CN107297954A

CN107297954A - The cleaning device and liquid injection apparatus of jet head liquid

Info

Publication number: CN107297954A
Application number: CN201710241015.0A
Authority: CN
Inventors: 绿川雄
Original assignee: SII Printek Inc
Current assignee: SII Printek Inc
Priority date: 2016-04-14
Filing date: 2017-04-13
Publication date: 2017-10-27

Abstract

The cleaning device and liquid injection apparatus for the jet head liquid that the ink for being attached to spit face can effectively be removed are provided.Possess：Head piece (96A, 96B), it is impregnated with cleaning fluid, and the spit face of ink gun can be connected to, and it is capable of the pushing and pressing part (94A, 94B) of elastic deformation, it is configured in the side opposite with spit face relative to head piece (96A, 96B), and head piece (96A, 96B) is pushed against in spit face.

Description

The cleaning device and liquid injection apparatus of jet head liquid

Technical field

The present invention relates to the cleaning device of jet head liquid and liquid injection apparatus.

Background technology

Ink-jet printer possesses the ink gun that is moved back and forth along main scanning direction and along the pair orthogonal with main scanning direction Transport the conveyer of printing medium (for example, paper etc.) in scanning direction.Ink gun is in the mistake moved back and forth along main scanning direction Cheng Zhong, passes through the ink of nozzle bore discharge droplet-like.Hit in by ink on printing medium, each is recorded to printing medium Plant information.

In addition, in ink-jet printer, in order to maintain, recover the discharge performance of nozzle bore, being equipped among ink gun The cleaning device that the face (hereinafter referred to as spit face) of nozzle bore opening is cleaned.For example, in following patent literature 1, it is open The cleaning device ejection of cleaning fluid will be impregnated with spit face, to remove the composition for the ink for being attached to spit face.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2007-50608 publications.

The content of the invention

The invention problem to be solved

However, in the composition of above-mentioned patent document 1, exist and be difficult to throughout the overall equably ejection cleaning device of spit face, it is difficult The problem of effectively to remove the ink for being attached to spit face.

Mode involved in the present invention provides the jet head liquid that can effectively remove the ink for being attached to spit face Cleaning device and liquid injection apparatus.

The solution used to solve the problem

In order to solve the above problems, the cleaning device of the jet head liquid involved by a mode of the invention possesses：Head piece, its Cleaning fluid is impregnated with, and the jet face of spray-hole opening among jet head liquid can be connected to, and is capable of elastic deformation Part is pushed against, it is configured in the side opposite with the jet face relative to the head piece, and the head piece is pushed against in described Jet face.

According to the manner, head piece is pushed against in jet face by using the pushing and pressing part for being capable of elastic deformation, part is pushed against Copy fluctuating of jet face etc. and flexibly deform.Thereby, it is possible to throughout the entirety of jet face equably ejection head piece.Especially Ground, because head piece is small with the area of the opening portion of per unit area compared with the pushing and pressing part formed as Foamex, therefore The contact area of a piece and jet face can be increased.Thereby, it is possible to effectively remove the liquid etc. for being attached to jet face.

In aforesaid way, the pushing and pressing part can also be formed by Foamex.

According to the manner, cleaning fluid can be held in the inside of pushing and pressing part, cleaning fluid is supplied thus, it is possible to correct piece. As a result, the drying of a piece can be suppressed.

It in aforesaid way, can also be among the head piece, be the one of the main scanning direction of the jet head liquid The first end of side end is immersed in the cleaning fluid stream for storing cleaning fluid, is the main scanning direction of the jet head liquid The second end of end side and the cleaning fluid stream interval.

According to the manner, the cleaning fluid for being reserving at cleaning fluid stream is infiltrated in by capillarity etc. from first end In head piece.The cleaning fluid for being infiltrated in a piece uniaxially permeates from first end towards the second end.Thus, it is possible to will using head piece with Discharged for the cleaning fluid of the cleaning of jet face from the second end.Moreover, fresh cleaning can be continuously fed from first end Liquid, can suppress the drying of a piece.

In aforesaid way, it can also be that the pushing and pressing part possesses and going to the from the first end of the head piece The multiple pushing and pressing parts being set up in parallel on the bearing of trend of two ends.

In accordance with the invention it is possible to by the global shape for the pushing and pressing part for being difficult to be shaped as intended shape if being integrally formed Be formed as intended shape.

It in aforesaid way, can also be among the multiple pushing and pressing part, the head be located on the bearing of trend The first pushing and pressing part near the first end of piece is formed by the Foamex even steeped, among the multiple pushing and pressing part, The second pushing and pressing part on the bearing of trend near the second end of the head piece is formed by the Foamex of single bubble.

According to the manner, because pushing and pressing part is formed by Foamex, therefore cleaning fluid can be kept using pushing and pressing part, can pressed down Head piece processed, the drying for pushing against part.Especially, because the first pushing and pressing part is formed by the Foamex even steeped, therefore pushed against with second Block is compared, and can keep more cleaning fluid.Moreover, the cleaning fluid kept using the first pushing and pressing part is penetrated into by single bubble at leisure The second pushing and pressing part formed.Thus, easily will for jet face cleaning cleaning fluid from the beginning piece the second end discharge.Moreover, Fresh cleaning fluid can be continuously fed from first end, the drying of a piece can be suppressed.

In aforesaid way, the pair that the spray-hole intersects in the main scanning direction with the jet head liquid can also be Interval arranges multiple and constitutes nozzle bore row on scanning direction, among the pushing and pressing part, with the spray-hole row phase To Part I it is prominent towards the jet face relative to the Part II beyond the Part I.

According to the manner, head piece can be reliably pushed against in spray-hole row by pushing against the Part I of part.Thus, Liquid for being attached to around spray-hole etc. can reliably be removed.

In aforesaid way, the Part I and Part II segmentation structure of the pushing and pressing part can also be Into.

According to the manner, the Part I and Part II for pushing against part are copied fluctuating of jet face etc. and flexibly become Shape.Thereby, it is possible to throughout the entirety of jet face equably ejection head piece.

In aforesaid way, it can also be among the pushing and pressing part, the Part I and the Part II phase Than for hard.

Liquid injection apparatus involved by the mode of the present invention possesses the liquid spray that can be moved along main scanning direction Penetrate head and the cleaning device involved by said one mode.

According to the manner, due to possessing the cleaning device of aforesaid way, therefore can provide can maintain discharge performance for a long time , the high liquid injection apparatus of reliability.

Invention effect

According to the mode of the present invention, the liquid for being attached to jet face can be effectively removed.

Brief description of the drawings

Fig. 1 is the summary pie graph of the printer involved by embodiment；

Fig. 2 is the stereogram of the ink gun involved by embodiment；

Fig. 3 is the exploded perspective view of the ink gun involved by embodiment；

Fig. 4 is the stereogram of the cleaning device involved by embodiment；

Fig. 5 is the side view from the cleaning unit involved by embodiment in terms of the side of X-direction；

Fig. 6 is the stereogram of the balladeur train cover involved by embodiment；

Fig. 7 is to show that cover unit is in the summary structure of ink gun, balladeur train and cover unit in terms of X-direction of the state of release position Cheng Tu；

Fig. 8 is to show that cover unit is in the summary of ink gun, balladeur train and cover unit in terms of X-direction of the state of balladeur train cover position Pie graph；

Fig. 9 is to show that cover unit is in the summary structure of ink gun, balladeur train and cover unit in terms of X-direction of the state of head-shield position Cheng Tu；

Figure 10 is the stereogram of the head-shield mechanism involved by embodiment；

Figure 11 is the sectional view of the squeegee unit suitable with Fig. 4 XI-XI lines；

Figure 12 is the summary pie graph of the cleaning solution supplying mechanism involved by embodiment；

Figure 13 is the action specification figure for illustrating to whisk off method；

Figure 14 is the action specification figure for illustrating to whisk off method；

Figure 15 is the action specification figure for illustrating to whisk off method；

Figure 16 is the action specification figure for illustrating balladeur train cover method；

Figure 17 is the action specification figure for illustrating head-shield method；

Figure 18 is for illustrating that lettering is awaited orders the flow chart of method；

Figure 19 is the stereogram for the variation for showing scraping plate mechanism.

Embodiment

Hereinafter, with reference to the accompanying drawings of embodiment involved in the present invention.In the following description, as possessing the present invention A mode involved by liquid injection head cleaning apparatus liquid injection apparatus, lift using ink to printing medium progress Illustrated exemplified by the ink-jet printer (hreinafter referred to as printer) of record.In the accompanying drawing used in the following description, it is It is the size that can be recognized to make each part, suitably changes the engineer's scale of each part.

[printer]

Fig. 1 is the summary pie graph of the printer 1 in present embodiment.

As shown in figure 1, printer 1 is, for example, to be used for the large-scale printer 1 of industry use etc..Printer 1 possesses conveyer 2nd, ink supplying mechanism 3, sweep mechanism 4, ink gun 5 and cleaning device 6.In addition, symbol 7 is to constitute the outward appearance of printer 1 Framework.Framework 7 accommodates above-mentioned each composition article.

