CN110497699A - A kind of printing ink-feeding device - Google Patents
A kind of printing ink-feeding device Download PDFInfo
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- CN110497699A CN110497699A CN201910699007.XA CN201910699007A CN110497699A CN 110497699 A CN110497699 A CN 110497699A CN 201910699007 A CN201910699007 A CN 201910699007A CN 110497699 A CN110497699 A CN 110497699A
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- Prior art keywords
- ink
- pressure
- oil
- external
- tank
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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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
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- Ink Jet (AREA)
Abstract
The present invention provides a kind of printing ink-feeding devices, it include: ink tank, external pneumatic shuttle at the top of ink tank, the ink pot bottom passes through the external pressure balance mechanism of ink external pipeline, the pressure balance mechanism includes adjusting tank, is equipped with elastic deformation plate in the adjusting tank；Adjusting tank is separated into the pressure regulating cavity and movable chamber of sealing by the elastic deformation plate, and the movable chamber is provided with shaft, the external rotary electric machine of shaft；The eccentric wheel of strip is housed, the rotation of eccentric wheel is for driving elastic deformation plate to lower recess, ink in squeeze pressure adjusting cavity in the shaft；The also external discharging pipeline of the pressure regulating cavity.The present invention uses pressure balance mechanism, avoids gas from being directly entered ink supply circulation line as gradually exhausting in liquid in ink reservoir, pressure balance mechanism provides the pressure of an oil inlet oil circuit to ink tank bottom by machine power so that generating one in pipeline；Avoiding maloperation makes entire ink supply pipeline paralyse.
Description
Technical field
The present invention relates to printing ink-feeding device fields, and in particular to printing ink-feeding device.
Background technique
Currently, digital printing is the printing technology of high speed development in recent years, uses and data are directly inputted, handle and are printed
The working method of brush, and ink jet printing is a branch in digital printing, the ink-jet printing apparatus of existing many manufacturers uses
Be piezoelectric type spray head (also referred to as print nozzles) technology.Ink-jet printing apparatus is during actually printing, in order to guarantee to beat
Print quality, it is undesirable to which ink forms small ink droplet on the surface of print nozzles, and is desirable to ink and is formed on the surface of print nozzles
One liquid level fallen in, i.e. meniscus, because the formation of meniscus ensure that print nozzles only just have ink in compression
Drop projects, so that the ink droplet not had outside expectation on printed medium (such as paper) occurs, ensure that the cleaning of printed medium, mentions
The quality of printing is risen.Simultaneously as the shape of print nozzles surface meniscus also will affect, ink-jet printing apparatus is final to be beaten
Quality is printed, therefore also has higher requirement to the shape of meniscus.In order to guarantee that meniscus can be formed well, often to negative
The ink feeding system for blaming providing ink proposes very high requirement, and ink feeding system is most important part in entire ink-jet printing system
One of.
The Chinese invention patent document of Publication No. CN104290455B discloses a kind of ink-feeding device and print nozzles table
The forming method of face meniscus comprising: including oil plant tank, print nozzles and it is connected between oil plant tank and print nozzles
Ink tube, wherein the ink-feeding device further includes air pressure feed unit, is used to provide stable air pressure for oil plant tank and can adjust
Atmospheric pressure value in fuel-economizing batch can, to guarantee that ink is supplied via ink tube to print nozzles from oil plant tank, in the oil plant tank
Liquid level is lower than the liquid level in print nozzles, to guarantee that the surface of print nozzles forms meniscus.Correspondingly, a kind of above-mentioned confession is provided
The forming method of print nozzles surface meniscus in black device.The present invention adjusts the curved liquid of print head using air pressure feed unit
Face；As oil plant pot liquid gradually exhausts, gas is easily accessible ink supply pipeline, and entire ink supply pipeline is caused to be paralysed.
