Drug grinding device and method for chemical research of natural drugs

Abstract

The present invention discloses a drug grinding device and method for chemical research of natural medicines, belonging to the technical field of grinding devices. A drug grinding device for chemical research of natural medicines includes a cylinder, and also includes: a protective shell and a sliding bin are respectively provided on the side walls of the cylinder, and a material discharge port is connected above the sliding bin; a transition cavity is connected below the cylinder, and a grinding outer wall is connected below the transition cavity; a first driving part is fixed to the top of the cylinder, and a rotating shaft is fixedly connected to the output end of the first driving part; a push block slides inside the sliding bin; a limiting groove is provided at the lower end of the rotating shaft, and a first limiting block slides in the limiting groove, and a rotating grinding head is fixedly connected below the first limiting block; a second adjusting bolt is inserted into the rotating grinding head and the first limiting block, and the second adjusting bolt is connected to the rotating shaft through a thread; the present invention can crush and grind medicines of different volumes, and improve the subsequent fine grinding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a drug grinding device and method for chemical research of natural drugs. Background Art

[0002] The purpose of grinding the medicine is not only to make it better mixed with other medicines, but also to change the shape of the medicine so that it can be re-formed into pills, tablets and other products that can be used as medicines. Therefore, a grinding device is needed.

[0003] However, existing grinding devices generally use the weight of the medicine to perform autonomous falling grinding, and some medicines are large in size and cannot be effectively ground by a single grinding device. A preliminary crushing process is required before grinding, and the processing process is complicated and troublesome, the grinding efficiency is low, and the medicine is easily lost and wasted during the crushing and transportation process. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a drug grinding device and method for chemical research of natural drugs.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A drug grinding device for chemical research of natural medicines, comprising a cylinder, and further comprising: a protective shell and a sliding bin are respectively provided on the side walls of the cylinder, a material discharge port is connected to the top of the sliding bin, and a first slide groove is provided on the side where the protective shell and the sliding bin are connected; a transition chamber is connected to the bottom of the cylinder, and a grinding outer wall is fixedly connected to the bottom of the transition chamber; a first driving part is fixed to the top of the cylinder, and a rotating shaft is fixedly connected to the output end of the first driving part; a crushing grinding disc and a first gear are fixedly connected to the rotating shaft; a reduction gear is inserted into the lower end surface of the top of the cylinder, the first gear is meshed with the reduction gear, and a first bevel gear is fixedly connected to the bottom of the reduction gear through a rotating shaft; a first transmission shaft is fixed to the reduction bevel gear, and the first A second bevel tooth is fixed to the other end of the transmission shaft; two second transmission shafts are inserted into the upper end of the protective shell, and a third bevel tooth is fixed to the second transmission shaft close to the second bevel tooth, and the third bevel tooth is meshed with the second bevel tooth; a transmission gear and a half-tooth gear are fixed on the two second transmission shafts, the two transmission gears are meshed, and the tooth surfaces of the two half-tooth gears are opposite; a push block is sliding inside the sliding warehouse, and a rack is fixed on the push block, and the rack is meshed with the half-tooth gear; a limiting groove is provided at the lower end of the rotating shaft, and a first limiting block slides in the limiting groove, and a rotating grinding head is fixedly connected below the first limiting block; a second adjusting bolt is inserted into the rotating grinding head and the first limiting block, and the second adjusting bolt is connected to the rotating shaft through a thread.

[0007] Preferably, the side wall of the cylinder is connected to a cleaning chamber, and first adjusting bolts are inserted into the side walls on both sides of the cleaning chamber through threaded grooves, and a clamping plate is inserted into the end of the first adjusting bolt.

[0008] Preferably, a support frame is fixedly connected to the transition chamber, a box body is fixed to the bottom end of the support frame, and a pouring port is opened on the box body.

[0009] Furthermore, a second sliding groove and a third sliding groove are respectively provided on the box body, a second limiting block is slidably provided on the second sliding groove, and a knocking rod is slidably provided on the third sliding groove.

[0010] Furthermore, a screening frame is fixedly connected between the two second limit blocks, and two ends of the screening frame are connected to the knocking rod through a rotating shaft.

