A large-diameter steel-plastic composite pipe rounding device

Abstract

This utility model discloses a rounding device for large-diameter steel-plastic composite pipes, including a frame and a rounding mechanism. The rounding mechanism includes multiple rounding roller assemblies and multiple radial adjustment mechanisms. The number of rounding roller assemblies and radial adjustment mechanisms is the same. The multiple rounding roller assemblies are evenly distributed along the circumference and form an intermittent circular structure. The multiple radial adjustment mechanisms are respectively mounted on the frame and are also evenly distributed along the circumference. Each radial adjustment mechanism is connected to a corresponding rounding roller assembly, and each radial adjustment mechanism can drive the rounding roller assembly to move radially upward along the large-diameter steel-plastic composite pipe. The rounding roller assembly includes rounding rollers. This device has a simple structure and is easy to use. It can solve the problem of non-roundness caused by uneven material or imperfect processing technology in the production of existing steel-plastic composite pipes, thereby improving product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of steel-plastic composite pipe production equipment, specifically to a rounding device for large-diameter steel-plastic composite pipes. Background Technology

[0002] In the production process of steel-plastic composite pipes, non-roundness is a common quality problem. Non-roundness not only affects the appearance quality of the pipes, but may also lead to problems such as decreased sealing performance and reduced pressure resistance during subsequent use.

[0003] Currently, the production of steel-plastic composite pipes mainly relies on steel strip round pipes as raw materials, and the rounding device is an important piece of equipment used to adjust the shape of the pipes. However, in the existing technology, the adjustment method of the rounding device is relatively simple, usually only adjusting the pressure or speed to achieve the adjustment of the out-of-roundness, lacking precise control over the changes in the shape of the pipes.

[0004] Furthermore, existing steel-plastic composite pipe processing systems often require frequent changes to the steel strip forming mold or adjustments to its parameters when handling pipes of different sizes, resulting in low production efficiency. Therefore, there is an urgent need for a rounding device that can effectively adjust the non-roundness of steel-plastic pipes of different sizes to improve production efficiency and product quality. Summary of the Invention

[0005] Based on the above-mentioned prior art, this utility model provides a rounding device for large-diameter steel-plastic composite pipes. The device has a simple structure and is easy to use. It can solve the problem of non-roundness caused by uneven materials or imperfect processing technology in the production of existing steel-plastic composite pipes, thereby improving product quality and production efficiency.

[0006] The technical solution adopted to achieve the above-mentioned objectives of this utility model is as follows:

[0007] A rounding device for large-diameter steel-plastic composite pipes includes a frame and a rounding mechanism. The rounding mechanism includes multiple rounding roller assemblies and multiple radial adjustment mechanisms. The number of rounding roller assemblies and radial adjustment mechanisms is the same. The multiple rounding roller assemblies are evenly distributed along the circumference and form an intermittent circular structure. The multiple radial adjustment mechanisms are respectively mounted on the frame and are evenly distributed along the circumference. Each radial adjustment mechanism is connected to a corresponding rounding roller assembly, and each radial adjustment mechanism can drive the rounding roller assembly to move radially upward along the large-diameter steel-plastic composite pipe. The rounding roller assembly includes a rounding roller.

[0008] The radial adjustment mechanism includes an adjusting screw and a bearing. The adjusting screw is threadedly connected to the frame, and the bearing is installed on the inner end of the adjusting screw. The circular roller assembly also includes a roller frame, which is mounted on the bearing.

[0009] The radial adjustment mechanism also includes a handwheel, which is mounted on the outer end of the adjusting screw.

[0010] The roller frame is U-shaped, and the middle part of the roller frame is fixedly sleeved on the outer ring of the bearing.

[0011] The frame includes a circular ring, and multiple radial adjustment mechanisms are evenly distributed along the circumference of the circular ring, with each radial adjustment mechanism being movably connected to the circular ring.

[0012] Each adjusting screw passes through the entire circular ring, and each adjusting screw is threadedly connected to the entire circular ring.

[0013] The frame also includes a circular support frame, which includes a circular support frame and support rods. The circular support frame is square, and the circular ring is located inside the circular support frame. The center of the inscribed circle of the circular support frame is located on the axis of the circular ring. There are at least two support rods, which are evenly distributed along the circumference of the circular support frame. Each support rod is located between the circular support frame and the circular ring. One end of each support rod is connected to the circular support frame, and the other end of each support rod is connected to the circular ring.

