Fruit sorting device

Abstract

The invention belongs to the technical field of fruit sorting, and discloses a fruit sorting device which is mounted on a roller chain serving as a conveying chain and comprises a fruit support, an adapter plate and a chain support connected with an outer chain link of the roller chain, and the adapter plate is slidably connected to the chain support in the vertical direction; a rotating shaft is installed on the adapter plate, a connecting plate is arranged on one side of the fruit support, and the lower portion of the connecting plate is rotationally connected to the rotating shaft; an arc-shaped long-strip-shaped hole with the rotating shaft as the center axis is formed in the upper portion of the connecting plate, a limiting shaft with one end inserted into the arc-shaped long-strip-shaped hole is installed on the upper portion of the chain support, the height of the arc-shaped long-strip-shaped hole in the horizontal direction is gradually increased from one end of the arc-shaped long-strip-shaped hole to the other end of the arc-shaped long-strip-shaped hole, and a clamping position extending upwards is formed in the other end of the arc-shaped long-strip-shaped hole. One end of the limiting shaft is arranged in the clamping position in a matched mode. The whole structure is relatively simple, the occupied space is not too large, and the cost is relatively low.

Description

Technical Field

[0001] The present invention belongs to the technical field of fruit sorting, and particularly relates to a fruit sorting device. Background Art

[0002] Today, with the highly developed market economy, off-site sales, bulk agricultural product transactions, and international agricultural product trade are all inseparable from standardization. And fruit sorting is the most fundamental step to achieve the standardization of apple commodities. China is a major fruit-producing country, but the vast majority of apples come from rural collectives and individual growers, and their quality varies greatly. Coupled with the impacts of different degrees of damage during the picking and transportation processes, it brings certain difficulties to the fruit sorting work. At present, most apple sorting work is completed manually, with the disadvantages of high labor intensity, low productivity, and unstable sorting accuracy. And the existing fruit sorters generally focus on large production lines, mostly with relatively complex structures, large occupied spaces, and relatively high manufacturing costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a fruit sorting device to solve the above problems existing in the prior art.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A fruit sorting device is installed on a roller chain serving as a conveying chain, and includes a fruit tray, a transfer plate, and a chain bracket connected to the outer link of the roller chain. The transfer plate is slidably connected to the chain bracket in the vertical direction; a rotating shaft is installed on the transfer plate, and a connecting plate is arranged on one side of the fruit tray. The lower part of the connecting plate is rotatably connected to the rotating shaft; an arc-shaped long hole centered on the rotating shaft is opened in the upper part of the connecting plate, and a limiting shaft with one end inserted into the arc-shaped long hole is installed on the upper part of the chain bracket. The height of the arc-shaped long hole in the horizontal direction gradually increases from one end to the other end, and a clamping position extending upward is opened at the other end of the arc-shaped long hole, and one end of the limiting shaft is fitted into the clamping position.

[0006] As a preferred technical solution in the present invention, a stepped hole is opened in the lower part of the connecting plate. The stepped hole includes a first round hole and a second round hole that are sequentially communicated from one end of the connecting plate away from the chain bracket to the other end. The inner diameter of the first round hole is larger than that of the second round hole. A first flange bearing is fitted and installed in the stepped hole, and the inner ring of the first flange bearing is sleeved outside the rotating shaft; a first clamping groove is opened on the rotating shaft, and a first snap ring is clamped in the first clamping groove. The first snap ring abuts against the end of the first flange bearing away from the chain bracket.

[0007] As a preferred technical solution in the present invention, a longitudinal long hole extending in the vertical direction is opened on the upper part of the chain bracket, and the longitudinal long hole includes a third long hole and a fourth long hole which are connected in sequence from one side of the chain bracket to the other side, and the width of the fourth long hole is greater than the width of the third long hole; a second flange bearing is matched and installed in the longitudinal long hole, and a pin shaft is installed on the adapter plate, and one end of the pin shaft matches and passes through the inner ring of the second flange bearing; a second groove is opened on one end of the pin shaft, and a second retaining spring is clamped in the second groove, and the second retaining spring abuts against the end of the second flange bearing away from the adapter plate.

[0008] As a preferred technical solution in the present invention, two longitudinal elongated holes are provided on the upper part of the fruit tray, and two second flange bearings are matched and installed in each longitudinal elongated hole.

