B - Operations – Transporting – 31 – F
Patent
B - Operations, Transporting
31
F
18/1009
B31F 1/20 (2006.01)
Patent
CA 1113218
ABSTRACT OF THE DISCLOSURE The present invention provides an apparatus for press- forming a planer board of corrugated paperboard into an at least partly curved board, the corrugated paperboard being of the type utilizing a thermoplastic resin as the adhesive to bond paper liners to a corrugated paper medium, the apparatus comprising: a hot-press fitted with a heatable and stationary female die and a heatable and vertically movable male die above said stationary female die; a table standing beside said hot-press, the top of said table being wide enough to support thereon said planer board substantially horizontally; a pair of rails extending horizontally alongside said hot-press and said table; a wheeled carrier which can move on said rails in either direction and has board-holding means for taking up said planer board from the top of said table, holding said planer board during movement of said carrier on said rails and laying said planer board on said stationary female die; and at least one electric heater attached to said carrier in such an arrangement that said planer board held by said carrier is spaced downwards from said electric heater and can be preheated by said electric heater to such an extent that said thermoplastic resin in said planer board softens before said planer board is placed on said stationary female die.
311255
Marks & Clerk
Nissan Motor Co. Ltd.
LandOfFree
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