Mixing device for preparing mixed decoction particles
By introducing a liftable inlet pipe and atomizing nozzle into the mixing device, combined with a conical section and a guide slope structure, the problem of uneven contact between powdered materials and binders in the mixing device is solved, achieving efficient particle preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TIANLING CHINESE TRADITIONAL MEDICINE SLICE
- Filing Date
- 2025-02-21
- Publication Date
- 2026-05-12
AI Technical Summary
In existing mixing devices, the height of the atomizing nozzle is fixed, which means that the powdered main and auxiliary materials can only come into contact with the binder at the very top during the tumbling process, resulting in low mixing efficiency.
A mixing device for preparing granules is designed, which adopts a liftable liquid inlet pipe and atomizing nozzle, combined with a conical part and a guide slope structure to ensure that the binder is sprayed evenly and combined with the tumbling motion of the stirring blade to form dynamic mixing.
It improves the mixing and adhesion efficiency, ensuring uniform contact between the powdered main and auxiliary materials and the adhesive, forming efficient granular materials.
Smart Images
Figure CN224221213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical equipment, and in particular to a mixing device for preparing granules. Background Technology
[0002] In the preparation of traditional Chinese medicine granules, powdered main and auxiliary materials are typically added to a mixing chamber and stirred to achieve uniform mixing. Then, a binder is sprayed onto the powdered materials using a nozzle, and the mixture is continuously agitated and stirred to form a soft material. Finally, a cutter is used to granulate the mixture. Currently, the atomizing nozzle has a fixed height. While the powdered materials are constantly tumbling, the nozzle can only spray the topmost powdered materials, while the lower parts need to be agitated before they can be sprayed. This results in low overall adhesion efficiency. Therefore, we have designed a mixing device for preparing decoction granules. 。 Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a mixing device for preparing granules.
[0004] This utility model is achieved using the following technical solution: a mixing device for preparing mixed granules, comprising a frame, an outer shell fixed above the frame, a placement seat at the lower end of the inner side of the outer shell, a stirring and mixing structure rotatably mounted above the placement seat, a cutting blade rotatably mounted on the inner side of the outer shell via a bearing seat, the cutting blade being positioned above the stirring and mixing structure, a top cover rotatably mounted on the top of the outer shell via a pivot pin, the top cover having a through-hole forming a circular hole, an inlet pipe sliding vertically and sealingly disposed within the circular hole, an atomizing nozzle mounted at the bottom end of the inlet pipe, the inlet pipe being connected to an external peristaltic pump and a press via a flexible hose, thereby allowing the adhesive to be evenly sprayed onto the internal powdered main and auxiliary materials through the inlet pipe and the atomizing nozzle, a lifting cylinder being mounted above the top cover via a bracket, and the top of the inlet pipe being connected to the push rod of the lifting cylinder via a support plate.
[0005] As a further improvement to the above solution, a conical part is provided inside the upper part of the outer shell. Both the upper and lower sides of the conical part are designed with slopes. When the powdered main and auxiliary materials move upward, they roll along the surface of the conical part towards the middle of the inner part of the outer shell and fall down after hitting the conical part.
[0006] As a further improvement to the above solution, the mixing structure includes a drive shaft rotatably mounted inside the outer shell via a bearing seat. An mounting head is mounted above the drive shaft, passing through a placement seat and positioned above it. The mounting head and placement seat are designed to rotate and be sealed. The outer surface of the mounting head is provided with multiple sets of stirring blades arranged in a circumferential array. The mixing structure initially rotates at a low speed, and then rotates at a high speed to ensure thorough mixing of the materials. Under the action of the stirring blades, the materials tumble along the surface of the stirring blades to the inner wall of the outer shell. After hitting the wall, under the action of thrust and extrusion, the motion changes to upward movement. After hitting the conical part, it tumbles along the surface of the conical part towards the center of the inner shell and falls down, and then tumbles again along the surface of the stirring blades to the inner wall of the outer shell, thus repeating the cycle.
[0007] As a further improvement to the above solution, the stirring blade includes a horizontal part connected to the mounting head. The horizontal part is bent at one end away from the mounting head to form a curved section. One side of the upper surface of the curved section is chamfered to form a guide slope. The curved section allows the powdered main and auxiliary materials to roll along their surface toward the inner wall of the outer shell, and the guide slope gives them an upward tendency, making it easier for them to move upward along the inner wall.
