Abstract: The present invention relates to a dryer for treating a moving printing web in a rotary printing press with gas, having a nozzle body. The dryer according to the invention is characterized in that the nozzle body has at least one opening for the exit of heated gas and has at least one opening for recirculating the cooled gas.

Abstract: The present invention relates to a blowing means unit and a hot foil stamping and die-cutting device. The blowing means unit fora hot foil stamping device, comprising: a blowing means having a blowing part configured to inject a gas stream to a location of foil material to separate foil and a supporting part for supporting the blowing part; supporting means supporting the blowing means; and lifting means connected to the supporting means for moving the blowing means between a first position and a second position, in the first position, the blowing part of the blowing means is at a working level, and in the second position, the blowing means is at a non-working level to give access to an operation area.

Abstract: The present invention relates to an advance shaft transition apparatus for sheet processing equipment, which comprising: a plurality of advance shafts for feeding foils, the plurality of advance shafts being arranged along a horizontal direction; an advance shaft supporting frame, the advance shaft supporting frame supporting the ends of the advance shafts so that the advance shafts can freely rotate; and a lifting means, the lifting means is provided with a driving means and a transmission mechanism, the lifting means is connected to the advance shaft supporting frame to enable the advance shafts to move between a first position and a second position, at the first position, the advance shafts is operably rotated to feed the foil, and at the second position, the advance shafts being lifted up from the first position to leave a position where the foil can be fed.

Abstract: A conveyor belt assembly (10) for transporting single sheets or stacks of a packaging material is described. It comprises at least one conveyor belt (12a) being arranged over at least two pulleys (20a-20d), wherein at least one of the pulleys (20a-20d) is adapted to drive the conveyor belt (12a) in a conveying direction (15). Furthermore, the conveyor belt assembly (10) comprises a conveying section (22) adapted for transporting the sheets or stacks and a return section (24) adapted to return the conveyor belt (12a) from an end (22b) of the conveying section (22) to a beginning (22a) of the conveying section (22).

Abstract: A control system (100) for a functional section (I, II, III) of a paper processing device (140). The control system (100) has at least one safety-monitoring camera (110, 120, 130) which is arranged in the functional section (I, II, III) such that a functional region of the functional section (I, II, III) can be captured by the safety-monitoring camera (110, 120, 130). An operating unit (101) of the system (100) is designed to operate the functional section (I, II, III), and image data of the at least one safety-monitoring camera (110, 120, 130) can be selected by the operating unit (101). A display unit (103) is configured to display the selected image data such that a user allows or blocks the operation of the functional section (I, II, III) based on the displayed image data. A safety device (102) is coupled to the safety-monitoring camera (110, 120, 130) and the operating unit (101), and the safety device (102) receives image data of the safety-monitoring camera (110, 120, 130).

Abstract: A sleeve station dedicated to the assembly of a sleeve and a mandrel for a flexographic press. The sleeve station can be loaded manually, and assembles the sleeve with the mandrel in a vertical orientation when both are in a vertical orientation with aligned axes, avoiding problems caused by the bending of the sleeves during assembly. After loading of the sleeve, it is returned to a horizontal axis orientation.

Abstract: A method of inspecting the quality of blanks (2n) to be processed into packaging material, includes the following steps: A carrier (1) with a plurality of blanks (2n) is supplied. Each blank (2n) is identified in accordance with its position (n) on the carrier (1), and a scanned image (Sn) of each blank (2) is obtained, and each scanned image (Sn) is compared with a reference image (Rn) associated with the specific position (n) of the blank (2n) from which the image was taken. Based on the result of the comparison, the respective blank (2n) is accepted or rejected. Furthermore, there is a quality inspection system (10) comprising a digital imaging unit (12) for scanning images of blanks (2n) on a sheet (1), a unit (16) for generating individual reference images for each blank, a storage (18) for storing the individual reference images (Rn), and a comparator (20) for comparing scanned images (Sn) of a blank with the individual reference image (Rn) for this blank (2n).

