Powder and liquid double-chamber bag powder split charging device

Abstract

The utility model discloses a powder-liquid double-chamber bag powder split charging device, which comprises a powder cup cover, a powder inlet, a powder outlet and a powder outlet, the stirring part comprises a stirring seat and a stirring shaft sleeve, and the stirring shaft sleeve is rotatably arranged in the mounting seat in a sleeving manner and penetrates through the powder cup cover to be inserted into the stirring seat; the sub-packaging part comprises a sub-packaging fixing shaft sleeve and a sub-packaging screw rod, the sub-packaging fixing shaft sleeve is sleeved with the stirring shaft sleeve, and the sub-packaging screw rod is rotationally sleeved with the sub-packaging fixing shaft sleeve and penetrates out of the stirring base to stretch into the powder falling funnel; a spacer sleeve A is arranged between the split charging screw rod and the split charging fixing shaft sleeve, a spacer sleeve B is arranged between the split charging fixing shaft sleeve and the stirring shaft sleeve, and a first collecting tank is arranged in the bottom, located under the spacer sleeve A and the spacer sleeve B, of the stirring base; a spacer sleeve C is arranged between the stirring shaft sleeve and the mounting base, and a second collecting tank is arranged in the top, located under the spacer sleeve C, of the stirring base. The medicine powder subpackaging precision can be improved, the situation that generated particles pollute medicine powder is avoided, and therefore the production quality of the powder-liquid double-chamber bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder-liquid double-chamber bag manufacturing machinery, and more specifically, to a powder-liquid double-chamber bag powder packaging device. Background Art

[0002] The powder-liquid double chamber bag is a ready-to-mix infusion preparation system for intravenous drip, which encapsulates the drug powder and injection solvent separately in two chambers of the same packaging bag separated by a virtual weld.

[0003] During the manufacturing process of the powder-liquid double-chamber bag, the powder-liquid double-chamber bag is conveyed to the powder filling station by the synchronous belt conveyor system. The powder filling station is equipped with a powder-liquid double-chamber bag powder filling device. The powder-liquid double-chamber bag powder filling device performs filling operations on the powder-liquid double-chamber bag, that is, filling the powder chamber with powder.

[0004] Understandably, since powder-liquid dual-chamber bags are used for clinical medication dispensing, the amount of powder dispensed into the powder chamber must meet the required dosage and remain sterile. This ensures that the quality of the powder-liquid dual-chamber bags meets clinical safety requirements. To meet these requirements, the powder-liquid dual-chamber bag powder dispensing device must have excellent dispensing accuracy and ensure the sterility of the powder. However, existing dual-chamber bag powder dispensing devices not only have poor dispensing accuracy, but also suffer from friction between the rotating components, which can generate particles and contaminate the powder.

[0005] In summary, how to improve the powder packaging accuracy of the powder-liquid dual-chamber bag powder packaging device and avoid particle contamination of the powder is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a powder-liquid double-chamber bag powder packaging device, which can improve the powder packaging accuracy and avoid the generated particles from contaminating the powder, thereby improving the production quality of the powder-liquid double-chamber bag.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A powder-liquid dual-chamber bag powder packaging device, comprising:

[0009] A powder cup cover, the top of which is provided with a mounting seat, and the bottom of the powder cup cover is provided with a powder dropping funnel communicated with the interior thereof;

[0010] a powder feeding component, connected to the powder cup cover, and used for feeding medicine powder into the powder cup cover;

[0011] A stirring component, comprising a stirring seat and a stirring shaft sleeve, wherein the stirring seat is located inside the powder cup cover, and the stirring shaft sleeve is rotatably sleeved in the mounting seat and passes through the powder cup cover to be inserted into the stirring seat, so as to drive the stirring blades on the outer periphery of the stirring seat to rotate;

[0012] The sub-packaging component includes a sub-packaging fixed shaft sleeve and a sub-packaging screw, wherein the sub-packaging fixed shaft sleeve is sleeved in the stirring shaft sleeve and has a clearance fit therewith, and the sub-packaging screw is rotatably sleeved in the sub-packaging fixed shaft sleeve and passes through the stirring seat and extends into the powder falling funnel;

[0013] A stopper sleeve A is provided between the sub-packaging screw and the sub-packaging fixed sleeve, a stopper sleeve B is provided between the sub-packaging fixed sleeve and the stirring sleeve, and a first collecting tank is provided in the bottom of the stirring seat directly below the stopper sleeve A and the stopper sleeve B;

[0014] A stop sleeve C is provided between the stirring shaft sleeve and the mounting seat, and a second collecting tank is provided in the top of the stirring seat directly below the stop sleeve C.

[0015] Preferably, the stirring seat, the stirring sleeve and the powder falling funnel are coaxially arranged, and a plurality of stirring blades are evenly arranged on the outer periphery of the stirring seat around the axis of the stirring seat, and each stirring blade extends into the powder falling funnel and fits with the gap therein.

[0016] Preferably, the sub-packaging fixed shaft sleeve, the sub-packaging screw and the powder falling funnel are coaxially arranged, and the bottom of the sub-packaging screw is inserted into the funnel mouth of the powder falling funnel and is loosely matched therewith.

[0017] Preferably, the funnel mouth cover of the powder falling funnel is provided with a tightening mouth, and the tightening mouth is provided with a notch coaxial with the powder falling funnel.

[0018] Preferably, a transparent observation window is provided on the powder cup cover, and a powder level detector is provided at the transparent observation window for monitoring the powder level in the powder cup cover in real time and transmitting it to a control system. The control system is electrically connected to the powder feeding component for controlling the amount of powder delivered by the powder feeding component into the powder cup cover.

[0019] Preferably, an inner annular slot is provided on the inner wall of the top end of the stirring seat, and the top end of the stirring seat is embedded in the inner annular slot and is loosely fitted with the inner annular slot.

[0020] Preferably, an outer annular slot is provided on the top outer wall of the stirring seat, and the bottom end of the mounting seat is flush with the bottom end of the stop sleeve C. The two are embedded in the outer annular slot and a gap is left between them and the bottom of the outer annular slot.

[0021] Preferably, the stirring seat is cylindrical, and a radially protruding first contour is provided inside the stirring seat. A downwardly recessed annular groove is provided on the step surface formed between the first contour and the inner circumferential wall of the top end of the stirring seat. The stirring sleeve is in contact with and cooperates with the inner circumferential wall of the first contour. The inner circumferential wall of the top end of the stirring seat, the annular groove and the outer circumferential wall of the stirring sleeve form the second collecting tank.

[0022] Preferably, a radially protruding second contour is further provided in the stirring seat, the outer diameter of the second contour is smaller than the outer diameter of the first contour, the first collecting groove is set downwardly on the step surface formed between the second contour and the first contour, and the inner circumferential wall of the second contour is clearance-matched with the filling screw.

[0023] Preferably, the bottom end of the stop sleeve A, the bottom end of the sub-packaging fixed sleeve, the bottom end of the stop sleeve B and the bottom end of the stirring sleeve are all flush with one side wall of the first collecting tank, and one side wall of the first collecting tank is arranged opposite to the stop sleeve B, and the other side wall passes over the stop sleeve A and is arranged adjacent to the sub-packaging screw.

[0024] Preferably, the filling screw is provided with an outwardly protruding annular outer edge on the rod wall between the stop sleeve A and the first collecting groove, and the groove wall on the other side of the first collecting groove is located directly below and adjacent to the annular outer edge.

[0025] Preferably, the powder feeding component includes:

[0026] The powder delivery pipe includes an integrally formed vertical pipe section and a horizontal pipe section, wherein the vertical pipe section is connected to the aluminum barrel via a regulating valve, and the first end of the horizontal pipe section is inserted into the powder cup cover and communicates with the interior thereof;

[0027] A powder feeding screw is arranged in the transverse tube section, with a preset gap between the outer peripheral wall of the powder feeding screw and the inner peripheral wall of the transverse tube section, and the second end of the powder feeding screw passing through the transverse tube section is connected to the screw driving assembly.

