The double-jointed joint is a joint in which two metal workpieces are held together by prebent edges pressed tightly against each other. The high quality of the folded seam, allows the use of this technology for the manufacture of air ducts and their parts. This production method is characterized by simplicity, minimal power consumption and high production efficiency, in contrast to any type of welding. To obtain the elements of the folded lock, folding machines are used. If you want to buy s and quality drive cleat machine, folding machines or everything else you may need, you need to find a reliable manufacturer.
Types of folding machines
The folding equipment manufactured today is conventionally divided into two categories:
- manual – equipment for use at the household and household level;
- professional – machines for industrial production.
The range of thicknesses processed on professional equipment metal will be much wider. These machines are able to roll several types of folded joints, provide high performance and quality of the final product.
Operating Principle of the Folding Machines
Turning on the start button activates the electric motor of the machine. The electric drive transmits the torque to the forming rollers via chain drive and reduction gear. The metal workpiece is advanced directly along the guides to the first pair of rollers that fix the metal workpiece, pushing it through the remaining folding rollers. Thus the elements of the folded connection are obtained by rolling the sheet metal between a series of rollers, bending the edge of the sheet and consistently giving it the desired shape. Then it is only necessary to join the resulting blanks.
With the help of folding mechanisms receive different types of folds. According to the device lock rebate joints are: single, double, combined and corner. According to shape: standing, lying.
How to choose the folding equipment
In determining the necessary model of folding machine for your production, you need to pay attention to the technical features:
- the number of roller pairs installed to bend the sheet edge into the fold;
- the maximum allowable size of the processed sheet;
- the maximum thickness of the metal;
- the types of fold locks that can be made on this equipment;
- estimated productivity depending on the speed of the fold;
- electric motor power;
- construction reliability and quality of assembly.
The final decision in choosing the model should be taken on the basis of a comparison of compliance with the technical capabilities of the purchased equipment to production needs. For this purpose it is recommended to get professional advice from a specialist of Stangroup company on this type of machinery.
For the correct operation of the air ducts is important that the folded connections are very tight. So if there are gaps in these systems, the resistance to airflow increases (also increases the energy consumption of fans), which leads to dangerous situations: suction of gases and odors, especially when it comes to combustion products. It is therefore necessary to make the construction of the air ducts impermeable. Maximum sealing of folded joints, is achieved at the final stage of ducting production, which is called: the fold deposition.
During this process, the edges of the sheet are sealed and bent almost flush with the pipe itself under powerful pressure. As a result, the rebate joint is complete, does not let air in and does not protrude, this provides a convenient and safe installation. To obtain such a tight joint, a folding machine is used.