A rice stacking apparatus
By combining roller compression and vibration motor vibration, the problem of tipping over caused by uneven distribution of rice in the rice bag is solved, thus achieving stability and safety of the rice bag during the stacking process and improving the reliability of the rice stacking equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANNING CITY WANG MEI RICE IND LTD CO
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-07
Smart Images

Figure CN224467013U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rice processing technology, and specifically relates to a rice stacking device. Background Technology
[0002] Current rice processing involves steps such as hulling, color sorting, polishing, color sorting again, screening of whole rice grains, packaging, and palletizing. After the rice is bagged, it needs to be palletized and then transferred using a forklift to improve efficiency. Current rice bag palletizing typically uses a conveyor belt in conjunction with a robotic arm. The conveyor belt transports the rice bags to a designated location, and the robotic arm stacks them on the pallet.
[0003] However, existing rice bag sealing methods typically use sewing sealing machines, which involve sealing the rice bags vertically. As a result, the rice inside the bag tends to concentrate at the bottom due to gravity, leaving the top of the bag as a hollow cavity. Afterward, the rice bags are pushed horizontally onto a conveyor belt, but the rice is still unevenly distributed, causing a shift in the bag's center of gravity. This can lead to the rice bags tipping over or slipping when stacked at a height.
[0004] Therefore, a rice stacking device is needed. Utility Model Content
[0005] The purpose of this utility model is to provide a rice stacking device to overcome the shortcomings of existing rice bags, where uneven distribution of rice inside the bags makes them difficult to stack flat, potentially causing the bags to tip over or slip. The specific technical solution is as follows:
[0006] A rice stacking device includes a frame, a conveyor belt, a rotary motor, support rods, crossbeams, rollers, a feeding platform, and a robotic arm. The conveyor belt is mounted on the frame and includes an inlet end and an outlet end. The rotary motor is mounted on the frame, and its output end is connected to the power input end of the conveyor belt. The support rods are vertically mounted on both sides of the frame. The two ends of the crossbeam are respectively connected to the top ends of the support rods. The rollers are mounted on the side of the crossbeam closest to the conveyor belt. The feeding platform is located on the outlet end side of the conveyor belt. Multiple rollers are arrayed on the feeding platform, and avoidance grooves are provided between the rollers to avoid the gripping part of the robotic arm. The robotic arm is located on one side of the feeding platform.
[0007] Preferably, an electric push rod is vertically installed on the top of the crossbeam, and the output end of the electric push rod passes through the crossbeam. A support frame is installed on the output end of the electric push rod, and the roller is rotatably installed on the support frame. A guide hole is opened on the crossbeam, and a guide rod is slidably installed in the guide hole. One end of the guide rod is connected to the support frame.
[0008] Preferably, protective shells are installed at both ends of the support frame, and grooves are provided at both ends of the support frame and on the side of the protective shell near the support frame. Rotary shafts are installed at both ends of the roller, and the rotating shafts are slidably installed in the grooves and pass through the grooves into the protective shells. A slider is slidably installed inside the protective shells, and the rotating shafts are rotatably connected to the sliders. A first spring is installed inside the protective shells, and the two ends of the first spring elastically abut against the top of the inner sidewall of the protective shells and the sliders, respectively.
[0009] Preferably, the roller has a hollow structure, and a rubber pad is fitted on the outer wall of the roller.
[0010] Preferably, baffles are installed on both sides of the frame, and support shafts are installed on the side walls of the baffles. The support shafts are arranged in an array on the baffles, and a guide plate is installed on the end of the support shafts on one side of the baffles that is close to the conveyor belt.
[0011] Preferably, the support shaft and the baffle are connected by a thread.
[0012] Preferably, a vibration motor is installed on the side of the guide plate that is connected to the support shaft.
[0013] Preferably, the support shaft has a movable groove at one end near the guide plate, a telescopic rod is installed on the side of the guide plate near the support shaft, the telescopic rod is slidably installed in the movable groove, and one end of the second spring is fitted onto the end of the support shaft near the guide plate, the other end of the second spring is connected to the guide plate.
