Cotton yarn sizing device

Abstract

The invention discloses a sizing device for cotton yarns, which is characterized in that after slurry is uniformly coated in a sizing tank by using a first electric transmission roller, the yarns pass through an extrusion roller and an extrusion roller in a pretreatment box, so that redundant slurry is effectively removed, and uniform distribution of the slurry is ensured; the curing and collecting assembly adopts a first abutting strip and a second abutting strip in a curing frame controlled by a servo motor, the two abutting strips automatically adjust contact according to temperature data of the yarn, it is ensured that the yarn is preliminarily cured at the proper temperature, the dependence on an external temperature control unit is reduced through an intelligent temperature control system, and the temperature control efficiency is improved. According to the invention, the economic burden of system upgrading is reduced, the collecting assembly in the system effectively recovers the overflowed or dripped slurry in the treatment process, through the design of the collecting block, the collecting plate, the conveying frame and the collecting pipeline, the consistency of yarn quality and the production efficiency are ensured, high design and manufacturing cost is not needed, and the economic burden is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sizing devices, and more specifically to a sizing device for cotton yarn. Background Art

[0002] In the textile industry, cotton yarn is usually sizing during production to increase the yarn's tensile strength and reduce breakage. This process involves dipping the cotton yarn into a specific sizing agent, followed by drying and curing to form a protective layer, which is a key step in improving yarn quality and processability.

[0003] In the modern textile industry, sizing is a key process that aims to improve the tension resistance of yarn and reduce fiber breakage by applying sizing. However, a major problem often faced by traditional sizing equipment is the dripping of sizing before solidification, which not only leads to material waste, but also affects the quality of yarn and production continuity. Existing equipment integrates heating elements directly into the squeeze roller. The design of the squeeze roller with integrated heating elements requires major modifications to the existing sizing equipment. First, the squeeze roller needs to be redesigned to have a built-in heating and temperature control system, which may involve changing the material, size and mechanical structure of the squeeze roller to accommodate the installation of the heating element and the management of thermal effects.

[0004] In addition, in order to accurately control the temperature, it is necessary to introduce advanced temperature control systems, which must be compatible with the control system of existing equipment or require additional control units. These modifications not only require high design and manufacturing costs, but may also involve installation and commissioning costs, including the fact that the extrusion rollers with built-in heating elements may require more frequent maintenance and inspection than traditional extrusion rollers, resulting in high initial investment, ongoing maintenance costs and reliance on professional technicians, which constitute a significant economic burden.

[0005] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a sizing device for cotton yarn. Summary of the invention

[0006] The object of the present invention is to provide a sizing device for cotton yarn to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows: A sizing device for cotton yarn, comprising: a sizing tank, a pretreatment component, a curing and collecting component and a drying box, wherein sizing tank is provided with sizing material, and a pair of mutually symmetrical first electric transmission rollers are installed on the inner wall of the sizing tank, and a plurality of yarns are arranged outside the pair of first electric transmission rollers; the pretreatment box is provided, a support plate is fixedly connected to the bottom end of the pretreatment box, one end of the support plate is fixedly connected to the outer end of the sizing tank, a pair of mutually symmetrical squeezing rollers are installed on the inner wall of the support plate, a plurality of uniformly distributed squeezing rollers are installed on the outer surface of the pair of squeezing rollers, a pair of the squeezing rollers are arranged on both sides of the yarn, and a plurality of uniformly distributed curing and collecting components are installed on the inner wall of the pretreatment box; the curing and collecting component comprises a pair of collecting components and a pair of curing components, the collecting component is used to collect the sizing material, and the curing component is used to achieve preliminary curing of the yarn; one end of the drying box is fixedly connected to the support plate, a drying fan is installed in the drying box, and a plurality of the yarns pass through the drying box and extend to the outside of the drying box.

[0008] As a further improvement of the present invention, a pair of mutually symmetrical support columns are fixedly connected to the top of the sizing trough, a pair of mutually symmetrical second electric transmission rollers are installed in the middle of the pair of support columns, a pair of second electric transmission rollers are arranged on the upper and lower sides of the yarn, and a pair of second electric transmission rollers are arranged on the upper side of the sizing trough.

