Equipment equipped with an atomizer and related methods

Abstract

To provide an installation including an atomizer and an associated method.SOLUTION: An installation includes an atomizer (20) configured to atomize a fluid (F), a robot (15) and a first station (35), the robot (15) being configured to move the atomizer (20) in a predetermined reference frame between at least a first position and a second position, the atomizer (20) being configured to atomize the fluid (F) when the atomizer (20) is in the first position, a distance being defined between the atomizer (20) and the first station (35), the distance when the atomizer (20) is in the second position being strictly less than the distance when the atomizer (20) is in the first position. The first station (35) includes at least one sensor configured to measure at least one value of a parameter of the atomizer (20) when the atomizer (20) is in the second position.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to equipment equipped with an atomizer. Further, the present invention relates to a method for measuring the value of at least one parameter of such an atomizer.

Background Art

[0002] Many fluid atomization facilities are equipped with an atomizer, at least a part of which is designed to be at a high potential during atomization. Therefore, since the fluid droplets are charged at the atomizer and tend to follow the electric field lines between the atomizer and the part coated with the fluid, the potential difference between the part coated with the fluid and the atomizer tends to act favorably on the discharge of the fluid droplets discharged to that part. As a result, the amount of fluid that does not reach the said part decreases, and the efficiency of the atomizer increases.

[0003] However, in order to prevent potentially dangerous arc generation, the high potential to which the head of the atomizer is exposed requires electrical insulation between the head of the atomizer and other parts of the atomizer equipment. As a result, the atomizer has minimal necessary components, and the electrical connection between the head of the atomizer and the robot to which the atomizer is attached is arranged to insulate the head of the atomizer from the rest of the equipment while a potential difference is applied between these elements. When the atomizer is not in operation, the potential is returned to ground so that the atomizer can be moved closer to other parts of the equipment or operated manually without risk.

[0004] However, the atomizer itself is a complex device with many moving parts, such as a bowl rotated at high speed by a turbine, valves that start and stop the supply of the fluid to be atomized into the bowl, and a skirt that generates a precisely controlled air ejection to optimally form the fluid ejection. All of these elements must work together to provide highly efficient fluid discharge, and if any one of these elements is damaged, the discharge efficiency will rapidly decrease. In addition, even if the components that make up the atomizer are not damaged, there are many external factors that can affect the efficiency of the atomizer and / or the quality of the resulting parts.

[0005] Generally, and especially due to high-potential operation, it is difficult to evaluate the performance of an atomizer while it is in operation. As a result, atomizer maintenance becomes difficult, particularly because small defects or damage are not easily detected, making it impossible to intervene early before the negative consequences of these defects become serious. Consequently, it becomes necessary to plan for frequent, regular maintenance, which limits the effectiveness of the atomizer. Even without this, when undetected defects in the atomizer result in defects in products used in the manufacturing process where the fluid is used, the average quality of products used in the manufacturing process declines.

[0006] Furthermore, even atomizers, whose potential does not change during operation, tend to be subject to similar limitations because they are complex and often difficult to monitor.

[0007] Therefore, there is a demand for fluid atomizers with higher efficiency. [Overview of the project]

[0008] For this purpose, an apparatus has been proposed comprising an atomizer configured to atomize a fluid, a robot and a first station, wherein the robot is configured to move the atomizer between at least a first position and a second position in a given reference frame, the atomizer is configured to atomize a fluid when the atomizer is in the first position, a distance is defined between the atomizer and the first station, the distance when the atomizer is in the second position is strictly less than the distance when the atomizer is in the first position, and the first station comprises at least one sensor configured to measure at least one value of an atomizer parameter when the atomizer is in the second position.

[0009] The present invention makes it possible to periodically monitor the condition of the atomizer during operation simply by moving the atomizer to its second position. As a result, atomizer malfunctions (or “failures”), including minor malfunctions that are difficult to detect by other means, become easier to detect. Consequently, the requirements for periodic atomizer maintenance are limited, atomizer effectiveness is improved, and at the same time, a better average atomizer quality than is possible with current-level atomizers is provided.

[0010] According to a particular embodiment, the atomizer has the following properties: The first station has a ring that defines an opening surrounded by the ring, and the atomizer is at least partially housed in the opening when the atomizer is in the second position; The ring has an inner wall that defines an opening, and at least one sensor is attached to the inner wall; The atomizer is in contact with the first station when it is in the second position; The atomizer is equipped with a skirt intended to generate an airflow that follows the atomized fluid, and the skirt is in contact with the first station when the atomizer is in the second position; The atomizer comprises a turbine, a fluid injector, and a bowl intended to atomize the fluid when the fluid is injected into the bowl by the injector, and the equipment comprises a control module configured to control the rotation of the bowl when the atomizer is in a second position; At least one sensor must be a microphone; At least one sensor is an accelerometer configured to measure the acceleration value of the first station when the atomizer is in a second position, and that the atomizer is in contact with the first station when the atomizer is in the second position; The equipment includes a control module configured to detect defects in the atomizer, particularly imbalances in the bowl, based on values ​​measured by sensors during the rotation of the bowl; The atomizer further comprises at least one valve having a needle that can move between two positions, and at least one sensor in the first station is configured to measure the position of the valve needle; The equipment includes a control module configured to calculate the time it takes for the needle to move between two positions based on the measured needle position values; The first station is further configured to clean the atomizer with a liquid, such as a solvent, when the atomizer is in the second position; The equipment has a second station separate from the first station, and a robot is further configured to move the atomizer from one of the first and second positions to a third position, and the second station is configured to clean the atomizer with a liquid, for example, a solvent, when the atomizer is in the third position; The first station is fixed to a predetermined reference system; At least one sensor must be configured to measure the temperature value of the atomizer; At least one of the sensors is configured to measure the potential value of the atomizer. It has one or more of these and is used alone or in any technically possible combination.

[0011] A method has been further proposed to measure at least one parameter of an atomizer configured to atomize a fluid, the method being carried out by an apparatus comprising an atomizer, a robot and a first station, the method is The process of atomizing a fluid from an atomizer located in the first position; and A robotic process of moving an atomizer between a first position and a second position, wherein a certain distance is defined between the atomizer and the first station, and the distance when the atomizer is at the second position is strictly less than the distance when the atomizer is at the first position. Includes.

[0012] The first station is equipped with at least one sensor, and the method includes the step of measuring the value of at least one parameter of the atomizer by the sensor when the atomizer is in a second position.

[0013] According to a particular embodiment, the method has the following characteristics: During the measurement process, the potential of the atomizer is changed from a first value to a second value that is strictly higher than the first value, and during the measurement process, at least one sensor measures the second value of the potential; The atomizer comprises a bowl and a turbine configured to rotate the bowl, and the measurement step includes the rotation of the bowl and the detection of defects in the bowl from values ​​measured by at least one sensor during the rotation of the bowl; The measurement process includes acquiring noise emitted by the bowl during its rotation and detecting defects from the acquired sound; The atomizer is in contact with a first station during a measurement process, and the measurement process includes measuring the value of at least one acceleration of the first station during the rotation of the bowl, and detecting a defect from the measured value of at least one acceleration. It includes one or more of these, and is used alone or in any technically possible combination.

