Integrated alarm system of conveyor

By installing return belt detection baffles, rocker rollers, and sensor assemblies on the conveyor, the belt running status can be monitored in real time, solving the problem that sensors in existing technologies are susceptible to environmental influences. This enables immediate response to belt failures and improves the safety and stability of the production line.

CN224091028UActive Publication Date: 2026-04-07LUANPING COUNTY XIAOYING TOWNSHIP LIMIN MINING IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The sensors in existing conveyor integrated alarm systems are susceptible to environmental factors, leading to false alarms or missed alarms, slow response speed, poor system scalability and compatibility, and difficulty in triggering alarms in a timely manner, which affects the safety and stability of the production line.

Method used

The system employs components such as a return belt detection baffle, rocker arm roller, belt breakage sensor, and test sensor to monitor the operating status of the return belt in real time. Abnormal situations are detected by the movement of the fixed rod and connecting rod, and alarm signals are quickly output to achieve immediate response to belt failures.

Benefits of technology

It improves the safety and stability of the production line, reduces material loss and equipment damage, ensures the continuous and stable operation of the production line, and enhances the level of automation and operating efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of return belt detection and alarm, and discloses a conveyor comprehensive alarm system which comprises a supporting column and a return belt, fixing rods are movably installed at the bottom of the supporting column, and a return belt detection baffle is fixedly installed at one end of each fixing rod. And one end of the return belt detection baffle makes contact with the inner side of the return belt, and a return sensor is fixedly installed in the return belt detection baffle. The system can monitor the running state of the return belt in real time and effectively detect abnormal conditions such as material spilling and leakage and longitudinal belt tearing, when faults occur, spilled and leaked materials can trigger the detection baffle and are captured by the return sensor in real time through movement of the fixing rod, belt breakage alarm signals are rapidly output, and the system not only improves production safety, but also reduces production cost. Material loss is reduced, belt faults can be found and processed in time, fault expansion is avoided, and continuous and stable operation of a production line is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of return belt detection and alarm technology, and more specifically, to a comprehensive alarm system for conveyors. Background Technology

[0002] The integrated conveyor alarm system is a highly integrated monitoring and alarm solution designed to ensure the safe and stable operation of conveyors. This system integrates multiple advanced sensors and detection devices to monitor key conveyor parameters in real time, including but not limited to belt speed, drum rotation speed, and material position. Once the system detects abnormalities such as belt slippage, tearing, misalignment, or material blockage, it immediately triggers the alarm mechanism. The system's alarms respond quickly, providing clear alarm information to operators through intuitive methods such as audible and visual alarms or text displays. This design aims to promptly alert operators to abnormal situations and effectively prevent escalation, thereby ensuring the safe and efficient operation of the production line. Through this integrated alarm system, enterprises can significantly improve the stability and reliability of their production lines.

[0003] Existing technologies use sensors to detect conveyor belts; however, the accuracy and reliability of these sensors are easily affected by long-term use and environmental factors (dust, temperature, humidity), potentially leading to false alarms or missed alarms. Furthermore, the installation location and quality also affect accuracy. Insufficient system response speed will prevent timely alarm triggering, and information transmission delays will also affect operator reaction time. In addition, sensors and monitoring equipment require regular maintenance and calibration; otherwise, system performance will degrade. When upgrading and modifying conveyor systems, traditional alarm systems often face limitations in scalability and compatibility, making it difficult to easily add new monitoring points and sensors. These issues pose challenges to the effectiveness and reliability of traditional integrated conveyor alarm systems, requiring serious attention and solutions. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a comprehensive alarm system and alarm for a conveyor, which has the advantage of facilitating the detection of the return belt.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a comprehensive alarm system for a conveyor, comprising a support column and a return belt, wherein a fixed rod is movably installed at the bottom of the support column, and a return belt detection baffle is fixedly installed at one end of the two fixed rods, and one end of the return belt detection baffle contacts the inner side of the return belt, and a return sensor is fixedly installed inside the return belt detection baffle.

[0006] As a preferred embodiment of this utility model, a rocker arm roller is movably installed on the inner side of the return belt, a connecting rod is fixedly installed on the outer surface of the rocker arm roller, a fixing block is fixedly installed at one end of the connecting rod, and one end of the fixing block is fixedly connected to the support column. A belt breakage sensor is fixedly installed on the top of the fixing block.

