CN113145464A

CN113145464A - Wolfberry sorting is with sieving mechanism that has automatic branch function

Info

Publication number: CN113145464A
Application number: CN202110492917.8A
Authority: CN
Inventors: 穆云峰; 穆推峰
Original assignee: Qinghai Huifeng Natural Wild Resources Development Co ltd
Current assignee: Qinghai Huifeng Natural Wild Resources Development Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-07-23

Abstract

The invention discloses a screening device with an automatic sorting function for wolfberry fruit selection, and relates to the technical field of wolfberry fruit screening. The screening device comprises an outer box and a screening mechanism, wherein the screening mechanism is coaxially arranged inside the outer box, the screening mechanism comprises a first partition ring and a screening disc, the first partition ring is fixedly sleeved on the screening disc, the first partition rings are concentrically and equidistantly arranged in the radial direction, a plurality of screening grooves are formed between adjacent first partition rings above the screening disc, and a discharge groove is formed between adjacent partition rings below the screening disc; sieve holes are uniformly distributed on the sieve tray at the inner side of the sieve moving groove along the circumferential direction, and the aperture of the sieve hole in each sieve moving groove outwards from the center of the sieve moving tray is gradually reduced; the bottom surfaces of the sieve moving grooves which are outward from the center of the sieve moving disc are arranged in an equidistant heightening way. According to the wolfberry fruit screening device, the wolfberry fruit can be accurately graded through the matching of the screening mechanism and the auxiliary screening mechanism, the structure is reasonable, the applicability is strong, and the arrangement of the intercepting mechanism is convenient for screening and removing impurities such as branches and leaves in the wolfberry fruit.

Description

Wolfberry sorting is with sieving mechanism that has automatic branch function

Technical Field

The invention belongs to the technical field of wolfberry screening, and particularly relates to a screening device with an automatic grading function for wolfberry sorting, which is mainly used for carrying out automatic grading screening on wolfberry.

Background

The medlar is a general name of lycium species such as commercial medlar, plant Ningxia medlar, Chinese medlar and the like, the medlar which is edible and medicinal in daily life is mostly the fruit of the Ningxia medlar, and the Ningxia medlar is the only variety loaded in Chinese pharmacopoeia of 2010 edition;

in the production and processing process of the medlar, an enterprise needs to classify the medlar with different sizes through a screening device so as to be convenient for the enterprise to summarize and bag the medlar according to the size;

according to the prior publication, CN 209255178U-a hierarchical screening edulcoration device is used in chinese wolfberry processing, discloses including chassis, carriage and screening case, chassis upper end inboard is provided with the equipment box, chassis upper end and carriage fixed connection, carriage left side rear end is provided with the motor, the inside left side of carriage is provided with the driving shaft, the inside right side of carriage is provided with the driven shaft, the driving shaft passes through the conveyer belt and is connected with the driven shaft, the motor is connected with the driving shaft. The utility model discloses in through being provided with the carriage on screening case left side, the carriage just can be to the transport of matrimony vine, can be continuous to screening incasement portion transport matrimony vine, not only convenient, but also high work efficiency is provided with the different sieve of two sieve meshes in screening incasement portion, can carry out classified screening with the matrimony vine, and the screening effect is comparatively good, and not only easy operation has but also reduced operating pressure, has also improved screening efficiency simultaneously.

Although the screening device disclosed in the above publication can perform the function of screening the chinese wolfberry, the device still has the following disadvantages in practical use:

1. the screening device in the existing published literature has a complex overall structure, and when the medlar is subjected to multi-stage screening, a plurality of screening nets with different purposes need to be arranged along the vertical direction, so that the overall structure is large, and the grading effect is poor;

