Abstract: A paint recovery and cleaning trolley is provided for an apparatus for applying paint provided with a belt for conveying pieces to be painted. The conveyor belt has an upper outward section and a lower return section. The trolley includes a paint recovery subunit and a cleaning subunit. Each subunit includes a reverse roller in contact with the lower return section of the conveyor belt, a doctor blade tangentially placed with respect to the reverse roller for all its length, and a doctor blade scraping the lower return section of the conveyor belt. In each subunit the respective reverse roller, doctor blades and return section of the conveyor belt form a closed chamber having the shape of a triangular prism, of which the components represent the rectangular faces and that contains a solvent which drips from the triangular faces into a respective collecting hopper.

Abstract: A vertical oven for panels includes trays configured to support mainly flat panels arranged in a multiple of two stacks circulating in opposed directions, such as the first stack moving in an ascending direction and the second stack in a descending direction. The trays are arranged at a distance from each other and the movement of the trays is such that at least one every other tray is withdrawn from the circulation, doubling the distance between the trays.

Abstract: A system for recovering paint and cleaning in a painting machine having a conveying band for conveying panels to be painted includes a paint recovery unit for paint recovery having a reverse roller in contact with the conveying band, recovering paint sprayed on the conveying band, and a doctor blade scraping the reverse roller to recover paint for successive channelling to a tank; a cleaning unit having a cleaning roller, a drying blade, and an idle roller; a paint recovery unit provided as an independent unit; and a cleaning unit for the conveying band provided as an independent unit.

Abstract: A paint recovery and cleaning trolley for an apparatus for applying paint provided with a belt for conveying pieces to be painted, including: a paint recovery subunit, in its turn including: a reverse roller in contact with the lower return section of said conveying belt, which recovers paint from the belt, a doctor blade tangentially placed with respect to said reverse roller for all its length, to allow the accumulation of a solvent and wetting said reverse roller; a doctor blade scraping the reverse roller so recovering paint; a doctor blade scraping the lower return section of said conveying belt, at least one nozzle for supplying a solvent compatible with the paint in use, a collecting hopper collecting said solvent, placed under said reverse roller, a paint collecting reservoir, a cleaning subunit, in its turn including: a reverse roller in contact with the lower return section of the conveying belt, a doctor blade tangentially placed with respect to said reverse roller for all its length to allow

Abstract: A vertical oven for panels includes trays configured to support mainly flat panels arranged in a multiple of two stacks circulating in opposed directions, such as the first stack moving in an ascending direction and the second stack in a descending direction. The trays are arranged at a distance from each other and the movement of the trays is such that at least one every other tray is withdrawn from the circulation, doubling the distance between the trays.

Abstract: A system for recovering paint and cleaning in a painting machine having a conveying band for conveying panels to be painted includes a paint recovery unit for paint recovery having a reverse roller in contact with the conveying band, recovering paint sprayed on the conveying band, and a doctor blade scraping the reverse roller to recover paint for successive channelling to a tank; a cleaning unit having a cleaning roller, a drying blade, and an idle roller; a paint recovery unit provided as an independent unit; and a cleaning unit for the conveying band provided as an independent unit.

Abstract: The apparatus for supplying a spraying machine with small quantities of liquid product to be sprayed, in particular for processing small batches of articles (M), presents a spray unit (Z) designed in any way so as to support, removably and preferably in an overturned position, at least one container (C1) made of any suitable rigid or deformable pressure-resistant material, with a small capacity, for example able to contain from one to two litres of paint or other product to be sprayed. The spray unit (Z) is provided with quick-release and/or removable connections (3, 103) and a short pipe (4) for connecting the discharge mouth of said container to the spray guns (Z1) and there being envisaged a pressurization pipe (101, 102) which supplies the pressurized fluid and means are envisaged for pressurizing with this pipe the paint situated inside said container (C1), so that said paint is forced out and is supplied with the desired pressure to said spray guns (Z1).

Abstract: Suitable corrugated filter grids (7, 7?) are mounted on the suction intakes (6, 6?) and are positioned with a downward inclination towards the conveyor (4) of the machine, their lower ends allowing drops to fall on to this conveyor. The suction intakes contain further removable filters (9, 9?) and the lower ends of the said intakes are connected to a horizontal collector (10) which is positioned transversely under the conveyor of the machine and whose lower walls are inclined and converge towards a lower area in which is provided a tank (11) which collects all the paint precipitated by the filters located in the suction intakes and which is attached to the inner walls of the system by contact and by impact.

