CN113305010B - Oranges and tangerines size sorting device - Google Patents

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

A citrus size sorting device

technical field

The present application relates to the field of sorting devices, and in particular, to a sorting device for citrus sizes.

Background technique

At present, the existing citrus size sorters generally have the following shortcomings: 1. Only citrus without bellflowers can be graded by size; 2. In actual operation, only the size grading of citrus can be determined in advance, and then the screening mechanism can be replaced. Different grades and sizes of fruits are screened; 3. The plane structure is used for grade screening, which occupies a large area. For this reason, the present invention proposes a citrus size sorting device.

SUMMARY OF THE INVENTION

The embodiment of the present application provides a citrus size sorting device, which can efficiently screen citrus of various grades and sizes, and has a small footprint and can be screened with bellflowers.

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

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

The sorting and collecting device includes a sorting mechanism and a collecting disc arranged below the sorting mechanism;

The sorting mechanism includes a first telescopic clamp arm and a second telescopic clamp arm arranged on the outer surface of the sleeve along the circumferential direction;

There is a certain angle between the first telescopic clamp arm and the second telescopic clamp arm;

The ends of the first telescopic clamp arm and the second telescopic clamp arm are respectively provided with a first end rod and a second end rod;

The first end rod and the second end rod are in a figure-eight structure;

One end of the first end rod and the second end rod close to the sleeve is provided with a gap for the movement of platycodon grandiflorum;

The collection disc is provided with a plurality of annular concentric tracks for collecting different sizes of graded citrus dropped from the sorting mechanism from the inside to the outside;

The collection discs are arranged obliquely, and a collection port for obtaining graded citrus of corresponding size is opened at the lowest point of each of the annular concentric tracks.

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

A plurality of 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 guiding mechanism for conveying the citrus to different sorting and collecting devices;

A plurality of funnel discs are arranged above the sleeve;

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

A plurality of the funnel trays are respectively connected with a plurality of through pipes for conveying the citrus to the corresponding sorting and collecting devices.

Optionally, the dividing and guiding mechanism is provided with a plurality of openable and closable dividing plates;

A plurality of the channel dividing plates are respectively connected with a plurality of the funnel discs.

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

the main rod is fixedly connected with the sleeve;

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

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

The end of the main rod is provided with a protrusion for clamping the spring;

The outer surface of the telescopic rod is provided with a slideway matching the protrusion.

Optionally, one end of the spring is connected with a stepper motor for adjusting the elasticity of the spring of the working part to adapt to the size sorting of different citrus in different regions;

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

Optionally, it also includes: a controller;

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

Optionally, the collection disc is provided with a through-beam photoelectric switch for detecting whether the fruit has fallen;

The through-beam photoelectric switch is electrically connected with the controller.

Optionally, the top of the first end rod and the top of the second end rod are both provided with blocking posts for preventing the citrus 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 shapes of the first end rod and the second end rod are both elliptical-like.

It can be seen from the above technical solutions that the embodiment of the present application has the following advantages: by setting the first telescopic clamping arm and the second telescopic clamping arm in the citrus size sorting device, when the rotating rod rotates, the centrifugal force generated by the rotation can be used to push the first telescopic clamping arm. The first telescopic clamp arm and the second telescopic clamp arm are telescopic. Since there is a certain angle between the first telescopic clamp arm and the second telescopic clamp arm, with the extension of the first telescopic clamp arm and the second telescopic clamp arm, the first telescopic clamp arm and the second telescopic clamp arm are extended. The distance between the telescopic clamp arm and the end of the second telescopic clamp arm will gradually increase, so as to achieve efficient screening of citrus of various grades; The ends of the first end rod and the second end rod close to the sleeve are provided with a gap for the movement of the bellflower, which can be screened with bellflower; the vertical structure is used for sorting, and the floor space is small.

Description of drawings

1 is a schematic structural diagram of a citrus size sorting device in an embodiment of the application;

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

3 is a schematic structural diagram of a first end rod in an embodiment of the application;

Fig. 4 is the structural representation of the collecting disc in the embodiment of the application;

5 is a schematic structural diagram of a first telescopic clamp arm in an embodiment of the present application;

6 is a schematic diagram of the connection structure of the main rod and the telescopic rod in the embodiment of the application;

7 is a schematic diagram of the installation structure of the funnel plate and the sleeve in the embodiment of the application;

Fig. 8 is the top view of the sleeve in the embodiment of the application;

9 is a schematic structural diagram of a guide mechanism in an embodiment of the application;

FIG. 10 is a schematic diagram of the spring tightness adjustment in the embodiment of the application;

