Track self-adaptive adjusting device of spiral welded pipe former

Abstract

The utility model relates to the technical field of spiral welded pipe forming, in particular to a self-adaptive adjusting device for a spiral welded pipe former track, which comprises a first support frame and a second support frame, and moving guide rails are arranged at the left end and the right end of the bottom of the first support frame and the left end and the right end of the bottom of the second support frame. A first roller and a second roller are rotationally connected to the middle of the inner side of the first supporting frame and the middle of the inner side of the second supporting frame correspondingly, limiting frames are rotationally connected to the left sides and the right sides of the first supporting frame and the second supporting frame correspondingly, and a two-way screw is in threaded connection with the positions, located between the two limiting frames, of the back faces of the first supporting frame and the second supporting frame. Compared with an existing spiral welded pipe former track, the spiral welded pipe former track has the advantages that the spiral welded pipe former track can be adaptively adjusted along with the length and the diameter of the spiral welded pipe blank through the design, and the former track of the corresponding size does not need to be manually replaced; and meanwhile, forming device rails with different sizes do not need to be arranged, so that the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral welded pipe forming, and particularly relates to an adaptive adjusting device for the track of a spiral welded pipe former. Background Art

[0002] A spiral welded pipe is formed by rolling a low-carbon carbon structural steel or low-alloy structural steel strip into a pipe blank at a certain spiral angle (also called the forming angle), and then welding the pipe seam to support it. Its advantage is that large-diameter steel pipes can be produced with relatively narrow strip steel.

[0003] The production process of spiral welded pipes is as follows: raw material steel strip coil - uncoiling - supported by a set of idler rollers - centered by centering vertical rollers - delivered by a feeder - guided by a guide plate - bent and formed by a former - internal welding - on-line ultrasonic inspection - cutting - the steel pipe is output by a rear axle - repair welding - finished product inspection - collection. Among them, the former is used to bend the steel strip into a pipe blank, and then the pipe seam is welded. As the pipe blank becomes longer, it needs to be supported and rolled to assist the former in forming and subsequent welding operations. The former track is used for the part that supports and rolls the pipe blank. Currently, the length of the former track is fixed. As the length of the formed pipe blank increases, an additional set of former tracks needs to be installed to support and roll the end far from the former. During this process, manual movement and handling are required. Since the sizes of the former tracks are all customized, for formed pipe blanks of different diameters, the corresponding former tracks of different sizes need to be replaced. During the replacement operation, not only does it take a lot of time and consume a large amount of manual labor, but also equipping former tracks of different sizes correspondingly increases the production cost.

[0004] Therefore, it is particularly important to urgently design an adaptive adjusting device for the track of a spiral welded pipe former to solve the above defects. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model designs an adaptive adjusting device for the track of a spiral welded pipe former. The adaptive adjusting device for the track of a spiral welded pipe former aims to solve the technical problems that the sizes of the former tracks in the prior art are all customized, for formed pipe blanks of different diameters, the corresponding former tracks of different sizes need to be replaced. During the replacement operation, not only does it take a lot of time and consume a large amount of manual labor, but also equipping former tracks of different sizes correspondingly increases the production cost.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A spiral welded pipe former track adaptive adjustment device, comprising a first support frame and a second support frame. At the left and right ends of the bottoms of the first support frame and the second support frame, moving guide rails are provided. At the middle parts inside the first support frame and the second support frame, a first roller and a second roller are respectively rotatably connected. At the left and right sides of the first support frame and the second support frame, limiting frames are rotatably connected. A spiral welded pipe blank is erected between the two limiting frames, and at the back of the first support frame and the second support frame and between the two groups of limiting frames, a bidirectional screw is threadedly connected.

[0008] As a preferred solution of the present utility model, a driving motor is fixedly installed at the top end of the front surface of the first support frame, and the driving end of the driving motor is fixedly connected to the front end of the first roller. At the top of the first support frame and at the front end of the spiral welded pipe blank, a baffle is fixedly connected.

[0009] As a preferred solution of the present utility model, a plurality of mounting seats are fixedly installed at the bottoms of the two groups of moving guide rails. The front and rear ends of the bottoms of the first support frame and the second support frame are slidably connected to the moving guide rails through connecting seats.

[0010] As a preferred solution of the present utility model, a support seat is fixedly installed at the middle part of the two groups of moving guide rails. A hydraulic cylinder is fixedly installed at the top of the support seat, and an arc-shaped supporting plate is fixedly installed at the top of the hydraulic cylinder.

[0011] As a preferred solution of the present utility model, sliding rods are fixedly connected to the front and rear ends of the bottom of the arc-shaped supporting plate, and connecting plates are fixedly connected to the front and rear ends of the top of the hydraulic cylinder. The sliding rods are slidably connected to the connecting plates.

