CN117774516B - Spray head cleaning machine and cleaning control method thereof - Google Patents
Spray head cleaning machine and cleaning control method thereof Download PDFInfo
- Publication number
- CN117774516B CN117774516B CN202410219482.3A CN202410219482A CN117774516B CN 117774516 B CN117774516 B CN 117774516B CN 202410219482 A CN202410219482 A CN 202410219482A CN 117774516 B CN117774516 B CN 117774516B
- Authority
- CN
- China
- Prior art keywords
- cleaning
- valve
- liquid
- pump
- pressure value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 280
- 239000007921 spray Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 131
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004891 communication Methods 0.000 description 17
- 238000010926 purge Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000004506 ultrasonic cleaning Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a spray head cleaning machine and a cleaning control method thereof, and particularly relates to the technical field of digital printing spray head cleaning machines. The spray head cleaning machine comprises an ultrasonic water tank, a spray head mounting piece and a cleaning pipeline; the spray head mounting piece is arranged in the ultrasonic water tank; the cleaning pipeline comprises a first cleaning pump, a second cleaning pump, a liquid supply pipe, a liquid return pipe and a first pressure sensor, one end of the first cleaning pump is communicated with the liquid supply pipe, the other end of the first cleaning pump is communicated with the ultrasonic water tank, the liquid supply pipe is communicated with the ink inlet end of the nozzle to be cleaned, the liquid return pipe is communicated with the ink outlet end of the nozzle to be cleaned, one end of the second cleaning pump is communicated with the liquid return pipe, the other end of the second cleaning pump is communicated with the ultrasonic water tank, and the first pressure sensor is used for detecting the liquid pressure in the pipeline. The invention improves the structure and the cleaning mode of the spray head cleaning machine, improves the effect of cleaning the spray head, and does not damage the spray head. In addition, the spray head cleaning machine can be suitable for different types of spray heads and is wide in application range.
Description
Technical Field
The invention relates to the technical field of digital printing spray head cleaning machines, in particular to a spray head cleaning machine and a cleaning control method thereof.
Background
Digital printing spray heads are generally applied to occasions where complex patterns or decorations need to be printed on the surface of a product, such as textile printing, ceramic and ceramic tiles, electronic printing and other fields. However, in the use process of the nozzle, the nozzle is inevitably blocked due to the fact that the ink is dry, low-quality ink is used, incorrect maintenance, low printing frequency and the like, and the nozzle is blocked to cause the printing to be stringy.
The existing spray head cleaning machine comprises a pump, a water tank, a connecting pipe and the like, but the pressure and flow of liquid in a pipeline are uncontrollable, and when the hydraulic pressure is too high, irreversible damage to a spray head is easily caused.
Disclosure of Invention
The invention mainly aims to provide a spray head cleaning machine and a cleaning control method thereof, which aim to improve the effect of cleaning spray heads and avoid damaging the spray heads.
In order to achieve the above object, the present invention provides a shower head cleaning machine, comprising:
An ultrasonic wave water tank;
the spray head mounting piece is arranged in the ultrasonic water tank and used for fixing a spray head to be cleaned; and
The cleaning pipeline comprises a first cleaning pump, a second cleaning pump, a liquid supply pipe, a liquid return pipe and a first pressure sensor, wherein one end of the first cleaning pump is communicated with the liquid supply pipe, the other end of the first cleaning pump is communicated with the ultrasonic water tank, the liquid supply pipe is suitable for being communicated with an ink inlet end of a nozzle to be cleaned, the liquid return pipe is suitable for being communicated with an ink outlet end of the nozzle to be cleaned, one end of the second cleaning pump is communicated with the liquid return pipe, the other end of the second cleaning pump is communicated with the ultrasonic water tank, and the first pressure sensor is arranged on the liquid supply pipe or the liquid return pipe and used for detecting the pressure of liquid in the pipeline.
Optionally, the cleaning pipeline includes first communicating pipe, second communicating pipe, third communicating pipe, first valve, second valve, third valve, fourth valve and fifth valve, first communicating pipe intercommunication the feed liquor pipe with return liquor pipe, the third valve is located on the first communicating pipe, the second communicating pipe intercommunication the feed liquor pipe with return liquor pipe just the second communicating pipe with the communication point of feed liquor pipe is located on the pipeline between the communication point of first communicating pipe with the feed liquor pipe and the drain end of feed liquor pipe, the fifth valve is located on the second communicating pipe, the third communicating pipe intercommunication the one end of first cleaning pump with the other end of first cleaning pump just first valve is located on the third communicating pipe, the fourth valve is located on the return liquor pipe, the second valve is located the second with the communication point of feed liquor pipe with on the pipeline between the feed liquor pipe and the feed liquor pipe.
