Method for manufacturing laminate-molded products and apparatus therefor
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United States of America Patent
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Jul 28, 1998
Grant Date -
N/A
app pub date -
Oct 30, 1995
filing date -
Apr 30, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is to improve a laminate molding method and a laminate-molding apparatus for manufacturing molded products that have an external appearance of excellent quality. For this purpose, according to a molding method, by which a mold clamping device (3) laminates sheet of skin material (Mm) and a core resin (200), the tension of the sheet of skin material Mm, which is inserted into a cavity (9) between a clamped fixed metal mold (11) and a clamped movable metal mold (12) and is laminated by the movable metal mold (12), is varied, continuously or in a stepped manner, in consonance with the insertion amount of the sheet of skin material (Mm). The laminate-molding apparatus comprises a skin material holding device (40) that is attached to the mold clamping device (3), a detector (31) that detects a stroke or a time at the time of clamping the movable metal mold (21), and a skin material holding controller (50) that, upon the receipt of a detection signal, outputs to the skin material holding device (40) a command for altering the tension of the sheet of skin material.
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