Equipment for mounting dustproof cover of dialysate filter

Abstract

The utility model discloses equipment for mounting a dustproof cover of a dialysate filter. The equipment comprises a conveying device, a membrane outer interface buckling cover device and a membrane inner interface buckling cover device, wherein the conveying device is mounted on a main frame; the membrane outer interface buckling cover device and the membrane inner interface buckling cover device are arranged on the side surface of the conveying device; the conveying device is used for conveying a filter, and the two membrane external connector cover buckling devices are symmetrically arranged on the two sides of the conveying device correspondingly; the membrane external interface cover buckling device comprises a first positioning mechanism for positioning a filter shell, a clamping mechanism for positioning a membrane external interface and a first cover buckling mechanism for buckling a dustproof cover; the two groups of in-membrane interface cover buckling devices are symmetrically arranged on the two sides of the conveying device respectively; each in-membrane interface cover buckling device comprises a second positioning mechanism used for positioning a filter shell and a second cover buckling mechanism used for buckling a dustproof cover; according to the utility model, automatic installation of the dustproof cover can be realized, and the safety of products and the high efficiency of production are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of filter assembly equipment, specifically to a device for installing a dust cover for a dialysis fluid filter. Background Technology

[0002] Hemodialysis (HD) and hemofiltration (HF) are the primary treatment methods for end-stage renal failure patients with uremia and acute or chronic renal failure. In both hemodialysis and hemofiltration, a blood pump introduces blood into the blood circuit side of the dialyzer, while simultaneously introducing dialysate into the dialysate circuit side. Small and medium-sized molecules in the dialysate and blood exchange substances through a semi-permeable membrane within the dialyzer, relying on their concentration gradient, thereby purifying the blood. The dialysate filter removes impurities such as microorganisms, cells, and proteins from the dialysate. It is primarily used in dialysis treatment to filter impurities and bacteria from the dialysate, ensuring the safety and effectiveness of the dialysis therapy.

[0003] The production process of the dialysate filter is mainly as follows: First, sealing rings are installed at both ends of a cylindrical filter housing by fastening. Then, the filter membrane bundle is placed inside the housing, and the open end of the sealing ring is sealed with aluminum foil. Next, a glue injection machine injects glue into the inside of the housing through the glue injection port of the sealing ring. Then, the glue-injected housing is centrifuged, dried, and cut. After that, the end caps are assembled at both ends of the filter housing. Finally, testing and sterilization are carried out. After passing the testing and sterilization, dust covers need to be fastened to the liquid inlet and outlet of the end caps to seal them and prevent external contaminants from entering the inside of the housing. However, in the existing technology, this cap fastening process is mainly completed manually with simple jigs, which is inefficient and poses a risk of secondary contamination of the product. Therefore, the existing dust cover assembly method not only cannot guarantee efficiency and product quality, but also cannot be matched with modern production lines, which greatly restricts the development and progress of the industry. Therefore, it is urgent to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a device for installing dust covers on dialysis fluid filters, which enables automatic installation of the dust covers, ensuring product safety and high production efficiency.

[0005] The specific content is as follows: A device for installing dust covers on dialysis fluid filters, including a conveying device mounted on a main frame, an external membrane interface cover device and an internal membrane interface cover device disposed on the side of the conveying device;

[0006] The conveying device is used to convey the filter and includes a conveying chain and supports mounted on the conveying chain;

[0007] The number of membrane interface fastening devices is two sets, which are symmetrically arranged on both sides of the conveying device. The membrane interface fastening device includes a first positioning mechanism for positioning the filter housing, a clamping mechanism for positioning the membrane interface, and a first fastening mechanism for fastening the dust cover. The first fastening mechanism includes a platform, a first driving mechanism for driving the platform to move, and a gripper located above the platform. The gripper is used to clamp the dust cover located on the platform. The first driving mechanism drives the platform to move so as to fasten the dust cover on the platform into the membrane interface of the corresponding filter.

[0008] The number of membrane inlet cover fastening devices is two sets, which are symmetrically arranged on both sides of the conveying device. The membrane inlet cover fastening device includes a second positioning mechanism for positioning the filter housing and a second fastening mechanism for fastening the dust cover. The second fastening mechanism includes a pressing block, a seat body, and a second driving mechanism for driving the seat body to move. The seat body is provided with a positioning groove for positioning the dust cover. The pressing block is used to press the dust cover tightly on the positioning groove. The second driving mechanism drives the seat body to move so as to fasten the dust cover on the seat body into the membrane inlet of the corresponding filter.

