Self-cleaning dyeing machine

Abstract

The utility model discloses a self-cleaning printing and dyeing machine which comprises a controller and a plurality of printing and dyeing units, each printing and dyeing unit comprises a spray head used for spraying dye and a liquid supply pipeline used for conveying the dye to the spray head, and the spray heads of the printing and dyeing units are arranged side by side. The liquid supply pipeline comprises a first liquid supply pipeline of which the liquid inlet end is provided with a dye cylinder and a second liquid supply pipeline of which the liquid outlet end is communicated with the spray head, the printing and dyeing unit further comprises a cleaning pipeline provided with a cleaning cylinder, the liquid outlet end of the cleaning pipeline is provided with a three-way valve connected between the first liquid supply pipeline and the second liquid supply pipeline, and the controller switches the three-way valve. And the dye cylinder or the cleaning cylinder is communicated with the second liquid supply pipeline. According to the printing and dyeing unit, the printing and dyeing unit is arranged to be of the structure with the cleaning pipeline, so that the printing and dyeing machine can conduct cleaning or color changing on a single spray head, when a small number of spray heads are blocked or color changing is needed, other spray heads do not need to be cleaned, the number of the spray heads needing to be cleaned is greatly reduced, cleaning liquid and dye are saved, and printing and dyeing cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of printing and dyeing equipment, and specifically relates to a self-cleaning printing and dyeing machine. Background Technology

[0002] Currently, most printing and dyeing machines on the market have multiple nozzles arranged side by side to spray dye onto fabric. When different colors of dye are sprayed from the nozzles, patterns can be formed on the fabric. However, when the printing pattern needs to be changed and some nozzles need to be recolored, existing printing and dyeing machines can only stop the machine to clean all the nozzles together and then recolor all the nozzles, resulting in a waste of dye. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a self-cleaning printing and dyeing machine to solve the problem of not being able to clean or change the color of a single printhead.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a self-cleaning dyeing machine, including a controller and multiple dyeing units. Each dyeing unit includes a nozzle for spraying dye and a supply pipeline for supplying dye to the nozzle. The nozzles of the multiple dyeing units are arranged side-by-side. The supply pipeline includes a first supply pipeline with a dye tank at its inlet end and a second supply pipeline with its outlet end connected to the nozzle. The dyeing unit also includes a cleaning pipeline with a cleaning tank. The outlet end of the cleaning pipeline is equipped with a three-way valve connecting the first and second supply pipelines. The controller switches the three-way valve to connect either the dye tank or the cleaning tank to the second supply pipeline. This technical solution has the following technical effects:

[0005] This invention configures the dyeing unit with a cleaning pipeline and connects the three-way valve of the cleaning pipeline between the first and second liquid supply pipelines. This allows the user to adjust the three-way valve to connect the first and second liquid supply pipelines via the controller when the printhead needs to spray dye onto the fabric. This means that the dye tank of each dyeing unit is connected to its corresponding printhead, providing the printhead with the same or different colors of dye. Furthermore, when some printheads need to be recolored to change the pattern sprayed on the fabric, the controller can adjust the three-way valve corresponding to the printhead to connect the cleaning pipeline to the second liquid supply pipeline. The system allows for individual printhead cleaning and dye replacement. The controller then adjusts the three-way valve corresponding to the printhead back to the first and second supply lines, completing the color change for a single printhead. Printheads that don't require color change don't need cleaning, saving dye. Conversely, if some printheads become clogged, the controller can connect the cleaning line to the second supply line to clean the clogged printhead. Then, the controller adjusts the three-way valve back to the first and second supply lines to clean the clogged printhead. In short, the cleaning lines and three-way valves allow the printing machine to clean or change the color of individual printheads. When a few printheads become clogged or require color change, other printheads don't need cleaning, significantly reducing the number of printheads requiring cleaning, saving cleaning solution and dye, and lowering printing costs.

