An automatic rice steaming and discharging device capable of preventing rice from adhering to each other

Abstract

The utility model discloses an automatic rice steaming and discharging device preventing rice grain adhesion, comprising: a rack, the rack bottom is installed with support subassembly, a transmission mechanism, transmission mechanism installs on the rack, a material box, the rack top is installed with support frame, and the material box is installed on the support frame, and the bottom of material box is equipped with the discharge gate, and the discharge gate is hinged with the baffle, and the material box is installed with the automatic open and close subassembly, a blast pipe, the blast pipe is installed with several groups in the material box, and the blast pipe is equipped with the air inlet, a vibration component, the vibration component installs on the material box, a separation component, the separation component installs on the rack, and the separation component is arranged corresponding with the discharge gate, air cooling component, air cooling component installs on the rack, and the rear end of rack is installed with the guide plate. The utility model effectively avoids rice grain caking or adhering into a group, ensures that rice grain keeps loose independent state, and is convenient for subsequent subpackaging, processing and other link operation.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to an automated rice steaming and discharging device that prevents rice grains from sticking together. Background Technology

[0002] In the industrial production of steamed rice, after the rice is steamed, the surface viscosity increases significantly due to starch gelatinization. During the unloading and transportation process, rice grains are prone to sticking together and clumping, and may even block the conveyor belt. This problem seriously affects production efficiency and product quality and has been a long-standing technical pain point for the industry.

[0003] Traditional rice steaming, feeding, and transportation rely heavily on manual operation: operators need to manually transfer the steamed rice grains from the steaming equipment to the transportation device, which is not only labor-intensive and inefficient, but also prone to hygiene hazards due to human contact (such as microbial contamination and foreign matter mixing). At the same time, the manual transfer process can easily cause the rice grains to break, affecting the appearance and taste of the product.

[0004] To achieve automated production, some automated rice discharging devices have emerged in existing technologies. These devices primarily use mechanical structures to control the opening and closing of the feeding hopper to discharge the rice, and work in conjunction with a conveyor belt to transport the rice grains. However, these devices have significant shortcomings in addressing the problems of rice grain sticking and conveyor belt blockage. Firstly, cooked rice grains tend to clump together and stick together further when left to settle in the feeding hopper. Mechanical opening and closing alone is insufficient to achieve uniform dispersion of the rice grains, and the clumps easily cause blockages when they enter the conveyor belt. Secondly, existing devices lack specific methods to address the stickiness of the rice grains. They neither utilize airflow to disperse the sticky grains beforehand nor employ cooling measures to reduce stickiness. This makes it difficult to avoid rice grain sticking on the conveyor belt, requiring frequent shutdowns to clean it, severely impacting production continuity and increasing equipment maintenance costs.

[0005] In summary, existing rice steaming and conveying equipment cannot effectively solve the problems of rice grain sticking and conveyor belt blockage. There is an urgent need for a technical solution that can address the issues from multiple dimensions, such as rice grain dispersion and reduced stickiness, to achieve automated rice steaming and discharge while effectively avoiding sticking and blockage, so as to meet the needs of efficient, continuous and stable industrial rice steaming production. Utility Model Content

[0006] The purpose of this invention is to provide an automated rice steaming and discharging device that prevents rice grains from sticking together, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following solution: This utility model provides an automated rice steaming and discharging device to prevent rice grains from sticking together, comprising: A frame, with a support assembly mounted at its bottom; The transmission mechanism is mounted on the frame; The material bin has a support frame mounted on the top of the frame, and the material bin is mounted on the support frame. The bottom of the material bin has a discharge port, and a baffle is hinged to the discharge port. An automatic opening and closing assembly is installed on the material bin to control the opening and closing of the baffle. The air duct is provided with several sets installed in the material box. The air duct is connected to the air supply system and has an air inlet. A vibration assembly, which is mounted on the hopper; A separation component is mounted on the frame and is arranged corresponding to the discharge port; An air-cooling component is mounted on the frame and located between the air-cooling component and the material bin. The air-cooling component is used to cool the conveying mechanism and reduce rice grain sticking. The rear end of the frame is equipped with a guide plate.

[0008] According to the automated rice steaming and discharging device for preventing rice grain sticking provided by this utility model, the transmission mechanism includes a transmission roller and a conveyor belt. The transmission roller is provided in four sets, and all four sets of transmission rollers are rotatably connected to the frame. The four sets of transmission rollers are driven by the conveyor belt. A chain is installed on the edge of the conveyor belt. A sprocket set is installed on the transmission roller and meshes with the chain. A motor is installed on the frame, and a drive gear is fixedly connected to the output shaft of the motor. The drive gear and the sprocket set are driven by the chain.