Summary of the invention
The purpose of the present invention is to provide a kind of printing ink-feeding devices to solve existing print by pressure balance mechanism
Brush ink-feeding device is gradually exhausted with oil plant pot liquid, and gas is easily accessible ink supply pipeline, and leads to entire ink supply pipeline paralysis
The defect of paralysis.
To achieve the above object, the present invention adopts the following technical scheme that realization:
The present invention provides a kind of printing ink-feeding devices, comprising: ink tank, the external pneumatic shuttle in ink tank top are described
For ink pot bottom by the external pressure balance mechanism of ink external pipeline, the pressure balance mechanism includes adjusting tank, the tune
It saves and is equipped with elastic deformation plate in tank, the elastic deformation plate has the ability for replying original shape in the case where losing pressure condition；It is described
Elastic deformation plate will adjust tank and be separated into the pressure regulating cavity and movable chamber of sealing, and the movable chamber is provided with shaft, and described turn
The external rotary electric machine of axis；The eccentric wheel of strip is housed, the rotation of eccentric wheel is for driving elastic deformation plate in the shaft
To lower recess, ink in squeeze pressure adjusting cavity；The also external oil outlet pipe of the pressure regulating cavity.The present invention uses pressure balance
Mechanism, so that generating one in pipeline, by machine power, there are three effects, first point, for compensating pressure in oil circuit, adjusts
The oil circuit pressure (the in particular to pressure of print nozzles) of output；Second point, as oil plant pot liquid gradually exhausts, pressure is flat
The mechanism that weighs provides the pressure of an oil inlet oil circuit to ink tank bottom, and gas is avoided to be directly entered ink supply circulation line；It avoids
Maloperation makes entire ink supply pipeline paralyse.Thirdly, when airline pressure is smaller, or gas path device is closed；As eccentric wheel is transported
Dynamic, elastic deformation plate replys original shape, so that the liquid reflux of nozzle end, so that spray head is avoided to have liquid to ooze downwards.
Optionally, the pneumatic shuttle includes air inlet pipeline, air pump and gas tank, and the air inlet pipeline end connects gas tank,
The air pump is mounted on air inlet pipeline.
Optionally, air pressure regulator is housed on the air inlet pipeline.The present invention uses air pressure regulator, it may be necessary to adjust
Save pressure in air inlet pipeline.
Optionally, the external return line in oil outlet pipe end, the external pressure regulating cavity top of return line.This
The return line of invention is connected to pressure regulating cavity, and gas circuit is avoided in ink tank to enter ink circulation line via return line, and
Using ink circulation line, has and utilize the gas or waste residue excluded at spray head.
Optionally, the junction of the oil outlet pipe and return line is equipped with oil pressure adjusting valve.
Optionally, printing ink-feeding device further includes control unit, and described control unit typical case connects air pressure regulator, oil pressure
Regulating valve and rotary electric machine；Described control unit is used for control pressure regulating valve, the output pressure of oil pressure adjusting valve and rotation
Motor opens or closes.Printing ink-feeding device of the invention is used for control pressure regulating valve and oil pressure tune by control unit
The output pressure of valve is saved, cooperates rotary electric machine to control the output pressure of pressure balance mechanism.
Optionally, external multiple spray heads in the oil outlet pipe.
Optionally, a side external surface of axis of the eccentric wheel far from shaft is recessed inwardly to form adjustment chamber, the tune
It is whole intracavitary equipped with outer support member；The outer support member is close to adjustment chamber, so that adjustment chamber is closed space, the adjustment is intracavitary to be equipped with
Hydraulic oil is equipped with tension spring between the outer support member and the inner face for adjusting chamber, the tension spring is for providing so that outer
Pulling force of the support member to contract.Using that can use telescopic outer support member, the downward maximum of adjustable eccentric wheel pushes the present invention
Distance.
Optionally, the ink tank rear end is equipped with oil inlet pipe；The shaft is equipped with input oil groove far from the side of rotary electric machine,
It adjusts chamber and input oil groove is connected to by transfer tube；The input oil groove end is circumscribed with oil inlet pipe, pacifies between the oil inlet pipe and shaft
Equipped with hydraulic rotary joint, oil pump is housed on the oil inlet pipe, the oil inlet pipe end is connected with oil tank.
