A delivery mechanism for a yarn dyeing spooler

Abstract

The present application belongs to the technical field of yarn-dyeing winding machine, especially to a conveying mechanism for yarn-dyeing winding machine. The following scheme is proposed, which comprises a base, a PLC control system arranged on the base, a base plate, a side plate fixed on one side of the base plate, a back plate, a winding module, a frequency conversion motor for driving the winding module, a cross plate, a tension sensor module and a spinning frame. The bottom of the back plate is connected with an infrared density detector for scanning the density distribution of the inner and outer layers of the original formed cheese. The frequency conversion motor is linked with the PLC control system. The winding module comprises a support plate fixed on the back plate, a support rod, a connecting plate, a hydraulic cylinder, a support block, a movable clamping plate and a fixed clamping plate. The present application can collect yarn tension data in real time, dynamically adjust the winding speed through the linkage of the PLC control system and the frequency conversion motor, control the tension error within 1%, and completely solve the density unevenness caused by tension fluctuation.

Description

Technical Field

[0001] This invention relates to the field of yarn rewinding machines, and more particularly to a conveying mechanism for a yarn dyeing rewinding machine. Background Technology

[0002] As a commonly used yarn winding method in the textile industry, packaged yarn has advantages such as high package density, uniform color fastness after dyeing, and convenient subsequent use. It is widely used in the dyeing and processing of various yarns such as cotton, linen, chemical fibers, and blends.

[0003] A search revealed Chinese patent application CN121292197A, which discloses a silk manufacturing bobbin turning machine, comprising a base; a frame fixedly mounted on top of the base, a bobbin mounting seat fixedly mounted on top of the base, a silk feeding and guiding mechanism at the bottom of the frame, the silk feeding and guiding mechanism including a silk feeding frame fixedly mounted on the frame, a preliminary guide groove on the silk feeding frame, a guide frame fixedly mounted above the silk feeding frame, a guide hole fixedly mounted on the guide frame, a silk tensioning mechanism on the frame, a winding reciprocating transfer mechanism at the top of the frame, and a bobbin turning mechanism at the top of the base. The guide hole and the preliminary guide groove are arranged in a concentric circle structure, and the inner walls of the guide hole and the preliminary guide groove are coated with a polytetrafluoroethylene wear-resistant coating. This can transfer the silk bobbin to the bobbin, avoiding uneven winding and preventing the wound silk from accumulating in one place on the bobbin, thus affecting the bobbin turning effect.

[0004] However, in the actual dyeing process, there are obvious dyeing differences between the inner and outer layers of the yarn package (referred to as "inner and outer layer difference"). This is mainly manifested as color difference and inconsistent color depth between the inner and outer layers. In some cases, the outer layer is darker than the inner layer, or the outer layer is not dyed through the inner layer. This seriously affects the consistency of the finished yarn quality, causes waste of raw materials, increases rework rate, and restricts the production efficiency and product quality of the textile printing and dyeing industry. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A conveying mechanism for a yarn dyeing and winding machine includes a base, a PLC control system mounted on the base, a base plate, a side plate and a back plate fixed to one side of the base, a winding module, a variable frequency motor for driving the winding module, a cross plate, a tension sensor module, and a spinning frame. The back plate has an infrared density detector connected to its bottom for scanning the density distribution of the inner and outer layers of the original formed yarn package. The variable frequency motor is linked to the PLC control system. The winding module includes a support plate, a support rod, a connecting plate, a hydraulic cylinder, a support block, a movable clamping plate, and a fixed clamping plate fixed to the back plate. The hydraulic cylinder is fixed in a slot at the bottom of the connecting plate, and its extended end is connected to the support block. The movable clamping plate is rotatably connected to one side of the support block, and the fixed clamping plate is rotatably connected to one side of the support plate. The output end of the variable frequency motor is fixedly connected to the fixed clamping plate. The tension sensor module consists of a bracket and a tension sensor. The bracket is fixed to the cross plate, and the tension sensor is connected to the bracket. A wire module and an overfeed module are provided on one side of the back plate, with the overfeed module located between the tension sensor module and the spinning frame.

