DE420623C - Adjustment device for wind tools on spring wind machines - Google Patents

Description

GERMAN EMPIRE

ISSUED ON 29.0KT0BER1925

REICH'S PATENT OFFICE

PATENT LETTERING

CLASS 7d GROUP 2

(V 18912 // 7 d)

United machine works for wire processing, Wagner & Ficker and Otto Schmid in Reutlingen, Württbg.

Adjustment device for wind tools on spring wind machines.

Patented in the German Empire on February 9, 1924.

It is known that spring winding machines have draw-in rollers and adjustable winding rollers or winding pins for the production of tension, compression and shaped springs have the disadvantage that the changing of the winding rollers or Wrap pins on a different Eeder diameter

knife, as the correct angle of attack by swiveling the tools actuating Sliders have to be looked for first, unusually, for a long time and very practiced at the same time Worker requires.

This is even worse with winching

of so-called shaped springs, in which the ^; Winding tools can even be adjusted automatically while the machine is in motion | have to.

In known, with two wind tools; equipped universal spring wind machines. changes the spring diameter while the machine is running manages that one of the two winding tools through one of the to be wound Form spring corresponding cam is adjusted automatically. Change here but the angle of incidence of the winding tools in such an unfavorable way that one Shaped springs with large differences in the diameters are very difficult or can not be produced at all.

According to the invention, the disadvantages mentioned are eliminated in that the winding tools receive a special shift that is inevitable and interdependent. In this way achieved ' one that with the same devices' diameter-! changes between wide boundaries; can lead.

The practical realization of this idea is on the drawing on the basis of one Embodiment shown. |

Fig. 1 shows the arrangement of the winding tools in an order view of the machine represent.

Fig. 2 shows the scheme of the displacement of the winding tools and the resulting different spring diameters.

Except for the control forming the subject of the invention, the spring coiling machine has the usual design, namely the two draw-in rollers α and b, through which the wire η is brought through the guide a ¹ to the two winding rollers c, d . These rollers bend the wire into the spring shape n ¹ , namely the diameter of the spring changes with the distance of the rollers c, d from the center of the spring. The center point of the spring coil is marked with q and the two starting points of the winding rolls are marked with 0 and p . The adjustment of the winding rollers now takes place, as the schematic representation according to Fig. 2 shows, so that the two angles of incidence α and /? remain the same for all spring diameters. As a result, the starting point 0 of the winding roll d along the line tr, the starting point ρ of the winding roll c along the line sr and accordingly the spring coil center q along the line xx move with the individual spring diameter settings.

Such a displacement of the winding rolls is obtained, for example, in that the slide parts of the winding rolls are coupled to one another by means of toothed racks and toothed wheels. If it is a matter of setting the spring diameter for normal cylindrical coil springs, the setting is obtained in a known manner by adjusting the pressure screw e ¹ on the slide e and f ¹ on the slide f . When winding shaped springs, the τ> slide c is moved by a lever that is automatically driven by means of a cam disc while the machine is running, the cam disc having the design corresponding to the form springs. In order to transfer this shift inevitably and as a function of the other winding roll ei, a toothed rack g or Λ is provided both on the slide part e and on the slide part /. A tooth segment /, which is connected to a gear wheel k , engages in the former. This is in permanent engagement with a toothed wheel / which is firmly connected to the small toothed wheel m engaging in the toothed rack h.

Each displacement of the winding roll c accordingly leads to a similar displacement of the winding roll d in a certain ratio, as can be clearly seen from FIG. Naturally, you can _go to instead of winding rolls and wrapping pins, o winding cheeks. Like. Use.

Claims (2)

Patent requests: 1. Adjustment device for winding tools on spring coiling machines, characterized in that the displacement of two winding tools to change the spring diameter inevitably takes place according to law to each other and in the direction (sr or tr) to the starting point of the bending of the wire emerging from the fixed wire guide. 2. A device in spring wind machines according to claim 1, characterized in that the dependence in the displacement of the winding tools through between the slider parts (Y) of the winding tools (c, d) is switched gears gear o. The like. (G, i, I, In, K ) is received with a corresponding translation. 1 sheet of drawings.