CN112319068A - Intelligent ink path pressure control system of ink-jet printing equipment and control method thereof - Google Patents
Intelligent ink path pressure control system of ink-jet printing equipment and control method thereof Download PDFInfo
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- CN112319068A CN112319068A CN202010989823.7A CN202010989823A CN112319068A CN 112319068 A CN112319068 A CN 112319068A CN 202010989823 A CN202010989823 A CN 202010989823A CN 112319068 A CN112319068 A CN 112319068A
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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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
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Abstract
The application discloses an intelligent ink path pressure control system of ink-jet printing equipment, which comprises a circulating ink path and an intelligent pressure control device for controlling the circulating ink path, wherein the circulating ink path comprises a first main ink box, a second main ink box, a first buffer ink box, a second buffer ink box, an ink supply box and a diaphragm pump; the intelligent pressure control device comprises a rotating speed adjusting device for controlling the rotating speed of the diaphragm pump; the first buffer ink box is connected to the first main ink box through a pipeline, and the second buffer ink box is connected to the second main ink box through a pipeline; the diaphragm pump comprises an ink supply pump, a circulating pump and a reflux pump; the reflux pump is matched with the rotating speed adjusting device and controls the flow difference between the ink supply pump and the circulating pump. The ink path has stable negative pressure in several working states and high ink jetting quality.
Description
Technical Field
The application relates to the technical field of ink-jet printing, in particular to an intelligent ink path pressure control system of ink-jet printing equipment and a control method thereof.
Background
The ejection quality of the ejection head is a key parameter of all inkjet printing apparatuses, and the pressure control stability of the ink path is one of the main factors directly influencing the ejection quality. The modern industrial ink jet equipment generally adopts a piezoelectric nozzle, and the operating principle of the pressure point nozzle is that when no jet command is received, liquid in the nozzle keeps ink in the nozzle by means of the pressure difference between the internal pressure of the nozzle and the external atmospheric pressure, and meanwhile, a certain 'moon curved surface' is required to be kept to ensure the jet quality; when a jetting command is received, the pressure wave generated by the piezoelectric ejects the internal ink.
Therefore, the ink path pressure stability control is one of the core components of the inkjet printer, and whether the ink pressure and the pressure difference at the nozzle of the nozzle are stable directly determines the continuous stable operation capability of the inkjet printer. For a long time, various large ink-jet printer manufacturers adopt various methods to ensure the ink pressure and the pressure difference at the nozzle of the spray head, and additionally add an air source device with complex structure and higher cost, and easily cause negative pressure suck-back backflow, the working time is unstable for a long time, and the capability of resisting external interference is poorer; in addition, the ink path pressure control parameters are all fixedly set, and the negative pressure stable control can not be realized under various working states.
Disclosure of Invention
In view of the foregoing disadvantages, an object of the present application is to provide an intelligent ink path pressure control system of an inkjet printing apparatus and a control method thereof, which employ a simple structure to keep stable negative pressure of an ink path in different operating states of the inkjet printing apparatus.
In order to achieve the above object, the present application discloses an intelligent ink path pressure control system of an inkjet printing apparatus, comprising a circulating ink path and an intelligent pressure control device for controlling the circulating ink path, wherein the circulating ink path comprises a nozzle assembly, a first main ink cartridge, a second main ink cartridge, a first buffer ink cartridge, a second buffer ink cartridge, an ink supply cartridge and a diaphragm pump; the intelligent pressure control device comprises a rotating speed adjusting device for controlling the rotating speed of the diaphragm pump; the first buffer ink box is connected to the first main ink box through a pipeline, and the second buffer ink box is connected to the second main ink box through a pipeline; the first main ink box, the spray head assembly and the second main ink box are sequentially connected through a pipeline; the diaphragm pump comprises an ink supply pump, a circulating pump and a reflux pump; the rotating speed adjusting device presses the ink in the ink supply box into the first buffering ink box by adjusting the ink supply pump, the rotating speed adjusting device draws the ink in the second buffering ink box back to the ink supply box by adjusting the circulating pump, and the reflux pump is matched with and controls the flow difference between the ink supply pump and the circulating pump.
Further, the ink supply pump and the circulating pump are respectively connected to two sides of the ink supply box; the backflow pump is located between the first buffer ink box and the second buffer ink box.
Further, the rotating speed adjusting device is a PWM (Pulse Width Modulation) signal adjusting device; the reflux pump is matched with the circulating pump and the ink supply pump for regulation according to the PWM signal regulating device, so that the circulating ink path is suitable for different working states of the ink-jet printing equipment.
