Device for inserting aperture in part-region of film wrapping of goods stack arranged on pallet, where film wrapping is configured as film hood drawn over goods stack or as film sleeve surrounding goods stack at least in part

A device for forming an aperture (11) into a part-region of a film wrapping of a goods stack (1) arranged on a pallet, where the film wrapping comprises a film hood (2) drawn over the goods stack (1) and a bottom film sheet arranged underneath the goods stack (1) or a film sleeve surrounding the goods stack (1) at least in part and the bottom film sheet arranged underneath the goods stack (1), the film wrapping is welded with the bottom film sheet situated underneath the goods stack (1), forming a weld seam horizontally encircling the goods stack (1), the device comprising:

• a piercing element (7) with a piercing region (10), the piercing element (7) comprising a first part-region (15) and a second part-region (16);
• and
• an actuation arm (9) to which the piercing element (7) is attached rotatably about a rotation axis (8);
• wherein the first part-region (15) is mounted rotatably on the actuation arm (9) and the second part-region (16) comprising the piercing region (10), the second part-region (16) is pivotably connected to the first part-region (15) by a spring joint, wherein the second part-region is pivotable from an original position against a restoring force of the spring joint;
• wherein the aperture (11) is formed in one of the weld seam, a region of the bottom film sheet surrounding the goods stack (1), a collar shrinkage (4) defined by the film wrapping and encircling the goods stack (1) horizontally, and a collar stretch defined by the film wrapping and encircling the goods stack (1) horizontally;
• and
• wherein in the original position, the second part-region (16) is in alignment with the first part-region.

A device for forming an aperture (11) into a part-region of a film wrapping of a goods stack (1) arranged on a pallet, where the film wrapping comprises a film hood (2) drawn over the goods stack (1) and a bottom film sheet arranged underneath the goods stack (1) or a film sleeve surrounding the goods stack (1) at least in part and the bottom film sheet arranged underneath the goods stack (1), the film wrapping is welded with the bottom film sheet situated underneath the goods stack (1), forming a weld seam horizontally encircling the goods stack (1), the device comprising:

• a piercing element (7) with a piercing region (10), the piercing element (7) comprising a first part-region (15) and a second part-region (16);
• and
• an actuation arm (9) to which the piercing element (7) is attached rotatably about a rotation axis (8);
• wherein the first part-region (15) is mounted rotatably on the actuation arm (9) and the second part-region (16) comprising the piercing region (10), the second part-region (16) is pivotably connected to the first part-region (15) by a spring joint, wherein the second part-region is pivotable from an original position against a restoring force of the spring joint;
• wherein the aperture (11) is formed in one of the weld seam, a region of the bottom film sheet surrounding the goods stack (1), a collar shrinkage (4) defined by the film wrapping and encircling the goods stack (1) horizontally, and a collar stretch defined by the film wrapping and encircling the goods stack (1) horizontally;
• and
• wherein the actuation arm is positioned adjacent to the rotation axis (8) about which the piercing element (7) is mounted rotatably, and wherein at least one cutting blade (24) extending parallel to the rotation axis (8) and oriented orthogonally to the actuation arm is arranged in such a way at the actuation arm (9) that the at least one cutting blade (24) is arranged after piercing on a side facing downward of the actuation arm (9).

A system comprising a film wrapping and a goods stack (1) arranged on a pallet with the film wrapping, where the film wrapping comprises a film hood (2) drawn over the goods stack (1) and a bottom film sheet arranged underneath the goods stack (1) or a film sleeve surrounding the goods stack (1) at least in part and the bottom film sheet arranged underneath the goods stack (1),

• a) where the film wrapping is welded with bottom film sheet situated underneath the goods stack (1), forming a weld seam encircling the goods stack (1) horizontally, an aperture (11) is formed in the weld seam or in a region of the bottom film sheet surrounding the goods stack, or
• b) where the film wrapping comprises a collar shrinkage (4) encircling the goods stack (1) horizontally, and the aperture (11) is formed in the collar shrinkage (4) or
• c) where the film wrapping comprises a collar stretch encircling the goods stack (1) horizontally, and the aperture (11) is formed in the collar stretch, and
• a device which comprises a piercing element (7) with a piercing region (10) and at least one actuation arm (9) to which the piercing element (7) is attached rotatably about a rotation axis (8), wherein the aperture (11) is formed in one of the weld seam, the region of the bottom film sheet surrounding the goods stack (1), the collar shrinkage (4), and the collar stretch,
• wherein the piercing element comprises a first part-region and a second part-region;
• wherein the first part-region is mounted rotatably on the at least one actuation arm and the second part-region comprises the piercing region, the second part-region is pivotably connected to the first part-region by a spring joint;
• wherein the piercing element is configured to be inserted between the goods stack and the film wrapping such that the first part-region is oriented along a vertical plane and the second part-region is configured to pivot about the spring joint from an original position in the vertical plane against a restoring force of the spring joint into an orientation assuming a contour of the film wrapping pulled away from the goods stack and form the aperture.