CN207772642U - Printing head and ink jet printing device - Google Patents
Printing head and ink jet printing device Download PDFInfo
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- CN207772642U CN207772642U CN201820006431.2U CN201820006431U CN207772642U CN 207772642 U CN207772642 U CN 207772642U CN 201820006431 U CN201820006431 U CN 201820006431U CN 207772642 U CN207772642 U CN 207772642U
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Abstract
The utility model discloses a kind of printing head and ink jet printing devices, belong to printing device field.The printing head includes：Pedestal；N number of print member, N >=2 are provided on pedestal；Each print member includes：Diversion trench group and multiple nozzles, diversion trench group include：Multiple diversion trenches, multiple diversion trenches and multiple nozzles correspond, and one end of each diversion trench is connected to corresponding nozzle；Wherein, the central point of all nozzles is respectively positioned on same with reference on straight line, the opening face of all nozzles is located at the bottom surface of pedestal, and any two diversion trench group may be contained in the different direction with reference to straight line in N number of print member, and the adjacent nozzle of any two is belonging respectively to two different print members.The diversion trench group of N number of print member is set in the different direction with reference to straight line, and the adjacent nozzle of any two is belonging respectively to two different print members, effectively reduces harassing between nozzle.The utility model is used for inkjet printing.
Description
Technical field
The utility model is related to printing device field, more particularly to a kind of printing head and ink jet printing device.
Background technology
Ink jet printing device is a kind of non-contact, without template, flexibility and low cost printing device, has manufacturing environment
Friendly and simple operation and other advantages, are widely used in recent years.And printing head is then mostly important in ink jet printing device
One component.
The usual printing head includes：Black storage chamber, multiple diversion trenches and multiple nozzles, multiple diversion trench and multiple sprays
Mouth corresponds, and one end of each diversion trench is connected to black storage chamber, and the other end is connected to a corresponding nozzle.
In order to improve print quality, the spray nozzle density for improving printing head is needed, still, the spray nozzle density of printing head is got over
Height is more susceptible between nozzle the problem of harassing.
Utility model content
This application provides a kind of printing head and ink jet printing devices, can solve existing inkjet print head and be easy out
The problem of harassing between existing nozzle.The technical solution is as follows：
In a first aspect, a kind of printing head is provided, including：
Pedestal；
N number of print member, N >=2 are provided on the pedestal；
Each the print member includes：Diversion trench group and multiple nozzles, the diversion trench group include：Multiple diversion trenches,
The multiple diversion trench and the multiple nozzle correspond, and the first end of each diversion trench connects with the corresponding nozzle
It is logical；
Wherein, the central point of all nozzles is respectively positioned on same reference straight line, the opening face position of all nozzles
Diversion trench group described in any two may be contained within described with reference to straight line in the bottom surface of the pedestal, N number of print member
In different direction, two adjacent nozzles of any two are belonging respectively to two different print members.
Optionally, the distance between adjacent described diversion trench of any two is equal in each print member.
Optionally, the distance between adjacent described nozzle of any two is equal.
Optionally, the distance between each two adjacent described nozzle a1 in all nozzles, with each printing
The distance between each two adjacent diversion trench in component a2 meets：
A2=N × a1.
Optionally, each print member has black storage chamber, the ink storage chamber and the corresponding print member
Each of the diversion trench second end connection.
Optionally, in each print member, barricade between each two adjacent diversion trench is towards black storage chamber
Dividing wall is provided on one side, the width of the dividing wall is less than the width of the barricade.
Optionally, N number of print member includes：At least one first print member,
For each first print member, the side away from the bottom surface of the pedestal of the diversion trench offers slot
Mouthful, it is provided with the first piezoelectric membrane on the notch.
Optionally, at least one first print member includes：At least two first print members,
At least two first print member is set at least side of reference planes；
The reference planes are vertical with the plane where the opening of all nozzles, and the reference straight line is in the ginseng
It examines in plane.
Optionally, at least one first print member includes：Two first print members, it is described two described
First print member is located at the both sides of the reference planes.
