Full-process open-width pad dyeing device and process for tension-sensitive fabric

Abstract

The invention discloses a tension-sensitive fabric full-process open-width pad dyeing device and process, and relates to the technical field of tension-sensitive fabric open-width pad dyeing, the tension-sensitive fabric full-process open-width pad dyeing device comprises a support, a control module and a material rolling assembly on the upper side of the support, the material rolling assembly is used for fabric conveying and outwards rolling and removing dye in a fabric in the conveying process, and the control module is used for controlling the control module. The device comprises a support, a material rolling assembly is arranged on the support, a dip dyeing mechanism is arranged on the lower portion of the support, the dip dyeing mechanism comprises a connecting assembly, and the connecting assembly is used for conducting dip dyeing on fabric input into the material rolling assembly and recycling dye discharged by the material rolling assembly. The recovered dye acts on the surface of the fabric in a uniform strip form after bubbling and penetrates through the fabric under the attaching guide of the wrapping shell to complete internal dye replacement, and the device has the advantages that instantaneous resistance generated by liquid in the fabric in the extrusion process can be reduced, and stable control over the tension of the fabric is achieved cooperatively.

Description

Technical Field

[0001] This invention relates to the field of flat-width pad-dyeing technology for tension-sensitive fabrics, specifically to a full-process flat-width pad-dyeing device and process for tension-sensitive fabrics. Background Technology

[0002] As one of the most widely used continuous dyeing methods in the textile dyeing and finishing field, the flat-width pad dyeing process usually involves the fabric going through immersion, padding and subsequent treatment processes in sequence, so that the dye can fully penetrate into the fabric and obtain a stable dyeing effect. In the existing flat-width pad dyeing production line, the fabric is generally first put into the dye bath to complete the immersion, and then the excess dye is discharged between the rollers by mechanical extrusion in order to control the liquid content of the fabric and ensure the uniformity of dyeing. In the above process, the extrusion of the rollers is a key link that affects the stability of the fabric operation and the quality of the finished product. After the fabric is dyed, the gaps between the fibers and the inside of the fabric structure are usually filled with dye liquid. Since the dye liquid is incompressible, when the fabric is squeezed between the rollers, a large amount of liquid needs to be discharged from the inside of the fabric in a very short time, which can easily form a large instantaneous liquid resistance in the roller area, thus causing the fabric to bear a sudden mechanical load in this area. For conventional heavy or tensile fabrics, the aforementioned liquid resistance and the resulting tension fluctuations can be tolerated by process parameters within a certain range. However, with the widespread application of functional fibers, microfibers, lightweight fabrics, and composite fabrics, more and more fabrics are showing high sensitivity to changes in running tension. Under the existing pad dyeing process conditions, these tension-sensitive fabrics are prone to tension fluctuations when passing through the pads due to excessive instantaneous squeezing resistance, which in turn leads to problems such as fabric stretching deformation, structural damage, width instability, wrinkling, and even local breakage, seriously affecting dyeing quality and finished product consistency. In the prior art, the following improvement methods are usually adopted to reduce the extrusion load at the roll: for example, by reducing the roll force, reducing the linear speed, adjusting the roll covering material, or adding guide rollers before and after the roll. However, the above methods are mostly passive adjustments to the roll parameters or operating conditions. On the one hand, they are prone to insufficient drainage, fluctuations in liquid content, or uneven dyeing. On the other hand, when faced with high fabric liquid content, changes in dye viscosity, or fluctuations in operating conditions, it is still difficult to effectively suppress the resistance peak generated at the moment of liquid extrusion. Furthermore, in the existing flat-width pad dyeing process, the fabric often enters the pad area directly after dyeing, lacking a means of transitional control over the liquid state inside the fabric. This causes the fabric to always enter the high-pressure extrusion zone in a state of "high liquid filling and low compressibility," which objectively amplifies the negative impact of liquid incompressibility on the pad extrusion process. At the same time, traditional tension control relies mainly on setting the tension of the entire line or simple guide roller adjustment, making it difficult to provide real-time and local tension compensation for changes in pad extrusion resistance. This further exacerbates the instability risk of tension-sensitive fabrics during continuous operation. Therefore, how to effectively manage the stress state of tension-sensitive fabrics throughout the entire process of flat-width pad dyeing without sacrificing dyeing uniformity and production efficiency, especially before the fabric completes dyeing and enters the roller extrusion, reducing the instantaneous resistance generated by the liquid inside the fabric to the extrusion process, and synergistically achieving stable control of fabric tension, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0003] The purpose of this invention is to provide a full-process flat-width dyeing apparatus and process for tension-sensitive fabrics to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a full-process flat-width dyeing device for tension-sensitive fabrics, including a support frame and a control module, as well as a padding assembly on the upper side of the support frame; The rolling assembly is used for fabric conveying and for removing dye from the fabric during transport. The lower part of the support is provided with a dyeing mechanism, which includes: A connecting assembly for dyeing the fabric fed into the padding assembly and for recovering the dye discharged from the padding assembly; The tension adjustment mechanism includes a lifting assembly and a pressure roller on the lifting assembly. The fabric passes under the pressure roller. The tension adjustment mechanism is used to adjust the tension of the fabric by being driven by the lifting assembly. A displacement mechanism is used to remove dye from inside the fabric. The displacement mechanism includes a fixed component and a foaming machine and a nozzle on the fixed component. The foaming machine is used to extract the dye and discharge it through the nozzle, and the nozzle is located on one side of the fabric movement path. The nozzle is used to spray foam onto the fabric. An extrusion mechanism is located below the rolling assembly. The extrusion mechanism includes a transmission assembly and a pressure plate. The transmission assembly is used to support the deflection of the pressure plate relative to the rolling assembly.

