High-precision dynamic weighing metering device

Abstract

The utility model belongs to the field of industrial metering, particularly relates to a high-precision dynamic weighing metering device, and aims to solve the problems that the transmission capability and the transmission quality of a belt are influenced by the reduction of friction force in the transmission process caused by the looseness of the existing belt, so that errors are generated during material metering, the metering precision is reduced, and the weighing precision is reduced. In order to solve the problems of lack of timely reminding and adjustment in the prior art, the utility model provides the following scheme that the belt scale comprises a belt scale, the belt scale comprises a frame body and two rollers which are rotatably arranged on the two sides in the frame body respectively, the outer walls of the two rollers are sleeved with the same belt in a transmission mode, and a motor is fixedly arranged on one side of the frame body; and the output shaft of the motor is fixedly arranged with one end of one of the rollers, so that the tightness of the belt can be detected and timely, an operator is reminded that the belt needs to be maintained, the tightness of the belt can be directly adjusted, the smooth operation of the metering is ensured, the accuracy of the metering is ensured, and the device has the advantages of simple structure and convenience in operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial measurement technical field especially relates to a high accuracy dynamic weighing measurement device. BACKGROUND

[0002] Belt scale as a kind of common dynamic weighing equipment, is widely used in mine, port, factory and other material conveying and measurement occasion, can accurately, continuously weigh and measure material, specifically, when material is conveyed, material and belt will be pressed on weighing roller, weighing roller again passes the pressure to weighing sensor, weighing sensor converts pressure signal into electric signal and exports, these electric signals are processed, the weight information of material can be obtained, to realize continuous measurement material flow;

[0003] However, it is found in practice that, due to long-term use, the belt will be relaxed due to wear, aging and other reasons, the belt relaxation will cause the friction force to decrease in the transmission process, and then affect the conveying capacity and transmission quality of the belt, so as to produce error when measuring material, reduce the accuracy of measurement, the existing lack of timely reminding and adjusting effect makes it difficult to directly repair and continue to use temporarily, so as to ensure the smooth progress of this measurement. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the existing technology in prior art there is belt relaxation will cause the friction force to decrease in the transmission process, and then affect the conveying capacity and transmission quality of the belt, so as to produce error when measuring material, reduce the accuracy of measurement, the existing lack of timely reminding and adjusting the shortcoming, and propose a kind of high accuracy dynamic weighing measurement device.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of high accuracy dynamic weighing measurement device, including belt scale, the belt scale includes frame body and two respectively rotating settings in the inside two sides of frame body roller, the same belt is transmissionally sleeved on the outer wall of two roller, motor is fixedly arranged on the side of frame body, and the output shaft of motor is fixedly arranged with one end of one of roller, the inside of frame body is installed with multiple weighing rollers and weighing sensors, and weighing roller and weighing sensor are located in the inside of belt;

[0007] The utility model provides a protective mechanism for detecting and adjusting the tightness of the belt, which is arranged in the interior of the frame body, and comprises a micro switch and a buzzer, both ends of both sides of the interior of the frame body are slidably provided with sliding plates, the bottom of each sliding plate is fixedly provided with a lower connecting strip, the same lower plate is fixedly arranged between the four lower connecting strips, and the lower plate is located below the belt, the micro switch is installed on the top of the lower plate, and the buzzer is installed on the bottom of the lower plate.

[0008] In a possible design, the protective mechanism further comprises a tensioning roller, the same upper plate is fixedly arranged between the four sliding plates, and the upper plate is located in the interior of the belt, and the tensioning roller is rotatably arranged in the interior of the upper plate, and the outer wall of the tensioning roller cooperates with the inner wall of the belt.

[0009] In a possible design, the protective mechanism further comprises a scraper, the top of the lower plate is provided with a mounting hole, a mounting plate is inserted into the interior of the mounting hole, and the scraper is fixedly arranged on the top of the mounting plate, and the scraper cooperates with the outer wall of the belt.

[0010] In a possible design, the interior of the mounting plate is slidably provided with an insertion plate, one end of the insertion plate is slidably inserted into the interior of the lower plate, the interior of the mounting plate is provided with a compression spring, and both ends of the compression spring are fixedly arranged on one side of the insertion plate and the inner wall of the mounting plate respectively.