[0014] The circular support also includes uprights and a base. There are two uprights, which are symmetrically distributed. The upper ends of the two uprights are symmetrically connected to the bottom of the circular support frame, and the upper ends of the two uprights are close to the two corners of the bottom of the circular support frame. The lower ends of the two uprights are fixed to the base.

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

[0016] 1. This rounding device is a multi-point contact rounding device. It applies pressure evenly to the pipe through multiple adjustable support points to ensure that the pipe is subjected to uniform force during the rounding process and to reduce out-of-roundness.

[0017] 2. This rounding device can precisely control the rounding pressure at the required rounding position, effectively reducing the out-of-roundness of the pipe and improving the product's appearance quality, sealing performance, and pressure resistance.

[0018] 3. The radial adjustment mechanism of the rounding device can adjust the distance between the rounding roller and the outer wall of the steel-plastic composite pipe, thereby realizing the rounding of steel-plastic composite pipes of different sizes and specifications, expanding the application range of the device and increasing its practicality.

[0019] 4. This rounding device can avoid manually changing the steel strip forming mold or adjusting the parameters of the steel strip forming mold, reducing the degree of manual intervention, improving production efficiency, and reducing production costs. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the circular forming device for large-diameter steel-plastic composite pipes.

[0021] Figure 2 for Figure 1 The main view.

[0022] Figure 3 This is an assembly drawing of the circular roller assembly and the radial adjustment mechanism.

[0023] Figure 4 This is a schematic diagram illustrating the use of a rounding device for large-diameter steel-plastic composite pipes.

[0024] Among them, 1-complete circular ring, 2-upright pole, 3-base, 4-complete circular support frame, 5-support rod, 6-complete circular roller, 7-roller frame, 8-adjusting screw, 9-bearing, 10-handwheel, 11-steel-plastic composite pipe. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] The structure of the rounding device for large-diameter steel-plastic composite pipes provided in this embodiment is as follows: Figure 1-2 As shown, it includes a frame and a circular mechanism, with the frame providing support for the entire device.

[0027] The frame has a symmetrical structure and includes a circular ring 1, a circular support, uprights 2, and a base 3. The base 3 can be fixed to the ground or a workbench to secure the entire device. There are two uprights 2, symmetrically distributed, and their lower ends are symmetrically connected to the base 1.

[0028] The circular support frame includes a circular support frame 4 and support rods 5. The circular support frame 4 is square. A circular ring 1 is located inside the circular support frame 4, and the center of the inscribed circle of the circular support frame 4 is located on the axis of the circular ring 1. There are four support rods 5, which are evenly distributed along the circumference of the circular support frame 4. Each support rod 5 is located between the circular support frame 4 and the circular ring 1, with one end of each support rod 5 connected to the circular support frame 4 and the other end connected to the circular ring 1. The upper ends of the two uprights 2 are symmetrically connected to the bottom of the circular support frame 4, and the upper ends of the two uprights 2 are located near the two corners of the bottom of the circular support frame 4.

[0029] The circular assembly mechanism includes eight circular roller assemblies and eight radial adjustment mechanisms, which are evenly distributed along the circumference of the circular ring 1.

[0030] Eight circular roller assemblies are evenly distributed along the circumference and form an intermittent circular structure. The axis of the circular mechanism coincides with the axis of the circular ring 1. The circular roller assembly includes a circular roller 6 and a roller frame 7. The roller frame 7 is U-shaped, and the two ends of the circular roller 6 are rotatably connected to the two sides of the roller frame 7, respectively.

[0031] like Figure 3 As shown, the radial adjustment mechanism includes adjusting screws 8, bearings 9, and handwheels 10. Each adjusting screw 8 passes through the circular ring 1 and is threadedly connected to the circular ring 1. A bearing 9 is fitted onto the inner end of each adjusting screw 8, and the center of each roller frame 7 is fixedly fitted onto the outer ring of the corresponding bearing 9, thus offsetting the rotational movement of the adjusting screw 8 through the bearings 9. Each handwheel 10 is mounted on the outer end of the corresponding adjusting screw 8; rotating the handwheel 10 rotates the adjusting screw 8, saving effort.