[0014] The features and advantages of the present invention will become apparent by reading the following description, which is given merely as a non-limiting example and with reference to the accompanying drawings.

Brief Description of the Drawings

[0015] [Figure 1] FIG. 1 is a schematic diagram of a first example of a fluid dispensing facility according to the present invention, which includes an atomizer. [Figure 2] FIG. 1 is a schematic diagram of an exemplary atomizer of FIG. 1, which includes a measurement module. [Figure 3] FIG. 2 is a schematic diagram of an example of the measurement module of FIG. 2. [Figure 4] FIG. 1 is a flowchart of the steps of a method implemented by the facility of FIG. 1. [Figure 5] FIG. 3 is a frequency spectrum of noise acquired by a microphone in the measurement module of FIG. 3, corresponding to a non-defective atomizer. [Figure 6] FIG. 3 is a frequency spectrum of noise acquired by a microphone in the measurement module of FIG. 3, corresponding to a defective atomizer. [Figure 7] FIG. 7 is a schematic diagram of a second example of a fluid dispensing facility according to the present invention. [Figure 8] FIG. 7 is a flowchart of the steps in a method implemented by the facility of FIG. 7.

Best Mode for Carrying Out the Invention

[0016] A first example of a facility 10 for dispensing a fluid is partially shown in FIG. 1.

[0017] The facility 10 includes a robot 15, an atomizer 20, a control module 25 of the robot 15, and optionally a first station 35.

[0018] The facility 10 is configured to atomize a first fluid F.

[0019] In particular, the first fluid F is a coating product, such as a paint or varnish. For example, the first fluid F is a paint or varnish intended to at least partially cover a panel P of a vehicle body.

[0020] The robot 15 supports the atomizer 20. In particular, the robot 15 is configured to move the atomizer 20 in space, and to orient the atomizer 20 in multiple directions in space.

[0021] In particular, the robot 15 is configured to move the atomizer 20 between an operating position and a resting position, sometimes also called a cleaning position, within a predetermined reference system.

[0022] The reference frame is a reference frame fixed to the position of the equipment 10. For example, the reference frame is the Earth reference frame.

[0023] In particular, the robot 15 is configured to move the atomizer 20 between an operating position and a resting position relative to the base 37 of the robot 15.

[0024] The distance between the atomizer 20 and the first station 35 when the atomizer 20 is in the operating position is strictly greater than the distance between the atomizer 20 and the first station 35 when the atomizer 20 is in the idle position.

[0025] For example, the robot 15 is an articulated arm having actuators that rotate the individual segments of the arm 15 relative to each other to move and orient the atomizer 20 in space.

[0026] In addition, the robot 15 is designed to supply voltage or current, at least a second fluid, such as a gas or solvent, and a flow of the first fluid F to be atomized to the atomizer 20.

[0027] Instead, the atomizer 20 has a reserve of the first fluid F, and therefore does not require the robot 15 to supply the fluid F.

[0028] For example, gas G is air.

[0029] The robot 15 is configured to move the atomizer 20 in space and / or orient the atomizer 20 in multiple directions in space, based on control messages received from the control module 25. In addition, the robot 15 is configured to supply voltage or current, and / or a first fluid or a first and second fluid, to the atomizer 20, based on corresponding control messages.

[0030] The atomizer 20 comprises a base 40 and an atomizer head 45 in a manner that is known in itself. The atomizer 20 further comprises a measuring module 30.

[0031] According to one embodiment, the atomizer 20 includes a fluid reservoir F in a manner known in itself, for example, the reservoir being incorporated into the head 45 or base 40 of the atomizer.

[0032] The base 40 has a first surface that is connected to the robot 15 and a second surface, also called the connecting surface, to which the atomizer head 45 is attached.

[0033] The base 40 has at least one duct passing through it that can supply a fluid, for example, the fluid F to be atomized, to the atomizer head 45. For example, the base 40 is passed from a first surface to a connecting surface by a plurality of ducts leading to a connecting surface.

[0034] At least one duct is configured to supply a fluid F to be atomized to the atomizer head 45. At least one other duct is configured to supply a gas G to the atomizer 45. Optionally, at least one duct is configured to supply a liquid, such as a solvent, to the atomizer 45.

[0035] In a manner that is known in itself, for example, the base 40 includes at least one valve configured to close or open one of the ducts in the base 40. For example, at least one valve is located on the contact surface.

[0036] In addition, the base 40 is configured to supply power to the atomizer head 45. For example, the connection surface has an electrical conductor passing through the connection surface, which is configured to be electrically connected to the atomizer head 45 in a manner that is known in itself.

[0037] For example, the base portion 40 is configured to apply a potential difference between the first surface and the electrical conductor.

[0038] In particular, the base 40 is configured to change the potential value of the electrical conductor between a first value and a second value.

[0039] For example, the value of the first potential is 0. In this case, the value of the first potential is equal to the potential of the electrical ground of equipment 10.

[0040] The value of the second potential is strictly greater than the value of the first potential. For example, the difference between the value of the first potential and the value of the second potential is greater than 10 kilovolts (kV), for example, in the range of 20kV to 90kV. It should be noted that the second value can change, for example, during the trajectory of robot 15.

[0041] For example, the base 40 includes an electrical transformer circuit that can generate a voltage between the electrical conductor and ground equal to a second potential value from the supply voltage.

[0042] The atomizer head 45 is configured to atomize the fluid F. In particular, the atomizer head is configured to atomize the fluid F when the atomizer head is set to a second potential value.

[0043] In a known configuration, the atomizer head 45 consists of a skirt 50, a bowl 55, an electrical connector, and a turbine.

[0044] In a known configuration, the atomizer head 45 is configured such that all components of the atomizer head 45 have the same potential. In particular, the potential value of the atomizer head 45 is equal to the potential value of the electrical conductor of the base 40. Therefore, the atomizer head is configured to have a first potential value and a second potential value depending on the potential value applied to the electrical conductor by the base 40.

[0045] The skirt 50 is configured to receive the flow of gas G from the base 40 and to generate a set of flows that follow the discharged fluid F from the received flow.

[0046] The bowl 55 is configured to be rotationally driven around the axis A1 by the turbine. The bowl 55 is configured to generate a flow of fluid F when fluid F is injected into the bottom of the bowl 55 during the rotation of the bowl 55.

[0047] The electrical connector is electrically connected to the skirt 50, the bowl 55, the turbine, and the electrical conductor of the base 40.

[0048] The control module 25 is configured to control the movement of the atomizer 20 by the robot 15.

[0049] In addition, the control module 25 is configured to control the supply of fluid F, and / or gas G, and / or liquid to the atomizer head 45. For example, the control module 25 is configured to control the opening and / or closing of each valve in the base 40.