[0012] As a preferred solution of the present utility model, the limiting frame includes a synchronous rotating shaft rotatably connected to the left and right ends of the first support frame and the second support frame. A plurality of swing plates are fixedly connected to the outer side of the synchronous rotating shaft. A limiting roller is rotatably connected to the top end of the swing plate. The bidirectional screw is threadedly connected to the back of the first support frame and the second support frame and between the two groups of swing plates.

[0013] As a preferred solution of the present utility model, a hand wheel is fixedly connected to the left end of the bidirectional screw. The middle part of the bidirectional screw is rotatably connected to the first support frame and the second support frame through a connecting sleeve respectively. Threaded sleeves are threadedly connected to the left and right ends of the bidirectional screw, and both groups of threaded sleeves are rotatably connected to the swing plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. In the present utility model, through the cooperative design of the first support frame, the second support frame and the moving guide rail, when used in cooperation with the former, the second support frame is docked with the former, and its back is fixedly connected to the former. The formed spiral welded pipe blank is first received by the second support frame, the front end of the spiral welded pipe blank is received by the first support frame, the driving motor drives the first roller to rotate, and the second roller is driven to rotate to assist in driving the spiral welded pipe blank to roll, assisting the former to form and subsequent welding operations. As the formed spiral welded pipe blank becomes longer, the front end of the spiral welded pipe blank abuts against the baffle, and after the spiral welded pipe blank is lengthened, the first support frame will be pushed forward. Under the sliding fit of the connecting seat and the moving guide rail, the distance between the first support frame and the second support frame is adaptively adjusted according to the length of the spiral welded pipe blank.

[0016] 2. In the present utility model, through the cooperative design of the limiting frame and the bidirectional threaded rod, when the first support frame and the second support frame are used to support and roll the spiral welded pipe blank, multiple groups of limiting rollers roll along with it to limit the outside of the spiral welded pipe blank. When supporting and rolling spiral welded pipe blanks with different diameters, the handwheel is used to drive the bidirectional screw to rotate, so as to relatively move the two threaded sleeves. When the two threaded sleeves are relatively moved, the swing plate will be driven to swing. Under the connection of the synchronous rotating shaft, multiple groups of swing plates swing synchronously, so as to adjust the distance between the limiting rollers and the spiral welded pipe blank, enabling the limiting rollers to adaptively adjust to the diameter change of the spiral welded pipe blank, thus eliminating the need for manual replacement of the former tracks of corresponding sizes and the need to equip former tracks of different sizes, greatly reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the whole of the present utility model from the first perspective;

[0018] Figure 2 is a schematic structural diagram of the whole of the present utility model from the second perspective;

[0019] Figure 3 is a schematic diagram of a partial structure of the present utility model.

[0020] In the figure: 1, the first support frame; 101, the driving motor; 102, the baffle; 2, the second support frame; 3, the moving guide rail; 301, the mounting seat; 302, the connecting seat; 303, the support seat; 304, the hydraulic cylinder; 305, the arc-shaped support plate; 306, the slide bar; 307, the connecting plate; 4, the first roller; 5, the second roller; 6, the limiting frame; 601, the synchronous rotating shaft; 602, the swing plate; 603, the limiting roller; 7, the bidirectional screw; 701, the handwheel; 702, the connecting sleeve; 703, the threaded sleeve; 8, the spiral welded pipe blank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0024] A spiral welded pipe former track adaptive adjustment device includes a first support frame 1 and a second support frame 2. At the left and right ends of the bottoms of the first support frame 1 and the second support frame 2, there are moving guide rails 3. In the middle of the inner sides of the first support frame 1 and the second support frame 2, a first roller 4 and a second roller 5 are respectively rotatably connected. On the left and right sides of the first support frame 1 and the second support frame 2, limit frames 6 are rotatably connected. A double screw rod 7 is threadedly connected between the backs of the first support frame 1 and the second support frame 2 and located between two groups of limit frames 6. A spiral welded pipe blank 8 is erected between the two groups of limit frames 6.

[0025] First, a driving motor 101 is fixedly installed at the top of the front surface of the first support frame 1, and the driving end of the driving motor 101 is fixedly connected to the front end of the first roller 4. At the top of the first support frame 1 and in front of the spiral welded pipe blank 8, a baffle 102 is fixedly connected. When used in cooperation with the former, the second support frame 2 is docked with the former. The formed spiral welded pipe blank 8 is first received by the second support frame 2, the front end of the spiral welded pipe blank 8 is received by the first support frame 1, the driving motor 101 drives the first roller 4 to rotate, and the second roller 5 is assisted to rotate to drive the spiral welded pipe blank 8 to roll, assisting the former to form and subsequent welding operations.