2. the screening device in the existing published literature can only screen silt in the medlar, but cannot screen impurities such as branches and leaves in the medlar, and the medlar processing process contains a large amount of branches and leaves, but the existing screening device is difficult to separate the impurities;

therefore, there is a need for improvement of the prior art to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a screening device with an automatic sorting function for sorting materials, which has a small structure, can efficiently realize multi-stage screening of medlar and thoroughly screen impurities in the medlar, and solves the problems that the screening device in the existing open literature has a complex integral structure, cannot thoroughly screen the medlar in multiple stages and is inconvenient to fully screen the impurities in the medlar.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a screening device with an automatic separation function for wolfberry sorting, which comprises an outer box and a screening mechanism, wherein the screening mechanism is coaxially arranged inside the outer box, the screening mechanism comprises a first partition ring and a screening disc, the first partition ring is fixedly sleeved on the screening disc, a plurality of first partition rings are concentrically and equidistantly arranged along the radial direction, a screening groove is formed between adjacent first partition rings above the screening disc, and a discharge groove is formed between adjacent partition rings below the screening disc;

sieve holes are uniformly distributed on the sieve tray at the inner side of the sieve moving groove along the circumferential direction, and the aperture of the sieve hole in each sieve moving groove outwards from the center of the sieve moving tray is gradually reduced;

the inner bottom surfaces of the sieving moving grooves outwards from the center of the sieving moving disc are arranged in an equidistant heightening way;

a plurality of first partition rings between the outermost and innermost first partition rings are provided with material feeding grooves, and the top surfaces of the sieving disks at the material feeding grooves are provided with inclined slopes for smooth transition from the medlar to the adjacent sieving grooves;

an auxiliary screening mechanism is arranged above the screening mechanism and comprises a motor, a push block and a vibrating machine; the pushing block is in clearance fit with the screen moving groove, an arc-shaped surface is arranged on one side face of the pushing block, and the diameter line of the arc-shaped surface and the inclined slope are arranged in an intersecting mode on the horizontal plane.

Furthermore, the plurality of push blocks are fixedly connected to a connecting rod above through connecting columns, one end of the connecting rod is fixedly sleeved on a rotating shaft, the upper end of the rotating shaft is embedded in the output end of the motor, and the rotating shaft and the sieving disc are coaxially arranged.

Further, the lower extreme of axis of rotation passes through antifriction bearing and rotates to be connected on the locating piece, locating piece fixed connection is on the top surface of bobbing machine, the output fixed connection of bobbing machine is on the screening dish.

Furthermore, a connecting ring is further arranged on the outer wall of the upper end of the first partition ring on the outermost side along the circumferential direction, a plurality of T-shaped columns are sleeved on the connecting ring in a sliding mode along the circumferential direction, one ends of the T-shaped columns are fixedly connected to the top surface of the fixing plate, and the fixing plate is fixedly connected to the inner wall of the outer box; and a reset spring is sleeved on the T-shaped column at the position between the fixed plate and the first separating ring in a sliding manner.

Furthermore, two concentric and different-diameter flow guide sleeves extend downwards on the top surface of the outer box, a feed chute is formed between the two flow guide sleeves, and the motor is fixedly connected to the inner wall of the small-diameter flow guide sleeve through a mounting frame.

Furthermore, a material taking groove is arranged on one side surface of the outer box below the sieving mechanism, and a collecting mechanism is movably matched in the material taking groove;

the collecting mechanism comprises a chassis and a plurality of second separating rings, the second separating rings are fixedly connected to the top surface of the chassis, the second separating rings are concentrically and equidistantly arranged along the radial direction, and the plurality of first separating rings and the plurality of second separating rings are aligned one by one up and down;

be provided with the handle on the chassis outer wall near silo one side of getting, still be provided with spacing on the two symmetrical sides on chassis simultaneously, spacing be used for with the spacing groove clearance fit on the outer container inner wall.

Further, still fixed mounting has the controller on an lateral wall of outer container, the controller passes through the conducting wire respectively with motor and bobbing machine electric connection.

Furthermore, a spiral guide plate is arranged in the feeding groove along the vertical direction, and the spiral guide plate is fixedly connected to the guide sleeve;

the feeding groove is also provided with an intercepting mechanism in a matching way, and the intercepting mechanism comprises an intercepting rod, a fixed rod and an operating rod; a plurality of fixed rods are arranged in parallel in the vertical direction, one end of each fixed rod rotatably penetrates through the guide sleeve and extends into the feeding chute, and a plurality of intercepting rods are arranged on the fixed rods positioned in the feeding chute in parallel in the axial direction;

the connecting body of the fixed rod and the interception rod and the spiral guide plate are arranged in a staggered manner;

the other ends of the linkage plates are rotatably connected to the same operating rod.

