Process and apparatus for the packaging of fibrous material in bales
AssigneeHoechst Aktiengesellschaft
InventorSiegfried Rewitzer
Life of this patent
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Abstract
The invention relates to a process for the packaging of fibrous material, such as staple fibers or tow ribbons, in bales of high density by multi-stage compression and wrapping with two-dimensional packaging material and reinforcing bands. It further relates to equipment suitable for this process. The material to be packaged is first placed in transportable press containers and pressed, transported in these containers to a central press, and then subjected to a main pressing step. The packaging and reinforcing of the bales produced are carried out in the central press which can be performed automatically if desired. By this invention it is possible to combine three or more laying-down and first-stage press devices, which may be supplied from different fiber lines, with a main press.
Claims12
In a process for the preparation of a bale of compressed fibrous material encased in a flexible packaging material by compressing said fibrous material in multiple stages and reinforcing said compressed bale of fibrous material with bands or other suitable reinforcing means, the improvement which comprises partially compressing fibrous material in a plurality of first-stage presses by charging the fibrous material to a transportable press container said press container having a releasable bottom plate and partially compressing said charged fibrous material therein, controllably transporting said charged press container along a pre-selected path to align with a central press unit having a reciprocating ram, encasing the open end faces of the partially compressed fibrous material with blanks of packaging material and then advancing said ram to compress the encased fibrous material into a bale of fibrous material, removing the press container from the bale of fibrous material while maintaining said ram in compressing position and encasing the open side faces of said bale with a web of packaging material, controllably folding and fastening any projecting surfaces of said blank or web of packaging material to said bale, reinforcing said bale with bands or other suitable reinforcing means, retracting said ram and then removing bale from said central press unit and transporting the empty transportable press container back to one of said first-stage presses.
A baling press system for multi-stage compression of fibrous material into bales and packaging said bales with two-dimensional flexible packaging material and reinforcing bands which comprises
- (a) a plurality of first-stage presses with transportable press containers having a releasable bottom plate and a box-shaped cross section said press containers adapted to receive a charge of fibrous material which can then be partially compressed therein,
- (b) transport means for controllably transporting said press containers along a pre-selected path from said first-stage presses to a central press unit and back to said first-stage presses,
- (c) a central press unit having a reciprocating ram for compressing the partially compressed fibrous material encased on the open end faces thereof by blanks of packaging material, further containing,
- means for aligning each press container with said central press unit without any change in position of said compressed fibrous material and/or packaging material,
- means for removing said press container from said fibrous material, and
- a multiplicity of rod-shaped or two-dimensional mechanical means for folding and fastening said packaging material to said bale.
Dependencies are inferred from the claim text.