Rice drying device with automatic feeding function

Abstract

The invention discloses an automatic feeding rice drying device which comprises a drying tower, the drying tower is formed by fixing two groups of hot air chambers, a preheating layer, a tempering layer and two groups of side baffles, the two groups of side baffles are fixed on the two sides of the hot air chambers respectively, and the two groups of hot air chambers are distributed oppositely; the preheating layer and the tempering layer are fixed to the upper side and the lower side of the hot air chamber correspondingly, and a feeding conveying belt is arranged at the top of the preheating layer; two groups of grain guide plates are arranged on the inner side of the preheating layer, the two groups of grain guide plates oppositely move on the inner side of the preheating layer through a material uniformizing mechanism, the material uniformizing mechanism is arranged on the surface of the outer side of the preheating layer, and the material uniformizing mechanism drives the grain guide plates to move on the inner side of the preheating layer and drives the grain guide plates to conduct angle overturning at the same time; five sets of pushing plates are arranged on the upper portion of the inner side of the tempering layer, the effect that rice is normally laid and fed on the tower top preheating layer can be effectively achieved, and the situation that the rice is blocked in the tempering layer can be effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of rice drying, and in particular to an automatic loading rice drying device. Background Art

[0002] Newly harvested rice contains a high amount of moisture. If it is not dried in time, it is easy to cause mold growth, affecting the quality and food safety of the rice. The most common rice drying tower in the prior art can achieve continuous drying operation and is suitable for large-scale rice drying and storage. However, rice is different from other grains. As a heat-sensitive crop, the drying speed, drying time or drying temperature will affect the quality of the finished rice.

[0003] The drying tower in the prior art generally realizes the rice loading operation at the top, and the loading position is fixed during the loading and drying process, resulting in the rice being ridged in the preheating layer at the top of the tower, making the height difference between the rice on both sides and the rice in the middle too large, affecting the preheating of the rice and the effect of the rice falling naturally in the tower. In addition, compared with other grains, the particle diameter of rice is small, and the effect of the traditional drying tower assisting the rice to fall naturally in the tower is achieved by gas flow, which has a poor effect. When the tower body is high and the weight of the rice is too large, the rice is easily blocked in the slow-heating layer, thereby affecting the normal drying operation of the rice.

[0004] Therefore, how to provide a rice drying device with automatic loading is a problem that those skilled in the art need to solve urgently. Summary of the invention

[0005] One object of the present invention is to provide a rice drying device with automatic loading, which can effectively achieve the effect of normal flat loading of rice on the preheating layer at the top of the tower, and can effectively prevent the rice from being blocked in the slow-heating layer.

[0006] An automatic rice drying device according to an embodiment of the present invention comprises a drying tower, wherein the drying tower comprises two groups of hot air chambers, a preheating layer, a slow-release layer and two groups of side baffles, the two groups of side baffles are respectively fixed on both sides of the hot air chambers, and the two groups of hot air chambers are oppositely distributed, the preheating layer and the slow-release layer are respectively fixed on the upper and lower sides of the hot air chambers, and a feeding conveyor belt is arranged on the top of the preheating layer;

[0007] Two groups of grain guide plates are arranged inside the preheating layer, and the two groups of grain guide plates move toward each other inside the preheating layer through a material leveling mechanism, and the material leveling mechanism is arranged on the outer surface of the preheating layer, and the material leveling mechanism drives the grain guide plates to move inside the preheating layer and drives the grain guide plates to flip at an angle;

[0008] Five groups of pushing plates are arranged on the inner side of the slow-release layer, and the pushing plates are moved laterally on the inner side of the slow-release layer by a pulling mechanism. The side of the pushing plates is fixedly connected to a coupling bolt, and the coupling bolt is fixed to a pulling frame by a bolt, and the pulling frame slides on the outer surface of the slow-release layer;

[0009] A low-speed motor is fixed on the outside of the hot air chamber, a rotating disk is fixed on the output shaft of the low-speed motor, and the rotation of the rotating disk drives the slide to move up and down inside the hot air chamber, and the upper and lower sides of the slide are respectively fixedly connected to the material leveling mechanism and the pulling mechanism through connecting rods.

