Feeding mechanism and fruit and vegetable sorting machine

Abstract

The utility model relates to the field of fruit and vegetable sorting machines, and discloses a feeding mechanism and a fruit and vegetable sorting machine, the feeding mechanism comprises a rack, a fruit feeding device, a conveying device and a backflow device, the conveying device is installed on the rack, the conveying device is provided with a plurality of conveying channels, each conveying channel comprises an input end, and the fruit feeding device is located at the input end; the backflow device comprises a backflow fruit and vegetable conveying assembly and a reciprocating motion driving assembly, the backflow fruit and vegetable conveying assembly is connected with the rack and used for conveying backflow fruits and vegetables to the input end of the conveying channel, and the reciprocating motion driving assembly is connected to the backflow fruit and vegetable conveying assembly. The reciprocating motion driving assembly can drive the backflow fruit and vegetable conveying assembly to reciprocate relative to the rack. When the backflow fruit and vegetable conveying assembly moves, backflow fruits and vegetables on the backflow fruit and vegetable conveying assembly can be evenly input into the input ends of the different conveying channels.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable sorting machines, and in particular to a feeding mechanism and a fruit and vegetable sorting machine. Background Technology

[0002] As people pursue a higher quality of life, more and more people are demanding higher quality fruits and vegetables, making fruit and vegetable sorting an important technology.

[0003] Fruit and vegetable sorting involves separating produce into different grades according to certain standards, such as size or weight. During the sorting process, a large quantity of fruits and vegetables is placed on a conveyor belt connected to a sorting belt. Fruits and vegetables entering the sorting belt undergo inspection for sorting, including image acquisition and weighing. Fruits and vegetables may fall between the conveyor belt and the sorting belt, or even within the sorting belt itself. These fallen fruits and vegetables enter a return flow channel, which then re-transfers them back to the conveyor belt for further sorting.

[0004] Multiple conveying channels are usually set up in parallel, with the return channel located on the side of the conveying channel. When the return channel transfers the returned fruits and vegetables back to the conveying channel, the conveying channel closer to the return channel will receive more fruits and vegetables, while the conveying channel farther away from the return channel will receive fewer fruits and vegetables. This will result in the returned fruits and vegetables not entering the multiple conveying channels evenly, affecting the sorting efficiency. Utility Model Content

[0005] The present invention aims to provide a feeding mechanism and a fruit and vegetable sorting machine to solve the technical problem in the prior art that returned fruits and vegetables cannot be evenly fed into multiple conveying channels.

[0006] To solve the above-mentioned technical problems, this utility model provides a feeding mechanism, including: a frame;

[0007] Fruit loading device;

[0008] A conveying device is mounted on the frame and has multiple conveying channels. Each conveying channel includes an input end, and the fruit loading device is located at the input end.

[0009] A reflux device includes a reflux fruit and vegetable conveying component and a reciprocating motion drive component. The reflux fruit and vegetable conveying component is connected to the frame and is used to convey refluxed fruits and vegetables to the input end of the conveying channel. The reciprocating motion drive component is connected to the reflux fruit and vegetable conveying component and can drive the reflux fruit and vegetable conveying component to reciprocate relative to the frame. The reciprocating motion direction of the reflux fruit and vegetable conveying component forms a preset angle with the conveying direction of the conveying channel.

[0010] Through the above structure, the reciprocating motion drive component drives the return fruit and vegetable conveying component to reciprocate relative to the frame. When the return fruit and vegetable conveying component moves, it can evenly input the return fruits and vegetables on the return fruit and vegetable conveying component into the input end of different conveying channels, so as to avoid the return fruits and vegetables from being concentrated at the input end of one conveying channel, thereby avoiding blockage at the input end of one conveying channel.

[0011] In some embodiments, the reciprocating motion drive assembly includes a first drive assembly, a transmission gear, and a rack. The first drive assembly is mounted on the frame, the transmission gear is connected to the first drive assembly, and the rack is mounted on the reflux fruit and vegetable conveying assembly. The rack is arranged along the reciprocating motion direction of the reflux fruit and vegetable conveying assembly, and the transmission gear meshes with the rack.

[0012] With the above structure, the rack is set along the reciprocating motion direction of the reflux fruit and vegetable conveying component, and the transmission gear meshes with the rack. When the first drive component drives the transmission gear to rotate, the rack and the reflux fruit and vegetable conveying component move linearly along the reciprocating motion direction of the reflux fruit and vegetable conveying component, ensuring that the landing point of the input fruit and vegetables in the reflux fruit and vegetable conveying component is on a straight line.

