A stem online real-time weighing device
Patent Information
- Application Number
- CN202522647849.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-15
AI Technical Summary
现有人工称重的方式存在以下几个方面的缺点：一方面，人工称取梗料重量的方式效率低下，面对车间内众多的设备，靠人力逐台逐次的称取梗料重量会消耗大量的时间和人力；另一方面，人工称重的方式无法做到实时反馈，每一次称取之间的时间间隔大，难以形成有效的数据量，无论是指导调节风分气流大小，还是进一步研究含梗率同烟支质量的关系都缺乏足够的数据支撑；最后，人工称取的精度不高，在人工取样过程中，由于设备结构的原因，取样空间较小，人工取样时难免会有部分的梗料飞出，没有完全落入取样的密封袋内，影响取样结果的准确性
[0016]1、本实用新型的梗签在线实时称重装置，实现了梗料称重的自动化与连续化：通过集成称重传感器与定制化机械结构，替代传统人工取样称重方式，无需人工干预即可实现对剔除梗料的实时、连续在线称重，大幅提升数据采集效率。提升了数据时效性与可用性：克服了人工称重周期长、数据稀疏的问题，能够高频获取回梗量数据，为生产过程中的工艺参数动态调控（如风分气流调节）提供及时、可靠的依据，助力实现精细化质量管理。提高了称重精度与样本完整性：装置采用封闭式结构设计（如接料导板、梗丝防溅盖板、防尘罩等），有效防止烟梗在传输和称重过程中飞溅逸散，确保称重样本的完整性，显著提升测量结果的准确性与重复性。增强了系统适应性与可维护性：关键部件（如传感器垫块、传感器支架、料斗支架）采用腰形孔设计，支持前后、角度调节，便于现场安装校准；活动盖板可翻转设计，方便观察落料状态与日常清洁维护，提升装置的工程实用性。结构紧凑，集成度高，利于工业化应用：整体装置模块化设计，可直接加装于现有卷烟机原机梗签筛分装置出料口位置，不改变原机主体结构，改造成本低，适用于ZJ118等多种主流机型，具备良好的推广性。
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Figure CN224906100U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tobacco technology, specifically relating to an online real-time weighing device for cigarette stems separated from cigarette machines. Background Technology
[0002] In modern cigarette production, tobacco forming, as a crucial pre-process step in cigarette rolling, plays a vital role in transforming loose tobacco shreds into shaped tobacco bundles. This process utilizes multiple techniques, including a pneumatic conveying system, limited tobacco supply, impurity removal, and airflow sorting, to gradually convert the pneumatically fed tobacco shreds into high-quality tobacco bundles with uniform density and stable structure. The stem content within the tobacco shreds directly affects the balance between cigarette quality and tobacco consumption. Excessive stem content can cause cigarettes to puncture, while insufficient stem content will result in the removal of some tobacco during the airflow sorting stage, increasing tobacco consumption. To ensure that the final tobacco bundle meets the required weight stability and stem content standards, different models of cigarette rolling equipment typically employ an optimized design that combines a multi-stage airflow system with a mechanical stem sieving device. Taking our factory's main model, the ZJ118 cigarette rolling machine, as an example, it innovatively adopts a three-stage progressive separation mechanism that combines a built-in primary airflow system, a secondary airflow system, and the original independent stem sieving device. This graded processing design concept, through a tiered purification method, can remove impurities and stems from tobacco to the maximum extent, significantly reducing the raw material loss rate during the production process. This provides a high-quality raw material base that meets process standards for subsequent rolling and forming processes, ensuring the quality stability and consistency of the final cigarette product.
[0003] In the production process, to determine the stem content of the finished cigarettes, the final discarded stems need to be weighed. This weighing data can be converted into the stem content of the finished cigarettes. This data can be used to adjust the rejection rate of each stage of the air separation system in a timely manner to meet the balance requirements of tobacco consumption and cigarette quality. Furthermore, it can be used to study the correlation between stem content and cigarette quality, thereby improving quality control capabilities.
