Plate straightening machine with staggered roller system structure

Abstract

The invention discloses a plate straightening machine with a staggered roller system structure, which is applied to the technical field of plate straightening machines, and is characterized in that an upper roller group and a lower roller group are designed to be arranged in a staggered manner in the vertical direction to form the staggered roller system structure, so that various complex deformation conditions of plates can be accurately straightened; the problems that a traditional parallel roller system structure is not locally straightened in place, straightening force distribution is not flexible and the like are effectively solved, the flatness and quality of straightened plates are greatly improved, the straightener can adapt to the plates with different thicknesses, widths and material characteristics due to the design of the adjustable roller diameter and the arrangement of the side pressing piece and the pre-straightening structure, and the straightening efficiency is improved. And frequent replacement of equipment parts or complex equipment adjustment is not needed, so that the production time and cost are reduced, and the universality and adaptability of the equipment are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plate straightening machines, and in particular relates to a plate straightening machine with a staggered roller system structure. Background Art

[0002] During the production and processing of plates, due to the influence of rolling, transportation, storage and other links, the plates often have deformations such as bending and warping to varying degrees. In order to meet the requirements of subsequent processing and use, the plates need to be straightened. Although the existing plate straightening machines can complete the straightening tasks to a certain extent, they still have some shortcomings.

[0003] Most traditional plate straightening machines use a parallel roller system structure, that is, the upper and lower rows of rollers are arranged parallel to each other. This structure has certain limitations in the straightening process. On the one hand, for some plates with uneven thickness and complex material characteristics, it is difficult for the parallel roller system to achieve uniform straightening of all parts of the plate, which can easily lead to local deformation of the plate after straightening, affecting the quality and subsequent use of the plate. On the other hand, the straightening force applied by the parallel roller system to the plate during the straightening process is not flexible enough, and cannot be adjusted according to the specific deformation of the plate, so that the straightening efficiency and effect need to be improved.

[0004] In addition, existing straightening machines often need to replace rollers of different specifications or perform complex equipment adjustments when dealing with plates of different widths and lengths. The operation is not convenient, which increases production time and costs.

[0005] Combining the above two points of view, it is found that it is difficult to avoid the above problems at the same time when the existing plate straightening machines on the market are in use, and even if they can be solved, complex equipment adjustments are required, which cannot achieve the desired effect. Therefore, we propose a plate straightening machine with a staggered roller system structure that can accurately straighten various complex deformation conditions of the plate during use without frequent replacement of equipment components or complex equipment adjustments. Summary of the invention

[0006] The purpose of the present invention is to propose a plate straightening machine with a staggered roller system structure, which has the advantage that the upper and lower roller groups can be arranged in a staggered manner in the vertical direction to form a staggered roller system structure, which can accurately straighten various complex deformation conditions of the plate, and effectively solves the problems of local non-straightening in place and inflexible distribution of straightening force in the traditional parallel roller system structure, greatly improving the flatness and quality of the plate after straightening. The design of adjustable roller diameter, side pressure parts and the setting of pre-straightening structure enable the straightening machine to adapt to plates of different thicknesses, widths and material properties, without the need for frequent replacement of equipment components or complex equipment adjustments, reducing production time and cost, and improving the versatility and adaptability of the equipment.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A plate straightening machine with a staggered roller system structure, comprising a main frame, the front and rear sides of the main frame are bolted with guide support plates, the two sides of the top of the main frame are bolted with frames, a main straightening structure is arranged between the opposite sides of the two frames, and a pre-straightening structure is arranged inside the front guide support plate;

[0008] The main straightening structure includes a fixed support plate, which is bolted to the bottom of the frame, and a movable support plate is arranged on the top of the fixed support plate, and the movable support plate is slidably connected to the top of the frame, and a lower roller group and an upper roller group are rotatably connected between the two fixed support plates and the opposite side of the movable support plate, and the upper roller group and the lower roller group are staggered in the vertical direction, and a side pressure piece is arranged between the fixed support plate and the opposite side of the movable support plate, and the side pressure piece is bolted to the side close to the frame.

[0009] By adopting the above technical scheme, a main straightening structure is set up, and a staggered roller system structure can be formed by staggering the upper roller group and the lower roller group in the vertical direction, so that the plate can be subjected to straightening forces from different directions and positions when passing through the main straightening structure. Compared with the traditional parallel roller system structure, it effectively avoids the situation where local straightening is not in place, and can achieve more comprehensive and uniform straightening of all parts of the plate, significantly improve the flatness and quality of the plate after straightening, meet higher product quality requirements, and during straightening, the side pressure piece can not only limit the lateral displacement of the plate, but also for some plates with lateral deformation such as side bending, appropriate lateral pressure can work synergistically with the vertical straightening force applied by the upper and lower roller groups, so as to enable the plate to better restore to a flat state.

