High-temperature and high-pressure jet dyeing machine based on tension control and dyeing method

Abstract

The invention relates to the technical field of textile machinery, in particular to a high-temperature and high-pressure jet dyeing machine based on tension control and a dyeing method.The high-temperature and high-pressure jet dyeing machine comprises a cylinder body, a cloth lifting roller and an ejector, the cloth lifting roller and the ejector are arranged in the cylinder body, a tension detection roller and two clamping rollers are further arranged in the cylinder body, and the tension detection roller is located between the cloth lifting roller and the ejector; a tension detection roller and two clamping rollers are arranged in the cylinder body, the tension detection roller abuts against the fabric and is used for detecting the tension of the fabric before the fabric enters the ejector, a clamping conveying opening is formed between the two clamping rollers, and a rotary driving assembly and a transmission are further arranged outside the cylinder body. The tension of the fabric before entering the ejector is detected in real time through the tension detection roller, the tension of the fabric is adjusted in real time through the two clamping rollers, it is ensured that the fabric enters the ejector with the relatively constant tension, and the problem that the fabric deviates from the expected dyeing effect due to the fact that the tension is too large or too small when the fabric penetrates through the ejector is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of textile machinery, and specifically relates to a high-temperature and high-pressure jet dyeing machine and a dyeing method based on tension control. Background Art

[0002] In the traditional dyeing process system, the control of fabric tension is a core difficulty. Especially in the operation scenario of a high-temperature and high-pressure jet dyeing machine, for the fabric running in a loop with the head and tail connected, during the long dyeing process, it is extremely easy to have uneven dyeing due to tension imbalance. Due to the complex internal environment of the dyeing machine, with differences in temperature and pressure in different areas, when the fabric circulates, the external forces received by different parts are uneven, resulting in uneven tension. This uneven tension will not only cause obvious color differences in the fabric, affecting the overall color consistency, but may also cause wrinkles, seriously damaging the flatness of the fabric. Even worse, it may cause the fabric fibers to be damaged and broken, greatly reducing the fabric quality.

[0003] In terms of tension adjustment of traditional equipment, it mainly relies on manual operation based on past experience or is achieved by means of simple mechanical devices. Manual adjustment depends on the personal skills and attention of the operator, is greatly affected by subjective factors, and it is difficult to ensure long-term stable and accurate control effects. Simple mechanical devices lack flexibility and can only be adjusted according to preset modes. Facing various fabrics with different characteristics such as materials, thicknesses, and elasticities, they simply cannot achieve targeted adaptation and cannot meet the unique tension requirements of different fabrics during dyeing. This makes the dyeing quality fluctuate greatly, the defective rate is high, and the production efficiency is greatly reduced due to frequent equipment debugging and rework. At the same time, during the adjustment process, it is very easy to have the phenomenon of excessive stretching or relaxation of the fabric. Excessive stretching will change the internal structure of the fabric fibers, reducing the strength and durability of the fabric; while excessive relaxation may cause the fabric to wind and knot in the dyeing machine, hindering the normal progress of the dyeing process, and both have a great negative impact on the finished product quality.

[0004] When the fabric passes through the key part of the injector, the influence of tension on the dyeing effect is more intuitive. If the fabric tension is too large, the fibers will be tightly squeezed, the fiber gaps will be greatly reduced, and it is difficult for dye molecules to penetrate into the fiber interior, resulting in a lighter color on the fabric surface and uneven coloring. On the contrary, if the fabric tension is too small, the fiber structure is loose and disordered, and excessive dye is adsorbed, and the fabric color will become significantly darker, deviating from the expected dyeing effect. Summary of the Invention

[0005] In view of the problems existing in the prior art, a high-temperature and high-pressure jet dyeing machine and a dyeing method based on tension control are provided. A tension detection roller and two clamping rollers that can clamp the fabric and adjust the rotation speed relative to the cloth lifting roller are arranged in a cylinder body. The tension of the fabric before entering the ejector is detected in real time by the tension detection roller, and the tension of the fabric is adjusted in real time by the two clamping rollers to ensure that the fabric enters the ejector with a relatively constant tension, thereby solving the problem of deviation from the expected dyeing effect due to excessive or insufficient tension of the fabric when passing through the ejector.

