Rice lifting device for rice production and processing

Abstract

This invention relates to the field of conveying technology, specifically disclosing a rice lifting device for rice production and processing, comprising: a feeding unit; a discharging unit; a lifting unit; a telescopic guide unit; and a flexible oscillation unit. The telescopic guide plate can adaptively extend and retract according to the hopper's operating cycle; it precisely intervenes during unloading, forming a closed guide channel to ensure all rice is guided to the unloading port, avoiding secondary lifting, equipment wear, and efficiency loss caused by material falling back into the lifting chamber; the dynamic avoidance design of the telescopic guide plate allows it to automatically retract during non-unloading periods, avoiding structural interference with the downward hopper and ensuring the continuity and stability of the lifting cycle; the flexible oscillation unit works synergistically during hopper tipping and unloading, using the generated gentle oscillation effect to specifically disrupt the arching or adhesion effect formed by rice within the hopper. The flexible oscillation effectively reduces impact damage to the hopper and rice particles, ensuring the rice in the hopper is completely emptied.

Description

Technical Field

[0001] This invention relates to the field of conveying technology, and more specifically, to a rice lifting device for rice production and processing. Background Technology

[0002] In the existing rice production and processing process, bucket elevators are key vertical conveying equipment. In order to avoid the return downward path of the empty bucket after unloading, the fixed receiving guide plate at the discharge port of the traditional lifting device must maintain a certain distance from the circulation trajectory of the bucket. As a result, when the bucket is tilting and pouring out rice, especially in the early and late stages of tilting, some rice cannot be effectively caught by the receiving plate due to inertia or the trajectory of the spill, and falls directly into the internal area of ​​the lifting bin outside the receiving plate. Spilled rice not only causes material loss and cleaning burden, but also flows back to the bottom of the elevator, resulting in ineffective secondary lifting; at the same time, the fallen material is prone to accumulate in the lifting chamber, which may cause blockage or even affect the stability of the transmission. In addition, due to the adsorption and bridging effect between rice grains, traditional fixed structures cannot effectively intervene, often resulting in material residue in the hopper. This not only further reduces the single conveying capacity, but the long-term accumulation of residue may also cause mold growth and cross-contamination of subsequent batches of material. Summary of the Invention

[0003] To overcome the above-mentioned technical problems, the present invention proposes a rice lifting device for rice production and processing.

[0004] The objective of this invention can be achieved through the following technical solutions: A rice lifting device for rice production and processing includes: A feeding unit includes a feeding bin, the top of which is provided with a feeding port; The unloading unit is located directly above the feeding unit and includes an unloading bin and an unloading port located on one side of the unloading bin; The lifting unit is located between the feeding bin and the unloading bin, including the lifting bin connected to the feeding bin and the unloading bin. The lifting bin is equipped with a circulating lifting belt, and several hoppers are installed at equal intervals on the circulating lifting belt. A telescopic material guiding unit is installed at the discharge port and includes an inclined slide rail on which a telescopic material guiding plate adapted to the hopper is slidably installed. The flexible oscillation unit is installed inside the unloading hopper and located directly above the unloading port to oscillate the passing hopper.

[0005] As a further embodiment of the present invention: the lifting unit further includes a drive disc rotatably installed in the feeding bin and a driven disc rotatably installed in the unloading bin, the two ends of the circulating lifting belt are respectively sleeved on the drive disc and the driven disc, and a lifting motor for driving the drive disc is installed outside the feeding bin.

[0006] As a further aspect of the present invention: the flexible oscillation unit includes a drive shaft rotatably installed in the unloading hopper, a rotating cylinder is fixedly sleeved on the drive shaft, and a plurality of flexible oscillation plates are arranged circumferentially on the outer side of the rotating cylinder.

[0007] As a further aspect of the present invention: a first transmission wheel is coaxially fixed on the driven disc, a second transmission wheel is coaxially fixed on the transmission shaft, and a transmission belt connects the first transmission wheel and the second transmission wheel.

[0008] As a further embodiment of the present invention: the telescopic guide plate includes an inclined plate that is slidably connected to the slide rail, and an air blowing plate that is slidably attached to the circulating lifting belt is provided at the end of the inclined plate away from the unloading port. An air blowing chamber is provided in the air blowing plate, and a plurality of air blowing holes are provided at the top of the air blowing chamber.

