Shrink-proof finishing equipment and finishing process suitable for colored cotton fabric

Abstract

The invention relates to the technical field of colored cotton fabrics, in particular to shrink-proof finishing equipment and a finishing process suitable for colored cotton fabrics, the shrink-proof finishing equipment comprises a bottom plate, vertical plates are arranged at two ends of the bottom plate, one side of each vertical plate inclines upwards, and a two-way threaded rod is arranged on one side of one vertical plate; the immersing assembly is arranged in the two-way threaded rod and used for applying shrink-proof resin to the cotton fabric; and the tensioning assembly is arranged between the two vertical plates, and the tensioning assembly is used for adjusting the tensioning degree of the cotton fabric during rolling and finishing. Compared with the prior art, the tensioning assembly is arranged to be used in cooperation with the guide module, shrink-proof resin is fully cured, wrinkling and deformation are prevented, the finishing quality of fabric is finally improved, flaws caused by uneven tension are avoided, and the flatness and the shrink-proof effect of a finished product are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of colored cotton fabrics, and particularly relates to a shrink-proof finishing device and finishing process applicable to colored cotton fabrics. Background Art

[0002] Colored cotton fabrics refer to cotton fabrics that have been dyed and are usually used in the manufacture of clothing, home textiles and other textiles. Due to their high hygroscopicity, softness and comfort, they are widely used in the market. However, problems such as dimensional changes, shrinkage, and wrinkles may occur during the dyeing process of cotton fabrics. This phenomenon not only affects the appearance but also reduces the comfort and service life of the fabric. Therefore, using a shrink-proof finishing device to process colored cotton fabrics can effectively avoid these problems. During the shrink-proof finishing process, the application of liquid shrink-proof resin plays a key role. It can penetrate and wrap between the fabric fibers, reducing the mobility of the fibers, thereby effectively inhibiting the shrinkage phenomenon, enhancing the dimensional stability and strength of the fabric, and at the same time improving the wrinkle resistance of the fabric, keeping it flat during use and extending the service life of the fabric.

[0003] In the prior art, the tension of the fabric in traditional equipment usually cannot be evenly distributed, resulting in local accumulation or uneven winding during the winding process, thus affecting the final finishing effect. And because traditional equipment cannot dynamically adjust the tension, the fabric may wrinkle or deform due to uneven tension, affecting the finishing quality. In addition, the release control of the shrink-proof resin is inaccurate, which may lead to uneven resin distribution. Especially during high-speed rotation, it is difficult to adjust the release amount of the shrink-proof resin, which may result in excessive or insufficient resin spraying, reducing the shrink-proof effect and product quality. Therefore, this application discloses a shrink-proof finishing device and finishing process applicable to colored cotton fabrics. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a shrink-proof finishing device and finishing process applicable to colored cotton fabrics to solve the problems that in the case of uneven fabric tension, inaccurate resin release and lack of dynamic adjustment in traditional equipment, it is easy to cause uneven winding, wrinkle deformation and poor shrink-proof effect, affecting the finishing quality and product consistency.

[0005] Based on the above purpose, the present invention provides a shrink-proof finishing device applicable to colored cotton fabrics, including a bottom plate. Vertical plates are arranged at both ends of the bottom plate. One side of the vertical plates is inclined upward. A bidirectional threaded rod is arranged on one side of one of the vertical plates. A second servo motor is arranged on one side of one of the vertical plates. The output end of the second servo motor penetrates through the vertical plate. The output end of the second servo motor is fixedly connected to a winding rod, and the winding rod is used for winding a finishing cotton fabric immersion assembly. The immersion assembly is arranged inside the bidirectional threaded rod, and the immersion assembly is used for applying shrink-proof resin to the cotton fabric; A tensioning assembly, which is arranged between the two vertical plates and is used to adjust the tension of the cotton fabric during winding and finishing; A guiding assembly, which is arranged between the tensioning assembly and the winding rod. The guiding assembly includes a guiding module and a heating module. The guiding module is used to guide and orient the winding of the winding rod, and the heating module is used to heat and dry the cotton fabric after applying the shrinkage-proof resin.

