Yarn zero-color-difference star-cage dyeing device and dyeing process using the same

Abstract

The present invention belongs to the technical field of textile dyeing, and specifically relates to a yarn zero-color-difference star-cage dyeing device and a dyeing process using the same. It comprises a dyeing machine main cylinder, a detachable star-cage dyer inside the dyeing machine main cylinder, the star-cage dyer comprising a star cage, a star cage yarn bundle holder at the bottom of the star cage, a star tube vertically arranged inside the star cage, the star tube passing through the star cage yarn bundle holder and correspondingly connected to the upper end of a circulation pipeline below the dyeing machine main cylinder, a yarn bundle grate arranged inside the star cage, the yarn bundle grate passing through the star tube and arranged on the star cage yarn bundle holder, a center rod provided at the top of the star tube, a compression sealing device connected to the center rod; the circulation pipeline is connected to a heater, a circulation pump, and a motor, and the dyeing machine main cylinder is connected to the circulation pump via a liquid outlet pipe. The present invention breaks the conventional thinking of cheese yarn dyeing in the industry, adopts yarn bundle dyeing without a bobbin, ensures sufficient color brightness and depth, and achieves the effect of zero color difference in the yarn, is simple to operate, has high dyeing efficiency, and a high first-pass dyeing rate.

Description

Technical Field

[0001] The invention belongs to the technical field of textile dyeing, and in particular relates to a yarn zero-color difference star cage dyeing device and a dyeing process using the same. Background Art

[0002] Yarn-dyed fabrics are comfortable to wear, boasting advantages such as moisture absorption, moisture retention, heat and alkali resistance, hygiene, and aesthetic appeal, making them the preferred fabric for formal wear. Yarn-dyed fabrics are produced by first cheese-dying the yarn, then passing it through a loom, where the warp and weft yarns interweave in a crisscross pattern. These textiles are rich in color and feature a variety of patterns.

[0003] Traditional cheese dyeing involves winding the yarn onto a resin bobbin and then individually mounting the bobbins on a creel (a vertical tube with holes) for dyeing. This traditional cheese dyeing process has always been plagued by color differences between the outer and middle layers, and between the outer and inner layers, of the dyed cheese. This severely impacts the quality of the yarn dyeing, and further affects the quality of yarn-dyed fabrics. Furthermore, cheese dyeing places particularly high demands on the resin bobbins. To prevent staining, resin bobbins of different colors cannot be mixed, resulting in high resin bobbin consumption and high costs, a persistent problem for the textile industry.

[0004] In the prior art, loose-wound bobbins are stacked one by one on vertical perforated tubes, typically with several tubes in a single pot. The working liquid or dye solution is then ejected in several streams from different tubes, often resulting in uneven working liquid or dye solution distribution. The colors of the bobbins on different vertical perforated tubes may vary to varying degrees. Furthermore, there are gaps between adjacent bobbins, as winding the yarn onto the resin bobbins doesn't allow for full coverage of the resin bobbins near the edges. These gaps between adjacent bobbins result in dye solution flow loss, meaning that the dye solution or working liquid does not fully contact the yarn after one cycle and flows out into the next cycle, wasting resources and energy while reducing production efficiency.

[0005] Patent CN102277698A discloses a new process for dyeing polyester air-textured yarn. This invention relates to the field of textile printing and dyeing technology and provides a method for fully penetrating the dye liquor into the inner and outer layers of the cheese yarn during dyeing. Specifically, the cheese yarn is first subjected to two loose winding and steaming processes before dyeing. This physically ensures the elasticity of the polyester air-textured yarn and reduces the color difference between the inner and outer layers of the dyed cheese yarn. The process includes a loose winding process, a steaming and setting process, a loose winding process, a dyeing process, a finishing process, and a dehydration and drying process. This patent reduces the color difference between the inner and outer layers of the dyed yarn caused by shrinkage during dyeing by pre-steaming the polyester. While this method can reduce the color difference between the inner and outer layers of the dyed yarn compared to traditional cheese yarn dyeing methods, it still uses a cheese yarn dyeing method. The presence of a resin cheese can never completely solve the problem of color difference between the inner and outer layers of the dyed yarn and increases costs.

[0006] Patent CN108611881A discloses a method for preparing white-dyed cellulose fiber fabrics. This patent describes a dyeing process for modified and unmodified cellulose fibers, which is simple and easy to operate. However, this process is specific to fabrics, and the reducing agent used in this process can remove some of the color, affecting color stability. It is not suitable for yarn-dyed weaving processes, where yarn is dyed before weaving.

[0007] Patent CN107964812A discloses a modified cellulose fiber dyeing process, which uses a tea saponin pretreatment scouring process. This process can reduce energy consumption, but the tea saponin scouring effect is relatively soft, and some impurities will remain, which will reduce the color vividness.

[0008] Patent CN104358161A discloses a salt-free, low-alkali modified dyeing process for cellulose fibers. This patent describes a salt-free, low-alkali modified dyeing process for cellulose fibers, focusing on the impact of the cellulose fiber modification process on dyeing. The salt-free, low-alkali dyeing process employed can reduce the salt and alkali content in dyeing wastewater, thereby reducing the treatment pressure for dyeing wastewater. However, this method lacks pre-dyeing treatment, making it unsuitable for dyeing partially modified yarns, reducing color depth and vividness, and unsuitable for achieving the color-free requirements of cheese dyeing.

[0009] Patent CN108660653A discloses a yarn processing and dyeing device, comprising a base, wherein a drying barrel and a dyeing barrel are symmetrically arranged at the upper end of the base, and the drying barrel and the dyeing barrel are respectively provided with a drying chamber and a dyeing chamber opening upward. The side walls of the drying barrel are provided with a heating plate, and the heating plate is provided with a heating chamber. This invention realizes the process of yarn dyeing and drying by simultaneously performing dyeing and drying during the yarn processing process, so that the dyed yarn raw material can be dried subsequently, thereby streamlining the yarn dyeing and drying process, reducing processing time and improving work efficiency. The transmission device drives the insertion rod on the crossbar to rotate, thereby rotating the sleeve with yarn wrapped around the insertion rod in the drying chamber and the dyeing chamber. The hot air is blown to all sides of the yarn in the drying chamber, accelerating drying, reducing drying time, and improving work efficiency. The sleeve in the dyeing chamber rotates in the dye, making it more fully dyed, improving the dyeing effect, and improving dyeing efficiency. However, this device still cannot get rid of the use of the sleeve, and even the improvement of its dyeing effect by rotating the heating lamp is still very limited. Summary of the Invention

[0010] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a yarn zero color difference star cage dyeing device, which breaks the current situation of cheese yarn dyeing production equipment, realizes bobbin-free and tension-free yarn bundle dyeing, and achieves zero color difference yarn dyeing effect through dye liquid circulation.

[0011] The present invention also provides a dyeing process using the same, which overcomes the defect of color difference in cheese dyeing, can ensure sufficient color brightness and depth, and achieve the effect of yarn without color difference, has simple production operation and high dyeing efficiency.

[0012] Pre-treatment involves placing tension-free yarn bundles in a star cage and subjecting them to a gentle bleaching process, which removes impurities without altering the yarn's basic condition. The working fluid is then ejected from the star tube via a circulating pump, passing through the fibers and the overflow holes of the star cage, and then returning to the tube to form a dye solution cycle for pre-treatment and dyeing. This significantly enhances the color vividness of the dyed yarn, resolving the industry challenge of color variation in packaged yarn.

[0013] The yarn zero color difference star cage dyeing device described in the present invention includes a dyeing machine main cylinder, and a star cage dyer is detachably provided inside the dyeing machine main cylinder. The star cage dyer includes a star cage cover, and the bottom of the star cage cover is a star cage yarn bundle frame. A star tube is vertically provided inside the star cage cover, and the star tube passes through the star cage yarn bundle frame and is correspondingly connected to the upper end of the circulation pipeline under the dyeing machine main cylinder. A detachable yarn bundle grate is provided inside the star cage cover, and the yarn bundle grate passes through the star tube and is provided on the star cage yarn bundle frame. A center rod is provided on the top of the star tube, and a compression sealing device is threadedly connected to the center rod, and a lifting nut is threadedly connected to the compression sealing device and the center rod; the circulation pipeline is connected to the heater, the circulation pump, and the motor, and the dyeing machine main cylinder is connected to the circulation pump through the liquid outlet pipe; a number of overflow holes are provided on the star cage cover and the star tube.

[0014] The yarn bundle grate is provided with a lifting ring.

[0015] The zero-color-difference star cage dyeing device for yarn further includes a cross suspension chain. The cross suspension chain includes a cross bar. A number of diameter adjustment rings are provided below the cross bar. A ring-shaped lifting structure is provided at the center position of the cross bar. It further includes a suspension chain. Disassembly buckles are provided at both ends of the suspension chain.

[0016] It is possible to select to buckle the suspension chain on the diameter adjustment rings at different positions according to the diameter specification of the yarn bundle grate, so as to adapt to yarn bundle grates of various specifications.

