| 摘要 |
A main arm 4 carries, on the one hand, a contact element 32 bearing against the article carried by a former M in front of a winding flange 60 and, on the other hand, a hook 15 having a depression 20 and having an air-blowing internal channel 23, the hook bearing against the former M behind the flange 60, such that a jet of air causes the flange 60 to be unwound until a residual flange is created in the depression 20, which thus causes the article to be gripped and makes it possible to demould it by turning back along the former M. <IMAGE>
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