Medicament subpackaging device

Abstract

The utility model relates to the technical field of biopharmacy, in particular to a medicament split charging device which comprises a stock bin and a plurality of split charging hoppers arranged at the bottom of the stock bin, a pushing device is vertically arranged in each split charging hopper, a lower hopper opening of each split charging hopper is connected with a three-way electromagnetic valve, and the lower hopper opening of each split charging hopper is connected with the corresponding three-way electromagnetic valve. And two valve ports of the three-way electromagnetic valve are respectively connected with the sealed feeding nozzle and the vacuum pipeline. Compared with the prior art, the medicament subpackaging device is simple in structure, convenient to install and maintain, safe and reliable, air in a medicament bottle sleeved on the sealed feeding nozzle can be emptied through linkage of the vacuum pipeline and the pushing mechanism, negative pressure is formed, medicament fluid is more convenient to flow, and the medicament subpackaging device is convenient to use. The mass of the fluid in unit space is increased, namely the density of the fluid is increased, so that the fluid with poor flowability can ensure enough split charging smoothness, and the split charging precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biopharmaceuticals, in particular to a medicine packaging device. Background Art

[0002] Finished pharmaceutical products made from biopharmaceuticals require the use of pharmaceutical filling devices to package the medicines. Most powder injection products use powder filling machines to package the powdered medicines. The powder filling machines fill sterile powder medicines in sterilized and dried glass bottles in a quantitative manner and seal them with rubber stoppers.

[0003] Compared with air flow filling machines, screw filling machines have the characteristics of high filling dose, low consumption, and no restrictions on the crystal shape of drug powders. They can also fill those drug powders with small specific gravity and large volume. Therefore, screw filling machines are increasingly widely used in the production of powder injection preparations. However, they cannot fill powders with very good or very poor fluidity, high viscosity or irregular particles. Even if some can be barely filled, the actual filling amount is not standard, which affects the product quality. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a medicine dispensing device, which solves the problems of poor fluidity, high viscosity or irregular particle powders, poor dispensing accuracy and inability to dispense medicine bottles with different calibers.

[0005] A medicine dispensing device includes a silo and a plurality of dispensing hoppers arranged at the bottom of the silo, wherein a pushing device is vertically arranged in the dispensing hopper, and the lower hopper opening of the dispensing hopper is connected to a three-way solenoid valve, and the two valve openings of the three-way solenoid valve are respectively connected to a sealed feeding nozzle and a vacuum pipeline. Specifically, when dispensing powdered medicine, the vacuum pipe is connected to a vacuum pump, and by controlling the three-way solenoid valve, the air in the medicine bottle connected to the sealed feeding nozzle is first emptied, and then the pushing device is started to feed the powdered medicine in the material box into the medicine bottle through the dispensing hopper. Through the negative pressure in the bottle, the fluid is made to flow more easily during the flow process, which increases the mass of the fluid in the unit space, that is, increases the density of the fluid, so that the fluid with poor fluidity can ensure sufficient dispensing fluency.

[0006] Furthermore, a bulge is formed upwardly in the middle of the bottom of the silo, and a plurality of the sub-packaging hoppers are evenly arranged around the bulge. Specifically, by arranging the bulge at the bottom of the silo, it is convenient for the powdered medicine to flow into each sub-packaging hopper.

[0007] Further, the pushing device includes a pushing screw vertically arranged in the sub-packaging hopper. The lower end of the pushing screw is close to the lower hopper opening of the sub-packaging hopper, and the upper end of the pushing screw is connected with a transmission rod. The upper ends of multiple transmission rods pass through the storage bin and are connected to the same driving device. Specifically, the driving device can drive multiple transmission rods to rotate simultaneously, thereby driving the pushing screw to rotate and sending the medicament in the sub-packaging hopper into the medicine bottle.

[0008] Further, the driving device includes multiple sub-gears, and each sub-gear is fixedly sleeved on the upper part of the transmission rod. Each sub-gear meshes with the same central gear. The central gear and the sub-gears are fixedly connected to the storage bin through a mounting frame, and the axis of the central gear is drivingly connected with a motor. Specifically, the central gear rotates driven by the motor and drives each sub-gear to rotate synchronously, thereby driving each transmission rod to rotate.

