CN217125378U - Accurate high-efficient dialysis powder filling system - Google Patents

Abstract

The utility model provides an accurate high-efficient dialysis powder filling system belongs to dialysis powder production apparatus technical field. The bag feeding device comprises a fixed base and a workbench rotatably installed on the fixed base, wherein a plurality of first bag clamping portions are arranged at the edge of the workbench, a bag feeding station, a bag opening station, a filling station, a heat sealing station and a blanking station are sequentially arranged at the edge of the workbench along the rotating direction of the workbench, a bag feeding device, a bag opening device, a feeding device, a heat sealing machine and a conveying belt are sequentially and correspondingly arranged on each station, and an electronic weighing device is arranged in the middle of the conveying belt. The workstation rotates on unable adjustment base, makes the working tape in proper order from last bag station through filling station, heat-seal station and blanking station, accomplishes dialysis powder filling, wrapping bag heat-seal package and blanking transmission work to accomplish the step of weighing of every finished product dialysis powder packing on the conveyer belt, each station is arranged compactly, and the cooperation is accurate between the station, has production efficiency height, the effectual effect of filling.

Description

Accurate high-efficient dialysis powder filling system

Technical Field

The utility model relates to a dialysis powder production apparatus technical field especially relates to an accurate high-efficient dialysis powder filling system.

Background

In the hemodialysis, in the process of draining blood in vivo to the outside of a human body, the blood and electrolyte solution (dialysate) with similar body concentration are arranged inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and the substances are exchanged through the principles of dispersion, ultrafiltration, adsorption and convection, so that metabolic waste in the human body is removed, and the balance of electrolyte and acid-base is maintained; at the same time, the excess water in the body is removed, and the purified blood is returned to the whole process. With the development of medical technology in recent years, the technology for purifying blood becomes more mature, and the demand of dialysate and dialysate as medical supplies essential for blood purification is greatly increased.

In the existing dialysis powder production process, a continuous flow production line consisting of devices with single functions is often adopted, and the quality of finished products is easy to be uneven due to the fact that the production flow line is long and errors are easy to exist in the matching and debugging process among the devices.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a high-efficient dialysis powder filling system of precision.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

provided is a precise and efficient dialysis powder filling system, comprising:

the bag clamping device comprises a fixed base and a workbench rotatably installed on the fixed base, wherein a first driving motor for driving the workbench to rotate is arranged in the fixed base, a plurality of first bag clamping portions for clamping packaging bags are uniformly arranged at the edge of the workbench along the circumferential direction of the workbench, and a bag feeding station, a bag opening station, a filling station, a heat sealing station and a blanking station are sequentially arranged at the edge of the workbench along the rotating direction of the workbench;

the bag feeding device is fixed on the fixed base and corresponds to the bag feeding station, and is used for providing a packaging bag to the first bag clamping part at the bag feeding station;

the bag opening device is fixed on the fixed base and corresponds to the bag opening station, and the bag opening device is used for opening the upper opening of the packaging bag;

the feeding device is fixed on the fixed base and corresponds to the filling station, and the feeding device is used for quantitatively injecting powder into the upper opening of the packaging bag;

the heat sealing machine is fixed on the fixed base and corresponds to the heat sealing station, and the heat sealing machine is used for carrying out hot plastic sealing on the upper opening of the packaging bag;

the conveyer belt is arranged on one side of the fixed base and is positioned right below the blanking station, and an electronic weighing device used for detecting the packaging weight of finished powder is arranged in the middle of the conveyer belt.

Further, the bag feeding device comprises:

the packaging bag stacking device comprises a first support, a second support and a third support, wherein the first support is fixedly arranged on a fixed base, a placing table for stacking packaging bags is arranged at the top of the first support, and a bag taking opening is formed in the bottom of the placing table;

the first vacuum chuck is positioned right below the bag taking opening, and a first cylinder for driving the first vacuum chuck to vertically lift is arranged on the first support;

the clamping arm is rotatably arranged on the first support, a second bag clamping portion used for clamping the packaging bag is arranged at the movable end of the clamping arm, a second cylinder used for driving the clamping arm to rotate is arranged on the first support, and the clamping arm is used for clamping the packaging bag on the vacuum chuck and moving the packaging bag to the first bag clamping portion of the bag feeding station.