[0004] Currently, the weighing of cigarette stems in cigarette machines is mainly done manually. Process personnel collect the stems removed within a unit of time using sealed bags, according to the process standards of different brands and models. The weight of the stems after removing the sealed bag is then weighed, and the stem content in the tobacco is calculated by combining this with the equipment's operating speed and brand. This manual weighing method has several drawbacks: First, it is inefficient. Weighing the stems manually on each of the numerous machines in the workshop consumes a significant amount of time and manpower. Second, it lacks real-time feedback. The large time intervals between weighings make it difficult to generate effective data, which is insufficient for guiding adjustments to airflow or further research on the relationship between stem content and cigarette quality. Finally, the accuracy of manual weighing is low. Due to the limited sampling space caused by the equipment structure, some stems inevitably fly out during manual sampling, failing to fall completely into the sealed bag and affecting the accuracy of the sampling results.
[0005] This utility model is proposed for this purpose. Utility Model Content
[0006] This utility model discloses an online real-time weighing device and method for the stems and twigs separated from a cigarette machine.
[0007] The technical solution of this utility model is as follows:
[0008] The first aspect of this utility model discloses an online real-time weighing device for stems, which includes: a stem feeding component, a weighing sensor 4, and a weighing sensor auxiliary component; the weighing sensor 4 is a stamping type or impulse sensor, which is rectangular in shape.
[0009] Preferably, the stem feeding component includes: a discharge port frame 1, a hopper support 6, a load-bearing plate 7, a receiving funnel 8, a receiving guide plate 9, a splash guard 10, and a movable cover plate 11; the discharge port frame 1 is a vertical cover plate with a square discharge port 101 at the top and a circular return port 102 at the bottom; the receiving guide plate 9 is arranged at an angle, with its upper end positioned below the discharge port 101 and its lower end positioned above the load-bearing plate 7, serving to guide the tobacco stem material to the load-bearing surface of the load-bearing plate 7 when the tobacco stem material is discharged; the load-bearing plate 7 is rectangular, with guard plates 71 on its front, left, and right sides (the guard plates 71 prevent the tobacco stem material from flying out), and no guard plate 71 on its rear side, which is located at the opening of the receiving funnel 8; the angle between the load-bearing surface of the load-bearing plate 7 and the horizontal plane is between 5° and 85°, and a hopper support is fixedly installed on the bottom wall of the load-bearing plate 7. The frame 6 is generally fixed by bolts; the splash guard 10 is arranged around the receiving guide plate 9 and is generally fixed by bolts to the upper inclined side of the square outlet of the discharge port frame 1. Its function is to prevent tobacco stems from splashing out from above during the discharge process; the movable cover 11 is arranged between the splash guard 10 and the load-bearing plate 7. The movable cover 11 is a trapezoidal plate and is fixed to the splash guard 10 by hinges, which facilitates the adjustment of its covering length and allows for easy inspection of the material discharge situation by flipping it over; the discharge port frame 1 is the rear movable cover on the original stem screening device. The discharge port frame 1 has a square discharge port 101 and a circular return port 102. The tobacco stems after secondary sorting are conveyed into the original stem screening device for further sorting. The output tobacco stems are output from the square port and sent back to the circular return port for centralized processing after passing through the stem weighing device.
