Abstract: A device for changing a sheet pile (14) in a sheet feeder (10) for a sheet treating machine comprises a main pile supporting unit (18) with a main pile actuating unit (20) for lifting and lowering the main pile supporting unit (18), wherein the main pile supporting unit (18) comprises a supporting surface (22) adapted to support a pallet (16) carrying a sheet pile (14). The device further comprises a residual pile supporting unit (24) with a residual pile actuating unit (26) for lifting and lowering the residual pile supporting unit (24).

Abstract: A hot foil stamping press (10) comprises a platen press (16), with a supporting plate (22) comprising a base plate (26) and a compensating plate (28) being rotatably attached to the base plate (26) for switching between an operating position and a makeready position and a hook element (38) comprising a base part and a top part being arranged at an angle relative to the base part. The hook element (38) is rotatably attached to a door (30) of the platen press (16) by a fixation axle for switching between a releasing position and a securing position of the hook element, wherein the top part retains the compensating plate (28) in its makeready position when the hook element (38) is in its securing position.

Abstract: A creasing machine includes a creasing tool, a counter element cooperating with the creasing tool, and a transportation system for advancing sheets through a creasing area between the creasing tool and the counter element, wherein the creasing tool has a creasing plate provided with at least one creasing projection, and wherein the creasing projection 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.

Abstract: A holographic foil supplying device for a hot foil stamping machine has a reel (26) for holographic foil (20), an advancement system (24) for advancing the holographic foil (20) along a movement path (P) in a feeding direction (F) and a frame (22) supporting the reel (26) and the advancement system (24), wherein the frame (22) comprises a mount (30) for mounting the holographic foil supplying device (18) to the hot foil stamping machine. Further, a hot foil stamping machine is shown.

Abstract: A doctor blade, intended for a doctor blade chamber (6) for a flexography printing unit (1) equipped with a screened cylinder (4), presents in the form of a rectangular blade, with a functional longitudinal side (34) of which a longitudinal edge is capable of making contact with the screened cylinder (4), a longitudinal fastening side (33) and two lateral sides (36, 37). The doctor blade comprises at least one opening located towards the functional longitudinal side (34) and towards the first of the two lateral sides (36, 37).

Abstract: A refrigeration unit (26) for a printing machine is presented. It comprises a dryer interface (28) connectable to a dryer unit (18) of the printing machine in a heat conductive manner and a print interface (30) connectable to a printing unit (14) of the printing machine in a heat conductive manner, wherein the refrigeration unit (26) is adapted to transfer heat (32, 34) from the print interface (30) to the dryer interface (28). Furthermore, a printing machine is described. It comprises a printing unit (14) adapted for printing on a web of carrier material, a dryer unit (18) being adapted for drying printed web of carrier material, and a refrigeration unit (26) as mentioned above.

Abstract: A printing machine comprises a printing module (28) having a flexographic printing mode and a gravure printing mode, wherein the printing module comprises at least two printing cylinders (34, 36) defining the printing mode of the printing module, and a printing tool handling unit being configured for withdrawing and inserting the at least two printing cylinders (34, 36) from and into the printing module, respectively. The printing tool handling unit comprises a coupling interface and the at least two printing cylinders each comprise a complementary coupling interface such that the printing tool handling unit can at least temporarily be coupled to one or more of the at least two printing cylinders (34, 36) via the respective coupling interfaces.

Abstract: An inkjet printing machine for printing individual sheets comprises at least one printing station and a transport system defining a transport track for transporting the individual sheets through the printing station, along a transport direction. The transport system comprises a plurality of gripper conveyors (150) running along the transport track for holding the individual sheets during a printing process in the printing station. Each of the gripper conveyors (150) comprises an energy storage (161) for providing energy for operating a gripper mechanism (171) of the gripper conveyor (150). The printing machine allows for efficient and flexible handling of individual sheets, in particular large format sheets of materials such as corrugated cardboard or other materials that have a certain degree of inherent stability.

Abstract: The invention relates to a recovery device (10) for recovering sample blanks (P) for a processing machine (1) for processing elements in sheet form, the processing machine (1) comprising: a plurality of work stations (300, 400, 500, 600) including at least one waste removal station (600), and a conveying device (70) comprising a plurality of gripper bars (75) configured to drive the elements in sheet form through the work stations (300, 400, 500, 600), the recovery device (10) being characterized in that it comprises: a first removal belt (94), and a second removal belt (95) arranged after the first removal belt (94) in relation to the direction of travel (D) of the sheets, the second removal belt (94) being able to move between: a continuous-conveying position in which first ends (94a, 95a) of the first and second removal belts (94, 95) are close together so that sheet form element waste (F) can be conveyed from the first removal belt (94) to the second removal belt (95), and a raised position in which

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: A platen press with a press toggle mechanism (43) having a driving member (14) and a press toggle column (44). The press toggle column (44) comprises a driven member (38), a first toggle lever (46) assigned to the driven member (38) and a second toggle lever (48) assigned to the driven member (38). The first toggle lever (46) has a first contact surface (50) and the second toggle lever (48) has a second contact surface (52). Both toggle levers (46, 48) contact each other via their contact surfaces (50, 52), and wherein both contact surfaces (50, 52) are convex-shaped.

