A yarn bundle straightening device for a bundle dyeing machine
By combining a hexagonal vibrating roller and an air jet device, the problems of yarn twisting and uneven dyeing were solved, achieving tension balance and separation of the yarn bundles, and improving the looseness of the yarn bundles and the uniformity of dyeing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LANYAN TEXTILES CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-10
AI Technical Summary
During the dyeing process of the bundle dyeing machine, the yarn is prone to twisting and tangling, and the yarn layers are not arranged neatly, which leads to problems such as local tangling of the yarn and uneven dyeing during unwinding.
The system employs a hexagonal oscillating roller and an air jet device in conjunction with a guide roller. Real-time automatic compensation of yarn tension is achieved through the contact between the yarn bundle and the hexagonal oscillating roller. The convex points separate the yarns, and the shearing force of the air jet device separates the overlapping yarns and the convex and concave layers of yarns inside the yarn bundle.
It significantly reduces the probability of yarn tangling and entanglement, improves the looseness of yarn bundles and dyeing uniformity, and enhances the dyeing effect in subsequent pad dyeing processes.
Smart Images
Figure CN224478252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile machinery technology, and in particular to a yarn bundle straightening device for a yarn dyeing machine. Background Technology
[0002] Bundle dyeing is a common process for dyeing warp yarns in denim fabrics. Multiple warp yarns are bundled together and fed into a bundle dyeing machine. Through repeated immersion in dye liquor and oxidation to fix the color, the warp yarns are dyed evenly. It is one of the mainstream processes for dyeing warp yarns in denim fabrics. However, problems can easily occur during the process due to the unwinding of the ball bobbin.
[0003] During unwinding of the warp beam, the yarn bundles on both ends twist and entangle, resulting in numerous yarn breaks and uneven dyeing after padding, leading to low production efficiency in subsequent warping processes. During warp beam winding, excessive inner layer tension and insufficient outer layer tension cause the outer layer yarns to spiral and curl due to relaxation during unwinding. The sudden release of tension during unwinding of the outer layer yarns causes twisting and entanglement. Uneven yarn layer arrangement during winding results in overlapping or uneven layers; during unwinding, the convex layer yarns are compressed by lateral forces, leading to localized entanglement. Utility Model Content
[0004] The purpose of this utility model is to provide a yarn bundle straightening device for a yarn dyeing machine, which solves the problems in the prior art such as yarn twisting and tangling, uneven yarn layer arrangement, "overlapping yarn" or "convex and concave layers", and local tangling caused by lateral force squeezing of convex layer yarns during unwinding.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A yarn bundle straightening device for a yarn dyeing machine includes a frame, which is symmetrical from left to right. Two supports are fixed to the left and right sides of the frame, and a warp beam is placed on each support. A yarn bundle is wound on the warp beam. Horizontal beams are fixed to the front and rear of the frame, and fixed shafts are fixed to the beams in symmetrical positions. Guide rollers are installed on the fixed shafts. A hexagonal vibrating roller is installed at the top center of the frame through a bearing seat. The central shaft of the hexagonal vibrating roller is connected to the output shaft of a pneumatic motor through a coupling. The pneumatic motor is fixedly installed to the frame through a base and is electrically connected to an electrical box.
[0007] Preferably, the guide roller is an axially fixed roller, which includes a cylindrical roller A. The cylindrical roller A has the same length as the ball bearing shaft and is mounted to the fixed shaft on both sides by bearings.
[0008] Preferably, a plastic sliding sleeve is fixed to the outer side of the cylindrical roller A, and a protrusion A is integrally formed on the plastic sliding sleeve.
[0009] Preferably, the crossbeam is divided into three layers: upper, middle, and lower, and each layer is fixed with a left-right symmetrical fixed shaft. Guide rollers are installed on the fixed shafts of the middle and lower layers, and cylindrical rollers B are installed on the fixed shafts of the upper layer. The cylindrical rollers B have the same length as the ball bearing shaft and are installed on both sides of the fixed shaft through bearings.
