The main difference between the top-feed pillow machine and the bottom-feed pillow machine lies in the paper conveying method and its impact on the packaging process:
1.
Paper conveying direction:
•Top-feed pillow machine: The paper roll is installed above the machine, and the packaging material passes through the machine from the top to the bottom for packaging. This method allows the packaging to be sealed directly after receiving the filler below, reducing the fluttering of the packaging material in the air, which helps to improve the hygiene and accuracy of the packaging.
•Bottom-feed pillow machine: The paper roll is located at the bottom of the machine, and the packaging material is pulled through the machine from bottom to top. This design is conducive to the smooth conveying of gravity-assisted materials, which is sometimes more advantageous when handling heavier or larger products, and can reduce dependence on mechanical traction.
2.
Space occupancy and operational convenience:
•The top-feed design may require more top space to install and replace the paper roll, but the operator works on the ground, which is more convenient and safe.
•The bottom-feed design may save top space, but may require a higher machine installation position to facilitate paper roll replacement, and the operator may need to raise his sight or body to observe and adjust.
3.
Cleaning and maintenance:
•The top paper feeder structure may be more popular in some food or pharmaceutical industries due to its relatively low contact surface with the packaging material, which facilitates the maintenance of a clean environment.
•The bottom paper feeder may require more measures to ensure the cleanliness of the material conveying path, especially when handling products that are easily contaminated.
4.
Applicable product types:
•The top paper feeder may be more suitable for lightweight small packaging products with strict hygienic conditions.
•The bottom paper feeder may show advantages when handling larger or heavier packaging because it can use gravity to assist in the stable conveying of materials.
In summary, the choice of top paper feeder or bottom paper feeder pillow machine should be determined based on the characteristics of the specific product, the requirements of the production environment, and the actual layout of the factory.