Ultra-wide coated fabric processing and conveying mechanism and control method thereof

Abstract

The invention provides an ultra-wide coated fabric processing and conveying mechanism and a control method thereof.The conveying mechanism comprises a roller set composed of a plurality of rollers, the roller set is divided into a feeding stage, a first-stage lifting stage, a middle relaxation stage, a middle-rear-stage under-relaxation stage and a final-stage stress release stage in the conveying direction, and the heights of the rollers in all the stages are changed according to a piecewise function curve; comprising a rapid ascending section, a horizontal section, a gentle ascending section and a slow descending section. The parameter configuration of the roller group is as follows: a first-stage roller in the feeding stage is horizontally flush with the upstream incoming material direction; the final-stage roller is the same as the first-stage roller in diameter; the first-stage roller and the second-stage roller are in active drive, the rotating speed of the second-stage roller is 0.9 time that of the first-stage roller, and active drive and passive drive of the middle-stage roller are alternately arranged. The control method comprises staged stress control, dynamic parameter adaptation and forced convection heat transfer control. According to the transmission mechanism and the control method thereof, the coating processing quality can be effectively improved, the adaptability is enhanced, the temperature control is optimized, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of textile material preparation and processing, and in particular to an ultra-wide coated fabric processing transmission mechanism and a control method thereof. Background Art

[0002] In the process of processing ultra-wide coated fabrics, the design of the fabric transmission mechanism is one of the key factors affecting the coating quality. Traditional coated fabric transmission mechanisms usually adopt a simple roller group layout, which has many problems and shortcomings. The layout and parameter settings of the traditional roller group are relatively simple, and it is difficult to accurately control the stress state of the fabric at different transmission stages, resulting in uneven force on the fabric during the coating process, prone to uneven ductility, wrinkles, tensile deformation and other problems, which seriously affect the coating processing quality. For ultra-wide fabrics, due to their large width, stress concentration and uneven distribution are more likely to occur during the transmission process, and traditional transmission mechanisms are difficult to adapt to their special needs. In addition, when dealing with fabrics with different physical properties, traditional transmission mechanisms lack effective adjustment strategies and cannot be optimized in a targeted manner according to the ductility, flexibility and other characteristics of different fabrics, resulting in the coating processing effect being difficult to achieve the ideal state. Finally, traditional transmission mechanisms also have shortcomings in the stress release and temperature control of fabrics, and cannot effectively achieve temperature regulation of fabrics in a relaxed state, affecting the physical properties of fabrics and the coating processing effect during the coating process.

[0003] Therefore, a new spatial configuration of the transmission mechanism in the processing of ultra-wide coated fabrics and a fabric stress state control strategy are urgently needed as an ultra-wide coated fabric processing transmission mechanism and a control method thereof to solve the problems existing in the prior art. Summary of the invention

[0004] The embodiment of the present invention provides an ultra-wide coated fabric processing transmission mechanism and a control method thereof, which aims to solve the problems that the traditional transmission mechanism in the current technology cannot meet the requirements of uniform stress distribution and coordinated temperature optimization in the processing of ultra-wide coated fabrics due to the single roller layout, unadjustable parameters and lack of temperature control, resulting in unstable coating quality.

[0005] The core technology of the present invention is mainly to achieve uniform stress release of ultra-wide coated fabrics and significant improvement in coating quality through staged roller space configuration design (stretching → relaxation → under-relaxation → release), segmented mathematical model control of stress curve, coordinated regulation of mid- and rear-stage forced convection heat exchange devices, and dynamic parameter adjustment strategy based on fabric characteristics.