[0009] As a preferred technical solution in the present invention, a third clamping groove is formed at one end of the limit shaft, a third clamping spring is clamped in the third clamping groove, and the third clamping spring abuts against a side of the connecting plate away from the chain bracket.

[0010] As a preferred technical solution in the present invention, the upper part of the fruit tray is a horizontally arranged U-shaped support frame, the opening direction of the U-shaped support frame is facing away from the chain bracket, and the upper end of the connecting plate is connected to the middle part of the U-shaped support frame; the middle part of the U-shaped support frame is rotatably connected with a support roller, two support wheels are installed between the two side plates of the U-shaped support frame, and the fruit tray is supported between the support roller and the two support wheels; the two support wheels are both conical wheels whose diameters decrease from one end away from each other to the other end.

[0011] As a preferred technical solution in the present invention, the two support wheels are installed on the mounting shaft, and mounting holes are correspondingly arranged on the two side panels of the U-shaped support frame, and the two ends of the mounting shaft are respectively inserted into the mounting holes of the two side panels.

[0012] As a preferred technical solution in the present invention, both side panels of the U-shaped support frame are provided with at least two mounting holes distributed along the length direction of the side panels, and the mounting holes on the two side panels are arranged in one-to-one correspondence.

[0013] As a preferred technical solution in the present invention, an upwardly arranged installation groove is provided in the middle of the U-shaped support frame, and fixed shafts are provided on both sides of the installation groove. The first clamping groove and the second clamping groove are respectively provided at both ends of the support roller, and the first clamping groove and the second clamping groove are respectively located on both sides of the support roller, and the first clamping groove and the second clamping groove are respectively clamped on the two fixed shafts.

[0014] As a preferred technical solution in the present invention, two mounting plates for connecting with the outer links of the roller chain are arranged at the lower end of the chain bracket, and the two mounting plates are arranged in parallel.

[0015] Beneficial effects: When the present invention is in operation, one end of the limit shaft is cooperatively arranged in the clamping position. The roller chain of the conveying chain drives the fruit tray to move along a fixed track through the chain bracket. After the fruit falls onto the fruit tray, the conveying chain continues to move. When the fruit tray brakes to a specified position, an external device lifts the fruit tray, causing the fruit tray and the adapter plate to move upward together until the limit shaft disengages from the clamping position. Then, the external device deflects the fruit tray to one side, causing the limit shaft to slide to one end of the arc-shaped long hole. At this time, the fruit tray is inclined, and the fruit on the fruit tray can fall to the specified position, realizing the sorting of fruits. The entire structure is relatively simple, does not occupy too much space, and has a relatively low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 is a three-dimensional schematic diagram of the present invention from another perspective;

[0018] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0019] Figure 4 is a three-dimensional schematic diagram of the fruit tray in the present invention;

[0020] Figure 5 is a three-dimensional schematic diagram of the fruit tray in the present invention from another perspective;

[0021] Figure 6 is a three-dimensional schematic diagram of the support roller in the present invention;

[0022] Figure 7 is a side view of the support roller in the present invention.

[0023] In the figure: 1 - fruit tray; 101 - connecting plate; 102 - arc-shaped long hole; 103 - U-shaped support frame; 104 - support roller; 105 - support wheel; 106 - mounting hole; 2 - adapter plate; 3 - chain bracket; 301 - mounting plate; 4 - rotating shaft; 5 - limit shaft; 6 - first flange bearing; 7 - first circlip; 8 - second flange bearing; 9 - pin shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but do not constitute a limitation to the present invention.

