SU1382555A1 - Arrangement for displacing springs in spring-coiling machines - Google Patents

Description

(21) 3894976 / 31-12

(22) 05/12/85

(46) 03/23/88. Bul No. and

(71) Lutsk branch of the Lvov Polytechnic Institute. Lenin Komsomol

(72) E.A.Treiman, V.Yu.Matvienko, V.G.Andrukhnenko and Yu.V.Olkhova

(53) 621.778.27 (088.8)

(56) USSR Author's Certificate No. 1326377, cl. B 21 F 35/00, 1985.

(54) DEVICE FOR TRANSFORMING A PRUSH-SHSH IN A MACHINE-MACHINE

(57) The invention relates to devices for manufacturing springs on spring-winding machines and allows to expand the technological capabilities of the device by providing oriented movement of the springs. A spring-loaded carriage 1 is mounted on the frame in the guides. On the carriage 1, a plate 4 is fixed perpendicularly to the mandrel 3 and provided with a wedge-shaped catcher 5 with a radial groove. In the stationary knife 12 of the cutting mechanism, a hole is made to fix the end of the spring in which the spring-loaded stop is placed. 6 or

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The invention relates to the processing of metals by pressure, in particular to devices for the manufacture of springs on spring-coiling machines.

The purpose of the invention is the expansion of technological capabilities by providing oriented movement of the springs.

Figure 1 shows the proposed device, a General view; FIGS. shows the stages of movement of a wound spring from the moment the length of the spring ends to the capture of this end by the radial groove of the wedge-shaped catcher; figure 6 node I in figure 1.

The device for moving the springs in spring-coiling machines includes a movable carriage 1 placed on a 1x 2 direction parallel to the mandrel 3. On the carriage 1 there is a plate 4 with a slot under the mandrel, and a wedge-shaped catcher 5 with a radial groove for gripping the cut end is mounted on the plate springs.

The shank 6 of the carriage 1 is provided with a roller 7 in contact with the cam 8 placed on the shaft 9. The carriage 1 is spring-loaded along the guides to the two springs 10. The cutting mechanism contains a supporting 1 1 and a fixed 12 cutting knives. In the knife 12 is mounted a movable cylindrical stop 13 with a hole on the working surface intended for the end stop into it of the cut end of the wound spring. The cylindrical stop 13 is spring-loaded with a spring 14 pressed by an adjusting bolt 15. The transfer lever 16 is mounted on an axis 17 and has a pin 18 at the tip for transferring the spring for subsequent operations. The mandrel 3 is fastened to the winding head 19. In the latter, a pin 20 is installed to pinch the end of the wire, with which the spring 21 is wound with the ends 22 and 23.

The device works as follows.

The carriage I is set to the position for carrying out the operation of transferring the spring 21 to the pin 18 of the transfer lever 16 and is in the phase phase. The indicated position of the carriage 1 is determined by the fact that the wedge-shaped catcher 5 of the plate A is installed under the last turn of the spring being wound 21. At the end of the winding

The spring head 19 is stopped by holding the spring 21 in an elastically deformed state. The movable cutting knife 11 of the cutting mechanism cuts off the end 23 of the spring 21 and moves it towards the movable cylindrical stop 13 as it goes, stopping in this position.

At this moment, the reversing stroke of the winding head 19 begins. At the beginning of the reversing stroke, the spindle 20, when rotated, weakens the elastic deformation of the spring 2, which under the action of the elastic forces tends to unfold. The end 22 of the spring 21 unfolds in the direction of rotation of the winding head 19. When unwinding, the spring 21 slightly increases in diameter, as a result of which the end 23 of the latter rests against the hole of the movable cylindrical stop 13. With the further rotation of the winding head 19, the tongs 20 depart from the end 22 of the spring 21 makes a full turn and. pressed from the opposite side to the end 22, pressing it in the direction of unwinding of the spring 21. The end 23 of the latter is torn off. The wells and hits the surface of the wedge-shaped catcher 5. Moving along this surface, the end 23 together with the spring 21 moves along the mandrel 3, with the result that the spring 21 moves along the mandrel 3 to a distance exceeding the length of the peg 20, and its end 23 enters the radial the groove of the wedge-shaped catcher 5, fixing the spring to a position of stable equilibrium with respect to the mandrel 3. Next, the carriage 1 is set in motion along the guides 2, and, holding the spring 21 behind the end 23, moves it coaxially with the coil mandrel 3 pin 18 lever 16 shift. The latter rotates around the axis 17, transferring the spring 21 to subsequent operations, for example, for forming the ends. The movable knife 11 of the cutting mechanism is moved to its original position.

The application of the proposed device allows increasing the technological capabilities of the machine.

Claims (1)

The invention of the device for moving the springs in spring-coiling machines with a mandrel, containing placed on miHe device for removal of springs from a mandrel with a removable plate having a cutout under the mandrel, and a roller for contact with a disk copier, a trimming mechanism with movable and stationary blades and a mechanism for transferring springs from the mandrel, made in the form of a spring-loaded two-arm lever, on one the shoulder of which is fixed a pin installed parallel to the flange, which is different from the fact that, in order to expand the technological capabilities by providing oriented movement of springs, it is equipped with a spring-loaded carriage mounted on a frame in parallel mandrels, a removable plate mounted on the carriage perpendicular to the mandrel and fitted with a wedge-shaped catcher with a radial groove, a roller for contact with a disk copier is placed on the carriage, and in a stationary knife mechanism made a hole for fixing the end of the spring, which houses a spring-loaded stop. 20 21 fpua.3 TO Fi9. ; j FIG 5 Fi.V