Assembly line for dialyzer assembly

Abstract

The dialyzer assembly line comprises a rack (1), a conveying belt (2) is arranged on the rack (1), limiting clamping jaws (3) which are evenly distributed are arranged on the conveying belt (2), and a weighing mechanism (4), a blood cover assembly mechanism (5), an air tightness detection mechanism (6), a labeling mechanism (7) and a small cover installation mechanism (8) are sequentially arranged on the rack (1) in the conveying direction of the conveying belt (2). The weighing mechanism (4) is used for detecting the quality of the dialyzer and screening the dialyzer; the blood cover assembling mechanism (5) is used for installing blood covers at the two ends of the dialyzer passing through the blood cover assembling mechanism (5). The air tightness detection mechanism (6) performs internal air tightness detection through a blood cover opening and a dialysate opening of the dialyzer; according to the automatic dialyzer assembling machine, dialyzer weighing, blood cover assembling, air tightness detecting, labeling and small cover installing can be automatically carried out, and the dialyzer assembling and machining efficiency is improved. In addition, the assembling device has the advantage of being high in assembling precision.

Description

Technical Field

[0001] This invention relates to the field of dialyzer manufacturing, and more particularly to a dialyzer assembly line. Background Technology

[0002] A dialyzer is a filtration device that transfers waste products, excess water, and electrolytes from the blood into dialysate, working in the same way as a glomerulus. Existing dialyzers mainly consist of an outer shell, rubber gaskets, a sealing layer, and internal fiber bundles. The manufacturing process involves laser printing of the outer shell, insertion of the fiber bundles, heat sealing, glue injection, curing and cutting, installation of blood caps, and installation of port caps. Blood cap installation involves both ends of the dialyzer, while port cap installation involves both blood caps and the dialysate ports on both sides. This process usually requires manual removal from the production line for assembly or operation. The process of removing and refilling materials is time-consuming, affecting production efficiency, and there is also the possibility of incomplete cap fixation, thus affecting the final product quality. Summary of the Invention

[0003] The purpose of this invention is to provide a dialyzer assembly line. This invention can automatically perform dialyzer weighing, blood cap assembly, airtightness testing, labeling, and small cap installation, improving the efficiency of dialyzer assembly. Furthermore, this invention features high assembly precision.

[0004] The technical solution of this invention: A dialyzer assembly line includes a frame, a conveyor belt on the frame, and uniformly distributed limiting claws on the conveyor belt. Along the conveying direction of the conveyor belt, the frame is sequentially equipped with a weighing mechanism, a blood cap assembly mechanism, an airtightness detection mechanism, a labeling mechanism, and a small cap installation mechanism. The weighing mechanism is used to perform quality inspection and screening on the dialyzers passing through. The blood cap assembly mechanism is used to install blood caps on both ends of the dialyzers passing through. The airtightness detection mechanism performs internal airtightness detection through the blood cap opening and the dialysate opening of the dialyzer. The labeling mechanism is used to affix labels to the surface of the dialyzers passing through. The small cap installation mechanism is used to install small caps on the blood cap and dialysate opening of the dialyzers passing through.

[0005] In the dialyzer assembly line described above, the weighing mechanism includes a weighing moving frame and a transfer moving frame disposed above the frame. A waste conveyor belt is provided on one side of the conveyor belt. A reference plate is provided at the moving end of the weighing moving frame. A first lifting rod is provided on the reference plate and is longitudinally movably connected. A first vacuum suction block is provided at the lower end of the first lifting rod. A pressure sensor that is in contact with the reference plate is provided at the upper end of the first lifting rod. A second lifting rod is provided at the moving end of the transfer moving frame. A second vacuum suction block is provided at the lower end of the second lifting rod.

[0006] In the aforementioned dialyzer assembly line, the blood cap assembly mechanism includes a side frame disposed on the side of the frame, with feeding components on both sides of the side frame; a transfer tray is disposed on the side frame, with multiple dialyzer grippers on the edge of the transfer tray, and capping components are disposed on both sides of the side frame, with the capping components corresponding to the feeding components on their respective sides; a steering component facing the transfer tray is disposed on the side frame between the capping components; a feeding component is disposed on the side frame between the feeding components and the corresponding capping components; and a transfer component is disposed on the frame between the transfer tray and the conveyor belt.

