CN107825850A - The manufacture method of ink gun, ink-jet recording apparatus and ink gun - Google Patents
The manufacture method of ink gun, ink-jet recording apparatus and ink gun Download PDFInfo
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- CN107825850A CN107825850A CN201710826343.7A CN201710826343A CN107825850A CN 107825850 A CN107825850 A CN 107825850A CN 201710826343 A CN201710826343 A CN 201710826343A CN 107825850 A CN107825850 A CN 107825850A
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- ink
- flow path
- common flow
- balancing gate
- gate pit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1626—Manufacturing processes etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/19—Ink jet characterised by ink handling for removing air bubbles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/195—Ink jet characterised by ink handling for monitoring ink quality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/10—Finger type piezoelectric elements
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Ink Jet (AREA)
Abstract
The problem of the present invention is that providing a kind of can realize minimizes and have the ink-jet for the stream that can be effectively discharged out bubble etc. first-class.The ink gun (100) of the present invention possesses the nozzle layer (11) formed with nozzle (11a), balancing gate pit's layer (12) formed with balancing gate pit (13A), and the ink gun (100) has：Multiple independent communication streams (18), it is formed at least one party towards the part of balancing gate pit's layer (12) and the part towards mouth layer (11) of balancing gate pit's layer (12) of nozzle layer (11), can be respectively from black with discharge in multiple balancing gate pits (13A)；Common flow path (19), it links with multiple independent communication streams (18)；Discharge duct (13B), it is connected with common flow path (19), the outer row for being capable of common flow path (19) to balancing gate pit's layer (12) is out of ink, common flow path (19) has the direction that direction ink is discharged and the restriction (19a) for making the area of section of stream narrow, the restriction (19a) are connected to discharge duct (13B).
Description
Technical field
The present invention relates to the manufacture method of ink gun, ink-jet recording apparatus and ink gun.
Background technology
Conventionally, there is known project the drop of ink from the multiple nozzles of ink gun possessed and form image in recording medium
Ink-jet recording apparatus.
In the ink gun of ink-jet recording apparatus is installed on, in the case of bubble, foreign matter near nozzle being present, worry
Projecting performance reduces, it is therefore desirable to the upkeep operation for removing these bubbles, foreign matter.Here, if the upkeep operation needs
Between, then that this is greatly lowered in productivity ratio be present.
A kind of it is thus known that following ink-jet recording apparatus：By setting and can make near nozzle in the head chip of ink gun
Ink circulation stream, so as to by bubble near nozzle etc. with ink together with remove.
For example, Patent Document 1 discloses a kind of following ink gun, possess：Balancing gate pit, it is to projecting from nozzle
Ink is stored；Stream (high impedance channel) is connected, it is linked near nozzle.In the ink gun, by from the connection stream
Ink is flowed through in road towards nozzle, can discharge bubble near nozzle etc. to manifold side via balancing gate pit.
In addition, Patent Document 2 discloses a kind of following ink gun, possess：Balancing gate pit, it is stored projects from nozzle
Ink, formed by the next door of piezoelectric；Independent communication stream, it is linked near nozzle；Common flow path, it should for coming from
The ink interflow of independent communication stream；Stream, it is used for out of ink to the outer row of head.In the ink gun, independent communication stream with
And common flow path is located at the substrate provided with nozzle, it can make bubble near nozzle etc. together with ink by these streams, and then
Outside to ink gun is discharged.
In addition, in the ink gun that patent document 1 and 2 is recorded, it is black due to that can be projected on one side from nozzle, while going
Except bubble near nozzle etc., therefore the reduction of the productivity ratio caused by other upkeep operation can be suppressed.
Prior art literature
Patent document
Patent document 1：No. 5047958 publications of Japanese Patent No.
Patent document 2：No. 5381915 publications of Japanese Patent No.
The content of the invention
However, in the ink gun described in patent document 1, the company of relatively large volume is needed in head chip internal
Through-flow road (high impedance channel), balancing gate pit etc., in the case of using the composition with multiple nozzles, asking for maximization be present
Topic.Here, the ink-jet recording apparatus (reference picture particularly fixed ink gun in the drum for rotating recording medium and continuously printed
1) in, if ink-jet is large-scale, be difficult to each nozzle by recording medium and ink gun distance remain it is constant, it is difficult to carry out high
Clearly print.It is therefore desirable to make ink gun small-sized.In addition, it is manufactured into caused by increase for material used in manufacture
This increase, the viewpoint of the saving spatialization of device, it is also desirable to make ink gun small-sized.
In addition, ink gun described in patent document 2 is formed and only for balancing gate pit (passage) by the next door of piezoelectric
The next door is equally spaced configured to the composition that can be realized as miniaturization.However, due to only in the narrow of the substrate provided with nozzle
Formed with independent communication stream and common flow path, therefore, it is difficult to reduce the flow path resistance of these streams in narrow region, it is difficult in order to
Discharge bubble etc. and produce enough black recycle streams.
The present invention in view of so the problem of and complete, it solves problem and is, there is provided one kind can realize miniaturization, simultaneously
And with the manufacture method that can be effectively discharged out the ink gun of stream of bubble etc., ink-jet recording apparatus and ink gun.
In order to solve the problem, the invention described in technical scheme 1 is,
A kind of ink gun, possesses：
Nozzle layer, it is formed with the multiple nozzles for projecting ink；
Balancing gate pit's layer, it is laminated in the nozzle layer, and formed with multiple nozzles are respectively communicated with, to for more from this
Multiple balancing gate pits that the ink that individual nozzle projects is stored,
By applying pressure to the balancing gate pit to project ink, the ink gun has：
Multiple independent communication streams, its be formed at the nozzle layer towards the part of balancing gate pit's layer and described
At least one party of the part towards the nozzle layer of balancing gate pit's layer, connected with each of multiple balancing gate pits, Neng Goupai
Go out the ink of the balancing gate pit；
Common flow path, it links with multiple independent communication streams, for what is discharged from multiple independent communication streams
Ink interflow；
Discharge duct, it is connected with the common flow path, can be from the common flow path to the outer row of balancing gate pit's layer
It is out of ink,
The restriction that the common flow path has the black direction discharged of direction and makes the area of section of stream narrow, should
Restriction is connected to the discharge duct.
Invention described in technical scheme 2 is, in the ink gun described in technical scheme 1,
The common flow path is at least located at the part towards the nozzle layer of balancing gate pit's layer.
Invention described in technical scheme 3 is, in the ink gun described in technical scheme 2,
The width in the black injection direction of the common flow path is bigger than the thickness of the nozzle layer.
Invention described in technical scheme 4 is, in the ink gun described in any one of technical scheme 1 to technical scheme 3
In,
The restriction be located at the common flow path in, than described in the end located at the direction that the ink is discharged
The position of independent communication stream in the outer part.
Invention described in technical scheme 5 is, in the ink gun described in any one of technical scheme 1 to technical scheme 4
In,
The restriction is formed as, and tapers into area of section towards the direction that the ink is discharged.