[0006] Preferably, the immersion assembly includes an oil filling cavity, an oil storage cavity and an oil distribution cavity successively opened inside the bidirectional threaded rod. An oil injection hole is arranged inside the oil filling cavity, and a one-way injection valve is arranged inside the oil injection hole. The oil injection hole penetrates into the interior of the oil storage cavity. A number of liquid outlets are arranged inside the oil storage cavity. The number of groups of liquid outlets is used to inject the liquid shrinkage-proof resin into the interior of the oil distribution cavity at intervals. A number of external seepage holes are arranged on the outer surface of the bidirectional threaded rod, and the number of external seepage holes communicates with the oil distribution cavity. Each group of liquid outlets has three, and the three liquid outlets are arranged in a circumferential arrangement on the inner side of the outer wall of the oil storage cavity. The angle between the three liquid outlets is 120 degrees.

[0007] Preferably, the liquid outlet is arranged in a shape with a narrow inner side and a wide outer side in an eight-character shape. A first movable baffle and a second movable baffle are movably installed inside the liquid outlet. The first movable baffle and the second movable baffle are arranged oppositely, and the opposite positions of the first movable baffle and the second movable baffle are meshed in an inclined tooth shape.

[0008] Preferably, two sliding grooves are respectively opened on both sides of the liquid outlet, and sliding blocks adapted to the sliding grooves are respectively arranged on one sides of the first movable baffle and the second movable baffle close to the inner wall of the liquid outlet. Two positioning blocks are respectively fixedly installed on one side of the liquid outlet close to the oil storage cavity. A return spring is arranged between the two positioning blocks and the first movable baffle and the second movable baffle respectively.

[0009] Preferably, a sealing gasket is arranged at the opposite meshing position of the first movable baffle and the second movable baffle, and the sealing gasket is made of rubber.

[0010] Preferably, the tensioning assembly includes a fixing rod fixedly installed together between the two vertical plates, and the fixing rod is located at the rear lower part of the bidirectional threaded rod. A number of fixing blocks are fixedly sleeved on the outer surfaces of both sides of the fixing rod. One ends of the number of fixing blocks are slidably installed with movable blocks, and one ends of the movable blocks are fixedly installed with arc-shaped plates. When the number of arc-shaped plates are assembled together, they are arranged in a circular shape, and auxiliary connecting plates are embedded and installed between the two arc-shaped plates.

[0011] Preferably, rotating gears are also rotatably installed on both sides of the fixed rod. A number of arc-shaped grooves are formed on the rotating gears. A positioning post is arranged on one side of the movable block and is slidably installed inside the arc-shaped grooves. An extension plate is fixedly connected to one side of one of the fixed blocks. A meshing gear is rotatably installed on the extension plate. The meshing gear meshes with the rotating gear. One side of the guiding assembly is used to drive the meshing gear to rotate.

[0012] Preferably, the guiding module includes a lead screw rotatably installed between the two vertical plates. A first servo motor is also arranged on one side of one of the vertical plates. The output end of the first servo motor is fixedly connected to one side of the lead screw. A positioning rod is also arranged below the lead screw. The positioning rod is fixedly installed between the two vertical plates. A guiding block is threadedly connected to the lead screw. A guiding hole is formed in the guiding block. The heating module includes heating blocks arranged on both sides of the guiding hole. The bottom of the guiding block is slidably installed on the positioning rod. The other end of the lead screw passes through the vertical plate and is fixedly connected to a first pulley. A connecting rod is rotatably installed on one side of one of the vertical plates. One end of the connecting rod is fixedly connected to the meshing gear. The other end of the connecting rod is fixedly connected to a second pulley. A belt is commonly sleeved between the first pulley and the second pulley.

[0013] Preferably, limiting sleeves are sleeved near both ends of the periphery of the winding rod. The winding rod and the limiting sleeves are arranged in a shape of "I".

[0014] This application also discloses a finishing process applicable to colored cotton fabrics, which is applied to the above-mentioned anti-shrinkage finishing equipment for colored cotton fabrics, including the following steps: S1: The cotton fabric enters the equipment from the outside. After the tension is adjusted by the tensioning assembly, it is wound into the thread groove of the bidirectional threaded rod and is gradually advanced under the traction of the winding rod, so that the bidirectional threaded rod rotates passively to ensure smooth conveying. S2: The cotton fabric enters the immersion assembly. The centrifugal force of the bidirectional threaded rod drives the movable baffle to open, so that the anti-shrinkage resin flows from the liquid outlet into the oil separation cavity and is evenly coated on the surface of the cotton fabric through the seepage holes to ensure uniform anti-shrinkage treatment. S3: The cotton fabric coated with the anti-shrinkage resin enters the guiding assembly. The guiding module adjusts the direction of the fabric and prevents deviation. At the same time, the heating module dries and cures the fabric, so that the anti-shrinkage resin fully penetrates and is stably formed. S4: The guiding block moves horizontally along the lead screw, drives the fabric to be evenly wound, and synchronously drives the tensioning assembly to adjust the tension, ensuring that the fabric is evenly stressed during winding, preventing wrinkling or deformation, and improving the finishing quality. S5: After finishing, the cotton fabric is evenly wound onto the winding rod, the system stops running, and the fabric can be taken out for subsequent processing or packaging.

