Ultra-high pressure salt-free dyeing device and dyeing method thereof

Abstract

The present application relates to an ultra-high pressure salt-free dyeing device and a dyeing method thereof, and relates to the technical field of printing and dyeing, which comprises a support frame, a plurality of high pressure dyeing cabins are installed on the support frame, a pressurizing device is arranged on the side of the support frame, an upper cabin body plugging assembly is installed on the upper end of the high pressure dyeing cabin, a rotary lifting assembly is installed on the side of the high pressure dyeing cabin, and a lower cabin body plugging assembly is arranged on the lower end of the high pressure dyeing cabin; a switch valve assembly and a quick pressure relief valve are arranged on the lower cabin body plugging assembly; the switch valve assembly is connected to the ultra-high pressure equipment through a pipeline; a pressure bearing frame is slidably installed under the support frame; a plug body lifting member is installed at the lower end of the high pressure dyeing cabin, and the plug body lifting member is fixed at the output end and connected to the support frame; a heating assembly is installed on the high pressure dyeing cabin; an isolation container is placed in the high pressure dyeing cabin; and the isolation container is used to hold cheese yarn. The present application has the effect of achieving salt-free dyeing.

Description

Technical Field

[0001] The present application relates to the technical field of printing and dyeing, and in particular to an ultra-high pressure salt-free dyeing device and a dyeing method thereof. Background Art

[0002] Reactive dyes used in dyeing cheese yarn (loose cotton) are the most important dye category for textile printing and dyeing. In traditional dyeing processes, salt is widely used as a dyeing auxiliary in the dyeing process. However, the use of salt not only increases the difficulty of wastewater treatment, but also causes certain pollution to the environment. The research on low-salt and salt-free dyeing process of reactive dyes mainly focuses on the development of new low-salt and salt-free reactive dyes, cationization modification of cellulose fibers, and addition of substitute salt dyeing auxiliaries. Due to the cost of reactive dyes and secondary pollution, it is difficult to achieve large-scale production; reactive dyes covalently bind to cotton fibers during dyeing, but dye molecules and cellulose macromolecules are particles with the same electrical properties in aqueous solution, and the dyes can also undergo hydrolysis while bonding with fibers, resulting in a single-active group reactive dye fixation rate of only 50% to 60%. Although the fixation rate of double-active and multi-active group reactive dyes has been greatly improved, up to 90%, most of them are around 80% in actual application. In order to improve the dye fixation rate, 30 to 150 g / L of sodium chloride or sodium sulfate needs to be added during dyeing to inhibit the accumulation of negative charges on the cotton fiber surface and promote the adsorption of dyes on the fiber surface and diffusion into the fiber interior; the use of a large amount of inorganic salts not only increases production costs, but also deviates from the vision of "green and clean production and low-carbon circular economy". Summary of the invention

[0003] The purpose of the present application is to provide an ultra-high pressure salt-free dyeing device and a dyeing method thereof, so as to solve the technical problem that "the dyeing process of cheese yarn (loose cotton) requires the participation of salt, causing pollution".

[0004] The present application provides an ultra-high pressure salt-free dyeing device and a dyeing method thereof adopt the following technical scheme: an ultra-high pressure salt-free dyeing device and a dyeing method thereof include a support frame, the support frame is equipped with a plurality of high-pressure dyeing cabins, and an ultra-high pressure device is arranged on the side of the support frame, and the ultra-high pressure device is used to generate ultra-high pressure; an upper cabin body plugging assembly is arranged on the upper end of the high-pressure dyeing cabin, and a rotary lifting assembly is arranged on the side of the high-pressure dyeing cabin, and the rotary lifting assembly is used to control the lifting and rotation of the upper cabin body plugging assembly; a lower cabin body plugging assembly is arranged on the lower end of the high-pressure dyeing cabin; a switch valve assembly and a quick pressure relief valve are arranged on the lower cabin body plugging assembly; the switch valve assembly is connected to the ultra-high pressure equipment through a pipeline; a pressure-bearing frame is slidably installed on the support frame, and the pressure-bearing frame is used to limit the displacement of the upper cabin body plugging assembly and the lower cabin body plugging assembly; a heating assembly is installed on the high-pressure dyeing cabin, and the heating assembly is used to heat up the liquid inside the high-pressure dyeing cabin; an isolation container is placed in the high-pressure dyeing cabin; the isolation container is used to hold cheese yarn and dye liquid.

[0005] Optionally, slide rails are fixed on both sides of the support frame, and the pressure frame is slidably installed on the slide rails; traction members are fixed at the ends of the slide rails, and the traction members are used to control the displacement of the pressure frame; the pressure frame includes a pressure base, a pressure beam fixed on the pressure base, and a U-shaped pressure beam fixed on the pressure base; a sliding roller cooperating with the slide rails is installed on the pressure base; the pressure beam is abutted against the lower cabin sealing assembly; the U-shaped pressure beam is abutted against the upper cabin sealing assembly.

[0006] Optionally, the high-pressure dyeing cabin includes an inner cabin body and an outer cabin body; the heating component is sleeved on the inner cabin body; the upper cabin body blocking component includes an upper plug body inserted into the upper end of the inner cabin body and a rotary lifting base plate abutting against the outer cabin body; an exhaust channel is opened on the upper plug body, an exhaust cavity is arranged at the lower end of the exhaust channel, a sealing ball for blocking the exhaust channel is arranged in the exhaust cavity, an exhaust piston is arranged in the exhaust cavity, the sealing ball is movably connected to the exhaust piston, an exhaust baffle is fixed on the lower side of the exhaust cavity, and an exhaust pipe is connected to the side of the exhaust channel; the upper side of the exhaust cavity It is a conical cavity with a cylindrical cavity on the lower side; a fine-tuning cylinder is installed on the upper plug body; when the upper plug starts to rise, the output end of the fine-tuning cylinder abuts against the upper end of the inner cabin body; the exhaust piston is gyroscope-shaped, an exhaust groove is arranged around the exhaust piston, a plurality of exhaust holes are arranged on the exhaust piston, and a spherical groove for placing a sealing ball is opened on the top of the exhaust piston; an adjusting nut is fixed on the exhaust baffle, an adjusting bolt is threadedly installed on the adjusting nut, the adjusting bolt abuts against the exhaust piston, and the adjusting bolt is used to adjust the height of the exhaust piston in the exhaust cavity.