[0010] Preferably, the guide rollers in the middle and lower layers are both axially fixed rollers.
[0011] Preferably, the guide rollers in the middle and lower layers are both axially moving rollers. The axially moving roller includes a linear rotary bearing, a rubber sleeve B, and a protrusion B. The linear rotary bearing is mounted on a fixed shaft. The rubber sleeve B is fixedly bonded to the outer circumference of the linear rotary bearing. The cross-sectional profile of the rubber sleeve B is C-shaped. The protrusion B is integrally formed in the middle of the circumference of the rubber sleeve B.
[0012] Preferably, a symmetrical jetting device is installed on the fixed shaft of the middle and lower layer. The jetting device includes a bushing, a linear ball bushing, a connecting rod, a carrier plate, and a nozzle. The linear ball bushing is fixed inside the bushing and is installed on the fixed shaft of the middle and lower layer. Bushings are respectively provided at the front and rear of the linear rotary bearing of the middle and lower layer. The bushings on the same side of the middle and lower layer are fixedly connected to the connecting rod. The carrier plate is fixedly installed outside the front and rear connecting rods. The nozzle facing inward is fixedly installed on the carrier plate.
[0013] Preferably, there are multiple nozzles arranged at an angle.
[0014] Preferably, the nozzle is a flat nozzle that sprays air vertically.
[0015] The advantages of this utility model compared with the prior art are as follows:
[0016] 1) The yarn bundle passes through the hexagonal vibrating roller to achieve real-time automatic compensation of the unwinding tension of the yarn bundle, balance the tension distribution between the yarns, significantly reduce the probability of yarn tangling and entanglement, and effectively improve the dyeing uniformity in the subsequent pad dyeing process.
[0017] 2) The yarn bundle passes through protrusion A or protrusion B, allowing it to penetrate into the yarn bundle, which physically separates the overly clustered yarn, breaks the "clumping" state of the yarn bundle, and eliminates the residual internal stress inside the yarn.
[0018] 3) The jetting device can move synchronously with the axially moving roller. The airflow shearing force generated by the nozzle penetrates into the yarn bundle, separating the overlapping yarns and the convex and concave layers of yarn, thereby improving the looseness of the yarn bundle. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the external structure of Embodiment 1 of this utility model;
[0020] Figure 2This is a schematic diagram of the yarn unwinding route in Embodiment 1 of this utility model;
[0021] Figure 3 This is a schematic diagram of the external structure of the plastic sliding sleeve in Embodiment 2 of this utility model;
[0022] Figure 4 This is a cross-sectional view of the plastic sliding sleeve and protrusion A in Embodiment 2 of this utility model;
[0023] Figure 5 This is a schematic diagram of the external structure of Embodiment 3 of this utility model;
[0024] Figure 6 This is a schematic diagram of the yarn unwinding route in Embodiment 3 of this utility model;
[0025] Figure 7 This is a schematic diagram of the external structure of Embodiment 4 of this utility model;
[0026] Figure 8 This is a schematic diagram of the axially moving roller structure in Embodiment 4 of this utility model;
[0027] Figure 9 This is a schematic diagram of the yarn unwinding route in Embodiment 4 of this utility model;
[0028] Figure 10 This is a schematic diagram of the external structure of Embodiment 5 of this utility model;
[0029] Figure 11 This is a schematic diagram of the external structure of the jet device in Embodiment 5 of this utility model;
[0030] Figure 12 This is a schematic diagram of the yarn unwinding route in Embodiment 5 of this utility model;
[0031] Figure 13 This is a schematic diagram of the lateral distribution of the nozzles of the jet device in Embodiment 5 of this utility model;
[0032] Figure 14 This is a schematic diagram of the jet end structure of the nozzle in Embodiment 5 of this utility model;
