CN109177497B - Cleaning device for spray head of ink jet printer and control method thereof - Google Patents

Cleaning device for spray head of ink jet printer and control method thereof Download PDF

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Publication number
CN109177497B
CN109177497B CN201811191452.7A CN201811191452A CN109177497B CN 109177497 B CN109177497 B CN 109177497B CN 201811191452 A CN201811191452 A CN 201811191452A CN 109177497 B CN109177497 B CN 109177497B
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China
Prior art keywords
valve
pipe
pipeline
recovery
electromagnetic valve
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CN109177497A (en
Inventor
颜学斌
徐强
李云峰
蔡超
秦嘉源
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Guangzhou Ec Pack Packaging Equipment Co ltd
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Guangzhou Ec Pack Packaging Equipment Co ltd
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Priority to CN201811191452.7A priority Critical patent/CN109177497B/en
Publication of CN109177497A publication Critical patent/CN109177497A/en
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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
    • B41J2/135—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

The invention provides a cleaning device of a spray head of a code spraying machine and a control method thereof, wherein the device comprises a first adapting pipe joint, a second adapting pipe joint, a third adapting pipe joint, a fourth adapting pipe joint, a cleaning liquid filter, a pump, a back pressure pipe, an air filter, an air pressure switch, an atomizing nozzle, a cleaning liquid tank, a first liquid level meter, a collecting tank, a waste liquid recovery tank, a second liquid level meter and a control device; through the different adaptation pipe joints of configuration, can be suitable for different producer production ink jet numbering machines, the commonality is strong, can wash ink jet numbering machine shower nozzle and other parts voluntarily, and the cleaning process seals and goes on, washs waste liquid automatic collection, and the waste liquid that produces is few, need not the manual work, safe high efficiency.

Description

Cleaning device for spray head of ink jet printer and control method thereof
Technical Field
The invention relates to a cleaning device for a spray head of a code spraying machine and a control method thereof.
Background
Continuous ink jet printers (CIJ) can jet the desired information on most products. Such information may be time, date, production code, bar code, two-dimensional code, consumer information or manufacturer's logo, product tracking information, and other information, etc. Can be widely applied to the industries of medicine, chemical industry, food, building materials, tobacco, ceramics, electronics and the like.
Continuous ink jet printers (CIJ) typically consist of a main body housing and one or more nozzles. The chassis is configured with electronic components, ink systems and power supply modules, a display screen or keyboard, and the like. The nozzle is typically connected to the main body cabinet by a flexible conduit in which the nozzle lines and cables are disposed.
Referring to fig. 1, the inkjet printer operates as follows: the main ink system supplies ink to the spray head through the supply pipe 1, the ink is sprayed from the spray nozzle 3 through the spray cavity 2 under the pressure effect to form a continuous ink flow (usually, the spray hole aperture of the spray nozzle is only tens micrometers or more than 100 micrometers), one side or the outside of the spray cavity 2 is provided with a piezoelectric crystal, the piezoelectric crystal can generate mechanical vibration under the voltage pulse effect provided by the chassis electronic system, so that the ink flow breaks into ink drops at the center of a groove of the charging electrode 4, the ink drops can be charged with proper electric quantity by the charging electrode when being formed, the charged ink drops then fly through the deflection electrode pair 5 with a high-voltage electric field, the charged ink drops deflect from the ink flow in the electric field, a group of ink drops charged according to the requirement are sprayed onto a product passing under the spray nozzle (the movement direction of the product is perpendicular to the deflection direction of the ink drops), the required character or pattern can be formed, the ink drops which do not need to be sprayed are directly sprayed into the recovery groove 6 along the spraying direction, the recovery groove 6 is connected with the ink system through the recovery pipe 7, and the ink system provides negative pressure to recover the ink (usually, the recovery aperture of the recovery groove is about 1 mm). The spray printing process is controlled by the electronic system of the main case, the data to be spray printed are also stored in the electronic element, and the spray printed data are edited and operated through the display screen or the keyboard.
As shown in fig. 1, a CIJ nozzle comprises at least a supply tube 1 for supplying ink, an overflow tube 8, a recovery tube 7, a spray chamber 2, a nozzle 3, a charging electrode 4, a deflection electrode pair 5, a recovery tank 6 and other indispensable elements, and a special solvent pipeline 9 for cleaning the nozzle is designed according to different functional requirements, and micro valves are designed on all pipelines or individual pipelines in some of the CIJ nozzles, and the ink breaks into ink drops, charges, deflects out of an electric field or returns to the recovery tank in a working area from the nozzle to the recovery tank, and the ink is exposed in the working area, and each nozzle is provided with a nozzle cover for covering the whole nozzle, and the nozzle cover is provided with a jet printing hole for enabling the jet printing ink drops to pass through.
Generally, the setting of the parameters of the inkjet printer and the inkjet printer must be obtained by adding ink during production, and the machine is shipped from the factory to require the cleaning of the ink system and the pipeline of the machine as new, so that the cleaning of the inkjet printer and the cleaning of the ink system of the chassis become an indispensable link in the production process of the inkjet printer, and the maintenance of the inkjet printer also often requires cleaning and drying of the inkjet printer to ensure quality and safe transportation. At present, all manufacturers basically finish the cleaning process of the ink system of the machine by adding manual operation, thus the cleaning efficiency is low, the cleaning is not thorough, the cleaning liquid is consumed too much, the cleaning cannot be finished automatically, moreover, when workers perform manual cleaning, the ink, the solvent or the cleaning liquid can cause certain damage to the skin, and the waste liquid generated by the cleaning is easy to cause environmental pollution.
Disclosure of Invention
The invention aims to solve the problems of incomplete cleaning and low cleaning efficiency caused by manual cleaning in the prior art, and provides a cleaning device for a spray head of a code spraying machine and a control method thereof, which can effectively improve the cleaning efficiency.
