Fine sorting equipment for agricultural products

Abstract

The invention discloses fine sorting equipment for agricultural products, which relates to the technical field of agricultural machinery and is characterized in that a rolling bar conveying belt is mounted on the ground, an included angle between the rolling bar conveying belt and the ground is an acute angle, a hopper is mounted at one end, close to the ground, of the rolling bar conveying belt, and a transfer plate is mounted at one end, away from the hopper, of the rolling bar conveying belt; the rolling bar grader is installed on the ground close to the rolling bar conveying belt, the transfer plate is used for transferring materials on the rolling bar conveying belt to the rolling bar grader, a water tank is arranged in the rolling bar grader, and the dewatering unit is installed on the side wall of the rolling bar grader and used for dewatering the materials and conveying the materials to the belt conveying belt at the same time. The belt conveying belt is installed under the dewatering unit, and the collecting box is placed below one end of the belt conveying belt. The agricultural product fine sorting device solves the problems that an existing agricultural product fine sorting device is low in sorting speed, and meanwhile agricultural products are prone to being damaged when the sorted agricultural products fall onto a collecting box or a conveying belt.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a device for finely sorting agricultural products. Background Art

[0002] With the popularization of mechanized planting, farmers' productivity has increased, and only a small number of farmers are needed to achieve a large number of crop planting and harvesting. After receiving the existing agricultural products, they need to be sorted and selected according to their size, and then the same size is cleaned and packaged for sale. When sorting and selecting existing fruit and vegetable agricultural products, a roller grader is generally used. The roller grader is mainly composed of a frame, rollers, a conveyor chain, a transmission and other parts. Its working principle is to drive the rollers on the grading bed through the rotation of the double helix, so that it moves forward in parallel, and then screens and grades the materials.

[0003] The existing roller grader uses rollers to move agricultural products. In order to avoid damaging the agricultural products, the rotation speed of the rollers is generally reduced, resulting in a decrease in the picking speed. At the same time, after the roller grader completes the screening of fruit and vegetable agricultural products, the fruit and vegetable agricultural products will fall directly onto the conveyor below and be transported to the packaging box through the conveyor for collection and packaging. Since the roller grader has a certain height and the conveyor is at the bottom of the roller grader, there is a certain height difference between the discharge port of the roller grader and the conveyor, which can easily cause damage to the agricultural products.

[0004] Therefore, a kind of agricultural product fine picking equipment is needed. Summary of the invention

[0005] In view of the above shortcomings, the present invention provides an agricultural product fine sorting device, which can solve the problem that the existing agricultural product fine sorting device has a low sorting speed and easily causes damage to the agricultural products when the agricultural products fall into the collection box or the conveyor belt after sorting. The specific technical solution is as follows:

[0006] A fine sorting equipment for agricultural products comprises a hopper, a roller conveyor belt, a transfer plate, a roller grader, a dehydration unit, a partition, a belt conveyor belt and a collecting box, wherein the roller conveyor belt is installed on the ground and has an acute angle with the ground, the hopper is installed at one end of the roller conveyor belt close to the ground, the transfer plate is installed at one end of the roller conveyor belt away from the hopper, the roller grader is installed on the ground close to the roller conveyor belt, the transfer plate is used to transfer the materials on the roller conveyor belt to the roller grader, the roller grader is provided with a water trough, the partition divides the water trough into a plurality of areas, and the fallen materials will fall into the water, the dehydration unit is installed on the side wall of the roller grader, and is used to dehydrate the materials and convey the materials to the belt conveyor belt at the same time, the belt conveyor belt is installed directly below the dehydration unit, and the collecting box is placed below one end of the belt conveyor belt.

[0007] Preferably, it further comprises a water circulation device, wherein the water circulation device is connected to the water tank via a solenoid valve.

[0008] Preferably, it also includes a first water spray channel and a second water spray channel, the first water spray channel is installed on the roller conveyor belt, and the second water spray channel is installed on the roller grader, the end of the roller conveyor belt close to the ground is connected to one end of a first drain pipe, the other end of the first drain pipe is connected to the water circulation device, and the first water spray channel and the second water spray channel are both connected to the water circulation device.

[0009] Preferably, the rollers on the roller conveyor belt are provided with brushes.

