The Defects and Solutions of Coiling Process in Sino-Phil Wire Drawing Machine
The coiling process is one of the most important steps of the wire drawing process. In the coiling process, the coiling pressure, heat dissipation and coil-type are the most important factors to ensure that the tension of the wire is within reasonable limits and the quality of the coil is good. The Sino-Phil Wire Drawing Machine is a wire drawing machine with good performance and reasonable price. However, the wire loop generated by Sino-Phil was slightly larger, exceeding the customers allowable range. The main reason is that the coiling process has defects.
First of all, the tension of the wire can not be effectively maintained. The tension of the wire is too small, resulting in excessive cut of wire before bending. If the tension of the wire is too large, the strain of the wire will increase, resulting in winding wire type deviation or broken wire. There are three reasons caused by the insufficient tension of the wire. On the one hand, the pre-tension time is not enough, the coefficient of friction between the pre-tension disk and the wire is too low and the pre-tension force is insufficient. On the other hand, the screw drive gap is too large, causing the rotation of the drive wire to be tightened and the drop of tension is increased. On the other hand, the drive wire is cracked due to fatigue, reducing the breakage rate and the tension of the wire.
Secondly, the temperature at the outlet affects the quality of the coil. On the one hand, the temperature at the outlet is too high, the mechanical properties of the wire are reduced, and the plasticity is reduced, which affects the transfer of the tension of the wire. On the other hand, the temperature is too low, the insulation performance of the wire is reduced, and there is condensation on the surface of the wire, which affects the curving forming effect. This will lead to a larger wind wire, which is unacceptable to Sino-Phils customers.
Finally, the forming type of the coil. The wire is not looped into a proper shape by the forming tool, the surface is uneven, and the position deviation is remarkable. The forming type of the coil is mainly determined by the position deviation of the wire in the coiler, and the position of the wire should be adjusted. At the same time, the shape of the forming wheel and its contact with the wire should also be properly adjusted to ensure the effect of the forming wheel.
In order to improve the quality of the wire reel produced by Sino-Phil Wire Drawing Machine, the first step is to ensure the tension of the wire. The pre-tension plate should be adjusted properly to ensure the friction coefficient, the pre-tension time should be increased appropriately, and the drive wheel should be checked regularly to prevent possible cracks in the wheel. The second step is to maintain the temperature at the outlet of the winder to ensure that the thermal insulation performance of the wire is stable. This can be done by increasing insulation or improving internal cooling. Finally, the forming wheel should be adjusted properly to ensure that the forming wheel and wire maintain a good contact and form a uniform coil shape.
In conclusion, there are several defects in the coiling process of Sino-Phil Wire Drawing Machine. By properly adjusting the tension of the wire, controlling the temperature of the coil outlet, and adjusting the forming wheel, the coils quality can be improved to the highest standard. Doing so will ensure that the coils meet the customer’s requirements.
