A material conveying mechanism of blank recycling type

Abstract

The application discloses a material conveying mechanism with a material falling recycling function and belongs to the technical field of conveyors. The material conveying mechanism comprises a conveyor body for conveying grain, a material falling collecting box is arranged at the bottom of the conveyor body through bolts, a material guide inclined plate is fixed in the material falling collecting box, a feeding pipe is arranged at the end of the material falling collecting box which is inclined downward towards the material guide inclined plate, the feeding pipe is connected with a spiral conveying auger, and a discharging port is fixed to the upper end of the spiral conveying auger and faces one side of the conveyor body. The material conveying mechanism with the material falling recycling function is characterized in that the material falling collecting box is arranged at the bottom of the conveyor, and an airflow auxiliary pushing structure is additionally arranged in the material falling collecting box. The falling speed of the grain along the inclined surface is improved by utilizing the airflow effect, and the recycling efficiency of the grain is improved. The airflow intensity of the airflow auxiliary pushing structure can be adjusted according to the dryness and humidity of the grain, so that the conveyor is more energy-saving and environment-friendly during operation.

Description

Technical Field

[0001] This invention relates to the field of conveyor technology, specifically to a material conveying mechanism for material recovery. Background Technology

[0002] In grain processing, to facilitate the storage or packaging of grain, corresponding conveying mechanisms are usually used to automatically transport the grain. When the conveyor is transporting the grain, some grain may fall down due to the vibration of the conveyor or through gaps. In order to avoid waste, a receiving trough is usually installed at the bottom of the conveyor to collect the fallen grain.

[0003] For example, a bulk material recovery system for a belt conveyor, as disclosed in announcement number CN117550327B, includes a V-shaped belt conveyor, a material collection device, a material transfer device, a material collection bucket conveying device, and a material collection bucket lifting and tilting device. The material collection device is installed at the lower end of the V-shaped belt conveyor to collect materials scattered during transportation and distribute them into the material collection bucket. The material collection bucket lifting and tilting device is installed on the right side of the material collection bucket conveying device to recover the collected bulk materials onto the conveyor belt of the V-shaped belt conveyor.

[0004] The existing technology has the following technical problems: When the existing conveyor recycles the fallen material, it adds a material collection device to the bottom of the conveyor. However, the material collection device can only guide the fallen material through the inclined surface. For grain conveyors, the adhesion between the relatively wet grain and the inclined surface is greater, while the adhesion between the relatively dry grain and the inclined surface is smaller. Therefore, it is not convenient to speed up the grain recycling rate when recycling the scattered grain.

[0005] Therefore, we propose a material conveying mechanism for material discharge and recovery to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a material conveying mechanism for recovering fallen materials, in order to solve the problem mentioned in the background art that existing conveyors on the market, when recovering fallen materials, use a material collection device installed at the bottom of the conveyor. However, the material collection device can only guide the fallen materials through an inclined plane. For grain conveyors, the adhesion between moist grain and the inclined plane is greater, while the adhesion between dry grain and the inclined plane is smaller. This makes it difficult to speed up the recovery rate of scattered grain.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a material conveying mechanism for recovering fallen grain, comprising a conveyor body for conveying grain, a falling grain collection box being bolted to the bottom of the conveyor body, and a guide plate being fixed inside the falling grain collection box, a feed pipe being installed at one end of the falling grain collection box facing downwards towards the guide plate, and the feed pipe being connected to a screw conveyor auger, a discharge port being fixed at the upper end of the screw conveyor auger facing the conveyor body, a separating plate being installed on the inner side of the falling grain collection box, and an airflow-assisted pushing structure being installed on the guide plate, the airflow-assisted pushing structure being used to accelerate the downward speed of the grain on the guide plate and improve the collection efficiency of the fallen grain.

[0008] Preferably, a drive cylinder is installed below the conveyor body, and a connecting frame is connected to the telescopic end of the drive cylinder. A cleaning brush plate is installed at the upper end of the connecting frame, and the cleaning brush plate has bristles on the side facing the belt on the conveyor body.

[0009] By adopting the above technical solution, the connecting frame at the telescopic end can be moved vertically by opening the drive cylinder, thereby adjusting the contact pressure between the brush bristles and the belt on the conveyor body according to the dryness and moisture of the grain.

[0010] Preferably, a servo motor is installed on the side of the material collection box, and a transmission gear is installed on the output end of the servo motor. A movable toothed plate is provided above the transmission gear, and a movable base plate is fixed at the upper end of the movable toothed plate. The movable toothed plate is connected to the guide plate by a spring. An extension block is installed on the side of the movable base plate facing the center of the guide plate, and an air outlet is provided on the extension block. The movable base plate is connected to an external air pump through an air supply pipe, and an on / off valve is installed on the air supply pipe.

