Accurate filament cutting device for fiber membrane bundle for hemodialyzer

Abstract

The utility model discloses a fine shredding device for a fiber membrane bundle for a hemodialyzer, and relates to the field of fiber membrane bundle processing. The fine cutting device comprises a fixed frame and a fiber membrane bundle, a fine cutting mechanism is arranged on the fixed frame, the fine cutting mechanism comprises a hydraulic cylinder fixedly connected to the top face of the fixed frame, and the output end of the hydraulic cylinder is fixedly connected with a bottom plate. By arranging the positioning assembly, when the driving hydraulic cylinder drives the bottom plate to move downwards, the two first positioning frames on the bottom face of the bottom plate can be driven to move downwards till the first positioning frames make contact with the second positioning frames, and the inner walls of the first positioning frames and the inner walls of the second positioning frames make contact with fiber membrane bundles; at the moment, a telescopic rod and a spring I are compressed, so that a positioning frame I and a positioning frame II are matched with each other to position the cutting position of the fiber membrane bundle, the situation that multiple strands of membrane bundles in the fiber membrane bundle are broken and staggered during cutting is prevented, and the cutting precision is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of fiber membrane bundle processing technology, and in particular relates to a fine cutting device for fiber membrane bundles used in hemodialysis machines. Background Technology

[0002] The fiber membrane bundles used in hemodialysis machines are usually cylindrical, and each bundle consists of tens of thousands of parallel fibers. The diameter of these fibers is usually between tens of micrometers and hundreds of micrometers. Through special processes (such as wrapping with paper membrane sleeves), these parallel fibers are wrapped together to form a cylindrical structure so that they can be assembled into the dialyzer shell.

[0003] However, in the existing technology, most cutting equipment cannot effectively position the cutting area when cutting fiber filament bundles, which causes the fiber filament bundles to loosen. This results in uneven cuts, affecting subsequent processing and use. For example, when cutting fiber filament bundles, the inability to accurately position the cutting position leads to uneven edges of the cut fiber filament bundles, which cannot meet the requirements for material size and precision. Utility Model Content

[0004] The purpose of this invention is to provide a precision cutting device for fiber membrane bundles used in hemodialysis machines. By incorporating a positioning component, positioning frame one and positioning frame two cooperate to position the cutting location of the fiber membrane bundle, preventing multiple strands of the membrane bundle from breaking apart and becoming misaligned during cutting. This ensures cutting accuracy, improves the flatness of the cut surface, and enhances product quality. It solves the problem that most cutting equipment cannot effectively position the cutting area when cutting fiber membrane bundles, leading to loosening of the fiber membrane bundles. This results in uneven cut surfaces, affecting subsequent processing and use.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a fine cutting device for fiber membrane bundles for hemodialysis machines, including a fixed frame and a fiber membrane bundle, wherein a fine cutting mechanism is provided on the fixed frame.

[0007] The precision cutting mechanism includes a hydraulic cylinder fixedly connected to the top surface of a fixed frame. The output end of the hydraulic cylinder is fixedly connected to a base plate. Two positioning components are provided on the bottom surface of the base plate. The two positioning components are symmetrically arranged about the hydraulic cylinder as the central axis. Each positioning component includes two telescopic rods fixedly connected to the bottom surface of the base plate. The bottom ends of the two telescopic rods are fixedly connected to a positioning frame one. Spring one is wound around the outer wall of each of the two telescopic rods. The top ends of the two spring one are fixedly connected to the bottom surface of the base plate. The bottom ends of the two spring one are fixedly connected to the top surface of the positioning frame one. A cutting blade is fixedly connected to the bottom surface of the base plate. The cutting blade is positioned directly above the positioning frame one. Two positioning frames two are fixedly connected to the inner bottom wall of the fixed frame.

[0008] Furthermore, the second positioning frame is internally provided with two cleaning components, which are symmetrically arranged about the cutting blade as the central axis.