[0033] Icons: 1. Frame; 2. Support; 3. Ball warp beam; 31. Yarn bundle; 4. Crossbeam; 5. Fixed shaft; 6. Guide roller; 61. Cylindrical roller A; 62. Plastic sliding sleeve; 63. Protrusion A; 64. Linear rotary bearing; 65. Rubber sleeve B; 66. Protrusion B; 7. Hexagonal vibrating roller; 8. Pneumatic motor; 9. Cylindrical roller B; 10. Air jet device; 101. Bushing; 102. Linear ball bushing; 103. Connecting rod; 104. Carrier plate; 105. Nozzle. Detailed Implementation
[0034] To make the objectives, methods, and advantages of the embodiments of this utility model clearer, the method solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0035] Example 1
[0036] like Figure 1-2 As shown, a yarn bundle straightening device for a yarn dyeing machine includes a frame 1, which is symmetrical from left to right. Two supports 2 are welded and fixed to the left and right sides of the frame 1, respectively. A warp beam 3 is placed on each support 2. Warp beams 3 at the same height on both sides simultaneously unwind yarn bundles 31. After the yarn bundle 31 at the current height of the warp beam 3 is unwound, it is replaced with a warp beam 3 at another height to continue unwinding, achieving continuity in yarn bundle unwinding and shortening the waiting time for warp beam 3 replacement. A yarn bundle 31 composed of hundreds of yarns is wound on the warp beam 3. Horizontal beams 4 are welded and fixed to the front and rear of the frame 1, respectively. Fixed shafts 5, symmetrically positioned on the left and right sides, are bolted to the beams 4. Guide rollers 6 are installed on the fixed shafts 5. The guide rollers 6 are axially fixed rollers, including cylindrical rollers A61. The cylindrical rollers A61 are the same length as the warp beams 3 and are mounted to the fixed shafts 5 on both sides via bearings. A hexagonal oscillating roller 7 is mounted on the top center of the frame 1 via a bearing seat. The hexagonal oscillating roller 7 is a hexagonal prism with a regular hexagonal cross-section. The central shaft of the hexagonal oscillating roller 7 is connected to the output shaft of the pneumatic motor 8 via a coupling. The pneumatic motor 8 is fixedly mounted to the frame 1 via a base and is electrically connected to the electrical box.
[0037] In the specific implementation process, when the yarn bundle 31 is unwound, it first contacts the surface of the cylindrical roller A61, causing the cylindrical roller A61 to rotate around the fixed axis 5, thus guiding the yarn bundle 31 and allowing it to enter the bundle dyeing machine vertically. During this period, the yarn bundle 31 maintains contact with the outer surface of the hexagonal oscillating roller 7. The diameter of the inscribed circle of the hexagonal oscillating roller 7 is matched with the distance between the left and right guide rollers 6 to ensure a stable contact state between the yarn bundle 31 and the hexagonal oscillating roller 7. The pneumatic motor 8 drives the hexagonal oscillating roller 7 to rotate at a uniform speed. Due to the periodic contour change of the regular hexagonal prism, the contact point between the yarn bundle 31 and the hexagonal oscillating roller 7 produces regular left-right fluctuations, forming a stable horizontal mechanical oscillation wave. The oscillating wave penetrates into the yarn bundle, causing adjacent yarns to form tiny gaps during vibration. The outer layer of relaxed yarn gains kinetic energy through vibration, increasing effective tension and preventing yarn sagging and tangling due to insufficient tension. The inner layer of overly tight yarn breaks the static friction lock between yarn layers through vibration, releasing excess tension and reducing the stretching deformation caused by uneven tension. The yarn bundle tangling point is broken by the intermittent change in force direction, achieving yarn self-unwinding and preventing yarn kinking.
[0038] Through the above-mentioned functions, the hexagonal oscillating roller 7 realizes real-time automatic compensation of the unwinding tension of the yarn bundle 31, balances the tension distribution between yarns, significantly reduces the probability of yarn tangling and entanglement, and effectively improves the dyeing uniformity in the subsequent pad dyeing process.