Furthermore, the linkage plate and the interception rod are vertically arranged on the same vertical surface.

Furthermore, the discharge hole at the lower end of the feed chute and the feed chute are arranged in a staggered manner on the same horizontal plane.

The invention has the following beneficial effects:

1. according to the invention, through the arrangement of the sieving mechanism, an operator adds the medlar into the sieving groove at the outermost side of the sieving disc through the feeding groove, the whole sieving disc can be driven to shake and sieve through the vibration of the vibrating machine, and through the arrangement of the push block in the sieving groove, the push block can be driven to rotate in the sieving groove along the circumferential direction under the driving of the rotation of the motor, so that the medlar in the sieving groove is flattened.

2. According to the invention, the spiral guide plate in the feeding groove is arranged, so that the flowing distance of the medlar feeding can be increased, the intercepting rods in the feeding groove are arranged, so that branches and leaves in the medlar can be intercepted and screened, and the smallest and largest screening holes in the screening disc are convenient for screening the gravels.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a vertical cross-sectional view of the present invention;

FIG. 3 is another vertical cross-sectional view of the present invention;

FIG. 4 is a schematic view of the fitting structure of the auxiliary sifting mechanism, the sifting mechanism and the connecting body of the fixed plate according to the present invention;

FIG. 5 is a schematic view of the structure of the sifting mechanism of the present invention;

FIG. 6 is a schematic structural view of an auxiliary sifting mechanism according to the present invention;

FIG. 7 is a schematic view of the overall structure of the fixing plate according to the present invention;

FIG. 8 is a schematic view of the intercepting mechanism of the present invention;

FIG. 9 is a schematic view of the structure of the collecting mechanism of the present invention;

fig. 10 is a perspective view of the outer case of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. an outer box; 2. a collection mechanism; 3. a controller; 4. a flow guide sleeve; 5. an interception mechanism; 6. an auxiliary screening mechanism; 7. a screen moving mechanism; 8. a fixing plate; 101. a material taking groove; 102. a feed chute; 103. a limiting groove; 201. a chassis; 202. a second divider ring; 203. a handle; 204. a limiting strip; 401. a mounting frame; 402. a spiral deflector; 501. a catch bar; 502. fixing the rod; 503. a linkage plate; 504. an operating lever; 601. a motor; 602. a push block; 603. a vibrator; 701. a first spacer ring; 702. a screening disk; 703. a connecting ring; 704. a material feeding groove; 705. an inclined slope; 706. screening holes; 801. a return spring; 802. a T-shaped column; 6011. a rotating shaft; 6021. a connecting rod; 6022. a circular arc surface; 6023. connecting columns; 6031. and (5) positioning the blocks.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-3 and 9, the invention relates to a screening device with automatic sorting function for selecting medlar, comprising an outer box 1 and a screening mechanism 7, wherein the screening mechanism 7 is coaxially arranged inside the outer box 1,

two concentric reducing guide sleeves 4 extend downwards from the top surface of the outer box 1, a feed chute 102 is formed between the two guide sleeves 4, and the motor 601 is fixedly connected to the inner wall of the small-diameter guide sleeve 4 through a mounting frame 401;

a material taking groove 101 is arranged on one side surface of the outer box 1 below the sieving mechanism 7, and a collecting mechanism 2 is movably matched in the material taking groove 101;

the collecting mechanism 2 comprises a chassis 201 and a second separating ring 202, the second separating ring 202 is fixedly connected to the top surface of the chassis 201, the second separating ring 202 is concentrically and equidistantly arranged in the radial direction, the first separating rings 701 and the second separating rings 202 are arranged in an up-and-down alignment manner, and the arrangement of the second separating ring 202 is convenient for the classified storage of the classified Chinese wolfberry;

a handle 203 is arranged on the outer wall of the chassis 201 close to one side of the material taking groove 101, meanwhile, two symmetrical side surfaces of the chassis 201 are also provided with limiting strips 204, the limiting strips 204 are used for being in clearance fit with the limiting grooves 103 on the inner wall of the outer box 1, and the arrangement is used for limiting and guiding the movement of the chassis 201;

a controller 3 is also fixedly installed on one outer side wall of the outer box 1, the controller 3 is respectively and electrically connected with the motor 601 and the vibrating machine 603 through conducting wires, and the controller 3 is used for controlling electrical elements in the device;

above-mentioned setting is when using, and the matrimony vine passes through the feed chute 102 and gets into to fall into on the sieve moves mechanism 7, through the screening of sieve moves mechanism 7, can realize hierarchical of matrimony vine, the matrimony vine after hierarchical falls into adjacent second spacer ring 202 on chassis 201 respectively, and the staff only need take chassis 201 out through handle 203, and the staff can take out the matrimony vine after the hierarchical.