[0008] As a further improvement to the above solution, the bottom end of the drive shaft is connected to the output shaft of the drive device via a belt, and the end of the cutting blade away from the mounting head passes through the outer casing and is placed outside it and connected to the power device. Both the drive device and the power device are drive motors, which facilitates the rotation of the stirring blade and the cutting blade.
[0009] As a further improvement to the above solution, the thickness of the upper surface of the placement seat gradually increases from the outer ring to the inner ring, and the lower surface of the stirring blade slides in contact with the upper surface of the placement seat, which facilitates the powdery main and auxiliary materials above to tumble along the placement seat towards the inner wall of the outer shell.
[0010] A discharge valve is installed on the front side of the outer shell. The discharge valve is connected to the inside of the outer shell, and the bottom end of the inner wall of the discharge valve is flush with the upper surface of the outermost ring of the placement seat. Particles can be discharged through the discharge valve, which facilitates their collection.
[0011] As a further improvement to the above solution, a cleaning plate is provided under the upper cover via a bracket. The upper and lower sides of the cleaning plate are both conical in shape. The cleaning plate can scrape and clean the adhering substances on the surface of the liquid inlet pipe. The upper and lower sides of the conical structure also allow these powdery main and auxiliary materials to fall down along the slope and not easily adhere to its surface.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model provides a liftable liquid inlet pipe on the upper cover of the device, with an atomizing nozzle installed below the liquid inlet pipe. The liquid inlet pipe and the atomizing nozzle move up and down under the action of the lifting cylinder, allowing the atomizing nozzle to move upward to a certain position. This enables the atomizing nozzle to spray the powdered main and auxiliary materials, improving the mixing and adhesion efficiency. In conjunction with the cleaning plate, the adhering substances on the surface of the liquid inlet pipe can be scraped and cleaned.
[0014] 2. By setting the placement seat into a frustum-shaped structure, and dividing the stirring blade into a horizontal part and a curved part, the upper surface of the curved part is chamfered to form a guide slope. The curved part allows the powdered main and auxiliary materials to roll along its surface toward the inner wall of the outer shell, and the guide slope gives it an upward tendency, making it easy for it to move upward along the inner wall. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a mixing device for preparing granules according to the present invention;
[0016] Figure 2 for Figure 1 A cross-sectional schematic diagram;
[0017] Figure 3 for Figure 1 A top-view structural diagram;
[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the upper cover and the liquid inlet pipe.
[0019] Explanation of key symbols:
[0020] 1. Outer shell; 11. Placement seat; 12. Conical part; 2. Top cover; 3. Liquid inlet pipe; 31. Atomizing nozzle; 4. Lifting cylinder; 5. Stirring and mixing structure; 51. Drive shaft; 52. Mounting head; 53. Stirring blade; 531. Horizontal part; 532. Inclined part; 533. Guide slope; 6. Cutting blade; 7. Cleaning plate; 71. Discharge slope; 8. Frame; 9. Discharge valve. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0022] Example:
[0023] Please combine Figures 1-4This embodiment of a mixing device for preparing granules includes a frame 8, an outer shell 1 fixed on top of the frame 8, a placement seat 11 at the lower end of the inner shell 1, a stirring and mixing structure 5 rotatably mounted on top of the placement seat 11, a cutting blade 6 rotatably mounted on the inner side of the outer shell 1 via a bearing seat, the cutting blade 6 being above the stirring and mixing structure 5, an upper cover 2 rotatably mounted on top of the outer shell 1 via a pivot pin, the upper cover 2 forming a circular hole extending vertically, an inlet pipe 3 sliding vertically and sealingly disposed within the circular hole, an atomizing nozzle 31 mounted at the bottom end of the inlet pipe 3, the inlet pipe 3 being connected to an external peristaltic pump and a press via a hose, thereby allowing the adhesive to be evenly sprayed onto the powdered main and auxiliary materials inside through the inlet pipe and the atomizing nozzle 31, a lifting cylinder 4 mounted on top of the upper cover 2 via a bracket, and the upper part of the inlet pipe 3 being connected to the push rod of the lifting cylinder 4 via a support plate.
