Abstract: An independent motor/reductor drives a conveyance device that feeds a converting press. The converting press includes a number of stations including a feeding station, a converting station, a waste stripping station and a delivery station. The conveyance device services the stations and includes two endless gripper bar chains to convey sheet material through the converting press. A transverse drive shaft drives the conveyance device under the control of the independent motor/reductor. The independent motor/reductor provides motion trajectories for the conveyance device that are independent of, but synchronized with, the serviced stations. The arrangement improves throughput, reduces machine wear and results in a simplified design.

Abstract: A device for stacking sheets delivered on a first conveyor in a plurality of parallel streams of overlapping sheets, includes a second conveyor moving slower than the first conveyor that compacts the streams as they exit the first conveyor; a third conveyor that receives the streams from the second conveyor; and a plurality of stackers, each aligned with one of the streams exiting the third conveyor, formed of endless belts positionable horizontally which cooperate with stop members to stack the incoming sheets. Completed stacks are then moved downstream on the belt. When sheets in a stream are determined to be defective; its belt for that stream is tilted, and the stream falls onto a fourth conveyor for disposal.

Abstract: This device for breaking the nicks connecting two edges of a line of cut of stacked sheets of cardboard (5) placed on horizontal support and transportation means (8, 9, 34a, 6, 30) for moving the said sheets in a longitudinal direction, comprises upper clamping means (21, 22, 32) for clamping the stacked sheets (5) against the said support means (8, 9, 34a), first means (35) for longitudinally moving apart the said support and transportation means (8, 9, 34a, 6, 30) and the said clamping means (21, 22, 23) on both sides of a transverse line of cut of the said stacked sheets, and second means for moving apart transversely a part of the said support and clamping means (8, 9, 21, 22) on both sides of a longitudinal line of cut. It further includes second horizontal support and transportation means for moving the said stacked sheets (5) in a transverse direction.

Abstract: Supporting, fastening and reinforcing members for a plane tool with apertures which is used in a waste stripping station of a diecutting press. The reinforcing members are interfitted into a stripping board of the stripping station easily without the use of any mechanical parts, such as rivets, screws, bolts or adhesives and serve to rigidify and strengthen the stripping board against breaking or bending during the stripping operation.

Abstract: A feeding and aligning device for a folder-gluer of blanks of folded and pasted cardboard boxes has at least one thrust to stop the blanks in order to crosswise align the angles between the various fold-pasted parts thereof before introducing them into a delivery area where these blanks are pressed. A mechanism introduces the blanks into the delivery area. The thrust has a driving mechanism that defines a moving trajectory for the thrust above the blanks, forming an acute angle with the conveying direction of these blanks which are moved by a conveyor that moves it along the conveying direction.

Abstract: A device for positioning sheets in a station of a sheet-processing machine comprising a movable bearing surface for holding at least one edge zone of a sheet, actuators driving the bearing surface in the plane thereof, sheet grippers accompanying the motion of the bearing surface and adapted to grip or release the edge zone of the sheet between sheet grippers and the bearing surface. The sheet grippers are connected to the bearing surface by at least one joint comprising a number of levers forming a parallelogram articulated around horizontal pivot axes. A piston comprising a permanently compressed spring eliminates the radial clearance between the pivot axes. Lateral clearance thereof is eliminated by a spring strip which is rigid in the transverse direction.

Abstract: An apparatus for conveying blanks or sheets that are arranged in piles includes a frame that has an input and an output and a pre-section that aligns the piles of blanks along a longitudinal conveying path. The pile of blanks is conveyed to a turn-over grip that swivels around the horizontal axis that extends transversely to the longitudinal conveying path. The turn-over grip includes two conveying units that are juxtaposed to one another with one of them being used to deliver the piles entering the turn-over grip and the other which is used to remove the piles after the turn-over grip has turned the pile upside down. A tightening mechanism presses one of the conveying units towards the other during the rotation of the turn-over grip. A pusher carriage is situated between the two conveying units and driven by a motor.

Abstract: A device for processing of printing defects detected in a printing machine which in a first phase delivers a printed support. The printing defects (20, 21, 22) on the support (1) are detected in a detection station. A database connected to the detection station can simultaneously store information relating to each detected printing defect. The processing device connected to the database can, in a second phase, process the stored information in order to evaluate the quality of overall printing of the printed support and can use various possible scenarios, even before the support (1) is cut in a third phase, to define all those portions (23) of the support which should be removed in order to improve the final quality of the printed product within the limit of a restriction in the number of portions which it has been agreed to cut out.

Abstract: A presetting table for preparing a system of converting tools in a stripping station of a converting press positions the following face to face, in a position simulating centring along the machine axis and positioning at the first rule: the stripper-holder plate of an upper stripping die, a central stripping board and a replica of a pull-out frame carrying telescopic pins. The upper stripping die is prepared by using the central stripping board as a template.

Abstract: The device for rotary converting a web or sheet matter equips a processing station arranged in a machine (2) particularly producing packagings by means of cylindrical tools (10, 11). These tools are arranged in a cassette (7) and rotated by a driving device (40) equipped with a motor (42). The cassette (7), coming from an extrinsic equipment to that which normally equips the machine (2), is placed in another so-called adaptive cassette (20), which is removable and secured to the driving device (40). The latter is arranged on the adaptive cassette (20).

