The automatic control system of the die-cutting machine adjusts the cylinder air pressure through proportional valves, with the cylinder pressing the friction pad against a fixed steel ring. The cylinder air pressure directly controls the friction between the friction pad and the steel ring, thereby closed-loop regulating the tension of the paper being released, ensuring consistent tension.

(1) Collect Knife Dies

After material pairing in the production process, we need to collect die molds for installation. When initially collecting die molds, we must refer to the drawings and material numbers to select the correct molds. It is crucial to accurately match material numbers and tool part numbers to ensure the correct tools are obtained, not just rely on the product shape. There are numerous tools for products with similar shapes in large die-cutting factories, and the same product may use several sets of new and old tools. Once the wrong tool is collected, it may not be discovered until production, resulting in significant material waste.

(2) Fixed Die Mold

After collection, we need to securely fasten the die cutting mold onto the template of the die-cutting machine. During the fastening process, it is crucial to strictly refer to the operation manual to determine whether the mold is a lower or upper piercing mold. If it's an upper piercing mold, it should be fastened on the lower template; for a lower piercing mold, it should be fixed on the upper template. We typically use high-viscosity, thin-thickness double-sided tape for fastening. When selecting the double-sided tape, be sure to use high-adhesive and stable tape (usually 3M tape) to prevent the mold from detaching during the piercing process.

(3) Fixed Die Angle Adjustment

When securing the die, it's not just about securing the blades. We must ensure the perpendicularity between the die and the machine's feeding direction during the securing process, guaranteeing that the mold remains perpendicular to the feeding belt during the punching operation.

(Four) Fixing of the pads

After securing the mold, we need to fix the padding board. The main function of the padding board is to protect the direct contact between the blade and the template, reducing tool damage and extending the tool's lifespan. The padding board is generally made of 1mm thick PVC or PE insulating board. It is advisable for the padding board to be larger than the bottom of the tool by at least 5mm on all four sides. The padding board should be fixed to the template along the material flow direction. Some die-cutting technicians are accustomed to using two padding boards when starting up, mainly for convenience in adjustment.

(5) Stress Regulation

The adjustment of pressure primarily refers to the depth regulation of the die-cutting mold. After we have installed the blades, we need to perform a mold adjustment and pressure test to ensure the mold can effectively cut the material. During the pressure adjustment process, it is strictly prohibited to directly perform single or linked cutting operations; the equipment must be adjusted to manual mode for testing and adjustment. If the mold still cannot effectively cut the material even after adjusting to the current full stroke, additional pressure adjustment should be performed for further testing. If the mold has already cut through to the lower mold base when adjusted to the full stroke, it indicates that the mold pressure is too deep and the pressure should be reduced for another test.