CN113305010A

CN113305010A - Oranges and tangerines size sorting device

Info

Publication number: CN113305010A
Application number: CN202110633196.8A
Authority: CN
Inventors: 何中杰; 石智伟
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-08-27
Anticipated expiration: 2041-06-07
Also published as: CN113305010B

Abstract

The application discloses oranges and tangerines size sorting device includes: the device comprises a conveying mechanism and a vertical multi-stage sorting device; the vertical multi-stage sorting device comprises a rotating rod, a motor, a sleeve and a sorting and collecting device; the sorting and collecting device comprises a sorting mechanism and a collecting disc; the sorting mechanism comprises a first telescopic clamping arm and a second telescopic clamping arm; a certain included angle is formed between the first telescopic clamping arm and the second telescopic clamping arm; the tail ends of the first telescopic clamping arm and the second telescopic clamping arm are respectively provided with a first tail end rod piece and a second tail end rod piece; the first end rod piece and the second end rod piece are in a splayed structure; gaps are formed in the ends, close to the sleeve, of the first end rod piece and the second end rod piece; a plurality of circular concentric tracks are arranged on the collecting disc from inside to outside; the collection disc is obliquely arranged, and a collection port is formed in the lowest point of each circular concentric track. The invention can efficiently screen oranges of various grades, has small floor area and can screen the oranges with platycodon grandiflorum.

Description

Oranges and tangerines size sorting device

Technical Field

The application relates to the field of sorting devices, especially, relate to a oranges and tangerines size sorting device.

Background

At present, the following shortcomings of the existing orange size sorting machine generally exist: 1. size grading can only be performed on citrus without platycodon grandiflorum; 2. during actual operation, only the size of the oranges can be determined in advance in a grading manner, and then the screening mechanism is replaced to screen the fruits with different grades; 3. the invention provides a citrus size sorting device, which is large in occupied area due to the fact that a plane type structure is adopted for grade screening.

Disclosure of Invention

The embodiment of the application provides a oranges and tangerines size sorting device for can screen the oranges and tangerines of various grades of sizes high-efficiently, and area is little, can take the balloonflower to screen.

In view of this, the present application provides a oranges and tangerines size sorting device, includes: the device comprises a conveying mechanism and a vertical multi-stage sorting device connected with the conveying mechanism;

the vertical multi-stage sorting device comprises a rotating rod, a motor, a sleeve and a sorting and collecting device, wherein the rotating rod is vertically arranged, the motor is used for driving the rotating rod to rotate, the sleeve is fixed on the rotating rod, and the sorting and collecting device is arranged on the sleeve;

the sorting and collecting device comprises a sorting mechanism and a collecting disc arranged below the sorting mechanism;

the sorting mechanism comprises a first telescopic clamping arm and a second telescopic clamping arm which are arranged on the outer surface of the sleeve along the circumferential direction;

a certain included angle is formed between the first telescopic clamping arm and the second telescopic clamping arm;

the tail ends of the first telescopic clamping arm and the second telescopic clamping arm are respectively provided with a first tail end rod piece and a second tail end rod piece;

the first end rod piece and the second end rod piece are in a splayed structure;

gaps for the platycodon grandiflorum to move through are formed in one ends, close to the sleeve, of the first end rod piece and the second end rod piece;

a plurality of circular concentric tracks for collecting the graded oranges of different sizes falling off from the sorting mechanism are arranged on the collecting disc from inside to outside;

the collection disc sets up in an inclined manner, and every the concentric orbital minimum point department of circle shape all offers the collection mouth that is used for acquireing corresponding size classification oranges and tangerines.

Optionally, the number of the sorting and collecting devices is multiple;

the sorting and collecting devices are sequentially arranged on the sleeve from top to bottom;

the outlet of the conveying mechanism is connected with a separating and guiding mechanism used for conveying the oranges to different sorting and collecting devices;

a plurality of hopper discs are arranged above the sleeve;

the guide dividing mechanism is respectively connected with the plurality of funnel discs;

a plurality of funnel dish is connected with respectively and is used for carrying oranges and tangerines to corresponding a plurality of siphunculus of letter sorting collection device.

