Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1983-01-12
1985-03-12
Silbaugh, Jan
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
425185, 425186, 425233, 425532, 425335, 425336, 425363, 425369, B29D 2303, B29D 2304
Patent
active
045042063
ABSTRACT:
A vertical format corrugator or the like tube producing apparatus has two sets of independent mold sections that circulate on respective paths. The mold sections co-operate to define a travelling mold cavity into which a thermoplastic tube may be extruded to be molded. Fixed tracks extend along the forward and return runs of the mold section paths and are engaged by track followers on the mold sections. The track followers support and guide the mold section, thus enabling the elimination of chains linking the mold sections. In preferred embodiments, transfer mechanisms are provided at the ends of the runs to transfer the mold sections individually from one run to the next. The mold sections may include removable mold blocks, means for automatically changing the configuration of the mold cavity and a system for internal cooling of the mold sections.
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Lupke Gerd P. H.
Lupke Manfred A. A.
Lorin Hubert C.
Silbaugh Jan
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