Multi-specification traditional chinese medicine decoction pieces production slicing machine

By introducing a vibration cutting and cleaning device into the slicer, the problems of low efficiency and adhesion in cutting tough Chinese herbal medicines were solved, and efficient and stable production of multi-specification Chinese herbal medicine slices was achieved.

CN224575745UActive Publication Date: 2026-07-31ANHUI YIJIANTANG CHINESE MEDICINE PIECES TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI YIJIANTANG CHINESE MEDICINE PIECES TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing slicers are inefficient and have limited cutting strength when cutting tough Chinese medicinal herbs. Furthermore, mucilaginous Chinese medicinal herbs tend to stick together during the cutting process, affecting the continuity and quality of the slices.

Method used

The first motor drives the cam system to make the vibratory cutting frame reciprocate up and down on the blade holder. Combined with the excitation motor and heating wire, the blade plate is vibrated to cut. The rotation of the indexing frame and the cleaning cotton block are used to clean the residue, which can meet the needs of Chinese medicine slices of different textures and shapes.

Benefits of technology

It improves cutting efficiency, reduces cutting time and force, lowers the residue rate of Chinese medicine on the cutting board, and enhances the quality and continuity of slices, making it suitable for large-scale, multi-specification production of Chinese medicinal herbs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of slicing machine technology and discloses a slicing machine for producing multi-specification Chinese herbal medicine slices. It includes a blade holder and a first motor. The output shaft of the first motor is connected to a first elastic tension belt. A cam system is mounted on the blade holder, and a vibrating cutting frame that can reciprocate up and down on the blade holder is driven by the cam system. A rotating shaft is rotatably mounted on the vibrating cutting frame, and a drive gear ring is mounted on the rotating shaft. Both the cam system and the rotating shaft are driven by the first elastic tension belt. A rotating indexing frame is rotatably mounted on the rotating shaft, and two blades are slidably mounted on the indexing frame. A reciprocating drive assembly driven by the drive gear ring is mounted on the indexing frame. This utility model uses the first motor to drive the cam system, causing the vibrating cutting frame to reciprocate up and down on the blade holder. The vibration of the vibrating cutting frame drives the blades to produce a vibratory cutting effect, effectively and powerfully slicing Chinese herbal medicines of different textures, shapes, and sizes.
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Description

Technical Field

[0001] This utility model relates to the field of slicing machine technology, and more specifically, to a slicing machine for producing multi-specification Chinese herbal medicine slices. Background Technology

[0002] The slicing process of traditional Chinese medicine (TCM) decoction pieces involves using a slicer to cut the pieces into specific sizes, facilitating the extraction of the active ingredients. Existing technology includes a TCM decoction piece slicer disclosed in patent document CN220762723U, comprising a base, support, cutting blades, a collection box, and a speed-regulating motor positioned above the cutting blades. The speed-regulating motor drives the cutting blades to rotate, thereby changing the slicing angle. However, the aforementioned slicer has the following technical problems in use:

[0003] Existing slicing machines have relatively simple cutting actions and lack flexibility. For tough Chinese medicinal herbs, the cutting time and force required are large, resulting in low work efficiency and limited cutting strength. Some Chinese medicinal herbs contain a large amount of mucilage, sugars and other sticky components, which easily stick to the blade during the cutting process, affecting the continuity and quality of the slices. Based on this, this utility model provides a slicing machine for producing Chinese medicinal herbs of various specifications to solve the technical problems mentioned in the background art. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a slicing machine for producing Chinese herbal medicine slices of various specifications. This utility model uses a first motor to drive a cam system, which causes the vibrating cutter to vibrate up and down on the blade holder. The vibration of the vibrating cutter causes the blade to produce a vibrating cutting effect, which can effectively and powerfully slice Chinese herbal medicines of different textures, shapes and sizes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slicing machine for producing multi-specification Chinese herbal medicine slices, including a blade holder and a first motor. The output shaft of the first motor is connected to a first elastic tension belt. A cam system is installed on the blade holder. A vibrating cutting frame that can reciprocate up and down on the blade holder is installed on the cam system. A rotating shaft is rotatably installed on the vibrating cutting frame. An active gear ring is installed on the rotating shaft. Both the cam system and the rotating shaft are driven by the first elastic tension belt. A rotary frame is rotatably installed on the rotating shaft. Two blades are slidably installed on the rotary frame. A reciprocating drive assembly driven by the active gear ring is installed on the rotary frame. The blades are driven by the reciprocating drive assembly and reciprocate in a direction perpendicular to the rotating shaft. Both blades have built-in excitation motors and heating wires. A cleaning cotton block for cleaning the blades is installed on the blade holder.

