A separation device for fruit picking

Abstract

This invention belongs to the technical field of agricultural harvesting equipment, and particularly relates to a separation device for fruit harvesting. The invention provides a separation device for fruit harvesting, the structure of which includes: 1. Two inclined plates are spaced apart, with the gap smaller than the maximum diameter of the fruit. The fruit rolls along the inclined plates into the fruit frame under gravity, while the leaves fall through the gap between the two inclined plates. This makes fruit and leaf separation simpler and more efficient, and provides timely operational feedback and facilitates maintenance even without obstructed view. 2. A lever unit meshing with a bidirectional conveyor belt unit drives the lever unit at the lower end of the inclined plate to rotate when the packing box moves forward or backward. The periodic lifting of the lever unit causes the inclined plate to swing up and down, thereby shaking off leaves and impurities from the inclined plate, resulting in better cleaning.

Description

Technical Field

[0001] This invention belongs to the field of agricultural harvesting equipment technology, and particularly relates to a separation device for fruit harvesting. Background Technology

[0002] To reduce labor costs during harvesting, agricultural products typically require separating the fruit from the leaves before packaging, such as apples and bell peppers. Existing harvesting machinery often leaves loose branches and fallen leaves attached to the harvested fruit, requiring additional cleaning. Current methods for separating fruit and leaves mostly rely on manual labor, or involve designing the conveyor belts with perforations to allow leaves to fall off automatically during transport.

[0003] For example, Chinese utility model patent CN213792169U, published on July 27, 2021, discloses a plum leaf separation device. The structure includes a base, a separation mechanism, a rotating column, bearing seats, a motor, small rotating wheels, a collecting mechanism, gears, plates, a cylindrical seat, a fixing rod, a flat belt, and a large rotating wheel. Bearing seats are provided on the front and rear parts of both the left and right sides of the base. A groove is opened at the top of the bearing seat, and a small rotating wheel is rotatably connected to the groove at the top of the bearing seat. A rotating belt is rotatably connected between the two small rotating wheels. The column has large rotating wheels on both sides, and a separation mechanism is rotatably connected between them. A cylindrical seat is located on the front left side of the base, and a motor is located at the top of the cylindrical seat. A fixed rod is connected to the left side of the motor, and the bottom end of the fixed rod is connected to the front left side of the base. A flat belt is wound around the middle of the motor's output shaft and the left side of the rotating column. A plate is located on the middle left side of the base, and a collection mechanism is located on the top left side of the plate. Gears are connected to the front end of the collection mechanism and the right side of the motor's output shaft. The two gears mesh. A collection frame is located on the top left side of the plate, and the collection frame is located below the collection mechanism.

[0004] The basic structural principle of the plum fruit and leaf separation device in this invention patent is as follows: The motor is started, and a cylindrical base and a fixing rod fix the motor. The motor's output shaft drives the left gear to rotate. Due to the meshing of the two gears, the rotation of the left gear drives the rotation of the right gear. The right gear drives the collection mechanism and the flat belt to rotate. The flat belt drives the rotating column to rotate, which in turn drives the small and large rotating wheels to rotate. The large rotating wheel drives the separation mechanism to rotate. At this time, the fruit farmer pours the plum fruit and leaf mixture into the right side of the separation mechanism. The plum fruit and leaves are broken up and separated within the separation mechanism. Due to gravity, the broken plum fruit and leaves roll down from the left side of the separation mechanism into the collection mechanism, where they are manually removed. Through the collection mechanism, the plums move to the left and finally fall into the collection frame on the right side of the top of the plate. The fruit farmer removes the plums from the collection frame, achieving the effect of quickly separating the plum fruit and leaves. After the plum fruit and leaf separation is completed...

[0005] However, in actual use, the plum fruit and leaf separation device still has at least the following two shortcomings, which are the technical problems that this invention aims to solve.