[0006] The aforementioned self-cleaning dyeing and printing machine also includes a power source. Each dyeing and printing unit further includes a pressurized pipeline connected between the power source, the dye tank, and the cleaning tank. The power source pressurizes the corresponding dye tank or cleaning tank through the pressurized pipeline, thereby driving the dye in the dye tank or the cleaning liquid in the cleaning tank to flow towards the nozzle. When the pressurized pipeline pressurizes the dye tank, the dye in the dye tank can flow into the nozzle through the liquid supply pipeline; when the pressurized pipeline pressurizes the cleaning tank, the cleaning liquid in the cleaning tank can flow into the nozzle through the cleaning pipeline. By connecting all pressurized pipelines to the same power source, the dyeing and printing machine can achieve independent pressurization and drive of all dyeing and printing units with a single power source, eliminating the need for separate dye extraction devices in each dyeing and printing unit, simplifying the structure of the dyeing and printing machine, and reducing its cost.

[0007] In the aforementioned self-cleaning dyeing machine, a pressure regulating component is installed on the pressurized pipeline. This component is electrically connected to the controller to regulate the air pressure within the dye tank or cleaning tank. Different dyeing units can have their pressure individually adjusted via this component. When the nozzles spray dye, adjusting the gas pressure in each pressurized pipeline compensates for the varying pressure losses experienced by the dye as it passes through different dyeing units, ensuring consistent dye flow from each nozzle. This guarantees uniform dyeing of the fabric and reduces dyeing costs. Furthermore, when cleaning the nozzles, increasing the pressure allows for thorough cleaning of clogged nozzles, resulting in better cleaning performance.

[0008] In the aforementioned self-cleaning dyeing machine, the pressure regulating component includes a barometer and a pressure regulating valve located upstream of the barometer. The controller controls the pressure regulating valve based on the air pressure detected by the barometer. The structure is simple and reliable. By placing the pressure regulating valve upstream of the barometer, the barometer can quickly detect the air pressure value after adjustment by the pressure regulating valve, facilitating rapid adjustment of the pressure regulating valve by the controller.

[0009] In the aforementioned self-cleaning dyeing machine, a first pressure valve, a second pressure valve, and a third pressure valve are provided on the pressurization pipeline. The first pressure valve is located upstream of the pressure regulating component, the second pressure valve is located between the pressure regulating component and the dye cylinder, and the third pressure valve is located between the pressure regulating component and the cleaning cylinder. When the printhead sprays dye, the first and second pressure valves are open, and the third pressure valve is closed. When the printhead is being cleaned, the first and third pressure valves are open, and the second pressure valve is closed. The first and second pressure valves are not opened simultaneously to prevent dye and cleaning liquid from flowing into the three-way valve at the same time, which could damage the three-way valve.

[0010] In the aforementioned self-cleaning dyeing and printing machine, the dyeing and printing unit also includes a power pump located on the second liquid supply pipeline. The power pump is used to extract dye from the dye tank or cleaning liquid from the cleaning tank. Each power pump extracts dye or cleaning liquid from each dyeing and printing unit, and the operation is stable and reliable.

[0011] In the aforementioned self-cleaning dyeing machine, the dyeing unit also includes a flow detection device located on the second liquid supply pipeline. The flow detection device is electrically connected to the controller to detect the nozzle flow rate. During the process of the power source pushing the dye from the dye cylinder to the nozzle for spraying, the flow detection device can detect the nozzle flow rate and feed it back to the controller. The controller then controls the pressure regulating component to precisely control the nozzle flow rate of each dyeing unit to the same value, ensuring that each nozzle sprays the same amount of dye onto the fabric per unit time, thereby making the dyeing more uniform across the fabric.

[0012] In the aforementioned self-cleaning dyeing machine, the dyeing unit further includes a waste liquid pipeline and a waste liquid valve for opening and closing the waste liquid pipeline. The waste liquid pipeline is connected to the nozzle to discharge waste liquid from the nozzle. When the nozzle is spraying the fabric for dyeing, the waste liquid valve is closed to prevent dye from leaking from the waste liquid pipeline. When the nozzle is being cleaned, the waste liquid valve is opened, allowing accumulated dye or cleaning fluid and other waste liquid at the nozzle to flow out quickly through the waste liquid pipeline, preventing excessive pressure at the nozzle and thus improving cleaning efficiency.

