Straightening structure of longitudinal welded pipe mill

Abstract

The utility model relates to a straightening structure of a longitudinal welded pipe mill, which belongs to the technical field of longitudinal welded pipe mills and comprises a base and a support box fixedly connected to the top of the base, a mounting box is arranged at the top of the base, and a positioning conveying mechanism for positioning a steel pipe is arranged in the support box. The positioning conveying mechanism comprises a first positioning roller rotationally connected into the supporting box, and a hydraulic cylinder extending into the supporting box is fixedly mounted at the top of the supporting box. According to the straightening structure of the straight seam pipe welding machine, the hydraulic cylinder is arranged to drive the mounting frame to move downwards, at the moment, the first positioning roller and the second positioning roller are arranged so that the first positioning roller and the second positioning roller can abut against a steel pipe at the same time, then the steel pipe can be positioned, and the driving mechanism is arranged to drive the first positioning roller to rotate, so that the steel pipe is straightened. And the first positioning roller can drive the steel pipe to be conveyed, so that the steel pipe is conveniently conveyed into the mounting box, and the effect of positioning and conveying the steel pipe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of straight seam pipe welding machines, in particular to a straightening structure of a straight seam pipe welding machine. Background Art

[0002] A straight seam pipe welder is an automated, mechanized welding machine primarily used to automatically create straight welds on workpieces. Straightening steel pipes primarily eliminates internal stresses within the pipe. During the forming and welding process, factors such as temperature and external forces can generate internal stresses that can cause the pipe to bend. The straightening machine uses multiple elastic-plastic bending cycles to apply a force greater than but opposite to the internal stress, completely removing the initial stress and straightening the pipe.

[0003] During the operation of a straight seam welded pipe machine, a straightening mechanism is required. Chinese Utility Model Patent Publication No. CN218945988U discloses a straightening machine for straight seam welded pipes. The machine comprises a base plate, a mounting plate disposed on the top of the base plate, a first mounting bracket fixedly connected to the top of the mounting plate, two second mounting brackets fixedly connected to one side of the first mounting bracket, a first straightening roller and a second straightening roller rotatably connected between the inner walls of the first mounting bracket and between the two second mounting brackets, the first and second straightening rollers of the first mounting bracket being arranged perpendicular to the first and second straightening rollers of the second mounting bracket, tooth grooves disposed at both ends of the outer wall of the first straightening roller, and a gear plate keyed to each end of the second straightening roller, which meshes with the tooth grooves. A slide groove is disposed on the top of the base plate, a slider slidably connected within the slide groove, and an electric push rod is fixedly connected to the bottom of the base plate. This utility model can straighten welded pipes from four sides, top, bottom, left, and right, while preventing deformation of the inner wall of the straight seam welded pipe.

[0004] However, during the use of this utility model, due to the long length of the steel pipe, when the steel pipe passes through the rotating seat, there is a long distance between the rotating seat and the mounting plate, and no structure for positioning the steel pipe is set in this space. It is impossible to ensure that the steel pipe enters smoothly between the first straightening roller and the second straightening roller, and it cannot meet production needs. Therefore, a straightening structure of a straight seam pipe welding machine is proposed to solve the above problems. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a straightening structure for a straight seam pipe welding machine, which has the advantage of facilitating the positioning and transportation of steel pipes. It solves the problem that due to the long length of the steel pipe, when the steel pipe passes through the rotating seat, there is a long distance between the rotating seat and the mounting plate, and there is no structure for positioning the steel pipe in this space, which makes it impossible to ensure that the steel pipe can smoothly enter between the first straightening roller and the second straightening roller, and cannot meet production needs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a straightening structure for a straight seam pipe welding machine, comprising a base and a support box fixedly connected to the top of the base, a mounting box being provided on the top of the base, and a positioning and conveying mechanism for positioning the steel pipe being provided inside the support box;