[0010] The present invention is further configured as follows: the upper roller group and the lower roller group each include a plurality of correction rollers arranged in parallel, and the top correction rollers and the bottom correction rollers are arranged in a staggered manner in the vertical direction;

[0011] The correction roller includes an inner roller core, and end covers are bolted on both sides of the inner roller core, a hollow shaft is bolted on one side of the end cover, and the side of the hollow shaft close to the fixed support plate and the movable support plate is rotatably connected to the two through bearings, a plurality of outer roller sheets are arranged on the surface of the inner roller core, and the outer roller sheets are arranged in a ring shape, a screw rod is rotatably connected to the inside of the inner roller core, and a screw sleeve is threadedly connected to the surface of the screw rod, support blocks are bolted on the surface of the screw sleeve and the inner wall of the outer roller sheet, and a connecting rod is rotatably connected between the opposite sides of two adjacent support blocks.

[0012] By adopting the above technical scheme, by setting up straightening rollers, and by staggeredly arranging the top straightening rollers and the bottom straightening rollers in the vertical direction, the situation of local inadequate straightening can be effectively avoided, and more comprehensive and uniform straightening of various parts of the plate can be achieved. According to the thickness of the plate, by rotating the screw, the screw sleeve connected to the threaded surface of the screw will move along the axial direction of the screw. The movement of the screw sleeve drives the outer roller to adjust the position relative to the inner roller core through the support block and the connecting rod, thereby changing the effective roller diameter of the straightening roller. When the plate passes, the straightening rollers at different positions apply straightening force to the plate from different directions, adjust the uneven stress inside the plate, and gradually restore it to flatness.

[0013] The present invention is further configured as follows: a gap is provided between the outer roller sheet and the inner roller core, and flexible sealing sheets are provided on both sides between the opposite sides of the two, and the side of the flexible sealing sheet close to the outer roller sheet and the inner roller core is connected to the two respectively.

[0014] By adopting the above technical solution, a flexible sealing sheet is set. During the daily operation of the correction roller and the adjustment of the outer roller sheet, the flexible sealing sheet is tightly fitted between the outer roller sheet and the inner roller core to form a barrier to prevent dust, debris and other impurities from entering the interior along the gap between the outer roller sheet and the inner roller core. Regardless of whether the outer roller sheet is in a relatively static state or changes position, the flexible sealing sheet can deform freely to ensure the cleanliness and normal operation of the internal structure, and the outer roller sheet has a certain offset from the front to the back on the surface of each inner roller core, thereby ensuring that the outer roller sheet covers every position on the surface of the plate to avoid omissions.

[0015] The present invention is further configured as follows: both sides of the screw rod extend to the interior of the hollow shaft, and both ends of the screw rod surface are sleeved with fixing rings, and the surface of the fixing ring is provided with a support rod in a ring shape, and the support rod is connected to the side close to the inner wall of the hollow shaft, and the threaded sleeves are arranged equidistantly on the surface of the screw rod.

[0016] By adopting the above technical solution, support rods and fixed rings are set up to ensure that the screw rod is firmly supported and positioned in the hollow shaft, preventing the screw rod from axial movement or radial displacement during rotation. By equidistantly arranging the screw sleeves on the surface of the screw rod, each screw sleeve and other structures can drive the outer roller to move at a uniform interval, thereby achieving uniform adjustment of the outer roller relative to the inner roller core.

[0017] The present invention is further configured as follows: the side pressure member includes a mounting bracket, the mounting bracket is connected to the frame on a side close to the frame, and a plurality of hydraulic cylinders are bolted inside the mounting bracket, a side pressure plate is arranged between the fixed support plate and the movable support plate on opposite sides, the hydraulic cylinder is connected to the side pressure plate on a side close to the side pressure plate, a sealing plate is bolted inside the side of the side pressure plate away from the hydraulic cylinder, and a plurality of equally distributed side pressure wheels are arranged on a side of the sealing plate away from the inner wall of the side pressure plate, a rubber sleeve is sleeved on the surface of the side pressure wheel, two guide rods are bolted on the side of the side pressure wheel close to the sealing plate, and the guide rods extend to the inside of the side pressure plate close to the sealing plate, a positioning spring is sleeved on the surface of the guide rod, and the positioning spring is respectively connected to the side pressure wheel and the sealing plate on one side close to the two.

[0018] By adopting the above technical scheme, by setting a side pressure piece, the hydraulic cylinder in the mounting bracket can be controlled to retract and retract, thereby pushing the side pressure plate towards or away from the plate, and adjusting the side pressure applied by the side pressure plate to the plate. When the side pressure plate contacts the plate, the side pressure wheel contacts the surface of the plate through the rubber sleeve, and transmits the side pressure to the plate. If the plate is locally deformed in a certain area, causing the side pressure in the area to increase or decrease, the positioning spring will automatically retract and retract according to the pressure change, and drive the side pressure wheel to adjust its position within a certain range through the guide rod, so that the side pressure wheel can continue to effectively apply side pressure to the plate. At the same time, the rubber sleeve buffers the hard contact between the side pressure wheel and the plate, protecting the surface of the plate.

[0019] The present invention is further configured as follows: a magnetic block is bolted between one side of the two guide rods, and an electromagnet is bolted inside the side pressure plate, and the electromagnet is used in conjunction with the magnetic block.