Optionally, the cleaning pipeline further includes a second pressure sensor, the first pressure sensor is disposed on the liquid supply pipe and is used for detecting the liquid pressure output by the first cleaning pump, and the second pressure sensor is disposed on the liquid return pipe and is used for detecting the liquid pressure input to the second cleaning pump.
Optionally, the spray head cleaning machine further comprises a control system, and the control system is electrically connected with the first cleaning pump, the second cleaning pump, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the first pressure sensor and the second pressure sensor respectively.
Optionally, the spray head cleaning machine further comprises a touch display screen, and the touch display screen is electrically connected with the control system.
In order to achieve the above object, the present invention further provides a cleaning control method for a spray head cleaning machine, which is applicable to the spray head cleaning machine, and the cleaning control method comprises the following steps:
After the automatic cleaning instruction is acquired, the first valve, the third valve and the fifth valve are closed, and the first cleaning pump, the second valve and the fourth valve are opened at the same time so as to execute a forward cleaning mode;
collecting a first liquid pressure value output by the first cleaning pump, and collecting a second liquid pressure value input to the second cleaning pump;
According to the first liquid pressure value and the second liquid pressure value, performing analog quantity control on the first cleaning pump and the second cleaning pump in real time so as to enable the first liquid pressure value and the second liquid pressure value to be maintained in a corresponding first preset pressure value range;
after the forward cleaning time exceeds a first target time, closing the fourth valve and the second cleaning pump to enable cleaning liquid to be ejected from a nozzle of a nozzle to be cleaned so as to execute a positive pressure cleaning mode;
adjusting the output power of the first cleaning pump so that the first liquid pressure value reaches a target cleaning pressure value of a nozzle to be cleaned;
After the positive pressure cleaning time exceeds a second target time, controlling the first valve, the second valve and the fourth valve to be closed, and controlling the first cleaning pump, the second cleaning pump, the third valve and the fifth valve to act simultaneously so as to execute a reverse cleaning mode;
according to the first liquid pressure value and the second liquid pressure value, performing analog quantity control on the first cleaning pump and the second cleaning pump in real time so as to enable the first liquid pressure value and the second liquid pressure value to be maintained in a corresponding second preset pressure value range;
And after the reverse cleaning time exceeds a third target time, closing the first cleaning pump, the second cleaning pump, the third valve and the fifth valve to finish cleaning.
Optionally, after the step of acquiring the automatic cleaning instruction, closing the first valve, the third valve and the fifth valve, and simultaneously opening the first cleaning pump, the second valve and the fourth valve, so as to execute the forward cleaning mode, the method further includes:
when the self-checking instruction is obtained, the spray head cleaning machine is subjected to self-checking, and whether each device can respond normally or not is determined.
Optionally, when the self-checking instruction is acquired, the self-checking is performed on the spray head cleaning machine, and in the step of determining whether each device can respond normally, when determining whether the first pressure sensor and the second pressure sensor can respond normally, the following steps are executed:
Controlling the first pressure sensor and the second pressure sensor to work so as to generate a first self-checking pressure signal and a second self-checking pressure signal respectively;
Outputting a normal self-checking result signal responded by the first pressure sensor and the second pressure sensor when the first self-checking pressure signal and the second self-checking pressure signal are linearly changed.
Optionally, the target cleaning pressure value is a maximum pressure value allowed by the nozzle to be cleaned.
Optionally, the first preset pressure value and the second preset pressure value are both 5.0-35.0 kPa, and the target cleaning pressure value is 20.0-125.0 kPa.
In the technical scheme of the invention, the spray head cleaning machine comprises an ultrasonic water tank, a spray head mounting piece and a cleaning pipeline; the spray head mounting piece is arranged in the ultrasonic water tank and is used for fixing the spray head to be cleaned; the cleaning pipeline comprises a first cleaning pump, a second cleaning pump, a liquid supply pipe, a liquid return pipe and a first pressure sensor, one end of the first cleaning pump is communicated with the liquid supply pipe, the other end of the first cleaning pump is communicated with the ultrasonic water tank, the liquid supply pipe is suitable for being communicated with an ink inlet end of a nozzle to be cleaned, the liquid return pipe is suitable for being communicated with an ink outlet end of the nozzle to be cleaned, one end of the second cleaning pump is communicated with the liquid return pipe, the other end of the second cleaning pump is communicated with the ultrasonic water tank, and the first pressure sensor is arranged on the liquid supply pipe or the liquid return pipe and is used for detecting the liquid pressure in the pipeline. It can be understood that through setting up first wash pump and second wash pump to shower nozzle circulation confession liquid, utilize the liquid pressure size in the first pressure sensor real-time detection pipeline simultaneously, make the pressure of the interior washing liquid of pipeline be in suitable range to cooperation ultrasonic wave basin has realized circulating ultrasonic cleaning, not only can effectively improve the effect of wasing the shower nozzle, can also avoid causing the damage to the shower nozzle moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a spray head cleaner according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cleaning operation of an embodiment of a spray head cleaning machine according to the present invention;
FIG. 3 is a flow chart of an embodiment of a method for controlling a shower nozzle cleaning machine according to the present invention.
