Waterless colored spun yarn dyeing equipment and method

Abstract

The invention discloses waterless colored spun yarn dyeing equipment and a waterless colored spun yarn dyeing method, and relates to the technical field of spinning dyeing. The device comprises a cylinder body, a yarn guide mechanism is fixedly arranged on one side of the cylinder body, a yarn drawing mechanism is arranged on the inner side of the cylinder body, a shell is fixedly arranged on one side of the cylinder body, drying mechanisms are fixedly arranged on the two sides of the shell, the yarn guide mechanism comprises a fixing frame, one side of the fixing frame is fixedly connected with the cylinder body, and the other side of the fixing frame is fixedly connected with the cylinder body. Two yarn guide holes are formed in the upper surface of the fixing frame, a connecting frame is fixedly arranged on the lower surface of the fixing frame, and a fixed yarn guide frame is arranged on the lower surface of the connecting frame. The spinning yarn body is driven by the yarn drawing thread to move in the dye pool, uniform dyeing is achieved, or hot air can be generated through the drying mechanism to rapidly dry the dyed yarn, and the dyeing efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of spinning and dyeing, in particular to a waterless color spinning yarn dyeing device and method. Background Art

[0002] The existing technologies for water-free yarn dyeing mainly include supercritical carbon dioxide dyeing technology, which uses carbon dioxide in a supercritical state as a dyeing medium to achieve efficient dyeing with zero wastewater discharge; thermal transfer technology, which transfers dyes from transfer paper to textiles through heat without the need for a water medium, and is suitable for personalized and small-batch production; stock solution / masterbatch dyeing technology, which directly adds masterbatch for coloring during the fiber production process, eliminating the subsequent water dyeing step and reducing water and pollutant emissions; and low-pressure waterless dyeing technology, which achieves dyeing through a non-aqueous medium under low-pressure conditions. The entire process does not require a drop of water, and has a complete color spectrum and good uniformity.

[0003] However, in the existing waterless dyeing technology for spun yarn, the yarn guide link often lacks a flexible adjustment mechanism, and the yarn introduction path is fixed and single, which is difficult to adapt to yarns of different specifications and characteristics, resulting in unstable yarn introduction, easy to cause problems such as entanglement and breakage, affecting the normal progress of the dyeing process; in the drawing process, due to the lack of an effective driving structure, the spinning line moves unevenly in the dye pool, some areas are over-dyed, and some areas are under-dyed, resulting in uneven yarn dyeing color, seriously affecting the appearance quality and quality consistency of the product; in the drying link after dyeing, most methods have slow drying speeds, and the yarn is in a wet state for a long time, which not only prolongs the entire dyeing cycle and reduces dyeing efficiency, but may also cause quality problems such as mildew and dull color of the yarn due to residual moisture, thereby affecting the quality and market competitiveness of the final product.

[0004] In response to the above problems, the inventors proposed a waterless yarn dyeing device and method to solve the above problems. Summary of the Invention

[0005] In order to solve the problems that the yarn guiding link often lacks a flexible adjustment mechanism, the yarn drawing process lacks an effective driving structure, and the drying speed is slow in the drying link after dyeing; the purpose of the present invention is to provide a waterless yarn dyeing device and method.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a waterless yarn dyeing device and method, comprising a cylinder body, a yarn guiding mechanism is fixedly provided on one side of the cylinder body, a yarn drawing mechanism is provided on the inner side of the cylinder body, an outer shell is fixedly provided on one side of the cylinder body, and a drying mechanism is fixedly provided on both sides of the outer shell, the yarn guiding mechanism comprises a fixed frame, one side of the fixed frame is fixedly connected to the cylinder body, two yarn guide holes are provided on the upper surface of the fixed frame, a connecting frame is fixedly provided on the lower surface of the fixed frame, a fixed yarn guide frame is provided on the lower surface of the connecting frame, two adjusting screws are rotatably provided on the lower surface of the two adjusting screws, a movable yarn guide frame is provided on the outer sides of the two adjusting screws, and two yarn guide rings are fixedly provided on one side of the movable yarn guide frame and the fixed yarn guide frame.

