A real-time display and voice alarm device for the flow of a silica sand raw material discharge port

Abstract

The utility model provides a kind of silicon sand raw material unloading sand opening flow real-time display and voice alarm device, including belt weigher, PLC controller, host computer, audible alarm lamp and LED intelligent display screen, the belt weigher is installed on belt conveyor, the analog output port of belt weigher is electrically connected with the PLC controller in centralized control room, the PLC controller and host computer the PLC digital output of PLC controller and audible alarm lamp electrically connected.The utility model has the beneficial effect as follows, the utility model is discharged by the belt weigher of installation in belt conveyor Flow acquisition, after being handled by PLC controller etc., real-time flow value is shown in on-site discharge port, so that discharging driver can be according to current real-time flow, the inclination angle of vehicle rear discharge hopper is remotely controlled by remote controller, artificially effectively control vehicle discharge speed, prevent conveying belt equipment overload use, greatly prolong the service life of equipment.

Description

Technical Field

[0001] This utility model is a device for real-time display and voice alarm of the flow rate at the unloading port of silica sand raw material, belonging to the technical field of glass raw material unloading equipment. Background Technology

[0002] Among the raw materials used in glass production, silica sand accounts for the largest proportion. In inland glass companies, silica sand is mainly transported by semi-trailers. After the silica sand arrives at the company, it needs to be unloaded. Currently, the main method is to use a sinking truck for unloading, which is then conveyed to a designated storage point via a conveyor belt. During this unloading process, the driver may not be able to obtain the real-time flow rate of the conveyor equipment, making it impossible to accurately control the tilt angle of the loading truck. This results in excessively fast unloading speeds and frequent overloading of the conveyor belt. If the equipment is used under overload for a long period of time, it will reduce the service life of the equipment and may even cause serious equipment failures such as belt breakage and motor burnout, which will seriously affect the normal production of the company. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a device for real-time display and voice alarm of the flow rate at the unloading port of silica sand raw materials.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A real-time flow display and voice alarm device for silica sand raw material unloading port includes a belt scale, a PLC controller, a host computer, an audible and visual alarm light, and an LED intelligent display screen. The belt scale is installed on a belt conveyor. The analog output port of the belt scale is electrically connected to the PLC controller in a centralized control room. The PLC controller's digital output port is electrically connected to the audible and visual alarm light. The flow data from the PLC controller is converted by an analog-to-digital converter and transmitted to the LED intelligent display screen. The feed end of the belt conveyor extends into the feed inlet, which is located on a frame. A protective alarm mechanism is provided on the other side of the top of the frame. The audible and visual alarm light is located inside the protective alarm mechanism. The protective alarm mechanism and the PLC controller are electrically connected via a wireless signal transceiver.

[0006] Furthermore, the protective alarm mechanism includes a storage cavity opened inside the chassis. Two dust covers are hinged to the top opening of the storage cavity. A linkage rope is provided on the inner side of the dust cover, and a traction rope is connected to the outer side of the dust cover. The other end of the traction rope extends into the movable groove on the top of the chassis and is connected to the counterweight.

[0007] Furthermore, a vertical drive component is provided at the bottom center of the storage cavity. The top telescopic end of the vertical drive component is connected to the moving block. The other end of the linkage rope is connected and fixed to the top of the moving block. Limiting guide rods are provided on both sides of the bottom of the moving block. The bottom ends of the limiting guide rods are slidably connected in the limiting guide groove. The limiting guide groove is opened at the bottom of the storage cavity. The audible and visual alarm light is installed at the top center of the moving block. A high-frequency alarm is provided on each side of the top of the moving block.

[0008] Furthermore, an external gear ring is rotatably connected to the inner bottom of the storage cavity and to the outside of the moving block. The side of the external gear ring is meshed with a drive gear and two auxiliary gears. The bottom end of the auxiliary gear is rotatably connected to the storage cavity. The drive gear is connected to the output end of the drive motor. The top of the external gear ring is provided with several mounting brackets. A micro motor is provided in the mounting bracket. The side output end of the micro motor is connected to the flexible cleaning plate.