[0017] The pressing and sealing device includes a yarn bundle pressing cover, a blind tube, a cap cover, and a locking nut in sequence from bottom to top;

[0018] A sealing gasket is provided between the star cage yarn bundle seat and the yarn bundle grate. The sealing gasket forms a seal with the yarn bundle grate to prevent loss of the flow rate of the dyeing solution. The circulating pipeline is connected to the drain pipe. A valve is provided on the drain pipe. When it is necessary to discharge the working fluid or the dyeing solution, the valve is automatically controlled to discharge.

[0019] The dyeing process using the zero-color-difference star cage dyeing device for yarn according to the present invention includes the following process steps:

[0020] 1) Loose winding: The yarn is evenly wound into a non-tension yarn bundle through the integral chuck bobbin of a loose winding machine;

[0021] 2) Yarn bundle loading: Use a lifting device to horizontally lift the yarn bundle grate. Further, the lifting device suspends the ring-shaped lifting structure of the cross suspension chain, and the disassembly buckle below the suspension chain hooks the lifting ring of the yarn bundle grate to horizontally lift the yarn bundle grate. The non-tension yarn bundle wrapped with a sock tube is placed layer by layer around the center in a circular shape on the yarn bundle grate. The placement method of the non-tension yarn bundle is staggered both in the horizontal direction and the vertical direction, that is, in a "pin" shape;

[0022] 3) Assembly of the zero-color-difference star cage dyeing device for yarn: Pass the sealing gasket through the star tube and press it onto the star cage yarn bundle seat. Then pass the loaded yarn bundle grate through the star tube and place it on the sealing gasket. Pass the yarn bundle pressing cover through the star tube and press it on the placed non-tension yarn bundle. Then select the length of the blind tube according to the loading height of the non-tension yarn bundle and press it on the yarn bundle pressing cover. Sequentially fix the cap cover, the locking nut, and the lifting nut to the center rod through threads. The lifting device hooks the lifting nut to place the assembled device into the main cylinder of the dyeing machine. The star cage yarn bundle seat is closely fitted with the circulating pipeline at the bottom of the main cylinder of the dyeing machine, without flow rate loss;

[0023] 4) Pretreatment + dyeing process or pretreatment whitening one-bath process:

[0024] Pretreatment + dyeing process: The working liquid circulation method is used for treatment: the circulation pump is started, and the scouring and bleaching working liquid is injected into the star tube through the circulation pipeline. The working liquid then fully contacts the tension-free yarn bundle placed in the star cage from the inside out through the overflow hole on the star tube. The working liquid then overflows into the main cylinder of the dyeing machine through the overflow hole on the star cage. The working liquid is injected into the star tube again through the liquid outlet pipe via the circulation pump, and the treatment is repeated. After the pretreatment scouring and bleaching process is completed, the working liquid is drained through the liquid discharge pipe, and water, dyes, and auxiliaries are added to obtain the dye liquor. The dye liquor is also ejected from the star tube from the inside out using the circulation pump. The dye liquor overflows from the star cage through the tension-free yarn bundle to the main cylinder of the dyeing machine and then circulates repeatedly.

[0025] Pre-treatment whitening one-bath process: adopt working liquid circulation method for treatment: start the circulation pump, pump the scouring, bleaching and whitening working liquid into the star tube through the circulation pipeline, and then fully contact the tension-free yarn bundle placed in the star cage from the inside out through the overflow hole on the star tube. Then overflow into the main cylinder of the dyeing machine through the overflow hole on the star cage, and then pump into the star tube again through the liquid outlet pipe via the circulation pump. The cycle is repeated. After the treatment is completed, the scouring, bleaching and whitening working liquid are discharged through the drain pipe.

[0026] 5) Post-treatment: Washing → (soaping → fixing) → softening, using a working liquid circulation method; whitening and light color dyeing processes do not require soaping and fixing steps;

[0027] 6) Dehydration and drying: The tension-free yarn bundle is dehydrated by a centrifugal dehydrator and then dried;

[0028] 7) Tight winding: After being dried, the tension-free yarn bundle is evenly supported by the telescopic yarn support frame and then installed on the active unwinding bobbin shaft of the active unwinding automatic winder for tight winding.

[0029] The tension-free yarn bundles described in step 1) weigh 0.5-2 kg each.

[0030] In the pretreatment + dyeing process described in step 4), the scouring and bleaching working solution is 2-4 g / L of refining agent, 2-4 g / L of caustic soda, and 4-8 g / L of hydrogen peroxide, the pretreatment temperature is 100-110 ° C, and the holding time is 30-60 min; the dyeing process adopts an exhaust dyeing method, the added salt is 10-80 g / L, and the dye is evenly added to the main cylinder of the dyeing machine at 40-50 ° C within 10-30 min. The dye concentration is 0.1%-8% of the total weight of the tension-free yarn bundle, the power of the circulating pump is 80-95% of the rated power, and when the dyeing machine loading rate (the improved device loading rate can be higher than the factory setting loading rate and can exceed 100%, the loading rate is the weight loading rate) is 100%, the power of the circulating pump is 85% of the rated power, and the loading rate is ±10%, the power of the circulating pump is ±5%.

[0031] The dye liquor circulation direction adopts a non-reversing mode to ensure that the yarn bundle is fully in contact with the dye liquor, and the temperature is kept for 20-45 minutes, then the temperature is raised to 60-90℃, and soda ash is added with a soda ash concentration of 5-20 g / L, and the color is fixed for 40-60 minutes.

[0032] The dye liquor circulation direction adopts a non-reversing mode to ensure that the yarn bundle is in full contact with the dye liquor. The temperature is raised to 60-90°C at 1°C / min, kept at this temperature for 20-45 minutes, and fixed for 40-60 minutes.

[0033] In the one-bath pretreatment and whitening process described in step 4), the scouring, bleaching, and whitening working solutions consist of 2-4 g / L of scouring agent, 2-4 g / L of caustic soda, 4-8 g / L of hydrogen peroxide, and 0.4-0.7% of whitening agent (based on the total weight of the tension-free yarn bundle). The temperature is 100-110°C, the holding time is 30-60 minutes, and the circulating pump power is 80-95% of the rated power. When the dyeing machine loading rate (the loading rate of the improved device can be higher than the factory setting and can exceed 100%, the loading rate is based on weight) is 100%, the circulating pump power is 85% of the rated power. For every ±10% increase in loading rate, the circulating pump power increases by ±5%. The working solution circulation direction is non-reversing to ensure sufficient contact between the yarn bundle and the dye solution.

[0034] The yarn described in step 1) is cellulose fiber, regenerated fiber, synthetic fiber and their blends and core-spun; the entire processing process is carried out in a bobbin-free and tension-free state.

[0035] Step 5) soaping is performed using a soaping agent at a dosage of 1-2 g / L, the temperature is controlled at 95-105°C, and the holding time is 10-15 minutes. After soaping, the fabric is washed with water for 5-10 minutes to remove floating colors. Dark-colored fabrics are then fixed with a 2-4% cationic color fixing agent. A softener, 3-5% by weight of the tension-free yarn bundle, is added to the same bath for color fixing and softening. The process is performed at 55±1°C for 20 minutes. Light-colored or white fabrics are only softened. A softener, 3-5% by weight of the tension-free yarn bundle, is added to the bath for 20 minutes.

[0036] The use of the yarn zero color difference star cage dyeing device first requires changing the shape of the yarn. In the prior art, the loose bobbin winds the yarn on a resin bobbin. The yarn shape used in the yarn zero color difference star cage dyeing device described in the present invention is a tension-free yarn bundle, that is, the yarn is completely separated from the resin bobbin. In order to achieve this yarn bundle shape, the chuck and resin bobbin on the loose winder are modified. In the prior art, the chuck is fixed on the loose winder, and the resin bobbin and the chuck are detachably connected. After the loose winding is completed, the resin bobbin and the yarn wound on the resin bobbin are removed together and transported to the dyeing machine for dyeing. After the modification, an integrated chuck bobbin is used.

[0037] Step 1) The one-piece chuck tube includes an outer tube and an inner fixed tube. The outer tube has a smooth surface. The one-piece chuck tube is divided into a front end and a rear end. An annular sock groove is opened between the inner fixed tube and the outer tube at the rear end; a plurality of arc grooves are opened between the sock groove and the outer tube; a plurality of trapezoidal grooves are opened between the inner fixed tube and the outer tube at the front end.

[0038] The opening of the arc groove and the trapezoidal groove helps to reduce the weight of the integrated chuck bobbin and increase the spinning speed. Before use, the integrated chuck bobbin is covered with a tubular knitted sock with unsealed ends. Because the inner fixed tube of the integrated chuck bobbin is installed on the bobbin shaft of the loose automatic bobbin winder, the rear end is close to the bottom of the bobbin shaft, one end of the sock is inserted into the annular plug sock groove for fixation, and the other end of the sock is inserted into the inner fixed tube at the front end and then the inner fixed tube is plugged with a sock fixing plug. The sock fixing plug is a truncated cone-shaped hollow plug. The diameter of the small diameter end of the cone is smaller than the diameter of the inner fixed tube, and the large diameter end of the cone is larger than the diameter of the inner fixed tube. This ensures that the sock is plugged and fixed at the front end of the integrated chuck bobbin. During the winding process of the yarn on the loose winder, the yarn is wound onto the outside of the sock. After winding, the two ends of the sock are lifted and gathered together in the middle. The yarn wrapped by the sock is then pulled off the integrated chuck bobbin to obtain the tension-free yarn bundle wrapped by the sock. Using the sock to cover the tension-free yarn bundle can prevent the tension-free yarn bundle from being washed away by the working solution or dye solution in the yarn zero color difference star cage dyeing device.

