Powder and liquid double-chamber bag powder split charging device

Abstract

The invention discloses a powder-liquid double-chamber bagged powder split charging device, which comprises a powder cup cover, a powder cup cover, a powder inlet, a powder outlet, a powder outlet, a powder outlet and a powder outlet, wherein the top end of the powder cup cover is provided with a mounting seat; 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 invention relates to the technical field of powder-liquid double-chamber bag manufacturing machinery, and more specifically to a powder-liquid double-chamber bag powder dispensing 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 the injection solvent 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 driven 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 into the powder chamber.

[0004] It is understandable that since the powder-liquid dual-chamber bag is used for clinical medical drug dispensing, it is necessary to ensure that the amount of powder packed into the powder chamber meets the required amount and remains sterile, that is, the quality of the powder-liquid dual-chamber bag meets the standard to ensure the safety of clinical drug use. To meet this requirement, the powder-liquid dual-chamber bag powder dispensing device needs to have good dispensing accuracy and ensure the sterility of the powder. However, the existing dual-chamber bag powder dispensing device not only has poor dispensing accuracy, but also the friction of the rotating parts will produce 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 a problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0006] In view of this, an object 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 object, the present invention provides the following technical solutions:

[0008] A powder-liquid double-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 which is provided with a powder dropping funnel communicated with the interior of the powder cup cover;

[0010] A powder delivery component, connected to the powder cup cover, and used for delivering medicine powder to the inside of 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 comprises 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 is clearance-matched 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] Wherein, 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, 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 dispensing fixed shaft sleeve, the dispensing screw and the powder falling funnel are coaxially arranged, and the bottom of the dispensing screw is inserted into the funnel mouth of the powder falling funnel and is gap-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 real-time monitoring of the powder level in the powder cup cover and transmitting it to a control system. The control system is connected to the powder feeding component by electrical signals for controlling the amount of powder delivered by the powder feeding component into the powder cup cover.

[0019] Preferably, an inner ring 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 ring slot and is gap-matched with the inner ring 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, and both are embedded in the outer annular slot with a gap 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, and 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 groove.

[0022] Preferably, a radially protruding second contour is also 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 arranged 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 stopper sleeve A, the bottom end of the filling fixed sleeve, the bottom end of the stopper 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 stopper sleeve B, and the other side wall passes over the stopper sleeve A and is arranged adjacent to the filling screw.

[0024] Preferably, the rod wall of the dispensing screw located between the stop sleeve A and the first collecting groove is provided with an outwardly protruding annular outer edge, 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 comprises:

[0026] The powder delivery pipe comprises 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 a first end of the horizontal pipe section is inserted into the powder cup cover and communicated with the interior thereof;

[0027] A powder feeding screw is arranged in the transverse tube section, a preset gap is left 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 a screw driving assembly.

[0028] Preferably, a powder delivery retaining ring A and a powder delivery retaining ring B are provided between the transverse tube section and the powder delivery 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 transverse tube section, and the inner peripheral wall is gap-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 transverse tube section, and the inner peripheral wall is fixedly connected to the powder feeding screw;

[0031] The two opposite sides of the powder feeding retaining ring A and the powder feeding retaining ring B are butted against each other through mutually staggered and matched annular concave-convex structures and are rotationally matched with clearance.

[0032] Preferably, the screw drive assembly comprises:

[0033] A powder delivery support seat is arranged on the first end of the horizontal pipe section,

[0034] A powder delivery rotating sleeve is rotatably sleeved in the powder delivery support seat and is coaxial with the horizontal pipe section, a passing portion of the powder delivery screw is inserted into the powder delivery rotating sleeve, and a powder delivery retaining ring C is provided at the sleeve opening of the powder delivery rotating sleeve and is locked with the powder delivery 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] When the powder-liquid dual-chamber bag powder dispensing device provided by the present invention is in use, the powder delivery component delivers the powder to the inside of the powder cup cover, and the dispensing screw rotates relative to the dispensing fixed shaft sleeve to deliver the powder in the powder cup cover to the powder drop funnel and leak out from the powder drop funnel, thereby realizing the dispensing of the powder. At the same time, the stirring shaft sleeve rotates relative to the mounting seat and drives the stirring seat to rotate, so as to drive the stirring blade to rotate and stir the powder in the powder cup cover, thereby ensuring the uniformity of the powder, and then cooperate with the dispensing screw to improve the dispensing accuracy of the powder.

[0038] In addition, it should be noted that the rotation of the sub-packaging screw will cause particles to be generated between it and the sub-packaging fixed shaft sleeve, and because the sub-packaging screw needs to pass through the stirring seat and extend into the powder dropping funnel, the stirring seat must have a through hole for the sub-packaging screw to pass through. Moreover, the sub-packaging screw can be rotatably arranged, so there must be a gap a between the sub-packaging screw and the through hole, and the particles will fall into the powder cup cover through the gap a. To avoid this phenomenon, the present application uses a stopper sleeve A to prevent most of the particles between the sub-packaging screw and the sub-packaging fixed shaft sleeve from falling. Even if a trace amount of particles leaks from the stopper sleeve A, they will fall into the first collection tank and be collected.

