Shaping adjusting piece for improving out-of-roundness of pipe

Abstract

The utility model discloses a shaping adjusting piece for improving the out-of-roundness of a pipe, which comprises a first circle supporting piece and a second circle supporting piece which are arranged back to back, and the first circle supporting piece and the second circle supporting piece are connected through an adjusting connecting rod; limiting steps are arranged at the top ends of the first circle supporting piece and the second circle supporting piece and face the outer side. A curved surface structure is arranged below the limiting step, a guide cone is arranged at the bottom end of the curved surface structure, and the bottom end of the guide cone inclines towards the adjusting connecting rod. The curved surfaces of the first circle supporting piece and the second circle supporting piece make contact with the inner wall of the pipe, the limiting step is clamped at the end of the pipe, assembling and taking are convenient, the shaping adjusting piece is prevented from falling off, stepless adjustment of the pipe can be achieved by arranging the adjusting connecting rod, and compared with batten construction of a traditional technology, the batten construction is more convenient and rapid, and products cannot be damaged; the first circle supporting piece and the second circle supporting piece are integrally formed, the pipe can be adjusted only by arranging the adjusting block, the structure is simple, and cost is low.

Description

Technical Field

[0001] This utility model relates to the field of pipe trimming technology, specifically a shaping and adjusting component for improving the roundness of pipes. Background Technology

[0002] During the production of plastic pipe fittings, unreasonable gate structure design, defects in molding process, or other reasons may lead to non-roundness in the pipe fittings. This is especially true for pipe fittings made from materials with good toughness but poor rigidity, which are more prone to this problem when the wall thickness is thin. From the perspective of pipe fitting structure, straight pipes are relatively uniform and less prone to non-roundness. However, for products like tees, the presence of a branch port disperses the material flow and pressure during molding, resulting in differences in the density of the pipe fitting itself. After the material cools and crystallizes, non-roundness is more likely to form.

[0003] To address such issues, if the mold or process cannot be easily adjusted, such as with older molds that cannot be significantly adjusted or repaired, the roundness can be corrected through post-processing shaping. For example, some manufacturers use material handles or wooden sticks as shaping tools. While this can adjust the roundness, the concentrated force at both ends of the stick or handle during adjustment can damage the internal structure of the pipe. Although the pipe becomes round, scars or dents may remain at the two support points. While existing pipe rounding devices exist, most are complex in structure, difficult to carry, and require complex processing and installation.

[0004] Chinese Patent Publication No. CN215355448U, Publication Date: December 31, 2021, discloses a utility model entitled "A Pipe Fitting Shaping Fixture." This utility model discloses a pipe fitting shaping fixture, comprising several shaping components, each with a convex arc-shaped shaping surface; it also includes a mounting cylinder and a mandrel. The side wall of the mounting cylinder has several mounting holes spaced circumferentially and corresponding to the shaping components. The shaping components are movably inserted into their respective mounting holes along the radial direction of the mounting cylinder, with the shaping surface of each component located outside the mounting cylinder and the end of each component facing away from its shaping surface located inside the mounting cylinder. The mandrel passes through the mounting cylinder and pushes or releases the shaping components radially in the mounting cylinder by axial movement. This fixture requires multiple components, has a complex structure, is inconvenient to process and assemble, and is costly. Utility Model Content

[0005] This utility model provides a shaping and adjusting component for improving the roundness of pipes. By setting a first rounding support, a second rounding support, and an adjusting rod, it solves the problems of difficulty in controlling or over-controlling the roundness when using a material handle or wooden stick as an adjusting component, which may cause certain damage to the product itself. It can more effectively and quickly improve the roundness of pipes.

[0006] A further objective of this invention is to provide an integrally formed first and second support member, which can be adjusted simply by rotating the adjustment block. This results in a simple structure, convenient processing and assembly, and reduced costs.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a shaping and adjusting component for improving the roundness of pipes, comprising a first and second supporting rounding components arranged opposite to each other, connected by an adjusting rod; the top ends of the first and second supporting rounding components are provided with limiting steps facing outwards; an adjusting block is fixedly sleeved on the adjusting rod, and the two ends of the adjusting rod are provided with threaded structures in opposite directions. The curved surfaces of the first and second supporting rounding components contact the inner wall of the pipe, and the limiting steps are engaged at the end of the pipe for easy installation and removal, preventing the shaping and adjusting component from falling off. By setting the adjusting rod, stepless adjustment of the pipe can be achieved, which is more convenient than the traditional wooden strip construction process and will not damage the product. The first and second supporting rounding components are integrally formed, and only the adjusting block is needed to adjust the pipe, resulting in a simple structure and low cost.