[0039] Example 2
[0040] To loosen the overly concentrated yarns within yarn bundle 31 in advance and further improve the combing effect of yarn bundle 31, improvements are made based on Example 1, such as... Figure 3-4 As shown, in this embodiment, a plastic sleeve 62 is fixed to the outer side of the cylindrical roller A61. The plastic sleeve 62 is made of high wear-resistant polyethylene material with a smooth surface, which reduces the coefficient of friction between the yarn bundle 31 and the guide roller 6, and reduces the fuzz generated by the yarn due to friction. The plastic sleeve 62 has integrally formed protrusions A63. The integrally formed structure of the protrusions A63 improves structural stability and avoids the risk of them falling off during use.
[0041] In the specific implementation process, when the yarn bundle 31 is unwound, the protrusion A63 penetrates into the inside of the yarn bundle, which plays a physical separation role on the overly clustered yarn, breaks the "clumping" state of the yarn bundle, and eliminates the residual internal stress inside the yarn.
[0042] After optimization, the separation effect of the yarn bundle was ensured. Through the synergistic effect of the plastic sliding sleeve 62 and the convex point A63, the initial looseness of the yarn bundle 31 was improved compared with Example 1, laying a good foundation for the subsequent oscillation treatment of the hexagonal oscillating roller 7.
[0043] Example 3
[0044] To ensure that the contact surfaces on both sides of the yarn bundle 31 are loosened by the protrusions A63 when it passes through the plastic sliding sleeve 62, improvements are made based on Example 2, such as... Figure 5-6 As shown, in this embodiment, the crossbeam 4 is divided into three layers: upper, middle, and lower. Each layer is fixed with a left-right symmetrical fixed shaft 5. Guide rollers 6 are installed on the fixed shaft 5 of the middle and lower layers, and cylindrical rollers B9 are installed on the fixed shaft 5 of the upper layer. The cylindrical rollers B9 are the same length as the ball bearing shaft 3 and are installed on both sides of the fixed shaft 5 through bearings.
[0045] The guide rollers 6 in the middle and lower layers are both axially fixed rollers.
[0046] In the specific implementation process, when the yarn bundle 31 is unwound, it passes sequentially through the lower guide roller 6, the middle guide roller 6, the upper cylindrical roller B9, and the hexagonal oscillating roller 7. The protrusions A63 of the lower and middle guide rollers 6 act on the upper and lower surfaces of the yarn bundle 31 respectively, realizing double-sided loosening of the yarn bundle and increasing the number of times the protrusions A63 act on the yarn bundle, which is twice that of Example 2, further breaking the yarn aggregation state; the setting of the three-layer beam causes the yarn bundle 31 to form two turns in the unwinding path, prolonging the contact time between the yarn bundle 31 and the guide roller 6, and improving the thoroughness of the loosening effect; the guiding effect of the upper cylindrical roller B9 causes the yarn bundle 31 to converge towards the center of the frame 1, ensuring that the contact area between the yarn bundle 31 and the hexagonal oscillating roller 7 is uniform and the contact pressure is consistent, avoiding the problem of uneven oscillation effect caused by the deviation of the yarn bundle 31.
