CN107264039B - Printing equipment and cleaning control method of spray head - Google Patents
Printing equipment and cleaning control method of spray head Download PDFInfo
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- CN107264039B CN107264039B CN201710524272.5A CN201710524272A CN107264039B CN 107264039 B CN107264039 B CN 107264039B CN 201710524272 A CN201710524272 A CN 201710524272A CN 107264039 B CN107264039 B CN 107264039B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 378
- 239000007921 spray Substances 0.000 title claims abstract description 152
- 238000007639 printing Methods 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 83
- 239000007788 liquid Substances 0.000 claims abstract description 296
- 238000005406 washing Methods 0.000 claims abstract description 39
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
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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
- B41J2/135—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
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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
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- Ink Jet (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The application discloses a printing apparatus and a cleaning control method of a spray head, the printing apparatus comprises a plurality of spray liquid containers which can be used for containing adhesive liquid, a spray head which can be used for spraying the adhesive liquid, and a plurality of first switches, wherein each first switch is arranged in a connecting pipeline of the spray head and one spray liquid container; the cleaning device also comprises a cleaning container capable of containing cleaning liquid and at least one second switch, wherein each second switch is arranged in a connecting pipeline of the spray head and the cleaning container; wherein if the second switch is in a connected state, the adhesion of the adhesion liquid in the head can be reduced by the cleaning liquid in the cleaning container. It can be seen that this application has provided one kind through add the washing container that can be used for holding the washing liquid in the printer, realizes utilizing the washing liquid to reduce the adnexed scheme of adhering to liquid in the shower nozzle, based on reducing the adnexed of adhering to liquid in the shower nozzle, the shower nozzle jam problem of printing apparatus can be solved effectively to this application.
Description
Technical Field
The invention belongs to the technical field of equipment maintenance of printing equipment, and particularly relates to the printing equipment and a cleaning control method of a spray head.
Background
At present, the application of the ink-jet printer is more and more popular, and even enters the household application scene of people. In the scenes such as office scenes or home applications, a nozzle (ink jet head) of an ink jet printer is easy to be blocked due to long-time idling, so that a plurality of printing quality problems such as printing defects, line missing, color missing or image missing can occur when a user uses the ink jet printer again.
At present, the mode of sealing the spray head by using a rubber cover to isolate air when the printer is idle is generally adopted to prevent the spray head from being blocked, but once the blockage is solved, the blockage cannot be solved.
Disclosure of Invention
In view of the above, the present invention is directed to a printing apparatus and a method for controlling cleaning of a head, and aims to better solve the problem of head clogging in an apparatus such as a printer.
Therefore, the invention discloses the following technical scheme:
a printing apparatus comprising:
the liquid spraying device comprises a plurality of liquid spraying containers, a liquid storage container and a liquid spraying device, wherein the liquid spraying containers can be used for containing adhesive liquid, and the adhesive liquid can be adhered to a bearing body to realize printing;
a head connected to the plurality of liquid ejecting containers and adapted to eject the adhering liquid;
the cleaning container is connected with the spray head and can be used for containing cleaning liquid, and the cleaning liquid can reduce the adhesion of the adhesion liquid in the spray head;
a plurality of first switches, each of which is provided in a connecting line of the head and one of the liquid ejecting containers;
at least one second switch, each second switch is arranged in the connecting pipeline of the spray head and one cleaning container;
if the second switch is in a connection state and the first switch is in a disconnection state, the adhesion of the adhesion liquid in the spray head can be reduced by using the cleaning liquid in the cleaning container, and the cleaning liquid is prevented from entering the liquid spraying container.
The above printing apparatus, preferably, the printing apparatus further comprises:
and a cleaning result processor which can be disposed at an outlet position of the head and is used for processing a cleaning result of the adhesive liquid in the head.
The above printing apparatus, preferably, the printing apparatus further comprises:
the moving device is connected with the spray head or the cleaning result processor and is used for changing the relative position relationship between the spray head and the cleaning result processor;
wherein the cleaning result processor is controlled to be arranged at the outlet position of the spray head before the second switch is controlled to be in the connection state.
The above printing apparatus, preferably, the printing apparatus further comprises:
and the pressure regulating device is connected with the cleaning container and is used for regulating the pressure of the cleaning liquid in the cleaning container so as to regulate and reduce the speed of the adhesion liquid in the spray head.
The above printing apparatus, preferably, the printing apparatus further comprises:
at least one vent hole, each vent hole is arranged on a connecting pipeline of the spray head and the cleaning container;
and if the second switch is in an off state and the vent hole is in an open state, the residual cleaning solution in the spray head can be cleaned through the gas communicated with the vent hole.
A cleaning control method of a head for reducing adhering liquid in the head in a printing apparatus as described above, the method comprising:
acquiring a nozzle cleaning instruction;
responding to the spray head cleaning instruction, and executing the following steps:
and controlling to reduce the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container of the printing device, and controlling to prevent the cleaning liquid from entering the liquid spraying container of the printing device.
In the above method, preferably, the obtaining of the nozzle cleaning instruction includes:
when a power-on/off instruction for starting up or shutting down the printing equipment is obtained, a nozzle cleaning instruction is triggered; and/or the presence of a gas in the gas,
triggering a spray head cleaning instruction before the spray instruction is obtained for spraying or after the spray is finished; and/or the presence of a gas in the gas,
and when the operation of triggering the cleaning spray head is detected, generating a spray head cleaning instruction.