[0008] Preferably, the adjusting block is a metal nut, and a curved structure is provided below the limiting steps of the first and second supporting rounding parts. The adjusting block is fixedly sleeved at the center of the adjusting connecting rod, which is used to facilitate the rotation of the adjusting connecting rod. The difference in the threads at both ends of the adjusting connecting rod allows both sides to be simultaneously locked or loosened when the threads are tightened in one direction. The curved structure design allows for a larger stress surface when supporting the pipe or fitting, thereby reducing pressure, avoiding stress concentration, and preventing damage to the surface of the pipe or fitting. This not only effectively protects the appearance integrity of the pipe during the shaping process, reduces surface defects caused by shaping, and improves the product yield, but also allows the larger stress surface distribution to act more evenly on the inner wall of the pipe, enabling more precise adjustment of the pipe's out-of-roundness, improving the stability and consistency of the shaping effect, and further enhancing the quality and performance of the pipe.

[0009] Preferably, the bottom of the curved structure is provided with a guide cone, which is located on the side of the first and second support members away from the adjusting connecting rod. The guide cone design allows for easier insertion of the shaping and adjusting member into the pipe or fitting. This greatly improves operational convenience and efficiency, reduces the risk of scratching the inner wall of the pipe during insertion, and also reduces the labor intensity of operators. It improves production efficiency and economic benefits, and helps ensure that the inner surface quality of the pipe is not affected by the insertion process.

[0010] Preferably, the bottom end of the guide cone is inclined towards the adjusting rod, and the outer side of the guide cone is curved. This design allows the guide cone to better conform to the inner wall shape of the pipe when inserted, further reducing insertion resistance and minimizing damage to the pipe. It also prevents jamming or collision with the inner wall of the pipe during insertion or adjustment, ensuring the smoothness and stability of the shaping process. This makes the adjustment of the pipe's out-of-roundness more stable and precise, improving the processing accuracy and quality stability of the product, and facilitating the production of high-quality, high-standard pipe products.

[0011] Preferably, the first and second support members have mounting seats near their inner sides, and the width of the mounting seats is smaller than the width of the curved structure. The mounting seats and the curved structure form a stepped structure. The mounting seats are used to mount the adjusting rod and the support rod.

[0012] Preferably, the mounting base of the first support member has a first threaded hole on its opposite side, and the mounting base of the second support member has a second threaded hole on its opposite side. The threads in the first and second threaded holes are in opposite directions. The first threaded hole is used to install and mate with the threaded structure at one end of the adjusting rod. The second threaded hole is used to install and mate with the threaded structure at the other end of the adjusting rod. This design with opposite thread directions allows the adjusting rod to simultaneously drive the first and second support members to move in opposite directions or towards each other when rotating, achieving precise roundness adjustment of the pipe. Compared with the traditional single-direction adjustment method, this bidirectional adjustment mechanism can adapt to the non-roundness of different pipes more quickly and accurately, improve adjustment efficiency and accuracy, reduce adjustment time and labor costs, and better ensure uniform force on the pipe in the circumferential direction, avoiding uneven pipe deformation caused by uneven force, and improving the overall roundness quality and appearance consistency of the pipe.

[0013] Preferably, a first mounting hole is provided below the first threaded hole, and a second mounting hole is provided below the second threaded hole. The first and second mounting holes are used to install the support rod. The support rod significantly enhances the support capacity of the shaping and adjusting component, enabling it to better withstand the reaction force during the rounding process. This avoids deformation or displacement of the shaping and adjusting component due to insufficient support force, ensuring the stability and accuracy of the rounding process. This helps improve the shaping accuracy and quality stability of the pipe, reduces the scrap rate caused by equipment instability, extends the service life of the shaping and adjusting component, reduces maintenance costs and replacement frequency, and improves the economic benefits and production efficiency of production.