[0007] Preferably, the drawing mechanism includes two support frames, which are fixedly connected to the upper surface of the cylinder body. A motor is fixedly provided on the upper surface of the support frame, and a drawing roller is fixedly provided at the output end of the motor. A drawing thread is provided on the outer side of the drawing roller, and a spinning thread is provided on the inner side of the two drawing threads. A dye pool is provided on the inner side of the cylinder body, and the spinning thread is located inside the dye pool.

[0008] Preferably, the drying mechanism includes a mounting plate, one side of the mounting plate is fixedly connected to one side of the outer shell, a ventilation plate is fixedly provided on one side of the mounting plate, a mounting groove is opened on one side of the mounting plate, a fan is provided on the inner side of the mounting groove, a mounting bracket is fixedly provided on one side of the mounting plate, a mounting hole is opened on one side of the mounting bracket, the mounting hole is fixedly connected to the mounting plate, a heating tube is fixedly provided on the inner side of the mounting bracket, a plurality of heating fins are fixedly provided on the outer side of the heating tube, the heating fins are located on one side of the fan, and a yarn drawing guide ring is fixedly provided on one side of the outer shell.

[0009] Preferably, two fixing grooves are provided on one side of the fixing frame, and the fixing grooves are fixedly connected to one side of the cylinder body.

[0010] Preferably, an assembly rack is fixedly provided on the upper surface of the support frame, and the upper surface of the assembly rack is fixedly connected to the motor.

[0011] Preferably, openings are provided on both sides of the cylinder body, and one end of the spinning line body is located inside the opening.

[0012] Preferably, a plurality of ventilation slots distributed at equal intervals are provided on one side of the ventilation plate.

[0013] Preferably, a plurality of mounting screw holes are provided on one side of the mounting plate, and the mounting screw holes are fixedly connected to one side of the housing.

[0014] Preferably, the method for dyeing anhydrous spun yarn comprises the following steps:

[0015] S1: Preparation of dye suspension system

[0016] Raw material ratio: Reactive dye, D5 solvent, and dispersant (oleic acid) are mixed in a mass ratio of 1:10:0.15, and ball milling steel balls (diameters 5 mm and 10 mm) are added. Ball milling is carried out at a speed of 600 r / min for 3 hours to obtain a slurry dye.

[0017] Dilution and setting: dilute the slurry dye with D5 solvent to the required concentration to form a uniform suspension system.

[0018] S2: Yarn pretreatment

[0019] Alkali padding: The yarn is padded with an alkali agent (such as sodium carbonate solution) and the padding rate is controlled at 150% to promote the combination of dye and fiber.

[0020] S3: Staining operation

[0021] Parameter control: bath ratio 1:30, dye dosage 3% (owf), temperature 80-120°C (adjusted according to dye type), time 60-90 minutes.

[0022] Penetration and fixation: The low surface tension of D5 medium helps the dye quickly penetrate the fiber. The active groups form covalent bonds with the fiber, and the fixation rate is much higher than that of traditional water-bath dyeing.

[0023] S4: Post-processing and recycling

[0024] Layered recovery: The dyeing residual liquid is separated into layers through a static separation tower, the upper layer D5 solvent is recovered to the storage tank for recycling, and the lower layer sewage is treated by oil-water separation, nanofiltration (NF) and reverse osmosis (RO) to achieve closed-loop utilization of water resources.

[0025] Solid waste treatment: A small amount of concentrated water is spray-dried to obtain harmless solid waste.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention can flexibly adjust the yarn guide path through the yarn guide mechanism to ensure stable yarn introduction;

[0028] 2. The present invention uses a drawing mechanism to drive the spinning thread to move in the dye pool to achieve uniform dyeing;

[0029] 3. The present invention can generate hot air through the drying mechanism to quickly dry the dyed yarn, thereby improving dyeing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 It is a schematic diagram of the structure of each mechanism of the present invention.

[0033] Figure 3 It is a structural schematic diagram of the drawing mechanism of the present invention.

[0034] Figure 4 It is an exploded view of the drawing mechanism structure of the present invention.