In addition, in the following description, being illustrated as needed using X, Y, Z rectangular coordinate system.In the situation Under, X-direction is consistent with printing medium P (for example, paper etc.) carriage direction (sub-scanning direction).Y-direction is swept with ink gun 5 Retouch direction (main scanning direction) consistent.Z-direction (first direction) represents the short transverse orthogonal with X-direction and Y-direction.

Conveyer 2 transports printing medium P in X direction.Specifically, conveyer 2 possesses is extended along Y-direction Grid roller (grid roller) 11, with grid roller 11 extend parallel to set pinch roll (pinch roller) 12 and Make the drive mechanisms (not shown) such as the motor that grid roller 11 is pivoted.

Ink supplying mechanism 3 possess ink storage tank 13, the ink pipe arrangement 14 for connecting ink storage tank 13 and ink gun 5, with And by the supply pump (not shown) of the providing ink in ink storage tank 13 to ink gun 5.

Multiple ink storage tanks 13 are arranged along Y-direction.For example accommodate Huang respectively in each ink storage tank 13, it is fuchsin, green grass or young crops, black Deng a variety of (being in the present embodiment four kinds) inks of different colours.In addition, the species of ink is not limited to four kinds, can be appropriate Change on ground.

Ink pipe arrangement 14 is, for example, the flexible hose with pliability.Ink pipe arrangement 14 is by each ink storage tank 13 and each ink-jet Connected respectively between first 5.

Supply pump in ink pipe arrangement 14 to pressurizeing, to send out ink to ink gun 5 by ink pipe arrangement 14.

Sweep mechanism 4 makes ink gun 5 along Y-direction shuttle-scanning.Specifically, sweep mechanism 4, which possesses, is equipped with ink gun 5 Balladeur train 21 and the drive mechanism 22 that makes balladeur train 21 be moved along Y-direction.

Drive mechanism 22 possesses a pair of the pulleys 24 configured along Y-direction interval and (only shows a pulley in Fig. 1 24) endless belt 25 that, is wrapped between a pair of pulleys 24 and the drive motor 26 of a rotation driving of pulley 24 is made.

Balladeur train 21 is constituted in the way of it can be moved on the guide rail (not shown) extended along Y-direction.Carried in balladeur train 21 There are multiple ink guns 5.In the example in the figures, spue the multiple (in this reality of the different colours ink such as Huang, fuchsin, green grass or young crops, black respectively Apply in mode is four) ink gun 5 is equipped on balladeur train 21.

Then, ink gun 5 is illustrated.Fig. 2 is the stereogram of ink gun 5.Fig. 3 is the exploded perspective view of ink gun 5.In addition, each spray Ink first 5 is all formed in addition to the color for the ink being supplied to by same constitute.Therefore, in the following description, by a spray Ink first 5 is illustrated as an example, and omits the explanation of other ink guns 5.

As shown in Figure 2 and Figure 3, ink gun 5 is two row formed by multiple nozzle bores 31,32 of discharge ink throughout two row The ink gun 5 of type.

Ink gun 5 mainly possesses first chip 33 and second chip 34, nozzle plate 35, nozzle casing 36 and nozzle Protector 37.In the following description, the direction of nozzle plate 35 will be gone under relative to head chip 33,34 among Z-direction Side, and the direction left relative to head chip 33,34 from nozzle plate 35 is illustrated as top.

First chip 33 is the top ends discharge ink from the passage bearing of trend (Z-direction) of aftermentioned discharge passage 43 Type is penetrated on so-called side.

First chip 33 is laminated by the first activation plate 41 and the first cover plate 42 and constituted in the Y direction.

First activation plate 41 is the so-called unipolar basic plate that polarised direction through-thickness (Z-direction) is set as a direction. In addition, the ceramic substrate such as including PZT (lead zirconate titanate) is preferably used in the first activation plate 41.In addition, first actuates Plate 41 can also different two panels piezoelectric substrate be laminated and formed (so-called chevron type) in z-direction by polarised direction.

On the surface (towards the face of the first cover plate 42) of the first activation plate 41, interval is set side by side with many in X direction Individual passage 43,44.Each passage 43,44 is formed as linear along Z-direction respectively, also, at least in the lower end of the first activation plate 41 Opening at face.Each passage 43,44 is separated in X direction respectively by the driving wall 45 formed by the first activation plate 41.

Above-mentioned multiple passages 43,44 be filled the discharge passage 43 of ink and be not filled ink non-discharge lead to Road 44.Discharge passage 43 and non-discharge passage 44 are alternately arranged configuration in the X direction.In addition, in passage 43,44 inner surfaces (driving wall 45), driving electrodes (not shown) are formed with by evaporation etc..Driving electrodes are via flexible printed board (not shown) And driving voltage is applied in, so as to deform driving wall 45 by piezoelectricity longitudinal slip effect.

First cover plate 42 is formed as rectangular shape in the plan view in terms of Y-direction.First cover plate 42 makes the first rush The upper end of dynamic plate 41 is engaged in the surface of the first activation plate 41 in the state of exposing.

First cover plate 42 has common ink chamber 46 and multiple slits 47.

Common ink chamber 46 is formed in the position equal with the upper end of discharge passage 43 in z-direction.Common ink chamber 46 are recessed towards the back side (towards the face of the first activation plate 41) of the first cover plate 42, and are extended in X direction.Ink passes through upper State ink supplying mechanism 3 (reference picture 1) and flow into common ink chamber 46.

Slit 47 is formed among common ink chamber 46 and the opposite position in the Y direction of discharge passage 43.Slit 47 will With being respectively communicated with each discharge passage 43 in common ink chamber 46.On the other hand, non-discharge passage 44 is not communicated in common ink In room 46.

Second chip 34 is laminated by the second activation plate 51 and the second cover plate 52 and constituted in the Y direction.Each head chip 33, 34 are integrally formed by the way that the back side of the first activation plate 41 and the second activation plate 51 is engaged with each other.In the following description, On composition same with first chip 33 in second chip 34, it is accompanied by sometimes with first identical symbol of chip 33 simultaneously Omit the description.

The discharge passage 43 of discharge passage 43 and non-discharge passage 44 relative to first chip 33 of second chip 34 And the arrangement spacing of non-discharge passage 44 is arranged with staggering half spacing.That is, the discharge passage 43 of each head chip 33,34 each other with And the non-mutual arrangement of discharge passage 44 is staggered.In this case, the discharge passage 43 and second core of first chip 33 The non-discharge passage 44 of piece 34 is opposite in the Y direction, and the non-discharge passage 44 of first chip 33 and second chip 34 are told Go out passage 43 opposite in the Y direction.In addition, between each head chip 33,34, can suitably change discharge passage 43 and non- The arrangement spacing of discharge passage 44.In addition, between each head chip 33,34, discharge passage 43 is each other and non-discharge passage 44 It can be formed in equal position, can also be formed in different positions in the X direction each other.

Nozzle casing 36 is the plate-shaped member for being formed as rectangular shape from the plan view profile in terms of Z-direction.In nozzle casing 36, it is formed with the embedded hole 55 for running through nozzle casing 36 along Z-direction.First chip 33 and second chip 34 are together entrenched in In embedded hole 55.In the example in figure 3, each head chip 33,34 is embedding in the way of lower surface is flushed with the lower surface of nozzle casing 36 Close in embedded hole 55.

As shown in figure 3, nozzle plate 35 is fixed under each head chip 33,34 and nozzle casing 36 such as by bonding End face.Nozzle plate 35 using the monolayer constructions based on resin material (polyimides etc.), metal material (SUS etc.), glass etc. or It is lit-par-lit structure.In addition, the thickness of nozzle plate 35 is, for example, 50 μm or so.

In nozzle plate 35, multiple nozzle rows (first jet row 56 and the second nozzle row extended along Y-direction are formed with 57).Interval is extended parallel to each other each nozzle rows 56,57 in the X direction.

First jet row 56 have the above-mentioned first jet hole 31 for running through nozzle plate 35 along Z-direction.31 points of first jet hole Do not formed among nozzle plate 35 with the discharge passage 43 of first chip 33 opposite position in z-direction.That is, first jet Interval is linearly arranged in the Y direction in hole 31.

Second nozzle row 57 have the above-mentioned second nozzle hole 32 for running through nozzle plate 35 along Z-direction.32 points of second nozzle hole Do not formed among nozzle plate 35 with the discharge passage 43 of second chip 34 opposite position in z-direction.That is, second nozzle Interval is linearly arranged in the Y direction in hole 32.In addition, each nozzle bore 31,32 is formed as going to lower section with from top The taper that front end is tapered.

As shown in Figure 2 and Figure 3, nozzle guard part 37 is, for example, that SUS etc. sheet material is implemented formed by punch process.Spray Mouth protector 37 is formed as the box being up open.Nozzle guard part 37 covers from below in the state of being embedded in nozzle casing 36 outside Lid nozzle plate 35.

With the opposite part in z-direction of said nozzle row 56,57 among nozzle guard part 37, it is respectively formed with along Z The exposed hole (the first exposed hole 58 and the second exposed hole 59) of nozzle guard part 37 is run through in direction.Each formation of exposed hole 58,59 For the slit-shaped extended along Y-direction.Each nozzle rows 56,57 are exposed to outside by corresponding exposed hole 58,59.