[0011] By adopting the above technical solution, the spring can be used to enable the moving toothed plate to return to its original position after moving on the guide plate.

[0012] Preferably, the circumferential tooth blocks of the transmission gear occupy one-third of the circumferential direction, and the movable toothed plate meshing with the transmission gear above can slide on the guide plate.

[0013] By adopting the above technical solution and through the half-gear structure of the transmission gear, it can cooperate with the spring during rotation, so that the moving toothed plate can reciprocate on the guide plate.

[0014] Preferably, multiple extension blocks are evenly distributed on the side of the movable substrate, and the interior of the extension blocks is connected to the interior of the movable substrate. The air jet direction of the air outlet on the extension block is parallel to the inclined surface direction of the guide plate.

[0015] By adopting the above technical solution, when the air outlet on the extension block sprays air outward, the airflow can push the grain on the guide plate downward.

[0016] Preferably, a rubber bladder is installed on the movable base plate, and the rubber bladder is connected to the movable base plate through a drainage tube. An air suction tube is installed on the side of the rubber bladder. Both the drainage tube and the air suction tube are equipped with one-way valves. The one-way valve on the drainage tube can only discharge air and not allow air to enter, while the one-way valve on the air suction tube can only allow air to enter and not discharge.

[0017] By adopting the above technical solution, when the rubber bladder is squeezed by external force, the airflow inside the rubber bladder can enter the interior of the active substrate through the drainage tube.

[0018] Preferably, an adjustment plate is fixed on the connecting frame, and a branch block is fixed on the side of the adjustment plate facing the rubber bladder. In the initial state, the branch block on the adjustment plate is located above the rubber bladder.

[0019] By adopting the above technical solution, when the transported grain is relatively dry, the connecting frame drives the adjusting plate to move downward. At this time, the rubber bladder can be squeezed by the branch blocks on the adjusting plate as it moves with the movable base plate.

[0020] Preferably, the side of the guide plate arches upward to form a protrusion, and a collision rod is provided on the side of the protrusion. The collision rod is installed through the connecting frame and is connected to the connecting frame by an auxiliary spring. A first magnetic block is fixed at the end of the collision rod, and a second magnetic block is provided on the side of the first magnetic block. The second magnetic block is fixed on the movable base plate.

[0021] By adopting the above technical solution, the vibration generated by the impact of the collision rod on the protrusion can reduce the adhesion of wet grain on the guide plate, making it easier for the wet grain to slide down.

[0022] Preferably, the collision rod is in contact with the protrusion in the initial state, and the collision rod can slide on the connecting frame. The magnetic polarities of the opposing surfaces of the first magnetic block at the end of the collision rod and the second magnetic block on the movable substrate are opposite.

[0023] By adopting the above technical solution, when the movable substrate moves, the collision rod can be driven to move on the connecting frame by the magnetic force of the second magnetic block and the first magnetic block approaching each other.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the material conveying mechanism for material recovery, by installing a material collection box at the bottom of the conveyor and adding an airflow-assisted pushing structure inside the material collection box, uses the airflow to increase the falling speed of the grain along the slope, thereby accelerating the recovery efficiency of the grain. The airflow intensity of the airflow-assisted pushing structure can be adjusted according to the dryness and moisture content of the grain, making the conveyor more energy-efficient and environmentally friendly during operation.

[0025] 1. When conveying wet grain, the air pump can provide airflow to accelerate the falling speed of the grain on the guide plate. When conveying dry grain, the intermittent squeezing contact between the rubber bladder and the branch block can provide airflow to make the grain fall faster and improve the efficiency of material recovery.

[0026] 2. By reciprocating the movement of the movable base plate, the distance between the second magnetic block and the first magnetic block at the end of the collision rod changes, enabling the collision rod to reciprocate on the connecting frame. The reciprocating movement of the collision rod can impact the protrusion, and the vibration generated by the impact can accelerate the falling speed of the grain on the guide plate.

