Fruit multi-station turnover device

Abstract

The utility model discloses a fruit multi-station turnover device, belongs to the technical field of agricultural instruments, solves the problem that an existing fruit net sleeving device cannot be arranged in a picking machine for use, and adopts the technical scheme that the fruit multi-station turnover device mainly comprises a carrier which is rotationally arranged on a machine base; at least a feeding station, a detection station, a net sleeving station and a fruit unloading station are arranged on the machine base in the circumferential direction of the machine base, a tray is arranged on the carrying frame, a fruit limiting module for guiding fruits to the tray is arranged on the feeding station, and a detection module for conducting grading detection on the fruits is arranged on the detection station. A net sleeving module for sleeving fruits with a net is arranged on the net sleeving station, a fruit unloading module for unloading the fruits on the tray is arranged on the fruit unloading station, and the driving module is used for driving the carrier to rotate relative to the machine base so that the tray can be sequentially switched on the feeding station, the detection station, the net sleeving station and the fruit unloading station. The fruit net sleeving device is more compact in structure and can be used in the picking machine.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a multi-station fruit turnover device. Background Art

[0002] In the prior art, for example, the invention patent CN107892008A discloses an apple netting device, comprising a frame, an annular belt conveyor is provided on the frame, apple trays are evenly distributed on the conveyor belt of the annular belt conveyor, one end of the annular belt conveyor is respectively provided with an apple inlet and an apple outlet, a netting device is provided on the frame on the inner side of the other end of the annular belt conveyor, and a netting cutting device is provided on the frame away from the apple inlet and between the inner cylinder of the netting support and the apple tray. The above-mentioned apple netting device occupies a large area and is mainly suitable for use in a larger factory building after the fruits are collected together. Since the space inside the picking machine is small, it is difficult to set the above-mentioned apple netting device inside the picking machine for use. Utility Model Content

[0003] The purpose to be achieved by the utility model is to provide a fruit multi-station turnover device, which solves the problem that the existing fruit net device cannot be arranged inside the picking machine for use, so that the structure of the fruit net device is more compact and meets the requirements of use inside the picking machine.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fruit multi-station turnover device, including a base, a carrier and a driving module, the carrier is rotatably arranged on the base, and at least a loading station, a detection station, a net-setting station and a fruit unloading station are arranged on the base along the circumferential direction of the base, and trays corresponding to the loading station, the detection station, the net-setting station and the fruit unloading station are respectively arranged on the carrier, the loading station is provided with a fruit limiting module for guiding the fruit to the tray, the detection station is provided with a detection module for grading the fruit, the net-setting station is provided with a net-setting module for netting the fruit, and the fruit unloading station is provided with a fruit unloading module for unloading the fruit from the tray, and the driving module is used to drive the carrier to rotate relative to the base so that the tray can switch in sequence at the loading station, the detection station, the net-setting station and the fruit unloading station.

[0005] After adopting the above technical scheme, the utility model has the following advantages: the loading station, the detection station, the net-setting station and the fruit unloading station are arranged in sequence along the circumferential direction of the machine base, which can effectively utilize the space of the machine base, reduce the space occupied by the equipment, and is suitable for use inside the picking machine. In addition, the loading rack adopts a turntable rotation to realize multi-station switching. Each station and module can perform different processing steps at the same time. The movement synchronization of each station is high, which realizes assembly line production, reduces idle and waiting time, and is conducive to improving the efficiency of net-setting operations.

[0006] Furthermore, the fruit limiting module includes a limiting support and a lifting drive mechanism arranged at the loading station, and the lifting drive mechanism can drive the limiting support to move up and down relative to the fruit support of the loading station to guide the fruit into the fruit support.

[0007] By adopting the above-mentioned technical solution, the lifting movement of the limit support is driven by the lifting drive mechanism, so the height of the limit support can be accurately controlled. After the fruit is guided by the limit support, the limit support can constrain the fruit to be centered in the fruit support, avoiding shaking and damage of the fruit during transportation at multiple stations.

[0008] Furthermore, the lifting drive mechanism includes a first driving member, a first lifting slide and a first slider arranged on the first lifting slide, the first driving member is used to drive the first slider, the first slider is fixedly connected to the limit support, and the first driving member drives the first slider to push the limit support to lift and lower.

