DE1427779A1 - Process for processing the surface of prismatic bodies and device for carrying out the process - Google Patents

Description

Process for processing the surface of prismatic bodies and device for carrying out the process

The invention relates to the machining of the surface prismatic Body Of brittle materials, such as lightweight concrete or the like, with parallel opposite long sides, around these bodies to give the desired dimensions and / or shapes.

In the construction industry, there are ever greater demands on the appearance and the dimensional accuracy of the building materials put to post processing of erected walls as much as possible. The aim is to be able to erect walls in such a way that they immediately follow the erection without any noteworthy revenge work or painted can be wallpapered, or, in the case of an outside wall, this without further ado to be able to provide modern plastering «

In the lightweight concrete industry it is possible to produce structures with great dimensional accuracy to manufacture. However, it cannot be avoided that the dimensions of the bodies are unequal during the subsequent steam curing due to changes in the raw material from which the bodies are made. In order to meet very high demands on dimensional accuracy In order to be sufficient, attempts have been made to process the surfaces of the bodies close to steam hardening all bodies are given the desired shape at the same time.

809812/0435

BAD OR «3M * A1.

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'When processing surfaces and shaping materials with Brittle surfaces, such as lightweight concrete, have to touch the processing plant eye special demands are made. to: a processed Bodies with completely smooth and flat surfaces, as well as with greats and sharp edge lines too. obtain"

A method is known in which the material with two cooperating Milling heads (Swedish patent no. 152.026).

According to this prior art, it is possible to process steam-hardened lightweight concrete with an acceptable surface structure is obtained. But there is still the task to be able to perform a four-sided machining at the right angle and exact dimensions can be achieved. Tests have shown that the Machining according to the methods used in the processing of ice is not possible leads to success.

With the invention, the object is achieved: the surfaces are more prismatic Lightweight concrete bodies, the opposite long sides of which are parallel, to edit, keeping the desired angles between the sides and to get exact dimensions.

The method according to the invention is characterized in that the body during the present tense of a. Y-shaped are supported Stütztisoh and at the same time of the body to be milled to the pages, which are opposed to the abutting of the support surface sides of the body, as well as those as occurring sites, and that thereafter the body is rotated about its longitudinal axis in between, ^r so that the already milled sides are now carried by the support table, after which a new milling is carried out. ■

The invention is shown schematically in a schematic diagram Embodiment shown for example.

A T-shaped support table 11 is attached to a foundation 10 an angle of 90 between the support surfaces 12 and 13.-The support surfaces consist of longitudinal, essentially parallel slides

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0OS312 / OA35 ÖAD original

NEN 14ι which are attached with support iron 15 and worn. The rails form an acute angle with the imaginary feed direction »Through the arrangement of the rails according to the invention, the gate part is achieved, that the lightweight concrete body while passing through the V-shaped formed table lie tightly against the support sides.

Between the support surfaces 12, 13, i.e. on the bottom of the V-shaped support table, an endless chain 16 is arranged as a conveyor device, which runs over two rollers 17 and 18, both of which are in the The longitudinal direction of the V-shaped support table can be displaced so that the chain 16 can be loosened or tensioned as required. At the Chain drivers 19 are provided, the one facing the feed direction Sides are provided with a cave 20. Two milling cutters 21 and 22 are arranged on a stand, each of two milling cutters working on the same plane Milling heads 23, 24 and 25, 26 exist. The milling will be every driven by motors 27 for themselves. Every milling machine can be rotated and moved. arranged bar, so that the desired angle and the distance to the support surface of the V-shaped support table can be set.

The device operates as follows

The conveyor chain 16 is set in motion and the motors 27 are started « A lightweight concrete body is placed on the support table in such a way that two sides of the body rest against the support surfaces 12, 13. The body is guided by the driver 19, 20 against and through the milling cutters 21 and 22 and milled the sides of the body opposite the support sides. Then the body is lifted for another milling its longitudinal axis rotated and guided back into the table so that the already milled sides are now supported by its support surfaces » It is advantageous to have two devices of the type described one behind the other to switch.

By designing the V-shaped support table with rails as support surfaces a significant, unexpected advantage is achieved, namely the lightweight concrete body, even if it is during the first milling

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1427778

have uneven side surfaces, rest against the support surfaces and during of the present tense always obtained a perfect accuracy * It can be assumed that the rails, while the lightweight concrete body against the milling is pushed, break through all possible bumps and search for a resulting plane «

System?

1 drawing

809812/0435

Claims (1)

Process plus processing of the surface pri »aati» oii »r ISrper ■ with opposite parallel long sides, ^ »special τοη daapf-hardened leased concrete blocks, thereby marked »da ·· the body during the embossing τοη a V-shaped Sttttsfläohe are supported and the bodies are milled on the sides, which lie opposite those lying against the floor area, "like something * at "howohen these two sides Torkö" a side, wanaoh der Body among other things soaped feänesaehae is rotated and the »ohes froze Pages are now worn by the handbag, and another one wisd. ■ ■■ ^: - -. · - ■■ - ■ ". _; ^: '' ^: Jf, direction for implementation # de · Verfj &hrene aaeh ■ it least · * wei Präaeeinheiten _r which each eu · SWEi counter-rotating Fräskopfen consist, characterized} as ·· a T-föraige support surface (II) is provided, in which the angle "Wiechen the sides of the Stütsfliehe gielah the angle awischen the Stütseeiteu dee pt, processing prisaatiaohen KSrpera is · _R 5 are formed by fatentanspruoh Terriohtung * 2, characterized gekennseiahöÄt, dal "the sides of the Stützfläohe au · arranged in parallel, upstanding rails (14), the direction in eioh ά.9Τ feeding · eretreoken" 4 * Torrioktvuit after & «n fateataneprliofeeE f and J _# dfcdtarofe gekfna« »i« h-Bet, d ··· die SehieneÄ {U) * lt i »ri * iührw *« iriohtuag «ii ** fi φ A «A * · * wi« * fη 4en »eiien» eite _R de »5tüt * fliohe ti» · f $ *** W * ¥ * i *) i * te «t M · bucket enAlenem fette (H) » eeteht , m der * ita * iim * J · (19) ▼ • rgeeehe »eimi» BATH 0O90t2 / O435