A powder chamber filling system for a powder-liquid double chamber bag

Abstract

The present invention relates to a powder-liquid double-chamber bag powder cavity filling system, belonging to the technical field of powder-liquid double-chamber bag manufacturing machinery, and the technical scheme thereof includes a frame, a circulating conveyor line arranged on the frame, a bag hanging station, a bag cleaning station, a bag cutting station, a bag opening and inflating station, a powder filling station, and a bag output station arranged in sequence on the circulating conveyor line, and the circulating conveyor line is provided with multiple groups, each group of multiple bag transfer fixtures for hanging powder-liquid double-chamber bags and at least one group, each group of multiple powder cavity filling weighing devices for sampling and weighing the filling amount of the powder cavity, and the bag transfer fixture and the powder cavity filling weighing device move with the circulation of the circulating conveyor line. The present invention can realize the automatic filling of the powder cavity of the powder-liquid double-chamber bag, and can detect the filling amount of powder online during the process to ensure the quality of the shipped products.

Description

Technical Field

[0001] The invention relates to the technical field of powder-liquid double-chamber bag manufacturing machinery, in particular to a powder-liquid double-chamber bag powder cavity filling system. Background Art

[0002] At present, in the market of large-volume infusion, glass bottle infusion is gradually withdrawing from the market, and more and more hospitals are using plastic bottles and soft bags. Among non-PVC infusion soft bags, double-chamber bags are a new packaging method that has recently emerged. Powder-liquid double-chamber bag large-volume infusion is also called ready-to-mix infusion in my country. This type of infusion is to package powdered drugs and injection solvents together, connect them in a certain way, and connect the two substances by rotating, squeezing, breaking, etc. during use. After mixing them, they can be used. The traditional mixing method requires needle puncture, and its drug safety is not very high.

[0003] Traditional powder cavity filling machines for powder-liquid double chamber bags either cannot realize powder cavity filling of soft bags or cannot realize full-automatic production, which cannot meet the production requirements of powder-liquid double chamber bag production lines.

[0004] The existing Chinese invention patent with application publication number CN101879951A can be referenced, which discloses a powder-liquid double-chamber bag powder cavity filling machine, including a frame, a conveying line is provided on one side of the frame, a conveying fixture is fixed on the conveying line, a main driving device is installed on the frame, and a bag loading station, a bag cleaning station, a bag cutting station, a bag opening station, a filling station, a welding station and a bag unloading station are arranged on the frame and above the main driving device in sequence. This technical solution basically discloses the basic process of powder cavity filling, but does not disclose a specific device solution.

[0005] You can also refer to the Chinese invention patent with the authorization announcement number CN103910321B, which discloses a bag-filling infusion product filling and sealing equipment, including a frame body, a bag receiving bag opening and blowing mechanism, a bag opening and sealing filling mechanism, a tail edge welding mechanism, and a bag output mechanism arranged in sequence on the frame body, which are sufficient to realize the continuity of functions through the annular synchronous belt main drive mechanism and the bag-filling infusion bag carrier installed on the annular synchronous belt. The bag receiving bag opening and blowing mechanism uses vacuum to layer the co-extruded film at the opening of the non-hot pressing area at the tail of the bag body, and uses the blowing pressure of the clean gas to eliminate the stress of the co-extruded film sticking together; after the bag is opened, the infusion bag is transported to the filling station, the tail welding station, and the bag output station in sequence through the main drive mechanism to complete the corresponding filling, welding, and output actions. This scheme mainly records the filling of the liquid medicine in the liquid cavity of the powder-liquid double-chamber bag, but when it is applied to the powder filling line, the filling of the powder cannot be realized, and the quality of the powder filling cannot be guaranteed. Summary of the invention

[0006] The purpose of the present invention is to provide a powder-liquid double-chamber bag powder cavity filling system, which can realize the automatic filling of the powder cavity of the powder-liquid double-chamber bag, and can detect the powder filling amount online during the process to ensure the quality of the factory products.

[0007] The above-mentioned inventive object of the present invention is achieved through the following technical scheme: a powder-liquid double-chamber bag powder cavity filling system, comprising a frame, a circulating conveyor line arranged on the frame, a bag hanging station, a bag cleaning station, a bag cutting station, a bag opening and inflation station, a powder filling station, and a bag output station arranged in sequence on the circulating conveyor line, and the circulating conveyor line is provided with multiple groups, each group of multiple bag transfer fixtures for hanging powder-liquid double-chamber bags and at least one group, each group of multiple powder cavity filling weighing devices for sampling and weighing the powder cavity filling amount, and the bag transfer fixture and the powder cavity filling weighing device move with the circulation of the circulating conveyor line.

[0008] The present invention is further configured as follows: the bag hanging station includes a freely rotating mechanical arm, a mounting frame fixed on the mechanical arm, a plurality of first vacuum suction cup assemblies arranged on both sides of the mounting frame, and a plurality of second mouth tube clamping assemblies corresponding one to one to the first vacuum suction cup assemblies; the powder-liquid double-chamber bag is horizontally unfolded, the bag body is adsorbed by the first vacuum suction cup assembly, and the mouth tube is clamped by the second mouth tube.

[0009] The present invention is further configured as follows: the bag cleaning station includes a cleaning chamber covered on the circulating conveyor line, the cleaning chamber is provided with an ion generating device, the cleaning chamber is provided with a negative pressure suction device, and the bag transfer fixture carrying the powder-liquid double-chamber bag passes through the bottom of the cleaning chamber.

[0010] The present invention is further configured as follows: the bag cutting station includes a cutting electric cylinder erected above the circulating conveyor line, a fixed frame driven by the cutting electric cylinder to move in a direction perpendicular to the bag transfer direction, and a plurality of cutting claw cylinders installed below the fixed frame, and horizontal cutting components relative to each other are arranged on both sides of the circulating conveyor line. The horizontal cutting components move relative to each other to cut the waste edges of the powder-liquid double-chamber bag, and the waste edges are clamped from above by the cutting claw cylinders.

[0011] The present invention is further configured as follows: the bag opening and inflation station includes a plurality of second vacuum suction cup assemblies relatively arranged on both sides of the circulating conveyor line and a plurality of bag opening and inflation assemblies clamped above the circulating conveyor line, the second vacuum suction cup assemblies relatively moving and adsorbed on both sides of the bag body to separate the incision; the bag opening and inflation assembly includes an inflation needle and an inflation clamping claw cylinder moving up and down in the vertical direction, the two clamping claws of the inflation clamping claw cylinder are configured with a semi-arc groove on one side facing each other, so that when the two clamping claws clamp and seal the bag incision, the inflation needle is accommodated between the two clamping claws.

[0012] The present invention is further configured as follows: the powder filling station includes a powder storage bin, a first bag opening device, an electrostatic eliminator and a sealing device, the first bag opening device is arranged below the powder storage bin to open the powder cavity of the powder-liquid double-chamber bag by vacuum adsorption, the electrostatic eliminator includes a first ion gun and an air outlet nozzle, the muzzle of the first ion gun and the air outlet of the air outlet nozzle are both facing the incision of the powder cavity, so as to blow ion wind into the powder cavity while the powder cavity is being filled with powder, and the sealing device is used to hot-press and seal the incision of the powder cavity after powder filling.