[0015] Advantages of the present invention: 1. For the shrinkage prevention finishing equipment and finishing process applicable to colored cotton fabrics, by setting a tensioning component used in cooperation with a guiding module, through the horizontal movement of the guiding block along the lead screw, the cotton fabric can be evenly wound around the winding rod, avoiding local accumulation, improving the uniformity of winding. The movement of the guiding block simultaneously drives the rotation of the first pulley, and is transmitted to the second pulley through a belt, enabling the connecting rod and the meshing gear to operate synchronously, and further driving the rotating gear to adjust the position of the movable block, realizing the dynamic change of the tensioning diameter, ensuring that the fabric always maintains an appropriate tension during the finishing process. When the guiding block moves away from the winding rod, the diameter of the tensioning component increases, reducing the tension on the side away from the winding rod, while the tension on the side close to the winding rod increases due to the decrease in the tensioning diameter, thereby dynamically compensating for the uneven fabric tension, improving the stability of fabric finishing. At the same time, the heating module dries the fabric while the guiding block moves, enabling the shrinkage prevention resin to be fully cured, preventing wrinkles and deformation, ultimately improving the finishing quality of the fabric, avoiding defects caused by uneven tension, and improving the flatness and shrinkage prevention effect of the finished product.

[0016] 2. For the shrinkage prevention finishing equipment and finishing process applicable to colored cotton fabrics, by setting an immersion component, the first movable baffle and the second movable baffle are meshed in a toothed shape, and the opening and closing of the liquid outlet are precisely controlled by centrifugal force. When the bidirectional lead screw rotates at a high speed, the centrifugal force overcomes the elastic force of the return spring, causing the movable baffle to open and evenly release the resin; when the rotation speed decreases or stops, the baffle returns to its position under the action of the spring to close the liquid outlet, effectively preventing the excessive outflow or dripping of the shrinkage prevention resin, reducing waste, and ensuring the stability of liquid release. The liquid outlet adopts an inward-narrow and outward-wide flared structure, which helps to enhance the fluid guiding effect, enabling the shrinkage prevention resin to form a fan-shaped distribution during spraying, covering a larger fabric surface, improving the wetting effect, and at the same time ensuring that the liquid can evenly penetrate into the thread grooves, improving the dyeing quality of the cotton fabric. In addition, this structure can achieve automatic adjustment of resin output. As the bidirectional lead screw rotates, the fabric continuously absorbs the shrinkage prevention resin during the forward movement, ensuring the stability and uniformity of dyeing, avoiding the problem of poor shrinkage prevention effect caused by unstable liquid flow rate or excessive spraying, improving the automation level of the equipment, and making the shrinkage prevention finishing process more efficient and controllable. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the first perspective of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the second perspective of the present invention; Figure 3 Schematic diagram of the structure of the bidirectional threaded rod of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at position A in; Figure 5 Schematic diagram of the planar structure of the immersion component of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at position B in; Figure 7 Schematic diagram of the structure of the tensioning component of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at position C in.