[0005] According to the above technical solution, the rolling assembly includes: The main roll and the elastic roll are located in the middle of the upper side of the support, and the elastic roll is located below the main roll. The elastic roll is connected to the outer wall of the support through an elastic support rod. The bracket includes a first roll pair and a second roll pair, respectively located on the left and right sides of the upper part, as well as a cylinder drive pair for connecting the bracket with the first roll pair and the second roll pair. The first roll pair and the second roll pair are each provided with a cylinder drive pair on the side near the bracket. The cylinder drive pair is used to adjust the distance between the first roll pair, the second roll pair and the bracket. The left side of the bracket is located below the first roller pair and is rotatably connected to a guide roller via a bearing. The guide roller is used to guide the fabric input to the first roller pair.

[0006] According to the above technical solution, the connection component includes: The dyeing pool and two bottom rollers symmetrically arranged inside the dyeing pool are provided. The outer wall of the dyeing pool is fixedly connected to the left side of the outer wall of the support. The bottom rollers are located in the middle of the dyeing pool, and both ends of the bottom rollers are rotatably connected to the inner wall of the dyeing pool through bearings. The bottom rollers are used to guide the fabric inside the dyeing pool so that the fabric passes through the bottom of the dye inside the dyeing pool. A liquid pipe is located on the left side of the dyeing tank. One end of the liquid pipe is fixedly connected to the outer wall of the dyeing tank, and the inside of the dyeing tank is connected to the outside through the liquid pipe. Two baffles are symmetrically arranged, located on the left and right sides below the elastic roller, respectively. Both ends of the two baffles are fixedly connected to the outer wall of the support. The upper side of the baffles is provided with an inclined surface to guide the dye dripping from the main roller and the lower side of the elastic roller.

[0007] According to the above technical solution, the lifting assembly includes: There are two drive motors, which are respectively located on the front and rear sides of the dyeing tank. The outer wall of the drive motor is fixedly connected to the outer wall of the dyeing tank. A threaded rod is fixedly connected to the output end of the drive motor. A threaded cylinder is threadedly connected to the outer wall of the threaded rod. A connecting seat is fixedly connected to the outer side of the threaded cylinder. A pressure detection module is fixedly connected to the upper surface of the connecting seat near the pressure roller. Both ends of the pressure roller are rotatably connected to connecting arms via bearings. The upper end of the connecting arm is slidably connected to the outer wall of the connecting seat, and the lower surface of the upper end of the connecting arm is connected to the upper fixing rod of the pressure detection module.

[0008] According to the above technical solution, the drive motor and the pressure detection module are both electrically connected to the control module. The drive motor is used to drive the threaded rod to rotate so that the threaded cylinder can be raised and lowered. The pressure detection module is used to detect the pressure between the connecting arm and the connecting seat. The control module controls the drive motor to drive the threaded rod to rotate based on the pressure data fed back by the pressure detection module.

[0009] According to the above technical solution, the fixing component includes: A liquid tank is located on the lower side of the middle of two baffles, and the front and rear sides of the liquid tank are fixedly connected to the outer wall of the support for loading dye; The reflector is a plate-shaped structure with a central protrusion and downward slope on both sides. The reflector is set in the middle of the inner side of the liquid tank. The outer wall of the reflector is fixedly connected to the inner wall of the liquid tank. The reflector helps the dripping dye to splash onto the inner wall of the liquid tank. There are two support arms, which are respectively located at the front and rear of the left side of the liquid tank. The outer wall of the support arm is hinged to the outer wall of the liquid tank by a torsion spring. A connecting pipe is fixedly connected to the left end of the support arm, and one end of the connecting pipe is fixedly connected to the output end of the foaming machine. Several nozzles are provided on the left side of the connecting pipe, and the output end of the nozzles faces the left side. Furthermore, a protective shell is fixedly connected to the left end of the support arm, and the protective shell is located on the left side of the nozzle.

[0010] According to the above technical solution, the outer wall of the foaming machine is fixedly connected to the outer wall of the support, the input end of the foaming machine is connected to the inside of the liquid tank, the foaming machine is controlled by the control module to extract dye from the liquid tank and foam it, and then output it through the nozzle. The left side of the packaging shell has an arc-shaped structure, and a strip-shaped opening is provided on the left side of the packaging shell.

[0011] According to the above technical solution, the transmission assembly includes an electric telescopic rod, one end of which is hinged to a baffle. The transmission assembly also includes a rocker arm, one end of which is hinged to the outer wall of the bracket. The other end of the rocker arm is fixedly connected to a deflection rod, the outer wall of which is hinged to one end of the electric telescopic rod and fixedly connected to the lower side of the pressure plate.

[0012] According to the above technical solution, the outer wall of the pressing sheet has an arc-shaped structure, and the pressing sheet is located on the lower left side of the elastic roller. The outer wall of the elastic roller is a layer of rubber material, and the pressing sheet is made of metal.