[0013] In some embodiments, the feeding mechanism further includes a mounting base and a second drive assembly. The mounting base is located at the input end, and the second drive assembly is mounted on the mounting base. The return fruit and vegetable conveying assembly includes a moving frame and a conveyor belt. The conveyor belt is connected to the moving frame and includes a fruit and vegetable sliding portion located on the side of the moving frame facing the conveying channel. The moving frame is slidably connected to the mounting base, and the rack is mounted on the moving frame. The first drive assembly is used to drive the transmission gear to rotate, thereby driving the rack and the moving frame to reciprocate relative to the mounting base, so that the fruit and vegetable sliding portion reciprocates relative to the mounting base above the conveying channel. The second drive assembly is used to drive the conveyor belt to move, so that the conveyor belt inputs the return fruit and vegetables through the fruit and vegetable sliding portion to the input ends of different conveying channels.

[0014] With the above structure, the fruit and vegetable sliding part is located on the side of the moving frame facing the conveying channel. The first drive component drives the transmission gear to rotate, thereby driving the moving frame to reciprocate relative to the mounting base, so that the fruit and vegetable sliding part is located above the conveying channel and reciprocates relative to the mounting base. At the same time, the second drive component drives the conveyor belt to move. The conveyor belt can input the returned fruits and vegetables through the fruit and vegetable sliding part to the input end of different conveying channels, thereby making the returned fruits and vegetables evenly input into different conveying channels.

[0015] In some embodiments, the mounting base has a slide groove, the moving frame is housed in the slide groove, and the moving frame is capable of moving along the slide groove.

[0016] With the above structure, the motion frame moves within the slide, ensuring that the motion frame can move along the preset route, and the movement of the motion frame is not easily affected by accidental collisions.

[0017] In some embodiments, the feeding mechanism further includes a first drive roller mounted on the mounting base; the second drive assembly includes a drive roller; the reflux fruit and vegetable conveying assembly further includes a second drive roller and a third drive roller, the conveyor belt is sequentially wound around the drive roller, the first drive roller, the second drive roller and the third drive roller, the second drive roller and the third drive roller are both mounted on the motion frame, the second drive roller is located between the first drive roller and the drive roller, and the first drive roller, the second drive roller and the third drive roller are all located on the same side of the drive roller.

[0018] With the above structure, during the movement of the frame, the length of the part of the conveyor belt located between the second drive component and the first drive roller will not change, while the lengths of the parts of the conveyor belt located between the first drive roller and the second drive roller, between the second drive roller and the third drive roller, and between the third drive roller and the second drive component will change accordingly, so as to ensure that the conveyor belt does not affect the transmission of fruits and vegetables while keeping the conveyor belt length unchanged.

[0019] In some embodiments, the feeding mechanism further includes adjustment components. Two adjustment components are respectively connected to opposite ends of the drive roller and installed on opposite sides of the mounting base. Each adjustment component includes an adjustment seat, a locking member, an adjustment connector, a support member, an adjustment screw, and an adjustment nut. The mounting base has a strip-shaped adjustment groove, which is arranged along the reciprocating motion direction of the return fruit and vegetable conveying component. The locking member passes through the adjustment groove and is connected to the adjustment seat. The locking member can move into position relative to the mounting base within the adjustment groove to fix the adjustment seat to the mounting base. The adjustment connector connects the locking member and the adjustment screw. The support member is installed on the mounting base. The adjustment screw passes through the support member and can move relative to the support member. Two adjustment nuts are sleeved on the adjustment screw and are respectively located on opposite sides of the support member.

[0020] With the above structure, two adjusting nuts are sleeved on the adjusting screw and located on opposite sides of the support. Rotating one of the adjusting nuts so that it abuts against the support causes the adjusting screw to move the adjusting connector, locking member, and adjusting seat relative to the mounting seat, thereby adjusting the position of the drive roller and thus adjusting the tension of the conveyor belt. After the adjusting seat is adjusted to the correct position, the locking member can fix the adjusting seat to the mounting seat. The position of the drive roller can be precisely adjusted by the cooperation of the adjusting nut and the adjusting screw.

[0021] In some embodiments, the reflux fruit and vegetable conveying assembly further includes a steering roller, the height of which is greater than the height of the third drive roller, the steering roller being located between the third drive roller and the drive roller, and the fruit and vegetable sliding portion being located between the steering roller and the third drive roller, and inclined downward along the direction from the steering roller to the third drive roller.