[0011] Furthermore, a support rod is fixed on the side wall of the screening frame, and a spring is connected between the support rod and the knocking rod.

[0012] Furthermore, a second driving unit is fixed on the side wall of the box, and a rotating wheel is fixedly connected to the output end of the second driving unit. A connecting rod is connected to the rotating wheel via a rotating shaft, and the other end of the connecting rod is connected to the side wall of the box via a rotating shaft. A third limit block is fixed on the screening frame, and a filter screen is provided under the screening frame, and T-shaped blocks are fixed at both ends of the filter screen.

[0013] Furthermore, a limiting plate is fixed in the box body, a material storage drawer is slidably arranged on the limiting plate, and a locking groove is provided on the inner wall of the box body.

[0014] Furthermore, guide grooves are provided on both sides of the material storage drawer, a lock groove is provided on the inner wall of the material storage drawer, a lock bar is plugged into the material storage drawer via a rotating shaft, and the lock bar is connected to a lock rod via a rotating shaft.

[0015] Preferably, a drug grinding method for natural drug chemical research comprises the following steps:

[0016] S1. Prepare the medicine to be ground;

[0017] S2, putting the medicine to be ground into the feeding port;

[0018] S3, start the device, the grinding disc grinds the medicine, and the rotating grinding head grinds the medicine finely;

[0019] S4. The ground medicine falls out from the bottom of the rotating grinding head, and the ground medicine is collected.

[0020] Compared with the prior art, the present invention provides a drug grinding device and method for chemical research of natural drugs, which has the following beneficial effects:

[0021] 1. The drug grinding device and method for the chemical research of natural medicines realizes reciprocating motion of the push block through the transmission gear set during the grinding process, so that the medicine inside the feed port can be pushed to the crushing grinding disc, and then the crushing grinding disc can initially crush and grind the medicine, which is convenient for improving the subsequent fine grinding efficiency.

[0022] 2. The drug grinding device and method for chemical research of natural medicines can adjust the gap between the rotating grinding head and the grinding outer wall by rotating the second adjusting bolt, so that the grinding accuracy can be adjusted to meet different grinding requirements.

[0023] 3. The drug grinding device and method for the chemical research of natural medicines drives the screening frame and the boiler net to perform reciprocating screening motion through the second driving part, so that the ground drug powder can be screened to avoid that some drugs do not reach the grinding accuracy.

[0024] 4. The drug grinding device and method for the chemical research of natural medicines drives the knocking rod to knock the support frame through the movement of the screening frame, thereby causing the cylindrical part to vibrate slightly, which helps the drug to fall and avoids the accumulation of ground drug powder to block the grinding port.

[0025] The parts not involved in the drug grinding device and method for chemical research of natural medicines are the same as the existing technology or can be implemented by using the existing technology. The present invention can crush and grind medicines of different volumes, which is convenient for improving the subsequent fine grinding efficiency, can adjust the grinding accuracy, can screen the ground drug powder, and can prevent the ground drug powder from accumulating and blocking the grinding port. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a drug grinding device and method for chemical research of natural drugs proposed by the present invention;

[0027] Figure 2 A cross-sectional view of a drug grinding device and method for chemical research of natural drugs proposed by the present invention;

[0028] Figure 3 The invention provides a drug grinding device and method for the chemical research of natural drugs Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 4 The invention provides a drug grinding device and method for the chemical research of natural drugs Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 5 This is the structural intention of the transmission component part of a drug grinding device and method for chemical research of natural drugs proposed by the present invention;

[0031] Figure 6 This is a schematic structural diagram of a cleaning chamber portion in a drug grinding device and method for chemical research of natural drugs proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the screening component part of a drug grinding device and method for chemical research of natural drugs proposed by the present invention;

[0033] Figure 8 A drug grinding device and method for chemical research of natural drugs proposed by the present invention Figure 7 The structural diagram of the enlarged portion D in the middle;

[0034] Fig. 9 A drug grinding device and method for chemical research of natural drugs proposed by the present invention Figure 7 The enlarged structural diagram of part C in the middle;

[0035] Fig.10 This is a schematic diagram of the structure inside the box of a drug grinding device and method for chemical research of natural drugs proposed by the present invention;

[0036] Fig.11 This is a schematic structural diagram of a material storage drawer in a drug grinding device and method for chemical research of natural drugs proposed by the present invention.

