Roll bending machine

Abstract

The utility model discloses a roll bending machine which comprises a machine frame and U-shaped notches symmetrically formed in the surface of the machine frame, a lower sliding block and an upper sliding block are slidably connected to inner cavities of the U-shaped notches in a sleeved mode, and a lower roll shaft and an upper roll shaft are rotationally connected to inner cavities of the lower sliding block and the upper sliding block through bearings in a sleeved mode respectively. The surfaces of the lower roller shaft and the upper roller shaft are fixedly connected with a lower roller and an upper roller correspondingly, the end opening and the bottom of the U-shaped notch are fixedly connected with a first fixing block and a second fixing block correspondingly, and the surfaces of the first fixing block and the second fixing block are in threaded sleeve connection with an upper adjusting lead screw and a lower adjusting lead screw correspondingly. Adjusting assemblies are symmetrically arranged on the surface of the feeding end of the machine frame. According to the roll bending machine, the U-shaped notch in the rack is long, the adjusting range of the upper sliding block and the lower sliding block is large, the radian range of product forming is wide, various product requirements can be met, the scale ring and the scale can be accurately positioned, the adjusting assembly can adjust the accuracy of a product inlet, operability is improved, and the machining time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of roll bending machines, in particular to a roll bending machine. Background Art

[0002] A roll bender is a mechanical device used to bend metal sheets, pipes, or profiles. It primarily uses one or more pairs of rollers to apply pressure to the material, causing the material to continuously bend and deform under the action of the rollers' rotation, thereby forming a workpiece into the desired shape.

[0003] The roll bending machine is used to bend the straight profile after rolling into a profile with a certain curvature. The curvature is achieved by the height difference between the rear roller and the front roller. Therefore, the upper and lower rollers have a small moving distance, resulting in a small curvature range of the roll-bent product. In addition, after changing the position of the upper and lower rollers, the product needs to be manually adjusted during the feeding process, which makes the operation more troublesome and delays the processing time. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a roll bending machine, which solves the problem that the upper and lower rollers of the existing roll bending machine have a small moving distance, resulting in a small curvature range of the roll-bent product. In addition, after changing the position of the upper and lower rollers, the product needs to be manually adjusted during the feeding process, which makes the operation more troublesome and also delays the processing time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a roll bending machine, comprising a frame, the surface of the frame is symmetrically provided with a U-shaped notch, and the inner cavity of the U-shaped notch is slidably sleeved with a lower slider and an upper slider, the inner cavities of the lower slider and the upper slider are respectively rotatably sleeved with a lower roller shaft and an upper roller shaft through bearings, and the surfaces of the lower roller shaft and the upper roller shaft are respectively fixedly connected with the lower roller and the upper roller, the port and the bottom of the U-shaped notch are respectively fixedly connected with a first fixed block and a second fixed block, and the surfaces of the first fixed block and the second fixed block are respectively threadedly sleeved with an upper adjustment screw and a lower adjustment screw, and the feed end surface of the frame is symmetrically provided with an adjustment component.

[0006] The adjustment assembly includes a sliding plate, and a screw is threadedly sleeved on the surface of the sliding plate, and the upper and lower ends of the screw are rotatably sleeved with a connecting block, a motor is fixedly installed on the top of the connecting block, and the output end of the motor is fixedly connected to the upper end of the screw, a hydraulic cylinder is fixedly installed on the surface of the sliding plate, and the output end of the hydraulic cylinder is fixedly connected to a support plate, and a roller is symmetrically rotatably sleeved on the surface of the support plate;

[0007] A sliding groove for the sliding plate to be slidably sleeved is provided on the surface of the feeding end of the frame, and the sliding plate is slidably sleeved in the inner cavity of the sliding groove.

[0008] Preferably, the connecting block is fixedly connected to the surface of the feeding end of the frame.

[0009] Preferably, one end of the upper adjusting screw rod and the lower adjusting screw rod are both provided with a scale ring.

[0010] Preferably, scales are symmetrically provided on the surface of the frame and on the side surfaces close to the U-shaped notch.

[0011] Preferably, reinforcing connecting rods are symmetrically fixedly connected between the inner cavities of the racks, and rack position adjustment screw rods are fixedly installed on the sides of the racks.

[0012] Preferably, oil nozzles are provided on the surfaces of the upper slider and the lower slider, and the oil nozzles pass through the inner cavities of the lower slider and the upper slider and are communicated with the internal bearings.

[0013] The utility model provides a roll bending machine. Compared with the existing technology, it has the following beneficial effects:

[0014] 1. This roll bending machine drives the lower slider and the upper slider to extend and retract in the U-shaped notch by rotating the upper and lower adjusting screw rods, thereby changing the height difference between the upper and lower rollers. Since the U-shaped notch is directly set on the entire frame, the length is relatively long, and the adjustment range of the lower and upper sliders is large. Therefore, the curvature range of the product molding is wide, which can meet the needs of various products. In addition, when the upper and lower adjusting screw rods rotate to drive the lower and upper sliders to adjust, by setting the scale ring and scale, the adjustment size value can be accurately known, and accurate positioning can be achieved.

