A screening device with automatic sorting function for wolfberry selection

Abstract

The present invention discloses a screening device with automatic sorting function for wolfberry selection, and relates to the technical field of wolfberry screening. The present invention comprises an outer box and a screening mechanism, the screening mechanism is coaxially arranged inside the outer box, the screening mechanism comprises a first separation ring and a screening disk, the first separation ring is fixedly sleeved on the screening disk, and a plurality of first separation rings are concentrically and equidistantly arranged in the radial direction, the adjacent first separation rings above the screening disk form a screening groove, and the adjacent separation rings below the screening disk form a discharge groove; the screening disk inside the screening groove is evenly arranged with sieve holes along the circumferential direction, and the aperture of the sieve holes in each screening groove from the center of the screening disk to the outside is gradually reduced; the inner bottom surface of each screening groove from the center of the screening disk to the outside is equidistantly increased. The present invention can realize the accurate grading of wolfberries through the cooperation of the screening mechanism and the auxiliary screening mechanism, the structure itself is reasonable, the applicability is strong, and the setting of the interception mechanism is convenient for screening out impurities such as branches and leaves in wolfberries.

Description

Technical Field

[0001] The invention belongs to the technical field of wolfberry screening, and in particular relates to a screening device with an automatic classification function for wolfberry selection, which is mainly used for automatic classification and screening of wolfberries. Background Art

[0002] Wolfberry is a general term for species of the genus Lycium, including commercial wolfberry, plant Ningxia wolfberry, and Chinese wolfberry. The wolfberries that people eat and use for medicine are mostly the fruits of Ningxia wolfberry, and Ningxia wolfberry is the only variety listed in the 2010 edition of the Chinese Pharmacopoeia.

[0003] During the production and processing of wolfberries, enterprises need to classify wolfberries of different sizes through screening devices so that they can be sorted and bagged according to their sizes.

[0004] As in the existing public documents, CN209255178U - A grading, screening and impurity removal device for wolfberry processing, discloses a base frame, a conveying frame and a screening box, an equipment box is provided on the inner side of the upper end of the base frame, the upper end of the base frame is fixedly connected to the conveying frame, a motor is provided on the left rear end of the conveying frame, a driving shaft is provided on the left side of the conveying frame, a driven shaft is provided on the right side of the conveying frame, the driving shaft is connected to the driven shaft through a conveyor belt, and the motor is connected to the driving shaft. In the utility model, by providing a conveying frame on the left side of the screening box, the conveying frame can transport the wolfberries to the inside of the screening box continuously, which is not only convenient, but also has high work efficiency. Two sieve plates with different sieve holes are provided inside the screening box, which can grade and screen the wolfberries, and the screening effect is relatively good. It is not only simple to operate, but also reduces the working pressure, and also improves the screening efficiency.

[0005] Although the screening device in the above-mentioned public document can play a role in screening wolfberries, the above-mentioned device still has the following shortcomings in actual use:

[0006] 1. The overall structure of the screening device in the existing public literature is complex. When performing multi-level screening of wolfberries, it is necessary to set multiple screening nets of different purposes along the vertical direction, which leads to a bulky overall structure and poor grading effect;

[0007] 2. The screening device in the existing public literature can only screen out the mud and sand in the wolfberry, but cannot screen out impurities such as branches and leaves in the wolfberry. During the processing of wolfberry, a large number of branches and leaves will be contained, and it is difficult for the existing screening device to separate such impurities;

[0008] Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Summary of the invention

[0009] The purpose of the present invention is to provide a screening device with an automatic screening function for material selection, which has a small structure, can efficiently realize multi-stage screening of wolfberries and completely screen out impurities in wolfberries, thereby solving the problems of the screening devices in the existing public literature having a complex overall structure, incomplete multi-stage screening and inconvenience in fully screening out impurities in wolfberries.