[0007] Optionally, the lower cabin body sealing assembly is installed on a support frame; the lower cabin body sealing assembly includes a lower plug body sealing the lower end of the inner cabin body and a switch valve assembly installed on the outside of the lower plug body; a water injection channel is opened on the lower plug body; the switch valve assembly is connected to the ultra-high pressure equipment; the switch valve assembly is connected to the water injection pipe, and a three-way pipe is arranged between the water injection pipe and the pipeline; a hydraulic control valve is installed at one end of the water injection pipe connected to the three-way pipe, and the quick pressure relief valve is installed on the three-way pipe for controlling the pressure relief; a plurality of plug lifting parts are fixed on the high-pressure dyeing cabin, and the plug lifting parts are used to separate the lower cabin body sealing assembly from the high-pressure dyeing cabin.

[0008] Optionally, the rotary lifting assembly includes a lifting hydraulic cylinder fixed on a support frame, a supporting sleeve fixed at the upper end of the lifting hydraulic cylinder, a telescopic sleeve rod slidably installed in the support sleeve, the lifting hydraulic cylinder controls the telescopic sleeve rod to move up and down in the support sleeve, and the telescopic sleeve rod is rotatably connected to the output end of the lifting hydraulic cylinder; a limiting track is provided on the support sleeve, and a limiting roller cooperating with the limiting track is fixed on the telescopic sleeve rod; the limiting track includes a vertical lifting section and a limiting flipping section; the upper plug body is fixed to the top of the telescopic sleeve rod, and the rotary lifting base plate is fixed to the top of the support sleeve.

[0009] Optionally, a safety monitoring component is installed on the pressure frame; the safety monitoring component includes a deformation rod, a deformation locking piece fixed to the upper end of the pressure frame, a deformation supporting piece fixed to the pressure frame and a deformation measuring piece fixed to the lower end of the pressure frame; the deformation locking piece is fixedly connected to the upper end of the deformation rod; the deformation supporting piece is slidably connected to the deformation rod; the deformation measuring piece is fixedly connected to the deformation rod; the deformation measuring piece is used to convert the deformation signal of the pressure frame into an electrical signal to monitor the deformation value; the deformation measuring piece includes a deformation measuring seat, a sliding resistor is fixed on the deformation measuring seat, and a sliding terminal is installed on the lower end of the deformation rod; the sliding terminal is slidably connected to the deformation measuring seat; the sliding terminal is slidably connected to the sliding resistor.

[0010] Optionally, the isolation container includes an isolation base, on which a plurality of limit rods are fixed, an isolation top seat is fixed at one end of the limit rods away from the isolation base, a deformation sleeve is arranged between the isolation base and the isolation top seat, a cheese yarn series component is installed in the deformation sleeve; the cheese yarn series component includes a bottom plate, a series rod is fixed on the bottom plate, a limit end platform is installed at one end of the series rod away from the bottom plate; the limit end platform is threadedly connected to the series rod; the limit end platform is threadedly connected to the isolation top seat; a sealing ring is arranged between the limit end platform and the isolation top seat; a lifting ring is fixed to the side of the isolation top seat away from the isolation top seat.

[0011] Optionally, the ultra-high pressure equipment includes an oil tank, a pure water tank, and a plurality of ultra-high pressure pumps, wherein the pure water tank is connected to a water inlet of the ultra-high pressure pump, and a water outlet of the ultra-high pressure pump is connected to the pipeline;

[0012] The oil tank is used to store hydraulic oil and provide hydraulic oil to the ultra-high pressure pump so that the ultra-high pressure pump generates ultra-high pressure.

[0013] Optionally, the pipeline includes a main water pipe installed at the water outlet end of the ultra-high pressure pump, a water distribution piece installed on the main water pipe, and multiple water distribution pipes connecting the water distribution piece with the water injection pipe; the water distribution pipe is connected to the hydraulic control valve; a one-way valve is arranged between the main water pipe and the water distribution piece.

[0014] An ultra-high pressure salt-free dyeing method comprises the following steps:

[0015] S1, loose cone: wind the raw yarn into loose cone yarn suitable for dyeing winding density;

[0016] S2, Cage loading: The cheese yarn is loaded into the spindle tray rack by the robot, and then loaded and moved into the dyeing circulation equipment;

[0017] S3. Pretreatment before dyeing: The cheese yarn needs to be pretreated by washing, degreasing, bleaching, etc. to remove impurities on the surface;

[0018] S4, adsorption (dye is adsorbed by the fiber surface): prepare the dye solution according to the formula, inject it into the dyeing circulation equipment, start the dyeing diffusion circulation system, and ensure that the dye solution evenly penetrates into the spindle and is adsorbed by the fiber surface;

[0019] S5. The spindles are transferred out and loaded into the yarn isolation container: the dyed yarn is transferred out of the dyeing tank and transferred into the yarn isolation container to ensure that the initial dye solution can maintain a constant temperature and fully immerse the yarn;

[0020] S6, color fixing loading: move the yarn isolation container into the high pressure dyeing cabin:

[0021] S7, pressurized diffusion fixation: (dye fixation in fiber): start the ultra-high pressure equipment, increase the pressure in the high-pressure dyeing chamber to 100-400 MPa according to the process requirements, and maintain a certain period of time (adjusted according to the dye and fiber type) at a stable temperature and pressure. The dye solution further penetrates into the fiber evenly under the action of ultra-high pressure, effectively promoting the close combination of dye molecules and fiber molecules, and completing the combination and fixation of dyes in fibers under salt-free conditions, ensuring that the standard dyeing fastness is achieved, and improving the uniformity, color fastness and work efficiency of dyeing;

[0022] S8, depressurization and discharging: After dyeing and fixing, slowly reduce the pressure to normal pressure and take out the isolation container;

[0023] S9, taking out the sarong: taking out the sarong from the transfer barrel;

[0024] S10, floating color washing and dehydration: transfer the bobbin tray from the color fixing transfer cylinder to the high-efficiency dehydration and cleaning equipment for floating color washing;

[0025] S11, drying treatment: drying the washed and dehydrated bobbins;

[0026] S12, rewinding: rewinding the loose bobbin yarn into a tight bobbin yarn suitable for weaving fabrics;

[0027] S13. Packaging: The products are packed by automatic packaging machine before leaving the factory.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. An ultra-high pressure salt-free dyeing device and a dyeing method thereof. During the dyeing process, the dyed bobbin yarn is removed from the dyeing vat and transferred into a bobbin yarn isolation container, and then the isolation container is placed in a high-pressure dyeing cabin. Water is injected into the high-pressure dyeing cabin through an ultra-high pressure device to increase the pressure in the high-pressure dyeing cabin to 100-400 MPa. The temperature and pressure are maintained at a stable temperature and pressure for a certain period of time (adjusted according to the dye and fiber type). Under the action of ultra-high pressure, the dye solution further penetrates into the fiber evenly by physical means, effectively promoting the close combination of dye molecules and fiber molecules; during the dyeing process, there is no need to "add sodium chloride or sodium sulfate to inhibit the accumulation of negative charges on the surface of cotton fibers and promote the adsorption of dyes on the fiber surface and the diffusion of dyes into the fiber interior", which changes the chemical dyeing method in the prior art, thereby achieving salt-free dyeing.

