CN110356117A - The improvement air-channel system of digital inkjet printing machine - Google Patents
The improvement air-channel system of digital inkjet printing machine Download PDFInfo
- Publication number
- CN110356117A CN110356117A CN201910782070.XA CN201910782070A CN110356117A CN 110356117 A CN110356117 A CN 110356117A CN 201910782070 A CN201910782070 A CN 201910782070A CN 110356117 A CN110356117 A CN 110356117A
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- Prior art keywords
- solenoid valve
- gas circuit
- valve
- ink
- vacuum
- Prior art date
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- 238000007641 inkjet printing Methods 0.000 title claims abstract description 31
- 230000006872 improvement Effects 0.000 title claims abstract description 21
- 238000007639 printing Methods 0.000 claims abstract description 59
- 239000007789 gas Substances 0.000 claims description 130
- 238000004140 cleaning Methods 0.000 claims description 29
- 239000000919 ceramic Substances 0.000 claims description 25
- 239000000112 cooling gas Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000007921 spray Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
-
- 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
- B41J2/17503—Ink cartridges
- B41J2/17556—Means for regulating the pressure in the cartridge
-
- 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
- B41J2/18—Ink recirculation systems
- B41J2/185—Ink-collectors; Ink-catchers
-
- 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/17—Cleaning arrangements
-
- 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/377—Cooling or ventilating arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
Abstract
The invention discloses a kind of improvement air-channel systems of digital inkjet printing machine, including nozzle printing gas circuit, nozzle printing gas circuit includes sequentially connected filter (28), throttle valve two (29), vacuum pump (3), ink tank (4), printing head (5), the lower part of ink tank (4) is connected with multiple printing heads (5), vacuum pump (3) is connected to the top of ink tank (4), it is provided between throttle valve two (29) and vacuum pump (3) nozzle printing gas circuit to be switched to the solenoid valve three (10) for squeezing black gas circuit/negative pressure of vacuum gas circuit；Negative pressure of vacuum gas circuit and crowded black gas circuit pass through solenoid valve one (6) and switch；Negative pressure of vacuum gas circuit includes pressure reducing valve one (7), vacuum generator (8), solenoid valve two (9), solenoid valve three (10)；Squeezing ink gas circuit includes gas source (1), pressure reducing valve two (2), solenoid valve three (10).After device powers down, ink does not ooze out printing head, ensure that the cleannes of equipment.
Description
Technical field
The present invention relates to a kind of improvement air-channel systems of digital inkjet printing machine.
Background technique
The normal work of ink-jet printer needs air-channel system to carry out the control and regulation of black pressure inside the tank, with all kinds of execution
The automation control of element, now with the raising of equipment automatization level, control function increases.Original air-channel system is not
It is able to satisfy status demand.Current air-channel system, when equipment powers off suddenly, the ink in the printing head assembly of equipment is easy to seep
Out, contaminated equipment needs manually to be cleaned；In addition, surface can have some fogs, finally after the printing of spray head long term ink-jet
It will affect the quality to ceramic tile inkjet printing.
Summary of the invention
To overcome disadvantages mentioned above, the purpose of the present invention is to provide ink after a kind of device powers down do not ooze out printing head,
Guarantee the cleaning of equipment, the improvement gas of digital inkjet printing machine without manually being cleaned and being guaranteed nozzle surface cleannes
Road system.
In order to reach the goals above, the technical solution adopted by the present invention is that: a kind of improvement gas circuit of digital inkjet printing machine
System, including nozzle printing gas circuit, the nozzle printing gas circuit include sequentially connected filter, throttle valve two, vacuum pump, ink
Tank, printing head, the lower part of the ink tank are connected with multiple printing heads, and the vacuum pump is connected to the top of ink tank, described
It is provided between throttle valve two and vacuum pump nozzle printing gas circuit to be switched to the electromagnetism for squeezing black gas circuit/negative pressure of vacuum gas circuit
Valve three；The negative pressure of vacuum gas circuit is switched with crowded black gas circuit by solenoid valve one；The negative pressure of vacuum gas circuit include pressure reducing valve one,
The port three of vacuum generator, solenoid valve two, solenoid valve three, the solenoid valve one is connected by pressure reducing valve one and vacuum generator
It connects, the vacuum generator is connect with the port two of solenoid valve two, the port three of the solenoid valve two and the port of solenoid valve three
Three connections, the port two of the solenoid valve three is connected to the top of ink tank；The crowded black gas circuit includes gas source, pressure reducing valve two, electricity
Magnet valve three, the gas source are connect with the port two of solenoid valve one, and the port one of the solenoid valve one is connect with pressure reducing valve two, described
Pressure reducing valve two is connect with the port three of solenoid valve three.