[0006] In order to solve the problems of the prior art, the present invention provides a high-temperature and high-pressure jet dyeing machine based on tension control, comprising a cylinder body, a cloth lifting roller and an injector arranged in the cylinder body, a tension detection roller and two clamping rollers are also arranged in the cylinder body, the tension detection roller is located between the cloth lifting roller and the injector, the tension detection roller abuts against the fabric for detecting the tension of the fabric before entering the injector, the two clamping rollers are located at the bottom of the injector and a clamping and conveying port for the fabric to pass through is formed therebetween, a rotary drive assembly and a transmission are also arranged outside the cylinder body, the rotary drive assembly is connected to the two clamping rollers through the transmission, the rotary drive assembly is used to drive the two clamping rollers to rotate to convey the fabric downward, the transmission controls the tension of the fabric passing through the injector by adjusting the rotation speed of the two clamping rollers and forming a differential with the cloth lifting roller, the rotary drive assembly comprises an outer transmission belt that is transmission-connected to the cloth lifting roller and the transmission; the transmission comprises a fixed ring capable of forming torque transmission with the clamping roller, the fixed ring is provided with transmission columns distributed along its circumference, all the transmission columns can move synchronously along the radial direction of the fixed ring, and the outer transmission belt is sleeved on all the transmission columns to form a transmission end.

[0007] Preferably, a frame is also provided in the cylinder body, in which two mounting seats capable of sliding toward each other are provided, two clamping rollers are rotatably provided in the two mounting seats respectively and are transmission-connected to the rotary drive assembly, an elastic element is provided between the mounting seat and the inner side of the frame, and the two clamping rollers elastically clamp the fabric.

[0008] Preferably, an elastic force adjustment component is also provided in the frame, and the elastic force adjustment component has an adjustment plate arranged between the inner side of the frame and the mounting seat, and the adjustment plate can move along the moving direction of the mounting seat, and the elastic element is located between the adjustment plate and the mounting seat.

[0009] Preferably, the elastic force adjustment assembly also includes an adjustment block and a screw rod. The adjustment block is slidably arranged on the top of the frame along the length direction of the mounting seat. A guide column is arranged at the bottom end of the adjustment block. The screw rod is rotatably arranged on the frame and parallel to the clamping roller. The screw rod passes through the adjustment block and is threadedly connected to the adjustment block. A guide plate connected to the adjustment plate is arranged at the top end of the adjustment plate, and an inclined guide groove is arranged on the guide plate. The guide column extends into the guide groove and slides with the guide groove.

[0010] Preferably, a guide post is provided on the side of the mounting base facing the inner side of the frame. The guide post slidably penetrates through the frame, and a limit ring is provided on the guide post. The limit ring is located between the inner side of the frame and the adjusting plate.

[0011] Preferably, the rotary drive assembly further includes a driven shaft, an inner transmission belt, a driven shaft, an inner tension pulley and an outer tension pulley. The driven shaft and the inner tension pulley are rotatably arranged in the frame, and the outer tension pulley is rotatably arranged on the cylinder block. The inner transmission belt is sleeved on the end shafts of the driven shaft, the inner tension pulley and the clamping roller. The other end of the driven shaft penetrates through the cylinder block and extends outward to form an outer end portion. The transmission is arranged on the outer end portion. The outer transmission belt is sleeved on the end shaft of the cloth lifting roller, the transmission and the outer tension pulley.

[0012] Preferably, the transmission further includes an adjusting ring. The adjusting ring is coaxially and rotatably arranged on the outer periphery of the driven shaft. The adjusting ring is provided with adjusting grooves distributed along its circumferential direction. The adjusting grooves extend along a direction deviating from the radial direction of the deviator. One end of the transmission column extends into the adjusting grooves.

[0013] Preferably, one end of the fixed ring is provided with a fixed cylinder. One end of the adjusting ring is provided with an outer adjusting cylinder that is coaxially and rotatably connected to the fixed cylinder. The outer adjusting cylinder is provided with adjusting columns extending along its radial direction. The transmission further includes a driving ring that forms a spline connection with the fixed cylinder. One end of the driving ring facing the adjusting ring is provided with an inner adjusting cylinder that is slidably connected to the fixed cylinder. An arc-shaped groove that slidably cooperates with the adjusting columns is provided on the circumferential surface of the inner adjusting cylinder. The transmission further includes a linear push rod arranged outside the cylinder block. The output rod of the linear push rod is coaxially and rotatably connected to the driving ring.

[0014] A high-temperature and high-pressure jet dyeing method based on tension control uses a high-temperature and high-pressure jet dyeing machine based on tension control, and includes the following steps: Step 1: One end of the fabric passes through the cloth lifting roller, the tension detection roller, then through the clamping conveying openings of the two clamping rollers, through the cloth storage tank, and finally the head and tail of the fabric are connected. Step 2: Start the cloth lifting roller, the injector and the rotary drive assembly. Step 3: When the tension detection roller detects that the tension of the fabric entering the injector is less than the predetermined value, the rotation speed of the clamping roller is increased through the transmission so that it is greater than the rotation speed of the cloth lifting roller. Step 4: When the tension detection roller detects that the tension of the fabric entering the injector is greater than the predetermined value, the rotation speed of the clamping roller is reduced through the transmission so that it is less than the rotation speed of the cloth lifting roller. Step 5: Repeat Step 3 and Step 4 until the dyeing is completed.

