CN116213248A

CN116213248A - Hierarchical processing apparatus of traditional chinese medicine granule

Info

Publication number: CN116213248A
Application number: CN202310506951.5A
Authority: CN
Inventors: 姜国栋; 刘伟; 李亚文; 张大印; 李红娇
Original assignee: Liuhe Changlong Pharmaceutical Co ltd
Current assignee: Liuhe Changlong Pharmaceutical Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-06-06
Anticipated expiration: 2043-05-08
Also published as: CN116213248B

Abstract

The invention relates to the technical field of screening devices, in particular to a traditional Chinese medicine granule grading treatment device. A Chinese medicinal granule grading treatment device comprises a supporting cylinder, a bottom bin, a screening bin and a screening mechanism, wherein the screening mechanism comprises a screening cylinder, a screening plate assembly, a telescopic frame assembly and a plurality of vibrating blocks. The screen plate assembly includes an inner screen plate, a middle screen plate and an outer screen plate. The expansion bracket component is arranged in the screening cylinder and is positioned below the screening plate component, and the expansion bracket component comprises an inner expansion bracket, an outer expansion bracket and a plurality of expansion rods. The driving mechanism is used for driving the bottom bin and the screening bin to move, so that the traditional Chinese medicine performs external expansion involute movement on the screening plate assembly. The invention provides a traditional Chinese medicine granule grading treatment device, which aims to solve the problem that the screening vibration effect of the traditional screening device is poor.

Description

Hierarchical processing apparatus of traditional chinese medicine granule

Technical Field

The invention relates to the technical field of screening devices, in particular to a traditional Chinese medicine granule grading treatment device.

Background

The rotary vibration sieve is a high-precision fine powder sieving machine, has low noise and high efficiency, takes 3-5 minutes for quick net replacement, has a fully-closed structure, and is suitable for sieving and filtering materials such as particles, powder and the like. The rotary vibration sieve is characterized by that it uses vertical motor as vibration source, and the upper and lower ends of the motor are equipped with eccentric weights, so that the rotary motion of the motor can be converted into three-dimensional motion of horizontal, vertical and oblique, and then said motion can be transferred into the sieve surface so as to make the material implement external expansion involute motion on the sieve surface. The phase angles of the upper end and the lower end are adjusted, so that the movement track of the material on the screen surface can be changed.

After the rotary vibrating screen is started, the power device, namely eccentric blocks with different phases at the upper end and the lower end of the vibrating motor, generates a compound inertia force due to the high-speed placement effect, the inertia force forces the vibrating body of the screen to do the reciprocating motion, the screen frame continuously reciprocates under the action of the vibration force, and further drives the screen surface to do the periodic vibration, so that the materials on the screen surface do the directional jump motion along with the screen box, during the directional jump motion, the materials smaller than the aperture of the screen surface fall to the lower layer through the screen holes to become the undersize materials, and the materials larger than the aperture of the screen surface are discharged from the discharge port after the continuous jump motion, and finally the screening work is completed. The motion track of the vibrating object of the rotary vibrating screen is a complex space three-dimensional curve, the projection of the curve on a horizontal plane is circular, and the projections on two vertical planes are identical ellipses. In practical application, the motion track of the materials on the screen surface can be changed by adjusting the relative phases of the eccentric blocks at the upper end and the lower end of the vibrating motor, so that the purposes of different screening operations are achieved.

When the traditional Chinese medicine granule is manufactured, the traditional Chinese medicine is usually screened firstly, and the traditional Chinese medicine is classified according to the size of the cut pieces.

For example, the chinese patent of patent publication No. CN111530739B provides a device for classifying and treating traditional Chinese medicine particles, when screening, the traditional Chinese medicine on the filter screen is mainly concentrated at the edge after screening, and the traditional Chinese medicine distribution is uneven when screening, so that the effect of screening vibration is poor, and the screening efficiency is affected.

Disclosure of Invention

The invention provides a traditional Chinese medicine granule grading treatment device, which aims to solve the problem that the screening vibration effect of the traditional screening device is poor. The invention relates to a traditional Chinese medicine granule grading treatment device which adopts the following technical scheme: a device for classifying and treating Chinese medicinal granule comprises a supporting cylinder, a bottom bin, a screening bin and a screening mechanism. The screening bin, the bottom bin and the supporting cylinder are sequentially arranged from top to bottom, the screening mechanism is arranged in the screening bin, and each screening mechanism comprises a screening cylinder, a screening plate assembly, a telescopic frame assembly and a plurality of vibrating blocks. The screening section of thick bamboo is fixed to be set up in screening storehouse, and a plurality of first screening holes have been seted up to screening section of thick bamboo's bottom.

The screen plate assembly includes an inner screen plate, a middle screen plate and an outer screen plate. The inner layer screening plate, the middle screening plate and the outer screening plate are sequentially arranged in the screening cylinder from inside to outside, the inner layer screening plate, the middle screening plate and the outer screening plate are concentric with the screening cylinder, the inner layer screening plate, the middle screening plate and the outer screening plate can move up and down, and a plurality of second screening holes are formed in the inner layer screening plate, the middle screening plate and the outer screening plate.

The expansion bracket component is arranged in the screening cylinder and is positioned below the screening plate component, and the expansion bracket component comprises an inner expansion bracket, an outer expansion bracket and a plurality of expansion rods. The inlayer expansion bracket sets up in the inboard of outer expansion bracket, and a plurality of telescopic links are along the circumference equipartition of screening section of thick bamboo, and every telescopic link radially extends along the screening section of thick bamboo, and the inner fixed connection of telescopic link is in the inlayer expansion bracket, and the outer fixed connection of telescopic link is in outer expansion bracket. The vibrating blocks can be movably arranged between the inner layer expansion bracket and the outer layer expansion bracket.

The driving mechanism is used for driving the bottom bin and the screening bin to move, so that the traditional Chinese medicine performs external expansion involute movement on the screening plate assembly. In the process, the inner telescopic frame and the outer telescopic frame expand or contract according to the concentrated range of the traditional Chinese medicine, and then the vibrating block is moved to the concentrated position of the traditional Chinese medicine.

Further, the driving mechanism comprises a vibrating motor and a plurality of vibrating springs, the vibrating motor is arranged in the supporting cylinder, the upper end of the vibrating motor is propped against the bottom of the bottom bin, the upper end of each vibrating spring is fixedly connected with the bottom bin, the lower end of each vibrating spring is fixedly connected with the supporting cylinder, and the vibrating springs are uniformly distributed along the circumference of the supporting cylinder.

Further, the inner layer expansion bracket comprises two first connecting units, a plurality of first vertical rods and a plurality of balancing weights. The two first connecting units are arranged up and down in sequence and are fixedly connected through a plurality of vertically arranged first vertical rods.

Each first connecting unit comprises a plurality of first hinging rods and a plurality of second hinging rods, the first hinging rods and the second hinging rods are all V-shaped, and openings of the first hinging rods and the second hinging rods face the circle center of the inner screening plate. The first hinging rods are hinged end to end in sequence, the second hinging rods are hinged end to end in sequence, the bending points of the first hinging rods and the second hinging rods are rotationally arranged on a first vertical rod, and each balancing weight is fixedly arranged on the first vertical rod.

