DE414611C - Method and device for the production of a smooth surface of impregnated line materials and textile cords - Google Patents

Description

GERMAN EMPIRE

ISSUED
ON JULY 4, 1925

REICH PATENT OFFICE

PATENT LETTERING

CLASS 21c GROUP

Cable factory and wire industry Akt-Ges. in Vienna.

Patented in the German Empire on March 19, 1924.

As is known, the sheath consisting of a braid or braid is made of Cord or textile cords with a wax mixture, Asphalt, paraffin or the like soaked in order to make the textile cover more durable and To give life span and a smooth and shiny surface.

So far, the cords have been pulled through the impregnating compound and, after it has cooled, wiped off several times with a cloth after the desired surface homogeneity and the desired shine. This procedure is time consuming and costly,
of uneven thickness.

These disadvantages are avoided by the invention.

The one to be impregnated; with high gloss too

and gives a surface layer of string or the like Passage through a tank filled with the impregnating mass in the so-called centrifugal run (Fig. Ι and 2), through which the adhering superfluous mass in a warm state is thrown off. Then the cord passes the scraping (Fig. 3 and 4), which distributes the already solidified mass evenly on the surface and in the joints the cord drifts. Finally, the cord goes through the polishing run (Fig. 5 and 6), which gives the cord its smooth, shiny appearance.

The drawing illustrates the spin run in vertical section in Fig. 1 and in plan in Fig. 2. A bearing in the bearing shell c on a ball bearing b and connected to the pulley «.

The funnel-shaped circulating body widened downwards carries a guide sleeve e through which the cord / is guided on the inner wall near its lower edge. If the centrifugal barrel rotates, the centrifugal force acts on the cord as a result of its eccentric guidance, which throws off the excess mass.

By changing the rotational speed of the spin cycle and the viscosity the impregnating mass can have any desired degree of impregnation of the cord casing and any desired layer thickness can be obtained.

The cord treated in this way is now depending on the nature of the impregnating mass and depending naturally or artificially cooled according to the temperature prevailing in the work area and then passed through the Schropplauf, which is shown in Fig. 3 and 4 in section and plan view is shown.

The pulley d runs on bearing parts a, b, c and carries on its underside a sheet metal jacket e, in the lower end of which a bearing / sits. In the camp / is an adjustable; guide sleeve g by means of ring nut h | secured. Between the pulley d j and the guide sleeve g , wires / with j interposed tension springs k are stretched diagonally j and form a flexible caliber at their intersection \ through which the cord to be treated is guided and freed from the j excess solidified impregnation compound j. By turning the guide sleeve g , the wire caliber can be adjusted to any desired dimension. The scraping can also be regulated by changing the tension of the springs k .

After leaving the Schropplaufes, the line is again artificially or naturally cooled depending on the temperature conditions and reaches the smoothing run illustrated in Fig. 5 and 6 in vertical section or in plan view. In the smoothing process, the surface of the cord is polished / polished by means of heated rotating straightening irons, which are diametrically opposite and are attached to angle levers d which are mounted on the pulley c to swing around bolts e. As a result of the effect of the centrifugal force on the centrifugal masses bearing free lever arms of the angle lever d , the rotating straightening irons / are pressed against the running cord.

The contact pressure can be regulated by changing the rotational speed. In order to obtain a glossy surface of the cord cover, the guide tube h

heated by means of a gas flame at the nozzle k. The air rising through the duct / around the guide tube h is heated 60 and heats the straightening irons /. When the machine is at a standstill, the gas flame is set to small by means of the tap /. With increasing rotational speed, the lever of the gas tap / by the swinging support lever d of a straightening iron / is gradually turned into the open position and thereby the gas supply for heating the straightening iron is automatically regulated. The guide tube h and the 7 ° straightening irons / can also be heated in another way.

Claims (5)

Patent Claims: 1. Method of making a smooth Surface of impregnated line materials and textile cords, characterized in that the impregnated Vein is guided through a centrifugal, scraping and polishing run. 2. The method according to claim 1, characterized in that the on the impregnated Adhering excess mass in a warm state due to eccentric guidance and circumferential movement of the The vein is thrown off in the spin cycle (Fig. 1 and 2). 3. Device for performing the method according to claim 1, characterized in that that the vein is in the Schropplauf (Fig. 3 and 4) by means of diagonally arranged under spring tension Wires (/) that form a caliber (s) at the crossing point from the excess solidified impregnation compound is released. 4. Apparatus for performing the method according to claim 1, characterized in -that the impregnated wire runs a circumferential polishing run (Fig. 5 and 6), whose on rocking levers (d) seated, advantageously heated straightening iron (/) as a result of the Lever acting centrifugal force nestle against the wire and smooth and polish its surface layer. 5. Apparatus according to claim 4, characterized in that the gas supply for heating the straightening irons (/) is automatically regulated as a function of their rotational speed by means of the rocker arm (d) actuated by the centrifugal force. 1 sheet of drawings.