Invention described in technical scheme 6 is, in the ink gun described in any one of technical scheme 1 to technical scheme 5
In,
The discharge duct is can be from the common flow path towards the stream of the side discharge ink opposite with the nozzle layer
Road,
The area of section of the discharge duct is bigger than the maximum cross-section area in the common flow path.
Invention described in technical scheme 7 is, in the ink gun described in any one of technical scheme 1 to technical scheme 6
In,
The common flow path is linear stream.
Invention described in technical scheme 8 is, in the ink gun described in any one of technical scheme 1 to technical scheme 7
In,
The common flow path seals at least one end of stream using the restriction.
Invention described in technical scheme 9 is, in the ink gun described in any one of technical scheme 1 to technical scheme 7
In,
The seal member for being used for sealing the common flow path is provided with least one end of the common flow path.
Invention described in technical scheme 10 is, in the ink-jet described in any one of technical scheme 1 to technical scheme 9
In head,
Possess the black manifold internally stored to multiple balancing gate pit's supplies,
The manifold is located at the top of the balancing gate pit.
Invention described in technical scheme 11 is a kind of ink-jet recording apparatus,
Possess：In the ink gun described in any one of technical scheme 1 to technical scheme 10；For producing from the pressure
Black circulating member of the power room to the recycle stream of the independent communication stream.
Invention described in technical scheme 12 is the spray described in any one of manufacturing technology scheme 1 to technical scheme 10
The manufacture method of black head,
By making cutter be moved along balancing gate pit's layer to form the common flow path.
Invention described in technical scheme 13 is, in the manufacture method of the ink gun described in technical scheme 12,
When forming the common flow path, make the cutter relative to thickness direction shoal it is mobile, so as to described
Common flow path forms the restriction.
In accordance with the invention it is possible to provide a kind of achievable miniaturization and with the stream that can be effectively discharged out bubble etc.
The manufacture method of the ink gun on road, ink-jet recording apparatus and ink gun.
Brief description of the drawings
Fig. 1 is the skeleton diagram for representing ink-jet recording apparatus.
Fig. 2 is the upward view for representing head unit.
Fig. 3 is the stereogram (a) and profile (b) for representing ink gun.
Fig. 4 is the exploded perspective view for representing ink gun.
Fig. 5 is to represent a chip, circuit board, flexible base board and drive circuit substrate, standing from upper surface side
Body figure (a) and the stereogram (b) from lower face side.
Fig. 6 is the exploded perspective view for showing schematically a chip and circuit board.
Fig. 7 is for illustrating black stereogram flowing, from lower face side in head chip.
Fig. 8 is to use profile obtained by the partial sectional along (VIII)-(VIII) lines in Fig. 7.
Fig. 9 is the profile for the variation for representing Fig. 8.
Figure 10 is to use profile obtained by the partial sectional along (X)-(X) lines in Fig. 7.
Figure 11 is to use profile obtained by the partial sectional along (XI)-(XI) lines in Fig. 7.
Figure 12 is the local stereogram for extracting common flow path and showing.
Figure 13 is the profile for the variation for representing Figure 11.
Figure 14 is the stereogram for the nozzle layer for representing a chip.
When Figure 15 is balancing gate pit, independent communication stream, common flow path and the discharge duct for representing to overlook in head chip
The schematic diagram of position relationship.
Figure 16 is to be exaggerated Figure 14 dotted portion (XVI) and is the independent communication stream of the upper surface of nozzle layer
Top view near upstream-side-end.
Figure 17 is the top view for the variation for representing Figure 16.
Figure 18 is to represent manifold, the stereogram (a) from upper surface side and the stereogram (b) from lower face side.
Figure 19 is to represent housing, the stereogram (a) from upper surface side and the stereogram (b) from lower face side.
Figure 20 is the schematic diagram for representing the black cycling mechanism in ink-jet recording apparatus.
Description of reference numerals
1 chip
5 manifolds
The cycling mechanism (black circulating member) of 8 ink
11 nozzle layers
11a nozzles
12 balancing gate pit's layers
12c seal members
13A balancing gate pits
13B discharge duct
18 independent communication streams
19 common flow paths
19a restrictions
100 ink guns
200 ink-jet recording apparatus
Embodiment
Hereinafter, on one side referring to the drawings, while being illustrated to the preferred embodiment of the present invention.Wherein, the model of invention
Enclose and be not limited to illustrated example.In addition, in this manual, the nozzle 11a of ink gun 100 orientation is set to left and right
Direction (reference picture 2, Fig. 6 and Fig. 7 etc.), the injection direction of ink is set to above-below direction, will be with left and right directions and upper and lower
Always illustrated to this two upright friendship side to being set to front and back.In addition, the arrow in the stream of accompanying drawing refers to the stream of ink
Dynamic direction.
[ink-jet recording apparatus]
As shown in figure 1, the sheet feed section 210 of ink-jet recording apparatus 200, the circulation of image record portion 220, paper discharge unit 230, ink
Mechanism 8 (reference picture 20) etc..The recording medium M for being stored in sheet feed section 210 is transported to image record by ink-jet recording apparatus 200
Portion 220, image is formed on recording medium M using image record portion 220, and by the recording medium M formed with image to ADF
Portion 230 conveys.
As recording medium M, in addition to common paper, this kind of paper of coating paper, the tree of cloth and silk or sheet can be also used
Fat etc. can make land in the fixing various media of the ink on surface.
Sheet feed section 210 has storage recording medium M paper supply tray 211 and from paper supply tray 211 to image record portion
220 convey and supply recording medium M medium supply unit 212.Medium supply unit 212 has the wheel that inner side is supported by two rollers
The band of shape, by take at this and be placed with recording medium M state and rotate roller, so as to remember from paper supply tray 211 to image
The conveying recording medium M of record portion 220.
Image record portion 220 has conveyance drum 221, transfer unit 222, heating part 223, head unit 224, fixing section
225th, transport unit 226 etc..
Conveyance drum 221 is in the face of cylinder, and its outer peripheral face turns into the conveyor surface for loading recording medium M.Conveyance drum 221 passes through
Rotated with the direction of the arrow in Fig. 1 with the state for the medium M that held the record on its conveyor surface, remembered so as to be conveyed along conveyor surface
Recording medium M.In addition, conveyance drum 221 possesses claw and intake section (omitting diagram), recording medium M end is pressed using claw
Portion, and recording medium M is attracted to conveyor surface using intake section, so as to the medium M that held the record on conveyor surface.
Position of the transfer unit 222 between the medium supply unit 212 of sheet feed section 210 and conveyance drum 221, utilizes pendulum
Swing arm portion 222a keeps and lifts the recording medium M conveyed from medium supply unit 212 one end, via handing-over drum 222b handing-over
To conveyance drum 221.
Heating part 223 is between handing-over drum 222b allocation position and the allocation position of head unit 224, in order that sharp
The recording medium M conveyed with conveyance drum 221 reaches the temperature within the temperature range of providing and heats recording medium M.Heating
Portion 223 is such as with infrared heater, based on from the control signal of control unit (omitting diagram) supply to infrared heating
Device is powered and heater is generated heat.
