Position-adjustable electric pulse auxiliary rolling and straightening electrifying device and method

Abstract

The invention relates to the technical field of plastic forming equipment, in particular to a position-adjustable electric pulse auxiliary rolling and straightening electrifying device and method.The device comprises a rack, conveying assemblies are fixedly connected to the front portion and the rear portion of the rack, and movable lifting electrifying assemblies are fixedly connected to the positions, above the conveying assemblies, of the front portion and the rear portion of the rack; the end of an upper conductive roller in the electrifying assembly is connected with a groove type rotating electrifying connector, any conveying roller in front of and behind a rolling mill and a straightening machine in the conveying assembly can serve as a lower conductive roller according to requirements, the end of the lower conductive roller is also connected with a boss type rotating electrifying connector, and front, rear, upper and lower conductive rollers of a rack are connected with a pulse power source through rotating connectors to form a complete current loop. And the broken part and the right side of the conductive roller are provided with a pressure monitoring assembly and an infrared temperature measurement monitoring assembly. According to the invention, plates of multiple specifications can be uniformly electrified, and the front and back effective electrifying distance can be randomly adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of plastic forming equipment, and in particular to a position-adjustable electric pulse assisted rolling and straightening energization device and method. Background Art

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

[0003] As a new manufacturing process, electroplastic rolling and straightening fully utilize the electrothermal effect generated when electric current passes through metal materials, and can effectively control the microstructure and interface structure of the material. As an efficient and sophisticated forming method for controlling metal microstructure, the application of electroplastic rolling and straightening technology in the field of layered composite plates and difficult-to-deform metal forming is conducive to promoting the development of new manufacturing technologies that control the internal structure of materials and improve the performance of layered composite plates.

[0004] However, the existing power-on devices are all fixed-type power-on devices, which cannot meet the needs of flexible power-on of plates with multiple specifications, and most of them are sliding-type power-on devices, which have low power-on efficiency and cannot be powered at high current density. In addition, the existing power-on technologies are all power-on devices on one side of the plate surface, which cannot control the uniformity of the current distribution of the entire plate cross section, resulting in great restrictions on the application of electroplastic rolling and straightening technology. For this reason, it is urgent to develop a device that can adjust the power-on distance arbitrarily and can achieve uniform and stable power-on of plates with multiple specifications. Summary of the invention

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

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following scheme: a position-adjustable electric pulse assisted rolling and straightening energizing device, characterized in that it includes a frame, a transmission component, a movable lifting energizing component, a pressure monitoring component and an infrared temperature monitoring component. The frame is fixedly connected with transmission components in front and behind, and a movable lifting energizing component is fixedly connected above the transmission components in front and behind the frame. The end of the upper conductive roller in the energizing component is connected to a boss-type rotating energizing connector. Any transmission roller in front and behind the rolling mill and the straightening machine of the transmission component can be used as a lower conductive roller according to demand, and its end is also connected to a groove-type rotating energizing connector. The upper and lower conductive rollers in front and behind the frame are connected to a pulse power supply through a rotating joint to form a complete current loop. The end and right side of the conductive roller are provided with a pressure monitoring component and an infrared temperature monitoring component. The present invention can realize uniform energization of plates of various specifications, and the effective energization distance before and after can be adjusted arbitrarily.

[0007] Preferably, the support frame in the movable lifting and energizing component is fixedly connected to the archways on the left and right sides of the rolling mill and the straightening machine. The support frame includes a plurality of hydraulic cylinders and transverse slide rails. The appropriate height of the support device can be adjusted by telescopic hydraulic cylinders, thereby realizing the up and down movement of the mechanism.

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

[0009] Preferably, the end of the upper conductive roller in the sliding folding power-carrying arm is a multi-turn grooved joint, and a multi-turn boss type brush connected internally to the boss type rotating power-carrying joint engages to form a rotating power-carrying connecting piece. The multi-turn grooved joint and the multi-turn boss type brush are fully filled with lubricating conductive powder, and the raised part of the multi-turn boss type brush is engraved with windmill-type raised patterns, which ensures the uniform distribution of the lubricating conductive powder during the rotating power-carrying process and enhances the stability of the conductive performance.

[0010] Preferably, the lubricating conductive powder may be a dielectric material with high conductivity and low friction coefficient, such as graphene or carbon powder.

[0011] Preferably, the pressure monitoring component is fixed to the end of the upper conductive roller, and the infrared monitoring component is located on the right side of the rolling mill and the straightening machine. The temperature on the metal plate can be monitored in real time through the infrared monitoring component, and combined with the pressure monitoring component, the data can be fed back to the pulse power supply control panel in real time to adjust the power-on effect of the metal plate to the optimal state.