Further, the outer layer expansion bracket comprises two second connecting units, a plurality of second vertical rods, a plurality of third vertical rods and a plurality of contraction springs. The two second connecting units are arranged up and down in sequence and fixedly connected with each other through a plurality of vertically arranged second vertical rods and third vertical rods.

Each second connecting unit comprises a plurality of third hinging rods and a plurality of fourth hinging rods, the third hinging rods and the fourth hinging rods are all V-shaped, and openings of the third hinging rods and the fourth hinging rods face the circle center of the inner screening plate. The head end of each third hinging rod and the tail end of the adjacent third hinging rod are rotatably arranged on one second vertical rod, the head end of each fourth hinging rod and the tail end of the adjacent fourth hinging rod are rotatably arranged on one second vertical rod, and the head end of each fourth hinging rod and the tail end of the adjacent fourth hinging rod are sequentially hinged. The bending point of each third hinging rod and the bending point of each fourth hinging rod are rotatably arranged on one third vertical rod. The distance between the third vertical rod and the center of the inner layer screening plate is greater than that between the second vertical rod and the center of the inner layer screening plate. The shrinkage spring is arranged horizontally, and two ends of the shrinkage spring are respectively and fixedly connected to two adjacent second vertical rods.

Further, a first limiting rod is arranged at the joint between the head end of the first hinging rod and the tail end of the adjacent first hinging rod. The distance between the first limiting rod and the center of the inner screening plate is smaller than that between the first vertical rod and the center of the inner screening plate. The joint of the head end of the third hinging rod and the tail end of the adjacent third hinging rod is provided with a second limiting rod, and the distance between the second limiting rod and the center of the inner screening plate is greater than that between the third vertical rod and the center of the inner screening plate. The upper end of the second limiting rod is an inclined plane, and the inclined plane is gradually far away from the circle center of the filter screen support column along the direction from top to bottom.

The inner end and the outer end of the lower side surface of the inner layer screening plate are respectively fixedly provided with a first limiting ring and a second limiting ring. The inner end and the outer end of the lower side surface of the middle screening plate are respectively fixedly provided with a third limiting ring and a fourth limiting ring. The inner end and the outer end of the lower side surface of the outer layer screening plate are respectively fixedly provided with a fifth limiting ring and a sixth limiting ring. In the initial state, the first limiting rod is positioned at the inner side of the first limiting ring at the inner end, and the second limiting rod is positioned at the outer side of the sixth limiting ring at the outer end.

Further, a filter screen supporting column is vertically arranged on the screening bin. The telescopic frame assembly further comprises a driving unit, the driving unit comprises a first reset cylinder and a second reset cylinder, one end of the second reset cylinder is fixedly connected to the screening bin, and the other end of the second reset cylinder is fixedly connected to a third vertical rod. One end fixed connection of first cylinder that resets is in the filter screen support column, and the other end fixed connection of first cylinder that resets is on first montant.

Further, a first annular groove is formed in the filter screen support column along the circumferential direction of the filter screen support column. The inner layer screening plate, the middle screening plate and the outer layer screening plate are all annular.

The inner side of the inner layer screening plate can be arranged in the first annular groove in a vertical sliding mode, and the outer side wall of the inner layer screening plate is provided with a second annular groove.

The inside wall and the outside wall of middle screening board are fixed respectively and are provided with first baffle ring and second baffle ring, and first baffle ring and second baffle ring all extend along the circumference of middle screening board. The first baffle ring can be arranged in the second annular groove in an up-and-down moving way.

The inner side wall of the outer layer screening plate is provided with a third annular groove, and the second baffle ring can be arranged in the third annular groove in an up-and-down moving manner. The screening cylinder is provided with a fourth annular groove along the circumferential direction of the screening cylinder, and the outer side of the outer screening plate can be arranged in the fourth annular groove in an up-and-down moving manner.

Further, a plurality of first mounting holes have been seted up to the inboard of inlayer screening board, have seted up a plurality of second mounting holes and a plurality of third mounting holes on first fender ring and the second fender ring respectively, and a plurality of fourth mounting holes have been seted up to the outside of outer screening board, and a plurality of first mounting holes, a plurality of second mounting holes, a plurality of third mounting holes and a plurality of fourth mounting holes all are along screening cylinder's circumference equipartition.

The screen plate assembly further includes a plurality of first spacing units, a plurality of second spacing units, a plurality of third spacing units, and a plurality of fourth spacing units. The first limiting units are arranged in the first annular grooves, and each first limiting unit comprises a first limiting column and two first springs. Each first limiting column is fixedly arranged in a first annular groove and in a first mounting hole, two first springs are sleeved on the first limiting columns and are positioned at the upper end and the lower end of the inner layer screening plate, one end of each first spring is fixedly connected to the inner wall of the first annular groove, and the other end of each first spring is fixedly connected to the inner layer screening plate.

The second limiting units are arranged in the second annular grooves, and each second limiting unit comprises a second limiting column and two second springs. Each second limiting column is fixedly arranged in the second annular groove and in one second mounting hole, two second springs are sleeved on the second limiting columns and positioned at the upper end and the lower end of the first baffle ring at the inner side, one end of each second spring is fixedly connected to the inner wall of the second annular groove, and the other end of each second spring is fixedly connected to the first baffle ring.

The third limiting units are arranged in the third annular grooves, and each third limiting unit comprises a third limiting column and two third springs. Each third limiting column is fixedly arranged in a third annular groove and in a third mounting hole, two third springs are sleeved on the third limiting columns and are positioned at the upper end and the lower end of the second baffle ring, one end of each third spring is fixedly connected to the inner wall of the third annular groove, and the other end of each third spring is fixedly connected to the second baffle ring.

The fourth limiting units are arranged in the fourth annular grooves, and each fourth limiting unit comprises a fourth limiting column and two fourth springs. Each fourth limiting column is fixedly arranged in a fourth annular groove and in a fourth mounting hole, two fourth springs are sleeved on the fourth limiting columns and are positioned at the upper end and the lower end of the outer layer screening plate, one end of each fourth spring is fixedly connected to the inner wall of the fourth annular groove, and the other end of each fourth spring is fixedly connected to the outer layer screening plate.

Further, a plurality of connecting pipes are fixedly arranged on the inner layer screening plate, the middle screening plate and the outer layer screening plate, and the connecting pipes are vertically arranged. The screening plate assembly further comprises a plurality of connecting rods and a plurality of supporting springs, the plurality of connecting rods are uniformly distributed along the circumference of the screening bin, each connecting rod extends along the radial direction of the screening bin, and one end of each connecting rod is fixedly connected to the screening bin. A plurality of spliced poles are fixedly arranged on each connecting rod, the spliced poles are vertically arranged, the plurality of spliced poles are uniformly distributed along the length direction of the connecting rod, and each spliced pole is slidingly arranged in the connecting pipe along the vertical direction. Each supporting spring is arranged in one connecting pipe, the upper end of each supporting spring is fixedly connected with the connecting column, and the lower end of each supporting spring is fixedly connected with the inner wall of the connecting pipe.