[0007] As a preferred technical solution of this utility model, a test sensor is fixedly installed on the top of the rocker arm roller. The test sensor and the reset button are electrically connected. The reset button, the return sensor, the belt break sensor, the test sensor and the buzzer are all electrically connected. One end of the buzzer is electrically connected to the equipment stop point.

[0008] As a preferred embodiment of this utility model, a limiting post is fixedly installed on the top of the supporting post, a supporting plate is fixedly installed on the outer surface of the limiting post, and a fixing plate is fixedly installed between the two supporting plates.

[0009] As a preferred embodiment of this utility model, a reinforcing rib is fixedly installed at the angle between the support plate and the fixing plate, and the reinforcing rib is triangular in shape.

[0010] As a preferred technical solution of this utility model, the alarm includes a slippage alarm, a belt breakage alarm, and a belt misalignment alarm, and the three alarms are individually connected to the internal wiring terminals of the control box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model can monitor the operating status of the return belt in real time, effectively detect material spillage and longitudinal tearing of the belt. When a fault occurs, the spilled material will trigger the detection baffle, and the movement of the fixed rod will be instantly captured by the return sensor, rapidly outputting a belt break alarm signal. This system not only improves production safety and reduces material loss, but also promptly detects and handles belt faults, preventing the fault from escalating and ensuring the continuous and stable operation of the production line. Therefore, this system is of great significance in production practice, providing strong support for the safe production and efficient operation of enterprises.

[0013] 2. This utility model is based on belt breakage detection based on the change in the angle between the rocker arm roller and the return belt. It can accurately sense the breakage of the return belt. Once the belt tension is lost, the rocker arm roller will immediately drive the connecting rod to adjust the angle. This subtle change is quickly captured by the belt breakage sensor and an alarm signal is issued immediately. This not only greatly shortens the fault response time and effectively avoids production accidents caused by belt breakage, but also improves the safety and stability of the overall production line, providing solid technical support for the continuous production and efficient operation of enterprises.

[0014] 3. This invention installs a test sensor on the rocker arm roller to monitor the operating status of the return belt. It can instantly respond to any slippage of the return belt and quickly issue a slippage alarm signal via a buzzer. This instant feedback mechanism not only improves the safety of the production line and reduces equipment damage and material loss caused by slippage, but also enables operators to take rapid measures to prevent the escalation of the fault. Furthermore, this real-time monitoring and anomaly alarm system enhances the overall automation level and operating efficiency of the production line, providing strong support for the safe production and efficient operation of the enterprise. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0016] Figure 2 This is a three-dimensional view of the rear appearance structure of the present utility model;

[0017] Figure 3 This is a schematic diagram of the support plate structure of this utility model;

[0018] Figure 4 This is the integrated circuit diagram of the belt extrusion system of this utility model.

[0019] In the diagram: 1. Support column; 2. Return belt; 3. Rocker arm roller; 4. Belt breakage sensor; 5. Fixing block; 6. Connecting rod; 7. Fixing rod; 8. Return belt detection baffle; 9. Limiting column; 10. Support plate; 11. Reinforcing rib; 12. Fixing plate; 13. Return sensor; 14. Equipment stop point; 15. Test sensor; 16. Reset button; 17. Buzzer. Detailed Implementation

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

[0021] like Figures 1 to 4 As shown, this utility model provides a comprehensive alarm system for a conveyor, including a support column 1 and a return belt 2. A fixing rod 7 is movably installed at the bottom of the support column 1. A return belt detection baffle 8 is fixedly installed at one end of the two fixing rods 7, and one end of the return belt detection baffle 8 contacts the inner side of the return belt 2. A return sensor 13 is fixedly installed inside the return belt detection baffle 8.

[0022] When the return belt 2 deviates severely, causing material spillage or longitudinal tearing, the spilled material will fall directly onto the upper surface of the return belt 2, forming a protruding part. Subsequently, the return belt 2 will transport the spilled material back to the discharge port. During the return process, the protruding part of the material will touch the pre-set return belt detection baffle 8. The return belt detection baffle 8 will drive the fixed rod 7 to move up and down on the outer surface of the support column 1. This change is immediately captured by the return sensor 13, which will immediately output a belt break alarm signal, thereby realizing fault detection and alarm.