[0012] Preferably, the upper conductive roller and the lower conductive roller are respectively placed on the upper and lower surfaces of the rolled metal plate or composite plate blank, and the plate is energized in parallel through the upper conductive roller and the lower conductive roller respectively, and the upper conductive roller and the lower conductive roller at the rolling and straightening outlet are connected to a power supply-shaped circuit to achieve symmetrical and uniform electrification of the entire plate.

[0013] A position-adjustable electric pulse assisted rolling and straightening energizing device comprises the following steps: Step 1: Place the sliding folding energizing arm above the plate blank through the lifting support frame, move the sliding folding energizing arm on the guide rail to place the metal plate near the rolling and straightening entrance and exit, and make the upper conductive roller and the lower conductive roller fit closely with the plate blank through the telescopic hydraulic cylinder; Step 2: A plurality of pulse power supplies input current into the upper conductive roller and the lower conductive roller via the power-on component for joint power-on. 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-on process forms a closed-loop control until the product data meets the finished product requirements.

[0014] The present invention has the following technical effects: 1. The upper and lower distances of the upper conductive rollers can be adjusted by the movable lifting and energizing assembly, which can meet the energizing requirements of sheet blanks of any thickness. According to the actual energizing distance required by different sheets, the energizing arm can be folded forward and backward and the appropriate lower conductive roller can be selected to adjust the rolling and straightening energizing distances, thus realizing flexible energizing rolling and straightening. 2. The sliding folding power-carrying arm can extend and retract the upper conductive roller to the entrance and exit sides of the rolling mill and the straightening machine to minimize the distance between the positive and negative electrodes, reduce the length of the non-powered part at the beginning and end of the belt threading power-carrying, and improve the yield rate; 3. The power supply device adopts the scheme of upper and lower parallel power supply. Compared with the traditional single-side power supply on the upper surface, the uniformity of power supply on the plate along the thickness direction is further enhanced. In addition, this scheme installs an infrared temperature detection component on the right side of the rolling mill and the straightening machine, which can adjust the current of the upper and lower conductive rollers in time according to the actual temperature distribution of the plate to ensure uniform and stable power supply on the horizontal and vertical sections of the plate; 4. Both the upper and lower energizing devices adopt constant voltage conductive roller energizing mode, which improves the traditional sliding energizing mode to rolling energizing mode, making the energizing effect more stable and reducing wear during the energizing process; 5. A rotary joint device was invented in which the end of the grooved conductive roller and the boss-type brush are meshed, and the middle is fully filled with highly lubricating materials, which increases the contact area of ​​the joint part, makes the power supply more stable, and can meet the needs of large current power supply; 6. The boss-type brush of the rotary joint is engraved with raised patterns, which can make the distribution of conductive lubricating material in the joint meshing area uniform during the rotating power-on process.

[0015] The innovation of this invention lies in the design that can significantly enhance the effective contact area between the conductive roller and the plate, optimize the uniformity of the current inside the plate, and perform different operations for plates of different thicknesses and materials. By integrating multiple sets of pulse power supplies and advanced monitoring components to build a closed-loop control system, we have achieved a significant improvement in the temperature control accuracy of the plate, thereby ensuring the stability of the processing process and the superiority of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the invention; Figure 2 for Figure 1 A schematic diagram of the structure of the power-carrying components shown in FIG. Figure 3 for Figure 1 Schematic diagram of the conductive roller structure shown in; Figure 4 The current diagram of the conductive roller before improvement; Figure 5 This is the current diagram of the improved conductive roller; Figure 6 for Figure 3 A schematic diagram of the structure of the groove type rotating electrical connector; Figure 7 for Figure 3 A schematic diagram of the structure of the boss type rotary power supply connector; Figure 8 for Figure 3 Conductive roller assembly schematic and cross-sectional view. Specific implementation plan

[0018] The following will be combined with the drawings in the example diagram of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described examples are only part of the examples of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figure 1-6 This embodiment provides a position-adjustable electric pulse assisted rolling and straightening energizing device, which is characterized by comprising a frame (1), a transmission component (13), a movable lifting energizing component (3), a pressure monitoring component (8) and an infrared temperature monitoring component (8). The frame is fixedly connected with a transmission component (13) at the front and rear, and a movable lifting energizing component (3) is fixedly connected above the transmission component (13) at the front and rear of the frame. The end of the upper conductive roller (5) in the energizing component is connected to a boss-type rotating energizing connector (10). Any transmission roller at the front and rear of the rolling mill and the straightening machine in the transmission component can be used as a lower conductive roller (13) according to demand, and its end is also connected to a groove-type rotating energizing connector (9). The upper and lower conductive rollers at the front and rear of the frame are connected to a pulse power supply (6) through a rotating connector to form a complete current loop. The end and right side of the conductive roller are provided with a pressure monitoring component (8) and an infrared temperature monitoring component (8). The present invention can realize uniform energization of plates of various specifications, and the effective energization distance at the front and rear can be arbitrarily adjusted.