[0010] Preferably, the auxiliary components of the weighing sensor include: a mounting bracket 2, a sensor pad 3, and a sensor support 5; the mounting bracket 2 is fixedly installed on the upper part of the return port 102 of the discharge port frame 1, and the upper surface of the mounting bracket 2 is horizontal. The mounting support 2 is generally fixed to the discharge port frame 1 by bolts, and its function is to provide an installation platform for the receiving funnel 8 and the sensor pad 3; the weighing sensor 4 is arranged on the upper surface of the mounting bracket 2 through the sensor pad 3. The sensor pad 3 is generally fixed to the oblong hole of the mounting bracket 2 by bolts and can move back and forth. Its function is to allow sufficient room for movement when the weighing sensor 4 deforms in the vertical direction, so as not to affect the accuracy of the measurement; the weighing sensor 4 is generally fixed to the sensor pad 3 by bolts. The core component of the weighing sensor 4 is an elastic body, which is designed with a specific structure to ensure that predictable small elastic deformation occurs when subjected to force. When the weight of the object or external force acts on the sensor, the elastic body undergoes tensile deformation along the direction of gravity, and the degree of deformation is positively proportional to the external force. The weighing system is designed to achieve the weighing function. The sensor bracket 5 is inverted Π shape and is generally fixed to the upper surface of the weighing sensor 4 with bolts. First oblong holes 51 are provided on its bottom wall and both leg walls. The hopper bracket 6 is Π shape and has second oblong holes 61 on its top wall and both leg walls. The sensor bracket 5 and the hopper bracket 6 are fixed together with bolts using the first oblong holes 51 and second oblong holes 61 on their respective leg walls. The sensor bracket 5 and the hopper bracket 6 can be identical in size and shape, or they can be different. After the sensor bracket 5 and the hopper bracket 6 are fixed through their respective oblong holes, the angle between the bearing surface of the load-bearing plate 7 and the horizontal plane can be adjusted between 5° and 85°, so that the bearing surface of the load-bearing plate 7 is inclined to the opening of the receiving funnel 8, ensuring that the tobacco stems enter the opening of the receiving funnel 8 from the rear side of the load-bearing plate 7 after impacting the bearing surface. The receiving hopper 8 is a funnel-shaped receiving box, which is fixed in the funnel placement opening 22 of the mounting bracket 2. Its function is to transport the weighed tobacco stems to the discharge port 102 for centralized processing.
[0011] Preferably, there is a circular opening on the middle wall of the end of the frame 1 near the discharge port of the mounting support 2, which is a funnel placement opening 22; the lower part of the receiving funnel 8 is placed in the funnel placement opening 22; there is an oblong hole on the middle wall of the end of the frame 1 far from the discharge port of the mounting support 2, which is a third oblong hole 21, and the sensor pad 3 is fixedly installed on the third oblong hole 21.
[0012] Preferably, a dust cover 12 is arranged around the weighing sensor 4, which is generally fixed to the mounting bracket 2 by bolts. It is a half-enclosed shell that provides dust protection for the weighing sensor 4.
[0013] The second aspect of this utility model discloses a method for online real-time weighing of stem tags, using the aforementioned online real-time weighing device for stem tags, comprising the following steps:
[0014] The stems separated from the cigarette machine enter from the discharge port 101, fall onto the surface of the receiving guide plate 9, and then slide down the inclined surface of the receiving guide plate 9 onto the bearing surface of the load-bearing plate 7. The impact force of the falling stems is transmitted to the weighing sensor 4 through the hopper support 6 and the sensor support 5. The elastic body of the weighing sensor 4 undergoes tensile deformation along the direction of the impact force, and the degree of deformation is proportional to the impact force, thereby realizing real-time weighing of the stems. After weighing, the stems slide down the inclined bearing surface of the load-bearing plate 7 through the rear side into the receiving funnel 8, and then are conveyed to the return port 102 for centralized processing.
