An octagonal circular blade for cutting soft materials containing hard impurities and its manufacturing method

Abstract

The invention discloses an octagonal circle blade for slitting soft materials containing hard impurities and a manufacturing method thereof, and belongs to the technical field of special-blade processing methods. The octagonal circle blade comprises a regular octagon blade body, an installing hole is formed in the center of the blade body, large blade edges and small blade edges are arranged on all the sides of the octagon, the section-view section lines of the large blade edges in the diameter direction of the circle blade are in arc shapes, the central angles corresponding to the arcs are 10 degrees to 12 degrees, and the length of the arcs is 0.35 time to 0.4 time that of the circle blade. According to the octagonal circle blade, the large blade edges are designed into arc surfaces; in this way, resistance between a cut substance and the blade can be reduced during cutting, blade extrusion force of the impurities can be dispersed when the hard impurities are cut, the impurities are more easily cut up, and the wear degree of the blade edges of the impurities is also greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of processing methods for special blades, and more specifically relates to an octagonal round blade for cutting soft materials containing hard impurities and a manufacturing method thereof. Background technique [0002] The disc knife is one of the important parts of the slitter equipment. Generally, it is determined which slitter blade to choose according to the type and thickness of the slitting material. Generally, the slitting form of the slitter blade includes square knife slitting and round knife slitting. The square knife slitting is like a razor, the blade is fixed on the knife holder of the slitting machine, and the knife is dropped during the material running, so that the knife cuts the material longitudinally to achieve the purpose of slitting. There are mainly two ways of circular knife slitting: upper and lower disc knife cutting and circular knife extrusion slitting. Round knife slitting is ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the edge of the existing disk blade is easy to crack when cutting the rock wool board with special composition, the present invention provides an octagonal round blade for cutting soft materials containing hard impurities and its manufacturing method. The octagonal blade in the present invention The edge of the disc knife is significantly different from the edge of the common disc knife. The radial section line of the large knife edge of the existing common disc knife is an oblique straight line. This kind of knife edge is easy to process, but it is used for When cutting soft materials containing hard impurities, the edge of the knife is easily bitten by impurities, or the wear of the edge of the knife is very serious by the impurities. However, the octagonal disc cutter in the present invention designs the large edge of the knife into an arc surface, so that it can be cut on the one hand. Reduce the resistance between the cutting object and the blade. On the other hand, when cutting hard impurities, it can disperse the extrusion force of the impurities on the blade, making it easier to chop the impurities and greatly reduce the wear of the impurities on the knife edge.

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