Optionally, a plurality of openable and closable shunt plates are arranged on the shunt mechanism;

the plurality of lane plates are respectively connected with the plurality of funnel disks.

Optionally, the first and second telescopic clamp arms each include a main rod and a telescopic rod slidably connected to the main rod;

the main rod is fixedly connected with the sleeve;

the main rod and the telescopic rod are both hollow structures;

springs are arranged in the main rod and the telescopic rod;

the tail end of the main rod is provided with a bulge for clamping the spring;

the outer surface of the telescopic rod is provided with a slideway matched with the bulge.

Optionally, one end of the spring is connected with a stepping motor, and the spring is used for adjusting the tightness of the spring of the working part to adapt to size sorting of different oranges in different regions;

the other end of the spring is connected with the tail end of the telescopic rod.

Optionally, the method further comprises: a controller;

the controller is respectively electrically connected with the conveying mechanism and the vertical multi-stage sorting device.

Optionally, a correlation photoelectric switch for detecting whether the fruits fall is arranged on the collecting disc;

the correlation type photoelectric switch is electrically connected with the controller.

Optionally, the top of each of the first end rod and the second end rod is provided with a stop pillar for preventing the citrus fruit from accidentally flying out of the sorting mechanism.

Optionally, the included angle between the first end rod and the second end rod is 60 degrees.

Optionally, the first end stem and the second end stem are both oval-like in shape.

According to the technical scheme, the embodiment of the application has the following advantages: according to the citrus size sorting device, the first telescopic clamp arm and the second telescopic clamp arm are arranged, when the rotating rod rotates, the centrifugal force generated by rotation can be utilized to push the first telescopic clamp arm and the second telescopic clamp arm to stretch, and a certain included angle is formed between the first telescopic clamp arm and the second telescopic clamp arm, so that the distance between the tail ends of the first telescopic clamp arm and the second telescopic clamp arm is gradually increased along with the extension of the first telescopic clamp arm and the second telescopic clamp arm, and the efficient screening of citrus of various grades is realized; because the first end rod piece and the second end rod piece are in a splayed structure, and the ends of the first end rod piece and the second end rod piece close to the sleeve are respectively provided with a notch for the platycodon grandiflorum to move through, the platycodon grandiflorum can be screened; the vertical structure is adopted for sorting, so that the occupied area is small.

Drawings

FIG. 1 is a schematic structural view of a citrus fruit size sorting apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a sorting mechanism in an embodiment of the present application;

FIG. 3 is a schematic view of a first end rod member according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a collection disk in an embodiment of the present application;

FIG. 5 is a schematic view of a first retractable arm assembly according to an embodiment of the present application;

FIG. 6 is a schematic view of the connection structure of the main rod and the telescopic rod in the embodiment of the present application;

FIG. 7 is a schematic view of an installation structure of the funnel tray and the sleeve in the embodiment of the present application;

FIG. 8 is a top view of a sleeve in an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a separating and guiding mechanism in an embodiment of the present application;

FIG. 10 is a schematic diagram of spring tension adjustment in an embodiment of the present application;

FIG. 11 is a wiring diagram of a stepping motor in the embodiment of the present application;

wherein the reference numerals are:

