Leveling machine

Abstract

The utility model relates to the technical field of steel plate leveling, in particular to a leveler which comprises a first roller, a second roller and a detection device, and the first roller and the second roller are kept parallel and rotatably arranged at a machine box. The second roller can move relative to the first roller; the detection device is arranged at the case and can detect the distance between the first roller and the second roller; according to the leveler, the distance between the first roller and the second roller can be adjusted through the movable second roller, so that the extrusion force of the first roller and the second roller on the silencing piece is changed, and wrinkles and disengagement of cold viscose glue caused by large-load rolling of the first roller and the second roller are avoided; the distance between the first roller and the second roller in each group is detected in real time through the multiple detection devices, the distance between the first roller and the second roller in each group can be conveniently adjusted to be consistent, the load borne by the silencing piece can be kept constant, and the phenomenon that the leveled silencing piece is twisted is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate leveling, in particular to a leveling machine. Background Art

[0002] Automobile silencers are composite materials with high-strength steel plates as substrates and rubber or glue on both sides. They are attached to the back of brake pads to reduce vibration and noise. The thickness of high-strength steel plates is mainly below 0.7mm, but the unevenness of steel plates with a yield strength of 550Mpa is difficult to control. For steel plates with a minimum yield strength of not less than 260MPa and a material width of 1200-1500mm, the unevenness can only be controlled within 9mm. The unevenness of the steel plate will affect the flatness of the silencer after cold stamping, which is the most important key product feature of the product.

[0003] Roller plate leveling machine uses the "Bauschinger effect" of materials to bend the plate multiple times, so that the various original curvatures gradually become a single curvature, and finally level it. The basic structure of the usual material roller leveling machine is 3 leveling rollers on the top and 4 on the bottom. Although it is independently adjusted at four points, the 3 leveling rollers on it are fixed on the frame as a whole, and the effect of stress relief and leveling is limited. At the same time, after the material is leveled, it is easy to cause centrifugal paper wrinkles or separation on the glue side. Utility Model Content

[0004] In view of the above problems existing in the prior art, the utility model provides a leveling machine.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A leveling machine comprises a first roller, a second roller and a detection device.

[0007] The first roller and the second roller are maintained parallel and rotatably arranged on the chassis;

[0008] The second roller is movable relative to the first roller to adjust the distance between the first roller and the second roller;

[0009] The detection device is arranged at the chassis and can detect the distance between the first roller and the second roller.

[0010] Preferably, the chassis comprises a first side wall and a second side wall parallel to each other, and a third side wall connecting the first side wall and the second side wall;

[0011] The two ends of the first roller and the second roller are rotatably connected to the first side wall and the second side wall respectively; when the second roller is moved, the second roller moves in a direction perpendicular to the third side wall.

[0012] As a preference, it further comprises a moving plate, an adjusting hole and an adjusting rod;

[0013] The movable plate is disposed between the second roller and the third side wall, and two ends of the movable plate are rotatably connected to two ends of the second roller respectively;

[0014] The adjustment hole is arranged on the third side wall and penetrates the third side wall;

[0015] The first end of the adjusting rod is connected to the moving plate, and the second end passes through the adjusting hole;

[0016] The second end of the adjusting rod can reciprocate along the axial direction of the adjusting hole.

[0017] As a preference, it also includes an external thread and an adjusting nut,

[0018] The external thread is provided on the second end of the adjusting rod;

[0019] When the second end of the adjusting rod passes through the adjusting hole, the adjusting nut is threadedly connected to the adjusting rod.

[0020] Preferably, the movable plate includes a first connecting plate, a second connecting plate and a third connecting plate connecting the first connecting plate and the second connecting plate.

[0021] Two ends of the second roller are rotatably connected to the first connecting plate and the second connecting plate respectively;

[0022] The first end of the adjusting rod is fixedly connected to the third connecting plate.

