Winding device and method for pretreatment of double-width fabric adaptive to dynamic change of rolling diameter

Abstract

The invention relates to the technical field of fabric rolling, in particular to a rolling device and method for pretreatment of double-width fabric adaptive to dynamic change of rolling diameters. According to the technical scheme, the device comprises two vertical frames fixedly installed on the top of a front winding frame, first sliding blocks are slidably connected into the vertical frames, the side portions of the first sliding blocks are rotationally connected with upper rotating shafts making contact with fabric, and ejector rods are fixedly installed on the tops of the first sliding blocks. The upper rotating shafts roll on the fabric, the distance between the upper rotating shafts and the first fabric winding drum and the distance between the upper rotating shafts and the second fabric winding drum can be changed when the fabric is wound on the first fabric winding drum and the second fabric winding drum, at the moment, the two upper rotating shafts generate height difference, and the upper rotating shafts drive first sliding blocks and ejector rods to move upwards; the two rotating rods incline due to different rising heights, the rotating rods incline and drive the first gear to rotate to change the angle of the knob switch, the rotating speed of the first motor is increased, the rolling differential speed is made up, and therefore the fabric is aligned.

Description

Technical Field

[0001] This invention relates to the field of fabric winding technology, and more particularly to a winding device and method for pretreatment of double-width fabrics that adapts to dynamic changes in roll diameter. Background Technology

[0002] Before dyeing, two pieces of fabric of the same specification are sewn together by hand or machine. Then, the two pieces of fabric are dyed, dried and rolled up at the same time. Finally, according to the customer's needs (if the customer needs to separate the two pieces of fabric, a slitting machine is used to cut the center seam and then roll them into two rolls of fabric; if the customer does not need to, they are directly packaged), the actual significance is that the production capacity is twice that of the original.

[0003] The patent document with announcement number CN210366165U proposes a new type of high-efficiency double-width winding machine for lining processing. Through the combination of transmission gears and planetary gears, the first gear, the second gear and the third gear rotate on their own axis and revolve around the winding roller, thereby driving the first guide roller, the second guide roller and the third guide roller to rotate around the winding roller, which greatly assists the winding operation of the winding roller and improves the winding efficiency of the double-width winding machine.

[0004] However, two widths of the same batch of fabric may have differences in yarn density, sizing amount, and dyeing and finishing effects during the weaving or dyeing process. They may also have inherent differences in weight or thickness. As the fabric is wound up, the large difference in thickness between the two widths will cause the difference in winding speed to increase, resulting in the two widths of fabric being unable to align. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art where double-width fabrics cannot be aligned due to differential speed during winding, and to propose a winding device and method for pre-treatment of double-width fabrics that adapts to dynamic changes in roll diameter.

[0006] On one hand, the present invention proposes a winding device for pre-treatment of double-width fabrics that adapts to dynamic changes in roll diameter, including a front winding frame. The inner wall of the front winding frame is rotatably connected to a first fabric roll and a second fabric roll for winding two types of fabrics. The first fabric roll and the second fabric roll are respectively connected to a first motor and a second motor. The device also includes a synchronization component, comprising two vertical frames fixedly installed on the top of the front winding frame. A first slider is slidably connected inside the vertical frames. An upper rotating shaft that contacts the fabric is rotatably connected to the side of the first slider. A top rod is fixedly installed on the top of the first slider. A rotating rod is rotatably connected to the top of the top rod. An elastic rope is fixedly connected between the rotating rods on the two vertical frames. An adjusting component is provided inside the top rod. A rotary switch electrically connected to the first motor is rotatably connected inside the top rod. The rotary switch is electrically connected to the adjusting component. The center lines of the first fabric roll and the second fabric roll are located on the same straight line.

[0007] Optionally, the elastic rope is made of elastic steel cable, the tops of the two top rods are at the same height, and the outer wall of the top rod is slidably connected to the vertical frame.

[0008] Optionally, the adjusting component includes a first gear, the first gear is fixedly installed at the end of the rotating rod, the first gear is rotatably connected to the push rod, and a second gear is rotatably connected to the inner wall of the push rod, the second gear being fixedly connected to the rotary switch.