1-conveying mechanism, 2-guide separating mechanism, 3-funnel disk, 4-sorting mechanism, 5-collecting disk, 6-rotating rod, 7-sleeve, 8-through pipe, 9-motor, 21-track separating plate, 22-electromagnet, 41-first telescopic clamping arm, 42-second telescopic clamping arm, 43-first end rod piece, 44-second end rod piece, 51-circular concentric track, 52-collecting port, 411-main rod, 412-telescopic rod, 413-spring, 414-bulge, 415-stepping motor, 431-notch and 432-baffle column.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The inventor finds that: at present, three existing methods for sorting the sizes of oranges are provided. The first method is that the size information of the fruits is indirectly obtained by detecting the passing time of navel oranges by using a photoelectric sensor, so that the corresponding motors are controlled to be started by a PLC (programmable logic controller), the navel oranges in a certain specification interval and the navel oranges which are larger than the maximum specification and smaller than the minimum specification enter different tracks, automatic sorting is realized, and the sorting specification can be adjusted by only changing a control program, but the method has low sorting efficiency and high sorting cost; secondly, a large number of sorting rings are distributed on a continuous roller, the roller drives oranges to move when moving, oranges smaller than a certain specification drop, the rest oranges larger than the specification are conveyed forwards to be collected, if the oranges need to be sorted into a plurality of specifications, the roller with the sorting rings with different specifications needs to be replaced to carry out screening for a plurality of times, sorting errors or failures can occur when the oranges with platycodon grandiflorum are sorted, screening components need to be replaced when the oranges with different grades are sorted, and the oranges are extruded and damaged when screening exists at the boundary of a screening structure; the third is to pour oranges and tangerines into single track wall in, the motor drives the driving roller at the turning roller, the driven voller cooperation drives the conveyer belt and rotates, the conveyer belt drives oranges and tangerines and moves to the right side, oranges and tangerines are single row arrangement under single track wall's effect, big oranges and tangerines are through categorised track, little oranges and tangerines pass categorised track and move down under the conveyer belt drives, discharge gate ejection of compact from the discharge gate through the buffering wheel buffering, big oranges and tangerines are followed categorised track and are followed the discharge gate ejection of compact under the dead weight drive, accomplish the categorised screening, this method can not accomplish the oranges and tangerines size classification of taking the balloonflower equally, and be greater than certain big and little oranges and tangerines and filters out, if need filter many times to divide a plurality of grades.

The present application provides one embodiment of a citrus fruit size sorting apparatus, and particularly refers to fig. 1 to 4.

Oranges and tangerines size sorting device in this embodiment includes: the device comprises a conveying mechanism 1 and a vertical multi-stage sorting device connected with the conveying mechanism 1, wherein the vertical multi-stage sorting device comprises a rotating rod 6 which is vertically arranged, a motor 9 for driving the rotating rod 6 to rotate, a sleeve 7 which is fixed on the rotating rod 6 and a sorting and collecting device which is arranged on the sleeve 7, the sorting and collecting device comprises a sorting mechanism 4 and a collecting disc 5 which is arranged below the sorting mechanism 4, the sorting mechanism 4 comprises a first telescopic clamping arm 41 and a second telescopic clamping arm 42 which are arranged on the outer surface of the sleeve 7 along the circumferential direction, a certain included angle is formed between the first telescopic clamping arm 41 and the second telescopic clamping arm 42, a first end rod piece 43 and a second end rod piece 44 are respectively arranged at the tail ends of the first telescopic clamping arm 41 and the second telescopic clamping arm 42, the first end rod piece 43 and the second end rod piece 44 are in a splayed structure, one ends of the first end rod piece 43 and the second end rod piece 44, which are close to the sleeve 7, are respectively provided with a notch 431 for platycodon root to move through, collect disc 5 and be provided with a plurality of ring shape concentric orbit 51 that are used for collecting the categorised oranges and tangerines of equidimension that drop from sorting mechanism 4 from inside to outside, collect disc 5 slope setting, and every ring shape concentric orbit 51's minimum point department all offers and is used for acquireing the collection mouth 52 that corresponds the categorised oranges and tangerines of size.

It should be noted that: according to the citrus size sorting device, the first telescopic clamping arm 41 and the second telescopic clamping arm 42 are arranged, when the rotating rod 6 rotates, centrifugal force generated by rotation can be utilized to push the first telescopic clamping arm 41 and the second telescopic clamping arm 42 to stretch, and a certain included angle is formed between the first telescopic clamping arm 41 and the second telescopic clamping arm 42, so that the distance between the tail ends of the first telescopic clamping arm 41 and the second telescopic clamping arm 42 can be gradually increased along with the extension of the first telescopic clamping arm 41 and the second telescopic clamping arm 42, so that the efficient screening of citrus of various grades is realized, the sorting structure of citrus of different grades is not required to be changed in advance for distinguishing, and the nearly stepless sorting is realized; because the first end rod 43 and the second end rod 44 are in a splayed structure, and the ends of the first end rod 43 and the second end rod 44 close to the sleeve 7 are both provided with notches 431 for the platycodon grandiflorum to move through, the platycodon grandiflorum can be screened; the vertical structure is adopted for sorting, so that the occupied area is small.

