A medicinal powder mixing device

Abstract

This utility model discloses a medicinal powder mixing device, relating to the field of pharmaceutical processing technology. It includes a support frame and a material container. First rotating shafts are fixed to both ends of the material container. Two mounting blocks are fixed to the top of the support frame. One of the first rotating shafts is rotatably connected to one mounting block via a bearing. The other first rotating shaft is fixedly connected to one side of an internal gear ring via a transition plate. The other side of the internal gear ring is fixedly connected to a second rotating shaft via a transition plate. The second rotating shaft is rotatably connected to the other mounting block via a bearing. The inner ring of the internal gear ring is connected to a stirring mechanism via a transmission assembly. This utility model features a pulverizing structure with an eccentrically rotating pressure roller and an arc-shaped baffle. As the material container rotates, the eccentric pressure roller rotates and, in conjunction with the arc-shaped baffle, pulverizes any clumps in the medicinal powder to facilitate further processing. A stirring mechanism is also included. The eccentric pressure roller, stirring mechanism, and material container rotation structure share a single drive system, resulting in a compact structure and low cost.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical processing technology, specifically to a medicinal powder mixing device. Background Technology

[0002] In medicinal herb processing plants, it is often necessary to mix different types of medicinal herb powders for further processing. Traditional medicinal herb mixers typically have only one stirring mechanism, resulting in long processing times and uneven mixing. While drum-type mixers can achieve material tumbling through a rotating drum structure, and can further incorporate stirring paddles within the drum, existing mixing devices generally lack the ability to break up materials. Some medicinal herb powders may contain clumps, which can affect subsequent processing. Therefore, there is an urgent need for a medicinal herb powder mixing device capable of breaking up clumps. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a medicinal powder mixing device.

[0004] Technical solution:

[0005] A medicinal powder mixing device includes a support and a material hopper. First rotating shafts are fixed to both ends of the material hopper. Two mounting blocks are fixed to the top of the support. One of the first rotating shafts is rotatably connected to one mounting block via a bearing. The other first rotating shaft is fixedly connected to one side of an internal gear ring via a transition plate. The other side of the internal gear ring is fixedly connected to a second rotating shaft via a transition plate. The second shaft is rotatably connected to another mounting block via a bearing. The inner ring of the internal gear ring is connected to a stirring mechanism via a transmission assembly. An outer gear ring is also fixed to the support. The outer gear ring cannot rotate, and its outer ring meshes with a first... A gear is provided, with the first gear meshing with the second gear. Both the first and second gears are rotatably connected to the material barrel. The central shaft of the second gear extends into the material barrel and is fixed with a pressure roller. The pressure roller is eccentrically fixed on the central shaft. Two arc-shaped baffles are symmetrically provided on both sides of the pressure roller and are fixed to the inner wall of the material barrel. The center points of the central shaft, the pressure roller, and the baffles are all located on the symmetry line of the two arc-shaped baffles. The center point of the central shaft is located between the center points of the pressure roller and the baffles. The center point of the baffles is closer to the outer gear ring than the center point of the pressure roller. One of the first or second rotating shafts is connected to the drive mechanism.

[0006] Furthermore, the transmission assembly includes a third gear meshing with the inner ring of the inner gear ring, the third gear meshing with a fourth gear, the fourth gear being fixedly connected to the stirring shaft, the part of the stirring shaft extending into the material barrel being fixed with a stirring paddle, the stirring shaft being concentric with the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft being hollow shafts, the two ends of the stirring shaft passing through the first rotating shaft and the second rotating shaft and being rotatably connected by bearings and two mounting blocks.

[0007] Furthermore, the drive mechanism includes a first sprocket fixed on a first rotating shaft or a second rotating shaft, the first sprocket being connected to a second sprocket via a chain, and the second sprocket being connected to a motor.

[0008] Furthermore, protective covers are provided on the motor, the first sprocket, and the second sprocket.

[0009] Furthermore, the agitator has a single helix or a reverse double helix structure.

[0010] Furthermore, the middle of the material bucket is cylindrical, and the two ends are conical, with a discharge port at the end of the conical part and a cover plate on the discharge port.

