In order to make the cut paper flat, it is necessary to ensure that the A4 paper cutter blade is sharp and the sharpening angle is appropriate. When the A4 paper cutter cuts soft paper, the blade sharpening angle should be 16°; when cutting cardboard and kraft paper, the blade sharpening angle should be 20°; when cutting commonly used printing paper When the blade sharpening angle is 21°.
In order to ensure the cutting quality of paper and printed matter, the A4 paper cutter needs to be maintained at ordinary times. The main points are as follows:
1. According to different seasons, choose the appropriate hydraulic oil. Use No. 20 motor oil in winter to maintain its fluidity; use No. 30 motor oil in summer to maintain a certain viscosity.
2. Maintain proper hydraulic pressure. If the pressure is too large, the sealing ring will burst; if the pressure is too small, the cutting of the blade will appear sluggish and weak.
3. Coat the cutting platform and the blade mouth with talc or paraffin. In this way, one is to reduce the frictional resistance between the paper and the platform, and the operation is labor-saving; the other is to extend the cutting times of the blade, and the cutting edge is smooth and neat.
4. Add lubricating oil. Before working, add lubricating oil to the oil filling port of the machine to keep the machine lubricated and clean without making noise, so that the A4 paper cutter is always in good working condition.
