Abstract: In a method for removing solids from overspray produced when painting objects, the overspray is absorbed by an air flow and is conducted to a deposition surface, across which a deposition liquid flows and where a large part of at least the solids is transferred into the deposition liquid, is discharged by said deposition liquid, and is removed from the liquid by means of a deposition process. A deposition liquid is used and disclosed which comprises a detackifying medium and an optional suspending fluid, paint overspray particles being detackified using the detackifying medium.

Abstract: A system for painting objects, in particular vehicle bodies or add-on parts, comprising a spray booth in which a paint can be applied to the objects. A fluid flow, which receives overspray and possibly solvent arising during the painting process, passes through the spray booth from the top down. A recovery system for recovering the overspray and possibly the solvent comprises at least one substantially vertical pipe, through which the fluid led out of the spray booth and laden with overspray and possibly solvent can flow and the surface of which is provided with elevations and/or recesses in such a way that eddies form in the fluid flowing through the pipe and the paint overspray is deposited onto the circumferential wall and flows downward out of the pipe.

Abstract: An overhead conveyor system for transporting articles, especially for transporting vehicle bodies, in a surface treatment line comprises at least one transport carriage which has a fastening device to which at least one article can be fastened. The transport carriage can be displaced along a track carrying it by at least one drive means. The fastening device is received so that it can be rotated about a vertical axis of rotation. The invention further relates to a dip coating line comprising at least one dip-coating tank which can be filled with a treatment liquid, into which tank articles to be treated can be dipped. The dip coating line comprises a conveying system which displaces the articles to be treated towards the dip-coating tank, into the interior of the dip-coating tank, out of the dip-coating tank and away therefrom.

Abstract: An electrical field is generated between an application device and an object to be coated. At least one corona electrode associated with the application device is connected to ground, and at least one counter electrode associated with the object is connected at least at intervals to a positive potential. A system for electrostatically coating objects having an application device coating material, and an electrical field device having a high-voltage source which generates an electrical field between the application device and an object to be coated. The field device comprises at least one corona electrode associated with the application device, and at least one counter electrode associated with the object, wherein, during the operation of the device, the at least one corona electrode is connected to ground, and the at least one counter electrode is connected at least at intervals to a positive potential.

Abstract: A dip coating system in which objects to be treated are transported by means of at least one conveyor carriage to the dipping tanks which can be filled with a treatment liquid, are dipped therein, and then withdrawn and can be conveyed away from the dipping tanks. Said conveyor carriage can be guided along a rail and comprises a drive carriage, and a securing device to which at least one object can be secured and which can be rotated about a rotational axis. A connection device joins the drive carriage to the securing device. An end of the rotational axis can be mounted on the connection device such that the rotational axis can be displaced in the vertical direction freely overhanging together with the connection device. Said connection device comprises a drive device which can rotate the rotational axis. Said rotational axis and drive device are joined by a planetary gearing.

Abstract: A conveyor unit which can be displaced for conveying vehicle bodies and which includes a bogie assembly and a coupling device which is connected to the bogie assembly and which is configured such that it interacts with the base areas of the vehicle body which are upwardly orientated to the roof. Also a conveyor system having at least one conveyor unit of such type and a plant for machining vehicle bodies. Vehicle bodies are conveyed by a conveyor system between and/or in machining stations, said plant also including such a conveyor system.

Abstract: An oxidation furnace for the oxidative treatment of fibers having a processing chamber which can be found in the interior of a housing; at least one blowing device; at least one suction device; at least one ventilator that circulates the hot air through the blowing device, the processing chamber, and the suction device; and at least one heating device that lies in the flow path of the hot circulated air. Deviating rollers guide the fibers in a serpentine manner through the processing chamber such that the fibers lie next to one another as a carpet, the fiber carpet being stretched between each opposing deviating roller over one plane. The air in the processing chamber crosses the planes over which the fiber carpet is stretched at an angle that differs from 0° and 90° using special means.

Abstract: A self-propelling drive unit with a chassis and a coupling device by means of which a skid can be coupled detachably to the chassis, a drive system for driving a skid and a conveyor installation, in which a drive unit is provided inside a conveying area.

Abstract: A painting system operating in recirculating air mode, comprising a spray booth (1) which has from the top downwards an air plenum (2), a painting zone (3) and a wash-out (4). The recirculating air flowing through the painting zone (3) picks up overspray particles which are largely removed again from the recirculating air in the wash-out (4) with the aid of a stream of water. The recirculating air passes through a conditioning unit (21) before said air is returned to the air plenum (2) of the painting booth (1). The conditioning unit (21) comprises at least one capacitor (29) and/or a droplet separator (30), with the aid of which a liquid can be recovered from the recirculated air. Said liquid is fed to a supply source (24, 25) for flushing liquid. The flushing liquid is used for cleaning the application equipment in the painting zone (3).

Abstract: A conveyor system for transporting articles, comprising a rail system that comprises a plurality of track sections and at least one switch point, by which, via a switch point drive, a first track section can be connected to a second track section or to a third track section of the rail system. At least one drivable transport trolley can be driven along a path of movement on the rail system. A communications system with comprises at least one communications line that extends along the path of movement of the at least one transport trolley. A trolley communications unit disposed on the at least one transport trolley interacts with the communications line. The switch point drive can be controlled by means of a switch point control system, which is connected to the at least one communications line.