[0006] 1. In this separation device, the structure that completely separates the fruit and leaves is a water tank and a leaf separating plate. This separation method will cause the leaves to get wet and has an upper limit on the amount of leaves that can accumulate. The leaves need to be removed periodically, so its practicality is poor.

[0007] 2. The separation mechanism is cylindrical, and the leaves that accidentally accumulate inside need to be removed, which is also very troublesome.

[0008] Therefore, in summary, there is now a fruit-leaf separation device that offers a simpler and more efficient way to separate leaves that have already fallen from the fruit from the fruit. Summary of the Invention

[0009] This invention provides a separation device for fruit harvesting, the structure of which is such that: 1. Two inclined plates are spaced apart, with the gap being smaller than the minimum diameter of the fruit. The fruit rolls into the fruit frame along the inclined plates under gravity, while the leaves fall through the gap between the two inclined plates. This makes the separation of fruit and leaves simpler and more efficient. In the absence of obstructed view, the operation feedback is timely, facilitating maintenance. At the same time, the separation of fruit and leaves is more convenient and faster; 2. A lever unit that meshes with a bidirectional conveyor belt unit drives the lever unit at the lower end of the inclined plate to rotate when the packing box moves forward or backward. The periodic lifting of the lever unit causes the inclined plate to swing up and down, thereby shaking off the leaves and impurities on the inclined plate, resulting in a better cleaning effect.

[0010] The technical solution adopted by the present invention to solve the above problems is: a separation device for fruit picking, the structure including a base plate, two inclined plates disposed on the base plate for rolling fruits on the upper surface and dropping leaves in the gaps, a bidirectional conveyor belt unit disposed on the base plate for loading and unloading fruit frames, and a lever unit disposed on the base plate and connected to the bidirectional conveyor belt unit for lifting the inclined plates when loading and unloading the fruit frames to drop the leaves remaining on the inclined plates.

[0011] A further preferred technical solution is that the bidirectional conveyor belt unit includes an inverted L-shaped support block disposed on the base plate, a cantilevered mounting plate disposed on the inverted L-shaped support block, a drive gear and a driven gear respectively inserted into both ends of the cantilevered mounting plate, a conveyor chain meshing with the drive gear and the driven gear, and a forward and reverse motor disposed on the base plate for rotating the drive gear.

[0012] A further preferred technical solution is that the actuating lever unit includes a support column disposed on the base plate, a rotating shaft disposed on the support column, a rotating gear disposed on the rotating shaft, an additional gear disposed on the driven gear output shaft, a transmission chain meshing the rotating gear and the additional gear, and an extension rod disposed on the rotating shaft and used to rotate and actuate the inner side of the inclined plate.

[0013] A further preferred technical solution includes: a high support column and a low support column disposed on the base plate and used to tilt the inclined plate toward the fruit frame.

[0014] A further preferred technical solution includes a hinge seat unit disposed on the high support column and the low support column, and used to connect the inclined plate.

[0015] A further preferred technical solution is that the side of the inclined plate near the high support column and the low support column is higher than the side near the support column.

[0016] A further preferred technical solution is that the hinge seat unit includes a perforated hinge plate disposed on the inclined plate, a perforated insertion slot plate disposed on the supporting high leg column and / or supporting low leg column, and a pin disposed on the perforated insertion slot plate for inserting the perforated hinge plate.

[0017] A further preferred technical solution is that the actuating lever unit further includes an inclined actuating plate disposed on the extension rod and used to rotate and fit against the bottom end of the inclined plate.

[0018] A further preferred technical solution is that the bidirectional conveyor belt unit further includes a transport plate that is spaced apart on the conveyor chain and used to support the fruit frame.

[0019] A further preferred technical solution includes a front end baffle disposed on the base plate near the supporting high post, for preventing the fruit from rolling out. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the positional structure of the present invention.

[0021] Figure 2 This is a structural diagram showing the position of the hinge seat unit in this invention.

[0022] Figure 3 This is a schematic diagram of the position of the inclined plate from a top-down perspective, according to the present invention.