[0009] Furthermore, the cleaning component includes two fixed plates fixedly connected to the bottom surface of the positioning frame, and a sliding rod slidably passing through each of the two fixed plates. An L-shaped plate is fixedly connected to one end of each of the two sliding rods near the cutting plate, and a gasket is fixedly connected to one end of each of the two sliding rods away from the L-shaped plate. A cleaning roller is rotatably connected between the two L-shaped plates, and the cleaning roller is in contact with the cutting plate. The cleaning roller is made of rubber.

[0010] Furthermore, a second spring is wound around the outer wall of the slide rod, one end of the second spring is fixedly connected to a washer, and the other end of the second spring is fixedly connected to a fixing plate.

[0011] Furthermore, the inner bottom wall of the fixed frame is provided with two fixing components, which are symmetrically arranged about the hydraulic cylinder as the central axis.

[0012] Furthermore, the fixing component includes a slide rail fixedly connected to the bottom wall of the fixed frame, two movable plates slidably connected to the bottom surface of the slide rail, the bottom surfaces of the two movable plates being slidably connected to the bottom wall of the fixed frame, and a fixing plate being fixedly connected to the top surface of the two movable plates, the fixing plate being slidably connected to the slide rail.

[0013] Furthermore, a support frame is fixedly connected to the inner wall of the fixed frame, and a motor is fixedly connected to the inner wall of the support frame. The output end of the motor is fixedly connected to a bidirectional threaded rod through an output shaft. The bidirectional threaded rod rotatably passes through the slide rail. Both fixed plates are threaded onto the outer wall of the bidirectional threaded rod. An arc-shaped clamping plate is fixedly connected to the top surface of both fixed plates. The two fixed plates are symmetrically arranged around the fiber filament bundle as the central axis. The fiber filament bundle is in contact with the inner wall of the arc-shaped clamping plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. By incorporating a positioning component, when the base plate is moved downward by the driving hydraulic cylinder, two positioning frames on the bottom surface of the base plate are also moved downward until positioning frame one contacts positioning frame two. At this point, the inner walls of both positioning frame one and positioning frame two are in contact with the fiber filament bundle. The telescopic rod and spring one are compressed, allowing positioning frame one and positioning frame two to cooperate in positioning the cutting position of the fiber filament bundle. This prevents multiple strands of the fiber filament bundle from breaking apart and becoming misaligned during cutting, ensuring cutting accuracy and improving the flatness of the cut surface, thus enhancing product quality. After positioning frame one and positioning frame two have cooperated in positioning the cutting position, the hydraulic cylinder can drive the cutting blade to continue moving downward and cut the fiber filament bundle.

[0016] 2. With the cleaning component, after the cutting disc continues to move downwards and cuts the fiber filament bundle, the cutting disc moves into the interior of the positioning frame two. At this time, the outer wall of the cutting disc comes into contact with the two cleaning rollers and squeezes the two cleaning rollers to move outwards, so that the cleaning rollers roll and clean the surface of the cutting disc. During the rolling process, the cleaning rollers can effectively remove dust, debris and other impurities from the surface of the cutting disc. The cleaning rollers are made of rubber, which can effectively remove dust and avoid damage to the cutting disc, ensuring the cleanliness and integrity of the cutting disc. When the two cleaning rollers expand outwards, they will drive the L-shaped plate and the slide bar to move. In conjunction with the cleaning component, the second spring is stretched. When the cutting disc moves upwards, the two cleaning rollers move towards the middle and reset under the action of the second spring.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the cleaning component of this utility model;

[0022] Figure 4 for Figure 2Enlarged structural diagram at point A;

[0023] Figure 5 for Figure 2 A magnified structural diagram at point B in the middle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Fixed frame; 2. Precision cutting mechanism; 3. Fiber filament bundle; 21. Hydraulic cylinder; 22. Base plate; 23. Positioning assembly; 231. Telescopic rod; 232. Positioning frame one; 233. Spring one; 234. Cutting disc; 24. Positioning frame two; 25. Cleaning assembly; 251. Fixing plate; 252. Slide rod; 253. L-shaped plate; 254. Gasket; 255. Spring two; 256. Cleaning roller; 26. Fixed assembly; 261. Slide rail; 262. Moving plate; 263. Fixing plate; 264. Support frame; 265. Motor; 266. Bidirectional threaded rod; 27. Arc-shaped clamping plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 As shown, this utility model is a fine cutting device for fiber membrane bundles for hemodialysis machines, including a fixed frame 1 and a fiber membrane bundle 3, and a fine cutting mechanism 2 is provided on the fixed frame 1.