[0047] Example 4
[0048] Since the yarn bundle 31 is wound on the warp beam 3, it will move axially along the warp beam 3 during unwinding. When passing through the guide roller 6, the protrusion A63 will laterally obstruct the axial movement of the yarn bundle 31, inevitably causing damage to the internal yarn. In order to reduce the lateral wear of the yarn caused by the protrusion A63, the structure of the middle and lower guide rollers 6 is improved based on embodiment 3, such as... Figure 7-9 As shown, in this embodiment, the guide rollers 6 in the middle and lower layers are both axially moving rollers. Each axially moving roller includes a linear rotary bearing 64, a rubber sleeve B65, and a protrusion B66. The linear rotary bearing 64 is mounted on a fixed shaft 5 and can slide linearly along the fixed shaft 5 and also rotate. This dual-degree-of-freedom design of the linear rotary bearing 64 allows the guide roller 6 to adapt to the axial movement of the yarn bundle 31, avoiding the problem of guide roller 6 jamming due to yarn bundle movement and improving the operational stability of the device. A rubber sleeve B65 is fixedly bonded to the outer circumference of the linear rotary bearing 64. The rubber sleeve B65 has a C-shaped cross-sectional profile. The rubber sleeve B65 increases the friction with the yarn bundle 31, ensuring that the yarn bundle 31 moves synchronously with the rubber sleeve B65 through the special C-shaped structure. A protrusion B66 is integrally formed in the middle of the circumference of the rubber sleeve B65.
[0049] In the specific implementation process, when the yarn bundle 31 unwinds, it contacts the outer surface of the rubber sleeve B65, causing the linear rotary bearing 64 to rotate around the fixed shaft 5. Simultaneously, when the yarn bundle 31 moves axially along the warp shaft 3, the frictional force causes the linear rotary bearing 64 to slide synchronously along the fixed shaft 5, achieving synchronous axial movement between the guide roller 6 and the yarn bundle 31. The protrusion B66 moves axially with the guide roller 6, always aligned with the current position of the yarn bundle 31, eliminating the lateral cutting force of the protrusion on the yarn, and reducing the yarn damage rate compared to Example 3.
[0050] Example 5
[0051] To further separate the overlapping and concave-convex layers of yarn in yarn bundle 31 and reduce yarn entanglement, an air jet device 10 was added based on Example 3, such as... Figure 10-14 As shown, in this embodiment, a symmetrical jet device 10 is installed on the fixed shaft 5 of the middle and lower layers. The jet device 10 includes a bushing 101, a linear ball bushing 102, a connecting rod 103, a carrier plate 104, and a nozzle 105. The linear ball bushing 102 is fixed inside the bushing 101 and is installed on the fixed shaft 5 of the middle and lower layers. Bushings 101 are respectively provided at the front and rear of the linear rotary bearing 64 of the middle and lower layers. The connecting rod 103 is fixedly connected to the bushing 101 on the same side of the middle and lower layers. The carrier plate 104 is fixed outside the connecting rods 103 at the front and rear. The nozzle 105 facing inward is fixedly installed on the carrier plate 104. The nozzle 105 is connected to the compressor through an air pipe and an airflow regulating valve. The airflow regulating valve is controlled by an electrical box.
[0052] The nozzles 105 are multiple and obliquely distributed. They can spray air at various positions laterally on the yarn bundle 31, ensuring full coverage of the yarn bundle 31, making the yarn evenly spread, avoiding the airflow blowing the yarn away, and ensuring that the direction of airflow on the yarn is coordinated with the unwinding direction of the yarn bundle, thus improving the separation effect.
[0053] The nozzle 105 is a flat nozzle that sprays air vertically. The airflow direction is consistent with the yarn direction, which narrows the airflow diffusion angle, enhances the longitudinal shear force of the airflow, and spreads the longitudinal yarn more evenly.
[0054] In the specific implementation process, when the yarn bundle 31 is unwound, the linear rotary bearing 64 slides axially along the fixed shaft 5, pushing the linear ball bushing 102, connecting rod 103, and carrier plate 104 to move synchronously, so that the nozzle 105 is always aligned with the current position of the yarn bundle 31; the compressed air generated by the compressor enters the nozzle 105 through the air pipe, and is sprayed out at an adjustable pressure of 0.1-0.3MPa according to the thickness of the yarn bundle, forming a longitudinal airflow. The shearing force of the airflow penetrates into the interior of the yarn bundle, separating the overlapping yarns and the convex and concave layers of yarn, so that the looseness of the yarn bundle 31 is improved compared with Example 4.
