A dyeing device for micro-nano bacteriostatic fabric

Abstract

The application belongs to the technical field of fabric dyeing equipment, and particularly relates to a micro-nano antibacterial fabric dyeing device, which comprises a hollow base, the upper surface of the hollow base is fixedly connected with a dyeing cylinder, the opening end of the dyeing cylinder is provided with a connecting thread, and the opening end inner wall of the dyeing cylinder is threadedly and sealingly connected with a sealing cover. The micro-nano antibacterial fabric dyeing device has the functions of dyeing and self-cleaning, fabric floating layer dye cleaning and spin-drying, does not need to use excess dye to weight a large amount of dyeing liquid in the dyeing process, reduces the dyeing cost, is convenient in dyeing liquid temperature regulation, improves the convenience and efficiency of fabric dyeing, has the functions of online monitoring and regulation of the dye concentration in the dyeing liquid, can ensure the stability of the dye concentration in the dyeing liquid, improves the quality of micro-nano antibacterial fabric dyeing, and ensures the accuracy of micro-nano antibacterial fabric sample dyeing test results.

Description

Technical Field

[0001] This invention belongs to the technical field of fabric dyeing equipment, and in particular relates to a dyeing device for micro-nano antibacterial fabrics. Background Technology

[0002] Micro-nano antibacterial fabric is a functional fabric that uses micro-nano technology to give textile fabric antibacterial function. This fabric takes into account both long-lasting antibacterial effect and the original characteristics of the fabric, and most of them meet safety and compliance standards. It is widely used in underwear, home textiles, medical protective clothing, sportswear and other scenarios. In the production process of micro-nano antibacterial fabric, in order to meet market demand, it is necessary to dye the micro-nano antibacterial fabric into fabrics of different colors through dyeing equipment. For example, the patent with authorization announcement number CN210031149U discloses a fabric dyeing machine.

[0003] Currently, before dyeing micro-nano antibacterial fabrics, especially after each dye formulation, it is necessary to cut samples of micro-nano antibacterial fabrics of a certain size for trial dyeing to determine whether the micro-nano antibacterial fabric matches the newly formulated dye. After trial dyeing, the color fastness, dyeing uniformity, and other indicators of the micro-nano antibacterial fabric are checked to ensure they are up to standard. If all dyeing indicators are up to standard, large-scale dyeing can then proceed. However, dyeing equipment in micro-nano antibacterial fabric production plants is mainly designed for large-scale production and is difficult to temporarily repurpose for trial dyeing. Furthermore, the small size of the micro-nano antibacterial fabric during trial dyeing means that a simple dyeing method using a mixing tank is often used for trial dyeing of micro-nano antibacterial fabric samples with newly formulated dyes. However, to ensure that the micro-nano antibacterial fabric samples can be fully mixed with the dye liquor, this dyeing process requires the use of excessive dye to prepare a large amount of dye liquor, which easily leads to dye waste and increases the cost of trial dyeing of micro-nano antibacterial fabric samples. In addition, the excessive amount of dye liquor makes temperature control of the dye liquor slow, for example, it takes a long time to adjust the temperature of the dye liquor to the required temperature, further affecting the efficiency and convenience of dyeing micro-nano antibacterial fabrics.

[0004] Furthermore, during the trial dyeing process, as the dyeing time increases, the amount of dye in the dye solution decreases significantly due to the continuous adsorption of the micro-nano antibacterial fabric sample. This phenomenon is more pronounced in the trial dyeing of micro-nano fabrics because the fiber surface area of ​​the micro-nano antibacterial fabric sample is larger, resulting in a stronger adsorption capacity for dye. This accelerates the decay of the dye solution concentration. In the later stages of dyeing, the low concentration of dye solution leads to insufficient dyeing power, and the dye adsorption rate in different areas of the fabric sample shows significant differences, resulting in obvious color gradation differences and ultimately causing uneven dyeing, which directly affects the accuracy of the trial dyeing results of the micro-nano antibacterial fabric sample.

[0005] To address these issues, we propose a dyeing device for micro / nano antibacterial fabrics. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a dyeing device for micro / nano antibacterial fabrics.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a dyeing device for micro-nano antibacterial fabric, comprising a hollow base, a dyeing cylinder fixedly connected to the upper surface of the hollow base, a connecting thread at the open end of the dyeing cylinder, a sealing cap threadedly connected to the inner wall of the open end of the dyeing cylinder, and a through hole at the outer wall of the dyeing cylinder, wherein a dyeing auxiliary mechanism is fixedly connected to the hole wall of the through hole.

[0008] A vertical plate is fixedly connected to the upper surface of the hollow base, and a driving mechanism is fixedly connected to the outer wall of the vertical plate.

[0009] A concentrated dye supply mechanism is fixedly connected to the upper surface of the hollow base;

[0010] The bottom outer wall of the dyeing cylinder is fixedly connected to an impurity filtration mechanism, and the liquid outlet of the impurity filtration mechanism is fixedly connected to the side wall of the hollow base.

