B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 53/30 (2006.01) B29C 47/12 (2006.01) B29D 23/00 (2006.01)
Patent
CA 2377652
The present invention relates to an apparatus for the manufacture of corrugated pipes from thermoplastic in which mould segment halves, which complement one another in pairs, are guided together in a circuit along a mould path adjacent to an injection head, are moved apart at the end of the mould path and are returned back to its start separately from one another. The apparatus has a mould path device to move the mould segment halves along the mould path and a return conveyor to return the mould segment halves from the end of the mould path back to its start, with the mould path device comprising a machine table having a lower guide and lower drive means for the mould segment halves and a cover frame secured to the machine table having an upper guide and upper drive means for the mould segment halves. The mould path device and the return conveyor form units separated from one another, with a portal robot fixedly anchored to a base plate being provided as the return conveyor and the mould path unit being a mobile unit travelable on the base plate. The upper drive means at the cover frame have driving pinions which can be driven around a vertical axis and which can engage into racks at the upper side of the mould segment halves such that a vertical offset is possible, for example as a consequence of thermal expansion, between the mould segment halves and the driving pinions. Furthermore, a direct cooling system is provided for the better dissipation of heat from the mould segment halves which circulates coolant through coolant passages in the mould segment halves during the movement of the mould segment halves along the mould path.
Dietrich Karl
Hurler Michael
Drossbach Gmbh & Co. Kg
Shapiro Cohen
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