A traditional Chinese medicine decoction piece crushing and filtering device

By designing the screening machine base and scraper system to prevent splashing during the crushing of Chinese herbal medicine pieces, and combining the spiral crushing roller and conical cylinder structure, the splashing problem during the crushing of Chinese herbal medicine pieces is solved, achieving efficient screening and environmental cleanliness.

CN224541835UActive Publication Date: 2026-07-24YUNNAN YONGSHUNTANG DECOCTION PIECES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN YONGSHUNTANG DECOCTION PIECES CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the current process of pulverizing Chinese medicinal herbs, the high-speed rotating pulverizing components cause fine particles of herbs to splatter, resulting in waste of medicinal materials, environmental pollution, and affecting the cleanliness of the production environment.

Method used

A crushing and filtering device for Chinese herbal medicine slices was designed, comprising a screening machine base, a collection bin, a mounting frame, a screening bin, a scraper, and a motor-driven scraper system. The scraper and unblocking rod prevent material splashing, and the feeding channel is controlled by a spiral crushing roller and a conical cylinder structure to prevent blockage.

Benefits of technology

It effectively prevents the splashing of Chinese herbal medicine fragments, reduces waste and pollution, keeps the production environment clean, improves screening efficiency and equipment stability, and reduces cleaning and labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of crushing filter device of traditional Chinese medicine decoction pieces, it is related to traditional Chinese medicine processing field, the crushing filter device of traditional Chinese medicine decoction pieces, including screening machine base, the top of screening machine base is screw jointed with collection bin, the outside of collection bin is fixedly connected with two mounting brackets, two The inside between two mounting brackets is slidably connected with two screening bins, the inner chamber bottom of two screening bins is equipped with round edge through-hole, and the round edge through-hole is evenly distributed, the inner chamber wall of screening bin is fixedly connected with fixed plate, the bottom of fixed plate is fixedly connected with first motor, the power output shaft bottom end of first motor is fixedly connected with mounting rod, the crushing filter device of traditional Chinese medicine decoction pieces can effectively block the outward spatter of traditional Chinese medicine decoction pieces broken powder in the process of crushing, reduce the waste of medicinal materials, reduce material loss cost, can timely dredge the round edge through-hole of screening bin bottom, prevent traditional Chinese medicine decoction pieces broken powder from blocking filter hole.
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Description

Technical Field

[0001] This utility model relates to a crushing and filtering device for Chinese herbal medicine slices, specifically a crushing and filtering device for Chinese herbal medicine slices, belonging to the field of Chinese herbal medicine processing technology. Background Technology

[0002] The crushing and filtering device for Chinese herbal medicine (TCM) decoction pieces is a key piece of equipment used in the processing and extraction of TCM raw materials. It mainly consists of two core modules: crushing and filtering. The crushing module is typically equipped with high-speed rotating blades, grinding hammers, or extrusion rollers. The crushing force and particle size can be adjusted according to the material of the decoction pieces (such as roots, leaves, flowers, etc.) to crush large pieces into suitable coarse or fine powder, thereby increasing the contact area between the material and the solvent and improving the subsequent extraction efficiency. The filtering module separates the crushed residue from the liquid through methods such as filter screens, centrifugation, or pressure filtration, removing impurities and obtaining a clear extract to ensure the purity of the extract. This type of device is widely used in the production of TCM preparations and can effectively improve production efficiency and the quality of TCM products.

[0003] The prior art patent application number (201721175335.2) entitled "A Crushing and Filtering Device for Chinese Herbal Medicine Pieces" includes a housing fixed to the ground. A slot is formed on the upper surface of the housing, and a herbal medicine collection box is attached to the inner wall of the slot. A baffle is attached to the central axis of the inner wall of the herbal medicine collection box, and a sieve hopper is welded to the top outer wall of the baffle. A screen is attached to the top outer wall of the sieve hopper. Four fixing plates are fixed to the two sides of the top outer wall of the screen by screws, and each of the four fixing plates has a tension spring fixed to its central axis by screws with washers. This invention uses a pressure roller for compression and a grinding roller for shredding, resulting in a high degree of herbal medicine fragmentation. A double-helix tension spring, combined with an eccentric slide rail, allows the sieve hopper to perform multi-directional vibration filtration. A fixing clamp, fixing rod, and angle adjustment rod work together to adjust the bending degree of the screen, making it suitable for herbal medicine fragments in different states. A motor drives the grinding roller and pressure roller for efficient and rapid crushing.

