CN114515699A

CN114515699A - Kumquat sieving mechanism

Info

Publication number: CN114515699A
Application number: CN202111666972.0A
Authority: CN
Inventors: 邱逸奎; 吴齐仟; 黄武强; 邱志强; 邱智月; 钟春林
Original assignee: Guangxi Rongan Yingfeng Technology Development Co ltd
Current assignee: Guangxi Rongan Yingfeng Technology Development Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-20
Anticipated expiration: 2041-12-31
Also published as: CN114515699B

Abstract

The invention provides a kumquat screening device, which comprises a rack, wherein a fruit laying platform is obliquely fixed at the upper part of the rack, a fruit falling hole is formed at the lower end of the fruit laying platform, a screening component is arranged below the fruit laying platform, a hinge shaft which is rotatably connected is arranged at the bottom of one end of the rack, which is close to the higher end of the fruit laying platform, a rotating plate is fixed on the hinge shaft, positioning blocks are fixed on two sides of one end, which is far away from the hinge shaft, of the rotating plate, inverted L-shaped supporting rods are fixed on two sides of the middle part of the rotating plate, a horizontal part at the upper end of each supporting rod extends towards the direction of each positioning block, a cross beam is fixed between the vertical parts of the two supporting rods, a steering engine is fixed at the bottom of the rack, an output shaft of the steering engine is fixedly connected with the hinge shaft, the kumquat screening device provided by the invention realizes the function of putting a large number of kumquats on the screening component by overturning the rotating plate, and lays down the instantaneously toppled kumquats by the fruit laying platform, so as to be convenient for better screening, the treatment efficiency is higher, and the human resource cost is low.

Description

Kumquat sieving mechanism

Technical Field

The invention relates to the technical field of kumquat screening, in particular to a kumquat screening device.

Background

Kumquat is a plant under the genus kumquat of the family Rutaceae, also called kumquat, kumquat and small tangerine, the kumquat is popular among people due to sweet and delicious taste and high vitamin C content, while the kumquat has big or small size in the planting process, the small kumquat may not grow completely and has poor taste, the sale is influenced, and the benefit of consumers is damaged, so the kumquat needs to be classified according to the size.

Kumquat is picked from an orchard and then is conveyed to a screening machine for screening, and currently, kumquat in baskets is mainly manually put on the screening machine by workers, so that the processing efficiency is low, and the labor cost is high.

Disclosure of Invention

In view of the above, the present invention is directed to a kumquat screening apparatus, so as to solve all or one of the problems mentioned in the background art.

Based on the purpose, the invention provides a cumquat screening device which comprises a rack, wherein a fruit laying platform is obliquely fixed on the upper portion of the rack, a fruit dropping hole is formed in the lower end of the fruit laying platform, a screening assembly is arranged below the fruit laying platform, a hinge shaft in rotary connection is arranged at the bottom of one end, close to the higher end of the fruit laying platform, of the rack, a rotating plate is fixed on the hinge shaft, positioning blocks are fixed on two sides of one end, far away from the hinge shaft, of the rotating plate, inverted L-shaped supporting rods are fixed on two sides of the middle of the rotating plate, horizontal portions of the upper ends of the supporting rods extend towards the direction of the positioning blocks, a cross beam is fixed between the vertical portions of the two supporting rods, a steering engine is fixed at the bottom of the rack, and an output shaft of the steering engine is fixedly connected with the hinge shaft.

Optionally, limit switches are respectively fixed to the upper portion of one end, close to the higher end of the fruit spreading table, of the rack and the bottom of the fruit spreading table, when the rotating plate is attached to the limit switch at the bottom of the rack, one end, far away from the hinge shaft, of the rotating plate is placed on the ground, and when the rotating plate is attached to the limit switch at the upper portion of the rack, the supporting rod is located above the higher end of the fruit spreading table.

