CN106494087B - Ink discharge device and ink ejecting method - Google Patents
Ink discharge device and ink ejecting method Download PDFInfo
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- CN106494087B CN106494087B CN201610681081.5A CN201610681081A CN106494087B CN 106494087 B CN106494087 B CN 106494087B CN 201610681081 A CN201610681081 A CN 201610681081A CN 106494087 B CN106494087 B CN 106494087B
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- applicator head
- ink
- discharge device
- control unit
- applicator
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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
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- Coating Apparatus (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present application provides a kind of ink discharge device and ink ejecting method, in the ink discharge device with multiple applicator heads, sprays ink from applicator head at the position of position being reduced to arbitrary applicator head, and forms defined pattern in the structure with larger bumps.When the state for being changed to the position for reducing head, at this time, by to connect with applicator head 2 of black feed trough of applicator head supply ink with canal path and by 2 connect from the accumulator tank of applicator head recycling ink with applicator head with canal path in, made by selection the ink in applicator head flow become it is fixed it is such with canal path so as to carrying out the black ejection of stabilization from applicator head.
Description
Technical field
The present invention relates to ink discharge devices and ink ejecting method.Particularly, be related to making ink to recycle and spray ink ink discharge device and
Ink ejecting method.
Background technology
Ink discharge device control ink is measured and ink is made to be sprayed from the applicator head with multiple nozzles.Ink discharge device is widely used in paper
It opens, describe arbitrary graphic, word etc. on the surface of plastics.
Figure, word description in, it is desirable that describe high-resolution image quality.In the manufacture of equipment, it is desirable that with high-precision
Degree forms uniform functional membrane.As a result, in ink discharge device, it is necessary to the ink from multiple nozzles ejection of applicator head be made to measure at any time
Stablize and be equably ejected.
As a result, in the ink discharge device of existing literature 1, proposition has makes the internal pressure in applicator head be always by carrying out control
It is fixed to spray stabilized technology so as to fulfill ink.In the ink discharge device, have in the confession for opposite applicator head supply ink
The Pressure Control Unit of pressure to slot and from the accumulator tank of applicator head recycling ink in control flume, to the pressure in each slot into
Row control is fixed so that the pressure in applicator head becomes.In this way, by the way that the pressure in applicator head is made to be always fixed, so as to apply
The liquid surface shape for applying the nozzle ejiction opening of head stabilizes, and can realize the stabilisation of ink ejection.
In addition, in the ink discharge device recorded in existing literature 2, connect the piping of supply ink in applicator head and introduce matching for ink
Pipe.The piping of Mo Congmo supplies is introduced into the introducing piping of ink by applicator head.Thus, it is proposed that by the way that ink cycle is made to go forward side by side
The stabilized technology realized and sprayed that gushes out of row ink.
In the ink discharge device, set into the piping of applicator head supply ink and out of applicator head extraction ink piping
Pressure sensor adjusts the value of the sensor of the pressure and makes black cycle.By carrying out the cycle of ink, to make the gas in applicator head
Bubble, foreign matter are moved to black circulating path inside applicator head.As a result, when spraying ink from applicator head, caused by bubble, foreign matter
Influence is eliminated, so stable ejection can be realized.
Citation
Patent document
Patent document 1：JP Tetsukai 2008-289983 bulletins
Patent document 2：JP Tetsukai 2012-96524 bulletins
The subject that the invention solves
In the ink discharge device recorded in existing literature 1 and existing literature 2, on condition that in workpiece (paper, the plate and knot of plastics
Structure body, glass substrate, the plate of metal and works etc.) on spray ink and formed as defined in pattern.Applicator head and workpiece as a result,
Distance is fixed.
But in the case where the shape of workpiece is that have the shape of larger bumps, the position progress to applicator head is needed
It adjusts so that its ejection that is concave-convex corresponding and carrying out ink with workpiece.This is because if applicator head and the distance of workpiece are not protected
Fixation is held, then can not definitely form defined pattern.
In the ink discharge device recorded in existing literature 1, come in the position for changing applicator head to the shape with larger bumps
Workpiece carry out ink ejection in the case of, pressure oscillation drastically can occur in head.At this point, according to the urgency inside applicator head
The measurement result of acute pressure oscillation is adjusted to make in applicator head adjusting the pressure inside feed trough and inside accumulator tank
The pressure in portion, which becomes, fixes.
