Package making – With means responsive to a sensed condition – Of individual contents or group feed or delivery
Patent
1986-03-04
1987-08-25
Culver, Horace M.
Package making
With means responsive to a sensed condition
Of individual contents or group feed or delivery
53570, 141 83, 141285, B65B 132, B65B 128
Patent
active
046883711
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an apparatus for filling flexible bulk material containers.
In the case of conventional apparatuses for filling sacks, bags and the like involving the weighing of the introduced bulk material quantity, the scales or balance is either set up on the ground or is embedded in the latter. In the first case, as a result of the overall height of the balance, it is generally necessary to use an expensive forklift for removing the heavy, filled bulk material container standing thereon. In the second case, as a result of the gaps caused by the balance embedded in the floor or ground, it is difficult to clean the filling apparatus and the surrounding floor area, this being particularly disadvantageous when it is necessary to operate under hygienically completely satisfactory conditions.
The problem of the invention is to obviate this shortcoming and provide a filling apparatus for flexible bulk material containers enabling the container to be removed after filling by simple means, e.g. a hand truck, without there being any need for a balance sunk into the ground.
The present invention therefore proposes an apparatus for filling flexible bulk material containers, having a balance mounted in the upper area of a standing frame or on a hanging frame, upper carrying means suspended on the load receiving member of the balance for hanging a flexible bulk material container in an upper area thereof, lower carrying means for supporting the flexible bulk material container from below suspended on the load receiving member of the balance, a hoisting mechanism fitted to the load receiving member of the balance for the upper and lower carrying means for moving same between a position in which the lower carrying means is in contact with the ground and a position in which the lower carrying means is raised from the ground, and filling tube fitted to the load receiving member of the balance for filling the flexible bulk material container from above.
For filling purposes, by means of the hoisting mechanism the upper and lower carrying means with the bulk material container hanging or supported thereon are raised to such an extent that the lower carrying means no longer stand on the ground. In this suspended state, the bulk material container is filled through the filling tube, to which the container is fixed by its filling opening or connection and the filled quantity is measured by means of the balance.
After filling, the upper and lower carrying means are lowered against by means of the hoisting mechanism until the lower carrying means rest on the ground, after which the filled bulk material container can be removed from the filling apparatus by means of a simple hand truck due to the possible low overall height of the lower carrying means. Since, during filling, the bulk material container was supported from below by the lower carrying means, an outward bulging of the container in the downwards direction during filling is avoided, so that after removal from the filling apparatus, the bulk material container can stand in unsupported manner.
According to a preferred development of the invention, the filling apparatus also has a length-variable tubular element traversed by the filling tube and which is fixed to the latter in the vicinity of its balance-side end and is fixed to the upper carrying means and can be connected the bulk material container to be filled in the vicinity of its bulk material container-side end.
As a result, the connection of the filling opening or connection of the bulk material container to the filling apparatus always takes place at a normal grasping or gripping height and the detachment thereof after filling often takes place at said height, without it being necessary to provide a special platform; this being made possible by an adequate lowering of the upper carrying means using the hoisting mechanism. With regards to detachment, this even applies in the case of flexible bulk material containers which are higher than a man, because in the case of an adequate lowering of the upper
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patent: 4407108 (1983-10-01), Craig
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