A high-level wet mixing granulator to improve granulation uniformity

Abstract

This invention discloses a high-level wet mixing granulator for improving granulation uniformity, comprising a cylinder and transmission device, a stirring paddle, a movable ring plate, and a movable disc. Multiple conical rollers are rotatably connected to the surface of the stirring paddle's central shaft. A telescopic component, fixed to the inner wall of the cylinder, presses against the top of the movable disc, driving the movable ring plate to move up and down along the outer surface of the conical rollers. Two staggered movable plates are rotatably connected to the bottom of the movable ring plate, with mating discs fixedly connected to their ends. One mating disc rolls along the other. Multiple inclined conical rollers are arranged at the central shaft of the stirring paddle, rolling in conjunction with the movable ring plate mounted on top of the stirring paddle's central shaft. When the stirring paddle rotates, the conical rollers not only perform circular motion but also rotate due to the vertical up-and-down movement of the movable ring plate. This method improves the mixing uniformity of the material within the cylinder.

Description

Technical Field

[0001] This invention relates to the field of high-position wet mixing granulation machine technology, specifically a high-position wet mixing granulation machine for improving granulation uniformity. Background Technology

[0002] In the prior art, the stirring transmission mechanism of the wet granulation machine with publication number CN220802993U drives the stirring paddle to rotate through the transmission device. Although it improves the mixing efficiency to a certain extent, it still has the following defects: the traditional stirring paddle only relies on centrifugal force to achieve radial mixing, and lacks a vertical material replacement mechanism or has insufficient axial replacement capacity, resulting in uneven mixing of materials at different heights and easily forming a "stratification effect". For example, in the process of mixing Chinese medicine extracts and excipients, density differences may cause the upper material to be too wet and the lower material to be too dry, affecting the particle size distribution.

[0003] To address this, we propose a high-position wet mixing granulator to improve granulation uniformity. Summary of the Invention

[0004] The purpose of this invention is to provide a high-level wet mixing granulator that improves granulation uniformity, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a high-level wet mixing granulator for improving granulation uniformity, comprising a cylinder and a transmission device, wherein a stirring paddle is provided in the cylinder, and the output shaft of the transmission device passes through the cylinder to drive the stirring paddle.

[0006] It also includes a movable ring plate, and multiple conical rollers are rotatably connected to the surface of the central shaft of the stirring paddle. The conical rollers are in rolling cooperation with the movable ring plate. An inclined movable disk is fixedly connected to the top of the central shaft of the stirring paddle. The top of the movable disk is pressed against a telescopic component that is connected and fixed to the inner wall of the cylinder. The telescopic component drives the movable ring plate to move up and down along the outer surface of the conical rollers.

[0007] The bottom of the movable ring plate is rotatably connected to two staggered movable plates, and the ends of the two movable plates are respectively fixedly connected to mating discs that rotate and cooperate with each other, with one mating disc rolling along the other mating disc.

[0008] Preferably, the telescopic component includes a telescopic rod with an internal elastic compression spring, the telescopic end of the telescopic rod has an inclined surface, the inclined surface cooperates with the top surface of the movable disc, the top end of the telescopic rod is connected and fixed to the cylinder body through a connecting rod, and the movable ring plate is connected and fixed to the telescopic end of the telescopic rod through an L-shaped connecting rod.

[0009] Preferably, a limiting ring is fixedly connected to the top and bottom positions of the conical roller, and the limiting rings located at the upper and lower positions are in limiting cooperation with the movable ring plate, with one of the movable plates in abutting cooperation with the limiting ring located below.

[0010] Preferably, a pressure bead that presses against the movable plate is fixedly connected to the lower limiting ring.

[0011] Preferably, a fixed plate is fixedly connected to the bottom of the movable ring plate, and the mating disc located above is rotatably connected to the fixed plate via a rotating shaft. A sliding groove is provided inside the movable ring plate, and a sliding plate is slidably fitted inside the sliding groove. A sleeve is fixedly connected to the sliding plate. An movable groove is provided outside the movable ring plate to slidably fit with the sleeve. The mating disc located above passes through the movable groove and contacts and fits with the sliding plate.