[0010] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0011] The present invention is a screening device with automatic sorting function for wolfberry selection, comprising an outer box and a screening mechanism, wherein the screening mechanism is coaxially arranged inside the outer box, and the screening mechanism comprises a first separation ring and a screening disk, wherein the first separation ring is fixedly sleeved on the screening disk, and a plurality of first separation rings are concentrically and equidistantly arranged in a radial direction, wherein adjacent first separation rings above the screening disk form a screening groove, and adjacent separation rings below the screening disk form a material discharge groove;

[0012] The sieve plate inside the sieve groove is evenly distributed along the circumferential direction with sieve holes, and the sieve holes in each sieve groove are gradually reduced from the center of the sieve plate to the outside;

[0013] The bottom surfaces of the sifting grooves are arranged to increase in height at equal intervals from the center of the sifting plate to the outside;

[0014] A plurality of first separation rings between the outermost and innermost first separation rings are provided with material flow grooves, and an inclined slope for smooth transition of wolfberries to adjacent screening grooves is provided on the top surface of the screening plate at the material flow groove position;

[0015] An auxiliary screening mechanism is arranged above the screening mechanism, and the auxiliary screening mechanism includes a motor, a push block and a vibrator; the push block is loosely fitted in the screening groove, and an arc surface is arranged on one side of the push block, and the diameter line of the arc surface intersects with the inclined slope on the horizontal plane.

[0016] Furthermore, the plurality of push blocks are fixedly connected to an upper connecting rod through a connecting column, 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 is coaxially arranged with the sieving disc.

[0017] Furthermore, the lower end of the rotating shaft is rotatably connected to the positioning block via a rolling bearing, the positioning block is fixedly connected to the top surface of the vibrating machine, and the output end of the vibrating machine is fixedly connected to the sieve plate.

[0018] Furthermore, a connecting ring is circumferentially arranged on the outer wall of the upper end of the outermost first separating ring, and a plurality of T-shaped columns are circumferentially slidably sleeved on the connecting ring, one end of the T-shaped column is fixedly connected to the top surface of the fixed plate, and the fixed plate is fixedly connected to the inner wall of the outer box; a return spring is slidably sleeved on the T-shaped column between the fixed plate and the first separating ring.

[0019] Furthermore, two concentric guide sleeves with different diameters are extended downward from the top surface of the outer box, and the position between the two guide sleeves constitutes a feed trough. The motor is fixedly connected to the inner wall of the small-diameter guide sleeve through a mounting frame.

[0020] Furthermore, a material taking trough is provided on one side surface of the outer box below the screening mechanism, and a collecting mechanism is movably cooperated in the material taking trough;

[0021] The collecting mechanism comprises a bottom plate and a second separating ring, wherein the second separating ring is fixedly connected to the top surface of the bottom plate, and a plurality of second separating rings are concentrically and equidistantly arranged in a radial direction, and the plurality of first separating rings and the plurality of second separating rings are arranged in an up-and-down manner in a row;

[0022] A handle is arranged on the outer wall of the chassis near the material taking trough, and limit strips are arranged on the two symmetrical sides of the chassis, and the limit strips are used to cooperate with the limit grooves on the inner wall of the outer box.

[0023] Furthermore, a controller is fixedly mounted on an outer side wall of the outer box, and the controller is electrically connected to the motor and the vibrator through conductive wires.

[0024] Furthermore, a spiral guide plate is arranged inside the feed trough along the vertical direction, and the spiral guide plate is fixedly connected to the guide sleeve;

[0025] The feed trough is also provided with an interception mechanism, which includes an interception rod, a fixing rod and an operating rod; a plurality of fixing rods are arranged in parallel in the vertical direction, one end of the fixing rod rotates through the guide sleeve and extends to the inside of the feed trough, and a plurality of interception rods are arranged in parallel along the axial direction on the fixing rod located inside the feed trough;

[0026] The connecting body of the fixing rod and the intercepting rod is staggered with the spiral guide plate;

[0027] A linkage plate is fixedly connected to one end of a fixed rod located outside the guide sleeve, and the other ends of a plurality of linkage plates are rotatably connected to the same operating rod.

