Device for separating packages for flowable media

A device for mechanical separation of work pieces which comprise hollow plastic packages joined together in pairs at one end thereof to define a zone of separation, said device comprising:

• feeder means for feeding work pieces along a path of travel, said feeder means including conveyor means with guiderails for guiding said work pieces and drivers for moving said work pieces along said path of travel, wherein the conveyor means includes at least one conveyor belt and separating cutter means disposed along said conveyor belt along said path of travel, said separating cutter means including a first linear cutter having a pair of cutters arranged on opposite sides with respect to a first plane of symmetry, which is longitudinal in relation to said path of travel, said cutters each having at least one straight cutting blade disposed for location in a cutting plane, said cutting plane being perpendicular to the first plane of symmetry, said straight cutting blades being disposed at a first angle relative to the first plane of symmetry, wherein said straight cutting blades have a predetermined length and converge in the direction of the path of travel;
• said device further including a round cutter arranged along the path of travel following said first linear cutter, said round cutter having a pair of rotatable circular cutters arranged symmetrically on opposite sides with respect to said first plane of symmetry;
• wherein a second linear cutter is disposed along the path of travel upstream relative to the first linear cutter such that work pieces engage said second linear cutter prior to engaging said first linear cutter, said second linear cutter including a pair of cutting blades disposed on opposite sides of the first plane of symmetry at a second angle relative to the plane of symmetry, such that said second angle is smaller than said first angle.

A device for mechanical separation of work pieces which comprise hollow plastic packages joined together in pairs at one end thereof to define a zone of separation, said device comprising:

• feeder means for feeding work pieces along a path of travel, said feeder means including conveyor means with guiderails and drivers, wherein the conveyor means includes at least one conveyor belt and separating cutters disposed along said conveyor belt along said path of travel, said separating cutters including a first linear cutter having a pair of cutters arranged on opposite sides with respect to a first plane of symmetry, which is longitudinal in relation to said path of travel, said cutters each having at least one straight cutting blade disposed for location in a cutting plane, said cutting plane being perpendicular to the first plane of symmetry, said straight cutting blades being disposed at an angle relative to the first plane of symmetry, wherein said straight cutting blades converge along the path of travel;
• said device further including a round cutter arranged along the path of travel downstream from said first linear cutter, said round cutter having a pair of rotatable circular cutters arranged symmetrically on opposite sides with respect to said first plane of symmetry, and including a first cutter guide disposed on one side of the path of travel and a second cutter guide disposed on the other side of the path of travel, wherein each of said first and second cutter guides comprises a first part and a second part, said second part adapted to be placed on top of said first part to form one of said first and second cutter guides, and wherein each of said first and second cutter guides partially covers one of the pair of said circular cutters, wherein each of said first and second cutter guides has one side facing said first plane of symmetry and another side facing away from said first plane of symmetry, wherein said circular cutters are fully covered on said side of said cutter guide facing away from the first plane of symmetry and wherein said circular cutters are exposed on the side of each of said first and second cutter guides facing said plane of symmetry.

A device for mechanical separation of work pieces which comprise hollow plastic packages joined together in pairs at one end thereof to define a zone of separation, said device comprising:

• feeder means for feeding work pieces along a path of travel, said feeder means including conveyor means with guiderails and drivers, wherein the conveyor means includes at least one conveyor belt and separating cutters disposed along said conveyor belt along said path of travel, said separating cutters including a first linear cutter having a pair of cutters arranged on opposite sides with respect to a first plane of symmetry, which is longitudinal in relation to said path of travel, said cutters each having at least one straight cutting blade disposed for location in a cutting plane, said cutting plane being perpendicular to the first plane of symmetry, said straight cutting blades being disposed at an angle relative to the first plane of symmetry, wherein said straight cutting blades converge in the direction of the path of travel;
• said device further including a round cutter arranged along the path of travel downstream from said first linear cutter, said round cutter having a pair of rotatable circular cutters arranged symmetrically on opposite sides with respect to said first plane of symmetry, wherein said circular cutters are rotatably mounted for engagement with work pieces, said circular cutters having thin blades with a blade thickness of approximately 0.5 to 2 mm, and wherein the diameter of each circular cutter is approximately 1/2 to 5/6 the length of said straight blades of said first linear cutter.