[0013] A full-process flat-width pad-dyeing process for tension-sensitive fabrics includes the following steps: S1. Dyeing and Path Extension Steps: The fabric is introduced into a dye bath filled with dye. After the fabric is fully dyed under the bottom roller, it is output through the upward extension path formed between the guide roller and the first roller pair. During the upward movement of the fabric, the free dye attached to the outer wall of the fabric drips off naturally, thereby reducing the initial liquid content of the fabric before entering the padding stage. S2, graded progressive rolling step: The fabric is passed through the first rolling pair, the rolling zone composed of the main rolling roll and the elastic roll, and the second rolling pair in sequence, and the rolling pressure of each rolling zone is increased step by step, so as to change the dye discharge process inside the fabric from a single high-resistance extrusion to a multi-stage low-resistance release, and avoid tension fluctuations caused by excessive instantaneous liquid discharge resistance. S3, Tension Closed-Loop Adjustment Step: Before the fabric enters the padding zone, the fabric passes under the pressure roller, and the lifting force of the fabric on the pressure roller is detected in real time by the pressure detection module. The drive motor drives the threaded rod to adjust the height of the pressure roller, thereby compensating for the fabric's travel stroke and keeping the fabric within the preset safe tension range throughout the entire padding and dyeing process. S4. Foam replacement and load reduction step: The dye discharged from the rolling step is recovered and collected in the liquid tank. After being foamed by the foaming machine, the dye foam is sprayed onto the fabric surface through the nozzle. Under the guidance of the wrapping shell, the foam passes through the fabric, replacing the excess dye inside the fabric and forming a gas-liquid mixture inside the fabric, thereby reducing the drainage resistance caused by the incompressibility of the liquid in the subsequent rolling stage. S5. Directional drainage and compression compensation steps: When the fabric passes between the main roll and the elastic roll, the compression mechanism drives the pressure plate to apply pressure to the elastic roll locally, causing the elastic roll to produce a controllable concave deformation, guiding the foamed dye inside the fabric to be discharged in a specific direction, and using the elastic rebound characteristics of the elastic roll to avoid irreversible pressure damage to the fabric, thereby further stabilizing the stress state of the roll area and suppressing tension fluctuations.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. By setting up a dyeing pool, bottom roller, guide roller and first roller pad, the fabric enters the padding zone through an elongated upward path after dyeing. Gravity is used to release the free dye attached to the outer wall of the fabric in advance. With the help of a multi-stage progressive padding structure, the high liquid resistance drainage process that was originally concentrated at a single roller is dispersed into a multi-stage low resistance drainage process, which significantly reduces the instantaneous squeezing resistance of the roller and reduces the risk of tension slippage of tension-sensitive fabrics in the initial stage of padding. 2. By setting up a tension adjustment mechanism and its internal pressure roller, pressure detection module and drive motor, a tension closed-loop adjustment mechanism based on the actual stress state of the fabric is constructed. This enables the fabric to automatically complete stroke compensation and tension correction based on real-time pressure feedback before entering the foam replacement and rolling process, avoiding excessive stretching, local deformation or structural damage of the fabric caused by changes in downstream drainage resistance, and improving the safety and stability of continuous operation of tension-sensitive fabrics.

[0015] 3. By setting up a replacement mechanism and a foam spraying structure consisting of a liquid tank, a foaming machine, a nozzle, and a wrapping shell, the recovered dye is foamed and applied to the fabric surface in a uniform strip form. Under the guidance of the wrapping shell, it passes through the fabric to complete the internal dye replacement. This changes the fabric from a highly liquid-filled state to a gas-liquid mixed state before entering the high-pressure rollers. From a mechanical point of view, this reduces the squeezing resistance caused by the incompressibility of the liquid and provides an effective buffer for the subsequent rolling process.