[0028] Furthermore, the linkage plate and the intercepting rod are vertically arranged on the same vertical plane.

[0029] Furthermore, the discharge port at the lower end of the feed chute and the material discharge chute are arranged alternately on the same horizontal plane.

[0030] The present invention has the following beneficial effects:

[0031] 1. The present invention sets a screening mechanism. The staff adds wolfberries into the outermost screening groove of the screening disk through the feed trough. The vibration of the vibrator can drive the entire screening disk to shake and screen. The setting of the push block in the screening groove can drive the push block to rotate circumferentially in the screening groove under the drive of the motor, so as to flatten the wolfberries in the screening groove. Because the aperture of the sieve holes in each screening groove from the center of the screening disk to the outside is gradually reduced, the wolfberries of the corresponding size will be discharged from the sieve holes of the corresponding size. The setting of the arc surface on the push block can push the wolfberries larger than the sieve holes at the corresponding position into the inner screening groove to achieve gradual screening.

[0032] 2. The present invention can increase the flow distance of wolfberry feed by setting the spiral guide plate in the feed trough, and the interception rod in the feed trough can intercept and screen out the branches and leaves in the wolfberry, and the smallest and largest screening holes on the screening plate are convenient for screening sand and gravel.

[0033] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of the present invention;

[0036] Figure 2 A vertical cross-sectional view of the present invention;

[0037] Figure 3 is another vertical cross-sectional view of the present invention;

[0038] Figure 4 It is a schematic diagram of the matching structure of the connecting body of the auxiliary screening mechanism, the screening mechanism and the fixed plate in the present invention;

[0039] Figure 5 It is a structural schematic diagram of the screening mechanism in the present invention;

[0040] Figure 6 It is a structural schematic diagram of the auxiliary screening mechanism in the present invention;

[0041] Figure 7 It is a schematic diagram of the overall structure of the fixing plate in the present invention;

[0042] Figure 8 It is a structural schematic diagram of the interception mechanism in the present invention;

[0043] Fig. 9 It is a structural schematic diagram of the collection mechanism in the present invention;

[0044] Fig.10 It is a perspective view of the outer box in the present invention.

[0045] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0046] 1. Outer box; 2. Collecting mechanism; 3. Controller; 4. Guide sleeve; 5. Intercepting mechanism; 6. Auxiliary screening mechanism; 7. Screening mechanism; 8. Fixed plate; 101. Material taking trough; 102. Material feeding trough; 103. Limiting groove; 201. Chassis; 202. Second separation ring; 203. Handle; 204. Limiting strip; 401. Mounting frame; 402. Spiral guide plate; 501. Intercepting rod; 502. Fixed rod; 503 , linkage plate; 504, operating rod; 601, motor; 602, push block; 603, vibrator; 701, first separating ring; 702, sieve plate; 703, connecting ring; 704, material trough; 705, inclined slope; 706, sieve hole; 801, reset spring; 802, T-shaped column; 6011, rotating shaft; 6021, connecting rod; 6022, arc surface; 6023, connecting column; 6031, positioning block. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0048] See also Figure 1-3 As shown in FIG. 9 , the present invention is a screening device with an automatic sorting function for selecting wolfberries, comprising an outer box 1 and a screening mechanism 7, wherein the screening mechanism 7 is coaxially arranged inside the outer box 1.

