A medicinal material crushing device

Abstract

The present invention relates to the field of medicinal material processing technology, specifically a medicinal material crushing device, comprising a hopper mounted on a crusher, a crushing structure, and a filter plate, wherein a feed box is fixed to one side of the crusher, a feed port is provided between the crusher and the feed box, a feed mechanism is provided inside the feed box, and a shielding structure used in conjunction with the feed mechanism is provided inside the feed port; the feed mechanism comprises a hydraulic telescopic rod and a feed plate mounted inside the feed box, and an elastic structure mounted between the hydraulic telescopic rod and the feed plate, a swinging member is installed on one side of the feed plate; the shielding structure comprises a sealing plate slidably disposed in the feed port, a second magnetic block is fixed to the outer surface of the sealing plate, and a first magnetic block with the same polarity as the second magnetic block is fixed to the lower surface of the feed plate. The present invention has the advantages of optimizing the feeding process, improving crushing efficiency, high degree of automation, compact structure, and strong adaptability.

Description

Technical Field

[0001] The present invention relates to a medicinal material crushing device, in particular to a medicinal material crushing device, and belongs to the technical field of medicinal material processing. Background Art

[0002] Traditional Chinese medicine (TCM) is a drug that is collected, processed, and formulated using traditional Chinese medical theories, explaining its mechanism of action and guiding its clinical application. It is primarily derived from natural medicines and their processed products, including botanicals, animal medicines, mineral medicines, and some chemical and biological products. In hospitals, pharmaceutical factories, and other places, TCM needs to be crushed into powdered particles to facilitate subsequent packaging and patient use.

[0003] Chinese patent CN 215541505U discloses a "crushing device for processing Chinese medicinal materials, comprising a base plate, support legs fixedly connected to the four sides of the top of the base plate, a vibration spring fixedly connected to the top of the support legs, a fixed plate fixedly connected to the top of the vibration spring, a crushing box fixedly connected to the top of the fixed plate, and a retaining seat fixedly connected to the left and right sides of the inner wall of the crushing box. This application utilizes a vibration motor to vibrate the fixed plate, which simultaneously deforms and vibrates the vibration spring, driving the crushing box to vibrate. Crushed material is first screened through a screen, while uncrushed material is retained on the top of the screen for further crushing. The screen plate then separates the crushed material through holes of different sizes."

[0004] However, the above patent still has the following defects: if the crushed medicinal materials cannot be crushed for the second time, some medicinal materials may fail to reach the expected particle size requirements after the initial crushing. If these medicinal materials are not crushed for the second time, it will directly affect the subsequent use or processing of the medicinal materials, and the medicinal materials that are not completely crushed may lead to reduced efficacy because the active ingredients of the medicinal materials may not be fully released.

[0005] Therefore, it is urgent to improve the above patent to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a medicinal material crushing device, which has the advantages of optimizing the feeding process, improving crushing efficiency, high degree of automation, compact structure, easy maintenance and strong adaptability. These advantages make the device have broad application prospects in the field of medicinal material processing.

[0007] In order to achieve the above-mentioned object, the main technical solutions adopted by the present invention include: a medicinal material crushing device, comprising a hopper mounted on a crusher, a crushing structure and a filter plate, a feed box fixed to one side of the crusher, a feed opening provided between the crusher and the feed box, a feeding mechanism provided inside the feed box, and a shielding structure provided inside the feed opening for use with the feeding mechanism;

[0008] The feeding mechanism includes a hydraulic telescopic rod and a feeding plate installed inside the feeding box, and an elastic structure installed between the hydraulic telescopic rod and the feeding plate, and a swinging member is installed on one side of the feeding plate;

[0009] The shielding structure includes a sealing plate slidably arranged in the feed port, a second magnetic block is fixed to the outer surface of the sealing plate, and a first magnetic block with the same polarity as the second magnetic block is fixed to the lower surface of the feeding plate;

[0010] The top side of the feeding box is provided with an extrusion mechanism, and the side wall of the feeding plate is provided with a second rack for driving the extrusion mechanism.

[0011] Preferably, there are two material ports, and the two material ports are distributed up and down. When the feeding plate is not raised or lowered, it is adapted to the bottom material port. The upper surface of the feeding plate is equipped with two baffles that are symmetrically distributed and arranged in an eight-shaped shape.

