Crushing and granulating machine with screening function
By introducing a grinding mechanism and a sieving section into the pulverizer and granulator, the problem of powder contamination within the transmission mechanism is solved, achieving efficient powder sieving and collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-03
AI Technical Summary
In existing pulverizers and granulators, the processed powder is easily contaminated when collected inside the transmission mechanism, and the screening efficiency is low.
A pulverizer and granulator with sieving function was designed, including a grinding mechanism and a sieving section. The grinding mechanism consists of a mounting shaft, a drive assembly and grinding blocks. The sieving section is an inverted funnel shape. Through the cooperation of the grinding blocks and the sieving section, the effective separation and collection of medicinal powder can be achieved.
It achieves efficient screening and collection of medicinal powder, avoids contamination of medicinal powder in the transmission mechanism, and improves screening efficiency.
Smart Images

Figure CN224072054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granulator technology, specifically a crushing and granulating machine with screening function. Background Technology
[0002] A granulator is a machine used in the pharmaceutical, chemical, and food industries to crush large particles into smaller particles for output. The existing granulator process involves crushing large particles, then screening the smaller, uniform particles that meet the required particle size through a screen before outputting them. Particles that do not meet the size requirement remain in the crushing chamber for further crushing until they are completely crushed before passing through the screen again, completing the entire crushing and granulation process.
[0003] Chinese Patent CN221602176U discloses a pulverizing and granulating machine with a sieving function, including a support base, a processing box mounted on the support base, a box cover on the top of the processing box, a collection box mounted on the outside of the processing box, a small box cover on the top of the collection box, a bottom collection cover on the bottom of the processing box, and a transmission collection assembly inside the processing box. The transmission collection assembly includes a transmission mechanism located inside the processing box. A transmission motor drives a rotating rod at the output end to rotate, which in turn drives a second conical tooth at the top to rotate, which in turn drives a first conical tooth meshing with it to rotate, which in turn drives a transmission rod to rotate, thereby driving the grinding blocks to rotate and grind. The grinding blocks are arranged from large to small to fully pulverize the tablets, thereby enhancing the overall processing effect.
[0004] However, the above technical solution has the following defects: the processed medicine powder in the above pulverizer and granulator is collected by the collection cover after passing through the sieve plate, but the transmission mechanism in the device is located inside the processing box, which makes the medicine powder contaminated and inconvenient to use. Utility Model Content
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a crushing and granulating machine with a screening function.
[0006] The technical solution of this utility model is as follows: a crushing and granulating machine with screening function, including a support, a first discharge pipe, a second discharge pipe, a processing cylinder, a cover, a feed pipe, a grinding bucket, and a screening section;
[0007] The processing cylinder is connected to the support, the cover is connected to the upper end of the processing cylinder, the first discharge pipe is connected to the lower end of the processing cylinder, and the feed pipe is connected to the cover.
[0008] The grinding mechanism is connected to the cover, the grinding bucket is connected to the inner wall of the processing cylinder and is coaxially distributed with the processing cylinder, and the grinding mechanism is located above the grinding bucket;
[0009] The screening section is connected to the inner wall of the processing cylinder and is coaxially distributed with the processing cylinder. The screening section is located below the grinding hopper. The second discharge pipe is connected to the processing cylinder, and the height of the second discharge pipe corresponds to that of the screening section.
[0010] Preferably, the grinding mechanism includes a mounting shaft, a drive assembly, and a grinding block;
[0011] The mounting shaft is rotatably connected to the cover, the drive assembly is connected to the cover, the drive assembly is connected to the mounting shaft, the grinding block is connected to the lower end of the mounting shaft, and the grinding block and the mounting shaft are coaxially distributed with the processing cylinder;
[0012] The grinding block is an inverted cone shape, and its outer diameter gradually decreases downward along its axis. The shape of the grinding bucket corresponds to the shape of the grinding block, and its inner diameter gradually decreases downward along its axis.
[0013] Preferably, the grinding block is provided with a material guiding part and is distributed coaxially with the grinding block, and the outer diameter of the material guiding part gradually decreases upward along its axial direction.
[0014] Preferably, it also includes a connecting rod, a mounting part, and a scraper;
[0015] The connecting rod is connected to the lower end of the grinding block and is coaxially distributed therewith. The mounting part is rotatably connected to the screening part and is coaxially distributed therewith. The scraper is connected to the mounting part, and the lower end of the scraper is in close contact with the surface of the screening part.
[0016] The lower end of the connecting rod is provided with a mounting block, and the mounting part is provided with a mounting groove. The mounting block and the mounting groove are connected in a mating manner.
[0017] Preferably, the projected shape of the mounting block is a regular hexagon, and the shape of the mounting groove corresponds to that of the mounting block.
[0018] Preferably, the screening section is an inverted funnel shape, and the outer diameter of the screening section gradually increases downward along its primary direction.