[0009] As a further aspect of the present invention: an air passage communicating with the air blowing chamber is provided in the inclined plate, an air blowing component adapted to the air passage is installed in the lifting chamber, and a through hole communicating with the air blowing component is provided at the bottom of the air passage.

[0010] As a further aspect of the present invention: the air blowing component includes an air pump fixed to the inner wall of the lifting chamber, the output end of the air pump is connected to an air pipe communicating with the through hole, and the end of the air pipe away from the air pump is provided with a sealing ring that slides and seals with the inclined plate.

[0011] As a further aspect of the present invention: the discharge port is also provided with an intermittent driving component for driving the telescopic guide plate, and the intermittent driving component is connected to the flexible oscillation unit for transmission.

[0012] As a further aspect of the present invention: the intermittent drive component includes an air storage box fixed to the inner wall of the unloading hopper and a cylinder installed at the unloading port. The extended end of the cylinder is connected to a telescopic guide plate, and a connecting pipe is connected between the cylinder and the air storage box.

[0013] As a further embodiment of the present invention: a piston plate is slidably embedded in the gas storage box, a spring is provided between the piston plate and the bottom of the gas storage box, a pressure plate is connected to the upper end of the piston plate through a telescopic column, and a cam that fits against the pressure plate is coaxially fixed on the transmission shaft.

[0014] The beneficial effects of this invention are: The telescopic guide plate can extend and retract adaptively according to the operating cycle of the hopper; it intervenes precisely during unloading to form a closed guide channel, ensuring that all rice is directed to the unloading port, avoiding secondary lifting, equipment wear and efficiency loss caused by material falling back into the lifting hopper; the dynamic avoidance design of the telescopic guide plate allows it to automatically retract during non-unloading periods, avoiding structural interference with the downward hopper, and ensuring the continuity and stability of the lifting cycle; The flexible oscillation unit works synergistically during the hopper's tipping and unloading process. Through the gentle oscillation effect it generates, it specifically disrupts the arching or adhesion effect formed by rice within the hopper. The flexible oscillation effectively reduces impact damage to the hopper and rice particles, ensuring that the rice in the hopper is completely emptied. This reduces the frequency of internal blockages and malfunctions caused by material residue and backflow, thereby improving the stability and durability of the entire system. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is an overall sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the unloading hopper in this invention; Figure 4 This is a schematic diagram of the internal structure of the unloading hopper from another perspective in this invention; Figure 5 This is a schematic diagram of the back side structure of the unloading hopper in this invention; Figure 6 This is a schematic diagram of the telescopic material guiding unit in this invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 for Figure 6 Enlarged view at point B in the middle; Figure 9 This is a schematic diagram of the intermittent drive component in this invention.

[0017] In the picture: 100. Feeding unit; 110. Feeding bin; 120. Feeding port; 200. Unloading unit; 210. Unloading bin; 220. Unloading port; 300. Lifting unit; 310. Lifting bin; 320. Drive disc; 330. Driven disc; 331. First transmission wheel; 340. Lifting motor; 350. Circulating lifting belt; 360. Hopper; 400. Telescopic guide unit; 410. Slide rail; 420. Telescopic guide plate; 421. Inclined plate; 422. Air blowing plate; 423. Air passage; 424. Air blowing chamber; 425. Air blowing hole; 426. Through hole; 430. Air blowing component; 431. Air pump; 432. Air pipe; 433. Sealing ring; 440. Intermittent drive component; 441. Air storage box; 442. Cylinder; 443. Connecting pipe; 444. Piston plate; 445. Spring; 446. Telescopic column; 447. Pressure plate; 448. Cam; 500, Flexible oscillation unit; 510, Drive shaft; 511, Second drive wheel; 512, Drive belt; 520, Rotary drum; 530, Flexible oscillating plate. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0019] Please see Figure 1 and Figure 2 This invention discloses a rice lifting device for rice production and processing, comprising a feeding unit 100, a discharging unit 200, a lifting unit 300, a telescopic guiding unit 400, and a flexible oscillation unit 500; the feeding unit 100 includes a feeding bin 110, and a feeding port 120 is provided on the top of the feeding bin 110; the discharging unit 200 is located directly above the feeding unit 100, and includes a discharging bin 210 and a discharging port 220 provided on one side of the discharging bin 210; the lifting unit 300 is located between the feeding bin 110 and the discharging bin 210, and includes a lifting bin 310 connected to the feeding bin 110 and the discharging bin 210, wherein a circulating lifting belt 350 is provided inside the lifting bin 310, and a plurality of hoppers 360 are installed at equal intervals on the circulating lifting belt 350; Please see Figure 3 and Figure 4 The telescopic material guiding unit 400 is located at the discharge port 220 and includes an inclined slide rail 410. A telescopic material guiding plate 420 adapted to the hopper 360 is slidably installed on the slide rail 410. The flexible oscillation unit 500 is located inside the discharge bin 210 and directly above the discharge port 220, and is used to oscillate the passing hopper 360.