[0016] 4. By setting up a squeezing mechanism and its synergistic structure including an electric telescopic rod, a pressure plate and an elastic roller, the elastic roller can generate controllable concave deformation in a local area, thereby guiding the foamed dye inside the fabric to be discharged in a specific direction, avoiding the accumulation of liquid in the roller gap and the formation of pressure concentration. At the same time, the rebound characteristics of the elastic roller's rubber coating layer and the elastic support rod are used to prevent irreversible pressure damage to the fabric, further stabilizing the stress state in the roller area and suppressing tension fluctuations. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the rolling assembly structure of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial structural diagram of the dyeing mechanism of the present invention; Figure 5 This is a schematic diagram of the dyeing mechanism of the present invention; Figure 6 This is a schematic diagram of the dye bath structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the dye bath of the present invention; Figure 8 This is a schematic diagram of the tension adjustment mechanism of the present invention; Figure 9 This is a schematic diagram of the replacement mechanism structure of the present invention; Figure 10 This is a schematic cross-sectional view of the replacement mechanism of the present invention; Figure 11 This is a schematic diagram of the extrusion mechanism of the present invention; In the diagram: 1. Support; 2. First roll pair; 3. Second roll pair; 4. Cylinder drive pair; 5. Main roll; 6. Guide roll; 7. Elastic roll; 9. Elastic support rod; 8. Dyeing facility; 801. Dyeing tank; 802. Liquid pipe; 804. Baffle; 807. Bottom roller; 803. Tension adjustment mechanism; 301. Pressure roller; 302. Drive motor; 303. Threaded rod; 304. Threaded cylinder; 305. Connecting seat; 306. Pressure detection module; 307. Connecting arm; 805. Replacement mechanism; 501. Liquid tank; 502. Reflector; 503. Aerator; 504. Support arm; 505. Nozzle; 506. Connecting pipe; 507. Encasing shell; 806. Extrusion mechanism; 601. Electric telescopic rod; 602. Rocker arm; 603. Deflection rod; 604. Pressing plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-5 The present invention provides a technical solution: a full-process flat-width dyeing device for tension-sensitive fabrics, including a support 1 and a control module, as well as a padding assembly on the upper side of the support 1; The padding assembly is used for fabric conveying and removes dye from the fabric during transport. The rolling assembly includes: a main roll 5 and an elastic roll 7. The main roll 5 is located in the middle of the upper side of the support 1, and the elastic roll 7 is located below the main roll 5. The elastic roll 7 is connected to the outer wall of the support 1 through an elastic support rod 9. The lower part of the support 1 is provided with a dyeing mechanism 8, which includes: A connecting assembly is used to impregnate the fabric fed into the padding assembly and to recover the dye discharged from the padding assembly. The support 1 is provided with a first roll pair 2 and a second roll pair 3 on the upper left and right sides respectively, and a cylinder drive pair 4 for connecting the support 1 with the first roll pair 2 and the second roll pair 3. The first roll pair 2 and the second roll pair 3 are each provided with a cylinder drive pair 4 on the side close to the support 1. The cylinder drive pair 4 is used to adjust the distance between the first roll pair 2, the second roll pair 3 and the support 1. The left side of the bracket 1 is located below the first roller pair 2 and is rotatably connected to the guide roller 6 via a bearing. The guide roller 6 is used to guide the fabric input into the first roller pair 2. The connection components include: The dyeing pool 801 and two bottom rollers 807 symmetrically arranged inside the dyeing pool 801 are provided. The outer wall of the dyeing pool 801 is fixedly connected to the left side of the outer wall of the support 1. The bottom rollers 807 are located in the middle of the dyeing pool 801, and the two ends of the bottom rollers 807 are rotatably connected to the inner wall of the dyeing pool 801 through bearings. The bottom rollers 807 are used to guide the fabric inside the dyeing pool 801 so that the fabric passes through the bottom of the dye inside the dyeing pool 801. Liquid pipe 802 is located on the left side of dyeing tank 801. One end of liquid pipe 802 is fixedly connected to the outer wall of dyeing tank 801. The interior of dyeing tank 801 is connected to the outside through liquid pipe 802. Two baffles 804 are symmetrically arranged. The two symmetrically arranged baffles 804 are located on the left and right sides below the elastic roller 7, respectively. The front and rear ends of the two baffles 804 are fixedly connected to the outer wall of the bracket 1. The upper side of the baffle 804 is provided with an inclined surface for guiding the dye dripping from the lower side of the main roller 5 and the elastic roller 7, as well as the replacement mechanism 805. In this embodiment, after the device is installed, the first roller assembly, the second roller assembly, the main roller 5, and the elastic roller 7 are driven to rotate synchronously by the production line power output device, and dye is injected into the dyeing tank 801 so that the dye liquid level is at least above the bottom roller 807. Then, the position of the guide roller 6 is adjusted so that it is located on the upper right side of the right bottom roller 807, and at the same time, the first roller assembly is adjusted to be located on the upper left side of the guide roller 6. Thus, before entering the roller assembly, the fabric passes under the bottom roller 807, the right side of the guide roller 6, and moves up to the first roller assembly. During this stroke, the excess dye attached to the outer wall of the fabric drips off naturally under the action of gravity. After the fabric enters the first roller pad 2, it is subjected to light rolling for primary liquid discharge. Then it enters the main roller 5 and the elastic roller 7 for secondary extrusion, and finally enters the second roller pad 3 for tertiary extrusion. The rolling pressure of the three stages increases step by step to avoid the problem of excessive instantaneous liquid resistance caused by too much internal dye in the fabric during a single strong extrusion. During the rolling process, the dye squeezed out by the main roller 5 and the elastic roller 7 drips downward and is guided by the inclined surface on the upper side of the baffle 804 to collect inside the replacement mechanism 805. After completing multi-stage rolling, the fabric completes the dyeing and draining process while maintaining a flat width. The drained dye replacement mechanism 805 is connected for recycling. Through the above-mentioned graded rolling and dyeing synergistic setting, the liquid draining process of the fabric during the entire rolling and dyeing process is made smoother, effectively reducing the peak liquid resistance at the rollers, avoiding tension fluctuations caused by sudden changes in resistance, and improving the overall dyeing stability and structural integrity of tension-sensitive fabrics.

