Leaf chopper

By designing a linkage shaft and a speed-changing shaft, and combining the rotation of the brushing and cutting components, the problem of feed blockage in leaf chopping equipment is solved, achieving efficient and uniform leaf chopping and improving the stability and quality of pharmaceutical processes.

CN224114117UActive Publication Date: 2026-04-14ZHONGSHAN LIPAI MASCH EQUIP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional simple leaf chopping equipment is prone to clogging during feeding, resulting in poor chopping effect and affecting the stability and quality of subsequent pharmaceutical processes.

Method used

The brush and cutter are driven by a linkage shaft, and combined with the planetary gear structure of the variable speed shaft, the brush can continuously brush and the cutter can efficiently cut, ensuring uniform material feeding and accelerating the cutting effect.

Benefits of technology

This technology enables efficient and uniform chopping of leaves, prevents feed blockage, and improves the stability and quality of pharmaceutical processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a leaf chopper which comprises a material containing barrel, a feeding mechanism and a material cutting mechanism, an inner cavity used for containing materials and a linkage shaft rotationally arranged in the inner cavity are arranged in the material containing barrel, and the feeding mechanism comprises a material brushing piece rotationally arranged around the linkage shaft in the axial direction and a feeding part arranged at the bottom of the inner cavity. The material cutting mechanism comprises a material cutting piece arranged in the axial direction of the linkage shaft in a rotating mode, rotation of the linkage shaft can drive the material brushing piece and the material cutting piece to rotate at the same time, the material brushing piece is located on the upper side of the feeding part, and the material cutting piece is located on the lower side of the feeding part. According to the leaf chopping machine, the linkage shaft is arranged in the material containing barrel, the material brushing piece and the material cutting piece are driven to rotate at the same time, the effect of preventing feeding blockage of materials is achieved through continuous brushing of the material brushing piece, uniform feeding of the material containing barrel at the feeding part is guaranteed, and continuous cutting of the material cutting piece is matched, so that the leaf chopping efficiency is improved. And the efficient and continuous chopping effect on the materials is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a leaf shredder. Background Technology

[0002] In the pharmaceutical processing industry, tree leaves, as a common natural medicinal material, are widely used in various traditional Chinese medicine preparations and health products. A crucial pretreatment step in leaf processing is chopping the leaves to ensure more efficient subsequent extraction, drying, and mixing processes. However, traditional, simple leaf chopping equipment only has cutting blades and lacks a structure to maintain a uniform feeding speed, resulting in poor feeding efficiency and even the risk of blockages. This leads to ineffective chopping, affecting the stability of subsequent pharmaceutical processes and the quality of the finished product. Therefore, there is an urgent need for a convenient and efficient leaf chopper that, with a compact design, can achieve efficient and uniform chopping of leaves. Utility Model Content

[0003] The purpose of this invention is to provide a leaf shredder that solves the problem of poor shredding effect of traditional simple leaf shredding equipment.

[0004] The present invention provides the following technical solution: a leaf shredder, comprising a material storage bin, a feeding mechanism, and a cutting mechanism. The material storage bin has an inner cavity for placing materials and a linkage shaft rotatably disposed in the inner cavity. The feeding mechanism includes a brush component rotatably disposed around the linkage shaft and a feeding section opened at the bottom of the inner cavity. The cutting mechanism includes a cutting component rotatably disposed around the linkage shaft. The rotation of the linkage shaft can simultaneously drive the rotation of the brush component and the cutting component. The brush component is located on the upper side of the feeding section and is used to brush the materials to continuously input them into the feeding section. The cutting component is located on the lower side of the feeding section and is used to continuously cut the materials output from the feeding section.

[0005] As described above, the feeding mechanism of the leaf shredder further includes a turntable, with multiple extension arms extending around the turntable. Multiple brushing components are fixed to the extension arms along their length. A linkage shaft is connected and fixed to the turntable, so that the rotation of the linkage shaft drives the rotation of the turntable, thereby causing the multiple extension arms to drive the multiple brushing components to sweep the bottom of the inner cavity.