Reference numerals illustrate:
10. An ultrasonic wave water tank; 20. a spray head mounting member; 31. a first cleaning pump; 32. a second cleaning pump; 33. a liquid supply pipe; 34. a liquid return pipe; 35. a first pressure sensor; 36. a second pressure sensor; 37. a first communication pipe; 38. a second communicating pipe; 39. a third communicating pipe; 41. a first valve; 42. a second valve; 43. a third valve; 44. a fourth valve; 45. a fifth valve; 51. a touch display screen; 100. a spray head; 200. and a case.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a spray head cleaning machine which can be used for cleaning printing spray heads or other articles with liquid inlets and liquid outlets, and is not limited herein.
Referring to fig. 1 and 2, in an embodiment of the present invention, the head washer includes an ultrasonic wave water tank 10, a head mount 20, and a washing pipe; the spray head mounting piece 20 is arranged in the ultrasonic water tank 10 and is used for fixing the spray head 100 to be cleaned; the cleaning pipeline comprises a first cleaning pump 31, a second cleaning pump 32, a liquid supply pipe 33, a liquid return pipe 34 and a first pressure sensor 35, one end of the first cleaning pump 31 is communicated with the liquid supply pipe 33, the other end of the first cleaning pump 31 is communicated with the ultrasonic water tank 10, the liquid supply pipe 33 is suitable for being communicated with the ink inlet end of the nozzle 100 to be cleaned, the liquid return pipe 34 is suitable for being communicated with the ink outlet end of the nozzle 100 to be cleaned, one end of the second cleaning pump 32 is communicated with the liquid return pipe 34, the other end of the second cleaning pump 32 is communicated with the ultrasonic water tank 10, and the first pressure sensor 35 is arranged on the liquid supply pipe 33 or the liquid return pipe 34 and used for detecting the liquid pressure in the pipeline.
In this embodiment, the ultrasonic water tank 10 may preferably be a tank with an ultrasonic function, and the water temperature may be automatically adjusted to a proper temperature and a stable cleaning temperature may be maintained.
The spray head mounting member 20 may be provided with at least one fixing position for fixing the spray head 100 to be cleaned, and when the fixing positions are plural, the corresponding liquid supply pipe 33 and liquid return pipe 34 may be provided with plural groups to achieve simultaneous cleaning of the plurality of spray heads 100, thereby greatly improving cleaning efficiency. Preferably, the nozzle mounting member 20 has a plate-like or block-like structure, and the nozzle mounting member 20 is provided with a nozzle fixing pipe into which one end of the nozzle 100 is inserted, and the nozzle fixing pipe may form part of the pipe of the liquid supply pipe 33 or the liquid return pipe 34.
It can be understood that the first cleaning pump 31 and the second cleaning pump 32 are arranged to circularly supply liquid to the spray head 100, and meanwhile, the first pressure sensor 35 is utilized to detect the pressure of the liquid in the pipeline in real time, so that the pressure of the cleaning liquid in the pipeline is in a proper range, and the ultrasonic water tank 10 is matched to realize the circular ultrasonic cleaning, thereby not only effectively improving the effect of cleaning the spray head 100, but also avoiding damage to the spray head 100.
In order to further improve the cleaning efficiency and effect and reduce damage to the spray head 100, referring to fig. 1 and 2, in an embodiment, the cleaning line may include a first communication pipe 37, a second communication pipe 38, a third communication pipe 39, a first valve 41, a second valve 42, a third valve 43, a fourth valve 44 and a fifth valve 45, where the first communication pipe 37 is connected to the liquid supply pipe 33 and the liquid return pipe 34, the third valve 43 is disposed on the first communication pipe 37, the second communication pipe 38 is connected to the liquid supply pipe 33 and the liquid return pipe 34, and the connection point between the second communication pipe 38 and the liquid supply pipe 33 is located on a line between the connection point between the first communication pipe 37 and the liquid supply pipe 33 and the liquid outlet end of the liquid supply pipe 33, the fifth valve 45 is disposed on the second communication pipe 38, the third communication pipe 39 is connected to one end of the first cleaning pump 31 and the other end of the first cleaning pump 31 and the first valve 41 is disposed on the third communication pipe 39, the fourth valve 44 is disposed on the liquid return pipe 34, and the second valve 42 is disposed on a line between the connection point between the second communication pipe 38 and the liquid supply pipe 33 and the liquid supply pipe 37 and the liquid supply pipe 33.
In this embodiment, the first valve 41, the second valve 42, the third valve 43, the fourth valve 44 and the fifth valve 45 may be manual valves, electromagnetic valves or other electrically operated valves, which are not limited herein.
