{"id":4616,"date":"2024-01-19T07:41:54","date_gmt":"2024-01-19T07:41:54","guid":{"rendered":"https:\/\/swforming.com\/?p=4616"},"modified":"2024-01-19T07:42:30","modified_gmt":"2024-01-19T07:42:30","slug":"sigma-purlin-making-machine","status":"publish","type":"post","link":"https:\/\/swforming.com\/ar\/sigma-purlin-making-machine\/","title":{"rendered":"\u0645\u0627\u0643\u064a\u0646\u0629 \u0635\u0646\u0639 \u0627\u0644\u0645\u062f\u0627\u062f\u0629 \u0633\u064a\u062c\u0645\u0627"},"content":{"rendered":"\n

A sigma purlin making machine<\/a> is a type of roll forming equipment used to manufacture sigma-shaped metal purlins. Purlins are Z or C shaped structural beams widely used in metal buildings and roofing systems. They provide support for roof panels attatched perpendicular to the purlin direction.<\/p>\n\n\n\n

Sigma purlins have a unique shape that offers higher strength and rigidity compared to other purlin types. The sigma shape allows optimizing material usage while bearing roof loads. Sigma purlins are an excellent choice for pre-engineered steel buildings and low-rise constructions.<\/p>\n\n\n\n

This guide covers everything related to sigma purlin roll forming – working principle, main components, process flow, design considerations, capabilities, industrial applications, how to select the right machine, cost analysis, manufacturers, and more.<\/p>\n\n\n\n

Sigma Purlin Making Machine Types<\/h2>\n\n\n\n

Sigma purlin making machines are available in various configurations designed for different production requirements:<\/p>\n\n\n\n

Machine Type<\/th>Description<\/th><\/tr><\/thead>
Portable Sigma Machine<\/td>Compact and movable design for on-site roll forming small batches. Suited for small contractors and builders.<\/td><\/tr>
Manual Sigma Machine<\/td>Basic manually operated roll former for low volume production. Economic option for small manufacturers.<\/td><\/tr>
Automatic Sigma Machine <\/td>High production rates with automated controls. Preferred for large scale manufacturing plants.<\/td><\/tr>
Customized Sigma Machine<\/td>Tailor made sigma purlin lines as per required size range and output. Option for special profiles.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Choosing the right type depends on production scale, size range, budget, and whether portability to construction sites is required.<\/p>\n\n\n\n

\"Sigma
<\/figcaption><\/figure>\n\n\n\n

Working Principle<\/h2>\n\n\n\n

The working principle of sigma purlin rolling line is similar to standard metal roll forming. Continuous deformation of the metal strip passing through consecutive sets of roller dies forms the desired beam profile.<\/p>\n\n\n\n

It involves uncoiling a thin metal coil, passing it through a straightener to flatten it, followed by an entry guide. The pretreated strip then passes through the modular roll forming stands.<\/p>\n\n\n\n

Each rolling station makes a small bend until the final sigma shape is achieved. Other sections like a punching unit, shear and saw cut the purlins to specified lengths. The last section is the exit guide with a cooling table to set the profile.<\/p>\n\n\n\n

Automated machines have powered forming stations, speed synchronization, and controls for production monitoring. While manual machines have hand operated stands for economic small scale use.<\/p>\n\n\n\n

Main Components<\/h2>\n\n\n\n
Section <\/th> Components <\/th> Function <\/th><\/tr><\/thead>
Decoiling<\/td>Decoiler machine<\/td>Smooth unwinding of metal coil<\/td><\/tr>
Feeding<\/td>Feeding tables Rollers, guides<\/td>Transports strip, measures length<\/td><\/tr>
Pre-forming<\/td>Coil car Cutter, edge trimmer Straightener <\/td> Cut to width Controls thickness and shape<\/td><\/tr>
Forming <\/td>Forming stands Assembly of roll dies Gearboxes Motors <\/td>Progressively form sigma profile <\/td><\/tr>
Post-forming<\/td>Punching unit Shear\/cutter machine Exit tables<\/td>Making holes, cut to length Cooling and straightening <\/td><\/tr>
Automation<\/td>PLC controls Servo motors Sensors Conveyors<\/td>Monitoring and handling material flow<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The modular forming section is at the heart of the machine. The number of rolling stations here determines output rate and profile quality.<\/p>\n\n\n\n

Production Process Flow<\/h2>\n\n\n\n

A step-by-step overview of the purlin making process:<\/p>\n\n\n\n

    \n
  1. Decoiling<\/strong> – The metal coil is loaded on the decoiler. As it unwinds, the strip enters the feeding section.<\/li>\n\n\n\n
  2. Feeding<\/strong> – The strip is threaded through sets of rollers and guides up to the pre-forming area.<\/li>\n\n\n\n
  3. Pre-treatment<\/strong> – Activities like shearing, edge trimming and flattening happen here to prepare the raw stock.<\/li>\n\n\n\n
  4. Roll forming<\/strong> – The strip passes through a series of rolling stands. Each set of rolls makes a incremental bend, gradually forming the sigma shape.<\/li>\n\n\n\n
  5. Post-forming<\/strong> – Punching, cutting processes take place here to make holes or cut into lengths.<\/li>\n\n\n\n
  6. Cooling<\/strong> – Formed sigma beams cool and stabilize on the exit tables.<\/li>\n\n\n\n
  7. Bundling<\/strong> – Transverse conveyors group and stack the finished purlins for storage.<\/li>\n<\/ol>\n\n\n\n

    Design Considerations<\/h2>\n\n\n\n

    Key aspects that determine sigma machine design:<\/p>\n\n\n\n