[0020] By adopting the above technical solution, by setting up the coordinated use of magnetic blocks and electromagnets and utilizing the repulsion between the two, the moving distance of the side pressure wheel can be limited, so that the guide rod and the side pressure wheel can exert a certain lateral pressure on the plate to ensure the lateral straightening effect.

[0021] The present invention is further configured as follows: studs are threadedly penetrated through the front and rear sides of the frame, and the bottoms of the studs are rotatably connected to the movable support plate through bearings.

[0022] By adopting the above technical solution, by setting the stud, the thread of the stud and the frame can be matched to facilitate the adjustment of the distance between the upper roller group and the lower roller group, so as to achieve the effect of flexible adjustment according to needs.

[0023] The present invention is further configured as follows: the pre-straightening structure comprises an upper pre-straightening roller group and a lower pre-straightening roller group which are arranged in parallel, and the upper pre-straightening roller group and the lower pre-straightening roller group are arranged opposite to each other in the vertical direction, both sides of the upper pre-straightening roller group and the lower pre-straightening roller group are rotatably connected to a mounting base through bearings, the bottom mounting base is bolted to the bottom of the front guide support plate, both sides of the top of the front guide support plate are bolted to connecting brackets, and the upper pre-straightening roller group is arranged inside between opposite sides of the two connecting brackets, a connecting block is bolted between opposite sides of the two top mounting bases, and a pressure piece is bolted to the top of the connecting block and the top of the top mounting base, the top of the pressure piece is bolted to the inner wall of the connecting bracket, a fixing frame is bolted between the front sides of the two top mounting bases, and a roller is rotatably connected to the inside of the fixing frame, and a plurality of lifting support plates are welded in an annular shape on the surface of the roller.

[0024] By adopting the above technical solution and setting up a pre-straightening structure, the plate first contacts the lifting support plate at the bottom and drives the roller to rotate, so that the lifting support plate on the front side contacts the top of the plate, which can make the roller and the fixed frame rise and make the upper pre-straightening roller group rise, so as to adapt to the thickness of the plate. As the plate enters between the upper pre-straightening roller group and the lower pre-straightening roller group, the upper pre-straightening roller group and the lower pre-straightening roller group perform preliminary straightening on the plate from the top and bottom directions, and apply straightening force to the plate by rotation to adjust some obvious deformation of the plate. At the same time, the pressure piece on the top mounting base applies a certain pressure to the top mounting base and related components to ensure the stability of the pre-straightening structure during operation, so that the pre-straightening work can be carried out effectively.

[0025] The present invention is further configured as follows: the pressure piece includes a fixed cylinder, the fixed cylinder is bolted to the top of the inner wall of the connecting bracket, and a connecting rod is slidably arranged inside the fixed cylinder, the bottom of the connecting rod is bolted to the top mounting base and the connecting block respectively, the surface of the fixed cylinder is sleeved with a pressure spring, and the top and bottom of the pressure spring are respectively connected to the connecting bracket, the top mounting base and the connecting block, a piston plate is bolted to the top of the connecting rod, and the surface of the piston plate is in sliding contact with the inner wall of the fixed cylinder, hydraulic oil is filled between the piston plate and the inner wall of the fixed cylinder, and a sealing ring is sleeved on the surface of the piston plate.

[0026] By adopting the above technical solution and arranging a pressure piece, when the upper pre-straightening roller group and the top base move upward, the connecting rod will be synchronously pushed into the interior of the fixed cylinder, and the piston plate will move in the fixed cylinder, while the pressure spring will contract and the oil in the fixed cylinder will be compressed. By utilizing the elasticity of the pressure spring and the incompressibility of the hydraulic oil, the pressure can be reacted to the top mounting base, thereby maintaining a certain pressure between the upper pre-straightening roller group and the plate, thereby achieving the effect of pre-straightening the plate.

[0027] The present invention is further configured as follows: the rear side of the fixing bracket penetrates through the interior of the connecting bracket and is bolted to the top mounting base, and the front side of the interior of the connecting bracket is provided with a movable hole used in conjunction with the fixing bracket.

[0028] By adopting the above technical solution, by setting the movable holes, the setting of the movable holes provides a certain movable space for the movement of the fixed frame in the connecting bracket, so that when the fixed frame moves, the upper pre-straightening roller group can be driven to move synchronously.

