Intelligent belt tension control device for belt wrapper

Abstract

The utility model discloses an intelligent belt tension control device for a belt wrapper. The intelligent belt tension control device comprises a belt wrapper body, a tensioning belt, a tension adjusting air cylinder, a pneumatic control unit and a PLC control system. One end of the tension adjusting cylinder is connected with a tensioning roller of the tensioning belt; and the pneumatic control unit is electrically connected with the tension adjusting cylinder. The belt tension and wrapping force can be accurately and automatically controlled in the process that the strip is wrapped on the reel, the very excellent effects of improving the yield of products, improving the operation efficiency of equipment and prolonging the service life of the equipment are achieved, and the winding assisting device is suitable for winding assisting of all materials within specifications, good in winding assisting effect, easy to operate, safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of belt winding aid technology, and more specifically to an intelligent belt winding aid belt tension control device. Background Technology

[0002] A belt winding aid is a device specifically designed for winding belts or strip materials. This application describes its use in winding sheet and strip materials. In the calendering process of sheet and strip materials, especially precision thin strips, it is crucial to ensure high-quality wrapping of the material onto the winding machine's reel at the very beginning. Different specifications and types of materials require ensuring the strip is wrapped smoothly and with sufficient tension on the reel to improve work efficiency and extend belt life.

[0003] For example, the prior art disclosed in announcement number CN104259248B is a belt winding aid, which specifically discloses "a belt winding aid, wherein the cylinder body of a rotary hydraulic cylinder is hinged to a frame translation mechanism, and its piston rod is hinged to the rear end of the frame; the lower middle end of the frame is hinged to the frame translation mechanism; the rear end of the cylinder body of a tensioning cylinder is hinged to the rear end of the frame, and its piston rod is hinged to the lower end of a tensioning frame, and the upper end of the tensioning frame is hinged to the upper end of the frame; a clamping swing arm is hinged to the other edge of the frame opposite to the upper edge of the inlet of the metal strip." The arm; the rear end of the cylinder body of the clamping cylinder is hinged to the lower end of the frame, and the front end of its piston rod is hinged to the lower end of the clamping swing arm; each tensioning support roller is respectively hinged to the lower end of the tensioning frame, the frame and the clamping swing arm; the annular belt is wound on each tensioning support roller. In the above technology, the belt tension is only driven by two sets of cylinders, the tensioning cylinder and the clamping cylinder, without setting pressure feedback device and intelligent control operation on the belt, so it is impossible to obtain precise tension control. Therefore, this application proposes an intelligent belt tension control device for belt winding aid to address the above shortcomings. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: how to provide a belt tension control device for a belt winding aid that can accurately and automatically control belt tension and wrapping force.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] An intelligent belt tension control device for a belt winder includes a belt winder body, a tension belt, a tension adjusting cylinder, a pneumatic control unit, and a PLC control system; the tension adjusting cylinder and the tension belt are both mounted on the belt winder body; and one end of the tension adjusting cylinder is connected to the tensioning roller of the tension belt.

[0007] The pneumatic control unit is electrically connected to the tension regulating cylinder, and the pneumatic control unit is also electrically connected to the PLC control system;

[0008] The pneumatic control unit includes an air circuit, a reversing control valve installed on the air circuit, and a pressure feedback component. One end of the reversing control valve is connected to the PLC control system, and the other end is connected to the tension regulating cylinder.

[0009] The tension of the tension belt is controlled by the PLC system, which calculates the tension and controls the reversing control valve to perform the corresponding action. At the same time, the control signal required by the pressure feedback component is given to achieve automatic adjustment of the tension belt tension.

[0010] This application controls the cylinder drive through a reversing control valve, and simultaneously corrects the processing tension in real time through feedback from the proportional pressure valve, remote control pressure valve, and pressure sensor within the pressure feedback component. This ensures that the cylinder output force is precisely maintained within the calculated tension of the control system. Therefore, through intelligent computer calculation, this application can accurately and automatically control the belt tension and wrapping force during the process of wrapping the strip onto the reel. This has an excellent effect on improving the product yield, enhancing equipment operating efficiency, and extending equipment service life. It is suitable for winding all materials within the specified specifications, with good winding effect, easy operation, and safety and reliability.

[0011] As a further aspect of the present invention: the pressure feedback component includes a proportional pressure valve and a remote control pressure valve, wherein the proportional pressure valve is connected to the remote control pressure valve, and the remote control pressure valve is located in the air path between the reversing control valve and the tension regulating cylinder.