[0039] Step 7) The telescopic yarn support frame includes a main rod, a hollow cavity is provided in the center of the main rod, and a front fixed head and a rear fixed head are provided at both ends of the main rod. A spring is provided inside the front fixed head, and the bottom of the spring is in contact with the annular sleeve. An adjustment hole is provided on the main rod, and an adjustment slider is provided above the adjustment hole. A strip sliding hole is provided on the adjusting slider, and a locking bolt passes through the strip sliding hole and the adjustment hole to fix the adjusting slider on the main rod, and one end of the adjusting slider is in contact with the annular sleeve. The telescopic yarn support frame also includes a plurality of tension bars telescopically connected to the main rod, and the rear fixed head is connected to the tension bar through a fixed bracket, and the fixed bracket is connected to the rear fixed head and the tension bar in a hinged manner. The annular sleeve is connected to the tension bar through a movable bracket, and the movable bracket is hinged to the annular sleeve. A slide groove is provided on the tension bar, and the movable bracket is connected to the tension bar through an adjustment shaft passing through the slide groove.

[0040] The spring is fixed inside the front fixing head via a fixing pin.

[0041] The tension strip is provided with a plurality of anti-slip protrusions.

[0042] The bottom of the adjustment slider is an arc-shaped surface that fits tightly with the main rod. This design can prevent the adjustment slider from swinging left and right or rotating, so that the adjustment slider can only move up and down along the axis, so that it can better resist the annular sleeve and the structure is more stable.

[0043] The tension strip is radially expanded outwardly near the rear fixed head end and away from the main rod, and is radially converged inwardly near the front fixed head end and close to the main rod.

[0044] The tension-free yarn bundle is inserted into the outside of the tension bar from the front fixed head end, and the inward converging end acts as a guide, making it easier for the tension-free yarn bundle to be inserted into the outside of the tension bar with tension. By setting the position of the spring, annular sleeve and adjustment slider, the appropriate position is selected according to different yarn bundle diameters. The spring applies an outward tension, so that the tension-free yarn bundle can always remain in a taut state on the tension bar, thereby smoothly completing the active unwinding process. As the active unwinding process proceeds, the yarn on the tension bar becomes less and less, and the inward pressure becomes smaller and smaller. The spring can continue to apply outward pressure to keep the yarn bundle in a taut state at all times.

[0045] The hollow cavity of the main rod of the telescopic yarn support frame is inserted into the active unwinding bobbin shaft of the active unwinding automatic winder. Preferably, it is further fixed in the front with a fixed clamp to prevent it from falling off during the unwinding rotation process. During the unwinding process, the telescopic yarn support frame rotates with the active unwinding bobbin shaft, and the yarn is easily slipped outward due to the axial force of the rotation of the active unwinding bobbin shaft. The anti-slip protrusion and the outward expansion end of the tension bar can work together to prevent the yarn from slipping and falling off.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] (1) This invention breaks the conventional thinking of dyeing yarn using bobbins. It adopts a bobbin-free, tension-free yarn bundle dyeing method. This solves the problem in the prior art that the resin bobbin has no elasticity, the yarn tightly wound on the resin bobbin has difficulty in uniform dye penetration, and is prone to color difference and uneven dyeing of the inner and outer layers. At the same time, the resin bobbin is eliminated, and there is no need to carry the resin bobbin during the dyeing process, saving manpower and material resources.

[0048] (2) In the prior art, the resin tube will be stained by different dyes. The stained resin tube cannot be used to dye cheese yarns of other colors, which narrows the scope of application. The present invention adopts tube-free dyeing to produce any color according to the color requirements, which broadens the scope of application of the color spectrum.

[0049] (3) In the yarn zero color difference star cage dyeing device, the tensionless yarn bundle ejects the working fluid or dye liquor through the central star tube for treatment. Compared with the prior art where the perforated pipeline in the center of the resin bobbin tubes stacked in several stacks ejects the working fluid or dye liquor, the working fluid or dye liquor ejected from a single star tube is more uniform than that ejected from several pipelines in different strands, further solving the problem of color difference between cheese yarns in the prior art.

[0050] (4) In the present invention, the tensionless yarn bundles in the star cage are arranged in a "pin" - shaped staggered and surrounding manner, with no radial gaps from top to bottom and from inside to outside. Therefore, there will be no loss of the flow rate of the working fluid or dye liquor. The working fluid or dye liquor ejected from the star tube must penetrate through contact with the yarn before re - entering the circulation, greatly improving the production efficiency.

[0051] (5) For the dyeing process described in the present invention, the adjustment and control of various process parameters during the dyeing process result in no color difference between the inner and outer layers of the dyed yarn bundle; the generation of waste yarn is reduced, thereby reducing the dyeing cost.

[0052] (6) For the dyeing process described in the present invention, the color penetration is good, the color brightness and yarn fastness are relatively good, and it can be applied to various style yarn - dyed fabrics.

[0053] (7) Since the present invention dyes tensionless yarn bundles, unlike tightly structured cheese yarns, using a low - circulation flow rate for dyeing can achieve uniform dyeing. At the same time, low - flow dyeing can also reduce the loss of yarn strength and save energy costs.

[0054] (8) The present invention uses tube - free dyeing. In a dyeing machine of the same model, it can hold more yarn bundles, enabling large - batch dyeing of yarn bundles, improving the production efficiency. Moreover, not using resin bobbin tubes greatly reduces the production cost, and there is no need to handle bobbins, making the production process more flexible and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic structural diagram of the yarn zero color difference star cage dyeing device described in the present invention;

[0056] Figure 2 It is a three - dimensional structural diagram of the star tube, star cage, star cage yarn bundle seat and central rod described in the present invention;

[0057] Figure 3 It is an exploded structural diagram of the pressing and sealing device and the lifting nut described in the present invention;

[0058] Figure 4 It is a top view of the star tube, star cage and gasket described in the present invention;

[0059] Figure 5A top view of the yarn bundle grate according to the present invention;

[0060] Figure 6 This is a schematic structural diagram of the cross chain sling according to the present invention;

[0061] Figure 7 This is a schematic diagram of the rear-end three-dimensional structure of the integrated chuck barrel of the present invention;

[0062] Figure 8 This is a schematic diagram of the front-end three-dimensional structure of the integrated chuck barrel of the present invention;

[0063] Figure 9 Schematic diagram of the perspective structure of the rear end surface of the integrated chuck barrel of the present invention;

[0064] Figure 10 Schematic diagram of the perspective structure of the front end surface of the integrated chuck barrel of the present invention;

[0065] Figure 11 An axial cross-sectional view of the integrated chuck barrel of the present invention;

[0066] Figure 12 This is a schematic structural diagram of the sock fixing plug of the present invention;

[0067] Figure 13 This is a schematic structural diagram of the telescopic yarn support frame of the present invention;

[0068] Figure 14 This is a front view of the adjustment slider of the present invention;

[0069] Figure 15 A top view of the adjusting slider according to the present invention;

[0070] In the figure: 1. Star tube; 2. Star cage; 3. Star cage yarn bundle holder; 4. Circulation pipeline; 5. Heater; 6. Circulation pump; 7. Motor; 8. Sealing gasket; 9. Cross hanging chain; 901. Cross rod; 902. Diameter adjustment ring; 903. Suspension chain; 904. Disassembly buckle; 10. Yarn bundle grate; 1001. Lifting ring; 11. Yarn bundle pressure cover; 12. Blind pipe; 13. Cap; 14. Lock nut; 15. Lifting nut; 16. Liquid outlet pipe; 17. Dyeing machine main cylinder; 18. Center rod; 19. Main rod; 2 0. Tension bar; 2001. Anti-slip protrusion; 21. Fixed bracket; 22. Movable bracket; 23. Spring; 24. Fixed pin; 25. Annular sleeve; 26. Adjustment slider; 2601. Strip slide hole; 27. Locking bolt; 28. Adjustment hole; 29. Slide groove; 30. Hollow cavity; 31. Front fixed head; 32. Rear fixed head; 33. Integrated chuck barrel; 34. Sock plug groove; 35. Inner fixed cylinder; 36. Arc groove; 37. Trapezoidal groove; 38. Sock barrel fixing plug; 39. Drain pipe; 40. Outer cylinder. DETAILED DESCRIPTION

[0071] The present invention will be further described below with reference to the examples.

[0072] Unless otherwise specified, all raw materials used in the examples are commercially available.

[0073] The refining agent was SA-E purchased from Zibo Lurui Fine Chemical Co., Ltd.

[0074] The brightener was Raywhite CE purchased from Zibo Lurui Fine Chemical Co., Ltd.

[0075] The soaping agent was WO purchased from Zibo Lurui Fine Chemical Co., Ltd.;

[0076] The softener was LUA purchased from Zibo Lurui Fine Chemical Co., Ltd.

[0077] The fixing agent was FA-LV purchased from Zibo Lurui Fine Chemical Co., Ltd.