[0028] Preferably, a powder feeding retaining ring A and a powder feeding retaining ring B are provided between the transverse tube section and the powder feeding screw, and the two are arranged in sequence along the direction from the second end of the transverse tube section to the first end thereof and are adjacent to the second end of the transverse tube section;

[0029] The outer peripheral wall of the powder feeding retaining ring A is fixedly connected to the inner peripheral wall of the horizontal pipe section, and the inner peripheral wall is clearance-matched with the powder feeding screw;

[0030] The outer peripheral wall of the powder feeding retaining ring B is clearance-matched with the inner peripheral wall of the horizontal pipe section, and the inner peripheral wall is fixedly connected to the powder feeding screw;

[0031] The powder feeding retaining ring A and the powder feeding retaining ring B are connected on opposite sides through mutually staggered and matched annular concave-convex structures and are rotated with clearance.

[0032] Preferably, the screw drive assembly comprises:

[0033] The powder feeding support seat is arranged on the first end of the horizontal pipe section.

[0034] A powder feeding rotating shaft sleeve is rotatably sleeved in the powder feeding support seat and is coaxial with the horizontal pipe section. The outlet portion of the powder feeding screw is inserted into the powder feeding rotating shaft sleeve, and a powder feeding retaining ring C is provided at the sleeve opening of the powder feeding rotating shaft sleeve to be locked with the powder feeding screw.

[0035] The driving mechanism is connected to the powder feeding rotating shaft sleeve and is used for driving the powder feeding rotating shaft sleeve to rotate.

[0036] Preferably, it also includes a lifting component, which includes a lifting funnel and a lifting platform. The lifting funnel cover is arranged on the outer periphery of the powder falling funnel, and the lifting funnel is arranged on the lifting platform. The lifting platform is used to drive the lifting funnel to move up and down.

[0037] During use, the powder-liquid dual-chamber bag powder dispensing device provided by this utility model delivers powder to the interior of the powder cup. The dispensing screw rotates relative to the dispensing fixed sleeve to convey the powder in the powder cup to the powder drop hopper, where it is discharged, thereby dispensing the powder. Simultaneously, the stirring sleeve rotates relative to the mounting base, driving the stirring base to rotate, which in turn drives the stirring blades to rotate and stir the powder in the powder cup, thereby ensuring uniform powder distribution. This, in conjunction with the dispensing screw, improves the dispensing accuracy of the powder.

[0038] In addition, it should be noted that the rotation of the filling screw will cause particles to form between it and the filling fixed sleeve. Since the filling screw needs to pass through the stirring seat and extend into the powder drop funnel, the stirring seat must have a through hole for the filling screw to pass through. Moreover, the filling screw can be rotated, so there must be a gap a between the filling screw and the through hole, and particles will fall into the powder cup through the gap a. To avoid this phenomenon, the present application uses a retaining sleeve A to prevent most particles from falling between the filling screw and the filling fixed sleeve. Even if a trace of particles leaks from the retaining sleeve A, they will fall into the first collection tank and be collected.

[0039] The rotation of the stirring sleeve can cause particles to form between it and the fixed dispensing sleeve. Since the stirring sleeve is inserted into the stirring base, particles generated in the gap between the stirring sleeve and the fixed dispensing sleeve can also fall into the powder cup through gap a. To prevent this, the present application uses a retaining sleeve B to prevent most particles from falling between the stirring sleeve and the fixed dispensing sleeve. Even if a small amount of particles leaks from the retaining sleeve B, they will fall into the first collection tank and be collected.

[0040] The rotation of the stirring sleeve can also cause particles to form between it and the mounting base. Since the stirring sleeve needs to pass through the powder cup, the top of the powder cup must have a perforation for the stirring sleeve to pass through. Furthermore, the stirring sleeve is rotatable, so there must be a gap b between the stirring sleeve and the perforation, and particles can fall into the powder cup through the gap b. To prevent this phenomenon, the present application uses a retaining sleeve C to prevent most particles from falling between the stirring sleeve and the mounting base. Even if a trace of particles leaks through the retaining sleeve C, they will fall into the second collection tank and be collected.

[0041] In summary, the present application has the following effective effects: First, the packaging component and the stirring component cooperate with each other to improve the powder packaging accuracy; second, the baffle sleeve A, baffle sleeve B and baffle sleeve C form the first material blocking line of defense, thereby preventing most of the particles from falling into the powder cup cover and contaminating the powder, and the first collection trough and the second collection trough form the second material blocking line of defense, which can collect trace particles leaking from the baffle sleeve, thereby preventing particles from falling into the powder cup cover and contaminating the powder.

[0042] In summary, the present application can improve the powder packaging accuracy and avoid the generated particles from contaminating the powder, thereby improving the production quality of the powder-liquid double-chamber bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0044] Figure 1 This is a front view of the powder-liquid dual-chamber bag powder packaging device provided by the present invention;

[0045] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0046] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0047] Figure 4 This is a side view of the powder-liquid dual-chamber bag powder packaging device provided by the present invention;

[0048] Figure 5 for Figure 4 A partial enlarged view of point C in the middle;

[0049] Figure 6 This is a schematic diagram of the installation of the light-type static eliminator and the lifting funnel provided by the utility model.

[0050] Reference numerals:

[0051] 1-Powder cup cover; 2-Mounting base; 3-Powder hopper; 4-Stirring base; 5-Stirring sleeve; 6-Sub-packaging fixed sleeve; 7-Sub-packaging screw; 7a-Screw body; 7b-Screw shaft; 8-Block sleeve A; 9-Block sleeve B; 10-Block sleeve C; 11-First collecting tank; 12-Second collecting tank; 13-Bearing A; 14-Bearing B; 15-Bearing C; 16-Stirring blade; 17-Tightening nozzle; 18-Sub-packaging servo motor; 19-Drive motor base; 20-Coupling; 21-Stirring end cover; 22-Sub-packaging end cover; 23-Stirring motor fixed base; 24-Stirring servo motor; 25-Stirring connecting base; 26-Stirring gear; 27-Inner ring slot; 28-outer annular slot; 29-first contour; 30-annular groove; 31-second contour; 32-annular outer edge; 33-powder feeding pipe; 33a-vertical pipe section; 33b-horizontal pipe section; 34-powder feeding screw; 35-aluminum barrel; 36-regulating valve; 37-powder feeding retaining ring A; 38-powder feeding retaining ring B; 39-powder feeding support seat; 40-powder feeding rotating sleeve; 41-powder feeding retaining ring C; 42-powder feeding motor; 43-powder feeding small gear; 44-powder feeding large gear; 45-lifting funnel; 46-lifting drive; 47-support plate; 48-light-type static eliminator; 49-shield; 50-support column; 51-support box; 52-clamp; 53-powder feeding seat. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] The core of the utility model is to provide a powder-liquid double-chamber bag powder packaging device, which can improve the powder packaging accuracy and avoid the generated particles from contaminating the powder, thereby improving the production quality of the powder-liquid double-chamber bag.

[0054] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper," "lower," "front," and "back" are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Furthermore, "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] Please refer to Figures 1 to 3The present application provides a powder-liquid dual-chamber bag powder packaging device, including a powder cup cover 1, a powder feeding component, a stirring component and a packaging component.

[0056] A mounting seat 2 is provided at the top of the powder cup cover 1, and a powder dropping funnel 3 communicating with the interior of the powder cup cover 1 is provided at the bottom of the powder cup cover 1.

[0057] The powder feeding component is connected to the powder cup cover 1 and is used to feed the medicine powder into the powder cup cover 1;

[0058] The stirring component includes a stirring seat 4 and a stirring shaft sleeve 5. The stirring seat 4 is located inside the powder cup cover 1. The stirring shaft sleeve 5 is rotatably sleeved in the mounting seat 2 and passes through the powder cup cover 1 to insert the stirring seat 4, which is used to drive the stirring blades 16 on the periphery of the stirring seat 4 to rotate.

[0059] The subpackaging components include a subpackaging fixed sleeve 6 and a subpackaging screw 7. The subpackaging fixed sleeve 6 is sleeved in the stirring sleeve 5 and has a clearance fit therewith. The subpackaging screw 7 is rotatably sleeved in the subpackaging fixed sleeve 6 and passes through the stirring seat 4 and extends into the powder dropping funnel 3.