[0039] The rotation of the stirring sleeve will cause particles to be generated between it and the sub-packaging fixed sleeve. Since the stirring sleeve is inserted into the stirring seat, the particles generated in the gap between the stirring sleeve and the sub-packaging fixed sleeve will also fall into the powder cup cover through the gap a. To avoid this phenomenon, the present application uses a stopper sleeve B to block most of the particles between the stirring sleeve and the sub-packaging fixed sleeve from falling. Even if a small amount of particles leaks from the stopper sleeve B, they will fall into the first collection tank and be collected.

[0040] The rotation of the stirring sleeve will also cause particles to be generated between it and the mounting seat. Since the stirring sleeve needs to pass through the powder cup cover, the top of the powder cup cover must have a through hole for the stirring sleeve to pass through. Moreover, the stirring sleeve can be rotatably arranged, so there must be a gap b between the stirring sleeve and the through hole, and the particles will fall into the powder cup cover through the gap b. To avoid this phenomenon, the present application uses a stopper sleeve C to prevent most of the particles between the stirring sleeve and the mounting seat from falling. Even if a trace amount of particles leaks from the stopper 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, the baffle sleeve B and the 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 collecting groove and the second collecting groove 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 prevent 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

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

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

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

[0047] Figure 4 A side view of the powder-liquid double-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-illumination static eliminator and the lifting funnel provided by the present invention.

[0050] Reference numerals:

[0051] 1-powder cup cover; 2-mounting seat; 3-powder funnel; 4-stirring seat; 5-stirring shaft sleeve; 6-packing fixed shaft sleeve; 7-packing screw; 7a-screw body; 7b-screw shaft; 8-stop sleeve A; 9-stop sleeve B; 10-stop 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-packing servo motor; 19-driving motor seat; 20-coupling; 21-stirring end cover; 22-packing end cover; 23-stirring motor fixed seat; 24-stirring servo motor; 25-stirring connecting seat; 26-stirring gear; 27-inner annular slot; 28-outer annular slot; 29-first contour; 30-annular groove; 31-second contour; 32-annular outer edge; 33-powder delivery pipe; 33a-vertical pipe section; 33b-horizontal pipe section; 34-powder delivery screw; 35-aluminum barrel; 36-regulating valve; 37-powder delivery retaining ring A; 38-powder delivery retaining ring B; 39-powder delivery support seat; 40-powder delivery rotating sleeve; 41-powder delivery retaining ring C; 42-powder delivery motor; 43-powder delivery small gear; 44-powder delivery large gear; 45-lifting funnel; 46-lifting drive; 47-support plate; 48-light-emitting static eliminator; 49-shield; 50-support column; 51-support box; 52-clamp; 53-powder delivery 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] The core 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.

[0054] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", and "third" are only used for descriptive purposes and cannot be understood 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 end 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 end of the powder cup cover 1.

[0057] The powder delivery component is connected to the powder cup cover 1 and is used for delivering medicine powder to the inside of 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, so as to drive the stirring blades 16 on the periphery of the stirring seat 4 to rotate.

[0059] The packing components include a packing fixed sleeve 6 and a packing screw 7. The packing fixed sleeve 6 is sleeved in the stirring sleeve 5 and has a clearance fit therewith. The packing screw 7 is rotatably sleeved in the packing 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 stopper 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 stopper sleeve C10 .

[0062] Please refer to Figure 2 The function of the stirring component is to stir the powder in the powder cup cover 1, and the stirring component mainly includes a stirring seat 4 and a stirring shaft sleeve 5. The stirring shaft sleeve 5 is arranged in the mounting seat 2, and a gap is left between the stirring shaft sleeve 5 and the mounting seat 2. A bearing A13 is arranged in the gap, that is, the bearing A13 is placed between the stirring shaft sleeve 5 and the mounting seat 2 to realize the rotation of the stirring shaft sleeve 5 relative to the mounting seat 2; the stirring seat 4 is located inside the powder cup cover 1 and is arranged near the top of the powder cup cover 1. The top of the powder cup cover 1 is provided with a through hole. The stirring shaft sleeve 5 passes through the through hole and is fixedly connected to the stirring seat 4 to drive the stirring seat 4 to rotate, thereby driving the stirring blades 16 arranged on the periphery of the stirring seat 4 to rotate, thereby realizing the stirring of the powder in the powder cup cover 1.

