| 摘要 |
<p>The invention relates to a machine for making recipients by blowing, especially recipients made up of thermoplastics, such as polyethylene-terephthalate (PET) by processing some previously heated pieces. The machine for making recipients by blowing, by both axial and radial spatial deformation, for this purpose using previously heated pieces, consists of a fixed semi-die (22) and a mobile semi-die (23), the actuation being carried out by a knee mechanism, inside of the die cavities there being located the pieces characterized in that, the axial deformation is carried out by using some blowing pipes (34), provided at the lower side with a termination (35) and at the lower extremity with blowing orifices (a), at a low blowing pressure p1 with the value of 3-9 bar, the machine being also provided with a cross-beam (42) driven by a pneumatic cylinder (40), the cross-beam carrying two high pressure sealing-blowing heads (45) provided with joint packings (46) and the high pressure supplying nozzles (48) wherethrough there is introduced a high blowing pressure p2, with a value of 15 to 25 bar.</p> |