[0009] As a further improvement of the present invention, the curing component includes a curing frame, one end of the curing frame is fixedly connected to the inner wall of the pretreatment box, the inner wall of the curing frame is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a gear, and the inner wall of the curing frame is slidably connected to a first abutment bar and a second abutment bar, and the first abutment bar and the second abutment bar are staggered.

[0010] As a further improvement of the present invention, notches are provided on the first abutment bar and the second abutment bar, and racks are fixedly connected to one end of the first abutment bar and the second abutment bar near the inner wall of the curing frame, and the pair of racks are meshed with gears.

[0011] As a further improvement of the present invention, the material of the first abutting strip is set to be a ceramic material, and the material of the second abutting strip is set to be a polyimide material.

[0012] As a further improvement of the present invention, an electric push rod is fixedly connected to the inner wall of the curing frame, a U-shaped rod is fixedly connected to the output end of the electric push rod, and friction strips are fixedly connected to both ends of the U-shaped rod.

[0013] As a further improvement of the present invention, the collecting assembly includes a collecting block, the outer end of the collecting block is fixedly connected to the inner wall of the pretreatment box, and a collecting groove is opened on the collecting block, the inner wall of the collecting groove is fixedly connected to a collecting plate, and the collecting plate is arranged directly below the first abutment bar and the second abutment bar.

[0014] As a further improvement of the present invention, a pair of the collecting blocks are fixedly connected to one end thereof close to a pair of symmetrical and interconnected transmission frames, and the bottom ends of the multiple collecting blocks on the bottom side are fixedly connected to collecting pipes connected thereto.

[0015] As a further improvement of the present invention, a plurality of feedback loops evenly distributed and matching the yarns are fixedly connected to the inner wall of the pretreatment box via a connecting rod, and a temperature sensor is installed in the feedback loop.

[0016] As a further improvement of the present invention, the temperature sensor is electrically connected to the electric push rod and the servo motor.

[0017] Compared with the prior art, the advantages of the present invention are: In this solution, after the sizing tank is uniformly coated with slurry using the first electric transmission roller, the yarn passes through the squeezing roller and the squeezing roller in the pretreatment box, effectively removing excess slurry and ensuring uniform slurry distribution, thereby improving the utilization efficiency of the slurry. The curing and collecting component adopts the first abutment strip and the second abutment strip in the curing frame controlled by the servo motor. The two abutment strips automatically adjust the contact according to the temperature data of the yarn to ensure that the yarn is initially cured at an appropriate temperature. The intelligent temperature control system reduces the dependence on the external temperature control unit and reduces the economic burden of system upgrades. The collection component in the system effectively recovers the slurry that overflows or drips during the processing process. Through the design of the collection block, the collection plate, the transmission frame and the collection pipe, not only the waste of slurry is minimized, but also the cleanliness of the production environment is maintained, and the overall efficiency and economy of the production line are improved. The design of the entire equipment supports a continuous automated process from sizing, pretreatment, curing to drying. Through precise temperature control and automated material handling, it ensures that each batch of cotton yarn is processed under optimal conditions, thereby ensuring the consistency of yarn quality and production efficiency. It does not require high design and manufacturing costs, reducing the economic burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the pretreatment component of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the solidification collection component of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the collecting component and the curing component of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the collecting component of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the curing assembly of the present invention; Figure 7It is a schematic diagram of the three-dimensional structure of the curing frame of the present invention.

[0019] Description of the numbers in the figure: 1. Sizing tank; 2. Pretreatment component; 3. Curing collection component; 4. Collection component; 5. Curing component; 6. Drying box; 11. First electric transmission roller; 12. Yarn; 13. Support column; 14. Second electric transmission roller; 21. Pretreatment box; 22. Support plate; 23. Squeeze roller; 24. Squeeze roller; 41. Collection block; 42. Transfer frame; 43. Collection pipe; 44. Collection plate; 45. Feedback loop; 51. Curing frame; 52. First abutment strip; 53. Second abutment strip; 54. Friction strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0021] Embodiment 1:

