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A Small Pitch Flat Pack Lead Sizing And Reform Tool

IP.com Disclosure Number: IPCOM000059073D
Original Publication Date: 1988-May-01
Included in the Prior Art Database: 2005-Feb-15

Publishing Venue

IBM

Related People

Authors:
Nazak, MH [+details]

Abstract

Fig. 1 illustrates a flat pack placed in the tool with the tool in the open position, and cylinder 14 extended as shown in Fig. 2. The part is located automatically by coin bar 3, shown in detail in Fig. 3. The tool is then activated. As cylinder 14 starts to retract, coin bars 1 move inward to vertical coining position above the part; as cylinder 14 continues to retract, coin bars 1 move perpendicular to base 5 drawing the part down onto coining support bars 2. At this point the part lead is supported top and bottom. As cylinder 14 continues to retract, the part leads, under constant pressure, are drawn down into coin bar 3, which sizes, forms, and coins the part leads when coining support bars 2 bottom out on base 5. At this time sufficient pressure is applied to the leads by coin bars 1 to coin and reform the leads.