[0078] The mass concentration of hydrogen peroxide is 27.5%.

[0079] The manufacturer and model of the dyeing machine are Lixin Dyeing and Finishing Machinery (Shenzhen) Co., Ltd., ALLWIN-90.

[0080] The manufacturer and model of the loose winder are Swiss SSM Textile Machinery Company and PWX-W.

[0081] The manufacturer and model of the active unwinding automatic winder are Zhejiang Weifeng Machinery Co., Ltd. and WF-60A.

[0082] Device embodiment

[0083] The yarn zero color difference star cage dyeing device: Figure 1-6 As shown, it includes a dyeing machine main cylinder 17, and a detachable star cage dyer is provided inside the dyeing machine main cylinder 17. The star cage dyer includes a star cage cover 2, and the bottom of the star cage cover 2 is a star cage yarn bundle frame 3. A star tube 1 is vertically provided inside the star cage cover 2, and the star tube 1 passes through the star cage yarn bundle frame 3 and is correspondingly connected to the upper end of the circulation pipeline 4 under the dyeing machine main cylinder 17. A detachable yarn bundle grate 10 is provided inside the star cage cover 2, and the yarn bundle grate 10 passes through the star tube 1 and is provided on the star cage yarn bundle frame 3. A center rod 18 is provided on the top of the star tube 1, and a compression sealing device is threadedly connected to the center rod 18, and a lifting nut 15 is threadedly connected to the compression sealing device and the center rod 18; the circulation pipeline 4 is connected to the heater 5, the circulation pump 6, and the motor 7, and the dyeing machine main cylinder 17 is connected to the circulation pump 6 through the liquid outlet pipe 16; a number of overflow holes are provided on the star cage cover 2 and the star tube 1.

[0084] The yarn bundle grate 10 is provided with a lifting ring 1001 .

[0085] The yarn zero color difference star cage dyeing device also includes a cross hanging chain 9, which includes a cross rod 901, a plurality of diameter adjustment rings 902 are provided below the cross rod 901, a ring-shaped lifting structure is provided at the center of the cross rod 901, and also includes a suspension chain 903, and disassembly buckles 904 are provided at both ends of the suspension chain 903.

[0086] The suspension chain 903 can be buckled onto the diameter adjustment ring 902 at different positions according to the diameter specifications of the yarn bundle grate 10, so as to be adapted to yarn bundle grate 10 of various specifications.

[0087] The compression and sealing device comprises, from bottom to top, a yarn bundle pressure cover 11, a blind tube 12, a cap 13, and a locking nut 14;

[0088] A sealing pad 8 is provided between the star cage yarn bundle frame seat 3 and the yarn bundle grate 10. The sealing pad 8 forms a seal with the yarn bundle grate 10 to prevent loss of dye liquor flow.

[0089] The circulation line 4 is connected to the drain pipe 39. The drain pipe 39 is provided with a valve, and when the working liquid or dye solution needs to be discharged, the valve is automatically controlled to discharge.

[0090] The one-piece chuck barrel 33: Figure 7-12 As shown, it includes an outer tube 40 and an inner fixed tube 35. The outer tube 40 has a smooth surface. The integrated chuck tube 33 is divided into a front end and a rear end. An annular sock plugging groove 34 is provided between the inner fixed tube 35 and the outer tube 40 at the rear end; a plurality of arc-shaped grooves 36 are provided between the sock plugging groove 34 and the outer tube 40; and a plurality of trapezoidal grooves 37 are provided between the inner fixed tube 35 and the outer tube 40 at the front end.

[0091] The provision of the arc groove 36 and the trapezoidal groove 37 helps to reduce the weight of the integrated chuck bobbin 33 and increase the spinning speed. Before use, the integrated chuck bobbin 33 is covered with a tubular knitted sock tube with unsealed ends. Because the inner fixed tube 35 of the integrated chuck bobbin 33 is installed on the bobbin shaft of the loose automatic bobbin winder, the rear end is close to the bottom of the bobbin shaft, one end of the sock tube is inserted into the annular plug sock groove 34 for fixation, and the other end of the sock tube is inserted into the inner fixed tube 35 at the front end, and then the inner fixed tube 35 is plugged with a sock tube fixing plug 38. The sock tube fixing plug 38 is a truncated cone-shaped hollow plug, the diameter of the small diameter end of the cone is smaller than the diameter of the inner fixed tube 35, and the large diameter end of the cone is larger than the diameter of the inner fixed tube 35, so as to ensure that the sock tube is plugged and fixed at the front end of the integrated chuck bobbin 33. During the process of winding the yarn through the loose-type winder, the yarn is wound onto the outside of the sock. After winding, the two ends of the sock are lifted and gathered together in the middle. The yarn wrapped by the sock is then pulled off the integrated chuck bobbin 33 to obtain the tension-free yarn bundle wrapped by the sock. Using the sock to cover the tension-free yarn bundle can prevent the tension-free yarn bundle from being dispersed by the working liquid or dye liquid in the yarn zero color difference star cage dyeing device.

[0092] The telescopic yarn support frame: Figure 13-15 As shown, it includes a main rod 19, a hollow cavity 30 is provided in the center of the main rod 19, a front fixed head 31 and a rear fixed head 32 are provided at both ends of the main rod 19, a spring 23 is provided inside the front fixed head 31, and the bottom of the spring 23 abuts against the annular sliding sleeve 25, an adjustment hole 28 is provided on the main rod 19, an adjustment slider 26 is provided above the adjustment hole 28, a strip slide hole 2601 is provided on the adjustment slider 26, a locking bolt 27 passes through the strip slide hole 2601 and the adjustment hole 28 to fix the adjustment slider 26 on the main rod 19, and the adjustment slider 26 is fixed to the main rod 19. One end is in contact with the annular sleeve 25, and the telescopic yarn support frame also includes four tension bars 20 telescopically connected to the main rod 19. The rear fixed head 32 is connected to the tension bar 20 through a fixed bracket 21, and the fixed bracket 21 is connected to the rear fixed head 32 and the tension bar 20 in a hinged manner. The annular sleeve 25 is connected to the tension bar 20 through a movable bracket 22, and the movable bracket 22 is hinged to the annular sleeve 25. A slide groove 29 is provided on the tension bar 20, and the movable bracket 22 is connected to the tension bar 20 through an adjusting shaft passed through the slide groove 29.

[0093] The spring 23 is fixed inside the front fixing head 31 via a fixing pin 24 .

[0094] The tension strip 20 is provided with a plurality of anti-slip protrusions 2001 .

[0095] The bottom of the adjusting slider 26 is an arc surface, which fits closely with the main rod 19. This design can prevent the adjusting slider 26 from swinging or rotating left and right, making the adjusting slider 26 can only move up and down along the axis, so that it can better resist the annular sliding sleeve 25 and the structure is more stable.

[0096] The tension bar 20 expands radially outward in the direction away from the main rod 19 near the rear fixing head 32, and converges radially inward in the direction close to the main rod 19 near the front fixing head 31.

[0097] The tension-free yarn bundle is sleeved outside the tension bar 20 from the front fixing head 31 end. The inward-converging end plays a guiding role, making it easier for the tension-free yarn bundle to be sleeved outside the tensioned tension bar 20. By setting the positions of the spring 23, the annular sliding sleeve 25 and the adjusting slider 26, and selecting a suitable position according to different yarn bundle diameters, the spring 23 applies an outward tension, so that the tension-free yarn bundle can always maintain a taut state on the tension bar 20, so that the process of active unwinding can be successfully completed. As the active unwinding process progresses, the yarn on the tension bar 20 becomes less and less, and the inward pressure becomes smaller and smaller. The spring 23 can continuously apply an outward pressure to keep the yarn bundle in a taut state at any time.

[0098] The hollow cavity 30 of the main rod 19 of the telescopic yarn support frame is inserted into the active unwinding bobbin shaft of the active unwinding automatic winder. Preferably, it is further fixed with a fixed chuck in the front to prevent it from falling off during the unwinding rotation process. During the unwinding process, the telescopic yarn support frame rotates with the active unwinding bobbin shaft. The yarn is easily slid outwards under the influence of the axial force of the active unwinding bobbin shaft rotation. The anti-slip protrusions and the outward-expanding end of the tension bar 20 can cooperate to prevent the yarn from slipping and falling off.

