In practical use, the common problems of the laminating machine cutter mainly focus on three categories: edge wear, cutting quality, and operation failures, which are as follows:
1. Blade edge wear and dulling
This is a problem. It is characterized by increased cutting resistance, burrs on the cut, and inability to cut through the material in one go. It is mostly caused by long-term cutting of highly abrasive film-coated materials, excessive operating pressure, or failure to grind in a timely manner.
2. Blade edge chipping and nicking
Small chips or large gaps appear on the blade edge, directly affecting cutting accuracy. The main reasons are excessive cutting pressure, hard impurities mixed in the material, poor material quality of the tool itself, or substandard heat treatment processes.
3. Cutting quality defects
Includingskewed cuts, dimensional deviations, and severe burrs, mostly caused by loose equipment guide rails, unstable fixation of the tool holder, material deviation during feeding, or insufficient precision in blade edge grinding.
2. Knife sticking and glue accumulation
When cutting hot-melt adhesive film-coated materials, residual glue easily adheres to the blade edge, causing the material to stick to the knife, deformation of the cut, and also accelerating blade edge dulling and corrosion.
3. Operational vibration and abnormal noise
Abnormal noise accompanied by obvious vibration during the operation of the cutter is usually caused by loose tool holders, lack of lubrication in the circular knife bearings, or unstable operation of the equipment's transmission system. Long-term vibration will aggravate tool wear.
4. Rust and oxidation
If the cutter is not cleaned and oiled when idle, or stored in a humid environment, rust spots are likely to appear on the blade edge and the knife body, affecting subsequent cutting results and service life.