[0006] In a first aspect, the present invention provides an ultra-wide coated fabric processing and transmission mechanism, comprising: A roller group composed of multiple rollers. The roller group is divided into a feeding stage, a primary lifting stage, an intermediate relaxation stage, a mid-later under-relaxation stage, and a final stress release stage along the transmission direction. The heights of the rollers in each stage change according to a piecewise function curve, including a rapid rise section, a horizontal section, a gentle rise section, and a slow decline section. The parameter configuration of the roller group is as follows: The primary roller belonging to the feeding stage is horizontally flush with the upstream incoming material direction. The diameter of the final roller is the same as that of the primary roller. The primary roller and the secondary roller are actively driven. The rotational speed of the secondary roller is 0.9 times that of the primary roller. The intermediate rollers are alternately arranged with active drive and passive drive.

[0007] Furthermore, the diameters of the rollers in the roller group are also configured as follows: the diameter of the primary roller is 30 - 40 cm, the diameter of the secondary roller is 1.1 times that of the primary roller, and the diameter of the intermediate roller is 20 - 30 cm.

[0008] Furthermore, the heights of the rollers in each stage change according to a piecewise function curve, including: The rapid rise section corresponding to the primary lifting stage, expressed as y(x) = ax, where a > 0; The horizontal section corresponding to the intermediate relaxation stage, expressed as y(x) = b; The gentle rise section corresponding to the mid-later under-relaxation stage, expressed as y(x) = c + dx, where d > 0; The slow decline section corresponding to the final stress release stage, expressed as y(x) = e - fx, where f > 0; Wherein, x and y represent the abscissa and ordinate respectively, a represents the first slope, b represents the first roller height, c represents the second roller height, d represents the second slope, e represents the third roller height, and f represents the third slope.

[0009] Furthermore, the planar length of the roller group is 1.1 - 1.2 times the width of the fabric, and the overall transmission rate is 0.3 - 0.5 m / s.

[0010] Furthermore, the roller group is composed of 6 - 12 rollers.

[0011] In a second aspect, the present invention provides a control method for a processing and transmission mechanism of an extra-wide coated fabric, including the following steps: S00. Stress control in stages: The rollers in the feeding stage are horizontally flush with the upstream incoming material direction, and the initial stress is σ0; In the primary lifting stage (0 ≤ x < x1): the stress σ(x) = σ0 + k1x; In the intermediate relaxation stage (x1 ≤ x < x2): the stress σ(x) = σ1 + k2x; The under-relaxation stage (x2≤x <x3):应力σ(x)=C; Final stress release stage (x3≤x <x4):应力σ(x)=σ3+k3x Among them, k1 is the stress increase rate of the initial stretching in the first stage of lifting; σ0 is the stress value at the end of the initial stretching, ranging from 20 to 30N; σ1 is the stress value in the intermediate relaxation stage; σ3 is the stress value in the final stress release stage; k2 is the stress drop rate in the intermediate relaxation stage; k3 is the stress drop rate in the final stress release stage; C is a constant.

[0012] S10, Dynamic parameter adaptation: Adjust the transmission parameters according to the extensibility of the fabric. For fabrics with an extensibility less than a preset threshold, reduce the height of the first roller or the transmission rate; for fabrics with an extensibility greater than or equal to the preset threshold, increase the height of the first roller or the transmission rate; S20, forced convection heat exchange control: Arrange forced convection heat exchange devices at different roller stages; The first amplitude heat exchange is carried out in the first lifting stage and the intermediate relaxation stage to avoid the fabric tearing during the tensile strain process; In the middle and rear under-relaxation stage, a second amplitude heat exchange is performed, wherein the second amplitude is greater than the first amplitude.

[0013] The main contributions and innovations of the present invention are as follows: 1. Accurately control the stress state of the fabric: By optimizing the spatial configuration and transmission parameters of the roller group, the stress state of the fabric at different transmission stages can be accurately controlled, thereby improving the coating processing quality.

[0014] 2. Improve the uniformity of fabric transmission: By reasonably arranging the diameter, spatial position and movement state of the roller group, the fabric can be evenly stressed during the transmission process, avoiding coating processing defects caused by uneven stress.

[0015] 3. Enhance adaptability: According to the physical properties of different fabrics (such as ductility), adjust the parameters of the roller group to adapt to different types of fabrics and improve the versatility and flexibility of the transmission mechanism.