The above method, preferably, the controlling to reduce adhesion of an adhering liquid in the head with a cleaning liquid in a cleaning tank of the printing apparatus and to prevent the cleaning liquid from entering a liquid ejection tank of the printing apparatus, includes:
controlling the at least one second switch to be in a connected state so that the adhesion of the adhering liquid in the head is reduced by the cleaning liquid in the cleaning container, and controlling the plurality of first switches to be in an off state so that the cleaning liquid is prevented from entering the liquid ejection container of the printing apparatus; or,
and controlling the pressure regulating device to perform first pressure regulation on the cleaning container so as to reduce the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container, and controlling the plurality of first switches to be in an off state so as to prevent the cleaning liquid from entering the liquid spraying container of the printing device.
In the above method, preferably, before controlling to reduce adhesion of an adhesion liquid in the head by using a cleaning liquid in a cleaning tank of the printing apparatus, the method further includes:
controlling the moving means to move to change a relative positional relationship of the shower head and the washing result handler so that the washing result handler is disposed at an exit position of the shower head.
The above method, preferably, further comprises:
in the process of reducing the adhering liquid in the spray head, controlling the pressure regulating device to perform second pressure regulation on the cleaning container so as to regulate and reduce the speed of the adhering liquid in the spray head;
and when the operation of reducing the adhering liquid in the spray head is finished, controlling the vent hole to be in an open state, so that the residual cleaning liquid in the spray head is cleaned by the gas communicated through the vent hole.
As can be seen from the above, the present application provides a printing apparatus including, in addition to a plurality of liquid ejection containers that can be used to contain an adhering liquid, a head that can be used to eject the adhering liquid, and a plurality of first switches, wherein each first switch is provided in a connecting line of the head and one of the liquid ejection containers; the cleaning device also comprises a cleaning container capable of containing cleaning liquid and at least one second switch, wherein each second switch is arranged in a connecting pipeline of the spray head and the cleaning container; wherein if the second switch is in a connected state, the adhesion of the adhesion liquid in the head can be reduced by the cleaning liquid in the cleaning container. It can be seen that this application has provided one kind through add the washing container that can be used for holding the washing liquid in the printer, realizes utilizing the washing liquid to reduce the adnexed scheme of adhering to liquid in the shower nozzle, based on reducing the adnexed of adhering to liquid in the shower nozzle, the shower nozzle jam problem of printing apparatus can be solved effectively to this application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a first embodiment of a printing apparatus provided in the present application;
fig. 2 is a physical structure diagram of a printing apparatus according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a second embodiment of a printing apparatus provided in the present application;
FIG. 4 is a schematic structural diagram of a third embodiment of a printing apparatus provided in the present application;
fig. 5 is another physical structure diagram of a printing apparatus according to a second embodiment of the present application;
FIG. 6 is a schematic structural diagram of a fourth embodiment of a printing apparatus provided in the present application;
FIG. 7 is a flowchart of a fifth embodiment of a method for controlling cleaning of a showerhead;
FIG. 8 is a flowchart illustrating a sixth embodiment of a method for controlling cleaning of a showerhead;
FIG. 9 is a flow chart of a seventh embodiment of a method for controlling cleaning of a showerhead according to the present disclosure;
fig. 10 is a flowchart of an eighth embodiment of a method for controlling cleaning of a showerhead provided by the present application;
fig. 11 is a flowchart of a ninth embodiment of a method for controlling cleaning of a showerhead according to the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The first embodiment of the present application provides a printing apparatus, which aims to better solve the problem of nozzle blockage of the printing apparatus, the printing apparatus may be various types of inkjet printers, and with reference to a schematic structural diagram of a first embodiment of the printing apparatus of the present application shown in fig. 1, the printing apparatus includes:
and a plurality of liquid ejecting containers 1 capable of containing an adhering liquid, wherein the adhering liquid can adhere to the supporting body to realize printing.
In a colloquial way, the liquid ejecting container may be an ink cartridge (ink cartridge) of a printing apparatus, and is generally of a cartridge type, and the adhering liquid contained in the liquid ejecting container may be ink of a corresponding color, such as black ink or color ink, and the liquid ejecting containers may contain ink of the same color or different colors according to actual needs, for example, 4 ink cartridges (or other number of ink cartridges) are used, such as 4 ink cartridges C, M, Y, K in fig. 2 containing black ink completely, or 4 ink cartridges are used to contain ink of a corresponding color in blue, pink, yellow, black 4 ink, and the like, and the embodiment is not limited thereto.
The carrier is a carrier for carrying printing contents (such as characters or images) based on the adhesive liquid, for example, the carrier can be printing carriers of various papers such as different types of paper, or printing carriers of various cloths such as canvas.
And a head 2 connected to the plurality of liquid ejecting containers and capable of ejecting the adhering liquid.
In an inkjet printer, the head is specifically an inkjet head of the printer, and is configured to eject an adhering liquid such as ink onto a carrier such as paper to generate a desired print such as characters or pictures on the carrier.
The adhering liquid may also adhere to the inner wall of the head or the inner wall of the passage between the head and the liquid ejection container during liquid ejection printing.
And the cleaning container 3 is connected with the spray head and can be used for containing cleaning liquid, and the cleaning liquid can reduce the adhesion of the adhesion liquid in the spray head.