Optionally, each print member has a black storage chamber, the ink storage chamber in corresponding print member
The other end connection of each diversion trench,
N number of print member includes：At least one second print member,
For each second print member, the second piezoelectric membrane is provided on the ink storage chamber upper wall.
Optionally, N number of print member includes：One the second print member and two first print members, institute
The both sides that two first print members are located at the reference planes are stated,
For second print member, the second piezoelectric membrane is provided on the ink storage chamber upper wall.
Optionally, second print member is located at the top of described two first print members, and described second
The black storage chamber of print member is symmetrical about the reference planes, each of described first print member diversion trench
Extending direction it is parallel with the bottom surface of the pedestal, each of described second print member extending direction of the diversion trench with
The plane perpendicular of the pedestal.
Optionally, the extending direction of all black storage chambers is parallel, and all diversion trenches are along the extending direction
The both ends of arrangement, each black storage chamber are respectively the ink entrance and ink outlet port of the black storage chamber；
The pedestal has total ink entrance and total ink outlet port, the ink entrance and total ink entrance of all black storage chambers
The ink outlet port of connection, all black storage chambers is connected to total ink outlet port.
Optionally, the first public diversion trench and the second public diversion trench are additionally provided on the pedestal, all ink are deposited
The ink entrance of storage chamber is connected to by the described first public diversion trench with total ink entrance, the ink outlet port of all black storage chambers
It is connected to total ink outlet port by the described second public diversion trench.
Second aspect, provides a kind of ink jet printing device, and the ink jet printing device includes that first aspect is any described
Printing head.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The printing head and ink jet printing device that the utility model embodiment provides, due to the diversion trench of N number of print member
Group is set in the different direction with reference to straight line, and the adjacent nozzle of any two is belonging respectively to two different print members,
Therefore corresponding two diversion trenches of the adjacent nozzle of any two are belonging respectively in two diversion trench groups in different direction so that
Belong in the printing head between corresponding two nozzles of diversion trench that any two is adjacent in same print member and is additionally provided with
Belong to the nozzle of other print members.Therefore, the printing head provided in the utility model embodiment is beaten in the prior art
Print nozzle spray nozzle density it is identical under the premise of, the utility model embodiment provide printing head in belong to same print member
In the distance between two neighboring diversion trench it is larger, reduce harassing between nozzle, solve in the prior art in a nozzle
When due to piezoelectric material deformation ink-jet above diversion trench, the piezoelectric material of deformation influences whether to close on the piezoelectricity above diversion trench
The shape of material and cause to harass between nozzle, this harass can make to close on droplet volume that the nozzle of diversion trench connection sprays generate it is inclined
Difference, the problem of influencing print quality；Achieve the effect that improve print quality.Also, due to belonging to same in the printing head
The distance between two neighboring diversion trench is larger in print member, when piezoelectric membrane is pasted onto by glue on the groove face of diversion trench
When, the bonding area of piezoelectric membrane is larger, therefore effectively raises the service life and reliability of printing head.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Figure 1A is a kind of structural schematic diagram for printing head that the relevant technologies provide；
Figure 1B is the front view of the printing head shown in Figure 1A；
Fig. 2 is a kind of vertical view for printing head that the utility model embodiment provides；
Fig. 3 A are the vertical views for another printing head that the utility model embodiment provides；
Fig. 3 B are schematic cross-section of the printing head at A-A ' shown in Fig. 3 A；
Fig. 4 A are the vertical views for another printing head that the utility model embodiment provides；
Fig. 4 B are schematic cross-section of the printing head at A-A ' shown in Fig. 4 A；
Fig. 5 is the ink flow design sketch of the printing head shown in Fig. 3 A；
Fig. 6 is the ink flow design sketch of the printing head shown in Fig. 4 A.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
A is please referred to Fig.1, Figure 1A is a kind of structural schematic diagram for printing head that the relevant technologies provide, the printing head packet
Containing substrate 10, comprising black storage chamber 11 and multiple diversion trenches 12 in substrate 10, ink can enter ink from ink feed opening 11a and deposit
Storage chamber 11, and flowed out from opening 11b out of ink.Multiple diversion trench 12 is equidistantly arranged on the substrate 10, each diversion trench 12
One end is all connected to black storage chamber 11, and the other end is connected to nozzle 13.It is covered with protection above the groove face of all diversion trenches 12
Film and piezoelectric material (being not shown in Figure 1A), by control piezoelectric material deformation (due to piezoelectric material have inverse piezoelectric effect,
After applying voltage to piezoelectric material, it then will produce mechanical stress in piezoelectric material and deform upon, which changes diversion trench
Volume with complete blotting, ink-jet, retraction and again blotting this cycle process) can from black storage chamber 11 blotting and will
The ink of absorption is sprayed from corresponding nozzle, completes printing.