[0037] In the figure: 1, cylinder; 11, transition chamber; 12, discharge port; 13, grinding outer wall; 14, first driving part; 15, support frame; 16, cleaning chamber; 161, first adjusting bolt; 162, clamping plate; 17, crushing grinding disc; 18, rotating shaft; 21, push block; 22, sliding chamber; 23, first slide groove; 24, rack; 31, protective shell; 32, first gear; 33, reduction gear; 331, first bevel gear; 34, reduction bevel gear; 341, second bevel gear; 342, first transmission shaft; 35, third bevel gear; 351, transmission gear; 352, half-tooth gear; 36, second transmission shaft ;41. Rotating grinding head;42. Second adjusting bolt;43. First limiting block;44. Limiting groove;45. Discharging port;51. Box body;52. Limiting plate;53. Locking groove;61. Screening frame;62. Second driving part;621. Rotating wheel;622. Connecting rod;63. Second limiting block;631. Second sliding groove;64. Third limiting block;65. Filter screen;66. Locking rod;661. Locking block;651. T-block;67. Knocking rod;671. Third sliding groove;672. Support rod;673. Spring;71. Storage drawer;72. Guide groove;73. Locking bar;74. Locking rod. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Reference Figure 1-Figure 11, including a cylinder 1, and also including: a protective shell 31 and a sliding bin 22 are respectively opened on the side walls of the cylinder 1, a feed port 12 is connected above the sliding bin 22, and a first chute 23 is opened on the side where the protective shell 31 and the sliding bin 22 are connected; a transition chamber 11 is connected below the cylinder 1, and a grinding outer wall 13 is fixedly connected below the transition chamber 11; a first driving part 14 is fixed on the top of the cylinder 1, and a rotating shaft 18 is fixedly connected to the output end of the first driving part 14; a crushing grinding disc 17 and a first gear 32 are fixedly connected to the rotating shaft 18; a reduction gear 33 is inserted into the lower end surface of the top of the cylinder 1, the first gear 32 is meshed with the reduction gear 33, and a first bevel gear 331 is fixedly connected to the reduction gear 33 through a rotating shaft; a first transmission shaft 342 is fixed on the reduction bevel gear 34, and a second bevel gear 331 is fixedly connected to the other end of the first transmission shaft 342 41; two second transmission shafts 36 are inserted into the upper end of the protective shell 31, and the second transmission shaft 36 close to the second bevel gear 341 is fixed with a third bevel gear 35, and the third bevel gear 35 is meshed with the second bevel gear 341; a transmission gear 351 and a half-tooth gear 352 are fixed on the two second transmission shafts 36, the two transmission gears 351 are meshed, and the tooth surfaces of the two half-tooth gears 352 are opposite; a push block 21 is slid inside the sliding warehouse 22, and a rack 24 is fixed on the push block 21, and the rack 24 is meshed with the half-tooth gear 352; a limiting groove 44 is provided at the lower end of the rotating shaft 18, and a first limiting block 43 is slid in the limiting groove 44, and a rotating grinding head 41 is fixedly connected below the first limiting block 43; a second adjusting bolt 42 is inserted into the rotating grinding head 41 and the first limiting block 43, and the second adjusting bolt 42 is connected to the rotating shaft 18 by a thread.

[0041] In the present invention, the protective shell 31 is mainly used to protect and support the transmission component. A support plate is provided inside the protective shell 31 to support the first transmission shaft 342. The reduction gear 33 and the reduction bevel gear 34 are used to reduce the speed of the transmission component to prevent the transmission component from rotating too fast at the end, causing the push block 21 to move too fast, so that the speed of the crushing grinding disc 17 to crush the medicine cannot keep up with the feeding speed of the push block 21, thereby causing damage to the transmission component.

