A plate winding and edge covering pre-pressing device

Abstract

The application relates to a plate winding and edge covering pre-pressing equipment and relates to the technical field of plate winding processing. The equipment comprises a rack, a driving element arranged in one end of the rack, an upper roller drivenly connected with the driving element, a lower roller arranged below the upper roller in a lifting mode, first driving assemblies arranged at two ends of the rack, first side rollers connected with the two first driving assemblies, second side rollers connected with two second driving assemblies, auxiliary assemblies installed at the feeding end and the discharging end of the rack; the auxiliary assembly comprises a rotating shaft rotatably arranged on two first fixing frames, the rotating shaft is connected with a power source, gears are arranged on the two ends of the rotating shaft, the gears are in meshing transmission connection with racks, two second fixing frames are installed on the rack, the racks slide on the second fixing frames, rotating shafts are installed on the two racks, and rollers are arranged on the rotating shafts. The application has the effects of solving the problem that the traditional equipment only exerts pressure upward and downward, the edges are prone to being wrinkled, and the long plate material is prevented from being affected by the self-weight sagging and the pre-pressing precision is improved.

Description

Technical Field

[0001] This application relates to the technical field of sheet metal processing, and in particular to a sheet metal edge-wrapping pre-tightening device. Background Technology

[0002] In the field of sheet metal processing, sheet metal edge wrapping is a process that curls the edges of sheet metal into specific shapes (such as arcs or right angles), and it is widely used in the manufacture of pressure vessels, pipes, and automotive parts. To ensure the quality of edge wrapping, the sheet metal must be pre-compressed before curling to eliminate stress and ensure its positional stability during the curling process.

[0003] Existing pre-pressing equipment mostly uses upper and lower rollers to press the sheet material. It only applies pressure in the up and down direction and cannot provide targeted pre-pressing to the two sides of the sheet material, which makes the edges prone to wrinkles or deviations during edge wrapping. At the same time, there is a lack of auxiliary guiding mechanism when the sheet material is fed, and long sheets are prone to sag due to their own weight, affecting the pre-pressing accuracy. Utility Model Content

[0004] To address the issues that using upper and lower rollers to press the sheet metal, which only applies pressure in the up and down direction, cannot provide targeted pre-tightening to the edges of the sheet metal, and lacks an auxiliary guiding mechanism during sheet metal feeding, thus affecting pre-pressing accuracy, this application provides a pre-pressing device for edge wrapping of rolled sheet metal.

[0005] This application provides a pre-compression device for edge wrapping of rolled steel sheets, which adopts the following technical solution: A pre-pressing device for edge wrapping of rolled steel sheets includes a frame. A driving component is installed at one end of the frame, and a tilting component is installed at the other end. The driving component drives an upper roller. One end of the upper roller is rotatably disposed in the frame, and the other end is connected to a bearing seat of the tilting component. A lower roller is vertically movable directly below the upper roller. A first driving component and a second driving component are provided at both ends of the frame. The driving component is located between the first driving component and the second driving component. A first side roller is connected to each of the two first driving components, and a second side roller is connected to each of the two second driving components. An auxiliary component is installed at both the feed end and the discharge end of the frame. The auxiliary component includes two first fixed frames and a rotating shaft. The rotating shaft is rotatably mounted on the two first fixed frames. The rotating shaft extends out of one of the first fixed frames and is connected to a power source. Gears are sleeved on both ends of the rotating shaft. Racks are meshed and connected to both gears. The racks are located on the side of the gears closer to the upper roller. Two second fixed frames are mounted on the frame. The racks are slidably mounted on the second fixed frames. Rotating shafts are mounted on the two racks. Multiple rollers are sleeved on the rotating shafts.

