A multi-stage grinding device for Chinese herbal medicine pieces

Abstract

The present invention belongs to the technical field of Chinese medicine grinding, and specifically discloses a multi-stage grinding device for Chinese medicine slices. It comprises a support frame, the support frame is fixedly connected with a first electric push rod, the telescopic end of the first electric push rod is fixedly connected with a lifting plate, the lifting plate is fixedly connected with a first motor, a universal shaft is arranged on the output shaft of the first motor, the universal shaft is rotatably connected with a grinding shell, the universal shaft is fixedly connected with a transmission rod, the transmission rod is slidably connected with a lifting shell, the lifting shell is provided with uniformly distributed grinding knives, the support frame is ball-connected with a swing block, the swing block is fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a transmission shaft, and the grinding shell is provided with a connecting block. The present invention deflects the grinding shell by moving the lifting plate upward, and drives the grinding shell to rotate by the transmission shaft and the connecting block, so that the medicinal materials in the grinding shell are turned over, and the degree of disorder of the medicinal materials is increased.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese medicine grinding, and in particular to a multi-stage grinding device for Chinese medicine pieces. Background Art

[0002] Traditional Chinese medicine refers to substances used for the prevention, treatment, and diagnosis of diseases and having rehabilitation and health-care effects under the guidance of TCM theory. In order to facilitate the preparation and weighing of general Chinese medicine, the staff will process and prepare the Chinese medicine materials and make them into slices (i.e., Chinese medicine slices) for the convenience of patients to brew and drink. However, it still takes a long time to boil and brew the slices of Chinese medicine slices, and many medicinal ingredients cannot be easily boiled out, so that the medicinal ingredients of the Chinese medicine slices (hereinafter referred to as medicines) cannot be fully utilized. Therefore, people will grind the medicines through a grinder before boiling them, so that the medicines are in powder form before boiling. When the existing grinding device grinds the medicines, Generally, medicinal materials are ground by a high-speed rotating crushing knife so that the medicinal materials are in a uniformly distributed powder after grinding. However, in actual use, as the medicinal materials are gradually ground, the number of particles after grinding increases, while the diameter of a single particle gradually decreases, which leads to reduced fluidity of the medicinal materials. Some large-particle medicinal materials near the inner wall of the grinding device are blocked by other medicinal materials and cannot move toward the crushing knife, resulting in that they cannot be further ground. In addition, the existing grinding device cannot push the medicinal materials near the inner wall to the vicinity of the crushing knife during the grinding process, resulting in that some medicinal materials cannot be completely ground, resulting in large-particle medicinal materials still existing in the ground medicinal materials, affecting the normal boiling process of the medicinal materials. Summary of the invention

[0003] The invention provides a multi-stage grinding device for Chinese herbal medicine slices, which is designed to overcome the disadvantage that the existing grinding device is prone to grinding without replenishment when grinding medicinal materials, and needs to grind multiple times.

[0004] The technical scheme of the present invention is: a multi-stage grinding device for Chinese herbal medicine slices, comprising a supporting frame, a first electric push rod is fixedly connected to the lower part of the supporting frame, a lifting plate is fixedly connected to the telescopic end of the first electric push rod, the lifting plate is fixedly connected to the first motor, a universal shaft is arranged on the output shaft of the first motor, an end of the universal shaft away from the lifting plate is rotatably connected to a grinding shell, a separation plate is fixedly connected to the side of the grinding shell close to the universal shaft, a transmission rod is fixedly connected to the end of the universal shaft away from the lifting plate, a lifting shell rotatably connected to the separation plate is slidably connected to the transmission rod, a uniformly distributed grinding knife is arranged on the outer side of the lifting shell, the lifting shell is fixedly connected to a rotating frame, the rotating frame is rotatably connected to the separation plate, a circumferentially distributed coarse breaking knife is fixedly connected to the side of the rotating frame away from the separation plate, a swing block is ball-connected at the upper part of the supporting frame, a second motor is fixedly connected to the lower side of the swing block, the output shaft of the second motor is fixedly connected to the transmission shaft rotatably connected to the grinding shell, the grinding shell is provided with a connecting block fixedly connected to the transmission shaft, and an adjusting mechanism for driving the lifting shell to move is arranged on the side of the separation plate close to the universal shaft.

[0005] Preferably, the roughing knife is made of elastic material, and an inclined surface facing the center of the grinding shell is arranged on the inner side thereof, so as to enable the roughing knife to push the material toward the center of the lifting shell during rotation.

[0006] Preferably, the adjusting mechanism includes a rotating rod, which is rotatably connected to the side of the separation plate close to the universal shaft, and the side of the separation plate close to the universal shaft is rotatably connected to a rotating sleeve, the rotating sleeve is slidably connected to the lifting shell, the rotating sleeve is fixed with a missing gear, the rotating rod is provided with a gear, the gear is transmission-matched with the missing gear on the rotating sleeve, a tension spring is provided between the lifting shell and the universal shaft, an extrusion block is fixedly connected to the lower part of the rotating rod, the extrusion block is extrusion-matched with the lifting shell, and an extrusion component for compressing the circumferentially distributed coarse breaking knife is provided on the transmission rod.

[0007] Preferably, the extrusion assembly includes a guide tube, which is fixedly connected to and communicated with one end of the transmission rod away from the universal shaft, the guide tube is slidably connected to the lifting shell, the transmission rod is provided with a liquid storage chamber and a liquid inlet hole, the liquid storage chamber of the transmission rod is communicated with the lifting shell through the liquid inlet hole, a sliding sleeve is slidably connected to the side of the guide tube away from the lifting shell, a circumferentially distributed drainage hole is provided on the upper part of the guide tube, the sliding sleeve is communicated with the drainage hole on the guide tube, an extrusion frame is fixedly connected to the side of the sliding sleeve away from the guide tube, the circumferentially distributed coarse breaking knives are all extrusion-matched with the extrusion frame, a circumferentially distributed rotating component for driving adjacent coarse breaking knives to twist is provided on the extrusion frame, and a cutting mechanism for cutting materials is provided on the guide tube.

[0008] Preferably, the length of the guide tube is greater than the sum of the length of the lifting shell and the length of the sliding sleeve, so as to enable the lifting shell and the sliding sleeve to move normally.

