End face aluminum foil sintering device for hemodialyzer machining
By designing a sintering device for aluminum foil end faces in hemodialysis machine processing, which includes a transport clamping component, an extrusion fixing component, and a linkage component, the problem of unstable aluminum foil connection at the dialyzer port was solved, achieving a stable and convenient aluminum foil sintering and sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ERICSSON LIFE TECHNOLOGIES CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-12
AI Technical Summary
In the prior art, the aluminum foil is not firmly connected to the dialyzer when the dialyzer port is sealed, and the lack of an effective fixing device leads to troublesome operation and unstable position.
A device for sintering aluminum foil at the end face of a hemodialysis machine was designed, including a transport clamping assembly, an extrusion fixing assembly, a pushing assembly, and a linkage assembly. The device uses a hydraulic cylinder to drive an arc-shaped extrusion plate and a heating block to sinter and seal the dialyzer port with aluminum foil. The device also utilizes springs and a linkage structure to ensure the stability and ease of operation of the dialyzer.
Stable sintering and sealing of the aluminum foil at the dialyzer port was achieved, preventing dialyzer position displacement and improving the convenience of operation and the firmness of the connection between the aluminum foil and the dialyzer.
Smart Images

Figure CN224230686U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dialyzer manufacturing technology, and specifically relates to a device for sintering end-face aluminum foil for processing hemodialyzers. Background Technology
[0002] A dialyzer, commonly known as an artificial kidney, is mainly used to treat chronic renal failure, acute renal failure, and drug poisoning. During manufacturing, to ensure treatment safety, prevent blood leakage, and ensure smooth blood flow during dialysis, both ends of the dialyzer are sealed with aluminum foil.
[0003] Chinese Patent Network CN213454939U discloses a sintering machine for aluminum foil on the end face of a hemodialysis machine. When sealing both ends of the dialyzer, the device places the dialyzer on a guide rail trolley. When the guide rail trolley carrying the dialyzer passes through the first sintering host, the corresponding aluminum foil is sintered to one end of the dialyzer. When it passes through the second sintering host, the corresponding aluminum foil is sintered to the other end of the dialyzer.
[0004] In the existing technology, when sintering aluminum foil to one end of the dialyzer, a heating head needs to apply a certain pressure to the aluminum foil so that the aluminum foil can be connected to the dialyzer. When the heating head squeezes the aluminum foil, the dialyzer on the guide carriage needs to remain stationary. Since there are no fixing devices set at the corresponding positions of the first and second sintering main units, fixing devices need to be set on the guide carriage. This setting makes it more troublesome to place the dialyzer on the guide carriage. However, if no fixing device is set, the connection between the aluminum foil and the dialyzer port can be affected when sealing the port of the dialyzer.
[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0006] In view of the problems in the related technologies, this utility model proposes an end-face aluminum foil sintering device for processing hemodialyzers, so as to overcome the above-mentioned technical problems existing in the existing related technologies.
[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0008] This utility model relates to a sintering device for end face aluminum foil in hemodialysis machine processing, including a workbench, a transport clamping assembly on the top of the workbench, a mounting frame fixedly connected to the top of the workbench, a pressing and fixing assembly inside the mounting frame, a pushing assembly on both the front and back of the mounting frame, a heating block at one end of the pushing assembly, and a linkage assembly between the pushing assembly and the pressing and fixing assembly.
[0009] Furthermore, the transport clamping assembly includes a transport belt, the workbench has an installation groove corresponding to the transport belt, a rotating roller is rotatably connected inside the installation groove, the rotating roller is movably connected to the transport belt, a placement seat is fixedly connected to the outer surface of the transport belt, a motor is fixedly installed on the back of the workbench, and the output end of the motor is fixedly connected to the rotating roller.
[0010] Furthermore, multiple placement seats are arranged in a curved array on the outer surface of the conveyor belt, and there is a large gap between the inner wall of the mounting groove and the conveyor belt.
[0011] Furthermore, the extrusion fixing assembly includes a hydraulic cylinder, which is fixedly installed on the top of the mounting frame. The output end of the hydraulic cylinder passes through the mounting frame and is fixedly connected to a sleeve. A T-shaped lifting rod is movably connected inside the sleeve. An arc-shaped extrusion plate is fixedly connected to the bottom end of the T-shaped lifting rod. A first spring is fixedly connected between the T-shaped lifting rod and the inner wall of the sleeve.