[0025] Example:

[0026] like Figures 1 - 7 As shown, this embodiment provides a fruit sorting device, which is installed on a roller chain as a conveyor chain, including a fruit tray 1, an adapter plate 2 and a chain bracket 3 connected to the outer link of the roller chain, so that the chain bracket 3 can move with the movement of the roller chain, and the adapter plate 2 is slidably connected to the chain bracket 3 in the vertical direction, so that the adapter plate 2 can move up and down relative to the chain bracket 3; a rotating shaft 4 is installed on the adapter plate 2, and a connecting plate 101 is provided on one side of the fruit tray 1, and the lower part of the connecting plate 101 is rotatably connected to the rotating shaft 4, so that the fruit tray 1 can rotate relative to the adapter plate 2, so that the water on the fruit tray 1 can be placed at a specified position. The fruit is unloaded; an arc-shaped long hole 102 with the rotating shaft 4 as the central axis is opened on the upper part of the connecting plate 101, and a limiting shaft 5 with one end inserted into the arc-shaped long hole 102 is installed on the upper part of the chain bracket 3. The height of the arc-shaped long hole 102 in the horizontal direction gradually increases from one end to the other end, and the other end of the arc-shaped long hole 102 is opened with an upwardly extending clamping position, and one end of the limiting shaft 5 is cooperated and arranged in the clamping position, so that the limiting shaft 5 can slide relative to the arc-shaped long hole 102, and when one end of the limiting shaft 5 is cooperated and arranged in the clamping position, due to the self-weight of the fruit tray 1, the stability of the fruit tray 1 can be guaranteed, and it is convenient to transport the fruit.

[0027] When the present invention is in operation, one end of the limit shaft 5 is cooperatedly arranged in the engaging position, and the roller chain of the conveyor chain drives the fruit tray 1 to run along a fixed track through the chain bracket 3. After the fruit falls onto the fruit tray 1, the conveyor chain continues to run. When the fruit tray 1 is braked to a specified position, an external device lifts the fruit tray 1 so that the fruit tray 1 moves upward together with the adapter plate 2 until the limit shaft 5 is disengaged from the engaging position. Then the external device moves the fruit tray 1 to one side so that the limit shaft 5 slides to one end of the arc-shaped long strip hole 102. At this time, the fruit tray 1 is tilted, and the fruit on the fruit tray 1 can fall to the specified position to realize the sorting of the fruit. The whole structure is relatively simple, does not take up too much space, and has a relatively low cost.

[0028] As a preferred implementation in this embodiment, it should be further noted that a stepped hole is formed in the lower part of the connecting plate 101. The stepped hole includes a first round hole and a second round hole that are sequentially communicated from one end of the connecting plate 101 away from the chain bracket 3 to the other end. The inner diameter of the first round hole is larger than that of the second round hole. A first flange bearing 6 is fitted in the stepped hole, so that the first flange bearing 6 can only move towards one end of the connecting plate 101. The inner ring of the first flange bearing 6 is sleeved outside the rotating shaft 4, so that the connecting plate 101 has better flexibility when rotating relative to the rotating shaft 4. A first clamping groove is formed in the rotating shaft 4, and a first snap spring 7 is clamped in the first clamping groove. The first snap spring 7 abuts against one end of the first flange bearing 6 away from the chain bracket 3, so as to ensure the stability of the first flange bearing 6, prevent the first flange bearing 6 from sliding randomly, and also ensure the stability of the connecting plate 101 on the rotating shaft 4.

[0029] As a preferred implementation in this embodiment, it should be further noted that a longitudinal long hole extending in the vertical direction is formed in the upper part of the chain bracket 3. The longitudinal long hole includes a third long hole and a fourth long hole that are sequentially communicated from one side of the chain bracket 3 to the other side. The width of the fourth long hole is larger than that of the third long hole. A second flange bearing 8 is fitted in the longitudinal long hole, so that the second flange bearing 8 can only move towards the other side of the chain bracket 3. A pin shaft 9 is installed on the adapter plate 2, and one end of the pin shaft 9 penetrates through the inner ring of the second flange bearing 8 in a matching manner. When the adapter plate 2 drives the pin shaft 9 to lift together, the friction force can be reduced through the second flange bearing 8. A second clamping groove is formed in one end of the pin shaft 9, and a second snap spring is clamped in the second clamping groove. The second snap spring abuts against one end of the second flange bearing 8 away from the adapter plate 2, ensuring that the second flange bearing 8 is stably installed in the longitudinal long hole. It should be noted that in this embodiment, one or two longitudinal long holes can be provided. When one longitudinal long hole is provided, two second flange bearings 8 are preferably installed in the longitudinal long hole. When two longitudinal long holes are provided, only one second flange bearing 8 can be installed in each longitudinal long hole.