[0011] The hollow base has a waste discharge valve and an L-shaped pipe fixedly connected to its side wall, and the top of the L-shaped pipe has a liquid inlet check valve fixedly connected to it.

[0012] In the aforementioned dyeing device for micro / nano antibacterial fabric, the dyeing auxiliary mechanism includes a heat-insulating cylinder fixedly connected to the dyeing cylinder. Two first-sealed bearings are fixedly connected to the inner wall of the heat-insulating cylinder. A hollow cylinder is fixedly connected to the inner wall of the two first-sealed bearings. Multiple micro-spray holes are formed on the outer wall of the hollow cylinder located inside the dyeing cylinder. A connecting hole is formed on the outer wall of the hollow cylinder located inside the heat-insulating cylinder. A rotating mesh cylinder is fixedly sleeved on the outer wall of the hollow cylinder located inside the dyeing cylinder. A normally closed solenoid valve is fixedly connected to the outer wall of the heat-insulating cylinder. The output end of the closed solenoid valve is fixedly connected to an L-shaped sealing tube. The sealing end of the L-shaped sealing tube passes through the side wall of the dyeing cylinder. Multiple nozzles are fixedly connected to the outer wall of the L-shaped sealing tube located inside the dyeing cylinder. A second sealing bearing is fixedly connected to the side end of the hollow cylinder. A metal tube is fixedly connected to the inner wall of the second sealing bearing. The bottom end of the metal tube passes through the top end of the hollow base and is fixedly connected to a micro water pump. A temperature sensor and a UV-Vis online spectral sensor are fixedly embedded in the tube wall of the heat insulation cylinder. A heating component is fixedly sleeved on the tube wall of the metal tube.

[0013] In the dyeing device for micro-nano antibacterial fabric described above, the heating component includes a heat insulation cover fixedly sleeved to the outer wall of a metal tube. The bottom end of the heat insulation cover is fixedly connected to the upper surface of a hollow base. Multiple heat-conducting mesh blocks are fixedly sleeved on the wall of the metal tube. An electric heating tube is fixedly embedded at the top of the heat insulation cover. The bottom end of the electric heating tube passes through multiple heat-conducting mesh blocks.

[0014] In the dyeing device for micro-nano antibacterial fabric described above, the driving mechanism includes a dual-axis motor fixedly connected to the outer wall of the vertical plate. A first helical gear is fixedly connected to the top driving end of the dual-axis motor. A second helical gear that meshes perpendicularly with the first helical gear is fixedly sleeved on the outer wall of the hollow cylinder. The bottom driving end of the dual-axis motor passes through the bottom end of the hollow base through a third sealed bearing and is fixedly connected to a stirring blade.

[0015] In the dyeing device for micro-nano antibacterial fabric described above, a fixed through hole is provided on the side wall of the dyeing cylinder, and a pressure sensor is fixedly connected to the wall of the fixed through hole. A pressure relief solenoid valve is fixedly connected to the top of the dyeing cylinder, and a universal ball bearing for supporting the rotating mesh cylinder is fixedly connected to the inner wall of the dyeing cylinder.

[0016] In the dyeing device for a micro-nano antibacterial fabric described above, the concentrated dye supply mechanism includes an adjustable solenoid valve that is fixedly connected to the upper surface of a hollow base. The top of the adjustable solenoid valve is fixedly connected to a dye cylinder, and a top cover is movably connected to the inner wall of the top opening of the dye cylinder.

[0017] In the dyeing device for micro-nano antibacterial fabric described above, the impurity filtration mechanism includes a filter box that is fixedly connected to the outer wall of the bottom end of the dyeing cylinder. The bottom opening of the filter box is threaded with a sealing plug, and the top end of the sealing plug is movably connected with a support mesh. A filter gauze layer is fixedly connected to the upper surface of the support mesh.

[0018] In the dyeing device for micro-nano antibacterial fabric described above, a protective cover is movably sleeved on the wall of the L-shaped sealing tube. The bottom end of the protective cover contacts the upper surface of the hollow base. A touch panel is fixedly embedded in the top end of the protective cover, and a PLC controller is fixedly connected to the inner wall of the bottom end of the protective cover.