[0011] In a possible design, one side of each of the two lower connecting strips on the same side is fixedly provided with a connecting plate, one end of each of the two connecting plates is fixedly provided with the same sliding seat, and the sliding seat is slidably arranged on one side of the frame body, one side of the frame body is fixedly provided with an electric push rod, and the end of the telescopic shaft of the electric push rod is fixedly arranged on the top of the sliding seat.

[0012] In a possible design, the top of the sliding seat is slidably provided with a protective shell, one end of the mounting plate is slidably inserted into the sliding seat, one side of the mounting plate is provided with a insertion hole, the interior of the protective shell is fixedly provided with an insertion rod, and the insertion rod cooperates with the insertion hole.

[0013] In a possible design, the outer wall of the belt is fixedly provided with a protective strip on both sides.

[0014] In the application, the motor drives the roller to rotate to drive the belt transmission, thereby realizing the transmission of the material on the surface of the belt. When the material is conveyed, the material and the belt will be pressed on the weighing carrier roller, the weighing carrier roller will transmit the pressure to the weighing sensor, the weighing sensor will convert the pressure signal into an electric signal for output. After processing the electric signal, the weight information of the material can be obtained, thereby realizing continuous measurement of the material flow. For long-term use of the device, the belt will be loosened due to factors such as wear and aging. When the bottom of the loosened belt is lowered, the micro switch will be touched, thereby pressing the internal trigger rod, the contact is closed, and the buzzer is powered on to remind that the belt is loosened too much and needs to be maintained and replaced. At this time, the electric push rod is started, the electric push rod will drive the sliding seat to move downward, the connecting plate is driven by the sliding seat to move downward, the lower connecting strip is driven by the connecting plate to move downward, the lower plate and the upper plate are driven by the lower connecting strip to move downward, the lower plate moving downward will drive the micro switch to be separated from the belt, thereby stopping the buzzer, and the upper plate moving downward will drive the tensioning roller to move, the tensioning roller abuts against the belt, thereby adjusting the tension of the belt, so that the device can be temporarily used. When the material on the surface of the belt is weighed and measured or the batch of material is measured, the device is replaced. When the belt is driven, the scraper will be touched, thereby preventing foreign matters on the surface of the belt from accidentally touching the micro switch.

[0015] In the high-precision dynamic weighing and measuring device, the belt scale can achieve continuous measurement of the material flow, is suitable for conveying and measuring various bulk materials and piece goods, and has the characteristics of simple structure, convenient operation and easy maintenance.

[0016] In the high-precision dynamic weighing and measuring device, when the belt is loosened, the buzzer alarm can be sounded in time, thereby reminding the staff that the device needs to be repaired, and the tightness can be automatically adjusted, so that the device can still operate temporarily, thereby ensuring the smooth measurement.

[0017] In the high-precision dynamic weighing and measuring device, when the belt is loosened, the buzzer alarm can be sounded in time, thereby reminding the staff that the device needs to be repaired, and the tightness can be automatically adjusted, so that the device can still operate temporarily, thereby ensuring the smooth measurement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A high-precision dynamic weighing and measuring device is provided.

[0019] Figure 2 A high-precision dynamic weighing and measuring device is provided.

[0020] Figure 3 This utility model Figure 2 Enlarged view of the structure of section A;

[0021] Figure 4 This is a bottom view of the structure of a high-precision dynamic weighing and measuring device proposed in this utility model.

[0022] In the diagram: 1. Frame; 2. Roller; 3. Belt; 4. Motor; 5. Protective strip; 6. Weighing sensor; 7. Tension roller; 8. Weighing idler roller; 9. Slide plate; 10. Lower connecting strip; 11. Lower plate; 12. Buzzer; 13. Micro switch; 14. Upper plate; 15. Scraper; 16. Mounting hole; 17. Mounting plate; 18. Compression spring; 19. Insert plate; 20. Insertion hole; 21. Connecting plate; 22. Slide seat; 23. Insert rod; 24. Electric push rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Reference Figure 1 A metering device includes a belt scale, which comprises a frame 1 and two rollers 2 rotatably disposed on opposite sides inside the frame 1. The outer walls of the two rollers 2 are fitted with the same belt 3 for conveying materials. A motor 4 is fixedly mounted on one side of the frame 1, and the output shaft of the motor 4 is fixedly connected to one end of one of the rollers 2. The motor 4 drives the roller 2 to rotate, thereby driving the belt 3 to circulate.

