Granulator for medicine production

By designing efficient pelleting components and uniform feeding components, the problem of feed clogging in traditional pellet mills has been solved, achieving uniform feeding and efficient pelleting, thus improving the operational stability and efficiency of the pellet mill.

CN223832268UActive Publication Date: 2026-01-27SHANGHAI CHANGSHAOSONG PHARM (XIANGCHENG) CO LTD
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Patent Information

Application Number
CN202520000885.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-01-27
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

Traditional pellet mills experience blockages during feeding due to the stickiness of the material, which affects pelleting efficiency.

Method used

It adopts a high-efficiency granulation component and a uniform feeding component, including a granulator, a transmission cylinder, a pressure roller, a motor, a material tray, a discharge hopper, a toothed ring, a rubber strip, and an arc-shaped pusher ring. It achieves uniform feeding and extrusion granulation through oscillation force and oblique friction force.

Benefits of technology

This avoids material blockage, improves pelleting efficiency and uniformity, and enhances the stability and efficiency of the pellet mill.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223832268U_ABST
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Abstract

The utility model relates to the technical field of medicine production, and discloses a granulator for medicine production, which comprises a support frame, a high-efficiency granulation component is arranged on the support frame, the high-efficiency granulation component is used for uniformly granulating medicine raw materials, the high-efficiency granulation component comprises a granulation vessel, a transmission cylinder, a pressing wheel and a motor, and the support frame is arranged on the transmission cylinder. A uniform feeding assembly is arranged on the supporting frame and used for uniform feeding of the granulator, rubber strips can deform and expand outwards under the action of centrifugal force when the rotating shaft rotates, so that rubber balancing weights on the rubber strips can hit the outer surface of a charging tray, and certain oscillating force is generated; the oscillating force enables the materials in the material tray to uniformly fall into the granulation vessel from the discharging hopper, the uniform feeding assembly can enable the efficient granulation assembly to be uniformly fed, and the problem that the granulation efficiency is affected due to the fact that blockage is easily caused by the viscosity of the materials during feeding in a traditional mode is solved.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production technology, specifically to a granulator for pharmaceutical production. Background Technology

[0002] Granulators play a vital role in the pharmaceutical industry. Their main function is to process powdered, molten, or solution-based materials into granules of a certain shape and size. Granular drugs are more stable during storage and transportation and are less prone to deterioration. Furthermore, the granulation process facilitates subsequent processes such as tableting and filling, simplifying the pharmaceutical manufacturing process.

[0003] In traditional pelleting methods, the material itself is sticky and tends to stick together at key locations during feeding, causing blockages. This prevents the material from being fed into the pellet mill stably, which greatly affects the pelleting efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a granulator for pharmaceutical production, which solves the problem that in traditional granulation methods, the material itself is sticky and tends to stick at key locations during feeding, causing blockages and preventing the material from being stably fed into the granulator, thus significantly affecting the granulation efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a granulator for drug production, comprising a support frame, on which a high-efficiency granulation component is provided. The high-efficiency granulation component is used to uniformly granulate drug raw materials. The high-efficiency granulation component includes a granulation vessel, a transmission cylinder, a pressure roller, and a motor.

[0008] The support frame is equipped with a uniform feeding component, which is used for uniform feeding of the pellet mill. The uniform feeding component includes a material tray, a discharge hopper, a gear ring, gears, rubber strips, and an arc-shaped pusher ring.

[0009] The granulator in the high-efficiency granulation component is fixedly connected to the support frame, and multiple granulation holes are evenly opened on the conical bottom wall and vertical surface of the lower half of the granulator.

[0010] The transmission cylinder is rotatably connected to the lower surface of the top plate of the support frame. The lower end of the transmission cylinder is fixedly connected to the first fixing plate, and the lower surface of the first fixing plate is fixedly connected to two pressure roller fixing frames.

[0011] The two pressure rollers are rotatably connected in their respective pressure roller fixing frames. The outer surface of the pressure roller is a cone shape that matches the angle of the bottom wall of the granulator. The outer surface of the pressure roller is uniformly provided with grooves to improve friction. A motor is fixedly installed on the support frame, and the output shaft of the motor is fixedly inserted into the transmission cylinder.