[0007] The positioning and conveying mechanism includes a first positioning roller rotatably connected to the interior of the support box, a hydraulic cylinder extending into the interior of the support box is fixedly installed on the top of the support box, a mounting frame is fixedly connected to the output end of the hydraulic cylinder, a second positioning roller extending to the bottom of the mounting frame is rotatably installed inside the mounting frame, and a driving mechanism for driving the first positioning roller is provided on the front of the support box;

[0008] The driving mechanism includes a driving box fixedly connected to the front of the supporting box, a driving motor fixedly installed on the front of the driving box, a transmission gear extending to the interior of the driving box is fixedly connected to the output shaft of the driving motor, and a driven gear meshing with the transmission gear is rotatably connected to the interior of the driving box, and one end of the driven gear is fixedly connected to one end of the first positioning roller.

[0009] Furthermore, the number of the first positioning rollers and the number of the second positioning rollers are both two, the diameter of the first positioning roller is the same as the diameter of the second positioning roller, and positioning openings are provided on both the left and right sides of the support box.

[0010] Furthermore, the front and back sides of the mounting frame are fixedly connected with positioning blocks extending into the interior of the support box, and the inner wall of the support box is provided with positioning grooves adapted to the positioning blocks.

[0011] Furthermore, a fixed plate is fixedly connected to the interior of the installation box, and two straightening rollers are rotatably connected to the front and back of the top of the fixed plate. The tops and bottoms of the two straightening rollers are fixedly connected to gears.

[0012] Furthermore, a first motor is fixedly connected to the side of the fixed plate away from the straightening roller, the output shaft of the first motor is fixedly connected to the bottom of the front straightening roller, the two straightening rollers are meshed with each other through gears, and openings are opened on both sides of the left and right sides of the mounting box.

[0013] Furthermore, the top of the base is rotatably connected to a mounting platform, the mounting box is fixedly connected to the top of the mounting platform, and the bottom of the base is fixedly installed with a second motor for rotating the mounting platform.

[0014] Furthermore, the base and the top of the mounting platform are both fixedly connected with a support plate, and the interior of the support plate is fixedly connected with a positioning cylinder.

[0015] Furthermore, a limiting block extending into the interior of the base is fixedly connected to the bottom of the mounting platform, and a limiting groove adapted to the limiting block is provided on the upper surface of the base.

[0016] Compared with the prior art, the present invention provides a straightening structure for a straight seam pipe welding machine, which has the following beneficial effects:

[0017] 1. The straightening structure of the straight seam pipe welding machine drives the mounting frame to move downward by setting a hydraulic cylinder. At this time, the first positioning roller and the second positioning roller are set so that the first positioning roller and the second positioning roller can abut against the steel pipe at the same time, thereby positioning the steel pipe. The driving mechanism is then set to drive the first positioning roller to rotate, so that the first positioning roller can drive the steel pipe to be transported, thereby facilitating its transportation into the installation box, thereby achieving the effect of positioning and transporting the steel pipe.

[0018] 2. The straightening structure of the straight seam pipe welding machine is equipped with a second motor to drive the mounting table to rotate, so that the mounting table can drive the mounting box to rotate. When the steel pipe enters the mounting box, the rotation of the mounting table can straighten the steel pipe, so that the steel pipe is in a vertical state. This solves the problem that due to the long length of the steel pipe, when the steel pipe passes through the rotating seat, there is a long distance between the rotating seat and the mounting plate, and there is no structure for positioning the steel pipe in this space, which cannot ensure that the steel pipe can smoothly enter between the first straightening roller and the second straightening roller, and cannot meet production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 This is a structural diagram of the positioning and conveying mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the drive mechanism of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the straightening roller of the utility model;

[0023] Figure 5 This is a three-dimensional diagram of the structure of the utility model.