But the adjustment of the pressure instantaneously drastically changed is highly difficult, the pressure inside applicator head can become high pressure
Or low pressure.As a result, from each nozzle bore of applicator head occur ink leak out, air into membership cause ink spray become unstable.
In addition, in the ink discharge device recorded in existing literature 2, come in the position for changing applicator head to larger bumps
In the case that the workpiece of shape carries out the ejection of ink, variation drastically can occur for the pressure in applicator head, in circulation stream.This
When, to the adjusting of the black supply amount of applicator head, the adjustment of black introduction volume can have little time, so as to can drastically apply high pressure to applicator head
Power and ink is made largely to ooze out from each nozzle of applicator head.
Become unstable from the ejection of applicator head as a result, depending on the situation, black dripping from applicator head can be generated.
Invention content
The present invention is used to solve above-mentioned existing subject, it is therefore intended that, a kind of ink discharge device is provided, in opposite piece significantly
Change the position of applicator head to spray from stablizing for applicator head ink when forming defined pattern, can be carried out.
Means for solving the problems
In order to achieve the above objectives, using including with the ink discharge device of lower component：Multiple applicator heads；By supplying tubing with
The feed trough of above-mentioned multiple applicator head connections；The 1st control unit controlled the pressure in above-mentioned feed trough；And make multiple
The applicator head of 1 or more is to the 2nd close control unit of object among applicator head.
In addition, use the ink ejecting method for including following process：The selection of at least one applicator head is selected from multiple applicator heads
Process；Make at least one applicator head to by the close process of object；Adjust the supplying tubing to close applicator head supply
Black flow path resistance flow path process；And from close applicator head to by the working procedure of coating of object coating ink.
Invention effect
As above, ink discharge device and ink ejecting method according to the present invention, have makes ink according to the position of applicator head
The flow flowed piping system system, valve as the position of each applicator head becomes fixed.As a result, when make multiple applicator heads it
In arbitrary applicator head position be lower and from the arbitrary head carried out the ejection of ink when, the ejection of stable ink can be carried out.
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 stereogram of the position relationship for the workpiece for representing applicator head and flat shape in the embodiment 1, Fig. 2
(b) be in the embodiment 1 represent coating starting position at applicator head and plane shape workpiece sectional view, Fig. 2 (c) be
The sectional view of the applicator head and plane shape workpiece at coating end position is represented in embodiment 1.
Fig. 3 (a) is the stereogram of the position relationship for the workpiece for representing applicator head and flat shape in the prior embodiment, Fig. 3 (b)
It is the sectional view for representing applicator head and plane shape workpiece at coating starting position in the prior embodiment, Fig. 3 (c) is in conventional example
The sectional view of the middle applicator head represented at coating end position and plane shape workpiece.
Fig. 4 is the overall structure figure for 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 for the ink discharge device for representing embodiment.
Fig. 7 is the structure chart of the variation for 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 pipings
16,18 pumps
19,20,40,41,50 supplying tubings
23,24,42,43,51 recycling pipings
21,22,25,26 switching valves
30 workpiece
31 applicator heads
32 interference portions
35 control units
52,53 adjustment valves
Specific embodiment
Hereinafter, it is described with reference to the mode that the present invention is implemented.
(embodiment 1)
Fig. 1 is the brief diagram of the ink discharge device of embodiments of the present invention 1.
Ink discharge device whole film by blocking UV light, metal lid covers entirety so that each slot under UV light actions,
Ink in piping, applicator head undergoes no deterioration.This is using the situation of the ink of UV light, in the situation of the ink without using UV light
Under, above-mentioned countermeasure is not essential.
Multiple applicator heads 10 of multiple nozzles of the ink for spraying specified amount and 3 following are arranged in ink discharge device setting
Slot：For storing the accumulator tank 12 of ink 11；Preserve the feed trough 13 for the ink 11 that ink 11 is supplied to applicator head 10；And it protects in advance
Deposit the accumulator tank 14 that ink 11 obtained from ink 11 is recycled from applicator head 10.In addition, there is the control controlled all parts
Portion 35.Control unit 35 has processor etc., and control instruction is sent out to each constituting portion.It omits and connects up on the periphery of control unit 35.
Also the various constituting portion occurred below can be controlled.
Each slot application sealing container is isolated with extraneous air, so that ink 11 never degenerates.In order to keep the ink in each slot
11 state can also import the inert gases such as nitrogen in slot.