Fig. 11 is the wiring diagram of the stepping motor in the embodiment of the application;

Among them, the reference numerals are:

1-Conveying mechanism, 2-Separating guide mechanism, 3-Funnel tray, 4-Sorting mechanism, 5-Collecting disc, 6-Rotating rod, 7-Sleeve, 8-Through pipe, 9-Motor, 21-Point Road plate, 22-electromagnet, 41-first telescopic clamp arm, 42-second telescopic clamp arm, 43-first end rod, 44-second end rod, 51-circular concentric track, 52- Collection port, 411-main rod, 412- telescopic rod, 413-spring, 414-protrusion, 415-stepper motor, 431-notch, 432-block post.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The inventors found that there are currently three ways to sort citrus sizes. The first is to use the photoelectric sensor to detect the passing time of the navel orange to indirectly obtain the size information of the fruit, so as to control the start of the corresponding motor through the PLC, so that navel oranges within a certain specification range and navel oranges larger than the maximum size and smaller than the minimum size enter different track, so as to realize automatic sorting, and the sorting specifications can be adjusted only by changing the control program, but this method has low sorting efficiency and high sorting cost; the second is that there are a large number of sorting circles distributed on the continuous drum, When the drum moves, it drives the citrus to move, so that the citrus smaller than a certain size is dropped, and the remaining citrus larger than this size is forwarded for collection. After multiple screenings, this method will cause errors or failures in sorting citrus with bellflowers, and the screening components must be replaced when sorting citrus of different grades. There is a possibility of crushing and destroying the citrus during screening at the boundary of the screening structure; the third is Pour the citrus into the single-row track wall, the motor drives the drive roller to drive the conveyor belt to rotate under the cooperation of the direction-changing roller and the driven roller, and the conveyor belt drives the citrus to move to the right. Under the action of the single-row track wall, the citrus is arranged in a single row. The big citrus goes through the sorting track, the small citrus moves down through the sorting track and is driven by the conveyor belt, and is buffered by the buffer wheel to be discharged from the discharge port. , to complete the classification and screening, this method also cannot complete the size classification of citrus with Platycodon grandiflorum, and it is to filter out the citrus larger than a certain size, if it needs to be divided into multiple grades, it needs to be filtered multiple times.

The present application provides an embodiment of a citrus size sorting device, please refer to FIG. 1 to FIG. 4 for details.

The citrus size sorting device in this embodiment includes: a conveying mechanism 1 and a vertical multi-stage sorting device connected to the conveying mechanism 1. The vertical multi-stage sorting device includes a vertically arranged rotating rod 6 for driving the rotating rod 6. A rotating motor 9, a sleeve 7 fixed on the rotating rod 6, and a sorting and collecting device arranged on the sleeve 7. The sorting and collecting device includes a sorting mechanism 4 and a collecting disc arranged below the sorting mechanism 4. 5. The sorting mechanism 4 includes a first telescopic clamp arm 41 and a second telescopic clamp arm 42 arranged on the outer surface of the sleeve 7 in the circumferential direction. There is a certain clamp between the first telescopic clamp arm 41 and the second telescopic clamp arm 42. The ends of the first telescopic clamp arm 41 and the second telescopic clamp arm 42 are respectively provided with a first end rod 43 and a second end rod 44, and the first end rod 43 and the second end rod 44 are in a figure-eight shape Structure, one end of the first end rod member 43 and the second end rod member 44 close to the sleeve 7 is provided with a gap 431 for the movement of the platycodon grandiflorum, and the collection disc 5 is provided with a plurality of from the inside to the outside. The circular concentric rails 51 of the different sizes of graded citrus dropped by the sorting mechanism 4, the collection disc 5 is arranged obliquely, and the lowest point of each circular concentric rail 51 is provided with a collection for obtaining the corresponding size graded citrus. mouth 52.

It should be noted that: by setting the first telescopic clamping arm 41 and the second telescopic clamping arm 42 in the citrus size sorting device, when the rotating rod 6 rotates, the centrifugal force generated by the rotation can be used to push the first telescopic clamping arm 41 and the second telescopic clamping arm 41 and the second telescopic clamping arm 42. The telescopic clamp arm 42 is telescopic. Since there is a certain angle between the first telescopic clamp arm 41 and the second telescopic clamp arm 42, with the extension of the first telescopic clamp arm 41 and the second telescopic clamp arm 42, the first telescopic clamp arm 42 is extended. The distance between the arm 41 and the end of the second telescopic clamping arm 42 will gradually increase, so as to achieve efficient screening of citrus of various grades. Stepless sorting; because the first end rod 43 and the second end rod 44 are in a figure-eight structure, and the ends of the first end rod 43 and the second end rod 44 close to the sleeve 7 are provided with a supply of platycodon Through the gap 431, it can be screened with platycodon; by adopting a vertical structure for sorting, the floor space is small.