[0009] Preferably, the rotating assembly includes a telescopic rod, which is fixed to a side of the extrusion frame close to the separation plate, the telescopic rod is connected to the sliding sleeve through a hose, the telescopic end of the telescopic rod is fixed with a push plate, a limiting groove is provided in the extrusion frame, the push plate slides in an adjacent limiting groove on the extrusion frame, an arc-shaped cavity is provided in the extrusion frame, an arc-shaped rack is fixed in the arc-shaped cavity of the extrusion frame, a connecting rod is fixed to the upper part of the coarse breaking knife, the push plate is extruded and matched with the adjacent connecting rod, the extrusion frame is provided with a curved groove, the connecting rod slides in an adjacent curved groove on the extrusion frame, and a gear is fixed to the upper end of the connecting rod, which meshes with the adjacent arc-shaped rack.

[0010] Preferably, the cutting mechanism includes symmetrically distributed connecting rings, which are slidably connected to the guide tubes, and the opposite sides of the symmetrically distributed connecting rings are slidably connected with circumferentially distributed extrusion plates, and the circumferentially distributed extrusion plates are extrusion-fitted with the symmetrically distributed connecting rings, the sliding sleeves and the lifting shells are extrusion-fitted with adjacent connecting rings, the guide tubes are slidably connected with symmetrically distributed sliding rings, the symmetrically distributed sliding rings are located between the symmetrically distributed connecting rings, tension springs are arranged between the symmetrically distributed sliding rings, the circumferentially distributed extrusion plates are extrusion-fitted with the sliding rings, and the sliding rings are fixed with evenly distributed cutting knives.

[0011] Preferably, the extrusion plate is provided with symmetrically distributed inclined surfaces, and the thickness of the middle portion of the extrusion plate is greater than the thickness on both sides thereof, the sliding ring is extruded and matched with the adjacent inclined surfaces on the extrusion plate, and the inclined surfaces of the extrusion plate are used to push the symmetrically distributed sliding rings to separate.

[0012] Preferably, a cleaning mechanism is also included, which is arranged on the second motor and is used to clean the materials adhered in the grinding shell. The cleaning mechanism includes a second electric push rod, which is fixedly connected to the second motor, and a sliding frame is splinedly connected to the transmission shaft. The telescopic end of the second electric push rod is extruded and matched with the sliding frame, and a tension spring is arranged between the sliding frame and the second motor. An extrusion ring is fixedly connected to the side of the sliding frame away from the second motor, and the extrusion ring is slidably connected to the transmission shaft, and the extrusion ring is extruded and matched with the grinding shell. The connecting block is rotatably connected to the grinding shell, and a circumferentially distributed cleaning rod is fixedly connected to the side of the connecting block away from the transmission shaft. The cleaning rod is slidably connected to the grinding shell, and a fixing mechanism for fixing the grinding shell is arranged on the support frame.

[0013] Preferably, the fixing mechanism includes a fixing frame, a supporting frame is provided with symmetrically distributed guide grooves, the fixing frame is slidably connected to the symmetrically distributed guide grooves on the supporting frame, the fixing frame is limitedly matched with the grinding shell, a spring is provided between the fixing frame and the supporting frame, the fixing frame is provided with symmetrically distributed blind holes, a limiting rod is slidably connected in the blind hole, a spring is provided between the limiting rod and the fixing frame, the supporting frame is provided with symmetrically distributed limiting grooves, and the limiting rod is limitedly matched with the adjacent limiting grooves on the supporting frame.

[0014] Compared with the prior art, the present invention has the following advantages: 1. When grinding medicinal materials, the present invention moves the lifting plate upward to tilt the grinding shell, and drives the grinding shell to rotate through the transmission shaft and the connecting block, so that the medicinal materials in the grinding shell are turned over, increasing the degree of disorder of the medicinal materials, avoiding the situation that the medicinal materials cannot be ground around the inner wall of the grinding shell, and coarsely crushing the medicinal materials through the coarse breaking knife during the grinding process, so that the medicinal materials are formed into small particles, thereby accelerating the grinding speed.

[0015] 2. In the present invention, during the grinding process, the push plate squeezes the adjacent connecting rods, and the connecting rods drive the adjacent rough breaking knives to rotate to form an inclined surface, so that the rough breaking knives push the unfinished ground medicinal materials toward the center of the grinding shell during the rotation process, thereby accelerating the grinding speed of the medicinal materials.

[0016] 3. When grinding medicinal materials with fibers, the present invention squeezes the squeezing plate through two connecting rings, and the squeezing plate squeezes the entangled fibers, thereby tightening the fibers. Then, the sliding ring drives the cutting knife to move and cut the fibers, thereby preventing the fibers from being entangled on the guide tube and affecting the normal grinding of the medicinal materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the first electric push rod, the lifting plate and the first motor of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the grinding shell, the separation plate and the lifting shell of the present invention;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating rod, the rotating sleeve and the extrusion block of the present invention;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the guide tube, the sliding sleeve and the extrusion frame of the present invention;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the transmission rod, lifting shell and extrusion block of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the push plate, arc-shaped rack and connecting rod of the present invention;

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the telescopic rod, the push plate and the arc-shaped rack of the present invention;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the guide tube, the connecting ring and the extrusion plate of the present invention;

[0026] Fig.10It is a three-dimensional structural schematic diagram of the connecting ring, the sliding ring and the cutting knife of the present invention;

[0027] Fig.11 It is a three-dimensional structural schematic diagram of the sliding frame, the cleaning rod and the fixed frame of the present invention;

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the second electric push rod, the sliding frame and the extrusion ring of the present invention;

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the transmission shaft, the sliding frame and the extrusion ring of the present invention;

[0030] Fig.14 It is a schematic diagram of the three-dimensional structure of the support frame, the fixing frame and the limiting rod of the present invention.