[0006] As a preferred technical solution of this utility model, it also includes a base frame, a set of reciprocating push rods are installed between the base frame and the tool holder, and a microcontroller is installed on the base frame.

[0007] As a preferred technical solution of this utility model, the cam system includes a camshaft rotatably connected to the tool holder, the camshaft being drivenly connected to a first elastic tension belt, a guide cam being mounted on the camshaft, a driven wheel that fits against the guide cam being rotatably mounted on the vibrating cutter frame, the vibrating cutter frame being slidably connected to the tool holder, and a set of return springs that are limited by the tool holder being mounted on the bottom surface of the vibrating cutter frame.

[0008] As a preferred technical solution of this utility model, it also includes a second motor mounted on the tool holder, the output shaft end of the second motor being drivenly connected to a second elastic tension belt, and the second elastic tension belt being drivenly connected to the indexing frame.

[0009] As a preferred embodiment of this utility model, both the first elastic tension band and the second elastic tension band are made of rubber, and both the first elastic tension band and the second elastic tension band can be elastically displaced.

[0010] As a preferred technical solution of this utility model, the reciprocating drive assembly includes two toothed shafts rotatably connected to the indexing frame. Each of the two toothed shafts is equipped with a half-tooth gear and a driven gear. Both driven gears are connected to the driving gear ring. Each of the two cutter plates is equipped with a return spring that is limited by the indexing frame, and each of the two cutter plates is equipped with a toothed plate. The two toothed plates are respectively connected to the two half-tooth gears.

[0011] As a preferred technical solution of this utility model, it also includes two transmission modules, each of which is equipped with an annular feeding belt, and a feeding gap is fixedly provided between the two annular feeding belts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a first motor to drive a cam system, causing the vibrating cutter to reciprocate up and down on the blade holder. The vibration of the vibrating cutter causes the blade to produce a vibrating cutting effect, which can effectively and powerfully slice Chinese medicines of different textures, shapes and sizes. For Chinese medicines with strong toughness, vibrating cutting can reduce the time and force required for cutting and improve work efficiency. For the production of Chinese medicine slices of different specifications, this vibrating cutting method can better adapt to the needs, improve the slice quality, and solve the problems of limited cutting strength, single cutting action and poor flexibility in the existing technology.

[0014] 2. The blade of this utility model can not only vibrate up and down, but also move back and forth along the axis of rotation, realizing bidirectional vibration, which further improves the slicing efficiency. It achieves a strong reciprocating slicing effect when slicing Chinese medicine and reduces the residual rate of Chinese medicine on the blade during slicing. This design can better adapt to the needs of large-scale production. Compared with the traditional single cutting action, it greatly improves the slicing efficiency and meets the requirements of large-scale production of Chinese medicine decoction pieces of various specifications.

[0015] 3. This utility model incorporates a built-in vibrating motor and heating wire in the blade. The vibration generated by the vibrator allows the blade to penetrate the Chinese medicine more quickly during cutting, reducing the time and force required for cutting. It is especially effective for Chinese medicines with strong toughness. The heating wire can heat the blade, reducing the stickiness of viscous components and decreasing the adhesion between the medicine and the blade. At the same time, as the indexing frame rotates, the cleaning cotton can clean residual water stains and medicine pieces on the blade, improving the service life of the blade. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the multi-specification Chinese herbal medicine slicer for production according to this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the base frame and reciprocating push rod of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the second motor and the first elastic tension belt of this utility model;

[0019] Figure 4 This is a schematic diagram of the blade and vibrating cutter frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the indexing frame and the vibratory cutting frame of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the active gear ring and the driven gear of this utility model.