[0028] The precision cutting mechanism 2 includes a hydraulic cylinder 21 fixedly connected to the top surface of the fixed frame 1. A base plate 22 is fixedly connected to the output end of the hydraulic cylinder 21. Two positioning components 23 are arranged symmetrically about the hydraulic cylinder 21 on the bottom surface of the base plate 22. Each positioning component 23 includes two telescopic rods 231 fixedly connected to the bottom surface of the base plate 22. A positioning frame 232 is fixedly connected to the bottom end of each telescopic rod 231. Springs 233 are wound around the outer walls of both telescopic rods 231. The top ends of both springs 233 are fixedly connected to the bottom surface of the base plate 22, and the bottom ends of both springs 233 are fixedly connected to the top surface of the positioning frame 232. A cutting disc 234 is fixedly connected to the bottom surface of the base plate 22. 4. Positioned directly above positioning frame 1 (232), two positioning frames (24) are fixedly connected to the inner bottom wall of the fixed frame 1. With the positioning component 23, when the base plate 22 is moved downwards by the driving hydraulic cylinder 21, the two positioning frames (232) on the bottom surface of the base plate 22 can be moved downwards until they contact the positioning frames (24). At this point, the inner walls of both positioning frames (232 and 24) contact the fiber filament bundle 3. The telescopic rod 231 and spring 233 are compressed, causing the positioning frames (232 and 24) to cooperate in positioning the cutting position of the fiber filament bundle 3, preventing the multiple strands of the fiber filament bundle 3 from breaking apart and becoming misaligned during cutting, thus ensuring cutting accuracy. This improves the flatness of the cut surface and enhances product quality. After the positioning frame 1 232 and positioning frame 24 work together to position the cutting position, the hydraulic cylinder 21 can drive the cutting blade 234 to move continuously downward and cut the fiber filament bundle 3. The positioning frame 24 has two cleaning components 25 inside, which are symmetrically arranged about the cutting blade 234. The cleaning components 25 include two fixing plates 251 fixedly connected to the bottom surface of the positioning frame 24. Sliding rods 252 slide through both fixing plates 251. L-shaped plates 253 are fixedly connected to the ends of the two sliding rods 252 near the cutting blade 234, and L-shaped plates 253 are fixedly connected to the ends of the two sliding rods 252 away from the L-shaped plates 253. A gasket 254 is attached, and a cleaning roller 256 is rotatably connected between two L-shaped plates 253. The cleaning roller 256 is in contact with the cutting disc 234 and is made of rubber. A second spring 255 is wound around the outer wall of the slide rod 252. One end of the second spring 255 is fixedly connected to the gasket 254, and the other end is fixedly connected to the fixing plate 251. With the cleaning assembly 25, after the cutting disc 234 continues to move downward and cuts the fiber filament bundle 3, the cutting disc 234 moves into the interior of the positioning frame 24. At this time, the outer wall of the cutting disc 234 contacts the two cleaning rollers 256 and squeezes the two cleaning rollers 256 to move outward, so that the cleaning rollers 256 roll and clean the surface of the cutting disc 234.During its rolling process, the cleaning roller 256 effectively removes dust, debris, and other impurities from the surface of the cutting disc 234. Made of rubber, the cleaning roller 256 effectively removes dust while preventing damage to the cutting disc 234, ensuring its cleanliness and integrity. As the two cleaning rollers 256 expand outwards, they move the L-shaped plate 253 and the slide bar 252, which, in conjunction with the cleaning component 25, stretches the second spring 255. When the cutting disc 234 moves upwards, the two cleaning rollers 256, under the action of the second spring 255, move back towards the center to reset. Two fixing components 26 are provided on the inner bottom wall of the fixed frame 1. These two fixing components 26 are symmetrically arranged about the hydraulic cylinder 21. Each fixing component 26 includes a slide rail 261 fixedly connected to the inner bottom wall of the fixed frame 1. Two moving plates 262 are slidably connected to the bottom surface of the slide rail 261, and the bottom surfaces of both moving plates 262 are slidably connected to the inner bottom wall of the fixed frame 1. Fixed supports are fixed to the top surfaces of both moving plates 262. Plate 263, fixed plate 263 is slidably connected to slide rail 261, support frame 264 is fixedly connected to the inner bottom wall of fixed frame 1, motor 265 is fixedly connected to the inner wall of support frame 264, output end of motor 265 is fixedly connected to bidirectional threaded rod 266 through output shaft, bidirectional threaded rod 266 rotatably passes through slide rail 261, two fixed plates 263 are threaded on the outer wall of bidirectional threaded rod 266, arc-shaped clamping plate 27 is fixedly connected to the top surface of two fixed plates 263, two fixed... Plate 263 is symmetrically arranged around the central axis of fiber filament bundle 3. Fiber filament bundle 3 contacts the inner wall of the arc-shaped clamping plate 27. Through the installation of a fixing component 26, a drive motor 265 rotates two bidirectional threaded rods 266. The two fixing plates 263, in cooperation with the moving plate 262 and the slide rail 261, simultaneously move closer or further apart, causing the arc-shaped clamping plate 27 on the two fixing plates 263 to fix the fiber filament bundle 3. This, in conjunction with the positioning component 23, further fixes and positions the fiber filament bundle 3.