[0063] Please refer to Figure 2The function of the above-mentioned packing components is to transport the powder in the powder cup cover 1 to the powder falling funnel 3 for leakage, and it mainly includes a packing fixed shaft sleeve 6 and a packing screw 7. Among them, the packing fixed shaft sleeve 6 is sleeved in the stirring shaft sleeve 5, and the packing fixed shaft sleeve 6 is fixedly arranged, and a gap is left between the stirring shaft sleeve 5 and the packing fixed shaft sleeve 6 to avoid the packing fixed shaft sleeve 6 interfering with the stirring shaft sleeve 5 and hindering the rotation of the stirring shaft sleeve 5; the packing screw 7 is sleeved between the packing fixed shaft sleeves 6 and a gap is left between the two, and a bearing B14 is arranged in the gap to realize the rotation of the packing screw 7 relative to the packing fixed shaft sleeve 6, and the packing screw 7 penetrates the stirring seat 4 and extends into the powder falling funnel 3, and uses the friction between the packing screw 7 and the powder to push the stirred material into the powder falling funnel 3, so as to realize the leakage of the powder in the powder cup cover 1. It should be noted that the powder-liquid double-chamber bag is transported to the entire bottom of the powder-falling funnel 3 through the synchronous belt conveyor system, whereby the medicine powder leaks from the powder-falling funnel 3 to the medicine powder chamber in the powder-liquid double-chamber bag.

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

[0065] Please refer to Figure 3 In order to prevent the above-mentioned particles from falling into the powder cup cover 1, a stopper sleeve A8 is provided between the sub-packaging screw 7 and the sub-packaging fixed shaft sleeve 6, and a stopper sleeve B9 is provided between the sub-packaging fixed shaft sleeve 6 and the stirring shaft sleeve 5. Thus, the stopper sleeve A8 can prevent most of the particles generated by the relative rotation of the sub-packaging screw 7 and the sub-packaging fixed shaft sleeve 6 from falling, and the stopper sleeve B9 can prevent most of the powder particles generated by the relative rotation of the stirring shaft sleeve 5 and the sub-packaging fixed shaft sleeve 6 from falling.

[0066] Furthermore, a first collecting groove 11 is provided in the bottom of the stirring seat 4 directly below the stopper sleeve A8 and the stopper sleeve B9, which is equivalent to providing the first collecting groove 11 at the bottom of the through hole of the stirring seat 4, and the first collecting groove 11 is located directly below the stopper sleeve A8 and the stopper sleeve B9. Therefore, even if a small amount of particles leak out of the stopper sleeve A8 or the stopper sleeve B9, they will fall into the first collecting groove 11 and be collected, so as to effectively prevent the particles from falling into the powder cup cover 1 through the gap a and contaminating the medicine powder.

[0067] It can also be known from the above description that the stirring sleeve 5 needs to pass through the powder cup cover 1 and be inserted into the stirring seat 4 located inside the powder cup cover 1. It is not difficult 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, and since the stirring sleeve 5 is rotatable, there must be a gap b between the stirring sleeve 5 and the through hole. Therefore, the particles generated by the relative rotation of the stirring sleeve 5 and the mounting seat 2 will fall into the powder cup cover 1 through the gap b.

[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 seat 2. Thus, the stopper sleeve C10 can prevent the particles generated by the relative rotation of the stirring shaft sleeve 5 and the mounting seat 2 from falling.

[0069] Furthermore, a second collecting groove 12 is provided in the top of the stirring seat 4 directly below the stopper sleeve C10, which is equivalent to providing the second collecting groove 12 at the top of the through hole of the stirring seat 4, and the second collecting groove 12 is located directly below the stopper sleeve C10. Therefore, even if a small amount of particles leak out of the stopper sleeve C10, they will fall into the second collecting groove and be collected, so as to effectively prevent the particles from falling into the powder cup cover 1 through the gap b and contaminating the medicine powder.

[0070] Preferably, the top of the stirring base 4 is disposed 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 stopper sleeve C10 are collected by the second collecting groove 12 , and to prevent particles from falling directly into the powder cup cover 1 .

[0071] In summary, the present application has the following beneficial effects: first, while the packing component realizes the conveying of the medicine powder, the stirring component fully stirs the medicine powder in the powder cup cover 1, so that the packing component and the stirring component cooperate to convey the evenly stirred medicine powder out of the powder cup cover 1, thereby improving the powder packing accuracy; second, the baffle sleeve A8, the baffle sleeve B9 and the baffle sleeve C10 form the 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 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 1 and contaminating the medicine powder.