[0009] According to the automatic rice steaming and discharging device for preventing rice grain sticking provided by this utility model, the automatic opening and closing component includes a hinge plate with an elongated groove. One end of the hinge plate is rotatably connected to the side of the baffle. A positioning shaft is fixed on the side wall of the feed box and is slidably connected in the elongated groove. A positioning nut is threaded onto the positioning shaft and abuts against the hinge plate.

[0010] According to the automated rice steaming and discharging device for preventing rice grain sticking provided by this utility model, the vibration component includes a vibration motor, which is installed on the side wall of the feed box. Several sets of vertical shafts are installed on the top of the support frame. A mounting seat is fixedly connected to the side wall of the feed box. The mounting seat is slidably connected to the vertical shaft. A spring is fixed between the mounting seat and the top of the support frame.

[0011] According to the automated rice steaming and discharging device for preventing rice grain sticking provided by this utility model, the air supply system includes a fan, the output end of the fan is equipped with a conveying pipe, the conveying pipe is connected to a distributor, the distributor is equipped with a plurality of distribution pipes, and the distribution pipes are connected to the air duct.

[0012] According to the automated rice steaming and discharging device for preventing rice grain sticking provided by this utility model, the separation component includes a fixed plate and a mounting plate. The fixed plate is symmetrically fixed on the frame, and the two ends of the mounting plate are detachably connected to the fixed plate. Several separation brushes are installed at the bottom of the mounting plate, and the separation brushes are in contact with the top surface of the conveyor belt.

[0013] According to the automated rice steaming and discharging device for preventing rice grain sticking provided by this utility model, the air-cooling component includes an air cooler, and two sets of air coolers are provided. The two sets of air coolers are symmetrically installed on the frame, and a gap is provided between the air cooler and the conveyor belt.

[0014] According to the automated rice steaming and discharging device for preventing rice grain sticking provided by this utility model, several sets of support components are installed at the bottom of the frame. The support components include support screws and bases. The support screws are vertically threaded to the bottom of the frame, and the bases are fixed to the bottom of the support screws.

[0015] The present invention discloses the following technical effects: The vibration component breaks up the initial adhesion at the source of the material bin, the airflow in the duct enhances the looseness of the rice grains, the separation component further separates any remaining adhesion, and the air-cooling component prevents subsequent adhesion through a cooling and transmission mechanism. This multi-dimensional control covers the entire process of rice grain storage, discharging, and conveying, effectively preventing rice grains from clumping or sticking together, ensuring that the rice grains remain loose and independent, facilitating subsequent packaging, processing, and other operations. The automatic opening and closing component precisely controls the opening and closing of the baffle, replacing manual opening and closing of the feed port and avoiding delays and errors caused by manual operation; the conveying mechanism automatically completes the conveying of rice grains without the need for manual handling or transfer; all components work together through a program to achieve continuous operation and significantly reduce manpower input.

[0016] The bottom support assembly of the frame provides a stable foundation for the device, preventing overall displacement due to vibration during operation and ensuring the coordinated precision of each component. The material bin, separation component, air-cooling component, and conveying mechanism are arranged sequentially along the material flow direction, with a compact structure and smooth connection, reducing losses during rice grain conveying. The rear guide plate can be flexibly adjusted in angle according to the height or position of subsequent equipment to adapt to different production line layouts. In addition, the modular design of each component facilitates maintenance and repair, extends the service life of the device, and can meet the rice output needs of different scales such as canteens and food processing plants. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the automated rice steaming and discharging device for preventing rice grains from sticking together according to this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0019] The components are as follows: 1. Frame; 2. Material box; 3. Baffle; 4. Air duct; 5. Guide plate; 6. Drive roller; 7. Conveyor belt; 8. Chain; 9. Motor; 10. Hinge plate; 11. Vibrating motor; 12. Mounting base; 13. Spring; 14. Fixing plate; 15. Mounting plate; 16. Separating brush; 17. Air cooler; 18. Support screw; 19. Base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figures 1-2 This utility model provides an automated rice steaming and discharging device to prevent rice grains from sticking together, comprising: Frame 1, with a support assembly installed at its bottom; The transmission mechanism is mounted on the frame 1; Material bin 2, the top of the frame 1 is equipped with a support frame, the material bin 2 is mounted on the support frame, the bottom of the material bin 2 is provided with a discharge port, the discharge port is hinged with a baffle 3, and the material bin 2 is equipped with an automatic opening and closing assembly for controlling the opening and closing of the baffle 3; Air duct 4, several sets of air duct 4 are installed in the material box 2, the air duct 4 is connected to the air supply system, and the air duct 4 is provided with an air inlet hole; A vibration assembly is mounted on the hopper 2; A separation component is mounted on the frame 1 and is arranged corresponding to the discharge port; An air-cooling component is installed on the frame 1 and is located between the air-cooling component and the material box 2. The air-cooling component is used to cool the conveying mechanism and reduce rice grain sticking. The rear end of the frame 1 is equipped with a guide plate 5.