[0050] In addition, the control module 25 is configured to control the change in the potential of the atomizer head 45 from a first value to a second value, which is controlled by the base 40.

[0051] For example, the control module 25 comprises a memory and a processor having software instructions that, when executed by the processor, form a robot 15 motion control module, an atomizer head 45 supply control module, and a control module for changing the potential. Alternatively, at least one of these modules may be understood as a dedicated integrated circuit or a further programmable logic element.

[0052] For example, the control module 25 includes a human-machine interface (HMI), such as a screen, keyboard, and / or mouse, which enables the transmission of information and / or commands between the control module 25 and the operator.

[0053] For example, the control module 25 is a device located remotely from the robot 15. In particular, the control module 25 is fixed to the reference system.

[0054] For example, the control module is located outside the housing that defines the volume containing the robot 15.

[0055] The measurement module 30 is configured to measure at least one value of the parameters of the atomizer 20. In addition, the measurement module 30 is configured to send at least one message created according to the measured at least one value to a remote device, for example, the control module 25.

[0056] The measurement module 30 includes at least one sensor 60, a power supply 65, an electrical control module 70, and a communication module 75.

[0057] In the first example, for instance, the measuring module 30 is attached to the atomizer 20. In this case, the measuring module 30 also comprises a first housing 80.

[0058] For example, the measuring module 30 is at least partially housed between the base 40 and the atomizer head 45.

[0059] In particular, the measurement module 30 is passed through at least one duct and an electrical conductor that connects the base 40 to the head 45 of the atomizer.

[0060] In one embodiment, the measuring module 30 at least partially surrounds the connection surface around the second axis A2. In this case, the first housing 80 is in the form of a ring that at least partially surrounds the connection surface.

[0061] For example, the ring completely encloses the connection surface around the second axis A2, i.e., over 360°. Alternatively, the ring partially encloses the connection surface. For example, the ring is an annular portion that encloses the connection surface over a range of 240° or less.

[0062] For example, at least one of the elements of the sensor 60, power supply 65, control module 70 and / or communication module 70 is sealed within the ring 80 when the measuring module 30 is fixed to the atomizer head 45.

[0063] "Sealed" means that the ring 80 is coupled to the atomizer head 45 and / or base 40 to prevent fluid droplets from reaching any of the elements above the measuring module 30 from the outside.

[0064] It should be noted that embodiments are also possible in which the ring 80 does not provide a seal between the inside and outside of the ring 80.

[0065] In particular, the ring surrounds at least one of the elements of the sensor 60, power supply 65, control module 70, and / or communication module 70, especially in a plane perpendicular to the second axis A2.

[0066] Instead, at least one of the elements of the sensor 60, power supply 65, control module 70 and / or communication module 70 is embedded in a mass of electrically insulating material, in particular the material forming the ring 80.

[0067] The second axis A2 is perpendicular to the connection surface and is, for example, coupled to axis A1.

[0068] For example, the base 40 and the atomizer head 45 are arranged along axis A2.

[0069] A reference point for the potential of the measurement module 30 is defined.

[0070] The reference point is the point from which the potential of each element of the measurement module 30, particularly the sensors 60, power supply 65, electrical control module 70, and communication module 75, is defined.

[0071] In particular, the reference point is the point where the various current flows passing through the measurement module 30 return.

[0072] Sometimes, such reference points are called "ground." In many electrical installations, the reference point is the ground.

[0073] In other words, the measurement module 30 is configured to operate using a reference point as an electrical ground.

[0074] For example, each of the sensors 60, power supply 65, electrical control module 70, and communication module 75 is electrically connected to a reference point, either directly or indirectly.

[0075] The measurement module 30 is configured such that its reference point is electrically connected to the atomizer head 45. In particular, the reference point is at the same potential as the electrical conductor of the base 40. That is, the reference point of the measurement module 30 has the same potential as the atomizer head 45 and especially the electrical conductor of the base 40.

[0076] In particular, the reference point is electrically connected to the skirt 50.

[0077] For example, the measuring module 30 includes an electrical contact 82 that is in contact with the atomizer head 45, and in particular with the skirt 50. It should be noted that there are also embodiments in which the reference point is electrically connected to an element of the atomizer 45 other than the skirt 50, for example, a turbine or another electrically conductive element.

[0078] In this case, the electrical contact 82 acts as a reference point for the potential of the measurement module 30.

[0079] For example, the electrical contact 82 is electrically connected to the control module 70. It should be noted that a common reference point is defined by the various electronic circuits that make up the measurement module 30. In addition, embodiments are equally possible in which the common reference point is connected to the sensor 60, or to another element of the measurement module 30.

[0080] Therefore, the measurement module 30 is configured to manipulate the potential applied to the atomizer head 45 by the base 40 by being considered as an electrical ground.

[0081] For example, each sensor 60 is mounted on the inner surface 85 of the first housing 80. In particular, each sensor 60 is surrounded by the inner surface 85 in a plane perpendicular to axis A2.

[0082] Each sensor 60 is configured to measure the parameter values ​​of the atomizer 20. In addition, each sensor 60 is configured to transmit the measured values ​​to the control module 70.

[0083] In particular, each sensor 60 is configured to measure and transmit a value when the atomizer 20 is set to a second potential value, for example, while the bowl 55 is rotating.

[0084] For example, each sensor 60 is selected from a list consisting of an accelerometer, a temperature sensor, a microphone, and a valve position sensor for the atomizer 20.

[0085] It should be noted that other examples of the sensor 60 may also be incorporated into the measurement module 30.

[0086] Each accelerometer 60 is configured to measure the acceleration of the atomizer 20. For example, an accelerometer 60 is configured to measure the acceleration value of the atomizer 20 in one direction. Alternatively, the same accelerometer 60 is configured to measure the acceleration values ​​of the atomizer in two or three directions perpendicular to each other.

[0087] In particular, at least one accelerometer 60 is configured to measure the acceleration of the atomizer 20 in a direction perpendicular to the axis A1 of rotation of the bowl 55. Measuring the acceleration in this direction allows for the detection of unbalance in the bowl 55, which can suggest an imbalance in the bowl 55 or a defect in the turbine.

[0088] Measuring acceleration in one or two other directions allows for the detection of excessive acceleration of the atomizer 20 during its movement and that is likely to cause stalling of the bowl 55, and thus provides suggestions for corrections that should be made, for example, by reducing the stalling acceleration or by changing the trajectory of the atomizer 20.

[0089] Each microphone 60 is configured to measure the value of noise generated by the atomizer 20. For example, the noise is the noise generated by the bowl 55 during its rotation.

[0090] Each temperature sensor 60 is configured to measure the temperature of the atomizer 20.

[0091] "Temperature of atomizer 20" is defined as the temperature of an element of atomizer 20, for example, the temperature of the atomizer head 45. In particular, each temperature sensor 60 is configured to measure the temperature of the skirt 50. Alternatively, at least one temperature sensor 60 is configured to measure the temperature of the turbine, the temperature of the exhaust duct, or the temperature of another element of atomizer 20.