[0012] Furthermore, the pushing assembly includes a pushing frame, a T-shaped moving rod is movably connected to one side of the pushing frame, the T-shaped moving rod is movably connected to the mounting frame, and a second spring is fixedly connected between the pushing frame and the other end of the T-shaped moving rod.
[0013] Furthermore, the linkage component includes a connecting component and a pulling component. The connecting component includes a T-shaped fixing rod, which is provided on one side of both the mounting frame and the pushing frame. A rotating rod is rotatably connected to the outer surface of the T-shaped fixing rod on the mounting frame. A driving groove is provided on one side of the rotating rod. The T-shaped fixing rod on the pushing frame is movably connected to the driving groove.
[0014] Furthermore, the pulling assembly includes a connecting plate, which is fixedly connected to the sleeve. Pulling rods are fixedly connected to both sides of the connecting plate. A through groove is provided at the top of the rotating rod, and the pulling rod is movably connected to the through groove. An I-shaped rod is movably connected inside the driving groove, and the I-shaped rod is fixedly connected to the pulling rod.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model places the dialyzer directly on the transport clamping assembly, which then transports the dialyzer to the sintering processing area. At this time, the extrusion fixing assembly can extrude the dialyzer, while the heating block, driven by the pushing assembly, the linkage assembly, and the extrusion fixing assembly, can sinter and seal the port of the fixed dialyzer with aluminum foil. The above arrangement ensures that the dialyzer will not shift when the heating block extrudes the aluminum foil, and the whole operation is also relatively convenient.
[0017] 2. After the dialyzer inside the placement seat is clamped and fixed by the arc-shaped extrusion plate, the hydraulic cylinder continues to move downward and the T-shaped lifting rod can compress the first spring and move into the sleeve. This allows the sleeve to continue to move downward and pull the push frame through the pulling component and connecting component, so that the heating block can normally contact the fixed dialyzer port.
[0018] 3. This utility model moves the push frame, so that the T-shaped moving rod can push the heating block under the pull of the second spring and make the heating block contact with the fixed dialyzer port. The second spring ensures that the dialyzer will not be damaged by the large extrusion force generated by the heating block when the heating block squeezes the aluminum foil. At the same time, when the dialyzer is not centered inside the placement seat, the heating block can still make normal port contact with the dialyzer with the assistance of the second spring.
[0019] 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
[0020] To more clearly illustrate the technical solutions of the utility model embodiments, 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 the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the external outline structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the transport clip assembly structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the extrusion fixing component structure of this utility model;
[0024] Figure 4 This is a schematic cross-sectional view of the sleeve structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the linkage component structure of this utility model;
[0026] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1. Workbench; 2. Transport clamping assembly; 201. Conveyor belt; 202. Mounting slot; 203. Rotary roller; 204. Placement seat; 205. Motor; 3. Mounting frame; 4. Extrusion fixing assembly; 401. Hydraulic cylinder; 402. Sleeve; 403. T-shaped lifting rod; 404. Arc-shaped extrusion plate; 405. First spring; 5. Pushing assembly; 501. Pushing frame; 502. T-shaped moving rod; 503. Second spring; 6. Heating block; 7. Linkage assembly; 71. Connecting assembly; 711. T-shaped fixing rod; 712. Rotating rod; 713. Drive slot; 72. Pulling assembly; 721. Connecting plate; 722. Pulling rod; 723. Through slot; 724. I-shaped rod. Detailed Implementation
[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0031] Please see Figures 1-6 As shown, this utility model is a sintering device for end face aluminum foil for processing hemodialysis machines, including a workbench 1. A transport clamping component 2 is provided on the top of the workbench 1. A mounting frame 3 is fixedly connected to the top of the workbench 1. A pressing and fixing component 4 is provided inside the mounting frame 3. Pushing components 5 are provided on both the front and back of the mounting frame. A heating block 6 is provided at one end of the pushing component 5. A linkage component 7 is provided between the pushing component 5 and the pressing and fixing component 4.