Accumulator tank 12 and feed trough 13 are connected by piping 15, the movement for enabling ink 11 are set to store in canal path
The pump 16 carried out between slot 12 and feed trough 13.Setting is for detecting the sensor of the liquid level of ink 11 in feed trough 13, according to biography
The data of sensor carry out the control of pump 16, so that the liquid level of ink 11 in feed trough 13 becomes fixation always.Accumulator tank 12
It is connect with accumulator tank 14 with piping 17, the pumps 18 that can make 11 movement of ink is set in canal path.It sets and uses in accumulator tank 14
In detection ink 11 liquid level sensor, according to the data of sensor come carry out pump 18 control so that ink 11 liquid level into
For fixation.
The different supplying tubing 19,20 of 2 length is connected from feed trough 13 to applicator head 10.From feed trough 13 to coating
During first 10 supply ink 11, ink is supplied using any one supplying tubing among 2 supplying tubings 19,20.The confession of supply ink 11
The switching valve 21 for being set to feed trough 13 and the switching valve for the black introduction side for being arranged on applicator head 10 are utilized to the switching of piping
22 carry out.Supplying tubing at least 2.
The different recycling piping 23,24 of 2 length is connected from applicator head 10 to accumulator tank 14.Recycle piping also at least 2
Root.When recycling ink 11 from applicator head 10 to accumulator tank 14, any one recycling among 2 recycling pipings 23,24 is used
Piping come recycle ink 11.Switching from from applicator head 10 to the recycling piping that ink 11 is recycled in accumulator tank, which utilizes, is arranged on applicator head
10 ink recycles the switching valve 25 of side and is set to the switching valve 26 of accumulator tank 14 to carry out.
In Fig. 1, to put it more simply, applicator head 10, for store ink 11 accumulator tank 12, for supplying ink to applicator head 10
11 feed trough 13 only respectively shows 1 for recycling the accumulator tank 14 of ink 11 and the mutual piping of connection from applicator head 10.
In fact, it can also set respectively multiple.
In multiple applicator heads 10, the position of arbitrary applicator head 10 can be reduced, it can be in the position for reducing applicator head 10
In the state of putting, the ejection of ink is carried out from applicator head 10.In feed trough 13, accumulator tank 14 connects to be pressurizeed, depressurizes
Piping.By controlling the pressure in feed trough 13 and in accumulator tank 14, so as to feed trough 13 and accumulator tank 14 it
Between form 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
Slot 14 is received to move.
It is fixed to become the liquid level of feed trough 13 and accumulator tank 14, ink 11 is carried out from accumulator tank 12 using pump 16,18
Supply or recycled.
In this way, ink 11 is basic point with accumulator tank 12, following such cycle is formed：From feed trough 13 via applicator head 10,
It is moved to accumulator tank 14, and again returns to accumulator tank 12.At this point, fixed in order to which the amount that ink is recycled is made to become always, and
Pressure inside 13 inside of feed trough and accumulator tank 14 is adjusted.Further, since the viscosity because of the coating amount of ink 11, ink
The different so as to which the ejection state from applicator head 10 can change of material properties are waited, therefore set feed trough 13 and accumulator tank
14 differential pressure condition, so as to ensure the spray volume of required ink 11.
In the lower section of the applicator head 10 of ink discharge device, the fixture for fixing workpiece (by object) is set.It is hereinafter, so-called
Lower section refers to the meaning close to workpiece.The fixture of fixed workpiece is connected by the robot arm with multiaxis, can set workpiece
It puts at an arbitrary position.The position of applicator head 10 is fixed, sprays ink in workpiece surface from applicator head when moving workpiece
The upper coating for carrying out ink.When being acted workpiece, it is set as the distance that the distance of applicator head 10 and workpiece remains fixed.
The robot to workpiece setting is made previously according to the information of the position relationship of the shape and applicator head 10 of workpiece
The operation program of arm.The activity of robot arm is controlled by the operation program of the robot arm, is acted it,
It is fixed so that applicator head 10 and the distance of workpiece become.
(embodiment 1)
Illustrate embodiment 1 using Fig. 2 (a)~Fig. 2 (c).Fig. 2 (a) is the stereogram of applicator head.Fig. 2 (b)~Fig. 2 (c)
It is the side view of applicator head.
As shown in Fig. 2 (a), following embodiment is shown：To the workpiece 30 with larger bumps, spray ink from applicator head 10 and
Pattern as defined in being formed on workpiece 30.