[0022] In the diagram: 1. Blade holder; 2. First motor; 3. First elastic tension belt; 4. Vibrating cutter frame; 5. Rotary shaft; 6. Drive gear ring; 7. Indexing frame; 8. Blade plate; 9. Excitation motor; 10. Cleaning cotton block; 11. Base frame; 12. Reciprocating push rod; 13. Microcontroller; 14. Camshaft; 15. Guide cam; 16. Driven wheel; 17. Return spring; 18. Second motor; 19. Second elastic tension belt; 20. Slightly toothed shaft; 21. Half-tooth gear; 22. Driven gear; 23. Return spring; 24. Gear plate; 25. Transmission module; 26. Circular clamping belt. Detailed Implementation

[0023] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0024] like Figures 1 to 6 As shown, this utility model provides a slicing machine for producing multi-specification Chinese herbal medicine slices, including a blade holder 1 and a first motor 2;

[0025] It also includes a base frame 11, a set of reciprocating push rods 12 installed between the base frame 11 and the tool holder 1, and a microcontroller 13 installed on the base frame 11;

[0026] The reciprocating push rod 12 is used to perform the reciprocating slicing action of Chinese herbal medicine materials during slicing. The reciprocating frequency and reciprocating stroke of the reciprocating push rod 12 can be customized according to actual needs.

[0027] The output shaft of the first motor 2 is connected to the first elastic tension belt 3. A cam system is installed on the tool holder 1. A vibrating cutting frame 4 that can reciprocate up and down on the tool holder 1 is installed on the cam system. A rotating shaft 5 is rotatably installed on the vibrating cutting frame 4. An active gear ring 6 is installed on the rotating shaft 5. Both the cam system and the rotating shaft 5 are driven by the first elastic tension belt 3.

[0028] The cam system includes a camshaft 14 rotatably connected to the tool holder 1, the camshaft 14 being drivenly connected to the first elastic tension belt 3, a guide cam 15 mounted on the camshaft 14, a driven wheel 16 rotatably mounted on the vibrating cutter 4 and in contact with the guide cam 15, the vibrating cutter 4 being slidably connected to the tool holder 1, and a set of return springs 17 limited by the tool holder 1 being mounted on the bottom surface of the vibrating cutter 4;

[0029] The first elastic transmission belt 3 drives the camshaft 14 and the rotary shaft 5 simultaneously. The camshaft 14 is directly connected by a pulley, and the rotary shaft 5 meshes with the first elastic transmission belt 3 through a synchronous pulley mounted on the same axis.

[0030] In the workflow of the slicer for producing multi-specification Chinese herbal medicine slices, after the first motor 2 starts, its output shaft drives the first elastic tension belt 3 to rotate, which in turn drives the camshaft 14 to rotate. The guide cam 15 on the camshaft 14 rotates accordingly. Since the driven wheel 16 on the vibrating cutter 4 is in contact with the guide cam 15, the rotation of the guide cam 15 will cause the driven wheel 16 to roll on its contour, thereby driving the vibrating cutter 4 to vibrate up and down on the blade holder 1. The return spring 17 on the bottom surface of the vibrating cutter 4 plays a limiting and resetting role, ensuring the stable vibration of the vibrating cutter 4. This design solves the problem of the single cutting action and insufficient flexibility of the existing slicer. Through the up and down reciprocating vibration of the vibrating cutter 4, the blade 8 can produce a vibration cutting effect when cutting Chinese herbal medicine slices. For Chinese herbs of different textures, shapes and sizes, it can slice more effectively and more powerfully, improving the quality and efficiency of slicing. Compared with the existing technology, it can better meet the production needs of multi-specification Chinese herbal medicine slices.

