CN219600724U - Pressure regulating system and ink supply system - Google Patents
Pressure regulating system and ink supply system Download PDFInfo
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- CN219600724U CN219600724U CN202223261995.6U CN202223261995U CN219600724U CN 219600724 U CN219600724 U CN 219600724U CN 202223261995 U CN202223261995 U CN 202223261995U CN 219600724 U CN219600724 U CN 219600724U
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Abstract
The utility model relates to the technical field of printing equipment, and provides a pressure regulating system and an ink supply system which enable ink to not easily block a pressure regulating device. A voltage regulating system, comprising: the ink box is used for being connected with the printing spray head, and the pressure regulating assembly comprises a pressure regulating pipeline connected with the ink box and a pressure regulating device connected with the pressure regulating pipeline; the controller is connected with the pressure regulating device and controls the pressure regulating device to regulate the pressure in the pressure regulating pipeline; and the backflow prevention assembly is used for detecting the ink position in the pressure regulating pipeline and closing the pressure regulating pipeline and is positioned between the ink box and the pressure regulating device. An ink supply system comprising an ink pump assembly for supplying ink, said ink pump assembly being in communication with said ink cartridge, and a pressure regulating system as described above.
Description
Technical Field
The utility model relates to the technical field of printing equipment, in particular to a pressure regulating system and an ink supply system.
Background
The existing ink supply system of the printer mainly comprises an ink pumping assembly and a pressure regulating assembly, wherein the ink pumping assembly pumps ink in an ink barrel into an ink box, and the pressure regulating assembly is used for regulating the vacuum degree of the ink box so as to regulate the ink outlet amount of the ink box and control a spray head on the ink box not to drip ink. However, when the vacuum degree of the ink box is not adjusted, ink in the ink box can be sucked into the pressure regulating device through the pressure regulating pipeline of the pressure regulating assembly, so that the pressure regulating device in the pressure regulating assembly is blocked.
Disclosure of Invention
The utility model provides a pressure regulating system and an ink supply system, and aims to solve the problem that the existing ink is easy to block a pressure regulating device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a voltage regulating system, comprising:
an ink cartridge for storing ink;
the pressure regulating assembly comprises a pressure regulating pipeline connected with the ink box and a pressure regulating device connected with the pressure regulating pipeline;
the controller is connected with the pressure regulating device and controls the pressure regulating device to regulate the pressure in the pressure regulating pipeline;
and the backflow prevention assembly is arranged on the pressure regulating pipeline and positioned between the ink box and the pressure regulating device, and is used for detecting the ink position in the pressure regulating pipeline and closing the pressure regulating pipeline.
As one possible implementation, the backflow prevention assembly includes an electrically operated valve for shutting off the pressure regulating pipe and a level sensor for detecting the ink position in the pressure regulating pipe, the electrically operated valve being in communication with the pressure regulating pipe, the level sensor being disposed on the pressure regulating pipe, the electrically operated valve and the level sensor being interlocked by a controller.
As a possible embodiment, the fill level sensor is a capacitive fill level sensor or an ultrasonic fill level sensor.
As a possible embodiment, the backflow prevention assembly further comprises a storage device for storing ink, which is connected to the pressure regulating line between the level sensor and the electrically operated valve.
As a possible embodiment, the storage device is an overflow bottle or an expansion tank.
As one possible implementation manner, the pressure regulating device comprises a negative pressure unit for forming negative pressure in the pressure regulating pipeline and a positive pressure unit for forming positive pressure in the pressure regulating pipeline, and the negative pressure unit and the positive pressure unit are communicated with the pressure regulating pipeline through a three-way valve.
As a possible implementation manner, the negative pressure unit comprises a vacuum generator, an accumulator communicated with the vacuum generator, a pressure transmitter communicated with the accumulator and a pressure relief valve, wherein the accumulator is communicated with the three-way valve, and the vacuum generator, the pressure transmitter, the pressure relief valve and the three-way valve are all electrically connected with the controller.
As one possible embodiment, the positive pressure unit includes a gas source, a first filter in communication with the gas source, a pressure regulating valve in communication with the first filter, and a cylinder connected between the gas source and the first filter, the pressure regulating valve being electrically connected to the controller.
An ink supply system comprising an ink pump assembly for supplying ink, said ink pump assembly being in communication with said ink cartridge, and a pressure regulating system as described above.
