Moulding of synthetic plastics sheet material

Details Moulding of synthetic plastics sheet material Moulding of synthetic plastics sheet material

B - Operations, Transporting

65

D

18/1066, 18/1189

B65D 43/02 (2006.01) B29C 51/00 (2006.01) B29C 43/16 (2006.01)

Patent

CA 1049723

ABSTRACT OF THE DISCLOSURE This invention discloses a novel mould for the moulding of plastics material lids provided with rims. The mould is characterized by two one-piece mould parts which clamps the heated plastics sheet material and form the rim by a clamping and shearing effect. The remainder of the lid preferably is formed by pressure forming using gaseous medium. The mould is particularly useful in the moulding of foodstuff containers, for example, containers for beverages and provides the advantages of injection moulding without the disadvantage of high tooling costs as encountered in the prior art.

211338

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