The above is a first embodiment of the citrus fruit size sorting device provided in the embodiments of the present application, and the following is a second embodiment of the citrus fruit size sorting device provided in the embodiments of the present application, please refer to fig. 1 to 11 specifically.

Oranges and tangerines size sorting device in this embodiment includes: the device comprises a conveying mechanism 1 and a vertical multi-stage sorting device connected with the conveying mechanism 1, wherein the conveying mechanism 1 can be a conveyor belt type conveying mechanism 1; the vertical multi-stage sorting device comprises a vertically arranged rotating rod 6, a motor 9 for driving the rotating rod 6 to rotate, a sleeve 7 fixed on the rotating rod 6 and a sorting and collecting device arranged on the sleeve 7, wherein the sorting and collecting device comprises a sorting mechanism 4 and a collecting disc 5 arranged below the sorting mechanism 4, the sorting mechanism 4 comprises a first telescopic clamping arm 41 and a second telescopic clamping arm 42 which are arranged on the outer surface of the sleeve 7 along the circumferential direction, a certain included angle is formed between the first telescopic clamping arm 41 and the second telescopic clamping arm 42, and particularly, the included angle between the first telescopic clamping arm 41 and the second telescopic clamping arm 42 can be 5-30 degrees; the end of first flexible arm lock 41 and the flexible arm lock 42 of second is provided with first end member 43 and the terminal member 44 of second respectively, first end member 43 is eight style of calligraphy structures with the terminal member 44 of second, first end member 43 and the terminal member 44 of second are close to the one end of sleeve 7 and all offer the breach 431 that supplies with the balloonflower motion to pass through, it is provided with a plurality of ring shape concentric rail 51 that are used for collecting the hierarchical oranges and tangerines of equidimension that drop from sorting mechanism 4 to collect disc 5 from inside to outside, it sets up to collect disc 5 slope, and the lowest point department of every ring shape concentric rail 51 all offers the collection mouth 52 that is used for obtaining the hierarchical oranges and tangerines of corresponding size.

The number of the sorting and collecting devices can be multiple, and the sorting and collecting devices are sequentially arranged on the sleeve 7 from top to bottom to form a multilayer structure; the exit linkage of conveying mechanism 1 has the branch that is used for carrying oranges and tangerines to different letter sorting collection device to lead mechanism 2, as shown in fig. 7 and fig. 8, sleeve 7 top is provided with a plurality of hopper trays 3, divide and lead mechanism 2 and be connected with a plurality of hopper trays 3 respectively, a plurality of hopper trays 3 are connected with respectively and are used for carrying oranges and tangerines to a plurality of siphunculus 8 that correspond letter sorting collection device, and is concrete, inside siphunculus 8 is located sleeve 7, and set up the opening that supplies siphunculus 8 to wear out on the sleeve 7.

It should be noted that: during oranges and tangerines that go to different letter sorting collection device can fall into corresponding funnel dish 3 through dividing guide mechanism 2, funnel dish 3, siphunculus 8 and sleeve 7 rotate for a whole, and siphunculus 8 is placed in sleeve 7 along with dwang 6 and sleeve 7 are rotatory, makes the fruit fall into the letter sorting mechanism 4 on different layers.

As shown in fig. 9, a plurality of openable and closable dividing plates 21 are arranged on the dividing and guiding mechanism 2, the dividing plates 21 are respectively connected with the hopper trays 3, and different hopper trays 3 are correspondingly connected with different through pipes 8 for conveying oranges to different sorting and collecting devices for sorting and collecting.

It can be understood that: this oranges and tangerines size sorting device's whole structure does not have the extrusion condition, in order to reach a better protection effect to the fruit, also can suitably add some buffer material according to actual conditions and protect.

As shown in fig. 5 and 6, each of the first and second

telescopic clamp arms

41 and 42 includes a main rod 411 and a telescopic rod 412 slidably connected to the main rod 411, and the main rod 411 is fixedly connected to the sleeve 7 and rotates around the sleeve 7; the main rod 411 and the telescopic rod 412 are both of a hollow structure, a spring 413 is arranged in the main rod 411 and the telescopic rod 412, a protrusion 414 used for clamping the spring 413 is arranged at the tail end of the main rod 411, and a slide way matched with the protrusion 414 is arranged on the outer surface of the telescopic rod 412 to enable the telescopic rod to freely slide. Specifically, one end of the telescopic rod 412 close to the main rod 411 is provided with an annular limiting block for limiting, so as to ensure the extended limit position of the telescopic rod 412 and ensure the normal extension and retraction of the telescopic rod 412.