[0009] Further, the outer diameter of the thread of the pushing screw is not equal and gradually decreases. Specifically, there is a 0.2 mm gap between the pushing screw and the inner wall of the sub-packaging hopper to avoid contact.

[0010] Further, a stirring shaft is also vertically arranged in the storage bin. The upper end of the stirring shaft is fixedly connected to the axis of the central gear, and stirring blades are arranged on the stirring shaft. Specifically, the stirring shaft can stir the medicament in the storage bin, which can accelerate the strength and speed of loosening the medicinal powder, loosen the medicinal powder in the storage bin, make it not easy to agglomerate, and facilitate the accuracy of sub-packaging.

[0011] Further, the sealed feeding nozzle includes a pipe body, and the pipe body is detachably connected to a three-way solenoid valve. A cylindrical fixing seat is fixedly sleeved outside the pipe body, and a plurality of annular grooves are opened from top to bottom on the cylindrical fixing seat, and sealing rings are clamped in each annular groove. Specifically, the pipe body can be replaced correspondingly according to medicine bottles with different calibers. When the feeding nozzle is inserted into the medicine bottle, the sealing ring seals the bottle mouth of the medicine bottle, ensuring the filling efficiency and preventing the medicament from overflowing.

[0012] Further, the outer diameter of the sealing ring decreases successively from top to bottom. Specifically, this structure can further achieve the sealing of medicine bottles with different calibers.

[0013] Beneficial effects: Compared with the prior art, a medicament sub-packaging device provided by the present utility model has a simple structure, is convenient for installation and maintenance, is safe and reliable. Through the linkage of the vacuum pipeline and the pushing mechanism, the air in the medicine bottle sleeved on the sealed feeding nozzle can be evacuated first to form a negative pressure, making the medicament fluid more convenient to flow, increasing the mass of the fluid in the unit space, that is, increasing the fluid density, enabling the fluid with poor fluidity to ensure sufficient sub-packaging fluency and improving the sub-packaging accuracy. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is the internal structural schematic diagram of an embodiment;

[0016] Figure 3 is the structural schematic diagram of a sealed feeding nozzle;

[0017] Figure 4 is Figure 3 exploded structural schematic diagram of. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0019] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0020] Please refer to Figure 1-2, in an embodiment of the present application, a pharmaceutical powder filling device is provided, which includes a hopper 1 and a plurality of dosing hoppers 2 arranged at the bottom of the hopper 1. A pushing device 3 is vertically arranged in the dosing hopper 2. The lower hopper opening of the dosing hopper 2 is connected to a three-way solenoid valve 4, and the two valve ports of the three-way solenoid valve 4 are respectively connected to a sealed feeding nozzle 5 and a vacuum pipeline 6. Specifically, when filling powdered medicine, the vacuum pipeline is connected to a vacuum pump. By controlling the three-way solenoid valve, the air in the medicine bottle sleeved on the sealed feeding nozzle is first evacuated, and then the pushing device is started to send the powdered medicine in the hopper into the medicine bottle through the dosing hopper. Due to the negative pressure in the bottle, the fluid is more convenient to flow during the flowing process, increasing the mass of the fluid in the unit space, that is, increasing the fluid density, so that the fluid with poor fluidity can ensure sufficient filling fluidity.

[0021] In some specific embodiments, please refer to Figure 2 , a protrusion is formed upward in the middle of the bottom of the hopper 1, and the plurality of dosing hoppers 2 are uniformly arranged around the protrusion. It can be seen that by arranging the protrusion at the bottom of the hopper, it is convenient for the powdered medicine to flow into each dosing hopper.

[0022] In some specific embodiments, please refer to Figure 1 , the pushing device 3 includes a pushing screw 31 vertically arranged in the dosing hopper 2. The lower end of the pushing screw 31 is close to the lower hopper opening of the dosing hopper 2, and the upper end of the pushing screw 31 is connected with a transmission rod 32. The upper ends of the plurality of transmission rods 32 penetrate through the hopper 1 and are connected to the same driving device 7. Those skilled in the art can know that through the driving device, a plurality of transmission rods can be driven to rotate simultaneously, so as to drive the pushing screw to rotate and send the medicine in the dosing hopper into the medicine bottle.