[0012] Preferably, the material tray in the uniform feeding assembly is fixedly sleeved on the outer surface of the transmission cylinder, the arc-shaped pusher ring is fixedly connected to the lower surface of the top plate of the support frame, and a material collection box for collecting particles is provided below the first fixed plate.

[0013] Preferably, the arc-shaped plate of the arc-shaped pusher ring is fitted to the inner wall of the material tray, and the two discharge hoppers are respectively fixedly connected to the outer surface of the first fixed plate by a fixing frame.

[0014] Preferably, the openings of both discharge hoppers are fixedly connected to the material tray, and the lower outlets of the discharge hoppers extend into the granulation vessel.

[0015] Preferably, the toothed ring is fixedly sleeved on the outer surface of the material tray, and a rotating shaft fixing plate is fixedly connected to one side of each of the two vertical plates of the support frame, and a rotating shaft is rotatably connected to each of the rotating shaft fixing plates.

[0016] Preferably, the two gears are respectively fixedly sleeved on the outer surface of the corresponding rotating shaft, and multiple rubber strips are respectively fixedly connected to the rotating shaft. Each rubber strip is fixedly connected to a rubber counterweight at the end away from the rotating shaft. The rubber counterweight is used to strike the material tray.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a granulator for drug production, which has the following features:

[0019] Beneficial effects:

[0020] 1. This granulator for drug production uses centrifugal force to deform and expand the rubber strip when the shaft rotates. This causes the rubber counterweight on the strip to strike the outer surface of the feed tray, generating a certain vibration force. The vibration force causes the material in the feed tray to fall evenly from the discharge hopper into the granulation vessel. The uniform feeding component ensures that the high-efficiency granulation component is fed evenly, avoiding the problem of clogging caused by the stickiness of the material during feeding in traditional methods, which affects granulation efficiency.

[0021] 2. This granulator for drug production can squeeze the material from the granulation holes into granules when the outer surface of the pressure roller contacts the bottom wall of the granulation vessel, and then the granules fall into the material collection box. At the same time, when the pressure roller is rotating, the side of it near the transmission cylinder will also squeeze the granulation holes on the vertical surface of the granulation vessel. This improves the granulation efficiency to a certain extent. Moreover, because this extrusion method has a certain oblique friction, it is more efficient than the granulation effect of the traditional single-direction extrusion method and can produce more uniform granules. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the pressure roller structure of this utility model.

[0025] In the diagram: 1. Support frame; 2. Granulator; 3. Transmission cylinder; 4. First fixed plate; 5. Pressure roller fixing frame; 6. Pressure roller; 7. Material tray; 8. Discharge hopper; 9. Gear ring; 10. Rotary shaft fixing plate; 11. Gear; 12. Rotary shaft; 13. Rubber strip; 14. Arc-shaped pusher ring; 15. Motor; 16. Material collection box. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 This utility model provides a new technical solution: a granulator for drug production, including a support frame 1, on which a high-efficiency granulation component is provided. The high-efficiency granulation component is used to uniformly granulate drug raw materials. The high-efficiency granulation component includes a granulation vessel 2, a transmission cylinder 3, a pressure roller 6, and a motor 15.

[0028] Support frame 1, on which a uniform feeding component is provided. The uniform feeding component is used for uniform feeding of the pellet mill. The uniform feeding component includes a material tray 7, a discharge hopper 8, a gear ring 9, a gear 11, a rubber strip 13, and an arc-shaped pusher ring 14.

[0029] In the high-efficiency granulation component, the granulator 2 is fixedly connected to the support frame 1, and multiple granulation holes are evenly opened on the conical bottom wall and vertical surface of the lower half of the granulator 2.

[0030] The transmission cylinder 3 is rotatably connected to the lower surface of the top plate of the support frame 1. The lower end of the transmission cylinder 3 is fixedly connected to the first fixing plate 4, and the lower surface of the first fixing plate 4 is fixedly connected to two pressure roller fixing frames 5.