The cleaning device comprises a supply pipe, an overflow pipe, a recovery pipe, a solvent pipe, a spray cavity, a nozzle, a charging electrode, a deflection electrode pair, a recovery tank and a circuit connection interface;
the supply pipe is connected with one end of the spray cavity, the other end of the spray cavity is connected with the overflow pipe, the spray cavity is fixedly connected with the nozzle, the charging electrode, the deflection electrode pair and the recovery groove are arranged in a matched mode with the nozzle, the solvent pipe is connected with the supply pipe, the recovery pipe is connected with the recovery tank, a supply valve is arranged on the supply pipe, an overflow valve is arranged on the overflow pipe, a recovery valve is arranged on the recovery pipe, a solvent valve is arranged on the solvent pipe, and the supply valve, the overflow valve, the recovery valve and the solvent valve are connected to the circuit connection interface;
the cleaning device comprises a first adapting pipe joint, a second adapting pipe joint, a third adapting pipe joint, a fourth adapting pipe joint, a cleaning liquid filter, a pump, a back pressure pipe, an air filter, an air pressure switch, an atomizing nozzle, a cleaning liquid tank, a first liquid level meter, a collecting tank, a waste liquid recovery tank, a second liquid level meter and a control device;
the cleaning liquid tank is used for containing cleaning liquid, and the waste liquid recovery tank is used for recovering waste liquid after cleaning;
the first liquid level meter is arranged in the cleaning liquid tank, a liquid inlet of the cleaning liquid filter is connected with the cleaning liquid tank through a first pipeline, a liquid outlet of the cleaning liquid filter is connected with the pump through a second pipeline, a liquid outlet end of the pump is connected with a third pipeline, and the back pressure pipe is connected with the third pipeline and the cleaning liquid tank through a circulating pipeline;
the third pipeline is provided with a first branch, a second branch, a third branch and a fourth branch, the tail end of the first branch is provided with a fifth branch and a sixth branch, the tail end of the fifth branch is provided with a first atomizing nozzle, the tail end of the sixth branch is provided with a second atomizing nozzle, the second branch is connected with the supply pipe through a first adapting pipe joint, the third branch is connected with the solvent pipe through a second adapting pipe joint, and the fourth branch is connected with the recovery pipe through a third adapting pipe joint;
the first atomizing nozzle and the second atomizing nozzle are matched with the nozzle, the charging electrode, the deflection electrode pair and the recovery tank;
the waste liquid recovery tank is connected with a fourth pipeline, the overflow pipe is connected with the fourth pipeline through a fourth adapter pipe joint, and the second liquid level meter is arranged in the waste liquid recovery tank;
the collecting tank is arranged below the spray head of the code spraying machine and is connected with the waste liquid recovery tank through a fifth pipeline;
the air filter is connected with the air pressure switch through a first air passage, and the air pressure switch is connected with the third pipeline through a second air passage;
the second air path is provided with a first electromagnetic valve, the third air path is provided with a second electromagnetic valve, the first branch is provided with a third electromagnetic valve, the second branch is provided with a fourth electromagnetic valve, the third branch is provided with a fifth electromagnetic valve, the fourth branch is provided with a sixth electromagnetic valve, and the fourth air path is provided with a seventh electromagnetic valve;
the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the first liquid level meter, the second liquid level meter, the pump and the air pressure switch are all connected with the control device, and the control device is connected with the supply valve, the overflow valve, the recovery valve and the solvent valve through the circuit connection interface;
the control device is used for controlling the first liquid level meter, the second liquid level meter and the air pressure switch to respectively acquire the first liquid level information of the cleaning liquid tank, the second liquid level information of the waste liquid recovery tank and the air pressure information on the first air path, controlling the opening and closing of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve and the seventh electromagnetic valve, and flushing or drying the supply pipe, the overflow pipe, the recovery pipe, the solvent pipe, the spray cavity, the spray nozzle, the charging electrode, the deflection electrode pair, the recovery tank, the supply valve, the overflow valve, the recovery valve and the solvent valve.
Further, the cleaning device further comprises a display device, and the display device is connected with the control device.
Further, the cleaning device further comprises a nozzle fixing seat for fixing the first atomizing nozzle and the second atomizing nozzle.
The control method of the cleaning device of the spray head of the ink-jet printer is applied to the cleaning device of the spray head of the ink-jet printer, and comprises the following steps:
the control device receives an opening starting command and controls the first liquid level meter, the second liquid level meter and the air pressure switch to respectively acquire first liquid level information of the cleaning liquid tank, second liquid level information of the waste liquid recovery tank and air pressure information on a first air path according to the opening starting command;
judging whether the liquid level in the cleaning liquid tank is higher than a first preset liquid level according to the first liquid level information, judging whether the liquid level in the waste liquid recovery tank is lower than a second preset liquid level according to the second liquid level information, and judging whether the air pressure of the first air circuit reaches a preset air pressure value according to the air pressure information;
if the liquid level in the cleaning liquid tank is higher than the first preset liquid level, the liquid level in the waste liquid recovery tank is lower than the second preset liquid level, and the air pressure of the first air passage reaches a preset air pressure value, the control device receives a cleaning control command and controls the opening and closing of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve and the seventh electromagnetic valve, and the supply pipe, the overflow pipe, the recovery pipe, the solvent pipe, the spray cavity, the spray nozzle, the charging electrode, the deflection electrode pair, the recovery tank, the supply valve, the overflow valve, the recovery valve and the solvent valve are washed or dried.
Further, the method further comprises:
the control device starts the pump according to the cleaning control command, so that the cleaning liquid in the cleaning liquid tank flows back to the cleaning liquid tank through the first pipeline, the cleaning liquid filter, the second pipeline, the pump, the third pipeline, the back pressure pipe and the circulating pipeline in sequence.
