CN113478976A - External negative pressure integrated device - Google Patents
External negative pressure integrated device Download PDFInfo
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- CN113478976A CN113478976A CN202110600988.5A CN202110600988A CN113478976A CN 113478976 A CN113478976 A CN 113478976A CN 202110600988 A CN202110600988 A CN 202110600988A CN 113478976 A CN113478976 A CN 113478976A
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- 238000007639 printing Methods 0.000 claims abstract description 18
- 239000000976 ink Substances 0.000 claims description 70
- 238000007872 degassing Methods 0.000 claims description 16
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
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
- 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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16552—Cleaning of print head nozzles using cleaning fluids
Landscapes
- Ink Jet (AREA)
Abstract
The invention relates to an external negative pressure integration device which comprises a negative pressure box, wherein a plurality of negative pressure modules are arranged in the negative pressure box, each negative pressure module comprises a circuit board I and a plurality of negative pressure components connected with the circuit board I, each negative pressure component is used for adjusting a negative pressure value in an ink cavity of a secondary ink box connected with a printing spray head, one end part of each negative pressure module is provided with a quick plug connector connected with the circuit board I, a support plate is arranged in the negative pressure box, and a quick plug connector adapter plate matched with the quick plug connector is arranged on the support plate. The invention has the advantages of modularization, integration, high assembly flexibility, convenient installation and disassembly, convenient replacement and maintenance, strong usability, high negative pressure control response speed, high negative pressure regulation efficiency and accurate negative pressure value control.
Description
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to an external negative pressure integrated device.
Background
In order to ensure that an ink tank continuously, stably and properly supplies ink to the printing nozzle, a negative pressure mode is generally used for controlling the ink supply to the nozzle, and a positive pressure mode is used for inflating the blocked nozzle or flushing cleaning liquid to dredge a pipeline. When a color pattern is printed and a printing medium is not white, a layer of white ink is required to be sprayed on the medium to be used as background color, and then the color pattern is required to be printed on the printing medium sprayed with the white ink to ensure that the color of the pattern is bright.
In the negative pressure module of the ink jet printer in the prior art, because the density of the white ink is greater than that of the color ink, and the gravity of the white ink is greater under the same volume, the negative pressure value required by the white ink path is also greater, and usually one negative pressure system is adopted to adjust the negative pressure of the white ink, and the other negative pressure system is adopted to simultaneously adjust the negative pressures of all other color inks. For example, chinese patent CN203752685U discloses a negative pressure module for an inkjet printer, which comprises a first negative pressure block assembly, a second negative pressure block assembly, a first air pump, a second air pump, a negative pressure circuit board and a negative pressure mounting plate, wherein the first negative pressure block assembly is installed at one end of the wide side of the negative pressure mounting plate, the first air pump is installed at one end of the long side of the negative pressure mounting plate, and the first negative pressure block assembly is connected to the first air pump for controlling printing in a white ink negative pressure mode; the second negative pressure block combination is arranged at the other end of the wide side of the negative pressure mounting plate, the second air pump is arranged at one end of the long side of the negative pressure mounting plate and arranged side by side with the first air pump, and the second negative pressure block combination is connected with the second air pump and used for controlling printing in a color ink negative pressure mode.
The above prior art has the following problems:
when the printer normally works, the negative pressure value in each ink cavity of the secondary ink box continuously changes along with the printing, so that the negative pressure module is required to adjust the negative pressure value in each air channel in time to ensure that ink cannot drip from a nozzle under the action of gravity; on the other hand, the use amount of each color of ink is different, which causes a large difference in the negative pressure value in the ink chamber of each color, the negative pressure value in each ink chamber needs to be reasonably distributed when the negative pressure is adjusted, and the response time is slowed, thereby causing unstable ink supply and affecting the printing effect.
In order to ensure the high quality of a printed pattern, the adopted ink is generally quick-drying ink, and when the ink-jet printer works, because the use frequency of each nozzle is different, certain nozzles with low use frequency can be blocked, so that the ink-jet printer needs to start a positive pressure mode to dredge the nozzles every several hours, and in the prior art, a positive pressure pump is adopted to dredge all nozzles, and because the power of the positive pressure pump is limited, when the nozzles are too many, the dredging effect is not good; and when the mediation finishes, when the malleation is switched back to the negative pressure again, all ink chambers need reset the negative pressure value, on the one hand, because the negative pressure value of many gas circuits need be adjusted to a negative pressure system, because of the power of air pump is limited, make the regulation inefficiency, on the other hand, because of the negative pressure value difference in every ink chamber, adopt a negative pressure system to adjust the negative pressure value for a plurality of ink chambers, can make the negative pressure value between each ink chamber interfere with each other, and the circuit board needs continuous recalculation, make the regulation time longer, response speed is slower.