[0010] Preferably, the side walls of the first water spray channel and the second water spray channel are made of transparent material.

[0011] Preferably, the dehydration unit includes a water filter pipe, a sleeve, a first filter screen, a second filter screen, a dehydration pipe, a spiral shaft, a second drain pipe and a third drain pipe. One end of the water filter pipe passes through the side wall of the water tank and is connected to the water tank. The connection is located above the bottom of the water tank. The other end of the water filter pipe is tilted downward and connected to one end of the dehydration pipe. A drainage groove is provided on the inner bottom wall of the water filter pipe. The drainage groove is connected to a water circulation device through a second drain pipe. The first filter screen is installed at the opening edge of the drainage groove. The axis of the dehydration pipe is in a vertical state. The spiral shaft is vertically fixed in the dehydration pipe. The sleeve is mounted on the outer wall of the dehydration pipe. The second filter screen is installed between the sleeve and the dehydration pipe. The bottom of the sleeve is connected to the water circulation device through the third drain pipe. The other end of the dehydration pipe is located directly above the belt conveyor.

[0012] Preferably, the bottom of the sleeve is provided with an inclined surface to prevent water from flowing back into the dehydration pipeline.

[0013] Preferably, the lead angle of the spiral shaft is 30-45 degrees.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention lubricates the rollers of the roller grader through the second water spray pipe, thereby reducing the friction between the agricultural products and the rollers and reducing the possibility of the rollers damaging the agricultural products. Therefore, the roller rotation speed can be increased while ensuring the safety of the agricultural products, thereby improving the sorting speed.

[0016] 2. The present invention sets a water tank in the roller grader and divides the water tank into multiple layers of areas with partitions. Each area corresponds to a different picking grade. When the agricultural products fall from the gap between the rollers, they will fall onto the water surface without causing a large impact, thereby avoiding damage to the agricultural products.

[0017] 3. The present invention cleans the agricultural products through the first water spray pipe in combination with a brush, then rinses the agricultural products through the second water spray pipe, and finally dehydrates the agricultural products through the dehydration unit, and cleans the agricultural products while selecting them, thereby improving the processing efficiency of the agricultural products after harvest. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention;

[0021] Figure 3 is a side cross-sectional view of the present invention;

[0022] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0023] 1. Hopper; 2. Roller conveyor belt; 3. Transfer plate; 4. Roller grader; 5. Belt conveyor belt; 6. Collecting box; 7. Water trough; 8. First water spray channel; 9. Second water spray channel; 10. First drain pipe; 11. Water filter pipe; 12. Sleeve; 13. First filter screen; 14. Second filter screen; 15. Dehydration pipe; 16. Screw shaft; 17. Second drain pipe; 18. Third drain pipe; 19. Drain trough; 20. Partition. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] refer to Figure 1The roller conveyor belt 2 is installed on the ground through anchor screws and the angle between it and the ground is acute, which is used to transport agricultural products from low places to high places. The hopper 1 is installed on the end of the roller conveyor belt 2 close to the ground through bolts, which is used to load agricultural products that need to be picked and evenly distribute the agricultural products on the roller conveyor belt 2. The transfer plate 3 is installed on the end of the roller conveyor belt 2 away from the hopper 1 through bolts. The roller grader 4 is installed on the ground close to the roller conveyor belt 2 through anchor screws. The transfer plate 3 is used to transfer the materials on the roller conveyor belt 2 to the roller grader 4. The agricultural products will move on the roller grader 4, and the roller gap on the roller grader 4 will gradually increase. The agricultural products smaller than the roller gap will fall down. The roller grader 4 is provided with a water tank 7, and the partition 20 divides the water tank 7 into multiple areas, each area corresponds to the picking level, and the partition 20 is installed in the water tank 7 through the card slot, and the position can be adjusted according to the actual situation. The falling agricultural products will fall onto the water without causing a large impact, thereby preventing the agricultural products from being damaged. The dehydration unit is installed on the side wall of the roller grader 4, and is used to dehydrate the materials while conveying the materials to the belt conveyor 5. The belt conveyor 5 is installed directly below the dehydration unit, and is used to transfer the agricultural products to the collection box 6. The collection box 6 is placed below one end of the belt conveyor 5.