[0013] In the aforementioned self-cleaning dyeing and printing machine, the machine also includes a waste liquid cylinder, with the waste liquid pipelines of multiple dyeing and printing units connected to the same waste liquid cylinder, reducing the number of waste liquid cylinders, simplifying the internal structure of the dyeing and printing machine, and reducing the difficulty of production and processing; or, the machine also includes multiple waste liquid cylinders, with the waste liquid pipelines of multiple dyeing and printing units connected one-to-one with multiple waste liquid cylinders, so that the waste liquid in the waste liquid pipeline of each dyeing and printing unit is discharged into different waste liquid cylinders respectively.

[0014] In the aforementioned self-cleaning dyeing machine, a hydraulic gauge is installed upstream of the waste liquid valve on the waste liquid pipeline. The hydraulic gauge is electrically connected to the controller to detect the pressure at the nozzles. When the pressure at each nozzle is different, the hydraulic gauge can quickly feed back the detected pressure to the controller, which then controls the pressure regulating component to adjust the pressure. At the same time, operators can also monitor the nozzle pressure in real time to check for blockages and clean or replace the nozzles as needed.

[0015] The features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a schematic diagram of the self-cleaning dyeing machine in Example 1;

[0018] Figure 2 This is a schematic diagram of the printing and dyeing unit in Example 1;

[0019] Figure 3 This is a schematic diagram of the self-cleaning dyeing machine in Example 2;

[0020] Figure 4 This is a schematic diagram of the printing and dyeing unit in Example 2.

[0021] Figure label:

[0022] 100. Controller;

[0023] 200. Power source;

[0024] 300. Printing and dyeing unit; 310. Sprayer head; 321. First liquid supply line; 3211. Dye tank; 322. Second liquid supply line; 3221. Flow detection device; 3222. Filter device; 330. Cleaning line; 331. Cleaning tank; 332. Three-way valve; 340. Pressurization line; 341. Pressure regulating assembly; 3411. Barometer; 3412. Pressure regulating valve; 342. First pressurization valve; 343. Second pressurization valve; 344. Third pressurization valve; 350. Waste liquid line; 351. Waste liquid valve; 352. Hydraulic gauge;

[0025] 400. Waste liquid tank;

[0026] 500. Power pump. Detailed Implementation

[0027] This utility model proposes a self-cleaning dyeing machine, including a controller and multiple dyeing units. Each dyeing unit includes a nozzle for spraying dye and a liquid supply pipeline for supplying dye to the nozzle. The nozzles of the multiple dyeing units are arranged side by side. The liquid supply pipeline includes a first liquid supply pipeline with a dye cylinder at the inlet end and a second liquid supply pipeline with the outlet end connected to the nozzle. The dyeing unit also includes a cleaning pipeline with a cleaning cylinder. The outlet end of the cleaning pipeline is provided with a three-way valve connected between the first liquid supply pipeline and the second liquid supply pipeline. The controller switches the three-way valve to connect the dye cylinder or the cleaning cylinder to the second liquid supply pipeline. This invention configures the dyeing unit with a cleaning pipeline and connects the three-way valve of the cleaning pipeline between the first and second liquid supply pipelines. This allows the user to adjust the three-way valve to connect the first and second liquid supply pipelines via the controller when the printhead needs to spray dye onto the fabric. This means that the dye tank of each dyeing unit is connected to its corresponding printhead, providing the printhead with the same or different colors of dye. Furthermore, when some printheads need to be recolored to change the pattern sprayed on the fabric, the controller can adjust the three-way valve corresponding to the printhead to connect the cleaning pipeline to the second liquid supply pipeline. The system allows for individual printhead cleaning and dye replacement. The controller then adjusts the three-way valve corresponding to the printhead back to the first and second supply lines, completing the color change for a single printhead. Printheads that don't require color change don't need cleaning, saving dye. Conversely, if some printheads become clogged, the controller can connect the cleaning line to the second supply line to clean the clogged printhead. Then, the controller adjusts the three-way valve back to the first and second supply lines to clean the clogged printhead. In short, the cleaning lines and three-way valves allow the printing machine to clean or change the color of individual printheads. When a few printheads become clogged or require color change, other printheads don't need cleaning, significantly reducing the number of printheads requiring cleaning, saving cleaning solution and dye, and lowering printing costs.

