Multi-point pressure adjusting mechanism of square and rectangular tube straightening machine

Abstract

The utility model discloses a multi-point pressure regulating mechanism of a square and rectangular tube straightening machine, which comprises a bottom plate, a support plate is fixedly mounted at the top of the bottom plate, guide rollers for conveying square and rectangular tubes are respectively and rotatably connected to two ends of the lower part of the front side of the support plate, and a square hole is formed above the middle part of the front side of the support plate; a vertical straightening assembly used for being matched with the guide rollers to straighten the square tubes in the vertical direction is connected to an inner cavity of the square hole in an up-down sliding mode, and transverse straightening assemblies used for straightening the square tubes in the transverse direction are arranged on the positions, located on the two sides of the straightening assembly, of the rear side of the supporting plate. Through the arrangement of the vertical straightening assembly and the transverse straightening assembly, the square tubes are straightened in the vertical direction and the transverse direction at the same time, compared with independent vertical or transverse straightening, straightening work in multiple directions can be completed in one-time operation, the straightening procedures are reduced, the straightening time is shortened, the production efficiency is improved, and the production cost is reduced. And the device is especially suitable for batch production of square and rectangular pipes.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-point pressure adjustment mechanism for square and rectangular tube straightening machines, specifically a multi-point pressure adjustment mechanism for square and rectangular tube straightening machines. Background Technology

[0002] Square and rectangular tubes are a type of steel pipe with and without equal or unequal side lengths. They are made from steel strips through a process of rolling. Generally, the steel strips are unpacked, flattened, rolled, and welded to form a round tube, which is then rolled into a square tube and cut to the required length.

[0003] Currently, Chinese patent CN217858128U discloses a straightening device for the production and processing of rectangular tubes. The technical solution includes a worktable, a slider, and a tube body. A support base is welded to the lower surface of the worktable. A vertical plate is bolted to one side of the upper surface of the worktable. A square cavity is formed at the upper end of the vertical plate. Fixed rollers are symmetrically and rotatably mounted at the lower end of the vertical plate. The slider is slidably mounted inside the square cavity. A rotating rod is rotatably mounted on the upper surface of the slider, and the rotating rod is threadedly engaged with the vertical plate. A movable roller is rotatably mounted on the slider. Positioning blocks are symmetrically welded to both sides of the slider, and the positioning blocks slide in contact with the interior of the square cavity. The tube body is in transmission contact with the two fixed rollers and the movable roller respectively. This utility model facilitates the straightening of tubes through the cooperation between the structures, and allows for easy modification of the straightening structure according to the specific dimensions of the tubes, meeting the needs of users.

[0004] The above-mentioned straightening equipment for the production and processing of square and rectangular tubes still has some problems in use. The movable roller and the two fixed rollers form a three-point contact, which can only straighten the square and rectangular tube vertically. The straightening effect is limited to a single plane. When the square and rectangular tube may be bent laterally, it is very likely that it cannot be straightened in one go. Therefore, the ability to correct multi-dimensional bending or local deformation is relatively insufficient. Utility Model Content

[0005] The purpose of this invention is to provide a multi-point pressure adjustment mechanism for a square and rectangular tube straightening machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-point pressure adjustment mechanism for a rectangular tube straightening machine includes a base plate, a support plate fixedly mounted on the top of the base plate, guide rollers for conveying rectangular tubes rotatably connected to the lower front ends of the support plate, a square hole opened above the middle of the front side of the support plate, a vertical straightening component for vertically straightening the rectangular tube in cooperation with the guide rollers slidably connected to the inner cavity of the square hole, and a horizontal straightening component for horizontally straightening the rectangular tube is provided on the rear side of the support plate and on both sides of the straightening component; mounting holes for connecting the straightening machine are opened on the surface of the base plate.

[0008] The lateral straightening assembly includes U-shaped frames disposed on the back of the support plate and located on both sides of the vertical straightening assembly. The ends of the two sets of U-shaped frames pass through the support plate and extend to the front side of the support plate. A vertically arranged second straightening roller is rotatably connected between the two ends of the two sets of U-shaped frames. The surfaces of the two sets of U-shaped frames are respectively provided with adjusting members for moving the U-shaped frames back and forth to adjust the distance between the second straightening roller and the support plate. On the rear side of the support plate and at corresponding positions at the ends of each set of U-shaped frames, an anti-deviation assembly is provided for fixing the U-shaped frames to prevent them from moving.

[0009] As a preferred technical solution, the adjusting component includes a hand-tightening bolt threaded to the middle surface of each set of U-shaped frames, and an adapter post fixedly connected to the end of each set of hand-tightening bolts. The ends of the two sets of adapter posts are respectively rotatably inserted into the rear surface of the support plate.