[0031] Figure numbers: 1-support frame, 2-first electric push rod, 3-lifting plate, 4-first motor, 5-universal shaft, 6-grinding shell, 7-separation plate, 8-transmission rod, 9-lifting shell, 10-rotating frame, 11-rough breaking knife, 12-swing block, 13-second motor, 14-transmission shaft, 15-connecting block, 21-rotating rod, 22-rotating sleeve, 23-extrusion block, 31-guide tube, 32-sliding sleeve, 33-extrusion frame, 41-telescopic rod, 42-push plate, 43-arc rack, 44-connecting rod, 51-connecting ring, 52-extrusion plate, 53-sliding ring, 54-cutting knife, 61-second electric push rod, 62-sliding frame, 63-extrusion ring, 64-cleaning rod, 81-fixed frame, 82-limiting rod. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0033] When grinding medicinal materials, the existing grinding devices generally grind the medicinal materials through high-speed rotating crushing knives. However, in the grinding process, the power for the movement of the medicinal materials is only provided by the force of the crushing knife when grinding the medicinal materials. This part of the force gradually decreases during the transmission process, causing some medicinal materials near the inner wall of the grinding device to be subjected to less force and unable to move and be ground together. In addition, the existing grinding device cannot push the medicinal materials near the inner wall to the vicinity of the crushing knife during the grinding process, resulting in some medicinal materials being unable to be completely ground, resulting in large particles of medicinal materials still existing in the ground medicinal materials, affecting the normal boiling process of the medicinal materials.

[0034] Example 1: A multi-stage grinding device for Chinese herbal medicine slices, referring to Figure 1-Figure 6As shown, it includes a support frame 1, two first electric push rods 2 symmetrically distributed on the left and right are fixedly connected to the lower part of the support frame 1, and the telescopic ends of the two first electric push rods 2 are commonly fixedly connected to a lifting plate 3, and the middle part of the lifting plate 3 is fixedly connected to a first motor 4, and the output shaft of the first motor 4 is provided with a universal shaft 5, and the universal shaft 5 is composed of three sections, the upper, middle and lower sections, wherein the lower section of the universal shaft 5 is fixedly connected to the output shaft of the first motor 4, and the upper section of the universal shaft 5 is rotatably connected to a grinding shell 6, and the universal shaft 5 is used to drive the grinding shell 6 to rotate, so that the grinding The grinding shell 6 is tilted, a feed port is provided at the upper part of the grinding shell 6, a discharge port is provided at the lower part of the grinding shell 6, a separation plate 7 is fixedly connected to the lower part of the grinding shell 6, the discharge port of the grinding shell 6 is communicated with the separation plate 7, a transmission rod 8 is fixedly connected to the upper end of the upper section of the universal shaft 5, a lifting shell 9 is slidably connected to the upper part of the transmission rod 8, the lifting shell 9 is rotatably connected to the separation plate 7, uniformly distributed grinding knives are provided on the outer side of the lifting shell 9, the grinding knives are used to grind medicinal materials, a rotating frame 10 is fixedly connected to the middle part of the lifting shell 9, and the rotating frame 10 is connected to the The separation plate 7 is rotatably connected, and the rotating frame 10 is located on the upper side of the separation plate 7. Four circumferentially distributed rough breaking knives 11 are fixedly connected to the upper side of the rotating frame 10. The rough breaking knives 11 are used to perform preliminary crushing on the medicinal materials, so that the medicinal materials are crushed into small pieces as soon as possible, which is convenient for the grinding knife of the lifting shell 9 to grind the medicinal materials. The rough breaking knife 11 is made of elastic material, and the front side of the rotation direction is provided with an inclined surface facing the center direction of the grinding shell 6. The inclined surface of the rough breaking knife 11 is used to push the medicinal materials toward the center direction of the lifting shell 9 during its rotation, supporting A swing block 12 is ball-jointed at the upper part of the frame 1, and a second motor 13 is fixedly connected to the lower side of the swing block 12. The rotation speed of the output shaft of the second motor 13 is lower than the rotation speed of the output shaft of the first motor 4. The output shaft of the second motor 13 is fixedly connected to a transmission shaft 14, and the transmission shaft 14 is rotatably connected to the grinding shell 6. A connecting block 15 is provided at the upper part of the grinding shell 6, and the transmission shaft 14 is fixedly connected to the connecting block 15. The connecting block 15 is used to drive the grinding shell 6 to rotate, and an adjusting mechanism for driving the lifting shell 9 to move is provided on the lower side of the separation plate 7.

[0035] Reference Figure 3-Figure 6As shown, the adjusting mechanism includes a rotating rod 21, which is rotatably connected to the lower side of the separation plate 7, and the lower side of the separation plate 7 is rotatably connected to a rotating sleeve 22, which is slidably connected to the lifting shell 9, and a missing gear is fixedly connected to the lower part of the rotating sleeve 22. A gear is arranged in the middle part of the rotating rod 21, and the gear is transmission-coordinated with the missing gear on the rotating sleeve 22. The missing gear is used to intermittently drive the rotating rod 21 to rotate through adjacent gears during the rotation of the lifting shell 9. A tension spring is arranged between the lifting shell 9 and the universal shaft 5, and the tension spring is used to drive the lifting shell 9 to move downward and reset. An extrusion block 23 is fixedly connected to the lower part of the rotating rod 21, and the extrusion block 23 is provided with two inclined surfaces symmetrically distributed front and back. The two inclined surfaces of the extrusion block 23 are both extruded and matched with the lifting shell 9. During the rotation of the rotating rod 21, the lifting shell 9 is squeezed upward by the inclined surface of the extrusion block 23, and an extrusion component for compressing the circumferentially distributed coarse breaking knife 11 is arranged on the transmission rod 8.

[0036] Reference Figure 3-Figure 5 As shown, the extrusion assembly includes a guide tube 31, which is filled with hydraulic oil. The guide tube 31 is fixedly connected to and communicated with the upper end of the transmission rod 8. The guide tube 31 is slidably connected to the lifting shell 9. A liquid storage chamber and four liquid inlet holes are provided on the upper part of the transmission rod 8. The liquid storage chamber of the transmission rod 8 is communicated with the lifting shell 9 through the liquid inlet holes. The lifting shell 9 is filled with hydraulic oil. In the process of the lifting shell 9 moving upward, the hydraulic oil in the lifting shell 9 enters the liquid storage chamber therein through the liquid inlet holes on the transmission rod 8. A sliding sleeve 32 is slidably connected to the upper part of the guide tube 31. The length of the guide tube 31 is greater than the sum of the length of the lifting shell 9 and the length of the sliding sleeve 32. It is used to prevent the lifting shell 9 and the sliding sleeve 32 from contacting each other after moving to the extreme position, so as to prevent the two from limiting each other and causing the device to fail to operate normally. The guide tube 31 will slide The sleeve 32 is divided into two upper and lower chambers. The upper part of the guide tube 31 is provided with four circumferentially distributed drainage holes. The sliding sleeve 32 is filled with hydraulic oil. The lower chamber of the sliding sleeve 32 is connected with the drainage holes on the guide tube 31. The hydraulic oil in the liquid storage cavity of the transmission rod 8 enters the lower chamber of the sliding sleeve 32 through the drainage holes of the guide tube 31, so that the sliding sleeve 32 moves downward. An extrusion frame 33 is fixed to the upper side of the sliding sleeve 32. The four rough breaking knives 11 are all extruded and matched with the extrusion frame 33. When the extrusion frame 33 moves downward, the extrusion frame 33 squeezes the upper parts of the four rough breaking knives 11 downward, so that the four rough breaking knives 11 are bent and deformed. Four circumferentially distributed rotating components for driving the adjacent rough breaking knives 11 to twist are provided on the extrusion frame 33, and a cutting mechanism for cutting materials is provided on the guide tube 31.