The invention has the advantages that the application increase in air-channel system solenoid valve three to nozzle printing gas circuit,
It squeezes between ink gas circuit/negative pressure of vacuum gas circuit and switches, increase solenoid valve one in air-channel system, to negative in crowded black gas circuit, vacuum
Pressure gas channel switches between using.Wherein, digital inkjet printing machine is during normal print, and the operation of nozzle printing gas circuit is external empty
Gas successively passes through filter, throttle valve two and then reaches in ink tank, and vacuum pump then controls the air pressure of ink tank internal upper part, which is
The digital inkjet printing machine pressure required in inkjet printing.By pressure reducing valve one, vacuum generator, solenoid valve two, solenoid valve
The negative pressure of vacuum gas circuit of third formation, after entire air-channel system accesses negative pressure of vacuum system, negative pressure of vacuum gas circuit is in device powers down
When work so that ink tank top generate negative pressure of vacuum so that the ink in the printing head connecting with ink tank lower part does not ooze out, no
Work top can be polluted, solve the ink when equipment powers off suddenly, in printing head and be easy exudation, pollution is set
It is standby, need the problem of manually being cleaned.By gas source, pressure reducing valve two, the third crowded black gas circuit constituted of solenoid valve, squeezing ink gas circuit is
Compressed air passes through solenoid valve one, pressure reducing valve two from gas source, and solenoid valve three enters in ink tank, squeezes out the part ink in spray head
Water reduces the presence of nozzle surface fog for the cleaning of nozzle surface.
The air-channel system of equipment does not carry out the function of dust cleaning and cooling to the surface of ceramic tile before printing at present, leads
Cause ceramic tile in printing, surface is not clean, and temperature is higher, influences printing effect.In order to solve this problem, as the present invention
Further improvement be that the improvement air-channel system of the digital inkjet printing machine further includes the ceramic tile to handle ceramic tile surface
Ash disposal, cooling gas circuit, the ceramic tile ash disposal, cooling gas circuit include throttle valve one, solenoid valve four and ball valve one and tracheae, institute
It states gas source, throttle valve one, solenoid valve four and ball valve one to be sequentially connected, the ball valve one is connected to tracheae, is divided on the tracheae
It is furnished with multiple puff prots.Ball valve, solenoid valve four (Unidirectional solenoid valve), the jet of throttle valve control equipment are added in air-channel system
The air velocity of mouth.While the printing of nozzle printing gas circuit, gas source can pass through throttle valve one, solenoid valve four, ball valve, enter back into
To air-flow formation air knife that is intratracheal, and being sprayed from puff prot, ceramic tile surface dust is cleaned and cooled down using air knife, is mentioned
High printing effect.
Preferably, the air-flow trend and plane where ceramic tile of the puff prot are at an acute angle.Air-flow blows at an oblique angle
Dust on ceramic tile can effectively be removed, and not damage ceramic tile by ceramic tile surface.
Preferably, the improvement air-channel system may also include belt scraper cleaning gas circuit, and the belt scraper cleans gas circuit
Cylinder is cleaned including solenoid valve seven, belt scraper, the input terminal of the solenoid valve seven is connected with gas source, and the two of the solenoid valve seven
A output end is connect with two interfaces of at least one belt scraper cleaning cylinder respectively.Have on digital inkjet printing machine and scrapes
Knife, scraper can start the cleaning processing the belt surface of transmission platform, and the movement of scraper is realized by belt scraper cleaning cylinder,
When solenoid valve seven must be electric, belt scraper cleans cylinder movement, and scraper starts cleaning.