[0032] The dialyzer is transported to one side of the heating block 6 via the transport clamping assembly 2. At this time, the compression fixing assembly 4 can move downward and clamp and fix the dialyzer placed on the transport clamping assembly 2. Simultaneously, the compression fixing assembly 4 pulls the pushing assembly 5 through the linkage assembly 7, so that the pushing assembly 5 can push the heating block 6. After the compression fixing assembly 4 has completed clamping and fixing the dialyzer, the heating block 6 sinters and seals both ends of the dialyzer with aluminum foil.
[0033] The dialyzer can be transported to one side of the heating block 6 via the transport clamping assembly 2. At this time, the compression fixing assembly 4 can move downward and clamp and fix the dialyzer. Simultaneously, the compression fixing assembly 4 can push the heating block 6 through the linkage assembly 7 and the pushing assembly 5, so that the heating block 6 can push the corresponding aluminum foil to one end of the dialyzer and heat it. The above settings allow the dialyzer to be placed directly on the transport clamping assembly 2. When the aluminum foil is sintered at one end of the dialyzer, the compression fixing assembly 4 can clamp and fix the dialyzer in advance, so that the dialyzer will not be out of position when the heating block compresses the aluminum foil. At the same time, the whole operation is also relatively convenient.
[0034] In one embodiment, the transport clamping assembly 2 includes a transport belt 201. The workbench 1 has an installation groove 202 corresponding to the transport belt 201. A rotating roller 203 is rotatably connected inside the installation groove 202. The rotating roller 203 is movably connected to the transport belt 201. A placement seat 204 is fixedly connected to the outer surface of the transport belt 201. A motor 205 is fixedly installed on the back of the workbench 1. The output end of the motor 205 is fixedly connected to the rotating roller 203.
[0035] By placing the dialyzer directly on the placement seat 204, and then the motor 205 drives the conveyor belt 201 to rotate through the roller 203, the conveyor belt 201 moves the dialyzer to the sintering processing area through the placement seat 204. The placement seat 204 ensures that the dialyzer will not shake on the conveyor belt 201 when it is transporting the dialyzer, thus allowing the conveyor belt 201 to transport the dialyzer to the sintering processing area more accurately.
[0036] In one embodiment, the placement seat 204 is provided with multiple curved arrays on the outer surface of the conveyor belt 201, and there is a large gap between the inner wall of the mounting groove 202 and the conveyor belt 201.
[0037] The multiple placement seats 204 on the conveyor belt 201 allow the conveyor belt 201 to continuously transport dialyzers, while the mounting slot 202 allows the conveyor belt 201 to normally drive the placement seats 204 to rotate to the bottom of the workbench 1. At the same time, a collection box can be set at the bottom of the rear side of the workbench 1, so that when the opening of the placement seat 204 on the conveyor belt 201 is facing downwards, the dialyzer inside the placement seat 204 can directly fall into the collection box through the mounting slot 202.
[0038] In one embodiment, the extrusion fixing assembly 4 includes a hydraulic cylinder 401, which is fixedly mounted on the top of the mounting frame 3. The output end of the hydraulic cylinder 401 passes through the mounting frame 3 and is fixedly connected to a sleeve 402. A T-shaped lifting rod 403 is movably connected inside the sleeve 402. An arc-shaped extrusion plate 404 is fixedly connected to the bottom end of the T-shaped lifting rod 403. A first spring 405 is fixedly connected between the T-shaped lifting rod 403 and the inner wall of the sleeve 402.
[0039] By driving the hydraulic cylinder 401, the hydraulic cylinder 401 moves the arc-shaped extrusion plate 404 downward through the sleeve 402 and the T-shaped lifting rod 403, thereby pressurizing and fixing the dialyzer inside the placement seat 204. After the arc-shaped extrusion plate 404 has fixed the dialyzer, the hydraulic cylinder 401 can continue to move downward. At this time, the T-shaped lifting rod 403 can squeeze the first spring 405 inside and move it into the sleeve 402, thereby allowing the hydraulic cylinder 401 to continue to move downward. This setting allows the hydraulic cylinder 401 to continue to drive the pushing component 5 through the linkage component 7 after the dialyzer is fixed, so that the heating block 6 at one end of the pushing component 5 can normally contact the fixed dialyzer port. The above setting allows the two working processes of fixing and clamping and sintering to be completed with only one power source.
