A medicinal material impurity removal device in the production process of Chinese herbal medicine slices

Abstract

The invention discloses a device for removing impurities from medicinal materials in the production process of Chinese medicinal slices, comprising a support foot, a shell, a conveyor belt, a feeding mechanism, an impurity removal mechanism and a cutting mechanism; the impurity removal mechanism comprises an impurity removal sleeve and a cutting wire box, the impurity removal sleeve comprises a mounting circular plate, a hinged cone plate, a threading column and a hinge, the cutting mechanism comprises a cutting cam, a cutting knife holder, a guide rod, a reset spring, a cutting frame, a guide reset frame, a cutting knife and a pressing roller, the pressing roller is located above the discharge end of the conveyor belt, a plurality of pressing rollers are mounted on the pressing roller, the cutting cam is mounted in the shell through a cam shaft, the cutting frame and the guide reset frame are both mounted in the shell, and a plurality of guide rods are arranged between the cutting frame and the guide reset frame; the invention can remove impurities on the surface of stem Chinese medicinal materials of different thicknesses and separate impurities from the medicinal materials through the impurity removal sleeve structure design, so as to ensure that the thickness and size of the Chinese medicinal slices formed after slicing are more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese medicine slice production equipment, and in particular to a medicinal material impurity removal device in the production process of Chinese medicine slices. Background Art

[0002] Chinese herbal medicine slices are Chinese herbal medicines that have been processed and prepared according to the theory of traditional Chinese medicine and the processing methods of traditional Chinese medicine, and can be directly used in clinical Chinese medicine. This concept shows that there is no absolute boundary between Chinese herbal medicines and Chinese herbal medicine slices. Chinese herbal medicine slices include some slices of Chinese herbal medicines processed at the place of origin, original herbal medicine slices, and slices that have been cut and processed. The first two categories should be regarded as Chinese herbal medicines in terms of management, but they are understood as slices in the formulation and preparation according to the theory of traditional Chinese medicine.

[0003] When existing Chinese herbal medicine slices such as Panax notoginseng, ginseng, angelica, Panax notoginseng, etc. are produced and sliced, there are many stem whiskers and damaged dandruff and other debris on the surface of their rhizomes. After cutting, the stem whiskers and dandruff are mixed with the slices, and some are even integrated with the slices, affecting the quality and uniformity of the slices and affecting the sales of the slices. In view of the above problems, the present invention provides a solution. Summary of the invention