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

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

[0074] Preferably, the top and bottom ends of the mounting seat 2 are both set as open ends, and the top end of the mounting seat 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 dispensing screw 7 for the top end of the dispensing screw 7 to pass through, and the end of the through hole away from the mounting seat 2 is provided with a dispensing end cover 22 detachable from the stirring end cover 21. The driving motor seat 19 is provided on the stirring end cover 21 and the dispensing end cover 22. The dispensing screw 7 passes through the through hole on the dispensing end cover 22 to be connected to the output shaft of the dispensing servo motor 18. Therefore, while the dispensing screw 7 passes through the top opening of the mounting seat 2, the stirring end cover 21 and the dispensing end cover 22 jointly cover and seal the top opening of the mounting seat 2 to prevent foreign matter from entering the mounting seat 2 and affecting the rotation of the dispensing 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-packing screw 7 includes a screw body 7a and a screw shaft 7b arranged in sequence from top to bottom. The screw body 7a is rotatably sleeved in the sub-packing fixed shaft sleeve 6, and one end of the screw body 7a extends out of the top of the mounting seat 2 to connect the sub-packing servo motor 18, and the other end passes through the stirring seat 4 to connect one end of the screw shaft 7b, and the other end of the screw shaft 7b extends into the powder dropping funnel 3. Therefore, the sub-packing screw 7 is a split structure composed of the screw body 7a and the screw shaft 7b, which is not only convenient for the processing and manufacturing of the sub-packing screw 7, but also better adapts to being placed between the sub-packing servo motor 18 and the dropping funnel at a long distance.

[0076] Considering the specific implementation method of driving the stirring shaft sleeve 5 to rotate, based on the above embodiment, please refer to Figure 2 and Figure 4The stirring component also includes a stirring sleeve 5 driving mechanism, which includes a stirring motor fixing seat 23, a stirring servo motor 24, a speed reducer and a stirring gear 26. The stirring motor fixing seat 23 is arranged at the top of the powder cup cover 1. The stirring servo motor 24 is connected to the speed reducer and fixed on the stirring motor fixing seat 23. The output shaft of the speed reducer is connected to the stirring gear 26 through the stirring connecting seat 25. The mounting seat 2 is provided with a notch at the position corresponding to the stirring gear 26. The stirring gear 26 passes through the notch and fits with the outer peripheral wall of the stirring sleeve 5. Thus, the stirring sleeve 5 can be driven to rotate by the stirring servo motor 24 and the speed reducer.

[0077] In order to improve the production efficiency of the powder-liquid dual-chamber bag, in this embodiment, the powder cup cover 1 is provided with at least two stirring components, at least two dispensing components and at least two powder dropping funnels 3, and the stirring components, the dispensing components and the powder dropping funnels 3 are arranged one by one. Thus, one powder cup cover 1 can be used to simultaneously fill at least two powder-liquid dual-chamber bags with medicinal powder, thereby improving the production efficiency of the powder-liquid dual-chamber bag.

[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 meshed 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 driving mechanism of the stirring shaft sleeve 5 and the driving mechanism of the dispensing screw 7 are arranged in the protective cover 49 to prevent external dust from falling into the driving mechanism of the stirring shaft sleeve 5 and the driving mechanism of the dispensing screw 7 and affecting normal operation.

[0080] In order to further optimize and improve the powder packaging accuracy, based on the above embodiments, 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 around the axis of the stirring seat 4 on the outer periphery of the stirring seat 4, and each stirring blade 16 extends into the powder falling funnel 3 and fits with the gap therein.

[0081] On the one hand, a plurality of stirring blades 16 are evenly arranged on the periphery of the stirring seat 4, and the stirring blades 16 extend into the powder dropping funnel 3, thereby being able to fully stir the powder placed at the bottom of the powder cup cover 1, so as to fully stir the powder to be dropped, which is conducive to improving the powder filling accuracy, thereby ensuring that the quality of the powder-liquid double-chamber bag is up to standard. On the other hand, the stirring seat 4 and the stirring shaft sleeve 5 are coaxially arranged with the powder dropping funnel 3, thereby, the stirring shaft sleeve 5 drives the plurality of stirring blades 16 to rotate stably through the stirring seat 4, which is conducive to the plurality of stirring blades 16 always taking the powder dropping funnel 3 as the axis without deviation, so as to avoid the stirring blades 16 and the powder dropping funnel 3 from contacting and colliding and affecting the powder dropping, thereby being conducive to improving the powder filling accuracy, thereby ensuring that the quality of the powder-liquid double-chamber bag is up to standard.

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

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

[0084] Specifically, the packing fixed sleeve 6, the screw body 7a and the screw shaft 7b in the packing 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 be connected to the packing servo motor 18, and the other end passes through the stirring seat 4 to be connected 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 the gap is for the powder to pass through for dropping.

