| 摘要 |
<p>A thermoforming apparatus and method for forming a hollow article from two sheets of plastic, in which first and second female molds (28, 38) are mounted to lower and upper forming press platens (24, 26) to be facing up and down respectively, with a plug assist (32, 38) aligned with each mold. A preheated sheet is advanced into alignment with each mold and the press platens closed to form one part (A1, B1) of the article in each mold. After opening of the platens, the mold and a retained part is retained is shifted on the platen to become aligned with the lower mold and retained part, an insert (46) being emplaced into the lower parts (B1) as by a robot (48), during shifting of the one mold, and the press platens again closed to bring together and fuse the oppositely facing parts to form the article.</p> |