[0015] The beneficial effects of this application compared with the prior art are as follows: In this application, the tension detection roller is placed at the front section where the fabric enters the injector, and it is used to monitor the fabric tension in real time. The two clamping rollers can not only firmly clamp the fabric to prevent the fabric from sliding or shifting during transportation, but also adjust their own rotation speeds relative to the cloth lifting roller in real time according to the data fed back by the tension detection roller. When the tension detection roller detects that the tension of the fabric before entering the injector is too large, the control system will immediately issue an instruction to reduce the rotation speed of the clamping roller relative to the cloth lifting roller, so that the fabric is appropriately relaxed during transportation, thereby alleviating the excessive tension; conversely, if the detected tension is too small, the clamping roller will increase its rotation speed to tighten the fabric and increase the tension to an appropriate range. It can ensure that the fabric always enters the injector with a relatively constant tension that meets the requirements of the dyeing process. In this way, the thorny problem that in the past, when the fabric passed through the injector, due to excessive tension, the fiber gaps were compressed, the dye was difficult to penetrate, and the color became lighter, or due to too small tension, the fibers were loose and too much color was absorbed, resulting in a darker color, and thus deviating from the expected dyeing effect, is completely solved, greatly improving the stability and consistency of the dyeing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 2 is a perspective view of the clamping roller and the cloth lifting roller in the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 3 is a cross-sectional view of the rotary drive assembly in the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 4 is a radial cross-sectional view of the clamping roller in the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 5 is a perspective view of the clamping roller and the elastic force adjusting assembly in the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 6 is a partial perspective exploded view of the clamping roller and the elastic force adjusting assembly in the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 7 is a perspective exploded view of the transmission in the first perspective of the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 8 is Figure 7 a partial enlarged view of part A; Figure 9 is a perspective exploded view of the transmission in the second perspective of the high-temperature and high-pressure jet dyeing machine based on tension control of the present invention; Figure 10 is Figure 9 a partial enlarged view of part B.

[0017] The reference numerals in the figure are: 1, cylinder block; 11, fabric storage tank; 2, fabric lifting roller; 3, injector; 4, clamping roller; 5, rotary drive assembly; 51, driven shaft; 52, inner tension pulley; 53, inner drive belt; 54, outer drive belt; 55, outer tension pulley; 6, transmission; 61, fixed ring; 611, fixed cylinder; 62, transmission column; 63, adjusting ring; 631, adjusting groove; 632, outer adjusting cylinder; 633, adjusting column; 64, drive ring; 641, inner adjusting cylinder; 642, arc groove; 65, linear push rod; 7, frame; 71, mounting seat; 711, guide post; 712, limit ring; 72, elastic element; 8, elastic force adjusting assembly; 81, adjusting plate; 811, guiding plate; 812, guiding groove; 82, adjusting block; 821, guiding post; 83, lead screw; 91, heat exchanger; 92, circulation pump. Detailed implementation manners

[0018] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0019] As Figures 1-6 shown, the high-temperature and high-pressure jet dyeing machine based on tension control includes a cylinder block 1, a fabric lifting roller 2 and an injector 3 arranged in the cylinder block 1. A tension detection roller and two clamping rollers 4 are also arranged in the cylinder block 1. The tension detection roller is located between the fabric lifting roller 2 and the injector 3, and the tension detection roller abuts against the fabric to detect the tension of the fabric before entering the injector 3. The two clamping rollers 4 are located at the bottom of the injector 3 and a clamping and conveying port for the fabric to pass through is formed between them. An external rotary drive assembly 5 and a transmission 6 are also arranged outside the cylinder block 1. The rotary drive assembly 5 is in transmission connection with the two clamping rollers 4 through the transmission 6. The rotary drive assembly 5 is used to drive the two clamping rollers 4 to rotate to convey the fabric downward, and the transmission 6 is used to adjust the rotation speed of the two clamping rollers 4.