[0009] Furthermore, the vertical drive component is either a telescopic cylinder or an electric telescopic rod.

[0010] Furthermore, the top opening of the movable groove is provided with a guide wheel that cooperates with the traction rope.

[0011] Furthermore, electromagnets are provided at both the upper and lower ends of the limiting guide groove, and a magnetic adsorption block adapted to the electromagnet is provided at the bottom of the limiting guide rod.

[0012] Furthermore, a maintenance ladder is provided on the side of the belt conveyor.

[0013] The beneficial effects of this utility model are:

[0014] This invention collects unloading flow rate data by installing a belt scale on the belt conveyor. After processing by a PLC controller, the real-time flow rate value is displayed at the unloading port. The unloading driver can then remotely control the tilt angle of the vehicle's rear unloading bucket based on the current real-time flow rate, effectively controlling the vehicle's unloading speed and preventing the conveyor belt equipment from being overloaded, thus greatly extending the equipment's service life.

[0015] The present invention provides a method for real-time display of conveyor belt material flow that is simple in structure, easy to operate, and visual.

[0016] The present invention provides a flow alarm value that can be freely adjusted on a host computer, and the device has an audible and visual alarm function.

[0017] This invention, through the design of a protective alarm mechanism, ensures that the audible and visual alarm lights and high-frequency alarms are only removed from the chassis during unloading. Specifically, when the belt conveyor starts, the PLC controller synchronously activates the vertical drive component, which pushes the moving block upward. During the upward movement of the moving block, the dust cover is gradually rotated and opened, allowing the audible and visual alarm lights and high-frequency alarms to be exposed from the chassis for warning purposes. After the silica sand conveying operation is completed, the audible and visual alarm lights and high-frequency alarms are reset and lowered back into the chassis for safekeeping. At the same time, the dust cover is automatically opened and closed, achieving automated sealing while also cleaning the dust that has accumulated on the surface of the audible and visual alarm lights.

[0018] This invention uses an electromagnet and a magnetic adsorption block to limit the stability of the limiting guide rod at both ends of its vertical stroke, thereby providing support and fixing for the moving block. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a real-time display and voice alarm device for the flow rate of silica sand raw material unloading port according to this utility model. Figure 1 ;

[0021] Figure 2 This is a partial structural schematic diagram of a device for real-time display and voice alarm of silica sand raw material unloading port according to the present invention;

[0022] Figure 3 This is a partial structural diagram of the chassis of the device for real-time display and voice alarm of silica sand raw material unloading port according to the present invention;

[0023] Figure 4 This is a partial internal structural diagram of the chassis of the device for real-time display and voice alarm of silica sand raw material unloading port according to the present invention;

[0024] Figure 5 This is a partial structural diagram of the protective alarm mechanism of a real-time display and voice alarm device for the flow rate of silica sand raw material unloading port according to this utility model. Figure 1 ;

[0025] Figure 6 This is a partial structural diagram of the protective alarm mechanism of a real-time display and voice alarm device for the flow rate of silica sand raw material unloading port according to this utility model. Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the structure of a real-time display and voice alarm device for the flow rate of silica sand raw material unloading port according to this utility model. Figure 2 .

[0027] In the diagram: 1. Belt scale; 2. PLC controller; 3. Host computer; 4. Analog to 485 module; 5. Audible and visual alarm light; 6. LED intelligent display screen; 7. Belt conveyor; 8. Maintenance ladder; 9. Frame; 10. Feed inlet; 11. Chassis; 12. Storage cavity; 13. External gear ring; 14. Auxiliary gear; 15. Drive gear; 16. Drive motor; 17. Moving block; 18. Vertical drive component; 19. Limiting guide rod; 20. Limiting guide groove; 21. High-frequency alarm; 22. Dustproof cover; 23. Movable groove; 24. Traction rope; 25. Counterweight; 26. Guide wheel; 27. Linkage rope; 28. Mounting frame; 29. ​​Flexible cleaning plate. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-7 This utility model provides a technical solution for a real-time display and voice alarm device for the flow rate of silica sand raw material unloading port, including a belt scale 1, a PLC controller 2, a host computer 3, an audible and visual alarm light 5, and an LED intelligent display screen 6. The belt scale 1 is installed on a belt conveyor 7. The analog output port of the belt scale 1 is electrically connected to the PLC controller 2 in the centralized control room. The PLC controller 2 and the host computer 3 are connected. The PLC digital output port of the PLC controller 2 is electrically connected to the audible and visual alarm light 5. The flow rate data of the PLC controller 2 is converted by an analog-to-digital converter 4 and then transmitted to the LED intelligent display screen 6. The feed end of the belt conveyor 7 extends into the feed inlet 10. The feed inlet 10 is set on a frame 9. A protective alarm mechanism is provided on the other side of the top of the frame 9. The audible and visual alarm light 5 is set in the protective alarm mechanism. The protective alarm mechanism and the PLC controller 2 are electrically connected through a wireless signal transceiver.

