DE1237479B - Drying device for ceramic moldings in a casting plant - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

B28c

German KL: 80 a -54/10

Number: 1237479

File number: N 22038 V / 80 a

Filing date: September 1, 1962

Opened on: March 23, 1967

The invention relates to a drying device for ceramic briquettes in a casting plant, which at the same time is used to cut off the lost wreath and to blur the interface. It is a device is already known in which the moldings poured into plaster of paris molds on a circulating device wander through a chamber and dried in the same by hot air blown into it will.

The subject matter of the invention points towards the be ίο knew device on the one hand the advantage that the hot air is not blown into a chamber, but through an insertable nozzle directly into the mold, which significantly shortens the drying process and the drying system can accordingly be made shorter, and has on the other hand the advantage that a hollow shaft is arranged around the supply pipe for the hot air, on which a Knife to cut off the lost wreath and a sponge to plaster the interface in front of ao are seen, which together with the hot air nozzle by a centering device in an axial position to the cavity of the moldings located in the mold can be brought. This makes an otherwise additionally required This saves working process and enables the briquettes not only to be dried, but also at the same time plastered can be removed from the form.

The invention is shown in the drawing in an exemplary embodiment.

Fig. 1 shows a schematic representation of the casting plant in side view and

F i g. 2 the device for blowing in the hot air with knife and sponge on an enlarged scale, also in the side view.

The in F i g. 1, a turnstile 1 carrying the casting molds was taken as the basis, with which the same are guided past the device according to the invention. After the excess mass has been poured out at station A, the casting molds 2 are brought into a horizontal position with their central axis in the exemplary embodiment, whereupon their circulation is interrupted. Of course, the device can also be oriented vertically in order to be able to introduce it into a shape that is open at the bottom.

The device according to the invention now comes into operation. For this purpose, a geared motor is used 3 hollow shaft 4 set in rotation by e.g. one of the known eccentric drives, which is not shown in the drawing, moved horizontally and inserted into the mold, until the knife 5 removes the lost wreath drying device for ceramic bricks in a casting plant

Applicant:

Netzsch brothers machine factory, Selb (Bay.)

Named as inventor:

Siegfried Fickentscher, Erkersreuth

cut and the sponge 6 has plastered the interface. Then the shaft is withdrawn so far that neither sponge nor cutting knife are in engagement and through the nozzle 7 provided with a sieve basket, hot air from a blower 8, which is connected to the hollow shaft by means of a flexible hose 9, is blown into the mold so that it stiffens the molding is accelerated. The cutting device is brought into the correct position relative to the casting mold by a special centering device 10 so that it does not damage the same when cutting.

Claims (2)

Patent claims: 1. Drying device for ceramic bricks in a casting plant in which the casting mold cyclically by a transport device at a filling station, tilting station, drying station a hot air blower, removal station and an insertion station for the empty molds in the Circuit are bypassed, characterized in that a hot air nozzle (7) in the mold (2) can be inserted and, by means of a centering device (10), in an axial position relative to the mold cavity can be brought and that a knife which can be rotated around the hot air supply (5) and a rotatable sponge (6) are arranged. 2. Drying device according to claim 1, characterized in that a hollow shaft (4) is arranged around the feed pipe for the hot air where the sponge (6) and the knife ■. ■ ■■: :::> · :; 7Q ₉ 520/249