[0007] In the aforementioned dialyzer assembly line, the feeding component includes a transverse guide rail mounted on a side frame, with a blood cap fixing position on the transverse guide rail; a steering plate that rotates vertically via a motor is provided between the head end of the transverse guide rail and the discharge end of the feeding component, with a steering claw at the end of the steering plate; and a feeding moving seat is provided on the side frame, with a feeding claw at the end of the feeding moving seat.

[0008] In the aforementioned dialyzer assembly line, the capping assembly includes a material rack mounted on a side frame. The material rack has a positioning port located below the dialyzer gripper claws, and the side frame below the positioning port has capping claws that are vertically driven by a motor.

[0009] In the aforementioned dialyzer assembly line, the steering assembly includes an outer shift seat mounted on a side frame, a steering seat that rotates vertically via a motor, and a steering claw that is vertically offset from the dialyzer gripper claw.

[0010] In the aforementioned dialyzer assembly line, the transfer component includes a first transfer seat mounted on a frame and a second transfer seat mounted on a side frame. The first transfer seat is provided with a transfer component that moves laterally via a motor, and the transfer component is provided with a first transfer claw that rotates vertically via the motor. The second transfer seat is provided with an intermediate component that moves laterally via a motor, and the intermediate component is provided with a second transfer claw that rotates horizontally via the motor. The first transfer claw and the second transfer claw are staggered vertically.

[0011] In the aforementioned dialyzer assembly line, the airtightness detection mechanism includes an airtightness tester. The frame is equipped with a docking air injection port corresponding to the dialyzer blood cap and dialysate port, and the docking air injection port is connected to the airtightness tester.

[0012] In the aforementioned dialyzer assembly line, the labeling mechanism includes a labeling frame disposed above the conveyor belt. The labeling frame is provided with a peeling plate, a feeding roller and a receiving roller. A pressure head driven by a motor is provided on one side of the peeling plate. The bottom surface of the pressure head is provided with an opening, and an elastic pressure plate is provided at the lower end of the opening.

[0013] In the aforementioned dialyzer assembly line, the cap mounting mechanism includes a mounting frame positioned above the machine frame. The mounting frame has a lifting port facing the conveyor belt, and a lifting clamp driven longitudinally by a motor is located above the lifting port. The mounting frame around the lifting port has positioning blocks corresponding to the positions of the blood caps at both ends of the dialyzer and the two dialysate inlets. The positioning blocks move towards the lifting port via a motor, and the positioning blocks have positioning grooves on their inner sides that communicate with the lifting port. The mounting frame has multiple cap vibrating discs, and each cap vibrating disc has a conveying channel at its end, with the outlet of the conveying channel corresponding to the top of the positioning groove.

[0014] Compared with existing technologies, the dialyzer of this invention is placed on the limiting claws of the conveyor belt, and the dialyzer, fixed by the limiting claws, moves with the conveyor belt. When it reaches the weighing mechanism, the weighing mechanism measures the mass of the dialyzer, and dialyzers that do not meet the standard are removed for screening. The blood cap assembly mechanism adjusts the posture of the dialyzer and then fixes the blood caps at both ends of the dialyzer in sequence. The airtightness detection mechanism detects leakage after injecting air through the blood cap opening and dialysate opening of the dialyzer, realizing airtightness detection. The labeling mechanism affixes a label to the surface of the dialyzer to achieve accurate traceability. The small cap installation mechanism fixes the dialyzer and simultaneously fixes the small caps on the blood cap opening and dialysate opening to achieve complete sealing. The entire process does not require manual feeding or auxiliary positioning, which greatly improves processing efficiency. At the same time, through the automated cooperation of various mechanisms, manual assembly errors are avoided, thereby ensuring the stability of dialyzer assembly and processing and product quality, and improving the overall reliability of the finished dialyzer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural schematic diagram of the weighing mechanism of the present invention; Figure 3 This is a schematic diagram of the weighing mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the reference plate portion of the present invention; Figure 5 This is a schematic diagram of the blood cap assembly mechanism of the present invention; Figure 6 This is a schematic diagram of the side frame portion of the present invention; Figure 7 This is a schematic diagram of the structure of the feeding assembly and the capping assembly of the present invention; Figure 8 This is a schematic diagram of the steering component of the present invention; Figure 9 This is a schematic diagram of the structure of the transfer component of the present invention; Figure 10 This is a partial structural schematic diagram of the airtightness detection mechanism of the present invention; Figure 11 This is a schematic diagram of the airtightness detection mechanism of the present invention; Figure 12 This is a partial structural schematic diagram of the labeling mechanism and the small cap mounting mechanism of the present invention; Figure 13 This is a schematic diagram of the labeling mechanism of the present invention; Figure 14 This is a schematic diagram of the small cover mounting mechanism of the present invention; Figure 15 This is a top view schematic diagram of the small cover mounting mechanism of the present invention.

