Yarn collecting device, drying chamber and spinning device
By introducing a limiting part into the wire collection device, the problem of the membrane wire being easily jumped and fell off during the drying process is solved, and the stability and efficiency of the spinning process are improved.
Patent Information
- Application Number
- CN202421832016.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the drying process of the blood purification film, the membrane wire is prone to jump and fall off from the wire collection roller, resulting in the interruption of the membrane wire process and the need to re-pull the wire, affecting the stability and efficiency of the spinning process.
A wire collecting device is designed, including a wire collecting roller and a limiting portion. The minimum radial size of the limiting portion is greater than the maximum radial size of the wire collecting portion. The film wire can be limited in the wire collecting portion to avoid the pulsation of the film wire caused by electrostatic action.
Through the design of the limit part, the interruption of the spinning process caused by the film silk sliding down the wire collection part can be effectively avoided, the smoothness and stability of the spinning process can be improved, and the frequency of re-pulling of the wire can be reduced.
Smart Images
Figure CN222923335U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blood purification membrane preparation, in particular to a wire winding device, a drying chamber and a spinning device. Background Art
[0002] Blood purification technology is to draw the patient's blood out of the body and pass it through a purification device, so as to remove pathogenic substances in the blood and achieve the purpose of purifying the blood and treating diseases. One of the key components of the purification device is the blood purification membrane. The blood purification membrane is mostly a hollow fiber membrane. The main raw materials such as PES (Polyethersulfone), DMAC (Dimethylacetamide), and PVP (Polyvinyl pyrrolidone) are used to prepare the membrane spinning solution and the core liquid, and the membrane filaments are formed by the NIPS membrane filament process (Nonsolvent Induce Phase Separation). The manufacturing process includes: a solvent supply system, membrane spinning solution preparation, core liquid preparation, spinning, coagulation, water washing, drying and winding.
[0003] In the drying process, the membrane filaments need to be wound on the wire winding roller. When the membrane filaments are dried, they are prone to jump and fall off from the wire winding roller, causing the membrane filament process to be interrupted and requiring re-threading. Summary of the Utility Model
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the utility model is to propose a wire winding device, which can limit the membrane filaments in the wire winding roller and improve the smoothness of wire winding during the wire winding process.
[0005] The utility model also proposes a drying chamber.
[0006] The utility model also proposes a membrane filament device.
[0007] According to the wire winding device of the embodiment of the utility model, it includes at least one wire winding roller; the wire winding roller includes a wire winding part and a limiting part; the wire winding part extends along a first direction; the limiting parts are two spaced apart from each other in the first direction of the wire winding part; the maximum radial dimension of the wire winding part in the cross-section perpendicular to the first direction is smaller than the minimum radial dimension of the limiting part in the cross-section perpendicular to the first direction.
[0008] Preferably, the cross-sectional shapes of the wire winding part and the limiting part in the cross-section perpendicular to the first direction are the same.
[0009] Preferably, the wire winding part and the limiting part are coaxial cylinders.
[0010] Preferably, the axial length of one of the limiting parts is one-tenth to one-fourth of the axial length of the wire winding part.
[0011] Preferably, the limiting part is fixedly connected to the end surface of the wire winding part in the first direction.
[0012] Preferably, there are a plurality of wire winding rollers; the plurality of wire winding rollers are arranged at intervals in the second direction, and adjacent two wire winding rollers are spaced apart in the third direction; the first direction, the second direction and the third direction are perpendicular to each other.
[0013] Preferably, the wire winding device further includes an electrostatic eliminating device, the outer surface of the wire winding part is used for winding the film wire, and the electrostatic eliminating device is used for eliminating the static electricity of the film wire on the outer surface.
[0014] Preferably, the electrostatic eliminating device includes a fan assembly, and the outer surface of a part of the wire winding part is arranged opposite to the air outlet of the fan assembly.