Further, a top cover is fixedly arranged on the screening bin, and a feed inlet is formed in the middle of the top cover. A discharge hole is formed in the peripheral walls of the screening bin and the bottom bin, a discharge bin is arranged at each discharge hole, and one end of each discharge bin is fixedly connected to the peripheral wall of the screening bin. The discharge port on the screening bin is positioned above the screening plate assembly. The bottom bin is internally provided with a guide curved surface, the middle part of the guide curved surface is higher than the periphery of the guide curved surface, and the discharge hole of the bottom bin is positioned at the periphery of the guide curved surface.

The beneficial effects of the invention are as follows: according to the traditional Chinese medicine granule grading treatment device, when traditional Chinese medicine is graded and screened, according to the traditional Chinese medicine distribution conditions on the inner layer screening plate, the middle screening plate and the outer layer screening plate, the inner layer expansion frame and the outer layer expansion frame expand or contract, the vibrating blocks are concentrated at the traditional Chinese medicine stacking positions, sufficient vibration effect is provided for the traditional Chinese medicine, uneven traditional Chinese medicine distribution is prevented, the vibration effect is insufficient, and screening efficiency is affected.

In addition, in the screening process, traditional chinese medicine gradually moves to outer screening board from the inlayer screening board, inlayer expansion bracket and outer expansion bracket promote the vibrating piece along with traditional chinese medicine removes for traditional chinese medicine moving speed increases, and ejection of compact speed accelerates.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a device for classifying and treating traditional Chinese medicine particles according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a device for classifying and treating Chinese medicinal particles according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a screening bin of a device for classifying Chinese medicinal particles according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a screening mechanism of a device for classifying and treating traditional Chinese medicine particles according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a screening mechanism of a device for classifying treatment of Chinese medicinal particles according to an embodiment of the present invention;

fig. 6 is an initial schematic diagram of a telescopic frame assembly of a device for classifying Chinese medicinal particles according to an embodiment of the present invention;

FIG. 7 is an enlarged view at A in FIG. 6;

Fig. 8 is a schematic structural view of a screening mechanism of a device for classifying Chinese medicine particles according to an embodiment of the present invention, in which Chinese medicine moves to an outer layer screening plate;

fig. 9 is a schematic structural view of a screening mechanism of a device for classifying Chinese medicine particles according to an embodiment of the present invention, in which Chinese medicine moves to a middle screening plate;

fig. 10 is a schematic structural view of a telescopic frame assembly of a device for classifying and treating traditional Chinese medicine particles according to an embodiment of the present invention;

FIG. 11 is a schematic view of a part of the screening mechanism of a device for classifying and treating traditional Chinese medicine particles according to an embodiment of the present invention;

FIG. 12 is a cross-sectional view of FIG. 11;

FIG. 13 is an enlarged view at B in FIG. 12;

FIG. 14 is an enlarged view of FIG. 12 at C;

fig. 15 is an enlarged view of D in fig. 12;

FIG. 16 is an enlarged view of FIG. 12 at E;

fig. 17 is a schematic structural view of a screening plate assembly of a device for classifying treatment of chinese medicine particles according to an embodiment of the present invention;

fig. 18 is a cross-sectional view of fig. 17.

In the figure: 101. discharging the material bin; 102. a support cylinder; 103. a vibration motor; 104. a vibration spring; 106. a screening bin; 107. a top cover; 108. a feed inlet; 200. a screening mechanism; 201. a second reset cylinder; 202. a connecting rod; 203. a discharge port; 204. a vibrating block; 205. a filter screen support column; 2051. a first ring groove; 2052. a first spring; 206. a first reset cylinder; 210. an inner layer screening plate; 211. a connecting pipe; 212. a first stop collar; 213. a second ring groove; 214. a support spring; 215. a first limit post; 216. a second limiting ring; 220. a middle screening plate; 221. a connecting column; 222. a third limiting ring; 224. a fourth stop collar; 230. an outer layer screening plate; 232. a fifth stop collar; 233. a third ring groove; 234. a sixth limiting ring; 240. a sieving cylinder; 241. a fourth ring groove; 242. a first screening aperture; 250. an outer layer expansion bracket; 251. a second limit rod; 252. a retraction spring; 253. a telescopic rod; 260. an inner layer expansion bracket; 261. balancing weight; 262. a first stop lever; 270. a second screening aperture;

400. A bottom bin; 401. a guide curved surface; 402. a mounting groove; 501. a first hinge lever; 502. a second hinge lever; 505. a first vertical rod; 601. a third articulation bar; 602. a fourth hinge lever; 603. a second vertical rod; 604. a third vertical rod; 701. a first mounting hole; 702. a second mounting hole; 703. a third mounting hole; 704. a fourth mounting hole; 705. a first baffle ring; 706. a second baffle ring; 801. the second limit column; 802. a second spring; 803. the third limit column; 804. a third spring; 805. a fourth limit column; 806. and a fourth spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 18, an embodiment of the present invention provides a device for classifying chinese medicine particles, comprising a support cylinder 102, a bottom bin 400, a sieving bin 106 and a sieving mechanism 200. The supporting cylinder 102 is arranged on the ground, the screening bin 106, the bottom bin 400 and the supporting cylinder 102 are sequentially arranged from top to bottom, and the screening bin 106 and the bottom bin 400 can rotate relative to the bottom bin 400.

Screening mechanisms 200 are disposed within screening bin 106, each screening mechanism 200 including a screening cartridge 240, a screening plate assembly, a telescoping rack assembly, and a plurality of vibrating masses 204. The screening cylinder 240 is horizontally arranged, the screening cylinder 240 is fixedly arranged in the screening bin 106, and a plurality of first screening holes 242 are formed in the bottom of the screening cylinder 240. The screen plate assembly includes an inner screen plate 210, a middle screen plate 220, and an outer screen plate 230. The inner layer screening plate 210, the middle screening plate 220 and the outer layer screening plate 230 are sequentially arranged in the screening cylinder 240 from inside to outside, the inner layer screening plate 210, the middle screening plate 220 and the outer layer screening plate 230 are all concentric with the screening cylinder 240, the inner layer screening plate 210, the middle screening plate 220 and the outer layer screening plate 230 can move up and down, a plurality of second screening holes 270 are formed in the inner layer screening plate 210, the middle screening plate 220 and the outer layer screening plate 230, and the aperture of the first screening holes 242 is larger than that of the second screening holes 270.

The telescoping rack assembly is disposed within the screen cylinder 240 below the screen plate assembly and includes an inner telescoping rack 260, an outer telescoping rack 250, and a plurality of telescoping rods 253. The inner expansion bracket 260 is disposed at the inner side of the outer expansion bracket 250, and both the inner expansion bracket 260 and the outer expansion bracket 250 can expand and contract. The plurality of telescopic rods 253 are uniformly distributed along the circumference of the screening cylinder 240, each telescopic rod 253 extends along the radial direction of the screening cylinder 240, the inner ends of the telescopic rods 253 are fixedly connected to the inner telescopic frames 260, and the outer ends of the telescopic rods 253 are fixedly connected to the outer telescopic frames 250. A plurality of mounting grooves 402 are formed in the bottom of the screening cylinder 240, the mounting grooves 402 extend along the radial direction of the screening cylinder 240, the plurality of mounting grooves 402 are uniformly distributed along the circumferential direction of the screening cylinder 240, and the telescopic rod 253 is slidably arranged in the mounting grooves 402.