Optionally, the screening subassembly includes that four are the pivot one that the rectangle summit distributes, four pivot one is located the below of spreading the fruit platform and rotates with the frame to be connected, the equidistant cover in the pivot is equipped with a plurality of runners, four the runner one-to-one in the pivot, the outer lane cover of every corresponding four runners is equipped with the conveyer belt, the direction of delivery of conveyer belt is by the lower end of spreading the fruit platform towards the higher end of spreading the fruit platform, the interval of conveyer belt is crescent to the higher end of spreading the fruit platform by the lower end of spreading the fruit platform, the frame bottom still is fixed with motor one, the output shaft of motor one passes through the belt and is connected with one of them pivot one, the inboard of conveyer belt is provided with a plurality of hoppers along its direction of delivery, it fixes in the frame to go out the hopper, it sets up to go out the hopper slope.

Optionally, the higher end of play hopper is connected with frame one side is articulated, the below of going out the hopper is provided with the regulation pole, the regulation pole is close to the one end of the higher end of play hopper and is connected with frame one side is articulated, is connected with same root connecting rod between a plurality of regulation poles, the regulation hole has been seted up to the opposite side tip of frame, and the one end of keeping away from the higher end of play hopper that is close to the regulation hole is provided with threaded connection's locking bolt, locking bolt wears to locate the regulation hole.

Optionally, the discharge hopper comprises a first discharge hopper and a second discharge hopper which are obliquely arranged, the higher end of the second discharge hopper is hinged to one side of the rack, the lower end of the second discharge hopper is sleeved with the sliding sleeve of the first discharge hopper, the second discharge hopper is erected on the adjusting rod, a rack is arranged on the bottom surface of the first discharge hopper along the length direction of the bottom surface, a second motor is fixed to the end portion of the adjusting rod, and a gear meshed with the rack is arranged on an output shaft of the second motor.

Optionally, the upper portion of the rack is further provided with a second rotating shaft which is connected in a rotating mode, the second rotating shaft is sleeved with a plurality of rollers which are arranged in the distribution gaps of the conveying belt one by one, and the second rotating shaft is arranged above the distribution gaps of the discharge hoppers one by one.

Optionally, a photoelectric sensor is horizontally fixed on the inner wall of the lower end of the first discharging hopper, and the photoelectric sensor is in signal connection with the second motor.

Optionally, the vertical portion of the supporting rod is an arc-shaped rod, and the arc-shaped rod arches towards one side far away from the hinge shaft.

From the above, the kumquat screening device provided by the invention realizes the function of putting a large number of kumquats on the screening assembly by turning the rotary plate, and lays the instantaneously poured kumquats flat by the fruit laying platform, so as to facilitate better screening, and has the advantages of higher treatment efficiency and low human resource cost.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

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

FIG. 2 is a schematic top view of the conveyor belt of the present invention;

FIG. 3 is a schematic view of the structure of the rotating plate of the present invention;

fig. 4 is a side schematic view of the discharge hopper of the present invention.

Wherein 1, a frame; 2. a first motor; 3. a first rotating shaft; 4. a rotating wheel; 5. a second rotating shaft; 6. a roller; 7. a discharge hopper; 8. a conveyor belt; 9. laying a fruit table; 10. a limit switch; 11. a steering engine; 12. rotating the plate; 13. positioning blocks; 14. a strut; 15. a hinge shaft; 16. a cross beam; 17. a connecting rod; 18. adjusting a rod; 19. locking the bolt; 20. an adjustment hole; 21. a gear; 22. a second motor; 23. a rack; 24. a first feeding hopper; 25. a feeding hopper II; 26. a photoelectric sensor.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

One or more embodiments of this description disclose a cumquat sieving mechanism, including frame 1, the upper portion slope of frame 1 is fixed with spreads fruit platform 9, the lower end of spreading fruit platform 9 has seted up the hole of falling fruit, the below of spreading fruit platform 9 is provided with the screening subassembly, frame 1 is close to spread the higher one end bottom of fruit platform 9 and is provided with the hinge 15 of rotating the connection, be fixed with on the hinge 15 and change board 12, the one end both sides that change board 12 kept away from hinge 15 are fixed with locating piece 13, the middle part both sides of changing board 12 are fixed with the branch 14 of falling L shape, the horizontal part of branch 14 upper end extends towards the direction of locating piece 13, two be fixed with crossbeam 16 between the vertical portion of branch 14, frame 1 bottom is fixed with steering wheel 11, the output shaft and the hinge 15 fixed connection of steering wheel 11.