[0022] With the above structure, the fruit and vegetable sliding section is located between the steering roller and the third transmission roller, and is inclined downward along the direction from the steering roller to the third transmission roller. When the returning fruit and vegetables move to the fruit and vegetable sliding section, they can slide into different conveying channels.

[0023] In some embodiments, the feeding mechanism further includes a suspension assembly, two suspension assemblies are respectively connected to opposite sides of the motion frame, each suspension assembly includes a suspension bracket and a roller; the mounting base has a guide groove, two guide grooves are respectively located on the other opposite sides of the motion frame, the opening of each guide groove is away from the motion frame, each roller is received in a corresponding guide groove, and the opposite ends of each suspension bracket are respectively connected to a corresponding roller and one end of the motion frame.

[0024] With the above structure, the two suspension components are respectively connected to the opposite ends of the motion frame. The motion frame is suspended from the mounting base by the suspension bracket and rollers. When the motion frame moves, it can drive the rollers to move in the guide groove to ensure that the motion frame reciprocates stably relative to the mounting base.

[0025] In some embodiments, the preset included angle is 90 degrees.

[0026] With the above structure, the reciprocating motion of the reflux fruit and vegetable conveying component has the shortest stroke.

[0027] This utility model also provides a fruit and vegetable sorting machine, including the feeding mechanism described in any of the above embodiments.

[0028] Compared with the prior art, in this embodiment of the utility model, the reciprocating motion drive component can drive the return fruit and vegetable conveying component to reciprocate relative to the frame. The reciprocating motion direction of the return fruit and vegetable conveying component is at a preset angle to the conveying direction of the conveying channel, so that the return fruit and vegetable conveying component can evenly input the return fruit and vegetables on the return fruit and vegetable conveying component into the input end of different conveying channels, so as to avoid the return fruit and vegetables from being concentrated at the input end of one conveying channel, thereby avoiding blockage at the input end of one conveying channel. Attached Figure Description

[0029] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0030] Figure 1 This is a schematic diagram of the feeding mechanism provided in one embodiment of the present invention, wherein the conveyor belt of the feeding mechanism is omitted;

[0031] Figure 2 yes Figure 1 A schematic diagram of the landing point of the refluxed fruits and vegetables in the reflux fruit and vegetable conveying component;

[0032] Figure 3 yes Figure 1 Side view of the loading and unloading mechanism;

[0033] Figure 4 yes Figure 1 Cross-sectional view of the mounting base and reflux device;

[0034] Figure 5 yes Figure 1 A structural schematic diagram of the mounting base and reflux device at the first angle;

[0035] Figure 6 yes Figure 5 A structural schematic diagram of the mounting base and reflux device at the second angle;

[0036] Figure 7 yes Figure 6 Enlarged schematic diagram of part A in the diagram;

[0037] Figure 8 yes Figure 1 A structural schematic diagram of the mounting base and reflux device at the third angle;

[0038] Figure 9 yes Figure 8 Enlarged schematic diagram of section B in the diagram.

[0039] The attached figures are labeled as follows:

[0040] 100. Feeding mechanism; 10. Frame; 20. Fruit feeding device; 30. Conveying device; 31. Conveying channel; 311. Input end; 32. Conveying unit; 40. Return device; 41. Return fruit and vegetable conveying assembly; 411. Moving frame; 4111. Support part; 4112. Outlet part; 41121. Guide surface; 412. Conveyor belt; 413. Steering roller; 42. Reciprocating motion drive assembly; 421. First drive assembly; 422. Transmission gear; 423. Rack; 43. Second drive roller; 44. Third drive roller; 50. Mounting base; 51. Slide groove; 52. Adjustment groove; 53. Guide groove; 60. Second drive assembly; 61. Second drive motor; 62. Drive roller; 70. Adjustment assembly; 71. Adjustment seat; 72. Adjustment connector; 73. Adjustment screw; 74. Locking component; 76. Adjustment connector; 78. Adjustment screw; 79. Adjustment nut; 80. First drive roller; 90. Suspension assembly; 92. Roller; 94. Suspension bracket. Detailed Implementation

[0041] To facilitate understanding of this utility model, the following section provides a more detailed description of it in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements can exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0043] Please see Figure 1 , Figure 1 This is a schematic diagram of the feeding mechanism provided in one embodiment of the present invention.

