DE689864C - Method and device for pulling electrical conductors into insulating hoses or tubular hollow bodies - Google Patents

Description

Method and device for pulling electrical conductors into insulating tubes . or tubular hollow bodies The drawing in of wires or threads in elongated makes tubular hollow body, especially if the diameter of this hollow body is not too big, difficulties may arise. These difficulties will be solved by a method according to the invention.

The invention relates to a method for pulling in electrical Conductor in insulating hoses or tubular hollow bodies, in which the hose is pulled over the conductor, which is stretched out at a suitable length. The invention exists now that one end of the conductor is bent into a hook or on a hook-shaped one Wire piece attached and the hook is placed over a pulley, whereupon the Hose is pulled over the hook on the ladder. The invention is on hand the drawing explained in more detail, which shows an embodiment of a device according to shows the invention, which is intended, for example, the lead wire of a shielded air-space-insulated high-frequency line in which the carrier for the jacket to pull in the insulating material filament.

The device consists of a guide track r, which in the illustrated embodiment has a length of about 50 m and along which the wire 2 coming from the supply drum 3 is stretched. Of the. The beginning of the wire is expediently attached to a winding drum q arranged at the end of the guideway. or attached to the end of the piece of wire already drawn into the helix .r wound onto this drum or fixed with the aid of a quickly releasable clamping jaw. The end of the stretched wire is bent in the shape of a hook or, if its stiffness is insufficient for this, attached to a piece of wire bent in the shape of a hook or the like 5 and this hook is placed over a pulley 6 arranged at the beginning of the guideways. A supply drum is now used over this hook? the coil 8 is drawn onto the wire 2. In addition to the guideway <i, an endless cord, chain or the like is stretched out on which a driver io, e.g. B. a spring clip is attached, in which the beginning of the coil is inserted after being slipped over the hook. . This clamp guides the helix from the beginning of the guideway to the end and thus pulls it over the tensioned wire.

From. the cord g is simultaneously the pulley 6 through a same shaft seated cord pulley of the same diameter driven so that it rotates with a peripheral speed equal to the hose speed, which prevents the hose from rubbing on the roller.

As soon as the whole stretched length of the wire with a corresponding Piece of coil is coated; the end of the wire is taken from the pulley 6 removed or released from the hook 5, the coil at the appropriate point cut off and the wire with the helix is wound onto the winding drum4. A new piece of wire is then stretched out. This is expediently done in such a way that däß the beginning of the newly unclamped wire at the end of the finished product to be wound up attached and thus stretched out at the same time when the drawn-in wire is being wound up will.

The device is operated by two people who, without their Leaving place, sit at each end of the lane. A back and forth in order to Pulling the hollow body is thus eliminated.

A device according to the drawing can be drawn in in the same way of wires, threads or the like in differently designed tubular hollow bodies. It can be designed differently than that according to the respective needs illustrated embodiment. So z. B. it may be appropriate to begin and end the guideway to be arranged side by side, so that only one person can operate is required. For this purpose, the guideway is divided into two parallel Parts divided by a curve section of suitable radius with each other are connected. The endless belt carrying the driver is in this case via corresponding Deflection rollers out. It can also be used to reduce friction between hollow bodies and guideway instead of the guideway = an endless conveyor belt can be used. In this case, the driver can be attached to the conveyor belt, whereby the endless string g becomes superfluous.

Claims (6)

PATENT CLAIMS: _. A method for pulling electrical conductors into insulating tubes or tubular hollow bodies, in which the tube is pulled over the conductor stretched out in a suitable length, characterized in that one end of the conductor is bent into a hook or attached to a hook-shaped piece of wire and the hook over a pulley is placed, whereupon the tube is pulled over the hook - onto the ladder. 2. The method according to claim i, characterized in that the deflection roller with a peripheral speed accordingly the hose speed is driven. 3. Device for performing the Method according to claim i, characterized by a guideway along the Thread or wire is stretched out, and a driver guided next to it, for. B. a spring clip in which the beginning of the tubular hollow body is attached. 4. Device according to claim 3, characterized in that at the beginning of the guide track a pulley is arranged, over which the hook-shaped bent end of the extended Wire or a hook-shaped piece of wire attached to the end of the stretched wire o. The like. Is placed. 5. Apparatus according to claim 3, characterized in - that there are two drums at the beginning of the guideway; of .whose the wire and the tubular hollow body are handled separately, and that at the end of the Guide track a drum is arranged on which the wire i with the coated tubular hollow body is wound together. 6. Device for implementation of the method according to claim i, characterized by an endless conveyor belt, the i carries and transports the hollow body along its entire length.