[0009] Optionally, the diameter of the first gear is larger than the diameter of the second gear, and the top of the push rod has a notch for the rotation of the first gear and the second gear.

[0010] Optionally, a central conveying assembly is provided behind the front take-up frame. The central conveying assembly includes a support frame, and three vertical slide rails are fixedly installed in the middle of the support frame. Two tension shafts are provided between two adjacent vertical slide rails. The two tension shafts support two fabrics respectively. Two sets of second sliders are rotatably connected to the two ends of the two tension shafts respectively. The second sliders slide up and down in the vertical slide rails.

[0011] Optionally, a first hydraulic telescopic rod is fixedly installed between the top of the second slider and the vertical slide rail, and a first manual hydraulic pump is fixedly installed inside the vertical frame. The first manual hydraulic pump is connected to the first hydraulic telescopic rod through a hydraulic pipe, and the top of the first manual hydraulic pump is fixedly connected to the first slider.

[0012] Optionally, the inner wall of the support frame is rotatably connected to two symmetrically arranged conveyor shafts, the tension shaft is located between the two conveyor shafts, and the fabric forms a V-shaped distribution at the tension shaft and the conveyor shaft.

[0013] Optionally, a supplementary component is provided above the tension shaft supporting the fabric. The supplementary component includes a second manual hydraulic pump with a spring inside, which is fixedly installed on the top rod. A ball bearing is rolledly connected to the end of the second manual hydraulic pump. A second hydraulic telescopic rod is fixedly installed inside the vertical slide rail. The bottom of the second hydraulic telescopic rod is fixedly connected to the first hydraulic telescopic rod. The second manual hydraulic pump is connected to the second hydraulic telescopic rod through a hydraulic pipe.

[0014] Optionally, a ramp is fixedly installed on the side of the second gear facing the second manual hydraulic pump, the ramp having an inclined structure on the side facing the ball, and a rear conveyor roller is fixedly installed behind the support frame.

[0015] On the other hand, the present invention proposes a winding method for pretreatment of double-width fabrics that adapts to dynamic changes in roll diameter, which is applied to the aforementioned winding device for pretreatment of double-width fabrics that adapts to dynamic changes in roll diameter. The steps are as follows: S1. The fabric is wound up by the first fabric roll and the second fabric roll. Initially, the first fabric roll and the second fabric roll rotate at the same speed to align the two fabric widths. S2. As the first and second fabric rolls are wound up, the fabric is wound into a roll. However, due to the differences in yarn density, sizing amount, and dyeing and finishing effects between the two fabrics of the same batch during weaving or dyeing, there are inherent differences in weight or thickness. As the fabric is wound up, the length of the fabric wound up by the first and second fabric rolls after one rotation is different. S3. The fabric is rolled on the upper rotating shaft. The fabric is wound on the first fabric roll and the second fabric roll. The distance between the upper rotating shaft and the first fabric roll and the second fabric roll will change. Since the fabric thickness wound on the first fabric roll and the second fabric roll is different, the two upper rotating shafts will rise to different heights as the fabric is wound. The top rod will rise to different heights. S4. The rotating rod tilts and drives the first gear to rotate. The first gear drives the second gear to rotate, changing the angle of the knob switch, thereby increasing the speed of the first motor, compensating for the winding speed difference, and aligning the fabric.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: 1. This invention utilizes an upper rotating shaft rolling on the fabric. The winding of the fabric on the first and second fabric rolls changes the distance between the upper rotating shaft and the first and second fabric rolls. At this time, the two upper rotating shafts generate a height difference. The upper rotating shaft drives the first slider and the top rod to move upward. The two rods rise to different heights, causing them to tilt. The tilting of the rods drives the first gear to rotate. The first gear drives the second gear to rotate, changing the angle of the knob switch, thereby increasing the speed of the first motor and compensating for the winding speed difference between the two fabric widths, so as to align the fabrics. 2. In use, as the diameter of the fabric roll increases, the winding speed of the fabric increases. The increased diameter of the fabric roll will cause the upper rotating shaft and the first slider to slide upward. The first slider pulls the first manual hydraulic pump to draw in the hydraulic oil in the first hydraulic telescopic rod, which will cause the first hydraulic telescopic rod to contract, thereby increasing the height of the second slider and the tension shaft, reducing the movement path of the fabric at the tension shaft and the conveying shaft, thereby reducing the tension on the fabric and avoiding excessive winding speed and excessive tension, which would cause the fabric to deform. 3. In this invention, rotating the rotary switch increases the speed of the first motor, making the speed at which the first fabric roll is wound up the fabric the same as that of the second fabric roll. At this time, the rotary switch drives the inclined platform to rotate, reducing the pressure on the second manual hydraulic pump. The spring inside the second manual hydraulic pump resets it, and the second manual hydraulic pump draws hydraulic oil from the second hydraulic telescopic rod into its own interior. At this time, the second manual hydraulic pump contracts, raising the height of the first manual hydraulic pump and the first hydraulic telescopic rod, i.e., the height of the tension shaft, thereby adjusting the tension. This invention only targets the roll whose speed is increased due to the synchronization component, avoiding the problem of fabric damage caused by the lack of corresponding tension adjustment after the speed is increased. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the present invention is provided; Figure 2 This is a schematic diagram of the first fabric roll structure; Figure 3 This is a schematic diagram of the top-mounted rotating shaft structure; Figure 4 for Figure 3 Enlarged schematic diagram of the second gear structure in part A; Figure 5 This is a schematic diagram of the second slider structure of the present invention; Figure 6 This is a schematic diagram of the fabric conveying path of the present invention; Figure 7 This is a schematic diagram of the vertical slide rail structure of the present invention; Figure 8 This is a schematic diagram of the inclined platform structure of the present invention.

