Straightening mechanism for small-caliber steel pipe of longitudinal welded pipe production line

Abstract

The utility model discloses a small-caliber steel pipe straightening mechanism for a longitudinal welded pipe production line, and relates to the technical field of longitudinal welded pipe production equipment. The machine comprises a machine body, auxiliary rolling wheels are embedded in the inner walls of side grooves in the left and right side walls of the machine body, a supporting ring is installed in the middle of the inner side of the machine body, and a driving assembly is installed on the rear side wall, corresponding to the supporting ring, of the machine body; a sliding assembly is slidably connected to the side wall of the top of the machine body, a hanging ring is hung at the bottom of the sliding block, an electric heating plate is embedded in the inner wall of the hanging ring, and a detection assembly is installed on the inner wall of the bottom of the hanging ring. According to the utility model, the auxiliary rollers, the supporting ring and the driving assembly are utilized to drive the longitudinal welded pipe to move in the straightening machine body, and meanwhile, the friction force of contact between the longitudinal welded pipe and the straightening machine body is greatly weakened, and whether the longitudinal welded pipe is bent or not can be detected through the cooperation of the sliding assembly and the detection assembly; and meanwhile, the bending position can be heated.

Description

Technical Field

[0001] The utility model belongs to the technical field of straight seam welded pipe production equipment, and particularly relates to a straightening mechanism for small-diameter steel pipes in a straight seam welded pipe production line. Background Art

[0002] Straight seam welded pipes are pipes made by rolling and welding hot-rolled or cold-rolled steel plates or steel strips on welding equipment. During the production process of straight seam welded pipes, a straightening process is also required, and this process is carried out by using a straightening machine.

[0003] A Chinese patent application (or patent) with the publication number CN219581521U discloses a steel pipe straightening machine, which includes a straightening machine main body provided with a straightening mechanism. A feeding mechanism for assisting the feeding of steel pipe materials is arranged on one side of the straightening machine main body. The top end of one side of the straightening machine main body is fixedly connected with a control panel. The electromagnetic heating component is fixedly connected to the top of the straightening machine main body near the input end of the steel pipe material, and the electromagnetic heating component is electrically connected with the control panel. A detection mechanism is arranged at the bottom of the electromagnetic heating component, and the detection mechanism is fixedly connected with the straightening machine main body. Through the arranged cleaning mechanism, the steel pipe material and the steel brush can be driven to rotate in different directions respectively under the drive of the motor. In this way, during the feeding process of the steel pipe, its surface can contact the surface of the steel brush to the greatest extent, improving the rust removal quality. And under the action of the fan, the rust chips can be sent to the inner side of the chip guide groove to realize collection.

[0004] In the above-mentioned steel pipe straightening machine, a feeding port is arranged on the left side of the straightening machine main body, and the steel pipe is inserted into the inside of the straightening machine main body in an inserted manner. The inner wall of the feeding port of the straightening machine main body is smooth and does not have any structure for assisting the entry of the steel pipe. Therefore, the steel pipe will directly contact the inner wall of the notch, and then during the process of pushing the steel pipe into the straightening machine main body, the mutual contact and rubbing of metal parts will not only cause scratches on the outer wall of the steel pipe, but also produce extremely harsh noises. In addition, the electromagnetic heating component is fixedly connected to the top of the straightening machine main body near the input end of the steel pipe material, that is, the position of the electromagnetic heating component is not adjustable. When the bent part of the steel pipe is inside the straightening machine main body, if it is necessary to heat the bent part, it is not applicable, or only when the steel pipe is delivered into the bending machine main body and the delivery work is stopped can this part be heated. And this kind of work efficiency will cause the steel pipe to need to be manually supported for a long time, thereby causing a great burden on the worker's body. For this reason, we provide a straightening mechanism for small-diameter steel pipes in a straight seam welded pipe production line to solve the problems that appear above. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a straight-seam welded pipe production line small-diameter steel pipe straightening mechanism. By using auxiliary rollers, support rings and drive components, not only can the straight-seam welded pipe be driven to move in the straightening machine body, but also the frictional force between the straight-seam welded pipe and the body is greatly weakened. By using the cooperation of the sliding component and the detection component, not only can it detect whether the straight-seam welded pipe is bent, but also it can heat the bent position, solving the problems that occur in the existing steel pipe straightening machines.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0007] The present utility model is a straight-seam welded pipe production line small-diameter steel pipe straightening mechanism, including a body. A cover plate is installed on the front side wall of the body, and a controller is inlaid on the cover plate. A pipe body is inserted through the central axis of the body; side grooves are opened on the left and right side walls of the body, and auxiliary rollers are inlaid on the inner walls of the side grooves. A support ring is installed in the middle of the inner side of the body, and a drive component is installed on the rear side wall of the body corresponding to the support ring. The drive component includes a drive motor and a drive roller installed on its shaft end;

[0008] A sliding component is slidably connected to the top side wall of the body. The sliding component includes a slider and pneumatic rods installed on both sides thereof. A hanging ring is hoisted at the bottom of the slider, and an electric heating plate is inlaid on the inner wall of the hanging ring. A detection component is installed on the bottom inner wall of the hanging ring. The detection component includes an elastic member and a connecting rod inserted through its shaft end, and a rotation amount detector is also provided on the connecting rod.