[0020] During the dyeing operation, the head and tail of the fabric are connected to form a closed loop structure. The fabric lifting roller 2 acts first to smoothly lift the fabric from the dye bath. Immediately afterwards, the injector 3 sprays out a liquid flow with strong power, and the thrust generated by this liquid flow drives the fabric to continuously move forward inside the cylinder block 1. When the fabric falls into the dye vat, the fabric presents a slack and bent state as Figure 1 shown. This is the prior art of the jet dyeing machine and will not be elaborated here. The fabric is fully immersed in the dye bath and moves forward at a slow speed. Subsequently, the fabric lifting roller 2 lifts the fabric again, and so on, to ensure the continuous progress of the dyeing process. In this process, the dye liquor is powered by the circulation pump 92, first flows through the heat exchanger 91 for temperature adjustment to reach the appropriate dyeing temperature, and then is further accelerated by the injector 3 and sprayed out to provide sufficient power and uniform dye liquor distribution for fabric dyeing.

[0021] In order to achieve precise control of fabric tension and improve dyeing quality, a cloth lifting roller 2 and an ejector 3 are installed inside the cylinder 1, and a tension detection roller and two clamping rollers 4 are also added. The tension detection roller is placed between the cloth lifting roller 2 and the ejector 3, and is tightly against the surface of the fabric. This design enables the tension detection roller to detect the tension of the fabric before it enters the ejector 3 in real time and accurately, and to feed back the detected data to the control system in a timely manner. The two clamping rollers 4 are installed at the bottom of the ejector 3, and a clamping and conveying port specifically for the fabric to pass through is formed between them. When the fabric passes through this conveying port, the clamping roller 4 can stably clamp and convey it.

[0022] A rotary drive assembly 5 and a transmission 6 are arranged outside the cylinder 1. The rotary drive assembly 5 establishes a transmission connection with the two clamping rollers 4 through the transmission 6. The rotary drive assembly 5 provides power for the rotation of the clamping rollers 4, driving the two clamping rollers 4 to rotate in a set direction, thereby conveying the fabric downward. The transmission 6 is used to adjust the rotation speed of the two clamping rollers 4. The rotation speed of the clamping rollers 4 can be flexibly adjusted according to the tension data fed back by the tension detection roller to ensure that the fabric always maintains a relatively constant tension throughout the dyeing process, effectively avoiding dyeing quality problems caused by unstable tension.

[0023] like Figure 4 , Figure 5 and Figure 6 As shown, a frame 7 is also provided in the cylinder body 1, and two mounting seats 71 capable of sliding toward each other are provided in the frame 7. Two clamping rollers 4 are rotatably provided in the two mounting seats 71 respectively and are transmission-connected to the rotary drive assembly 5. An elastic element 72 is provided between the mounting seat 71 and the inner side of the frame 7, and the two clamping rollers 4 elastically clamp the fabric.

[0024] An elastic element 72 is arranged between the mounting seat 71 and the inner wall of the frame 7. When the fabric passes between the two clamping rollers 4, the elastic element 72 will adaptively adjust the clamping force of the two clamping rollers 4 on the fabric according to the thickness, material and other characteristics of the fabric. When facing thicker fabrics, the elastic element 72 is compressed by force, so that the distance between the two clamping rollers 4 is appropriately increased while maintaining a moderate clamping force; if the fabric is thinner, the elastic element 72 is in a relatively stretched state, maintaining a suitable clamping distance and force, and realizing the elastic clamping of the fabric by the two clamping rollers 4. This elastic clamping method can not only ensure that the fabric is stably transported during the dyeing process, but also effectively avoid damage to the fabric due to excessive clamping force, which greatly improves the adaptability of the equipment to different types of fabrics and the reliability of dyeing operations.

[0025] like Figure 2As shown in the figure, an elastic force adjusting component is further provided in the frame 7. The elastic force adjusting component 8 has an adjusting plate 81 disposed between the inner side of the frame 7 and the mounting seat 71. The adjusting plate 81 can move along the moving direction of the mounting seat 71, and the elastic element 72 is located between the adjusting plate 81 and the mounting seat 71.

[0026] The adjusting plate 81 has a special design and can move flexibly along the moving direction of the mounting seat 71. The elastic element 72 is arranged between the adjusting plate 81 and the mounting seat 71. When it is necessary to change the clamping force of the two clamping rollers 4 on the fabric, by moving the position of the adjusting plate 81, the compression degree of the elastic element 72 can be accurately adjusted.

[0027] Specifically, if it is necessary to increase the clamping force, move the adjusting plate 81 towards the mounting seat 71, which will further compress the elastic element 72, causing the elastic element 72 to generate a greater elastic force, thereby increasing the clamping force of the two clamping rollers 4 on the fabric; conversely, if it is necessary to decrease the clamping force, move the adjusting plate 81 away from the mounting seat 71, the compression degree of the elastic element 72 decreases, the elastic force decreases accordingly, and the clamping force of the two clamping rollers 4 on the fabric also decreases.

