Rubber ring taking and sealing equipment for dialysate filter production

Abstract

The utility model discloses a sealing rubber ring taking device used in dialysate filter production, which comprises a cutting device and a dismantling device which are both arranged on a bottom plate, and the bottom plate is arranged on a machine frame. The cutting device comprises a positioning mechanism and a cutting mechanism; the positioning mechanism comprises a clamping seat assembly installed on the back plate, a power source driving the clamping seat assembly to move and a positioning hole formed in the base plate, the clamping seat assembly comprises a positioning seat and an elastic clamping jaw, and the cutting mechanism comprises a cutter assembly and a driving assembly driving the cutter assembly to move. The cutter assembly comprises a sliding plate and a plurality of cutters which are installed on the sliding plate and have different cutting depths, the dismantling device comprises a supporting base used for containing the filter shell, a pressing mechanism and a dismantling mechanism, and the pressing mechanism comprises a pressing block and a pressing air cylinder driving the pressing block to move. The dismounting mechanism comprises a U-shaped clamping seat and a dismounting cylinder for driving the U-shaped clamping seat to move; feeding and discharging are convenient, and the cutting precision is high.

Description

Technical Field

[0001] This utility model relates to the technical field of filter production equipment, specifically to a device for removing sealing rings in the production of dialysis fluid filters. Background Art

[0002] Dialysis is a medical procedure primarily used to help patients with impaired kidney function remove waste, excess water, and toxins from their bodies. During this process, dialysate is used to exchange with the patient's blood to mimic the function of a normal kidney. The main function of the dialysate filter is to filter the dialysate, ensuring that it does not contain impurities, bacteria, or other contaminants that are harmful to the patient.

[0003] The production process of the dialysate filter mainly involves: first, installing sealing rings at both ends of a cylindrical filter housing using a snap-fit ​​method; then, placing the filter membrane bundle inside the housing; sealing the open end of the sealing ring with aluminum foil using heat fusion; injecting adhesive into the housing using an adhesive injection machine; centrifuging, drying, and cutting the adhesive-injected housing; removing the sealing ring; and then assembling the end caps at both ends of the filter housing. After adhesive injection, the aluminum foil on the end face of the sealing ring needs to be cut off before removing the sealing ring from the housing. Only then can the filter be precisely cut and the end caps assembled. However, existing sealing ring removal devices generally have significant drawbacks, such as complex filter clamping and positioning, time-consuming loading and unloading processes, and poor aluminum foil cutting quality, leading to missed or incomplete cuts, causing the sealing ring to fail to be removed and resulting in machine jamming. Therefore, necessary improvements and innovations to existing sealing ring removal equipment are urgently needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a device for removing sealing rings in the production of dialysis fluid filters. This device is convenient for loading and unloading materials, has high cutting precision, and can adapt to various filter specifications and models.

[0005] The specific content is as follows: A device for removing sealing rings in the production of dialysis fluid filters, including a cutting device and a removal device both mounted on a base plate, wherein the base plate is mounted on a frame;

[0006] The cutting device includes a positioning mechanism and a cutting mechanism;

[0007] The positioning mechanism includes a card holder assembly mounted on the back plate, a power source for driving the card holder assembly to move, and a positioning hole provided on the substrate. The card holder assembly includes a positioning seat and elastic claws. The filter housing is placed on the positioning seat and clamped by the elastic claws. The substrate is located at one end of the card holder assembly. The power source drives the card holder assembly to position and press the filter housing into the positioning hole of the substrate, and the end face of the filter housing extends out of the positioning hole.

[0008] The cutting mechanism includes a cutting tool assembly and a driving assembly for driving the cutting tool assembly. The cutting tool assembly includes a sliding plate and multiple cutting blades with different cutting depths mounted on the sliding plate. The cutting tool assembly and the card holder assembly are respectively disposed on both sides of the base plate. The driving assembly drives the cutting tool assembly to move so as to complete the cutting of the end face of the filter housing that is positioned and extends out of the positioning hole by the cutting blades.