[0007] Preferably, the wire module includes a connector, a lower guide plate, an upper guide plate, and a wire frame fixed on the back plate. The lower guide plate and the upper guide plate are fixed on the connector, and the wire frame is fixed on the top of the connector. The lower guide plate, the upper guide plate, and the top of the wire frame are all provided with guide ports for wire transportation, and the three guide ports are located on the same plane.

[0008] Preferably, the overfeed module includes a fixed base fixed on the back plate, an overfeed wheel, an auxiliary wheel, and a drive motor for driving the overfeed wheel. The overfeed wheel is rotatably connected to one side of the fixed base, the output end of the drive motor is fixedly connected to the overfeed wheel, and the auxiliary wheel is located on one side of the overfeed wheel.

[0009] Preferably, a support plate is connected to the top of the back plate, and a forming module is provided on the support plate.

[0010] Preferably, the forming and shaping module includes a circulating hot air fan, a turntable, a sleeve, and a turntable motor for driving the sleeve to rotate. The turntable is rotatably connected to the support plate, and its top is fixedly connected to the sleeve. The turntable motor is fixed to the bottom of the support plate and fixedly connected to the turntable. The circulating hot air fan is fixed to one side of the support plate.

[0011] Preferably, the sleeve is provided with an anti-detachment module, which includes a top plate, two swing plates, multiple anti-detachment plates and multiple push rods. The top plate is slidably connected to the inside of the sleeve, and two lower openings and multiple upper openings are respectively opened on the outer circumferential wall of the sleeve.

[0012] Preferably, a top plate spring is provided between the bottom of the top plate and the sleeve, and the two swing plates are rotatably connected to the two lower openings through bearings, with one end of the swing plate contacting the bottom of the top plate.

[0013] Preferably, a return spring is provided between the plurality of anti-detachment plates and the plurality of upper openings, and the top plate and the anti-detachment plates are connected by a hinge and a push rod.

[0014] Preferably, the infrared density detector, tension sensor, and variable frequency motor are electrically connected to the PLC control system, and the PLC control system automatically adjusts the winding tension and speed according to the detection data of the infrared density detector.

[0015] A conveying mechanism for a yarn dyeing and unwinding machine, comprising the following steps:

[0016] S1: When rewinding, the original formed bobbin is placed on the spinning frame, and one end of the yarn is passed through the overfeed module, tension sensor and wire module in sequence, and wound on the winding module. At this time, the variable frequency motor is started by the PLC control system, which drives the winding module to rotate, thereby rewinding the yarn.

[0017] S2: The density distribution of the inner and outer layers of the original formed yarn package is scanned by an infrared density detector. Based on the detection data, the winding tension and speed during the unwinding process are automatically adjusted. The winding tension is reduced in high-density areas and the tension is appropriately increased in low-density areas to achieve precise compensation.

[0018] S3: Simultaneously, the tension data of the yarn is collected and processed in real time through the tension sensor. The winding speed is dynamically adjusted through the linkage of the PLC control system and the frequency conversion motor to achieve tension error control within 1%, thus completely solving the problem of uneven density caused by tension fluctuation.

[0019] S4: After the yarn bobbin is unwound, it is placed on the sleeve, and the yarn is subjected to low-temperature setting treatment by a circulating hot air blower. The hot air circulation stabilizes the loose winding structure, avoids density redistribution caused by yarn shrinkage during dyeing, and ensures consistent density before and after dyeing. When setting the unwound yarn, the bottom of the yarn bobbin acts on the swing plate. One end of the swing plate deflects downward under pressure, while the other end of the swing plate drives the top plate to rise. At this time, the top plate moves upward and pushes the push rod to move. The push rod unfolds, and the anti-detachment plate moves towards the inner wall of the yarn bobbin under the action of the push rod, thereby supporting and fixing the anti-detachment plate on the inner wall of the yarn bobbin. This helps to fix the yarn bobbin in place, thereby improving the setting effect of the yarn and preventing the yarn bobbin from not rotating during the rotation process, which would cause uneven heating of the yarn on the yarn bobbin and affect the setting of the yarn.