The vibrating blocks 204 are vertically arranged, and among the plurality of vibrating blocks 204, a part of the vibrating blocks 204 are movably arranged in the inner layer telescopic frames 260, a part of the vibrating blocks 204 are movably arranged in the outer layer telescopic frames 250, and another part of the vibrating blocks 204 are movably arranged between the inner layer telescopic frames 260 and the outer layer telescopic frames 250.

The drive mechanism is used to drive the bottom bin 400 and the screening bin 106 to move, thereby causing the traditional Chinese medicine to perform an outward expanding involute movement on the screening plate assembly. In this process, the inner and

outer expansion brackets

260 and 250 expand or contract according to the concentrated range of the Chinese medicine, and thus the vibration block 204 is moved to the concentrated position of the Chinese medicine, thereby screening the Chinese medicine more rapidly.

In this embodiment, as shown in fig. 2, the driving mechanism includes a vibration motor 103 and a plurality of vibration springs 104, the vibration motor 103 is disposed in the support cylinder 102, the upper end of the vibration motor 103 abuts against the bottom of the bottom bin 400, the upper end of each vibration spring 104 is fixedly connected to the bottom bin 400, the lower end of each vibration spring 104 is fixedly connected to the support cylinder 102, and the plurality of vibration springs 104 are uniformly distributed along the circumferential direction of the support cylinder 102. Eccentric weights are arranged at the upper end and the lower end of the vibration motor 103, the rotation motion of the vibration motor 103 is converted into three-dimensional motion of horizontal, vertical and inclined, and the motion is transmitted to the screening plate assembly, so that the traditional Chinese medicine performs external expansion involute motion on the screening plate assembly.

In this embodiment, as shown in fig. 2 and 10, the inner telescopic frame 260 includes two first connection units, a plurality of first vertical rods 505 and a plurality of balancing weights 261. The two first connecting units are arranged up and down in sequence and are fixedly connected through a plurality of vertically arranged first vertical rods 505.

Each first connection unit comprises a plurality of first hinge rods 501 and a plurality of second hinge rods 502, the first hinge rods 501 and the second hinge rods 502 are all V-shaped, and openings of the first hinge rods 501 and the second hinge rods 502 face the circle center of the inner screening plate 210. The first hinge rods 501 are hinged end to end in sequence, the second hinge rods 502 are hinged end to end in sequence, and the bending points of the first hinge rods 501 and the bending points of the second hinge rods 502 are rotatably arranged on a first vertical rod 505. The inner layer expansion bracket 260 is ring-shaped, and the inner layer expansion bracket 260 can be contracted and expanded.

Each balancing weight 261 is fixedly arranged on one first vertical rod 505. Due to the vibration motor 103, the balancing weight 261 has a tendency to move outwards, and when the inner telescopic frame 260 is not limited, the balancing weight 261 can drive the inner telescopic frame 260 to expand outwards.

In this embodiment, as shown in fig. 10, the outer telescopic frame 250 includes two second connection units, a plurality of second vertical rods 603, a plurality of third vertical rods 604, and a plurality of retraction springs 252. The two second connecting units are sequentially arranged up and down, and the two second connecting units are fixedly connected with the third vertical rod 604 through a plurality of second vertical rods 603 which are vertically arranged.

Each second connecting unit comprises a plurality of third hinging rods 601 and a plurality of fourth hinging rods 602, the third hinging rods 601 and the fourth hinging rods 602 are all V-shaped, and openings of the third hinging rods 601 and the fourth hinging rods 602 face to the circle center of the inner screening plate 210. The third hinging rods 601 are sequentially hinged end to end, the head end of each third hinging rod 601 and the tail end of the adjacent third hinging rod 601 are rotatably arranged on one second vertical rod 603, the fourth hinging rods 602 are sequentially hinged end to end, and the head end of each fourth hinging rod 602 and the tail end of the adjacent fourth hinging rod 602 are rotatably arranged on one second vertical rod 603. The bending point of each third hinge rod 601 and the bending point of each fourth hinge rod 602 are rotatably disposed on one third vertical rod 604. The third vertical bar 604 is spaced from the center of the inner screen plate 210 by a greater distance than the second vertical bar 603 is spaced from the center of the inner screen plate 210. The shrinkage spring 252 is horizontally arranged, and two ends of the shrinkage spring 252 are respectively and fixedly connected to two adjacent second vertical rods 603. The outer expansion bracket 250 is ring-shaped, and the outer expansion bracket 250 can be contracted and expanded. When the outer telescopic frame 250 is not limited, the shrinkage spring 252 can drive the outer telescopic frame 250 to shrink inwards.

In this embodiment, as shown in fig. 10 and 17, a first stopper rod 262 is provided at a connection between the head end of the first hinge rod 501 and the tail end of the adjacent first hinge rod 501. The first stop bar 262 is spaced a smaller distance from the center of the inner screen plate 210 than the first vertical bar 505 is spaced from the center of the inner screen plate 210. A second limit rod 251 is arranged at the joint of the head end of the third hinging rod 601 and the tail end of the adjacent third hinging rod 601, and the distance between the second limit rod 251 and the center of the inner layer screening plate 210 is greater than the distance between the third vertical rod 604 and the center of the inner layer screening plate 210. The upper end of the second limiting rod 251 is an inclined plane, and the inclined plane is gradually far away from the center of the filter screen support column 205 along the direction from top to bottom.

The inner and outer ends of the underside of the inner screen plate 210 are fixedly provided with a first stop collar 212 and a second stop collar 216, respectively. The inner and outer ends of the lower side of the middle screening plate 220 are fixedly provided with a third stop collar 222 and a fourth stop collar 224, respectively. The inner and outer ends of the lower side of the outer screening plate 230 are fixedly provided with fifth and sixth stop rings 232 and 234, respectively. In the initial state, the first stop lever 262 is located inside the first stop collar 212 at the inner end, and the second stop lever 251 is located outside the sixth stop collar 234 at the outer end. Because the upper end of the second stop lever 251 is inclined, when the outer expansion bracket 250 expands outwards, the second stop lever 251 breaks through the limitation of the first stop ring 212, the second stop ring 216, the third stop ring 222, the fourth stop ring 224, the fifth stop ring 232 and the sixth stop ring 234.

The width between the first stop collar 212 and the second stop collar 216, the width between the third stop collar 222 and the fourth stop collar 224, and the width between the fifth stop collar 232 and the sixth stop collar 234 are the same. The telescopic rod 253 can be telescopic, the first limiting rod 262 is positioned on the inner side of the first limiting ring 212 at the inner end, and the second limiting rod 251 is positioned on the outer side of the second limiting ring 216 at the outer end, so that the minimum shortening distance of the telescopic rod 253 is achieved.

In this embodiment, as shown in fig. 5, 6, 7 and 10, the screening bin 106 is vertically provided with screen support columns 205. The expansion bracket assembly further comprises a driving unit, the driving unit comprises a first reset cylinder 206 and a second reset cylinder 201, one end of the second reset cylinder 201 is fixedly connected to the screening bin 106, and the other end of the second reset cylinder 201 is fixedly connected to a third vertical rod 604. One end of the first reset cylinder 206 is fixedly connected to the filter screen supporting column 205, and the other end of the first reset cylinder 206 is fixedly connected to the first vertical rod 505.