Referring to fig. 4, 5 and 7, the sieving mechanism 7 includes a first separating ring 701 and a sieving plate 702, the first separating ring 701 is fixedly sleeved on the sieving plate 702, and a plurality of first separating rings 701 are concentrically and equidistantly arranged along the radial direction, a sieving groove is formed between adjacent first separating rings 701 above the sieving plate 702, and a discharge groove is formed between adjacent separating rings below the sieving plate 702;

the sieving plates 702 on the inner sides of the sieving grooves are uniformly provided with sieving holes 706 along the circumferential direction, the pore diameters of the sieving holes 706 in each sieving groove outwards from the circle center of the sieving plate 702 are gradually reduced, and the sieving can be carried out according to the size of the Chinese wolfberry;

the inner bottom surfaces of the sieving grooves outwards from the circle center of the sieving disc 702 are arranged in an equidistant heightening way;

a material passing groove 704 is formed in each of the first partition rings 701 between the outermost and innermost first partition rings 701, an inclined slope 705 for enabling the medlar to smoothly transit to the adjacent sieving groove is formed in the top surface of the sieving disc 702 at the position of the material passing groove 704, and the arrangement is convenient for the medlar to gradually enter the innermost sieving groove from the outermost sieving groove;

the outer wall of the upper end of the first partition ring 701 on the outermost side is further provided with a connecting ring 703 along the circumferential direction, the connecting ring 703 is sleeved with a plurality of T-shaped columns 802 in a sliding mode along the circumferential direction, one ends of the T-shaped columns 802 are fixedly connected to the top surface of the fixed plate 8, the fixed plate 8 is fixedly connected to the inner wall of the outer box 1, and the T-shaped columns 802 can play a role in limiting and guiding the upward and downward movement of the sieving disc 702; a reset spring 801 is sleeved on the T-shaped column 802 between the fixing plate 8 and the first separating ring 701 in a sliding manner, and the reset spring 801 is used for resetting during vibration;

when the arrangement is used, the medlar is added into the sieve moving groove at the outermost side, the medlar can be discharged through the sieve holes 706 with different apertures through vibration screening, and the medlar which is larger than the corresponding sieve holes 706 enters the sieve moving groove at the inner side through the material passing groove 704.

Referring to fig. 4 and 6, an auxiliary screening mechanism 6 is disposed above the screening mechanism 7, and the auxiliary screening mechanism 6 includes a motor 601, a push block 602, and a vibrator 603; the push block 602 is in clearance fit with the sieving groove, an arc surface 6022 is arranged on one side surface of the push block 602, and the diameter line of the arc surface 6022 and the inclined slope 705 are intersected on the horizontal plane, so that the push block 602 can flatten the medlar on one hand, and push the medlar larger than the sieving hole 706 into the adjacent sieving groove on the other hand;

the plurality of push blocks 602 are all fixedly connected to a connecting rod 6021 above through a connecting column 6023, one end of the connecting rod 6021 is fixedly sleeved on the rotating shaft 6011, the upper end of the rotating shaft 6011 is embedded in the output end of the motor 601, and the rotating shaft 6011 and the sieving disc 702 are coaxially arranged;

the lower end of the rotating shaft 6011 is rotatably connected to a positioning block 6031 through a rolling bearing, the positioning block 6031 is fixedly connected to the top surface of the vibrating machine 603, the output end of the vibrating machine 603 is fixedly connected to the sieving plate 702, and the vibrating machine 603 can provide a power source for the vibration of the sieving plate 702, so that the sieving mechanism 7 can perform vibrating sieving in the vertical direction;

when the device is used, the rotating shaft 6011 is driven to rotate through the work of the motor 601, the connecting rod 6021 drives the plurality of pushing blocks 602 to synchronously rotate when the rotating shaft 6011 rotates, and accordingly the wolfberry is conveyed from the sieving groove on the outer side to the sieving groove on the inner side step by step.