[0020] Specifically, rice is continuously fed into the feeding hopper 110 through the feeding port 120 via external conveying equipment or pipelines. The circulating lifting belt 350 rotates continuously, which can shovel the rice in the feeding hopper 110 into the various hoppers 360 along the way. Then, the hoppers 360 carry the rice upwards until they reach the unloading hopper 210 and are gradually turned over and unloaded by the circulating lifting belt 350. During the process of the hopper 360 tilting and dumping rice, the telescopic guide plate 420 periodically tilts upward and extends into the area between adjacent hoppers 360. The end of the telescopic guide plate 420 away from the discharge port 220 is in contact with the circulating lifting belt 350, thereby guiding the rice poured out of the hopper 360 above it, so that the rice is completely discharged from the discharge port 220, avoiding some rice from falling into the lifting chamber 310 and affecting the rice lifting efficiency or even causing damage to the lifting unit 300. After the rice in the hopper 360 is completely dumped, as the hopper 360 follows the circulating lifting belt 350 down to the lifting chamber 310, the telescopic guide plate 420 temporarily retracts to avoid the hopper 360 continuing to descend and to avoid interference with the hopper 360. In addition, during the dynamic tilting and unloading process of the hopper 360, the flexible oscillation unit 500 can generate an oscillation effect on the hopper 360 that is tilting and unloading, thereby breaking the arch bridge effect of the rice in the hopper 360, causing the rice stuck in the hopper 360 to be completely emptied, and further improving the unloading efficiency of the rice.

[0021] It should be noted that the telescopic guide plate 420 can adaptively extend and retract according to the operating cycle of the hopper 360; it precisely intervenes during unloading to form a closed guide channel, ensuring that all rice is guided to the unloading port 220, avoiding secondary lifting, equipment wear and efficiency loss caused by material falling back into the lifting chamber 310; the dynamic avoidance design of the telescopic guide plate 420 allows it to automatically retract during non-unloading periods, avoiding structural interference with the downward hopper 360, and ensuring the continuity and stability of the lifting cycle; The flexible oscillation unit 500 works in conjunction with the hopper 360 during the unloading process. Through the gentle oscillation effect it generates, it specifically breaks the arching or adhesion effect formed by rice in the hopper. The flexible oscillation effectively reduces the impact damage to the hopper 360 and the rice particles, ensuring that the rice in the hopper 360 is completely emptied. This reduces the frequency of internal blockages and malfunctions caused by material residue and backflow, and improves the stability and durability of the entire device.

[0022] In one embodiment, please refer to Figure 1 and Figure 2The lifting unit 300 also includes a drive disc 320 rotatably installed in the feeding bin 110 and a driven disc 330 rotatably installed in the unloading bin 210. The two ends of the circulating lifting belt 350 are respectively sleeved on the drive disc 320 and the driven disc 330. A lifting motor 340 for driving the drive disc 320 is installed outside the feeding bin 110. Specifically, the lifting motor 340 drives the drive disc 320 to rotate counterclockwise, thereby driving the circulating lifting belt 350 to run continuously. When the hopper 360 on the circulating lifting belt 350 passes through the feeding bin 110 from below the drive disc 320, the rice in the feeding bin 110 can be shoveled into the corresponding feeding bin 110, and then the rice is lifted upward into the unloading bin 210.

[0023] It is worth noting that when the hopper 360 passes under the drive disc 320 along with the circulating lifting belt 350, it ensures that the hopper 360 scoops up rice with the most stable posture and the best cutting angle, thereby improving the initial loading rate and consistency of a single hopper 360. The drive disc 320 and the driven disc 330 are precisely positioned at the feeding and unloading ends, respectively, ensuring that the tension of the circulating lifting belt 350 is uniform and the trajectory is stable during long-distance operation. This effectively prevents the belt from running off-center or the hopper 360 from shaking, making the rice more stable during the lifting process and reducing breakage or dust generation caused by vibration. The lifting motor 340 is installed outside the feeding hopper 110, which realizes the physical isolation between the power unit and the material environment, reducing the risk of rice dust entering the motor and causing failure.