[0023] Preferably, the first ends of the first roller and the second roller at the first side wall pass through the first side wall and extend out of the chassis;

[0024] Transmission gears are provided on the first ends of the first roller and the second roller extending out of the chassis, and the transmission gears on the adjacent first roller and the second roller are meshed with each other.

[0025] Preferably, a guide rail is provided on the first side wall and / or the second side wall; a guide groove for the guide rail to extend into is provided at a position on the movable plate corresponding to the guide rail, and the guide groove extends along the moving direction of the second roller;

[0026] During the movement of the second roller, the guide rail can reciprocate in the guide groove.

[0027] Preferably, a detection port is provided on the third side wall, and the detection device is arranged at the detection port;

[0028] When the second roller moves, the detection device can detect the distance between the first roller and the second roller through the detection port.

[0029] Preferably, the detection device is a dial indicator.

[0030] Preferably, a positioning frame is provided on a side of the third side wall away from the movable plate;

[0031] The dial gauge is fixedly connected to the positioning frame and the detection end of the dial gauge abuts against the movable plate through the detection port.

[0032] The utility model has at least the following beneficial effects:

[0033] 1. The leveling machine in the present application can better adjust the distance between the first roller and the second roller through the movable second roller to change the squeezing force of the first roller and the second roller on the silencer plate, thereby better avoiding the wrinkling and detachment of the cold adhesive caused by the heavy rolling pressure of the first roller and the second roller.

[0034] 2. The present application uses multiple detection devices to detect the distance between each group of first rollers and second rollers in real time, so that the distance between each group of first rollers and second rollers can be compared, which is convenient for adjusting the distance between each group of first rollers and second rollers to be consistent, and can keep the load on the silencer constant, avoiding the distortion of the silencer after leveling. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A first schematic diagram of a leveling machine in some embodiments of the present application is shown;

[0036] Figure 2 A second schematic diagram of a leveling machine in some embodiments of the present application is shown;

[0037] Figure 3 It shows a cross-sectional view of the leveling machine in some embodiments of the present application after the adjustment rod, the adjustment nut, the positioning frame and the detection device are hidden;

[0038] Figure 4 The figure shows an assembly diagram of the moving plate, the second roller, the guide rail, the adjusting rod and the adjusting nut in some embodiments of the present application.

[0039] The parts indicated by the numbers in the accompanying drawings are as follows:

[0040] 100, chassis; 110, first side wall; 120, second side wall; 130, third side wall; 131, adjustment hole; 132, detection port; 200, second roller; 300, first roller; 400, dial indicator; 410, gauge head; 420, detection end; 500, moving plate; 510, first connecting plate; 520, second connecting plate; 530, third connecting plate; 531, adjustment rod; 532, adjustment nut; 540, guide groove; 600, transmission gear; 700, guide rail; 800, positioning frame. DETAILED DESCRIPTION

[0041] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0042] like Figure 1-4 As shown, this embodiment provides a leveling machine, which includes a chassis 100, and a first roller 300 and a second roller 200 are rotatably provided at the chassis 100, wherein the first roller 300 and the second roller 200 are parallel to each other, and a gap is left between the first roller 300 and the second roller 200, and the flat plate to be leveled is placed in the gap between the first roller 300 and the second roller 200, so that the flat plate to be leveled passes through the first roller 300 and the second roller 200. In this process, the first roller 300 and the second roller 200 squeeze the flat plate to be leveled, so that the multiple curvatures existing on the flat plate to be leveled can be gradually changed into a single curvature. Further, the position of the second roller 200 at the chassis 100 is movable, and when it is necessary to increase the squeezing force on the flat plate to be leveled, the second roller 200 can be moved toward the direction close to the first roller 300, and when it is necessary to reduce the squeezing force on the flat plate to be leveled, the second roller 200 can be moved toward the direction away from the first roller 300. Furthermore, a detection device capable of detecting the distance between the first roller 300 and the second roller 200 is also provided at the chassis 100 .

