Metal working – Method of mechanical manufacture – Electrical device making
Patent
1983-08-04
1986-03-25
Rosenbaum, Mark
Metal working
Method of mechanical manufacture
Electrical device making
29762, 148 1, 414771, H01R 4300, B23P 1900
Patent
active
045774013
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a process for separating a suspension bar from an electrode that is vertically suspended by this bar and that comprises, besides this bar, an electrolytic plate and one or several suspension loops fastened to the plate, the suspension bar extending through these loops, according to which the suspension bar is first relieved of the weight of the plate by causing the latter to rest on a support and then the position of the bar is changed with regard to the position of the plate so as to separate the bar from the rest of the electrode.
BACKGROUND ART
A similar process is described in U.S. Pat. No. 3,499,207. In this known process, in order to relieve the suspension bar of the weight of the plate, the electrode is brought from the vertical position into an inclined position and it is kept in this position by causing the upper part of the electrode, i.e. the suspension loops, the suspension bar and the upper part of the electrolytic plate, to rest against an inclined face of an upper support element and by causing the lower edge of the electrolytic plate to rest on a lower supporting element. In order to change afterwards the position of the bar with regard to the position of the plate, the bar is set moving by striking on one of its ends by means of a striking device, mounted on one side of said inclined face and it is kept moving by means of an extracting roller mounted on the other side of said inclined face. While moving the bar is supported by said extracting roller and by several support rollers mounted on the inclined face between the striking device and the extracting roller. When the suspension bar is separated in this way from the rest of the electrode, the lower support is caused to turn and the electrode deprived of its suspension bar falls on an evacuating conveyor.
In order that this known process leads to the expected result, namely the separation of the bar from the rest of the electrode, it is necessary that, when the electrode reaches said inclined position, the suspension bar is engaged with the extracting roller and that it exposes one of its ends to the striking device. Now, it may happen that at that moment the suspension bar is not engaged with the extracting roller and/or does not expose one of its ends to the striking device, for instance, when the lower edge of the electrolytic plate, which rests on the lower support element and which is supposed to be smooth, is deformed by electrolytic incrustations, or when for any reason the suspension loops of the electrode, which are supposed to have the same length, have a substantially different length, or even when for any reason the height of the electrolytic plate, which is supposed to be always the same, differs substantially from the normal height. Hence, this known process lacks reliability, since at the moment the suspension bar is relieved of the weight of the plate, the position of this suspension bar can vary substantially from one electrode to the other.
The aim of the present invention is to provide a process as defined before that avoids the drawback of the aforesaid known process.
SUMMARY OF THE INVENTION
According to the invention, in order to relieve the suspension bar of the weight of the plate, the electrode is brought from its vertical position into a substantially horizontal position, in which its plate is caused to rest on the support, and, while the electrode is brought to the substantially horizontal position, it is kept suspended by its suspension bar so that this bar occupies a predetermined position at the moment the plate is caused to rest on the support and the electrode is hence no longer suspended by its bar. In doing so, one can then change the position of the bar with regard to the position of the plate in the best conditions, whatever the state of the lower edge of the plate, the length of the suspension loops and the height of the plate may be.
In order to change the position of the bar with regard to the position of the plate, it is advantageous to retain
REFERENCES:
patent: 2944655 (1960-07-01), Griswold
patent: 3198669 (1965-08-01), Pickering et al.
patent: 3479721 (1969-11-01), Wennberg
patent: 3499207 (1970-04-01), Sasaki
Dompas John M.
Tobback Hubert J.
Verhoeven Constant T.
Arbes Carl J.
Metallurgie Hoboken-Overpelt
Rosenbaum Mark
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