US2267804A - Wire wrapping machine - Google Patents

Description

Dec. 30,1941. 0. THIEL WIRE WRAPPING MACHINE Original Filed Aug". 25, 1940 E w mu TD MA C H MT m m E mm w INVENTOR.

Patented Dec. 30, 1941 T.

WIRE WRAPPING MACHINE Otto Thiel, Detroit, Mich.

Original application August 23, 1940, Serial No. 355,182. Divided and this application March 19, 1941, Serial No. 384,080

2 Claims.

This application relates to apparatus for wrapping a ribbon of paper or the like around a wire, in overlapping turns, and is a divisional of a prior application, Ser. No. 355,182, filed August 23, 1940.

There have been known machines which wrap ribbon on an advancing wire, with the wire being coated with adhesive. Such machines, however, were so constructed that the overlapping turns of paper ribbon adhered only to the wire, and not to one another. Wire wrapped in this manner did not prove satisfactory for certain specific purposes, because the paper would tend to unravel from the wire. Consequently, attempts were made to provide apparatus and method whereby both surfaces of the paper ribbon were coated with adhesive. In one known attempt, the machine was so constructed that both surfaces of the paper ribbon were coated with adhesive, before it was fed to the wire. For many reasons, this did not prove satisfactory.

An object of the invention, therefore, is to provide an apparatus and method such that successive turns of the ribbon will adhere, not only to the wire, but also to already wrapped turns of the paper ribbon.

In the apparatus and method herein disclosed, the paper ribbon is not coated with adhesive before it is fed to the wire. Instead, the whole of one surface of the paper ribbon is caused to scrape along the adhesively coated advancing wire and that surface of the paper ribbon thus becomes coated with adhesive. The paper ribbon is so directed that during the wrapping operation, that surface of the paper ribbon is wrapped partially around the wire and partially around the dry surface of a paper turn already wrapped on the wire and consequently the paper turns will adhere to one another, as well as to the wire. Thus the object so long desired is attained simply and conveniently.

The apparatus of my invention is illustrated diagrammatically in the accompanying drawing. Referring to this drawing, it will be seen that the machine there disclosed comprises a rotary head Ill, through and along the axis of which advances a non-rotating wire I I. Carried by the head and projecting forwardly from it in such a way that-it is parallel to but spaced from the path of advance of the wire, is a guide rod l2.

A ribbon spool I4 is loosely mounted on a spindle 15 which is also carried by the head in any suitable manner. A second guide element I6, is indicated, and this also is supported by the head [0.

It is understood that before the wire ll leaves the head I 0 it is well coated with adhesive of any suitable character. I

No coating means is shown, since any suitable coating means may be employed, such as that shown at d in the patent to Cook No. 1,441,561 January 9, 1923; and it may be stationed at any point along the wire ahead of the point :r where the ribbon ,l'l first engages the wire.

, As the ribbon of paper or the like, referenced ll, leaves the spool l4, it is guided by the guide element I6 so that the upper surface a thereof scrapes along the advancing wire I l at the point a: on its way to the guide rode l2, which then directs the paper so that part of that surface a of the ribbon engages the wire at the point 11 to be wrapped around it, and part engages the dry surface 12- of an already wrapped turn of paper, to be wrapped around the paper in an overlapping spiral.

In the machine indicated, all of the parts shown are carried by the rotary head I0, so as to rotate with it around the advancing wire II which does not rotate. Thus the wrapping operation is completed.

By virtue of the engagement of the whole of surface a of the paper ribbon IT, with the adhesively coated wire at point 1:, before the surface a of the ribbon is wrapped around wire and paper, a paper to paper adhesion is obtained, even though both surfaces of the paper ribbon are dry as they leave the spool [4.

Now having described the apparatus and method herein disclosed, reference should be had to the claims which follow for a determination of the invention.

I claim:

1. In a machine for wrapping a wire or the like with overlapping turns of a ribbon of paper or the like, the combination of a head, through which the wire advances, a rod projecting forwardly from said head and carried thereby, said rod being parallel to but spaced from the path of advance of the wire, a ribbon spool for feeding ribbon to the wire, then to the rod, and then to the wire again, and means for coating the wire with adhesive, as it advances, before the ribbon engages it, the apparatus being arranged to so direct the ribbon that the whole of one surface thereof engages the wire at a point in the advance of the wire, to be coated with adhesive from the wire, and then to direct the other surface around the rod and then to direct the coated ribbon surface around the wire.

2. In a machine for wrapping a wire or the like with overlapping turns of a ribbon of paper or the like, the combination of a head, through which the wire advances, a rod projecting forwardly from said head and carried thereby, said rod being parallel to but spaced from the path of advance of the wire, a ribbon spool for feeding ribbon to the wire, then to the rod, and then to the wire again, and means for coating the wire with adhesive, as it advances, before the ribbon engages it, the apparatus being arranged to so 10

Images