Abnormal working condition monitoring and alarming device of conveying belt for tire conveying

Abstract

The utility model relates to the technical field of tire production and manufacturing equipment, in particular to an abnormal working condition monitoring and alarming device for a conveying belt for tire conveying, which can monitor the abnormal working condition of a tire conveying line and is characterized by further comprising a working condition monitoring and alarming mechanism. The working condition monitoring and alarming mechanism comprises a sensor fixing assembly arranged on the rack, the sensor fixing assembly is composed of a strip-shaped sensor support and L-shaped fixing frames located at the two ends of the strip-shaped sensor support, and the L-shaped fixing frames are oppositely arranged at the two ends of the strip-shaped sensor support. The upper surface of a bottom plate of the L-shaped fixing frame is fixedly connected with the bottom face of the strip-shaped sensor support, a vertical plate of the L-shaped fixing frame is fixedly connected with the rack, the strip-shaped sensor support is composed of a cuboid-shaped base with the upper end open and an upper cover plate, the upper cover plate is provided with a fixing window used for fixing a photoelectric sensor, and the photoelectric sensor is arranged in the fixing window. And a power supply and a control circuit board which are connected with the photoelectric sensor are arranged in the base.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production and manufacturing equipment, and specifically to an abnormal working condition monitoring and alarm device for a tire conveyor belt, which can monitor the abnormal working condition of a tire conveyor line and output an alarm signal in time to avoid damage to the conveying equipment and conveying jams, thereby improving the operating efficiency of the equipment. Background Art

[0002] In the field of tire conveying and testing equipment, it is necessary to use a transport line to transfer the tires to the designated production station. At the branch point of the transport line, the tires on the conveyor belt need to be pushed and transferred horizontally. At this stage, modular conveyor belts are mostly used. The modular conveyor belt is composed of multiple modular conveyor belt units assembled by hinges or buckles. It has a large number of parts and is connected by a series of small components through threading strips. Therefore, after a long period of operation, there will be faults such as threading strip displacement or modular conveyor belt deviation and derailment. The falling of parts will not only cause obstruction of material transportation, but also cause damage to the edge components of the conveyor belt and aggravate the scratches between the conveyor belt and the surrounding structures. If the inspection is not discovered in time, it will eventually cause the overall tearing of the modular conveyor belt, making the equipment unable to operate, increasing maintenance costs and extending downtime, affecting normal production.

[0003] In order to monitor the running status of the conveyor belt, the existing technology mostly adopts monitoring methods combined with machine vision. By setting a camera above the set area of ​​the conveyor belt, image data is collected and sent to the host computer for processing to determine whether the current conveyor belt is offset or partially torn. This detection method is accurate but costly. Summary of the invention

[0004] In view of the shortcomings and deficiencies in the prior art, the utility model proposes a tire conveyor belt abnormal condition monitoring and alarm device which has low cost, reasonable structure, does not require large-scale modification of existing transportation lines, and can realize conveyor belt operation status monitoring and abnormal condition alarm.

[0005] The utility model achieves this through the following measures:

[0006] A tire conveyor belt abnormal condition monitoring and alarm device is provided with a tire conveyor belt mechanism, the tire conveyor belt mechanism comprises a frame, a driving roller, two or more driven rollers and a conveyor belt body are provided on the frame, the conveyor belt body is annular and is wound around the outside of the driving roller and the driven roller, the driving roller is driven by a driving motor to drive the conveyor belt body to operate, and is characterized in that a condition monitoring and alarm mechanism is also provided, the condition monitoring and alarm mechanism comprises a sensor fixing assembly arranged on the frame, the sensor fixing assembly consists of a strip sensor bracket and an L-shaped fixing frame located at both ends of the strip sensor bracket, the L-shaped fixing frame is relatively arranged at both ends of the strip sensor bracket, the upper surface of the bottom plate of the L-shaped fixing frame is respectively fixedly connected to the bottom surface of the strip sensor bracket, the vertical plate of the L-shaped fixing frame is fixedly connected to the frame, the strip sensor bracket consists of a rectangular base with an open upper end and an upper cover plate, a fixing window for fixing a photoelectric sensor is provided on the upper cover plate, and a power supply and a control circuit board connected to the photoelectric sensor are provided in the base.