[0010] Furthermore, a reciprocating transmission mechanism is arranged on the surface of the hot air chamber, and the reciprocating transmission mechanism includes a low-speed motor and a rotating disk. A convex pin is fixedly arranged on the surface of the rotating disk close to the slide, and the convex pin is located at the position of the maximum circular diameter of the surface of the rotating disk. The convex pin is slidably arranged inside the slide, and the slide is limited and slid inside the hot air chamber by a slider. The rotation of the rotating disk drives the slide to reciprocate up and down.

[0011] Furthermore, the material leveling mechanism includes two groups of push-pull rods and a driving assembly. The push-pull rods are movably connected to a movable shaft through a shaft sleeve above, one end of the movable shaft is fixedly connected to the side of the grain guide plate, and the two groups of push-pull rods are movably connected to each other through side plates below, and the side plates are fixed to the top of the connecting rod.

[0012] Furthermore, a limiting slide groove is provided near the movable shaft in the preheating layer, and the push-pull rod pulls the movable shaft to slide laterally in the limiting slide groove, and the movable shaft drives the grain guide plate to move laterally inside the preheating layer.

[0013] Furthermore, the driving assembly also includes a frame and two groups of side convex plates, which are respectively fixed at the middle positions of the upper and lower sides of the frame, and sliding rods are fixed on both sides of the side convex plates. Springs are sleeved on the surfaces of the sliding rods, and a limiting sliding sleeve is fixed at a position of the preheating layer close to the sliding rod. The frame slides laterally on the outer surface of the preheating layer through the sliding rod, and the side convex plates are elastically connected to the limiting sliding sleeves through springs.

[0014] Furthermore, a meshing groove is opened on the upper inner side of the frame, and a fixed tooth is fixedly provided at a position of the movable shaft near the meshing groove, and the fixed tooth and the meshing groove are meshed with each other. An annular outer protrusion is fixed on one side of the fixed tooth, and the annular outer protrusion and the side wall of the frame are located in the same plane.

[0015] Furthermore, a discharge port is opened at the bottom of the slow-heating layer, and a triangular air duct is arranged on one side of the hot air chamber. The triangular air duct is connected to the hot air chamber, and the hot air chamber is respectively connected to an external heat source and a heat recovery component through an air pipe.

[0016] Furthermore, a movable groove is opened near the coupling bolt in the buffer layer, and the pulling frame drives the coupling bolt to move left and right in the movable groove. A grain-blocking slide is slidingly provided on the inner surface of the buffer layer near the movable groove, and the coupling bolt movably penetrates the grain-blocking slide and is fixed to the pushing plate.

[0017] Furthermore, an engaging groove is provided below the middle position of the pulling frame, and a single tooth is movably connected to the position of the slow-release layer near the engaging groove through a shaft rod, and the single tooth is engaged with the engaging groove.

[0018] Furthermore, the position of the single tooth away from the engaging groove is also engaged with the tooth groove below the L-engaging plate, and the L-engaging plate is fixed to the connecting rod below the slide.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a material leveling mechanism, and two groups of grain guide plates located on the inner side of the preheating layer are affected by the pull of the push-pull rod to move to opposite positions along the limiting slide groove, and during the movement of the grain guide plates, the meshing effect of the fixed teeth and the meshing groove can drive the grain guide plates to rotate at a small angle, so that when the two groups of grain guide plates are aligned with each other, the rice can be effectively guided to the two sides, and vice versa, after being separated, the rice can be assisted in converging and guiding to the middle position of the preheating layer, effectively preventing the rice from ridged in the preheating layer.

[0021] The present invention provides a pulling mechanism. After the rice passes through the drying operation of the hot air chamber, the pushing plate on the inner side of the slow-drying layer below the rice can be driven by the pulling frame to move horizontally. The pushing plate pushes the rice to destroy the pressure balance effect of the rice on the inner side of the slow-drying layer, so that the rice can effectively fall naturally and prevent the rice from being blocked on the inner side of the slow-drying layer.

