Method for preventing perforated adhesive film from deforming after cutting

• Main Authors: FANG HUA, BAI YUANSHENG, YANG CHENG, SHI AN, CHEN SHIBIN, LI YUNSHI
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2021
• Subjects: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING; HAND CUTTING TOOLS; PERFORMING OPERATIONS; SEVERING; TRANSPORTING

The invention discloses a method for preventing a perforated adhesive film from deforming after cutting. The method comprises the following steps that S1, cutter machining is performed, specifically, the width of a central hole (2) in an adhesive film blank (5) is measured, an arc-shaped groove (8) is milled in the right end surface of a straight cutter, the width of the arc-shaped groove (8) is guaranteed to be larger than that of the central hole (2), and meanwhile, the lower edge of the arc-shaped groove (8) is guaranteed to penetrate through a cutting edge (9) of the straight cutter, so that the cutter (10) is machined; and S3, the cutter (10) is adopted to downwards cut the left end portion of the adhesive film blank (5), the cutting edge (9) of the cutter (10) is cut into the adhesive film blank (5), part of a material of the left end portion of the adhesive film blank (5) is contained in the arc-shaped groove (8), and an arc-shaped protrusion (13) matched with the arc-shaped groove (8) is formed on the