发明名称 |
EXTRUDERMATRIZE ZUM HERSTELLEN VON FLACHEN PRODUKTEN. |
摘要 |
An extrusion die has at least one distribution bore which communicates with a central bore which receives extruded material from an extruder. Each distribution bore extends perpendicularly with respect to the longitudinal central axis of the central bore and then terminates in a first chamber which has an substantially rectangular cross-section. Each first chamber receives the extruded material from its associated distribution bore and terminates in a counter-pressure distribution plate having a cross-section corresponding with that of the first chamber and having a plurality of bores uniformly distributed therein for forming extruded material from the first chamber into a plurality of strands which are received by a second chamber. Each second chamber has a substantially frustopyramidal profile wherein its cross-section tapers from a cross-section corresponding with that of the first chamber and counter-pressure distribution plate to a smaller substantially rectangular cross-section end for expanding and then for compressing and recombining the material of the strands. The end of each second chamber terminates in an extrusion slot which has a substantially rectangular cross-section corresponding with that of the end of the second chamber. Each extrusion slot terminates in an expansion control slot having a cross-section larger than that of the extrusion slot for expanding the material to its final form. |
申请公布号 |
DE3764139(D1) |
申请公布日期 |
1990.09.13 |
申请号 |
DE19873764139 |
申请日期 |
1987.02.27 |
申请人 |
SOCIETE DES PRODUITS NESTLE S.A., VEVEY, CH |
发明人 |
HECK, ERNST, CH-1026 ECHANDENS, CH |
分类号 |
B29C47/14;A21C11/16;A23P1/12;B29L7/00;B30B11/22 |
主分类号 |
B29C47/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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