[0020] S5: After the shaping is complete, simply remove the yarn bobbin from the shaping module.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. This invention, through the installation of a tension sensor, a PLC control system, and a variable frequency motor, can collect yarn tension data in real time. By linking the PLC control system with the variable frequency motor, the winding speed can be dynamically adjusted to control the tension error within 1%, thus completely solving the problem of uneven density caused by tension fluctuations. At the same time, by adding an infrared density detector, the density distribution of the inner and outer layers of the original formed yarn package is scanned. Based on the detection data, the winding tension and speed during the rewinding are automatically adjusted, reducing the winding tension in high-density areas and appropriately increasing the tension in low-density areas to achieve precise compensation.

[0023] 2. The present invention, through the setting of the forming and setting module, performs low-temperature setting treatment on the yarn after the unwinding is completed, and stabilizes the loose winding structure through hot air circulation, avoiding density redistribution caused by yarn shrinkage during dyeing, and ensuring density consistency before and after dyeing;

[0024] 2. This invention, through the inclusion of an anti-detachment module, during the setting process of the unwound yarn, involves placing the unwound yarn bobbin onto a sleeve. At this time, the bottom of the yarn bobbin acts on a swing plate, causing one end of the swing plate to deflect downwards under pressure, while the other end of the swing plate pushes the top plate upwards. Simultaneously, the upward movement of the top plate pushes a push rod, which then unfolds. The anti-detachment plate, under the action of the push rod, moves towards the inner wall of the yarn bobbin, thus fixing the anti-detachment plate to the inner wall of the yarn bobbin. This facilitates the setting process of the yarn bobbin, improving the setting effect and preventing uneven heating of the yarn on the bobbin due to the inability to rotate during the process, which would negatively impact the setting of the yarn. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention;

[0026] Figure 2 This is a front view schematic diagram of a conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention;

[0027] Figure 3 This is a side view of the conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention.

[0028] Figure 4 This is a schematic diagram of the winding module structure of the conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention;

[0029] Figure 5 This is a schematic diagram of the wire module structure of the conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention;

[0030] Figure 6 This is a schematic diagram of the tension sensor structure for a conveying mechanism of a yarn dyeing and unwinding machine proposed in this invention;

[0031] Figure 7 This is a schematic diagram of the stabilizing module structure of a conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention;

[0032] Figure 8 This is a schematic diagram of the forming and shaping module structure of the conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention;

[0033] Figure 9 This is a schematic diagram of the anti-detachment module structure of the conveying mechanism for a yarn dyeing and unwinding machine proposed in this invention.

[0034] In the attached diagram: 1. Base; 2. PLC control system; 3. Side plate; 4. Base; 5. Spinning frame; 6. Back plate; 7. Horizontal plate; 8. Winding module; 9. Support plate; 10. Forming and shaping module; 11. Overfeed module; 12. Tension sensor module; 13. Wire module; 14. Support plate; 15. Support rod; 16. Connecting plate; 17. Hydraulic cylinder; 18. Support block; 19. Moving clamping plate; 20. Fixed clamping plate; 21. Variable frequency motor; 22. Connecting seat; 23. 24. Lower guide plate; 25. Upper guide plate; 26. Wire guide frame; 27. Bracket; 28. Tension sensor; 29. ​​Fixing base; 20. Overfeed wheel; 30. Auxiliary wheel; 31. Circulating hot air blower; 32. Turntable; 33. Turntable motor; 34. Sleeve; 35. Lower port; 36. Upper port; 37. Anti-detachment module; 38. Top plate; 39. Top plate spring; 40. Swing plate; 41. Anti-detachment plate; 42. Return spring; 43. Push rod. Detailed Implementation