[0014] Preferably, the end of the support shaft is equipped with a limiting plate to prevent the telescopic rod from leaving the movable groove.
[0015] Compared with existing technologies, this utility model has the following beneficial effects:
[0016] 1. This utility model uses rollers to squeeze the rice bag, pushing the rice inside the bag to move, so that the thickness of each part of the rice bag is roughly equal, thereby ensuring the stability of the rice bag and preventing the rice bag from slipping and tipping over due to uneven distribution of the center of gravity during stacking.
[0017] 2. This utility model guides the movement of rice bags using guide plates, preventing them from moving outside the working range of the rollers and ensuring the stable operation of the palletizing equipment. It can also shape the width of the rice bags for easier subsequent palletizing.
[0018] 3. This utility model installs a vibrating motor on a guide plate. When the roller squeezes the rice bag, the vibrating motor transmits vibration to the rice bag through the guide plate, making it easier for the rice inside the rice bag to move and facilitating the roller to smooth and squeeze the rice bag. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a side view of the present invention.
[0022] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle.
[0023] Figure 4 This is a schematic diagram of the connection structure between the support shaft and the guide plate of this utility model.
[0024] Explanation of key figure labels:
[0025] 1. Frame; 2. Conveyor belt; 3. Rotary motor; 4. Support rod; 5. Crossbeam; 6. Roller; 7. Roller; 8. Feeding platform; 9. Electric push rod; 10. Support frame; 11. Guide rod; 12. Protective shell; 13. Slide groove; 14. Rotating shaft; 15. Sliding block; 16. Baffle; 17. Support shaft; 18. Guide plate; 19. Vibration motor; 20. Telescopic rod; 21. Second spring; 22. First spring. Detailed Implementation
[0026] 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.
[0027] Next, the working principle of this embodiment will be described in detail so that those skilled in the art can better understand this utility model:
[0028] A rice stacking device includes a frame 1, a conveyor belt 2, a rotary motor 3, support rods 4, crossbeams 5, rollers 6, a feeding platform 8, rollers 7, and a robotic arm. The conveyor belt 2 is mounted on the frame 1 and includes an inlet end and an outlet end. The rotary motor 3 is mounted on the frame 1, and its output end is connected to the power input end of the conveyor belt 2 to drive its rotation. The sealed rice bags enter from the inlet end of the conveyor belt 2, where they are pushed down and flattened by the device. Support rods 4 are vertically installed on both sides of the frame 1 by bolts. The two ends of the crossbeam 5 are connected to the top of the support rods 4 by bolts. Rollers 6 are installed on the side of the crossbeam 5 closest to the conveyor belt 2. When the rice bags move forward under the action of the conveyor belt 2, they pass over rollers 6. If the highest point of the rice bag is higher than the lowest point of the roller 6, the roller 6 will roll and compress the rice bag. As the roller 6 rotates under the action of the rice bag, it flattens the rice inside, ensuring an even distribution of its center of gravity. This prevents the rice bags from slipping or tipping over due to uneven weight distribution during stacking. Simultaneously, because the roller 6 rotates under the action of the rice bag, it reduces relative sliding with the rice bag, preventing damage due to friction. The feeding platform 8 is located on one side of the discharge end of the conveyor belt 2. Multiple rollers 7 are arrayed on the feeding platform 8. The rollers 7 are driven by a drive element and a transmission mechanism (sprocket, gear, etc.). There are clearance grooves between the rollers 7 to avoid the gripping part of the robotic arm. The robotic arm is set on one side of the feeding platform 8 and is used to grab the rice bags that are moved to the pallet on the feeding platform 8 for stacking.