The cleaning container may also be a box-type/bin-type container so as to be capable of containing a cleaning liquid, which may be a liquid such as purified water or a special cleaning agent capable of reducing the adhesion of the adhesion liquid in the head.
And a plurality of first switches 4, each of which is provided in a connecting line of the head and one of the liquid ejecting containers.
The first switch may be an electrically controlled valve or a check valve. The check valve is characterized in that the valve clack is automatically opened and closed by the aid of flowing of a medium, and the check valve only allows the medium to flow in one direction and prevents the medium from flowing in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow.
The number of the first switches is equivalent to the number of the liquid ejecting containers, and each first switch is arranged in a connecting pipeline of the spray head and one liquid ejecting container. Based on the on or off state of the first switch, the adhering liquid in the connecting pipeline of the spray head and the liquid spraying container can be in a circulating or blocking state.
At least one second switch 5, each second switch being arranged in the connecting line of the spray head and one of the washing containers.
The second switch can also be an electric control valve or a check valve, and based on the connection or disconnection state of the second switch, the cleaning liquid in the connecting pipeline between the spray head and the cleaning container can be in a flowing or blocking state.
If the second switch is in a connection state, the adhesion of the adhering liquid in the spray head can be reduced by using the cleaning liquid in the cleaning container, and in the process of reducing the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container, the first switch is in a disconnection state to prevent the cleaning liquid from entering the spray liquid container and avoid liquid backflow.
In a specific implementation, a manifold design may be adopted to design a pipeline between the head and the cleaning vessel, as shown in fig. 2, a manifold may be connected to a connection pipeline between the head and each of the plurality of liquid ejection vessels, and the connected manifold may be connected to the cleaning vessel, for a plurality of connection pipelines between the head and the plurality of liquid ejection vessels, a plurality of manifolds may be connected to the cleaning vessel, and finally the cleaning vessel and the head may be connected through a plurality of pipelines, as shown in fig. 2, for this case, a second switch may be provided on the manifold included in each connection pipeline between the head and the cleaning vessel, so that a corresponding number of second switches may be provided for a plurality of connection pipelines between the head and the cleaning vessel.
In this manner, the cleaning passage and the liquid ejection passage share one passage, and the more the shared portion, the more the cleaning portion. Wherein, under a possible limit condition, can set up first switch at hydrojet container's opening, later connect the hydrojet pipeline to connect the outlet manifold to the cleaning vessel from the position department adjacent with first switch in the hydrojet pipeline directly, this kind of design can make when utilizing the washing liquid to wash the shower nozzle, can realize the washing to the hydrojet pipeline simultaneously, washs comparatively thoroughly.
In addition, can also adopt the mode of independent pipeline, design the pipeline between shower nozzle and the washing container, specifically, can directly connect out an independent pipeline from the shower nozzle and be connected to the washing container to this kind of condition, only set up a second switch on shower nozzle and washing container's independent pipeline can.
As is apparent from the above, the present embodiment provides a printing apparatus including, in addition to a plurality of liquid ejection containers capable of containing an adhering liquid, a head capable of ejecting the adhering liquid, and a plurality of first switches, each of which is provided in a connection pipe between the head and one of the liquid ejection containers; the cleaning device also comprises a cleaning container capable of containing cleaning liquid and at least one second switch, wherein each second switch is arranged in a connecting pipeline of the spray head and the cleaning container; wherein if the second switch is in a connected state, the adhesion of the adhesion liquid in the head can be reduced by the cleaning liquid in the cleaning container. It can be seen that this application has provided one kind through add the washing container that can be used for holding the washing liquid in the printer, realizes utilizing the washing liquid to reduce the adnexed scheme of adhering to liquid in the shower nozzle, based on reducing the adnexed of adhering to liquid in the shower nozzle, the shower nozzle jam problem of printing apparatus can be solved effectively to this application.
Example two
In the second embodiment of the present application, referring to a schematic structural diagram of the second embodiment of the printing apparatus of the present application shown in fig. 3, the printing apparatus may further include:
and a cleaning result processor 6 which is provided at an outlet position of the head and processes a cleaning result of the adhesive liquid in the head.
In the case where, in a process of cleaning the adhering liquid in the head with the cleaning liquid in the cleaning container, for example, in a process of cleaning the ink in the head with the cleaning liquid, a cleaning result liquid (including only the cleaning liquid in the case of cleaning the head and a mixed liquid of the adhering liquid and the cleaning liquid in the case of not cleaning) including at least the cleaning liquid is ejected from the head, and in order to treat the cleaning result liquid based on this, a cleaning result treatment device capable of treating the cleaning result liquid is added to the printing apparatus in this embodiment, so that the cleaning result liquid is prevented from being undesirably flowed out to cause contamination in other areas.
The cleaning result disposer may be an absorption device capable of absorbing a cleaning result liquid, such as a sponge or the like; or an evaporation device capable of evaporating the cleaning result liquid, such as an evaporator; in addition, can also be the container that can accept the washing result to make and utilize washing result treater to absorb, evaporate or accept the washing result liquid, when the concrete realization, washing result treater can have multiple implementation, and this application is not restricted to this.
A moving device 7 connected to the spray head or the cleaning result processor for changing the relative positional relationship between the spray head and the cleaning result processor; wherein the cleaning result processor is controlled to be arranged at the outlet position of the spray head before the second switch is controlled to be in the connection state.