[0026] Furthermore, a plurality of mounting seats 301 are fixedly installed at the bottoms of the two groups of moving guide rails 3. The front and rear ends of the bottoms of the first support frame 1 and the second support frame 2 are slidably connected to the moving guide rails 3 through connecting seats 302. The moving guide rails 3 are installed and fixed through the plurality of mounting seats 301. When the second support frame 2 is in use, its back surface is fixedly connected to the former. As the formed spiral welded pipe blank 8 becomes longer and longer, the front end of the spiral welded pipe blank 8 abuts against the baffle 102. After the spiral welded pipe blank 8 is lengthened, the first support frame 1 will be pushed forward. Under the sliding cooperation of the connecting seat 302 and the moving guide rail 3, the distance between the first support frame 1 and the second support frame 2 is adaptively adjusted with the length of the spiral welded pipe blank 8, so that manual movement and adjustment are not required.

[0027] Then, a support seat 303 is fixedly installed in the middle of the two groups of movable guide rails 3, a hydraulic cylinder 304 is fixedly installed on the top of the support seat 303, and an arc-shaped support plate 305 is fixedly installed on the top of the hydraulic cylinder 304. As the distance between the first support frame 1 and the second support frame 2 becomes larger and larger, the hydraulic cylinder 304 is started to push up the arc-shaped support plate 305, and the arc-shaped support plate 305 is used to support and fix the middle part of the spiral welded pipe blank 8, thereby preventing the spiral welded pipe blank 8 from bending due to lack of support in the middle part.

[0028] Furthermore, the front and rear ends of the bottom of the arc-shaped support plate 305 are fixedly connected with sliding rods 306, and the front and rear ends of the top of the hydraulic cylinder 304 are fixedly connected with connecting plates 307. The sliding rod 306 is slidably connected to the connecting plate 307. When the arc-shaped support plate 305 moves upward, it is slidably connected to the connecting plate 307 through the sliding rod 306, thereby improving the supporting stability of the arc-shaped support plate 305.

[0029] Secondly, the limit frame 6 includes a synchronous rotating shaft 601 rotatably connected to the left and right ends of the first support frame 1 and the second support frame 2, and multiple sets of swing plates 602 are fixedly connected to the outer side of the synchronous rotating shaft 601. The top of the swing plate 602 is rotatably connected to the limit roller 603, and the bidirectional screw 7 is threadedly connected to the back of the first support frame 1 and the second support frame 2 and is located between the two sets of swing plates 602. When the first support frame 1 and the second support frame 2 are used to support and roll the spiral welded pipe blank 8, the multiple sets of limit rollers 603 roll accordingly to limit the outer side of the spiral welded pipe blank 8.

[0030] Finally, the left end of the bidirectional screw 7 is fixedly connected with a hand wheel 701, and the middle of the bidirectional screw 7 is rotatably connected to the first support frame 1 and the second support frame 2 respectively through a connecting sleeve 702. The left and right ends of the bidirectional screw 7 are threadedly connected with thread sleeves 703, and the two sets of thread sleeves 703 are rotatably connected to the swing plate 602. When supporting and rolling the spiral welded pipe blanks 8 of different diameters, the hand wheel 701 is used to drive the bidirectional screw 7 to rotate, so that the two sets of screws can be rotated. The threaded sleeve 703 moves relative to each other. When the two groups of threaded sleeves 703 move relative to each other, the swing plate 602 is driven to swing. Under the connection of the synchronous rotating shaft 601, multiple groups of swing plates 602 are driven to swing synchronously, thereby adjusting the distance between the limiting roller 603 and the spiral welded pipe blank 8, so that the limiting roller 603 can adaptively adjust the diameter change of the spiral welded pipe blank 8, thereby eliminating the need to manually replace the corresponding size of the former track and eliminating the need to equip former tracks of different sizes, thereby greatly reducing the production cost.

