Knitted fabric anti-wrinkling device before printing and dyeing

Abstract

The utility model provides a knitted fabric printing and dyeing before uncoiling anti -wrinkle device. Knitted fabric printing and dyeing before uncoiling anti -wrinkle device includes: mounting bracket, docking axle, docking axle rotation is installed on mounting bracket, docking axle is fixedly connected with the output shaft of rotating electrical machine fixed installation on mounting bracket, flat roller, flat roller rotation is installed on mounting bracket, and sets up in higher than docking axle's position, heating rod, heating rod fixed installation is in mounting bracket, and extends to flat roller, is used for ironing knitted fabric, guide shaft, guide shaft rotation is installed on mounting bracket, is used for guiding after the knitted fabric of flat roller contact. The utility model provides knitted fabric printing and dyeing before uncoiling anti -wrinkle device has the advantage that can keep knitted fabric flat when uncoiling, improves the evenness of dyeing.

Description

Technical Field

[0001] This utility model relates to the field of knitted fabric technology, and in particular to a pre-printing and anti-wrinkle device for knitted fabrics. Background Technology

[0002] Unwinding is a crucial process in textile printing, dyeing, and finishing. It involves smoothly and continuously unwinding a roll of knitted or woven fabric from a bobbin, providing a smooth surface for subsequent printing, dyeing, setting, and cutting processes. The quality of this process directly affects the appearance and performance of the final product.

[0003] Due to the special nature of knitted fabrics, wrinkles will occur during the unwinding process, leading to uneven printing and dyeing, color differences, and defects in the knitted fabric.

[0004] Therefore, it is necessary to provide a new anti-wrinkle device for pre-printing and dyeing of knitted fabrics to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problem of wrinkles in knitted fabrics during the unwinding process, which leads to color differences, this utility model provides a pre-printing unwinding anti-wrinkle device for knitted fabrics.

[0006] The present invention provides a pre-printing anti-wrinkle device for knitted fabrics, comprising: a mounting frame; a docking shaft rotatably mounted on the mounting frame and fixedly connected to the output shaft of a rotary motor fixedly mounted on the mounting frame; a flattening roller rotatably mounted on the mounting frame and positioned above the docking shaft; a heating rod fixedly mounted on the mounting frame and extending into the flattening roller for ironing the knitted fabric; a guide shaft rotatably mounted on the mounting frame for guiding the knitted fabric after contact with the flattening roller; and an anti-wrinkle conveying mechanism disposed on the mounting frame and corresponding to the guide shaft.

[0007] Preferably, the anti-wrinkle conveying mechanism includes a squeezing roller, a drive gear, and a drive motor. The two squeezing rollers are rotatably mounted on the mounting frame and are correspondingly arranged with the guide shaft for flattening and conveying the knitted fabric. The two drive gears are respectively fixedly mounted on the shafts of the two squeezing rollers and mesh with each other. The drive motor is fixedly mounted on the mounting frame, and the output shaft of the drive motor is fixedly connected to the shaft of one of the squeezing rollers through a coupling.

[0008] Preferably, a heat-conducting pipe is fixedly installed inside the leveling roller, and the heat-conducting pipe is sleeved outside the heating rod.

[0009] Preferably, the mounting frame has a sliding groove located below the docking shaft. A fixing groove is slidably mounted on the sliding groove. An arc-shaped plate is fixedly mounted at the open end of the fixing groove. An auxiliary drive mechanism is provided on the arc-shaped plate to drive the knitted fabric roll to rotate and unwind. An electric telescopic rod is fixedly mounted on the mounting frame, and the output shaft of the electric telescopic rod is fixedly connected to the bottom of the fixing groove.

[0010] Preferably, the auxiliary drive mechanism includes a movable opening, a drive roller, and a transmission mechanism. The movable opening is formed on the arc-shaped plate, the drive roller is rotatably mounted in the fixed groove and extends into the arc-shaped plate through the movable opening, and the transmission mechanism is disposed in the fixed groove to drive the drive roller to rotate.

