Quantitative feeding and weighing device

Abstract

The present application provides a quantitative feeding and weighing device, comprising: a feeding and weighing belt assembly, a feeding hopper, a hopper closing device, a driving assembly, a detection assembly and a cleaning assembly. Among them, the feeding hopper and the driving assembly are respectively arranged on the feeding and weighing belt assembly, two hopper closing devices are respectively arranged on the feeding hopper, and the detection assembly and the cleaning assembly are respectively arranged on the driving assembly; the detection assembly includes: a driving device, two symmetrically arranged detection bins and two weighing devices. The driving device is arranged on the driving assembly, the two detection bins are respectively arranged on the driving assembly, and the weighing devices are arranged in the detection bins; the weighing device is used to detect the weight of the target material in the detection bin and send it to the controller; the cleaning assembly is used to clean the remaining material in the detection bin to ensure the accuracy of subsequent weighing detection. Thus, during the process of quantitative feeding and weighing, the accuracy of conveying and metering can be detected and calibrated to improve the accuracy of material conveying and ensure the quality of finished products.

Description

Technical Field

[0001] The present application relates to the technical field of quantitative feeding, and particularly to a quantitative feeding weighing device. Background Art

[0002] A quantitative feeding weighing device refers to a device that continuously weighs bulk materials on a conveyor belt without subdividing the mass or interrupting the movement of the conveyor belt.

[0003] When the quantitative feeding weighing device is in use, in order to ensure the accuracy of its weighing, it is necessary to calibrate the belt scale.

[0004] In the related art, when there is a weighing error in the quantitative feeding weighing device, it is impossible to perform a detection and calibration operation on the belt scale, which will cause the quantitative feeding weighing device to be in a low-precision state for a period of time without calibration, affecting the accuracy of metering during material transportation, resulting in a weighing deviation situation, and further reducing the quality of the finished product when leaving the factory. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems in the above technologies to some extent.

[0006] To this end, the first object of the present application is to propose a quantitative feeding weighing device, which can detect the accuracy of conveying metering and timely calibrate the errors during the process of quantitative feeding weighing, thereby improving the accuracy of material transportation and ensuring the quality of the finished product when leaving the factory.

[0007] To achieve the above object, the first aspect embodiment of the present application proposes a quantitative feeding weighing device, including: a feeding weighing belt assembly, a feeding hopper, a hopper closing device, a driving assembly, a detection assembly, and a cleaning assembly, wherein,

[0008] The feeding hopper and the driving assembly are respectively arranged on the feeding weighing belt assembly, two of the hopper closing devices are respectively arranged on the feeding hopper, the detection assembly and the cleaning assembly are respectively arranged on the driving assembly, wherein, the cleaning assembly is used to clean the remaining materials in the detection bin; the detection assembly includes: a driving device, two symmetrically arranged detection bins, and two weighing devices, the detection bins and the weighing devices correspond one by one, wherein, the driving device is arranged on the driving assembly, two of the detection bins are respectively arranged on the driving assembly, and the weighing device is arranged in the detection bin; the weighing device is used to obtain the detection data of the weight of the target material in the detection bin and send it to the controller; the controller is used to compare the average value of multiple valid detection data with the preset feeding weight of the feeding weighing belt assembly to obtain an error value, and correct the error through an error adjustment device in the feeding weighing belt assembly and / or issue an alarm.

[0009] The quantitative feeding and weighing device according to the embodiment of the present application can detect and calibrate the accuracy of conveying and metering during the process of quantitative feeding and weighing, so as to improve the accuracy of material conveying and ensure the quality of finished products.

[0010] In addition, the quantitative feeding and weighing device according to the above embodiment of the present application may further have the following additional technical features:

[0011] In an embodiment of the present application, the driving assembly includes: a first hydraulic device and a mounting plate, wherein the first hydraulic device is arranged on the feeding and weighing belt assembly, and the mounting plate is arranged on the output end of the first hydraulic device.

[0012] In an embodiment of the present application, the hopper closing device includes: an electric push rod and a closing plate, wherein the electric push rod is arranged on the outer wall of the guide hopper, the closing plate is arranged on the output end of the electric push rod, and the upper surface of the closing plate is slidably connected to the discharge end of the guide hopper.