[0016] 4. Optimize temperature control: Arrange forced convection heat exchange devices at different roller stages to ensure that the fabric obtains the required temperature parameters in a relaxed state and avoid coating processing quality problems caused by temperature problems.

[0017] 5. Improve production efficiency: By optimizing the transmission speed and the driving mode of the roller group, the stress can be released evenly in stages while improving production efficiency.

[0018] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present invention more concise and understandable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a schematic diagram of a roller group of an ultra-wide-width coated fabric processing and transmission mechanism according to an embodiment of the present invention; Figure 2 is a flowchart of a control method for an ultra-wide-width coated fabric processing and transmission mechanism according to an embodiment of the present invention; Figure 3 is a stress curve diagram according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with one or more embodiments of this specification. On the contrary, they are merely examples of devices and methods consistent with some aspects of one or more embodiments of this specification as detailed in the appended claims.

[0021] It should be noted that: In other embodiments, the steps of the corresponding methods are not necessarily executed in the order shown and described in this specification. In some other embodiments, the steps included in the method may be more or less than those described in this specification. In addition, a single step described in this specification may be decomposed into multiple steps for description in other embodiments; and multiple steps described in this specification may also be combined into a single step for description in other embodiments.

[0022] Traditional coated fabric transmission mechanisms are difficult to accurately control the stress state of the fabric at different transmission stages, resulting in coating processing quality defects.

[0023] Based on this, the present invention solves the problems existing in the prior art based on the spatial configuration of multi-roller cooperation and the fabric stress state control strategy.

[0024] Embodiment 1 The present invention aims to propose a control method for the processing of ultra-wide coated fabrics. By optimizing the spatial configuration and transmission parameters of the roller group, the stress release of the fabric is controlled in stages, and a forced convection heat exchange device is arranged at different roller stages, so as to achieve precise control of the stress state of the fabric during the processing of the ultra-wide coated fabric and improve the coating quality and production efficiency.

[0025] Specifically, the embodiment of the present invention provides an ultra-wide coated fabric processing and transmission mechanism, specifically, referring to Figure 1 ,include: 1. Multi-roller group spatial configuration Roller group composition: It consists of 6-12 rollers, arranged in the same vertical axis plane, and is divided into five stages along the transmission direction: Feeding stage (corresponding to the roller stage numbered 1 to 2 in the attached figure): the fabric enters the transmission mechanism from the feed roller (from a planar position, the feed roller is flush with the horizontal position of the upstream material direction). At this time, the height of the roller is flush with the horizontal position of the upstream material direction (y(0)=0), the diameter of the roller is 30-40 cm, the transmission rate is 0.3-0.5 m / s, and it is actively driven by a motor.

[0026] First-stage lifting stage (corresponding to the roller stages from 2 to 4 in the attached figure): The height of the first-stage roller (number 2) rises suddenly by 2-3 meters, forming a rapid rise section (y(x)=ax, a is a large positive number, indicating the slope of rapid rise, such as a=0.8-2). The reason is that the height of the first-stage roller rises sharply by 2-3 meters, causing the fabric to be stretched. In actual operation, the size of the initial tensile stress is controlled by adjusting the motor speed and lifting height of the roller to ensure that the fabric is evenly stressed during the transmission process.

[0027] Intermediate relaxation stage (corresponding to the roller stage numbered 4 to 7 in the attached figure): rollers 4 to 7 are spaced a certain distance apart horizontally, with a spacing of 1.5 to 2 times the fabric width (the spacing is adjusted according to the fabric width and physical properties), so that the fabric is fully relaxed. This stage can be described as a gentle curve segment. The height is maintained at b = 2-3 meters (horizontal segment y(x) = b, b is a constant, indicating the height of the roller), the roller diameter is 20-30 cm, and active and passive drives are alternated. In actual operation, by measuring the stress state of the fabric, combined with the roller spacing and diameter, the layout and parameters of the rollers are adjusted to achieve full relaxation of the fabric at this stage.