[0023] In some specific embodiments, please refer to Figure 1 , the driving device 7 includes a plurality of sub-gears 71, and the sub-gears 71 are fixedly sleeved on the upper part of the transmission rod 32 one by one. Each sub-gear 71 meshes with the same central gear 72. The central gear 72 and the sub-gears 71 are fixedly connected to the hopper 1 through a mounting frame 73, and the axis of the central gear 72 is drivingly connected with a motor 74. Specifically, the central gear rotates under the drive of the motor and drives each sub-gear to rotate synchronously, so as to drive each transmission rod to rotate.

[0024] In other embodiments, the sub-gears and the central gear can be replaced by chain wheels and belt wheels. The chain wheels are drivingly connected by a chain or a belt, and can also drive each transmission rod to rotate through the motor, and their functions remain the same, which will not be elaborated here.

[0025] In some specific embodiments, referring to FIG. 2, a stirring shaft 8 is further vertically provided in the silo 1. The upper end of the stirring shaft 8 is fixedly connected to the axis of the central gear 72. Stirring blades 81 are provided on the stirring shaft 8. It can be seen that the medicament in the silo can be agitated through the stirring shaft, which can accelerate the strength and speed of loosening the powder, loosen the powder in the silo, making it not easy to agglomerate and facilitating the accuracy of sub-packaging.

[0026] In some specific embodiments, the outer diameters of the threads of the feeding screw 31 are not equal and gradually decrease. In a more optimal embodiment, there is a 0.2 mm gap between the feeding screw 31 and the inner wall of the sub-packaging hopper to avoid contact, and the thread pitches of the feeding screw 31 are equal.

[0027] In some specific embodiments, referring to Figure 3-4 , the sealed feeding nozzle 5 includes a pipe body 51. The pipe body 51 is detachably connected to the three-way solenoid valve 4. A cylindrical fixing seat 52 is fixedly sleeved outside the pipe body 51. A plurality of annular grooves 53 are opened vertically on the cylindrical fixing seat 52. Sealing rings 54 are clamped in each of the annular grooves 53. During actual use, the pipe body can be replaced accordingly according to medicine bottles with different diameters. When the feeding nozzle is inserted into the medicine bottle, the sealing ring seals the mouth of the medicine bottle, ensuring the filling efficiency and preventing the medicament from overflowing.

[0028] In some specific embodiments, the outer diameters of the sealing rings 54 decrease successively from top to bottom. It can be seen that sealing rings with different outer diameters can improve the sealing performance of the medicine bottle.

[0029] The following further illustrates the present utility model in combination with a specific application scenario:

[0030] A pharmaceutical powder dispensing device, comprising a storage bin 1 and a plurality of dispensing hoppers 2 provided at the bottom of the storage bin 1. A cover body 11 is provided at the top of the storage bin 1, and the cover body 11 is detachably connected to the storage bin 1. A stirring shaft 8 is vertically provided in the storage bin 1, and a pushing screw 31 is vertically provided in the dispensing hopper 2. The outer diameters of the threads of the pushing screw 31 are not equal and gradually decrease. The pushing screw 31 is kept at a gap of 0.2 mm from contacting the inner wall of the dispensing hopper, and the thread pitch of the pushing screw 31 is equal. The lower end of the pushing screw 31 is arranged near the lower hopper opening of the dispensing hopper 2. The upper end of the pushing screw 31 is connected with a transmission rod 32. The upper ends of the transmission rods 32 penetrate through the cover body and are fixedly sleeved with auxiliary gears 71. The upper end of the stirring shaft 8 penetrates through the cover body and is fixedly sleeved with a central gear 72. Each auxiliary gear 71 meshes with the same central gear 72. The central gear 72 and the auxiliary gears 71 are fixedly connected to the cover body through a mounting frame 73. The axis of the central gear 72 is drivingly connected with a motor 74. The central gear rotates under the drive of the motor and drives each auxiliary gear to rotate synchronously, so as to drive each transmission rod to rotate. By the central gear rotating under the drive of the motor and driving each auxiliary gear to rotate synchronously, the pushing screw is driven to rotate, and the pharmaceutical powder is pushed out from the lower hopper opening in the dispensing hopper. The lower hopper opening of the dispensing hopper 2 is connected with a three-way solenoid valve 4. One valve port of the three-way solenoid valve 4 is connected with a vacuum pipeline 6, and the other valve port of the three-way solenoid valve 4 is detachably connected with a pipe body 51. A cylindrical fixing seat 52 is fixedly sleeved outside the pipe body 51. A plurality of annular grooves 53 are formed in the cylindrical fixing seat 52 from top to bottom, and sealing rings 54 are clamped in each annular groove 53. When dispensing powdery pharmaceutical powder, the vacuum pipeline is connected to a vacuum pump, and corresponding pipe bodies and valve ports are selected according to medicine bottles with different diameters. When the feeding nozzle is inserted into the medicine bottle, the sealing ring seals the bottle mouth of the medicine bottle. By controlling the three-way solenoid valve, the air in the medicine bottle is first emptied, and then the motor is started, and the powdery pharmaceutical powder in the material box is sent into the medicine bottle through the dispensing hopper. Due to the negative pressure in the bottle, the fluid is more convenient to flow during the flowing process, the mass of the fluid in the unit space is increased, that is, the fluid density is increased, so that the fluid with poor fluidity can ensure sufficient dispensing fluency and improve the dispensing accuracy.

[0031] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Those skilled in the art, under the inspiration of the present invention and without violating the purpose and claims of the present invention, can make various similar representations. Such transformations all fall within the protection scope of the present invention.

Claims

1. A medicine dispensing device, comprising a silo (1) and a plurality of dispensing hoppers (2) arranged at the bottom of the silo (1), characterized in that: A pushing device (3) is vertically arranged in the sub-filling hopper (2); the lower hopper opening of the sub-filling hopper (2) is connected to a three-way solenoid valve (4); and two valve openings of the three-way solenoid valve (4) are respectively connected to a sealed feeding nozzle (5) and a vacuum pipeline (6).

2. A medicine dispensing device according to claim 1, characterized in that: A protrusion is formed upwards in the middle of the bottom of the silo (1), and a plurality of the sub-packaging hoppers (2) are evenly arranged around the protrusion.

3. A medicine dispensing device according to claim 1, characterized in that: The pushing device (3) comprises a pushing screw (31) vertically arranged in the charging hopper (2), the lower end of the pushing screw (31) being arranged close to the lower hopper opening of the charging hopper (2), the upper end of the pushing screw (31) being connected to a transmission rod (32), and the upper ends of a plurality of the transmission rods (32) passing through the silo (1) and connected to the same driving device (7).

4. A medicine dispensing device according to claim 3, characterized in that: The driving device (7) comprises a plurality of pinion gears (71), each of which is fixedly sleeved on the upper part of the transmission rod (32), each of which is meshed with the same central gear (72), the central gear (72) and the pinion gears (71) are fixedly connected to the silo (1) via a mounting frame (73), and the central axis of the central gear (72) is driven by a motor (74).

5. A medicine dispensing device according to claim 4, characterized in that: A stirring shaft (8) is also vertically arranged in the silo (1), the upper end of the stirring shaft (8) is fixedly connected to the axis of the central gear (72), and a stirring blade (81) is arranged on the stirring shaft (8).

6. A medicine dispensing device according to claim 3, characterized in that: The thread outer diameters of the push screws (31) are unequal and gradually decrease.

7. A medicine dispensing device according to claim 1, characterized in that: The sealed feeding nozzle (5) comprises a tube body (51), the tube body (51) is fixedly sleeved with a columnar fixing seat (52), a plurality of annular grooves (53) are formed on the columnar fixing seat (52) from top to bottom, and a sealing ring (54) is clamped in each annular groove (53).

8. A medicine dispensing device according to claim 7, characterized in that: The outer diameter of the sealing ring (54) decreases from top to bottom.

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