[0019] Compared with existing technologies, the advantages of a dyeing device for micro / nano antibacterial fabrics are:

[0020] 1. Through the established dyeing auxiliary mechanism, concentrated dye supply mechanism, and drive mechanism, when the micro-nano antibacterial fabric sample is dyed with newly formulated dye, the sample is first placed inside a rotating mesh cylinder and sealed with a cap. Then, an appropriate amount of newly formulated dye is injected into the dye cylinder for temporary storage. Next, an appropriate amount of purified water is injected into the hollow base through the one-way inlet valve and L-shaped tube. Afterward, the operator sends instructions to the PLC controller via the touch panel. The PLC controller controls the dyeing auxiliary mechanism, concentrated dye supply mechanism, and drive mechanism to perform the dyeing operation on the micro-nano antibacterial fabric sample inside the rotating mesh cylinder. The centrifugal force generated by the rotation of the mesh cylinder can increase the dyeing efficiency. The dyeing process enhances the penetration effect and improves the dyeing result. Furthermore, the dye concentration is detected online by a UV-Vis online spectral sensor as the dye solution enters the insulated cylinder. The sensor then converts the dye concentration into an electrical signal, which is sent to the PLC controller. The PLC controller adaptively adjusts the opening of the solenoid valve based on the detection results, regulating the supply of concentrated dye and ensuring a stable dye concentration in the dye solution. This not only ensures the quality of the dyeing of the micro-nano antibacterial fabric samples but also eliminates the waste caused by excessive dye weighting during the dyeing process, reducing dyeing costs. It also improves the uniformity of dyeing the micro-nano antibacterial fabric samples, thereby enhancing the accuracy of the dyeing results.

[0021] 2. Through the set heating components, when the micro-nano antibacterial fabric sample is dyed with dye, the micro water pump delivers the dye to the metal tube. During the process of passing through the heat insulation cover, the electric heating tube is controlled by the PLC controller to operate. The electric heating tube converts electrical energy into heat energy, which is then conducted through the heat-conducting mesh and the metal tube to raise the temperature of the dye. After the dye enters the heat insulation cylinder, the temperature is measured by the temperature sensor, and the measured temperature value is converted into an electrical signal and sent to the PLC controller. The PLC controller can conveniently control the temperature of the dye by adjusting the heating power of the electric heating tube. This allows a small amount of dye to be heated quickly through the metal tube, without waiting for the temperature of all the dye in the hollow base to reach the standard before dyeing, thereby effectively improving the efficiency and convenience of dyeing micro-nano antibacterial fabric samples.

[0022] 3. Through the established dye liquor impurity filtration mechanism, after the dye liquor dyes the micro-nano antibacterial fabric sample in the dyeing cylinder, the excess dye liquor is filtered through the impurity filtration mechanism and returned to the hollow base for reuse. The filter gauze layer and support mesh in the impurity filtration mechanism can effectively filter out fiber impurities adhering to the surface of the micro-nano antibacterial fabric sample mixed in with the dye liquor, avoiding the fiber impurities from clogging the micro water pump and metal pipe, ensuring the continuous and stable dyeing process of the micro-nano antibacterial fabric sample. Moreover, the returned dye liquor can be quickly restored to the concentration required for dyeing the micro-nano antibacterial fabric sample by the concentrated dye supply mechanism, so that the micro-nano antibacterial fabric sample can be dyed continuously in a dye liquor environment with the specified dye concentration. This not only ensures the uniformity of dyeing, but also reduces the consumption of concentrated dye and reduces the cost of dyeing the micro-nano antibacterial fabric sample.

[0023] 4. Through the established dyeing auxiliary and driving mechanisms, after the dyeing process is completed, the waste discharge valve is opened to drain the waste dye solution from the device. Then, pure water is continuously injected into the dye cylinder and hollow base of the device, allowing the device to operate in dyeing mode again. The pure water flows within the device, cleaning the areas through which the dye solution flows and cleaning the dye cylinder, achieving self-cleaning of the dye solution channel and preventing dye adhesion from interfering with the next dyeing operation. In addition, the pure water can also clean the dye floating on the surface of the micro-nano antibacterial fabric sample and facilitate subsequent processing of the micro-nano antibacterial fabric sample. After the micro-nano antibacterial fabric sample and the device are cleaned, the PLC controller controls the micro water pump and electric heating tube to operate, while the dual-axis motor continues to operate. The centrifugal force generated by the rotation of the rotating mesh cylinder can spin-dry the micro-nano antibacterial fabric sample, removing excess water and facilitating subsequent drying of the micro-nano antibacterial fabric sample, thus improving the efficiency of subsequent fabric drying. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a dyeing device for micro-nano antibacterial fabric provided by the present invention;

[0025] Figure 2 yes Figure 1 A cross-sectional structural diagram;

[0026] Figure 3 yes Figure 2 A partially enlarged structural diagram;

[0027] Figure 4 This is a schematic diagram of the nozzle part in a dyeing device for micro-nano antibacterial fabric provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the hollow cylindrical part in the dyeing device for micro-nano antibacterial fabric provided by the present invention;

[0029] Figure 6 This is a schematic diagram of the impurity filtration mechanism in a dyeing device for a micro-nano antibacterial fabric provided by the present invention.

[0030] Figure 7 This is a schematic diagram of the heating component in a dyeing device for micro-nano antibacterial fabric provided by the present invention.

