An air-cap nozzle 103b for discharging an atomising air jet 101b for atomising paint from a spray gun, the air cap nozzle comprising a tip surface having an atomizing air outlet 100b and a rim region 102b surrounding the outlet. The rim region 102b comprises a continuous serrated portion formed by a plurality of protrusions 104 that protrude axially outward from the rim region 100b of the tip surface. The protrusions 104 are separated by valleys 105 configured to permit entrainment of ambient air by the atomising air jet 101b, the entrained ambient air being drawn through the valleys. The permitted entrainment provides mixing between the entrained ambient air and the atomising air jet 101b.
The present disclosure concerns a paint circulating system suitable for providing paint to applicators in a product finishing facility. The system comprises: a pump for pumping paint around the system; an automatically adjustable back-pressure regulator (BPR) to reduce pressure fluctuations of paint upstream of the BPR; means for indicating a flow rate of paint through a conduit upstream of the BPR; and control means for controlling the BPR to maintain a desired flow rate based on the indicated flow rate.
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
G05D 7/06 - Control of flow characterised by the use of electric means
An air-cap nozzle (103b) for discharging an atomising air jet (101b) for atomising paint from a spray gun, the air cap nozzle comprising a tip surface having an atomizing air outlet (100b) and a rim region (102b) surrounding the outlet. The rim region (102b) comprises a continuous serrated portion formed by a plurality of protrusions (104) that protrude axially outward from the rim region (100b) of the tip surface. The protrusions (104) are separated by valleys (105) configured to permit entrainment of ambient air by the atomising air jet (101b), the entrained ambient air being drawn through the valleys. The permitted entrainment provides mixing between the entrained ambient air and the atomising air jet (101b).
A fluid tip for use with a spray gun. The fluid tip comprises an air cap and a paint nozzle. The air cap comprises an inner surface 206 and the paint nozzle comprises an outer surface 208. The inner and outer surfaces define sides of an air channel 203. The inner and outer surfaces are defined by contours, each contour terminating to form an air channel outlet 207 for discharging an air jet proximal a paint nozzle outlet of the paint nozzle. The contours are configured to provide a velocity profile 400 across the air channel outlet 207 of an air flow 401 through the air channel 203 in which velocities of air radially closer to the paint nozzle outlet are substantially higher than velocities radially further from the paint nozzle outlet.
A method and associated paint finishing system are disclosed for performing predictive maintenance on equipment used for delivering liquid paint in a paint finishing facility. The method comprises: identifying a set of components of the equipment and associated maintenance requirements; for each of the components, providing a set of operating parameters (401-404) that affect useful service life of the component; for each component, providing an algorithm (410) relating the operating parameters to a remaining time by when a maintenance operation on the component is to be performed; monitoring each of the operating parameters (401-404) during operation of the paint finishing facility; for each component, applying the algorithm (410) with the monitored operating parameters (401-404) to calculate the remaining time for the component (420); and for each component providing to a maintenance operative an alert indication relating to the remaining time for the component.
G05B 19/416 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
B05B 12/10 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target responsive to temperature or viscosity of liquid or other fluent material discharged
B05B 15/14 - Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired placesArrangements for handling or replacing damaged parts
The present disclosure concerns a paint circulating system suitable for providing paint to applicators (102a, 103a) in a product finishing facility. The system comprises: a pump (101) for pumping paint around the system; an automatically adjustable back-pressure regulator (BPR) (112, 113) to reduce pressure fluctuations of paint upstream of the BPR; means for indicating a flow rate of paint through a conduit upstream of the BPR; and control means for controlling the BPR to maintain a desired flow rate based on the indicated flow rate.
B05B 12/00 - Arrangements for controlling deliveryArrangements for controlling the spray area
G01F 1/34 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
B05B 15/58 - Arrangements for cleaningArrangements for preventing deposits, drying-out or blockageArrangements for detecting improper discharge caused by the presence of foreign matter preventing deposits, drying-out or blockage by recirculating the fluid to be sprayed from upstream of the discharge opening back to the supplying means
B05B 9/04 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible containerSpraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pump
A method and associated paint finishing system are disclosed for performing predictive maintenance on equipment used for delivering liquid paint in a paint finishing facility. The method comprises: identifying a set of components of the equipment and associated maintenance requirements; for each of the components, providing a set of operating parameters (401-404) that affect useful service life of the component; for each component, providing an algorithm (410) relating the operating parameters to a remaining time by when a maintenance operation on the component is to be performed; monitoring each of the operating parameters (401-404) during operation of the paint finishing facility; for each component, applying the algorithm (410) with the monitored operating parameters (401-404) to calculate the remaining time for the component (420); and for each component providing to a maintenance operative an alert indication relating to the remaining time for the component.
B05B 15/14 - Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired placesArrangements for handling or replacing damaged parts
B05B 5/16 - Arrangements for supplying liquids or other fluent material
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
B05B 12/00 - Arrangements for controlling deliveryArrangements for controlling the spray area
CARLISLE FLUID TECHNOLOGIES UK LIMITED (United Kingdom)
Inventor
Smith, Alan
Wood, Nigel Charles
Abstract
A paint circulating system back pressure regulator comprises a flow passage for paint, at least part of which is disposed between a fixed structure and a moveable surface which is moveable to vary the width of the flow passage so as to regulate a pressure of paint upstream of the regulator. The regulator is also provided with a chamber having an opening for communicating with a supply of a pressurized fluid for controlling operation of the regulator.
F16K 31/365 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a diaphragm
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
E03B 7/07 - Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks
F16K 27/00 - Construction of housingsUse of materials therefor
B05B 7/12 - Spray pistolsApparatus for discharge designed to control volume of flow, e.g. with adjustable passages
CARLISLE FLUID TECHNOLOGIES UK LIMITED (United Kingdom)
Inventor
Rogers, John
Abstract
An air valve for a paint gun includes a closure member configured for fitting in a valve chamber of a paint gun, which valve chamber intersects an air flow chamber of the gun. The closure member having two sealing points which, in use, when the valve is in its closed configuration, seal against an inner surface of the valve chamber at opposing sides of the air flow chamber thereby closing the airflow chamber. The valve further includes a conduit passing through the closure member providing fluid communication between the first and second sealing surfaces, and a biasing element for biasing the closure member into the closed position when no external load is applied.
CARLISLE FLUID TECHNOLOGIES UK LIMITED (United Kingdom)
Inventor
Smith, Alan
Abstract
A pump primarily for liquid paint includes first and second pistons reciprocable rectilinearly in respective first and second cylinders. The first and second pistons are moved relative to their respective pistons by operation of an A. C. electric motor the rotary output shaft of which is coupled to the first and second pistons by a constant velocity cam and a cam follower mechanism converting rotary motion of the output shaft into reciprocatory motion of the first and second pistons 180° out of phase with one another.
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