Pipe out-of-roundness correction tool

Abstract

The utility model provides a pipe out-of-roundness correction tool which is installed at the outlet end of a spraying box and comprises a correction assembly and an installation circular ring, and the installation circular ring is installed on the end face of the spraying box through a supporting rod. The two correction assemblies are symmetrically arranged on the mounting ring, and the pipe is sprayed out and passes through the space between the two correction assemblies, so that correction of the out-of-roundness of the pipe is achieved. The non-roundness correcting device is directly installed on a spraying box, the non-roundness correction can be completed after the pipes are sprayed out, the non-roundness problem is solved in production, rapidness and high efficiency are achieved, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the field of pipe production, in particular to a pipe out-of-roundness correction tool. Background Art

[0002] During the plastic pipe production process, insufficient cooling often results in the melt inside the pipe remaining fluid after the production process is complete. Under the influence of gravity, this can cause a certain deviation between the maximum and minimum cross-sectional diameters, resulting in high out-of-roundness. This problem is particularly prevalent in large-diameter pipes. Pipes with out-of-roundness exceeding the standard must be downgraded or scrapped, reducing the pipe's pass rate, seriously affecting pipe quality and production costs, and hindering the product's subsequent sales and use. Furthermore, high out-of-roundness can also affect pipe welding. Due to high out-of-roundness, the pipe connection is not tight enough, resulting in reduced weld quality.

[0003] In the existing technology, the only solutions for out-of-roundness are detection devices and correction tools after production. If a high out-of-roundness problem occurs, corrections must be made at different positions after the tube is formed. This consumes too much time and manpower, and it is impossible to quickly adjust and correct the out-of-roundness during the production process. Utility Model Content

[0004] In view of this, the present invention aims to provide a pipe out-of-roundness correction tool, which can effectively avoid the problem of high out-of-roundness during the pipe production process.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A pipe out-of-roundness correction tool is installed at the outlet end of a spray box, comprising a correction component and a mounting ring. The mounting ring is mounted to the end face of the spray box via a support rod. Two correction components are symmetrically arranged on the mounting ring. When the pipe comes out of the spray, it passes between the two correction components to correct the out-of-roundness of the pipe.

[0007] Furthermore, the correction assembly includes a correction fixture, an articulated frame, a fixed frame and an adjusting screw;

[0008] The correction fixture is mounted on the articulated frame via a rotating shaft, and the articulated frame is mounted on the fixed frame via an articulated rod. The articulated frame can rotate relative to the fixed frame; the fixed frame is fixedly mounted on the mounting ring;

[0009] The fixing frame is provided with a rotating plate, the hinged frame is provided with a rotating rod, one end of the adjusting screw is connected to the rotating rod through a hinge, and the other end of the adjusting screw passes through the rotating plate and is connected to the rotating plate through a nut seat.

[0010] Furthermore, the correction fixture is a concave roller.

[0011] Furthermore, the axis of the rotating rod is parallel to the axis of the rotating shaft; and the rotating plate can rotate relative to the fixing frame.

[0012] Furthermore, the inner diameter of the mounting ring is larger than the inner diameter of the discharge port of the spray box; the mounting ring is mounted to the end face of the spray box through four evenly distributed support rods.

[0013] Furthermore, the mounting ring is provided with a plurality of adjustment holes; the fixing frame is installed in the adjustment holes of the mounting ring through an adjustment plate, and the adjustment plate is provided with an oblong hole.

[0014] Furthermore, the fixing frame is installed on the mounting ring at an angle, and the inclination angle between the fixing frame and the mounting ring is 30°-60°.

[0015] Compared with the prior art, the pipe out-of-roundness correction tool described in the present invention has the following advantages:

[0016] (1) The utility model provides a tool for correcting the out-of-roundness of pipes, which is directly mounted on the spray box. The out-of-roundness of the pipes can be corrected after they are sprayed, thereby solving the out-of-roundness problem in production quickly and efficiently, and improving product quality.

[0017] (2) The utility model provides a pipe out-of-roundness correction tool, which can adjust the position of the fixing frame 360 degrees and adjust the position of the pipe out-of-roundness at any time.

[0018] The distance between the two correction fixtures can also be adjusted to adapt to pipes of different diameters and can be adjusted flexibly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of a pipe out-of-roundness correction tool according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the adjustment plate described in an embodiment of the present utility model.

[0022] Description of reference numerals:

[0023] 1. Correction assembly; 11. Correction fixture; 12. Articulated frame; 121. Rotating rod; 13. Fixed frame; 131. Rotating plate; 14. Adjusting screw; 15. Hinge; 16. Nut seat; 2. Mounting ring; 21. Adjusting plate; 3. Spray box. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] A pipe out-of-roundness correction tool is installed at the outlet end of the spray box 3, such as Figure 1 As shown, it includes a correction component 1 and a mounting ring 2, and the mounting ring 2 is installed to the end face of the spray box 3 through a support rod; the mounting ring 2 is symmetrically provided with two correction components 1, and the pipe comes out of the spray and passes between the two correction components to correct the out-of-roundness of the pipe.