[0035] Figure 5 It is a structural schematic diagram of the drawing mechanism of the present invention.

[0036] Figure 6 It is a schematic cross-sectional view of the drawing mechanism structure of the present invention.

[0037] Figure 7 It is a schematic cross-sectional view of the drying mechanism structure of the present invention.

[0038] Figure 8 It is a partial structural diagram of the drying mechanism of the present invention.

[0039] In the figure: 1. Cylinder; 2. Yarn guiding mechanism; 3. Yarn drawing mechanism; 4. Drying mechanism; 5. Housing; 20. Fixed frame; 21. Fixed slot; 22. Fixed yarn guide frame; 23. Adjusting screw; 24. Movable yarn guide frame; 25. Yarn guide ring; 26. Yarn guide hole; 27. Connecting frame; 30. Support frame; 31. Assembly frame; 32. Yarn drawing thread; 33. Yarn drawing roller; 34. Spinning line body; 35. Dye tank; 36. Opening; 37. Motor; 40. Mounting plate; 41. Ventilation plate; 42. Ventilation slot; 43. Mounting slot; 44. Heating tube; 45. Mounting hole; 46. Mounting frame; 47. Fan; 49. Heating fin; 401. Mounting screw hole; 402. Yarn drawing guide ring. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1: Figure 1-4 As shown, the present invention provides a waterless yarn dyeing device and method, including a cylinder body 1, a yarn guiding mechanism 2 is fixedly provided on one side of the cylinder body 1, a yarn drawing mechanism 3 is provided on the inner side of the cylinder body 1, a shell 5 is fixedly provided on one side of the cylinder body 1, and a drying mechanism 4 is fixedly provided on both sides of the shell 5, the yarn guiding mechanism 2 includes a fixed frame 20, one side of the fixed frame 20 is fixedly connected to the cylinder body 1, two yarn guide holes 26 are provided on the upper surface of the fixed frame 20, a connecting frame 27 is fixedly provided on the lower surface of the fixed frame 20, a fixed yarn guide frame 22 is provided on the lower surface of the connecting frame 27, two adjusting screws 23 are rotatably provided on the lower surface of the fixed yarn guide frame 22, and a movable yarn guide frame 24 is provided on the outer sides of the two adjusting screws 23, and two yarn guide rings 25 are fixed on one side of the movable yarn guide frame 24 and the fixed yarn guide frame 22.

[0042] By adopting the above technical solution, when the dyeing operation is carried out, the yarn is introduced into the equipment from the outside and will first enter the yarn guide ring 25 on one side of the fixed yarn guide frame 22. The yarn guide ring 25 provides a preliminary guiding function for the yarn, so that the yarn can move forward steadily along the preset path to avoid deviation or entanglement. Afterwards, the yarn passes through the yarn guide ring 25 and enters the two yarn guide holes 26 opened on the upper surface of the fixed frame 20. The yarn guide holes 26 further position and constrain the yarn to ensure that the yarn can enter the cylinder 1 in a precise direction and position, making full preparations for the subsequent dyeing process in the yarn drawing mechanism 3. In addition, if it is necessary to adjust the yarn guide path according to the specifications, characteristics or dyeing process requirements of the yarn, the operator can rotate the two adjustment screws 23 on the lower surface of the fixed yarn guide frame 22. Since the adjusting screw 23 is threadedly sleeved with the movable yarn guide frame 24, rotating the adjusting screw 23 will cause the movable yarn guide frame 24 to move along its axial direction, thereby changing the distance between the movable yarn guide frame 24 and the fixed yarn guide frame 22, adjusting the path of the yarn passing through the yarn guide ring 25, and realizing flexible adjustment of the yarn guide path.

[0043] Two fixing grooves 21 are defined on one side of the fixing frame 20 , and the fixing grooves 21 are fixedly connected to one side of the cylinder body 1 .

[0044] By adopting the above technical solution, the two fixing grooves 21 opened on one side of the fixing frame 20 are fixedly connected to one side of the cylinder body 1. This design increases the contact area and connection stability between the fixing frame 20 and the cylinder body 1, making the yarn guiding mechanism 2 more stable and less likely to shake during operation, thereby ensuring the accuracy and stability of the yarn guiding and reducing problems such as yarn entanglement and breakage caused by the shaking of the mechanism.

