CN113333294A

CN113333294A - Pineapple screening device and method

Info

Publication number: CN113333294A
Application number: CN202110777254.4A
Authority: CN
Inventors: 陈美娇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-09-03

Abstract

The invention discloses a pineapple screening device and a screening method thereof, and the pineapple screening device comprises a top plate, wherein the lower surface of the top plate is fixedly connected with a mounting frame, a conveying device is arranged inside the mounting frame, two rotating plates are arranged below the top plate, a fixed seat is arranged above one side of each rotating plate, a sliding block is slidably and alternately connected inside the fixed seat, supporting rods are arranged on the front surface and the back surface of the sliding block, two hydraulic cylinders are arranged on the front surface of the mounting frame, one end of a pushing rod is fixedly connected with a pushing plate, and a rotating device is arranged at the top of each rotating plate. According to the pineapple classifying device, the rotating plate rotates by taking the axis of the second round rod as the center of a circle by utilizing the arrangement mode that the rotating plate is matched with the hydraulic cylinder and the pineapple is pushed to the bottom of the rotating plate, the bottom of the supporting rod is driven to move by the rotating plate, and then the pushing rod is driven to move by the operation of the hydraulic cylinder, so that the automatic classifying and collecting of the pineapple are realized, a large amount of manpower and material resources are reduced, and the classification of the pineapple is more flexible.

Description

Pineapple screening device and method

Technical Field

The invention relates to the field of screening devices, in particular to a screening device for pineapples and a screening method thereof.

Background

Pineapple is native to amazon river basin of brazil and yerba mate in south america, and is transferred from brazil to china in the 16 th century. Has been streamed to the whole tropical region. The edible part of the flower mainly comprises a rachis with increased meat quality and flowers spirally arranged on the periphery, the flowers are usually not firm, the reserved flowers are surrounded by splinters to form a cavity, and atrophic stamens and style are stored in the cavity. The fibers of the leaves are very tough and can be used in fabrics, ropes, netting and paper making.

In selling the pineapple, the price of general great pineapple of size will be higher than the price of less pineapple of size, this just makes and need classify the size of the pineapple of same batch before selling, because the pineapple belongs to cylindrical form fruit, this just makes when measuring the size of pineapple, generally measures the size of pineapple through slide caliper, but this kind of mode of measuring the pineapple one by one can waste a large amount of manpower and materials, makes the workman need waste a large amount of time and measures the pineapple, just also makes the measurement of pineapple not nimble enough.

Disclosure of Invention

The invention aims to provide a device and a method for screening pineapples, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a screening device for pineapples and a screening method thereof comprise a top plate, wherein a mounting frame is fixedly connected to the lower surface of the top plate, a conveying device is arranged inside the mounting frame, two rotating plates are arranged below the top plate, a fixed seat is arranged above one side of each rotating plate, the top end of each fixed seat is fixedly connected with the lower surface of the top plate, a sliding block is connected with the inside of each fixed seat in a sliding and penetrating manner, supporting rods are arranged on the front side and the back side of each sliding block respectively, a first round rod is connected to each end of each supporting rod in a rotating and penetrating manner, a fixed plate is fixedly connected to the inner wall of one side of each supporting rod, a first contact switch is fixedly connected to one side of each fixed plate, two hydraulic cylinders are arranged on the front side of the mounting frame, a pushing rod is connected to the output end of each hydraulic cylinder in a transmission manner, a push plate is fixedly connected to one end of each pushing rod, and two guide rails are fixedly connected to the back side of the mounting frame in a penetrating manner, and a rotating device is arranged at the top of the rotating plate.

Preferably, the slewer includes second round bar and torsional spring, the one end and the commentaries on classics board fixed connection of second round bar, the other end fixedly connected with first otic placode of second round bar, the lower fixed surface of first otic placode and roof is connected, the outside with the second round bar is established to torsional spring movable sleeve, the one end and the first otic placode fixed connection of second round bar, the other end and the commentaries on classics board fixed connection of torsional spring.

Preferably, the conveying device comprises rotating rollers and conveying belts, the rotating rollers are symmetrically arranged, and the conveying belts are arranged between the two rotating rollers.

