Plastic article or earthenware shaping or treating: apparatus – Mold opening and closing means and segmented female mold
Patent
1985-07-17
1987-02-24
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Mold opening and closing means and segmented female mold
264531, 264534, 249161, B29C 4718
Patent
active
046454470
ABSTRACT:
A split mold device having a crooked cavity therein when closed for blow-molding therein a synthetic resin into a crooked article having such an irregular shape, comprising a pair of plates capable of relative movement in the horizontal direction for opening and closing a pair of split molds mounted on the confronting surfaces of said pair of the plates, each of said pair of split molds consisting of an upper part forming an upper portion of the crooked cavity, a lower part forming a lower portion of the crooked cavity and a main part forming a main portion of the crooked cavity, each of said upper parts of the pair of the split molds being mounted on a respective upper portion of the confronting surface of the pair of plates, each of said lower parts of the pair of the split molds being mounted on a respective lower part of the confronting surfaces of the pair of plates, each of said main parts of the pair of the split molds being slidably, in the split mold-opening and-closing direction, supported between the upper parts of the split molds and a respective lower part of the split molds on said pair of the plates; springs for elastically urging said main parts of the split molds at all times in the split mold-closing direction beyond said upper and lower parts of the split molds; and the means for generating an air current within the main crooked cavity formed when said pair of the main parts of the split molds are closed from the upper end opening to the lower end opening, thereof.
REFERENCES:
patent: 3048891 (1962-08-01), Maass
patent: 3311684 (1967-03-01), Heider
patent: 3345686 (1967-10-01), Settembrini
patent: 3672799 (1972-06-01), Liebertz et al.
Heitbrink Timothy W.
Woo Jay H.
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