Browse Prior Art Database

Automatic Memory Disk Separation and Unloading System

IP.com Disclosure Number: IPCOM000047237D
Original Publication Date: 1983-Oct-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Howe, SM: AUTHOR [+2]

Abstract

A conventional method to remove stress from aluminum memory disks being manufactured is the so-called "flat bake process". During this process, disks are stacked in a set, clamped together and baked. As a result of the clamping and high temperature, the disks stick together. The present article discloses a pneumatic system for separating the disks after the flat bake process. Disks 1 are removed by a pick-up head 2 connected to a vacuum source 3 which moves up and down by a pneumatic double-acting cable cylinder system 4. Cylinder system 4 is controlled by pneumatic circuits 5, 6 including a four-way directional valve 7 and a two-way stop control valve 8. Pick-up head 2 has the ability to sense when it touches the top of the stack of disks 1, and contains air blast jets to blow air at the inside of the disk to be picked up.

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Automatic Memory Disk Separation and Unloading System

A conventional method to remove stress from aluminum memory disks being manufactured is the so-called "flat bake process".

During this process, disks are stacked in a set, clamped together and baked. As a result of the clamping and high temperature, the disks stick together. The present article discloses a pneumatic system for separating the disks after the flat bake process. Disks 1 are removed by a pick-up head 2 connected to a vacuum source 3 which moves up and down by a pneumatic double-acting cable cylinder system 4. Cylinder system 4 is controlled by pneumatic circuits 5, 6 including a four-way directional valve 7 and a two-way stop control valve 8.

Pick-up head 2 has the ability to sense when it touches the top of the stack of disks 1, and contains air blast jets to blow air at the inside of the disk to be picked up. The disks are separated and picked up by applying an upward pull, by cylinder system 4, to the top disk after it has been gripped by pick-up head 2. The combination of the upward pull and the air blast to the inside of the disk at the disk interface surfaces frees the top disk from the stack. A programmable controller automatically controls cycling of the machine, according to the following sequence: a. The controller picks valve 7 to drive cylinder

system 4 down. Vacuum is turned on.

b. When the touch switch makes (indicating that the

stack is reached), cylinder system 4 reverses direction...