As one possible embodiment, the ink pump assembly includes an ink tank, an ink supply pump in communication with the ink tank, a second filter in communication with the ink supply pump, a degassing module in communication with the second filter, a one-way valve connected between the second filter and the ink supply pump, and a level sensor disposed in the ink cartridge, the ink supply pump and the level sensor being electrically connected with the controller, the degassing module in communication with the ink cartridge.
The utility model has the beneficial effects that: the utility model provides a pressure regulating system, comprising:
an ink box, which is used for being connected with a printing nozzle,
the pressure regulating assembly comprises a pressure regulating pipeline connected with the ink box and a pressure regulating device connected with the pressure regulating pipeline;
the controller is connected with the pressure regulating device and controls the pressure regulating device to regulate the pressure in the pressure regulating pipeline;
and the backflow prevention assembly is used for detecting the ink position in the pressure regulating pipeline and closing the pressure regulating pipeline and is positioned between the ink box and the pressure regulating device.
When ink exists in the ink box, and the pressure regulating assembly generates negative pressure in the pressure regulating pipeline, if the negative pressure generated by the pressure regulating assembly is too large, the ink in the ink box communicated with the pressure regulating pipeline is sucked into the pressure regulating pipeline, at the moment, the backflow preventing assembly positioned on the pressure regulating pipeline in the morning can timely detect the position of the ink entering the pressure regulating pipeline and timely close the pressure regulating pipeline, so that the ink is prevented from entering the pressure regulating device of the pressure regulating assembly from the pressure regulating pipeline, and the pressure regulating device is prevented from being blocked and damaged.
The utility model provides an ink supply system which comprises an ink pumping assembly for supplying ink and the pressure regulating system, wherein the ink pumping assembly is communicated with an ink box.
The pressure regulating assembly can prevent ink from entering the pressure regulating device of the pressure regulating assembly from the pressure regulating pipeline, so that the ink supply system provided by the utility model can prevent ink in the ink box from entering the pressure regulating device of the pressure regulating assembly so as to prevent the pressure regulating device from being blocked and damaged, so that the reliability of the ink supply system is higher, and the reliability of a printer using the ink supply system is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an ink supply system according to an embodiment of the present utility model.
Wherein, each reference sign in the figure: 100. a pressure regulating assembly; 101. a first filter; 102. a gas source; 103. a cylinder; 104. a pressure regulating valve; 105. a pressure storage device; 106. a pressure transmitter; 107. a three-way valve; 108. a pressure release valve; 109. a vacuum generator; 200. an ink pumping assembly; 201. an ink barrel; 202. a one-way valve; 203. a second filter; 204. an ink supply pump; 205. a degassing module; 300. a backflow prevention assembly; 301. a level sensor; 302. a storage device; 303. an electric valve; 400. an ink cartridge; 401. and (5) printing a spray head.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, a voltage regulating system provided in an embodiment of the present utility model includes:
the ink cartridge 400 is for temporarily storing ink for printing, the ink cartridge 400 is for connecting with the printing head 401, and the ink cartridge 400 outputs the ink stored therein onto a printing medium such as paper, fabric, plastic, or the like through the printing head 401.
The pressure regulating assembly 100, the pressure regulating assembly 100 includes a pressure regulating pipe connected to the ink cartridge 400 and a pressure regulating device connected to the pressure regulating pipe, for regulating a pressure value, such as gauge pressure or vacuum, in the pressure regulating pipe, thereby regulating the pressure of ink stored in the ink cartridge 400 communicating with the pressure regulating pipe, and thus regulating the amount of ink output from the printing head 401. As a possible example, the pressure regulating pipe of the pressure regulating assembly 100 may generate positive pressure or negative pressure by the pressure regulating device, when the pressure regulating pipe generates positive pressure, ink in the ink cartridge 400 may be ejected through the printing head 401, and when the pressure regulating pipe generates negative pressure, ink in the printing head 401 may be sucked into the ink cartridge, even into the pressure regulating pipe.
And the controller is used for receiving signals and sending instructions, and can be a programmable logic controller (ProgrammableLogicController, PLC) which is connected with the pressure regulating device and controls the pressure regulating device to regulate the pressure in the pressure regulating pipeline.