Referring to fig. 8 and 10, a spiral flow guiding plate 402 is vertically disposed inside the feeding chute 102, and the spiral flow guiding plate 402 is fixedly connected to the flow guiding sleeve 4;

the position of the feed chute 102 is also provided with an intercepting mechanism 5 in a matching way, and the intercepting mechanism 5 comprises an intercepting rod 501, a fixed rod 502 and an operating rod 504; a plurality of fixing rods 502 are arranged in parallel in the vertical direction, one end of each fixing rod 502 rotatably penetrates through the flow guide sleeve 4 and extends into the feed chute 102, and a plurality of intercepting rods 501 are arranged on the fixing rods 502 positioned in the feed chute 102 in parallel in the axial direction;

the connecting body of the fixed rod 502 and the interception rod 501 and the spiral guide plate 402 are arranged in a staggered manner;

one end of the fixed rod 502 positioned outside the flow guide sleeve 4 is fixedly connected with a linkage plate 503, and the other ends of the linkage plates 503 are rotatably connected to the same operating rod 504;

the linkage plate 503 and the interception rod 501 are vertically arranged on the same vertical plane;

the discharge hole at the lower end of the feed chute 102 and the material feeding chute 704 are arranged in a staggered manner on the same horizontal plane, and the arrangement prevents the sieving chute falling to the outermost side from directly entering the next sieving chute through the material feeding chute 704, so that the sieving efficiency is improved;

above-mentioned setting is when using, the matrimony vine is carried through spiral guide plate 402, at the in-process of carrying, interception pole 501 can be to the branch in the matrimony vine, the leaf intercepts, reach the effect that the impurity was sieved off, the branch that gets off when needs will be intercepted, when the leaf takes out, the staff only need upwards stimulate action bars 504, under a plurality of linkage plates 503's effect, interception pole 501 loses the interception to the branch, the leaf, the branch, the leaf falls into on the sieve tray 702 through spiral guide plate 402, the staff of being convenient for takes out it.

The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.

Claims

1. The utility model provides a matrimony vine is selected material with sieving mechanism that has automatic branch function, includes outer container (1) and sieve moving mechanism (7), sieve moving mechanism (7) coaxial setting is in the inside of outer container (1), its characterized in that: the screening mechanism (7) comprises a first partition ring (701) and a screening disc (702), the first partition ring (701) is fixedly sleeved on the screening disc (702), the first partition rings (701) are concentrically and equidistantly arranged in the radial direction, a plurality of screening grooves are formed between every two adjacent first partition rings (701) above the screening disc (702), and discharge grooves are formed between every two adjacent partition rings below the screening disc (702);

sieve holes (706) are uniformly distributed on the sieve tray (702) at the inner side of the sieve groove along the circumferential direction, and the aperture of the sieve holes (706) in each sieve groove outwards from the circle center of the sieve tray (702) is gradually reduced;

the inner bottom surfaces of the sieving grooves outwards from the circle center of the sieving disc (702) are arranged in an equidistant heightening way;

a plurality of first separating rings (701) between the first separating ring (701) at the outermost side and the first separating ring at the innermost side are provided with material passing grooves (704), and the top surface of a screening disc (702) at the position of the material passing grooves (704) is provided with an inclined slope (705) for the smooth transition of the medlar to the adjacent screening groove;

an auxiliary screening mechanism (6) is arranged above the screening mechanism (7), and the auxiliary screening mechanism (6) comprises a motor (601), a push block (602) and a vibrating machine (603); the pushing block (602) is in clearance fit with the sieving groove, an arc surface (6022) is arranged on one side surface of the pushing block (602), and the diameter line of the arc surface (6022) and the inclined slope (705) are arranged in a crossing manner on the horizontal plane.

