SU978990A1 - Cut-off device for springs - Google Patents

Description

(54) SEPARATE DEVICE FOR

The invention relates to the processing of materials by pressure, in particular to equipment for cutting pins, washers, rings and spirals from wire, preferably of a small index with 4, which is characterized by large forces on the cutting tools. A known cutting device containing a movable and fixed knife mounted on a frame, moving the knife C1 once perpendicular to the axis. A disadvantage of the known technical CorOi solution is that its technological capabilities are limited. The closest to the invention nOj technical essence is from peSHoe. The device for springs predominantly spring-coiling machines, containing an internal fixed knife mounted on the frame and an external movable knife fixed on the slider placed in the guide frame 2. A disadvantage of the known technical solution is that that its technological capabilities are limited. The whole invention is the expansion of technological capabilities by changing the angle of inclination of the movable knife. The goal is achieved by the fact that in the device containing an inner fixed knife mounted on a frame and an external movable knife mounted on a slider placed in a guide frame, a bracket with a radial and means for adjusting the position of the movable knife consisting of a rotary guide an axle of the retainer hinged on the axis of the guide slider, bushings with trunnions and adjustable rod attached at one end to the bushings, and the other to the slider, while the retainer is placed in a radial oh slots bracket. Figure 1 shows the cutting device; figure 2 - node 1 in figure 1; Fig. 3 is a view of L in Fig. 2. In the machine bed 1, the inner fixed knife 2 with a wedge 3 is fixedly mounted. Above the bed 1 there is mounted a bracket 4, in which a guide 6 is mounted on the axis 5, means for adjusting the position under the amphibious knife having the ability to rotate on this axis 5 and fix in Radial slots x 7 of the bracket 4 with retainers-nuts 8 (the second slot 7 and retainer 8 on the reverse side are not shown in the drawing}.

Slide 9 is movably located in the guide b, at the lower end of which an external movable cutting knife 10 is fixed by a strap 11. At the upper end of the slider 9, an adjustable bar 12 for primary adjustment is hingedly mounted, through nuts 13 and 1.4, relative to the external 10. and inner 2 knives, serving for cutting wire 15.

Between the nuts 13 and 14, there is a sleeve 16 with perpendicularly protruding pins 17. The other end of the rod 12 is connected to the sleeve 16, the pins 17 of which are connected to the drive. house machine.

The device works as follows.

The springs, washers, or rings to be cut off are wound from the feed wire 15 and are periodically cut off at the time the feed is stopped by the interacting cutting blades 2 and 10.

For this, in means for adjusting the position of the movable knife, the guide 6 of the vmst with the slider 9 and the outer cutting knife 10 rotates on the axis 5 in the bracket 4 and is fixed in the slot 7 by the clamps 8 at the minimum angle oL, ensuring a high-quality wire cut, while the internal fixed The knife 2 with its cutting edge is located in the inner cavity of the first turn, wound on the quinah branch.

Such an embodiment of the adjusting means provides unloading of the cantilever cutting part of the inner non-sliding knife, where the resultant R cutting force is directed to the base of this part of the knife.

Claims (2)

1. USSR Author's Certificate No. 211508, cl. B 21 F 35/00, 1965. 2. USSR author's certificate t 764801, cl. B 21 F 35 / 00,1979 (prototype). / J5