[0028] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] Example 1:

[0034] A self-cleaning printing and dyeing machine, such as Figure 1 and Figure 2 As shown, it includes a controller 100 and a dyeing and printing unit 300. Figure 1 (Within the dashed box) Multiple (two or more) dyeing and printing units 300 are provided. Each dyeing and printing unit 300 includes a nozzle 310, a liquid supply pipeline, and a cleaning pipeline 330. The nozzles 310 of the multiple dyeing and printing units 300 are arranged side by side. The nozzles 310 are used to spray dye. The liquid supply pipeline is used to deliver dye to the nozzles 310. The liquid supply pipeline includes a first liquid supply pipeline 321 and a second liquid supply pipeline 322. The inlet end of the first liquid supply pipeline 321 is equipped with a dye tank 3211 for storing dye. The outlet end of the second liquid supply pipeline 322 is connected to the nozzle 310. The inlet end of the cleaning pipeline 330 is equipped with a cleaning tank 331 for storing cleaning solution. The outlet end of 330 is equipped with a three-way valve 332, which is connected to the outlet end of the first liquid supply line 321 and the inlet end of the second liquid supply line 322. The controller 100 can switch the three-way valve 332. When the three-way valve 332 is switched to connect the first liquid supply line 321 and the second liquid supply line 322, the dye in the dye tank 3211 can flow into the nozzle 310 through the first liquid supply line 321 and the second liquid supply line 322. When the three-way valve 332 is switched to connect the cleaning line 330 and the second liquid supply line 322, the cleaning liquid in the cleaning tank 331 can flow into the nozzle 310 through the cleaning line 330 and the second liquid supply line 322 to clean the nozzle 310.

[0035] This invention configures the dyeing unit 300 with a cleaning pipeline 330, and connects the three-way valve 332 of the cleaning pipeline 330 between the first liquid supply pipeline 321 and the second liquid supply pipeline 322. This allows the controller 100 to adjust the three-way valve 332 to connect the first liquid supply pipeline 321 and the second liquid supply pipeline 322 when the user needs the nozzles 310 to spray dye onto the fabric. This means that the dye tanks 3211 of each dyeing unit 300 are connected to their corresponding nozzles 310, providing the nozzles 310 with dyes of the same or different colors. When some nozzles 310 need to have their colors changed to alter the pattern sprayed onto the fabric, the controller 100 can adjust the three-way valve 332 corresponding to the nozzle 310 to connect the cleaning pipeline 330 and the second liquid supply pipeline 322. The printhead 310 is cleaned, and the dye in the dye tank 3211 corresponding to the printhead 310 is replaced. Then, the controller 100 adjusts the three-way valve 332 corresponding to the printhead 310 back to the first liquid supply line 321 and the second liquid supply line 322 to complete the color change of a single printhead 310. The remaining printheads 310 that do not need to be changed do not need to be cleaned, thus saving dye. When some printheads 310 are blocked, the controller 100 can adjust the three-way valve 332 corresponding to the printhead 310 to connect the cleaning line 330 and the second liquid supply line 322 to clean the printhead 310. Then, the controller 100 adjusts the three-way valve 332 corresponding to the printhead 310 back to the first liquid supply line 321 and the second liquid supply line 322 to complete the cleaning of a single printhead 310. That is, the setting of cleaning pipeline 330 and three-way valve 332 allows the printing and dyeing machine to clean or change the color of a single printhead 310. When a small number of printheads 310 become clogged or need to be changed, there is no need to clean other printheads 310, which greatly reduces the number of printheads 310 that need to be cleaned, saves cleaning liquid and dye, and reduces printing and dyeing costs.