Furthermore, the intelligent pressure control device further comprises a first pressure sensor for detecting the real-time air pressure of the first main ink box and a second pressure sensor for detecting the real-time air pressure of the second main ink box, the intelligent pressure control device stores the air pressure values of the first main ink box and the second main ink box, and the rotating speed of the diaphragm pump is adjusted according to different working states of the ink-jet printing equipment.
Furthermore, the intelligent pressure control device also comprises a database, wherein the database is used for storing real-time air pressure values of the first sensor and the second sensor under different working states and establishing a pressure change model under the corresponding working state according to the real-time air pressure values; the intelligent pressure control device calculates the current required pressure value according to the pressure change model and the current air pressure value parameter and obtains the rotating speed of the corresponding diaphragm pump, and the rotating speed of the diaphragm pump is adjusted through the rotating speed adjusting device.
Further, the operating state of the inkjet printing apparatus includes a cleaning state, a motion state, and a standby state; in the cleaning state, the air pressure in the first main ink box and the second main ink box is reduced, the rotating speed of the ink supply pump is greater than that of the circulating pump, and the ink in the first main ink box and the second main ink box flows out of the spray hole.
The application also discloses a control method of the intelligent ink path pressure control system of the ink jet printing equipment, which comprises the following steps:
initializing an intelligent ink path pressure control system;
acquiring the working state of the ink-jet printing equipment;
and adopting a corresponding pressure control method according to different working states.
Furthermore, the control method of the intelligent ink path pressure control system for ink-jet printing comprises a pressure change model which is established corresponding to historical measured air pressure value data under each working state;
the corresponding pressure control method is adopted according to different working states "
Reading the air pressure values of the first pressure sensor and the second pressure sensor in real time;
recording the measured air pressure value into a database under a corresponding working state;
updating the pressure change model data according to the read real-time air pressure value;
analyzing and calculating a pressure control parameter suitable for the current working state by using the pressure change model;
and obtaining the rotating speed control quantity of the diaphragm pump.
This application makes inkjet printing equipment can circulate to supply ink through setting up two buffering ink cartridges to and the setting of diaphragm pump, avoids the interior material of liquid to deposit, reduces the influence of pulsation when the diaphragm pump rotates to nozzle department fluid pressure when preventing that the shower nozzle from blockking up, keeps the ink horn negative pressure stable. In addition, set up intelligent accuse pressure equipment and adjust the diaphragm pump, thereby guarantee that the ink circuit adjusts the negative pressure in the diaphragm pump rotational speed at a small margin under the operating condition of difference, make the ink circuit negative pressure all remain stable under a plurality of operating condition, improve the inkjet and print the quality.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of an intelligent ink path pressure control system of an inkjet printing apparatus according to an embodiment of the present application;
FIG. 2 is a flowchart illustrating steps of a method for controlling an intelligent ink path pressure control system of an inkjet printing apparatus to obtain an operating status according to an embodiment of the present disclosure;
FIG. 3 is a flow chart illustrating steps of a method for controlling an intelligent ink path pressure control system of an inkjet printing apparatus according to an embodiment of the present disclosure;
100, an intelligent ink path pressure control system; 200. a circulating ink path; 210. a first main ink cartridge; 220. a second main ink cartridge; 230. a first buffer ink cartridge; 240. a second buffer ink box; 250. an ink supply cartridge; 260. a diaphragm pump; 261. an ink supply pump; 262. a circulation pump; 263. a reflux pump; 270. spraying a hole; 300. an intelligent pressure control device; 320. a first pressure sensor; 330. a second pressure sensor.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The application is further described with reference to the drawings and alternative embodiments.
As shown in fig. 1, the present application provides an intelligent ink path pressure control system 100 of an inkjet printing apparatus, comprising a circulating ink path 200 and an intelligent pressure control device 300 for controlling the circulating ink path 200, wherein the circulating ink path 200 comprises a first main ink cartridge 210 and a second main ink cartridge 220; a first buffer ink tank 230, a second buffer ink tank 240, an ink supply tank 250, and a diaphragm pump 260; the intelligent pressure control device 300 comprises a rotating speed adjusting device for controlling the rotating speed of the diaphragm pump 260; the first buffer ink tank 230 is connected to the first main ink tank 210 through a pipeline, and the second buffer ink tank 240 is connected to the second main ink tank 220 through a pipeline; the diaphragm pump 260 includes an ink supply pump 261, a circulation pump 262, and a return pump 263; the rotation speed adjusting device presses the ink in the ink supply box 250 into the first buffer ink box 230 by adjusting the ink supply pump 261, the rotation speed adjusting device draws the ink in the second buffer ink box 240 back to the ink supply box 250 by adjusting the circulation pump 262 by rotation speed, and the rotation speed adjusting device adjusts the reflux pump 263 to cooperate and control the ink supply pump 261 and the circulation pump 262 by rotation speed.