In order to ensure that the cleaning result can be treated (for example, liquid corresponding to the cleaning result is evaporated or absorbed) by the cleaning result treater during the cleaning of the nozzle by the cleaning liquid, the cleaning result treater needs to be arranged at the outlet position of the nozzle before the cleaning is started (relative to the situation that the supporting body needs to be arranged at the outlet position of the nozzle during the process of spraying the adhering liquid to realize the printing), and correspondingly, the printing device needs to be capable of changing the relative position relationship between the nozzle and the cleaning result treater.
In view of this, in the embodiment, a moving device is added to the printing apparatus, and the moving device may be connected to the spray head and/or the cleaning result handler, so that the spray head and/or the cleaning result handler connected to the moving device can be moved in an interlocking manner in the process of controlling the moving device to move, and further, the relative positional relationship between the spray head and the cleaning result handler can be changed. Alternatively, the mobile device may be an electronically controlled mobile device.
Preferably, the moving device may be connected to the cleaning result handler so that the cleaning result handler is moved to change a relative positional relationship between the cleaning result handler and the spray head, for example, to change a position and/or a distance, and the like, thereby enabling the cleaning result handler to be disposed at an outlet position of the spray head before the spray head is cleaned. Preferably, the cleaning result disposer is disposed outside the outlet of the spray head, and the distance is less than a predetermined threshold, such as less than 1cm, or less than 2cm, and so on. In fig. 3, the dashed line between the cleaning result disposer and the spray head indicates that the cleaning result disposer 6 and the spray head are not physically connected to each other, and the cleaning result disposer can be set at the outlet of the spray head only when necessary. In addition, fig. 3 shows only the connection between the mobile device and the washing-result processing device, but the present invention is not limited to this, and in practical applications, the mobile device may be connected to the washing-result processing device and/or the shower head.
In the embodiment, the moving device and the cleaning result processor are arranged in the printing device, so that the cleaning result can be processed in the process of cleaning the adhering liquid in the spray head by using the cleaning liquid, for example, the liquid corresponding to the cleaning result is absorbed or evaporated, and the like, thereby preventing the cleaning result from flowing out arbitrarily to cause pollution of other areas, and avoiding the influence of the cleaning result on the printer.
EXAMPLE III
In the third embodiment of the present application, referring to a schematic structural diagram of a third embodiment of a printing apparatus of the present application shown in fig. 4, the printing apparatus may further include:
and the pressure regulating device 8 is connected with the cleaning container and is used for regulating the pressure of the cleaning liquid in the cleaning container so as to regulate and reduce the speed of the adhesion liquid in the spray head.
The pressure regulating device can be specifically an air pump to realize pressure regulation of cleaning liquid in the cleaning container by performing air pressurization or suction on the cleaning container, so that the speed of the adhering liquid adhering to the nozzle is regulated and reduced, or the pressure regulating device can also be used for starting the cleaning process of the nozzle.
In practical applications, the relative position relationship between the cleaning container and the nozzle in the printing apparatus may be various, for example, the cleaning container may be disposed on the side of the nozzle as shown in fig. 2, or the cleaning container may be disposed on the nozzle as shown in fig. 5, or even the cleaning container may be disposed at any relative position of the nozzle (e.g., disposed under the nozzle), and so on.
Aiming at the condition that the cleaning container is arranged on the spray head, when the second switch is in a communicated state, the cleaning liquid in the cleaning container can be conveyed to the spray head by means of gravity, so that the speed of the adhering liquid adhering to the spray head can be adjusted and reduced only by adopting the pressure regulating device in the process of cleaning the spray head, the start-stop control of the spray head cleaning is not required to be carried out by utilizing the pressure regulating device, for example, the start-stop control or the stop control of the cleaning process can be controlled by specifically combining the gravity factor and controlling the communication or the disconnection of an electric control valve (the second switch).
In this case, that is, in the case where the cleaning container is disposed on the nozzle, it is not excluded that the start and stop of the cleaning process may be controlled by simultaneously controlling the on/off states of the pressure adjusting device and the electrically controlled valve (second switch).
In addition, for the condition that the cleaning container is arranged on the spray head, if the second switch is a non-electric control switch, such as a check valve, the pressure of the cleaning container can be regulated by controlling the pressure regulating device, so that the start and stop of the cleaning process can be controlled, and the second switch is not required to be controlled. Here, it should be noted that the default resistance of the second switch (non-electrically controlled switch) needs to be greater than the pressure of the cleaning liquid when the cleaning container is full of the cleaning liquid, so as to be in a non-cleaning state by default, and then when cleaning needs to be started, the pressure regulating device can be used to pressurize the cleaning liquid, so that the pressure generated by the cleaning liquid is greater than the resistance of the second switch, so as to enter a cleaning state.
In the case that the cleaning container is not arranged on the spray head, for example, the cleaning container is arranged on the side surface, the lower surface or any other non-spray head, except that the speed of the adhesion liquid in the spray head can be adjusted and reduced by the pressure regulating device in the process of reducing the adhesion liquid in the spray head by using the cleaning liquid (namely, in the process of cleaning the spray head by using the cleaning liquid), because the cleaning container is not arranged on the spray head, even if the second switch is communicated, the cleaning liquid in the cleaning container cannot be conveyed to the spray head by gravity, therefore, in this case, the cleaning process needs to be controlled and started by using the pressure regulating device, specifically, the cleaning container can be subjected to air blowing pressurization by using the pressure regulating device, so that the cleaning liquid in the cleaning container is conveyed to the spray head, and the spray head can be cleaned by.