[0044] An embodiment of this utility model provides a feeding mechanism 100, including a frame 10, a fruit feeding device 20, a conveying device 30, and a return device 40. The conveying device 30 is mounted on the frame 10 and has multiple conveying channels 31. Each conveying channel 31 includes an input end 311, and the fruit feeding device 20 is located at the input end 311. The return device 40 includes a return fruit and vegetable conveying component 41 and a reciprocating motion drive component 42. The return fruit and vegetable conveying component 41 is connected to the frame 10 and is used to convey return fruits and vegetables to the input end 311 of the conveying channel 31. The reciprocating motion drive component 42 is connected to the return fruit and vegetable conveying component 41 and can drive the return fruit and vegetable conveying component 41 to reciprocate relative to the frame 10. The reciprocating motion direction of the return fruit and vegetable conveying component 41 forms a preset angle with the conveying direction of the conveying channel 31.

[0045] It should be noted that the fruit loading device 20 is used to transport fruits and vegetables and feed them into the input end 311. In this embodiment, the fruit loading device 20 includes a first conveyor belt, on which the fruits and vegetables are placed and carried to the input end 311. The return device 40 includes a second conveyor belt. The input end of the second conveyor belt is connected to the junction of the conveying channel 31 and the sorting channel and is located below the sorting channel. The input end of the second conveyor belt is used to receive fruits and vegetables falling from the junction of the conveying channel 31 and the sorting channel and the sorting channel. The output end of the second conveyor belt is connected to the return fruit and vegetable conveying component 41. The second conveyor belt is used to return missed fruits and vegetables for a second sorting. In this embodiment, the first and second conveyor belts are not shown in the figure.

[0046] Specifically, the reciprocating motion drive component 42 drives the return fruit and vegetable conveying component 41 to reciprocate relative to the frame 10. When the return fruit and vegetable conveying component 41 moves, it can evenly input the return fruits and vegetables on the return fruit and vegetable conveying component 41 into the input ends 311 of different conveying channels 31, so as to avoid the return fruits and vegetables being concentrated in the input end 311 of one conveying channel 31. The return fruits and vegetables falling from the return fruit and vegetable conveying component 41 can fall onto the first conveyor belt of the fruit loading device 20, and then be conveyed into the input ends 311 of different conveying channels 31 by the first conveyor belt of the fruit loading device 20; they can also fall into the input ends 311 of the conveying channels 31; or a portion of the return fruits and vegetables can fall onto the first conveyor belt of the fruit loading device 20, and another portion can fall into the input ends 311 of the conveying channels 31.

[0047] See Figure 1 and Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the landing point of the returned fruits and vegetables in the medium-speed return fruit and vegetable conveying component.

[0048] Furthermore, it should be noted that the conveying direction of the conveying channel 31 and the reciprocating motion direction of the reflux fruit and vegetable conveying component 41 have a preset angle. In this embodiment, the conveying direction of the conveying channel 31 is perpendicular to the motion direction of the reflux fruit and vegetable conveying component 41, that is, the preset angle is 90 degrees. During the reciprocating motion of the reflux fruit and vegetable conveying component 41, the refluxed fruits and vegetables continuously fall into and then enter different conveying channels 31, so that the refluxed fruits and vegetables can fall evenly into different conveying channels 31. The preset angle of 90 degrees can minimize the stroke of the reflux fruit and vegetable conveying component 41 in its reciprocating motion.

[0049] See Figure 3 and Figure 4 , Figure 3 yes Figure 1 Side view of the loading and unloading mechanism; Figure 4 yes Figure 1 A schematic diagram of the mounting base and reflux device.

[0050] In one embodiment, the reciprocating motion drive assembly 42 includes a first drive assembly 421, a transmission gear 422, and a rack 423. The first drive assembly 421 is mounted on the frame 10, the transmission gear 422 is connected to the first drive assembly 421, and the rack 423 is mounted on the reflux fruit and vegetable conveying assembly 41. The rack 423 is arranged along the reciprocating motion direction of the reflux fruit and vegetable conveying assembly 41, and the transmission gear 422 is meshed with the rack 423.

[0051] Specifically, the rack 423 is arranged along the reciprocating motion direction of the reflux fruit and vegetable conveying assembly 41, and the transmission gear 422 meshes with the rack 423. When the first drive assembly 421 drives the transmission gear 422 to rotate, the rack 423 and the reflux fruit and vegetable conveying assembly 41 move linearly along the reciprocating motion direction of the reflux fruit and vegetable conveying assembly 41, ensuring that the landing point of the input fruit and vegetables in the reflux fruit and vegetable conveying assembly 41 is on a straight line. In addition, the meshing connection between the transmission gear 422 and the rack 423 enables the reflux fruit and vegetable conveying assembly 41 to move smoothly in a linear motion along the reciprocating motion direction of the reflux fruit and vegetable conveying assembly 41.

