, the plate and knot of plastics
Structure body, glass substrate, the plate of metal and works etc.) the upper pattern for spraying ink and forming regulation.Thus, applicator head and workpiece
Distance is fixed.
But, workpiece shape be with larger concavo-convex shape in the case of, need the position to applicator head to carry out
Adjustment is so that its ejection that is concavo-convex corresponding with workpiece and carrying out ink.This is because, if the distance of applicator head and workpiece is not protected
Fixation is held, then cannot definitely form the pattern of regulation.
In the ink discharge device that existing document 1 is recorded, come to larger concavo-convex shape in the position for changing applicator head
Workpiece carry out ink ejection in the case of, pressure oscillation drastically can occur in head.Now, according to the urgency inside applicator head
The measurement result of acute pressure oscillation, adjusts the pressure inside feed trough and inside accumulator tank and is adjusted to make in applicator head
The pressure in portion becomes fixed.
But, the adjustment of the pressure for instantaneously drastically being changed is highly difficult, and the pressure inside applicator head can become high pressure
Or low pressure.Thus, spill from each nozzle bore generation ink of applicator head, the membership of entering of air causes ink ejection to become unstable.
Additionally, in the ink discharge device that existing document 2 is recorded, coming to larger concavo-convex in the position for changing applicator head
In the case that the workpiece of shape carries out the ejection of ink, the pressure in applicator head, in circulation stream can occur variation drastically.This
When, the adjustment of the black quantity delivered of applicator head, the adjustment of black introduction volume can be had little time, so as to can drastically apply high pressure to applicator head
Power and make ink from each nozzle of applicator head ooze out in a large number come.
Thus, become unstable from the ejection of applicator head, difference according to circumstances can produce black dripping from applicator head.
Content of the invention
The present invention is used for solving above-mentioned existing problem, it is therefore intended that, there is provided a kind of ink discharge device, in opposite piece significantly
Change the position of applicator head come formed regulation pattern when, ink can be carried out from the stable ejection of applicator head.
Means for solving the problems
In order to reach above-mentioned purpose, using the ink discharge device included with lower component：Multiple applicator heads；By supplying tubing with
The feed trough of above-mentioned multiple applicator head connections；The 1st control unit is controlled by pressure in above-mentioned feed trough；And make multiple
The 2nd control unit that the applicator head of more than 1 is close to object among applicator head.
Additionally, using the ink ejecting method for including following operation：The selection of at least one applicator head is selected from multiple applicator heads
Operation；At least one applicator head is made to be close to operation to be close to by object；Adjust the supplying tubing supplied to close applicator head
Black flow path resistance stream operation；And from close applicator head to the working procedure of coating for being applied ink by object.
Invention effect
As above, according to the ink discharge device and ink ejecting method of the present invention, ink is made with the position according to applicator head
The flow for being flowed becomes fixed such piping system system, valve by the position of each applicator head.Thus, when making multiple applicator heads
Among arbitrary applicator head position step-down and from the arbitrary head carried out ink ejection when, stable ink can be carried out
Spray.
Description of the drawings
Fig. 1 is the overall structure figure of the ink discharge device of embodiments of the present invention 1
Fig. 2 (a) is the axonometric chart of the position relationship of the workpiece for representing applicator head and flat shape in embodiment 1, Fig. 2
(b) be in embodiment 1 represent apply starting position at applicator head and plane shape workpiece profile, Fig. 2 (c) be
The profile for applying applicator head and plane shape workpiece at end position is represented in embodiment 1.
Fig. 3 (a) is the axonometric chart for representing the position relationship of the workpiece of applicator head and flat shape in the prior embodiment, Fig. 3 (b)
It is to represent the profile for applying applicator head and plane shape workpiece at starting position in the prior embodiment, Fig. 3 (c) is in conventional example
The middle applicator head represented at coating end position and the profile of plane shape workpiece.
Fig. 4 is the overall structure figure of the ink discharge device for representing embodiment 2.
Fig. 5 is the overall structure figure of the ink discharge device of embodiment 3.
Fig. 6 is the structure chart of the variation of the ink discharge device for representing embodiment.
Fig. 7 is the structure chart of the variation of the ink discharge device for representing embodiment.
