Decoilers play a crucial role in unwinding coils efficiently, and to further enhance their stability and performance, various optional devices are often employed. In this article, we will explore these optional devices and how they contribute to the smooth unwinding and feeding of materials.

1. Pneumatic Pressure Arm for Coil Stability

The pneumatic pressure arm is a valuable optional device used during the decoiling process. Its primary function is to apply pressure to the material, ensuring the unwound coil remains tightly wound, thus preventing it from scattering. This device proves particularly effective when dealing with delicate or lightweight materials that are prone to scattering without proper control.

2. Frequency Converter for Smoother Unwinding

To ensure seamless coordination with subsequent leveling and feeding machines, the frequency converter is a must-have optional device. It allows for easy regulation of the unwinding speed of the decoiler, resulting in a smoother and more efficient unwinding process. The ability to adjust the speed ensures that the material is fed at the optimal rate, preventing any disruptions during further processing.

3. Hydraulic Expansion for Effortless Material Loading

Traditionally, manual expansion has been employed to tighten the coil during loading. However, with the hydraulic expansion optional device, this process is simplified, making material loading significantly easier. The hydraulic expansion replaces the manual effort by automatically tightening the coil, reducing the time and effort required for loading.

Special Optional Devices for Decoilers

Apart from the commonly used optional devices, there are special optional devices designed specifically for unwinding and feeding medium to thick plates, large coils, and unconventional materials. Let’s delve into these special devices:

4. Pneumatic Disc Brake Device for Heavy Coils

When dealing with heavier coils weighing over 3 tons, substantial rotational inertia can be generated during the unwinding process. To counteract this, a pneumatic disc brake device is installed alongside the standard decoiler. This combination effectively eliminates the braking inertia, preventing the material from scattering during the unwinding process.

5. Pneumatic Material Stopper for Enhanced Control

The standard decoiler’s A-shaped iron material stopper may become cumbersome when dealing with wider or thicker coils, requiring manual adjustments and locking. To streamline this process, the pneumatic material stopper comes to the rescue. It consists of two material stopper rollers hinged on the decoiler frame, connected by an avoidance air cylinder. The width of material release between the rollers is adjustable, and during operation, the air cylinder facilitates material loading and unloading.

6. Hydraulic Pressure Material Arm for Thicker Materials

While the pneumatic pressure arm works well for unwinding mid-to-thin sheet coils, it may not provide sufficient pressure for thicker materials. To tackle this issue, the hydraulic pressure material arm proves to be the ideal solution. It is designed to rotate around the hinge point by a hydraulic cylinder and is equipped with dual pressure wheels. These wheels press against the outer surface of the coil on the decoiler expansion drum, thereby assisting in material feeding and achieving automatic feeding.

7. Hydraulic Material Supporting Arm for Convenient Loading

The hydraulic material supporting arm is yet another useful optional device for decoilers. It is hinged on the decoiler frame and driven to rotate by a hydraulic cylinder. Equipped with guide wheels and a curved supporting face, this arm simplifies material loading into the expansion drum, making the process more convenient and efficient.

8. Material Arc Photoelectric Control Device for Enhanced Sensing

To avoid any potential damage caused by contact-based sensing methods, the material arc photoelectric control device is utilized. Unlike traditional inductive contact-based sensing, this device employs photoelectricity to control the material arc. When the outer arc surface of the plate enters the photoelectric range, the decoiler automatically stops, preventing any scratching or damage to the material.

In conclusion, optional devices are essential to enhance the stability and efficiency of the decoiling process. From pneumatic pressure arms to photoelectric sensing controls, each device plays a significant role in ensuring a smooth and hassle-free unwinding experience. By choosing the appropriate optional devices based on the type of material being processed, manufacturers can optimize their decoiling operations, resulting in higher productivity and reduced downtime.