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Microporous Pad Device for Fragile Material Handling

IP.com Disclosure Number: IPCOM000036918D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Chu, KL: AUTHOR

Abstract

A technique is described whereby a microporous pad and backup plate device can be attached to any end-of-arm industrial robot in order to handle flimsy and fragile materials.

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Microporous Pad Device for Fragile Material Handling

A technique is described whereby a microporous pad and backup plate device can be attached to any end-of-arm industrial robot in order to handle flimsy and fragile materials.

The microporous pad device is designed to be able to handle products during fabrication, particularly where it is important that no damage will occur to products being moved. The device is uniquely adaptable in the fabrication of printed circuit components, such as green sheets as thin as .004", where they must be handled in such a way so as not to damage the screened line patterns. It is important to note that the device is not restricted to just green sheet applications, but can be adapted to any type of application where extreme care is required in the handling of the product involved.

Microporous pad 10, as shown in the figure, consists of a high density polyethylene material whereby its minute pores interconnect throughout the structure. The size of a minute pore is typically sixty microns. Microporous pad 10 is attached to backup plate 11 so that air can be evacuated through the pores of the pad and the passages in backup plate 11. When vacuum is applied through end-of-arm tool 12, negative air pressure is produced at microporous pad 10, enabling fragile materials to be easily picked up without damage.

The edge of microporous pad 10 is sealed to prevent vacuum leakage and increase the vacuum-holding force. Since backup plate 11 consi...