[0092] For example, each temperature sensor 60 includes a thermocouple 90 in contact with the atomizer head 45, and in particular, with the skirt 50. For example, the thermocouple 90 is at the same height as the end face 95 of the first housing 80. However, other types of temperature sensors may be used.

[0093] Each position sensor is configured to measure the position of the valve, for example, by measuring the stroke of a valve needle incorporated into the contact surface between the base 40 and the head 45 of the atomizer 20.

[0094] The end face 95 defines the first housing 80 along axis A2 and faces the atomizer head 45. In particular, the end face 95 is in contact with the skirt 50.

[0095] Another end face 100 defines the first housing 80 along axis A2 and faces the base 40.

[0096] The power supply 65 is configured to supply power to the control module 70, the communication module 75, and their respective sensors 60.

[0097] For example, the power supply 65 includes an energy storage device 105 and a charging device 110.

[0098] The storage device 105 is configured to store electrical energy. For example, the storage device 105 includes a capacitor. For example, the capacitor is a supercapacitor.

[0099] Note that other types of electrical energy storage devices may also be used, such as rechargeable or non-rechargeable batteries.

[0100] The charging device 110 is configured to receive energy from an external device for the measurement module 30 and to charge the storage device 105 with the received energy.

[0101] In particular, unit 110 is a dielectric charging unit. For example, the charging unit 110 includes an antenna configured to receive electromagnetic radiation and to generate a potential difference from the received radiation. Furthermore, the charging unit 110 is configured to apply a potential difference to the two terminals of the measuring unit 105.

[0102] For example, the antenna of the charging unit 110 has a winding that is electrically conductive.

[0103] Instead, the charging unit 110 has two connection terminals held by the outer surface 115 of the first housing 80, and the charging unit 110 is configured to transmit the potential difference applied to the two terminals of the charging unit 110 to the terminals of the measuring unit 105.

[0104] The control module 70 is configured to control the acquisition of values ​​for at least one parameter of the atomizer 20 by each of the sensors 60.

[0105] The control module 70 is configured to control the acquisition of at least one value, in particular the value of the atomizer's acceleration, while the atomizer head 45 is raised to a second potential value.

[0106] In addition, the control module 70 is configured to control the acquisition of at least one value, in particular the value of the atomizer's acceleration, during the rotation of the bowl.

[0107] In addition, the control module 70 is configured to control the acquisition of at least one value, in particular the acceleration value of the atomizer, while the atomizer 20 is being moved by the robot 15.

[0108] The control module 70 is configured to create a diagnostic message from at least one measured value and to transmit the diagnostic message to the communication module 75.

[0109] For example, the control module 70 is configured to insert at least one measured value into the diagnostic message. In particular, the control module 70 is configured to insert a measured temperature value into the diagnostic message.

[0110] For example, the temperature value to be measured is taken at the end of the atomization process of fluid F.

[0111] Alternatively, or in addition, the control module 70 is configured to calculate at least one diagnostic value from the set of measured values ​​and to insert at least one diagnostic value into a diagnostic message.

[0112] For example, each diagnostic value is the amplitude or frequency value of a frequency component, and the frequency component is the frequency component of noise measured by acceleration or a microphone.

[0113] For example, each diagnostic value is calculated from at least one coefficient of the Fourier transform.

[0114] For example, the Fourier transform is the Fourier transform of measured acceleration values ​​or noise measured by a microphone.

[0115] Instead, the Fourier transform is the Fourier transform of the velocity or displacement values ​​of the atomizer 20, which are obtained by integrating the measured acceleration values.

[0116] According to another variation, each diagnostic value is a coefficient of the Fourier transform of the measured acceleration value or the noise measured by the microphone.

[0117] Alternatively, or in addition, for example, at least one diagnostic value may be the maximum acceleration value of the atomizer 20.

[0118] For example, the control module 70 is configured to calculate the coefficients, frequency, and / or amplitude values ​​using the Fast Fourier Transform. The Fast Fourier Transform, often also called FFT, is an algorithm for calculating the Discrete Fourier Transform.

[0119] According to one embodiment, the diagnostic message includes a set of diagnostic values ​​obtained during the rotation of the bowl 55.

[0120] Alternatively, or in addition, for example, at least one measurement identifies a malfunction or impact to the atomizer 20, which is detected by the control module 70 based on the measured value. For example, a diagnostic message identifies the malfunction or impact, and includes a display of the time of the malfunction or impact, such as the date and associated time.

[0121] For example, the control module 70 comprises a memory and a processor having software instructions that, when executed by the processor, form a control module for acquiring at least one value from a sensor and a module for creating diagnostic messages. Alternatively, at least one of these modules is understood to be in the form of a dedicated integrated circuit or a programmable logic element.

[0122] For example, the control module 70 includes an internal clock. The term "clock" refers to any device that enables the control module 70 to measure the passage of time. An example of such a clock is a circuit that generates a periodic signal related to a counter for the number of signal periods.

[0123] For example, the clock allows the control module 70 to directly measure elapsed time. In this case, the control module 70 can associate each event, for example, each value measured by a sensor, with time.

[0124] Alternatively, a clock can be used so that the control module 70 counts the number of events, for example, by detecting the maximum value of a periodic signal, and associates each measured value with something that identifies a single event (e.g., a number) or something that identifies the period between two events (e.g., a number). In this case, the control module 70 cannot directly measure the passage of time, but an external device can establish a correspondence between each identifier and the corresponding time.

[0125] In particular, the communication module 75 is configured to transmit diagnostic messages to a device separated from the atomizer 20. For example, the separated device is the first station 35.

[0126] According to one variation, the separated device is the control module 25.

[0127] In particular, the communication module 75 is configured to transmit diagnostic messages via radio frequency communication.

[0128] Radio frequency communication is the transmission of a message using a signal that includes at least one radio frequency electromagnetic wave.

[0129] Radio frequency electromagnetic waves are electromagnetic waves with frequencies ranging from 3 kilohertz (kHz) to 3 gigahertz (GHz).

[0130] For example, the communication module 75 can transmit or receive electromagnetic waves having a frequency of 13.553 MHz or higher and 13.567 MHz or lower.

[0131] Preferably, the communication module 75 is capable of transmitting and receiving electromagnetic waves having a frequency of 13.553 MHz or higher and 13.567 MHz or lower.

[0132] Advantageously, the communication module 75 uses the Near Field Communication (NFC) protocol. Near Field Communication is a short-range, high-frequency wireless communication technology that enables the exchange of information between devices at a distance of approximately 10 centimeters (cm) or less. NFC technology is an extension of ISO / IEC 14443.

[0133] Alternatively, the communication module 75 can transmit or receive electromagnetic waves having a frequency of 2400 megahertz (MHz) or higher and 2483.5 MHz or lower.

[0134] Preferably, the communication module 75 is capable of transmitting and receiving electromagnetic waves having a frequency of 2400 megahertz (MHz) or higher and 2483.5 MHz or lower.

