Automatic fruit and vegetable sorting device

Abstract

The application relates to an automatic fruit and vegetable sorting device, which comprises a rack and a conveying chain, a plurality of interval distributed bidirectional fruit and vegetable sorting trays are installed on the conveying chain, the rack is sequentially provided with a fruit and vegetable feeding assembly, a weighing assembly and a grading and collecting assembly along the conveying direction of the conveying chain, the fruit and vegetable feeding assembly is connected with the conveying chain to convey the fruit and vegetable to the bidirectional fruit and vegetable sorting tray, the weighing assembly is arranged between the fruit and vegetable feeding assembly and the grading and collecting assembly, and the weighing assembly is used for lifting the bidirectional fruit and vegetable sorting tray and weighing; the grading and collecting assembly comprises at least one grading and collecting hopper and a fruit turning mechanism, at least one grading and collecting hopper is arranged on the two sides of the conveying chain, the grading and collecting hoppers are sequentially arranged along the conveying direction of the conveying chain, the fruit turning mechanism is arranged at the position of each grading and collecting hopper, and the fruit turning mechanism controls the bidirectional fruit and vegetable sorting tray to perform a sorting action. The application has the effect of reducing the occupied space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit and vegetable sorting, in particular to a fruit and vegetable automatic sorting device. BACKGROUND

[0002] In recent years, with the continuous development of economy, people's living standards are continuously improved, and people are no longer limited to the pursuit of the quantity of fruits and vegetables, but pay more attention to the quality of fruits and vegetables, so it is necessary to sort fruits and vegetables according to corresponding indicators. The traditional fruit and vegetable sorting method adopts manual sorting, and the sorting efficiency is low.

[0003] At present, the automatic sorting device for classifying round fruits and vegetables based on multiple indicators with the application number 2020227653784 includes a rack, an internal quality detection device, a grading and collecting device, a conveying chain, a driving device, a driven device, a single-side fruit cup group, a weighing device and a support. The above-mentioned automatic sorting device can realize the automatic sorting of fruits and vegetables, but when the number of fruit and vegetable grading is large, multiple grading and collecting devices need to be equipped for the single-side fruit cup group to sort, which will cause the production line of the whole sorting device to be long and occupy a large space, which is not conducive to the installation of the sorting device, so there is room for improvement. SUMMARY

[0004] In order to reduce the occupied space, the present application provides a fruit and vegetable automatic sorting device.

[0005] The fruit and vegetable automatic sorting device provided by the present application adopts the following technical scheme:

[0006] A fruit and vegetable automatic sorting device includes a rack and a conveying chain that circulates and moves on the rack. A plurality of bidirectional fruit and vegetable sorting trays are installed on the conveying chain at intervals. A fruit and vegetable loading assembly, a weighing assembly and a grading and collecting assembly are sequentially arranged along the conveying direction of the conveying chain. The fruit and vegetable loading assembly is connected with the conveying chain to convey fruits and vegetables onto the bidirectional fruit and vegetable sorting trays. The weighing assembly is arranged between the fruit and vegetable loading assembly and the grading and collecting assembly. The weighing assembly is used to lift the bidirectional fruit and vegetable sorting trays and weigh them.

[0007] The grading and collecting assembly includes at least one grading and collecting hopper and a fruit rotating mechanism. At least one grading and collecting hopper is arranged on each side of the conveying chain. The grading and collecting hoppers are sequentially arranged along the conveying direction of the conveying chain. The fruit rotating mechanism is arranged at the position of each grading and collecting hopper. The fruit rotating mechanism controls the bidirectional fruit and vegetable sorting trays to perform sorting actions.

[0008] Optionally, the fruit and vegetable loading device comprises a loading conveyor belt and a feeding mechanism connected to the loading conveyor belt, the feeding mechanism comprises a feeding conveyor belt and two feeding plates, the two feeding plates are arranged at intervals on the rack, and a feeding conveying space is formed between the two feeding plates, the feeding conveyor belt is arranged on the rack below the feeding conveying space, the feeding conveying space has an inlet and an outlet, the inlet is connected to the loading conveyor belt, and the outlet is connected to the conveying chain.

[0009] Optionally, the conveying chain has an inclined section, the inclined section of the conveying chain passes through the outlet of the feeding conveying space, the rack is provided with two feeding baffles at the inclined section of the conveying chain, the two feeding baffles are arranged on the two sides of the conveying chain in a V shape, and the V-shaped small end formed by the two feeding baffles faces the outlet of the feeding conveying space.

[0010] Optionally, the rack is provided with a material returning mechanism on the two sides of the conveying chain, the material returning mechanism comprises two material returning conveying channels and two material returning conveying belts, the two material returning conveying channels are arranged on the rack on the two sides of the conveying chain, and the material returning conveying belts are arranged on the rack in the material returning conveying channels, the material returning conveying channels have an input and an output, the input of the material returning conveying channels is communicated with the position of the conveying chain, and the output of the material returning conveying channels is communicated with the inlet of the feeding conveying space.