It should be noted that: oranges and tangerines fall into behind sorting mechanism 4 and rotate and produce centrifugal force along with sorting mechanism 4, under the effect of centrifugal force, telescopic link 412 is constantly extruded by oranges and tangerines and makes telescopic link 412 outwards tensile, and when the gap that produces between first telescopic clamp arm 41 and the second telescopic clamp arm 42 was enough big, the oranges and tangerines of periphery were thrown away and are dropped collection disc 5 behind sorting mechanism 4. Meanwhile, the citrus fruit at the rear end is thrown outwards along with the citrus fruit due to centrifugal force, but the telescopic rod 412 is contracted due to elastic force, and the next citrus fruit at the outermost end starts to be sorted. The fruits are moved to the outermost end in sequence and sorted.

As shown in fig. 5, one end of the spring 413 is connected to the stepping motor 415, and is configured to adjust the tightness of the spring 413 of the working portion to adapt to size sorting of different citrus fruits in different regions, specifically, the spring 413 rotates along with the stepping motor 415, and multiple pairs of stepping motors 415 share the same stepping driver; the other end of the spring 413 is connected to the end of the telescopic rod 412. It can be understood that the rotation of the spring 413 may be changed to a method of vertically engaging the primary and secondary bevel gears, the tightness of the spring 413 may be adjusted by rotating the primary gear driven by the single stepping motor 415 to drive each secondary gear to rotate, and meanwhile, the stepping motor 415 may be eliminated (i.e., the tightness of the spring 413 is not adjusted), and the spring 413 with a specific specification is directly selected, so that the design is directly performed without the adaptability.

It should be noted that: k is the stiffness coefficient, x is the deformation of the spring 413, F is the force applied to the spring 413, and when other conditions are fixed, the longer the spring 413 is or the more turns of the spring 413 per unit length is, the smaller the k value is. When the spring 413 actually follows the rotation, the section of the spring 413 between the stepping motor 415 and the protrusion 414 is compressed or stretched, and the section of the spring 413 between the protrusion 414 and the end of the telescopic rod 412 only changes the length and is not deformed, so that the stiffness coefficient of the spring 413 of the working part changes. Specifically, as shown in fig. 10, the end of the main rod 411 is provided with a protrusion 414 for clamping the spring 413, the spring 413 is made to change the length of the working part of the spring 413 under the rotation of the stepping motor 415 (so that the stiffness coefficient of the working part spring 413 is changed), and then the telescopic rods 412 are made to obtain different extension lengths at the same rotation speed, so that different gaps are obtained between the two telescopic rods 412, so as to adapt to the size screening of fruits with different densities (different volume and weight ratios of different oranges), thereby meeting the requirements of different users, and the same kind of oranges only need to be adjusted for the first time, so that the use is convenient.

It will be appreciated that the head end of the main rod 411 may be configured as a cover to facilitate adjustment of the spring 413 coupled to the stepper motor 415.

Further comprising: and the controller is respectively and electrically connected with the conveying mechanism 1 and the vertical multi-stage sorting device.

Collect and be provided with the correlation formula photoelectric switch that is used for detecting whether have the fruit to drop on the disc 5, correlation formula photoelectric switch is connected with the controller electricity, divide and lead and be provided with the mechanism that opens and shuts that is used for controlling minute guidance tape 21 to open and shut on mechanism 2, the mechanism that opens and shuts is connected with the controller electricity, it is specific, minute guidance tape 21 can be iron minute guidance tape 21, iron minute guidance tape 21 symmetry sets up in the left and right sides that divides and lead mechanism 2, and be provided with the electro-magnet 22 that is used for dividing guidance tape 21 to open and shut through on-off control iron on the iron minute guidance tape 21, electro-magnet 22 is connected with the controller electricity.

