Compression roller device of hydraulic straightening machine

Abstract

The utility model relates to the technical field of hydraulic straightening machines, in particular to a compression roller device of a hydraulic straightening machine, which comprises a straightening machine base, a plurality of compression roller components are mounted at the top of the straightening machine base, a hydraulic cylinder is mounted on one side of each compression roller component, and a turnover mechanism for turnover is arranged on each compression roller component. A supporting plate is slidably arranged at the top of the pressing roller assembly, and hydraulic supports are fixedly arranged on the left side and the right side of the supporting plate. The turnover mechanism comprises a turnover air cylinder installed on the top of the straightening machine base, transmission racks are fixedly arranged at the telescopic ends of the turnover air cylinders, transmission gears are connected to one sides of the transmission racks in a meshed mode, a connecting rod is fixedly arranged between the two sets of transmission racks, and a turnover shaft is fixedly arranged in the middle of each transmission gear. According to the utility model, the turnover mechanism simultaneously drives a plurality of groups of transmission gears to synchronously rotate, so that the compression roller components are synchronously adjusted, and the adjusting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic straightening machine technology, and in particular to a pressure roller device for a hydraulic straightening machine. Background Technology

[0002] The pressure roller device of a hydraulic straightening machine drives the rollers to straighten the workpiece through the extension and retraction of hydraulic cylinders. During the straightening process, the hydraulic cylinders push the mounting frame and the loading plate on the U-shaped plate, making the rollers come into close contact with the workpiece. As the rollers rotate, they apply pressure to the workpiece, causing it to undergo elasto-plastic deformation. When the straightening force is removed, the workpiece springs back, reducing some of its original curvature; the remaining curvature becomes the original curvature for the next straightening roller. Through the action of multiple straightening rollers, the remaining curvature gradually decreases, eventually making the workpiece nearly straight.

[0003] The existing straightening machine requires changing the pressure rollers of different sizes according to the two specifications of H-beams during the straightening process, which is time-consuming due to the frequent disassembly and assembly of the pressure rollers.

[0004] A publicly available technical solution, CN219378502U, discloses a pressure roller device for a hydraulic straightening machine, including a frame and a conveyor table. An adjusting seat is slidably connected inside the frame. Two mounting plates are fixedly connected to each other on their adjacent sides. A central shaft is rotatably connected between the upper and lower mounting plates. An adjusting plate is fixedly connected to the central shaft, positioned between the upper and lower mounting plates. A second positioning shaft and a first positioning shaft are respectively inserted into both ends of the adjusting plate, and both are fixedly connected to the adjusting plate. Second pressure rollers are rotatably connected to the upper and lower ends of the second positioning shaft, respectively, positioned above and below the adjusting plate. This pressure roller device for a hydraulic straightening machine has the advantage of eliminating the need to replace the pressure rollers, thus saving time.

[0005] In actual implementation, the above technical solution involves rotating the central shaft on the mounting plate, setting an adjustment plate on the central shaft, and rotating the central shaft to drive the adjustment plate to rotate. Rotating the adjustment plate allows the first and second pressure rollers to be switched back and forth. However, hydraulic straightening machines are generally equipped with multiple sets of pressure rollers. If each set of pressure rollers needs to be manually adjusted in this way when switching, the operation is quite cumbersome. Summary of the Invention

[0006] The purpose of this utility model is to provide a pressure roller device for a hydraulic straightening machine, which can simultaneously drive multiple sets of transmission gears to rotate synchronously through a flipping mechanism, so that the pressure roller assembly can be adjusted synchronously, thereby improving the adjustment efficiency and solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pressure roller device for a hydraulic straightening machine, comprising a straightening machine base, a plurality of pressure roller assemblies mounted on the top of the straightening machine base, a hydraulic cylinder mounted on one side of each pressure roller assembly, a flipping mechanism for flipping the pressure roller assembly, a support plate slidably mounted on the top of the pressure roller assembly, and hydraulic supports fixedly mounted on the left and right sides of the support plate.

[0008] The flipping mechanism includes a flipping cylinder installed on the top of the base of the straightening machine. A transmission rack is fixedly provided on the telescopic end of the flipping cylinder, and a transmission gear is meshed on one side of the transmission rack. A connecting rod is fixedly provided between the two sets of transmission racks, and a flipping shaft is fixedly provided in the middle of the transmission gear.

[0009] Preferably, the pressure roller assembly includes a push plate mounted on top of the flipping shaft, with a first pressure roller mounted on one side of the push plate and a second pressure roller mounted on the other side of the push plate.

[0010] Preferably, a push rod is mounted on the middle of the push plate via a bearing, and a push slider is fixedly provided on the top of the push rod. The telescopic end of a hydraulic cylinder is fixedly connected to one side of the push slider.

