Automatic weighing device for coarse grain by-products
The design of the automatic weighing device solves the problems of low efficiency and large errors in manual operation during the weighing of grain by-products, and realizes efficient and accurate automatic weighing, thereby improving the adaptability and intelligence of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JIEXUN OPTOELECTRONICS TECH
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-23
AI Technical Summary
The existing methods for weighing by-products of miscellaneous grains rely on manual operation, which is labor-intensive and inefficient. In cases of low density and slow discharge speed, weighing delays and errors are likely to occur. Traditional equipment has a complex structure, high cost, poor adaptability, and is easily affected by uneven ground or horizontal deviations of the equipment.
The automatic weighing device includes a weighing frame, support base, buffer hopper, pneumatic telescopic rod and hook structure. Combined with multi-point weighing sensors and tilt sensors, it realizes automatic hooking and stabilization of bags. Combined with upper and lower material level sensors and pneumatic valves, it realizes automatic material control. Support feet are used to adjust the level of the equipment. The overall structure is simple and efficient.
It improves weighing accuracy and efficiency, reduces the frequency of manual operation, ensures the stability and accuracy of the weighing process, is highly adaptable, has good practicality and intelligence, and reduces errors and manual intervention.
Smart Images
Figure CN224393020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain processing equipment technology, specifically an automatic weighing device for miscellaneous grain by-products. Background Technology
[0002] Currently, a large number of by-products are generated during the processing of grains, such as husks, peels, and root residues. These by-products are usually recycled as feed ingredients for livestock and poultry. For ease of subsequent transportation and measurement, these by-products need to be weighed in ton bags after discharge. Existing by-product weighing methods mainly rely on manual operation. Workers must place empty bags under the discharge port, fill them with material, and then move them to an electronic scale for weighing, recording the data via paper or electronic means. This process is not only labor-intensive and inefficient, but also requires workers to wait for extended periods, especially when the by-product density is low and the discharge speed is slow, which can easily lead to weighing delays and material spillage.
[0003] To improve automation, some companies have attempted to use intelligent weighing and packaging lines to achieve automatic weighing and handling. However, such equipment is typically complex in structure and expensive, and often requires multiple production lines to accommodate various by-products, resulting in low actual usage frequency and utilization. Furthermore, traditional electronic weighing devices mostly use single-point or multi-point load cells for gravity acquisition, but uneven ground or device level deviations can easily lead to inaccurate weighing data, affecting bagging quality. Especially when bags are not effectively secured, tilting or sinking of the bags can cause weighing errors or even material spillage. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide an automatic weighing device for miscellaneous grain by-products, aiming to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An automatic weighing device for miscellaneous grain by-products includes a weighing frame, with several weighing sensors at the bottom of the weighing frame, a support base at the top of the weighing frame, and several support rods connected to the surface of the support base. A buffer hopper is provided inside the support base, and a feed flange and a discharge flange are respectively provided at the upper and lower ends of the buffer hopper.
[0007] The upper material level sensor is installed at the inner top of the support base, the lower material level sensor is installed at the inner bottom of the support base, and a pneumatic valve is installed inside the lower material flange.
[0008] The weighing frame is equipped with pneumatic telescopic rods and support rods on both sides. The telescopic end of the pneumatic telescopic rod is hinged to a hinged connecting rod. One end of the support rod is hinged to a hook, and the hook and the hinged connecting rod are hinged together.
[0009] Furthermore, both the upper and lower material level sensors are rotary paddle sensors.
[0010] Furthermore, a tilt sensor is provided in the central region of the lower surface of the weighing frame.
[0011] Furthermore, an alarm light is installed on the surface of the support base.
[0012] Furthermore, a control cabinet is mounted on the surface of the support base, and a touch screen all-in-one machine is provided on the surface of the control cabinet.
[0013] Furthermore, the control cabinet is equipped with a USB connector, a power button, and an emergency stop button on its side.
[0014] Furthermore, the surface of the buffer hopper is provided with an observation port.
[0015] Furthermore, the lower surface of the weighing sensor is equipped with supporting feet.
[0016] The automatic weighing device for miscellaneous grain by-products provided by this utility model has the following beneficial effects:
[0017] This invention features a pneumatic telescopic rod and hook structure inside the weighing frame, enabling automatic hooking and release of bag handles to prevent bag tilting or collapse and ensure stable weighing. Multiple weighing sensors at the bottom of the frame improve weighing accuracy and, combined with support feet, allow for horizontal adjustment. A buffer hopper inside the support base, along with upper and lower material level sensors and pneumatic valves, enables automatic material control, preventing overfeeding or material shortage. The overall structure is simple, highly automated, significantly improving weighing efficiency and accuracy, reducing manual operation frequency, and demonstrating excellent adaptability and practicality. Attached Figure Description
[0018] Figure 1 This is a front structural diagram of an automatic weighing device for miscellaneous grain by-products.