[0022] See also Figure 1-7 A sizing device for cotton yarn comprises: a sizing tank 1, a pretreatment component 2, a solidification collection component 3 and a drying box 6, wherein the sizing tank 1 is provided with sizing material, and a pair of mutually symmetrical first electric transmission rollers 11 are installed on the inner wall of the sizing tank 1, and a plurality of yarns 12 are arranged outside the pair of first electric transmission rollers 11; a pretreatment box 21 is included, and a support plate 22 is fixedly connected to the bottom end of the pretreatment box 21, and one end of the support plate 22 is fixedly connected to the outer end of the sizing tank 1, and a pair of mutually symmetrical squeezing rollers 23 are installed on the inner wall of the support plate 22, and the pair of squeezing rollers 23 are arranged outside A plurality of evenly distributed squeezing rollers 24 are installed on the surface, a pair of squeezing rollers 24 are arranged on both sides of the yarn 12, and a plurality of evenly distributed curing and collecting components 3 are installed on the inner wall of the pretreatment box 21; the curing and collecting components 3 include a pair of collecting components 4 and a pair of curing components 5, the collecting components 4 are used to collect the slurry, and the curing components 5 are used to achieve preliminary curing of the yarn 12; one end of the drying box 6 is fixedly connected to the support plate 22, a drying fan is installed in the drying box 6, and a plurality of yarns 12 pass through the drying box 6 and extend to the outside of the drying box 6.

[0023] Among them, this solution uses the first electric transmission roller 11 in the sizing tank 1 to evenly coat the slurry, and then the yarn 12 passes through the squeezing roller 23 and the squeezing roller 24 in the pretreatment box 21, effectively removing excess slurry and ensuring uniform distribution of the slurry, thereby improving the utilization efficiency of the slurry. The curing collection component 3 uses the first abutment strip 52 and the second abutment strip 53 in the curing frame 51 controlled by the servo motor. The two abutment strips automatically adjust the contact according to the temperature data of the yarn 12 to ensure that the yarn 12 is initially cured at an appropriate temperature. The intelligent temperature control system reduces the dependence on the external temperature control unit and reduces the economic burden of system upgrades. The collecting component 4 in the system effectively recovers the slurry that overflows or drips during the processing process. The design of the collecting block 41, the collecting plate 44, the transmission frame 42 and the collecting pipe 43 not only minimizes the waste of slurry, but also keeps the production environment clean, and improves the overall efficiency and economy of the production line. The design of the entire equipment supports a continuous automated process from slurry coating, pretreatment, curing to drying. Through precise temperature control and automated material handling, it ensures that each batch of cotton yarn is processed under optimal conditions, thereby ensuring the consistency of yarn quality and production efficiency. It does not require high design and manufacturing costs, and reduces the economic burden.

[0024] A pair of symmetrical support columns 13 are fixedly connected to the top of the sizing tank 1, and a pair of symmetrical second electric transmission rollers 14 are installed in the middle of the pair of support columns 13. The pair of second electric transmission rollers 14 are arranged on the upper and lower sides of the yarn 12, and a pair of second electric transmission rollers 14 are arranged on the upper side of the sizing tank 1.

[0025] Among them, the top of the sizing tank 1 is fixedly connected by a pair of mutually symmetrical support columns 13, and a pair of second electric transmission rollers 14 are installed on the support columns. The pair of second electric transmission rollers 14 are located on the upper and lower sides of the yarn 12 and are arranged above the sizing tank 1. Such a configuration allows the second electric transmission rollers 14 to effectively clamp and guide the yarn when the yarn 12 passes through the sizing tank 1, ensuring the stability of the tension and position of the yarn during the sizing process, which helps to improve the sizing uniformity and quality of the yarn, reduce the deviation and entanglement of the yarn during the processing process, thereby enhancing the production efficiency and the quality of the yarn product.

[0026] The curing assembly 5 includes a curing frame 51, one end of which is fixedly connected to the inner wall of the pretreatment box 21, a servo motor is fixedly connected to the inner wall of the curing frame 51, a gear is fixedly connected to the output end of the servo motor, and a first abutment bar 52 and a second abutment bar 53 are slidably connected to the inner wall of the curing frame 51, and the first abutment bar 52 and the second abutment bar 53 are staggered.

[0027] The first abutting bar 52 and the second abutting bar 53 are both provided with notches, and the first abutting bar 52 and the second abutting bar 53 are both fixedly connected with racks at one end close to the inner wall of the curing frame 51, and a pair of racks are both meshed with the gears. The material of the first abutting bar 52 is set to ceramic material, and the material of the second abutting bar 53 is set to polyimide material.