The negative pressure module of the ink jet printer in the prior art is installed in the electronic box on the printer, and when the negative pressure module trouble needs to be changed, all gas circuits need to be dismantled, reinstallated after changing the negative pressure module, and need unify the negative pressure value of adjusting every gas circuit, troublesome poeration and consume time for a long time.
In summary, the negative pressure module in the prior art has the following problems:
1) when the printer works normally, one negative pressure system adjusts the negative pressure values of all color inks, the adjustment efficiency is low, the ink supply is unstable, and the printing effect is influenced;
2) after the nozzle is dredged in the positive pressure mode, when the negative pressure mode is switched back, the adjustment efficiency of resetting the negative pressure value is low, and the negative pressure values of a plurality of ink cavities are interfered with each other, so that the adjustment time is longer;
3) when the negative pressure module is replaced, the operation is troublesome, and the recovery of the negative pressure mode takes a long time.
Disclosure of Invention
The invention aims to provide an external negative pressure integrated device to solve the defects in the prior art, and the technical problem to be solved by the invention is realized by the following technical scheme.
The utility model provides an external negative pressure integrated device, includes the negative pressure tank, be equipped with a plurality of negative pressure modules in the negative pressure tank, the negative pressure module include circuit board I and with a plurality of negative pressure components that circuit board I is connected, the negative pressure component is used for adjusting the negative pressure value in the china ink intracavity of the second grade ink horn that links to each other with the printing shower nozzle, a tip of negative pressure module be equipped with the quick connector that circuit board I connects, be equipped with the backup pad in the negative pressure tank, be equipped with in the backup pad with quick connector assorted quick connector keysets.
Preferably, the negative pressure assembly comprises a valve plate, a negative pressure air pump, an air bottle I arranged on the valve plate, a deflation valve I with one end communicated with the air bottle I and the other end communicated with the negative pressure air pump, and an air suction valve I with one end communicated with the air bottle I and the other end communicated with the atmosphere.
Preferably, the negative pressure module comprises positive pressure air pumps, and the number of the positive pressure air pumps is equal to that of the negative pressure assemblies.
Preferably, a positive pressure joint is arranged on the valve plate and communicated with the positive pressure air pump.
Preferably, a negative pressure connector I is arranged on the valve plate and communicated with the gas cylinder I.
Preferably, the valve plate is provided with an electromagnetic valve communicated with the negative pressure joint I.
Preferably, a throttle valve I is arranged on the valve plate, and the suction valve I is communicated with the atmosphere through the throttle valve I.
Preferably, a degassing module is arranged in the negative pressure box.
Preferably, the degassing module comprises a high negative pressure generating device and a circuit board II.
Preferably, the high negative pressure generating device comprises a valve block, a gas cylinder II arranged on the valve block, an air suction valve II and an air release valve II which are arranged on the valve block and are respectively communicated with the gas cylinder II, a vacuum generator communicated with the gas cylinder II, and a switch valve connected with the vacuum generator.
The external negative pressure integrated device provided by the invention has the following beneficial effects:
1) the modularized, integrated and assembled structure has high flexibility, is convenient to expand, is more convenient to pre-assemble and mass-produce, is convenient to install and disassemble, is convenient to replace and maintain, and has strong usability; be equipped with quick connector on the installing support, quick connector links to each other with the circuit board soon, during the installation, only need to pass through quick connector and quick connector keysets with a negative pressure module and peg graft fast, the connector keysets has the function of communication and power supply simultaneously, pass through quick connector keysets drive circuit board I by the bus, and by the work of circuit board I control air pump and valve, in addition, when having needs, the negative pressure of a plurality of independent negative pressure subassembly can the intercombination become negative pressure all the way, in order to reach faster corresponding speed. Due to the structure and the design of the gas circuit control mode, the negative pressure module is more integrated and modularized, and the modularized negative pressure module is convenient to mount and dismount and convenient to replace and maintain due to the arrangement of the quick connector; the whole external negative pressure integrated device is uniformly controlled by the bus and distributes tasks, the bus is connected with the negative pressure integrated device through the aviation plug, the negative pressure integrated device is well assembled and tested during use, the whole negative pressure integrated device can be independently purchased for customers, the negative pressure integrated device can be quickly plugged and connected with the bus through the aviation plug, other electric control circuits do not need to be installed, the operation is simple, the technical capacity requirement on operators is low, and the usability is stronger.