[0040] In one embodiment, the pushing component 5 includes a pushing frame 501, a T-shaped moving rod 502 is movably connected to one side of the pushing frame 501, the T-shaped moving rod 502 is movably connected to the mounting frame 3, and a second spring 503 is fixedly connected between the other end of the pushing frame 501 and the T-shaped moving rod 502.
[0041] By pushing the pusher 501, the pusher 501 moves the heating block 6 via the T-shaped moving rod 502, causing the heating block 6 to come into contact with the port of the dialyzer. At this time, the pusher 501 continues to move, and one end of the T-shaped moving rod 502 can pull the second spring 503, causing the distance between the rear end of the T-shaped moving rod 502 and the pusher 501 to continuously increase. With the buffer of the second spring 503, the dialyzer will not be damaged by the large extrusion force generated by the heating block 6 when the heating block 6 is squeezing the aluminum foil.
[0042] In one embodiment, the linkage component 7 includes a connecting component 71 and a pulling component 72. The connecting component 71 includes a T-shaped fixing rod 711, which is provided on one side of both the mounting frame 3 and the push frame 501. A rotating rod 712 is rotatably connected to the outer surface of the T-shaped fixing rod 711 on the mounting frame 3. A drive groove 713 is provided on one side of the rotating rod 712. The T-shaped fixing rod 711 on the push frame 501 is movably connected to the drive groove 713. The pulling component 72 includes a connecting plate 721, which is fixedly connected to the sleeve 402. Pulling rods 722 are fixedly connected to both sides of the connecting plate 721. A through groove 723 is provided at the top of the rotating rod 712. The pulling rod 722 is movably connected to the through groove 723. An I-shaped rod 724 is movably connected inside the drive groove 713. The I-shaped rod 724 is fixedly connected to the pulling rod 722.
[0043] When the sleeve 402 moves downward, the connecting plate 721 can drive the pull rod 722 to move downward together. At this time, the I-shaped rod 724 on the pull rod 722 can slide inside the drive groove 713. As the pull rod 722 continues to move downward, the pull rod 722 can drive the rotating rod 712 to rotate on the mounting frame 3 through the I-shaped rod 724 and the drive groove 713, thereby making the angle between the rotating rod 712 and the mounting frame 3 continuously smaller. At this time, the rotating rod 712 can move the push frame 501 through the drive groove 713 and the T-shaped fixing rod 711 on the push frame 501. The pusher 501 can move continuously toward the mounting frame 3. The pusher 501 pushes the heating block 6 through the T-shaped moving rod 502. In summary, when the sleeve 402 moves downward and clamps and fixes the dialyzer through the T-shaped lifting rod 403 and the arc-shaped extrusion plate 404, the sleeve 402 can also drive the pusher 501 to move together through the connecting plate 721, the pulling rod 722, the T-shaped fixing rod 711, the rotating rod 712, the driving groove 713, and the I-shaped rod 724, so that the linkage between the heating block 6 and the arc-shaped extrusion plate 404 is high.
[0044] Through the above technical solution, 1. By placing the dialyzer directly on the transport clamping assembly 2, the transport clamping assembly 2 transports the dialyzer to the sintering processing area. At this time, the extrusion fixing assembly 4 can extrude the dialyzer, and the heating block 6, driven by the pushing assembly 5, the linkage assembly 7, and the extrusion fixing assembly 4, can sinter and seal the port of the fixed dialyzer with aluminum foil. The above settings ensure that the dialyzer will not be displaced when the heating block extrudes the aluminum foil, and the whole operation is also relatively convenient; 2. After the arc-shaped extrusion plate 404 clamps and fixes the dialyzer inside the placement seat 204, the hydraulic cylinder 401 continues to move downward, allowing the T-shaped lifting rod 403 to extrude the first spring 405 and move into the sleeve 402. The sleeve 402 moves downwards, and the pusher 501 is pulled by the pull assembly 72 and the connecting assembly 71, so that the heating block 6 can be properly contacted with the fixed dialyzer port; 3. By moving the pusher 501, the T-shaped moving rod 502 can push the heating block 6 under the pull of the second spring 503, so that the heating block 6 can be contacted with the fixed dialyzer port. The second spring 503 ensures that the dialyzer will not be damaged by the large extrusion force generated by the heating block 6 when the heating block 6 squeezes the aluminum foil. At the same time, when the dialyzer inside the placement seat 204 is not centered, the heating block 6 can also be properly contacted with the port with the assistance of the second spring 503.