[0031] Two pressure rollers 6 are rotatably connected to the corresponding pressure roller fixing frame 5. The outer surface of the pressure roller 6 is a cone shape that matches the angle of the bottom wall of the granulator 2. The outer surface of the pressure roller 6 is evenly provided with grooves to improve friction. A motor 15 is fixedly installed on the support frame 1. The output shaft of the motor 15 is fixedly inserted into the transmission cylinder 3.

[0032] Furthermore, the material tray 7 in the uniform feeding assembly is fixedly sleeved on the outer surface of the transmission cylinder 3, the arc-shaped pusher ring 14 is fixedly connected to the lower surface of the top plate of the support frame 1, and a material collection box 16 for collecting particles is provided below the first fixed plate 4.

[0033] Furthermore, the arc-shaped plate of the arc-shaped pusher ring 14 is fitted to the inner wall of the material tray 7, and the two discharge hoppers 8 are respectively fixedly connected to the outer surface of the first fixed plate 4 by a fixing frame.

[0034] Furthermore, the openings of both discharge hoppers 8 are fixedly connected to the material tray 7, and the lower outlets of the discharge hoppers 8 extend into the granulator 2.

[0035] Furthermore, the gear ring 9 is fixedly sleeved on the outer surface of the material tray 7, and the two vertical plates of the support frame 1 are fixedly connected to the opposite side of the rotating shaft fixing plate 10, and the rotating shaft 12 is rotatably connected to the rotating shaft fixing plate 10.

[0036] Furthermore, two gears 11 are respectively fixedly sleeved on the outer surface of the corresponding rotating shaft 12, and multiple rubber strips 13 are respectively fixedly connected to the rotating shaft 12. A rubber counterweight is fixedly connected to the end of the rubber strip 13 away from the rotating shaft 12. The rubber counterweight is used to strike the material tray 7.

[0037] Furthermore, during use, by starting the motor 15, the output shaft of the motor 15 can drive the two pressure roller fixing frames 5 on the first fixed plate 4 to rotate via the transmission cylinder 3. When the two pressure roller fixing frames 5 rotate, they drive the pressure rollers 6 on them to roll and press inside the granulator 2. At this time, the rotating transmission cylinder 3 can synchronously drive the material tray 7 on it to rotate. When the material tray 7 rotates, since the arc-shaped pusher ring 14 inside it is fixed, the material in the material tray 7 is pushed into the discharge hopper 8 under the action of the arc-shaped pusher ring 14. At this time, the rotating material tray 7 can also drive the toothed ring 9 on it to rotate. The rotating gear ring 9 can drive the gear 11 and the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, the centrifugal force can deform the rubber strip 13 and expand it outward, so that the rubber counterweight on it can strike the outer surface of the material tray 7, thereby generating a certain vibration force. The vibration force can make the material in the material tray 7 fall evenly from the discharge hopper 8 into the pelleting vessel 2. The uniform feeding component can make the high-efficiency pelleting component be fed evenly, avoiding the problem of easy blockage due to the stickiness of the material during feeding in the traditional method, which affects the pelleting efficiency.

[0038] Furthermore, the material falling into the granulator 2 is contacted by the rotating roller 6. When the outer surface of the roller 6 contacts the bottom wall of the granulator 2, it can squeeze the material from the granulation hole into granules, which then fall into the material collection box 16. At the same time, when the roller 6 is rotating, the side of the roller 6 that is close to the transmission cylinder 3 will also squeeze the granulation hole on the vertical surface of the granulator 2. This improves the granulation efficiency to a certain extent. Moreover, because this squeezing method has a certain oblique friction, it is more efficient than the granulation effect of the traditional single-direction squeezing method and can produce more uniform granules.