[0011] Beneficial effects:

[0012] This utility model provides a medicinal powder mixing device, which is equipped with a crushing structure consisting of an eccentrically rotating pressure roller and an arc-shaped baffle. As the material barrel rotates, the eccentric pressure roller can rotate and work with the arc-shaped baffle to crush the lumps in the medicinal powder, so as to facilitate the next step of processing. A stirring mechanism is also provided. The eccentric pressure roller, stirring mechanism and material barrel rotation structure share a common drive system, which is compact and low in cost. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the medicinal powder mixing device of this utility model; Figure 2 This is a schematic diagram of the installation structure of the stirring shaft of this utility model; Figure 3 This is a schematic diagram of the relevant drive components for the stirring shaft and pressure roller of this utility model; Figure 4 This is a schematic diagram showing the positional relationship between the stirring shaft and the first rotating shaft of this utility model.

[0014] In the diagram, 1. Support; 2. Material bucket; 3. First rotating shaft; 4. Mounting block; 5. Adapter plate; 6. Inner gear ring; 7. Second rotating shaft; 8. First gear; 9. Second gear; 10. Pressure roller; 11. Baffle; 12. Third gear; 13. Fourth gear; 14. Stirring shaft; 15. Stirring paddle; 16. First sprocket; 17. Chain; 18. Second sprocket; 19. Motor; 20. Protective cover; 21. Outer gear ring. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings.

[0016] As attached Figure 1 To be continued Figure 4 . Specific implementation examples:

[0018] A medicinal powder mixing device includes a support 1 and a material bucket 2. First rotating shafts 3 are fixed to both ends of the material bucket 2. Two mounting blocks 4 are fixed to the top of the support 1. One of the first rotating shafts 3 is rotatably connected to one mounting block 4 via a bearing. The other first rotating shaft 3 is fixedly connected to one side of an internal gear ring 6 via a transition plate 5. The other side of the internal gear ring 6 is fixedly connected to a second rotating shaft 7 via the transition plate 5. The second rotating shaft 7 is rotatably connected to the other mounting block 4 via a bearing. The inner ring of the internal gear ring 6 is connected to a stirring mechanism via a transmission assembly. An external gear ring 21 is also fixed to the support 1. The external gear ring 21 cannot rotate. The outer ring of the external gear ring 21 meshes with a first gear 8. Gear 8 meshes with second gear 9. Both first gear 8 and second gear 9 are rotatably connected to the material barrel 2. The central shaft of the second gear 9 extends into the material barrel 2 and is fixed with a pressure roller 10. The pressure roller 10 is eccentrically fixed on the central shaft. Two arc-shaped baffles 11 are symmetrically provided on both sides of the pressure roller 10. The baffles 11 are fixed on the inner wall of the material barrel 2. The center points of the central shaft, pressure roller 10, and baffles 11 are all located on the symmetry line of the two arc-shaped baffles 11. The center point of the central shaft is located between the center points of the pressure roller 10 and the baffles 11. The center point of the baffles 11 is closer to the outer gear ring 21 than the center point of the pressure roller 10. One of the first rotating shafts 3 or the second rotating shaft 7 is connected to the drive mechanism.

[0019] As the drive mechanism rotates the material drum 2, the first gear 8 rotates with it. Simultaneously, due to its engagement with the stationary outer gear ring 21, the first gear 8 rotates on its own axis. The second gear 9 rotates along with the first gear 8, thereby driving the pressure roller 10 to rotate eccentrically. The distance between the outer edge of the pressure roller 10 and the inner wall of the arc-shaped baffle 11 changes periodically with the rotation of the pressure roller 10. The material inside the material drum 2 tumbles and mixes. After the material drum 2 reaches a certain height, the material tumbles and falls into the area between the pressure roller 10 and the arc-shaped baffle 11. With the rotation of the eccentric pressure roller 10, the clumps in the material are squeezed into finer powder, thus completing the pulverization of clumps in the material powder, facilitating the next step. Since the pressure roller 10 drives the second gear 9 to rotate via the small first gear 8 rolling and rotating on the large outer gear ring 21, the rotation speed of the pressure roller 10 can be controlled by setting the gear ratio. The rotation speed of the pressure roller 10 can be faster than that of the material drum 2, which is beneficial for the rapid pulverization of clumps in the material.