Under this kind of circumstances, if the second switch is the automatically controlled valve, when utilizing the pressure regulating device control to open the cleaning process, need carry out the intercommunication control to the automatically controlled valve simultaneously to guarantee to wash unblocked of pipeline, if the second switch is non-automatically controlled valve like the check valve then only control the pressure regulating device and carry out the pressure boost can, need not to control the check valve.
And when the cleaning is finished, the cleaning process can be finished by stopping the pressurization of the pressure regulating device or performing gas suction on the cleaning container by using the pressure regulating device, wherein if the second switch is an electric control valve, the electric control valve can be controlled to be closed or not closed, and if the second switch is a non-electric control valve, the non-electric control valve does not need to be controlled.
This embodiment can make the pressure regulation function who utilizes the pressure regulation device through set up the pressure regulation device in printing apparatus, comes to open the shower nozzle cleaning process of printing apparatus and stops control, perhaps adjusts and reduces the adnexed speed of adhering to liquid in the shower nozzle, has richened printing apparatus's function.
Example four
In the fourth embodiment of the present application, referring to a schematic structural diagram of a fourth embodiment of a printing apparatus of the present application shown in fig. 6, the printing apparatus may further include:
at least one vent hole 9, each vent hole is arranged on a connecting pipeline of the spray head and the cleaning container; and if the second switch is in an off state and the vent hole is in an open state, the residual cleaning solution in the spray head can be cleaned through the gas communicated with the vent hole.
In the embodiment, the vent hole is arranged on the connecting pipeline between the spray head and the cleaning container, so that when the spray head is cleaned by using the cleaning liquid, the residual cleaning liquid in the spray head is cleaned by the gas communicated with the vent hole.
In a specific implementation, the function of the vent hole may be implemented in the form of, but not limited to, an electrically controlled valve, where, as shown in fig. 5, one channel of an electrically controlled four-channel valve is used as the vent hole in fig. 5, where three channels included in the electrically controlled four-channel valve are respectively connected to the liquid spraying container, the cleaning container and the head, and the remaining channel is used as the vent hole, and the vent hole is generally closed during the liquid spraying printing or cleaning of the head, and after the head is cleaned, the vent hole may be controlled to be open, so that the residual cleaning liquid in the head is cleaned by the gas communicated with the vent hole.
This embodiment can be so that when finishing the washing of shower nozzle, the residual cleaning liquid in the shower nozzle is cleared up to the gas that utilizes the air vent intercommunication through setting up the air vent on shower nozzle and the connecting pipeline of washing container to reduced the residual cleaning liquid in the shower nozzle to printing apparatus's harmful effects, for example can reduce the dilution hidden danger of the adhering liquid when residual cleaning liquid prints follow-up hydrojet, can reduce because of residual cleaning liquid leads to printing apparatus moist hidden danger etc..
EXAMPLE five
In a fifth embodiment of the present application, a method for controlling cleaning of a nozzle is provided, where the method is used to reduce adhering liquid in the nozzle in a printing apparatus provided in the foregoing embodiments, and with reference to a flowchart of a fifth embodiment of a method for controlling cleaning of a nozzle shown in fig. 7, the method may include:
and 701, acquiring a nozzle cleaning instruction.
The nozzle cleaning instruction can be obtained through the following processing procedures:
when a power-on/off instruction for starting up or shutting down the printing equipment is obtained, a nozzle cleaning instruction is triggered; and/or the presence of a gas in the gas,
triggering a spray head cleaning instruction before the spray instruction is obtained for spraying or after the spray is finished; and/or the presence of a gas in the gas,
and when the operation of triggering the cleaning spray head is detected, generating a spray head cleaning instruction.
That is, the nozzle of the printing apparatus may be cleaned at a time point of the on/off operation of the printing apparatus, such as after the printing apparatus is turned on (before printing is executed) or before the printing apparatus is turned off; or cleaning the spray head before or after the spray printing is finished in the running process of the printing equipment; or may also perform head cleaning when a user performs a head cleaning control operation through an external apparatus such as a computer or performs a head cleaning control operation on a printing apparatus; alternatively, any combination of the above-described nozzle cleaning operations may be performed at various timings, which is not limited in this embodiment.
The method can be specifically realized by a processor or a mainboard controller in the printing equipment.
Step 702, responding to the spray head cleaning instruction, and executing the following steps: and controlling to reduce the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container of the printing device, and controlling to prevent the cleaning liquid from entering the liquid spraying container of the printing device.
After the nozzle cleaning instruction is obtained, the instruction needs to be responded.
Specifically, the adhesion of the adhering liquid to the head can be reduced by the cleaning liquid in the cleaning container, so that the head of the printing apparatus can be cleaned, and in the process of reducing the adhesion of the adhering liquid to the head by the cleaning liquid in the cleaning container, that is, in the process of cleaning the head of the printing apparatus by the cleaning liquid, in order to avoid the cleaning liquid from entering the liquid spraying container of the printing apparatus, that is, in order to avoid the backflow phenomenon, the cleaning liquid can be controlled to be prevented from entering the liquid spraying container of the printing apparatus.