[0049] Two concentric guide sleeves 4 with different diameters are extended downward from the top surface of the outer box 1, and the position between the two guide sleeves 4 forms a feed trough 102. The motor 601 is fixedly connected to the inner wall of the small-diameter guide sleeve 4 through a mounting frame 401;

[0050] A material taking trough 101 is provided on one side of the outer box 1 below the screening mechanism 7, and a collecting mechanism 2 is movably fitted in the material taking trough 101;

[0051] The collecting mechanism 2 includes a bottom plate 201 and a second separation ring 202, the second separation ring 202 is fixedly connected to the top surface of the bottom plate 201, and a plurality of second separation rings 202 are concentrically and equidistantly arranged in the radial direction, the plurality of first separation rings 701 and the plurality of second separation rings 202 are arranged one by one in vertical alignment, and the arrangement of the second separation rings 202 facilitates the classification and storage of the wolfberries after classification;

[0052] A handle 203 is provided on the outer wall of the chassis 201 near the material taking trough 101, and limit strips 204 are provided on the two symmetrical sides of the chassis 201. The limit strips 204 are used to cooperate with the limit grooves 103 on the inner wall of the outer box 1. This setting is used to play a role of limit guide for the movement of the chassis 201;

[0053] A controller 3 is also fixedly mounted on an outer side wall of the outer box 1. The controller 3 is electrically connected to the motor 601 and the vibrator 603 through conductive wires. The controller 3 is used to control the electrical components in the device.

[0054] When the above arrangement is in use, wolfberries enter through the feed trough 102 and fall onto the screening mechanism 7. The screening of the screening mechanism 7 can achieve grading of the wolfberries. The graded wolfberries fall into adjacent second separating rings 202 on the chassis 201 respectively. The staff only needs to pull out the chassis 201 through the handle 203, and the staff can take out the graded wolfberries.

[0055] See also Figure 4 , 5 As shown in 7, the sieving mechanism 7 includes a first separation ring 701 and a sieving plate 702. The first separation ring 701 is fixedly sleeved on the sieving plate 702, and a plurality of first separation rings 701 are concentrically and equidistantly arranged in the radial direction. Adjacent first separation rings 701 above the sieving plate 702 form a sieving groove, and adjacent separation rings below the sieving plate 702 form a discharge groove.

[0056] The sieve plate 702 inside the sieve groove is evenly distributed along the circumference, and the apertures of the sieve holes 706 in each sieve groove are gradually reduced from the center of the sieve plate 702 to the outside, which can be used to screen the wolfberries according to their size;

[0057] The bottom surfaces of the sifting grooves are arranged to increase in height at equal intervals from the center of the sifting plate 702 outwards;

[0058] A plurality of first separation rings 701 between the outermost and innermost first separation rings 701 are provided with a material flow groove 704, and an inclined slope 705 for smooth transition of wolfberries to adjacent screening grooves is provided on the top surface of the screening plate 702 at the material flow groove 704, which facilitates the wolfberries to gradually enter the innermost screening groove from the outermost screening groove;

[0059] A connecting ring 703 is also circumferentially arranged on the outer wall of the upper end of the outermost first separation ring 701, and a plurality of T-shaped columns 802 are slidably sleeved on the connecting ring 703 along the circumferential direction. One end of the T-shaped column 802 is fixedly connected to the top surface of the fixed plate 8, and the fixed plate 8 is fixedly connected to the inner wall of the outer box 1. The setting of the T-shaped column 802 can play a limiting and guiding role in the up and down movement of the sieve plate 702; a reset spring 801 is slidably sleeved on the T-shaped column 802 between the fixed plate 8 and the first separation ring 701, and the setting of the reset spring 801 is used for resetting during vibration;

[0060] When the above arrangement is in use, wolfberries are added to the outermost screening trough, and the wolfberries can be discharged through the sieve holes 706 of different apertures through vibration screening, while the wolfberries larger than the corresponding sieve holes 706 enter the inner screening trough through the feeding trough 704.

[0061] See also Figure 4 and 6 As shown, an auxiliary screening mechanism 6 is arranged 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 loosely fitted in the screening groove, and a circular arc surface 6022 is arranged on one side of the push block 602, and the diameter line of the circular arc surface 6022 is arranged to intersect with the inclined slope 705 on the horizontal plane. This arrangement facilitates the push block 602 to flatten the wolfberries on one hand, and to push the wolfberries larger than the sieve holes 706 into the adjacent screening grooves on the other hand;

[0062] The plurality of push blocks 602 are fixedly connected to a connecting rod 6021 above through a connecting column 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. The rotating shaft 6011 is coaxially arranged with the sieving plate 702.