In an embodiment, as shown in fig. 2, the cleaning pipeline may further include a second pressure sensor 36, where the first pressure sensor 35 is disposed on the liquid supply pipe 33 and is used for detecting the liquid pressure output by the first cleaning pump 31, and the second pressure sensor 36 is disposed on the liquid return pipe 34 and is used for detecting the liquid pressure input to the second cleaning pump 32. In this way, the hydraulic pressure of the cleaning pipeline can be ensured to be in a proper range, which is helpful for further improving the ultrasonic cleaning effect and efficiency and reducing the damage to the nozzle 100 caused by cleaning.
To achieve automatic ultrasonic cleaning, further improve cleaning efficiency and reduce labor costs, referring to fig. 1, in an embodiment, the shower head cleaning machine may further include a control system disposed in the cabinet 200, and the control system is electrically connected to the first cleaning pump 31, the second cleaning pump 32, the first valve 41, the second valve 42, the third valve 43, the fourth valve 44, the fifth valve 45, the first pressure sensor 35 and the second pressure sensor 36, respectively.
In this embodiment, the control system may use a PID controller, and the PID controller, in combination with a pressure sensor, may perform analog quantity control on the cleaning pump, so as to implement real-time adjustment on the pressure in the pipeline, so as to make the pressure in the pipeline linearly change, further prevent severe abrupt pressure change from damaging the nozzle 100, and make the fluctuation range of the pressure after the pipeline is stabilized be ±0.1kpa.
In this embodiment, the shower nozzle cleaning machine may further include a touch display screen 51, where the touch display screen 51 is embedded and installed on the chassis 200 and electrically connected with the control system, and the touch display screen 51 may display information such as pipeline pressure, cleaning time, cleaning mode, etc. in real time, and may also implement man-machine interaction, so that an operator manually selects a cleaning mode, sets cleaning time, etc.
In addition, a plurality of placing racks can be installed on the side of the case 200 for placing the spray heads 100 to be cleaned or after cleaning.
The invention also provides a cleaning control method of the spray head cleaning machine, which is based on the spray head cleaning machine and combines with fig. 1 to 3, and comprises the following steps:
s10, after an automatic cleaning instruction is acquired, closing the first valve 41, the third valve 43 and the fifth valve 45, and simultaneously opening the first cleaning pump 31, the second cleaning pump 32, the second valve 42 and the fourth valve 44 to execute a forward cleaning mode;
s20, collecting a first liquid pressure value output by the first cleaning pump 31 and collecting a second liquid pressure value input to the second cleaning pump 32;
s30, performing analog quantity control on the first cleaning pump 31 and the second cleaning pump 32 in real time according to the first liquid pressure value and the second liquid pressure value so as to maintain the first liquid pressure value and the second liquid pressure value within a corresponding first preset pressure value range;
S40, after the forward cleaning time exceeds the first target time, closing the fourth valve 44 and the second cleaning pump 32 to enable the cleaning liquid to be ejected from the nozzle of the nozzle 100 to be cleaned so as to execute a positive pressure cleaning mode;
S50, adjusting the output power of the first cleaning pump 31 so that the first liquid pressure value reaches the target cleaning pressure value of the nozzle 100 to be cleaned;
S60, after the positive pressure cleaning time period exceeds the second target time, controlling the first valve 41, the second valve 42 and the fourth valve 44 to be closed, and controlling the first cleaning pump 31, the second cleaning pump 32, the third valve 43 and the fifth valve 45 to act simultaneously so as to execute a reverse cleaning mode;
S70, performing analog quantity control on the first cleaning pump 31 and the second cleaning pump 32 in real time according to the first liquid pressure value and the second liquid pressure value so as to maintain the first liquid pressure value and the second liquid pressure value within a corresponding second preset pressure value range;
And S80, after the reverse cleaning time exceeds the third target time, closing the first cleaning pump 31, the second cleaning pump 32, the third valve 43 and the fifth valve 45, and ending the cleaning.
Before cleaning, an operator can first install the spray head 100 on the spray head mounting piece 20, then install the spray head mounting piece 20 in a constant temperature water tank with ultrasonic waves, enable the cleaning liquid in the ultrasonic water tank 10 to just permeate the upper surface of the plate-shaped spray head mounting piece 20, then connect the liquid supply pipe 33 and the liquid return pipe 34 of the spray head cleaning machine with the ink inlet pipe and the ink outlet pipe of the spray head 100 respectively, then manually click the spray head 100 on the screen to select the spray head 100 type to be cleaned, and finally click the automatic cleaning.
Of course, in some other embodiments, when the head washer is equipped with a visual inspection mechanism, the operator need only mount the head 100 to be cleaned on the head mount 20 and turn on the pipe without manually judging the type of the head 100, and then click on the automatic cleaning.