[0029] In summary, the present invention has the following beneficial effects:

[0030] 1. By setting up the main straightening structure, the upper roller group and the lower roller group are staggered in the vertical direction to form a staggered roller system structure, so that the plate can be subjected to straightening forces from different directions and positions when passing through the main straightening structure. Compared with the traditional parallel roller system structure, it effectively avoids the situation that the local straightening is not in place, and can achieve more comprehensive and uniform straightening of all parts of the plate, significantly improve the flatness and quality of the plate after straightening, and meet higher product quality requirements. In addition, during straightening, the side pressure piece can not only limit the lateral displacement of the plate, but also for some plates with lateral deformation such as lateral bending, the appropriate lateral pressure can work together with the vertical straightening force applied by the upper and lower roller groups to make the plate better restored to a flat state;

[0031] 2. By setting up the pre-straightening structure, the plates entering the straightening machine can be initially straightened. For plates with uneven thickness and complex material characteristics, they can be flattened to a certain extent in the pre-straightening stage to reduce the deformation of the plates and prepare for the subsequent fine straightening of the main straightening roller group, effectively optimizing the entire straightening process and improving the overall efficiency and effect of straightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the main straightening structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the connection between the upper roller group and the lower roller group and the plate of the present invention;

[0035] Figure 4 It is a schematic diagram of the correction roller structure of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the side pressure piece of the present invention;

[0037] Figure 6 is a schematic diagram of the pre-straightening structure of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the pressing member of the present invention.

[0039] Figure numerals: 1. main frame; 2. guide support plate; 3. frame; 4. main straightening structure; 41. fixed support plate; 42. movable support plate; 43. upper roller group; 44. lower roller group; 45. side pressure piece; 451. mounting bracket; 452. hydraulic cylinder; 453. side pressure plate; 454. sealing plate; 455. side pressure wheel; 456. rubber sleeve; 457. guide rod; 458. positioning spring; 5. pre-straightening structure; 51. upper pre-straightening roller group; 52. lower pre-straightening roller group; 53. mounting base; 54. connection Bracket; 55, connecting block; 56, roller; 57, pressure piece; 571, fixing cylinder; 572, connecting rod; 573, pressure spring; 574, piston plate; 575, sealing ring; 58, fixing frame; 59, lifting support plate; 6, correction roller; 61, inner roller core; 62, end cover; 63, hollow shaft; 64, outer roller piece; 65, screw rod; 66, screw sleeve; 67, support block; 68, connecting rod; 7, flexible sealing sheet; 8, fixing ring; 9, support rod; 10, magnetic block; 11, electromagnet; 12, stud. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0041] Embodiment 1:

[0042] refer to Figure 1-5 A plate straightening machine with a staggered roller system structure comprises a main frame 1, a guide support plate 2 is bolted to the front and rear sides of the main frame 1, frames 3 are bolted to both sides of the top of the main frame 1, a main straightening structure 4 is arranged between the two opposite sides of the two frames 3, and a pre-straightening structure 5 is arranged inside the front guide support plate 2;

[0043] The main straightening structure 4 includes a fixed support plate 41, which is bolted to the bottom of the frame 3, and a movable support plate 42 is arranged on the top of the fixed support plate 41, and the movable support plate 42 is slidably connected to the top of the frame 3. A lower roller group 44 and an upper roller group 43 are rotatably connected between the two fixed support plates 41 and the opposite sides of the movable support plate 42, and the upper roller group 43 and the lower roller group 44 are staggered in the vertical direction. A side pressure piece 45 is arranged between the opposite sides of the fixed support plate 41 and the movable support plate 42, and the side pressure piece 45 is bolted to the frame 3. By setting the main straightening structure 4, the upper roller group 43 and the lower roller group 44 are staggered in the vertical direction. The staggered arrangement can form a staggered roller system structure, so that the plate can be subjected to straightening forces from different directions and positions when passing through the main straightening structure 4. Compared with the traditional parallel roller system structure, it effectively avoids the situation where local straightening is not in place, and can achieve more comprehensive and uniform straightening of various parts of the plate, significantly improve the flatness and quality of the plate after straightening, and meet higher product quality requirements. In addition, during straightening, the side pressure piece 45 can not only limit the lateral displacement of the plate, but also for some plates with lateral deformation such as side bending, appropriate lateral pressure can work together with the vertical straightening force applied by the upper and lower roller groups 44 to enable the plate to better restore to a flat state.

[0044] like Figure 3 and 4 As shown, the upper roller group 43 and the lower roller group 44 each include a plurality of correction rollers 6 arranged in parallel, and the top correction rollers 6 and the bottom correction rollers 6 are arranged in a staggered manner in the vertical direction;

[0045] The correction roller 6 includes an inner roller core 61, and both sides of the inner roller core 61 are bolted with end covers 62, one side of the end cover 62 is bolted with a hollow shaft 63, and the side of the hollow shaft 63 close to the fixed support plate 41 and the movable support plate 42 is rotatably connected to the two through bearings, and the surface of the inner roller core 61 is provided with a plurality of outer roller pieces 64, and the outer roller pieces 64 are arranged in an annular shape, and the inner part of the inner roller core 61 is rotatably connected with a screw rod 65, and the surface of the screw rod 65 is threadedly connected with a screw sleeve 66, and the surface of the screw sleeve 66 and the inner wall of the outer roller piece 64 are bolted with a support block 67, and the opposite sides of two adjacent support blocks 67 are rotatably connected with a connecting rod 68. By setting the correction roller 6, through the top The straightening rollers 6 and the bottom straightening rollers 6 are staggered in the vertical direction, which effectively avoids the situation where local straightening is not in place, and can achieve more comprehensive and uniform straightening of various parts of the plate. According to the thickness of the plate, by rotating the screw rod 65, the screw sleeve 66 threaded on the surface of the screw rod 65 will move axially along the screw rod 65. The movement of the screw sleeve 66 drives the outer roller piece 64 to adjust its position relative to the inner roller core 61 through the support block 67 and the connecting rod 68, thereby changing the effective roller diameter of the straightening roller 6. When the plate passes through, the straightening rollers 6 at different positions apply straightening force to the plate from different directions, adjust the uneven stress inside the plate, and gradually restore it to flatness.