As shown in fig. 1-4, the working principle of the device is that a steering engine 11 is used for driving a hinge shaft 15 to rotate so as to drive a rotating plate 12 to rotate, a worker picks kumquats from a garden and then puts the kumquats into a basket, the steering engine 11 drives the hinge shaft 15 to rotate so as to drive the rotating plate 12 to rotate to the ground, then the basket is pushed to one end of the rotating plate 12 far away from the hinge shaft 15, positioning blocks 13 are arranged at two sides of the rotating plate 12, the basket is placed between the two positioning blocks 13, then the steering engine 11 drives the hinge shaft 15 to rotate so as to drive the rotating plate 12 to rotate towards the fruit laying platform 9, the rotating plate 12 rotates the basket from the ground to the higher end of the fruit laying platform 9, in the rotating process, a cross beam 16 between vertical parts of a support rod 14 supports the basket so as to avoid the basket from falling down when the basket rotates to the vertical direction, after an opening of the basket crosses the vertical line, the kumquats in the basket fall to the higher end of the fruit laying platform 9, the horizontal part of the supporting rod 14 is used for preventing the basket from turning over when the kumquats are poured out, the kumquats roll from the higher end to the lower end of the fruit paving table 9, the fruit paving table 9 is used for uniformly paving the cumquat piles poured out instantly, the paved kumquats fall onto the screening component from fruit falling holes at the lower end of the fruit paving table 9, for example, the fruit paving table 9 can be replaced by a conventional belt-shaped conveying structure to travel at a controlled speed, so that the kumquats can stably travel, the kumquats are prevented from being collided and damaged, the screening component screens the kumquats according to the size, the kumquats in the basket fall onto the fruit paving table 9, the basket is taken out, then the hinge shaft 15 is driven by the steering engine 11 to rotate, the rotating plate 12 rotates to the ground again, the basket filled with the kumquats is continuously added onto the rotating plate 12, then the rotating plate 12 rotates to the higher end of the fruit paving table 9, and the kumquats in the basket fall onto the fruit paving table 9.

According to the kumquat screening device provided by the invention, the function of putting a large number of kumquats on the screening assembly is realized through the overturning of the rotating plate 12, and the instantaneously poured kumquats are paved through the fruit paving table 9, so that the better screening is facilitated, the processing efficiency is higher, and the cost of human resources is low.

In some optional embodiments, limit switches 10 are respectively fixed on the upper portion and the bottom portion of one end of the machine frame 1 close to the higher end of the fruit laying platform 9, when the rotating plate 12 is attached to the limit switch 10 on the bottom portion of the machine frame 1, one end of the rotating plate 12 far away from the hinge shaft 15 is placed on the ground, and when the rotating plate 12 is attached to the limit switch 10 on the upper portion of the machine frame 1, the supporting rod 14 is located above the higher end of the fruit laying platform 9.

In some optional embodiments, the screening assembly includes four first rotating shafts 3 distributed at the top of a rectangle, the four first rotating shafts 3 are located below the fruit laying platform 9 and are rotatably connected with the frame 1, the first rotating shafts 3 are equidistantly sleeved with a plurality of rotating wheels 4, the four rotating wheels 4 on the first rotating shafts 3 are in one-to-one correspondence, the outer ring of each corresponding four rotating wheels 4 is sleeved with a conveying belt 8, the conveying direction of the conveying belt 8 is from the lower end of the fruit laying platform 9 to the higher end of the fruit laying platform 9, the distance between the conveying belts 8 is gradually increased from the lower end of the fruit laying platform 9 to the higher end of the fruit laying platform 9, the bottom of the frame 1 is further fixed with a first motor 2, the output shaft of the first motor 2 is connected with one of the first rotating shafts 3 through a belt, for example, the first motor 2 can also be directly connected with one of the first rotating shafts 3 through a coupling, the inner side of the conveying belt 8 is provided with a plurality of discharge hoppers 7 along the conveying direction thereof, the discharge hopper 7 is fixed on the frame 1, and the discharge hopper 7 is obliquely arranged.

