The packaging process involving a sealing machine and a shrinking machine
2024-09-13
1. **Product Loading**
Products are placed on the conveyor belt of the sealing machine, either manually or automatically. The products move through the system in a continuous flow, ensuring a smooth packaging process.
2. **L Bar Sealing**
The **L bar sealing machine** uses an "L" shaped sealing blade that cuts and seals shrink film around the product. The film is usually a type of plastic, such as polyolefin or PVC, that is wrapped around the item.
Once the product reaches the sealing station, the film wraps around the product, and the sealing blade cuts the excess film while simultaneously sealing the edges. This creates a loose-fitting "bag" of shrink film around the product.
3. **Film Wrapping and Sealing**
After the L bar sealing step, the product is fully enclosed in shrink film with the sealed edges. At this point, the product is ready for shrinking.
4. **Transfer to Shrinking Machine**
The product, wrapped and sealed in the shrink film, is automatically transferred to the **shrinking machine** via a conveyor belt. This is usually an automated process for efficiency and speed.
5. **Heat Shrinking**
Inside the shrinking machine (commonly referred to as a **shrink tunnel**), the product passes through a heated chamber. The temperature in the shrink tunnel is precisely controlled to avoid overheating the film or damaging the product.
As the product moves through the tunnel, the heat causes the shrink film to contract tightly around the product, conforming to its shape. This process ensures that the product is securely packaged, with the film providing a protective outer layer.
6. **Cooling and Solidifying**
After exiting the heat tunnel, the product enters a cooling section. This allows the shrink film to set and harden around the product, creating a tight, durable, and clear protective layer.
7. **Final Output**
Once the product has been cooled and the shrink film is tightly sealed around it, the final packaged product is conveyed to the output area. The product is now ready for labeling, boxing, or direct distribution.
Key Features of the Process:
**Precision Sealing**: The servo-controlled sealing knife ensures precise cuts and seals, minimizing waste and ensuring an airtight package.
**Consistent Speed**: The front and rear conveyors, also servo-controlled, synchronize with the sealing and shrinking processes, allowing smooth operation even at high speeds.
**Efficient Shrinking**: The shrinking process ensures that the film conforms closely to the product, providing a clean, professional finish.
This automated process combines speed, precision, and efficiency, making it ideal for high-volume packaging operations in various industries such as food, pharmaceuticals, electronics, and consumer goods.