[0023] After the device is started, the steamed rice grains are first conveyed to the material box 2 on the top support frame of the machine frame 1. At this time, the vibration component on the material box 2 starts to work, causing the material box 2 to shake through high-frequency slight vibration, initially breaking up the stickiness between the rice grains caused by moisture. At the same time, the air supply system starts, supplying air to several sets of air ducts 4 in the material box 2. The airflow is blown out evenly from the air inlet on the air duct 4, further loosening the rice grains and preventing them from clumping in the material box 2. When the rice grains are loosened, the automatic opening and closing component on the material box 2 is activated, driving the baffle 3 hinged at the discharge port to flip downward and open. The rice grains fall naturally along the discharge port and land on the separation component arranged on the machine frame 1 corresponding to the discharge port. The separation component uses a rotating toothed disc or screen structure to perform a secondary physical separation of the rice grains that are still slightly sticky during the fall, ensuring that each rice grain falls independently. The rice grains then fall onto the conveying mechanism below. At this point, the air-cooling component on frame 1 activates, continuously blowing cold air onto the surface of the conveying mechanism to cool it down and prevent the rice grains from sticking together again due to residual ambient heat or heat conducted by the rice grains. The conveying mechanism moves the rice grains towards the rear end of frame 1 at a stable speed. Finally, guided by the guide plate 5 at the rear end of frame 1, the rice grains fall precisely into subsequent processing equipment or a collection container. When the rice grains in the hopper 2 reach the set amount, the automatic opening and closing component drives the baffle 3 to close, completing a single discharge cycle. The entire process requires no manual intervention and can achieve continuous automated operation.

[0024] In a further optimized design, the transmission mechanism includes a transmission roller 6 and a conveyor belt 7. Four sets of transmission rollers 6 are rotatably connected to the frame 1. These four sets of transmission rollers 6 are driven by the conveyor belt 7. A chain 8 is mounted on the edge of the conveyor belt 7. A sprocket assembly is mounted on the transmission roller 6, and the sprocket assembly meshes with the chain 8. A motor 9 is mounted on the frame 1, and a drive gear is fixedly connected to the output shaft of the motor 9. The drive gear and the sprocket assembly are driven by the chain 8.

[0025] After the motor 9 starts, the output shaft drives the drive gear to rotate. The drive gear transmits power to the sprocket set on the transmission roller 6 through the chain 8. Because the chain 8 at the edge of the conveyor belt 7 meshes with the sprocket set, the four sets of transmission rollers 6 rotate synchronously and drive the conveyor belt 7 to run. The four sets of transmission rollers 6 are arranged in a rectangular layout, supporting the feed end, discharge end and middle section of the conveyor belt 7 respectively. This ensures the tension of the conveyor belt 7 to avoid slippage, and through the rigid meshing transmission of the chain 8 and sprocket, it ensures that the conveyor belt 7 conveys rice grains at a uniform speed, realizing a stable material transfer from below the separation component to the guide plate 5.

[0026] A spiral tensioning structure is installed at the bearing housing of the driven end drive roller 6. When the chain 8 elongates due to wear, the bearing housing can be moved by adjusting the tension screw to compensate for the elongation of the chain 8 and prevent the chain 8 from loosening. The tensioning stroke must meet the normal operation requirements after removing two sections of the chain 8 to extend the service life of the chain 8.

[0027] In a further optimized version, the automatic opening and closing assembly includes a hinge plate 10 with an elongated groove. One end of the hinge plate 10 is rotatably connected to the side of the baffle 3. A positioning shaft is fixed on the side wall of the material box 2 and is slidably connected in the elongated groove. A positioning nut is threaded onto the positioning shaft and abuts against the hinge plate 10.

[0028] The opening and closing action of the baffle 3 is achieved through the lever movement of the hinge plate 10: one end of the hinge plate 10 is rotatably connected to the baffle 3, and the positioning shaft of the side wall of the material box 2 slides along the long groove of the hinge plate 10, forming an adjustable rotation fulcrum. When the driving component (such as a cylinder or motor 9) drives the hinge plate 10 to swing, the positioning shaft moves in the long groove, changing the lever arm length of the hinge plate 10, thereby driving the baffle 3 to rotate around the hinge point. The positioning nut, by abutting against the hinge plate 10, can lock the position of the hinge plate 10, achieving precise positioning of the opening and closing angle of the baffle 3, preventing material leakage from the material outlet or uncontrolled material output.