[0009] By adopting the above-mentioned technical solution, the first driving member drives the first slider to push the limiting tray to perform lifting movement. The movement process is stable and smooth, which can ensure that the fruit in the fruit tray is firmly confined in the fruit tray, avoiding shaking and damage of the fruit during transportation at multiple stations.

[0010] Furthermore, first limit switches are respectively provided at both ends of the first lifting slide, and when the first slide block abuts against the first limit switch, the first driving member stops driving the first slide block so that the limit support is stopped at the highest position or the lowest position.

[0011] By adopting the above-mentioned technical solution, by setting the first limit switch, when the first slider is against the limit switch, the first driving member will stop driving the first slider, ensuring that the limit support stops moving when it reaches the highest position or the lowest position, avoiding excessive lifting or lowering, thereby improving the safety of the entire device, and also limiting the range of movement of the first slider to reduce the requirements for the internal space of the picking machine.

[0012] Furthermore, a support plate is fixedly connected to the bottom of the tray, a guide rod is provided on the carrier, and the support plate is slidably mounted on the guide rod to change the height of the tray.

[0013] By adopting the above technical solution, the design of the support plate and the guide rod makes the device more flexible and easy to operate. The height of the support plate can be adjusted according to the needs of different workstations, so that the pallet can be raised and lowered at different workstations, and the pallet can be made more stable.

[0014] Furthermore, the net-setting station is also provided with a movable tray and a lifting and fruit-delivering module for driving the movable tray to move up and down relative to the loading rack. The movable tray can be connected to the support plate for transmission to transport the fruits on the tray to the net-setting port of the net-setting module.

[0015] By adopting the above technical scheme, the fruit on the tray can be accurately transported to the net opening of the net module by moving the tray and driving the moving tray to move up and down relative to the loading rack to drive the support plate to move up and down, ensuring that the fruit enters the net module accurately, improving the accuracy and stability of the net, and the lifting and fruit delivery module can effectively utilize the space to transport the fruit to the net opening of the net module, making the layout of the entire device more compact.

[0016] Furthermore, the lifting and fruit delivery module includes a second driving member, a second lifting slide and a second slider arranged on the second lifting slide, the second driving member is used to drive the second slider, the second slider is fixedly connected to the movable support, and the second driving member drives the second slider to push the movable support to lift and lower.

[0017] By adopting the above technical solution, the second driving member drives the second sliding block to push the movable tray to perform lifting movement, so that the fruit can be transported to the specified position quickly and accurately, saving manual operation time and improving production efficiency.

[0018] Furthermore, the fruit unloading module includes a lever and a third driving member that drives the lever to rotate relative to the fruit tray of the fruit unloading station to push the fruit away from the fruit unloading station.

[0019] By adopting the above technical solution, the lever is driven to rotate by the third driving member, thereby realizing automatic control of the fruit unloading process and reducing manual intervention.

[0020] Furthermore, the loading rack also includes a multi-station profiling module, which includes a lifting plate, a lifting rod and a profiling base. The lifting plate is arranged in the tray, and the side wall of the tray is used to support the fruit. The profiling base is provided with a profiling slope. The lifting rod passes through the tray, and the top end of the lifting rod is fixedly connected to the lifting plate, and the bottom end of the lifting rod can contact the profiling slope. When the tray switches between different stations, the lifting rod contacts different parts of the profiling slope to make the support plate rise and fall relative to the tray.