Four rotating shafts 3 are distributed in a long rectangular peak, the rotating shafts 3 are arranged on a rack 1 and are rotatably connected with the rack 1, each rotating shaft 3 is sleeved with a plurality of rotating wheels 4, the rotating wheels 4 on the four rotating shafts 3 correspond to each other one by one, each rotating wheel 4 of each rotating shaft 3 forms a group, a conveying belt 8 is sleeved on the four rotating wheels 4 of the same group, a plurality of conveying belts 8 are sleeved on the four rotating shafts 3, the conveying direction of the conveying belts 8 is from the lower end of a fruit paving table 9 to the higher end of the fruit paving table 9, the distance between the conveying belts 8 is gradually changed and gradually increases from the lower end to the higher end of the fruit paving table 9, a motor I2 is fixed at the bottom of the rack 1, an output shaft of the motor I2 is connected with one rotating shaft 3 through a belt, the motor I2 drives the rotating shaft I3 to rotate, the rotating shaft I3 drives the conveying belt 8 to rotate so as to realize the conveying of the kumquats, a plurality of discharge hoppers 7 are arranged on the inner side of the conveying belt 8, go out hopper 7 slope setting and fix in frame 1, go out hopper 7 and set up along conveyer belt 8's direction of delivery, conveyer belt 8's interval is non-equidistance, lower end by paving fruit platform 9 is crescent to the higher end, the kumquat is fallen on paving fruit platform 9, by paving fruit platform 9 and spreading, then fall on conveyer belt 8 from the lower end of paving fruit platform 9, conveyer belt 8 carries the kumquat, the 8 interval of conveyer belt is crescent, the less kumquat of size falls out from conveyer belt 8 gap earlier, the great kumquat of size spills from conveyer belt 8's rear end gap, and then realize the screening to the kumquat size, the kumquat of whereabouts falls on going out hopper 7, place the basket under every goes out hopper 7, in order to accept the kumquat of corresponding size.

In some optional embodiments, the higher end of the discharging hopper 7 is hinged to one side of the frame 1, an adjusting rod 18 is arranged below the discharging hopper 7, one end, close to the higher end of the discharging hopper 7, of the adjusting rod 18 is hinged to one side of the frame 1, the same connecting rod 17 is connected between the adjusting rods 18, an adjusting hole 20 is formed in the end portion of the other side of the frame 1, a locking bolt 19 in threaded connection is arranged at one end, far away from the higher end of the discharging hopper 7, of the adjusting rod 18, close to the adjusting hole 20, and the locking bolt 19 penetrates through the adjusting hole 20.

One end of an adjusting rod 18 is hinged with the frame 1, so that the other end of the adjusting rod 18 can rotate, the other end of the adjusting rod 18 close to an adjusting hole 20 is provided with a locking bolt 19, the locking bolt 19 is arranged in the adjusting hole 20 in a penetrating way, so that the rotating angle of the adjusting rod 18 is limited in the adjusting hole 20, after the adjustment is completed, the adjusting rod 18 is locked in the adjusting hole 20 by rotating the locking bolt 19, so that the adjusting rod 18 is fixed, other adjusting rods 18 are linked through a connecting rod 17, taking the view angle of figure 4 as an example, the connecting rod 17 is arranged at the position of the adjusting rod 18 close to the left side of the frame 1, so that the adjustment of all the adjusting rods 18 is realized by only adjusting one adjusting rod 18, the higher end of the discharging hopper 7 is hinged with the frame 1, so that the discharging hopper 7 can also rotate, the discharging hopper 7 is arranged on the adjusting rod 18, and the adjustment of the inclination of the discharging hopper 7 is realized by adjusting rod 18, so as to adjust the slope of hopper 7 according to the kind of screening fruit.

In some optional embodiments, the discharge hopper 7 comprises a first discharge hopper 24 and a second discharge hopper 25 which are obliquely arranged, the higher end of the second discharge hopper 25 is hinged to one side of the frame 1, the first discharge hopper 24 is slidably sleeved at the lower end of the second discharge hopper 25, the second discharge hopper 25 is erected on the adjusting rod 18, a rack 23 is arranged on the bottom surface of the first discharge hopper 24 along the length direction of the bottom surface, a second motor 22 is fixed at the end of the adjusting rod 18, and a gear 21 meshed with the rack 23 is arranged on an output shaft of the second motor 22.