[0043] The flattened piece to be leveled is an automobile muffler, for example. The automobile muffler has a high-strength steel plate as a substrate, and cold adhesive is applied on the side of the substrate. When leveling the muffler, the leveler in this embodiment can adjust the distance between the first roller 300 and the second roller 200 through the movable second roller 200 to change the squeezing force of the first roller 300 and the second roller 200 on the muffler, thereby preferably avoiding the wrinkling and separation of the cold adhesive under the heavy load rolling pressure of the first roller 300 and the second roller 200.

[0044] Like a general leveling machine, the number of first rollers 300 and second rollers 200 in this embodiment is also set to improve the leveling effect and leveling efficiency of the sound-absorbing sheet. At the same time, in this embodiment, each corresponding group of first rollers 300 and second rollers 200 are provided with a detection device. When the second roller 200 is moved to adjust the distance between the first roller 300 and the second roller 200, the detection device provided at the chassis 100 can detect the distance between the corresponding first roller 300 and the second roller 200 in real time; through the real-time detection of the distance between each group of first rollers 300 and the second roller 200 by multiple detection devices, the distance between each group of first rollers 300 and the second roller 200 can be compared, so as to facilitate the adjustment of the distance between each group of first rollers 300 and the second roller 200 to be consistent, so as to keep the load on the sound-absorbing sheet constant and avoid the distortion of the sound-absorbing sheet after leveling.

[0045] In some embodiments, the chassis 100 includes a first side wall 110, a second side wall 120, and a third side wall 130; the first side wall 110 and the second side wall 120 remain parallel to each other, and the third side wall 130 is perpendicular to the first side wall 110 and the second side wall 120 and is used to connect the first side wall 110 and the second side wall 120. The first ends of the first roller 300 and the second roller 200 are rotatably connected to the first side wall 110, and the second ends of the first roller 300 and the second roller 200 are rotatably connected to the second side wall 120; specifically, the second roller 200 is between the first roller 300 and the third side wall 130, and the moving direction of the second roller 200 is perpendicular to the third side wall 130.

[0046] When the squeezing pressure on the silencer plate needs to be increased, the second roller 200 can be moved as a whole in a plane perpendicular to the third side wall 130 toward the direction close to the first roller 300; when the squeezing pressure on the silencer plate needs to be reduced, the second roller 200 can be moved as a whole in a plane perpendicular to the third side wall 130 toward the direction away from the first roller 300.

[0047] In some embodiments, a movable plate 500, an adjustment hole 131 and an adjustment rod 531 are provided at the leveling machine. The movable plate 500 is provided between the second roller 200 and the third side wall 130, and the two ends of the movable plate 500 are rotatably connected to the two ends of the second roller 200, respectively, so that the second roller 200 can rotate circumferentially relative to the movable plate 500 to cooperate with the first roller 300 to squeeze the muffler. The adjustment hole 131 is provided on the third side wall 130, and the adjustment hole 131 is provided through the third side wall 130. The adjustment rod 531 passes through the adjustment hole 131, and the first end of the adjustment rod 531 is connected to the movable plate 500, and the second end of the adjustment rod 531 is on the side of the chassis 100 away from the movable plate 500. Further, the adjustment rod 531 can reciprocate in the axial direction in the adjustment hole 131.

[0048] Since the adjusting rod 531 can move in the adjusting hole 131 along the axial direction, the adjusting rod 531 can drive the moving plate 500 to move toward or away from the first roller 300 while moving, thereby enabling the second roller 200 to move toward or away from the first roller 300, and adjusting the distance between the first roller 300 and the second roller 200. The moving plate 500 can synchronously drive the two ends of the second roller 200 to move, so that the second roller 200 can always maintain a parallel state with the first roller 300, avoiding the second roller 200 from tilting and improving stability.