[0004] The purpose of the invention is to provide a device for removing impurities from medicinal materials in the production process of Chinese medicinal pieces.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A medicinal material impurity removal device in the production process of Chinese herbal medicine slices, comprising a support foot, a shell, a conveyor belt, a feeding mechanism, an impurity removal mechanism and a cutting mechanism, wherein the support foot is installed at the bottom of the shell, the conveyor belt is installed in the shell, the feeding mechanism comprises a feeding hopper arranged above the shell, and feeding rollers are arranged on both sides of the feeding port of the feeding hopper, and the ends of the two feeding rollers are respectively meshed and driven by a driving gear and a driven gear with the same number of teeth, the feeding roller where the driving gear is located is connected to a feeding motor, and the feeding motor is installed outside the feeding hopper, and each feeding roller is equipped with a plurality of feeding rollers, and each feeding roller is connected to the feeding roller through a plurality of connecting springs, and the two ends of the connecting spring are respectively fixedly connected to the feeding roller and the feeding roller; the impurity removal mechanism comprises an impurity removal mechanism. The invention relates to a sleeve and a cutting wire box, wherein the impurity removal sleeve comprises a mounting circular plate, a hinged cone plate, a threading column and a hinge, wherein the mounting circular plate is fixedly mounted at the bottom of the feed port of the feed hopper, wherein the number of the hinged cone plates is multiple, and the multiple hinged cone plates are evenly arranged at the bottom of the mounting circular plate, and the upper ends of the multiple hinged cone plates are hinged to the mounting circular plate through hinges, and a threading column is arranged at the bottom of each hinged cone plate, and each threading column is provided with a threading hole for the cutting wire to pass through, one end of the cutting wire is fixedly connected to a threading column, and then passes through the threading holes on the multiple threading columns in turn, so that the cutting wire surrounds the threading column for one week and then passes through the wiring hole on the cutting wire box and is connected to the outer end of the spring, and the torsion of the spring contracts the cutting wire and wraps it around its outside, and the contraction of the cutting wire contracts the bottom of the hinged cone plate The impurity removal sleeve is pulled together to form a cone; the impurity removal sleeve is located above the feeding end of the conveyor belt, and an air inlet cover and an impurity removal fan are provided on one side of the impurity removal sleeve, and a material baffle plate and a wind shield are provided on the other side of the impurity removal sleeve, the material baffle plate is located below the wind shield, and a gap is left between the two sides for impurities to pass through, and an inclined material guide plate is provided above the material baffle plate, and the material baffle plate and the wind shield separate one side of the shell into a collecting chamber, and an air outlet cover is provided on the outer wall of the collecting chamber; the cutting mechanism comprises a cutting cam, a cutting knife frame, a guide rod, a reset spring, a cutting frame, a guide reset frame, a cutting knife and a pressing roller, the pressing roller is located above the discharging end of the conveyor belt, and a plurality of pressing rollers are installed on the pressing roller, and the inner side of the pressing roller is connected to the pressing roller through a plurality of connecting springs The two ends of each connecting spring are respectively fixedly connected to the inner wall of the pressure roller and the outer wall of the pressure roller. The cutting cam is installed in the shell through a camshaft. The cutting frame and the guide reset frame are both installed in the shell. A plurality of guide rods are arranged between the cutting frame and the guide reset frame. One side of the cutting knife frame is sleeved on the plurality of guide rods. The compressed reset spring is sleeved on the guide rod at the bottom of the cutting knife frame and pushes the cutting knife frame to contact the cutting cam. The cutting knife is installed at the bottom of the cutting knife frame. The cutting knife is located on the discharge side of the pressure roller. The unloading slide plate extends to the outside of the discharge port of the shell. The camshaft, the pressure roller and the driving wheel of the conveyor belt are all connected to the main motor through a transmission mechanism. A unloading slide plate is provided below the discharge end of the conveyor belt.

[0007] Furthermore, there are multiple impurity removal sleeves, which are arranged side by side below the feed hopper, and each impurity removal sleeve is equipped with a cutting wire, and each cutting wire is connected to the outer end of a corresponding clockwork spring in the cutting wire box.

[0008] Furthermore, at least three feed rollers are installed on the feed rollers on both sides above each impurity removal sleeve.

[0009] Furthermore, the outer side of the pressure roller and the inner side of the pressure roller are provided with mounting holes for installing the second connecting spring, and the two ends of the second connecting spring are compressed and installed in the mounting holes; the first connecting spring adopts the same structure and is installed between the feed roller and the feed roller.

[0010] Furthermore, the outer side of the pressing roller is covered with a pressing sleeve made of a flexible material, and the outer side of the pressing sleeve is provided with evenly distributed ridges, and the length direction of the ridges is arranged along the axial direction of the pressing sleeve.

[0011] Furthermore, the upper end of the cutting knife is fixedly mounted on the bottom of the cutting knife holder by a locking bolt.

[0012] Furthermore, the transmission mechanism includes a gear pair and a pulley installed in the transmission cavity, the end of the pressure roller is connected to the output shaft of the main motor, the camshaft is connected to the pressure roller through the pulley, and the driving wheel is connected to the pressure roller through the gear pair.

[0013] Furthermore, a cutting support plate is provided at the bottom of the conveyor belt below the cutting blade and the pressing roller, and both ends of the cutting support plate are fixed to the inner wall of the shell.