[0024] Further, please refer to Figure 3 and Figure 4 The flexible oscillation unit 500 includes a drive shaft 510 rotatably installed in the unloading bin 210, a rotating cylinder 520 fixedly sleeved on the drive shaft 510, and a plurality of flexible oscillation plates 530 arranged circumferentially on the outer side of the rotating cylinder 520. Specifically, the flexible oscillating plate 530 on the rotating drum 520 is driven by the drive shaft 510 to rotate continuously counterclockwise. As the flexible oscillating plate 530 rotates circumferentially, the opening of the hopper 360, which gradually flips from above the driven plate 330 toward the discharge port 220, gradually tilts downward, thereby causing the rice contained in the corresponding hopper 360 to gradually pour out. The counterclockwise rotating flexible oscillating plate 530 can, to a certain extent, push and throw the poured rice away from the circulating lifting belt 350, causing the rice to separate from the circulating lifting belt 350, thereby ensuring that the rice is discharged into the discharge port 220 more smoothly. In addition, during the counterclockwise rotation, the flexible oscillating plate 530 can just make contact with the edge of the flipped-down hopper 360. Then the flexible oscillating plate 530 bends and deforms and continues to rotate upwards, avoiding the hopper 360. The continuous movement of multiple sets of flexible oscillating plates 530 oscillates and impacts the hopper 360 at multiple frequencies, thereby causing the rice stuck in the hopper 360 to be completely emptied onto the telescopic guide plate 420 below.

[0025] It should be noted that when the flexible oscillating plate 530 comes into contact with the edge of the overturned hopper 360 during rotation, it will first produce a controllable bending deformation to accumulate elastic potential energy, and then quickly rebound and detach, converting the continuous rotational motion into a high-frequency, low-amplitude pulsed oscillation impact on the hopper 360. The flexible impact can effectively destroy the adsorption and arching structure formed by the rice in the hopper 360 due to electrostatic force, moisture, etc., so as to completely empty the residual rice, while avoiding the impact and wear of rigid parts on the hopper 360 or the breakage damage to the rice particles. During the counterclockwise rotation of the flexible oscillating plate 530, it forms a dynamic guiding surface, which can guide and throw the rice being poured out of the hopper 360 away from the circulating lifting belt 350 (i.e., the direction of the discharge port 220). This action actively intervenes in the trajectory of the material, which not only accelerates the separation of materials, but also reduces the risk of materials splashing or adhering back to the circulating lifting belt 350 or the lifting chamber 310 due to inertia or airflow. The rotating drum 520 has multiple sets of flexible oscillating plates 530 evenly distributed around it, which ensures that each passing hopper 360 can be subjected to continuous oscillation multiple times within its short window of tipping and unloading, so that the cleaning effect is thorough and without any dead angles or omissions. Its rotational motion is naturally synchronized with the tipping and unloading process of the hopper 360.

[0026] Furthermore, please refer to Figure 5 A first transmission wheel 331 is coaxially fixed on the driven disk 330, and a second transmission wheel 511 is coaxially fixed on the transmission shaft 510. A transmission belt 512 connects the first transmission wheel 331 and the second transmission wheel 511. Specifically, under the transmission action of the transmission belt 512, the driven disc 330 can synchronously drive the transmission shaft 510 to rotate, thereby ensuring the synchronization of the oscillation action of the flexible oscillation unit 500 and the flipping and unloading action of the lifting unit 300.

[0027] In yet another embodiment, please refer to Figure 6 and Figure 7The telescopic guide plate 420 includes an inclined plate 421 that is slidably connected to the slide rail 410. An air blowing plate 422 that is slidably attached to the circulating lifting belt 350 is provided at one end of the inclined plate 421 away from the discharge port 220. An air blowing chamber 424 is provided in the air blowing plate 422, and a plurality of air blowing holes 425 are provided at the top of the air blowing chamber 424. Specifically, when the inclined plate 421 slides upward along the slide rail 410, the air blowing plate 422 slides and fits against the circulating lifting belt 350, causing the entire telescopic guide plate 420 to be positioned between two adjacent hoppers 360. The hopper 360 below the inclined plate 421 has already entered the lifting chamber 310, and the rice in this hopper 360 has been completely emptied. Meanwhile, the hopper 360 above the inclined plate 421 is in the process of unloading. At this time, the telescopic guide plate 420 remains in an extended position, and the circulating lifting belt 350 drives the hopper 360 above the inclined plate 421 to continuously rotate and gradually move vertically downward. In conjunction with the flexible oscillation unit 500 on one side, the hopper 360 is oscillated, thereby causing the rice in this hopper 360 to be completely emptied and fall into the discharge port 220 along the inclined plate 421. During the unloading process of the hopper 360 above the inclined plate 421, the airflow in the air blowing chamber 424 is continuously blown upward through the air blowing hole 425. The airflow is blown into the hopper 360 directly above, thereby further promoting the discharge of rice in the hopper 360. At the same time, it removes residual dust and water stains in the hopper 360, preventing the continuous accumulation of rice and impurities in the hopper 360.