[0015] The beneficial effects of this utility model are:
[0016] 1. This utility model's online real-time weighing device for tobacco stems achieves automation and continuous weighing of tobacco stems: by integrating weighing sensors and customized mechanical structures, it replaces the traditional manual sampling and weighing method, enabling real-time and continuous online weighing of discarded stems without manual intervention, significantly improving data acquisition efficiency. It also enhances data timeliness and availability: overcoming the problems of long manual weighing cycles and sparse data, it can acquire high-frequency stem return data, providing timely and reliable basis for dynamic control of process parameters in the production process (such as airflow adjustment), contributing to refined quality management. Furthermore, it improves weighing accuracy and sample integrity: the device adopts a closed structural design (such as a receiving guide plate, stem splash guard, dust cover, etc.), effectively preventing tobacco stems from splashing and escaping during transmission and weighing, ensuring the integrity of the weighed sample, and significantly improving the accuracy and repeatability of measurement results. Enhanced system adaptability and maintainability: Key components (such as sensor pads, sensor brackets, and hopper brackets) feature an oblong hole design, supporting front-to-back and angle adjustments for easy on-site installation and calibration; the movable cover plate has a flip-up design for easy observation of the material discharge status and daily cleaning and maintenance, improving the device's engineering practicality. Compact structure and high integration, conducive to industrial application: The modular design of the overall device allows for direct installation at the discharge port of the existing cigarette machine's stem and skewer screening device without altering the original machine's main structure, resulting in low modification costs. It is suitable for various mainstream models such as the ZJ118 and has good applicability.
[0017] 2. The method for online real-time weighing of tobacco stems using the device of this utility model is a systematic integrated design: The weighing sensor is embedded in the tobacco stem emission path, constructing a closed-loop weighing unit integrating guidance, receiving, weighing, discharge, and protection, achieving accurate weighing without interrupting production. A dynamic weighing method based on impulse sensors: Impulse-type weighing sensors detect the cumulative impact force on the load-bearing plate when tobacco stems fall continuously, converting it into a mass signal, suitable for non-contact dynamic metering scenarios for particulate materials. A multi-degree-of-freedom adjustable mechanical structure: Deformation compensation of the weighing component in the vertical direction and adjustment of the load-bearing plate tilt angle are achieved through a waist-shaped hole connection, ensuring vertical force on the sensor, stable measurement, and adaptability to different equipment installation environments. A closed structure design for splash and dust prevention: A receiving guide plate guides the material flow, a stem splash-proof cover + adjustable extension cover prevents upper part from flying out, and a dust cover protects the sensor, forming a multi-layered physical barrier to ensure weighing accuracy. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the stem separation and weighing device of this utility model.
[0019] Figure 2 This is an exploded view of the stem separation and weighing device of this utility model.
[0020] Figure 3 This is a schematic diagram of the mounting support structure of this utility model.
[0021] Figure 4 This is a schematic diagram of the sensor bracket structure of this utility model.
[0022] Figure 5 This is a schematic diagram of the hopper support structure of this utility model.
[0023] Figure 6 This is a schematic diagram of the material receiving guide plate structure of this utility model.
[0024] Figure 7 This is a schematic diagram of the receiving funnel structure of this utility model.
[0025] Figure 8 This is a schematic diagram of the structure of the stem-splash-proof cover of this utility model.
[0026] Figure 9 This is a schematic diagram of the dust cover structure of this utility model.
[0027] The attached diagram is labeled as follows: 1. Discharge port frame; 101. Discharge port; 102. Return port; 2. Mounting support; 21. Third oblong hole; 22. Funnel placement port; 3. Sensor pad; 4. Weighing sensor; 5. Sensor bracket; 51. First oblong hole; 6. Hopper bracket; 61. Second oblong hole; 7. Load-bearing plate; 71. Protective plate; 8. Receiving funnel; 9. Receiving guide plate; 10. Splash guard plate; 11. Movable cover plate; 12. Dust cover. Detailed Implementation
[0028] 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. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 simplifying the description, and do not indicate or imply that the device 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.
[0030] Furthermore, the terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0033] like Figure 1-9As shown, this utility model discloses an online real-time weighing device for stalks, comprising: a stalk feeding component, a weighing sensor 4, and auxiliary components for the weighing sensor; the weighing sensor 4 is a stamping or impulse sensor, and is rectangular in shape. The weighing sensor 4 in this embodiment was purchased from the market and is model AT8510.