Preferably, the middle part of live-rollers fixed interlude is connected with the main shaft, the positive one side of mounting bracket is provided with the motor, one of them the one end of main shaft is connected with the output transmission of motor, the main shaft rotates with the mounting bracket and alternates and is connected.

Preferably, the top and the bottom of slider one side are the first spring of equal fixedly connected with, the one end and the fixed plate fixed connection of first spring, the inside activity of first spring is provided with first gag lever post, the one end of first gag lever post and the inner wall fixed connection of fixing base, the other end and the fixed plate fixed connection of first gag lever post, the opposite side screw thread of fixing base alternates threaded rod, the one end fixedly connected with baffle of threaded rod.

Preferably, the equal fixedly connected with limiting plate of both sides side of roof lower surface, the push rod is connected with the limiting plate slip interlude, the bottom fixedly connected with bottom plate of mounting bracket.

Preferably, the three collecting boxes are arranged above the bottom plate, the bearing plate is arranged below the collecting boxes, second springs are fixedly connected to corners of the lower surface of the bearing plate, the bottom ends of the second springs are fixedly connected with the upper surface of the bottom plate, second limiting rods are arranged inside the second springs and are connected with the bottom plate in a sliding and penetrating mode, second contact switches are arranged under the bearing plate and are fixedly connected with the upper surface of the bottom plate, three bulbs are fixedly installed on the front bottom of the mounting frame in an equidistant mode, and the second contact switches are electrically connected with the three bulbs respectively.

Preferably, fixedly connected with connecting plate between the both sides side inner wall of mounting bracket, the last fixed surface of connecting plate is connected with two third springs, two the top fixedly connected with swash plate of third spring, the middle part activity cover of third spring is equipped with the third gag lever post, the third gag lever post is connected with the connecting plate slip interlude.

Preferably, one side of the upper surface of the top plate is fixedly connected with a feeding groove, and the feeding groove is positioned right above the inclined plate.

The invention also provides a screening method for the pineapple screening device, which comprises the following specific use steps:

the method comprises the following steps: when the pineapples need to be classified in size, the pineapples are firstly thrown into an inner cavity of a feeding groove, then the pineapples fall on an inclined plate, the pineapples roll to the surface of a conveying belt from the inclined plate, a main shaft is driven to rotate through the operation of a motor, then a rotating roller can be driven to rotate, the conveying belt is driven to rotate, and then the pineapples move in the direction far away from the inclined plate;

step two: then, when a large pineapple, namely a pineapple with a larger diameter, moves under the driving of a conveyor belt, the large pineapple firstly collides the bottom of a first rotating plate, then the rotating plate is pushed by the pineapple to rotate by taking the axis of a second round rod as the center of a circle, so that the rotating plate moves towards the direction of a fixed seat, the rotating plate drives the bottom of a supporting rod to move, the sliding block presses a first contact switch under the limit of the inner cavity of the fixed seat, then a hydraulic cylinder is supplied with power, then the hydraulic cylinder drives a pushing rod to move by running, then the first pushing plate pushes the pineapple to move towards the direction of a guide rail, so that the large pineapple falls into the inner cavity of one collecting box, and so on, when the middle pineapple collides with a second rotating plate, the second pushing plate pushes the middle pineapple to the inner cavity of a second collecting box, the rest small pineapples fall into the inner cavity of the last collecting box, so that automatic classifying and collecting of the pineapples are achieved, a large amount of manpower and material resources are reduced, and the pineapples can be classified more flexibly;

step three: finally, when the pineapple in the collecting box inner chamber was full, the weight of collecting box was overweight, and the second spring can compress to make the loading board can oppress second contact switch, then the bulb just can the circular telegram send light, indicates the staff, prevents that the pineapple from overflowing excessively.