At this point, applicator head 10 is made of 4 applicator heads.The position setting of arbitrary 1 applicator head 31 among 4 applicator heads
At the position lower than other applicator heads 10.Ink is only made to be sprayed from the applicator head 31 being set at lower position, is not made black from other
Applicator head 10 sprays.Workpiece 30 is moved to nearby side from the depth side of applicator head 31, and spraying ink to workpiece from applicator head 31 carrys out shape
Into defined pattern.Workpiece 30 is fixed by the robot arm with multiaxis mechanism, according to robot arm and applicator head 31
Distance robot arm is controlled to move workpiece as fixed mode always.
Fig. 2 (b), Fig. 2 (c) show for the position of applicator head 31 to be set to the state lower than the position of other applicator heads 10
Under, applicator head 10 and the position relationship of workpiece when being applied to workpiece 30.
Fig. 2 (b) has shown since applicator head 31 is to workpiece 30 sectional view during coating, and Fig. 2 (c) is shown from applicator head 31
Finish sectional view during coating to workpiece 30.
As shown in the sectional view, the shape of workpiece 30 has larger bumps.Even if make the workpiece 30 and applicator head 31 away from
From being fixed and move workpiece 30, since position of the position also than other applicator heads 10 of arbitrary applicator head 31 is low, so
Since starting coating at the end of coating, it may occur that the interference of other applicator heads 10 and workpiece 30.
If desired a variety of ink are sprayed to workpiece 30, then imports various ink by each applicator head 10, changed by each black type
Become the position of applicator head 10, applicator head 10 carries out workpiece 30 ejection of ink.
＜ comparative examples ＞
On the other hand, it is arranged side by side with identical height to the workpiece 30 with larger bumps as shown in the stereogram of Fig. 3 (a)
4 applicator heads 10 are set, in the case of forming predetermined pattern spraying ink from arbitrary applicator head 31 to workpiece, applicator head 10
It can be interfered with workpiece, defined pattern can not be formed.Making workpiece 30, from the depth of applicator head 10, laterally nearby side is moved
While the distance controlling of workpiece 30 and arbitrary applicator head 31 sprayed into ink 11 to fix, and from arbitrary applicator head 31.
Fig. 3 (b) shown since arbitrary applicator head 31 is to workpiece 30 coating when sectional view, Fig. 3 (c) show from appoint
The applicator head 10 of meaning finishes workpiece 30 sectional view during coating.
At this point, at the end of coating, as shown in Fig. 3 (c), maintained by the distance of arbitrary applicator head 31 and workpiece 30
Into in the case of fixed, at the applicator head 10 other than arbitrary applicator head 31 and a part for workpiece 30, interference portion 32 occurs,
It cannot carry out to 30 entire coating of workpiece.Therefore, from applicator head to the workpiece ejection ink with larger bumps and in workpiece
In the case of pattern as defined in upper formation, as shown in Fig. 2 (a) to Fig. 2 (c), need to reduce the position of arbitrary applicator head.
＜ pressure adjusts ＞
As shown in Fig. 2 (a)~Fig. 2 (c), the position of 1 applicator head 31 is set in and reduces among by 4 applicator heads 10
Position and in the case of being applied 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 applied reducing
Apply the position time-varying up to 15kPa of head.It is described below to realize ejection stabilized example of the ink from applicator head 31 for the situation
Son.
Generally, it can be asked in the flow with Bottomhole pressure by formula 1.Δ P represents the pressure differential in piping, and C represents to pass
Conductance (conductance) proportionality constant).
Q=C Δs P (formula 1)
At the position for reducing arbitrary applicator head 31, in the black supply side of arbitrary applicator head 31, due to arbitrary
Applicator head 31 apply pressure increase to 15kPa from 10kPa, increase so flow is 15/10=1.5 times.
On the contrary, in the ink recycling side of arbitrary applicator head 31, black yield is 1.5 times of reductions.Appointed as a result, by reducing
The position of the applicator head 31 of meaning, the ink amount so as to be supplied to arbitrary applicator head 31 increased dramatically, and from arbitrary applicator head
The ink amount of 31 recycling is drastically reduced.
More ink are flowed into arbitrary applicator head 31 as a result, and ink is leaked out from each nozzle of arbitrary applicator head 31.Cause
The ink of each nozzle from arbitrary applicator head 31 is leaked out so as to which ink becomes drop in coating head surface and adheres to.As a result, draw
Play the unstable of ink ejection.Further, since ink drips from nozzle, occur to block caused by ink, the result is that, it may occur that nozzle does not spray
Go out.