Further, the bag opening device comprises a second support and two movable rods, the two movable rods are horizontally arranged on the second support in a sliding mode, the two movable rods are symmetrically arranged on two sides of the first clamping portion of the bag opening station, a second vacuum chuck is arranged on one side, seen by the two movable rods, of each movable rod, and a driving cylinder group used for driving the two movable rods to move reversely and synchronously is arranged on the second support.

Further, loading attachment includes material loading machine, third support and quantitative hopper, and the third support is fixed to be set up on unable adjustment base, and the quantitative hopper is fixed to be set up on the third support, and the material loading machine is located one side of unable adjustment base, and the upper shed of quantitative hopper is located the material loading machine under the export, and the under shed of quantitative hopper is located the filling station directly over.

Further, loading attachment still includes the guide fill, and the discharge gate of constant volume fill extends into the feed inlet of guide fill, and the discharge gate of guide fill can insert in the upper shed of wrapping bag on the filling station, is provided with the driving piece that is used for ordering about the vertical lift of guide fill on the third support.

Further, still include exhaust apparatus, exhaust apparatus includes mount pad and two supporting rods, and two supporting rods are parallel and the symmetry sets up in the below of heat-sealing machine, and the homonymy tip of two supporting rods all is connected with the connecting rod, and the tip that the supporting rod was kept away from to the connecting rod rotates the setting on the mount pad, is provided with on the mount pad to be used for ordering about the synchronous reverse pivoted drive assembly of two connecting rods.

Further, fixed mounting has the backing sheet on the connecting rod, and the equal vertical fixation in one side that two supporting poles kept away from each other has the slide bar, and the slide bar vertical slip is worn to establish on the backing sheet, and the cover is equipped with and is used for ordering about the spring that the backing sheet was kept away from to the supporting pole on the slide bar, is close to the fixed flexible layer that is provided with on the lateral wall of supporting pole on, and the flexible layer is located the below of supporting pole, and the lateral wall that the backing sheet was kept away from to the flexible layer flushes with the lateral wall that the backing sheet was kept away from to the supporting pole.

Furthermore, the side walls of the two clamping rods, which are close to each other, are vertically provided with exhaust grooves.

The embodiment of the application provides a precise and efficient dialysis powder filling system, install the workstation on unable adjustment base with rotating including unable adjustment base, the edge of workstation evenly is provided with a plurality of first bag portions that press from both sides that are used for the centre gripping wrapping bag along self circumference, the direction of rotation along the workstation is equipped with the bagging-off station in proper order at the edge of workstation, open the bag station, the filling station, heat-seal station and blanking station, it gives the bagging apparatus to correspond in proper order to be provided with on each station, open the bagging apparatus, a loading attachment, heat-sealer and conveyer belt, wherein the middle part of conveyer belt is provided with the electronic weighing ware that is used for detecting finished product powder packing weight.

The utility model has the advantages that: the workstation rotates on unable adjustment base, makes the working tape in proper order from the station of going up the bag through filling station, heat-seal station and blanking station, accomplishes dialysis powder filling, wrapping bag heat-seal and blanking transmission work to accomplish the step of weighing to every finished product dialysis powder packing in the transportation finished product wrapping bag in-process of conveyer belt, each station is arranged compactly, and the cooperation is accurate between the station, and production efficiency is high, and the filling is effectual.

Drawings

Fig. 1 is a schematic view of the overall structure of a dialysate filling system according to embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram of a bag feeding station in embodiment 1 of the present application.

Fig. 3 is a schematic structural diagram of a bag opening station in embodiment 1 of the present application.

Fig. 4 is a schematic structural diagram of a filling station in embodiment 1 of the present application.

FIG. 5 is a schematic view showing the structure of a heat-sealing station in example 1 of the present application.

Fig. 6 is a schematic structural diagram of a blanking station in embodiment 1 of the present application.

Fig. 7 is a schematic structural view of an exhaust apparatus according to embodiment 2 of the present application.