[0021] According to a further optimized solution, the support frame (2) in the movable lifting and electrifying component (3) is fixedly connected to the archways on the left and right sides of the rolling mill and the straightening machine. The support frame (2) includes a plurality of hydraulic cylinders (12) and transverse slide rails. The support frame (2) can be adjusted to a suitable height by telescoping the hydraulic cylinders (12), thereby realizing the up and down movement of the mechanism.

[0022] According to a further optimized solution, a sliding folding power-carrying arm (4) is installed above the movable lifting power-carrying component (3), a pulley is fixedly connected to the bottom of the sliding folding power-carrying arm (4), and the pulley is placed on a guide rail above the support frame (2). The sliding folding power-carrying arm (4) includes a hydraulic cylinder (12), a folding device (11) and an upper conductive roller (5).

[0023] According to a further optimized solution, the end of the upper conductive roller (5) in the sliding folding power-carrying arm (4) is connected to a multi-circle groove type rotating power-carrying connector (9) and a boss type rotating power-carrying connector (10) to form a rotating power-carrying connector, and the space between the multi-circle groove type rotating power-carrying connector (9) and the multi-circle boss type rotating power-carrying connector (10) is fully filled with lubricating conductive powder, and the raised portion of the multi-circle boss type rotating power-carrying connector (10) is engraved with a windmill-type raised pattern, so as to ensure the uniform distribution of the lubricating conductive powder during the rotating power-carrying process and enhance the stability of the conductive performance.

[0024] To further optimize the solution, the lubricating conductive powder can be a dielectric material with high conductivity and low friction coefficient, such as graphene or carbon powder.

[0025] According to a further optimized solution, the pressure monitoring component (8) is fixedly connected to the end of the upper conductive roller (5), and the infrared monitoring component (8) is located on the right side of the rolling mill and the straightening machine. The infrared monitoring component (8) can monitor the temperature of the metal plate in real time, and in combination with the pressure monitoring component (8), the data is fed back to the pulse power supply control panel in real time to adjust the power-on effect of the metal plate to an optimal state.

[0026] According to a further optimized solution, an upper conductive roller (5) and a lower conductive roller (13) are respectively placed on the upper and lower surfaces of the rolled metal plate or composite plate blank, and the plate is energized in parallel through the upper conductive roller (5) and the lower conductive roller (13), and a power supply-shaped circuit is connected to the upper conductive roller and the lower conductive roller at the rolling and straightening exit, so as to achieve symmetrical and uniform electrification of the entire plate.

[0027] A position-adjustable electric pulse assisted rolling and straightening energizing device and a method of using the device include the following steps: Step 1: placing the sliding folding energizing arm (4) above the plate blank by means of a lifting support frame (2), placing the sliding folding energizing arm (4) near the rolling and straightening entrance and exit of the metal plate by means of a pulley moving on a guide rail, and making the upper conductive roller (5) and the lower conductive roller (13) fit closely to the plate blank by means of a telescopic hydraulic cylinder (12); Step 2: A plurality of pulse power supplies (6) input current into the upper conductive roller (5) and the lower conductive roller (13) via the power supply component (3) for joint power supply. The infrared temperature monitoring component (8) 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.

[0028] Compared with the traditional conductive roller system, the core advantage of the present invention is that it can significantly enhance the effective contact area between the conductive roller and the plate and between the conductive roller joint and the wire, which not only improves the power-on efficiency, but also greatly optimizes the uniformity of the current inside the plate. More importantly, the device is highly adaptable and can be flexibly adjusted for metal plates of different thicknesses and materials to ensure the best processing effect under various working conditions and meet the requirements of ultra-large current power-on. At the same time, when the device is conducting power-on treatment on metal plates and strips, the length of the non-powered part at the beginning and end of the belt threading power-on can be reduced as much as possible, thereby improving the yield rate.

[0029] In addition, the energizing device adopts a constant voltage conductive roller energizing method, which improves the traditional sliding energizing method to a rolling energizing method. The energizing effect is more stable and there is less wear during the energizing process.