The invention has the technical effects and advantages that:

(1) according to the automatic pineapple classifying and collecting device, the arrangement mode that the rotating plate is matched with the hydraulic cylinder is utilized, the rotating plate can rotate by taking the axis of the second round rod as the center of a circle through pushing the bottom of the rotating plate by the pineapples, the rotating plate drives the bottom of the supporting rod to move, and then the hydraulic cylinder drives the pushing rod to move through operation, so that automatic classifying and collecting of the pineapples are achieved, a large amount of manpower and material resources are reduced, and the pineapples are classified more flexibly;

(2) according to the invention, the threaded rod is rotated through the threads by utilizing a setting mode that the sliding block is matched with the threaded rod, so that the baffle can be driven to move, then the baffle can limit the position of the sliding block, the sliding block can drive the top of the supporting rod to slide in parallel, then the bottom of the supporting rod can pull the rotating plate, then the bottom of the rotating plate can be raised to a certain height, and thus the bottom of the first rotating plate is higher than the bottom of the second rotating plate, so that the middle-sized pineapple cannot influence the first rotating plate, and only the bottom of the second rotating plate can be touched, and the classification of the pineapple is realized;

(3) according to the invention, the torsion spring is always in a deformation state by utilizing the arrangement mode that the second round rod is matched with the torsion spring, and the torsion spring is further deformed after the rotating plate rotates clockwise, so that the torsion spring in the deformation state can provide certain torsion for the rotating plate, and the rotating plate always has a tendency of rotating anticlockwise, and the rotating plate can be repeatedly used.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the internal front structure of the present invention.

Fig. 3 is a schematic top view of the conveying device of the present invention.

FIG. 4 is a schematic side view of the present invention.

FIG. 5 is a schematic front view of the rotary plate of the present invention.

FIG. 6 is a front view of the fixing base of the present invention.

FIG. 7 is an enlarged view of the structure at A in FIG. 4 according to the present invention.

FIG. 8 is a schematic view of the internal structure of the collecting box of the present invention.

In the figure: 1. a top plate; 2. a mounting frame; 3. a conveying device; 301. a rotating roller; 302. a conveyor belt; 4. rotating the plate; 5. a fixed seat; 6. a slider; 7. a support bar; 8. a first round bar; 9. a first contact switch; 10. a hydraulic cylinder; 11. a push rod; 12. pushing the plate; 13. a guide rail; 14. a turning device; 141. a second round bar; 142. a torsion spring; 15. a motor; 16. a first spring; 17. a threaded rod; 18. a limiting plate; 19. a base plate; 20. a collection box; 21. a carrier plate; 22. a second spring; 23. a second contact switch; 24. a bulb; 25. a sloping plate; 26. and a third spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

The invention provides a screening device for pineapples and a screening method thereof as shown in figures 1-8, the screening device comprises a top plate 1, a mounting frame 2 is fixedly connected to the lower surface of the top plate 1, the mounting frame 2 is C-shaped, a conveying device 3 is arranged inside the mounting frame 2, the pineapples can be conveniently conveyed through the conveying device 3, so that the pineapples can be moved, the conveying device 3 comprises rotating rollers 301 and conveying belts 302, the two rotating rollers 301 are symmetrically arranged, the conveying belts 302 are arranged between the two rotating rollers 301, the middle parts of the rotating rollers 301 are fixedly and alternately connected with main shafts, one side of the front surface of the mounting frame 2 is provided with a motor 15, one end of one main shaft is in transmission connection with the output end of the motor 15, the main shafts are in rotation and alternate connection with the mounting frame 2, one side of the upper surface of the top plate 1 is, the feed chute is located directly above the inclined plate 25.

Fixedly connected with connecting plate between the both sides side inner wall of mounting bracket 2, two third springs 26 of last fixed surface of connecting plate, the top fixedly connected with swash plate 25 of two third springs 26, swash plate 25 is convenient for guide the pineapple, make the pineapple can fall to on conveyer belt 302, the middle part activity cover of third spring 26 is equipped with the third gag lever post, the third gag lever post alternates with the connecting plate slip to be connected, be convenient for bear the weight of swash plate 25 through the connecting plate, then be convenient for cushion the pineapple that falls down on it through swash plate 25, prevent the damage of pineapple.

Roof 1's below is provided with two commentaries on classics boards 4, the top of commentaries on classics board 4 one side is provided with fixing base 5, fixing base 5 is back the font, the top of fixing base 5 and roof 1's lower fixed surface are connected, the inside slip interlude of fixing base 5 is connected with slider 6, be convenient for extrude first contact switch 9 through slider 6, slider 6's front and back all are provided with bracing piece 7, bracing piece 7 is the slope setting, thereby make and just can promote bracing piece 7 to move when changeing board 4 rotates, then bracing piece 7 just can promote slider 6 and slide in fixing base 5's inner chamber, bracing piece 7's both ends all rotate to alternate and are connected with first round bar 8, one of them first round bar 8 and slider 6 fixed interlude are connected, wherein the equal fixedly connected with second otic placode in both ends of another first round bar 8, second otic placode and commentaries on classics board 4 fixed connection.