Further, the cleaning control command comprises a first cleaning control command, and the control device controls to open the second electromagnetic valve, the fifth electromagnetic valve, the seventh electromagnetic valve, the solvent valve, the supply valve and the overflow valve according to the first cleaning control command, and close the first electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the sixth electromagnetic valve and the recovery valve;
the cleaning solution enters a solvent pipe, a solvent valve, a supply pipe, a spray cavity, an overflow pipe and an overflow valve through a first pipeline, a second pipeline, a third pipeline and a third branch pipeline for flushing, and the flushed waste liquid flows into the waste liquid recovery tank through the fourth pipeline;
and then closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, and blowing the compressed air into the solvent pipe, the solvent valve, the supply pipe, the spray cavity, the overflow pipe and the overflow valve through the second air path and the third branch.
Further, the cleaning control command comprises a second cleaning control command, and the control device controls to open a second electromagnetic valve, a fourth electromagnetic valve, a supply valve, an overflow valve and a seventh electromagnetic valve according to the second cleaning control command, and closes the first electromagnetic valve, the third electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the recovery valve and the solvent valve;
the cleaning liquid enters a supply pipe, a supply valve, a spray cavity, an overflow pipe and an overflow valve through a first pipeline, a second pipeline, a third pipeline and a second branch for flushing, and the flushed waste liquid flows into the waste liquid recovery tank through the fourth pipeline;
closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, and enabling compressed air to enter the supply pipe, the supply valve, the spray cavity, the overflow pipe and the overflow valve through the second air path and the second branch for blow-drying;
then, the pump and the second electromagnetic valve are restarted, the first electromagnetic valve is closed, the overflow valve and the seventh electromagnetic valve are closed, and the cleaning liquid enters the supply pipe, the supply valve and the spray cavity through the first pipeline, the second pipeline, the third pipeline and the second branch and is sprayed out from the nozzle, so that the flushing of the supply pipe, the supply valve, the spray cavity and the nozzle is realized;
the waste liquid sprayed out of the nozzle is collected by the collecting tank and flows into the waste liquid recovery tank through a fifth pipeline;
and closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, and enabling compressed air to enter the supply pipe, the supply valve, the spray cavity and the spray nozzle through the second air path and the second branch circuit for drying.
Further, the cleaning control command comprises a third cleaning control command, and the control device opens the second electromagnetic valve, the sixth electromagnetic valve and the recovery valve according to the third cleaning control command, and closes the first electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the seventh electromagnetic valve, the supply valve, the overflow valve and the solvent valve;
cleaning solution enters the recovery pipe and the recovery valve through the first pipeline, the second pipeline, the third pipeline and the fourth branch, is sprayed out of the recovery tank, so that the recovery pipe, the recovery valve and the recovery tank are washed, and the washed waste liquid flows into the waste liquid recovery tank through the fifth pipeline after being collected by the collection tank;
and then closing the pump and the second electromagnetic valve, and opening the first electromagnetic valve, wherein compressed air enters the recovery pipe and the recovery valve through the second air path and the fourth branch, and is sprayed out of the recovery tank, so that the recovery pipe, the recovery valve and the recovery tank are dried.
Further, the cleaning control command comprises a fourth cleaning control command, and the control device opens the second electromagnetic valve and the third electromagnetic valve according to the fourth cleaning control command, and closes the first electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the supply valve, the overflow valve, the solvent valve and the recovery valve;
cleaning liquid is sprayed out of the first atomizing nozzle and the second atomizing nozzle through a first pipeline, a second pipeline, a third pipeline and a first branch, the nozzles, the charging electrode, the deflection electrode pair and the recovery tank are washed, and waste liquid after washing flows into the waste liquid recovery tank through the fifth pipeline after being collected by the collection tank;
and then closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, spraying compressed air from the first atomizing nozzle and the second atomizing nozzle through the second air path and the first branch, and drying the nozzle, the charging electrode, the deflection electrode pair and the recovery tank.
The cleaning device and the control method of the spray head of the ink jet printer provided by the invention at least comprise the following beneficial effects:
(1) The automatic cleaning device is applicable to the production of the inkjet printer nozzle from different factories through the configuration of different adapter pipe connectors, has strong universality, can automatically clean the inkjet printer nozzle and other components, is used for sealing the cleaning process, automatically collects the cleaning waste liquid, has less waste liquid, does not need manual work, and is safe and efficient;
(2) Can carry out multi-loop cleaning singly or in combination, and the cleaning is more thorough.
Drawings
FIG. 1 is a block diagram of one embodiment of a jet of a code printer.
Fig. 2 is a schematic structural diagram of an embodiment of a cleaning device for a nozzle of a code spraying machine.
Fig. 3 is a side view of an embodiment of a cleaning device for a nozzle of a code spraying machine.