But when above-mentioned printing head is when nozzle is more, the distance between diversion trench is relatively close in substrate, in a nozzle
When due to piezoelectric material deformation ink-jet above diversion trench, the piezoelectric material of deformation influences whether to close on the piezoelectricity above diversion trench
The shape of material and harassing between causing nozzle, and this harass spray nozzle density higher (i.e. adjacent nozzle spacing is smaller) more
Seriously, this, which is harassed, can make to close on the droplet volume generation deviation that the nozzle of diversion trench connection sprays, and influence print quality.Example
, as shown in Figure 1B, Figure 1B is the front view of the printing head shown in Figure 1A, is covered with 14 He of protective film in substrate 10 successively
Piezoelectric material 15, if the piezoelectric material 15 being covered on diversion trench 12b is deformed upon B by control, due between each diversion trench
Away from smaller, the pressure that the piezoelectric material being covered on diversion trench 12a 15 deforms upon A, is covered on diversion trench 12c is influenced whether
Electric material 15 deforms upon C, and the deformation A and deformation C on piezoelectric material 15 can influence the ink that nozzle 13a and nozzle 13c spray
Drop volume.
Traditional printing head is susceptible between nozzle the problem of harassing, the prior art provides two when nozzle is more
Kind reduces the method harassed.The first：By changing nozzle segment into the construction of ink passage, segmentation is closed on adjacent the two of nozzle
A dividing wall is arranged to different length, that is, the diversion channel slot for closing on nozzle is different from the opening closing position that public groove connects,
To achieve the effect that harassing between reduction adjacent nozzle.Second：It is promoted to improve by the optimization on circuit signal and harasses effect
Generation, i.e., while first jet ink-jet, on nozzle adjacent thereto apply a corresponding Contrary compensation drive signal,
First jet harassing to adjacent nozzle is offset to reach.And the utility model proposes another to reduce the side harassed
Method.
In the prior art, printing head may include mainly piezoelectric type nozzle and bubble type nozzle, the utility model with
It is illustrated for piezoelectric type nozzle, correspondingly, the explanation that the structure of bubble type nozzle can be provided by the utility model is light
Be easy to get to, in practical application for printing nozzle can also there are many, the utility model does not repeat this.
The utility model embodiment provides a kind of printing head, is carried referring to FIG. 2, Fig. 2 is the utility model embodiment
A kind of vertical view of the printing head supplied, the printing head may include：
Pedestal 20.
N number of print member 21, N >=2 (Fig. 2 is by taking N=2 as an example), the N print member 21 are provided on the pedestal 20
May include print member 21a and print member 21b.
Each print member 21 may include：Diversion trench group (not marked in Fig. 2) and multiple nozzles 213, the diversion trench group
Including：Multiple diversion trenches 212.It should be noted that the diversion trench group in each print member is institute in corresponding print member
There are the set of diversion trench, the attached drawing in the utility model embodiment only to be marked to diversion trench, diversion trench group is not marked.
Multiple diversion trench 212 and multiple nozzles 213 correspond, the first end of each diversion trench 212 and corresponding spray
Mouth 213 is connected to.In practical application, each print member 21 has black storage chamber 211, the ink storage chamber 211 and corresponding printing
The second end connection of each diversion trench 212 in component 21, in the utility model embodiment, the ink in different print members is deposited
Storage chamber 211 can be connected to, can also be mutually isolated, and the utility model embodiment does not limit this.
