Head for cutting machine and cutting machine

Abstract

A head for a cutting machine comprises a cutting head rest, a first spindle, a second spindle, an inner cutting head and an outer cutting head. The inner cutting head comprises a reference locating plate fixed on the end face of the first spindle, a press plate sleeved at the end of the first spindle and an inner blade which is located between the reference locating plate and the press plate. The outer cutting head comprises a reference locating ring, a press ring and an outer blade, wherein the reference locating ring is fixed at the end of the second spindle, the press ring is sleeved at the end of the second spindle and located on the outer side of the reference locating ring, the outer blade is positioned between the reference locating ring and the press ring, an inner blade reference locating face is formed on the outer side wall of the reference locating plate, the inner blade is closely attached to the inner blade reference locating face, an outer blade reference locating face is formed on the outer side wall of the reference locating ring, and the outer blade is closely attached to the outer blade reference locating face. The gap between edges of blades cannot be affected by thicknesses of blades, so that the blades can be installed conveniently, besides, the blades can be polished again for use once abraded, and therefore, service lives of the blades are improved.

Description

technical field [0001] The invention relates to a machine head of a cutting machine for silicon steel sheets of a transformer iron core, and a cutting machine equipped with the machine head. Background technique [0002] In the prior art, such as the utility model patent whose Chinese patent number is CN98226641.3, the disclosure date is November 17, 1999, which discloses a kind of sleeve cutting type steel strip curve cutting machine. In the cutting mechanism, the upper and lower The disc cutters are respectively fixed on the upper and lower knife shafts, and the upper and lower knife shafts are respectively installed on the upper and lower knife rests by bearings, the upper knife rest is connected to the lower knife rest, and the tail ends of the upper and lower knife shafts Install the upper and lower transmission wheels, the lower tool holder is installed on the sliding seat by the rotating shaft, and the worm wheel is installed on the other end of the sliding seat, and ...

AI Technical Summary

Problems solved by technology

In the above technical solution, the cutting knife is installed on the knife holder, and the inner shoulder at the end of the knife shaft is used as the positioning surface. When installing, the thickness of the cutting knife will have a great impact on the gap between the two blades. , therefore, the requirements for the cutter are higher, which increases the cost and the difficulty of installation

Moreover, this structure makes it difficult to reposition the upper and lower cutters after the cutter is worn

Thus affecting the service life of the cutter

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