[0030] In order to achieve more precise processing control, the device also integrates multiple sets of pulse power supplies and advanced monitoring components to build a closed-loop control system. This system can monitor the temperature changes of the plate in real time and automatically adjust the power output according to the preset process parameters, thereby significantly improving the temperature control accuracy of the plate. This highly automated control method not only simplifies the operation process, but also greatly improves the stability of the processing process and the reliability of product quality.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A position-adjustable electric pulse assisted rolling and straightening energizing device, characterized in that: The invention comprises a frame (1), a transmission component (13), a movable lifting power supply component (3), a pressure monitoring component (8) and an infrared temperature monitoring component (8). The frame is fixedly connected with the transmission component (13) at the front and rear, and the movable lifting power supply component (3) is fixedly connected above the transmission component (13) at the front and rear of the frame. The end of the upper conductive roller (5) in the power supply component is connected to a boss-type rotating power supply connector (10). Any transmission roller at the front and rear of the rolling mill and the straightening machine in the transmission component can be used as a lower conductive roller (13) according to demand, and its end is also connected to a groove-type rotating power supply connector (9). The upper and lower conductive rollers at the front and rear of the frame are connected to a pulse power supply (6) through a rotating connector to form a complete current loop. The end and right side of the conductive roller are provided with a pressure monitoring component (8) and an infrared temperature monitoring component (8). The invention can realize uniform power supply of plates of various specifications, and the effective power supply distance at the front and rear can be arbitrarily adjusted.

2. According to claim 1, a position-adjustable electric pulse assisted rolling and straightening energization device is characterized in that: The support frame (2) in the movable lifting and electrifying component (3) is fixedly connected to the archways 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 slide rails. The support frame (2) can be adjusted to a suitable height by telescoping the hydraulic cylinders (12), thereby realizing the up and down movement of the mechanism.

3. According to claim 1, a position-adjustable electric pulse assisted rolling and straightening energizing device is characterized in that: A sliding folding energizing arm (4) is installed above the movable lifting energizing component (3); a pulley is fixedly connected to the bottom of the sliding folding energizing arm (4); the pulley is placed on a guide rail above the support frame (2); the sliding folding energizing arm (4) comprises a hydraulic cylinder (12), a folding device (11), and rotating energizing joints (9) and (10).

4. According to claim 2, a position-adjustable electric pulse assisted rolling and straightening energization device is characterized in that: The end of the upper conductive roller (5) in the sliding folding energizing arm (4) is a rotating energizing connector formed by connecting a multi-circle groove type rotating energizing connector (9) and a boss type rotating energizing connector (10). The space between the multi-circle groove type rotating energizing connector (9) and the multi-circle boss type rotating energizing connector (10) is fully filled with lubricating conductive powder. The convex portion of the multi-circle boss type rotating energizing connector (10) is engraved with a windmill-type convex pattern, so that the lubricating conductive powder is evenly distributed during the rotating energizing process, thereby enhancing the stability of the conductive performance.

5. According to claim 2, a position-adjustable electric pulse assisted rolling and straightening energization device is characterized in that: The lubricating conductive powder may be a dielectric material with high conductivity and low friction coefficient, such as graphene or carbon powder.

6. The position-adjustable electric pulse assisted rolling and straightening energizing device according to claim 1, characterized in that: The pressure monitoring component (8) is fixedly connected to the end of the upper conductive roller (5), and the infrared monitoring component (8) is located on the right side of the rolling mill and the straightening machine. The temperature of the metal plate can be monitored in real time through the infrared monitoring component (8), and combined with the pressure monitoring component (8), the data is fed back to the pulse power supply control panel in real time to adjust the power-on effect of the metal plate to an optimal state.

7. The position-adjustable electric pulse assisted rolling and straightening energizing device according to claim 1, characterized in that: The upper conductive roller (5) and the lower conductive roller (13) are respectively placed on the upper and lower surfaces of the metal plate or composite plate blank to be rolled, and the plate is energized in parallel through the upper conductive roller (5) and the lower conductive roller (13), and the upper conductive roller and the lower conductive roller at the rolling and straightening exit are connected to a power supply-shaped circuit to achieve symmetrical and uniform electrification of the entire plate.

8. A method for using a position-adjustable electric pulse assisted rolling and straightening energization device, based on the position-adjustable electric pulse assisted rolling and straightening energization device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: placing the sliding folding energizing arm (4) above the plate blank by means of the lifting support frame (2), placing the sliding folding energizing arm (4) near the rolling and straightening entrance and exit of the metal plate by means of the pulley moving on the guide rail, and making the upper conductive roller (5) and the lower conductive roller (13) fit tightly with the plate blank by means of the telescopic hydraulic cylinder (12); Step 2: A plurality of pulse power supplies (6) input current into the upper conductive roller (5) and the lower conductive roller (13) via the power supply component (3) for joint power supply. The infrared temperature monitoring component (8) 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.

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