[0046] like Figure 4 As shown, a gap is provided between the outer roller sheet 64 and the inner roller core 61, and flexible sealing sheets 7 are provided on both sides between the opposite sides of the two. The flexible sealing sheets 7 are connected to the outer roller sheet 64 and the inner roller core 61 on one side thereof close to the outer roller sheet 64 and the inner roller core 61 respectively. By providing the flexible sealing sheets 7, during the daily operation of the correction roller 6 and the adjustment process of the outer roller sheet 64, the flexible sealing sheets 7 fit tightly between the outer roller sheet 64 and the inner roller core 61 to form a barrier to prevent dust, debris and other impurities from entering the interior along the gap between the outer roller sheet 64 and the inner roller core 61. Regardless of whether the outer roller sheet 64 is in a relatively stationary state or changes position, the flexible sealing sheets 7 can be deformed freely to ensure the cleanliness and normal operation of the internal structure. In addition, the outer roller sheet 64 has a certain offset from the front to the back at the angle of each surface of the inner roller core 61, thereby ensuring that the outer roller sheet 64 covers every position on the surface of the plate to avoid omissions.

[0047] like Figure 4As shown, both sides of the screw rod 65 extend to the interior of the hollow shaft 63, and both ends of the surface of the screw rod 65 are sleeved with fixing rings 8, and the surface of the fixing ring 8 is provided with a support rod 9 in a ring shape, and the support rod 9 is connected to the side close to the inner wall of the hollow shaft 63, and the screw sleeves 66 are arranged on the surface of the screw rod 65 at equal intervals. By arranging the support rod 9 and the fixing ring 8, the screw rod 65 is firmly supported and positioned in the hollow shaft 63 to prevent the screw rod 65 from axial movement or radial displacement during rotation. By arranging the screw sleeves 66 on the surface of the screw rod 65 at equal intervals, each screw sleeve 66 and other structures can drive the outer roller piece 64 to move at a uniform interval, thereby realizing the uniform adjustment of the outer roller piece 64 relative to the inner roller core 61.

[0048] like Figure 5 As shown, the side pressure member 45 includes a mounting bracket 451, the side of the mounting bracket 451 close to the frame 3 is connected thereto, and a plurality of hydraulic cylinders 452 are bolted inside the mounting bracket 451, a side pressure plate 453 is arranged between the fixed support plate 41 and the movable support plate 42 on the opposite side, the side of the hydraulic cylinder 452 close to the side pressure plate 453 is connected thereto, a sealing plate 454 is bolted inside the side of the side pressure plate 453 away from the hydraulic cylinder 452, and a plurality of equidistantly distributed side pressure wheels 455 are arranged on the side of the sealing plate 454 away from the inner wall of the side pressure plate 453, a rubber sleeve 456 is sleeved on the surface of the side pressure wheel 455, two guide rods 457 are bolted on the side of the side pressure wheel 455 close to the sealing plate 454, and the guide rods 457 extend to the inside of the side pressure plate 453 close to the sealing plate 454, a positioning spring 458 is sleeved on the surface of the guide rod 457, and the positioning spring 458 is sleeved on the surface of the guide rod 457. 58 is connected to the side of the side pressure wheel 455 and the sealing plate 454 respectively. By setting the side pressure piece 45, the hydraulic cylinder 452 in the mounting bracket 451 can be controlled to retract and retract, thereby pushing the side pressure plate 453 to move closer to or away from the plate, and adjusting the side pressure applied by the side pressure plate 453 to the plate. When the side pressure plate 453 contacts the plate, the side pressure wheel 455 contacts the surface of the plate through the rubber sleeve 456, and transmits the side pressure to the plate. If the plate is locally deformed in a certain area, resulting in an increase or decrease in the side pressure in the area, the positioning spring 458 will automatically retract and retract according to the pressure change, and drive the side pressure wheel 455 to adjust its position within a certain range through the guide rod 457, so that the side pressure wheel 455 can continue to effectively apply side pressure to the plate. At the same time, the rubber sleeve 456 buffers the hard contact between the side pressure wheel 455 and the plate to protect the surface of the plate.

[0049] like Figure 5As shown, a magnetic block 10 is bolted between one side of the two guide rods 457, and an electromagnet 11 is bolted inside the side pressure plate 453. The electromagnet 11 is used in conjunction with the magnetic block 10. By setting the magnetic block 10 and the electromagnet 11 for coordinated use and utilizing the repulsion between the two, the moving distance of the side pressure wheel 455 can be limited, so that the guide rod 457 and the side pressure wheel 455 can apply a certain lateral pressure to the plate to ensure the lateral straightening effect.