[0012] As a further aspect of the present invention: the PLC control system controls the pressure output of the proportional pressure valve, and the pressure adjusted by the proportional pressure valve serves as the pilot control for the remote control pressure valve.

[0013] As a further aspect of the present invention, the proportional pressure valve is electrically connected to the PLC control system.

[0014] As a further aspect of the present invention: the pressure feedback component further includes a pressure sensor, which is installed in the air line between the reversing control valve and the tension regulating cylinder; the pressure sensor can feed back the real-time pressure on the circuit to the PLC control system.

[0015] As a further aspect of the present invention, the pressure sensor is electrically connected to the PLC control system.

[0016] As a further embodiment of the present invention: two sets of tension regulating cylinders are provided, and the reversing control valves are connected to the two sets of tension regulating cylinders through the two sets of air circuits respectively.

[0017] As a further aspect of the present invention: the pneumatic control unit further includes a pneumatic triplet for cleaning the air source, the pneumatic triplet and the reversing control valve are located on the same air line, and a ball valve is also provided on one side of the pneumatic triplet on the air line.

[0018] As a further aspect of the present invention, a flow regulating valve is also provided in the air path between the reversing control valve and the tension regulating cylinder.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This application controls the cylinder drive through a reversing control valve. Simultaneously, it uses feedback from the proportional pressure valve, remote control pressure valve, and pressure sensor within the pressure feedback assembly to correct the processing tension in real time, ensuring that the cylinder output force is precisely maintained within the calculated tension of the control system. Therefore, this application, through intelligent computer calculation, can accurately and automatically control the belt tension and wrapping force during the process of the strip being wrapped on the reel. This has an excellent effect on improving the product yield, enhancing equipment operating efficiency, and extending equipment service life. It is suitable for assisting the winding of all materials within the specified specifications, with good winding effect, easy operation, and safety and reliability.

[0021] 2. This application sets up a pressure sensor, which is a pressure detection and transmission element, to detect the working pressure in real time and transmit it to the PLC system for closed-loop pressure tuning, so as to ensure that the output force of the cylinder is accurately controlled by the PLC system.

[0022] 3. This application uses a pneumatic triplet connected to a reversing control valve. The pneumatic triplet can clean the air source in the air circuit, and the ball valve installed on it controls the on / off of the entire air source.

[0023] 4. This application sets up a proportional pressure valve and a remote control pressure valve. The proportional pressure valve receives a signal from the PLC system and adjusts the outlet pressure as the pilot control pressure of the remote control pressure valve. The pressure adjusted by the proportional pressure valve can be used as the pilot control pressure of the remote control pressure valve to set the outlet pressure of the remote control pressure valve to the belt tension control cylinder. Attached Figure Description

[0024] Figure 1 This is a system block diagram of an intelligent belt tension control device for a belt winder according to an embodiment of the present invention;

[0025] Figure 2 This is an assembly diagram of an intelligent belt tension control device for a belt winder according to an embodiment of the present invention;

[0026] Explanation of reference numerals in the attached drawings: 1. Tension regulating cylinder; 2. Proportional pressure valve; 3. Remote control pressure valve; 4. Reversing control valve; 5. Pressure sensor; 6. Pneumatic triplet; 7. Ball valve; 8. Flow regulating valve; 9. Belt winding aid body; 10. Tensioning belt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 2 An intelligent belt tension control device for a belt winder includes a belt winder body 9, a tension belt 10, a tension adjusting cylinder 1, a pneumatic control unit, a secondary system, and a PLC control system. It should be noted that the tension adjusting cylinder 1 and the tension belt 10 are both mounted on the belt winder body 9; and one end of the tension adjusting cylinder 1 is connected to the tension roller of the tension belt 10. Therefore, the tension adjusting cylinder 1 can drive the tension roller to adjust its position, thereby realizing the tension adjustment of the tension belt 10.

[0029] Furthermore, the pneumatic control unit is electrically connected to the tension regulating cylinder 1 to control the driving and pressure detection feedback of the tension regulating cylinder 1. The pneumatic control unit is also electrically connected to the PLC control system. The pneumatic control unit can feed back the detected data signals to the PLC control system for real-time data collection, analysis and reprocessing.

[0030] Reference Figure 1 and Figure 2 The output end of the tension control cylinder 1 is fixedly connected to one end of the tension roller of the tension belt 10. The size of the tension control cylinder 1 needs to accommodate and meet the tension requirements of belts of different specifications of the produced materials.

