In modern stamping lines for motor stator core manufacturing, efficient coil handling is crucial to maintain consistent production and reduce downtime. Traditionally, heavy-duty decoilers have been used to support and unwind coil materials. These machines typically consist of a base and a main shaft assembly, with the shaft equipped with support wheels, hold-down arms, and expandable drums. The coil is mounted on the expanding drum, and material is uncoiled for feeding into the stamping press.
However, one major limitation of the conventional heavy-duty decoiler is the need to halt the entire stamping line to reload a new coil once the current one is depleted. Since these decoilers often carry heavy coils, the loading process is time-consuming and significantly restricts the effective runtime of the stamping line. Additionally, due to the single-shaft design—where the shaft must remain centered on the base to ensure torque balance—the process of reloading coils is particularly inconvenient.
The Double Head Decoiler addresses these challenges with a design specifically engineered to reduce loading time and eliminate production downtime. The base of the double head decoiler features a round, tapered structure that lowers the machine’s center of gravity. Mounted on this base is a rotating platform that supports a symmetrical dual-shaft system. Each end of the shaft is fitted with an expandable drum, allowing two coils to be mounted simultaneously.
In application, such as motor stator core stamping, the double head decoiler significantly boosts productivity. While one coil is in use and feeding material into the servo feeder and press, a second coil can be preloaded on the opposite drum. Once the first coil is consumed, the operator simply rotates the turret 180°, instantly switching to the second coil without interrupting production. Meanwhile, a new coil can be loaded onto the now-idle drum, preparing it for the next changeover.
This seamless transition drastically reduces downtime and maximizes operational efficiency. Furthermore, because the torque generated on the rotating base is well-balanced due to the symmetrical dual-coil setup, the entire structure maintains high stability and durability, extending the service life of the machine.
The double head decoiler proves to be an ideal solution for high-volume, continuous coil feeding operations in electric motor stator core stamping, where coil replacement speed and line uptime are critical factors for profitability.