Symbol description
10 applicator heads
11 ink
12 accumulator tanks
13 feed troughs
14 accumulator tanks
15,17 pipe arrangements
16,18 pumps
19,20,40,41,50 supplying tubings
23,24,42,43,51 reclaim pipe arrangement
21,22,25,26 switching valves
30 workpiece
31 applicator heads
32 interference portions
35 control units
52,53 adjustment valves
Specific embodiment
Hereinafter, with reference to the accompanying drawings of the mode that the present invention is implemented.
(embodiment 1)
Fig. 1 is the brief figure of the ink discharge device of embodiments of the present invention 1.
The overall film by blocking UV light of ink discharge device, the lid of metal covering entirety so that each groove under UV light actions,
Ink in pipe arrangement, applicator head undergoes no deterioration.This is the situation of the ink using UV light, in the situation of the ink for not using UV light
Under, above-mentioned countermeasure is not required.
Arrange in ink discharge device and be arranged multiple applicator heads 10 of multiple nozzles of the ink for spraying ormal weight and following 3
Groove：For storing the accumulator tank 12 of ink 11；Preserve the feed trough 13 of the ink 11 that ink 11 is supplied to applicator head 10；And protect in advance
Deposit the accumulator tank 14 that ink 11 obtained from ink 11 is reclaimed from applicator head 10.Additionally, there is the control are controlled by all parts
Portion 35.Control unit 35 has processor etc., sends control to each constituting portion and indicates.Wiring is omitted in the periphery of control unit 35.
Also the various constituting portion for occurring below can be controlled.
Each groove application sealing container is isolated with extraneous air, so that ink 11 never degenerates.In order to keep the ink in each groove
11 state, it is also possible to import the noble gases such as nitrogen in groove.
Accumulator tank 12 and feed trough 13 are connected by pipe arrangement 15, and arranging in canal path enables the movement of ink 11 storing
The pump 16 carried out between groove 12 and feed trough 13.The sensor of the liquid level of detection ink 11 is provided in feed trough 13, according to biography
The data of sensor carrying out the control of pump 16 so that the liquid level of the ink 11 in feed trough 13 becomes fixed all the time.Accumulator tank 12
It is connected with pipe arrangement 17 with accumulator tank 14, arranging in canal path to make the pump 18 of 11 movement of ink.Arrange in accumulator tank 14 and use
In detection ink 11 liquid level sensor, carry out the control of pump 18 according to the data of sensor so that ink 11 liquid level into
For fixation.
Connect the different supplying tubing 19,20 of 2 length from feed trough 13 to applicator head 10.From feed trough 13 to coating
During 10 supply black 11, ink is supplied using any one supplying tubing among 2 supplying tubings 19,20.The confession of supply ink 11
Switching to pipe arrangement is using the switching valve 21 for being arranged at feed trough 13 and the switching valve of the black introduction side for being arranged on applicator head 10
22 carrying out.Supplying tubing at least 2.
Connect the different recovery pipe arrangement 23,24 of 2 length from applicator head 10 to accumulator tank 14.Reclaim pipe arrangement also at least 2
Root.When reclaiming black 11 from applicator head 10 to accumulator tank 14, using any one recovery among 2 recovery pipe arrangements 23,24
Pipe arrangement come reclaim ink 11.Switching from from applicator head 10 to the recovery pipe arrangement for reclaiming ink 11 in accumulator tank is utilized and is arranged on applicator head
10 ink reclaims the switching valve 25 of side and is arranged at the switching valve 26 of accumulator tank 14 to carry out.
In FIG, to put it more simply, applicator head 10, for storing the accumulator tank 12 of ink 11, for supplying ink to applicator head 10
11 feed trough 13, accumulator tank 14 and the mutual pipe arrangement of connection for reclaiming black 11 from applicator head 10 only respectively illustrate 1.
In fact, can also be respectively provided with multiple.
The position of any applicator head 10 in multiple applicator heads 10, can be reduced, can be in the position for reducing applicator head 10
In the state of putting, from the ejection that applicator head 10 carries out ink.Can carry out pressurizeing in feed trough 13, the connection of accumulator tank 14, reduce pressure
Pipe arrangement.By being controlled to the pressure in feed trough 13 and in accumulator tank 14, so as to feed trough 13 and accumulator tank 14 it
Between formed pressure differential.By the pressure differential of feed trough 13 and accumulator tank 14, make ink 11 from feed trough 13 by applicator head 10 to returning
Receive groove 14 to move.