[0060] Among them, a stopper sleeve A8 is provided between the sub-packaging screw 7 and the sub-packaging fixed sleeve 6, a stopper sleeve B9 is provided between the sub-packaging fixed sleeve 6 and the stirring sleeve 5, and a first collecting tank 11 is provided in the bottom of the stirring seat 4 directly below the stopper sleeves A8 and B9.

[0061] A stop sleeve C10 is provided between the stirring shaft sleeve 5 and the mounting seat 2 , and a second collecting tank 12 is provided in the top of the stirring seat 4 directly below the stop sleeve C10 .

[0062] Please refer to Figure 2 The stirring component is used to stir the powder in the powder cup cover 1 and mainly includes a stirring base 4 and a stirring shaft sleeve 5. The stirring shaft sleeve 5 is disposed within the mounting base 2, with a gap between the stirring shaft sleeve 5 and the mounting base 2. A bearing A13 is disposed within this gap, that is, the bearing A13 is placed between the stirring shaft sleeve 5 and the mounting base 2 to enable the stirring shaft sleeve 5 to rotate relative to the mounting base 2. The stirring base 4 is located inside the powder cup cover 1 and is disposed adjacent to the top of the powder cup cover 1. The top of the powder cup cover 1 is provided with a perforation. The stirring shaft sleeve 5 passes through the perforation and is fixedly connected to the stirring base 4, driving the stirring base 4 to rotate, thereby driving the stirring blades 16 disposed on the periphery of the stirring base 4 to rotate, thereby stirring the powder in the powder cup cover 1.

[0063] Please refer to Figure 2The function of the above-mentioned filling component is to transport the powder in the powder cup cover 1 to the powder drop hopper 3 for leakage. It mainly includes a filling fixed shaft sleeve 6 and a filling screw 7. Among them, the filling fixed shaft sleeve 6 is mounted inside the stirring shaft sleeve 5 and is fixedly arranged. A gap is left between the stirring shaft sleeve 5 and the filling fixed shaft sleeve 6 to prevent the filling fixed shaft sleeve 6 from interfering with the stirring shaft sleeve 5 and hindering its rotation. The filling screw 7 is mounted between the filling fixed shaft sleeves 6 with a gap. A bearing B14 is set in this gap to enable the filling screw 7 to rotate relative to the filling fixed shaft sleeve 6. The filling screw 7 passes through the stirring base 4 and extends into the powder drop hopper 3. The friction between the filling screw 7 and the powder is used to push the stirred material into the powder drop hopper 3, thereby achieving the leakage of the powder in the powder cup cover 1. It should be noted that the powder-liquid dual-chamber bag is transported to the entire bottom of the powder-falling funnel 3 via the synchronous belt conveyor system, whereby the powder leaks from the powder-falling funnel 3 into the powder chamber in the powder-liquid dual-chamber bag.

[0064] From the above description, it can be seen that the stirring sleeve 5, the sub-packaging fixed sleeve 6 and the sub-packaging screw 7 are sequentially sleeved on the mounting base 2 from the outside to the inside, and the stirring sleeve 5 is inserted into the stirring base 4, and the sub-packaging screw 7 needs to pass through the stirring base 4 and extend into the powder dropping funnel 3. It is not difficult to conclude that a through hole is provided inside the stirring base 4, the stirring sleeve 5 is inserted into the through hole, and the outer peripheral wall of the stirring sleeve 5 is fixedly connected to the inner peripheral wall of the through hole, and the sub-packaging screw 7 passes through the through hole. To further illustrate, since the packaging screw 7 is rotatable, there must be a gap a between the packaging screw 7 and the through hole. Moreover, since the stirring shaft sleeve 5 and the packaging screw 7 are both inserted into the through hole, the gap between the packaging screw 7 and the packaging fixed shaft sleeve 6 and the gap between the stirring shaft and the packaging fixed shaft sleeve 6 are both connected to the through hole. Therefore, the particles generated by the relative rotation of the packaging screw 7 and the packaging fixed shaft sleeve 6 will fall into the powder cup cover 1 through the gap a, and the particles generated by the relative rotation of the stirring shaft sleeve 5 and the packaging fixed shaft sleeve 6 will also fall into the powder cup cover 1 through the gap a.

[0065] Please refer to Figure 3 To prevent these particles from falling into the powder cup 1, a stopper sleeve A8 is provided between the dispensing screw 7 and the dispensing fixed shaft sleeve 6, and a stopper sleeve B9 is provided between the dispensing fixed shaft sleeve 6 and the stirring shaft sleeve 5. Thus, the stopper sleeve A8 can prevent most of the particles from falling due to the relative rotation of the dispensing screw 7 and the dispensing fixed shaft sleeve 6, while the stopper sleeve B9 can prevent most of the powder particles from falling due to the relative rotation of the stirring shaft sleeve 5 and the dispensing fixed shaft sleeve 6.

[0066] Furthermore, a first collection trough 11 is provided within the bottom of the stirring base 4, directly below the baffles A8 and B9. This is equivalent to providing the first collection trough 11 at the bottom of the through-hole of the stirring base 4. The first collection trough 11 is located directly below the baffles A8 and B9. As a result, even if trace particles escape from baffles A8 or B9, they will fall into the first collection trough 11 and be collected, effectively preventing them from falling through the gap a into the powder cup 1 and contaminating the powder.

[0067] From the above description, it can be seen that the stirring sleeve 5 must pass through the powder cup cover 1 and be inserted into the stirring base 4 located inside the powder cup cover 1. It is also easy to conclude that the top of the powder cup cover 1 is provided with a through-hole for the stirring sleeve 5 to pass through. Since the stirring sleeve 5 is rotatable, a gap b must exist between the stirring sleeve 5 and the through-hole. Therefore, particles generated by the relative rotation of the stirring sleeve 5 and the mounting base 2 will pass through the gap b and fall into the powder cup cover 1.

[0068] Please refer to Figure 3 In order to prevent the above particles from falling into the powder cup cover 1, a stopper sleeve C10 is provided between the stirring shaft sleeve 5 and the mounting base 2. Thus, the stopper sleeve C10 can prevent the particles from falling due to the relative rotation of the stirring shaft sleeve 5 and the mounting base 2.

[0069] Furthermore, a second collecting trough 12 is provided in the top portion of the stirring base 4, directly below the baffle C10. This is equivalent to providing the second collecting trough 12 at the top of the through-hole of the stirring base 4. The second collecting trough 12 is located directly below the baffle C10. Thus, even if trace particles leak from the baffle C10, they will fall into the second collecting trough and be collected, effectively preventing the particles from falling into the powder cup 1 through the gap b and contaminating the powder.

[0070] Preferably, the top of the stirring base 4 is arranged adjacent to the top of the powder cup cover 1 so that the second collecting groove 12 is adjacent to the gap b, to ensure that particles leaking from the baffle C10 are collected by the second collecting groove 12 and prevent the particles from falling directly into the powder cup cover 1.

[0071] In summary, the present application has the following beneficial effects: First, while the packaging component realizes the transportation of medicine powder, the stirring component fully stirs the medicine powder in the powder cup cover 1, so that the packaging component and the stirring component cooperate to transport the evenly stirred medicine powder out of the powder cup cover 1, thereby improving the medicine powder packaging accuracy; Second, the baffle sleeve A8, the baffle sleeve B9 and the baffle sleeve C10 form a first material blocking line of defense, thereby preventing most of the particles from falling into the powder cup cover 1 and contaminating the medicine powder, and the first collecting trough 11 and the second collecting trough 12 form a second material blocking line of defense, which can collect trace particles leaking from the baffle sleeve, thereby preventing particles from falling into the powder cup cover 1 and contaminating the medicine powder.

[0072] Considering the specific implementation method of driving the sub-packaging screw 7 to rotate, based on the above embodiment, please refer to Figure 2The sub-packaging component also includes a sub-packaging screw 7 drive mechanism, which includes a sub-packaging servo motor 18, a drive motor base 19, and a coupling 20. The drive motor base 19 is disposed at the top of the mounting base 2, and the sub-packaging servo motor 18 is disposed on the drive motor base 19. The top end of the sub-packaging screw 7 penetrates the top end of the mounting base 2 and extends into the drive motor base 19 and is connected to the output shaft of the sub-packaging servo motor 18 through the coupling 20. Thus, the sub-packaging servo motor 18 can drive the sub-packaging screw 7 to rotate.