[0006] As described above, in a leaf shredder, the brush component is provided with multiple flexible brushes arranged along the length of the extension arm.

[0007] In the leaf shredder described above, the feed section is a dense mesh formed at the bottom of the inner cavity.

[0008] As described above, in a leaf shredder, the cutting mechanism further includes a speed-changing shaft. The speed-changing shaft contains a sun gear, a planetary carrier, and multiple planetary gears meshing around the sun gear. The multiple planetary gears are rotatably connected to the planetary carrier. The linkage shaft is connected to the input end of the speed-changing shaft, and the cutting mechanism is connected to the output end of the speed-changing shaft. The rotation of the input end of the speed-changing shaft can drive the rotation of the planetary carrier, so that the speed of the cutting mechanism connected to the output end of the speed-changing shaft is higher than the speed of the linkage shaft.

[0009] As described above, in a leaf shredder, the cutting element is a strip-shaped blade extending radially along the feeding hopper. The middle part of the cutting element is connected to the output end of the speed-changing shaft, so that when the output end of the speed-changing shaft rotates, the cutting range of the cutting element covers the lower side of the feeding section.

[0010] As described above, in a leaf shredder, a screening port is provided on the side of the feeding hopper, which is used to connect the inner cavity with the outside.

[0011] As described above, in a leaf shredder, the linkage shaft and the feeding hopper are coaxially arranged, and the upper side of the feeding hopper is provided with feeding ports located on both sides of the linkage shaft.

[0012] In the leaf shredder described above, a drive crank is connected to the end of the linkage shaft away from the cutting component.

[0013] As described above, the leaf shredder has a foldable support frame on the feeding hopper.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The leaf shredder of this utility model adopts a linkage shaft in the feeding hopper, which drives the rotation of the brush and the cutting parts. Through the continuous brushing of the brush, the material is prevented from being blocked during feeding, ensuring uniform feeding of the feeding hopper. Combined with the continuous cutting of the cutting parts, the material is efficiently and continuously shredded.

[0016] 2. The leaf shredder of this utility model adds a speed-changing shaft to the cutting mechanism. The speed-changing shaft adopts the speed-changing principle of planetary gear structure, so that when the linkage shaft drives the cutting part to rotate, the speed of the cutting part can be accelerated through the speed-changing shaft. Under the premise of maintaining a uniform feeding speed in the feeding part, the cutting mechanism has a better shredding effect. Attached Figure Description

[0017] Figure 1 This is a cross-sectional perspective view of the leaf shredder of this utility model.

[0018] Figure 2 This is a schematic diagram showing the connection relationship between the linkage shaft, the feeding mechanism, and the cutting mechanism in the leaf shredder of this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the speed change shaft in the leaf shredder of this utility model.

[0020] Figure 4 This is a three-dimensional schematic diagram of the leaf shredder of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Material storage bin; 2. Feeding mechanism; 3. Cutting mechanism; 11. Inner cavity; 12. Linkage shaft; 13. Screening port; 14. Feeding port; 15. Drive handle; 16. Support frame; 21. Brush component; 22. Feeding section; 23. Turntable; 31. Cutting component; 32. Speed ​​change shaft; 211. Flexible brush; 231. Extension arm; 321. Sun gear; 322. Planetary carrier; 323. Planetary gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to the appendix Figure 1 To be continued Figure 4This embodiment provides a leaf shredder, including a material storage bin 1, a feeding mechanism 2, and a cutting mechanism 3. The material storage bin 1 has an inner cavity 11 for placing materials and a linkage shaft 12 rotatably disposed in the inner cavity 11. The feeding mechanism 2 includes a brush 21 rotatably disposed around the linkage shaft 12 and a feeding section 22 opened at the bottom of the inner cavity 11. The cutting mechanism 3 includes a cutting section 31 rotatably disposed around the linkage shaft 12. The rotation of the linkage shaft 12 can simultaneously drive the rotation of the brush 21 and the cutting section 31. The brush 21 is located on the upper side of the feeding section 22 and is used to brush the materials so that they are continuously input into the feeding section 22. The cutting section 31 is located on the lower side of the feeding section 22 and is used to continuously cut the materials output from the feeding section 22. In this embodiment of the leaf shredder, a linkage shaft 12 is used in the feeding hopper 1 to drive the rotation of the brushing component 21 and the cutting component 31. Through the continuous brushing of the brushing component 21, the material feeding blockage is prevented, ensuring uniform feeding of the feeding hopper 1 into the feeding section 22. Combined with the continuous cutting of the cutting component 31, the material is efficiently and continuously shredded.