[0029] Preferably, the correction assembly 1 includes a correction fixture 11, an articulated frame 12, a fixed frame 13 and an adjusting screw 14;

[0030] The correction fixture 11 is mounted on the articulated frame 12 via a rotating shaft, and the articulated frame 12 is mounted on the fixed frame 13 via a hinged rod. The articulated frame 12 can rotate relative to the fixed frame 13; the fixed frame 13 is fixedly mounted on the mounting ring 2;

[0031] A rotating plate 131 is provided on the fixed frame 13, and a rotating rod 121 is provided on the articulated frame 12. One end of the adjusting screw 14 is connected to the rotating rod 121 through a hinge 15, and the other end of the adjusting screw 14 passes through the rotating plate 131 and is connected to the rotating plate 131 through a nut seat 16; by adjusting the adjusting screw 14, the distance between the two correction clamps 11 can be changed to adapt to pipes of different sizes and improve the quality of correcting out-of-roundness.

[0032] Preferably, the correction fixture 11 is a concave roller that fits the pipe to complete the repair of the out-of-roundness.

[0033] Preferably, the axis of the rotating rod 121 is parallel to the axis of the rotating shaft; and the rotating plate 131 is capable of rotating relative to the fixing frame 13 .

[0034] Preferably, the inner diameter of the mounting ring 2 is larger than the inner diameter of the discharge port of the spray box 3; the mounting ring 2 is mounted to the end face of the spray box 3 via four evenly distributed support rods.

[0035] Preferably, the mounting ring 2 is provided with a plurality of adjustment holes; the fixing frame 13 is installed in the adjustment holes of the mounting ring 2 through an adjustment plate, and the adjustment plate is provided with an oblong hole; such a design allows the fixture to rotate 360°, and the connection position of the connecting frame and the spray box 3 is changed according to the position of the out-of-roundness, and the position of the fixture is further changed to solve the out-of-roundness at different positions and make corrections in a targeted manner.

[0036] Preferably, the fixing frame 13 is installed on the mounting ring 2 at an angle, and the angle of inclination between the fixing frame 13 and the mounting ring 2 is 30°-60°, so that the two correction fixtures 11 can be effectively matched.

[0037] During use, the staff will use a handheld ultrasonic wave to measure the pipe to determine the two points with higher out-of-roundness, and use this as a basis to adjust the position of the correction fixture 11; the pipe will pass through the fixture after passing through the spray box 3, and the position between the two fixtures is equal to the outer diameter of the pipe, so the out-of-roundness of the pipe can be effectively corrected, and there is no need to perform out-of-roundness correction separately after production is completed; the 360° rotating fixture facilitates quick adjustment and correction of out-of-roundness, reduces fluctuations in the outer diameter of the pipe, is beneficial to the debugging of the pipe, and at the same time ensures the pipe weight saving rate per meter to reduce manufacturing costs.

[0038] By reducing the out-of-roundness, the quality of the pipe can be effectively improved, the qualified rate of the pipe can be further improved, and the operation of the hot-melt connection of the pipe can be made easier, thus avoiding the occurrence of connection defects.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipe out-of-roundness correction tool, installed at the outlet end of the spray box, characterized by: It includes a correction component and a mounting ring, and the mounting ring is installed to the end face of the spray box through a support rod; the mounting ring is symmetrically provided with two correction components, and the pipe passes between the two correction components when it comes out of the spray, so as to correct the out-of-roundness of the pipe.

2. The pipe out-of-roundness correction tool according to claim 1, characterized in that: The correction assembly includes a correction fixture, an articulated frame, a fixed frame and an adjusting screw; The correction fixture is mounted on the articulated frame via a rotating shaft, and the articulated frame is mounted on the fixed frame via an articulated rod. The articulated frame can rotate relative to the fixed frame; the fixed frame is fixedly mounted on the mounting ring; The fixing frame is provided with a rotating plate, the hinged frame is provided with a rotating rod, one end of the adjusting screw is connected to the rotating rod through a hinge, and the other end of the adjusting screw passes through the rotating plate and is connected to the rotating plate through a nut seat.

3. The pipe out-of-roundness correction tool according to claim 2, characterized in that: The correction fixture is a concave roller.

4. The pipe out-of-roundness correction tool according to claim 2, characterized in that: The axis of the rotating rod is parallel to the axis of the rotating shaft; and the rotating plate can rotate relative to the fixing frame.

5. The pipe out-of-roundness correction tool according to claim 1, characterized in that: The inner diameter of the mounting ring is larger than the inner diameter of the discharge port of the spray box; the mounting ring is mounted to the end face of the spray box through four evenly distributed support rods.

6. The pipe out-of-roundness correction tool according to claim 2, characterized in that: The mounting ring is provided with a plurality of adjustment holes; the fixing frame is installed in the adjustment holes of the mounting ring through an adjustment plate, and the adjustment plate is provided with an oblong hole.

7. The pipe out-of-roundness correction tool according to claim 2, characterized in that: The fixing frame is installed on the mounting ring at an angle, and the inclination angle between the fixing frame and the mounting ring is 30°-60°.

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