Position adjustable electric pulse assisted rolling and straightening power supply device and method

Abstract

The present application relates to the technical field of plastic forming equipment, and particularly relates to a position-adjustable electric pulse auxiliary rolling and straightening power supply device and method, which comprises a rack, conveying assemblies fixed to the front and back of the rack, movable lifting power supply assemblies fixed to the top of the conveying assemblies, and a connection between the end of an upper conductive roller in the power supply assembly and a recessed rotary power supply connector, wherein any conveying roller before or after a rolling mill and a straightening machine can be used as a lower conductive roller according to requirements, the end of the lower conductive roller is also connected with a convex rotary power supply connector, the upper and lower conductive rollers before and after the rack are connected with a rotary connector and a pulse power supply to form a complete current loop, and the conductive roller and the right side are provided with a pressure monitoring assembly and an infrared temperature monitoring assembly. The present application can realize uniform power supply for multi-specification plates, and the effective power supply distance before and after the plate is arbitrarily adjustable.

Description

Technical Field

[0001] This invention relates to the field of plastic forming equipment technology, and in particular to a position-adjustable electrical pulse-assisted rolling and straightening energizing device and method. Background Technology

[0002] With the development of new materials and the increasing demand for their application in complex working conditions, such as cutting-edge technology, aerospace, and new electronic devices, higher requirements are being placed on material performance. Among these, metal laminates and many difficult-to-deform lightweight alloys, with their unique physical properties, are widely used in power transmission, automobiles, high-speed trains, and electronic devices. However, the forming processes of metal combinations with significant differences in the plasticity of two metals, such as titanium / stainless steel, stainless steel / copper, and stainless steel / aluminum laminates, as well as new materials such as difficult-to-deform high-strength rare-earth magnesium alloys and high-entropy alloys, have become problems restricting the development of these products.

[0003] Electroplastic rolling and straightening, as a novel manufacturing process, fully utilizes the electrothermal effect generated when an electric current passes through a metallic material, enabling effective control over the material's microstructure and interfacial structure. As a highly efficient and precise forming method for controlling the microstructure of metals, its application in layered composite plates and the forming of difficult-to-deform metals is beneficial to promoting the development of new manufacturing technologies for controlling the internal microstructure of materials and improving the performance of layered composite plates.

[0004] However, existing energizing devices are all fixed-type, which cannot meet the requirements for flexible energizing of multi-specification sheet materials. Furthermore, most are sliding-type energizers, resulting in low energizing efficiency and inability to handle high current densities. In addition, existing energizing technologies only energize one side of the sheet material, failing to control the uniformity of current distribution across the entire cross-section, which significantly limits the application of electroplastic rolling and straightening technologies. Therefore, there is an urgent need to develop a device with arbitrarily adjustable energizing distance that can achieve uniform and stable energizing of multi-specification sheet materials. Summary of the Invention

[0005] The purpose of this invention is to provide a position-adjustable electrical pulse-assisted rolling and straightening energizing device and method to solve the above-mentioned problems and achieve the effect of improving the uniform and stable energizing of the plate blank.

[0006] To achieve the above objectives, the present invention provides the following solution: a position-adjustable electrical pulse-assisted rolling and straightening energizing device, characterized in that it includes a frame, a conveying assembly, a movable lifting energizing assembly, a pressure monitoring assembly, and an infrared temperature monitoring assembly. The conveying assembly is fixedly connected to the front and rear of the frame. The movable lifting energizing assembly is fixedly connected above the conveying assemblies at the front and rear of the frame. The upper conductive roller end of the energizing assembly is connected to a boss-type rotary energizing connector. Any conveying roller at the front and rear of the mill and straightener can be used as a lower conductive roller as needed, and its end is also connected to the boss-type rotary energizing connector. The upper and lower conductive rollers at the front and rear of the frame are all connected to a pulse power supply through rotary connectors to form a complete current loop. Pressure monitoring components and infrared temperature monitoring components are provided at the ends and right sides of the conductive rollers. This invention can achieve uniform energizing of multi-specification plates, and the effective energizing distance at the front and rear is arbitrarily adjustable.

[0007] Preferably, the support frame of the movable lifting and energizing assembly is fixedly connected to the left and right sides of the rolling mill and straightening machine. The support frame includes several hydraulic cylinders and transverse slide rails. The movable lifting and energizing assembly can be adjusted to a suitable height on the support frame by extending and retracting the hydraulic cylinders, thereby realizing the up and down movement of the mechanism.

[0008] Preferably, a sliding folding power arm is installed above the movable lifting power assembly, and a pulley is fixed to the bottom of the sliding folding power arm. The pulley is placed on a guide rail above the support frame. The sliding folding power arm includes a hydraulic cylinder, a folding device, a rotary power connector, and an upper conductive roller.

