Automatic on-line weighing machine with protection function

Abstract

The utility model relates to online weighing machine related technical field especially, it is an automatic online weighing machine with protection function, including first support, the one end of first support top is provided with sliding slot, the one side sliding connection of sliding slot surface has screw rod, in the use process, through the article to be weighed is placed in the transmission belt entrance through upstream equipment, drive motor starts, drives the rotation of driving roller, and transmission belt transports the article to the weighing sensor direction with setting speed, and the real -time acquisition weight data of weighing sensor is transmitted to external control system, and manually regulated limit rod reaches the suitable height, through the fixed limit rod of tightening each group screw rod's nut, thereby changes the sliding distance of second support pole, and control system presets overload threshold value, and triggers automatic pause conveyor belt, and the alarm reminds operating personnel through warning light and buzzer, has improved the efficiency of automatic online weighing machine operation greatly.

Description

Technical Field

[0001] This utility model relates to the technical field of online weighing machines, and in particular to an automatic online weighing machine with protective functions. Background Technology

[0002] Automatic online weighing machines, also known as online weight detection machines or dynamic weighing systems, are intelligent devices that integrate sensor technology, mechanical structure design, data processing algorithms, and automated control. They are primarily used for real-time weight measurement of materials or products in continuous motion and are widely used in industries such as food, pharmaceuticals, chemicals, logistics, and packaging. Their core functions include: non-contact, rapid weighing of products during production line operation without stopping the machine; determining product conformity based on preset weight thresholds, rejecting overweight or underweight products; recording weighing data, generating production reports, and supporting quality traceability and process optimization. Therefore, an automatic online weighing machine with protective features is particularly needed.

[0003] However, existing automatic online weighing machines often lack effective anti-collision and anti-fall protection for the conveyor belt and weighing area during use. This not only makes it easy for weighing to be interrupted due to the side slip or rolling of items, but also poses a risk of accidental activation by personnel. At the same time, the overload protection mechanism of traditional automatic online weighing machines is simple, relying only on software threshold alarms and lacking mechanical limit buffer structures. When the load suddenly increases, it cannot physically block the impact force in time, and the probability of sensor failure due to excessive force is relatively high, affecting the operating efficiency of automatic online weighing machines.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN222825120U that discloses an automatic weighing machine. The patent states that "this utility model's automatic weighing machine has three feeding mechanisms. The first feeding mechanism can supply large-particle materials, the second feeding mechanism can supply small-particle materials, and the third feeding mechanism has a turntable on which linear materials are wound. The linear materials are transported by a feeding roller assembly, and a cutting mechanism cuts the linear materials. During weighing, the large and small particles are first balanced to a weight close to the predetermined value, and then the linear materials are discharged for further weight compensation to achieve the final weight requirement, thus realizing automatic weighing with high accuracy and efficiency." While automatic weight compensation is achieved through the three feeding mechanisms (large particles, small particles, and linear materials), and the electronic scale weighs in real time, although the system triggers an alarm and stops feeding when the weighing value exceeds a preset threshold, the lack of mechanical limit or buffer structures and physical limits means the equipment may deform under abnormal loads, leading to a long-term decrease in accuracy.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide an automatic online weighing machine with protective functions to solve the problems mentioned in the background art. In the process of use, the conveyor belt and weighing area of ​​traditional automatic online weighing machines usually lack effective anti-collision and anti-fall protection. Not only is it easy for weighing to be interrupted due to the side slip or rolling of the items, but it may also cause the risk of accidental operation by personnel. At the same time, the overload protection mechanism of traditional automatic online weighing machines is simple, relying only on software threshold alarms and lacking mechanical limit buffer structures. When the load suddenly increases, it cannot physically block the impact force in time, and the probability of sensor failure due to excessive force is high, which affects the operating efficiency of the automatic online weighing machine.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic online weighing machine with protective function, comprising a first support, a sliding groove formed at one end of the upper part of the first support, a threaded rod slidably connected to one side of the surface of the sliding groove, a limit rod fixedly connected to one end of the threaded rod, a weighing sensor fixedly connected to one end of the upper surface of the first support, a fixed rod fixedly connected to the other end of the upper surface of the first support, a second support slidably connected to one side of the surface of the fixed rod, a first support rod fixedly connected to one end of the lower surface of the second support, a second support rod fixedly connected to the other end of the lower surface of the second support, a side plate fixedly connected to one end of the upper surface of the second support, a drive roller bearing connected to one side of the surface of the side plate, a drive motor fixedly connected to the other side of the surface of the side plate, a transmission belt attached to one side of the surface of the drive roller, and a driven roller attached to the inner surface of the transmission belt.

[0008] Preferably, a rubber anti-collision strip is fixedly connected to the outer surface of the transmission belt, and a guardrail is fixedly connected to one end of the upper surface of the side plate.

[0009] Preferably, a warning light is fixedly connected to the other end of the upper surface of the side panel, and a buzzer is fixedly connected to the other end of the upper surface of the side panel.

[0010] Preferably, the limiting rod is slidably connected to the sliding groove, and four sets of fixing rods are provided.

