Belt conveyor belt interface state detection alarm device

Abstract

The utility model discloses a belt conveyor belt interface state detection alarm device, which is characterized in that a time delay mechanism comprises a proximity switch and an industrial camera, the proximity switch is arranged below a belt, the industrial camera is arranged beside the proximity switch, the proximity switch is triggered by a metal sheet, and an alarm mechanism comprises a computer, a PLC (Programmable Logic Controller) and an alarm. The industrial camera is electrically connected with a computer, one end of the computer is electrically connected with a PLC, the PLC is electrically connected with the conveyor, photographing is carried out through the trigger type industrial camera, the calculation pressure of the image processing server is reduced, and frequent photographing of the camera is reduced. And the connection nodes of the belt can be automatically detected, and the working intensity of maintenance personnel is reduced. And the alarm gives an alarm to timely remind a worker that the connection node of the belt is abnormal.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection and alarm, and in particular relates to a belt interface state detection and alarm device for a belt conveyor. Background Art

[0002] Belt conveyor is a continuous conveying equipment that uses flexible leather belts to carry and pull materials. Its working principle is based on the principle of friction. The transmission rolling will drive the belt to operate, thereby realizing the continuous transportation of materials. With the development of modern industry, belt conveyors, as an important material transportation equipment, have been widely used in mining, metallurgy, electricity, chemical industry and other fields. Belt conveyors have greatly improved production efficiency and reduced labor costs through their continuous and efficient material transportation capabilities. However, as the core component of the belt conveyor, the operating status of the belt directly affects the stability and safety of the entire conveying system.

[0003] In the cigarette processing process of the tobacco industry, belt conveyors are used as auxiliary equipment in the production process and are widely used. At present, the workshop mainly uses hot melt bonding technology to bond the belts. Maintenance personnel frequently check and repair the interfaces to find out whether they are abnormal. During the production process, it is difficult to find out due to the obstruction of materials and the limitations of equipment. It is often found after the fact or replaced in advance, resulting in waste of resources and increased labor intensity of maintenance personnel. Manual inspections require a lot of manpower and time, and it is difficult to accurately judge the status of the belt interface due to the experience and skill level of the inspectors. Secondly, although regular maintenance can detect and deal with some potential problems in a timely manner, it cannot achieve real-time monitoring and early warning of the belt interface status, which poses a great safety hazard. Utility Model Content

[0004] In view of the above shortcomings, the purpose of the utility model is to provide a belt conveyor belt interface state detection alarm device to solve the monitoring and early warning problems in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A belt conveyor belt interface status detection and alarm device comprises a conveyor and a belt, wherein the conveyor is used to drive the belt to operate; the belt surface is provided with connection nodes and metal sheets; a delay mechanism is provided under the conveyor, and the delay mechanism is used to delay shooting of the connection nodes; the delay mechanism is electrically connected to an alarm mechanism.

[0007] Furthermore, the metal sheet is on the left side of the connection node.

[0008] In the above scheme, the belt operation drives the metal sheet and the connection node to the bottom of the belt, and the metal sheet is always sensed by the proximity switch first.

[0009] Furthermore, the delay mechanism includes a proximity switch and an industrial camera. The proximity switch is provided under the belt, and the industrial camera is provided next to the proximity switch. The proximity switch is triggered by the metal sheet.

[0010] In the above scheme, when the proximity switch triggers the induction, a delay is generated. After the delay time, the industrial camera is triggered by the proximity switch to take a photo. The purpose of delayed photography is to enable the industrial camera to accurately photograph the connection node. During the extended time, the belt will just move the connection node into the shooting range of the industrial camera, so as to obtain a clear photo of the connection node. Every time the metal sheet passes the proximity switch, it will trigger the industrial camera to take a photo.

[0011] Furthermore, the alarm mechanism includes a computer, a PLC controller and an alarm, the industrial camera is electrically connected to the computer, one end of the computer is electrically connected to the PLC controller, and the PLC controller is electrically connected to the conveyor.