[0016] The labels in the attached diagram are as follows: 1. Frame; 2. Conveyor belt; 3. Limiting gripper; 4. Weighing mechanism; 401. Weighing moving frame; 402. Transfer moving frame; 403. Waste conveyor belt; 404. Base plate; 405. First lifting rod; 406. First vacuum suction block; 407. Pressure sensor; 408. Second lifting rod; 409. Second vacuum suction block; 5. Blood cap assembly mechanism; 501. Side frame; 502. Feeding assembly; 503. Transfer tray; 504. Dialyzer gripper; 505. Capping assembly; 506. Steering assembly; 507. Feeding assembly; 508. Transfer assembly; 509. Transverse guide rail; 510. Blood cap fixing position; 511. Steering plate; 512. Steering gripper; 513. Feeding moving seat; 514. Feeding gripper; 515. 516. Material rack; 517. Positioning port; 518. Capping claw; 519. Outer shift seat; 520. Steering seat; 521. Steering claw; 522. First transfer seat; 523. Transfer component; 524. First transfer claw; 525. Intermediate component; 526. Second transfer claw; 6. Air tightness testing mechanism; 601. Air tightness tester; 602. Docking air injection port; 7. Labeling mechanism; 701. Labeling rack; 702. Feeding roller; 703. Receiving roller; 704. Lower pressure head; 705. Opening; 706. Elastic pressure plate; 707. Label peeling plate; 8. Small cap installation mechanism; 801. Installation frame; 802. Lifting port; 803. Lifting clamp; 804. Positioning block; 805. Positioning groove; 806. Small cap vibrating plate; 807. Conveying channel. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0018] Example: A dialyzer assembly line, as shown in the attached diagram. Figure 1As shown, the device includes a frame 1, on which multiple conveyor belts 2 are mounted. Each conveyor belt 2 is equipped with evenly distributed limiting claws 3. The density of the limiting claws varies on each conveyor belt to accommodate different assembly components. Each limiting claw consists of two symmetrically arranged claw bodies. The outer edge of the claw body fits against the inner side of the end protrusion of the dialyzer to achieve a locking effect. Simultaneously, a perforated side plate is integrally formed on the outer bottom of the claw body, allowing complete locking of the dialysate inlet of the dialyzer and preventing rollover. Weighing mechanisms are sequentially mounted on the frame 1 along the conveying direction of the conveyor belts 2. 4. Blood cap assembly mechanism; 5. Air tightness detection mechanism; 6. Labeling mechanism; 7. Small cap installation mechanism; 8. Weighing mechanism 4 is used to perform quality inspection and screening on the dialyzers passing through; Blood cap assembly mechanism 5 is used to install blood caps on both ends of the dialyzers passing through; Air tightness detection mechanism 6 performs internal air tightness detection through the blood cap opening and dialysate opening of the dialyzer; Labeling mechanism 7 is used to affix labels to the surface of the dialyzers passing through; Small cap installation mechanism 8 is used to install small caps on the blood cap and dialysate opening of the dialyzers passing through; as shown in the appendix. Figure 2 To be continued Figure 4 As shown, the weighing mechanism 4 includes a weighing moving frame 401 and a transfer moving frame 402 mounted on the frame 1. The weighing moving frame moves along the X-axis (i.e., the conveyor belt conveying direction) and the Z-axis, while the transfer moving frame moves along the Y-axis and the Z-axis. A waste conveyor belt 403, which moves in the opposite direction to the conveyor belt, is mounted on one side of the conveyor belt 2. A reference plate 404 is mounted on the moving end of the weighing moving frame 401. A first lifting rod 405, which is longitudinally movably connected, is mounted on the reference plate 404. A first vacuum suction block 40 is mounted on the lower end of the first lifting rod 405. 6. A pressure sensor 407, which is in contact with the reference plate 404, is installed at the upper end of the first lifting rod 405; a second lifting rod 408 is installed at the moving end of the transfer frame 402, and a second vacuum suction block 409 is installed at the lower end of the second lifting rod 408. The weighing frame moves, causing the first vacuum suction block to pick up the dialyzers on the conveyor belt one by one. After being lifted, the pressure change data is obtained through the squeezing of the first lifting rod and the pressure sensor, thereby obtaining the dialyzer quality. Defective dialyzers are grabbed by the second vacuum suction cup of the transfer frame and carried out by the waste conveyor belt; as shown in the attached... Figure 5 Appendix Figure 6As shown, the blood cap assembly mechanism 5 includes a side frame 501 mounted on the side of the frame 1. Feeding components 502 are mounted on both sides of the side frame 501. Each feeding component includes a vibratory feeder and a corresponding feeding channel, allowing the blood caps to be conveyed with the outer port facing upwards. A transfer tray 503 is mounted on the side frame 501. Multiple dialyzer grippers 504 are mounted on the edge of the transfer tray 503 for efficient assembly. Capping components 505 are mounted on both sides of the side frame 501 of the transfer tray 503. Each capping component 505 corresponds to a feeding component 502 on its corresponding side. A steering component 506 facing the transfer tray 503 is provided on the side frame 501 between the capping components 505. A feeding component 507 is mounted on the side frame 501 between the feeding component 502 and the corresponding capping component 505. A transfer component 508 is mounted on the frame 1 between the transfer tray 503 and the conveyor belt 2. (See attached diagram) Figure 7 As shown, the feeding assembly 507 includes a transverse guide rail 509 mounted on the side frame 501, with a blood cap fixing position 510 on the transverse guide rail 509; a steering plate 511, which rotates vertically via a motor, is mounted between the head end of the transverse guide rail 509 and the discharge end of the feeding assembly 502, and a steering claw 512 driven by a motor is installed at the end of the steering plate 511; a feeding moving seat 513, which moves towards the capping assembly, is mounted on the side frame 501, and a feeding claw 514 is mounted at the end of the feeding moving seat 513. The blood cap is fed in by the feeding assembly, and then the steering claw grabs the blood cap, rotates it 180° via the steering plate, and brings it to the blood cap fixing position on the transverse guide