[0031] In the diagram: 1. Hollow base; 2. Dyeing cylinder; 3. Sealing cap; 4. Dyeing auxiliary mechanism; 41. Heat insulation cylinder; 42. First sealed bearing; 43. Hollow cylinder; 44. Micro-spray nozzle; 45. Connecting hole; 46. Rotating screen cylinder; 47. Normally closed solenoid valve; 48. L-shaped sealing tube; 49. Nozzle; 410. Second sealed bearing; 411. Metal pipe; 412. Micro water pump; 413. Temperature sensor; 414. UV-Vis online spectral sensor; 5. Vertical plate; 6. Drive mechanism; 61. Dual-axis motor; 62. First helical gear; 63. Second helical gear, 64 stirring blade, 7 concentrated dye supply mechanism, 71 adjustable solenoid valve, 72 dye cylinder, 73 top cover, 8 impurity filtration mechanism, 81 filter box, 82 sealing plug, 83 support mesh, 84 filter gauze layer, 9 heating component, 91 heat insulation cover, 92 heat conducting mesh block, 93 electric heating tube, 10 waste discharge valve, 11 L-shaped tube, 12 liquid inlet check valve, 13 pressure sensor, 14 pressure relief solenoid valve, 15 universal ball bearing, 16 protective cover, 17 touch panel, 18 PLC controller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-7As shown, a dyeing device for micro-nano antibacterial fabric includes a hollow base 1. A dyeing cylinder 2 is fixedly connected to the upper surface of the hollow base 1. The opening end of the dyeing cylinder 2 has a connecting thread, and a sealing cap 3 is threadedly connected to the inner wall of the opening end of the dyeing cylinder 2. A through hole is opened on the outer wall of the dyeing cylinder 2, and a dyeing auxiliary mechanism 4 is fixedly connected to the wall of the through hole. The dyeing auxiliary mechanism 4 includes a heat insulation cylinder 41 fixedly connected to the dyeing cylinder 2. Two first sealing bearings 42 are fixedly connected to the inner wall of the heat insulation cylinder 41. A hollow cylinder 43 is fixedly connected to the inner wall of the two first sealing bearings 42. A plurality of micro-spray holes 44 are opened on the outer wall of the hollow cylinder 43 located inside the dyeing cylinder 2. A connecting hole 45 is opened on the outer wall of the hollow cylinder 43 located inside the heat insulation cylinder 41. A rotating mesh cylinder 46 is fixedly sleeved on the outer wall of the hollow cylinder 43 located inside the dyeing cylinder 2. A normally closed solenoid valve 47 is fixedly connected to the outer wall of the heat insulation cylinder 41. The output end of the normally closed solenoid valve 47 is fixedly connected to... L-shaped sealing tube 48, the sealing end of L-shaped sealing tube 48 passes through the side wall of dyeing cylinder 2. Multiple nozzles 49 are fixedly connected to the outer wall of the inner side of dyeing cylinder 2. A second sealing bearing 410 is fixedly connected to the side end of hollow cylinder 43. A metal tube 411 is fixedly connected to the inner wall of the second sealing bearing 410. The bottom end of metal tube 411 passes through the top of hollow base 1 and is fixedly connected to a micro water pump 412. Temperature sensors are fixedly embedded in the wall of heat insulation cylinder 41. Sensor 413 and UV-Vis online spectral sensor 414, a heating component 9 is fixedly sleeved on the wall of metal tube 411, the heating component 9 includes a heat insulation cover 91 fixedly sleeved on the outer wall of metal tube 411, the bottom end of heat insulation cover 91 is fixedly connected to the upper surface of hollow base 1, multiple heat-conducting mesh blocks 92 are fixedly sleeved on the wall of metal tube 411, an electric heating tube 93 is fixedly embedded at the top of heat insulation cover 91, and the bottom end of electric heating tube 93 passes through multiple heat-conducting mesh blocks 92.

[0034] A vertical plate 5 is fixedly connected to the upper surface of the hollow base 1. A drive mechanism 6 is fixedly connected to the outer wall of the vertical plate 5. The drive mechanism 6 includes a dual-axis motor 61 fixedly connected to the outer wall of the vertical plate 5. A first helical gear 62 is fixedly connected to the top drive end of the dual-axis motor 61. A second helical gear 63 that meshes perpendicularly with the first helical gear 62 is fixedly sleeved on the outer wall of the hollow cylinder 43. The bottom drive end of the dual-axis motor 61 passes through the bottom end of the hollow base 1 through a third sealed bearing and is fixedly connected to a stirring blade 64.

[0035] A concentrated dye supply mechanism 7 is fixedly connected to the upper surface of the hollow base 1. The concentrated dye supply mechanism 7 includes an adjustable solenoid valve 71 fixedly connected to the upper surface of the hollow base 1. A dye cylinder 72 is fixedly connected to the top of the adjustable solenoid valve 71. A top cover 73 is movably connected to the inner wall of the top opening of the dye cylinder 72.