[0013] In an embodiment of the present application, the cleaning assembly includes: a second hydraulic device and a dust suction device, wherein the second hydraulic device is arranged on the driving assembly, and the dust suction device is arranged on the second hydraulic device.

[0014] In an embodiment of the present application, the guide hopper, the hopper closing device, the driving assembly, the detection assembly, and the cleaning assembly are respectively arranged below the discharge end of the feeding and weighing belt assembly.

[0015] In an embodiment of the present application, the detection assembly is arranged between the guide hopper and the dust suction device, wherein the open end of the detection bin is arranged directly below the discharge end of the guide hopper.

[0016] The additional aspects and advantages of the present application will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, wherein:

[0018] Figure 1 is a schematic diagram of the overall structure of a quantitative feeding and weighing device according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the overall structure of part A according to an embodiment of the present application;

[0020] Figure 3 Schematic front view structure of part A according to an embodiment of the present application;

[0021] Figure 4 Schematic cross-sectional view structure of part A according to an embodiment of the present application.

[0022] As shown in the figure: 1. Feeding and weighing belt assembly, 2. Material guiding hopper, 3. Hopper closing device, 31. Electric push rod, 32. Closing plate, 4. Driving assembly, 41. First hydraulic device, 42. Mounting plate, 5. Detection assembly, 51. Driving device, 52. Detection bin, 53. Weighing device, 6. Cleaning assembly, 61. Second hydraulic device, 62. Dust suction device, 7. Controller. Detailed implementation manners

[0023] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0024] The quantitative feeding and weighing device according to the embodiment of the present application will be described below with reference to the drawings.

[0025] The quantitative feeding and weighing device provided by the embodiment of the present application can be applied to the transportation of powdery and granular materials such as materials with large transportation volume, including grain, cement, and coal, for continuous transportation of a single material, and can also be applied to the mixed transportation of multiple materials such as grain, cement, and coal.

[0026] As Figure 1 and Figure 2 shown, the quantitative feeding and weighing device of the embodiment of the present application may include a feeding and weighing belt assembly 1, a material guiding hopper 2, a hopper closing device 3, a driving assembly 4, a detection assembly 5, and a cleaning assembly 6. It should be noted that the feeding and weighing belt assembly 1 can be a common belt weighing conveyor in the field of material transportation (for example, a straight belt conveyor, a light belt conveyor, a mobile lifting belt conveyor, etc.)

[0027] Among them, the material guiding hopper 2 and the driving assembly 4 are respectively arranged on the feeding and weighing belt assembly 1, two hopper closing devices 3 are respectively arranged on the material guiding hopper 2, and the detection assembly 5 and the cleaning assembly 6 are respectively arranged on the driving assembly 4.

[0028] The material guiding hopper 2, the hopper closing device 3, the driving assembly 4, the detection assembly 5, and the cleaning assembly 6 are respectively arranged below the discharge end of the feeding and weighing belt assembly 1. The cleaning assembly is used to clean the remaining material in the detection bin.

[0029] It should be noted that relevant personnel can direct the target material to the conveyor belt on the feeding and weighing belt assembly 1 through the feeding bin. Through the cyclic rotation of the belt, the conveying of the material is realized. During the conveying process, the target material on the belt is weighed by a weighing sensor, and then by controlling the rotation speed of the driving motor, the quantitative feeding of the target material is realized.

[0030] An error adjustment device (such as a belt tensioning device, a belt tension sensor, etc.) can be provided on the feeding and weighing belt assembly 1. According to the detection result of the belt tension sensor, the tension of the conveyor belt can be adjusted through the belt tensioning device to ensure the accuracy of the conveying measurement.

[0031] Specifically, relevant personnel can put the target material into the feeding bin. The target material in the feeding bin will fall onto the conveyor belt on the feeding and weighing belt assembly 1. The target material falls into the guiding hopper 2 through the feeding and weighing belt assembly 1 and is guided to a suitable working position (such as a mixing bin, a coal combustion furnace, etc.) through the guiding hopper 2.