[0073] It is easy to understand that the interior of the mounting base 2 is sequentially sleeved with a stirring shaft sleeve 5, a sub-packaging fixed shaft sleeve 6 and a sub-packaging screw 7 from the outside to the inside, so the interior of the mounting base 2 is a hollow structure.

[0074] Preferably, the top and bottom ends of the mounting base 2 are both set as open ends, and the top end of the mounting base 2 is detachably covered with a stirring end cover 21. The stirring end cover 21 is provided with a through hole corresponding to the position of the sub-packaging screw 7 for the top end of the sub-packaging screw 7 to pass through, and the end of the through hole away from the mounting base 2 is provided with a sub-packaging end cover 22 that is detachable from the stirring end cover 21. The driving motor base 19 is provided on the stirring end cover 21 and the sub-packaging end cover 22. The sub-packaging screw 7 passes through the through hole on the sub-packaging end cover 22 to be connected to the output shaft of the sub-packaging servo motor 18. Thus, while the sub-packaging screw 7 passes through the top opening of the mounting base 2, the stirring end cover 21 and the sub-packaging end cover 22 jointly cover and seal the top opening of the mounting base 2 to prevent external impurities from entering the mounting base 2 and affecting the rotation of the sub-packaging screw 7 and the stirring shaft sleeve 5.

[0075] Considering the specific structure of the sub-packaging screw 7, based on the above embodiment, please refer to Figure 2 The sub-packaging screw 7 comprises a screw body 7a and a screw shaft 7b, arranged sequentially from top to bottom. The screw body 7a is rotatably sleeved within the sub-packaging fixed shaft sleeve 6. One end of the screw body 7a extends from the top of the mounting base 2 to connect to the sub-packaging servo motor 18, while the other end passes through the stirring base 4 to connect to one end of the screw shaft 7b. The other end of the screw shaft 7b extends into the powder drop hopper 3. Therefore, the sub-packaging screw 7 is a split structure consisting of the screw body 7a and the screw shaft 7b. This not only facilitates the processing and manufacturing of the sub-packaging screw 7, but also better adapts to being placed between the sub-packaging servo motor 18 and the drop hopper, which are relatively far apart.

[0076] Considering the specific implementation method of driving the stirring sleeve 5 to rotate, based on the above embodiment, please refer to Figure 2 and Figure 4The stirring component also includes a stirring shaft sleeve 5 drive mechanism, which includes a stirring motor mounting base 23, a stirring servo motor 24, a speed reducer, and a stirring gear 26. The stirring motor mounting base 23 is set at the top of the powder cup cover 1. The stirring servo motor 24 is connected to the speed reducer and fixed to the stirring motor mounting base 23. The output shaft of the speed reducer is connected to the stirring gear 26 via the stirring connecting base 25. The mounting base 2 has a notch corresponding to the position of the stirring gear 26. The stirring gear 26 passes through the notch and fits into the outer peripheral wall of the stirring shaft sleeve 5. In this way, the stirring servo motor 24 and the speed reducer can drive the stirring shaft sleeve 5 to rotate.

[0077] To improve the production efficiency of powder-liquid dual-chamber bags, in this embodiment, the powder cup cover 1 is equipped with at least two stirring components, at least two dispensing components, and at least two powder dropout funnels 3. The stirring components, dispensing components, and powder dropout funnels 3 are arranged in a one-to-one correspondence. As a result, a single powder cup cover 1 can be used to simultaneously fill at least two powder-liquid dual-chamber bags with powder, thereby improving the production efficiency of the powder-liquid dual-chamber bags.

[0078] Preferably, the top of the powder cup cover 1 is integrally connected with a support plate 47, the stirring motor fixing seat 23 is fixed on the support plate 47, and the stirring gear 26 is correspondingly engaged with two adjacent sub-packaging fixed sleeves 6, so that the two stirring components are driven to rotate by a common driving component to save energy.

[0079] For further information, please refer to Figure 1 A protective cover 49 is provided on the support plate 47, and all components in the stirring shaft sleeve 5 driving mechanism and the sub-packaging screw 7 driving mechanism are arranged in the protective cover 49 to prevent external dust from falling into the stirring shaft sleeve 5 driving mechanism and the sub-packaging screw 7 driving mechanism and affecting normal operation.

[0080] In order to further optimize and improve the powder packaging accuracy, based on the above examples, please refer to Figure 2 The stirring seat 4, the stirring shaft sleeve 5 and the powder falling funnel 3 are coaxially arranged, and a plurality of stirring blades 16 are evenly arranged on the outer periphery of the stirring seat 4 around the axis of the stirring seat 4, and each stirring blade 16 extends into the powder falling funnel 3 and fits with its clearance.

[0081] On the one hand, a plurality of stirring blades 16 are evenly arranged on the periphery of the stirring base 4, and the stirring blades 16 extend into the powder drop funnel 3. Thus, the powder placed at the bottom of the powder cup cover 1 can be fully stirred to fully stir the powder to be dropped, thereby facilitating the improvement of the powder packaging accuracy and thus ensuring that the quality of the powder-liquid dual-chamber bag is up to standard. On the other hand, the stirring base 4 and the stirring shaft sleeve 5 are coaxially arranged with the powder drop funnel 3. Thus, the stirring shaft sleeve 5 drives the plurality of stirring blades 16 to rotate stably through the stirring base 4, which helps the plurality of stirring blades 16 always rotate around the powder drop funnel 3 as the axis without deviation, thereby preventing the stirring blades 16 from contacting and colliding with the powder drop funnel 3 and affecting the powder drop, thereby improving the powder packaging accuracy and thus ensuring that the quality of the powder-liquid dual-chamber bag is up to standard.

[0082] Preferably, the stirring blades 16 are arranged in an arc shape to improve the fluidity of the powder and enhance the stirring effect.

[0083] In order to further optimize and improve the powder packaging accuracy, based on the above examples, please refer to Figure 2 The sub-packaging fixed shaft sleeve 6, the sub-packaging screw 7 and the powder falling funnel 3 are coaxially arranged, and the bottom end of the sub-packaging screw 7 is inserted into the funnel mouth of the powder falling funnel 3 and is in clearance fit with it.

[0084] Specifically, the sub-packaging fixed sleeve 6, the screw body 7a and screw shaft 7b in the sub-packaging screw 7, and the powder dropping funnel 3 are coaxially arranged, wherein one end of the screw body 7a extends out of the top of the mounting seat 2 to connect to the sub-packaging servo motor 18, and the other end passes through the stirring seat 4 to connect to one end of the screw shaft 7b, and the other end of the screw shaft 7b extends into the powder dropping funnel 3, and a gap is left between the bottom of the screw shaft 7b and the funnel mouth of the powder dropping funnel 3, and this gap is for the powder to pass through for dropping.

[0085] It can be understood that there is a long distance between the packaging servo motor 18 and the powder dropping funnel 3, and the packaging fixed sleeve 6, the packaging screw 7 and the powder dropping funnel 3 are coaxially arranged, which can ensure the smooth rotation of the packaging screw 7, that is, to ensure the smooth rotation of the screw shaft 7b, so as to avoid contact and collision between the bottom of the screw shaft 7b and the inner wall of the funnel mouth, to ensure that the screw shaft 7b is not eccentric, that is, to ensure that the gap between the screw shaft 7b and the funnel mouth remains unchanged, which is conducive to improving the powder packaging accuracy and thus ensuring that the quality of the powder-liquid double-chamber bag meets the standards.

[0086] In order to further optimize and improve the powder packaging accuracy, based on the above examples, please refer to Figure 2 The funnel mouth cover of the powder falling funnel 3 is provided with a tightening mouth 17, and the tightening mouth 17 is provided with a notch coaxial with the powder falling funnel 3.

[0087] The gap can be set according to the properties of the powder, that is, if the powder has good fluidity, the gap size is set smaller, and if the powder has poor fluidity, the gap size is set larger. Therefore, the powder packaging accuracy can be better controlled by locking the nozzle, thereby ensuring that the powder-liquid double chamber bag meets the quality standards.