[0009] The removal device includes a support base, a clamping mechanism, and a removal mechanism. The clamping mechanism includes a pressure block and a clamping cylinder that drives the pressure block to move. The removal mechanism includes a U-shaped retainer and a removal cylinder that drives the U-shaped retainer to move. The filter housing with the end face cut is placed on the support base. The clamping cylinder drives the pressure block to move, so that the pressure block presses against the membrane interface of the filter. The removal cylinder drives the U-shaped retainer to move, and the U-shaped retainer removes the sealing ring at the end of the filter housing from the filter housing.

[0010] In one specific embodiment of this utility model, the number of positioning mechanisms is multiple sets, and each set of positioning mechanisms corresponds to positioning filter housings of different specifications.

[0011] In a specific embodiment of this utility model, the number of positioning seats in the card seat assembly is multiple and they are all vertically slidably mounted on a first guide rail fixed to the back plate. The positioning seats are provided with horizontally open arc grooves that match the filter housing. Vertical connecting rods are connected between the positioning seats, and the elastic claws are rotatably mounted on the connecting rods.

[0012] In a specific embodiment of this utility model, the power source is a positioning cylinder vertically mounted on the back plate. One end of the positioning cylinder is connected to one of the positioning seats through a connecting block. The back plate is vertically arranged and its lower end is fixed on the base plate. The base plate is horizontally fixed on the bottom plate.

[0013] In a specific embodiment of this utility model, the elastic claw includes two horizontally symmetrically arranged claw bodies. The two claw bodies are rotatably mounted on two different connecting rods. The outer end of the claw body is provided with a positioning protrusion for positioning the filter housing. The inner and outer sides of the positioning protrusion are provided with inclined surfaces to facilitate the entry and exit of the filter housing. A tensioned elastic band is provided between the roots of the two claw bodies. The elasticity of the elastic band keeps the two claw bodies in a closed state. A limiting block is also provided between the roots of the two claw bodies.

[0014] In one specific embodiment of this utility model, the driving assembly includes a first synchronous belt horizontally tensioned and mounted on a base plate and a motor that drives the first synchronous belt to rotate via a second synchronous belt. The sliding plate is horizontally slidably mounted on a second guide rail fixed to the base plate, and the sliding plate is connected to the first synchronous belt.

[0015] In one specific embodiment of this utility model, multiple cutters are installed horizontally on the upper surface of the sliding plate with the same orientation. The multiple cutters are distributed along the movement direction of the sliding plate, and the height of the multiple cutters in the vertical direction increases continuously.

[0016] In a specific embodiment of this utility model, each of the cutting blades is provided with a guide plate fixed on a sliding plate in front of it. The guide plate and the corresponding cutting blade are provided with a material leakage hole on the sliding plate. Both ends of the sliding plate are provided with brushes extending to the bottom plate.

[0017] In one specific embodiment of this utility model, the number of the support seats is multiple and distributed along a horizontal straight line. The support seat includes a base fixed on the bottom plate and a movable seat vertically mounted on the base through a slot. The movable seat is provided with an arc groove that matches the contour of the filter housing.

[0018] In a specific embodiment of this utility model, the U-shaped card holder includes a base connected to the removal cylinder and a U-shaped push plate vertically mounted on the base through a card slot. The opening of the U-shaped push plate faces vertically upward, and the pressure block is provided with an arc groove that matches the outer contour of the filter membrane outer interface.

[0019] The beneficial effects of this utility model are as follows: This utility model is a multi-functional integrated machine that combines aluminum foil cutting and sealing ring removal. First, the filter can be initially positioned by the cooperation of the elastic claw and the positioning seat. This design makes loading and unloading very convenient. At the same time, multiple sets of card seat components of different specifications can be set to meet the use of various filter specifications, and all of them can complete the aluminum foil cutting action through a single cutting mechanism. Furthermore, the cutting mechanism of this utility model, by setting multiple cutters with different cutting depths, can cut in small quantities multiple times, with low cutting power requirements, minimal damage, and high cutting precision. In addition, the support base and U-shaped card seat of the removal device are both designed separately, allowing for simple and quick replacement of different specifications of movable seats and U-shaped push plates to adapt to various filter specifications and meet more usage needs. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a sealing ring removal device used in the production of dialysis fluid filters, as shown in the embodiment.