[0009] The present utility model is further provided that grooves are opened on the inner walls corresponding to the four quadrant points of the side grooves. The auxiliary rollers are arranged in the grooves inside the side grooves, and the outer wall of the end of the auxiliary rollers is in contact with the outer wall of the pipe body.

[0010] The present utility model is further provided that the support ring and the drive component are arranged oppositely, and a notch is opened on the outer wall of one end of the support ring facing the drive component. The drive roller in the drive component passes through the notch and is in contact with the outer wall of the pipe body inside the support ring.

[0011] The present utility model is further provided that two chutes are opened on the top of the body and are arranged symmetrically left and right. The outer walls of both ends of the chutes are welded with top plates. A partition block is arranged between the two chutes. A total of two sliding components are provided, and the two sliding components are arranged symmetrically left and right with respect to the partition block.

[0012] The utility model is further configured that the slide groove is slidably connected to the slider, and the inner wall of the partition block and the top plate are respectively connected to the two ends of the pneumatic rod, the lifting ring at the bottom of the slider is sleeved on the outer wall of the tube body, and the lifting ring contacts the outer wall of the tube body through the electric heating plate.

[0013] The utility model is further configured that the elastic member is composed of a hollow column, a spring and a cylinder, the hollow column and the cylinder are slidably connected to each other, and a spring is further provided between the hollow column and the cylinder, and a connecting piece is welded to the top outer wall of the cylinder.

[0014] The utility model is further configured that two elastic members are provided in total, and the two elastic members are respectively arranged at two ends of a connecting rod, and the connecting rod is inserted into the connecting sheet of the elastic member.

[0015] The utility model is further configured that the controller is respectively connected with the electric heating plate, the rotation amount detector and the driving motor through wires, and the pneumatic rod is also connected with the air pump.

[0016] The utility model has the following beneficial effects:

[0017] The utility model provides auxiliary rollers, support rings and drive components, and side grooves for the shuttle of straight seam welded pipes are opened on the left and right ends of the machine body, and auxiliary rollers are embedded in the side walls at the four quadrant points of the side grooves, that is, when the straight seam welded pipe penetrates into the side grooves, it will not contact the inner wall of the machine body, but contact the auxiliary rollers. The auxiliary rollers can greatly reduce the friction between each other, which is convenient for the shuttle of the straight seam welded pipe. At the same time, a drive component is also installed on the rear side of the machine body. The drive component is used to provide power support for the shuttle of the straight seam welded pipe, and a support ring for clamping the straight seam welded pipe is installed inside the machine body opposite to the drive component, and balls are embedded on the inner wall of the support ring. Through the contact of the balls with the side grooves, the friction between each other can be greatly reduced, and the shuttle of the straight seam welded pipe in the machine body can be assisted.

[0018] The utility model provides a sliding component and a detection component. The sliding component is hoisted and arranged on the top of the machine body, and a lifting ring in the sliding component is sleeved on the outer wall of the pipe body of the straight seam welded pipe, and an electric heating plate is embedded on the inner wall of the lifting ring. The pipe body can be heated by the electric heating plate, and a detection component is installed on the inner side of the bottom of the lifting ring. The rotation amount detector in the detection component can measure whether the pipe body of the straight seam welded pipe corresponding to the section is bent, and then judge whether the section needs to be straightened. Before the straightening work is carried out, the electric heating plate in the sliding component heats the pipe body at the section first, which provides convenience for the subsequent straightening work.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 It is a structural schematic diagram of a straight seam welded pipe production line for a small diameter steel pipe straightening mechanism.

[0022] Figure 2 It is a structural sectional view of a straight seam welded pipe production line for a small diameter steel pipe straightening mechanism.

[0023] Figure 3 It is a structural disassembled view of a straight seam welded pipe production line for a small diameter steel pipe straightening mechanism.

[0024] Figure 4 It is a structural schematic diagram of the machine body.

[0025] Figure 5 It is a structural disassembled view of the machine body and some of its accessory structures.

[0026] Figure 6 It is a structural disassembled view of the sliding assembly and the detection assembly.