[0013] The present invention is further configured as follows: the sealing device includes a sealing and inflating component and a hot pressing component, the sealing and inflating component includes a gas storage bottle, a buffer tank, a main inflating pipe, a flow meter, a sub-inflating pipe, a mixing tank, a second ion gun, a pneumatic diaphragm valve, a nitrogen filling needle, the gas storage bottle is connected to the buffer tank, one end of the main inflating pipe is connected to the buffer tank, and the other end is connected to the flow meter, the flow meter is connected to the sub-inflating pipe, the outlet of the sub-inflating pipe is connected to the mixing tank, the second electron gun introduces ions into the mixing pipe, the outlet of the mixing tank is connected to the nitrogen filling needle, and the sub-inflating pipe is also provided with a pneumatic diaphragm valve; the hot pressing component includes a relatively arranged A first pressing head is arranged on both sides of the conveying line and is driven by force to move relative to the bag transfer direction, and a second pressing head is arranged on both sides of the circulating conveying line and is driven by force to move relative to the bag transfer direction. The first pressing head and the second pressing head move linearly up and down synchronously in the vertical direction, and the surface of the first pressing head is configured with a makeshift groove for the nitrogen filling needle; a second bag opening suction cup is also arranged on both sides of the circulating conveying line, and the second bag opening suction cup is used for vacuum adsorbing both sides of the bag body to open the powder cavity incision. The second bag opening suction cup can move up and down independently in the vertical direction while moving synchronously with the first pressing head and the second pressing head in the vertical direction.

[0014] The present invention is further configured as follows: the bag output station includes a bag tail clamping assembly arranged above the circulating conveyor line and a bag head pushing assembly arranged below the circulating conveyor line, the bag tail clamping assembly includes a transverse electric cylinder, and a plurality of bag output clamping claw cylinders driven to move by the transverse electric cylinder for clamping the bag tail, the bag head pushing assembly includes a pushing frame, a plurality of top plates and a pushing cylinder, the plurality of top plates correspond one-to-one to a plurality of bag transfer fixtures in each group, the pushing frame is driven by the pushing cylinder to move back and forth, so as to push the mouth tube stuck on the bag transfer fixture to be detached through the top plate, thereby cooperating with the bag tail clamping assembly to detach the powder-liquid double-chamber bag from the bag transfer fixture.

[0015] The present invention is further configured as follows: a first vacuum switch is connected to the vacuum pipeline of the second bag opening suction cup, and the first vacuum switch is connected to the control main board. When the vacuum pressure value of the first vacuum switch meets a preset threshold value, it is judged that the powder-liquid double-chamber bag corresponding to the first vacuum switch is normally filled with nitrogen, otherwise it is judged that the second vacuum switch is not filled with nitrogen, and the bag output station is controlled to distinguish between products that meet the standards and products that do not meet the standards according to the detection result of the first vacuum switch.

[0016] The present invention is further configured as follows: the powder chamber filling and weighing device includes a material collecting part, a supporting part and an installing part, the material collecting part includes a removable weighing cup, the supporting part supports the weighing cup, and the installing part is connected to the supporting part and fixedly installed on the circulating conveying line.

[0017] In summary, the beneficial technical effects of the present invention are:

[0018] 1. The present invention can complete the automatic subpackaging task of the powder cavity of the powder-liquid double-chamber bag by sequentially arranging the bag hanging station, bag cleaning station, bag cutting station, bag opening and filling station, powder filling station, and bag output station on the circulating conveyor line, the bag transfer fixture and the powder cavity filling weighing device on the circulating conveyor line, and realize the online sampling detection of the powder filling amount, thereby improving the production efficiency and ensuring the quality of the factory-produced products of the powder-liquid double-chamber bag;

[0019] 2. Before the powder-liquid double-chamber bag enters the powder filling station, inert gas is blown into the bag through the bag opening and inflation station to drive away the residual oxygen in the bag, which is conducive to smooth bag opening and reduces the oxidation effect of oxygen on the powder in the powder chamber, thus ensuring the quality of the powder;

[0020] 3. At the powder filling station, the hot pressing component and the sealing and filling component can be hot pressed while filling with nitrogen through a better structural design, further protecting the powder-liquid double chamber bag from residual oxygen and improving the filling quality of the powder cavity;

[0021] 4. By adding a vacuum switch detection to the sealing and inflation component of the powder filling station, it can be determined whether the powder-liquid double-chamber bag is filled with nitrogen during sealing. If the vacuum pressure value of the vacuum switch is less than the preset threshold, the surface bag body is not opened, and the system can control the subsequent bag output station to remove the powder-liquid double-chamber bags that do not meet the standards. At the same time, it can remind the staff to check the filling port corresponding to the vacuum switch that does not meet the vacuum pressure value, eliminate the fault, and ensure the accuracy of powder chamber filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a system layout diagram of each workstation in an embodiment of the present invention.

[0023] Figure 2It is a structural schematic diagram of the working state of the bag hanging station in an embodiment of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the working state of the bag washing station in an embodiment of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the working state of the bag cutting station in an embodiment of the present invention.

[0026] Figure 5 It is a schematic structural diagram of a bag opening and inflation station according to an embodiment of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the working state of the bag opening and inflation station in an embodiment of the present invention.

[0028] Figure 7 It is a schematic diagram of the cooperation between the inflation needle and the two clamping jaws of the inflation clamping jaw cylinder according to an embodiment of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the filling part of the powder filling station according to an embodiment of the present invention.

[0030] Fig. 9 yes Figure 8 An enlarged schematic diagram of part A showing the structure of the static eliminator.

[0031] Fig.10 It is a schematic diagram of the working state of the powder filling station during filling according to an embodiment of the present invention.

[0032] Fig.11 It is a schematic structural diagram of the sealing, inflation and incision hot pressing of the powder filling station in an embodiment of the present invention.

[0033] Fig.12 yes Fig.11 An enlarged schematic diagram of part B showing the structure of the hot pressing component and the partially sealed and inflated component.

[0034] Fig.13 It is a structural schematic diagram of the sealing and inflation component and the second bag opening device structure of an embodiment of the present invention.

[0035] Fig.14 It is a schematic structural diagram of a bag output station according to an embodiment of the present invention.

[0036] Fig.15 It is a schematic structural diagram of a bag tail clamping assembly of a bag output station according to an embodiment of the present invention.

[0037] Fig.16 It is a schematic structural diagram of a guide assembly in a bag tail clamping assembly of a bag output station according to an embodiment of the present invention.

[0038] Fig.17 It is a structural schematic diagram of the working state of the bag output station in an embodiment of the present invention.

[0039] Fig.18 It is a structural schematic diagram of a powder chamber filling and weighing device according to an embodiment of the present invention.

[0040] Fig.19 It is a structural schematic diagram of the material collecting part of the powder chamber filling and weighing device according to an embodiment of the present invention.