Optionally, sliding slot is equipped on the inner sidewall up and down of the adjustment chamber, on the lateral wall up and down of the outer support member
Limited block equipped with the bottom surface for being inserted into sliding slot and being tightly attached to sliding slot, the limited block for sliding along the chute.
Compared with prior art, the beneficial effects of the present invention are:
The present invention uses pressure balance mechanism, so that generating one in pipeline, by machine power, there are three effects, and first
Point adjusts the oil circuit pressure (the in particular to pressure of print nozzles) of output for compensating pressure in oil circuit；Second point, with
Oil plant pot liquid gradually exhausts, and pressure balance mechanism provides the pressure of an oil circuit to ink tank bottom, avoids gas direct
Into ink supply circulation line；Avoiding maloperation makes entire ink supply pipeline paralyse.Thirdly, it when airline pressure is smaller, or closes
Close gas path device；With wobbler action, elastic deformation plate replys original shape, so that the liquid reflux of nozzle end, so that avoiding
Spray head has liquid to ooze downwards.
Detailed description of the invention
Fig. 1 is the whole structural schematic diagram that the embodiment of the present invention 1 prints ink-feeding device；
Fig. 2 is the structural schematic diagram for the pressure balance mechanism that the embodiment of the present invention 1 prints ink-feeding device；
Fig. 3 is the structural schematic diagram for the eccentric wheel that the embodiment of the present invention 1 prints ink-feeding device；
Fig. 4 is the flow diagram for the control unit that the embodiment of the present invention 1 prints ink-feeding device.
1, ink tank, 2, control unit, 3, pressure balance mechanism, 4, adjusting tank, 5, elastic deformation plate, 6, pressure adjusting
Chamber, 7, movable chamber, 8, shaft, 9, rotary electric machine, 10, eccentric wheel, 11, air inlet pipeline, 12, air pump, 13, gas tank, 14, air pressure tune
Section valve, 15, return line, 16, oil pressure adjusting valve, 17, adjustment chamber, 18, outer support member, 19, tension spring, 20, oil inlet pipe, 21,
Input oil groove, 22, hydraulic rotary joint, 23, oil pump, 24, oil tank, 25, sliding slot, 26, limited block, 27, spray head, 28, oil outlet pipe,
29, transfer tube, 30, ink external pipeline.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, below by accompanying drawings and embodiments, to this
Invention is further elaborated.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention,
The range being not intended to restrict the invention.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to keep away
Exempt from unnecessarily to obscure idea of the invention.
In the description of the present invention, it should be noted that for the noun of locality, as term " on ", "lower", "left", "right",
The indicating positions such as " axial direction ", " radial direction ", "vertical" and positional relationship are orientation based on the figure and positional relationship, be only for
Convenient for the narration present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and is operated with particular orientation, should not be understood as limiting specific protection scope of the invention.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " several " are meant that two or more, unless otherwise clearly having
The restriction of body.
In invention, except as otherwise clear stipulaties and restriction, if any term " assembling ", " connected ", " connection " term, just make wide
Justice goes to understand, for example, it may be fixedly connected, may be a detachable connection or integrally connected；It is also possible to be mechanically connected；
It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.It is general for this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention provides a kind of printing ink-feeding devices, comprising: ink tank 1 and control
Unit 2 processed, the external pneumatic shuttle in ink tank top, the ink pot bottom pass through the external pressure balance machine of ink external pipeline 30
Structure 3, the pressure balance mechanism include adjusting tank 4, are equipped with elastic deformation plate 5 in the adjusting tank, the elastic deformation plate exists
It loses under pressure condition, there is the ability for replying original shape；Adjusting tank is separated into the pressure tune of sealing by the elastic deformation plate
Section chamber 6 and movable chamber 7, the movable chamber are provided with shaft 8, the external rotary electric machine 9 of shaft；Strip is housed in the shaft
The eccentric wheel 10 of shape, the rotation of eccentric wheel is for driving elastic deformation plate to lower recess, ink in squeeze pressure adjusting cavity；Institute
State the also external oil outlet pipe 28 of pressure regulating cavity.The control unit of the present embodiment uses PLC (programmable logic controller (PLC)).It is described
Ink external pipeline is attended class equipped with folding control valve.
