B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 43/30 (2006.01) B65B 3/28 (2006.01) B65B 43/46 (2006.01) B65B 43/54 (2006.01)
Patent
CA 2091471
1090-30 APPARATUS FOR FILLING SACKS HAVING ONE OPEN SIDE ABSTRACT Sacks which are open on one side and are preferably provided with side folds are gripped at their side sections in the area of their open edges by pairs of grippers, which can be displaced towards and away from each other. The lateral walls of the sacks are pulled apart adjacent the open edges between the grippers by suction elements arranged in a rack of the apparatus. In the rack there are arranged filling necks which can be lowered and raised into and out of the open sacks. A sealing device closes the open edges of the sacks which are closed by moving apart the grippers thus pulling the edges tightly against each other. In order to be able to detect the desired net weight of the filling quantity with a high accuracy, the pair of grippers and the drive means for the opening and closing movements, and for the displacement of the grippers towards and away from each other, are arranged on carrying means which are connected with the rack by means of weighing devices. This separate carrying means minimizes the amount of the apparatus which must be included in the gross weighing thereby minimizing the relative error.
Shapiro Cohen
Windmoller & Holscher
LandOfFree
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