[0042] The connection between the push block 21 and the rack 24 slides on the first slide groove 23, so that the push block 21 can move along the track of the first slide groove 23, and the two transmission gears 351 are meshed with each other so that the rotation directions of the two transmission gears 351 are opposite, thereby driving the two half-tooth gears 352 to rotate in opposite directions. The teeth on the two half-tooth gears 352 are just opposite, so that when one half-tooth gear 352 is meshed with the rack 24, the other half-tooth gear 352 will not affect the movement of the rack 24, so that the two half-tooth gears 352 can generate two thrusts in opposite directions on the rack 24, so that the rack 24 can drive the push block 21 to reciprocate.

[0043] When the push block 21 moves to a position flush with the inner wall of the cylinder 1, it is the farthest position that the push block 21 moves. At this time, the end of the push block 21 can just block the outlet of the discharge port 12, thereby preventing the medicine from scattering to the rear of the push block 21 and being unable to be cleaned up. When the push block 21 retreats to a position where its front end is staggered from the discharge port 12, it is the farthest distance that the push block 21 can retreat. At this time, the medicine can fall from the discharge port 12 and wait for the push and squeeze of the push block 21.

[0044] The inclination angle of the rotating grinding head 41 is smaller than the inclination angle of the grinding outer wall 13, so that when the rotating grinding head 41 descends, the gap between the rotating grinding head 41 and the grinding outer wall 13 increases, and the powder particles ground are larger. When the rotating grinding head 41 rises, the gap between the rotating grinding head 41 and the grinding outer wall 13 decreases and eventually closes, and the powder particles ground are also finer. This adjustment operation can be completed by turning the second adjusting bolt 42 at the bottom. The user can also clean or replace the rotating grinding head 41 by removing the second adjusting bolt 42.

[0045] Blades or protrusions can be provided on the side wall of the grinding disc 17 to increase the grinding efficiency. A certain distance is left between the grinding disc 17 and the inner wall of the cylinder 1 so that the ground medicine can directly fall to the rotating grinding head 41 .

[0046] Reference Figure 1-Figure 11 The side wall of the cylinder 1 is connected with a cleaning bin 16, and the side walls on both sides of the cleaning bin 16 are plugged with first adjusting bolts 161 through threaded grooves, and the ends of the first adjusting bolts 161 are plugged with clamps 162. The transition chamber 11 is fixedly connected with a support frame 15, and a box body 51 is fixed at the bottom end of the support frame 15. The box body 51 is provided with a pouring port 45, and the box body 51 is respectively provided with a second slide groove 631 and a third slide groove 671. A second limit block 63 slides on the second slide groove 631, and a knocking rod 67 slides on the third slide groove 671. A screening frame 61 is fixedly connected between the two second limit blocks 63, and both ends of the screening frame 61 are connected to the knocking rod 67 through a rotating shaft. A support rod 672 is fixed on the side wall of the screening frame 61, and a spring 673 is connected between the support rod 672 and the knocking rod 67. A second driving part 62 is fixed on the side wall of the box body 51, and the output end of the second driving part 62 is fixedly connected to a rotating wheel 621. A connecting rod 622 is connected to the rotating wheel 621 through a rotating shaft, and the other end of the connecting rod 622 is connected to the side wall of the box body 51 through a rotating shaft. A third limiting block 64 is fixed on the screening frame 61, and a filter screen 65 is provided below the screening frame 61. T-shaped blocks 651 are fixed at both ends of the filter screen 65. A locking rod 66 is connected to the side wall of the screening frame 61 through a rotating shaft, and a locking block 661 is fixed to the side wall of the screening frame 61.

[0047] In the present invention, the clamping plate 162 can clamp cleaning tools such as a brush or cotton wool, so that when the grinding disc 17 rotates, the cleaning tool can clean and brush off the medicine powder attached to the grinding disc 17 to avoid waste of medicine. The user can adjust the width between the two clamping plates 162 by rotating the first adjusting bolts 161 on both sides.