[0034] The tobacco stem feeding component includes: a discharge port frame 1, a hopper support 6, a load-bearing plate 7, a receiving funnel 8, a receiving guide plate 9, a splash guard 10, and a movable cover plate 11. The discharge port frame 1 is a vertical cover plate with a square discharge port 101 at the top and a circular return port 102 at the bottom. The receiving guide plate 9 is arranged at an angle, with its upper end positioned below the discharge port 101 and its lower end positioned above the load-bearing plate 7. Its function is to guide the tobacco stem material to the load-bearing surface of the load-bearing plate 7 when the tobacco stem material is discharged. The load-bearing plate 7 is rectangular, with guard plates 71 on its front, left, and right sides (the guard plates 71 prevent the tobacco stem material from flying out). Its rear side has no guard plate 71 and is located at the opening of the receiving funnel 8. The angle between the load-bearing surface of the load-bearing plate 7 and the horizontal plane is between 5° and 85°. The hopper support is fixedly installed on the bottom wall of the load-bearing plate 7. The frame 6 is generally fixed by bolts; the splash guard 10 is arranged around the receiving guide plate 9 and is generally fixed by bolts to the upper inclined side of the square outlet of the discharge port frame 1. Its function is to prevent tobacco stems from splashing out from above during the discharge process; the movable cover 11 is arranged between the splash guard 10 and the load-bearing plate 7. The movable cover 11 is a trapezoidal plate and is fixed to the splash guard 10 by hinges, which facilitates the adjustment of its covering length and allows for easy inspection of the material discharge situation by flipping it over; the discharge port frame 1 is the rear movable cover on the original stem screening device. The discharge port frame 1 has a square discharge port 101 and a circular return port 102. The tobacco stems after secondary sorting are conveyed into the original stem screening device for further sorting. The output tobacco stems are output from the square port and sent back to the circular return port for centralized processing after passing through the stem weighing device.
[0035] The weighing sensor's auxiliary components include: a mounting bracket 2, a sensor pad 3, and a sensor support 5; such as Figure 1 and Figure 3As shown, the mounting bracket 2 is fixedly installed on the upper part of the return port 102 of the discharge port frame 1. The upper surface of the mounting bracket 2 is horizontal. The mounting bracket 2 is generally fixed to the discharge port frame 1 with bolts. Its function is to provide an installation platform for the receiving funnel 8 and the sensor pad 3. The load cell 4 is arranged on the upper surface of the mounting bracket 2 through the sensor pad 3. The sensor pad 3 is generally fixed to the oblong hole of the mounting bracket 2 with bolts and can move back and forth. Its function is to allow sufficient room for movement when the load cell 4 deforms in the vertical direction, so as not to affect the accuracy of the measurement. The load cell 4 is generally fixed to the sensor pad 3 with bolts. The core component of the load cell 4 is an elastic body, which is designed with a specific structure to ensure predictable force under stress. The sensor utilizes a micro-elastic deformation mechanism. When the weight of an object or an external force is applied to the sensor, the elastic body undergoes tensile deformation along the direction of gravity, and the degree of deformation is proportional to the applied external force, thus achieving the weighing function. In this embodiment, the weighing sensor 4 is a commercially available AT8510 weighing sensor. The sensor bracket 5 is inverted Π-shaped and is generally fixed to the upper surface of the weighing sensor 4 with bolts. First oblong holes 51 are provided on its bottom wall and both leg walls. The hopper bracket 6 is Π-shaped, with second oblong holes 61 provided on its top wall and both leg walls. The sensor bracket 5 and the hopper bracket 6 are fixed together using bolts through the first oblong holes 51 and second oblong holes 61 on their respective leg walls. The sensor bracket 5 and the hopper bracket 6 can be identical in size and shape, or they can be different. Figure 4 and Figure 5 As shown; after the sensor bracket 5 and the hopper bracket 6 are fixed through their respective waist-shaped holes, the angle between the bearing surface of the load-bearing plate 7 and the horizontal plane can be adjusted between 5° and 85°, so that the bearing surface of the load-bearing plate 7 is inclined to the opening of the receiving funnel 8, ensuring that the tobacco stems enter the opening of the receiving funnel 8 from the rear side of the load-bearing plate 7 after impacting the bearing surface; the receiving hopper 8 is a funnel-shaped receiving box, fixed in the funnel placement opening 22 of the mounting bracket 2, and its function is to transport the weighed tobacco stems to the discharge port 102 for centralized processing.