[0036] The bottom outer wall of the dyeing cylinder 2 is fixedly connected to an impurity filtration mechanism 8. The liquid outlet of the impurity filtration mechanism 8 is fixedly connected to the side wall of the hollow base 1. The impurity filtration mechanism 8 includes a filter box 81 fixedly connected to the bottom outer wall of the dyeing cylinder 2. The bottom opening of the filter box 81 is threadedly connected to a sealing plug 82. The top of the sealing plug 82 is movably connected to a support mesh 83. The upper surface of the support mesh 83 is fixedly connected to a filter gauze layer 84. This mechanism can prevent impurities from clogging the micro water pump 412 and the metal pipe 411 inside the device.

[0037] A waste discharge valve 10 and an L-shaped pipe 11 are fixedly connected to the side wall of the hollow base 1. A liquid inlet check valve 12 is fixedly connected to the top of the L-shaped pipe 11. A fixed through hole is opened on the side wall of the dyeing cylinder 2, and a pressure sensor 13 is fixedly connected to the wall of the fixed through hole. A pressure relief solenoid valve 14 is fixedly connected to the top of the dyeing cylinder 2. A universal ball bearing 15 for supporting the rotating screen cylinder 46 is fixedly connected to the inner wall of the dyeing cylinder 2. The ball bearings of the universal ball bearing 15 contact the outer wall of the rotating screen cylinder 46 and limit the rotation of the rotating screen cylinder 46, thereby improving the stability of the rotation of the rotating screen cylinder 46. A protective cover 16 is movably sleeved on the wall of the L-shaped sealing pipe 48. The bottom end of the protective cover 16 is connected to the hollow base. The upper surface of the base 1 is in contact with the top of the protective cover 16, and a touch panel 17 is fixedly embedded in the top. A PLC controller 18 is fixedly connected to the inner wall of the bottom end of the protective cover 16. When the device is in use, if the pressure sensor 13 detects that the air pressure in the dyeing cylinder 2 exceeds the preset safety pressure threshold of the PLC controller 18, the PLC controller 18 will promptly control the pressure relief solenoid valve 14 to be energized and opened. The pressure relief solenoid valve 14 will relieve the pressure on the dyeing cylinder 2 to ensure the safety of the device. In addition, after the pressure of the dyeing cylinder 2 is relieved, if the pressure detected by the pressure sensor 13 is lower than the preset safety pressure threshold of the PLC controller 18, the PLC controller 18 will promptly control the pressure relief solenoid valve 14 to close.

[0038] The normally closed solenoid valve 47, the micro water pump 412, the dual-axis motor 61, the adjustable solenoid valve 71, the electric heating element 93, and the pressure relief solenoid valve 14 are all electrically connected to the output terminal of the PLC controller 18 via wires. The temperature sensor 413, the pressure sensor 13, and the UV-Vis online spectral sensor 414 are all electrically connected to the input terminal of the PLC controller 18 via wires. The above-mentioned energized components and electrical connections are all existing technologies and will not be described in detail here.

[0039] The operating principle of the present invention is described as follows: When the micro-nano antibacterial fabric sample is dyed with the newly prepared dye, the micro-nano antibacterial fabric sample is first placed in the rotating mesh cylinder 46 and sealed with the sealing cap 3. Then, an appropriate amount of the newly prepared dye is injected into the dye cylinder 72 for temporary storage. Then, an appropriate amount of pure water is injected into the hollow base 1 through the liquid inlet one-way valve 12 and the L-shaped tube 11 (the amount of pure water and the amount of the newly prepared dye are both proportional to the size of the micro-nano antibacterial fabric sample).

[0040] Afterwards, the staff sends instructions to the PLC controller 18 via the touch panel 17. The PLC controller 18 controls the micro water pump 412, adjustable solenoid valve 71, dual-axis motor 61, and normally closed solenoid valve 47 to be energized. After the adjustable solenoid valve 71 is energized, it will conduct (the initial valve opening of the adjustable solenoid valve 71 is half of the total valve opening), so that the concentrated dye in the dye cylinder 72 flows into the pure water liquid in the hollow base 1 under the action of gravity, so that the concentrated dye and pure water liquid mix to form the dye solution required for dyeing the micro-nano antibacterial fabric sample. At the same time, the bottom drive end of the dual-axis motor 61 drives the stirring blade 64 to rotate. The stirring blade 64 can ensure that the concentrated dye and pure water liquid mix. After the purified water is thoroughly mixed, the micro water pump 412 transports the dye solution inside the hollow base 1 to the hollow cylinder 43 through the metal pipe 411. The dye solution inside the hollow cylinder 43 is sprayed into the micro-nano antibacterial fabric sample through the micro nozzles 44. At the same time, the top drive end of the dual-axis motor 61 drives the hollow cylinder 43 to rotate through the first helical gear 62 and the second helical gear 63. The hollow cylinder 43 drives the rotating mesh cylinder 46 to rotate. The rotating mesh cylinder 46 enables the micro-nano antibacterial fabric sample to fully contact the dye solution sprayed from the micro nozzles 44. At this time, the centrifugal force of the rotating mesh cylinder 46 can improve the penetration effect of the dye solution in the micro-nano antibacterial fabric sample, thereby improving the dyeing effect.