[0021] Figure 2 for Figure 1A three-dimensional structural diagram of the cutting and dismantling device;

[0022] Figure 3 for Figure 2 A three-dimensional structural diagram of the positioning mechanism in the cutting device;

[0023] Figure 4 for Figure 3 A three-dimensional structural diagram showing the connection between the middle card slot assembly and the power source;

[0024] Figure 5 for Figure 2 A three-dimensional structural diagram of the cutting mechanism in the cutting device;

[0025] Figure 6 for Figure 5 A three-dimensional structural diagram of the middle cutter mounted on the sliding plate;

[0026] Figure 7 for Figure 1 A three-dimensional structural diagram of the dismantling device;

[0027] Explanation of the numbers in the diagram: 100, Frame; 101, Base plate; 1011, Main feeding hole; 1012, First auxiliary feeding hole; 1013, Second auxiliary feeding hole; 102, Storage drawer; 103, Protective cover; 104, Control box; 200, Positioning mechanism; 201, Back plate; 202, First guide rail; 203, Positioning seat; 204, Connecting rod; 205, Elastic claw; 2051, Claw body; 2052, Positioning protrusion; 2053, Inclined surface; 2054, Elastic band; 2055, Limiting block; 206, Positioning cylinder; 207, Connecting block; 208, Base plate; 209, Positioning hole; 300, Cutting mechanism; 301. First synchronous belt; 302. Second synchronous belt; 303. Motor; 304. Second guide rail; 305. Sliding plate; 306. Cutter; 307. Guide plate; 308. Leakage hole; 309. Brush; 400. Removal device; 401. Pressing mechanism; 4011. Pressing cylinder; 4012. Pressing block; 402. Removal mechanism; 4021. Removal cylinder; 4022. U-shaped bracket; 4023. Base; 4024. U-shaped push plate; 403. Support seat; 4031. Base; 4032. Movable seat; 500. Filter housing; 501. Membrane external interface; 502. Sealing ring. Detailed Implementation

[0028] 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.

[0029] Example, refer to Figures 1 to 7As shown, a device for removing sealing rings in the production of dialysate filters includes a cutting device and a removal device 400, both mounted on a base plate 101, which is mounted on a frame 100.

[0030] The cutting device includes a positioning mechanism 200 and a cutting mechanism 300. The positioning mechanisms 200 are multiple sets arranged vertically and parallel to each other. Each set of positioning mechanisms 200 corresponds to positioning filter housings 500 of different specifications, thus accommodating a wider range of filter sizes. Each positioning mechanism 200 includes a mounting bracket assembly on a back plate 201, a power source for driving the mounting bracket assembly, and positioning holes 209 on a base plate 208. The mounting bracket assembly includes positioning seats 203 and elastic claws 205. The number of positioning seats 203 in the mounting bracket assembly is [number missing]. Multiple positioning seats 203 are vertically slidably mounted on the first guide rail 202 fixed to the back plate 201. The positioning seat 203 is provided with a horizontally open arc groove that matches the filter housing 500. The opening direction of the positioning seat 203 is perpendicular to the movement direction of the cutter 306. A vertical connecting rod 204 is connected between two adjacent positioning seats 203. The elastic claw 205 is rotatably mounted on the connecting rod 204. In this embodiment, there are three positioning seats 203, and an elastic claw 205 is provided between two adjacent positioning seats 203.

[0031] In one specific embodiment, the elastic claw 205 includes two horizontally symmetrically arranged claw bodies 2051. The two claw bodies 2051 are rotatably mounted on two different connecting rods 204. The outer end of each claw body 2051 is provided with a positioning protrusion 2052 for positioning the filter housing 500. The inner and outer sides of the positioning protrusion 2052 are provided with inclined surfaces 2053 to facilitate the entry and exit of the filter housing 500. Therefore, the filter housing 500 can be pressed between the two claw bodies 2051 or removed from between the two claw bodies 2051 by hand, making loading and unloading very convenient. A tensioned elastic band 2 is provided between the roots of the two claw bodies 2051. 054, the elastic band 2054 keeps the two claws 2051 in a closed state. When the filter housing 500 is placed between the two claws 2051, the positioning protrusion 2052 at the outer end of the claw 2051 can clamp the filter housing 500 onto the positioning seat 203 under the action of the elastic band 2054. A limiting block 2055 is also provided between the roots of the two claws 2051. The limiting block 2055 controls the degree of closure of the two claws 2051, which facilitates feeding and prevents the two claws 2051 from being completely closed under the action of the elastic band 2054. In this case, the filter housing 500 cannot be directly placed between the two claws 2051 by pressing.