[0011] Preferably, the first support rod is provided in four sets, and the first support rod is attached to the weighing sensor.

[0012] Preferably, the second support rod is provided in four sets, and the output end of the drive motor is fixedly connected to the drive roller.

[0013] Preferably, the driven roller is connected to the side plate bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic online weighing machine with protective function, by setting an adjustable limit rod on the first support, allows manual adjustment of the limit rod to a suitable height according to actual use, thereby changing the sliding distance of the second support rod and indirectly protecting the weighing sensor. When the weight of the measured item exceeds the rated range of the weighing sensor, the second support rod touches the preset limit rod, preventing the weighing sensor from being overstretched or compressed. The control system presets an overload threshold, which automatically stops the conveyor belt when triggered, and issues an alarm through warning lights and a buzzer to remind the operator. At the same time, the guardrail effectively prevents the item from sliding or rolling, which is especially suitable for irregularly shaped materials. The guardrail facilitates real-time observation of the weighing process, reduces the need for manual intervention, lowers labor costs, and greatly improves the operating efficiency of the automatic online weighing machine. Attached Figure Description

[0015] Figure 1 This is a side view of the appearance structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This is a schematic diagram of the interaction between the transmission belt and the rubber anti-collision strip in this utility model;

[0018] Figure 4 This is a schematic diagram of the cooperation structure between the first and second supports of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0020] In the diagram: 1. First support; 2. Sliding groove; 3. Threaded rod; 4. Limiting rod; 5. Weighing sensor; 6. Fixing rod; 7. Second support; 8. First support rod; 9. Second support rod; 10. Side plate; 11. Drive roller; 12. Drive motor; 13. Transmission belt; 14. Driven roller; 15. Rubber anti-collision strip; 16. Guardrail; 17. Warning light; 18. Buzzer. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5This utility model provides a technical solution: an automatic online weighing machine with protective function, including a first support 1, a sliding groove 2 is formed at one end of the upper part of the first support 1, a threaded rod 3 is slidably connected to one side of the surface of the sliding groove 2, a limit rod 4 is fixedly connected to one end of the threaded rod 3, a weighing sensor 5 is fixedly connected to one end of the upper surface of the first support 1, a fixing rod 6 is fixedly connected to the other end of the upper surface of the first support 1, a second support 7 is slidably connected to one side of the surface of the fixing rod 6, a first support rod 8 is fixedly connected to one end of the lower surface of the second support 7, a second support rod 9 is fixedly connected to the other end of the lower surface of the second support 7, and a side plate 10 is fixedly connected to one end of the upper surface of the second support 7. One side of the bearing is connected to the active roller 11, and the other side of the side plate 10 is fixedly connected to the drive motor 12. A transmission belt 13 is attached to one side of the surface of the active roller 11, and a driven roller 14 is attached to the inner surface of the transmission belt 13. During use, the item to be weighed is placed at the inlet of the transmission belt 13 through the upstream equipment. The drive motor 12 is started, which drives the active roller 11 to rotate. The transmission belt 13 conveys the item towards the weighing sensor 5 at a set speed. When the item passes above the first support rod 8, its weight is transmitted to the weighing sensor 5 through the transmission belt 13, the second support 7, and the first support rod 8. The weighing sensor 5 collects weight data in real time and transmits it to the external control system. The external control system calculates and displays the current weight.

[0023] Furthermore, a rubber anti-collision strip 15 is fixedly connected to the outer surface of the transmission belt 13, and a guardrail 16 is fixedly connected to one end of the upper surface of the side plate 10. Through the setting of the transmission belt 13 and the rubber anti-collision strip 15, the rubber anti-collision strip 15 can buffer the impact force when the items are loaded, reduce the wear of the transmission belt 13, and extend the service life of the transmission belt 13. Through the setting of the side plate 10 and the guardrail 16, the guardrail 16 effectively prevents the items from sliding or rolling, which is especially suitable for irregularly shaped materials, improves the yield rate, and the guardrail 16 facilitates real-time observation of the weighing process, reduces the need for manual intervention, and reduces labor costs.

[0024] Furthermore, a warning light 17 is fixedly connected to the other end of the upper surface of the side plate 10, and a buzzer 18 is fixedly connected to the other end of the upper surface of the side plate 10. Through the setting of the side plate 10 and the warning light 17, the warning light 17 can intuitively display the equipment status, thus improving maintenance efficiency. Through the setting of the side plate 10 and the buzzer 18, the buzzer 18 can clearly alarm, thus improving the operator's response speed.

[0025] Furthermore, the limiting rod 4 is slidably connected to the sliding groove 2, and four sets of fixing rods 6 are provided. Through the setting of the limiting rod 4 and the sliding groove 2, the height of the limiting rod 4 can be adjusted, thereby adjusting the stroke distance of the second support rod 9, which provides protection for different types of weighing sensors 5. Through the setting of four sets of fixing rods 6, the weight of the second support 7 is evenly distributed by the four fixing rods 6, reducing local stress deformation and extending the service life of the equipment.

