Hemodialysis filter packaging, metering and blending equipment

Abstract

The invention belongs to the technical field of filter elements for hemodialysis, and particularly relates to packaging, metering and blending equipment for a hemodialysis filter. Comprising the steps of raw material barrel inert gas pressurization feeding, transfer pump set gear pump feeding, vacuum pump vacuumizing, storage tank vacuum negative pressure material defoaming, heater material preheating, metering pump set metering output and two-component material mixing through a dynamic stirring device. In the production process, a barrel for storing two-component raw materials is filled with nitrogen for pressurization; the raw materials are conveyed through the transfer pump set; materials in the raw material barrel are conveyed into a material storage tank to be stored; after the material storage tank is filled with raw materials, the vacuum pump pumps out air in the material storage tank, negative pressure is formed in the material storage tank, and bubbles in the materials can be separated out; after vacuumizing is completed, nitrogen is filled into the storage tank through a nitrogen source for pressure maintaining for standby application; and after the equipment receives a gluing instruction of a production line, the equipment starts normal production.

Description

Technical Field

[0001] The invention relates to the technical field of filter elements for hemodialysis, and in particular to packaging, metering and mixing equipment for hemodialysis filters. Background Art

[0002] At present, the demand for hemodialysis filter materials in the medical market is increasing day by day. In the past, filter elements were basically imported from abroad, with high prices and long delivery times, resulting in huge medical expenses for people. At the same time, the equipment for the packaging process, an important key link in the production process, still needs to be imported. The equipment is expensive and the after-sales service time cycle is long, which leads to the inability to carry out normal production at full load. The output cannot keep up with the market demand, and the production cost of the product is high, which seriously hinders the development of health and medical levels. Therefore, hemodialysis filter material packaging, metering and mixing equipment is needed.

[0003] However, the prior art hemodialysis filter material packaging metering and mixing equipment is not convenient for achieving uninterrupted material supply when mixing the glue packaging of the end covers at both ends of the filter element, resulting in uncertainty in production output and affecting the final production quantity. It is necessary to develop a new function of hemodialysis filter packaging metering and mixing equipment. Summary of the invention

[0004] The hemodialysis filter packaging metering and mixing equipment proposed in the present invention solves the problem that the hemodialysis filter material packaging metering and mixing equipment in the prior art is not convenient for achieving uninterrupted material supply when mixing the glue packaging of the end covers at both ends of the filter element, resulting in production output uncertainty and affecting the final production quantity.

[0005] To achieve the above object, the present invention provides the following technical solutions: The hemodialysis filter packaging metering and mixing equipment includes a raw material barrel inert gas pressurized feeding, a pump group gear pump feeding, a vacuum pump vacuuming, a storage tank vacuum negative pressure material degassing, a heater material preheating, a metering pump group metering output, and a dynamic mixing unit to mix two components of materials. The metering and mixing mechanism includes a material supply component, a metering output component and a mixing component.

[0006] The material supply assembly includes a raw material barrel connected to a pump assembly, the pump assembly connected to a feed port at the top of a storage tank, the vacuum pump connected to an air extraction port at the top of the storage tank, the bottom discharge port of the storage tank connected to a lower feed port of a heater, and the top air intake port of the storage tank connected to a nitrogen source. The lower feed port of the heater is connected to a bottom discharge port of the storage tank, the upper discharge port of the heater is connected to a material inlet of a metering pump assembly, the material circulation port of the metering pump assembly is connected to a material circulation inlet at the top of the storage tank, and the material outlet of the metering pump assembly is connected to an inlet of a dynamic mixing device.

[0007] Preferably, the raw material barrel, the extraction pump group, the vacuum pump, the heater and the metering pump group are each provided with two groups, the two groups of the extraction pump groups are respectively connected to two groups of storage tanks, the four storage tanks are provided, and the four storage tanks are divided into two groups.

[0008] Preferably, the storage tank comprises a stainless steel barrel, a barrel cover is installed on the top of the stainless steel barrel, bolts are evenly installed on the sides of the barrel cover, a liquid level sensor, a solenoid valve group, a first pneumatic ball valve, a filter solenoid valve and a hydraulic safety valve are arranged on the top of the bolts, the bottom of the stainless steel barrel is in communication with the outlet filter block, and a second pneumatic ball valve and a first exhaust ball valve are respectively installed on the left and right sides of the outlet filter block.