[0088] In order to further optimize and improve the powder packaging accuracy, based on the above embodiment, a transparent observation window is provided on the powder cup cover 1, and a powder level detector is provided at the transparent observation window, which is used to monitor the powder level in the powder cup cover 1 in real time and transmit it to the control system. The control system is connected to the powder feeding component by electrical signals to control the amount of powder delivered by the powder feeding component to the powder cup cover 1.

[0089] Therefore, the powder level detector is used to monitor the powder level in the powder cup cover 1 in real time. The control system is provided with a minimum target powder level and a maximum target powder level. If the powder level is lower than the minimum target powder level, the control system controls the powder feeding component to feed the powder to the powder cup cover 1. If the powder level is higher than the maximum target powder level, the control system controls the powder feeding component to stop feeding the powder to the powder cup cover 1 to ensure that the powder level in the powder cup cover 1 is always in the target area, thereby ensuring that the powder density at the bottom of the powder cup cover 1 meets the requirements, and further ensuring that the powder packaging amount is stable, that is, it is beneficial to improve the powder packaging accuracy.

[0090] Considering the technical effect of further optimizing the prevention of particle contamination of medicine powder, based on the above embodiment, please refer to Figure 3 The inner wall of the top end of the stirring seat 4 is provided with an inner annular slot 27 , and the top end of the stirring seat 4 is embedded in the inner annular slot 27 and is loosely matched with the inner annular slot 27 .

[0091] On the one hand, the top of the stirring base 4 is loosely fitted into the inner annular slot 27, preventing interference between the stirring base 4 and the inner annular slot 27 during rotation, thereby ensuring smooth rotation of the stirring base 4. On the other hand, the top of the stirring base 4 is embedded in the inner annular slot 27, significantly reducing the gap between the stirring base 4 and the top of the powder cup cover 1, effectively preventing powder from entering the powder cup cover 1. As a result, particles generated between the mounting base 2 and the stirring shaft sleeve 5 escape through the retaining sleeve C10. These particles pass through the gap b between the stirring shaft sleeve 5 and the top of the powder cup cover 1 and fall into the second collection trough 12, effectively preventing particles from entering the powder cup cover 1 and contaminating the powder.

[0092] Considering how to optimize the particle collection effect of the second collecting tank 12, based on the above embodiment, please refer to Figure 3 The outer wall of the top end of the stirring seat 4 is provided with an outer annular slot 28, and the bottom end of the mounting seat 2 is flush with the bottom end of the stopper sleeve C10. The two are embedded in the outer annular slot 28 and a gap is left between them and the bottom of the outer annular slot 28.

[0093] On the one hand, the bottom end of the mounting base 2 is flush with the baffle C10 to prevent particles generated between the mounting base 2 and the agitator sleeve 5 from falling directly into the second collection tank 12 without being blocked by the baffle C10. This means that the baffle C10 blocks most of the particles generated between the mounting base 2 and the agitator sleeve 5, which helps reduce the frequency of cleaning the second collection tank 12. On the other hand, the bottom end of the mounting base 2 is inserted into the outer annular slot 28 together with the baffle C10 to prevent some particles that leak out of the baffle C10 from falling outside the powder cup cover 1, thereby ensuring that all particles that leak out of the baffle C10 are collected in the second collection tank 12, thereby facilitating subsequent centralized cleaning by staff. It should be noted that a gap is left between the bottom end of the mounting base 2 and the baffle C10 and the bottom of the outer annular slot 28 to ensure that particles that leak out of the baffle C10 can smoothly pass through the gap b between the agitator sleeve 5 and the top of the powder cup cover 1 and fall into the second collection tank 12.

[0094] Considering the specific implementation of the second collecting tank 12, based on the above embodiment, please refer to Figure 3 The stirring seat 4 is cylindrical, and a radially protruding first contour 29 is provided inside the stirring seat 4. A downwardly recessed annular groove 30 is provided on the step surface formed between the first contour 29 and the inner circumferential wall of the top end of the stirring seat 4. The stirring sleeve 5 contacts and cooperates with the inner circumferential wall of the first contour 29. The inner circumferential wall of the top end of the stirring seat 4, the annular groove 30 and the outer circumferential wall of the stirring sleeve 5 form a second collecting tank 12.

[0095] Specifically, the agitator base 4 is cylindrical, even though its interior includes through-holes for inserting the agitator sleeve 5, the dispensing fixed sleeve 6, and the dispensing screw 7. The agitator sleeve 5 contacts and engages with the inner circumferential wall of the first profile 29, with no gap between them. The inner circumferential wall at the top of the agitator base 4, the annular groove 30, and the outer circumferential wall of the agitator sleeve 5 form a second collection trough 12. This allows particles that escape the retaining sleeve C10 to pass directly into the second collection trough 12 through the gap b between the agitator sleeve 5 and the perforation of the powder cup cover 1, facilitating their entry into the second collection trough 12. In addition, the gap between the bottom end of the mounting base 2 and the stopper sleeve C10 and the bottom of the outer annular slot 28, the gap b between the stirring shaft sleeve 5 and the through-hole of the powder cup cover 1, the second collecting groove 12, and the gap between the top end of the stirring base 4 and the inner annular slot 27 are connected in sequence to form a labyrinthine channel. Even if there is a gap between the stirring base 4 and the inner annular slot 27, particles are not likely to fall into the powder cup cover 1 through this gap, thereby effectively preventing particles from contaminating the powder.

[0096] Considering the specific implementation of the first collecting tank 11, based on the above embodiment, please refer to Figure 3A radially protruding second profile 31 is also provided in the stirring seat 4. The outer diameter of the second profile 31 is smaller than the outer diameter of the first profile 29. The first collecting groove 11 is recessed downward on the step surface formed between the second profile 31 and the first profile 29, and the inner circumferential wall of the second profile 31 is clearance-matched with the packaging screw 7.

[0097] Specifically, the first contour 29 and the second contour 31 are also cylindrical, and the two are arranged in sequence on the inner wall of the stirring seat 4 from top to bottom, and the outer diameter of the second contour 31 is smaller than the outer diameter of the second contour 31. Therefore, the bottom end of the stirring sleeve 5 can abut against the step surface formed between the second contour 31 and the first contour 29, and the first collecting groove 11 is set in the downward groove corresponding to the internal position of the stirring sleeve 5 on this step surface. In this way, the first collecting groove 11 corresponds to the gap between the connecting stirring sleeve 5 and the sub-packaging fixed sleeve 6 and the gap between the sub-packaging fixed sleeve 6 and the sub-packaging screw 7. Even if the particles leak out of the baffle sleeve placed in the gap, they will be collected by the first collecting groove 11.

[0098] It should be noted that the screw body 7a passes through the second profile 31 and is connected to the screw shaft 7b. The screw body 7a is rotatable, thereby providing a clearance fit between the screw body 7a and the inner circumferential wall of the second profile 31. Because the second collecting groove 12 is concave downward, particles that escape the stopper A8 or B are unlikely to pass through the gap between the screw body 7a and the inner circumferential wall of the second profile 31 and fall into the powder cup 1.

[0099] Preferably, the annular groove 30 and the first collecting groove 11 are both dovetail grooves. Since the dovetail groove is an inclined groove body and the depth of the dovetail groove from the groove bottom is relatively large, the particles falling into the dovetail groove are not easy to leak out, thereby further preventing the particles in the dovetail groove from falling into the powder cup cover 1.

[0100] Considering how to optimize the particle collection effect of the first collecting tank 11, based on the above embodiment, please refer to Figure 3 The bottom end of the stopper sleeve A8, the bottom end of the sub-packaging fixed sleeve 6, the bottom end of the stopper sleeve B9 and the bottom end of the stirring sleeve 5 are all flush with the side wall of the first collecting tank 11, and the side wall of the first collecting tank 11 is arranged opposite the stopper sleeve B9, and the other side wall is arranged beyond the stopper sleeve A8 and adjacent to the sub-packaging screw 7.

