A high-precision opening adjustment mechanism for a straightening machine

Abstract

This utility model relates to a high-precision opening degree adjustment mechanism for a straightening machine, belonging to the field of metallurgical equipment technology. It includes a lower mounting frame with multiple parallel-arranged lower leveling rollers inside. Above the lower mounting frame is an upper mounting frame with multiple sets of parallel-arranged sliding block groups inside. Upper leveling rollers are mounted on the sliding block groups, and the upper and lower leveling rollers are arranged parallel to each other but staggered. Driving any sliding block group to move up and down causes the corresponding upper leveling roller to move closer to or away from the lower leveling roller. One side of the upper mounting frame is hinged to the lower mounting frame, and the other side of the upper mounting frame has a driving device. One end of the driving device is hinged to the upper mounting frame, and the other end is hinged to the lower mounting frame. The driving device drives the upper mounting frame to swing around the hinge point, causing the sliding block groups and upper leveling rollers to swing. This application offers convenient operation, improves the adjustment accuracy of the straightening machine's opening degree, and ensures that the rolled product meets the straightening requirements.

Description

Technical Field

[0001] This utility model relates to a high-precision opening degree adjustment mechanism for a straightening machine, belonging to the field of metallurgical equipment technology. Background Technology

[0002] During the heating, rolling, heat treatment, and transportation processes, rolled products often develop shape defects due to various factors. To eliminate these defects, the rolled products need to be straightened on a straightening machine. Bending straightening is widely used in parallel roll straightening machines, mainly to achieve the purpose of straightening by inducing plastic bending deformation in the rolled products.

[0003] The opening adjustment mechanism of the upper and lower leveling rolls is an important component of the straightening machine. The existing adjustment mechanism uses a hydraulic cylinder to drive the upper leveling roll group to lift and lower as a whole, adjusting the opening between the upper and lower leveling roll groups. However, the overall lifting and adjustment accuracy is low, resulting in unsatisfactory straightening effect for the rolled workpiece. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a high-precision opening degree adjustment mechanism for a straightening machine, which is easy to operate, improves the adjustment accuracy of the opening degree of the straightening machine, and enables the rolled product to meet the straightening requirements.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a high-precision opening degree adjustment mechanism for a straightening machine, including a lower mounting frame, in which multiple parallel lower leveling rollers are arranged; an upper mounting frame is provided above the lower mounting frame, in which multiple sets of parallel sliding block groups are provided, and upper leveling rollers are provided on the sliding block groups. The upper leveling rollers and lower leveling rollers are arranged parallel to each other and staggered. Driving any of the sliding block groups to perform a lifting and lowering movement causes the corresponding upper leveling roller to move closer to or away from the lower leveling roller, thereby adjusting the opening degree of the upper and lower leveling rollers; one side of the upper mounting frame is hinged to the lower mounting frame, and the other side of the upper mounting frame is provided with a driving device. One end of the driving device is hinged to the upper mounting frame, and the other end of the driving device is hinged to the lower mounting frame. The driving device drives the upper mounting frame to swing around the hinge point, causing the sliding block groups and the upper leveling rollers to swing.

[0006] The upper mounting frame is equipped with multiple vertically arranged screw lifters, each screw lifter corresponding to a sliding block assembly, and the output end of the screw lifter is fixedly connected to the sliding block assembly.

[0007] Each of the sliding block groups includes two oppositely arranged sliding blocks, and the upper leveling roller is disposed between the two sliding blocks.

[0008] Guide units are provided between the first sliding block and the upper mounting frame, between adjacent sliding blocks, and between the last sliding block and the upper mounting frame. Each guide unit includes a guide rail and a guide block. Guide blocks are provided on one inner wall of the upper mounting frame and one side of the slider, and guide rails are provided on the other inner wall of the upper mounting frame and the other side of the slider. The guide rail of the first sliding block is engaged with the guide block of the upper mounting frame, the guide block of the first sliding block is engaged with the guide rail of the adjacent sliding block, the guide rail of the last sliding block is engaged with the guide block of the adjacent sliding block, and the guide block on the last sliding block is hinged to the guide rail on the upper mounting frame.

[0009] Compared with the prior art, the advantages of this utility model are as follows: A high-precision opening degree adjustment mechanism for a straightening machine, through three sets of parallel spiral lifters, drives three sets of sliding blocks to lift and lower independently, realizing the independent lifting and lowering of the upper leveling roller, improving the adjustment accuracy of the opening degree of the straightening machine, and ensuring that the rolled workpiece meets the straightening requirements. The upper mounting frame is hinged to the lower mounting base, and the upper mounting frame is driven by a hydraulic cylinder to swing around the pin shaft, facilitating plate passage and avoiding repeated adjustments. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a high-precision opening adjustment mechanism for a straightening machine according to an embodiment of the present invention; In the diagram, 1 is the screw jack, 2 is the upper mounting bracket, 3 is the connecting seat, 4 is the sliding block, 5 is the hydraulic cylinder, 6 is the hydraulic cylinder seat, 7 is the lower mounting bracket, 8 is the lower leveling roller, 9 is the pin, and 10 is the upper leveling roller. Detailed Implementation