[0018] Reference numerals: 1. Front take-up frame; 2. Synchronization assembly; 21. Vertical frame; 22. First slider; 23. Upper rotating shaft; 24. Top rod; 25. Rotating rod; 26. Elastic rope; 27. First gear; 28. Second gear; 29. ​​Rotary switch; 3. First fabric roll; 4. Second fabric roll; 5. Central conveyor assembly; 51. Support frame; 52. Conveyor shaft; 53. Vertical slide rail; 54. Second slider; 55. Tension shaft; 56. First hydraulic telescopic rod; 57. First manual hydraulic pump; 6. Rear conveyor roller; 7. Supplementary assembly; 71. Second hydraulic telescopic rod; 72. Second manual hydraulic pump; 73. Ball bearing; 74. Inclined platform. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] 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.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example: This invention proposes a winding device for pretreatment of double-width fabrics that adapts to dynamic changes in roll diameter, such as... Figure 1 and Figure 2 As shown, the device includes a front winding frame 1. A first fabric roll 3 and a second fabric roll 4 are rotatably connected to the inner wall of the front winding frame 1 for winding two types of fabric. The first fabric roll 3 and the second fabric roll 4 are respectively connected to a first motor and a second motor. The centerlines of the first fabric roll 3 and the second fabric roll 4 are on the same straight line. The motors drive the first fabric roll 3 and the second fabric roll 4 to rotate and wind up the fabric, thereby aligning the two fabric widths.

[0025] like Figures 2 to 4As shown, a synchronization component 2 is provided on the top of the front take-up frame 1. The synchronization component 2 includes two vertical frames 21 fixedly installed on the top of the front take-up frame 1. A first slider 22 is slidably connected inside the vertical frame 21. An upper rotating shaft 23 that contacts the fabric is rotatably connected to the side of the first slider 22. A top rod 24 is fixedly installed on the top of the first slider 22. A rotating rod 25 is rotatably connected to the top of the top rod 24. An elastic rope 26 is fixedly connected between the rotating rods 25 on the two vertical frames 21. The top heights of the two top rods 24 are the same, and the outer walls of the top rods 24 are slidably connected to the vertical frames 21.