Conductivity shown in formula 1 is determined by the shape of piping, if section configuration is used as circle, by the diameter (internal diameter) of piping
A is set as, the length of piping is set as L, then is general known to show by numerical expression 2.
C ∝ a4/L (formula 2)
When the position of arbitrary applicator head 31 is set as the position fallen, in order to which black flow is set as in black supply side
It is fixed, according to formula 1, the value by conductivity C is needed to be set as 1/1.5=0.67 times.
For this purpose, it is understood the length L of piping being set as 1.5 times by formula 2.In addition, recycle side about ink, it is known that as long as will
Fall the length of the piping when length of the piping before the position of arbitrary applicator head 31 is set as having fallen 1.5 times.
The selection ＞ of ＜ pipings
As a result, before the position for reducing applicator head, the switching of the switching valve of feed trough, the black supply side of applicator head is selected
Valve, so that ink is 0.67 compared to Super long tube among 2 supplying tubings that ink is supplied from feed trough to arbitrary applicator head 31
Short supplying tubing flowing again, supplies ink in this way.
As long as in addition, select arbitrary applicator head 31 recycling side switching valve 25, the switching valve of accumulator tank 26 so that
The arbitrary applicator heads 31 of Mo Xiangcong to accumulator tank 14 recycle ink 2 recycling pipings among compared to it is short recycling piping be 1.5 double-lengths
Recycling piping flowing, recycle ink in this way.
When the position for reducing applicator head, the switching valve of feed trough, the switching valve of the black supply side of applicator head are selected, with
So that ink compares the supply that short supplying tubing is 1.5 double-lengths among 2 supplying tubings that ink is supplied from feed trough to applicator head
Piping is flowed, and supplies ink in this way.In addition, switching valve, the switching valve of accumulator tank of the recycling side of selection applicator head, so that black
The recycling piping stream for being 0.67 times short compared to long recycling piping among 2 recycling pipings that ink is recycled from applicator head to accumulator tank
It is dynamic, ink is recycled in this way.
＜ effects ＞
As more than, at the position for reducing applicator head 10, the black piping recycled is made by switching, so as to wink
When control be flowed into applicator head ink amount.As a result, at the position for reducing applicator head, it can inhibit to be flowed into applicator head
The exudation of ink will not occur from each nozzle of applicator head, drip, can carry out stable ejection for the inflow of interior ink drastically.
In this way, for pattern as defined in the workpiece coating of the shape to larger bumps, need the position of arbitrary applicator head
It puts and is arranged at the position reduced, and change to applicator head supply ink with canal path and for recycling ink from applicator head
Match canal path.Length with canal path is changed by the position by arbitrary applicator head 31, so as to inhibit to apply extremely
The big pressure oscillation of arbitrary applicator head, is recycled stable so as to realize by the ink for making fixed flow always
The ejection of ink.
In addition, in above-mentioned, although being switched to the piping of multiple and different length, as long as flow path resistance is not
Same piping switches over.When the position for reducing applicator head 10 (when having approached workpiece), black supply side uses stream
The high piping of roadlock power, black recycling side use the low piping of flow path resistance.
(embodiment 2)
Fig. 4 represents the brief diagram of the ink discharge device of embodiments of the present invention 2.In Fig. 4, pair composition identical with Fig. 1
Element uses identical symbol, omits the description.Unaccounted item is identical with embodiment 1.
For embodiment 2, it is connected to 2 supplying tubings 40,41 of applicator head 10 from feed trough 13 and is used for
2 recycling pipings 42,43 that ink 11 is recycled from applicator head 10 are different from embodiment 1.
Identical and piping diameter is different (hereinafter, referring to flow path area not by length for feed trough 13 and arbitrary applicator head 10
2 supplying tubings 40,41 together) connect.It is led by the switching valve 21 for being set to 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 piping supplies the ink of fixed flow.
2 recycling pipings 42,43 that identical but piping diameter is different from length are connected from applicator head 10 to accumulator tank 14.
Switching valve 25 and the switching valve 26 for being set to accumulator tank 14 by the ink recycling side for being arranged on applicator head 10, carry out applicator head 10
The switching of the piping of any one recycling ink 11, it is solid to be adjusted to recycling among 2 recycling pipings 42,43 between accumulator tank 14
The ink 11 of fixed flow.
(embodiment 2)
Illustrate embodiment 2 using Fig. 2 (a)~Fig. 2 (c), Fig. 4.As shown in Fig. 2 (a), show to larger bumps
Workpiece 30 sprays example of the ink in pattern as defined in formation on workpiece 30 from applicator head 10.