[0030] 2. Ultra-high pressure dyeing technology uses the permeability of water molecules and the solubility of dye molecules under high pressure to enhance the permeability of dye molecules, so that the dye can further and evenly penetrate into the fiber and the fiber, effectively promoting the close combination of dye molecules and fiber molecules, enhancing color fastness, and achieving salt-free dyeing and color fixation. It solves the problem of large amount of salt used in reactive dyeing, high resource consumption, and difficult wastewater treatment, thereby reducing environmental pollution during the printing and dyeing process.

[0031] 3. Place the cheese in a cheese isolation container and use isostatic dual-medium pressurization to perform ultra-high pressure color fixing treatment on the workpiece to be dyed. The dyed object is immersed in a constant temperature isolation container filled with a dye bath. The internal pressurization medium of the isolation container is the dye bath, and the external pressurization medium is water or MDT emulsified oil. The dual-medium pressurization method can effectively prevent the external pressurization medium from contaminating the dyed object during the dyeing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the cross-sectional structure of the high-pressure dyeing cabin in an embodiment of the present application;

[0034] Figure 3 This is a schematic diagram of the pressure-bearing frame structure of an embodiment of the present application;

[0035] Figure 4 This is a schematic diagram of the structure of the rotary lifting assembly of the embodiment of the present application;

[0036] Figure 5 This is a schematic diagram of the structure of the upper cabin body blocking assembly according to an embodiment of the present application;

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the upper cabin body blocking assembly in an embodiment of the present application;

[0038] Figure 7 This is an embodiment of the present application Figure 6 A schematic diagram of the partially enlarged structure at center A;

[0039] Figure 8 This is a schematic diagram of the exhaust piston surface structure of an embodiment of the present application;

[0040] Fig. 9 It is a schematic diagram of the structure of the cabin plugging assembly in an embodiment of the present application;

[0041] Fig.10 is a schematic diagram of the cross-sectional structure of a cabin body plugging assembly according to an embodiment of the present application;

[0042] Fig.11 It is a schematic diagram of the cross-sectional structure of the rotary lifting assembly of the embodiment of the present application;

[0043] Fig.12 This is a schematic diagram of the limit track structure of the rotary lifting assembly of the embodiment of the present application;

[0044] Fig.13 This is a schematic diagram of the structure of the isolation container in the embodiment of the present application;

[0045] Fig.14 It is a schematic diagram of the structure of the ultra-high voltage equipment in the embodiment of the present application;

[0046] Fig.15 It is a schematic diagram of the pipeline structure of an embodiment of the present application;

[0047] Fig.16 It is a schematic diagram of the dyeing process flow of an embodiment of the present application;

[0048] In the figure, 1, support frame; 11, slide rail; 12, traction member; 13, pipeline; 131, main water pipe; 132, water distribution member; 133, water distribution pipe; 2, high-pressure dyeing cabin; 21, inner cabin; 22, outer cabin; 3, ultra-high pressure equipment; 31, oil tank; 32, pure water tank; 33, ultra-high pressure pump; 4, upper cabin plugging assembly; 41, upper plug body; 42, rotary lifting base plate; 43, exhaust channel; 44, exhaust cavity ; 45, sealing ball; 46, exhaust baffle; 461, adjusting nut; 462, adjusting bolt; 47, exhaust pipe; 48, fine-tuning cylinder; 49, exhaust piston; 491, exhaust groove; 492, exhaust hole; 493, spherical groove; 5, rotary lifting assembly; 51, lifting hydraulic cylinder; 52, supporting sleeve; 53, telescopic sleeve; 54, limit rail; 541, vertical lifting section; 542, limit flip section ; 55, limit roller; 6, lower cabin body plugging assembly; 61, lower plug body; 62, switch valve assembly; 621, water injection pipe; 622, three-way pipe; 623, hydraulic control valve; 624, one-way valve; 63, water injection channel; 64, quick pressure relief valve; 7, pressure frame; 71, pressure base; 72, pressure beam; 73, U-shaped pressure beam; 74, sliding roller; 75, safety monitoring assembly; 751, deformation pull rod ; 752, deformation locking member; 753, deformation supporting member; 754, deformation measuring member; 8, plug lifting member; 9, heating assembly; 10, isolation container; 101, isolation base; 102, limiting rod; 103, isolation top seat; 104, deformation sleeve; 105, cheese yarn series member; 1051, bottom plate; 1052, series rod; 1053, limiting end platform; 1054, sealing ring; 1055, lifting ring. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1 -Attached Fig.16 , further details of this application are given.

[0050] Reference Figure 1 , Figure 2, an ultra-high pressure salt-free dyeing device and a dyeing method thereof, comprising a support frame 1, two high-pressure dyeing cabins 2 are installed on the support frame 1, and an ultra-high pressure device 3 is arranged on the side of the support frame 1, and the ultra-high pressure device 3 is used to generate ultra-high pressure; an upper cabin body plugging component 4 is installed on the upper end of the high-pressure dyeing cabin 2, and a rotary lifting component 5 is installed on the side of the high-pressure dyeing cabin 2, and the rotary lifting component 5 is used to control the lifting and rotation of the upper cabin body plugging component 4; a lower cabin body plugging component 6 is arranged at the lower end of the high-pressure dyeing cabin 2; a switch valve component 62 and a quick pressure relief valve 64 are arranged on the lower cabin body plugging component 6; the switch valve component 62 is connected to the ultra-high pressure device 3 through a pipeline 13; a The pressure-bearing frame 7 is used to limit the displacement of the upper cabin body sealing component 4 and the lower cabin body sealing component 6; a part of the switch valve component 62 is fixedly installed on the support frame 1, and the other part is installed on the lower cabin body sealing component 6. Therefore, during the pressurization process, the displacement between the switch valve component 62 and the lower cabin body sealing component 6 is reduced, which can make the water injection more stable. A heating component 9 is installed on the high-pressure dyeing cabin 2, and the heating component 9 is used to heat up the liquid inside the high-pressure dyeing cabin 2 and maintain a constant temperature; an isolation container 10 is placed in the high-pressure dyeing cabin 2; the isolation container 10 is used to hold cheese yarn and dye solution; the heating component 9 includes three-section heating coils, and multiple patch temperature sensors.