As can be seen from the above solutions, in the method for controlling cleaning of a nozzle provided in this embodiment, after obtaining a nozzle cleaning instruction, the following steps are performed in response to the nozzle cleaning instruction: and controlling to reduce the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container of the printing device, and controlling to prevent the cleaning liquid from entering the liquid spraying container of the printing device. Therefore, the method of the application provides that the cleaning liquid in the cleaning container additionally arranged in the printing equipment is utilized to reduce the adhesion of the adhesion liquid in the spray head, and the application can effectively solve the problem of spray head blockage of the printing equipment based on the reduction of the adhesion liquid in the spray head. .
EXAMPLE six
In a sixth embodiment of the present application, a possible implementation of the step 102 of controlling to reduce adhesion of the adhering liquid in the ejection head by using the cleaning liquid in the cleaning container of the printing apparatus and controlling to prevent the cleaning liquid from entering the liquid ejection container of the printing apparatus is provided, and with reference to a flowchart of a sixth embodiment of a method for controlling cleaning of an ejection head shown in fig. 8, the step 102 may be implemented by:
and 1021, controlling the at least one second switch to be in a connection state so as to reduce the adhesion of the adhesion liquid in the spray head by using the cleaning liquid in the cleaning container, and controlling the plurality of first switches to be in a disconnection state so as to prevent the cleaning liquid from entering the spray container of the printing device.
In the embodiment, the second switch is controlled to be in the on-off state, that is, the second switch is controlled to be in the on-off state, so that the adhesion of the adhering liquid in the spray head is reduced by using the cleaning liquid in the cleaning container, and meanwhile, in order to prevent the cleaning liquid from entering the liquid spraying container of the printing device and avoid the backflow phenomenon, the first switch on the connecting pipeline between the spray head and the plurality of liquid spraying containers can be controlled to be in the off state.
The manner of this embodiment may be applicable to a case where the cleaning liquid is delivered to the nozzle by gravity to clean the nozzle, specifically, as shown in fig. 5, for a relative position relationship between the nozzle and the cleaning container shown in fig. 5, the manner of this embodiment may be adopted to reduce adhesion of the adhesion liquid in the nozzle by controlling the second switch to be in a communication state, and in the manner of this embodiment, the second switch is more suitable for selecting the electrically controlled valve.
EXAMPLE seven
In the seventh embodiment of the present application, another possible implementation of the step 102 of controlling to reduce adhesion of the adhering liquid in the ejection head by using the cleaning liquid in the cleaning container of the printing apparatus and controlling to prevent the cleaning liquid from entering the liquid ejection container of the printing apparatus is provided, and with reference to a flowchart of a seventh embodiment of a method for controlling cleaning of an ejection head shown in fig. 9, the step 102 may be implemented by:
and step 1022, controlling the pressure regulating device to perform first pressure regulation on the cleaning container so as to reduce the adhesion of the adhesion liquid in the spray head by using the cleaning liquid in the cleaning container, and controlling the plurality of first switches to be in an off state so as to prevent the cleaning liquid from entering a liquid spraying container of the printing device.
In this embodiment, the pressure adjusting device is controlled to perform the first pressure adjustment on the cleaning container, for example, an air pump is used to blow air to the cleaning container for pressurization, so as to reduce the adhesion of the adhesion liquid in the spray head by using the cleaning liquid in the cleaning container, that is, the cleaning is started by the pressure adjusting device, and meanwhile, in order to prevent the cleaning liquid from entering the liquid spraying container of the printing apparatus, the backflow phenomenon is avoided, and the first switch on the connecting pipeline between the spray head and the plurality of liquid spraying containers can be controlled to be in an off state.
The mode of this embodiment, be more applicable to and can't rely on gravity to the shower nozzle to carry the washing liquid in order to realize the abluent condition of shower nozzle, can refer to as specifically shown in fig. 2, to the relative position relation of shower nozzle and washing container that fig. 2 shows, can adopt this embodiment mode to blow the pressure boost to washing container through controlling the pressure regulating device, realize utilizing the washing liquid in the washing container to reduce the adhering to of adhering to liquid in the shower nozzle, in the mode of this embodiment the check valve or electrically controlled valve can be selected to the second switch, wherein, if select electrically controlled valve, then when controlling the pressure regulating device and carrying out the pressure boost, need control valve simultaneously and be in the connected state to guarantee that the pipeline between washing container and shower nozzle is unblocked.
Certainly, in the case that the cleaning liquid can be conveyed to the spray head by gravity to clean the spray head, it is not excluded that the cleaning can still be started by adopting the pressure regulating device, for example, when the second switch is an electric control switch, the cleaning process can be started by simultaneously controlling the pressure regulating device and the electric control switch (the second switch); or when the second switch is a non-electrically controlled switch such as a check valve, the cleaning process can be started by controlling the pressure regulating device to regulate the pressure of the cleaning container, where it should be noted that the default resistance of the second switch (the non-electrically controlled switch) needs to be greater than the pressure of the cleaning liquid when the cleaning container is filled with the cleaning liquid, so as to be in a non-cleaning state by default, and subsequently when cleaning needs to be started, the cleaning liquid can be pressurized by using the pressure regulating device, so that the pressure generated by the cleaning liquid is greater than the resistance of the second switch, so as to enter the cleaning state.