Wherein, 1, fixing the base; 11. a work table; 12. a first bag clamping part; 13. a bagging station; 14. a bag opening station; 15. a filling station; 16. a heat-sealing station; 17. a blanking station; 2. a bag feeding device; 21. a first bracket; 211. a placing table; 212. taking a bag opening; 22. a first vacuum chuck; 221. a first cylinder; 23. a clamp arm; 231. a second bag clamping part; 232. a second cylinder; 3. a bag opening device; 31. a second bracket; 32. a movable rod; 33. a second vacuum chuck; 34. driving the cylinder group; 4. a feeding device; 41. a feeding machine; 42. a third support; 43. a measuring hopper; 44. a material guide hopper; 441. a drive member; 5. a heat sealer; 6. a conveyor belt; 61. an electronic weigher; 7. an exhaust device; 71. a mounting seat; 72. a clamping rod; 73. a connecting rod; 74. a support sheet; 75. a slide bar; 76. a spring; 77. a flexible layer; 78. an exhaust groove.

Detailed Description

In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the attached drawings of the specification and specific embodiments.

Example one

The embodiment of the application discloses accurate high-efficient dialysis powder filling system. Referring to fig. 1, the device comprises a fixed base 1 and a workbench 11, wherein the workbench 11 is horizontally and rotatably arranged on the top of the fixed base 1. The edge of the workbench 11 is provided with a first bag clamping portion 12 for clamping the packaging bag, and the first bag clamping portion 12 is uniformly arranged along the circumference of the workbench 11 at intervals. Along the rotation direction of the workbench 11, a bag feeding station 13, a bag opening station 14, a filling station 15, a heat sealing station 16 and a blanking station 17 are sequentially arranged on the edge of the workbench 11 on the fixed base 1.

Wherein, install the driver in the unable adjustment base 1, first driving motor passes through reliable transmission methods such as gear drive, chain drive to order about workstation 11 to rotate on unable adjustment base 1. First bag portion 12 of pressing from both sides includes that the horizontal interval sets up two gripper at workstation 11 edge, and the opening of two gripper is down, and two gripper all open and shut through the inside cylinder control of self to grasp wrapping bag upper edge's both sides. The two mechanical claws can also horizontally slide on the edge of the workbench 11, and an air cylinder is arranged in the workbench 11 and can drive the two mechanical claws to approach or separate from each other.

Referring to fig. 1 and 2, the bag feeding station 13 corresponds to the bag feeding device 2, and in the embodiment of the present application, the bag feeding device 2 includes a first support 21, a first vacuum chuck 22, and a holding arm 23. First support 21 is fixed on unable adjustment base 1 through modes such as welding, bolted connection, and the top of first support 21 is equipped with places platform 211 for the staff stacks the wrapping bag including. The bottom of the placing table 211 is provided with a bag taking opening 212.

The bottom of the first support 21 is fixedly provided with a first cylinder 221 through a vertical bolt, the first vacuum chuck 22 is fixedly arranged at the end part of a piston rod of the first cylinder 221, and the first cylinder 221 acts to drive the first vacuum chuck 22 to vertically lift and suck from the bag taking opening 212 and take out the packaging bag downwards. One end of the holding arm 23 is hinged to the first bracket 21 with its hinge axis horizontal. The other end of the clamping arm 23 is provided with a second bag clamping part 231, the second bag clamping part 231 can adopt a mechanical claw, and the mechanical claw is driven to open and close through an air cylinder on the mechanical claw so as to clamp the packaging bag. The first support 21 is further hinged with a second air cylinder 232, and a piston rod of the second air cylinder 232 is hinged with the clamping arm 23. Through the action of the second cylinder 232, the clamping arm 23 can be driven to rotate, and in cooperation with the action of the second bag clamping part 231 on the clamping arm 23, the first vacuum suction cup 22 can be clamped by the packaging bag adsorbed from the placing table 211 and then transferred to the bag loading station 13, and the packaging bag is transferred to the first bag clamping part 12 on the workbench 11. In other embodiments, the holding arm 23 can also be moved by rotating a plurality of arms to transfer the bag.

