DK142134B - METHOD AND APPARATUS FOR CLEARING ARTISTS - Google Patents

Description

(11) PUBLICATION MANUAL 14213 ^ DENMARK (si) tn «, ci.3 b 28 d 1/22 • (21) Application No 546/73 (22) Filed on 1 · £ ©!? · 19/3 (24) Live day Feb 1 1973 (44) The application presented and - the Act of disclosure published then O * SGp. 1 $ θ0

Dl THE RECTORATE OF,, M u PATENT AND TRADEMARKET (3 °) ^! ™ ™,

Feb 12 1972, 2206732, DE

(71) PEACE. KRUPP COMPANY WITH RESTRICTED RAFTUNG, D-43 Essen, Altendorfer Strasse 103 * I® · (72) Inventor: Gerhard Bode, Heinrich-Heine-Straese 25, D-28 Bremen, DE:

Gernot Leiding, OrTeansstrasse 51, D-28 Bremen, DE.

(74) Plenipotentiary in the proceedings:

The engineering firm Lehmann & Ree._ (64) Process and apparatus for cleavage of customer ternans.

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method and apparatus for cleavage of artificial stone pieces which are removed from a stone press and placed intermittently on a conveying apparatus in intermittent operation.

In the construction industry, there is an increasing need for split stones, with which, due to the uneven, natural-looking fracture surfaces, architectural effects on interior or exterior walls can be achieved.

In the known methods, the already cured artificial stones are individually applied to an apparatus that halves the artificial stone or divides it into several flakes. To this end, the artificial stones must be loaded manually or by special devices by the curing car and after the splitting again be assembled into transportable units. The known method of cleavage of artificial stone is very costly and considerably expensive the finished product.

142134 2

The object of the present invention is to rearrange the cleavage process in such a way that it can be incorporated into the fully automatic production of artificial stone in an economically sound manner.

This task is solved according to the invention by a method, as initially described, which is characterized in that a series of splitting knives are inserted into the spaces between the blanks and during a period of stoppage of the conveying apparatus are pressed against both sides into the blanks whereby the splitting takes place, and that the cleaved objects lying on each other are then hardened in a manner known per se. This results in the splitting of the items without intermediate manual handling and handling. The items are assembled in one unit throughout the process and then undergo the subsequent known manufacturing process.

The disclosed method is conveniently carried out by means of an apparatus having pairs of pivotal splitting plates parallel to one another extending over the length of one or more artificial stone elements and having outwardly wedge-shaped split moldings along their lower horizontal edge and which by means of wedge-shaped intermediate plates can be spread apart at their lower edges. By means of this apparatus simultaneous cleavage of the individual art pieces is achieved in a whole series of such articles, each splitting plate cooperating with the next splitting plate which abuts the opposite side of the art stone piece. This significantly shortens the production time of the split art pieces.

In the drawing, an embodiment of an apparatus for carrying out the method according to the invention is illustrated. In the drawing: FIG. 1 is a splitting apparatus, and FIG. 2 is a view of a split plate pair with intermediate plate in the spreading position.

In the splitting apparatus shown in the drawing, the artificial stone pieces 2 are removed from a press 1 and are set down on a conveyor 3 in series at intervals by means of a collection apparatus not shown.

The splitting apparatus has pairs of splitting plates 5 arranged side by side, arranged to be inserted into the spaces 4 between the individual artificial stone elements 2 in a series of artificial stone elements located on the conveyor 3. Each splitting plate pair of splitting plates 5 has along their lower horizontal edge outwardly wedge-shaped splitting strips 6. The splitting plates of the splitting plate pairs are pivotally mounted about each pivot shaft 7 and pressed by springs 8 in the direction towards each other. The pivot shafts 7 are mounted in a support frame 9 · The lockable support frame 9 can be adjusted in height so that the splice strips 6 can split the artifacts in any desired plane. The splitting itself is effected in the manner described below by means of wedge-shaped intermediate plates 10 arranged between each splitter plate's splitting plates 5 · It has been found to be sufficient if the intermediate plates 10 are not wedge-shaped in their entire height, but only at the lower middle plate end.

All the intermediate plates 10 are secured to a lifting frame 12. The lifting frame 12 can perform an upward or downward movement in the arrow directions 17 · In the downward movement, the wedge-shaped target plate end 11 is pushed downwardly past the lower edges of the splitting plate pair 5 so that the lower edges of the splitting plate pair 5 sam les. In this position, the splitting plates can be inserted into the gap 4.

In the upward movement of the lift saw 12, the wedge-shaped intermediate plate ends 11 force the splice plate pair 5 apart. The split moldings 6 penetrate the artifacts and cause a cleavage. After the splitting, the lifting frame 12 is lowered again, after which the downwardly wedge-shaped intermediate plate ends 11 allow the splitting plate pairs 5rs splitting plates again to move in direction towards each other by means of the springs 5.

A sawing device 13 arranged in the transport direction behind the splitting apparatus just described, consisting of a hydraulic cylinder fixed on each side of the conveying apparatus.

14 and a pushing plate 15 mounted on the end of the piston rods by means of the cylinder 144's piston shoot the cleaved artificial stone pieces 16 on the transport apparatus close to each other, so that they stand securely during the subsequent working steps known per se. If the artificial stone blanks are to be divided into more than two parts, or if thin flakes are to be made, two or more splitting devices can be arranged across the conveying apparatus 3, if the supporting frames 9 with the splitting plate pairs 5 are arranged in suitable splitting planes.