[0032] In one specific embodiment, the power source is a positioning cylinder 206 vertically mounted on the back plate 201. The positioning cylinder 206 is vertically positioned and its lower end is connected to the lowest positioning seat 203 via a connecting block 207. The positioning cylinder 206 drives the entire card holder assembly to move vertically. The back plate 201 is vertically positioned and its lower end is fixed to the base plate 208. The base plate 208 is horizontally fixed to the bottom plate 101. The positioning hole 209 on the base plate 208 is a stepped hole with a stepped surface on its inner side. The filter housing 500 is placed... The substrate 208 is located at the lower end of the mounting base 203 and clamped by the elastic claw 205. The positioning cylinder 206 drives the entire mounting base assembly to move downward. The lowest positioning base 203 abuts against the stepped surface of the lower end of the filter housing 500, thereby pressing the lower end of the filter housing 500 vertically into the positioning hole 209 of the substrate 208. That is, the edge of the sealing ring 502 at the lower end of the filter housing 500 protrudes and is supported on the stepped surface of the positioning hole 209. The end face of the sealing ring 502 extends downward out of the stepped hole, waiting for the cutter 306 to cut.

[0033] In one specific embodiment, the cutting mechanism 300 includes a cutting tool assembly and a driving assembly for driving the cutting tool assembly. The cutting tool assembly and the chuck assembly are respectively disposed on both sides of the base plate 208, and the cutting tool assembly is disposed below the base plate 208. A protective cover 103 with a flip-up cover is provided on the outside of the cutting tool assembly. A control box 104 is provided on one side of the protective cover 103. The cutting tool assembly includes a sliding plate 305 and multiple cutters 306 with different cutting depths mounted on the sliding plate 305. The sliding plate 305 is horizontally slidably mounted on a second guide rail 304 fixed to the base plate 101. The multiple cutters 306 face the same direction and are all horizontally mounted. On the upper surface of the sliding plate 305, multiple cutters 306 are distributed along the movement direction of the sliding plate 305, and the height of the multiple cutters 306 in the vertical direction increases continuously. Therefore, each cutter 306 has a different cutting depth, and a single cutting step can achieve multiple cuts in a small number of steps, making the cutting safer and more precise. The projection of the blade relative to the movement direction of the cutter 306 on the horizontal plane is inclined. After the sealing ring 502 at the end of the filter housing 500 is positioned in the positioning hole 209 of the substrate 208, the driving component drives the cutting tool assembly to move, so as to complete the cutting of the end face of the sealing ring 502 that is positioned and extends out of the positioning hole 209 by the cutter 306.

[0034] In one specific embodiment, each of the cutting blades 306 has a guide plate 307 fixed on a sliding plate 305 in front of its blade. The guide plate 307 and the sliding plate 305 between the guide plate 307 and the corresponding cutting blade have a discharge hole 308. Waste material generated during cutting passes through the guide plate 307, the discharge hole 308, and the discharge hole on the base plate 101, entering a storage drawer 102 located below the base plate 101. The base plate 101 has multiple discharge holes, including a main discharge hole 1011 vertically corresponding to the position of the base plate 208, and a first auxiliary discharge hole 1012 and a second auxiliary discharge hole 1012 located at both ends of the main discharge hole 1011. The auxiliary feeding hole 1013 and the sliding plate 305 are both provided with brushes 309 extending to the base plate 101. The waste generated during the cutting process is basically put into the storage drawer 102 through the main feeding hole 1011. Since the cutting tools and other tools will also carry a small amount of waste, the waste carried by the sliding plate 305 will be shaken off onto the base plate 101 during the movement of the sliding plate 305. Therefore, the moving sliding plate 305 can drive the brushes 309 at its end to sweep the waste shaken off onto the base plate 101 into the main feeding hole 1011 or the corresponding auxiliary feeding hole, thereby collecting the waste on the base plate 101 into the storage drawer 102.