The top and the bottom of one side of the sliding block 6 are fixedly connected with a first spring 16, the sliding block 6 can be conveniently provided with elasticity by compressing the first spring 16, so that the sliding block 6 can return to the original position, one end of the first spring 16 is fixedly connected with the fixed plate, a first limiting rod is movably arranged inside the first spring 16, one end of the first limiting rod is fixedly connected with the inner wall of the fixed seat 5, the sliding of the sliding block 6 is conveniently limited by the first limiting rod, so that the sliding of the sliding block 6 is more stable, the other end of the first limiting rod is fixedly connected with the fixed plate, a threaded rod 17 is inserted in the other side of the fixed seat 5 through threads, one end of the threaded rod 17 is fixedly connected with a baffle plate, the threaded rod 17 is rotated through the threads, so that the baffle plate can be driven to move, then the baffle plate can limit the position of the sliding block 6, so that the sliding block 6 can drive the top of the supporting rod 7 to slide in parallel, then the bottom of bracing piece 7 alright to changeing board 4 and pulling, then the bottom of changeing board 4 just can improve certain height to make the bottom of first commentaries on classics board 4 be higher than the height of second commentaries on classics board 4 bottom, thereby also make medium-sized pineapple can not have an influence to first commentaries on classics board 4, only can touch the bottom of second commentaries on classics board 4, thereby realized the classification to the pineapple.

The inner wall fixedly connected with fixed plate of one side, the first contact switch 9 of one side fixedly connected with of fixed plate, pneumatic cylinder 10 is through first contact switch 9 and external power source electric connection, thereby after pressing first contact switch 9, pneumatic cylinder 10 just has the power supply, then pneumatic cylinder 10 just can move, promote push pedal 12 fast and move, make push pedal 12 can carry out the back and forth movement fast, the realization promotes the back to the pineapple, can take out fast again, the front of mounting bracket 2 is provided with two pneumatic cylinders 10, the output transmission of pneumatic cylinder 10 is connected with push rod 11, the one end fixedly connected with push pedal 12 of push rod 11, the fixed interlude in the back of mounting bracket 2 is connected with two guide rails 13, guide rail 13 is convenient for lead the pineapple.

The top of commentaries on classics board 4 is provided with slewer 14, slewer 14 includes second pole 141 and torsional spring 142, the one end and the 4 fixed connection of commentaries on classics board of second pole 141, the first otic placode of the other end fixedly connected with of second pole 141, the lower fixed surface of first otic placode and roof 1 is connected, torsional spring 142 movable sleeve establishes the outside with second pole 141, the one end and the first otic placode fixed connection of second pole 141, the other end and the 4 fixed connection of commentaries on classics board of torsional spring 142, torsional spring 142 is in deformation state always, after 4 clockwise rotations of commentaries on classics board, torsional spring 142 is further deformed, the torsional spring 142 of deformation state this moment just can give the certain torsion of 4 of commentaries on classics board, thereby make commentaries on classics board 4 have anticlockwise rotation's trend always, make commentaries on classics board 4 can used repeatedly.

Limiting plates 18 are fixedly connected to both sides of the lower surface of the top plate 1, pineapples are conveniently limited through the limiting plates 18 and prevented from rolling randomly, the pushing rod 11 is connected with the limiting plates 18 in a sliding and penetrating manner, a bottom plate 19 is fixedly connected to the bottom end of the mounting frame 2, three collecting boxes 20 are arranged above the bottom plate 19, a bearing plate 21 is arranged below the collecting boxes 20, second springs 22 are fixedly connected to corners of the lower surface of the bearing plate 21 and are used for supporting the bearing plate 21 through the second springs 22, the bottom ends of the second springs 22 are fixedly connected with the upper surface of the bottom plate 19, second limiting rods are arranged inside the second springs 22 and are connected with the bottom plate 19 in a sliding and penetrating manner, second contact switches 23 are arranged right below the bearing plate 21 and fixedly connected with the upper surface of the bottom plate 19, three bulbs 24 are fixedly arranged at equal intervals at the front bottom of the mounting frame 2, the three second contact switches 23 are electrically connected to the three light bulbs 24, respectively.