[0011] Preferably, the transmission mechanism includes a servo motor, a sprocket, and a transmission chain. The servo motor is fixedly installed in the fixed groove, the sprocket is fixedly installed on the output shaft of the servo motor and the shaft of the drive roller, and the transmission chain is sleeved on the sprocket.

[0012] Preferably, a fan is fixedly installed on the mounting frame, an exhaust pipe is fixedly installed at the exhaust end of the fan, the other end of the exhaust pipe extends into the mounting frame, an exhaust port is opened on the exhaust pipe, and the exhaust pipe is arranged between the leveling roller and the guide shaft.

[0013] Compared with related technologies, the anti-wrinkle device for pre-printing and dyeing of knitted fabrics provided by this utility model has the following beneficial effects: This utility model provides a device for preventing wrinkles before printing and dyeing knitted fabrics: 1. Through a multi-stage anti-wrinkle structure including flattening rollers, heating rods, fans, and extrusion rollers, as well as a uniform heat transfer design, wrinkles are significantly improved and uniformly eliminated, avoiding printing and dyeing problems. 2. It adopts a main drive method that combines a docking shaft and a rotary motor, and is also equipped with an auxiliary drive mechanism. The dual drive improves unwinding efficiency and stability, and the adjustable structure enhances adaptability to fabric rolls of different specifications. 3. The device has automatic adjustment and precise power control functions, which improves the degree of automation; reasonable guidance and component coordination ensure continuous and stable production, and improve the overall quality and efficiency of pre-treatment of knitted fabrics for dyeing and printing. Attached Figure Description

[0014] Figure 1 A front view schematic diagram of a preferred embodiment of the anti-wrinkle device for pre-printing and dyeing of knitted fabrics provided by this utility model. Figure 2 A front sectional view of a preferred embodiment of the anti-wrinkle device for pre-printing and dyeing of knitted fabrics provided by this utility model. Figure 3for Figure 2 The diagram shows an enlarged view of part A.

[0015] The following are the labels in the diagram: 1. Mounting bracket; 2. Connecting shaft; 3. Rotary motor; 4. Leveling roller; 5. Heating rod; 6. Guide shaft; 7. Extrusion roller; 8. Drive gear; 9. Drive motor; 10. Slide groove; 11. Fixed groove; 12. Arc plate; 13. Electric telescopic rod; 14. Movable opening; 15. Drive roller; 16. Servo motor; 17. Sprocket; 18. Transmission chain; 19. Fan; 20. Exhaust pipe. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figures 1-3 ,in, Figure 1 A front view schematic diagram of a preferred embodiment of the anti-wrinkle device for pre-printing and dyeing of knitted fabrics provided by this utility model. Figure 2 A front sectional view of a preferred embodiment of the anti-wrinkle device for pre-printing and dyeing of knitted fabrics provided by this utility model. Figure 3 for Figure 2 The diagram shows an enlarged view of part A.