Wherein, the central point of all nozzles 213 is respectively positioned on same with reference on straight line L, and the opening face of all nozzles 213 is located at
The bottom surface of pedestal 20, that is to say, the opening face of all nozzles 213 is coplanar, any two diversion trench group in N number of print member 21
It may be contained in the different direction with reference to straight line L, the adjacent nozzle 213 of any two is belonging respectively to two different print members
21。
In practical application, harassing between nozzle is that the distance between diversion trench is relatively close caused, as shown in Fig. 2, in this reality
In printing head with new embodiment offer, since any two diversion trench group in N number of print member 21 is set to reference
In the different direction of straight line L, for example, the diversion trench group in print member 21a is located at the right side with reference to straight line L, print member 21b
In diversion trench group be located at the left side with reference to straight line L, and the adjacent nozzle 213 of any two is belonging respectively to different two and beats
Component 21 is printed, for example, nozzle 213a belongs to print member 21a, nozzle 213b belongs to print member 21b, for the same printing
At least one nozzle is contained in component between two neighboring nozzle 213 and belongs to other print members, for example, print member
Nozzle 213a and nozzle 213c are adjacent in 21a, and the nozzle 213b for including between nozzle 213a and nozzle 213c belongs to print head
21b, thus it is identical as the spray nozzle density of printing head in the prior art in the printing head that the utility model embodiment provides
Under the premise of, the printing head of the utility model embodiment offer, which effectively increases, belongs to two neighboring in same print member
The distance between diversion trench 213.
In conclusion the printing head that the utility model embodiment provides, due to any two water conservancy diversion in N number of print member
Slot group is set in the different direction with reference to straight line, and the adjacent nozzle of any two is belonging respectively to two different printing portion
Part, therefore adjacent corresponding two diversion trenches of nozzle of any two are belonging respectively in two diversion trench groups in different direction,
So that belonging in the printing head between corresponding two nozzles of diversion trench that any two is adjacent in same print member
It is additionally provided with the nozzle for belonging to other print members.Therefore, the printing head provided in the utility model embodiment and existing skill
Under the premise of the spray nozzle density of printing head in art is identical, belong to same in the printing head that the utility model embodiment provides
The distance between two neighboring diversion trench is larger in print member, reduces harassing between nozzle, solves and exist in the prior art
When one nozzle is due to piezoelectric material deformation ink-jet above diversion trench, the piezoelectric material of deformation influences whether to close on diversion trench
Side piezoelectric material shape and cause to harass between nozzle, this harass can make to close on diversion trench connection nozzle spray ink droplet body
The problem of accumulating and generate deviation, influencing print quality；Achieve the effect that improve print quality.
In practical application, which may include：At least one first print member, and/or, N number of printing
Component may include：At least one second print member.The ink jet process of first print member is by being arranged in diversion trench
Groove face on piezoelectric membrane controlled, the ink jet process of second print member is by being arranged in black storage chamber
What piezoelectric membrane was controlled, the first print member is different from the set-up mode of the piezoelectric membrane of the second print member, therefore the
The structure of one print member is different from the structure of the second print member, and following embodiment introduces the structure of the first print member first
With the structure of the second print member, which type of print member then is particularly belonged to the N number of print member being arranged on pedestal
It illustrates.It should be noted that the material of the piezoelectric membrane in the utility model embodiment is piezoelectric material.
It is exemplary, A and Fig. 3 B are please referred to Fig.3, Fig. 3 A are another printing heads that the utility model embodiment provides
Vertical view, Fig. 3 B are schematic cross-section of the printing head at A-A ' shown in Fig. 3 A, which is on pedestal 20
It is arranged and illustrates for 3 print members 21, that is to say, N=3, wherein print member 21a and print member 21b is the
One print member, print member 21c are the second print member.It should be noted that the black storage chamber in the left side in Fig. 3 B
211 belong to the print member 21b in Fig. 3 A, and the black storage chamber 211 on the right side in Fig. 3 B belongs to the print member in Fig. 3 A
The black storage chamber 211 of 21a, the top in Fig. 3 B belong to the print member 21c in Fig. 3 A.For the printing head of Fig. 3 A,
Diversion trench group in print member 21a is located at the right side with reference to straight line L, and the diversion trench group in print member 21b is located at reference to straight
The left side of line L, the diversion trench group disclosure in print member 21c are located at the upside with reference to straight line L.
