Process and an apparatus for liquefying hot melt compounds

Verfahren und vorrichtung zum verfluessigen von schmelzmassen

Abstract

The invention relates to a process and an apparatus for liquefying hot melt compounds, in particular hot melt adhesives. For this purpose, a melting unit (1) with a storage tank (2), a pre-melt and main-melt tank (3, 4) and also a feeding and applying device (6, 11) is provided. The various heatable parts of the unit (3, 4, 10, 12, 13) are heated up simultaneously and dependently on one another, maintaining a predetermined maximum temperature difference. The specific heat outputs depend on the heating up of the least responsive part, usually the pre-melt tank (3). In the heatable parts of the unit (3, 4, 10, 12, 13) there are arranged thermocouples (18), which are connected to a control device (15), which controls the output of the heating elements (16) of the individual parts of the unit.

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Cited By (22)

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    DE-19820871-A1October 14, 1999Sm KlebetechnikVorrichtung zum Schmelzen von Kunststoffen, insbesondere Klebern
    DE-19820871-C2June 28, 2001Sm Klebetechnik Vertriebs GmbhVorrichtung zum Schmelzen von Kunststoffen, insbesondere Klebern
    EP-0743151-A2November 20, 1996Illinois Tool Works Inc.Schmelzvorrichtung
    EP-0743151-A3July 23, 1997Illinois Tool WorksAppareil de fusion
    EP-1773712-A2April 18, 2007Liquid Control CorporationProcede et appareil de distribution d'adhesif thermofusible
    EP-1773712-A4June 17, 2009Graco Ohio IncProcede et appareil de distribution d'adhesif thermofusible
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