[0031] Reference Figure 1 In the description of this application, unless otherwise expressly specified and limited, the secondary system, namely the strip steel secondary system, is a system integrated into the rolling mill and serves as the control system for strip steel production and quality management. The secondary system is used to upgrade and optimize the PLC control system, collecting, analyzing, and reprocessing real-time data from the PLC control system through information technology.

[0032] Reference Figure 1The PLC control system receives the pressure signal from the pressure sensor 5 in the pneumatic control unit. Then, the secondary system receives the material information from the PLC system, compares and analyzes it, and transmits it back to the PLC control system. After processing, the PLC control system controls the reversing control valve 4 in the pneumatic control unit to perform the corresponding action, and at the same time provides the required control signal to the proportional pressure valve 2 in the pneumatic control unit.

[0033] Reference Figure 1 The pneumatic control unit includes an air circuit and a proportional pressure valve 2, a remote control pressure valve 3, a reversing control valve 4, a pressure sensor 5, a pneumatic triplet 6, a ball valve 7, and a flow regulating valve 8 installed on the air circuit. The above components are installed near the winding aid body 9.

[0034] Furthermore, one end of the reversing control valve 4 is connected to the PLC control system, and the other end is connected to two sets of air lines. Each air line is divided into two and connected to two tension regulating cylinders 1 respectively, which are used to control the extension or retraction of the tension regulating cylinders 1. A flow regulating valve 8 is set on each air line, which controls the movement speed of the cylinder. That is, the PLC control system can control the operation of the tension regulating cylinders 1 through the reversing control valve 4. The tension regulating cylinders 1 then control the tension rollers on the tension belt 10 to extend and retract, thereby controlling the tension of the tension belt 10.

[0035] Reference Figure 1 A remote control pressure valve 3 is installed in the circuit between the reversing control valve 4 and the tension regulating cylinder 1 to control the pressure in this circuit. The remote control pressure valve 3 is electrically connected to the proportional pressure valve 2, which in turn is electrically connected to the PLC control system. The PLC control system controls the pressure output of the proportional pressure valve 2. The pressure adjusted by the proportional pressure valve 2 serves as the pilot control of the remote control pressure valve 3, thereby controlling the pressure output of the circuit between the reversing control valve 4 and the tension regulating cylinder 1.

[0036] It should be noted that the tension of the tension belt 10 is controlled by the PLC system after calculation, which controls the reversing control valve 4 to make corresponding actions, and at the same time provides the required pressure control signal to the proportional pressure valve 2 to realize the output tension of the tension regulating cylinder 1, and finally realizes the automatic adjustment of the tension of the tension belt 10.

[0037] Reference Figure 1A pressure sensor 5 is installed in the circuit between the remote control pressure valve 3 and the tension regulating cylinder 1. The pressure sensor 5 is electrically connected to the PLC control system. The pressure sensor 5 is a pressure detection and transmission element. It detects the working pressure in the circuit in real time and feeds back the real-time pressure signal to the PLC system. The PLC system compares the pressure here with the pressure of the given proportional pressure valve 2, thereby realizing closed-loop pressure tuning and enabling accurate pressure detection, feedback and regulation.

[0038] Reference Figure 1 On the other end of the air circuit away from the tension regulating cylinder 1, the reversing control valve 4 is also equipped with a pneumatic triplet 6 and a ball valve 7. The pneumatic triplet 6 is used to clean the air source in this circuit, and a ball valve 7 is also provided on one side of the pneumatic triplet 6 at the end of this circuit. The ball valve 7 controls the on / off of the entire air source.

[0039] Reference Figure 1 and Figure 2 The tension belt 10 is mounted on the fixed arm of the belt winding aid body 9 via a tension roller and a guide roller. When the tension cylinder 1 extends, it can drive the belt tension roller to tension the belt. Conversely, the belt tension is unloaded.

[0040] The operation flow of the pneumatic control unit of this application is as follows: When the assist button is pressed, the PLC control system controls the reversing control valve 4 to work. The reversing control valve 4 controls the tension adjusting cylinder 1 to push the tensioning roller to realize the tension loading and unloading of the tension belt 10. The PLC control system gives the required tension signal to the proportional pressure valve 2 to adjust the outlet pressure of the proportional pressure valve 2. The pressure after adjustment by the proportional pressure valve 2 is used as the pilot control pressure of the remote control pressure valve 3 to set the outlet pressure of the remote control pressure valve 3 to the belt tension adjusting cylinder 1.

[0041] Subsequently, the outlet pressure sensor 5 feeds back the real-time pressure to the PLC control system for display and for real-time correction of the outlet tension; at the same time, the pneumatic triplet 6 cleans the air source in the air path.

