Powder-liquid double-chamber bag powder feeding device

Abstract

The utility model relates to the technical field of powder feeding devices, in particular to a powder-liquid double-chamber bag powder feeding device which comprises a machine frame and a powder feeding assembly installed on the machine frame. The powder feeding assembly comprises a powder cylinder installed on the rack, a feeding port is formed in the top of the powder cylinder, and a discharging port is formed in one end of the powder cylinder. A powder feeding screw is arranged in the powder cylinder, and the end, away from the discharging port, of the powder feeding screw is rotationally connected with the powder cylinder. The inner diameter of the powder barrel is matched with the outer diameter of the powder feeding screw rod, the interior of the powder barrel is cylindrical, powder in the material barrel can move downwards under the action of gravity and is conveyed to the discharging port through the powder feeding screw rod, compared with a rectangular powder storage bin, the amount of powder possibly accumulated in the powder barrel is small, and under the condition that the inner diameter of the powder barrel is matched with the outer diameter of the powder feeding screw rod, the powder can be conveyed to the discharging port through the powder feeding screw rod. And meanwhile, compared with a rectangular powder storage bin, dead corners in the charging basket are fewer, cleaning is more convenient, and potential safety hazards are eliminated. The utility model has the advantage that the working process is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of powder feeding devices, specifically to a powder-liquid dual-chamber bag powder feeding device. Background Technology

[0002] The powder-liquid dual-chamber bag is a ready-to-use product. This infusion bag is divided into two independent chambers, one containing the injectable solvent and the other containing the drug powder. Before clinical use, medical staff simply apply pressure to the liquid chamber, detach the weakly welded separator between the two chambers to allow them to connect, and shake to mix thoroughly. This ensures the injectable solvent and drug powder are fully mixed for clinical use. It features quick and convenient operation, is particularly suitable for earthquake relief and the resuscitation of critically ill patients, and significantly improves the safety and reliability of infusion use.

[0003] For related technologies, please refer to Chinese invention patent with publication number CN110949772A, which discloses a double-chamber bag powder filling and sealing system, including a workbench and a powder filling device installed above the workbench. The powder filling device includes a rectangular powder storage bin with a filling funnel at the bottom. In the actual powder filling process, the powder is pre-stored in the powder storage bin. The motor at the top of the powder storage bin drives the screw to rotate, so that the powder in the powder storage bin falls smoothly into the powder chamber of the powder-liquid double-chamber bag through the filling funnel.

[0004] The aforementioned solutions have the following drawbacks: Firstly, the powder around the screw is gradually pushed into the filling funnel. Secondly, a certain accumulation height of the powder needs to be ensured in the powder storage bin. Thirdly, after filling, powder remains around the screw in the storage bin and cannot be reused, resulting in powder waste. Additionally, the rectangular storage bin has dead corners, making it difficult to clean the accumulated powder. Fourthly, the drive motor drives the feeding screw and stirring rod synchronously via a gear set, and the complex structure and friction between components easily generate foreign matter, affecting the quality of subsequent products. Therefore, these solutions require further improvement. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a powder-liquid dual-chamber bag feeding device, which solves the problem that the existing powder filling device includes a rectangular powder storage bin. During the powder filling process, it is necessary to ensure that the powder has a certain accumulation height in the powder storage bin. Moreover, after the powder filling is completed, the powder around the screw will remain in the powder storage bin, and this part of the powder can no longer be used, thus causing waste of powder and the problem that the medicine is difficult to clean when it accumulates in dead corners.

[0006] A powder-liquid dual-chamber bag feeding device includes a frame and a powder feeding assembly mounted on the frame; the powder feeding assembly includes a powder cylinder mounted on the frame, with a feed inlet at the top and a discharge outlet at one end; a powder feeding screw is installed inside the powder cylinder, with the end of the powder feeding screw away from the discharge outlet rotatably connected to the powder cylinder.