Abstract: The braking device comprises at least one flexible braking means (1) extending across the trajectory of the sheets (2) and mounted so as to pivot around a transverse axis (4) so that its trajectory around the axis intersects the trajectory of the sheets (2), the direction of rotation of the end of the flexible braking means (1) and intersecting the trajectory of the sheets (2) being opposite the direction of motion of the sheets, and also comprises drive means for pivoting the braking means (1) in dependence on the longitudinal dimensions of the sheets (2) and the frequency with which they pass. The means driving the braking means (1) around the transverse axis (4) comprise a variable-speed electromagnetic actuator (5) connected to control means which in real time record the parameters relating to the longitudinal dimension of the sheets and the frequency with which they pass.

Abstract: A sheet-processing machine operating in cycles, inter alia a shaping press, during which a cyclic excess air pressure is produced in a covered part of the machine, where the covered part has an opening (6) on the perimeter of which a diaphragm is fixed, the diaphragm being made of an elastic material which is substantially impermeable and resistant to the oil lubricating the machine (9). The diaphragm can be a fabric (3) substantially permeable to air and stretched on a frame (2) surrounding the opening (6).

Abstract: The supply device for a machine working cardboard sheets comprises at least one conveying unit for the conveyance one by one of said sheets, driving means (2) of said conveying units, at least one hold-down stop of a pile of said sheets above said conveying units and at least one raising unit (3) connected to each conveying unit, these raising units being alternatively movable between two restricted positions, one above the upper level of said conveying units, the other as they are aligned compared to this upper level. Each raising unit (3) is connected to a programmable control unit (T, C) in order to permit the single command of each one of said raising units (3).

Abstract: A detachable inking device for a flexographic printing machine, a manipulating device for removing and replacing the inking device, a cleaning device, and a repair station for refurbishing the inking device. The inking device itself is a chambered doctor blade (9) mounted on two lever-supports (13, 14) through which ink is supplied from a reservoir. The lever-supports are rigidly attached to a shaft (11) which is pivotable between the frames (34) of the flexographic printing machine. The chambered doctor blade has a body (25) made of light material, crossed at one of its ends by a tube (26) emerging from the bottom (28) of body (25), and at the other end by a tube (40) having its opening part (29) at level with the bottom (28) of the body (25). The latter rests on seals (38, 39) secured to the lever-supports (13, 14) to which are attached centering and fixing means (17, 18) allowing a quick loosening of the chambered doctor blade (9) without the help of any tool.

Abstract: Device and method for the automatic register setting of printings printed by plate cylinders in a rotary machine using inks of a plurality of colors. The printing machine particularly comprises a succession of printing units, at least one pulse generator, two pull rollers located downstream of the printing units, a combination of plate cylinders and compensating rollers to correct some register errors, scanning heads each located near and downstream to the respective printing units. Each printing unit particularly includes one of the plate cylinders as well as one of the pressing cylinders. Each pressing cylinder is controlled by a control unit.

Abstract: This automatic system (1) detects printing faults on metallized strips (3) or any other printing support comprising a predominance of specular color surfaces. The said system, arranged in a blackout casing (2), comprises an arm (30) on which there can move automatically a lighting unit (10) provided with a video camera (55). The camera has a variable-focus lens (56) which, through a semi-transparent filter (57) disposed in an oblique position in front of the lens, continuously films a portion of the strip (3) of a format (7) of variable size. The illumination of this strip portion is provided by two direct-illumination flashlights (12, 14), provided primarily to illuminate the non-specular surfaces of the strip, and by two other indirect-illumination flashlights (11, 13), advantageously provided to illuminate the specular color surfaces.

Abstract: A delivery station for a converting press for paper or cardboard sheets having a transverse roller located downstream from the delivery area of a blanking station, and a movable carriage downstream from the roller. The carriage receives a plurality of bars that form a non-stop delivery rack. The carriage is guided for motion in the longitudinal direction by a transporting device. The transporting device, the transverse roller and the carriage are mounted on a vertically movable frame suspended on opposite sides by chains ran by a power source through a transmission shaft. The vertical run of the delivery rack is adjustable between a high position and a low position, the low position being determined by the length of the lower blanking tool joggers of the blanking station.

Abstract: Device (1) for the longitudinal alignment of plate elements (2) within an infeed station of a machine working them. The aforementioned device is secured by two lateral brackets (9, 10) between which is settled a conveyor track for the said plate elements, comprising two plates (5, 6) folded downwise according to a line (7) non-perpendicular in the meaning of the shifting (3) of the said plate elements (2). The latter are moved downstream by means of at least two conveyor belts running around at least two pulleys (15, 16) secured between unmovable bearings (11-14) at the input of the said device. The device (1) has on its leading edge a protection plate (39) over which are flaps (30-32) movable and interdependent of a transverse shaft (24) connecting the leading edges of the two lateral brackets (9, 10). This shaft is moved by an alternate rotation between 0 and 45 degrees, synchronized with the production speed of the machine in order to allow the successive alignment of the said plate elements (2).

Abstract: The sheets conveyance device, used in a converting press for paper or cardboard sheets comprising at least one feeding station, a converting station, a waste stripping station and a delivery station for converted sheets, comprises two endless gripper bar chains (5, 6) assembled for conveying the sheets from the feeding station to the delivery station, a transverse driving shaft (2) equipped with driving wheels (3, 3′) of the endless gripper bar chains (5, 6) and at least one device for sheets capture secured to the endless gripper bar chains (5, 6). The transverse driving shaft (2) is separately driven from the other press stations by at least one independent motor/reductor (1). The independent motor/reductor (1) is able to function by driving cycles including at least one motion phase and one deceleration and/or breaking phase controlled by a control device (CDE), each independent motor driving cycle duration being equivalent to a converting cycle duration of said converting station.