The second motor 22 can drive the gear 21 to rotate, the gear 21 is meshed with the rack 23, the first lower hopper 24 slides along the length direction along with the rotation of the gear 21, the kumquats are screened and then fall on the second lower hopper 25, then slide downwards and fall on the first lower hopper 24, and then fall into a basket placed below the first lower hopper from the lower end of the first lower hopper 24, the kumquats which continuously fall are stacked under the lower end of the first lower hopper 24 along with the screening of the kumquats, and other positions of the basket are still empty, therefore, the rack 23 is driven by the gear 21 to rotate to drive the first lower hopper 24 to slide along the length direction, so that the falling point of the kumquats can be adjusted, the falling point is adjusted to be above an empty area in the basket, the screening speed of each discharging hopper 7 is different, the kumquats received by some baskets are faster and some are slower, and therefore each first lower hopper 24 is independently adjusted by the second independent motor 22, do not interfere with each other.

In some optional embodiments, a plurality of rotating shafts two 5 are further disposed on the upper portion of the frame 1, the rotating shafts two 5 are rotatably connected, a plurality of rollers 6 are sleeved on the rotating shafts two 5, the rollers 6 are disposed in the distribution gaps of the conveying belts 8 one by one, the rotating shafts two 5 are disposed above the distribution gaps of the discharging hoppers 7 one by one, the cumquats are non-standard spherical, the cumquats fall on the conveying belts 8, the positions of the cumquats may not be correct, and some cumquats cannot be correctly screened due to the horizontal arrangement, for this purpose, a plurality of rotating shafts two 5 are disposed, a plurality of rollers 6 are disposed on the rotating shafts two 5, and when the cumquats pass through the rollers 6, the rollers 6 turn the cumquats over, and the cumquats crossing the conveying belts 8 are vertically placed in the gaps of the conveying belts 8, so as to facilitate correct screening of the sizes of the cumquats.

In some alternative embodiments, a photoelectric sensor 26 is horizontally fixed on the inner wall of the lower end of the lower hopper 24, the photoelectric sensor 26 is in signal connection with the second motor 22, the photoelectric sensor 26 is horizontally arranged on the inner wall of the lower end of the first discharge hopper 24, the sweeping direction is parallel to the width direction of the first lower hopper 24, cumquats rolling in the first lower hopper 24 can be detected by the photoelectric sensor 26, cumquats falling from the first lower hopper 24 fall into a basket, when the cumquats are too high in accumulation, the cumquats at the lower end of the first feeding hopper 24 cannot roll down into the basket, so that the cumquats begin to accumulate at the lower end of the first feeding hopper 24, when the photoelectric sensor 26 detects that the cumquat is accumulated at the lower end of the first feeding hopper 24 and cannot roll off normally, a signal is fed back to the second motor 22, the second motor 22 drives the gear 21 to rotate so as to drive the first lower hopper 24 to slide, and the falling point is adjusted to be above a hollow area in the basket.

In some alternative embodiments, the vertical portion of the supporting rod 14 is an arc-shaped rod, and the arc-shaped rod is arched towards the side away from the hinge shaft 15, as shown in fig. 1 and 3, the vertical portion of the supporting rod 14 is an arc-shaped rod with a certain curvature, and the arched direction of the arc-shaped rod is towards the side away from the hinge shaft 15, so that after the rotating plate 12 is turned over, the basket can slide forwards along the arc-shaped surface of the arc-shaped rod, so that the basket is inclined towards the fruit laying platform 9, and the kumquat leaves the basket conveniently.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. The cumquat screening device is characterized by comprising a rack (1), wherein a fruit paving table (9) is obliquely and fixedly arranged on the upper portion of the rack (1), a fruit dropping hole is formed in the lower end of the fruit paving table (9), a screening assembly is arranged below the fruit paving table (9), a hinge shaft (15) in rotating connection is arranged at the bottom of one end, close to the higher end of the fruit paving table (9), of the rack (1), a rotating plate (12) is fixedly arranged on the hinge shaft (15), positioning blocks (13) are fixedly arranged on two sides of one end, far away from the hinge shaft (15), of the rotating plate (12), inverted-L-shaped supporting rods (14) are fixedly arranged on two sides of the middle of the rotating plate (12), the horizontal portion of the upper end of each supporting rod (14) extends towards the direction of the corresponding positioning block (13), a cross beam (16) is fixedly arranged between the vertical portions of the two supporting rods (14), and a steering engine (11) is fixedly arranged at the bottom of the rack (1), and an output shaft of the steering engine (11) is fixedly connected with the hinge shaft (15).