[0030] As a preferred implementation in this embodiment, it should be further noted that two longitudinal long holes are formed in the upper part of the fruit tray 1, and two second flange bearings 8 are fitted in each longitudinal long hole, which can better ensure that the adapter plate 2 can drive the fruit tray 1 to slide stably in the vertical direction on the chain bracket 3.

[0031] As a preferred implementation in this embodiment, it should be further noted that a third clamping groove is formed in one end of the limit shaft 5, and a third snap spring is clamped in the third clamping groove. The third snap spring abuts against the side of the connecting plate 101 away from the chain bracket 3, so as to ensure the stability of the limit shaft 5 and the cooperation effect between the limit shaft 5 and the connecting plate 101.

[0032] As a preferred implementation in this embodiment, it should be further noted that the upper part of the fruit tray 1 is a horizontally arranged U-shaped support frame 103. The opening direction of the U-shaped support frame 103 faces away from the chain support 3. The upper end of the connecting plate 101 is connected to the middle part of the U-shaped support frame 103, preferably integrally formed. A support roller 104 is rotatably connected to the middle part of the U-shaped support frame 103. Two support wheels 105 are installed between the two side plates of the U-shaped support frame 103. The support roller 104 and the two support wheels 105 cooperate to form a triangular support structure, so that the fruit tray 1 can be stably supported between the support roller 104 and the two support wheels 105. Both of the two support wheels 105 are conical wheels with diameters decreasing from one end far away from each other to the other end, so that the fruit can be more stably supported between the two support wheels 105. Further, the support roller 104 can be a structure with a diameter gradually increasing from the middle to both ends, so that the fruit can be more stable when supported between the support roller 104 and the two support wheels 105.

[0033] As a preferred implementation in this embodiment, it should be further noted that both of the two support wheels 105 are installed on the mounting shaft. Corresponding mounting holes 106 are provided on the two side plates of the U-shaped support frame 103. The two ends of the mounting shaft are respectively inserted into the mounting holes 106 of the two side plates. It should be noted that in practice, the U-shaped support frame 103 is made of plastic and has a certain elasticity, so that the mounting and dismounting of the mounting shaft can be easily realized.

[0034] As a preferred implementation in this embodiment, it should be further noted that at least two mounting holes 106 are provided on each of the two side plates of the U-shaped support frame 103 and are distributed along the length direction of the side plates. The mounting holes 106 on the two side plates are arranged in one-to-one correspondence, so that the positions of the two support wheels 105 can be adjusted, that is, the distance between the two support wheels 105 and the support roller 104 can be adjusted to better adapt to different fruits.

[0035] As a preferred implementation in this embodiment, it should be further noted that a mounting groove facing upward is provided in the middle part of the U-shaped support frame 103. Fixed shafts are provided on both sides of the mounting groove. First clamping grooves and second clamping grooves are respectively provided at both ends of the support roller 104, and the first clamping groove and the second clamping groove are respectively located on both sides of the support roller 104. The first clamping groove and the second clamping groove are respectively clamped on the two fixed shafts. In actual installation, the first clamping groove can be first cooperated and clamped with one fixed shaft, and then the support roller 104 is rotated so that the second clamping groove is cooperated and clamped with the other fixed shaft to realize the installation of the support roller 104 and ensure the stability of the support roller 104.

[0036] As a preferred implementation in this embodiment, it should be further noted that two mounting plates 301 for connecting with the outer link of the roller chain are provided at the lower end of the chain bracket 3. The two mounting plates 301 are arranged in parallel. In practice, the two mounting plates 301 can be directly welded to the outer link, or two fixing plates are welded on the outer link, and then the two mounting plates 301 are connected in cooperation with the two fixing plates, such as by bolt connection.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fruit sorting device, mounted on a roller chain as a conveyor chain, characterized in that: The invention comprises a fruit holder (1), an adapter plate (2) and a chain bracket (3) connected to the outer chain link of a roller chain, wherein the adapter plate (2) is slidably connected to the chain bracket (3) in a vertical direction; a rotating shaft (4) is installed on the adapter plate (2); a connecting plate (101) is arranged on one side of the fruit holder (1); the lower part of the connecting plate (101) is rotatably connected to the rotating shaft (4); an arc-shaped long hole (102) with the rotating shaft (4) as the central axis is provided on the upper part of the connecting plate (101); a limiting shaft (5) with one end inserted into the arc-shaped long hole (102) is installed on the upper part of the chain bracket (3); the height of the arc-shaped long hole (102) in the horizontal direction gradually increases from one end to the other end; the other end of the arc-shaped long hole (102) is provided with a clamping position extending upward, and one end of the limiting shaft (5) is matched and arranged in the clamping position.