In the initial state, as shown in fig. 2, 6, 7, 10 and 17, the inner expansion bracket 260 is contracted to the minimum and the outer expansion bracket 250 is expanded to the maximum by the first and

second reset cylinders

206 and 201, the first and

second stopper rods

262 and 251 are positioned at the inner and outer sides of the first and sixth stopper rings 212 and 234, respectively. The first reset cylinder 206 and the second reset cylinder 201 do not limit the inner telescopic frame 260 and the outer telescopic frame 250 any more while the vibration motor 103 is started. After the traditional Chinese medicines on the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230 are discharged, the first reset cylinder 206 and the second reset cylinder 201 are started to pull the inner telescopic frame 260 and the outer telescopic frame 250 back to the initial positions, and the materials are discharged again.

In this embodiment, as shown in fig. 4, 12, 13, 14, 15 and 16, the first ring groove 2051 is formed in the screen support column 205 along the circumferential direction thereof. The inner screening plate 210, the middle screening plate 220 and the outer screening plate 230 are all annular.

The inner side of the inner screen plate 210 is slidably disposed in the first annular groove 2051, and the outer side wall of the inner screen plate 210 is provided with the second annular groove 213. The inner and outer side walls of the intermediate screening plate 220 are fixedly provided with a first stop ring 705 and a second stop ring 706, respectively. The first blocking ring 705 is disposed in the second ring groove 213 to be movable up and down. The inner side wall of the outer layer screening plate 230 is provided with a third annular groove 233, and the second baffle ring 706 is disposed in the third annular groove 233 in a vertically movable manner. The inner side wall of the screening cylinder 240 is provided with a fourth annular groove 241 along the circumferential direction thereof, and the outer side of the outer screening plate 230 is disposed in the fourth annular groove 241 so as to be movable up and down. The inner screening plate 210, the middle screening plate 220 and the outer screening plate 230 are movable up and down with respect to each other.

In this embodiment, as shown in fig. 4, 12, 13, 14, 15 and 16, a plurality of first mounting holes 701 are formed on the inner side of the inner screening plate 210, a plurality of second mounting holes 702 and a plurality of third mounting holes 703 are formed on the first baffle ring 705 and the second baffle ring 706, respectively, a plurality of fourth mounting holes 704 are formed on the outer side of the outer screening plate 230, and a plurality of first mounting holes 701, a plurality of second mounting holes 702, a plurality of third mounting holes 703 and a plurality of fourth mounting holes 704 are uniformly distributed along the circumferential direction of the screening drum 240.

The screen plate assembly further includes a plurality of first spacing units, a plurality of second spacing units, a plurality of third spacing units, and a plurality of fourth spacing units. The first limiting units are disposed in the first ring groove 2051, and each first limiting unit includes a first limiting post 215 and two first springs 2052. Each first limiting column 215 is fixedly arranged in the first ring groove 2051 and in one first mounting hole 701, two first springs 2052 are sleeved on the first limiting columns 215 and are positioned at the upper end and the lower end of the inner layer screening plate 210, one end of each first spring 2052 is fixedly connected to the inner wall of the first ring groove 2051, and the other end of each first spring 2052 is fixedly connected to the inner layer screening plate 210. The first springs 2052 enable the inner screen plate 210 to return as the inner screen plate 210 moves up and down within the first ring groove 2051. The first limiting columns 215 are used to limit the rotation of the inner screening plates 210.

The second limiting units are disposed in the second annular groove 213, and each second limiting unit includes a second limiting post 801 and two second springs 802. Each second limiting column 801 is fixedly arranged in the second annular groove 213 and in one second mounting hole 702, two second springs 802 are sleeved on the second limiting columns 801 and are positioned at the upper end and the lower end of the first baffle ring 705, one end of each second spring 802 is fixedly connected to the inner wall of the second annular groove 213, and the other end of each second spring 802 is fixedly connected to the first baffle ring 705. The second spring 802 can restore the first blocking ring 705 when the first blocking ring 705 moves up and down in the second ring groove 213.

The third limiting units are disposed in the third ring groove 233, and each third limiting unit includes a third limiting column 803 and two third springs 804. Each third limit column 803 is fixedly arranged in the third annular groove 233 and in one third mounting hole 703, two third springs 804 are sleeved on the third limit column 803 and are positioned at the upper end and the lower end of the second baffle ring 706, one end of each third spring 804 is fixedly connected to the inner wall of the third annular groove 233, and the other end of each third spring 804 is fixedly connected to the second baffle ring 706. The third spring 804 can restore the second stopper ring 706 when the second stopper ring 706 moves up and down in the third ring groove 233. The second and third spacing posts 801, 803 serve to limit the rotation of the intermediate screening plate 220.

The fourth limiting units are disposed in the fourth ring groove 241, and each fourth limiting unit includes a fourth limiting post 805 and two fourth springs 806. Each fourth limiting column 805 is fixedly disposed in the fourth ring groove 241 and in one fourth mounting hole 704, two fourth springs 806 are sleeved on the fourth limiting columns 805 and are positioned at the upper end and the lower end of the outer layer screening plate 230, one end of each fourth spring 806 is fixedly connected to the inner wall of the fourth ring groove 241, and the other end of each fourth spring 806 is fixedly connected to the outer layer screening plate 230. The fourth springs 806 can return the outer screening plate 230 as the outer screening plate 230 moves up and down within the fourth ring groove 241. The fourth stop post 805 is used to limit the rotation of the outer screen plate 230.

In this embodiment, as shown in fig. 3, 11 and 12, a plurality of connection pipes 211 are fixedly provided on each of the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230, and the connection pipes 211 are vertically provided. The screen plate assembly further includes a plurality of connecting rods 202 and a plurality of support springs 214, the plurality of connecting rods 202 being uniformly distributed along the circumference of the screen bin 106, each connecting rod 202 extending radially of the screen bin 106, one end of the connecting rod 202 being fixedly connected to the screen bin 106. A plurality of connecting columns 221 are fixedly arranged on each connecting rod 202, the connecting columns 221 are vertically arranged, the connecting columns 221 are uniformly distributed along the length direction of the connecting rods 202, and each connecting column 221 is slidably arranged in the connecting tube 211 along the vertical direction. Each of the support springs 214 is disposed in one of the connection pipes 211, an upper end of the support spring 214 is fixedly coupled to the connection post 221, and a lower end of the support spring 214 is fixedly coupled to an inner wall of the connection pipe 211. When there is no traditional Chinese medicine on the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230, the supporting springs 214 drive the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230 to reset.

In this embodiment, as shown in fig. 2 and 3, a top cover 107 is fixedly disposed on the screening bin 106, and a feed inlet 108 is formed in the middle of the top cover 107. The peripheral walls of the screening bin 106 and the bottom bin 400 are respectively provided with a discharge hole 203, each discharge hole 203 is provided with a discharge bin 101, and one end of each discharge bin 101 is fixedly connected to the peripheral wall of the screening bin 106. The outlet 203 on the screening bin 106 is above the screen plate assembly. A guide curved surface 401 is arranged in the bottom bin 400, the middle part of the guide curved surface 401 is higher than the periphery of the guide curved surface 401, and the discharge hole 203 of the bottom bin 400 is positioned at the periphery of the guide curved surface 401.

