Belt weigher calibration device
By designing an automated belt scale verification device, using a code lifting machine and PLC automatic verification program, the tiring and dangerous problems of traditional verification methods are solved, and an efficient and safe verification process is achieved.
Patent Information
- Application Number
- CN202421025178.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The traditional electronic belt scale verification method requires manual handling and assembly of chain codes, which is tiring and dangerous, and usually requires multiple people to cooperate to complete it, which is laborious.
A belt scale verification device is designed, using the automatic verification program of the code lifter and PLC, and the operation of the telescopic rod of the code lifter is controlled through the control box to achieve automatic verification and avoid the danger of manual direct contact.
It improves work efficiency, reduces the labor intensity of employees, ensures the life safety of workers, eliminates accidents, and greatly shortens the time required for verification of electronic belt scales.
Smart Images
Figure CN222505574U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of belt scales, in particular to a belt scale calibration device. Background Art
[0002] Electronic belt scale is an intelligent dynamic scale installed on the belt conveyor to continuously and dynamically weigh bulk solid materials without interrupting the material flow. As a measurement device, it is widely used in metallurgy, coal, chemical industry, building materials, terminal loading and unloading, power plants and other industries. In order to ensure the measurement accuracy, the electronic belt scale must be calibrated regularly.
[0003] The traditional calibration method uses hanging chain codes. Each time a calibration is performed, the chain codes must be moved from the warehouse to the electronic belt scale. A pair of chain codes is 3 meters long, weighs 80 kilograms per meter, and the total weight is 240 kilograms. It is very tiring to carry. What is even more terrible is that the codes must be hung manually during calibration, because the chain codes are difficult to carry and assemble. If you are not careful, your hands or feet will be pinched. The hanging code calibration of the electronic belt scale often requires the cooperation of multiple people, which is quite laborious. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a belt scale calibration device, which solves the problem that the traditional calibration method is to use a hanging chain code. The chain code must be carried from the warehouse to the electronic belt scale for each calibration, which is very tiring to carry. What is more terrible is that the chain code must be hung manually during calibration, because the chain code is difficult to carry and assemble, and the hands or feet may be pinched or injured if one is not careful. The hanging code calibration of the electronic belt scale often requires the cooperation of multiple people, which is a relatively laborious technical problem.
[0006] (II) Technical solution
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] A belt scale calibration device comprises an electronic belt scale bracket, on which an electronic belt scale bracket is mounted by bolts, both ends of the electronic belt scale bracket are provided with electronic belt scale frame load-bearing beams, and weighing sensors are symmetrically arranged inside the two electronic belt scale frame load-bearing beams, and both ends of the electronic belt scale bracket are respectively provided with code lifting machine mounting plates, and both the two code lifting machine mounting plates are provided with code lifting motors and code lifting machine rods.
[0009] Preferably: a control box for controlling the code lifting motor is provided on the code lifting motor, and a control circuit and a PLC automatic verification program are installed inside the control box (the PLC automatic verification program refers to the process of automatically verifying the equipment or production process by writing a program and using the PLC control system. Such a program usually includes the following steps: 1. Setting verification items; 2. Writing a verification program; 3. Sensor access; 4. Verification logic; 5. Verification result processing).
[0010] Preferably: a code lifting machine limit switch is installed on both of the two code lifting machine rods.
[0011] Preferably: a telescopic rod of a code lifting machine is arranged at the front end of the code lifting motor, a code lifting machine bracket is arranged at the upper end of the telescopic rod of the code lifting machine, a standard bar code is placed on the code lifting machine bracket, and the electronic belt scale bracket is suspended on the load-bearing beam of the electronic belt scale frame through a weighing sensor.
[0012] (III) Beneficial effects
[0013] 1. During calibration, the user controls the telescopic rod of the code lifting machine through the control box. A program is programmed on the PLC in the control box, and calibration can be performed automatically after startup, which ensures the life safety of the operators and prevents accidents; improves work efficiency; reduces the labor intensity of employees, and greatly shortens the time required for the calibration of the electronic belt scale. It has the characteristics of sophisticated structure and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.
[0015] Figure 1 This is a verification flow chart of the utility model;
[0016] Figure 2 It is a three-dimensional structural diagram of the utility model;
[0017] Figure 3 It is a cross-sectional structural diagram of the utility model;
[0018] Figure 4 This is a structural diagram of the control box of the utility model.