[0041] Fig. 20 It is a structural schematic diagram of the installation part of the powder chamber filling and weighing device according to an embodiment of the present invention.

[0042] Reference numerals:

[0043] 1. Frame; 2. Circulation conveyor line; 20. Light inspection station;

[0044] 3. Bag hanging station; 31. Robotic arm; 32. Mounting frame; 33. First vacuum suction cup assembly; 331. First vacuum suction nozzle; 34. Mouth tube clamping assembly; 341. Pneumatic finger;

[0045] 4. Bag cleaning station; 41. Cleaning chamber; 42. Ion generator; 43. Negative pressure suction device;

[0046] 5. Bag cutting station; 51. Cutting electric cylinder; 52. Fixed frame; 53. Cutting jaw cylinder; 54. Horizontal cutting assembly; 541. Cutting frame; 542. Cutting cylinder;

[0047] 6. Bag opening and inflating station; 61. Second vacuum suction cup assembly; 611. Second vacuum suction nozzle; 612. Driving cylinder; 62. Bag opening and inflating assembly; 621. Main lifting cylinder; 622. Auxiliary lifting cylinder; 623. Movable rod; 624. Guide kit; 625. Inflating needle; 626. Inflating claw cylinder; 627. Support plate; 6261. Clamping claw; 6262. Semi-arc groove;

[0048] 7. Powder filling station; 71. Powder storage bin; 711. First bracket; 72. Filling funnel; 721. Auxiliary cylinder; 73. Workbench; 74. First bag opening device; 741. Main cylinder A; 742. First bag opening suction cup; 743. Limit block; 7431. Limit groove; 7432. Limit plate; 75. Static elimination device; 751. First ion gun; 752. Air inlet pipe; 753. Air outlet nozzle; 76. Sealing device; 761. Sealing and inflating assembly; 7611. Main inflating pipe; 7612. Buffer tank; 7613. Flow meter; 7614. Gas storage bottle; 761 5. Pressure regulating valve; 7616. Gas charging pipe; 7617. Mixing tank; 7618. Second ion gun; 7619. Pneumatic diaphragm valve; 762. Hot pressing assembly; 7621. Main cylinder C; 7622. First cylinder; 7623. First pressure head; 7624. Make way slot; 7625. Second cylinder; 7626. Second pressure head; 77. Second bracket; 771. Main cylinder B; 78. Nitrogen filling needle; 79. Second bag opening device; 791. Main cylinder D; 792. Second cylinder D; 793. Second bag opening suction cup; 794. First vacuum switch; 795. Control main board;

[0049] 8. Bag output station; 81. Bag tail clamping assembly; 811. Horizontal electric cylinder; 812. Bag output clamping cylinder; 813. First mounting plate; 814. Second mounting plate; 815. Lifting cylinder; 816. Guide assembly; 8161. Guide sleeve; 8162. Guide column; 8163. Third mounting plate; 8164. Fourth mounting plate; 82. Output conveyor belt; 83. Waste collection box; 84. Bag head pushing assembly; 841. Pushing frame; 842. Top plate; 8421. Arc-shaped top groove; 843. Pushing cylinder;

[0050] 9. Bag transfer fixture; 91. Main body; 92. Positioning pin; 93. Mouth tube positioning plate; 931. Card slot;

[0051] 10. Powder chamber loading and weighing device; 101. Aggregate section; 1011. Support member; 1012. Weighing cup; 1013. Support ring; 1014. Connecting rod; 102. Support section; 1021. Support rod; 1022. Support block; 1023. Connecting hole; 1024. Positioning pin; 1025. Mounting groove; 1026. Sleeve ring; 1027. Horizontal axis; 1028. Bolt member; 103. Mounting section; 1031. Mounting plate; 1032. First connecting plate; 1033. Second connecting plate; 1034. Auxiliary sliding block; 1035. Groove; 1036. Bump; 1037. Opening; 1038. Sliding arm. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0053] refer to Figure 1 The powder-liquid double-chamber bag has a liquid cavity and a powder cavity. The powder cavity filling is located after the liquid cavity filling. After the liquid cavity filling is completed, the powder-liquid double-chamber bag needs to enter the light inspection station 20 for light inspection to determine whether the liquid filling amount in the powder-liquid double-chamber bag is qualified. After the light inspection is qualified, the powder-liquid double-chamber bag enters the powder filling system for powder filling.

[0054] refer to Figure 1 The present invention discloses a powder-liquid double-chamber bag powder cavity packaging system, comprising a frame 1, a circulating conveyor line 2 arranged on the frame 1, a bag hanging station 3, a bag cleaning station 4, a bag cutting station 5, a bag opening and inflation station 6, a powder filling station 7, and a bag output station 8 are sequentially arranged on the circulating conveyor line, and a bag transfer fixture 9 for hanging the powder-liquid double-chamber bag is arranged on the circulating conveyor line 2. The bag transfer fixture 9 transfers the powder-liquid double-chamber bag to the above-mentioned various stations as the circulating conveyor line 2 circulates, thereby completing the powder filling task of the powder-liquid double-chamber bag.

[0055] Continue to refer Figure 1 The circulating conveyor line 2 is driven by a motor and a sprocket, and the bag transfer fixtures 9 are installed on the chain at equal intervals. In this embodiment, every four bag transfer fixtures are set as a group. Fig.15 As shown, the bag transfer fixture 9 mainly includes a body 91, a positioning pin 92 and a mouth tube positioning plate 93. The bag tail of the powder-liquid double chamber bag is hung on the positioning pin 92 through two positioning holes, and the mouth tube of the bag head is engaged in the card slot 931 constructed on the mouth tube positioning plate 93, so that the powder-liquid double chamber bag can be stably transferred.

[0056] refer to Figure 2 The bag hanging station 3 is arranged at the starting end of the circulating conveyor line 2, and includes a mechanical arm 31, which can rotate 360 ​​degrees. The end of the mechanical arm 31 is fixedly connected to a mounting frame 32, which is rectangular. Four groups of first vacuum suction cup assemblies 33 and four groups of mouth tube clamping assemblies 34 are hoisted on both sides of the mounting frame 32 through plates. The first vacuum suction cup assemblies 33 and the mouth tube clamping assemblies 34 are arranged at equal intervals along the length direction of the mounting frame 32. Each group of first vacuum suction cup assemblies 33 includes four first vacuum suction nozzles 331, which are used to absorb the surface of the bag body of the powder-liquid double-chamber bag. Each first vacuum suction nozzle 331 has the ability to elastically expand and contract in the direction of its own axis, which is mainly achieved by a spring; each group of mouth tube clamping assemblies 34 includes a pneumatic finger 341, and the two clamping claws of the pneumatic finger 341 can clamp the mouth tube. The mechanical arm 31 can grab four powder-liquid double-chamber bags at one time for light inspection and can synchronously install the four powder-liquid double-chamber bags on the bag transfer fixture 9.

