SU95876A1 - Apparatus for surface painting asbestos cement tape - Google Patents

Description

The known devices for surface dyeing of asbestos-cement tape at its exit from a pappan, made in the form of a powder dye-containing bunker, with a casing located under the tape, in which the feeder is placed to extract the dye from the bunker, have disadvantages consisting in, also frequent damage to devices, as their work is based on vibration.

In the described device, these drawbacks are eliminated due to the fact that under the feeder there is a rotor designed to spray the dye over the surface of the mite.

The drawing shows a diagram of the device.

The device consists of a bin / in which the dye mixture is prevented.

Under the hopper / drum 2 is installed, the surface of which is covered with slightly corrugated or smooth rubber. During the painting process, drum 2 is set in motion by means of crank mechanism 3, ratchet 4 and gear wheel 5. As the drum 2 rotates, the paint mixture enters the space bounded by the inner surface of the casing 6 and the outer surface of the drum 2. In the casing under the drum 2 shaft 7 with blades 8 made of flat iron or set of steel wires mounted on it. When the shaft is rotated, the dye mixture supplied by the drum 2 is picked up by the blades 8, partially maintained in a weighted state, and partially thrown on the moving cloth 9 of the web forming machine, due to which the raw asbestos cement tape formed on the felt is dyed.

The apparatus is mounted on a tape forming machine (papshina) in front of the vacuum box 10.

To prevent dust from escaping into the environment, soft-rubber curtains 11 are installed at the bottom of the casing.

Due to the uniformity of nutrition of the dye mixture over the entire width of the coloring layer, can be achieved with the help of drum 2, and is equal to