[0014] Preferably, a support rod is provided below the adjusting rod, with the first mounting hole and the second mounting hole connected to both ends of the support rod, respectively. The support rod increases the stability of the shaping and adjusting component, preventing insufficient support due to the adjusting rod alone, thus enabling the shaping and adjusting component to achieve better results. The support rod greatly enhances the overall stability of the shaping and adjusting component. During the process of adjusting the roundness of the pipe, especially for larger, heavier, or harder pipes, the support rod can effectively distribute the pressure and tension borne by the adjusting rod, preventing the adjusting rod from bending, deforming, or even breaking due to uneven force or overload. This not only ensures the reliability of the shaping and adjusting component under long-term, high-intensity working conditions, extending its service life and reducing the increased production costs and decreased production efficiency caused by frequent replacement of equipment parts, but also provides a solid foundation for precise shaping operations, ensuring that each rounding action of the pipe is executed stably and accurately, thereby significantly improving the shaping accuracy and quality consistency of the pipe.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a shaping and adjusting component for improving the roundness of pipes. By setting a first rounding support, a second rounding support, and an adjusting rod, it solves the problems of difficulty in controlling or over-controlling the roundness when using a material handle or wooden stick as an adjusting component, which can cause damage to the product itself. It is easier to insert into the pipe for adjustment and more effectively and quickly improves the roundness of the pipe fitting. By setting an integrally formed first and second rounding support, and adjusting only by rotating the adjusting block, the structure is simple, easy to process and assemble, reduces costs, and enables stepless adjustment of the pipe's roundness, making it more convenient. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention.

[0017] Figure 2 This is a structural diagram of the first supporting circular component of this utility model.

[0018] Figure 3 This is a front view of the adjusting linkage and adjusting component of this utility model.

[0019] Figure 4 This is a cross-sectional view of the second support circular component of this utility model.

[0020] Reference numerals in the attached drawings: 1: First support member; 1.1: Limiting step; 1.2: Curved surface structure; 1.3: Guide cone; 1.4: Mounting base; 1.5: First threaded hole; 1.6: First mounting hole; 2: Second support member; 2.1: Second threaded hole; 2.2: Second mounting hole; 3: Adjusting rod; 3.1: First threaded structure; 3.2: Second threaded structure; 4: Adjusting block; 5: Support rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1 and Figure 3 As shown, the shaping and adjusting component for improving pipe roundness of this utility model mainly consists of three key parts: a first rounding support 1, a second rounding support 2, and an adjusting rod 3. These components work together to efficiently, accurately, and non-destructively improve the roundness of pipes, providing an innovative and practical solution for the pipe processing industry. The first rounding support 1 and the second rounding support 2 are arranged back-to-back. This arrangement allows them to simultaneously apply rounding force to the pipe from both sides of its interior, effectively correcting the roundness. They are connected by the adjusting rod 3, which plays a crucial role in the entire shaping process as a key component for transmission and adjustment. A limiting step 1.1 is provided at the top of the first rounding support 1 and the second rounding support 2, facing outwards. This design has multiple functions. On the one hand, it facilitates the installation and removal of the shaping adjustment component on the pipe. Operators only need to align the limiting step 1.1 with the pipe end and gently insert it to quickly complete the installation, greatly improving work efficiency. On the other hand, during the pipe shaping process, the limiting step 1.1 effectively prevents the shaping adjustment component from falling off the pipe end due to various external forces, ensuring the continuity and stability of the shaping operation and avoiding problems such as pipe damage or shaping failure caused by the adjustment component falling off. An adjusting block 4 is fixedly sleeved on the adjusting rod 3. The adjusting block 4, as the interaction component between the operator and the adjusting rod 3, directly affects the convenience of operation and the accuracy of adjustment due to its design and placement. The adjusting rod 3 has a first thread structure 3.1 / 3.1 and a second thread structure 3.2 with opposite directions at both ends. This unique design is the core of achieving stepless adjustment of the pipe. By rotating the adjusting block 4, the adjusting rod 3 can drive the first round support 1 and the second round support 2 to move in opposite directions or away from each other according to the transmission principle of the thread, thereby accurately adjusting the round support force applied to the inner wall of the pipe and achieving precise control of the pipe's out-of-roundness.