[0041] Meanwhile, the dyeing solution inside the hollow cylinder 43 also enters the heat insulation cylinder 41 through the connecting hole 45. Then, the dyeing solution inside the heat insulation cylinder 41 enters the L-shaped sealing tube 48 through the normally closed solenoid valve 47 that is opened by electricity. Finally, the dyeing solution inside the L-shaped sealing tube 48 is sprayed out through the nozzle 49. The dyeing solution sprayed out by the nozzle 49 passes through the mesh of the rotating mesh cylinder 46 and can dye the micro-nano antibacterial fabric sample near the inner wall of the rotating mesh cylinder 46. This avoids the micro-nano antibacterial fabric sample from not being able to fully contact the dyeing solution of qualified concentration, which would result in uneven dyeing and ensure the dyeing effect of the micro-nano antibacterial fabric sample.

[0042] The dye solution, transported by the miniature water pump 412 through the metal pipe 411, enters the heat-insulating cylinder 41. The concentration of the dye is detected online by the UV-Vis online spectrometer 414. At this time, the detection end of the UV-Vis online spectrometer 414 is completely submerged in the dye solution inside the heat-insulating cylinder 41, ensuring effective detection. The UV-Vis online spectrometer 414 utilizes the selective absorption of specific wavelengths of light by dye molecules to emit ultraviolet / visible light of a specific wavelength that penetrates the dye solution, detecting the intensity of the transmitted light. The absorbance is calculated using the ratio of "initial light intensity - transmitted light intensity," and then correlated with the dye solution concentration. The UV-Vis online spectrometer 414 then converts the dye concentration into an electrical signal and sends it to the PLC controller 18. If the dye concentration does not reach the preset dye concentration threshold of the PLC controller 18, the PLC controller 18 controls the adjustable solenoid valve 71 to increase its opening, thereby increasing the concentration. The supply of dye is controlled to prevent the dye concentration inside the hollow base 1 from being too low, which would interfere with the dyeing quality and affect the dyeing efficiency. Conversely, if the dye concentration exceeds the dye concentration threshold preset by the PLC controller 18, the PLC controller 18 controls the opening of the adjustable solenoid valve 71 to decrease, thereby reducing the supply of concentrated dye and preventing the dye concentration inside the hollow base 1 from being too high, which would interfere with the dyeing quality. The online detection of dye concentration by the UV-Vis online spectral sensor 414 can continuously ensure the stability of the dye concentration. In particular, the dye concentration of the dye solution will not change in the later stage of dyeing the micro-nano antibacterial fabric sample. This not only ensures the dyeing quality of the micro-nano antibacterial fabric sample, but also eliminates the need for excessive dye weighting during the dyeing process, thus reducing dyeing costs and improving the uniformity of dyeing the micro-nano antibacterial fabric sample, thereby improving the accuracy of the dyeing results of the micro-nano antibacterial fabric sample.

[0043] When the micro-nano antibacterial fabric sample is dyed with dye solution, the micro water pump 412 delivers the dye solution into the metal tube 411. During the process of passing through the heat insulation cover 91, the electric heating tube 93 is energized by the PLC controller 18. The electric heating tube 93 converts electrical energy into heat energy, which is then conducted through the heat-conducting mesh 92 and the metal tube 411 to raise the temperature of the dye solution. After the dye solution enters the heat insulation cylinder 41, the temperature is measured by the temperature sensor 413, and the measured temperature value is converted into an electrical signal and sent to the PLC controller 18. If the temperature value detected by the temperature sensor 413 does not reach the level of the PLC controller, the PLC controller will detect the dye solution. When the preset dye liquor temperature threshold is reached, the PLC controller 18 controls the power of the electric heating tube 93 to increase, so that more electrical energy is converted into heat energy to raise the dye liquor temperature. Conversely, when the dye liquor temperature is higher than the preset dye liquor temperature threshold of the PLC controller 18, the PLC controller 18 controls the heating power of the electric heating tube 93 to reduce, ensuring that the dye liquor temperature meets the requirements. Moreover, the small amount of dye liquor is quickly heated by the metal tube 411, without waiting for the temperature of all the dye liquor in the hollow base 1 to reach the standard before dyeing, thereby effectively improving the efficiency and convenience of dyeing micro-nano antibacterial fabric samples.

