| 摘要 |
Apparatus for packing loose, compressible material, such as leaf tobacco, in rectangular containers. The invention is an improvement in apparatus of the type comprising a press with a vertically reciprocatory plunger, means for supporting the rectangular container below the press plunger, and an upright charger which surrounds the path of the press plunger and through which the plunger moves, the charger being movable upwardly and downwardly independently of the press plunger. The invention provides a sleeve mounted on the lower end of the charger and depending therefrom, the sleeve being inserted into the rectangular container as the charger descends, and being extracted from the container by upward movement of the charger, as the press plunger remains in lowered position to keep the compressed material within the containers. The construction of the sleeve is such that it is initially tapered, assuring ease of entry through the open top of the container, without danger of damaging the container. As the compressible material is packed into the sleeve, after the sleeve has been inserted in the container, the sleeve expands to a rectangular form of uniform transverse cross section. The construction of the sleeve, and its relation to the charger and the container, are such as to provide an improved action in minimizing and resisting the forces exerted by compression of the material within the container.
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