Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1984-07-26
1985-12-10
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B21C 4700
Patent
active
045574286
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a wire laying arm provided with a roller guide for the wire, wherein the roller guide is curved along a curve in space and is formed by a plurality of profiled rollers disposed at the laying arm. A wire laying arm of this type is known from DE-PS No. 2,814,143. This laying arm has two rows of profiled rollers which are arranged successively in each row so that they form the only guide means for the wire which moves between the two rows. This laying arm is complicated and additionally has the drawback that, due to differences in load, the rollers exhibit different degrees of wear.
SUMMARY OF THE INVENTION
The invention is based on the problem of providing a wire laying arm of the above-mentioned type which permits, at relatively little expense, accurate and low-wear wire guidance. The problem is solved, according to the invention by the provision of a wire laying arm composed of roller guides formed by a plurality of rollers which are individually mounted and are spaced from one another along the convex side of a curve, each roller being disposed at a location where, in the roller arrangement, the curve has its greatest curvature.
The invention brings the advantage that exclusively a rolling friction is produced with a small number of rollers. Nevertheless, the novel laying arm is suitable not only for laying thin wires but particularly also for laying thicker wires, even those exceeding known rolled wire thicknesses. And it is possible to adapt the roller diameter to different respective loads and conditions.
It is further possible to vary the distance between the individual rollers. It is here of particular advantage that this distance is less in the regions of greater curvature of the curve in space than in the other regions, thus improving the guiding effect.
For threading the wire, it is advisable to place guide elements for the wire between the rollers at the convex side of the curve in space at a distance therefrom so that the guide elements extend close to the rollers. This, moreover, provides additional security against the wire popping out.
The same is accomplished by the fact that the laying arm is designed as a tube, with the tube being provided with recesses into which the profiles of the rollers engage at least to the extent that, at least in the region of each recess, the wire is spaced from the tube wall to both sides of the associated roller. This configuration of the laying arm permits a particularly simple, expedient and safe design which also makes possible an exchange of such a laying arm for one of the laying tubes which are frequently used in existing systems and which, due to the strong friction against the tube wall, encountered therein are subject to rapid wear.
BRIEF DESCRIPTION OF THE DRAWING
In the drawings, which will be explained in greater detail below, two embodiments of the invention are represented schematically.
FIG. 1 is a front elevational view of a laying arm designed as a tube; FIG. 1;
FIG. 3 is a cross-sectional view of the laying arm in the form of a tube in the region of a roller; and
FIG. 4 is a front elevational view of another embodiment of the laying arm according to the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, the tube-shaped installation arm 1 of a wire reel (not shown) receives the drawn wire coming from a rolling mill at its upper end 2 which is rotatably mounted at the wire reel and, in the course of the curve in space, shapes the wire into endless coils which exit at the lower end 3 of the arm.
As is evident from FIG. 1, eight profiled rollers 4 are arranged at laying tube 1, which has an inner diameter of 40 mm, so as to be distributed over the length of the tube; the rollers are spaced apart between 250 and 300 mm from center to center, with the smaller spacing here being applicable to the region of the laying tube in which it has the greatest curvature. At its convex side, in the region of the rollers, laying tube 1 is provided with recesses 5 in which roller
REFERENCES:
patent: 694003 (1902-02-01), DeLamater
patent: 2723525 (1955-11-01), Blaisdell
patent: 2868265 (1959-01-01), Williams
patent: 3097812 (1963-07-01), Nye et al.
patent: 3282304 (1966-11-01), Coleman
patent: 4189106 (1980-02-01), Weis
patent: 4332155 (1982-06-01), Pariseau
Fried. Krupp Gesellschaft mit beschrankter Haftung
Jillions John M.
LandOfFree
Wire laying arm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wire laying arm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire laying arm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-53953