SU488657A1 - Flying scissors - Google Patents

Description

one

The invention relates to the processing of metals by pressure and can be used in continuous metallurgical lines in the machine-building industry.

Flying scissors are known that contain planetary mechanisms made in the motionless stationary solar gear wheels, spun with wedge gears, mounted into drums rotating on hollow drive shafts mounted concentrically fixed in & blades of sun gears, and cutting heads with knives connected with shafts of planetary gears.

The purpose of the invention is to increase productivity, expand technological capabilities and simplify the design. To do this, in the proposed device, drum shafts, just like the shafts of the sun gears, are rigidly interconnected and mounted on the same axis, and the cutting heads are perpendicular to the shafts of the planetary gears.

To ensure plane-parallel cutting, the cutting heads are designed as

calipers with knives fixed on them and knives feed rollers for cutting, installed with OPPORTUNITIES for moving, respectively, in holders and racks rigidly connected to each other and fitted with springs fixed from one end and with other balls interacting with each other. and rollers after knives on a cut, with carbon copies.

In order to avoid sliding friction, the balls are made in the form of hinged-connected barrel-shaped rollers and crosses, installed with an angular mixing equal to the part of the step between these rollers.

FIG. 1 shows the kinematic

The scheme of flying scissors in FIG. 2 is the same, the general spec. on fng. 3 - section AA on fng. 2; per kg Figure 4 shows the interaction of planetary mechanisms with knives with a cutting strip (section BB in Fig. 1). Flying shears contain a drum 1 rotating on a drive hollow shaft 2, which is connected to the drive shaft with a gear 3 and -

Noah 4 - rolling bearings 5.

Inside the drum 1 are mounted planetary mechanisms, made in solar 6, parasitic 7 and planetary 8 gears. The sun gears are stationary, sitting on one 9 fixed in a bed 4. The shaft 9 is located inside the hollow drive shaft 2 and on the same axis with it. The gears of the planetary mechanisms are concomitant with the hadn 10 with the help of rolling bearings 5. The total gear ratio of the planetary meresho-emoE is one. Sia drum 1 mustache of two heads 11, soy. TS4shchenye with planetary gears 8 with noMOLubfo splined shafts and shafts with shpo8 "slip 12, pass 1Sh1kh through hollow shafts 13 planetary gears 8, Cutting heads 11 are made in the form of leather 14 and 15 , fixed. on the calipers 16, which are pressed against the planetary sheatern m 8 springs 17.

The supports 16 are moved in the guide holders 18. The position of the supports 16 in the direction of the holder 18 is fixed by means of springs 19 installed on one end side of the supports 16. On the other end sides on the supports Iti secure the balls 2O, interacting with the copiers 21 Located on the frame 4, the holders 18 are rigidly connected by means of the shafts 12 to the posts 22, in whose guides the roll 23 of the knife feed can be moved. The rollers 23 interact with the copiers 24 located on the frame 4. Between the posts 22 and the rollers 23, return springs are mounted. 25. With a side diametrically opposed to the springs 25, balls 2C are fixed on the rollers, Bzann-modulated with copiers 21 located on frame 4, Balls 20 (see Fig. 2.3) are made in the form of axes 26, on which crosses 27 and barrel-shaped rollers 28 are mounted with axes 29. Rollers and crosses are interconnected by means of rolling bearings. Krestovik 27 rollers 28 in each ball at least two; In each spider cross, the barrel-shaped fronds are mixed for a fraction of the step with respect to the previous cross not. This creates a picture of a continuous ball on the surface of the bonded xyuburn rollers. There may be two or several pairs of skin interacting in the cochips, then the number of planetary mexiii3.soB will increase accordingly, however, all OKA will be closed on the shaft 9. Agni can be replaced by other cutting tools or stamps.

Scissors work as follows. When the drum 1 rotates on the shaft 2, the parasitic 7 and planetary 8 gears o6mat around the stationary sun gears 6, making a revolution of the drum one revolution inside the carrier 10 (since 1) and carried the cutting heads 11, the knives 14 and 15 which make plane parallel to it is circumference with a radius equal to

distance from the axis of the shaft 9 jio axis of the shaft jL2 ,. and 13. When rotating, the knives always maintain a perpendicular position both to the axis of feed of the DF strip and to its feed plane. With its rotation knives 14 and 15

enter the zone of interaction with the strip 30 on a relatively small angular portion of the rotation of the drum 1 (see Fig. 4) and since they are pressed against the planetary gears 8, they freely pass over the strip 30 without hitting it. The cut is carried out by reducing the knives during the rolling of the rollers 23 to the copiers 24. After the cutting and rolling of the rollers 23 from the copiers 24, the knives open up under the action of springs 17. Crosscutting the strip knives 14 and 15 and the rollers 23 should move in the cutting zone a direction parallel to the longitudinal axis of the AOR strip, and therefore the balls 20 roll over copiers 21, made in this case flat. At the same time, the calipers with knives and feed rollers for the cut are shifted from the axes of the planetary shchestren to the center of the drum so that the knives and rollers acquire a straight linear path. AT

depending on the performance of copiers 21

various cuts can be made. Calipers are returned to their original position, with knives and feed rollers returned by springs 19

and 25.

TEK, as at the moment of cutting, the sulports with knives and the feed rollers to the cut move simultaneously in two directions, the angular displacement of the cross 27 on the axes 26 and simultaneously the barrel-shaped rollers 28 relative to the crosses 27 takes place.

Scissors can be used to run as each run.

cut and in continuous rotation mode. In order to carry out the cuts of the cut, the copiers 24 are movable.

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Claims (3)

1. Flying shears containing P1: b. The electronic mechanisms, made in the form of fixed sun gears, conjugated with planetary gears, and built into the drums, rotating on hollow drive shafts mounted concentrically to the fixed shafts of the sun gears, and cutting gopovhv with knives associated with the shafts plan of gears, which are different from the fact that, with the aim of increasing productivity, expanding technological capabilities and simplifying the design, the shaft of the drums is the same as solar shafts gears, are rigidly interconnected and mounted on the same axis, and the cutting heads are located on the feet of the shafts of the planetary gears. 2. The scissors according to claim 1, characterized in that, in order to provide a plane-parallel cut, the cutting heads are made in the form of supports, fixed to their heads and knives for cutting, the lips are movable respectively in the holders and racks, rigidly interconnected and fitted with springs fixed from one of the tori, and from the other with balls, which are similar to the nozta4e rollers on the pea, c to the fats. 3. The scarp of the novp. 1 and 2, which is distinguished by the fact that, for the purpose of making sure that the balls are sliding, the balls are made in the form of connected hinged barrel-shaped rollers in crossings, installed with an angular mixing equal to the part of the uiara between the rollers. "I P 23 28 FIG. 2 | p // r J  Dona Izhodeodeist with knives with a cut strip