[0031] A rotary shaft 5 is rotatably mounted with a rotary frame 7, and two blades 8 are slidably mounted on the rotary frame 7. A reciprocating drive assembly driven by an active gear ring 6 is mounted on the rotary frame 7. The blades 8 are driven by the reciprocating drive assembly and reciprocate in a direction perpendicular to the rotary shaft 5.

[0032] It also includes a second motor 18 mounted on the tool holder 1, the output shaft of the second motor 18 is connected to a second elastic tension belt 19, and the second elastic tension belt 19 is connected to the indexing frame 7.

[0033] Both the first elastic tension band 3 and the second elastic tension band 19 are made of rubber, and both the first elastic tension band 3 and the second elastic tension band 19 can be elastically displaced.

[0034] The second motor 18 drives the pulley at the bottom of the indexing frame 7 through the second elastic transmission belt 19, causing the indexing frame 7 to rotate around the rotating shaft 5, thereby realizing the switching of the work position of the blade plate 8.

[0035] During the operation of the slicer, the first motor 2 drives the cam system and the rotating shaft 5 through the first elastic tension belt 3, and the second motor 18 drives the indexing frame 7 through the second elastic tension belt 19. Since the first elastic tension belt 3 and the second elastic tension belt 19 are both made of rubber and can be elastically displaced, when the vibrating cutter 41 is displaced, the first elastic tension belt 3 and the second elastic tension belt 19 can automatically adjust their tension to compensate for the displacement change of the vibrating cutter 41.

[0036] Both blades 8 are equipped with a built-in vibration motor 9 and heating wire, and a cleaning cotton block 10 for cleaning the blades 8 is installed on the blade holder 1.

[0037] The reciprocating drive assembly includes two toothed shafts 20 rotatably connected to the indexing frame 7. Each toothed shaft 20 is equipped with a half-tooth gear 21 and a driven gear 22. Both driven gears 22 are driven and connected to the driving gear ring 6. Each of the two cutter plates 8 has a return spring 23 that is limited by the indexing frame 7 on its side, and each of the two cutter plates 8 has a toothed plate 24. The two toothed plates 24 are driven and connected to the two half-tooth gears 21 respectively.

[0038] It also includes two transmission modules 25, each of which is equipped with an annular feeding belt 26, and a feeding gap is fixedly provided between the two annular feeding belts 26.

[0039] When the slicer for producing multi-specification Chinese herbal medicine slices is in operation, the Chinese herbal medicine to be sliced ​​is placed in the feeding gap between two annular conveyor belts 26. The transmission module 25 drives the annular conveyor belts 26 to rotate, thereby stably conveying the Chinese herbal medicine to the underside of the blade plate 8 for slicing. This design solves the problem of unstable feeding and easy deviation of Chinese herbal medicine in the existing technology. Through the clamping action of the annular conveyor belts 26, the positional accuracy and stability of the Chinese herbal medicine during the feeding process can be guaranteed, so that the blade plate 8 can accurately slice the Chinese herbal medicine, improving the consistency and accuracy of slicing.

[0040] Regarding the synchronous up-and-down reciprocating vibration of the blade 8, due to the large differences in the texture of Chinese medicinal herbs, such as the hardness of roots and stems and the softness of flowers and leaves, the up-and-down reciprocating vibration can evenly distribute the cutting force on the Chinese medicinal herbs. For hard Chinese medicinal herbs, it can prevent breakage due to excessive force, and for soft Chinese medicinal herbs, it can prevent them from sticking to the blade 8, ensuring the integrity of the slice. It can also reduce the friction between the blade 8 and the Chinese medicinal herbs, making the slice surface smoother, reducing burrs and damage, improving the slice quality, and better adapting to the shape and size of Chinese medicinal herbs. It can also effectively slice irregularly shaped Chinese medicinal herbs. In addition, vibration cutting can allow the blade 8 to cut the Chinese medicinal herbs more quickly. Compared with the traditional single cutting action, it greatly improves the slicing efficiency and meets the needs of large-scale production. Regarding the reciprocating movement of the blade 8 along the axis of the rotating shaft 5, through the above displacement of the blade 8, it can further improve efficiency through bidirectional vibration and achieve a reciprocating strong slicing effect when slicing Chinese medicinal herbs, and reduce the residual rate of Chinese medicinal herbs on the blade 8 during slicing.

