Fruit grading device

Abstract

The utility model provides a fruit grading device which comprises a mounting frame, the mounting frame is horizontally arranged, a plurality of carrier rollers are arranged in the mounting frame, the distance between every two adjacent carrier rollers is gradually increased from one end to the other end, the two ends of each carrier roller are fixedly connected with a first mounting shaft and a second mounting shaft respectively, and the first mounting shaft and the second mounting shaft are rotationally connected with the mounting frame respectively. The first mounting shaft rotationally extends out of the mounting frame and is fixedly connected with a driven chain wheel located outside the mounting frame, a driving motor is further mounted at one end of the mounting frame, a driving chain wheel is further mounted on a rotating shaft of the driving motor, and a driving chain is wound between the driving chain wheel and all the driven chain wheels; the carrier roller comprises a sunken section which is continuously arranged from one end to the other end, and the sunken section is large in two ends, small in the middle and in arc transition. The fruit picking device solves the problem that in the prior art, the whole efficiency is reduced due to the fact that fruits possibly slip and detent at the positions with the equal size intervals of the fruits.

Description

Technical Field

[0001] This utility model relates to the field of grading equipment technology, and in particular to a fruit grading device. Background Technology

[0002] Fruits of different sizes generally have different values, such as oranges, peaches, and tangerines; larger fruits are usually more valuable. Therefore, during processing, they are typically graded according to their diameter. In existing technology, multiple rotating rollers are installed within a horizontally positioned frame, with the spacing between adjacent rollers gradually changing. Fruits are fed into the frame from the end with the smaller gap, and as the rollers rotate, the fruit moves from one end to the other, allowing fruits of different sizes to fall from different positions for grading. However, in actual operation, some fruits of similar size to the spacing (slightly larger than the spacing at their current position) may slip and become stuck during roller rotation, potentially reducing grading speed and overall efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a fruit grading device that solves the problem that fruits may slip and get stuck at a distance similar to their size, leading to a decrease in overall efficiency.

[0004] According to an embodiment of the present invention, a fruit grading device includes a mounting frame, which is horizontally arranged and has several rollers rotatably mounted inside it, extending from one end to the other. The distance between adjacent rollers gradually increases from one end to the other. Each roller has a first mounting shaft and a second mounting shaft fixedly connected to its two ends, respectively, and rotatably connected to the mounting frame. The first mounting shaft extends rotatably outside the mounting frame and is fixedly connected to a driven sprocket located outside the mounting frame. A drive motor is also mounted at one end of the mounting frame, and a drive sprocket is mounted on the shaft of the drive motor. A drive chain is wound between the drive sprocket and all the driven sprockets. A plurality of guide hoppers are fixedly connected below the mounting frame, extending continuously from one end to the other. The intervals between adjacent rollers have a projection within one of the guide hoppers. Each roller includes a recessed section extending continuously from one end to the other, with the recessed section being larger at both ends and smaller in the middle, and having an arc-shaped transition.

[0005] In the above embodiments, the rollers provided within the mounting frame include multiple recessed sections with an arc-shaped transition. When the rollers rotate, they can better push the fruit at a distance comparable to the spacing to continue moving forward, thereby reducing the probability of stagnation. This solves the problem in the prior art where some fruits may slip and stagnate at a distance comparable to their size, leading to a decrease in overall efficiency.

[0006] Furthermore, a feed hopper is fixedly connected to the end of the mounting frame that is closest to the idler rollers.

[0007] Furthermore, a pair of guide plates are fixedly connected inside the mounting frame, and the feed hopper has an outlet located between the two guide plates. The two guide plates are arranged in a figure-eight shape with the end with the smaller gap closer to the outlet.

[0008] Furthermore, the lower end faces of the two guide plates are located above the idler roller and are separate from the idler roller.

[0009] Furthermore, a mounting box is fixedly connected to one outer wall of the mounting frame, and all driven sprockets and driving sprockets are located inside the mounting box.

[0010] Furthermore, a silicone sleeve is fitted onto the recessed section.

[0011] Furthermore, support plates are fixedly connected to both ends of the mounting frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting up rollers with multiple recessed sections that have an arc-shaped transition, the rollers can better push fruits at similar distances forward when they rotate, thereby reducing the chance of them getting stuck. This solves the problem in existing technologies where fruits may slip and get stuck at a distance of similar size, leading to a decrease in overall efficiency. At the same time, multiple guide hoppers are set below to receive fruits of different sizes, facilitating collection after fruit grading. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the idler roller structure according to an embodiment of the present utility model;

[0017] In the above attached figures:

[0018] 1. Mounting frame; 2. Idler roller; 3. First mounting shaft; 4. Second mounting shaft; 5. Drive sprocket; 6. Drive motor; 7. Drive sprocket; 8. Guide hopper; 9. Inner recess section; 10. Feed hopper; 11. Silicone sleeve; 12. Support plate; 13. Guide plate; 14. Mounting box; 15. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are 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 are not intended to 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.