[0011] Optionally, the two-way fruit and vegetable sorting tray comprises a base and a fruit tray, the fruit tray is provided with a fruit placing groove, the fruit tray is movably installed on the base, both ends of the base are provided with rotating parts, both ends of the fruit tray are rotationally matched with the rotating parts and can be flipped to both sides of the base, the side edges of the fruit tray are provided with weighing abutting blocks matched with the weighing assembly, and the side edges of the fruit tray are provided with flipping abutting blocks matched with the flipping mechanism.

[0012] Optionally, the rotating part comprises rotating tables arranged at both ends of the base, arc-shaped rotating surfaces are arranged on the two sides of the rotating tables, and rotating support columns are arranged at both ends of the fruit tray and abut against the arc-shaped rotating surfaces on the two sides of the rotating tables; a first arc-shaped groove, a second arc-shaped groove and a third arc-shaped groove are arranged on each arc-shaped rotating surface, the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove are matched with the rotating support columns, and the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove are distributed in an upper-middle-lower direction on the arc-shaped rotating surface.

[0013] Optionally, the rotating table is provided with a rotating limiting block, a rotating limiting slot is formed in the rotating limiting block, the fruit tray is connected with a rotating limiting rod penetrating through the rotating limiting slot, and upper and lower limiting inclined surfaces are arranged at both sides of the rotating limiting slot and used for abutting against the rotating limiting rod.

[0014] Optionally, the fruit tray is provided with two buffer assemblies, and the two buffer assemblies are arranged at two sides of the fruit tray, respectively.

[0015] The buffer assembly comprises a plurality of buffer slots formed in the wall surface of the fruit placing groove, the plurality of buffer slots are arranged in an array from the groove opening to the groove bottom of the fruit placing groove, a buffer air bag is arranged in each buffer slot, a flow channel is arranged in the fruit tray and communicates with each buffer slot, a liquid storage barrel is arranged above the overturning abutting block at two sides of the fruit tray, the liquid storage barrel is filled with a buffer liquid, a through hole is formed in the outer wall surface of the fruit tray and communicates with the flow channel, the liquid storage barrel is connected with the through hole through a conduit, the buffer liquid fills the liquid storage barrel, the flow channel and the buffer air bag, a piston is arranged in the liquid storage barrel, and a squeezing mechanism is arranged on the overturning abutting block and used for cooperating with the fruit mechanism to drive the piston to perform a squeezing action.

[0016] Optionally, the squeezing mechanism comprises a squeezing rod slidingly installed in the vertical direction of the overturning abutting block and a linkage rod slidingly installed in the horizontal direction of the overturning abutting block, one end of the squeezing rod is connected to the piston, the other end of the squeezing rod is connected to one end of the linkage rod through a linkage part, the other end of the linkage rod is used for cooperating with the fruit mechanism, a return spring is sleeved on the squeezing rod, one end of the return spring is connected to the piston, and the other end of the return spring is connected to the overturning abutting block.

[0017] Optionally, the linkage part comprises a first inclined surface arranged at one end of the linkage rod and a second inclined surface arranged at the other end of the squeezing rod and used for cooperating with the first inclined surface.

[0018] In summary, the present application has at least one of the following beneficial technical effects:

[0019] In the present application, the grading hoppers are arranged at both sides of the conveying chain, and a fruit mechanism is arranged at the position of each grading hopper, wherein the bidirectional fruit and vegetable sorting tray can be overturned to the two sides to realize the sorting of fruits and vegetables. Therefore, after the bidirectional fruit and vegetable sorting tray is weighed by the weighing assembly, the fruits and vegetables on the bidirectional fruit and vegetable sorting tray can be sorted into the grading hopper on the corresponding side by the fruit mechanism. Through the arrangement of the bidirectional fruit and vegetable sorting tray, the length of the production line of the automatic fruit and vegetable sorting equipment can be effectively reduced, so that the occupied space is reduced and the convenience of equipment installation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the automatic fruit and vegetable sorting device.

[0021] Figure 2 is a structural schematic diagram of the feeding conveyor belt.

[0022] Figure 3 is a structural schematic diagram of the feeding mechanism.

[0023] Figure 4 is a schematic diagram of the installation of the conveying chain.

[0024] Figure 5 is a schematic diagram of the installation of the hierarchical aggregate assembly.

[0025] Figure 6 is a structural schematic diagram of the bidirectional fruit and vegetable sorting tray.

[0026] Figure 7 is a schematic diagram of the installation of the fruit tray on the base.

[0027] Figure 8 is a schematic diagram of the fruit tray in a non-inverted state.