[0101] First, the bottom ends of stopper sleeve A8, sub-packing fixed sleeve 6, stopper sleeve B9, and agitator sleeve 5 are flush. Consequently, stopper sleeve A8 blocks most particles generated between the sub-packing screw 7 and the sub-packing fixed sleeve 6, and stopper sleeve B9 blocks most particles generated between the sub-packing fixed sleeve 6 and the agitator sleeve 5, thereby reducing the frequency of cleaning the first collection tank 11. Second, both stopper sleeves A8 and B9 are flush with one side wall of the first collection tank 11. As a result, particles that escape from stopper sleeve A8 or stopper sleeve B9 fall more smoothly into the first collection tank 11, making it easier for the first collection tank 11 to collect particles. Third, the groove wall on the other side of the first collecting groove 11 is arranged beyond the stopper A8 and adjacent to the filling screw 7, so that the groove opening of the first collecting groove 11 completely covers the position of the stopper A8 and the stopper B9, thereby ensuring that the particles leaking out of the stopper A8 or the stopper B9 fall smoothly into the first collecting groove 11, thereby preventing the particles from falling into the powder cup cover 1 through the gap between the filling screw 7 and the inner peripheral wall of the second contour 31.

[0102] For further optimization, please refer to Figure 3 An outwardly protruding annular outer edge 32 is provided on the rod wall of the dispensing screw 7 between the stopper sleeve A8 and the first collecting trough 11. The other side wall of the first collecting trough 11 is located directly below and adjacent to the annular outer edge 32. Thus, on the one hand, the annular outer edge 32 blocks particles from entering the gap between the dispensing screw 7 and the inner circumferential wall of the second profile 31, thereby completely preventing particles from falling into the powder cup 1. On the other hand, the annular outer edge 32 also guides the particles downward, allowing them to fall smoothly into the first collecting trough 11. In short, the annular outer edge 32 ensures that all particles that escape the stopper sleeve A8 or the stopper sleeve B9 fall into the first collecting trough 11, effectively preventing particles from falling into the powder cup 1 and contaminating the drug powder.

[0103] Preferably, the annular outer edge 32 is in a dovetail cone shape, and even if the outer diameter of the annular outer edge 32 gradually increases from top to bottom, it not only better guides the particles to fall into the first collecting trough 11, but also better blocks the gap between the filling screw 7 and the inner circumferential wall of the second profile 31.

[0104] Considering the specific implementation of the powder feeding component, based on the above embodiment, please refer to Figure 4 and Figure 5 The powder feeding components include a powder feeding tube 33, an aluminum barrel 35, a powder feeding screw 34 and a screw drive assembly.

[0105] The powder delivery pipe 33 comprises an integrally formed vertical pipe section 33a and a horizontal pipe section 33b. The vertical pipe section 33a is connected to the aluminum barrel 35 via a regulating valve 36. Preferably, the regulating valve 36 can be a butterfly valve with strong flow capacity and low resistance. The first end of the horizontal pipe section 33b is inserted into the powder cup cover 1 and communicates with its interior. The powder delivery screw 34 is disposed within the horizontal pipe section 33b, with a preset gap between the outer circumferential wall of the powder delivery screw 34 and the inner circumferential wall of the horizontal pipe section 33b. The second end of the powder delivery screw 34, which extends through the horizontal pipe section 33b, is connected to a screw drive assembly. Thus, when the regulating valve 36 is opened, the powder in the aluminum barrel 35 falls into the horizontal pipe section 33b through the vertical pipe section 33a. The screw drive assembly then rotates the powder delivery screw 34, continuously conveying the powder into the powder cup cover 1 along the line 7b of the screw axis.

[0106] The powder feeding component with the above-mentioned structure has the following effects: First, in the prior art, the aluminum barrel 35 is connected to the powder bin, and then the powder is transported to the powder cup cover 1 through the powder bin. Compared with the prior art, the powder bin is larger in volume and easier to retain powder. The powder feeding pipe 33 of the present application is directly connected to the aluminum barrel 35, which reduces the residual powder, that is, reduces the tailing of the powder. Since the powder cannot be recycled again, the cost is reduced; second, a reserved gap is left between the outer peripheral wall of the powder feeding screw 34 and the inner peripheral wall of the horizontal tube section 33b. The size of this gap is small, so that the powder feeding screw 34 with a larger diameter can be set in the horizontal tube section 33b to enhance the powder feeding effect of the powder feeding screw 34, thereby further reducing the residual powder and greatly reducing the cost.

[0107] In this embodiment, the vertical pipe section 33a is detachably connected to the aluminum barrel 35, and the first end of the horizontal pipe section 33b is detachably connected to the powder cup cover 1, and the second end is detachably connected to the screw drive assembly, so that the powder feeding tube 33 can be disassembled and assembled, which facilitates the cleaning of the powder feeding tube 33 and prevents the powder from being accumulated in the powder feeding tube 33 for a long time and affecting the feeding.

[0108] In this embodiment, the vertical tube section 33a is positioned adjacent to the second section of the horizontal tube section 33b to increase the powder's conveying distance within the powder feeding tube 33. It should be noted that when the powder feeding screw 34 rotates, it pushes the powder along the spiral line. Because the powder feeding screw 34 includes a spiral section, the powder is wrapped around the spiral line. As the powder feeding screw 34 rotates and moves forward, the powder feeding screw 34 has a certain stirring effect. Therefore, the powder has a longer conveying distance within the powder feeding tube 33, allowing for sufficient stirring of the powder, thereby achieving uniform powder density delivery to the powder cup 1, which in turn helps improve powder packaging accuracy.

[0109] In order to prevent the powder delivery pipe 33 from communicating with the outside world, based on the above embodiment, please refer to Figure 5A powder feeding retaining ring A37 and a powder feeding retaining ring B38 are provided between the transverse tube section 33b and the powder feeding screw 34. The two are arranged in sequence along the direction from the second end of the transverse tube section 33b to its first end and are adjacent to the second end of the transverse tube section 33b.

[0110] Among them, the outer peripheral wall of the powder feeding retaining ring A37 is fixedly connected to the inner peripheral wall of the horizontal tube section 33b, and the inner peripheral wall is clearance-matched with the powder feeding screw 34; the outer peripheral wall of the powder feeding retaining ring B38 is clearance-matched with the inner peripheral wall of the horizontal tube section 33b, and the inner peripheral wall is fixedly connected to the powder feeding screw 34; the opposite sides of the powder feeding retaining ring A37 and the powder feeding retaining ring B38 are docked through mutually staggered and matched annular concave-convex structures and are clearance-rotatably matched.

[0111] Specifically, powder-feeding retaining ring A37 and powder-feeding retaining ring B38 are disposed within the second end of the powder-feeding tube 33. The outer circumferential wall of powder-feeding retaining ring A37 is fixedly connected to the inner circumferential wall of the transverse tube section 33b, with no gap therebetween. A gap is left between the inner circumferential wall of powder-feeding retaining ring A37 and the outer circumferential wall of the powder-feeding screw 34 to prevent interference with the rotation of the powder-feeding screw 34. The inner circumferential wall of powder-feeding retaining ring B38 is fixedly connected to the outer circumferential wall of the powder-feeding screw 34, with no gap therebetween. A gap is left between the outer circumferential wall of powder-feeding retaining ring B38 and the inner circumferential wall of the transverse tube section 33b to prevent contact or collision between powder-feeding retaining ring B38 and the transverse tube section 33b as the powder-feeding screw 34 rotates. A first annular concave-convex structure is provided at the end of the powder feeding retaining ring A37 facing the powder feeding retaining ring B38, and a second annular concave-convex structure is provided at the end of the powder feeding retaining ring B38 facing the powder feeding retaining ring A37. The two annular concave-convex structures are butted together with a gap left. This not only enables the relative rotation of the powder feeding retaining ring A37 and the powder feeding retaining ring B38 without interfering with the rotation of the powder feeding screw 34 relative to the horizontal tube section 33b, but also allows the gap left by the butt of the two annular concave-convex structures to form a labyrinthine channel. On the one hand, it reduces the leakage of powder in the powder feeding tube 33 to the outside, thereby reducing powder waste. On the other hand, it prevents external impurities from entering the powder feeding tube 33 and contaminating the powder, ensuring the sterility of the powder, thereby improving the production quality of the powder-liquid double-chamber bag.