Abstract: The module (3) comprises a frame having vertical pillars (30A, 30B), a rotary turnover structure (4) arranged horizontally between the vertical pillars and comprising rotation shafts (400A) supported by bearings (300A) with which the vertical pillars are respectively equipped. A motor (303B) applies a first mechanical torque to one of the rotation shafts when a folding package turnover is ordered in the machine. The module also comprises additional means (5) for applying a second mechanical torque to the other rotation shaft upon a folding package turnover.

Abstract: A Support device (14) for storing or transporting single sheets or stacks of a packaging material is described. It comprises a multitude of slats (32) being arranged on a basic component (34), wherein the slats (32) are in an upright position and spaced from each other in a generally parallel manner such that respective side contour contact sections (36) of the slats (32) form a substantially flat support surface configured to support the single sheets or stacks .

Abstract: The present invention relates to a device or method for detecting and adjusting the printing parameters in flexographic printing machines.

Abstract: A vibrating device (14) ensures the ordered rearrangement of folding boxes (3) in a receptacle (2) for an evacuation conveyor (8), provided with driving elements (12) whose vertices define a horizontal transport plane (S2).

Abstract: A module (M) for a machine (100) for processing flat objects having a support structure (1, 2, 3, 4) above which the flat objects are transported along a given transport path. The module includes a discharge system for such objects, the discharge system is capable of discharging any flat object which falls below the transport path.

Abstract: Sheet feeder (4) for a machine (1) for the processing of sheet material such as paper or films, having a drive shaft (10), which extends substantially perpendicular to a sheet feeding direction and is provided with at least one suction gripper (12), which is rotated above the sheet material, when the drive shaft (10) is driven, wherein the suction gripper (12) is repositionable between an inactive position, in which it does not cooperate with the sheet material, and an active position, in which it can grip on the top side of the sheet material and carry this along.

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: 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: A chain tensioner (50; 500) for a conveying device (70) of a machine (1; 1?) for processing elements in the form of sheets (10), the conveying device (70) includes two lateral chain sets connected to the ends of transverse gripper bars (75) able to grasp the elements (10) and at least one chain-guiding device (90) configured to guide a respective chain set (80); the chain tensioner (50; 500) includes: an actuator (9) controlled by a control unit (8), a movable support (11), a transmission element (12) borne by the movable support (11), a rotary element (13) rotated by the actuator (9) and cooperating with the transmission element (12) in order to exert a thrust force on the movable support (11), the rotary element (13) being rotatable, to adjust the tension of the chain set (80). The actuator (9) is controlled in synchronism with the machine angle (MA). A machine (1; 1?) for processing elements and a method for tensioning the chain sets (80) of the conveying device (70) are disclosed.

Abstract: The invention discloses an inking system for a rotary printing machine, like a flexographic or rotogravure press. The inking system uses the nip area between two cylinders of the machine as the sole source for inking the printing cylinder. This results in an inking system with very little ink, thereby gaining in reaction time and ink waste.

Abstract: The invention relates to a method for checking the quality of a product (1) comprising at least two cardboard portions (2) connected to each other such that a slot (10) extends between the cardboard portions from one side of the product (1) to the opposite side, with the slot (10) being expected to extend perpendicularly with respect to an outer edge of the product (1), comprising the steps of: capturing a 2D image of the slot (10) at one side of the product (1) and of the slot at the opposite side of the product, analyzing the images so as to recognize the slot (10), comparing the positions of the slot of one product at the opposite sides, making a determination whether or not a difference between the positions is within a predefined range of tolerance.

Abstract: This invention discloses a very compact play-free bearing unit. The bearing runs without play while having a reasonably large play when assembling and disassembly the bearing unit from its axle. The bearing unit uses three bearings, one of which is mobile, and thanks to a preloading mechanism the play is removed when loaded. Thanks to an amplification lever, the preloading unit is able to function either with a pneumatic actuator or with a hydraulic actuator.

Abstract: A register (20; 60) for a processing machine (1) for processing plate-like elements (10) includes a gripping element (21; 22) for placing the plate-like elements (10) in a gripper bar (31) of a conveyor (30) of a processing machine (1) conveying the plate-like elements (10) in a longitudinal direction, an actuator module (201, 202) to drive the gripping element (21; 22), at least one front correction sensor module (7) configured to measure the front position of register marks (12a) printed on a front section of the plate-like element (10) grasped by the gripping element (21; 22).