Abstract: A measuring device for measuring a width (W) between a first edge (4) and a second edge (5) of spaced apart opposed edges (4, 5) of a slot (16) in a product (1?), comprising: a measuring part (18), with a measuring detector and a display (28), and provided with a first tab (37) configured to enter into the slot (16), and a slide (29), defining a longitudinal axis (X), being arranged so as to be adjustable relative to the measuring part (18) along the longitudinal axis (X), and provided with a second tab (46) being configured to enter into the slot (16). The slide (29) is adjusted so that a first surface (44) of the first tab (37) contacts the first edge (4) and a second surface (49) of the second tab (46) contacts the second edge (5). A distance (d) between the first surface (44) and the second surface (49) corresponding to the width (W) is detected by the measuring detector, and the value of the width (W) is displayed by the display (28).

Abstract: A roller for guiding a sheet (101) by friction has a contact surface (2) designed to be in contact with the sheet (101), the contact surface (2) having, overall, a shape of revolution when the roller (1) is at rest, a central portion (6) configured to mechanically connect the roller (1) to a rotating drive element, and a deformation portion (10) located between the contact surface (2) and the central portion (6), the deformation portion (10) being configured to deform elastically when the roller (1) guides the sheet (101) by friction. The deformation portion (10) comprises at least one cut (12) extending from the contact surface (2) to the central portion (6), the cut (12) being arranged such that the deformation portion (10) comprises at least one elastically deformable segment (16).

Abstract: A dryer unit (18) for applying a dryer gas to a sheet material inside a printing machine comprises a dryer body (20) having a first set (26) of dryer gas output openings (28). These openings (28) are arranged in a substantially regular pattern covering an application width (20a) of the dryer unit (18). Additionally, at least one dryer gas output slot (38) is arranged upstream the first set (26) of dryer gas output openings (28). Furthermore, a printing machine is presented which comprises such a dryer unit (18).

Abstract: A dryer unit (26), especially an intracolor dryer unit, for a printing machine is presented. It comprises a web inlet edge (34) and a web outlet edge (36) being substantially parallel to one another and defining a drying area (28) therebetween. Additionally, an air inlet and a first air outlet (38) being connected to the air inlet in an air-ducting manner are provided. The first air outlet (38) is positioned adjacent to one of the web inlet edge (34) and the web outlet edge (36) and a middle axis of the first air outlet (38) is inclined towards the respective other of the web inlet edge (34) and the web outlet edge (36) with respect to the drying area (28). Furthermore, a printing machine is described, comprising an impression drum, at least two ink application units and at least one dryer unit (26) as described above.

Abstract: A drum support assembly (30, 32) for a printing machine is presented. It comprises a drum support body (30a, 32a) having a bearing interface (30b, 32b) for a drum, a lower guide (34) supporting the drum support body (30a, 32a) at a lower end thereof, and an upper guide (36) supporting the drum support body (30a, 32a) at an upper end thereof. Additionally, a pre-tensioning unit (50) is provided pre-tensioning the drum support body (30a, 32a) against the lower guide (34) and/or the upper guide (36). Furthermore, a printing machine is described, comprising a drum and a drum support assembly (30, 32) as described above.

Abstract: The invention relates to a sheet alignment device (5) for a machine for the processing of sheets (B) consisting of a thin, flat material such as paper, cardboard or film, with a feed section, at least one sensor (30, 32) for determining the position and/or alignment of the sheet (B) and also at least two alignment modules (10), each having an alignment roller (12), to which a drive device (14) is assigned in each case, whereby there is assigned to each alignment module (10) a swivel device (16), with which the alignment roller (10) can be swivelled around a swivel axis (A) perpendicular to the feed section. The invention relates also to a machine for the processing of sheets (B) consisting of a thin, flat material such as paper, cardboard or film, whereby a sheet alignment device (5) of the aforementioned type is provided.

Abstract: The present invention concerns an inking for a flexographic or a rotogravure press. The inking system uses a very small amount of ink coupled with an ink source made of two tanks with two different inks. Thanks to feedback given by measuring the output directly on the printed support, the system mixes the ink in the optimal proportions to ensure an optimal printing quality at any time. It can compensate any effect due to environmental changes like the humidity or the temperature. This system, coupled with a seven colours press allows for the replacement of spot colours in most cases thereby saving times and costs.

Abstract: A litho laminating machine has an accelerator table (20), the table (20) being moveable between an operating position and a raised maintenance position, the table (20) being supported on a frame (24) with a bearing (22) defining a pivot axis (P), a lifting device (30, 40) being provided which comprises a spring element (30) biasing the table (20) towards the maintenance position, and an actuator (40) for moving the table (20) from the operating position towards the maintenance position.

Abstract: The invention relates to a method for folding a corrugated cardboard blank (1) intended to form a folded box, the method comprising the following series of steps: i) supplying a blank (1) comprising at least one longitudinal crease (11); ii) applying a liquid to the longitudinal crease (11) so as to make the corrugated cardboard more flexible at the location of the longitudinal crease (11), the application being performed by means of a liquid application arrangement (130) comprising a liquid-ejection nozzle (134) provided with a liquid outlet; iii) folding the blank (1) around the longitudinal crease (11); wherein an aspiration of liquid is produced inside an aspiration compartment (163) of the liquid application arrangement (130) during step ii). The aspiration making it possible to remove any excess liquid which might not have been absorbed by the cardboard and/or the cardboard dust produced.