[0021] In an exemplary implementation, such as Figure 1-3 As shown, this embodiment provides a fruit grading device, which includes a mounting frame 1. The mounting frame 1 is horizontally arranged and has several rollers 2 rotatably mounted inside it, extending from one end to the other. The distance between two adjacent rollers 2 gradually increases from one end to the other. Each roller 2 has a first mounting shaft 3 and a second mounting shaft 4 fixedly connected to its two ends, respectively, and rotatably connected to the mounting frame 1. The first mounting shaft 3 extends rotatably outside the mounting frame 1 and is fixedly connected to a driven sprocket 5 located outside the mounting frame 1. A drive motor 6 is also installed at one end of the mounting frame 1. The shaft of the drive motor 6 is also equipped with a drive sprocket 7. A drive chain 8 is wound between the drive sprocket 7 and all the driven sprockets 5. A plurality of guide hoppers 9 are fixedly connected below the mounting frame 1, extending continuously from one end to the other. The intervals between adjacent rollers 2 have an orthographic projection within one of the guide hoppers 9. Each roller 2 includes a recessed section 10 extending continuously from one end to the other. The recessed section 10 is larger at both ends and smaller in the middle, with an arc-shaped transition.

[0022] In the above embodiments, the rollers 2 installed within the mounting frame 1 include multiple recessed sections 10 with an arc-shaped transition. When the rollers 2 rotate, they can better push fruits at positions with comparable spacing forward, thereby reducing the probability of stagnation and solving the problem in the prior art where fruits may slip and stagnate at a distance comparable to their size, leading to reduced overall efficiency. The correspondence between the guide hopper 9 and the multiple rollers 2 can be adjusted according to specific circumstances to reasonably adjust the grading size range. In this solution, a feeding hopper 11 for fruit introduction is also fixedly connected to the mounting frame 1 with a small spacing between the rollers 2. The fruit is guided through the feeding hopper 11... After entering, the fruit enters the mounting frame 1 through the outlet at its lower end. The drive motor 6 runs, causing the chain to rotate through the drive sprocket 7, which in turn drives the driven sprocket 5 to rotate, causing the roller 2 inside the mounting frame 1 to rotate. The fruit can then move to the other end, achieving grading during the movement. The recessed section 10, which is large at both ends and small in the middle, can support the fruit, thus helping it to flip forward and move more smoothly. Furthermore, a silicone sleeve 12 can be fitted onto the recessed section 10, which provides greater friction when in contact with the fruit, further assisting in flipping the fruit forward. At the same time, this also reduces the chance of the fruit being injured due to collision.

[0023] like Figure 1 , 2 As shown, support plates 13 are fixedly connected to both ends of the mounting frame 1. The support plates 13 make the mounting frame 1 stand stably on the ground, and at the same time raise the mounting frame 1 to leave installation space for the guide hopper 9 below. In a further embodiment, a pair of guide plates 14 are fixedly connected inside the mounting frame 1. The outlet of the feed hopper 11 is located between the two guide plates 14. The two guide plates 14 are arranged in a figure-eight shape and the end with the smaller gap is closer to the outlet. The fruit falls between the two guide plates 14 first and will not move backward accidentally due to the obstruction of the guide plates 14. At the same time, the lower end face of the two guide plates 14 is located above the idler roller 2 and is away from the idler roller 2 to avoid interfering with the rotation of the idler roller 2.

[0024] like Figure 2 As shown, a mounting box 15 is also fixedly connected to one side of the outer wall of the mounting frame 1. All driven sprockets 5 and driving sprockets 7 are located inside the mounting box 15. This can provide protection for the driven sprockets 5, driving sprockets 7 and the chain, preventing external debris from affecting them. At the same time, an inspection door can be set on the mounting box 15, such as on the bottom surface, to facilitate subsequent maintenance.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fruit grading device, characterized in that, The device includes a mounting frame, which is horizontally positioned and has several idlers rotatably mounted inside it, extending from one end to the other. The distance between adjacent idlers gradually increases from one end to the other. Each idler has a first mounting shaft and a second mounting shaft fixedly connected to its two ends, respectively, and both shafts are rotatably connected to the mounting frame. The first mounting shaft extends rotatably outside the mounting frame and is fixedly connected to a driven sprocket located outside the mounting frame. A drive motor is also mounted at one end of the mounting frame, and a drive sprocket is mounted on the shaft of the drive motor. A drive chain is wound between the drive sprocket and all the driven sprockets. A plurality of guide hoppers are fixedly connected below the mounting frame, extending continuously from one end to the other. The intervals between adjacent idlers have an orthographic projection within one of the guide hoppers. Each idler includes a recessed section extending continuously from one end to the other, with the recessed section being larger at both ends and smaller in the middle, and having an arc-shaped transition.

2. The fruit grading device as described in claim 1, characterized in that, A feed hopper is also fixedly connected to the end of the mounting frame that is closer to the idler rollers.

3. The fruit grading device as described in claim 2, characterized in that, A pair of guide plates are also fixedly connected inside the mounting frame. The feed hopper has an outlet located between the two guide plates. The two guide plates are arranged in a figure-eight shape and the end with the smaller gap is close to the outlet.

4. The fruit grading device as described in claim 3, characterized in that, The lower end faces of the two guide plates are located above the idler roller and are separate from the idler roller.

5. The fruit grading device as described in claim 1, characterized in that, A mounting box is also fixedly connected to one side of the outer wall of the mounting frame, and all the driven sprockets and the driving sprockets are located inside the mounting box.

6. The fruit grading device as described in claim 1, characterized in that, A silicone sleeve is also fitted onto the recessed section.

7. The fruit grading device according to any one of claims 1-6, characterized in that, Support plates are also fixedly connected to both ends of the mounting frame.

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