The pneumatic shuttle includes air inlet pipeline 11, air pump 12 and gas tank 13, and the air inlet pipeline end connects gas tank, institute
Air pump is stated to be mounted on air inlet pipeline.Air pressure regulator 14 is housed on the air inlet pipeline.The present invention uses air pressure regulator, must
Pressure in adjustable air inlet pipeline when wanting.
The external return line 15 in oil outlet pipe end, the external pressure regulating cavity top of return line.The present invention
Return line be connected to pressure regulating cavity, avoid in ink tank gas circuit from entering ink circulation line via return line, and use
Ink circulation line has and utilizes the gas or waste residue excluded at spray head.The junction of the oil outlet pipe and return line is set
There is oil pressure adjusting valve 16.Described control unit typical case connects air pressure regulator, oil pressure adjusting valve and rotary electric machine；The control is single
Member is opened or closed for control pressure regulating valve, the output pressure of oil pressure adjusting valve and rotary electric machine.The flowline
External multiple spray heads 27 on the road.
One side external surface of axis of the eccentric wheel far from shaft is recessed inwardly to form adjustment chamber 17, and the adjustment is intracavitary
Equipped with outer support member 18；The outer support member abutting adjustment chamber, so that adjustment chamber is closed space, the adjustment is intracavitary equipped with hydraulic
Oil is equipped with tension spring 19 between the outer support member and the inner face for adjusting chamber, the tension spring is for providing so that outer support
Pulling force of the part to contract.
The shaft is equipped with input oil groove 21 far from the side of rotary electric machine, and whole chamber is connected to input oil groove by transfer tube 29；Institute
It states input oil groove end and is circumscribed with oil inlet pipe 20, hydraulic rotary joint 22, the oil inlet are installed between the oil inlet pipe and shaft
Oil pump 23 is housed, the oil inlet pipe end is connected with oil tank 24 on pipe.
It is equipped with sliding slot 25 on the inner sidewall up and down of the adjustment chamber, is respectively arranged on the lateral wall up and down of the outer support member slotting
Enter in sliding slot and be tightly attached to the limited block 26 of the bottom surface of sliding slot, the limited block for sliding along the chute.
When the present embodiment is implemented, control unit controls rotary electric machine, and drive shaft rotation, pushes and then elastic deformation plate becomes
Shape, so that generating one in pipeline, by machine power, there are three effects, first point, for compensating pressure in oil circuit, adjusts defeated
Oil circuit pressure (the in particular to pressure of print nozzles) out；Second point, as oil plant pot liquid gradually exhausts, pressure balance
Mechanism provides the pressure of an oil circuit to ink tank bottom, and gas is avoided to be directly entered ink supply circulation line；Avoid maloperation
So that entire ink supply pipeline paralysis.Thirdly, when airline pressure is smaller, or gas path device is closed；With wobbler action, elasticity
Deformation plate replys original shape, so that the liquid reflux of nozzle end, so that spray head is avoided to have liquid to ooze downwards.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of printing ink-feeding device characterized by comprising ink tank, the external pneumatic shuttle in ink tank top, the ink
For pot bottom by the external pressure balance mechanism of ink external pipeline, the pressure balance mechanism includes adjusting tank, the adjusting tank
Interior to be equipped with elastic deformation plate, the elastic deformation plate has the ability for replying original shape in the case where losing pressure condition；The elasticity
Deformation plate will adjust tank and be separated into the pressure regulating cavity and movable chamber of sealing, and the movable chamber is provided with shaft, outside the shaft
Connect rotary electric machine；The eccentric wheel of strip is housed, the rotation of eccentric wheel is for driving elastic deformation plate downward in the shaft
It is recessed, ink in squeeze pressure adjusting cavity；The also external oil outlet pipe of the pressure regulating cavity.