[0051] Before pressurization, the high-pressure dyeing cabin 2 is preheated to 60-70 degrees Celsius. The temperature is kept constant within a certain range through a patch temperature sensor and a three-stage heating coil. The heating time is set according to the different dyeing materials. In the process of dyeing the cheese yarn, the dyed cheese yarn is removed from the dyeing tank and transferred to the isolation container 10 to ensure that the initial dye solution in the isolation container 10 can maintain a constant temperature and fully soak the cheese yarn. The isolation container 10 containing the cheese yarn is placed in the high-pressure dyeing cabin 2 through a crane. After the placement is completed, the rotary lifting component 5 is activated to make the upper cabin body sealing component 4 seal the upper end of the high-pressure dyeing cabin 2, and the lower cabin body sealing component 6 always keeps the lower end of the high-pressure dyeing cabin 2 sealed. The pressure frame 7 moves to the position of the high-pressure dyeing cabin 2. At this time, the ultra-high pressure equipment 3 starts to work, and water is injected into the high-pressure dyeing cabin 2 containing the cheese yarn, so that the water pressure in the high-pressure dyeing cabin 2 reaches 100-400MPa. After the pressure is increased, the pressure is maintained for a period of time (the pressure holding time is set according to the situation);

[0052] Then, the quick pressure relief valve 64 is opened to relieve the water pressure in the high-pressure dyeing cabin 2 to the normal water pressure, and the upper cabin body blocking component 4 is opened by the rotary lifting component 5. At this time, the dyed cheese yarn can be taken out for floating color washing and dehydration, drying, rewinding and packaging operations;

[0053] The support frame 1 is installed with two high-pressure dyeing cabins 2. During the process of high-pressure dyeing on the first high-pressure dyeing cabin 2, the second high-pressure dyeing cabin 2 can be loaded and unloaded. After the high-pressure dyeing is completed, the second high-pressure dyeing cabin 2 has completed the loading operation. At this time, the pressure-bearing frame 7 is moved to the position of the second high-pressure dyeing cabin 2, and the second high-pressure dyeing cabin 2 can be pressurized. When the second high-pressure dyeing cabin 2 is undergoing high-pressure dyeing, the first high-pressure dyeing cabin 2 can be unloaded and loaded, and the cycles are alternating in sequence to improve the efficiency of the dyeing operation.

[0054] Reference Figure 1 , Figure 3 Slide rails 11 are fixed on both sides of the support frame 1, and the pressure frame 7 is slidably installed on the slide rails 11; a traction member 12 is fixed at the end of the slide rail 11, and the traction member 12 is used to control the displacement of the pressure frame 7; the pressure frame 7 includes a pressure base 71, a pressure beam 72 fixed on the pressure base 71, and a U-shaped pressure beam 73 fixed on the pressure base 71; a sliding roller 74 cooperating with the slide rails 11 is installed on the pressure base 71; the pressure beam 72 is abutted against the lower cabin body sealing assembly 6; the U-shaped pressure beam 73 is abutted against the upper cabin body sealing assembly 4.

[0055] The traction member 12 controls the horizontal movement of the pressure frame 7. When the pressure frame 7 moves to the position of the high-pressure dyeing cabin 2, the U-shaped pressure beam 73 of the pressure base 71 abuts against the upper cabin body sealing assembly 4, and the pressure beam 72 abuts against the lower cabin body sealing assembly 6. When the ultra-high pressure equipment 3 pressurizes the high-pressure dyeing cabin 2, the displacement of the upper cabin body sealing assembly 4 and the lower cabin body sealing assembly 6 can be reduced, thereby enhancing the sealing performance, slowing down the speed of pressure leakage after pressurization, reducing the pressure decay speed, maintaining the high pressure time longer, and improving the dyeing effect; the pressure beam 72 abuts against the lower cabin body sealing assembly 6, increasing the supporting force for the lower cabin body sealing assembly 6, effectively reducing the deformation of the support frame 1, and effectively reducing the displacement between the lower cabin body sealing assembly 6 and the switch valve assembly 62 and the lower cabin body sealing assembly 6, thereby improving the stability of pressure delivery.

[0056] With the cooperation of the sliding roller 74 and the sliding rail 11 , the resistance to the movement of the pressure frame 7 can be reduced.

[0057] Reference Figure 2 , Figure 4 , Figure 5The high-pressure dyeing chamber 2 includes an inner chamber 21 and an outer chamber 22; the heating assembly 9 is sleeved on the inner chamber 21; the upper chamber plugging assembly 4 includes an upper plug 41 inserted into the upper end of the inner chamber 21 and a rotary lifting base plate 42 abutting against the outer chamber 22; the upper plug 41 is inserted into the upper end of the inner chamber 21 to form a sealing structure with the inner chamber 21, and the rotary lifting base plate 42 abuts against the upper end of the outer chamber 22; the inner chamber 21 is made of metal material, and the outer chamber 22 is made of glass fiber wool material. The heating assembly 9 is a three-stage constant temperature heating device, which heats the inner chamber 21 through the eddy current principle, and the outer chamber 22 is made of glass fiber wool material, which can better keep heat and reduce the temperature decay rate after heating; the heating assembly 9 also includes a temperature control component (thermistor) to maintain a constant temperature;

[0058] Reference Figure 6 , Figure 7 , Figure 8 An exhaust passage 43 is provided on the upper plug body 41, an exhaust chamber 44 is provided at the lower end of the exhaust passage 43, a sealing ball 45 for blocking the exhaust passage 43 is provided in the exhaust chamber 44, an exhaust piston 49 is provided in the exhaust chamber 44, the sealing ball 45 is movably connected with the exhaust piston 49, an exhaust baffle 46 is fixed at the lower side of the exhaust chamber 44, and an exhaust pipe 47 is connected to the side of the exhaust passage 43; the upper side of the exhaust chamber 44 is a conical cavity, and the lower side is a cylindrical cavity; a fine-tuning cylinder 48 is installed on the upper plug body 41; the output end of the fine-tuning cylinder 48 abuts against the upper end of the inner cabin body 21; the exhaust piston 49 is gyro-shaped, an exhaust groove 491 is provided around the exhaust piston 49, a plurality of exhaust holes 492 are provided on the exhaust piston 49, and a spherical groove 493 for placing the sealing ball 45 is provided at the top of the exhaust piston 49;

[0059] When liquid is injected into the high-pressure dyeing chamber 2 for pressurization, the gas in the high-pressure dyeing chamber 2 can be discharged from the exhaust channel 43, and the exhaust piston 49 can move up and down in the exhaust chamber 44. The sealing ball 45 is a silicon nitride ceramic ball, and the sealing ball 45 is embedded in the spherical groove processed by the exhaust piston 49. The upper side of the exhaust chamber 44 is a conical cavity, and the lower side is a cylindrical cavity.