[0135] Advantageously, the communication module 75 uses the Bluetooth® communication protocol. Bluetooth® is a communication standard that enables bidirectional exchange of data over very short distances. The standards that define the Bluetooth® protocol are defined by the Bluetooth® Special Interest Group.

[0136] According to another variation, the communication module 75 uses a different type of protocol, such as the Wi-Fi protocol. Wi-Fi, also spelled wifi, is a set of wireless communication protocols defined by the IEEE 802.11 group (ISO / IEC 8802-11) of standards.

[0137] In another variation, the communication module 75 is configured to transmit diagnostic messages by electrical signals. For example, the communication module 75 is configured to have at least one electrical contact leading to the outer surface 115 of the first housing 80 and to connect to a corresponding electrical contact in the first station 35.

[0138] It should be noted that embodiments in which the communication module 75 does not exist are also possible, for example, in which the atomizer is periodically removed to retrieve the measured values ​​and / or values ​​otherwise contained in the diagnostic message.

[0139] The first station 35 is fixed to the reference system. For example, the first station 35 is fixed to the base 37 of the robot 15.

[0140] The first station, 35, is configured to receive diagnostic messages.

[0141] In addition, the first station 35 is configured, in a manner that is publicly known, to clean the atomizer 20 when it is in the idle position.

[0142] Alternatively, or in addition, the first station 35 is configured to fill the reserve of fluid F in the atomizer 20.

[0143] It should be noted that embodiments in which the first station 35 is not capable of cleaning and / or refilling the atomizer 20 are also considered. For example, the first station 35 has a single function of receiving diagnostic messages.

[0144] The first station 35 comprises a second housing 120, a receiver module 125, a refill module 127, at least one cleaning nozzle 130, and a refill connector 135.

[0145] The second housing 120 defines an opening 140 for housing the atomizer 20. When the atomizer 20 is in the resting position, it is at least partially housed in the opening 140.

[0146] For example, the opening 140 extends along axis A3 from the upper surface 145 of the first station 35. When the atomizer 20 is in the resting position, for example, axis A1 is parallel to axis A3.

[0147] The receiver module 125 is configured to receive diagnostic messages and transmit them to a device configured to enable information exchange with an operator, such as a control module 25. Furthermore, the receiver module 125 and the device to which the diagnostic messages are transmitted by the receiver module 125 form a device for evaluating the diagnostic messages.

[0148] For example, the receiver module 125 has an antenna configured to receive diagnostic messages.

[0149] For example, the receiver module 125 is held by the upper surface of the second housing 120. In particular, the receiver module 125 faces the measuring module 30 when the atomizer 20 is in the resting position.

[0150] When the atomizer 20 is in the idle position, the distance between the receiver module 125 and the communication module 75 is 15 centimeters or less.

[0151] Instead, the receiver module 125 has at least one electrical contact configured to make contact with the measurement module 30 when the atomizer 20 is in the idle position, and receives diagnostic messages as electrical signals.

[0152] The recharge module 127 is configured to recharge the storage device 105 when the atomizer 20 is in the idle position.

[0153] For example, the recharging module 127 is configured to generate a variable electromagnetic field that creates a potential difference at the terminals of the charging unit 110. For example, the charging module 127 includes electrically conductive windings configured to generate a variable electromagnetic field by passing an alternating current through the charging module 127.

[0154] When the atomizer 20 is in the idle position, the distance between the charging module 127 and the charging unit 110 is 5 centimeters or less.

[0155] Many types of inductive charging modules 127 are used for many applications, such as charging mobile phones.

[0156] When the atomizer 20 is in the idle position, the cleaning nozzle 130 is configured, in a manner known to the extent that it cleans the atomizer head 45 by spraying a liquid stream, particularly a solvent stream, onto the atomizer head 45.

[0157] The filling connector 135 is configured, in a known manner, to inject a reserve of fluid F into the atomizer 20 when the atomizer 20 is in the rest position.

[0158] The operation of the equipment 10 will now be described with reference to Figure 4, which shows a flowchart of the process in a method for measuring at least one parameter of the atomizer 20.

[0159] The method consists of an initial step 200, a first displacement step 210, an atomization step 220, a second displacement step 230, and a transmission step 240.

[0160] In the initial process 200, the atomizer 20 is in the idle position.

[0161] In the initial step 200, the atomizer exhibits a first potential value.

[0162] In the first displacement step 210, the control module 25 controls the displacement of the atomizer 20 to the operating position.

[0163] In addition, the control module 70 controls the measurement of the acceleration value of the atomizer 20 by at least one accelerometer 60 while the atomizer 20 is moving.

[0164] For example, each accelerometer acquires acceleration values ​​at a time period equal to, say, 3kHz, within the range of 500Hz to 5kHz.

[0165] Each value measured by the sensor 60 is transmitted to the control module 70 and stored in the memory of the control module 70.

[0166] During the displacement process 210, for example after the movement of the atomizer 20, the control module 25 controls the change in potential of the atomizer head 45 via the base 40 from a first value to a second value.

[0167] In the atomization process 220, the atomizer 20 atomizes the fluid F at the operating position.

[0168] In the atomization process 220, the atomizer head exhibits a second potential value.

[0169] For example, in a known manner, a potential difference equal to the value of the second potential is applied between the object P coated with the fluid F and the atomizer head 45. In particular, the object P is grounded.

[0170] To atomize the fluid F, the bowl 55 is rotated around its axis, and the fluid F is injected into the bowl 55, generating a fluid ejection F. In addition, the skirt generates a gas ejection G intended to form the fluid ejection F.

[0171] During the atomization process 220, the control module 70 controls the acquisition of at least one value by at least one sensor 60.

[0172] For example, the control module 70 controls the acquisition of sets of acceleration values ​​of the atomizer 20 by one or more accelerometers 60 during the rotation of the bowl 55.

[0173] Alternatively, or in addition, the control module 70 controls the acquisition of the value of the noise emitted by the bowl 55 during the rotation of the bowl 55.

[0174] Alternatively, or in addition, during the atomization process 220, one of the sensors 60 measures the positional value of the corresponding valve needle position.

[0175] For example, in the atomization process 220, the valve needle is switched between an open configuration in which the fluid F or air can flow through the valve and a closed configuration in which the valve is sealed to the fluid F or air. The sensor 60 measures the value of the needle position during the switching of the needle.

[0176] In addition, the control module 70 controls the acquisition of sets of temperature values ​​from the atomizer head 45, and particularly from the skirt 50. For example, the temperature values ​​are acquired in time periods that are included in 1 s to 2 min. In particular, at least one temperature value is acquired during each coating cycle.

[0177] Each value measured by the sensor 60 is transmitted to the control module 70 and stored in the memory of the control module 70.

[0178] In the second movement process 230, the control module 25 controls the robot 15's movement of the atomizer 20 to the resting position.