[0035] Example 1, referring to Figures 1-7A conveying mechanism for a yarn dyeing and unwinding machine includes a base 1, a PLC control system 2 mounted on the base 1, a base 4, a side plate 3 fixed to one side of the base 4, a back plate 6, a winding module 8, a variable frequency motor 21 for driving the winding module 8, a cross plate 7, a tension sensor module 12, and a spinning frame 5. The PLC control system 2 is fixedly connected to the base 1 by bolts. The spinning frame 5 is fixed to the base 4 by bolts to support the original formed yarn package. The back plate 6 is fixed to one side of the side plate 3 by bolts. An infrared density detector is bolted to the bottom of the back plate 6 to scan the density distribution of the inner and outer layers of the original formed yarn package and to analyze the detection data. The winding tension and speed are automatically adjusted during the rewinding process. The winding tension is reduced in high-density areas and appropriately increased in low-density areas to achieve precise compensation. The winding module 8 is located on one side of the back plate 6, and the variable frequency motor 21 is located on one side of the winding module 8 and is linked with the PLC control system 2 to dynamically adjust the winding speed. This ensures that the tension error is controlled within 1%, completely solving the density unevenness caused by tension fluctuations. The horizontal plate 7 is welded to one side of the back plate 6. The tension sensor module 12 consists of a bracket 26 and a tension sensor 27. The bracket 26 is fixed to the horizontal plate 7 with bolts, and the tension sensor 27 is connected to the bracket 26 with bolts to collect yarn tension data.

[0036] In this invention, the winding module 8 includes a support plate 14, a support rod 15, a connecting plate 16, a hydraulic cylinder 17, a support block 18, a movable clamping plate 19, and a fixed clamping plate 20, all fixed to the back plate 6. The support plate 14 is bolted to the back plate 6. The support rod 15 is welded to one side of the support plate 14. The connecting plate 16 is fixedly sleeved on the support rod 15, and has a slot at its bottom. The hydraulic cylinder 17 is fixed in the slot, and its extended end is bolted to the support block 18. The movable clamping plate 19 is rotatably connected to one side of the support block 18 via a bearing. The fixed clamping plate 20 is... The variable frequency motor 21 is rotatably connected to one side of the support plate 14 via a bearing. It is fixed to the support plate 14 by bolts, and one end of its output is fixedly connected to the fixed clamping plate 20. When rewinding, the bobbin required for rewinding is placed between the moving clamping plate 19 and the fixed clamping plate 20. At this time, the hydraulic cylinder 17 is started, and the hydraulic cylinder 17 will drive the moving clamping plate 19 to move, so that the moving clamping plate 19 and the fixed clamping plate 20 clamp the bobbin. After clamping is completed, the variable frequency motor 21 is started, and the variable frequency motor 21 will drive the bobbin to rotate, thereby realizing the rewinding of the yarn.

[0037] In this invention, a wire module 13 is provided on one side of the back plate 6. The wire module 13 includes a connecting seat 22, a lower guide plate 23, an upper guide plate 24, and a wire frame 25. The connecting seat 22 is fixed on the back plate 6. The lower guide plate 23 and the upper guide plate 24 are both fixed to the connecting seat 22 by bolts. The wire frame 25 is welded to the top of the connecting seat 22. The lower guide plate 23, the upper guide plate 24, and the wire frame 25 are all provided with a guide port for wire transportation on one side of their tops. The three guide ports are located on the same plane.

[0038] In this invention, an overfeed module 11 is provided on one side of the back plate 6. The overfeed module 11 is located between the tension sensor module 12 and the spinning frame 5. The overfeed module 11 includes a fixed base 28, an overfeed wheel 29, an auxiliary wheel 30, and a drive motor for driving the overfeed wheel 29. The fixed base 28 is fixed to the back plate 6 by bolts. The overfeed wheel 29 is rotatably connected to one side of the fixed base 28 by bearings. The drive motor is fixed to one side of the back plate 6, and its output end is fixedly connected to the overfeed wheel 29. The auxiliary wheel 30 is set on one side of the overfeed wheel 29 and pre-loads a certain length of yarn. The purpose is to balance the tension of the yarn in advance, maintain stable tension during the yarn loading process, and ensure uniform yarn density after loading.