[0060] As water is continuously injected into the high-pressure dyeing cabin 2 to increase pressure, gas is discharged from the exhaust chamber 44 during the process of the liquid rising in the high-pressure dyeing cabin 2, and the liquid level rises and enters the exhaust chamber 44. According to the Bernoulli principle, the flow rate of the pressurized medium below the exhaust piston 49 is much lower than the flow rate of the gap between the upper side of the exhaust piston 49 and the exhaust channel 43. At this time, a pressure difference is generated between the upper and lower sides of the exhaust piston 49, pushing the exhaust piston 49 and the sealing ball 45 to move upward; because the viscosity of the liquid is greater than the viscosity of the gas, the pressure difference generated when the gas passes through the gap quickly is not enough to make the exhaust piston float, but the liquid can drive the exhaust piston 49 to float, and the exhaust channel 43 is blocked; when the exhaust channel 43 is blocked, water is continuously injected into the high-pressure dyeing cabin 2 to increase pressure, so that ultra-high pressure is generated in the high-pressure dyeing cabin 2;

[0061] Reference Figure 8 An adjusting nut 461 is fixed on the exhaust baffle 46, and an adjusting bolt 462 is threadedly mounted on the adjusting nut 461. The adjusting bolt 462 abuts against the exhaust piston 49, and the adjusting bolt 462 is used to adjust the height of the exhaust piston 49 in the exhaust chamber 44;

[0062] By adjusting the nut 461 and the adjusting screw 462, the gap between the exhaust piston 49 and the conical mating surface of the exhaust chamber 44 can be controlled, and the timing of the exhaust piston 49 and the sealing ball 45 blocking the exhaust channel 43 can be controlled;

[0063] The exhaust piston 49 is gyro-shaped, with an exhaust groove 491 disposed around the exhaust piston 49, a plurality of exhaust holes 492 disposed on the exhaust piston 49, and a spherical groove 493 for placing the sealing ball 45 disposed on the top of the exhaust piston 49; the exhaust groove 491 disposed around the exhaust piston 49 and the exhaust holes 492 passing through the exhaust piston 49 facilitate gas circulation;

[0064] Reference Figure 4 , Figure 5 A fine-tuning cylinder 48 is installed on the upper plug body 41; the output end of the fine-tuning cylinder 48 is in contact with the upper end of the inner cabin body 21; the fine-tuning cylinder 48 is used to overcome the technical problem of jamming or getting stuck due to the lifting force point being offset too far from the center of gravity of the upper plug body 41.

[0065] Reference Fig. 9 , Fig.10 , the lower cabin body plugging assembly 6 is installed on the support frame 1; the lower cabin body plugging assembly 6 includes a lower plug body 61 plugging the lower end of the inner cabin body 21 and a switch valve assembly 62 installed on the lower plug body 61; a water injection channel 63 is opened on the lower plug body 61; the switch valve assembly 62 is connected to the ultra-high pressure equipment 3; the switch valve assembly 62 includes a water injection pipe 621 fixed in the water injection channel 63, the water injection pipe 621 is connected to the pipeline 13, and a three-way pipe 622 is arranged between the water injection pipe 621 and the pipeline 13; a hydraulic control valve 623 is installed at one end of the water injection pipe 621 connected to the three-way pipe 622, and a quick pressure relief valve 64 is installed on the three-way pipe 6 22 is used to control the pressure relief; when water is injected into the high-pressure dyeing cabin 2 to increase the pressure, the quick pressure relief valve 64 is closed, the hydraulic control valve 623 is opened, the ultra-high pressure equipment 3 is started, and the pressure in the high-pressure dyeing cabin 2 increases. When the hydraulic pressure reaches the set value, the hydraulic control valve 623 is closed, and the ultra-high pressure equipment 3 is closed for a certain period of time. After the reaction is completed, the quick pressure relief valve 64 and the hydraulic control valve 623 are opened at the same time. At this time, the liquid discharge pressure in the high-pressure dyeing cabin 2 is reduced. When it drops to normal pressure, the hydraulic control valve 623 and the quick pressure relief valve 64 are closed. At this time, the high-pressure dyeing cabin 2 can be opened to take out the dyed material.

[0066] Four plug lifting members 8 (hydraulic cylinders) are fixed on the high-pressure dyeing cabin 2. The plug lifting members 8 are used to separate the lower cabin body sealing assembly 6 from the high-pressure dyeing cabin 2. After separating the lower cabin body sealing assembly 6 from the high-pressure dyeing cabin 2, it is convenient to maintain the high-pressure dyeing cabin 2 and the lower cabin body sealing assembly 6.

[0067] Reference Figure 1 , Figure 4 , Fig.11 , Fig.12 The rotary lifting assembly 5 includes a lifting hydraulic cylinder 51 fixed on the support frame 1, a support sleeve 52 is fixed on the upper end of the lifting hydraulic cylinder 51, a telescopic sleeve rod 53 is slidably installed in the support sleeve 52, the lifting hydraulic cylinder 51 controls the telescopic sleeve rod 53 to move up and down in the support sleeve 52, and the telescopic sleeve rod 53 is rotatably connected to the output end of the lifting hydraulic cylinder 51; a limited track 54 is provided on the support sleeve 52, and a limited roller 55 cooperating with the limited track 54 is fixed on the telescopic sleeve rod 53; the limited track 54 includes a vertical lifting section 541 and a limited flip section 542; the upper plug body 41 is fixed on the top of the telescopic sleeve rod 53, and the rotary lifting base plate 42 is fixed on the top of the support sleeve 52;

[0068] Reference Fig.11 , Fig.12 When the pressurized dyeing is completed, the process of opening the high-pressure dyeing cabin 2 controls the lifting hydraulic cylinder 51 to move, and the limit roller 55 on the telescopic sleeve rod 53 cooperates with the vertical lifting section 541. At this time, the upper plug body 41 moves upward, and at the same time, a pair of fine-tuning cylinders 48 act alternately to prevent jamming or blocking. When the upper plug body 41 is separated from the inner cabin body 21, the lifting hydraulic cylinder 51 continues to extend. At this time, the limit roller 55 on the telescopic sleeve rod 53 cooperates with the limit flip section 542 to rotate the telescopic sleeve rod 53, and the position of the upper plug body 41 is offset, so that the upper end of the high-pressure dyeing cabin 2 is fully opened;

[0069] The distance of the vertical lifting section 541 is greater than the thickness of the upper plug body 41 , and the limit flip section 542 controls the upper plug body 41 to rotate 90 degrees.