[0004] However, in existing Chinese medicine pulverizing mechanisms, when the high-speed pulverizing components grind and cut Chinese medicinal herbs, the broken-down herbs are scattered in all directions due to the lack of an effective containment structure. This scattering of powder not only causes direct waste of medicinal materials and increases production costs, but also adheres to the equipment surface, workbench, and even the workshop floor, making it difficult to clean and affecting the cleanliness of the production environment. Therefore, a new technical solution needs to be designed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to provide a crushing and filtering device for Chinese herbal medicine slices in order to solve the above-mentioned problems. This device addresses the issue that when high-speed pulverizing components grind and cut Chinese herbal medicine slices in the prior art, the slices, which are crushed into fine particles, will scatter in all directions due to the lack of an effective containment structure.

[0006] This utility model is achieved through the following technical solution: a crushing and filtering device for traditional Chinese medicine decoction pieces.

[0007] The system includes a screening machine base, with a collection bin screwed to the top. Two mounting brackets are fixedly connected to the outer side of the collection bin, and two screening bins are slidably connected between the inner sides of the two mounting brackets. The bottom of the inner cavity of each screening bin has evenly distributed, rounded through holes. A discharge port is fixedly connected to the outer side of each screening bin. The screening machine base provides stable support for the entire equipment. The screwed collection bin facilitates disassembly and cleaning. The dual screening bin design enables graded screening, improving screening efficiency. The rounded through holes reduce material blockage, and the slidably connected screening bins, combined with the discharge port, allow for easy removal of different sizes of screened materials as needed.

[0008] Preferably, a fixing plate is fixedly connected to the inner wall of the screening chamber, and a first motor is fixedly connected to the bottom of the fixing plate. A mounting rod is fixedly connected to the bottom end of the power output shaft of the first motor. The fixing plate provides a stable mounting base for the first motor. The first motor drives the mounting rod to rotate, which can drive the subsequent components to run synchronously, realize automated operation, reduce manual intervention, and improve the stability and efficiency of the screening process.

[0009] Preferably, four scrapers are fixedly connected to the outer side of the mounting rod. An installation groove is provided on one side of each scraper. When the four scrapers rotate with the mounting rod, they can scrape off the material on the inner wall of the screening chamber, preventing material from adhering and accumulating. The installation groove provides installation space for subsequent unblocking components, making the structural layout more reasonable.

[0010] Preferably, an installation cylinder is fixedly connected to the top of the installation groove, and the installation cylinders are arranged in sequence. A compression spring is embedded in the inner cavity of the installation cylinder, and a clearing rod is slidably connected to the inner cavity of the installation cylinder. The bottom end of the clearing rod passes through the installation cylinder and extends to the inner side of the round edge through hole. The installation cylinder provides an installation carrier for the compression spring and the clearing rod. The elastic force of the compression spring can push the clearing rod to always be in contact with the round edge through hole, automatically clearing the through hole during the rotation of the scraper, effectively preventing material from clogging the through hole and ensuring continuous screening.

[0011] Preferably, a crushing chamber is screwed between the tops of the two mounting brackets. Two second motors are fixedly connected to one side of the crushing chamber. One end of the power output shaft of the second motor passes through the crushing chamber and extends into the inner cavity of the crushing chamber. A spiral crushing roller is fixedly connected to one end of the power output shaft of the second motor. The screwed crushing chamber facilitates maintenance and replacement of internal components. The two second motors drive the two spiral crushing rollers to rotate relative to each other, which can fully squeeze, shear and crush the material, improve crushing efficiency and crushing effect, and meet the crushing needs of different materials.

[0012] Preferably, a feeding bin is fixedly connected to the top of the crushing bin, a feeding pipe is fixedly connected to the top of the feeding bin, an mounting plate is fixedly connected to the inner wall of the feeding pipe, and a conical cylinder is fixedly connected to the top of the mounting plate.