[0019] Preferably, the lower end of the processing cylinder is provided with a feeding hopper, and the first discharge pipe is connected to the lower end of the feeding hopper.
[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0021] 1. In this utility model, the raw material is fed into the processing cylinder through the feed pipe. The grinding mechanism and the grinding bucket work together to further crush the raw material. The crushed powder falls onto the sieving section. The powder that has passed the sieving falls into the discharge hopper and is discharged through the first discharge pipe. The powder that has not passed the sieving remains above the sieving section and is discharged through the second discharge pipe.
[0022] 2. In this utility model, when the mounting block on the connecting rod is connected to the mounting groove on the mounting part, the rotation of the grinding mechanism will drive the mounting part and the scraper to rotate. The rotation of the scraper will scrape the powder on the sieving part, making the sieving part more efficient and facilitating the discharge of the sieved powder from the second discharge pipe. Attached Figure Description
[0023] Figure 1 This is a perspective view of a crushing and granulating machine with screening function proposed in this utility model.
[0024] Figure 2 This is a schematic diagram of the structure of a crushing and granulating machine with screening function proposed in this utility model.
[0025] Figure 3 This is a cross-sectional view of a crushing and granulating machine with screening function proposed in this utility model.
[0026] Reference numerals: 1. Support; 2. Feed hopper; 3. First discharge pipe; 4. Second discharge pipe; 5. Processing cylinder; 6. Mounting shaft; 7. Cover; 8. Feed pipe; 9. Drive assembly; 10. Grinding bucket; 11. Guide section; 12. Grinding block; 13. Connecting rod; 14. Mounting block; 15. Mounting section; 16. Scraper; 17. Screening section. Detailed Implementation
[0027] Example 1
[0028] like Figures 1-3 As shown, the present invention proposes a crushing and granulating machine with screening function, including a support 1, a first discharge pipe 3, a second discharge pipe 4, a processing cylinder 5, a cover 7, a feed pipe 8, a grinding bucket 10, and a screening section 17.
[0029] The processing cylinder 5 is connected to the support 1, the cover 7 is connected to the upper end of the processing cylinder 5, the first discharge pipe 3 is connected to the lower end of the processing cylinder 5, and the feed pipe 8 is connected to the cover 7.
[0030] Furthermore, the lower end of the processing cylinder 5 is provided with a feeding hopper 2, and the first discharge pipe 3 is connected to the lower end of the feeding hopper 2.
[0031] The grinding mechanism is connected to the cover 7, and the grinding bucket 10 is connected to the inner wall of the processing cylinder 5 and is coaxially distributed with the processing cylinder 5. The grinding mechanism is located above the grinding bucket 10.
[0032] The screening section 17 is connected to the inner wall of the processing cylinder 5 and is coaxially distributed with the processing cylinder 5. The screening section 17 is located below the grinding bucket 10. The second discharge pipe 4 is connected to the processing cylinder 5, and the height of the second discharge pipe 4 corresponds to that of the screening section 17.
[0033] Furthermore, the screening section 17 is an inverted funnel shape, and the outer diameter of the screening section 17 gradually increases downward along its primary direction.
[0034] In this invention, the raw material is fed into the processing cylinder 5 through the feed pipe 8. The grinding mechanism and the grinding bucket 10 work together to further crush the raw material. The crushed powder falls onto the sieve section 17. The powder that has been sieved falls into the feed hopper 2 and is discharged through the first discharge pipe 3. The powder that has not been sieved remains above the sieve section 17 and is discharged through the second discharge pipe 4.
[0035] Example 2
[0036] like Figures 2-3 As shown, the present invention proposes a pulverizer and granulator with a sieving function. Compared with Embodiment 1, the grinding mechanism in this embodiment includes a mounting shaft 6, a drive assembly 9, and a grinding block 12.
[0037] The mounting shaft 6 is rotatably connected to the cover 7, the drive assembly 9 is connected to the cover 7, the drive assembly 9 is connected to the mounting shaft 6 in a transmission manner, the grinding block 12 is connected to the lower end of the mounting shaft 6, and the grinding block 12 and the mounting shaft 6 are coaxially distributed with the processing cylinder 5;
[0038] The grinding block 12 is an inverted cone shape, and the outer diameter of the grinding block 12 gradually decreases downward along its axis. The shape of the grinding bucket 10 corresponds to the shape of the grinding block 12, and the inner diameter of the grinding bucket 10 gradually decreases downward along its axis.
[0039] Furthermore, the grinding block 12 is provided with a guide part 11 and is coaxially distributed with the grinding block 12. The outer diameter of the guide part 11 gradually decreases upward along its axial direction.
[0040] In this embodiment, the drive component 9 starts and drives the mounting shaft 6 and the grinding block 12 to rotate, feeding the raw material from the feed pipe 8 into the processing cylinder 5. The raw material enters the gap between the grinding block 12 and the grinding bucket 10 along the inclined guide part 11. The outer peripheral surface of the grinding block 12 cooperates with the inner peripheral surface of the grinding bucket 10 to crush the raw material.