[0009] In a specific embodiment of this utility model, the first positioning mechanism includes a U-shaped lifting frame, a lifting cylinder, a first lifting seat, and a first upper pressure seat. The lifting cylinder is vertically arranged and connected to the vertically arranged U-shaped lifting frame. The lifting cylinder drives the U-shaped lifting frame to move vertically. The conveying device passes through the U-shaped space of the U-shaped lifting frame. The first lifting seat and the first upper pressure seat are respectively installed on the U-shaped lifting frame and the main frame. The lifting cylinder drives the first lifting seat to move through the U-shaped lifting frame, so as to lift and position the filter at the corresponding position on the conveying device on the first upper pressure seat through the first lifting seat.

[0010] In a specific embodiment of this utility model, the two sides of the U-shaped lifting frame are respectively mounted on the transition frame by vertically arranged guide rail assemblies. The transition frame is fixed on the conveying device. The two top ends of the U-shaped lifting frame are each fixed with a first lifting seat. Each first lifting seat is correspondingly provided with a first upper pressure seat fixed to the main frame. Both the first lifting seat and the first upper pressure seat are provided with arc grooves that match the outer contour of the filter housing.

[0011] In a specific embodiment of this utility model, the clamping mechanism is in the form of two sets and is symmetrically arranged on both sides of the conveying device. The clamping mechanism includes a connecting seat fixed on the main frame and a gripper cylinder horizontally installed on the connecting seat. An interface clamping block is installed on each of the two driving claws of the gripper cylinder. Both interface clamping blocks are provided with arc-shaped clamping grooves facing each other. The clamping grooves match the outer contour of the filter membrane external interface.

[0012] In a specific embodiment of this utility model, the first driving mechanism includes a vertically mounted vertical clamping cylinder on a fixed base. A lifting seat is connected to the fixed base via a vertically arranged guide rail assembly. The vertical clamping cylinder drives the lifting seat to move vertically up and down. A platform is mounted on the top of the lifting seat. The upper surface of the platform is provided with a horizontal work surface for supporting a dust cover. A finger cylinder is also fixed on the platform. The gripper is horizontally mounted on the finger cylinder. The gripper includes a left gripper and a right gripper respectively mounted on two driving claw bodies of the finger cylinder. A horizontal stop bar is provided on the left gripper, and the stop bar is slidably fitted in a groove provided on the right gripper.

[0013] In a specific embodiment of this utility model, the membrane interface cover device further includes a first vibrating plate and a first feeding bin for feeding material into the first vibrating plate. The first vibrating plate is provided with a first conveying channel for outputting dust covers. The outlet of the first conveying channel corresponds to the working surface of the platform. The dust covers enter the working surface of the platform sequentially from the outlet of the first conveying channel, and the opening end of the dust covers faces vertically upward. The side of the platform is provided with a vertical partition plate located between the platform and the first conveying channel. The top of the partition plate is provided with an inclined surface.

[0014] In one specific embodiment of this utility model, the number of the second positioning mechanisms is two sets, which are symmetrically arranged on both sides of the conveying device. The second positioning mechanism includes a back plate fixed on the conveying device, a lifting cylinder vertically fixed on the back plate, a sliding frame vertically slidably mounted on the back plate via a guide rail assembly, a second lifting seat mounted on the top of the sliding frame, and a second upper pressure seat fixed on the main frame. Each second lifting seat is provided with a corresponding second upper pressure seat. Both the second lifting seat and the second upper pressure seat are provided with arc grooves that match the outer contour of the filter housing. The lifting cylinder drives the sliding frame to slide vertically so as to lift and position the filter at the corresponding position on the conveying device onto the second upper pressure seat via the second lifting seat.

[0015] In a specific embodiment of this utility model, the second driving mechanism includes a fixed frame fixed on the main frame and a slide table pressing cylinder horizontally installed on the top of the fixed frame. The seat is installed on the driving component of the slide table pressing cylinder, and a vertically downward pressing cylinder is installed on the seat. The pressing cylinder is connected to the pressing block. The pressing cylinder drives the pressing block to move down so as to position and press the dust cover in the positioning groove through the pressing block.

[0016] In a specific embodiment of this utility model, the membrane interface cover device further includes a second vibrating plate and a second feeding bin for feeding material into the second vibrating plate. The second vibrating plate is provided with a second conveying channel for outputting dust covers. The outlet of the second conveying channel corresponds to the positioning groove. The dust covers enter the positioning groove sequentially from the outlet of the second conveying channel, and the opening end of the dust covers faces the conveying device horizontally. The side of the base is provided with a vertical dividing plate located between the base and the second conveying channel. The end of the dividing plate near the positioning groove is provided with a beveled surface.