[0028] Figure 9 is a schematic diagram of the fruit tray in an inverted state.

[0029] Figure 10 is a structural schematic diagram of the rotation limiting block.

[0030] Figure 11 is a first structural schematic diagram of the buffer assembly.

[0031] Figure 12 is a second structural schematic diagram of the buffer assembly.

[0032] Figure 13 is a distribution schematic diagram of the buffer air bag.

[0033] Figure 14 is a schematic diagram of the inflation state of the buffer air bag.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Conveyor chain; 3. Drive sprocket; 4. Two-way fruit and vegetable sorting tray; 41. Base; 42. Fruit tray; 43. Fruit placement slot; 44. Rotating part; 441. Rotating table; 442. Arc-shaped rotating surface; 443. Rotating support column; 444. First arc-shaped groove; 445. Second arc-shaped groove; 446. Third arc-shaped groove; 45. Weighing contact block; 46. Tilting contact block; 461. Tilting contact slope; 47. Rotation limit block; 48. Rotation limit groove; 481. Upper limit slope; 482. Lower limit slope; 49. Rotation limit rod; 491. First rod; 492. Second rod; 493. Rotating rod segment; 50. Anti-detachment protrusion; 501. Anti-detachment space; 502. Anti-detachment rod; 5. Fruit and vegetable feeding assembly; 5 1. Feeding conveyor belt; 52. Feeding hopper; 53. Feeding mechanism; 531. Feeding conveyor belt; 532. Feeding plate; 533. Feeding conveying space; 534. Feeding baffle; 54. Returning mechanism; 541. Returning conveying channel; 542. Returning conveyor belt; 543. Connecting baffle; 544. Returning baffle; 6. Weighing assembly; 7. Grading and collecting assembly; 71. Grading and collecting hopper; 72. Fruit springing mechanism; 721. Fruit springing block; 722. Fruit springing electromagnet; 723. Fruit springing contact slope; 8. Buffer assembly; 81. Buffer groove; 82. Buffer airbag; 803. Flow channel; 83. Liquid storage tank; 84. Conduit; 85. Piston; 86. Extrusion mechanism; 861. Extrusion rod; 862. Linkage rod; 863. Return spring; 864. Linkage part. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-14 This application will be described in further detail.

[0036] An automatic fruit and vegetable sorting device, referring to Figure 1 As shown, the system includes a frame 1 and a conveyor chain 2 mounted on the frame 1. The conveyor chain 2 can circulate on the frame 1. Specifically, drive sprockets 3 are installed on both sides of the frame 1, and the conveyor chain 2 covers the drive sprockets 3. A drive motor connected to the drive sprockets 3 is installed on the frame 1. The drive motor drives the drive sprockets 3 to rotate, thereby realizing the circulatory movement of the conveyor chain 2. Figure 1 The transmission direction shown in the transmission chain 2 is used as an example in this embodiment for explanation.

[0037] Several bidirectional fruit and vegetable sorting trays 4 are installed on the conveyor chain 2 at intervals. The bidirectional fruit and vegetable sorting trays 4 are distributed throughout the entire conveyor chain 2. The frame 1 is arranged with fruit and vegetable feeding components 5, weighing components 6 and grading and collecting components 7 in sequence along the conveying direction of the conveyor chain 2.

[0038] The fruit and vegetable loading assembly 5 is connected with the conveying chain 2 for conveying the fruits and vegetables to the bidirectional fruit and vegetable sorting tray 4. Specifically, the fruit and vegetable loading device comprises a loading conveying belt 51 and a feeding mechanism 53 connected with the loading conveying belt 51. As shown in Figure 2 The loading hopper 52 is provided on the loading conveying belt 51, and the loading hopper 52 has a tapered opening. By pouring the framed fruits and vegetables on the loading conveying belt 51, the fruits and vegetables can be fed into the feeding mechanism 53 after passing through the loading conveying belt 51 and the loading hopper 52.

[0039] As shown in Figure 3 The feeding mechanism 53 comprises a feeding conveying belt 531 and two feeding plates 532. The two feeding plates 532 are located at the middle part of the rack 1 and are spaced apart. The feeding conveying space 533 is formed between the two feeding plates 532. The two feeding plates 532 are respectively inclinedly arranged towards the feeding conveying space 533. The feeding conveying belt 531 is arranged on the rack 1 and located below the feeding conveying space 533. The feeding conveying space 533 has a feeding inlet and a discharging outlet. The feeding inlet is connected with the loading hopper 52 of the loading conveying belt 51. The discharging outlet is connected with the conveying chain 2.

[0040] As shown in Figure 3 and Figure 4 The conveying chain 2 has an inclined section. The inclined section of the conveying chain 2 passes through the discharging outlet of the feeding conveying space 533. The rack 1 is provided with two feeding baffles 534 at the inclined section of the conveying chain 2. The two feeding baffles 534 are located on both sides of the conveying chain 2 to form a V-shaped structure. The small end of the V-shaped structure formed by the two feeding baffles 534 is directed towards the discharging outlet of the feeding conveying space 533.