The use method of the invention comprises the following steps:

when the pineapples need to be classified in size, the pineapples are firstly thrown into an inner cavity of the feeding groove, then the pineapples fall on the inclined plate 25, the pineapples roll to the surface of the conveying belt 302 from the inclined plate 25, the main shaft is driven to rotate through the operation of the motor 15, then the rotating roller 301 can be driven to rotate, the conveying belt 302 is driven to rotate, and then the pineapples move in the direction away from the inclined plate 25;

then, when a large pineapple, that is, a pineapple with a larger diameter, moves under the driving of the conveyor belt 302, the large pineapple firstly strikes the bottom of the first rotating plate 4, then the rotating plate 4 rotates around the axis of the second round rod 141 by pushing the bottom of the rotating plate 4 through the pineapple, so that the rotating plate 4 moves towards the fixing base 5, the rotating plate 4 drives the bottom of the supporting rod 7 to move, the sliding block 6 presses the first contact switch 9 by matching with the limit of the inner cavity of the fixing base 5, then the hydraulic cylinder 10 is supplied with power, then the hydraulic cylinder 10 moves to drive the pushing rod 11 to move, then the first pushing plate 12 pushes the pineapple to move towards the pineapple guide rail 13, so that the large pineapple falls into the inner cavity of one of the collecting boxes 20, and so on, when the middle pineapple strikes the second rotating plate 4, the second push plate 12 pushes the medium pineapples into the inner cavity of the second collection box 20, and the remaining small pineapples fall into the inner cavity of the last collection box 20, so that automatic classification and collection of the pineapples are realized, a large amount of manpower and material resources are reduced, and the pineapples are classified more flexibly;

finally, when the pineapple in the collecting box 20 inner chamber is full, the weight of collecting box 20 is overweight, and second spring 22 can compress to make the loading board 21 can oppress second contact switch 23, then bulb 24 just can the circular telegram send light, indicate the staff, prevent that the pineapple from overflowing excessively.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The screening device for the pineapples comprises a top plate (1) and is characterized in that a mounting frame (2) is fixedly connected to the lower surface of the top plate (1), a conveying device (3) is arranged inside the mounting frame (2), two rotating plates (4) are arranged below the top plate (1), a fixing seat (5) is arranged above one side of each rotating plate (4), the top end of each fixing seat (5) is fixedly connected with the lower surface of the top plate (1), a sliding block (6) is slidably and alternately connected inside the fixing seat (5), supporting rods (7) are arranged on the front surface and the back surface of each sliding block (6), first round rods (8) are rotatably and alternately connected to the two ends of each supporting rod (7), a fixing plate is fixedly connected to the inner wall of one side, a first contact switch (9) is fixedly connected to one side of the fixing plate, two hydraulic cylinders (10) are arranged on the front surface of the mounting frame (2), the output end of pneumatic cylinder (10) transmission is connected with push rod (11), the one end fixedly connected with push pedal (12) of push rod (11), the back fixed interlude of mounting bracket (2) is connected with two guide rails (13), the top of commentaries on classics board (4) is provided with slewer (14).

2. The screening device for pineapples according to claim 1, wherein the rotation device (14) comprises a second round rod (141) and a torsion spring (142), one end of the second round rod (141) is fixedly connected with the rotation plate (4), the other end of the second round rod (141) is fixedly connected with a first ear plate, the first ear plate is fixedly connected with the lower surface of the top plate (1), the torsion spring (142) is movably sleeved outside the second round rod (141), one end of the second round rod (141) is fixedly connected with the first ear plate, and the other end of the torsion spring (142) is fixedly connected with the rotation plate (4).

3. The screening device for pineapples according to claim 1, wherein the conveying device (3) comprises a rotating roller (301) and a conveyor belt (302), the two rotating rollers (301) are symmetrically arranged, and the conveyor belt (302) is arranged between the two rotating rollers (301).

4. The screening device for pineapples according to claim 3, wherein a spindle is fixedly inserted and connected to the middle of the rotating roller (301), a motor (15) is arranged on one side of the front surface of the mounting frame (2), one end of one spindle is in transmission connection with an output end of the motor (15), and the spindle is rotatably inserted and connected with the mounting frame (2).

