Hollow fiber membrane tow splitting device
By adopting a comb needle structure with a circular ring and a locking nut design, the problems of inconvenient adjustment and difficult maintenance of hollow fiber membrane bundle devices are solved, realizing convenient position adjustment and simplified maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HEDA AUTOMATION EQUIP
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-24
AI Technical Summary
Existing hollow fiber membrane bundle conveying devices suffer from problems such as inconvenient comb tooth adjustment, high cost, easy damage and difficult maintenance, and the need to stop the machine to re-thread the bundle.
The comb needles are equipped with rings at the tail, and the comb needles are separated by shims. There are locking nuts on both sides for pre-tightening. The adjustment can be achieved by adjusting the position of the locking nuts. In the event of a film breakage, the comb needles can be squeezed open for easy cleaning and maintenance.
It enables convenient adjustment and maintenance of the comb needle position, reduces the maintenance difficulty and cost of the device, avoids damage to the comb needles and rollers, and simplifies the process of reguiding the yarn bundle.
Smart Images
Figure CN224160204U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fiber membrane technology, and specifically relates to a hollow fiber membrane splitting device. Background Technology
[0002] Hollow fiber membranes are fibrous membranes with a self-supporting structure. They are a type of asymmetric membrane, where the dense layer can be located on the outer surface of the fiber (e.g., in reverse osmosis membranes) or on the inner surface (e.g., in microfiltration and ultrafiltration membranes). Hollow fiber membrane production involves preparing the external fiber solution material and the internal core solution material, extruding them, removing the core solution to form a hollow structure, and then performing cleaning, drying, and winding processes.
[0003] However, existing devices for conveying hollow fiber membrane bundles typically employ a structure of rollers and comb teeth, which has the following problems:
[0004] 1. The existing comb teeth are fixed, which makes it inconvenient to adjust the spacing between the comb teeth. The comb teeth themselves are fixed, and once adjustment is needed, the entire comb teeth rack or plate needs to be replaced, which is inconvenient to use. At the same time, once the comb teeth are damaged, the entire comb needs to be replaced, which is costly. Once the filaments break, they will get tangled on the comb teeth and rollers, making cleaning difficult and potentially damaging the comb teeth.
[0005] 2. The existing comb teeth and conveyor rollers are fixed at both ends. In actual use, if it is necessary to re-thread the yarn bundle, the machine needs to be stopped from the middle. This is inconvenient for personnel to operate, and sometimes personnel need to enter the equipment to re-thread the yarn bundle. Utility Model Content
[0006] To overcome the aforementioned shortcomings, this utility model proposes a hollow fiber membrane splitting device. This device employs comb needles with rings at the tail, with washers separating the needles, and locking nuts on both sides for pre-tightening. Adjusting the left and right positions of the comb needles is simply a matter of adjusting the positions of the left and right locking nuts, making adjustment convenient. Furthermore, in the event of membrane breakage during equipment operation, membrane fibers will become entangled on the drive roller. Traditional welded comb needles, due to their fixed position, can be damaged or the drive roller bent. However, this structure, under the pressure of the membrane fibers from the roller, will push the comb needles apart when the pressure exceeds the locking friction. Later restoration only requires removing the broken fibers and readjusting the position, then pre-tightening the locking nuts. Maintenance is convenient and it is less prone to damage.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a hollow fiber membrane splitting device is provided. It includes an active roller and a passive roller, which are arranged at intervals, with the active roller at the upper end and the passive roller at the lower end, respectively. The fiber bundle is wound and tensioned between the active roller and the passive roller. A comb is provided near the active roller; the comb is an integral structure with a ring at the rear end. The comb is fitted onto a mounting rod below the active roller using the tail ring. The combs are separated by washers, and locking nuts on both sides are used for pre-tightening to press the combs and washers together.
[0008] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is that the two ends of the mounting rod are mounted using brackets.
[0009] A further preferred technical solution of the hollow fiber membrane splitting device according to the present invention is as follows: threaded sections are provided at both ends of the mounting rod, and the threaded ends are installed by nuts after passing through the bracket. The comb needles and washers are pressed together by locking nuts at both ends of the mounting rod inside the bracket.