[0023] Figure 4 This is a perspective view of the position of the bidirectional conveyor belt unit in this invention.

[0024] Figure 5 This is a front view showing the connection between the bidirectional conveyor belt unit and the lever unit in this invention.

[0025] Figure 6 This is a side view showing the connection between the bidirectional conveyor belt unit and the lever unit in this invention.

[0026] Figure 7 This is a schematic diagram of the support column supporting the inclined plate from a side view angle according to the present invention.

[0027] Figure 8 This is a schematic diagram of the extension rod supporting the inclined plate from a side view angle according to the present invention.

[0028] Figure 9 This is a schematic diagram of the support column supporting the inclined plate from the forward view angle of the present invention.

[0029] Figure 10 This is a schematic diagram of the extension rod supporting the inclined plate from the forward view angle of the present invention.

[0030] The meanings of the markings in the diagram are as follows:

[0031] a) Fruit, b) Leaf, c) Fruit frame, d) Harvesting roller, e) Walking wheel;

[0032] Base plate 11;

[0033] Inclined plate 1, bidirectional conveyor belt unit 2, actuating rod unit 3, high support column 4, low support column 5, hinged seat unit 6, front end baffle 7;

[0034] Inverted L-shaped support block 201, cantilever mounting plate 202, drive gear 203, driven gear 204, conveyor chain 205, forward and reverse motor 206, transport plate 207, support column 301, rotating shaft 302, rotating gear 303, auxiliary gear 304, transmission chain 305, extension rod 306, tilting actuation plate 307, perforated hinge plate 601, perforated insertion slot plate 602, pin shaft 603. Detailed Implementation

[0035] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0036] As attached Figure 1-10 As shown, a separation device for fruit picking includes a base plate 11, two inclined plates 1 disposed on the base plate 11 for rolling fruits a on the upper surface and leaves b falling through the gaps, a bidirectional conveyor belt unit 2 disposed on the base plate 11 for loading and unloading fruit frames c, and a lever unit 3 disposed on the base plate 11 and connected to the bidirectional conveyor belt unit 2 for lifting the inclined plates 1 when loading and unloading the fruit frames c to drop the leaves b remaining on the inclined plates 1.

[0037] In this embodiment, the separation device for fruit picking can be used for separation and packaging during the picking process, and also for separation and packaging during fruit storage. Taking the separation and packaging process during harvesting as an example, the separation device for fruit harvesting is set on the harvesting machine via the base plate 11. The inclined plate 1 is located between the two harvesting rollers d. After the fruit a is harvested by the harvesting rollers d, it is transported to the upper end of the inclined plate 1 by the transport device. The two inclined plates 1 are inclined towards the fruit frame c, with the end closer to the fruit frame c being lower than the end farther away from the fruit frame c, so that the fruit a can roll into the fruit frame c. The two inclined plates 1 are spaced apart, and the fruit a and the leaf b are poured in from both sides of the two inclined plates 1. The gap between the two inclined plates 1 should be smaller than the minimum diameter of the fruit a, so as to prevent the fruit a from falling out of the gap. The fruit a is guided by the inclined plate 1 and rolls into the fruit frame c, while the leaf b slides out of the gap between the two inclined plates 1 due to gravity, achieving the separation and classification of fruit and leaf. The fruit a enters the fruit frame c for packaging and collection, while the fallen leaf b is discharged from the gap between the two inclined plates 1.

[0038] Furthermore, the bidirectional conveyor belt unit 2 functions to drive the fruit frame c away from the inclined plate 1 when the fruit frame c is full of fruit a, and to drive the fruit frame c closer to the inclined plate 1 when the fruit frame c is empty, reducing the difficulty of manual handling. To facilitate loading and unloading of the fruit frame c during the harvesting process, the bidirectional conveyor belt unit 2 can be located at the rear wheel position of the walking wheel e of the harvester, while the inclined plate 1 is located in the middle of the harvester or at the front wheel position of the walking wheel e. Moreover, due to the different sizes of the fruit, the distance between the bidirectional conveyor belt unit 2, the fruit frame c, and the inclined plate 1 also needs to be adjusted accordingly.