[0015] The drying chamber according to the embodiment of the present invention includes the above-mentioned wire winding device.
[0016] The spinning device according to the embodiment of the present invention includes the above-mentioned drying chamber.
[0017] It can be seen from the technical solution that the embodiment provided by the present invention has the following advantages: the minimum radial dimension of the limiting part in the cross-section perpendicular to the first direction is greater than the maximum radial dimension of the film wire on the wire winding part. Thus, when the film wire moves to both ends of the wire winding part in the first direction, the limiting part can limit the film wire in the wire winding part. Description of the Drawings
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.
[0019] Figure 1 is a schematic structural diagram of a wire winding device according to an embodiment of the present invention;
[0020] Figure 2 is a schematic structural diagram of a spinning device according to an embodiment of the present invention.
[0021] Reference Signs:
[0022] Spinning device 1000;
[0023] Spinneret solution kettle 101, core liquid kettle 102, spinneret 200, first filter 301, second filter 302, coagulation bath 400, cleaning bath 500, drying chamber 600, winding device 700;
[0024] Wire winding device 10;
[0025] Wire winding roller 1, wire winding part 11, outer surface 111, limiting part 12;
[0026] Static eliminator 2;
[0027] First direction D1, second direction D2, third direction D3. Detailed implementation mode
[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.
[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.
[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0031] Next, refer to Figure 1 - Figure 2 Describe the wire winding device 10, drying chamber 600 and spinning device 1000 according to the embodiments of the present invention.
[0032] The spinning solution is prepared in the spinning solution kettle, and the core liquid is prepared in the core liquid kettle. The spinning solution kettle is connected to one inlet of the spinneret, and the core liquid is connected to the other inlet of the spinneret. A first filter is provided between the spinning solution kettle and the spinneret, and a second filter is provided between the core liquid kettle and the spinneret. The spinning solution and the core liquid are spun through the spinneret and then enter the coagulation bath for coagulation and the washing bath for washing in sequence. The membrane filaments enter the drying chamber for drying after passing through the washing bath, and the dried membrane filaments are wound into a roll by a winding device.
[0033] Receiving parts are provided in the coagulation bath, the washing bath and the drying chamber. The receiving parts are configured as roller structures. When the membrane filaments pass through the coagulation bath and the washing bath, the liquid wets the membrane filaments. When the liquid adheres to the membrane filaments, the surface tension makes it difficult for the membrane filaments to jump. When the membrane filaments are dried in the drying chamber, the membrane filaments often carry static electricity and jump, resulting in the membrane filaments being caught in the connection between the roller and the transmission part, causing the roller to jam and the spinning and receiving process to be interrupted. In order to re-draw the filaments, it is necessary to spray water to increase the water content of the membrane filaments, which makes the drying state of the spinning process unstable.
[0034] As Figure 1 and Figure 2 shown, the wire receiving device 10 according to an embodiment of the present invention includes at least one wire receiving roller 1.
[0035] The wire receiving roller 1 includes a wire receiving part 11 and a limiting part 12.
[0036] The wire receiving part 11 extends along a first direction. There are two limiting parts 12, and the two limiting parts 12 are spaced apart. One limiting part 12 is arranged at one end of the wire receiving part 11 in the first direction, and the other limiting part 12 is arranged at the other end of the wire receiving part 11 in the first direction. The maximum radial dimension of the wire receiving part 11 in the cross-section perpendicular to the first direction is smaller than the minimum radial dimension of the limiting part 12 in the cross-section perpendicular to the first direction.
