DE1861249U - DEVICE FOR BEAMING PLASTIC WIRE. - Google Patents

Description

"Device for beveling plastic wires"

Molded structures made of plastic, e.g. wires or bristles, can be welded, i.e. heated above their Melting point, or connected by gluing with suitable adhesives v / ground. To achieve a durable connection However, it is necessary to create sufficiently large connecting surfaces, as the diameter of wires or The bristles are too small to have a sufficiently large bond area to represent. For connecting wires or bristles made of plastics, e.g. made of polyamides, polyesters, polyvinyl alcohol, Polyvinyl chloride, polyolefins, it is therefore necessary to prepare the ends to be connected, e.g. by chamfering, so that that sufficiently large joint surfaces are formed. · These joint surfaces must, however, be completely smooth and smooth must be exactly the same, as otherwise no connection is established.

For this reason, this preparation of the ends of plastic wires or bristles repeatedly encounters difficulties "when cutting, e.g. with a sharp knife, a straight cut cannot be achieved 'and" when grinding, especially with smaller diameters of the wires or bristles, no perfectly smooth surfaces are created. These disadvantages will be avoided by the Yorrichtung according to the innovation.

The device according to the innovation for beveling plastic wires or bristles is characterized in that there is a holding device for the plastic wire on a base plate or the bristle is attached, which consists of a metal block with a bore whose diameter is that of the plastic wire or corresponds to the bristle, and wherein the metal block is at a shallow angle to the longitudinal direction of the bore of the lower limit of the hole cut up to the upper edge is that the holding device has an inclined surface cutting through the bore for guiding a cutting tool owns.

Due to the Yorrichtung according to the innovation for beveling plastic wires or bristles, a smooth surface is achieved in each case, which in all with the help of the innovation Device beveled wires or bristles is completely the same and has the same angle. This will be Reached connecting surfaces that fit perfectly together.

The Yorrichtung according to the innovation for beveling plastic wires is explained in more detail by the attached figure. Figure 1 shows a side view of the device according to the innovation, wherein the metal block (2) is attached to a base plate (1). This has a hole (3) that is parallel

runs to the base plate (1). The surface of the metal block (2) is bevelled so that it forms a shallow angle forms with the bore (3) and this bore (3) cuts through to its lower limit. Through this device it is achieved that the plastic wire (4) through the not cut parts of the bore (5 and 6) is performed while it is exposed in the cut part of the bore and here by a cutting tool guided over the inclined surface of the metal block (2) in the through the Yorrichtung given angle is beveled.

It is of course possible to change the angle that the top Surface of the metal block with the hole forms, flatter or steeper and so to keep larger or smaller connecting surfaces to obtain. Figure 2 shows a plan view of the innovation according to Yorrichtung. In Figure 3 is a shown enlarged cross-section through the holding device and the plastic wire.

Claims (1)

? .k 538 042 * 8/18/62 Protection claim .: Device for beveling plastic wires or -bristles, characterized in that a holding device for the plastic wire is attached to a base plate, which consists of a metal block with a hole whose diameter corresponds to that of the plastic wire or bristle and wherein the metal block is at a shallow angle to the longitudinal direction of the bore from the lower limit of the The hole is cut up to the top edge so that the Holding device has an inclined surface which cuts through the bore for guiding a cutting tool.