[0013] Preferably, the top of the feeding hopper is fixedly connected to two fixing frames. The top of the inner side wall of the fixing frame is rotatably connected to a threaded rod, and a connecting plate is screwed to the outer side of the threaded rod. A fitting cylinder is fixedly connected to one side of the connecting plate. The inner side of the fitting cylinder fits against the conical cylinder. The feeding hopper and the feeding pipe form a material conveying channel. The conical cylinder is designed to guide the material to fall in a concentrated manner using its inclined surface, avoiding material accumulation and blockage at the feeding port. The mounting plate provides stable support for the conical cylinder, ensuring smooth feeding.

[0014] Preferably, a third motor is fixedly connected to the top of the fixed frame on one side, and the bottom end of the power output shaft of the third motor is fixedly connected to the threaded rod on one side. The fixed frame provides stable support for the threaded rod. When the threaded rod rotates, it drives the connecting plate and the fitting cylinder to move up and down. The fitting cylinder fits with the conical cylinder to adjust the size of the feeding channel, thereby controlling the amount of material fed and adapting to the needs of different crushing speeds.

[0015] This utility model provides a crushing and filtering device for traditional Chinese medicine decoction pieces, which has the following beneficial effects: 1. This crushing and filtering device for Chinese herbal medicine slices, through its anti-splashing mechanism, effectively prevents the outward splashing of Chinese herbal medicine slices during the crushing process, reducing waste of medicinal materials and lowering material loss costs. It also prevents the powder from adhering to the equipment surface, work surface, and workshop environment, maintaining a clean production environment and reducing the burden of subsequent cleaning work. Furthermore, it prevents light powder from floating in the air, reducing the risk of inhalation for operators, protecting their respiratory health, and preventing the powder from interfering with the accuracy of subsequent weighing and mixing processes, ensuring the stability of the quality of Chinese herbal medicine production.

[0016] 2. This crushing and filtering device for Chinese herbal medicine slices, through a filter hole unblocking mechanism, can promptly unclog the round-edge through holes at the bottom of the screening chamber, preventing the herbal medicine slices from clogging the filter holes, ensuring continuous and smooth screening, and improving screening efficiency; it avoids incomplete screening caused by filter hole blockage, ensuring accurate separation of herbal medicine slices of different specifications, improving screening quality; it reduces the frequency and workload of manual filter hole cleaning, lowers labor costs, and extends the service life of the equipment, ensuring long-term stable operation of the device. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the filter assembly structure of this utility model; Figure 3 This is a schematic diagram of the crushing mechanism of this utility model; Figure 4 This is a schematic diagram of the crushing mechanism of this utility model; Figure 5 This is a schematic diagram of the scraper structure of this utility model; [Explanation of Key Component Symbols] 1. Screening machine base; 101. Collection bin; 102. Mounting frame; 2. Screening bin; 201. Round-edged through hole; 202. Discharge port; 3. Fixing plate; 301. First motor; 302. Mounting rod; 4. Scraper; 401. Mounting groove; 402. Mounting cylinder; 403. Compression spring; 404. Unclogging rod; 5. Crushing chamber; 501. Second motor; 502. Spiral crushing roller; 6. Feed hopper; 601. Feed pipe; 602. Mounting plate; 603. Conical cylinder; 7. Fixing bracket; 701. Threaded rod; 702. Connecting plate; 703. Fitting cylinder; 8. Third motor. Detailed Implementation

[0018] This utility model provides a crushing and filtering device for Chinese herbal medicine slices.

[0019] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The system includes a screening machine base 1, a collection bin 101 screwed to the top of the screening machine base 1, two mounting brackets 102 fixedly connected to the outside of the collection bin 101, two screening bins 2 slidably connected between the inner sides of the two mounting brackets 102, round-edged through holes 201 evenly distributed at the bottom of the inner cavity of the two screening bins 2, and a discharge port 202 fixedly connected to the outside of the screening bins 2.

[0020] Please refer to it again. Figure 1 , Figure 2 and Figure 5 A fixing plate 3 is fixedly connected to the inner wall of the screening chamber 2. A first motor 301 is fixedly connected to the bottom of the fixing plate 3. An installation rod 302 is fixedly connected to the bottom end of the power output shaft of the first motor 301. Four scrapers 4 are fixedly connected to the outer side of the installation rod 302. An installation groove 401 is opened on one side of the scraper 4. An installation cylinder 402 is fixedly connected to the top of the installation groove 401. The installation cylinders 402 are arranged in sequence. A compression spring 403 is embedded in the inner cavity of the installation cylinder 402. A slidable rod 404 is slidably connected to the inner cavity of the installation cylinder 402. The bottom end of the slidable rod 404 passes through the installation cylinder 402 and extends to the inner side of the round edge through hole 201.