[0026] Reference Figure 2 Inside the frame 1, multiple weighing rollers 8 and weighing sensors 6 are installed. These components are located inside the belt 3 and are used to dynamically weigh the material when the belt 3 is conveying the material. The weighing rollers 8 are used to support the belt 3 and the material, while the weighing sensors 6 are used to detect the weight of the material on the belt 3 and transmit the weight signal to the control system for processing.

[0027] Specifically, when the material is being conveyed, the material and the belt 3 will press on the weighing idler 8, and the weighing idler 8 will then transmit the pressure to the weighing sensor 6. The weighing sensor 6 will convert the pressure signal into an electrical signal and output it. After processing, the weight information of the material can be obtained, thereby realizing continuous measurement of material flow.

[0028] This application can be used in the field of industrial metrology, or in other fields applicable to this application.

[0029] Example 2

[0030] refer to Figure 2 An improvement upon Embodiment 1: A high-precision dynamic weighing and metering device, applied in the field of industrial metrology, incorporates a protective mechanism inside the frame 1 to detect and adjust the tension of the belt 3. This protective mechanism includes a micro switch 13 and a buzzer 12. Slide plates 9 are slidably mounted on both ends of the inner sides of the frame 1. Lower connecting strips 10 are fixedly mounted at the bottom of each slide plate 9. A common lower plate 11 is fixedly mounted between the four lower connecting strips 10, located below the belt 3. The micro switch 13 is mounted on top of the lower plate 11. When the belt 3 is too loose, causing the lower plate 11 to rise and touch the micro switch 13, the contacts of the micro switch 13 close, energizing the buzzer 12 to sound an alarm, indicating the need to adjust the tension of the belt 3.

[0031] In addition, the protective mechanism also includes a tension roller 7. A common upper plate 14 is fixedly installed between the four slide plates 9. The tension roller 7 is rotatably mounted inside the upper plate 14, and its outer wall engages with the inner wall of the belt 3. The tension of the belt 3 can be adjusted by changing the position of the tension roller 7.

[0032] Reference Figure 3 To clean the material adhering to the outer wall of the belt 3, a scraper 15 is provided on the top of the lower plate 11. A mounting hole 16 is provided on the top of the lower plate 11, and a mounting plate 17 is inserted into the mounting hole 16. The scraper 15 is fixedly mounted on the top of the mounting plate 17. When the belt 3 moves, the scraper 15 scrapes off any material that may be adhering to the outer wall of the belt 3, preventing foreign objects from touching the micro switch 13.

[0033] An insert plate 19 is slidably disposed inside the mounting plate 17. One end of the insert plate 19 slides through the interior of the lower plate 11. A compression spring 18 is disposed inside the mounting plate 17, with its two ends fixed to one side of the insert plate 19 and the inner wall of the mounting plate 17, respectively. Through the elastic force of the compression spring 18, the insert plate 19 can be inserted into the interior of the lower plate 11, thereby fixing the position of the scraper 15. When it is necessary to disassemble the scraper 15 for cleaning and replacement, simply press down the insert plate 19.

[0034] Reference Figure 4 To facilitate adjustment of the slide plate 9's position, connecting plates 21 are fixedly installed on one side of each of the two lower connecting strips 10 located on the same side. A common slide block 22 is fixedly installed at one end of each connecting plate 21, and the slide block 22 is slidably mounted on one side of the frame 1. An electric push rod 24 is fixedly installed on one side of the frame 1, and the end of the telescopic shaft of the electric push rod 24 is fixedly mounted on the top of the slide block 22. By controlling the extension and retraction of the electric push rod 24, the slide block 22 and the slide plate 9 can be moved to slide inside the frame 1, thereby adjusting the positions of the tension roller 7, the micro switch 13, and the scraper 15.