[0022] The present invention is provided with a low-speed motor, which can drive the slide to move back and forth up and down inside the hot air chamber after being driven. The push-pull rod and the L-meshing plate are connected by a connecting rod. On the one hand, it can drive the grain guide plate to realize the material guiding operation, and on the other hand, it can realize the pushing operation of the pushing plate on the rice. The low-speed motor has strong continuity and is suitable for the synchronous loading and drying operations of large quantities of rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of an automatic loading rice drying device proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the disassembled structure of a drying tower of an automatic loading rice drying device proposed by the present invention.

[0026] Figure 3 This is a diagram showing the inner structure of a drying tower of an automatic loading rice drying device proposed by the present invention.

[0027] Figure 4 This is a schematic diagram of the connection of the reciprocating transmission mechanism of the automatic loading rice drying device proposed by the present invention.

[0028] Figure 5 This is a disassembled schematic diagram of the reciprocating transmission mechanism of an automatic loading rice drying device proposed by the present invention.

[0029] Figure 6 This is a schematic diagram of the connection of the pulling mechanism of the automatic loading rice drying device proposed by the present invention.

[0030] Figure 7 This is a schematic diagram of the connection of the material mixing mechanism of the automatic loading rice drying device proposed by the present invention.

[0031] Figure 8 This is a schematic diagram of the surface of a drying tower of an automatic loading rice drying device proposed by the present invention.

[0032] Fig. 9 The present invention proposes an automatic loading rice drying device Figure 7 A magnified schematic diagram of the structure at point A.

[0033] In the figure: 1. Drying tower; 2. Feed conveyor belt; 3. Reciprocating transmission mechanism; 4. Material leveling mechanism; 5. Pulling mechanism; 6. Food guide plate; 7. Pushing plate;

[0034] 11. Hot air chamber; 12. Preheating layer; 13. Slow-heating layer; 14. Discharge port; 15. Side baffle; 16. Triangular airway; 31. Low-speed motor; 32. Rotating plate; 33. Lug; 34. Slide; 35. Connecting rod; 41. Push-pull rod; 42. Active shaft; 43. Driving assembly; 44. Meshing groove; 45. Fixed tooth; 46. Annular outer protrusion; 47. Limiting slide; 51. Pulling frame; 52. Engaging groove; 53. Single tooth; 54. L-meshing plate; 55. Coupling bolt; 56. Grain-blocking slide; 57. Active groove;

[0035] 431, frame; 432, side convex plate; 433, spring; 434, slide rod. DETAILED DESCRIPTION

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0037] refer to Figure 1-Figure 9, including a drying tower 1, the drying tower 1 includes two groups of hot air chambers 11, a preheating layer 12, a slow-release layer 13 and two groups of side baffles 15 fixedly formed, the two groups of side baffles 15 are respectively fixed on both sides of the hot air chamber 11, the two groups of hot air chambers 11 are oppositely distributed, the preheating layer 12 and the slow-release layer 13 are respectively fixed on the upper and lower sides of the hot air chamber 11, and a feed conveyor belt 2 is arranged on the top of the preheating layer 12;

[0038] Two groups of food guide plates 6 are arranged inside the preheating layer 12. The two groups of food guide plates 6 move in opposite directions inside the preheating layer 12 through the material leveling mechanism 4. The material leveling mechanism 4 is arranged on the outer surface of the preheating layer 12. The material leveling mechanism 4 drives the food guide plates 6 to move inside the preheating layer 12 and drives the food guide plates 6 to flip at an angle.

[0039] Five groups of pushing plates 7 are arranged on the inner side of the slow-resistance layer 13. The pushing plates 7 are moved laterally on the inner side of the slow-resistance layer 13 by the pulling mechanism 5. The side of the pushing plates 7 is fixedly connected to the coupling bolt 55. The coupling bolt 55 is fixed to the pulling frame 51 by bolts. The pulling frame 51 slides on the outer surface of the slow-resistance layer 13.

[0040] The low-speed motor 31 is fixed on the outside of the hot air chamber 11. The output shaft of the low-speed motor 31 is fixed with a rotating disk 32. The rotating disk 32 rotates to drive the slide 34 to move up and down inside the hot air chamber 11. The upper and lower sides of the slide 34 are fixedly connected to the material leveling mechanism 4 and the pulling mechanism 5 through connecting rods 35 respectively.