[0039] Furthermore, the actuating lever unit 3 is positioned directly below the inclined plate 1. When the bidirectional conveyor belt unit 2 moves the fruit frame c back and forth, the actuating lever unit 3 connected to the bidirectional conveyor belt unit 2 will also experience a change in force. This causes the actuating lever unit 3, which is not normally interfering with the inclined plate 1, to rotate and lift the inclined plate 1. Based on the rotation cycle, the inclined plate 1 is lifted back and forth, thereby shaking off the leaves b or impurities attached to the inclined plate 1, making cleaning efficient and convenient. To facilitate the actuating lever unit 3 lifting the inclined plate 1, the inclined plate 1 can be made of an elastic material, or it can be configured with a movable hinge or a retractable spring. This allows the inclined plate 1 to vibrate to a certain extent after the actuating lever unit 3 lifts it, while simultaneously allowing the fruit a to enter the fruit frame c from its stationary state.

[0040] Finally, as attached Figure 7 and attached Figure 9 As shown, this is the initial state of the separation device for fruit harvesting. When fruit and leaf separation is required, the bidirectional conveyor belt unit 2 is activated, causing the fruit frame c to move closer to the inclined plate 1. At this time, the actuating lever unit 3 also rotates to lift and lower the inclined plate 1, as shown in the attached diagram. Figure 8 and attached Figure 10 As shown, this is a schematic diagram of the actuating lever unit 3 shaking the leaf b off the inclined plate 1. The inclined plate 1 is in a vibrating state, which can provide preliminary feedback on whether the separation device for fruit picking is working properly. After the fruit frame c reaches the position where the fruit a can roll off smoothly, the bidirectional conveyor belt unit 2 is turned off. At this time, the actuating lever unit 3 stops rotating and returns to its initial state. The inclined plate 1 is in a stationary state. Then, the fruit a and the leaf b are poured in from the upper sides of the inclined plate 1. The fruit a rolls into the fruit frame c, and the leaf b falls out from the gap between the two inclined plates 1. After the fruit frame c is full, the pouring of fruit a stops, and the bidirectional conveyor belt unit 2 is turned on, so that the fruit frame c moves away from the inclined plate 1. At this time, the actuating lever unit 3 moves synchronously and lifts the inclined plate 1, shaking off the leaf b. While cleaning, it prevents the leaf from clogging the gap. The operation can be repeated to collect more fruit a.

[0041] The bidirectional conveyor belt unit 2 includes an inverted L-shaped support block 201 disposed on the base plate 11, a cantilevered mounting plate 202 disposed on the inverted L-shaped support block 201, a drive gear 203 and a driven gear 204 respectively inserted into the two ends of the cantilevered mounting plate 202, a conveyor chain 205 meshing with the drive gear 203 and the driven gear 204, and a forward and reverse motor 206 disposed on the base plate 11 for rotating the drive gear 203.

[0042] In this embodiment, the inverted L-shaped support block 201 supports and supports the cantilever mounting plate 202. The rotatable rods of the driving gear 203 and the driven gear 204 are inserted into both ends of the cantilever mounting plate 202. Two gears protrude from both ends of the rods and are located on the two sides of the cantilever mounting plate 202. The conveyor chain 205 meshes with the protruding driving gear 203 and driven gear 204. The cantilever mounting plate 202 is wrapped by the conveyor chain 205, and the bottom end of the cantilever mounting plate 202 is a certain distance from the base plate 11, which does not affect the rotation of the conveyor chain 205. The driven gear 204 is located at one end near the actuating lever unit 3. The forward / reverse motor 206 is an existing motor capable of driving the driving gear 203 to rotate clockwise or counterclockwise, thereby driving the fruit frame c on the conveyor chain 205 forward or backward.