[0037] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the rotating assembly includes a telescopic rod 41, which is fixed to the lower side of the extrusion frame 33. The telescopic rod 41 is connected to the upper chamber of the sliding sleeve 32 through a hose. When the sliding sleeve 32 moves downward, the hydraulic oil in the upper chamber of the sliding sleeve 32 enters the telescopic rod 41, so that the telescopic end of the telescopic rod 41 extends. The telescopic end of the telescopic rod 41 is fixed to a push plate 42, and the front end of the push plate 42 is deflected to the right relative to the rear end thereof (by Figure 7 The pushing plate 42 is used to push the adjacent connecting rod 44 to move. The extrusion frame 33 is provided with a limited groove, and the push plate 42 is located in the adjacent limited groove on the extrusion frame 33 and slides. The extrusion frame 33 is provided with an arc cavity, and an arc rack 43 is fixedly connected in the arc cavity of the extrusion frame 33. The upper part of the coarse breaking knife 11 is fixedly connected with a connecting rod 44, and the pushing plate 42 is extruded and matched with the adjacent connecting rod 44. The pushing plate 42 is used to push the adjacent connecting rod 44 to move. The extrusion frame 33 is provided with a curved sliding groove, and the connecting rod 44 is located in the adjacent curved sliding groove on the extrusion frame 33 and slides. The upper end of the connecting rod 44 is fixedly connected with a gear, which meshes with the adjacent arc rack 43. When the pushing plate 42 squeezes the adjacent connecting rod 44, the connecting rod 44 slides along the adjacent curved sliding groove on the extrusion frame 33. Under the action of the gear on it, the connecting rod 44 drives the coarse breaking knife 11 to move and twist it, so that the inclined surface of the coarse breaking knife 11 deflects outward, so that the coarse breaking knife 11 gathers the medicinal materials to the center of the grinding shell 6 during the rotation process.

[0038] Reference Figure 4 , Fig. 9 and Fig.10As shown, the cutting mechanism includes two connecting rings 51 symmetrically distributed in the upper and lower parts, the two connecting rings 51 are both slidably connected to the guide tube 31, and the diameters of the facing sides of the two connecting rings 51 are smaller than the diameters of the back sides thereof, the facing sides of the two connecting rings 51 are slidably connected with four circumferentially distributed extrusion plates 52, the sides of the connecting rings 51 are provided with four guide grooves, the extrusion plates 52 are located in adjacent guide grooves and slide, the four extrusion plates 52 are all extruded and matched with the sides of the two connecting rings 51, in the process of the two connecting rings 51 approaching each other, the sides of the connecting rings 51 push the extrusion plates 52 outward, the sliding sleeves 32 and the lifting shells 9 are both extruded and matched with the adjacent connecting rings 51, when the sliding sleeves 32 and the lifting shells 9 approach each other, the sliding sleeves 32 and the lifting shells 9 squeeze the adjacent connecting rings 51, and the sides of the two connecting rings 51 jointly extrude the extrusion plates 52. , so that the extrusion plate 52 moves outward, thereby tightening the wound fibers for easy handling. The guide tube 31 is slidably connected with two sliding rings 53 symmetrically distributed up and down. The two sliding rings 53 are located between the two connecting rings 51. A tension spring is arranged between the two sliding rings 53. The tension spring is initially in a stretched state. The tension spring is used to pull the two sliding rings 53. The extrusion plate 52 is provided with two inclined surfaces symmetrically distributed up and down, and the thickness of the middle part of the extrusion plate 52 is greater than the thickness on both sides thereof. The sliding ring 53 is extruded and matched with the adjacent inclined surfaces on the extrusion plate 52. The two inclined surfaces of the extrusion plate 52 are used to push the two sliding rings 53 to separate. The elastic coefficient of the adjacent tension springs of the lifting shell 9 is greater than the elastic coefficient of the tension spring between the two sliding rings 53, which is used to ensure the reset of the extrusion plate 52. The sliding ring 53 is fixed with evenly distributed cutting knives 54 for cutting the fibers tightened by the extrusion plate 52.

[0039] When the staff uses the device to grind medicinal materials, the staff puts the medicinal materials to be ground into the grinding shell 6 through the feed port on the grinding shell 6. After putting in a suitable amount of medicinal materials, the staff seals the feed port of the grinding shell 6, and then starts the two first electric push rods 2. The telescopic ends of the two first electric push rods 2 jointly drive the lifting plate 3 to move upward, and the lifting plate 3 drives the first motor 4 to move upward, so that the universal shaft 5 deflects to one side (taking the upper end of the universal shaft 5 deflecting to the left as an example, the staff can adjust the deflection direction of the universal shaft 5 according to the actual situation during use). The upper end of the universal shaft 5 drives the lower part of the grinding shell 6 to move leftward, and the lower part of the grinding shell 6 swings leftward with the swing block 12 as the center, thereby causing the parts inside the grinding shell 6 to swing leftward, and the connecting block 15 drives the second motor 13 to swing through the transmission shaft 14, so that the grinding shell 6 and the parts inside it are deflected, until the telescopic end of the first electric push rod 2 is fully extended, the grinding shell 6 stops moving and the adjustment of the device is completed (when describing the movement process of the parts below, for the convenience of understanding and description, the movement direction of the parts is based on the movement direction of the grinding shell 6 when it does not rotate).