[0007] The strip sensor bracket in the sensor fixing assembly of the utility model is arranged in parallel with the driving roller or the driven roller, and is arranged between adjacent driven rollers or driving rollers, and is located between the upper belt body and the lower belt body of the conveyor belt. Furthermore, more than two sensor fixing assemblies are provided, and the sensor fixing assemblies are respectively arranged on the frame corresponding to the starting section, the end section and the middle section of the conveyor belt.

[0008] The strip sensor bracket of the utility model is made of plastic material, and more than two photoelectric sensor fixing windows are provided on the upper cover plate. Furthermore, at least three photoelectric sensor fixing windows are provided on the upper cover plate of the strip sensor bracket, which are respectively located at the two ends and the middle of the strip sensor bracket. The photoelectric sensors located at the two ends are used to detect the edge deviation of the conveyor belt, so the spacing between the photoelectric sensors located at the two ends is greater than the width of the conveyor belt.

[0009] The photoelectric sensor in the utility model adopts a diffuse reflection photoelectric sensor. A controller and a wireless communication circuit are provided on the control circuit board in the strip sensor bracket. The controller is respectively connected to the diffuse reflection photoelectric sensor fixed on the current strip sensor bracket, and is also connected to the wireless communication circuit. The wireless communication circuit communicates with an external host computer.

[0010] The utility model is also provided with an audible and visual alarm component, which includes a buzzer and an alarm light, which are respectively connected to a host computer. The host computer is also connected to a driving motor via a motor control circuit, and is used to stop transmission in time when abnormal operation of the conveyor belt is detected, so as to avoid faulty parts from scratching related components.

[0011] When the utility model is working, more than two sensor fixing components are arranged in the rack space on the upper and lower sides of the conveyor belt to realize the monitoring of the running status of the starting section, the end section and the middle section of the conveyor belt. Specifically, at least three photoelectric sensors are arranged on the strip sensor bracket in each sensor fixing component, wherein the photoelectric sensors located at the two ends are not blocked by the edge of the conveyor belt when the conveyor belt is running normally. When the conveyor belt is offset, the photoelectric sensors located at the two ends are blocked, and the detected signals are sent to the upper computer through the wireless communication circuit, so that the operator can timely discover the conveyor belt offset fault and the offset position (i.e. the starting section, the middle section and the end), thereby timely eliminating the obstacle, and for modular The problem of loose and torn parts of the conveyor belt can be solved by monitoring the photoelectric sensors in the middle part of multiple sensor fixing assemblies, which can capture the same position of the conveyor belt at different operating times, thereby ensuring that there are no loose parts at the corresponding position of the conveyor belt. Once the loose parts are detected, the monitoring data is uploaded to the host computer in time through the wireless communication circuit. The sensor fixing assembly described in the utility model can be flexibly installed on the frame as needed. During the installation process, there is no need to carry out large-scale dismantling and modification of the original conveyor belt device. If the corresponding sensor fixing assembly fails, the assembly can be replaced as a whole. It has significant advantages such as reasonable structure, low cost, easy maintenance, and reliable monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0013] Attached Figure 2 It is a structural schematic diagram of the frame in the utility model.

[0014] Attached Figure 3 It is a schematic diagram of the base structure of the sensor fixing component in the utility model.

[0015] Attached Figure 4 This is a circuit schematic diagram involved in Example 2 of the present utility model.

[0016] Figure numerals: frame 1, driving roller 2, driven roller 3, conveyor belt body 4, driving motor 5, sensor bracket 6, L-shaped fixing frame 7, base 8, photoelectric sensor 9, sound and light alarm component 10, host computer 11. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment 1:

[0019] As attached Figure 1As shown, the utility model proposes an abnormal working condition monitoring and alarm device for a tire conveyor belt, which is provided with a tire conveyor belt mechanism, the tire conveyor belt mechanism comprising a frame 1, a driving roller 2, two or more driven rollers 3 and a conveyor belt body 4 are provided on the frame 1, the conveyor belt body 4 is annular and is wound around the outside of the driving roller 2 and the driven roller 3, the driving roller 2 is driven by a driving motor 5 to drive the conveyor belt body 4 to operate, and a working condition monitoring and alarm mechanism is also provided, the working condition monitoring and alarm mechanism comprises a sensor fixing component arranged on the frame 1, the sensor fixing component The fixed component is composed of a strip sensor bracket 6 and an L-shaped fixing bracket 7 located at both ends of the strip sensor bracket 6. The L-shaped fixing bracket 7 is relatively arranged at both ends of the strip sensor bracket 6. The upper surface of the bottom plate of the L-shaped fixing bracket 7 is respectively fixedly connected to the bottom surface of the strip sensor bracket 6. The vertical plate of the L-shaped fixing bracket 7 is fixedly connected to the frame 1. The strip sensor bracket 6 is composed of a rectangular base 8 with an open upper end and an upper cover plate. A fixing window for fixing a photoelectric sensor is provided on the upper cover plate. A power supply and a control circuit board connected to the photoelectric sensor 9 are arranged in the base 8.

[0020] The strip sensor bracket 6 in the sensor fixing assembly of this example is arranged in parallel with the driving roller 2 or the driven roller 3, and is arranged between adjacent driven rollers 3 or driving rollers 2, and is located between the upper belt body and the lower belt body of the conveyor belt body 4. Furthermore, more than two sensor fixing assemblies are provided, and the sensor fixing assemblies are respectively arranged on the frame 1 at the starting section, the end section and the middle section corresponding to the conveyor belt;

[0021] The strip sensor bracket 6 in this example is made of plastic material, and the upper cover plate is provided with more than two photoelectric sensor fixing windows. Furthermore, the upper cover plate of the strip sensor bracket 6 is provided with at least three photoelectric sensor fixing windows, which are respectively located at the two ends and the middle of the strip sensor bracket 6. The photoelectric sensors located at the two ends are used to detect the edge deviation of the conveyor belt, so the spacing between the photoelectric sensors located at the two ends is greater than the width of the conveyor belt body 4.

[0022] In this example, the photoelectric sensor 9 adopts a diffuse reflection photoelectric sensor. The control circuit board in the strip sensor bracket 6 is provided with a controller and a wireless communication circuit. The controller is respectively connected to the diffuse reflection photoelectric sensor fixed on the current strip sensor bracket, and is also connected to the wireless communication circuit. The wireless communication circuit communicates with an external host computer. In this example, the controller can adopt an STM32 single-chip microcomputer, and the wireless communication circuit can adopt an SI4438 UART. The electrical connection of this part is a prior art and is not described in detail here.

[0023] This example is also provided with an audible and visual alarm component 10, which includes a buzzer and an alarm light, which are respectively connected to a host computer 11, and the host computer 11 is also connected to the drive motor 5 via a motor control circuit, and is used to stop the transmission in time when the transmission belt is detected to be abnormal, so as to avoid the faulty parts from scratching the related parts;

[0024] During operation, more than two sensor fixing components are arranged in the rack space on the upper and lower sides of the conveyor belt to monitor the running status of the starting section, the end section and the middle section of the conveyor belt. Specifically, at least three photoelectric sensors 9 are arranged on the strip sensor bracket 6 in each sensor fixing component, wherein the photoelectric sensors 9 located at both ends are not blocked by the edge of the conveyor belt when the conveyor belt is operating normally. When the conveyor belt is offset, the photoelectric sensors 9 located at both ends are blocked, and the detected signals are sent to the host computer 11 via the wireless communication circuit, so that the operator can timely discover the conveyor belt offset fault and the offset position (i.e., the starting section, the middle section and the end), thereby eliminating the obstacle in time. For the problem of loose and torn parts of the modular conveyor belt, the photoelectric sensors in the middle part of multiple sensor fixing components are used to monitor, so as to capture the same position of the conveyor belt at different operating times, thereby ensuring that there is no loose part at the corresponding position of the conveyor belt. Once the loose parts are detected, the monitoring data is uploaded to the host computer 11 via the wireless communication circuit in time.