Preferably, the printing head of digital inkjet printing machine can nearby generate misty winged ink and printing head printing
After can residual ink, if do not remove fly ink and printing head on ink, will affect printing effect, therefore, have inhale fly ink
Gas circuit and sprayer cleaning aspirate gas circuit, can be by real to switch the winged black gas circuit of suction, the switching cylinder of sprayer cleaning suction gas circuit
It is existing, by the left and right movement of piston in switching cylinder, then realizes and inhale the switching of winged black gas circuit/sprayer cleaning suction gas circuit.Cause
This, the improvement air-channel system can include solenoid valve five, switching cylinder, the electromagnetism with switching gas circuit, the switching gas circuit
The input terminal of valve five is connected with gas source, and two interfaces of two output ends and switching cylinder of the solenoid valve five are separately connected.
Realize that the switching for inhaling winged black gas circuit, sprayer cleaning suction gas circuit, control are inhaled winged ink and aspirated with ink on spray head using switching cylinder
Automatically switch.
Preferably, it when digital inkjet printing machine cleans printing head using spray head scraper, has ink and falls
On the delivery platform below printing head, in order to solve this problem, existing digital inkjet printing machine has receipts ink small
Vehicle receives the driving of ink-conveying trolley using ink collection box cylinder, which can be used rodless cylinder, in order to realize it
Automation, then the improvement air-channel system may also include ink collection gas circuit, and the ink collection gas circuit includes pressure regulator valve one, pressure
Power table three, solenoid valve six, at least one ink collection box cylinder, the gas source, pressure regulator valve one, solenoid valve six input terminal successively
Connection, two output ends of the solenoid valve six are separately connected two interfaces of at least one ink collection box cylinder.
Preferably, the gas source is respectively between solenoid valve one, throttle valve one, solenoid valve seven, solenoid valve five, pressure regulator valve one
Set gradually gas source switch, digital pressure gauge, pressure regulator valve, oil mist separator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of negative pressure of vacuum air path part；
Fig. 2 is negative pressure of vacuum air path part and the tank connected structural schematic diagram of ink；
Fig. 3 cleans the structural schematic diagram of gas circuit, switching gas circuit for ceramic tile ash disposal cooling gas circuit, belt scraper；
Fig. 4 is the structural schematic diagram of ink collection gas circuit.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to shown in attached drawing 1-4, the improvement air-channel system of one of the present embodiment digital inkjet printing machine, including according to
Gas source 1, gas source switch 24, digital pressure gauge 25, pressure regulator valve 26, the oil mist separator 27 of secondary connection, gas source switch 24 is to open
Take offence source 1, digital pressure gauge 25 to monitor real-time pressure, pressure regulator valve 26 can according to the pressure that digital pressure gauge 25 detects into
Row adjustment, wherein gas source switch 24, digital pressure gauge 25, pressure regulator valve 26, oil mist separator 27 setting simultaneously, according to specific need
It asks to select.
The improvement air-channel system of digital inkjet printing machine in the present embodiment integrates multiple functions gas circuit, automates journey
Degree is high.Including but not limited to following gas circuit can be connected behind oil mist separator 27:
One, nozzle printing gas circuit
Nozzle printing gas circuit nozzle printing gas circuit when the digital inkjet printing machine prints ceramic tile includes sequentially connected mistake
Filter 28, throttle valve 2 29, vacuum pump 3, ink tank 4, printing head 5, the lower part of ink tank 4 are connected with multiple printing heads 5, vacuum
Pump 3 is connected to the top of ink tank 4.Digital inkjet printing machine during normal print, outside air successively pass through filter 28,
Throttle valve 2 29, ink tank 4, printing head 5, vacuum pump 3 then control the air pressure of 4 internal upper part of ink tank, which is the digital ink-jet
The printing machine pressure required in inkjet printing.
Two, squeeze ink gas circuit
It is provided between throttle valve 2 29 and vacuum pump 3 and is born nozzle printing gas circuit is switched to crowded black gas circuit/vacuum
The solenoid valve 3 10 of pressure gas channel, negative pressure of vacuum gas circuit and crowded black gas circuit are switched by solenoid valve 1, are controlled when by solenoid valve 3 10
When gas circuit is without nozzle printing gas circuit, gas circuit can squeeze black gas circuit as passing through by squeezing black gas circuit/negative pressure of vacuum gas circuit,
Or negative pressure of vacuum gas circuit, then switched over by solenoid valve 1.