[0023] like Figure 3As shown, the adjusting block 4 is preferably a metal nut, a material with high strength and wear resistance, capable of withstanding frequent rotation without damage. The adjusting block 4 is fixedly sleeved at the center of the adjusting rod 3. This design allows the operator to transmit rotational force to the adjusting rod 3 more effortlessly and evenly when rotating the adjusting block 4, thus ensuring that the first rounding member 1 and the second rounding member 2 can perform adjustment smoothly and synchronously. When the operator rotates the adjusting block 4 clockwise or counterclockwise, the first thread structure 3.1 and the second thread structure 3.2 at both ends of the adjusting rod 3 will, according to their opposite thread directions, cause the first rounding member 1 and the second rounding member 2 to simultaneously tighten inward or expand outward, achieving stepless rounding adjustment of the pipe. Compared to traditional fixed-size adjustment methods, this design offers greater flexibility and precision, better adapting to different pipe non-roundness conditions, and significantly improving the shaping effect and production efficiency. When faced with pipe fittings requiring rounding, the operator only needs to manually operate the adjusting block 4 to easily achieve the rounding operation. The entire process eliminates the need for additional structures such as complex transmission mechanisms, multiple auxiliary support components, or cumbersome adjusting levers, greatly simplifying the overall equipment design. The reduction in unnecessary parts significantly lowers the manufacturing cost of the shaping and adjusting components. The fewer parts also mean a lower potential risk of failure. Without the wear, loosening, and interference issues that can arise from numerous complex structures, not only are the frequency and cost of equipment maintenance reduced, but the continuity and stability of the production process are also ensured.

[0024] like Figure 1 and Figure 2As shown, a curved structure 1.2 is provided below the limiting step 1.1 of the first supporting member 1 and the second supporting member 2. The curved structure 1.2 and the limiting step 1.1 are on the same side, located on the side of the first supporting member 1 and the second supporting member 2 away from the adjusting connecting rod 3, i.e., on the outer side, and occupy the entire outer surface of the first supporting member 1 and the second supporting member 2 in the horizontal direction. When the shaping and adjusting component performs the rounding operation on the pipe, the curved structure 1.2 can fit tightly against the inner wall of the pipe. The curved structure 1.2 can increase the contact area with the inner wall of the pipe, thereby reducing the pressure per unit area and avoiding stress concentration. During the pipe shaping process, the evenly distributed rounding force can effectively protect the surface of the pipe from damage, reduce surface defects such as scratches and dents caused by shaping, and thus improve the product yield. The larger contact area allows the rounding force to act more evenly on the inner wall of the pipe, which helps to more accurately adjust the pipe's out-of-roundness. Compared to traditional stalks or wooden sticks as adjustment components, the curved structure 1.2 better adapts to the curvature changes of the pipe's inner wall, preventing damage to the product itself when using stalks or wooden sticks as adjustment components. It can more effectively and quickly adjust out-of-roundness, rather than on the socket surface. This makes the rounding process smoother and more precise, further improving the quality and performance of the pipe.

[0025] like Figure 1 and Figure 4 As shown, a guide cone 1.3 is provided at the bottom of the curved structure 1.2, and the guide cone 1.3 is located on the side of the first support circular member 1 and the second support circular member 2 away from the adjusting connecting rod 3. The guide cone 1.3 forms a slope and occupies the entire width of the first support circular member 1 and the second support circular member 2 in the horizontal direction, that is, it is equal to the width of the curved structure 1.2. The guide cone 1.3 extends to the bottom of the first support circular member 1 and the second support circular member 2. The presence of the guide cone 1.3 plays a key role when the shaping adjustment member needs to be inserted into the pipe or fitting. Due to the design of the guide cone 1.3, its front end forms a gradually narrowing shape, which makes it easier for the shaping adjustment member to overcome the initial resistance of the inner wall of the pipe when inserted into the pipe, and smoothly enter the pipe. Compared with the shaping adjustment member without the guide cone 1.3, the external force required by the operator during the insertion process is significantly reduced, which greatly improves the convenience and efficiency of the operation. This not only reduces the labor intensity of operators, especially in long-term, large-scale pipe shaping operations, significantly reducing operator fatigue and improving work efficiency; it also reduces the risk of scratching the inner wall of the pipe during insertion, helping to ensure that the inner surface quality of the pipe is not affected by the insertion process, laying a good foundation for subsequent precise shaping operations.