Fig. 4 is a schematic diagram of cooperation between an atomizing nozzle of a cleaning device of a spray head of a code spraying machine and the spray head of the code spraying machine.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
Referring to fig. 2-4, the present embodiment provides a cleaning device for a spray head of a code spraying machine, which is applied to the spray head of the code spraying machine, and the spray head of the code spraying machine includes a supply pipe F, an overflow pipe P, a recovery pipe G, a solvent pipe S, a spray cavity a1, a nozzle a2, a charging electrode a3, a deflection electrode pair a4, a recovery tank a5, and a circuit connection interface (not shown in the figure);
the supply pipe F is connected with one end of the spray cavity a1, the other end of the spray cavity a1 is connected with the overflow pipe P, the spray cavity a1 is fixedly connected with the nozzle a2, the charging electrode a3, the deflection electrode pair a4 and the recovery groove a5 are matched with the nozzle a2, the solvent pipe S is connected with the supply pipe F, the recovery pipe G is connected with the recovery groove a5, the supply pipe F is provided with the supply valve PF, the overflow pipe P is provided with the overflow valve PP, the recovery pipe G is provided with the recovery valve PG, the solvent pipe S is provided with the solvent valve PS, and the supply valve PF, the overflow valve PP, the recovery valve PG and the solvent valve PS are connected to a circuit connecting interface;
the cleaning device comprises a first adapter fitting 214, a second adapter fitting 215, a third adapter fitting 216, a fourth adapter fitting 217, a cleaning liquid filter 202, a pump 203, a back pressure pipe 204, an air filter 205, an air pressure switch 206, a first atomizing nozzle 301, a second atomizing nozzle 302, a cleaning liquid tank 501, a first level gauge 502, a collecting tank 601, a waste liquid recovery tank 401, a second level gauge 402, and a control device 101;
the cleaning liquid tank 501 is used for holding cleaning liquid, and the waste liquid recovery tank 401 is used for recovering waste liquid after cleaning;
the first liquid level gauge 502 is arranged in the cleaning liquid tank 501, the liquid inlet of the cleaning liquid filter 202 is connected with the cleaning liquid tank 501 through a first pipeline 701, the liquid outlet of the cleaning liquid filter 202 is connected with the pump 203 through a second pipeline 702, the liquid outlet end of the pump 203 is connected with a third pipeline 703, and the back pressure pipe 204 is connected with the third pipeline 703 and the cleaning liquid tank 501 through a circulating pipeline 700;
the third pipeline 703 is provided with a first branch 7031, a second branch 7032, a third branch 7033 and a fourth branch 7034, the end of the first branch 7031 is provided with a fifth branch 7035 and a sixth branch 7036, the end of the fifth branch 7035 is provided with a first atomizing nozzle 301, the end of the sixth branch 7036 is provided with a second atomizing nozzle 302, the second branch 7032 is connected with the supply pipe F through a first adapting pipe joint 214, the third branch 7033 is connected with the solvent pipe S through a second adapting pipe joint 215, and the fourth branch 7034 is connected with the recovery pipe G through a third adapting pipe joint 216;
the first atomizing nozzle 301 and the second atomizing nozzle 302 are arranged in cooperation with the nozzle a2, the charging electrode a3, the deflection electrode pair a4 and the recovery tank a 5;
the waste liquid recovery tank 401 is connected with a fourth pipeline 704, the overflow pipe P is connected with the fourth pipeline 704 through a fourth adapting pipe joint 217, and the second liquid level meter 402 is arranged in the waste liquid recovery tank 401;
the collecting tank 601 is arranged below the spray head of the ink jet printer, and the collecting tank 601 is connected with the waste liquid recovery tank 401 through a fifth pipeline 705;
the air filter 205 is connected with the air pressure switch 206 through a first air path 801, and the air pressure switch 206 is connected with a third pipeline 703 through a second air path 802;
the second air path 802 is provided with a first electromagnetic valve V1, the third pipeline 703 is provided with a second electromagnetic valve V2, the first branch 7031 is provided with a third electromagnetic valve V3, the second branch 7032 is provided with a fourth electromagnetic valve V4, the third branch 7033 is provided with a fifth electromagnetic valve V5, the fourth branch 7034 is provided with a sixth electromagnetic valve V6, and the fourth pipeline 704 is provided with a seventh electromagnetic valve V5;
the first electromagnetic valve V1, the second electromagnetic valve V2, the third electromagnetic valve V3, the fourth electromagnetic valve V4, the fifth electromagnetic valve V5, the sixth electromagnetic valve V6, the seventh electromagnetic valve V7, the first liquid level gauge 502, the second liquid level gauge 402, the pump 203 and the air pressure switch 206 are all connected with the control device 101, and the control device 101 is connected with the supply valve PF, the overflow valve PP, the recovery valve PG and the solvent valve PS through circuit connection interfaces;
the control device 101 is configured to control the first level gauge 502, the second level gauge 402, and the air pressure switch 206 to collect the first level information of the cleaning liquid tank 501, the second level information of the waste liquid recovery tank 401, and the air pressure information on the first air path 801, and control the opening and closing of the first solenoid valve V1, the second solenoid valve V2, the third solenoid valve V3, the fourth solenoid valve V4, the fifth solenoid valve V5, the sixth solenoid valve V6, and the seventh solenoid valve V7, so as to flush or blow dry the supply pipe F, the overflow pipe P, the recovery pipe G, the solvent pipe S, the spray chamber a1, the spray nozzle a2, the charging electrode a3, the deflection electrode pair a4, the recovery tank a5, the supply valve PF, the overflow valve PP, the recovery valve PG, and the solvent valve PS, respectively.
As a preferred embodiment, the cleaning device provided in this embodiment further includes a display device, where the display device is connected to the control device, and the display device is configured to display an operating state of the cleaning device.
As a preferred embodiment, the cleaning device provided in this embodiment further includes a nozzle fixing base 303 for fixing the first atomizing nozzle 301 and the second atomizing nozzle 302.
Specifically, the circuit connection port is connected to the control device during cleaning, and the first, second, third, and fourth adapter are connected to the supply pipe, the solvent pipe, the recovery pipe, and the overflow pipe, respectively.
The cleaning device is started, the first liquid level meter, the second liquid level meter and the air pressure switch respectively collect the first liquid level information of the cleaning liquid tank, the second liquid level information of the waste liquid recovery tank and the air pressure information on the first air path, and when the pressure does not reach a preset pressure value, the liquid level of the cleaning liquid is too low or the liquid level of the waste liquid is too high, the cleaning device cannot be started.
The cleaning device is started, and the pump is turned on, so that the cleaning liquid in the cleaning liquid tank 501 flows back to the cleaning liquid tank 501 through the first pipe 701, the cleaning liquid filter 202, the second pipe 702, the pump 203, the third pipe 703, the back pressure pipe 204, and the circulation pipe 700 in this order; the cleaning fluid is brought to working pressure by the pump 203, ready for cleaning.
The internal pipeline, valve, spray cavity, nozzle, charging electrode, deflection electrode pair, recovery tank, etc. of the code spraying machine are cleaned separately or in combination, and the cleaning can be continuous or intermittent.