[0085] It can be understood that there is a long distance between the filling servo motor 18 and the powder dropping funnel 3, and the filling fixed sleeve 6, the filling screw 7 and the powder dropping funnel 3 are coaxially arranged, which can ensure the smooth rotation of the filling screw 7, that is, to ensure the smooth rotation of the screw shaft 7b, so as to avoid the 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 beneficial to improve the powder filling accuracy and thus ensure 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 embodiments, 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, the gap size is set smaller for powders with good fluidity, and the gap size is set larger for powders with poor fluidity. 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, on the basis of 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 with 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 of the medicine powder 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 medicine 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 medicine powder to the powder cup cover 1, so as to ensure that the powder level of the powder cup cover 1 is always in the target area, thereby facilitating the powder density at the bottom of the powder cup cover 1 to meet the requirements, thereby ensuring the stability of the powder filling amount, that is, facilitating the improvement of the powder filling 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 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 loosely matched with the inner annular slot 27 .

[0091] On the one hand, the top of the stirring seat 4 is fitted with the inner annular slot 27 to avoid interference between the stirring seat 4 and the inner annular slot 27 when the stirring seat 4 rotates, thereby ensuring the smooth rotation of the stirring seat 4. On the other hand, the top of the stirring seat 4 is embedded in the inner annular slot 27, which significantly reduces the top gap between the stirring seat 4 and the powder cup cover 1, so as to effectively prevent the powder from entering the powder cup cover 1. As a result, the particles generated between the mounting seat 2 and the stirring shaft sleeve 5 leak out from the stopper sleeve C10, and the leaked particles can all fall into the second collecting tank 12 through the gap b between the stirring shaft sleeve 5 and the top of the powder cup cover 1, thereby effectively preventing the particles from falling into 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 top outer wall 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 , 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 .

[0093] On the one hand, the bottom end of the mounting seat 2 is flush with the stopper sleeve C10 to prevent the particles generated between the mounting seat 2 and the stirring shaft sleeve 5 from falling directly into the second collection tank 12 without being blocked by the stopper sleeve C10, that is, the stopper sleeve C10 blocks most of the particles generated between the mounting seat 2 and the stirring shaft sleeve 5, which is conducive to reducing the frequency of cleaning the second collection tank 12. On the other hand, the bottom end of the mounting seat 2 is inserted into the outer annular slot 28 together with the stopper sleeve C10 to prevent some particles that leak out of the stopper sleeve C10 from falling outside the powder cup cover 1, thereby ensuring that all particles that leak out of the stopper sleeve C10 are collected in the second collection tank 12, thereby facilitating subsequent centralized cleaning by the staff. It should be noted that there is a gap between the bottom end of the mounting seat 2 and the stopper sleeve C10 and the bottom of the outer annular slot 28 to ensure that the particles that leak out of the stopper sleeve C10 smoothly 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 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 shaft sleeve 5 is in contact 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 shaft sleeve 5 form a second collecting tank 12.

[0095] Specifically, the stirring seat 4 is cylindrical, that is, the stirring seat 4 has a through hole for inserting the stirring sleeve 5, the sub-packaging fixed sleeve 6 and the sub-packaging screw 7. The stirring sleeve 5 is in contact with the inner circumferential wall of the first profile 29, and there is no gap between the two. The inner circumferential wall at the top of the stirring seat 4, the annular groove 30 and the outer circumferential wall of the stirring sleeve 5 form a second collecting groove 12. In this way, the particles leaking out of the stopper sleeve C10 can directly fall into the second collecting groove 12 through the gap b between the stirring sleeve 5 and the perforation of the powder cup cover 1, which facilitates the particles to fall into the second collecting groove 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 labyrinth channel. Even if there is a gap between the stirring base 4 and the inner annular slot 27, it is not easy for particles to fall into the powder cup cover 1 through this gap, thereby effectively avoiding particle contamination of 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, and 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 dispensing 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 arranged in a downward groove corresponding to the internal position of the stirring sleeve 5 on the step surface. In this way, the first collecting groove 11 corresponds to the gap between the stirring sleeve 5 and the filling fixed sleeve 6 and the gap between the filling fixed sleeve 6 and the filling screw 7. Even if the particles leak out of the retaining 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 needs to pass through the second profile 31 to connect with the screw shaft 7b, and the screw body 7a can be rotatably arranged, so that the screw body 7a and the inner peripheral wall of the second profile 31 are gap-matched. Since the second collecting groove 12 is concave downward, the particles leaking out of the stopper A8 or B are not easy to fall into the powder cup cover 1 through the gap between the screw body 7a and the inner peripheral wall of the second profile 31.

[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 filling 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 to the stopper sleeve B9, and the other side wall is arranged beyond the stopper sleeve A8 and adjacent to the filling screw 7.