[0011] Preferably, a groove is provided at the connection between the push slider and the support plate, and the push rod slides on the support plate by pushing the slider through the groove.

[0012] Preferably, the flipping mechanism further includes a movable bracket installed at the bottom of the flipping shaft, and a bearing is installed at the connection between the movable bracket and the flipping shaft. A guide groove is also provided on the top of the movable bracket.

[0013] Preferably, the transmission rack is slidably connected to the guide groove, and the flipping shaft is vertically fixed to the push plate.

[0014] Preferably, the bottom of the movable bracket is provided with a limiting slider, and a limiting groove is provided at the connection between the limiting slider and the base of the correction machine.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the set flipping mechanism, the telescopic end of the flipping cylinder can drive the transmission rack to move. The transmission racks are connected by connecting rods, so that multiple sets of transmission racks can be driven to move simultaneously under the action of the connecting rods, thereby driving multiple sets of transmission gears to rotate synchronously and improving adjustment efficiency.

[0017] 2. The positions of the second and first pressure rollers can be interchanged through the set pressure roller assembly, which makes it convenient to adjust the pressure roller assembly according to the specifications of the H-beam. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the pressure roller assembly of this utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged view of A in the middle;

[0022] Figure 4 This is a schematic diagram of the transmission rack of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Straightening machine base; 2. Hydraulic support; 3. Tilting mechanism; 301. Moving support; 302. Tilting shaft; 303. Tilting cylinder; 304. Limiting slider; 305. Limiting groove; 306. Guide groove; 307. Transmission rack; 308. Transmission gear; 309. Connecting rod; 4. Pressure roller assembly; 401. First pressure roller; 402. Push plate; 403. Push rod; 404. Pushing slider; 405. Second pressure roller; 5. Hydraulic cylinder; 6. Support plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A pressure roller device for a hydraulic straightening machine includes a straightening machine base 1, a number of pressure roller assemblies 4 are installed on the top of the straightening machine base 1, a hydraulic cylinder 5 is installed on one side of each pressure roller assembly 4, a flipping mechanism 3 for flipping is provided on the pressure roller assembly 4, a support plate 6 is slidably provided on the top of the pressure roller assembly 4, and hydraulic supports 2 are fixedly provided on the left and right sides of the support plate 6.

[0028] The flipping mechanism 3 includes a flipping cylinder 303 that is slidably mounted on the top of the base 1 of the straightening machine. A transmission rack 307 is fixedly provided at the telescopic end of the flipping cylinder 303, and a transmission gear 308 is meshed with one side of the transmission rack 307. A connecting rod 309 is fixedly provided between the two sets of transmission racks 307, and a flipping shaft 302 is fixedly provided in the middle of the transmission gear 308.

[0029] By adopting the above technical solution, after the tilting cylinder 303 is started, the telescopic end can drive the transmission rack 307 to move. While the transmission rack 307 moves, it can synchronously drive the transmission gear 308 to rotate. When the transmission gear 308 rotates, it can drive the tilting shaft 302 to rotate, thereby driving the pressure roller assembly 4 to rotate and tilt the pressure roller assembly 4. This makes it convenient to adjust the pressure roller assembly 4 according to the specifications of the H-beam. The transmission racks 307 are connected by connecting rods 309, so that multiple sets of transmission racks 307 can move simultaneously under the action of the connecting rods 309, thereby driving multiple sets of transmission gears 308 to rotate synchronously, improving the adjustment efficiency.

[0030] Specifically, such as Figure 2 and Figure 3 As shown, the pressure roller assembly 4 includes a push plate 402 mounted on the top of the flipping shaft 302. A first pressure roller 401 is mounted on one side of the push plate 402, and a second pressure roller 405 is mounted on the other side of the push plate 402. A push rod 403 is mounted in the middle of the push plate 402 via a bearing, and a push slider 404 is fixedly mounted on the top of the push rod 403. The telescopic end of the hydraulic cylinder 5 is fixedly connected to one side of the push slider 404. A groove is provided at the connection between the push slider 404 and the support plate 6. The push rod 403 slides on the support plate 6 through the groove and the push slider 404.

[0031] The flipping mechanism 3 also includes a movable bracket 301 installed at the bottom of the flipping shaft 302, and a bearing is installed at the connection between the movable bracket 301 and the flipping shaft 302. A guide groove 306 is also provided at the top of the movable bracket 301. The transmission rack 307 is slidably connected to the guide groove 306. The flipping shaft 302 is vertically fixed to the push plate 402. A limit slider 304 is provided at the bottom of the movable bracket 301, and a limit groove 305 is provided at the connection between the limit slider 304 and the base 1 of the straightening machine.