[0006] By adopting the above technical solutions, the frame provides a stable installation and support foundation for the entire equipment, ensuring structural stability when all components work together. The drive unit provides power to the upper roller, enabling it to rotate stably to cooperate with the pre-pressing operation; the flipping component can drive the upper roller to flip, facilitating the loading and unloading of sheets and equipment maintenance. The upper roller, in conjunction with the liftable lower roller, achieves pre-pressing of the sheet in the vertical direction, eliminating longitudinal stress on the sheet; while the first drive component and the second drive component drive the first side roller and the second side roller respectively, applying pre-pressing force from both sides of the sheet, solving the problem of edge wrinkling caused by traditional equipment that only applies pressure vertically. At the same time, the auxiliary components at the feed and discharge ends of the frame are driven by a power source to rotate the shaft, and the gear and rack transmission drives the rollers on the rotating shaft. The rollers can support and guide the sheet during the feeding and discharge process, preventing long sheets from sagging due to their own weight and affecting the pre-pressing accuracy. Overall, it achieves multi-directional, efficient and precise pre-pressing of the sheet, ensuring the quality of subsequent sheet rolling and edge wrapping. Optionally, a groove is provided in one end of the rack, and a slider is provided on the second fixing frame, the slider sliding in the groove. By adopting the above technical solution, the cooperation between the slide and the slider provides a precise guide trajectory for the sliding of the rack, restricting the rack to move only in the set direction, avoiding the rack from deviating or skewing during transmission, ensuring the stability of the rack when driving the rotating shaft and roller, thereby ensuring the accuracy of the auxiliary components in supporting and guiding the plate, reducing the plate position deviation caused by rack wobbling, and improving the consistency of pre-clamping operation. Optionally, a connecting plate is connected between the two racks. By adopting the above technical solution, the connecting plate connects the two racks into a whole, enabling them to slide synchronously under the action of gear transmission. This avoids asynchronous rack movement caused by gear transmission errors on both sides, thus preventing the rotating shaft from tilting. The synchronously moving racks allow the multiple rollers on the rotating shaft to bear force evenly, providing more stable support and guidance for the sheet metal, further improving the working reliability of the auxiliary components, and ensuring the stability of the sheet metal's position during the pre-compression process. Optionally, the first drive assembly includes a first bracket, a first adapter frame, and a first push cylinder. The first bracket is fixedly installed at the bottom of the frame. The fixed end of the first push cylinder is rotatably disposed at the bottom of the frame. The output end of the first push cylinder, the first bracket, and the first side roller are all rotatably connected to the first adapter frame. The first side roller is located between the first push cylinder and the first bracket. By adopting the above technical solution, the first support provides a fixed rotation fulcrum for the first adapter frame, ensuring the structural stability of the first adapter frame during movement. The first push cylinder serves as a power source, driving the first adapter frame to rotate around the first support through extension and retraction, thereby driving the first side roller to move towards or away from the sheet material. This transmission structure allows for smoother application of pressure to the first side roller. The preload of the first side roller can be precisely controlled by adjusting the extension and retraction of the first push cylinder according to the sheet material thickness and preload requirements, adapting to the preload requirements of different sheet material specifications and improving the equipment's versatility and preload accuracy. Optionally, the side of the frame is provided with a first groove for the first side roller and the first transfer frame to rotate. By adopting the above technical solution, the first chute provides a limited space for the rotation of the first side roller and the first adapter frame, preventing them from exceeding the set range or shifting laterally during movement. Simultaneously, the first chute can assist in guiding the movement trajectory of the first side roller, ensuring that the first side roller always applies pre-tightening force to the plate material along the set direction, further improving the stability and accuracy of the first drive assembly and reducing pre-tightening errors caused by component vibration. Optionally, the second drive assembly includes a second bracket, a second adapter frame, and a second push cylinder. The second bracket is fixedly installed at the bottom of the frame. The fixed end of the second push cylinder is rotatably disposed at the bottom of the frame. The output end of the second push cylinder, the second bracket, and the second side roller are all rotatably connected to the second adapter frame. The second side roller is located between the second push cylinder and the second bracket. By adopting the above technical solution, the cooperation between the second bracket and the second adapter provides a stable rotational support foundation for the second side roller. The second push cylinder drives the second adapter to rotate around the second bracket through extension and retraction, thereby realizing the position adjustment of the second side roller. This structure is consistent with the first drive assembly, which can ensure the smooth application and precise control of the pre-tightening force on the other side of the plate by the second side roller. Moreover, the symmetrical arrangement of the drive assemblies on both sides can ensure that the force on both sides of the plate is uniform, avoiding the plate displacement caused by the imbalance of pre-tightening force on one side, and further improving the pre-tightening effect. Optionally, the side of the frame is provided with a second slide groove for the second side roller and the second transfer frame to rotate. By adopting the above technical solution, the second slide groove functions in harmony with the first slide groove, providing limitation and guidance for the movement of the second side roller and the second adapter frame, preventing deviation or overtravel during their movement. The symmetrically arranged first and second slide grooves ensure the consistency of the movement trajectory of the side rollers on both sides, making the preload force on both sides of the sheet more uniform, effectively preventing the sheet from bending or shifting position during the pre-pressing process, and ensuring the accuracy and stability of the pre-pressing operation. Optionally, the flipping assembly includes a telescopic cylinder, the fixed end of which is rotatably disposed at the bottom of the frame, the output end of which is rotatably connected to the bearing seat, the upper roller is configured to cooperate with the bearing seat, and the bearing seat is rotatably connected to the frame. When the telescopic cylinder extends or retracts, it drives the bearing seat to flip around the rotation point. By adopting the above technical solution, the telescopic cylinder serves as the power source for tilting. Its fixed end and output end are rotatably connected to the frame and bearing seat, respectively. Together with the rotatable connection between the bearing seat and the frame, a stable tilting linkage structure is formed. When it is necessary to load or unload sheet metal or maintain equipment, the telescopic cylinder extends or retracts, causing the bearing seat to tilt around the rotation point, thereby lifting the upper roller upwards or resetting it downwards. This operation is convenient and labor-saving. This structure can precisely control the tilting angle and position of the upper roller, preventing jamming or offset during tilting and ensuring the safety and convenience of equipment operation.