[0018] The anti-wrinkle device for knitted fabric before printing and dyeing includes: a mounting frame 1; a docking shaft 2, which is rotatably mounted on the mounting frame 1 and fixedly connected to the output shaft of a rotary motor 3 fixedly mounted on the mounting frame 1; a flattening roller 4, which is rotatably mounted on the mounting frame 1 and positioned above the docking shaft 2; a heating rod 5, which is fixedly mounted on the mounting frame 1 and extends into the flattening roller 4 for ironing the knitted fabric; a guide shaft 6, which is rotatably mounted on the mounting frame 1 for guiding the knitted fabric after contact with the flattening roller 4; and an anti-wrinkle conveying mechanism, which is mounted on the mounting frame 1 and corresponds to the guide shaft 6. The mounting frame 1 serves as the supporting structure for the entire anti-wrinkle device, providing a mounting base for other components. Driven by the rotary motor 3, the docking shaft 2 can rotate the rolled knitted fabric placed on it, achieving smooth and continuous unfolding of the fabric and providing a basic fabric conveying action for subsequent anti-wrinkle and printing and dyeing processes. When the knitted fabric unfolded from the docking shaft 2 comes into contact with the leveling roller 4, the leveling roller 4, through its own rotation and friction with the fabric, initially smooths the fabric, reducing wrinkles on the fabric surface and providing better conditions for subsequent heating ironing and further wrinkle-resistant treatment. The heating rod 5 generates heat, raising the surface temperature of the leveling roller 4. When the knitted fabric comes into contact with the heated leveling roller 4, the heat is used to iron the fabric, further eliminating wrinkles on the fabric surface, making the fabric smoother, effectively avoiding uneven dyeing and color difference problems caused by wrinkles, and improving the quality of the knitted fabric. The guide shaft 6 can change the fabric's conveying direction, allowing the fabric to enter the subsequent wrinkle-resistant conveying mechanism along a predetermined path, ensuring smooth fabric conveying throughout the device. The wrinkle-resistant conveying mechanism further conveys and wrinkle-resistant the fabric.

[0019] The wrinkle-resistant conveying mechanism includes squeeze rollers 7, drive gears 8, and a drive motor 9. Two squeeze rollers 7 are rotatably mounted on the mounting frame 1 and correspondingly arranged with the guide shaft 6, used to flatten and convey the knitted fabric. Two drive gears 8 are respectively fixedly mounted on the shafts of the two squeeze rollers 7 and mesh with each other. The drive motor 9 is fixedly mounted on the mounting frame 1, and the output shaft of the drive motor 9 is fixedly connected to the shaft of one of the squeeze rollers 7 via a coupling. After the knitted fabric is guided by the guide shaft 6, it enters between the two squeeze rollers 7. The squeeze rollers 7 apply pressure to the fabric through mutual squeezing, effectively flattening any remaining fine wrinkles on the fabric and making it smoother. Simultaneously, during the squeezing process, the rotation of the squeeze rollers 7 drives the fabric forward, ensuring that the fabric can continuously and stably enter subsequent processes. The meshing design of the drive gears 8 allows the two squeeze rollers 7 to rotate synchronously, ensuring that the two squeeze rollers 7 have consistent speed and coordinated movements when flattening the fabric. The drive motor 9 provides the power source for the entire wrinkle-resistant conveying mechanism, ensuring the stability and efficiency of the production process.

[0020] A heat-conducting pipe is fixedly installed inside the leveling roller 4, and the heat-conducting pipe is sleeved outside the heating rod 5. The heat generated by the heating rod 5 can be evenly transferred to the surface of the leveling roller 4 through the heat-conducting pipe, making the surface temperature of the leveling roller 4 uniform and stable. When the knitted fabric comes into contact with the heated leveling roller 4, the uniform heat is used to iron the fabric, further eliminating wrinkles on the fabric surface, making the fabric smoother, effectively avoiding poor ironing effect and fabric damage caused by excessively high or low local temperatures, and improving the quality of the knitted fabric.