[0039] Example 2, refer to Figures 8-9 A conveying mechanism for a yarn dyeing and unwinding machine, compared with Embodiment 1, has a support plate 9 bolted to the top of the back plate 6, and a forming and shaping module 10 is provided on the top of the support plate 9.

[0040] In this invention, the forming and setting module 10 includes a circulating hot air blower 31, a turntable 32, a sleeve 34, and a turntable motor 33 for driving the bobbin to rotate. The turntable 32 is rotatably connected to the support plate 9 via bearings, and its top is welded to the sleeve 34. The turntable motor 33 is fixed to the bottom of the support plate 9 by bolts and is fixedly connected to the turntable 32. The circulating hot air blower 31 is fixed to one side of the support plate 9 by bolts. After the bobbin is turned, the yarn is subjected to low-temperature setting treatment, and the loose winding structure is stabilized by hot air circulation, avoiding density redistribution caused by yarn shrinkage during dyeing and ensuring density consistency before and after dyeing.

[0041] Based on the above, in order to improve the yarn setting effect and prevent the yarn bobbin from failing to rotate during rotation, an anti-detachment module 37 is provided inside the sleeve 34. The anti-detachment module 37 includes a top plate 38, two swing plates 40, multiple anti-detachment plates 41, and multiple push rods 43. The top plate 38 is slidably connected inside the sleeve 34. Two lower openings 35 and multiple upper openings 36 are respectively opened on the outer circumference of the sleeve 34. A top plate spring 39 is provided between the bottom of the top plate 38 and the sleeve 34. The two swing plates 40 are rotatably connected to the two lower openings 35 through bearings. One end of the swing plate 40 contacts the bottom of the top plate 38. A return spring 42 is provided between the multiple anti-detachment plates 41 and the multiple upper openings 36. The top plate 38 and the anti-detachment plates 41 are connected to the push rods 43 through hinges. When setting the yarn after unwinding, the unwinding yarn bobbin is placed on the sleeve 34. At this time, the bottom of the yarn bobbin acts on the swing plate 40. One end of the swing plate 40 will deflect downward under pressure, while the other end of the swing plate 40 will drive the top plate 38 to rise. At this time, the top plate 38 will push the push rod 43 to move as it moves upward. The push rod 43 will then unfold, and the anti-detachment plate 41 will move towards the inner wall of the yarn bobbin under the action of the push rod 43. This will support and fix the anti-detachment plate 41 on the inner wall of the yarn bobbin, so as to fix the setting of the yarn bobbin, thereby improving the setting effect of the yarn and preventing the yarn bobbin from being unable to rotate during the rotation process, which would cause uneven heating of the yarn on the yarn bobbin and thus affect the setting of the yarn.

[0042] A conveying mechanism for a yarn dyeing and unwinding machine, comprising the following steps:

[0043] S1: When rewinding, the original formed bobbin is placed on the spinning frame 5, and one end of the yarn is passed through the overfeed module 11, tension sensor 27 and wire module 13 in sequence, and wound on the winding module 8. At this time, the variable frequency motor 21 is started by the PLC control system 2, thereby driving the winding module 8 to rotate, and thus rewinding the yarn.

[0044] S2: The density distribution of the inner and outer layers of the original formed yarn package is scanned by an infrared density detector. Based on the detection data, the winding tension and speed during the unwinding process are automatically adjusted. The winding tension is reduced in high-density areas and the tension is appropriately increased in low-density areas to achieve precise compensation.

[0045] S3: At the same time, the tension data of the yarn is collected and processed in real time through the tension sensor 27, and the winding speed is dynamically adjusted through the PLC control system 2 and the variable frequency motor 21 to achieve tension error control within 1%, thus completely solving the density unevenness caused by tension fluctuation.

[0046] S4: After unwinding, the unwound yarn bobbin is placed on sleeve 34, and the yarn is subjected to low-temperature setting treatment by circulating hot air blower 31. The hot air circulation stabilizes the loose winding structure, avoids density redistribution caused by yarn shrinkage during dyeing, and ensures density consistency before and after dyeing. When setting the unwound yarn, the bottom of the yarn bobbin acts on the swing plate 40, and one end of the swing plate 40 deflects downward under pressure, while the other end of the swing plate 40... This will cause the top plate 38 to be pushed upward. At this time, as the top plate 38 moves upward, it will push the push rod 43 to move. The push rod 43 will then unfold, and the anti-detachment plate 41 will move towards the inner wall of the yarn bobbin under the action of the push rod 43. This will allow the anti-detachment plate 41 to be supported and fixed on the inner wall of the yarn bobbin, so as to fix the yarn bobbin in a fixed manner, thereby improving the setting effect of the yarn and preventing the yarn bobbin from being unable to rotate during the rotation process, which would cause uneven heating of the yarn on the yarn bobbin and thus affect the setting of the yarn.

[0047] S5: After the shaping is completed, the yarn bobbin can be removed from the shaping module 10.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A conveying mechanism for a yarn dyeing and rewinding machine, comprising a base (1), a PLC control system (2) mounted on the base (1), a base (4), a side plate (3) fixed to one side of the base (4), a back plate (6), a winding module (8), a variable frequency motor (21) for driving the winding module (8), a cross plate (7), a tension sensor module (12), and a spinning frame (5), characterized in that: An infrared density detector is connected to the bottom of the back plate (6) to scan the density distribution of the inner and outer layers of the original formed yarn package. The variable frequency motor (21) is linked with the PLC control system (2). The winding module (8) includes a support plate (14), a support rod (15), a connecting plate (16), a hydraulic cylinder (17), a support block (18), a moving clamping plate (19), and a fixed clamping plate (20) fixed on the back plate (6). The hydraulic cylinder (17) is fixed in the bayonet at the bottom of the connecting plate (16), and its extended end is connected to the support block (18). The moving clamping plate (19) rotates. Connected to one side of the support block (18), the fixed clamp plate (20) is rotatably connected to one side of the support plate (14), and the output end of the variable frequency motor (21) is fixedly connected to the fixed clamp plate (20); the tension sensor module (12) consists of a bracket (26) and a tension sensor (27). The bracket (26) is fixed on the horizontal plate (7), and the tension sensor (27) is connected to the bracket (26). A wire module (13) and an overfeed module (11) are provided on one side of the back plate (6). The overfeed module (11) is located between the tension sensor module (12) and the spinning frame (5).

2. The conveying mechanism for a yarn dyeing and unwinding machine according to claim 1, characterized in that, The conductor module (13) includes a connector (22), a lower guide plate (23), an upper guide plate (24) and a conductor frame (25) fixed on the back plate (6). The lower guide plate (23) and the upper guide plate (24) are fixed on the connector (22), and the conductor frame (25) is fixed on the top of the connector (22). The lower guide plate (23), the upper guide plate (24) and the conductor frame (25) are all provided with a guide opening for conductor transportation on one side of the top. The three guide openings are located on the same plane.

3. The conveying mechanism for a yarn dyeing and unwinding machine according to claim 1, characterized in that, The overfeed module (11) includes a fixed base (28) fixed on the back plate (6), an overfeed wheel (29), an auxiliary wheel (30) and a drive motor for driving the overfeed wheel (29). The overfeed wheel (29) is rotatably connected to one side of the fixed base (28), the output end of the drive motor is fixedly connected to the overfeed wheel (29), and the auxiliary wheel (30) is located on one side of the overfeed wheel (29).

4. The conveying mechanism for a yarn dyeing and unwinding machine according to claim 1, characterized in that, The top of the back plate (6) is connected to a support plate (9), and a molding module (10) is provided on the support plate (9).

5. A conveying mechanism for a yarn dyeing and unwinding machine according to claim 4, characterized in that, The molding and shaping module (10) includes a circulating hot air blower (31), a turntable (32), a sleeve (34), and a turntable motor (33) for driving the cylinder to rotate. The turntable (32) is rotatably connected to the support plate (9), and its top is fixedly connected to the sleeve (34). The turntable motor (33) is fixed to the bottom of the support plate (9) and fixedly connected to the turntable (32). The circulating hot air blower (31) is fixed to one side of the support plate (9).

6. A conveying mechanism for a yarn dyeing and unwinding machine according to claim 5, characterized in that, The sleeve (34) is provided with an anti-detachment module (37). The anti-detachment module (37) includes a top plate (38), two swing plates (40), multiple anti-detachment plates (41) and multiple push rods (43). The top plate (38) is slidably connected to the inside of the sleeve (34). Two lower openings (35) and multiple upper openings (36) are respectively opened on the outer circumference of the sleeve (34).

7. A conveying mechanism for a yarn dyeing and unwinding machine according to claim 6, characterized in that, A top plate spring (39) is provided between the bottom of the top plate (38) and the sleeve (34). The two swing plates (40) are rotatably connected to the two lower openings (35) through bearings. One end of the swing plate (40) is in contact with the bottom of the top plate (38).

8. A conveying mechanism for a yarn dyeing and unwinding machine according to claim 6, characterized in that, A reset spring (42) is provided between the multiple anti-detachment plates (41) and the multiple upper openings (36), and the top plate (38) and the anti-detachment plates (41) are connected by a hinge and a push rod (43).

9. A conveying mechanism for a yarn dyeing and unwinding machine according to claim 1, characterized in that, The infrared density detector, tension sensor (27), and variable frequency motor (21) are electrically connected to the PLC control system (2). The PLC control system (2) automatically adjusts the winding tension and speed according to the detection data of the infrared density detector.

10. A conveying mechanism for a yarn dyeing and unwinding machine, characterized in that, The specific steps of the conveying mechanism for the yarn dyeing and unwinding machine according to any one of 1-9 are as follows: S1: When rewinding, the original formed bobbin is placed on the spinning frame (5), and one end of the yarn is passed through the overfeed module (11), tension sensor (27) and wire module (13) in sequence, and wound on the winding module (8). At this time, the variable frequency motor (21) is started by the PLC control system (2), thereby driving the winding module (8) to rotate through the variable frequency motor (21), and then the yarn is rewinded. S2: The density distribution of the inner and outer layers of the original formed yarn package is scanned by an infrared density detector. Based on the detection data, the winding tension and speed during the unwinding process are automatically adjusted. The winding tension is reduced in high-density areas and the tension is appropriately increased in low-density areas to achieve precise compensation. S3: At the same time, the tension data of the yarn is collected and processed in real time through the tension sensor (27), and the winding speed is dynamically adjusted through the PLC control system (2) and the variable frequency motor (21) to achieve tension error control within 1%, thus completely solving the density unevenness caused by tension fluctuation. S4: After the unwinding is completed, the unwinded yarn bobbin is placed on the sleeve (34), and the yarn is subjected to low-temperature setting treatment by the circulating hot air blower (31). The hot air circulation stabilizes the loose winding structure, avoids density redistribution caused by yarn shrinkage during dyeing, and ensures the consistency of density before and after dyeing. When setting the unwinded yarn, the unwinded yarn bobbin is placed on the sleeve (34). At this time, the bottom of the yarn bobbin will act on the swing plate (40), and one end of the swing plate (40) will deflect downward under the pressure, while the other end of the swing plate (40) will... This will cause the top plate (38) to be pushed upward. At this time, the top plate (38) will push the push rod (43) to move while moving upward. At this time, the push rod (43) will unfold, and the anti-detachment plate (41) will move towards the inner wall of the yarn bobbin under the action of the push rod (43), so that the anti-detachment plate (41) is supported and fixed on the inner wall of the yarn bobbin, so as to fix the shaping of the yarn bobbin, thereby improving the shaping effect of the yarn and preventing the yarn bobbin from being unable to rotate during the rotation process, which would cause uneven heating of the yarn on the yarn bobbin and thus affect the shaping of the yarn. S5: After the shaping is completed, the yarn bobbin can be removed from the shaping module (10).

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