[0014] Preferably, the inner end of each clockwork spring is fixed on a corresponding fixing column in the cutting wire box.

[0015] In summary, the present invention has the following beneficial effects: the present invention can remove impurities on the surface of stem Chinese medicinal materials of different thicknesses through the design of the impurity removal sleeve structure, and separate impurities from the medicinal materials, thereby ensuring that the thickness and size of the Chinese medicinal slices formed after slicing are more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the impurity removal mechanism of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the feed hopper of the present invention;

[0019] Figure 4 It is a bottom view of the impurity removal sleeve of the present invention;

[0020] Figure 5 It is a side view of the impurity removal sleeve of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the clockwork spring of the present invention;

[0022] Figure 7 is a schematic diagram of the cutting mechanism portion of the present invention;

[0023] Figure 8 It is a structural schematic diagram of the feed roller of the present invention;

[0024] Fig. 9 It is a structural schematic diagram of the pressing roller of the present invention.

[0025] In the figure, 1, support leg; 2, shell; 3, conveyor belt; 4, baffle plate; 5, guide plate; 6, wind shield; 7, collection chamber; 8, air outlet cover; 9, feed hopper; 10, feed motor; 11, impurity removal sleeve; 12, cutting wire box; 13, impurity removal fan; 14, air inlet cover; 15, cutting cam; 16, cutting knife holder; 17, guide rod; 18, reset spring; 19, cutting frame; 20, guide reset frame; 21, cutting knife; 22, pressing roller; 23, driving wheel; 24, unloading slide plate; 25, cutting support Support plate; 26. Spring; 27. Wire routing hole; 28. Cutting line; 29. ​​Driving gear; 30. Driven gear; 31. Feed roller; 32. Feed roller; 33. Mounting circular plate; 34. Articulated cone plate; 35. Threading column; 36. Hinge; 37. Fixed column; 38. Transmission chamber; 39. Gear pair; 40. Pulley; 41. Main motor; 42. Camshaft; 43. Locking bolt; 44. Connecting spring 1; 45. Pressing roller; 46. Pressing sleeve; 47. Connecting spring 2; 48. Mounting hole. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, a medicinal material impurity removal device in the production process of Chinese herbal medicine slices includes a support leg 1, a shell 2, a conveyor belt 3, a feeding mechanism, an impurity removal mechanism and a cutting mechanism. The support leg 1 is installed at the bottom of the shell 2, and the conveyor belt 3 is installed in the shell 2. Figure 1 and Figure 3As shown, the feeding mechanism includes a feed hopper 9 arranged above the shell 2, and feed rollers 31 are provided on both sides of the feed port of the feed hopper 9. The ends of the two feed rollers 31 are respectively meshed and driven by a driving gear 29 and a driven gear 30 with the same number of teeth, which can ensure that the rotation speed of the two feed rollers 31 is the same. The feed roller 31 where the driving gear 29 is located is connected to the feed motor 10, and the feed motor 10 is installed outside the feed hopper 9. A plurality of feed rollers 32 are installed on each feed roller 31, and each feed roller 32 is connected to the feed roller 31 through a plurality of connecting springs 44. The two ends of the connecting spring 44 are respectively fixedly connected to the feed roller 31 and the feed roller 32. The specific fixed connection method can be selected from welding, strong glue gluing, etc. As specifically shown Figure 8 As shown in the figure, six connecting springs 44 are used for connection. Similarly, at least three connecting springs 44 may be used. Figure 2 , 3 , 4, 5 and 6, the impurity removal mechanism includes an impurity removal sleeve 11 and a cutting wire box 12, the impurity removal sleeve 11 includes a mounting circular plate 33, a hinged cone plate 34, a threading column 35 and a hinge 36, the mounting circular plate 33 is fixedly installed at the bottom of the feed port of the feed hopper 9 by bolts, and a through hole is left in the middle for the material to pass through, the number of the hinged cone plates 34 is multiple, and the multiple hinged cone plates 34 are evenly arranged on the outer side of the through hole at the bottom of the mounting