[0029] An electric push rod 9 is vertically mounted on the top of the crossbeam 5, and the output end of the electric push rod 9 passes through the crossbeam 5. A support frame 10 is bolted to the output end of the electric push rod 9. The roller 6 is rotatably mounted on the support frame 10. The electric push rod 9 can adjust the distance between the lowest point of the roller 6 and the conveyor belt 2, thereby making this application applicable to rice bags of different sizes and improving its practicality. A guide hole is provided on the crossbeam 5, and a guide rod 11 is slidably mounted in the guide hole. One end of the guide rod 11 is connected to the support frame 10, and the guide rod 11 is used to increase the stability of the support frame 10 and the roller 6.
[0030] Furthermore, protective shells 12 are bolted to both ends of the support frame 10. Slide grooves 13 are formed at both ends of the support frame 10 and on the side of the protective shell 12 closest to the support frame 10. Rotating shafts 14 are mounted at both ends of the roller 6. The rotating shafts 14 are slidably installed within the slide grooves 13 and pass through the slide grooves 13 into the protective shell 12. A slider 15 is slidably installed within the protective shell 12, and the rotating shafts 14 and slider 15 are rotatably connected. A first spring 22 is installed within the protective shell 12, with its two ends elastically resisting the top of the inner wall of the protective shell 12 and the slider 15, respectively. When the roller 6 squeezes the rice bag, it will move upwards under high resistance, creating a buffer to prevent excessive squeezing of the rice bag and thus ensure the quality of the rice.
[0031] Roller 6 has a hollow structure, making it lightweight and allowing it to rotate with less friction. This reduces the relative slippage between roller 6 and the rice bag, lowering the risk of the rice bag breaking. Rubber pads are fitted onto the outer wall of roller 6, increasing friction and further reducing relative slippage between roller 6 and the rice bag.
[0032] Baffles 16 are bolted to both sides of the frame 1. Support shafts 17 are mounted on the side walls of the baffles 16, and the support shafts 17 are arrayed on the baffles 16. A guide plate 18 is mounted on the end of the support shafts 17 on each side of the baffle 16 closest to the conveyor belt 2. The two guide plates 18 are combined to form a trumpet shape, with a larger opening at the end near the feed end. The guide plates 18 guide the movement of the rice bags, preventing them from moving outside the working range of the rollers 6 and ensuring the stable operation of the palletizing equipment. They also help to shape the width of the rice bags for easier subsequent palletizing.
[0033] The support shaft 17 and the baffle 16 are connected by a thread, so the spacing between the guide plates 18 can be adjusted, making this application applicable to rice bags of different sizes and improving its practicality.
[0034] A vibration motor 19 is installed on the side of the guide plate 18 that is connected to the support shaft 17. When the roller 6 squeezes the rice bag, the vibration motor 19 transmits vibration to the rice bag through the guide plate 18, making it easier for the rice in the rice bag to move and making it easier for the roller 6 to smooth and squeeze the rice bag.
[0035] A movable groove is provided at one end of the support shaft 17 near the guide plate 18. A telescopic rod 20 is installed on the side of the guide plate 18 near the support shaft 17, and the telescopic rod 20 is slidably installed in the movable groove. The guide plate 18 can move relative to the support shaft 17, thus generating a larger amplitude vibration under the action of the vibration motor 19, enhancing the vibration effect on the rice bag. One end of the second spring 21 is fitted onto one end of the support shaft 17 near the guide plate 18, and the other end of the second spring 21 is connected to the guide plate 18. The second spring 21 can be used to reset the guide plate 18 and can also further enhance the vibration effect of the guide plate 18. A limiting plate is installed at the end of the support shaft 17 to prevent the telescopic rod 20 from leaving the movable groove.