Abstract: Suitable corrugated filter grids (7, 7′) are mounted on the suction intakes (6, 6′) and are positioned with a downward inclination towards the conveyor (4) of the machine, their lower ends allowing drops to fall on to this conveyor. The suction intakes contain further removable filters (9, 9′) and the lower ends of the said intakes are connected to a horizontal collector (10) which is positioned transversely under the conveyor of the machine and whose lower walls are inclined and converge towards a lower area in which is provided a tank (11) which collects all the paint precipitated by the filters located in the suction intakes and which is attached to the inner walls of the system by contact and by impact.

Abstract: Trays are provided with identical vertical spacers which enable the trays to be stacked on top of each other in a centered way, with a suitable or appropriate spacing between them, and enable the various adjacent stacks of trays to be raised and lowered in steps, by an elevating and lowering system which acts only on the bottom tray of each stack. The sides of the stacks of trays of the kiln are thus free and can be engaged by conveyors for the translation of the trays between the stacks, both in a normal operating cycle and in a short operating cycle. However, the lower translation conveyors, which transfer the trays from the stack with an unloading station to that with a loading station, are positioned in the conventional way, i.e., under the stacks of trays and transversely with respect to the trays.

Abstract: The trays (V) are provided with identical vertical spacers (4) which enable the trays to be stacked on top of each other in a centred way, with a suitable spacing betweem them, and enable the various adjacent stacks of trays to be raised and lowered in steps, by means (BM) which act only on the bottom tray of each stack. The sides of the stacks of trays of the kiln are thus free and can be engaged by conveyors (37-37′, 77-77′, 57-57′) of the means provided for the translation of the trays between the stacks, both in the normal operating cycle and in the short operating cycle. However, the lower translation conveyors (24-24′) which transfer the trays from the stack with the unloading station (K2) to that with the loading station (K1) are positioned in the usual way under the stacks of trays and transversely with respect to the trays.

Abstract: The vessel or vessels (7, 7′, 7″) in contact with the solvent used for cleaning the conveyor (T) are designed and arranged in such a way that they are enclosed, and the portion of conveyor belt which is wetted with solvent is also isolated by suitable means from contact with the external environment containing the ventilation air of the painting chamber. In a preferred solution, where rotating scraping cylinders (1, 5) are used, the solvent vessel (7, 7′, 7″) is placed in such a way that it is enclosed by the two successive cleaning cylinders, by the portion of conveyor belt which runs between these cylinders, and by its lateral walls which are as close as possible to the said cylinders and to the said portion of the conveyor belt. At the end of each painting cycle, clean solvent is made to flow into the solvent vessel and the cleaning cylinders and the conveyor belt of the painting machine are temporarily kept active so that they clean themselves.

Abstract: At the interior of a working booth (1) of a painting machine with a robotized head (13), on the same guide (5) for the longitudinal and vertical movements of the said head, there is mounted a second ancillary painting head (19) similar to the one robotized, but constructively simplified in order to perform only oscillation movements for works of simple type. The ancillary spraying head is fixed at one extremity of the booth when the machine has to operate with the robotized head (13) upon panels stationary inside the same booth. Otherwise, when it has to operate upon travelling panels, the ancillary head (19) is moved to an intermediate and pre-established point of the same booth, while the robotized head (13) is placed and stopped at a distance from the ancillary head variable and correlated to the speed of travel of the panels and to the oscillating speed transversely to the same panels of both the heads, the guns of which are now actuated for performing works of simple painting.

Abstract: The vessel or vessels (7, 7′, 7″) in contact with the solvent used for cleaning the conveyor (T) are designed and arranged in such a way that they are enclosed, and the portion of conveyor belt which is wetted with solvent is also isolated by suitable means from contact with the external environment containing the ventilation air of the painting chamber. In a preferred solution, where rotating scraping cylinders (1, 5) are used, the solvent vessel (7, 7′, 7″) is placed in such a way that it is enclosed by the two successive cleaning cylinders, by the portion of conveyor belt which runs between these cylinders, and by its lateral walls which are as close as possible to the said cylinders and to the said portion of the conveyor belt. At the end of each painting cycle, clean solvent is made to flow into the solvent vessel and the cleaning cylinders and the conveyor belt of the painting machine are temporarily kept active so that they clean themselves.