[0028] It is worth noting that while the inclined plate 421 provides the basic flow guide surface, the air blowing plate 422 continuously blows air into the hopper 360 that is unloading material above through the air blowing hole 425. This directional airflow can effectively disturb the rice grains stuck at the bottom and corners of the hopper 360 due to the adsorption force. In particular, it forms an extremely effective supplement to the tiny adhesions or corner residues that the physical oscillation unit 500 may not be able to fully reach due to the physical oscillation. The continuously rising airflow not only removes residues but also has an active cleaning function. It can effectively blow away dust, light impurities, and possible water vapor condensates accumulated in the hopper 360, preventing cross-contamination caused by residues in different batches of materials in the shared hopper 360, thereby ensuring the processing quality of rice. The air blowing plate 422 only works when the telescopic guide plate 420 extends to the working position and the air blowing hole 425 is precisely aligned with the upper unloading hopper 360. The airflow path naturally matches the material falling trajectory of the hopper 360 as it flips and unloads.

[0029] Further, please refer to Figure 4 , Figure 6 and Figure 8The inclined plate 421 has an air passage 423 that communicates with the air blowing chamber 424. The lifting chamber 310 is equipped with an air blowing component 430 that is adapted to the air passage 423. The bottom of the air passage 423 has a through hole 426 that communicates with the air blowing component 430. The air blowing component 430 includes an air pump 431 fixed to the inner wall of the lifting chamber 310. The output end of the air pump 431 is connected to an air pipe 432 that communicates with the through hole 426. The end of the air pipe 432 away from the air pump 431 is provided with a sealing ring 433 that slides and seals against the inclined plate 421. Specifically, when the inclined plate 421 is in a sliding extended position, the through hole 426 is just connected to the air pipe 432. The sealing ring 433 can ensure the airtightness of the connection between the air pipe 432 and the through hole 426. The air pump 431 is turned on, thereby pumping air into the air passage 423 through the air pipe 432. Then the airflow enters the blowing chamber 424 and is ejected from each blowing hole 425. When the inclined plate 421 briefly slides back to avoid the hopper 360, the through hole 426 is just offset from the air outlet of the air pipe 432, and the airflow is cut off at this time.

[0030] It should be noted that the sliding trajectory of the inclined plate 421 directly determines the opening and closing of the air passage. When the inclined plate 421 slides to the working position, the through hole 426 and the air pipe 432 are automatically aligned and connected. The airflow is only supplied during the time period when the telescopic guide plate 420 is actually in the guiding and cleaning working position. When it retracts, it is automatically disconnected. The air source system (air pump 431, air pipe 432) is fixed to the inner wall of the static lifting chamber 310 and is only connected to the moving inclined plate 421 through the sealing ring 433 to achieve sliding sealing. This avoids the risk of pipeline entanglement, wear and leakage caused by installing the air supply pipeline on the moving parts.

[0031] Furthermore, please refer to Figure 4 and Figure 6 The discharge port 220 is also provided with an intermittent drive component 440 for driving the telescopic guide plate 420, and the intermittent drive component 440 is connected to the flexible oscillation unit 500 in a transmission connection. Specifically, in the initial state, the telescopic guide plate 420 always maintains a sliding extended posture. At this time, the air blowing plate 422 at the end of the inclined plate 421 slides and adheres to the vertical surface of the circulating lifting belt 350, thereby guiding the unloading of the upper hopper 360. When the hopper 360 above the telescopic guide plate 420 is completely emptied, the flexible oscillation unit 500 drives the telescopic guide plate 420 to retract intermittently through the intermittent drive component 440 to briefly avoid the hopper 360 above it, so that the emptied hopper 360 can smoothly enter the lifting chamber 310. Subsequently, the flexible oscillation unit 500 drives the telescopic guide plate 420 to slide and extend again through the intermittent drive component 440 and maintain the extended posture, waiting for the next set of hoppers 360 to flip and unload. This process is repeated, and the intermittent extension and retraction of the telescopic guide plate 420 is driven by the intermittent drive component 440 to achieve the periodic switching of the extension guiding and retraction avoidance actions of the telescopic guide plate 420.