[0012] Preferably, a sleeve rod is fitted inside the sleeve, and the end of the sleeve rod is rotatably connected to the central shaft of the mating disc located below.

[0013] Preferably, the diameter of the lower mating disc is smaller than the diameter of the upper mating disc.

[0014] Preferably, a tension spring is rotatably connected inside the movable groove, and the other end of the tension spring passes through the sleeve and is connected to the sleeve rod.

[0015] Preferably, the length of the slide plate is greater than the length of the movable groove, and the length of the sliding groove is greater than the length of the slide plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Multiple inclined conical rollers are installed at the central shaft of the agitator. These conical rollers are in rolling cooperation with the movable ring plate installed at the top of the central shaft of the agitator. When the agitator rotates, the conical rollers not only make circular motion, but also rotate due to the vertical up and down movement of the movable ring plate. This method improves the mixing uniformity of the material in the cylinder.

[0018] Furthermore, the structure of the movable plate and the mixing plate further enhances the mixing effect of the materials. The interaction between the two not only allows the materials to be mixed more thoroughly, but also effectively reduces the occurrence of stratification. These improvements enable the materials at different heights to be effectively mixed during the granulation process, thereby improving the uniformity of granulation and the quality of the finished product. Attached Figure Description

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the mating structure between the cylinder body and the transmission device of the present invention;

[0021] Figure 3This is a schematic cross-sectional view of the cylinder block of the present invention;

[0022] Figure 4 This is a schematic diagram of the cooperative structure of the stirring paddle, the movable ring plate, and the telescopic component of the present invention.

[0023] Figure 5 This is a schematic cross-sectional view of the movable ring plate of the present invention;

[0024] Figure 6 This is a schematic diagram showing the disassembled structure of the stirring paddle and the conical roller of the present invention;

[0025] Figure 7 This is a schematic diagram of the cooperative structure between the conical roller and the movable plate of the present invention;

[0026] Figure 8 This is a side view schematic diagram of the cooperative structure of the conical roller and the movable plate of the present invention;

[0027] Figure 9 This is a schematic diagram of the mating structure between the movable ring plate and the movable plate of the present invention;

[0028] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the middle structure;

[0029] Figure 11 This is a schematic diagram of the mating structure of the movable ring plate and the fixed plate of the present invention;

[0030] Figure 12 This is a schematic diagram of the disassembled structure of the sliding groove and the sliding plate of the present invention;

[0031] Figure 13 This is a schematic diagram of the mating structure between the mating disc and the mating disc, and between the mating disc and the sliding plate of the present invention;

[0032] Figure 14 This is a schematic diagram of the fitting structure between the sleeve and the sliding plate of the present invention.

[0033] In the diagram: 1. Cylinder body; 2. Transmission device; 3. Agitator; 4. Movable ring plate; 5. Conical roller; 6. Movable disc; 7. Movable plate; 8. Mating disc; 9. Telescopic rod; 10. Inclined surface; 11. Connecting rod; 12. L-shaped connecting rod; 13. Limiting ring; 14. Pressing bead; 15. Fixed plate; 16. Sliding groove; 17. Slide plate; 18. Sleeve; 19. Movable groove; 20. Sleeve rod; 21. Tension spring; 22. Rotating shaft. Detailed Implementation

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0035] Please see Figures 1-14 This invention provides a high-level wet mixing granulator to improve granulation uniformity, including a cylinder 1 and a transmission device 2. The cylinder 1 is equipped with a stirring paddle 3. The output shaft of the transmission device 2 passes through the cylinder 1 to drive the stirring paddle 3. The stirring paddle 3 of this application has a general stirring speed and does not need to rotate at high speed to avoid breaking the particles.