[0049] When the squeezing force on the silencer plate needs to be increased, the adjusting rod 531 can be moved in the adjusting hole 131 along the axial direction and toward the first roller 300; when the squeezing force on the silencer plate needs to be reduced, the adjusting rod 531 can be moved in the adjusting hole 131 along the axial direction and toward the first roller 300.

[0050] In some embodiments, an external thread is provided on the second end of the adjusting rod 531. When the second end of the adjusting rod 531 is passed through the adjusting hole 131 and extended to the side of the third side wall 130 away from the movable plate 500, an adjusting nut 532 is threadedly connected to the second end of the adjusting rod 531; when the second roller 200 needs to be moved, it is only necessary to rotate the adjusting nut 532. Specifically, when it is necessary to increase the squeezing force on the silencer plate, the adjusting nut 532 is moved toward the end direction of the second end close to the adjusting rod 531. When it is necessary to reduce the squeezing force on the silencer plate, the adjusting nut 532 is moved toward the end direction of the second end away from the adjusting rod 531.

[0051] Furthermore, the first end of the adjusting rod 531 can be connected to the movable plate 500 via a bearing, so that the adjusting rod 531 can rotate in the circumferential direction, thereby fixing the adjusting nut 532 on the third side wall 130. When adjustment is required, the adjusting rod 531 can be rotated.

[0052] In some embodiments, the movable plate 500 includes a first connecting plate 510, a second connecting plate 520 and a third connecting plate 530, wherein the first connecting plate 510 and the second connecting plate 520 remain parallel to each other, and the third connecting plate 530 is perpendicular to the first connecting plate 510 and the second connecting plate 520 and is used to connect the first connecting plate 510 and the second connecting plate 520. The first end of the second roller 200 is rotatably connected to the first connecting plate 510, and the second end of the second roller 200 is rotatably connected to the second connecting plate 520; the first end of the adjusting rod 531 is specifically connected to the third connecting plate 530. The first connecting plate 510 and the second connecting plate 520 also remain parallel to each other with the first side wall 110 and the second side wall 120, wherein the first connecting plate 510 is arranged close to the first side wall 110, and the second connecting plate 520 is arranged close to the second side wall 120.

[0053] When the third connecting plate 530 is driven to move toward or close to the first roller 300 by the adjusting rod 531, the third connecting plate 530 will synchronously drive the first connecting plate 510 and the second connecting plate 520, so that the first connecting plate 510 and the second connecting plate 520 synchronously drive the two ends of the second roller 200 to move toward or close to the first roller 300, thereby realizing the movement of the second roller 200.

[0054] In some embodiments, the first end of the first roller 300 passes through the first side wall 110 and extends outside the chassis 100, and the first end of the second roller 200 passes through the first side wall 110 and extends outside the chassis 100. Transmission gears 600 are provided on the first ends of the first roller 300 and the second roller 200 extending outside the chassis 100, and the transmission gears 600 on adjacent first rollers 300 and second rollers 200 are meshed with each other.

[0055] In this embodiment, the first ends of all the first rollers 300 extend outside the chassis 100 through the first side wall 110, and the first ends of the two outermost second rollers 200 also extend outside the chassis 100 through the first side wall 110, and the first ends of the adjacent first rollers 300 and second rollers 200 are meshed with each other through the transmission gear 600. In the process of leveling the silencer sheet, when the silencer sheet moves between the corresponding first roller 300 and second roller 200, the first roller 300 can drive the second roller 200 to rotate through the transmission gear 600, so that the first roller 300 and the second roller 200 can also play the role of conveying the silencer sheet while leveling the silencer sheet, so as to prevent the silencer sheet from getting stuck in the leveling machine and improve safety.