2) The device is not limited by the volume and the structure of the machine; according to the number of ink paths required by the operation of the printer, a corresponding number of negative pressure modules are installed in the negative pressure box 1, the negative pressure box 1 is independently placed outside the machine, and a pipeline in the printer is connected with the negative pressure modules in the negative pressure box 1, so that the space in the machine is not occupied, the problem that the number of the negative pressure modules is limited due to the fact that the negative pressure modules are placed in the machine in the prior art is solved, and the transportation or the replacement is more convenient;
3) when the printer works normally, the negative pressure value of one ink cavity is adjusted by one negative pressure component, the adjusting efficiency is high, the response speed is high, the ink supply is more stable, and the printing effect is better; each negative pressure component controls the negative pressure in one ink cavity, compared with the negative pressure value of white ink controlled by one negative pressure component and the negative pressure values of all color inks controlled by the other negative pressure component in the prior art, the negative pressure air path of each ink cavity is independent and has no interference with each other, and the negative pressure in one ink cavity is adjusted by one air pump when the negative pressure value is adjusted, so that the response speed is high, the negative pressure control is better, and the printing effect is better;
4) when the positive pressure mode is adopted to dredge the spray head, a positive pressure air pump applies positive pressure to an ink cavity of the secondary ink box, the pressure is sufficient, and the dredging efficiency is higher;
5) after the spray head is dredged in the positive pressure mode, when the negative pressure mode is switched back, the negative pressure values of all the ink cavities have no mutual interference, and the resetting speed of the negative pressure values is high;
6) when one negative pressure module is replaced, other negative pressure modules are not affected, and the speed of recovering the negative pressure value is high;
7) the failure rate is low, and the after-sale cost is effectively saved; because the negative pressure value in the ink chamber is controlled independently by one negative pressure component, compared with the mode that one negative pressure module controls the negative pressure values of all ink paths of the whole machine in the prior art, the probability of failure is greatly reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a negative pressure tank according to the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of the present invention;
FIG. 4 is a schematic side view of the present invention;
FIG. 5 is a schematic view of a support plate according to the present invention;
FIG. 6 is a schematic structural view of a base plate according to the present invention;
FIG. 7 is a schematic perspective view of a negative pressure module according to the present invention;
FIG. 8 is a schematic perspective view of a negative pressure module according to the present invention;
FIG. 9 is a schematic side view of the negative pressure module of the present invention;
FIG. 10 is a schematic perspective view of a degassing module according to the present invention;
FIG. 11 is a schematic side view of a degassing module according to the present invention;
the reference numbers in the drawings are, in order: 1. negative pressure tank, 11, bottom plate, 111, through hole, 12, top plate, 121, mounting hole, 13, back plate, 131, through groove I, 2, box door, 3, negative pressure module, 31, mounting bracket I, 311, positioning pin, 32, negative pressure component, 321, gas cylinder I, 322, negative pressure air pump, 323, air relief valve I, 324, air suction valve I, 325, electromagnetic valve, 326, valve plate, 327, negative pressure joint I, 328, throttle valve I, 329, reset button, 33, circuit board I, 34, quick connector, 35, positive pressure air pump, 351, positive pressure joint, 36, side plate I, 361, through groove II, 37, side plate II, 38, upper cover, 39, handle, 4, degassing module, 41, mounting bracket II, 42, high negative pressure generating device, 421, gas cylinder II, 422, valve block, 423, air relief valve II, 424, air suction valve II, 425, sensor joint, 426, throttle valve II, 427, negative pressure joint II, 428. the quick connector comprises a switch valve, 429, a vacuum generator, 4291, a ventilation connector, 43, circuit boards II, 44, end covers, 5, a support plate, 51, a quick connector adapter plate, 6 and a blocking plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1:
referring to fig. 1, 2, 4 and 5, an external negative pressure integrated device is improved in that: including negative pressure tank 1, be equipped with a plurality of negative pressure modules 3 in the negative pressure tank 1, negative pressure module 3 include circuit board I33 and with a plurality of negative pressure subassembly 32 that circuit board I33 is connected, negative pressure subassembly 32 is used for adjusting the negative pressure value in the black intracavity of a second grade ink horn that links to each other with the printing shower nozzle, a tip of negative pressure module 3 be equipped with quick connector 34 that circuit board I33 is connected, be equipped with backup pad 5 in the negative pressure tank 1, be equipped with on the backup pad 5 with quick connector keysets 51 of quick connector 34 assorted.