[0024] The feeding mechanism 2 also includes a turntable 23, with multiple extension arms 231 extending from its periphery. Multiple brush components 21 are fixed to the extension arms 231 along their length. A linkage shaft 12 is connected and fixed to the turntable 23, causing the turntable 23 to rotate as the linkage shaft 12 rotates, thus enabling the multiple extension arms 231 to drive the multiple brush components 21 to sweep the bottom of the inner cavity 11. Preferably, each brush component 21 has multiple flexible brush blades 211 arranged along the length of the extension arms 231. During the sweeping process, the flexible brush blades 211 are bent, and their ends press against and rub against the bottom of the inner cavity 11 to complete the sweeping. This aims to expedite the material into the feeding section more quickly, preventing the material from becoming stuck in the inner cavity 11.

[0025] Preferably, the feed section 22 has a dense mesh at the bottom of the inner cavity 11, which facilitates the feeding of materials.

[0026] The cutting mechanism 3 also includes a speed change shaft 32, which contains a sun gear 321, a planet carrier 322, and multiple planet gears 323 meshing around the sun gear 321. The multiple planet gears 323 are rotatably connected to the planet carrier 322. The linkage shaft 12 is connected to the input end of the speed change shaft 32, and the cutting mechanism 3 is connected to the output end of the speed change shaft 32. The rotation of the input end of the speed change shaft 32 can drive the rotation of the planet carrier 322, so that the speed of the cutting mechanism 3 connected to the output end of the speed change shaft 32 is higher than the speed of the linkage shaft 12. In this embodiment of the leaf shredder, a speed-changing shaft 32 is added to the cutting mechanism 3. The speed-changing shaft 32 adopts the speed-changing principle of planetary gear structure, that is, based on the principle that when the planetary carrier 322 is the driving member, the driven member will operate at an overspeed. When the linkage shaft 12 drives the cutting member 31 to rotate, the speed of the cutting member 31 can be accelerated through the speed-changing shaft 32. Under the premise that the feeding part 22 maintains a uniform feeding speed, the cutting mechanism has a better shredding effect.

[0027] The cutting element 31 is a strip-shaped blade that extends radially along the material storage hopper 1. The middle part of the cutting element 31 is connected to the output end of the speed change shaft 32. When the output end of the speed change shaft 32 rotates, the cutting range of the cutting element 31 covers the lower side of the feeding part 22, so that the material falling from any position of the feeding part 22 can be cut by the cutting element 31.

[0028] A sieve opening 13 is provided on the side of the material storage hopper 1. The sieve opening 13 is used to connect the inner cavity 11 with the outside. When the material put into the material storage hopper 1 is mixed with leaves and fruits, the fruits will not pass through the feeding part, but will remain in the inner cavity 11. The sieve opening 13 is equipped with a corresponding cover. When the leaves are chopped, the cover of the sieve opening 13 can be opened to pour the fruits out of the material storage hopper 1, thus realizing the function of sieving.

[0029] The linkage shaft 12 and the material container 1 are coaxially arranged. The upper side of the material container 1 is provided with feeding ports 14 located on both sides of the linkage shaft 12. The feeding ports 14 are arranged in pairs, which makes it easier to feed leaf materials.