[0028] By setting the elastic force adjusting component, the elastic force of the elastic element 72 can be conveniently and quickly adjusted according to the characteristics of different fabrics and the requirements of the dyeing process, so as to achieve precise control of the elastic clamping force of the two clamping rollers 4, ensure that the fabric always maintains an appropriate tension during the dyeing process, and effectively improve the dyeing quality and the applicability of the equipment.

[0029] As Figure 5 and Figure 6 shown, the elastic force adjusting component further includes an adjusting block 82 and a lead screw 83. The adjusting block 82 is slidably arranged on the top of the frame 7 along the length direction of the mounting seat 71. A guiding column 821 is provided at the bottom end of the adjusting block 82. The lead screw 83 is rotatably arranged on the frame 7 and is parallel to the clamping roller 4. The lead screw 83 passes through the adjusting block 82 and is threadedly connected thereto; a guiding plate 811 connected to the adjusting plate 81 is provided at the top end of the adjusting plate 81. An inclined guiding groove 812 is provided on the guiding plate 811. The guiding column 821 extends into the guiding groove 812 and is slidably engaged therewith.

[0030] The lead screw 83 passes through the adjusting block 82 and forms a threaded connection with the adjusting block 82. This threaded connection method enables the rotation of the lead screw 83 to be converted into a linear motion of the adjusting block 82 along the length direction of the mounting seat 71. When the lead screw 83 rotates, due to the effect of the thread, the adjusting block 82 will move accordingly according to the rotation direction of the lead screw 83.

[0031] The guiding post 821 at the bottom end of the adjusting block 82 extends into this guiding groove 812 and forms a sliding fit with the guiding groove 812. When the adjusting block 82 moves along the length direction of the mounting seat 71 driven by the lead screw 83, the guiding post 821 will slide within the guiding groove 812. Since the guiding groove 812 is inclined, the sliding of the guiding post 821 within the guiding groove 812 will cause the guiding plate 811 and the adjusting plate 81 connected thereto to displace along the moving direction of the mounting seat 71.

[0032] By rotating the lead screw 83, the moving position of the adjusting block 82 can be controlled, and then through the cooperation of the guiding post 821 and the guiding groove 812, the position adjustment of the adjusting plate 81 is achieved. The change in the position of the adjusting plate 81 will directly affect the compression degree of the elastic element 72, thereby achieving precise adjustment of the elastic clamping force of the two clamping rollers 4.

[0033] As Figure 6 shown, on one side of the mounting seat 71 facing the inside of the frame 7, a guiding post 711 is provided. The guiding post 711 slidably penetrates the frame 7, and a limiting ring 712 is provided on the guiding post 711. The limiting ring 712 is located between the inside of the frame 7 and the adjusting plate 81.

[0034] The guiding post 711 ensures the straightness and stability of the moving path of the mounting seat 71 when it moves along a specific direction.

[0035] The limiting ring 712 can limit the excessive movement of the mounting seat 71, avoiding damage to other components of the equipment due to excessive movement of the mounting seat 71 or causing a situation of out-of-control adjustment.

[0036] As Figure 5 and Figure 6 shown, the rotary drive assembly 5 includes a driven shaft 51, an inner tension pulley 52, an inner transmission belt 53, an outer transmission belt 54, and an outer tension pulley 55. The driven shaft 51 and the inner tension pulley 52 are rotatably arranged in the frame 7, the outer tension pulley 55 is rotatably arranged on the cylinder block 1, the inner transmission belt 53 is sleeved on the driven shaft 51, the inner tension pulley 52, and the end shaft of the clamping roller 4. The other end of the driven shaft 51 penetrates the cylinder block 1 and extends outward to form an outer end portion, and a transmission 6 is arranged on the outer end portion. The outer transmission belt 54 is sleeved on the end shaft of the cloth lifting roller 2, the transmission 6, and the outer tension pulley 55.

[0037] The driven shaft 51 is in transmission connection with the cloth lifting roller 2 through the outer transmission belt 54 and the transmission 6. When the driven shaft 51 operates, relying on the friction force of the inner transmission belt 53, it drives the inner tension pulley 52 to rotate synchronously with the clamping roller 4. The inner tension pulley 52 plays a key role in adjusting the tightness of the inner transmission belt 53, ensuring stable power transmission, avoiding slipping of the inner transmission belt 53, and ensuring a stable rotation speed of the clamping roller 4.