[0035] To further secure the scraper 15 and protect the electric push rod 24, a protective shell is provided on the top of the slide block 22. One end of the mounting plate 17 slides through the slide block 22, and an insertion hole 20 is provided on one side of the mounting plate 17. An insertion rod 23 is fixedly installed inside the protective shell, and the insertion rod 23 cooperates with the insertion hole 20. When the protective shell is slid, the insertion rod 23 will be inserted into the insertion hole 20, thereby fixing the mounting plate 17 on which the scraper 15 is mounted. The protective shell can also protect the externally mounted electric push rod 24.

[0036] Protective strips 5 are fixedly installed on both sides of the outer wall of belt 3. The protective strips 5 can prevent materials from falling from both sides of belt 3.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 4, the weighing sensor 6, the buzzer 12, the micro switch 13 and the electric push rod 24 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision dynamic weighing and measuring device, characterized in that, include: The belt scale includes a frame (1) and two rollers (2) that are rotatably disposed on both sides inside the frame (1). The outer walls of the two rollers (2) are fitted with the same belt (3). A motor (4) is fixedly disposed on one side of the frame (1), and the output shaft of the motor (4) is fixedly disposed with one end of one of the rollers (2). Multiple weighing rollers (8) and weighing sensors (6) are installed inside the frame (1), and the weighing rollers (8) and weighing sensors (6) are located inside the belt (3). A protective mechanism is used to detect and adjust the tension of the belt (3). The protective mechanism is set inside the frame (1). The protective mechanism includes a micro switch (13) and a buzzer (12). Slide plates (9) are slidably set at both ends of the two sides inside the frame (1). A lower connecting strip (10) is fixedly set at the bottom of the slide plate (9). The same lower plate (11) is fixedly set between the four lower connecting strips (10). The lower plate (11) is located below the belt (3). The micro switch (13) is installed on the top of the lower plate (11). The buzzer (12) is installed at the bottom of the lower plate (11). The contacts of the micro switch (13) are connected to the positive and negative poles of the buzzer (12).

2. The high-precision dynamic weighing and metering device according to claim 1, characterized in that, The protective mechanism also includes a tension roller (7), and the same upper plate (14) is fixedly arranged between the four slide plates (9), and the upper plate (14) is located inside the belt (3). The tension roller (7) is rotatably arranged inside the upper plate (14), and the outer wall of the tension roller (7) cooperates with the inner wall of the belt (3).

3. The high-precision dynamic weighing and metering device according to claim 2, characterized in that, The protective mechanism also includes a scraper (15), and the top of the lower plate (11) is provided with a mounting hole (16). A mounting plate (17) is inserted into the mounting hole (16). The scraper (15) is fixedly installed on the top of the mounting plate (17). The scraper (15) cooperates with the outer wall of the belt (3).

4. The high-precision dynamic weighing and metering device according to claim 3, characterized in that, An insert plate (19) is slidably disposed inside the mounting plate (17). One end of the insert plate (19) slides through into the interior of the lower plate (11). A compression spring (18) is disposed inside the mounting plate (17), and the two ends of the compression spring (18) are respectively fixedly disposed on one side of the insert plate (19) and the inner wall of the mounting plate (17).

5. A high-precision dynamic weighing and metering device according to claim 4, characterized in that, A connecting plate (21) is fixedly installed on one side of each of the two lower connecting strips (10) located on the same side. The same slide (22) is fixedly installed at one end of the two connecting plates (21), and the slide (22) is slidably installed on one side of the frame (1). An electric push rod (24) is fixedly installed on one side of the frame (1), and the end of the telescopic shaft of the electric push rod (24) is fixedly installed on the top of the slide (22).

6. A high-precision dynamic weighing and metering device according to claim 5, characterized in that, A protective shell is slidably provided on the top of the slide block (22), and one end of the mounting plate (17) slides through the slide block (22). An insertion hole (20) is provided on one side of the mounting plate (17). An insertion rod (23) is fixedly provided inside the protective shell, and the insertion rod (23) cooperates with the insertion hole (20).

7. The high-precision dynamic weighing and metering device according to claim 1, characterized in that, Protective strips (5) are fixedly installed on both sides of the outer wall of the belt (3).

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