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Adjustable Dead Rail for Solder Machine

IP.com Disclosure Number: IPCOM000050587D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Chrinian, AE: AUTHOR

Abstract

An adjustable dead rail for a solder machine is described that eliminates the need for a dual adjustment of the dead rail on the machine during setup for change in run of printed circuit cards. A typical known unit permits a solder wave breadth only necessary to accommodate the solder drive to dead rail width and/or the bottom area of an individual card to be soldered. This arrangement is efficient, as a minimum solder wave minimizes dross buildup. However, the unit does not eliminate the need for manual adjustment which can be time consuming. It also relies on personal judgment for proper alignment of one dead rail with another. A safety hazard exists since the adjustment needs to be made in the center of the solder pot and it overly exposes the operator to lead fumes.

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Adjustable Dead Rail for Solder Machine

An adjustable dead rail for a solder machine is described that eliminates the need for a dual adjustment of the dead rail on the machine during setup for change in run of printed circuit cards. A typical known unit permits a solder wave breadth only necessary to accommodate the solder drive to dead rail width and/or the bottom area of an individual card to be soldered. This arrangement is efficient, as a minimum solder wave minimizes dross buildup. However, the unit does not eliminate the need for manual adjustment which can be time consuming. It also relies on personal judgment for proper alignment of one dead rail with another. A safety hazard exists since the adjustment needs to be made in the center of the solder pot and it overly exposes the operator to lead fumes.

The adjustable dead rail described here, sometimes referred to as a "unison in-line adjusted dead rail", shown separately in Fig. 1 and as installed in Figs. 2 and 3, eliminates the problems set forth above. With this device, there is no need for the operator to manually adjust at the station. The dead rail adjustment is made with a hand wheel, and the station is set up automatically and with precision. In Fig. 1, the device includes a full length dead rail mount block 1, a threaded rod 2, two nuts 3 and 4, flat washers 5 and 6, and a slide plate mount block 7. These elements are also shown mounted in position in the machine in Figs. 2 and 3. In particular,...