[0028] Among them, the curing component 5 is used to realize the curing treatment of the material in the production line. The curing component 5 includes a curing frame 51, one end of which is fixedly connected to the inner wall of the pretreatment box 21, ensuring the stability and structural consistency of the overall device. A servo motor is installed on the inner wall of the curing frame 51, and the output end of the servo motor is connected to a gear. These gears are engaged with the racks on the first abutment bar 52 and the second abutment bar 53 that are slidably connected on the inner wall of the curing frame 51. The first abutment bar 52 and the second abutment bar 53 are staggered, allowing them to move independently at different times or conditions, thereby adapting to different operating requirements.

[0029] Before the curing process, a pair of squeezing rollers 24 act on the cotton yarn to remove excess slurry from the cotton yarn, ensuring that the cotton yarn does not contain excessive impurities before contacting the abutment strip, thereby improving the curing effect and the quality of the material.

[0030] The first abutting strip 52 and the second abutting strip 53 are both designed with notches, which can be used to collect excess slurry when the abutting strip abuts against the extrusion roller 24. The opened notches enable the collected slurry to be collected by the collecting plate 44. The first abutting strip 52 is made of ceramic material to cope with high temperature environment and provide preliminary curing effect; the second abutting strip 53 is made of polyimide material, which has excellent high temperature resistance and chemical stability, and is suitable for situations when the first abutting strip 52 is not suitable due to high temperature.

[0031] The specific method is that temperature sensors are installed in the feedback loop 45. The main function of these sensors is to monitor the temperature of the cotton yarn during the processing process. According to the temperature data, the system can automatically determine whether the cotton yarn has reached the temperature conditions suitable for curing.

[0032] Because the first abutment strip 52 and the second abutment strip 53 have different material properties and are suitable for different processing temperatures respectively, the continuous contact between the extrusion roller 24 and the first abutment strip 52 may cause the temperature of the extrusion roller to rise above the set safety threshold. If this temperature rise is not controlled, it may cause thermal damage to the cotton yarn and affect product quality.

[0033] When the temperature of the extrusion roller 24 exceeds the safety threshold, the system will automatically switch to the second abutment strip 53, which is made of polyimide material and has higher temperature resistance and chemical stability. The second abutment strip 53 made of polyimide can not only withstand higher temperatures, but also prevent cotton yarn quality problems caused by high temperatures.

[0034] The first abutment strip 52 made of ceramic material is used at normal operating temperature and is suitable for preliminary curing treatment due to its high thermal conductivity and curing effect, while the second abutment strip 53 made of polyimide is used when the temperature of the extrusion roller is too high to prevent overheating from damaging the cotton yarn.

[0035] By switching to high-temperature resistant materials in time, the system effectively prevents possible damage to the cotton yarn due to overheating of the extrusion roller. The system monitors the temperature of the extrusion roller and automatically adjusts the abutment strip when the threshold is reached, thereby ensuring the safety and efficiency of the entire process and ensuring that each batch of cotton yarn is processed under optimal conditions, thereby maintaining consistent product quality and performance. At the same time, the cotton yarn can be preliminarily cured, making it more convenient for the drying box 6 to thoroughly cure it later. The drying box 6 belongs to the prior art and will not be described in detail here.

[0036] An electric push rod is fixedly connected to the inner wall of the curing frame 51, a U-shaped rod is fixedly connected to the output end of the electric push rod, friction strips 54 are fixedly connected to both ends of the U-shaped rod, and a plurality of feedback loops 45 evenly distributed and matching the yarn 12 are fixedly connected to the inner wall of the pretreatment box 21 through a connecting rod, a temperature sensor is installed in the feedback loop 45, and the temperature sensor is electrically connected to the electric push rod and the servo motor.

[0037] Among them, an electric push rod is installed on the inner wall of the curing frame 51, so that the electric push rod can accurately control the U-shaped rod connected to its output end, and friction strips 54 are fixedly connected to both ends of the U-shaped rod. The friction strips 54 are directly in contact with the extrusion roller 24 during the cotton yarn processing process to adjust its temperature. In addition, the feedback loop 45 matches the yarn 12 and has a built-in temperature sensor. The sensor is electrically connected to the electric push rod and the servo motor, thereby realizing real-time monitoring of the cotton yarn temperature and adjustment of multiple devices.