[0038] One end of the driven shaft 51 penetrates through the cylinder block 1 and extends outward to form an outer end portion, connecting the power transmission systems inside and outside the cylinder block 1. The transmission 6 is installed on this outer end portion and can flexibly adjust the transmission ratio according to the equipment requirements. The outer transmission belt 54 is sleeved on the end shaft of the fabric lifting roller 2 and the transmission 6. The transmission 6 intelligently adjusts its own transmission ratio based on the fabric tension feedback data, and then precisely controls the rotation speed of the fabric lifting roller 2 through the outer transmission belt 54, so that the rotation speeds of the fabric lifting roller 2 and the clamping roller 4 are matched to ensure that the fabric always maintains a constant and appropriate tension during the dyeing process. The outer tension pulley 55 can always keep the outer transmission belt 54 transmitting power with a constant tension.

[0039] As Figures 7-10 shown, the transmission 6 includes a fixed ring 61. The fixed ring 61 is coaxially and fixedly arranged on the outer circumference of the driven shaft 51. The fixed ring 61 is provided with driving columns 62 distributed along its circumferential direction. All the driving columns 62 can move synchronously along the radial direction of the fixed ring 61. The outer transmission belt 54 is sleeved on the driving surface formed by all the driving columns 62.

[0040] When it is necessary to change the rotation speed of the fabric lifting roller 2 to match the dyeing requirements of different fabrics and cooperate with the rotation speed of the clamping roller 4, all the driving columns 62 are driven to move radially simultaneously through a specific control mechanism (such as a hydraulic, electric or mechanical linkage device, etc.).

[0041] The outer transmission belt 54 is tightly sleeved on the driving surface formed by all the driving columns 62. The radial movement of the driving columns 62 will change the equivalent diameter of this driving surface, thereby affecting the transmission relationship between the outer transmission belt 54 and the driving columns 62. The outer tension pulley 55 always keeps the outer transmission belt 54 tightened. When the driving columns 62 move radially outward, the transmission diameter increases, and when the rotation speed of the fabric lifting roller 2 is constant, the rotation speed of the clamping roller 4 increases; conversely, when the driving columns 62 move radially inward, the transmission diameter decreases, the rotation speed of the fabric lifting roller 2 remains unchanged, and the rotation speed of the clamping roller 4 increases. Through precise control of the radial position of the driving columns 62, the transmission 6 can adjust the rotation speed of the clamping roller 4 in real time and accurately according to the fabric tension data feedback by the tension detection roller, ensuring that the fabric always maintains an ideal and stable tension state during the dyeing process and providing a solid power control guarantee for high-quality dyeing operations.

[0042] As Figures 7-10 shown, the transmission 6 further includes an adjusting ring 63. The adjusting ring 63 is coaxially rotatably arranged on the outer circumference of the driven shaft 51. The adjusting ring 63 is provided with adjusting grooves 631 distributed along its circumferential direction. The adjusting grooves 631 extend in a direction deviating from the radial direction. One end of the driving column 62 extends into the adjusting grooves 631.

[0043] One end of each transmission column 62 extends into the corresponding adjustment slot 631. When the adjustment ring 63 rotates, due to the orientation of the adjustment slot 631, the transmission column 62 is subjected to a tangential force within the adjustment slot 631, thereby generating a component force along the radial direction of the fixed ring 61. This component force drives the transmission column 62 to move synchronously along the radial direction of the fixed ring 61, causing the equivalent diameter of the transmission surface formed by the transmission columns 62 to change.

[0044] By rotating the adjustment ring 63, the radial position of the transmission column 62 can be controlled, thereby enabling flexible adjustment of the transmission relationship between the external transmission belt 54 and the transmission column 62.

[0045] As Figures 7-10 shown, one end of the fixed ring 61 is provided with a fixed cylinder 611 fixedly connected to the driven shaft 51. One end of the adjustment ring 63 is provided with an outer adjustment cylinder 632 rotatably connected to the fixed cylinder 611 coaxially. The outer adjustment cylinder 632 is provided with an adjustment column 633 extending along its radial direction. The transmission 6 further includes a drive ring 64 in spline connection with the fixed cylinder 611. One end of the drive ring 64 facing the adjustment ring 63 is provided with an inner adjustment cylinder 641 slidably connected to the fixed cylinder 611. An arc-shaped groove 642 slidably engaged with the adjustment column 633 is provided on the circumferential surface of the inner adjustment cylinder 641. The transmission 6 further includes a linear push rod 65 disposed outside the cylinder block 1. The output rod of the linear push rod 65 is rotatably connected to the drive ring 64 coaxially.