Applicator head 10 sets 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 for reducing the arbitrary applicator head 31, in the arbitrary applicator head 31
Pressure oscillation is very big.For the pressure in arbitrary applicator head 31 become reduce applicator head position before for 10kPa, reduce painting
The situation of the state of a height of 15kPa of position time-varying of head 31 is applied, ink is sought to be stabilized from the ejection of arbitrary applicator head.
When the position of applicator head 31 arbitrary among by multiple applicator heads 10 reduces, by from feed trough 13 to appoint
The applicator head 10 of meaning supplies 2 supplying tubings 40,41 of ink 11 and ink 11 is recycled from arbitrary applicator head 10 to accumulator tank 14
2 recycling pipings 42,43 switch over, so as to fulfill ink ejection stabilize.
As illustrated in embodiment 1, when the position of arbitrary applicator head 31 is set on the position fallen, in order to
The ink amount for making to supply from feed trough 13 to applicator head 31 needs the value by the conductivity C of numerical expression 1 to be set as 1/1.5=to fix
0.67 times.
As a result, according to numerical expression 2, as long as the diameter of supplying tubing is set as 0.9 times.In addition, it is found that when will be arbitrary
When the position of applicator head 31 is set on the position fallen, in order to which the ink amount recycled from applicator head 31 to accumulator tank 14 is made to be fixation,
As long as 0.9 times of the diameter of the piping when diameter of the recycling piping before arbitrary applicator head 31 is fallen is set as having fallen i.e.
It can.
Before the position for reducing arbitrary applicator head as a result, change the switching valve 21 of feed trough 13, so that ink 11 is to from confession
To slot 13 to arbitrary applicator head 31 supply 2 pipings of ink among it is 41 a diameter of 1.1 times big compared to the small supplying tubing of diameter
Supplying tubing 40 flow, supply in this way ink 11.
In addition, when recycling ink 11 from arbitrary applicator head 31 to accumulator tank 14, the switching of the recycling side of applicator head is selected
Valve 26, so that the recycling piping stream that ink 11 is 0.9 times small compared to the recycling tube diameter of diameter greatly among 2 recycling pipings
It is dynamic, ink 11 is recycled in this way.
When the position for reducing arbitrary applicator head 31, the switching valve 21 of feed trough 13 is switched over, so that black
11 compare the big tube diameters of diameter among 2 supplying tubings that ink 11 is supplied from feed trough 13 to arbitrary applicator head 31 is
0.9 times small of supplying tubing 41 supplies.In addition, switched over to the switching valve of the recycling side of applicator head, so that ink is to from appointing
The applicator head 31 of meaning to accumulator tank 14 recycle 2 of 11 recycling pipings of ink among small compared to diameter tube diameter it is big for 1.1 times
Recycling piping flowing, recycle in this way ink 11.
In this way, in order to which the workpiece 30 of the shape to larger bumps applies defined pattern, when the position of arbitrary applicator head 31
Put when being arranged at the position reduced, need to change to applicator head 31 supply ink 11 supplying tubing 40,41 diameter and
For recycling the diameter of the recycling piping 42,43 of ink from applicator head.
When the position for changing arbitrary applicator head 31, inhibit because change with canal path piping diameter due to apply to
The big pressure oscillation of arbitrary applicator head, is recycled by the ink 11 for making fixed flow always, can be realized stable
The ejection of ink.
(embodiment 3)
Fig. 5 shows the brief diagram of the ink discharge device of embodiments of the present invention 3.In Figure 5, for being said in embodiment 1
The bright inscape identical with Fig. 1 using identical symbol and omits the description.Unaccounted item is identical with embodiment 1.
In embodiment 3, the supplying tubing system of applicator head 10 is connected to, for being recycled from applicator head from feed trough 13
The recycling piping system of ink is different from embodiment 1.
The supplying tubing 50 connected from feed trough 13 to applicator head 10 and time connected from applicator head 10 to accumulator tank 14
It receives piping 51 and has been respectively connected with 1.It sets to adjust ink in the supplying tubing 50 for being connected to applicator head 10 from feed trough 13
The adjustment valve 52 of supply amount (black flow), sets to adjust ink in the supplying tubing 41 for being connected to accumulator tank 14 from applicator head 10
Yield whole valve 53.By adjusting mounted on each piping adjustment valve 52,53 aperture, to be adjusted to make firm discharge
Ink 11 flow to applicator head 10.