Further, the ink supply pump 261 and the circulation pump 262 are respectively connected to both sides of the ink supply cartridge 250; the return pump 263 is located between the first buffer tank 230 and the second buffer tank 240.
The ink is stored in the ink supply tank 250, and is connected to the ink supply pump 261 through a pipe. The ink supply pump 261 adjusts the rotation speed according to a rotation speed adjusting device (not shown) of the intelligent pressure control device 300, and presses the ink into the first buffer ink tank 230 through the pipeline. The outlet of the first buffer ink box 230 is connected to the first main ink box 210 through a pipeline, when the ink is pressed in from the ink supply pump 261, the liquid level in the first buffer ink box 230 rises, the air pressure in the ink box rises, and positive pressure is formed to press the ink into the first main ink box 210; the inlet of the second buffer ink box 240 is connected to the second main ink box 220 through a pipeline, the rotating speed of the circulating pump 262 is regulated by the rotating speed regulating device, the liquid level of the second buffer ink box 240 is reduced, the air pressure in the second buffer ink box 240 is reduced, negative pressure is formed, ink is sucked back to the second buffer ink box 240 from the second main ink box 220, and is further sucked back to the ink supply box 250, and circulating ink supply is formed.
Furthermore, the rotating speed adjusting device is a PWM (Pulse Width Modulation) signal adjusting device; the reflux pump 263 is adjusted by matching with the circulating pump 262 and the ink supply pump 261 according to the PWM signal adjusting device, so that the circulating ink path 200 is adapted to different working states (motion state or cleaning state) of the inkjet printing apparatus.
The reflux pump 263 adjusts the rotation speed according to the intelligent pressure control device 300, and works in cooperation with the ink supply pump 261 and the circulating pump 262. Considering that the circulating pump 262 and the ink supply pump 261 are difficult to control negative pressure, the reflux pump 263 and the PWM speed regulation technology are used, so that the rotating speed of the diaphragm pump 260 is kept in a small regulation range of normal rotating speed, the control linearity is kept, and a control dead zone in a low-speed and high-speed area is avoided; the flow difference between the circulating pump 262 and the ink supply pump 261 is controlled by the PWM signal adjusting device and the reflux pump 263, so that the circulating pump 262 and the ink supply pump 261 can keep linear control, and the negative pressure in the ink path can be better controlled and adjusted. The return pump 263 is disposed between the first buffer ink tank 230 and the second buffer ink tank 240, so that the accuracy of controlling the rotation speed is more accurate than that of the other parts, and the influence on the negative pressure when the diaphragm pump 260 rotates is reduced.
Further, the intelligent pressure control device 300 further includes a first pressure sensor 320 for detecting the real-time air pressure of the first main ink cartridge 210, and a second pressure sensor 330 for detecting the real-time air pressure of the second main ink cartridge 220, wherein the intelligent pressure control device 300 stores and receives the air pressure values of the first main ink cartridge 210 and the second main ink cartridge 220, and adjusts the rotation speed of the diaphragm pump 260 according to different working states of the inkjet printing apparatus.
The first pressure sensor 320 is used for detecting the air pressure of the first main ink box 210, the second pressure sensor 330 is used for detecting the air pressure of the second main ink box 220, and the first pressure sensor 320 and the second pressure sensor 330 feed the detected pressure values back to the intelligent pressure control device 300 in real time; the rotation speed adjusting device of the intelligent pressure control device 300 for ink-jet printing indirectly controls the negative pressure in the first main ink box 210 and the second main ink box 220 by adjusting the rotation speed of the ink supply pump 261 and the circulation pump 262 to control the inflow amount of the first main ink box 210 and the outflow amount of the second main ink box 220; when the negative pressure of the second main ink tank 220 is higher than that of the first main ink tank 210, the ink flows from the first main ink tank 210 through the nozzle 270 and then flows back to the second main ink tank 220.
Specifically, the intelligent pressure control device 300 includes a database for storing real-time air pressure values of the first sensor and the second sensor in different working states, the intelligent pressure control device 300 calculates a current required pressure value according to the database and a current air pressure value parameter and obtains a rotation speed of the corresponding diaphragm pump 260, and the rotation speed of the diaphragm pump 260 is adjusted by the rotation speed adjusting device.