And a backflow preventing assembly 300, wherein the backflow preventing assembly 300 is used for detecting the ink position in the pressure regulating pipeline and closing the pressure regulating pipeline, and is positioned between the ink cartridge 400 and the pressure regulating device. As a possible example, the backflow preventing assembly 300 may include a level sensor and an electric valve 303, where the level sensor and the electric valve 303 are electrically connected to a controller, and the level sensor may detect whether there is ink in the pressure regulating pipe and the position of the ink, and send an electrical signal to the controller, and the controller sends an instruction to close or open to the electric valve 303 after receiving the electrical signal of the level sensor; two electrodes are arranged at intervals in the pressure regulating pipeline, one electrode serves as a positive electrode and is electrically connected with the electric valve 303, the other electrode serves as a negative electrode and is electrically connected with the electric valve 303, a power supply is connected between the electrode serving as the positive electrode and the electric valve 303, when ink submerges the electrode serving as the positive electrode and the electrode serving as the negative electrode, the positive electrode and the negative electrode are conducted through the ink, an executing circuit of the electric valve 303 is conducted, and the electric valve 303 acts and is closed.
In summary, the backflow preventing assembly 300 located in the morning of the pressure regulating pipeline can timely detect the position of the ink entering the pressure regulating pipeline and timely close the pressure regulating pipeline, so that the ink is prevented from entering the pressure regulating device of the pressure regulating assembly 100 from the pressure regulating pipeline, and the pressure regulating device is prevented from being blocked and damaged.
As a possible embodiment, referring to fig. 1, the backflow preventing assembly 300 includes an electrically operated valve 303 for shutting off a pressure regulating pipe and a level sensor 301 for detecting the position of ink in the pressure regulating pipe, the electrically operated valve 303 being communicated to the pressure regulating pipe, the level sensor 301 being disposed on the pressure regulating pipe, the electrically operated valve 303 being interlocked with the level sensor 301 by a controller. The condition of adjusting the closing or opening of the electrically operated valve 303 may be achieved by placing the level sensor 301 at different positions on the pressure regulating line or by the controller setting the ink alarm position. The positions of the electric valve 303 and the level sensor 301 relative to the ink box 400 can be determined according to specific working conditions, for example, when the pressure regulating pipeline is thinner, the ink moves faster in the pressure regulating pipeline, and the level sensor 301 and the electric valve 303 can be sequentially arranged on the pressure regulating pipeline from near to far away from the ink box 400, so that whether the ink exists in the pressure regulating pipeline can be detected in time; when the pressure regulating pipeline is thicker and longer, the ink is slower in the pressure regulating pipeline, and the electric valve 303 and the level sensor 301 can be arranged on the pressure regulating pipeline from near to far from the ink box 400, so that even if part of ink passes through the electric valve 303 and is detected by the level sensor 301, the ink can be retained in the pressure regulating pipeline after the electric valve 303 is closed.
As an example, when the level sensor 301 is an ultrasonic level sensor, a plurality of ultrasonic level sensors may be disposed at intervals on the pressure regulating pipeline from a position close to the ink cartridge 400, the ultrasonic level sensors are all electrically connected to the controller, one or several ultrasonic level sensors may be disposed through a corresponding program of the controller, and when one or several ultrasonic level sensors send a signal due to ink being detected, that is, a process of ink rising in the pressure regulating pipeline is simulated, the controller sends a command to the electric valve 301 again, so that the electric valve 301 is closed; when the liquid level of the ink in the pressure regulating pipeline drops, one or more ultrasonic level meters do not send signals because the ink is not detected, a command for opening the valve can be sent to the electric valve 301 through the controller, so that the electric valve 301 is opened.
As one possible embodiment, the level sensor 301 is one of a capacitive level sensor that can detect the presence or absence of ink by switching a circuit between two electrodes, and an ultrasonic level sensor that detects the presence or absence of ink by using a time difference of waves received by an ultrasonic generator and a receiver.
As a possible implementation, referring to fig. 1, when the pressure regulating pipe is short and thin, the ink can fill the entire pressure regulating pipe in a short time under the action of the negative pressure, and the level sensor 301 may not have enough reaction time. In order to be able to give the level sensor sufficient reaction time, the backflow prevention assembly 300 further comprises a storage device 302 for storing ink, the storage device 302 being connected to a pressure regulating line between the level sensor 301 and the electrically operated valve 303. This embodiment can buffer the ink entering the pressure regulating pipeline, i.e. when a large amount of ink enters the pressure regulating pipeline under the action of a large negative pressure in a short time, the storage device 302 can store most of the ink first, so as to conveniently give the electric valve 303 and the level sensor 301 sufficient reaction time, and improve the working reliability of the pressure regulating system.
