198results about "Vehicle body drying" patented technology

The invention relates to an installation having a process chamber which comprises an inner space having a receiving region for workpieces. The process chamber has an opening for the supply or discharge of workpieces. The process chamber is constructed so as to have a device for the introduction of gaseous fluid into the inner space, which device has at least one nozzle or aperture for the production of a fluid stream curtain between the opening and the receiving region for workpieces. The process chamber has a device for supplying fresh air, with which device fresh air can be introduced into the receiving region at a side of the fluid stream curtain, which side faces away from the opening.

A vacuum drying apparatus and method to dry and cure paint is disclosed. The method provides a substantially particle free environment that shortens drying time, reduces cost and improves surface finish. The apparatus includes an enclosed drying tunnel that is maintained at a reduced pressure relative to ambient conditions. Heat lamps with the drying tunnel aid in curing and provide the desired particle free environment.

A system for drying vehicle bodies and/or for controlling the temperature thereof. The system includes a cabin and has a heater for heating hot air for the cabin. The system is equipped with a mechanical energy-consuming device, for example, a generator and/or a fan. The heater contains at least one heat exchanger. The hot exhaust gas of a thermal engine can be supplied to the heat exchanger. The thermal engine is coupled to the mechanical energy-consuming device, for example, the generator, so as to move together. Because of the coupled movement, mechanical energy can be transmitted from the thermal engine to the mechanical energy-consuming device.

A radiant convection oven for baking a coating on an article which includes an oven enclosure receiving coating articles, a fan receiving fresh air and directing the fresh air to a burner or burners, a plurality of heat radiators each having an internal chamber receiving heated fresh air from the burner. The radiators are located within the oven opposite a coating article, radiating heat energy to the coated article, and a plurality of nozzles connected to the internal chamber of the radiators directing fresh heated onto the article, transferring convection heat energy to the coated article. In the disclosed embodiment, the radiators include radiating side and bottom walls having a relatively shallow depth, increasing the flow rate through the radiators, reducing the size and cost of the radiators and the fan.

The present invention provides a conveying apparatus for conveying in a predetermined direction loads supported on pallets in a drying furnace or the like. The conveying apparatus comprises a conveying path, a return path, an endless circulating driver and pallet supporting and driving means. The conveying path includes a horizontal inlet path, a horizontal outlet path, and an inclined path connected to at least one of the inner ends of the inlet and outlet path. The circulating driver circulates between the conveying path and return path. The supporting and driving means are mounted at intervals on the circulating driver. The pallet supporting and driving means include a front pallet support for supporting a front portion of the pallet, a rear pallet support for supporting a rear portion of the pallet, and a driving engager for automatically engaging with the pallet near the front pallet support. The pallet includes a front supported part that can be supported by the front pallet support, a rear supported part that can be supported by the rear pallet support movable relative to the pallet in the predetermined direction, and an engaged part for automatically engaging with the driving engager. The pallet conveyed to the inlet path section can be transferred onto one of the supporting and driving means, which conveys the pallet on it along the conveying path to the outlet path section.

The inventive paint dryer, comprises a cabin (12) for housing objects (15) that are to be painted and dried. At least one fresh air supply (8) is provided in order to introduce fresh air into an air circulation system pertaining to the dryer (1) resulting in the circulation of said air. At least one pure gas supply line (7) is provided, wherein thermally cleaned and heated waste air is introduced as a pure gas, thereby maintaining the waste gas circulated in the circulation system at the desired temperature in such a way that objects (15) arranged in the cabin (12) can be dried by radiation and/or convection. The pure gas supply line (7) is surrounded by the fresh air supply line (8) at least along a longitudinal pipe segment and at least in said longitudinal pipe section the pure gas supply pipe (7) is constructed in such a way as to allow for the transmission of heat to fresh air flowing into the fresh air supply (8). The invention also relates to a paint dryer unit comprising several paint dryer modules which are positioned one after the other and configured as paint dryers according to the invention.

An oven for heating a coating on a substrate, such as a painted vehicle body, including a first zone having radiant tubes and shields above the tubes and a second zone including side heat chambers having nozzles directing heated air onto a coated substrate and a hold zone. The radiant tubes may include a first linear portion extending through the oven and return loop beneath the substrate to conserve energy and sill ducts directing heated air against the underside of the vehicle body. The temperature is controlled by sensors contacting the radiant tubes and a proportional integral control system.

One embodiment of the invention provides a spray booth that comprises a spray booth housing having a ceiling and side walls that define an interior for holding an object to be sprayed. A pressurized air plenum is disposed above the ceiling and is adapted to supply air into the interior. A filter media is used to filter air from the plenum before entering into the interior. At least one fan is disposed in the interior below the filter media. The fan is operable to locally increase air flows in the vicinity of the object to increase evaporation rates associated with a spray application on the object, and to enhance air flow over the object during a dry or a cure cycle.

