SU54435A1 - Stamp for the manufacture of parts with oblique cuts - Google Patents

Description

As is known, in the manufacture of parts from a strip material, dies are used in front of the dies to perform several operations at once in a press ram, for example, cutting a part, bending it and punching holes in it. However, until now, there is no stamp that, along with the indicated operations, would form oblique cuts on the part.

The proposed stamp for this purpose has knives mounted in the inclined guides of its lower part. To drive the knives, the upper part of the die is provided with wedge surfaces.

Described below is a similar stamp for making cultivator lemeshka.

In FIG. 1 shows a side view of the stamp, partly in section; FIG. 2 is a top view of the lower part of the stamp; FIG. 3 is a front view of it; FIG. 4 and 4 lemeshka; FIG. 5, 6 and 7 - a knife in three projections.

On plate J, a matrix 4 is reinforced with square openings and bevelled ends with details.

In inclined guides 2 lower parts of the stamp, knives 5 are installed at an angle of 45 26 to the plane of the matrix. The knives 5 are tightened by springs 7 upward, forming a gap above the die up to 10 mm, where a strip of material is inserted for making a pouch.

This band material, the width equal to the width of the paper bag, is fed between the guides 3 until it stops 6. When the upper part 8 of the stamp moves down, its wedge surfaces press the knives 5, which, moving in the guides 2 lower parts of the stamp, reach the part and make an oblique cut, after which, with the further course of the upper die down, the punches 9 pierce square holes in the part. During the reverse of the upper part of the punch, the knives are returned to the original polishing with the help of springs 7 and earrings 10. To make the next stitch bag, a strip of material is fed forward; at the same time, it moves a fabricated part in front of it, which with its beveled end lifts the stop 6 and exits the die.

- The subject of the invention.

A stamp for the manufacture of parts with oblique sections of a strip material whose width is equal to the width of the parts, characterized in that for cutting out pointed

The ends of the part with beveling b used knives 5 installed in inclined guides 2 of the lower part of the die, for activating which the upper part of the die has wedge surfaces.

to the author's certificate of M. A. Yakhno

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Ya author's testimony M. A. Yakhno

No. 54435

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