It is as follows to squeeze ink gas circuit specific structure: including gas source 1, pressure reducing valve 22, solenoid valve 3 10, gas source 1 and solenoid valve 1
Port two connect, the port one of solenoid valve 1 connect with pressure reducing valve 22, the company of port three of pressure reducing valve 22 and solenoid valve 3 10
It connects.Squeezing ink gas circuit is compressed air from gas source 1 process solenoid valve 1, pressure reducing valve 22, and solenoid valve 3 10 enters in ink tank 4,
The part ink in spray head is squeezed out, for the cleaning of nozzle surface, reduces the presence of nozzle surface fog.
Three, negative pressure of vacuum gas circuit
Negative pressure of vacuum gas circuit works in device powers down, so that 4 top of ink tank generates negative pressure of vacuum, negative pressure of vacuum gas circuit packet
Pressure reducing valve 1, vacuum generator 8, solenoid valve 29, solenoid valve 3 10 are included, gas source 1 is connect with the port two of solenoid valve 1, electricity
The port three of magnet valve 1 is connect by pressure reducing valve 1 with vacuum generator 8, the port two of vacuum generator 8 and solenoid valve 29
Connection, the port three of solenoid valve 29 connect with the port three of solenoid valve 3 10, and the port two of solenoid valve 3 10 is upper with ink tank 4
Portion's connection.So that the ink in the printing head connecting with ink tank lower part does not ooze out, work top will not be polluted；Pass through
Solenoid valve 29,3 10 is equipped with, and can toggle between nozzle printing gas circuit, negative pressure of vacuum gas circuit more accurate.
Four, ceramic tile ash disposal, cooling gas circuit
The air-channel system of equipment does not carry out the function of dust cleaning and cooling to the surface of ceramic tile before printing at present, leads
Cause ceramic tile in printing, surface is not clean, and temperature is higher, influences printing effect, then increases the ceramic tile ash disposal, cooling gas
Road.Ceramic tile ash disposal, cooling gas circuit include throttle valve 1, solenoid valve 4 12 and ball valve 1 and tracheae 14, gas source 1, section
Stream valve 1, solenoid valve 4 12 and ball valve 1 are sequentially connected, and ball valve 1 is connected to tracheae 14, is distributed on tracheae 14 more
A puff prot 15.While nozzle printing gas circuit is logical, gas source also passes through throttle valve 1, solenoid valve 4 12, ball valve 1, then
It enters in tracheae 14, and the air-flow sprayed from puff prot 15 forms air knife, is cleaned using air knife to ceramic tile surface dust
And cooling.Preferably, the air-flow trend and plane where ceramic tile of puff prot 15 are at an acute angle.
Five, belt scraper cleans gas circuit
There is scraper, scraper can start the cleaning processing the belt of transmission platform, the fortune of scraper on digital inkjet printing machine
It is dynamic that cylinder is cleaned to realize by belt scraper, therefore the mobile skin of control belt scraper cleaning cylinder can be added in the present embodiment
Band scraper cleans gas circuit.Belt scraper cleaning gas circuit include solenoid valve 7 16, belt scraper cleaning cylinder 17, solenoid valve 7 16
Input terminal is connected with gas source 1, and two output ends of solenoid valve 7 16 clean the two of cylinder 17 at least one belt scraper respectively
A interface connection.When solenoid valve 7 16 must be electric, belt scraper cleans 17 cylinder movements, and scraper starts cleaning.
Six, switching gas circuit
When the winged ink and printing head that mist can be generated near the printing head of digital inkjet printing machine clean after printing
Meeting residual ink will affect printing effect if not removing the ink flown on ink and printing head, therefore, there is suction to fly black gas
Road and sprayer cleaning suction gas circuit can fly black gas circuit, the switching cylinder reality of sprayer cleaning suction gas circuit to switch to inhale adding
It is existing, by the left and right movement of piston in switching cylinder, then realizes and inhale the switching of winged black gas circuit/sprayer cleaning suction gas circuit, cut
Ventilation road includes solenoid valve 5 18, switching cylinder 19, and the input terminal of solenoid valve 5 18 is connected with gas source 1, and the two of solenoid valve 5 18
Two interfaces of a output end and switching cylinder 19 are separately connected.By the movement of the piston in control switching cylinder, realizes and inhale
Fly the switching of ink gas circuit, sprayer cleaning suction gas circuit, control suction flies ink and ink suction automatic switchover on spray head.