[0025] Embodiment 2:

[0026] This example uses a frame and sensor fixing assembly similar to that of Example 1. The two ends of the two sets of strip sensor brackets are respectively provided with diffuse reflection photoelectric sensors B1, B2, B3, and B4. The electrical connection between the host computer and the drive motor in this example is as follows: Figure 4 As shown, B1, B2, B3, B4 are diffuse reflection photoelectric sensors, F1 is a motor protection circuit breaker, F2 is a control circuit breaker, S1 is a transport line start button, S2 is a transport line stop button, KM1 is a motor contactor, K1 and K2 are module conveyor belt status intermediate relays, H1 is an alarm light, and M1 is a traction motor;

[0027] The upper end of the motor protection circuit breaker F1 is connected to the three-phase power supply, and the lower end is connected to the upper end of the normally open main contact of the motor contactor KM1, and the lower end of the normally open main contact of the motor contactor KM1 is connected to the motor M1. The upper end of the circuit breaker F2 is connected to the power supply L1, and the lower end is connected to the long-closed contact of the stop button S1, and the lower end of the long-closed contact of S1 is connected to the normally open contact of the start button S2, and the lower end of the normally open contact of the start button S2 is connected to the upper end of the normally open contact of the module conveyor belt normal state intermediate relay K1. The upper end of the auxiliary normally open contact of the motor contactor KM1 is connected to the upper end of the normally open contact of the start button S2, and the lower end is connected to the lower end of the normally open contact of the start button S2, the lower end of the normally open contact of the module conveyor belt normal state intermediate relay K1 is connected to the upper end of the normally open contact of the module conveyor belt normal state intermediate relay K2, the lower end of the normally open contact of the module conveyor belt normal state intermediate relay K2 is connected to the upper end of the coil of the contactor KM1, and the lower end of the coil of the contactor KM1 is connected to the neutral line;

[0028] The upper end of the diffuse reflection photoelectric sensor B1 is connected to the power supply L1, and the lower end is connected to the upper end of the diffuse reflection photoelectric sensor B2. The lower end of the diffuse reflection photoelectric sensor B2 is connected to the upper end of the coil of the module conveyor belt normal state intermediate relay K1. The lower end of the coil of the module conveyor belt normal state intermediate relay K1 is connected to the neutral line.

[0029] The upper end of the diffuse reflection photoelectric sensor B3 is connected to the power supply L1, and the lower end is connected to the upper end of the diffuse reflection photoelectric sensor B4. The lower end of the diffuse reflection photoelectric sensor B4 is connected to the upper end of the coil of the module conveyor belt normal state intermediate relay K2. The lower end of the coil of the module conveyor belt normal state intermediate relay K2 is connected to the neutral line;

[0030] The upper end of the normally closed contact of the module conveyor belt normal state intermediate relay K1 is connected to the upper end of the normally closed contact of the module conveyor belt normal state intermediate relay K2 and connected to the power supply L1, the lower end of the normally closed contact of the module conveyor belt normal state intermediate relay K1 is connected to the lower end of the normally closed contact of the module conveyor belt normal state intermediate relay K2 and connected to the upper end of the alarm light H1, and the lower end of the alarm light H1 is connected to the neutral line;

[0031] When the system is powered on, the coil of the module conveyor belt status intermediate relay K1 is energized and attracted through the diffuse reflection photoelectric sensors B1 and B2 of the circuit breaker F2, and the normally open contact of the intermediate relay K1 is closed. At the same time, the coil of the module conveyor belt status intermediate relay K2 is energized and attracted through the diffuse reflection photoelectric sensors B3 and B4 of the circuit breaker F2, and the normally open contact of the intermediate relay K2 is closed. At this time, the start button S2 is pressed, and the coil of the motor contactor KM1 is energized and attracted through the circuit breaker F2, the normally closed contact of the stop button S1, the normally open contact of the start button S2, the normally open contact of the intermediate relay K1, and the normally open contact of the intermediate relay K2, and the auxiliary normally open contact of the contactor KM1 is self-locked. The traction motor M1 is energized and operated through the motor protection circuit breaker F1 and the normally open contact of the contactor KM1. After the speed is adjusted by the reducer, the drive roller (6) is driven by the chain to operate and the module conveyor belt is driven to operate. If the module conveyor belt has components falling off or derailing during operation, when the abnormal part runs to any diffuse reflection photoelectric sensor monitoring position, the corresponding diffuse reflection photoelectric sensor will stop outputting normal signals, and at the same time, the module conveyor belt status intermediate relay K1 or K2 coil loses power and disconnects, the normally open point is disconnected, and the contactor KM1 coil loses power and disconnects due to the disconnection of the normally open point of K1 or K2, and the traction motor M1 stops running. At the same time, the alarm light H1 starts to alarm through the normally closed contact of the module conveyor belt status intermediate relay K1 or K2.