[0027] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0028] 1 - machine body, 101 - chute, 101a - top plate, 102 - side groove, 103 - partition block, 2 - cover plate, 3 - controller, 4 - pipe body, 5 - sliding assembly, 501 - slider, 501a - lifting ring, 502 - pneumatic rod, 503 - electric heating plate, 6 - auxiliary roller, 7 - support ring, 8 - detection assembly, 801 - elastic member, 801a - hollow column, 801b - spring, 801c - cylinder, 801d - connecting piece, 802 - connecting rod, 803 - rotation amount detector, 9 - drive assembly, 901 - drive roller, 902 - drive motor. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Specific examples

[0030] Please refer to Figures 1-5, the utility model is a straight seam welded pipe production line small-diameter steel pipe straightening mechanism, including a machine body 1, and auxiliary rollers 6 embedded on both sides of the machine body 1. At the same time, a support ring 7 for supporting the pipe body 4 is also arranged inside the machine body 1. Meanwhile, a driving assembly 9 for driving the pipe body 4 to rotate is installed in the middle of the rear side wall of the machine body 1.

[0031] Specifically, side grooves 102 are opened at both left and right ends of the machine body 1. A cover plate 2 is covered on the front side wall of the machine body 1, and a controller 3 is embedded on the outer wall of the cover plate 2. At the same time, auxiliary rollers 6 are embedded at the four corners of the inner side wall of the side groove 102. The machine body 1 contacts the outer wall of the pipe body 4 through the auxiliary rollers 6. At the same time, a support ring 7 for supporting the pipe body 4 is installed at the center inside the machine body 1. The support ring 7 contacts the outer wall of the pipe body 4 through the balls on its inner wall. At the same time, a driving assembly 9 is also installed on the rear side wall of the machine body 1 corresponding to the support ring 7. The driving assembly 9 includes a driving motor 902 and a driving roller 901 installed on its shaft end.

[0032] Furthermore, the machine body 1 of the steel pipe straightening machine also includes a straightening mechanism for straightening the steel pipe and a power mechanism for driving the straight seam welded pipe to shuttle inside it. And the above-mentioned straightening mechanism and power mechanism are both prior arts, so they will not be elaborated here.

[0033] The operation process of this embodiment is as follows: Insert a small-diameter straight seam welded pipe through the side groove 102 on the right side of the machine body 1. At this time, the pipe body 4 of the small-diameter straight seam welded pipe will first contact the auxiliary roller 6 on the inner wall of the side groove 102. Then insert the pipe body 4 of the small-diameter straight seam welded pipe again until the pipe body 4 of the small-diameter straight seam welded pipe passes through the side groove 102 at the other end of the machine body 1. At the same time, the middle outer wall of the pipe body 4 is also clamped in the circular groove in the support ring 7. And because the support ring 7 is embedded with balls on its inner wall, the friction between the two can be greatly reduced. When inserting the pipe body 4, the driving motor 902 in the driving assembly 9 can drive the driving roller 901 to rotate, and the driving roller 901 contacts the outer wall of the pipe body 4. Therefore, the driving assembly 9 can drive the pipe body 4 to shuttle in the side groove 102 of the machine body 1. Specific embodiment

[0034] Please refer to Figure 6 , on the basis of Specific Embodiment 1 and Specific Embodiment 2, a sliding assembly 5 and a detection assembly 8 are also provided. The sliding assembly 5 can drive the lifting ring 501a to slide on the outer wall of the pipe body 4 through the pneumatic rod 502, so as to heat the outer wall of the pipe body 4. By using the rotation amount detector 803 in the detection assembly 8, it can detect whether the pipe body 4 is bent as the sliding assembly 5 slides. The two cooperate with each other to heat the bent position.

[0035] Specifically, the body 1 is slidably connected to the slider 501 in the sliding assembly 5 through the chute 101 at its top. The sliding assembly 5 includes the slider 501 and a pneumatic rod 502 for driving the slider 501 to slide. At the same time, a lifting ring 501a is installed at the bottom of the slider 501, and an electric heating plate 503 is inlaid on the inner wall of the lifting ring 501a. The detection assembly 8 is installed on the inner bottom wall of the lifting ring 501a. A connecting rod 802 penetrates through the top of the elastic member 801 in the detection assembly 8, and a rotational quantity detector 803 is sleeved on the outer wall of the connecting rod 802.

[0036] Furthermore, one end of the pneumatic rod 502 is connected to the slider 501, and the other end of the pneumatic rod 502 is connected to the top plate 101a or the partition block 103. The elastic member 801 is composed of a hollow column 801a, a spring 801b, a cylinder 801c, and a connecting piece 801d. Among them, the top side wall of the hollow column 801a is connected to the cylinder 801c through the spring 801b, and a connecting piece 801d is adhered to the outer wall of the top of the cylinder 801c.

