A feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is connectable in fluid communication with a fluidizing pressure source. The extraction duct is connectable in fluid communication with at least one suction source. The control valve connects the extraction duct with an extraction port of the hopper. The control valve is operable between a first position for applying suction from the at least one suction source to the hopper, and a second position providing an exterior opening in at least one of the control valve and the first extraction duct for exhausting pressurized fluid from the hopper and/or collecting at least some of the air and powder that is exhausted from the powder.

The present application discloses an intelligent flexible hub powder spraying line and process. The intelligent flexible hub powder spraying line comprises a control system, a wheel type recognition system, a brace recognition system, a conveying chain, off-line carrying robots, a powder spraying isolation area, an oven, an on-line area, an off-line area and accessory equipment, wherein the conveying chain comprises a chain, braces and a driving mechanism. By applying a plurality of powder spraying units and the recognition systems, multiple kinds of powder can be simultaneously sprayed with different parameters.

The present application discloses an intelligent flexible hub powder spraying line and process. The intelligent flexible hub powder spraying line comprises a control system, a wheel type recognition system, a brace recognition system, a conveying chain, off-line carrying robots, a powder spraying isolation area, an oven, an on-line area, an off-line area and accessory equipment, wherein the conveying chain comprises a chain, braces and a driving mechanism. By applying a plurality of powder spraying units and the recognition systems, multiple kinds of powder can be simultaneously sprayed with different parameters.

A paint spraying apparatus includes a supporting structure, a lower nozzle unit, and an upper nozzle unit. The lower nozzle unit includes lower flexible tubes and nozzles, and ejects powder paint toward an eye portion on a lower side of a stabilizer. The upper nozzle unit includes a first frame and a second frame. First flexible tubes are arranged on the first frame. Second flexible tubes are arranged on the second frame. The upper nozzles eject the powder paint toward an eye portion on an upper side of the stabilizer.

A distribution unit (U) for distribution carbonaceous particulate material, in particular powdered rubber or equivalent material to be applied on the peripheral surfaces (F) of a tire (P), comprises nozzle diffuser (2) for spreading said particulate material and pneumatic supply (1,3,5,7) for feeding said particulate material to said nozzle diffuser (2).

A feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is connectable in fluid communication with a fluidizing pressure source. The extraction duct is connectable in fluid communication with at least one suction source. The control valve connects the extraction duct with an extraction port of the hopper. The control valve is operable between a first position for applying suction from the at least one suction source to the hopper, and a second position providing an exterior opening in at least one of the control valve and the first extraction duct for exhausting pressurized fluid from the hopper and/or collecting at least some of the air and powder that is exhausted from the powder.

The invention relates to a powder supplying device for a powder coating installation with at least one powder container, which has a powder chamber for coating powder, and with at least one powder injector, which is connected or can be connected to a powder discharge channel opening out via a powder discharge opening in the powder chamber, in order to suck coating powder out of the powder chamber in the powder coating operation of the powder coating installation with the aid of conveying compressed air fed by the powder injector. In order to make it possible for the powder to be changed quickly in an easy manner, it is provided according to the invention that the powder discharge channel has a reduced length of at most 300 mm, preferably a length of 160 mm to 240 mm and more preferably a length of 200 mm.

The invention relates to a screen insert (70) for a powder container (24) of a powder supplying device, the screen insert (70) having a screen unit (71) for screening coating powder and an ultrasonic transducer (72) for generating ultrasonic vibrations. The screen unit (71) is connected to the ultrasonic transducer (72) in such a way that the ultrasonic vibrations generated by the ultrasonic transducer (72) can be transferred to the screen unit (71). To allow a particularly compact construction of the screen insert (70) to be achieved, according to the invention a screen carrier (73) which can be placed onto the powder container (24) is provided, for holding the ultrasonic transducer (72), with the screen unit (71) connected thereto, in such a way that the screen unit (71) is arranged below the screen carrier (73), so that the screen unit (71) is inside a powder chamber (22), formed by the powder container (24), when the screen carrier (73) has been placed onto the powder container (24).

A distribution unit (U) for distribution carbonaceous particulate material, in particular powdered rubber or equivalent material to be applied on the peripheral surfaces (F) of a tire (P), comprises nozzle spreading means (2) for spreading said particulate material and pneumatic supply means (1,3,5,7) for feeding said particulate material to said spreading means (2).

An exemplary embodiment of the present invention provides an electrostatic metal porous body forming apparatus including: a transfer module transferring a porous body substrate; and a coating module coating a metal powder on the porous body substrate, wherein the transfer module includes a substrate supporter fixing the porous body substrate while the porous body substrate is transferred, and wherein the coating module includes: an electrifier including a first electrode electrifying the metal powder, a second electrode facing the first electrode, a first power supplier connected with the first electrode supplying electricity to the first electrode, and a second power supplier connected with the second electrode supplying electricity electrified with an opposite charge to a charge caused by the electrification of the first electrode to the second electrode, and generating a pulse type of voltage; and a metal powder supplier including a metal powder vessel storing the metal powder therein and supplying the metal powder to the outside, and an outlet separately disposed above or below the porous body substrate injecting the metal powder, and transferring or injecting the metal powder that is electrified and coated by the electrifier.