For each first print member：
For example, as shown in Fig. 3 A or Fig. 3 B, in print member 21a or print member 21b, the of each diversion trench 212
One end all has opening with second end, and the side away from the bottom surface of pedestal 20 of diversion trench 212 offers notch 2121, at this point,
There are three the faces of opening for the tool of diversion trench 212.It is provided with the first piezoelectric membrane on the notch 2121, that is to say, it can be in diversion trench 212
The top of groove face 2122 cover the first piezoelectric membrane.It, can in order to avoid the damage of the first piezoelectric membrane of ink pair in practical application
To be sequentially overlapped the first protective film of setting and the first piezoelectric membrane on notch 2121, first can be protected by the first protective film
Piezoelectric membrane.Under normal conditions, the extending direction of each diversion trench 212 in the first print member and the bottom surface of pedestal 20 are flat
Row.
For each second print member：
For example, as shown in Fig. 3 A or Fig. 3 B, in print member 21c, the first end and second end of each diversion trench 212 are equal
With opening, at this point, the face that is open there are two the tools of diversion trench 212, the second piezoelectric membrane is provided on 212 upper wall of black storage chamber.It is real
It, can be in 212 upper wall of black storage chamber along the side far from upper wall in order to avoid the damage of the second piezoelectric membrane of ink pair in the application of border
It is provided with the second piezoelectric membrane and the second protective film to being sequentially overlapped, the second piezoelectric membrane can be protected by the second protective film.
Under normal conditions, the plane perpendicular of the extending direction and pedestal 20 of each diversion trench 212 in the second print member, at this point, often
The second end of a diversion trench 212 is located at the surface of the first end of the diversion trench 212.
Further, since N number of print member may include：At least one first print member, and/or, at least one
A second print member, therefore, the print member being arranged on base station there are many can be achieved mode, the utility model embodiment with
It is schematically illustrated for lower three kinds of achievable modes：
It can only be set on base station in the printing head that the utility model embodiment provides in realization mode at the first
The first print member is set, at this point, N number of print member may include：At least two first print members, it is exemplary, please refer to figure
4A and Fig. 4 B, Fig. 4 A are the vertical views for another printing head that the utility model embodiment provides, and Fig. 4 B are that Fig. 4 A are shown
Schematic cross-section of the printing head at A-A ', at least side of at least two first print member setting and plane of reference S, should
Reference planes S is vertical with the opening face of all nozzles 213, which is the bottom surface of pedestal 21, also, all nozzles 213
Central point formed reference straight line L in reference planes S.The structure of each first print member can refer to above-mentioned implementation
Corresponding part in example, details are not described herein.It should be noted that the black storage chamber 211 in the left side in Fig. 4 B belongs to figure
The black storage chamber 211 of print member 21b in 4A, the right side in Fig. 4 B belong to the print member 21a in Fig. 4 A.For
The printing head of Fig. 4 A, the diversion trench group in print member 21a are located at the right side with reference to straight line L, the water conservancy diversion in print member 21b
Slot group is located at the left side with reference to straight line L.
In second of achievable mode, can only it be set on the base station in the printing head that the utility model embodiment provides
The second print member is set, at this point, N number of print member may include：At least two second print members.Each second print member
Structure can refer to above-described embodiment in corresponding part, details are not described herein.
It can both be set on base station in the printing head that the utility model embodiment provides in realization mode at the third
It is equipped with the first print member, the second print member can also be provided with, at this point, N number of print member may include：At least one
One print member and at least one second print member.The structure of each first print member and each second print member
Structure can refer to above-described embodiment in corresponding part, details are not described herein.