[0041] In this embodiment, the hot air chamber 11, the preheating layer 12 and the slow thawing layer 13 constitute the whole of the drying tower 1. After the rice is transported to the top of the preheating layer 12 by the feeding conveyor belt 2, it is first preheated in the preheating layer 12, and then enters the inner side of the hot air chamber 11 for drying under the action of the rice's own gravity, and finally enters the slow thawing layer 13 for slow thawing, thereby completing the whole set of drying operations;

[0042] Since two groups of grain guide plates 6 are arranged in the preheating layer 12, the grain guide plates 6 can change the actual swing angle while moving laterally inside the preheating layer 12 through the material leveling mechanism 4. In this way, when the two groups of grain guide plates 6 are connected, the rice entering the inner side of the preheating layer 12 from the feeding conveyor belt 2 will be guided to both sides by the grain guide plates 6. Finally, after a certain period of time, the grain guide plates 6 are pulled apart again. At this time, the grain guide plates 6 themselves rotate, and the openings formed by the two groups of grain guide plates 6 are downward, so that the rice can gather at the middle position inside the preheating layer 12. The reciprocating movement of the grain guide plates 6 can effectively realize the material leveling operation, prevent the rice inside the preheating layer 12 from ridged, and effectively improve the preheating uniformity.

[0043] After being dried and heated in the hot air chamber 11, the rice falls to the inner side of the slow-release layer 13. During this process, the rice first passes through the pushing plate 7. Since the pushing plate 7 is connected to the pulling frame 51 through the coupling bolt 55, when the pulling frame 51 moves laterally on the outer surface of the slow-release layer 13, a lateral force is provided to the pushing plate 7 on the inner side of the slow-release layer 13 to squeeze the rice and destroy the balance of the rice at that place. In addition, the pushing plate 7 is driven by the reciprocating left and right movement of the pulling frame 51, and can continuously provide a squeezing effect, so that the rice falls more smoothly.

[0044] After being driven, the low-speed motor 31 can drive the slide 34 to move up and down reciprocatingly inside the hot air chamber 11, so that the food guide plate 6 and the pushing plate 7 are respectively controlled to perform corresponding operations, thereby improving the overall automation level of the device and improving the effect of continuous production.

[0045] refer to Figure 4 and Figure 5 A reciprocating transmission mechanism 3 is arranged on the surface of the hot air chamber 11. The reciprocating transmission mechanism 3 includes a low-speed motor 31 and a rotating disk 32. A convex pin 33 is fixedly arranged on the surface of the rotating disk 32 close to the slide 34. The convex pin 33 is located at the position of the maximum circular diameter on the surface of the rotating disk 32. The convex pin 33 is slidably arranged inside the slide 34. The slide 34 slides on the inner side of the hot air chamber 11 through the slider limit. The rotating disk 32 rotates to drive the slide 34 to reciprocate up and down.

[0046] In this embodiment, when the low-speed motor 31 drives the rotating disk 32 to rotate, the protruding pin 33 will synchronously rotate on the inside of the slide 34, so that the slide 34 is pulled to reciprocate up and down on the inside of the hot air chamber 11, and the upper and lower sides of the slide 34 are respectively connected to the material leveling mechanism 4 and the pulling mechanism 5 through the connecting rod 35, so that the driving effect of the material leveling mechanism 4 and the pulling mechanism 5 is provided at the same time.

[0047] refer to Figure 2 , Figure 4 , Figure 7 and Figure 8 The material leveling mechanism 4 includes two sets of push-pull rods 41 and a driving assembly 43. The push-pull rods 41 are movably connected to a movable shaft 42 through a shaft sleeve. One end of the movable shaft 42 is fixedly connected to the side of the grain guide plate 6. The two sets of push-pull rods 41 are movably connected to each other through a side plate below, and the side plate is fixed to the top of the connecting rod 35. A limited sliding groove 47 is provided near the movable shaft 42 of the preheating layer 12. The push-pull rod 41 pulls the movable shaft 42 to slide horizontally in the limited sliding groove 47, and the movable shaft 42 drives the grain guide plate 6 to move horizontally inside the preheating layer 12.