[0041] Therefore, the fruits and vegetables enter the feeding conveying space 533 from the feeding inlet after passing through the loading hopper 52. Due to the inclined arrangement of the two feeding plates 532, the fruits and vegetables are continuously conveyed by the feeding conveying belt 531 and discharged from the discharging outlet of the feeding conveying space 533. The bidirectional fruit and vegetable sorting tray 4 is conveyed by the conveying chain 2, and the bidirectional fruit and vegetable sorting tray 4 can continuously receive the fruits and vegetables discharged from the discharging outlet. The arrangement of the two feeding baffles 534 enables the fruits and vegetables discharged from the discharging outlet to fall on the bidirectional fruit and vegetable sorting tray 4.

[0042] As shown in Figure 3As shown, the rack 1 is provided with a material returning mechanism 54 on both sides of the conveying chain 2, which is arranged at a position where the fruit and vegetable loading assembly 5 connects with the weighing assembly 6, that is, after passing through the blocking of the feeding baffle 534, only one large fruit can be realized on each bidirectional fruit and vegetable sorting tray 4, when there are two large fruits on one bidirectional fruit and vegetable sorting tray 4, the excess large fruit will fall off the bidirectional fruit and vegetable sorting tray 4 and be returned to the feeding inlet of the feeding conveying space 533 for re-feeding when the bidirectional fruit and vegetable sorting tray 4 passes through the material returning mechanism 54.

[0043] Specifically, the material returning mechanism 54 includes two material returning conveying channels 541 and two material returning conveying belts 542, the two material returning conveying channels 541 are arranged on the rack 1 and located on both sides of the conveying chain 2, and the material returning conveying channels 541 are also located on both sides of the feeding conveying belt 531, the material returning conveying belts 542 are arranged on the rack 1 and located in the material returning conveying channels 541, and the conveying direction of the material returning conveying belts 542 is opposite to the conveying direction of the feeding conveying belt 531. Among them, the material returning conveying channel 541 has an input port and an output port, the input port of the material returning conveying channel 541 communicates with the position where the conveying chain 2 is located, the output port of the material returning conveying channel 541 communicates with the feeding inlet of the feeding conveying space 533, the rack 1 is provided with a connecting baffle 543 at the input port of the material returning conveying channel 541, and a material returning baffle 544 is arranged at the output port of the material returning conveying channel 541. Therefore, when there are two large fruits on one bidirectional fruit and vegetable sorting tray 4, the excess large fruit will fall off the bidirectional fruit and vegetable sorting tray 4, enter the material returning conveying channel 541 through the connecting baffle 543, be conveyed through the material returning conveying belt 542, and re-enter the feeding inlet of the feeding conveying space 533 through the blocking of the material returning baffle 544, thereby realizing that only one fruit exists on each bidirectional fruit and vegetable sorting tray 4 after the fruit and vegetable loading assembly 5 loads the fruits and vegetables, so as to facilitate subsequent sorting of the fruits on the bidirectional fruit and vegetable sorting tray 4.

[0044] The weighing assembly 6 is arranged between the fruit and vegetable loading assembly 5 and the grading and collecting assembly 7, and is used to lift the bidirectional fruit and vegetable sorting tray 4 and weigh it. In one embodiment, the weighing assembly 6 is a weighing sensor arranged on the rack 1, after the fruit and vegetable loading assembly 5, only one fruit exists on each bidirectional fruit and vegetable sorting tray 4, and the bidirectional fruit and vegetable sorting tray 4 passes through the conveying chain 2 one by one to pass through the weighing assembly 6, the weighing assembly 6 lifts and weighs each fruit to facilitate subsequent entry into the grading and collecting assembly 7 for sorting.

[0045] Referring to Figure 5As shown, the grading assembly 7 includes at least one grading hopper 71 and a fruit-rolling mechanism 72, and at least one grading hopper 71 is arranged on each side of the conveying chain 2, and the grading hoppers 71 are arranged in sequence along the conveying direction of the conveying chain 2, and the fruit-rolling mechanism 72 is arranged at the position of each grading hopper 71, and the fruit-rolling mechanism 72 controls the sorting action of the bidirectional fruit and vegetable sorting tray 4. In the embodiment, the number of grading hoppers 71 is set according to the actual sorting situation, and the embodiment is not limited.

[0046] Referring to Figure 6 As shown, the bidirectional fruit and vegetable sorting tray 4 includes a base 41 and a fruit tray 42, and the fruit tray 42 is movably installed on the base 41, and the base 41 is used for fixing on the conveying chain 2. The fruit tray 42 is provided with a fruit placing groove 43, and the groove wall of the fruit placing groove 43 is arranged in a curved surface, and the fruit tray 42 supports the fruits through the fruit placing groove 43.