[0009] Preferably, the pumping pump group forms a flow structure with the stainless steel barrel through the first pneumatic ball valve, the vacuum pump forms a flow structure with the stainless steel barrel through the filter solenoid valve, and the stainless steel barrel forms a flow structure with the heater through the outlet filter block.

[0010] Preferably, the metering pump includes a servo motor, a connecting flange is installed at the output end of the servo motor, a gear pump is installed at the other end of the connecting flange, a distribution block is installed at the front end of the gear pump, a feed ball valve is installed in front of the distribution block, an outlet check valve, a pressure sensor, a return needle valve and a flow meter are respectively connected and installed on the top of the distribution block, a second exhaust ball valve is installed on the rear side of the distribution block, a filter element is fixedly installed in front of the distribution block, and a filter screen cover is installed at the end of the filter element.

[0011] Preferably, the connecting flange is fixed to the servo motor via the second exhaust ball valve, the connecting flange forms a rotating structure via the servo motor, and the filter screen cover forms a flow structure between the filter element and the distribution block.

[0012] Preferably, the dynamic mixing device comprises a stirring barrel, a fixed column is installed on the left side of the stirring barrel, a driving motor is installed on the bottom of the fixed column, a positioning rod is installed through the side of the fixed column, the top of the positioning rod is fixed to the support arm, a threaded rod is installed inside the support arm, three groups of cross arms are fixedly installed on the right side of the support arm, a top fixed disk is fixedly installed on the right side of the cross arm, a second motor is fixedly installed on the top of the top fixed disk, a pulley is installed on the output end of the second motor, the pulleys are provided with two groups symmetrical to each other, the pulleys are driven by a driving belt, the bottom end of the pulley is fixed to the side of the bearing mounting plate, a rotating rod is installed below the bearing mounting plate, a rotating ball rod is fixedly installed in the middle of the rotating rod, a bevel gear is fixedly installed below the rotating ball rod, a bevel plate is fixedly installed below the bevel gear, a stirring tooth is fixedly installed on the bottom end of the rotating rod, a driving gear is meshed and installed behind the bevel gear, and the driving gear is coaxial with the pulley.

[0013] Preferably, the support arm forms a lifting structure through the threaded rod and the fixed column, and the support arm forms a sliding structure through the positioning rod and the fixed column.

[0014] Preferably, the pulleys are provided in two groups, one group of the pulleys is coaxial with the second motor, the pulleys form a rotating structure through the second motor, the two groups of the pulleys form a transmission structure through the driving belts, the bearing mounting plate forms a rotating structure through the pulleys, and the driving gear forms a rotating structure through the pulleys.

[0015] Preferably, the rotating rod forms a rotating structure through the bevel gear and the driving gear, the rotating rod forms a rotating structure through the rotating ball rod, and the rotating rod is rotationally connected to the bearing mounting plate.

[0016] The present invention proposes a hemodialysis filter encapsulation metering and mixing device. Compared with the prior art, the present invention has the following beneficial effects: 1. During use, the present invention provides different raw materials to two groups of storage tanks through two groups of raw material barrels respectively, and the raw materials are transported by the extraction pump group, and the different raw materials are extracted into the storage tank for storage. When the storage tank is full of raw materials, the vacuum pump will separate out the materials inside the storage tank and evacuate the inside of the storage tank. After the vacuuming is completed, the inside of the storage tank is filled with nitrogen through a nitrogen source to maintain the pressure for standby use. A heater is installed between the storage tank and the metering pump group. When the material temperature is lower than the working temperature, the metering pump group will start the circulation mode, and the material circulates in the storage tank and the heater. The circulation is stopped when the material temperature reaches the set temperature.

[0017] 2. During the use of the present invention, two storage tanks are provided in each group. When used for the first time, the material is extracted by the extraction pump group so that both storage tanks are filled with the material, and then the material is vacuumed to degas. After the degassing of the material is completed, nitrogen is injected, and the equipment is in production standby state. When the production starts, the material in the first storage tank is used first. When the material in the first storage tank is exhausted, it automatically switches to the material in the second storage tank. When the material in the second storage tank is used, the extraction pump group will replenish the material in the first storage tank. After the material is replenished, it will automatically vacuum and degas. After the degassing of the material is completed, nitrogen will be filled to maintain pressure and standby; when the material in the second storage tank is exhausted, it will automatically switch to the material in the first storage tank, and the extraction pump will be used to replenish the material in the second storage tank. This reciprocating process can achieve uninterrupted feeding of a single material.