[0027] 3. The connecting frame can be raised and lowered by the drive cylinder, thereby adjusting the contact pressure between the cleaning brush and the belt according to the dryness and moisture of the grain. After the connecting frame is raised and lowered, the adjusting plate and the collision rod can also be raised and lowered, thus adjusting the airflow intensity and the impact intensity according to the dryness and moisture of the grain, reducing the overall energy consumption of the device during use. Attached Figure Description

[0028] Figure 1 This is a frontal perspective view of the present invention;

[0029] Figure 2 This is a schematic diagram of the conveyor body and the material collection box structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the material collection box and the material distribution inclined plate of the present invention;

[0031] Figure 4 This is a schematic diagram of the conveyor body and cleaning brush plate structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the movable toothed plate and the movable base plate structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the guide plate and moving toothed plate structure of the present invention;

[0034] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0035] Figure 8This is a schematic diagram of the adjusting plate and branch block structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the collision rod and the first magnetic block structure of the present invention.

[0037] In the diagram: 1. Conveyor body; 2. Material collection box; 3. Guide sloping plate; 4. Feed pipe; 5. Screw conveyor; 6. Discharge port; 7. Dividing sloping plate; 8. Drive cylinder; 9. Connecting frame; 10. Cleaning brush plate; 11. Servo motor; 12. Transmission gear; 13. Moving toothed plate; 14. Movable base plate; 15. Extension block; 16. Air outlet; 17. Rubber bladder; 18. Drainage pipe; 19. Suction pipe; 20. Adjusting plate; 21. Branch block; 22. Protrusion; 23. Collision rod; 24. First magnetic block; 25. Auxiliary spring; 26. Second magnetic block; 27. Air delivery pipe. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-9Existing conveyors recover fallen materials by adding a material collection device to the bottom of the conveyor. However, this device can only guide the fallen material through an inclined plane. For grain conveyors, wetter grain has a greater adhesion to the inclined plane, while drier grain has a smaller adhesion. This makes it difficult to accelerate the recovery rate of scattered grain. To solve this technical problem, this embodiment discloses the following technical content: a material conveying mechanism for recovering fallen materials, including a conveyor body 1 for transporting grain, a material collection box 2 bolted to the bottom of the conveyor body 1, and a guide inclined plate 3 fixed inside the material collection box 2. The inside of the material collection box 2 faces the guide inclined plate. A feed pipe 4 is installed at the downward-sloping end of the inclined plate 3, and the feed pipe 4 is connected to the screw conveyor 5. A discharge port 6 is fixed at the upper end of the screw conveyor 5 facing the side of the conveyor body 1. A distribution inclined plate 7 is installed on the inner side of the material collection box 2. An airflow-assisted pushing structure is installed on the guide inclined plate 3. The airflow-assisted pushing structure is used to accelerate the downward speed of the grain on the guide inclined plate 3 and improve the collection efficiency of scattered grain. A drive cylinder 8 is installed below the conveyor body 1, and a connecting frame 9 is connected to the telescopic end of the drive cylinder 8. A cleaning brush plate 10 is installed at the upper end of the connecting frame 9, and the cleaning brush plate 10 has bristles on the side facing the belt on the conveyor body 1. A servo motor is installed on the side of the material collection box 2. 11, and a transmission gear 12 is installed on the output end of the servo motor 11. A movable toothed plate 13 is provided above the transmission gear 12, and a movable base plate 14 is fixed to the upper end of the movable toothed plate 13. The movable toothed plate 13 is connected to the guide plate 3 by a spring. An extension block 15 is installed on the side of the movable base plate 14 facing the center of the guide plate 3, and an air outlet 16 is opened on the extension block 15. The movable base plate 14 is connected to an external air pump through an air supply pipe 27. An on / off valve is installed on the air supply pipe 27. The circumferential teeth of the transmission gear 12 occupy one-third of the circumference, and the movable toothed plate 13 meshing with the transmission gear 12 can slide on the guide plate 3. Multiple extension blocks 1 are evenly distributed on the side of the movable base plate 14. 5. The interior of the extension block 15 and the interior of the movable base plate 14 are interconnected. The air outlet 16 on the extension block 15 sprays air in a direction parallel to the inclined surface of the guide plate 3. A rubber bladder 17 is installed on the movable base plate 14, and the rubber bladder 17 is connected to the movable base plate 14 through a drainage pipe 18. An air suction pipe 19 is installed on the side of the rubber bladder 17. One-way valves are installed on both the drainage pipe 18 and the air suction pipe 19. The one-way valve on the drainage pipe 18 can only discharge air and not allow air to enter. The one-way valve on the air suction pipe 19 can only allow air to enter and not discharge air. An adjustment plate 20 is fixed on the connecting frame 9, and a branch block 21 is fixed on the side of the adjustment plate 20 facing the rubber bladder 17. In the initial state, the branch block 21 on the adjustment plate 20 is located above the rubber bladder 17.