Exposed among the lower surface of nozzle guard part 37 and the lower surface of nozzle plate 35 by exposed hole 58,59 Part constitutes the spit face of ink gun 5.In the ink gun 5 of present embodiment, because nozzle plate 35 is covered by nozzle guard part 37 Lid, therefore the opening at the position that the lower surface relative to nozzle guard part 37 is recessed upward of nozzle bore 31,32.That is, this implementation The spit face of mode is to be constituted with the convex surface being made up of the lower surface of nozzle guard part 37 and by the lower surface of nozzle plate 35 Concave surface male and fomale(M＆F).

Fig. 4 is the stereogram of cleaning device 6.

In addition, in the printer 1 of present embodiment, as shown in figure 4, multiple ink guns 5 are being arranged as staggered shape Balladeur train 21 is equipped under state.In this case, in the Y direction a part for the nozzle rows 56,57 of adjacent ink gun 5 from Y side It is overlapping to seeing.But, the layout of each ink gun 5 can be changed suitably.For example, it is also possible to the nozzle rows 56 of each ink gun 5, 57 overall modes overlapping in terms of Y-direction arrange each ink gun 5.In addition, the quantity for being equipped on the ink gun 5 of balladeur train 21 also can Suitably change.

As shown in figure 1, ink gun 5 by the movement to Y-direction of balladeur train 21 lettering region S with cleaning region C it Between move.Lettering region S is the upper area of printing medium P (conveyer 2).Ink gun 5 is in the print to printing medium P Word is moved back and forth when acting in the S of lettering region along Y-direction.

Cleaning region C is the region for being located at Y-direction side relative to lettering region S.Ink gun 5 is when safeguarding, driving stops Cleaning region C is moved to when only etc..

As shown in figure 4, cleaning device 6 is located at lower section in above-mentioned cleaning region C relative to ink gun 5.Specifically, sanitizer cartridge Put 6 and possess basic framework 60, cleaning unit 61, cleaning solution supplying mechanism 62 (reference picture 12) and the cleaning (reference of liquid storage tank 63 Figure 12).

Basic framework 60 supports cleaning unit 61 in the way of it can move in X direction.Basic framework 60 is in terms of X-direction Front view in be formed as the C-shaped that is open upward.A pair of foundation side walls opposite in the Y direction among basic framework 60 Portion 60a, is configured with foundation guide rail 64.Foundation guide rail 64 extends in X direction in each base side wall portion 60a upper end.

Cleaning unit 61 is configured in the inner side of above-mentioned basic framework 60.Cleaning unit 61 possesses unit framework 65, cover unit 66 and squeegee unit 67.

Unit framework 65 is formed as the box being open upward.Opposite in the Y direction a pair among unit framework 65 One side of sidewall portion 65a is supported on foundation guide rail 64 with that can slide mobile mode in X direction.

Cleaning unit 61 by the action of drive mechanism (not shown) relative to basic framework 60 can in X direction be moved Dynamic mode is constituted.Specifically, cleaning unit 61 in the plan view in terms of Z-direction with positioned at cleaning region C it is each Opposite position and moved from avoiding of avoiding of each ink gun 5 between position (reference picture 15) that ink gun 5 is overlapped.In addition, making For drive mechanism, it can be constituted using band, chain, trapezoidal screw, ball screw etc. are various.In the following description, sometimes by Y The direction that lettering region S is gone among direction is referred to as the inner side of Y-direction, and the direction for going to cleaning region C is referred to as into the outer of Y-direction Side.In addition, the direction referred to as side for opposite position being gone among X-direction, and it is referred to as another to go to the direction of avoiding position Side.

Fig. 5 is the side view from cleaning unit 61 in terms of the side of X-direction.

As shown in figure 5, second sidewall portion 65b opposite in the X direction among unit framework 65, is configured with unit guiding Part 71.Unit guiding piece 71 is the cam path for running through second sidewall portion 65b in X direction.Unit guiding piece 71 is in each second sidewall Interval is respectively formed with two in the Y direction in portion 65b.In addition, each unit guiding piece 71 respectively constitutes identical shape.Cause This, in the following description, a unit guiding piece 71 is illustrated as an example, and omit other unit guiding pieces 71 Explanation.

It is stepped that unit guiding piece 71 is formed as gradually upward extending with the outside for going to Y-direction.It is specific and Speech, unit guiding piece 71 is by subordinate portion 71a, first connecting portion 71b, middle rank portion 71c, second connecting portion 71d and higher level portion 71e It is connected along Y-direction and is formed.

Subordinate portion 71a, middle rank portion 71c and higher level portion 71e linearly extend along Y-direction respectively.

First connecting portion 71b extends upward with the outside for going to Y-direction.First connecting portion 71b is by subordinate portion 71a And connected between middle rank portion 71c.

Second connecting portion 71d extends upward with the outside for going to Y-direction.Second connecting portion 71d is by intermediate portion 71c And connected between higher level portion 71e.

As shown in figure 4, cover unit 66 is configured in the inner side of unit framework 65.Cover unit 66 possess balladeur train cover mechanism 73, with And head-shield mechanism 75.

Balladeur train cover mechanism 73 is the part for the spit face of ink gun 5 to be kept as to moistening.Balladeur train cover mechanism 73 has The balladeur train cover 78 of cover framework 77 and configuration on cover framework 77.

As shown in figure 5, the supporting pin 79 extended in X direction runs through cover framework 77.The two end portions of the X-direction of supporting pin 79 It Guan Chuan not insert in unit guiding piece 71 opposite in the X direction among above-mentioned each unit guiding piece 71.Thus, cover unit 66 with It can be constituted as the slip for going to Y-direction is mobile along the mode that Z-direction is moved.Specifically, cover unit 66 is in supporting pin 79 are located at balladeur train cover position and the supporting pin 79 that the release position in subordinate portion 71a, supporting pin 79 are located in middle rank portion 71c Movement is slided between head-shield position in higher level portion 71e.

It is located at the part on the outside of Y-direction among the cover framework 77, provided with cunning can be sticked in moving for balladeur train 21 The stop wall portion 81 of frame 21.The part that stop wall portion 81 is located on the outside of Y-direction among cover framework 77 is provided projectingly upward.Only Dynamic wall portion 81 is in opposite position in cleaning unit 61, and (the hereinafter referred to as cover initial bit of cover unit 66 when being in release position Put), overlapped in terms of Y-direction with balladeur train 21.When in cover initial position, balladeur train 21 is gone on the outside of Y-direction with balladeur train 21 Movement and abut (engaging) in stop wall portion 81.Thus, cover framework 77 is with the movement gone on the outside of Y-direction of balladeur train 21 With movement on the outside of the Y-direction in the same direction of balladeur train 21 1.On the other hand, stop wall portion 81 is with the shifting gone on the inside of Y-direction of balladeur train 21 Move and be spaced with balladeur train 21.Thus, the engaging of stop wall portion 81 and balladeur train 21 is released.

Between cover framework 77 and unit framework 65, provided with making linkage 83 of the cover unit 66 to Y-direction medial movement. Linkage 83 possesses connecting rod bar 84 and force application part 85.

Connecting rod bar 84 is the plate-shaped member extended along Z-direction.Connecting rod bar 84 is set up in first linked with unit framework 65 Between rotary shaft 86 and the second rotary shaft 87 linked with unit framework 65.Specifically, the first rotary shaft extended in X direction 86 through the bottom of insertion connecting rod bar 84.The bottom of connecting rod bar 84 with can relative to unit framework 65 unit bottom wall part 65c is constituted around the mode that the first rotary shaft 86 is rotated.

In the upper end of connecting rod bar 84, the bullport 88 for running through connecting rod bar 84 along Y-direction is formed with.Bullport 88 is along even The elongated hole of the bearing of trend extension of bar strip 84.The second rotary shaft 87 extended in X direction is in insertion bullport 88.I.e., even Bar strip 84, and can be relative to cover unit 66 along Z-direction phase can be rotated relative to cover unit 66 around the second rotary shaft 87 Mobile mode is constituted.

Force application part 85 is between connecting rod bar 84 and unit framework 65.Force application part 85 is, for example, torsion-coil spring. Force application part 85 exerts a force towards the inner side (release position) of Y-direction to cover unit 66.

As shown in figure 4, balladeur train cover 78 is arranged on unit framework 65.Balladeur train cover 78 is formed as the box being open upward.

Fig. 6 is the stereogram of balladeur train cover 78.

As shown in fig. 6, in the bottom wall part of balladeur train cover 78, being formed with the cleaning fluid stream 90 circulated for cleaning fluid.Cleaning Liquid stream 90 mainly has filter washing water inlet stream 100, distribution stream 101, waste liquid stream 102 and rinse liquid outlet stream 103。

Filter washing water inlet stream 100 extends among balladeur train cover 78 is interior on the opposite side of X-direction along Y-direction.Cleaning fluid enters Mouth stream 100 is tilted downward with outside is gone on the inside of Y-direction.On the inside of the Y-direction of filter washing water inlet stream 100 End, is configured with for the ingress port 104 to supply cleaning fluid in filter washing water inlet stream 100.

