An irregularly shaped pipe forming roll die

Abstract

The utility model relates to special-shaped welded pipe forming technical field, concretely relates to a special-shaped welded pipe forming roll mould, including the bottom die, the bottom die side assembly has the clamping mechanism, the clamping mechanism includes the fixed link, the fixed link fixed connection in the bottom die side, the fixed link outer wall sliding connection has the connecting block, the connecting block side fixed connection has the connecting rod, the connecting rod side rotates and is connected with first rotating disc through bearing, the first rotating disc side sets up the slide groove, before opening the clamp, the chute rotates clockwise, pushes the spacing rod to rise, the clamping plate moves up and opens, forms the pipe channel, before closing the clamp, the chute rotates counterclockwise, pulls the spacing rod to descend, the clamping plate closes down, and the self -adaptation pipe material outer wall is closed, completely avoids the dependence on the pipe material inner diameter tolerance, realizes the stable fixation of arbitrary diameter pipe material through the external clamping, thoroughly solves the sealing failure problem caused by the inner diameter deviation of the conical rubber plug.

Description

Technical Field

[0001] This utility model relates to the field of irregular welded pipe forming technology, specifically to an irregular welded pipe forming roll mold. Background Technology

[0002] Welded steel pipes, also known as welded pipes, are steel pipes made by rolling steel plates or strips into shape and then welding them. The production process of welded steel pipes is simple, the production efficiency is high, there are many varieties and specifications, and the equipment investment is low. With the rapid development of high-quality strip continuous rolling production and the progress of welding and inspection technologies, the quality of welds has been continuously improved, the variety and specifications of welded steel pipes have been increasing, and they have replaced seamless steel pipes in more and more fields.

[0003] Patent document CN222307031U discloses a forming roll mold for irregularly shaped welded pipes, including an upper base, a lower base, an upper mold, and a lower mold. Both the upper and lower molds have cavities inside. The upper mold is fixed to the surface of the upper base, and the lower mold is fixed to the surface of the lower base. A positioning rod is movably mounted on the side of the lower mold via a traction mechanism. This invention features laterally movable positioning rods on both sides of the upper and lower bases. These positioning rods allow the upper and lower molds to move closer together during mold closing, thereby squeezing one end of the pipe with a conical rubber plug at one end of the positioning rod, fixing the pipe within the cavity and achieving pipe positioning. Furthermore, because the positioning rods are hollow, they do not interfere with the filling of the pipe with high-pressure liquid from an external pipeline, preventing significant errors caused by pipe misalignment during roll forming and ensuring that the processed irregularly shaped parts match the desired product.

[0004] Although the aforementioned application documents can prevent the pipe from having large errors due to offset during roll forming, so that the processed irregular parts are consistent with the required product, the tapered design is sensitive to the pipe's inner diameter tolerance. If the inner diameter deviation of the pipe is large, it cannot effectively fix the pipe.

[0005] Therefore, a special-shaped welded pipe forming roll mold is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a special-shaped welded pipe forming roll mold, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: including a bottom mold, wherein a clamping mechanism is assembled on the side of the bottom mold;

[0008] The clamping mechanism includes a fixed rod, which is fixedly connected to the side of the bottom mold. A connecting block is slidably connected to the outer wall of the fixed rod, and a connecting rod is fixedly connected to the side of the connecting block. A first turntable is rotatably connected to the side of the connecting rod via a bearing. A sliding groove is provided on the side of the first turntable, and a slider is slidably connected to the inner wall of the sliding groove. A clamping plate is fixedly connected to the side of the slider. A limit rod is fixedly connected to the inner wall of the clamping plate, and a limit plate is slidably connected to the outer wall of the limit rod. A drive assembly is assembled on the outer wall of the limit plate.

[0009] Preferably, the drive assembly includes a gear ring, which is fixedly sleeved on the outer wall of the limiting plate. A rotating rod is rotatably connected to the side of the connecting rod via a bearing. A spherical gear is fixedly sleeved on the outer wall of the rotating rod. A motor is fixedly connected to the side of the connecting rod.

[0010] Preferably, the bottom mold has a groove on its side, and an electric telescopic rod is fixedly connected to the inner wall of the groove. The output end of the electric telescopic rod is fixedly connected to the side of the connecting block.