[0112] Optionally, the annular concave-convex structure is formed by a number of annular protrusions arranged at equal intervals, whereby the annular groove formed between two adjacent annular protrusions in the first annular concave-convex structure can be inserted into the annular protrusion in the second annular concave-convex structure opposite thereto, thereby realizing the docking of the opposite sides of the powder feeding retaining ring A37 and the powder feeding retaining ring B38 through the mutually staggered and matched annular concave-convex structures.

[0113] Considering the specific implementation of the screw drive assembly, based on the above embodiment, please refer to Figure 5The screw drive assembly includes a powder feeding support seat 39, a powder feeding rotating sleeve 40 and a driving mechanism. The powder feeding support seat 39 is arranged on the first end of the horizontal tube section 33b. The powder feeding rotating sleeve 40 can be rotatably sleeved in the powder feeding support seat 39 and is coaxial with the horizontal tube section 33b. The outlet portion of the powder feeding screw 34 is inserted into the powder feeding rotating sleeve 40, and a powder feeding retaining ring C41 that is locked with the powder feeding screw 34 is provided at the sleeve mouth of the powder feeding rotating sleeve 40; the driving mechanism is connected to the powder feeding rotating sleeve 40 for driving the powder feeding rotating sleeve 40 to rotate.

[0114] Specifically, the powder feeding support seat 39 is connected to the second end of the transverse tube section 33b via a clamp 52, thereby achieving a detachable connection between the screw drive assembly and the powder feeding tube 33, facilitating the disassembly and assembly of the powder feeding tube 33. The powder feeding rotary sleeve 40 is rotatably mounted in the powder feeding support seat 39 via a bearing D. The powder feeding rotary sleeve is coaxially arranged with the transverse tube section 33b to facilitate the insertion of the powder feeding screw 34 in the transverse tube section 33b into the powder feeding rotary sleeve. The end of the powder feeding screw 34 away from the powder cup cover 1 passes through the transverse tube section 33b and is inserted into the powder feeding rotary sleeve. It is then sealed and locked at the sleeve opening of the powder feeding rotary sleeve 40 by a powder feeding retaining ring C41. This not only connects the powder feeding screw 34 to the powder feeding rotary sleeve 40, but also isolates the powder feeding rotary sleeve 40 from the outside world, preventing external impurities from entering the powder feeding tube 33 through the powder feeding rotary sleeve 40, avoiding contamination of the powder, ensuring the sterility of the powder, and thus improving the production quality of the powder-liquid dual-chamber bag. In addition, the powder feeding rotating sleeve 40 is connected to the driving mechanism, and the driving mechanism drives the powder feeding rotating sleeve 40 to rotate, and then drives the powder feeding screw 34 to rotate, thereby realizing powder transportation.

[0115] Optionally, a powder feeding seat 53 is provided between the powder feeding screw 34 and the clamp 52 , and the powder feeding seat 53 facilitates the smooth rotation of the powder feeding screw 34 .

[0116] In this embodiment, please refer to Figure 5 The driving mechanism includes a powder feeding motor 42, a powder feeding pinion 43 and a powder feeding large gear 44. The powder feeding motor 42 is fixed on a support platform located on one side of the powder cup cover 1, and the output shaft of the powder feeding motor 42 is parallel to the powder feeding rotating shaft sleeve 40. The powder feeding pinion 43 is sleeved on the output shaft of the powder feeding motor 42, and the powder feeding large gear 44 is sleeved on the powder feeding rotating shaft sleeve 40. The powder feeding pinion 43 is meshed with the powder feeding large gear 44.

[0117] In this way, the powder feeding motor 42 drives the powder feeding pinion 43 to rotate, the powder feeding pinion 43 drives the powder feeding gear 44 to rotate, and the powder feeding gear 44 drives the powder feeding rotating sleeve 40 to rotate. As a result, the driving force of the powder feeding motor 42 is transmitted to the powder feeding rotating sleeve 40 through the gear transmission, so that the powder feeding screw 34 is driven by the powder feeding rotating sleeve 40 to rotate and transport the powder. The use of gear transmission not only realizes the transmission of the output shaft of the powder feeding motor 42 and the powder feeding rotating sleeve 40, which are parallel in space, but also drives the powder feeding screw 34 to rotate smoothly and efficiently.

[0118] Optional, please refer to Figure 4 The support platform is composed of a support column 50 and a support box 51. The support box 51 is set on the support column 50, and the interior of the support box 51 is hollow. The powder feeding motor 42 is set in the support box 51 to prevent external dust from falling into the powder feeding motor 42 and affecting normal operation.

[0119] In order to reduce the dust flying and ensure the welding quality of powder-liquid double chamber bag, please refer to the above examples. Figure 6 The present application also includes a lifting component, which includes a lifting funnel 45 and a lifting platform. The lifting funnel 45 is covered on the outer periphery of the powder dropping funnel 3, and the lifting funnel 45 is arranged on the lifting platform. The lifting platform is used to drive the lifting funnel 45 to move up and down.

[0120] It should be noted that the funnel is generally composed of an inverted cone-shaped funnel body and a funnel mouth arranged at the bottom end of the funnel body. The lifting funnel 45 and the powder dropping funnel 3 of the present application both adopt a funnel with this structural arrangement.

[0121] Specifically, a lifting platform is set directly below the powder dropping funnel 3, and the lifting platform can be moved up and down. A lifting funnel 45 is provided at the top of the lifting platform, and the maximum outer diameter of the funnel body of the lifting funnel 45 is larger than the bottom outer diameter of the funnel body of the blanking funnel, so that the lifting funnel 45 covers the bottom periphery of the blanking funnel under the lifting action of the lifting platform, even if the funnel mouth of the blanking funnel is inserted into the lifting funnel 45.

[0122] Thus, during the powder packaging operation, the lifting platform raises the lifting funnel 45 to the periphery of the powder drop hopper 3. At this point, the funnel mouth of the lifting funnel 45 is inserted into the bottom of the powder-liquid dual-chamber bag. It should be noted that the powder-liquid dual-chamber bag is clamped and fixed by the clamping assembly of the synchronous belt conveyor system. Its specific structure can be referred to in the prior art. It is not the focus of improvement in this application and will not be described in detail herein. The powder in the powder cup cover 1 then falls into the lifting funnel 45 through the powder drop hopper 3 and then directly falls into the bottom of the powder-liquid dual-chamber bag through the funnel mouth of the lifting funnel 45. This prevents the powder from sticking to the side walls or outer surface of the bag, thereby ensuring the quality of the weld between the powder chamber and the solvent chamber.

[0123] In the present application, multiple powder cup covers 1 are provided, and two dispensing components, two stirring components, and two powder drop funnels 3 are provided corresponding to the powder cup covers 1. Thus, the powder-liquid dual-chamber bag powder dispensing device can simultaneously perform pharmaceutical dispensing operations on multiple powder-liquid dual-chamber bags, greatly improving the production efficiency of the powder-liquid dual-chamber bags.

[0124] For further information, please refer to Figure 6 In order to adapt to the simultaneous packaging operation of multiple powder-liquid dual-chamber bags, the lifting platform includes at least two lifting drivers 46 and a support plate 47. At least two lifting drivers 46 are arranged at intervals along the arrangement direction of the multiple powder cup covers 1. The support plate 47 is horizontally arranged on the output shaft of the lifting driver 46. Multiple lifting funnels 45 are arranged in a one-to-one correspondence with the multiple powder dropping funnels 3 and are arranged on the support plate 47, so that the lifting platform can stably drive the multiple lifting funnels 45 to move up and down, thereby realizing the simultaneous packaging operation of multiple powder-liquid dual-chamber bags.

[0125] Optionally, a powder return pipe communicating with the interior of the lifting funnel 45 is provided to recycle the medicine powder retained in the lifting funnel 45 to save costs.

[0126] For further optimization to reduce dusting, please refer to Figure 6 In order to ensure the welding quality of the powder-liquid dual-chamber bag, based on the above embodiment, the present application further includes a light-irradiation static eliminator 48, which is arranged near the powder drop funnel 3. Therefore, during the powder packaging operation, the light-irradiation static eliminator 48 uses photoionization technology to generate soft X-rays, and simultaneously generates positive and negative ions in equal amounts, quickly and efficiently eliminating static electricity near the powder drop funnel 3 and the lifting funnel 45 arranged around its periphery, thereby further ensuring the welding quality between the powder chamber and the solvent chamber.

