The hydraulic dual-head decoiler represents the next step in the evolution of continuous stamping production, equipped with twin expandable and retractable coils specifically designed to accommodate material loading. This unique design feature allows for the simultaneous operation of two coils; one unrolls for use while the other is prepped, creating a seamless and highly efficient stamping process. In a clear move forward, the hydraulic variant supersedes the traditional model, integrating a hydraulic control system for the effective handling and stamping of heavy-duty coils, weighing 2T or above.

Navigating the Market: Decoilers and Their Limitations

However, the journey towards the ideal hydraulic dual-head decoiler has not been without its challenges. The majority of these machines available in today’s market simply add a hydraulic system to the standard model, neglecting the need for comprehensive structural enhancements. This results in several operational hurdles like interfering cylinders during usage or an imbalance when coils of differing weights are loaded, causing the decoiler to tilt and unroll unevenly. Further complications can arise from the potential for seal damage during pressurized cylinder rotation, leading to unwanted oil leaks.

Elevating Decoiler Design: A Novel Approach

Addressing these pain points inherent in the traditional hydraulic dual-head decoiler required a complete rethink. A fresh structural design was thus proposed and implemented:

Preventing Material Interference with Strategic Cylinder Positioning

In the newly designed model, the hydraulic cylinder is strategically positioned at the top of the dual-head decoiler. This placement effectively avoids material interference during the unrolling process.

Balancing the Load with an Extended Rotation Shaft

Furthermore, to counter the tilting problem associated with managing coils of varying weights or unbalanced loads, an extended rotation shaft is employed. Working in conjunction with the rotary box stroke, this feature provides a much-needed solution to maintaining balance during operation.

Solving Oil Leakage with a Refined Hydraulic Expansion Section

In the hydraulic expansion part of the dual-head decoiler, bearings are inserted between the rotating cylinder and the main shaft of the material rack, as well as between the tie rod and the connecting seat. As the main shaft of the material rack turns, the expanding and retracting coil along with the backplate rotate together. In contrast, the tie rod and cylinder remain stationary, due to the incorporation of thrust ball bearing and bearing. This innovative design stops the cylinder and tie rod from rotating simultaneously with the main shaft, therefore resolving the issue of cylinder axis misalignment. The bearings help ensure that the axis of the rotating cylinder remains aligned with the main shaft throughout operation, providing a solution to the oil leakage problem and ensuring smoother, more stable machine operation.

In conclusion, this revolutionary redesign of the hydraulic dual-head decoiler marks a significant step forward in stamping production, addressing common operational challenges and setting a new standard in the industry.

dual-head decoiler
dual-head decoiler