Further, the negative pressure tank 1 includes a top plate 12, and the negative pressure module 3 is vertically installed on the top plate 12.
In this embodiment, the negative pressure box 1 is independently arranged outside the printer, a plurality of negative pressure modules 3 are arranged in the negative pressure box 1, the negative pressure modules 3 are vertically arranged in the negative pressure box 1, the negative pressure modules are installed in a drawer type, one end of each negative pressure module 3 is provided with a quick connector 34, the quick connectors 34 are connected with a circuit board I33, the quick connectors 34 are quickly connected with a quick connector adapter plate 51 in an inserting manner, the quick connector adapter plate 51 has the functions of communication and power supply, each quick connector adapter plate 51 is uniformly controlled by a bus and corresponding tasks are distributed, the quick connector adapter plate 51 supplies power to the negative pressure modules through the quick connectors 34 and transmits information to the circuit board I33, and the circuit board I33 drives and controls the work of the negative pressure assembly.
Further, as shown in fig. 7, a handle 39 is arranged on one side of the negative pressure module 3, a plurality of mounting holes 121 matched with the negative pressure module 3 are formed in the top plate 12, when the negative pressure module is mounted, the handle 39 is held by hand, the negative pressure module 3 is placed in the negative pressure box 1 from the mounting holes 121, the quick connector 34 is contacted with and connected with the quick connector adapter plate 51 in an inserting mode, when the negative pressure module is replaced, the handle is held by hand, the quick connector 34 and the quick connector adapter plate 51 can be pulled out slightly by force upwards, the quick connector 34 and the quick connector adapter plate 51 are connected in a quick inserting mode, the inserting and the pulling are convenient, and the operation is simple.
When the printer is used, according to the number of ink paths required by the operation of the printer, the negative pressure modules with corresponding number are arranged in the negative pressure box 1, the negative pressure box 1 is independently placed outside the machine, and a pipeline in the printer is connected with the negative pressure modules in the negative pressure box 1, so that the space in the machine is not occupied, the problem that the number of the negative pressure modules is limited because the negative pressure modules are placed in the machine in the prior art is solved, and the negative pressure modules are more integrated and modularized, are convenient to disassemble and are more convenient to replace and maintain; the whole external negative pressure integrated device is uniformly controlled by the bus and distributes tasks, the bus is connected with the negative pressure integrated device through the aviation plug, the negative pressure integrated device is well assembled and tested during use, the whole negative pressure integrated device can be independently purchased for customers, the negative pressure integrated device is connected with the bus through the aviation plug, other pipelines do not need to be installed, the operation is simple, the technical capacity of an operator is not required, and the usability is stronger.
By the design mode, the purpose that each set of negative pressure assembly 32 controls the negative pressure in one ink cavity can be realized, a plurality of sets of negative pressure modules 3 can be placed in the negative pressure box 1 as required, the limitation of the whole volume of the printer is avoided, the transportation or the replacement is more convenient, when a certain air path needs to be replaced or maintained, one negative pressure module 3 can be independently replaced, other air paths are not influenced, the negative pressure value does not need to be reset, and the negative pressure reset of the replaced negative pressure module 3 is simpler; compared with the prior art that one negative pressure component controls the negative pressure value of white ink and the other negative pressure component controls the negative pressure values of all color inks, the negative pressure air passages of all ink cavities are independent and have no interference with each other, and each group of negative pressure components 32 adjusts the negative pressure in one ink cavity when adjusting the negative pressure value, so that the response speed is high, the control effect is better, and the printing effect is better.
Furthermore, one side of the negative pressure box 1 is provided with a box door 2 which is movably connected with the negative pressure box.