First loop: opening the second, fifth, seventh, and seventh solenoid valves V2, V5, V7, the solvent valve PS, the supply valve PF, and the relief valve PP, and closing the first, third, fourth, sixth, and recovery valves V1, V3, V4, V6, and PG;
the cleaning solution enters the solvent pipe S, the solvent valve PS, the supply valve PF, the supply pipe F, the spray cavity a1, the overflow pipe P and the overflow valve PP through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the third branch 7033 to be washed, and the washed waste liquid flows into the waste liquid recovery tank 401 through the fourth pipeline 704;
then, the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, and the compressed air enters the solvent pipe S, the solvent valve PS, the supply valve PF, the supply pipe F, the spray cavity a1, the overflow pipe P and the overflow valve PP through the second air path 802 and the third branch 7033 for blow drying.
Second circuit: the second solenoid valve V2, the fourth solenoid valve V4, the supply valve PF, the relief valve PP, and the seventh solenoid valve V7 are opened, and the first solenoid valve V1, the third solenoid valve V3, the fifth solenoid valve V5, the sixth solenoid valve V6, the recovery valve PG, and the solvent valve PS are closed;
the cleaning solution enters the supply pipe F, the supply valve PF, the spray cavity a1, the overflow pipe P and the overflow valve PP through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the second branch 7032 for flushing, and the flushed waste liquid flows into the waste liquid recovery tank 401 through the fourth pipeline 704;
closing the pump 203 and the second electromagnetic valve V2, opening the first electromagnetic valve V1, and enabling compressed air to enter the supply pipe F, the supply valve PF, the spray cavity a1, the overflow pipe P and the overflow valve PP through the second air path 802 and the second branch 7032 for blow-drying;
then, the pump 203 and the second electromagnetic valve V2 are restarted, the first electromagnetic valve V1 is closed, the overflow valve PP and the seventh electromagnetic valve V7 are closed, and the cleaning liquid enters the supply pipe F, the supply valve PF and the spray cavity a1 through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the second branch 7032 and is sprayed out from the nozzle a2, so that the supply pipe F, the supply valve PF, the spray cavity a1 and the nozzle a2 are flushed;
the waste liquid ejected through the nozzle a2 is collected by the collecting tank 601 and flows into the waste liquid recovery tank 401 through the fifth pipe 705;
the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, and compressed air enters the supply pipe F, the supply valve PF, the spray cavity a1 and the spray nozzle a2 through the second air path 802 and the second branch 7032 for drying.
Third loop: the second solenoid valve V2, the sixth solenoid valve V6, and the recovery valve PG are opened, and the first solenoid valve V1, the third solenoid valve V3, the fourth solenoid valve V4, the fifth solenoid valve V5, the seventh solenoid valve V7, the supply valve PF, the overflow valve PP, and the solvent valve PS are closed;
cleaning solution enters the recovery pipe G and the recovery valve PG through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the fourth branch 7034, is sprayed out of the recovery tank a5, so that the recovery pipe G, the recovery valve PG and the recovery tank a5 are washed, and waste liquid after washing is collected by the collection tank 601 and flows into the waste liquid recovery tank 401 through the fifth pipeline 705;
and then the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, compressed air enters the recovery pipe G and the recovery valve PG through the second air path 802 and the fourth branch 7034, and is sprayed out of the recovery tank a5, so that the recovery pipe G, the recovery valve PG and the recovery tank a5 are dried.
Fourth loop: opening the second and third solenoid valves V2 and V3, and closing the first, fourth, fifth, sixth, seventh, and seventh solenoid valves V1, V4, V5, V6, V7, the supply valve PF, the overflow valve PP, the solvent valve PS, and the recovery valve PG;
the cleaning solution is sprayed from the first atomizing nozzle 301 and the second atomizing nozzle 302 through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the first branch 7031, the nozzle a2, the charging electrode a3, the deflection electrode pair a4 and the recovery tank a5 are washed, and the washed waste liquid is collected by the collection tank 601 and flows into the waste liquid recovery tank 401 through the fifth pipeline 705;
then, the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, compressed air is sprayed out from the first atomizing nozzle 301 and the second atomizing nozzle 302 through the second air path 802 and the first branch 7031, and the nozzle a2, the charging electrode a3, the deflection electrode pair a4 and the recovery tank a5 are dried.
The cleaning device of ink jet numbering machine shower nozzle that this embodiment provided includes following beneficial effect at least:
(1) The automatic cleaning device is applicable to the production of the inkjet printer nozzle from different factories through the configuration of different adapter pipe connectors, has strong universality, can automatically clean the inkjet printer nozzle and other components, is used for sealing the cleaning process, automatically collects the cleaning waste liquid, has less waste liquid, does not need manual work, and is safe and efficient;
(2) Can carry out multi-loop cleaning singly or in combination, and the cleaning is more thorough.
Example two
Referring to fig. 2-4, the present embodiment provides a control method for a cleaning device of a spray head of an inkjet printer, which is applied to the cleaning device of the spray head of the inkjet printer in the first embodiment, and the method includes:
the control device 101 receives the start-up command and controls the first liquid level gauge 502, the second liquid level gauge 402 and the air pressure switch 206 to respectively acquire the first liquid level information of the cleaning liquid tank 501, the second liquid level information of the waste liquid recovery tank 401 and the air pressure information on the first air path 801 according to the start-up command;
judging whether the liquid level in the cleaning liquid tank 501 is higher than a first preset liquid level according to the first liquid level information, judging whether the liquid level in the waste liquid recovery tank 401 is lower than a second preset liquid level according to the second liquid level information, and judging whether the air pressure of the first air path 801 reaches a preset air pressure value according to the air pressure information;
if the liquid level in the cleaning liquid tank 501 is higher than the first preset liquid level, the liquid level in the waste liquid recovery tank 401 is lower than the second preset liquid level, and the air pressure of the first air path 801 reaches the preset air pressure value, the control device 101 receives a cleaning control command to control the opening and closing of the first, second, third, fourth, fifth, sixth, and seventh solenoid valves V1, V3, V4, V5, V6, and V7, and washes or dries the supply pipe F, the overflow pipe P, the recovery pipe G, the solvent pipe S, the spray chamber a1, the spray nozzle a2, the charge electrode a3, the deflection electrode pair a4, the recovery tank a5, the supply valve PF, the overflow valve PP, the recovery valve PG, and the solvent valve PS.