An oven assembly for drying paint on a product transported by a conveyor includes a plurality of modules positioned in a generally abutting relationship. Each of the modules includes a roof, side walls, and a floor having a length and a width. The floor is formed from abutting floor panels reinforced by a plurality of support members spaced along the length of the floor and having a length greater than the width of the floor. The side walls include an inner side wall panel disposed in an overlapping relationship with the floor and a side wall cladding panel supported by the support members along the width of the floor thereby concealing thermal insulating material disposed between the inner side wall panel and the side wall cladding panel.

The current invention discloses a novel spray booth containing a plurality of spacers disposed on the walls or ceiling, and a plurality of fans attached to the spacers. A spacer allows a fan to be disposed at an angle and at a certain distance away from the wall or ceiling, allowing sufficient airflow for spraying or curing an object within the housing. Having fans emit airflow toward both the top and the sides of an object allows optimal coating and heating of the object. A ceiling fan may also be disposed within a plenum in the ceiling of the spray booth.

A fan assembly for an appliance is provided. The fan assembly includes a first plurality of blades and a second plurality of blades. Performance of the appliance can be improved and uniform fan assembly performance over a wide range of pressures can be provided by including the first and second pluralities of blades.

A paint oven including a conveyor conveying painted articles through the oven and a plurality of infrared temperature sensors directed toward and measuring the temperature of predetermined areas of the painted articles, and a control receiving a signal from the infrared temperature sensors and comparing the temperature to a predetermined standard. The disclosed embodiment further includes calibration targets opposite the infrared temperature sensors and independent temperature sensors measuring the temperature of the target for calibration of the infrared temperature sensors. The method of this invention further includes aligning the infrared temperature sensors with a coaxial light source.

A dryer assembly for a vehicle wash system for emitting high velocity air onto a vehicle exterior includes a housing having an air inlet and an outlet. The air inlet is in communication with a motor assembly having an operating and a non-operating mode. The assembly also includes a gate mechanism in communication with the air inlet. The gate mechanism includes a plurality of pedals that are each pivotable between a first position and a second position. The gate mechanism is in communication with a controller, which directs movement of the plurality of pedals from the first position where the plurality of pedals surround the inlet opening such that air can flow into the housing and the second position where each of the plurality of pedals covers a portion of the inlet opening such that in their entirety the plurality of pedals obstruct the inlet opening to prevent air for flowing into the housing.

A process for coating a substrate is provided which includes the following steps:

• • (a) applying a waterborne base coat composition to a surface of the substrate;
  • (b) applying infrared radiation at a power density of 1.5–30.0 kW/m² and a first air stream simultaneously to the base coat composition such that a pre-dried base coat is formed upon the surface of the substrate; and
  • (c) applying a second air stream in the absence of infrared radiation to the base coat composition such that a dried base coat is formed upon the surface of the substrate.

Various embodiments of the invention are disclosed including continuous, batch, and semi-batch processes, which may include additional process steps, such as subsequent application of a topcoat. The process may be used to coat a variety of metal and polymeric substrates, for example, those associated with the body of a motor vehicle.

The present invention relates to a system for projecting a pre-selected flow rate of dry compressed air onto a vehicle to prevent accumulation of excess water. The present invention also relates to a method for utilizing a compressed air vehicle drying system.

In order to provide an easy-to-assemble drier (100) for drying surface-treated workpieces, in particular vehicle bodies (110), which are each disposed on a respective workpiece carrier (109), comprising a drier housing (102) having a drier tunnel (108), through which the workpieces are moved along a conveying direction (112) and which is delimited in a downward direction by a drier floor (116) comprising a plurality of floor elements (118), and a conveying device (138) that conveys the workpieces through the drier tunnel (108), it is proposed that the conveying device (138) comprises a plurality of carrying roller units (140), which are disposed successively in the conveying direction (112) and each comprise at least one carrying roller (142), on which the workpiece carriers (109) rest as they are conveyed through the drier tunnel (108), wherein the carrying roller units (140) are each mountable separately on a respective floor element (118) of the drier floor (116).

The present invention provides a water-based coating and/or coating system that can be used to form sag resistant wet layers or coatings on a wide range of substrates. The coating system is particularly effective for protecting metal-containing substrates, such as intermodal cargo containers, against corrosion. As an overview, the present invention provides water-based compositions suitable to form primer coats on substrates. Desirably, the primer incorporates a high level of one or more CAS agents for excellent sag resistance while drying in a broad range of relative humidity environments. Alternatively, modifications can be made to control temperature and humidity during spray application and drying as a way to increase sag resistance of the coating.

Disclosed is a method and apparatus for drying a coating film (4a) on an exterior panel of a box-shaped workpiece (4), wherein radiant rays, and warm air having a temperature less than a hardening temperature of the coating film (4a), are supplied simultaneously and directly to the coating film (4a). The method and apparatus of the present invention can dry the coating film (4a) on the exterior panel of the workpiece (4) within a relatively short period of time, without causing a negative effect on a surface quality of the coating film (4a).