[0009] Preferably, the upper conductive roller end of the sliding folding energizing arm is a grooved connector that engages with a boss-type brush inside the boss-type rotating energizing connector to form a rotating energizing connector. The grooved connector and the boss-type brush are fully filled with lubricating conductive powder. The raised part of the boss-type brush is engraved with windmill-shaped raised patterns to ensure the uniform distribution of lubricating conductive powder during the rotating energizing process and enhance the stability of conductivity.

[0010] Preferably, the lubricating conductive powder is graphene or carbon powder.

[0011] Preferably, the upper conductive roller and the lower conductive roller are respectively placed on the upper and lower surfaces of the rolled metal sheet or composite sheet blank, and the sheet is energized in parallel through the upper conductive roller and the lower conductive roller, respectively. The upper conductive roller and the lower conductive roller at the rolling and straightening exit are connected to the power supply loop to achieve symmetrical and uniform energization of the entire sheet.

[0012] An adjustable electrical pulse assisted rolling and straightening energizing device includes the following steps:

[0013] Step 1: The sliding folding power arm is placed above the sheet metal blank by the movable lifting power assembly. The sliding folding power arm is placed near the rolling and straightening inlet and outlet of the metal sheet by the pulley moving on the guide rail. The upper and lower conductive rollers are made to fit tightly with the sheet metal blank by the telescopic hydraulic cylinder.

[0014] Step 2: Several pulse power supplies input current into the upper and lower conductive rollers through the movable lifting power supply component for joint power supply. The infrared temperature monitoring component and the pressure monitoring component monitor the temperature and pressure of the metal plate and feed back to the pulse power supply control system, so that the power supply process forms a closed loop control until the product data meets the finished product requirements.

[0015] The present invention has the following technical effects:

[0016] 1. By adjusting the vertical distance of the upper conductive roller through the movable lifting and energizing component, the energizing requirements of sheet blanks of any thickness can be met. Furthermore, according to the actual energizing distance required for different sheet materials, the energizing distance for rolling and straightening can be adjusted by sliding and folding the energizing arm back and forth and selecting the appropriate lower conductive roller, thereby achieving flexible energized rolling and straightening.

[0017] 2. The sliding folding energizing arm can extend and retract the upper conductive roller to the inlet and outlet sides of the rolling mill and straightener, so as to minimize the distance between the positive and negative electrodes, reduce the length of the non-energized part at the beginning and end of the strip threading, and improve the yield.

[0018] 3. The power supply device adopts a scheme of parallel power supply at the top and bottom. Compared with the traditional single-sided power supply on the upper surface, the uniformity of power supply along the thickness direction of the plate is further enhanced. In addition, this scheme has an infrared temperature detection component installed on the right side of the rolling mill and straightening machine, which can adjust the current of the upper and lower conductive rollers in a timely manner according to the actual temperature distribution of the plate, so as to ensure uniform and stable power supply in the transverse and longitudinal sections of the plate.

[0019] 4. Both the upper and lower power supply devices adopt a constant voltage conductive roller power supply method, which improves the traditional sliding power supply to a rolling power supply, resulting in a more stable power supply effect and less wear during the power supply process;

[0020] 5. A rotary joint device for meshing a grooved conductive roller end and a boss-type brush was invented, and the middle is fully filled with highly lubricating material, which increases the contact area of ​​the joint part, making the power supply more stable and able to meet the requirements of high current power supply.

[0021] 6. The rotary joint boss type brush has raised textures engraved on it, which can make the distribution of conductive lubricating material in the joint meshing area uniform during the rotation and energization process.

[0022] The innovation of this invention lies in its design, which significantly enhances the effective contact area between the conductive roller and the sheet material, while optimizing the uniformity of current within the sheet material. Furthermore, it allows for different operations for sheets of varying thicknesses and materials. By integrating multiple pulse power supplies and advanced monitoring components to construct a closed-loop control system, we have achieved a significant improvement in the accuracy of sheet material temperature control, thereby ensuring the stability of the processing and superior product quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 Schematic diagram of the overall structure of the invention

[0025] Figure 2 for Figure 1 The schematic diagram of the movable lifting and power-conducting component shown in the figure.

[0026] Figure 3 for Figure 1 The schematic diagram of the conductive roller structure shown is as follows.