[0052] In this embodiment, the first drive component 421 can be a servo motor or a cylinder or other drive element. No limitation is imposed here.

[0053] In one embodiment, the feeding mechanism 100 further includes a mounting base 50 and a second drive assembly 60. The mounting base 50 is located at the input end 311, and the second drive assembly 60 is mounted on the mounting base 50. The return fruit and vegetable conveying assembly 41 includes a moving frame 411 and a conveyor belt 412. The conveyor belt 412 is connected to the moving frame 411 and includes a fruit and vegetable sliding portion 4120 located on the side of the moving frame 411 facing the conveying channel 31. The moving frame 411 is slidably connected to the mounting base. 50. The rack 423 is mounted on the motion frame 411. The first drive assembly 421 is used to drive the transmission gear 422 to rotate, so as to drive the rack 423 and the motion frame 411 to reciprocate relative to the mounting base 50, so that the fruit and vegetable sliding part 4120 is located above the conveying channel 31 and reciprocates relative to the mounting base 50. The second drive assembly 60 is used to drive the conveyor belt 412 to move, so that the conveyor belt 412 inputs the returned fruit and vegetables through the fruit and vegetable sliding part 4120 to the input end 311 of different conveying channels 31.

[0054] Specifically, the fruit and vegetable sliding section 4120 is located on the side of the moving frame 411 facing the conveying channel 31. The first drive assembly 421 drives the transmission gear 422 to rotate, thereby driving the moving frame 411 to reciprocate relative to the mounting base 50. This allows the fruit and vegetable sliding section 4120 to reciprocate relative to the mounting base 50 above the conveying channel 31. Simultaneously, the second drive assembly 60 drives the conveyor belt 412 to move. The conveyor belt 412 can input the returned fruits and vegetables through the fruit and vegetable sliding section 4120 to the input ends 311 of different conveying channels 31, thus ensuring that the returned fruits and vegetables are evenly input into different conveying channels 31. The moving frame 411 can be a frame structure, the conveyor belt 412 can be a conveyor belt, the second drive assembly 60 drives the conveyor belt 412 to move, and the fruit and vegetable sliding section 4120 is the part of the moving frame 411 facing the conveying channel 31 when the conveyor belt 412 moves.

[0055] In one embodiment, the mounting base 50 has a slide groove 51, and the motion frame 411 is housed in the slide groove 51, and the motion frame 411 can move along the slide groove 51.

[0056] Specifically, the motion frame 411 moves within the slide 51, ensuring that the motion frame 411 can move along the preset route, ensuring the landing position of the fruits and vegetables falling from the return fruit and vegetable conveying component 41, and that the movement of the motion frame is not easily affected by accidental collisions.

[0057] In this embodiment, the length direction of the chute 51 is perpendicular to the length direction of the conveying channel 31.

[0058] In one embodiment, the feeding mechanism 100 further includes a first transmission roller 80, which is mounted on the mounting base 50; the second drive assembly 60 includes a drive roller 62; the return fruit and vegetable conveying assembly 41 further includes a second transmission roller 43 and a third transmission roller 44, and the conveyor belt 412 is sequentially wound around the drive roller 62, the first transmission roller 80, the second transmission roller 43 and the third transmission roller 44. The second transmission roller 43 and the third transmission roller 44 are both mounted on the motion frame 411. The second transmission roller 43 is located between the first transmission roller 80 and the drive roller 62, and the first transmission roller 80, the second transmission roller 43 and the third transmission roller 44 are all located on the same side of the drive roller 62.