[0032] When the handwheel 10 is rotated, the adjusting screw 8 rotates and moves radially along the entire circular ring 1. At this time, the roller frame 7 moves radially along the entire circular ring along with the adjusting screw 8, thereby driving the entire circular roller 8 to move radially along the entire circular ring 1. Due to the presence of the bearing 9, the roller frame 7 will not rotate.

[0033] When it is necessary to round a large-diameter steel-plastic composite pipe, two rounding devices are installed on the worktable, and the positions of the eight rounding roller assemblies are adjusted so that the diameter of the discontinuous circular structure formed by the eight rounding roller assemblies matches the outer diameter of the steel-plastic composite pipe 11. Then, the steel-plastic composite pipe 11 is pulled through the two rounding devices, as shown below. Figure 4 As shown. During the production process of diameter steel-plastic composite pipes, operators will inspect the roundness of the pipes. When the roundness at a certain inspection position is found to be non-compliant, the position of the rounding roller 6 at that inspection position will be adjusted immediately. This can be done by rotating the handwheel 10 corresponding to the rounding roller 6, thereby adjusting the position of the rounding roller 6 relative to the outer wall of the steel-plastic composite pipe 11, thus adjusting the roundness of the pipe 10 at that inspection position and ensuring that the roundness of the steel-plastic composite pipe 10 meets national standards.

Claims

1. A device for rounding large-diameter steel-plastic composite pipes, characterized in that: The system includes a frame and a circular assembly mechanism. The circular assembly mechanism includes multiple circular roller assemblies and multiple radial adjustment mechanisms. The number of circular roller assemblies and radial adjustment mechanisms is the same. The multiple circular roller assemblies are evenly distributed along the circumference and form an intermittent circular structure. The multiple radial adjustment mechanisms are respectively mounted on the frame and are evenly distributed along the circumference. Each radial adjustment mechanism is connected to a corresponding circular roller assembly, and each radial adjustment mechanism can drive the circular roller assembly to move radially upward along the large-diameter steel-plastic composite pipe. The circular roller assembly includes a circular roller.

2. The device for rounding the large diameter steel plastic composite pipe according to claim 1, characterized in that: The radial adjustment mechanism includes an adjusting screw and a bearing. The adjusting screw is threadedly connected to the frame, and the bearing is installed on the inner end of the adjusting screw. The circular roller assembly also includes a roller frame, which is mounted on the bearing.

3. The device for rounding the large diameter steel-plastic composite pipe according to claim 2, characterized in that: The radial adjustment mechanism also includes a handwheel, which is mounted on the outer end of the adjusting screw.

4. The device for rounding the large diameter steel-plastic composite pipe according to claim 2, characterized in that: The roller frame is U-shaped, and the middle part of the roller frame is fixedly sleeved on the outer ring of the bearing.

5. The device for rounding the large diameter steel-plastic composite pipe according to any one of claims 1 or 2, characterized in that: The frame includes a circular ring, and multiple radial adjustment mechanisms are evenly distributed along the circumference of the circular ring, with each radial adjustment mechanism being movably connected to the circular ring.

6. The device for rounding large diameter steel-plastic composite pipes according to claim 4, characterized in that: Each adjusting screw passes through the entire circular ring, and each adjusting screw is threadedly connected to the entire circular ring.

7. The device for rounding large diameter steel-plastic composite pipes according to claim 4, characterized in that: The frame also includes a circular support frame, which includes a circular support frame and support rods. The circular support frame is square, and the circular ring is located inside the circular support frame. The center of the inscribed circle of the circular support frame is located on the axis of the circular ring. There are at least two support rods, which are evenly distributed along the circumference of the circular support frame. Each support rod is located between the circular support frame and the circular ring. One end of each support rod is connected to the circular support frame, and the other end of each support rod is connected to the circular ring.

8. The device for rounding large diameter steel-plastic composite pipes according to claim 7, characterized in that: The circular support also includes uprights and a base. There are two uprights, which are symmetrically distributed. The upper ends of the two uprights are symmetrically connected to the bottom of the circular support frame, and the upper ends of the two uprights are close to the two corners of the bottom of the circular support frame. The lower ends of the two uprights are fixed to the base.

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