[0027] Figure 4 To improve the current diagram of the front conductive roller

[0028] Figure 5 Current diagram of the improved conductive roller

[0029] Figure 6 for Figure 3 Schematic diagram of the grooved rotary power connector structure described in the figure

[0030] Figure 7 for Figure 3 Schematic diagram of the boss-type rotary power connector structure described in the figure

[0031] Figure 8 for Figure 3 Schematic diagram and cross-sectional view of conductive roller assembly Detailed Implementation Plan

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only a part of the embodiments of the present invention, and not all of them. 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.

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figure 1-6 This embodiment provides a position-adjustable electrical pulse-assisted rolling and straightening energizing device, characterized by comprising a frame 1, a conveying assembly 13, a movable lifting energizing assembly 3, a pressure monitoring assembly, and an infrared temperature monitoring assembly 8. The conveying assembly 13 is fixedly connected to the front and rear of the frame. The movable lifting energizing assembly 3 is fixedly connected above the conveying assembly 13 at the front and rear of the frame. The upper conductive roller 5 in the movable lifting energizing assembly is connected at its end to a boss-type rotary energizing connector 10. Any conveying roller in the conveying assembly, whether in front or behind the rolling mill or straightener, can be used as a lower conductive roller as needed, and its end is also connected to the boss-type rotary energizing connector 10. The upper and lower conductive rollers at the front and rear of the frame are all connected to a pulse power supply 6 through rotary connectors to form a complete current loop. The pressure monitoring assembly and the infrared temperature monitoring assembly 8 are provided at the ends and right sides of the conductive rollers. This invention can achieve uniform energizing of multi-specification plates, and the effective energizing distance between the front and rear is arbitrarily adjustable.

[0035] In a further optimized design, the support frame 2 of the movable lifting and energizing component 3 is fixedly connected to the left and right sides of the rolling mill and straightening machine. The support frame 2 includes several hydraulic cylinders 12 and a transverse slide rail. By extending and retracting the hydraulic cylinders 12, the movable lifting and energizing component 3 can be moved on the support frame 2 to a suitable height, thereby realizing the up and down movement of the mechanism.

[0036] In a further optimized design, a sliding folding power arm 4 is installed above the movable lifting power assembly 3. A pulley is fixed to the bottom of the sliding folding power arm 4, and the pulley is placed on the guide rail above the support frame 2. The sliding folding power arm 4 includes a hydraulic cylinder 12, a folding device 11, and an upper conductive roller 5.

[0037] In a further optimized design, the upper conductive roller 5 of the sliding folding power-conducting arm 4 is connected to a grooved rotary power-conducting connector 9 and a boss-type rotary power-conducting connector 10 to form a rotary power-conducting connector. The grooved rotary power-conducting connector 9 and the boss-type rotary power-conducting connector 10 are fully filled with lubricating conductive powder. The raised part of the boss-type rotary power-conducting connector 10 is engraved with a windmill-shaped raised pattern to ensure the uniform distribution of lubricating conductive powder during the rotary power-conducting process and enhance the stability of conductivity.

[0038] Further optimization of the solution involves using graphene or carbon powder as the lubricating and conductive powder.

[0039] The scheme is further optimized by placing the upper conductive roller 5 and the lower conductive roller on the upper and lower surfaces of the rolled metal sheet or composite sheet blank, respectively. The sheet is energized in parallel through the upper conductive roller 5 and the lower conductive roller, respectively. The upper conductive roller and the lower conductive roller at the rolling and straightening exit are connected to the power supply loop to achieve symmetrical and uniform energization of the entire sheet.

[0040] An adjustable-position electrical pulse assisted rolling and straightening energizing device and its usage method include the following steps:

[0041] Step 1: The sliding folding power arm 4 is placed above the sheet metal blank by the movable lifting power assembly 3. The sliding folding power arm 4 is placed near the rolling and straightening inlet and outlet of the metal sheet by the pulley moving on the guide rail. The upper conductive roller 5 and the lower conductive roller are tightly attached to the sheet metal blank by the telescopic hydraulic cylinder 12.

[0042] Step 2: Several pulse power supplies 6 input current to the upper conductive roller 5 and the lower conductive roller through the movable lifting power supply component 3 for joint power supply. The infrared temperature monitoring component and the pressure monitoring component 8 monitor the temperature and pressure of the metal plate and feed back to the pulse power supply control system, so that the power supply process forms a closed loop control until the product data meets the finished product requirements.

[0043] Compared to traditional conductive roller systems, the core advantage of this invention lies in its ability to significantly enhance the effective contact area between the conductive roller and the sheet metal, and between the conductive roller connector and the wire. This not only improves energizing efficiency but also greatly optimizes the uniformity of current within the sheet metal. More importantly, the device possesses high adaptability, allowing for flexible adjustments to metal sheets of varying thicknesses and materials, ensuring optimal processing results under diverse operating conditions and meeting the demands of ultra-high current energizing. Furthermore, when energizing metal strips, this device minimizes the length of the non-energized sections at the beginning and end of the energizing process, thereby increasing the yield rate.