[0028] Middle and final stage under-relaxation phase (moderate under-relaxation phase, corresponding to roller stages 7 to 8 in the attached drawings): Roller No. 7 is symmetrically arranged on both sides of the center line of the transmission mechanism, forming a gently rising section (horizontal section y(x) = c + dx, where c is a constant representing the height of the roller, and d is a small positive number representing the slope of the gentle rise. For example, c = 2.5 - 3.5 m and d = 0.1 - 0.2), which makes the fabric moderately under-relaxed. The roller diameter is 20 - 30 cm and is actively driven.

[0029] Final stage stress release phase (final stress release phase, corresponding to roller stages 8 to 9 in the attached drawings): The height of the final stage roller (No. 9) slowly decreases (y(x) = e - fx, where e = 3.0 - 3.5 m and f = 0.1 - 0.15), achieving complete stress release. The diameter is the same as that of the first stage roller (30 - 40 cm) and is actively driven. The transmission rate is 0.3 - 0.5 m / s. In actual operation, by adjusting the height and rotation speed of the final stage roller, the fabric is in a relaxed state after the coating process is completed, avoiding quality problems caused by residual stress.

[0030] Planar layout: The planar length of the rollers in the roller group is 1.1 - 1.2 times the width of the fabric, and the overall transmission rate is 0.3 - 0.5 m / s. The diameter of the secondary roller (No. 4) is 1.1 times that of the first stage roller, and both are actively driven by the motor. The rotation speed of the secondary roller is 0.9 times that of the first stage roller. The intermediate stage roller group (corresponding to the intermediate relaxation stage) is arranged in an alternating pattern of active and passive drives, with a diameter of 20 - 30 cm. The final stage roller runner (corresponding to the final stage stress release phase) is enlarged to the diameter size of the first stage roller. These designs enable the stress of the fabric transmission to be released evenly in stages and balance the production efficiency.

[0031] In summary, the typical curve equation of the spatial configuration of the roller group can be described as a piecewise function:

[0032] Among them, x1, x2, x3, x4 are the abscissas of the demarcation points in different stages, representing the position of the fabric in the transmission direction. a, b, c, d, e, f are coefficients determined according to the specific parameters of the roller group and the physical properties of the fabric.

[0033] Based on the above content, the stress curve of the fabric can be expressed as a piecewise function. Assuming that the stress is represented by σ(x), where x is the position of the fabric in the transmission direction, as Figure 3 shown, the stress curve can be expressed as:

[0034] Among them, σ0 is the initial stress, usually zero or a very small value, ranging from 20 to 30 N; k1 is the stress increase rate in the initial stretching stage; σ1 is the stress value in the intermediate relaxation stage; k2 is the stress decrease rate in the intermediate relaxation stage; k3 is the stress decrease rate in the final stress release stage; σ3 is the stress value in the final stress release stage; C is a constant. For example, x1 is 0.15L, k1 is greater than 10; x2 is 0.4L, k2 is less than -6; x3 is 0.9L, k3 is less than -5; C is 30 - 40 N, and L is the horizontal distance from the first stage to the last stage, which can be expressed as X4 - X1.

[0035] Preferably, the spatial position of the rollers and the transmission parameters are related to the physical parameters of the fabric. For fabrics with low ductility, the lifting height of the first-stage rollers should be appropriately reduced or the transmission rate should be slightly decreased on the above basis. Conversely, for fabrics with high ductility, the change range of the above parameters is within ±20%.

[0036] In this embodiment, the number of roller groups is 6 - 12, which is based on the full consideration of the stress state of the fabric during the processing of ultra-wide coated fabrics. In actual production, the width of the fabric is usually large, and too many or too few rollers cannot effectively control the stress state of the fabric. Six rollers can meet the basic stress control requirements, while twelve rollers can provide more precise control and are suitable for coating processing with higher requirements. When making a specific selection, it can be adjusted according to the physical properties of the fabric such as width, thickness, and ductility. For example, for fabrics with a large width and poor ductility, a larger number of roller groups can be selected to ensure uniform stress on the fabric during transmission.