[0019] Figure 2 This is a side view of an automatic weighing device for grain by-products.
[0020] Figure 3 An automatic weighing device for by-products of grains Figure 1 Enlarged view of point A.
[0021] Figure 4This is a flowchart illustrating the use of an automatic weighing device for grain by-products.
[0022] In the diagram: 1. Support base; 2. Buffer hopper; 3. Weighing frame; 4. Support rod; 5. Loading level sensor; 6. Feed flange; 7. Alarm light; 8. Observation port; 9. Pneumatic valve; 10. Discharge flange; 11. Discharge level sensor; 12. Control cabinet; 13. Touch screen all-in-one machine; 14. Bag; 15. Tilt sensor; 16. Weighing sensor; 17. Support foot; 18. USB connector; 19. Power button; 20. Emergency stop button; 21. Pneumatic telescopic rod; 22. Hinge connecting rod; 23. Hook; 24. Support rod; 25. Handle. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0025] like Figures 1-3 As shown in the figure, an automatic weighing device for miscellaneous grain by-products provided in this utility model embodiment includes a weighing frame 3, a bag 14 is placed inside the weighing frame 3, and a handle 25 is provided on both sides of the bag 14.
[0026] The weighing frame 3 has several weighing sensors 16 at its bottom and a support base 1 at its top. Several support rods 4 are connected to the surface of the support base 1. The support base 1 has a buffer hopper 2 inside, and the upper and lower ends of the buffer hopper 2 are respectively provided with a feed flange 6 and a discharge flange 10.
[0027] A loading level sensor 5 is installed at the top inner side of the support base 1, and a unloading level sensor 11 is installed at the bottom inner side of the support base 1. A pneumatic valve 9 is installed inside the unloading flange 10. Both the loading level sensor 5 and the unloading level sensor 11 are rotary paddle sensors.
[0028] The weighing frame 3 is equipped with a pneumatic telescopic rod 21 and a support rod 24 on both sides inside. The telescopic end of the pneumatic telescopic rod 21 is hinged to a hinged connecting rod 22. One end of the support rod 24 is hinged to a hook 23, and the hook 23 and the hinged connecting rod 22 are hinged together.
[0029] In one embodiment of this utility model, the worker first places the bag 14 inside the weighing frame 3, with the handles 25 of the bag 14 located below the pneumatic telescopic rods 21 and support rods 24 on both sides of the weighing frame 3. After the control system is activated, the pneumatic telescopic rods 21 drive the hinged connecting rods 22 to extend, causing the hinged connecting rods 22 and the hooks 23 to move in tandem, hooking the handles 25 of the bag 14 onto the hooks 23, ensuring that the bag 14 maintains a stable vertical posture during the weighing process and preventing tilting or collapse.
[0030] During the feeding process, the grain by-products enter the buffer silo 2 through the feed flange 6. The material gradually accumulates, and when it rises to the sensing height of the upper material level sensor 5, the blades stop rotating due to the rotary paddle structure of the sensor, sending a full material signal to control and stop feeding, preventing overflow. During the unloading stage, the control system activates the pneumatic valve 9, and the material in the buffer silo 2 is released into the bag 14 through the unloading flange 10. At the same time, several weighing sensors 16 at the bottom of the weighing frame 3 monitor the weight of the bag 14 in real time.
[0031] As the material in bag 14 gradually descends to the level in buffer hopper 2, if it reaches the position of the blade of the discharge level sensor 11, the blade of the rotary paddle sensor begins to rotate, sending an empty material signal. The control system can then determine whether to replenish the buffer material in advance. When the weighing sensor 16 detects that the material in bag 14 has reached the preset weight, the system automatically closes the pneumatic valve 9, stops discharging, and controls the pneumatic telescopic rod 21 to retract, causing the hook 23 to release the handle 25 of bag 14, completing one weighing process.
[0032] This embodiment achieves stable placement and accurate weighing of the bag 14 by setting up a cooperative structure between the weighing frame 3 and the support base 1. The upper and lower level sensors 5 and 11 establish high and low limit level control to ensure that the material in the buffer hopper 2 remains at an appropriate level, avoiding material interruption or overfeeding during continuous weighing. The linkage structure between the pneumatic telescopic rod 21 and the hook 23 ensures the tension and vertical stability of the bag 14 during the weighing process, preventing weighing errors caused by bag deformation. Multiple weighing sensors 16 are distributed at the bottom of the weighing frame 3, effectively improving weighing accuracy and anti-interference capability. The overall structure has a high degree of automation, stable operation, and convenient operation, making it suitable for accurate measurement and data acquisition in the weighing of grain by-products.