[0036] In this embodiment, the self-cleaning dyeing machine also includes a power source 200, and the dyeing unit 300 also includes a pressurization pipeline 340. The air inlet of the pressurization pipeline 340 of all dyeing units 300 is connected to the same power source 200. The pressurization pipeline 340 has two air outlets, which are respectively connected to the dye tank 3211 and the cleaning tank 331. The power source 200 can pressurize the corresponding dye tank 3211 or cleaning tank 331 through the pressurization pipeline 340. When the pressurization pipeline 340 pressurizes the dye tank 3211, the dye in the dye tank 3211 can flow into the nozzle 310 through the liquid supply pipeline. When the pressurization pipeline 340 pressurizes the cleaning tank 331, the cleaning liquid in the cleaning tank 331 can flow into the nozzle 310 through the cleaning pipeline 330. By connecting all the pressurized pipelines 340 to the same power source 200, the printing and dyeing machine can achieve the pressure drive of each printing and dyeing unit 300 through a single power source 200. There is no need to set up a separate device for extracting dye in each printing and dyeing unit 300, which simplifies the structure of the printing and dyeing machine and reduces its cost.

[0037] In this embodiment, a pressure regulating component 341 is provided on the pressurized pipeline 340. The pressure regulating component 341 is electrically connected to the controller 100 to regulate the air pressure in the dye tank 3211 or the cleaning tank 331. By providing a pressure regulating component 341 on each pressurized pipeline 340, the pressure regulating component 341 can control the gas pressure on the pressurized pipeline 340, thereby controlling the gas pressure entering the dye tank 3211 or the cleaning tank 331. Different printing and dyeing units 300 can have their pressure adjusted individually through the pressure regulating component 341. When the nozzle 310 sprays dye, adjusting the gas pressure in each pressurized pipeline 340 can compensate for the different pressure losses of the dye when passing through different printing and dyeing units 300, so that the dye flow rate sprayed from the nozzle 310 of each printing and dyeing unit 300 is consistent, ensuring uniform printing and dyeing of the fabric and reducing printing and dyeing costs. When cleaning the nozzle 310, the pressure can be increased to thoroughly clean the clogged nozzle 310, resulting in better cleaning effect.

[0038] In this embodiment, the pressure regulating component 341 includes a barometer 3411 and a pressure regulating valve 3412. The pressure value detected by the barometer 3411 is fed back to the controller 100. The controller 100 controls the pressure regulating valve 3412 according to the pressure value to regulate the pressure of each pressurized pipeline 340. The structure is simple and reliable. By placing the pressure regulating valve 3412 upstream of the barometer 3411, the barometer 3411 can quickly detect the pressure value after the pressure regulating valve 3412 is adjusted, which facilitates the controller 100 to quickly adjust the pressure regulating valve 3412.

[0039] In this embodiment, the pressurization pipeline 340 is provided with a first pressurization valve 342, a second pressurization valve 343, and a third pressurization valve 344. The first pressurization valve 342 is located upstream of the pressure regulating component 341 to control whether the gas in the power source 200 enters the corresponding pressurization pipeline 340. The second pressurization valve 343 is located between the pressure regulating component 341 and the dye cylinder 3211 to control whether the gas passing through the pressure regulating component 341 enters the dye cylinder 3211. The third pressurization valve 344 is located between the pressure regulating component 341 and the cleaning cylinder 331 to control whether the gas passing through the pressure regulating component 341 enters the cleaning cylinder 331. When the nozzle 310 sprays dye, the first pressure valve 342 and the second pressure valve 343 are open, and the third pressure valve 344 is closed. When the nozzle 310 is being cleaned, the first pressure valve 342 and the third pressure valve 344 are open, and the second pressure valve 343 is closed. The first pressure valve 342 and the second pressure valve 343 are not opened at the same time to avoid the dye and cleaning solution flowing into the three-way valve 332 at the same time, which would damage the three-way valve 332.