[0012] In the above scheme, the photos are transmitted to the computer and processed by the image processing server, and the processing results are fed back to the PLC controller. If the returned result is that the connection node status at the belt is abnormal, the PLC controller controls the conveyor to stop running and controls the alarm to sound at the same time. Otherwise, if the returned result is that there is no abnormality in the connection node status at the belt, no control command is issued.

[0013] Furthermore, the alarm is an audible and visual alarm.

[0014] Furthermore, the computer has an image processing server.

[0015] Furthermore, the metal sheet triggers a proximity switch, and the proximity switch delays the start-up of the industrial camera.

[0016] In the above scheme, the sound and light alarm not only sends out sound alarm, but also has flash alarm and even voice alarm function. This multiple alarm signal can more comprehensively remind people to pay attention to emergency situations.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. Use a triggered industrial camera to take photos, which reduces the computing pressure on the image processing server and reduces the frequency of camera photos.

[0019] 2. It can automatically detect the connection nodes of the belt to reduce the workload of maintenance personnel.

[0020] 3. Use the alarm to promptly remind staff of abnormal belt connection nodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0024] Figure 3 This is the electrical connection diagram of the utility model.

[0025] In the figure, 10, conveyor; 11, belt; 12, connection node; 13, metal sheet; 14, proximity switch; 15, industrial camera; 16, computer; 17, PLC controller; 18, alarm. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different 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] Embodiment 1:

[0030] refer to Figure 1 A belt conveyor belt interface state detection alarm device comprises a conveyor 10 and a belt 11, wherein the conveyor 10 is used to drive the belt 11 to operate; a roller is connected to the output end of the conveyor 10, and the belt 11 is wound around the outer periphery of the roller. When the conveyor 10 drives the driving roller to rotate, the belt 11 is driven to rotate by friction, thereby realizing continuous transportation of materials;

[0031] refer to Figure 1 and Figure 2 A delay mechanism is provided under the conveyor 10, and the delay mechanism includes a proximity switch 14 and an industrial camera 15. A connection node 12 and a metal sheet 13 are provided on the surface of the belt 11. The metal sheet 13 is on the left side of the connection node 12, and the belt 11 runs to the left. A proximity switch 14 is provided under the belt 11, and an industrial camera 15 is provided next to the proximity switch 14.

[0032] In the above scheme, the connection node 12 is the connection point between the head and tail ends of the belt 11. When the belt 11 runs to the left, and the metal sheet 13 is on the left side of the connection node 12, that is, the belt 11 runs to drive the metal sheet 13 and the connection node 12 to the bottom of the belt 11, the metal sheet 13 is always sensed by the proximity switch 14 first, and a delay is generated when the proximity switch 14 triggers the induction. After the delay time, the industrial camera 15 is triggered by the proximity switch 14 to take a photo. The purpose of delayed photography is to enable the industrial camera 15 to accurately photograph the connection node 12. During the extended time, the belt 11 will just move the connection node 12 to the photographing range of the industrial camera 15, so as to obtain a clear photo of the connection node 12. Every time the metal sheet 13 passes the proximity switch 14 once, it will trigger the industrial camera 15 to take a photo. It is worth noting that: regardless of whether the belt 11 runs to the left or the right, the metal sheet 13 always passes the proximity switch 14 first. When the detection object is a metal material, a high-frequency oscillation type proximity switch should be selected. The proximity switch 14 is a position switch that can be operated without direct mechanical contact with moving parts. When an object approaches the sensing surface of the switch 14 to the action distance, the switch can be activated without mechanical contact or any pressure, thereby driving a DC appliance or providing control instructions to a computer PLC.

[0033] refer to Figure 1 and Figure 3 The delay mechanism is electrically connected to an alarm mechanism, the alarm mechanism includes a computer 16, a PLC controller 17 and an alarm 18, the industrial camera 15 is electrically connected to the computer 16, one end of the computer 16 is electrically connected to the PLC controller 17, and the PLC controller 17 is electrically connected to the conveyor 10.