In some other embodiments, as shown in fig. 2, there are a plurality of screening bins 106 and screening mechanisms 200, each screening mechanism 200 is disposed in one screening bin 106, a plurality of screening bins 106 are disposed above the support cylinder 102 from top to bottom, and the plurality of screening bins 106 can each rotate relative to each other. The screening bin 106 at the top is defined as a first screening bin, the screening bin 106 in contact with the bottom bin 400 is defined as a second screening bin, the second screening holes 270 in the first screening bin have a larger pore size than the second screening holes 270 in the second screening bin, the pore sizes of the first screening holes 242 of all the screening cartridges 240 are the same, and the pore sizes of the first screening holes 242 are larger than the pore sizes of the second screening holes 270 in the first screening bin. The top cover 107 is fixedly disposed on the first sifting bin.

A batch of the traditional Chinese medicine is fed into the first screening bin from the feed inlet 108, and as screening proceeds, the traditional Chinese medicine with smaller size conforming to the aperture of the second screening hole 270 passes through the second screening hole 270, and then the traditional Chinese medicine with smaller size passes through the first screening hole 242 to enter the second screening bin. The larger volume of the traditional Chinese medicine which does not conform to the aperture of the second sieving hole 270 diffuses from inside to outside towards the discharge hole 203 and is discharged from the discharge bin 101. The smaller size of the traditional Chinese medicine in the second screening bin, which accords with the aperture of the second screening hole 270, sequentially passes through the second screening hole 270 and the first screening hole 242, finally arrives on the guiding curved surface 401 of the bottom bin 400, and is discharged from the discharge hole 203 of the bottom bin 400.

The working process comprises the following steps: in the initial state, as shown in fig. 6, the inner expansion bracket 260 is contracted to the minimum and the outer expansion bracket 250 is expanded to the maximum by the first and

second reset cylinders

206 and 201, the first and

second stopper rods

262 and 251 are positioned at the inner and outer sides of the first and sixth stopper rings 212 and 234, respectively.

A batch of traditional Chinese medicine is put into the first screening bin from the feed inlet 108, then the vibration motor 103 is started, and under the action of the vibration motor 103, the traditional Chinese medicine performs external expansion involute movement on the screening plate assembly, namely, the traditional Chinese medicine gradually moves from the inner screening plate 210 to the outer screening plate 230. As the sizing proceeds, the smaller volume of traditional Chinese medicine conforming to the pore size of the second sizing aperture 270 passes through the second sizing aperture 270, after which the smaller volume of traditional Chinese medicine passes through the first sizing aperture 242 into the second sizing bin. The larger volume of the traditional Chinese medicine which does not conform to the aperture of the second sieving hole 270 diffuses from inside to outside towards the discharge hole 203 and is discharged from the discharge bin 101. The smaller size of the traditional Chinese medicine in the second screening bin, which accords with the aperture of the second screening hole 270, sequentially passes through the second screening hole 270 and the first screening hole 242, finally arrives on the guiding curved surface 401 of the bottom bin 400, and is discharged from the discharge hole 203 of the bottom bin 400.

The first reset cylinder 206 and the second reset cylinder 201 do not limit the inner telescopic frame 260 and the outer telescopic frame 250 any more while the vibration motor 103 is started.

The traditional Chinese medicine is placed in three forms in the screening bin 106, wherein in the first form, the traditional Chinese medicine is placed on the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230, and the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230 move downwards under the gravity. At this time, the first stopper rod 262 abuts against the first stopper ring 212, and the first stopper rod 262 restricts movement of the inner telescopic frame 260. The second limit rod 251 abuts against the sixth limit ring 234, and the second limit rod 251 limits the movement of the outer expansion bracket 250, so that the traditional Chinese medicine is accumulated on the middle screening plate 220.

As the screening proceeds, the smaller size of the chinese medicine passes through the second screening holes 270, and the larger size of the chinese medicine gradually spreads to the outer screening sheet 230. The Chinese medicine on the inner screen plate 210 gradually decreases, the inner screen plate 210 rises first, and the first stopper rod 262 and the first stopper ring 212 are separated from contact. Due to the vibration motor 103, the balancing weight 261 can drive the inner telescopic frame 260 to expand outwards. After the first stop lever 262 abuts against the third stop collar 222, the inner expansion bracket 260 is no longer expanded. When the inner telescoping shelf 260 expands outwardly, the inner telescoping shelf 260 pushes the vibrating mass 204 outwardly, concentrating the vibrating mass 204 at the middle screening plate 220 and the outer screening plate 230. The traditional Chinese medicine on the middle screening plate 220 gradually decreases, the traditional Chinese medicine gradually comes to the outer screening plate 230, after the middle screening plate 220 ascends, the first limiting rod 262 and the third limiting ring 222 are separated from contact, the inner layer expansion frame 260 continues to expand outwards until the first limiting rod 262 and the fifth limiting ring 232 are propped against each other, and the vibration block 204 is driven to be concentrated at the outer screening plate 230.

In the second form, the inner screening sheet 210 and the middle screening sheet 220 have the Chinese medicine thereon, and the inner screening sheet 210 and the middle screening sheet 220 move downward. At this time, the first stopper rod 262 abuts against the first stopper ring 212, the outer telescopic frame 250 is contracted inwards by the contraction spring 252, the telescopic rod 253 is contracted, and the second stopper rod 251 abuts against the fourth stopper ring 224.

As the screening proceeds, the inner screen plate 210 is raised and the first stop bar 262 and the first stop collar 212 are disengaged. Under the action of the balancing weight 261, the inner telescopic frame 260 expands outwards until the first limiting rod 262 and the third limiting ring 222 are propped against each other. The chinese medicine on the middle screening plate 220 is gradually reduced and the chinese medicine on the outer screening plate 230 is gradually increased, and after the middle screening plate 220 is lifted, the outer screening plate 230 is lowered.

The first limiting rod 262 and the third limiting ring 222 are separated from contact, the inner telescopic frame 260 continues to expand outwards, and since the first limiting rod 262 and the third limiting ring 222 are propped against each other and the second limiting rod 251 and the fourth limiting ring 224 are propped against each other, the telescopic rod 253 is contracted to the limit position of the length of the telescopic rod 253, the telescopic rod 253 is not contracted any more, and the outer telescopic frame 250 is driven to expand outwards by the telescopic rod 253 when the inner telescopic frame 260 continues to expand outwards. Because the second limiting rod 251 is an inclined plane, when the outer telescopic frame 250 expands outwards, the second limiting rod 251 can break through the blocking of the fifth limiting ring 232 and the sixth limiting ring 234, and finally the second limiting rod 251 comes to the outer side of the sixth limiting ring 234, and the first limiting rod 262 is positioned at the inner side of the fifth limiting ring 232 and the first limiting rod 262 and the fifth limiting ring 232 are propped against each other.

In the third form, the inner screening sheet 210 has the Chinese medicine thereon, and the inner screening sheet 210 descends. At this time, the first stop lever 262 abuts against the first stop collar 212, and the second stop lever 251 abuts against the second stop collar 216. As screening proceeds, the inner screen panel 210 rises and the intermediate screen panel 220 falls. The first stop lever 262 and the first stop collar 212 are out of contact and then abut against the third stop collar 222. The inner expansion bracket 260 drives the outer expansion bracket 250 to expand outwards through the expansion rod 253, and the second limiting ring 216 breaks through the third limiting ring 222 and the fourth limiting ring 224 to come to the outer side of the fourth limiting ring 224. After that, the middle screening plate 220 is lifted up, the outer screening plate 230 is lowered down, the first stop lever 262 and the third stop ring 222 are separated from contact and then are propped against the fifth stop ring 232, and the second stop ring 216 breaks through the fifth stop ring 232 and the sixth stop ring 234 to come to the outer side of the sixth stop ring 234.