[0012] Preferably, a receiving groove connected to the bottom material opening is provided inside the feeding box, and a first sliding opening and a second sliding opening are provided inside the feeding box, wherein the first sliding opening and the second sliding opening are located on the left and right sides of the feeding box, and the first sliding opening is connected to the receiving groove.

[0013] Preferably, the elastic structure includes a connecting plate fixed to the output end of the hydraulic telescopic rod, a first return spring fixed to the lower surface of the feed plate, and a first guide rod, the bottom end of the first return spring is fixed to the upper surface of the connecting plate, and the first guide rod passes through the interior of the connecting plate;

[0014] The swinging member comprises a connecting shaft which rotates on the left side of the feeding plate and passes through the interior of the second sliding port, an eccentric wheel fixed on the outer surface of the connecting shaft, and a transmission gear.

[0015] Preferably, a first rack meshing with a transmission gear is fixed on a side of the feed box away from the crusher, a sealing plate is slidably arranged in the receiving groove, and a sealing gasket is fixed on the top of the sealing plate.

[0016] Preferably, a second guide rod and a second return spring are fixed on the inner bottom wall of the storage groove, the top side of the second return spring is fixed to the lower surface of the sealing plate, an extension groove is opened on the bottom side of the sealing plate, and the top end of the second guide rod extends into the extension groove.

[0017] Preferably, a baffle for shielding the second sliding port is fixed on the side of the feeding plate away from the material port, and a connecting rod extending to the outside of the second sliding port and fixed to the bottom side of the second rack is bolted on the outer surface of the baffle.

[0018] Preferably, the extrusion mechanism includes a pushing structure and an extrusion plate, the extrusion plate is located above the feeding plate, and the shape of the extrusion plate is adapted to the feeding plate.

[0019] Preferably, the pushing structure includes two symmetrically distributed support seats, a bidirectional screw with bearings installed between the two support seats, two sliders threadedly connected to the outer surface of the bidirectional screw and symmetrically arranged, a fixed plate is fixed on the upper surface of the extrusion plate, and a pushing arm is hinged between the two sliders and the fixed plate.

[0020] Preferably, a linkage gear meshing with the second rack is fixed to the left end of the bidirectional lead screw, and a limiting rod penetrating the interior of the two sliders is fixed between the two support seats.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. In this medicinal material crushing device, when the hydraulic telescopic rod drives the feeding plate to move upward, the repulsive force between the magnetic blocks automatically drives the sealing plate to move upward to cover the material opening. This design not only achieves precise control of feeding, but also avoids the problem of medicinal materials falling off when they are not pushed. The design of the first and second magnetic blocks with like poles repelling each other makes the opening and closing of the sealing plate smoother and does not require an additional power device.

[0023] 2. In the medicinal material crushing device, when the feeding plate is rising, the engagement of the transmission gear and the first rack drives the eccentric wheel to rotate, thereby causing the feeding plate to vibrate, which helps to evenly distribute the medicinal materials on the feeding plate and prevents the medicinal materials from piling up or getting stuck, thereby optimizing the feeding process. The limiting effect of the baffle bar enables the medicinal materials to continuously approach the material port during the feeding process, ensuring that the medicinal materials can smoothly enter the crusher for crushing. At the same time, the design of the extrusion mechanism enables the medicinal materials to be fully compacted during the feeding process, thereby improving the crushing efficiency and quality of the medicinal materials.

[0024] 3. In this medicinal material crushing device, the entire feeding and crushing process is automatically controlled by a mechanical structure, without the need for manual intervention, reducing labor intensity and improving production efficiency. The meshing design of the linkage gear of the extrusion mechanism and the second rack realizes the automatic linkage control of the feeding plate and the extrusion mechanism. When the feeding plate rises, the second rack moves accordingly and drives the linkage gear to rotate, which in turn drives the bidirectional lead screw to rotate. This design does not require additional control devices or manual operation, simplifies the operation process and improves the degree of automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2It is a structural cross-sectional view of the feeding box of the present invention;

[0028] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure shown;

[0029] Figure 4 For the present invention Figure 2 The enlarged structure of B is shown;

[0030] Figure 5 It is a structural schematic diagram of the eccentric wheel of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the sealing plate of the present invention;

[0032] Figure 7 Schematic diagram of the structure of the second return spring of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the propulsion structure of the present invention.