[0057] refer to Figure 3The bag cleaning station 4 includes a cleaning bin 41 covered on the circulating conveying line, the cleaning bin 41 is provided with an ion generator 42, and the cleaning bin 41 is provided with a negative pressure suction device 43. The bag transfer fixture 9 carrying the powder-liquid double-chamber bag passes through the cleaning bin 41, and the ion generator 42 generates ions in the cleaning bin 41. The ions conduct electricity to clean the fiber attached to the waste edge of the powder-liquid double-chamber bag to be cut, and then the fiber is sucked away by the negative pressure suction device 43, so as to ensure the cleanliness of the powder cavity of the powder-liquid double-chamber bag when cutting the edge at the subsequent bag cutting station 5.

[0058] refer to Figure 4 The bag cutting station 5 mainly includes a cutting electric cylinder 51 set up above the circulating conveyor line 2. The movement direction of the cutting electric cylinder 51 is perpendicular to the transfer direction of the powder-liquid double-chamber bag. A fixed frame 52 is fixed under the slide of the cutting electric cylinder 51. Four cutting claw cylinders 53 are installed on the fixed frame 52 for clamping the tail edge to be cut of the powder-liquid double-chamber bag above the bag transfer fixture 9. The tail edge to be cut has a width of about 1 cm. Horizontal cutting components 54 are arranged opposite to each other on both sides of the circulating conveyor line 2. The horizontal cutting component 54 includes a cutting frame 541 and a cutting cylinder 542. The cutting cylinder 542 is connected to the back of the cutting frame 541 to drive the cutting frame 541 to move forward and backward in the horizontal direction. The cutting frames 541 on both sides move relative to each other, and the cutters in the cutting frames 541 cut the tail edge to be cut of the powder-liquid double-chamber bag; after cutting, the cutting electric cylinder 51 drives the cutting claw cylinder 53 to move outward. After reaching the specified position, the cutting claw cylinder 53 discards the clamped waste edge that has been cut into the waste edge box arranged below.

[0059] refer to Figure 5 and Figure 6 The bag opening and filling station 6 mainly includes four second vacuum suction cup assemblies 61 respectively fixedly installed on both sides of the circulating conveyor line 2 and four bag opening and filling assemblies 62 erected above the circulating conveyor line 2. The second vacuum suction cup assembly 61 includes a second vacuum suction nozzle 611 and a driving cylinder 612. The driving cylinder 612 drives the second vacuum suction nozzle 611 to move horizontally in a direction perpendicular to the transfer direction of the powder-liquid double-chamber bag, so that the second vacuum suction nozzle 611 is respectively adsorbed on both sides of the powder-liquid double-chamber bag. When the two second vacuum suction nozzles 611 opposite to each other move away from each other synchronously, the powder chamber is opened.

[0060] refer to Figure 5 and Figure 6The bag opening and inflation assembly 62 includes a main lifting cylinder 621 and an auxiliary lifting cylinder 622, a movable rod 623, a guide kit 624, an inflation needle 625 for inflating nitrogen, and an inflation claw cylinder 626 for closing the tail of the powder-liquid double-chamber bag. The main lifting cylinder 621 and the auxiliary lifting cylinder 622 are fixed in a vertical posture through two support plates 627. The piston end of the auxiliary lifting cylinder 622 located directly below the main lifting cylinder 621 is fixedly connected to the movable rod 623. The guide kit 624 is fixedly connected to the upper surface of the movable rod 623 for guiding in the vertical direction. The movable rod 623 is in a horizontal posture and is located between the two jaws 6261 of the inflation claw cylinder 626. The inflation needle 625 is fixedly connected to the movable rod 623 in a vertical posture. Combined with Figure 7 As can be seen, the two clamping jaws 6261 of the inflation clamping jaw cylinder 626 are configured with a semi-arc groove 6262 on the side facing each other, for the inflation needle 625 to pass through. However, after the second vacuum suction nozzles 611 on both sides suck the bag films on both sides of the powder cavity of the powder-liquid double-chamber bag and open the powder cavity opening, the inflation needle 625 extends into the powder cavity, and then the inflation clamping jaw cylinder 626 drives the two clamps to close. After closing, the inflation needle 625 is just located in the circular groove formed by the two semi-arc grooves 6262. This design does not affect the normal filling of nitrogen into the inflation needle 625, and ensures that the powder cavity is sealed to a certain extent, so that the nitrogen filled into the powder cavity drives out all the air, avoiding the oxidation of the powder due to the participation of oxygen after filling.

[0061] refer to Figure 8 and Fig. 9 The powder filling station 7 includes a powder storage bin 71, which is fixed to the top of the circulating conveyor line 2 by a first bracket 711. At least one filling funnel 72 is provided at the bottom of the powder storage bin 71. The powder in the powder storage bin 71 is filled into the powder cavity of the double-chamber bag through the filling funnel 72. Fig.10 It can be seen that the filling funnel 72 is driven to move up and down by the auxiliary cylinder 721 located below it. Before the powder-liquid double-chamber bag enters the powder filling station 7, the filling funnel 72 rises to a position higher than the top of the powder-liquid double-chamber bag. When filling begins, the auxiliary cylinder 721 drives the filling funnel 72 to move downward to fill the powder chamber.

[0062] Continue to refer Figure 8 and Fig. 9 A first bag opening device 74 and a static eliminator 75 are arranged on a workbench 73 below the filling funnel 72. The static eliminator 75 is located above the first bag opening device 74. The powder cavity of the double-chamber bag is opened to both sides by the first bag opening device 74 before filling the powder. The static eliminator 75 removes static electricity from the powder falling into the powder-liquid double-chamber bag, which can prevent the powder carrying ions from being adsorbed on the incision of the cavity of the double-chamber bag powder due to static electricity, so that the welding quality is higher when the bag tail of the powder-liquid double-chamber bag is hot-melt sealed later.

[0063] refer to Fig. 9 The first bag opening device 74 includes two main cylinders A741 correspondingly arranged under each filling funnel 72. The two main cylinders A741 are relatively arranged on both sides of the circulating conveying line 2 along a direction perpendicular to the transfer direction of the powder-liquid double-chamber bag. The cylinder shafts of the two main cylinders A741 are fixedly connected with first bag opening suction cups 742. The main cylinders A741 are driven to make the two first bag opening suction cups 742 approach and move away from each other. During the approach process, the two first bag opening suction cups 742 are adsorbed on both sides of the bag film of the powder-liquid double-chamber bag by their respective sides. During the moving away process, the two first bag opening suction cups 742 open the powder cavity of the double-chamber bag, thereby ensuring that the medicine powder can fall into the double-chamber bag smoothly.

[0064] refer to Fig. 9 and Fig.10 Furthermore, a limiting block 743 is fixed to the piston end of the main cylinder A741, and a through hole is opened on the limiting block 743 for the cylinder shaft to pass through horizontally. A limiting groove 7431 is formed on the side of the limiting block 743 facing the circulating conveyor line 2, and the limiting groove 7431 is arranged along the vertical direction of the limiting block 743. The groove walls on both sides of the limiting groove 7431 extend vertically toward the limiting groove 7431 to form two limiting plates 7432, and a gap is left between the two limiting plates 7432 for the cylinder shaft to pass through, so that after the powder filling is completed, the cylinder shaft drives the first bag opening suction cup 742 to be retracted into the limiting groove 7431, and under the stopping action of the limiting plate 7432, the powder-liquid double-chamber bag is separated from the first bag opening suction cup 742, and then the powder-liquid double-chamber bag is transported to the next workstation through the circulating conveyor line 2.