[0020] Example 2: Please refer to Figure 1-8 Based on Embodiment 1, the present invention provides a technical solution: a tension adjusting mechanism 803, including a lifting assembly and a pressure roller 301 on the lifting assembly, wherein the fabric passes under the pressure roller 301, and the tension adjusting mechanism 803 is used to adjust the fabric tension by being driven by the lifting assembly. The lifting assembly includes: There are two drive motors 302, which are respectively located on the front and rear sides of the dyeing tank 801. The outer wall of the drive motor 302 is fixedly connected to the outer wall of the dyeing tank 801. A threaded rod 303 is fixedly connected to the output end of the drive motor 302. A threaded cylinder 304 is threadedly connected to the outer wall of the threaded rod 303. A connecting seat 305 is fixedly connected to the outer side of the threaded cylinder 304. A pressure detection module 306 is fixedly connected to the upper surface of the connecting seat 305 near the pressure roller 301. Both the front and rear ends of the pressure roller 301 are rotatably connected to the connecting arm 307 through bearings. The upper end of the connecting arm 307 is slidably connected to the outer wall of the connecting seat 305, and the lower surface of the upper end of the connecting arm 307 is connected to the upper fixing rod of the pressure detection module 306. Both the drive motor 302 and the pressure detection module 306 are electrically connected to the control module. The drive motor 302 is used to drive the threaded rod 303 to rotate so that the threaded cylinder 304 can be raised or lowered. The pressure detection module 306 is used to detect the pressure between the connecting arm 307 and the connecting seat 305. The control module controls the drive motor 302 to drive the threaded rod 303 to rotate based on the pressure data fed back by the pressure detection module 306. In this embodiment, after completing the pre-dyeing and multi-stage rolling preparation of Embodiment 1, the fabric passes through the tension adjustment mechanism 803 set above the dyeing tank 801 before entering the rolling assembly. The fabric passes under the pressure roller 301 and generates an upward lifting force on the pressure roller 301 during operation. When the fabric is running, the pressure roller 301 transmits the force to the connecting seat 305 through the connecting arm 307. The pressure detection module 306 detects the pressure change between the connecting arm 307 and the connecting seat 305 in real time and feeds the pressure signal back to the control module. According to the pressure feedback signal, the control module controls the drive motor 302 to drive the threaded rod 303 to rotate, so that the threaded cylinder 304 drives the connecting seat 305 to adjust the height, thereby changing the height position of the pressure roller 301 relative to the fabric and realizing the dynamic adjustment of the fabric running tension. When the fabric tension approaches or exceeds the set safety threshold, the tension adjustment mechanism 803 can release or compensate the fabric stroke in a timely manner, so that the fabric always operates within the safe tension range. This adjustment process works in conjunction with the subsequent padding assembly to stabilize the tension state of the fabric before entering the multi-stage padding zone, avoiding fabric deformation, wrinkling or structural damage caused by tension mismatch between the preceding and following processes. It is especially suitable for continuous flat-width padding and dyeing operations of tension-sensitive fabrics.

[0021] Example 3: Please refer to Figure 1-10Based on Embodiments 1 and 2, the present invention provides a technical solution: a replacement mechanism 805, which is used to remove dye from inside the fabric. The replacement mechanism 805 includes a fixing component and a foaming machine 503 and a nozzle 505 on the fixing component. The foaming machine 503 is used to extract dye and discharge it through the nozzle 505, and the nozzle 505 is located on one side of the fabric movement path. The nozzle 505 is used to spray foam onto the fabric. The fixing component includes: Liquid tank 501 is located on the lower side of the middle of the two baffles 804, and the front and rear sides of liquid tank 501 are fixedly connected to the outer wall of bracket 1 for loading dye; The reflector 502 is a plate-shaped structure with a central protrusion and downward tilting sides. The reflector 502 is located in the middle of the inner side of the liquid tank 501. The outer wall of the reflector 502 is fixedly connected to the inner wall of the liquid tank 501. The reflector 502 helps the dripping dye to splash onto the inner wall of the liquid tank 501. There are two support arms 504. The two support arms 504 are respectively located at the front and rear of the left side of the liquid tank 501. The outer wall of the support arm 504 is hinged to the outer wall of the liquid tank 501 by a torsion spring. A connecting pipe 506 is fixedly connected to the left end of the support arm 504. One end of the connecting pipe 506 is fixedly connected to the output end of the foaming machine 503. Several nozzles 505 are provided on the left side of the connecting pipe 506, with the output end of the nozzles 505 facing the left. Furthermore, a protective shell 507 is fixedly connected to the left end of the support arm 504, and the protective shell 507 is located to the left of the nozzle 505; The outer wall of the foaming machine 503 is fixedly connected to the outer wall of the bracket 1. The input end of the foaming machine 503 is connected to the inside of the liquid tank 501. The foaming machine 503 is controlled by the control module to extract the dye inside the liquid tank 501 and output it through the nozzle 505. The left side of the wrapping shell 507 has an arc-shaped structure and a strip-shaped opening is provided on the left side of the wrapping shell 507. In this embodiment, after the fabric is dyed and the initial tension is adjusted, the fabric enters the replacement mechanism 805 located below the rolling assembly; On the underside of the main roller 5 and the elastic roller 7, a large amount of dye discharged from the fabric by the extrusion drips onto the reflector plate 502. The reflector plate 502 splashes the dye onto the inner wall of the liquid tank 501, and at the same time breaks up the foam floating in the liquid tank 501 to ensure that the liquid composition inside the liquid tank is uniform. Under the control of the control module, the foaming machine 503 extracts the pre-loaded and recovered dye liquid from the liquid tank 501 and performs foaming treatment to form fine foam. Then, it is transported to multiple nozzles 505 through the connecting pipe 506 and discharged. The nozzles 505 are set facing the side of the fabric movement path. The wrapping shell 507 shapes the sprayed foam so that the foam is uniformly covered on the fabric surface in strip shape. Since the support arm 504 is connected to the liquid tank 501 through the torsion spring, the wrapping shell 507 adheres to the running fabric surface under the elastic force of the torsion spring. During fabric operation, the foam passes through the fabric under the guidance of the encapsulation shell 507 and stays on the other side of the fabric, replacing the excess dye inside the fabric and creating a gas-liquid mixture inside the fabric. Subsequently, the fabric passes through the guide roller 6, and the foam attached to the outer wall of the fabric is squeezed and bursts, while a certain amount of bubbles are retained inside the fabric. Thus, in the subsequent rolling and tension adjustment process, the bubbles provide a buffer space for the flow of dye inside the fabric, significantly reducing the resistance when the liquid is discharged and improving the stability of the fabric in the tension adjustment stage. Furthermore, since the fabric is filled with air bubbles and the outer wall of the casing 507 is in contact with the fabric, when the tension adjustment mechanism 803 adjusts the fabric tension, the air bubbles inside the fabric can provide a buffer for changes in fiber structure, and the casing 507 can push the fabric to compensate for the stroke. Both of these factors help to avoid the extent to which the fabric is affected during the tension adjustment stage.