[0018] 3. During the use of the present invention, the raw material barrel uses the extraction pump group to input the raw material into the interior of the stainless steel barrel through the first pneumatic ball valve for storage, so as to facilitate the next step of use. After the storage barrel is filled with the material, the air in the material inside the storage barrel is extracted by the vacuum pump to degas the material. After the degassing of the material is completed, nitrogen is filled into the storage barrel to prevent the material from coming into contact with the atmosphere and causing a chemical reaction.

[0019] 4. During use of the present invention, the second motor drives a group of pulleys below to rotate, and then the pulleys drive another group of pulleys to rotate through the connected driving belt. Since the pulleys and the sides of the bearing mounting plate are fixed to each other, the bearing mounting plate will be driven to rotate by the pulleys without coaxial rotation. Then the rotating ball rod is installed inside the middle top fixed plate, so that the rotating rod will rotate by rotating the ball rod, and the angle of the bottom stirring teeth inside the stirring barrel is adjusted, so that the stirring teeth can stir different positions inside the stirring barrel, thereby improving the stirring accuracy and avoiding stirring dead angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the overall process of the hemodialysis filter packaging metering and mixing device of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the hemodialysis filter packaging metering and mixing device of the present invention.

[0022] Figure 3 It is a left-side structural schematic diagram of the hemodialysis filter packaging metering and mixing device of the present invention.

[0023] Figure 4 It is a front view structural schematic diagram of the hemodialysis filter packaging metering and mixing device of the present invention.

[0024] Figure 5It is a three-dimensional schematic diagram of a material storage barrel in the hemodialysis filter packaging metering and mixing device of the present invention.

[0025] Figure 6 It is a schematic diagram of the left side structure of the storage barrel in the hemodialysis filter packaging metering and mixing equipment of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the dosage group in the hemodialysis filter packaging metering and mixing device of the present invention.

[0027] Figure 8 It is a right view structural schematic diagram of the dosage group in the hemodialysis filter packaging metering and mixing device of the present invention.

[0028] Fig. 9 The figure is a schematic diagram of the structure of the dynamic stirring mechanism in the hemodialysis filter encapsulation metering and mixing device of the present invention.

[0029] Fig.10 The present invention is a schematic cross-sectional view of the support arm of the dynamic stirring mechanism in the hemodialysis filter packaging metering and mixing device.

[0030] Fig.11 The figure is a schematic cross-sectional view of the dynamic stirring mechanism in the hemodialysis filter encapsulation metering and mixing device of the present invention.

[0031] In the figure: 1. Raw material barrel; 2. Pumping pump group; 3. Vacuum pump; 4. Storage tank; 401. Stainless steel barrel; 402. Barrel cover; 403. Bolt; 404. Liquid level sensor; 405. Solenoid valve group; 406. First pneumatic ball valve; 407. Filter solenoid valve; 408. Hydraulic safety valve; 409. Outlet filter block; 410. Second pneumatic ball valve; 411. First exhaust ball valve; 5. Heater; 6. Metering pump group; 601. Servo motor; 602. Second exhaust ball valve; 603. Connecting flange; 604. Gear pump; 605. Distribution block; 606. Feed ball valve; 607. Outlet check valve; 608. Switch ball valve; 609 , pressure sensor; 610, return needle valve; 611, flow meter; 612, filter cover; 613, filter element; 7, dynamic stirring mechanism; 701, stirring barrel; 702, fixed column; 703, drive motor; 704, positioning rod; 705, support arm; 706, threaded rod; 707, cross arm; 708, second motor; 709, top fixed plate; 710, pulley; 711, drive belt; 712, bearing mounting plate; 713, rotating rod; 714, rotating ball rod; 715, bevel gear; 716, bottom mounting plate; 717, bevel plate; 718, stirring tooth; 719, driving gear; 8, control computer; 9, nitrogen source. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-11 The present invention provides a technical solution: a hemodialysis filter encapsulation metering and mixing device, wherein the metering and mixing mechanism includes a material supply component, a metering output component and a mixing component.