[0050] like Figure 2 As shown, the front and rear sides of the frame 3 are both threaded with studs 12, and the bottom of the studs 12 is rotatably connected to the movable support plate 42 through a bearing.

[0051] By adopting the above technical solution, by setting the stud 12, the threaded cooperation between the stud 12 and the frame 3 can facilitate the adjustment of the distance between the upper roller group 43 and the lower roller group 44, achieving the effect of flexible adjustment according to needs.

[0052] Brief description of the use process: According to the thickness of the plate, by rotating the screw rod 65, the screw sleeve 66 connected to the threaded surface of the screw rod 65 will move axially along the screw rod 65, and the movement of the screw sleeve 66 drives the outer roller piece 64 to adjust its position relative to the inner roller core 61 through the support block 67 and the connecting rod 68, thereby changing the effective roller diameter of the correction roller 6, and adjusting the distance between the upper roller group 43 and the lower roller group 44 through the threaded cooperation of the stud 12 and the frame 3, and the plate after pre-straightening enters between the upper roller group 43 and the lower roller group 44. Since the correction rollers 6 of the upper roller group 43 and the lower roller group 44 are staggered in the vertical direction, when the plate passes through, the correction rollers 6 at different positions apply straightening force to the plate from different directions, adjust the uneven stress inside the plate, and gradually restore it to flatness, while When the side pressure plate 453 is in contact with the plate, the side pressure wheel 455 contacts the surface of the plate through the rubber sleeve 456, and transmits the side pressure to the plate. If the plate is locally deformed in a certain area, resulting in an increase or decrease in the side pressure in the area, the positioning spring 458 will automatically expand and contract according to the pressure change, and drive the side pressure wheel 455 to adjust its position within a certain range through the guide rod 457, so that the side pressure wheel 455 can continue to effectively apply side pressure to the plate. Appropriate lateral pressure can work together with the vertical straightening force applied by the upper and lower roller groups 44 to enable the plate to be better restored to a flat state.

[0053] Embodiment 2:

[0054] refer to Figure 6-7, including a main frame 1, the front and rear sides of the main frame 1 are bolted with guide support plates 2, the two sides of the top of the main frame 1 are bolted with frames 3, a main straightening structure 4 is arranged between the two opposite sides of the two frames 3, and a pre-straightening structure 5 is arranged inside the front guide support plate 2. By setting the pre-straightening structure 5, the plate entering the straightening machine can be preliminarily straightened. For plates with uneven thickness and complex material properties, they can be flattened to a certain extent in the pre-straightening stage to reduce the deformation of the plates, so as to prepare for the subsequent fine straightening of the main straightening roller 6 groups, effectively optimizing the entire straightening process and improving the overall efficiency and effect of straightening.

[0055] like Figure 6 As shown, the pre-straightening structure 5 includes two upper pre-straightening roller groups 51 and a lower pre-straightening roller group 52 arranged in parallel, and the upper pre-straightening roller group 51 and the lower pre-straightening roller group 52 are arranged opposite to each other in the vertical direction, and both sides of the upper pre-straightening roller group 51 and the lower pre-straightening roller group 52 are rotatably connected with a mounting base 53 through a bearing, the bottom mounting base 53 is bolted to the bottom of the front guide support plate 2, and both sides of the top of the front guide support plate 2 are bolted with a connecting bracket 54, and the upper pre-straightening roller group 51 is arranged inside between the opposite sides of the two connecting brackets 54, a connecting block 55 is bolted between the opposite sides of the top two mounting bases 53, and a pressing piece 57 is bolted to the top of the connecting block 55 and the top of the top mounting base 53, and the top of the pressing piece 57 is bolted to the inner wall of the connecting bracket 54, and a fixing frame 58 is bolted between the front sides of the two mounting bases 53 at the top, and the fixing frame 58 The roller 56 is connected to the inner rotation, and the surface of the roller 56 is welded with a plurality of lifting support plates 59 in an annular shape. By setting the pre-straightening structure 5, the plate first contacts the lifting support plate 59 at the bottom and drives the roller 56 to rotate, so that the lifting support plate 59 on the front side contacts the top of the plate, which can make the roller 56 and the fixing frame 58 rise and make the upper pre-straightening roller group 51 rise, so as to adapt to the thickness of the plate. As the plate enters between the upper pre-straightening roller group 51 and the lower pre-straightening roller group 52, the upper pre-straightening roller group 51 and the lower pre-straightening roller group 52 perform preliminary straightening on the plate from the top and bottom directions, apply straightening force to the plate by rotation, and adjust some obvious deformation of the plate. At the same time, the pressure piece 57 on the top mounting base 53 applies a certain pressure to the top mounting base 53 and related components to ensure the stability of the pre-straightening structure 5 during operation, so that the pre-straightening work can be carried out effectively.

