Browse Prior Art Database

5»-Inch Diskette Test Handler System

IP.com Disclosure Number: IPCOM000062655D
Original Publication Date: 1986-Dec-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 3 page(s) / 103K

Publishing Venue

IBM

Related People

Donald, GW: AUTHOR [+4]

Abstract

This article describes a 5»" diskette test handler system including diskette loader assemblies for unloading diskettes and delivering them, on demand, to a vacuum paddle on the diskette unloader assembly. The system passes the diskettes through a test drive and loads them after sorting. The production of diskettes is an extremely high volume operation, and all diskettes must be tested prior to their releasing. Therefore, any mechanism to test diskettes must be capable of testing and sorting them at a high rate and with minimal operator intervention. The diskette handling system disclosed herein is capable of automatically handling and testing 5»" diskettes. Previous "bulk test systems" were developed and built to handle 8" and 4»" diskettes.

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5»-Inch Diskette Test Handler System

This article describes a 5»" diskette test handler system including diskette loader assemblies for unloading diskettes and delivering them, on demand, to a vacuum paddle on the diskette unloader assembly. The system passes the diskettes through a test drive and loads them after sorting. The production of diskettes is an extremely high volume operation, and all diskettes must be tested prior to their releasing. Therefore, any mechanism to test diskettes must be capable of testing and sorting them at a high rate and with minimal operator intervention. The diskette handling system disclosed herein is capable of automatically handling and testing 5»" diskettes. Previous "bulk test systems" were developed and built to handle 8" and 4»" diskettes. However, these systems have utilized rotary table indexing systems to load and unload diskettes, whereas the 5»" diskette system utilizes an IBM 7535 Robotic System to unload diskettes directly into four output cannisters in accordance with test data generated by the test drive.

(Image Omitted)

The present complete system is shown in the side view of Fig. 1 and the top view of Fig. 2. It includes seven major sub-assemblies and electronic controls. The pneumatic controls, associated cables, and plumbing are not shown. An IBM Personal Computer (PC) is also housed on the system to provide a means of programming the IBM 7535 Robotic System as well as tracking test data. The program utilized to operate the system is Machine Programming Language (MPL). Diskettes are presented to and removed from the mechanism by operators using diskette cannisters [1]. In operation the major sub-assemblies function as follows: 1. The diskette loader assemblies are located on the left and right sides of the system and are

designed to provide a means of unloading

cannisters of finished diskettes and delivering

them, on demand, to a vacuum paddle on the

diskette unloader assembly. This is accomplished

via an auto-level diskette buffer [2] and a

pneumatic transfer mechanism with a vacuum pickup

head. 2. The diskette unloader assembly performs

several handling functions. Once the diskette has

been delivered to the vacuum paddle, it is held in

place by a vacuum and the paddle is rotated to a

vertical position, and vacuum is released allowing

the diskette...