[0007] In summary, this application includes at least one of the following beneficial technical effects: 1. By cooperating with the upper and lower rollers and the first and second side rollers on both sides, multi-directional pre-compression of the board material is achieved from top to bottom and both sides, effectively solving the problem that the edges are prone to wrinkling and displacement caused by traditional equipment that only applies pressure from top to bottom. At the same time, the auxiliary components at the feeding end and the discharging end can support and guide the board material to prevent long boards from sagging, significantly improving the pre-compression accuracy and consistency, and laying the foundation for the quality of subsequent board rolling and edge wrapping. 2. The flipping component facilitates the flipping of the upper roller for loading and unloading of plates and maintenance equipment. The rack and slide guide, the synchronous transmission of the connecting plate and other structures further ensure the stability and synchronization of the movement of each component, reduce the probability of equipment failure, extend the service life of the equipment and improve the overall reliability of operation. Attached Figure Description

[0008] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the auxiliary component in an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure in an embodiment of this application.

[0009] Explanation of reference numerals in the attached figures: 1. Frame; 11. Upper roller; 12. Lower roller; 13. First side roller; 14. Second side roller; 15. First chute; 16. Second chute; 2. Drive component; 3. Tilting assembly; 31. Telescopic cylinder; 32. Bearing seat; 4. First drive assembly; 41. First bracket; 42. First adapter frame; 43. First push cylinder; 5. Second drive assembly; 51. Second bracket; 52. Second adapter frame; 53. Second push cylinder; 6. Auxiliary assembly; 61. First fixed frame; 62. Rotating shaft; 63. Power source; 64. Gear; 65. Rack; 66. Second fixed frame; 67. Rotating shaft; 671. Roller; 68. Connecting plate. Detailed Implementation

[0010] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0011] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0012] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0013] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0014] This application discloses a pre-tightening device for edge wrapping of rolled steel sheets, referring to... Figures 1-3The pre-pressing equipment for edge wrapping of rolled plates includes a frame 1. A drive component 2 is installed in one end of the frame 1, and a flipping component 3 is installed in the other end. The drive component 2 drives and connects to an upper roller 11. One end of the upper roller 11 is rotatably installed in the frame 1, and the other end is connected to the bearing seat 32 of the flipping component 3. A lower roller 12 is installed below the upper roller 11 and can be raised and lowered. A first drive component 4 and a second drive component 5 are provided at both ends of the frame 1. The drive component 2 is located between the first drive component 4 and the second drive component 5. A first side roller 13 is connected to the two first drive components 4, and a second side roller 14 is connected to the two second drive components 5. An auxiliary component 6 is installed at both the feeding end and the discharging end of the frame 1. The auxiliary component 6 includes two first fixed frames 61 and a rotating shaft 62. The rotating shaft 62 is rotatably mounted on the two first fixed frames 61. The rotating shaft 62 extends out of one of the first fixed frames 61 and is connected to a power source 63. Gears 64 are sleeved on both ends of the rotating shaft 62. Racks 65 are meshed and connected to both gears 64. The racks 65 are located on the side of the gears 64 near the upper roller 11. Two second fixed frames 66 are mounted on the frame 1. The racks 65 are slidably set on the second fixed frames 66. Rotating shafts 67 are mounted on the two racks 65. Multiple rollers 671 are sleeved on the rotating shafts 67.