[0029] A specific application of this embodiment is as follows: By setting the positioning component 23, when the base plate 22 is moved downward by the driving hydraulic cylinder 21, the two positioning frames 232 on the bottom surface of the base plate 22 can be moved downward until the positioning frame 232 contacts the positioning frame 24. The inner walls of the positioning frame 232 and the positioning frame 24 are in contact with the fiber filament bundle 3. At this time, the telescopic rod 231 and the spring 233 are compressed, so that the positioning frame 232 and the positioning frame 24 cooperate to position the cutting position of the fiber filament bundle 3, preventing the multiple strands of the fiber filament bundle 3 from breaking apart and misaligning during cutting, ensuring the cutting accuracy, thereby improving the flatness of the cut surface and improving product quality. After the positioning frame 232 and the positioning frame 24 cooperate to position the cutting position, the hydraulic cylinder 21 can drive the cutting blade 234 to move downward continuously and cut the fiber filament bundle 3.

[0030] With the cleaning component 25 in place, after the cutting disc 234 has finished cutting the fiber filament bundle 3 by continuously moving downward, the cutting disc 234 moves into the interior of the positioning frame 24. At this time, the outer wall of the cutting disc 234 contacts the two cleaning rollers 256 and squeezes the two cleaning rollers 256 to move outward, so that the cleaning rollers 256 roll and clean the surface of the cutting disc 234. During the rolling process, the cleaning rollers 256 can effectively remove dust, debris and other impurities from the surface of the cutting disc 234. The cleaning rollers 256 are made of rubber, which can effectively remove dust and avoid damage to the cutting disc 234, ensuring the cleanliness and integrity of the cutting disc. When the two cleaning rollers 256 expand outward, they will drive the L-shaped plate 253 and the slide bar 252 to move. In conjunction with the cleaning component 25, the spring 255 is stretched. When the cutting disc 234 moves upward, the two cleaning rollers 256 move towards the middle and reset under the action of the spring 255.