[0034] The material supply assembly includes a raw material barrel 1, a suction pump group 2, a vacuum pump 3, a storage tank 4, and a nitrogen source 9; the raw material barrel 1 is connected to the suction pump group 2, the suction pump group 2 is connected to the storage tank 4, the vacuum pump 3 is connected to the storage tank 4, the storage tank 4 is connected to the heater 5, and the storage tank 5 is connected to the nitrogen source 9.

[0035] The metering output component includes a heater 5 and a metering pump group 6; the heater 5 is connected to the storage tank 4, the heater 4 is connected to the metering pump group 6, the metering pump group 6 is connected to the storage tank 4, and the metering pump group 6 is connected to the dynamic mixing device 7.

[0036] The mixing assembly includes a dynamic stirring mechanism 7 and a control computer 8 . The outlet of the dosage group 6 is in communication with the dynamic stirring mechanism 7 . A nitrogen source 9 is installed on the left side of the storage barrel 4 .

[0037] Furthermore, two groups of raw material barrels 1, extraction pump groups 2, vacuum pumps 3, heaters 5 and metering pump groups 6 are provided, and the two groups of extraction pump groups 2 are respectively connected to the two groups of storage tanks 4. There are four storage tanks 4, and the four storage tanks 4 are divided into two groups. During use, different raw materials are provided to the two groups of storage tanks 4 through the two groups of raw material barrels 1, and the raw materials are transported by the extraction pump group 2, and the different raw materials are transported to the storage tanks 4 for storage. When the storage tanks 4 are full of raw materials, the vacuum pump 3 will separate out the materials in the storage tanks 4, vacuum the storage tanks 4, and degas the materials in the storage tanks. After the vacuum degassing of the materials is completed, the storage tanks 4 are filled with nitrogen through the nitrogen source 9 to maintain the pressure for standby use. A heater 5 is installed between the storage tanks 4 and the metering pump group 6. When the material temperature is lower than the working temperature, the metering pump group 6 will start the circulation mode, and the materials circulate in the storage tanks 4 and the heater 5. The circulation is stopped when the material temperature reaches the set temperature. At the same time, each group of storage tanks 4 is provided with two. When used for the first time, the material is extracted by the extraction pump group 2 so that the two storage tanks 4 are filled with the material, and then the vacuum pump 3 is evacuated to degas the material. After the degassing of the material is completed, nitrogen is injected into the storage tank 4, and the equipment is in a production standby state; when the production starts, the material in the first storage tank 4 is used first. When the material in the first storage tank 4 is exhausted, the material in the second storage tank 4 is automatically switched to be used. When the material in the second storage tank 4 is used, the extraction pump group 2 will replenish the material into the first storage tank 4. After the material is replenished, the vacuum pump 3 will automatically perform vacuum degassing. After the degassing of the material is completed, nitrogen will be filled to maintain pressure and standby; when the material in the second storage tank 4 is exhausted, the material in the first storage tank 4 is automatically switched to be used, and the extraction pump 2 is used to replenish the material in the second storage tank 4, and so on and so forth to achieve uninterrupted supply of a single material.

[0038] Furthermore, the storage tank 4 includes a stainless steel barrel 401, a barrel cover 402 is installed on the top of the stainless steel barrel 401, bolts 403 are evenly installed on the sides of the barrel cover 402, a liquid level sensor 404, a solenoid valve group 405, a first pneumatic ball valve 406, a filter solenoid valve 407 and a safety valve group 408 are arranged on the top of the barrel cover 402, and the bottom outlet of the stainless steel barrel 401 is connected to the filter 409, and the second pneumatic ball valve 410 and the first exhaust ball valve 411 are respectively installed on the left and right sides of the filter 409.

[0039] Furthermore, the pumping group 2 forms a circulation structure with the stainless steel barrel 401 through the first pneumatic ball valve 406, the vacuum pump 3 forms a circulation structure with the stainless steel barrel 401 through the filtering solenoid valve 407, the stainless steel barrel 401 forms a circulation structure with the heater 5 through the outlet filter block 409, and the raw material barrel 1 transports the raw material through the first pneumatic ball valve 406 to the inside of the stainless steel barrel 401 for storage through the pumping group 2, so as to facilitate the next step of use. After the material is filled in the storage tank 4, the air in the material inside the storage tank 4 is extracted by the vacuum pump 3, and then the storage tank 4 is filled with nitrogen. The nitrogen protects the material from contact with the air to avoid chemical reaction, and also pressurizes the material in the storage tank. The feed inlet of the metering pump group 6 has sufficient pressure.