[0026] like Figure 1 and Figure 4As shown, the bottom end of the guide cone 1.3 is inclined towards the adjusting connecting rod 3, and the outer side of the guide cone 1.3 is curved. This design allows the guide cone 1.3 to better conform to the inner wall shape of the pipe when inserted, further reducing insertion resistance and minimizing damage to the pipe. During insertion, the curved outer side of the guide cone 1.3 can slide smoothly along the inner wall of the pipe, avoiding damage to the inner wall caused by jamming or collision. It also ensures that the shaping adjustment component can be accurately inserted into the predetermined position, providing a stable initial state for subsequent rounding adjustment operations. In actual production, this stable insertion process helps improve production efficiency and product quality stability, reduces the scrap rate caused by improper insertion, and lowers production costs.

[0027] like Figure 2 and Figure 3 As shown, the first support member 1 and the second support member 2 are provided with mounting seats 1.4 near their inner sides. The width of the mounting seat 1.4 is smaller than the width of the curved structure 1.2, and the mounting seat 1.4 and the curved structure 1.2 form a stepped structure. The mounting seat 1.4 is mainly used to install the adjusting connecting rod 3 and the support rod 5, and its structural design is of great significance. During the adjustment process, the two ends of the adjusting connecting rod 3 can rotate more stably through the tight cooperation with the first threaded hole 1.5 and the second threaded hole 2.1 in the mounting seat 1.4, avoiding the problem of uneven adjustment of the first support member 1 and the second support member 2 due to the shaking of the connecting rod, thereby improving the accuracy and quality stability of the shaping. At the same time, when the support rod 5 is installed, the relatively narrow width design of the mounting seat 1.4 allows the support rod 5 to play a better role, enhancing the structural strength of the entire shaping and adjusting component and ensuring the reliability and durability of the equipment during the rounding process.

[0028] like Figure 3As shown, the mounting base 1.4 of the first rounding component 1 has a first threaded hole 1.5 on its opposite side, and the mounting base 1.4 of the second rounding component 2 has a second threaded hole 2.1 on its opposite side, with the threads in the first threaded hole 1.5 and the second threaded hole 2.1 having opposite directions. The first threaded hole 1.5 is used to install and cooperate with the threaded structure at one end of the adjusting rod 3; the second threaded hole 2.1 is used to install and cooperate with the threaded structure at the other end of the adjusting rod 3. This design with opposite thread directions is one of the keys to achieving precise rounding adjustment of the pipe. When the adjusting rod 3 rotates, according to the thread transmission principle, the threaded structures at both ends will drive the first rounding component 1 and the second rounding component 2 to move in opposite directions simultaneously. Compared with the traditional single-direction adjustment method, this bidirectional adjustment mechanism has higher adjustment efficiency and accuracy. When facing different pipe non-roundness situations, the operator only needs to rotate the adjusting block 4 to quickly and accurately adjust the distance between the first rounding component 1 and the second rounding component 2, achieving precise rounding of the pipe and reducing adjustment time and labor costs. At the same time, this two-way adjustment mechanism can better ensure that the pipe is subjected to uniform force in the circumferential direction, avoid the problem of uneven pipe deformation caused by uneven force, improve the overall roundness quality and appearance consistency of the pipe, and meet the market demand for high-quality pipes.

