| 摘要 |
<p>A protective film 31 is applied over the faces of formed plastics sheet material to protect the sheets in transportation and storage. The film 31 is led from one of a number of reels 33, 34, 35 over a guide and tensioning roller 32 and applied to a sheet 36 between a pair of nip rollers 37, 38. The reels 33, 34, 35 which are of different width to accumulate sheets 36 of different size are mounted on a common carriage 40 having rollers 41 which run along corresponding transverse tracks 42 to position the film 31 relative to the sheet 36. The side edges of the sheet 36 are trimmed by cutting knives 50, 51 and the waste sheet trim 52 is reground. The side edges of the sheet 36 are de-burred by de-burring rollers 55.</p> |