[0042] The specific operating principle of this application is as follows:

[0043] After the secondary system collects material specifications and material information from the PLC system, it calculates and sends the corresponding tension information to the PLC system for processing. When the operator presses the assist button, the belt assist device 9 begins to move via the reversing control valve 4. When the assist arm reaches the reel position, the PLC system sends the required tension signal to the proportional pressure valve 2 to adjust the outlet pressure of the proportional pressure valve 2. The pressure adjusted by the proportional pressure valve 2 serves as the pilot control pressure of the remote control pressure valve 3, which is used to set the outlet pressure of the remote control pressure valve 3 to the belt tension control cylinder 1. The outlet pressure sensor 5 feeds back the real-time pressure to the PLC system for display and also for real-time correction of the outlet tension, ensuring that the output of the tension regulating cylinder 1 is accurately maintained within the tension calculated by the secondary system. After the assist action is completed, the tension regulating cylinder 9 retracts via the reversing control valve 4. When the assist arm retracts from the reel position, the PLC system sends a very small signal to the proportional pressure valve 2 to maintain the minimum pressure for belt tension, preventing belt deviation from affecting the next assist action.

[0044] This application achieves precise automatic control of belt tension and wrapping force during the strip wrapping process on the reel, resulting in excellent improvements in product yield, equipment operating efficiency, and equipment lifespan. It is suitable for winding all materials within the specified specifications, providing excellent winding effect, ease of operation, and safety and reliability. Through intelligent computer algorithms, it can precisely and automatically control belt tension and wrapping force during the strip wrapping process on the reel, significantly improving product yield, equipment operating efficiency, and extending equipment lifespan. Furthermore, it has broad market prospects for application and widespread adoption in non-ferrous and metallurgical equipment.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart belt tension control device for a belt winder, characterized in that, It includes a belt winder body (9), a tension belt (10), a tension adjusting cylinder (1), a pneumatic control unit and a PLC control system; the tension adjusting cylinder (1) and the tension belt (10) are both installed on the belt winder body (9); and one end of the tension adjusting cylinder (1) is connected to the tensioning roller of the tension belt (10). The pneumatic control unit is electrically connected to the tension regulating cylinder (1), and the pneumatic control unit is also electrically connected to the PLC control system; The pneumatic control unit includes an air circuit, a reversing control valve (4) installed on the air circuit, and a pressure feedback component. One end of the reversing control valve (4) is connected to the PLC control system, and the other end is connected to the tension regulating cylinder (1).

2. The intelligent belt tension control device for a belt winder according to claim 1, characterized in that: The pressure feedback component includes a proportional pressure valve (2) and a remote control pressure valve (3), wherein the proportional pressure valve (2) is connected to the remote control pressure valve (3), and the remote control pressure valve (3) is located in the air path between the reversing control valve (4) and the tension regulating cylinder (1).

3. The intelligent belt tension control device for a belt winder according to claim 2, characterized in that: The PLC control system controls the pressure output of the proportional pressure valve (2), and the pressure adjusted by the proportional pressure valve (2) serves as the pilot control for the remote control pressure valve (3).

4. The intelligent belt tension control device for a belt winder according to claim 2, characterized in that: The proportional pressure valve (2) is electrically connected to the PLC control system.

5. The intelligent belt tension control device for a belt winder according to claim 2, characterized in that: The pressure feedback component also includes a pressure sensor (5), which is installed in the air line between the reversing control valve (4) and the tension regulating cylinder (1); the pressure sensor (5) can feed back the real-time pressure in the air line to the PLC control system.

6. The intelligent belt tension control device for a belt winder according to claim 5, characterized in that: The pressure sensor (5) is electrically connected to the PLC control system.

7. The intelligent belt tension control device for a belt winder according to claim 1, characterized in that: The tension regulating cylinder (1) is provided in two sets, and the reversing control valve (4) is connected to the two sets of tension regulating cylinders (1) through the two sets of air circuits respectively.

8. The intelligent belt tension control device for a belt winder according to claim 5, characterized in that: The pneumatic control unit also includes a pneumatic triplet (6) for cleaning the air source. The pneumatic triplet (6) and the reversing control valve (4) are located on the same air path, and a ball valve (7) is also provided on one side of the pneumatic triplet (6) on the air path.

9. The intelligent belt tension control device for a belt winder according to claim 5, characterized in that: A flow regulating valve (8) is also provided in the air path between the reversing control valve (4) and the tension regulating cylinder (1).

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