[0039] Working principle: When in use, the motor 15 is started. The output shaft of the motor 15 drives the two pressure roller fixing frames 5 on the first fixed plate 4 to rotate through the transmission cylinder 3. When the two pressure roller fixing frames 5 rotate, they drive the pressure rollers 6 on them to roll and press inside the granulator 2. At this time, the rotating transmission cylinder 3 can synchronously drive the material tray 7 on it to rotate. When the material tray 7 rotates, the arc-shaped pusher ring 14 inside it is fixed. The material in the material tray 7 is pushed into the discharge hopper 8 under the action of the arc-shaped pusher ring 14. At this time, the rotating material tray 7 can also drive the gear ring 9 on it to rotate. The rotating gear ring 9 can drive the gear 11 and the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, the centrifugal force can deform the rubber strip 13 and expand it outward, so that the rubber counterweight on it can strike the outer surface of the material tray 7, thereby generating a certain vibration force. The vibration force can make the material in the material tray 7 fall evenly from the discharge hopper 8 into the granulator 2.

[0040] Furthermore, the material falling into the granulator 2 will be contacted by the pressure roller 6, which is rotating and pressing. When the outer surface of the pressure roller 6 contacts the bottom wall of the granulator 2, it can squeeze the material from the granulation hole into granules, which then fall into the material collection box 16. At the same time, when the pressure roller 6 is rotating and pressing, the side of it close to the transmission cylinder 3 will also squeeze the granulation hole on the vertical surface of the granulator 2.

[0041] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A granulator for drug production, characterized in that: It includes a support frame (1), on which a high-efficiency granulation component is provided. The high-efficiency granulation component is used to uniformly granulate drug raw materials. The high-efficiency granulation component includes a granulation vessel (2), a transmission cylinder (3), a pressure roller (6), and a motor (15). Support frame (1), on which a uniform feeding component is provided. The uniform feeding component is used for uniform feeding of the pellet mill. The uniform feeding component includes a material tray (7), a discharge hopper (8), a gear ring (9), a gear (11), a rubber strip (13), and an arc-shaped pusher ring (14). The granulator (2) in the high-efficiency granulation assembly is fixedly connected to the support frame (1). Multiple granulation holes are evenly opened on the conical bottom wall and vertical surface of the lower half of the granulator (2). The transmission cylinder (3) is rotatably connected to the lower surface of the top plate of the support frame (1). The lower end of the transmission cylinder (3) is fixedly connected to the first fixing plate (4), and the lower surface of the first fixing plate (4) is fixedly connected to two pressure roller fixing frames (5). The two pressure rollers (6) are rotatably connected in the corresponding pressure roller fixing frame (5). The outer surface of the pressure roller (6) is a cone shape that matches the angle of the bottom wall of the granulator (2). The outer surface of the pressure roller (6) is evenly provided with grooves to improve friction. A motor (15) is fixedly installed on the support frame (1). The output shaft of the motor (15) is fixedly inserted into the transmission cylinder (3).

2. The granulator for drug production according to claim 1, characterized in that: The material tray (7) in the uniform feeding assembly is fixedly sleeved on the outer surface of the transmission cylinder (3), the arc-shaped pusher ring (14) is fixedly connected to the lower surface of the top plate of the support frame (1), and a material collection box (16) for collecting particles is provided below the first fixed plate (4).

3. A granulator for drug production according to claim 2, characterized in that: The arc-shaped pusher ring (14) is fitted to the inner wall of the material tray (7), and the two discharge hoppers (8) are respectively fixedly connected to the outer surface of the first fixed plate (4) by a fixing frame.

4. A granulator for drug production according to claim 3, characterized in that: The openings of both discharge hoppers (8) are fixedly connected to the material tray (7), and the lower outlets of the discharge hoppers (8) extend into the granulator (2).

5. A granulator for drug production according to claim 4, characterized in that: The gear ring (9) is fixedly sleeved on the outer surface of the tray (7). The two vertical plates of the support frame (1) are fixedly connected to a rotating shaft fixing plate (10) on opposite sides. A rotating shaft (12) is rotatably connected to the rotating shaft fixing plate (10).

6. A granulator for drug production according to claim 5, characterized in that: Two gears (11) are fixedly sleeved on the outer surface of the corresponding rotating shaft (12), and multiple rubber strips (13) are fixedly connected to the rotating shaft (12). A rubber counterweight is fixedly connected to the end of each rubber strip (13) away from the rotating shaft (12). The rubber counterweight is used to strike the material tray (7).