[0021] The mounting frame 1 has a sliding groove 10 located below the docking shaft 2. A fixing groove 11 is slidably mounted on the sliding groove 10, and an arc-shaped plate 12 is fixedly mounted at the open end of the fixing groove 11. An auxiliary drive mechanism is provided on the arc-shaped plate 12 to drive the knitted fabric roll to rotate and unwind. An electric telescopic rod 13 is fixedly mounted on the mounting frame 1, and the output shaft of the electric telescopic rod 13 is fixedly connected to the bottom of the fixing groove 11. Through the guiding action of the sliding groove 10, the fixing groove 11 can move stably in a specific direction, thereby adjusting the relative position of the arc-shaped plate 12 and the knitted fabric roll to accommodate knitted fabric rolls of different specifications and improve the versatility of the device. The fixing groove 11, as a component connecting the arc-shaped plate 12 and the electric telescopic rod 13, realizes auxiliary fixing and position adjustment of the knitted fabric roll. The curved plate 12 can closely fit the knitted fabric roll, and under the action of the auxiliary drive mechanism, it can better drive the knitted fabric roll to rotate and unwind. At the same time, it provides a certain degree of support and stability to the knitted fabric roll, preventing the fabric roll from shaking or shifting during rotation and ensuring a smooth unwinding process. The auxiliary drive mechanism can generate friction with the surface of the knitted fabric roll, providing additional power for the rotation of the fabric roll, reducing the burden on the docking shaft 2 and the rotary motor 3, and improving unwinding efficiency and stability. Through the automatic control of the electric telescopic rod 13, it can quickly and accurately adapt to knitted fabric rolls of different specifications, improving the automation level and production efficiency of the device.

[0022] The auxiliary drive mechanism includes a movable opening 14, a drive roller 15, and a transmission mechanism. The movable opening 14 is formed on the arc-shaped plate 12. The drive roller 15 is rotatably mounted in the fixed groove 11 and extends into the arc-shaped plate 12 through the movable opening 14. The transmission mechanism is located in the fixed groove 11 and is used to drive the drive roller 15 to rotate. The movable opening 14 provides a channel for the drive roller 15 to extend from the fixed groove 11 into the arc-shaped plate 12 and contact the knitted fabric roll, ensuring that the drive roller 15 can pass smoothly and make good contact with the fabric roll, and ensuring that the auxiliary drive mechanism can stably and effectively drive the fabric roll to rotate. The drive roller 15 rotates under the drive of the transmission mechanism, and provides direct power for the rotation of the fabric roll through friction with the surface of the fabric roll, assisting the docking shaft 2 and the rotary motor 3 in driving the fabric roll to unwind. Especially when handling larger or heavier knitted fabric rolls, the drive roller 15 can share some of the power demand, ensuring that the fabric roll rotates and unwinds smoothly, improving unwinding efficiency and stability. The transmission mechanism can accurately and stably transmit the power from the power source to the drive roller 15, so as to realize the smooth rotation of the drive roller 15, ensure that the fabric roll is subjected to uniform force during the unwinding process, and improve the quality and stability of the fabric unwinding.

[0023] The transmission mechanism includes a servo motor 16, a sprocket 17, and a transmission chain 18. The servo motor 16 is fixedly installed in the fixing groove 11, and the sprocket 17 is fixedly installed on the output shaft of the servo motor 16 and the shaft of the drive roller 15. The transmission chain 18 is sleeved on the sprocket 17. The servo motor 16, as the power source of the transmission mechanism, has high-precision speed control and good response performance, providing stable and reliable power to the drive roller 15, achieving precise control of the rotation speed of the knitted fabric roll, and ensuring the smoothness and uniformity of the fabric unwinding process. The sprocket 17, as the transmission component of the transmission chain 18, can accurately transmit the power of the servo motor 16 to the drive roller 15 through the transmission chain 18. Its precise tooth design and machining accuracy ensure the accuracy and stability of the transmission, avoiding slippage during the transmission process, enabling the drive roller 15 to rotate synchronously with the servo motor 16, improving transmission efficiency and reliability. The transmission chain 18 connects the two sprockets 17 to realize power transmission, which helps improve the rotational stability of the drive roller 15.