[0037] The operation process of this embodiment is as follows: The pneumatic rod 502 can drive the slider 501 to slide in the chute 101. When it slides, the lifting ring 501a at the bottom of the slider 501 moves on the outer wall of the pipe body 4. When it moves, the electric heating plate 503 on its inner wall can heat the pipe body 4. At the same time, the elastic member 801 in the detection assembly 8 on the bottom of the lifting ring 501a can drive the rotational quantity detector 803 to contact the outer wall of the pipe body 4, so as to detect whether the pipe body 4 is bent, and then the two cooperate with each other to heat the bent position.

[0038] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A small-diameter steel pipe straightening mechanism for a straight seam welded pipe production line, comprising a machine body (1), a cover plate (2) being mounted on the front side wall of the machine body (1), and a controller (3) being embedded on the cover plate (2), and a pipe body (4) being inserted on the central axis of the machine body (1); the characteristics are: Side grooves (102) are provided on the left and right side walls of the machine body (1), and auxiliary rollers (6) are embedded on the inner walls of the side grooves (102); a support ring (7) is installed in the middle of the inner side of the machine body (1), and a drive assembly (9) is installed on the rear side wall of the machine body (1) corresponding to the support ring (7); the drive assembly (9) includes a drive motor (902) and a drive roller (901) installed on the end of its shaft; A sliding assembly (5) is slidably connected to the top side wall of the body (1), the sliding assembly (5) comprising a slider (501) and pneumatic rods (502) mounted on both sides thereof, a lifting ring (501a) is provided at the bottom of the slider (501), and an electric heating plate (503) is embedded on the inner wall of the lifting ring (501a), a detection assembly (8) is mounted on the inner wall of the bottom of the lifting ring (501a), the detection assembly (8) comprises an elastic member (801) and a connecting rod (802) inserted on the shaft end thereof, and a rotation amount detector (803) is also provided on the connecting rod (802).

2. According to claim 1, a small-diameter steel pipe straightening mechanism for a straight seam welded pipe production line is characterized in that: Grooves are provided on the inner walls corresponding to the four quadrant points of the side groove (102), the auxiliary roller (6) is arranged in the groove on the inside of the side groove (102), and the outer wall of the end of the auxiliary roller (6) contacts the outer wall of the tube body (4).

3. According to claim 1, a small-diameter steel pipe straightening mechanism for a straight seam welded pipe production line is characterized in that: The support ring (7) and the driving assembly (9) are arranged opposite to each other, and a notch is provided on the outer wall of one end of the support ring (7) facing the driving assembly (9), and the driving roller (901) in the driving assembly (9) passes through the notch and contacts the outer wall of the tube body (4) in the support ring (7).

4. The small-diameter steel pipe straightening mechanism of the straight seam welded pipe production line according to claim 1 is characterized in that: The top of the machine body (1) is provided with two slide grooves (101) which are arranged symmetrically on the left and right. Top plates (101a) are welded to the outer walls at both ends of the slide grooves (101). A partition block (103) is arranged between the two slide grooves (101). A total of two sliding assemblies (5) are provided, and the two sliding assemblies (5) are arranged symmetrically with respect to the partition block (103).

5. The small-diameter steel pipe straightening mechanism of the straight seam welded pipe production line according to claim 4 is characterized in that: The slide groove (101) is slidably connected to the slider (501), and the inner wall of the partition block (103) and the top plate (101a) are respectively connected to the two ends of the pneumatic rod (502), and the lifting ring (501a) at the bottom of the slider (501) is sleeved on the outer wall of the tube body (4), and the lifting ring (501a) is in contact with the outer wall of the tube body (4) through the electric heating plate (503).

6. The small-diameter steel pipe straightening mechanism of the straight seam welded pipe production line according to claim 1 is characterized in that: The elastic member (801) is composed of a hollow column (801a), a spring (801b) and a cylinder (801c); the hollow column (801a) and the cylinder (801c) are sleeved and slidably connected to each other, and a spring (801b) is further provided between the hollow column (801a) and the cylinder (801c); a connecting piece (801d) is welded to the top outer wall of the cylinder (801c).

7. The small-diameter steel pipe straightening mechanism of the straight seam welded pipe production line according to claim 6 is characterized in that: Two elastic members (801) are provided in total. The two elastic members (801) are arranged at two ends of a connecting rod (802). The connecting rod (802) is inserted into a connecting piece (801d) of the elastic member (801).

8. The small-diameter steel pipe straightening mechanism of the straight seam welded pipe production line according to claim 7 is characterized in that: The controller (3) is respectively connected to the electric heating plate (503), the rotation amount detector (803) and the driving motor (902) through wires, and the pneumatic rod (502) is also connected to an air pump.

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