[0041] As the indexing frame 7 rotates, the residual water stains and residual tablets on the blade plate 8 can be cleaned by the cleaning cotton block 10, thereby improving the service life of the blade plate 8.

[0042] During the slicing process, the vibration generated by the vibrator allows the blade 8 to penetrate the Chinese herbal medicine more quickly at the moment of cutting, reducing the time and force required for cutting. Compared with ordinary cutting methods, vibration cutting can cut Chinese herbal medicine more efficiently, especially for some tough Chinese herbal medicines, where the effect of the vibrator is more obvious. This helps to improve the overall working efficiency of the slicer and meet the needs of large-scale production.

[0043] Some Chinese medicinal herbs contain a large amount of mucilage, sugars and other sticky components, which are easy to stick to the cutting plate 8 during the cutting process, affecting the continuity and quality of the slices. The heating wire can heat the cutting plate 8 and increase its temperature. When the temperature of the cutting plate 8 increases, the stickiness of these sticky components will decrease, thereby reducing the adhesion between the medicinal materials and the cutting plate 8 and ensuring the smooth progress of the slicing process.

[0044] The microcontroller 13 independently adjusts the amplitude of the excitation motor 9 and the temperature of the heating wire;

[0045] The temperature of the heating wire is controlled by a microcontroller 13. The temperature range of the heating wire is 40-60℃ to avoid high temperature damage to the effective components of traditional Chinese medicine.

[0046] Working principle and usage process of this utility model:

[0047] When the multi-specification Chinese herbal medicine slicer of this utility model is working, the Chinese herbal medicine to be sliced ​​is first placed in the feeding gap between the annular conveyor belts 26 of the two transmission modules 25. The transmission module 25 drives the annular conveyor belts 26 to rotate, stably conveying the Chinese herbal medicine to below the blade plate 8. The reciprocating push rod 12 drives the blade plate 8 to move back and forth at a set frequency. The first motor 2 starts, and its output shaft drives the cam shaft 14 of the cam system to rotate through the first elastic tension belt 3. The guide cam 15 on the cam shaft 14 rotates accordingly, so that the vibrating cutter 4 is in contact with the guide cam 15. The driven wheel 16 of the joint rolls, causing the vibrating cutter 4 to vibrate up and down on the cutter holder 1. The return spring 17 on the bottom surface of the vibrating cutter 4 plays a limiting and resetting role. At the same time, the first elastic tension belt 3 also drives the rotating shaft 5 to rotate. The active gear ring 6 on the rotating shaft 5 drives the passive gear 22 of the reciprocating drive assembly to rotate. The passive gear 22 causes the half-tooth gear 21 to rotate through the toothed shaft 20. The half-tooth gear 21 is transmitted to the toothed plate 24 on the cutter plate 8, driving the two cutter plates 8 to reciprocate in a direction perpendicular to the rotating shaft 5. The return spring 23 on the side of the cutter plate 8 assists in resetting.

[0048] The built-in vibrating motor 9 of the blade plate 8 generates vibration, enabling the blade plate 8 to penetrate the Chinese medicine more quickly during cutting. The heating wire heats the blade plate 8, reducing the adhesion between sticky Chinese medicine and the blade plate 8. Under the combined action of the up-and-down vibration of the vibrating frame 4 and the reciprocating motion of the blade plate 8, it is possible to achieve vibration cutting and reciprocating strong slicing of Chinese medicines of different textures, shapes and sizes, thereby improving the slicing quality and efficiency.