[0048] The second limit block 63 slides on the second slide groove 631, thereby limiting the screening frame 61. A pulley can be set at the contact position between the upper end of the second limit block 63 and the box body 51 to reduce the loss caused by friction between the two. The second driving part 62 drives the rotating wheel 621 and the connecting rod 622 to move, and then the screening frame 61 and the filter screen 65 can be pulled to perform reciprocating screening, thereby completing the work of screening the ground medicinal powder.

[0049] A T-shaped groove is provided on the third limit block 64, so that the filter screen 65 can be plugged into the third limit block 64 through the T-shaped block 651 and the filter screen 65 can be locked by rotating the locking rod 66 after the plugging is completed to prevent the filter screen 65 from slipping out during the screening movement. By replacing the filter screen 65, powders of different precisions can be screened.

[0050] During the screening movement, the knocking rod 67 will collide and knock with the support frame 15, thereby generating a small vibration to the device, causing the powder to fall smoothly. The spring 673 supports and cushions the knocking rod 67 to avoid damage to the knocking rod 67 due to too fast movement. The knocking part of the knocking rod 67 can be made of a material such as hard rubber to avoid excessive noise caused by knocking. The knocking rod 67 is connected to the screening frame 61 by a rotating shaft, so that the knocking rod 67 can rotate in a small range to avoid the fixed connection from breaking during the knocking process.

[0051] Reference Figure 1-Figure 11 A limit plate 52 is fixed in the box body 51, and a storage drawer 71 is slidably arranged on the limit plate 52. A lock groove 53 is provided on the inner wall of the box body 51, and guide grooves 72 are provided on both sides of the storage drawer 71. A lock groove 53 is provided on the inner wall of the storage drawer 71. The storage drawer 71 is connected with a lock bar 73 through a rotating shaft, and the lock bar 73 is connected with a lock rod 74 through a rotating shaft.

[0052] In the present invention, the limit plate 52 is matched with the guide groove 72 through the protrusion thereon, so that the storage drawer 71 can slide on the limit plate 52, and the locking bar 73 and the locking rod 74 are connected by a rotating shaft and plugged into the storage drawer 71, so that the user can rotate the locking rod 74 from the outside to drive the locking bar 73 to rotate together. When the storage drawer 71 needs to be locked, the locking rod 74 can be rotated to an oblique upper direction, and the locking bar 73 can slide to the upper end under the guidance of the locking groove 53 to lock the storage drawer 71.

[0053] Reference Figure 1-Figure 11 In the present invention, a drug grinding method for chemical research of natural drugs comprises the following steps:

[0054] S1. The user prepares the medicine to be ground in advance, installs the filter 65, the cleaning tool in the cleaning bin 16, and the storage drawer 71, and adjusts the second adjusting bolt 42 according to the required grinding accuracy;

[0055] S2, putting the medicine to be ground into the feed port 12, the medicine will fall above the push block 21 and accumulate inside the pipe of the feed port 12;

[0056] S3, start the device, drive the gear set to rotate through the first driving part 14, and the push block 21 reciprocates in the sliding bin 22 and pushes the falling medicine and the grinding disc 17 to grind the medicine in each movement. After the grinding is completed, the medicine will fall to the rotating grinding head 41 for fine grinding;