Interval is configured with multiple to distribution stream 101 in the Y direction.Each distribution stream 101 extends in X direction.Each point The end side of the X-direction of dispensing line 101 is connected to filter washing water inlet stream 100.In addition, respectively distributing stream 101 Can downward it be tilted with side is gone to from the opposite side of X-direction.

Waste liquid stream 102 has cover receiving portion 102a and interflow stream 102b.

Cover receiving portion 102a is formed between distribution stream 101 adjacent in the Y direction.Cover receiving portion 102a from Z side It is formed to accommodate the size of head-shield mechanism 75 to the plan view profile seen.In addition, cover receiving portion 102a can also be with Side is gone to from the opposite side of X-direction and is tilted downward.

Interflow stream 102b will connect relative to each cover receiving portion 102a in the side of X-direction between each cover receiving portion 102a Connect.At interflow, stream 102b is configured with waste port 105, the cleaning fluid that waste port 105 will circulate in the stream 102b of interflow Discharge.

Rinse liquid outlet stream 103 extends among balladeur train cover 78 is interior on the side of X-direction along Y-direction.Rinse liquid outlet Distribution stream 101 is connected at the both ends of stream 103 at least in the Y direction (for example, the distribution stream positioned at Y-direction both ends 101).Rinse liquid outlet stream 103 is tilted downward with outside is gone on the inside of Y-direction.In rinse liquid outlet stream 103 Y-direction outboard end, is configured with the outlet port 106 for discharging cleaning fluid from rinse liquid outlet stream 103.Outlet Port 106 is provided projectingly upward from the bottom wall part of rinse liquid outlet stream 103.In this case, the discharge of outlet port 106 Mouth (outlet from rinse liquid outlet stream 103) is above compared with the bottom wall part of rinse liquid outlet stream 103.Outlet The outlet of port 106 can also balladeur train cover 78 surrounding wall portion upper shed.

In the example of fig. 6, between waste liquid stream 102 and filter washing water inlet stream 100, waste liquid stream 102 and distribution stream Separate between road 101 and by partition wall 107 between waste liquid stream 102 and rinse liquid outlet stream 103.In addition, in cleaning fluid Among stream 90, at least can also be configured with distribution stream 101 can absorb the absorber 108 of cleaning fluid.In the situation Under, cleaning fluid can be kept by absorber 108.Therefore, even if inclination of balladeur train cover 78 etc causes in cleaning fluid stream 90 Middle cleaning fluid bias, or the supply of cleaning fluid stop, and also can at least suppress in the exhausted feelings of the distribution cleaning liquid inside of stream 101 Condition.But, additionally it is possible in the configured in one piece absorber of cleaning fluid stream 90.

In addition, as shown in figure 4, among above-mentioned cleaning fluid stream 90, the part beyond cover receiving portion 102a is in balladeur train Plate 89 is closed from top.

Fig. 7 is to show that cover unit 66 is in the ink gun in terms of X-direction 5, balladeur train 21 and cover list of the state of release position The summary pie graph of member 66.

In above-mentioned release position, the upper edge of the surrounding wall portion of balladeur train cover 78 and the lower surface of balladeur train 21 and ink gun 5 Spit face compare be located at lower section.Thus, the interference of balladeur train cover 78 and balladeur train 21 and ink gun 5 is prevented.

Fig. 8 is to show that cover unit 66 is in the ink gun in terms of X-direction 5, balladeur train 21 and cover of the state of balladeur train cover position The summary pie graph of unit 66.

As shown in figure 8, balladeur train cover 78 covers balladeur train 21 from below in above-mentioned balladeur train cover position, and surround balladeur train 21 Around.Thus, the nozzle bore 31,32 of all ink guns 5 is covered.

Fig. 9 is to show that cover unit 66 is in the ink gun in terms of X-direction 5, balladeur train 21 and cover list of the state of head-shield position The summary pie graph of member 66.

As shown in figure 9, balladeur train cover 78 is above compared with balladeur train cover position in above-mentioned head-shield position.

As shown in figure 4, head-shield mechanism 75 is used in the cleaning of the spit face of ink gun 5 etc..Head-shield mechanism 75 is set respectively Put among the bottom wall part of balladeur train cover 78 in cover initial position with above-mentioned each ink gun 5 opposite position in z-direction.As schemed Shown in 9, head-shield mechanism 75 is connected to the spit face of ink gun 5 from below when in above-mentioned head-shield position.Further, since each Head-shield mechanism 75 is all that identical is constituted, therefore head-shield mechanism 75 is illustrated in the following description.

Figure 10 is the stereogram of head-shield mechanism 75.

As shown in Figure 10, head-shield mechanism 75 has the first abutting unit 91, the second abutting unit 92 and keeper 93.

Keeper 93 is fixed on the part of zoning cover receiving portion 102a among above-mentioned partition wall 107.Keeper 93 makes respectively Abutting unit 91,92 is kept in the state of being spaced upward from the bottom wall part of waste liquid stream 102.

First abutting unit 91 has pushing and pressing part 94A and head piece 96A.

Pushing and pressing part 94A is arranged by multiple pushing and pressing part 97A, 98A, 99A and constituted along Y-direction.Pushing and pressing part 97A~99A is Central pushing and pressing part 97A, relative to central pushing and pressing part 97A configurations in the Y direction outside the first outside pushing and pressing part 98A and second of both sides Side pushing and pressing part 99A.

Central pushing and pressing part 97A is the spongy porous part of tool (spongy) formed by Foamex.Center Pushing and pressing part 97A be formed as using X-direction as longer direction rectangular shape.Width ratio in central pushing and pressing part 97A Y-direction Narrow width in the Y-direction of first exposed hole 58 (reference picture 3).As shown in Fig. 3, Fig. 9, central pushing and pressing part 97A upper surface exists It is opposite in z-direction with first jet row 56 among the spit face of ink gun 5 when head-shield mechanism 75 is in head-shield position.

As shown in Figure 10, the first outside pushing and pressing part 98A and the second outside pushing and pressing part 99A are formed by Foamex Has spongy porous part (spongy).First outside pushing and pressing part 98A and the second outside pushing and pressing part 99A Z-direction Height it is lower than central pushing and pressing part 97A.Thus, the first outside pushing and pressing part 98A and the second outside pushing and pressing part 99A upper surface with Central pushing and pressing part 97A upper surface, which is compared, is located at lower section.As shown in Fig. 3, Fig. 9, the outsides of the first outside pushing and pressing part 98A and second Pushing and pressing part 99A is when in head-shield position, the part with being located at Y-direction both sides among spit face relative to first jet row 56 (nozzle guard part 37) is opposite in z-direction.In addition, in Figure 10 example, each pushing and pressing part 97A~99A Y-direction width with First outside pushing and pressing part 98A, center pushing and pressing part 97A and the second outside pushing and pressing part 99A order narrow.

In the present embodiment, central pushing and pressing part 97A and the first outside pushing and pressing part 98A and the second outside pushing and pressing part 99A Compare, formed by the material according to Shore A hardness hard.Specifically, the first outside pushing and pressing part 98A is by Lian Pao (multiple bubbles The composition communicated with each other) Foamex formed.On the other hand, central pushing and pressing part 97A and the second outside pushing and pressing part 99A are by list The Foamex of bubble (multiple bubbles are independent of each other to be constituted) is formed.But, among each pushing and pressing part 97A~99A, center pushing and pressing Block 97A and the second outside pushing and pressing part 99A is formed by bubble also may be used.Moreover, pushing and pressing part 97A~99A can be single bubble respectively Foamex or the even Foamex of bubble.Because cleaning fluid can be maintained in pushing and pressing part 97A~99A Portion, and a piece 96A drying can be suppressed.

If in addition, pushing and pressing part 94A is at least formed by the material for being capable of elastic deformation, can also not have water imbibition. If pushing and pressing part 94A is formed as copying the concave surface and nozzle guard part 37 that nozzle plate 35 exposes among spit face expose convex The concaveconvex shape in face, then can not also be divided into multiple pushing and pressing part 97A~99A.

Head piece 96A is spongy of the tool by formation such as non-woven fabrics, fabrics.Head piece 96A will push against part 94A The top of (each pushing and pressing part 97A~99A) and the both sides of Y-direction are together covered.It is located among head piece 96A on pushing and pressing part 94A The part of side is connected to the spit face of ink gun 5 from below when head-shield mechanism 75 is in head-shield position.

As shown in Fig. 6, Figure 10, head piece 96A first end (outside (that is, one stood facing each other with abutting unit 91 of Y-direction Side) end) it is impregnated in cleaning fluid in above-mentioned distribution stream 101.On the other hand, head piece 96A the second end (Y-direction Inner side (that is, the side stood facing each other with abutting unit 92) end) it is spaced with waste liquid stream 102.In addition, head piece 96A unit plane Product quality (weight (g) of per unit area (m2)) is preferably such as more than 70g/m2.Thus, head piece 96A percent opening is (per single The area of the opening portion of plane product) upper end surface than each pushing and pressing part 97A~99A percent opening it is small.