[0031] With the fixed component 26 provided, the drive motor 265 drives the two bidirectional threaded rods 266 to rotate. The two fixed plates 263 move closer or further away from each other simultaneously with the cooperation of the moving plate 262 and the slide rail 261, so that the arc-shaped clamps 27 on the two fixed plates 263 fix the fiber filament bundle 3, thereby cooperating with the positioning component 23 to further fix and position the fiber filament bundle 3.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A blood dialysis fiber silk membrane bundle cutting device, comprising a fixed frame (1) and a fiber silk membrane bundle (3), and a cutting mechanism (2) is arranged on the fixed frame (1), characterized in that: the cutting mechanism (2) comprises a hydraulic cylinder (21) fixedly connected to the top surface of the fixed frame (1), the output end of the hydraulic cylinder (21) is fixedly connected with a bottom plate (22), the bottom surface of the bottom plate (22) is provided with two positioning assemblies (23), the two positioning assemblies (23) are symmetrically arranged with the hydraulic cylinder (21) as the central axis, the positioning assembly (23) comprises two telescopic rods (231) fixedly connected to the bottom surface of the bottom plate (22), the bottom ends of the two telescopic rods (231) are fixedly connected with a positioning frame one (232), the outer walls of the two telescopic rods (231) are both wound with a spring one (233), the top ends of the two spring ones (233) are both fixedly connected with the bottom surface of the bottom plate (22), the bottom ends of the two spring ones (233) are both fixedly connected with the top surface of the positioning frame one (232), the bottom surface of the bottom plate (22) is fixedly connected with a cutting piece (234), the cutting piece (234) is arranged directly above the positioning frame one (232), and the inner bottom wall of the fixed frame (1) is fixedly connected with two positioning frames two (24).

2. The device according to claim 1, wherein the device is used for cutting the fiber yarns of a fiber yarn membrane bundle for a hemodialyzer. The inside of the positioning frame two (24) is provided with two cleaning assemblies (25), and the two cleaning assemblies (25) are symmetrically arranged with the cutting piece (234) as the central axis.

3. The device according to claim 2, wherein the device is used for cutting the fiber yarns of a fiber yarn membrane bundle for a hemodialyzer. The cleaning assembly (25) comprises two fixed pieces (251) fixedly connected to the bottom surface of the positioning frame two (24), two sliding rods (252) are slidingly penetrated through the two fixed pieces (251), one end of each of the two sliding rods (252) close to the cutting piece (234) is fixedly connected with an L-shaped plate (253), one end of each of the two sliding rods (252) away from the L-shaped plate (253) is fixedly connected with a gasket (254), a cleaning roller (256) is rotatably connected between the two L-shaped plates (253), the cleaning roller (256) is in contact with the cutting piece (234), and the cleaning roller (256) is made of rubber.

4. The device according to claim 3, wherein the device is used for cutting the fiber yarns of a fiber yarn membrane bundle for a hemodialyzer. The outer wall of the sliding rod (252) is wound with a spring two (255), one end of the spring two (255) is fixedly connected with the gasket (254), and the other end of the spring two (255) is fixedly connected with the fixed piece (251).

5. The device according to claim 4, wherein the device is used for cutting the fiber yarns of a fiber yarn membrane bundle for a hemodialyzer. The inner bottom wall of the fixed frame (1) is provided with two fixing assemblies (26), and the two fixing assemblies (26) are symmetrically arranged with the hydraulic cylinder (21) as the central axis.

6. The device according to claim 5, wherein the device is used for cutting the fiber yarns of a fiber yarn membrane bundle for a hemodialyzer. The fixing assembly (26) comprises a sliding rail (261) fixedly connected to the inner bottom wall of the fixed frame (1), and two moving plates (262) are slidingly connected to the bottom surface of the sliding rail (261), the bottom surfaces of the two moving plates (262) are slidingly connected with the inner bottom wall of the fixed frame (1), the top surfaces of the two moving plates (262) are fixedly connected with a fixed plate (263), and the fixed plate (263) is slidingly connected with the sliding rail (261).

7. The device according to claim 6, wherein the device is used for cutting the fiber yarns of a fiber yarn membrane bundle for a hemodialyzer. The inner wall of the fixed frame (1) is fixedly connected with a support frame (264), the inner wall of the support frame (264) is fixedly connected with a motor (265), the output end of the motor (265) is fixedly connected with a bidirectional threaded rod (266) through an output shaft, the bidirectional threaded rod (266) rotates through the slide rail (261), the outer wall of the bidirectional threaded rod (266) is threadedly sleeved with two fixed plates (263), the top surface of the two fixed plates (263) is fixedly connected with an arc-shaped clamping plate (27), and the two fixed plates (263) are symmetrically arranged with the fiber silk membrane bundle (3) as the central axis, wherein the fiber silk membrane bundle (3) is in contact with the inner wall of the arc-shaped clamping plate (27).

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