Specifically, the control device 101 receives the start-up command and starts the cleaning device, and the first level gauge 502, the second level gauge 402, and the air pressure switch 206 collect the first level information of the cleaning liquid tank 501, the second level information of the waste liquid recovery tank 401, and the air pressure information on the first air path 206, respectively, and the cleaning device cannot be started when the pressure does not reach the preset pressure value, the cleaning liquid level is too low, or the waste liquid level is too high.
If the liquid level in the cleaning liquid tank 501 is higher than the first preset liquid level, the liquid level in the waste liquid recovery tank 401 is lower than the second preset liquid level, and the air pressure of the first air passage 801 reaches a preset air pressure value, the control device 101 turns on the pump according to the cleaning control command so that the cleaning liquid in the cleaning liquid tank 501 flows back to the cleaning liquid tank 501 through the first pipe 701, the cleaning liquid filter 202, the second pipe 702, the pump 203, the third pipe 703, the back pressure pipe 204, and the circulation pipe 700 in this order. The cleaning fluid is brought to working pressure by the pump 203, ready for cleaning.
The internal lines, valves, spray chambers, nozzles, charge electrodes, deflection electrode pairs, recovery tanks, etc. of the ink jet printer are then optionally purged, either continuously or intermittently, in four circuits or in a single or combined manner.
The cleaning control command includes a first cleaning control command, and the control device 101 controls to open the second electromagnetic valve V2, the fifth electromagnetic valve V5, the seventh electromagnetic valve V7, the solvent valve PS, the supply valve PF and the overflow valve PP, and close the first electromagnetic valve V1, the third electromagnetic valve V3, the fourth electromagnetic valve V4, the sixth electromagnetic valve V6 and the recovery valve PG according to the first cleaning control command;
the cleaning solution enters the solvent pipe S, the solvent valve PS, the supply valve PF, the supply pipe F, the spray cavity a1, the overflow pipe P and the overflow valve PP through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the third branch 7033 to be washed, and the washed waste liquid flows into the waste liquid recovery tank 401 through the fourth pipeline 704;
then, the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, and the compressed air enters the solvent pipe S, the solvent valve PS, the supply valve PF, the supply pipe F, the spray cavity a1, the overflow pipe P and the overflow valve PP through the second air path 802 and the third branch 7033 for blow drying.
The purge control command includes a second purge control command, and the control device 101 controls to open the second solenoid valve V2, the fourth solenoid valve V4, the supply valve PF, the overflow valve PP, and the seventh solenoid valve V7, and close the first solenoid valve V1, the third solenoid valve V3, the fifth solenoid valve V5, the sixth solenoid valve V6, the recovery valve PG, and the solvent valve PS according to the second purge control command;
the cleaning solution enters the supply pipe F, the supply valve PF, the spray cavity a1, the overflow pipe P and the overflow valve PP through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the second branch 7032 for flushing, and the flushed waste liquid flows into the waste liquid recovery tank 401 through the fourth pipeline 704;
closing the pump 203 and the second electromagnetic valve V2, opening the first electromagnetic valve V1, and enabling compressed air to enter the supply pipe F, the supply valve PF, the spray cavity a1, the overflow pipe P and the overflow valve PP through the second air path 802 and the second branch 7032 for blow-drying;
then, the pump 203 and the second electromagnetic valve V2 are restarted, the first electromagnetic valve V1 is closed, the overflow valve PP and the seventh electromagnetic valve V7 are closed, and the cleaning liquid enters the supply pipe F, the supply valve PF and the spray cavity a1 through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the second branch 7032 and is sprayed out from the nozzle a2, so that the supply pipe, the supply valve, the spray cavity and the nozzle are washed;
the waste liquid ejected from the nozzle a2 is collected by the collecting tank 601 and flows into the waste liquid recovery tank 401 through the fifth pipe 705;
the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, and compressed air enters the supply pipe F, the supply valve PF, the spray cavity a1 and the spray nozzle a2 through the second air path 802 and the second branch 7032 for drying.
The cleaning control command includes a third cleaning control command, and the control device 101 opens the second electromagnetic valve V2, the sixth electromagnetic valve V6, and the recovery valve PG according to the third cleaning control command, and closes the first electromagnetic valve V1, the third electromagnetic valve V3, the fourth electromagnetic valve V4, the fifth electromagnetic valve V5, the seventh electromagnetic valve V7, the supply valve PF, the overflow valve PP, and the solvent valve PS;
cleaning solution enters the recovery pipe G and the recovery valve PG through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the fourth branch 7034, is sprayed out of the recovery tank a5, so that the recovery pipe G, the recovery valve PG and the recovery tank a5 are washed, and waste liquid after washing is collected by the collection tank 601 and flows into the waste liquid recovery tank 401 through the fifth pipeline 705;
and then the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, compressed air enters the recovery pipe G and the recovery valve PG through the second air path 802 and the fourth branch 7034, and is sprayed out of the recovery tank a5, so that the recovery pipe G, the recovery valve PG and the recovery tank a5 are dried.