[0045] Working principle: When the dyeing operation is carried out, the yarn is introduced into the equipment from the outside and will first enter the yarn guide ring 25 on one side of the fixed yarn guide frame 22. The yarn guide ring 25 provides a preliminary guide for the yarn, so that the yarn can move forward steadily along the preset path to avoid deviation or entanglement. Afterwards, the yarn passes through the yarn guide ring 25 and enters the two yarn guide holes 26 opened on the upper surface of the fixed frame 20. The yarn guide holes 26 further position and constrain the yarn to ensure that the yarn can enter the cylinder 1 in a precise direction and position, and fully prepare for the subsequent dyeing process in the drawing mechanism 3. In addition, if it is necessary to adjust the yarn guide path according to the specifications, characteristics or dyeing process requirements of the yarn, the operator can turn the two adjustment screws 23 on the lower surface of the fixed yarn guide frame 22. Since the adjusting screw 23 is threadedly sleeved with the movable yarn guide frame 24, rotating the adjusting screw 23 will cause the movable yarn guide frame 24 to move along its axial direction, thereby changing the distance between the movable yarn guide frame 24 and the fixed yarn guide frame 22, adjusting the path of the yarn passing through the yarn guide ring 25, and realizing flexible adjustment of the yarn guide path.

[0046] Example 2: Figure 5-6 As shown, the drawing mechanism 3 includes two support frames 30, which are fixedly connected to the upper surface of the cylinder 1. A motor 37 is fixedly provided on the upper surface of the support frame 30, and a drawing roller 33 is fixedly provided at the output end of the motor 37. A drawing thread 32 is provided on the outer side of the drawing roller 33, and a spinning thread 34 is provided on the inner side of the two drawing threads 32. A dye pool 35 is provided on the inner side of the cylinder 1, and the spinning thread 34 is located inside the dye pool 35.

[0047] By adopting the above technical solution, the spinning yarn 34, after being guided by the yarn guide mechanism 2, enters the dye pool 35 inside the cylinder 1 through openings 36 on either side of the cylinder 1. The size and position of the openings 36 are carefully designed to ensure smooth passage of the spinning yarn 34 while preventing dye leakage. A motor 37, fixed to the assembly frame 31 on the upper surface of the support frame 30, is activated, and the output end of the motor 37 drives the drawing roller 33 to rotate. Drawing threads 32 are formed on the outer side of the drawing roller 33, and the two drawing threads 32 act together on the spinning yarn 34. As the drawing roller 33 rotates, the drawing threads 32 act like a screw conveyor, moving the spinning yarn 34 through the dye pool 35. During this movement, the spinning yarn 34 comes into full contact with the dye, allowing the dye to evenly adhere to the surface and interior of the yarn, thereby achieving a uniform dyeing effect. By controlling the speed and rotation time of the motor 37, the movement speed of the spinning yarn 34 in the dye pool 35 and the dyeing time can be adjusted to meet the requirements of different dyeing processes.

[0048] An assembly frame 31 is fixedly provided on the upper surface of the support frame 30 , and the upper surface of the assembly frame 31 is fixedly connected to the motor 37 .

[0049] By adopting the above technical solution, the assembly frame 31 fixed on the upper surface of the support frame 30 provides a stable installation platform for the motor 37, so that the motor 37 can remain stable during operation, reducing the vibration and noise of the motor 37 and extending the service life of the motor 37. At the same time, the stable installation also ensures that the power at the output end of the motor 37 can be stably transmitted to the drawing roller 33, ensuring the normal operation of the drawing mechanism 3.

[0050] Openings 36 are formed on both sides of the cylinder 1 , and one end of the spinning thread body 34 is located inside the opening 36 .

