Bobst Mex Sa

Tesa Sa

Brown & Sharpe Tesa Sa

Marco Cardillo

Roland Duteil

Jean-Claude Rebeaud

Christophe De Gaillande

Lucien Borgognon

A positioning assembly () for positioning a sheet material, especially at an entry portion of a sheet material processing machine, is described. It comprises a support beam () on which at least a portion of a sheet material to be positioned can be placed and a plurality of clamping fingers (). The support beam () is coupled to a drive unit () configured for translationally moving the support beam () along a travelling direction (y) of the sheet material, translationally moving the support beam () along a direction (x) transverse to the travelling direction (y) and rotationally moving the support beam () with respect to a pivot axis (z) being perpendicular to the traveling direction (y) and the transverse direction (x). Each of the clamping fingers () is coupled to an individual clamping finger actuation unit (). Moreover, a sheet material processing machine comprising such a positioning assembly () is presented.

Positioning assembly and sheet material processing machine

A register () for a processing machine () for processing plate-like elements () includes a gripping element () for placing the plate-like elements () in a gripper bar () of a conveyor () of a processing machine () conveying the plate-like elements () in a longitudinal direction, an actuator module () to drive the gripping element (), at least one front correction sensor module () configured to measure the front position of register marks () printed on a front section of the plate-like element () grasped by the gripping element (). The register () includes at least one front pre-correction sensor module (), placed upstream of the front correction sensor module () in the longitudinal direction, the front pre-correction sensor module () is configured: to detect the passage of a front transversel edge of the plate-like element () in at least two longitudinally spaced lateral axis of detection (P, P), one located in front of the other, and to provide measurements to a computation and control unit () of the processing machine () that is configured: to control the actuator module () in order to move the gripping element () toward the gripper bar () and to activate the gripping element () in order to grasp a plate-like element (). Also a processing machine for processing plate-like elements includes the register. A method for placing plate-like elements within a processing machine is disclosed.

Register, a processing machine and a method for placing plate-like elements

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

The opto-electronic system for dimension-measuring device comprises a transparent rule ( ) comprising at least one portion provided with a succession of opaque graduations ( ), a photo-emitter ( ), a photo-detector ( ), an integrated optical bloc ( ) capable of concentrating the light beam generated by the photo-emitter ( ) on the rule portion, and of concentrating the light beam having crossed said rule ( ) on said photo-detector ( ). The optical bloc ( ), the photo-emitter ( ) and said at least one photo-detector ( ) are mounted on the same printed circuit board ( ). The rule ( ) occupies a plane perpendicular to said printed circuit board ( ). The optical bloc comprises optical surfaces disposed opposite each side of said rule ( ).

Opto-electronic system

A comparator measures and compares linear or angular dimensions. The comparator includes a metallic casing ( ), and two bearings ( ) such that a sensing probe ( ), going through said casing ( ) and worked directly into the casing ( ), can be accommodated. Two sockets ( ) of the comparator are firmly attached to the casing ( ). A measuring system of the comparator includes a mobile portion ( ) driven by the sensing probe and a fixed portion ( ) firmly attached to the casing ( ). A housing ( ) of the comparator completely covers the outer sides ( ) of the casing ( ) and is held by the two sockets ( ).

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Lausanne, Switzerland

Marco Cardillo