초록 ▼

The method and apparatus for fabricating honeycomb expandable insulation panels disclosed herein includes a method and apparatus for folding a continuous thin film of flexible plastic material into a uniform, open faced tubular configuration and for heat setting the folds in permanent sharp creases.

The method and apparatus for fabricating honeycomb expandable insulation panels disclosed herein includes a method and apparatus for folding a continuous thin film of flexible plastic material into a uniform, open faced tubular configuration and for heat setting the folds in permanent sharp creases. It also includes a rotatable rack apparatus for continuously stacking successive lengths of the tubular formed plastic film one on top of another on flat surfaces and adhering them together in the form of a neat, uniform expandable panel of interior honeycomb cell configuration.

대표청구항 ▼

The method of fabricating expandable honeycomb material, comprising the steps of: continuously folding a continuous length of tubular material at diametrically opposite sides into a flat tubular form passing said length of tubular material over a heated surface and heating the tubular material unifo

The method of fabricating expandable honeycomb material, comprising the steps of: continuously folding a continuous length of tubular material at diametrically opposite sides into a flat tubular form passing said length of tubular material over a heated surface and heating the tubular material uniformly across its entire transverse cross section and then passing said length of tubular material over a cold surface and cooling the tubular material uniformly across its entire transverse cross section, while continuously maintaining a uniform tension on said tubular material as it passes over the heated and cold surfaces and while maintaining the folds during heating and cooling by pressing a plurality of rollers against the folded tubular material on said heated and cold surfaces; applying an adhesive material longitudinally along the length of said folded tubular material; stacking the continuous length of tubular material on a rack that has an elongated flat surface in such a manner that the tubular material is stacked on the flat surfaces in a plurality of adjacent layers one on another with the adhesive material positioned between each layer; allowing the adhesive material to adhere one layer to another to form a unitary stack on said flat surface; and cutting a straight section of the unitary stack on the flat surface away from the remainder of the stacked tubular material and removing it from the rack.