If applicator head is made (to be moved downwards) close to workpiece, reduce the aperture of adjustment valve 52,53, ink is made to be difficult to flow.
(embodiment 3)
Illustrate embodiment 3 using Fig. 2 (a)~Fig. 2 (c) and Fig. 5.As shown in Fig. 2 (a) to Fig. 2 (c), show pair
Workpiece 30 with larger bumps sprays black and in pattern as defined in formation on workpiece 30 example from applicator head 10.
Applicator head 10 is set up in parallel 4, and the position of 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 for reducing the arbitrary applicator head 31, 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, ink is sought to be stabilized from the ejection of arbitrary applicator head 31.
Fig. 5 is to show whole figure.When the position of applicator head 31 arbitrary among reducing multiple applicator heads 10, pair set
Put aperture and the setting of the adjustment valve 52 in the supplying tubing 50 that ink 11 is supplied from feed trough 13 to arbitrary applicator head 31
The aperture of adjustment valve 53 in the recycling piping 51 that ink 11 is recycled from from arbitrary applicator head 31 to accumulator tank 14, which is adjusted, to be come
The ejection of ink 11 is sought to stabilize.
For this purpose, before applicator head 31 is fallen, adjustment valve 52 and the aperture for adjusting valve 53 are adjusted, so as in advance to appointing
The flow flowed in the applicator head 31 of meaning is adjusted, and prestores the aperture of each adjustment valve 52,53 at this time.
Then, arbitrary applicator head 31 is fallen, adjustment valve 52 and the aperture for adjusting valve 53 are adjusted, so that with drop
The flow before arbitrary applicator head 31 becomes same traffic down, prestores the aperture of each valve.It presets and falls arbitrarily
The aperture of the valve of adjustment valve 52 and adjustment valve 53 before applicator head 31 and after having fallen.By when having fallen applicator head 31,
The aperture of pre-recorded adjustment valve 52 and adjustment valve 53 is set to, so as to become the shape that the position of applicator head 31 reduces
State, the interior flow of ink flowed of applicator head 31 can also maintain fixed state always.
In this way, in order to which the workpiece 30 of the shape to larger bumps applies defined pattern, when the position of arbitrary applicator head 31
It puts when being arranged on the position reduced, the adjustment valve 52 of feed trough 13 to applicator head 31 to be connected to supply ink is needed to open
The aperture of adjustment valve 53 spend, accumulator tank 14 being connected to from applicator head 31 is adjusted.When changing arbitrary applicator head 31
During position, the adjustment valve 52 of canal path is matched by being set to, adjusts the aperture adjustment of valve 53, inhibits to apply to arbitrary applicator head
31 big pressure oscillation, is recycled by the ink for making fixed flow always, so as to realize the ejection of stable ink.
In addition, the above embodiment can be respectively combined.The applicator head 31 moved downwards is at least 1 or more
A coating nozzle.
It illustrates the example for changing flow path resistance together with supplying tubing, recycling piping, but can also only change arbitrary
The flow path resistance of one side.In addition it is also possible in supplying tubing and recycling piping, implement the change side of different flow path resistances
Method, means.The variation of multiple flow path resistances can also be used 1 piping.
In addition, above-mentioned be illustrated, but can also apply to once through system using the circulatory system.Illustrated with Fig. 6.
Fig. 6 is the variation of the ink discharge device of Fig. 1.I.e. or only include with the ink discharge device of lower component：Multiple applicator heads 10；
The feed trough 13 being connect by supplying tubing 19,20 with above-mentioned multiple applicator heads 10；Control the pressure in above-mentioned feed trough 13
Control unit 35；And the applicator head 31 of 1 or more is only made to approach to apply black 11 control to object from multiple applicator heads 10
Portion 35 processed.
Further, another variation is illustrated with Fig. 7.Fig. 7 is Fig. 1,6 variation.It can also in the composition of Fig. 6
It is only to have with the ink discharge device of lower component：The accumulator tank 14 being connect by recycling piping 23,24 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 piping, the control of the up and down action of applicator head, the control of sensor, slot pressure control, ink
Coating control, the adjustment control of valve, control of movement of workpiece etc. can by 1 or multiple control units 35 (the 1st control unit,
2nd control unit, the 3rd control unit) it carries out.Control unit 35 controls the computer of IC, processor etc. to form by including.