[0021] By adopting the above technical solution, through the combined design of the tray, lifting plate, lifting rod and contoured base, the tray can drive the lifting rod to contact different parts of the contoured slope when switching between different workstations, so that the fruit can be stably lifted and separated from the side wall of the tray during the transfer process, making it easy to unload the fruit from the tray, avoiding friction and collision between the fruit and the tray, and effectively reducing the risk of fruit damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 This is a structural schematic diagram of a fruit multi-station turnover device of the utility model;

[0024] Figure 2 This is a structural schematic diagram of one perspective of the fruit multi-station turnover device in the utility model;

[0025] Figure 3 It is a structural schematic diagram of the fruit multi-station turnover device of the utility model from another perspective;

[0026] Figure 4 It is a partial cross-sectional view of the fruit multi-station turnover device of the utility model;

[0027] In the figure, 10, machine base; 11, contoured base; 111, contoured inclined plane; 12, support plate; 13, sensor frame; 14, Hall sensor; 15, magnet; 20, loading rack; 21, tray; 22, lifting plate; 23, lifting rod; 24, intermediate shaft; 25, upper support plate; 26, lower support plate; 27, support plate; 28, guide rod; 30, driving motor; 40, loading station; 41, limit support; 42, first driving member; 43, first lifting slide; 50, detection station; 60, net setting station; 61, moving support; 62, second lifting slide; 63, second slide block; 70, fruit unloading station; 71, lever; 72, third driving member. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0029] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0030] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0031] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0032] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0033] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0034] like Figures 1 to 4As shown, the utility model provides a fruit multi-station turnover device, including a base 10, a carrier 20 and a driving module. The carrier 20 is rotatably connected to the base 10. A loading station 40, a detection station 50, a net-setting station 60 and a fruit unloading station 70 are arranged on the base 10 along the circumferential direction of the base 10. Trays 21 corresponding to the loading station 40, the detection station 50, the net-setting station 60 and the fruit unloading station 70 are respectively arranged on the carrier 20, so that the space of the base can be effectively utilized, the space occupied by the equipment can be reduced, and the device is suitable for use inside a picking machine. The driving module is used to drive the carrier 20 to move relative to the base 10 to change the position of the tray 21 on the base 10. The base 10 is provided with a fruit limiting module at the loading station 40 to guide the fruit to the tray 21 at the loading station 40. The base 10 is provided with a detection station 50 to perform graded detection on the fruit on the tray 21 at the detection station 50. The detection module, the machine base 10 is located at the net-wrapping station 60 and is provided with a net-wrapping module for netting the fruits on the tray 21 located at the net-wrapping station 60. The machine base 10 is located at the fruit unloading station 70 and is provided with a fruit unloading module for unloading the fruits on the tray 21 located at the fruit unloading station 70. Each station and module can perform different processing steps at the same time, that is, when the fruits at the fruit unloading station 70 are unloaded, the fruits at the net-wrapping station 60 are netted, the fruits at the detection station 50 are graded, and the fruits at the loading station 40 are limited and centered. After each station completes the corresponding processing steps, the driving module drives the carrier 20 to rotate relative to the machine base 10 to move the fruit tray located at the previous station to the next station, and the subsequent process repeats the above actions. The movement synchronization of each station is high, which realizes assembly line production and reduces idle and waiting time, which is beneficial to improving the net-wrapping operation efficiency, and also reduces the need for manual operation to realize automated operation.

[0035] Preferably, the loading rack 20 adopts a circular disc, which can be arranged in a straight line along the length direction of the fruit multi-station turnover device compared to the loading station 40, the inspection station 50, the net-setting station 60 and the fruit unloading station 70 in the prior art to realize turntable rotation, thereby effectively shortening the length of the fruit multi-station turnover device and making the structure of the fruit multi-station turnover device more compact and suitable for use inside a picking machine.

[0036] It should be noted that the length dimension of the fruit multi-station turnover device may refer to the dimension in the length direction of the fruit multi-station turnover device, or may refer to the dimension in the width direction of the fruit multi-station turnover device.

[0037] First, the loading station 40 is provided with a fruit entrance, and the fruit entrance is located above the tray 21 of the loading station 40. The fruit output from the fruit entrance enters the tray 21. The fruit limiting module located at the loading station 40 includes a limiting support 41 and a lifting drive mechanism arranged at the loading station 40. The lifting drive mechanism can drive the limiting support 41 to move up and down relative to the fruit tray of the loading station 40 to limit the fruit in the fruit tray and avoid shaking and damage of the fruit during transportation among multiple stations.

[0038] It should be noted that the fruit multi-station turnover device can be directly installed on the picking machine, and the fruit inlet in the above description refers to the fruit outlet of the picking machine, and the net is put on during the picking process. Of course, the fruit multi-station turnover device can also be set in a factory, and the fruit inlet in the above description can be the outlet of the fruit production line, which has a wider range of applications.

