An automatic paper feeding structure of a shredder

Abstract

The invention discloses an automatic paper feeding structure of a shredder. The automatic paper feeding structure comprises a frame and a paper feeding channel formed above the frame, wherein the paper outlet of the paper feeding channel is positioned above the paper inlet of a shredding roll set of the shredder. The automatic paper feeding structure is characterized in that: a plurality of paperdistributing needle stands rotating around a fixing shaft are distributed on the fixing shaft of the frame along the axial direction; a paper distributing needle is inserted into each paper distributing needle stand; the paper distributing needles are distributed in sequence in a stepped form in the height direction along the axial direction of the fixing shaft; the needle point of each paper distributing needle faces the paper discharging direction of the paper feeding channel; the frame is provided with a camshaft which is parallel to the fixing shaft; cams which can rotate synchronously along the camshaft and are matched with the paper distributing needle seats one by one are distributed on the camshaft along the axial direction; and the cams act on the paper distributing needle seats to drive corresponding paper distributing needles to rotate towards the paper inlet of the shredding roll set in sequence. Compared with the prior art, the automatic paper feeding structure has the advantages of high paper feeding reliability and capabilities of realizing graded paper feeding and increasing the working efficiency of the shredder.

Description

technical field [0001] The invention relates to a paper shredder, in particular to an automatic paper feeding structure of the paper shredder. Background technique [0002] As a special office equipment for destroying paper, paper shredder is usually used by people to shred waste paper or paper that needs to be kept secret. In order to improve the efficiency of paper shredding, many existing paper shredders are equipped with automatic paper feeding structures. These automatic paper feeding structures generally use the rubbing wheel to directly rub against the paper to be shredded. Friction feeds paper. [0003] For example, the Chinese utility model patent whose patent number is ZL200920134472.0 (authorized announcement number is CN201470445U) discloses a paper shredder with an automatic feeding device. The automatic feeding device of the paper shredder includes an S-shaped guide The guide feeding mechanism is a combination of the board and the pickup roller. The pickup ro...

AI Technical Summary

Problems solved by technology

[0005] Although the above two patents differ in paper feeding methods, they are essentially feeding paper through the friction between the pickup roller and waste paper. The reliability of paper feeding is poor, and the number of paper feeding is not stable enough. Paper jams or low paper feeding often occur when pleating, resulting in low working efficiency of the shredder

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