The present invention relates to a vacuum plate (10) which may be used in a vacuum plate sheet material handling system (1) in which sheet material articles (4) are handled by the vacuum plate, for example by being lifted, held down, moved or deposited by the vacuum plate. The vacuum plate (10) comprises a first wall (22), a plurality of bores (24) in the first wall extending between opposite first and second sides (18, 57) of the first wall, and at least one air outlet (25) for connection to a source of vacuum pressure (16) for applying a vacuum pressure to the bores from the second side (57) of the first wall. The first wall (22) provides, in use, a vacuum lifting surface (20) for pulling and holding the sheet material article (4) to the vacuum surface when vacuum pressure is applied to the bores. Each bore comprises a flared opening (91) terminating at the vacuum surface (20) for admitting air (100) pulled through the bore by the applied vacuum pressure, and opposite this opening, an exit (99) for said air pulled through the bore, this exit being surrounded by a rim (96) that extends above a surrounding surface of the second side of the first wall.

A substrate transferring apparatus for applying suction to and transferring the substrate includes a suction pad including a flat suction surface including poly oxy methylene (POM) and a plurality of suction holes, a duct for applying suction to withdraw air through the suction holes of the suction pad, and a controller configured to move the suction pad and to control suction of the air.

According to the present embodiment, a control device of a conveyor system controls a moving device and a suction device to suction the transport target article so that an approximate center of an opening of at least one suction unit is located on a first imaginary line, and remaining suction unit is located on one end side in a longitudinal direction of the transport target article with respect to the first imaginary line, controls a turning-over section to be in a front-back reversing orientation, and performs control so that suction of the transport target article by the suction units is released after the suction device is in the front-back reversing orientation.

A method of grouping sheet units, which belong together in sheet groups, a sheet stream comprising two superposed sheet units each by means of a grouping unit, a grouping unit for a sheet handling system, and a sheet handling system that allow a high processing speed and a high cycle efficiency of a sheet handling system are disclosed. A sheet unit can be held back in the grouping unit. Depending on whether the downstream subsequent sheet units transferred into the grouping unit belong to a sheet group, the held-back sheet unit can be released by itself and together with one or together with both downstream subsequent sheet units.

A vacuum lifter apparatus for lifting sheet material articles, comprises an upper chassis joined to a substantially planar lower suction plate and an airflow suction system for conveying vacuum air pressure to the suction plate. The suction plate comprises a lower side and an upper side, the upper side of the suction plate being affixed to the chassis, and the suction plate lower side providing a downwardly oriented and substantially planar suction lifting surface for making contact with the upper surface of said articles, said suction lifting surface comprising a plurality of laterally adjacent portions, each of said portions comprising a plurality of orifices through which, in use, air is drawn along airflow paths by the airflow suction system to provide a suction lifting pressure. The airflow suction system comprises at least one air outlet for connection to a source of vacuum air pressure, and between said outlet and the suction plate at least one airflow manifold, said manifold comprising a plurality of branched ends, said ends being configured to convey said vacuum air pressure from said outlet to corresponding portions of the suction plate.

A suction device for retaining and/or transporting objects, comprising a main supporting body (2) and at least one operating plate (3) provided with suction holes (7) connected to and suction means, in which the operating plate (3) is removably associated with the main supporting body (2) and has a second connecting face (5) coupled to a first connecting face (4) of the main supporting body (2), and in which the device also comprises one or more magnets (13) and one or more ferromagnetic bodies (14), each ferromagnetic body (14) being magnetically coupled to one or more magnets (13) when the operating plate (3) is associated with the main supporting body (2) for keeping the operating plate (3) fastened to the main supporting body (2), each magnet (13) and the ferromagnetic body (14) magnetically coupled to it being constrained respectively one to the operating plate (3), the other to the main supporting body (2).

A vacuum plate which may be used in a system in which sheet material articles are handled by a vacuum plate. The vacuum plate comprises a first wall, a plurality of bores in the first wall, and at least one air outlet for connection to a source of vacuum pressure for applying a vacuum pressure to the bores. The first wall provides, in use, a vacuum lifting surface for pulling and holding the sheet material article to the vacuum surface when vacuum pressure is applied to the bores. Each bore comprises a flared opening terminating at the vacuum surface for admitting air pulled through the bore by the applied vacuum pressure, and opposite this opening, an exit for the air pulled through the bore, this exit being surrounded by a rim that extends above a surrounding surface of the second side of the first wall.

A positioning device (38) for holding a flat flexible part, especially a sheet, on a positioning surface (46) is presented. It comprises a body (44) having a suction opening (50) for aspiring the part and a fluid port (52) being in fluid communication with the suction opening (50). Furthermore, an abutment protrusion (60) is provided on a connection surface (48) for abutting the positioning device (38) against a base part (28) to which it may be mounted. Also a sealing protrusion (64) is arranged on the connection surface (48) for compressing a gasket (42) being interposed between the positioning device (38) and the base part (28). A height (H.sub.a) of the abutment protrusion (60) is bigger than a height (H.sub.s) of the sealing protrusion (64). Additionally, a positioning assembly (24) is presented which comprises at least one such positioning device (38). Furthermore, a sheet material processing machine comprising at least one such positioning assembly (24) is introduced.

A machine for processing individual sheets comprises at least one processing station, in particular in inkjet printing station, and a transport system (100) for transporting the individual sheets through the processing station, along a transport direction. The transport system (100) comprises at least one gripper conveyor (150) movable along the transport direction, for gripping one of the individual sheets defining a sheet position in transport direction. The transport system (100) further comprises at least one support conveyor (190) movable along the transport direction for supporting a region of the individual sheet, wherein the support conveyor (190) comprises a vacuum system for supporting the individual sheet on an interacting surface of the support conveyor, the vacuum system comprising a plurality of orifices in the interacting surface. The machine allows for efficient and flexible handling of individual sheets, in particular large format sheets of materials such as corrugated cardboard or other materials that have a certain degree of inherent stability.

The invention relates to a gripping head (15) for insert sheets (11) for inserting between rows of folding boxes (3) in a receptacle (2), characterized in that it comprises: at least one first aspiration element (17a, 17b) designed to grasp an insert sheet (11), at least one second aspiration element (18a, 18b) designed to grasp an insert sheet (11), at least one linear element (19a, 19b) on which at least the first aspiration element (17a, 17b) is mounted and able to slide, a controllable actuating mechanism (20), designed to displace at least the first aspiration element (17a, 17b) by sliding on the at least one linear element (19a, 19b) into a position of grasping in which the at least one first aspiration element (17a, 17b) and the at least one second aspiration element (18a, 18b) are positioned at a spacing from each other in order to grasp an insert sheet (11).