Abstract:
A punching tool comprising a punch (42) and a die (46), in particular for manufacturing a creasing plate (24), the die having a straight recess (50) for accommodating material deformed by the punch (42), characterized in that the die (46) has an outer contour which extends, adjacent the open end of the recess (50), at an angle of less than 90° with respect to the longitudinal direction of the recess (50).
Abstract:
Un procédé de réalisation d'un outil de gaufrage femelle (6) destiné au gaufrage d'un élément plat (60), comprend les étapes consistant à: - fournir un outil de gaufrage femelle (6) revêtu d'une couche extérieure (44) réalisée dans un matériau présentant des propriétés de type mémoire de forme et dont la face extérieure est dépourvue de creux, - fournir un outil de gaufrage mâle (5, 5') dont la face extérieure est pourvue d'au moins une protubérance correspondant à au moins un relief d'embossage souhaité sur l'élément plat (60) après gaufrage, et - faire coopérer l'outil de gaufrage mâle (5, 5') avec l'outil de gaufrage femelle (6), de sorte que la couche extérieure (44) de l'outil de gaufrage femelle (6) subit une déformation plastique qui créé au moins un creux (42, 42') de forme complémentaire à la ou aux protubérances (41, 41 ') de l'outil de gaufrage mâle (5, 5').
Abstract:
A creasing plate (24) for creasing a sheet (12) from paper, cardboard, carton, foil or a similar material, the creasing plate (24) consisting of plastically deformable material and comprising at least one creasing projection (26) formed from a plurality of small, plastically deformed areas which merge into each other so as to form the creasing projection (26).
Abstract:
A method for processing a cardboard (12) with a laser beam (14) is provided, wherein the laser beam (14) is moved over the cardboard (12) along a desired folding line (24) such that an upper layer of the cardboard (12) is ablated without cutting through the cardboard (12), wherein the laser beam (14) is adjusted such that the laser beam (14) is focused below the cardboard (12).
Abstract:
Un procédé permet de régler un intervalle radial entre deux outils cylindriques rotatifs de gaufrage (16, 17), dans un dispositif de gaufrage (14) comprenant une armature (19, 21), une première structure (16, 24, 26, 27, 29), montée mobile en translation par rapport à l'armature (19, 21), et équipée avec un premier outil cylindrique rotatif (16), et une deuxième structure (17, 22, 28, 31), montée fixe sur l'armature (19, 21), et équipée avec un deuxième outil cylindrique rotatif (17). Le procédé comprend les étapes consistant: - à pousser (T) sur la première structure (16, 24, 26, 27, 29) pour la rapprocher de la deuxième structure (17, 22, 28, 31), en s'appuyant sur l'armature (19, 21), de façon à ajuster un intervalle radial entre le premier et le deuxième outil (16, 17), et - à tirer (P) sur la première structure (16, 24, 26, 27, 29) pour l'écarter de la deuxième structure (17, 22, 28, 31), en s'appuyant sur l'armature (19, 21), de façon à régler finement l'intervalle radial entre le premier et le deuxième outil (16, 17).
Abstract:
The invention relates to a method of creasing sheets (12) by using a creasing tool (14, 20, 21) cooperating with a counter element (22, 23), comprising the following steps: - a creasing plate blank (24') is provided with at least one creasing projection (26) by plastically deforming the material of the blank (24') so as to form a creasing plate (24), - the creasing plate (24) is mounted to a creasing tool (14, 20, 21), - sheets (12) to be provided with at least one crease are advanced through a gap between the creasing tool (14, 20, 21) and the counter element (22, 23).
Abstract:
The invention relates to a creasing machine having a creasing tool (14, 20, 21), a counter element (22, 23) cooperating with the creasing tool, and a transportation system (10) for advancing sheets (12) through a creasing area between the creasing tool (14, 20, 21) and the counter element (22, 23), the creasing tool having a creasing plate (24) provided with at least one creasing projection (26), characterized in that the creasing projection (26) on the creasing plate is constituted by a plurality of small, plastically deformed areas which merge into each other so as to form the creasing projection (26). The invention also relates to a creasing plate (24) adapted for being used in a creasing machine according to any of the preceding claims, the creasing plate (24) being made from sheet metal and comprising at least one creasing projection (26) formed from a plurality of small, plastically deformed areas which merge into each other so as to form the creasing projection. Further, the invention relates to a method for creasing sheets (12), in particular made from paper, cardboard or foil, comprising the following steps: data regarding folding creases (30) to be applied to the sheet (12) is provided. A control (60) determines if a suitable creasing plate (24) is available in an inventory or if a new creasing plate (24) is to be manufactured. Based on the determination of the control (60), either an existing creasing plate (24) is retrieved from the inventory (62) or a new creasing plate (24) is manufactured by using a punching module (40) for applying a plurality of small deformations to a creasing plate blank (24'), the deformations constituting at least one creasing projection (26). The creasing plate (24) is mounted on a creasing tool (20, 21), and the creasing tool (20, 21) cooperates with a counter element (22, 23) for applying folding creases (30) to sheets (12) advanced through a creasing area between the creasing tool (20, 21) and the counter element (22, 23).
Abstract:
A gripper assembly for recovering a layout (22) from a sheet material (12) is presented. It comprises a vacuum gripper (26) with a gripper body (32) on which an array of air flow openings (34a, 34b) is arranged. Air flow openings (34a) associated with one or more blanks (20) of the layout (22) are selectively open and air flow openings (34b) associated to waste (28) of the sheet material (12) are selectively closed. Additionally, an apparatus for recovering a layout (22) from a sheet material (12) comprising such a gripper assembly is described. Furthermore, a method for separating a layout (22) from waste (28) of a sheet material (12) is explained.
Abstract:
Un module pour plieuse-colleuse (1) comprend un bâti (13) possédant deux parois sensiblement verticales avant et arrière (14, 16) et au moins un agencement fonctionnel (28, 33) maintenu par le bâti (13). Le bâti (13) comprend en outre au moins un élément transversal (17, 18), connectant mécaniquement et maintenant un parallélisme entre les deux parois (14, 16), et conformé avec au moins une portion sensiblement horizontale formant un tablier (19), de façon à permettre à un opérateur (30) de monter sur le bâti et d'accéder à l'agencement fonctionnel (28, 33).