[0021] When screening chamber 2 is screening, some material may become clogged in the round-edge through hole 201, affecting screening efficiency. At this time, the first motor 301 on the fixed plate 3 starts, and its power output shaft drives the mounting rod 302 to rotate. The mounting rod 302 then drives the scraper 4 to rotate. During the rotation of the scraper 4, the unblocking rod 404 at the bottom of its scraper 4 is directly facing the round-edge through hole 201 at the bottom of the screening chamber 2. Under the action of the compression spring 403 inside the mounting cylinder 402, the unblocking rod 404 is always subjected to downward pressure and is tightly fitted to the round-edge through hole 201. When the scraper 4 rotates, the unblocking rod 404 will insert into the corresponding round edge through hole 201 one by one to clear the blocked material. The elasticity of the compression spring 403 allows the unblocking rod 404 to adapt to the blockage of the material in the through hole, which not only ensures the unblocking effect, but also avoids excessive wear of the unblocking rod 404 on the screen hole. The first motor 301 continuously drives the scraper 4 to rotate, and the unblocking rod 404 continuously unblocks the round edge through hole 201, ensuring that the material can pass through the screen hole smoothly during the screening process, thereby improving the working efficiency and screening quality of the screening machine.

[0022] Example 2, please refer to again. Figure 1 , Figure 3 and Figure 4A crushing chamber 5 is screwed between the tops of two mounting brackets 102. Two second motors 501 are fixedly connected to one side of the crushing chamber 5. One end of the power output shaft of the second motor 501 passes through the crushing chamber 5 and extends into the inner cavity of the crushing chamber 5. A spiral crushing roller 502 is fixedly connected to one end of the power output shaft of the second motor 501. A feeding chamber 6 is fixedly connected to the top of the crushing chamber 5. A feeding pipe 601 is fixedly connected to the top of the feeding chamber 6. A mounting plate 602 is fixedly connected to the inner wall of the feeding pipe 601. A conical cylinder 603 is fixedly connected to the top of plate 602. Two fixed brackets 7 are fixedly connected to the top of feed hopper 6. A threaded rod 701 is rotatably connected to the top of the inner side wall of the fixed bracket 7. A connecting plate 702 is screwed to the outer side of the threaded rod 701. A fitting cylinder 703 is fixedly connected to one side of the connecting plate 702. The inner side of the fitting cylinder 703 fits against the conical cylinder 603. A third motor 8 is fixedly connected to the top of one side fixed bracket 7. The bottom end of the power output shaft of the third motor 8 is fixedly connected to the threaded rod 701 on one side.

[0023] Regarding splash prevention, when material enters from the feed pipe 601, the conical cylinder 603 on the mounting plate 602 guides the material, allowing it to flow downwards in a concentrated manner. Simultaneously, the fitting cylinder 703 fits tightly against the conical cylinder 603, forming a relatively enclosed space that effectively prevents material from splashing outwards during its descent, reducing material waste and pollution to the surrounding environment. For channel size adjustment, the third motor 8 provides power. When the feed channel size needs adjustment, the third motor 8 starts, and its power output shaft drives the threaded section on one side. When rod 701 rotates, the connecting plate 702 moves up and down along the axial direction of the threaded rod 701 because the threaded rod 701 is screwed to the connecting plate 702. The connecting plate 702 then drives the fitting cylinder 703 to move synchronously. The relative position of the fitting cylinder 703 and the conical cylinder 603 changes, and the size of the channel formed between them also changes. By controlling the forward and reverse rotation and rotation time of the third motor 8, the size of the channel can be precisely adjusted to adapt to the feeding requirements of materials with different particle sizes and flow rates, ensuring the smooth operation of the screening work.