It can realize that mode, following embodiment enumerate the concrete structure of two kinds of printing heads in conjunction with above two：
The first structure as shown in Figure 4 A and 4 B shown in FIG., can be arranged two as N=2 on base station 20 in the printing head
Print member 21, which can be the first print member.Optionally, which distinguishes position
In the both sides of plane of reference S.
Second of structure as shown in Figure 3A and Figure 3B, can be arranged three as N=3 on base station 20 in the printing head
Print member 21, three print members 21 may include：Two the first print members are (for example, print member 21a and printing portion
Part 21b) and second print member (for example, print member 21c).Optionally, which is located at
The both sides of reference planes S, that is to say, print member 21a and print member 21b are located at the both sides of reference planes S；Second
Print member be located at can two the first print members top, that is to say, print member 21c is located at the top print member 21a,
And print member 21c is also located above print member 21b.Optionally, print member 21c (namely second print member)
Black storage chamber 211 it is symmetrical about reference planes S.
In the utility model embodiment, as shown in Figure 3A and 4A, any two is adjacent in each print member 21
The distance between diversion trench 212 a2 is equal, that is to say, that is to say that diversion trench 212 is equidistantly arranged in each print member 21.
The distance between the adjacent nozzle 213 of any two a1 is equal, that is to say that all nozzles 213 are equidistantly arranged in printing head.
At this point, the distance between each two adjacent nozzle a1 in all nozzles 213, adjacent with each two in each print member 21
The distance between diversion trench a2 meet：A2=N × a1.It should be noted that any two in the utility model embodiment
The distance between adjacent nozzle refers to the distance of the central point (i.e. geometric center point) of any two nozzle, each two adjacent
The distance between diversion trench refers to that the distance between plane of symmetry is preset in each two adjacent diversion trench, and the default plane of symmetry is vertical
In with reference to straight line.
It is exemplary, as N=2, as shown in Figure 4 A, a2=2 × a1；As N=3, as shown in Figure 3A, a2=2 × a1.
In the prior art, as shown in Figure 1B, the distance between each two adjacent nozzle 12 b2 with it is each two adjacent
The distance between diversion trench b1 meets：B2=b1.Also, the raising of the density with nozzle, each two adjacent diversion trench it
Between distance be also gradually reduced, since piezoelectric material is pasted onto on the groove face of diversion trench by glue, work as each two
When the distance between adjacent diversion trench is also gradually reduced, the bonding area of the piezoelectric material is smaller, and then affects printing spray
The service life and reliability of head.
And in the utility model embodiment, in the same print member, the distance between two adjacent diversion trenches
N times of the distance between two adjacent diversion trenches in the prior art can be increased to.At this point, for the first print member, when
When the first piezoelectric membrane is arranged on first print member, since first piezoelectric membrane is to be pasted onto diversion trench by glue
Groove face on, and the distance between two adjacent diversion trenches are larger, therefore effectively increase the viscous of the first piezoelectric membrane
Veneer accumulates, and then effectively raises the service life and reliability of printing head.
Optionally, as shown in Figure 3A and 4A, in each print member 21, between each two adjacent diversion trench 212
For barricade 214 towards dividing wall 215 is provided in the one side of black storage chamber 211, the width of the dividing wall 215 is less than barricade 214
Width.In practical application, when printing head works, (piezoelectric membrane can be in piezoelectric membrane for ink in diversion trench 212
For the first piezoelectric membrane in the first print member, or the second piezoelectric membrane in the second print member) under the action of
When reflux, that is to say, the ink in diversion trench 212 is moved to black storage chamber 211, in reflux course, two adjacent water conservancy diversion
It is likely to occur and harasses between slot 212, for example, when the ink in diversion trench 212a is moved to black storage chamber 211, diversion trench 212a
In ink may will produce water wave effect, the ripples that diversion trench 212a is generated can be moved to diversion trench 212b, similarly, diversion trench
Ink in 212b may also will produce water wave effect, and the ripples that diversion trench 212b is generated can move to diversion trench 212a, cause
Harass under the action of water wave effect between diversion trench 212a and diversion trench 212b, and then influences print quality.When two
Dividing wall 215 is set between a adjacent diversion trench 212, which can effectively weaken the ink in diversion trench 212b
Aquatic products unboiled water wave effect, and then effectively reduce harassing between two adjacent diversion trenches 212.