[0022] Example 4: Please refer to Figure 1-11 Based on Embodiments 1, 2, and 3, the present invention provides a technical solution: an extrusion mechanism 806, located at the lower part of the rolling assembly, the extrusion mechanism 806 includes a transmission assembly and a pressing plate 604, the transmission assembly is used to support the pressing plate 604 to deflect relative to the rolling assembly, the transmission assembly includes an electric telescopic rod 601, one end of the electric telescopic rod 601 is hinged to the baffle 804, the transmission assembly also includes a rocker arm 602, one end of the rocker arm 602 is hinged to the outer wall of the bracket 1, the other end of the rocker arm 602 is fixedly connected to a deflection rod 603, the outer wall of the deflection rod 603 is hinged to one end of the electric telescopic rod 601, and the outer wall of the deflection rod 603 is fixedly connected to the lower side of the pressing plate 604; The outer wall of the tablet 604 has an arc-shaped structure, and the tablet 604 is located on the lower left side of the elastic roller 7. The outer wall of the elastic roller 7 is a layer of rubber material, and the tablet 604 is made of metal. In this embodiment, a squeezing mechanism 806 is set up to further optimize the drainage path in the area between the main roller 5 and the elastic roller 7, which is the area with the largest amount of fabric drainage. During the fabric operation, when the control module detects a tendency for dye accumulation in the left area between the main roller 5 and the elastic roller 7, causing an abnormality in the tension detection in the subsequent process between the main roller 5 and the elastic roller 7, it controls the electric telescopic rod 601 to move, causing the deflection rod 603 to drive the rocker arm 602 to deflect downward, thereby driving the pressure plate 604 to locally squeeze the outer wall of the elastic roller 7. Since the outer wall of the elastic roller 7 is made of rubber-coated material and is provided with elastic support by the elastic support rod 9, under the action of the pressure plate 604, the lower left area of ​​the elastic roller 7 undergoes controllable indentation deformation. This local deformation provides a smoother flow channel for dyes containing air bubbles inside the fabric, allowing the liquid to be discharged preferentially from the left side area, avoiding the accumulation of liquid in the roller gap and causing instantaneous pressure concentration. At the same time, the elastic rebound of the elastic roller 7 avoids irreversible excessive pressure damage to the fabric. After the directional drainage is completed, the electric telescopic rod 601 resets, and the elastic roller 7 returns to its original shape. Through this compression compensation and directional drainage, the stress state of the roller area is further stabilized, the risk of tension fluctuation is reduced, and the dyeing quality of tension-sensitive fabrics under high liquid load conditions is improved.

[0023] A full-process flat-width pad-dyeing process for tension-sensitive fabrics includes the following steps: S1. Dyeing and Path Extension Steps: The fabric is introduced into the dye bath 801 filled with dye. After the fabric is fully dyed under the bottom roller 807, it is output through the upward extension path formed between the guide roller 6 and the first roller pad 2. During the upward movement of the fabric, the free dye attached to the outer wall of the fabric drips off naturally, thereby reducing the initial liquid content of the fabric before entering the padding stage. S2, graded progressive rolling step: the fabric is passed sequentially through the rolling zone consisting of the first rolling pair 2, the main rolling roll 5 and the elastic roll 7, and the second rolling pair 3, and the rolling pressure of each rolling zone is gradually increased to change the dye discharge process inside the fabric from a single high-resistance extrusion to a multi-stage low-resistance release, avoiding tension fluctuations caused by excessive instantaneous discharge resistance. S3, Tension Closed-Loop Adjustment Step: Before the fabric enters the padding zone, the fabric passes under the pressure roller 301, and the pressure detection module 306 detects the lifting force of the fabric on the pressure roller in real time. The drive motor 302 drives the threaded rod 303 to adjust the height of the pressure roller 301, thereby compensating for the fabric's travel stroke and keeping the fabric within the preset safe tension range throughout the entire padding and dyeing process. S4. Foam replacement and load reduction step: The dye discharged from the rolling step is recovered and collected in the liquid tank 501. After being foamed by the foaming machine 503, the dye foam is sprayed onto the fabric surface through the nozzle 505. Under the guidance of the wrapping shell 507, the foam passes through the fabric, replacing the excess dye inside the fabric and forming a gas-liquid mixture inside the fabric, thereby reducing the drainage resistance caused by the incompressibility of the liquid in the subsequent rolling stage. S5. Directional drainage and compression compensation steps: When the fabric passes between the main roller 5 and the elastic roller 7, the compression mechanism 806 drives the pressure plate 604 to apply local pressure to the elastic roller 7, causing the elastic roller to produce controllable concave deformation, guiding the foamed dye inside the fabric to be discharged in a specific direction, and using the elastic rebound characteristics of the elastic roller to avoid irreversible pressure damage to the fabric, thereby further stabilizing the stress state of the roller area and suppressing tension fluctuations.