[0011] Preferably, the rotating rod movably passes through the connecting rod, the extension end of the rotating rod extends to the right side of the connecting rod, and the extension end of the rotating rod is fixedly connected to the motor output end.

[0012] Preferably, the spur gear meshes with the gear ring.

[0013] Preferably, the bottom mold has a groove at the top for accommodating the pipe.

[0014] Preferably, the bottom mold has a circular groove on its side for the motor to slide, and a top mold is fitted on the top of the bottom mold.

[0015] Compared with the prior art, this utility model provides a special-shaped welded pipe forming roll mold, which has the following beneficial effects:

[0016] 1. Before clamping, the inclined groove rotates clockwise, pushing the limit rod upward and the clamping plate moves up and opens to form a pipe passage. Before clamping, the inclined groove rotates counterclockwise, pulling the limit rod downward and the clamping plate presses down to close, adaptively covering the outer wall of the pipe, completely avoiding dependence on the inner diameter tolerance of the pipe. Stable fixation of pipes of any diameter is achieved through external clamping, completely solving the sealing failure problem caused by the inner diameter deviation of the conical rubber plug.

[0017] 2. The electric telescopic rod pushes the connecting rod to move horizontally, and the fixed rod constrains the axial degree of freedom of the pipe. When the clamping plate descends, the slider is guided down along the slide groove to evenly distribute the clamping force. The pipe is locked in the axial and radial directions at the same time, avoiding deformation or displacement caused by the movement of the pipe during the rolling process. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the left side of a portion of the structure of this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the left side of a portion of the structure of this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of part of the structure of this utility model on the right.

[0022] In the diagram: 1. Bottom mold; 2. Clamping mechanism; 21. Fixed rod; 22. Connecting block; 23. Connecting rod; 24. First turntable; 25. Slide groove; 26. Slider; 27. Clamping plate; 28. Limiting rod; 29. ​​Limiting plate; 210. Gear ring; 211. Rotating rod; 212. Circular gear; 213. Motor; 3. Electric telescopic rod; 4. Top mold; 5. Circular groove; 6. Groove. Detailed Implementation

[0023] 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.

[0024] Example

[0025] See Figures 1-4 This embodiment provides a special-shaped welded pipe forming roll mold, including a bottom mold 1, and a clamping mechanism 2 is assembled on the side of the bottom mold 1;

[0026] The clamping mechanism 2 includes a fixed rod 21, which is fixedly connected to the side of the bottom mold 1. A connecting block 22 is slidably connected to the outer wall of the fixed rod 21. A connecting rod 23 is fixedly connected to the side of the connecting block 22. A first turntable 24 is rotatably connected to the side of the connecting rod 23 via a bearing. A groove 25 is provided on the side of the first turntable 24. A slider 26 is slidably connected to the inner wall of the groove 25. A clamping plate 27 is fixedly connected to the side of the slider 26. A limit rod 28 is fixedly connected to the inner wall of the clamping plate 27. A limit plate 29 is slidably connected to the outer wall of the limit rod 28. A drive assembly is assembled on the outer wall of the limit plate 29.

[0027] The drive assembly includes a gear ring 210, which is fixedly sleeved on the outer wall of the limiting plate 29. A rotating rod 211 is rotatably connected to the side of the connecting rod 23 via a bearing. A spur gear 212 is fixedly sleeved on the outer wall of the rotating rod 211. A motor 213 is fixedly connected to the side of the connecting rod 23.

[0028] The bottom mold 1 has a groove 6 on its side, and an electric telescopic rod 3 is fixedly connected to the inner wall of the groove 6. The output end of the electric telescopic rod 3 is fixedly connected to the side of the connecting block 22.

[0029] The rotating rod 211 movably passes through the connecting rod 23, and the extended end of the rotating rod 211 extends to the right side of the connecting rod 23. The extended end of the rotating rod 211 is fixedly connected to the output end of the motor 213.

[0030] The circular gear 212 meshes with the gear ring 210.

[0031] The bottom mold 1 has a groove at the top for accommodating the pipe.