2. The kumquat screening device according to claim 1, wherein limit switches (10) are respectively fixed on the upper portion and the bottom of one end of the rack (1) close to the higher end of the fruit spreading table (9), when the rotating plate (12) is attached to the limit switch (10) on the bottom of the rack (1), one end of the rotating plate (12) far away from the hinge shaft (15) is placed on the ground, and when the rotating plate (12) is attached to the limit switch (10) on the upper portion of the rack (1), the supporting rod (14) is located above the higher end of the fruit spreading table (9).

3. The kumquat screening device according to claim 2, wherein the screening assembly comprises four first rotating shafts (3) distributed at the vertexes of a rectangle, the four first rotating shafts (3) are positioned below the fruit spreading table (9) and are rotatably connected with the frame (1), the first rotating shafts (3) are equidistantly sleeved with a plurality of rotating wheels (4), the rotating wheels (4) on the four first rotating shafts (3) correspond to one another, a conveying belt (8) is sleeved on the outer ring of each corresponding four rotating wheels (4), the conveying direction of the conveying belt (8) is from the lower end of the fruit spreading table (9) to the upper end of the fruit spreading table (9), the distance between the conveying belts (8) is gradually increased from the lower end of the fruit spreading table (9) to the upper end of the fruit spreading table (9), a first motor (2) is further fixed at the bottom of the frame (1), and the output shaft of the first motor (2) is connected with one of the first rotating shafts (3) through a belt, the inner side of the conveying belt (8) is provided with a plurality of discharging hoppers (7) along the conveying direction, the discharging hoppers (7) are fixed on the rack (1), and the discharging hoppers (7) are obliquely arranged.

4. The kumquat screening device according to claim 3, characterized in that the higher end of the discharging hopper (7) is hinged to one side of the frame (1), an adjusting rod (18) is arranged below the discharging hopper (7), one end of the adjusting rod (18) close to the higher end of the discharging hopper (7) is hinged to one side of the frame (1), the same connecting rod (17) is connected between the adjusting rods (18), an adjusting hole (20) is formed in the end portion of the other side of the frame (1), one end of the adjusting rod (18) close to the adjusting hole (20) far away from the higher end of the discharging hopper (7) is provided with a locking bolt (19) in threaded connection, and the locking bolt (19) penetrates through the adjusting hole (20).

5. The kumquat screening device according to claim 4, wherein the discharging hopper (7) comprises a first discharging hopper (24) and a second discharging hopper (25) which are obliquely arranged, the higher end of the second discharging hopper (25) is hinged with one side of the frame (1), the first discharging hopper (24) is slidably sleeved at the lower end of the second discharging hopper (25), the second discharging hopper (25) is erected on the adjusting rod (18), the bottom surface of the first discharging hopper (24) is provided with a rack (23) along the length direction thereof, the end part of the adjusting rod (18) is fixed with a second motor (22), and the output shaft of the second motor (22) is provided with a gear (21) meshed with the rack (23).

6. The kumquat screening device according to claim 5, wherein a plurality of second rotating shafts (5) are rotatably connected to the upper portion of the frame (1), a plurality of rollers (6) are sleeved on the second rotating shafts (5), the rollers (6) are arranged in the distribution gaps of the conveyer belt (8) one by one, and the second rotating shafts (5) are arranged above the distribution gaps of the discharge hopper (7) one by one.

7. The kumquat screening apparatus according to claim 6, wherein a photoelectric sensor (26) is horizontally fixed on the inner wall of the lower end of the first feeding hopper (24), and the photoelectric sensor (26) is in signal connection with the second motor (22).

8. Kumquat screening apparatus according to claim 7, characterized in that the vertical portion of the strut (14) is an arc-shaped bar that is arched towards the side remote from the hinge axis (15).