[0040] After the grinding shell 6 stops moving, the staff starts the first motor 4 and the second motor 13, and the output shaft of the first motor 4 drives the transmission rod 8 to rotate counterclockwise through the universal shaft 5 ( Figure 1 The transmission rod 8 drives the lifting shell 9 and the guide tube 31 to rotate synchronously, and the lifting shell 9 drives the evenly distributed grinding knives and the rotating frame 10 thereon to rotate synchronously. The grinding knives grind the medicinal materials during the rotation, and the rotating frame 10 drives the four coarse breaking knives 11 thereon to rotate, so that the coarse breaking knives 11 coarsely break the large pieces of medicinal materials during the rotation, so that the medicinal materials are crushed into small particles as soon as possible, which is convenient for the grinding knives to grind the medicinal materials. During this process, the guide tube 31 drives the two connecting rings 51, the two sliding rings 53 and the sliding sleeve 32 to rotate synchronously, and the sliding sleeve 32 drives the extrusion frame 33 and the parts thereon to rotate synchronously.

[0041] After the second motor 13 is started, the output shaft of the second motor 13 drives the transmission shaft 14 to rotate, the transmission shaft 14 drives the connecting block 15 to rotate synchronously, and the connecting block 15 drives the grinding shell 6 to rotate, so that the grinding shell 6 drives the Chinese medicine therein to move, so that the Chinese medicine turns over in the grinding shell 6 as it rotates, to avoid the Chinese medicine being unable to move near the inner wall of the grinding shell 6, causing the grinding knife on the lifting shell 9 to be unable to grind this part of the medicinal materials, resulting in insufficient grinding of the medicinal materials after grinding, affecting the efficiency of boiling the medicinal materials.

[0042] During the rotation of the lifting shell 9, the lifting shell 9 drives the rotating sleeve 22 to rotate, and the rotating sleeve 22 drives the missing gear thereon to rotate, so that the missing gear intermittently drives the gear on the rotating rod 21 to rotate, and then the rotating rod 21 drives the extruding block 23 to rotate clockwise ( Figure 1 The lifting shell 9 is pressed upward by the inclined surface on the rear side of the extrusion block 23, and the lifting shell 9 is pressed upward by the inclined surface on the rear side of the extrusion block 23. The lifting shell 9 drives the parts thereon to move upward and stretch the adjacent tension spring. The lifting shell 9 drives the grinding knife thereon to move upward, so that the hydraulic oil in it enters the liquid storage cavity therein through the liquid inlet hole on the transmission rod 8, and then the hydraulic oil enters the guide tube 31 and is discharged from the liquid discharge hole thereon to the lower cavity of the sliding sleeve 32. The sliding sleeve 32 drives the extrusion frame 33 and the parts thereon to move downward, and the extrusion frame 33 moves downward to extrude the four coarse breaking knives 11, so that the middle parts of the four coarse breaking knives 11 are bent outward and close to the side wall of the grinding shell 6, thereby increasing the crushing range of the coarse breaking knives 11. When the inclined surface on the rear side of the extrusion block 23 is separated from the lifting shell 9, the lifting shell 9 stops moving upward, the sliding sleeve 32 no longer moves downward, and the degree of outward bending of the coarse breaking knives 11 no longer increases, so that the coarse breaking knives 11 crush the medicinal materials close to the inner wall of the grinding shell 6 during the rotation.

[0043] During the downward movement of the extrusion frame 33, the hydraulic oil in the upper chamber of the sliding sleeve 32 enters the four telescopic rods 41 (taking the left telescopic rod 41 as an example), so that the telescopic end of the telescopic rod 41 drives the adjacent push plate 42 to move toward the inner wall of the grinding shell 6. When the push plate 42 contacts the adjacent connecting rod 44, the push plate 42 squeezes the adjacent connecting rod 44, so that the connecting rod 44 drives the adjacent rough breaking knife 11 and the gear to move forward. Under the action of the adjacent arc-shaped rack 43, the gear drives the connecting rod 44 to rotate, and the connecting rod 44 drives the upper part of the adjacent rough breaking knife 11 to twist toward the inner wall of the grinding shell 6 (in a spiral shape after rotation), so that the rough breaking knife 11 pushes the medicinal materials toward the lifting shell 9 during the rotation (similar to the inclined surface pushing the material to move), so that the flow speed of the medicinal materials in the grinding shell 6 increases, thereby increasing the probability of the medicinal materials contacting the grinding knife on the lifting shell 9, and accelerating the speed of the medicinal materials grinding, until the telescopic end of the telescopic rod 41 stops moving and the rough breaking knife 11 stops twisting.

[0044] As the rotating rod 21 drives the extrusion block 23 to continue to rotate, the inclined surface on the rear side of the extrusion block 23 gradually contacts the lifting shell 9, and the extrusion force of the extrusion block 23 on the lifting shell 9 gradually decreases, so that the lifting shell 9 moves downward and resets under the action of the adjacent tension spring, and the lower part of the lifting shell 9 extracts the hydraulic oil in the lower chamber of the sliding sleeve 32 through the transmission rod 8 and the guide tube 31, so that the sliding sleeve 32 drives the extrusion frame 33 to move upward and reset, and the extrusion force of the extrusion frame 33 on the four rough breaking knives 11 is reduced, and the rough breaking knives 11 gradually stretch and reset, until the extrusion block 23 is separated from the lifting shell 9, the lifting shell 9 stops moving and completes the reset, and the sliding sleeve 32 and the parts thereon stop moving. During this process, the hydraulic oil in the four telescopic rods 41 is extracted from the upper chamber of the sliding sleeve 32, and the telescopic rods 41 drive the adjacent push plates 42 to move to the right and reset. The extrusion force of the push plates 42 on the adjacent connecting rods 44 is reduced, and the coarse breaking knife 11 drives the connecting rods 44 to rotate in the opposite direction and reset under the action of its own restoring force, so that the gear on the connecting rods 44 drives it to move and reset along the adjacent arc-shaped racks 43. When the push plates 42 are separated from the adjacent connecting rods 44, the connecting rods 44 stop moving, and the coarse breaking knife 11 is reset. After that, after the extrusion block 23 contacts the lifting shell 9 again, the lifting shell 9 repeats the above process and moves upward to deform the coarse breaking knife 11 and gather the medicinal materials.