[0037] 2. Driving and Transmission System First-stage and second-stage rollers: Driven independently by a servo motor, with a speed ratio of 1:0.9 to ensure stable initial tensile stress.

[0038] Intermediate-stage rollers: The driving rollers (odd positions) are driven by motors, and the driven rollers (even positions) are driven by fabric friction to reduce energy consumption.

[0039] Last-stage rollers: Driven synchronously with the first-stage rollers to ensure complete stress release.

[0040] 3. Temperature Control: Arrange forced convection heat exchange devices at different roller stages, and control the temperature parameters of the fabric according to the physical properties and process requirements of the fabric. In actual operation, by adjusting the temperature and flow rate of the heat exchange medium of the heat exchange device, combined with the stress state of the fabric and the requirements of the coating process, precise temperature control of the fabric is carried out to ensure the physical properties of the fabric and the coating quality during the coating process. For example, different from the stress release state, the heat exchange curve is small-scale heat exchange in the primary and secondary stages, avoiding tearing of the fabric during the tensile strain process, and a large amount of enhanced heat exchange occurs in the middle and rear roller groups, so that the fabric can obtain the required temperature parameters in the relaxed state.

[0041] In this embodiment, the forced convection heat exchange devices are mainly arranged in the middle and rear roller group stages, because the fabric is in a moderately under-relaxed state at this stage and a large amount of heat exchange is required to meet the coating process requirements. The heat exchange device can use air cooling. When arranging, it should be ensured that there is sufficient contact area between the heat exchange device and the fabric to improve the heat exchange efficiency.

[0042] Heat exchange parameter adjustment method: The heat exchange parameters mainly include the temperature, flow rate, etc. of the heat exchange medium. When adjusting the heat exchange parameters, it is necessary to carry out according to the physical properties of the fabric and the coating process requirements. For example, for fabrics with less ductility, the temperature of the heat exchange medium can be appropriately reduced and the flow rate can be appropriately decreased to avoid excessive stress on the fabric; for fabrics with greater ductility, the temperature and flow rate of the heat exchange medium can be appropriately increased to accelerate the heat exchange speed. When specifically adjusting, the optimal heat exchange parameters can be determined through experiments or simulation calculations.

[0043] Preferably, before processing the ultra-wide-width coated fabric, the fabric needs to be pretreated. The pretreatment mainly includes steps such as cleaning, drying, and finishing of the fabric. Cleaning can remove impurities and oil stains on the fabric surface to ensure good bonding between the coating and the fabric; drying can remove moisture in the fabric to avoid generating bubbles and wrinkles during the coating process; finishing can stretch and flatten the fabric to keep it in good condition during the transmission process. The specific methods of pretreatment can be selected according to the material and process requirements of the fabric. For example, for cotton fabrics, high-temperature steam finishing can be used; for chemical fiber fabrics, mechanical stretching finishing can be used.

[0044] Among them, the selection of coating materials also has an important impact on the quality of ultra-wide-width coated fabrics. When selecting coating materials, the physical properties of the fabrics and the requirements of the coating process need to be considered. For example, for fabrics with large ductility, coating materials with good flexibility can be selected to ensure that the coating does not crack during the stretching process of the fabric; for coating processes that require high temperature resistance, coating materials with high heat resistance should be selected. In addition, the coating materials should also have good adhesion, abrasion resistance, chemical resistance and other properties to meet the actual application requirements. When making a specific selection, the performance of different coating materials can be compared through experiments, and combined with production costs and environmental protection requirements, the most suitable coating materials can be determined.

[0045] In order to verify the technical effects of the present invention, an ultra-wide-width coated fabric processing and transmission mechanism designed by the present invention is adopted, and a corresponding forced convection heat exchange device and coating equipment are equipped.