[0017] In a specific embodiment of this utility model, the positioning groove is open on three sides, with the opening surfaces being two adjacent side surfaces and the top surface, respectively. The two adjacent side opening surfaces correspond to the discharge port of the second conveying channel and the conveying device, respectively. The top surface of the opening faces the pressing block, and the bottom of the positioning groove slopes downward in a direction away from the discharge port of the second conveying channel. The pressing surface of the pressing block is an arc shape that matches the circumferential contour of the dust cover.

[0018] The beneficial effects of this utility model are:

[0019] This invention relates to a device for installing dust covers on dialysis fluid filters. First, a first positioning mechanism and a clamping mechanism position and clamp the filter. A first capping mechanism positions and clamps the dust cover, delivered by a vibratory feeder, accurately pressing it onto the outer membrane interface of the filter, with both outer membrane interfaces simultaneously capped. Second, a second positioning mechanism positions and clamps the filter. A second capping mechanism positions and clamps the dust cover, delivered by a vibratory feeder, accurately pressing it onto the inner membrane interface of the filter, with both inner membrane interfaces simultaneously capped. Therefore, this invention enables mechanized assembly of filter dust covers, reducing labor costs, ensuring product hygiene standards, and effectively improving filter production efficiency. Furthermore, by sequentially setting two capping stations on both sides of the conveying device, the capping process for both the inner and outer membrane interfaces can be completed in a single conveying operation, eliminating the need for multiple product transfers, resulting in fewer handling operations, higher efficiency, and lower costs. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a device for installing a dust cover for a dialysis fluid filter according to this embodiment;

[0021] Figure 2 A schematic diagram showing the positional relationship between the membrane outer interface capping device and the conveying device;

[0022] Figure 3 A three-dimensional structural diagram of the first positioning mechanism and the clamping mechanism;

[0023] Figure 4 This is a three-dimensional structural diagram of the first cover-fastening mechanism;

[0024] Figure 5 Schematic diagram showing the positional relationship between the first cover-fastening mechanism and the first material conveying channel;

[0025] Figure 6 A schematic diagram showing the positional relationship between the membrane inlet capping device and the conveying device;

[0026] Figure 7 This is a three-dimensional structural diagram of the second positioning mechanism;

[0027] Figure 8 This is a three-dimensional structural diagram of the second cover mechanism;

[0028] Figure 9 This is a schematic diagram showing the positional relationship between the second cover-fastening mechanism and the second material conveying channel.

[0029] Explanation of the labels in the diagram:

[0030] 100. Main frame; 200. Conveying device; 201. Main frame; 202. Conveying chain; 203. Support; 310. First positioning mechanism; 311. Transition frame; 312. Lifting cylinder; 313. U-shaped lifting frame; 314. First lifting seat; 315. First upper pressing seat; 320. Clamping mechanism; 321. Connecting seat; 322. Grip cylinder; 323. Interface clamping block; 330. First cover fastening mechanism; 331. Fixed seat; 332. Vertical clamping cylinder; 333. Lifting seat; 334. Platform; 3341. Workbench; 335. Finger cylinder; 336. Grip; 3361. Left clamp; 3362. Right clamp; 337. Stop 338. Material separator plate; 340. First feeding bin; 350. First vibratory feeder; 351. First conveying channel; 410. Second positioning mechanism; 411. Back plate; 412. Lifting cylinder; 413. Sliding frame; 414. Second lifting seat; 415. Second upper pressure seat; 420. Second cover fastening mechanism; 421. Fixing frame; 422. Slide table fastening cylinder; 423. Seat body; 424. Positioning groove; 425. Lowering cylinder; 426. Pressing block; 427. Material distribution plate; 430. Second vibratory feeder; 431. Second conveying channel; 440. Second feeding bin; 500. Filter; 501. Inner membrane interface; 502. Outer membrane interface; 600. Dust cover. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0032] Example, refer to Figures 1 to 9As shown, this utility model provides a device for installing dust covers on dialysis fluid filters, including a conveying device 200 mounted on a main frame 100, an external membrane interface cover device and an internal membrane interface cover device disposed on the side of the conveying device 200; to facilitate the display of the internal structure, only a portion of the main frame 100 is shown in the figure of this embodiment.

[0033] The conveying device 200 is used to convey the filter 500 and includes a conveying chain 202 and supports 203 installed on the conveying chain 202. The conveying chain 202 is horizontally installed inside the main frame 201, which is installed on the main frame 100. Multiple sets of supports 203 are installed at equal intervals on the conveying chain 202, with each set of supports 203 containing at least two supports. The re-inspected and qualified filter 500 is placed on the support 203 of the conveying chain 202 at a preset position by a robot arm, with the membrane interface 502 of the filter 500 facing vertically downward. The rotating shaft at one end of the conveying chain 202 is connected to a motor through a synchronous belt, chain, etc. The motor drives the conveying chain 202 to rotate, thereby realizing the horizontal conveying of the filter 500.