[0045] After the medicinal materials are ground, the staff turns off the first motor 4 and the second motor 13, so that the grinding shell 6 and the parts inside it no longer rotate, and the staff starts the first electric push rod 2. The telescopic ends of the two first electric push rods 2 jointly drive the lifting plate 3 to move downward and reset, so that the first motor 4 moves downward and resets, and the output shaft of the first motor 4 pulls the universal shaft 5, and the universal shaft 5 gradually becomes vertical and drives the grinding shell 6 to rotate and reset, so that the grinding shell 6 drives the second motor 13 to swing and reset through the connecting block 15 and the transmission shaft 14, and then the staff takes out the ground medicinal materials.

[0046] When grinding the medicinal material, if the ground medicinal material has long fibers, as the medicinal material is ground, some of the fibers of the medicinal material are wound around the outside of the squeezing plate 52. In the process of the lifting shell 9 and the sliding sleeve 32 approaching each other, the lifting shell 9 and the sliding sleeve 32 squeeze the adjacent connecting rings 51 respectively, so that the two connecting rings 51 approach each other and squeeze the four squeezing plates 52, so that the four squeezing plates 52 move outward, so that the wound fibers are tightened. As the connecting ring 51 moves, the connecting ring 51 pushes the adjacent sliding ring 53 to move synchronously, and the sliding ring 53 drives the cutting knife 54 thereon to move synchronously until the sliding ring 53 and the cutting knife 54 are aligned. After the adjacent inclined surfaces on the extrusion plate 52 are separated, the extrusion plate 52 releases the limit on the sliding ring 53. The two sliding rings 53 approach each other under the action of the adjacent tension springs and drive the cutting knife 54 thereon to move, so that the cutting knife 54 cuts the fibers tightened by the extrusion plate 52 during the movement, thereby preventing the fibers from being entangled on the guide tube 31, causing the lifting shell 9 and the sliding sleeve 32 to be unable to move normally, affecting the normal use of the device, until the tension spring between the two sliding rings 53 is reset, and the sliding ring 53 and the cutting knife 54 thereon stop moving. During this process, when the lifting shell 9 stops moving, the extrusion plate 52 stops moving outward.

[0047] During the resetting process of the above-mentioned lifting shell 9, the extrusion pressure of the sliding sleeve 32 and the lifting shell 9 on the adjacent connecting ring 51 is gradually reduced and drives it to reset. The extrusion plate 52 moves inward and resets under the drive of the adjacent connecting ring 51. During this process, the inclined surface of the extrusion plate 52 squeezes the two sliding rings 53. The two sliding rings 53 drive the cutting knives 54 thereon to reset and stretch the adjacent tension springs. After the lifting shell 9 is reset, the connecting ring 51 and the sliding ring 53 are reset and stop moving. Then, when the lifting shell 9 rises, the above process is repeated to clean the fibers again.

[0048] When the existing device is grinding medicinal materials, some of the medicinal materials will adhere to the inner wall of the device. In order to prevent the residual powder in the device from mixing with the subsequently ground medicinal materials, resulting in the ground medicinal materials being unable to be used normally, the staff needs to clean the side wall before performing the next grinding, resulting in the device being unable to perform continuous grinding work, affecting the efficiency of medicinal material grinding.

[0049] Embodiment 2: Based on embodiment 1, Figure 11-13As shown, a cleaning mechanism is also included, which is arranged on the second motor 13 and is used to clean the medicinal materials adhered to the grinding shell 6. The cleaning mechanism includes a second electric push rod 61, which is fixedly connected to the right side of the second motor 13. The transmission shaft 14 is splined with a sliding frame 62. The telescopic end of the second electric push rod 61 is extruded and matched with the sliding frame 62. The telescopic end of the second electric push rod 61 is used to push the sliding frame 62 to move downward. A tension spring is arranged between the sliding frame 62 and the second motor 13. The tension spring is used to drive the sliding frame 62 to move upward and reset. The lower side of the sliding frame 62 is fixedly connected with an extrusion ring 63, which extrudes The ring 63 is slidably connected to the transmission shaft 14, and the extrusion ring 63 is extruded and matched with the grinding shell 6. After the sliding frame 62 moves downward, the extrusion ring 63 squeezes the upper part of the grinding shell 6, so that the grinding shell 6 rotates synchronously with the output shaft of the second motor 13. The connecting block 15 is rotatably connected to the grinding shell 6. Four circumferentially distributed cleaning rods 64 are fixedly connected to the lower side of the connecting block 15. The cleaning rods 64 are slidably connected to the grinding shell 6. After the extrusion ring 63 is separated from the grinding shell 6, the connecting block 15 drives the four cleaning rods 64 to rotate relative to the grinding shell 6 to clean the medicinal materials adhered to the grinding shell 6. A fixing mechanism for fixing the grinding shell 6 is provided on the support frame 1.

[0050] Reference Fig.11 and Fig.14 As shown, the fixing mechanism includes a fixing frame 81, and the support frame 1 is provided with two guide grooves symmetrically distributed on the left and right. The fixing frame 81 is slidably connected to the support frame 1, and the fixing frame 81 is located in the two guide grooves of the support frame 1. The fixing frame 81 is limitedly matched with the grinding shell 6, and the fixing frame 81 squeezes the grinding shell 6 so that the grinding shell 6 cannot move, so as to avoid the grinding shell 6 rotating during loading and discharging, which affects the normal loading and discharging. A spring is provided between the fixing frame 81 and the support frame 1, and the fixing frame 81 is provided with left and right symmetrical There are two blind holes distributed, in which a limit rod 82 is slidably connected. A spring is arranged between the limit rod 82 and the fixed frame 81, and the spring is initially in a compressed state. The lower parts of the two guide grooves on the support frame 1 are provided with limit grooves, and the limit rod 82 is limitedly matched with the adjacent limit grooves on the support frame 1. After the fixed frame 81 moves to the lower part of the guide groove, the limit rod 82 enters the limit groove, making the fixed frame 81 unable to move, thereby avoiding the fixed frame 81 from moving and limiting the grinding shell 6 during the grinding process, affecting the normal grinding.