[0046] Experimental materials: Fabrics with different physical properties are selected, including cotton, chemical fiber and blended fabrics, etc., as well as corresponding coating materials.

[0047] Experimental steps: The fabric is transmitted according to the transmission mechanism of the present invention, and the spatial configuration and transmission parameters of the roller group are controlled to achieve uniform stress release at different stages.

[0048] During the transmission process, the temperature of the fabric is controlled by the forced convection heat exchange device to ensure that the fabric obtains the required temperature parameters in the relaxed state.

[0049] The fabric that has undergone transmission and temperature control is subjected to coating processing, and various parameters during the coating processing are recorded, such as coating thickness, coating uniformity, etc.

[0050] The performance of the fabric after coating processing is tested, including the adhesion, abrasion resistance, chemical resistance, etc. of the coating.

[0051] Experimental results: Compared with the traditional transmission mechanism, after adopting the transmission mechanism of the present invention, the force on the fabric during the coating processing is more uniform, and problems such as uneven ductility, wrinkles, and stretching deformation have been significantly improved. For the fabric after coating processing, the coating thickness is more uniform, the adhesion has increased by about 20%, and the abrasion resistance and chemical resistance have also been improved.

[0052] In terms of temperature control, through the forced convection heat exchange device, the temperature parameters of the fabric in the relaxed state have been effectively adjusted, and the quality problems caused by temperature problems during the coating processing have been significantly reduced.

[0053] Embodiment 2 Based on the same concept, the present invention also proposes a control method for ultra-wide-width coated fabric processing, the following steps: S00, Stress control in stages: The rollers in the feeding stage are horizontally flush with the upstream incoming material direction, and the initial stress is σ0; The first-stage lifting stage (0 ≤ x < x1): The stress σ(x) = σ0 + k1x; The intermediate relaxation stage (x1 ≤ x < x2): The stress σ(x) = σ1 + k2x; The middle and later under-relaxation stage (x2 ≤ x < x3): The stress σ(x) = C; The last-stage stress release stage (x3 ≤ x < x4): The stress σ(x) = σ3 + k3x; Wherein, k1 is the stress increase rate of the initial tension in the first-stage lifting stage; σ0 is the stress value at the end of the initial tension; k2 is the stress decrease rate in the intermediate relaxation stage; σ1 is the stress value in the intermediate relaxation stage; σ3 is the stress value in the last-stage stress release stage; k3 is the stress decrease rate in the last-stage stress release stage.

[0054] For example, x1 is 0.15L, k1 is greater than 10; x2 is 0.4L, k2 is less than -6; x3 is 0.9L, k3 is less than -5; C is 30 - 40N, and L is the horizontal distance from the first stage to the last stage, which can be represented by X4 - X1.

[0055] S10, Dynamic parameter adaptation: Adjust the transmission parameters according to the fabric ductility. For fabrics with ductility less than the preset threshold (set according to actual requirements and not limited), lower the height of the first-stage rollers or the transmission rate; for fabrics with ductility greater than or equal to the preset threshold, increase the height of the first-stage rollers or the transmission rate, and the adjustment range is ±20%; S20, Forced convection heat transfer control: Arrange forced convection heat transfer devices at different roller stages; Conduct heat transfer with the first amplitude in the first-stage lifting stage and the intermediate relaxation stage to avoid fabric tearing during the tensile strain process; Conduct heat transfer with the second amplitude in the middle and later under-relaxation stage, where the second amplitude is greater than the first amplitude.

[0056] It is worth mentioning that the roller configuration and stress of cotton and linen materials are as described in the above embodiments. Other fabrics may have differences, but adjusting parameters according to different fabrics should be considered within the scope described in this specification.

[0057] Those skilled in the art should understand that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered within the scope described in this specification.