As a possible implementation, referring to fig. 1, the storage device 302 may be one of an overflow bottle or an expansion tank, and a drain valve may be further disposed on the overflow bottle or the expansion tank, so as to drain the ink retained therein, or a cleaning solution may be flushed into the overflow bottle or the expansion tank through the drain valve, and then the cleaned waste water is discharged from the drain valve.
As a possible embodiment, referring to fig. 1, the pressure regulating device includes a negative pressure unit for forming a negative pressure in the pressure regulating pipe and a positive pressure unit for forming a positive pressure in the pressure regulating pipe, and the negative pressure unit and the positive pressure unit are in communication with the electric valve 303 through the three-way valve 107.
As an example, when negative pressure needs to be formed in the pressure regulating pipeline, the negative pressure unit is communicated with the pressure regulating pipeline through a three-way valve, and the positive pressure unit is isolated by closing a corresponding channel in the three-way valve; similarly, when positive pressure needs to be formed in the pressure regulating pipeline, the positive pressure unit is communicated with the pressure regulating pipeline through the three-way valve, and the negative pressure unit is isolated by closing a corresponding channel in the three-way valve.
As a possible embodiment, referring to fig. 1, the negative pressure unit includes a vacuum generator 109, an accumulator 105 in communication with the vacuum generator 109, a pressure transmitter 106 in communication with the accumulator 105, and a relief valve 108, the accumulator 105 being in communication with the three-way valve 107, and the vacuum generator 109, the pressure transmitter 106, the relief valve 108, and the three-way valve 107 being electrically connected to a controller. The vacuum generator 109 may include, but is not limited to, a vacuum pump, and as an example, the negative pressure generated by the vacuum generator 109 is stored by the pressure storage device 105, and the pressure storage device 105 may include, but is not limited to, a pressure vessel, and then the degree of vacuum in the pressure regulating pipe is regulated by opening and closing the pressure release valve 108. In order to more accurately control the vacuum degree of the pressure regulating pipe, at least one pressure transmitter 106 may be provided on the pressure storage device 105, the pressure transmitter 106 being configured to detect the pressure in the pressure storage device 105 and to convert the pressure value into a current signal or a voltage signal to be transmitted to the controller, the controller controlling the activation and the deactivation of the vacuum generator 109 and the pressure release valve 108 according to the set pressure value and the detected pressure value, thereby controlling the pressure in the pressure storage device 105, and thus controlling the pressure in the pressure regulating pipe.
As a possible embodiment, referring to fig. 1, the positive pressure unit includes a gas source 102, a first filter 101 in communication with the gas source 102, a pressure regulating valve 104 in communication with the first filter 101, and a cylinder 103 connected between the gas source 102 and the first filter 101, the pressure regulating valve 104 being electrically connected to a controller. The air source 102 is used for providing positive pressure, the air cylinder 103 is used for storing pressure, and the first filter 101 is used for filtering impurities in the air source 102 and preventing the impurities from entering the ink box 400 through the pressure regulating pipeline. The controller may adjust the pressure in the pressure regulating line by controlling the opening of the pressure regulating valve 104, thereby controlling the positive pressure value in the ink cartridge 400.
A second aspect of the present utility model provides an ink supply system, referring to fig. 1, comprising an ink pumping assembly 200 for supplying ink and the aforementioned pressure regulating system, wherein the ink pumping assembly 200 is in communication with an ink cartridge 400. The ink pumping assembly 200 is used to provide ink to the ink cartridge 400, and the ink pumping assembly 200 may include at least a storage device for storing ink, a pump for pumping ink into the ink cartridge 400.
Since the pressure regulating assembly 100 can prevent ink from entering the pressure regulating device of the pressure regulating assembly 100 from the pressure regulating pipeline, the ink supply system provided by the utility model can prevent ink in an ink box from entering the pressure regulating device of the pressure regulating assembly 100 so as to prevent the pressure regulating device from being blocked and damaged, so that the reliability of the ink supply system is higher, and the reliability of a printer using the ink supply system is higher.
As one possible implementation, referring to fig. 1, an ink pump assembly 200 may include an ink tank 201, an ink supply pump 204 in communication with the ink tank 201, a second filter 203 in communication with the ink supply pump 204, a degassing module 205 in communication with the second filter 203, a one-way valve 202 connected between the second filter 203 and the ink supply pump 204, and a level sensor disposed in an ink cartridge 400, the ink supply pump 204 and the level sensor being electrically connected to a controller, the degassing module 205 being in communication with the ink cartridge 400.