In order that the liquid level of feed trough 13 and accumulator tank 14 becomes fixed, ink 11 is carried out using pump 16,18 from accumulator tank 12
Supply, or reclaimed.
So, ink 11 forms following such circulation with accumulator tank 12 as basic point：From feed trough 13 via applicator head 10,
Move to accumulator tank 14, and again return to accumulator tank 12.Now, in order that the amount that ink is circulated becomes fixed all the time, and
Pressure inside feed trough 13 and inside accumulator tank 14 is adjusted.Further, since coating amount, the black viscosity because of ink 11
Difference Deng material property can change so as to the ejection state from applicator head 10, therefore set feed trough 13 and accumulator tank
14 differential pressure condition, so as to guarantee the spray volume of required ink 11.
In the fixture that the lower section of the applicator head 10 of ink discharge device is provided for fixing workpiece (by object).Hereinafter, so-called
Lower section refers to the meaning for being close to workpiece.The fixture of fixed workpiece is connected by the robot arm with multiaxis, can be set workpiece
Put at an arbitrary position.The position of applicator head 10 is fixed, sprays ink in surface of the work when workpiece is moved from applicator head
On carry out ink coating.When making workpiece carry out action, it is set as that applicator head 10 and the distance of workpiece keep fixed distance.
The robot to workpiece setting is made previously according to the shape of workpiece with the information of the position relationship of applicator head 10
The operation program of arm.The activity of robot arm is controlled by the operation program of the robot arm so as to carry out action,
So that applicator head 10 becomes fixed with the distance of workpiece.
(embodiment 1)
Embodiment 1 is described using Fig. 2 (a)～Fig. 2 (c).Fig. 2 (a) is the axonometric chart of applicator head.Fig. 2 (b)～Fig. 2 (c)
It is the side view of applicator head.
As shown in Fig. 2 (a), following examples are shown：To with larger concavo-convex workpiece 30, spraying ink from applicator head 10 and
The pattern of regulation is formed on workpiece 30.
Now, applicator head 10 is made up of 4 applicator heads.The position of any 1 applicator head 31 among 4 applicator heads sets
At the position lower than other applicator heads 10.Only make ink spray from the applicator head 31 being set at lower position, ink is not made from other
Applicator head 10 sprays.Workpiece 30 sprays ink from applicator head 31 to workpiece and carrys out shape from the depth side shifting of applicator head 31 to nearby side
Pattern into regulation.Workpiece 30 is fixed by the robot arm with many axis mechanisms, according to robot arm and applicator head 31
Distance become fixed mode all the time and move workpiece controlling robot arm.
Fig. 2 (b), Fig. 2 (c) are illustrated and for the position of applicator head 31 to be set to the state lower than the position of other applicator heads 10
Under, the position relationship of applicator head 10 and workpiece when being coated to workpiece 30.
Fig. 2 (b) illustrates the profile for workpiece 30 having been started when applying from applicator head 31, and Fig. 2 (c) illustrated from applicator head 31
Finish profile when applying to workpiece 30.
As shown in the profile, the shape of workpiece 30 has larger concavo-convex.Even if make the workpiece 30 and applicator head 31 away from
From for fixed and move workpiece 30, due to the position of arbitrary applicator head 31 also low than the position of other applicator heads 10, so
At the end of applying from applying and starting, it may occur that the interference of other applicator heads 10 and workpiece 30.
If desired multiple ink are sprayed to workpiece 30, then various ink are imported by each applicator head 10, change by each black species
Become the position of applicator head 10, applicator head 10 carries out the ejection of ink to workpiece 30.
＜ comparative example ＞
On the other hand, as shown in the axonometric chart of Fig. 3 (a), to larger concavo-convex workpiece 30, arranged side by side with identical height
4 applicator heads 10 are set, and ink are being sprayed from arbitrary applicator head 31 to workpiece come in the case of forming predetermined pattern, applicator head 10
Can disturb with workpiece, it is impossible to form the pattern of regulation.Workpiece 30 is made from the lateral nearby side shifting of the depth of applicator head 10
While by the distance controlling of workpiece 30 and arbitrary applicator head 31 for fixing, and spray ink 11 from arbitrary applicator head 31.
Fig. 3 (b) illustrate from arbitrary applicator head 31 to workpiece 30 started apply when profile, Fig. 3 (c) illustrate from appoint
The applicator head 10 of meaning finishes profile when applying to workpiece 30.
