Process and apparatus for the automatic depositing and pressing of continuous tows
AssigneeHoechst Aktiengesellschaft
InventorSiegfried Rewitzer
Life of this patent
Estimating the term…
Abstract
The invention relates to processes and devices for automatically depositing and pressing continuous tows in containers moved to and fro on a traversing device, wherein the start of the tow is transferred via a chute to a catch box on the container and is retained there, the container is weighed during each traversing movement because of the extension of a weighing platform and, when the nominal weight is reached, the fed tow is held and severed in a cutting and fixing device, the tow ends obtained are fixed and marked, and the tow end belonging to the deposited material and the start of the tow are introduced into the full container from the catch box.
Claims7
In a process for depositing and pressing continuous tows in which a continuous tow is deposited in zigzag layers into an open-ended container through a pivotable chute, moving a container transversely to the chute by means of a traversing device, and exposing the deposited tow to the effect of respective press rams at each end point of the traversing movement, the improvement comprising the steps of introducing an empty container onto the traversing device, transferring the starting end of a continuous tow to a catch box positioned adjacent the open-ended empty container, weighing the container and its contents during each traversing movement thereof, stopping the further deposition of the continuous tow into the container when a predetermined tow weight is reached, severing the tow and fixing the tow ends thus formed by the sever to prevent them from unraveling, depositing the starting end of the continuous tow from the catch box into the open-ended container after the severing and fixing steps, and removing the open-ended container and its tow contents from the traversing device.
In a tow-depositing device for depositing and pressing tows into open-ended portable containers comprising a traversing device for moving a transportable container back and forth between two end positions, two press rams located above the transportable container at the end positions of its traverse movement constructed and arranged to compress the tow material deposited in the container, a pivotable chute located between the press rams for feeding a continuous tow into the container, and means for loading empty containers onto the traversing device and filled containers away from the traversing device, the improvement according to which the tow-depositing device includes a weighing platform with weighing means thereon located within the traversing device constructed and arranged to follow the movement of the traversing device and also to raise independently of the traversing device whereupon the container is lifted and weighed by the weighing means, a holding frame movable within the traversing device for releasably securing packaging material within the container, a catch box movably mounted on the holding frame constructed and arranged to catch and hold the starting end of a continuous tow and to deposit such end into the container upon completion of tow deposition into the container, a tow-cutting and fixing device connected to cut the tow upon completion of tow deposition into the container and to fix the thus formed severed tow ends whereby individual filament ends of the tow are prevented from unraveling.
Dependencies are inferred from the claim text.