[0040] In this embodiment, the dyeing unit 300 further includes a flow detection device 3221. The flow detection device 3221 is located at the end of the second liquid supply pipeline 322 near the nozzle 310. The flow detection device 3221 is electrically connected to the controller 100. During the process of the power source 200 pushing dye from the dye tank 3211 to the nozzle 310 for spraying, the flow detection device 3221 can detect the flow rate of the nozzle 310 and feed it back to the controller 100. The controller 100 then controls the pressure regulating component 341 to precisely control the flow rate of the nozzles 310 in each dyeing unit 300 to the same value, ensuring that the amount of dye liquid sprayed onto the fabric by each nozzle 310 per unit time is the same, thereby making the dyeing more uniform in all positions of the fabric. Preferably, the flow detection device 3221 is a flow meter. Using a smaller flow meter as the flow detection device 3221 greatly reduces the space occupied by the flow detection device 3221, while providing high measurement accuracy and good monitoring effect on the flow rate at the nozzle 310.

[0041] The dyeing unit 300 in this embodiment also includes a waste liquid pipeline 350 and a waste liquid valve 351. The waste liquid valve 351 is located on the waste liquid pipeline 350 and is used to open and close the waste liquid pipeline 350. The inlet end of the waste liquid pipeline 350 is connected to the nozzle 310. When the nozzle 310 is spraying the fabric, the waste liquid valve 351 is closed to prevent dye from leaking from the waste liquid pipeline 350. When the nozzle 310 is being cleaned, the waste liquid valve 351 is opened, allowing the accumulated dye or cleaning fluid and other waste liquid at the nozzle 310 to flow out quickly from the nozzle 310 through the waste liquid pipeline 350, preventing excessive pressure at the nozzle 310 from causing damage and improving cleaning efficiency.

[0042] To collect the waste liquid, this embodiment also includes a waste liquid tank 400 connected to the outlet end of the waste liquid pipeline 350. All waste liquid flowing out of the waste liquid pipeline 350 is collected in the waste liquid tank 400, preventing pollution. Preferably, the waste liquid tank 400 is provided with one unit, and multiple waste liquid pipelines 350 of the dyeing and printing units 300 are connected to the same waste liquid tank 400, reducing the number of waste liquid tanks 400, simplifying the internal structure of the dyeing and printing machine, and reducing production difficulty. Of course, it is understood that in other embodiments, the number of waste liquid tanks can be the same as the number of dyeing and printing units, with waste liquid pipelines connected one-to-one to the waste liquid tanks, so that the waste liquid in the waste liquid pipelines of each dyeing and printing unit is discharged into different waste liquid tanks.

[0043] A hydraulic gauge 352 is also installed on the waste liquid pipeline 350. The hydraulic gauge 352 is located at the inlet end of the waste liquid pipeline 350 and is located upstream of the waste liquid valve 351. The hydraulic gauge 352 is electrically connected to the controller 100. When the printing and dyeing machine is working to print and dye the fabric, the nozzle 310 is connected to the waste liquid pipeline 350 upstream of the waste liquid valve 351, so that the hydraulic gauge 352 can detect the pressure at the nozzle 310 and transmit it to the controller 100. When the pressure of each nozzle 310 is different, the hydraulic gauge 352 can quickly feed back the detected pressure to the controller 100, and the controller 100 controls the pressure regulating component 341 to regulate the pressure. At the same time, the staff can also monitor whether the nozzle 310 is blocked by real-time information on the pressure at the nozzle 310, so as to clean or replace the nozzle 310.

[0044] In this embodiment, a filter device 3222 is also provided on the liquid supply pipeline. The filter device 3222 is located between the three-way valve 332 and the flow detection device 3221 to filter the dye that is about to enter the flow detection device 3221 and the nozzle 310, so as to prevent large particles in the dye from entering the flow detection device 3221 and the nozzle 310 and causing wear or blockage of them, thereby extending the service life of the flow detection device 3221 and the nozzle 310.