[0026] Furthermore, the first support rod 8 is provided in four sets. The first support rod 8 is attached to the weighing sensor 5. With the four sets of first support rod 8 evenly distributed, the weight of the item is transmitted to the weighing sensor 5 through four points, eliminating the off-center loading error. Through the arrangement of the first support rod 8 and the weighing sensor 5, the weighing sensor 5 can measure the weight transmitted by the first support rod 8 in real time, thus improving the weighing efficiency.

[0027] Furthermore, four sets of second support rods 9 are provided, and the output end of the drive motor 12 is fixedly connected to the active roller 11. With the setting of four sets of second support rods 9, the second support rods 9 serve as overload protection fulcrums. When the weight exceeds the range of the weighing sensor 5, it is automatically triggered to protect the weighing sensor 5 from damage and reduce maintenance costs. Through the setting of drive motor 12 and active roller 11, the direct drive structure of drive motor 12 and active roller 11 reduces transmission loss and improves the operating efficiency of drive motor 12.

[0028] Furthermore, the driven roller 14 is connected to the side plate 10 by a bearing. Through the arrangement of the driven roller 14 and the side plate 10, the driven roller 14 can cooperate with the driving roller 11 to achieve the effect of the transmission belt 13 transporting the items, thereby improving the weighing efficiency of the device.

[0029] Working principle: During use, the item to be weighed is placed at the inlet of the transmission belt 13 via the upstream equipment. The drive motor 12 is started, driving the active roller 11 to rotate. The transmission belt 13 conveys the item towards the weighing sensor 5 at a set speed. When the item passes above the first support rod 8, its weight is transmitted to the weighing sensor 5 through the transmission belt 13, the second bracket 7, and the first support rod 8. The weighing sensor 5 collects weight data in real time and transmits it to the external control system. The external control system calculates and displays the current weight. An adjustable limit rod 4 is set on the first bracket 1. Before starting the device, the limit rod 4 can be adjusted according to actual use by loosening the nuts of each set of threaded rods 3. Adjust the limit rod 4 to a suitable height, and fix the limit rod 4 by tightening the nuts of each set of threaded rods 3, thereby changing the sliding distance of the second support rod 9, indirectly protecting the load cell 5. When the weight of the measured item exceeds the rated range of the load cell 5, the second support rod 9 touches the preset limit rod 4 to prevent the load cell 5 from being overstretched or compressed. The control system presets an overload threshold, and automatically stops the conveyor belt when triggered. An alarm is issued through the warning light 17 and the buzzer 18 to remind the operator, which greatly improves the operating efficiency of the automatic online weighing machine. The model of the load cell 5 is Z6FC3, the model of the buzzer 18 is Autonics B2PB-24V, and the model of the warning light 17 is TPFB5-L73ROG.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic online weighing machine with protective function, comprising a first support (1), characterized in that: A sliding groove (2) is provided at one end of the upper part of the first bracket (1). A threaded rod (3) is slidably connected to one side of the surface of the sliding groove (2). A limit rod (4) is fixedly connected to one end of the threaded rod (3). A weighing sensor (5) is fixedly connected to one end of the upper surface of the first bracket (1). A fixing rod (6) is fixedly connected to the other end of the upper surface of the first bracket (1). A second bracket (7) is slidably connected to one side of the surface of the fixing rod (6). A first support rod (8) is fixedly connected to one end of the lower surface of the second bracket (7). A second support rod (9) is fixedly connected to the other end of the lower surface of the second bracket (7). A side plate (10) is fixedly connected to one end of the upper surface of the second bracket (7). An active roller (11) is connected to one side of the surface of the side plate (10) by a bearing. A drive motor (12) is fixedly connected to the other side of the surface of the side plate (10). A transmission belt (13) is attached to one side of the surface of the active roller (11). A driven roller (14) is attached to the inner surface of the transmission belt (13).

2. The automatic on-line weighing machine with protection function according to claim 1, characterized in that: A rubber anti-collision strip (15) is fixedly connected to the outer surface of the transmission belt (13), and a guardrail (16) is fixedly connected to one end of the upper surface of the side plate (10).

3. The automatic on-line weighing machine with protection function according to claim 1, characterized in that: A warning light (17) is fixedly connected to the other end of the upper surface of the side plate (10), and a buzzer (18) is fixedly connected to the other end of the upper surface of the side plate (10).

4. The automatic on-line weighing machine with protection function according to claim 1, characterized in that: The limiting rod (4) is slidably connected to the sliding groove (2), and the fixing rod (6) is provided in four sets.

5. The automatic on-line weighing machine with protection function according to claim 1, characterized in that: The first support rod (8) is provided in four sets, and the first support rod (8) is attached to the weighing sensor (5).

6. The automatic on-line weighing machine with protection function according to claim 1, characterized in that: The second support rod (9) is provided with four sets, and the output end of the drive motor (12) is fixedly connected to the active roller (11).

7. The automatic on-line weighing machine with protection function according to claim 1, characterized in that: The driven roller (14) is connected to the side plate (10) bearing.

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