[0044] In addition, the power supply device adopts a constant voltage conductive roller power supply method, which improves the traditional sliding power supply to a rolling power supply, resulting in a more stable power supply effect and less wear during the power supply process.

[0045] To achieve more precise processing control, this device integrates multiple pulse power supplies and advanced monitoring components, constructing a closed-loop control system. This system can monitor the temperature changes of the sheet material in real time and automatically adjust the power output according to preset process parameters, thereby significantly improving the accuracy of sheet material temperature control. This highly automated control method not only simplifies the operation process but also greatly improves the stability of the processing and the reliability of product quality.

[0046] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0047] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A position-adjustable electrical pulse-assisted rolling and straightening energizing device, characterized in that: It includes rack (1), conveying assembly (13), movable lifting electrification assembly (3), pressure monitoring assembly and infrared temperature monitoring assembly (8); conveying assembly (13) is fixedly connected to the front and rear of the rack, and movable lifting electrification assembly (3) is fixedly connected above the conveying assembly (13) in front of and behind the rack, the end of the upper conductive roller (5) in the electrification assembly is connected with the boss type rotary electrification connector (10), and the end of the lower conductive roller (5) is also connected with the boss type rotary electrification connector (10), the upper and lower conductive rollers in front of and behind the rolling mill and the straightening machine are connected with the boss type rotary electrification connector (10) according to the requirement, and the upper and lower conductive rollers in front of and behind the rack are connected through the rotary connector and the pulse power source (6) to form a complete current loop, and the end of the conductive roller and the right side are provided with the pressure monitoring assembly and the infrared temperature monitoring assembly (8); The movable lifting electrification assembly (3) is provided with a sliding folding electrification arm (4) above, the sliding folding electrification arm (4) is fixedly connected with a pulley at the bottom, the pulley is arranged on the guide rail above the support frame (2), and the sliding folding electrification arm (4) comprises a hydraulic cylinder (12), a folding device (11), rotary electrification connectors (9) and (10); The end of the upper conductive roller (5) in the sliding folding electrification arm (4) is a rotary electrification connector formed by the connection of the groove type rotary electrification connector (9) and the boss type rotary electrification connector (10), the groove type rotary electrification connector (9) and the boss type rotary electrification connector (10) are filled with lubricating conductive powder, and the convex part of the boss type rotary electrification connector (10) is engraved with a windmill type convex pattern, so that the uniform distribution of the lubricating conductive powder is ensured in the rotary electrification process, and the stability of the conductive performance is enhanced.

2. The electric pulse assisted rolling and straightening device according to claim 1, wherein: The support frame (2) in the movable lifting electrification assembly (3) is fixedly connected with the mill house on the left and right sides of the rolling mill and the straightening machine, the support frame (2) comprises a plurality of hydraulic cylinders (12) and transverse sliding rails, the movable lifting electrification assembly (3) can be placed at a suitable height on the support frame (2) by adjusting the telescopic hydraulic cylinder (12), so that the up-and-down movement of the mechanism is realized.

3. The electric pulse assisted rolling and straightening device of claim 1, wherein: The lubricating conductive powder is graphene or carbon powder.

4. The electric pulse assisted rolling and straightening device of claim 1, wherein: The upper conductive roller (5) and the lower conductive roller are respectively arranged on the upper and lower surfaces of the rolled metal plate or the composite plate blank, the plate is parallelly electrified through the upper conductive roller (5) and the lower conductive roller, the power loop is formed by connecting the upper conductive roller and the lower conductive roller at the rolling and straightening outlet, and the full plate is symmetrically and uniformly electrified.

5. A method of using a position adjustable electric pulse assisted rolling and straightening power supply device, based on any one of claims 1-4, characterized in that The method comprises the following steps: Step one: the sliding folding electrification arm (4) is placed above the plate blank through the movable lifting electrification assembly (3), the sliding folding electrification arm (4) is placed near the rolling and straightening inlet and outlet of the metal plate through the pulley on the guide rail, and the upper conductive roller (5) and the lower conductive roller are tightly combined with the plate blank through the telescopic hydraulic cylinder (12). Step two: several pulse power supply (6) via the movable lifting power component (3) to input the current to the upper and lower conductive roller (5) joint power, the infrared temperature monitoring component and the pressure monitoring component (8) to monitor the temperature and pressure of the metal plate, and feedback to the pulse power control system, so that the power process forms a closed loop control, until the product data reaches the finished product requirements.

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