[0007] Furthermore, it includes a drive device; the drive device includes a drive seat mounted on the frame, and a transmission shaft is rotatably connected inside the drive seat; the end of the powder feeding screw away from the discharge port passes through the powder cylinder and is connected to the transmission shaft, and the end of the transmission shaft away from the powder feeding screw is connected to a second drive gear, the second drive gear is used to transmit power with the first drive gear, the first drive gear is mounted on a drive motor, and the drive motor is mounted on the frame.

[0008] Furthermore, a maze is provided inside the powder cylinder, and the maze is fitted onto the end of the powder feeding screw away from the discharge port.

[0009] Furthermore, the transmission shaft is connected to the second drive gear via a fastening nut.

[0010] Furthermore, the drive base is connected to the frame via a support base.

[0011] Furthermore, a hopper is provided on the frame, and the hopper is connected to the discharge port of the powder cylinder.

[0012] Furthermore, a material hopper is provided at the feed inlet, and a butterfly valve is provided between the material hopper and the feed inlet.

[0013] Furthermore, the drive shaft and the powder feeding screw are integrally formed.

[0014] Beneficial effects: The inner diameter of the powder cylinder is matched with the outer diameter of the powder feeding screw. The inside of the powder cylinder is cylindrical. The powder in the cylinder will move downward under the action of gravity and be conveyed to the discharge port by the powder feeding screw. Compared with the rectangular powder storage bin, the amount of powder that may accumulate in the powder cylinder is less. When the inner diameter of the powder cylinder is matched with the outer diameter of the powder feeding screw, the amount of drug accumulation can be reduced or even avoided. At the same time, compared with the rectangular powder storage bin, there are fewer dead corners in the cylinder, making it easier to clean. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a cross-sectional view of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the powder feeding assembly according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the drive seat structure according to an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the maze structure according to an embodiment of the present invention.

[0020] In the diagram: 1. Frame; 2. Drive motor; 3. First drive gear; 4. Fastening nut; 5. Second drive gear; 6. Drive base; 601. Transmission shaft; 7. Labyrinth; 8. Material hopper; 9. Powder cylinder; 10. Butterfly valve; 11. Feed inlet; 12. Powder feeding screw; 13. Support base; 14. Discharge outlet; 15. Hopper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] like Figures 1-4 The illustrated powder-liquid dual-chamber bag feeding device includes a feeding assembly and a drive mechanism. The feeding assembly includes a horizontally arranged powder cylinder 9, with a discharge port 14 at one end and a feed port 11 at the top. A feeding screw 12 is disposed inside the powder cylinder 9, with the end of the feeding screw 12 opposite to the discharge port 14 passing through the powder cylinder 9 and connected to the drive mechanism. The drive mechanism drives the feeding screw 12 to rotate. The powder cylinder 9 is cylindrical. The end of the feeding screw 12 opposite to the discharge port 14 is rotatably connected to the powder cylinder 9.

[0024] In this embodiment, the inner diameter of the powder cylinder 9 is adapted to the outer diameter of the powder feeding screw 12. The inside of the powder cylinder 9 is cylindrical. The powder in the material bucket 8 will move downward under the action of gravity and be conveyed to the discharge port 14 by the powder feeding screw 12. Compared with the rectangular powder storage chamber, the amount of powder that may accumulate in the powder cylinder 9 is less. When the inner diameter of the powder cylinder 9 is adapted to the outer diameter of the powder feeding screw 12, the amount of drug accumulation can be reduced or even avoided. At the same time, compared with the rectangular powder storage chamber, there are fewer dead corners in the material bucket 8, making it easier to clean.

[0025] The system also includes a frame 1, on which the powder feeding assembly and drive mechanism are mounted. A powder cylinder 9 is fixedly connected to one side of the frame 1. The drive mechanism includes a drive base 6, which is mounted on the frame 1. A transmission shaft 601 is rotatably connected to the drive base 6. One end of the transmission shaft 601 is connected to the powder feeding screw 12, and the other end is connected to a second drive gear 5 via a fastening nut 4. The second drive gear 5 is used to transmit power with a first drive gear 3, which is mounted on a drive motor 2, which is also mounted on the frame 1. Preferably, the transmission shaft 601 and the powder feeding screw 12 are integrally formed. The drive base 6 is existing technology.