[0010] As a preferred technical solution, the anti-deviation component includes a fixing sleeve fixedly installed on the rear side of the support plate and located at the corresponding position at the end of each set of U-shaped frames. One side surface of each set of fixing sleeves is threaded with a fixing bolt, and the end of each set of fixing bolts is threaded through the fixing sleeve and abuts against the surface of the U-shaped frame.

[0011] As a preferred technical solution, the top surface of each set of U-shaped frames is provided with a scale groove along its length, and the inner cavity of each set of scale grooves is provided with scale lines.

[0012] As a preferred technical solution, the vertical straightening component includes a mounting block that is slidably connected to the inner cavity of a square hole. Pressure rollers are rotatably inserted into the front two ends of the mounting block, and a lead screw is threadedly connected to the top center of the support plate. The end of the lead screw passes through the square hole downward and is fixedly connected to the top of the mounting block.

[0013] As a preferred technical solution, the cross-section of the adapter post is T-shaped.

[0014] As a preferred technical solution

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

[0016] 1. This utility model, through the setting of a vertical straightening component and a horizontal straightening component, allows the vertical straightening component to straighten the rectangular tube vertically, while the horizontal straightening component is responsible for straightening the rectangular tube horizontally. Thus, the combination of the two can comprehensively straighten the rectangular tube from different directions, effectively correcting the deformation of the rectangular tube in various directions, improving the straightness and accuracy of the rectangular tube, and enabling it to meet higher quality standards. Furthermore, by simultaneously straightening the rectangular tube vertically and horizontally, compared to straightening vertically or horizontally separately, the straightening work in multiple directions can be completed in one operation, reducing straightening steps and time, improving production efficiency, and is especially suitable for mass production of rectangular tubes.

[0017] 2. With the addition of an adjusting component, the operator can easily adjust the position of the U-shaped frame by manually rotating the hand-tightening bolt, thereby adjusting the spacing of the second straightening roller. This allows the device to adapt to square and rectangular tubes of different widths, improving its versatility. At the same time, the operation is simple and convenient, requiring no complex tools or equipment, thus improving the efficiency of adjustment.

[0018] 3. This utility model provides a precise reference for adjusting the position of the second straightening roller by setting the scale lines. The operator can accurately adjust the moving distance of the U-shaped frame according to the scale lines to achieve precise control of the spacing of the second straightening roller, which helps to improve the straightening accuracy and quality. It is especially suitable for occasions where the straightening accuracy of rectangular tubes is required. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the multi-point pressure adjustment mechanism of a square and rectangular tube straightening machine according to the present invention;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the U-shaped frame of this utility model.

[0022] In the picture:

[0023] 100. Base plate; 101. Support plate; 102. Guide roller; 103. Mounting hole; 104. Square hole; 105. Drive shaft;

[0024] 200. Second straightening roller; 201. U-shaped frame; 202. Hand-tightening bolt; 203. Adapter column; 204. Scale groove; 205. Scale line;

[0025] 300. Lead screw; 301. Pressure roller; 302. Mounting block;

[0026] 400. Fixing bolt; 401. Fixing sleeve. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-3 This embodiment provides a multi-point pressure adjustment mechanism for a rectangular tube straightening machine, including a base plate 100. A support plate 101 is fixedly installed on the top of the base plate 100. Guide rollers 102 for conveying rectangular tubes are rotatably connected to the lower front ends of the support plate 101. A square hole 104 is opened above the middle of the front side of the support plate 101. A vertical straightening component for cooperating with the guide rollers 102 to straighten the rectangular tube vertically is slidably connected to the inner cavity of the square hole 104. A horizontal straightening component for straightening the rectangular tube horizontally is provided on the rear side of the support plate 101 and on both sides of the straightening component. A mounting hole 103 for connecting the straightening machine is opened on the surface of the base plate 100.

[0029] The lateral straightening assembly includes two U-shaped frames 201 disposed on the back of the support plate 101 and located on both sides of the vertical straightening assembly. The ends of the two U-shaped frames 201 respectively penetrate the support plate 101 and extend to the front side of the support plate 101. A vertically arranged second straightening roller 200 is rotatably connected between the two ends of the two U-shaped frames 201. The surfaces of the two U-shaped frames 201 are respectively provided with adjusting members for moving the U-shaped frames 201 back and forth to adjust the distance between the second straightening roller 200 and the support plate 101. On the rear side of the support plate 101 and at corresponding positions at the ends of each U-shaped frame 201, anti-deviation components are provided for fixing the U-shaped frames 201 to prevent them from moving. By setting up vertical and horizontal straightening components, the vertical straightening component can straighten the rectangular tube vertically, while the horizontal straightening component is responsible for straightening the rectangular tube horizontally. Thus, the combination of the two can comprehensively straighten the rectangular tube from different directions, effectively correcting the deformation of the rectangular tube in various directions, improving the straightness and accuracy of the rectangular tube, and making it meet higher quality standards. Moreover, by straightening the rectangular tube vertically and horizontally at the same time, compared with straightening vertically or horizontally separately, the straightening work in multiple directions can be completed in one operation, reducing straightening processes and time, improving production efficiency, and is especially suitable for mass production of rectangular tubes.