[0099] Example 1

[0100] The dyeing process using the yarn zero-color difference star cage dyeing device described above includes the following process steps:

[0101] 1) Soft winding: The pure cotton 40-count fine fleece cotton yarn is evenly wound into a tension-free yarn bundle through the integral chuck bobbin 33 of the soft winding machine. The individual weight of the tension-free yarn bundle is 2 kg / each;

[0102] 2) Yarn bundle loading: Use a lifting device to lift the ring-shaped lifting structure of the cross lifting chain 9, and the disassembly buckle 904 below the suspension chain 903 hooks the lifting ring 1001 of the yarn bundle grate 10, and horizontally lift the yarn bundle grate 10. The tension-free yarn bundle wrapped with a sock tube is placed layer by layer around the center in a ring shape on the yarn bundle grate 10. The placement method of the tension-free yarn bundle is staggered in both the horizontal and vertical directions, that is, in a "pin" shape. The loading rate of the tension-free yarn bundle grate 10 is 120%;

[0103] 3) Assembly of the yarn zero-color-difference star-cage dyeing device: Pass the sealing gasket 8 through the star tube 1 and press it onto the star-cage yarn bundle holder 3. Then, pass the filled yarn bundle grate 10 through the star tube 1 and place it on the sealing gasket 8. Pass the yarn bundle gland 11 through the star tube 1 and press it onto the arranged tension-free yarn bundle. Then, select the length of the blind tube 12 according to the filling height of the tension-free yarn bundle and press it onto the yarn bundle gland 11. Then, successively, fix the cap 13, the locking nut 14, and the lifting nut 15 to the center rod 18 through threads. The lifting device hooks the lifting nut 15 and places the assembled device into the dyeing machine main cylinder 17. The star-cage yarn bundle holder 3 and the circulation pipeline 4 at the bottom of the dyeing machine main cylinder 17 fit tightly together, without flow loss.

[0104] 4) Pre-treatment whitening one-bath process: The working liquid circulation method is adopted for treatment: the circulation pump 6 is started, and the scouring, bleaching and whitening working liquid: 2g / L of refining agent, 2g / L of caustic soda, 4g / L of hydrogen peroxide, and 0.7% of whitening agent (based on the total weight of the tension-free yarn bundle) is pumped into the star tube 1 through the circulation pipeline. The working liquid is fully contacted with the tension-free yarn bundle placed in the star cage 2 from the inside out through the overflow hole on the star tube 1. Then, the working liquid overflows into the main cylinder 17 of the dyeing machine through the overflow hole on the star cage 2, and is pumped into the star tube 1 again through the liquid outlet pipe 16 via the circulation pump 6. The treatment cycle is repeated. The treatment temperature is 100±1°C, the power of the circulation pump 6 is 95% of the rated power, and the treatment time is 30 minutes. The working liquid adopts the inside-out direction without reversing throughout the process. After completion, the scouring, bleaching and whitening working liquid is discharged through the drain pipe 39.

[0105] 5) Post-treatment: The yarn bundles after whitening are softened by using the working fluid circulation method. The process temperature is 55±1℃*20min, the softener is 3%, the glacial acetic acid is 0.8g / L, the power of the circulating pump 6 is 95% of the rated power, and the working fluid is in the inside-outside direction without reversing throughout the process.

[0106] 6) Dehydration and drying: The tension-free yarn bundle is dehydrated by a centrifugal dehydrator and then dried;

[0107] 7) Tight winding: After being dried, the tension-free yarn bundle is evenly supported by the telescopic yarn support frame and then installed on the active unwinding bobbin shaft of the active unwinding automatic winder for tight winding.

[0108] Example 2

[0109] The dyeing process using the yarn zero color difference star cage dyeing device includes the following process steps:

[0110] 1) Loose winding: The 20-count long-staple cotton yarn is evenly wound into a tension-free yarn bundle through the loose winding machine's integrated chuck bobbin 33. The weight of each tension-free yarn bundle is 0.5 kg.

[0111] 2) Bundle loading: Use a lifting device to hold the ring-shaped lifting structure of the cross lifting chain 9. The disassembly buckle 904 below the suspension chain 903 hooks the lifting ring 1001 of the yarn bundle grate 10, horizontally lift the yarn bundle grate 10, and layer by layer place the tension-free yarn bundle wrapped with a stocking tube around the center in a circular pattern on the yarn bundle grate 10. The placement method of the tension-free yarn bundle is staggered in both the horizontal and vertical directions, that is, in a "pin" shape. The loading rate of the tension-free yarn bundle grate 10 is 90%;

[0112] 3) Assembly of the yarn zero-color difference star cage dyeing device: Pass the gasket 8 through the star tube 1 and press it onto the star cage yarn bundle support base 3. Then pass the loaded yarn bundle grate 10 through the star tube 1 and place it on the gasket 8. Pass the yarn bundle pressing cover 11 through the star tube 1 and press it on the placed tension-free yarn bundle. Then select the length of the blind tube 12 according to the loading height of the tension-free yarn bundle and press it on the yarn bundle pressing cover 11.依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;

[0113] 4) One-bath process for pretreatment and whitening: Use the working fluid circulation method for treatment: Start the circulation pump 6 and pump the scouring, bleaching, and whitening working fluid: 3 g / L of scouring agent, 3 g / L of caustic soda, 6 g / L of hydrogen peroxide, 0.5% (based on the total weight of the tension-free yarn bundle) of whitening agent from the circulation pipeline into the star tube 1. Through the overflow holes on the star tube 1, it successively makes full contact with the tension-free yarn bundle placed in the star cage 2 from the inside to the outside, and then overflows to the main cylinder 17 of the dyeing machine through the overflow holes on the star cage 2, and is pumped into the star tube 1 again through the liquid discharge pipe 16 via the circulation pump 6, and the treatment is carried out in a cycle. The treatment temperature is 105 ± 1 °C, the power of the circulation pump 6 is 80% of the rated power, the treatment time is 40 min, and the working fluid does not change direction inside and outside throughout the process. After the end, drain the scouring, bleaching, and whitening working fluid through the drain pipe 39;

[0114] 5) Post-treatment: Use the working fluid circulation method for treatment, soften the whitened yarn bundle, treat it at 55 ± 1 °C for 20 min, with 4.5% softening agent and 0.8 g / L glacial acetic acid. The power of the circulation pump 6 is 80% of the rated power, and the dyeing solution does not change direction inside and outside throughout the process;

[0115] 6) Dehydration and drying: Dehydrate the tension-free yarn bundle through a centrifugal dehydrator and then dry it;

[0116] 7) Compact winding: After the dried tension-free yarn bundle is evenly supported by the telescopic yarn support frame, it is installed on the active unwinding bobbin shaft of the active unwinding automatic winder for compact winding.

[0117] Example 3

[0118] The dyeing process using the yarn zero-color-difference star cage dyeing device described above includes the following process steps:

[0119] 1) Soft twist winding: The 20s long-staple cotton yarn is evenly wound into a non-tension yarn bundle through the integral chuck bobbin 33 of the soft twist winding machine. The individual weight of the non-tension yarn bundle is 1 kg per bundle.

[0120] 2) Yarn bundle loading: Use a lifting device to hold the ring-shaped lifting structure of the cross lifting chain 9. The disassembly buckle 904 below the suspension chain 903 hooks the lifting ring 1001 of the yarn bundle grate 10, and horizontally lift the yarn bundle grate 10. Place the non-tension yarn bundle wrapped with a sock tube layer by layer around the center in a staggered manner on the yarn bundle grate 10 both horizontally and vertically, that is, in a "pin" shape. The loading rate of the non-tension yarn bundle grate 10 is 100%.

[0121] 3) Assembly of the yarn zero-color-difference star cage dyeing device: Pass the gasket 8 through the star tube 1 and press it onto the star cage yarn bundle holder 3. Then pass the loaded yarn bundle grate 10 through the star tube 1 and place it on the gasket 8. Pass the yarn bundle pressing cover 11 through the star tube 1 and press it on the placed non-tension yarn bundle. Then select the length of the blind tube 12 according to the loading height of the non-tension yarn bundle and press it on the yarn bundle pressing cover 11.依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;依次将帽盖13、锁紧螺母14​​​​​​

[0124] 6) Dehydration and drying: The non-tension yarn bundle is dehydrated by a centrifugal dehydrator and then dried.

[0125] 7) Tight winding: After the dried non-tension yarn bundle is evenly supported by a telescopic yarn support frame, it is installed on the active unwinding bobbin shaft of an active unwinding automatic winder for tight winding.

[0126] Example 4

[0127] The dyeing process using the yarn zero-color-difference star cage dyeing device described above includes the following process steps:

[0128] 1) Loose winding: The pure cotton 40s fine count cotton yarn is evenly wound into a non-tension yarn bundle through the integral chuck bobbin 33 of a loose winding machine, and the individual weight of the non-tension yarn bundle is 2 kg per piece.

[0129] 2) Yarn bundle loading: Use a lifting device to hold the ring-shaped lifting structure of the cross lifting chain 9, and the disassembly buckle 904 below the suspension chain 903 hooks the lifting ring 1001 of the yarn bundle grate 10, horizontally lift the yarn bundle grate 10, and layer by layer place the non-tension yarn bundle wrapped with a sock tube around the center in a staggered manner on the yarn bundle grate 10. The placement method of the non-tension yarn bundle is staggered both horizontally and vertically, that is, in a "pin" shape. The loading rate of the non-tension yarn bundle grate 10 is 120%.