[0036] In the prior art (a stirring transmission mechanism for a wet granulator disclosed in CN220802993U), the stirring paddle 3 is rotated inside the cylinder 1 by the transmission device 2, thereby making the granulation in the cylinder 1 uniform. This application only improves the top of the stirring paddle 3 inside the cylinder 1, and does not improve other internal and external structures of the cylinder 1 or the feeding and discharging methods, referring to this conventional technology.

[0037] The high-position wet mixing granulator also includes: a movable ring plate 4, and multiple conical rollers 5 are rotatably connected to the surface of the central shaft of the stirring paddle 3, the conical rollers 5 and the movable ring plate 4 are in rolling cooperation;

[0038] When the agitator 3 rotates, the agitator blades of the agitator 3 make circular motions, and the agitator blades have an L-shaped structure, which facilitates the upward movement of particles. The central axis of the agitator 3 rotates from its original position, and multiple conical rollers 5 are tilted and rotated at the central axis of the agitator 3. The movable ring plate 4 is always in the same horizontal position and only moves up and down in the vertical direction. The movable ring plate 4 does not rotate relative to the cylinder 1. When the multiple conical rollers 5 make circular motions with the agitator 3 to further improve the uniformity of granulation, the conical rollers 5 roll along the inner wall of the movable ring plate 4, so that the conical rollers 5 that are making circular motions rotate at the same time. The rotating conical rollers 5 further improve the uniformity of granulation.

[0039] Specifically, the movable ring plate 4 moves up and down as follows: A movable disc 6 is fixedly connected to the top of the central shaft of the stirring paddle 3. The top of the movable disc 6 is pressed against a telescopic component that is fixed to the inner wall of the cylinder 1. The telescopic component drives the movable ring plate 4 to move up and down along the outer surface of the conical roller 5. The telescopic component includes a telescopic rod 9 with an internal elastic compression spring. The telescopic end of the telescopic rod 9 has an inclined surface 10. The inclined surface 10 cooperates with the top surface of the movable disc 6. The top of the telescopic rod 9 is connected and fixed to the cylinder 1 through a connecting rod 11. The movable ring plate 4 is connected and fixed to the telescopic end of the telescopic rod 9 through an L-shaped connecting rod 12.

[0040] Please refer to Figure 1. The cylinder 1 and the transmission device 2 are both fixed on the stairs. The output shaft of the transmission device 2 passes through the cylinder 1 and drives the stirring paddle 3 to rotate. The central shaft of the stirring paddle 3 rotates in its original position, thereby driving the inclined movable disk 6 to rotate. Since the movable disk 6 is inclined, the highest point of the movable disk 6 makes a circular motion, that is, the inclination direction of the movable disk 6 changes with the rotation of the stirring paddle 3.

[0041] Simultaneously, through the fixing action of the connecting rod 11 fixed to the inner wall of the cylinder 1, the top position of the telescopic rod 9 (the rectangular sleeve of the telescopic rod 9) is fixed and will not rotate. In conjunction with the internal elastic compression spring, the bottom of the telescopic rod 9 (the telescopic end of the telescopic rod 9 is a rectangular sleeve structure) also cannot rotate. The inclined surface 10, which abuts against the top surface of the movable disc 6, also cannot rotate, but can move up and down. The movable disc 6 rotates, and the tilt direction of the top surface of the movable disc 6 changes. Initially, the tilt direction of the top surface of the movable disc 6 is consistent with the tilt direction of the inclined surface 10, and they are mutually fixed. The surfaces are tightly fitted, but as the movable disc 6 rotates, the tilt direction of the top surface of the movable disc 6 changes, while the tilt direction of the tilt surface 10 remains unchanged. The top surface of the movable disc 6 presses against the bottom of the tilt surface 10, thereby pressing against the tilt surface 10 on the telescopic end of the telescopic rod 9 (the telescopic end does not rotate). In conjunction with the internal elastic compression spring, the telescopic end of the telescopic rod 9 moves up and down reciprocally. The telescopic end of the telescopic rod 9 that moves up and down drives the L-shaped connecting rod 12 and the movable ring plate 4 to move up and down. Since the telescopic end of the telescopic rod 9 does not rotate, the movable ring plate 4 also does not rotate.