[0030] The straightening machine is a well-known piece of equipment in the field of science. Its specific working principle and structure will not be described in detail here. Meanwhile, the mounting holes on the surface of the base plate are connected to the straightening machine by bolts. How the base plate is connected to the straightening machine by bolts is common technical knowledge and will not be described in detail here.

[0031] The adjusting component includes a hand-tightening bolt 202 threadedly connected to the middle surface of each set of U-shaped frames 201. Each set of hand-tightening bolts 202 has a fixed adapter post 203 at its end. The ends of the two sets of adapter posts 203 are respectively rotatably inserted into the rear surface of the support plate 101. With the setting of the adjusting component, the operator can easily adjust the position of the U-shaped frame 201 by manually rotating the hand-tightening bolt 202, thereby adjusting the spacing of the second straightening roller 200. It can adapt to square and rectangular tubes of different widths, improving the versatility of the device. At the same time, the operation is simple and convenient, without the need for complicated tools or equipment, thus improving the efficiency of adjustment.

[0032] The anti-deviation component includes a fixing sleeve 401 fixedly installed on the rear side of the support plate 101 and located at the corresponding position at the end of each set of U-shaped frames 201. Each set of fixing sleeves 401 has a fixing bolt 400 threadedly connected to one side surface. The end of each set of fixing bolts 400 is threaded through the fixing sleeve 401 and abuts against the surface of the U-shaped frame 201. By setting the fixing sleeve 401 and fixing bolt 400, tightening the fixing bolt 400 so that its end abuts against the surface of the U-shaped frame 201 can effectively prevent the U-shaped frame 201 from deviating when subjected to external force, ensuring the positional accuracy of the lateral straightening component, thereby improving the consistency and reliability of the straightening effect.

[0033] Each set of U-shaped frames 201 has a scale groove 204 on its top surface that runs along its length. Each set of scale grooves 204 has a scale line 205 in its inner cavity. The scale line 205 provides a precise reference for adjusting the position of the second straightening roller 200. The operator can accurately adjust the moving distance of the U-shaped frame 201 according to the scale line 205, so as to achieve precise control of the spacing of the second straightening roller 200. This helps to improve the accuracy and quality of straightening, and is especially suitable for occasions where the straightening accuracy of rectangular tubes is required.

[0034] The vertical straightening component includes a mounting block 302 that slides vertically within the cavity of a square hole 104. Pressure rollers 301 are rotatably inserted into the front ends of the mounting block 302. A lead screw 300 is threadedly connected to the top center of the support plate 101. The end of the lead screw 300 passes downward through the square hole 104 and is fixedly connected to the top of the mounting block 302. Through the vertical straightening component, the pressure rollers 301 rotatably inserted into the front ends of the mounting block 302 can make good contact with the surface of the rectangular tube. During the conveying process of the rectangular tube, the pressure rollers 301 apply appropriate pressure to the rectangular tube, effectively correcting the vertical deformation of the rectangular tube and achieving a highly efficient vertical straightening function.

[0035] The T-shaped cross-section of the adapter post 203 effectively prevents axial movement of the adapter post 203 during rotation, ensuring the stability and reliability of the connection between the hand-tightened bolt 202 and the support plate 101.

[0036] Working principle;

[0037] The base plate 100 is installed on the working part of the straightening machine through the mounting hole 103. At the same time, the end of the guide roller 102 on the right side is fixedly connected to the drive shaft 105, and the drive shaft 105 is connected to the output shaft of the straightening machine.

[0038] At this point, the rectangular tube that needs to be straightened is placed on the guide roller 102 at the lower front side of the support plate 101, and the guide roller 102 provides initial support and guidance for the rectangular tube.

[0039] Then, depending on the specific situation of the rectangular tube, the screw 300 is rotated, which in turn drives the mounting block 302 to slide up and down in the square hole 104, adjusting it to a suitable height position so that the pressure rollers 301 at both ends of the front side of the mounting block 302 can contact the upper or lower surface of the rectangular tube with moderate pressure, so as to straighten the rectangular tube vertically.