[0101] First, 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 flush, so that the stopper sleeve A8 blocks most of the particles generated between the sub-packaging screw 7 and the sub-packaging fixed sleeve 6, and the stopper sleeve B9 blocks most of the particles generated between the sub-packaging fixed sleeve 6 and the stirring sleeve 5, which is conducive to reducing the frequency of cleaning the first collection tank 11. Second, the stopper sleeve A8 and the stopper sleeve B9 are both flush with the side wall of the first collection tank 11, so that the particles leaking out of the stopper sleeve A8 or the stopper sleeve B9 fall into the first collection tank 11 more smoothly, that is, it is more convenient 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 sleeve A8 and adjacent to the dispensing screw 7, so that the groove opening of the first collecting groove 11 completely covers the positions of the stopper sleeve A8 and the stopper sleeve B9, thereby ensuring that the particles leaking out of the stopper sleeve A8 or the stopper sleeve B9 smoothly fall into the first collecting groove 11, thereby preventing the particles from falling into the powder cup cover 1 through the gap between the dispensing screw 7 and the inner circumferential wall of the second contour 31.

[0102] For further optimization, please refer to Figure 3 The rod wall of the dispensing screw 7 between the stopper sleeve A8 and the first collecting groove 11 is provided with an annular outer edge 32 protruding outward, 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. Therefore, on the one hand, the annular outer edge 32 plays a role in shielding particles from entering the gap between the dispensing screw 7 and the inner peripheral wall of the second profile 31, thereby completely preventing particles from falling into the powder cup cover 1; on the other hand, the annular outer edge 32 also plays a role in guiding the particles to fall, thereby guiding the particles to fall smoothly into the first collecting groove 11. In short, the annular outer edge 32 can ensure that all particles that leak out of the stopper sleeve A8 or the stopper sleeve B9 fall into the first collecting groove 11, thereby effectively preventing particles from falling into the powder cup cover 1 and contaminating the medicine powder.

[0103] Preferably, the annular outer edge 32 is in a dovetail cone shape, so that even if the outer diameter of the annular outer edge 32 gradually increases from top to bottom, it can not only better guide the particles to fall into the first collecting tank 11, but also better block the gap between the dispensing 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 delivery components include a powder delivery tube 33, an aluminum barrel 35, a powder delivery screw 34 and a screw drive assembly.

[0105] The powder delivery pipe 33 includes 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 through a regulating valve 36. Preferably, the regulating valve 36 can be a butterfly valve with strong circulation capacity and low resistance. The first end of the horizontal pipe section 33b is inserted on the powder cup cover 1 and communicated with the inside thereof; the powder delivery screw 34 is arranged in the horizontal pipe section 33b, and a preset gap is left between the outer peripheral wall of the powder delivery screw 34 and the inner peripheral wall of the horizontal pipe section 33b, and the second end of the powder delivery screw 34 passing through the horizontal pipe section 33b is connected to the screw drive assembly. In this way, 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, and the screw drive assembly drives the powder delivery screw 34 to rotate, so that the powder is continuously transported to the powder cup cover 1 along the line direction of the screw shaft 7b.

[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 to reduce the residual powder, that is, to reduce the tailing of the powder. Since the powder cannot be recycled again, the cost is further 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 transverse 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 transverse 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, 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 delivery tube 33 can be disassembled and assembled, which is convenient for cleaning the powder delivery tube 33 and preventing the powder from being accumulated in the powder delivery tube 33 for a long time and affecting the feeding.

[0108] In this embodiment, the vertical tube section 33a is arranged close to the second section of the horizontal tube section 33b to increase the conveying stroke of the powder in the powder feeding tube 33. It should be noted that when the powder feeding screw 34 rotates, it will push the powder to move along the spiral line. Since the powder feeding screw 34 is provided with a spiral section in a spiral shape, the powder will be wrapped around the spiral line and move forward as the powder feeding screw 34 rotates, so that the powder feeding screw 34 has a certain stirring effect. Therefore, the powder has a large conveying stroke in the powder feeding tube 33, and the powder can be fully stirred, so as to realize the delivery of powder with uniform density to the powder cup cover 1, which is also conducive to improving the powder packaging accuracy.

[0109] In order to prevent the powder delivery pipe 33 from being connected to the outside, based on the above embodiment, please refer to Figure 5A powder delivery retaining ring A37 and a powder delivery retaining ring B38 are provided between the transverse tube section 33b and the powder delivery screw 34. 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.