[0058] The above embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the 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 modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. The processing and transmission mechanism for ultra-wide coated fabrics is characterized in that, Including: A roller group composed of multiple rollers. The roller group is divided into a feeding stage, a primary lifting stage, an intermediate relaxation stage, a mid-latter under-relaxation stage, and a final stress release stage along the transmission direction. The heights of the rollers in each stage change according to a piecewise function curve, including a rapid rise section, a horizontal section, a gentle rise section, and a slow decline section. The parameter configuration of the roller group is as follows: The primary roller belonging to the feeding stage is horizontally flush with the upstream incoming material direction. The diameter of the final roller is the same as that of the primary roller. The primary roller and the secondary roller are actively driven. The rotational speed of the secondary roller is 0.9 times that of the primary roller. The intermediate rollers are alternately arranged with active drive and passive drive.

2. The ultra-wide-width coated fabric processing and transmission mechanism according to claim 1, characterized in that, The diameter of the roller group is also configured as follows: the diameter of the primary roller is 30 - 40 cm, the diameter of the secondary roller is 1.1 times that of the primary roller, and the diameter of the intermediate roller is 20 - 30 cm.

3. The ultra-wide-width coated fabric processing and transmission mechanism according to claim 2, wherein, The heights of the rollers in each stage change according to a piecewise function curve, including: The rapid rise section corresponding to the primary lifting stage, expressed as y(x) = ax, where a > 0. The horizontal section corresponding to the intermediate relaxation stage, expressed as y(x) = b. The gentle rise section corresponding to the mid-latter under-relaxation stage, expressed as y(x) = c + dx, where d > 0. The slow decline section corresponding to the final stress release stage, expressed as y(x) = e - fx, where f > 0. Where, x and y represent the abscissa and ordinate respectively, a represents the first slope, b represents the first roller height, c represents the second roller height, d represents the second slope, e represents the third roller height, and f represents the third slope.

4. The ultra-wide-width coated fabric processing and transmission mechanism according to claim 3, characterized in that, The planar length of the roller group is 1.1 - 1.2 times the width of the fabric, and the overall transmission rate is 0.3 - 0.5 m / s.

5. The ultra-wide-width coated fabric processing and transmission mechanism according to any one of claims 1-4, characterized in that, The roller group is composed of 6 - 12 rollers.

6. The control method of the ultra-wide-width coated fabric processing and transmission mechanism according to any one of claims 1-5, characterized in that, Including the following steps: S00, Stress control in stages: The rollers in the feeding stage are horizontally flush with the upstream incoming material direction, and the initial stress is σ0. Primary lifting stage (0 ≤ x < x1): Stress σ(x) = σ0 + k1x. Intermediate relaxation stage (x1 ≤ x < x2): Stress σ(x) = σ1 + k2x. Mid-latter under-relaxation stage (x2 ≤ x < x3): Stress σ(x) = C. Final stress release stage (x3 ≤ x < x4): Stress σ(x) = σ3 + k3x. Where, k1 is the stress increase rate of the initial tension in the primary lifting stage; σ0 is the stress value at the end of the initial tension; σ1 is the stress value in the intermediate relaxation stage; σ3 is the stress value in the final stress release stage; k2 is the stress decline rate in the intermediate relaxation stage; k3 is the stress decline rate in the final stress release stage; C is a constant. S10, Dynamic parameter adaptation: Adjust the transmission parameters according to the fabric ductility. For fabrics with ductility less than the preset threshold, reduce the height of the primary roller or the transmission rate; for fabrics with ductility greater than or equal to the preset threshold, increase the height of the primary roller or the transmission rate. S20, Forced convection heat transfer control: Arrange forced convection heat transfer devices at different roller stages. Conduct heat transfer with the first amplitude in the primary lifting stage and the intermediate relaxation stage to avoid tearing of the fabric during the tensile strain process. Conduct heat transfer with the second amplitude in the mid-latter under-relaxation stage, where the second amplitude is greater than the first amplitude.

7. The control method according to claim 6, wherein In step S10, the adjustment range is ±20%.

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