[0015] 2. The roll bending machine uses a motor to drive the screw to rotate on the connecting block, so that the sliding plate and the upper and lower rollers are aligned with each other after adjustment. In addition, the hydraulic cylinder drives the support plate to extend and retract, so that the spacing between the support plates is adapted to the product to be bent, achieving the effect of precise positioning of the product entry. No manual adjustment is required, which reduces operations and increases processing time. In addition, the multiple rollers set up also facilitate the sliding entry of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structural adjustment component of the utility model;

[0019] Figure 4 This is a schematic diagram of the molding of the structural product of this utility model.

[0020] In the figure: 1. scale ring; 2. scale; 3. upper adjustment screw; 4. upper roller; 5. oil nozzle; 6. lower roller; 7. frame; 8. lower slider; 9. reinforcement connecting rod; 10. lower adjustment screw; 11. lower roller shaft; 12. upper slider; 13. upper roller shaft; 14. frame position adjustment screw; 15. first fixed block; 16. second fixed block; 17. adjustment assembly; 171. sliding plate; 172. screw; 173. connecting block; 174. motor; 175. hydraulic cylinder; 176. support plate; 177. roller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-2 The present invention provides a technical solution: a roll bending machine, comprising a frame 7, a U-shaped notch is symmetrically provided on the surface of the frame 7, and the lower slider 8 and the upper slider 12 are slidably sleeved in the inner cavity of the U-shaped notch, the lower slider 8 and the upper slider 12 are respectively rotatably sleeved in the inner cavities of the lower slider 8 and the upper slider 12 through bearings, and the surfaces of the lower roller shaft 11 and the upper roller shaft 13 are respectively fixedly connected to the lower roller 6 and the upper roller 4, the port and the bottom of the U-shaped notch are respectively fixedly connected to the first fixing block 15 and the second fixing block 16, and the surfaces of the first fixing block 15 and the second fixing block 16 are respectively threadedly sleeved with the upper adjustment screw rod 3 and the lower adjustment screw rod 10, the inner cavities of the frame 7 are symmetrically fixedly connected, wherein the strengthening connecting rod 9 is used to strengthen the overall strength of the frame 7, and the side of the frame 7 is fixedly installed with a frame position adjustment screw rod 14, wherein the frame 7 as a whole is arranged on the bracket to be installed, so the position of the frame 7 can be adjusted by rotating the frame position adjustment screw rod 14.

[0023] A scale ring 1 is provided at one end of the upper adjusting screw rod 3 and the lower adjusting screw rod 10, and a scale 2 is symmetrically provided on the surface of the frame 7 and on the side near the U-shaped groove. An adjustment component 17 is symmetrically provided on the surface of the feed end of the frame 7. The scale ring 1 is used to know the rotation value of the upper adjusting screw rod 3 and the lower adjusting screw rod 10, and the scale 2 is used to know the adjustment value of the lower slider 8 and the upper slider 12, so as to accurately position.

[0024] An oil nozzle 5 is provided on the surface of the upper slider 12 and the lower slider 8, and the oil nozzle 5 passes through the inner cavity of the lower slider 8 and the upper slider 12 and is connected with the internal bearing. The provided oil nozzle 5 can be used for oil injection, so that the oil flows into the inner cavity of the lower slider 8 and the upper slider 12 and contacts the bearings, thereby lubricating the bearings and the lower roller shaft 11 and the upper roller shaft 13.

[0025] See also Figure 1 and 3 The adjusting assembly 17 includes a sliding plate 171, and a screw rod 172 is threadedly sleeved on the surface of the sliding plate 171, and the upper and lower ends of the screw rod 172 are rotatably sleeved with a connecting block 173, and the connecting block 173 is fixedly connected to the surface of the feed end of the frame 7 for fixed connection. A motor 174 is fixedly installed on the top of the upper connecting block 173, and the output end of the motor 174 is fixedly connected to the upper end of the screw rod 172. A hydraulic cylinder 175 is fixedly installed on the surface of the sliding plate 171, and a diverter and collector valve is arranged between the oil pipelines of the two hydraulic cylinders 175. The diverter and collector valve is used for more precise synchronous control to ensure that the telescopic movements of the two cylinders are more synchronized.

[0026] The output end of the hydraulic cylinder 175 is fixedly connected to a support plate 176, and a roller 177 is symmetrically rotatably sleeved on the surface of the support plate 176. A slide groove is provided on the surface of the feed end of the frame 7 for the sliding plate 171 to slide in, and the sliding plate 171 is slidably sleeved in the inner cavity of the slide groove, wherein the adjustment component 17 is a left and right group, a total of two groups, wherein the motors 174 in the two groups of adjustment components 17 can realize forward and reverse rotation, and the frequency converter is used for opening and closing control. The frequency converter can accurately control the start, stop and speed of the motor 174, and has a buffering function, which can effectively avoid the inertial impact when the motor 174 starts, so that the required rotation of the two motors 174 can be controlled to be the same, thereby avoiding the problem of position deviation of the support plate 176 due to the different rotation speeds of the left and right screw rods 172.