[0065] Continue to refer Fig. 9 and Fig.10 The static elimination device 75 includes a first ion gun 751 provided on each main cylinder A741 on one side of the corresponding circulation conveying line 2, and the first ion gun head is fixed on the top of the main cylinder A741 through a plate. One end of the first ion gun head is connected to an ion generator, and the other end is arranged in an inclined posture toward the bottom of the filling funnel 72. Each first ion gun head is equipped with an air inlet pipe 752, and one end of the air inlet pipe 752 is provided with an air outlet nozzle 753 in the same direction as the first ion gun head. The ions generated at the first ion gun head are blown to the incision of the powder chamber of the powder-liquid double-chamber bag through the air outlet nozzle 753 to neutralize the ions carried by the powder, so as to prevent the powder from being adsorbed on the incision of the powder-liquid double-chamber bag due to static electricity, resulting in the inability to seal the incision of the powder-liquid double-chamber bag tightly during subsequent hot pressing and sealing.

[0066] refer to Fig.11 and Fig.12After the powder-liquid double chamber bag is filled with powder, it is transported to the sealing device 76 arranged downstream. The sealing device 76 includes a sealing and inflating component 761 and a hot pressing component 762. The sealing and inflating component 761 is fixedly installed directly above the hot pressing component 762 through the second bracket 77. Among them, the sealing and inflating component 761 includes a main inflating pipe 7611, one end of the main inflating pipe 7611 is connected to a buffer tank 7612, and the buffer tank 7612 can ensure the flow and pressure stability of nitrogen in the main inflating pipe 7611. The buffer tank 7612 is connected to a gas storage bottle 7614, and nitrogen is stored in the gas storage bottle 7614. The gas storage bottle 7614 introduces nitrogen into the buffer tank, and adjusts the gas supply pressure through a pressure regulating valve 7615; the other end of the main inflating pipe 7611 is connected to a flow meter 7613, and the flow meter 7613 is fixedly installed on the second bracket 77 to control the flow of nitrogen.

[0067] The other end of the flow meter 7613 is connected to a sub-inflating pipe 7616, each sub-inflating pipe 7616 is connected to a mixing tank 7617, and the outlet of the mixing tank 7617 is connected to a nitrogen filling needle 78. A main cylinder B771 is provided on the second bracket 77 corresponding to the position of each nitrogen filling needle 78. The main cylinder B771 drives the nitrogen filling needle 78 to extend into or out of the powder chamber of the double-chamber bag. Each main cylinder B771 can work independently without affecting each other.

[0068] The mixing tank 7617 is in the shape of a bullet head, and a second ion gun 7618 is arranged on the mixing tank 7617. One end of the second ion gun 7618 is connected to an ion generator, and the other end is inserted into the mixing tank 7617, so that the nitrogen in the gas distribution tube 7616 can carry ions into the powder chamber of the double-chamber bag to neutralize the residual ions on the powder, thereby further ensuring that there is no residual powder at the incision of the double-chamber bag.

[0069] A pneumatic diaphragm valve 7619 is provided on the sub-inflation pipe 7616 between the mixing tank 7617 and the flow meter 7613. The pneumatic diaphragm valve 7619 mainly controls the opening and closing of the sub-inflation pipe 7616, thereby controlling the nitrogen filling needle 78 to inflate the double-chamber bag.

[0070] Since the mixing tank 7617, the nitrogen filling needle 78 and the second bracket 77 are all made of metal, it is worth noting that if the mixing tank 7617 and the nitrogen filling needle 78 are directly fixed on the second bracket 77, most of the ions in the mixing tank 7617 and the nitrogen filling needle 78 will be conducted away from the second bracket 77, making the ions carried by the nitrogen insufficient to neutralize the ions remaining on the powder, causing part of the powder to still be adsorbed on the incision of the double-chamber bag. For this reason, a polyfluoro sleeve 781 is provided on the mixing tank 7617 and the nitrogen filling needle 78. The polyfluoro sleeve 781 has good insulation properties. The mixing tank 7617 and the nitrogen filling needle 78 are indirectly fixed on the second bracket 77 by the polyfluoro sleeve 781 to avoid the loss of ions.

[0071] refer to Fig.12 and Fig.13 The hot pressing assembly 762 is driven by the main cylinder C7621 under the workbench 73 to move up and down. The hot pressing assembly 762 includes first cylinders 7622 correspondingly arranged on both sides below the nitrogen filling needle 78 along a direction perpendicular to the transfer direction of the powder-liquid double-chamber bag. The two first cylinders 7622 are arranged horizontally. The piston end of the first cylinder 7622 is fixedly connected with a first pressure head 7623. A clearance groove 7624 for the nitrogen filling needle 78 to pass through is provided on the side where the two first pressure heads 7623 are close to each other. The first pressure heads 7623 are driven to approach each other by the first cylinder 7622, ​​so that the incision of the double-chamber bag is hot-pressed and sealed. At the same time, the nitrogen filling needle 78 fills the powder chamber of the double-chamber bag with nitrogen, and the original air in the double-chamber bag is bulged out from the gap at the clearance groove 7624 by the nitrogen.

[0072] A second cylinder 7625 is correspondingly arranged above the first cylinder 7622, ​​and a second pressing head 7626 is fixedly connected to the cylinder shaft of the second cylinder 7625. After the first pressing head 7623 completes the preliminary hot pressing of the incision of the double-chamber bag, the first cylinder 7622 drives the first pressing head 7623 to leave, the main cylinder B771 drives the nitrogen filling needle 78 to leave, and the main cylinder C7621 drives the hot pressing assembly 762 to descend as a whole, so that the second cylinder 7625 is located at the initial position of the first cylinder 7622, ​​and then the second cylinder 7625 drives the second pressing head 7626 to completely weld the incision of the powder-liquid double-chamber bag tightly.

[0073] Considering that when the double-chamber bag is in a state to be sealed after powder filling, the two sides of the incision of some double-chamber bags are re-attached together, which is not conducive to the insertion of the nitrogen filling needle 78, a second bag opening device 79 is provided on the workbench 73 below the sealing and inflating component 761. The second bag opening device 79 includes a main cylinder D791, which is relatively arranged on both sides of the circulating conveying line 2. The cylinder axes of the two main cylinders D791 are both arranged vertically upward. The two main cylinders D79 1 are fixedly installed with auxiliary cylinders D792, the two auxiliary cylinders D792 are in a horizontal posture, and the driving direction is perpendicular to the transfer direction of the powder-liquid double-chamber bag. A second bag opening suction cup 793 is arranged on both sides of each nitrogen filling needle 78, and the second bag opening suction cup 793 on each side is connected to the piston end of the auxiliary cylinder D792 on each side through a connecting plate. The second bag opening suction cups 793 on both sides of the nitrogen filling needle 78 can be driven to move closer to or away from each other through the auxiliary cylinder D792.