Now, at the end of coating, such as shown in Fig. 3 (c), maintain in the distance by arbitrary applicator head 31 with workpiece 30
Into fixation in the case of, at a part for the applicator head 10 beyond arbitrary applicator head 31 and workpiece 30, interference portion 32 occurs,
The coating to 30 whole face of workpiece can not be carried out.Therefore, from applicator head to spray ink with larger concavo-convex workpiece and in workpiece
In the case of the upper pattern for forming regulation, such as shown in Fig. 2 (a) to Fig. 2 (c), the position for reducing arbitrary applicator head is needed.
＜ pressure adjusts ＞
As shown in Fig. 2 (a)～Fig. 2 (c), among by 4 applicator heads 10, the position of 1 applicator head 31 is set in and reduces
Position and in the case of being coated to workpiece 30, the problem of above-mentioned comparative example is resolved.But, reducing applicator head
When 31, the pressure oscillation in applicator head 31 is very big.
Pressure in applicator head 31 becomes following state：It is 10kPa before the position for reducing applicator head 31, is reducing painting
The position time-varying up to 15kPa of deposited head.For the situation, the ink that achieves described below is from the stabilized example of the ejection of applicator head 31
Son.
Typically, can be asked for by formula 1 in the flow with Bottomhole pressure.Δ P represents that the pressure differential in pipe arrangement, C represent biography
Conductance (conductance) proportionality constant).
Q=C Δ P (formula 1)
When the position of arbitrary applicator head 31 is reduced, in the black supply side of arbitrary applicator head 31, due to any
Applicator head 31 apply pressure increase to 15kPa from 10kPa, so flow is 15/10=1.5 times increasing.
Conversely, the ink in arbitrary applicator head 31 reclaims side, the yield of ink is 1.5 times of reductions.Thus, by reducing appointing
The position of the applicator head 31 of meaning, the ink amount so as to supply to arbitrary applicator head 31 are increased dramatically, and from arbitrary applicator head
The 31 ink amounts for reclaiming drastically are reduced.
Thus, more ink are flowed in arbitrary applicator head 31, and ink is spilt from each nozzle of arbitrary applicator head 31.Cause
Should spill so as to ink becomes drop in coating head surface from the ink of each nozzle of arbitrary applicator head 31 and adhere to.As a result, drawing
Play the unstable of ink ejection.Further, since ink drips from nozzle, there is blocking caused by ink, as a result, nozzle can occur not spraying
Go out.
Conductivity shown in formula 1 is determined by the shape of pipe arrangement, if section configuration is used as circle, by the diameter (internal diameter) of pipe arrangement
A is set to, the length of pipe arrangement is set to L, then it is general known to be showed by numerical expression 2.
C ∝ a4/L (formula 2)
When the position of arbitrary applicator head 31 is set to the position that has fallen, in order to black flow is set in black supply side
Fixed, according to formula 1, need for the value of conductivity C to be set to 1/1.5=0.67 times.
For this purpose, understanding for length L of pipe arrangement to be set to 1.5 times by formula 2.Additionally, reclaiming side with regard to ink, it is known that as long as will
The length for falling the pipe arrangement before the position of arbitrary applicator head 31 is set to 1.5 times of length of pipe arrangement when having fallen.
The selection ＞ of ＜ pipe arrangements
Thus, switching valve, the switching of the black supply side of applicator head of feed trough, before the position for reducing applicator head, are selected
Valve, so that ink compare Super long tube for 0.67 among 2 supplying tubings of ink to supplying from feed trough to arbitrary applicator head 31
Supplying tubing flowing short again, so supplies ink.
If additionally, select the switching valve 26 of the switching valve 25, accumulator tank of the recovery side of arbitrary applicator head 31, so that
It is 1.5 double-lengths that the arbitrary applicator heads 31 of Mo Xiangcong are reclaimed to accumulator tank 14 and compare short recovery pipe arrangement among 2 recovery pipe arrangements of ink
Recovery pipe arrangement flowing, so reclaim ink.
When the position of applicator head is reduced, switching valve, the switching valve of the black supply side of applicator head of feed trough are selected, with
So that ink compares, among 2 supplying tubings of supply ink, the supply that short supplying tubing is 1.5 double-lengths to from feed trough to applicator head
Pipe arrangement flows, and so supplies ink.Additionally, the switching valve of the recovery side of applicator head, the switching valve of accumulator tank is selected, so that black
It is that pipe flow is matched somebody with somebody in 0.67 times of short recovery to compare the long pipe arrangement that reclaims among 2 recovery pipe arrangements of recovery ink from applicator head to accumulator tank
Dynamic, so reclaim ink.