The cleaning control command includes a fourth cleaning control command, and the control device 101 opens the second electromagnetic valve V2 and the third electromagnetic valve V3 according to the fourth cleaning control command, closes the first electromagnetic valve V1, the fourth electromagnetic valve V4, the fifth electromagnetic valve V5, the sixth electromagnetic valve V6, the seventh electromagnetic valve V7, the supply valve PF, the overflow valve PP, the solvent valve PS, and the recovery valve PG;
the cleaning solution is sprayed from the first atomizing nozzle 301 and the second atomizing nozzle 302 through the first pipeline 701, the second pipeline 702, the third pipeline 703 and the first branch 7031, the nozzle a2, the charging electrode a3, the deflection electrode pair a4 and the recovery tank a5 are washed, and the washed waste liquid is collected by the collection tank 601 and flows into the waste liquid recovery tank 401 through the fifth pipeline 705;
then, the pump 203 and the second electromagnetic valve V2 are closed, the first electromagnetic valve V1 is opened, compressed air is sprayed out from the first atomizing nozzle 301 and the second atomizing nozzle 302 through the second air path 802 and the first branch 7031, and the nozzle a2, the charging electrode a3, the deflection electrode pair a4 and the recovery tank a5 are dried.
The control method of the cleaning device of the inkjet printer nozzle provided by the embodiment at least comprises the following beneficial effects:
(1) The automatic cleaning device is applicable to the production of the inkjet printer nozzle from different factories through the configuration of different adapter pipe connectors, has strong universality, can automatically clean the inkjet printer nozzle and other components, is used for sealing the cleaning process, automatically collects the cleaning waste liquid, has less waste liquid, does not need manual work, and is safe and efficient;
(2) Can carry out multi-loop cleaning singly or in combination, and the cleaning is more thorough.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims (9)

1. The cleaning device for the spray head of the ink-jet printer is characterized by being applied to the spray head of the ink-jet printer, wherein the spray head of the ink-jet printer comprises a supply pipe, an overflow pipe, a recovery pipe, a solvent pipe, a spray cavity, a nozzle, a charging electrode, a deflection electrode pair, a recovery tank and a circuit connection interface;
the supply pipe is connected with one end of the spray cavity, the other end of the spray cavity is connected with the overflow pipe, the spray cavity is fixedly connected with the nozzle, the charging electrode, the deflection electrode pair and the recovery groove are arranged in a matched mode with the nozzle, the solvent pipe is connected with the supply pipe, the recovery pipe is connected with the recovery tank, a supply valve is arranged on the supply pipe, an overflow valve is arranged on the overflow pipe, a recovery valve is arranged on the recovery pipe, a solvent valve is arranged on the solvent pipe, and the supply valve, the overflow valve, the recovery valve and the solvent valve are connected to the circuit connection interface;
the cleaning device comprises a first adapting pipe joint, a second adapting pipe joint, a third adapting pipe joint, a fourth adapting pipe joint, a cleaning liquid filter, a pump, a back pressure pipe, an air filter, an air pressure switch, an atomizing nozzle, a cleaning liquid tank, a first liquid level meter, a collecting tank, a waste liquid recovery tank, a second liquid level meter and a control device;
the cleaning liquid tank is used for containing cleaning liquid, and the waste liquid recovery tank is used for recovering waste liquid after cleaning;
the first liquid level meter is arranged in the cleaning liquid tank, a liquid inlet of the cleaning liquid filter is connected with the cleaning liquid tank through a first pipeline, a liquid outlet of the cleaning liquid filter is connected with the pump through a second pipeline, a liquid outlet end of the pump is connected with a third pipeline, and the back pressure pipe is connected with the third pipeline and the cleaning liquid tank through a circulating pipeline;
the third pipeline is provided with a first branch, a second branch, a third branch and a fourth branch, the tail end of the first branch is provided with a fifth branch and a sixth branch, the tail end of the fifth branch is provided with a first atomizing nozzle, the tail end of the sixth branch is provided with a second atomizing nozzle, the second branch is connected with the supply pipe through a first adapting pipe joint, the third branch is connected with the solvent pipe through a second adapting pipe joint, and the fourth branch is connected with the recovery pipe through a third adapting pipe joint;
the first atomizing nozzle and the second atomizing nozzle are matched with the nozzle, the charging electrode, the deflection electrode pair and the recovery tank;
the waste liquid recovery tank is connected with a fourth pipeline, the overflow pipe is connected with the fourth pipeline through a fourth adapter pipe joint, and the second liquid level meter is arranged in the waste liquid recovery tank;
the collecting tank is arranged below the spray head of the code spraying machine and is connected with the waste liquid recovery tank through a fifth pipeline;
the air filter is connected with the air pressure switch through a first air passage, and the air pressure switch is connected with the third pipeline through a second air passage;
the second air path is provided with a first electromagnetic valve, the third air path is provided with a second electromagnetic valve, the first branch is provided with a third electromagnetic valve, the second branch is provided with a fourth electromagnetic valve, the third branch is provided with a fifth electromagnetic valve, the fourth branch is provided with a sixth electromagnetic valve, and the fourth air path is provided with a seventh electromagnetic valve;
the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the first liquid level meter, the second liquid level meter, the pump and the air pressure switch are all connected with the control device, and the control device is connected with the supply valve, the overflow valve, the recovery valve and the solvent valve through the circuit connection interface;
the control device is used for controlling the first liquid level meter, the second liquid level meter and the air pressure switch to respectively acquire the first liquid level information of the cleaning liquid tank, the second liquid level information of the waste liquid recovery tank and the air pressure information on the first air path, controlling the opening and closing of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve and the seventh electromagnetic valve, and flushing or drying the supply pipe, the overflow pipe, the recovery pipe, the solvent pipe, the spray cavity, the spray nozzle, the charging electrode, the deflection electrode pair, the recovery tank, the supply valve, the overflow valve, the recovery valve and the solvent valve.
2. The cleaning device of a inkjet printer head according to claim 1, further comprising a display device, wherein the display device is connected to the control device.
3. The cleaning device of the inkjet printer head of claim 1, further comprising a nozzle holder for holding the first and second atomizing nozzles.