After the start of the cleaning, the process proceeds to a forward cleaning for a period of time, namely: the first, third and fifth valves 41, 43 and 45 are closed and the first, second and fourth pumps 31, 32, 42 and 44 are simultaneously operated. In the process of executing the forward cleaning mode, the cleaning liquid flows from the ultrasonic water tank 10 through the first cleaning pump 31, the second valve 42, the ink inlet end of the nozzle 100, the ink outlet end of the nozzle 100, the fourth valve 44, and the second cleaning pump 32 in sequence, and then flows back into the ultrasonic water tank 10 through the second cleaning pump 32, and circulates in this way. During this time, the system performs analog control on the first cleaning pump 31 and the second cleaning pump 32 in real time according to the data acquired by the first pressure sensor 35 and the second pressure sensor 36, so that the pipeline pressure is always stabilized within the preset value range.
After the forward purge mode continues for a period of time, the positive pressure purge mode is started, that is: the fourth valve 44 and the second cleaning pump 32 are stopped, and the cleaning liquid is discharged through the nozzle of the head 100. During this time, the system controls the first cleaning pump 31 to increase the pressure value of the whole pipeline according to the data collected by the first pressure sensor 35, so that the pressure value reaches the maximum pressure value allowed by the sprayer 100, that is, the target cleaning pressure value is the maximum pressure value allowed by the sprayer 100 to be cleaned.
After the positive pressure purge is continued for a period of time, the system automatically switches to a reverse purge mode, i.e.: the first, second and fourth valves 41, 42 and 44 are closed, and the first, second, third and fifth pumps 31, 32, 43 and 45 are simultaneously operated. In this mode, the cleaning liquid flows from the ultrasonic tank 10 through the first cleaning pump 31, the third valve 43, the ink outlet end of the nozzle 100, the ink inlet end of the nozzle 100, the fifth valve 45, and the second cleaning pump 32 in this order, and then flows back into the ultrasonic tank 10 from the second cleaning pump 32, and circulates. During this time, the system will perform analog control on the first cleaning pump 31 and the second cleaning pump 32 in real time according to the data collected by the first pressure sensor 35 and the second pressure sensor 36, so that the pipeline pressure is always stabilized within the preset value range.
In the automatic cleaning mode, the second valve 42 may be used as a relief valve to protect the spray head 100 when the line pressure exceeds a predetermined value.
In addition, the automatic cleaning mode can be switched in forward cleaning for multiple times, when the whole automatic cleaning is finished, manual positive pressure cleaning can be performed, and the jet flow condition of the nozzle 100 is observed to judge whether the nozzle 100 can be normally used after cleaning. For manual cleaning, it is also necessary to install the shower head 100 and connect the piping. The difference is that the manual cleaning is to separate the whole cleaning step of the automatic cleaning independently, namely: the program operation in the corresponding mode and the actions of the cleaning pump and the valve are consistent with the corresponding mode in the automatic cleaning steps, but the manual cleaning process has no time limitation, and the problem that some spray heads 100 with poor effects after automatic cleaning can be solved by manually setting a certain step to be executed for a longer time is solved. The control of the flow and pressure during the manual cleaning process can also be realized by collecting data through the first pressure sensor 35 and the second pressure sensor 36 and adjusting the first cleaning pump 31 and the second cleaning pump 32 by the control system.
In one embodiment, after the automatic cleaning command is acquired, the first valve 41, the third valve 43 and the fifth valve 45 are closed, and the first cleaning pump 31, the second cleaning pump 32, the second valve 42 and the fourth valve 44 are simultaneously opened, so that the step S10 of executing the forward cleaning mode is further comprised of:
when the self-checking instruction is obtained, the spray head cleaning machine is subjected to self-checking, and whether each device can respond normally or not is determined.
To ensure proper cleaning, the entire cleaning line and device may be inspected prior to cleaning the showerhead 100. Specifically, the liquid supply pipe 33 and the liquid return pipe 34 can be short-circuited, and then the self-checking mode on the screen is clicked to trigger the self-checking program, and the system judges whether the first cleaning pump 31, the first pressure sensor 35, the second pressure sensor 36, the first valve 41, the second valve 42, the third valve 43, the fourth valve 44 and the fifth valve 45 can respond normally according to the data returned by the first pressure sensor 35 and the second pressure sensor 36. When all devices respond normally, the touch display screen 51 displays the completion of self-checking; otherwise, it will be shown which component has a problem.
In this embodiment, when a self-checking instruction is acquired, the self-checking is performed on the shower nozzle cleaning machine, and in the step of determining whether each device can respond normally, when determining whether the first pressure sensor 35 and the second pressure sensor 36 can respond normally, the following steps may be specifically executed:
controlling the first pressure sensor 35 and the second pressure sensor 36 to operate to generate a first self-test pressure signal and a second self-test pressure signal, respectively;
when the first self-checking pressure signal and the second self-checking pressure signal are both in linear change, the first pressure sensor 35 and the second pressure sensor 36 are both output in response to normal self-checking result signals.
