Browse Prior Art Database

Adhesive Applicator

IP.com Disclosure Number: IPCOM000086187D
Original Publication Date: 1976-Aug-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Magno, R: AUTHOR [+2]

Abstract

This device automatically applies a pattern of adhesive to a discrete area of a workpiece. In the operation shown, the adhesive is applied in a discrete rectangular pattern to a spool for subsequent attachment of a web, not shown, to the spool. However, with only slight modification, any discrete pattern of adhesive can be applied to any workpiece.

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Adhesive Applicator

This device automatically applies a pattern of adhesive to a discrete area of a workpiece. In the operation shown, the adhesive is applied in a discrete rectangular pattern to a spool for subsequent attachment of a web, not shown, to the spool. However, with only slight modification, any discrete pattern of adhesive can be applied to any workpiece.

The system shown brings together adhesive and a mask in the vicinity of a workpiece at which point the adhesive is applied to the workpiece. In operation a masking web 2, in this case paper, is drawn from unwind station 4, incrementally, by incremental nip drive 6. Tension on paper web 2 is controlled by vacuum column 8. Prior to reaching the nip drive the web 2 passes through punching assembly 10. Punching assembly 10 is synchronized with incremental nip 6 so that after each incremental advance of web 2, while the web is at rest, punching assembly 10 is activated to pierce the web and remove a portion of the web to provide a mask corresponding to the desired adhesive pattern, in this case a rectangle.

Simultaneously with the motion and punching of web 2, the adhesive web 12, is drawn from adhesive unwind station 14 also by incremental nip drive 6. The motion and tension of the adhesive web 12 is controlled by vacuum column 16. Adhesive web 12 consists of a releasable adhesive coating supported by an easy release backing. Prior to adhesive web 12 reaching the nip drive 6 a scoring punch 18, synchronized with the nip drive 6, scores the adhesive coating on web 12 without penetrating the release backin...