[0179] In addition, the control module 25 controls the change in the potential of the atomizer head 45 from a second value to a first value. For example, before the atomizer 20 moves, or even during the movement of the atomizer 20 to the resting position, the potential of the atomizer head 45 reaches the first value.

[0180] In addition, the control module 70 controls the acquisition of acceleration values ​​during the movement of the atomizer from the operating position to the idle position.

[0181] Optionally, at least one temperature value is obtained during the second transfer step 230.

[0182] Each value measured by the sensor 60 is transmitted to the control module 70 and stored in the memory of the control module 70.

[0183] During transmission process 240, the diagnostic message is transmitted directly from the communication module 75 to the receiving module 125. According to one variation, the diagnostic message is transmitted directly from the communication module 75 to the control module 25.

[0184] For example, a diagnostic value is generated by the control module 70 from the measured value in the transmission process 240. Alternatively, at least one diagnostic value is generated in the first transfer process 210, the atomization process 220 and / or the second transfer process 230. According to one embodiment, the calculation of the diagnostic value is performed sequentially, so that each new measured value is included in the calculation of the diagnostic value as soon as possible after the value is acquired.

[0185] For example, at least one diagnostic value is the maximum acceleration value obtained during each of the movement processes 210 and 230.

[0186] Each value stored in the control module 70 is timestamped, meaning it is associated with the date of acquisition or an identifier for the date of acquisition, and the control module 25 is configured to convert them to the date of acquisition.

[0187] In addition, the diagnostic values ​​include a set of amplitude values ​​for frequency components acquired during the rotation of bowl 55. The frequency components are the frequency components of the measured acceleration and / or noise.

[0188] For example, the diagnostic value includes the amplitude value of each frequency component for a given set of frequency components. The set of amplitude values ​​then forms the frequency spectrum of the noise emitted by the atomizer 20 during the acceleration of the atomizer 20 or the rotation of the bowl 55.

[0189] Instead, the diagnostic values ​​include, for each set of frequency ranges, values ​​that indicate the amplitude of the frequency components within the frequency range under consideration. For example, a representative value is the average of the amplitudes of the frequency components within the frequency range in question.

[0190] Alternatively, or in addition, the diagnostic value includes the frequency value of the frequency component of the measured acceleration, and the frequency value includes the value relating to the maximum amplitude.

[0191] For example, a set of diagnostic values ​​includes the minimum and maximum values ​​of the measured temperature.

[0192] Alternatively, or in addition, the diagnostic values ​​may include, for example, values ​​for the duration of valve switching (also called "response time") or values ​​for needle movement between open and closed valve configurations, which are calculated by the control module 70.

[0193] For example, "switching time" refers to the period of needle movement between the open and closed positions of the valve, or vice versa.

[0194] Diagnostic messages are transmitted from the receiver module 125 to the control module 25.

[0195] In the transmission process 240, the storage device 105 is electrically charged by the charging module 127.

[0196] In addition, the atomizer head 45 is cleaned by the first station 35 during the transmission process 240. Optionally, the fluid reserve F of the atomizer 20 is filled by the filling connector 135.

[0197] For example, the control module 25 compares the frequency spectrum included in the diagnostic value with a reference spectrum and detects a malfunction of the bowl 55, such as an imbalance, from the comparison. For example, a malfunction is detected if the difference between the amplitude value included in the diagnostic message and the amplitude value of the reference spectrum related to the same frequency is greater than or equal to a threshold. Alternatively, the values ​​compared are values ​​from the reference spectrum and the diagnostic message, respectively, that represent the same frequency range amplitude.

[0198] If at least one acceleration value measured during the movement process 210 and 203 is greater than or equal to a predetermined threshold, the control module 25 detects an impact on the robot 15 or the atomizer 20.

[0199] The control module 25 notifies the operator of any detected malfunction or impact, for example, by displaying it on a corresponding screen.

[0200] Each detected impact is associated on the screen with the date of the impact, which is estimated from the timestamp of the respective acceleration above a threshold. For example, the position of robot 15 at the time of the impact is displayed on the screen.

[0201] The maximum and minimum measured temperature values ​​are also displayed on the screen.

[0202] It should be noted that if the communication module 75 is configured to transmit diagnostic messages to a device separated from the first station 35, for example, directly to the control module 25, the transmission process 240 can be performed while the atomizer is not in the idle position, for example, while moving the atomizer 20 from the operating position to the idle position.

[0203] Since the potential reference point of the measurement module 30 is electrically connected to the atomizer head 45, the measurement module 30 is able to measure the parameter values ​​of the atomizer 20 during operation of the atomizer 20, especially when the atomizer head is at a high potential relative to the rest of the equipment 10. Thus, the measurement module 30 enables maintenance of the equipment 10 as soon as a malfunction of the atomizer 20 is detected. In addition, performing measurements while the atomizer head is at a high potential allows access to information that would otherwise not be obtainable, such as detecting shocks occurring at that time, and further avoids slowing down the operation of the equipment by providing a specific time range for performing measurements.

[0204] It should be noted that the measurement module 30 is equipped with a sensor 60 that can be used even in equipment where the potential of the atomizer does not change during atomization, thereby enabling better detection of malfunctions or accidents related to the atomizer 20. In this case, the reference point for the potential does not need to be connected to the atomizer head 45.

[0205] The measuring module 30, which is incorporated into a ring surrounding the connection surface between the base 40 and the atomizer head 45, allows the measuring module 30 to be adapted to existing equipment with minimal modifications to the base 40 and / or atomizer head 45, because the ring is already in place at this position and protects the valve passing through the connection surface.

[0206] Attaching the various components 60, 65, 70, and 75 of the measuring module 30 to the inner surface of the ring makes the manufacturing of the measuring module 30 easier, while also making it easier to assemble and enabling good accuracy in the measurements performed.

[0207] The support of the ring 80 of the measuring module 30 for the skirt 50 allows for very accurate measurement of the parameters of the atomizer 20 and the parameters of the skirt, particularly its temperature, due to the large contact area between the atomizer 20 and the measuring module 30.

[0208] Electrically connecting the reference point of the measurement module 30 to the skirt 50 allows the reference point to be simply and reliably set to the same potential as the atomizer head 45.

[0209] By measuring the acceleration of the atomizer 20 using the accelerometer 60 of the measurement module 30, it is possible to detect impacts on the robot 15 or the atomizer 20, as well as malfunctions of the atomizer 20, particularly imbalances of the bowl 50 due to deformation of the bowl 50 caused by the impact, or malfunctions of the turbine.

[0210] Measuring acceleration during the movement of the atomizer 20 allows for the detection of impacts during this movement and, if necessary, the adjustment of the robot 15's trajectory. For this purpose, impacts can be detected in a simple manner by comparing the acceleration value with a threshold.

[0211] By measuring the acceleration during the rotation of bowl 55, imbalances in the bowl can be detected.