[0026] Initially, the top heights of the two top rods 24 are the same. As the first fabric roll 3 and the second fabric roll 4 are wound up, the fabric is wound into a roll. However, because the two fabrics from the same batch differ in yarn density, sizing amount, and dyeing and finishing effects during weaving or dyeing, their weight or thickness inherently varies. Therefore, after the first fabric roll 3 and the second fabric roll 4 rotate once, the lengths of the wound fabric are different. As the upper rotating shaft 23 rolls on the fabric, the distance between the upper rotating shaft 23 and the first fabric roll 3 and the second fabric roll 4 changes. Because the thickness of the fabric wound by the first fabric roll 3 and the second fabric roll 4 is different, the two upper rotating shafts 23 rise to different heights as the fabric is wound up, and the top rods 24 rise to different heights.

[0027] The elastic rope 26 is made of elastic steel cable. The outer wall of the top rod 24 is slidably connected to the vertical frame 21 and connected to the rotating rod 25 through the elastic rope 26.

[0028] An adjusting component is provided inside the push rod 24. A rotary switch 29, which is electrically connected to the first motor, is rotatably connected inside the push rod 24. The rotary switch 29 is electrically connected to the adjusting component. The adjusting component includes a first gear 27. The first gear 27 is fixedly installed at the end of the rotating rod 25. The first gear 27 is rotatably connected to the push rod 24. A second gear 28 is rotatably connected to the inner wall of the push rod 24. The second gear 28 is fixedly connected to the rotary switch 29.

[0029] When the thickness difference between the fabric on the first fabric roll 3 and the fabric on the second fabric roll 4 increases, the two rotating rods 25 and the elastic rope 26 tilt. The rotating rod 25 drives the first gear 27 to rotate, and the first gear 27 drives the second gear 28 to rotate, changing the angle of the knob switch 29, thereby increasing the speed of the first motor, compensating for the winding speed difference between the two fabrics, so as to align the fabrics.

[0030] The diameter of the first gear 27 is larger than that of the second gear 28, and the top of the push rod 24 has a notch for the rotation of the first gear 27 and the second gear 28. Since the difference in fabric thickness between the first fabric roll 3 and the second fabric roll 4 is small, the tilt angle of the rotating rod 25 and the elastic rope 26 is small. When the rotating rod 25 deflects at a small angle, the rotation angle of the second gear 28 is increased by increasing the gear ratio, thereby improving the adjustment range of the knob switch 29.

[0031] In this invention, the upper rotating shaft 23 rolls on the fabric. The winding of the fabric on the first fabric roll 3 and the second fabric roll 4 changes the distance between the upper rotating shaft 23 and the first fabric roll 3 and the second fabric roll 4. At this time, the two upper rotating shafts 23 generate a height difference. The upper rotating shaft 23 drives the first slider 22 and the top rod 24 to move upward. The two rotating rods 25 rise to different heights and tilt. The tilting of the rotating rods 25 drives the first gear 27 to rotate. The first gear 27 drives the second gear 28 to rotate and change the angle of the knob switch 29, thereby increasing the speed of the first motor and compensating for the winding speed difference between the two fabric widths so that the fabrics are aligned.

[0032] like Figures 3 to 7 As shown, a central conveying assembly 5 is provided behind the front take-up frame 1. The central conveying assembly 5 includes a support frame 51. Three vertical slide rails 53 are fixedly installed in the middle of the support frame 51. Two tension shafts 55 are provided between two adjacent vertical slide rails 53. The two tension shafts 55 support two fabrics respectively. Two sets of second sliders 54 are rotatably connected to the two ends of the two tension shafts 55 respectively. The second sliders 54 slide up and down in the vertical slide rails 53.

[0033] A first hydraulic telescopic rod 56 is fixedly installed between the top of the second slider 54 and the vertical slide rail 53. A first manual hydraulic pump 57 is fixedly installed inside the vertical frame 21. The top of the first manual hydraulic pump 57 is fixedly connected to the first slider 22. The pump chamber of the first manual hydraulic pump 57 is connected to the oil port of the first hydraulic telescopic rod 56 through a hydraulic pipe. By changing the height of the first slider 22, the first manual hydraulic pump 57 is pulled to draw hydraulic oil from inside the first hydraulic telescopic rod 56. The hydraulic oil inside the first hydraulic telescopic rod 56 enters the pump chamber of the first manual hydraulic pump 57 through the hydraulic pipe, thereby causing the first hydraulic telescopic rod 56 to retract.

