POWDER FEEDING APPARATUS WITH A FILLING SHOE AND MASK

A method and apparatus for feeding a die, wherein a filling shoe (7) cyclically is driven into a feeding position above a die opening (2) embedded in the die (1) and into a non-feeding position situated away from the die opening (2) above the die's upper side (6) and wherein during the feeding...

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Bibliographische Detailangaben
1. Verfasser: SILBERMANN, MICHAEL THOMAS
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:A method and apparatus for feeding a die, wherein a filling shoe (7) cyclically is driven into a feeding position above a die opening (2) embedded in the die (1) and into a non-feeding position situated away from the die opening (2) above the die's upper side (6) and wherein during the feeding position the pulverized or granulated powder (11) is being filled from the filling shoe (7) into a hollow space, which is built in the die opening (2) above of at least one punch (3 - 5) being moveable within it in an upward and in a downward direction. In order to prevent mixing of old powder with the new powder when the opening of the die is moved over again being already partly fed with powder it is suggested to put a mask (12) with at least one mask opening (13, 13a) above the die opening (2) before or during the moving of the filling shoe (7) over the die opening (2).