[0024] This solution provides a full-process flat-width pad-dyeing device and process for tension-sensitive fabrics. By setting a padding assembly on a support 1 and an immersion dyeing mechanism 8 below it, the fabric is first fully immersed in the dye bath 801 by the bottom roller 807, and then enters the padding assembly through the guide roller 6, forming an upward extension path. This utilizes gravity to pre-release the free dye from the outer wall of the fabric. Simultaneously, through a multi-stage progressive arrangement of the first padding pair 2, the main padding roller 5 and the elastic roller 7, and the second padding pair 3, the dye inside the fabric is discharged in stages, avoiding excessive liquid resistance from a single squeeze. Before padding... The tension adjustment mechanism 803 performs real-time detection and closed-loop adjustment of the fabric running tension. At the same time, the replacement mechanism 805 sprays the recycled dye onto the fabric surface after foaming and passes through the fabric to complete the internal dye replacement, so that the fabric forms a gas-liquid mixed state to reduce the extrusion resistance. In addition, an extrusion mechanism 806 is set between the main roller 5 and the elastic roller 7 to guide the dye to be discharged in a directional manner and, together with the elastic support of the elastic support rod 9, further stabilizes the stress state of the roller area, thereby achieving low resistance, low tension fluctuation and high stability operation of tension-sensitive fabrics throughout the entire flat-width dyeing process.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A full-process flat-width dyeing device for tension-sensitive fabrics, characterized in that: Includes a support (1) and a control module, as well as a rolling assembly on the upper side of the support (1); The rolling assembly is used for fabric conveying and for removing dye from the fabric during transport. The lower part of the support (1) is provided with a dyeing mechanism (8), the dyeing mechanism (8) includes: A connecting component is used to impregnate the fabric fed into the padding assembly and to recover the dye discharged from the padding assembly. The tension adjustment mechanism (803) includes a lifting assembly and a pressure roller (301) on the lifting assembly. The fabric passes under the pressure roller (301). The tension adjustment mechanism (803) is used to adjust the tension of the fabric by being driven by the lifting assembly. The replacement mechanism (805) for removing dye from inside the fabric includes a fixing component and a foaming machine (503) and a nozzle (505) on the fixing component. The foaming machine (503) is used to extract the dye and discharge it through the nozzle (505), and the nozzle (505) is located on one side of the fabric movement path. The nozzle (505) is used to spray foam onto the fabric. The extrusion mechanism (806), located below the rolling assembly, includes a transmission assembly and a pressure plate (604), the transmission assembly being used to support the deflection of the pressure plate (604) relative to the rolling assembly.

2. The tension-sensitive fabric full-process flat-width dyeing device according to claim 1, characterized in that: The rolling assembly includes: The main roll (5) and the elastic roll (7) are located in the middle of the upper side of the support (1), and the elastic roll (7) is located below the main roll (5). The elastic roll (7) is connected to the outer wall of the support (1) through the elastic support rod (9). The bracket (1) is provided with a first rolling pair (2) and a second rolling pair (3) on the upper left and right sides respectively, and a cylinder drive pair (4) for connecting the bracket (1) with the first rolling pair (2) and the second rolling pair (3). The cylinder drive pair (4) is used to adjust the distance between the first rolling pair (2), the second rolling pair (3) and the bracket (1). The left side of the bracket (1) is located below the first roller pair (2) and is rotatably connected to a guide roller (6) via a bearing. The guide roller (6) is used to guide the fabric input to the first roller pair (2).

3. The tension-sensitive fabric full-process flat-width dyeing device according to claim 2, characterized in that: The connection component includes: A dyeing pool (801) and two bottom rollers (807) symmetrically arranged inside the dyeing pool (801). The outer wall of the dyeing pool (801) is fixedly connected to the left side of the outer wall of the support (1). The bottom rollers (807) are arranged in the middle of the dyeing pool (801), and the two ends of the bottom rollers (807) are respectively rotatably connected to the inner wall of the dyeing pool (801) through bearings. The bottom rollers (807) are used to guide the fabric inside the dyeing pool (801) so that the fabric passes through the bottom of the dye inside the dyeing pool (801). Liquid pipe (802) is located on the left side of dyeing tank (801). One end of liquid pipe (802) is fixedly connected to the outer wall of dyeing tank (801). The inside of dyeing tank (801) is connected to the outside through liquid pipe (802). Two baffles (804) are symmetrically arranged. The two symmetrically arranged baffles (804) are located on the left and right sides of the lower side of the elastic roller (7), and the front and rear ends of the two baffles (804) are fixedly connected to the outer wall of the bracket (1). The upper side of the baffle (804) is provided with an inclined surface for guiding the dye dripping from the lower side of the main roller (5) and the elastic roller (7).