The above is the first embodiment of a citrus size sorting device provided by the embodiment of the present application, and the following is the second embodiment of a citrus size sorting device provided by the embodiment of the present application. For details, please refer to FIG. 1 to FIG. 11 .

The citrus size sorting device in this embodiment includes: a conveying mechanism 1 and a vertical multi-stage sorting device connected to the conveying mechanism 1. Specifically, the conveying mechanism 1 may be a conveyor belt-type conveying mechanism 1; The device includes 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. The sorting and collecting device includes a sorting and collecting device. A mechanism 4 and a collection disc 5 arranged below the sorting mechanism 4. The sorting mechanism 4 includes a first telescopic clamp arm 41 and a second telescopic clamp arm 42 arranged on the outer surface of the sleeve 7 in the circumferential direction. The first telescopic clamp There is a certain angle between the arm 41 and the second telescopic clamp arm 42. Specifically, the angle between the first telescopic clamp arm 41 and the second telescopic clamp arm 42 may be 5°-30°; 41 and the ends of the second telescopic clamp arm 42 are respectively provided with a first end rod 43 and a second end rod 44, the first end rod 43 and the second end rod 44 are in a figure-eight structure, and the first end rod 43 and the end of the second end rod 44 close to the sleeve 7 are both provided with a gap 431 for the movement of platycodon The circular concentric tracks 51 for grading citrus of different sizes, the collecting discs 5 are arranged obliquely, and the lowest point of each circular concentric track 51 is provided with a collecting port 52 for obtaining citrus of corresponding sizes.

The number of sorting and collecting devices can be multiple, and multiple sorting and collecting devices are sequentially arranged on the sleeve 7 from top to bottom to form a multi-layer structure; As shown in Fig. 7 and Fig. 8, the guide mechanism 2 of the collection device is provided with a plurality of funnel discs 3 above the sleeve 7. The guide mechanism 2 is respectively connected with the plurality of funnel discs 3, and the plurality of funnel discs 3 are respectively connected and useful. For conveying the citrus to the plurality of through pipes 8 corresponding to the sorting and collecting device, specifically, the through pipes 8 are located inside the sleeve 7, and the sleeve 7 is provided with an opening for the through pipes 8 to pass through.

It should be noted that: the citrus going to different sorting and collecting devices will fall into the corresponding funnel tray 3 through the sorting mechanism 2. The funnel tray 3, the through pipe 8 and the sleeve 7 are rotated as a whole, and the through pipe 8 is placed In the sleeve 7, with the rotation of the rotating rod 6 and the sleeve 7, the fruit falls into the sorting mechanism 4 of different layers.

As shown in FIG. 9 , the split guide mechanism 2 is provided with a plurality of openable and closable channel plates 21 , and the plurality of channel plates 21 are respectively connected with a plurality of funnel trays 3 , and different funnel trays 3 are correspondingly connected to different through pipes 8. It is used to transport citrus to different sorting and collecting devices for sorting and collection.

It can be understood that the whole structure of the citrus size sorting device is not squeezed. In order to achieve a better protection effect on the fruit, some buffer materials can be appropriately added for protection according to the actual situation.

As shown in FIG. 5 and FIG. 6 , both the first telescopic clamp arm 41 and the second telescopic clamp arm 42 include a main rod 411 and a telescopic rod 412 slidably connected to the main rod 411 . The main rod 411 is fixedly connected to the sleeve 7 and surrounds the main rod 411 . The sleeve 7 performs a rotating motion; the main rod 411 and the telescopic rod 412 are both hollow structures, a spring 413 is provided in the main rod 411 and the telescopic rod 412, and the end of the main rod 411 is provided with a protrusion 414 for clamping the spring 413, and the telescopic rod The outer surface of 412 is provided with a slideway matching with the protrusion 414, so that it can slide freely. Specifically, the end of the telescopic rod 412 close to the main rod 411 is provided with an annular limit block for limiting the position, so as to ensure the extension limit position of the telescopic rod 412 and ensure the normal expansion and contraction of the telescopic rod 412 .