[0037] The membrane filaments are wound on the wire receiving part 11 of the wire receiving roller 1, and the membrane filaments can be located at various positions of the wire receiving part 11 in the first direction. For example, the membrane filaments can be located at the maximum radial dimension of the wire receiving part 11 in the cross-section perpendicular to the first direction. The membrane filaments are flexible parts and are tensioned on the surface of the wire receiving part 11. The maximum radial dimension of the membrane filaments is the same as the maximum radial dimension of the wire receiving part 11 in the cross-section perpendicular to the first direction. The minimum radial dimension of the limiting part 12 in the cross-section perpendicular to the first direction is larger than the maximum radial dimension of the wire receiving part 11 in the cross-section perpendicular to the first direction. The minimum radial dimension of the limiting part 12 in the cross-section perpendicular to the first direction is larger than the maximum radial dimension of the membrane filaments on the wire receiving part 11. Thus, when the membrane filaments move towards both ends of the wire receiving part 11 in the first direction under the action of static electricity, the limiting part 12 can limit the membrane filaments in the wire receiving part 11.
[0038] In the related art, the driving assembly drives the wire collecting section to rotate around the rotation axis and conveys the membrane filament to the winding process. The wire collecting section is constructed as a cylinder or a prism, and the wire collecting section rotates around the axis of the cylinder or the prism to pull the membrane filament. In this process, the membrane filament may escape from the wire collecting section along both ends of the axial direction and get stuck at the connection between the wire collecting section and the driving assembly, resulting in interruption of spinning. In the present application, the limiting portion 12 can limit the membrane filament in the wire collecting section 11, which is beneficial to avoid interruption of the spinning process due to the membrane filament sliding down the wire collecting section 11, thereby improving the smoothness and stability of the spinning process.
[0039] According to the yarn collecting device of the embodiment of the utility model, when the membrane yarn moves toward the two ends of the yarn collecting part 11 in the first direction, the limiting part 12 can limit the membrane yarn in the yarn collecting part 11, thereby improving the smoothness and stability of the spinning process.
[0040] like Figure 1 As shown, in some embodiments, the cross-sectional shape of the wire collecting portion 11 in a direction perpendicular to the first direction is the same as the cross-sectional shape of the position limiting portion 12 in a direction perpendicular to the first direction. The wire collecting portion 11 and the position limiting portion 12 have the same structural features in the first direction, which helps to evenly share the load when subjected to force, thereby improving the stability and reliability of the entire structure.
[0041] like Figure 1 As shown, in some embodiments, the wire collecting portion 11 and the limiting portion 12 are coaxially arranged cylinders. The coaxially arranged cylindrical structure enables the wire collecting portion 11 and the limiting portion 12 to maintain concentric rotation during the rotation process, thereby reducing vibration and deviation caused by non-concentricity.
[0042] like Figure 1 As shown, in some embodiments, the axial length of a limiting portion 12 is one tenth to one quarter of the axial length of the wire receiving portion 11. The axial length of the limiting portion 12 is short, and the time and process required for the limiting portion 12 during processing and assembly are relatively small, which helps to improve production efficiency. Therefore, the wire receiving roller 1 can not only effectively limit the position, but also reduce the processing difficulty and cost of the wire receiving roller 1.
[0043] For example, the axial length of a limiting portion 12 is L1, and the axial length of the wire receiving portion is L2. L1 can be 0.1 to 0.25 times of L2, specifically, 0.1 times, 0.11 times, 0.14 times, 0.15 times, 0.17 times, 0.19 times, 0.21 times, 0.24 times, 0.25 times, etc., which are not listed here one by one.
[0044] like Figure 1As shown, in some embodiments, the limiting part 12 is fixedly connected to the end face of the wire winding part 11 in the first direction. In the first direction, the wire winding part 11 extends from the first end to the second end. One limiting part 12 is fixed at the first end of the wire winding part 11, and the other limiting part 12 is fixed at the second end of the wire winding part 11. The film wire is limited between the two limiting parts 12, increasing the area of the film wire wound by the wire winding roller 1.
[0045] In some alternative embodiments, the fixed connection between the limiting part 12 and the wire winding part 11 is one of bonding, welding, and screwing.
[0046] In some other alternative embodiments, the limiting part 12 and the wire winding part 11 can be integrally formed.