Abstract: A self-propelling drive unit with a chassis and a coupling device by means of which a skid can be coupled detachably to the chassis, a drive system for driving a skid and a conveyor installation, in which a drive unit is provided inside a conveying area.

Abstract: A rail system for an electric pallet track has, in known manner, a main line which can be optionally connected to at least two branch lines by way of points. The points have as many movable rail portions for each rail of the main line as there are branch lines. These movable rail portions can each be pivoted about a stationary pivot axis which is located outside the longitudinal extent of the corresponding movable rail portion.

Abstract: A skid for supporting at least one object which is conveyable in a conveying direction inside a conveyor installation comprises at least two support runners disposed parallel to one another. Running means different from the support runners are fastened to the skid. In addition, a transfer station for transferring an above-mentioned skid from conveying means to a guide structure is specified. Also specified are a self-propelling drive unit with a chassis and a coupling device by means of which a skid can be coupled detachably to the chassis, a drive system for driving a skid and a conveyor installation, in which a drive unit is provided inside a conveying area.

Abstract: A thermal postcombustion device includes, in a conventional manner per se, a housing, having an inlet for the exhaust air that is to be purified and an outlet for clean air. A combustion chamber is located inside the housing, and inside this combustion chamber, a heating device generates a temperature at which the pollutants carried by the exhaust air burn. In order to reduce the energy requirement, a heat exchanger is provided over which the exhaust air coming from the inlet is guided to the combustion chamber, and the clean air coming from the combustion chamber is guided to the outlet. In order to also be able to process exhaust air, which is loaded with adherent residues, for example, pitch vapors, a device is provided with which, during a purification mode, at least a portion of the clean air can be optionally fed past a section of the heat exchanger located closer to the combustion chamber and into another section of the heat exchanger located further from the combustion chamber.

Abstract: The invention relates to a hot-air furnace module having a furnace space, which is at least partially delimited by walls and is assigned an air-delivery device for producing an airstream and a heat-transfer device for heating the airstream. According to the invention, an incoming-air channel is provided, which is formed between the air-feed device and the furnace space for guiding the airstream delivered by the air-feed device and which is provided with first and second throttle means, which are arranged at a distance from one another in the direction of flow and are intended to even out the airstream before it flows through the furnace space. Furthermore, according to the invention a hot-air furnace is formed from hot-air furnace modules which are rotated through 180 degrees with respect to one another and are in communication with one another.

Abstract: Disclosed is a device for cleaning wheel rims. Said device is used for removing sticky excess powdered pigments from the flange and hub of the rims prior to the baking process during powder coating. The inventive device comprises a first brush which can be introduced into the hub of a rim that is to be cleaned as well as a second brush which is concentrically disposed around the first brush and rests against the flange surface of the rim when the first brush is inserted in the hub of the rim. The first brush can be axially displaced relative to the second brush and is spring-mounted on the second brush. Furthermore, a drive unit is provided which rotates the first and the second brush by a specific angle, respectively.

Abstract: A nozzle arrangement for applying coating material in cavities of objects, in particular of vehicle bodies, comprises a nozzle element, which can be connected to a material source and comprises a first discharge opening and at least one further discharge opening, by way of which coating material can be discharged. With a directing device, the flow path of the coating material from the material source can be set in such a way that the flow path leads optionally to the first discharge opening and/or to the at least one further discharge opening.

Abstract: A system for treating objects transported by at least one transport carriage and immersed into at least one treatment container, in which a treatment medium can be applied. The transport carriage comprises at least one swivel arm connected to the chassis in an articulated manner, on which swivel arm the object can be fastened. A hydraulically operating piston-cylinder unit having a first working chamber is provided to drive the swivel arm and provide weight balancing. The first working chamber is made smaller during the downward motion of the swivel arm and is connected to a first pressure accumulator. The second working chamber of the piston-cylinder unit, made larger during the downward motion of the swivel arm, is connected to a source for pressurized hydraulic fluid and can be drained during the downward motion of the swivel arm. The pressure of the fluid in the accumulator is swivels the swivel arm and object upward if the pressure in the second working chamber is sufficiently low.

Abstract: A method for the electrophoretic coating of workpieces with a coating medium, in particular lacquer, and a coating installation are described. In the method, at least one workpiece is immersed in the coating medium. With a voltage source, a d.c. voltage is applied between the workpiece and at least one electrode immersed in the coating medium. The d.c. voltage is increased continuously, in an essentially stepless manner, throughout virtually the entire coating operation in such a way that the coating current density on the surface of the workpiece remains essentially constant over time.

Abstract: A large-capacity booth for the treatment, in particular for the spraying and/or drying, of workpieces, in particular motor vehicles, rail vehicles, aircraft or watercraft, having at least two opposite booth walls and one booth ceiling is described. The booth walls each have at least two vertical supports composed of open sectional elements, which are connected to one another via wall elements. The booth ceiling has at least two lattice beams extending in a planar manner in the vertical direction and composed essentially of open sectional elements. The lattice beams connect mutually opposite supports of the booth walls in such a way that the booth walls and the booth ceiling stabilize one another.