In concrete implementation, any one of the two modes provided by the application can be selected according to actual requirements, so that the cleaning liquid in the cleaning container is utilized to reduce the adhesion of the adhesion liquid in the spray head, and the application is not limited to the method.
Example eight
In an eighth embodiment of the present application, referring to the flowchart of an eighth embodiment of the method for controlling cleaning of a spray head shown in fig. 10, before the step 102, the method may further include:
and 103, controlling the moving device to move so as to change the relative position relationship between the spray head and the cleaning result processor, so that the cleaning result processor is arranged at the outlet position of the spray head.
In a process of cleaning the head with the cleaning liquid in the cleaning container, for example, in a process of cleaning the ink in the head with the cleaning liquid, a cleaning result liquid (including only the cleaning liquid in a case of cleaning the head and a mixed liquid of the adhering liquid and the cleaning liquid in a case of not cleaning) including at least the cleaning liquid is ejected from the head, and in this case, the cleaning result liquid is disposed to prevent the cleaning result from flowing out unintentionally and causing contamination of other areas. Before controlling the adhesion of the adhering liquid to the head by the cleaning liquid in the cleaning vessel, that is, before the head cleaning is performed, it is necessary to provide a cleaning result handler at the outlet position of the head.
The relative positional relationship between the nozzle and the cleaning result disposer is changed by moving a moving device in the printing apparatus so that the nozzle and/or the cleaning result disposer connected to the moving device are moved in an interlocking manner until the cleaning result disposer is set at an outlet position of the nozzle by changing the relative positional relationship.
In a specific implementation, the moving device may be connected to the cleaning result handler, so that the cleaning result handler is moved to change a relative positional relationship between the cleaning result handler and the spray head, such as changing a position and/or changing a distance, and further, the cleaning result handler may be disposed at an outlet position of the spray head before the spray head is cleaned. Preferably, the cleaning result disposer is disposed outside the outlet of the spray head, and the distance is less than a predetermined threshold, such as less than 1cm, or less than 2cm, and so on.
On the basis, in the process of cleaning the spray head by using the cleaning liquid, the cleaning result can be treated by using a cleaning result treater arranged at the outlet of the spray head, for example, when the cleaning result treater is a sponge, an evaporator or a container, the cleaning result liquid can be absorbed, evaporated or received by using the cleaning result treater.
This embodiment is through before carrying out the shower nozzle washing, with the setting of cleaning result treater in the exit position department of shower nozzle, can realize utilizing the washing liquid to wash the shower nozzle in-process, can handle the cleaning result, for example absorb or evaporate the liquid that the cleaning result corresponds etc to prevented that the cleaning result from flowing wantonly, caused the pollution in other regions, avoided the printer to receive the influence of cleaning result.
Example nine
In an embodiment ninth of the present application, with reference to the flowchart of an eighth embodiment of the method for controlling cleaning of a spray head shown in fig. 11, the method may further include:
and 104, in the process of reducing the adhering liquid in the spray head, controlling the pressure regulating device to perform second pressure regulation on the cleaning container so as to regulate and reduce the speed of the adhering liquid in the spray head.
In the process of reducing the adhering liquid in the spray head, namely in the process of cleaning the spray head by using the cleaning liquid, the speed of reducing the adhering liquid in the spray head, namely the speed of cleaning the spray head, can be adjusted by controlling the pressure adjusting device to execute second pressure adjustment on the cleaning container.
Specifically, for example, the speed of cleaning the spray head by using the cleaning liquid can be increased by controlling the air pump to perform air-blowing pressurization on the cleaning container, or the air pump is controlled to perform suction on the cleaning container, so that the pressure of the cleaning container is reduced, and the speed of cleaning the spray head by using the cleaning liquid is reduced.
And 105, when the operation of reducing the adhering liquid in the spray head is finished, controlling the vent hole to be in an open state, so that the residual cleaning liquid in the spray head is cleaned by the gas communicated with the vent hole.
When the operation of reducing the adhering liquid in the nozzle is finished, that is, the nozzle cleaning process is finished, for example, when the cleaning of the nozzle is finished by controlling the electrically controlled valve or by controlling the pressure regulating device, in order to further clean the residual cleaning liquid in the nozzle, the vent hole in the printing device may be controlled to be in an open state, so that the residual cleaning liquid in the nozzle is cleaned by the gas communicated with the vent hole.
This embodiment is through in the washing shower nozzle in-process, utilize the regulator to adjust the speed that reduces the adhering liquid in the shower nozzle, further richened printing apparatus's function, in addition, this embodiment is when finishing the shower nozzle and wasing, through the remaining washing liquid in the gaseous clearance shower nozzle that utilizes the air vent intercommunication, can reduce the adverse effect of remaining washing liquid in the shower nozzle to printing apparatus, for example can reduce the dilution hidden danger of adhering liquid when remaining washing liquid prints follow-up hydrojet, can reduce because of remaining washing liquid leads to the moist hidden danger of printing apparatus etc..