[0026] The water circulation device is connected to the water tank 7 through the electromagnetic valve, and the impurities washed from the agricultural products are filtered through the water circulation device, and then the filtered water is transported to the first water spray pipe and the second water spray pipe through the water pump, so as to recycle the water in the water tank 7 and reduce the cost. When the water in the water tank 7 needs to be replaced, the electromagnetic valve can be opened to completely drain the water in the water tank 7.

[0027] refer to Figure 2 , a plurality of water spray holes are arrayed in the first water spray channel 8 and the second water spray channel 9. The first water spray channel 8 is installed on the roller conveyor belt 2, and is used to wash the agricultural products on the roller conveyor belt 2, reducing the subsequent manual cleaning steps and improving production efficiency. The second water spray channel 9 is installed on the roller grader 4, and is used to lubricate the rollers on the roller grader 4, reducing the friction between the agricultural products and the rollers, and reducing the possibility of the rollers damaging the agricultural products. Therefore, the roller rotation speed can be increased under the premise of ensuring the safety of the agricultural products, thereby improving the sorting speed. At the same time, the second water spray pipe can perform a secondary rinse on the agricultural products to further ensure the cleanliness of the surface of the agricultural products. The water sprayed by the second water spray pipe will keep the water tank 7 in an overflow state, and the agricultural products in the water tank 7 are guided by a large overflow volume, so that they overcome the situation where part of the volume is underwater and flow to the dehydration unit. One end of the roller conveyor belt 2 close to the ground is connected to one end of the first drain pipe 10, and the other end of the first drain pipe 10 is connected to the water inlet of the water circulation device, and the first water spray channel 8 and the second water spray channel 9 are both connected to the water outlet of the water circulation device.

[0028] The rollers on the roller conveyor belt 2 are provided with brushes, which are used to scrub the surface of the agricultural products, thereby further improving the cleanliness of the surface of the agricultural products. The side walls of the first water spray channel 8 and the second water spray channel 9 are made of transparent materials, such as glass and polymer materials, so that the staff can observe the agricultural products conveniently.

[0029] refer to Figure 3 and Figure 4 The dehydration unit includes a water filter pipe 11, a sleeve 12, a first filter screen 13, a second filter screen 14, a dehydration pipe 15, a spiral shaft 16, a second drain pipe 17 and a third drain pipe 18. One end of the water filter pipe 11 passes through the side wall of the water tank 7 and is connected to the water tank 7. The connection is located above the bottom of the water tank 7. The agricultural products can follow the overflowing water flow into the water filter pipe 11. The other end of the water filter pipe 11 is tilted downward and connected to one end of the dehydration pipe 15. The agricultural products can move downward by their own gravity and finally enter the dehydration pipe 15. A drainage groove 19 is opened on the inner bottom wall of the water filter pipe 11. The drainage groove 19 is connected to the water circulation device through the second drain pipe 17. The first filter screen 13 is installed at the opening edge of the drainage groove 19. The water flow and some residual impurities will pass through the first filter screen 13 and enter the drainage groove 19, and then pass through the second drain pipe 17 to the water circulation device, while the agricultural products cannot pass through the first filter screen 13 and will directly enter the dehydration pipe 15, thereby achieving solid-liquid separation. The axis of the dehydration pipeline 15 is in a vertical state, and the spiral shaft 16 is vertically fixedly installed in the dehydration pipeline 15. The agricultural products will roll down along the spiral pipeline. The sleeve 12 is mounted on the outer wall of the dehydration pipeline 15. The second filter 14 is installed between the sleeve 12 and the dehydration pipeline 15. The second filter 14 restricts the agricultural products from entering the sleeve 12, and the water remaining on the surface of the agricultural products is dehydrated by centrifugal force. The bottom of the sleeve 12 is connected to the water circulation device through the third drain pipe 18. The other end of the dehydration pipeline 15 is located directly above the belt conveyor 5. The agricultural products leaving the spiral shaft 16 will fall onto the belt conveyor 5.