circular plate 33, and the upper ends of the multiple hinged cone plates 34 are hinged to the mounting circular plate 33 by hinges 36, so that they can rotate relative to the mounting circular plate 33, and each A threading post 35 is provided at the bottom of the hinged cone plate 34, and each threading post 35 is provided with a threading hole for the cutting wire 28 to pass through. One end of the cutting wire 28 is fixedly connected to a threading post 35, and then passes through the threading holes on multiple threading posts 35 in sequence, so that the cutting wire 28 passes through the wire routing hole 27 on the cutting wire box 12 and is connected to the outer end of the spring 26 after it goes around the threading post 35. The torsion of the spring 26 shrinks the cutting wire 28 and wraps around its outer side. The cutting wire 28 shrinks and pulls the bottom of the hinged cone plate 34 together to form a conical impurity removal sleeve 11. Figure 1 As shown, the impurity removal sleeve 11 is located above the feeding end of the conveyor belt 3, and an air inlet cover 14 and an impurity removal fan 13 are provided on one side of the impurity removal sleeve 11, and a material baffle plate 4 and a wind shield plate 6 are provided on the other side of the impurity removal sleeve 11. The material baffle plate 4 is located below the wind shield plate 6, and a gap is left between the two sides for impurities to pass through. An inclined material guide plate 5 is provided above the material baffle plate 4. The material baffle plate 4 and the wind shield plate 6 divide one side of the housing 2 into a collection chamber 7, and an air outlet cover 8 is provided on the outer wall of the collection chamber 7. Figure 1 , Figure 7 and Fig. 9As shown, the cutting mechanism includes a cutting cam 15, a cutting knife frame 16, a guide rod 17, a reset spring 18, a cutting frame 19, a guide reset frame 20, a cutting knife 21 and a pressing roller 22. The pressing roller 22 is located above the discharge end of the conveyor belt 3. A plurality of pressing rollers 45 are installed on the pressing roller 22. The inner side of the pressing roller 45 is connected to the pressing roller 22 through a plurality of connecting springs 47. The two ends of each connecting spring 47 are fixedly connected to the inner wall of the pressing roller 45 and the outer wall of the pressing roller 22 respectively. The fixed connection method can be the same as the method of the connecting spring 44. Fig. 9 Six connecting springs 47 are used. Figure 1 As shown, the cutting cam 15 is installed in the housing 2 through the camshaft 42, the cutting frame 19 and the guide reset frame 20 are both installed in the housing 2, a plurality of guide rods 17 are provided between the cutting frame 19 and the guide reset frame 20, one side of the cutting tool frame 16 is sleeved on the plurality of guide rods 17, a compressed reset spring 18 is sleeved on the guide rod 17 at the bottom of the cutting tool frame 16, and pushes the cutting tool frame 16 to contact the cutting cam 15, the cutting knife 21 is installed at the bottom of the cutting tool frame 16, the cutting knife 21 is located on the discharge side of the pressure roller 22, the unloading slide plate 24 extends to the outside of the discharge port of the housing 2, the camshaft 42, the pressure roller 22 and the driving wheel 23 of the conveyor belt 3 are all connected to the main motor 41 through a transmission mechanism, as shown in FIG. Figure 7 A material discharge slide 24 is provided below the discharge end of the conveyor belt 3, and the cut materials are discharged and collected along the material discharge slide 24.

[0028] like Figure 3 and Figure 4 As shown, as a further optimization of the scheme, the number of the impurity removing sleeves 11 is 3, and the 3 impurity removing sleeves 11 are arranged side by side below the feed hopper 9, and each impurity removing sleeve 11 is installed with a cutting wire 28, and each cutting wire 28 is connected to the outer end of a corresponding clockwork spring 26 in the cutting wire box 12. Under the action of the clockwork spring 26, the bottom of the impurity removing sleeve 11 shrinks to form a conical structure; similarly, the number of impurity removing sleeves 11 can be designed according to needs, which is the same as the number of feed ports of the feed hopper 9.