[0056] Furthermore, since the transmission gear 600 in this embodiment is outside the chassis 100, the staff can directly rotate the transmission gear 600 through a tool outside the chassis 100, and the rotation of the transmission gear 600 can directly drive the rotation of the first roller 300 or the second roller 200 connected thereto, thereby indirectly changing the moving speed of the silencer between the first roller 300 and the second roller 200, so that the staff can adjust the moving speed of the silencer in the leveling machine by operating the transmission gear 600 according to specific needs. At the same time, when an emergency occurs, the first roller 300 and the second roller 200 can also be stopped by operating the transmission gear 600, thereby improving safety. The setting of the transmission gear 600 makes the use of the leveling machine in this embodiment more flexible and convenient.

[0057] In some embodiments, guide rails 700 are provided on both the first side wall 110 and the second side wall 120; guide grooves 540 are provided at positions on the movable plate 500 corresponding to the guide rails 700, and the guide grooves 540 are extended along the moving direction of the second roller 200; in the installed state, the guide rails 700 extend into the guide grooves 540, and the guide rails 700 can reciprocate in the guide grooves 540 along the extending direction of the guide grooves 540. Specifically, corresponding to the guide rails 700 on the first side wall 110 and the second side wall 120, guide grooves 540 are provided on the first connecting plate 510 and the second connecting plate 520 of the movable plate 500, the guide rails 700 on the first side wall 110 correspond to the guide grooves 540 on the first connecting plate 510, and the guide rails 700 on the second side wall 120 correspond to the guide grooves 540 on the second connecting plate 520.

[0058] When the second roller 200 needs to be moved, the movement of the adjustment rod 531 drives the movement of the moving plate 500, so that the first connecting plate 510 and the second connecting plate 520 move synchronously, and the movement of the first connecting plate 510 and the second connecting plate 520 will cause the guide rail 700 to move in the guide groove 540; through the direct clamping of the guide rail 700 and the guide groove 540, the shaking of the first connecting plate 510 and the second connecting plate 520 can be avoided, and the stability of the moving plate 500 moving toward or away from the first roller 300 is improved. It can be known that when the muffler moves between the first roller 300 and the second roller 200, the guide rail 700 can also limit the moving plate 500 by blocking the guide groove 540, thereby avoiding the shaking of the moving plate 500, improving the stability of the second roller 200 squeezing the muffler, and avoiding the distortion of the muffler after leveling.

[0059] It should be noted that since the first connecting plate 510, the second connecting plate 520 and the third connecting plate 530 are fixedly connected to each other, the guide groove 540 can be only provided on the first connecting plate 510 or the second connecting plate 520 to achieve the same effect as mentioned above. However, providing the guide groove 540 on both the first connecting plate 510 and the second connecting plate 520 can further improve the stability of the second roller 200 when moving and leveling the silencer plate.

[0060] In some embodiments, a detection port 132 is provided on the third side wall 130; a detection device is provided at the detection port 132, and the detection device can detect the distance between the first roller 300 and the second roller 200 in real time through the detection port 132, so as to adjust and control the distance between the first roller 300 and the second roller 200.

[0061] In some embodiments, the detection device uses a dial gauge 400. It can be understood that the dial gauge 400 includes a gauge head 410 and a long strip-shaped detection end 420, wherein the long strip-shaped detection end 420 is a retractable structure, and the detection end 420 of the dial gauge 400 in this embodiment is abutted against the third connecting plate 530 through the detection port 132, so that the movement of the third connecting plate 530 can synchronously drive the extension and retraction of the detection end 420, and then the pointer on the gauge head 410 of the dial gauge 400 will rotate accordingly, and the movement distance of the third connecting plate 530 will be fed back.

[0062] Since the third connecting plate 530 and the second roller 200 in this embodiment move synchronously, the moving distance of the third connecting plate 530 is actually the moving distance of the second roller 200. Since the second roller 200 rotates in the circumferential direction, the detection end 420 of the dial indicator 400 can directly abut against the third connecting plate 530 and detect the moving distance of the third connecting plate 530. It has better stability and higher reliability of the detection result.