Optionally, as shown in Figure 3A and 4A, the extending direction x for all black storage chambers 211 being arranged on pedestal 20 is flat
The both ends of row, each ink storage chamber 211 are respectively the ink entrance 211a and ink outlet port 211b of black storage chamber；All diversion trenches 212
This arranges along extending direction x.The extending direction of diversion trench 212 in each print member 21 is parallel.
Optionally, as shown in Figure 3A and 4A, pedestal 20 has total ink entrance 22 and total ink outlet port 23, all ink storage chambers
211 ink entrance 211a is connected to total ink entrance 22, and the ink outlet port 211b of all ink storage chambers 211 is connected to 23 with total ink outlet port.
In the utility model embodiment, it is additionally provided with the first public diversion trench 24 and the second public diversion trench 25 on pedestal 20, owns
The ink entrance 211a of black storage chamber 211 is connected to by the first public diversion trench 24 with total ink entrance 23, all ink storage chambers 211
Ink outlet port 211b is connected to 24 connections by the second public diversion trench with 25 total ink outlet ports.
In the utility model embodiment, Fig. 5 and Fig. 6 are please referred to, Fig. 5 is the ink flow of the printing head shown in Fig. 3 A
Design sketch, Fig. 6 are the ink flow design sketch of the printing head shown in Fig. 4 A, and the flowing side that arrow shows ink may be used
To, and then can the clearer flow direction for describing printing head middle ink in ink jet process.
In conclusion the printing head that the utility model embodiment provides, since the diversion trench group of N number of print member is arranged
In in the different direction with reference to straight line, and the adjacent nozzle of any two is belonging respectively to two different print members, therefore appoints
Corresponding two diversion trenches of two adjacent nozzles of anticipating are belonging respectively in two diversion trench groups in different direction, so that should
Belong in printing head between corresponding two nozzles of diversion trench that any two is adjacent in same print member and is additionally provided with category
In the nozzle of other print members.Therefore, the printing head provided in the utility model embodiment and printing in the prior art
Under the premise of the spray nozzle density of nozzle is identical, belong in same print member in the printing head that the utility model embodiment provides
The distance between two neighboring diversion trench is larger, reduces harassing between nozzle, solve in the prior art a nozzle by
When piezoelectric material deformation ink-jet above diversion trench, the piezoelectric material of deformation influences whether to close on the piezoresistive material above diversion trench
The shape of material and cause to harass between nozzle, this harass can make to close on droplet volume that the nozzle of diversion trench connection sprays generate it is inclined
Difference, the problem of influencing print quality；Achieve the effect that improve print quality.Also, due to belonging to same in the printing head
The distance between two neighboring diversion trench is larger in print member, when piezoelectric membrane is pasted onto by glue on the groove face of diversion trench
When, the bonding area of piezoelectric membrane is larger, therefore effectively raises the service life and reliability of printing head.
The utility model embodiment additionally provides a kind of ink jet printing device, which may include：Fig. 2,
Printing head shown in Fig. 3 A or Fig. 4 A.In practical application, which can also include：Carry base station, the carrying
Base station can carry out inkjet printing for carrying underlay substrate, printing head to the underlay substrate on carrying base station.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (15)
1. a kind of printing head, which is characterized in that including：
Pedestal；
N number of print member, N >=2 are provided on the pedestal；
Each print member includes diversion trench group and multiple nozzles, and the diversion trench group includes：Multiple diversion trenches are described more
A diversion trench and the multiple nozzle correspond, and the first end of each diversion trench is connected to the corresponding nozzle；
Wherein, the central point of all nozzles is respectively positioned on same with reference on straight line, and the opening face of all nozzles is located at institute
State the bottom surface of pedestal, diversion trench group described in any two may be contained within the difference with reference to straight line in N number of print member
In orientation, the adjacent nozzle of any two is belonging respectively to two different print members.