[0032] As a possible situation, during the process of the feeding and weighing belt assembly 1 conveying the target material, the driving assembly 4 moves the detection assembly 5 and the cleaning assembly 6 to directly below the discharge end of the feeding and weighing belt assembly 1 according to a predetermined program (such as starting at a fixed time, starting according to the conveying volume, etc.). The detection assembly 5 detects the material falling amount per unit time. After the detection of the detection assembly 5 is completed, the cleaning assembly 6 timely cleans the residual material in the detected detection assembly 5 according to a predetermined program to ensure the accuracy of the next detection result. The detection is carried out in a sampling manner, which has little impact on the conveying of the feeding and weighing belt assembly 1 and also reduces the working pressure of the detection assembly 5.

[0033] As another possible situation, before the feeding and weighing belt assembly 1 conveys the target material, the driving assembly 4 moves the detection assembly 5 and the cleaning assembly 6 to directly below the discharge end of the feeding and weighing belt assembly 1. The detection assembly 5 detects the material falling amount per unit time, and the cleaning assembly 6 timely cleans the residual material in the detected detection assembly 5 according to a predetermined program to ensure the accuracy of the next detection result. In this way, real-time detection can be achieved to ensure the accuracy of the conveying measurement.

[0034] To clearly illustrate the previous embodiment, in an embodiment of the present application, as Figures 2 - 4 shown, the detection assembly 5 can include a driving device 51, two symmetrically arranged detection bins 52 and two weighing devices 53. The detection bins 52 and the weighing devices 53 are in one-to-one correspondence. Among them, the driving device 51 is arranged on the driving assembly 4, the two detection bins 52 are respectively arranged on the driving assembly 4, and the weighing device 53 is arranged in the detection bin 52.

[0035] A weighing device is used to obtain detection data of the weight of the target material in the detection bin 52 and send it to the controller 7.

[0036] The controller 7 is used to compare the average value of multiple valid detection data with the preset feeding weight of the feeding and weighing belt assembly 1 to obtain an error value, and correct the error through the error adjustment device in the feeding and weighing belt assembly 1 and / or issue an alarm.

[0037] Specifically, when it is necessary to detect the accuracy of the conveying and metering of the feeding belt assembly, the first hydraulic device 41 can move the detection assembly 5 and the cleaning assembly 6 to a suitable working position (a position convenient for detecting the target material) by controlling the movement of the mounting plate 42. When the detection assembly 5 is required for detection, the target material will fall into the detection bin 52. The weighing device 53 (for example, a high-precision weight sensor) detects the weight of the material falling into the detection bin 52. At the preset time (such as 15 seconds, 25 seconds, 30 seconds, etc.), the weighing device 53 will detect the total weight of the target material falling into the detection bin 52 within the preset time and send the detection result to the controller 7.

[0038] After one detection of the weighing device 53 is completed, the driving device 51 (for example, a stepping motor) can simultaneously drive the two detection bins 52 to flip, swapping the position of the weighed detection bin 52 with the idle detection bin 52. During this process, the target material in the weighed detection bin 52 will fall into a suitable working position (such as a mixing bin, a coal combustion furnace, etc.) until the opening direction of the detection bin 52 is vertically facing the ground. The cleaning assembly 6 can clean the remaining material in the detection bin 52 after dumping the target material. The idle detection bin 52 will receive the target material and, after the next set of detections, will also send the detection result to the controller 7.

[0039] It should be noted that the target material enters the detection bin 52 through the discharge hopper 2. The weighing device 53 (for example, a high-precision weight sensor) in the detection bin 52 can detect the total weight of the target material falling into the detection bin 52 within the preset time and send the detection result to the controller 7.

[0040] The controller 7 can compare the average value of multiple valid detection data with the preset feeding weight of the feeding and weighing belt assembly 1 to obtain an error value, and correct the error through the error adjustment device in the feeding and weighing belt assembly 1 and / or issue an alarm, timely adjusting the error, ensuring the stability of material weighing, and the timely alarm can also remind relevant personnel that there may be a fault in the quantitative feeding and weighing device that causes an error.

[0041] It should be noted that the controller 7 described in this embodiment can adjust the tension of the conveyor belt through an error adjustment device, a belt tensioning device, and a belt tension sensor to ensure the accuracy of conveying and metering. At the same time, an alarm (such as a buzzer alarm, a three-color alarm light, etc.) can be set on the controller 7.

