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Common faults of used welded pipe mills production line forming machines (3)
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【概要描述】Common faults of used welded pipe mills production line forming machines can be divided into ① deviation ② scratches ③ "indenter" phenomenon ④ "drill belt" phenomenon. In order to let everyone understand the common faults of the molding machine in detail, we will introduce ② scratches.
Common faults of used welded pipe mills production line forming machines (3)
【概要描述】Common faults of used welded pipe mills production line forming machines can be divided into ① deviation ② scratches ③ "indenter" phenomenon ④ "drill belt" phenomenon. In order to let everyone understand the common faults of the molding machine in detail, we will introduce ② scratches.
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- Release time：2023-09-27 11:30
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Detail
Common faults of used welded pipe mills production line forming machines can be divided into ① deviation ② scratches ③ "indenter" phenomenon ④ "drill belt" phenomenon. In order to let everyone understand the common faults of the molding machine in detail, we will introduce ② scratches.
Scratches are generally easy to occur on the bottom and two sides of the pipe. The scratches on the bottom are mainly caused by the rounded corners of the lower edge R of the vertical roller pass, while the scratches on both sides are caused by the two edges R of the flat roll pass. Rounded corners cause more.
However, there are two reasons for the scratches of the forming machine of the used welded pipe mills production line, namely the scratches of the vertical rollers and the scratches of the flat rollers. We will introduce them in detail separately according to these two reasons.
2.1Analysis of the causes of scratches on vertical rollers
(1) Sharpening of rounded corners
As the wear of the bottom diameter of the flat roll pass decreases, the height of the rolling line gradually decreases, the vertical roll pass gradually becomes larger, and the rounded corner of the lower edge R of the pass also becomes sharper and sharper. It is easy to cause scratches on the bottom of the tube blank, especially when the heights of the two vertical rollers are inconsistent, such scratches are more likely to occur. As the vertical roller shrinks more, the scratches will become more serious. Therefore, maintaining the perfect rounded corners has a good effect on avoiding scratches at the bottom of the tube blank. Even if there is a slight dislocation of the two-hole type, it will not cause serious scratching consequences.
(2) The vertical roller is not vertical
After the vertical shaft is bent, or when the lower part of the vertical shaft shrinks more, and the upper part shrinks less, the vertical roller has an upward elevation angle phenomenon. If the rounded corners of the lower edge R of the vertical roll pass have been sharpened at this time, the bottom of the tube blank will be scratched (Figure 13). Therefore, the shrinkage of the upper part of the vertical roller should be increased to eliminate or reduce scratches, and at the same time, a portable grinding wheel should be used to grind sharp holes in the production.
(3) Bearing damage
After the vertical roller bearing is damaged, it is not only easy to cause the tube blank to deviate, but also one of the main reasons for the tube blank to be scratched. Especially when the upper end bearing of the vertical roller is damaged, the swing of the vertical roller increases during production, which is easy to cause scratches at the bottom of the tube blank and gnaw at the edge of the tube blank.
(4) Cracked edge of vertical roller
After the edge of the vertical roller hole is broken, periodic scratches will appear on the surface of the tube blank with the rotation of the roller. According to the direction of the shape of the scratch, the inner and outer positions of the broken roller can be judged. If the degree of damage is relatively minor, the cracks of the rollers can be repaired with a grinding wheel and continue to be used, which can also reduce the consumption of the rollers.
The reasons for the scratches in the common failures of the forming machines of the used welded pipe mills production line are mainly divided into vertical roller scratches and flat roller scratches. Today, we will introduce the cause analysis of vertical roller scratches:①The corners are sharpened. ②The vertical roller is not vertical. ③The bearing is damaged. ④Vertical roller cracked edge.
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For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
1.Basic construction: A typical roller type bedroom spiral hoop usually consists of two sets of rollers that form a spiral shaped channel for guiding and supporting the metal strip.
2.Operation principle: When the metal strip passes through the looper, the strip is guided and supported in the spiral path. Due to the spiral structure of the looper, the strip can be smoothly transmitted under the condition of uneven strip speed to ensure the normal progress of the subsequent process.
3.Commissioning and maintenance: Used equipment needs to be inspected and maintained in detail before use. Includes:
Cleaning: Remove oil, dust and so on from the surface.
Lubrication: Check and add lubricating oil to ensure the normal operation of each transmission component.
Calibration: Ensure that the neutralization pressure of the roller is set correctly.
Replacement parts: Check for wear and replace necessary parts.
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Through the above methods, the used roller bedroom spiral looper can continue to play its function and provide support for metal processing production.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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Each mold plays an important role in the production process, ensuring the quality and production efficiency of the welded pipe. According to the specific use and needs, different types of molds can be combined to achieve the best production results.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
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For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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In the early stages of roll forming technology, machining mainly relies on manual operation and simple mechanical devices. This kind of equipment has simple structure and is difficult to meet the production needs of complex profiles.
2.Mechanization improvement
With the advance of the Industrial Revolution, the degree of mechanization has gradually increased. Roller forming machines began to be equipped with electric motors and mechanical transmission systems, which increased production efficiency and output.
3.Automation and CNC technology
In the late 20th century, the development of computer technology led to the introduction of automation and numerical control technology (CNC). CNC roller forming machine can realize high-precision and high-efficiency automatic processing through programming, reducing labor costs and improving product quality.
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The new generation of roll forming machines introduces advanced control systems, including PLC (Programmable logic controller) and HMI (human machine interface), making operation easier and more intelligent. At the same time, the development of sensor technology also provides support for real-time monitoring and precise control.
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For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
1.Equipment procurement cost: The purchase price of second-hand equipment is usually lower than that of new equipment, but factors such as the service life, brand, model and functional perfection of the equipment need to be considered.
2.Transportation and installation costs: The cost of transporting the equipment from the place of purchase to the place of use and installing it, including handling, installation and calibration costs.
3.Maintenance and repair costs: Since the used equipment has been used, more maintenance and repair may be required. Therefore, regular maintenance costs and expected repair costs should be considered.
4.Operating costs: includes electricity and other energy consumption, as well as operator salaries and training costs.
5.Spare parts and consumables cost: Used equipment may require more frequent replacement of spare parts and consumables, which will also increase costs.
6.Upgrade and retrofit costs: In order to meet production needs, it may be necessary to upgrade or retrofit used equipment, and these costs need to be taken into account.
7.Warranty and after-sales service cost: Used equipment may have no warranty or a short warranty period, so after-sales service costs need to be taken into account.
In order to effectively control the cost of the second-hand pipe straightener, it is recommended to carry out a comprehensive cost accounting and benefit analysis, select the second-hand equipment with good reputation and good technical conditions, and do a detailed maintenance plan to extend the service life of the equipment and ensure its stable operation.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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Wechat: 13392281699
Email: zty@usedpipemill.com
Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province
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