＜ effects ＞
As more than, when the position of applicator head 10 is reduced, the black pipe arrangement being circulated is made by switching such that it is able to wink
When ground control be flowed into applicator head ink amount.Thus, when the position of applicator head is reduced, can suppress to be flowed into applicator head
The inflow of interior ink drastically, will not occur oozing out, dripping for ink from each nozzle of applicator head, can carry out stable ejection.
So, in order to the workpiece to larger concavo-convex shape applies the pattern of regulation, need the position of arbitrary applicator head
Put and be arranged at the position for reducing, and change with canal path and black for reclaiming from applicator head to applicator head supply ink
With canal path.Change the length with canal path by the position by arbitrary applicator head 31 such that it is able to suppress to apply extremely
The big pressure oscillation of arbitrary applicator head, stable so as to realize by being circulated the ink of the flow that fixes all the time
The ejection of ink.
In addition, in above-mentioned, although the pipe arrangement of multiple different lengths is switched, but as long as flow path resistance not
Same pipe arrangement is switched over.When the position of applicator head 10 is reduced (when being close to workpiece), the supply side of ink is using stream
The high pipe arrangement of roadlock power, the side of reclaiming of ink use the low pipe arrangement of flow path resistance.
(embodiment 2)
Fig. 4 represents the brief figure of the ink discharge device of embodiments of the present invention 2.In the diagram, to constituting with Fig. 1 identicals
Key element is omitted the description using identical symbol.Unaccounted item is identical with embodiment 1.
For embodiment 2,2 supplying tubings 40,41 of applicator head 10 are connected to from feed trough 13 and are used for
2 recovery pipe arrangements 42,43 that ink 11 is reclaimed from applicator head 10 are different from embodiment 1.
Feed trough 13 is identical by length with arbitrary applicator head 10 and the diameter of pipe arrangement difference (below, refers to flow path area not
2 supplying tubings 40,41 together) connect.Lead by the switching valve 21 for being arranged at feed trough 13 and the ink for being arranged on applicator head 10
Enter the switching valve 22 of side, carry out any one supply ink among 2 supplying tubings 40,41 between feed trough 13 and applicator head 10
The switching of 11 pipe arrangement, supplies the ink of fixed flow.
From length, the different 2 recovery pipe arrangements 42,43 of the diameter of identical but pipe arrangement connect from applicator head 10 to accumulator tank 14.
The switching valve 25 of side is reclaimed by the ink for being arranged on applicator head 10 and is arranged at the switching valve 26 of accumulator tank 14, be coated 10
The switching of the pipe arrangement of any one recovery ink 11 among 2 recovery pipe arrangements 42,43 between accumulator tank 14, is adjusted to reclaim admittedly
The ink 11 of fixed flow.
(embodiment 2)
Embodiment 2 is described using Fig. 2 (a)～Fig. 2 (c), Fig. 4.As shown in Fig. 2 (a), illustrate to larger concavo-convex
Workpiece 30 from applicator head 10 spray ink formed on workpiece 30 regulation pattern when example.
Applicator head 10 arranges 4 side by side, and the position of arbitrary 1 applicator head 31 among 4 applicator heads is set in ratio
At the low position of other applicator heads 10.When the position of the arbitrary applicator head 31 is reduced, in the arbitrary applicator head 31
Pressure oscillation is very big.It is 10kPa before becoming the position of reduction applicator head for the pressure in arbitrary applicator head 31, reduces painting
The situation of the state of the 31 a height of 15kPa of position time-varying is applied, ejection stabilisation of the ink from arbitrary applicator head is sought.
When the position of arbitrary applicator head 31 among multiple applicator heads 10 is reduced, by from feed trough 13 to appoint
The applicator head 10 of meaning supplies 2 supplying tubings 40,41 of ink 11 and reclaims ink 11 from arbitrary applicator head 10 to accumulator tank 14
2 recovery pipe arrangements 42,43 switch over, so as to realize ink ejection stabilisation.
As illustrated by embodiment 1, when by the position of arbitrary applicator head 31 located at the position that has fallen, in order to
Make the ink amount supplied from feed trough 13 to applicator head 31 for fixing, need for the value of conductivity C of numerical expression 1 to be set to 1/1.5=
0.67 times.