[0044] After the dyeing solution dyes the micro-nano antibacterial fabric sample in the dyeing cylinder 2, the excess dye solution is filtered through the impurity filtration mechanism 8 and then returned to the hollow base 1 for reuse. The filter gauze layer 84 and the support mesh 83 in the impurity filtration mechanism 8 can effectively filter the fiber impurities attached to the surface of the micro-nano antibacterial fabric sample mixed in the dye solution, avoiding the fiber impurities from clogging the micro water pump 412 and the metal pipe 411, ensuring the continuous and stable dyeing process of the micro-nano antibacterial fabric sample. Moreover, the returned dye solution can be quickly restored to the concentration required for dyeing the micro-nano antibacterial fabric sample by the concentrated dye supply mechanism 7, so that the micro-nano antibacterial fabric sample can be dyed continuously in a dye solution environment with a dye concentration that meets the regulations. This not only ensures the uniformity of dyeing, but also reduces the consumption of concentrated dye and reduces the cost of dyeing the micro-nano antibacterial fabric sample.

[0045] In addition, after dyeing, the equipment can also clean the micro-nano antibacterial fabric sample. At this time, the PLC controller 18 controls the adjustable solenoid valve 71 to close, and at the same time opens the waste discharge valve 10 to discharge the unwanted dye liquor from the hollow base 1. The dye liquor is transported to the wastewater treatment equipment through pipelines for treatment. Moreover, pure water is continuously injected into the hollow base 1 through the L-shaped pipe 11 and the liquid inlet check valve 12, and the pure water is also injected into the dye cylinder 72 through the water pipe to clean the dye cylinder 72 and the adjustable solenoid valve 71. Then, the pure water is drawn out by the micro water pump 412 inside the hollow base 1. At this time, the PLC controller 18 still controls the dual-axis motor 61. The operation of the electric heating tube 93 and the normally closed solenoid valve 47 allows pure water to flush the dye liquor flow channel, achieving self-cleaning of the dye liquor channel of the equipment. In addition, pure water is also sprayed out through the micro-spray hole 44 and the nozzle 49 to clean the micro-nano antibacterial fabric sample, which can clean the dye floating on the surface of the micro-nano antibacterial fabric sample. Furthermore, the electric heating tube 93 can increase the temperature of the cleaning water. Using warm water can improve the cleaning effect. During the cleaning of the device, the sealing plug 82 of the impurity filtration mechanism 8 is opened first, and the support mesh 83 and the filter gauze layer 84 are taken out and cleaned separately to ensure the cleaning effect and at the same time ensure the reliability of the impurity filtration mechanism 8 for reuse.

[0046] After the micro-nano antibacterial fabric sample and device are cleaned, the PLC controller 18 controls the micro water pump 412 and the electric heating tube 93 to work. The dual-axis motor 61 continues to work. The dual-axis motor 61 rotates the hollow cylinder 43 through the first helical gear 62 and the second helical gear 63. The hollow cylinder 43 drives the rotating mesh cylinder 46 to rotate. The centrifugal force generated by the rotation of the rotating mesh cylinder 46 can spin dry the micro-nano antibacterial fabric sample, remove excess water, and facilitate the subsequent drying of the micro-nano antibacterial fabric sample, thereby improving the efficiency of subsequent drying of the fabric.

