Backing run for nozzle paste application
AssigneeWindmoeller & Hoelscher KG
InventorsRuediger Duwendag, Marco Daher, Thomas Knoke, Andreas Lamkemeyer
Life of this patent
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Abstract
The invention describes a bottomer for the production of sacks, preferably cross-bottom valve sacks (18), which bottomer comprises at least one glue unit (1) that applies glue to the components (2) of the sacks. The glue unit (1) comprises a nozzle bar (4), which (4) comprises at least one nozzle for extruding glue onto the sack components (2). It should be emphasized that a counter support (5) is provided, which positions the sack components (2) with a force against the nozzle bar (4).
Claims21
Bottomer for the production of sacks,
- preferably cross-bottom valve sacks (18),
- which bottomer comprises at least one glue unit (1) that applies glue to the components (2) of the sacks,
- the glue unit (1) comprising a nozzle bar (4), which (4) comprises at least one nozzle for extruding glue onto the sack components (2),
- which bottomer is characterized by
- a counter support (5), which positions the sack components (2) with a force against the nozzle bar (4).
Bottomer according to the preceding claim characterized in that the counter support (5) comprises flexible and/or springy materials.
Bottomer according to the preceding claim characterized in
- that the active surface (6) is segmented.
Bottomer according to the preceding claim characterized in
- that the active surface (6) comprises segments (11), which have a width (B) and a length (L) in the plane of the active surface (6), which width and length are at least in an aspect ratio of 1:4.
Bottomer according to the preceding claim characterized in
- that the belts (14) are made of any of the following materials:
- a flexible plastic, preferably an elastomer
- wires, preferably of metal such as guitar strings
- polymer fibers
Bottomer according to the preceding claim characterized in
- that the belts (14) of the active surface (6) are oriented in the same direction as that of the relative movement between the nozzle bar (4) and the sack components (2).
Bottomer according to the preceding claim characterized in
- that the belts (14) of the active surface (6) are movable in the same direction, in which the relative movement between the sack components (2) and the nozzle bar (4) is oriented.
Bottomer according to the preceding claim characterized in
- that the active surface (6) is movable and the doctor-blade device (8, 9) is stationary.
Bottomer according to the preceding claim characterized in
- that device components (15, 16), which guide the belts (14) or to which the belts (14) are attached, are pivoted.
Bottomer according to the preceding claim characterized in
- that a holding force can be applied with the aid of the holding means (21) to holding surfaces of the sack components (2) that are at a distance from each other in the direction (x) extending transversely to the relative movement (z) between the sack components (2) and the nozzle bar (4).
Bottomer according to the preceding claim
- characterized in that the distance between the holding surfaces (6) is adjustable.
Glue unit (1) for applying glue to flat objects-preferably sack components (2)—which glue unit comprises a nozzle bar (4), which comprises at least one nozzle for extruding glue onto the sack components (2), which glue unit is
- characterized by
- a counter support (5), which (5) positions the sack components (2) with a force against the nozzle bar (4).
Method for the production of sacks,
- preferably cross-bottom valve sacks (18),
- in which method glue is applied to the components (2) of the sacks,
- and the sacks are guided past a nozzle bar (4) for the glue application,
- which nozzle bar (4) comprises at least one nozzle used for extruding glue onto the sack components and for transferring glue onto the sack components (2),
- which method is characterized in
- that the sack components (2) are positioned by means of a counter support (5) with a force against the nozzle bar (4).
Dependencies are inferred from the claim text.