[0048] In this embodiment, the two groups of push-pull rods 41 are connected to the connecting rod 35 through the side plates at the bottom. When the connecting rod 35 descends, the two groups of push-pull rods 41 can be pulled to swing. The push-pull rods 41 are connected to the grain guide plate 6 through the movable shaft 42 at the top. During the swinging process of pulling the push-pull rods 41, the movable shaft 42 is limited and slides in the limited slide groove 47, so that the two groups of grain guide plates 6 can be effectively pulled close to each other until the grain guide plates 6 are fitted together to form a convex angle shape. In this way, the rice will slide to both sides after falling onto the surface of the grain guide plate 6, thereby changing the convergence position of the rice inside the preheating layer 12. On the contrary, when the two groups of push-pull rods 41 are unfolded, the grain guide plate 6 will move to both sides. At this time, the rice can be normally gathered in the middle position inside the preheating layer 12. This reciprocating process can control the landing point of the rice and prevent the rice from ridged inside the preheating layer 12, which affects the preheating effect and the gravity falling effect.

[0049] The above-mentioned gravity falling effect means that after the rice is ridged on the inner side of the preheating layer 12, the gravity on both sides is less than the gravity at the middle ridged position, resulting in that during the falling process, the rice in the middle position falls faster inside the hot air chamber 11, the drying time is short, and the drying effect is poor, while the rice on both sides has less pressure and falls slowly, resulting in a long drying time, and the rice bursts due to over-drying. More specifically, a baffle may be provided between the inner surface of the preheating layer 12 and the grain guide plate 6 to prevent the rice from leaking out from the position of the limiting slide 47.

[0050] refer to Figure 7 and Fig. 9 The driving assembly 43 also includes a frame 431 and two sets of side convex plates 432. The two sets of side convex plates 432 are respectively fixedly arranged at the middle positions of the upper and lower sides of the frame 431. Slide rods 434 are fixed on both sides of the side convex plates 432. The surface of the slide rods 434 is sleeved with springs 433. The position of the preheating layer 12 near the slide rods 434 is fixed with a limited sliding sleeve. The frame 431 slides laterally on the outer surface of the preheating layer 12 through the slide rods 434, and the side convex plates 432 are elastically connected to the limited sliding sleeve through the springs 433. A meshing groove 44 is opened on the upper inner side of the frame 431. A fixed tooth 45 is fixedly arranged at a position of the movable shaft 42 near the meshing groove 44. The fixed tooth 45 meshes with the meshing groove 44. An annular outer protrusion 46 is fixed on one side of the fixed tooth 45. The annular outer protrusion 46 and the side wall of the frame 431 are located in the same plane.

[0051] In this embodiment, when the push-pull rod 41 drives the movable shaft 42 to slide laterally inside the limiting slide groove 47, the fixed teeth 45 are fixed on the surface of the movable shaft 42, so that the fixed teeth 45 move inside the frame 431, and the meshing groove 44 is provided on the upper inner side of the frame 431, so that the fixed teeth 45 can drive the movable shaft 42 and the grain guide plate 6 to flip during the movement, change the actual horizontal angle of the grain guide plate 6, and thus better guide the rice.

[0052] More specifically, for example, when the push-pull rod 41 is unfolded to drive the food guide plate 6 to move to both sides, since the side convex plate 432 is fixed on the top of the frame frame 431, the frame frame 431 slides on the outer surface of the preheating layer 12 through the side convex plate 432 and the sliding rod 434, making it more stable, and a spring 433 is provided between the side convex plate 432 and the limiting sliding sleeve on the side of the preheating layer 12. Therefore, when the movable shaft 42 drives the fixed tooth 45 to move, the fixed tooth 45 and the meshing groove 44 will not be engaged and rotated. The frame frame 431 first needs to overcome the elastic force of the spring 433 and move a certain distance on the surface of the preheating layer 12. This effect can help The grain guide plates 6 are first separated, and then the spring 433 on the other side of the convex plate 432 will come into contact with the limiting sleeve. At this time, the fixed tooth 45 will mesh with the meshing groove 44 and rotate until the annular outer protrusion 46 on one side of the fixed tooth 45 comes into contact with the inner wall of the frame 431. At this time, the grain guide plate 6 completes the angle flip and the movable shaft 42 cannot continue to rotate. The movement of the movable shaft 42 will drive the frame 431 to squeeze the spring 433, so that the grain guide plate 6 fits with both sides of the inner wall of the preheating layer 12. The setting of the driving component 43 can effectively realize the flexibility of the grain guide plate 6, so that the grain guide plate 6 can move and rotate more smoothly on the inner side of the preheating layer 12.

