B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
B28B 21/72 (2006.01) B28B 21/22 (2006.01) B28B 21/26 (2006.01)
Patent
CA 2462655
The invention relates to a device and a method for producing multilayer, in particular two-layer, concrete pipes. For this purpose, the device (1, 1') has a first stand (2) in which a first drivable press head (4) is mounted, a turntable (3) on which several upright mold casings (5, 5a, 5b) can be cyclically swung into a stand (2) and a first charging unit (6, 6a, 6b) for filling a first concrete mixture into one of the mold casings (5a, 5b). According to the invention, a second drivable press head (4'), having an outside diameter that is smaller than that of the first press head (4), and a second charging unit (7, 7a, 7b, 8, 8a, 8b) for filling a second concrete mixture into one of the mold casings (5, 5a, 5b) are provided in the device (1, 2'). Prior to releasing the mold of the concrete pipe from the casing (5a, 5b), the second concrete mixture can be filled into the essentially upright mold casing (5, 5a, 5b) in this way by means of the second charging unit (7, 7a, 7b, 8, 8a, 8b) and spread and compacted with the second press head (4') (Fig. 5).
Schlosser-Pfeiffer Gmbh
Smart & Biggar
LandOfFree
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