[0032] By adopting the above technical solution, when straightening H-beams, the H-beams are placed on top of the straightening machine base 1 and between the corresponding first pressure rollers 401. The hydraulic cylinder 5 is activated, and the hydraulic cylinder 5 pushes the push slider 404 to slide under the support plate 6. This drives the push plate 402 to slide through the push rod 403. The push plate 402 then drives the moving bracket 301 to move synchronously through the flip shaft 302. The moving bracket 301 can slide inside the limiting slide groove 305 through the limiting slider 304, which facilitates the movement of the moving bracket 301 in conjunction with the pressure roller assembly 4. The guide groove 306 can guide the transmission rack 307.

[0033] Working Principle: When straightening H-beams, the H-beams are placed on top of the straightening machine base 1. The pressure roller assembly 4 is adjusted according to the specifications of the H-beams. The tilting cylinder 303 is activated. The telescopic end of the tilting cylinder 303 drives the transmission rack 307 to move inside the guide groove 306. Simultaneously, the transmission rack 307 moves, driving the transmission gear 308 to rotate. The rotation of the transmission gear 308 drives the tilting shaft 302 to rotate, thereby rotating the pressure roller assembly 4 and tilting it. This swaps the positions of the first pressure roller 401 and the second pressure roller 405. Meanwhile, the transmission rack 307... The components are connected by a connecting rod 309, which drives multiple sets of transmission racks 307 to move simultaneously, thereby driving multiple sets of transmission gears 308 to rotate synchronously. The hydraulic cylinder 5 pushes the sliding block 404 to slide below the support plate 6, thereby driving the pushing plate 402 to slide via the pushing rod 403. The pushing plate 402 then drives the moving bracket 301 to move synchronously via the flip shaft 302. The moving bracket 301 can slide inside the limiting groove 305 via the limiting slider 304, facilitating the movement of the moving bracket 301 in conjunction with the pressure roller assembly 4. The H-beam passes between the pressure rollers to straighten the H-beam.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. Hydraulic press roll device of a hydraulic straightening press, comprising a straightening press base (1), characterized in that: The top of the correcting machine base (1) is provided with a plurality of groups of compression roller assemblies (4), one side of each group of compression roller assemblies (4) is provided with a hydraulic cylinder (5), the compression roller assembly (4) is provided with a turnover mechanism (3) for turnover, the top of the compression roller assembly (4) is slidably provided with a supporting plate (6), and the left and right sides of the supporting plate (6) are fixedly provided with hydraulic supports (2). The turnover mechanism (3) comprises a turnover air cylinder (303) mounted on the top of the correcting machine base (1), the telescopic end of the turnover air cylinder (303) is fixedly provided with a transmission rack (307), one side of the transmission rack (307) is engagedly connected with a transmission gear (308), two groups of transmission racks (307) are fixedly provided with a connecting rod (309) between them, and the middle of the transmission gear (308) is fixedly provided with a turnover shaft (302).

2. A press roll device for a hydraulic straightening machine according to claim 1, characterized in that: The compression roller assembly (4) comprises a pushing plate (402) mounted on the top of the turnover shaft (302), one side of the pushing plate (402) is provided with a first compression roller (401), and the other side of the pushing plate (402) is provided with a second compression roller (405).

3. A press roll device for a hydraulic straightening machine according to claim 2, characterized in that: The middle of the pushing plate (402) is provided with a pushing rod (403) through a bearing, and the top of the pushing rod (403) is fixedly provided with a pushing sliding block (404), one side of the pushing sliding block (404) is fixedly connected with the telescopic end of the hydraulic cylinder (5).

4. A press roll device for a hydraulic straightening machine according to claim 3, characterized in that: The connecting part of the pushing sliding block (404) and the supporting plate (6) is provided with a sliding groove, and the pushing rod (403) realizes sliding on the supporting plate (6) through the sliding groove and the pushing sliding block (404).

5. A press roll device for a hydraulic straightening machine according to claim 4, characterized in that: The turnover mechanism (3) further comprises a moving support (301) mounted on the bottom of the turnover shaft (302), and a bearing is mounted at the connecting part of the moving support (301) and the turnover shaft (302), and the top of the moving support (301) is further provided with a guide groove (306).

6. A press roll arrangement for a hydraulic straightening press according to claim 5, characterized in that: The transmission rack (307) is slidably connected with the guide groove (306), and the turnover shaft (302) is fixedly connected with the pushing plate (402) perpendicularly.

7. A press roll arrangement for a hydraulic straightening press according to claim 6, characterized in that: The bottom of the moving support (301) is provided with a limiting sliding block (304), and a limiting sliding groove (305) is formed at the connecting part of the limiting sliding block (304) and the correcting machine base (1).

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