[0010] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is that the tail of the comb needle is tangential to the circular ring.
[0011] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is that the annulus is positioned away from the drive roller.
[0012] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is as follows: the mounting rod is located directly below the drive roller, and the comb needles mounted on the mounting rod are inclinedly arranged on the fiber feeding side of the drive roller.
[0013] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is as follows: the middle of the mounting rod is a mounting section, and comb needles and gaskets are installed on both sides of the mounting section so that the comb needles are guided from both ends.
[0014] A further preferred technical solution of the hollow fiber membrane filament bundle separating device according to the present invention is: the comb needles on both sides are arranged symmetrically, and the number of comb needles corresponds to the number of filament bundles.
[0015] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is as follows: the distance between the comb needle and the active roller is 1cm-5cm, and the angle between the comb needle and the vertical direction is 60°.
[0016] A further preferred embodiment of the hollow fiber membrane splitting device according to the present invention is that the diameter of the comb needle's ring is 1mm-2mm smaller than the diameter of the gasket.
[0017] Compared with the prior art, the technical solution of this utility model has the following advantages / benefits:
[0018] 1. This device uses comb needles with rings at the tail, separated by washers, and pre-tightened with locking nuts on both sides. Adjusting the left and right positions of the comb needles is simple; just adjust the positions of the left and right locking nuts. Furthermore, in the event of a film breakage during operation, film fibers will become entangled on the drive roller. Traditional welded comb needles, due to their fixed position, can be damaged or the drive roller bent. However, this structure, under the pressure of the film fibers from the roller, will push the comb needles apart when the pressure exceeds the locking friction. Restoration only requires removing the broken fibers and readjusting the position, then pre-tightening the locking nuts. Maintenance is convenient and it is less prone to damage. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a hollow fiber membrane splitting device according to the present invention.
[0021] Figure 2 This is a schematic diagram of the hollow fiber membrane splitting device of the present invention.
[0022] Figure 3 This is a schematic diagram of the comb needle installation structure of a hollow fiber membrane splitting device according to the present invention.
[0023] Figure 4 This is a schematic diagram of the comb needles and pads of a hollow fiber membrane splitting device according to the present invention.
[0024] The markings in the diagram are as follows: 1. Active roller 2. Passive roller 3. Comb needle 301. Needle body 302. Ring 4. Mounting rod 401. Threaded section 402. Mounting section 5. Washer 6. Locking nut 7. Bracket. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the detailed description of the embodiments of this utility model provided below is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
[0027] Example 1:
[0028] like Figures 1-4 As shown, a hollow fiber membrane splitting device includes an active roller 1 and a passive roller 2, which are arranged at intervals, with the active roller 1 and passive roller 2 located at the upper and lower ends, respectively. The fiber bundle is wound and tensioned between the active roller 1 and passive roller 2. A comb needle 3 is arranged near the active roller 1. The comb needle 3 is an integral structure with a ring 302 at the rear end. The comb needle 3 is fitted onto the mounting rod 4 below the active roller 1 by the tail ring 302. The comb needles 3 are separated by shims 5, and locking nuts 6 on both sides are used for pre-tightening to press the comb needles 3 and shims 5 together. The tightness of the comb needles 3 can be adjusted by adjusting the tightness of the locking nuts 6. At the same time, the spacing between the comb needles 3 can be adjusted by adjusting the thickness and number of shims 5.
[0029] The two ends of the mounting rod 4 are mounted by brackets 7. The brackets 7 are inverted and installed below the drive roller 1. The comb needle 3 is mounted on the mounting rod 4 by the ring 302 at the tail end. The comb needle 3 is installed obliquely upward and located on the side of the yarn bundle inlet to guide the yarn bundle. The ring 302 is located on the side away from the drive roller 1 with the needle body of the comb needle 3 as the reference.
[0030] The mounting rod 4 has threaded sections 401 at both ends. After the threaded ends pass through the bracket 7, they are installed with nuts. The comb needle 3 and the washer 5 are pressed together by the locking nuts 6 at both ends of the mounting rod 4 inside the bracket 7. The tightness can be adjusted by the locking nuts 6. When the filament bundle breaks and becomes entangled, the comb needle 3 can be loosened for easy cleaning.