[0053] refer to Figure 2 A discharge port 14 is provided at the bottom of the slow-release layer 13, and a triangular air duct 16 is provided on one side of the hot air chamber 11. The triangular air duct 16 is connected to the hot air chamber 11, and the hot air chamber 11 is respectively connected to an external heat source and a heat recovery component through an air pipe.

[0054] In this embodiment, the discharge port 14 realizes the discharge operation of the rice inside the slow-drying layer 13, and the relative arrangement of the two groups of hot air chambers 11 makes the triangular air channels 16 stacked on each other. The triangular air channels 16 connected to the hot air chambers 11 on one side realize hot air supply, and the triangular air channels 16 connected to the hot air chambers 11 on the other side realize air suction. In this way, hot air flows between the triangular air channels 16 to dry the rice.

[0055] refer to Figure 6 and Figure 8 A movable groove 57 is provided at the position of the slow-release layer 13 near the coupling bolt 55. The pulling frame 51 drives the coupling bolt 55 to move left and right in the movable groove 57. A grain-blocking slide 56 is slidably provided at the position of the inner surface of the slow-release layer 13 near the movable groove 57. The coupling bolt 55 movably penetrates the grain-blocking slide 56 and is fixed to the pushing plate 7. An engaging groove 52 is provided below the middle position of the pulling frame 51. A single tooth 53 is movably connected to the position of the slow-release layer 13 near the engaging groove 52 through a shaft rod. The single tooth 53 is engaged with the engaging groove 52. The position of the single tooth 53 away from the engaging groove 52 is also engaged with the tooth groove below the L-engaging plate 54. The L-engaging plate 54 is fixed to the connecting rod 35 below the slide 34.

[0056] In this embodiment, the function of the movable groove 57 is mainly to provide the pressure activity effect of the coupling bolt 55 and the pushing plate 7. In the actual operation process, the rice squeezing force that the pushing plate 7 needs to overcome may be too large, so the pushing plate 7 only needs to provide a lateral pressure change and a small distance squeezing activity. The specific operation is:

[0057] The engaging groove 52 provided below the pulling frame 51 meshes with the single tooth 53, and the surface of the single tooth 53 meshes with the tooth groove below the L-engaging plate 54. When the L-engaging plate 54 is pushed downward by the connecting rod 35, the single tooth 53 drives the pulling frame 51 to move laterally on the side of the slow-release layer 13, thereby driving the pushing plate 7 to provide lateral force to the rice on the inner side of the slow-release layer 13 through the coupling bolt 55. When the L-engaging plate 54 rises, the pushing plate 7 moves in the opposite direction. In this case, the rice can fall effectively to prevent the rice from being blocked inside the slow-release layer 13.

[0058] More specifically, the angle between the coupling bolt 55 and the pulling frame 51 is fixed by a nut. The actual vertical angle of the pushing plate 7 on the inner side of the buffer layer 13 can be changed by adjusting the rotation angle of the coupling bolt 55, thereby facilitating the change of the pushing effect of the pushing plate 7, so that a small cavity is formed on the inner side of the buffer layer 13 below the pushing plate 7. This situation normally occurs in the case of blockage, and the reciprocating motion effect of the pushing plate 7 prevents long-term blockage, thereby facilitating the discharge operation of the discharge port 14 below the buffer layer 13.