As shown in Figure 10, the second abutting unit 92 is arranged in the Y direction relative to the first abutting unit 91.Following Explanation in, on composition same with the first abutting unit 91 in the second abutting unit 92, sometimes pair with the first abutting unit 91 identical symbols are accompanied by " B " and omitted the description.

Second abutting unit 92 has pushing and pressing part 94B and head piece 96B in the same manner as the first abutting unit 91.

As shown in Fig. 3, Fig. 9, the central pushing and pressing part 97B of the second abutting unit 92 is in head-shield position in head-shield mechanism 75 When, it is opposite in z-direction with second nozzle row 57 among the spit face of ink gun 5.

Each outside pushing and pressing part 98B, 99B when in head-shield position, respectively among spit face relative to second nozzle The part (nozzle guard part 37) that row 57 are located at Y-direction both sides is opposite.

Head piece 96B is together covered part 94B (each pushing and pressing part 97B~99B) top and the both sides of Y-direction are pushed against. It is located at the part above pushing and pressing part 94B among head piece 96B when head-shield mechanism 75 is in head-shield position, spray is connected to from below The spit face of ink first 5.Head piece 96B first end (outboard end of Y-direction) is impregnated in cleaning in above-mentioned distribution stream 101 Liquid.On the other hand, head piece 96B the second end (medial end of Y-direction) is spaced with waste liquid stream 102.Further, it is also possible to Set between the first abutting unit 91 and the second abutting unit 92 points between first abutting unit 91 and the second abutting unit 92 Every lattice.

As shown in figure 4, squeegee unit 67 is configured in the side of X-direction relative to unit framework 65.Squeegee unit 67 is clear Clean unit 61 is moved to from opposite position avoid position during whisk off the spit face of each ink gun 5.

Figure 11 is the sectional view of the squeegee unit 67 suitable with Fig. 4 XI-XI lines.

Squeegee unit 67 possesses the screed frame 110 of box.Positioned at the another of X-direction opposite side among screed frame 110 Side side of sidewall portion is provided with scraper plate pond.Scraper plate pond 111 is formed as the box being up open.In scraper plate pond 111, be reserving with from The cleaning fluid that above-mentioned cleaning solution supplying mechanism 62 is supplied.The end side of the X-direction in scraper plate pond 111 is fixed on said units frame It is located at the second sidewall portion 65b of X-direction side among frame 65.Thus, screed frame 110 is relative to unit framework 65 in the Y direction On configure at spaced intervals.In addition, being provided with the (ginseng of floating sensing device 116 of the liquid level of detection cleaning fluid in scraper plate pond 111 According to Figure 12).

As shown in figure 4, side of sidewall portion opposite in the Y direction among screed frame 110 installs the opposite side of oriented X-direction The pillar (stay) of extension.Between each pillar 112, setting up has the support shaft 113 extended along Y-direction.Support shaft 113 is with can The mode rotated around Y-direction is supported by pillar 112.In support shaft 113, provided with scraping plate mechanism 115.Scraping plate mechanism 115 and ink-jet First 5 accordingly in the Y direction interval be provided with four.In the following description, to one among multiple scraping plate mechanisms 115 Scraping plate mechanism 115 is illustrated.

As shown in figure 11, scraping plate mechanism 115 possesses scraper plate keeper 120, the first scraper plate 121 and the second scraper plate 122.

Scraper plate keeper 120 is installed on support shaft 113 in the state of being protruded upward relative to support shaft 113.

First scraper plate 121 is formed by the material (rubber, resin etc.) with pliability.First scraper plate 121 is formed as tabular. First scraper plate 121 is fixed on scraper plate keeper 120 in the way of extending along Z-direction.The top ends (upper end) of first scraper plate 121 Protrude, and configure in the height that can be slipped with the spit face of ink gun 5 upward compared with scraper plate keeper 120.

Second scraper plate 122 is formed by the material (rubber, resin etc.) with pliability.Second scraper plate 122 is formed as tabular. Second scraper plate 122 is fixed on scraper plate keeper 120 in the way of extending upward with the side for going to X-direction.Second scrapes The top ends of plate 122 can also be configured in the height that can be slipped with the spit face of ink gun 5.In Figure 11 example, second The top ends of scraper plate 122 are located at lower section compared with the top ends of the first scraper plate 121.The top ends of second scraper plate 122 can be with The deflection deformation of each scraper plate 121,122 and relative to the first scraper plate 121 top ends separate.

The space surrounded among scraping plate mechanism 115 by scraper plate keeper 120 and each scraper plate 121,122 constitutes the first attraction Room 125.In addition, each scraper plate 121,122 can be formed by mutual identical material, it can also be formed by not same material.Although In the present embodiment, the feelings by scraper plate keeper 120 and the first suction chamber 125 of formation of each scraper plate 121,122 are illustrated Condition, it is also possible to limit the first suction chamber 125 using the multi-disc scraper plate of more than three.

Scraping plate mechanism 115 can with the rotation of support shaft 113 dipping position (interval location) and whisk off position it Between move.At dipping position, at least top ends of each scraper plate 121,122 of scraping plate mechanism 115 are impregnated in scraper plate pond 111 Detergent remover (reference picture 14).On the other hand, in position is whisked off, the top ends of at least the first scraper plate 121 of scraping plate mechanism 115 are matched somebody with somebody Put in the height that can be slipped with the spit face of ink gun 5.

In scraper plate keeper 120, the first intercommunicating pore 126 of the inside and outside connection for making the first suction chamber 125 is formed with.First connects Through hole 126 runs through scraper plate keeper 120 in X direction.Connecting tube 127 is connected to the first intercommunicating pore 126.Connecting tube 127 is from scraper plate Keeper 120 is provided projectingly towards the side of X-direction.In addition, the first intercommunicating pore 126 can regard Y-direction as one of major axis Elongated hole, can also by multiple through holes in the Y direction interval and constitute.

Here, the inner space of screed frame 110 constitutes the second suction chamber 132.Second suction chamber 132 can be by scraping Plate framework 110 opposite side side of sidewall portion formation the second intercommunicating pore 130 and above-mentioned connecting tube 127 and be communicated in the first attraction In room 125.Above-mentioned connecting tube 127 can be connected to scraper plate keeper 120 (the first intercommunicating pore 126), can also be connected to scraper plate Framework 110 (the second intercommunicating pore 130).

It is located at the side side of sidewall portion of X-direction side among screed frame 110, being formed with makes the inside and outside of screed frame 110 The suction hole 133 of connection.Suction hole 133 the top of side side of sidewall portion in the Y direction interval be formed with it is multiple.In scraper plate The side side of sidewall portion of framework 110, is provided with multiple pressure fan 135 that each suction hole 133 is covered each by from the side of X-direction.Respectively Pressure fan 135 is communicated in the second suction chamber 132 by each suction hole 133.In addition, in the upper wall portions of screed frame 110, if There is the hampering plate 136 that will separate in the X direction between the intercommunicating pore 130 of suction hole 133 and second.In addition, in the second suction chamber 132 It is interior, can also be in the spongy absorber (not shown) of underlying part configuration tool compared with hampering plate 136.

Figure 12 is the summary pie graph of cleaning solution supplying mechanism 62.

As shown in figure 12, cleaning solution supplying mechanism 62 by the cleaning solution supplying being held in cleaning liquid storage tank 63 to cleaning fluid Stream 90 and scraper plate pond 111.Specifically, cleaning solution supplying mechanism 62 possesses supply pipe 141, connecting tube 142, the first waste liquid The cleaning liquid pump 145 of the sewer pipe 144 of pipe 143 and second and configuration in supply pipe 141.

Supply pipe 141 by clean liquid storage tank 63 and cleaning fluid stream 90 filter washing water inlet stream 100 (reference picture 6) it Between connect.Specifically, the first end of supply pipe 141 is connected to cleaning liquid storage tank 63.The second end connection of supply pipe 141 In above-mentioned ingress port 104.

Liquid pump 145 is cleaned to being pressurizeed in supply pipe 141, to send out cleaning fluid towards cleaning fluid stream 90 by supply pipe 141.

Connecting tube 142 will be connected between the rinse liquid outlet stream 103 of cleaning fluid stream 90 and scraper plate pond 111.It is specific and Speech, the first end of connecting tube 142 is connected to the outlet port 106 of rinse liquid outlet stream 103.Second end of connecting tube 142 Portion is connected to located at the pond port 148 in scraper plate pond 111.

First sewer pipe 143 will be connected between the waste liquid stream 102 and waste tank 150 of cleaning fluid stream 90.It is specific and Speech, the first end of the first sewer pipe 143 is connected to the waste port 105 of the waste liquid stream 102 shown in Fig. 6.First sewer pipe 143 the second end is connected to waste tank 150.In addition, being provided with open and close valve 151 on the first sewer pipe 143.In addition, also may be used To be not provided with open and close valve 151.

Second sewer pipe 144 will be connected between scraper plate pond 111 and waste tank 150.Specifically, the second sewer pipe 144 First end be connected to waste port (not shown) located at scraper plate pond 111.The second end of second sewer pipe 144 is connected to Waste tank 150.In addition, being provided with open and close valve 152 on the second sewer pipe 144.