[0026] In this embodiment, the drive mechanism has a simple structure, is easy to install and use, and provides fast and reliable transmission.

[0027] A material bucket 8 is provided at the feed inlet 11 at the top of the powder cylinder 9, and a butterfly valve 10 is provided between the material bucket 8 and the feed inlet 11.

[0028] In this embodiment, a butterfly valve 10 is provided to facilitate control of the falling speed of the powder.

[0029] The discharge port 14 of the powder cylinder 9 is connected to the hopper 15 for feeding materials into the hopper 15, which is mounted on the frame 1.

[0030] In this embodiment, the hopper 15 is used to collect the material inside the powder cylinder 9.

[0031] The powder cylinder 9 is also equipped with a maze 7, which is located at the end of the powder feeding screw 12 away from the discharge port 14. The maze 7 is existing technology.

[0032] In this embodiment, one side of the maze 7 is close to the side of the powder cylinder 9 away from the discharge port 14, which is used to block the powder and prevent it from moving towards the drive seat 6. The drive seat 6 is connected to the frame 1 through the support seat 13.

[0033] Working principle: Powder is added into the material hopper 8, and the powder in the material hopper 8 is moved into the powder cylinder 9 by the butterfly valve 10; the drive motor 2 is started, and the drive motor 2 drives the first drive gear 3 to rotate. The first drive gear 3 and the second drive gear 5 are driven to rotate. The second drive gear 5 drives the transmission shaft 601 to rotate. The transmission shaft 601 drives the powder feeding screw 12 to rotate. The powder feeding screw 12 sends the powder to the discharge port 14 of the powder cylinder 9. The powder at the discharge port 14 enters the material bin 15.

[0034] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A powder-liquid dual-chamber bag feeding device, characterized in that, It includes a frame and a powder feeding assembly mounted on the frame; the powder feeding assembly includes a powder cylinder mounted on the frame, with a feed inlet at the top and a discharge outlet at one end; a powder feeding screw is installed inside the powder cylinder, with the end of the powder feeding screw away from the discharge outlet rotatably connected to the powder cylinder; the inside of the powder cylinder is cylindrical.

2. The powder-liquid dual-chamber bag feeding device according to claim 1, characterized in that, The device includes a drive unit; the drive unit includes a drive base mounted on a frame, and a transmission shaft is rotatably connected inside the drive base; the end of the powder feeding screw away from the discharge port passes through the powder cylinder and is connected to the transmission shaft, and the end of the transmission shaft away from the powder feeding screw is connected to a second drive gear, the second drive gear is used to transmit power with a first drive gear, the first drive gear is mounted on a drive motor, and the drive motor is mounted on the frame.

3. The powder-liquid dual-chamber bag feeding device according to claim 2, characterized in that, The powder cylinder is equipped with a maze, which is fitted onto the end of the powder feeding screw away from the discharge port.

4. The powder-liquid dual-chamber bag feeding device according to claim 2, characterized in that, The drive shaft is connected to the second drive gear by a fastening nut.

5. The powder-liquid dual-chamber bag feeding device according to claim 2, characterized in that, The drive base is connected to the frame via a support base.

6. The powder-liquid dual-chamber bag feeding device according to claim 2, characterized in that, The frame is equipped with a hopper, which is connected to the discharge port of the powder cylinder.

7. The powder-liquid dual-chamber bag feeding device according to claim 2, characterized in that, A material hopper is provided at the feed inlet, and a butterfly valve is provided between the material hopper and the feed inlet.

8. The powder-liquid dual-chamber bag feeding device according to claim 2, characterized in that, The drive shaft and the powder feeding screw are integrally formed.

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