A separation device (1) intended to separate a profiled element (2) from a conveying surface (3) which conveys the profiled element (2) in a longitudinal direction (L0) comprises a detachment roller (10) which is mounted so as to be able to rotate on a support (11) about a detachment axis (X10), and which is intended to be interposed, in an engagement configuration (C1), between the profiled element (2) and the conveying surface (3) to cause the profiled element (2) to become detached from the conveying surface (3).

A suction or blow thermal roller includes: a cylindrical body extending along a longitudinal direction; the cylindrical body including at least one inner tubular element and at least one outer tubular element that is concentrically arranged around the inner tubular element; the inner tubular element includes an outer diameter d and the outer tubular element includes an inner diameter D, being D>d; two hubs, each arranged at one end of the cylindrical body; at least one heat-exchange chamber realized between the inner tubular element and the outer tubular element. The roller includes a coating layer for the inner tubular element. The coating layer includes at least one rib arranged along a helical path around the longitudinal direction. The at least one rib is made in one piece in the coating layer, realizing at least one helical channel between the coating layer and the outer tubular element.

A multi-sheet cooling buffer suitable for use in a printing device and a method of sheet processing with the cooling buffer are described. The cooling buffer includes an inlet and an outlet and a sheet cooling mechanism. An array of cooling stations, intermediate the inlet and the outlet, are each configured to receive print media sheets independently from the inlet and direct cooled sheets towards the outlet. In the cooling buffer, multiple print media sheets are able to be cooled contemporaneously in respective ones of the cooling stations.

A multi-sheet cooling buffer suitable for use in a printing device and a method of sheet processing with the cooling buffer are described. The cooling buffer includes an inlet and an outlet and a sheet cooling mechanism. An array of cooling stations, intermediate the inlet and the outlet, are each configured to receive print media sheets independently from the inlet and direct cooled sheets towards the outlet. In the cooling buffer, multiple print media sheets are able to be cooled contemporaneously in respective ones of the cooling stations.

A vacuum coating device for a flexible substrate is provided, including a vacuum coating chamber and a transition chamber which are connected to each other. The vacuum coating chamber and the transition chamber communicate with each other through a slit. The vacuum coating device further includes a cooling roller, which is fixed in the transition chamber through a tension adjusting component. The cooling roller includes a roller body and a shaft, the roller body is fixedly installed on the shaft, and the roller body and the shaft are coaxial. Multiple heat dissipation passages are provided in the roller body along an axial direction of the roller body. Good cooling function is achieved and the flexible substrate is prevented from generating winkles.

A thermal roller (1) includes: a cylindrical body (2) extending along a longitudinal direction (X-X), the cylindrical body (2) including at least one inner tubular element (3) and at least one outer tubular element (4) that is concentrically arranged around the inner tubular element (3), the inner tubular element (3) includes an outer diameter d and the outer tubular element 4 includes an inner diameter D, being D>d; two hubs (6), each arranged at one end of the cylindrical body (2); at least one heat-exchange chamber (10) realized between the inner tubular element (3) and the outer tubular element (4). The roller includes: a coating layer (11) for the inner tubular element (3) made of plastics, and at least one helical channel (13) between the coating layer (11) and the outer tubular element (4). The helical channel (13) is realized at least partially in the coating layer (11).

An imaging system includes a substrate cooler that reduces the temperature of substrates bearing dried ink images. The substrate cooler has a plurality of rollers, at least one actuator operatively connected to the plurality of rollers, and a controller operatively connected to the least one actuator. The controller is configured to operate the at least one actuator to move the rollers relative to one another to vary the length of the path along which the substrates move through the substrate cooler.

It is aimed to provide a composite sheet manufacturing device and a composite sheet manufacturing method capable of maintaining high cutting performance of a cutter by suppressing the adhesion of an adhesive of an adhesive surface to the cutter. A first sheet (42) introduced to between a cutter roller (2) and an anvil roller (3) is cut into strips (42a) while these rollers (2, 3) are rotated relative to each other, adhesive surfaces (a) of the strips (42a) are adhered onto a second sheet (43) for compounding, and at least one of a cutter (12) of the cutter roller (2) and the anvil roller (3) is cooled by a refrigerant by a cooling unit (20, 21).

An imaging system includes a substrate cooler that reduces the temperature of substrates bearing dried ink images. The substrate cooler has a plurality of rollers, at least one actuator operatively connected to the plurality of rollers, and a controller operatively connected to the least one actuator. The controller is configured to operate the at least one actuator to move the rollers relative to one another to vary the length of the path along which the substrates move through the substrate cooler.

A suction or blow thermal roller includes: a cylindrical body extending along a longitudinal direction; the cylindrical body including at least one inner tubular element and at least one outer tubular element that is concentrically arranged around the inner tubular element; the inner tubular element includes an outer diameter d and the outer tubular element includes an inner diameter D, being D>d; two hubs, each arranged at one end of the cylindrical body; at least one heat-exchange chamber realized between the inner tubular element and the outer tubular element. The roller includes a coating layer for the inner tubular element. The coating layer includes at least one rib arranged along a helical path around the longitudinal direction. The at least one rib is made in one piece in the coating layer, realizing at least one helical channel between the coating layer and the outer tubular element.