| 摘要 |
A device for the moulding of thermoplastic containers by blowing comprises a mould ( 1 ) with two half-moulds ( 2, 3 ), each having a support ( 5, 6 ) and a mould block ( 7, 8 ) between which, in one half-mould, a compensating chamber ( 20 ) is defined, with elastic return means ( 26 ) and abutment means ( 27 ) being interposed, which are combined in unitary assemblies ( 35 ) each comprising: a bore ( 36 ) passing through the support and receiving a pin ( 38 ) having one end ( 39 ) fastened to the mould block and a first radial shoulder ( 40 ) against which bears the end (E) of a sleeve ( 46 ) screwed in the bore and having an outer head ( 47 ) capped by an axially displacaeable housing ( 49 ), with the elastic return means being interposed, which are preloaded by a nut ( 53 ) screwed on the free end of the pin against a second radial shoulder ( 54 ) of the pin, at the same time pushing the housing.
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