Referring to fig. 1 and 3, the bag opening device 3 is correspondingly arranged on the bag opening station 14, the bag opening device 3 comprises a second support 31 and two movable rods 32, the second support 31 is fixed on the fixed base 1, the two movable rods 32 are horizontally slidably mounted on the second support 31, the two movable rods 32 are symmetrically arranged on two sides of the packaging bag, the packaging bag is clamped by the first bag clamping portion 12 on the bag opening station 14, and the second vacuum suction cups 33 are mounted on one sides of the two movable rods 32 close to each other. The second bracket 31 is also fixedly provided with a driving cylinder group 34, and the driving cylinder group 34 is simultaneously connected with the two movable rods 32.

The two movable rods 32 are driven to approach each other by driving the cylinder group 34, so that the second vacuum suction cups 33 on the two movable rods 32 respectively suck the two sides of the packaging bag at the bag opening station 14. Then, the actuating cylinder 34 drives the two movable rods 32 away from each other to open the upper opening of the packaging bag, and simultaneously, the two mechanical claws of the second bag-clamping portion 231 in cooperation with the bag-opening station 14 approach each other to open the upper opening of the packaging bag and maintain the bag-opening state.

Referring to fig. 1 and 4, a feeding device 4 corresponds to the filling station 15, the feeding device 4 includes a feeding machine 41, a third support 42 and a quantitative hopper 43, the third support 42 is fixedly mounted on the fixed base 1, the quantitative hopper 43 is fixedly connected with the third support 42 through bolts and the like, the quantitative hopper 43 is a common device in the industry, and details are not repeated here. The quantitative hopper 43 is located above the filling station 15, and the bottom discharge port opening of the quantitative hopper 43 faces the upper opening of the packaging bag on the filling station 15. The feeding machine 41 is fixed on the ground at one side of the fixed base 1, the feeding machine 41 can be a spiral feeding machine 41, a zigzag feeding machine 41 or the like, in this embodiment, the feeding machine 41 can be a zigzag feeding machine 41, and the discharge port of the feeding machine 41 is located right above the upper feed port of the quantitative hopper 43. The staff drops into the dialysis powder from the feed inlet of material loading machine 41, and material loading machine 41 carries the dialysis powder to the top feed inlet of ration fill 43, and when the wrapping bag on workstation 11 moved to filling station 15, ration fill 43 quantitative control dialysis powder leaked to the wrapping bag of below.

In order to improve the filling effect of the dialysis powder and reduce the scattering of the dialysis powder outside the packaging bag, in the embodiment of the present application, the feeding device 4 further includes a material guiding hopper 44. The material guiding funnel 44 is vertically and slidably installed on the third support 42, the bottom discharge port of the quantitative funnel 43 extends into the top feed port of the material guiding funnel 44, the bottom discharge port opening of the material guiding funnel 44 is smaller than the opening of the packaging bag at the filling station 15, and when the material guiding funnel 44 descends on the third support 42, the lower part of the material guiding funnel 44 can be inserted into the opening of the packaging bag. A driving member 441 for driving the material guiding hopper 44 to vertically lift is installed on the third support 42, the driving member 441 may be an air cylinder, or may also be a screw rod sliding assembly, in this embodiment, the driving member 441 is an air cylinder.

Referring to fig. 1 and 5, a heat sealing machine 5 is correspondingly arranged on the heat sealing station 16, and the heat sealing machine 5 is fixed on the fixing base 1 and used for thermally sealing the upper opening of the packaging bag, which is a common device in the packaging industry and is not described herein again. When the bag in the filling station 15 moves to the heat-sealing station 16 on the table 11, the two grippers of the first bag clamping portion 12 that clamp the bag are moved away from each other, and the upper opening of the bag is pulled tight and closed. When the packaging bag moves to the heat-sealing station 16, the heating sheets on the heat-sealing machine 5 at the two sides of the packaging bag are close to each other and clamp and heat the packaging bag, so that the opening of the packaging bag is subjected to heat-sealing.