[0063] The lower end of the rotating shaft 6011 is rotatably connected to the positioning block 6031 through a rolling bearing, and 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 screening plate 702. The setting of the vibrating machine 603 can provide a power source for the vibration of the screening plate 702, so as to facilitate the vibration screening of the screening mechanism 7 in the up and down directions.

[0064] When the above arrangement is in use, the motor 601 drives the rotating shaft 6011 to rotate. When the rotating shaft 6011 rotates, the connecting rod 6021 drives the multiple push blocks 602 to rotate synchronously, thereby realizing the step-by-step transportation of wolfberries from the outer screening groove to the inner screening groove.

[0065] See also Figure 8 and 10As shown, a spiral guide plate 402 is provided inside the feed trough 102 along the vertical direction, and the spiral guide plate 402 is fixedly connected to the guide sleeve 4;

[0066] The feed trough 102 is also provided with an interception mechanism 5, which includes an interception rod 501, a fixed rod 502 and an operating rod 504; a plurality of fixed rods 502 are arranged in parallel in the vertical direction, one end of the fixed rod 502 rotates through the guide sleeve 4 and extends to the inside of the feed trough 102, and a plurality of interception rods 501 are arranged in parallel along the axial direction on the fixed rod 502 located inside the feed trough 102;

[0067] The connection body of the fixing rod 502 and the intercepting rod 501 is staggered with the spiral guide plate 402;

[0068] A linkage plate 503 is fixedly connected to one end of a fixed rod 502 located outside the guide sleeve 4, and the other ends of the plurality of linkage plates 503 are all rotatably connected to the same operating rod 504;

[0069] The linkage plate 503 and the interception rod 501 are vertically arranged on the same vertical plane;

[0070] The discharge port at the lower end of the feed trough 102 and the material trough 704 are arranged in a staggered manner on the same horizontal plane. This arrangement prevents the material from falling into the outermost screening trough and directly passing through the material trough 704 into the next screening trough, thereby improving the screening efficiency;

[0071] When the above arrangement is in use, wolfberries are transported through the spiral guide plate 402. During the transportation process, the intercepting rod 501 can intercept branches and leaves in the wolfberries to achieve the effect of screening out impurities. When the intercepted branches and leaves need to be taken out, the staff only needs to pull the operating rod 504 upwards. Under the action of multiple linkage plates 503, the intercepting rod 501 loses the interception of branches and leaves, and the branches and leaves fall into the screening plate 702 through the spiral guide plate 402, making it easy for the staff to take them out.

[0072] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A screening device with automatic sorting function for wolfberry selection, comprising an outer box (1) and a screening mechanism (7), wherein the screening mechanism (7) is coaxially arranged inside the outer box (1). Features: The screening mechanism (7) comprises a first separation ring (701) and a screening disk (702), wherein the first separation ring (701) is fixedly sleeved on the screening disk (702), and a plurality of first separation rings (701) are concentrically and equidistantly arranged in a radial direction, wherein adjacent first separation rings (701) above the screening disk (702) form a screening groove, and adjacent separation rings below the screening disk (702) form a discharge groove; The sieve plate (702) inside the sieve groove is evenly provided with sieve holes (706) along the circumferential direction, and the diameters of the sieve holes (706) in each sieve groove are gradually reduced from the center of the sieve plate (702) to the outside; The inner bottom surfaces of the sieving grooves are arranged to increase in height at equal intervals from the center of the sieving plate (702) outwards; A plurality of first separation rings (701) between the outermost and innermost first separation rings (701) are each provided with a material flow groove (704), and an inclined slope (705) for smooth transition of wolfberries to adjacent screening grooves is provided on the top surface of the screening plate (702) at the position of the material flow groove (704); 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 vibrator (603); the push block (602) is loosely fitted in the screening groove, a circular arc surface (6022) is arranged on one side of the push block (602), and a diameter line of the circular arc surface (6022) intersects with the inclined slope (705) on a horizontal plane; The plurality of push blocks (602) are fixedly connected to an upper connecting rod (6021) via a connecting column (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 sieving disc (702) are coaxially arranged; Two concentric guide sleeves (4) of different diameters are provided on the top surface of the outer box (1) and extend downward, and a feed trough (102) is formed between the two guide sleeves (4). The motor (601) is fixedly connected to the inner wall of the small-diameter guide sleeve (4) via a mounting frame (401).