[0033] In this embodiment, an inclination sensor 15 is provided in the central area of the lower surface of the weighing frame 3, and a support foot 17 is installed on the lower surface of the weighing sensor 16, which has the function of lifting up and down.
[0034] The tilt sensor 15 is located in the center area of the lower surface of the weighing frame 3 to monitor the overall horizontal status of the weighing frame 3 in real time. The support feet 17 are installed on the lower surface of the load cell 16 and have the function of lifting up and down, which are used to finely adjust the support height of the weighing frame 3.
[0035] The tilt sensor 15 is used to identify whether the weighing frame 3 is level. When the tilt angle exceeds the allowable range, it can prompt the operator to adjust the support feet 17. By adjusting the height of each support foot 17, the tilt of the weighing frame 3 can be accurately corrected, thereby ensuring that the load cell 16 works under balanced force and avoiding weighing errors caused by uneven ground, misaligned installation, or equipment shaking.
[0036] The tilt sensor 15, used in conjunction with the supporting feet 17, effectively improves the stability and accuracy of weighing data, ensuring that the entire weighing process is conducted on the basis of structural level and sensor balance, thus providing a reliable data foundation for the weighing of grain by-products.
[0037] In this embodiment, an alarm light 7 is installed on the surface of the support base 1. It is used to indicate different working states of the device during operation.
[0038] Alarm light 7 is electrically connected to the control system and emits different colored light signals according to the system's operating status during automatic weighing. For example, when the device is in normal weighing mode, alarm light 7 illuminates green; when weighing is complete or bag 14 reaches the preset weight, alarm light 7 illuminates red and is accompanied by an audible and visual prompt, reminding staff to replace the bag in time; in case of abnormalities such as excessive tilt, sensor failure, or failure of pneumatic actuators to reset, alarm light 7 may illuminate yellow and flash continuously to prompt for inspection.
[0039] The installation of alarm light 7 significantly improves the intuitiveness and safety of on-site operation, enabling staff to quickly identify the current equipment status and respond from a distance, avoiding missed operation points or weighing errors due to misoperation, and enhancing the overall intelligence and controllability of the device's operation. In this embodiment, a control cabinet 12 is mounted on the surface of the support base 1, and a touch screen all-in-one machine 13 is provided on the surface of the control cabinet 12. A USB connector 18, a power button 19, and an emergency stop button 20 are provided on the side of the control cabinet 12.
[0040] In this embodiment, the surface of the buffer hopper 2 is provided with an observation port 8, which is used to facilitate the staff to directly observe the material status in the buffer hopper 2 during equipment operation.
[0041] The observation port 8 is typically made of a transparent material, such as acrylic sheet, and is fixed to the opening of the buffer hopper 2 by a sealed structure, providing good pressure resistance and sealing performance. Through the observation port 8, staff can directly observe the current material storage height, flow, and any abnormalities such as clumping or jamming inside the buffer hopper 2, allowing for visual inspection of the material status without disassembly or stopping the equipment.
[0042] The installation of observation port 8 improves visibility and inspection efficiency during equipment operation, helps to detect abnormalities in a timely manner, reduces the risk of misoperation, ensures the continuity and stability of the weighing process, and enhances the practicality and ease of maintenance of the device.
[0043] like Figure 4 As shown, in one embodiment of this utility model, the specific weighing process is as follows:
[0044] When the "automatic feeding" command is activated on the touch screen all-in-one machine 13, the system first checks the status of the pneumatic hook 23. If the pneumatic hook 23 fails to fully open or close, the system will alert the operator via alarm light 7 to check the equipment and reset it. After confirming that the pneumatic hook 23 is in the open state, the system controls its movement to hook the handle 25 of the bag 14 onto the hook 23.
[0045] Before activating pneumatic valve 9, the system checks its current status. If pneumatic valve 9 is not closed, the system will also alert personnel to check and reset the equipment via alarm light 7.
[0046] After confirming that the pneumatic hook 23 and pneumatic valve 9 are both functioning normally, the system reads the real-time weight data transmitted by the load cell 16 and, in conjunction with the data fed back by the tilt sensor 15, determines whether the current state of the bag 14 meets the weighing conditions. The judgment is based on whether the current weight value is below the lower limit threshold X0 and whether the tilt angle is within the allowable error angle range α. If the bag 14 is not placed in the correct position, the weight is not zeroed, or the tilt exceeds the limit, the alarm light 7 illuminates and a warning is issued, reminding personnel to check whether the bag 14 contains residual material or is not in place.