[0030] See Figures 1-6The protective alarm mechanism includes a storage cavity 12 located within the housing 11. Two dust covers 22 are hinged to the top opening of the storage cavity 12. A linkage rope 27 is provided on the inner side of each dust cover 22, and a traction rope 24 is connected to the outer side of each dust cover 22. The other end of the traction rope 24 extends into a movable slot 23 at the top of the housing 11 and connects to a counterweight 25. A vertical drive component 18 is located at the bottom center of the storage cavity 12. The top telescopic end of the vertical drive component 18 is connected to a moving block 17. The linkage rope 27... The other end is fixedly connected to the top of the movable block 17. Limiting guide rods 19 are provided on both sides of the bottom of the movable block 17. The bottom end of the limiting guide rod 19 is slidably connected to the limiting guide groove 20. The limiting guide groove 20 is opened at the inner bottom of the storage cavity 12. The audible and visual alarm light 5 is installed at the center of the top of the movable block 17. A high-frequency alarm 21 is provided on each side of the top of the movable block 17. An external toothed ring 13 is rotatably connected to the inner bottom of the storage cavity 12 and located outside the movable block 17. The side of the external toothed ring 13... The outer gear ring 13 is equipped with a drive gear 15 and two auxiliary gears 14. The bottom end of the auxiliary gears 14 is rotatably connected to the receiving cavity 12. The drive gear 15 is connected to the output end of the drive motor 16. The top of the outer gear ring 13 is provided with several mounting brackets 28. A micro motor is installed in each mounting bracket 28. The side output end of the micro motor is connected to the flexible cleaning plate 29. Through the design of the protective alarm mechanism, the audible and visual alarm light 5 and the high-frequency alarm 21 will only be removed from the housing 11 when unloading. That is, when the belt conveyor 7 is started, PL Controller 2 synchronously starts the vertical drive component 18, which pushes the moving block 17 to rise. During the rise of the moving block 17, the dust cover 22 is gradually rotated and opened, allowing the audible and visual alarm light 5 and the high-frequency alarm 21 to be exposed from the chassis 11 for alarm operation. After the silica sand conveying operation is completed, the audible and visual alarm light 5 and the high-frequency alarm 21 are reset and lowered into the chassis 11 for storage and protection. At the same time, the dust cover 22 is automatically opened and closed, achieving automated sealing while also cleaning the dust that has accumulated on the surface of the audible and visual alarm light 5.

[0031] See Figure 4 The vertical drive component 18 is one of a telescopic cylinder or an electric telescopic rod; the vertical drive component 18 can be matched with different vertical drive components in the prior art according to the user's needs, and is not limited to any one of the prior art.

[0032] See Figure 4 The top opening of the movable groove 23 is provided with a guide wheel 26 that cooperates with the traction rope 24; the design of the guide wheel 26 can limit the movement trajectory of the traction rope 24 and reduce the wear of the traction rope 24.

[0033] See Figure 4 The upper and lower ends of the limiting guide groove 20 are equipped with electromagnets, and the bottom of the limiting guide rod 19 is equipped with a magnetic adsorption block that is compatible with the electromagnet. Through the design of the electromagnet and the magnetic adsorption block, the stability of the limiting guide rod 19 at both ends of the vertical stroke can be limited, which can play a supporting and fixing role for the moving block 17.

