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What is the principle of a paper shredder

The paper shredder is composed of a set of rotating blades, paper combs and driving motors. The paper is fed from the middle of the interlocking blades and divided into many small pieces of paper to achieve the purpose of confidentiality. The paper shredder has two main parts, "paper cutter" and "electric motor", which are closely connected by belts and gears. The motor drives the belt and gears to transmit energy to the paper cutter, and the paper The knife shreds the paper with the sharp metal corners by turning it.
The cutting principle of the shredder is that the blades or knives are dislocated, and the paper is torn apart under the action of the power source. If the knife or blade is set with a tip, the effect of shredding is segmented or granular, and if the knife or blade is set without a tip, the effect is strip.
Some shredders on the market can choose two or more shredding methods. Different shredding methods are suitable for different occasions. If it is a general office occasion, you can choose segment, granular, filament, or strip. However, if it is used in some occasions with high confidentiality requirements, it must be used in foam form. At present, the shredding method consisting of four knives is the most advanced way of working. The shredded paper is neat and neat, which can achieve the effect of confidentiality.