[0036] In summary, the method of use of this application is as follows: The packaged rice bag is pushed onto the conveyor belt 2 from the feed end. As the rice bag moves forward on the conveyor belt 2, the guide plate 18 will position the rice bag in the center of the conveyor belt 2. When the rice bag comes into contact with the roller 6, it will drive the roller 6 to rotate. At the same time, the roller 6 will squeeze the rice bag, pushing the rice inside the rice bag to move, so that the thickness of each part of the rice bag is approximately equal. During this process, the vibration motor 19 starts and transmits vibration to the rice bag through the guide plate 18 to assist the movement of the rice. Afterwards, the rice bag will leave the conveyor belt 2 from the discharge end and enter the loading platform 8. The robotic arm will grab the rice bag on the loading platform 8 and place it on the pallet for stacking.
[0037] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A rice stacking device, characterized in that, The system includes a frame (1), a conveyor belt (2), a rotary motor (3), a support rod (4), a crossbeam (5), a roller (6), a loading platform (8), rollers (7), and a robotic arm. The conveyor belt (2) is mounted on the frame (1) and includes an inlet end and an outlet end. The rotary motor (3) is mounted on the frame (1) and its output end is connected to the power input end of the conveyor belt (2). The support rod (4) is vertically mounted on both sides of the frame (1). The two ends of the crossbeam (5) are respectively connected to the top of the support rod (4). The roller (6) is mounted on the side of the crossbeam (5) near the conveyor belt (2). The loading platform (8) is located on the outlet end side of the conveyor belt (2). Multiple rollers (7) are arrayed on the loading platform (8). Avoidance grooves are provided between the rollers (7) to avoid the gripping part of the robotic arm. The robotic arm is located on one side of the loading platform (8).
2. The rice stacking equipment according to claim 1, characterized in that, An electric push rod (9) is vertically installed on the top of the crossbeam (5), and the output end of the electric push rod (9) passes through the crossbeam (5). A support frame (10) is installed on the output end of the electric push rod (9). The roller (6) is rotatably installed on the support frame (10). A guide hole is opened on the crossbeam (5), and a guide rod (11) is slidably installed in the guide hole. One end of the guide rod (11) is connected to the support frame (10).
3. The rice stacking equipment according to claim 2, characterized in that, The support frame (10) is equipped with protective shells (12) at both ends. The support frame (10) and the protective shell (12) near the support frame (10) are provided with sliding grooves (13). The roller (6) is equipped with rotating shafts (14) at both ends. The rotating shafts (14) are slidably installed in the sliding grooves (13) and the rotating shafts (14) pass through the sliding grooves (13) and enter the protective shell (12). The protective shell (12) is slidably installed with a slider (15). The rotating shafts (14) and the sliders (15) are rotatably connected. The protective shell (12) is equipped with a first spring (22). The two ends of the first spring (22) elastically abut against the top of the inner side wall of the protective shell (12) and the slider (15).
4. The rice stacking equipment according to claim 1, characterized in that, The roller (6) is a hollow structure, and a rubber pad is fitted on the outer side wall of the roller (6).
5. The rice stacking equipment according to claim 1, characterized in that, The frame (1) is equipped with baffles (16) on both sides. Support shafts (17) are installed on the side walls of the baffles (16). The support shafts (17) are arranged in an array on the baffles (16). A guide plate (18) is installed on the end of the support shafts (17) on one side of the baffles (16) near the conveyor belt (2).
6. A rice stacking device according to claim 5, characterized in that, The support shaft (17) and the baffle (16) are connected by a thread.
7. A rice stacking device according to claim 5, characterized in that, A vibration motor (19) is installed on the side of the guide plate (18) that is connected to the support shaft (17).
8. A rice stacking device according to claim 7, characterized in that, The support shaft (17) has a movable groove at one end near the guide plate (18). A telescopic rod (20) is installed on one side of the guide plate (18) near the support shaft (17). The telescopic rod (20) is slidably installed in the movable groove. One end of a second spring (21) is fitted on one end of the support shaft (17) near the guide plate (18). The other end of the second spring (21) is connected to the guide plate (18).
9. A rice stacking device according to claim 8, characterized in that, The end of the support shaft (17) is fitted with a limiting plate to prevent the telescopic rod (20) from leaving the movable slot.