rail. At this point, the cap is facing downwards, and the horizontal guide rail carries the cap to the feeding moving seat. The feeding claw of the feeding moving seat grabs the cap and carries it to the capping assembly. The capping assembly 505 includes a placement rack 515 mounted on the side frame 501. The placement rack 515 has a positioning port 516 located below the dialyzer gripper 504. The side frame 501 below the positioning port 516 is equipped with a capping claw 517 driven vertically by a motor. The cap held by the feeding claw is pushed onto the positioning port of the placement rack. At this point, the cap corresponds to one of the dialyzer grippers on the upper transfer tray. The capping claw grabs the cap from below and moves upwards to press it into the lower end of the dialyzer, completing the installation at one end. (See attached...) Figure 8 As shown, the steering assembly 506 includes an outer displacement seat 518 mounted on the side frame 501. The outer displacement seat can move inward and outward via a cylinder. A steering seat 519, which rotates vertically via a motor, is mounted on the outer displacement seat 518. A steering claw 520, which is vertically offset from the dialyzer gripper 504, is mounted on the steering seat 519. After the steering claw grips the dialyzer, the outer displacement seat moves outward behind the dialyzer gripper. After the steering seat rotates 180°, the outer displacement seat moves back, and the dialyzer gripper re-grips, thus turning the dialyzer. The turned dialyzer is then carried to the capping assembly on the other side for attaching the blood cap at the other end. (See attached diagram) Figure 9As shown, the transfer assembly 508 includes a first transfer seat 521 mounted on the frame 1 and a second transfer seat 522 mounted on the side frame 501. The first transfer seat 521 is equipped with a transfer component 523 that moves laterally via a motor, and the transfer component 523 is equipped with a first transfer claw 524 that rotates vertically via the motor. The second transfer seat 522 is provided with an intermediate component 525 that moves laterally via a motor, and the intermediate component 525 is provided with a second transfer claw 526 that rotates horizontally via the motor. The first transfer claw 524 and the second transfer claw 526 are staggered vertically. The first transfer claw grabs the dialyzer from the conveyor belt, and the transfer component moves upward. Then, the first transfer claw rotates until it faces the second transfer claw. After the transfer component moves to engage with the second transfer claw, the second transfer claw grabs the dialyzer. As the first transfer claw moves away, the second transfer claw moves with the intermediate component to the dialyzer clamping position. Simultaneously, the second transfer claw rotates towards the dialyzer clamping position, and the dialyzer is gripped by the clamping claw, thus achieving transfer from the conveyor belt to the transfer tray. Two transfer components are provided, located at the feed end and discharge end of the transfer tray respectively, achieving high efficiency in both feed and discharge transfer. (See attached diagram.) Figure 10 and attached Figure 11 As shown, the airtightness testing mechanism 6 includes an airtightness meter 601. The frame 1 is equipped with four gas injection ports 602 corresponding to the dialyzer blood cap and dialysate inlet. The gas injection ports 602 are connected to the airtightness meter 601 via pipelines. The gas injection ports are moved by a motor and inserted into the dialyzer blood cap and dialysate inlet. After gas injection, the overflow airflow is detected using a direct pressure principle to achieve airtightness testing. (See attached diagram) Figure 12 and attached Figure 13 As shown, the labeling mechanism 7 includes a labeling frame 701 mounted above the conveyor belt 2. A label peeling plate 707, a feeding roller 702, and a receiving roller 703 are fixed on the labeling frame 701. A motor-driven pressing head 704 is mounted on one side of the label peeling plate 707. An opening 705 is machined on the bottom surface of the pressing head 704, and an elastic pressure plate 706 is fixed at the lower end of the opening 705. Label tape is wound on the feeding roller. After passing through the label peeling plate, the label tape is wound onto the receiving roller. The label peeling plate is a thin, transverse plate. The label tape adheres tightly to the label peeling plate, causing the label at the end of the label peeling plate to be squeezed and lifted out of the label tape. At this time, the elastic pressure plate of the pressing head moves downward, pushing the lifted label down and pushing it out of the label tape. Subsequently, through the deformation of the elastic pressure plate, it adheres to the outer wall of the circular dialyzer, ensuring that the label can adhere to the outer wall of the dialyzer. (See attached...) Figure 14 and attached Figure 15As shown, the small cap mounting mechanism 8 includes a mounting frame 801 mounted on the top of the frame 1. The mounting frame 801 has a lifting opening 802 facing the conveyor belt 2. A lifting clamp 803, driven longitudinally by a motor, is mounted above the lifting opening 802. Positioning blocks 804, corresponding to the positions of the blood caps at both ends of the dialyzer and the two dialysate inlets, are fixed on the mounting frame 801 around the lifting opening 802. The positioning blocks 804 move towards the lifting opening 802 via a motor, and each positioning block 804 has a positioning groove 805 whose inner side communicates with the lifting opening 802. The mounting frame 801 is fixed... There are four small cap vibrating plates 806, each with a conveying channel 807 at its end. The outlet of the conveying channel 807 corresponds to the top of the positioning slot 805. The dialyzer reaching the bottom of the lifting port is lifted into the lifting port by the lifting clamp. At this time, the positions of the blood caps at both ends of the dialyzer and the two dialysate ports correspond to the positioning slots. The small cap vibrating plates drive the small caps to enter the positioning slots of the positioning port along the conveying channel in the required posture. The positioning block moves to push the small caps in and fix them in the corresponding positions of the dialyzer, thus realizing the installation of the small caps. After the installation is completed, the lifting clamp puts the dialyzer back onto the conveyor belt.