[0024] A fan 19 is fixedly mounted on the mounting frame 1. An exhaust pipe 20 is fixedly mounted on the exhaust end of the fan 19, and the other end of the exhaust pipe 20 extends into the mounting frame 1. An exhaust port is provided on the exhaust pipe 20, which is positioned between the flattening roller 4 and the guide shaft 6. The fan 19 provides sufficient airflow and pressure for subsequent fabric drying to meet the needs of rapid drying and further flattening. The exhaust pipe 20 serves as an airflow delivery channel, guiding the airflow discharged from the fan 19 to a specific location, ensuring accurate application of the airflow to the knitted fabric after treatment by the flattening roller 4. The exhaust port on the exhaust pipe 20 evenly disperses the airflow, expanding its coverage area on the fabric and improving the processing effect. The airflow applies pressure to the fabric surface, further flattening the fabric, eliminating any remaining fine wrinkles, and making the fabric smoother, thus providing higher quality fabric for subsequent dyeing and printing processes.

[0025] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0026] The working principle of the pre-printing and anti-wrinkle device for knitted fabrics provided by this utility model is as follows: In use, the operator first places the rolled knitted fabric on the docking shaft 2, and then controls the extension and retraction of its output shaft through the adjustment function of the electric telescopic rod 13, which drives the fixing groove 11 to slide on the slide groove 10, so that the arc plate 12 at the opening end of the fixing groove 11 is tightly attached to the outer surface of the knitted fabric roll, thereby achieving auxiliary fixing and precise position adjustment of knitted fabric rolls of different specifications.

[0027] When the rotary motor 3 is turned on, its output shaft drives the docking shaft 2 to rotate, causing the knitted fabric roll placed on the docking shaft 2 to begin unwinding. Simultaneously, the servo motor 16 in the auxiliary drive mechanism is activated, and the sprocket 17 on the output shaft of the servo motor 16 rotates accordingly. This rotation, via the transmission chain 18, drives the sprocket 17 on the drive roller 15 shaft to rotate, thus causing the drive roller 15 to rotate. The drive roller 15 is in close contact with the surface of the knitted fabric roll, relying on friction to provide additional power for the fabric roll's rotation. This assists the docking shaft 2 and the rotary motor 3 in smoothly unwinding the fabric roll, effectively improving unwinding efficiency and stability, especially for larger or heavier knitted fabric rolls.

[0028] The knitted fabric unfolded from the docking shaft 2 gradually rises and comes into contact with the leveling roller 4. The leveling roller 4 rotates under the friction of the fabric, providing initial smoothing. Simultaneously, the heating rod 5 is energized and generates heat, which is evenly transferred to the surface of the leveling roller 4 through a heat pipe, raising its surface temperature. When the knitted fabric comes into contact with the heated leveling roller 4, the uniform heat irons the fabric, further eliminating wrinkles on its surface.

[0029] After the fabric is ironed by the flattening roller 4, it arrives at the exhaust pipe 20 located between the flattening roller 4 and the guide shaft 6. At this time, the fan 19 is turned on. The fan 19 draws in air from the surrounding environment, pressurizes it, and discharges it through the exhaust end. The airflow is transported through the exhaust pipe 20 and blown out evenly from the exhaust port on the exhaust pipe 20, acting on the knitted fabric.

[0030] After being processed by the exhaust duct 20, the fabric changes its conveying direction under the guidance of the guide shaft 6 and enters the anti-wrinkle conveying mechanism according to the predetermined path. The drive motor 9 in the anti-wrinkle conveying mechanism starts, and its output shaft drives the drive gear 8 to rotate. Since the two drive gears 8 mesh with each other, the two squeeze rollers 7 rotate synchronously. The knitted fabric enters between the two squeeze rollers 7, and the squeeze rollers 7 squeeze each other to apply pressure to the fabric, effectively pressing down the fine wrinkles remaining on the fabric. At the same time, the rotation of the squeeze rollers 7 drives the fabric to be continuously and stably conveyed forward, ensuring that the fabric can smoothly enter the subsequent printing and dyeing processes.