In the process of heat sealing of the packaging bag, more air is easy to exist in the packaging bag, so that the volume of a packaged finished product is larger, more volume is occupied during transportation, and the packaging bag is easy to extrude and leak air. In order to solve the problem, in the embodiment of the present application, an exhaust device 7 is arranged below the heat sealing machine 5, the exhaust device 7 includes a mounting seat 71 and two clamping rods 72, the mounting seat 71 is fixedly mounted on the fixed base 1 by bolts, the two clamping rods 72 are parallel to the packaging bag on the heat sealing station 16, and the two clamping rods are symmetrically distributed on two sides of the packaging bag. The end parts of the two clamping rods 72 on the same side are fixedly connected with connecting rods 73, the connecting rods 73 are perpendicular to the clamping rods 72, one ends of the connecting rods 73 far away from the clamping rods 72 are rotatably mounted on the mounting base 71, and a driving assembly (not shown in the figure) for driving the two connecting rods 73 connected with the two clamping rods 72 to synchronously and reversely rotate is arranged on the driving assembly.

In the present embodiment, the driving assembly may include a driving motor and two gears, the two gears are coaxially and fixedly connected to different connecting rods 73 on the hinge shaft connected to the mounting seat 71, and the two gears are engaged with each other. The driving motor is arranged in the mounting seat 71, and an output shaft of the driving motor is in transmission connection with any one connecting rod 73 at a hinge shaft connected with the mounting seat 71. The driving motor is started, the two clamping rods 72 are synchronously close to the lower part of the heat sealing machine 5, and the packaging bag below the heat sealing machine 5 is clamped to discharge partial air in the packaging bag, so that the volume of the finished product is effectively reduced.

Referring to fig. 1 and 6, a conveying belt 6 is arranged right below a blanking station 17, the conveying belt 6 can adopt a belt conveyor, after a first bag clamping portion 12 on a workbench 11 clamps a packaging bag and rotates to the blanking station 17, a mechanical claw on the first bag clamping portion 12 is loosened, and a finished product package falls on the conveying belt 6 and is conveyed to a next operation station. In order to improve the plastic packaging effect of the heat sealing machine 5, the heat sealing machine 5 can be arranged on the blanking station 17 to carry out secondary plastic packaging on the packaging bag, so that the plastic packaging compactness of the finished product packaging is improved.

In this application embodiment, the middle part of conveyer belt 6 still is equipped with the electronic weighing ware 61 that is used for detecting finished product powder packing weight, and through this electronic weighing ware 61, the staff can the weight of every finished product powder packing of transporting backward from conveyer belt 6 of visual observation, conveniently takes off unqualified finished product packing of weight from conveyer belt 6.

Example two

The difference between the second embodiment and the first embodiment is that the exhaust device 7 is different.

Referring to fig. 1, 5 and 7, a heat sealing machine 5 is correspondingly arranged on the heat sealing station 16, in the embodiment of the present application, a support piece 74 is fixedly installed on the connecting rod 73, sliding rods 75 are perpendicularly welded and fixed on the sides of the two clamping rods 72 far away from each other, and the number of the sliding rods 75 on the clamping rods 72 is not less than two. The support plate 74 is provided with a movable hole, the sliding rod 75 is vertically and slidably inserted into the movable hole of the support plate 74, and one end of the sliding rod 75 far away from the support plate 74 penetrates through the movable hole of the support plate 74 and is fixed with a stopper plate to prevent the sliding rod 75 from falling out of the movable hole. The sliding rod 75 is sleeved with a spring 76, one end of the spring 76 abuts against the supporting plate 74, the other end of the spring 76 abuts against the clamping rod 72, and the spring 76 drives the clamping rod 72 and the supporting plate 74 to be away from each other. The support plate 74 is further bonded with a flexible layer 77, the flexible layer 77 is located below the clamping rod 72, and when the flexible layer 77 is unfolded and unstressed, the side wall of the flexible layer 77 away from the support plate 74 is flush with the side wall of the clamping rod 72 away from the support plate 74. In this application embodiment, the flexible layer 77 can only use the sponge, and in other embodiments, the flexible layer 77 can also adopt materials such as a silica gel layer.

