Shredder blade

Abstract

The invention discloses a shredder blade which comprises a round thin blade body, wherein the middle of the thin blade body is provided with a mounting hole; the upper part of the outer circle is provided with a set of tool bits; each tool bit comprises a tool nose and a cutting edge formed by two inclined surfaces; the wall of the mounting hole is of an annular toothed structure; the upper surface of the tool bit is a section of circular arc which is concentric with the mounting hole; and the lower surface of the tool bit is pitched in the blade body to form the tool nose. The shedder blade has the advantages of reasonable structural design, favorable shredded paper effect, firm fixation with rotating shaft, and low processing cost.

Description

technical field [0001] The invention relates to a blade, in particular to a paper shredder blade. Background technique [0002] In corporate offices, many used and discarded papers are sensitive to the information recorded on them. In order to prevent others from obtaining the information recorded on the documents, the paper needs to be shredded, so paper shredders came into being. Existing paper shredders, whether electric or manual, use their shredding blades to cut waste paper into slender strips or shreds. Generally, the shredding blades are roughly round or bowl-shaped, and they The string is fixed on two parallel and relatively rotatable knife shafts. When the knife shafts rotate, the paper passing between the shredding blades is cut into thin strips or shreds under the extrusion of the shredding blades. The shredding ability of a shredder is generally measured by the maximum number of papers that can be cut by the shredder blade set at one time. Since users always ex...

AI Technical Summary

Problems solved by technology

However, the finish rolling of strip steel consumes a lot of energy and the cost of finished strip steel is relatively high; in addition, there is generally a thickness tolerance of 0.03-0.05mm in the finish rolled steel strip, because a cutter is usually equipped with about 60 pieces of shredded paper In this way, the cumulative thickness tolerance of the cutter reaches 1.8-3mm, resulting in poor assembly accuracy of the shredder cutter, which in turn affects the shredding effect. Therefore, it is necessary to finish the strip steel after finishing rolling and process it into a shredder blade. required thickness, which leads to cumbersome processing procedures, high energy consumption and low production efficiency of shredding blades

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