[0045] 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 utility model. 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.
[0046] The preferred embodiments of the utility model disclosed above are merely illustrative of the 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 the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for sintering end-face aluminum foil for processing hemodialysis machines, comprising a workbench (1), characterized in that, The top of the workbench (1) is provided with a transport clamping assembly (2), and the top of the workbench (1) is fixedly connected with a mounting frame (3). The inside of the mounting frame (3) is provided with a pressing and fixing assembly (4). The front and back of the mounting frame are provided with a pushing assembly (5). One end of the pushing assembly (5) is provided with a heating block (6). A linkage assembly (7) is provided between the pushing assembly (5) and the pressing and fixing assembly (4).
2. The end-face aluminum foil sintering device for processing hemodialysis machines according to claim 1, characterized in that, The transport clamping assembly (2) includes a transport belt (201). The workbench (1) has an installation groove (202) corresponding to the transport belt (201). A rotating roller (203) is rotatably connected inside the installation groove (202). The rotating roller (203) is movably connected to the transport belt (201). A placement seat (204) is fixedly connected to the outer surface of the transport belt (201). A motor (205) is fixedly installed on the back of the workbench (1). The output end of the motor (205) is fixedly connected to the rotating roller (203).
3. The end-face aluminum foil sintering device for processing hemodialysis machines according to claim 2, characterized in that, The placement seat (204) is arranged in a curved array on the outer surface of the conveyor belt (201), and there is a gap between the inner wall of the mounting groove (202) and the conveyor belt (201).
4. The end-face aluminum foil sintering device for processing hemodialysis machines according to claim 1, characterized in that, The extrusion fixing assembly (4) includes a hydraulic cylinder (401), which is fixedly installed on the top of the mounting frame (3). The output end of the hydraulic cylinder (401) passes through the mounting frame (3) and is fixedly connected to a sleeve (402). A T-shaped lifting rod (403) is movably connected inside the sleeve (402). An arc-shaped extrusion plate (404) is fixedly connected to the bottom end of the T-shaped lifting rod (403). A first spring (405) is fixedly connected between the T-shaped lifting rod (403) and the inner wall of the sleeve (402).
5. The end-face aluminum foil sintering device for processing hemodialysis machines according to claim 4, characterized in that, The pushing assembly (5) includes a pushing frame (501), a T-shaped moving rod (502) is movably connected to one side of the pushing frame (501), the T-shaped moving rod (502) is movably connected to the mounting frame (3), and a second spring (503) is fixedly connected between the other end of the pushing frame (501) and the T-shaped moving rod (502).
6. The end-face aluminum foil sintering device for processing hemodialysis machines according to claim 5, characterized in that, The linkage component (7) includes a connecting component (71) and a pulling component (72). The connecting component (71) includes a T-shaped fixing rod (711). The T-shaped fixing rod (711) is provided on one side of the mounting frame (3) and the push frame (501). The outer surface of the T-shaped fixing rod (711) on the mounting frame (3) is rotatably connected to a rotating rod (712). A drive groove (713) is provided on one side of the rotating rod (712). The T-shaped fixing rod (711) on the push frame (501) is movably connected to the drive groove (713).
7. The end-face aluminum foil sintering device for processing hemodialysis machines according to claim 6, characterized in that, The pulling assembly (72) includes a connecting plate (721), which is fixedly connected to the sleeve (402). Pulling rods (722) are fixedly connected to both sides of the connecting plate (721). A through groove (723) is provided at the top of the rotating rod (712). The pulling rod (722) is movably connected to the through groove (723). An I-shaped rod (724) is movably connected inside the drive groove (713). The I-shaped rod (724) is fixedly connected to the pulling rod (722).