[0027] During operation, when the curvature range needs to be changed, the upper adjusting screw rod 3 and the lower adjusting screw rod 10 corresponding to the positions on both sides are directly rotated by the tool, so that the upper adjusting screw rod 3 and the lower adjusting screw rod 10 are respectively threaded on the first fixed block 15 and the second fixed block 16, thereby driving the lower slider 8 and the upper slider 12 to extend and retract up and down in the U-shaped notch, thereby changing the height difference between the upper roller 4 and the lower roller 6. Since the U-shaped notch is directly provided on the entire frame 7, the length is relatively long, and the adjustment range of the lower slider 8 and the upper slider 12 is large. Therefore, the curvature range of the product molding is wide, which can meet the needs of various products. In addition, when the upper adjusting screw rod 3 and the lower adjusting screw rod 10 rotate to drive the lower slider 8 and the upper slider 12 to adjust, by setting the scale ring 1 and the scale 2, the value of the adjustment size can be accurately known, and accurate positioning can be achieved.

[0028] In addition, after the upper roller 4 and the lower roller 6 are adjusted in height, the position of the feed end thereof also changes, so the motor 174 is started, so that the motor 174 drives the screw rod 172 to rotate on the connecting block 173, thereby driving the sliding plate 171 to extend and retract in the slide groove provided on the frame 7, so that the sliding plate 171 and the adjusted upper roller 4 and lower roller 6 are flush with each other. In addition, the hydraulic cylinder 175 is started, so that the telescopic end of the hydraulic cylinder 175 drives the support plate 176 to extend and retract, so that the spacing between the support plates 176 is adapted to the product to be bent, so as to achieve the effect of precise positioning of the product, without the need for manual adjustment, reducing operation and improving processing time, please refer to Figure 4 In addition, the multiple rollers 177 are also provided to facilitate the sliding entry of the product.

[0029] It should be noted that after the product enters the feed end of the frame 7, it is squeezed in. Therefore, as it is pushed in, the product will come into contact with the upper roller 4 and the lower roller 6, and drive the upper roller 4 and the lower roller 6 to rotate, thereby bending the arc through the height difference between the upper roller 4 and the lower roller 6. In addition, after the product comes out from the discharge end, the rear is pulled out by a clamping device.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A roll bending machine comprising a frame (7), characterized in that: The surface of the frame (7) is symmetrically provided with a U-shaped notch, and the inner cavity of the U-shaped notch is slidably sleeved with a lower slider (8) and an upper slider (12), the inner cavities of the lower slider (8) and the upper slider (12) are respectively rotatably sleeved with a lower roller shaft (11) and an upper roller shaft (13) through bearings, and the surfaces of the lower roller shaft (11) and the upper roller shaft (13) are respectively fixedly connected with a lower roller (6) and an upper roller (4), the port and the bottom of the U-shaped notch are respectively fixedly connected with a first fixed block (15) and a second fixed block (16), and the surfaces of the first fixed block (15) and the second fixed block (16) are respectively threadedly sleeved with an upper adjustment screw rod (3) and a lower adjustment screw rod (10), and the feed end surface of the frame (7) is symmetrically provided with an adjustment component (17); The adjusting assembly (17) comprises a sliding plate (171), and a screw rod (172) is threadedly sleeved on the surface of the sliding plate (171), and the upper and lower ends of the screw rod (172) are rotatably sleeved with a connecting block (173), and a motor (174) is fixedly installed on the top of the connecting block (173), and the output end of the motor (174) is fixedly connected to the upper end of the screw rod (172), and a hydraulic cylinder (175) is fixedly installed on the surface of the sliding plate (171), and the output end of the hydraulic cylinder (175) is fixedly connected to a support plate (176), and a roller (177) is symmetrically rotatably sleeved on the surface of the support plate (176); A sliding groove for the sliding plate (171) to be slidably sleeved is provided on the surface of the feeding end of the frame (7), and the sliding plate (171) is slidably sleeved in the inner cavity of the sliding groove.

2. The roll bending machine according to claim 1, characterized in that: The connecting block (173) is fixedly connected to the surface of the feed end of the frame (7).

3. The roll bending machine according to claim 1, characterized in that: One end of each of the upper adjusting screw rod (3) and the lower adjusting screw rod (10) is provided with a scale ring (1).

4. The roll bending machine according to claim 1, characterized in that: A scale (2) is symmetrically provided on the surface of the frame (7) and on the side surface close to the U-shaped notch.

5. The roll bending machine according to claim 4, characterized in that: Reinforced connecting rods (9) are symmetrically fixedly connected between the inner cavities of the frame (7), and a frame position adjustment screw rod (14) is fixedly installed on the side of the frame (7).

6. The roll bending machine according to claim 1, characterized in that: The surfaces of the upper slider (12) and the lower slider (8) are provided with oil nozzles (5), and the oil nozzles (5) pass through the inner cavities of the lower slider (8) and the upper slider (12) and are communicated with the bearings inside.

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