[0046] When the external transmission belt 54 drives multiple transmission columns 62 to rotate circumferentially along the driven shaft 51, since the transmission columns 62 are arranged on the fixed ring 61 and the fixed cylinder connected to the fixed ring 61 is connected to the driven shaft 51, the external transmission belt 54 can drive the driven shaft 51 to rotate, and then transmit the torque to the clamping roller 4 through the internal transmission belt 53.

[0047] The driven shaft 51 is a passive shaft. The outer end of the driven shaft 51 extending to the outside of the cylinder block 1 is provided with a transmission 6. The transmission 6 is in transmission connection with the cloth lifting roller 2 through an external transmission belt 54. The cloth lifting roller 2 is driven by a motor disposed outside the cylinder block 1. The specific structure is prior art and will not be elaborated. The rotation speed of the cloth lifting roller 2 remains constant all the time. By changing the transmission diameter of the transmission column 62, the rotation speed of the clamping roller 4 is changed, thereby adjusting the tension of the fabric between the cloth lifting roller 2 and the clamping roller 4.

[0048] When the drive ring 64 moves axially along the fixed cylinder 611 under the action of external power, the inner adjustment cylinder 641 moves synchronously. Since the adjustment column 633 is embedded in the arc-shaped groove 642 of the inner adjustment cylinder 641, as the inner adjustment cylinder 641 moves, the adjustment column 633 slides in the arc-shaped groove 642, thereby driving the adjustment ring 63 to rotate around the fixed cylinder 611. In this way, the radial positions of all the transmission columns 62 on the fixed ring 61 can be adjusted synchronously.

[0049] When the linear push rod 65 extends, the driving ring 64 moves axially along the fixed cylinder 611, driving the inner adjusting cylinder 641 to push the adjusting ring 63 to rotate, causing the transmission column 62 to move radially outward along the fixed ring 61, increasing the transmission diameter formed by all the transmission columns 62. Since the rotational speed of the fabric lifting roller 2 remains unchanged, the rotational speed of the clamping roller 4 is decreased; conversely, when the linear push rod 65 retracts, the driving ring 64 moves in the reverse direction, the adjusting ring 63 rotates in the opposite direction, and the transmission column 62 moves radially inward. Since the rotational speed of the fabric lifting roller 2 remains unchanged, the transmission diameter formed by all the transmission columns 62 is decreased, and the rotational speed of the clamping roller 4 is increased.

[0050] As Figure 1 shown, the high-temperature and high-pressure jet dyeing method based on tension control uses a high-temperature and high-pressure jet dyeing machine based on tension control, and includes the following steps: Step 1: One end of the fabric passes through the tension detection roller by the fabric lifting roller 2, then passes through the clamping conveying openings of the two clamping rollers 4, passes through the fabric storage tank 11, and finally the fabric is connected end to end. Step 2: Start the fabric lifting roller 2, the injector 3, and the rotary drive assembly 5. Step 3: When the tension detection roller detects that the tension of the fabric entering the injector 3 is less than the predetermined value, the rotational speed of the clamping roller 4 is increased through the transmission 6 so that it is greater than the rotational speed of the fabric lifting roller 2. Step 4: When the tension detection roller detects that the tension of the fabric entering the injector 3 is greater than the predetermined value, the rotational speed of the clamping roller 4 is decreased through the transmission 6 so that it is less than the rotational speed of the fabric lifting roller 2. Step 5: Repeat Step 3 and Step 4 until the dyeing is completed.

[0051] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A high-temperature and high-pressure jet dyeing machine based on tension control, comprising a cylinder body, a cloth lifting roller and an ejector arranged in the cylinder body, characterized in that: A tension detection roller and two clamping rollers are also provided in the cylinder body. The tension detection roller is located between the cloth lifting roller and the ejector. The tension detection roller abuts against the fabric to detect the tension of the fabric before it enters the ejector. The two clamping rollers are located at the bottom of the ejector and a clamping and conveying port for the fabric to pass through is formed therebetween. A rotary drive assembly and a transmission are also provided outside the cylinder body. The rotary drive assembly is connected to the two clamping rollers through the transmission. The rotary drive assembly is used to drive the two clamping rollers to rotate so as to convey the fabric downward. The transmission controls the tension of the fabric passing through the ejector by adjusting the rotation speed of the two clamping rollers and forming a differential with the cloth lifting roller. The rotary drive assembly includes an external transmission belt that transmits and connects the cloth lifting roller and the transmission. The transmission includes a fixed ring that can form torque transmission with the clamping roller. The fixed ring is provided with transmission columns distributed along its circumference. All transmission columns can move synchronously along the radial direction of the fixed ring. The external transmission belt is sleeved on all transmission columns to form a transmission end.