[0035] The drive assembly includes a first synchronous belt 301 horizontally tensioned and mounted on a base plate 101 and a motor 303 that drives the first synchronous belt 301 to rotate via a second synchronous belt 302. The sliding plate 305 is connected to the first synchronous belt 301. The motor 303 is mounted on a frame 100 below the base plate 101. The motor 303 is connected to one of the pulleys that tension the first synchronous belt 301 via the second synchronous belt 302, thereby enabling the motor 303 to drive the first synchronous belt 301 to move. The first synchronous belt 301 drives the sliding plate 305 to slide horizontally back and forth along the second guide rail 304.

[0036] In one specific embodiment, the removal device 400 includes a support base 403, a clamping mechanism 401, and a removal mechanism 402. The removal mechanism 402 is disposed between the support base 403 and the clamping mechanism 401. The clamping mechanism 401 includes a pressure block 4012 and a clamping cylinder 4011 for driving the pressure block 4012. The removal mechanism 402 includes a U-shaped retainer 4022 and a removal cylinder 4021 for driving the U-shaped retainer 4022. Multiple support bases 403 are provided and distributed horizontally. The support bases 403 are mounted on the aforementioned protective cover 103. Each support base 403 includes components fixed to... The base 4031 on the base plate 101 and the movable seat 4032 vertically mounted on the base 4031 via a slot are provided. The movable seat 4032 has an arc groove that matches the contour of the filter housing 500 and faces vertically upward. The U-shaped slot 4022 includes a base 4023 connected to the removal cylinder 4021 and a U-shaped push plate 4024 vertically mounted on the base 4023 via a slot. The opening of the U-shaped push plate 4024 faces vertically upward. The pressure block 4012 has an arc groove that matches the outer contour of the filter membrane external interface 501. Both the support base 403 and the U-shaped slot 4022 adopt a split design, which can easily... The movable seat 4032 and U-shaped push plate 4024 of different specifications can be quickly replaced to adapt to various filter specifications and meet more usage needs. The filter housing 500, which has been cut at the end face in the previous step, is placed horizontally on the support seat 403. The sealing ring 502 at the end of the filter housing 500 is located between the U-shaped push plate 4024 and the pressure block 4012. The pressing cylinder 4011 drives the pressure block 4012 to move, so that the pressure block 4012 presses and positions itself against the membrane interface 501 of the filter through its arc groove. This allows the outer convex edge of the sealing ring 502 to be supported on the U-shaped push plate 4024, thereby connecting with the support seat. 403 positions the filter housing 500 to facilitate the removal of the sealing ring 502 in the next step; then, the removal cylinder 4021 drives the U-shaped bracket 4022 to move, and then the U-shaped push plate on the U-shaped bracket 4022 pushes the sealing ring 502 at the end of the filter housing 500 off the filter housing 500. The sealing ring 502 is removed and falls into the storage drawer 102 provided below the base plate 101. In this embodiment, the storage drawers 102 are all horizontally slidably installed on the frame 100 through multi-segment slide rails. The storage drawers 102 can be pulled out horizontally to remove waste.