2. printing head according to claim 1, which is characterized in that
The distance between adjacent described diversion trench of any two is equal in each print member.
3. printing head according to claim 2, which is characterized in that
The distance between the adjacent nozzle of any two is equal.
4. printing head according to claim 3, which is characterized in that
In all nozzles in the distance between each two adjacent described nozzle a1, with each print member every two
The distance between a adjacent diversion trench a2 meets：
A2=N × a1.
5. printing head according to any one of claims 1 to 4, which is characterized in that
Each print member has black storage chamber, the ink storage chamber and each of the corresponding print member described
The second end of diversion trench is connected to.
6. printing head according to claim 5, which is characterized in that
In each print member, the one side of barricade between each two adjacent diversion trench towards the black storage chamber
On be provided with dividing wall, the width of the dividing wall is less than the width of the barricade.
7. printing head according to claim 5, which is characterized in that
N number of print member includes：At least one first print member,
For each first print member, the side away from the bottom surface of the pedestal of the diversion trench offers notch,
The first piezoelectric membrane is provided on the notch.
8. printing head according to claim 7, which is characterized in that
At least one first print member includes：At least two first print members,
At least two first print member is set at least side of reference planes；
The reference planes are vertical with the plane where the opening of all nozzles, and described flat in the reference with reference to straight line
In face.
9. printing head according to claim 8, which is characterized in that
At least one first print member includes：Two first print members, described two first printing portion
Part is located at the both sides of the reference planes.
10. printing head according to claim 5, which is characterized in that
N number of print member includes：At least one second print member,
For each second print member, the second piezoelectric membrane is provided on the ink storage chamber upper wall.
11. printing head according to claim 8, which is characterized in that
N number of print member includes：One the second print member and two first print members, described two described
One print member is located at the both sides of the reference planes,
For second print member, the second piezoelectric membrane is provided on the ink storage chamber upper wall.
12. printing head according to claim 11, which is characterized in that
Second print member is located at the top of described two first print members, and the institute of second print member
State that black storage chamber is symmetrical about the reference planes, each of described first print member extending direction of the diversion trench with
The bottom surface of the pedestal is parallel, the bottom of each of described second print member extending direction of the diversion trench and the pedestal
Face is vertical.
13. printing head according to claim 5, which is characterized in that
The extending direction of all black storage chambers is parallel, and all diversion trenches are arranged along the extending direction, Mei Gesuo
The both ends for stating black storage chamber are respectively the ink entrance and ink outlet port of the black storage chamber；
There is the pedestal total ink entrance and total ink outlet port, the ink entrance of all black storage chambers to connect with total ink entrance
Logical, the ink outlet port of all black storage chambers is connected to total ink outlet port.
14. printing head according to claim 13, which is characterized in that
The first public diversion trench and the second public diversion trench, the ink entrance of all black storage chambers are additionally provided on the pedestal
It is connected to total ink entrance by the described first public diversion trench, the ink outlet port of all black storage chambers passes through described second
Public diversion trench is connected to total ink outlet port.
15. a kind of ink jet printing device, which is characterized in that the ink jet printing device includes that claim 1 to 14 is any described
Printing head.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006431.2U CN207772642U (en) | 2018-01-03 | 2018-01-03 | Printing head and ink jet printing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006431.2U CN207772642U (en) | 2018-01-03 | 2018-01-03 | Printing head and ink jet printing device |
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| CN207772642U true CN207772642U (en) | 2018-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099409A (en) * | 2018-01-03 | 2018-06-01 | 京东方科技集团股份有限公司 | Printing head and ink jet printing device |
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2018
- 2018-01-03 CN CN201820006431.2U patent/CN207772642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099409A (en) * | 2018-01-03 | 2018-06-01 | 京东方科技集团股份有限公司 | Printing head and ink jet printing device |
| CN108099409B (en) * | 2018-01-03 | 2023-12-22 | 京东方科技集团股份有限公司 | Printing nozzle and ink jet printing apparatus |
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