[0029] In a further optimized scheme, the vibration assembly includes a vibration motor 11, which is mounted on the side wall of the material box 2. Several sets of vertical shafts are mounted on the top of the support frame. A mounting base 12 is fixedly connected to the side wall of the material box 2. The mounting base 12 is slidably connected to the vertical shafts. A spring 13 is fixed between the mounting base 12 and the top of the support frame.

[0030] When the vibrating motor 11 is powered on, it generates high-frequency vibration, which is transmitted to the entire body of the material bin 2 through the side wall of the material bin 2. The material bin 2 slides up and down along the vertical axis of the support frame via the mounting base 12. The spring 13 between the mounting base 12 and the support frame repeatedly expands and contracts under the action of vibration, which not only buffers the vibration but also amplifies the vibration amplitude of the material bin 2. This structure of vibrating motor 11 + elastic support causes the material bin 2 to generate directional high-frequency shaking, breaking the moisture adhesion between rice grains, while preventing the vibration from being transmitted to the frame 1 and causing overall instability.

[0031] After the blower starts, the airflow generated enters the distributor through the delivery pipe. The distributor evenly distributes the concentrated airflow into several distribution pipes, which then deliver it to the various sets of air ducts 4 inside the material bin 2. The airflow is blown radially out from the air inlet of the air duct 4, forming a multi-directional airflow field within the material bin 2. This field works in conjunction with the vibration components to further loosen the rice grain clumps and prevent localized agglomeration within the material bin 2. The distributor ensures that the airflow in each set of air ducts 4 is consistent, avoiding localized adhesion problems caused by uneven airflow.

[0032] In a further optimized version, the air supply system includes a fan, the output end of which is equipped with a delivery pipe, which is connected to a distributor, and the distributor is equipped with several branch pipes, which are connected to the air duct 4.

[0033] Stainless steel ball valves are installed on each branch pipe, which can adjust the air volume of each group of air ducts 4 individually, and deliver air precisely to different areas of the material box 2 to address the adhesion situation; the fan is equipped with a frequency converter to achieve stepless adjustment of the total air volume.

[0034] A rotatable guide plate is installed at the air outlet of the air cooler 17. The angle of multiple guide plates is adjusted synchronously through gear transmission, so that the cold air is accurately blown onto the surface of the conveyor belt 7, avoiding direct blowing onto rice grains and causing splashing.

[0035] In a further optimized design, the separation assembly includes a fixed plate 14 and a mounting plate 15. The fixed plate 14 is symmetrically fixed on the frame 1, and the two ends of the mounting plate 15 are detachably connected to the fixed plate 14. Several separation brushes 16 are installed at the bottom of the mounting plate 15, and the separation brushes 16 are in contact with the top surface of the conveyor belt 7.

[0036] The brush bristles are made of food-grade nylon conforming to GB4806.7-2016 standards, with a diameter of 0.1-0.3mm and moderate hardness to avoid damaging the rice grain surface; the bristle spacing is set at 2-3mm to accommodate most rice grain sizes.

[0037] The fixed plates 14 are symmetrically fixed to the frame 1 to form a support frame. The mounting plates 15 are fixed to the fixed plates 14 by bolts or other detachable structures, ensuring that the separating brushes 16 at the bottom are in close contact with the top surface of the conveyor belt 7. When rice grains move along the conveyor belt 7 and pass through the separating brushes 16, the brush bristles exert a lateral combing force on the rice grains, separating the not completely loosened and sticky rice grains into individual particles. The detachable mounting plates 15 are designed to facilitate adjustment of the spacing and height of the separating brushes 16 according to the type of rice grains, adapting to materials with different degrees of stickiness.

[0038] In a further optimized design, the air-cooling component includes an air cooler 17, and two sets of air coolers 17 are provided. The two sets of air coolers 17 are symmetrically installed on the frame 1, and a gap is provided between the air cooler 17 and the conveyor belt 7.

[0039] Two sets of air coolers 17 are symmetrically arranged on both sides of the frame 1. After being powered on, they blow cold air onto the surface of the conveyor belt 7. Because the air coolers 17 maintain a set interval with the conveyor belt 7, the cold air forms a uniform airflow layer before contacting the conveyor belt 7. The airflow directly reduces the surface temperature of the conveyor belt 7, preventing the rice grains from sticking together again due to contact with the high-temperature conveyor belt 7. It also accelerates the evaporation of water vapor on the surface of the rice grains through airflow disturbance, further enhancing the anti-sticking effect. The symmetrical layout ensures uniform cooling in the width direction of the conveyor belt 7, with no localized overheating areas.