[0059] Working principle: First, the rice is transported to the top of the preheating layer 12 above the drying tower 1 through the feed conveyor belt 2. Before the rice falls normally to the preheating layer 12, the low-speed motor 31 on one side of the hot air chamber 11 is driven, and the low-speed motor 31 drives the rotating disk 32 to rotate inside the hot air chamber 11. The convex pin 33 on its surface can slide in the slide 34, pushing the slide 34 to rise. At this time, the connecting rod 35 on the top of the slide 34 can push the two sets of push-pull rods 41 in the material leveling mechanism 4 to unfold. The push-pull rod 41 is movably connected to the movable shaft 42 above. Under the restriction of the limit slide 47, the movable shaft 42 can drive the grain guide plate 6 to move horizontally above the inner side of the preheating layer 12. The movable shaft 42 moves so that the two groups of grain guide plates 6 move away from each other. During this process, the frame frame 431 in the driving assembly 43 is provided with side convex plates 432 on the upper and lower sides. The surfaces of the slide bars 434 on both sides of the side convex plates 432 are sleeved with springs 433. The springs 433 elastically conflict with the limiting sliding sleeves on the sides of the preheating layer 12. During the movement of the movable shaft 42, the frame frame 431 will first move a distance to release the elastic potential energy of the spring 433, and then the fixed teeth 45 on the surface of the movable shaft 42 will mesh with the meshing groove 44, so that the movable shaft 42 is moved as a whole inside the frame frame 431. At this time, the angle of the grain guide plate 6 changes until the annular outer protrusion 46 on one side of the fixed tooth 45 is engaged with the meshing groove 44. The rice is then brought into contact with the inner wall of the frame 431, and then the effect of continuous movement drives the grain guide plate 6 to fit with the inner wall of the preheating layer 12. At this time, the rice falls and gathers in the middle position of the inner side of the preheating layer 12, otherwise it gathers on both sides, thereby preventing the rice from being ridged when the feeding conveyor belt 2 feeds into the inner side of the preheating layer 12. Then, the rice falls between the two groups of hot air chambers 11 under the action of gravity. The two groups of hot air chambers 11 and the side baffles 15 achieve a sealing effect. The triangular airway 16 between the hot air chambers 11 can provide hot air at this time, thereby realizing the drying operation. After the drying is completed, the rice falls into the slow-release layer 13. At this time, the rice column will first contact the surface of the pushing plate 7, and then the rice will be dried at low temperatures. When the high-speed motor 31 drives the connecting rod 35 to fall, it will simultaneously drive the L-shaped plate 54 to fall. At this time, the single tooth 53 rotates through the engaging groove 52 to drive the pulling frame 51 to move laterally on the outer surface of the slow-release layer 13, and the pulling frame 51 is connected to the pushing plate 7 through the coupling bolt 55, and the slow-release layer 13 is provided with a movable groove 57 near the coupling bolt 55, and the rice is prevented from being pulled out under the action of the grain-blocking slide 46. At this time, the pushing plate 7 will provide a lateral pressure on the rice column on the inner side of the slow-release layer 13. Under the reciprocating motion operation, the rice can be normally slowed down in the slow-release layer 13 through the pushing plate 7, and finally the material is discharged through the discharge port 14 below the slow-release layer 13.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rice drying device with automatic loading, characterized in that: The drying tower (1) comprises two groups of hot air chambers (11), a preheating layer (12), a slow-release layer (13) and two groups of side baffles (15) which are fixedly constructed. The two groups of side baffles (15) are respectively fixed on both sides of the hot air chambers (11). The two groups of hot air chambers (11) are arranged opposite to each other. The preheating layer (12) and the slow-release layer (13) are respectively fixed on the upper and lower sides of the hot air chambers (11). A feeding conveyor belt (2) is arranged on the top of the preheating layer (12). Two groups of grain guide plates (6) are arranged inside the preheating layer (12), and the two groups of grain guide plates (6) move in opposite directions inside the preheating layer (12) through a material leveling mechanism (4), and the material leveling mechanism (4) is arranged on the outer surface of the preheating layer (12). The material leveling mechanism (4) drives the grain guide plates (6) to move inside the preheating layer (12) and drives the grain guide plates (6) to flip at an angle; Five groups of pushing plates (7) are arranged on the upper inner side of the slow-release layer (13), and the pushing plates (7) are moved laterally on the inner side of the slow-release layer (13) through a pulling mechanism (5). The side of the pushing plates (7) is fixedly connected to a coupling bolt (55), and the coupling bolt (55) is fixed to a pulling frame (51) through bolts, and the pulling frame (51) slides on the outer surface of the slow-release layer (13); A low-speed motor (31) is fixed on the outside of the hot air chamber (11). A rotating disk (32) is fixed to the output shaft of the low-speed motor (31). The rotating disk (32) rotates to drive a slide (34) to move up and down inside the hot air chamber (11). The upper and lower sides of the slide (34) are fixedly connected to the material leveling mechanism (4) and the pulling mechanism (5) through connecting rods (35) respectively.