[method of work of printer]

Then, the method for work of above-mentioned printer 1 is illustrated.In the following description, character printing method, the side of whisking off are being illustrated successively After method, balladeur train cover method and head-shield method, cleaning solution supplying method, the lettering method of awaiting orders is illustrated.

First, the character printing method to printing medium P is illustrated.

If as shown in figure 1, operating printer 1, the grid roller 11 of conveyer 2 rotates, so that in these grid rollers Printing medium P is transported between 11 and pinch roll 12 in X direction.In addition, at the same time, drive motor 26 rotates pulley 24 So that endless belt 25 is moved.Thus, the one side of balladeur train 21 by the edge Y-direction of rail guidance one (not shown) in the S of lettering region Move back and forth.

During this period, as shown in figure 3, in each ink gun 5, the driving electrodes of correct chip 33,34 apply driving voltage. Thus, driving wall 45 is made to produce thickness sliding deformation, to produce pressure wave in the ink being filled in discharge passage 43. By the pressure wave, the internal pressure of discharge passage 43 is uprised, to pass through nozzle bore 31,32 discharge inks.Then, hit by ink In on printing medium P and by various information records on printing medium P.

Then, the method for whisking off to the spit face based on squeegee unit 67 is illustrated.In the following description, from cover unit 66 In cover initial position, squeegee unit 67 is at the time of whisking off position and proceeds by explanation.In addition, in cover initial position, Cover unit 66 is kept in release position.

First, move the endless belt 25 shown in Fig. 1, so that balladeur train 21 is moved to cleaning region C.Now, such as Fig. 7 institutes Show, make balladeur train 21 from the medial movement of Y-direction to the position (whisking off position of readiness) abutted with stop wall portion 81.Thus, such as Fig. 4 It is shown, each ink gun 5 configure with corresponding scraping plate mechanism 115 equal position in the Y direction respectively, and with corresponding head Cover mechanism 75 is opposite in z-direction respectively.

Figure 13 is the action specification figure for illustrating to whisk off method.

Then, as shown in figure 13, drive pressure fan 135.Then, attracted by suction hole 133 in the second suction chamber 132 Air, also, by the second intercommunicating pore 130, the intercommunicating pore 126 of connecting tube 127 and first attract the first suction chamber 125 in Air.Thus, negative pressure will be remained in the first suction chamber 125 and in the second suction chamber 132.

Afterwards, it is moved to cleaning unit 61 and avoids position.Then, when scraping plate mechanism 115 is by ink gun 5, at least First scraper plate 121 slips in the spit face of ink gun 5.Thus, the spit face of ink gun 5 is whisked off.

During scraping plate mechanism 115 slips in the spit face of ink gun 5, scraper plate 121,122 deflection deformations, so that The top ends of scraper plate 121,122 are spaced.Thus, the inside and outside top ends by scraper plate 121,122 of the first suction chamber 125 that This gap and connect.Now, due to being retained as negative pressure in the first suction chamber 125, therefore scraper plate 121,122, discharge are attached to The ink in face is attracted in the first suction chamber 125 each other by the top ends of scraper plate 121,122.It is attracted to the first attraction Ink in room 125 is flowed into the second suction chamber 132 by connecting tube 127.Thereby, it is possible to being cleaned in spit face, energy It is enough to remove the ink for being attached to spit face.

Figure 14, Figure 15 are the action specification figures for illustrating to whisk off method.

As shown in Figure 14, Figure 15, at the time of position is avoided in the arrival of cleaning unit 61, the driving of out-of-blast machine 135.Connect , scraping plate mechanism 115 is moved to dipping position by rotating support shaft 113.Then, the top ends of scraper plate 121,122 It is impregnated in the cleaning fluid in scraper plate pond 111.Thereby, it is possible to cleaning scraper 121,122, scraper plate 121,122 is attached to remove Ink.

Afterwards, complete to whisk off method based on squeegee unit 67 by making cleaning unit 61 return opposite position.In addition, Balladeur train 21 can also be made to return lettering region S before cleaning unit 61 is returned opposite position.

Then, the balladeur train cover method based on balladeur train cover mechanism 73 is illustrated.In the following description, it is in cleaning region from balladeur train 21 C's whisks off position of readiness, and cover unit 66 is proceeded by the time of being in cover initial position (cover unit 66 is in release position) It is bright.

First, as shown in fig. 7, making balladeur train 21 be moved from position of readiness is whisked off to the outside of Y-direction.Then, cover unit 66 Pushed by balladeur train 21 via the outside (direction of the active force of resistance force application part 85) of stop wall portion 81 towards Y-direction.Thus, with The movement gone on the outside of Y-direction of balladeur train 21, cover unit 66 and movement on the outside of the Y-direction in the same direction of balladeur train 21 1.

Figure 16 is the action specification figure for illustrating balladeur train cover method.

As shown in figure 16, during the outside in cover unit 66 from release position towards Y-direction is moved, supporting pin 79 is in list To movement on the outside of Y-direction in first guiding piece 71.Specifically, among supporting pin 79 is in unit guiding piece 71, from subordinate portion 71a Middle rank portion 71c is reached by first connecting portion 71b.Supporting pin 79 be in first connecting portion 71b it is mobile during with going It is moved upward on the outside of toward Y-direction.Thus, cover unit 66 is moved upward with the outside for going to Y-direction.Then, exist At the time of supporting pin 79 reaches intermediate portion 71c, cover unit 66 reaches above-mentioned balladeur train cover position.As shown in figure 8, in balladeur train cover position In, balladeur train cover 78 covers balladeur train 21 from below, to cover the nozzle bore 31,32 of whole ink guns 5 from below.Thus, spray is suppressed The drying of ink in nozzle aperture 31,32, to maintain the moisture state of ink.In addition, in balladeur train cover position, above-mentioned head piece 96A, 96B is not connected to spit face.

In addition, in order that cover unit 66 is moved to release position from balladeur train cover position, making inner side of the balladeur train 21 to Y-direction (whisking off position of readiness) is mobile.Then, cover unit 66, by using active force and the Y side in the same direction of balladeur train 21 1 of force application part 85 Move inward, so as to be moved downwards with the inner side for going to Y-direction.Thus, as shown in fig. 7, cover unit 66 is moved to Release position.

<Head-shield method>

Then, the head-shield method based on head-shield mechanism 75 is illustrated.In the following description, it is in and slides from cover unit 66 (balladeur train 21) Explanation is proceeded by the time of frame cover position.

First, as shown in figure 8, making balladeur train 21 be moved to the outside of Y-direction.Then, cover unit 66 by balladeur train 21 via only The outside (direction of the active force of resistance force application part 85) of dynamic wall portion 81 towards Y-direction is pushed.Thus, going to balladeur train 21 Movement on the outside of Y-direction, cover unit 66 and movement on the outside of the Y-direction in the same direction of balladeur train 21 1.

Figure 17 is the action specification figure for illustrating head-shield method.

As shown in figure 17, during the outside in cover unit 66 from balladeur train cover position towards Y-direction is moved, supporting pin 79 exists To movement on the outside of Y-direction in unit guiding piece 71.Specifically, among supporting pin 79 is in unit guiding piece 71, from intermediate portion 71c reaches higher level portion 71e by second connecting portion 71d.Supporting pin 79 be in second connecting portion 71d it is mobile during with Go on the outside of Y-direction and be moved upward.Thus, cover unit 66 is moved upward with the outside for going to Y-direction.Then, At the time of supporting pin 79 reaches higher level portion 71e, cover unit 66 reaches above-mentioned head-shield position.

As shown in figure 9, in head-shield position, each head-shield mechanism 75 is connected to the spit face of each ink gun 5 from below.Specifically For, among each head-shield mechanism 75, the pushing and pressing part 94A of the first abutting unit 91 is connected to spray between across head piece 96A The spit face of ink first 5.Now, central pushing and pressing part 97A is connected to first jet row 56 (nozzle plate 35) by the first exposed hole 58. On the other hand, each outside pushing and pressing part 98A, 99A are connected to the lower surface of nozzle guard part 37.

In addition, among each head-shield mechanism 75, the pushing and pressing part 94B of the second abutting unit 92 is between across head piece 96B It is connected to the spit face of ink gun 5.Now, central pushing and pressing part 97B is connected to the (spray of second nozzle row 57 by the second exposed hole 59 Mouth plate 35).On the other hand, each outside pushing and pressing part 98B, 99B are connected to the lower surface of nozzle guard part 37.

In head-shield position, the ink adhered in spit face by be infiltrated in piece 96A, 96B a cleaning fluid and by After dissolving, the head of a quilt piece 96A, 96B absorb.Thereby, it is possible to being cleaned in spit face.In addition, abutting unit 91,92 is in head Cover can also close (occlusion) nozzle bore 31,32 in position.

Here, as shown in Fig. 6, Figure 10, head piece 96A, 96B first end are impregnated in clearly in above-mentioned distribution stream 101 Washing lotion.Therefore, the cleaning fluid in distribution stream 101 is infiltrated in piece 96A, 96B by capillarity etc. from first end It is interior.Piece 96A, 96B a cleaning fluid is infiltrated in permeate from first end towards the second end.In addition, reaching piece 96A, 96B to the end A part for the cleaning fluid of the second end flows to the cover receiving portion 102a of waste liquid stream 102.As shown in fig. 6, flowing to cover receiving portion Cleaning fluid in 102a is to flow to after the side of X-direction in cover receiving portion 102a, and waste liquid is flowed into by collaborating stream 102b In port 105.The cleaning fluid flowed into waste port 105 is discharged to waste liquid by the first sewer pipe 143 shown in Figure 12 Storage tank 150.