[0127] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0128] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0129] The above describes in detail the powder-liquid dual-chamber bag powder dispensing device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that for those skilled in the art, various improvements and modifications can be made to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A powder-liquid double-chamber bag powder packaging device, characterized in that: include: A powder cup cover (1) is provided with a mounting seat (2) at its top end, and a powder drop funnel (3) communicating with the interior of the powder cup cover (1) is provided at its bottom end; A powder feeding component, connected to the powder cup cover (1), and used for feeding medicine powder into the interior of the powder cup cover (1); A stirring component, comprising a stirring seat (4) and a stirring shaft sleeve (5), wherein the stirring seat (4) is located inside the powder cup cover (1), and the stirring shaft sleeve (5) is rotatably sleeved in the mounting seat (2) and passes through the powder cup cover (1) to be inserted into the stirring seat (4), and is used to drive the stirring blades (16) on the periphery of the stirring seat (4) to rotate; A sub-packaging component comprises a sub-packaging fixed shaft sleeve (6) and a sub-packaging screw (7), wherein the sub-packaging fixed shaft sleeve (6) is sleeved in the stirring shaft sleeve (5) and is clearance-matched therewith, and the sub-packaging screw (7) is rotatably sleeved in the sub-packaging fixed shaft sleeve (6) and passes through the stirring seat (4) and extends into the powder dropping funnel (3); A stopper sleeve A (8) is provided between the sub-packaging screw (7) and the sub-packaging fixed shaft sleeve (6), a stopper sleeve B (9) is provided between the sub-packaging fixed shaft sleeve (6) and the stirring shaft sleeve (5), and a first collecting tank (11) is provided in the bottom of the stirring seat (4) directly below the stopper sleeve A (8) and the stopper sleeve B (9); A stop sleeve C (10) is provided between the stirring shaft sleeve (5) and the mounting seat (2), and a second collecting tank (12) is provided in the top of the stirring seat (4) directly below the stop sleeve C (10).

2. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: The stirring seat (4), the stirring shaft sleeve (5) and the powder dropping funnel (3) are coaxially arranged, and a plurality of stirring blades (16) are evenly arranged on the periphery of the stirring seat (4) around the axis of the stirring seat (4), and each stirring blade (16) extends into the powder dropping funnel (3) and is clearance-matched therewith.

3. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: The sub-packaging fixed shaft sleeve (6), the sub-packaging screw (7) and the powder dropping funnel (3) are coaxially arranged, and the bottom of the sub-packaging screw (7) is inserted into the funnel mouth of the powder dropping funnel (3) and is clearance-matched therewith.

4. The powder-liquid dual-chamber bag powder packaging device according to claim 3, characterized in that: The funnel mouth cover of the powder dropping funnel (3) is provided with a tightening mouth (17), and the tightening mouth (17) is provided with a notch coaxial with the powder dropping funnel (3).

5. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: The powder cup cover (1) is provided with a transparent observation window, and a powder level detector is provided at the transparent observation window for real-time monitoring of the powder level in the powder cup cover (1) and transmitting the information to a control system. The control system is electrically connected to the powder feeding component and is used to control the amount of powder delivered by the powder feeding component into the powder cup cover (1).

6. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: An inner annular slot (27) is provided on the inner wall of the top end of the stirring seat (4), and the top end of the stirring seat (4) is embedded in the inner annular slot (27) and is clearance-matched with the inner annular slot (27).

7. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: An outer annular slot (28) is provided on the top outer wall of the stirring seat (4), and the bottom end of the mounting seat (2) is flush with the bottom end of the stop sleeve C (10), and the two are embedded in the outer annular slot (28) and a gap is left between them and the bottom of the outer annular slot (28).

8. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: The stirring seat (4) is cylindrical, and a radially protruding first profile (29) is provided in the stirring seat (4). A downwardly recessed annular groove (30) is provided on a step surface formed between the first profile (29) and the inner peripheral wall of the top end of the stirring seat (4). The stirring shaft sleeve (5) contacts and cooperates with the inner peripheral wall of the first profile (29). The inner peripheral wall of the top end of the stirring seat (4), the annular groove (30) and the outer peripheral wall of the stirring shaft sleeve (5) form the second collecting tank (12).

9. The powder-liquid dual-chamber bag powder packaging device according to claim 8, characterized in that: A radially protruding second profile (31) is further provided in the stirring seat (4), the outer diameter of the second profile (31) being smaller than the outer diameter of the first profile (29), the first collecting groove (11) being recessed downwardly on the step surface formed between the second profile (31) and the first profile (29), and the inner peripheral wall of the second profile (31) is clearance-matched with the dispensing screw (7).

10. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: The bottom end of the stopper sleeve A (8), the bottom end of the sub-packaging fixed shaft sleeve (6), the bottom end of the stopper sleeve B (9) and the bottom end of the stirring shaft sleeve (5) are all flush with the side wall of the first collecting tank (11), and the side wall of the first collecting tank (11) is arranged opposite to the stopper sleeve B (9), and the other side wall is arranged beyond the stopper sleeve A (8) and adjacent to the sub-packaging screw (7).

11. The powder-liquid dual-chamber bag powder packaging device according to claim 10, characterized in that: The packing screw (7) is provided with an outwardly protruding annular outer edge (32) on the rod wall between the stop sleeve A (8) and the first collecting groove (11), and the groove wall on the other side of the first collecting groove (11) is located directly below and adjacent to the annular outer edge (32).

12. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: The powder feeding component includes: A powder delivery pipe (33) comprises an integrally formed vertical pipe section (33a) and a horizontal pipe section (33b), wherein the vertical pipe section (33a) is connected to the aluminum barrel (35) via a regulating valve (36), and a first end of the horizontal pipe section (33b) is inserted into the powder cup cover (1) and communicates with the interior thereof; A powder feeding screw (34) is arranged in the transverse tube section (33b), a preset gap is left between the outer peripheral wall of the powder feeding screw (34) and the inner peripheral wall of the transverse tube section (33b), and the second end of the powder feeding screw (34) passing through the transverse tube section (33b) is connected to the screw drive assembly.

13. The powder-liquid dual-chamber bag powder packaging device according to claim 12, characterized in that: A powder feeding retaining ring A (37) and a powder feeding retaining ring B (38) are provided between the transverse tube section (33b) and the powder feeding screw (34), and the two are arranged in sequence along the direction from the second end of the transverse tube section (33b) to the first end thereof and are adjacent to the second end of the transverse tube section (33b); The outer peripheral wall of the powder feeding retaining ring A (37) is fixedly connected to the inner peripheral wall of the transverse tube section (33b), and the inner peripheral wall is clearance-matched with the powder feeding screw (34); The outer peripheral wall of the powder feeding retaining ring B (38) is clearance-matched with the inner peripheral wall of the transverse tube section (33b), and the inner peripheral wall is fixedly connected to the powder feeding screw (34); The powder feeding retaining ring A (37) and the powder feeding retaining ring B (38) are connected on opposite sides through mutually staggered and matched annular concave-convex structures and are rotated with clearance.

14. The powder-liquid dual-chamber bag powder packaging device according to claim 12, characterized in that: The screw drive assembly comprises: The powder feeding support seat (39) is arranged on the first end of the transverse pipe section (33b). A powder feeding rotating sleeve (40) is rotatably sleeved in the powder feeding support seat (39) and is coaxial with the horizontal pipe section (33b); a through-hole of the powder feeding screw (34) is inserted into the powder feeding rotating sleeve (40), and a powder feeding retaining ring C (41) is provided at the sleeve opening of the powder feeding rotating sleeve (40) and is locked with the powder feeding screw (34); A driving mechanism is connected to the powder feeding rotating shaft sleeve (40) and is used to drive the powder feeding rotating shaft sleeve (40) to rotate.

15. The powder-liquid dual-chamber bag powder packaging device according to claim 1, characterized in that: It also includes a lifting component, which includes a lifting funnel (45) and a lifting platform. The lifting funnel (45) is covered on the outer periphery of the powder dropping funnel (3), and the lifting funnel (45) is arranged on the lifting platform. The lifting platform is used to drive the lifting funnel (45) to move up and down.

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