Abstract

An inkjet printing machine on slabs that includes a support for supporting a slab; a locking and centring group configured to contact the slab temporarily locking and centring it on the support; and a printing device provided with at least one inkjet printing head that is mobile with respect to the support along a sliding direction and spaced from it, wherein the printing head is configured to release a decoration on a surface of the slab resting on the support.

IPC Classes  ?

• B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
• B41J 11/04 - Roller platens
• B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form

Abstract

a heating device (22, 25) located in the vicinity of the support (21), at a distance therefrom, and configured to emit a heat flow (F, H) in the direction of a surface (G1) of the glass article (G) supported by the support (21).

IPC Classes  ?

• C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
• B08B 7/00 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass
• C03C 17/00 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
• B65G 13/07 - Roller driving means having endless driving elements
• B08B 11/04 - Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields

Abstract

A kiln (10) for annealing glass slabs, which comprises a plurality of heating chambers (20) that are reciprocally superposed and independent, each heating chamber (20) being provided with: at least an access mouth (24, 25) for passage of at least a glass slab (L), a motorized roller plane (30) on which the glass slab (L) rests and moves, heating means (40) suitable for heating the glass slab (L) located in the heating chamber (20) and cooling means (50) suitable for commanding controlled cooling of the heating chamber (20).

IPC Classes  ?

• C03B 27/00 - Tempering glass products
• C03B 25/08 - Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
• C03B 25/02 - Annealing glass products in a discontinuous way

Abstract

A roller cleaning device, in particular for roller kilns specifically destined for performing heat treatments of glass sheets in which the glass sheets rest directly on the rollers, characterized in that it comprises: a cleaning element (2), predisposed to enter into contact with a surface of at least a roller (100) and to clean the surface; motor means (30,31), predisposed to activate the cleaning element (2) to slide at least along a longitudinal direction (x) of the roller (100).

IPC Classes  ?

• B08B 1/00 - Cleaning by methods involving the use of tools
• B65G 45/10 - Cleaning devices
• C03B 35/16 - Transporting hot glass sheets by roller conveyors
• F27D 25/00 - Devices for removing incrustations
• F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
• F27B 9/30 - Details, accessories or equipment specially adapted for furnaces of these types