| 摘要 |
<p>An installation for packing a load (1) in a section of sheath of supple plastics material (2), comprises means (6) for supplying sections of flattened sheath, and means for opening the downstream end of each section of sheath. A pleating device is provided for progressively pleating part of each section of sheath, this device comprising rotated members applied against the sheath and against support ramps located inside the sheath. A covering frame (11 or 12) whose section is larger than the cross- section of the load to be packed is adapted to receive the section of sheath. The pleating device is offset laterally with respect to the load to be packed and means are provided for displacing the covering frame (11, 12) horizontally and vertically between the load and the pleating device so as to receive a section of sheath, guide it above the load, lower it around the load, and finally return it empty to the pleating device. The sheath section may either be pleated on the covering frame or transferred thereto in pleated condition from an independent support. The installation shown in Fig. 1 may be utilized to cover each load with two sheath sections of different plastics material, alternatively it may be used to cover loads having different cross- sections. <IMAGE></p> |