[0070] Reference Figure 3, a safety monitoring component 75 is installed on the pressure frame 7; the safety monitoring component 75 includes a deformation rod 751, a deformation locking member 752 fixed on the upper end of the pressure frame 7, a deformation supporting member 753 fixed on the pressure frame 7 and a deformation measuring member 754 fixed on the lower end of the pressure frame 7; the deformation locking member 752 is fixedly connected to the upper end of the deformation rod 751; the deformation supporting member 753 is slidably connected to the deformation rod 751; the deformation measuring member 754 is fixedly connected to the deformation rod 751; the deformation measuring member 754 is used to convert the deformation signal of the pressure frame 7 into an electrical signal to monitor the deformation value; the deformation measuring member 754 includes a deformation measuring seat, a sliding resistor is fixed on the deformation measuring seat, and a sliding terminal is installed at the lower end of the deformation rod 751; the sliding terminal is slidably connected to the deformation measuring seat; the sliding terminal is slidably connected to the sliding resistor;

[0071] When the pressure-bearing frame 7 is subjected to high pressure, it will deform. If the deformation is too large, it is easy to cause danger. When the pressure-bearing frame 7 is subjected to pressure and deforms, it will drive the deformation rod 751 to displace. The displacement data of the deformation rod 751 is converted into an electrical signal by the deformation measuring member 754 for monitoring. When the displacement is too large, the pressure is released in time to prevent danger.

[0072] When the deformation rod 751 is displaced, displacement occurs between the sliding contact terminal and the sliding contact resistor, and the measured resistance value increases, so that the displacement signal can be converted into an electrical signal to measure the displacement.

[0073] Reference Figure 2 , Fig.13The isolation container 10 includes an isolation base 101, on which a plurality of limiting rods 102 are fixed, an isolation top seat 103 is fixed at one end of the limiting rod 102 away from the isolation base 101, and a deformation sleeve 104 is arranged between the isolation base 101 and the isolation top seat 103 (the deformation sleeve 104 is made of rubber or silicone material), and a cheese yarn series member 105 is installed in the deformation sleeve 104; in the process of dyeing the cheese yarn, the dyed cheese yarn is removed from the dyeing tank, strung on the cheese yarn series member 105, and transferred into the isolation container 10, ensuring that the initial dye solution in the isolation container 10 can maintain a constant temperature and fully soak the cheese yarn, and the cheese yarn is placed in the cheese yarn series member 105. The isolation container 10 is placed in the high-pressure dyeing cabin 2 by a crane. The hydraulic pressure in the high-pressure dyeing cabin 2 increases, and the high pressure is applied to the cheese yarn and the dye solution under the action of the deformation sleeve 104. The temperature and pressure are kept at a stable temperature and pressure for a certain period of time (adjusted according to the dye and fiber type). The dye solution is further evenly penetrated into the fiber by physical means under the action of ultra-high pressure, effectively promoting the close combination of dye molecules and fiber molecules; in the dyeing process, there is no need to "add sodium chloride or sodium sulfate to inhibit the accumulation of negative charges on the surface of cotton fibers and promote the adsorption of dyes on the fiber surface and the diffusion into the fiber", which changes the chemical dyeing method in the prior art, thereby realizing salt-free dyeing.

[0074] The cheese yarn series component 105 includes a bottom plate 1051, a series rod 1052 is fixed on the bottom plate 1051, and a limit end platform 1053 is installed at one end of the series rod 1052 away from the bottom plate 1051; the limit end platform 1053 is threadedly connected to the series rod 1052; the limit end platform 1053 is threadedly connected to the isolation top seat 103; a sealing ring 1054 is arranged between the limit end platform 1053 and the isolation top seat 103; a lifting ring 1055 is fixed on the side of the isolation top seat 103 away from the isolation top seat 103;

[0075] The cheese yarn is strung on the serial rod 1052, the limit end platform 1053 is installed on the serial rod 1052, and then the isolation top seat 103 is threadedly connected with the limit end platform 1053. A sealing structure is formed under the action of the sealing ring 1054. When pressure acts on the isolation container 10, it can reduce the leakage of dye solution and the pressurized medium entering the isolation container 10 to contaminate the cheese yarn.

[0076] A lifting ring 1055 is fixed to the side of the isolation top seat 103 away from the isolation top seat 103 ; the isolation container 10 can be conveniently placed into the high-pressure dyeing cabin 2 and taken out from the high-pressure dyeing cabin 2 by cooperating with the lifting device and the lifting ring 1055 .

[0077] Reference Figure 1 , Fig.14 , Fig.15The ultra-high pressure equipment 3 includes an oil tank 31, a pure water tank 32, and a plurality of ultra-high pressure pumps 33. The pure water tank 32 is connected to the water inlet of the ultra-high pressure pump 33, and the water outlet of the ultra-high pressure pump 33 is connected to the pipeline 13;

[0078] The oil tank 31 is used to store hydraulic oil and provide hydraulic oil to the ultra-high pressure pump 33, so that the ultra-high pressure pump 33 generates ultra-high pressure; the oil tank 31 provides hydraulic oil to the ultra-high pressure pump 33, so that the ultra-high pressure pump 33 generates pressure, the pure water tank 32 supplies water to the ultra-high pressure pump 33, the ultra-high pressure pump 33 squeezes the water into the pipeline 13, and transports it to the high-pressure dyeing cabin 2 through the pipeline 13, so that the pressure in the high-pressure dyeing cabin 2 increases.

[0079] Reference Fig.15 The pipeline 13 includes a main water pipe 131 installed at the water outlet end of the ultra-high pressure pump 33, a water distribution piece 132 (three-way pipe fitting) installed on the main water pipe 131, and two water distribution pipes 133 connecting the water distribution piece 132 with the water injection pipe 621. The water distribution pipe 133 transports water to the two high-pressure dyeing cabins 2, and the water distribution pipe 133 is connected to the one-way valve 624; a one-way valve 624 is arranged between the main water pipe 131 and the water distribution piece 132; the one-way valve 624 can reduce the pressure in the high-pressure dyeing cabin 2 to offset the pressure on the side of the ultra-high pressure equipment 3, thereby increasing the pressure increase speed.