[0047] As Figure 1 and Figure 2 shown, in some embodiments, there are multiple wire winding rollers 1; the multiple wire winding rollers 1 are arranged at intervals in the second direction, and adjacent two wire winding rollers 1 are spaced apart in the third direction; the first direction, the second direction, and the third direction are perpendicular to each other. The multiple wire winding rollers 1 can tension the film wire on the surface of the wire winding rollers 1, which is beneficial to making the film wire smoother and reducing knotting and wrinkling during the conveying process of the film wire.
[0048] For example, when the cross-section of the wire winding roller 1 perpendicular to the first direction is a circular cross-section, the first direction is the axial direction of the wire winding roller 1, the second direction is the radial direction of the wire winding roller 1, and the third direction is the height direction. The axial directions of the multiple wire winding rollers 1 are arranged in parallel and are arranged along the radial direction of the wire winding roller 1. Adjacent two wire winding rollers 1 are spaced apart in height.
[0049] As Figure 1 shown, in some embodiments, the wire winding device 10 further includes an electrostatic elimination device 2. The electrostatic elimination device 2 can eliminate the static electricity of the film wire on the outer surface 111 of the wire winding roller 1, reduce the jumping of the film wire on the wire winding roller 1, and improve the smoothness of the film wire during the wire winding process.
[0050] As Figure 1 shown, in some embodiments, the electrostatic elimination device 2 includes a blower assembly, and the blower assembly has an air outlet; the outer surface of a part of the wire winding part is arranged opposite to the air outlet. The blower assembly can evenly distribute the air rich in charges generated by the electrostatic elimination device 2, making the static electricity of the film wire eliminated more fully.
[0051] As Figure 2 shown, the drying chamber 600 according to the embodiment of the present invention includes the wire winding device 10 according to the embodiment of the present invention.
[0052] As Figure 2As shown in the figure, the spinning device 1000 according to an embodiment of the present invention includes a drying chamber 600 according to an embodiment of the present invention. Specifically, the spinning device further includes a spinning solution kettle 101, a core solution kettle 102, a spinneret 200, a first filter 301, a second filter 302, a coagulation bath 400, a cleaning bath 500, and a winding device 700. The spinning solution is prepared in the spinning solution kettle 101, and the core solution is prepared in the core solution kettle 102. The spinning solution kettle 101 is connected to an inlet of the spinneret 200, and the core solution is connected to the other inlet of the spinneret 200. A first filter 301 is provided between the spinning solution kettle 101 and the spinneret 200, and a second filter 302 is provided between the core solution kettle 102 and the spinneret 200. After the spinning solution and the core solution are spun through the spinneret 200, they sequentially enter the coagulation bath 400 for coagulation and the cleaning bath 500 for cleaning. The membrane filaments enter the drying chamber 600 for drying after passing through the cleaning bath 500, and the dried membrane filaments are wound into a roll by the winding device 700.
[0053] A wire collecting roller 1 is provided in each of the coagulation bath 400, the cleaning bath 500, and the drying chamber 600. When the membrane filaments pass through the coagulation bath 400 and the cleaning bath 500, the liquid wets the membrane filaments. When the liquid adheres to the membrane filaments, the surface tension makes it difficult for the membrane filaments to jump. When the wire collecting roller 1 passes through the drying chamber 600 for drying, the membrane filaments are wound around the wire collecting portion 11 of the wire collecting roller 1, and the membrane filaments can be located at various positions of the wire collecting portion 11 in the first direction. For example, the membrane filaments can be located at the maximum radial dimension of the wire collecting portion 11 in the cross-section perpendicular to the first direction. The membrane filaments are flexible members and are tensioned on the surface of the wire collecting portion 11. The maximum radial dimension of the membrane filaments is the same as the maximum radial dimension of the wire collecting portion 11 in the cross-section perpendicular to the first direction. The minimum radial dimension of the limiting portion 12 in the cross-section perpendicular to the first direction is greater than the maximum radial dimension of the wire collecting portion 11 in the cross-section perpendicular to the first direction. The minimum radial dimension of the limiting portion 12 in the cross-section perpendicular to the first direction is greater than the maximum radial dimension of the membrane filaments on the wire collecting portion 11. Thus, when the membrane filaments move towards both ends of the wire collecting portion 11 in the first direction under the action of static electricity, the limiting portion 12 can limit the membrane filaments in the wire collecting portion 11, which is beneficial to avoiding the interruption of the spinning process due to the membrane filaments slipping off the wire collecting portion 11 and improving the smoothness and stability of the spinning process.