[0036] like Figure 2 and Figure 3 As shown, there is a circular opening on the middle wall of the end of the frame 1 near the discharge port of the mounting support 2, which is a funnel placement opening 22; the lower part of the receiving funnel 8 is placed in the funnel placement opening 22; there is an oblong hole on the middle wall of the end of the frame 1 far from the discharge port of the mounting support 2, which is a third oblong hole 21. The sensor pad 3 is fixedly installed on the third oblong hole 21 and can move back and forth. Its function is to allow the weighing sensor 4 to have enough room to move when it deforms in the vertical direction, so as not to affect the accuracy of the measurement.
[0037] Among them, the weighing sensor 4 is surrounded by a dust cover 12. Figure 9As shown, the dust cover 12 is generally fixed to the mounting bracket 2 by bolts, and is a semi-enclosed housing that provides dust protection for the load cell 4; its upper housing is a part used to fix the sensor bracket 5, see Figure 1 As shown.
[0038] The method for online real-time weighing of stems using the aforementioned stem online real-time weighing device includes the following steps:
[0039] The stems separated from the cigarette machine enter from the discharge port 101, fall onto the surface of the receiving guide plate 9, and then slide down the inclined surface of the receiving guide plate 9 onto the bearing surface of the load-bearing plate 7. The impact force of the falling stems is transmitted to the weighing sensor 4 through the hopper support 6 and the sensor support 5. The elastic body of the weighing sensor 4 undergoes tensile deformation along the direction of the impact force, and the degree of deformation is proportional to the impact force, thereby realizing real-time weighing of the stems. After weighing, the stems slide down the inclined bearing surface of the load-bearing plate 7 through the rear side into the receiving funnel 8, and then are conveyed to the return port 102 for centralized processing.
[0040] This utility model's online real-time weighing device for tobacco stems automates and continuously weighs tobacco stems: by integrating weighing sensors and a customized mechanical structure, it replaces the traditional manual sampling and weighing method, enabling real-time and continuous online weighing of discarded stems without manual intervention, significantly improving data acquisition efficiency. It also enhances data timeliness and availability: overcoming the problems of long manual weighing cycles and sparse data, it can acquire high-frequency stem return data, providing timely and reliable basis for dynamic control of process parameters (such as airflow adjustment) during production, thus contributing to refined quality management. Furthermore, it improves weighing accuracy and sample integrity: the device adopts a closed structural design (such as a receiving guide plate, stem splash guard, and dust cover), effectively preventing tobacco stems from splashing and escaping during transmission and weighing, ensuring the integrity of the weighed sample, and significantly improving the accuracy and repeatability of measurement results. Enhanced system adaptability and maintainability: Key components (such as sensor pads, sensor brackets, and hopper brackets) feature an oblong hole design, supporting front-to-back and angle adjustments for easy on-site installation and calibration; the movable cover plate has a flip-up design for easy observation of the material discharge status and daily cleaning and maintenance, improving the device's engineering practicality. Compact structure and high integration, conducive to industrial application: The modular design of the overall device allows for direct installation at the discharge port of the existing cigarette machine's stem and skewer screening device without altering the original machine's main structure, resulting in low modification costs. It is suitable for various mainstream models such as the ZJ118 and has good applicability.