[0024] In the figure: 1 base, 2 support box, 3 installation box, 4 first positioning roller, 5 hydraulic cylinder, 6 installation frame, 7 second positioning roller, 8 drive box, 9 drive motor, 10 transmission gear, 11 driven gear, 12 positioning port, 13 fixing plate, 14 first motor, 15 straightening roller, 16 gear, 17 through port, 18 second motor, 19 installation platform, 20 support plate, 21 positioning cylinder. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1:

[0027] See also Figures 1 to 5 In this embodiment, a straightening structure of a straight seam pipe welding machine includes a base 1 and a support box 2 fixedly connected to the top of the base 1. A mounting box 3 is provided on the top of the base 1. A positioning and conveying mechanism for positioning the steel pipe is provided inside the support box 2. The positioning and conveying mechanism includes a first positioning roller 4 rotatably connected to the inside of the support box 2. A hydraulic cylinder 5 extending into the inside of the support box 2 is fixedly installed on the top of the support box 2. A mounting frame 6 is fixedly connected to the output end of the hydraulic cylinder 5. A second positioning roller 7 extending to the bottom of the mounting frame 6 is rotatably installed inside the mounting frame 6.

[0028] Among them, the number of the first positioning roller 4 and the number of the second positioning roller 7 are both two, the diameter of the first positioning roller 4 is the same as the diameter of the second positioning roller 7, positioning openings 12 are opened on the left and right sides of the support box 2, and the front and back sides of the mounting frame 6 are fixedly connected with positioning blocks extending into the interior of the support box 2, and a positioning groove adapted to the positioning block is opened on the inner wall of the support box 2.

[0029] It should be noted that a bearing compatible with the second positioning roller 7 is fixedly installed inside the mounting frame 6 .

[0030] In this embodiment, a driving mechanism for driving the first positioning roller 4 is provided on the front of the support box 2, and the driving mechanism includes a driving box 8 fixedly connected to the front of the support box 2, and a driving motor 9 is fixedly installed on the front of the driving box 8. The output shaft of the driving motor 9 is fixedly connected to a transmission gear 10 extending to the interior of the driving box 8, and the interior of the driving box 8 is rotatably connected to a driven gear 11 meshing with the transmission gear 10, and one end of the driven gear 11 is fixedly connected to one end of the first positioning roller 4.

[0031] The diameter of the driven gear 11 is smaller than that of the transmission gear 10 , so as to achieve an acceleration effect. The number of the driven gears 11 is the same as the number of the first positioning rollers 4 .

[0032] In this embodiment, a first motor 14 is fixedly connected to the side of the fixed plate 13 away from the straightening roller 15, the output shaft of the first motor 14 is fixedly connected to the bottom of the front straightening roller 15, the two straightening rollers 15 are meshed with each other through a gear 16, and openings 17 are opened on both sides of the left and right sides of the installation box 3.

[0033] Among them, by arranging the first motor 14 to drive the two straightening rollers 15 to rotate at the same time, on the one hand, the effect of conveying the steel pipe can be achieved, and on the other hand, the steel pipe can be transversely straightened.

[0034] Example 2:

[0035] See also Figure 1 On the basis of embodiment 1, it includes a mounting platform 19 rotatably connected to the top of the base 1, the mounting box 3 is fixedly connected to the top of the mounting platform 19, and a second motor 18 for rotating the mounting platform 19 is fixedly installed at the bottom of the base 1. The tops of the base 1 and the mounting platform 19 are both fixedly connected to a support plate 20, and a positioning cylinder 21 is fixedly connected to the inside of the support plate 20.

[0036] In this embodiment, a limiting block extending into the interior of the base 1 is fixedly connected to the bottom of the mounting platform 19 , and a limiting groove adapted to the limiting block is formed on the upper surface of the base 1 .

[0037] By adopting the above technical solution, a second motor 18 is set to drive the mounting platform 19 to rotate, so that the mounting platform 19 can drive the mounting box 3 to rotate. When the steel pipe enters the interior of the mounting box 3, the rotation of the mounting platform 19 can straighten the steel pipe so that the steel pipe is in a vertical state.