[0054] There are multiple wire collecting rollers 1; the multiple wire collecting rollers 1 are arranged at intervals in the second direction, and adjacent two wire collecting rollers 1 are spaced apart in the third direction; the first direction, the second direction, and the third direction are perpendicular to each other. The multiple wire collecting rollers 1 can tension the membrane filaments on the surface of the wire collecting rollers 1, which is beneficial to making the membrane filaments smoother and reducing the knotting and wrinkling during the conveying process of the membrane filaments.
[0055] For example, when the cross-section of the wire take-up roller 1 perpendicular to the first direction is a circular cross-section, the first direction is the axial direction of the wire take-up roller 1, the second direction is the radial direction of the wire take-up roller 1, and the third direction is the height direction. The axial directions of the plurality of wire take-up rollers 1 are arranged in parallel and are arranged along the radial direction of the wire take-up roller 1. Two adjacent wire take-up rollers 1 are spaced apart in height.
[0056] Other configurations and operations of the spinning device 1000 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here. In the description of the present invention, the "first feature" and "second feature" may include one or more of such features. Among them, the up-down direction, left-right direction, and front-back direction are based on the up-down direction, left-right direction, and front-back direction shown in the figure.
[0057] In the description of the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.
[0058] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0059] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A wire collecting device, characterized in that: comprising at least one wire collection roller; The wire collecting roller comprises a wire collecting portion and a limiting portion; The wire collecting portion is extended along a first direction; The limiting parts are two spaced apart from the wire collecting part in the first direction; The maximum radial dimension of the wire collecting portion in a cross section perpendicular to the first direction is smaller than the minimum radial dimension of the limiting portion in a cross section perpendicular to the first direction.
2. The wire collecting device according to claim 1, characterized in that: The cross-sectional shapes of the wire collecting portion and the limiting portion perpendicular to the first direction are the same.
3. The wire collecting device according to claim 1, characterized in that: The wire collecting portion and the limiting portion are coaxially arranged cylinders.
4. The wire collecting device according to claim 3, characterized in that: The axial length of one of the limiting portions is one tenth to one quarter of the axial length of the wire collecting portion.
5. The wire collecting device according to claim 1, characterized in that: The limiting portion is fixedly connected to the end surface of the wire collecting portion in the first direction.
6. The wire collecting device according to any one of claims 1 to 5, characterized in that: There are multiple wire collecting rollers; the multiple wire collecting rollers are spaced apart along the second direction, and two adjacent wire collecting rollers are spaced apart in the third direction; The first direction, the second direction, and the third direction are perpendicular to each other.
7. The wire collecting device according to claim 6, characterized in that: It also includes a static electricity elimination device. The outer surface of the wire collection part is used for winding the membrane wire, and the static electricity elimination device is used to eliminate static electricity on the membrane wire on the outer surface.
8. The wire collecting device according to claim 7, characterized in that: The static electricity elimination device comprises a fan assembly, and a portion of the outer surface of the wire collecting portion is arranged opposite to the air outlet of the fan assembly.
9. A drying chamber, characterized in that: It comprises a wire collecting device according to any one of claims 1-8.
10. A spinning device, characterized in that: Comprising a drying chamber according to claim 9.