[0032] This device can effectively prevent the module conveyor belt from running with defects, causing more serious tearing or even breakage and falling off, reduce the difficulty of fault handling, shorten fault downtime, and reduce the occurrence of accidents.

[0033] The sensor fixing assembly described in the utility model can be flexibly installed on the frame as needed. During the installation process, there is no need to perform large-scale dismantling and modification of the original conveyor belt device. If the corresponding sensor fixing assembly fails, the assembly can be replaced as a whole. It has significant advantages such as reasonable structure, low cost, easy maintenance, and reliable monitoring.

Claims

1. A tire conveyor belt abnormal condition monitoring and alarm device, provided with a tire conveyor belt mechanism, the tire conveyor belt mechanism comprising a frame, the frame is provided with a driving roller, two or more driven rollers and a conveyor belt body, the conveyor belt body is annular and wound around the driving roller and the driven roller, the driving roller is driven by a driving motor to drive the conveyor belt body to operate, characterized in that: A working condition monitoring and alarm mechanism is also provided, which includes a sensor fixing assembly arranged on the frame, and the sensor fixing assembly consists of a strip sensor bracket and an L-shaped fixing frame located at both ends of the strip sensor bracket, the L-shaped fixing frame is relatively arranged at both ends of the strip sensor bracket, the upper surface of the bottom plate of the L-shaped fixing frame is respectively fixedly connected to the bottom surface of the strip sensor bracket, the vertical plate of the L-shaped fixing frame is fixedly connected to the frame, the strip sensor bracket consists of a rectangular base with an open upper end and an upper cover plate, a fixing window for fixing the photoelectric sensor is provided on the upper cover plate, and a power supply and a control circuit board connected to the photoelectric sensor are provided in the base.

2. The abnormal working condition monitoring and alarm device for a tire conveyor belt according to claim 1 is characterized in that: The strip sensor bracket in the sensor fixing assembly is arranged in parallel with the driving roller or the driven roller, and is arranged between adjacent driven rollers or driving rollers, and is located between the upper belt body and the lower belt body of the conveyor belt body.

3. The abnormal working condition monitoring and alarm device for a tire conveyor belt according to claim 2 is characterized in that: More than two sensor fixing assemblies are provided, and the sensor fixing assemblies are respectively arranged on the frame corresponding to the starting section, the end section and the middle section of the conveyor belt.

4. The abnormal working condition monitoring and alarm device for a tire conveyor belt according to claim 1 is characterized in that: The strip sensor bracket is made of plastic material, and the upper cover plate is provided with more than two photoelectric sensor fixing windows.

5. The abnormal working condition monitoring and alarm device for a tire conveyor belt according to claim 4 is characterized in that: At least three photoelectric sensor fixing windows are provided on the upper cover plate of the strip sensor bracket, which are respectively located at the two ends and the middle of the strip sensor bracket. The photoelectric sensors located at the two ends are used to detect the edge deviation of the conveyor belt, so the spacing between the photoelectric sensors located at the two ends is greater than the width of the conveyor belt.

6. The abnormal working condition monitoring and alarm device for a tire conveyor belt according to claim 1 is characterized in that: The photoelectric sensor adopts a diffuse reflection photoelectric sensor. A controller and a wireless communication circuit are provided on the control circuit board in the strip sensor bracket. The controller is respectively connected to the diffuse reflection photoelectric sensor fixed on the current strip sensor bracket, and is also connected to the wireless communication circuit. The wireless communication circuit communicates with an external host computer.

7. The abnormal working condition monitoring and alarm device for tire conveyor belt according to claim 1 is characterized in that: There is also an audible and visual alarm component, which includes a buzzer and an alarm light, which are respectively connected to the host computer. The host computer is also connected to the drive motor through the motor control circuit. When the abnormal operation of the conveyor belt is detected, the transmission is stopped in time to avoid faulty parts scratching related components.

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