DE358443C - Form box bent from sheet steel - Google Patents
Form box bent from sheet steelInfo
- Publication number
- DE358443C DE358443C DEV16856D DEV0016856D DE358443C DE 358443 C DE358443 C DE 358443C DE V16856 D DEV16856 D DE V16856D DE V0016856 D DEV0016856 D DE V0016856D DE 358443 C DE358443 C DE 358443C
- Authority
- DE
- Germany
- Prior art keywords
- sheet steel
- form box
- box bent
- box
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
Die Formkasten, wie dieselben beispielsweise bei der Herstellung kastenloser Formen auf Formmascbinen verwendet werden, sollen bei größter Widerstandskraft gegen den beim Pressen der Form entstehenden Sanddruck möglichst leicht sein. Es sind 'daher Formkasten mit der Ouerschnittsform, wie beispielsweise in Abb. 2, 3, 4 und 5 dargestellt, bekannt geworden. Nun haften aber diesen Ouerschnittsformen mit dem flachen Ober- und Unterflansch verschiedene Mangel an, die durch die neue in Abb. 1 dargestellte Querschnittsform behoben werden.The molding box, like the same for example in the production of boxless molds are used on molding machines, should with the greatest resistance to the at When pressing the mold, the resulting sand pressure should be as light as possible. There are 'therefore molding boxes with the cross-sectional shape, as shown for example in Fig. 2, 3, 4 and 5, known. Now, however, these cross-sectional shapes with the flat upper and lower flange various deficiencies caused by the new cross-sectional shape shown in Fig. 1 be resolved.
Bei den Kasten mit Flanschen nach Abb. 2, 3 oder 4 werden während des Gebrauchs die Flanschen uneben, so daß dieselben nicht rein abgestrichen werden können. Der liegenbleibende Sand wird beim Pressen festgepreßt und läßt sich nachher nicht mehr abstreichen. In the case of the box with flanges according to Fig. 2, 3 or 4, the Flanges uneven, so that the same can not be wiped clean. The one that remains Sand is pressed down when it is pressed and cannot be wiped off afterwards.
Ein weiterer Nachteil dieser ebenen Flanschen ist, daß sie nicht genau auf den gußeisernen Modellplatten aufliegen und sich so Sand zwischen die Modellplatte und den Kastenflansch schieben kann, der festgepreßt wird und entweder an der Modellplatte oder am Kastenflansch haftenbleibt, wo er durch Abkratzen entfernt werden muß.Another disadvantage of these flat flanges is that they do not exactly fit on the cast iron Model plates lie on top and so sand can be pushed between the model plate and the box flange, which is pressed tightly and sticks either to the model plate or to the box flange, where it goes through Scraping must be removed.
Erfindungsgemäß wird die aus Stahlblech gepreßte Querschnittsform (Abb. i) für den Abziehkasten beispielsweise mit Ecken b, c, d, e versehen, wodurch die oben angeführten Mangel behoben sind. Die Zeichnung gibt den Querschnitt in etwa natürlicher Größe wieder. Das Abstreichen erfolgt hier nur über die obere Kante c, c, und der Kasten steht nur mit der Kante c, c auf der Modellplatte. In beiden Fällen kann also kein Sand mehr an dem Kasten oder an der Modellplatte haftenbleiben.According to the invention, the cross-sectional shape pressed from sheet steel (Fig. I) for the pull-off box is provided, for example, with corners b, c, d, e , whereby the above-mentioned deficiencies are eliminated. The drawing shows the cross-section in approximately natural size. The wiping takes place here only over the upper edge c, c, and the box is only with the edge c, c on the model plate. In both cases, no more sand can stick to the box or the model plate.
Der obere wie der untere Vorsprung sind gleichzeitig nach innen gerichtet, um die Sandform während des Abhebens von der Modellplatte zu tragen.The upper and lower protrusions are simultaneously directed inwards, around the To carry the sand mold while it is being lifted off the model plate.
Soll eine Verbindung der übereinanderge- « legten Flanschen erfolgen, so kann dieselbe an den Punkten x, y durch Nietung oder elektrische Punktschweißung ausgeführt werden.If the superimposed flanges are to be connected, this can be done at points x, y by riveting or electrical spot welding.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV16856D DE358443C (en) | Form box bent from sheet steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV16856D DE358443C (en) | Form box bent from sheet steel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE358443C true DE358443C (en) | 1922-09-09 |
Family
ID=7575941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV16856D Expired DE358443C (en) | Form box bent from sheet steel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE358443C (en) |
-
0
- DE DEV16856D patent/DE358443C/en not_active Expired
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