SU475225A1 - Stamp for cutting sheet material - Google Patents

Description

one

This invention relates to the field of blank production.

A stamp is known for cutters of sheet material, containing fixed upper and movable upper plates with cutting elements mounted on them, as well as clamps.

The purpose of the invention is to increase productivity and safety.

This is achieved by the fact that the proposed stamp is provided with levers installed in the grooves provided in the body of the pressing of the lower plate, the pivoting equal arms, the short shoulders of which are interconnected by the plaque, and the long arms are equipped with adjustable stops.

The validation of the upper and lower clamps in this stamp allows high-quality cutting of thin-sheet material.

FIG. 1 shows the proposed stamp in section with the position of different-arm levers at the end of the cut; in fig. 2 - the same, in section with the position of different-arm levers when dropping the cut strip; in fig. 3 is a view along arrow A in FIG. 1, without a blank.

The stamp for cutting the strips consists of the lower I and the upper 2 plates, interconnected by two columns 3 and sleeves 4. On the bottom plate 1 there is a rigid support 5 and a holder 6, in which, in its

turn, fixed stationary knife 7, consisting of three docked sections. At the ends of the middle section of the knife grooves are made, B which are mounted on axes x 8

Miscellaneous levers 9. The short arms of the levers are interconnected by the pressure bar 10, and the long shoulders are equipped with adjustable, for example, spiral-shaped stepped supports 11: with the help of which it is possible to adjust the width of the cut strip. A buffer 12 and a lower 13 are installed between the stop bar 5 and the fixed knife 7, in which grooves are made under the long arms of the levers 9, the depth of which ensures their drowning when the cut strip is dropped. The upper plate 2 is attached to the holder 14 with a movable knife 15 and the upper attachment 16 with buffer 17.

At the beginning, the sheet blank is stacked in the stamp with the end face up to the blades 11 of the lever 9. Then, when the upper part of the stamp moves along with the press slide, the cut sheet is clamped on one side between the upper clamp 16 and the fixed knife 7 and, on the other hand, between the lower clamp 13 and a movable knife 15. Irn, further downward of the die, is used to cut the blank into strips of a given width. Irie move

rolling knife up the cut strip

remains on the lower clamp 13 between the cutting edge of the unattachable knife 7 and the step unors M. To remove the cut strip, the strainer lifts the sheet stock, causing the pressure plate 10 with short levers 9, to release from the load on the sheet stock, rises up, and the long shoulders of the levers 9, under their own weight, go down the viz into the groove of the presser 13. With this position of the brakes of the levers 9, the cut strip is pushed by hand with the end of the sheet blank (see Fig. 2). After collision of the strip, the preform is placed on the pressure index 10, which, under the weight of the preform, goes down and the long arms of the levers 9 together with the stepper arms

stops 11 occupy the outgoing working position. Next, the cycle of cutting the strip from the sheet 3ajOTOBiKn is repeated.

Subject invention

A stamp for cutting sheet material containing a fixed bottom and a movable top plate with cutting elements and clamps mounted on them, as well as clamps, is distinguished by the fact that, in order to increase productivity and safety of work, it is equipped with installed in grooves in the body clamping the bottom plate, swiveling differently arm levers, whose short shoulders are connected by a strap, inp “this has adjustable unors on the long arms of the levers.

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