[0047] The two ends of the base 41 are provided with rotating parts 44, and the two ends of the fruit tray 42 are rotatably connected with the rotating parts 44 and can be flipped to the two sides of the base 41, and the two side edges of the fruit tray 42 are provided with weighing abutting blocks 45 for cooperating with the weighing assembly 6, and the two side edges of the fruit tray 42 are provided with flipping abutting blocks 46 for cooperating with the fruit-rolling mechanism 72.

[0048] Therefore, when the bidirectional fruit and vegetable sorting tray 4 passes through the weighing assembly 6, the weighing abutting blocks 45 on the two sides of the fruit tray 42 will contact the weighing assembly 6, and the weighing assembly 6 can lift the fruit tray 42, so that the fruit tray 42 is separated from the base 41 and suspended in the air, thereby completing the weighing of the fruits on the fruit tray 42. In an embodiment, the weighing abutting blocks 45 are arranged at the bottom of the side edges of the fruit tray 42, and four weighing abutting blocks 45 are arranged, i.e., two weighing abutting blocks 45 are arranged at the bottom of each side edge of the fruit tray 42.

[0049] The flipping abutting blocks 46 are arranged at the bottom of the two side edges of the fruit tray 42, and the flipping abutting blocks 46 are used for cooperating with the fruit-rolling mechanism 72, and the fruit-rolling mechanism 72 includes a fruit-rolling block 721 and a fruit-rolling electromagnet 722, and the fruit-rolling block 721 is provided with a fruit-rolling abutting inclined surface 723, and the flipping abutting blocks 46 are provided with flipping abutting inclined surfaces 461 for cooperating with the fruit-rolling abutting inclined surface 723. After the fruit tray 42 is weighed by the weighing assembly 6, the fruit-rolling electromagnet 722 at the position of the corresponding grading hopper 71 controls the fruit-rolling block 721 to flip, so that the fruit-rolling block 721 changes from a horizontal state to a vertical state. At this time, the fruit tray 42 passes through the fruit-rolling mechanism 72 on the conveying chain 2, the fruit-rolling block 721 abuts against the flipping abutting blocks 46, thereby realizing the flipping of the fruit tray 42 on the base 41, so as to pour and sort the fruits on the fruit tray 42 into the corresponding grading hopper 71.

[0050] Referring toFigure 7 As shown, the rotating part 44 comprises rotating tables 441 arranged at both ends of the base 41, and arc-shaped rotating surfaces 442 arranged at both sides of the rotating tables 441. The fruit tray 42 is provided with rotating support columns 443 which are in contact with the arc-shaped rotating surfaces 442 at both sides of the rotating tables 441. In an embodiment, two rotating support columns 443 are arranged on each end surface of the fruit tray 42, and the two rotating support columns 443 are arranged side by side and spaced apart, and the two rotating support columns 443 are in contact with the arc-shaped rotating surfaces 442 at both sides of the rotating tables 441, respectively. Through the contact and cooperation between the rotating support columns 443 and the arc-shaped rotating surfaces 442 at both sides of the rotating tables 441, the support formed by the fruit tray 42 being flipped to both sides on the base 41 is realized.

[0051] Each arc-shaped rotating surface 442 is provided with a first arc-shaped groove 444, a second arc-shaped groove 445 and a third arc-shaped groove 446, which are matched with the rotating support columns 443, and the first arc-shaped groove 444, the second arc-shaped groove 445 and the third arc-shaped groove 446 are arranged in an upper-middle-lower direction on the arc-shaped rotating surface 442. Through the arrangement of the first arc-shaped groove 444, the second arc-shaped groove 445 and the third arc-shaped groove 446, the fruit tray 42 has a support effect in the unflipped position and the flipped position after being flipped to both sides.

[0052] That is, when the fruit tray 42 is not flipped, the rotating support columns 443 of the fruit tray 42 will be located in the second arc-shaped groove 445, for example, as shown in FIG. 4A. Figure 8 and Figure 9 For reference, when the fruit tray 42 is flipped to the left side, the left rotating support column 443 will be located in the third arc-shaped groove 446, and the right rotating support column 443 will be located in the first arc-shaped groove 444. Similarly, when the fruit tray 42 is flipped to the right side, the right rotating support column 443 will be located in the third arc-shaped groove 446, and the left rotating support column 443 will be located in the first arc-shaped groove 444. Therefore, through the arrangement of the second arc-shaped groove 445, the fruit tray 42 has good stability in the unflipped position. Through the arrangement of the first arc-shaped groove 444 and the third arc-shaped groove 446, the fruit tray 42 can maintain a certain flipping action after being flipped, and the fruits on the fruit tray 42 are ensured to fall off.