Head unit 224 is based on view data, corresponding appropriate in the rotation of the conveyance drum 221 with maintaining recording medium M
At the moment, recording medium M is projected black and image is formed.The black outgoing plane of head unit 224 is opposed to separate rule with conveyance drum 221
Fixed distance and configure.In the ink-jet recording apparatus 200 of present embodiment, for example, will respectively with yellow (Y), pinkish red (M),
Cyan (C), black (K) this 4 color ink corresponding to 4 head units 224, from recording medium M conveying direction upstream side according to
Y, M, C, K color sequences arrange ground assortment at a prescribed interval.
As shown in upward view in Fig. 2, the diverse location of head unit 224 in the longitudinal direction is configured with along preceding with staggered
Group of the rear to adjacent a pair of ink guns 100.By the configuration of such ink gun 100, compared on recording medium M
Formed image region width, make the nozzle 11a of ink gun 100 configuration in the lateral direction width turn on an equal basis with
On width scope.In addition, head unit 224 will be consolidated in the record of image relative to the position of the rotary shaft of conveyance drum 221
It is fixed to use.That is, ink-jet recording apparatus 200 is to have used ink jet head, carried out the image note that 1 paths describe mode
The ink-jet recording apparatus of record.
As the ink of the nozzle 11a injections from ink gun 100, such as the ink with following property can be used：Pass through temperature
Phase change gel or colloidal sol shape, are solidified by irradiating the energy-rays such as ultraviolet.
In addition, in the present embodiment, such as can be used at normal temperatures for gel and by being heated as colloidal sol
The ink of shape.Head unit 224 possesses the black heating part for illustrating the omission that the ink being stored in head unit 224 heats, ink heating
Ink can be heated to the temperature as colloidal sol shape by portion.Ink gun 100, which projects, to be heated and turns into the ink of colloidal sol shape.If to note
Recording medium M projects the ink of the colloidal sol shape, then ink droplet promptly makes ink in land after recording medium M by natural cooling
As gel, and solidified on recording medium M.
Fixing section 225 has the illuminating part of the width configuration along the X-direction of conveyance drum 221, from the illuminating part to being placed in
The energy-rays such as the recording medium M irradiation ultraviolets of conveyance drum 221, make to inject to the ink solidification on recording medium M and be fixed.
The illuminating part of fixing section 225 in the downstream of the allocation position of head unit 224 and is in the conveying direction transport unit 226
The upstream side of handing-over drum 226a allocation position is opposed to configure with conveyor surface.
Transport unit 226 has：Band 226b, it has the band for the colyliform that inner side supported by two rollers；Cylindric handing-over
Drum 226a, recording medium M join by it from conveyance drum 221 to band 226b, using band 226b, will by the bulging 226a of handing-over from
The recording medium M that conveyance drum 221 is handed off on band 226b is conveyed and sent out to paper discharge unit 230.
Paper discharge unit 230 has the tabular of the recording medium P mountings for being sent out using transport unit 226 from image record portion 220
Discharge tray 231.
[ink gun]
Fig. 3 (a) is the stereogram for representing to apply the ink gun 100 of embodiments of the present invention, and Fig. 3 (b) is ink gun
100 profile.In addition, Fig. 4 is the exploded perspective view for representing ink gun 100.In addition, in Fig. 3 (a), manifold 5 is eliminated
Diagram, in Fig. 3 (b) and Fig. 4, eliminate the diagram of cap assembly 9.
In addition, in the present embodiment, illustrate that the nozzle of a chip 1 is classified as the example of 2 row, but nozzle 11a row
Number, configuration can be changed suitably, for example, it may be more than 1 row or 3 row.
As shown in Fig. 3 and Fig. 4 etc., the ink gun 100 of present embodiment possesses a chip 1, is equipped with a chip 1
Circuit board 2, the drive circuit substrate 4 being connected via flexible base board 3 with circuit board 2, to the pressure into head chip 1
Manifold 5 that the ink of room 13A supplies is stored, the housing 6 for being accommodated with inner side manifold 5, to block the bottom surface opening of housing 6
Mode cage plate 7, the cap assembly 9 etc. that is installed on housing 6 installed.In addition, the injection of the ink gun 100 of present embodiment
Mode is not particularly restricted, but for example bright for the ink gun 100 of shared model mode.
Head chip 1 is the part of the substantially quadrangular shape of long size in the lateral direction, by nozzle layer 11 and balancing gate pit's layer
12 form (reference picture 6, Fig. 7 etc.).In addition, in Fig. 7~Figure 14, it is only that a part of region amplification of head chip 1 is schematic
Ground is represented, diagram is eliminated for the region of the end side in the left side of head chip 1.
In balancing gate pit, layer 12 is provided with balancing gate pit 13A, discharge duct 13B and common flow path 19 etc..
Balancing gate pit 13A utilizes the next door formed by piezoelectric separatedly to be formed, to the ink for being projected from nozzle 11a
Stored.The driving electricity of the next door driving between the balancing gate pit 13A for being used for will abut against is provided with each balancing gate pit 13A inner surface
Pole 14, if driving electrodes 14 are applied with voltage, the next door part between adjacent balancing gate pit 13A repeats the position of shared model type
Move, pressure is applied to the ink in balancing gate pit 13A.In addition, in the present embodiment, driving electrodes 14 turn into metal film coated.
In addition, each balancing gate pit 13A has the section of substantially rectangular shape, and formed along the vertical direction, the layer 12 in balancing gate pit
Upper surface has entrance, has outlet in lower surface.In addition, each balancing gate pit 13A is in the length direction from entrance to outlet
The almost unchanged straight type of size and shape, is equipped with multiple balancing gate pits in a manner of being parallel to each other on (above-below direction)
13A、….Moreover, this multiple balancing gate pit 13A is arranged in left-right direction, and be formed as in the longitudinal direction in two row.In addition,
The diagram of driving electrodes 14 is eliminated in addition to Fig. 6.
Discharge duct 13B is separated and formed by next door identically with balancing gate pit 13A, and towards upside (with the side of nozzle layer 11
Opposite side) turn into the outside stream discharged being used for by ink to ink gun 100.In addition, discharge duct 13B is vertically
Direction is formed, and in balancing gate pit, the upper surface of layer 12 has outlet, has entrance in lower surface.In addition, discharge duct 13B enter for
The almost unchanged straight type of size and shape on the length direction (above-below direction) from entrance to outlet, to be parallel to each other
Mode be equipped with arranging balancing gate pit 13A ..., and be formed about two in the right part of head chip 1.
In addition, for the viewpoint for the expulsion efficiency for reducing the flow path resistance overall as head chip 1 and improving ink, such as scheme
6th, shown in Figure 10 and Figure 11 etc., discharge duct 13B is preferably set to have the volume bigger than balancing gate pit 13A.In addition,
For identical viewpoint, discharge duct 13B area of section is preferably set to be more than the maximum cross-section area of common flow path 19.