[0034] The number of membrane interface fastening devices is two sets, which are symmetrically arranged on both sides of the conveying device 200. The membrane interface fastening device includes a first positioning mechanism 310 for positioning the filter 500 housing, a clamping mechanism 320 for positioning the membrane interface 502, and a first fastening mechanism 330 for fastening the dust cover 600. The first fastening mechanism 330 includes a platform 334, a first driving mechanism for driving the platform 334 to move, and a gripper 336 located above the platform 334. The gripper 336 is used to clamp the dust cover 600 located on the platform 334. The first driving mechanism drives the platform 334 to move so as to fasten the dust cover 600 on the platform 334 into the corresponding membrane interface 502 of the filter 500.

[0035] The number of membrane interface fastening devices is two sets, which are symmetrically arranged on both sides of the conveying device 200. The membrane interface fastening device includes a second positioning mechanism 410 for positioning the filter 500 housing and a second fastening mechanism 420 for fastening the dust cover 600. The second fastening mechanism 420 includes a pressing block 426, a seat 423 and a second driving mechanism for moving the seat 423. The seat 423 is provided with a positioning groove 424 for positioning the dust cover 600. The pressing block 426 is used to press the dust cover 600 into the positioning groove 424. The second driving mechanism drives the seat 423 to move so as to fasten the dust cover 600 on the seat 423 into the corresponding membrane interface 501 of the filter 500.

[0036] This invention first positions and clamps the filter 500 using a first positioning mechanism 310 and a clamping mechanism 320. A first capping mechanism 330 positions and clamps the dust cover 600, delivered by the vibratory feeder, accurately pressing it onto the membrane interface 502 of the filter 500, with both membrane interfaces 502 simultaneously capping. Then, a second positioning mechanism 410 positions and clamps the filter 500, and a second capping mechanism 420 positions and clamps the dust cover 600, delivered by the vibratory feeder, accurately pressing it onto the filter 500. On the membrane inner interface 501 of 0, and both membrane inner interfaces 501 complete the capping action simultaneously; therefore, this utility model can realize the mechanized assembly of the dust cover 600 of the filter 500, reduce the labor cost of enterprises, ensure the hygiene quality standards of products, effectively improve the production efficiency of the filter 500, and by setting two capping stations on both sides of the conveying device 200 in sequence, the capping process of the membrane inner interface 501 and the membrane outer interface 502 can be completed in one conveying process, without the need for multiple product transfers, resulting in fewer handling times, high efficiency and low cost.

[0037] In one specific embodiment, the first positioning mechanism 310 includes a U-shaped lifting frame 313, a lifting cylinder 312, a first lifting seat 314, and a first upper pressing seat 315. The lifting cylinder 312 is vertically arranged and connected to the vertically arranged U-shaped lifting frame 313. The lifting cylinder 312 drives the U-shaped lifting frame 313 to move vertically up and down. The conveying device 200 passes through the U-shaped space of the U-shaped lifting frame 313. The two sides of the U-shaped lifting frame 313 are respectively mounted on the transition frame 311 through vertically arranged guide rail assemblies. In this embodiment, all guide rail assemblies are combinations of guide rails and sliders, which are existing technologies and will not be described in detail here. The transition frame 311 is fixed on the conveying device 200. The two top ends of the U-shaped lifting frame 313 are fixed with the first lifting seat 314. Each first lifting seat 314 is provided with a first upper pressure seat 315 fixed to the main frame 100. The first lifting seat 314 and the first upper pressure seat 315 are provided with arc grooves that match the outer contour of the filter 500 housing. The lifting cylinder 312 drives the first lifting seat 314 to move through the U-shaped lifting frame 313, so as to lift the filter 500 at the corresponding position on the conveying device 200 and position it on the first upper pressure seat 315 through the first lifting seat 314.

[0038] When the first positioning mechanism 310 is working, when the filter 500 on the conveyor chain 202 reaches directly above the first lifting seat 314, the lifting cylinder 312 drives the first lifting seat 314 to move upward through the U-shaped lifting frame 313, thereby lifting the filter 500 directly above the first lifting seat 314 and completely separating it from the conveyor chain 202, and gradually positioning the filter 500 between the first lifting seat 314 and the first upper pressure seat 315. However, the filter 500 is not completely clamped, and there is a pre-set gap to ensure that the filter 500 can rotate.