[0053] For reference, Figure 7 and Figure 10As shown, one of the rotating tables 441 is provided with a rotating limiting block 47, the rotating limiting block 47 is provided with a rotating limiting slot 48, and the fruit tray 42 is connected with a rotating limiting rod 49 penetrating through the rotating limiting slot 48. Wherein, the two side slots of the rotating limiting slot 48 are provided with an upper limiting inclined surface 481 and a lower limiting inclined surface 482 for abutting against the rotating limiting rod 49, and it is worth noting that the extension line of the upper limiting inclined surface 481 corresponds to the position of the first arc-shaped slot 444, and the extension line of the lower limiting inclined surface 482 corresponds to the position of the third arc-shaped slot 446. Through the setting of the rotating limiting rod 49, the fruit tray 42 can be limited when it is turned to both sides on the base 41, so as to avoid the over-turning of the fruit tray 42.

[0054] Wherein, the rotating limiting rod 49 comprises a first rod 491 and two second rods 492, the first rod 491 is provided in the rotating limiting slot 48, and the two second rods 492 are respectively provided at both ends of the first rod 491 in a bent manner, the first rod 491 and the two second rods 492 form a door-shaped structure, and the two sides of the fruit are provided with rotating installation holes, and the second rod 492 is provided with a rotating rod segment 493 inserted in the rotating installation hole.

[0055] Referring to Figure 7 As shown, the base 41 is provided with a anti-falling boss 50 extending inwardly at both ends, and the anti-falling boss 50 and the bottom surface of the base 41 form an anti-falling space 501, and the fruit tray 42 is provided with an anti-falling rod 502 which can be blocked by the anti-falling boss 50, and the anti-falling rod 502 is located in the anti-falling space 501. In an embodiment, the fruit tray 42 is provided with two anti-falling rods 502, the anti-falling rods 502 are inserted and installed on the fruit tray 42, and the anti-falling rods 502 are arranged along the width direction of the fruit tray 42. Through the setting of the anti-falling rod 502 and the anti-falling boss 50, the fruit tray 42 is movably installed on the base 41, so as to avoid the fruit tray 42 from falling off the base 41.

[0056] When the fruit tray 42 supports the fruits, in order to avoid the fruits from falling on the fruit tray 42 and causing damage when loading, and in order to be able to turn over the fruit tray 42 to pour the fruits, the fruits can be more smoothly detached from the fruit tray 42.

[0057] Referring to Figure 11 and Figure 13 As shown, the fruit tray 42 is provided with two buffer assemblies 8, and the two buffer assemblies 8 are respectively arranged on both sides of the fruit tray 42, that is, one buffer assembly 8 is arranged on each side edge of the fruit tray 42.

[0058] The buffer assembly 8 comprises a plurality of buffer slots 81 formed on the wall of the fruit placing groove 43, and the buffer slots 81 are arranged in an array from the groove opening to the groove bottom of the fruit placing groove 43. Each buffer slot 81 is provided with a buffer air bag 82, and the diameter of the buffer air bag 82 is greater than that of the buffer slot 81.

[0059] The fruit tray 42 is provided with a flow channel 803 communicating with each buffer slot 81, and the two sides of the fruit tray 42 are provided with liquid storage barrels 83 above the overturning abutting blocks 46. The liquid storage barrels 83 are filled with buffer liquid, and in an embodiment, the buffer liquid is pure water.

[0060] The outer wall of the fruit tray 42 is provided with a port communicating with the flow channel 803, and the liquid storage barrel 83 is connected to the port through a conduit 84. The buffer liquid fills the liquid storage barrel 83, the flow channel 803 and the buffer air bag 82. The liquid storage barrel 83 is provided with a piston 85, and the overturning abutting block 46 is provided with a squeezing mechanism 86 cooperating with the fruit mechanism 72 to drive the piston 85 to squeeze. When the squeezing mechanism 86 does not pressurize the liquid storage barrel 83, the buffer liquid fills the buffer air bag 82, and the buffer air bag 82 is not inflated, and the adjacent buffer air bags 82 are also in contact with each other.

[0061] Thus, as shown in Figure 13 and Figure 14 , the buffer air bag 82 is filled with buffer liquid. When the fruit falls on the fruit tray 42, the buffer air bag 82 can buffer the large fruit and reduce the impact damage of the fruit. When the fruit mechanism 72 contacts the overturning abutting block 46, the fruit tray 42 will overturn, and at this time, the squeezing mechanism 86 will squeeze the liquid storage barrel 83. The buffer liquid in the liquid storage barrel 83 is pressurized and enters the buffer air bag 82. At this time, the buffer air bag 82 is inflated, so that after the fruit tray 42 is overturned, the large fruit on the fruit tray 42 can be lifted to a certain angle in advance through the inflated buffer air bag 82 on one side, thereby facilitating the large fruit to roll off the fruit tray 42 and achieving sorting.