That is, whether the first pressure sensor 35 and the second pressure sensor 36 are normal or not is determined by analyzing whether the data returned thereto is linear or not.
In the present invention, thanks to the specific positions of the purge pump, the respective valves and the sensors in the purge line, the whole set of line is made more compact, and the purge pump can be controlled by means of PID control, so that the flow rate and pressure of the fluid before entering the ejection head 100, and the flow rate and pressure of the fluid exiting from the ink outlet end of the ejection head 100 are stabilized within a preset pressure range ±0.1 kpa. In addition, since the pipe integrity is high, there is no need to change the position of the showerhead 100 in various cleaning modes, and thus various parameters can be fine-tuned, such as: pressure, forward cleaning time, positive pressure cleaning time, reverse cleaning time and the like, so that the cleaning modes are more diversified, the suitability is better, and the cleaning effect is better.
In one embodiment, when the self-checking instruction is obtained, the step of self-checking the spray head cleaning machine to determine whether each device can respond normally further comprises:
shooting the nozzle 100 to be cleaned to acquire an image signal;
Judging the type of the nozzle 100 to be cleaned according to the image signal and a preset mapping relation table, and determining a first preset pressure value, a second preset pressure value and a target cleaning pressure value corresponding to the nozzle 100 to be cleaned.
The preset mapping table is stored in the system and includes various common shower head 100 types, corresponding working parameters, cleaning modes and other data.
In this embodiment, a visual detection mechanism may be disposed above the nozzle mounting member 20, and when the nozzle 100 is mounted on the nozzle mounting member 20, the visual detection mechanism may automatically photograph the nozzle, and the system determines whether the nozzle 100 is mounted in place through an image, and after confirming that the nozzle is mounted in place, the ultrasonic water tank 10, the cleaning pump, and other devices are started. The visual detection mechanism can identify the actual type of the sprayer 100, then determine the corresponding working parameters such as a first preset pressure value, a second preset pressure value, a target cleaning pressure value and the like according to the specific type, and can automatically select a corresponding cleaning mode according to the type of the sprayer 100, for example, when the sprayer 100 is the sprayer 100 capable of only conveying liquid in the forward direction, the reverse cleaning mode is not executed; if the nozzle 100 is capable of conveying liquid in both the forward direction and the reverse direction, the nozzle 100 is subjected to reverse cleaning for a period of time, i.e. cleaning liquid flows in from the ink outlet end and flows out from the ink inlet end, and the cleaning is completed after the whole process is repeated for a plurality of times.
Experiments show that when the first preset pressure value and the second preset pressure value are set to be 5.0-35.0 kPa, and the target cleaning pressure value is set to be 20.0-125.0 kPa, the cleaning effect of the spray head 100 is good, and the cleaning requirements of common printing spray heads 100 can be met. Specifically, when the first preset pressure value and the second preset pressure value are 10 kPa, the corresponding target cleaning pressure value may be 25: 25 kPa; when the first preset pressure value and the second preset pressure value are 15 kPa, the corresponding target cleaning pressure value can be 45 kPa; when the first preset pressure value and the second preset pressure value are 20 kPa, the corresponding target cleaning pressure value can be 50 kPa; when the first preset pressure value and the second preset pressure value are 30 kPa, the corresponding target cleaning pressure value may be 120 kPa.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (9)
1. A spray head cleaning machine, comprising:
An ultrasonic wave water tank;
the spray head mounting piece is arranged in the ultrasonic water tank and used for fixing a spray head to be cleaned; and
The cleaning pipeline comprises a first cleaning pump, a second cleaning pump, a liquid supply pipe, a liquid return pipe, a first pressure sensor, a first communicating pipe, a second communicating pipe, a third communicating pipe, a first valve, a second valve, a third valve, a fourth valve and a fifth valve, wherein one end of the first cleaning pump is communicated with the liquid supply pipe, the other end of the first cleaning pump is communicated with the ultrasonic water tank, the liquid supply pipe is suitable for being communicated with an ink inlet end of a nozzle to be cleaned, the liquid return pipe is suitable for being communicated with an ink outlet end of the nozzle to be cleaned, one end of the second cleaning pump is communicated with the liquid return pipe, the other end of the second cleaning pump is communicated with the ultrasonic water tank, the first pressure sensor is arranged on the liquid supply pipe or the liquid return pipe and used for detecting the liquid pressure in the pipeline, the third valve is arranged on the first communicating pipe, the second communicating pipe is suitable for being communicated with an ink inlet end of the nozzle to be cleaned, the liquid return pipe is suitable for being communicated with the liquid return pipe, the second communicating pipe is communicated with the second communicating pipe is arranged at the first communicating pipe, the second communicating pipe is communicated with the first communicating pipe is communicated with the third communicating pipe, the liquid return pipe is communicated with the first communicating pipe is communicated with the liquid pressure in the pipeline.