[0019] The markings in the figure are: 1, bottom plate; 2, vertical plate; 3, bidirectional threaded rod; 4, fixed rod; 5, first servo motor; 6, second servo motor; 7, winding rod; 8, limiting sleeve; 9, lead screw; 10, positioning rod; 11, guide block; 12, guide hole; 13, first pulley; 14, connecting rod; 15, second pulley; 16, belt; 17, oil storage cavity; 18, oil filling cavity; 19, oil injection hole; 20, liquid outlet; 21, positioning block; 22, first movable baffle; 23, second movable baffle; 24, gasket; 25, oil distribution cavity; 26, outer seepage hole; 27, fixed block; 28, movable block; 29, arc plate; 30, rotating gear; 31, arc groove; 32, positioning column; 33, extension plate; 34, meshing gear. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0022] As Figures 1 to 8 shown, a shrink-proof finishing device applicable to colored cotton fabrics includes a bottom plate 1. Vertical plates 2 are arranged at both ends of the bottom plate 1. One side of the vertical plate 2 is set to slope upward. A bidirectional threaded rod 3 is arranged on one side of one of the vertical plates 2. A first servo motor 5 and a second servo motor 6 are arranged on one side of one of the vertical plates 2. The output end of the second servo motor 6 penetrates through the vertical plate 2. The output end of the second servo motor 6 is fixedly connected to a winding rod 7. The winding rod 7 is used for winding and finishing cotton fabrics; an immersion component, which is arranged inside the bidirectional threaded rod 3 and is used for applying shrink-proof resin to the cotton fabrics; a tensioning component, which is arranged between the two vertical plates 2 and is used for adjusting the tension of the cotton fabrics during winding and finishing; a guiding component, which is arranged between the tensioning component and the winding rod 7. The guiding component includes a guiding module and a heating module. The guiding module is used for guiding and orienting the winding of the winding rod 7, and the heating module is used for heating and drying the cotton fabrics after the shrink-proof resin is applied. The cotton fabrics are first introduced into the device from the outside. After the tension is adjusted by the tensioning component, they enter the bidirectional threaded rod 3, wind along the thread grooves and gradually advance. As the winding rod 7 rotates, the cotton fabrics are pulled forward, causing the bidirectional threaded rod 3 to rotate passively under the traction of the fabrics to ensure smooth conveying. During the movement of the fabrics, they pass through the immersion component, evenly coated with shrink-proof resin, and continue to move forward into the guiding component. The guiding module in the guiding component ensures the correct direction of the fabrics and avoids deviation. At the same time, the heating module dries and cures the fabrics, enabling the shrink-proof resin to fully penetrate and stably form, improving the shrink-proof performance of the fabrics. The cotton fabrics after heating and drying finally enter the winding rod 7 and are evenly wound under the drive of the second servo motor 6. After finishing, they can be directly taken out for subsequent process treatment or packaging. By adjusting the tension of the fabrics through the tensioning component, an appropriate tension is maintained during the winding process to prevent the fabrics from wrinkling due to insufficient tension or deforming due to excessive tension, improving the finishing quality.