[0029] Further, such as Figure 3 As shown, at least three feed rollers 32 are installed on the feed rollers 31 on both sides above each impurity removal sleeve 11. When the stem Chinese medicinal materials are put into the feed hopper 9, the feed rollers 32 on the feed rollers 31 on both sides are attached to both sides of the stem Chinese medicinal materials. The feed rollers 32 will automatically squeeze and move according to the size of the medicinal materials, change the feed gap, and avoid excessive squeezing of the medicinal materials and destroying their integrity.

[0030] like Fig. 9As shown, the outer side of the pressure roller 22 and the inner side of the pressure roller 45 are provided with mounting holes 48 for mounting the second connecting spring 47. The two ends of the second connecting spring 47 are compressed and mounted in the mounting holes 48, and when the outer side of the pressure roller 22 and the inner side of the pressure roller 45 are in contact with each other, the longest second connecting spring 47 is still in a compressed state, which can ensure that the second connecting spring 47 does not fall off from the mounting hole 48; the connecting spring 1 44 is installed between the feed roller 31 and the feed roller 32 using the same structure.

[0031] Furthermore, the outer side of the pressing roller 45 is covered with a pressing sleeve 46 made of flexible material, and the outer side of the pressing sleeve 46 is provided with evenly distributed ridges, and the length direction of the ridges is arranged along the axial direction of the pressing sleeve 46 to avoid damaging the surface of the medicinal materials when feeding.

[0032] like Figure 7 As shown, the upper end of the cutting knife 21 is fixedly mounted on the bottom of the cutting knife holder 16 by a locking bolt 43 , which facilitates the replacement of the cutting knife 21 .

[0033] Furthermore, the transmission mechanism includes a gear pair 39 and a pulley 40 installed in the transmission chamber 38, the end of the pressure roller 22 is connected to the output shaft of the main motor 41, the camshaft 42 is connected to the pressure roller 22 through the pulley 40, and the driving wheel 23 is connected to the pressure roller 22 through the gear pair 39.

[0034] like Figure 1 As shown, a cutting support plate 25 is provided at the bottom of the conveyor belt 3 below the cutting knife 21 and the pressure roller 22. Both ends of the cutting support plate 25 are fixed to the inner wall of the shell 2. When the cutting knife 21 moves down for cutting, the cutting support plate 25 can provide rigidity for the conveyor belt 3 to avoid the situation of continuous cutting. In order to ensure the service life of the conveyor belt 3, the conveyor belt 3 is made of wear-resistant, scratch-resistant and tough material.

[0035] like Figure 6 As shown, the inner end of each clockwork spring 26 is fixed on the corresponding fixing column 37 in the cutting wire box 12, and its specific fixing structure can be selected according to the connection structure of the end of the clockwork spring 26, such as clamping, bolt fixing, etc.