Industrial Availability
The ink discharge device of the present application be not only it is industrial, also can be used in the people's livelihood use.As industrial, due to can
Ink is stably coated to the workpiece with larger bumps, so the dress towards the design for complicated shape can be used in
The formation of functional membrane of equipment etc. of decorations, three-dimensional structure.In addition, it is widely used as ink discharge device.
Claims (12)
1. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough is connect by supplying tubing with the multiple applicator head；
1st control unit controls the pressure in the feed trough；With
2nd control unit, makes to be not all of among multiple applicator heads but the applicator head of 1 or more is close to object.
2. ink discharge device according to claim 1, wherein,
The ink discharge device further includes the 3rd control unit, and the 3rd control unit makes the object be moved relative to the multiple head.
3. ink discharge device according to claim 1, wherein,
The ink discharge device further includes the 4th control unit, and the 4th control unit changes the flow path resistance of the supplying tubing.
4. ink discharge device according to claim 1, wherein,
The ink discharge device further includes：
Accumulator tank is connect by recycling piping with the multiple applicator head；
5th control unit controls the pressure in the accumulator tank；With
6th control unit changes the flow path resistance of the recycling piping.
5. ink discharge device according to claim 4, wherein,
It further includes：
Accumulator tank is connect 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.
6. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough is connect by supplying tubing with the multiple applicator head；
1st control unit controls the pressure in the feed trough；
2nd control unit makes the applicator head of 1 or more among multiple applicator heads close to object；With
4th control unit changes the flow path resistance of the supplying tubing,
To the object close to after applicator head at the recycling piping flow path resistance than it is described close to before described in
The flow path resistance of the recycling piping at applicator head is big.
7. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough is connect by supplying tubing with the multiple applicator head；
1st control unit controls the pressure in the feed trough；With
2nd control unit makes the applicator head of 1 or more among multiple applicator heads close to object,
To the object close to after applicator head at the supplying tubing flow path resistance than it is described close to before described in
The flow path resistance of the supplying tubing at applicator head is big.
8. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough is connect by supplying tubing with the multiple applicator head；
1st control unit controls the pressure in the feed trough；With
2nd control unit makes the applicator head of 1 or more among multiple applicator heads close to object,
The supplying tubing is multiple pipings 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 have switching part, the switching part because the applicator head to object close to due to switch it is multiple it is described supply match
Pipe.
10. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough is connect by supplying tubing with the multiple applicator head；
1st control unit controls the pressure in the feed trough；With
2nd control unit makes the applicator head of 1 or more among multiple applicator heads close to object,
The supplying tubing is multiple pipings that length is identical and flow path area is different.
11. a kind of ink discharge device, including：
Multiple applicator heads；
Feed trough is connect by supplying tubing with the multiple applicator head；
1st control unit controls the pressure in the feed trough；With
2nd control unit makes the applicator head of 1 or more among multiple applicator heads close to object,
It is useful for adjusting the adjustment section of black flow in the supplying tubing.
12. a kind of ink ejecting method, including：
Process is selected, applicator head described at least one is selected from multiple applicator heads；
Close to process, make applicator head described in described at least one close to by object；
Flow path process improves the flow path resistance of the supplying tubing to close applicator head supply ink；With
Working procedure of coating applies the ink from the close applicator head to described by object.
Applications Claiming Priority (4)
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| JP2015-173371 | 2015-09-03 | ||
| JP2015173371 | 2015-09-03 | ||
| JP2016-095017 | 2016-05-11 | ||
| JP2016095017A JP6450942B2 (en) | 2015-09-03 | 2016-05-11 | Inkjet apparatus and inkjet method |
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| CN106494087B true CN106494087B (en) | 2018-06-26 |
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| JP6941365B2 (en) * | 2017-12-19 | 2021-09-29 | 武蔵エンジニアリング株式会社 | Droplet ejection device and droplet ejection method |
| 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 |
| CN114434796A (en) * | 2021-12-28 | 2022-05-06 | 郭超 | 3D printing control method, device and equipment and 3D printing system |
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| JP2001270094A (en) * | 2000-03-27 | 2001-10-02 | Seiko Epson Corp | Printing in consideration of deformation of printing medium |
| JP3978687B2 (en) * | 2004-03-22 | 2007-09-19 | 富士フイルム株式会社 | Liquid supply apparatus and image forming apparatus |
| JP4664268B2 (en) * | 2006-11-30 | 2011-04-06 | 紀州技研工業株式会社 | Inkjet printer |
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| CN106494087A (en) | 2017-03-15 |
| JP6450942B2 (en) | 2019-01-16 |
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