As shown in Figure 7, Figure 8, in order that cover unit 66 is moved to release position from head-shield position, balladeur train 21 is made to Y-direction Inner side (whisking off position of readiness) it is mobile.Then, cover unit 66, by using force application part 85 active force and balladeur train 21 together To Y-direction medial movement, so as to be moved downwards with the inner side for going to Y-direction.Thus, cover unit 66 is moved to open stance Put.

Then, the supply method of the cleaning fluid to cleaning fluid stream 90, scraper plate pond 111 is illustrated.

First, as shown in figure 12, by being driven cleaning liquid pump 145, it is held in the cleaning in cleaning liquid storage tank 63 Liquid circulates in supply pipe 141.The cleaning fluid of circulation is supplied by ingress port 104 as illustrated in fig. 6 in supply pipe 141 It is given to filter washing water inlet stream 100.The cleaning fluid being fed into filter washing water inlet stream 100 is filter washing water inlet stream Distribution stream 101 is assigned to during being flowed in 100 towards Y-direction outside.In addition, what is flowed in distribution stream 101 is clear A part for washing lotion is permeated in head piece 96A, 96B as described above, for cleaning spit face.

On the other hand, the cleaning fluid for having passed through distribution stream 101 flows into rinse liquid outlet stream 103.Cleaning fluid is flowed into The cleaning fluid of outlet flow passage 103 flows in rinse liquid outlet stream 103 towards the inner side of Y-direction.If moreover, in rinse liquid outlet The liquid level of the cleaning fluid flowed in stream 103 becomes higher than the outlet of outlet port 106, then wash liquid stream inlet/outlet port In 106.The cleaning fluid in outlet port 106 has been flowed into by the liquid level of the cleaning fluid in rinse liquid outlet stream 103 with scraping The head value of the liquid level of cleaning fluid in plate pond 111 and flowed towards scraper plate pond 111 in the connecting tube 142.Then, in connecting tube The cleaning fluid of flowing is supplied in scraper plate pond 111 by pond port 148 in 142.It is supplied to the cleaning fluid in scraper plate pond 111 as above institute Supply cleaning scraper 121,122 with stating.

As shown in figure 12, the action of above-mentioned cleaning liquid pump 145 can be based on the floating sensing device set in scraper plate pond 111 116 testing result (liquid level in scraper plate pond 111) is controlled.Specifically, the liquid level in scraper plate pond 111 is first determined whether Whether it is more than set value.Then, less than set value, (for example scraper plate 121,122 does not impregnate that to the liquid level in scraper plate pond 111 The liquid level of sample) in the case of, cleaning liquid pump 145 is driven.On the other hand, the liquid level in scraper plate pond 111 is both In the case of more than definite value, stop the driving of cleaning liquid pump 145.Thereby, it is possible to cleaning fluid stream 90 and scraper plate pond 111 just Really supply cleaning fluid.

In addition, as shown in figure 12, by suitably opening the open and close valve 151 located at the first sewer pipe 143, by waste liquid stream Cleaning fluid in 102 is discharged to waste tank 150.In addition, by being suitably turned off the open and close valve located at the second sewer pipe 144 152, the cleaning fluid for being fed into scraper plate pond 111 is discharged to waste tank 150.

Then, the action of awaiting orders before the disgorging motion of ink gun 5 is started is illustrated.Figure 18 is to be used to illustrate that lettering is treated The flow chart of life method.In the following description, cover initial position is in from cover unit 66, squeegee unit 67 is in and whisks off standby Position, scraping plate mechanism 115 proceeds by explanation at the time of being in dipping position.In addition, under the non-discharge state of ink gun 5, Ink in nozzle bore 31,32 is formed with appropriate (recessed by surface tension of effect etc. at the inner surface of nozzle bore 31,32 Planar) meniscus.That is, in ink gun 5, by the way that the pressure in discharge passage 43 is remained into desired negative pressure (for example, curved Levels pressure Pa), above-mentioned meniscus is maintained, from without discharge ink.On the other hand, by making the pressure in discharge passage 43 Power is desired barotropic state, and meniscus is destroyed, from nozzle bore 31,32 discharge inks.

As shown in figure 18, in step S01, by the method same with above-mentioned cleaning solution supplying method, to wash liquid stream Road 90 and the supply of scraper plate pond 111 cleaning fluid.Specifically, the cleaning fluid in cleaning liquid storage tank 63 is fed into cleaning fluid stream 90 distribution stream 101, and it is supplied to scraper plate pond 111 by distribution stream 101 afterwards.

In step S02, based on the testing result for the floating sensing device 116 for being arranged at scraper plate pond 111, scraper plate pond is judged Whether 111 liquid level is more than set value.

In the case of being "No" in step S02 judged result (liquid level is less than set value), it is judged as not yet to dividing Cleaning fluid is fully supplied in dispensing line 101 and scraper plate pond 111.In this case, step S01 is back to, continues cleaning fluid Supply.

In the case of being "Yes" in step S02 judged result (liquid level is more than set value), it is judged as to distribution Cleaning fluid has fully been supplied in stream 101 and scraper plate pond 111.In this case, step S03 is advanced to.

In step S03, stop the driving of cleaning liquid pump 145.

Then, in step S04, scraping plate mechanism 115 is moved to from dipping position and whisk off position.

In step S05, the purging of ink gun 5 is carried out.Purging is to make the operation before discharge performance recovery to lettering.Tool For body, by the way that to being pressurizeed in discharge passage 43, the pressure (for example, purging pressure Pb) in discharge passage 43 is remained Meniscus is destroyed, and the degree that ink is spilt from nozzle bore 31,32.That is, set in the mode bigger than meniscus pressure Pa Purge pressure Pb (Pb ＞ Pa).Thus, into the dust in nozzle bore 31,32, bubble, because drying and ink of viscosity rising etc. Discharged from nozzle bore 31,32.In addition, from nozzle bore 31,32 discharge ink by by the head piece 96A of head-shield mechanism 75,96B, Push against part 94A, 94B to absorb, and be discharged to cover receiving portion 102a.

After above-mentioned purging to have been carried out to given time, step S06 is proceeded to.

Then, in step S06, the pressure in discharge passage 43 is set as standby pressure Pc.Standby pressure Pc refers to Ink is bloated from nozzle bore 31,32 convexs, and the pressure for the degree not spilt from nozzle bore 31,32.That is, with than meniscus pressure Power Pa is big, and the mode smaller than purging pressure Pb sets standby pressure Pc.Treated further, it is also possible to comparably be set with atmospheric pressure Machine pressure Pc.

In step S07, be moved to scraping plate mechanism 115 and whisk off position, by with the above-mentioned method that to whisk off method same, Whisk off the spit face of ink gun 5.Specifically, drive pressure fan 135 and be moved to cleaning unit 61 to avoid position.By This, can whisk off and be attached to scraper plate 121,122, the ink of spit face, and whisk off telling for ink gun 5 by scraper plate 121,122 Appear.In addition, in step S07, the pressure in discharge passage 43 is also retained as standby pressure Pc.Therefore, based on scraper plate After the whisking off of mechanism 115, ink is maintained in the state of the bulging of nozzle bore 31,32 again.

In step S08, scraping plate mechanism 115 is set to be moved again to dipping position.

In step S09, cleaning unit 61 is set to be moved to opposite position.

In step slo, cover unit 66 is made to be moved to balladeur train cover position by the method same with above-mentioned balladeur train cover method. Specifically, moved by making balladeur train 21 from position of readiness is whisked off to the outside of Y-direction, the cover unit 66 and Y in the same direction of balladeur train 21 1 Move and be moved upward in the outside in direction.Thus, balladeur train cover 78 covers balladeur train 21 from below, to cover whole ink-jets from below First 5 nozzle bore 31,32.

In step s 11, given time (for example, 60 seconds or so) is kept at balladeur train cover position.In addition, now can be with Splash (spitting) (the forcibly action of discharge ink) is carried out, tactile (tickling) is scratched and (is made with the degree for the ink that do not spue The action for driving wall 45 to deform).

Afterwards, in step s 12, the pressure in discharge passage 43 is recovered to meniscus pressure Pa.

By the above, formal proceedings terminate.Further, it is also possible to which the pressure in by discharge passage 43 is maintained standby pressure Terminate formal proceedings in the state of Pc.

In this way, in the present embodiment, at head-shield position, by using be capable of elastic deformation pushing and pressing part 94A, 94B pushes against head piece 96A, 96B in spit face, and pushing and pressing part 94A, 94B copy fluctuating of spit face etc. and flexibly deformed.By This, can throughout spit face entirety equably ejection head piece 96A, 96B.Especially, due to head piece 96A, 96B with for example by sending out Pushing and pressing part 94A, the 94B for steeping the formation such as resin are small compared to percent opening, therefore can increase the contact of piece 96A, 96B with spit face Area.Thereby, it is possible to effectively remove the ink etc. for being attached to spit face.

