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Abstract

Transportation apparatus for machines for filling bags (1) with bulk material (2), comprising at least one station (F) for forming the bag (1), at least one station (R) for filling the bag with the material (2), provided with fixed bag gripping means (112,112a), at least one station (S) for sealing the mouth (1a) of the bag and at least one apparatus for transporting the bags from one station to the other station (F,R,S) in a feeding direction (X-X), said apparatus comprising two pairs of the arms (510,1510) which are symmetrically arranged with respect to the direction (X-X) of feeding of the bag and each carry respective pairs of means (514) for gripping the sides (1c) of the bag (1), said pairs of arms (510,1510) being formed by levers (511,1511) which are kinematically connected together in a pantograph arrangement, said first pair of levers (511) being able to travel along a curved trajectory (T) from a point (T1) where the gripping means (514) are situated at a maximum relative distance to a point (T2) where the same gripping means (514) are situated at a minimum relative distance, along the outward and return path from one station (F) to the other station (R), said second pair of arms (1550) being able to travel along a curved trajectory (T) from a point (T2) where the grippers (514) are situated at a minimum relative distance to a point (T3) where the same grippers (514) are situated at a maximum relative distance and vice versa along the outward and return path from one station (R) to the other station (S).

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First Claim