[0030] The bottom of the sleeve 12 is provided with an inclined surface for guiding the water at the bottom of the sleeve 12 to flow to the third drain pipe 18 to prevent the water from flowing back into the dehydration pipe 15. The lead angle of the spiral shaft 16 is 30-45 degrees. The spiral shaft 16 at this angle can make the agricultural products roll quickly to achieve a centrifugal effect. In addition, this angle will not allow the agricultural products to accelerate too fast on the spiral shaft 16, avoiding a large impact force when falling on the belt conveyor 5, causing damage to the agricultural products.

[0031] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A fine sorting device for agricultural products, characterized in that: The invention comprises a hopper (1), a roller conveyor belt (2), a transfer plate (3), a roller grader (4), a dehydration unit, a partition plate (20), a belt conveyor belt (5) and a collection box (6), wherein the roller conveyor belt (2) is installed on the ground and the angle between the roller conveyor belt and the ground is an acute angle, the hopper (1) is installed on the end of the roller conveyor belt (2) close to the ground, the transfer plate (3) is installed on the end of the roller conveyor belt (2) away from the hopper (1), the roller grader (4) is installed on the ground close to the roller conveyor belt (2), and the transfer plate (3) is installed on the end of the roller conveyor belt (2) away from the hopper (1). The plate (3) is used to transfer the material on the roller conveyor belt (2) to the roller grader (4). The roller grader (4) is provided with a water trough (7). The partition (20) divides the water trough (7) into a plurality of areas. The falling material will fall on the water. The dehydration unit is installed on the side wall of the roller grader (4) and is used to dehydrate the material and convey the material to the belt conveyor belt (5). The belt conveyor belt (5) is installed directly below the dehydration unit. The collection box (6) is placed below one end of the belt conveyor belt (5).

2. The agricultural product fine sorting equipment according to claim 1, characterized in that: It also comprises a water circulation device, which is connected to the water tank (7) via a solenoid valve.

3. The agricultural product fine sorting equipment according to claim 2, characterized in that: It also includes a first water spray channel (8) and a second water spray channel (9), wherein the first water spray channel (8) is installed on the roller conveyor belt (2), and the second water spray channel (9) is installed on the roller grader (4); one end of the roller conveyor belt (2) close to the ground is connected to one end of a first drainage pipe (10), and the other end of the first drainage pipe (10) is connected to the water circulation device, and the first water spray channel (8) and the second water spray channel (9) are both connected to the water circulation device.

4. The agricultural product fine sorting equipment according to claim 3, characterized in that: The rollers on the roller conveyor belt (2) are provided with brushes.

5. The agricultural product fine sorting equipment according to claim 3, characterized in that: The side walls of the first water spray channel (8) and the second water spray channel (9) are made of transparent material.

6. The agricultural product fine sorting equipment according to claim 2, characterized in that: The dehydration unit comprises a water filter pipe (11), a sleeve (12), a first filter screen (13), a second filter screen (14), a dehydration pipe (15), a spiral shaft (16), a second drainage pipe (17) and a third drainage pipe (18); one end of the water filter pipe (11) passes through the side wall of the water tank (7) and is connected to the water tank (7); the connection point is located above the bottom of the water tank (7); the other end of the water filter pipe (11) is inclined downward and connected to one end of the dehydration pipe (15); a drainage groove (19) is provided on the inner bottom wall of the water filter pipe (11); the drainage groove (19) is connected to the water tank (7) through the second drainage pipe (18); The pipe (17) is connected to the water circulation device, the first filter screen (13) is installed at the opening edge of the drainage groove (19), the axis of the dehydration pipeline (15) is in a vertical state, the spiral shaft (16) is vertically fixedly installed in the dehydration pipeline (15), the sleeve (12) is sleeved on the outer wall of the dehydration pipeline (15), the second filter screen (14) is installed between the sleeve (12) and the dehydration pipeline (15), the bottom of the sleeve (12) is connected to the water circulation device through the third drainage pipe (18), and the other end of the dehydration pipeline (15) is located directly above the belt conveyor (5).

7. The agricultural product fine sorting equipment according to claim 6, characterized in that: The bottom of the sleeve (12) is provided with an inclined surface to prevent water from flowing back into the dehydration pipeline (15).

8. The agricultural product fine sorting equipment according to claim 6, characterized in that: The lead angle of the spiral shaft (16) is 30-45 degrees.

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