[0032] It is worth noting that after the flexible oscillation unit 500 completes the oscillation and cleaning of the hopper 360, its continuous rotational motion is directly converted into the power to drive the telescopic guide plate 420 to retract periodically through the intermittent drive component 440. Since the driving source comes directly from the flexible oscillation unit 500, the telescopic guide plate 420's telescopic rhythm is coupled with the unloading posture of the hopper 360, thus ensuring that the avoidance action always occurs at the precise moment before the current hopper 360 is completely emptied and about to move downwards to interfere, while the extension action is always reset before the next hopper 360 enters the unloading area, fundamentally eliminating collisions or interference with the hopper 360.

[0033] Accordingly, please refer to Figure 6 and Figure 9 The intermittent drive component 440 includes an air storage box 441 fixed on the inner wall of the unloading bin 210 and a cylinder 442 installed at the unloading port 220. The extended end of the cylinder 442 is connected to the telescopic guide plate 420, and a connecting pipe 443 is connected between the cylinder 442 and the air storage box 441. A piston plate 444 is slidably embedded in the gas storage box 441. A spring 445 is provided between the piston plate 444 and the bottom of the gas storage box 441. A pressure plate 447 is connected to the upper end of the piston plate 444 through a telescopic column 446. A cam 448 that fits against the pressure plate 447 is coaxially fixed on the transmission shaft 510. Specifically, in the initial state, the telescopic rod of cylinder 442 is in the extended state, and the telescopic guide plate 420 is also in the corresponding sliding extended posture. At this time, the piston plate 444 is located at the upper end of the air storage box 441, the telescopic column 446 extends upward, and the pressure plate 447 contacts the non-protruding part (i.e. the arc surface) of the cam 448. During this process, although the transmission shaft 510 drives the cam 448 to rotate synchronously, it will not push the pressure plate 447 downward, thereby ensuring that the telescopic guide plate 420 is in the extended posture to guide the rice into the discharge port 220. When the hopper 360 above the telescopic guide plate 420 is completely emptied, the drive shaft 510 just drives the protrusion of the cam 448 to contact the pressure plate 447, thereby pushing the pressure plate 447 to move downward, which in turn drives the piston plate 444 to squeeze the gas in the air storage box 441 into the cylinder 442 through the connecting pipe 443. The spring 445 is compressed, thereby causing the telescopic rod in the cylinder 442 to retract, so as to drive the telescopic guide plate 420 to temporarily retract to avoid the hopper 360 above. When the emptied hopper 360 completely enters the lifting chamber 310, the drive shaft 510 continues to drive the non-protruding part of the cam 448 to contact the pressure plate 447. As a result, under the elastic force of the spring 445, the piston plate 444 slides upward to reset, and the gas in the cylinder 442 is re-inhaled into the air storage box 441. The cylinder 442 generates negative pressure, which pushes the telescopic rod and the telescopic guide plate 420 to slide out and reset. In practical applications, the transmission ratio between the first transmission wheel 331 and the second transmission wheel 511, as well as the structural dimensions of the cam 448, can be set to ensure that the timing of the extension and retraction of the telescopic guide plate 420 matches the motion cycle of the hopper 360, thereby satisfying the above-mentioned action flow.

[0034] It should be noted that the contact between the cam 448 and the pressure plate 447 converts the rotational motion into a precise linear trigger signal. The pneumatic circuit (air storage box 441, connecting pipe 443, cylinder 442) acts as the actuator, converting the trigger signal into a driving action. When the cam 448 pushes the pressure plate 447 down, it compresses the spring 445 and squeezes out gas to drive the cylinder 442 to retract. During this process, the spring 445 stores energy. After the protrusion of the cam 448 has rotated, the energy stored in the spring 445 is released, pushing the piston plate 444 to reset and draw the gas in the cylinder 442 back into the air storage box 441, storing energy and medium for the next action. In the initial (extended) state, the non-protruding part of the cam 448 is in contact with the pressure plate 447. In this state, the telescopic rod of the cylinder 442 extends, thereby keeping the telescopic guide plate 420 stably extended.

