DE631824C - Device for electroplating smaller objects - Google Patents

Description

The invention relates to a device for electroplating smaller objects.

There are already Galyanisiervorrichtungen known in which the objects to be treated be held on their base by magnetic force.

However, while in the known devices as a drum-shaped body Cathode is used, are two metal disks on a shaft according to the invention arranged, the laterally by a narrow edge of the panes leaving free insulating washers are covered; there is a soft iron core between the two metal disks, on which a solenoid is wound, the ends of which lead to brush contacts.

Compared to the known electroplating devices with a drum-shaped cathode the invention gives the advantage that the cathode area is significantly smaller in her, so that considerable savings in power consumption and coating metal can be achieved. With the device according to the invention can also easily not be iron Handle objects. In this case, the two metal disks only need to be bridged by a magnetizable rod, which at the same time can have holders for holding non-iron objects.

Another embodiment of the invention is that several are arranged one behind the other Magnetic disks are used, around their free edges endless narrow iron bands are placed on which the objects to be treated are held.

The invention is illustrated by way of example in the drawing; show it:

Fig. Ι an embodiment in side view,

Fig. 2 and 3 a further embodiment in "front and side view."

In Fig. Ι denotes / the trough, k are two metal disks mounted on a corrugation ¹ , which are covered on each side by a narrow edge leaving free insulating disks kr ; k ^s represents a soft iron core on which a solenoid k ^ is wound, the ends of which lead to brush contacts k ⁵ . k ^u denotes the gear wheel driving the device; K ¹ is the anode connection and k ^{s is} the cathode connection.

The small objects to be treated are placed against the outer surfaces of the disks k ^{not covered by the insulating washers & 2} and held there by magnetic force. As a result of the rotation of the disks k

the objects then pass through the bath and can be removed again from the panes A on the opposite side. ¹ ^ If not iron objects dealt with ?; are to be, the magnetic shit benA can be bridged by a 'magnetizable rod I equipped with holders I ¹ ; * In the design according to Fig. 2 and 3, three pairs of

to metal disks of the type shown in Fig. 1 are used. To the covered also by insulating metal discs A ² A are laid endless flexible Eisenbänderp ¹ and p ^2, on which the articles to be treated are held by magnetic attraction. . ■ -.

Claims (3)

Patent claims: i. Device for electroplating smaller objects, in which these are held on their base by magnetic force, characterized in that ^{two metal disks (A) are arranged on a shaft (A 1} ) which are laterally exposed by a narrow edge of the disks (A) letting insulating washers (A ² ) are covered, while between the two metal disks (A) there is a soft iron core (A ³ ) on which a solenoid (A ⁴ ) is wound, the ends of which lead to brush contacts (A ⁵ ). 2. Apparatus according to claim 1, characterized in that several magnetic ^disks (A) are used to put the endless narrow iron strips (ρ Ί, ρ-) , of which the objects to be electroplated are held. 3. Apparatus according to claim 1, characterized in that in the case of the treatment of non-iron objects, the metal discs (A) are bridged by a magnetizable rod (I) which is equipped with holders (l ¹ ) for receiving the non-iron objects. 1 sheet of drawings "