The second filter 203 is used for filtering impurities in the ink pumped out of the ink tank 201, so as to avoid affecting printing quality; the deaeration module 205 is configured to deaerate the ink, and prevent air from entering the ink cartridge, so as to avoid forming ink bubbles when the print head 401 ejects ink, forming splash ink phenomenon on the print medium, and affecting the print quality; the check valve 202 can prevent ink from flowing back into the ink barrel 201, and can assist the pressure regulating pipeline to work, so that the pressure in the ink box 400 is prevented from leaking through the ink barrel 201; the level sensor is capable of detecting the amount of ink in the ink cartridge 400, and the controller controls the start and stop of the ink supply pump 204 to control the amount of ink in the ink cartridge 400.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A voltage regulating system, comprising:
an ink cartridge for storing ink;
the pressure regulating assembly comprises a pressure regulating pipeline connected with the ink box and a pressure regulating device connected with the pressure regulating pipeline;
the controller is connected with the pressure regulating device and controls the pressure regulating device to regulate the pressure in the pressure regulating pipeline;
and the backflow prevention assembly is arranged on the pressure regulating pipeline and positioned between the ink box and the pressure regulating device, and is used for detecting the ink position in the pressure regulating pipeline and closing the pressure regulating pipeline.
2. The pressure regulating system of claim 1, wherein: the backflow prevention assembly comprises an electric valve for closing the pressure regulating pipeline and a material level sensor for detecting the ink position in the pressure regulating pipeline, wherein the electric valve is communicated with the pressure regulating pipeline, the material level sensor is arranged on the pressure regulating pipeline, and the electric valve and the material level sensor form interlocking through a controller.
3. The pressure regulating system of claim 2, wherein: the level sensor is a capacitive level sensor or an ultrasonic level sensor.
4. The pressure regulating system of claim 2, wherein: the backflow prevention assembly further comprises a storage device for storing ink, and the storage device is connected to the pressure regulating pipeline between the level sensor and the electric valve.
5. The pressure regulating system of claim 4, wherein: the storage device is an overflow bottle or an expansion tank.
6. The pressure regulating system of claim 1, wherein: the pressure regulating device comprises a negative pressure unit for forming negative pressure in the pressure regulating pipeline and a positive pressure unit for forming positive pressure in the pressure regulating pipeline, and the negative pressure unit and the positive pressure unit are communicated with the pressure regulating pipeline through a three-way valve.
7. The pressure regulating system of claim 6, wherein: the negative pressure unit comprises a vacuum generator, a pressure storage device communicated with the vacuum generator, a pressure transmitter and a pressure relief valve, wherein the pressure transmitter and the pressure relief valve are communicated with the pressure storage device, the pressure storage device is communicated with the three-way valve, and the vacuum generator, the pressure transmitter, the pressure relief valve and the three-way valve are electrically connected with the controller.
8. The pressure regulating system of claim 6, wherein: the positive pressure unit comprises an air source, a first filter communicated with the air source, a pressure regulating valve communicated with the first filter and a cylinder connected between the air source and the first filter, and the pressure regulating valve is electrically connected with the controller.
9. An ink supply system, characterized by: an ink pump assembly for supplying ink, the ink pump assembly being in communication with the ink cartridge, as claimed in any one of claims 1 to 8.
10. The ink supply system of claim 9, wherein: the ink pumping assembly comprises an ink barrel, an ink supply pump, a second filter, a degassing module, a one-way valve and a liquid level sensor, wherein the ink supply pump is communicated with the ink barrel, the second filter is communicated with the ink supply pump, the degassing module is communicated with the second filter, the one-way valve is connected between the second filter and the ink supply pump, the liquid level sensor is arranged in the ink box, the ink supply pump and the liquid level sensor are electrically connected with the controller, and the degassing module is communicated with the ink box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223261995.6U CN219600724U (en) | 2022-12-05 | 2022-12-05 | Pressure regulating system and ink supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223261995.6U CN219600724U (en) | 2022-12-05 | 2022-12-05 | Pressure regulating system and ink supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219600724U true CN219600724U (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223261995.6U Active CN219600724U (en) | 2022-12-05 | 2022-12-05 | Pressure regulating system and ink supply system |
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| Country | Link |
|---|---|
| CN (1) | CN219600724U (en) |
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2022
- 2022-12-05 CN CN202223261995.6U patent/CN219600724U/en active Active
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