It should be noted that: after the citrus falls into the sorting mechanism 4, it rotates with the sorting mechanism 4 and generates centrifugal force. Under the action of the centrifugal force, the telescopic rod 412 is continuously squeezed by the citrus to stretch the telescopic rod 412 outward. When the gap created between the first telescopic clamping arm 41 and the second telescopic clamping arm 42 is large enough, the outermost citrus is thrown out of the sorting mechanism 4 and then dropped to the collecting disc 5 . At the same time, the citrus at the rear end is also thrown outward due to centrifugal force, but the telescopic rod 412 has been shrunk due to the elastic force, and at this time, the next outermost citrus starts to be sorted. The fruits move to the outermost end in turn and are sorted.

As shown in FIG. 5 , one end of the spring 413 is connected to the stepping motor 415, which is used to adjust the tightness of the spring 413 of the working part to adapt to the sorting of different citrus sizes in different regions. Specifically, the spring 413 rotates with the stepping motor 415, and more The same stepping driver is shared with the stepping motor 415 ; the other end of the spring 413 is connected with the end of the telescopic rod 412 . It can be understood that the rotation of the spring 413 can be changed to the method of vertical meshing of the main and auxiliary helical gears, and the rotation of the main gear is driven by a single stepping motor 415 to drive each auxiliary gear to rotate to adjust the tightness of the spring 413, and it can also be removed. The stepping motor 415 (ie, does not adjust the tightness of the spring 413), directly selects the spring 413 of a specific specification, so that the adaptability can be omitted for direct design.

It should be noted that: F=kx, k is the stiffness coefficient, x is the deformation amount of the spring 413, F is the force on the spring 413, and other conditions are certain, the longer the spring 413 or the more turns of the spring 413 per unit length, The smaller the k value. When the spring 413 actually rotates, the section of the spring 413 between the stepper 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 does not deform, so The stiffness coefficient of the working part spring 413 is changed. Specifically, as shown in FIG. 10 , the end of the main rod 411 is provided with a protrusion 414 for clamping the spring 413, so that the spring 413 changes the length of the working part of the spring 413 under the rotation of the stepping motor 415 (so that the stiffness of the working part spring 413 is changed). coefficient change), and then under the same rotation speed, the telescopic rods 412 can obtain different elongation lengths, so as to obtain different gaps between the two telescopic rods 412, so as to adapt to fruits with different densities (different citrus volume and weight ratio) The size screening can meet the needs of different users, the same citrus only needs to be adjusted for the first time, and it is easy to use.

It can be understood that, the head end of the main rod 411 can be designed in the form of a cover, which is convenient for connecting the spring 413 to the stepping motor 415 for adjustment.

It also includes: a controller, which is electrically connected to the conveying mechanism 1 and the vertical multi-stage sorting device respectively.

The collection disc 5 is provided with an opposite-beam photoelectric switch for detecting whether the fruit has fallen, the opposite-beam photoelectric switch is electrically connected with the controller, and the branching mechanism 2 is provided with an opening and closing switch for controlling the opening and closing of the dividing plate 21. The opening and closing mechanism is electrically connected to the controller. Specifically, the channel dividing plate 21 can be an iron channel dividing plate 21. The iron channel dividing plate 21 is symmetrically arranged on the left and right sides of the guiding mechanism 2, and the iron channel dividing plate 21 The plate 21 is provided with an electromagnet 22 for controlling the opening and closing of the iron channel dividing plate 21 by switching on and off, and the electromagnet 22 is electrically connected to the controller.

It should be noted that: the collection discs 5 of a plurality of sorting and collecting devices are detected by the beam-type photoelectric switch, and it is detected whether there is no fruit falling for more than two seconds. The switch sends information to the controller. Under the control of the controller, the distributing mechanism 2 controls the on-off of the electromagnets 22 on both sides, thereby realizing the change of the channel, so that the fruits enter different sorting and collecting devices and control the conveying mechanism 1 action or not. If the fruit of a sorting and collecting device has been sorted, and the beam photoelectric switch has not been blocked for more than two seconds, the controller will output a signal to control the power of the electromagnet 22 to change the action of the iron dividing plate 21 and Whether the conveying mechanism 1 is activated or not makes the citrus enter the funnel trays 3 of different levels and the pipes 8 fall into the sorting mechanism 4 of different levels for sorting, otherwise the conveying mechanism 1 stops and the citrus stays waiting for sorting.

Specifically, as shown in FIG. 3 , the tops of the first end rod 43 and the second end rod 44 are both provided with blocking posts 432 for preventing the citrus 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 rotated 30 degrees to both sides in the vertical direction Place it so that the distance between the two bars increases instantly after the citrus reaches the end bar, and the citrus falls.