[0032] The bottom mold 1 has a circular groove 5 on its side for the motor 213 to slide, and a top mold 4 is fitted on the top of the bottom mold 1.

[0033] In practical use, the above-mentioned equipment is activated by starting motor 213, which drives rotating rod 211 to rotate. Rotating rod 211 drives spur gear 212 to rotate, spur gear 212 drives gear ring 210 to rotate, and gear ring 210 drives limiting plate 29 to rotate. Limiting plate 29 drives limiting rod 28 to slide on the bottom of the inner wall of the inclined groove through the inclined groove. When the inclined groove rotates clockwise, it drives limiting rod 28 to rise. The rise of limiting rod 28 drives clamping plate 27 to rise. Clamping plate 27 drives slider 26 to slide on the inner wall of sliding groove 25. Clamping plate 27 opens, allowing the pipe to pass through the inner walls of the two connecting rods 23. The electric telescopic rod 3 is then activated, causing connecting block 22 to move to the right. When the connecting block 22 moves, the connecting rod 23 moves to the right. The connecting rod 23 is limited by two fixed rods 21. The motor 213 drives the rotating rod 211 to rotate. The rotating rod 211 drives the spur gear 212 to rotate. The spur gear 212 drives the gear ring 210 to rotate. The gear ring 210 drives the limiting plate 29 to rotate. The limiting plate 29 drives the limiting rod 28 to slide on the top of the inner wall of the inclined groove through the inclined groove. When the inclined groove rotates counterclockwise, it drives the limiting rod 28 to descend. The descending of the limiting rod 28 drives the clamping plate 27 to descend. The clamping plate 27 drives the slider 26 to slide on the inner wall of the sliding groove 25 to fix the pipe. Then the top mold 4 is started. The top mold 4 descends to cooperate with the bottom mold 1 to close the mold.

[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0035] 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 forming roll mold for irregularly shaped welded pipes, characterized in that: Includes a bottom mold (1), and a clamping mechanism (2) is assembled on the side of the bottom mold (1); The clamping mechanism (2) includes a fixed rod (21), which is fixedly connected to the side of the bottom mold (1). A connecting block (22) is slidably connected to the outer wall of the fixed rod (21). A connecting rod (23) is fixedly connected to the side of the connecting block (22). A first turntable (24) is rotatably connected to the side of the connecting rod (23) via a bearing. A groove (25) is provided on the side of the first turntable (24). A slider (26) is slidably connected to the inner wall of the groove (25). A clamping plate (27) is fixedly connected to the side of the slider (26). A limit rod (28) is fixedly connected to the inner wall of the clamping plate (27). A limit plate (29) is slidably connected to the outer wall of the limit rod (28). A drive assembly is assembled on the outer wall of the limit plate (29).

2. The irregular welded pipe forming roll mold according to claim 1, characterized in that: The drive assembly includes a gear ring (210), which is fixedly sleeved on the outer wall of the limiting plate (29). A rotating rod (211) is rotatably connected to the side of the connecting rod (23) via a bearing. A spherical gear (212) is fixedly sleeved on the outer wall of the rotating rod (211). A motor (213) is fixedly connected to the side of the connecting rod (23).

3. The shaped welded pipe forming roll mold according to claim 2, characterized in that: The bottom mold (1) has a groove (6) on its side, and an electric telescopic rod (3) is fixedly connected to the inner wall of the groove (6). The output end of the electric telescopic rod (3) is fixedly connected to the side of the connecting block (22).

4. The shaped welded pipe forming roll mold according to claim 3, characterized in that: The rotating rod (211) extends through the connecting rod (23), and the extended end of the rotating rod (211) extends to the right side of the connecting rod (23). The extended end of the rotating rod (211) is fixedly connected to the output end of the motor (213).

5. The shaped welded pipe forming roll mold according to claim 2, characterized in that: The spur gear (212) meshes with the gear ring (210).

6. The shaped welded pipe forming roll mold according to claim 1, characterized in that: The bottom mold (1) has a groove at the top for accommodating the pipe.

7. The shaped welded pipe forming roll mold according to claim 2, characterized in that: The bottom mold (1) has a circular groove (5) on its side for the motor (213) to slide, and a top mold (4) is fitted on the top of the bottom mold (1).

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