[0019] Working principle: The dialyzer is first placed on the limiting claw 3 of the conveyor belt 2. After being fixed by the limiting claw 3, it moves along the conveying direction with the conveyor belt 2 and first reaches the weighing mechanism 4. The weighing moving frame 401 drives the reference plate 404 at the moving end to move, so that the first vacuum suction block 406 at the lower end of the first lifting rod 405 picks up the dialyzer on the conveyor belt. After the first lifting rod 405 is raised, the pressure sensor 407 at its upper end, which is in contact with the reference plate 404, obtains pressure change data through compression, and then determines the dialyzer quality. If the quality is not up to standard, the second vacuum suction block 409 at the lower end of the second lifting rod 408 of the transfer moving frame 402 will grab the dialyzer and transfer it to the weighing mechanism 4. The waste parts are conveyed to the waste conveyor belt 403 on one side of the conveyor belt 2 and removed by the waste conveyor belt 403; qualified dialyzers continue to move and are transferred to the dialyzer grippers 504 on the transfer tray 503 via the front transfer assembly 508. The transfer tray 503 drives them to the blood cap assembly mechanism 5. The feeding assemblies 502 on both sides of the side frame 501 convey the blood caps. The steering plate 511 between the head end of the transverse guide rail 509 and the discharge end of the feeding assembly 502 rotates under the drive of the motor. The steering claw 512 at its end grabs the blood cap and rotates it 180° before sending the blood cap to the blood cap fixing position 510 on the transverse guide rail 509. The loading moving seat 513 on the side frame 501 drives the loading end of the loading plate 512 to move the blood cap to the blood cap fixing position 510 on the transverse guide rail 509. The feed claw 514 picks up the blood cap and delivers it to the positioning port 516 of the feed rack 515 of the capping assembly 505. The capping claw 517 below the positioning port 516 moves vertically under the drive of the motor, pressing the blood cap into one end of the dialyzer held by the dialyzer gripper 504 on the edge of the transfer tray 503. Then, the outer moving seat 518 of the turning assembly 506 drives the turning seat 519 to move. The turning claw 520 on the turning seat 519, which is vertically misaligned with the dialyzer gripper 504, picks up the dialyzer. The turning seat 519 rotates 180° in the vertical plane under the drive of the motor, realizing the turning of the dialyzer. Then, the other end of the dialyzer blood cap is installed by the capping assembly 505 on the other side. After that, the dialyzer is mounted on the frame 1. Another transfer component 508 sends the dialyzer back to the conveyor belt 2; the dialyzer continues to move to the air tightness detection mechanism 6, the docking air injection port 602 on the frame 1 corresponding to the blood cap and dialysate port of the dialyzer is connected to the air tightness tester 601, the docking air injection port 602 injects air into the dialyzer, and the air tightness tester 601 detects its internal air tightness; the dialyzer with qualified air tightness moves to the labeling mechanism 7, the feeding roller 702 on the labeling frame 701 conveys the label tape, the label tape is lifted outward after passing the label peeling plate 707, the lower pressure head 704 on one side of the label peeling plate 707 moves down under the drive of the motor, and the elastic pressure plate 706 at the lower end of the bottom opening 705 of the label peeling plate 707 affixes the lifted label to the surface of the dialyzer;Finally, the dialyzer reaches the cap mounting mechanism 8. The lifting clamp 803 of the mounting frame 801 moves longitudinally under motor drive, lifting the dialyzer to the lifting port 802. Multiple cap vibrating discs 806 on the mounting frame 801 deliver the caps to the positioning slots 805 of the positioning blocks 804 surrounding the lifting port 802 via the conveying channel 807. The positioning blocks 804 move towards the lifting port 802, pressing the caps in the positioning slots 805 onto the blood cap and dialysate port of the dialyzer. After installation, the lifting clamp 803 returns the dialyzer to the conveyor belt 2, achieving fully automated assembly of the dialyzer.