[0041] Example 3
[0042] like Figures 2-3 As shown, the present invention proposes a crushing and granulating machine with screening function. Compared with Embodiment 1, this embodiment also includes a connecting rod 13, a mounting part 15 and a scraper 16.
[0043] The connecting rod 13 is connected to the lower end of the grinding block 12 and is coaxially distributed therewith. The mounting part 15 is rotatably connected to the screening part 17 and is coaxially distributed therewith. The scraper 16 is connected to the mounting part 15, and the lower end of the scraper 16 is in close contact with the surface of the screening part 17.
[0044] The lower end of the connecting rod 13 is provided with a mounting block 14, and the mounting part 15 is provided with a mounting groove. The mounting block 14 is connected to the mounting groove.
[0045] Furthermore, the projected shape of the mounting block 14 is a regular hexagon, and the shape of the mounting groove corresponds to that of the mounting block 14.
[0046] In this embodiment, when the mounting block 14 on the connecting rod 13 is connected to the mounting groove on the mounting part 15, the rotation of the grinding mechanism will drive the mounting part 15 and the scraper 16 to rotate. The rotation of the scraper 16 will scrape the powder on the sieving part 17, making the sieving part 17 more efficient and facilitating the discharge of the sieved powder from the second discharge pipe 4.
[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A pulverizing and granulating machine with a screening function, characterized in that, The support (1), the first discharge pipe (3), the second discharge pipe (4), the processing cylinder (5), the cover (7), the feeding pipe (8), the grinding hopper (10) and the screening part (17) are connected. The processing cylinder (5) is connected with the support (1), the cover (7) is connected with the upper end of the processing cylinder (5), the first discharge pipe (3) is connected with the lower end of the processing cylinder (5), and the feeding pipe (8) is connected with the cover (7). The grinding mechanism is connected with the cover (7), the grinding hopper (10) is connected with the inner wall of the processing cylinder (5) and is coaxially distributed with the processing cylinder (5), and the grinding mechanism is located above the grinding hopper (10). The screening part (17) is connected with the inner wall of the processing cylinder (5) and is coaxially distributed with the processing cylinder (5), the screening part (17) is located below the grinding hopper (10), and the second discharge pipe (4) is connected with the processing cylinder (5), and the height of the second discharge pipe (4) corresponds to the screening part (17).
2. The crushing and granulating machine with a sifting function according to claim 1, characterized in that, The grinding mechanism comprises a mounting shaft (6), a driving assembly (9) and a grinding block (12). The mounting shaft (6) is rotatably connected with the cover (7), the driving assembly (9) is connected with the cover (7), the driving assembly (9) is drivingly connected with the mounting shaft (6), the grinding block (12) is connected with the lower end of the mounting shaft (6), and the grinding block (12) and the mounting shaft (6) are coaxially distributed with the processing cylinder (5). The grinding block (12) is a reverse conical shape, the outer diameter of the grinding block (12) gradually decreases along the axial direction, the shape of the grinding hopper (10) corresponds to the shape of the grinding block (12), and the inner diameter of the grinding hopper (10) gradually decreases along the axial direction.
3. The crushing and granulating machine with a sifting function according to claim 2, characterized in that, The grinding block (12) is provided with a guide part (11) and is coaxially distributed with the grinding block (12), and the outer diameter of the guide part (11) gradually decreases along the axial direction.
4. The crushing and granulating machine with a classifying function according to claim 1 or 2, characterized in that, Further comprising a connecting rod (13), a mounting part (15) and a scraping rod (16). The connecting rod (13) is connected with the lower end of the grinding block (12) and is coaxially distributed with the grinding block (12), the mounting part (15) is rotatably connected with the screening part (17) and is coaxially distributed with the screening part (17), the scraping rod (16) is connected with the mounting part (15), and the lower end of the scraping rod (16) is tightly attached to the surface of the screening part (17). The lower end of the connecting rod (13) is provided with a mounting block (14), the mounting part (15) is provided with a mounting groove, and the mounting block (14) is connected with the mounting groove.
5. The crushing and granulating machine with a sifting function according to claim 4, characterized in that, The projection shape of the mounting block (14) is a regular hexagon, and the shape of the mounting groove corresponds to the mounting block (14).
6. The crushing and granulating machine with a sifting function according to claim 1, characterized in that, The screening part (17) is an inverted funnel shape, and the outer diameter of the screening part (17) gradually increases along the first direction.
7. The crushing and granulating machine with a sifting function according to claim 1, characterized in that, The lower end of the processing cylinder (5) is provided with a lower hopper (2), and the first discharge pipe (3) is connected with the lower end of the lower hopper (2).
Citation Information
Patent Citations
Crushing and granulating machine with screening function
CN221602176U