[0043] The actuating lever unit 3 includes a support column 301 mounted on the base plate 11, a rotating shaft 302 mounted on the support column 301, a rotating gear 303 mounted on the rotating shaft 302, an auxiliary gear 304 mounted on the output shaft of the driven gear 204, a transmission chain 305 meshing with the rotating gear 303 and the auxiliary gear 304, and an extension rod 306 mounted on the rotating shaft 302 for rotating and actuating the inner side of the inclined plate 1.

[0044] In this embodiment, the support column 301 is positioned directly below the inclined plate 1 and close to the gap between the two inclined plates 1. Initially, the support column 301 supports the inclined plate 1. The distance between the two inclined plates 1 can be adjusted by adjusting the length of the inclined plate 1. The rotating shaft 302 is equipped with the rotating gear 303 and can rotate freely on the support column 301 along with the rotating gear 303. After the driving gear 203 rotates, it drives the driven gear 204 and the auxiliary gear 304 to rotate. The transmission chain 305 on the auxiliary gear 304 drives the rotating gear 303 to rotate. The extension rod 306 located on the rotating shaft 302 also rotates with the rotating gear 303, thereby intermittently lifting the inclined plate 1 and shaking off the leaves b attached to the inclined plate 1. The extension rod 306 can be arranged at intervals around the rotating gear 303 to increase the vibration frequency. Alternatively, extension rods 306 of different lengths can be provided to change the vibration amplitude of the inclined plate 1.

[0045] It also includes a high support column 4 and a low support column 5 disposed on the base plate 11 and used to tilt the inclined plate 1 toward the fruit frame c.

[0046] In this embodiment, the supporting high column 4 and the supporting low column 5 cause the inclined plate 1 to tilt towards the fruit frame c, increasing the likelihood that the fruit a can smoothly enter the fruit frame c. The angle parallel to the gap between the two inclined plates 1 is the front view angle, and the angle perpendicular to the gap between the two inclined plates 1 is the side view angle, as shown in the attached figure. Figure 9 and 10 As shown, the fruit frame c is located at one end near the supporting low column 5.

[0047] It also includes a hinge seat unit 6 disposed on the high support column 4 and the low support column 5 and used to connect the inclined plate 1.

[0048] In this embodiment, the hinge seat unit 6 allows the two inclined plates 1 to open and close, thereby facilitating the actuating lever unit 3 to actuate the inclined plates 1. (See attached...) Figure 3 As shown, the actuating lever unit 3 is staggered with the high support column 4 and the low support column 5 to ensure the stability of the inclined plate 1 during use.

[0049] The side of the inclined plate 1 near the high support column 4 and the low support column 5 is higher than the side near the support column 301.

[0050] In this embodiment, as shown in the appendix Figure 7 and attached Figure 8 As shown, the support column 301 supports one end of the inclined plate 1 near the gap. The side of the inclined plate 1 near the support column 4 and the support column 5 is higher than the side near the support column 301, so that the fallen fruit converges at the gap between the two inclined plates 1 and enters the fruit frame c, which can prevent the fruit a from rolling out to the sides to a certain extent.

[0051] The hinge base unit 6 includes a perforated hinge plate 601 disposed on the inclined plate 1, a perforated insertion slot plate 602 disposed on the supporting high leg post 4 and / or supporting low leg post 5, and a pin 603 disposed on the perforated insertion slot plate 602 and used for inserting the perforated hinge plate 601.

[0052] In this embodiment, the perforated hinge plate 601 and the perforated insertion slot plate 602 are hinged by the pin 603, so that the tilting plate 1 can swing on the high support column 4 and the low support column 5, thereby not affecting the toggle effect of the toggle rod unit 3.

[0053] The actuating lever unit 3 also includes an inclined actuating plate 307 disposed on the extension rod 306 and used to rotate and fit against the bottom end of the inclined plate 1.

[0054] In this embodiment, the tilting actuation plate 307 is attached to the bottom end of the tilting plate 1 after it is lifted, which increases the force-bearing area, improves vibration stability, and at the same time reduces the scratching of the tilting plate 1 by the extension rod 306.