[0034] In the figure, 1. crusher; 2. hopper; 3. crushing structure; 4. feed box; 5. feed port; 6. filter plate; 7. hydraulic telescopic rod; 8. feed plate; 81. baffle; 9. sealing plate; 10. connecting plate; 11. first return spring; 12. first guide rod; 13. connecting shaft; 14. eccentric wheel; 15. transmission gear; 16. first rack; 17. first magnetic block; 18. second magnetic block; 19. receiving groove; 20. first slide; 21. second guide rod; 22. second return spring; 23. extension groove; 24. sealing gasket; 25. second slide; 26. extrusion plate; 27. pushing structure; 2701. support seat; 2702. bidirectional screw; 2703. fixing plate; 2704. slider; 2705. pushing arm; 2706. linkage gear; 28. second rack; 29. ​​baffle. DETAILED DESCRIPTION

[0035] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0036] like Figure 1 - Figure 4As shown, the medicinal material crushing device provided in this embodiment includes a hopper 2, a crushing structure 3, and a filter plate 6 mounted on a crusher 1. A feed box 4 is fixed to one side of the crusher 1, and a feed port 5 is provided between the crusher 1 and the feed box 4. A feeding mechanism is provided inside the feed box 4. The feed box 4 is hollow inside, and a removable maintenance cover is installed on its outer surface. The feeding mechanism includes a hydraulic telescopic rod 7 and a feed plate 8 mounted inside the feed box 4, and an elastic structure mounted between the hydraulic telescopic rod 7 and the feed plate 8. The elastic structure includes a connecting plate 10 fixed to the output end of the hydraulic telescopic rod 7, a first return spring 11 fixed to the lower surface of the feed plate 8, and a first guide rod 12. The bottom end of the first return spring 11 is fixed to the upper surface of the connecting plate 10, and the first guide rod 12 extends through the interior of the connecting plate 10. The first return spring 11 surrounds the outside of the first guide rod 12. The output distance of the hydraulic telescopic rod 7 is adapted to the height of the top feed port 5. There are two elastic structures, and the two elastic structures are symmetrically arranged.

[0037] Specifically, there are two feed openings 5, and the two feed openings 5 ​​are distributed up and down. When the feed plate 8 is not raised or lowered, it is adapted to the bottom feed opening 5. Two baffles 29 are installed on the upper surface of the feed plate 8, which are symmetrically distributed and arranged in an eight-shaped shape. A swinging member is installed on one side of the feed plate 8; the swinging member includes a connecting shaft 13 that rotates on the left side of the feed plate 8 and passes through the inside of the second slide 25, an eccentric wheel 14 fixed to the outer surface of the connecting shaft 13, and a transmission gear 15. A first rack 16 that meshes with the transmission gear 15 is fixed on the side of the feed box 4 away from the crusher 1. The outer shape of the feed plate 8 is set in an inclined shape, and the side of the feed plate 8 away from the feed opening 5 is at a high point. The two feed openings 5 ​​are adapted to the size of the feed plate 8. Since the feed plate 8 is set in an inclined shape, and the two sets of baffles 29 are used to limit the material, the material approaches the feed opening 5, and thus enters the crusher 1 for secondary crushing. This design enables the material to be limited and guided by the baffle 29 during the feeding process, thereby more smoothly approaching the feed port 5. This optimized feeding process helps to reduce the accumulation and retention of materials in the feeding box 4 and improve feeding efficiency.

[0038] When this embodiment is in use, the hydraulic telescopic rod 7 drives the feeding plate 8 to move upward, and the sealing plate 9 is driven to move upward by the first magnetic block 17 and the second magnetic block 18 with the same pole, so as to block the bottom material port 5. When the feeding plate 8 is in the process of rising, when it reaches the top material port 5, the transmission gear 15 will engage with the first rack 16 and drive the eccentric wheel 14 to rotate through the connecting shaft 13. The rotation of the eccentric wheel 14 cooperates with the installation of the first return spring 11 and the first guide rod 12 to drive the feeding plate 8 to shake. The two sets of baffles 29 are used to limit the material, so that the material approaches the material port 5, thereby entering the crusher 1 for secondary crushing.