[0040] Furthermore, the metering pump group 6 includes a servo motor 601, and a connecting flange 603 is installed at the output end of the servo motor 601, and a metering gear pump 604 is installed at the other end of the connecting flange 603. A distribution block 605 is installed at the front end of the metering gear pump 604, and a feed ball valve 606 is installed in front of the distribution block 605. The top of the distribution block 605 is respectively connected and installed with a material metering output check valve 607, a pressure sensor 609, a circulation switch needle valve 610 and a flow meter 611, a switch ball valve 608 is installed on the upper part of the material metering output check valve, a second exhaust ball valve 602 is installed on the rear side of the distribution block 605, a filter element 613 is fixedly installed in front of the distribution block 605, and a filter mesh cover 612 is installed at the end of the filter element 613.

[0041] Furthermore, the connecting flange 603 is fixed to the servo motor 601 through the second exhaust ball valve 602, the connecting flange 603 forms a rotating structure through the servo motor 601, the filter cover 612 forms a flow structure with the distribution block 605 through the filter element 613, the servo motor 601 is connected to the gear pump 604 through the connecting flange 603, the servo motor 601 drives the gear pump 604 to operate, the material is filtered through the filter and enters the distribution block 605, the flow meter 611 is responsible for detecting the material flow, and the pressure sensor 609 detects the outlet pressure. When the outlet pressure is too high, the equipment will alarm and shut down. At this time, the mixing pipe is solidified or the pipeline is blocked, and the fault should be checked and eliminated.

[0042] Furthermore, the dynamic stirring mechanism 7 includes a stirring barrel 701, a fixed column 702 is installed on the left side of the stirring barrel 701, a driving motor 703 is installed at the bottom of the fixed column 702, a positioning rod 704 is installed through the side of the fixed column 702, the top of the positioning rod 704 is fixed to the support arm 705, a threaded rod 706 is installed inside the support arm 705, a cross arm 707 is fixedly installed on the right side of the support arm 705, a top fixed plate 709 is fixedly installed on the right side of the cross arm 707, a second motor 708 is fixedly installed on the top of the top fixed plate 709, and a pulley 7 is installed on the output end of the second motor 708 10. The pulleys 710 are provided with two groups symmetrical to each other. The pulleys 710 are driven by a driving belt 711. The bottom end of the pulley 710 is fixed to the side of the bearing mounting plate 712. A rotating rod 713 is installed below the bearing mounting plate 712. A rotating ball rod 714 is fixedly installed in the middle of the rotating rod 713. A bevel gear 715 is fixedly installed below the rotating ball rod 714. A swash plate 717 is fixedly installed below the bevel gear 715. A stirring tooth 718 is fixedly installed at the bottom end of the rotating rod 713. A driving gear 719 is meshed and installed at the rear of the bevel gear 715. The driving gear 719 is coaxial with the pulley 710.

[0043] Furthermore, the support arm 705 forms a lifting structure with the threaded rod 706 and the fixed column 702, and the support arm 705 forms a sliding structure with the fixed column 702 through the positioning rod 704. The threaded rod 706 is driven to rotate by the driving motor 703, and the support arm 705 is meshed with the threaded rod 706, so that the support arm 705 will be driven to lift and lower. When the support arm 705 is lifted and lowered, the stirring assembly on the side will be driven to lift and lower synchronously. When lifting and lowering, the stirring teeth 718 can be driven to lift and lower inside the stirring barrel 701, so as to facilitate the uniform mixing of materials of different components arranged inside the stirring barrel 701. The change in the height of the stirring teeth 718 can mix different parts evenly, thereby improving the stirring efficiency.