The intelligent pressure control device 300 receives a real-time air pressure value signal in the main ink box detected by the pressure sensor, classifies and stores the real-time air pressure value signal into a database in a corresponding working state according to working state information given by a main system of the ink-jet printing equipment, and establishes a pressure change model in the corresponding working state; when the ink jet printing equipment operates in different working states, the intelligent ink path pressure control system 100 calls a corresponding pressure model to analyze a pressure control parameter and calculate the control quantity of the rotating speed of the diaphragm pump 260; according to the obtained control quantity of the rotating speed of the diaphragm pump 260, the rotating speed of the diaphragm pump 260 is adjusted, so that the negative pressure of the circulating ink path 200 is stably controlled and can be adaptive to different working states.
More specifically, the operating state of the inkjet printing apparatus includes a purge state, a motion state, and a standby state; in the purging state, the air pressure in the first main ink tank 210 and the second main ink tank 220 is reduced, the rotation speed of the ink supply pump 261 is greater than that of the circulation pump 262, and the ink in the first main ink tank 210 flows out from the nozzle hole 270.
When the ink jet printing device is switched from a moving state to a cleaning state, only the air pressure (negative pressure) values of the first main ink box 210 and the second main ink box 220 are reduced, the rotating speed of the ink supply pump 261, the circulating pump 262 and the return pump 263 are automatically adjusted by the rotating speed adjusting device, so that the rotating speed of the ink supply pump 261 is larger than that of the circulating pump 262, the outflow quantity of the ink in the circulating ink path 200 is larger than that of the return pump at the moment, the redundant ink can be directly pressed out from the nozzle 270, bubbles and impurities in the ink are flushed out from the nozzle holes to clean the nozzle 270, the phenomenon that the ink solution is uneven due to the precipitation of substances in the ink is avoided, and the nozzle 270.
As another embodiment of the present application, the present application further discloses a control method of an intelligent ink path pressure control system of an inkjet printing apparatus, comprising the steps of:
s1 initializes the intelligent ink circuit pressure control system,
s2, acquiring the working state of the ink-jet printing device;
and S3, adopting corresponding pressure control method according to different working states.
The step S3 of adopting a corresponding pressure control method according to different working states comprises the steps of;
s31, reading the air pressure values of the first pressure sensor and the second pressure sensor in real time;
s32, recording the measured air pressure value into a database under a corresponding working state;
s33, updating the pressure change model data according to the read real-time air pressure value;
s34, analyzing and calculating the pressure control parameter suitable for the current working state by the pressure change model;
s35 gives the control amount of the rotation speed of the diaphragm pump.
As shown in fig. 2 and 3, after being initialized, the intelligent ink path pressure control system 100 for inkjet printing communicates with a main system of an inkjet printing apparatus to obtain operation information of the current inkjet printing apparatus, and obtains a working state of the current inkjet printing apparatus according to a command of the main system, so as to select a pressure control method in a corresponding working state. The intelligent ink path pressure control device also comprises a database, and the pressure values detected in real time are classified and stored in the corresponding database in each working state, for example, the current air pressure value parameters are stored in the motion state database in the motion state, and a motion state pressure change model is established through the air pressure value parameters.
For example, the current working state of the inkjet printing device is a "motion state", the intelligent ink path pressure control system 100 for inkjet printing is initialized, at this time, the intelligent ink path pressure control system 100 is in communication with the main system, the intelligent ink path pressure control system 100 obtains the current state of the inkjet printing device as the "motion state" according to a command of the main system, and a pressure control method of the motion state is adopted;
after the intelligent ink path pressure control system 100 for ink-jet printing acquires that the current state is the motion state, the real-time current air pressure values of the first main ink box 210 and the second main ink box 220 are transmitted to the intelligent pressure control device 300 through the first pressure sensor 320 and the second pressure sensor 330, the intelligent pressure control device 300 firstly stores the current air pressure values to a database, the database receives new air pressure value data to update a motion state change model, the motion state pressure change model analyzes and calculates pressure control parameters suitable for the current motion state, further calculates the rotating speed control quantity of the diaphragm pump 260, transmits the obtained rotating speed control quantity of the diaphragm pump 260 to a rotating speed adjusting device, adjusts the rotating speed of the diaphragm pump 260, thereby adjusting the amount of ink in each ink cartridge in the circulating ink path 200, indirectly controlling the air pressure in the ink cartridge, and stably controlling the negative pressure in the ink path in a motion state. The pressure control parameter calculation method takes the real-time pressure data as a feedback value and the target pressure as a set value.