[0130] 3) Assembly of the yarn zero-color-difference star cage dyeing device: Pass the gasket 8 through the star tube 1 and press it onto the star cage yarn bundle holder 3, then pass the loaded yarn bundle grate 10 through the star tube 1 and place it on the gasket 8, pass the yarn bundle pressing cover 11 through the star tube 1 and press it on the placed non-tension yarn bundle, then select the length of the blind tube 12 according to the loading height of the non-tension yarn bundle and press it on the yarn bundle pressing cover 11.依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;

[0131] 4) Pretreatment + dyeing process: The working fluid circulation method is used for treatment:

[0132] Circulation pump 6 is started to carry out the pretreatment process: scouring and bleaching working solution (2 g / L of refining agent, 2 g / L of caustic soda, and 4 g / L of hydrogen peroxide) is pumped into star tube 1 through the circulation line. The solution then flows from the inside out through the overflow hole on star tube 1 to fully contact the tension-free yarn bundle placed in star cage 2. The solution then overflows through the overflow hole on star cage 2 into the dyeing machine main cylinder 17. The solution is then pumped back into star tube 1 through outlet pipe 16 via circulation pump 6, and the treatment cycle is repeated. The pretreatment temperature is 100±1°C, the holding time is 60 minutes, and the power of circulation pump 6 is 95% of the rated power. The dye liquor is operated from inside to outside without reversing. After the pretreatment scouring and bleaching process is completed, the scouring and bleaching working solution is completely discharged through drain pipe 39.

[0133] The dyeing process uses an exhaust dyeing method with a bath ratio of 1:8. After adding 10g / L of sodium sulfate at 35±5°C, the temperature is linearly increased (2°C / min) to 50°C. 0.1% of reactive blue (based on the total weight of the tension-free yarn bundle) is added at a linear constant speed over 10 minutes. The temperature is then linearly increased (1°C / min) to 60°C and held for 20 minutes. 5g / L of soda ash is added at a linear constant speed over 30 minutes. After dyeing, the color is fixed for 40 minutes before the residual liquid is discharged. The power of circulating pump 6 is 95% of the rated power, and the dyeing process uses an inside-outside rotation without reversing.

[0134] Water, dyes and auxiliaries are added to obtain dye liquor, which is also sprayed from the star tube 1 from the inside out by a circulating pump 6, and overflows from the star cage 2 through the tension-free yarn bundle to the main cylinder 17 of the dyeing machine and then circulates back and forth;

[0135] 5) Post-treatment: Wash, soap, and soften using a working fluid circulation method. Wash with 60°C hot water for 10 minutes, then add soaping agent for soaping. Use 1g / L soaping agent and wash at 98±1°C for 15 minutes. Softening is performed at 55±1°C for 20 minutes, with 3% softener (based on the total weight of the tension-free yarn bundle) and 0.8g / L glacial acetic acid. Circulating pump 6 is used at 95% of its rated power, and the working fluid is operated in an inside-out direction without reversing.

[0136] 6) Dehydration and drying: The tension-free yarn bundle is dehydrated by a centrifugal dehydrator and then dried;

[0137] 7) Tight winding: After being dried, the tension-free yarn bundle is evenly supported by the telescopic yarn support frame and then installed on the active unwinding bobbin shaft of the active unwinding automatic winder for tight winding.

[0138] Example 5

[0139] The dyeing process using the yarn zero color difference star cage dyeing device includes the following process steps:

[0140] 1) Loose winding: The 20s fine-count cotton yarn is evenly wound into a non-tension yarn bundle through the integral chuck bobbin 33 of the loose winding machine. The individual weight of the non-tension yarn bundle is 0.5 kg per bundle.

[0141] 2) Yarn bundle loading: Use a lifting device to hold the ring-shaped lifting structure of the cross lifting chain 9. The disassembly buckle 904 below the suspension chain 903 hooks the lifting ring 1001 of the yarn bundle grate 10, and the yarn bundle grate 10 is horizontally lifted. The non-tension yarn bundle wrapped with a sock tube is placed layer by layer around the center in a ring on the yarn bundle grate 10. The placement method of the non-tension yarn bundle is staggered both horizontally and vertically, that is, in a "pin" shape. The loading rate of the non-tension yarn bundle grate 10 is 90%.

[0142] 3) Assembly of the yarn zero-color-difference star cage dyeing device: Pass the gasket 8 through the star tube 1 and press it onto the star cage yarn bundle holder 3. Then pass the loaded yarn bundle grate 10 through the star tube 1 and place it on the gasket 8. Press the yarn bundle cover 11 through the star tube 1 onto the placed non-tension yarn bundle. Then select the length of the blind tube 12 according to the loading height of the non-tension yarn bundle and press it on the yarn bundle cover 11.依次将帽盖13、锁紧螺母14、起吊螺母15通过螺纹与中心杆18固定连接,起吊装置勾住起吊螺母15将组装好的装置置于染色机主缸17内,星笼纱束架座3与染色机主缸17底部的循环管路4紧密配合,无流量损失;

[0143] 4) Pretreatment + dyeing process: Use the working fluid circulation method for treatment:

[0144] Start the circulation pump 6 for the pretreatment process: Pump the scouring and bleaching working fluid (scouring agent 3 g / L, caustic soda 3 g / L, hydrogen peroxide 6 g / L) into the star tube 1 through the circulation pipeline. Through the overflow holes on the star tube 1, it contacts the non-tension yarn bundles placed in the star cage 2 from the inside out in sequence, and then overflows into the main cylinder 17 of the dyeing machine through the overflow holes on the star cage 2, and is pumped into the star tube 1 again through the liquid outlet pipe 16 via the circulation pump 6 for repeated treatment. The pretreatment temperature is 105 ± 1 °C, the heat preservation time is 40 min, the power of the circulation pump 6 is 80% of the rated power, and the dye liquor does not change direction inside and outside throughout the process. After the scouring and bleaching process of the pretreatment is completed, drain the scouring and bleaching working fluid through the drain pipe 39.

[0145] Perform the dyeing process by immersion dyeing method. The bath ratio is 1:8. After adding 40 g / L of sodium sulfate at 35 ± 5°C, linearly heat up (2°C / min) to 40°C, and add 4% of reactive yellow dye (based on the total weight of the tension-free yarn bundle) within 30 minutes in a linear and uniform manner. Then linearly heat up (1°C / min) to 90°C and hold for 30 minutes. Add 10 g / L of soda ash within 30 minutes in a linear and uniform manner, hold for 50 minutes for color fixation, and then drain the residual liquid. The power of the circulation pump 6 is 80% of the rated power, and the dyeing liquid does not change direction inside and outside throughout the process;

[0146] Add water, dye, and additives to obtain the dyeing liquid. Similarly, use the circulation pump 6 to spray the dyeing liquid from the star tube 1 from the inside to the outside, pass through the tension-free yarn bundle, overflow from the star cage 2 to the main cylinder 17 of the dyeing machine, and then circulate back and forth;

[0147] 5) Post-treatment: Perform the steps of washing, soaping, color fixation, and softening, and use the working liquid circulation method for treatment; wash with 60°C hot water for 10 minutes; then add a soaping agent for soaping treatment. Use 1 g / L of the soaping agent and wash at 98 ± 1°C for 15 minutes. Then wash with water to remove the floating color, perform softening and color fixation in the same bath, treat at 55 ± 1°C for 20 minutes, 5% of softener (based on the total weight of the tension-free yarn bundle), 4% of color fixing agent (based on the total weight of the tension-free yarn bundle), 0.8 g / L of glacial acetic acid, the power of the circulation pump 6 is 80% of the rated power, and the working liquid does not change direction inside and outside throughout the process;

[0148] 6) Dehydration and drying: Dehydrate the tension-free yarn bundle through a centrifugal dehydrator and then dry it;

[0149] 7) Compact winding: After the dried tension-free yarn bundle is evenly supported by the telescopic yarn support frame, it is installed on the active unwinding bobbin shaft of the active unwinding automatic winder for compact winding.

[0150] Example 6

[0151] The dyeing process using the yarn zero-color-difference star cage dyeing device described above includes the following process steps:

[0152] 1) Loose winding: Wind the pure cotton 20s fine count cotton yarn evenly into a tension-free yarn bundle through the integral chuck bobbin 33 of the loose winder, and the individual weight of the tension-free yarn bundle is 1 kg / each;

[0153] 2) Yarn bundle loading: Use a lifting device to hold the ring-shaped lifting structure of the cross lifting chain 9, and the disassembly buckle 904 below the suspension chain 903 hooks the lifting ring 1001 of the yarn bundle grate 10, horizontally lift the yarn bundle grate 10, and place the tension-free yarn bundle wrapped with a sock tube layer by layer around the center in a ring shape on the yarn bundle grate 10. The placement method of the tension-free yarn bundle is staggered in both the horizontal and vertical directions, that is, in a "pin" shape. The loading rate of the tension-free yarn bundle grate 10 is 100%;

[0154] 3) Assembly of the yarn zero-color-difference star-cage dyeing device: Pass the sealing gasket 8 through the star tube 1 and press it onto the star-cage yarn bundle holder 3. Then, pass the filled yarn bundle grate 10 through the star tube 1 and place it on the sealing gasket 8. Pass the yarn bundle gland 11 through the star tube 1 and press it onto the arranged tension-free yarn bundle. Then, select the length of the blind tube 12 according to the filling height of the tension-free yarn bundle and press it onto the yarn bundle gland 11. Then, successively, fix the cap 13, the locking nut 14, and the lifting nut 15 to the center rod 18 through threads. The lifting device hooks the lifting nut 15 and places the assembled device into the dyeing machine main cylinder 17. The star-cage yarn bundle holder 3 and the circulation pipeline 4 at the bottom of the dyeing machine main cylinder 17 fit tightly together, without flow loss.