Seven, ink collection gas circuit
When digital inkjet printing machine cleans printing head using spray head scraper, has ink and fall positioned at printing
On delivery platform below spray head, in order to solve this problem, existing digital inkjet printing machine, which has, receives ink-conveying trolley, and it is small to receive ink
The driving of vehicle utilizes ink collection box cylinder, which can be used rodless cylinder, in order to realize its automation, then
The improvement air-channel system can add ink collection gas circuit.Ink collection gas circuit includes pressure regulator valve 1, pressure gauge 3 23, electromagnetism
Valve 6 21, at least one ink collection box cylinder 22, the input of gas source 1, pressure regulator valve 1, pressure gauge 3 23, solenoid valve 6 21
End is sequentially connected, and two output ends of solenoid valve 6 21 are separately connected two interfaces of at least one ink collection box cylinder 22.
The working principle of the above-mentioned six kinds of gas circuits of collection described below:
Device powers down state:
All solenoid valves are in power failure state.The work of the normal position of solenoid valve 1 (since contained spring acts on, right loop
Work), compressed air enters in vacuum generator 8 from solenoid valve 1 by pressure reducing valve 1, and vacuum generator 8 then generates
Negative pressure, solenoid valve 29, solenoid valve 3 10 are now in normal position, and negative pressure of vacuum passes through solenoid valve 29 and solenoid valve 3 10, effect
In each upper ink tank 4 (general quantity is 8-12), so that negative pressure is formed at upper ink tank top, because of upper ink tank and all printings
Ink road communicates in spray head, so that the ink in print head spray head does not ooze out.Negative pressure of vacuum is adjusted by pressure reducing valve 1, can be led to
Excess pressure table, the detection for pressure.
Equipment is in normal print state:
Solenoid valve 1, solenoid valve 29,3 10 coil of solenoid valve obtain electric, solenoid valve 1, solenoid valve 29, solenoid valve 3 10
It is in left loop working condition, ink tank air pressure is adjusted by vacuum pump 3 at this time.
6 21 right side coil of solenoid valve obtains electric, and 6 21 right loop of solenoid valve is in running order, and compressed air is by subtracting
Pressure valve 1, solenoid valve 6 21 are moved on the outside of equipment so that receiving print cartridge cylinder piston.
4 12 coil of solenoid valve is in obtain electricity condition, and solenoid valve internal switching, compressed air passes through throttle valve 1 at this time,
Solenoid valve 4 12, ball valve 1 is interior into air knife apparatus (tracheae 14), and air knife generates air-flow, cleans to the surface of ceramic tile
With cooling.
7 16 coil of solenoid valve obtains electric, and solenoid valve 7 16 is in left loop working condition, and belt scraper cleans gas at this time
Cylinder 17 acts, and scraper starts cleaning
Solenoid valve 5 18 is in normal position, and the piston rod for switching cylinder 19 at this time is contracted in inside switching cylinder 19, at equipment
Fly ink-condition in inhaling.
Equipment is in sprayer cleaning state:
4 12 coil losing electricity of solenoid valve is in reset state, and 4 12 inside of solenoid valve disconnects, and air knife stops working.
7 16 coil losing electricity of solenoid valve is in reset state, and solenoid valve 7 16 is in right loop working condition, at this time skin
Band scraper cleans 17 counteragent of cylinder, and belt scraper stops working.
6 21 left side coil of solenoid valve obtains electric, and 6 21 left loop of solenoid valve is in running order, and compressed air is by subtracting
Pressure valve 1, solenoid valve 6 21 squeeze out so that 22 piston of ink collection box cylinder is moved on the inside of equipment for collecting from spray head
Ink.
Solenoid valve 1,29 coil of solenoid valve still it is electric, solenoid valve 1, solenoid valve 29 are still within left loop
Working condition, 3 10 coil losing electricity of solenoid valve reset, and solenoid valve 3 10 is in right loop working condition.So compressing at this time
Air passes through solenoid valve 1, pressure reducing valve 2, and solenoid valve 3 10 enters in ink tank 4, squeezes out the part ink in spray head, is used for
The cleaning of nozzle surface.Then 3 10 coil of solenoid valve obtains electric, restores adjusting of the vacuum pump 3 to ink tank 4.