[0059] In this embodiment, the second drive assembly 60 is fixedly mounted on the mounting base 50, the first drive roller 80 is fixed on the mounting base 50, and the second drive roller 43 is mounted on the motion frame 411. It can be understood that during the movement of the motion frame 411, the positions of the first drive roller 80 and the drive roller 62 do not change, while the second drive roller 43 moves with the movement of the motion frame 411. The drive roller 62, the first drive roller 80, the second drive roller 43, and the conveyor belt 412 form a fixed pulley system. The third drive roller 44 is mounted on the motion frame 411. It can be understood that during the movement of the motion frame 411, the position of the first drive roller 80 remains unchanged, while the second drive roller 43 and the third drive roller 44 move with the movement of the motion frame 411. The first drive roller 80, the second drive roller 43, and the third drive roller 44 form a movable pulley system. The purpose of this arrangement is that, during the movement of the motion frame 411, the length of the portion of the conveyor belt 412 located between the second drive assembly 60 and the first drive roller 80 remains unchanged, while the lengths of the portions of the conveyor belt 412 located between the first drive roller 80 and the second drive roller 43, between the second drive roller 43 and the third drive roller 44, and between the third drive roller 44 and the drive roller 62 will change accordingly. This ensures that the conveyor belt 412 does not affect the transport of fruits and vegetables while maintaining its constant length. Simultaneously, the third drive roller 44 moves with the motion frame 411, and the fruit and vegetable sliding portion 4120 moves with the third drive roller 44, causing the returning fruits and vegetables to fall into different positions from the fruit and vegetable sliding portion 4120, thus allowing the returning fruits and vegetables to enter different conveying channels 31 evenly.

[0060] See Figure 5 , Figure 6 and Figure 7 , Figure 6 yes Figure 5 A structural schematic diagram of the mounting base and reflux device at the second angle; Figure 7 yes Figure 6 Enlarged schematic diagram of part A in the diagram.

[0061] In one embodiment, the feeding mechanism 100 further includes adjustment components 70. Two adjustment components 70 are respectively connected to the opposite ends of the drive roller 62 and installed on opposite sides of the mounting base 50. Each adjustment component 70 includes an adjustment base 72, a locking member 74, an adjustment connector 76, a support member 77, an adjustment screw 78, and an adjustment nut 79. The mounting base 50 has a strip-shaped adjustment groove 52. The adjustment groove 52 is arranged along the reciprocating motion direction of the return fruit and vegetable conveying component 41. The locking member 74 passes through the adjustment groove 52 and is connected to the adjustment base 52. After the locking member 74 moves into position relative to the mounting base 50 in the adjustment groove 52, it fixes the adjustment base 52 to the mounting base 50. The adjustment connector 76 connects the locking member 74 and the adjustment screw 78. The support member 77 is installed on the mounting base 50. The adjustment screw 78 passes through the support member 77 and can move relative to the support member 77. Two adjustment nuts 79 are sleeved on the adjustment screw 78 and are respectively located on opposite sides of the support member 77.

[0062] With the above structure, two adjusting nuts 79 are sleeved on the adjusting screw 78 and are located on opposite sides of the support 77. Rotating one of the adjusting nuts 79 so that it abuts against the support 77 allows the adjusting screw 78 to drive the adjusting connector 76, the locking member 74, and the adjusting seat 72 to move relative to the mounting base 50, thereby adjusting the position of the drive roller 62 and thus adjusting the tension of the conveyor belt 412. After the adjusting seat 72 is adjusted to the correct position, the locking member 74 can fix the adjusting seat 72 to the mounting base 50. The position of the drive roller 62 can be precisely adjusted by the cooperation of the adjusting nut 79 and the adjusting screw 78.

[0063] It should be noted that adjusting one of the adjusting nuts 79 will cause the drive roller 62 to move in one direction, and adjusting the other adjusting nut 79 will cause the drive roller 62 to move in the other direction.

[0064] Specifically, the second drive assembly 60 includes a second drive motor 61 and a drive roller 62. The output end of the second drive motor 61 is connected to the drive roller 62, and the conveyor belt 412 is wound around the drive roller 62. The drive roller 62 drives the conveyor belt 412. Each end of the drive roller 62 is mounted on an adjusting seat 72. The mounting seat 50 has an adjusting groove 52, and a locking member 74 passes through the adjusting groove 52 and is threadedly connected to the adjusting seat 72. The locking member 74 can be a screw, and there are two of them, each connected to opposite sides of the adjusting seat 72. The adjusting connector 76 and the support member 77 can both be L-shaped sheet metal. The locking member 74 passes through the connector 76, fixing the connector 76 to the mounting seat 50. The support member 77 can be fixedly mounted to the mounting seat 50 with screws.

[0065] See also Figure 4 and Figure 5In one embodiment, the return fruit and vegetable conveying assembly 41 further includes a steering roller 413, the height of which is greater than the height of the third drive roller 44. The steering roller 413 is located between the third drive roller 44 and the drive roller 62. The fruit and vegetable sliding part 4120 is located between the steering roller 413 and the third drive roller 44 and is inclined downward along the direction from the steering roller 413 to the third drive roller 44.