[0051] By adopting the above-mentioned technical solution, the openings 36 opened on both sides of the cylinder body 1 provide a channel for the spinning thread 34 to enter the dye pool 35 inside the cylinder body 1, so that the spinning thread 34 can smoothly enter the dye pool 35 for dyeing. At the same time, the size and position of the opening 36 are reasonably designed, which can ensure that the spinning thread 34 will not be subjected to excessive friction during movement, avoid damage to the yarn, and improve the dyeing quality and efficiency.

[0052] Working Principle: After being guided by the yarn guide mechanism 2, one end of the spinning yarn 34 enters the dye pool 35 inside the cylinder 1 through openings 36 on either side of the cylinder 1. The size and position of the openings 36 are carefully designed to ensure smooth passage of the spinning yarn 34 while preventing dye leakage. A motor 37, fixed to the assembly frame 31 on the upper surface of the support frame 30, is activated, and the output end of the motor 37 rotates the drawing roller 33. Drawing threads 32 are formed on the outer side of the drawing roller 33, and the two drawing threads 32 act together on the spinning yarn 34. As the drawing roller 33 rotates, the drawing threads 32 act like a screw conveyor, moving the spinning yarn 34 through the dye pool 35. During this movement, the spinning yarn 34 comes into full contact with the dye, allowing the dye to evenly adhere to the surface and interior of the yarn, resulting in a uniform dyeing effect. By controlling the speed and rotation time of the motor 37, the movement speed of the spinning yarn 34 in the dye pool 35 and the dyeing time can be adjusted to meet the requirements of different dyeing processes.

[0053] Example 3: Figure 7-8 As shown, the drying mechanism 4 includes a mounting plate 40, one side of which is fixedly connected to one side of the outer shell 5, a ventilation plate 41 is fixedly provided on one side of the mounting plate 40, a mounting groove 43 is opened on one side of the mounting plate 40, a fan 47 is provided on the inner side of the mounting groove 43, a mounting bracket 46 is fixedly provided on one side of the mounting plate 40, a mounting hole 45 is opened on one side of the mounting bracket 46, the mounting hole 45 is fixedly connected to the mounting plate 40, a heating tube 44 is fixedly provided on the inner side of the mounting bracket 46, a plurality of heating fins 49 are fixedly provided on the outer side of the heating tube 44, and the heating fins 49 are located on one side of the fan 47, and a yarn drawing guide ring 402 is fixedly provided on one side of the outer shell 5.

[0054] By adopting the above technical solution, when the dyed spinning yarn 34 needs to be dried, the fan 47 in the mounting slot 43 on one side of the mounting plate 40 is started. The fan 47 draws in the surrounding air and blows it out at an accelerated speed, forming an airflow. The airflow blows toward the heating tube 44 on the inside of the mounting frame 46. When the heating tube 44 is powered on, it generates heat. The multiple heating fins 49 fixed on the outside of the heating tube 44 can increase the heat exchange area, allowing the air to absorb heat more quickly and fully, thereby converting the air into hot air. The generated hot air is evenly blown out through the ventilation slots 42 distributed at equal intervals on the ventilation plate 41. The dyed spinning yarn 34 enters the drying area through the yarn drawing guide ring 402 on one side of the housing 5. The hot air blows directly onto the spinning yarn 34, causing the moisture on the yarn surface to evaporate quickly. Due to the even distribution of the ventilation slots 42, the hot air can evenly cover all parts of the spinning yarn 34, avoiding the problems of local overheating or uneven drying, and ensuring the drying quality of the spinning yarn 34.

[0055] By adopting the above-mentioned technical solution, a plurality of ventilation slots 42 distributed at equal intervals on one side of the ventilation plate 41 can allow the hot air blown out by the fan 47 to pass through the ventilation plate 41 evenly, avoiding the hot air from being concentrated in one area, ensuring that all parts of the spinning thread 34 can be evenly dried by the hot air, improving the drying effect, and making the dyed spinning thread 34 more uniform in color and of better quality.

[0056] A plurality of mounting screw holes 401 are defined on one side of the mounting plate 40 , and the mounting screw holes 401 are fixedly connected to one side of the housing 5 .