2. The high temperature and high pressure jet dyeing machine based on tension control according to claim 1, characterized in that: A frame is also provided in the cylinder body, in which two mounting seats capable of sliding toward each other are provided, two clamping rollers are rotatably provided in the two mounting seats respectively and are transmission-connected to the rotary drive assembly, an elastic element is provided between the mounting seat and the inner side of the frame, and the two clamping rollers elastically clamp the fabric.

3. The high temperature and high pressure jet dyeing machine based on tension control according to claim 2, characterized in that: The frame is also provided with an elastic force adjustment component, which has an adjustment plate arranged between the inner side of the frame and the mounting seat, the adjustment plate can move along the moving direction of the mounting seat, and the elastic element is located between the adjustment plate and the mounting seat.

4. The high temperature and high pressure jet dyeing machine based on tension control according to claim 3, characterized in that: The elastic force adjustment assembly also includes an adjustment block and a screw rod. The adjustment block is slidably arranged on the top of the frame along the length direction of the mounting seat. A guide column is arranged at the bottom end of the adjustment block. The screw rod is rotatably arranged on the frame and parallel to the clamping roller. The screw rod passes through the adjustment block and is threadedly connected to the adjustment block. A guide plate connected to the adjustment plate is arranged at the top end of the adjustment plate. An inclined guide groove is arranged on the guide plate. The guide column extends into the guide groove and slides with the guide groove.

5. The high temperature and high pressure jet dyeing machine based on tension control according to claim 3 or 4, characterized in that: A guide column is arranged on one side of the mounting seat facing the inner side of the frame. The guide column slides through the frame. A limit ring is arranged on the guide column. The limit ring is located between the inner side of the frame and the adjustment plate.

6. The high temperature and high pressure jet dyeing machine based on tension control according to any one of claims 2 to 4, characterized in that: The rotary drive assembly also includes a driven shaft, an inner transmission belt, a driven shaft, an inner tensioning wheel and an outer tensioning wheel. The driven shaft and the inner tensioning wheel are rotatably arranged in the frame, and the outer tensioning wheel is rotatably arranged on the cylinder body. The inner transmission belt is sleeved on the driven shaft, the inner tensioning wheel and the end shaft of the clamping roller. The other end of the driven shaft passes through the cylinder body and extends outward to form an outer end portion. The transmission is arranged on the outer end portion. The outer transmission belt is sleeved on the end shaft of the cloth lifting roller, the transmission and the outer tensioning wheel.

7. The high temperature and high pressure jet dyeing machine based on tension control according to claim 6, characterized in that: The transmission also includes an adjustment ring, which is coaxially rotatably arranged on the outer periphery of the driven shaft. The adjustment ring is provided with adjustment grooves distributed along its circumference. The adjustment grooves extend in the radial direction of the deviator, and one end of the transmission column extends into the adjustment grooves.

8. The high temperature and high pressure jet dyeing machine based on tension control according to claim 7, characterized in that: A fixing cylinder is provided at one end of the fixing ring, an outer adjusting cylinder is provided at one end of the adjusting ring and is coaxially rotatably connected to the fixing cylinder, an adjusting column extending radially thereof is provided on the outer adjusting cylinder, the transmission also includes a driving ring splined with the fixing cylinder, an inner adjusting cylinder is provided at one end of the driving ring facing the adjusting ring and is slidably connected to the fixing cylinder, an arc groove is provided on the circumferential surface of the inner adjusting cylinder and is slidably matched with the adjusting column, the transmission also includes a linear push rod provided outside the cylinder body, and an output rod of the linear push rod is coaxially rotatably connected to the driving ring.

9. A high temperature and high pressure jet dyeing method based on tension control, characterized in that: The high temperature and high pressure jet dyeing machine based on tension control as claimed in any one of claims 1 to 4 comprises the following steps: Step 1: one end of the fabric is passed from the fabric lifting roller to the tension detection roller, and then through the clamping conveying ports of the two clamping rollers, through the fabric storage groove, and finally the fabric is connected end to end; Step 2, starting the cloth lifting roller, the ejector and the rotary drive assembly; Step 3: When the tension detection roller detects that the fabric tension entering the ejector is less than a predetermined value, the rotation speed of the clamping roller is increased through the transmission to be greater than the rotation speed of the fabric lifting roller; Step 4: when the tension detection roller detects that the fabric tension entering the ejector is greater than a predetermined value, the rotation speed of the clamping roller is reduced through the transmission to make it less than the rotation speed of the fabric lifting roller; Step 5: Repeat steps 3 and 4 until dyeing is completed.

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