After the two clamping rods 72 are close to each other and clamp and exhaust the packaging bag, the two connecting rods 73 continue to rotate, the spring 76 is contracted, the flexible layer 77 is in pressing contact with the packaging bag, the flexible layer 77 can better fit the shape of the powder filled in the packaging bag and compact the powder in the packaging bag, the exhaust effect of the exhaust device 7 is improved, and the volume of the finished product package is further compressed.

In order to enable the flexible layer 77 to be in the process of compacting the packaging bag, gas in the packaging bag can be smoothly discharged from the clamping rods 72, the two clamping rods 72 are vertically arranged on the side walls close to each other, the air discharge grooves 78 are vertically arranged on the side walls of the two clamping rods 72, and a plurality of air discharge grooves 78 are arranged on the clamping rods 72 at equal intervals in the length direction of the clamping rods 72. The air circulation of the clamping position of the clamping rod 72 can be kept during the clamping and exhausting process of the flexible layer 77 to the packaging bag, and meanwhile, the overflow of powder is reduced.

The implementation principle of the accurate high-efficient dialysis powder filling system of this application embodiment is: at the bag feeding station 13, a bag is supplied to the first bag clamping part 12 on the workbench 11 by the bag feeding device 2; then a first driving motor in the fixed base 1 drives the workbench 11 to rotate, so that the first bag clamping part 12 clamping the packaging bag rotates to the bag opening station 14, and the upper opening of the packaging bag is opened by the bag opening device 3; then the workbench 11 continues to rotate, the first bag clamping part 12 is rotated to the filling station 15, and dialysis powder is injected into the packaging bag by the feeding device 4; then, the workbench 11 continues to rotate, the first bag clamping part 12 is rotated to the heat sealing station 16, and the packaging bag is sealed; finally, the workbench 11 rotates to the position that the first bag clamping portion 12 is located at the blanking station 17, the first bag clamping portion 12 loosens the packaging bags, finished dialysis powder packaging falls on the conveying belt 6 to move to the next workshop, in the process of conveying the dialysis powder packaging by the conveying belt 6, the electronic weighing device 61 on the conveying belt 6 finishes weighing each dialysis powder packaging, the workers can conveniently pick out unqualified packages in weight in time, the movement of the packaging bags is finished in the rotating process of the workbench 11, all stations are densely and compactly arranged, the filling process is rapid, and quality problems in the processing process can be effectively controlled.

It should be apparent to those skilled in the art that while the preferred embodiments of the present invention have been described, additional variations and modifications to these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the equivalent technology of the machine of the present invention, the present invention is also intended to encompass such modifications and variations.

Claims (8)

1. The utility model provides a high-efficient dialysis powder filling system of precision which characterized in that includes:

the packaging bag clamping device comprises a fixed base (1) and a workbench (11) rotatably installed on the fixed base (1), wherein a first driving motor used for driving the workbench (11) to rotate is arranged in the fixed base (1), a plurality of first bag clamping portions (12) used for clamping packaging bags are uniformly arranged at the edge of the workbench (11) along the circumferential direction of the workbench, and a bag feeding station (13), a bag opening station (14), a filling station (15), a heat sealing station (16) and a blanking station (17) are sequentially arranged at the edge of the workbench (11) along the rotating direction of the workbench (11);

the bag feeding device (2) is fixed on the fixed base (1) and corresponds to the bag feeding station (13), and the bag feeding device (2) is used for supplying the packaging bags to the first bag clamping part (12) at the bag feeding station (13);

the bag opening device (3) is fixed on the fixed base (1) and corresponds to the bag opening station (14), and the bag opening device (3) is used for opening the upper opening of the packaging bag;

the feeding device (4) is fixed on the fixed base (1) and corresponds to the filling station (15), and the feeding device (4) is used for quantitatively injecting powder into an upper opening of the packaging bag;

the heat sealing machine (5) is fixed on the fixed base (1) and corresponds to the heat sealing station (16), and the heat sealing machine (5) is used for carrying out hot plastic sealing on the upper opening of the packaging bag;

the conveying belt (6) is arranged on one side of the fixed base (1) and located right below the blanking station (17), and an electronic weighing device (61) used for detecting the packaging weight of finished powder is arranged in the middle of the conveying belt (6).