[0051] After the addition of the medicinal materials is completed as mentioned above, the staff pushes the fixing frame 81 downward, and the fixing frame 81 is separated from the grinding shell 6, thereby releasing the limit on the grinding shell 6 and allowing the grinding shell 6 to rotate. As the fixing frame 81 moves downward along the guide groove of the support frame 1, the fixing frame 81 compresses the adjacent spring and moves to drive the two limit rods 82 to move downward. When the fixing frame 81 moves to the lower part of the guide groove, the staff stops pushing the fixing frame 81, and the two limit rods 82 stop moving. At this time, the limit rod 82 is coaxial with the adjacent limit groove on the support frame 1. The limit rod 82 enters the limit groove under the push of the adjacent spring to limit the fixing frame 81, avoiding the fixing frame 81 from contacting the grinding shell 6 again during the grinding of the medicinal materials, thereby affecting the normal grinding of the medicinal materials by the device.

[0052] After the above-mentioned fixed frame 81 is limited, the staff starts the second electric push rod 61, and the telescopic end of the second electric push rod 61 squeezes the sliding frame 62 downward. The sliding frame 62 stretches the adjacent tension spring and drives the adjacent extrusion ring 63 to move downward. The extrusion ring 63 moves downward and gradually approaches the grinding shell 6 until the extrusion ring 63 contacts the grinding shell 6. The staff then closes the second electric push rod 61. At this time, the extrusion ring 63 squeezes and limits the grinding shell 6, so that when the telescopic end of the second motor 13 rotates, the grinding shell 6 is driven to rotate synchronously through the extrusion ring 63. After that, the staff starts the first electric push rod 2, and the lifting plate 3 drives the first motor 4 to move upward, so that the universal joint 5 drives the grinding shell 6 to deflect again, and then starts the first motor 4 and the second motor 13 to grind the medicinal materials.

[0053] In the above-mentioned process of grinding medicinal materials, the transmission shaft 14 drives the sliding frame 62 to rotate through the spline, the sliding frame 62 drives the extrusion ring 63 to rotate, and the extrusion ring 63 drives the grinding shell 6 to rotate synchronously to flip the medicinal materials. The transmission shaft 14 drives the four cleaning rods 64 to rotate synchronously with the grinding shell 6 through the connecting block 15 to avoid the cleaning rods 64 from rotating relative to the grinding shell 6 for a long time, causing the cleaning rods 64 to wear and affect the fit between the cleaning rods 64 and the grinding shell 6. When the medicinal materials are ground, the staff will turn on and off the electrical components.

[0054] After the above-mentioned medicinal material grinding is completed and the lifting plate 3 is reset, the staff pushes the fixed frame 81 upward, and the fixed frame 81 drives the two limit rods 82 to move upward. The limit rods 82 are squeezed by the adjacent limit grooves on the support frame 1, so that the limit rods 82 are gradually retracted into the fixed frame 81 and compress the adjacent springs. When the limit rods 82 are separated from the adjacent limit grooves on the support frame 1, the limit rods 82 release the limit on the fixed frame 81, and the fixed frame 81 moves upward under the push of the adjacent springs and limits the grinding shell 6 again to avoid the grinding shell 6 rotating when taking materials, affecting the collection of medicinal materials.

[0055] When the medicinal materials in the grinding shell 6 are collected, the staff starts the second electric push rod 61. The telescopic end of the second electric push rod 61 moves upward to reduce the squeezing force on the sliding frame 62. The sliding frame 62 drives the squeezing ring 63 to move upward under the action of the adjacent tension spring, so that the squeezing ring 63 is separated from the grinding shell 6 and the limit of the grinding shell 6 is released. Then the staff starts the second motor 13 and the first motor 4 again. The output shaft of the second motor 13 drives the four cleaning rods 64 to rotate synchronously through the transmission shaft 14 and the connecting block 15. The cleaning rod 64 rotates relative to the grinding shell 6, so that the inclined surface on it scrapes and cleans the medicinal material powder adhered to the inner wall of the grinding shell 6 to avoid the residual medicinal materials in the grinding shell 6 from mixing with the medicinal materials to be ground next time, affecting the use of the ground medicinal materials. In this process, the lifting shell 9 drives the rotating frame 10 to rotate, so that the rotating frame 10 cleans the upper side of the separation plate 7, and pushes the medicinal materials scraped by the four cleaning rods 64 out of the discharge port during the cleaning process. After the cleaning is completed, the staff turns off the second motor 13.

[0056] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A multi-stage grinding device for Chinese herbal medicine slices, comprising a support frame (1), a first electric push rod (2) being fixedly connected to the lower part of the support frame (1), a lifting plate (3) being fixedly connected to the telescopic end of the first electric push rod (2), and a first motor (4) being fixedly connected to the lifting plate (3), wherein: The invention also comprises a universal shaft (5), wherein the universal shaft (5) is arranged on the output shaft of the first motor (4), the end of the universal shaft (5) away from the lifting plate (3) is rotatably connected to a grinding shell (6), a side of the grinding shell (6) close to the universal shaft (5) is fixedly connected to a separation plate (7), the end of the universal shaft (5) away from the lifting plate (3) is fixedly connected to a transmission rod (8), the transmission rod (8) is slidably connected to a lifting shell (9) rotatably connected to the separation plate (7), the outer side of the lifting shell (9) is provided with uniformly distributed grinding knives, the lifting shell (9) is fixedly connected to a rotating frame (10), and the rotating frame (10) is fixedly connected to the lifting plate (3). 0) is rotatably connected to the separation plate (7), a side of the rotating frame (10) away from the separation plate (7) is fixedly connected with circumferentially distributed rough breaking knives (11), an upper ball joint is provided with a swing block (12), a lower side of the swing block (12) is fixedly connected with a second motor (13), an output shaft of the second motor (13) is fixedly connected with a transmission shaft (14) rotatably connected to the grinding shell (6), the grinding shell (6) is provided with a connecting block (15) fixedly connected with the transmission shaft (14), and an adjusting mechanism for driving the lifting shell (9) to move is provided on a side of the separation plate (7) close to the universal shaft (5); The transmission rod (8) is provided with an extrusion assembly for compressing the circumferentially distributed rough breaking knives (11); the extrusion assembly includes a guide tube (31), the guide tube (31) is fixedly connected to and communicated with an end of the transmission rod (8) away from the universal shaft (5), the guide tube (31) is slidably connected to the lifting shell (9), the transmission rod (8) is provided with a liquid storage cavity and a liquid inlet hole, the liquid storage cavity of the transmission rod (8) is communicated with the lifting shell (9) through the liquid inlet hole, and the side of the guide tube (31) away from the lifting shell (9) is slidably connected to A sliding sleeve (32), the upper part of the guide tube (31) is provided with circumferentially distributed drainage holes, the sliding sleeve (32) is communicated with the drainage holes on the guide tube (31), a side of the sliding sleeve (32) away from the guide tube (31) is fixedly connected to an extrusion frame (33), the circumferentially distributed rough breaking knives (11) are all extruded and matched with the extrusion frame (33), the extrusion frame (33) is provided with circumferentially distributed rotating components for driving the adjacent rough breaking knives (11) to twist, and the guide tube (31) is provided with a cutting mechanism for cutting materials; The rotating assembly comprises a telescopic rod (41), the telescopic rod (41) being fixedly connected to a side of the extrusion frame (33) close to the separation plate (7), the telescopic rod (41) being connected to the sliding sleeve (32) via a hose, the telescopic end of the telescopic rod (41) being fixedly connected to a push plate (42), a limiting groove being provided in the extrusion frame (33), the push plate (42) being located in an adjacent limiting groove on the extrusion frame (33) and sliding, and an arc is provided in the extrusion frame (33). The extrusion frame (33) has an arc-shaped cavity, an arc-shaped rack (43) is fixedly connected in the arc-shaped cavity of the extrusion frame (33), a connecting rod (44) is fixedly connected to the upper part of the rough breaking knife (11), the push plate (42) is extruded and matched with the adjacent connecting rod (44), the extrusion frame (33) is provided with a curved slide groove, the connecting rod (44) is located on the extrusion frame (33) and slides in the adjacent curved slide groove, and a gear is fixedly connected to the upper end of the connecting rod (44), and the gear is meshed with the adjacent arc-shaped rack (43).