[0034] As more fabric is wound onto the first fabric roll 3 and the second fabric roll 4, the first fabric roll 3 rotates once, and its winding speed increases. At this time, due to the increased amount of fabric, the upper rotating shaft 23 and the first slider 22 move upward. The first slider 22 stretches the first manual hydraulic pump 57 to draw in the hydraulic oil in the first hydraulic telescopic rod 56, which causes the first hydraulic telescopic rod 56 to contract, thereby increasing the height of the second slider 54 and the tension shaft 55, thus reducing the tension on the fabric.

[0035] The inner wall of the support frame 51 is rotatably connected to two conveyor shafts 52 arranged symmetrically in the horizontal direction. The tension shaft 55 is located between the two conveyor shafts 52, and the fabric forms a V-shaped distribution at the tension shaft 55 and the conveyor shaft 52.

[0036] As speed increases, the effect of deformation resistance becomes more significant. During high-speed winding, the fabric's "inertial deformation," such as stretching caused by sudden acceleration, becomes more pronounced. If the tension is not adjusted synchronously, the deformation will accumulate. If the tension is insufficient, the fabric will swing due to inertia, resulting in uneven winding. If the tension is too high, the fabric will be overstretched, shrinking upon cooling and causing the roll to deform.

[0037] As the diameter of the fabric roll increases, the first fabric roll 3 and the second fabric roll 4 rotate one revolution, and the length of the fabric rolled on them increases, that is, the winding speed increases. This can lead to excessive tension on the fabric and damage. In response to the increase in tension caused by the change in the fabric roll diameter on the first fabric roll 3 and the second fabric roll 4, this tension adjustment is carried out. This tension adjustment is applied to both the first fabric roll 3 and the second fabric roll 4.

[0038] In use, as the diameter of the fabric roll increases, the winding speed of the fabric also increases. The increased roll diameter causes the upper rotating shaft 23 and the first slider 22 to slide upwards. The first slider 22 pulls the first manual hydraulic pump 57 to draw in the hydraulic oil in the first hydraulic telescopic rod 56, which in turn causes the first hydraulic telescopic rod 56 to contract. This raises the height of the second slider 54 and the tension shaft 55, reduces the movement path of the fabric at the tension shaft 55 and the conveyor shaft 52, thereby reducing the tension on the fabric and preventing excessive winding speed and excessive tension, which could lead to fabric deformation.

[0039] like Figure 7 and Figure 8 When one of the first fabric roll 3 and the second fabric roll 4 has a shorter roll diameter than the other, the length of the fabric wound after one rotation is shorter, and the speed increases after adjustment, resulting in increased tension on the fabric. This increase in tension is caused by the adjustment of the speed. Therefore, the dynamic tension adjustment is only for the roll after the speed is adjusted by the synchronization component 2.

[0040] A supplementary component 7 is provided above the tension shaft 55 supporting the fabric. The supplementary component 7 includes a second manual hydraulic pump 72 with a spring inside, which is fixedly installed on the top rod 24. A ball bearing 73 is rolledly connected to the end of the second manual hydraulic pump 72. A second hydraulic telescopic rod 71 is fixedly installed inside the vertical slide rail 53. The bottom of the second hydraulic telescopic rod 71 is fixedly connected to the first hydraulic telescopic rod 56. The second manual hydraulic pump 72 is connected to the second hydraulic telescopic rod 71 through a hydraulic pipe.

[0041] An inclined platform 74 is fixedly installed on the side of the second gear 28 facing the second manual hydraulic pump 72. The inclined platform 74 has an inclined structure on the side facing the ball 73. A rear conveyor roller 6 is fixedly installed behind the support frame 51.