[0042] To clearly illustrate the previous embodiment, in an embodiment of the present application, as Figure 4 shown, the driving assembly 4 may include a first hydraulic device 41 and a mounting plate 42. Among them, the first hydraulic device 41 is arranged on the feeding and weighing belt assembly 1, and the mounting plate 42 is arranged at the output end of the first hydraulic device 41.

[0043] It can be understood that the detection assembly 5 and the cleaning assembly 6 are respectively installed on the mounting plate 42, and the cleaning assembly 6 is arranged below the detection assembly 5. The first hydraulic device 41 can move the detection assembly 5 and the cleaning assembly 6 to a suitable working position (a position convenient for detecting the target material) by controlling the movement of the mounting plate 42.

[0044] In an embodiment of the present application, as Figure 2 and Figure 4 shown, the hopper closing device 3 includes: an electric push rod 31 and a closing plate 32. Among them, the electric push rod 31 is arranged on the outer wall of the guide hopper 2, the closing plate 32 is arranged at the output end of the electric push rod 31, and the upper surface of the closing plate 32 is slidably connected to the discharge end of the guide hopper 2.

[0045] Specifically, during the process of the driving device 51 driving the two detection bins 52 to move, in order to prevent the target material from falling on the moving detection bin 52 and / or the operating driving device 51.

[0046] During this process, the electric push rod 31 can drive the closing plate 32 to move. The upper surface of the closing plate 32 is slidably connected to the discharge end of the guide hopper 2 until the closing plate 32 blocks the discharge end of the guide hopper 2, so that the target material remains in the guide hopper 2. After the driving device 51 drives the two detection bins 52 to move, the closing plate 32 resets and the guide hopper 2 is reopened. This avoids the splashing of the target material and also avoids falling on the driving device 51 and affecting its operation and service life. It should be noted that the electric push rod 31 can adopt a high-speed electric push rod to improve the blocking efficiency of the discharge end of the guide hopper 2.

[0047] In an embodiment of the present application, as Figure 4 shown, the cleaning assembly 6 includes: a second hydraulic device 61 and a dust suction device 62. Among them, the second hydraulic device 61 is arranged on the driving assembly 4, and the dust suction device 62 is arranged on the second hydraulic device 61.

[0048] The detection component 5 is arranged between the material guiding hopper 2 and the dust suction device 62. Among them, the opening end of the detection bin 52 is arranged directly below the discharging end of the material guiding hopper 2.

[0049] Specifically, after the driving device 51 (for example, a motor) drives the two detection bins 52 to move to the end, the second hydraulic device 61 can control the dust suction device 62 to move to a suitable working position (the dust suction device 62 can be directly opposite to the opening end of the detection bin 52), and clean the remaining materials in the detection bin 52 through suction to ensure the accuracy of the next set of detection results.

[0050] It should be noted that there will be a large error between the first detection result of the detection bin described in the above embodiment and the subsequent detection data, so it is not included in the average value.

[0051] The controller can take the average value of multiple detection results, and compare this average value with the preset guiding weight of the feeding and weighing belt assembly to obtain an error value. The error is corrected and / or an alarm is issued through the error adjustment device in the feeding and weighing belt assembly. It should be noted that in the above embodiment, when the controller 7 takes the average value of multiple detection results and compares this average value with the preset (which can be adaptively adjusted by relevant personnel according to the type of target material, work plan, and work time limit) guiding weight, the difference between them is the error value.

[0052] After the controller 7 obtains the error value, it can perform adaptive adjustment through the error adjustment device in the material weighing belt assembly (such as the rotation speed of the conveyor belt, belt tension, etc.), reduce the error value to a reasonable threshold, and record each error value in the controller 7 at the same time, which is convenient for subsequent staff to conduct overall analysis of each error value. At the same time, an alarm is issued according to the size of the error value (an alarm is issued when the error value is large) to remind relevant personnel to come and check.

[0053] Furthermore, the controller 7 can control each component of the quantitative feeding and weighing device (such as the feeding and weighing belt assembly, hopper closing device, detection component, etc.) respectively (controlled according to the preset program or manually by relevant personnel).

[0054] It should be noted that a brake is installed on the driving device 51, and through the brake, the driving device 51 can be quickly stopped.