[0057] By adopting the above technical solution, multiple mounting screw holes 401 on one side of the mounting plate 40 are fixedly connected to one side of the housing 5. This connection method makes the connection between the drying mechanism 4 and the housing 5 more secure and reliable, facilitating the installation and removal of the drying mechanism 4 and facilitating maintenance and repair of the equipment. Furthermore, the design of multiple mounting screw holes 401 also increases the stability of the connection, reduces the shaking of the drying mechanism 4 during operation, and ensures a smooth drying process.

[0058] Working principle: When the dyed spinning yarn 34 needs to be dried, the fan 47 in the mounting slot 43 on one side of the mounting plate 40 is started. The fan 47 draws in the surrounding air and blows it out at an accelerated speed, forming an airflow. The airflow blows toward the heating tube 44 on the inside of the mounting frame 46. When the heating tube 44 is powered on, it generates heat. The multiple heating fins 49 fixed on the outside of the heating tube 44 can increase the heat exchange area, allowing the air to absorb heat more quickly and fully, thereby turning the air into hot air. The generated hot air is evenly blown out through the ventilation slots 42 evenly spaced on the ventilation plate 41. The dyed spinning yarn 34 enters the drying area through the yarn drawing guide ring 402 on one side of the outer shell 5. The hot air blows directly toward the spinning yarn 34, causing the moisture on the surface of the yarn to evaporate quickly. Due to the even distribution of the ventilation slots 42, the hot air can evenly cover all parts of the spinning yarn 34, avoiding the problems of local overheating or uneven drying, and ensuring the drying quality of the spinning yarn 34.

[0059] The method for dyeing water-free spun yarn comprises the following steps:

[0060] S1: Preparation of dye suspension system

[0061] Raw material ratio: Reactive dye, D5 solvent, and dispersant (oleic acid) are mixed in a mass ratio of 1:10:0.15, and ball milling steel balls (diameters 5 mm and 10 mm) are added. Ball milling is carried out at a speed of 600 r / min for 3 hours to obtain a slurry dye.

[0062] Dilution and setting: dilute the slurry dye with D5 solvent to the required concentration to form a uniform suspension system.

[0063] S2: Yarn pretreatment

[0064] Alkali padding: The yarn is padded with an alkali agent (such as sodium carbonate solution) and the padding rate is controlled at 150% to promote the combination of dye and fiber.

[0065] S3: Staining operation

[0066] Parameter control: bath ratio 1:30, dye dosage 3% (owf), temperature 80-120°C (adjusted according to dye type), time 60-90 minutes.

[0067] Penetration and fixation: The low surface tension of D5 medium helps the dye quickly penetrate the fiber. The active groups form covalent bonds with the fiber, and the fixation rate is much higher than that of traditional water-bath dyeing.

[0068] S4: Post-processing and recycling

[0069] Layered recovery: The dyeing residual liquid is separated into layers through a static separation tower, the upper layer D5 solvent is recovered to the storage tank for recycling, and the lower layer sewage is treated by oil-water separation, nanofiltration (NF) and reverse osmosis (RO) to achieve closed-loop utilization of water resources.

[0070] Solid waste treatment: A small amount of concentrated water is spray-dried to obtain harmless solid waste.

[0071] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A waterless yarn dyeing device, comprising a cylinder (1), characterized in that: A yarn guide mechanism (2) is fixedly provided on one side of the cylinder body (1), a yarn drawing mechanism (3) is provided on the inner side of the cylinder body (1), an outer shell (5) is fixedly provided on one side of the cylinder body (1), and drying mechanisms (4) are fixedly provided on both sides of the outer shell (5).

2. The waterless yarn dyeing equipment according to claim 1, characterized in that: The yarn guide mechanism (2) comprises a fixed frame (20), one side of the fixed frame (20) is fixedly connected to the cylinder body (1), two yarn guide holes (26) are provided on the upper surface of the fixed frame (20), a connecting frame (27) is fixedly provided on the lower surface of the fixed frame (20), a fixed yarn guide frame (22) is provided on the lower surface of the connecting frame (27), two adjusting screws (23) are rotatably provided on the lower surface of the fixed yarn guide frame (22), a movable yarn guide frame (24) is provided on the outer sides of the two adjusting screws (23), and two yarn guide rings (25) are fixedly provided on one side of each of the movable yarn guide frame (24) and the fixed yarn guide frame (22).