[0062] In the embodiment, the two sides of the fruit tray 42 are provided with the buffer assembly 8, and the buffer air bag 82 is also filled with buffer liquid when the squeezing mechanism 86 does not pressurize the liquid storage barrel 83. Therefore, the fruit placing groove 43 in the fruit tray 42 is filled with the buffer air bag 82, thereby achieving good fruit receiving and buffering effect. When the fruit tray 42 is overturned for sorting, the fruit mechanism 72 cooperates with the squeezing mechanism 86 on one side of the fruit tray 42 to inflate the buffer air bag 82 on the corresponding side, thereby lifting the fruit in the fruit tray 42 to an angle, thereby facilitating the fruit to roll off the fruit tray 42.

[0063] Referring to Figure 11 and Figure 12As shown, the pressing mechanism 86 comprises a pressing rod 861 slidably installed along the vertical direction of the turnover abutting block 46, and a linkage rod 862 slidably installed along the horizontal direction of the turnover abutting block 46, the turnover abutting block 46 is provided with a first installation cavity for vertical sliding of the pressing rod 861, and a second installation cavity for horizontal sliding of the linkage rod 862, and the end of the linkage rod 862 extends out of the turnover abutting inclined surface 461 of the turnover abutting block 46.

[0064] One end of the pressing rod 861 is connected to the piston 85, the other end of the pressing rod 861 is matched with one end of the linkage rod 862 through a linkage part 864, the other end of the linkage rod 862 is used for matching with the fruit rolling mechanism 72, and a return spring 863 is sleeved on the pressing rod 861, one end of the return spring 863 is connected to the piston 85, and the other end of the return spring 863 is connected to the turnover abutting block 46. Wherein, the linkage part 864 comprises a first inclined surface arranged at one end of the linkage rod 862, and a second inclined surface arranged at the other end of the pressing rod 861 to match with the first inclined surface.

[0065] Therefore, when the fruit tray 42 is turned over and sorted, the fruit rolling mechanism 72 can contact the linkage rod 862 before the turnover abutting block 46, so that the linkage rod 862 slides horizontally, and the pressing rod 861 is controlled to slide vertically through the linkage part 864 to drive the piston 85 to press the buffer liquid in the buffer liquid barrel 83, so that the buffer liquid is pressed into the buffer air bag 82, so that the buffer air bag 82 can be in an inflated state when the fruit rolling mechanism 72 contacts the turnover abutting block 46, and the fruit is lifted at an angle in the fruit tray 42, so that the fruit is conveniently rolled off from the fruit tray 42.

[0066] The above are preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An apparatus for automatically sorting fruits and vegetables, characterized by, The application relates to a fruit and vegetable sorting device, which comprises a rack (1) and a conveying chain (2) arranged to move circularly on the rack (1), a plurality of two-way fruit and vegetable sorting trays (4) are arranged on the conveying chain (2) at intervals, the rack (1) is sequentially provided with a fruit and vegetable feeding assembly (5), a weighing assembly (6) and a grading and collecting assembly (7) along the conveying direction of the conveying chain (2), the fruit and vegetable feeding assembly (5) is connected with the conveying chain (2) and used for conveying fruits and vegetables onto the two-way fruit and vegetable sorting tray (4), the weighing assembly (6) is arranged between the fruit and vegetable feeding assembly (5) and the grading and collecting assembly (7), and the weighing assembly (6) is used for lifting the two-way fruit and vegetable sorting tray (4) and weighing; the grading and collecting assembly (7) comprises at least one grading and collecting hopper (71) and a fruit turning mechanism (72), at least one grading and collecting hopper (71) is arranged on each side of the conveying chain (2), the grading and collecting hoppers (71) are sequentially arranged along the conveying direction of the conveying chain (2), and the fruit turning mechanism (72) is arranged at the position of each grading and collecting hopper (71), and the fruit turning mechanism (72) controls the two-way fruit and vegetable sorting tray (4) to perform a sorting action; the two-way fruit and vegetable sorting tray (4) comprises a base (41) and a fruit tray (42), the fruit tray (42) is provided with a fruit placing groove (43), the fruit tray (42) is movably arranged on the base (41), rotating parts (44) are arranged at the two ends of the base (41), the two ends of the fruit tray (42) are rotationally matched with the rotating parts (44) and can be flipped to the two sides of the base (41), the two side edges of the fruit tray (42) are each provided with a weighing abutting block (45) used for matching with the weighing assembly (6), and the two side edges of the fruit tray (42) are provided with flipping abutting blocks (46) used for matching with the fruit turning mechanism (72); the fruit tray (42) is provided with two buffer assemblies (8), and the two buffer assemblies (8) are arranged at the two sides of the fruit tray (42) respectively. The buffer assembly (8) comprises a plurality of buffer slots (81) formed on the wall of the fruit placing groove (43), the buffer slots (81) are arranged along the groove from the groove opening to the groove bottom, and a buffer air bag (82) is arranged in each buffer slot (81); a flow channel (803) in communication with each buffer slot (81) is arranged in the fruit tray (42); a liquid storage barrel (83) is arranged above the turnover abutting block (46) on both sides of the fruit tray (42), and the liquid storage barrel (83) is filled with a buffer liquid; a through hole in communication with the flow channel (803) is formed in the outer wall of the fruit tray (42), and the liquid storage barrel (83) is connected to the through hole through a conduit (84); the buffer liquid fills the liquid storage barrel (83), the flow channel (803) and the buffer air bag (82); a piston (85) is arranged in the liquid storage barrel (83); and a pressing mechanism (86) cooperating with the fruit mechanism (72) is arranged on the turnover abutting block (46) to drive the piston (85) to perform a pressing action.