[0030] A drive handle 15 is connected to the end of the linkage shaft 12 away from the cutting part 31. The drive handle 15 can be set to use manual chopping, or the drive handle 15 can be omitted. The linkage shaft 12 can be connected to the corresponding electric drive structure as needed.

[0031] The material storage hopper 1 is equipped with a foldable support frame 16. When the support frame 16 is unfolded, it can support the material storage hopper 1, so that there is a distance between the feeding part and the support surface of the equipment. A receiving basin or a receiving bag can be hung in this space to receive the chopped material.

[0032] 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 leaf shredder, characterized in that: The device includes a material storage bin (1), a feeding mechanism (2), and a cutting mechanism (3). The material storage bin (1) has an inner cavity (11) for placing materials and a linkage shaft (12) rotatably disposed in the inner cavity (11). The feeding mechanism (2) includes a brush (21) rotatably disposed around the linkage shaft (12) and a feeding section (22) opened at the bottom of the inner cavity (11). The cutting mechanism (3) includes a cutting component (31) rotatably disposed around the linkage shaft (12). The rotation of the linkage shaft (12) can simultaneously drive the rotation of the brush (21) and the cutting component (31). The brush (21) is located on the upper side of the feeding section (22) and is used to brush the material so that it is continuously input into the feeding section (22). The cutting component (31) is located on the lower side of the feeding section (22) and is used to continuously cut the material output from the feeding section (22).

2. The leaf shredder according to claim 1, characterized in that: The feeding mechanism (2) also includes a turntable (23), on which multiple extension arms (231) extend around the circumference of the turntable (23). Multiple brushing components (21) are fixed on the extension arms (231) along the length direction of the extension arms (231). The linkage shaft (12) is connected and fixed to the turntable (23), so that the rotation of the linkage shaft (12) drives the rotation of the turntable (23), so that the multiple extension arms (231) drive the multiple brushing components (21) to sweep the bottom of the inner cavity (11).

3. A leaf shredder according to claim 2, characterized in that: The brush component (21) is provided with multiple flexible brush blades (211) arranged along the length direction of the extension arm (231).

4. A leaf shredder according to claim 2, characterized in that: The feed section (22) is a dense mesh formed at the bottom of the inner cavity (11).

5. A leaf shredder according to claim 2, characterized in that: The cutting mechanism (3) further includes a speed change shaft (32), which contains a sun gear (321), a planet carrier (322), and a plurality of planet gears (323) meshing around the sun gear (321). The plurality of planet gears (323) are rotatably connected to the planet carrier (322). The linkage shaft (12) is connected to the input end of the speed change shaft (32), and the cutting mechanism (3) is connected to the output end of the speed change shaft (32). The rotation of the input end of the speed change shaft (32) can drive the rotation of the planet carrier (322), so that the speed of the cutting mechanism (3) connected to the output end of the speed change shaft (32) is higher than the speed of the linkage shaft (12).

6. A leaf shredder according to claim 5, characterized in that: The cutting element (31) is a strip-shaped blade that extends radially along the material storage hopper (1). The middle part of the cutting element (31) is connected to the output end of the speed change shaft (32) so that when the output end of the speed change shaft (32) rotates, the cutting range of the cutting element (31) covers the lower side of the feeding part (22).

7. A leaf shredder according to claim 1, characterized in that: The material storage bucket (1) has a sieve opening (13) on its side, which is used to connect the inner cavity (11) with the outside.

8. A leaf shredder according to claim 1, characterized in that: The linkage shaft (12) and the material container (1) are coaxially arranged, and the upper side of the material container (1) is provided with feeding ports (14) located on both sides of the linkage shaft (12).

9. A leaf shredder according to claim 1, characterized in that: A drive crank (15) is connected to one end of the linkage shaft (12) away from the cutting component (31).

10. A leaf shredder according to claim 1, characterized in that: The material storage bin (1) is provided with a foldable support frame (16).