초록 ▼

The invention relates to a method of wrapping various products in packaging obtained from a strip. In the method, the strip is longitudinally folded along its center so as to form two longitudinal portions which are longitudinally coupled. The portions are then joined along transverse junction lines

The invention relates to a method of wrapping various products in packaging obtained from a strip. In the method, the strip is longitudinally folded along its center so as to form two longitudinal portions which are longitudinally coupled. The portions are then joined along transverse junction lines which define compartments having upwardly open mouths for inserting material. The compartments are then separated at the transverse junction lines, thus obtaining a set of independent bags which remain joined together at lateral areas near the mouth. The resulting bags are suspended from a conveyor travelling along a closed path in a loop. According to the invention, the path travelled by the bags is inside the path of the conveyor so that opposite corners of the bag mouths are brought together and consequently loosen the borders bounding the mouth so that metering means can be inserted along a circular portion of the path of the conveyor so that a preset amount of material can be discharged into the bags. After the metering means has been removed, the bags are closed and separated from one another. The invention also relates to a device for working the aforementioned method, and the resulting packaging.

대표청구항 ▼

A method of wrapping various products in packaging made of sheet material, comprising the steps of feeding a strip of packaging lying in a vertical plane, the strip comprising two adjacent longitudinal portions, connected along a bottom edge and along equidistant transverse lines defining a set of c

A method of wrapping various products in packaging made of sheet material, comprising the steps of feeding a strip of packaging lying in a vertical plane, the strip comprising two adjacent longitudinal portions, connected along a bottom edge and along equidistant transverse lines defining a set of contiguous compartments having a mouth along the top longitudinal edge, forming at least one eyelet along each transverse junction line at a preset distance near the edge of the mouth, arranging a conveyor to move along a closed path in a loop comprising an arc of a circle, providing said conveyor with suspension means engaging said eyelets so that the compartments travel along a path inside the path of the conveyor at least along said arc to cause adjacent suspension means to move together and the mouths of the compartments along said arc to widen, inserting batches of products through said widened mouths into the compartments along said arc by metering means disposed concentrically along said arc, and finally closing the compartments.