[0045] Example 2:

[0046] like Figure 3 and Figure 4 As shown, the difference between this embodiment and embodiment one is that in this embodiment, the dyeing and printing unit 300 includes a power pump 500. In this embodiment, the power pump 500 is installed on each dyeing and printing unit 300 instead of the power source and each pressurization pipeline in embodiment one. The power pump 500 is installed on the second liquid supply pipeline 322 and is located between the filter device 3222 and the flow detection device 3221, so as to draw dye in the dye tank 3211 or cleaning liquid in the cleaning tank 331.

[0047] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A self-cleaning dyeing machine, comprising a controller and multiple dyeing units, each dyeing unit including a nozzle for spraying dye and a supply pipeline for conveying dye to the nozzle, wherein the nozzles of the multiple dyeing units are arranged side by side, characterized in that: The liquid supply pipeline includes a first liquid supply pipeline with a dye cylinder at the inlet end and a second liquid supply pipeline with the outlet end connected to the nozzle. The printing and dyeing unit also includes a cleaning pipeline with a cleaning cylinder. The outlet end of the cleaning pipeline is provided with a three-way valve connected between the first liquid supply pipeline and the second liquid supply pipeline. The controller switches the three-way valve to connect the dye cylinder or the cleaning cylinder to the second liquid supply pipeline.

2. The self-cleaning printing and dyeing machine according to claim 1, characterized in that: It also includes a power source, and the dyeing unit also includes a pressurization pipeline connected between the power source, the dye tank and the cleaning tank. The power source pressurizes the corresponding dye tank or cleaning tank through the pressurization pipeline to drive the dye in the dye tank or the cleaning liquid in the cleaning tank to flow to the nozzle.

3. The self-cleaning printing and dyeing machine according to claim 2, characterized in that: The pressurization pipeline is equipped with a pressure regulating component, which is electrically connected to the controller to regulate the air pressure in the dyeing tank or cleaning tank.

4. The self-cleaning dyeing machine according to claim 3, characterized in that: The pressure regulating assembly includes a barometer and a pressure regulating valve located upstream of the barometer. The controller controls the pressure regulating valve based on the air pressure detected by the barometer.

5. A self-cleaning printing and dyeing machine according to claim 3, characterized in that: The pressurization pipeline is equipped with a first pressurization valve, a second pressurization valve and a third pressurization valve. The first pressurization valve is located upstream of the pressure regulating component, the second pressurization valve is located between the pressure regulating component and the dye cylinder, and the third pressurization valve is located between the pressure regulating component and the cleaning cylinder.

6. A self-cleaning printing and dyeing machine according to claim 1, characterized in that: The dyeing and printing unit also includes a power pump located on the second liquid supply pipeline, which is used to extract dye from the dye tank or cleaning liquid from the cleaning tank.

7. A self-cleaning printing and dyeing machine according to claim 2 or 6, characterized in that: The dyeing unit also includes a flow detection device located on the second liquid supply pipeline. The flow detection device is electrically connected to the controller to detect the nozzle flow rate.

8. A self-cleaning printing and dyeing machine according to claim 1, characterized in that: The dyeing and printing unit also includes a waste liquid pipeline and a waste liquid valve for opening and closing the waste liquid pipeline. The waste liquid pipeline is connected to the nozzle for discharging waste liquid from the nozzle.

9. A self-cleaning printing and dyeing machine according to claim 8, characterized in that: The dyeing and printing machine also includes a waste liquid tank, and the waste liquid pipelines of multiple dyeing and printing units are connected to the same waste liquid tank; or, the dyeing and printing machine also includes multiple waste liquid tanks, and the waste liquid pipelines of multiple dyeing and printing units are connected to multiple waste liquid tanks in a one-to-one correspondence.

10. A self-cleaning dyeing machine according to claim 8, characterized in that: The waste liquid pipeline is also equipped with a hydraulic gauge located upstream of the waste liquid valve. The hydraulic gauge is electrically connected to the controller to detect the pressure at the nozzle.

Images