[0047] If the weighing conditions meet the set requirements, the system performs a tare operation and clears the current weight data. Then, it controls the pneumatic valve 9 to open, allowing material in the buffer hopper 2 to enter the bag 14 through the discharge flange 10. The system monitors the weight changes fed back by the weighing sensor 16 in real time. When the weight reaches the preset target weight M1, it automatically closes the pneumatic valve 9 and simultaneously closes the pneumatic hook 23 to release the bag 14.
[0048] After the material is fed, the system delays for several seconds to ensure the weighing data is stable, and records the current weighing time, final weighing weight, and target weight. This information is automatically uploaded to the MySQL database for aggregation, and reports are generated on the touchscreen all-in-one machine 13 for export and viewing.
[0049] This process automates and intelligently controls the entire process of bag 14 from preparation to final weighing, offering several significant advantages:
[0050] First, the status judgment step in the process ensures that the equipment performs actions in the correct state by monitoring the real-time status of the pneumatic hook 23 and the pneumatic valve 9, avoiding misoperation and mechanical interference, and improving the safety and stability of the system operation.
[0051] Secondly, by using the linkage judgment of the tilt sensor 15 and the weighing sensor 16, it is possible to effectively identify whether the bag 14 is empty, whether it is centered, and whether it is tilted, thereby eliminating error factors and ensuring that the weighing results are accurate and reliable.
[0052] Third, through peeling and automatic weighing control, the entire process from the start of feeding to reaching the target weight is automated, without the need for manual intervention, effectively saving manpower and reducing operational intensity.
[0053] Fourth, after weighing is completed, the bag 14 is automatically released and stabilized after a delay to ensure that the final recorded data is free of fluctuations, thus guaranteeing the accuracy and consistency of the weighing data.
[0054] Fifth, information such as weighing time, weight, and target value is automatically uploaded to the MySQL database and generated into reports on the touch screen all-in-one machine 13, replacing manual recording, avoiding omissions, errors, and data loss, improving data integrity and traceability, and facilitating later statistics and management.
[0055] In summary, this process has the combined advantages of high safety, high precision, high efficiency and strong data controllability, which significantly improves the automation level and management quality of weighing operations for miscellaneous grain by-products.
[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic weighing device for miscellaneous grain by-products, comprising a weighing frame (3), wherein a plurality of weighing sensors (16) are disposed at the bottom of the weighing frame (3), characterized in that, The weighing frame (3) is provided with a support base (1) at the top, and a number of support rods (4) are connected to the surface of the support base (1). The support base (1) is provided with a buffer hopper (2) inside, and the upper and lower ends of the buffer hopper (2) are respectively provided with a feed flange (6) and a discharge flange (10). The upper material level sensor (5) is provided on the inner top of the support base (1), the lower material level sensor (11) is provided on the inner bottom of the support base (1), and a pneumatic valve (9) is installed inside the lower material flange (10). The weighing frame (3) is equipped with a pneumatic telescopic rod (21) and a support rod (24) on both sides inside. The telescopic end of the pneumatic telescopic rod (21) is hinged to a hinged connecting rod (22). One end of the support rod (24) is hinged to a hook (23), and the hook (23) and the hinged connecting rod (22) are hinged together.
2. An automatic weighing device for miscellaneous grain by-products according to claim 1, characterized in that, Both the upper material level sensor (5) and the lower material level sensor (11) are rotary paddle sensors.
3. An automatic weighing device for miscellaneous grain by-products according to claim 1, characterized in that, An inclination sensor (15) is provided in the central region of the lower surface of the weighing frame (3).
4. An automatic weighing device for miscellaneous grain by-products according to claim 1, characterized in that, An alarm light (7) is installed on the surface of the support base (1).
5. An automatic weighing device for miscellaneous grain by-products according to claim 1, characterized in that, The support base (1) is equipped with a control cabinet (12), and the control cabinet (12) is equipped with a touch screen all-in-one machine (13).
6. An automatic weighing device for miscellaneous grain by-products according to claim 5, characterized in that, The control cabinet (12) is equipped with a USB connector (18), a power button (19), and an emergency stop button (20) on its side.
7. An automatic weighing device for miscellaneous grain by-products according to claim 1, characterized in that, The surface of the buffer hopper (2) is provided with an observation port (8).
8. An automatic weighing device for miscellaneous grain by-products according to claim 1, characterized in that, The lower surface of the weighing sensor (16) is fitted with a support foot (17).