[0039] In one specific embodiment, there are two sets of clamping mechanisms 320, which are symmetrically arranged on both sides of the conveying device 200. Each clamping mechanism 320 includes a connecting seat 321 fixed on the main frame 100 and a gripper cylinder 322 horizontally mounted on the connecting seat 321. Each of the two driving claws of the gripper cylinder 322 is equipped with an interface clamping block 323. The interface clamping block 323 faces the filter 500 on the conveying chain 202. Each of the two interface clamping blocks 323 is provided with an arc-shaped clamping groove facing each other. The clamping groove matches the outer contour of the membrane interface 502 of the filter 500. After the first positioning mechanism 310 positions the filter 500 in the set position, the gripper cylinders 322 located at both ends of the filter 500 clamp the corresponding membrane interface 502 of the filter 500 through the interface clamping block 323. Since the first positioning mechanism 310 does not completely clamp the filter 500 and the clamping groove of the interface clamping block 323 is arc-shaped, the interface clamping block 323 can correct the slight positional deviation of the filter 500 in its length direction during the clamping process of the membrane interface 502, so as to ensure the accuracy of subsequent capping.

[0040] In one specific embodiment, the first driving mechanism includes a vertically clamping cylinder 332 vertically mounted on a fixed base 331. The fixed base 331 is mounted on the main frame 100. A lifting seat 333 is connected to the fixed base 331 via a vertically arranged guide rail assembly. The vertically clamping cylinder 332 drives the lifting seat 333 to move vertically up and down. A platform 334 is mounted on top of the lifting seat 333. The upper surface of the platform 334 is provided with a horizontal work surface 3341 for supporting the dust cover 600. A finger cylinder 335 is also fixed on the platform 334. A gripper 336 is horizontally mounted on the finger cylinder 335. The gripper 336 includes a left gripper 3361 respectively mounted on the two driving claw bodies of the finger cylinder 335. The left clamp 3361 is provided with a horizontal stop bar 337, which is slidably installed in a groove provided on the right clamp 3362. When the clamp 336 is fully open, the stop bar 337 is still connected between the left clamp 3361 and the right clamp 3362. When a dust cover 600 enters the worktable 3341 of the platform 334 from the first conveying channel 351 and is located between the left clamp 3361 and the right clamp 3362, the forward direction of the dust cover 600 is blocked by the stop bar 337. Therefore, the second dust cover 600 cannot enter the worktable 3341 of the platform 334 from the first conveying channel 351. Thus, the stop bar 337 can be horizontally positioned to enter the dust cover 600 on the worktable 3341.

[0041] In one specific embodiment, the membrane interface capping device further includes a first vibratory feeder 350 and a first feeding hopper 340 for feeding material into the first vibratory feeder 350. The dust cover 600 is transported to the corresponding workstation via the first vibratory feeder 350. The number of dust covers 600 in the first vibratory feeder 350 is sensed by a proximity switch. When the number is insufficient, dust covers 600 can be added to the first vibratory feeder 350 via the first feeding hopper 340. Normally, manual addition of dust covers 600 to the first feeding hopper 340 is sufficient. The hopper can store a large amount of dust covers. The dust cover 600 greatly reduces the frequency of manual feeding. The first vibrating plate 350 is provided with a first conveying channel 351 for outputting the dust cover 600. The outlet of the first conveying channel 351 corresponds to the working surface on the platform 334. The dust cover 600 enters the working surface of the platform 334 sequentially from the outlet of the first conveying channel 351, and the opening end of the dust cover 600 faces vertically upward. The side of the platform 334 is provided with a vertical partition plate 338 located between the platform 334 and the first conveying channel 351. The top of the partition plate 338 is provided with an inclined surface.

[0042] When the first capping mechanism 330 is working, after the membrane interface 502 of the filter 500 to be capped is clamped by the clamping mechanism 320, and the first vibrating plate 350 transports the dust cover 600 to the worktable surface 3341 of the platform 334, the finger cylinder 335 drives the gripper 336 to close to clamp the dust cover 600. At this time, the open end of the dust cover 600 is vertically upward and vertically corresponds to the membrane interface 502 of the clamped filter 500. Finally, the vertical pressing cylinder 332 drives the platform 334 to move upward as a whole to press the dust cover 600 clamped by the gripper 336 on the platform 334 onto the membrane interface 502 of the corresponding filter 500. During this process, the dust cover 600 at the outlet of the first conveying channel 351 is blocked by the baffle plate 338 with the inclined surface.

[0043] In one specific embodiment, there are two sets of the second positioning mechanism 410, which are symmetrically arranged on both sides of the conveying device 200. The second positioning mechanism 410 includes a back plate 411 fixed on the conveying device 200, a lifting cylinder 412 vertically fixed on the back plate 411, a sliding frame 413 vertically slidably mounted on the back plate 411 via a guide rail assembly, a second lifting seat 414 mounted on the top of the sliding frame 413, and a second upper pressure seat 415 fixed on the main frame 100. Each second lifting seat 414 is correspondingly provided with a second upper pressure seat 415. Both the second lifting seat 414 and the second upper pressure seat 415 are provided with arc grooves that match the outer contour of the filter 500 housing. The lifting cylinder 412 drives the sliding frame 413 to slide vertically upward, so as to lift and clamp the filter 500 at the corresponding position on the conveying device 200 onto the second upper pressure seat 415 through the second lifting seat 414.