[0023] This system can monitor the real-time operating status of the return belt 2, effectively detecting abnormalities such as material spillage and longitudinal belt tears. When a fault occurs, the spilled material triggers the detection baffle 8, which is instantly captured by the return sensor 13 through the movement of the fixed rod 7, rapidly outputting a belt break alarm signal. This system not only improves production safety and reduces material loss, but also promptly detects and handles belt faults, preventing escalation and ensuring the continuous and stable operation of the production line. Therefore, this system is of great significance in production practice, providing strong support for the safe production and efficient operation of enterprises.

[0024] Among them, a rocker arm roller 3 is movably installed on the inner side of the return belt 2, a connecting rod 6 is fixedly installed on the outer surface of the rocker arm roller 3, a fixing block 5 is fixedly installed on one end of the connecting rod 6, and one end of the fixing block 5 is fixedly connected to the support column 1. A belt break sensor 4 is fixedly installed on the top of the fixing block 5.

[0025] When the rocker arm roller 3 forms a certain angle with the return belt 2, and the return belt 2 breaks, its tension disappears. The rocker arm roller 3 drives the connecting rod 6 to adjust downward angle inside the fixed block 5, thereby causing the angle between the rocker arm roller 3 and the return belt 2 to change. This change is immediately captured by the belt breakage sensor 4, and a belt breakage alarm signal is immediately output, thus realizing a rapid response and alarm for the breakage of the return belt 2.

[0026] Based on the belt breakage detection of the change in the angle between the rocker arm roller 3 and the return belt 2, the breakage of the return belt 2 can be accurately detected. Once the belt tension is lost, the rocker arm roller 3 will drive the connecting rod 6 to adjust the angle. This subtle change is quickly captured by the belt breakage sensor 4 and an alarm signal is issued in time. This not only greatly shortens the fault response time and effectively avoids production accidents caused by belt breakage, but also improves the safety and stability of the overall production line, providing solid technical support for the company's continuous production and efficient operation.

[0027] Among them, a test sensor 15 is fixedly installed on the top of the rocker arm roller 3. The test sensor 15 and the reset button 16 are electrically connected. The reset button 16, the return sensor 13, the belt break sensor 4, the test sensor 15 and the buzzer 17 are all electrically connected. One end of the buzzer 17 is electrically connected to the equipment stop point 14.

[0028] By installing the test sensor 15 on the rocker arm roller 3 at the running speed of the return belt 2, when the return belt 2 slips for some reason, the test sensor 15 can detect the speed change in real time and trigger the slippage alarm signal, thereby realizing real-time monitoring and abnormal alarm of the running status of the return belt 2.

[0029] A test sensor 15 is installed on the rocker arm roller 3 to monitor the operating status of the return belt 2. This sensor can respond instantly to any slippage of the return belt 2 and quickly issue a slippage alarm signal via a buzzer 17. This real-time feedback mechanism not only improves the safety of the production line and reduces equipment damage and material loss caused by slippage, but also enables operators to take rapid measures to prevent the escalation of the fault. Furthermore, this real-time monitoring and anomaly alarm system enhances the overall automation level and operating efficiency of the production line, providing strong support for the company's safe production and efficient operation.

[0030] The return and belt break sensors are two PNP proximity switches. When the rocker arm roller 3 triggers the proximity switch, the contactor KM is energized, KM1 changes from normally open to normally closed and KM self-locks, and the buzzer 17 is energized to sound an alarm. KM2 changes from normally closed to normally open. At this time, the equipment stops at the equipment stop point 14. Pressing the reset button 16 disconnects the contactor KM, the buzzer 17 stops sounding, and the test sensor 15 detects the pulse of the rocker arm roller 3 on the rocker arm. When the return belt 2 slips due to underspeed, the pulse decreases, the test sensor 15 changes from open to closed, then KM1 changes from normally open to normally closed and KM self-locks, the buzzer 17 is energized to sound an alarm, KM2 changes from normally closed to normally open, and the equipment stops. Pressing the reset button 16 disconnects the contactor KM, and the buzzer 17 stops sounding.

[0031] Among them, a limiting column 9 is fixedly installed on the top of the supporting column 1, a supporting plate 10 is fixedly installed on the outer surface of the limiting column 9, and a fixing plate 12 is fixedly installed between the two supporting plates 10.