[0019] Legend: 1. Standard bar code; 2. Code lifting machine bracket; 3. Code lifting machine telescopic rod; 4. Code lifting machine limit switch; 5. Code lifting machine rod; 6. Code lifting motor; 7. Code lifting machine mounting plate; 8. Electronic belt scale bracket; 9. Electronic belt scale frame load-bearing beam; 10. Electronic belt scale bracket; 11. Weighing sensor; 12. Control box. DETAILED DESCRIPTION
[0020] The embodiment of the present application provides a belt scale calibration device, which effectively solves the problem that the traditional calibration method uses a hanging chain code. Each time a calibration is performed, the chain code must be carried from the warehouse to the electronic belt scale, which is very tiring. What is more terrible is that the code is hung manually during calibration, because the chain code is difficult to carry and assemble, and a slight carelessness may cause a hand or foot to be pinched. The hanging code calibration of the electronic belt scale often requires the cooperation of multiple people, which is relatively laborious. During calibration, the user controls the operation of the telescopic rod of the code lifting machine through the control box, and a program is programmed on the PLC in the control box. After startup, the calibration can be automatically performed, which ensures the life safety of the operating personnel and prevents the occurrence of accidents; improves work efficiency; reduces the labor intensity of employees, and greatly shortens the time required for the calibration of the electronic belt scale. It has the characteristics of exquisite structure and good use effect. Example
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the problem that the traditional calibration method is to use a hanging chain code. Each time the chain code is calibrated, it must be carried from the warehouse to the electronic belt scale, which is very tiring to carry. What is more terrible is that the code is manually hung during calibration, because the chain code is difficult to carry and assemble, and the slightest carelessness will cause the hand or foot to be pinched. The hanging code calibration of the electronic belt scale often requires the cooperation of multiple people, which is a relatively laborious technical problem. The overall idea is as follows: a belt scale calibration device, including an electronic belt scale bracket 10, an electronic belt scale bracket 8 is installed on the electronic belt scale bracket 10 by bolts, and electronic belt scale frame load-bearing beams 9 are provided at both ends of the electronic belt scale bracket 8, and the two electronic belt scale frame load-bearing beams 9 are inside The electronic belt scale bracket 10 is symmetrically provided with weighing sensors 11, and the two ends of the electronic belt scale bracket 10 are respectively installed with a lifting machine mounting plate 7, and the two lifting machine mounting plates 7 are installed with a lifting motor 6 and a lifting machine rod 5. The lifting motor 6 is provided with a control box 12 for controlling it, and the control box 12 is installed with a control circuit and a PLC automatic verification program. The two lifting machine rods 5 are installed with a lifting machine limit switch 4, and the front end of the lifting motor 6 is provided with a lifting machine telescopic rod 3, and the upper end of the lifting machine telescopic rod 3 is provided with a lifting machine bracket 2, and a standard rod code 1 is placed on the lifting machine bracket 2, and the standard rod code 1 is a standard 100 kg. The electronic belt scale bracket 8 is suspended on the electronic belt scale frame load-bearing beam 9 through the weighing sensor 11.
[0022] In view of the problems existing in the prior art, the utility model provides a belt scale calibration device. During calibration, the user controls the operation of the telescopic rod of the code lifting machine through the control box. A program is programmed on the PLC in the control box, and calibration can be automatically performed after startup, thereby ensuring the life safety of the operating personnel and preventing accidents; improving work efficiency; reducing the labor intensity of employees, and greatly shortening the time required for the calibration of the electronic belt scale. The utility model has the characteristics of sophisticated structure and good use effect.
[0023] Working principle:
[0024] The first step is to start the belt when the belt stops (if the belt is in the running state, this operation is not required). At this time, the switch on the control box 12 can be turned to the center, and then the "Start Verification" button on the control box 12 can be pressed. At this time, the control box 12 will control the telescopic rods 3 of the code lifting machines on the two code lifting motors 6 to shorten synchronously. At this time, the standard bar code 1 goes down. When the standard bar code 1 is placed on the bracket on the electronic belt scale bracket 8, the code lifting machine limit switch 4 senses that the position is appropriate and immediately sends a signal to stop continuing to go down. At this time, the weight of the standard bar code 1 is all applied to the weighing sensor 11. At this point, the PLC executes the automatic verification program and the electronic belt scale performs automatic verification; when the verification is completed, the control box 12 controls the telescopic rods 3 of the code lifting machines on the two code lifting motors 6 to extend synchronously. At this time, the standard bar code 1 goes up. When the standard bar code 1 completely leaves the bracket on the electronic belt scale bracket 8, the code lifting machine limit switch 4 senses that the position is appropriate and immediately sends a signal to stop continuing to stop. The entire electronic belt scale automatic verification work is completed.
[0025] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.
Claims
1. A belt scale calibration device, comprising an electronic belt scale bracket (10), an electronic belt scale bracket (8) being mounted on the electronic belt scale bracket (10) by bolts, and electronic belt scale frame bearing beams (9) being arranged at both ends of the electronic belt scale bracket (8), characterized in that: Weighing sensors (11) are symmetrically arranged inside the two electronic belt scale frame load-bearing beams (9), and a code lifting machine mounting plate (7) is respectively installed at both ends of the electronic belt scale bracket (10), and a code lifting motor (6) and a code lifting machine rod (5) are installed on the two code lifting machine mounting plates (7).
2. A belt scale calibration device as claimed in claim 1, characterized in that: The code lifting motor (6) is provided with a control box (12) for controlling the code lifting motor (6).
3. A belt scale calibration device as claimed in claim 2, characterized in that: The control box (12) is internally installed with a control circuit and a PLC automatic verification program.
4. A belt scale calibration device as claimed in claim 1, characterized in that: The two code lifting machine rods (5) are both equipped with code lifting machine limit switches (4).
5. A belt scale calibration device as claimed in claim 2, characterized in that: A code lifting machine telescopic rod (3) is arranged at the front end of the code lifting motor (6), and a code lifting machine bracket (2) is arranged at the upper end of the code lifting machine telescopic rod (3).
6. A belt scale calibration device as claimed in claim 5, characterized in that: A standard bar code (1) is placed on the code lifting machine bracket (2), and the electronic belt scale bracket (8) is suspended on the electronic belt scale frame load-bearing beam (9) via a weighing sensor (11).