[0020] The above embodiments merely illustrate implementation methods of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. Furthermore, in these embodiments, "up," "down," "left," "right," "front," and "back" represent relative positions only, not absolute positions. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A dialyzer assembly line, characterized in that: The system includes a frame (1), a conveyor belt (2) on the frame (1), and evenly distributed limiting claws (3) on the conveyor belt (2). Along the conveying direction of the conveyor belt (2), the frame (1) is provided with a weighing mechanism (4), a blood cap assembly mechanism (5), an airtightness detection mechanism (6), a labeling mechanism (7), and a small cap installation mechanism (8). The weighing mechanism (4) is used to perform quality detection and screening on the dialyzers that pass through it. The blood cap assembly mechanism (5) is used to install blood caps on both ends of the dialyzers that pass through it. The airtightness detection mechanism (6) performs internal airtightness detection through the blood cap opening and the dialysate opening of the dialyzer. The labeling mechanism (7) is used to affix labels to the surface of the dialyzers that pass through it. The small cap installation mechanism (8) is used to install small caps on the blood cap and dialysate opening of the dialyzers that pass through it.

2. The dialyzer assembly line according to claim 1, characterized in that: The weighing mechanism (4) includes a weighing moving frame (401) and a transfer moving frame (402) disposed above the frame (1). A waste conveyor belt (403) is provided on one side of the conveyor belt (2). A reference plate (404) is provided at the moving end of the weighing moving frame (401). A first lifting rod (405) is provided on the reference plate (404) and is connected longitudinally. A first vacuum suction block (406) is provided at the lower end of the first lifting rod (405). A pressure sensor (407) is provided at the upper end of the first lifting rod (405) and is attached to the reference plate (404). A second lifting rod (408) is provided at the moving end of the transfer moving frame (402). A second vacuum suction block (409) is provided at the lower end of the second lifting rod (408).