[0080] Reference Fig.16 , an ultra-high pressure salt-free dyeing method, comprising the following steps:

[0081] S1, loose cone: wind the yarn into loose cone yarn suitable for dyeing winding density;

[0082] S2, Cage loading: The cheese yarn is loaded into the spindle tray rack by the robot, and then loaded and moved into the dyeing circulation equipment;

[0083] S3. Pretreatment before dyeing: The cheese yarn needs to be pretreated by washing, degreasing, bleaching, etc. to remove impurities on the surface;

[0084] S4, adsorption (dye is adsorbed by the fiber surface): prepare the dye solution according to the formula, inject it into the dyeing circulation equipment, start the dyeing diffusion circulation system, and ensure that the dye solution evenly penetrates into the spindle and is adsorbed by the fiber surface;

[0085] S5, the spindle is transferred out and loaded into the package yarn isolation container 10: the dyed package yarn is transferred out from the dyeing tank and transferred into the package yarn isolation container 10, ensuring that the initial dyeing solution can maintain a constant temperature and fully immerse the package yarn;

[0086] S6, color fixing loading: Move the yarn color fixing transfer cylinder into the high pressure dyeing cabin 2:

[0087] S7, pressurized diffusion fixation: (dye fixation in fiber): start the ultra-high pressure equipment 3, increase the pressure in the high-pressure dyeing chamber 2 to 100-400 MPa according to the process requirements, and maintain a certain period of time (adjusted according to the dye and fiber type) at a stable temperature and pressure. The dye solution further penetrates into the fiber evenly under the action of ultra-high pressure, effectively promoting the close combination of dye molecules and fiber molecules, and completing the combination and fixation of dye in the fiber under salt-free conditions, ensuring that the standard dyeing fastness is achieved, and improving the uniformity, color fastness and work efficiency of dyeing;

[0088] S8, depressurizing and discharging the drum: after dyeing and fixing, the pressure is slowly reduced to normal pressure, and the isolation container 10 is taken out;

[0089] S9, taking out the sarong: taking out the sarong from the transfer barrel;

[0090] S10, floating color washing and dehydration: transfer the bobbin tray from the color fixing transfer cylinder to the high-efficiency dehydration and cleaning equipment for floating color washing;

[0091] S11, drying treatment: drying the washed and dehydrated bobbins;

[0092] S12, rewinding: rewinding the loose bobbin yarn into a tight bobbin yarn suitable for weaving fabrics;

[0093] S13. Packaging: The products are packed by automatic packaging machine before leaving the factory.

[0094] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An ultra-high pressure salt-free dyeing device, characterized in that: The invention comprises a support frame (1), wherein a plurality of high-pressure dyeing cabins (2) are installed on the support frame (1), and an ultra-high pressure device (3) is arranged on the side of the support frame (1), and the ultra-high pressure device (3) is used to generate ultra-high pressure; an upper cabin body plugging assembly (4) is installed on the upper end of the high-pressure dyeing cabin (2), and a rotary lifting assembly (5) is installed on the side of the high-pressure dyeing cabin (2), and the rotary lifting assembly (5) is used to control the lifting and rotation of the upper cabin body plugging assembly (4); a lower cabin body plugging assembly (6) is arranged on the lower end of the high-pressure dyeing cabin (2); a switch valve assembly (62) and a quick pressure relief valve (64) are arranged on the lower cabin body plugging assembly (6); the switch valve assembly (62) is connected to the ultra-high pressure device (3) through a pipeline (13) The support frame (1) is slidably mounted with a pressure-bearing frame (7), the pressure-bearing frame (7) being used to limit the displacement of the upper cabin body plugging assembly (4) and the lower cabin body plugging assembly (6); the high-pressure dyeing cabin (2) is mounted with a heating assembly (9), the heating assembly (9) being used to heat the liquid inside the high-pressure dyeing cabin (2); an isolation container (10) is placed inside the high-pressure dyeing cabin (2); the isolation container (10) is used to contain cheese yarn and dye liquid; the high-pressure dyeing cabin (2) comprises an inner cabin body (21) and an outer cabin body (22); the heating assembly (9) is sleeved inside the outer cabin body (22); the upper cabin body plugging assembly (4) comprises an upper plug body (41) inserted into the upper end of the inner cabin body (21) and a lower cabin body (22) abutting against the outer cabin body (21); 2) on a rotary lifting base plate (42); an exhaust channel (43) is provided on the upper plug body (41); an exhaust chamber (44) is provided at the lower end of the exhaust channel (43); a sealing ball (45) is provided in the exhaust chamber (44) for blocking the exhaust channel (43); an exhaust piston (49) is provided in the exhaust chamber (44); the sealing ball (45) is movably connected to the exhaust piston (49); an exhaust baffle (46) is fixed on the lower side of the exhaust chamber (44); an exhaust pipe (47) is connected to the side of the exhaust channel (43); the upper side of the exhaust chamber (44) is a conical cavity, and the lower side is a cylindrical cavity; the exhaust piston (49) is gyro-shaped, and an exhaust groove (47) is provided around the exhaust piston (49). 91), a plurality of exhaust holes (492) are provided on the exhaust piston (49), and a positioning groove (493) for placing a sealing ball (45) is provided on the top of the exhaust piston (49); an adjusting nut (461) is fixed on the exhaust baffle (46), and an adjusting bolt (462) is threadedly mounted on the adjusting nut (461), and the adjusting bolt (462) is in contact with the exhaust piston (49), and the adjusting bolt (462) is used to adjust the height gap between the exhaust piston (49) and the exhaust chamber (44); a fine-tuning oil cylinder (48) is installed on the upper plug body (41); the output end of the fine-tuning oil cylinder (48) is in contact with the upper end of the inner chamber (21) when the upper plug body (41) rises;The isolation container (10) comprises an isolation base (101), a plurality of limit rods (102) are fixed on the isolation base (101), an isolation top seat (103) is fixed on one end of the limit rod (102) away from the isolation base (101), a deformation sleeve (104) is arranged between the isolation base (101) and the isolation top seat (103), a cheese yarn series component (105) is installed in the deformation sleeve (104); the cheese yarn series component (105) comprises a bottom plate (1051), a plurality of limit rods (102) are fixed on the bottom plate (1051), a plurality of limit rods (102) are fixed on the other end of the limit rods ...), a plurality of limit rods (102) are fixed on the other end of the limit rods (102), a plurality of limit rods (102) are fixed on the other end of the limit rods A series rod (1052) is provided, and a limiting end platform (1053) is installed at one end of the series rod (1052) away from the bottom plate (1051); the limiting end platform (1053) is threadedly connected to the series rod (1052); the limiting end platform (1053) is threadedly connected to the isolation top seat (103); a sealing ring (1054) is provided between the limiting end platform (1053) and the isolation top seat (103); a lifting ring (1055) is fixed to the side of the isolation top seat (103) away from the isolation top seat (103). ; 2. The ultra-high pressure salt-free dyeing device according to claim 1, characterized in that: Slide rails (11) are fixed on both sides of the bottom of the support frame (1), and the pressure-bearing frame (7) is slidably mounted on the slide rails (11); a traction member (12) is fixed at the end of the slide rail (11), and the traction member (12) is used to control the displacement of the pressure-bearing frame (7); the pressure-bearing frame (7) comprises a pressure-bearing base (71), a pressure-bearing crossbeam (72) fixed on the pressure-bearing base (71), and a U-shaped pressure-bearing beam (73) fixed on the pressure-bearing base (71); a sliding roller (74) cooperating with the slide rails (11) is installed on the pressure-bearing base (71); the pressure-bearing crossbeam (72) is in contact with the lower cabin body blocking assembly (6); and the U-shaped pressure-bearing beam (73) is in contact with the upper cabin body blocking assembly (4).