[0040] Furthermore, observe the lateral deformation of the rectangular tube. Rotate the hand-tightening bolt 202. Since the hand-tightening bolt 202 is threadedly connected to the middle surface of the U-shaped frame 201, and its end adapter 203 is rotatably inserted into the rear surface of the support plate 101, when the hand-tightening bolt 202 is rotated, the U-shaped frame 201 will move along the axial direction of the hand-tightening bolt 202, thereby driving the second straightening roller 200 to move and adjust the distance between the second straightening roller 200 and the support plate 101, so that the second straightening roller 200 can straighten the rectangular tube laterally. At the same time, the scale line 205 in the upper scale groove 204 of the U-shaped frame 201 can be referenced to achieve more precise adjustment.

[0041] At this point, tighten the fixing bolts 400 on one side of the fixing sleeve 401 so that the threaded end of the fixing bolts 400 passes through the fixing sleeve 401 and abuts against the surface of the U-shaped frame 201, preventing the U-shaped frame 201 from shifting during operation and ensuring the stability and accuracy of lateral alignment.

[0042] When the straightening machine is started, the output shaft of the straightening machine drives the guide roller 102 to rotate, causing the rectangular tube to move from left to right under the drive of the guide roller 102. At the same time, under the combined action of the pressure roller 301 of the vertical straightening component and the second straightening roller 200 of the horizontal straightening component, the rectangular tube is straightened vertically and horizontally.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point pressure adjustment mechanism for a square and rectangular tube straightening machine, characterized in that, The system includes a base plate (100), on which a support plate (101) is fixedly mounted. Guide rollers (102) for conveying rectangular tubes are rotatably connected to the lower front ends of the support plate (101). A square hole (104) is provided above the middle front of the support plate (101). A vertical straightening assembly for cooperating with the guide rollers (102) to vertically straighten the rectangular tube is slidably connected to the inner cavity of the square hole (104). A horizontal straightening assembly for horizontally straightening the rectangular tube is provided on the rear side of the support plate (101) and on both sides of the straightening assembly. A mounting hole (103) for connecting a straightening machine is provided on the surface of the base plate (100). The lateral straightening assembly includes U-shaped frames (201) disposed on the back of the support plate (101) and located on both sides of the vertical straightening assembly. The ends of the two sets of U-shaped frames (201) respectively penetrate the support plate (101) and extend to the front side of the support plate (101). The two ends of the two sets of U-shaped frames (201) are respectively rotatably connected to a vertically arranged second straightening roller (200). The surfaces of the two sets of U-shaped frames (201) are respectively provided with adjusting members for moving the U-shaped frames (201) back and forth to adjust the distance between the second straightening roller (200) and the support plate (101). The support plate (101) is provided with anti-offset components on the rear side and at corresponding positions at the ends of each set of U-shaped frames (201) for fixing the U-shaped frames (201) and preventing them from moving.

2. The multi-point pressure adjustment mechanism for a square and rectangular tube straightening machine according to claim 1, characterized in that: The adjusting component includes a hand-tightening bolt (202) threaded to the middle surface of each set of U-shaped brackets (201), and an adapter post (203) is fixedly connected to the end of each set of hand-tightening bolts (202). The ends of the two sets of adapter posts (203) are respectively rotatably inserted into the rear surface of the support plate (101).

3. The multi-point pressure adjustment mechanism for a square and rectangular tube straightening machine according to claim 2, characterized in that: The anti-offset assembly includes a fixing sleeve (401) fixedly installed on the rear side of the support plate (101) and located at the corresponding position at the end of each set of U-shaped frames (201). Each set of fixing sleeves (401) has a fixing bolt (400) threadedly connected to one side surface. The end of each set of fixing bolts (400) threadedly passes through the fixing sleeve (401) and abuts against the surface of the U-shaped frame (201).

4. The multi-point pressure adjustment mechanism for a square and rectangular tube straightening machine according to claim 3, characterized in that: Each set of the lattice frame (201) has a scale groove (204) on its top surface that extends along its length, and each set of the scale groove (204) has a scale line (205) in its inner cavity.

5. The multi-point pressure adjustment mechanism for a square and rectangular tube straightening machine according to claim 1, characterized in that: The vertical straightening assembly includes a mounting block (302) that is slidably connected to the inner cavity of the square hole (104). Pressure rollers (301) are rotatably inserted into the front two ends of the mounting block (302). A lead screw (300) is threadedly connected to the top center of the support plate (101). The end of the lead screw (300) passes through the square hole (104) downward and is fixedly connected to the top of the mounting block (302).

6. The multi-point pressure adjustment mechanism of a square and rectangular tube straightening machine according to claim 2, characterized in that: The cross-section of the adapter post (203) is T-shaped.

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