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
For convenience of description, the above system or apparatus is described as being divided into various modules or units by function, respectively. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
Finally, it is further noted that, herein, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A printing apparatus, comprising:
the liquid spraying device comprises a plurality of liquid spraying containers, a liquid storage container and a liquid spraying device, wherein the liquid spraying containers can be used for containing adhesive liquid, and the adhesive liquid can be adhered to a bearing body to realize printing;
a head connected to the plurality of liquid ejecting containers and adapted to eject the adhering liquid;
the cleaning container is connected with the spray head and can be used for containing cleaning liquid, and the cleaning liquid can reduce the adhesion of the adhesion liquid in the spray head;
a plurality of first switches, each of which is provided in a connecting line of the head and one of the liquid ejecting containers;
at least one second switch, each second switch is arranged in the connecting pipeline of the spray head and one cleaning container;
if the second switch is in a connection state and the first switch is in a disconnection state, the adhesion of the adhesion liquid in the spray head can be reduced by using the cleaning liquid in the cleaning container, and the cleaning liquid is prevented from entering the liquid spraying container;
the pressure regulating device is connected with the cleaning container and can regulate the speed of reducing the adhering liquid in the spray head on the basis of pressure regulation generated by gas pressurization or suction on the cleaning container on the premise of starting the cleaning process of the spray head and in the process of reducing the adhering liquid in the spray head to realize spray head cleaning; the pressure regulating device can be used for controlling the start and stop of the cleaning process of the spray head by regulating the pressure of the cleaning container under the condition that the second switch is a preset switch, so that the start and stop of the cleaning process can be controlled without controlling the second switch.
2. The printing apparatus according to claim 1, further comprising:
and a cleaning result processor which can be disposed at an outlet position of the head and is used for processing a cleaning result of the adhesive liquid in the head.
3. The printing apparatus according to claim 2, further comprising:
the moving device is connected with the spray head or the cleaning result processor and is used for changing the relative position relationship between the spray head and the cleaning result processor;
wherein the cleaning result processor is controlled to be arranged at the outlet position of the spray head before the second switch is controlled to be in the connection state.
4. The printing apparatus according to claim 1, further comprising:
at least one vent hole, each vent hole is arranged on a connecting pipeline of the spray head and the cleaning container;
and if the second switch is in an off state and the vent hole is in an open state, the residual cleaning solution in the spray head can be cleaned through the gas communicated with the vent hole.
5. A cleaning control method for a head, for reducing an adhering liquid in the head in the printing apparatus according to any one of claims 1 to 4, the method comprising:
acquiring a nozzle cleaning instruction;
responding to the spray head cleaning instruction, and executing the following steps:
and controlling to reduce the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container of the printing device, and controlling to prevent the cleaning liquid from entering the liquid spraying container of the printing device.
6. The method of claim 5, wherein obtaining showerhead purge instructions comprises:
when a power-on/off instruction for starting up or shutting down the printing equipment is obtained, a nozzle cleaning instruction is triggered; and/or the presence of a gas in the gas,
triggering a spray head cleaning instruction before the spray instruction is obtained for spraying or after the spray is finished; and/or generating a spray head cleaning instruction when the operation of triggering the cleaning spray head is detected.
7. The method according to claim 5, wherein the controlling reduces adhesion of an adhering liquid in the head with a cleaning liquid in a cleaning tank of the printing apparatus and controls prevention of the cleaning liquid from entering a liquid ejection tank of the printing apparatus, comprises:
controlling the at least one second switch to be in a connected state so that the adhesion of the adhering liquid in the head is reduced by the cleaning liquid in the cleaning container, and controlling the plurality of first switches to be in an off state so that the cleaning liquid is prevented from entering the liquid ejection container of the printing apparatus; or,
and controlling the pressure regulating device to perform first pressure regulation on the cleaning container so as to reduce the adhesion of the adhering liquid in the spray head by using the cleaning liquid in the cleaning container, and controlling the plurality of first switches to be in an off state so as to prevent the cleaning liquid from entering the liquid spraying container of the printing device.
8. The method of claim 5, further comprising, prior to controlling the reducing of the adhesion liquid in the ejection head with the cleaning liquid in the cleaning container of the printing apparatus:
controlling a moving device connected to the spray head or the washing result handler to move to change a relative positional relationship of the spray head and the washing result handler so that the washing result handler is disposed at an outlet position of the spray head.
9. The method of claim 5, further comprising:
in the process of reducing the adhering liquid in the spray head, controlling the pressure regulating device to perform second pressure regulation on the cleaning container so as to regulate and reduce the speed of the adhering liquid in the spray head;
and when the operation of reducing the adhering liquid in the spray head is finished, controlling a vent hole arranged on a connecting pipeline of the spray head and the cleaning container to be in an open state, so that the residual cleaning liquid in the spray head is cleaned by the gas communicated through the vent hole.
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| CN108394182B (en) * | 2018-03-05 | 2020-03-10 | 广东科达洁能股份有限公司 | Ceramic ink-jet printer nozzle cleaning control system |
| CN109356015A (en) * | 2018-11-27 | 2019-02-19 | 上海展富交通设施工程有限公司 | Spot printing nozzle system, point automatic doubler surface glouer and control method |
| CN110271295B (en) * | 2019-07-17 | 2021-01-15 | 深圳市华星光电半导体显示技术有限公司 | OLED ink-jet printing device and control method thereof |
| CN110978797B (en) * | 2019-11-27 | 2021-11-02 | 深圳市华星光电半导体显示技术有限公司 | Ink box |
| CN114192482A (en) * | 2020-09-18 | 2022-03-18 | 中国科学院微电子研究所 | Cleaning system and cleaning method for gas nozzle |
| CN113459681A (en) | 2021-06-29 | 2021-10-01 | Tcl华星光电技术有限公司 | Ink jet printing apparatus |
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