[0042] The top surface of the movable plate 6 is inclined, and a structure with a circumferential wave shape can be installed on the basis of the inclined top surface. When the movable plate 6 rotates, the inclined surface 10 contacts the structure with the circumferential wave shape, thereby increasing the range of vertical movement of the movable ring plate 4.

[0043] Although the up-and-down moving ring plate 4 moves relatively slowly, it helps to improve the uniformity of granulation. Furthermore, the outer ring of the moving ring plate 4 can be equipped with an inclined auxiliary plate (the moving plate 7 moves up and down, driving the auxiliary plate to move up and down synchronously, which is not shown in the diagram), which further helps to improve the uniformity of granulation.

[0044] The bottom of the movable ring plate 4 is rotatably connected to two movable plates 7 that are staggered. The ends of the two movable plates 7 are respectively fixedly connected to mating discs 8 that rotate and cooperate with each other, and one of the mating discs 8 rolls along the other mating disc 8.

[0045] The conical roller 5 is fixedly connected to the top and bottom positions of the limiting rings 13. The limiting rings 13 located at the top and bottom positions are in limiting cooperation with the movable ring plates 4. One of the movable plates 7 is in abutting cooperation with the limiting ring 13 located below. On the one hand, the limiting rings 13 prevent the movable ring plates 4 from disengaging from the conical roller 5. On the other hand, when the movable ring plates 4 move up and down, the limiting ring 13 located at the bottom is always in abutting contact with one of the movable plates 7, thereby causing the other movable plate 7 to rotate. This helps the particles in the cylinder 1 to move up and down, improving the uniformity of granulation.

[0046] Among them, the lower limiting ring 13 is fixedly connected with a pressing bead 14 that presses against the movable plate 7. The bottom limiting ring 13 is always in contact with a movable plate 7 while rotating. When the pressing bead 14 contacts the movable plate 7, the movable plate 7 shakes rapidly, which facilitates the vertical replacement of particles in the cylinder 1.

[0047] Furthermore, a fixed plate 15 is fixedly connected to the bottom of the movable ring plate 4, and the mating plate 8 located above is rotatably connected to the fixed plate 15 via a rotating shaft 22 (the movable plate 7 is fixedly connected to the rotating shaft 22, thereby avoiding interference with the position of another movable plate 7). A sliding groove 16 is provided inside the movable ring plate 4, and a sliding plate 17 is slidably fitted inside the sliding groove 16. A sleeve 18 is fixedly connected to the sliding plate 17. An movable groove 19 is provided outside the movable ring plate 4 to slidably fit with the sleeve 18. The mating plate 8 located above passes through the movable groove 19 and contacts and fits with the sliding plate 17.

[0048] Furthermore, to ensure the stability of the operation of the slide plate 17 and the mating plate 8, a recessed groove can be provided in the middle of the bottom surface of the slide plate 17, and a toothed plate is provided in the recessed groove (to ensure that the bottom surface of the toothed plate is at the same height as the bottom surface of the slide plate 17). The mating plate 8 is preferably a gear structure. The slide plate 17 moves smoothly through the meshing relationship between the gear located at the top and the toothed plate. The movable areas at both ends of the toothed plate in the middle of the slide plate 17 are always located in the movable groove 19 to prevent materials from entering above the movable groove 19 and affecting the tension spring 21.

[0049] The movable plate 7, which is close to the central axis of the stirring paddle 3, rotates under the action of the limiting ring 13 (cooperating with the up and down movement of the movable ring plate 4, so that the rotation angle of the movable plate 7 changes), thereby driving the mating disc 8 located above to rotate in its original position. The mating disc 8, which rotates in its original position, causes the sliding plate 17 to slide horizontally along the sliding groove 16 through the rolling action. The horizontal movement of the sliding plate 17 causes the sleeve 18 to slide horizontally in sync. Correspondingly, a sleeve rod 20 is sleeved inside the sleeve 18. The end of the sleeve rod 20 is rotatably connected to the central axis of the mating disc 8 located below, so that the sleeve rod 20 moves in the horizontal direction. Under the action of the tension spring 21, the sleeve rod 20 moves along the sleeve 18, so that the edge of the mating disc 8 located below is tightly fitted with the mating disc 8 located above. At the same time, the mating disc 8 located below moves closer to or away from the central axis of the stirring paddle 3 along with the sleeve 18 and the sleeve rod 20.