Common flow path 19 is to be linked with the independent communication stream 18 connected with balancing gate pit 13A and supply from these independent communications
Stream 18 flows through the stream at the ink interflow come.Common flow path 19 is preferably at least located at balancing gate pit's layer 12 towards nozzle layer
11 part.In the example shown in Fig. 8, Figure 11 and Figure 14 etc., show across balancing gate pit's layer 12 towards nozzle layer 11
Part and nozzle layer 11 the part towards balancing gate pit's layer 12 and the example that is formed, but not necessarily cross over nozzle layer 11
And formed, it can also only be formed at the part towards nozzle layer 11 of balancing gate pit's layer 12.
In addition, common flow path 19 is located at each of nozzle rows in a manner of parallel in left-right direction, and in common flow path
Right part nearby be communicated in discharge duct 13B (reference picture 6, Fig. 7 and Figure 11).In the present embodiment, due to that will share
Stream 19 is located at balancing gate pit's layer 12, therefore the width of the width (above-below direction) in the black injection direction by making common flow path 19
Degree is bigger than the thickness of nozzle layer 11, can be than the volume of the increase stream only when nozzle layer 11 sets common flow path 19.In addition,
By setting the larger common flow path 19 of volume, by increasing capacitance it is possible to increase the black internal circulating load in head chip 1, therefore can effectively arrange
Go out bubble etc..In addition, it can effectively enter the radiating of wardrobe chip 1.
In addition, common flow path 19 is formed as linear stream.Thereby, it is possible to by the sediment in ink, bubble etc. and ink
It is effectively discharged out together.
In addition, as shown in Figure 12, the local stereogram for extracting the common flow path 19 being formed in a chip 1, altogether
The direction D1 that discharge ink is provided with stream 19 is gone and restriction 19a that the area of section 19b of stream narrows, the restriction
19a is connected to discharge duct 13B.
In addition, for the viewpoint of manufacture efficiency, the direction to narrow as the stream in restriction 19a, preferably form
To narrow (reference picture 11) on thickness direction (above-below direction), but be not limited to that this, can also be formed as sharing stream
Narrow (reference picture 15) on the width (fore-and-aft direction) on road 19, may be formed as two sides and all narrow.If in common flow path
Interior 19 accelerate formed with restriction 19a, the then flow velocity in common flow path 19, therefore can make in the ink in common flow path 19
The delay of sediment, bubble is reduced.
In addition, as shown in figure 15, restriction 19a be preferably be located at it is in common flow path 19, than being discharged located at ink
The independent communication stream 18a of the end in direction is in the outer part (black discharge direction side).Thus, provided with independent communication stream 18
Near, black flow velocity is difficult to change, therefore can reduce and improve what black flow velocity was brought to the injection of ink in common flow path 19
Influence.In addition, Figure 15 is balancing gate pit 13A, independent communication stream 18, common flow path 19 and the row for representing to overlook in head chip 1
The schematic diagram of position relationship when going out stream 13B, and show with arrow the black discharge direction in common flow path 19.Separately
Outside, for convenience of explanation, by independent communication stream in independent communication stream 18, located at the end in the direction that ink is discharged
It is expressed as 18a.
In addition, as shown in Figure 12 etc., restriction 19a is preferably formed as gradually decreasing towards the direction that ink is discharged
Area of section.Thus, bubble is difficult to the wall for being hung on common flow path 19, therefore can be efficiently by the sediment in ink, bubble
Discharged with together with ink.
In addition, common flow path 19 can be by making cutter (dicing blade) be moved along balancing gate pit's layer 12 to be formed.
In addition, when forming common flow path 19, can be moving cutter in a manner of being shoaled on thickness direction (Z-direction)
And form restriction 19a.It is processed by using cutter, common flow path 19 easily can be formed with high accuracy.
Nozzle layer 11 be rectangular plate-like part, in balancing gate pit the lower surface of layer 12 be set to block balancing gate pit 13A and
The end of discharge duct 13B downside.In addition, it is provided with nozzle 11a and independent communication stream 18 etc. in nozzle layer 11.
Each balancing gate pit 13As of the nozzle 11a in nozzle layer 11 opposed locations through-thickness (above-below direction) insertion ground
Set, and the ink stored in the balancing gate pit 13A of connection is projected.In addition, nozzle 11a in the present embodiment, along right and left
Two row are formed to arrangement, and in fore-and-aft direction.
Independent communication stream 18 is formed as from nozzle 11a sides direction in the part towards balancing gate pit's layer 12 of nozzle layer 11
Common flow path 19 extends along the longitudinal direction, and balancing gate pit 13A is connected into (reference picture 8, Figure 14 etc.) with common flow path 19.
In addition, in the present embodiment shown in Fig. 8, by independent communication stream 18 be only formed at nozzle layer 11 towards
The part of balancing gate pit's layer 12, but as long as balancing gate pit 13A is connected with common flow path 19, then be formed at nozzle layer 11 towards pressure
The part of power room floor 12 and balancing gate pit's floor 12 towards at least one party in the part of nozzle layer 11.For example, can be only
The part towards nozzle layer 11 of balancing gate pit's layer 12 is arranged at, can also be formed across nozzle layer 11 with the ground of balancing gate pit's layer 12.
In addition, in the present embodiment, independent communication stream 18 shares relative to one set according to each nozzle rows
Stream 19, it is set as being only oriented towards away from common flow path 19 (Fig. 8 and Figure 14) near nozzle 11a, but is not limited to this.For example,
Can also as shown in Fig. 9 variation, by common flow path 19 parallel in the longitudinal direction balancing gate pit 13A fore-and-aft direction
Both sides be respectively provided with 1 row, and each towards two common flow paths 19,19 sets independent communication stream 18,18.Using
Such composition, can further increase the internal circulating load of ink, therefore can more effectively discharge bubble etc..
In addition, in the case where nozzle layer 11 is provided with independent communication stream 18, preferably common flow path 19 is crossed over and sprayed
The ground of mouth layer 11 is formed.Thereby, it is possible to be easy to make to flow to the shared stream of balancing gate pit's layer 12 from the ink that independent communication stream 18 flows through
Road 19.
By in a manner of by common flow path 19 along the vertical direction section obtained by cutting head chip 1 (Fig. 7 along
XI-XI section) represent in fig. 11.The right end portion of the long side direction (left and right directions) of common flow path 19 utilizes throttling
Portion 19a seals the end of stream.Specifically, in common flow path 19, the width direction ink of above-below direction (ink projects direction)
Discharge direction and narrow, the upper surface of common flow path 19 is connected with lower surface and sealed (Figure 12).Using such structure
Into the end of common flow path 19 only can be sealed by the engagement of nozzle layer 11 and balancing gate pit's layer 12.
In addition, the composition as sealing common flow path 19, as long as being sealed to that ink will not be leaked from common flow path 19, with regard to energy
Enough it is altered to appropriate composition.
For example, it is also possible to the right end portion in the long side direction (left and right directions) of common flow path 19 sets seal member
12c, and utilize seal member 12c sealing ends (Figure 13).By using such composition, in balancing gate pit, layer 12, which is formed, shares
, can be to form shared stream in a manner of being through to the side surface part of left and right directions (long side direction of common flow path 19) during stream 19
Road 19, therefore manufacture efficiency can be improved.
In addition, in Figure 11 and Figure 13, although eliminating the diagram in the region of left part side, but it is preferred that with
The side surface part of right part side identical method sealing common flow path 19.