[0056] like Figure 7As shown, the pressing member 57 includes a fixed cylinder 571, which is bolted to the top of the inner wall of the connecting bracket 54, and a connecting rod 572 is slidably arranged inside the fixed cylinder 571, and the bottom of the connecting rod 572 is bolted to the top mounting base 53 and the connecting block 55 respectively, and a pressing spring 573 is sleeved on the surface of the fixed cylinder 571, and the top and bottom of the pressing spring 573 are respectively connected to the connecting bracket 54, the top mounting base 53 and the connecting block 55, and a piston plate 574 is bolted to the top of the connecting rod 572, and the surface of the piston plate 574 is in sliding contact with the inner wall of the fixed cylinder 571, and the piston plate 574 is in sliding contact with the fixed cylinder 571. The inner wall of the cylinder 57 is filled with hydraulic oil, and the surface of the piston plate 574 is sleeved with a sealing ring 575. By arranging the pressure piece 57, when the upper pre-straightening roller group 51 and the top base move upward, the connecting rod 572 will be synchronously pushed into the interior of the fixed cylinder 571, and the piston plate 574 will move in the fixed cylinder 571, and at the same time, the pressure spring 573 will be contracted and the oil in the fixed cylinder 571 will be compressed. By utilizing the elasticity of the pressure spring 573 and the incompressibility of the hydraulic oil, the pressure can be reacted to the top mounting base 53, so that a certain pressure is maintained between the upper pre-straightening roller group 51 and the plate, so as to achieve the effect of pre-straightening the plate.

[0057] like Figure 6 As shown, the rear side of the fixing frame 58 passes through the interior of the connecting bracket 54 and is bolted to the top mounting base 53. The front side of the interior of the connecting bracket 54 is provided with a movable hole for use with the fixing frame 58. By setting the movable hole, the setting of the movable hole provides a certain movable space for the movement of the fixing frame 58 in the connecting bracket 54, so that when the fixing frame 58 moves, it can synchronously drive the upper pre-straightening roller group 51 to move.

[0058] Brief description of the use process: the plate first contacts the lifting support plate 59 at the bottom and drives the roller 56 to rotate, so that the lifting support plate 59 on the front side contacts the top of the plate, which can make the roller 56 and the fixing frame 58 rise and make the upper pre-straightening roller group 51 rise. As the top mounting base 53 moves upward, the connecting rod 572 will be synchronously pushed into the interior of the fixing cylinder 571, and the piston plate 574 will move in the fixing cylinder 571, and at the same time, the pressure spring 573 will be contracted and the oil in the fixing cylinder 571 will be compressed. By utilizing the elasticity of the pressure spring 573 and the incompressibility of the hydraulic oil, the pressure can be reacted to the top mounting base 53, so that a certain pressure is maintained between the upper pre-straightening roller group 51 and the plate. As the plate enters between the upper pre-straightening roller group 51 and the lower pre-straightening roller group 52, the upper pre-straightening roller group 51 and the lower pre-straightening roller group 52 perform preliminary straightening on the plate from the top and bottom directions, apply straightening force to the plate by rotation, and adjust some obvious deformation of the plate.

[0059] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A plate straightening machine with a staggered roller system structure, comprising a main frame (1), characterized in that: The front and rear sides of the main frame (1) are both bolted with guide support plates (2), the top of the main frame (1) is bolted with frames (3) on both sides, a main straightening structure (4) is arranged between the two opposite sides of the two frames (3), and a pre-straightening structure (5) is arranged inside the front guide support plate (2); The main straightening structure (4) includes a fixed support plate (41), the fixed support plate (41) is bolted to the bottom of the frame (3), and a movable support plate (42) is arranged on the top of the fixed support plate (41), and the movable support plate (42) is slidably connected to the top of the frame (3). A lower roller group (44) and an upper roller group (43) are rotatably connected between the two fixed support plates (41) and the opposite sides of the movable support plate (42), and the upper roller group (43) and the lower roller group (44) are staggered in the vertical direction. A side pressure piece (45) is arranged between the fixed support plate (41) and the opposite sides of the movable support plate (42), and the side pressure piece (45) is bolted to the frame (3) on the side close to the frame (3).

2. A plate straightening machine with a staggered roller system structure according to claim 1, characterized in that: The upper roller group (43) and the lower roller group (44) each include a plurality of correction rollers (6) arranged in parallel, and the top correction rollers (6) and the bottom correction rollers (6) are arranged in a staggered manner in the vertical direction; The correction roller (6) comprises an inner roller core (61), and both sides of the inner roller core (61) are bolted with end covers (62), one side of the end cover (62) is bolted with a hollow shaft (63), and the side of the hollow shaft (63) close to the fixed support plate (41) and the movable support plate (42) is rotatably connected to both through bearings, the surface of the inner roller core (61) is provided with a plurality of outer roller sheets (64), and the outer roller sheets (64) are arranged in a ring shape, the inner part of the inner roller core (61) is rotatably connected with a screw rod (65), and the surface of the screw rod (65) is threadedly connected with a screw sleeve (66), the surface of the screw sleeve (66) and the inner wall of the outer roller sheet (64) are bolted with support blocks (67), and a connecting rod (68) is rotatably connected between the opposite sides of two adjacent support blocks (67).