[0038] The working principle of the above embodiment is:

[0039] First, the staff will pass the processed steel pipe through the positioning cylinder 21. At this time, the steel pipe enters the support box 2, and the hydraulic cylinder 5 is started to drive the second positioning roller 7 to move downward. At the same time, the drive motor 9 is started to drive the first positioning roller 4 to rotate, and the steel pipe is positioned and conveyed so that the steel pipe enters the installation box 3. At the same time, the steel pipe is located between the two straightening rollers 15. At this time, the first motor 14 is started to drive the two straightening rollers 15 to rotate, and the second motor 18 is started to drive the installation box 3 to rotate, and the steel pipe is straightened. The straightened steel pipe can be conveyed out.

[0040] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0042] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straightening structure for a straight seam pipe welding machine, comprising a base (1) and a support box (2) fixedly connected to the top of the base (1), characterized in that: A mounting box (3) is provided on the top of the base (1), and a positioning and conveying mechanism for positioning the steel pipe is provided inside the support box (2); The positioning and conveying mechanism comprises a first positioning roller (4) rotatably connected to the interior of the support box (2); a hydraulic cylinder (5) extending into the interior of the support box (2) is fixedly installed on the top of the support box (2); a mounting frame (6) is fixedly connected to the output end of the hydraulic cylinder (5); a second positioning roller (7) extending to the bottom of the mounting frame (6) is rotatably installed inside the mounting frame (6); and a driving mechanism for driving the first positioning roller (4) is provided on the front of the support box (2); The driving mechanism comprises a driving box (8) fixedly connected to the front of the supporting box (2); a driving motor (9) is fixedly installed on the front of the driving box (8); a transmission gear (10) extending into the interior of the driving box (8) is fixedly connected to the output shaft of the driving motor (9); a driven gear (11) meshing with the transmission gear (10) is rotatably connected to the interior of the driving box (8); one end of the driven gear (11) is fixedly connected to one end of the first positioning roller (4).

2. The straightening structure of a longitudinal seam pipe welding machine according to claim 1, characterized in that: The number of the first positioning roller (4) and the number of the second positioning roller (7) are both two, the diameter of the first positioning roller (4) is the same as the diameter of the second positioning roller (7), and positioning openings (12) are provided on both the left and right sides of the support box (2).

3. The straightening structure of a longitudinal seam pipe welding machine according to claim 1, characterized in that: The front and back sides of the mounting frame (6) are fixedly connected to positioning blocks extending into the interior of the support box (2), and positioning grooves adapted to the positioning blocks are provided on the inner wall of the support box (2).

4. The straightening structure of a longitudinal seam pipe welder according to claim 1, characterized in that: A fixed plate (13) is fixedly connected to the interior of the installation box (3), and two straightening rollers (15) are rotatably connected to the front and back of the top of the fixed plate (13), and the tops and bottoms of the two straightening rollers (15) are fixedly connected to gears (16).

5. The straightening structure of a longitudinal seam pipe welding machine according to claim 4, characterized in that: A first motor (14) is fixedly connected to the side of the fixed plate (13) away from the straightening roller (15); an output shaft of the first motor (14) is fixedly connected to the bottom of the front straightening roller (15); the two straightening rollers (15) are meshed with each other through a gear (16); and openings (17) are provided on both the left and right sides of the installation box (3).

6. The straightening structure of a longitudinal seam pipe welder according to claim 1, characterized in that: The top of the base (1) is rotatably connected to a mounting platform (19), the mounting box (3) is fixedly connected to the top of the mounting platform (19), and the bottom of the base (1) is fixedly mounted with a second motor (18) for rotating the mounting platform (19).

7. The straightening structure of a longitudinal seam pipe welder according to claim 6, characterized in that: The base (1) and the top of the mounting platform (19) are both fixedly connected with a support plate (20), and the interior of the support plate (20) is fixedly connected with a positioning cylinder (21).

8. The straightening structure of a longitudinal seam pipe welder according to claim 6, characterized in that: The bottom of the mounting platform (19) is fixedly connected to a limiting block extending into the interior of the base (1), and the upper surface of the base (1) is provided with a limiting groove adapted to the limiting block.

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