5 18 coil of solenoid valve obtain it is electric, be in left loop working condition, at this time switch 19 piston rod of cylinder stretch out, control
Equipment switching device, equipment switch to sprayer cleaning aspiration phases by inhaling winged ink-condition, clean spray head.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.
Claims (7)
1. a kind of improvement air-channel system of digital inkjet printing machine, including nozzle printing gas circuit, the nozzle printing gas circuit include
Sequentially connected filter (28), throttle valve two (29), vacuum pump (3), ink tank (4), printing head (5), the ink tank (4)
Lower part is connected with multiple printing heads (5), and the vacuum pump (3) is connected to the top of ink tank (4), it is characterised in that: the section
It is provided between stream valve two (29) and vacuum pump (3) and squeezes black gas circuit/negative pressure of vacuum gas circuit to switch to nozzle printing gas circuit
Solenoid valve three (10)；The negative pressure of vacuum gas circuit and crowded black gas circuit pass through solenoid valve one (6) and switch；
The negative pressure of vacuum gas circuit includes pressure reducing valve one (7), vacuum generator (8), solenoid valve two (9), solenoid valve three (10), institute
The port three for stating solenoid valve one (6) is connect by pressure reducing valve one (7) with vacuum generator (8), the vacuum generator (8) and electricity
The port two of magnet valve two (9) connects, and the port three of the solenoid valve two (9) is connect with the port three of solenoid valve three (10), described
The port two of solenoid valve three (10) is connected to the top of ink tank (4)；
The crowded black gas circuit includes gas source (1), pressure reducing valve two (2), solenoid valve three (10), the gas source (1) and solenoid valve one (6)
Port two connect, the port one of the solenoid valve one (6) connect with pressure reducing valve two (2), the pressure reducing valve two (2) and solenoid valve
The port three of three (10) connects.
2. the improvement air-channel system of digital inkjet printing machine according to claim 1, it is characterised in that: further include to right
The ceramic tile ash disposal of ceramic tile surface processing, cooling gas circuit, the ceramic tile ash disposal, cooling gas circuit include throttle valve one (11), solenoid valve
Four (12) and ball valve one (13) and tracheae (14), the gas source (1), throttle valve one (11), solenoid valve four (12) and ball
Valve one (13) is sequentially connected, and the ball valve one (13) is connected to tracheae (14), and multiple puff prots are distributed on the tracheae (14)
(15)。
3. the improvement air-channel system of digital inkjet printing machine according to claim 2, it is characterised in that: the puff prot
(15) air-flow trend and plane where ceramic tile is at an acute angle.
4. the improvement air-channel system of digital inkjet printing machine according to claim 2, it is characterised in that: further include that belt is scraped
Knife cleans gas circuit, and the belt scraper cleaning gas circuit includes solenoid valve seven (16), belt scraper cleaning cylinder (17), the electromagnetism
The input terminal of valve seven (16) is connected with gas source (1), two output ends of the solenoid valve seven (16) respectively at least one belt
Scraper cleans two interfaces connection of cylinder (17).
5. the improvement air-channel system of digital inkjet printing machine according to claim 4, it is characterised in that: further include switching gas
Road, the switching gas circuit include solenoid valve five (18), switching cylinder (19), the input terminal and gas source of the solenoid valve five (18)
(1) it is connected, two output ends of the solenoid valve five (18) and two interfaces of switching cylinder (19) are separately connected.
6. the improvement air-channel system of digital inkjet printing machine according to claim 5, it is characterised in that: further include that ink is received
Collect gas circuit, the ink collection gas circuit includes pressure regulator valve one (20), pressure gauge three (23), solenoid valve six (21), at least one ink
Water collection box cylinder (22), the gas source (1), pressure regulator valve one (20), pressure gauge three (23), solenoid valve six (21) input terminal according to
Secondary connection, two output ends of the solenoid valve six (21) be separately connected at least one ink collection box cylinder (22) two connect
Mouthful.
7. the improvement air-channel system of digital inkjet printing machine according to claim 6, it is characterised in that: the gas source (1)
Respectively between solenoid valve one (6), throttle valve one (11), solenoid valve seven (16), solenoid valve five (18), pressure regulator valve one (20) successively
Gas source switch (24), digital pressure gauge (25), pressure regulator valve (26), oil mist separator (27) are set.
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