[0042] As the knob switch 29 rotates, the speed of the first motor increases, so that the speed at which the first fabric roll 3 winds up the fabric is the same as the speed at which the second fabric roll 4 winds up the fabric. At the same time as the knob switch 29 and the second gear 28 rotate, the second gear 28 rotates, causing the inclined platform 74 to rotate. The ball 73 moves from the thick side to the thin side of the inclined platform 74, and the position of the second manual hydraulic pump 72, which is obstructed, changes. At this time, the spring inside the second manual hydraulic pump 72 resets it. The second manual hydraulic pump 72 draws the hydraulic oil in the second hydraulic telescopic rod 71 into the second manual hydraulic pump 72, at which time the second manual hydraulic pump 72 retracts.

[0043] In this invention, rotating the rotary switch 29 increases the speed of the first motor, making the speed at which the first fabric roll 3 winds the fabric the same as the speed at which the second fabric roll 4 winds the fabric. At this time, the rotary switch 29 drives the inclined platform 74 to rotate, reducing the amount of pressure on the second manual hydraulic pump 72. The spring inside the second manual hydraulic pump 72 resets it, and the second manual hydraulic pump 72 draws the hydraulic oil in the second hydraulic telescopic rod 71 into its own interior. At this time, the second manual hydraulic pump 72 contracts, raising the height of the first manual hydraulic pump 57 and the first hydraulic telescopic rod 56, i.e., the height of the tension shaft 55, thereby adjusting the tension of the roll with the increased speed via the synchronization component 2.

[0044] A winding method for pretreatment of double-width fabrics that adapts to dynamic changes in roll diameter, applied to the aforementioned winding device for pretreatment of double-width fabrics that adapts to dynamic changes in roll diameter, comprises the following steps: S1. Two fabrics are wound up by the first fabric roll 3 and the second fabric roll 4 respectively. Initially, the first fabric roll 3 and the second fabric roll 4 rotate at the same speed to align the two fabrics. S2. As the first fabric roll 3 and the second fabric roll 4 are wound up, the fabric is wound into a roll. However, since the two fabrics of the same batch have different yarn density, sizing amount and dyeing and finishing effects during weaving or dyeing, there is an inherent difference in weight or thickness. As the fabric is wound up, the length of the fabric wound up by the first fabric roll 3 and the second fabric roll 4 after one rotation is different. S3. As the upper rotating shaft 23 rolls on the fabric, the fabric wound on the first fabric roll 3 and the second fabric roll 4 will change the distance between the upper rotating shaft 23 and the first fabric roll 3 and the second fabric roll 4. Since the fabric wound on the first fabric roll 3 and the second fabric roll 4 has different thicknesses, as the fabric is wound, the two upper rotating shafts 23 rise to different heights, and the top rod 24 rises to different heights. S4. The rotating rod 25 tilts and drives the first gear 27 to rotate. The first gear 27 drives the second gear 28 to rotate, changing the angle of the knob switch 29, thereby increasing the speed of the first motor, compensating for the winding speed difference, and aligning the fabric.

[0045] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A winding device for pre-treatment of double-width fabrics adaptable to dynamic changes in roll diameter, comprising a front winding frame (1), wherein a first fabric roll (3) and a second fabric roll (4) for winding two types of fabrics are rotatably connected to the inner wall of the front winding frame (1), and the first fabric roll (3) and the second fabric roll (4) are respectively connected to a first motor and a second motor, characterized in that, Also includes: The synchronization component (2) includes two vertical frames (21) fixedly installed on the top of the front take-up frame (1). A first slider (22) is slidably connected inside the vertical frame (21). An upper rotating shaft (23) in contact with the fabric is rotatably connected to the side of the first slider (22). A top rod (24) is fixedly installed on the top of the first slider (22). A rotating rod (25) is rotatably connected to the top of the top rod (24). An elastic rope (26) is fixedly connected between the rotating rods (25) on the two vertical frames (21). An adjusting component is provided inside the top rod (24). A rotary switch (29) electrically connected to the first motor is rotatably connected inside the top rod (24). The rotary switch (29) is electrically connected to the adjusting component. The axis of the first fabric roll (3) and the axis of the second fabric roll (4) are on the same straight line.

2. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 1, characterized in that: The elastic rope (26) is made of elastic steel cable, the top heights of the two top rods (24) are the same, and the outer wall of the top rod (24) is slidably connected to the vertical frame (21).

3. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 2, characterized in that: The adjusting component includes a first gear (27), the first gear (27) is fixedly installed at the end of the rotating rod (25), the first gear (27) is rotatably connected to the top rod (24), the inner wall of the top rod (24) is rotatably connected to a second gear (28), and the second gear (28) is fixedly connected to the rotary switch (29).

4. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 3, characterized in that: The diameter of the first gear (27) is larger than that of the second gear (28), and the top of the push rod (24) has a notch for the rotation of the first gear (27) and the second gear (28).

5. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 4, characterized in that: A central conveying assembly (5) is provided behind the front winding frame (1). The central conveying assembly (5) includes a support frame (51). Three vertical slide rails (53) are fixedly installed in the middle of the support frame (51). Two tension shafts (55) are provided between two adjacent vertical slide rails (53). The two tension shafts (55) support two fabrics respectively. Two sets of second sliders (54) are rotatably connected to the two ends of the two tension shafts (55). The second sliders (54) slide up and down in the vertical slide rails (53).

6. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 5, characterized in that: A first hydraulic telescopic rod (56) is fixedly installed between the top of the second slider (54) and the vertical slide rail (53). A first manual hydraulic pump (57) is fixedly installed inside the vertical frame (21). The first manual hydraulic pump (57) is connected to the first hydraulic telescopic rod (56) through a hydraulic pipe. The top of the first manual hydraulic pump (57) is fixedly connected to the first slider (22).

7. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 6, characterized in that: The inner wall of the support frame (51) is rotatably connected to two symmetrically arranged conveyor shafts (52), and the tension shaft (55) is located between the two conveyor shafts (52). The fabric forms a V-shaped distribution at the tension shaft (55) and the conveyor shaft (52).

8. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 7, characterized in that: A supplementary component (7) is provided above the tension shaft (55) supporting the fabric. The supplementary component (7) includes a second manual hydraulic pump (72) with a spring inside, which is fixedly installed on the top rod (24). The end of the second manual hydraulic pump (72) is connected to a ball bearing (73). A second hydraulic telescopic rod (71) is fixedly installed inside the vertical slide rail (53). The bottom of the second hydraulic telescopic rod (71) is fixedly connected to the first hydraulic telescopic rod (56). The second manual hydraulic pump (72) is connected to the second hydraulic telescopic rod (71) through a hydraulic pipe.

9. The winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter according to claim 8, characterized in that: The second gear (28) is fixedly mounted with a ramp (74) on the side facing the second manual hydraulic pump (72). The ramp (74) has an inclined surface structure on the side facing the ball (73). A rear conveyor roller (6) is fixedly mounted behind the support frame (51).

10. A winding method for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter, applied to the winding device for pretreatment of double-width fabrics adaptable to dynamic changes in roll diameter as described in claim 9, comprising the following steps: S1. Two fabrics are wound up by the first fabric roll (3) and the second fabric roll (4) respectively. Initially, the first fabric roll (3) and the second fabric roll (4) rotate at the same speed to align the two fabrics. S2. As the first fabric roll (3) and the second fabric roll (4) are wound up, the fabric is wound into a roll. However, since the two fabrics of the same batch are different in yarn density, sizing amount and dyeing finishing effect during weaving or dyeing, there is an inherent difference in weight or thickness. As the fabric is wound up, the length of the fabric wound up by the first fabric roll (3) and the second fabric roll (4) after rotating one circle is different. S3. By rolling the upper rotating shaft (23) on the fabric, the distance between the upper rotating shaft (23) and the first fabric roll (3) and the second fabric roll (4) will change as the fabric is wound on the first fabric roll (3) and the second fabric roll (4). Since the fabric thickness wound on the first fabric roll (3) and the second fabric roll (4) is different, as the fabric is wound, the two upper rotating shafts (23) rise to different heights, and the top rod (24) rises to different heights. S4. The rotating rod (25) tilts and drives the first gear (27) to rotate. The first gear (27) drives the second gear (28) to rotate, changing the angle of the knob switch (29), thereby increasing the speed of the first motor, compensating for the winding speed difference, so that the fabric is aligned.

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