[0024] A conical part 12 is provided inside the upper part of the outer shell 1. Both the upper and lower sides of the conical part 12 are designed with slopes. When the powdered main and auxiliary materials move upward, they roll along the surface of the conical part 12 towards the middle of the inner part of the outer shell 1 and fall down.
[0025] The mixing structure 5 includes a drive shaft 51 rotatably mounted inside the outer casing 1 via a bearing seat. An mounting head 52 is mounted above the drive shaft 51, passing through the placement seat 11 and positioned above it. The mounting head 52 and the placement seat 11 are designed to rotate and be sealed. Multiple sets of stirring blades 53 arranged in a circumferential array are provided on the outer surface of the mounting head 52. The mixing structure 5 initially rotates at a low speed, and then rotates at a high speed to ensure thorough mixing of the materials. Under the action of the stirring blades 53, the materials tumble along the surface of the stirring blades 53 to the inner wall of the outer casing 1. After hitting the wall, under the action of thrust and extrusion, the motion changes to upward motion. After hitting the conical part 12, it tumbles along the surface of the conical part 12 toward the center of the inner casing 1 and falls down. Then it tumbles again along the surface of the stirring blades 53 to the inner wall of the outer casing 1, and so on.
[0026] The stirring blade 53 includes a horizontal part 531 connected to the mounting head 52. The end of the horizontal part 531 away from the mounting head 52 is bent to form a curved part 532. One side of the upper surface of the curved part 532 is chamfered to form a guide slope 533. The curved part 532 allows the powdered main and auxiliary materials to roll along its surface toward the inner wall of the outer shell 1, and the guide slope 533 gives it an upward tendency, making it easy for it to move upward along the inner wall.
[0027] The bottom end of the drive shaft 51 is connected to the output shaft of the drive device via a belt. The end of the cutting blade 6 away from the mounting head 52 passes through the outer casing 1 and is placed outside it and connected to the power device. Both the drive device and the power device are drive motors, which facilitates the rotation of the stirring blade 53 and the cutting blade 6.
[0028] The thickness of the upper surface of the placement seat 11 gradually increases from the outer ring to the inner ring, and the lower surface of the stirring blade 53 slides in contact with the upper surface of the placement seat 11, which facilitates the powdery main and auxiliary materials above to tumble along the placement seat 11 toward the inner wall of the outer shell 1.
[0029] A discharge valve 9 is installed on the front side of the outer casing 1. The discharge valve 9 is connected to the inside of the outer casing 1, and the bottom end of the inner wall of the discharge valve 9 is flush with the upper surface of the outermost ring of the placement seat 11. Particles can be discharged through the discharge valve 9, which facilitates their collection.
[0030] A cleaning plate 7 is installed below the top cover 2 via a bracket. The upper and lower sides of the cleaning plate 7 are both conical in shape. The cleaning plate 7 can scrape and clean the adhering substances on the surface of the liquid inlet pipe 3. The upper and lower sides of the conical structure also allow these powdery main and auxiliary materials to fall down along the slope and not easily adhere to its surface.
[0031] The implementation principle of a mixing device for preparing granules in this application embodiment is as follows: In actual use, powdered main and auxiliary materials are added to the inside of the outer shell 1 and the upper cover 2 is closed. Then, the stirring and mixing structure 5 is rotated by the driving device. The stirring and mixing structure 5 rotates at a low speed at the beginning and then rotates at a high speed to make the materials fully mixed. Under the action of the stirring blade 53, the material tumbles along the surface of the stirring blade 53 to the inner wall of the outer shell 1. After hitting the wall, under the action of the pushing force and the squeezing force, the motion changes to upward. After hitting the conical part 12, it tumbles along the surface of the conical part 12 toward the middle of the inside of the outer shell 1 and falls down. Then it tumbles along the surface of the stirring blade 53 to the inner wall of the outer shell 1 again, and so on.
[0032] After a period of high-speed mixing, the power supply of the peristaltic pump and the press is turned on, so that the adhesive is sprayed through the liquid inlet pipe 3 and the atomizing nozzle 31 onto the powdery main and auxiliary materials that are churning inside. During the spraying process, the power supply of the lifting cylinder 4 is turned on, so that the liquid inlet pipe 3 and the atomizing nozzle 31 move up and down under the action of the lifting cylinder 4, so that the atomizing nozzle 31 can move upward to a certain position, and can spray the powdery main and auxiliary materials inside, thereby improving the mixing and adhesion efficiency.