[0039] In order to better transport materials, Figure 2 - Figure 4 、 Figure 6 and Figure 7 As shown in the figure, a shielding structure used in conjunction with the feeding mechanism is provided inside the material port 5; the shielding structure includes a sealing plate 9 that is slidably provided inside the material port 5, a second magnetic block 18 is fixed to the outer surface of the sealing plate 9, and a first magnetic block 17 that repels the second magnetic block 18 with the same polarity is fixed to the lower surface of the feeding plate 8; due to the principle of repulsion between the same polarity of the first magnetic block 17 and the second magnetic block 18, when the feeding plate 8 approaches the material port 5, the magnetic repulsion force will push the sealing plate 9 to slide upward and open the material port 5, thereby realizing automatic feeding. This design does not require additional mechanical structures or manual operations, simplifies the feeding process and improves efficiency. Figure 3 and Figure 4 As shown, a receiving groove 19 connected to the bottom material port 5 is provided inside the feeding box 4, and a first sliding opening 20 and a second sliding opening 25 are provided inside the feeding box 4, wherein the first sliding opening 20 and the second sliding opening 25 are located on the left and right sides of the feeding box 4, and the first sliding opening 20 is connected to the receiving groove 19.

[0040] It's worth noting that the timely opening and closing of the sealing plate 9, along with the tilted arrangement of the feed plate 8 and the coordinated use of the blocking bar 29, collectively reduce the risk of material accumulation and blockage at the feed inlet 5. This helps maintain a smooth and continuous feeding process, improving the operating efficiency of the crusher 1. The shielding structure within the feed inlet 5 significantly enhances the overall performance and operating efficiency of the medicinal material crushing device by improving sealing performance, automating feeding control, enhancing feeding stability and accuracy, and reducing material blockage.

[0041] Specifically, such as Figure 4 、 Figure 6 and Figure 7 As shown, the sealing plate 9 is slidably arranged in the receiving groove 19, and a sealing gasket 24 is fixed to the top of the sealing plate 9. The sliding arrangement of the sealing plate 9 in the material port 5 and the sealing gasket 24 fixed thereon together ensure the sealing of the material port 5 during the feeding process. This can effectively prevent the material from leaking out of the material port 5 during the feeding process, maintaining the cleanliness of the interior of the crusher 1 and the integrity of the material. A second guide rod 21 and a second return spring 22 are fixed to the inner bottom wall of the receiving groove 19, and the top side of the second return spring 22 is fixed to the lower surface of the sealing plate 9. An extension groove 23 is provided on the bottom side of the sealing plate 9, and the top end of the second guide rod 21 extends into the extension groove 23. The sliding arrangement of the sealing plate 9 and the cooperation of the second guide rod 21 and the second return spring 22 enable the sealing plate 9 to remain stable and accurate when opening and closing the material port 5.

[0042] In order to improve the material crushing efficiency, Figure 1 and Figure 7As shown, an extrusion mechanism is provided on the top side of the feed box 4, and a second rack 28 for driving the extrusion mechanism is installed on the side wall of the feed plate 8. A baffle 81 is fixed to the side of the feed plate 8 away from the material port 5 to block the second slide 25, and a connecting rod extending to the outside of the second slide 25 and fixed to the bottom side of the second rack 28 is bolted to the outer surface of the baffle 81. The baffle 81 is arranged perpendicular to the feed plate 8 and can block the material, thereby preventing the material from leaking from the second slide 25. The extrusion mechanism includes a pushing structure 27 and an extrusion plate 26. The extrusion plate 26 is located above the feed plate 8, and the shape of the extrusion plate 26 is adapted to the feed plate 8. Specifically, the pushing structure 27 comprises two symmetrically arranged support blocks 2701, a bidirectional lead screw 2702 with bearings mounted between the two support blocks 2701, and two symmetrically arranged sliders 2704 threaded onto the outer surfaces of the bidirectional lead screws 2702. A fixed plate 2703 is fixed to the upper surface of the extrusion plate 26, and a pushing arm 2705 is hingedly connected between the two sliders 2704 and the fixed plate 2703. The design of the pushing structure 27 and the extrusion plate 26 enables pre-compression of the material during the feeding process. This pre-compression helps the material accumulate more densely on the feed plate 8, resulting in more efficient crushing upon entry into the crusher 1. Pre-compression also reduces material bouncing and splashing during the crushing process, further improving crushing efficiency. The extrusion plate 26 is smaller than the fixed plate 2703, allowing for easier lifting and extension of the baffle 81. A gap is left between the fixed plate 2703 and the feed box 4 for the baffle 81, and the raising and lowering of the baffle 81 does not affect the downward movement of the extrusion plate 26.