[0039] Preferably, the limiting support 41 adopts a U-shaped structure. After the limiting support 41 is driven by the lifting drive mechanism to move to the target position at the height of the tray 21, the fruits entering the tray 21 are constrained to be centered by the limiting support 41.

[0040] Specifically, the lifting drive mechanism includes a first driving member 42, a first lifting slide 43 and a first slider arranged on the first lifting slide 43. The first slider is transmission-connected to the first driving member 42. The first slider is fixedly connected to the limit support 41. The first driving member 42 drives the first slider to push the limit support 41 to move up and down. The movement process is stable and smooth, so that the limit support 41 can be accurately located at the target position, thereby ensuring that the fruit in the tray 21 is firmly confined in the tray 21, avoiding shaking and damage of the fruit during transportation at multiple stations.

[0041] Preferably, the first driving member 42 includes a driving motor 30, a conveyor belt, an input wheel, an output wheel, a worm gear and a worm. The output shaft of the driving motor 30 is connected to the output wheel, the worm gear is connected to the input wheel, the worm gear is connected to the first slider and is arranged on the worm gear. The rotation of the driving motor 30 drives the worm gear to rotate through the conveyor belt, so that the worm gear moves to change the height of the first slider.

[0042] In order to prevent the limit support 41 from being too high or too low, first limit switches are respectively provided at both ends of the first lifting slide 43. When the first slider hits the first limit switch at the top of the first lifting slide 43, the first driving member 42 stops driving the first slider to stop the limit support 41 at the highest position. When the first slider hits the first limit switch at the bottom of the first lifting slide 43, the first driving member 42 stops driving the first slider to stop the limit support 41 at the lowest position, thus avoiding excessive lifting or lowering, thereby improving the safety of the entire device. The range of motion of the first slider can also be limited to reduce the requirements for the internal space of the picking machine.

[0043] It should be noted that when the limit support 41 is at the lowest position, the limit support 41 is at the target position so that the fruit is placed as centrally as possible on the tray 21. When the limit support 41 is at the highest position, the limit support 41 is separated from the loading platform, so that when the driving module drives the loading platform to move relative to the base 10, the limit support 41 will not interfere with the loading platform.

[0044] Secondly, the detection station 50 is provided with a detection module for detecting the size of the fruit. The detection module is preferably a fruit camera. The fruit camera takes pictures and transmits the pictures to the background to distinguish the fruit size.

[0045] Of course, the detection module can also use a weighing device. For the same kind of fruit, the size of the fruit is proportional to its weight. After measuring with the weighing device, the size of the fruit can be calculated by finding the size and weight ratio of the corresponding fruit. Correspondingly, the detection module can also use spring expansion for measurement.

[0046] Then, to ensure that the fruit accurately enters the mesh opening of the mesh module, a support plate 27 is fixedly connected to the bottom of the tray 21, and a guide rod 28 is provided on the carrier 20. The support plate 27 is slidably installed on the guide rod 28 to change the height of the tray 21.

[0047] In order to automatically change the height of the tray 21, the net-setting station 60 is also provided with a movable support 61 and a lifting and fruit-delivering module for driving the movable support 61 to move up and down relative to the loading rack 20. The lifting and fruit-delivering module drives the movable support 61 upward, and the movable support 61 can be abutted against the support plate 27 to drive the support plate 27 to move upward, thereby transporting the fruit on the tray 21 to the net-setting port of the net-setting module, thereby improving the accuracy and stability of the net-setting. In addition, the lifting and fruit-delivering module can effectively utilize the space and transport the fruit to the net-setting port, thereby making the layout of the entire device more compact and saving space.

[0048] Specifically, the lifting and fruit delivery module includes a second driving member, a second lifting slide 62 and a second slider 63 arranged on the second lifting slide 62. The second slider 63 is transmission-connected to the second driving member, and the second slider 63 is fixedly connected to the movable support 61. The second driving member drives the second slider 63 to push the movable support 61 to move up and down, so as to quickly and accurately transport the fruit to the designated position, save manual operation time and improve production efficiency.