[0055] In summary, the quantitative feeding and weighing device of the embodiment of the present application can detect and calibrate the accuracy of conveying measurement during the process of quantitative feeding and weighing, so as to improve the accuracy of material conveying and ensure the quality of finished products.

[0056] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A quantitative feeding and weighing device, characterized in that, Including: A feeding and weighing belt assembly (1), a feeding hopper (2), a hopper closing device (3), a driving assembly (4), a detection assembly (5) and a cleaning assembly (6), wherein, The feeding hopper (2) and the driving assembly (4) are respectively arranged on the feeding and weighing belt assembly (1), two of the hopper closing devices (3) are respectively arranged on the feeding hopper (2), the detection assembly (5) and the cleaning assembly (6) are respectively arranged on the driving assembly (4), wherein, the cleaning assembly (6) is used to clean the remaining materials in the detection bin (52), and the cleaning assembly (6) timely cleans the residual materials in the detected detection assembly (5) according to a predetermined program to ensure the accuracy of the next detection result; The detection assembly (5) includes: a driving device (51), two symmetrically arranged detection bins (52) and two weighing devices (53), and the detection bins (52) and the weighing devices (53) are in one-to-one correspondence, wherein, The driving device (51) is arranged on the driving assembly (4), two of the detection bins (52) are respectively arranged on the driving assembly (4), and the weighing device (53) is arranged in the detection bin (52); The weighing device (53) is used to obtain the detection data of the weight of the target material in the detection bin (52) and send the detection data to the controller (7); The controller (7) is used to compare the average value of multiple valid detection data with the preset feeding weight of the feeding and weighing belt assembly (1) to obtain an error value, and correct the error through an error adjustment device in the feeding and weighing belt assembly (1) and / or issue an alarm; An error adjustment device may be provided on the feeding and weighing belt assembly (1); When the detection assembly (5) is required to perform detection, the target material will fall into the detection bin (52), the weighing device (53) detects the weight of the material falling into the detection bin (52), and at the preset time, the weighing device (53) will detect the total weight of the target material falling into the detection bin (52) within the preset time and send the detection result to the controller (7); After one detection of the weighing device (53) is completed, the driving device (51) can simultaneously drive the two detection bins (52) to flip, swap the position of the weighed detection bin (52) with the idle detection bin (52). During this process, the target material in the weighed detection bin (52) will fall into a suitable working position until the opening direction of the detection bin (52) is vertically facing the ground, and the cleaning assembly (6) can clean the remaining materials in the detection bin (52) after dumping the target material. The idle detection bin (52) will receive the target material and, after performing the next set of detections, will also send the detection result to the controller (7).

2. The quantitative feeding and weighing device according to claim 1, wherein The driving assembly (4) includes: a first hydraulic device (41) and a mounting plate (42), wherein, the first hydraulic device (41) is arranged on the feeding and weighing belt assembly (1), and the mounting plate (42) is arranged on the output end of the first hydraulic device (41).

3. The quantitative feeding and weighing device according to claim 1, wherein The hopper closing device (3) includes: an electric push rod (31) and a closing plate (32). Among them, the electric push rod (31) is arranged on the outer wall of the material guiding hopper (2), the closing plate (32) is arranged at the output end of the electric push rod (31), and the upper surface of the closing plate (32) is slidably connected to the discharging end of the material guiding hopper (2).

4. The quantitative feeding and weighing device according to claim 1, characterized in that, The cleaning assembly (6) includes: a second hydraulic device (61) and a dust suction device (62). Among them, the second hydraulic device (61) is arranged on the driving assembly (4), and the dust suction device (62) is arranged on the second hydraulic device (61).

5. The quantitative feeding and weighing device according to claim 1, characterized in that, The material guiding hopper (2), the hopper closing device (3), the driving assembly (4), the detection assembly (5) and the cleaning assembly (6) are respectively arranged below the discharging end of the feeding and weighing belt assembly (1).

6. The quantitative feeding and weighing device according to claim 4, characterized in that, The detection assembly (5) is arranged between the material guiding hopper (2) and the dust suction device (62). Among them, the open end of the detection bin (52) is arranged directly below the discharging end of the material guiding hopper (2).

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