| 摘要 |
A film blowing machine rotary die head for starch biodegradation material comprises a core die part and an external body part which are mounted coaxially. The core die part comprises a spiral core die (22) which is sheathed on a central shaft (15) and a rotation core die (20) which is fixed at the upper end of the central shaft (15); the spiral core die (22) and the rotation core die (20) are attached to each other; the central shaft (15) is driven by a motor (2) so as to drive the rotation core die (20) to rotate correspondingly to the spiral core die (22). The external body part comprises an internal die sleeve (21), an external die sleeve (19) and a mouth die sleeve (23). The internal die sleeve (21), the mouth die sleeve (23), the spiral core die (22) and the rotation core die (20) together form a flowing and forming passage. |