[0036] Working process: rhizome Chinese medicinal materials (panax notoginseng, ginseng, angelica, etc.) are slowly (one by one, one at a time into each impurity removal sleeve 11) added into the feed hopper 9, the feed roller 32 on the feed roller 31 rotates and deflects at the same time (according to the different thickness of the medicinal materials, the feed roller 32 is squeezed and deflected) to feed the Chinese medicinal materials into the impurity removal sleeve 11, the Chinese medicinal materials enter the impurity removal sleeve 11, and squeeze the hinged cone plate 34 of the impurity removal sleeve 11 to open, the cutting line 28 opens with the impurity removal sleeve 11 and fits on the surface of the Chinese medicinal materials (the gap between the cutting line 28 and the surface of the Chinese medicinal materials is small, the gap The cutting line 28 is smaller than the diameter of the stem whiskers and the size of the dandruff protrusions, and it can be approximately considered that the cutting line 28 is attached to the surface of the Chinese medicinal materials. When the Chinese medicinal materials pass through the impurity removal sleeve 11, the cutting line 28 cuts the stem whiskers and dandruff on the surface of the Chinese medicinal materials. The cut stem whiskers and dandruff are blown off to the guide plate 5 by the impurity removal fan, and finally slide into the collecting chamber 7. The Chinese medicinal materials after surface impurities are removed are transported to the bottom of the cutting mechanism by the conveyor belt 3, and are pressed and fed by the pressing roller. The cutting mechanism slices the Chinese medicinal materials, and the Chinese medicinal pieces formed by the slices are collected by the unloading slide plate 24.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A medicinal material impurity removal device in the production process of Chinese herbal medicine slices, comprising a support foot (1), a shell (2), a conveyor belt (3), a feeding mechanism, an impurity removal mechanism and a cutting mechanism, wherein the support foot (1) is installed at the bottom of the shell (2), and the conveyor belt (3) is installed in the shell (2), characterized in that: The feeding mechanism comprises a feeding hopper (9) arranged above the housing (2), feeding rollers (31) are arranged on both sides of the feeding port of the feeding hopper (9), the ends of the two feeding rollers (31) are respectively meshed and driven by a driving gear (29) and a driven gear (30) with the same number of teeth, the feeding roller (31) where the driving gear (29) is located is connected to a feeding motor (10) in a transmission manner, the feeding motor (10) is installed outside the feeding hopper (9), and each feeding roller (31) is installed with a plurality of feeding rollers (32), each feeding roller (32) is connected to the feeding roller (31) through a plurality of connecting springs (44), and the connecting springs (44) are connected to the feeding roller (31). The two ends of the connecting spring (44) are fixedly connected to the feed roller (31) and the feed roller (32) respectively; the impurity removal mechanism comprises an impurity removal sleeve (11) and a cutting wire box (12); the impurity removal sleeve (11) comprises a mounting circular plate (33), a hinged cone plate (34), a threading column (35) and a hinge (36); the mounting circular plate (33) is fixedly mounted at the bottom of the feed port of the feed hopper (9); the number of the hinged cone plates (34) is multiple, and the multiple hinged cone plates (34) are evenly arranged at the bottom of the mounting circular plate (33); the upper ends of the multiple hinged cone plates (34) are hingedly connected to the mounting circular plate (33) through hinges (36); each A threading post (35) is provided at the bottom of a hinged cone plate (34), and each threading post (35) is provided with a threading hole for the cutting wire (28) to pass through. One end of the cutting wire (28) is fixedly connected to a threading post (35), and then sequentially passes through the threading holes on the plurality of threading posts (35), so that the cutting wire (28) surrounds the threading post (35) for one circle, passes through the routing hole (27) on the cutting wire box (12), and is connected to the outer end of the spring spring (26). The torsion of the spring spring (26) contracts the cutting wire (28) and wraps around the outer side thereof. The contraction of the cutting wire (28) pulls the bottom of the hinged cone plate (34) The impurity removal sleeve (11) is formed into a conical shape; the impurity removal sleeve (11) is located above the feeding end of the conveyor belt (3); an air inlet cover (14) and an impurity removal fan (13) are provided on one side of the impurity removal sleeve (11); a material baffle plate (4) and a wind shield plate (6) are provided on the other side of the impurity removal sleeve (11); the material baffle plate (4) is located below the wind shield plate (6), and a gap is left between the two sides for impurities to pass through; an inclined material guide plate (5) is provided above the material baffle plate (4); the material baffle plate (4) and the wind shield plate (6) divide one side of the housing (2) into a collecting chamber (7); an air outlet cover (8) is provided on the outer side wall of the collecting chamber (7);The cutting mechanism comprises a cutting cam (15), a cutting knife frame (16), a guide rod (17), a reset spring (18), a cutting frame (19), a guide reset frame (20), a cutting knife (21) and a pressing roller (22). The pressing roller (22) is located above the discharge end of the conveyor belt (3). A plurality of pressing rollers (45) are installed on the pressing roller (22). The inner side of the pressing roller (45) is connected to the pressing roller (22) via a plurality of connecting springs (47). The two ends of each connecting spring (47) are respectively fixedly connected to the inner wall of the pressing roller (45) and the outer wall of the pressing roller (22). The cutting cam (15) is installed in the housing (2) via a cam shaft (42). The cutting frame (19) and the guide reset frame (20) are both installed in the housing (2). A plurality of guide rods (17) are arranged between the cutting frame (19) and the guide reset frame (20), one side of the cutting blade frame (16) is sleeved on the plurality of guide rods (17), a reset spring (18) in a compressed state is sleeved on the guide rod (17) at the bottom of the cutting blade frame (16), and pushes the cutting blade frame (16) to contact the cutting cam (15), the cutting blade (21) is installed at the bottom of the cutting blade frame (16), the cutting blade (21) is located at the discharge side of the pressing roller (22), the unloading slide plate (24) extends to the outside of the discharge port of the housing (2), the cam shaft (42), the pressing roller (22) and the driving wheel (23) of the conveyor belt (3) are all connected to the main motor (41) through a transmission mechanism, and a unloading slide plate (24) is arranged below the discharge end of the conveyor belt (3). ; 2. The device for removing impurities from medicinal materials in the production process of Chinese medicinal pieces according to claim 1, characterized in that: There are a plurality of impurity removal sleeves (11), which are arranged side by side below the feed hopper (9). A cutting wire (28) is installed on each impurity removal sleeve (11), and each cutting wire (28) is connected to the outer end of a corresponding spring (26) in the cutting wire box (12).