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0012] like Figure 1 As shown, a high-precision opening adjustment mechanism for a straightening machine in this embodiment includes a lower mounting frame 7. Four parallel lower leveling rollers 8 are arranged within the lower mounting frame 7, with both ends of each roller fixed to the frame via bearing seats. An upper mounting frame 2 is located above the lower mounting frame 7. The upper mounting frame 2 contains three sets of parallel sliding block groups. Each sliding block group includes two opposing sliding blocks 4, with an upper leveling roller 10 positioned between each pair of sliding blocks 4, ensuring that the upper and lower leveling rollers are arranged parallel and staggered. Three vertically arranged screw lifters 1 are located at the top of the upper mounting frame 2, with their output ends fixedly connected to the corresponding sliding block groups. The screw lifters control the corresponding sliding block groups to move up and down, causing the upper leveling rollers to move closer to or further away from the lower leveling rollers, thereby adjusting the opening of the upper and lower leveling rollers. The screw lifters drive the individual upper leveling rollers to move up and down, improving the adjustment accuracy of the straightening machine's opening.

[0013] One side of the upper mounting frame is hinged to the lower mounting frame via a pin 9. The other side of the upper mounting frame is equipped with a hydraulic cylinder 5, and the lower mounting frame contains a hydraulic cylinder seat 6. The cylinder body of the hydraulic cylinder 5 is hinged to the hydraulic cylinder seat 6. A connecting seat 3 is located inside the upper mounting frame 2, and the hydraulic cylinder extension rod is hinged to the connecting seat. When the hydraulic cylinder extension rod extends or retracts, it drives the upper mounting frame to swing around the pin, causing the sliding block assembly and the three upper leveling rollers to swing, facilitating plate passage and avoiding repeated adjustments.

[0014] Guide units are provided between the first sliding block and the upper mounting frame, between adjacent sliding blocks, and between the last sliding block and the upper mounting frame, serving a guiding function during the lifting and lowering of the sliding blocks. Each guide unit includes a guide rail and a guide block. Guide blocks are provided on one inner wall of the upper mounting frame and one side of the slider, while guide rails are provided on the other inner wall of the upper mounting frame and the other side of the slider. The guide rail of the first sliding block engages with the guide block of the upper mounting frame; the guide block of the first sliding block engages with the guide rail of the adjacent sliding block; the guide rail of the last sliding block engages with the guide block of the adjacent sliding block; and the guide block on the last sliding block is hinged to the guide rail on the upper mounting frame.

[0015] Three sets of parallel spiral lifters drive three sets of sliding blocks to lift and lower independently, enabling the upper leveling roller to lift and lower independently. This improves the adjustment accuracy of the straightener's opening degree, ensuring that the rolled piece meets the straightening requirements. The upper mounting frame is hinged to the lower mounting base, and a hydraulic cylinder drives the upper mounting frame to swing around a pin shaft, facilitating plate passage and avoiding repeated adjustments.

[0016] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A high-precision opening adjustment mechanism for a straightening machine, characterized in that: The system includes a lower mounting frame containing multiple parallel lower leveling rollers; an upper mounting frame is located above the lower mounting frame, containing multiple sets of parallel sliding block groups, each with an upper leveling roller. The upper and lower leveling rollers are arranged parallel to each other but staggered. Driving any of the sliding block groups to move up and down causes the corresponding upper leveling roller to move closer to or further away from the lower leveling roller, thereby adjusting the opening degree of the upper and lower leveling rollers. One side of the upper mounting frame is hinged to the lower mounting frame, and the other side of the upper mounting frame is equipped with a driving device. One end of the driving device is hinged to the upper mounting frame, and the other end is hinged to the lower mounting frame. The driving device drives the upper mounting frame to swing around the hinge point, causing the sliding block groups and the upper leveling rollers to swing.

2. The high-precision opening adjustment mechanism for a straightening machine according to claim 1, characterized in that: The upper mounting frame is equipped with multiple vertically arranged screw lifters, each screw lifter corresponding to a sliding block assembly, and the output end of the screw lifter is fixedly connected to the sliding block assembly.

3. The high-precision opening adjustment mechanism for a straightening machine according to claim 1, characterized in that: Each of the sliding block groups includes two oppositely arranged sliding blocks, and the upper leveling roller is disposed between the two sliding blocks.

4. The high-precision opening adjustment mechanism for a straightening machine according to claim 3, characterized in that: Guide units are provided between the first sliding block and the upper mounting frame, between adjacent sliding blocks, and between the last sliding block and the upper mounting frame. Each guide unit includes a guide rail and a guide block. Guide blocks are provided on one inner wall of the upper mounting frame and one side of the slider, and guide rails are provided on the other inner wall of the upper mounting frame and the other side of the slider. The guide rail of the first sliding block is engaged with the guide block of the upper mounting frame, the guide block of the first sliding block is engaged with the guide rail of the adjacent sliding block, the guide rail of the last sliding block is engaged with the guide block of the adjacent sliding block, and the guide block on the last sliding block is hinged to the guide rail on the upper mounting frame.

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