[0023] As Figures 3 to 6 shown, the immersion component includes an oil filling cavity 18, an oil storage cavity 17 and an oil distribution cavity 25 which are sequentially arranged inside the bidirectional threaded rod 3. An oil injection hole 19 is arranged inside the oil filling cavity 18, and a one-way injection valve is arranged inside the oil injection hole 19. The oil injection hole 19 penetrates into the inside of the oil storage cavity 17. A number of liquid outlets 20 are arranged inside the oil storage cavity 17. The number of liquid outlets 20 is used to inject the liquid anti-shrink resin into the oil distribution cavity 25 at intervals. A number of external infiltration holes 26 are arranged on the outer surface of the bidirectional threaded rod 3, and the number of external infiltration holes 26 is communicated with the oil distribution cavity 25. Each group of liquid outlets 20 has three, and the three liquid outlets 20 are arranged in a circumferential arrangement on the inner side of the outer wall of the oil storage cavity 17. The angle between the three liquid outlets 20 is 120 degrees. The liquid outlets 20 are arranged in a shape with a narrow inner side and a wide outer side in an eight-character shape. A first movable baffle 22 and a second movable baffle 23 are movably installed inside the liquid outlet 20. The first movable baffle 22 and the second movable baffle 23 are arranged oppositely, and the opposite positions of the first movable baffle 22 and the second movable baffle 23 are meshed in an oblique tooth shape. Two chutes are respectively arranged on both sides of the liquid outlet 20, and sliders adapted to the chutes are respectively arranged on the sides of the first movable baffle 22 and the second movable baffle 23 close to the inner wall of the liquid outlet 20. Two positioning blocks 21 are respectively fixedly installed on the side of the liquid outlet 20 close to the oil storage cavity 17. A return spring is arranged between the two positioning blocks 21 and the first movable baffle 22 and the second movable baffle 23 respectively. A sealing gasket 24 is arranged at the opposite meshing position of the first movable baffle 22 and the second movable baffle 23. The sealing gasket 24 is made of rubber material; The anti-shrinkage resin is first injected into the oil-filled cavity 18 through the oil injection hole 19 and enters the oil storage cavity 17 through the one-way injection valve. The resin liquid in the oil storage cavity 17 enters the oil distribution cavity 25 through the liquid outlet 20. When the device is not started, the first movable baffle 22 and the second movable baffle 23 are in a closed state under the action of the return spring to prevent the liquid from leaking out prematurely. When the bidirectional threaded rod 3 starts to rotate, the centrifugal force gradually acts on the movable baffle, causing the first movable baffle 22 and the second movable baffle 23 to slide along the chute and open, allowing the anti-shrinkage resin to enter the oil distribution cavity 25 through the liquid outlet 20 and penetrate into the thread groove inside the outer surface of the bidirectional threaded rod 3 through the outer leakage hole 26, wetting the cotton fabric wound around the threaded rod. As the bidirectional threaded rod 3 rotates and advances, the cotton fabric continuously absorbs the anti-shrinkage resin during the movement, ensuring uniform and effective anti-shrinkage treatment. When the rotational speed of the bidirectional threaded rod 3 decreases or stops, the centrifugal force disappears, and the first movable baffle 22 and the second movable baffle 23 close the liquid outlet 20 under the action of the return spring, stopping the liquid from flowing out and ensuring that the anti-shrinkage resin does not continue to leak, thus completing a stable and controllable impregnation process. Among them, through the hierarchical storage structure of the oil-filled cavity 18, the oil storage cavity 17, and the oil distribution cavity 25, the anti-shrinkage resin can be stably released and evenly penetrate into the surface of the cotton fabric through the outer leakage hole 26, avoiding the problem of uneven resin distribution in the traditional method and improving the quality of the anti-shrinkage treatment. Through the toothed meshing design of the first movable baffle 22 and the second movable baffle 23, the opening and closing of the liquid outlet 20 can be accurately controlled under the action of the centrifugal force. When the bidirectional threaded rod 3 rotates at a high speed, the centrifugal force overcomes the elastic force of the return spring, causing the movable baffle to open and release the resin; when the rotational speed decreases or stops, the baffle returns to its original position under the action of the spring to close the liquid outlet 20, effectively preventing the excessive outflow or dripping of the anti-shrinkage resin, reducing waste, and ensuring the stability of the liquid release. The liquid outlet 20 adopts an inward-narrow and outward-wide flared structure, which helps to enhance the fluid guiding effect, making the anti-shrinkage resin form a fan-shaped distribution during spraying, covering a larger fabric surface, improving the wetting effect, and at the same time ensuring that the liquid can evenly penetrate into the thread groove, improving the impregnation quality of the cotton fabric.

[0024] Such as Figure 2 , Figure 7 , Figure 8As shown, the tensioning assembly includes a fixing rod 4 fixedly installed between two vertical plates 2 in common, and the fixing rod 4 is located at the rear lower part of the bidirectional threaded rod 3. A number of fixing blocks 27 are fixedly sleeved on the outer surfaces on both sides of the fixing rod 4. One side of each of the number of fixing blocks 27 is slidably installed with a movable block 28. One end of the movable block 28 is fixedly installed with an arc-shaped plate 29. When a number of arc-shaped plates 29 are joined together, they are arranged in a circular shape. An auxiliary connecting plate is embedded and installed between every two arc-shaped plates 29. Rotating gears 30 are also rotatably installed on both sides of the fixing rod 4. A number of arc-shaped grooves 31 are formed on the rotating gears 30. A positioning post 32 is arranged on one side of the movable block 28 and is slidably installed inside the arc-shaped groove 31. One side of one of the fixing blocks 27 is fixedly connected with an extension plate 33. A meshing gear 34 is rotatably installed on the extension plate 33. The meshing gear 34 meshes with the rotating gear 30. One side of the guiding assembly is used to drive the meshing gear 34 to rotate; When the cotton fabric enters the shrink-proof finishing equipment, the winding rod 7 starts to rotate to pull the fabric forward, and at the same time drives the bidirectional threaded rod 3 to rotate. The cotton fabric gradually moves in the thread grooves of the bidirectional threaded rod 3 and undergoes the penetration of the shrink-proof resin. As the fabric is conveyed forward, the tensioning assembly on the fixing rod 4 starts to play a role. When the fabric passes through the arc-shaped plate 29, the movable block 28 will slide under the guidance of the fixing block 27, so that the arc-shaped plates 29 are gradually joined together to form a circular structure, forming a uniform tensioning area to ensure that the fabric is in an appropriate tensile state before winding. When it is necessary to adjust the tension size, the meshing gear 34 can be adjusted to rotate, driving the rotating gear 30 to rotate. The rotating gear 30 drives the positioning post 32 to move. The positioning post 32 moves inside the arc-shaped groove 31. A number of arc-shaped grooves 31 are arranged in a circular pattern on the rotating gear 30 and are arc-shaped. Therefore, when the positioning post 32 drives the movable block 28 to move, the diameter change can be realized to achieve different tensioning degrees.