[0033] As the binder is continuously added, the fluidized material gradually becomes moist and turns into a soft material. At this time, the cutting blade 6 rotates at high speed under the action of the power device, and generates vortices with the rotation of the stirring blade 53. The soft material is further tumbled, collided and sheared in three-dimensional dynamics, making the particles more fine and uniform, and finally forming stable spherical particles.
[0034] By setting a liftable liquid inlet pipe 3 on the upper cover 2 of the device, and installing the atomizing nozzle 31 below the liquid inlet pipe 3, the liquid inlet pipe 3 and the atomizing nozzle 31 can move up and down under the action of the lifting cylinder 4, so that the atomizing nozzle 31 can move upward to a certain position, and spray the powdery main and auxiliary materials inside, improving the mixing and adhesion efficiency. With the cleaning plate 7, the adhering substances on the surface of the liquid inlet pipe 3 can be scraped and cleaned.
[0035] By setting the placement seat 11 into a frustum-shaped structure, and dividing the stirring blade 53 into two parts, a horizontal part 531 and a curved part 532, the upper surface of the curved part 532 is chamfered to form a guide slope 533. The setting of the curved part 532 allows the powdered main and auxiliary materials to roll along its surface toward the inner wall of the outer shell 1, and the setting of the guide slope 533 gives it an upward tendency, making it easy for it to move upward along the inner wall.
[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A mixing device for preparing granulated powder, characterized in that, The device includes a frame (8), an outer shell (1) fixed on top of the frame (8), a placement seat (11) provided at the lower end of the inner side of the outer shell (1), a stirring and mixing structure (5) rotatably provided on top of the placement seat (11), a cutting blade (6) rotatably installed on the inner side of the outer shell (1) through a bearing seat, the cutting blade (6) being above the stirring and mixing structure (5), an upper cover (2) rotatably installed on top of the outer shell (1) through a shaft pin, the upper cover (2) forming a circular hole through the top and bottom, an inlet pipe (3) sliding up and down and sealed inside the circular hole, an atomizing nozzle (31) installed at the bottom end of the inlet pipe (3), a lifting cylinder (4) installed on top of the upper cover (2) through a bracket, and the upper part of the inlet pipe (3) being connected to the push rod of the lifting cylinder (4) through a support plate.
2. The mixing device for preparing granules as described in claim 1, characterized in that, The outer shell (1) has a tapered part (12) located on the upper part inside, and both the upper and lower sides of the tapered part (12) are designed with slopes.
3. The mixing device for preparing granules as described in claim 1, characterized in that, The mixing structure (5) includes a drive shaft (51) rotatably mounted inside the outer casing (1) via a bearing seat. An mounting head (52) is mounted above the drive shaft (51). The mounting head (52) passes through the placement seat (11) and is positioned above it. The mounting head (52) and the placement seat (11) are designed to rotate and be sealed. The outer surface of the mounting head (52) is provided with multiple sets of stirring blades (53) arranged in a circumferential array.
4. The mixing device for preparing granules as described in claim 3, characterized in that, The stirring blade (53) includes a horizontal part (531) connected to the mounting head (52). The horizontal part (531) is bent at one end away from the mounting head (52) to form a curved part (532). The upper surface of the curved part (532) is chamfered on one side to form a guide slope (533).
5. The mixing device for preparing granules as described in claim 4, characterized in that, The bottom end of the drive shaft (51) is connected to the output shaft of the drive device via a belt, and the end of the cutter (6) away from the mounting head (52) passes through the outer casing (1) and is placed outside it and connected to the power device.
6. The mixing device for preparing granules as described in claim 1, characterized in that, The thickness of the upper surface of the placement seat (11) gradually increases from the outer ring to the inner ring, and the lower surface of the stirring blade (53) slides in contact with the upper surface of the placement seat (11); A discharge valve (9) is installed on the front side of the outer shell (1). The discharge valve (9) is connected to the inside of the outer shell (1), and the bottom end of the inner wall of the discharge valve (9) is flush with the outermost upper surface of the placement seat (11).
7. The mixing device for preparing granules as described in claim 1, characterized in that, A cleaning plate (7) is provided below the top cover (2) via a bracket. Both the upper and lower sides of the cleaning plate (7) are conical in shape.