[0044] In one specific embodiment, the second driving mechanism includes a fixed frame 421 fixed on the main frame 100 and a sliding table clamping cylinder 422 horizontally mounted on the top of the fixed frame 421. The seat 423 is mounted on the driving component of the sliding table clamping cylinder 422, and a vertically downward pressing cylinder 425 is mounted on the seat 423. The pressing cylinder 425 is connected to the pressing block 426. The pressing cylinder 425 drives the pressing block 426 to move downward, so as to position and press the dust cover 600 in the positioning groove 424 through the pressing block 426. The positioning groove 424 is open on three sides, and the opening surfaces are two adjacent side surfaces and the top surface, respectively. The two adjacent side opening surfaces correspond to the second conveying channel 43. The discharge port and conveying device 200 of the 1 have their top surfaces facing the pressure block 426. The bottom of the positioning groove 424 is inclined downward away from the discharge port of the second conveying channel 431. After the dust cover 600 comes out of the second conveying channel 431, it can automatically roll into the positioning groove 424 under the action of the bottom inclined surface of the positioning groove 424. The side of the positioning groove 424 performs preliminary positioning of the dust cover 600. The pressing surface of the pressure block 426 is an arc shape that matches the circumferential contour of the dust cover 600, and the bottom of the positioning groove 424 is an irregular surface that matches the side projection contour of the dust cover 600, so that the opening end of the dust cover 600 can remain horizontal after entering the positioning groove 424.

[0045] The membrane interface capping device further includes a second vibratory feeder 430 and a second feeding hopper 440 for feeding material into the second vibratory feeder 430. The dust cover 600 is transported to the corresponding workstation via the second vibratory feeder 430. The quantity of dust covers 600 in the second vibratory feeder 430 is sensed by a proximity switch. When the quantity is insufficient, dust covers 600 can be added to the second vibratory feeder 430 via the second feeding hopper 440. Normally, manual addition of dust covers 600 to the second feeding hopper 440 is sufficient. The hopper can store a large number of dust covers 600, greatly reducing the cost of dust collection. The frequency of manual feeding is reduced. The second vibrating plate 430 is provided with a second conveying channel 431 for outputting dust cover 600. The outlet of the second conveying channel 431 corresponds to the positioning groove 424. The dust cover 600 enters the positioning groove 424 in an orderly manner from the outlet of the second conveying channel 431, and the opening end of the dust cover 600 is horizontally facing the conveying device 200. The side of the seat 423 is provided with a vertical dividing plate 427 located between the seat 423 and the second conveying channel 431. The end of the dividing plate 427 near the positioning groove 424 is provided with a beveled surface.

[0046] When the second capping mechanism 420 is working, after the filter 500 to be capped is clamped by the second positioning mechanism 410, and the second vibrating plate 430 conveys the dust cover 600 to the positioning groove 424 of the seat 423, the pressing cylinder 425 drives the pressing block 426 to move down, so as to position and press the dust cover 600 in the positioning groove 424 through the pressing block 426. At this time, the open end of the dust cover 600 is horizontally aligned with the membrane interface 501 of the clamped filter 500. Finally, the sliding table pressing cylinder 422 drives the seat 423 to move horizontally towards the filter 500, so as to press the dust cover 600 clamped in the positioning groove 424 onto the corresponding membrane interface 501 of the filter 500. During this process, the dust cover 600 at the outlet of the second conveying channel 431 is blocked by the material distribution plate 427 with the inclined surface.

[0047] When using this utility model:

[0048] First, the re-inspected and qualified filter 500 is placed on the support 203 of the conveyor chain 202 by the robot arm at the preset position, with the membrane external interface 502 of the filter 500 facing vertically downward. The filter 500 is then transported to the station of the membrane external interface capping device by the conveyor chain 202, that is, the filter 500 on the conveyor chain 202 reaches directly above the first lifting seat 314.