[0049] After a single cut is completed, the second motor 18 drives the indexing frame 7 to rotate via the second elastic tension belt 19. The indexing frame 7 drives the blade plate 8 to rotate, and the rotation of the indexing frame 7 causes the blade plate 8 to pass over the cleaning cotton block 10 to clean residual water stains and medicine pieces, thereby improving the service life of the blade plate 8. The microcontroller 13 can control the reciprocating push rod 12 to adjust the height of the blade holder 1, further adapting to the production needs of various specifications of Chinese herbal medicine pieces.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] 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 slicing machine for producing multi-specification traditional Chinese medicine decoction pieces, comprising a knife holder (1) and a first motor (2), characterized in that: The output shaft of the first motor (2) is connected to a first elastic tension belt (3). A cam system is installed on the tool holder (1). A vibrating cutting frame (4) that can reciprocate up and down on the tool holder (1) is installed on the cam system. A rotating shaft (5) is rotatably installed on the vibrating cutting frame (4). An active gear ring (6) is installed on the rotating shaft (5). The cam system and the rotating shaft (5) are both driven by the first elastic tension belt (3). A rotating frame (7) is rotatably installed on the rotating shaft (5). Two blades (8) are slidably installed on the rotating frame (7). A reciprocating drive assembly driven by the active gear ring (6) is installed on the rotating frame (7). The blades (8) are driven by the reciprocating drive assembly and reciprocate in a direction perpendicular to the rotating shaft (5). Both blades (8) have a built-in excitation motor (9) and a heating wire. A cleaning cotton block (10) for cleaning the blades (8) is installed on the tool holder (1).

2. The slicing machine for producing multi-specification traditional Chinese medicine decoction pieces according to claim 1, characterized in that: It also includes a base frame (11), a set of reciprocating push rods (12) are installed between the base frame (11) and the tool holder (1), and a microcontroller (13) is installed on the base frame (11).

3. The slicing machine for producing multi-specification traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The cam system includes a camshaft (14) rotatably connected to the tool holder (1), the camshaft (14) being drivenly connected to the first elastic tension belt (3), a guide cam (15) being mounted on the camshaft (14), a driven wheel (16) being rotatably mounted on the vibrating cutter frame (4) and engaging with the guide cam (15), the vibrating cutter frame (4) being slidably connected to the tool holder (1), and a set of return springs (17) being limited by the tool holder (1) being mounted on the bottom surface of the vibrating cutter frame (4).

4. The slicing machine for producing multi-specification traditional Chinese medicine decoction pieces according to claim 1, characterized in that: It also includes a second motor (18) mounted on the tool holder (1), the output shaft of the second motor (18) is connected to a second elastic tension belt (19), and the second elastic tension belt (19) is connected to the indexing frame (7).

5. The slicing machine for producing multi-specification traditional Chinese medicine decoction pieces according to claim 4, characterized in that: Both the first elastic tension band (3) and the second elastic tension band (19) are made of rubber, and both the first elastic tension band (3) and the second elastic tension band (19) can be elastically displaced.

6. The slicing machine for producing multi-specification traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The reciprocating drive assembly includes two toothed shafts (20) rotatably connected to the indexing frame (7). Each of the two toothed shafts (20) is equipped with a half-tooth gear (21) and a driven gear (22). Both driven gears (22) are connected to the driving gear ring (6). Each of the two cutter plates (8) is equipped with a return spring (23) that is limited by the indexing frame (7) on its side, and each of the two cutter plates (8) is equipped with a toothed plate (24). The two toothed plates (24) are connected to the two half-tooth gears (21) respectively.

7. The slicing machine for producing multi-specification traditional Chinese medicine decoction pieces according to claim 1, characterized in that: It also includes two transmission modules (25), each of which is equipped with an annular feeding belt (26), and a feeding gap is fixedly provided between the two annular feeding belts (26).