[0040] In a further optimized design, several sets of support components are installed at the bottom of the frame 1. Each support component includes a support screw 18 and a base 19. The support screw 18 is vertically threaded to the bottom of the frame 1, and the base 19 is fixed to the bottom of the support screw 18.

[0041] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An automated rice steaming and discharging device for preventing rice grains from sticking together, characterized in that, include: A frame (1) is provided with a support assembly at its bottom; A transmission mechanism, which is mounted on the frame (1); Material box (2), the top of the frame (1) is equipped with a support frame, the material box (2) is installed on the support frame, the bottom of the material box (2) is provided with a discharge port, the discharge port is hinged with a baffle (3), the material box (2) is equipped with an automatic opening and closing component for controlling the opening and closing of the baffle (3); Air duct (4), several sets of air duct (4) are installed in the material box (2), the air duct (4) is connected to the air supply system, and the air duct (4) is provided with an air inlet hole; A vibration assembly is mounted on the hopper (2); A separation component is mounted on the frame (1) and is arranged corresponding to the discharge port; Air-cooled assembly, the air-cooled assembly is installed on the frame (1) and the air-cooled assembly is located between the air-cooled assembly and the material box (2). The air-cooled assembly is used to cool down the conveying mechanism and reduce the stickiness of rice grains. The rear end of the frame (1) is equipped with a guide plate (5).

2. The automated rice steaming and discharging device for preventing rice grain sticking according to claim 1, characterized in that, The transmission mechanism includes a transmission roller (6) and a conveyor belt (7). There are four sets of transmission rollers (6), and all four sets of transmission rollers (6) are rotatably connected to the frame (1). The four sets of transmission rollers (6) are driven by the conveyor belt (7). A chain (8) is installed on the edge of the conveyor belt (7). A sprocket set is installed on the transmission roller (6). The sprocket set meshes with the chain (8). A motor (9) is installed on the frame (1). The output shaft of the motor (9) is fixedly connected to a drive gear. The drive gear and the sprocket set are driven by the chain (8).

3. The automated rice steaming and discharging device for preventing rice grain sticking according to claim 1, characterized in that, The automatic opening and closing assembly includes a hinge plate (10), on which a long groove is provided. One end of the hinge plate (10) is rotatably connected to the side of the baffle (3). A positioning shaft is fixed on the side wall of the material box (2). The positioning shaft is slidably connected in the long groove. A positioning nut is threaded on the positioning shaft. The positioning nut abuts against the hinge plate (10).

4. The automated rice steaming and discharging device for preventing rice grain sticking according to claim 1, characterized in that, The vibration assembly includes a vibration motor (11), which is mounted on the side wall of the material box (2). Several sets of vertical shafts are mounted on the top of the support frame. A mounting seat (12) is fixedly connected to the side wall of the material box (2). The mounting seat (12) is slidably connected to the vertical shaft. A spring (13) is fixed between the mounting seat (12) and the top of the support frame.

5. An automated rice steaming and discharging device for preventing rice grain sticking according to claim 1, characterized in that, The air supply system includes a fan, the output end of which is equipped with a delivery pipe, the delivery pipe is connected to a distributor, the distributor is equipped with several distribution pipes, and the distribution pipes are connected to the air duct (4).

6. An automated rice steaming and discharging device for preventing rice grain sticking according to claim 2, characterized in that, The separation assembly includes a fixed plate (14) and a mounting plate (15). The fixed plate (14) is symmetrically fixed on the frame (1). The two ends of the mounting plate (15) are detachably connected to the fixed plate (14). Several separation brushes (16) are installed at the bottom of the mounting plate (15). The separation brushes (16) are in contact with the top surface of the conveyor belt (7).

7. An automated rice steaming and discharging device for preventing rice grain sticking according to claim 2, characterized in that, The air-cooling assembly includes an air cooler (17), and there are two sets of air coolers (17). The two sets of air coolers (17) are symmetrically installed on the frame (1), and there is a gap between the air cooler (17) and the conveyor belt (7).

8. An automated rice steaming and discharging device for preventing rice grain sticking according to claim 1, characterized in that, The support assembly is installed in several sets at the bottom of the frame (1). The support assembly includes a support screw (18) and a base (19). The support screw (18) is vertically threaded to the bottom of the frame (1), and the base (19) is fixed to the bottom of the support screw (18).

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