Sa Martin

Bobst Sa

Martin

Bernard Capdeboscq

Jean-Jacques Barny

Mario Torti

Marc Cuzin

The device for mounting and removing blanket strips of a rotary cutting anvil cylinder comprises means for tightening and loosening the ends of at least one blanket strip so as to allow permutation with the other blanket strips of the rotary cutting anvil cylinder. The means for tightening and loosening the ends of a blanket strip include a locking and unlocking element placed in a groove in the periphery of the cylinder body of the rotarycutting anvil cylinder, the groove extending over the entire axial width of the cylinder body. The locking and unlocking element comprises a removable slide moving in the groove. the repective slide includes angled guiding grooves and also grooves all in the shape of linear cams into which fit rollers fixedly attached to at least one jaw which is moveable so as to act on at least one end of the blanket strips. The moveable slide is actuated by atraction device which comprises an adjusting screw fitting into a nut attached to the moveable slide.

Device for mounting and removing die blankets of a rotary cutting anvil cylinder

The disclosed multifunctional inking station comprises a plate cylinder (2), a textured cylinder (3) and means for supplying a determined quantity of ink to the textured cylinder (3). The means for supplying a determined quantity of ink to the textured cylinder (3) comprises at least two chambered doctor blade units (4,5), placed facing one another on either side of the textured cylinder (3). The textured cylinder (3) in use is always the same whatever kind of printing work to be performed may be. Use of one or the other of said chambered doctor blade units (4,5) can be selected in accordance with the kind of printing work to be performed without having to replace the textured cylinder (3).

Multifunctional inking station for a flexographic printing machine

A station for piling, separating and ejecting batches of workpieces includes rollers for carrying the workpieces against a front stop and placing them on a table movable in a descending fashion, separating arms connected to a horizontal separator-carrying crossbar and an outlet conveyor at a level of which the table descends for removing the batches. The station includes temporary front and rear holders for supporting the workpieces as the separator is withdrawn to move the batch from the table onto the outlet conveyor, which may have a driven portion so that a shifting force for transferring a batch from the table to the conveyor occurs both on the uppermost and lowermost workpiece of the batch or stack.

Station for piling, separating and ejecting batches of plate-like

A device for hooking flexible printing plates which have a supporting sheet with one or more printing motifs onto a rotary printing cylinder includes a front hooking strip having an almost U-shaped cross section engaged in a hook-shaped groove arranged along a surface of the cylinder. One or more stops are provided on the supporting sheet adjacent to the hooking strip and are received in a second groove formed in the cylinder, which has a cross sectional profile corresponding to the profile of the stops. The second groove can be in communication with third grooves extending at right angles thereto and the second groove and third grooves can be in communication with a source of vacuum to facilitate holding the flexible printing plate on the cylinder.

Device for hooking flexible printing plates on a printing cylinder

In a system and method for feeding sheets from a stack, a support arrangement is provided having a plurality of rows of rollers mounted on support levers to support the stack above a first carrier. The rollers are lowered so that a lowermost sheet of the stack contacts the first carrier which is driven to cyclically accelerate the lowermost sheet in a direction perpendicular to the rows so that the sheet achieves a linear velocity. A second carrier is driven at a constant speed to transport the sheet away from the first carrier at the linear velocity. Each row of rollers is sequentially raised when a trailing edge of the sheet has moved beyond that particular row.

Apparatus and method for feeding sheets from a stack

A sheet supporting arrangement comprises an upper sheet supporting grid and a lower sheet supporting grid, each made up of rods of jacks which are arranged on front and rear walls of a stacker. The upper grid consists of a series of jacks, each comprising an elastically, though not permanently deformable rod which is set at one of its ends in a piston that is also elastically, though not permanently deformable. The elastically, though not permanently rod is then guided within a bearing when it moves as well as by the circumferential surface of the piston sliding on the inner cylindrical surface of the cylinder forming the jack.

Sheet supporting arrangement for use in a stacker

A circular tool arrangement which includes a circular rim having an inner rim with the circular rim having a plurality of circular seats arranged on a first radius and the inner rim having a plurality of circular seats arranged on a second radius. Tools shaped as either cutting members or creasing members are arranged on the rim and have projections which are engaged in one of the groups of seats and each of the arrangements has a ring provided with concentric grooves for receiving projections on the side of the tool facing the ring. The rings are moved in the clamping engagement by a spring arrangement which can be released by applying axial pressure on the heads of the spring arrangement to shift the ring from a clamping position to an open position to enable removal of the tools.

Circular tool arrangement

Sheet-folding machine, especially for packaging cases made of corrugated cardboard, after they have been produced and printed. It incorporates advancing (10) and folding (22) belts which are maintained at the exact cycle of the machine by means of pulleys (14) provided with recentering fingers (15). The conveyor belts are provided with suction elements (19), and the folding belts are provided with push-studs (25) arranged to correspond to the turned-down portions (5) to be folded.

Sheet folding machine

An apparatus for the automatic supply of the magazine of the feeder on a slotter/printer with a high production rate for making cases consisting of corrugated cardboard, comprising a device (3, 10, 4) intended for separating a bundle from the top of a stack of blanks (14) by placing this bundle upright on its edge, a retractable device (4) intended for causing the virtually vertical drop of this bundle, and a guide and receiving device (5, 7) making it possible to stop the bundle, still standing on its edge, a device (6) for squaring the bundle laterally after its drop, a device (27, 7, 8) for raising the bundle to a horizontal position, and a device (9) for receiving and discharging this bundle.

Process and apparatus for the automatic supply of a machine for

A process for producing a strip (4) of corrugated cardboard by gluing one or more sheets (8, 10) of single-face corrugated cardboard and a sheet (6) of covering paper. At least the corrugations of the upper sheet (10) are heated by means of an infra-red radiation panel (40), after the glue has been deposited on them in the gluer (1) and before the sheets come in contact with one another in the double-face machine (2).

Process and apparatus for producing a strip of corrugated cardboard

Cardboard box forming and printing machine on which it is possible to effect a change of block on the printers without loss of time detrimental to the output of the machine. The printing modules of the machine are equipped to enable lateral translation either of the block-holder cylinder alone, or of the unit constituted by the block-holder cylinder and its inking device, as well as retractable means for propelling the cardboard which can be positioned when the block-holder cylinder is retracted laterally so as to continue to ensure the operation of advancing the cardboard provided by the latter before its lateral retraction.

Retractable propulsion apparatus for cardboard box printing machine

In a machine for separating and discharging products in sheet form, in which the sheets are supplied by a conveyor and stacked in a stacking position defined by a stop abutment associated with the conveyor, each successive sheet being introduced under the preceding sheet in the stacking position, a roller is provided at the upstream lower edge of the stack, the roller having peripheral cogs and being arranged so that the upstream edge of the lowest sheet in the stack rests against it and is raised by rotation of the roller.

Machine for separating and discharging products in sheet form

In a device for the synchronized introduction of sheets into a treatment machine, e.g. a printer-slotter or cutter for processing corrugated cardboard sheets, in which a reciprocating pusher pushes forward the lowermost sheet of a stack in a magazine between two stops and into engagement with feed rollers, the stack rests on the upper run of a set of endless belts, which upper run extends over a suction box which is maintained continuously under suction during forward movement of the pusher, the belts are driven forwardly to facilitate movement of the lowermost sheet from the bottom of the stack, and belts being immobile during the return movement of the pusher.

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St. Just-Chaleyssin, France

Bernard Capdeboscq