3. The dialyzer assembly line according to claim 1, characterized in that: The blood cap assembly mechanism (5) includes a side frame (501) disposed on the side of the frame (1), and feeding components (502) are provided on both sides of the side frame (501); a transfer tray (503) is provided on the side frame (501), and multiple dialyzer grippers (504) are provided on the edge of the transfer tray (503); a capping assembly (505) is provided on both sides of the side frame (501) of the transfer tray (503), and the capping assembly (505) corresponds to the feeding component (502) on the same side; a turning component (506) facing the transfer tray (503) is provided on the side frame (501) between the capping assemblies (505); a feeding component (507) is provided on the side frame (501) between the feeding component (502) and the corresponding capping assembly (505); and a transfer component (508) is provided on the frame (1) between the transfer tray (503) and the conveyor belt (2).

4. The dialyzer assembly line according to claim 3, characterized in that: The feeding assembly (507) includes a transverse guide rail (509) mounted on the side frame (501), and a blood cap fixing position (510) is provided on the transverse guide rail (509); a steering plate (511) that rotates vertically via a motor is provided between the head end of the transverse guide rail (509) and the discharge end of the feeding assembly (502), and a steering claw (512) is provided at the end of the steering plate (511); a feeding moving seat (513) is provided on the side frame (501), and a feeding claw (514) is provided at the end of the feeding moving seat (513).

5. The dialyzer assembly line according to claim 3, characterized in that: The capping assembly (505) includes a material rack (515) disposed on a side frame (501), the material rack (515) having a positioning port (516) located below the dialyzer gripper (504), and the side frame (501) below the positioning port (516) having a capping gripper (517) driven vertically by a motor.

6. The dialyzer assembly line according to claim 3, characterized in that: The steering assembly (506) includes an outer shift seat (518) disposed on the side frame (501), the outer shift seat (518) is provided with a steering seat (519) that rotates vertically via a motor, and the steering seat (519) is provided with a steering claw (520) that is vertically offset from the dialyzer gripper claw (504).

7. The dialyzer assembly line according to claim 3, characterized in that: The transfer assembly (508) includes a first transfer seat (521) disposed on the frame (1) and a second transfer seat (522) disposed on the side frame (501). The first transfer seat (521) is provided with a transfer component (523) that moves laterally by a motor, and the transfer component (523) is provided with a first transfer claw (524) that rotates vertically by a motor. The second transfer seat (522) is provided with an intermediate component (525) that moves laterally by a motor, and the intermediate component (525) is provided with a second transfer claw (526) that rotates horizontally by a motor. The first transfer claw (524) and the second transfer claw (526) are staggered vertically.

8. The dialyzer assembly line according to claim 1, characterized in that: The airtightness testing mechanism (6) includes an airtightness tester (601), and the frame (1) is provided with a docking air injection port (602) corresponding to the dialyzer blood cap and dialysate port. The docking air injection port (602) is connected to the airtightness tester (601).

9. The dialyzer assembly line according to claim 1, characterized in that: The labeling mechanism (7) includes a labeling frame (701) set above the conveyor belt (2). The labeling frame (701) is provided with a label peeling plate (707), a feeding roller (702) and a receiving roller (703). A pressure head (704) driven by a motor is provided on one side of the label peeling plate (707). An opening (705) is provided on the bottom surface of the pressure head (704). An elastic pressure plate (706) is provided at the lower end of the opening (705).

10. The dialyzer assembly line according to claim 1, characterized in that: The small cap mounting mechanism (8) includes a mounting frame (801) set above the frame (1). The mounting frame (801) is provided with a lifting port (802) facing the conveyor belt (2). A lifting clamp (803) driven longitudinally by a motor is provided above the lifting port (802). The mounting frame (801) around the lifting port (802) is provided with positioning blocks (804) corresponding to the positions of the blood caps at both ends of the dialyzer and the two dialysate ports. The positioning blocks (804) move towards the lifting port (802) by a motor. The positioning blocks (804) are provided with positioning grooves (805) whose inner sides communicate with the lifting port (802). The mounting frame (801) is provided with multiple small cap vibrating discs (806). The ends of the small cap vibrating discs (806) are provided with conveying channels (807). The outlet of the conveying channel (807) corresponds to the top of the positioning groove (805).

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