It should be noted that: utilize correlation formula photoelectric switch to detect a plurality of letter sorting collection device's collection disc 5, detect whether it is longer than two seconds and do not have the fruit and drop, if it is longer than two seconds and do not have the fruit and drop, correlation formula photoelectric switch sends information to the controller, divides lead mechanism 2 to control the break-make electricity of both sides electro-magnet 22 under the control of controller, and then realizes the transform of passageway, makes the fruit get into different letter sorting collection device and control conveyor 1's action whether. If the fruit of one sorting and collecting device is sorted completely and the correlation type photoelectric switch is not shaded for more than two seconds, the controller outputs a signal to control the electromagnet 22 to be electrified so as to change the action condition of the iron dividing plate 21 and the starting of the conveying mechanism 1, so that the oranges enter the funnel discs 3 and the through pipes 8 of different levels and fall into the sorting mechanisms 4 of different layers for sorting, otherwise, the conveying mechanism 1 stops and the oranges stay for sorting.

Specifically, as shown in fig. 3, the top of each of the first end rod 43 and the second end rod 44 is provided with a stop post 432 for preventing the citrus fruit from accidentally flying out of the sorting mechanism 4.

Preferably, the included angle between the first end rod 43 and the second end rod 44 may be 60 degrees, that is, the first end rod 43 and the second end rod 44 are respectively placed by rotating 30 degrees towards two sides in the vertical direction, so that the distance between the two rods is instantly increased after the citrus reaches the end rods, and the citrus drops.

The first end bar 43 and the second end bar 44 may each be oval-like in shape. It will be appreciated that the lower half of the ellipse below the gap 431 is as narrow as possible in order to facilitate the fall of the citrus fruit.

Specifically, the outer circumference of the collecting disks 5 is connected with a cylindrical protective iron net, namely the cylindrical protective iron net is sleeved on the collecting disks 5 to prevent the oranges from accidentally falling out.

In the embodiment, the number of the sorting and collecting devices is 3, namely, the three-layer sorting and collecting structure is provided, and the controller is a PLC of relay type output of the CPU222 of Siemens S7-200 series. The control sequence of each mechanism of the orange size sorting device is as follows: the general power supply is started, (the PLC is controlled by an external key to control the tightness of the springs 413 of the stepping motor 415 for a plurality of stepping pulses), the motor 9 of the rotating rod 6 is started, the branch guide mechanism 2 is controlled to select a channel, the conveying mechanism 1 is started to sort, the conveying mechanism 1 stops working, the branch guide mechanism 2 stops working, the motor 9 of the rotating rod 6 stops working, and the general power supply is disconnected. I/O Allocation Table, as in Table 1 below.

TABLE 1I/O Allocation Table

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A oranges and tangerines size sorting device which characterized in that includes: the device comprises a conveying mechanism and a vertical multi-stage sorting device connected with the conveying mechanism;

2. The citrus size sorting device according to claim 1, wherein the number of the sorting and collecting devices is plural;

a plurality of hopper discs are arranged above the sleeve;

3. The citrus sizing and sorting device according to claim 2, wherein a plurality of openable and closable dividing plates are provided on the dividing and guiding mechanism;

4. The citrus sizing and sorting device of claim 1, wherein the first and second telescopic clamp arms each include a main rod and a telescopic rod slidably connected to the main rod;

the main rod is fixedly connected with the sleeve;

the main rod and the telescopic rod are both hollow structures;

springs are arranged in the main rod and the telescopic rod;

the tail end of the main rod is provided with a bulge for clamping the spring;

5. The citrus fruit size sorting device according to claim 4, wherein one end of the spring is connected with a stepping motor for adjusting the tightness of the spring of the working part to adapt to the size sorting of different citrus fruits in different regions;

6. The citrus sizing device according to claim 1, further comprising: a controller;

7. The citrus sizing and sorting device according to claim 6, wherein the collection disk is provided with a correlation photoelectric switch for detecting whether a fruit is dropped;

8. The citrus sizing and sorting device according to claim 1, wherein the first end bar and the second end bar are each provided at a top with a stop post for preventing citrus from accidentally flying out of the sorting mechanism.

9. The citrus sizing device according to claim 1, wherein the angle between the first end bar and the second end bar is 60 degrees.

10. The citrus sizing device according to claim 1, wherein the first end bar and the second end bar are each oval-like in shape.