[0055] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A yarn bundle straightening device for a yarn dyeing machine, comprising a frame (1), wherein the frame (1) is symmetrical from left to right, characterized in that, The frame (1) is fixed with two supports (2) on the left and right sides respectively. A ball warp beam (3) is placed on the support (2). A yarn bundle (31) is wound on the ball warp beam (3). A horizontal beam (4) is fixed at the front and back of the frame (1). A fixed shaft (5) with symmetrical left and right positions is fixed on the beam (4). A guide roller (6) is installed on the fixed shaft (5). A hexagonal oscillating roller (7) is installed in the middle of the top of the frame (1) through a bearing seat. The central shaft of the hexagonal oscillating roller (7) is connected to the output shaft of the pneumatic motor (8) through a coupling. The pneumatic motor (8) is fixedly installed on the frame (1) through a base. The pneumatic motor (8) is electrically connected to the electrical box.
2. The yarn bundle straightening device for a yarn dyeing machine according to claim 1, characterized in that, The guide roller (6) is an axially fixed roller, which includes a cylindrical roller A (61). The cylindrical roller A (61) has the same length as the ball bearing shaft (3) and is mounted on both sides to the fixed shaft (5) via bearings.
3. The yarn straightening device for a yarn dyeing machine according to claim 2, characterized in that, A plastic sleeve (62) is fixed on the outer side of the cylindrical roller A (61), and a protrusion A (63) is integrally formed on the plastic sleeve (62).
4. The yarn bundle straightening device for a yarn dyeing machine according to claim 1, characterized in that, The crossbeam (4) is divided into three layers: upper, middle and lower. Each layer is fixed with a left-right symmetrical fixed shaft (5). Guide rollers (6) are installed on the fixed shafts (5) of the middle and lower layers respectively. A cylindrical roller B (9) is installed on the fixed shaft (5) of the upper layer. The cylindrical roller B (9) is the same length as the ball bearing shaft (3) and is installed on both sides of the fixed shaft (5) through bearings.
5. A yarn straightening device for a yarn dyeing machine according to claim 3 or 4, characterized in that, The guide rollers (6) in the middle and lower layers are both axially fixed rollers.
6. The yarn bundle straightening device for a yarn dyeing machine according to claim 4, characterized in that, The guide rollers (6) in the middle and lower layers are also axial moving rollers. The axial moving rollers include a linear rotary bearing (64), a rubber sleeve B (65), and a protrusion B (66). The linear rotary bearing (64) is installed on a fixed shaft (5). The rubber sleeve B (65) is fixedly bonded to the outer circumference of the linear rotary bearing (64). The cross-sectional profile of the rubber sleeve B (65) is C-shaped. The protrusion B (66) is integrally formed in the middle of the circumference of the rubber sleeve B (65).
7. A yarn bundle straightening device for a yarn dyeing machine according to claim 6, characterized in that, The fixed shaft (5) of the middle and lower layer is equipped with a left-right symmetrical jet device (10). The jet device (10) includes a bushing (101), a linear ball bushing (102), a connecting rod (103), a carrier plate (104), and a nozzle (105). The bushing (101) is fixed with a linear ball bushing (102). The linear ball bushing (102) is installed on the fixed shaft (5) of the middle and lower layer. The linear rotary bearing (64) of the middle and lower layer is provided with bushings (101) at the front and back respectively. The bushing (101) of the middle and lower layer on the same side is fixedly connected to a connecting rod (103). The connecting rod (104) is fixedly fixed outside the front and back connecting rods (103). The nozzle (105) facing inward is fixedly installed on the carrier plate (104).
8. A yarn straightening device for a yarn dyeing machine according to claim 7, characterized in that, The nozzles (105) are multiple and are distributed obliquely.
9. A yarn straightening device for a yarn dyeing machine according to claim 8, characterized in that, The nozzle (105) is a flat nozzle that sprays air vertically.