3. The waterless yarn dyeing equipment according to claim 1, characterized in that: The drawing mechanism (3) comprises two support frames (30), the support frames (30) are fixedly connected to the upper surface of the cylinder (1), a motor (37) is fixedly provided on the upper surface of the support frame (30), a drawing roller (33) is fixedly provided at the output end of the motor (37), a drawing thread (32) is provided on the outer side of the drawing roller (33), a spinning thread (34) is provided on the inner side of the two drawing threads (32), a dye pool (35) is provided on the inner side of the cylinder (1), and the spinning thread (34) is located inside the dye pool (35).

4. The waterless yarn dyeing equipment according to claim 1, characterized in that: The drying mechanism (4) includes a mounting plate (40), one side of the mounting plate (40) is fixedly connected to one side of the housing (5), a ventilation plate (41) is fixedly provided on one side of the mounting plate (40), a mounting groove (43) is provided on one side of the mounting plate (40), a fan (47) is provided on the inner side of the mounting groove (43), a mounting frame (46) is fixedly provided on one side of the mounting plate (40), a mounting hole (45) is provided on one side of the mounting frame (46), the mounting hole (45) is fixedly connected to the mounting plate (40), a heating tube (44) is fixedly provided on the inner side of the mounting frame (46), a plurality of heating fins (49) are fixedly provided on the outer side of the heating tube (44), and the heating fins (49) are located on one side of the fan (47), and a yarn drawing guide ring (402) is fixedly provided on one side of the housing (5).

5. The waterless yarn dyeing equipment according to claim 2, characterized in that: Two fixing grooves (21) are provided on one side of the fixing frame (20), and the fixing grooves (21) are fixedly connected to one side of the cylinder body (1).

6. The waterless yarn dyeing equipment according to claim 3, characterized in that: An assembly frame (31) is fixedly provided on the upper surface of the support frame (30), and the upper surface of the assembly frame (31) is fixedly connected to the motor (37).

7. The waterless yarn dyeing equipment according to claim 1, characterized in that: Both sides of the cylinder (1) are provided with openings (36), and one end of the spinning thread body (34) is located inside the opening (36).

8. The waterless yarn dyeing equipment according to claim 4, characterized in that: A plurality of ventilation slots (42) distributed at equal intervals are provided on one side of the ventilation plate (41).

9. The waterless yarn dyeing equipment according to claim 4, characterized in that: A plurality of mounting screw holes (401) are provided on one side of the mounting plate (40), and the mounting screw holes (401) are fixedly connected to one side of the housing (5).

10. The method for dyeing water-free spun yarn according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Preparation of dye suspension system Raw material ratio: Reactive dye, D5 solvent, and dispersant (oleic acid) are mixed in a mass ratio of 1:10:0.15, and ball milling steel balls (diameters 5 mm and 10 mm) are added. Ball milling is carried out at a speed of 600 r / min for 3 hours to obtain a slurry dye. Dilution and setting: dilute the slurry dye with D5 solvent to the required concentration to form a uniform suspension system. S2: Yarn pretreatment Alkali padding: The yarn is padded with an alkali agent (such as sodium carbonate solution) and the padding rate is controlled at 150% to promote the combination of dye and fiber. S3: Staining operation Parameter control: bath ratio 1:30, dye dosage 3% (owf), temperature 80-120°C (adjusted according to dye type), time 60-90 minutes. Penetration and fixation: The low surface tension of D5 medium helps the dye quickly penetrate the fiber. The active groups form covalent bonds with the fiber, and the fixation rate is much higher than that of traditional water-bath dyeing. S4: Post-processing and recycling Layered recovery: The dyeing residual liquid is separated into layers through a static separation tower, the upper layer D5 solvent is recovered to the storage tank for recycling, and the lower layer sewage is treated by oil-water separation, nanofiltration (NF) and reverse osmosis (RO) to achieve closed-loop utilization of water resources. Solid waste treatment: A small amount of concentrated water is spray-dried to obtain harmless solid waste.

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