[0074] Before inflation, the double-chamber bag is stretched to both sides by two second bag opening suction cups 793 so that the nitrogen filling needle 78 can be smoothly inserted into the powder cavity of the double-chamber bag, and then the second bag opening device 79 is lifted upward by the main cylinder D791 on the workbench 73 so that the second bag opening suction cup 793 is staggered with the first pressing head 7623, so that the first pressing head 7623 can press the incision of the double-chamber bag during the inflation process.

[0075] Main references Fig.13 The pipeline of the second bag opening suction cup 793 is connected with several first vacuum switches 794 corresponding to the second bag opening suction cup 793, and is connected with the control main board 795. The first vacuum switch 794 can detect whether the second bag opening suction cup 793 has opened the two sides of the double-chamber bag. If the vacuum pressure value detected by the first vacuum switch 794 is lower than the preset threshold value, it indicates that the second bag opening suction cup 793 has not opened the powder cavity of the double-chamber bag, and the nitrogen filling needle has not filled nitrogen. The powder-liquid double-chamber bag product that has not been filled with nitrogen is a non-compliant product.

[0076] refer to Fig.14 After powder filling and heat sealing, the powder-liquid double-chamber bag enters the bag output station 8. The bag output station 8 includes a bag tail clamping assembly 81 arranged on the frame 1 and located above the circulating conveyor line 2, an output conveyor belt 82 arranged side by side with the circulating conveyor line 2, and a waste collection box 83. The bag tail clamping assembly 81 is used to clamp the bag tail of the powder-liquid double-chamber bag. According to the detection of the first vacuum switch 794 in the upstream powder filling station 7, if the product meets the standards, the powder-liquid double-chamber bag is clamped and separated from the circulating conveyor line and placed on the output conveyor belt 82 below; if the product does not meet the standards, the powder-liquid double-chamber bag that does not meet the standards is clamped and placed in the waste collection box 83 below.

[0077] refer to Fig.15The bag tail clamping assembly 81 is used to clamp the bag tail of the powder-liquid double-chamber bag and disengage the powder-liquid double-chamber bag from the positioning pin 92 by horizontal movement. Specifically, the bag tail clamping assembly 81 includes a transverse electric cylinder 811, a bag output clamping claw cylinder 812, a first mounting plate 813, a second mounting plate 814 and a lifting cylinder 815. The transverse electric cylinder 811 is fixedly connected to the frame 1 in a horizontal posture to be supported above the circulating conveying line 2. The conveying direction of the transverse electric cylinder 811 is perpendicular to the conveying direction of the powder-liquid double-chamber bag. The first mounting plate 813 is fixedly connected to the slider of the horizontal electric cylinder 811, and two lifting cylinders 815 are preferably configured. The two lifting cylinders 815 are respectively arranged on both sides of the horizontal electric cylinder 811. The lifting cylinder 815 is vertically arranged, and its bottom end is fixedly connected to the lower surface of the first mounting plate 813, and the end of the piston rod is fixedly connected to the upper surface of the second mounting plate 814; there are four bag output clamping cylinders 812, and the four bag output clamping cylinders 812 are fixed on the lower surface of the second mounting plate 814 at equal intervals along the conveying direction of the powder-liquid double-chamber bag. The lifting cylinder 815 can simultaneously drive the four bag output clamping cylinders 812 to move up and down in the vertical direction, thereby clamping the four powder-liquid double-chamber bags at the same time.

[0078] refer to Fig.16 The bag tail clamping assembly 81 also includes a guide assembly 816, which mainly includes a guide sleeve 8161, a guide column 8162, a third mounting plate 8163 and a fourth mounting plate 8164. The third mounting plate 8163 is supported in parallel above the first mounting plate 813, and the fourth mounting plate 8164 is arranged between the second mounting plate 814 and the horizontal electric cylinder 811. The cylinder body of the lifting cylinder 815 is fixed to the second mounting plate 814. The guide sleeve 8161 and the guide column 8162 are respectively arranged in two groups and are respectively arranged on both sides of the horizontal electric cylinder 811. The guide sleeve is arranged between the first mounting plate 813 and the fourth mounting plate 8164 in a vertical posture, and its top end is fixedly connected to the first mounting plate 813, and the bottom end is fixedly connected to the fourth mounting plate 8164; the guide column 8162 passes through the first mounting plate 813 and the fourth mounting plate 8164, and the top end is fixedly connected to the third mounting plate 8163, and the bottom end is fixedly connected to the second mounting plate 814. When the lifting cylinder 815 is driven, the second mounting plate 814 can move more stably in the vertical direction under the guidance of the guide column 8162 and the guide sleeve 8161.

[0079] refer to Fig.17 The bag output station 8 also includes a bag head pushing assembly 84, which is used to horizontally move the mouth tube engaged in the mouth tube positioning plate 93 out of the card slot 931, thereby assisting the bag output clamping claw cylinder 812 to clamp the powder-liquid double-chamber bag and transport it to the output conveyor belt 82 or the waste collection box 83.

[0080] Specifically, the bag head pushing assembly 84 includes a push frame 841, a top plate 842 and a push cylinder 843. The push cylinder 843 is in a horizontal posture and supported inside the circulating conveyor line 2. Its pushing direction is consistent with the sliding direction of the horizontal electric cylinder 811. The push frame 841 is in a horizontal posture. The back of the push frame 841 is fixedly connected to the piston rod of the push cylinder 843. There are multiple top plates 842, and the number is set according to the number of clamping cylinders. The top plate 842 is welded to the front of the push frame 841 at equal intervals. The front end of the top plate 842 is inwardly recessed to form an arc top groove 8421. When installed, the height of the top plate 842 of the push frame 841 is set to be higher than the upper surface of the mouth tube positioning plate 93 of each bag transfer fixture 9, so that the arc top groove 8421 of the top plate 842 can just be stuck in the neck of the mouth tube and conflict with the neck of the mouth tube, thereby stably pushing the mouth tube out of the slot 931 of the mouth tube positioning plate 93.

[0081] The working principle of the bag output station 8 is as follows: the circulating conveyor line 2 conveys four powder-liquid double-chamber bags to the bottom of the bag tail clamping assembly 81, at which time the four powder-liquid double-chamber bags correspond one to one with the bag head pushing assembly 84; then the horizontal electric cylinder 811 is actuated to drive the bag output clamping claw cylinder 812 to move to the top of the powder-liquid double-chamber bag; then, the lifting cylinder 815 drives the second mounting plate 814 to move downward until the bag output clamping claw cylinder 812 reaches the bag tail, and the bag output clamping claw cylinder 812 is actuated to clamp the bag tail; next, the horizontal electric cylinder 811 drives the bag output clamping claw cylinder 812 to move toward the output conveyor belt 82 and the waste collection box 83 in reverse, so that the bag tail of the powder-liquid double-chamber bag is separated from the positioning pin 91. At the same time, the push cylinder 843 drives the push frame 841 to move forward, so that the top plate 842 pushes the mouth tube of the powder-liquid double-chamber bag against the slot 931 of the outlet tube positioning plate 93, so that the powder-liquid double-chamber bag can be clamped by the bag output clamping claw cylinder 812 to the specified position, that is, on the output conveyor belt 82 or in the waste collection box 83 mentioned above. After that, the above steps are repeated to realize the bag output work of the powder-liquid double-chamber bag.

