| 摘要 |
<p>1,205,488. Filling containers. A.T.A.D. APPROVISIONNEMENT-TRANSPORT AERIEN-DISTRIBUTION. 22 April, 1968 [24 April, 1967], No. 18941/68. Heading B8T. In a machine for filling a product, e.g. edible cream, under sterile conditions into valved containers R, a rotary drum 1 rotatably mounted on a stationary shaft 2 between two fixed distributer plates 3 and 4 is provided with external conduits 6 at the end of which are devices 7 for supporting and filling the containers. Radial ducts 8 in the drum communicate with the conduits 6 and also communicate in turn with ports (11, 12, 14, 15, 16), (10, 13), Figs. 3 and 4 (not shown), for successive operation of various stages in the filling cycle. On rotation of the drum 1 and supporting discs 28 and 29 by a motor 30, and the introduction of the container R to device 7, port (10) in plate 4 first communicates with duct 9 and the container is evacuated by means of a vacuum pump 18. On further rotation, duct 9 communicates with port (11) in plate 3, through which an asepticizer is introduced from a metering pump 20, and then with port (12) introducing sterilized air. The sterilized product, e.g. edible cream, is introduced from a metering device 22 through port (14) at the next stage, followed by a propelling gas through port (15). After removal of the filled container, sterilized air is introduced through port (16) to remove final traces of products. Each filling device 7 has a socket (23), Fig. 5 (not shown), for receiving the valve of an inverted container which is held in place by a cap carried by the disc 28 and movable downwards both to open the container valve and also depress a piston (24) to open a conduit 6. An alternative embodiment, Figs. 6-9 (not shown), has separate conduits (6a, 6b) connected to a drum (1a) conduit (6a) communicating with ports in plate (4a) only and conduit (6b) communicating with ports in plate (3a) only. Thus, materials in the process can be kept separate by introducing some in turn to the container via conduit (6a) and others via conduit (6b). The operation is similar to the previous embodiment, except that a rotatable lever-operated valve (37) is provided in the supporting head (7a) for selecting input from either conduit (6a) or (66). A lever (40) rotated by a cam controls this selection and a hollow needle (41) penetrates into the container. A drain pipe (44), occluded while the container is in position for filling, is provided in the cavity at the top of the head for evacuating waste material after removal of the container. Apart from the selection of different conduits for different materials, the operation is identical to the first embodiment.</p> |