2. A fruit sorting device according to claim 1, characterized in that: A stepped hole is provided at the bottom of the connecting plate (101), and the stepped hole comprises a first circular hole and a second circular hole which are connected in sequence from one end of the connecting plate (101) away from the chain bracket (3) to the other end, and the inner diameter of the first circular hole is larger than the inner diameter of the second circular hole. A first flange bearing (6) is matched and installed in the stepped hole, and the inner ring of the first flange bearing (6) is sleeved on the outside of the rotating shaft (4); a first clamping groove is provided on the rotating shaft (4), and a first clamping spring (7) is clamped in the first clamping groove, and the first clamping spring (7) abuts against one end of the first flange bearing (6) away from the chain bracket (3).

3. A fruit sorting device according to claim 1 or 2, characterized in that: The upper part of the chain bracket (3) is provided with a longitudinal long hole extending in the vertical direction, and the longitudinal long hole includes a third long hole and a fourth long hole which are connected in sequence from one side of the chain bracket (3) to the other side, and the width of the fourth long hole is greater than the width of the third long hole; a second flange bearing (8) is matched and installed in the longitudinal long hole, and a pin shaft (9) is installed on the adapter plate (2), and one end of the pin shaft (9) matches and passes through the inner ring of the second flange bearing (8); a second retaining groove is provided on one end of the pin shaft (9), and a second retaining spring is clamped in the second retaining groove, and the second retaining spring abuts against the end of the second flange bearing (8) away from the adapter plate (2).

4. A fruit sorting device according to claim 3, characterized in that: The upper part of the fruit tray (1) is provided with two longitudinal elongated holes, and two second flange bearings (8) are matched and installed in each longitudinal elongated hole.

5. A fruit sorting device according to claim 1, characterized in that: A third clamping groove is formed at one end of the limiting shaft (5), a third clamping spring is clamped in the third clamping groove, and the third clamping spring abuts against a side of the connecting plate (101) away from the chain bracket (3).

6. A fruit sorting device according to claim 1, characterized in that: The upper part of the fruit tray (1) is a horizontally arranged U-shaped support frame (103), the opening direction of the U-shaped support frame (103) is facing away from the chain support (3), and the upper end of the connecting plate (101) is connected to the middle part of the U-shaped support frame (103); the middle part of the U-shaped support frame (103) is rotatably connected to a support roller (104), two support wheels (105) are installed between two side plates of the U-shaped support frame (103), and the fruit tray (1) is supported between the support roller (104) and the two support wheels (105); the two support wheels (105) are both conical wheels whose diameters decrease from one end away from each other to the other end.

7. A fruit sorting device according to claim 6, characterized in that: The two support wheels (105) are both mounted on the mounting shaft. The two side plates of the U-shaped support frame (103) are correspondingly provided with mounting holes (106). The two ends of the mounting shaft are respectively inserted into the mounting holes (106) of the two side plates.

8. A fruit sorting device according to claim 7, characterized in that: Both side panels of the U-shaped support frame (103) are provided with at least two mounting holes (106) distributed along the length direction of the side panels, and the mounting holes (106) on the two side panels are arranged in a one-to-one correspondence.

9. A fruit sorting device according to any one of claims 6-8, characterized in that: The U-shaped support frame (103) has an upwardly disposed mounting groove in the middle, and fixed shafts are disposed on both sides of the mounting groove. The support roller (104) has a first clamping groove and a second clamping groove at both ends, respectively. The first clamping groove and the second clamping groove are located on both sides of the support roller (104), and the first clamping groove and the second clamping groove are clamped on the two fixed shafts, respectively.

10. The fruit sorting device according to claim 1, characterized in that: The lower end of the chain bracket (3) is provided with two mounting plates (301) for connecting with the outer chain links of the roller chain, and the two mounting plates (301) are arranged in parallel.

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