2. A multi-stage grinding device for Chinese herbal medicine slices according to claim 1, characterized in that: The roughing knife (11) is made of an elastic material and has an inner side provided with an inclined surface facing the center direction of the grinding shell (6) so as to enable the roughing knife (11) to push the material toward the center direction of the lifting shell (9) during rotation.

3. A multi-stage grinding device for Chinese herbal medicine slices according to claim 1, characterized in that: The adjustment mechanism comprises a rotating rod (21), the rotating rod (21) being rotatably connected to a side of the separation plate (7) close to the universal shaft (5), the side of the separation plate (7) close to the universal shaft (5) being rotatably connected to a rotating sleeve (22), the rotating sleeve (22) being slidably connected to the lifting shell (9), the rotating sleeve (22) being fixedly connected to a missing gear, the rotating rod (21) being provided with a gear, the gear being transmission-matched with the missing gear on the rotating sleeve (22), a tension spring being provided between the lifting shell (9) and the universal shaft (5), the lower part of the rotating rod (21) being fixedly connected to an extrusion block (23), the extrusion block (23) being extrusion-matched with the lifting shell (9).

4. A multi-stage grinding device for Chinese herbal medicine slices according to claim 3, characterized in that: The length of the guide tube (31) is greater than the sum of the length of the lifting shell (9) and the length of the sliding sleeve (32), and is used to enable the lifting shell (9) and the sliding sleeve (32) to move normally.

5. A multi-stage grinding device for Chinese herbal medicine slices according to claim 4, characterized in that: The cutting mechanism comprises symmetrically distributed connecting rings (51), the symmetrically distributed connecting rings (51) are all slidably connected to the guide tube (31), the symmetrically distributed connecting rings (51) facing each other are slidably connected with circumferentially distributed extrusion plates (52), and the circumferentially distributed extrusion plates (52) are all extrusion-matched with the symmetrically distributed connecting rings (51), the sliding sleeve (32) and the lifting shell (9) are extrusion-matched with adjacent connecting rings (51), the guide tube (31) is slidably connected with symmetrically distributed sliding rings (53), the symmetrically distributed sliding rings (53) are located between the symmetrically distributed connecting rings (51), tension springs are arranged between the symmetrically distributed sliding rings (53), the circumferentially distributed extrusion plates (52) are all extrusion-matched with the sliding rings (53), and the sliding rings (53) are fixedly connected with uniformly distributed cutting knives (54).

6. A multi-stage grinding device for Chinese herbal medicine slices according to claim 5, characterized in that: The extrusion plate (52) is provided with symmetrically distributed inclined surfaces, and the thickness of the middle portion of the extrusion plate (52) is greater than the thickness of the two sides thereof. The sliding ring (53) is extruded and matched with the adjacent inclined surfaces on the extrusion plate (52), and the inclined surfaces of the extrusion plate (52) are used to push the symmetrically distributed sliding rings (53) to separate.

7. A multi-stage grinding device for Chinese herbal medicine slices according to claim 1, characterized in that: The invention also includes a cleaning mechanism, which is arranged on the second motor (13) and is used to clean the materials adhered to the grinding shell (6). The cleaning mechanism includes a second electric push rod (61), which is fixed to the second motor (13). The transmission shaft (14) is spline-connected with a sliding frame (62). The telescopic end of the second electric push rod (61) is pressed and matched with the sliding frame (62). A tension spring is arranged between the sliding frame (62) and the second motor (13). The sliding frame (62) is connected to the second motor (13). 2) A squeeze ring (63) is fixedly connected to the side away from the second motor (13), the squeeze ring (63) is slidably connected to the transmission shaft (14), the squeeze ring (63) is squeezed and matched with the grinding shell (6), the connecting block (15) is rotatably connected to the grinding shell (6), a circumferentially distributed cleaning rod (64) is fixedly connected to the side of the connecting block (15) away from the transmission shaft (14), the cleaning rod (64) is slidably connected to the grinding shell (6), and a fixing mechanism for fixing the grinding shell (6) is provided on the support frame (1).

8. A multi-stage grinding device for Chinese herbal medicine slices according to claim 7, characterized in that: The fixing mechanism comprises a fixing frame (81), the support frame (1) is provided with symmetrically distributed guide grooves, the fixing frame (81) is slidably connected to the symmetrically distributed guide grooves on the support frame (1), the fixing frame (81) is limitedly matched with the grinding shell (6), a spring is provided between the fixing frame (81) and the support frame (1), the fixing frame (81) is provided with symmetrically distributed blind holes, a limiting rod (82) is slidably connected in the blind hole, a spring is provided between the limiting rod (82) and the fixing frame (81), the support frame (1) is provided with symmetrically distributed limiting grooves, and the limiting rod (82) is limitedly matched with adjacent limiting grooves on the support frame (1).

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