2. The sprayer cleaning machine of claim 1, wherein the cleaning line further comprises a second pressure sensor, the first pressure sensor is disposed on the supply line and configured to detect a magnitude of the liquid pressure output by the first cleaning pump, and the second pressure sensor is disposed on the return line and configured to detect a magnitude of the liquid pressure input to the second cleaning pump.
3. The spray head washer of claim 2, further comprising a control system electrically connected to the first wash pump, the second wash pump, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the first pressure sensor, and the second pressure sensor, respectively.
4. The spray head cleaning machine of claim 3, further comprising a touch display screen electrically connected to the control system.
5. A cleaning control method of a head cleaning machine, which is applied to the head cleaning machine according to claim 3 or 4, characterized by comprising the steps of:
After the automatic cleaning instruction is acquired, the first valve, the third valve and the fifth valve are closed, and the first cleaning pump, the second valve and the fourth valve are opened at the same time so as to execute a forward cleaning mode;
collecting a first liquid pressure value output by the first cleaning pump, and collecting a second liquid pressure value input to the second cleaning pump;
According to the first liquid pressure value and the second liquid pressure value, performing analog quantity control on the first cleaning pump and the second cleaning pump in real time so as to enable the first liquid pressure value and the second liquid pressure value to be maintained in a corresponding first preset pressure value range;
after the forward cleaning time exceeds a first target time, closing the fourth valve and the second cleaning pump to enable cleaning liquid to be ejected from a nozzle of a nozzle to be cleaned so as to execute a positive pressure cleaning mode;
adjusting the output power of the first cleaning pump so that the first liquid pressure value reaches a target cleaning pressure value of a nozzle to be cleaned;
After the positive pressure cleaning time exceeds a second target time, controlling the first valve, the second valve and the fourth valve to be closed, and controlling the first cleaning pump, the second cleaning pump, the third valve and the fifth valve to act simultaneously so as to execute a reverse cleaning mode;
according to the first liquid pressure value and the second liquid pressure value, performing analog quantity control on the first cleaning pump and the second cleaning pump in real time so as to enable the first liquid pressure value and the second liquid pressure value to be maintained in a corresponding second preset pressure value range;
And after the reverse cleaning time exceeds a third target time, closing the first cleaning pump, the second cleaning pump, the third valve and the fifth valve to finish cleaning.
6. The cleaning control method of claim 5, wherein after the step of executing the forward cleaning mode by closing the first valve, the third valve, and the fifth valve and simultaneously opening the first cleaning pump, the second valve, and the fourth valve after the automatic cleaning command is acquired, further comprising:
when the self-checking instruction is obtained, the spray head cleaning machine is subjected to self-checking, and whether each device can respond normally or not is determined.
7. The cleaning control method according to claim 6, wherein the step of self-checking the head cleaning machine when the self-checking instruction is acquired, determining whether each device can respond normally, when determining whether the first pressure sensor and the second pressure sensor can respond normally, performs the steps of:
Controlling the first pressure sensor and the second pressure sensor to work so as to generate a first self-checking pressure signal and a second self-checking pressure signal respectively;
Outputting a normal self-checking result signal responded by the first pressure sensor and the second pressure sensor when the first self-checking pressure signal and the second self-checking pressure signal are linearly changed.
8. The cleaning control method of claim 5, wherein the target cleaning pressure value is a maximum pressure value allowed by the spray head to be cleaned.
