| 摘要 |
PURPOSE: To simply after the order of layers of laminated long body and the number of layers without a long stopping time by replaceably disposing a distribution block between an inlet block and the co-extrusion block, and variously connecting distribution channels to feed channels for each distribution block. CONSTITUTION: This apparatus comprises an extruder 2 and a co-extruder 3. A co-extrusion block 5 has a lamination channel 8 and a control channel 9 opened in the channel 8. In this case, the control channel has a control element 5 for various flow rates of thermoplasticized plastic, and an exit nozzle tool 6 connected to the channel 8. A distribution block 12 disposed between the block 4 and the block 5 includes a plurality of replaceable blocks. The individual blocks 12 each has a feed channel 13 corresponding to the channel 7 and a distribution channel 4 corresponding to the channel 9 and connected to the channel 13 different at the distribution channels (a), (b) and (c) to form a different layer of a long body 1. For example, the block 12 indicated by (b) has only two channels 13 and three channels 14, the long body 1 of three layers is extruded. |
