Method and device for coating adhesive surfaces of fixing...

B - Operations – Transporting – 05 – D

Patent

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Details

B05D 1/12 (2006.01) B05C 19/00 (2006.01) B05D 5/10 (2006.01) C09J 5/06 (2006.01)

Patent

CA 2522388

The invention relates to a method for coating adhesive surfaces of fixing elements with a hot-melt adhesive, and to a device for carrying out said coating method. Base surfaces (5) of recesses (2) are formed by tappets (6), whereby the lateral walls thereof are displacably guided in the recesses (2). A displaceable container (9) which is used to fill up the adhesive powder in the recesses (2) is arranged next to the recesses (2). The side edges (10) of the container (9) cover a working plate (1). A slit (11) which is used to receive the securing element (4) is arranged on the other side of the recesses (2), said slit being provided with continuous holes (12) for the tappets (6). A pressure stamp (13) provided with a pressure plate (14) which is lowered onto the securing element (4) is arranged over the recesses (2). A heating station (15) which is used to heat the securing element prior to heating the recesses (2) to the desired heating temperature is arranged at a distance from the slits (11).

L'invention concerne un procédé pour appliquer un adhésif fusible sur des surfaces de collage d'éléments de fixation, ainsi qu'un dispositif permettant de mettre en oeuvre ce procédé. Selon l'invention, des surfaces de base (5) d'évidements (2) sont formées par des coulisseaux (6) dont les parois latérales sont guidées de façon coulissante dans lesdits évidements (2). Un réservoir mobile (9) contenant l'adhésif en poudre à introduire dans les évidements (2) est placé à proximité desdits évidements (2). Les arêtes latérales (10) du réservoir (9) passent sur une plaque de travail (1). De l'autre côté des évidements (2) est disposé un chariot (11) sur lequel est placé l'élément de fixation (4), ce chariot comportant des trous de passage (12) dans lesquels peuvent être introduits les coulisseaux (6). Un poinçon de pression (13) pourvu d'une plaque de pression (14) destinée à être descendue sur l'élément de fixation (4) est placé au-dessus des évidements (2). Avant d'être acheminés au-dessus des évidements (2), les éléments de fixation (4) sont chauffés à la température voulue dans une station de chauffage distante du chariot (11).

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