SU1617463A1 - Device for twisting wire strands - Google Patents

Abstract

The invention relates to electrical engineering. The aim of the invention is to improve the quality of twisting. The device consists of a twisting head with clamping jaws 16, controlled by a pushing sleeve 18 and a clamping device for a wire made in the form of clamping jaws 6, mounted on the base 1 with the possibility of swinging on the semi-axis x 4 and spring-loaded relative to the base spring 9. The twisting head is installed on the drive shaft 14. The conductors of the wire 24 are inserted through the tapered guide 22 into the twisting head and the wire 25 is clamped with jaws 6. Then the cams 16 of the rotating twisting head clamp the conductors 24 and there is a twisting of veins. The reduction in the length of the twist section, resulting from the stranding of the cores, is compensated for by moving the clamping jaws onto the semi-axes 4. Thus, the goal is achieved by providing a constant automatic tension on the wire by acting on the clamping jaws 6 of the spring 9 throughout the whole twisting process . 8 il.

Description

fig.Z

The invention relates to electrical engineering and can be used in electrical and radio installation work.

The purpose of the invention is to improve the quality of the stranding of the cores of the wires.

Fig, 1 shows the proposed device, a general view; figure 2 - section aa in figure 1; FIG. 3 is a section A-A in FIG. 1 (in the process of twisting); figure 4 - view B in figure 2; figure 5 - view B in fig.Z (without flange); figure 6 is a section bb In figure 2; figure 7 is a view of the figure 6; on - cams of the clamping mechanism of the twisting device, isometries.

The device comprises a frame 1, on which a clamping device 2 is fixed, and on the brackets 3 it is pivotally mounted on a semi-axle x 4 1 orpus i with clamping jaws 6, which are spring-loaded relative to the body 5 by bars 7 and connected by an axis 8. Between the base 1 and the base of the body 5 s on one side there is an elastic element — a spring 9, or, for example, two springs. The clamping jaws 6 through the pusher 10 with the rollers 11 are kinematically connected to the control pedal 12. The base 1 also has a twisting head 13, which contains a stepped drive shaft 14 with grooves 15, on the end plane of which four cams 16 are mounted at an angle of 90 relative to each other other spring-loaded relative to the grooves of the shaft 14 by springs 17. A pressure sleeve 18 is also mounted on the shaft 14, the inclined surfaces of the cat interact with the cams 16. The sleeve 18 is kinematically connected to the control pedal 19. A flange 21 with a cone 22 for a conductor of wires has been attached to the end of the shaft 14 with screws 20. The device is also equipped with a knife 23 for trimming the ends of the wires 24 of wires 25 and the electric head 26 of the twisting head.

The device works as follows.

 The control button turns on the drive that drives the twisting shaft 14 (its shaft and the cutting knife 2) By pressing the pedal 12 of the jigging control, unclip the jaws 6 with the pusher 10 and put in them the appropriate amount of wires 25 with the strands 24 drawn at the ends pushing the wires along the 1Ш lines (his

five

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the cone 22 into the central opening of the rotating cams 16 up to the stop. The pedal 12 is released, as a result of which the jaws 6 are clamped by the jaws 6 under the action of the springs 7. Then, pressing the pedal 19, which is kinematically connected with the pressure sleeve 18, interacting with its rotating surface with the rotating cams 16, clamp the stripped wires of the wires, which start, twist in the latter.

When the wires are twisted, the cores are shortened and the distance between the twisting head 13 and the clamping device 2 begins to shorten, as a result of which the clamping device 2, turning on the semi-axis x 4, begins to approach the twisting head 13 due to compression of the spring 9, therefore the strands of the twisted wires do not are pulled out of the clamping mechanism of the twisting head 13, i.e. provides constant tension of twisted wires, which eliminates poor-quality twist.

After the stranding of the strands is completed, the pedal 19 is released, the cams 16 being consumed, and the stranding of the strands is stopped. Pressing the pedal 12 unclenches the jaws 6 and remove the wires with twisted conductors.

Knife 23 cut off the end of the twist, where it was clamped by the cams 16, and pass the twist to the solder.

Thus, the proposed device, in contrast to the known ones, makes it possible to improve the quality of twisting due to the uniform automatic tension of the wire during the twisting process.

Claims (1)

Invention Formula A device for twisting the cores of wires contained (its base and an actuator mounted thereon with a driving twisting head with a clamping mechanism, characterized in that, in order to improve the twist quality, it is equipped with a clamping device installed on the base with a possibility of swinging in the plane of the twist axis and spring-loaded relative to the base, and the clamping mechanism of the twisting head is made in the form of movable cams arranged at an angle of 90 relative to each other, each cam J / 18 IS Aifl g / g J 1 at IS Tsigm wadb 15 FIG. five Bb FIG. 6 g 1 figl FIG.