[0040] Grains can be divided into moist grains and dry grains:

[0041] When the conveyor body 1 conveys damp grain, the air supply pipe 27 is connected to an external air pump. The scattered grain falls onto the guide plate 3 in the material collection box 2. Guided by the guide plate 3, the grain passes through the feed pipe 4 and enters the screw conveyor 5. The screw conveyor 5 then transfers the scattered grain back to the conveyor body 1 through the discharge port 6. Because there is wet contact between the damp grain and the guide plate 3, the damp grain is less likely to slide down the guide plate 3. The on / off valve on the air supply pipe 27 is opened, and air is supplied to the air supply pipe 27 using the air pump. The airflow in the air supply pipe 27 enters the movable base plate 14 and passes through the extension block 15. The air outlet 16 sprays outwards, and the airflow sprayed downwards from the air outlet 16 can blow the wet grain attached to the guide plate 3 downwards, providing a downward thrust to the grain attached to the guide plate 3. At the same time, the cleaning brush plate 10 on the connecting frame 9 is in contact with the belt on the conveyor body 1. The cleaning brush plate 10 can sweep off and clean the grain attached to the conveyor body 1. At the same time, the servo motor 11 can be turned on. The turning on of the servo motor 11 can use the transmission gear 12 to make the meshing moving tooth plate 13 drive the movable base plate 14 to reciprocate along the guide plate 3. The reciprocating movement of the movable base plate 14 can increase the spray range of the air outlet 16 on the extension block 15.

[0042] When the conveyor body 1 conveys dry grain, the on / off valves on the air supply pipe 27 are closed. Because the grain is relatively dry, there is dry contact between the grain, the guide plate 3, and the belt, so the adhesion of the grain is small. The connecting frame 9 and the cleaning brush plate 10 are moved downward by the drive cylinder 8 to reduce the contact pressure between the cleaning brush plate 10 and the belt. After the connecting frame 9 moves downward, it can drive the adjusting plate 20 to move downward synchronously. After the adjusting plate 20 moves downward, it can move the side branch block 21 to the side of the rubber bladder 17. At this time, when the movement... When the base plate 14 reciprocates, the rubber bladder 17 on the movable base plate 14 can intermittently squeeze and contact the branch block 21 on the side of the adjustment plate 20. After the rubber bladder 17 is compressed, the airflow inside enters the interior of the movable base plate 14 through the guide pipe 18 and is ejected outward through the air outlet 16 on the extension block 15. At this time, when the dried grain is recovered, the airflow can be generated by squeezing the rubber bladder 17, thereby accelerating the downward speed of the dried grain along the guide plate 3, avoiding the need for a continuous air pump function, and reducing the overall energy consumption of the device during use.

[0043] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. In order to further increase the sliding speed of wet grain along the guide plate 3, the following technical content is disclosed in this example: Figure 5 , Figure 8 and Figure 9 As shown, the side of the guide plate 3 arches upward to form a protrusion 22, and a collision rod 23 is provided on the side of the protrusion 22. The collision rod 23 is installed through the connecting frame 9, and the collision rod 23 is connected to the connecting frame 9 through an auxiliary spring 25. A first magnetic block 24 is fixed to the end of the collision rod 23, and a second magnetic block 26 is provided on the side of the first magnetic block 24. The second magnetic block 26 is fixed on the movable base plate 14. In the initial state, the collision rod 23 is in contact with the protrusion 22, and the collision rod 23 can slide on the connecting frame 9. The magnetic polarities of the opposing surfaces of the first magnetic block 24 at the end of the collision rod 23 and the second magnetic block 26 on the movable base plate 14 are opposite.

[0044] When the conveyor transports damp grain, the rotation of the transmission gear 12 causes the moving toothed plate 13 to drive the movable base plate 14 to reciprocate. After the movable base plate 14 moves, the second magnetic block 26 on it and the first magnetic block 24 at the end of the collision rod 23 approach each other. The magnetic attraction of the second magnetic block 26 to the first magnetic block 24 causes the collision rod 23 to move away from the protrusion 22. When the movable base plate 14 returns to its original position, the second magnetic block 26 and the first magnetic block 24 at the end of the collision rod 23 move away from each other, and the collision rod 23 returns to its original position under the action of the auxiliary spring 25. This achieves the reciprocating movement of the collision rod 23. Since the protrusion 22 and the guide plate 3 are integrally formed, the reciprocating movement of the collision rod 23 effectively moves the protrusion... The impact of part 22 causes the guide plate 3 to vibrate. The vibration of the guide plate 3 accelerates the downward speed of the wet grain on the guide plate 3. When the conveyor transports dry grain, the dry grain and the guide plate 3 are in dry contact with each other, and the adhesion between them is small. The connecting frame 9 is moved downward by the drive cylinder 8. After the connecting frame 9 moves downward, the collision rod 23 also moves downward synchronously. At this time, the collision rod 23 and the protrusion 22 are misaligned. After that, when the movable base plate 14 moves, the collision rod 23 will not be moved back and forth by magnetic force. Thus, the vibration is selected according to the different dryness of the grain, avoiding the collision rod 23 from moving back and forth when vibration is not needed, and improving the service life of the internal structure.