Thus, according to numerical expression 2, as long as the diameter of supplying tubing is set to 0.9 times.Additionally, understand, when by arbitrarily
When the position of applicator head 31 is located at the position that has fallen, in order that the ink amount reclaimed from applicator head 31 to accumulator tank 14 is for fixing,
As long as the diameter of the recovery pipe arrangement before arbitrary applicator head 31 is fallen is set to 0.9 times of the diameter of pipe arrangement when having fallen i.e.
Can.
Thus, before reducing the position of arbitrary applicator head, change the switching valve 21 of feed trough 13, so that ink 11 is to from confession
It is big 41 a diameter of 1.1 times little of supplying tubing of phase diameter group among 2 pipe arrangements of ink to be supplied to groove 13 to arbitrary applicator head 31
Supplying tubing 40 flow, so supply ink 11.
Additionally, when reclaiming black 11 from arbitrary applicator head 31 to accumulator tank 14, selecting the switching of the recovery side of applicator head
Valve 26, so that the big tube diameter that reclaims of phase diameter group is that pipe flow is matched somebody with somebody in 0.9 times of little recovery among black 11 to 2 recovery pipe arrangements
Dynamic, so reclaim ink 11.
When the position of arbitrary applicator head 31 is reduced, the switching valve 21 of feed trough 13 is switched over, so that black
11 to from feed trough 13 supply to arbitrary applicator head 31 ink 11 2 supplying tubings among the big tube diameter of phase diameter group be
0.9 times little of supplying tubing 41 is supplied.Additionally, to applicator head recovery side switching valve switch over so that ink to from appoint
It is big for 1.1 times that the applicator head 31 of meaning reclaims the little tube diameter of phase diameter group among 2 recovery pipe arrangements of ink 11 to accumulator tank 14
Recovery pipe arrangement flowing, so reclaim ink 11.
So, in order to the workpiece 30 to larger concavo-convex shape applies the pattern of regulation, when the position of arbitrary applicator head 31
Put when being arranged at the position for reducing, need to change to applicator head 31 supply ink 11 supplying tubing 40,41 diameter and
For reclaiming the diameter of the recovery pipe arrangement 42,43 of ink from applicator head.
When the position of arbitrary applicator head 31 is changed, suppress because change with canal path pipe arrangement diameter and apply to
The big pressure oscillation of arbitrary applicator head, is circulated by making the ink 11 of the flow that fixes all the time, can be realized stable
The ejection of ink.
(embodiment 3)
Fig. 5 illustrates the brief figure of the ink discharge device of embodiments of the present invention 3.In Figure 5, for saying in embodiment 1
Bright and is omitted the description using identical symbol with Fig. 1 identicals element.Unaccounted item is identical with embodiment 1.
In embodiment 3, it is connected to the supplying tubing system of applicator head 10, is used for reclaiming from applicator head from feed trough 13
The recovery piping system of ink is different from embodiment 1.
The supplying tubing 50 connected from feed trough 13 to applicator head 10 and connect from applicator head 10 to accumulator tank 14 return
Receive pipe arrangement 51 and be respectively connected with 1.In the supplying tubing 50 that applicator head 10 is connected to from feed trough 13 be provided for adjustment ink
The adjustment valve 52 of quantity delivered (black flow), is provided for adjusting ink in the supplying tubing 41 for being connected to accumulator tank 14 from applicator head 10
Yield whole valve 53.By adjustment installed in the aperture of the adjustment valve 52,53 of each pipe arrangement, it is adjusted to make firm discharge
Ink 11 stream arrive applicator head 10.
If making applicator head be close to workpiece (moving downwards), reduce the aperture of adjustment valve 52,53, make ink be difficult to flow.
(embodiment 3)
Embodiment 3 is described using Fig. 2 (a)～Fig. 2 (c) and Fig. 5.As shown in Fig. 2 (a) to Fig. 2 (c), it is right to illustrate
Example when there is larger concavo-convex workpiece 30 to spray ink from applicator head 10 and form the pattern of regulation on workpiece 30.
Applicator head 10 is set up in parallel 4, and the position of the arbitrary at least one applicator head 31 among 4 applicator heads is set in
At the position lower than other applicator heads.When the position of the arbitrary applicator head 31 is reduced, in the arbitrary applicator head 31
Pressure oscillation is big.For the pressure in arbitrary applicator head 31 become reduce applicator head position before for 10kPa, reducing
The situation of the state of 15kPa is risen to during the position of applicator head, seeks ejection stabilisation of the ink from arbitrary applicator head 31.