Further, referring to fig. 6, the negative pressure tank 1 includes a bottom plate 11 located at the bottom, the bottom plate 11 is provided with a plurality of through holes 111, and the through holes 111 are used for routing wires from the quick connector adapter plate 51 to the outside.
Further, referring to fig. 3, the negative pressure tank 1 includes a back plate 13, a strip-shaped through groove I131 is formed in the back plate, and the through groove I131 facilitates piping or routing between the negative pressure module 3 inside the negative pressure tank 1 and devices or systems such as an external ink supply tank.
Further, including closure plate 6, when mounting hole 121 on the roof 12 of negative pressure tank 1 is not used, can use closure plate 6 to block mounting hole 121 for negative pressure tank 1 is whole more pleasing to the eye.
Example 2:
in addition to embodiment 1, referring to fig. 8, the negative pressure assembly 32 includes a valve plate 326, a negative pressure air pump 322, an air bottle I321 mounted on the valve plate 326, a deflation valve I323 having one end communicated with the air bottle I321 and the other end communicated with the negative pressure air pump 322, and an air suction valve I324 having one end communicated with the air bottle I321 and the other end communicated with the atmosphere.
In this embodiment, the air release valve I323 is used for releasing air from the air bottle I321 under the driving of the negative pressure air pump 322, the air suction valve I324 is used for continuously sucking air into the air bottle I321, the negative pressure air pump 322, the air release valve I323, and the air suction valve I324 are controlled by the circuit board I33, and the air bottle I321 maintains a substantially constant negative pressure value through the actions of the negative pressure air pump 322, the air release valve I323, and the air suction valve I324, so as to adjust the negative pressure value in the ink chamber communicated therewith, thereby ensuring that ink supply is performed normally.
Further, the negative pressure module 3 comprises a mounting bracket I31, the mounting bracket I31 is vertically mounted with the top plate 12, and the negative pressure assembly 32 is mounted on the mounting bracket I31.
Further, the valve plate 326 and the negative pressure air pump 322 are mounted on the mounting bracket I31.
Each negative pressure assembly 32 is vertically arranged on a mounting bracket I31, the gas cylinder I321 is mounted on one side of the long side of the mounting bracket I31, the suction valve I321 and the release valve I323 are mounted on a valve plate 326 at the top end of the gas cylinder I321, the negative pressure air pump 322 is mounted at the bottom end of the gas cylinder I321, a plurality of negative pressure assemblies 32 can be mounted on the mounting bracket I31, and a minimum number of negative pressure assemblies 32 can be mounted on the mounting bracket I31 to form a minimum unitized negative pressure module 3.
Further, referring to fig. 9, a negative pressure connector I327 is arranged on the valve plate 326, and the negative pressure connector I327 is communicated with the gas cylinder I321. The other end of the negative pressure joint I327 is communicated with an ink cavity of the secondary ink box and is used for adjusting the negative pressure value in the ink cavity through the negative pressure component 32.
Further, the valve plate 326 is provided with reset buttons 329, the number of the reset buttons 329 is equal to that of the negative pressure assemblies 32, and the reset buttons 329 are connected with the circuit board I33. When the negative pressure module 3 is replaced, the negative pressure value in the air bottle I321 needs to be reset, and the reset button 329 is pressed to send a reset signal to the circuit board I33, so that the circuit board I33 controls the negative pressure assembly 3 to perform negative pressure reset.
Furthermore, an electromagnetic valve 325 communicated with the negative pressure joint I327 is arranged on the valve plate 326. The electromagnetic valve 328 is used for closing a passage between the gas cylinder I321 and the ink chamber when the negative pressure value in the gas cylinder I321 is reestablished, so as to avoid the interference of the outside on the negative pressure value in the gas cylinder I321.
Further, a throttle valve I328 is arranged on the valve plate 326, and the suction valve I324 is communicated with the atmosphere through the throttle valve I328. The throttle valve I328 is used for adjusting the flow rate of the air sucked by the suction valve I324, so that the adjustment of the negative pressure value is quicker and more accurate.
Further, the negative pressure module 3 includes positive pressure air pumps 35, and the number of the positive pressure air pumps 35 is equal to the number of the negative pressure assemblies 32.
Further, the positive pressure air pump 35 is mounted on the mounting bracket I31.