[0082] In addition, the system further includes a powder cavity filling weighing device 10, and at least one group of powder cavity filling weighing devices 10 is provided, and the number of the powder cavity filling weighing devices 10 is consistent with the number of filling ports of the bag transfer fixture 9 and the powder storage bin 71. In this embodiment, the powder cavity filling weighing devices 10 are provided as a group of four.

[0083] refer to Figure 1 and Fig.18 , which is installed on the circulating conveyor line 2 like the bag transfer fixture 9. In one example, each 16 groups of bag transfer fixtures 9 include a group of powder chamber filling weighing devices 10. The powder chamber filling weighing devices 10 can weigh the discharge amount of the powder storage bin 71 online, so as to detect whether the powder filling amount of the powder-liquid double-chamber bag is normal, which is beneficial to ensure the finished product quality of the powder-liquid double-chamber bag, reduce the defective rate and save costs.

[0084] refer to Fig.18 The powder chamber filling and weighing device 10 includes a material collecting portion 101 , a supporting portion 102 and a mounting portion 103 .

[0085] refer to Fig.19 The material collecting part 101 includes a support member 1011 and a weighing cup 1012. The weighing cup 1012 is configured to be partially contained in the support member 1011 and supported by the support member 1011. Specifically, the support member 1011 includes a support ring 1013 and two connecting rods 1014. The two connecting rods 1014 are relatively fixedly connected to the two sides of the support ring 1013. The connecting rods 1014 and the support ring 1013 can be welded; the two ends of the connecting rods 1014 are respectively integrally formed with a connecting ear. The connecting rods 1014 on both sides are connected to the support part 102 through the connecting ears, and the support ring 1013 is kept in a horizontal posture. The weighing cup 1012 is placed in the support ring 1013, and its cup edge rests on the upper surface of the support ring 1013.

[0086] refer to Fig.18 The support part 102 includes two support rods 1021 facing each other. The support rods 1021 are L-shaped plate structures. The bottom ends of the two support rods 1021 are fixedly connected to the mounting part 103, which can be specifically connected by welding or bolts. The top ends of the two support rods 1021 are respectively fixedly connected to a support block 1022. The two support blocks 1022 are located on the same side. One end of the support block 1022 and the top end of the support rod 1021 are provided with a concentric connection hole 1023, and a positioning pin 1024 is inserted into the connection hole 1023.

[0087] Main references Figure 18-19 The bottom end of the support block 1022 is configured with a mounting groove 1025, and the connecting ear of the connecting rod 1014 is inserted into the mounting groove 1025. The connecting ear can specifically be a cylindrical ring 1026. A horizontal axis 1027 is passed through the mounting groove 1025. The horizontal axis 1027 is passed through the ring 1026 to form a fitting relationship with the ring 1026, so that the support ring 1013 can be stably supported in the air.

[0088] Main references Fig.18 The support block 1022 is punched vertically downward from the top surface, extending all the way to the mounting groove 1025, and coaxial holes are respectively provided on the positioning pin 1024, the collar 1026, and the horizontal shaft 1027, and a bolt member 1028 is vertically penetrated from the top of the support block 1022 downward. The bolt member 1028 can prevent the positioning pin 1024 from detaching outward and the support block 1022 from rotating during operation, thereby ensuring the stability of the position of the weighing cup 1012.

[0089] refer to Fig.18 and Fig. 20 The mounting portion 103 includes a mounting plate 1031, and the mounting plate 1031 includes a first connecting plate 1032 and two second connecting plates 1033. The two second connecting plates 1033 are respectively fixedly connected to the two sides of the first connecting plate 1032, and together with the first connecting plate, form a T-shaped plate structure. Of course, the first connecting plate 1032 and the two second connecting plates 1033 can be an integrated structure. The first connecting plate 1032 is used to connect with the circulating conveyor line 2, and specifically, the first connecting plate 1032 can be locked on the side of the belt of the circulating conveyor line 2 by bolts; the two second connecting plates 1033 are each fixedly connected to the top of the support rod 1021.

[0090] Furthermore, in order to enable the device to operate stably, the mounting portion 103 also includes an auxiliary slider 1034 detachably connected to the first connecting plate 1032, a groove 1035 is provided on one side of the auxiliary slider 1034, and sliding arms 1038 that are engaged with the circulating conveyor line 2 are formed on both sides of the groove 1035. A protrusion 1036 is constructed on the other side of the auxiliary slider 1034 opposite to the groove 1035, and an opening 1037 matching the shape of the protrusion 1036 is provided on the plate surface of the first connecting plate 1032. During installation, the auxiliary slider 1034 is attached to the inner side surface of the first connecting plate 1032, the protrusion 1036 is embedded in the opening 1037, and the first connecting plate 1032 and the auxiliary slider 1034 are locked from the outside of the first connecting plate 1032 by bolts. In addition, bolts are used to penetrate from the outer side of the protrusion 1036 to the side facing the circulating conveyor line 2 to lock the first connecting plate 1032 and the auxiliary slider 1034 on the circulating conveyor line 2.

[0091] Working principle: Open the circulation conveying line 2, and the bag transfer fixture 9 performs the circulation conveying of the powder-liquid double-chamber bag. The powder-liquid double-chamber bag passes through the powder chamber bag opening station and arrives directly below the powder storage bin 71. At this time, the weighing cups 1012 of the four powder chamber filling weighing devices 10 correspond to the filling ports of the powder storage bin 71 one by one, and the filling gun head of the powder storage bin 71 pours the powder into the weighing cup 1012 downward. This process is always carried out online. After the weighing cup 1012 that receives the powder leaves the filling station, the staff will remove the weighing cup 1012 and test the powder filling amount in the weighing cup 1012 to determine whether it meets the standard powder filling amount. If it is found that the powder filling amount in a certain weighing cup does not meet the standard, then it is necessary to promptly test and maintain the filling line corresponding to the weighing cup 1012. At the same time, it is necessary to test the powder-liquid double-chamber bag filled by the filling gun within the corresponding powder detection cycle, remove the unqualified filled products, and ensure the finished product qualification rate of the powder-liquid double-chamber bag.

[0092] The powder detection cycle can be set, and the circular conveying line 2 can be used to convey one cycle, or the circular conveying line 2 can be used to convey multiple cycles.