Fig. 5 is to illustrate overall figure.When the position of arbitrary applicator head 31 among multiple applicator heads 10 is reduced, to setting
Put the aperture for adjusting valve 52 and setting in the supplying tubing 50 that ink 11 is supplied to arbitrary applicator head 31 from feed trough 13
It is adjusted coming in the aperture of the adjustment valve 53 reclaimed in pipe arrangement 51 for reclaiming ink 11 from arbitrary applicator head 31 to accumulator tank 14
Seek the ejection stabilisation of ink 11.
For this purpose, before applicator head 31 is fallen, being adjusted to the aperture for adjusting valve 52 and adjustment valve 53, so as in advance to appointing
In the applicator head 31 of meaning, the flow of flowing is adjusted, and prestores the aperture of each adjustment valve 52,53 now.
Then, fall arbitrary applicator head 31, the aperture for adjusting valve 52 and adjustment valve 53 be adjusted so that with drop
Flow before arbitrary applicator head 31 becomes same traffic down, prestores the aperture of each valve.Preset and fall arbitrarily
The aperture of the valve of adjustment valve 52 and adjustment valve 53 before applicator head 31 and after having fallen.By when applicator head 31 has been fallen,
It is set to the aperture of pre-recorded adjustment valve 52 and adjustment valve 53, the shape that the position so as to become applicator head 31 reduces
State, in applicator head 31, the flow of the ink of flowing also can maintain fixed state all the time.
So, in order to the workpiece 30 to larger concavo-convex shape applies the pattern of regulation, when the position of arbitrary applicator head 31
Put when being arranged on the position for reducing, need the adjustment valve 52 of feed trough 13 to applicator head 31 to be connected to supply ink to open
Degree, the aperture of the adjustment valve 53 for being connected to accumulator tank 14 from applicator head 31 are adjusted.When changing arbitrary applicator head 31
During position, by being arranged at the aperture adjustment for adjusting valve 52, adjustment valve 53 with canal path, suppress to apply to arbitrary applicator head
31 big pressure oscillation, is circulated by making the ink of the flow that fixes all the time such that it is able to realize the ejection of stable ink.
In addition, above-mentioned embodiment can be respectively combined.The applicator head 31 for moving downwards is at least 1, or many
Individual coating nozzle.
Illustrate the example for together with supplying tubing, recovery pipe arrangement changing flow path resistance, but it is also possible to only change arbitrarily
The flow path resistance of one side.In addition it is also possible in supplying tubing and reclaim the change side for implementing different flow path resistances in pipe arrangement
Method, means.The variation of multiple flow path resistances can also be used to 1 pipe arrangement.
Additionally, above-mentioned use blood circulation is illustrated, but can also apply to once through system.Illustrated with Fig. 6.
Fig. 6 is the variation of the ink discharge device of Fig. 1.I.e., or only include the ink discharge device with lower component：Multiple applicator heads 10；
The feed trough 13 being connected with above-mentioned multiple applicator heads 10 by supplying tubing 19,20；Control pressure in above-mentioned feed trough 13
Control unit 35；And only make the applicator head 31 of more than 1 be close to object to apply the control of ink 11 from multiple applicator heads 10
Portion processed 35.
Further, another variation is described with Fig. 7.Fig. 7 is Fig. 1,6 variation.Can also in the composition of Fig. 6
It is only have with the ink discharge device of lower component：By reclaiming the accumulator tank 14 that pipe arrangement 23,24 is connected with above-mentioned multiple applicator heads 10；
And the control unit 35 of the pressure in the above-mentioned accumulator tank 14 of control.
The switching of above-mentioned pipe arrangement, the control of the up and down action of applicator head, the control of sensor, the Stress control of groove, ink
Apply control, the adjustment control of valve, control of the movement of workpiece etc. can by 1 or multiple control units 35 (the 1st control unit,
2nd control unit, the 3rd control unit) carry out.Control unit 35 is made up of the computer for including control IC, processor etc..
Industrial Availability
The ink discharge device of the present application is not only industrial, it is also possible to use for the people's livelihood.As industrial, due to can
To stably applying ink with larger concavo-convex workpiece, it is possible to being used in the dress towards the design for complicated shape
Decorations, formation of the functional membrane of the equipment of three dimensional structure etc..Additionally, being widely used as ink discharge device.
