Browse Prior Art Database

Loader Stop and Release Device

IP.com Disclosure Number: IPCOM000074798D
Original Publication Date: 1971-Jun-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Livesey, AG: AUTHOR

Abstract

Semiconductor modules are passed through a processing station, such as a plurality of testing units and conveyed to loading apparatus according to the results of the processing for loading into plural channel trays. The channels of a tray are sequentially loaded while the tray is in a fixed position using a movable shuttle bar assembly indexable from channel-to-channel. This device senses the presence of the N module in a channel and activates a module stop to prevent the further loading of modules. When indexing is completed to the next channel, the stop is released permitting the loading of that channel.

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Loader Stop and Release Device

Semiconductor modules are passed through a processing station, such as a plurality of testing units and conveyed to loading apparatus according to the results of the processing for loading into plural channel trays. The channels of a tray are sequentially loaded while the tray is in a fixed position using a movable shuttle bar assembly indexable from channel-to-channel. This device senses the presence of the N module in a channel and activates a module stop to prevent the further loading of modules. When indexing is completed to the next channel, the stop is released permitting the loading of that channel.

Modules are conveyed from a processing station and using a variable guide spring 1 are delivered to an entrance chute 2 for loading into channels CH1-CH5 of tray 3. Each channel holds N modules. In loading channel CH3 through chute 2, the presence of the N module is sensed prior to the module leaving chute 2, activating stop device 4. The stop device is included in shuttle bar assembly 5 which is indexable from channel-to-channel. As the N module passes into channel CH3, the H+1 module is prevented from entering the channel.

To retain the N+1 module within shuttle bar assembly 5, stop device 4 is positioned above the minimum height of a column of N modules. A portion of chute 2 is replaced by a spring force activated platen 6. The spring is indicated at 7. Upon sensing the N module in a channel, a force actuator 8 releases the spr...