[0049] In order to accurately control the movement of the movable support 61, the second lifting slide 62 is provided with a limit sensor. According to the fruit size obtained at the detection station 50, the limit sensor controls the movement and adjustment of the movable support 61. When the movable support 61 moves to the target height, the limit sensor works to control the second driving member to stop working, so that the fruit can be accurately moved to the target position.

[0050] Finally, the fruit unloading module includes a lever 71 and a third driving member 72 that drives the lever 71 to rotate relative to the fruit tray of the fruit unloading station 70 to push the fruit away from the fruit unloading station 70, thereby realizing automatic control of the fruit unloading process and reducing manual intervention.

[0051] Preferably, the lever 71 is in an arc shape so that it can better fit the fruit for operation. The third driving member 72 is a pan-tilt motor, and the output shaft of the pan-tilt motor is connected to the lever 71 to drive the lever 71 to rotate to move the fruit.

[0052] The lifting plate 22 is preferably arranged on the upper side of the tray 21 so that the lifting plate 22 is lifted and the lower side of the tray 21 is lifted.

[0053] The multi-station profiling module also includes an intermediate shaft 24, an upper support plate 25, a lower support plate 26 and a support plate 12. The upper support plate 25 and the lower support plate 26 are supported by a column. The guide rod 28 is fixedly connected between the upper support plate 25 and the lower support plate 26. The lower support plate 26 is provided with an avoidance gap corresponding to the lifting rod 23. The lower end of the lifting rod 23 can pass downward through the avoidance gap. The support plate 12 is located below the lower support plate 26. The profiling base 11 is fixed to the support plate 12 by bolts. The output shaft of the drive motor 30 is connected to the intermediate shaft 24 through a coupling. Then, a bearing is provided in the support plate 12, and the bottom of the intermediate shaft 24 is located in the bearing of the support plate 12. The intermediate shaft 24 and the lower support plate 26 are connected by bolts, so that the intermediate shaft 24 is driven to rotate by the motor 30 to drive the entire object carrier 20 to rotate. In addition, a magnet 15 is installed in the groove of the lower support plate 26, and a sensor frame 13 and a Hall sensor 14 are provided on the support plate 12. The Hall sensor 14 is fixed to the support plate 12 by bolts. The Hall sensor 14 is combined with the magnet 15 to achieve accurate control of the rotation of the object carrier 20.

[0054] Among them, the contoured base 11 , the support plate 12 , and the sensor frame 13 constitute a part of the structure of the base 10 , while the lifting plate 22 , the lifting rod 23 , the upper support plate 25 , and the lower support plate 26 constitute a part of the structure of the carrier 20 .

[0055] During use, when the fruit is about to enter the loading station 40 of the multi-station turnover device from the previous working position, the fruit limiting module responds, and the first slider in the fruit limiting module descends until the first limit switch responds, and the first driving member 42 stops moving, waiting for the fruit to enter the tray 21 from the previous working position. When the fruit enters the tray 21, the limit support 41 constrains the fruit in the tray 21 to be centered, and then the first slider rises until the first limit switch responds, and the first driving member 42 stops moving.

[0056] At the same time, the detection module of the detection station 50 detects the fruits and distinguishes the sizes of the fruits.

[0057] At the same time, the second driving member drives the movable support 61 to rise until the limit sensor responds, and the second driving member stops, so that the fruit is at the netting mouth, and the netting module of the netting station 60 starts to net the fruit on the tray 21. After the netting is completed, the second driving member drives the movable support 61 to descend until the limit sensor responds again, and the second driving member stops.

[0058] At the same time, the third driving member 72 of the fruit unloading station 70 drives the lever 71 to rotate, so that the fruit is removed from the tray 21, and then the third driving member 72 drives the lever 71 to return to its original position.

[0059] Afterwards, the driving motor 30 rotates, driving the entire loading rack 20 to rotate. When the Hall sensor 14 responds, the loading rack 20 stops rotating, allowing new fruits to enter the loading station 40, and the fruits originally located at the loading station 40 are moved to the inspection station 50, the fruits originally located at the inspection station 50 are moved to the net-setting station 60, and the fruits originally located at the net-setting station 60 are moved to the fruit unloading station 70.