3. The ultra-high pressure salt-free dyeing device according to claim 1, characterized in that: The lower cabin body blocking assembly (6) is mounted on the support frame (1); the lower cabin body blocking assembly (6) comprises a lower plug body (61) blocking the lower end of the inner cabin body (21) and a switch valve assembly (62) mounted on the lower plug body (61); a water injection channel (63) is provided on the lower plug body (61); the switch valve assembly (62) is connected to the ultra-high pressure equipment (3); the switch valve assembly (62) comprises a water injection pipe (621) fixed in the water injection channel (63), the water injection pipe (621) ) is connected to the pipeline (13), and a three-way pipe (622) is provided between the water injection pipe (621) and the pipeline (13); a hydraulic control valve (623) is installed at one end of the water injection pipe (621) connected to the three-way pipe (622), and the quick pressure relief valve (64) is installed on the three-way pipe (622) for controlling pressure relief; a plurality of plug lifting members (8) are fixed on the high-pressure dyeing cabin (2), and the plug lifting members (8) are used to separate the lower cabin body plugging assembly (6) from the high-pressure dyeing cabin (2).

4. The ultra-high pressure salt-free dyeing device according to claim 1, characterized in that: The rotary lifting assembly (5) comprises a lifting hydraulic cylinder (51) fixed on a support frame (1); a support sleeve (52) is fixed on the upper end of the lifting hydraulic cylinder (51); a telescopic sleeve rod (53) is slidably mounted in the support sleeve (52); the lifting hydraulic cylinder (51) controls the telescopic sleeve rod (53) to move up and down in the support sleeve (52); the telescopic sleeve rod (53) is rotatably connected to the output end of the lifting hydraulic cylinder (51); a limit track (54) is provided on the support sleeve (52); a limit roller (55) matched with the limit track (54) is fixed on the telescopic sleeve rod (53); the limit track (54) comprises a vertical lifting section (541) and a limit flip section (542); the upper plug body (41) is fixed on the top of the telescopic sleeve rod (53); and the rotary lifting base plate (42) is fixed on the top of the support sleeve (52).

5. The ultra-high pressure salt-free dyeing device according to claim 1, characterized in that: A safety monitoring component (75) is installed on the pressure-bearing frame (7); the safety monitoring component (75) comprises a deformation rod (751), a deformation locking member (752) fixed to the upper end of the pressure-bearing frame (7), a deformation supporting member (753) fixed to the pressure-bearing frame (7), and a deformation measuring member (754) fixed to the lower end of the pressure-bearing frame (7); the deformation locking member (752) is fixedly connected to the upper end of the deformation rod (751); the deformation supporting member (753) is slidably connected to the deformation rod (751); the deformation measuring member (754) is fixedly connected to the deformation rod (751); the deformation measuring member (754) is used to convert a deformation signal of the pressure-bearing frame (7) into an electrical signal to monitor the deformation value.

6. The ultra-high pressure salt-free dyeing device according to claim 3, characterized in that: The ultra-high pressure equipment (3) comprises an oil tank (31), a pure water tank (32), and a plurality of ultra-high pressure pumps (33); the pure water tank (32) is connected to a water inlet of the ultra-high pressure pump (33), and a water outlet of the ultra-high pressure pump (33) is connected to the pipeline (13); the oil tank (31) is used to store hydraulic oil and to provide hydraulic oil to the ultra-high pressure pump (33), so that the ultra-high pressure pump (33) generates ultra-high pressure.

7. The ultra-high pressure salt-free dyeing device according to claim 6, characterized in that: The pipeline (13) comprises a main water pipe (131) installed at the water outlet end of the ultra-high pressure pump (33), a water distribution piece (132) installed on the main water pipe (131), and a plurality of water distribution pipes (133) connecting the water distribution piece (132) with a water injection pipe (621); the water distribution pipe (133) is connected to the hydraulic control valve (623); and a one-way valve (624) is provided between the main water pipe (131) and the water distribution piece (132).

8. An ultra-high pressure salt-free dyeing method, characterized in that: The ultra-high pressure salt-free dyeing device according to any one of claims 1 to 7 comprises the following steps: S1, loose cone: wind the raw yarn into loose cone yarn suitable for dyeing winding density; S2, Cage loading: The cheese yarn is loaded into the spindle tray rack by the robot, and then loaded and moved into the dyeing circulation equipment; S3. Pretreatment before dyeing: The cheese yarn needs to be washed, degreased and bleached to remove impurities on the surface; S4, adsorption: prepare the dye solution according to the formula, inject it into the dyeing circulation equipment, start the dyeing diffusion circulation system, and the dye solution evenly penetrates into the spindle and is adsorbed by the fiber surface; S5, the spindle is transferred out and loaded into the color fixing transfer cylinder: the dyed yarn is transferred out of the dyeing tank and transferred into the yarn isolation container (10), ensuring that the initial dyeing liquid can maintain a constant temperature and fully immerse the yarn; S6, color fixing loading: Move the yarn color fixing transfer cylinder into the high pressure dyeing chamber (2): S7, pressurized diffusion and color fixation: start the ultra-high pressure equipment (3), increase the pressure in the high-pressure dyeing chamber (2) to 100-400 MPa according to the process requirements, and keep the pressure and temperature constant. The dye solution further penetrates into the fiber evenly under the ultra-high pressure, and completes the combination and color fixation of the dye in the fiber under salt-free conditions; S8, depressurizing and discharging: after dyeing and fixing, the pressure is slowly reduced to normal pressure and the isolation container (10) is taken out; S9, taking out the sarong: taking out the sarong from the transfer barrel; S10, floating color washing and dehydration: transfer the bobbin tray from the color fixing transfer cylinder to the high-efficiency dehydration and cleaning equipment for floating color washing; S11, drying treatment: drying the washed and dehydrated bobbins; S12, rewinding: rewinding the loose bobbin yarn into a tight bobbin yarn suitable for weaving fabrics; S13. Packaging: The products are packed by automatic packaging machine before leaving the factory.

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