[0050] On the other hand, the two mating discs 8 always roll and cooperate. The rotation of the upper mating disc 8 drives the rotation of the lower mating disc 8. The diameter of the lower mating disc 8 is smaller than that of the upper mating disc 8, thus ensuring that the lower mating disc 8 rotates at a large angle. This facilitates the rotation of the movable plate 7, which is far away from the central axis of the stirring paddle 3, at a large angle, which facilitates the replacement of particles in the cylinder 1.

[0051] That is, the upper mating plate 8 rotates slightly from its original position, while the lower mating plate 8 moves in a circle along the upper mating plate 8 under the action of the slide plate 17, and at the same time the lower mating plate 8 rotates (the two mating plates 8 are always rolling and mating), so that the movable plate 7 near the central axis of the stirring paddle 3 moves at a small angle, while driving the other movable plate 7 (the movable plate 7 away from the central axis of the stirring paddle 3) to move at a large angle.

[0052] It is worth noting that the bottom of the movable plate 7 will not come into contact with the stirring blade of the stirring paddle 3, thus avoiding any movement conflict between the stirring blade and the movable plate 7.

[0053] A tension spring 21 is rotatably connected inside the movable groove 19. The other end of the tension spring 21 passes through the sleeve 18 and is connected to the sleeve rod 20. The top of the tension spring 21 is in an inclined state. On the one hand, it ensures that the slide plate 17 returns to its original position along the sliding groove 16, so that the movable plate 7 near the central axis of the stirring paddle 3 always fits against the limiting ring 13. On the other hand, through the action of the tension spring 21, the sleeve rod 20 moves along the sleeve 18, so that the lower mating disc 8 fits tightly against the upper mating disc 8, thereby ensuring that the two mating discs 8 always roll and engage.

[0054] Combination Figure 10 as well as Figure 12It is worth noting that: the length of the slide plate 17 in this application is greater than the length of the movable groove 19, and the length of the sliding groove 16 is greater than the length of the slide plate 17. When the slide plate 17 slides horizontally along the sliding groove 16, the slide plate 17 always blocks the movable groove 19, that is, the end of the slide plate 17 will not enter the movable groove 19, thereby ensuring the sealing performance and preventing particles from entering the sliding groove 16. In other words, the left and right ends of the movable slide plate 17 will never enter the movable groove 19, preventing moving materials from entering the sliding groove 16 and affecting the elasticity of the tension spring 21, thereby affecting the swing of the movable plate 7. This method effectively ensures the smooth operation of the up-and-down replacement motion.

