| 摘要 |
<p>Moulded plastics articles have blanks of sheet material, e.g. as labels and/or diffusion barriers, incorporated into them during moulding, a plurality of the articles being moulded in each moulding operation. At least sufficient blanks are cut at a time for each moulding operation. The blanks, preferably of a flimsy plastics film material, are positively held discretely from when they are cut until they are positioned for location in the mould cavities. As cut by dies (A, B, C, D), the blanks may be at different spacings from the mould cavities (4), their spacing then being adjusted to suit the cavities as they are held after cutting and/or collected for transfer to the mould. Alternatively, a group of blanks (Y, Y1, Z, Z1) may be cut in which the number of blanks is a multiple of the number of mould cavities (4) and there are sets of blanks in the group each having blanks of corresponding spacing and configuration to the mould cavities. The sets are transferred in turn to the mould for successive moulding operations.</p> |