2. The screening device with the automatic sorting function for the Chinese wolfberry fruits according to claim 1, wherein a plurality of the push blocks (602) are fixedly connected to an upper connecting rod (6021) through a connecting rod (6023), one end of the connecting rod (6021) is fixedly sleeved on a rotating shaft (6011), the upper end of the rotating shaft (6011) is embedded in the output end of the motor (601), and the rotating shaft (6011) and the screening disc (702) are coaxially arranged.

3. The screening device with the automatic sorting function for the wolfberry fruits according to claim 2, wherein the lower end of the rotating shaft (6011) is rotatably connected to a positioning block (6031) through a rolling bearing, the positioning block (6031) is fixedly connected to the top surface of the vibrating machine (603), and the output end of the vibrating machine (603) is fixedly connected to the screening disc (702).

4. The screening device with the automatic sorting function for the Chinese wolfberry as claimed in claim 1, wherein the outer wall of the upper end of the outermost first partition ring (701) is further provided with a connecting ring (703) along the circumferential direction, the connecting ring (703) is sleeved with a plurality of T-shaped columns (802) in a sliding manner along the circumferential direction, one end of each T-shaped column (802) is fixedly connected to the top surface of the fixing plate (8), and the fixing plate (8) is fixedly connected to the inner wall of the outer box (1); and a reset spring (801) is sleeved on the T-shaped column (802) between the fixing plate (8) and the first separating ring (701) in a sliding manner.

5. The screening device with the automatic sorting function for the Chinese wolfberry fruits according to claim 1, wherein two concentric and reducing guide sleeves (4) are extended downwards from the top surface of the outer box (1), a feeding chute (102) is formed between the two guide sleeves (4), and the motor (601) is fixedly connected to the inner wall of the small-diameter guide sleeve (4) through a mounting frame (401).

6. The screening device with the automatic sorting function for the Chinese wolfberry as claimed in claim 1, wherein a material taking groove (101) is arranged on one side surface of the outer box (1) below the screening mechanism (7), and the collecting mechanism (2) is movably matched in the material taking groove (101);

the collecting mechanism (2) comprises a base plate (201) and a plurality of second separating rings (202), the second separating rings (202) are fixedly connected to the top surface of the base plate (201), the second separating rings (202) are concentrically and equidistantly arranged in the radial direction, and the plurality of first separating rings (701) and the plurality of second separating rings (202) are arranged in an up-and-down alignment manner one by one;

be provided with handle (203) on chassis (201) outer wall near silo (101) one side, still be provided with spacing (204) on the two symmetrical sides of chassis (201) simultaneously, spacing (204) are used for with spacing groove (103) clearance fit on outer container (1) inner wall.

7. The screening device with the automatic sorting function for medlar according to claim 1, wherein a controller (3) is further fixedly installed on an outer side wall of the outer box (1), and the controller (3) is electrically connected with the motor (601) and the vibrator (603) through conducting wires respectively.

8. The screening device with the automatic sorting function for the Chinese wolfberry as claimed in any one of claims 1 to 7, wherein a spiral guide plate (402) is arranged inside the feeding chute (102) along the vertical direction, and the spiral guide plate (402) is fixedly connected to the guide sleeve (4);

the feed chute (102) is also provided with an intercepting mechanism (5) in a matching manner, and the intercepting mechanism (5) comprises an intercepting rod (501), a fixed rod (502) and an operating rod (504); a plurality of fixing rods (502) are arranged in parallel in the vertical direction, one end of each fixing rod (502) rotatably penetrates through the flow guide sleeve (4) and extends into the feeding groove (102), and a plurality of intercepting rods (501) are arranged on the fixing rods (502) positioned in the feeding groove (102) in parallel in the axial direction;

the connecting body of the fixed rod (502) and the interception rod (501) and the spiral guide plate (402) are arranged in a staggered manner;

one end of a fixed rod (502) positioned outside the flow guide sleeve (4) is fixedly connected with a linkage plate (503), and the other ends of the linkage plates (503) are rotatably connected to the same operating rod (504).

9. The screening device with the automatic sorting function for medlar according to claim 8, wherein the linkage plate (503) and the interception bar (501) are vertically arranged on the same vertical plane.

10. The screening device with the automatic sorting function for Chinese wolfberry as claimed in claim 8, wherein the discharge port at the lower end of the feed chute (102) and the feeding chute (704) are arranged in a staggered manner on the same horizontal plane.