[0049] Secondly, the membrane interface capping device operates, that is, the lifting cylinder 312 drives the first lifting seat 314 to move upward through the U-shaped lifting frame 313, thereby lifting the filter 500 directly above the first lifting seat 314 and completely separating it from the conveyor chain 202, and gradually positioning the filter 500 between the first lifting seat 314 and the first upper pressure seat 315. After the first lifting seat 314 and the first upper pressure seat 315 have completed positioning the filter 500, the gripper cylinders 322 located at both ends of the filter 500 clamp the membrane interface 502 at the corresponding end of the filter 500 through the interface clamping block 323. Since the first positioning mechanism 310 does not completely clamp the filter 500 and the clamping groove of the interface clamping block 323 is arc-shaped, the interface clamping block 323 can correct the slight positional deviation of the filter 500 in its length direction during the clamping process of the membrane interface 502, ensuring the accuracy of subsequent capping.

[0050] Next, the first capping mechanism 330 operates, and the first vibratory plate 350 transports the dust cover 600 to the worktable 3341 of the platform 334. The finger cylinder 335 drives the gripper 336 to close and clamp the dust cover 600. At this time, the open end of the dust cover 600 is vertically upward and vertically corresponds to the membrane external interface 502 of the clamped filter 500. Then, the vertical clamping cylinder 332 drives the platform 334 to move upward as a whole, so as to press the dust cover 600 clamped by the gripper 336 on the platform 334 onto the membrane external interface 502 of the corresponding filter 500. After the capping is completed, the filter 500 is put back onto the conveyor chain 202 and transported to the assembly station of the membrane internal interface capping device.

[0051] Finally, the membrane interface capping device operates. The lifting cylinder 412 drives the sliding frame 413 to slide vertically upward, so that the filter 500 at the corresponding position on the conveying device 200 is lifted and clamped onto the second upper pressure seat 415 via the second lifting seat 414. After the filter 500 to be capped is clamped by the second positioning mechanism 410, and the second vibrating plate 430 conveys the dust cover 600 into the positioning groove 424 of the seat body 423, the pressing cylinder 425 drives the pressure block 426 to move downward, so that the dust cover 600 in the positioning groove 424 is positioned and pressed by the pressure block 426. At this point, the open end of the dust cover 600 is horizontally aligned with the membrane interface 501 of the clamped filter 500. Then, the slide table clamping cylinder 422 drives the base 423 to move horizontally towards the filter 500, so as to clamp the dust cover 600 clamped in the positioning groove 424 onto the membrane interface 501 of the filter 500. During this process, the dust cover 600 at the outlet of the second conveying channel 431 is blocked by the material distribution plate 427 with the inclined surface. At this point, the dust cover 600 is assembled and the filter 500 is conveyed to the end of the conveyor chain 202 and transferred to the next process by the robot.

[0052] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A device for installing a dust cover on a dialysis fluid filter, characterized in that, It includes a conveying device that is mounted on the main frame, an outer membrane interface cover device and an inner membrane interface cover device located on the side of the conveying device; The conveying device is used to convey the filter and includes a conveying chain and supports mounted on the conveying chain; The number of membrane interface fastening devices is two sets, which are symmetrically arranged on both sides of the conveying device. The membrane interface fastening device includes a first positioning mechanism for positioning the filter housing, a clamping mechanism for positioning the membrane interface, and a first fastening mechanism for fastening the dust cover. The first fastening mechanism includes a platform, a first driving mechanism for driving the platform to move, and a gripper located above the platform. The gripper is used to clamp the dust cover located on the platform. The first driving mechanism drives the platform to move so as to fasten the dust cover on the platform into the membrane interface of the corresponding filter. The number of membrane inlet cover fastening devices is two sets, which are symmetrically arranged on both sides of the conveying device. The membrane inlet cover fastening device includes a second positioning mechanism for positioning the filter housing and a second fastening mechanism for fastening the dust cover. The second fastening mechanism includes a pressing block, a seat body, and a second driving mechanism for driving the seat body to move. The seat body is provided with a positioning groove for positioning the dust cover. The pressing block is used to press the dust cover tightly on the positioning groove. The second driving mechanism drives the seat body to move so as to fasten the dust cover on the seat body into the membrane inlet of the corresponding filter.

2. The device for installing a dust cover for a dialysis fluid filter as described in claim 1, characterized in that, The first positioning mechanism includes a U-shaped lifting frame, a lifting cylinder, a first lifting seat, and a first upper pressure seat. The lifting cylinder is vertically arranged and connected to the vertically arranged U-shaped lifting frame. The lifting cylinder drives the U-shaped lifting frame to move vertically. The conveying device passes through the U-shaped space of the U-shaped lifting frame. The first lifting seat and the first upper pressure seat are respectively installed on the U-shaped lifting frame and the main frame. The lifting cylinder drives the first lifting seat to move through the U-shaped lifting frame, so as to lift and position the filter at the corresponding position on the conveying device on the first upper pressure seat through the first lifting seat.