[0057] S4, the ground medicine falls out from the bottom of the rotating grinding head 41 and falls onto the filter screen 65 through the pouring port 45 for filtration and screening. The screened medicine automatically falls into the storage drawer 71 for collection.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drug grinding device for chemical research of natural drugs, comprising a cylinder (1), characterized in that: Also includes: A protective shell (31) and a sliding bin (22) are respectively provided on the side walls of the cylinder (1); a material discharge port (12) is communicated with the top of the sliding bin (22); and a first slide groove (23) is provided on a surface where the protective shell (31) and the sliding bin (22) meet. The cylinder (1) is connected to a transition chamber (11) below, a grinding outer wall (13) is fixedly connected to the transition chamber (11) below, a first driving part (14) is fixed to the top of the cylinder (1), and a rotating shaft (18) is fixedly connected to the output end of the first driving part (14); The rotating shaft (18) is fixedly connected to a grinding disc (17) and a first gear (32); A reduction gear (33) is inserted into the lower end surface of the top of the cylinder (1), the first gear (32) is meshed with the reduction gear (33), and a first bevel gear (331) is fixedly connected to the lower side of the reduction gear (33) via a rotating shaft; A first transmission shaft (342) is fixed on the deceleration bevel gear (34), and a second bevel gear (341) is fixed on the other end of the first transmission shaft (342); Two second transmission shafts (36) are plugged into the upper end of the protective shell (31); a third bevel tooth (35) is fixed to the second transmission shaft (36) near the second bevel tooth (341); the third bevel tooth (35) is meshed with the second bevel tooth (341); A transmission gear (351) and a half-tooth gear (352) are fixed on each of the two second transmission shafts (36); the two transmission gears (351) are meshed with each other, and the tooth surfaces of the two half-tooth gears (352) are opposite to each other; A push block (21) is slidably disposed inside the sliding bin (22), a rack (24) is fixed to the push block (21), and the rack (24) is meshed with a half-toothed gear (352); A limiting groove (44) is provided at the lower end of the rotating shaft (18), a first limiting block (43) is slidably disposed in the limiting groove (44), and a rotating grinding head (41) is fixedly connected below the first limiting block (43); A second adjusting bolt (42) is inserted into the rotating grinding head (41) and the first limiting block (43), and the second adjusting bolt (42) is connected to the rotating shaft (18) through a thread; A support frame (15) is fixedly connected to the transition chamber (11), a box body (51) is fixed to the bottom end of the support frame (15), and a material discharge port (45) is provided on the box body (51); The box body (51) is respectively provided with a second slide groove (631) and a third slide groove (671); a second limit block (63) slides on the second slide groove (631); and a knocking rod (67) slides on the third slide groove (671); A screening frame (61) is fixedly connected between the two second limit blocks (63), and both ends of the screening frame (61) are connected to a knocking rod (67) via a rotating shaft, so that the knocking rod (67) is driven by the movement of the screening frame (61) to knock the support frame (15).

2. A drug grinding device for chemical research of natural drugs according to claim 1, characterized in that: The side wall of the cylinder (1) is connected to a cleaning chamber (16), and first adjusting bolts (161) are inserted into the side walls on both sides of the cleaning chamber (16) through threaded grooves, and a clamping plate (162) is inserted into the end of the first adjusting bolt (161).

3. A drug grinding device for chemical research of natural drugs according to claim 1, characterized in that: A support rod (672) is fixed on the side wall of the screening frame (61), and a spring (673) is connected between the support rod (672) and the knocking rod (67).

4. A drug grinding device for chemical research of natural drugs according to claim 3, characterized in that: A second driving unit (62) is fixed to the side wall of the box body (51); an output end of the second driving unit (62) is fixedly connected to a rotating wheel (621); a connecting rod (622) is connected to the rotating wheel (621) via a rotating shaft; the other end of the connecting rod (622) is connected to the side wall of the box body (51) via a rotating shaft; a third limiting block (64) is fixed to the screening frame (61); a filter screen (65) is provided below the screening frame (61); and T-shaped blocks (651) are fixed to both ends of the filter screen (65).

5. A drug grinding device for chemical research of natural drugs according to claim 1, characterized in that: A limiting plate (52) is fixed in the box body (51), a material storage drawer (71) is slidably disposed on the limiting plate (52), and a locking groove (53) is provided on the inner wall of the box body (51).

6. A drug grinding device for chemical research of natural drugs according to claim 5, characterized in that: Guide grooves (72) are provided on both sides of the material storage drawer (71), a lock groove (53) is provided on the inner wall of the material storage drawer (71), a lock bar (73) is plugged into the material storage drawer (71) via a rotating shaft, and the lock bar (73) is connected to a lock rod (74) via a rotating shaft.

7. The grinding method of a drug grinding device for chemical research of natural drugs according to claim 1, characterized in that: The main steps include: S1. Prepare the medicine to be ground; S2, placing the medicine to be ground into the feed port (12); S3, starting the device, the grinding disc (17) grinds the medicine, and the rotating grinding head (41) finely grinds the medicine; S4: The ground medicine falls out from below the rotating grinding head (41), and the ground medicine is collected.

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