Electroplating barrel with current to carrying bearing arm - has barrel trunnion with axially insulated trunnion bushes having electrical contact surfaces over limited angular range

摘要

Electroplating barrel is supported by barrel trunnions on fixed bearing arms, with at least one bearing arm being current-carrying and the associated trunnion having a number of staggered radial contact pins connected by contact rails to contact bars, buttons, segments or similar in the interior of the drum. The barrel trunnion (4) supported on the current carrying arm (5) has the same number of bushes (9) as contact pins (6), which are axially insulated from each other and have electrical contact surfaces with the current carrying arm (5) only over a given angular range, the contact pins (6) being connected in the remaining area (12). The non-conducting areas of the trunnion bushes (9) are formed by recessed areas or by insulation layers. USE/ADVANTAGE - For rotary plating barrels, and ensures that only the contact elements in the lower part of the barrel, where the plating goods are processed, receive current.