[0024] Working Principle: Material first enters the equipment through the feed pipe 601. During feeding, the conical cylinder 603 and the fitting cylinder 703 work together to prevent splashing. Simultaneously, the threaded rod 701 is driven to rotate by the third motor 8, causing the connecting plate 702 and the fitting cylinder 703 to move up and down, adjusting the channel size between them and the conical cylinder 603 to accommodate different material feeding requirements. Material entering the feed bin 6 then enters the crushing bin 5. Two second motors 501 start, driving the corresponding spiral crushing rollers 502 to rotate, crushing the material to make the particle size more uniform, facilitating subsequent screening. The crushed material falls into the two screening bins 2 below. The round-edge through-holes 201 at the bottom of the screening bins 2 screen the material. Material meeting the particle size requirements passes through the round-edge through-holes 201. Material falling through the side through-hole 201 into the collection bin 101 is collected, while material that does not pass through remains in the screening bin 2 and is eventually discharged through the discharge port 202. During the screening process, the first motor 301 on the fixed plate 3 starts, driving the mounting rod 302 and scraper 4 to rotate. In the mounting cylinder 402 in the mounting groove 401 on one side of the scraper 4, the compression spring 403 pushes the unblocking rod 404 to always contact the round side through-hole 201. As the scraper 4 rotates, the unblocking rod 404 can unblock the round side through-hole 201 one by one, preventing material from clogging the through-hole and affecting the screening efficiency. The entire device achieves efficient material processing through the coordinated work of crushing, screening, and unblocking. The collection bin 101 collects the screened material, while the screening machine base 1 provides stable support for the entire equipment.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crushing and filtering device for traditional Chinese medicine decoction pieces, comprising a screening machine base (1), characterized in that: The top of the screening machine base (1) is screwed with a collection bin (101), and two mounting brackets (102) are fixedly connected to the outside of the collection bin (101). Two screening chambers (2) are slidably connected between the inner sides of the two mounting brackets (102). The bottom of the inner cavity of the two screening chambers (2) is provided with round-edged through holes (201), and the round-edged through holes (201) are evenly distributed. The outer side of the screening chamber (2) is fixedly connected with a discharge port (202).

2. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The inner wall of the screening chamber (2) is fixedly connected to a fixing plate (3), and the bottom of the fixing plate (3) is fixedly connected to a first motor (301). The bottom end of the power output shaft of the first motor (301) is fixedly connected to an installation rod (302).

3. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: Four scrapers (4) are fixedly connected to the outside of the mounting rod (302), and a mounting groove (401) is provided on one side of the scraper (4).

4. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 3, characterized in that: The top of the mounting groove (401) is fixedly connected to a mounting cylinder (402), and the mounting cylinders (402) are arranged in sequence. A compression spring (403) is embedded in the inner cavity of the mounting cylinder (402), and a drain rod (404) is slidably connected to the inner cavity of the mounting cylinder (402). The bottom end of the drain rod (404) passes through the mounting cylinder (402) and extends to the inner side of the round edge through hole (201).

5. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 4, characterized in that: A crushing chamber (5) is screwed between the tops of the two mounting brackets (102). Two second motors (501) are fixedly connected to one side of the crushing chamber (5). One end of the power output shaft of the second motor (501) passes through the crushing chamber (5) and extends into the inner cavity of the crushing chamber (5). A spiral crushing roller (502) is fixedly connected to one end of the power output shaft of the second motor (501).

6. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 5, characterized in that: The top of the crushing chamber (5) is fixedly connected to the feeding chamber (6), the top of the feeding chamber (6) is fixedly connected to the feeding pipe (601), the inner wall of the feeding pipe (601) is fixedly connected to the mounting plate (602), and the top of the mounting plate (602) is fixedly connected to the conical cylinder (603).

7. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 6, characterized in that: The top of the feed hopper (6) is fixedly connected to two fixed frames (7). The top of the inner side wall of the fixed frame (7) is rotatably connected to a threaded rod (701). The outer side of the threaded rod (701) is screwed to a connecting plate (702). A fitting cylinder (703) is fixedly connected to one side of the connecting plate (702). The inner side of the fitting cylinder (703) is in contact with the conical cylinder (603).

8. The crushing and filtering device for traditional Chinese medicine decoction pieces according to claim 7, characterized in that: A third motor (8) is fixedly connected to the top of the fixed frame (7) on one side, and the bottom end of the power output shaft of the third motor (8) is fixedly connected to the threaded rod (701) on one side.