[0044] Furthermore, two groups of pulleys 710 are provided, one group of pulleys 710 is coaxial with the second motor 708, the pulleys 710 form a rotating structure through the second motor 708, the two groups of pulleys 710 form a transmission structure through the drive belt 711, the bearing mounting plate 712 forms a rotating structure through the pulleys 710, and the driving gear 719 forms a rotating structure through the pulleys 710. During use, the second motor 708 drives the lower group of pulleys 710 to rotate, and then the pulleys 710 drive the other group of pulleys through the connected drive belt 711. 710 rotates. Since the pulley 710 and the sides of the bearing mounting plate 712 are fixed to each other, the bearing mounting plate 712 will be driven by the pulley 710 to rotate without coaxial rotation. Then the rotating ball rod 714 is installed inside the middle top fixed plate 709, so that the rotating rod 713 can rotate by rotating the ball rod 714, and adjust the angle of the bottom stirring teeth 718 inside the stirring barrel 701, so that the stirring teeth 718 can stir different positions inside the stirring barrel 701, thereby improving the stirring accuracy and avoiding stirring dead angles.

[0045] Furthermore, the rotating rod 713 forms a rotating structure with the bevel gear 715 and the driving gear 719, and the rotating rod 713 forms a rotating structure with the rotating ball rod 714. The rotating rod 713 is rotationally connected with the bearing mounting plate 712. During use, the pulley 710 coaxial with the driving gear 719 will be driven to rotate, and the driving gear 719 at the bottom will be driven to rotate during rotation. The driving gear 719 and the bevel gear 715 are meshed with each other, and the angle of the bevel gear 715 is inclined, so the rotating rod 713 will be driven to rotate, which is convenient for stirring and mixing the materials inside the stirring barrel 701.

[0046] Working principle: First, two groups of raw material barrels 1 provide different raw materials to two groups of storage tanks 4 respectively, and the raw materials are transported by the extraction pump group 2, and the different raw materials are transported to the storage tank 4 for storage. When the storage tank 4 is full of raw materials, the vacuum pump 3 will separate out the materials in the storage tank 4, evacuate the inside of the storage tank 4, and degas the materials in the storage tank. After the vacuum degassing of the materials is completed, the inside of the storage tank 4 is filled with nitrogen through the nitrogen source 9 to maintain the pressure for standby use. A heater 5 is installed between the storage tank 4 and the metering pump group 6. When the material temperature is lower than the working temperature, the metering pump group 6 will start the circulation mode, and the material circulates in the storage tank 4 and the heater 5. The circulation stops when the material temperature reaches the set temperature.

[0047] At the same time, each group of storage tanks 4 is provided with two. When used for the first time, the material is extracted by the extraction pump group 2 so that the two storage tanks 4 are filled with the material, and then the vacuum pump 3 is evacuated to degas the material. After the degassing of the material is completed, nitrogen is injected into the storage tank 4, and the equipment is in a production standby state; when the production starts, the material in the first storage tank 4 is used first. When the material in the first storage tank 4 is exhausted, the material in the second storage tank 4 is automatically switched to be used. When the material in the second storage tank 4 is used, the extraction pump group 2 will replenish the material into the first storage tank 4. After the material is replenished, the vacuum pump 3 will automatically perform vacuum degassing. After the degassing of the material is completed, nitrogen will be filled to maintain pressure and standby; when the material in the second storage tank 4 is exhausted, the material in the first storage tank 4 is automatically switched to be used, and the extraction pump 2 is used to replenish the material in the second storage tank 4, and so on and so forth to achieve uninterrupted supply of a single material.

[0048] During the feeding process, the raw material barrel 1 transports the raw material through the ball valve 406 to the inside of the stainless steel barrel 401 for storage through the pumping pump group 2, so as to facilitate the next step. After the material is filled in the storage tank 4, the air in the material inside the storage tank 4 is extracted through the vacuum pump 3, and then the storage tank 4 is filled with nitrogen. The nitrogen protects the material from contact with the air to avoid chemical reaction, and also pressurizes the material in the storage tank so that the inlet of the metering pump group 6 has sufficient pressure. Then the servo motor 601 is connected to the gear pump 604 through the connecting flange 603, and the servo motor 601 drives the gear pump 604 to operate. The material is filtered through the filter and enters the distribution block 605. The flow meter 611 is responsible for detecting the material flow. When the flow is lower than the set value, the control computer will provide the pump speed to make the output flow meet the set flow. When the flow meter detects the output flow high pressure set flow, the metering pump will reduce the speed so that the output flow of the pump is always within the set value, forming a complete closed-loop control to ensure accurate metering output. The pressure sensor 609 detects the outlet pressure. When the outlet pressure is too high, the flow meter 611 is responsible for detecting the material flow. The pressure sensor 609 detects the outlet pressure. When the outlet pressure is too high, the equipment will alarm and shut down. At this time, the mixing pipe is solidified or the pipeline is blocked, and the fault should be checked and eliminated.