When the positive pressure mode is adopted to dredge the spray heads, a positive pressure air pump 35 applies positive pressure to the spray heads which print the same type of ink, the pressure is sufficient, and the dredging efficiency is higher.
Further, a positive pressure connector 351 is arranged on the valve plate 326, and the positive pressure connector 351 is communicated with the positive pressure air pump 35. The other end of the positive pressure connector 351 is connected with a secondary ink box and is used for dredging the nozzle by positively extruding ink or cleaning fluid under the driving of the positive pressure air pump 35.
Further, a side plate I36 connected with the outer side surface of the valve plate 326 is vertically arranged on the mounting bracket 31, a through groove II361 is arranged on the side plate I36, and the size of the through groove II361 matches with the overall size of the negative pressure joint I327, the positive pressure joint I351, the throttle valve I328 and the reset button 329.
Further, a side plate II37 located at the bottom end of the gas cylinder I321 is vertically arranged on the mounting bracket I31, a plurality of through grooves are formed in the side plate II37, and the through grooves are used for punching of pipelines between the gas pump and the gas cylinder or the valve, so that the appearance of the negative pressure module 3 is tidier.
Further, referring to fig. 7, an upper cover 38 is disposed outside the gas cylinder I321, and the upper cover 38 is a hollow bent thin plate. The upper cover 38 can protect the gas cylinder I321 from being collided and damaged during installation or replacement, the appearance of the negative pressure module 3 is tidier, the upper cover 38 is a hollow bent thin plate, and heat dissipation of parts such as the air suction valve I321 and the air release valve I323 below the upper cover 38 is facilitated.
Furthermore, the bottom end face of the mounting bracket I31 is provided with a positioning pin 311, the supporting plate 5 is provided with a positioning hole matched with the positioning pin 311, and the positioning pin 311 and the positioning hole are arranged, so that when the negative pressure module 3 is mounted conveniently, the quick connector 34 and the quick connector adapter plate 51 are positioned before being plugged, and the mounting is more convenient.
Example 3:
in addition to embodiment 1 or 2, referring to fig. 10 and 11, a degassing module 4 is provided in the negative pressure tank 1.
In this embodiment, because the rocking of main ink tank or at the flow of ink at the printing in-process, often dissolve certain bubble in the ink, these bubbles can lead to the phenomenon that the shower nozzle air-jet appears in the printing process, influence the printing quality, and degasification module 4's setting is arranged in precipitating the bubble of dissolving in the ink for it is better to print the effect.
Further, the degassing module 4 comprises a mounting bracket II41 arranged perpendicular to the top plate 12, and a high negative pressure generating device 42 and a circuit board II43 are arranged on the mounting bracket II 41.
Further, the high negative pressure generating device 42 includes a valve block 422 mounted on the mounting bracket II41, a gas cylinder II421 mounted on the valve block 422, an air suction valve II424 and a air release valve II423 mounted on the valve block 422 and respectively communicated with the gas cylinder II421, a vacuum generator 429 mounted on the mounting bracket II41 and communicated with the gas cylinder II421, and a switch valve 428 mounted on the mounting bracket II41 and connected to the vacuum generator 429.
Further, a ventilation joint 4291 is arranged on the valve block 422, and the vacuum generator 429 is communicated with the gas cylinder II421 through the ventilation joint 4291.
Further, a negative pressure connector II427 is arranged on the valve block 422, and the negative pressure connector II427 is communicated with the gas cylinder.
Further, a sensor connector 425 is arranged on the valve block 422, and one end of the sensor connector 427 is communicated with the gas cylinder II421, and the other end is connected with the circuit board II 43.
Further, a throttle valve II426 is arranged on the valve block 422, and the suction valve II424 is communicated with the atmosphere through the throttle valve II 426.