[0041] The device of this invention provides a method for online real-time weighing of tobacco stems, featuring a systematic integrated design: a weighing sensor is embedded in the tobacco stem emission path, constructing a closed-loop weighing unit integrating guidance, reception, weighing, discharge, and protection, enabling accurate weighing without interrupting production. A dynamic weighing method based on impulse sensors is also included: an impulse-type weighing sensor detects the cumulative impact force on the load-bearing plate as tobacco stems fall continuously, converting it into a mass signal, suitable for non-contact dynamic metering scenarios for particulate materials. A multi-degree-of-freedom adjustable mechanical structure is employed: a waist-shaped hole connection allows for deformation compensation of the weighing component in the vertical direction and adjustment of the load-bearing plate tilt angle, ensuring vertical force on the sensor, stable measurement, and adaptability to different equipment installation environments. A closed structure design for splash and dust prevention is implemented: a receiving guide plate guides the material flow, a stem splash guard with an adjustable extension cover prevents upper part from flying out, and a dust cover protects the sensor, forming a multi-layered physical barrier to ensure weighing accuracy.
[0042] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.
Claims
1. A real-time online weighing device for stem tags, characterized in that, It includes: The feeder assembly, the weighing sensor (4), and the auxiliary components of the weighing sensor; The weighing sensor (4) is a stamping or impulse sensor, which is rectangular in shape; The feed assembly for the feeder includes: a discharge port frame (1), a hopper support (6), a load-bearing plate (7), a receiving funnel (8), a receiving guide plate (9), a splash guard (10), and a movable cover plate (11); the discharge port frame (1) is a vertical cover plate with a square discharge port (101) at the top and a circular return port (102) at the bottom; the receiving guide plate (9) is arranged at an angle, with its upper end positioned at the discharge port (101). The lower part is arranged on the upper part of the load-bearing plate (7); the load-bearing plate (7) is rectangular, with guard plates (71) on its front, left and right sides, and its rear side is arranged at the mouth of the receiving funnel (8). The angle between the load-bearing surface of the load-bearing plate (7) and the horizontal plane is between 5° and 85°. The hopper support (6) is fixedly installed on the bottom wall of the load-bearing plate (7); the splash guard (10) is arranged around the receiving guide plate (9), and the movable cover plate ( 11) Arranged between the splash guard (10) and the load-bearing plate (7); the auxiliary components of the weighing sensor include: mounting bracket (2), sensor pad (3), and sensor bracket (5); the mounting bracket (2) is fixedly installed on the upper part of the return port (102) of the discharge port frame (1), and the upper surface of the mounting bracket (2) is horizontal; the weighing sensor (4) is arranged on the upper surface of the mounting bracket (2) through the sensor pad (3); the sensor bracket (5) is inverted Π shape and is fixedly arranged on the upper surface of the weighing sensor (4), and a first waist-shaped hole (51) is provided on its bottom wall and two leg walls; the hopper bracket (6) is Π shape, and a second waist-shaped hole (61) is provided on its top wall and two leg walls; the sensor bracket (5) and the hopper bracket (6) are fixed by bolts using the first waist-shaped hole (51) and the second waist-shaped hole (61) on their respective leg walls.
2. The online real-time weighing device for stem tags according to claim 1, characterized in that, There is a circular opening on the middle wall of the near-outlet end of the mounting bracket (2) as a funnel placement opening (22); the lower part of the receiving funnel (8) is placed in the funnel placement opening (22); there is a waist-shaped hole on the middle wall of the far-outlet end of the mounting bracket (2) as a third waist-shaped hole (21), and the sensor pad (3) is fixedly installed on the third waist-shaped hole (21).
3. The online real-time weighing device for stem tags according to claim 1, characterized in that, The weighing sensor (4) is surrounded by a dust cover (12).