[0049] Finally, the different raw materials discharged enter the interior of the dynamic stirring mechanism 7, and the second motor 708 drives a group of pulleys 710 below to rotate, and then the pulleys 710 drive another group of pulleys 710 to rotate through the connected driving belt 711. Since the pulleys 710 and the sides of the bearing mounting plate 712 are fixed to each other, the bearing mounting plate 712 will be driven by the pulleys 710 to rotate without coaxial rotation, and then the rotating ball rod 714 is installed inside the middle top fixed plate 709, so that the rotating rod 713 can rotate by rotating the ball rod 714, and the angle of the bottom stirring teeth 718 inside the stirring barrel 701 is adjusted, so that the stirring teeth 718 can stir different positions inside the stirring barrel 701, thereby improving the stirring accuracy and avoiding stirring dead angles; The pulley 710 coaxial with the driving gear 719 will be driven to rotate, and the driving gear 719 at the bottom will be driven to rotate during the rotation. The driving gear 719 is meshed with the bevel gear 715, and the angle of the bevel gear 715 is inclined, so the rotating rod 713 will be driven to rotate, which is convenient for stirring and mixing the materials inside the stirring barrel 701. At the same time, the threaded rod 706 is driven to rotate by the driving motor 703, and the support arm 705 is meshed with the threaded rod 706, so the support arm 705 will be driven to rise and fall. When the support arm 705 is lifted and lowered, the stirring components on the side will be driven to rise and fall synchronously. When lifting and lowering, the stirring teeth 718 can be driven to rise and fall inside the stirring barrel 701, which is convenient for evenly stirring materials of different components arranged inside the stirring barrel 701. The change in the height of the stirring teeth 718 can mix different parts evenly, thereby improving the stirring efficiency.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hemodialysis filter encapsulation metering and mixing device, comprising a metering and mixing mechanism, a raw material barrel (1), a material extraction pump group (2), a vacuum pump (3), a material storage tank (4), a heater (5), a metering pump group (6) and a dynamic mixing device (7). The device is characterized in that: The metering and mixing mechanism includes a material supply component, a metering output component and a mixing component; The material supply assembly comprises a raw material barrel (1), a material extraction pump group (2), a vacuum pump (3), a material storage tank (4) and a nitrogen source (9); the raw material barrel (1) is connected to the material extraction pump group (2), the material extraction pump group (2) is connected to a feed inlet at the top of the material storage tank (4), the vacuum pump (3) is connected to a gas extraction port at the top of the material storage tank (4), the bottom discharge port of the material storage tank (4) is connected to a feed inlet at the bottom of the heater (5), and the top gas inlet of the material storage tank (4) is connected to the nitrogen source (9); The metering output assembly comprises a heater (5) and a metering pump group (6); the lower feed port of the heater (5) is connected to the bottom discharge port of the storage tank (4), the upper discharge port of the heater (5) is connected to the material inlet of the metering pump group (6), the material circulation port of the metering pump group (6) is connected to the material circulation inlet at the top of the storage tank (4), and the material outlet of the metering pump group (6) is connected to the inlet of the dynamic mixing device (7); The mixing component comprises a dynamic mixer (7) and a control computer (8), and the material outlet of the metering pump group (6) is connected to the dynamic mixer (7).

2. The hemodialysis filter packaging metering and mixing equipment according to claim 1, characterized in that: The raw material barrel (1), the material extraction pump group (2), the vacuum pump (3), the heater (5) and the metering pump group (6) are each provided in two groups, and the two groups of the material extraction pump groups (2) are respectively connected to the two groups of material storage tanks (4). There are four material storage tanks (4), and the four material storage tanks (4) are divided into two groups.

3. The hemodialysis filter packaging metering and mixing equipment according to claim 1, characterized in that: The storage tank (4) comprises a stainless steel barrel (401), a barrel cover (402) is installed on the top of the stainless steel barrel (401), bolts (403) are evenly installed on the sides of the barrel cover (402), a liquid level sensor (404), a solenoid valve group (405), a first pneumatic ball valve (406), a filter solenoid valve (407) and a safety valve group (408) are arranged on the top of the barrel cover (402), the bottom outlet of the stainless steel barrel (401) is connected to a filter (409), and a second pneumatic ball valve (410) and a first exhaust ball valve (411) are installed on the left and right sides of the filter (409), respectively.