[0015] In this equipment, the frame 1 provides a stable mounting platform for the drive unit 2, the tilting assembly 3, the upper roller 11, the lower roller 12, the first drive assembly 4, the second drive assembly 5, and the auxiliary assembly 6, integrating all functional components into a cohesive whole while withstanding the pressure and vibration generated during equipment operation. The drive unit 2 converts electrical energy into mechanical energy, driving the upper roller 11 to rotate stably at a preset speed, while simultaneously coordinating with the lifting and lowering action of the lower roller 12 to provide power for pre-compression of the sheet material in the vertical direction. By adjusting the speed of the drive unit 2, it can adapt to the pre-compression requirements of sheet materials of different thicknesses and materials, avoiding the problem of poor pre-compression effect caused by insufficient power or uneven speed in traditional equipment. The flipping assembly 3 can drive the upper roller 11 to flip around the rotation point of the bearing seat 32 and the frame 1, realizing the lifting and resetting of the upper roller 11, solving the problems of inconvenient loading and unloading of plates and difficult maintenance caused by the fixed upper roller 11 in traditional equipment. When it is necessary to place plates or maintain the equipment, the telescopic cylinder 31 extends and retracts to drive the upper roller 11 to flip and lift, increasing the operating space and making it easier for operators to quickly load and unload plates; during pre-pressing, the upper roller 11 is accurately reset to ensure the matching accuracy with the lower roller 12, improving the convenience and safety of equipment operation. Driven by the drive unit 2, the upper roller 11 rotates and simultaneously forms a pressure-opposing structure with the lower roller 12, which is adjustable and can be raised directly below, applying longitudinal pressure to the sheet metal. This achieves pre-compression of the sheet metal in the vertical direction, effectively eliminating the longitudinal stress generated during processing and avoiding the deformation of the sheet metal caused by applying pressure only on one side in traditional equipment. The rotation of the upper roller 11 also assists in moving the sheet metal along the feeding direction, providing a stable conveying foundation for subsequent pre-compression on both sides.

[0016] The lower roller 12 is height-adjustable, changing the distance between it and the upper roller 11 to accommodate plates of different thicknesses. Simultaneously, it works with the upper roller 11 to apply longitudinal preload to the plate, supporting it and keeping it horizontal. Lifting drive cylinders are connected to both ends of the lower roller 12, and these cylinders are fixed to the bottom of the frame 1 to allow the lower roller 12 to rise and fall.

[0017] The first drive assembly 4 drives the first side roller 13 to move closer to or further away from the sheet material, providing lateral power to the first side roller 13 and solving the problem of edge wrinkling caused by traditional equipment that only applies pressure vertically and cannot pre-tighten the edges. The second drive assembly 5 drives the second side roller 14 to move closer to or further away from the sheet material, providing lateral power to the second side roller 14, ensuring uniform force on both sides of the sheet material's edges and preventing the sheet material from bending or shifting due to insufficient pre-tightening force on one side. The symmetrical drive structure ensures that the pre-tightening force on both sides is consistent, further improving the pre-pressing accuracy of the sheet material's edges and ensuring the symmetry of subsequent sheet rolling and edge wrapping. The first side roller 13, driven by the first drive assembly 4, approaches or moves away from the board, applying a lateral preload to one edge of the board, and rotates synchronously with the board to assist in board conveying. The second side roller 14, driven by the second drive assembly 5, approaches or moves away from the board, applying a lateral preload to the other edge of the board, working in conjunction with the first side roller 13 to achieve synchronous preload on both edges of the board, and rotates synchronously with the board.