The shapes of the first end rod 43 and the second end rod 44 may both be elliptical-like. It can be understood that, in order to make the citrus fall easily, the lower half of the ellipse below the notch 431 is as narrow as possible.

Specifically, the outer circumference of the collecting disc 5 is connected with a cylindrical protective iron net, that is, the cylindrical protective iron net is sleeved on the plurality of collecting discs 5 to prevent the citrus from accidentally falling out.

In this embodiment, the number of sorting and collecting devices is three, that is, there are three layers of sorting and collecting structures, and the controller is a PLC with CPU222 relay output of Siemens S7-200 series. The control sequence of each mechanism of the citrus size sorting device is: the main power is turned on, (the external button controls the PLC to give a plurality of stepping pulses to the stepping motor 415 to adjust the tension of the spring 413), the motor 9 of the rotating rod 6 is turned on, and the sorting mechanism 2 is controlled. The lane is controlled, the conveying mechanism 1 is started for sorting, the conveying mechanism 1 is stopped, the sorting and guiding mechanism 2 is stopped, the motor 9 of the rotating rod 6 is stopped, and the main power supply is disconnected. I/O allocation table, as shown in Table 1 below.

Table 1I/O allocation table

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims (10)

1. A citrus size sorting device, comprising: a conveying mechanism and a vertical multi-stage sorting device connected with the conveying mechanism; The vertical multi-stage sorting device includes a vertically arranged rotating rod, a motor for driving the rotating rod to rotate, a sleeve fixed on the rotating rod, and a sorting and collecting device arranged on the sleeve ; The sorting and collecting device includes a sorting mechanism and a collecting disc arranged below the sorting mechanism; The sorting mechanism includes a first telescopic clamp arm and a second telescopic clamp arm arranged on the outer surface of the sleeve along the circumferential direction; There is a certain angle between the first telescopic clamp arm and the second telescopic clamp arm; The ends of the first telescopic clamp arm and the second telescopic clamp arm are respectively provided with a first end rod and a second end rod; The first end rod and the second end rod are in a figure-eight structure; One end of the first end rod and the second end rod close to the sleeve is provided with a gap for the movement of platycodon grandiflorum; The collection disc is provided with a plurality of annular concentric tracks for collecting different sizes of graded citrus dropped from the sorting mechanism from the inside to the outside; The collection discs are arranged obliquely, and a collection port for obtaining graded citrus of corresponding size is opened at the lowest point of each of the annular concentric tracks. 2. The citrus size sorting device according to claim 1, wherein the number of the sorting and collecting devices is multiple; A plurality of 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 guiding mechanism for conveying the citrus to different sorting and collecting devices; A plurality of funnel discs are arranged above the sleeve; the guide mechanism is respectively connected with a plurality of the funnel discs; A plurality of the funnel trays are respectively connected with a plurality of through pipes for conveying the citrus to the corresponding sorting and collecting devices. 3. The citrus size sorting device according to claim 2, characterized in that, a plurality of openable and closable lane plates are arranged on the separating guide mechanism; A plurality of the channel dividing plates are respectively connected with a plurality of the funnel discs. 4. The citrus size sorting device according to claim 1, wherein the first telescopic clamp arm and the second telescopic clamp arm both comprise a main rod and a telescopic rod slidably connected to the main rod; the main rod is fixedly connected with the sleeve; Both the main rod and the telescopic rod are hollow structures; Springs are arranged in the main rod and the telescopic rod; The end of the main rod is provided with a protrusion for clamping the spring; The outer surface of the telescopic rod is provided with a slideway matching the protrusion. 5. The citrus size sorting device according to claim 4, wherein one end of the spring is connected with a stepper motor for adjusting the tightness of the spring of the working part to adapt to the size sorting of different citrus in different regions; The other end of the spring is connected with the end of the telescopic rod. 6. The citrus size sorting device according to claim 1, characterized in that, further comprising: a controller; The controller is respectively electrically connected with the conveying mechanism and the vertical multi-stage sorting device. 7. The citrus size sorting device according to claim 6, wherein the collection disc is provided with an opposite-beam photoelectric switch for detecting whether the fruit is dropped; The through-beam photoelectric switch is electrically connected with the controller. 8 . The citrus size sorting device according to claim 1 , wherein the tops of the first end rod and the second end rod are both provided with a tangerine for preventing citrus from accidentally flying out of the sorting mechanism. 9 . stop post. 9 . The citrus size sorting device according to claim 1 , wherein the included angle between the first end rod and the second end rod is 60 degrees. 10 . 10 . The citrus size sorting device according to claim 1 , wherein the first end rod and the second end rod are both elliptical-like in shape. 11 .

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