[0032] The cooperation between the limiting post 9, the support plate 10 and the fixing plate 12 facilitates stable support for the rocker arm roller 3 and the return belt detection baffle 8, and avoids the return belt detection baffle 8 and the limiting post 9 during use, thereby improving the detection efficiency of the rocker arm roller 3 and the return belt detection baffle 8 on the return belt 2.

[0033] A reinforcing rib 11 is fixedly installed at the angle between the support plate 10 and the fixing plate 12, and the reinforcing rib 11 is triangular in shape.

[0034] Since the reinforcing rib 11 is triangular in shape at the angle between the support plate 10 and the fixing plate 12, and the triangle has the characteristic of stability, the stability of the support plate 10 and the fixing plate 12 is ensured during use, and the efficiency of the support plate 10 and the fixing plate 12 during use is improved.

[0035] The alarm system includes a slippage alarm, a belt breakage alarm, and a belt misalignment alarm, with each of the three alarms individually connected to the internal wiring terminals of the control box. Each alarm outputs a switch signal to the control alarm; it automatically stops the machine, simultaneously illuminating the alarm indicator light on the panel, locking the control circuit, and sounding the buzzer. After the fault is cleared, pressing the reset button on the panel will clear the alarm signal from the control box.

[0036] Working principle and usage process of this utility model:

[0037] When the return belt 2 deviates severely, causing material spillage or longitudinal tearing, the spilled material will fall directly onto the upper surface of the return belt 2, forming a protruding part. Subsequently, the return belt 2 will transport the spilled material back to the discharge port. During the return process, the protruding part of the material will touch the pre-set return belt detection baffle 8. The return belt detection baffle 8 will drive the fixed rod 7 to move up and down on the outer surface of the support column 1. This change is immediately captured by the return sensor 13, which will immediately output a belt break alarm signal, thereby realizing fault detection and alarm.

[0038] When the rocker arm roller 3 forms a certain angle with the return belt 2, and the return belt 2 breaks, its tension disappears. The rocker arm roller 3 drives the connecting rod 6 to adjust downward angle inside the fixed block 5, thereby causing the angle between the rocker arm roller 3 and the return belt 2 to change. This change is immediately captured by the belt breakage sensor 4, and a belt breakage alarm signal is immediately output, thus realizing a rapid response and alarm for the breakage of the return belt 2.

[0039] By installing the test sensor 15 on the rocker arm roller 3 at the running speed of the return belt 2, when the return belt 2 slips for some reason, the test sensor 15 can detect the speed change in real time and trigger the slippage alarm signal, thereby realizing real-time monitoring and abnormal alarm of the running status of the return belt 2.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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. A comprehensive alarm system for a conveyor, comprising a support column (1) and a return belt (2), characterized in that: A fixing rod (7) is movably installed at the bottom of the support column (1). A return belt detection baffle (8) is fixedly installed at one end of each of the two fixing rods (7), and one end of the return belt detection baffle (8) contacts the inner side of the return belt (2). A return sensor (13) is fixedly installed inside the return belt detection baffle (8). A rocker arm roller (3) is movably installed on the inner side of the return belt (2). A connecting rod (6) is fixedly installed on the outer surface of the rocker arm roller (3). A fixing block (5) is fixedly installed at one end of the connecting rod (6). ), and one end of the fixing block (5) is fixedly connected to the support column (1). A belt breakage sensor (4) is fixedly installed on the top of the fixing block (5). A test sensor (15) is fixedly installed on the top of the rocker roller (3). The test sensor (15) and the reset button (16) are electrically connected. The reset button (16), the return sensor (13), the belt breakage sensor (4), the test sensor (15) and the buzzer (17) are all electrically connected. One end of the buzzer (17) is electrically connected to the equipment stop point (14).

2. The integrated alarm system for a conveyor according to claim 1, characterized in that: A limiting post (9) is fixedly installed on the top of the supporting post (1), and a supporting plate (10) is fixedly installed on the outer surface of the limiting post (9). A fixing plate (12) is fixedly installed between the two supporting plates (10).

3. The integrated alarm system for a conveyor according to claim 2, characterized in that: A reinforcing rib (11) is fixedly installed at the angle between the support plate (10) and the fixing plate (12), and the reinforcing rib (11) is triangular in shape.

4. The integrated alarm system for a conveyor according to claim 1, characterized in that: The return sensor (13) and the belt break sensor (4) are PNP type proximity switches.