[0025] As Figure 2 、 Figure 7 、 Figure 8As shown in the figure, the guiding module includes a lead screw 9 rotatably installed between two vertical plates 2. A first servo motor 5 is further provided on one side of one of the vertical plates 2. The output end of the first servo motor 5 is fixedly connected to one side of the lead screw 9. A positioning rod 10 is further provided below the lead screw 9. The positioning rod 10 is fixedly installed between the two vertical plates 2. A guiding block 11 is threadedly connected to the lead screw 9. A guiding hole 12 is formed in the guiding block 11. The heating module includes heating blocks arranged on both sides of the guiding hole 12. The bottom of the guiding block 11 is slidably installed on the positioning rod 10. The other end of the lead screw 9 passes through the vertical plate 2 and is fixedly connected to a first pulley 13. A connecting rod 14 is rotatably installed on one side of one of the vertical plates 2. One end of the connecting rod 14 is fixedly connected to a meshing gear 34. The other end of the connecting rod 14 is fixedly connected to a second pulley 15. A belt 16 is commonly sleeved between the first pulley 13 and the second pulley 15. Limiting sleeves 8 are sleeved on the periphery of the winding rod 7 near both ends. The winding rod 7 and the limiting sleeves 8 are arranged in an I shape; When the device is started, the first servo motor 5 drives the lead screw 9 to rotate, causing the guiding block 11 to horizontally move along the threading direction of the lead screw 9. The guiding block 11 slides smoothly under the guidance of the positioning rod 10, enabling the cotton fabric to wind back and forth on the winding rod 7 instead of winding in one place, making it more uniform. The horizontal movement of the guiding block 11 drives the synchronous rotation of the first pulley 13. The first pulley 13 is transmitted to the second pulley 15 through the belt 16, causing the second pulley 15 to drive the connecting rod 14 to rotate, thereby driving the meshing gear 34 to rotate. The rotation of the meshing gear 34 directly acts on the rotating gear 30, causing the rotating gear 30 to drive the positioning column 32 to slide inside the arc-shaped groove 31, adjusting the position of the movable block 28, and thus controlling the tensioning diameter of the arc-shaped plate 29. When the guiding block 11 is away from the winding rod 7, the diameter of the tensioning assembly increases, making the tension on the side away from the winding rod 7 smaller, while the tension on the side closer to the winding rod 7 becomes larger due to the smaller stroke, thereby dynamically compensating for the uneven fabric tension and ensuring that the fabric is evenly stressed throughout the finishing process. During the winding process, the heating module works synchronously, using the heating blocks installed on both sides of the guiding block 11 to dry the fabric, ensuring the full curing of the shrink-proof resin and improving the finishing effect. As the cotton fabric is gradually wound, the guiding block 11 moves back and forth continuously, driving the tensioning assembly to dynamically adjust the tension, enabling the fabric to always maintain an appropriate tension, avoiding wrinkles or deformations caused by tension changes, and improving the flatness and quality of the final product.