[0029] like Figure 2 and Figure 4 As shown, a first mounting hole 1.6 is provided below the first threaded hole 1.5, and a second mounting hole 2.2 is provided below the second threaded hole 2.1. A support rod 5 is provided below the adjusting rod 3, with its two ends connected to the first mounting hole 1.6 and the second mounting hole 2.2, respectively. The support rod 5 greatly enhances the overall stability of the shaping and adjusting component. During the process of adjusting the roundness of the pipe, especially for larger, heavier, or harder pipes, the support rod 5 can effectively share the pressure and tension borne by the adjusting rod 3. When the adjusting rod 3 drives the first rounding component 1 and the second rounding component 2 to apply a rounding force to the pipe, the support rod 5 can provide additional support, preventing the adjusting rod 3 from bending, deforming, or even breaking due to uneven force or overload. This not only ensures the reliability of the shaping and adjusting components under long-term, high-intensity working conditions, extending their service life and reducing the problems of increased production costs and decreased production efficiency caused by frequent replacement of equipment parts; but also provides a solid foundation for precise shaping operations, enabling each rounding action of the pipe to be executed stably and accurately, thereby significantly improving the shaping accuracy and quality consistency of the pipe.

[0030] Work process.

[0031] When using this shaping adjustment component to improve the roundness of pipes, the operator first aligns the first rounding component 1 and the second rounding component 2 of the shaping adjustment component with the inside of the pipe, so that the guide cone 1.3 faces the insertion direction of the pipe. Then, gently insert the shaping adjustment component into the pipe until the limiting step 1.1 is engaged at the end of the pipe. At this point, the curved structure 1.2 should fit tightly against the inner wall of the pipe. Next, the operator adjusts the distance between the first rounding component 1 and the second rounding component 2 by rotating the adjusting block 4, thereby applying a rounding force to the pipe. If the roundness of the pipe is large, the operator can rotate the adjusting block 4 clockwise, causing the adjusting rod 3 to drive the first rounding component 1 and the second rounding component 2 to expand outwards simultaneously, gradually increasing the rounding force on the inner wall of the pipe. When the roundness of the pipe is close to the standard requirement, the operator can rotate the adjusting block 4 counterclockwise, causing the first rounding component 1 and the second rounding component 2 to tighten inwards, fine-tuning the rounding force to achieve the best shaping effect. Throughout the adjustment process, operators can observe changes in the appearance of the pipe and use professional measuring tools (such as calipers and roundness testers) to monitor the pipe's out-of-roundness in real time. Based on the actual measurement results, they can make precise adjustments until the pipe's out-of-roundness meets the expected standard requirements.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A shaping and adjusting component for improving the roundness of pipes, characterized in that, It includes a first and a second support circular member arranged symmetrically against each other, and the first and second support circular members are connected by an adjusting rod; the top of the first and second support circular members are provided with a limiting step, and the limiting step faces outward. A curved structure is provided below the limiting step, and a guide cone is provided at the bottom of the curved structure. The bottom of the guide cone is inclined towards the adjusting rod.

2. The shaping and adjusting component for improving the roundness of pipes according to claim 1, characterized in that, An adjusting block is fixedly sleeved on the adjusting rod. The two ends of the adjusting rod have threaded structures in opposite directions. The adjusting block is a metal nut.

3. The shaping and adjusting component for improving the roundness of pipes according to claim 1, characterized in that, The guide cone is located at the bottom end of the first and second support circular parts, and the guide cone is located on the side of the first and second support circular parts away from the adjusting connecting rod.

4. A shaping and adjusting component for improving the roundness of pipes according to claim 2, characterized in that, Both the guide cone and the curved surface structure are located on the side of the first and second support circular parts away from the adjusting connecting rod, and the outer side of the guide cone is curved.

5. A shaping and adjusting component for improving the roundness of pipes according to claim 1 or 3, characterized in that, The first and second support circular members are provided with mounting seats near their inner sides, and the width of the mounting seats is smaller than the width of the curved surface structure.

6. A shaping and adjusting component for improving the roundness of pipes according to claim 5, characterized in that, The mounting base of the first support member has a first threaded hole on its opposite side, and the mounting base of the second support member has a second threaded hole on its opposite side. The threads in the first threaded hole and the second threaded hole are in opposite directions.

7. A shaping and adjusting component for improving the roundness of pipes according to claim 6, characterized in that, A first mounting hole is provided below the first threaded hole, and a second mounting hole is provided below the second threaded hole.

8. A shaping and adjusting component for improving the roundness of pipes according to claim 7, characterized in that, A support rod is provided below the adjusting linkage, and the two ends of the support rod are respectively connected to the first mounting hole and the second mounting hole.

Images