3. The device for removing impurities from medicinal materials in the production process of Chinese medicinal slices according to claim 2, characterized in that: At least three feeding rollers (32) are installed on the feeding rollers (31) on both sides above each impurity removal sleeve (11).

4. The device for removing impurities from medicinal materials in the production process of Chinese medicinal pieces according to claim 3, characterized in that: The outer side of the pressing roller (22) and the inner side of the pressing roller (45) are both provided with mounting holes (48) for mounting the second connecting spring (47), and the two ends of the second connecting spring (47) are compressed and mounted in the mounting holes (48); the first connecting spring (44) is mounted between the feed roller (31) and the feed roller (32) using the same structure.

5. The device for removing impurities from medicinal materials in the production process of Chinese medicinal slices according to claim 4, characterized in that: The outer side of the pressing roller (45) is covered with a pressing sleeve (46) made of a flexible material. The outer side of the pressing sleeve (46) is provided with evenly distributed ridges, and the length direction of the ridges is arranged along the axial direction of the pressing sleeve (46).

6. The device for removing impurities from medicinal materials in the production process of Chinese medicinal pieces according to claim 5, characterized in that: The upper end of the cutting knife (21) is fixedly mounted on the bottom of the cutting knife holder (16) via a locking bolt (43).

7. The device for removing impurities from medicinal materials in the production process of Chinese medicinal slices according to claim 6, characterized in that: The transmission mechanism comprises a gear pair (39) and a pulley (40) installed in a transmission chamber (38); an end of the pressing roller (22) is connected to the output shaft of a main motor (41); the camshaft (42) is connected to the pressing roller (22) through the pulley (40); and the driving wheel (23) is connected to the pressing roller (22) through the gear pair (39).

8. The device for removing impurities from medicinal materials in the production process of Chinese medicinal slices according to claim 7, characterized in that: A cutting support plate (25) is provided at the bottom of the conveyor belt (3) below the cutting blade (21) and the pressing roller (22), and both ends of the cutting support plate (25) are fixed to the inner wall of the shell (2).

9. The device for removing impurities from medicinal materials in the production process of Chinese medicinal slices according to claim 2, characterized in that: The inner end of each spring (26) is fixed on a corresponding fixing column (37) in the cutting wire box (12).

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