2. printing ink-feeding device as described in claim 1, which is characterized in that the pneumatic shuttle includes air inlet pipeline, air pump
And gas tank, the air inlet pipeline end connect gas tank, the air pump is mounted on air inlet pipeline.
3. printing ink-feeding device as claimed in claim 2, which is characterized in that air pressure regulator is housed on the air inlet pipeline.
4. printing ink-feeding device as claimed in claim 3, which is characterized in that the external return line in oil outlet pipe end,
The external pressure regulating cavity top of return line.
5. printing ink-feeding device as claimed in claim 4, which is characterized in that the junction of the oil outlet pipe and return line
Equipped with oil pressure adjusting valve.
6. printing ink-feeding device as claimed in claim 5, which is characterized in that further include control unit, described control unit allusion quotation
Type connects air pressure regulator, oil pressure adjusting valve and rotary electric machine；Described control unit is adjusted for control pressure regulating valve, oil pressure
The output pressure of valve and opening or closing for rotary electric machine.
7. the printing ink-feeding device as described in claims 1 or 2 or 3 or 4 or 5 or 6, which is characterized in that in the oil outlet pipe
External multiple spray heads.
8. the printing ink-feeding device as described in claims 1 or 2 or 3 or 4 or 5 or 6, which is characterized in that the eccentric wheel is separate
One side external surface of the axis of shaft is recessed inwardly to form adjustment chamber, and the adjustment is intracavitary to be equipped with outer support member；The outer support member is tight
Patch adjustment chamber, so that adjustment chamber is closed space, the adjustment is intracavitary to be equipped with hydraulic oil, and the outer support member is interior with adjustment chamber
Between end face be equipped with tension spring, the tension spring be used for provide so that pulling force from outer support member to contract.
9. printing ink-feeding device as claimed in claim 8, which is characterized in that the shaft is equipped with far from the side of rotary electric machine
Input oil groove adjusts chamber by transfer tube and is connected to input oil groove；The input oil groove end is circumscribed with oil inlet pipe, the oil inlet pipe and shaft
Between hydraulic rotary joint is installed, oil pump is housed, the oil inlet pipe end is connected with oil tank on the oil inlet pipe.
10. printing ink-feeding device as claimed in claim 8, which is characterized in that be all provided on the inner sidewall up and down of the adjustment chamber
There is sliding slot, the limited block for the bottom surface in insertion sliding slot and being tightly attached to sliding slot, institute are respectively arranged on the lateral wall up and down of the outer support member
Limited block is stated for sliding along the chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699007.XA CN110497699A (en) | 2019-07-31 | 2019-07-31 | A kind of printing ink-feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699007.XA CN110497699A (en) | 2019-07-31 | 2019-07-31 | A kind of printing ink-feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110497699A true CN110497699A (en) | 2019-11-26 |
Family
ID=68586816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910699007.XA Pending CN110497699A (en) | 2019-07-31 | 2019-07-31 | A kind of printing ink-feeding device |
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| Country | Link |
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| CN (1) | CN110497699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643784A (en) * | 2020-12-21 | 2022-06-21 | 佳能株式会社 | Liquid ejection apparatus |
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| US20190009557A1 (en) * | 2017-07-07 | 2019-01-10 | Canon Kabushiki Kaisha | Inkjet printing apparatus |
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| CN101314285A (en) * | 2007-05-28 | 2008-12-03 | 三星电子株式会社 | Ink jet image forming apparatus |
| CN101117055A (en) * | 2007-09-12 | 2008-02-06 | 北京大学 | Apparatus and method for ink supply |
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Application publication date: 20191126 |
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| RJ01 | Rejection of invention patent application after publication |