| 摘要 |
A film thermoforming method includes inserting a film prefabricated material need to be thermoformed into a lower die of a thermoforming device. The thermoforming device includes an upper die movable to-and-fro opposite to the lower die based on the shape of a film product. The upper die moves downwards gradually to press from a predetermined manufacturing height and then moves upwards to release the prefabricated material by a cycle mode, and the method decreases gradually the manufacturing height of the upper die for thermoforming the film product in a predetermined time. The present method can improve the precision and the quality of the film product, and can decrease largely the manufacturing time.
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