Spiral Duct Forming and Welding Machine is a mechanical device that integrates the forming and welding processes of spiral ducts in one device:
1. Working Principle:
- Forming Principle: The equipment uses a series of mechanical devices to gradually roll the metal strip into a tube shape according to the set spiral angle. During the rolling process, both sides of the metal strip will pass through a special mold to form a spiral pipe blank.
- Welding Principle: After the tube blank is formed, the welding device will weld the pipe seam. Common welding methods include laser welding, argon arc welding, gas shielded welding, etc. These welding methods can firmly connect the pipe seams together to ensure the sealing and strength of the spiral duct.
2. Structural composition:
- Feeding device: used to transport the metal strip into the equipment, usually including unwinding racks, feeding rollers and other components to ensure that the metal strip can enter the forming area smoothly and accurately.
- Forming device: This is the core part of the spiral duct forming and welding machine, which consists of a series of forming rollers, molds, etc. These components are arranged in a specific order and angle to gradually roll the metal strip into a spiral tube blank.
- Welding device: It is generally composed of a welding power supply, a welding gun, a welding control system, etc. The welding power supply provides energy for the welding gun, and the welding gun melts the welding material (such as welding wire) and fills it into the pipe seam. The welding control system is responsible for controlling the welding parameters, such as welding current, voltage, welding speed, etc., to ensure the welding quality.
- Driving device: It provides power for the operation of the equipment, usually including components such as motors, reducers, transmission chains or belts. The driving device can drive the feeding device, the forming device and the welding device to work together to ensure the normal operation of the equipment.
- Control system: The PLC system is used to accurately control each part of the equipment. The operator can input parameters such as pipe diameter, wall thickness, spiral angle, etc. through the control panel. The control system will automatically adjust the operating status of the equipment according to these parameters to ensure the production of spiral ducts that meet the requirements.
3. Advantages and characteristics:
- High production efficiency: The two processes of forming and welding are integrated into one device, which reduces the intermediate transfer and debugging links and greatly improves production efficiency. Compared with traditional separate production equipment, the spiral duct forming and welding machine can produce more spiral ducts in a shorter time.
- Good product quality: The forming and welding processes of the equipment are precisely controlled to ensure the dimensional accuracy and welding quality of the spiral duct. The welded duct weld is firm and has good sealing performance, and it is not easy to have problems such as air leakage and water leakage.
- Easy operation: The control system has a high degree of intelligence. The operator only needs to enter the relevant parameters on the control panel, and the equipment can automatically complete the production process. At the same time, the maintenance and maintenance of the equipment are relatively simple, which reduces the work intensity and skill requirements of the operator.
- Strong adaptability: According to different pipe diameters, wall thicknesses and material requirements, the parameters and molds of the equipment can be adjusted to produce spiral ducts of various specifications to meet the needs of different customers.
4. Application fields:
Spiral duct forming and welding machine is widely used in construction, ventilation, air conditioning, purification and other fields. In construction projects, spiral ducts are often used for pipe installation in ventilation and air conditioning systems; in the industrial field, spiral ducts can be used in factory ventilation, exhaust, dust removal and other systems.

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