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AssigneeTu Bergakademie Freiberg
InventorsAndre Schmidt, Franz Fehse, Hans-Werner Schröder, Felix Stöhr, Gerd Kohlhase, Thomas Schmidt
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A method of manufacturing compacts and an arrangement for manufacturing compacts, in which the disadvantages of the state of the art are overcome and an efficient method and at the same time a simple construction and a simple implementation are achieved. This involves a method for manufacturing compacts, wherein after feeding the feedstock, pre-pressing into a pre-agglomerate using at least one pre-pressing punch or at least one stuffing screw and subsequently main pressing of the pre-agglomerate into a compact in at least one pressing die using at least one main pressing punch and subsequently ejection of the compact from the at least one pressing die are performed, pre-pressing, main pressing and ejection being performed in a mutually parallel working direction. This also involves an arrangement for manufacturing compacts, wherein at least one pressing die is provided in die tool receptacle with a feed for feedstock.
A method for manufacturing compacts by means of two die tool receptacles (2) rotating sequentially around a rotation axis (28), wherein the two die tool receptacles (2) are spaced from each other and the at least one main pressing punch (21) is drivable alternately by a common main pressing cylinder (22) or drive arranged between the die tool receptacles (2), wherein after feeding of feedstock a volume reduction of the feedstock (11) is performed and subsequently main pressing of the feedstock into a compact and ejection of the compact are performed,
An arrangement for the implementation of the process for manufacturing compacts, wherein two die tool receptacles (2) are provided, wherein at least one pressing die (3) is provided in each of the two die tool receptacle (2) rotating sequentially around a horizontal rotation axis (28) and each with a feed (10) for feedstock (11) and wherein the at least one pressing die (3) is able to be arranged or moved correspondingly to at least one pre-pressing punch (1), to at least one main pressing punch (21) and to at least one ejection punch (23), the working directions of the at least one pre-pressing punch (1), of the at least one main pressing punch (21) and of the at least one ejection punch (23) being parallel to each other, wherein a stationary counter-pressing plate (4) with a positioning punch (5) to correct the position of the pre-agglomerate in the pressing die (3) is provided on the side of the respective pressing die (3) or die tool receptacle (2) opposite, wherein the working direction of the positioning punch 5) is contrary to that of the pre-pressing punch (1), and/or a pivotable or movable counter-pressing plate (4) is provided on the side of the respective pressing die (3) facing the at least one pre-pressing punch (1) or die tool receptacle (2) and a stationary counter-pressing plate (4) is provided on the side of the respective pressing die (3) opposite the at least one main pressing punch (21), the at least one pressing die (3) being continuous in the working direction and a pre-pressing channel (7) leads into the respective pressing die (3), wherein the at least one pre-pressing punch (1) is arranged in or leads into at least one pre-pressing channel (7), wherein the two die tool receptacles (2) are spaced from each other and the at least one main pressing punch (21) is drivable alternately by a common main pressing cylinder (22) or drive arranged between the die tool receptacles (2).
Dependencies are inferred from the claim text.