[0034] See Figures 1-2 The belt conveyor 7 is provided with a maintenance ladder 8 on its side; the design of the maintenance ladder 8 facilitates the maintenance of the belt conveyor 7.

[0035] The circuits and electronic components and modules involved, motors, belt scales, PLC controllers, host computers, analog-to-485 modules, audible and visual alarm lights, LED intelligent displays, and belt conveyors are all existing technologies that can be fully implemented by those skilled in the art, and there is no need to elaborate. The content protected by this application does not involve any improvement to the software and methods.

[0036] In operation, the truck loaded with silica sand moves to the inlet 10 for unloading. The unloading action is then performed by tilting the rear unloading hopper. The silica sand entering the inlet 10 is conveyed by the belt conveyor 7. During the conveying process, the belt scale 1 below the belt conveyor 7 collects the real-time flow rate of the belt. The flow rate data is transmitted as a 4-20mA current signal through the analog output port of the belt scale 1 to the analog input module of the PLC controller 2 in the central control room via the power line. The corresponding software converts the 4-20mA analog signal into a digital display (KG / hour) and displays the result. The alarm flow limit is set on the unit 3. The audible and visual alarm light 5 at the unloading port is connected through the PLC digital output port. The flow data is converted by the analog to 485 module 4 and then transmitted to the LED intelligent display screen 6 for display. This realizes the real-time display of the current flow of the sand unloading conveyor belt. The unloading driver controls the tilt angle of the unloading hopper at the rear of the vehicle and controls the unloading speed within a suitable range by using the real-time flow value displayed on the LED intelligent display screen 6 and the prompts of the audible and visual alarm light 5. This effectively controls the sand unloading flow to not exceed the set value of the conveying equipment flow, effectively protects the conveying equipment from operating within the equipment load range, and greatly extends the service life of the conveying equipment.Due to dust issues in the unloading environment, and to improve the service life of the warning components, the aforementioned audible and visual alarm light 5 and high-frequency alarm 21 are only removed from the housing 11 during unloading. Specifically, when the belt conveyor 7 starts, the PLC controller 2 synchronously activates the vertical drive component 18, which pushes the moving block 17 upwards. During this upward movement, the moving block 17 gradually pushes the dust cover 22 to rotate and open, allowing the audible and visual alarm light 5 and high-frequency alarm 21 to be exposed outside the housing 11 for warning purposes. After the silica sand conveying operation is completed, the vertical drive component 18 retracts, and the moving block 17... Under the action of the limiting guide rod 19 and the limiting guide groove 20, the device descends steadily until it resets and reaches the bottom of the receiving cavity 12. During the descent of the moving block 17, the moving block 17 will pull the dust cover 22 to reset and rotate via the linkage rope 27, thus sealing the opening of the receiving cavity 12 again. Subsequently, the controller starts the drive motor 16 and the micro motor. The micro motor drives the flexible cleaning plate 29 to rotate, so that the flexible cleaning plate 29 is in contact with the surface of the audible and visual alarm light 5. Then, the drive motor 16 drives the external gear ring 13 to rotate via the drive gear 15, thereby driving the flexible cleaning plate 29 to rotate and achieve the audible and visual alarm. The dust accumulated on the surface of the alarm light 5 is cleaned. This cleaning is only to prevent dust from affecting the operation of the audible and visual alarm light 5, not to prevent dust accumulation. For accumulated dust, maintenance personnel can periodically clean the dust inside the storage cavity 12 through the inspection port on the side of the chassis 11. The purpose of using the flexible cleaning plate 29 is that its flexible material allows it to deform and thus fit tightly against the audible and visual alarm light 5. Also, because the audible and visual alarm light 5 has a limited usage time, the amount of dust accumulated is small and mostly surface dust. While surface dust is light, it can obstruct the light; therefore, only a small amount of surface dust is used. The combination of a high-speed motor and a flexible cleaning plate 29 for dust removal is cost-effective and perfectly suited for removing loose dust. Because it's loose dust, the gear ratio of the drive gear 15 and the external gear ring 13 is designed to control the rotation speed of the external gear ring 13, allowing it to drive the flexible cleaning plate 29 at a slower speed. This reduces dust diffusion during cleaning. Additionally, the flexible cleaning plate 29 is equipped with a dust-absorbing sponge. The dust-absorbing sponge typically has a fixed replacement cycle, so maintenance personnel can replace it regularly before it becomes saturated.