3. The device for installing a dust cover for a dialysis fluid filter as described in claim 2, characterized in that, The two sides of the U-shaped lifting frame are respectively mounted on the transition frame via vertically arranged guide rail assemblies. The transition frame is fixed on the conveying device. The two top ends of the U-shaped lifting frame are each fixed with a first lifting seat. Each first lifting seat is correspondingly provided with a first upper pressure seat fixed to the main frame. Both the first lifting seat and the first upper pressure seat are provided with arc grooves that match the outer contour of the filter housing.

4. The device for installing a dust cover for a dialysis fluid filter as described in claim 1, characterized in that, The clamping mechanism consists of two sets, which are symmetrically arranged on both sides of the conveying device. The clamping mechanism includes a connecting seat fixed on the main frame and a gripper cylinder horizontally installed on the connecting seat. Each of the two driving claws of the gripper cylinder is equipped with an interface clamping block. Each of the two interface clamping blocks is provided with an arc-shaped clamping groove facing each other. The clamping groove matches the outer contour of the filter membrane external interface.

5. The device for installing a dust cover for a dialysis fluid filter as described in claim 1, characterized in that, The first driving mechanism includes a vertically mounted vertical clamping cylinder on a fixed base. A lifting seat is connected to the fixed base via a vertically arranged guide rail assembly. The vertical clamping cylinder drives the lifting seat to move vertically up and down. A platform is mounted on top of the lifting seat. The upper surface of the platform has a horizontal work surface for supporting a dust cover. A finger cylinder is also fixed on the platform. A gripper is horizontally mounted on the finger cylinder. The gripper includes a left gripper and a right gripper respectively mounted on two driving claw bodies of the finger cylinder. The left gripper has a horizontal stop bar, which is slidably fitted into a groove on the right gripper.

6. The device for installing a dust cover for a dialysis fluid filter as described in claim 5, characterized in that, The membrane interface capping device further includes a first vibrating plate and a first feeding bin for feeding material into the first vibrating plate. The first vibrating plate is provided with a first conveying channel for outputting dust covers. The outlet of the first conveying channel corresponds to the working surface of the platform. The dust covers enter the working surface of the platform sequentially from the outlet of the first conveying channel, and the opening end of the dust covers faces vertically upward. The side of the platform is provided with a vertical partition plate located between the platform and the first conveying channel. The top of the partition plate is provided with an inclined surface.

7. The device for installing a dust cover for a dialysis fluid filter as described in claim 1, characterized in that, The second positioning mechanism consists of two sets, symmetrically arranged on both sides of the conveying device. Each second positioning mechanism includes a back plate fixed to the conveying device, a lifting cylinder vertically fixed to the back plate, a sliding frame vertically slidably mounted on the back plate via a guide rail assembly, a second lifting seat mounted on the top of the sliding frame, and a second upper pressure seat fixed to the main frame. Each second lifting seat corresponds to a second upper pressure seat. Both the second lifting seat and the second upper pressure seat are provided with arc grooves that match the outer contour of the filter housing. The lifting cylinder drives the sliding frame to slide vertically, thereby lifting and positioning the filter at the corresponding position on the conveying device onto the second upper pressure seat via the second lifting seat.

8. The device for installing a dust cover for a dialysis fluid filter as described in claim 1, characterized in that, The second drive mechanism includes a fixed frame fixed on the main frame and a slide table clamping cylinder horizontally mounted on the top of the fixed frame. The base is mounted on the drive component of the slide table clamping cylinder, and a vertically downward pressing cylinder is mounted on the base. The pressing cylinder is connected to the pressing block. The pressing cylinder drives the pressing block to move downward so as to position and press the dust cover in the positioning groove through the pressing block.

9. The device for installing a dust cover for a dialysis fluid filter as described in claim 1, characterized in that, The membrane inlet cover device also includes a second vibrating plate and a second feeding bin for feeding material into the second vibrating plate. The second vibrating plate is provided with a second conveying channel for outputting dust covers. The outlet of the second conveying channel corresponds to the positioning groove. The dust covers enter the positioning groove sequentially from the outlet of the second conveying channel, and the opening end of the dust covers faces the conveying device horizontally. The side of the base is provided with a vertical dividing plate located between the base and the second conveying channel. The end of the dividing plate near the positioning groove is provided with a beveled surface.

10. The device for installing a dust cover for a dialysis fluid filter as described in claim 9, characterized in that, The positioning groove is open on three sides, with the opening surfaces being two adjacent side surfaces and the top surface. The two adjacent side opening surfaces correspond to the discharge port of the second conveying channel and the conveying device, respectively. The top surface of the opening faces the pressing block. The bottom of the positioning groove slopes downward in the direction away from the discharge port of the second conveying channel. The pressing surface of the pressing block is an arc shape that matches the circumferential contour of the dust cover.

Images