Top view obtained by near the upstream-side-end of the independent communication stream 18 of the upper surface of nozzle layer 11 will be exaggerated
(Figure 13 dotted portion (XVI)) represents in figure 16.As shown in Fig. 8 and Figure 16, on the nozzle 11a tops of nozzle layer 11
Provided with rectangular-shaped recess 11b, nozzle 11a is provided through in recess 11b.In addition, as shown in figure 16, independent communication stream
The upstream-side-end on road 18 is preferably formed as more removing the wider taper of width to recess 11b sides (upstream side).By being set to
Such shape, so as to be difficult to hang with bubble, therefore it can easily discharge the bubble being present near nozzle 11a.
In addition, in fig. 17, in the case of composition shown in the variation that head chip 1 is set to shown in Fig. 9, show
The top view that the upstream-side-end of independent communication stream 18 is nearby amplified.In the variation, from the recess of nozzle layer 11
11b towards be respectively provided with front side and rear side 1 row common flow path 19,19 each ground be provided with independent communication stream 18,
18。
More than that nozzle layer 11 for example can by the method that is laser machined to the plate of polyimide material or
The method that processing is etched to the plate of silicon materials, nozzle 11a, recess 11b and independent communication stream 18 are once formed to make
Make.In addition, as long as the material of nozzle layer 11 can be etched processing, resin or metal can be used.
As shown in Fig. 5 (a) and Fig. 5 (b), circuit board 2 is equipped with the upper surface of head chip 1, in circuit board 2
The both sides edge along left and right directions, be equipped with two flexible base boards 3,3 being connected with drive circuit substrate 4,4.
Circuit board 2 is formed as the substantially rectangular tabular of long size in the lateral direction, has in its substantially central portion and opens
Oral area 22.The left and right directions of circuit board 2 and each width of fore-and-aft direction are formed respectively must be bigger than head chip 1.
Opening portion 22 is formed as the substantially rectangular shape of long size in the lateral direction, to be provided with a core in circuit board 2
The state of piece 1, the outlet of the entrance and discharge duct 13B of each balancing gate pit 13A in a chip 1 is set to expose in upside.
In addition, in the edge of the fore-and-aft direction side of opening portion 22, the driving with from the beginning chip 1 is equipped with specified quantity
The electrode that electrode 14 is drawn to the upper surface of head chip 1 (omits and illustrated) electrode portion 21 (Fig. 6) of connection.
In addition, as shown in Fig. 4 and Fig. 5 etc., arranged respectively in the edge of the fore-and-aft direction side of circuit board 2 flexible
Substrate 3.
As shown in fig. 6, flexible base board 3, which has, makes what drive circuit substrate 4 electrically connected with the electrode portion 21 of circuit board 2
Multiple wirings 31 ....Thus, the signal from drive circuit substrate 4 applies chip to the end via wiring 31 and electrode portion 21
Driving electrodes 14 in 1 each balancing gate pit 13A.
In addition, as shown in figure 4, in the outer edge of circuit board 2, the bottom of manifold 5 is mounted with by bonding.
That is, manifold 5 is configured at the balancing gate pit 13A of a chip 1 entrance side (upside), links via circuit board 2 with head chip 1.
Manifold 5 is the part using ester moulding, located at the balancing gate pit 13A of head chip 1 top, internally store to
The ink that balancing gate pit 13A is imported.Specifically, as shown in Fig. 3 (b), Figure 18 (a) and Figure 18 (b) etc., manifold 5 is in left and right directions
On be formed as long size, possess the main part 52 for the hollow form for forming black storage part 51 and form the first~the 4th of black stream
Black port 53~56.
Main part 52 is formed as the matrix of open lower side, is provided with to pass through for circuit board 2 in the edge of its lower ending opening and glues
Close the fixed circuit board installation portion 521 of installation.Moreover, pass through the cloth that will possess a chip 1 in a manner of blocking lower ending opening
Line substrate 2 is installed on circuit board installation portion 521, constitutes black storage part 51.
The first black port 53 is communicated with the right side upper end of black storage part 51.In addition, on the left side of black storage part 51
End is communicated with the second black port 54, and more keep left side and downside in the part connected than the second black port 54, is communicated with
Three black ports 55.Moreover, the row connected with the discharge duct 13B of head chip 1 is marked off in the right side bottom of black storage part 51
Go out to use liquid room 57, the 4th black port 56 is communicated with the discharge liquid room 57.
In the inner side of main part 52 and it is the above-below direction center than black storage part 51 in addition, as shown in Fig. 3 (b)
Position under, it is equipped with the filter F for removing the rubbish in ink removing.
In addition, as shown in Fig. 3 (b) and Figure 18 (b) etc., in black storage part 51 from the bottom of main part 52 towards upper
It is provided with the inner side face 511 for being shaped generally as identical height along the vertical direction to side.Here, black storage part 51 is provided with from this
Extend defined length substantially in parallel relative to fore-and-aft direction and left and right directions towards inner side in the upper end of inner side face 511
The filter edge installation portion 512 for spending and supplying the outer edge of the filter F of substantially rectangular shape to abut.
In addition, the left part of filter edge installation portion 512 and be the second black 54 and the 3rd black port 55 of port it
Between part be provided with end side filter installation portion 513, the end side filter installation portion 513 is formed to inner side face 511
Above with below, being abutted for the ratio left end of filter F slightly by the part of inner side.The end side filter installation portion 513 is formed as
The roughly equal height with filter edge installation portion 512.
Moreover, it is mounted with end side filter installation portion 513 and filter edge installation portion 512 using bonding
Filter F.
So, by arranging filter F in black storage part 51, so as to which the black storage part 51 be divided into and the first black end
Black port 54 the first liquid room 51a connected of mouth 53 and second and the second liquid connected with each balancing gate pit 13A in head chip 1
Room 51b.Wherein, the second liquid room 51b connects via filter F with the 3rd black port 55.
First black port 53 to black storage part 51 for example for importing ink.The first black port 53 is formed as vertically side
It is roughly equal in the vertical direction to the cylindrical shape of extension, external diameter.In addition, the first black port 53 is installed in housing in manifold 5
When 6, the first inserting hole 66 (aftermentioned) of housing 6, the external diameter of the first black port 53 and the internal diameter of the first patchhole 66 are inserted through
It is roughly equal or more slightly smaller than its.
In addition, it is inserted with the first joint 81a outside the leading section of the first black port 53.That is, manifold 5 is being installed on housing 6
When, inserting to the first inserting hole 66 and from the leading section of prominent the first black port 53 in the upper surface of housing 6, first is being connect
Head 81a carries out extrapolation in a manner of being slidable in the vertical direction freely.First joint 81a is connected for black supply pipe (not shown)
It is connected to the barb accessory (joint component) of upper end.Specifically, the first joint 81a is formed as vertically extending cylinder
Shape, in upper end formed with black pipe jointing part 811, it is provided with the downside of black pipe jointing part 811 before supplying the first black port 53
The front end insertion section 812 of end insertion.