[0018] The auxiliary component 6 consists of a first fixed frame 61, a rotating shaft 62, a power source 63, a gear 64, a rack 65, a second fixed frame 66, a rotating shaft 67, and rollers 671. The power source 63 drives the rotating shaft 62 to rotate the gear 64. The gear 64 meshes with the rack 65 and slides on the second fixed frame 66, thereby driving the rollers 671 on the rotating shaft 67 to rise, fall, or move. This provides support and guidance for the feeding and discharging of the sheet metal, solving the problems of insufficient auxiliary guidance in traditional equipment and the tendency of long sheet metal to sag due to its own weight, resulting in pre-compression accuracy deviations. The feeding end rollers 671 guide the sheet metal accurately into the pre-compression area, while the discharging end rollers 671 support the sheet metal to keep it horizontal, preventing long sheet metal from sagging and deforming. At the same time, the rollers 671 rotate synchronously with the sheet metal, reducing friction damage, ensuring smooth sheet metal conveying, and further improving the accuracy and efficiency of the pre-compression operation. The first fixed frame 61 provides rotational support for the rotating shaft 62, restricts the radial displacement of the rotating shaft 62, and ensures that the rotating shaft 62 rotates stably under the drive of the power source 63. The rotating shaft 62 rotates under the drive of the power source 63, and at the same time drives the gears 64 sleeved at both ends to rotate synchronously, realizing the transmission of power from the power source 63 to the gears 64, avoiding the tilting of the roller 671 due to uneven power transmission, and improving the working stability of the auxiliary component 6. Power source 63 converts electrical energy into mechanical energy, driving the rotating shaft 62 to rotate, providing the original power for the gear 64 and rack 65 transmission of auxiliary component 6. By adjusting the rotation speed of power source 63, the rotation speed of rotating shaft 62 can be controlled, thereby adjusting the lifting or moving speed of roller 671 to adapt to the needs of different conveying speeds of sheet metal, ensuring that auxiliary component 6 and main pre-compression structure work together. Gear 64 meshes with rack 65 and rotates under the drive of rotating shaft 62, converting the rotational motion of rotating shaft 62 into linear motion of rack 65, realizing the transmission of power from rotating shaft 62 to rack 65, thereby driving roller 671 to move; gear 64 meshing transmission has the characteristics of high transmission efficiency and strong load-bearing capacity, ensuring the reliability of power transmission and avoiding the lag in the movement of roller 671 due to power loss. The rack 65 is slidably mounted on the second fixed frame 66, with one end connected to the rotating shaft 67. Driven by the gear 64, it slides along the second fixed frame 66, thereby causing the rotating shaft 67 and the roller 671 to rise or move, adjusting the contact state between the roller 671 and the plate. This ensures that the roller 671 can precisely conform to the surface of the plate for support and guidance according to the plate thickness and conveying requirements. At the same time, the sliding restriction of the rack 65 on the second fixed frame 66 ensures the stability of its movement trajectory and prevents the roller 671 from deviating. The second fixed frame 66 provides sliding support for the rack 65, restricting the rack 65 to slide only in a set direction, preventing lateral deviation or skew during movement, and improving the working accuracy of the auxiliary component 6. Multiple rollers 671 are mounted on a rotating shaft 67. Driven by a rack 65, they move synchronously up and down or move synchronously, transmitting the linear motion of the rack 65 to the rollers 671 while ensuring synchronized movement of all rollers 671. Driven by the rack 65, they synchronously conform to the sheet material, ensuring uniform support force on all parts of the sheet material and preventing localized deformation caused by inconsistent movement of individual rollers 671. Simultaneously, the rigid structure of the rotating shaft 67 ensures the stability of the rollers 671 during rotation, improving the auxiliary guiding effect. The rollers 671 contact the surface of the sheet material and rotate synchronously with its movement, providing support and guidance, reducing friction between the sheet material and the equipment, protecting the surface quality of the sheet material, and ensuring smooth conveying of the sheet material, thus guaranteeing the accuracy of subsequent pre-pressing operations. The pre-compression equipment for edge wrapping of sheet metal integrates various functional components through the frame 1. The drive component 2 drives the upper roller 11 to rotate, which, together with the liftable lower roller 12, achieves pre-compression of the sheet metal in the vertical direction. The first drive component 4 and the second drive component 5 drive the first side roller 13 and the second side roller 14 respectively to achieve lateral pre-compression of the two sides of the sheet metal. The flipping component 3 facilitates the handling of sheet metal and equipment maintenance. The auxiliary components 6 at the feeding end and the discharging end support and guide the sheet metal, ultimately achieving multi-directional, precise, and efficient pre-compression operation of the metal sheet metal, eliminating sheet metal stress, and ensuring the stability and flatness of the sheet metal in the subsequent edge wrapping process. A groove is provided inside one end of the rack 65, and a slider is provided on the second fixed frame 66. The slider slides in the groove. The groove is opened inside one end of the rack 65 to form a groove structure of a specific shape, which is used to accommodate the slider and limit the range of motion of the slider. The slider is only allowed to slide along the extension direction of the groove, ensuring the linearity and stability of the rack 65's movement and avoiding power transmission failure or component jamming caused by movement deviation.