[0037] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for real-time display and voice alarm of silica sand raw material discharge port flow rate, characterized in that, The system includes a belt scale (1), a PLC controller (2), a host computer (3), an audible and visual alarm light (5), and an LED intelligent display screen (6). The belt scale (1) is installed on a belt conveyor (7). The analog output port of the belt scale (1) is electrically connected to the PLC controller (2) in the central control room. The PLC controller (2) is connected to the host computer (3). The PLC digital output port of the PLC controller (2) is electrically connected to the audible and visual alarm light (5). The flow data of the PLC controller (2) is converted by an analog-to-485 module (4) and then transmitted to the LED intelligent display screen (6). The feed end of the belt conveyor (7) extends into the feed inlet (10). The feed inlet (10) is set on the frame (9). A protective alarm mechanism is provided on the other side of the top of the frame (9). The audible and visual alarm light (5) is set in the protective alarm mechanism. The protective alarm mechanism is electrically connected to the PLC controller (2) through a wireless signal transceiver.

2. The device for real-time display and voice alarm of silica sand raw material unloading port according to claim 1, characterized in that, The protective alarm mechanism includes a storage cavity (12) opened in the chassis (11). Two dust cover plates (22) are hinged at the top opening of the storage cavity (12). A linkage rope (27) is provided on the inner side of the dust cover plate (22). A traction rope (24) is connected to the outer side of the dust cover plate (22). The other end of the traction rope (24) extends into the movable groove (23) at the top of the chassis (11) and is connected to the counterweight (25).

3. The device for real-time display and voice alarm of silica sand raw material unloading port according to claim 2, characterized in that, A vertical drive unit (18) is provided at the bottom center of the storage cavity (12). The top telescopic end of the vertical drive unit (18) is connected to the moving block (17). The other end of the linkage rope (27) is connected and fixed to the top of the moving block (17). Limiting guide rods (19) are provided on both sides of the bottom of the moving block (17). The bottom end of the limiting guide rod (19) is slidably connected in the limiting guide groove (20). The limiting guide groove (20) is opened at the bottom of the storage cavity (12). The sound and light alarm lamp (5) is installed at the top center of the moving block (17). A high-frequency alarm (21) is provided on each side of the top of the moving block (17).

4. The device for real-time display and voice alarm of silica sand raw material unloading port according to claim 3, characterized in that, An external gear ring (13) is rotatably connected to the inner bottom of the storage cavity (12) and to the outside of the moving block (17). The side of the external gear ring (13) is meshed with a drive gear (15) and two auxiliary gears (14). The bottom end of the auxiliary gears (14) is rotatably connected to the storage cavity (12). The drive gear (15) is connected to the output end of the drive motor (16). The top of the external gear ring (13) is provided with several mounting brackets (28). A micro motor is provided in the mounting bracket (28). The side output end of the micro motor is connected to the flexible cleaning plate (29).

5. The device for real-time display and voice alarm of silica sand raw material unloading port according to claim 4, characterized in that, The vertical drive component (18) is either a telescopic cylinder or an electric telescopic rod.

6. The device for real-time display and voice alarm of silica sand raw material unloading port according to claim 5, characterized in that, The top opening of the movable groove (23) is provided with a guide wheel (26) that cooperates with the traction rope (24).

7. The device for real-time display and voice alarm of silica sand raw material unloading port flow rate according to claim 6, characterized in that, The upper and lower ends of the limiting guide groove (20) are provided with electromagnets, and the bottom of the limiting guide rod (19) is provided with a magnetic adsorption block that is compatible with the electromagnet.

8. The device for real-time display and voice alarm of silica sand raw material unloading port according to claim 7, characterized in that, The belt conveyor (7) is equipped with a maintenance ladder (8) on its side.

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