Second black port 54 is for example for by the bubble removal in the first liquid room 51a.The second black port 54 be formed as with
The roughly equal shape in first black port 53.
That is, the second black port 54 is formed as vertically extending cylindrical shape, external diameter substantially phase in the vertical direction
Deng.In addition, the second black port 54 when manifold 5 is installed in housing 6, is inserted through the second inserting hole 64 (aftermentioned) of housing 6,
The internal diameter of the external diameter and the second patchhole 64 of the second black port 54 is roughly equal or more slightly smaller than its.
In addition, it is inserted with the second joint 81b outside the leading section of the second black port 54.That is, manifold 5 is being installed on housing 6
When, inserting to the second inserting hole 64 and from the leading section of prominent the second black port 54 in the upper surface of housing 6, second is being connect
Head 81b carries out extrapolation in a manner of being slidable in the vertical direction freely.Second joint 81b is in bottom formed with for the second black port
54 leading section is slidable in the vertical direction the front end insertion section 812 inserted freely.In addition, the second joint 81b composition with it is outer
It is roughly equal to insert in the first joint 81a of the second black port 54, omits detail explanation.
3rd black port 55 is for example for by the bubble removal in the second liquid room 51b.3rd black port 55 is formed as edge
The cylindrical shape of above-below direction extension, external diameter are roughly equal in the vertical direction.In addition, the 3rd black port 55 is mounted in manifold 5
When housing 6, the 3rd inserting hole 65 (aftermentioned) of housing 6, the external diameter and the 3rd patchhole 65 of the 3rd black port 55 are inserted through
Internal diameter it is roughly equal or more slightly smaller than its.
In addition, the 3rd joint 82 (reference picture 3 (a) etc.) is inserted with outside the leading section of the 3rd black port 55.That is, by discrimination
When pipe 5 is installed on housing 6, inserted to the 3rd inserting hole 65 and from prominent the 3rd black port 55 in the upper surface of housing 6
Leading section, the 3rd joint 82 is subjected to extrapolation in a manner of being slidable in the vertical direction freely.In addition, the 3rd joint 82 in order to
Enough outer leading sections for inserting in the 3rd black port 55 and the size less than the first joint 81a and the second joint 81b, it is main
Form, omission detail explanation roughly equal with the first joint 81a and the second joint 81b.
4th black port 56 is used for head chip via independent communication stream 18, common flow path 19 and discharge duct 13B
The bubble in balancing gate pit 13A in 1 is discharged to the outside of ink gun 100.4th black port 56 is formed as prolonging along the vertical direction
The cylindrical shape stretched, external diameter are roughly equal in the vertical direction.In addition, the 4th black port 56 is when manifold 5 is installed in housing 6,
The discharge for being inserted through housing 6 uses the internal diameter of patchhole 67 with discharge with inserting hole 67 (aftermentioned), the external diameter of the 4th black port 56
It is roughly equal or more slightly smaller than its.
Next, reference picture 19 (a) and Figure 19 (b) etc. illustrate to housing 6.
Housing 6 is the part for shaping aluminium by casting die as material, is formed as long size in the lateral direction.
In addition, housing 6 is formed as that the manifold 5 for being provided with a chip 1, circuit board 2 and flexible base board 3 can be stored on the inside of it,
The bottom surface opened of the housing 6.
Specifically, in the bottom of housing 6 formed with being opened in the lateral direction on the downside of the substantially rectangular shape of long size
Oral area 61, the manifold 5 for making to be provided with a chip 1, circuit board 2 and flexible base board 3 is from downside via the open lower side portion 61
Insert, the inner side of the housing 6 can be disposed in.
The cage plate installation portion installed and fixed for cage plate 7 (reference picture 4 etc.) is provided with the edge in open lower side portion 61
62。
As shown in figure 4, cage plate 7 is corresponding with the shape of cage plate installation portion 62, profile is formed as long in the lateral direction
The substantially rectangular tabular of size, in its substantially central portion formed with for nozzle layer 11 is exposing, long size in the lateral direction
Nozzle opening portion 71.
Moreover, when the manifold 5 that a chip 1, circuit board 2 and flexible base board 3 are provided with the arranging of the inner side of housing 6
Afterwards, nozzle layer 11 exposes via nozzle opening portion 71, and cage plate 7 is installed on into cage plate installation portion 62, so as to turn into shell
The state that the open lower side portion 61 of body 6 is blocked.
In addition, as shown in Fig. 4, Fig. 9 (a) and Fig. 9 (b) etc., formed in the substantially central portion of the left and right directions of housing 6
There are two drive circuit substrates 4,4 for being connected with manifold 5 and two substrate insert openings of the insert of flexible base board 3,3
63。
These substrate inserting openings 63,63 to housing 6 by installing cap assembly 9 (reference picture 3 (a)) to be blocked.
In second black port 54 of the left side of two substrate inserting openings 63,63 formed with confession manifold 5 of housing 6
Second inserting hole 64 of leading section insert, slightly by left side and is being lower than second inserting hole 64 than the second inserting hole 64
Position, the 3rd inserting hole 65 (reference picture 3 (b)) of the leading section insert formed with the 3rd black port 55 for manifold 5.
Second inserting hole 64 is disposed in the upper left side pocket for the defined depth that has been recessed from 6a above a left side first for housing 6
641, and be formed as penetrating the bottom surface of the upper left side pocket 641 along the vertical direction.In addition, the second inserting hole 64 and the second black end
The external diameter of mouth 54 is roughly equal or slightly larger.Also, the outer edge of the second inserting hole 64 be formed as with left and right directions and
Fore-and-aft direction is almost parallel.
3rd inserting hole 65 is disposed in above than a left side first 6b above the low left sides second of 6a and has been recessed defined depth
Lower-left side pocket 651, and be formed as penetrating the bottom surface of the lower-left side pocket 651 along the vertical direction.In addition, the 3rd inserting hole 65
It is roughly equal or slightly larger with the external diameter of the 3rd black port 55.Also, the outer edge of the 3rd inserting hole 65 is formed as and a left side
Right direction and fore-and-aft direction are almost parallel.
On the other hand, housing 6 two substrate inserts opening 63,63 right side, with the second inserting hole 64 substantially
First inserting hole 66 of leading section insert of the equal height formed with the first black port 53 for manifold 5, than the first insert
Hole 66 is slightly by right side and is the position lower than first inserting hole 66, before for the 4th black port 56 of manifold 5
The discharge of end insert is with inserting hole 67 (reference picture 3 (b)).
First inserting hole 66 is disposed in the upper right side pocket for the defined depth that has been recessed from 6c above the right side first of housing 6
661, and be formed as penetrating the bottom surface of the upper right side pocket 661 along the vertical direction.In addition, the first inserting hole 66 and the first black end
The external diameter of mouth 53 is roughly equal or slightly larger.Also, the outer edge of the first inserting hole 66 be formed as with left and right directions and
Fore-and-aft direction is almost parallel.