[0212] Measuring the temperature of the atomizer 20 allows for the detection of supercooling due to gas expansion, which is used to shape the ejection of fluid F or to drive the turbine, and therefore to prevent the condensation of water vapor on the atomizer 20 from having a detrimental effect on the quality of the parts coated with fluid F, either by interfering with atomization or by water droplets falling onto the parts coated with fluid F. Since the skirt 50 represents a large portion of the surface of the atomizer head 45, measuring the temperature of the skirt 50 provides reliable information indicating the condition of the atomizer 20.

[0213] Furthermore, using a microphone, it is possible to detect imbalances in the bowl 55, such as deformation of the bowl 55 or a lack of spatial orientation with respect to axis A1, from the noise emitted by the bowl 55 during its rotation.

[0214] In particular, Figure 5 shows a graph of the frequency spectrum of noise measured during the rotation of the defective bowl 55 at 25,000 rpm. Specifically, the amplitude A (in arbitrary units) of the measured noise frequency components is shown as a function of frequency f (in arbitrary units).

[0215] Figure 6 shows graph 255 of the frequency spectrum of noise measured during the rotation of a defective bowl 55 at 25,000 rpm. In particular, the amplitude A (in arbitrary units) of the measured noise frequency components is shown as a function of frequency f. Thus, it can be seen that a comparison of the two spectra, and in particular a comparison at one or more difference thresholds which are the difference between amplitudes over the same frequency, enables the detection of the defective bowl 55.

[0216] The integration of the receiver module 125 into the first station 35 allows for easy adaptation of existing equipment and enables the transmission of information from measurements without the additional time wasted during the cleaning of the atomizer 20. The use of radio frequency diagnostic messages also reduces the need for modifications to the equipment 10, as the trajectory of the atomizer 20 does not need to be modified to transmit diagnostic messages by contacting the electrical connector. This limits the risk of arcing or contamination of the equipment 10.

[0217] On the other hand, when diagnostic messages are transmitted by electrical signals, the power consumption of the measurement module 30 is limited.

[0218] Furthermore, the presence of the storage device 105 and the charging of the storage device 105 by the station 35, particularly by induction, minimizes the need for adjustments to the equipment 10.

[0219] A second example of equipment 10 will now be described. Elements identical to those in the first example will not be described again; only the differences will be highlighted.

[0220] A second example of equipment 10 is shown in Figure 7.

[0221] A second example of the equipment 10 may include an atomizer 20 in which the potential does not change during operation, for example, an atomizer 20 that is connected to ground during atomization.

[0222] The measurement module 30 is connected to the first station 35. In particular, the measurement module 30 is not attached to or connected to the atomizer 20.

[0223] The robot 15 can move the atomizer 20 relative to the measuring module 30.

[0224] When the atomizer 20 is in the idle position, the distance between the atomizer 20 and the measuring module 30 is 20 centimeters (cm) or less. For example, the atomizer 20 is in contact with the first station 35 and, in particular, with the measuring module 30. Specifically, when the atomizer 20 is in the idle position, the skirt 50 is in contact with the measuring module 30.

[0225] The measurement module 30 is configured to measure the parameter values ​​of the atomizer when the atomizer 20 is in the idle position.

[0226] The measurement module 30 at least partially encloses the axis A3 of the opening 140. In particular, the measurement module 30 at least partially encloses the atomizer 20 when the atomizer 20 is in the resting position.

[0227] The housing 80 of the measuring module forms a ring that defines, for example, an opening 140 at least partially in a plane perpendicular to axis A3. Thus, the ring forms, for example, the inner wall of the first station 35.

[0228] Instead, the housing 80 forms a ring that partially surrounds the shaft A3, for example, over an angle of 240° or less. Note that the position and shape of the housing 80 can be changed.

[0229] In particular, each sensor 60 is attached to the ring. For example, each sensor 60 is held or attached to the ring.

[0230] For example, each sensor 60 is fixed to the ring wall 85 that defines the opening 40. In particular, each sensor 60 is positioned radially outward from the ring wall 85 that defines the opening 140. Thus, the sensors 60 are protected from any splashes that may occur and are electrically isolated from the rest of the equipment by the wall 85.

[0231] For example, the temperature sensor 60 is configured to contact the atomizer head 45 and, in particular, the skirt 50 when the atomizer 20 is in the idle position. Specifically, the temperature sensor 60 extends through a ring formed by the housing 80.

[0232] Each accelerometer 60 is configured to measure the acceleration value of the first station 35, in particular the measurement module 30.

[0233] A method for measuring at least one parameter of the atomizer 20, as implemented by the second equipment example 10, is described below.

[0234] The method includes an atomization step 220, a transfer step 230, and a measurement step.

[0235] In the atomization process 220, the atomizer 20 atomizes the fluid F at its operating position.

[0236] In the atomization process 220, the atomizer head 45 has a second potential value.

[0237] For example, in a process that is itself a method, a potential difference equal to the value of the second potential is applied between the object P to be coated with the fluid F and the atomizer head 45. In particular, the object P is grounded.

[0238] To atomize the fluid F, the bowl 55 is rotated around its axis, and the fluid F is injected into the bowl 55 to generate a ejection of the fluid F. In addition, the skirt generates a gaseous ejection G intended to form the ejection of the fluid F.

[0239] In the moving process 230, the atomizer 20 is moved from the operating position to the idle position by the robot 15. In addition, the potential of the atomizer 20 is changed from the second value to the first value.

[0240] During the measurement process, the bowl 55 is rotated around its axis. For example, a control module 55 controls the rotation of the bowl 55.

[0241] The acceleration values ​​of the first station 35 are measured by each accelerometer 60 during the rotation of the bowl.

[0242] In addition, the temperature of at least one of the atomizer heads 45, particularly the skirt 50, is measured by the temperature sensor 60 when the atomizer 20 is in the idle position.

[0243] The diagnostic values ​​are generated in a manner similar to that of the first equipment example, and the acceleration values ​​used are those of the first station 35, not the atomizer 20.

[0244] Placing the measurement module 30 in the first station 35 simplifies the measurement module 30, and it no longer needs to be connected to a high voltage. In addition, the measurement module 30 does not need to hold the electrical energy storage device 105.

[0245] Furthermore, there is no need to modify the existing atomizer 20 to enable parameter measurement.

[0246] In addition, the measurement module 30 can also transmit information by a wired analog method or by a wired network, which has the advantage of being less affected by ambient electromagnetic interference than wireless transmission.

[0247] The computation and local storage, which are drawbacks of the microprocessor embedded in the control module 70, are no longer necessary.

[0248] Finally, the measurement module 30 located at station 35 is not subjected to overspray (i.e., fluid splashes) that may occur during application.

[0249] If the first station 35 is a station used to clean and / or refill the atomizer 20, the equipment 10 can be easily obtained by making limited modifications to existing equipment.

[0250] When the atomizer 20 is in the second position, and the measuring module 30 forms a ring 80 surrounding the atomizer 20, many sensors 60 can be brought into contact with the atomizer 20, especially when the sensors 60 are mounted on the wall of the ring 80 defining the opening. In addition, the measuring module 30 can be introduced into known types of cleaning stations by positioning the measuring module 30 so that measurements are taken when the atomizer 20 is in a position where it is being cleaned.