[0066] With the above structure, the fruit and vegetable sliding part 4120 is located between the steering roller 413 and the third transmission roller 44, and is inclined downward along the direction from the steering roller 413 to the third transmission roller 44. When the returning fruit and vegetables move to the fruit and vegetable sliding part 4120, they can slide into different conveying channels 31.

[0067] See Figure 8 and Figure 9 , Figure 8 yes Figure 1 A structural diagram of the mounting base and reflux device at the third angle. Figure 9 yes Figure 8 Enlarged schematic diagram of section B in the diagram.

[0068] In one embodiment, the feeding mechanism 100 further includes a suspension assembly 90. Two suspension assemblies 90 are respectively connected to opposite sides of the motion frame 411. Each suspension assembly 90 includes a roller 92 and a suspension bracket 94. The mounting base 50 has a guide groove 53. Two guide grooves 53 are respectively located on the other opposite sides of the motion frame 411. The opening of each guide groove 53 is away from the motion frame 411. Each roller 92 is received in a corresponding guide groove 53. The opposite ends of each suspension bracket 94 are respectively connected to a corresponding roller 92 and one end of the motion frame 411.

[0069] Specifically, two suspension components 90 are respectively connected to the opposite ends of the moving frame 411. The moving frame 411 is suspended from the mounting base 50 by suspension brackets 94 and rollers 92. When the moving frame 411 moves, it can drive the rollers 92 to move within the guide groove 53 to ensure that the moving frame 411 reciprocates stably relative to the mounting base 50. The guide groove 53 is set along the reciprocating direction of the return fruit and vegetable conveying component 41, and the rollers 92 abut against the bottom wall of the guide groove 53. The moving frame 411 is located below the conveyor belt 412.

[0070] See also Figure 1 In one embodiment, the conveying device 30 includes a conveying unit 32, which is provided in multiple sets and is arranged in a stepped manner along the conveying direction of the conveying channel.

[0071] Specifically, each conveying unit 32 includes a conveying channel 31. The fruits and vegetables to be sorted can quickly pass through the interconnected conveying channels 31 from top to bottom. As the fruits and vegetables fall from one conveying unit 32 at one height to another, the stacked fruits and vegetables will scatter, which is to prevent the fruits and vegetables from stacking and facilitate subsequent sorting. The conveying channel 31 can be a V-shaped conveying channel.

[0072] This utility model also provides a fruit and vegetable sorting machine, including the feeding mechanism 100 in any of the above embodiments.

[0073] The fruit and vegetable sorting machine also includes a feeding mechanism, a rejection mechanism, and a fruit and vegetable sorting mechanism, wherein the feeding mechanism, the feeding device 100, the conveying mechanism, and the fruit and vegetable sorting mechanism are connected in sequence. The feeding mechanism includes a hopper and a feeding belt. The hopper includes a discharge port. Fruits and vegetables are placed into the hopper and enter the feeding belt from the discharge port. The feeding belt is used to transport the fruits and vegetables to the first conveyor belt of the fruit feeding device 20. The conveying device 30 transports the fruits and vegetables to the conveying mechanism.

[0074] The conveying mechanism is used to transport fruits and vegetables after they have passed through the feeding mechanism 100. Specifically, the conveying mechanism includes fruit cups, a conveying chain, a fruit cup rotating device, and a detection device. The fruits and vegetables are transported onto the fruit cups, and the fruit cups move together with the conveying chain under its drive. The fruit cup rotating device can rotate the fruit cup wheel on the fruit cup to make the fruits and vegetables rotate and prevent the fruits and vegetables on the fruit cup from piling up. Then the fruit cups are transported to one side of the detection device, which can use visual inspection to take pictures of the surface of the fruits and vegetables and provide feedback to the fruit and vegetable sorting mechanism.

[0075] The fruit and vegetable sorting mechanism includes an air blowing device and an output channel. After receiving the fruit and vegetable information from the fruit cup, the fruit and vegetable sorting mechanism sorts the fruits and vegetables into different grades. The air blowing device blows air onto the fruits and vegetables in the fruit cup, sending different fruits and vegetables into different output channels to complete the sorting of fruits and vegetables.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A feeding mechanism, characterized in that, include: frame; Fruit loading device; A conveying device is mounted on the frame and has multiple conveying channels. Each conveying channel includes an input end, and the fruit loading device is located at the input end. A reflux device includes a reflux fruit and vegetable conveying component and a reciprocating motion drive component. The reflux fruit and vegetable conveying component is connected to the frame and is used to convey refluxed fruits and vegetables to the input end of the conveying channel. The reciprocating motion drive component is connected to the reflux fruit and vegetable conveying component and can drive the reflux fruit and vegetable conveying component to reciprocate relative to the frame. The reciprocating motion direction of the reflux fruit and vegetable conveying component forms a preset angle with the conveying direction of the conveying channel.

