| 摘要 |
<p>A process and apparatus for forming from string a simple loop knot either through or about a product. While individual products may be hand-fed to the apparatus, the apparatus is adapted to perform the process continuously, rapidly and automatically upon a product in the form of a continuous flexible web utilizing a single, continuous, external string source. In an exemplary embodiment the apparatus comprises a rotating drum carrying a plurality of identical heads, each head operating upon a segment of the product web to form individual loop knotted products therefrom. Although the number of operations performed by each head upon the product web may be varied, in the exemplary embodiment to be described each head is provided with operating instrumentalities to pleat the web, clamp the pleated web, seal the web at a glue stripe printed thereon, meter the correct length of string, cut the metered string, pierce the pleated web, form a simple loop knot through the pierced hole and about the side of the web, cut the web and display a finished individual product by its string for pick-up by a discharge transfer means.</p> |