4. The hemodialysis filter packaging metering and mixing equipment according to claim 3, characterized in that: The pumping pump group (2) forms a flow structure with the stainless steel barrel (401) through the first pneumatic ball valve (406), the vacuum pump (3) forms a flow structure with the stainless steel barrel (401) through the filter solenoid valve (407), and the stainless steel barrel (401) forms a flow structure with the heater (5) through the outlet filter block (409).

5. The hemodialysis filter packaging metering and mixing equipment according to claim 1, characterized in that: The metering pump group (6) comprises a servo motor (601), the output end of the servo motor (601) is installed with a connecting flange (603), the other end of the connecting flange (603) is installed with a metering gear pump (604), the front end of the metering gear pump (604) is installed with a distribution block (605), the front end of the distribution block (605) is installed with a feed ball valve (606), the top of the distribution block (605) is connected with a material metering output check valve (607), a pressure sensor (609), a circulation switch needle valve (610) and a flow meter (611), respectively, the upper part of the material metering output check valve is installed with a switch ball valve (608), the rear side of the distribution block (605) is installed with a second exhaust ball valve (602), the front of the distribution block (605) is fixedly installed with a filter element (613), and the end of the filter element (613) is installed with a filter screen cover (612).

6. The hemodialysis filter packaging metering and mixing equipment according to claim 5, characterized in that: The connecting flange (603) is fixed to the servo motor (601) via the second exhaust ball valve (602); the connecting flange (603) forms a rotating structure via the servo motor (601); and the filter screen cover (612) forms a flow structure with the distribution block (605) via the filter element (613).

7. The hemodialysis filter packaging metering and mixing equipment according to claim 1, characterized in that: The dynamic stirring mechanism (7) comprises a stirring barrel (701), a fixed column (702) is installed on the left side of the stirring barrel (701), a driving motor (703) is installed on the bottom of the fixed column (702), a positioning rod (704) is installed through the side of the fixed column (702), the top of the positioning rod (704) is fixed to the support arm (705), a threaded rod (706) is installed inside the support arm (705), three sets of cross arms (707) are fixedly installed on the right side of the support arm (705), a top fixed disk (709) is fixedly installed on the right side of the cross arm (707), a second motor (708) is fixedly installed on the top of the top fixed disk (709), and a pulley (710) is installed on the output end of the second motor (708). The pulley (710) is provided with two groups symmetrical to each other. The pulleys (710) are driven by a driving belt (711). The bottom end of the pulley (710) is fixed to the side of the bearing mounting plate (712). A rotating rod (713) is installed below the bearing mounting plate (712). A rotating ball rod (714) is fixedly installed in the middle of the rotating rod (713). A bevel gear (715) is fixedly installed below the rotating ball rod (714). A swash plate (717) is fixedly installed below the bevel gear (715). A stirring tooth (718) is fixedly installed at the bottom end of the rotating rod (713). A driving gear (719) is meshedly installed at the rear of the bevel gear (715). The driving gear (719) is coaxial with the pulley (710).

8. The hemodialysis filter packaging metering and mixing equipment according to claim 7, characterized in that: The support arm (705) forms a lifting structure with the threaded rod (706) and the fixed column (702), and the support arm (705) forms a sliding structure with the fixed column (702) through the positioning rod (704).

9. The hemodialysis filter packaging metering and mixing equipment according to claim 7, characterized in that: The pulleys (710) are provided in two groups, one group of the pulleys (710) is coaxial with the second motor (708), the pulleys (710) form a rotating structure through the second motor (708), the two groups of the pulleys (710) form a transmission structure through a driving belt (711), the bearing mounting plate (712) forms a rotating structure through the pulleys (710), and the driving gear (719) forms a rotating structure through the pulleys (710).

10. The hemodialysis filter packaging metering and mixing equipment according to claim 7, characterized in that: The rotating rod (713) forms a rotating structure through the bevel gear (715) and the driving gear (719), the rotating rod (713) forms a rotating structure through the rotating ball rod (714), and the rotating rod (713) is rotatably connected to the bearing mounting plate (712).

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