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

[0111] Specifically, the powder delivery retaining ring A37 and the powder delivery retaining ring B38 are arranged inside the second end of the powder delivery tube 33, and the outer peripheral wall of the powder delivery retaining ring A37 is fixedly connected to the inner peripheral wall of the horizontal tube section 33b, and there is no gap between the two. The inner peripheral wall of the powder delivery retaining ring A37 and the outer peripheral wall of the powder delivery screw 34 have a gap so as not to affect the rotation of the powder delivery screw 34. The inner peripheral wall of the powder delivery retaining ring B38 is fixedly connected to the outer peripheral wall of the powder delivery screw 34, and there is no gap between the two. The outer peripheral wall of the powder delivery retaining ring B38 and the inner peripheral wall of the horizontal tube section 33b have a gap so that the powder delivery retaining ring B38 does not contact and collide with the horizontal tube section 33b when the powder delivery screw 34 rotates. A first annular concave-convex structure is provided at the end of the powder feeding baffle A37 facing the powder feeding baffle B38, and a second annular concave-convex structure is provided at the end of the powder feeding baffle B38 facing the powder feeding baffle 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 baffle A37 and the powder feeding baffle B38 without interfering with the rotation of the powder feeding screw 34 relative to the transverse tube section 33b, but also allows the gap left by the butt of the two annular concave-convex structures to form a maze-like channel. On the one hand, it reduces the leakage of powder in the powder feeding tube 33 to the outside to reduce the waste of powder. On the other hand, it prevents external impurities from entering the powder feeding tube 33 to contaminate the powder, ensures the sterility of the powder, and thus improves the production quality of the powder-liquid double-chamber bag.

[0112] Optionally, the annular concave-convex structure is formed by a plurality 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 stop ring A37 and the powder feeding stop ring B38 through the annular concave-convex structures that are staggered and matched with each other.

[0113] Considering the specific implementation of the screw drive assembly, based on the above embodiment, please refer to Figure 5The screw driving 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 in the powder feeding rotating sleeve 40, and a powder feeding retaining ring C41 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, and is used to drive the powder feeding rotating sleeve 40 to rotate.

[0114] Specifically, the powder delivery support seat 39 is connected to the second end of the transverse tube section 33b through a clamp 52 to achieve a detachable connection between the screw drive assembly and the powder delivery tube 33, which is convenient for disassembling and assembling the powder delivery tube 33. The powder delivery rotating sleeve 40 is rotatably sleeved in the powder delivery support seat 39 through a bearing D, and the powder delivery rotating sleeve is coaxially arranged with the transverse tube section 33b to facilitate the insertion of the powder delivery screw 34 in the transverse tube section 33b into the powder delivery rotating sleeve. The end of the powder delivery screw 34 away from the powder cup cover 1 passes through the transverse tube section 33b and is inserted into the powder delivery rotating sleeve and is sealed and locked at the sleeve of the powder delivery rotating sleeve 40 through a powder delivery retaining ring C41, which not only realizes the connection between the powder delivery screw 34 and the powder delivery rotating sleeve 40, but also blocks the powder delivery rotating sleeve 40 from the outside, preventing external impurities from entering the powder delivery tube 33 through the powder delivery rotating sleeve 40, avoiding contamination of the powder, ensuring the sterility of the powder, and thus improving the production quality of the powder-liquid double 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 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 sleeve 40. The powder feeding pinion 43 is sleeved on the output shaft of the powder feeding motor 42, and the powder feeding gear 44 is sleeved on the powder feeding rotating sleeve 40. The powder feeding pinion 43 is meshed and connected with the powder feeding 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 large gear 44 to rotate, and the powder feeding large gear 44 drives the powder feeding rotating sleeve 40 to rotate, thereby transmitting the driving force of the powder feeding motor 42 to the powder feeding rotating sleeve 40 through gear transmission, so as to realize the powder feeding screw 34 to rotate and transport the powder through the powder feeding rotating sleeve 40. The gear transmission can not only realize the transmission between the output shaft of the powder feeding motor 42 and the powder feeding rotating sleeve 40 which are parallel in space, but also can drive 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 arranged on the support column 50, and the interior of the support box 51 is hollow. The powder feeding motor 42 is arranged 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 powder flying and ensure the welding quality of the powder-liquid double chamber bag, please refer to 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 structure.

[0121] Specifically, a lifting platform is arranged directly below the powder dropping funnel 3, and the lifting platform can be moved up and down. A lifting funnel 45 is arranged 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 material dropping funnel, so that the lifting funnel 45 covers the bottom periphery of the material dropping funnel under the lifting action of the lifting platform, even if the funnel mouth of the material dropping funnel is inserted into the lifting funnel 45.

[0122] In this way, when performing the powder packaging operation, the lifting platform lifts the lifting funnel 45 to the periphery of the powder dropping funnel 3. At this time, the funnel mouth of the lifting funnel 45 is inserted into the bottom of the powder-liquid double-chamber bag. It should be noted that the powder-liquid double-chamber bag is clamped and fixed by the clamping assembly of the synchronous belt conveyor system. Its specific structure can refer to the prior art. It is not the focus of improvement of this application, so it is not described in detail herein. Then, the powder in the powder cup cover 1 falls into the lifting funnel 45 through the powder dropping funnel 3, and then directly falls into the bottom of the powder-liquid double-chamber bag through the funnel mouth of the lifting funnel 45 to avoid the powder sticking to the side wall of the bag or the outer surface of the bag, thereby ensuring the welding quality of the weld between the powder chamber and the solvent chamber.