In this embodiment, when the degassing module 4 works, a high-power industrial air pump of a printer work site is connected with the switch valve 428, the switch valve 428 is controlled to be opened and closed through the circuit board II43, so that the communication and the closing of the industrial air pump and the degassing module 4 are controlled, when the switch valve 428 is opened, the industrial air pump provides positive pressure air for the degassing module 4, the positive pressure air is converted into negative pressure air under the action of the vacuum generator 429, compared with a vacuum pump, the vacuum generator has the advantages of simple structure, small volume, light weight, low price and convenience in installation, the vacuum generator 429 is communicated with the air bottle II421 through the vent joint 4291, the negative pressure value in the air bottle II421 is adjusted through the air suction and air discharge effects of the air suction valve II424 and the air discharge valve II423 to achieve a target negative pressure value, and the air bottle is connected with an ink path system needing degassing through the negative pressure joint II427 to achieve the purpose of degassing. And a throttle valve II426 is arranged for adjusting the flow rate of the air sucked by the suction valve II424, so that the adjustment of the negative pressure value is quicker and more accurate. The sensor joint 425 is used for communicating the gas cylinder II421 with a negative pressure sensor on the circuit board II43, and the negative pressure sensor detects the negative pressure value in the gas cylinder II421 in real time and adjusts the value in real time.
Furthermore, an end cover 44 is arranged on one side of the mounting bracket II41 close to the top plate 12, and a handle 39 is arranged on the end cover 44, so that the mounting and dismounting of the degassing module 4 are facilitated.
It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein.
Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways, such as by rotating it 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.
In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an external negative pressure integrated device which characterized in that: including negative pressure tank (1), be equipped with a plurality of negative pressure modules (3) in negative pressure tank (1), negative pressure module (3) include circuit board I (33) and with a plurality of negative pressure subassembly (32) that circuit board I (33) are connected, negative pressure subassembly (32) are used for adjusting the negative pressure value in the china ink intracavity of the second grade ink horn that links to each other with the printing shower nozzle, a tip of negative pressure module (3) be equipped with quick connector (34) that circuit board I (33) are connected, be equipped with backup pad (5) in negative pressure tank (1), be equipped with on backup pad (5) with quick connector keysets (51) of quick connector (34) assorted.
2. The external negative pressure integrated device according to claim 1, wherein: the negative pressure assembly (32) comprises a valve plate (326), a negative pressure air pump (322), an air bottle I (321) arranged on the valve plate (326), a deflation valve I (323) with one end communicated with the air bottle I (321) and the other end communicated with the negative pressure air pump (322), and an air suction valve I (324) with one end communicated with the air bottle I (321) and the other end communicated with the atmosphere.
3. The external negative pressure integrated device according to claim 2, wherein: the negative pressure module (3) comprises positive pressure air pumps (35), and the number of the positive pressure air pumps (35) is equal to that of the negative pressure assemblies (32).
4. The external negative pressure integrated device according to claim 3, wherein: the valve plate (326) is provided with a positive pressure connector (351), and the positive pressure connector (351) is communicated with the positive pressure air pump (35).
5. The external negative pressure integrated device according to any one of claims 2 to 4, wherein: the valve plate (326) is provided with a negative pressure joint I (327), and the negative pressure joint I (327) is communicated with the gas cylinder I (321).
6. The external negative pressure integrated device according to claim 5, wherein: and the valve plate (326) is provided with an electromagnetic valve (325) communicated with the negative pressure joint I (327).
7. The external negative pressure integrated device according to any one of claims 2 to 6, wherein: and a throttle valve I (328) is arranged on the valve plate (326), and the suction valve I (324) is communicated with the atmosphere through the throttle valve I (328).
8. The external negative pressure integrated device according to claim 1, wherein: and a degassing module (4) is arranged in the negative pressure box (1).
9. The external negative pressure integrated device according to claim 8, wherein: the degassing module (4) comprises a high negative pressure generating device (42) and a circuit board II (43).
10. The external negative pressure integrated device according to claim 9, wherein: the high negative pressure generating device (42) comprises a valve block (422), a gas cylinder II (421) arranged on the valve block (422), an air suction valve II (424) and a gas release valve II (423) which are arranged on the valve block (422) and are respectively communicated with the gas cylinder II (421), a vacuum generator (429) communicated with the gas cylinder II (421), and a switch valve (428) connected with the vacuum generator (429).
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| CN202110600988.5A CN113478976B (en) | 2021-05-31 | 2021-05-31 | External negative pressure integrated device |
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| CN202110600988.5A CN113478976B (en) | 2021-05-31 | 2021-05-31 | External negative pressure integrated device |
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Cited By (1)
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| CN115416403A (en) * | 2022-07-29 | 2022-12-02 | 深圳诚拓数码设备有限公司 | Maintenance system for head, inkjet printer, maintenance method, and printing method |
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