[0031] The tail of the comb needle 3 is tangent to the ring 302, that is, the needle body and the ring 302 at the tail are designed as an integral piece, forming a "6" shape. The ring 302 and the comb needle 3 are flush with the side, which makes it easy to press the pad 5. The ring 302 is set away from the active roller, which makes it easy to install.
[0032] The mounting rod 4 is located directly below the drive roller. The comb needle 3, which is mounted on the mounting rod 4, is inclined on the side of the drive roller's yarn feeding. The inclination angle can be adjusted as needed. The inclination direction is upward, and if necessary, the inclination angle can be downward.
[0033] The middle of the mounting rod 4 is the mounting section 402. The comb needles 3 and the pads 5 are installed on both sides of the mounting section 402 so that the comb needles 3 are guided from both ends. The thickness and number of the pads 5 can be adjusted according to the needs. That is, if necessary, there can be more than two pads 5 between adjacent comb needles 3.
[0034] The comb needles 3 on both sides are arranged symmetrically, and the number of comb needles 3 corresponds to the number of filament bundles. This ensures that the filament bundles are fed from both sides. If the filament bundles break, they can be easily re-threaded from both sides without personnel having to enter the equipment to re-thread the filament bundles.
[0035] The distance between the comb needle 3 and the active roller 1 is 1cm-5cm, and the angle between the comb needle 3 and the vertical direction is 60°. Of course, the angle and distance can be optimized and adjusted according to the requirements, and are not necessarily limited to the above angle range.
[0036] The diameter of the ring 302 of the comb needle 3 is 1mm-2mm smaller than the diameter of the pad 5, that is, the pad 5 completely covers the ring 302 of the comb needle 3, so that the comb needle 3 can be extended independently, preventing the ring 302 from partially interfering with the transport of the filament bundle.
[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0040] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A hollow fiber membrane splitting device, characterized in that, It includes an active roller and a passive roller, which are arranged at intervals and located at the upper and lower ends respectively. The filament bundle is wound and tensioned between the active roller and the passive roller. A comb needle is provided near the active roller. The comb needle is an integral structure with a ring at the rear end. The comb needle is fitted onto the mounting rod below the active roller by the tail ring. The comb needles are separated by washers, and locking nuts on both sides are used for pre-tightening to press the comb needles and washers together.
2. The hollow fiber membrane splitting device according to claim 1, characterized in that, The two ends of the mounting rod are mounted using brackets.
3. The hollow fiber membrane splitting device according to claim 2, characterized in that, The mounting rod has threaded sections at both ends. After the threaded ends pass through the bracket, they are installed using nuts. The comb needles and washers are pressed together by locking nuts at both ends of the mounting rod inside the bracket.
4. The hollow fiber membrane splitting device according to claim 1, characterized in that, The tail of the comb needle is tangent to the circular ring.
5. The hollow fiber membrane splitting device according to claim 4, characterized in that, The circular ring is positioned away from the drive roller.
6. The hollow fiber membrane splitting device according to claim 1, characterized in that, The mounting rod is located directly below the drive roller, and the comb needles mounted on the mounting rod are inclined on the wire feeding side of the drive roller.
7. The hollow fiber membrane splitting device according to claim 1, characterized in that, The middle of the mounting rod is the mounting section, and comb needles and pads are installed on both sides of the mounting section so that the comb needles are guided from both ends.
8. A hollow fiber membrane splitting device according to claim 7, characterized in that, The comb needles on both sides are arranged symmetrically, and the number of comb needles corresponds to the number of filament bundles.
9. A hollow fiber membrane splitting device according to claim 1, characterized in that, The distance between the comb needle and the drive roller is 1cm-5cm, and the angle between the comb needle and the vertical direction is 60°.
10. A hollow fiber membrane splitting device according to claim 1, characterized in that, The diameter of the comb needle's ring is 1mm-2mm smaller than the diameter of the pad.