Discharge inserting hole 67 is disposed in above than the right side first 6d above the low right sides second of 6c and has been recessed defined depth
Bottom right side pocket 671, and be formed as penetrating the bottom surface of the bottom right side pocket 671 along the vertical direction.In addition, discharge is inserted
The external diameter in hole 67 and the 4th black port 56 is roughly equal or slightly larger.Also, discharge is formed with the outer edge of inserting hole 67
To be almost parallel with left and right directions and fore-and-aft direction.
In addition, ratio the 3rd inserting hole 65 in housing 6 keeps left the end and than discharge inserting hole 67 on the right side of side
End, it is respectively formed with the erection opening 68 for the housing 6 to be installed on to printer main body side.
[black cycling mechanism]
Ink-jet recording apparatus 200 in present embodiment has the black cycling mechanism 8 of the circulating member as ink.Ink
As long as cycling mechanism 8 can produce from balancing gate pit 13A to the recycle stream of independent communication stream 18 and from discharge duct 13B
Black composition into the outside discharge balancing gate pit 13A of head chip, then can properly select, one example is entered below
Row explanation.
The cycling mechanism 8 of ink is made up of (Figure 20) master cylinder 201, secondary cylinder 202 and circulation stream 203 etc..In addition, Figure 20
It is the schematic diagram for illustrating the black circulation in ink-jet recording apparatus 200, the direction of the flowing of ink is indicated with arrow.
The ink for being used for supplying to secondary cylinder 202 is filled with master cylinder 201, secondary cylinder 202 is connected to using black stream.Moreover,
Such as the pressure by applications such as the pumps (omit and illustrate) by being used as pressure producing element, can be from master cylinder 201 to secondary cylinder 202
Supply ink.
The ink for being used for supplying to ink gun 100 is filled with secondary cylinder 202, ink gun 100 is connected to using black stream
First black port 53.Moreover, the pressure of the application such as by the pump (omit and illustrate) as being used as pressure producing element, can
From secondary cylinder 202 ink is supplied to ink gun 100.In addition, secondary cylinder 202 has gas-liquid separating function, can be from the ink for being filled in inside
Middle separation bubble.
Here, from the ink of the secondary ink gun 100 of cylinder 202 supply, flowed into respectively via the first black port 53 and black storage part 51
Balancing gate pit 13A.In other words, in the present embodiment, the first black port 53 and black storage part 51 are used as from the balancing gate pit
The stream that 13A upstream side supplies ink for multiple balancing gate pit 13A plays function.In addition, as described, to balancing gate pit 13A
Driving electrodes 14 apply voltage so that the next door partial dislocation between adjacent balancing gate pit 13A, pressure is projected from nozzle 11a
Ink in the 13A of room.
In addition, the ink in each balancing gate pit 13A together with bubble except in addition to nozzle 11a injections, passing through as described
After flowing into common flow path 19 by independent communication stream 18, via discharge duct 13B, discharge 57 and the 4th black end of liquid room
Mouth 56 is discharged to the outside of ink gun 100.In other words, in the present embodiment, discharge duct 13B, discharge with liquid room 57 with
And the 4th black port 56 as from common flow path 19 to the outer row of ink gun 100 stream out of ink play function.
It is connected with the 4th black port 56 of ink gun 100 and enters the ink discharged from the 4th black port 56 to secondary cylinder 202
The circulation stream 203 of row supply.Moreover, it is supplied to secondary cylinder 202 from the ink that the 4th black port 56 is discharged via circulation stream 203
Afterwards, it is used again with bubble separation.
[technique effect of the invention]
As described above, ink gun 100 of the invention is a kind of ink gun 100, to possess formed with nozzle 11a's
Nozzle layer 11, it is laminated in the nozzle layer 11 and formed with multiple balancing gate pit 13A balancing gate pit's layer 12, wherein, have：It is multiple only
Vertical connection stream 18, its be formed at nozzle layer 11 towards the part of balancing gate pit's layer 12 and balancing gate pit's layer 12 towards nozzle
At least one party of the part of layer 11, connects, and be capable of discharge pressure room 13A ink with each of multiple balancing gate pit 13A；Altogether
With stream 19, it is linked with multiple independent communication streams 18, collaborates for the ink discharged from multiple independent communication streams 18；Discharge
Stream 13B, it is connected with common flow path 19, can be out of ink to the outer row of balancing gate pit's layer 12 from common flow path 19, common flow path
The 19 restriction 19a for having the black direction discharged of direction and making the area of section of stream narrow, restriction 19a are connected to
Discharge duct 13B.If formed with restriction 19a, the flow velocity in common flow path 19 can be accelerated, therefore can make to share stream
The delay of sediment, bubble in the ink on road 19 is reduced.In addition, in small-sized ink gun 100, also can rightly apply
The restriction 19a of present invention composition, can be effectively discharged out bubble etc..
In addition, common flow path 19 is preferably at least located at the part towards nozzle layer 11 of balancing gate pit's layer 12.Thus,
The volume of the common flow path 19 for discharging ink can significantly be ensured, bubble etc. can be effectively discharged out.In addition, need not be
Setting common flow path 19 and increase miscellaneous part, can significantly ensure common flow path 19 so that the method for miniaturization can be achieved
Volume.In addition, by setting the larger common flow path 19 of volume, by increasing capacitance it is possible to increase the black internal circulating load in head chip 1, therefore
The radiating of wardrobe chip 1 can effectively be entered.
In addition, the width in the black injection direction (above-below direction) of common flow path 19 is bigger than the thickness of nozzle layer 11, thus
Compared to only when nozzle layer 11 sets common flow path 19, the volume of stream can be increased.
In addition, restriction 19a be preferably be located at it is in common flow path 19, than located at the end in direction that ink is discharged
Independent communication stream 18a it is more outward.Thus, near provided with independent communication stream 18, black flow velocity is difficult to change,
Therefore it can reduce and the influence that the flow velocity of ink is brought to the injection of ink is improved in common flow path 19.
In addition, restriction 19a is preferably formed as gradually decreasing area of section towards the direction that ink is discharged.Thus,
It is difficult to the wall for being hung on common flow path 19, therefore efficiently can discharges the sediment in ink, bubble together with ink.
In addition, discharge duct 13B is preferable to discharge from common flow path 19 towards the side opposite with nozzle layer 11
The stream of ink, discharge duct 13B area of section are bigger than the maximum cross-section area in common flow path.Thereby, it is possible to reduce a core
The overall flow path resistance of piece 1, improve the expulsion efficiency of ink.
In addition, common flow path 19 is preferably linear stream.Thereby, it is possible to efficiently by the sediment in ink, gas
Bubble is effectively discharged out together with ink.
In addition, common flow path 19 preferably seals the end of at least one party of the end of stream using restriction 19a.By
This, only can just be sealed common flow path 19 by the engagement of nozzle layer 11 and balancing gate pit's layer 12.
In addition, the end of at least one party by using the long side direction (left and right directions) of the head chip 1 in common flow path 19
Portion part sets seal member 12c composition, when forming common flow path 19, can be through to the long side side of common flow path 19
To side surface part manufacture, therefore can be manufactured in the higher method of manufacture efficiency.
In addition, the top by the way that manifold 5 to be located to balancing gate pit 13A, can be in balancing gate pit 13A upper-part centralized so as to turn into
The composition of the middle supply and discharge for carrying out ink, therefore can minimize further ink gun 100.