[0123] In the present application, the powder cup cover 1 is provided in plurality, and the powder cup cover 1 is provided with two dispensing parts, two stirring parts and two powder dropping funnels 3. Thus, the powder-liquid double chamber bag powder dispensing device can simultaneously perform medicine dispensing operations on multiple powder-liquid double chamber bags, greatly improving the production efficiency of the powder-liquid double chamber bags.

[0124] For further information, please refer to Figure 6 In order to adapt to the simultaneous medicine 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 one by one corresponding to 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 medicine packaging operation of multiple powder-liquid dual-chamber bags.

[0125] Optionally, a powder return pipe connected to 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 dust, please refer to Figure 6 In order to ensure the welding quality of the powder-liquid double chamber bag, on the basis of the above embodiment, the present application further includes a light-irradiation static eliminator 48, which is arranged near the powder dropping funnel 3. Therefore, when performing 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, so as to quickly and efficiently eliminate static electricity near the powder dropping funnel 3 and the lifting funnel 45 arranged on its periphery, thereby further ensuring the welding quality of the weld 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 is a detailed introduction to the powder-liquid dual-chamber bag powder packaging device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these 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), the top of which is provided with a mounting seat (2), and the bottom of the powder cup cover (1) is provided with a powder dropping funnel (3) which is in communication with the interior thereof; A powder delivery component connected to the powder cup cover (1) and used for delivering medicine powder to 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 inside 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; The dispensing component comprises a dispensing fixed shaft sleeve (6) and a dispensing screw (7), wherein the dispensing fixed shaft sleeve (6) is sleeved in the stirring shaft sleeve (5) and is clearance-matched therewith, and the dispensing screw (7) is rotatably sleeved in the dispensing fixed shaft sleeve (6) and passes through the stirring seat (4) and extends into the powder falling 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 stopper 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 stopper sleeve C (10).

2. The powder-liquid double-chamber bag powder packaging device according to claim 1, characterized in that: 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 is gap-matched therewith.

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

4. The powder-liquid double-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 double-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 connected to the powder delivery component by electrical signals and is used to control the amount of powder delivered by the powder delivery component into the powder cup cover (1).

6. The powder-liquid double-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 double-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 double-chamber bag powder packaging device according to claim 1, characterized in that: 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 a step surface formed between the first contour (29) and the inner peripheral wall of the top end of the stirring seat (4); the stirring shaft sleeve (5) is in contact with and fits with the inner peripheral wall of the first contour (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 groove (12).

9. The powder-liquid double-chamber bag powder packaging device according to claim 8, characterized in that: A 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 provided on a step surface formed between the second profile (31) and the first profile (29) and is recessed downward; and the inner peripheral wall of the second profile (31) is clearance-matched with the dispensing screw (7).

10. The powder-liquid double-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 a side wall of the first collecting tank (11), and a 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 double-chamber bag powder packaging device according to claim 10, characterized in that: The dispensing screw (7) is provided with an outwardly protruding annular outer edge (32) on a rod wall located 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 double-chamber bag powder packaging device according to claim 1, characterized in that: The powder feeding component comprises: The 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 delivery screw (34) is arranged in the transverse tube section (33b), a preset gap is left between the outer peripheral wall of the powder delivery screw (34) and the inner peripheral wall of the transverse tube section (33b), and the second end of the powder delivery screw (34) passing through the transverse tube section (33b) is connected to a screw drive assembly.

13. The powder-liquid double-chamber bag powder packaging device according to claim 12, characterized in that: A powder delivery retaining ring A (37) and a powder delivery retaining ring B (38) are provided between the transverse tube section (33b) and the powder delivery 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 delivery 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 delivery screw (34); The outer peripheral wall of the powder delivery 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 delivery screw (34); The two opposite sides of the powder delivery retaining ring A (37) and the powder delivery retaining ring B (38) are butted against each other through mutually staggered and matched annular concave-convex structures and are rotationally matched with clearance.

14. The powder-liquid double-chamber bag powder packaging device according to claim 12, characterized in that: The screw drive assembly comprises: The powder delivery support seat (39) is arranged on the first end of the transverse pipe section (33b). A powder delivery rotating shaft sleeve (40) is rotatably sleeved in the powder delivery support seat (39) and is coaxial with the transverse tube section (33b); a protruding portion of the powder delivery screw (34) is inserted into the powder delivery rotating shaft sleeve (40), and a powder delivery retaining ring C (41) that is locked with the powder delivery screw (34) is provided at the sleeve opening of the powder delivery rotating shaft sleeve (40); 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, the lifting component including a lifting funnel (45) and a lifting platform, the lifting funnel (45) is covered on the outer periphery of the powder falling funnel (3), the lifting funnel (45) is arranged on the lifting platform, and the lifting platform is used to drive the lifting funnel (45) to move up and down.

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