[0060] It should be noted that when the fruit moves from the netting station 60 to the fruit unloading station 70, the bottom of the lifting rod 23 contacts different parts of the contoured slope 111. When the tray moves to the fruit unloading station 70, the lifting rod 23 is located at the top of the contoured slope 111. After the fruit is lifted by the lifting plate 22, the bottom of the fruit is slightly higher than the surrounding parts of the upper surface of the tray 21, and the lifting of the netted fruit is completed. The subsequent process repeats the above actions.

[0061] It should be noted that the fruit may be apples, pears, citrus fruits, etc.

[0062] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A fruit multi-station turnover device, characterized in that: The utility model comprises a machine base, a carrier and a driving module, wherein the carrier is rotatably arranged on the machine base, and at least a loading station, a detection station, a net-setting station and a fruit unloading station are arranged on the machine base along the circumferential direction of the machine base, and trays corresponding to the loading station, the detection station, the net-setting station and the fruit unloading station are respectively arranged on the carrier, and a fruit limiting module for guiding the fruits onto the tray is arranged on the loading station, a detection module for grading the fruits is arranged on the detection station, a net-setting station is provided with a net-setting module for setting the fruits on the net, and a fruit unloading module for unloading the fruits from the tray is arranged on the fruit unloading station, and the driving module is used for driving the carrier to rotate relative to the machine base so that the tray can be switched in sequence at the loading station, the detection station, the net-setting station and the fruit unloading station.

2. The fruit multi-station turnover device according to claim 1, characterized in that: The fruit limiting module includes a limiting support and a lifting drive mechanism arranged at the loading station. The lifting drive mechanism can drive the limiting support to move up and down relative to the fruit tray of the loading station to guide the fruit into the fruit tray.

3. The fruit multi-station turnover device according to claim 2, characterized in that: The lifting drive mechanism includes a first driving member, a first lifting slide and a first slider arranged on the first lifting slide, the first driving member is used to drive the first slider, the first slider is fixedly connected to the limit support, and the first driving member drives the first slider to push the limit support to move up and down.

4. The fruit multi-station turnover device according to claim 3, characterized in that: The first lifting slide is provided with first limit switches at both ends, and when the first slide block abuts against the first limit switch, the first driving member stops driving the first slide block to make the limit stop at the highest position or the lowest position.

5. The fruit multi-station turnover device according to claim 1, characterized in that: The bottom of the tray is fixedly connected with a support plate, and the carrier is provided with a guide rod, and the support plate is slidably mounted on the guide rod to change the height of the tray.

6. The fruit multi-station turnover device according to claim 5, characterized in that: The net-wrapping station is also provided with a movable tray and a lifting and fruit-delivering module for driving the movable tray to move up and down relative to the loading rack. The movable tray can be connected to the support plate for transmission to transport the fruits on the tray to the net-wrapping port of the net-wrapping module.

7. The fruit multi-station turnover device according to claim 6, characterized in that: The lifting and fruit delivery module includes a second driving member, a second lifting slide and a second slider arranged on the second lifting slide, the second driving member is used to drive the second slider, the second slider is fixedly connected to the movable support, and the second driving member drives the second slider to push the movable support to move up and down.

8. The fruit multi-station turnover device according to claim 1, characterized in that: The fruit unloading module comprises a lever and a third driving member which drives the lever to rotate relative to the fruit tray of the fruit unloading station so as to push the fruit away from the fruit unloading station.

9. The fruit multi-station turnover device according to claim 1, characterized in that: It also includes a multi-station profiling module, which includes a lifting plate, a lifting rod and a profiling base. The lifting plate is arranged in a tray, and the side wall of the tray is used to support the fruit. The profiling base is provided with a profiling slope. The lifting rod passes through the tray, and the top end of the lifting rod is fixedly connected to the lifting plate, and the bottom end of the lifting rod can contact the profiling slope. When the tray switches to different stations, the lifting rod contacts different parts of the profiling slope to make the lifting plate rise and fall relative to the tray.

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