[0045] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A material conveying mechanism for recovering fallen grain, comprising a conveyor body (1) for conveying grain, characterized in that: The bottom of the conveyor body (1) is bolted with a material collection box (2), and a guide plate (3) is fixed inside the material collection box (2). A feed pipe (4) is installed at the end of the material collection box (2) that is inclined downward towards the guide plate (3), and the feed pipe (4) is connected to the screw conveyor (5). A discharge port (6) is fixed at the upper end of the screw conveyor (5) facing the conveyor body (1). A material distribution plate (7) is installed on the inner side of the material collection box (2). An airflow-assisted pushing structure is installed on the guide plate (3). The airflow-assisted pushing structure is used to accelerate the downward speed of the grain on the guide plate (3) and improve the collection efficiency of scattered grain. A servo motor (11) is installed on the side of the material collection box (2), and a transmission gear (12) is installed on the output end of the servo motor (11). A movable toothed plate (13) is provided above the transmission gear (12), and a movable base plate (14) is fixed on the upper end of the movable toothed plate (13). The movable toothed plate (13) is connected to the guide plate (3) by a spring. An extension block (15) is installed on the side of the movable base plate (14) facing the center direction of the guide plate (3), and an air outlet (16) is opened on the extension block (15). The movable base plate (14) is connected to an external air pump through an air supply pipe (27), and an on / off valve is installed on the air supply pipe (27). A rubber bladder (17) is installed on the movable base plate (14), and the rubber bladder (17) is connected to the movable base plate (14) through a drainage tube (18). An air suction tube (19) is installed on the side of the rubber bladder (17). A one-way valve is installed on both the drainage tube (18) and the air suction tube (19). The one-way valve on the drainage tube (18) can only release air and cannot release air, and the one-way valve on the air suction tube (19) can only draw in air and cannot release air. A drive cylinder (8) is installed below the conveyor body (1), and a connecting frame (9) is connected to the telescopic end of the drive cylinder (8). An adjusting plate (20) is fixed on the connecting frame (9), and a branch block (21) is fixed on the side of the adjusting plate (20) facing the rubber bladder (17). In the initial state, the branch block (21) on the adjusting plate (20) is located above the rubber bladder (17).

2. The material conveying mechanism for material discharge and recovery according to claim 1, characterized in that: The upper end of the connecting frame (9) is equipped with a cleaning brush plate (10), and the cleaning brush plate (10) has bristles on the side facing the belt on the conveyor body (1).

3. The material conveying mechanism for material discharge and recovery according to claim 1, characterized in that: The circumferential teeth of the transmission gear (12) occupy one-third of the circumferential direction, and the movable tooth plate (13) meshing with the transmission gear (12) above can slide on the guide plate (3).

4. The material conveying mechanism for material discharge and recovery according to claim 1, characterized in that: The active substrate (14) has multiple extension blocks (15) evenly distributed on its side, and the interior of the extension blocks (15) and the interior of the active substrate (14) are interconnected. The air outlet (16) on the extension block (15) sprays air in a direction parallel to the inclined surface of the guide plate (3).

5. The material conveying mechanism for material discharge and recovery according to claim 1, characterized in that: The side of the guide plate (3) arches upward to form a protrusion (22), and a collision rod (23) is provided on the side of the protrusion (22). The collision rod (23) is installed through the connecting frame (9), and the collision rod (23) is connected to the connecting frame (9) through an auxiliary spring (25). A first magnetic block (24) is fixed at the end of the collision rod (23), and a second magnetic block (26) is provided on the side of the first magnetic block (24). The second magnetic block (26) is fixed on the movable base plate (14).

6. The material conveying mechanism for material recovery according to claim 5, characterized in that: The collision rod (23) is in contact with the protrusion (22) in the initial state, and the collision rod (23) can slide on the connecting frame (9). The magnetic polarities of the opposing surfaces of the first magnetic block (24) at the end of the collision rod (23) and the second magnetic block (26) on the movable base plate (14) are opposite.

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