[0047] In summary, this micro-nano antibacterial fabric dyeing device not only has dyeing and self-cleaning functions, but also functions for washing and spin-drying the fabric's floating dye layer. Moreover, the dyeing process does not require the use of excessive dye to balance a large amount of dye liquor, reducing dyeing costs. At the same time, the dye liquor temperature is easy to control, improving the convenience and efficiency of fabric dyeing. Furthermore, the device has the function of online monitoring and control of dye concentration in the dye liquor, which can ensure the stability of dye concentration in the dye liquor, improve the quality of micro-nano antibacterial fabric dyeing, and ensure the accuracy of the dyeing results of micro-nano antibacterial fabric samples.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dyeing device for micro-nano bacteriostatic fabric, comprising a hollow base (1), characterized in that, The upper surface of the hollow base (1) is fixedly connected with a dyeing cylinder (2), the opening end of the dyeing cylinder (2) is provided with a connecting thread, and the opening end inner wall of the dyeing cylinder (2) is threadedly and sealingly connected with a sealing cover (3); The outer wall of the dyeing cylinder (2) is provided with a through hole, and the hole wall of the through hole is fixedly connected with a dyeing auxiliary mechanism (4), the dyeing auxiliary mechanism (4) comprises a heat insulation cylinder (41) fixedly connected with the dyeing cylinder (2), the inner wall of the heat insulation cylinder (41) is fixedly connected with two first sealing bearings (42), the inner walls of the two first sealing bearings (42) are fixedly connected with a hollow cylinder (43) in common, a plurality of micro injection holes (44) are formed in the outer wall of the hollow cylinder (43) on the inner side of the dyeing cylinder (2), a communication hole (45) is formed in the outer wall of the hollow cylinder (43) on the inner side of the heat insulation cylinder (41), a rotating mesh cylinder (46) is fixedly sleeved on the outer wall of the hollow cylinder (43) on the inner side of the dyeing cylinder (2), the outer wall of the heat insulation cylinder (41) is fixedly communicated with a normally closed electromagnetic valve (47), the output end of the normally closed electromagnetic valve (47) is fixedly communicated with an L-shaped sealing pipe (48), the sealing end of the L-shaped sealing pipe (48) penetrates through the side wall of the dyeing cylinder (2), a plurality of nozzles (49) are fixedly communicated with the outer wall of the L-shaped sealing pipe (48) on the inner side of the dyeing cylinder (2), a second sealing bearing (410) is fixedly connected with the side end of the hollow cylinder (43), a metal pipe (411) is fixedly communicated with the inner wall of the second sealing bearing (410), the bottom end of the metal pipe (411) penetrates through the top end of the hollow base (1) and is fixedly communicated with a micro water pump (412), a temperature sensor (413) and a UV-Vis online spectrum sensor (414) are fixedly embedded in the pipe wall of the heat insulation cylinder (41), and a heating assembly (9) is fixedly sleeved on the pipe wall of the metal pipe (411); The upper surface of the hollow base (1) is fixedly connected with a vertical plate (5), and the outer wall of the vertical plate (5) is fixedly connected with a driving mechanism (6); The upper surface of the hollow base (1) is fixedly communicated with a concentrated dye supply mechanism (7); The bottom end outer wall of the dyeing cylinder (2) is fixedly communicated with an impurity filtering mechanism (8), and the liquid outlet end of the impurity filtering mechanism (8) is fixedly communicated with the side wall of the hollow base (1); The side wall of the hollow base (1) is fixedly communicated with a waste discharge valve (10) and an L-shaped pipe (11), and the top end of the L-shaped pipe (11) is fixedly communicated with an inlet one-way valve (12). 2.The dyeing device of the micro-nano bacteriostatic fabric according to claim 1, characterized in that, The heating assembly (9) comprises a heat insulation cover (91) fixedly sleeved on the outer wall of the metal pipe (411), the bottom end of the heat insulation cover (91) is fixedly connected with the upper surface of the hollow base (1), a plurality of heat conduction mesh blocks (92) are fixedly sleeved on the pipe wall of the metal pipe (411), an electric heating pipe (93) is fixedly embedded in the top end of the heat insulation cover (91), and the bottom end of the electric heating pipe (93) penetrates through the plurality of heat conduction mesh blocks (92). 3.The dyeing device of the micro-nano bacteriostatic fabric of claim 1, wherein, The driving mechanism (6) includes a double-shaft motor (61) fixedly connected with the outer wall of the vertical plate (5), the top driving end of the double-shaft motor (61) is fixedly connected with a first helical gear (62), the outer wall of the hollow cylinder (43) is fixedly sleeved with a second helical gear (63) vertically engaged with the first helical gear (62), and the bottom driving end of the double-shaft motor (61) passes through the bottom end of the hollow base (1) through a third sealing bearing and is fixedly connected with a stirring blade (64). 4.The dyeing device of the micro-nano bacteriostatic fabric of claim 1, wherein, The side wall of the dyeing cylinder (2) is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with a pressure sensor (13), the top end of the dyeing cylinder (2) is fixedly connected with a pressure relief electromagnetic valve (14), and the inner wall of the dyeing cylinder (2) is fixedly connected with a universal ball bearing (15) for supporting the rotating mesh cylinder (46).

5. The dyeing device of a micro-nano bacteriostatic fabric according to claim 1, characterized in that, The concentrated dye supply mechanism (7) includes an adjustable electromagnetic valve (71) fixedly communicated with the upper surface of the hollow base (1), the top end of the adjustable electromagnetic valve (71) is fixedly communicated with a dye cylinder (72), and the top opening inner wall of the dye cylinder (72) is movably connected with a top cover (73). 6.The dyeing device of the micro-nano bacteriostatic fabric according to claim 1, characterized in that, The impurity filtering mechanism (8) includes a filter box (81) fixedly communicated with the bottom end outer wall of the dyeing cylinder (2), the bottom end opening of the filter box (81) is screwedly connected with a sealing plug (82), the top end of the sealing plug (82) is movably connected with a supporting mesh (83), and the upper surface of the supporting mesh (83) is fixedly connected with a filter gauze layer (84).

7. The dyeing device of a micro-nano bacteriostatic fabric according to claim 1, characterized in that, The pipe wall of the L-shaped sealing pipe (48) movably sleeved with a protective cover (16), the bottom end of the protective cover (16) is in contact with the upper surface of the hollow base (1), the top end of the protective cover (16) is fixedly embedded with a touch panel (17), and the bottom end inner wall of the protective cover (16) is fixedly connected with a PLC controller (18).

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