[0037] 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 removing sealing rings in the production of dialysate filters, characterized in that, It includes a cutting device and a dismantling device, both mounted on a base plate, which is mounted on a frame; The cutting device includes a positioning mechanism and a cutting mechanism; The positioning mechanism includes a card holder assembly mounted on the back plate, a power source for driving the card holder assembly to move, and a positioning hole provided on the substrate. The card holder assembly includes a positioning seat and elastic claws. The filter housing is placed on the positioning seat and clamped by the elastic claws. The substrate is located at one end of the card holder assembly. The power source drives the card holder assembly to position and press the filter housing into the positioning hole of the substrate, and the end face of the filter housing extends out of the positioning hole. The cutting mechanism includes a cutting tool assembly and a driving assembly for driving the cutting tool assembly. The cutting tool assembly includes a sliding plate and multiple cutting blades with different cutting depths mounted on the sliding plate. The cutting tool assembly and the card holder assembly are respectively disposed on both sides of the base plate. The driving assembly drives the cutting tool assembly to move so as to complete the cutting of the end face of the filter housing that is positioned and extends out of the positioning hole by the cutting blades. The removal device includes a support base, a clamping mechanism, and a removal mechanism. The clamping mechanism includes a pressure block and a clamping cylinder that drives the pressure block to move. The removal mechanism includes a U-shaped retainer and a removal cylinder that drives the U-shaped retainer to move. The filter housing with the end face cut is placed on the support base. The clamping cylinder drives the pressure block to move, so that the pressure block presses against the membrane interface of the filter. The removal cylinder drives the U-shaped retainer to move, and the U-shaped retainer removes the sealing ring at the end of the filter housing from the filter housing.

2. The sealing ring removal device for dialysate filter production as described in claim 1, characterized in that, The number of positioning mechanisms is multiple sets, and each set of positioning mechanisms corresponds to positioning filter housings of different specifications.

3. The sealing ring removal device for dialysate filter production as described in claim 1, characterized in that, The card holder assembly has multiple positioning seats, all of which are vertically slidably mounted on a first guide rail fixed to the back plate. Each positioning seat has a horizontally open arc groove that matches the filter housing. Vertical connecting rods connect the positioning seats, and the elastic claws are rotatably mounted on the connecting rods.

4. The sealing ring removal device for dialysate filter production as described in claim 3, characterized in that, The power source is a positioning cylinder that is vertically mounted on the back plate. One end of the positioning cylinder is connected to one of the positioning seats through a connecting block. The back plate is vertically arranged and its lower end is fixed on the base plate. The base plate is horizontally fixed on the bottom plate.

5. The sealing ring removal device for dialysate filter production as described in claim 3, characterized in that, The elastic claw includes two horizontally symmetrically arranged claw bodies, which are rotatably mounted on two different connecting rods. The outer end of each claw body is provided with a positioning protrusion for positioning the filter housing. The inner and outer sides of the positioning protrusion are provided with inclined surfaces to facilitate the entry and exit of the filter housing. A tensioned elastic band is provided between the roots of the two claw bodies. The elasticity of the elastic band keeps the two claw bodies in a closed state. A limiting block is also provided between the roots of the two claw bodies.

6. The sealing ring removal device for dialysate filter production as described in claim 1, characterized in that, The drive assembly includes a first synchronous belt that is horizontally tensioned and mounted on the base plate and a motor that drives the first synchronous belt to rotate via a second synchronous belt. The sliding plate is horizontally slidably mounted on a second guide rail that is fixed to the base plate and is connected to the first synchronous belt.

7. The sealing ring removal device for dialysate filter production as described in claim 6, characterized in that, Multiple cutters are mounted horizontally on the upper surface of the sliding plate with the same orientation. The multiple cutters are distributed along the movement direction of the sliding plate, and the height of the multiple cutters in the vertical direction increases continuously.

8. The sealing ring removal device for dialysate filter production as described in claim 1, characterized in that, Each of the cutting blades has a guide plate fixed to a sliding plate in front of it. The guide plate and the corresponding cutting blade have a material leakage hole on the sliding plate. Both ends of the sliding plate have brushes extending to the base plate.

9. The sealing ring removal device for dialysate filter production as described in claim 1, characterized in that, The number of support seats is multiple and they are distributed along a horizontal straight line. Each support seat includes a base fixed to the bottom plate and a movable seat that is vertically installed on the base via a slot. The movable seat is provided with an arc groove that matches the contour of the filter housing.

10. The sealing ring removal device for dialysate filter production as described in claim 1, characterized in that, The U-shaped bracket includes a base connected to the removal cylinder and a U-shaped push plate vertically mounted on the base through a slot. The opening of the U-shaped push plate faces vertically upward, and the pressure block is provided with an arc groove that matches the outer contour of the filter membrane interface.

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