Method and apparatus for laminating thermoplastic sheets

Details Method and apparatus for laminating thermoplastic sheets Method and apparatus for laminating thermoplastic sheets

1989-08-10

1990-08-07

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156322, 1563099, 1563809, 156563, 156566, 294 61, 4147896, 4147907, 4147934, B32B 502

Patent

active

049465511

ABSTRACT:
A plurality of thermoplastic sheets are laminated into a laminated assembly, which is then pressed into a laminated assembly. First, the sheets to be laminated in one cycle are heated while the sheets are arranged in a juxtaposed relationship in the order in which they are to be laminated. The heated sheets are penetrated with needles to detachably hold the sheets while keeping the sheets in the juxtaposed relationship. A support member which supports the laminated assembly is moved below the sheets held and relatively to the sheets in a direction in which the sheets are arranged in the juxtaposed relationship, the sheets are released from the needles onto the support member to stack the sheets thereon into the laminated assembly while the support member is being moved relatively to the sheets. The support is then delivered into a shaping die assembly. The laminated assembly on the support member which has been delivered into the shaping die assembly is charged into a charging position in the shaping die assembly, and the support member is removed from the shaping die assembly. The laminated assembly is then pressed into a shaped product with the shaping die assembly after the laminated assembly has been charged into the charging position.

REFERENCES:
patent: 3978571 (1976-09-01), Orlando et al.
patent: 4124242 (1978-11-01), Canner
patent: 4688837 (1987-08-01), Ball et al.

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