[0063] In some embodiments, a positioning frame 800 is fixedly installed on the side wall of the third side wall 130 away from the movable plate 500; the dial indicator 400 is fixedly installed on the positioning frame 800 so that the detection end 420 of the dial indicator 400 can stably abut against the third connecting plate 530, thereby improving the reliability of the detection result.

[0064] It can be understood that, since there are multiple second rollers 200 in this embodiment, there are also multiple dial indicators 400, and the number of dial indicators 400 corresponds to the number of second rollers 200; each dial indicator 400 can detect the distance between the corresponding first roller 300 and the second roller 200, so as to correspond the measured distance data between each group of first rollers 300 and second rollers 200. In actual operation, by comparing these data, the distance between each group of first rollers 300 and second rollers 200 can be better kept consistent, so that a constant extrusion pressure can be given to the silencer plate, avoiding the distortion of the silencer plate after leveling.

[0065] In particular, the positioning frame 800 can be used as an installation reference for the dial indicator 400. When installed, the heights of the multiple dial indicators 400 are kept consistent, and the detection end 420 of each dial indicator 400 is kept perpendicular to the positioning frame 800. After the first roller 300 is moved through the detection of the dial indicator 400, the distance between each group of first rollers 300 and second rollers 200 can be kept consistent, thereby improving accuracy.

[0066] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A leveling machine, characterized in that: It includes a first roller, a second roller and a detection device, The first roller and the second roller are maintained parallel and rotatably arranged on the chassis; The second roller is movable relative to the first roller to adjust the distance between the first roller and the second roller; The detection device is arranged at the chassis and can detect the distance between the first roller and the second roller.

2. The leveling machine according to claim 1, characterized in that: The chassis comprises a first side wall and a second side wall parallel to each other, and a third side wall connecting the first side wall and the second side wall; The two ends of the first roller and the second roller are rotatably connected to the first side wall and the second side wall respectively; when the second roller is moved, the second roller moves in a direction perpendicular to the third side wall.

3. The leveling machine according to claim 2, characterized in that: Also includes a moving plate, an adjustment hole and an adjustment rod; The movable plate is disposed between the second roller and the third side wall, and two ends of the movable plate are rotatably connected to two ends of the second roller respectively; The adjustment hole is arranged on the third side wall and penetrates the third side wall; The first end of the adjusting rod is connected to the moving plate, and the second end passes through the adjusting hole; The second end of the adjusting rod can reciprocate along the axial direction of the adjusting hole.

4. The leveling machine according to claim 3, characterized in that: Also includes external threads and adjusting nuts, The external thread is provided on the second end of the adjusting rod; When the second end of the adjusting rod passes through the adjusting hole, the adjusting nut is threadedly connected to the adjusting rod.

5. The leveling machine according to claim 3, characterized in that: The moving plate includes a first connecting plate, a second connecting plate, and a third connecting plate connecting the first connecting plate and the second connecting plate. Two ends of the second roller are rotatably connected to the first connecting plate and the second connecting plate respectively; The first end of the adjusting rod is fixedly connected to the third connecting plate.

6. The leveling machine according to claim 5, characterized in that: A guide rail is provided on the first side wall and / or the second side wall; a guide groove for the guide rail to extend into is provided at a position on the movable plate corresponding to the guide rail, and the guide groove extends along the moving direction of the second roller; During the movement of the second roller, the guide rail can reciprocate in the guide groove.

7. The leveling machine according to claim 3, characterized in that: The third side wall is provided with a detection port, and the detection device is arranged at the detection port; When the second roller moves, the detection device can detect the distance between the first roller and the second roller through the detection port.

8. The leveling machine according to claim 7, characterized in that: The detection device is a dial indicator.

9. The leveling machine according to claim 8, characterized in that: A positioning frame is provided on a side of the third side wall away from the movable plate; The dial gauge is fixedly connected to the positioning frame and the detection end of the dial gauge abuts against the movable plate through the detection port.

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