In the present embodiment, using among head piece 96A, 96B, first end is impregnated in the distribution stream for storing cleaning fluid In road 101, the composition that the second end is spaced with distribution stream 101.

According to this composition, it is reserving at the distribution cleaning fluid of stream 101 and is infiltrated in by capillarity etc. from first end In head piece 96A, 96B.Piece 96A, 96B a cleaning fluid is infiltrated in uniaxially to permeate from first end towards the second end.Thus, energy It is enough to be discharged using head piece 96A, 96B for the cleaning fluid of the cleaning of spit face from the second end.Moreover, can be from first end Fresh cleaning fluid is continuously fed, piece 96A, 96B a drying can be suppressed.

In the present embodiment, because pushing and pressing part 97A~99A, 97B~99B is formed by Foamex, therefore it can utilize and push away Supports block 97A~99A, 97B~99B keeps cleaning fluid, can suppress a piece 96A, 96B, pushing and pressing part 94A, 94B drying.It is special Not, because first outside pushing and pressing part 98A, 98B is formed by the Foamex even steeped, thus with second outside pushing and pressing part 99A, 99B Compare, more cleaning fluid can be kept.Moreover, being oozed at leisure using first outside pushing and pressing part 98A, 98B cleaning fluids kept Thoroughly to second outside pushing and pressing part 99A, the 99B formed by single bubble.Thus, easily will for the cleaning of spit face cleaning fluid from the beginning piece 96A, 96B the second end discharge.Moreover, fresh cleaning fluid can be continuously fed from first end, a piece can be suppressed 96A, 96B drying.

In the present embodiment, using central pushing and pressing part 97A, 97B compared with outside pushing and pressing part 98A, 98B, 99A, 99B to The composition that top is protruded.

According to this composition, head piece 96A, 96B can be reliably pushed against in nozzle rows by central pushing and pressing part 97A, 97B 56、57.Thereby, it is possible to reliably remove ink being attached to around nozzle bore 31,32 etc..

In the present embodiment, central pushing and pressing part 97A, 97B and outside are divided into using pushing and pressing part 94A, 94B respectively Pushing and pressing part 98A, 98B, 99A, 99B composition.

Component this composition, pushing and pressing part 94A, 94B central pushing and pressing part 97A, 97B and outside pushing and pressing part 98A, 98B, 99A, 99B copy fluctuating of spit face etc. flexibly to deform.Thereby, it is possible to throughout the entirety of spit face equably ejection head piece 96A、96B。

In the present embodiment, using among pushing and pressing part 94A, 94B, central pushing and pressing part 97A, 97B are at least with first Outside pushing and pressing part 98A, 98B are in a ratio of the composition of hard.

, can be by pushing against part 94A, 94B central pushing and pressing part 97A, 97B by head piece 96A, 96B according to this composition Reliably push against in nozzle rows 56,57.Thereby, it is possible to reliably remove ink being attached to around nozzle bore 31,32 etc..

In the present embodiment, due to possessing above-mentioned cleaning device 6, therefore can provide can maintain discharge performance for a long time , the high printer 1 of reliability.

The technical scope of the present invention is not limited to above-mentioned embodiment, can be without departing from the spirit and scope of the invention It is subject to various changes.

For example, in the above-described embodiment, as one of liquid injection apparatus, lifting progress exemplified by ink-jet printer 1 Illustrate, but be not limited to printer.For example, it is also possible to be facsimile machine, printing on demand machine etc..

In the above-described embodiment, although the ink gun for arranging nozzle bore 31,32 two row types of two row is said It is bright, but not limited to this.For example, it is also possible to use nozzle bore for the ink gun of the three row above, nozzle bore can also be used for a row Ink gun.

In the above-described embodiment, although lift exemplified by the ink gun 5 of type is penetrated on side and be illustrated, but be not limited to the structure Into.That is, ink gun 5, which can also be from the so-called side of the central portion discharge ink of the passage bearing of trend of discharge passage, penetrates type.

In the above-described embodiment, although linear composition is formed as along Z-direction to each passage 43,44 and said It is bright, but not limited to this, it can also extend along with the direction that Z-direction is intersected.

In the above-described embodiment, although the so-called balladeur train of carrying (in framework 7) is separated to ink storage tank 13 and balladeur train 21 The printer 1 of (off carriage) type is illustrated outside, but is not limited only to this composition.That is, it can be also used for storing up ink Tank is equipped on the printer of the so-called balladeur train mo(u)ld top half (on carriage) of balladeur train 21., can also be by addition, in balladeur train external form Sub- storage tank is equipped on balladeur train 21.

Further, it is also possible to which scraping plate mechanism 115 as shown in figure 19 is like that, the tip portion of the first scraper plate 121 is segmented into stroking Wipe the part of nozzle rows 56,57 and whisk off the part of nozzle guard part 37.According to this composition, even in the discharge of ink gun 5 In the case that face is male and fomale(M＆F), it can also make what scraping plate mechanism 115 was constituted uniformly in contact with the lower surface by nozzle guard part 37 Convex portion and the recess being made up of the lower surface of nozzle plate 35.It is overall thereby, it is possible to reliably whisk off spit face.

Furthermore it is also possible to be formed among the top ends of the second scraper plate 122 with nozzle rows 56,57 corresponding parts to The recess 200 of the direction depression at one scraper plate 121 interval.According to this composition, it can efficiently attract to be attached among spit face Nozzle rows 56, the ink on 57 peripheries, it is thus possible to suppress the reduction of the discharge performance caused by being attached to the ink of spit face.

In the above-described embodiment, although the composition for possessing balladeur train cover mechanism 73 and head-shield mechanism 75 to cover unit 66 is entered Go explanation, but be not limited to this composition, at least possess head-shield mechanism 75.For example, in the above-described embodiment, although to by Pushing and pressing part 94A, 94B of Foamex formation are illustrated, if but be capable of the part of elastic deformation, then can be any Part, such as can also the flexible material as rubber formed.

In addition, without departing from the scope of the subject in the invention, can be suitably by the inscape in above-mentioned embodiment Known inscape is replaced with, furthermore it is also possible to which above-mentioned each variation is combined as.

Symbol description

1 ink-jet printer (liquid injection apparatus)

5 ink guns (jet head liquid)

6 cleaning devices

31 first jet holes (spray-hole)

32 second nozzle holes (spray-hole)

56 first jets arrange (spray-hole row)

57 second nozzles arrange (spray-hole row)

94A, 94B push against part

96A, 96B pieces

97A, 97B center pushing and pressing part (pushing and pressing part, Part I)

The first outsides of 98A pushing and pressing part (the first pushing and pressing part, Part II)

The first outsides of 98B pushing and pressing part (the first pushing and pressing part, Part II)

The second outsides of 99A pushing and pressing part (the second pushing and pressing part, Part II)

The second outsides of 99B pushing and pressing part (the second pushing and pressing part, Part II)

Claims

1. a kind of cleaning device of jet head liquid, it is characterised in that possess：

Head piece, it is impregnated with cleaning fluid, and can be connected to the jet face of spray-hole opening among jet head liquid, and

It is capable of the pushing and pressing part of elastic deformation, it is configured in the side opposite with the jet face relative to the head piece, will The head piece is pushed against in the jet face.

2. the cleaning device of jet head liquid according to claim 1, it is characterised in that

The pushing and pressing part is formed by Foamex.

3. the cleaning device of jet head liquid according to claim 1 or 2, it is characterised in that

It is that the first end of a side end of the main scanning direction of the jet head liquid is immersed in and stored among the head piece In the cleaning fluid stream of cleaning fluid, be the main scanning direction of the jet head liquid end side the second end with it is described Cleaning fluid stream interval.

4. the cleaning device of jet head liquid according to claim 3, it is characterised in that

The pushing and pressing part possesses to be set being gone to from the first end of the head piece on the bearing of trend of the second end side by side The multiple pushing and pressing parts put.

5. the cleaning device of jet head liquid according to claim 4, it is characterised in that

Among the multiple pushing and pressing part, first near the first end of the head piece is located on the bearing of trend Pushing and pressing part is formed by the Foamex even steeped,

Among the multiple pushing and pressing part, second near the second end of the head piece is located on the bearing of trend Pushing and pressing part is formed by the Foamex of single bubble.

6. the cleaning device of the jet head liquid according to claim 1 or claim 2, it is characterised in that

Spray-hole interval arrangement on the sub-scanning direction that the main scanning direction with the jet head liquid intersects is more It is individual and constitute nozzle bore row,

Among the pushing and pressing part, opposite Part I is arranged relative to the beyond the Part I with the spray-hole Two parts are protruded towards the jet face.

7. the cleaning device of jet head liquid according to claim 6, it is characterised in that

The Part I of the pushing and pressing part and Part II segmentation are constituted.

8. the cleaning device of jet head liquid according to claim 7, it is characterised in that

Among the pushing and pressing part, the Part I is in a ratio of hard with the Part II.

9. a kind of liquid injection apparatus, it is characterised in that possess：

The jet head liquid that can be moved along main scanning direction and

Cleaning device described in claim 1 or claim 2.