As the chinese medicine gradually moves from the inner screening plate 210 to the outer screening plate 230, the chinese medicine gradually accumulates to the outer screening plate 230. The inner layer expansion bracket 260 and the outer layer expansion bracket 250 push the vibrating block 204 and concentrate the vibrating block 204 at the stacking position of the traditional Chinese medicines, thereby accelerating the screening of the traditional Chinese medicines.

After the traditional Chinese medicines on the inner screening plate 210, the middle screening plate 220 and the outer screening plate 230 are discharged, the first reset cylinder 206 and the second reset cylinder 201 are started to pull the inner telescopic frame 260 and the outer telescopic frame 250 back to the initial positions, and the materials are discharged again.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. A traditional Chinese medicine granule grading treatment device is characterized in that:

comprises a supporting cylinder (102), a bottom bin (400), a screening bin (106) and a screening mechanism (200); the screening bin (106), the bottom bin (400) and the supporting cylinder (102) are sequentially arranged from top to bottom, the screening mechanism (200) is arranged in the screening bin (106), and each screening mechanism (200) comprises a screening cylinder (240), a screening plate assembly, a telescopic frame assembly and a plurality of vibrating blocks (204); the screening cylinder (240) is fixedly arranged in the screening bin (106), and a plurality of first screening holes (242) are formed in the bottom of the screening cylinder (240);

the screen plate assembly includes an inner screen plate (210), a middle screen plate (220), and an outer screen plate (230); the inner layer screening plate (210), the middle screening plate (220) and the outer layer screening plate (230) are sequentially arranged in the screening cylinder (240) from inside to outside, the inner layer screening plate (210), the middle screening plate (220) and the outer layer screening plate (230) are all arranged concentrically with the screening cylinder (240), the inner layer screening plate (210), the middle screening plate (220) and the outer layer screening plate (230) can all move up and down, and a plurality of second screening holes (270) are formed in the inner layer screening plate (210), the middle screening plate (220) and the outer layer screening plate (230);

The telescopic frame assembly is arranged in the screening cylinder (240) and is positioned below the screening plate assembly, and comprises an inner telescopic frame (260), an outer telescopic frame (250) and a plurality of telescopic rods (253); the inner telescopic frames (260) are arranged on the inner sides of the outer telescopic frames (250), a plurality of telescopic rods (253) are uniformly distributed along the circumferential direction of the screening cylinder (240), each telescopic rod (253) extends along the radial direction of the screening cylinder (240), the inner ends of the telescopic rods (253) are fixedly connected to the inner telescopic frames (260), and the outer ends of the telescopic rods (253) are fixedly connected to the outer telescopic frames (250); a plurality of vibrating blocks (204) are movably arranged between the inner layer expansion bracket (260) and the outer layer expansion bracket (250);

the driving mechanism is used for driving the bottom bin (400) and the screening bin (106) to move, so that the traditional Chinese medicine performs external expansion involute movement on the screening plate assembly; in the process, the inner telescopic frame (260) and the outer telescopic frame (250) expand or contract according to the concentrated range of the traditional Chinese medicine, and then the vibrating block (204) is moved to the concentrated position of the traditional Chinese medicine.

2. The apparatus for classifying treatment of chinese medicine particles according to claim 1, wherein:

the driving mechanism comprises a vibrating motor (103) and a plurality of vibrating springs (104), wherein the vibrating motor (103) is arranged in a supporting cylinder (102), the upper end of the vibrating motor (103) is propped against the bottom of a bottom bin (400), the upper end of each vibrating spring (104) is fixedly connected with the bottom bin (400), the lower end of each vibrating spring (104) is fixedly connected with the supporting cylinder (102), and the vibrating springs (104) are uniformly distributed along the circumference of the supporting cylinder (102).

3. The apparatus for classifying treatment of chinese medicine particles according to claim 1, wherein:

the inner layer expansion bracket (260) comprises two first connecting units, a plurality of first vertical rods (505) and a plurality of balancing weights (261); the two first connecting units are arranged up and down in sequence and are fixedly connected through a plurality of first vertical rods (505) which are arranged vertically;

each first connecting unit comprises a plurality of first hinging rods (501) and a plurality of second hinging rods (502), the first hinging rods (501) and the second hinging rods (502) are V-shaped, and openings of the first hinging rods (501) and the second hinging rods (502) face the circle center of the inner screening plate (210); the first hinging rods (501) are sequentially hinged end to end, the second hinging rods (502) are sequentially hinged end to end, bending points of the first hinging rods (501) and bending points of the second hinging rods (502) are rotatably arranged on a first vertical rod (505), and each balancing weight (261) is fixedly arranged on the first vertical rod (505).

4. The apparatus for classifying treatment of chinese medicine particles according to claim 1, wherein:

the outer telescopic frame (250) comprises two second connecting units, a plurality of second vertical rods (603), a plurality of third vertical rods (604) and a plurality of contraction springs (252); the two second connecting units are arranged up and down in sequence and are fixedly connected with the third vertical rod (604) through a plurality of second vertical rods (603) which are vertically arranged;

Each second connecting unit comprises a plurality of third hinging rods (601) and a plurality of fourth hinging rods (602), the third hinging rods (601) and the fourth hinging rods (602) are all V-shaped, and openings of the third hinging rods (601) and the fourth hinging rods (602) face the circle center of the inner screening plate (210); the head ends of the third hinging rods (601) and the tail ends of the adjacent third hinging rods (601) are rotatably arranged on a second vertical rod (603), the head ends of the fourth hinging rods (602) are sequentially hinged, and the head ends of the fourth hinging rods (602) and the tail ends of the adjacent fourth hinging rods (602) are rotatably arranged on the second vertical rod (603); the bending point of each third hinging rod (601) and the bending point of each fourth hinging rod (602) are rotatably arranged on one third vertical rod (604); the distance between the third vertical rod (604) and the center of the inner layer screening plate (210) is larger than the distance between the second vertical rod (603) and the center of the inner layer screening plate (210); the shrinkage spring (252) is horizontally arranged, and two ends of the shrinkage spring (252) are respectively and fixedly connected to two adjacent second vertical rods (603).

5. The apparatus for classifying treatment of chinese medicine particles according to claim 4, wherein:

a first limiting rod (262) is arranged at the joint between the head end of the first hinging rod (501) and the tail end of the adjacent first hinging rod (501); the distance between the first limiting rod (262) and the center of the inner screening plate (210) is smaller than the distance between the first vertical rod (505) and the center of the inner screening plate (210); a second limiting rod (251) is arranged at the joint of the head end of the third hinging rod (601) and the tail end of the adjacent third hinging rod (601), and the distance between the second limiting rod (251) and the center of the inner layer screening plate (210) is larger than that between the third vertical rod (604) and the center of the inner layer screening plate (210); the upper end of the second limiting rod (251) is an inclined plane, and the inclined plane is gradually far away from the center of the filter screen support column (205) along the direction from top to bottom;

the inner end and the outer end of the lower side surface of the inner layer screening plate (210) are respectively fixedly provided with a first limiting ring (212) and a second limiting ring (216); the inner end and the outer end of the lower side surface of the middle screening plate (220) are respectively fixedly provided with a third limiting ring (222) and a fourth limiting ring (224); the inner end and the outer end of the lower side surface of the outer layer screening plate (230) are respectively fixedly provided with a fifth limiting ring (232) and a sixth limiting ring (234); in the initial state, the first limiting rod (262) is positioned on the inner side of the first limiting ring (212) at the inner end, and the second limiting rod (251) is positioned on the outer side of the sixth limiting ring (234) at the outer end.