[0093] The powder cavity filling weighing device 10 is different from the bag transfer fixture 9. Due to the existence of the weighing cup 1012, a photoelectric sensor is arranged below the circulation conveying line 2 before entering the bag cutting station 5. The height of the photoelectric sensor is just enough to be blocked by the passing powder cavity filling weighing device 10, but cannot be blocked by the bag transfer fixture 9. Therefore, when the powder cavity filling weighing device 10 passes through the photoelectric sensor, the photoelectric sensor detects a signal, so that the system can judge that the powder cavity filling weighing device 10 is about to enter the bag cutting station 5. At this time, the relevant components of the bag cutting station 5 remain stationary under the pre-set program, thereby avoiding the powder cavity filling weighing device 10. The specific control can adopt PLC logic control. According to the stepping rhythm, the subsequent bag opening and inflation station 6, powder filling station 7, and bag output station 8 also avoid the powder cavity filling weighing device 10, and the subsequent process can return to normal.

[0094] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder chamber filling system for a powder-liquid double chamber bag, characterized in that: The invention comprises a frame, a circulating conveying line arranged on the frame, a bag hanging station, a bag cleaning station, a bag cutting station, a bag opening and inflation station, a powder filling station, and a bag output station which are arranged on the circulating conveying line in sequence. The circulating conveying line is provided with a plurality of groups, each group of which is used for hanging powder-liquid double-chamber bags, and at least one group, each group of which is used for sampling and weighing the powder cavity filling amount. The bag transfer clamp and the powder cavity filling weighing device move with the circulating conveying line. The powder filling station comprises a powder storage bin, a first bag opening device, a static elimination device and a sealing device. The first bag opening device is arranged below the powder storage bin to open the powder cavity of the powder-liquid double-chamber bag by vacuum adsorption. The static elimination device comprises a first ion gun and an air outlet nozzle. The muzzle of the first ion gun and the air outlet of the air outlet nozzle are both facing the incision of the powder chamber, so as to blow ion wind into the powder chamber while the powder chamber is filled with powder, and the sealing device is used to heat and pressurize the incision of the powder chamber that has been filled with powder to seal it; the bag opening and inflation station includes a plurality of second vacuum suction cup assemblies relatively arranged on both sides of the circulating conveyor line and a plurality of bag opening and inflation assemblies clamped above the circulating conveyor line, the second vacuum suction cup assemblies move relatively and are adsorbed on both sides of the bag body to separate the incision; the bag opening and inflation assembly includes an inflation needle and an inflation clamping claw cylinder that move up and down in the vertical direction, and the two clamping claws of the inflation clamping claw cylinder are configured with a semi-arc groove on one side facing each other, so that when the two clamping claws clamp and seal the bag incision, the inflation needle is accommodated between the two clamping claws.

2. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 1, characterized in that: The bag hanging station includes a freely rotating mechanical arm, a mounting frame fixed on the mechanical arm, a plurality of first vacuum suction cup assemblies arranged on both sides of the mounting frame, and a plurality of second mouth tube clamping assemblies corresponding to the first vacuum suction cup assemblies one by one. The powder-liquid double-chamber bag is horizontally unfolded, the bag body is adsorbed by the first vacuum suction cup assembly, and the mouth tube is clamped by the second mouth tube.

3. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 1, characterized in that: The bag cleaning station comprises a cleaning chamber covered on the circulating conveying line, the cleaning chamber is provided with an ion generating device, a negative pressure suction device is provided on the cleaning chamber, and a bag transfer fixture carrying a powder-liquid double-chamber bag passes through the bottom of the cleaning chamber.

4. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 1, characterized in that: The bag cutting station includes a cutting electric cylinder installed above the circulating conveyor line, a fixed frame driven by the cutting electric cylinder to move in a direction perpendicular to the bag transfer direction, and a plurality of cutting claw cylinders installed below the fixed frame. Horizontal cutting components opposite to each other are arranged on both sides of the circulating conveyor line. The horizontal cutting components move relative to each other to cut the waste edges of the powder-liquid double-chamber bag, and the waste edges are clamped from above by the cutting claw cylinders.

5. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 1, characterized in that: The sealing device includes a sealing and inflating component and a hot pressing component, the sealing and inflating component includes a gas storage bottle, a buffer tank, a main inflating pipe, a flow meter, a sub-inflating pipe, a mixing tank, a second ion gun, a pneumatic diaphragm valve, a nitrogen filling needle, the gas storage bottle is connected to the buffer tank, one end of the main inflating pipe is connected to the buffer tank, and the other end is connected to the flow meter, the flow meter is connected to the sub-inflating pipe, the outlet of the sub-inflating pipe is connected to the mixing tank, the second ion gun introduces ions into the mixing pipe, the outlet of the mixing tank is connected to the nitrogen filling needle, and the sub-inflating pipe is also provided with a pneumatic diaphragm valve; the hot pressing component includes relatively arranged on both sides of the circulation conveying line, A first pressing head is force-driven to move relative to the bag transfer direction, and a second pressing head is relatively arranged on both sides of the circulating conveying line and force-driven to move relative to the bag transfer direction. The first pressing head and the second pressing head move linearly up and down synchronously in the vertical direction, and the surface of the first pressing head is configured with a makeshift groove for the nitrogen filling needle; second bag opening suction cups are also arranged on both sides of the circulating conveying line, and the second bag opening suction cups are used for vacuum adsorbing both sides of the bag body to open the powder cavity incision. The second bag opening suction cups can move synchronously with the first pressing head and the second pressing head in the vertical direction, and can also move up and down independently in the vertical direction.

6. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 5, characterized in that: The bag output station includes a bag tail clamping assembly arranged above the circulating conveyor line and a bag head pushing assembly arranged below the circulating conveyor line, the bag tail clamping assembly includes a transverse electric cylinder, and a plurality of bag output clamping claw cylinders driven by the transverse electric cylinder for clamping the bag tail, the bag head pushing assembly includes a pushing frame, a plurality of top plates and a pushing cylinder, the plurality of top plates correspond one to one with the plurality of bag transfer fixtures in each group, the pushing frame is driven by the pushing cylinder to move back and forth, so as to push the mouth tube stuck on the bag transfer fixture to be detached through the top plate, thereby cooperating with the bag tail clamping assembly to detach the powder-liquid double-chamber bag from the bag transfer fixture.

7. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 5, characterized in that: A first vacuum switch is connected to the vacuum pipeline of the second bag opening suction cup, and the first vacuum switch is connected to the control main board. When the vacuum pressure value of the first vacuum switch meets the preset threshold, it is judged that the powder-liquid double-chamber bag corresponding to the first vacuum switch is normally filled with nitrogen. Otherwise, it is judged that the second vacuum switch is not filled with nitrogen. According to the detection result of the first vacuum switch, the bag output station is controlled to distinguish between products that meet the standards and products that do not meet the standards.

8. The powder chamber dispensing system of the powder-liquid double chamber bag according to claim 1, characterized in that: The powder chamber filling and weighing device comprises a material collecting part, a supporting part and a mounting part. The material collecting part comprises a removable weighing cup. The supporting part supports the weighing cup. The mounting part is connected to the supporting part and is fixedly mounted on the circulating conveying line.

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