[0055] The bidirectional conveyor belt unit 2 also includes transport plates 207 that are spaced apart on the conveyor chain 205 and used to support the fruit frame c.

[0056] In this embodiment, the transport plate 207 is used to place the fruit frame c, making the placement of the fruit frame c more stable, and at the same time protecting the transport chain 205.

[0057] It also includes a front end baffle 7 disposed on the base plate 11 and near the support column 4, for preventing the fruit a from rolling out.

[0058] In this embodiment, the fruit frame c is placed near the end of the supporting low column 5. The front baffle 7 serves to enclose the separation space between the two inclined plates 1, preventing the fruit a from rolling out from the end near the supporting high column 4 when poured in. Simultaneously, a fan can be installed on the front baffle 7 to blow towards the inclined plates 1, increasing the fruit-leaf separation efficiency.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of the present invention. These are non-inventive modifications and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A separating device for fruit harvesting, comprising a base plate (11), characterized in that: It also includes two inclined plates (1) set on the base plate (11) for rolling fruit (a) on the upper surface and dropping leaves (b) in the gaps; a bidirectional conveyor belt unit (2) set on the base plate (11) for loading and unloading fruit frames (c); and a lever unit (3) set on the base plate (11) and connected to the bidirectional conveyor belt unit (2) for lifting the inclined plates (1) when loading and unloading the fruit frames (c) to drop the leaves (b) remaining on the inclined plates (1). The bidirectional conveyor belt unit (2) includes an inverted L-shaped support block (201) disposed on the base plate (11), a cantilevered mounting plate (202) disposed on the inverted L-shaped support block (201), a drive gear (203) and a driven gear (204) respectively inserted at both ends of the cantilevered mounting plate (202), a conveyor chain (205) meshing with the drive gear (203) and the driven gear (204), and a forward and reverse motor (206) disposed on the base plate (11) for rotating the drive gear (203). The actuating lever unit (3) includes a support column (301) disposed on the base plate (11), a rotating shaft (302) disposed on the support column (301), a rotating gear (303) disposed on the rotating shaft (302), an additional gear (304) disposed on the output shaft of the driven gear (204), a transmission chain (305) meshing with the rotating gear (303) and the additional gear (304), and an extension rod (306) disposed on the rotating shaft (302) and used to rotate and actuate the inner side of the inclined plate (1). The lever unit (3) further includes an inclined lever plate (307) disposed on the extension rod (306) and used to rotate and fit against the bottom end of the inclined plate (1).

2. The separation device for fruit harvesting according to claim 1, characterized in that: It also includes a high support column (4) and a low support column (5) disposed on the base plate (11) and used to tilt the inclined plate (1) toward the fruit frame (c).

3. A separation device for fruit harvesting according to claim 2, characterized in that: It also includes a hinge seat unit (6) disposed on the support high column (4) and support low column (5) and used to connect the inclined plate (1).

4. A separating device for fruit harvesting according to claim 3, characterized in that: The side of the inclined plate (1) near the supporting high column (4) and supporting low column (5) is higher than the side near the supporting column (301).

5. A separation device for fruit harvesting according to claim 4, characterized in that: The hinge unit (6) includes a perforated hinge plate (601) disposed on the inclined plate (1), a perforated insertion slot plate (602) disposed on the supporting high column (4) and / or supporting low column (5), and a pin (603) disposed on the perforated insertion slot plate (602) and used for inserting the perforated hinge plate (601).

6. A separating device for fruit harvesting according to claim 1, characterized in that: The bidirectional conveyor belt unit (2) also includes transport plates (207) spaced apart on the conveyor chain (205) and used to support the fruit frame (c).

7. A separation device for fruit harvesting according to claim 2, characterized in that: It also includes a front end baffle (7) disposed on the base plate (11) and near the support column (4) to prevent the fruit (a) from rolling out.

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