[0031] Compared with related technologies, the anti-wrinkle device for pre-printing and dyeing of knitted fabrics provided by this utility model has the following beneficial effects: This utility model provides a pre-printing and anti-wrinkle device for knitted fabrics. Through a multi-stage anti-wrinkle structure including a flat roller, a heating rod, a fan, and a squeezing roller, as well as a uniform heat transfer design, it significantly improves and evenly eliminates wrinkles, thus avoiding printing and dyeing problems. It adopts a main drive method that combines a docking shaft and a rotary motor, and is also equipped with an auxiliary drive mechanism. The dual drive improves unwinding efficiency and stability, and the adjustable structure enhances adaptability to fabric rolls of different specifications. The device features automatic adjustment and precise power control, enhancing automation; reasonable guidance and component coordination ensure continuous and stable production, improving the overall quality and efficiency of pre-treatment for knitted fabrics.

[0032] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-printing and anti-wrinkle device for knitted fabrics, characterized in that, include: Mounting rack; A docking shaft is rotatably mounted on the mounting bracket, and the docking shaft is fixedly connected to the output shaft of a rotary motor fixedly mounted on the mounting bracket; A leveling roller is rotatably mounted on the mounting frame and positioned above the docking shaft; A heating rod, which is fixedly mounted on the mounting frame and extends into the flattening roller, is used for ironing knitted fabrics; A guide shaft, rotatably mounted on the mounting bracket, is used to guide the knitted fabric after it comes into contact with the leveling roller; A wrinkle-resistant conveying mechanism is mounted on the mounting frame and corresponds to the guide shaft.

2. The anti-wrinkle device for pre-printing and dyeing of knitted fabrics according to claim 1, characterized in that, The wrinkle-resistant conveying mechanism includes a squeezing roller, a drive gear, and a drive motor. Two squeezing rollers are rotatably mounted on the mounting frame and are correspondingly arranged with the guide shaft for flattening and conveying the knitted fabric. Two drive gears are respectively fixedly mounted on the shafts of the two squeezing rollers and mesh with each other. The drive motor is fixedly mounted on the mounting frame, and the output shaft of the drive motor is fixedly connected to the shaft of one of the squeezing rollers through a coupling.

3. The anti-wrinkle device for pre-printing and dyeing of knitted fabrics according to claim 1, characterized in that, A heat-conducting pipe is fixedly installed inside the leveling roller, and the heat-conducting pipe is sleeved outside the heating rod.

4. The anti-wrinkle device for pre-printing and dyeing of knitted fabrics according to claim 1, characterized in that, The mounting frame has a sliding groove located below the docking shaft. A fixing groove is slidably mounted on the sliding groove. An arc-shaped plate is fixedly mounted at the open end of the fixing groove. An auxiliary drive mechanism is provided on the arc-shaped plate to drive the knitted fabric roll to rotate and unwind. An electric telescopic rod is fixedly mounted on the mounting frame. The output shaft of the electric telescopic rod is fixedly connected to the bottom of the fixing groove.

5. The anti-wrinkle device for pre-printing and dyeing of knitted fabrics according to claim 4, characterized in that, The auxiliary drive mechanism includes a movable opening, a drive roller, and a transmission mechanism. The movable opening is opened on the arc-shaped plate. The drive roller is rotatably mounted in the fixed groove and extends into the arc-shaped plate through the movable opening. The transmission mechanism is disposed in the fixed groove and is used to drive the drive roller to rotate.

6. The anti-wrinkle device for pre-printing and dyeing of knitted fabrics according to claim 5, characterized in that, The transmission mechanism includes a servo motor, a sprocket, and a transmission chain. The servo motor is fixedly installed in the fixed groove, the sprocket is fixedly installed on the output shaft of the servo motor and the shaft of the drive roller, and the transmission chain is sleeved on the sprocket.

7. The anti-wrinkle device for pre-printing and dyeing of knitted fabrics according to claim 1, characterized in that, A fan is fixedly installed on the mounting frame, and an exhaust pipe is fixedly installed at the exhaust end of the fan. The other end of the exhaust pipe extends into the mounting frame, and an exhaust port is opened on the exhaust pipe. The exhaust pipe is located between the leveling roller and the guide shaft.

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