[0038] When the temperature of the extrusion roller 24 is not high enough to effectively solidify the yarn, the temperature sensor in the feedback loop 45 detects the low temperature state and sends a signal to the control system, which then activates the electric push rod to push the U-shaped rod, thereby causing the friction strip 54 to contact the extrusion roller 24, increasing the heat generated by friction, thereby raising the temperature of the extrusion roller 24 to the desired level, ensuring that the yarn can be effectively solidified.

[0039] Through the built-in temperature sensor and automatic control system, the equipment can automatically adjust the temperature of key components to adapt to different operating conditions and ensure the effect of yarn processing. The automatic adjustment system reduces the need for manual intervention, improves production efficiency and yarn quality consistency, and can use energy more efficiently and reduce unnecessary energy consumption by precisely controlling the time and range of heating.

[0040] The collecting assembly 4 includes a collecting block 41, the outer end of which is fixedly connected to the inner wall of the pretreatment box 21, and a collecting groove is opened on the collecting block 41, and a collecting plate 44 is fixedly connected to the inner wall of the collecting groove. The collecting plate 44 is arranged directly below the first abutment bar 52 and the second abutment bar 53.

[0041] A pair of collecting blocks 41 are fixedly connected to one end thereof which is close to each other, and a pair of symmetrical and interconnected transmission frames 42 are fixedly connected to the bottom ends of the multiple bottom collecting blocks 41, and the bottom ends thereof are fixedly connected to collecting pipes 43 which are interconnected therewith.

[0042] Among them, the collecting block 41 is fixedly connected to the inner wall of the pretreatment box 21. The design of the collecting block 41 enables it to be firmly installed in an appropriate position to collect the slurry. The collecting trough is arranged on the collecting block 41 and has an open structure for receiving and guiding the slurry. The inner wall of the collecting trough is connected with a collecting plate 44, which is located directly below the first abutment bar 52 and the second abutment bar 53 to optimize the collection efficiency. The collecting plate 44 is in the collecting trough and directly below the treatment area for effectively capturing and guiding the slurry. The transmission frame 42 is located at the end close to a pair of collecting blocks 41 and is connected by the transmission frame. These frames are designed to be symmetrical and connected so that the collected material can be smoothly transferred from one collecting block to another. Multiple collecting pipes 43 extend from the bottom end of the collecting block 41 for transporting the collected slurry to a set processing or storage position.

[0043] The setting of the collection plate 44 ensures that the slurry from the processing area can be effectively collected, reducing material waste. The compact design of the collection block 41 and the transmission frame 42 allows the overall component to occupy a small space, which is convenient for integration in various industrial environments. The connection design between the transmission frame 42 and the collection pipe 43 ensures that the slurry can be smoothly moved from the collection point to the processing or storage area, thereby improving the automation level and operating efficiency of the production line.

[0044] Working principle: The yarn 12 enters the sizing tank 1, where the first motorized transmission roller 11 ensures that the yarn is evenly coated with sizing, avoiding uneven distribution of sizing. After exiting the sizing tank 1, the yarn enters the pre-treatment box 21, where it is treated by a pair of squeezing rollers 23 and paired squeezing rollers 24, which are located on both sides of the yarn and effectively remove excess sizing from the yarn, thereby optimizing the distribution of sizing and reducing dripping; Next, the yarn is fed into the curing collection assembly 3, wherein a servo motor is installed inside the curing frame 51 to control the first abutting strip 52 and the second abutting strip 53. These abutting strips automatically determine which one abuts against the squeezing roller 24 according to the feedback data of the yarn temperature, so that the yarn 12 is initially cured at an ideal temperature. At the same time, the abutting strips collect the excess slurry on the squeezing roller 24 to ensure its squeezing efficiency, which not only improves the curing efficiency, but also ensures the uniformity of curing. In addition, the excess slurry that may be generated during the solidification process is recovered through the collection component 4, which includes a collection block 41 and a collection plate 44, as well as a transmission frame 42 and a collection pipe 43. The design of this system can not only minimize the waste of slurry, but also keep the production environment clean and tidy. The collected slurry can be recycled or properly treated, further improving resource utilization; Finally, the yarn that has undergone preliminary curing enters the drying box 6, where the drying fan completes the final drying process of the yarn. The design of the drying box ensures that the temperature of the yarn is uniform during the drying process, avoiding overheating or undrying, thereby ensuring the quality of the yarn and the reliability of subsequent processing.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A sizing device for cotton yarn, characterized in that: include: A sizing tank (1), wherein sizing material is arranged in the sizing tank (1), and a pair of mutually symmetrical first electric transmission rollers (11) are installed on the inner wall of the sizing tank (1), and a plurality of yarns (12) are arranged outside the pair of first electric transmission rollers (11); A pretreatment component (2), comprising a pretreatment box (21), a support plate (22) fixedly connected to the bottom end of the pretreatment box (21), one end of the support plate (22) fixedly connected to the outer end of the sizing tank (1), a pair of mutually symmetrical squeezing rollers (23) installed on the inner wall of the support plate (22), a plurality of evenly distributed squeezing rollers (24) installed on the outer surface of the pair of squeezing rollers (23), a pair of squeezing rollers (24) arranged on both sides of the yarn (12), and a plurality of evenly distributed solidification collection components (3) installed on the inner wall of the pretreatment box (21); A solidification collection assembly (3), the solidification collection assembly (3) comprising a pair of collection assemblies (4) and a pair of solidification assemblies (5), the collection assemblies (4) being used to collect the slurry, and the solidification assemblies (5) being used to perform preliminary solidification on the yarn (12); A drying box (6), one end of the drying box (6) is fixedly connected to the support plate (22), a drying fan is installed in the drying box (6), and a plurality of the yarns (12) pass through the drying box (6) and extend to the outside of the drying box (6).