[0035] The specific embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A rice lifting device for rice production and processing, characterized in that, include: The feeding unit (100) includes a feeding bin (110) with a feeding port (120) at the top. The unloading unit (200) is located directly above the feeding unit (100) and includes an unloading bin (210) and an unloading port (220) located on one side of the unloading bin (210). The lifting unit (300) is located between the feeding bin (110) and the unloading bin (210), including the lifting bin (310) connected to the feeding bin (110) and the unloading bin (210). A circulating lifting belt (350) is provided in the lifting bin (310), and several hoppers (360) are installed at equal intervals on the circulating lifting belt (350). A telescopic guide unit (400) is provided at the discharge port (220) and includes an inclined slide rail (410) on which a telescopic guide plate (420) adapted to the hopper (360) is slidably installed. A flexible oscillation unit (500) is installed inside the unloading bin (210) and directly above the unloading port (220) to oscillate the passing hopper (360).

2. The rice lifting device for rice production and processing according to claim 1, characterized in that, The lifting unit (300) further includes a drive disc (320) rotatably installed in the feeding bin (110) and a driven disc (330) rotatably installed in the unloading bin (210). The two ends of the circulating lifting belt (350) are respectively sleeved on the drive disc (320) and the driven disc (330). A lifting motor (340) for driving the drive disc (320) is installed outside the feeding bin (110).

3. The rice lifting device for rice production and processing according to claim 2, characterized in that, The flexible oscillation unit (500) includes a drive shaft (510) rotatably installed in the unloading bin (210), a rotating cylinder (520) is fixedly sleeved on the drive shaft (510), and a plurality of flexible oscillation plates (530) are arranged circumferentially on the outer side of the rotating cylinder (520).

4. The rice lifting device for rice production and processing according to claim 3, characterized in that, A first transmission wheel (331) is coaxially fixed on the driven disc (330), and a second transmission wheel (511) is coaxially fixed on the transmission shaft (510). A transmission belt (512) connects the first transmission wheel (331) and the second transmission wheel (511).

5. A rice lifting device for rice production and processing according to claim 1, characterized in that, The telescopic guide plate (420) includes an inclined plate (421) that is slidably connected to the slide rail (410). An air blowing plate (422) that is slidably attached to the circulating lifting belt (350) is provided at one end of the inclined plate (421) away from the discharge port (220). An air blowing chamber (424) is provided in the air blowing plate (422), and a plurality of air blowing holes (425) are provided at the top of the air blowing chamber (424).

6. A rice lifting device for rice production and processing according to claim 5, characterized in that, The inclined plate (421) has an air passage (423) that communicates with the air blowing chamber (424), and the lifting chamber (310) is equipped with an air blowing component (430) that is compatible with the air passage (423). The bottom of the air passage (423) has a through hole (426) that communicates with the air blowing component (430).

7. A rice lifting device for rice production and processing according to claim 6, characterized in that, The air blowing component (430) includes an air pump (431) fixed to the inner wall of the lifting chamber (310). The output end of the air pump (431) is connected to an air pipe (432) that communicates with the through hole (426). The end of the air pipe (432) away from the air pump (431) is provided with a sealing ring (433) that slides and seals against the inclined plate (421).

8. A rice lifting device for rice production and processing according to claim 3, characterized in that, The discharge port (220) is also provided with an intermittent drive component (440) for driving the telescopic guide plate (420), and the intermittent drive component (440) is connected to the flexible oscillation unit (500) for transmission.

9. A rice lifting device for rice production and processing according to claim 8, characterized in that, The intermittent drive unit (440) includes an air storage box (441) fixed on the inner wall of the unloading bin (210) and a cylinder (442) installed at the unloading port (220). The extended end of the cylinder (442) is connected to the telescopic guide plate (420), and a connecting pipe (443) is connected between the cylinder (442) and the air storage box (441).

10. A rice lifting device for rice production and processing according to claim 9, characterized in that, A piston plate (444) is slidably embedded in the gas storage box (441). A spring (445) is provided between the piston plate (444) and the bottom of the gas storage box (441). A pressure plate (447) is connected to the upper end of the piston plate (444) through a telescopic column (446). A cam (448) that fits against the pressure plate (447) is coaxially fixed on the transmission shaft (510).

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