4. The tension-sensitive fabric full-process flat-width dyeing device according to claim 3, characterized in that: The lifting assembly includes: Two drive motors (302) are provided, and the two drive motors (302) are respectively located on the front and rear sides of the dyeing tank (801). The outer wall of the drive motor (302) is fixedly connected to the outer wall of the dyeing tank (801). A threaded rod (303) is fixedly connected to the output end of the drive motor (302). A threaded cylinder (304) is threadedly connected to the outer wall of the threaded rod (303). A connecting seat (305) is fixedly connected to the outer side of the threaded cylinder (304). A pressure detection module (306) is fixedly connected to the upper surface of the connecting seat (305) near the pressure roller (301). Both ends of the pressure roller (301) are rotatably connected to connecting arms (307) through bearings. The upper end of the connecting arm (307) is slidably connected to the outer wall of the connecting seat (305), and the lower surface of the upper end of the connecting arm (307) is connected to the upper fixing rod of the pressure detection module (306).

5. The tension-sensitive fabric full-process flat-width dyeing device according to claim 4, characterized in that: The drive motor (302) and the pressure detection module (306) are both electrically connected to the control module. The drive motor (302) is used to drive the threaded rod (303) to rotate so that the threaded cylinder (304) can be raised or lowered. The pressure detection module (306) is used to detect the pressure between the connecting arm (307) and the connecting seat (305). The control module controls the drive motor (302) to drive the threaded rod (303) to rotate according to the pressure data fed back by the pressure detection module (306).

6. The tension-sensitive fabric full-process flat-width dyeing device according to claim 5, characterized in that: The fixing component includes: A liquid tank (501) is set on the lower side of the middle of two baffles (804), and the front and rear sides of the liquid tank (501) are fixedly connected to the outer wall of the bracket (1) for loading dye; The reflector (502) is a plate-shaped structure with a central protrusion and downward tilting sides. The reflector (502) is located in the middle of the inner side of the liquid tank (501). The outer wall of the reflector (502) is fixedly connected to the inner wall of the liquid tank (501). The reflector (502) helps the dripping dye to splash onto the inner wall of the liquid tank (501). There are two support arms (504). The two support arms (504) are respectively located at the front and rear of the left side of the liquid tank (501). The outer wall of the support arm (504) is hinged to the outer wall of the liquid tank (501) by a torsion spring. A connecting pipe (506) is fixedly connected to the left end of the support arm (504). One end of the connecting pipe (506) is fixedly connected to the output end of the foaming machine (503). A plurality of nozzles (505) are provided on the left side of the connecting pipe (506), and the output end of the nozzles (505) faces to the left. Furthermore, a cover (507) is fixedly connected to the left end of the support arm (504), and the cover (507) is located to the left of the nozzle (505).

7. The tension-sensitive fabric full-process flat-width dyeing device according to claim 6, characterized in that: The outer wall of the foaming machine (503) is fixedly connected to the outer wall of the bracket (1). The input end of the foaming machine (503) is connected to the inside of the liquid tank (501). The foaming machine (503) is controlled by the control module to extract the dye inside the liquid tank (501) and then output it through the nozzle (505). The left side of the packaging shell (507) is an arc-shaped structure, and a strip-shaped opening is provided on the left side of the packaging shell (507).

8. The tension-sensitive fabric full-process flat-width dyeing device according to claim 7, characterized in that: The transmission assembly includes an electric telescopic rod (601), one end of which is hinged to a baffle (804). The transmission assembly also includes a rocker arm (602), one end of which is hinged to the outer wall of the bracket (1). The other end of the rocker arm (602) is fixedly connected to a deflection rod (603), the outer wall of which is hinged to one end of the electric telescopic rod (601), and the outer wall of which is fixedly connected to the lower side of the pressure plate (604).

9. A full-process flat-width dyeing apparatus for tension-sensitive fabrics according to claim 8, characterized in that: The outer wall of the pressure plate (604) is an arc-shaped structure, and the pressure plate (604) is located on the lower left side of the elastic roller (7). The outer wall of the elastic roller (7) is a rubber material layer, and the pressure plate (604) is made of metal.

10. A full-process flat-width pad-dyeing process for tension-sensitive fabrics, used in the full-process flat-width pad-dyeing apparatus for tension-sensitive fabrics as described in any of claims 1-9, characterized in that: Includes the following steps: S1. The fabric is introduced into the dye bath (801) filled with dye, and after the fabric is fully immersed in the dye under the bottom roller (807), it is output through the upward extension path formed between the guide roller (6) and the first roller pair (2). S2, the fabric is passed sequentially through the rolling zone consisting of the first rolling pair (2), the main rolling roll (5) and the elastic roll (7) and the second rolling pair (3), and the rolling pressure of each rolling zone is increased step by step; S3. Before the fabric enters the padding zone, the fabric passes under the pressure roller (301), and the pressure detection module (306) detects the lifting force of the fabric on the pressure roller in real time, controls the drive motor (302) to drive the threaded rod (303) to adjust the height of the pressure roller (301), and compensates for the fabric's running stroke, so that the fabric is always kept within the preset safe tension range throughout the entire padding process. S4. The dye discharged from the rolling step is recovered and collected in the liquid tank (501). After being foamed by the foaming machine (503), the dye foam is sprayed onto the fabric surface through the nozzle (505). Under the guidance of the wrapping shell (507), the foam passes through the fabric, replacing the excess dye inside the fabric and forming a gas-liquid mixture inside the fabric. S5. When the fabric passes between the main roller (5) and the elastic roller (7), the pressing plate (604) is driven by the extrusion mechanism (806) to apply pressure to the elastic roller (7) locally, so that the elastic roller produces a controllable concave deformation, and guides the foamed dye inside the fabric to be discharged in a specific direction.

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