[0026] This application also discloses a finishing process applicable to colored cotton fabrics, which is applied to the above-mentioned shrink-proof finishing equipment for colored cotton fabrics, including the following steps: S1: The cotton fabric enters the device from the outside. After the tension is adjusted by the tensioning assembly, it is wound into the thread groove of the bidirectional threaded rod 3 and gradually advanced under the traction of the winding rod 7, causing the bidirectional threaded rod 3 to rotate passively to ensure smooth conveying; S2: The cotton fabric enters the immersion component. The centrifugal force of the bidirectional threaded rod 3 drives the movable baffle to open, allowing the shrink-proof resin to flow from the liquid outlet 20 into the oil separation chamber 25 and be evenly coated on the surface of the cotton fabric through the seepage holes 26, ensuring uniform shrink-proof treatment. S3: The cotton fabric coated with the shrink-proof resin enters the guiding component. The guiding module adjusts the fabric direction and prevents deviation. Meanwhile, the heating module dries and cures the fabric, enabling the shrink-proof resin to fully penetrate and form stably. S4: The guiding block 11 moves horizontally along the lead screw 9, driving the fabric to be evenly wound. Meanwhile, it synchronously drives the tensioning component to adjust the tension, ensuring uniform force on the fabric during winding, preventing wrinkling or deformation, and improving the finishing quality. S5: After finishing, the cotton fabric is evenly wound onto the winding rod 7, the system stops running, and the fabric can be taken out for subsequent processing or packaging. Compared with the prior art, the rotation of the bidirectional threaded rod 3 drives the smooth transportation of the cotton fabric, and the centrifugal force is used to accurately control the release of the shrink-proof resin, ensuring uniform impregnation on the fabric surface and avoiding the problem of uneven resin distribution in traditional equipment. At the same time, the guiding module effectively prevents fabric deviation, making the winding more uniform, and combines with the tensioning component to achieve dynamic adjustment of tension, avoiding wrinkles or deformation of the fabric caused by tension changes and improving the finishing quality. In addition, the heating module dries and cures synchronously, enabling the shrink-proof resin to fully penetrate and form stably, enhancing the shrink-proof performance of the fabric. Compared with traditional equipment, this application can automatically adjust the tension, optimize the fabric transportation and winding processes, reduce manual intervention, improve production efficiency, and ensure the stability and quality of fabric finishing.

[0027] Those of ordinary skill in the art should understand that: The discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0028] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A shrink-proof finishing device applicable to colored cotton fabrics, characterized in that, Comprising: A bottom plate (1), vertical plates (2) are arranged at both ends of the bottom plate (1), one side of the vertical plate (2) is set to slope upwards, a bidirectional threaded rod (3) is arranged on one side of one of the vertical plates (2), a second servo motor (6) is arranged on one side of one of the vertical plates (2), the output end of the second servo motor (6) penetrates through the vertical plate (2), and the output end of the second servo motor (6) is fixedly connected with a winding rod (7), and the winding rod (7) is used for winding and arranging cotton fabrics; An immersion assembly, which is arranged inside the bidirectional threaded rod (3), and the immersion assembly is used to apply shrink-proof resin to the cotton fabric; A tensioning assembly, which is arranged between the two vertical plates (2), and the tensioning assembly is used to adjust the tension of the cotton fabric during winding and arranging; A guiding assembly, which is arranged between the tensioning assembly and the winding rod (7), the guiding assembly includes a guiding module and a heating module, the guiding module is used to guide and orient the winding of the winding rod (7), and the heating module is used to heat and dry the cotton fabric after applying the shrink-proof resin.

2. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 1, characterized in that, The immersion assembly includes an oil filling cavity (18), an oil storage cavity (17) and an oil distribution cavity (25) sequentially opened inside the bidirectional threaded rod (3), an oil injection hole (19) is arranged inside the oil filling cavity (18), and a one-way injection valve is arranged inside the oil injection hole (19), the oil injection hole (19) penetrates into the inside of the oil storage cavity (17), a plurality of groups of liquid outlets (20) are opened inside the oil storage cavity (17), and the plurality of groups of liquid outlets (20) are used to inject liquid shrink-proof resin into the oil distribution cavity (25) at intervals, a plurality of outer seepage holes (26) are opened on the outer surface of the bidirectional threaded rod (3), and the plurality of outer seepage holes (26) are communicated with the oil distribution cavity (25), each group of liquid outlets (20) is provided with three, and the three liquid outlets (20) are arranged in a circumferential arrangement on the inner side of the outer wall of the oil storage cavity (17), and the angle between the three liquid outlets (20) is 120 degrees.

3. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 2, characterized in that, The liquid outlet (20) is arranged in a shape of narrow inside and wide outside in an eight-character shape, a first movable baffle (22) and a second movable baffle (23) are movably installed inside the liquid outlet (20), the first movable baffle (22) and the second movable baffle (23) are arranged oppositely, and the opposite positions of the first movable baffle (22) and the second movable baffle (23) are meshed in an oblique tooth shape.

4. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 3, characterized in that, Two chutes are respectively opened on both sides of the liquid outlet (20), and sliders adapted to the chutes are respectively arranged on one side of the first movable baffle (22) and the second movable baffle (23) close to the inner wall of the liquid outlet (20), two positioning blocks (21) are respectively fixedly installed on one side of the liquid outlet (20) close to the oil storage cavity (17), and a return spring is arranged between the two positioning blocks (21) and the first movable baffle (22) and the second movable baffle (23) respectively.

5. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 4, characterized in that, A gasket (24) is arranged at the opposing meshing position of the first movable baffle (22) and the second movable baffle (23), and the gasket (24) is made of rubber material.

6. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 1, characterized in that, The tensioning assembly includes a fixed rod (4) fixedly installed between the two vertical plates (2) together, and the fixed rod (4) is located below and behind the bidirectional threaded rod (3). A plurality of fixed blocks (27) are fixedly sleeved on the outer surfaces of both sides of the fixed rod (4). One side of the plurality of fixed blocks (27) is slidably installed with a movable block (28). One end of the movable block (28) is fixedly installed with an arc-shaped plate (29). When the plurality of arc-shaped plates (29) are joined together, they are circularly arranged, and an auxiliary connecting plate is embedded and installed between the two arc-shaped plates (29).

7. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 6, characterized in that, Rotating gears (30) are also rotatably installed on both sides of the fixed rod (4). A plurality of arc-shaped grooves (31) are formed in the rotating gears (30). A positioning post (32) slidably installed inside the arc-shaped groove (31) is arranged on one side of the movable block (28). One side of one of the fixed blocks (27) is fixedly connected with an extension plate (33). A meshing gear (34) is rotatably installed on the extension plate (33). The meshing gear (34) meshes with the rotating gear (30), and one side of the guiding assembly is used to drive the meshing gear (34) to rotate.

8. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 7, characterized in that, The guiding module includes a lead screw (9) rotatably installed between the two vertical plates (2). A first servo motor (5) is also arranged on one side of one of the vertical plates (2). The output end of the first servo motor (5) is fixedly connected with one side of the lead screw (9). A positioning rod (10) is also arranged below the lead screw (9). The positioning rod (10) is fixedly installed between the two vertical plates (2). A guiding block (11) is threadedly connected to the lead screw (9). A guiding hole (12) is formed in the guiding block (11). The heating module includes heating blocks arranged on both sides of the guiding hole (12). The bottom of the guiding block (11) is slidably installed on the positioning rod (10). The other end of the lead screw (9) passes through the vertical plate (2) and is fixedly connected with a first belt pulley (13). A connecting rod (14) is rotatably installed on one side of one of the vertical plates (2). One end of the connecting rod (14) is fixedly connected with the meshing gear (34). The other end of the connecting rod (14) is fixedly connected with a second belt pulley (15). A belt (16) is jointly sleeved between the first belt pulley (13) and the second belt pulley (15).

9. The anti-shrinkage finishing equipment applicable to colored cotton fabrics according to claim 1, characterized in that, Limit sleeves (8) are sleeved near both ends of the periphery of the winding rod (7), and the winding rod (7) and the limit sleeves (8) are arranged in an I-shaped configuration.

10. A finishing process applicable to colored cotton fabrics, which is applied to the shrinkage-proof finishing equipment for colored cotton fabrics described in any one of claims 1-9, and is characterized in that, Including the following steps: S1: The cotton fabric enters the device from the outside. After the tension is adjusted by the tensioning assembly, it is wound into the thread groove of the bidirectional threaded rod (3), and is gradually advanced under the traction of the winding rod (7), so that the bidirectional threaded rod (3) rotates passively to ensure smooth conveying; S2: The cotton fabric enters the immersion component. The centrifugal force of the bidirectional threaded rod (3) drives the movable baffle to open, allowing the shrink-proof resin to flow from the liquid outlet (20) into the oil separation chamber (25), and evenly coating the surface of the cotton fabric through the seepage holes (26) to ensure uniform shrink-proof treatment. S3: The cotton fabric coated with the shrink-proof resin enters the guiding component. The guiding module adjusts the fabric direction and prevents deviation. At the same time, the heating module dries and cures the fabric, enabling the shrink-proof resin to fully penetrate and form stably. S4: The guiding block (11) moves horizontally along the lead screw (9), driving the fabric to be wound evenly, and simultaneously driving the tensioning component to adjust the tension, ensuring uniform stress on the fabric during winding, preventing wrinkling or deformation, and improving the finishing quality. S5: After finishing, the cotton fabric is evenly wound onto the winding rod (7), the system stops running, and the fabric can be taken out for subsequent processing or packaging.

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