4. A control method of a cleaning device for a inkjet printer head, characterized by being applied to the cleaning device for a inkjet printer head according to any one of claims 1 to 3, the method comprising:
the control device receives an opening starting command and controls the first liquid level meter, the second liquid level meter and the air pressure switch to respectively acquire first liquid level information of the cleaning liquid tank, second liquid level information of the waste liquid recovery tank and air pressure information on a first air path according to the opening starting command;
judging whether the liquid level in the cleaning liquid tank is higher than a first preset liquid level according to the first liquid level information, judging whether the liquid level in the waste liquid recovery tank is lower than a second preset liquid level according to the second liquid level information, and judging whether the air pressure of the first air circuit reaches a preset air pressure value according to the air pressure information;
if the liquid level in the cleaning liquid tank is higher than the first preset liquid level, the liquid level in the waste liquid recovery tank is lower than the second preset liquid level, and the air pressure of the first air passage reaches a preset air pressure value, the control device receives a cleaning control command and controls the opening and closing of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve and the seventh electromagnetic valve, and the supply pipe, the overflow pipe, the recovery pipe, the solvent pipe, the spray cavity, the spray nozzle, the charging electrode, the deflection electrode pair, the recovery tank, the supply valve, the overflow valve, the recovery valve and the solvent valve are washed or dried.
5. The method of controlling a cleaning device for a inkjet printer head according to claim 4, further comprising:
the control device starts the pump according to the cleaning control command, so that the cleaning liquid in the cleaning liquid tank flows back to the cleaning liquid tank through the first pipeline, the cleaning liquid filter, the second pipeline, the pump, the third pipeline, the back pressure pipe and the circulating pipeline in sequence.
6. The control method of a cleaning device of a inkjet printer head according to claim 5, wherein the purge control command includes a first purge control command, and the control device controls opening of a second solenoid valve, a fifth solenoid valve, a seventh solenoid valve, a solvent valve, a supply valve, and an overflow valve, and closing of a first solenoid valve, a third solenoid valve, a fourth solenoid valve, a sixth solenoid valve, and a recovery valve according to the first purge control command;
the cleaning solution enters a solvent pipe, a solvent valve, a supply pipe, a spray cavity, an overflow pipe and an overflow valve through a first pipeline, a second pipeline, a third pipeline and a third branch pipeline for flushing, and the flushed waste liquid flows into the waste liquid recovery tank through the fourth pipeline;
and then closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, and blowing the compressed air into the solvent pipe, the solvent valve, the supply pipe, the spray cavity, the overflow pipe and the overflow valve through the second air path and the third branch.
7. The control method of a cleaning device of a inkjet printer head according to claim 6, wherein the purge control command includes a second purge control command, and the control device controls opening of a second solenoid valve, a fourth solenoid valve, a supply valve, an overflow valve, and a seventh solenoid valve, and closing of the first solenoid valve, the third solenoid valve, the fifth solenoid valve, the sixth solenoid valve, a recovery valve, and a solvent valve according to the second purge control command;
the cleaning liquid enters a supply pipe, a supply valve, a spray cavity, an overflow pipe and an overflow valve through a first pipeline, a second pipeline, a third pipeline and a second branch for flushing, and the flushed waste liquid flows into the waste liquid recovery tank through the fourth pipeline;
closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, and enabling compressed air to enter the supply pipe, the supply valve, the spray cavity, the overflow pipe and the overflow valve through the second air path and the second branch for blow-drying;
then, the pump and the second electromagnetic valve are restarted, the first electromagnetic valve is closed, the overflow valve and the seventh electromagnetic valve are closed, and the cleaning liquid enters the supply pipe, the supply valve and the spray cavity through the first pipeline, the second pipeline, the third pipeline and the second branch and is sprayed out from the nozzle, so that the flushing of the supply pipe, the supply valve, the spray cavity and the nozzle is realized;
the waste liquid sprayed out of the nozzle is collected by the collecting tank and flows into the waste liquid recovery tank through a fifth pipeline;
and closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, and enabling compressed air to enter the supply pipe, the supply valve, the spray cavity and the spray nozzle through the second air path and the second branch circuit for drying.
8. The control method of the cleaning device of the inkjet printer head according to claim 7, wherein the purge control command includes a third purge control command, and the control device opens the second solenoid valve, the sixth solenoid valve, and the recovery valve, and closes the first solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the seventh solenoid valve, the supply valve, the overflow valve, and the solvent valve according to the third purge control command;
cleaning solution enters the recovery pipe and the recovery valve through the first pipeline, the second pipeline, the third pipeline and the fourth branch, is sprayed out of the recovery tank, so that the recovery pipe, the recovery valve and the recovery tank are washed, and the washed waste liquid flows into the waste liquid recovery tank through the fifth pipeline after being collected by the collection tank;
and then closing the pump and the second electromagnetic valve, and opening the first electromagnetic valve, wherein compressed air enters the recovery pipe and the recovery valve through the second air path and the fourth branch, and is sprayed out of the recovery tank, so that the recovery pipe, the recovery valve and the recovery tank are dried.
9. The control method of a cleaning device of a inkjet printer head according to claim 8, wherein the purge control command includes a fourth purge control command, the control device opens the second solenoid valve and the third solenoid valve according to the fourth purge control command, closes the first solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve, the seventh solenoid valve, the supply valve, the overflow valve, the solvent valve, and the recovery valve;
cleaning liquid is sprayed out of the first atomizing nozzle and the second atomizing nozzle through a first pipeline, a second pipeline, a third pipeline and a first branch, the nozzles, the charging electrode, the deflection electrode pair and the recovery tank are washed, and waste liquid after washing flows into the waste liquid recovery tank through the fifth pipeline after being collected by the collection tank;
and then closing the pump and the second electromagnetic valve, opening the first electromagnetic valve, spraying compressed air from the first atomizing nozzle and the second atomizing nozzle through the second air path and the first branch, and drying the nozzle, the charging electrode, the deflection electrode pair and the recovery tank.
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