B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
190/26, 18/914
B29C 53/34 (2006.01) B29C 57/12 (2006.01) B65D 1/02 (2006.01)
Patent
CA 2031798
ABSTRACT PROCESS AND APPARATUS FOR FORMING THE EDGE OF CONTAINERS OF SYNTHETIC THERMOPLASTIC MATERIAL A process and apparatus for forming the edge of containers of synthetic thermoplastic material which are open at the top and terminate in an outer upwardly arched and downwardly extending flange comprises the following stages, which can be repeated cyclicly: feeding from one or more stacks of containers; heating the flanges; removal of at least the top container on each stack from the remainder; transfer of the top containers; positioning of these within a female mould; forming and final stabilisation of the edges by closing the male and female mould; expulsion of the edged containers from the female mould into a stacking channel; cooling of the female moulds before other containers for edging are placed in them, and in which the first four stages can be separated from the others and continue in operation even when the others are stopped so that containers with a heated flange which is not subjected to edging can be recovered.
Marks & Clerk
O.m.v. Spa
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