Claims (12)
1. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough, is connected with the plurality of applicator head by supplying tubing；
1st control unit, controls the pressure in the feed trough；With
2nd control unit, makes the applicator head of more than 1 among multiple applicator heads be close to object.
2. ink discharge device according to claim 1, wherein,
The ink discharge device also includes that the 3rd control unit, the 3rd control unit make the object move relative to the plurality of head.
3. ink discharge device according to claim 1, wherein,
The ink discharge device also includes that the 4th control unit, the 4th control unit change the flow path resistance of the supplying tubing.
4. ink discharge device according to claim 1, wherein,
The ink discharge device also includes：
Accumulator tank, is connected with the plurality of applicator head by reclaiming pipe arrangement；
5th control unit, controls the pressure in the accumulator tank；With
6th control unit, changes the flow path resistance for reclaiming pipe arrangement.
5. ink discharge device according to claim 4, wherein,
To the object be close to after applicator head at the recovery pipe arrangement flow path resistance than described be close to before described in
The flow path resistance of the recovery pipe arrangement at applicator head is big.
6. ink discharge device according to claim 1, wherein,
Also include：
Accumulator tank, is connected with the feed trough and the accumulator tank；
1st pump, between the feed trough and the accumulator tank；With
2nd pump, between the accumulator tank and the accumulator tank.
7. ink discharge device according to claim 1, wherein,
To the object be close to after applicator head at the supplying tubing flow path resistance than described be close to before described in
The flow path resistance of the supplying tubing at applicator head is big.
8. ink discharge device according to claim 1, wherein,
The supplying tubing is multiple pipe arrangements that flow path cross sectional area is identical and length is different.
9. ink discharge device according to claim 8, wherein,
The ink discharge device has switching part, and the switching part switches multiple supplies and match somebody with somebody because the applicator head is close to object
Pipe.
10. ink discharge device according to claim 1, wherein,
The supplying tubing is multiple pipe arrangements that length is identical and flow path area is different.
11. ink discharge devices according to claim 1, wherein,
Have for adjusting the adjustment portion of the black flow in the supplying tubing.
A kind of 12. ink ejecting methods, including：
Operation is selected, and applicator head described at least one is selected from multiple applicator heads；
Operation is close to, applicator head described in described at least one is close to by object；
Stream operation, improves the flow path resistance of the supplying tubing to the close applicator head supply ink；With
Working procedure of coating, is applied the ink to described by object from the close applicator head.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| JP2015-173371 | 2015-09-03 | ||
| JP2015173371 | 2015-09-03 | ||
| JP2016095017A JP6450942B2 (en) | 2015-09-03 | 2016-05-11 | Inkjet apparatus and inkjet method |
| JP2016-095017 | 2016-05-11 |
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| CN106494087A true CN106494087A (en) | 2017-03-15 |
| CN106494087B CN106494087B (en) | 2018-06-26 |
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| CN201610681081.5A Active CN106494087B (en) | 2015-09-03 | 2016-08-17 | Ink discharge device and ink ejecting method |
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| CN (1) | CN106494087B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111511475A (en) * | 2017-12-19 | 2020-08-07 | 武藏工业株式会社 | Droplet discharge device and droplet discharge method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7056204B2 (en) * | 2018-02-15 | 2022-04-19 | 富士フイルムビジネスイノベーション株式会社 | Discharge device and image forming device |
| JP7211044B2 (en) * | 2018-11-30 | 2023-01-24 | 株式会社リコー | LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD |
| JP2020189444A (en) * | 2019-05-22 | 2020-11-26 | パナソニックＩｐマネジメント株式会社 | Printer |
| JP2021000727A (en) * | 2019-06-19 | 2021-01-07 | セーレン株式会社 | Image formation apparatus |
| JP7380063B2 (en) | 2019-10-18 | 2023-11-15 | セイコーエプソン株式会社 | liquid discharge device |
| JP2023087392A (en) * | 2021-12-13 | 2023-06-23 | ブラザー工業株式会社 | Liquid supply system, control method, control program, and liquid supply device |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6450942B2 (en) | 2019-01-16 |
| CN106494087B (en) | 2018-06-26 |
| JP2017047413A (en) | 2017-03-09 |
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