5. The screening device for pineapples according to claim 1, wherein a first spring (16) is fixedly connected to the top and the bottom of one side of the sliding block (6), one end of the first spring (16) is fixedly connected with a fixed plate, a first limiting rod is movably arranged inside the first spring (16), one end of the first limiting rod is fixedly connected with the inner wall of the fixed seat (5), the other end of the first limiting rod is fixedly connected with the fixed plate, a threaded rod (17) is inserted into the other side of the fixed seat (5) in a threaded manner, and a baffle is fixedly connected to one end of the threaded rod (17).

6. The screening device for pineapples according to claim 1, wherein limiting plates (18) are fixedly connected to both sides of the lower surface of the top plate (1), the pushing rod (11) is slidably and alternately connected with the limiting plates (18), and a bottom plate (19) is fixedly connected to the bottom end of the mounting frame (2).

7. A screening device for pineapples according to claim 6, wherein three collecting boxes (20) are arranged above the bottom plate (19), a bearing plate (21) is arranged below the collecting box (20), the corners of the lower surface of the bearing plate (21) are fixedly connected with second springs (22), the bottom end of the second spring (22) is fixedly connected with the upper surface of the bottom plate (19), a second limiting rod is arranged in the second spring (22) and is connected with the bottom plate (19) in a sliding and penetrating way, a second contact switch (23) is arranged right below the bearing plate (21), the second contact switch (23) is fixedly connected with the upper surface of the bottom plate (19), the positive bottom equidistance fixed mounting of mounting bracket (2) has three bulb (24), three second contact switch (23) respectively with three bulb (24) electric connection.

8. The screening device for pineapples according to claim 1, wherein a connecting plate is fixedly connected between two side inner walls of the mounting frame (2), two third springs (26) are fixedly connected to the upper surface of the connecting plate, inclined plates (25) are fixedly connected to the top ends of the two third springs (26), a third limiting rod is movably sleeved in the middle of each third spring (26), and the third limiting rod is connected with the connecting plate in a sliding penetrating manner.

9. The screening device for pineapples according to claim 1, wherein a feeding chute is fixedly connected to one side of the upper surface of the top plate (1), and the feeding chute is positioned right above the inclined plate (25).

10. A screening method for a pineapple screening device is characterized by comprising the following specific use steps:

the method comprises the following steps: when the pineapples need to be classified in size, the pineapples are firstly thrown into an inner cavity of a feeding groove, then the pineapples fall on an inclined plate (25), the pineapples roll to the surface of a conveying belt (302) from the inclined plate (25) and drive a main shaft to rotate through the operation of a motor (15), then a rotating roller (301) can be driven to rotate, the conveying belt (302) is driven to rotate, and then the pineapples move towards the direction far away from the inclined plate (25);

step two: then, when a large pineapple, namely a pineapple with a larger diameter, moves under the driving of the conveyor belt (302), the large pineapple firstly strikes the bottom of the first rotating plate (4), then the rotating plate (4) rotates by taking the axis of the second round rod (141) as the center of a circle by pushing the bottom of the rotating plate (4) through the pineapple, so that the rotating plate (4) moves towards the direction of the fixed seat (5), the bottom of the supporting rod (7) is driven to move through the rotating plate (4), the sliding block (6) presses the first contact switch (9) by matching with the limiting of the inner cavity of the fixed seat (5), then the hydraulic cylinder (10) is supplied with power, then the operation of the hydraulic cylinder (10) drives the pushing rod (11) to move, then the first pushing plate (12) pushes the pineapple to move towards the direction of the guide rail (13), so that the large pineapples fall into the inner cavity of one of the collecting boxes (20), and so on, when the medium pineapples strike the second rotating plate (4), the second pushing plate (12) can push the medium pineapples into the inner cavity of the second collecting box (20), and the rest small pineapples fall into the inner cavity of the last collecting box (20);

step three: finally, when the pineapple in the inner cavity of the collecting box (20) is full, the weight of the collecting box (20) is too heavy, the second spring (22) can be compressed, so that the bearing plate (21) can press the second contact switch (23), and then the bulb (24) can be electrified to emit light to prompt workers.