[0155] 4) Pre-treatment + dyeing process: using working liquid circulation method for treatment:

[0156] Circulation pump 6 is started to carry out the pretreatment process: scouring and bleaching working solution (4 g / L scouring agent, 4 g / L caustic soda, 8 g / L hydrogen peroxide) is pumped into star tube 1 through the circulation line. The solution is then fully contacted with the tension-free yarn bundle placed in star cage 2 from the inside out through the overflow hole on star tube 1. The solution then overflows into the dyeing machine main cylinder 17 through the overflow hole on star cage 2. The solution is then pumped back into star tube 1 through liquid outlet pipe 16 via circulation pump 6. The treatment cycle is repeated. The pretreatment temperature is 110±1°C, the holding time is 30 minutes, and the power of circulation pump 6 is 85% of the rated power. The dye liquor is operated from inside to outside without reversing. After the pretreatment scouring and bleaching process is completed, the scouring and bleaching working solution is completely discharged through drain pipe 39.

[0157] The dyeing process uses an exhaust dyeing method with a bath ratio of 1:8. After adding 80g / L of sodium sulfate at 35±5°C, the temperature is linearly increased (2°C / min) to 45°C. 8% of the dye Reactive Yellow (based on the total weight of the tension-free yarn bundle) is added at a linear constant speed over 20 minutes. The temperature is then linearly increased (1°C / min) to 90°C and held for 45 minutes. 20g / L of soda ash is added at a linear constant speed over 30 minutes. The color is fixed for 60 minutes before the residual liquid is drained. The power of circulating pump 6 is 85% of the rated power, and the dyeing process uses an inside-outside rotation without reversing.

[0158] Water, dyes and auxiliaries are added to obtain dye liquor, which is also sprayed from the star tube 1 from the inside out by a circulating pump 6, and overflows from the star cage 2 through the tension-free yarn bundle to the main cylinder 17 of the dyeing machine and then circulates back and forth;

[0159] 5) Post-treatment: Wash with water, soap, fix, and soften using a circulating working fluid method. Wash with 60°C hot water for 10 minutes, then add soaping agent for soaping. Use 1g / L soaping agent and wash at 98±1°C for 15 minutes. Then, rinse to remove loose color, then soften and fix in the same bath at 55±1°C for 20 minutes. Use 5% softener (based on the total weight of the tension-free yarn bundle), 4% fixative (based on the total weight of the tension-free yarn bundle), and 0.8g / L glacial acetic acid. Circulating pump 6 is operated at 85% of its rated power. The working fluid is operated in an inside-out direction without reversing throughout the entire process.

[0160] 6) Dehydration and drying: The tension-free yarn bundle is dehydrated by a centrifugal dehydrator and then dried;

[0161] 7) Tight winding: After being dried, the tension-free yarn bundle is evenly supported by the telescopic yarn support frame and then installed on the active unwinding bobbin shaft of the active unwinding automatic winder for tight winding.

[0162] Comparative Example 1

[0163] The dyeing process of a conventional loose yarn package dyeing device includes the following process steps:

[0164] 1) Loose winding: The yarn of 20-count long-staple cotton yarn is evenly wound into a density of 0.38g / cm through a loose winding machine. 3 Loose cheese yarn, weight 1kg / piece;

[0165] 2) Loose cheese loading: Each loose cheese is connected up and down, and every 10 cheeses are placed on a rod and evenly loaded on a normal creel; the loose cheese loading rate is 100%;

[0166] 3) Assembly of the loose yarn dyeing device: After each yarn rod is loaded with yarn, it is fixed on the top with a top plate. The loaded creel is then hoisted into the dye vat and fixed to the center rod of the dyeing machine with fixing screws. The creel base fits tightly with the circulation pipe at the bottom of the dyeing machine main vat to prevent flow loss.

[0167] 4) Pre-treatment whitening one-bath process: The working liquid circulation method is used for treatment: the circulation pump is started, and the scouring, bleaching, and whitening working liquids: 4g / L scouring agent, 4g / L caustic soda, 8g / L hydrogen peroxide, and 0.4% whitening agent (based on the total weight of the loose cheese yarn) are pumped into each creel rod (vertical perforated tube) through the circulation pipeline. The liquid overflows into the main cylinder of the dyeing machine and is pumped back into each creel rod through the liquid outlet pipe via the circulation pump. The treatment is repeated. The treatment temperature is 110±1℃, the circulation pump power is 95% of the rated power, and the treatment time is 60 minutes. The working liquid adopts the inside-outside non-reversing method throughout the process. After completion, the scouring, bleaching, and whitening working liquids are drained through the drain pipe.

[0168] 5) Post-treatment: The yarn bundles whitened in step 2) are softened at 55±1°C for 20 minutes, with a softener of 4.5% and glacial acetic acid of 0.8g / L. The circulating pump power is 95% of the rated power, and the dyeing process is carried out in an inside-out direction without reversing.

[0169] 6) Dehydration and drying: The loose cheese yarn is dehydrated by a centrifugal dehydrator and then dried;

[0170] 7) Tight winding: The loose package yarn after drying is tightly wound by the active unwinding automatic winder.

[0171] Comparative Example 2

[0172] The dyeing process of a conventional loose yarn package dyeing device includes the following process steps:

[0173] 1) Loose winding: The yarn of 20-count long-staple cotton yarn is evenly wound into a density of 0.38g / cm through a loose winding machine. 3 Loose cheese yarn, weight 1kg / piece;

[0174] 2) Loose cheese loading: Each loose cheese is connected up and down, and every 10 cheeses are placed on a rod and evenly loaded on a normal creel; the loose cheese loading rate is 100%;

[0175] 3) Assembly of the loose yarn dyeing device: After each yarn rod is loaded with yarn, it is fixed on the top with a top plate. The loaded creel is then hoisted into the dye vat and fixed to the center rod of the dyeing machine with fixing screws. The creel base fits tightly with the circulation pipe at the bottom of the dyeing machine main vat to prevent flow loss.

[0176] 4) Pre-treatment + dyeing process: using working liquid circulation method for treatment:

[0177] Start the circulation pump and carry out the pretreatment process: inject the scouring and bleaching working solution (4 g / L refining agent, 4 g / L caustic soda, 8 g / L hydrogen peroxide) into each creel rod (vertical perforated tube) through the circulation pipeline, overflow into the main cylinder of the dyeing machine, and then be injected into each creel rod again through the liquid outlet pipe via the circulation pump, and the treatment is repeated. The pretreatment temperature is 110±1℃, the holding time is 30 minutes, the circulation pump power is 95% of the rated power, and the dyeing liquid adopts the inside-outside non-reversing mode throughout the process. After the pretreatment scouring and bleaching process is completed, the scouring and bleaching working solution is drained through the drain pipe;

[0178] The dyeing process uses an exhaust dyeing method with a bath ratio of 1:8. After adding 10g / L of sodium sulfate at 35±5°C, the temperature is linearly increased (2°C / min) to 50°C. 8% of the dye Reactive Yellow (based on the total weight of the loose cheese yarn) is added at a linear constant speed over 10 minutes. The temperature is then linearly increased (1°C / min) to 90°C and held for 45 minutes. Soda ash (30g / L) is added at a linear constant speed over 30 minutes. The color is fixed for 60 minutes before the residual liquid is drained. The circulating pump power is 95% of the rated power, and the dyeing process uses an inside-outside rotation without reversing.

[0179] 5) Post-treatment: Washing, soaping, color fixing, and softening are performed using a working fluid circulation method. Wash with 60°C hot water for 10 minutes, then add soaping agent for soaping. Use 1g / L soaping agent and wash at 98±1°C for 15 minutes. Then, rinse with water for 5-10 minutes to remove loose colors, and then perform a color fixing and softening bath. The process is 20 minutes at 55±1°C, with 5% softener, 4% color fixing agent (based on the total weight of the loose cheese yarn), and 0.8g / L glacial acetic acid. The circulating pump power is 95% of the rated power, and the working fluid is used in an inside-out direction without reversing throughout the process.

[0180] 6) Dehydration and drying: The loose cheese yarn is dehydrated by a centrifugal dehydrator and then dried;

[0181] 7) Tight winding: The loose package yarn after drying is tightly wound by the active unwinding automatic winder.

[0182] The dyeing performance of the cheese yarns obtained in the above examples and comparative examples was tested, and the test results are shown in Table 1:

[0183] 1. Knit the socks on a knitting machine and measure the color difference between the inside and outside, and the color difference between each piece.

[0184] Color difference between inside and outside: The inner, middle and outer parts of the loose cheese yarn and yarn bundle of the comparative example and the embodiment are respectively woven into inner-middle-outer-inner continuous knitted socks, and the grade is determined using a gray card.

[0185] Color difference between individual ones:

[0186] (1) Randomly select 6 packages of yarn with different creel rods and different heights on the creel rods, weave them into continuous knitted socks, and use gray cards to determine the grade.

[0187] (2) Randomly select 6 yarn bundles of different heights and inner and outer layers from the embodiment, weave them into continuous knitted socks, and use gray card to determine the grade.

[0188] 2. Determine the color fastness of dyed yarns and evaluate them using gray cards.