[0034] In the above scheme, the computer 16 includes an image processing server. When the proximity switch 14 triggers the induction, a delay is generated. After the delay time, the industrial camera 15 is triggered by the proximity switch 14 to take a photo. The photo is transmitted to the computer 16 and processed by the image processing server. The processing result is fed back to the PLC controller 17. If the return result is that the state of the connection node 12 at the belt 11 is abnormal, the PLC controller 17 controls the conveyor 10 to stop running, and at the same time controls the alarm 18 to alarm. On the contrary, when the return result is that the state of the connection node 12 at the belt 11 is normal, no control instruction is issued. Taking photos by the triggered industrial camera 15 reduces the computing pressure of the image processing server and reduces the frequent taking photos of the camera. The connection node 12 of the belt 11 can be automatically detected to reduce the work intensity of the maintenance personnel. And the alarm 18 alarms to remind the staff in time that the connection node 12 of the belt is abnormal.

[0035] Further references Figure 1The alarm 18 is an audible and visual alarm. The audible and visual alarm not only emits an audible alarm, but also has a flashing alarm and even a voice alarm function. This multiple alarm signal can more comprehensively remind people to pay attention to the emergency. The audible and visual alarm can distinguish different alarm states through different sounds, flashes and voices, thereby improving the recognition and comprehensibility of the alarm.

[0036] The specific implementation process of this embodiment is as follows:

[0037] When in use, the belt 11 runs to drive the metal sheet 13 and the connection node 12 to the bottom of the belt 11. The metal sheet 13 is always sensed by the proximity switch 14 first. When the proximity switch 14 triggers the sensing, a delay is generated. After the delay time, the industrial camera 15 is triggered by the proximity switch 14 to take a photo, and the belt 11 repeats the cycle. Every time the metal sheet 13 passes the proximity switch 14, the industrial camera 15 is triggered to take a photo. The photo is transmitted to the computer 16 and processed by the image processing server. The processing result is fed back to the PLC controller 17. If the returned result is that the state of the connection node 12 at the belt 11 is abnormal, the PLC controller 17 controls the conveyor 10 to stop running, and at the same time controls the alarm 18 to alarm. Otherwise, if the returned result is that the state of the connection node 12 at the belt 11 is normal, no control instruction is issued.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A belt conveyor belt interface state detection alarm device, comprising a conveyor (10) and a belt (11), characterized in that: The conveyor (10) is used to drive the belt (11) to operate; The surface of the belt (11) is provided with connection nodes (12) and metal sheets (13); A delay mechanism is provided below the conveyor (10), and the delay mechanism is used for delayed shooting of the connection node (12); The time delay mechanism is electrically connected to an alarm mechanism.

2. A belt conveyor belt interface state detection alarm device according to claim 1, characterized in that: The metal sheet (13) is on the left side of the connection node (12).

3. A belt conveyor belt interface state detection alarm device according to claim 2, characterized in that: The time delay mechanism comprises a proximity switch (14) and an industrial camera (15). The proximity switch (14) is arranged below the belt (11), the industrial camera (15) is arranged beside the proximity switch (14), and the proximity switch (14) is triggered by the metal sheet (13).

4. A belt conveyor belt interface state detection alarm device according to claim 3, characterized in that: The alarm mechanism comprises a computer (16), a PLC controller (17) and an alarm (18); the industrial camera (15) is electrically connected to the computer (16); one end of the computer (16) is electrically connected to the PLC controller (17); and the PLC controller (17) is electrically connected to the conveyor (10).

5. A belt conveyor belt interface state detection alarm device according to claim 4, characterized in that: The alarm (18) is an audible and visual alarm.

6. A belt conveyor belt interface state detection alarm device according to claim 4, characterized in that: The computer (16) has an image processing server.

7. A belt conveyor belt interface state detection and alarm device according to claim 3, characterized in that: The metal sheet (13) triggers a proximity switch (14), and the proximity switch (14) delays the start of an industrial camera (15).

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