9. The cleaning control method of claim 8, wherein the first preset pressure value and the second preset pressure value are each 5.0 to 35.0 kPa, and the target cleaning pressure value is 20.0 to 125.0 kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410219482.3A CN117774516B (en) | 2024-02-28 | 2024-02-28 | Spray head cleaning machine and cleaning control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410219482.3A CN117774516B (en) | 2024-02-28 | 2024-02-28 | Spray head cleaning machine and cleaning control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117774516A CN117774516A (en) | 2024-03-29 |
| CN117774516B true CN117774516B (en) | 2024-04-26 |
Family
ID=90385749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410219482.3A Active CN117774516B (en) | 2024-02-28 | 2024-02-28 | Spray head cleaning machine and cleaning control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117774516B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19957575A1 (en) * | 1999-11-30 | 2001-06-07 | Tally Computerdrucker Gmbh | Ink-jet printer with cleaning station for at least one nozzle head, includes measuring sensor connected at the suction line between a suction cover and the pump or the used ink container |
| JP2002019068A (en) * | 2000-07-12 | 2002-01-22 | Fuji Photo Film Co Ltd | Method and apparatus for platemaking |
| KR20110044111A (en) * | 2009-10-22 | 2011-04-28 | 신동일 | Meathod and apparatus for cleaning a head of a inkjet system |
| CN102310647A (en) * | 2010-06-30 | 2012-01-11 | 北大方正集团有限公司 | Device and method for cleaning spray head |
| CN103144436A (en) * | 2011-12-06 | 2013-06-12 | 北大方正集团有限公司 | Shower nozzle washing device and washing method |
| JP2015189056A (en) * | 2014-03-27 | 2015-11-02 | 富士フイルム株式会社 | Image formation method and inkjet image formation device |
| CN108143608A (en) * | 2016-06-08 | 2018-06-12 | 武汉佰起科技有限公司 | One kind is smoked to wash instrument and its application method |
| CN109500012A (en) * | 2019-01-14 | 2019-03-22 | 北京机械设备研究所 | A kind of pipeline washing device |
| CN211994704U (en) * | 2019-12-10 | 2020-11-24 | 东莞市友辉光电科技有限公司 | Structure for cleaning nozzle of spraying machine |
| CN117207673A (en) * | 2023-08-10 | 2023-12-12 | 深圳市润天智数字设备股份有限公司 | Shower nozzle cleaning system |
-
2024
- 2024-02-28 CN CN202410219482.3A patent/CN117774516B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19957575A1 (en) * | 1999-11-30 | 2001-06-07 | Tally Computerdrucker Gmbh | Ink-jet printer with cleaning station for at least one nozzle head, includes measuring sensor connected at the suction line between a suction cover and the pump or the used ink container |
| JP2002019068A (en) * | 2000-07-12 | 2002-01-22 | Fuji Photo Film Co Ltd | Method and apparatus for platemaking |
| KR20110044111A (en) * | 2009-10-22 | 2011-04-28 | 신동일 | Meathod and apparatus for cleaning a head of a inkjet system |
| CN102310647A (en) * | 2010-06-30 | 2012-01-11 | 北大方正集团有限公司 | Device and method for cleaning spray head |
| CN103144436A (en) * | 2011-12-06 | 2013-06-12 | 北大方正集团有限公司 | Shower nozzle washing device and washing method |
| JP2015189056A (en) * | 2014-03-27 | 2015-11-02 | 富士フイルム株式会社 | Image formation method and inkjet image formation device |
| CN108143608A (en) * | 2016-06-08 | 2018-06-12 | 武汉佰起科技有限公司 | One kind is smoked to wash instrument and its application method |
| CN109500012A (en) * | 2019-01-14 | 2019-03-22 | 北京机械设备研究所 | A kind of pipeline washing device |
| CN211994704U (en) * | 2019-12-10 | 2020-11-24 | 东莞市友辉光电科技有限公司 | Structure for cleaning nozzle of spraying machine |
| CN117207673A (en) * | 2023-08-10 | 2023-12-12 | 深圳市润天智数字设备股份有限公司 | Shower nozzle cleaning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117774516A (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117774516B (en) | Spray head cleaning machine and cleaning control method thereof | |
| US20150182098A1 (en) | Dishwashing machine and method for controlling the same | |
| CN102587079A (en) | Control method for washing machine with double-inlet function and washing machine using control method | |
| CN112220416B (en) | Liquid supply system, control method of liquid supply system and cleaning robot | |
| DE10242678A1 (en) | Modular domestic machine, especially washing machine, dishwasher or washer dryer, has control/operating unit integrated into separate module for fitting onto base module with basic functional unit | |
| EP2301407A2 (en) | Dishwasher and controlling method thereof | |
| KR101336887B1 (en) | An auto painting device | |
| KR101482023B1 (en) | Controlling method and apparatus for washing water drain of dish washer | |
| DE102008046103B4 (en) | dishwasher | |
| CN113211978A (en) | Full-automatic anti-blocking ink-jet printing system and method | |
| KR20100047952A (en) | Test plate automatic painting device | |
| CN107374536A (en) | The water feeding method of the water tank of dish-washing machine, water tank and dish-washing machine for dish-washing machine | |
| DE102014108868A1 (en) | Method for operating a water-conducting household appliance | |
| EP2286710A2 (en) | Water-guiding household device and method for operating same | |
| CN212238338U (en) | Spray plate detection system | |
| CN110552151B (en) | Washing control method and device of clothes treatment device and clothes treatment device | |
| CN209772987U (en) | Automatic cleaning machine for glassware | |
| CN203811374U (en) | Tap flow testing apparatus | |
| EP3406494B1 (en) | Metering device for a washing facility | |
| EP2052665A1 (en) | Household device with an adjustable fluid distribution device and method for its control | |
| CN217164947U (en) | Automatic electrojet device of three proofings lacquer | |
| CN114508850A (en) | Intelligent temperature control island | |
| CN218080413U (en) | Device for washing and maintaining spray head of binder-jet 3D printer | |
| CN108607857A (en) | A kind of atomizer cleaning equipment | |
| CN209969004U (en) | Automatic change rinse-system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |