A device for dyeing loose fibres

By employing alternating winding and negative pressure adsorption in the loose fiber dyeing device, the problem of low production efficiency in the loose fiber dyeing process has been solved, and efficient continuous production has been achieved.

CN118811563BActive Publication Date: 2026-11-06XINCHANG COUNTY YILI MASCH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411148200.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2026-11-06
Estimated Expiration
2044-08-21

AI Technical Summary

Technical Problem

In the current continuous dyeing process of loose fibers, it is difficult to balance dyeing uniformity and production efficiency. The winding and unwinding processes are time-consuming and affect production efficiency.

Method used

The system employs an airflow web forming machine, a dyeing mechanism, a rolling mechanism, and a winding device. It uses two winding drums alternately to wind up loose fibers, utilizes an air extraction pipe and a trigger block system to achieve negative pressure adsorption, and combines a cutting mechanism to improve production efficiency.

Benefits of technology

It enables continuous production of loose fiber dyeing, reduces the waiting time for changing winding drums, and improves overall production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118811563B_ABST
    Figure CN118811563B_ABST
Patent Text Reader

Abstract

The application discloses a kind of loose fiber dyeing devices, including air-laid machine, dyeing mechanism, calender mechanism, winding device, winding device includes mounting plate, and mounting plate is provided with winding mechanism, winding mechanism includes two rotation settings in mounting plate on drive shaft, drive shaft is connected with center tube, center tube is equipped with winding drum, center tube is internally provided with cavity, drive shaft is provided with suction pipe, one end of suction pipe extends into cavity, the other end of suction pipe is connected with air pump, and center tube outer periphery is provided with several rows of air inlet hole, and blind hole is set in the position corresponding to air inlet hole on winding drum.The application can alternately be wound to loose fiber, so as to improve the efficiency of winding.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of loose fiber processing technology, and more specifically, to a loose fiber dyeing apparatus. Background Technology

[0002] Continuous dyeing of loose fibers must ensure uniform dyeing during continuous production while also preventing any impact on the fiber's performance. Rolling and unwinding are both time-consuming processes, which extends the overall processing time and limits the daily fiber throughput. This contradicts the goal of high-efficiency continuous production and makes the process impractical. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a loose fiber dyeing device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention discloses a loose fiber dyeing apparatus, comprising an air-flow web forming machine, a dyeing mechanism, a rolling mechanism, and a winding device. The winding device includes a mounting plate, on which a winding mechanism is mounted. The winding mechanism includes two drive shafts rotatably mounted on the mounting plate. A central cylinder is connected to the drive shafts, and a winding drum is fitted over the central cylinder. A cavity is formed inside the central cylinder. An air extraction pipe passes through the drive shafts, with one end of the pipe extending into the cavity and the other end connected to an air pump. Several rows of air inlets are formed on the outer circumference of the central cylinder. Blind holes are formed on the winding drum at positions corresponding to the air inlets, communicating with the outer circumference of the winding drum. A through hole is also formed on the winding drum. One end of the hole is connected to a blind hole, and the other end of the through hole is connected to the inside of the take-up drum. A trigger block is provided in the blind hole, and a moving block is connected to the inside of the trigger block. At least a part of the moving block is located in the through hole. An air suction hole is provided on the trigger block, and the air suction hole is connected to the outer side of the trigger block. An air suction chamber is provided in the trigger block and the moving block, and the air suction chamber is connected to the air suction hole. A connecting hole is provided in the moving block at the side of the air suction chamber. An installation groove is provided on the take-up drum at the side of the blind hole. A sliding block is connected to the side of the trigger block, and a spring is connected to the sliding block. The other end of the spring is connected to the side of the installation groove. The device also includes a cutting mechanism mounted on the mounting plate.

[0006] Furthermore, several air inlets in each row are evenly distributed along the axial direction of the central cylinder.

[0007] Furthermore, a sealing ring is installed at the end of the drive shaft away from the central cylinder, and a sealing plate is installed on the outer periphery of the exhaust pipe. The side of the sealing plate close to the drive shaft fits against the side of the sealing ring away from the drive shaft.

[0008] Furthermore, a guide groove is provided on the outer periphery of the central cylinder, and a guide strip that cooperates with the guide groove is provided on the inner side of the take-up drum.

[0009] Furthermore, a baffle is provided at the connection between the drive shaft and the central cylinder.

[0010] Furthermore, a guide mechanism is installed on the mounting plate. The guide mechanism includes a movable seat, with limit plates connected to both ends of the movable seat. A guide rod is connected between the two limit plates. A mounting seat is slidably mounted on the movable seat. The guide rod passes through the mounting seat. Two guide wheels are rotatably mounted on the mounting seat. A spring is connected between the side of the mounting seat and the opposite limit plate.

[0011] Furthermore, a micro switch is provided on the upper part of the limit plate, and a trigger rod corresponding to the micro switch is provided on the side of the mounting base.

[0012] Furthermore, an opening is provided on the mounting plate, located between the two drive shafts. A lead screw is installed inside the opening, and a lead screw motor is installed on the side of the opening. The lead screw motor drives and connects to the lead screw. A lead screw slider is installed on the lead screw, and a cutting mechanism is installed on the lead screw slider.

[0013] Furthermore, the cutting mechanism includes a second lead screw mounted on a lead screw slider, a second lead screw slider mounted on the second lead screw, a fixed seat mounted on the upper part of the second lead screw slider, a rotating shaft mounted on the fixed seat, a cutter holder rotatably mounted on the rotating shaft, a cutter mounted on the upper part of the cutter holder, driven gears on two sections of the cutter holder, a servo motor mounted on the second lead screw slider, and a drive gear driven by the servo motor, the drive gear meshing with the driven gear.

[0014] The beneficial effects of this invention are: by using two take-up drums to alternately take up loose fibers, the waiting time when changing take-up drums in the middle is eliminated, the taking-up efficiency is improved, and thus the overall production efficiency is improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a loose fiber dyeing device in this embodiment;

[0016] Figure 2 This is a cross-sectional view of the winding mechanism in this embodiment;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the assembly of the center tube and the take-up tube in this embodiment;

[0019] Figure 5 For this Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6 This is a schematic diagram of one structure of the guiding mechanism in this embodiment;

[0021] Figure 7 This is a schematic diagram of one structure of the cutting mechanism in this embodiment;

[0022] Figure 8 This is a schematic diagram of the usage state structure of this embodiment.

[0023] Reference numerals: 1. Mounting plate; 2. Winding mechanism; 3. Guide mechanism; 4. Lead screw slider one; 5. Lead screw motor; 6. Lead screw one; 7. Opening; 8. Baffle; 9. Center cylinder; 10. Cavity; 11. Air inlet; 12. Air extraction pipe; 13. Winding drum; 14. Transmission gear; 15. Drive shaft; 16. Sealing ring; 17. Sealing plate; 18. Guide groove; 19. Guide strip; 20. Blind hole; 21. Through hole; 22. Trigger block; 23. Moving block; 24. 25. Suction port; 26. Suction chamber; 27. Connecting hole; 28. Mounting slot; 29. ​​Sliding block; 30. Spring 1; 31. Moving seat; 32. Limiting plate; 33. Guide rod; 34. Mounting seat; 35. Guide wheel; 36. Spring 2; 37. Micro switch; 38. Trigger rod; 39. Lead screw 2; 40. Lead screw slider 2; 41. Fixed seat; 42. Tool holder; 43. Cutting blade; 44. Rotating shaft; 45. Driven gear; 46. Servo motor; 47. Driving gear. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-8As shown, a loose fiber dyeing apparatus includes an air-flow web forming machine, a dyeing mechanism, a rolling mechanism, and a winding device. The winding device includes a mounting plate 1, on which a winding mechanism 2 and a cutting mechanism are mounted. The winding mechanism 2 includes two drive shafts 15 rotatably mounted on the mounting plate 1. A central cylinder 9 is connected to the drive shafts 15, and a winding drum 13 is sleeved on the central cylinder 9. Loose fibers are wound onto the surface of the winding drum 13. A cavity 10 is formed inside the central cylinder 9. An air extraction pipe 12 passes through the drive shafts 15. One end of the air extraction pipe 12 extends into the cavity 10, and the other end of the air extraction pipe 12 is connected to an air pump. Several rows of air inlets 11 are evenly distributed on the outer periphery of the central cylinder 9. A blind hole 20 is provided on the take-up drum 13 at the position corresponding to the air inlet 11. The blind hole 20 is connected to the outer periphery of the take-up drum 13. A through hole 21 is also provided on the take-up drum 13. One end of the through hole 21 is connected to the blind hole 20, and the other end of the through hole 21 is connected to the inner side of the take-up drum 13. A trigger block 22 is provided in the blind hole 20. A moving block 23 is connected to the inner side of the trigger block 22. At least a part of the moving block 23 is located in the through hole 21. An air intake hole 24 is provided on the trigger block 22. The air intake hole 24 is connected to the outer side of the trigger block 22. An air intake chamber 25 is formed within the take-up block 22 and the moving block 23, and the air intake chamber 25 is connected to the air intake hole 24. A connecting hole 26 is formed on the side of the air intake chamber 25 within the moving block 23. One end of the connecting hole 26 is connected to the side of the moving block 23, and the other end is connected to the air intake chamber 25. An installation groove 27 is formed on the side of the blind hole 20 on the take-up drum 13. A sliding block 28 is connected to the side of the trigger block 22, and a spring 29 is connected to the sliding block 28. The other end of the spring 29 is connected to the side of the installation groove 27. Under the action of the spring 29, the trigger block 22 tends to move outward, causing a part of the trigger block 22 to protrude from the outer periphery of the take-up drum 13. At the same time, the connecting hole 26 on the moving block 23 is located within the range of the through hole 21. The side of the moving block 23 fits against the side wall of the through hole 21, so that the through hole 21 is closed, disconnecting the connection between the connecting hole 26 and the air intake hole 11. As the amount of loose fibers wound on the left take-up drum 13 gradually increases, the diameter of the resulting loose fiber loop gradually increases. The outer periphery of the loose fiber loop will contact the outer periphery of the right take-up drum 13, thereby pressing against the trigger block 22 and causing it to retract into the blind hole 20. At this time, the connecting hole 26 on the moving block 23 extends into the air inlet hole 11, thus connecting with the air inlet hole 11, which in turn connects the suction hole 24 with the air inlet hole 11. Under the action of the suction pipe 12, a negative pressure is generated at the suction hole 24, which sucks in the loose fibers. The loose fibers are cut off from below by the cutting mechanism, completing the winding of the loose fibers on the left take-up drum 13, and the right take-up drum 13 begins to wind up the loose fibers.

[0026] Simultaneously, because the outer periphery of the loose fiber ring on the left take-up drum 13 abuts against the outer periphery of the right take-up drum 13, when the right take-up drum 13 begins to wind the loose fibers, the loose fiber ring on the left take-up drum 13 can press the loose fibers onto the surface of the right take-up drum 13. This allows all the trigger blocks 22 on the take-up drum 13 to retract into the blind holes 20, causing the suction holes 24 on the corresponding trigger blocks 22 to generate suction to hold the loose fibers, thus holding the innermost ring of the loose fibers. Subsequent loose fibers can then be normally wound onto the innermost ring of loose fibers as the right take-up drum 13 rotates. The first few turns of loose fibers wound on the right take-up drum 13 are pressed tightly by the loose fiber ring on the left take-up drum 13, preventing any loosening. After winding up the first few loops of loose fibers on the right take-up drum 13, remove the left take-up drum 13 to prevent the loose fiber loops on the right take-up drum 13 from growing larger and getting stuck with the loose fiber loops on the left take-up drum 13.

[0027] The drive shaft 15 is mounted on the mounting plate 1 via a drive mechanism. A transmission gear 14 is mounted on the outer periphery of the drive shaft 15. The drive mechanism includes a drive motor, which drives and connects to the drive gear. The drive gear meshes with the transmission gear 14 to achieve transmission.

[0028] Each row of air inlets 11 includes multiple air inlets 11, and several air inlets 11 in each row are evenly distributed along the axial direction of the central cylinder 9.

[0029] A sealing ring 16 is installed at the end of the drive shaft 15 away from the central cylinder 9, and a sealing plate 17 is installed on the outer periphery of the suction pipe 12. The side of the sealing plate 17 closest to the drive shaft 15 is in contact with the side of the sealing ring 16 away from the drive shaft 15. When the drive shaft 15 rotates, the sealing ring 16 and the sealing plate 17 can always maintain a close contact, thereby achieving a seal.

[0030] The outer periphery of the center cylinder 9 is provided with a guide groove 18, and the inner side of the take-up drum 13 is provided with a guide strip 19 that cooperates with the guide groove 18. The positioning between the center cylinder 9 and the take-up drum 13 is achieved through the cooperation of the guide strip 19 and the guide groove 18, so that the trigger block 22 can correspond to the position of the air inlet 11.

[0031] A baffle 8 is provided at the connection between the drive shaft 15 and the center cylinder 9 to limit the installation position of the winding drum 13.

[0032] A guide mechanism 3 is mounted on the mounting plate 1. The guide mechanism 3 includes a movable seat 30, with limit plates 31 connected to both ends of the movable seat 30. A guide rod 32 connects between the two limit plates 31. A mounting seat 33 is slidably mounted on the movable seat 30. The guide rod 32 passes through the mounting seat 33. Two guide wheels 34 are rotatably mounted on the mounting seat 33. Springs 35 connect the sides of the mounting seat 33 to the opposite limit plates 31. Loose fibers pass between the two guide wheels 34. As the diameter of the loose fiber ring increases, the loose fibers will press against the guide wheels 34, causing the mounting seat 33 to move. This movement is limited by the springs 35 on both sides, thus keeping the loose fibers taut.

[0033] A micro switch 36 is provided on the upper part of the limiting plate 31, and a trigger rod 37 corresponding to the micro switch 36 is provided on the side of the mounting base 33. The micro switch 36 is electrically connected to the air pump connected to the suction pipe 12. As the loose fiber ring on the left take-up drum 13 increases in size, the loose fiber will drive the mounting base 33 to gradually move to the right. When the outer periphery of the loose fiber ring on the left take-up drum 13 contacts the outer periphery of the right take-up drum 13, the trigger rod 37 on the right side of the mounting base 33 contacts the corresponding micro switch 36 on the right side, causing the micro switch 36 to send a signal to the air pump. The air pump then starts working, generating suction at the suction port 24. This setting allows the air pump to remain inactive under normal conditions, only starting to work when it is needed to absorb loose fibers. This avoids the situation where the air pump is constantly working, which could cause the suction generated at the air inlet 11 to suck the trigger block 22 into the blind hole 20, thus ensuring the normal operation of the winding device.

[0034] The cutting mechanism includes an opening 7 on the mounting plate 1, located between the two drive shafts 15. A lead screw 6 is installed inside the opening 7, and a lead screw motor 5 is installed on the side of the opening 7. The lead screw motor 5 drives and connects to the lead screw 6. A lead screw slider 4 is installed on the lead screw 6, and a cutting mechanism is mounted on the lead screw slider 4. By driving the lead screw 6 to rotate forward and backward by the lead screw motor 5, the movement of the lead screw slider 4 is controlled, thereby changing the position of the cutting mechanism.

[0035] Furthermore, the cutting mechanism includes a second lead screw 38 mounted on a lead screw slider 4, a second lead screw slider 39 mounted on the second lead screw 38, a fixed base 40 mounted on the upper part of the second lead screw slider 39, a rotating shaft 43 mounted on the fixed base 40, a cutter holder 41 rotatably mounted on the rotating shaft 43, a cutter 42 mounted on the upper part of the cutter holder 41, and two driven gears 44 on the cutter holder 41. A servo motor 45 is mounted on the second lead screw slider 39, and the servo motor 45 drives a driving gear 46, which meshes with the driven gear 44. By driving the driving gear 46 to rotate through the servo motor 45, the driving gear 46 then drives the meshing driven gear 44 to rotate, thereby adjusting the angle of the cutter holder 41 so that the cutter 42 can be perpendicular to the loose fibers, and can properly cut the loose fibers when the cutter 42 moves.

[0036] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A loose fiber dyeing apparatus, characterized in that, The system includes an airflow web forming machine, a dyeing mechanism, a rolling mill mechanism, and a winding device. The winding device includes a mounting plate (1), on which a winding mechanism (2) is mounted. The winding mechanism (2) includes two drive shafts (15) rotatably mounted on the mounting plate (1). A central cylinder (9) is connected to the drive shafts (15). A winding cylinder (13) is fitted over the central cylinder (9). A cavity (10) is provided inside the central cylinder (9). An exhaust pipe (12) passes through the drive shafts (15). One end of the exhaust pipe (12) extends into... Inside the cavity (10), the other end of the suction pipe (12) is connected to an air pump. Several rows of air inlets (11) are provided on the outer periphery of the central cylinder (9). A blind hole (20) is provided on the winding drum (13) at the position corresponding to the air inlet (11). The blind hole (20) is connected to the outer periphery of the winding drum (13). A through hole (21) is also provided on the winding drum (13). One end of the through hole (21) is connected to the blind hole (20), and the other end of the through hole (21) is connected to the inner side of the winding drum (13). A trigger block (22) is provided inside the trigger block (22), and a moving block (23) is connected to the inner side of the trigger block (22). At least a part of the moving block (23) is located in the through hole (21). An air intake hole (24) is provided on the trigger block (22), and the air intake hole (24) communicates with the outer side of the trigger block (22). An air intake chamber (25) is provided inside the trigger block (22) and the moving block (23), and the air intake chamber (25) communicates with the air intake hole (24). A connecting hole is provided inside the moving block (23) at a position on the side of the air intake chamber (25). 26) The winding drum (13) has an installation groove (27) on the side of the blind hole (20). The trigger block (22) is connected to a sliding block (28) on its side. A spring (29) is connected to the sliding block (28). The other end of the spring (29) is connected to the side of the installation groove (27). The winding drum (13) also includes a cutting mechanism installed on the mounting plate (1). When the trigger block (22) is retracted into the blind hole (20), the connecting hole (26) on the moving block (23) extends into the air inlet (11) and communicates with the air inlet (11).

2. The loose fiber dyeing apparatus according to claim 1, characterized in that, Several air inlets (11) in each row are evenly distributed along the axial direction of the central cylinder (9).

3. The loose fiber dyeing apparatus according to claim 1 or 2, characterized in that, A sealing ring (16) is installed at the end of the drive shaft (15) away from the central cylinder (9), and a sealing plate (17) is installed on the outer periphery of the exhaust pipe (12). The side of the sealing plate (17) close to the drive shaft (15) is in contact with the side of the sealing ring (16) away from the drive shaft (15).

4. The loose fiber dyeing apparatus according to claim 1, characterized in that, The outer periphery of the central cylinder (9) is provided with a guide groove (18), and the inner side of the take-up cylinder (13) is provided with a guide strip (19) that cooperates with the guide groove (18).

5. The loose fiber dyeing apparatus according to claim 4, characterized in that, A baffle (8) is provided at the connection between the drive shaft (15) and the central cylinder (9).

6. The loose fiber dyeing apparatus according to claim 1, characterized in that, A guide mechanism (3) is installed on the mounting plate (1). The guide mechanism (3) includes a movable seat (30). Both ends of the movable seat (30) are connected to limit plates (31). A guide rod (32) is connected between the two limit plates (31). A mounting seat (33) is slidably arranged on the movable seat (30). The guide rod (32) passes through the mounting seat (33). Two guide wheels (34) are rotatably arranged on the mounting seat (33). A spring (35) is connected between the side of the mounting seat (33) and the opposite limit plate (31).

7. The loose fiber dyeing apparatus according to claim 6, characterized in that, A micro switch (36) is provided on the upper part of the limiting plate (31), and a trigger rod (37) corresponding to the micro switch (36) is provided on the side of the mounting base (33).

8. The loose fiber dyeing apparatus according to claim 1, characterized in that, An opening (7) is provided on the mounting plate (1). The opening (7) is located between the two drive shafts (15). A lead screw (6) is provided inside the opening (7). A lead screw motor (5) is provided on the side of the opening (7). The lead screw motor (5) drives and connects to the lead screw (6). A lead screw slider (4) is provided on the lead screw (6). A cutting mechanism is installed on the lead screw slider (4).

9. The loose fiber dyeing apparatus according to claim 8, characterized in that, The cutting mechanism includes a second lead screw (38) mounted on a lead screw slider (4), a second lead screw slider (39) mounted on the second lead screw (38), a fixed seat (40) mounted on the upper part of the second lead screw slider (39), a rotating shaft (43) mounted on the fixed seat (40), a blade holder (41) rotatably mounted on the rotating shaft (43), a cutting blade (42) mounted on the upper part of the blade holder (41), a driven gear (44) mounted on the blade holder (41), a servo motor (45) mounted on the second lead screw slider (39), and a driving gear (46) driven by the servo motor (45), which meshes with the driven gear (44).

Citation Information

Patent Citations

  • Stretch film winder

    CN101970321A

  • Device and method for reeling and replacing reel without stop

    CN102795500A