[0189] 3. Strength reduction rate = (original yarn strength - colored yarn strength) / original yarn strength) × 100%.

[0190] Table 1 Test results

[0191]

[0192] When using the dyeing machine before the improvement to dye cheese yarn, because the cheese yarn has tension and high density, in order to achieve a more uniform dyeing effect, it is necessary to increase the power of the circulation pump, which will cause a significant decrease in yarn strength. Even if loose winding is performed, the cheese yarn is not in a completely tension-free and relaxed state. It is impossible to achieve zero color difference in dyeing in this state. At the same time, the dye is uneven between the creel rods of the device before the improvement, and the different heights have a great impact on the dyeing color difference.

Claims

1. A dyeing process for a yarn zero color difference star cage dyeing device, characterized in that: The yarn zero color difference star cage dyeing device comprises a dyeing machine main cylinder (17), a star cage dyeing device is detachably provided inside the dyeing machine main cylinder (17), and the star cage dyeing device comprises a star cage (2), the bottom of the star cage (2) is a star cage yarn bundle frame (3), a star tube (1) is vertically provided inside the star cage (2), the star tube (1) passes through the star cage yarn bundle frame (3) and is correspondingly connected to the upper end of the circulation pipeline (4) under the dyeing machine main cylinder (17), a detachable yarn bundle grate (10) is provided inside the star cage (2), and the yarn bundle The grate (10) passes through the star tube (1) and is arranged on the star cage yarn bundle frame seat (3). A center rod (18) is provided on the top of the star tube (1). A compression sealing device is threadedly connected to the center rod (18). A lifting nut (15) is threadedly connected to the compression sealing device and the center rod (18). The circulation pipeline (4) is connected to the heater (5), the circulation pump (6), and the motor (7). The main cylinder (17) of the dyeing machine is connected to the circulation pump (6) through the liquid outlet pipe (16). A plurality of overflow holes are provided on the star cage (2) and the star tube (1). The dyeing process comprises the following steps: 1) Loose winding: The yarn is evenly wound into a tension-free yarn bundle without a bobbin through the loose winding machine's integrated chuck bobbin (33); 2) Yarn bundle loading: The yarn bundle grate (10) is hoisted horizontally by a hoisting device, and tension-free yarn bundles without bobbins are placed layer by layer around a central ring on the yarn bundle grate (10), and the tension-free yarn bundles are placed in a staggered manner in both the horizontal and vertical directions; 3) Assembly of the yarn zero color difference star cage dyeing device: pass the sealing gasket (8) through the star tube (1) and press it onto the star cage yarn bundle holder (3), then pass the filled yarn bundle grate (10) through the star tube (1) and place it on the sealing gasket (8), pass the yarn bundle pressure cover (11) through the star tube (1) and press it onto the tension-free yarn bundle placed, then select the length of the blind tube (12) according to the filling height of the tension-free yarn bundle and press it onto the yarn bundle pressure cover (11), and fix the cap (13), locking nut (14), and lifting nut (15) to the center rod (18) through threads in turn, hook the lifting device to the lifting nut (15) and place the assembled device in the main cylinder (17) of the dyeing machine, and the star cage yarn bundle holder (3) is tightly matched with the circulation pipeline (4) at the bottom of the main cylinder (17) of the dyeing machine; 4) Pretreatment + dyeing process or pretreatment whitening one-bath process: Pretreatment + dyeing process: The working liquid circulation method is used for treatment: the circulation pump (6) is started, and the scouring and bleaching working liquid is pumped into the star tube (1) through the circulation pipeline, and the working liquid is fully contacted with the tension-free yarn bundle placed in the star cage (2) from the inside out through the overflow hole on the star tube (1), and then overflows into the dyeing machine main cylinder (17) through the overflow hole on the star cage (2), and is pumped into the star tube (1) again through the liquid outlet pipe (16) via the circulation pump (6), and the treatment is repeated. After the pretreatment scouring and bleaching process is completed, the scouring and bleaching working liquid is discharged through the discharge pipe (39), and water, dye, and auxiliary agent are added to obtain dye liquor. The dye liquor is also ejected from the star tube (1) from the inside out by the circulation pump (6), and overflows from the star cage (2) through the tension-free yarn bundle to the dyeing machine main cylinder (17) and then circulates repeatedly; Pre-treatment whitening one-bath process: The working liquid circulation method is used for treatment: the circulation pump (6) is started, and the scouring, bleaching and whitening working liquid is pumped into the star tube (1) through the circulation pipeline, and is fully contacted with the tension-free yarn bundle placed in the star cage (2) from the inside to the outside through the overflow hole on the star tube (1), and then overflows into the main cylinder (17) of the dyeing machine through the overflow hole on the star cage (2), and is pumped into the star tube (1) again through the liquid outlet pipe (16) via the circulation pump (6), and the treatment is repeated. After the end, the scouring, bleaching and whitening working liquid is discharged through the drain pipe (39); 5) Post-processing: Softening step, using working fluid circulation method; 6) Dehydration and drying: dehydrate the tension-free yarn bundle and then dry it; 7) Tight winding: After being dried, the tension-free yarn bundle is evenly supported by the telescopic yarn support frame and then installed on the active unwinding bobbin shaft of the active unwinding automatic winder for tight winding.

2. The dyeing process according to claim 1, wherein The compression sealing device comprises, from bottom to top, a yarn bundle pressure cover (11), a blind tube (12), a cap (13), and a locking nut (14).

3. The dyeing process according to claim 1, wherein A sealing gasket (8) is provided between the star cage yarn bundle frame seat (3) and the yarn bundle grate (10), and the circulation pipeline (4) is connected to the drainage pipe (39).

4. The dyeing process according to claim 1, wherein The tension-free yarn bundles described in step 1) weigh 0.5-2 kg each.

5. The dyeing process according to claim 1, wherein In the pretreatment + dyeing process described in step 4), the scouring and bleaching working solutions are 2-4 g / L of scouring agent, 2-4 g / L of caustic soda, and 4-8 g / L of hydrogen peroxide, the pretreatment temperature is 100-110°C, and the holding time is 30-60 min; the dyeing process adopts an immersion dyeing method, the added salt is 10-80 g / L, and the dye is evenly added to the dyeing machine main cylinder (17) at 40-50°C within 10-30 min, the dye concentration is 0.1-8% of the total weight of the tension-free yarn bundle, the power of the circulation pump (6) is 80-95% of the rated power, the dye liquor circulation direction adopts a non-reversing method to ensure that the yarn bundle is fully in contact with the dye liquor, the temperature is raised to 60-90°C, the heat is kept for 20-45 min, soda ash is added, the soda ash concentration is 5-20 g / L, and the color is fixed for 40-60 min.

6. The dyeing process according to claim 5, wherein In the one-bath pretreatment whitening process of step 4), the scouring, bleaching and whitening working solutions are 2-4 g / L of refining agent, 2-4 g / L of caustic soda, 4-8 g / L of hydrogen peroxide and 0.4-0.7% of whitening agent.

7. The dyeing process according to claim 1, wherein In the pre-treatment whitening one-bath process described in step 4), the temperature is 100-110°C, the holding time is 30-60 minutes, the power of the circulation pump (6) is 80-95% of the rated power, and the working liquid circulation direction adopts a non-reversing method to ensure that the yarn bundle is fully in contact with the working liquid.

8. The dyeing process according to claim 1, characterized in that In step 1), the integrated chuck tube (33) comprises an outer tube (40) and an inner fixed tube (35), wherein the outer tube (40) has a smooth surface. The integrated chuck tube (33) is divided into a front end and a rear end. An annular sock plugging groove (34) is provided between the inner fixed tube (35) and the outer tube (40) at the rear end; a plurality of arc-shaped grooves (36) are provided between the sock plugging groove (34) and the outer tube (40); and a plurality of trapezoidal grooves (37) are provided between the inner fixed tube (35) and the outer tube (40) at the front end.

9. The dyeing process according to claim 1, wherein Step 7) The telescopic yarn support frame includes a main rod (19), a hollow cavity (30) is provided in the center of the main rod (19), a front fixed head (31) and a rear fixed head (32) are provided at both ends of the main rod (19), a spring (23) is provided inside the front fixed head (31), the bottom of the spring (23) is in contact with the annular sliding sleeve (25), an adjustment hole (28) is provided on the main rod (19), an adjustment slider (26) is provided above the adjustment hole (28), a strip sliding hole (2601) is provided on the adjustment slider (26), a locking bolt (27) passes through the strip sliding hole (2601) and the adjustment hole (28) to fix the adjustment slider (26) on the main rod (19), and the adjustment One end of the slider (26) is in contact with the annular sleeve (25), and the telescopic yarn support frame further includes a plurality of tension bars (20) telescopically connected to the main rod (19). The rear fixed head (32) is connected to the tension bar (20) through a fixed bracket (21), and the fixed bracket (21) is connected to the rear fixed head (32) and the tension bar (20) in a hinged manner. The annular sleeve (25) is connected to the tension bar (20) through a movable bracket (22), and the movable bracket (22) is hinged to the annular sleeve (25). A slide groove (29) is provided on the tension bar (20), and the movable bracket (22) is connected to the tension bar (20) through an adjustment shaft passing through the slide groove (29).

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