SE319119B - - Google Patents

Abstract

Abstract 1,090,695. Packaging. G. HANSEN. Feb. 2, 1966 [Feb. 6, 1965], No. 4580/66. Heading B8C. A device for filling with liquid, &c. material a flexible container, e.g. of thermoplastic in a plastic condition, comprises telescoped air feed, material feed and venting tubes which are relatively movable axially with respect to each other to control a material feed valve and a vent valve. A pneumatic, &c. servo 59, Fig. 1, is energized to push downwards on slide rails 42. &c. a connecting rod 58 and a servo cylinder 28<SP>1</SP>, &c., so that a feed tube 1<SP>1</SP> closed by a valve is introduced into the neck of the container. When the feed tube 1<SP>1</SP> is within the container, compressed air is passed down a bore 18<SP>1</SP>, Fig. 4, in an inner rod 27<SP>1</SP> and through a check valve 66, Fig. 5, in the feed head. The container, which is made of thermoplastic, is still in its mould and in a plastic state, and is accordingly inflated. The servo 28<SP>1</SP>, which may also be pneumatic, is then energized, to slide the inner rod 27<SP>1</SP> downwards within the feed head. First a valve head 26<SP>1</SP>, Fig. 5, on the inner rod 27<SP>1</SP>, is moved away from an intermediate tube 2<SP>1</SP>, to its open position. The liquid, &c. material is admitted through a pipe 49, Fig. 1, and the ring-shaped space between the intermediate tube 21 and the inner rod 27<SP>1</SP> to the container. Continued movement of the servo acts through a spring coupling (52), Fig. 3 (not shown), to open a valve 5<SP>1</SP>, 6<SP>1</SP>, Fig. 5, by sliding the intermediate tube 2<SP>1</SP> downwards relatively to the outer tube of the feed head 1<SP>1</SP>. Air is then vented through the ring-shaped space between the intermediate tube 2<SP>1</SP> and the outer tube of the feed head 1<SP>1</SP> to a coupling 9, a pipe 11, a throttling device 12 and a container 13, which latter collects any surplus material carried by the air stream. When the plastic container is full, the head 1<SP>1</SP> is withdrawn, closing the various valves, and the container is closed.

Inventors

• 👤 G Hansen

Bibliographic Details