[0019] The slider is embedded in the groove of the rack 65, forming a sliding fit with the groove. When the rack 65 moves, it slides along the inner wall of the groove. At the same time, the slider restricts the degree of freedom of the rack 65 through its contact with the groove, reducing the wobbling of the rack 65 during movement. The contact area between the slider and the groove is uniform, which can reduce the frictional resistance when the two move relative to each other, avoid jamming, and ensure the smoothness and flexibility of the rack 65 movement.

[0020] A connecting plate 68 connects the two racks 65, forming an integrated linkage structure. This structure synchronously transmits the motion of one rack 65 to the other, while limiting the relative displacement between them. This ensures their motion trajectories are consistent, eliminating asynchronous motion caused by installation errors, uneven driving forces, or other factors, and maintaining the same speed and displacement. Furthermore, the rigid structure of the connecting plate 68 enhances the overall stability of the two racks 65, preventing lateral bending or deviation during movement and improving transmission reliability. The first drive assembly 4 includes a first bracket 41, a first adapter frame 42, and a first push cylinder 43. The first bracket 41 is fixedly installed at the bottom of the frame 1. The fixed end of the first push cylinder 43 is rotatably disposed at the bottom of the frame 1. The output end of the first push cylinder 43, the first bracket 41, and the first side roller 13 are all rotatably connected to the first adapter frame 42. The first side roller 13 is located between the first push cylinder 43 and the first bracket 41. The first bracket 41 provides a stable rotation fulcrum for the adapter frame, restricts the radial displacement of the adapter frame, ensures that the adapter frame can only move along a preset rotation trajectory, and ensures that the adapter frame will not deviate or sway when rotated under force, avoiding component movement deviation caused by unstable support and improving the overall structural stability. The first adapter 42 forms a rotatable connection with the output end of the push cylinder, the bracket, and the side roller, respectively, converting the extension and retraction power of the push cylinder into the rotational displacement of the side roller, while coordinating the movement relationship of each component to ensure a smooth power transmission path, so that the side roller can accurately approach or move away from the target object; its rotatable connection characteristics ensure that each component does not interfere with each other when moving, improving the flexibility and coordination of the component's movement. The first push cylinder 43 is the power source 63 of the component. It realizes the extension and retraction of the output end through air pressure drive, providing the original power for the movement of the adapter and the side roller. By adjusting the air pressure, the extension and retraction speed and thrust of the output end can be precisely controlled, thereby controlling the movement speed and force of the side roller. The rotating connection setting allows the cylinder to adapt to the rotation angle change of the adapter, avoids stress concentration during power transmission, and extends the service life of the component.

[0021] The frame 1 has a first chute 15 on its side for the first side roller 13 and the first adapter frame 42 to rotate. The first chute 15 forms a groove structure of a specific shape, providing a movement channel for the first side roller 13 and the first adapter frame 42, limiting their movement trajectory, and allowing them to rotate or move only along the extension direction of the groove, preventing the movement from exceeding the preset range, avoiding lateral deviation or skew during the movement, and ensuring the accuracy of the movement direction.