3. A plate straightening machine with a staggered roller system structure according to claim 2, characterized in that: A gap is provided between the outer roller sheet (64) and the inner roller core (61), and flexible sealing sheets (7) are provided on both sides between the opposite sides of the two. The side of the flexible sealing sheet (7) close to the outer roller sheet (64) and the inner roller core (61) is respectively connected to the two.

4. The plate straightening machine with a staggered roller system structure according to claim 2, characterized in that: Both sides of the screw rod (65) extend into the interior of the hollow shaft (63), and both ends of the surface of the screw rod (65) are sleeved with fixing rings (8), and the surface of the fixing ring (8) is provided with a support rod (9) in an annular shape, and the support rod (9) is connected to the inner wall of the hollow shaft (63) at one side thereof, and the screw sleeves (66) are arranged on the surface of the screw rod (65) at equal intervals.

5. The plate straightening machine with a staggered roller system structure according to claim 1, characterized in that: The side pressure member (45) comprises a mounting bracket (451), the side of the mounting bracket (451) being connected to the frame (3) at a side thereof, and a plurality of hydraulic cylinders (452) being bolted to the inside of the mounting bracket (451), a side pressure plate (453) being arranged between the fixed support plate (41) and the movable support plate (42) at a side opposite to each other, the side of the hydraulic cylinder (452) being connected to the side pressure plate (453), the side of the side pressure plate (453) being bolted to the inside of the side pressure plate (453) being away from the hydraulic cylinder (452), and the sealing plate (454) being away from the side pressure plate (453). A plurality of equally spaced side pressure wheels (455) are provided on one side of the inner wall of the plate (453), and a rubber sleeve (456) is sleeved on the surface of the side pressure wheel (455). Two guide rods (457) are bolted to one side of the side pressure wheel (455) close to the sealing plate (454), and the guide rods (457) extend from the inside of the sealing plate (454) to the inside of the side pressure plate (453). A positioning spring (458) is sleeved on the surface of the guide rod (457), and the positioning spring (458) is connected to the side pressure wheel (455) and the sealing plate (454) on one side respectively.

6. A plate straightening machine with a staggered roller system structure according to claim 5, characterized in that: A magnetic block (10) is bolted between one side of the two guide rods (457), and an electromagnet (11) is bolted inside the side pressure plate (453), and the electromagnet (11) is used in conjunction with the magnetic block (10).

7. The plate straightening machine with a staggered roller system structure according to claim 1, characterized in that: The front and rear sides of the frame (3) are both threadedly penetrated by studs (12), and the bottom of the studs (12) is rotatably connected to the movable support plate (42) via a bearing.

8. The plate straightening machine with a staggered roller system structure according to claim 1, characterized in that: The pre-straightening structure (5) comprises two upper pre-straightening roller groups (51) and a lower pre-straightening roller group (52) arranged in parallel, and the upper pre-straightening roller group (51) and the lower pre-straightening roller group (52) are arranged opposite to each other in the vertical direction, both sides of the upper pre-straightening roller group (51) and the lower pre-straightening roller group (52) are rotatably connected to a mounting base (53) via a bearing, the bottom mounting base (53) is bolted to the bottom of the front guide support plate (2), both sides of the top of the front guide support plate (2) are bolted to a connecting bracket (54), and the upper pre-straightening roller group (51) A connecting block (55) is bolted between opposite sides of two connecting brackets (54), and the connecting block (55) and the top of the top mounting base (53) are both bolted with a pressure piece (57), and the top of the pressure piece (57) is bolted to the inner wall of the connecting bracket (54). A fixing frame (58) is bolted between the front sides of the two top mounting bases (53), and a roller (56) is rotatably connected to the inside of the fixing frame (58), and a plurality of lifting support plates (59) are welded in a ring shape on the surface of the roller (56).

9. A plate straightening machine with a staggered roller system structure according to claim 8, characterized in that: The pressure member (57) comprises a fixed cylinder (571), the fixed cylinder (571) is bolted to the top of the inner wall of the connecting bracket (54), and a connecting rod (572) is slidably arranged inside the fixed cylinder (571), the bottom of the connecting rod (572) is bolted to the top mounting base (53) and the connecting block (55) respectively, a pressure spring (573) is sleeved on the surface of the fixed cylinder (571), and the top and bottom of the pressure spring (573) are respectively connected to the connecting bracket (54), the top mounting base (53) and the connecting block (55), a piston plate (574) is bolted to the top of the connecting rod (572), and the surface of the piston plate (574) is in sliding contact with the inner wall of the fixed cylinder (571), hydraulic oil is filled between the piston plate (574) and the inner wall of the fixed cylinder (571), and a sealing ring (575) is sleeved on the surface of the piston plate (574).

10. The plate straightening machine with a staggered roller system structure according to claim 8, characterized in that: The rear side of the fixing frame (58) passes through the interior of the connecting bracket (54) and is bolted to the top mounting base (53), and the front side of the interior of the connecting bracket (54) is provided with a movable hole for use with the fixing frame (58).

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