2. The feeding mechanism according to claim 1, characterized in that, The reciprocating motion drive assembly includes a first drive assembly, a transmission gear, and a rack. The first drive assembly is mounted on the frame, the transmission gear is connected to the first drive assembly, and the rack is mounted on the reflux fruit and vegetable conveying assembly. The rack is arranged along the reciprocating motion direction of the reflux fruit and vegetable conveying assembly, and the transmission gear meshes with the rack.

3. The feeding mechanism according to claim 2, characterized in that, It also includes a mounting base and a second drive assembly. The mounting base is located at the input end, and the second drive assembly is mounted on the mounting base. The reflux fruit and vegetable conveying assembly includes a moving frame and a conveyor belt. The conveyor belt is connected to the moving frame and includes a fruit and vegetable sliding portion located on the side of the moving frame facing the conveying channel. The moving frame is slidably connected to the mounting base, and the rack is mounted on the moving frame. The first drive assembly is used to drive the transmission gear to rotate, thereby driving the rack and the moving frame to reciprocate relative to the mounting base, so that the fruit and vegetable sliding portion reciprocates relative to the mounting base above the conveying channel. The second drive assembly is used to drive the conveyor belt to move, so that the conveyor belt inputs the reflux fruit and vegetables through the fruit and vegetable sliding portion to the input ends of different conveying channels.

4. The feeding mechanism according to claim 3, characterized in that, The mounting base has a sliding groove, the moving frame is housed in the sliding groove, and the moving frame can move along the sliding groove.

5. The feeding mechanism according to claim 3, characterized in that, It also includes a first drive roller, which is mounted on the mounting base; the second drive assembly includes a drive roller; the reflux fruit and vegetable conveying assembly further includes a second drive roller and a third drive roller, the conveyor belt is sequentially wound around the drive roller, the first drive roller, the second drive roller and the third drive roller, the second drive roller and the third drive roller are both mounted on the motion frame, the second drive roller is located between the first drive roller and the drive roller, and the first drive roller, the second drive roller and the third drive roller are all located on the same side of the drive roller.

6. The feeding mechanism according to claim 5, characterized in that, It also includes adjustment components, two of which are respectively connected to the opposite ends of the drive roller and installed on opposite sides of the mounting base. Each adjustment component includes an adjustment base, a locking member, an adjustment connector, a support member, an adjustment screw, and an adjustment nut. The mounting base has a strip-shaped adjustment groove, which is arranged along the reciprocating motion direction of the return fruit and vegetable conveying component. The locking member passes through the adjustment groove and is connected to the adjustment base. The locking member can move into position relative to the mounting base within the adjustment groove to fix the adjustment base to the mounting base. The adjustment connector connects the locking member and the adjustment screw. The support member is installed on the mounting base. The adjustment screw passes through the support member and can move relative to the support member. The two adjustment nuts are sleeved on the adjustment screw and are respectively located on opposite sides of the support member.

7. The feeding mechanism according to claim 5, characterized in that, The reflux fruit and vegetable conveying assembly also includes a steering roller, the height of which is greater than the height of the third drive roller. The steering roller is located between the third drive roller and the output end of the second drive assembly. The fruit and vegetable sliding part is located between the steering roller and the third drive roller and is inclined downward along the direction from the steering roller to the third drive roller.

8. The feeding mechanism according to claim 3, characterized in that, It also includes suspension components, two of which are respectively connected to opposite sides of the motion frame. Each suspension component includes a suspension bracket and a roller. The mounting base has guide grooves, two of which are respectively located on the other opposite sides of the motion frame. The opening of each guide groove is away from the motion frame. Each roller is received in a corresponding guide groove. The opposite ends of each suspension bracket are respectively connected to a corresponding roller and one end of the motion frame.

9. The feeding mechanism according to claim 1, characterized in that, The preset included angle is 90 degrees.

10. A fruit and vegetable sorting machine, characterized in that, Includes the feeding mechanism as described in any one of claims 1 to 9.

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