6. The apparatus for classifying treatment of chinese medicine particles according to claim 1, wherein:

a filter screen supporting column (205) is vertically arranged on the screening bin (106); the telescopic frame assembly further comprises a driving unit, the driving unit comprises a first reset cylinder (206) and a second reset cylinder (201), one end of the second reset cylinder (201) is fixedly connected to the screening bin (106), and the other end of the second reset cylinder (201) is fixedly connected to a third vertical rod (604); one end of a first reset cylinder (206) is fixedly connected to the filter screen supporting column (205), and the other end of the first reset cylinder (206) is fixedly connected to the first vertical rod (505).

7. The apparatus for classifying treatment of chinese medicine particles according to claim 6, wherein:

a first ring groove (2051) is formed in the filter screen support column (205) along the circumferential direction of the filter screen support column; the inner layer screening plate (210), the middle screening plate (220) and the outer layer screening plate (230) are all annular; the inner side of the inner layer screening plate (210) is arranged in the first annular groove (2051) in a vertically sliding way, and the outer side wall of the inner layer screening plate (210) is provided with a second annular groove (213); the inner side wall and the outer side wall of the middle screening plate (220) are fixedly provided with a first baffle ring (705) and a second baffle ring (706), and the first baffle ring (705) and the second baffle ring (706) extend along the circumferential direction of the middle screening plate (220); the first baffle ring (705) is arranged in the second annular groove (213) in a manner of being capable of moving up and down; the inner side wall of the outer layer screening plate (230) is provided with a third annular groove (233), and the second baffle ring (706) is arranged in the third annular groove (233) in a vertically movable manner; a fourth annular groove (241) is formed in the inner side wall of the screening cylinder (240) along the circumferential direction of the screening cylinder, and the outer side of the outer layer screening plate (230) is arranged in the fourth annular groove (241) in a vertically movable mode.

8. The apparatus for classifying treatment of chinese medicine particles according to claim 7, wherein:

a plurality of first mounting holes (701) are formed in the inner side of the inner layer screening plate (210), a plurality of second mounting holes (702) and a plurality of third mounting holes (703) are formed in the first baffle ring (705) and the second baffle ring (706) respectively, a plurality of fourth mounting holes (704) are formed in the outer side of the outer layer screening plate (230), and the plurality of first mounting holes (701), the plurality of second mounting holes (702), the plurality of third mounting holes (703) and the plurality of fourth mounting holes (704) are uniformly distributed along the circumferential direction of the screening cylinder (240);

the screening plate assembly further comprises a plurality of first limiting units, a plurality of second limiting units, a plurality of third limiting units and a plurality of fourth limiting units; the first limiting units are arranged in the first ring grooves (2051), and each first limiting unit comprises a first limiting column (215) and two first springs (2052); each first limiting column (215) is fixedly arranged in a first annular groove (2051) and in a first mounting hole (701), two first springs (2052) are sleeved on the first limiting columns (215) and are positioned at the upper end and the lower end of the inner layer screening plate (210), one end of each first spring (2052) is fixedly connected to the inner wall of the first annular groove (2051), and the other end of each first spring (2052) is fixedly connected to the inner layer screening plate (210);

The second limiting units are arranged in the second annular grooves (213), and each second limiting unit comprises a second limiting column (801) and two second springs (802); each second limit column (801) is fixedly arranged in a second annular groove (213) and in a second mounting hole (702), two second springs (802) are sleeved on the second limit columns (801) and are positioned at the upper end and the lower end of a first baffle ring (705) on the inner side, one end of each second spring (802) is fixedly connected to the inner wall of the second annular groove (213), and the other end of each second spring (802) is fixedly connected to the first baffle ring (705);

the third limiting units are arranged in the third ring grooves (233), and each third limiting unit comprises a third limiting column (803) and two third springs (804); each third limit column (803) is fixedly arranged in a third annular groove (233) and in a third mounting hole (703), two third springs (804) are sleeved on the third limit columns (803) and are positioned at the upper end and the lower end of the second baffle ring (706), one end of each third spring (804) is fixedly connected to the inner wall of the third annular groove (233), and the other end of each third spring (804) is fixedly connected to the second baffle ring (706);

The fourth limiting units are arranged in the fourth annular grooves (241), and each fourth limiting unit comprises a fourth limiting column (805) and two fourth springs (806); every fourth spacing post (805) is fixed to be set up in fourth annular (241), and set up in a fourth mounting hole (704), and two fourth springs (806) cover are located on fourth spacing post (805), and are in the upper and lower both ends of outer screening board (230), and one end fixed connection of fourth spring (806) is in the inner wall of fourth annular (241), and the other end fixed connection of fourth spring (806) is in outer screening board (230).

9. The apparatus for classifying treatment of chinese medicine particles according to claim 1, wherein:

a plurality of connecting pipes (211) are fixedly arranged on the inner layer screening plate (210), the middle screening plate (220) and the outer layer screening plate (230), and the connecting pipes (211) are vertically arranged; the screening plate assembly further comprises a plurality of connecting rods (202) and a plurality of supporting springs (214), the plurality of connecting rods (202) are uniformly distributed along the circumference of the screening bin (106), each connecting rod (202) extends along the radial direction of the screening bin (106), and one end of each connecting rod (202) is fixedly connected to the screening bin (106); a plurality of connecting columns (221) are fixedly arranged on each connecting rod (202), the connecting columns (221) are vertically arranged, the connecting columns (221) are uniformly distributed along the length direction of the connecting rod (202), and each connecting column (221) is slidably arranged in the connecting pipe (211) along the vertical direction; each supporting spring (214) is arranged in one connecting pipe (211), the upper end of each supporting spring (214) is fixedly connected with the connecting column (221), and the lower end of each supporting spring (214) is fixedly connected with the inner wall of the connecting pipe (211).

10. The apparatus for classifying treatment of chinese medicine particles according to claim 1, wherein:

a top cover (107) is fixedly arranged on the screening bin (106), and a feed inlet (108) is formed in the middle of the top cover (107); the peripheral walls of the screening bin (106) and the bottom bin (400) are respectively provided with a discharge hole (203), each discharge hole (203) is provided with a discharge bin (101), and one end of each discharge bin (101) is fixedly connected with the peripheral wall of the screening bin (106); a discharge hole (203) on the screening bin (106) is positioned above the screening plate assembly; a guide curved surface (401) is arranged in the bottom bin (400), the middle part of the guide curved surface (401) is higher than the periphery of the guide curved surface (401), and the discharge hole (203) of the bottom bin (400) is positioned at the periphery of the guide curved surface (401).