[0043] Furthermore, the meshing design of the extrusion mechanism's linkage gear 2706 and second rack 28 enables automated, coordinated control of the feed plate 8 and the extrusion mechanism. As the feed plate 8 rises, the second rack 28 moves accordingly, driving the linkage gear 2706 to rotate, which in turn drives the bidirectional lead screw 2702. This design eliminates the need for additional control devices or manual operation, simplifying the operation process and increasing the equipment's level of automation.

[0044] A linkage gear 2706, meshing with the second rack 28, is fixed to the left end of the bidirectional lead screw 2702. A limit rod, extending through the interior of the two sliders 2704, is fixed between the two support blocks 2701. The design of the extrusion mechanism offers a degree of adaptability, allowing adjustments based on the type, size, and crushing requirements of the material. For example, the rotational speed of the bidirectional lead screw 2702 can be adjusted to control the descent speed and pressure of the extrusion plate 26, thereby meeting the crushing requirements of different materials. The position of the second rack 28 is adapted to the lifting height of the feed plate 8, enabling the lifting and lowering of the feed plate 8 to be effectively coordinated with the propulsion mechanism 27.

[0045] In summary, the crushing device can further refine the material through secondary crushing, making its particle size more uniform, thereby improving the crushing efficiency. After the initial crushing, the material may still contain some larger particles or lumps. These particles or lumps can be further crushed through secondary crushing to achieve finer particle size requirements. Secondary crushing helps to improve the physical and chemical properties of the material. For medicinal materials, the surface area of ​​the crushed material increases, which is conducive to the extraction and separation of effective ingredients and improves the utilization rate of the medicinal materials. At the same time, secondary crushing can also destroy the cell structure in the medicinal materials and release more active ingredients. The secondary crushing capacity enables the crusher 1 to handle more types of materials. Moreover, in the processing of medicinal materials, crushing is one of the key process steps. Secondary crushing can ensure that the material meets the required particle size requirements, thereby improving the quality and stability of the product. This is crucial for the subsequent processing and extraction process of medicinal materials, and it is preferred to improve product quality.

[0046] like Figure 1 - Figure 8 As shown, the principle of the medicinal material crushing device provided in this embodiment is as follows:

[0047] During use, the hydraulic telescopic rod 7 first drives the feeding plate 8 to move upward, and the sealing plate 9 is driven to move upward by the first magnetic block 17 and the second magnetic block 18 with the same pole, so as to block the bottom material opening 5. When the feeding plate 8 is in the process of rising, when it reaches the top material opening 5, the transmission gear 15 will mesh with the first rack 16 and drive the eccentric wheel 14 to rotate through the connecting shaft 13. The rotation of the eccentric wheel 14 cooperates with the installation of the first return spring 11 and the first guide rod 12 to drive the feeding plate 8 to shake. Since the feeding plate 8 is arranged in an inclined shape, the two sets of baffles 29 are used to limit the material, so that the material is close to the material opening 5, thereby entering the crusher 1 for secondary crushing.

[0048] When the feeding plate 8 moves upward, the bidirectional screw 2702 is driven to rotate by the engagement of the second rack 28 and the linkage gear 2706. Since the threads on the bidirectional screw 2702 are arranged in opposite directions, the two sliders 2704 move relative to each other. The relative movement of the two sliders 2704 drives the extrusion plate 26 to move downward through the push arm 2705, so that it is close to the feeding plate 8, thereby squeezing the medicinal materials, allowing the medicinal materials to better enter the crusher 1 for crushing, thereby improving the crushing efficiency of the medicinal materials.