2. The apparatus according to claim 1, wherein The fruit and vegetable loading assembly (5) comprises a loading conveying belt (51) and a feeding mechanism (53) connected to the loading conveying belt (51). The feeding mechanism (53) comprises a feeding conveying belt (531) and two feeding plates (532). The two feeding plates (532) are arranged on the rack (1) in a spaced manner, and a feeding conveying space (533) is formed between the two feeding plates (532). The feeding conveying belt (531) is arranged on the rack (1) below the feeding conveying space (533). The feeding conveying space (533) has an inlet and an outlet. The inlet is connected to the loading conveying belt (51), and the outlet is connected to the conveying chain (2).

3. An apparatus for automatically sorting fruit and vegetables according to claim 2, wherein The conveying chain (2) has an inclined section. The inclined section of the conveying chain (2) passes through the outlet of the feeding conveying space (533). The rack (1) is provided with two feeding baffles (534) at the inclined section of the conveying chain (2). The two feeding baffles (534) are arranged in a V-shaped manner on both sides of the conveying chain (2). The V-shaped small end formed by the two feeding baffles (534) faces the outlet of the feeding conveying space (533).

4. The apparatus according to claim 2, wherein The rack (1) is provided with a return mechanism (54) on both sides of the conveying chain (2). The return mechanism (54) comprises two return conveying channels (541) and two return conveying belts (542). The two return conveying channels (541) are arranged on the rack (1) on both sides of the conveying chain (2). The return conveying belts (542) are arranged on the rack (1) in the return conveying channels (541). The return conveying channels (541) have an input and an output. The input of the return conveying channels (541) is connected to the conveying chain (2), and the output of the return conveying channels (541) is connected to the inlet of the feeding conveying space (533).

5. The apparatus according to claim 1, wherein The rotating part (44) comprises rotating tables (441) arranged at both ends of the base (41), arc-shaped rotating surfaces (442) arranged at both sides of the rotating tables (441), and rotating support columns (443) arranged at both ends of the fruit tray (42) and abutting against the arc-shaped rotating surfaces (442) at both sides of the rotating tables (441). First, second and third arc-shaped grooves (444, 445 and 446) are arranged on each of the arc-shaped rotating surfaces (442) and are matched with the rotating support columns (443), and the first, second and third arc-shaped grooves (444, 445 and 446) are distributed in upper, middle and lower positions on the arc-shaped rotating surfaces (442).

6. An apparatus for automatically sorting fruit and vegetables according to claim 5, wherein One of the rotating tables (441) is provided with a rotating limiting block (47), a rotating limiting groove (48) is arranged on the rotating limiting block (47), a rotating limiting rod (49) is connected to the fruit tray (42) and passes through the rotating limiting groove (48), and upper and lower limiting inclined surfaces (481 and 482) are arranged at both sides of the rotating limiting groove (48) and abut against the rotating limiting rod (49).

7. The apparatus according to claim 1, wherein The extrusion mechanism (86) comprises an extrusion rod (861) slidingly arranged in the vertical direction of the overturning abutting block (46) and a linkage rod (862) slidingly arranged in the horizontal direction of the overturning abutting block (46), one end of the extrusion rod (861) is connected to the piston (85), the other end of the extrusion rod (861) is matched with one end of the linkage rod (862) through a linkage part (864), the other end of the linkage rod (862) is used for matching with the fruit mechanism (72), a reset spring (863) is sleeved on the extrusion rod (861), one end of the reset spring (863) is connected to the piston (85), and the other end of the reset spring (863) is connected to the overturning abutting block (46).

8. An apparatus for automatically sorting fruit and vegetables according to claim 7, wherein The linkage part (864) comprises a first inclined surface arranged at one end of the linkage rod (862) and a second inclined surface arranged at the other end of the extrusion rod (861) and matched with the first inclined surface.

Images