[0055] The working principle of this application is as follows: The movable ring plate 4, in cooperation with the conical roller 5, enables the conical roller 5 to not only move circumferentially but also rotate on its own axis when the stirring paddle 3 rotates, further improving the uniformity of particle mixing. The inclined design of the conical roller 5 and the up-and-down movement mechanism of the movable ring plate 4 ensure that the material is effectively mixed in the radial, axial, and vertical directions, avoiding stratification. The arrangement of the movable plate 7 and the mating disc 8 promotes the vertical displacement of particles through rolling action, enhancing the mixing effect. The tension spring 21 ensures that the lower mating disc 8 is always tightly fitted to the upper mating disc 8, guaranteeing effective rolling contact between the two. The design of the sliding plate 17 and the sliding groove 16 ensures both sealing and does not affect the horizontal sliding of the sliding plate 17. The movement of the sliding plate 17 drives the horizontal movement of the sleeve 18 and the sleeve rod 20, thereby further adjusting the contact state between the lower and upper mating discs 8. The coordinated work of all components enables the stirring paddle 3 to achieve three-dimensional mixing of materials through the effective cooperation of the conical roller 5, the movable ring plate 4, the movable plate 7, and the mating disc 8 while rotating at low speed, ensuring the uniformity and quality of granulation.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-level wet mixing granulator for improving granulation uniformity, comprising: The cylinder (1) and the transmission device (2) are provided with a stirring paddle (3) inside the cylinder (1) and the output shaft of the transmission device (2) passes through the cylinder (1) to drive the stirring paddle (3). Its characteristic is that it further includes: The moving ring plate (4) has multiple conical rollers (5) rotatably connected to the surface of the central shaft of the stirring paddle (3). The conical rollers (5) are in rolling cooperation with the moving ring plate (4). The top of the central shaft of the stirring paddle (3) is fixedly connected to an inclined moving disc (6). The top of the moving disc (6) is pressed against a telescopic component that is connected and fixed to the inner wall of the cylinder (1). The telescopic component drives the moving ring plate (4) to move up and down along the outer surface of the conical rollers (5). The bottom of the movable ring plate (4) is rotatably connected to two movable plates (7) that are staggered. The ends of the two movable plates (7) are respectively fixedly connected to mating discs (8) that rotate and cooperate with each other. One of the mating discs (8) rolls along the other mating disc (8).

2. The high-position wet mixing granulator for improving granulation uniformity according to claim 1, characterized in that: The telescopic component includes a telescopic rod (9) with an internal elastic compression spring. The telescopic end of the telescopic rod (9) has an inclined surface (10). The inclined surface (10) cooperates with the top surface of the movable disc (6). The top end of the telescopic rod (9) is connected and fixed to the cylinder (1) through a connecting rod (11). The movable ring plate (4) is connected and fixed to the telescopic end of the telescopic rod (9) through an L-shaped connecting rod (12).

3. The high-position wet mixing granulator for improving granulation uniformity according to claim 1, characterized in that: The tapered roller (5) is fixedly connected to the top and bottom positions of the limiting ring (13). The limiting ring (13) located at the upper and lower positions is in a limiting cooperation with the movable ring plate (4). One of the movable plates (7) is in a pressing cooperation with the limiting ring (13) located below.

4. The high-position wet mixing granulator for improving granulation uniformity according to claim 3, characterized in that: A pressure bead (14) that presses against the movable plate (7) is fixedly connected to the lower limiting ring (13).

5. The high-position wet mixing granulator for improving granulation uniformity according to claim 1, characterized in that: The bottom of the movable ring plate (4) is fixedly connected to a fixed plate (15). The mating disc (8) located above is rotatably connected to the fixed plate (15) via a rotating shaft (22). A sliding groove (16) is provided inside the movable ring plate (4). A sliding plate (17) is slidably fitted inside the sliding groove (16). A sleeve (18) is fixedly connected to the sliding plate (17). An movable groove (19) is provided outside the movable ring plate (4) and slidably fitted with the sleeve (18). The mating disc (8) located above passes through the movable groove (19) and contacts the sliding plate (17).

6. The high-position wet mixing granulator for improving granulation uniformity according to claim 5, characterized in that: A sleeve rod (20) is fitted inside the sleeve (18), and the end of the sleeve rod (20) is rotatably connected to the central shaft of the mating disc (8) located below.

7. The high-position wet mixing granulator for improving granulation uniformity according to claim 1, characterized in that: The diameter of the mating disc (8) located below is smaller than the diameter of the mating disc (8) located above.

8. The high-position wet mixing granulator for improving granulation uniformity according to claim 5, characterized in that: A tension spring (21) is rotatably connected inside the movable groove (19), and the other end of the tension spring (21) passes through the sleeve (18) and is connected to the sleeve rod (20).

9. The high-position wet mixing granulator for improving granulation uniformity according to claim 5, characterized in that: The length of the slide plate (17) is greater than the length of the movable groove (19), and the length of the sliding groove (16) is greater than the length of the slide plate (17).

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