2. The precise and efficient dialysis powder filling system according to claim 1, wherein the bag feeding device (2) comprises:

the packaging bag placing device comprises a first support (21), wherein the first support (21) is fixedly arranged on a fixed base (1), a placing table (211) used for stacking packaging bags is arranged at the top of the first support (21), and a bag taking opening (212) is formed in the bottom of the placing table (211);

the first vacuum chuck (22), the first vacuum chuck (22) is positioned under the bag taking opening (212), and a first air cylinder (221) for driving the first vacuum chuck (22) to vertically lift is arranged on the first support (21);

centre gripping arm (23), centre gripping arm (23) rotate to set up on first support (21), the expansion end of centre gripping arm (23) is equipped with the second that is used for the centre gripping wrapping bag and presss from both sides bag portion (231), be provided with on first support (21) and be used for ordering about centre gripping arm (23) pivoted second cylinder (232), centre gripping arm (23) be used for with last wrapping bag centre gripping of vacuum chuck removes first bag portion (12) department of pressing from both sides to bag station (13).

3. The precise and efficient dialysis powder filling system according to claim 1, wherein the bag opening device (3) comprises a second support (31) and two movable rods (32), the two movable rods (32) are horizontally slidably arranged on the second support (31), the two movable rods (32) are symmetrically arranged on two sides of the first clamping portion of the bag opening station (14), a second vacuum suction cup (33) is arranged on each side of the two movable rods (32) which are seen from each other, and a driving cylinder group (34) for driving the two movable rods (32) to reversely and synchronously move is arranged on the second support (31).

4. The precise and efficient dialysis powder filling system according to claim 1, wherein the feeding device (4) comprises a feeding machine (41), a third support (42) and a quantitative hopper (43), the third support (42) is fixedly arranged on the fixed base (1), the quantitative hopper (43) is fixedly arranged on the third support (42), the feeding machine (41) is positioned on one side of the fixed base (1), an upper opening of the quantitative hopper (43) is positioned right below an outlet of the feeding machine (41), and a lower opening of the quantitative hopper (43) is positioned right above the filling station (15).

5. The precise and efficient dialysis powder filling system according to claim 4, wherein the feeding device (4) further comprises a material guiding hopper (44), the discharge port of the quantitative hopper (43) extends into the feed port of the material guiding hopper (44), the discharge port of the material guiding hopper (44) can be inserted into the upper opening of the packaging bag on the filling station (15), and a driving member (441) for driving the material guiding hopper (44) to vertically lift is arranged on the third support (42).

6. The precise and efficient dialysis powder filling system according to any one of claims 1 to 5, wherein an exhaust device (7) is arranged below the heat sealing machine (5), the exhaust device (7) comprises an installation seat (71) and two clamping rods (72), the two clamping rods (72) are arranged below the heat sealing machine (5) in parallel and symmetrically, a connecting rod (73) is connected to the same end of each clamping rod (72), the end of the connecting rod (73) far away from the clamping rods (72) is rotatably arranged on the installation seat (71), and a driving assembly for driving the two connecting rods (73) to synchronously and reversely rotate is arranged on the installation seat (71).

7. The precise and efficient dialysis powder filling system according to claim 6, wherein a support sheet (74) is fixedly installed on the connecting rod (73), a sliding rod (75) is vertically fixed on one side, away from each other, of each of the two clamping rods (72), the sliding rod (75) is vertically slidably arranged on the support sheet (74), a spring (76) for driving the clamping rods (72) to be away from the support sheet (74) is sleeved on the sliding rod (75), a flexible layer (77) is fixedly arranged on the side wall, close to the clamping rods (72), of the support sheet (74), the flexible layer (77) is located below the support sheet (72), and the side wall, away from the clamping rods (74), of the flexible layer (77) is flush with the side wall, away from the support sheet (74), of the clamping rods (72).

8. The precise and efficient dialysis powder filling system according to claim 7, wherein the two clamping rods (72) have vent grooves (78) vertically formed on their side walls adjacent to each other.

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