In other working states, such as a cleaning state or a standby state, the specific pressure control method is similar to the pressure control method in the motion state, and is not described herein again.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the present application is not intended to be limited to the specific embodiments shown. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (9)
1. An intelligent ink path pressure control system of an ink jet printing device is characterized by comprising a circulating ink path and an intelligent pressure control device for controlling the circulating ink path, wherein the circulating ink path comprises a spray head assembly, a first main ink box, a second main ink box, a first buffer ink box, a second buffer ink box, an ink supply box and a diaphragm pump; the intelligent pressure control device comprises a rotating speed adjusting device for controlling the rotating speed of the diaphragm pump; the first buffer ink box is connected to the first main ink box through a pipeline, and the second buffer ink box is connected to the second main ink box through a pipeline; the first main ink box, the spray head assembly and the second main ink box are sequentially connected through a pipeline; the diaphragm pump comprises an ink supply pump, a circulating pump and a reflux pump; the rotating speed adjusting device presses the ink in the ink supply box into the first buffering ink box by adjusting the ink supply pump, the rotating speed adjusting device draws the ink in the second buffering ink box back to the ink supply box by adjusting the circulating pump, and the reflux pump is matched with and controls the flow difference between the ink supply pump and the circulating pump.
2. The intelligent ink path pressure control system of the ink jet printing device as claimed in claim 1, wherein the ink supply pump and the circulating pump are respectively connected to two adjacent sides of the ink supply box; the backflow pump is located between the first buffer ink box and the second buffer ink box.
3. The intelligent ink path pressure control system of an ink jet printing device as claimed in claim 1, wherein the rotation speed adjusting device is a PWM signal adjusting device; the reflux pump is matched with the circulating pump and the ink supply pump for regulation according to the PWM signal regulating device, so that the circulating ink path is suitable for different working states of the ink-jet printing equipment.
4. The system of claim 1, wherein the intelligent pressure control device further comprises a first pressure sensor for detecting a real-time air pressure of a first main ink cartridge, a second pressure sensor for detecting a real-time air pressure of a second main ink cartridge, and the intelligent pressure control device stores the received air pressure values of the first main ink cartridge and the second main ink cartridge and adjusts the rotation speed of the diaphragm pump according to different operating states of the inkjet printing apparatus.
5. The intelligent ink path pressure control system of an inkjet printing apparatus according to claim 4, wherein the intelligent pressure control device further comprises a database for storing real-time air pressure values of the first pressure sensor and the second pressure sensor in different working states, and establishing a pressure change model in a corresponding working state according to the real-time air pressure values; the intelligent pressure control device calculates the current required pressure value according to the pressure change model and the current air pressure value parameter and obtains the rotating speed of the corresponding diaphragm pump, and the rotating speed of the diaphragm pump is adjusted through the rotating speed adjusting device.
6. The intelligent ink path pressure control system of the ink jet printing device as claimed in claim 5, wherein the operating state of the ink jet printing device comprises a cleaning state, a motion state and a standby state; in the cleaning state, the air pressure in the first main ink box and the second main ink box is reduced, the rotating speed of the ink supply pump is greater than that of the circulating pump, and the ink in the first main ink box flows out of the spray hole of the spray head assembly.
7. A control method of an intelligent ink path pressure control system of an ink jet printing device is characterized by comprising the following steps:
initializing an intelligent ink path pressure control system, and acquiring the working state of the ink-jet printing equipment;
and adopting a corresponding pressure control method according to different working states.
8. The control method of an intelligent ink path pressure control system of an ink jet printing device according to claim 7, comprising a pressure variation model established corresponding to historical measured air pressure value data in each working state;
the method for controlling the pressure by adopting the corresponding pressure control method according to different working states comprises the following steps:
reading the air pressure values of the first pressure sensor and the second pressure sensor in real time;
recording the measured air pressure value into a database under a corresponding working state;
updating the pressure change model data according to the read real-time air pressure value;
analyzing and calculating a pressure control parameter suitable for the current working state by using the pressure change model;
and obtaining the rotating speed control quantity of the diaphragm pump.
9. The method as claimed in claim 8, wherein the calculated pressure control parameter is calculated as a set value from the target pressure and the real-time pressure data is calculated as a feedback value.
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| CN116968442A (en) * | 2023-09-20 | 2023-10-31 | 季华实验室 | Ink path system monitoring method and device, electronic equipment and storage medium |
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| CN115420418A (en) * | 2022-11-04 | 2022-12-02 | 季华实验室 | Air pressure measuring method and device, electronic equipment and readable storage medium |
| CN116968442A (en) * | 2023-09-20 | 2023-10-31 | 季华实验室 | Ink path system monitoring method and device, electronic equipment and storage medium |
| CN116968442B (en) * | 2023-09-20 | 2023-12-15 | 季华实验室 | Ink path system monitoring method and device, electronic equipment and storage medium |
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| CN112319068B (en) | 2022-07-22 |
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