[0020] In one embodiment of this utility model, the transmission assembly includes a third gear 12 meshing with the inner ring of the inner gear ring 6, the third gear 12 meshing with a fourth gear 13, the fourth gear 13 being fixedly connected to a stirring shaft 14, and a stirring paddle 15 fixed to the portion of the stirring shaft 14 extending into the material tank 2. The stirring shaft 14 is concentric with the first rotating shaft 3 and the second rotating shaft 7, both of which are hollow shafts. The two ends of the stirring shaft 14 pass through the first rotating shaft 3 and the second rotating shaft 7 and are rotatably connected by bearings and two mounting blocks 4. In this embodiment, a stirring shaft 14 and a stirring paddle 15 are added inside the material tank 2. As the material rotates with the material tank 2, the stirring paddle 15 can further stir the material, facilitating the rapid mixing of various components in the material. Similarly, the stirring shaft 14 drives the smaller third gear 12 and fourth gear 13 to rotate through the large internal gear ring 6. The rotation speed of the stirring shaft 14 can be controlled by setting the gear ratio. The stirring shaft 14 can have a faster rotation speed relative to the material bucket 2. Moreover, the stirring shaft 14 rotates in the opposite direction to the material bucket 2, and therefore the material inside the material bucket 2 flips in the opposite direction, which can fully disperse the material and facilitate uniform mixing.

[0021] Preferably, the drive mechanism includes a first sprocket 16 fixed on a first rotating shaft 3 or a second rotating shaft 7, the first sprocket 16 being connected to a second sprocket 18 via a chain 17, and the second sprocket 18 being connected to a motor 19. In this embodiment, the rotation of the pressure roller 10, the stirring shaft 14, and the material bucket 2 shares a single drive mechanism, resulting in a simpler design and lower cost.

[0022] The motor 19, the first sprocket 16, and the second sprocket 18 are all equipped with protective covers 20, which can prevent accidental contact and improve safety performance.

[0023] The mixing paddle 15 has a single spiral or reverse double spiral structure, with a large mixing area, which can lift the material and facilitate uniform mixing.

[0024] The material bucket 2 is cylindrical in the middle and conical at both ends, with a discharge port at the conical end and a cover plate 21 on the discharge port. The conical structure facilitates material discharge, and after rotation, the material is concentrated in the middle area. As the material bucket 2 flips, the material is further dispersed, which is more conducive to uniform mixing.

[0025] Although the present invention has been disclosed above with reference to preferred embodiments, these are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of protection of the claims of this application.

Claims

1. A medicinal powder mixing device, characterized in that, The system includes a support frame and a material hopper. Both ends of the material hopper are fixed with a first rotating shaft. The top of the support frame has two mounting blocks. One first rotating shaft is rotatably connected to a mounting block via a bearing. The other first rotating shaft is fixedly connected to one side of an internal gear ring via an adapter plate. The other side of the internal gear ring is fixedly connected to a second rotating shaft via an adapter plate. The second shaft is rotatably connected to another mounting block via a bearing. The inner ring of the internal gear ring is connected to a stirring mechanism via a transmission assembly. An external gear ring is also fixed to the support frame. The external gear ring cannot rotate, and its outer ring meshes with a first gear. The first gear meshes with the second gear, and both the first and second gears are rotatably connected to the material barrel. The central shaft of the second gear extends into the inside of the material barrel and is fixed with a pressure roller. The pressure roller is eccentrically fixed on the central shaft. Two arc-shaped baffles are symmetrically arranged on both sides of the pressure roller and are fixed on the inner wall of the material barrel. The center points of the central shaft, the pressure roller, and the baffles are all located on the symmetry line of the two arc-shaped baffles. The center point of the central shaft is located between the center points of the pressure roller and the baffles. The center point of the baffles is closer to the outer gear ring than the center point of the pressure roller. One of the first or second rotating shafts is connected to the drive mechanism.

2. The medicinal powder mixing device according to claim 1, characterized in that, The transmission assembly includes a third gear that meshes with the inner ring of the internal gear ring, the third gear meshes with a fourth gear, the fourth gear is fixedly connected to the stirring shaft, the part of the stirring shaft that extends into the material barrel is fixed with a stirring paddle, the stirring shaft is concentric with the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft are both hollow shafts, the two ends of the stirring shaft pass through the first rotating shaft and the second rotating shaft and are rotatably connected by bearings and two mounting blocks.

3. The medicinal powder mixing device according to claim 1, characterized in that, The drive mechanism includes a first sprocket fixed on a first shaft or a second shaft, the first sprocket being connected to a second sprocket via a chain, and the second sprocket being connected to a motor.

4. The medicinal powder mixing device according to claim 3, characterized in that, Protective covers are provided on the motor, the first sprocket, and the second sprocket.

5. A medicinal powder mixing device according to claim 2, characterized in that, The agitator has a single helix or a reverse double helix structure.

6. A medicinal powder mixing device according to any one of claims 1-5, characterized in that, The middle of the material bucket is cylindrical, and the two ends are conical. The conical ends are equipped with discharge ports, and the discharge ports are covered with covers.

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