In addition, by the ink gun 100 that is set to possess present embodiment, for producing from balancing gate pit 13A to independent communication
The ink-jet recording apparatus 200 of the black circulating member of the recycle stream of stream 18, can turn into can will be present in balancing gate pit 13A, spray
Bubble near mouth 11a etc. is together with ink to the outside ink-jet recording apparatus 200 discharged of ink gun 100.
Additionally, it is preferable that form common flow path 19 by making cutter be moved along balancing gate pit's layer.Additionally, it is preferred that
Be, when forming common flow path 19, make cutter relative to thickness direction shoal it is mobile, so as to being formed in common flow path 19
Restriction 19a.By using the method for cutter, common flow path 19 and restriction easily can be formed with high accuracy
19a。
[other]
Embodiment on present invention mentioned above, it is considered that in terms of whole all for illustrate not be to limit.
That is, by claims, not described explanation is shown the scope of the present invention, it is intended to encompass the equivalent meaning with claims
And whole changes in scope.
For example, as ink-jet recording apparatus 200, illustrate to describe the ink-jet of mode using 1 paths of ink jet head
Ink-jet recording apparatus 200 of the tape deck 200 but it is also possible to be scan mode.
In addition, though illustrate that the nozzle of a chip 1 is classified as the embodiment of 2 row, but nozzle 11a columns, configuration energy
It is enough suitably to change, for example, it may be more than 1 row or 3 row.
In addition, though be set to be provided with two discharge duct 13B composition on the right side of balancing gate pit's layer 12, but can also be only
Link a discharge duct.Alternatively, it is also possible to be set to not only set discharge duct 13B composition in left side on right side, also.
In addition, though the cycling mechanism 8 of ink is illustrated using Figure 20, but as long as can produce from balancing gate pit 13A to independence
Connect the recycle stream of stream 18 and discharge outside of the ink in balancing gate pit 13A from discharge duct 13B to head chip, then can
Suitably change is formed.
In addition, as head unit 224, illustrate that diverse location in the longitudinal direction is configured with along front and rear with staggered
The head unit 224 of the group of a pair of ink guns 100 of direction adjoining, but the collocation method of ink gun 100 can be changed suitably.
In addition, as shown in Figure 12 etc., show that restriction 19a makes area of section gradual towards the direction that ink is discharged
The example to diminish, but as long as making area of section diminish towards the direction emitted by ink, for example, it is also possible to by upper surface portion
Be formed as step-like.
In addition, though illustrate the top and bottom opening of balancing gate pit 13A and discharge duct 13B in head chip of a chip 1
Straight type, but may also be head chip 1 lower surface opening and set upward and bend and in head chip 1
The shape of lateral opening.
Claims (13)
1. a kind of ink gun, possesses：
Nozzle layer, it is formed with the multiple nozzles for projecting ink；
Balancing gate pit's layer, it is laminated in the nozzle layer, and formed with being respectively communicated with multiple nozzles, to for from the plurality of nozzle
Multiple balancing gate pits that the ink of injection is stored,
By applying pressure to the balancing gate pit to project ink, the ink gun is characterised by having：
Multiple independent communication streams, its be formed at the nozzle layer towards the part of balancing gate pit's layer and the balancing gate pit
At least one party of the part towards the nozzle layer of layer, connects with each of multiple balancing gate pits, can discharge described
The ink of balancing gate pit；
Common flow path, it links with multiple independent communication streams, for being closed from the ink of multiple independent communication stream discharges
Stream；
Discharge duct, it is connected with the common flow path, can be out of ink to the outer row of balancing gate pit's layer from the common flow path,
The restriction that the common flow path has the black direction discharged of direction and makes the area of section of stream narrow, the restriction
It is connected to the discharge duct.
2. ink gun according to claim 1, it is characterised in that
The common flow path is at least located at the part towards the nozzle layer of balancing gate pit's layer.
3. ink gun according to claim 2, it is characterised in that
The width in the black injection direction of the common flow path is bigger than the thickness of the nozzle layer.
4. ink gun according to any one of claim 1 to 3, it is characterised in that
The restriction be located at it is in the common flow path, independently connect than the described of end located at the direction that the ink is discharged
The position of through-flow road in the outer part.
5. ink gun according to any one of claim 1 to 4, it is characterised in that
The restriction is formed as, and tapers into area of section towards the direction that the ink is discharged.
6. ink gun according to any one of claim 1 to 5, it is characterised in that
The discharge duct is that the stream of ink can be discharged from the common flow path towards the side opposite with the nozzle layer,
The area of section of the discharge duct is bigger than the maximum cross-section area in the common flow path.
7. ink gun according to any one of claim 1 to 6, it is characterised in that
The common flow path is linear stream.
8. ink gun according to any one of claim 1 to 7, it is characterised in that
The common flow path seals at least one end of stream using the restriction.
9. ink gun according to any one of claim 1 to 7, it is characterised in that
The seal member for being used for sealing the common flow path is provided with least one end of the common flow path.
10. ink gun according to any one of claim 1 to 9, it is characterised in that
Possess the black manifold internally stored to multiple balancing gate pit's supplies,
The manifold is located at the top of the balancing gate pit.
11. a kind of ink-jet recording apparatus, it is characterised in that possess：
Ink gun any one of claim 1 to 10；
For producing the black circulating member of the recycle stream circulated from the balancing gate pit to the independent communication stream.
12. a kind of manufacture method of ink gun, the ink gun any one of manufacturing claims 1 to 10, it is characterised in that
By making cutter be moved along balancing gate pit's layer to form the common flow path.
13. the manufacture method of ink gun according to claim 12, it is characterised in that
When forming the common flow path, make the cutter relative to thickness direction shoal it is mobile, so as to it is described share
Stream forms the restriction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-181144 | 2016-09-16 | ||
| JP2016181144A JP6686815B2 (en) | 2016-09-16 | 2016-09-16 | INKJET HEAD, INKJET RECORDING DEVICE, AND INKJET HEAD MANUFACTURING METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107825850A true CN107825850A (en) | 2018-03-23 |
| CN107825850B CN107825850B (en) | 2020-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826343.7A Active CN107825850B (en) | 2016-09-16 | 2017-09-14 | Ink jet head, ink jet recording apparatus, and method of manufacturing ink jet head |
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| Country | Link |
|---|---|
| JP (1) | JP6686815B2 (en) |
| CN (1) | CN107825850B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7087701B2 (en) * | 2018-06-13 | 2022-06-21 | コニカミノルタ株式会社 | Inkjet head and inkjet recording device |
| US11390078B2 (en) * | 2018-08-29 | 2022-07-19 | Konica Minolta, Inc. | Inkjet head and inkjet recording apparatus |
| CN116096579A (en) * | 2020-09-09 | 2023-05-09 | 柯尼卡美能达株式会社 | Ink jet head, method of manufacturing ink jet head, and ink jet recording apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2018043452A (en) | 2018-03-22 |
| JP6686815B2 (en) | 2020-04-22 |
| CN107825850B (en) | 2020-03-03 |
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