2. A screening device with automatic sorting function for wolfberry selection as claimed in claim 1, It is characterized in that The lower end of the rotating shaft (6011) is rotatably connected to a positioning block (6031) via 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 sieve plate (702).

3. A screening device with automatic sorting function for wolfberry selection as claimed in claim 1, It is characterized in that A connecting ring (703) is also provided on the outer wall of the upper end of the outermost first separating ring (701) along the circumferential direction, and a plurality of T-shaped columns (802) are slidably sleeved on the connecting ring (703) along the circumferential direction, one end of the 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); a return spring (801) is slidably sleeved on the T-shaped column (802) between the fixing plate (8) and the first separating ring (701).

4. A screening device with automatic sorting function for wolfberry selection as claimed in claim 1, It is characterized in that A material taking trough (101) is provided on one side surface of the outer box (1) below the screening mechanism (7), and a collecting mechanism (2) is movably engaged in the material taking trough (101); The collecting mechanism (2) comprises a bottom plate (201) and a second separation ring (202), wherein the second separation ring (202) is fixedly connected to the top surface of the bottom plate (201), and a plurality of second separation rings (202) are arranged concentrically and equidistantly in a radial direction, and the plurality of first separation rings (701) and the plurality of second separation rings (202) are arranged in an up-and-down manner in a one-to-one manner; A handle (203) is provided on the outer wall of the chassis (201) near the material taking trough (101), and limit strips (204) are provided on two symmetrical side surfaces of the chassis (201), and the limit strips (204) are used to cooperate with the limit slots (103) on the inner wall of the outer box (1) in a clearance manner.

5. A screening device with automatic sorting function for wolfberry selection as claimed in claim 1, It is characterized in that A controller (3) is also fixedly mounted on an outer side wall of the outer box (1), and the controller (3) is electrically connected to the motor (601) and the vibrator (603) respectively through conductive wires.

6. A screening device with automatic sorting function for wolfberry selection as claimed in any one of claims 1 to 5, It is characterized in that A spiral guide plate (402) is arranged inside the feed trough (102) along the vertical direction, and the spiral guide plate (402) is fixedly connected to the guide sleeve (4); The feed trough (102) is also provided with an interception mechanism (5), the interception mechanism (5) comprising an interception rod (501), a fixing rod (502) and an operating rod (504); a plurality of the fixing rods (502) are arranged in parallel in the vertical direction, one end of the fixing rod (502) rotates through the guide sleeve (4) and extends to the inside of the feed trough (102), and a plurality of interception rods (501) are arranged in parallel along the axial direction on the fixing rod (502) located inside the feed trough (102); The connection body of the fixing rod (502) and the intercepting rod (501) is staggered with the spiral guide plate (402); A linkage plate (503) is fixedly connected to one end of a fixed rod (502) located outside the guide sleeve (4), and the other ends of the plurality of linkage plates (503) are all rotatably connected to the same operating rod (504).

7. A screening device with automatic sorting function for wolfberry selection as claimed in claim 6, It is characterized in that The linkage plate (503) and the interception rod (501) are vertically arranged on the same vertical plane.

8. A screening device with automatic sorting function for wolfberry selection as claimed in claim 6, It is characterized in that The discharge port at the lower end of the feed trough (102) and the discharge trough (704) are arranged alternately on the same horizontal plane.

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