The delivery system is a critical component of the press mechanism in printing presses. It is responsible for receiving the printed substrate from the press and delivering it to the output or collection area. The delivery system ensures proper stacking, drying, and handling of the printed material.
Here are some key points about the delivery system:
- Function: The primary function of the delivery system is to receive the printed substrate as it exits the press and deliver it in an organized manner for further processing or collection. It ensures the smooth and efficient handling of the printed material.
- Delivery Mechanism: The delivery system typically consists of a series of conveyors, belts, or grippers that transport the printed substrate from the last printing unit to the designated output area. These mechanisms facilitate the controlled movement and stacking of the printed material.
- Stacking and Piling: The delivery system is designed to stack or pile the printed sheets or other substrates in an organized manner. It may include devices such as stackers, joggers, or shingling mechanisms that align and stack the printed material neatly.
- Drying and Curing: In some printing processes, such as offset or flexographic printing, the delivery system may incorporate drying or curing units. These units utilize heat, infrared radiation, or other methods to accelerate the drying or curing of the ink, ensuring quick handling and further processing of the printed material.
- Delivery Controls: The delivery system often includes controls and sensors to monitor and adjust the speed, stacking height, and other parameters. These controls ensure proper stacking, prevent jams or misfeeds, and optimize the delivery process based on the substrate characteristics and printing requirements.
- Collection and Finishing: Depending on the printing application, the delivery system may include additional components for collecting and finishing the printed material. These components could include folding units, cutting devices, perforation systems, or other finishing equipment to prepare the printed material for the desired final product.
- Inspection and Quality Control: Some advanced printing presses may incorporate inspection systems within the delivery system. These systems use cameras, sensors, or other technologies to perform real-time quality control checks, detecting defects, or inconsistencies in the printed material.
- Delivery Conveyor: The delivery system often utilizes a conveyor belt or a series of belts to transport the printed substrate. These belts provide a smooth and controlled movement of the material, ensuring precise delivery and minimizing the risk of damage or misalignment.
- Delivery Tray or Stacker: Once the printed substrate reaches the designated output area, it is typically collected in a tray or stacker. These trays or stackers provide support and containment for the stacked printed material, allowing for easy removal, further processing, or packaging.
- Delivery Maintenance: Regular maintenance and cleaning of the delivery system are crucial for consistent performance. Keeping the conveyors, belts, or stackers free from debris, checking for wear or misalignment, and ensuring proper lubrication contribute to reliable delivery and prevent production interruptions.
It’s important to note that the specific design and functionality of the delivery system may vary depending on the printing press type, model, and manufacturer. Different presses may have variations in delivery mechanisms, stacking configurations, or controls for speed and quality control.
In summary, the delivery system in a printing press is responsible for receiving the printed substrate and delivering it in an organized manner. It ensures proper stacking, drying (if necessary), and handling of the printed material. Proper maintenance and adjustment of the delivery system are essential for reliable delivery and efficient post-printing processes.