2. A sizing device for cotton yarn according to claim 1, characterized in that: A pair of mutually symmetrical support columns (13) are fixedly connected to the top of the sizing trough (1), a pair of mutually symmetrical second electric transmission rollers (14) are installed in the middle of the pair of support columns (13), the pair of second electric transmission rollers (14) are arranged on the upper and lower sides of the yarn (12), and the pair of second electric transmission rollers (14) are arranged on the upper side of the sizing trough (1).

3. A sizing device for cotton yarn according to claim 1, characterized in that: The curing assembly (5) comprises a curing frame (51), one end of the curing frame (51) is fixedly connected to the inner wall of the pretreatment box (21), the inner wall of the curing frame (51) is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a gear, and the inner wall of the curing frame (51) is slidably connected to a first abutment bar (52) and a second abutment bar (53), and the first abutment bar (52) and the second abutment bar (53) are staggered.

4. A sizing device for cotton yarn according to claim 3, characterized in that: The first abutment bar (52) and the second abutment bar (53) are both provided with notches, and one end of the first abutment bar (52) and the second abutment bar (53) close to the inner wall of the curing frame (51) is fixedly connected with a rack, and the pair of racks are both meshed with the gear.

5. A sizing device for cotton yarn according to claim 3, characterized in that: The material of the first abutting strip (52) is set to be a ceramic material, and the material of the second abutting strip (53) is set to be a polyimide material.

6. A sizing device for cotton yarn according to claim 3, characterized in that: An electric push rod is fixedly connected to the inner wall of the curing frame (51), a U-shaped rod is fixedly connected to the output end of the electric push rod, and friction strips (54) are fixedly connected to both ends of the U-shaped rod.

7. A sizing device for cotton yarn according to claim 1, characterized in that: The collecting assembly (4) comprises a collecting block (41), the outer end of the collecting block (41) is fixedly connected to the inner wall of the pretreatment box (21), and a collecting groove is provided on the collecting block (41), the inner wall of the collecting groove is fixedly connected to a collecting plate (44), and the collecting plate (44) is arranged directly below the first abutting strip (52) and the second abutting strip (53).

8. A sizing device for cotton yarn according to claim 7, characterized in that: A pair of the collecting blocks (41) are fixedly connected to one end thereof which is close to each other, and a pair of symmetrical and interconnected transmission frames (42) are fixedly connected to the bottom ends of the multiple bottom collecting blocks (41) and are interconnected with collecting pipes (43).

9. A sizing device for cotton yarn according to claim 1, characterized in that: The inner wall of the pretreatment box (21) is fixedly connected to a plurality of feedback loops (45) which are evenly distributed and matched with the yarn (12) via a connecting rod, and a temperature sensor is installed in the feedback loop (45).

10. A sizing device for cotton yarn according to claim 9, characterized in that: The temperature sensor is electrically connected to the electric push rod and the servo motor.

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