[0022] The second drive assembly 5 includes a second bracket 51, a second adapter frame 52, and a second push cylinder 53. The second bracket 51 is fixedly installed at the bottom of the frame 1. The fixed end of the second push cylinder 53 is rotatably disposed at the bottom of the frame 1. The output end of the second push cylinder 53, the second bracket 51, and the second side roller 14 are all rotatably connected to the second adapter frame 52. The second side roller 14 is located between the second push cylinder 53 and the second bracket 51. The second bracket 51 provides a stable rotation fulcrum for the adapter frame, restricts the radial movement of the adapter frame, ensures that the adapter frame can only rotate around the fulcrum along a preset trajectory, and provides a structural installation reference for the entire assembly.

[0023] The second adapter 52 forms a rotatable connection with the output end of the push cylinder, the bracket, and the side roller, respectively, converting the linear extension and retraction power of the push cylinder into the directional rotational displacement of the side roller. At the same time, it coordinates the movement relationship of each component, ensuring that the power transmission path is unimpeded and uninterrupted, so that the side roller can stably approach or move away from the target object. The rotatable connection setting allows each component to flexibly adjust its angle during movement, avoiding stress concentration during power transmission and improving the flexibility and coordination of component movement.

[0024] The second push cylinder 53 achieves the extension and retraction of the output end through air pressure drive, providing continuous and controllable power output for the movement of the adapter frame and side rollers. The thrust and extension speed of the output end can be precisely controlled by adjusting the air pressure, thereby realizing flexible adjustment of the force and speed of the side rollers to adapt to different working conditions. The rotating connection method allows it to adjust the angle synchronously with the rotation of the adapter frame, avoiding power transmission loss caused by fixed angle, extending the service life of the components, and ensuring the stability of power output.

[0025] The side of the frame 1 is provided with a second slide groove 16 for the second side roller 14 and the second adapter frame 52 to rotate. The second slide groove 16 forms a groove structure with a specific profile, providing a movement channel for the second side roller 14 and the second adapter frame 52, limiting the movement direction and range of the two, and allowing them to rotate or move only along the extension trajectory of the groove, preventing irregular deviation and ensuring the accuracy of the movement direction; at the same time, the groove can block external impurities from entering the movement area, reducing component wear or movement failure caused by foreign objects jamming, and extending the service life of the components.

[0026] The flipping assembly 3 includes a telescopic cylinder 31. The fixed end of the telescopic cylinder 31 is rotatably mounted at the bottom of the frame 1. The output end of the telescopic cylinder 31 is rotatably connected to the bearing seat 32. The upper roller 11 is fitted with the bearing seat 32, and the bearing seat 32 is rotatably connected to the frame 1. When the telescopic cylinder 31 extends or retracts, it drives the bearing seat 32 to flip around the rotation point. The telescopic cylinder 31 achieves the extension and retraction of the output end through pneumatic drive, providing controllable power output for the flipping of the bearing seat 32. At the same time, the extension and retraction speed and thrust can be adjusted according to needs, and the extension and retraction amount of the output end can be precisely controlled, thereby controlling the flipping angle of the bearing seat 32 to meet the operational needs of different scenarios. The rotatable connection allows it to adjust its own angle synchronously with the flipping of the bearing seat 32, avoiding stress concentration during power transmission, reducing component wear, ensuring the stability and continuity of power output, and extending the service life of the assembly.

[0027] The bearing housing 32 receives the power transmitted by the telescopic cylinder 31, which drives the upper roller 11 to rotate around its own rotation point with the frame 1. It is the core component connecting the telescopic cylinder 31 and the upper roller 11, converting the linear telescopic power of the telescopic cylinder 31 into its own rotational motion, thereby realizing the rotation of the upper roller 11 and ensuring a smooth power transmission path. The cooperation structure with the upper roller 11 can ensure the stability of the upper roller 11 during the rotation process and prevent the upper roller 11 from shifting or falling off.