[0031] In this embodiment, the implementation scenario is specifically as follows: When used in cooperation with a former, the second support frame 2 is docked with the former, and its back surface is connected and fixed to the former. The formed spiral welded pipe blank 8 is first received by the second support frame 2, and the front end of the spiral welded pipe blank 8 is received by the first support frame 1. The driving motor 101 drives the first roller 4 to rotate, and cooperates with the auxiliary rotation of the second roller 5 to drive the spiral welded pipe blank 8 to roll, assisting the former in forming and subsequent welding operations. As the formed spiral welded pipe blank 8 becomes longer and longer, the front end of the spiral welded pipe blank 8 abuts against the baffle 102, and the first support frame 1 will be pushed forward after the spiral welded pipe blank 8 is lengthened. Under the sliding fit of the connecting seat 302 and the moving guide rail 3, the distance between the first support frame 1 and the second support frame 2 is adaptively adjusted according to the length of the spiral welded pipe blank 8. When using the first support frame 1 and the second support frame 2 to support and roll the spiral welded pipe blank 8, a plurality of limiting rollers 603 roll along with it to limit the outer side of the spiral welded pipe blank 8. When supporting and rolling spiral welded pipe blanks 8 with different diameters, the handwheel 701 is used to drive the bidirectional screw 7 to rotate, so as to relatively move the two threaded sleeves 703. When the two threaded sleeves 703 are relatively moved, the swing plate 602 will be driven to swing. Under the connection of the synchronous rotating shaft 601, a plurality of swing plates 602 swing synchronously, so as to adjust the distance between the limiting roller 603 and the spiral welded pipe blank 8, so that the limiting roller 603 can adaptively adjust to the diameter change of the spiral welded pipe blank 8. The whole operation process is simple and convenient. Compared with the existing spiral welded pipe former track, the present utility model can be adaptively adjusted according to the length and diameter of the spiral welded pipe blank 8 through design, without the need for manual replacement of the corresponding sized former track, and at the same time, there is no need to equip different sized former tracks, greatly reducing the production cost.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A spiral welded pipe former track adaptive adjustment device, comprising a first support frame (1) and a second support frame (2), characterized in that: The first support frame (1) and the second support frame (2) are provided with movable guide rails (3) at both left and right ends of the bottom, the first support frame (1) and the second support frame (2) are rotatably connected to the first roller (4) and the second roller (5) at the middle of the inner side, respectively, the left and right sides of the first support frame (1) and the second support frame (2) are rotatably connected to the limit frame (6), the back side of the first support frame (1) and the second support frame (2) and located between the two groups of limit frames (6) are threadedly connected with a bidirectional screw (7), and a spiral welded pipe blank (8) is arranged between the two groups of limit frames (6).

2. The track self-adaptive adjustment device for a spiral welded pipe former according to claim 1, characterized in that: A driving motor (101) is fixedly mounted on the top of the front face of the first support frame (1), and the driving end of the driving motor (101) is fixedly connected to the front end of the first roller (4). A baffle (102) is fixedly connected to the top of the first support frame (1) and located at the front end of the spiral welded pipe blank (8).

3. The track self-adaptive adjustment device for a spiral welded pipe former according to claim 1, characterized in that: A plurality of mounting seats (301) are fixedly mounted at the bottom of the two sets of movable guide rails (3), and the front and rear ends of the bottom of the first support frame (1) and the second support frame (2) are slidably connected to the movable guide rails (3) via connecting seats (302).

4. The track self-adaptive adjustment device for a spiral welded pipe former according to claim 1, characterized in that: A support seat (303) is fixedly installed in the middle of the two groups of movable guide rails (3), a hydraulic cylinder (304) is fixedly installed on the top of the support seat (303), and an arc-shaped supporting plate (305) is fixedly installed on the top of the hydraulic cylinder (304).

5. The track self-adapting adjustment device for a spiral welded pipe former according to claim 4, characterized in that: The front and rear ends of the bottom of the arc-shaped supporting plate (305) are fixedly connected with a sliding rod (306), and the front and rear ends of the top of the hydraulic cylinder (304) are fixedly connected with a connecting plate (307), and the sliding rod (306) is slidably connected to the connecting plate (307).

6. The track self-adaptive adjustment device for a spiral welded pipe former according to claim 1, characterized in that: The limit frame (6) comprises a synchronous rotating shaft (601) rotatably connected to the left and right ends of the first support frame (1) and the second support frame (2); a plurality of sets of swing plates (602) are fixedly connected to the outer side of the synchronous rotating shaft (601); the top end of the swing plate (602) is rotatably connected to a limit roller (603); and the bidirectional screw (7) is threadedly connected to the back sides of the first support frame (1) and the second support frame (2) and is located between the two sets of swing plates (602).

7. The self-adaptive adjustment device for the track of a spiral welded pipe former according to claim 6, characterized in that: The left end of the bidirectional screw (7) is fixedly connected to a hand wheel (701), and the middle of the bidirectional screw (7) is rotatably connected to the first support frame (1) and the second support frame (2) respectively through a connecting sleeve (702). The left and right ends of the bidirectional screw (7) are both threadedly connected to thread sleeves (703), and the two sets of thread sleeves (703) are both rotatably connected to the swing plate (602).

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