| 摘要 |
A device for plastic plates thermoforming comprises, in a respective assembled and operative condition, a bell means (3), an upper first frame means (4) supporting the bell means (3) and equipped with lock means (6) for removably fixing an upper first framework means (7) abutting on the lower opening of the bell means with the interposition of a seal means (8). Said device (1) further comprises a second frame means (11), sited below the first frame means (4) and the framework means (7), supporting a forming mould (13) for forming the plates. The device (1) further comprises a plurality of vertical column means (15) each having the top end fixed to the first frame means (4) and the lower end provided with a first connecting means (17) removably lockable to a corresponding second connecting means (18) fixed to the second frame means (11). Each first connecting means (17) is equipped with a plurality of shoulder means (20, 21) upward oriented and sited at a predetermined mutual distance and each second connecting means (18) is provided with, per each shoulder means (20, 21), at least one corresponding bolt means (23, 24) each provided with a respective matching surface (26, 27) downward facing and each shifted by a corresponding actuator for alternatively matching with the respective shoulder means (20, 21). The distance between adjacent shoulder means (20, 21) is different from the distance between adjacent matching surfaces (26, 27). |