[0028] The component is powered by a telescopic cylinder 31, supported and limited by a frame 1, and driven by a bearing seat 32. The three work together to form a complete flipping structure, enabling the upper roller 11 to flip controllably around the rotation point. This meets the equipment's need for position adjustment under different working conditions and provides convenience for subsequent operations.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pre-tightening device for edge wrapping of rolled steel sheets, characterized in that: The machine includes a frame (1), a drive unit (2) is provided at one end of the frame (1), and a flipping assembly (3) is installed at the other end. The drive unit (2) drives and connects to an upper roller (11). One end of the upper roller (11) is rotatably disposed in the frame (1), and the other end is connected to the bearing seat (32) of the flipping assembly (3). A lower roller (12) is provided below the upper roller (11) and can be raised and lowered. A first drive assembly (4) and a second drive assembly (5) are provided at both ends of the frame (1). The drive unit (2) is located between the first drive assembly (4) and the second drive assembly (5). A first side roller (13) is connected to the two first drive assemblies (4), and a second side roller (14) is connected to the two second drive assemblies (5). An auxiliary assembly (6) is installed at both the feeding end and the discharging end of the frame (1). The auxiliary component (6) includes two first fixed frames (61) and a rotating shaft (62). The rotating shaft (62) is rotatably mounted on the two first fixed frames (61). The rotating shaft (62) extends out of one of the first fixed frames (61) and is connected to a power source (63). Gears (64) are sleeved on both ends of the rotating shaft (62). Racks (65) are meshed and connected to both gears (64). The racks (65) are located on the side of the gears (64) closer to the upper roller (11). Two second fixed frames (66) are mounted on the frame (1). The racks (65) are slidably mounted on the second fixed frames (66). A rotating shaft (67) is mounted on the two racks (65). Multiple rollers (671) are sleeved on the rotating shaft (67).

2. The pre-pressing equipment for edge wrapping of rolled plates according to claim 1, characterized in that: A groove is provided at one end of the rack (65), and a slider is provided on the second fixing frame (66), the slider sliding in the groove.

3. The pre-pressing equipment for edge wrapping of rolled plates according to claim 1, characterized in that: A connecting plate (68) is connected between the two racks (65).

4. The pre-pressing equipment for edge wrapping of rolled plates according to claim 1, characterized in that: The first drive assembly (4) includes a first bracket (41), a first adapter frame (42), and a first push cylinder (43). The first bracket (41) is fixedly installed at the bottom of the frame (1). The fixed end of the first push cylinder (43) is rotatably disposed at the bottom of the frame (1). The output end of the first push cylinder (43), the first bracket (41), and the first side roller (13) are all rotatably connected to the first adapter frame (42). The first side roller (13) is located between the first push cylinder (43) and the first bracket (41).

5. The pre-pressing equipment for edge wrapping of rolled plates according to claim 4, characterized in that: The frame (1) has a first groove (15) on its side for the first side roller (13) and the first adapter frame (42) to rotate.

6. The pre-pressing equipment for edge wrapping of rolled plates according to claim 1, characterized in that: The second drive assembly (5) includes a second bracket (51), a second adapter frame (52), and a second push cylinder (53). The second bracket (51) is fixedly installed at the bottom of the frame (1). The fixed end of the second push cylinder (53) is rotatably disposed at the bottom of the frame (1). The output end of the second push cylinder (53), the second bracket (51), and the second side roller (14) are all rotatably connected to the second adapter frame (52). The second side roller (14) is located between the second push cylinder (53) and the second bracket (51).

7. The pre-pressing equipment for edge wrapping of rolled plates according to claim 6, characterized in that: The frame (1) is provided with a second slide groove (16) on its side for the second side roller (14) and the second adapter (52) to rotate.

8. The pre-pressing equipment for edge wrapping of rolled plates according to claim 1, characterized in that: The flipping assembly (3) includes a telescopic cylinder (31). The fixed end of the telescopic cylinder (31) is rotatably disposed at the bottom of the frame (1). The output end of the telescopic cylinder (31) is rotatably connected to the bearing seat (32). The upper roller (11) is configured to cooperate with the bearing seat (32). The bearing seat (32) is rotatably connected to the frame (1). When the telescopic cylinder (31) extends or retracts, the telescopic cylinder (31) drives the bearing seat (32) to flip around the rotation point.

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