[0049] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0050] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0051] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A medicinal material crushing device, comprising a hopper (2), a crushing structure (3) and a filter plate (6) mounted on a crusher (1), characterized in that: A feeding box (4) is fixed to one side of the crusher (1), a feeding port (5) is provided between the crusher (1) and the feeding box (4), a feeding mechanism is provided inside the feeding box (4), and a shielding structure used in conjunction with the feeding mechanism is provided inside the feeding port (5); The feeding mechanism comprises a hydraulic telescopic rod (7) and a feeding plate (8) installed inside the feeding box (4), and an elastic structure installed between the hydraulic telescopic rod (7) and the feeding plate (8), and a swinging member is installed on one side of the feeding plate (8); The shielding structure comprises a sealing plate (9) slidably arranged in the material port (5), a second magnetic block (18) being fixed to the outer surface of the sealing plate (9), and a first magnetic block (17) having the same polarity as the second magnetic block (18) being fixed to the lower surface of the feeding plate (8); The top side of the feeding box (4) is provided with an extrusion mechanism, and the side wall of the feeding plate (8) is provided with a second rack (28) for driving the extrusion mechanism; There are two material ports (5), and the two material ports (5) are distributed up and down. When the feeding plate (8) is not raised or lowered, it is matched with the bottom material port (5). Two baffles (29) are symmetrically distributed and arranged in an eight-shaped shape on the upper surface of the feeding plate (8). The two material ports (5) are matched with the size of the feeding plate (8). Since the feeding plate (8) is arranged in an inclined shape, the two sets of baffles (29) are used to limit the material so that the material approaches the material port (5) and enters the crusher (1) for secondary crushing. This design allows the material to be limited and guided by the baffles (29) during the feeding process, so that it approaches the material port (5) more smoothly. This optimized feeding process helps to reduce the accumulation and retention of materials in the feeding box (4) and improve the feeding efficiency. The feed box (4) is provided with a first sliding opening (20) and a second sliding opening (25); the elastic structure comprises a connecting plate (10) fixed to the output end of the hydraulic telescopic rod (7), a first return spring (11) fixed to the lower surface of the feed plate (8), and a first guide rod (12), wherein the bottom end of the first return spring (11) is fixed to the upper surface of the connecting plate (10), and the first guide rod (12) passes through the interior of the connecting plate (10); The swing member includes a connecting shaft (13) that rotates on the left side of the feeding plate (8) and passes through the interior of the second sliding opening (25), an eccentric wheel (14) fixed to the outer surface of the connecting shaft (13), and a transmission gear (15); A first rack (16) meshing with a transmission gear (15) is fixed to a side of the feed box (4) away from the crusher (1); a sealing plate (9) is slidably arranged in the receiving groove (19), and a sealing gasket (24) is fixed to the top of the sealing plate (9); a second guide rod (21) and a second return spring (22) are fixed to the inner bottom wall of the receiving groove (19); the top side of the second return spring (22) is fixed to the lower surface of the sealing plate (9); The extrusion mechanism comprises a pushing structure (27) and an extrusion plate (26); the extrusion plate (26) is located above the feeding plate (8), and the shape of the extrusion plate (26) is adapted to the feeding plate (8).

2. The medicinal material crushing device according to claim 1, characterized in that: The feeding box (4) is provided with a receiving groove (19) in communication with the bottom material opening (5), the first sliding opening (20) and the second sliding opening (25) are located on the left and right sides of the feeding box (4), and the first sliding opening (20) is in communication with the receiving groove (19).

3. The medicinal material crushing device according to claim 1, characterized in that: An extension groove (23) is provided on the bottom side of the sealing plate (9), and the top end of the second guide rod (21) extends into the extension groove (23).

4. The medicinal material crushing device according to claim 1, characterized in that: A baffle (81) for shielding the second sliding opening (25) is fixed on the side of the feeding plate (8) away from the material opening (5), and a connecting rod extending to the outside of the second sliding opening (25) and fixed to the bottom side of the second rack (28) is bolted to the outer surface of the baffle (81).

5. The medicinal material crushing device according to claim 1, characterized in that: The pushing structure (27) comprises two symmetrically distributed support seats (2701), a bidirectional lead screw (2702) with bearings installed between the two support seats (2701), and two sliders (2704) threadedly connected to the outer surface of the bidirectional lead screw (2702) and symmetrically arranged. A fixed plate (2703) is fixed to the upper surface of the extrusion plate (26), and a pushing arm (2705) is hinged between the two sliders (2704) and the fixed plate (2703).

6. The medicinal material crushing device according to claim 5, characterized in that: A linkage gear (2706) meshing with the second rack (28) is fixed to the left end of the bidirectional lead screw (2702), and a limiting rod penetrating the interior of the two sliders (2704) is fixed between the two support seats (2701).

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