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AssigneeFocke & Co. (GmbH & Co.)
InventorsReinhard Hoppe, Ralf Barkmann, Stefan Harms, Christian Schönherr
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The invention relates to a valve particularly for transferring small portions of glue onto folding tabs of (cigarette) packs. A closing element (15) of the valve is actuated by different elements, that is to say, is moved between the open and closed positions, on the one hand by two permanent magnets (24, 25) arranged a short distance from each other and having aligned poles such that the closing element is permanently kept in the closed position by the permanent magnets (24, 25). On the other hand, an actuating element, which is configured as an electromagnet (23), acts to move the closing element (15) into the open position in a controlled way by overcoming the closing forces. The closing element (15) is designed in a particular way, that is to say, with channels extending along the outside in the longitudinal direction for the medium or the glue.
A valve for fluid media, such as a glue nozzle or glue valve, comprising:
The valve as claimed in claim 11, further comprising cooling means within the valve housing (11) adjacent to the electromagnet (23) or to its winding.
The valve as claimed in claim 15, wherein the valve housing (11) is of substantially rectangular or square cross section, and four heat pipes (38) are arranged respectively in the region of corners of the valve housing (11).
The valve as claimed in claim 15, wherein the heat pipes (38) are tubular and project with an extension, namely with a free pipe section (39) on a top side, from the valve housing (11), transversely directed fins (40) being fitted in the region of the pipe section (39) for the dispersion of the heat.
Dependencies are inferred from the claim text.