2. The automatic loading rice drying device according to claim 1, characterized in that: A reciprocating transmission mechanism (3) is arranged on the surface of the hot air chamber (11), and the reciprocating transmission mechanism (3) comprises a low-speed motor (31) and a rotating disk (32). A convex pin (33) is fixedly arranged on the surface of the rotating disk (32) close to the slide (34), and the convex pin (33) is located at the position of the maximum circular diameter of the surface of the rotating disk (32). The convex pin (33) is slidably arranged inside the slide (34). The slide (34) is limited and slidable inside the hot air chamber (11) by a slider, and the rotating disk (32) rotates to drive the slide (34) to reciprocate up and down.

3. The automatic loading rice drying device according to claim 1 is characterized in that: The material leveling mechanism (4) comprises two groups of push-pull rods (41) and a driving assembly (43). The push-pull rods (41) are movably connected to a movable shaft (42) via a shaft sleeve at the top, and one end of the movable shaft (42) is fixedly connected to the side of the grain guide plate (6). The two groups of push-pull rods (41) are movably connected to each other at the bottom via a side plate, and the side plate is fixed to the top of the connecting rod (35).

4. The automatic loading rice drying device according to claim 3 is characterized in that: The preheating layer (12) is provided with a limit slide groove (47) near the movable shaft (42); the push-pull rod (41) pulls the movable shaft (42) to slide laterally in the limit slide groove (47); and the movable shaft (42) drives the grain guide plate (6) to move laterally inside the preheating layer (12).

5. The automatic loading rice drying device according to claim 3, characterized in that: The driving assembly (43) further comprises a frame (431) and two groups of side convex plates (432), wherein the two groups of side convex plates (432) are respectively fixedly arranged at the middle positions of the upper and lower sides of the frame (431), sliding rods (434) are fixed on both sides of the side convex plates (432), and the surfaces of the sliding rods (434) are sleeved with springs (433), and a limiting sliding sleeve is fixed at a position of the preheating layer (12) close to the sliding rods (434), and the frame (431) slides transversely on the outer surface of the preheating layer (12) via the sliding rods (434), and the side convex plates (432) are elastically connected to the limiting sliding sleeve via the springs (433).

6. The automatic loading rice drying device according to claim 5, characterized in that: A meshing groove (44) is provided on the upper inner side of the frame (431); a fixed tooth (45) is fixedly provided on the movable shaft (42) near the meshing groove (44); the fixed tooth (45) and the meshing groove (44) are meshed with each other; an annular protrusion (46) is fixed on one side of the fixed tooth (45); and the annular protrusion (46) and the side wall of the frame (431) are located in the same plane.

7. The automatic loading rice drying device according to claim 1, characterized in that: A discharge port (14) is provided at the bottom of the slow-heating layer (13); a triangular air duct (16) is provided on one side of the hot air chamber (11); the triangular air duct (16) is connected to the hot air chamber (11); and the hot air chamber (11) is respectively connected to an external heat source and a heat recovery component through an air pipe.

8. The automatic loading rice drying device according to claim 1, characterized in that: The buffer layer (13) is provided with a movable groove (57) near the coupling bolt (55), and the pulling frame (51) drives the coupling bolt (55) to move left and right in the movable groove (57). A grain-blocking slide (56) is slidably provided on the inner surface of the buffer layer (13) near the movable groove (57), and the coupling bolt (55) movably penetrates the grain-blocking slide (56) and is fixed to the pushing plate (7).

9. The automatic loading rice drying device according to claim 8, characterized in that: An engaging groove (52) is provided below the middle position of the pulling frame (51), and a single tooth (53) is movably connected to the position of the slow-release layer (13) near the engaging groove (52) through a shaft rod, and the single tooth (53) is meshed with the engaging groove (52).

10. The automatic loading rice drying device according to claim 9, characterized in that: Place The position of the single tooth (53) away from the engaging groove (52) is also engaged with the tooth groove below the L-engaging plate (54). The L-shaped plate (54) is fixed to the connecting rod (35) below the slide (34).

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