Bobst Sa

Bobst Mex Sa

Peters Maschinenfabrik, Gmbh

Bobst (shanghai) Ltd.

Jean-Claude Rebeaud

Jens Schulz

Martin Hoffmann

Marco Cardillo

Haoming Song

Ludovic Cuennet

Peicong Qi

Yann Delley

Steven Stojanovic-Roth

Fabio Bettinelli

Werner Fuchs

Sandro Morelli

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.

Advance-shaft transition apparatus and hot foil stamping and die-cutting equipment

The invention relates to a suction brake for use with a sheet conveyor configured to convey a succession of flat elements in sheet form along a conveying path between a first location and a second location, the suction brake comprising:

Suction brake, sheet conveyor with such suction brake and method of applying a retardation force to a moving sheet of material

The invention relates to a gripper bar body for a gripper bar in a gripper carriage arrangement in a machine for treating sheet material, the gripper bar body being configured to carry gripper brackets for movement between sheet gripping and sheet releasing positions. The gripper bar body is formed as a hollow structure comprising at least two different materials, the two different materials comprising at least a metal material and a composite material and the at least two different materials being at least partly arranged in a superposed manner. The resulting bar has a better resistance to wear than the ones of the state-of-the-art.

Gripper bar body for a gripper carriage arrangement

A machine for processing elements in sheet form, the machine having chainsets which move gripper bars for moving sheet elements through the machine. At least one tensioner device generates a tension force in the chainsets. The chainset tensioner device includes a drive member capable of generating a variable force, having an intensity dependent on the instantaneous production rate of the machine. Chainset wear is greatly reduced, and the life of the chainsets is lengthened considerably.

Machine for processing elements in sheet form, comprising a chainset tensioner

Method and apparatus for placing plate-like elements () within a processing machine (): the machine including a feeder () for placing the elements () in a plurality of gripping members () of a conveyor () in successive stations (). The feeder () has a fixing device () for elements. The feeder () is driven by a computation and control unit (). The method includes successive steps during advancement of each plate-like element () of measuring the longitudinal and angular placement error of the plate-like element () relative to a theoretical position, by detecting its front or rear edge, controlling the feeder () according to the measured placement errors, activating the fixing device () to attach the plate-like element () to the feeder (), then measuring the longitudinal, the transverse and angular placement error of the plate-like element () attached to the feeder (), relative to a theoretical position, by detecting register marks () printed on the element ().

Device and method for placing plate-like elements in a processing machine

A device for controlling delivery of sheets from a stack includes a lift for a stack of sheets. A sheet inserter removes sheets from the top of the stack to move them. A detector detects the front top level of the stack and measures the extent of variations in the level of the stack. A computer receives a measurement from the detector and acts on a first electric motor for the lift to raise the stack. A source of information connected to the computer relates to the supply frequency in real time and to the nominal thickness of the sheets. The computer output is connecting to a sheet supply frequency varying device for controlling the first motor to the lift. The computer is programmed so that the signal at its output is characteristic of the difference between the measured level of the stack and the calculated level thereof. An auxiliary supply device may support and raise the stack, based on the computer program, independently of the lift.

Device for controlling the means delivering sheets to a machine

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

Device for braking a machine for processing elements in sheet form

Sheet-processing machine

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.

Delivery station for a converting press

A device for positioning a sheet element in a processing machine has a movable base, a shelf movable with and relative to the movable base, and actuators which are operative to controllably displace the shelf relative to the movable base in such a manner that a front edge of the sheet element engaged by the shelf is stopped in a predetermined position.

Method of positioning sheet elements in the introduction station of a processing machine and a system for performing the method

This device comprises devices (,) for securing tools (,) to a supporting and heating plate (,). The heat exchange surface of the supporting and heating plate (,) is continuous, the securing devices (,) being arranged to permit securing of each of these tools (,) in any position within an adjusting range determined on the surface of the supporting and heating plate (,). This permits adjusting the position of, the securing the tools (,) to the supporting and heating plate (,). This device also comprises devices (,) for positioning the supporting and heating plate (,) on a removable frame (,) of a press for hot transfer of portions of metallic films onto a paper or cardboard substrate.

Device for hot-pressure transfer of metallic films onto a substrate of paper or cardboard

The planar member for a stripping station for a machine for cutting sheet elements consists of a board which may be provided with openings if it is a stripping template, or if it is one of the upper or lower stripping boards is provided with working parts, on one surface and on an opposite surface is provided adjacent a downstream edge with a centering post and at least two mounting strips, an upstream edge of the member is provided with one or more mounting strips which strips protrude from the edges of the board and one of the sides of the board is provided with grasping handles. The planar member is mounted in a frame which has means for engaging the centering post and the mounting strips adjacent the downstream end so that the planar member is not subjected to warping. In addition, the planar member may be received in a table which has an arrangement for engaging the mounting strips to position the board so that a second stripping member such as the lower stripping member can be mounted above the planar member to enable positioning the stripping pins relative to the working parts of the planar member.

Planar member and a control table mounting the planar member

The planar member for a stripping station in a machine for cutting sheet elements consists of a board which may be provided with openings if it is a stripping template, or if it is one of the upper or lower stripping boards is provided with working parts, on one surface and on an opposite surface is provided adjacent a downstream edge with a centering post and at least two mounting strips, an upstream edge of the member is provided with one or more mounting strips which strips protrude from the edges of the board and one of the sides of the board is provided with grasping handles. The planar member is mounted in a frame which has means for engaging the centering post and the mounting strips adjacent the downstream end so that the planar member is not subjected to warping. In addition, the planar member may be received in a table which has an arrangement for engaging the mounting strips to position the board so that a second stripping member such as the lower stripping member can be mounted above the planar member to enable positioning the stripping pins relative to the working parts of the planar member.

Planar member for a machine for cutting sheet elements, and associated

A blower arrangement for detachment of a metallized belt from a sheet and for creating a braking force on a sheet, which belt and sheet are situated between platens of a press in a machine for printing sheet elements which comprises a bar arrangement near the exit of the press in which is provided a series of nozzles having the form of flattened parallelpipeds, each of these nozzles being sealed by a translational mobile cylindrical valve member movable perpendicular to an air supply duct with the valve member having a communication passage. The plane of the jets coming from the nozzles is directed approximately horizontally between the metallized belt and the sheet.

Blower arrangement for detaching a metallized belt from a sheet and for

An apparatus for processing used belts and bands of a machine for printing sheet elements comprises an accumulation bin having an upper portion for receiving the belts and bands from a supply arrangement and a lower portion provided with a grinder for grinding the belts and bands into small pieces. The grinder is automatically placed in operation intermittently under the control of a control arrangement, and the output of the grinder either discharges directly into a transport receptacle for the waste or into an evacuation pipe which conveys the waste to a transport receptacle at a remote location.

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Le Mont, Switzerland

Jean-Claude Rebeaud