[0251] In particular, a microphone can be used to detect malfunction of the bowl 55 even when there is no contact between the atomizer 20 and the station 35. This makes the measurement very reliable because the measurement does not depend on the quality of the support between the atomizer 20 and the station 35.

[0252] When the first station 35 is separated from the station used to clean and / or refill the atomizer 20, the first station 35 can be used to measure atomizer parameters that are incompatible with too close proximity to the cleaning station, for example, the value of the second potential. In practice, the first station 35 can be electrically isolated from the rest of the equipment 10, which is considerably easier than such isolation of the cleaning station.

[0253] Measuring the potential of the atomizer 20 makes it possible to detect malfunctions related to the power supply of the atomizer head 45, particularly drift in the value of the second potential, which can result in incomplete spraying if the value of the second potential is too low.

[0254] In particular, when the measurement module 30 is close to or in contact with the atomizer 20 during measurement, the measurement module 30 is easily separated from other devices in the facility 10. Therefore, the use of a station 35 that can move the measurement module 30 makes such isolation possible in an easy manner.

[0255] The use of station 35 fixed to the reference system of equipment 10 simplifies equipment 10.

[0256] According to a variation of the second example, the measuring module 30 is not coaxial with the opening 140. For example, the measuring module 30 is located on the side of the first station 35. In this case, the resting position is not the cleaning position. The atomizer 20 is cleaned and / or filled with fluid F in the cleaning position in which the measuring module 30 is at least partially housed in the opening 140.

[0257] This modification is easier to incorporate in accordance with the dimensions of the atomizer 20 and the first existing station 35.

[0258] In another variation, the measuring module 30 is not in contact with the atomizer 20 when the atomizer 20 is in the idle position.

[0259] In this case, the measurement module 30 does not have, for example, an accelerometer.

[0260] For example, at least one sensor 60 is configured to measure the acceleration, velocity, and displacement of the atomizer 20 without contacting the atomizer 20, for example, by the reflection of a laser beam off the outer surface of the atomizer.

[0261] Alternatively, or in addition, at least one sensor 60 is configured to measure the noise emitted by the bowl 55 during its rotation.

[0262] For example, each temperature sensor 60 is configured to measure the temperature of the atomizer 20, particularly the skirt 50, by measuring the infrared radiation emitted by the atomizer 20.

[0263] According to the third example of equipment 10, the equipment includes a second station in addition to the first station 35.

[0264] The first station 35 includes a measuring module 30. For example, the measuring module 30 is attached to a movable arm of the first station 35, and the first station 35 is configured to move the measuring module between a first position where the measuring module 30 is away from the atomizer 20 when the atomizer 20 is in a resting position, and a second position where the measuring module 30 is in contact with the atomizer 20 when the atomizer 20 is in a resting position.

[0265] For example, the second station is fixed to the base 37 of the robot 15.

[0266] The second station has an opening 140, a cleaning nozzle 130, and a filling connector 35.

[0267] For example, the measurement module 30 includes, in addition to the sensor 60 already described, another sensor 60 configured to measure the potential value of the atomizer when the measurement module 30 is in contact with the atomizer.

[0268] A method for measuring at least one parameter of the atomizer 20, as implemented by a third example of the equipment 10, is described below.

[0269] The method includes an atomization step 300, a first movement step 310, a measurement step 320, and optionally a second movement step 330 and a maintenance step 340. A flowchart of the steps in this method is shown in Figure 8.

[0270] It should be noted that the order of steps 300-340 may change.

[0271] In the atomization process 300, the atomizer 20 atomizes the fluid F at its operating position.

[0272] In the atomization process 300, the atomizer head 45 has a second potential value.

[0273] For example, in a known manner, a potential difference equal to the value of the second potential is applied between the object P coated with the fluid F and the atomizer head 45. In particular, the object P is grounded.

[0274] To atomize the fluid F, the bowl 55 is rotated around its axis, and the fluid F is injected into the bowl 55 to generate a ejection of the fluid F. In addition, the skirt generates a gaseous ejection G intended to form the ejection of the fluid F.

[0275] In the first movement process 310, the atomizer 20 is moved from the operating position to the idle position by the robot 15. In addition, if the measuring module 30 is movable, it is moved to its second position.

[0276] The potential of the atomizer 20 remains fixed at the second value by the base 40 of the atomizer 20 during the first moving process 310.

[0277] At least one value of the potential of the atomizer 20, particularly the potential of the skirt 50, is measured during the measurement step 320. In particular, the value of the second potential is measured.

[0278] After measuring the potential value, the potential of the atomizer 20 is changed from the second value to the first value.

[0279] In measurement step 320, bowl 55 is rotated about the axis of bowl 55. For example, control module 55 controls the rotation of bowl 55.

[0280] The values of the acceleration of measurement module 30 are measured by respective accelerometers 60 during the rotation of bowl 55.

[0281] In addition, the value of at least one temperature of the head 45 of the atomizer, particularly of skirt 50, is measured by temperature sensor 60 when atomizer 20 is in the rest position.

[0282] The diagnostic value is generated in a manner similar to the first equipment example, and the value of the acceleration used is the value of the acceleration from the first station 35 and not the value of the acceleration from atomizer 20.

[0283] After measurement step 320, the atomizer is moved by robot 15 to a cleaning position where atomizer 20 is at least partially received in the opening 140 of the second station.

[0284] In maintenance step 340, in a manner known per se, atomizer 20 is cleaned and / or the reservoir is filled with fluid F.

[0285] Particularly, the third example enables the measurement of the potential, especially when the potential has a second value, even when this second value is extremely high compared to the remainder of equipment 10. Measurement module 30 is not incorporated in the station intended to clean the atomizer or fill the reservoir, but in a dedicated station 35, so it is easier for this station 35 to insulate from the remainder of equipment 10.

[0286] In one variation, there are at least two first stations 35. For example, one of the first stations 35 is equipped with a potential sensor 60, and the other first station 35 or second station is equipped with other sensors 60. In particular, this embodiment limits the risk that the high potential of the atomizer 20 will damage other sensors 60 or associated devices.

[0287] It should be noted that in the second or third example, the measurement of the potential value by station 35 is optional. Depending on a possible embodiment, the potential value may not be measured, and values ​​of other parameters of the atomizer may be measured instead. The following embodiments can be cited as examples of the present invention. (Note 1) Equipment (10) comprising an atomizer (20) configured to atomize a fluid (F), a robot (15), and a first station (35), wherein the robot (15) is configured to move the atomizer (20) between at least a first position and a second position in a predetermined reference system, the atomizer (20) is configured to atomize the fluid (F) when the atomizer (20) is in the first position, a certain distance is defined between the atomizer (20) and the first station (35), the distance when the atomizer (20) is in the second position is strictly less than the distance when the atomizer (20) is in the first position, and the first station (35) comprises at least one sensor (60) configured to measure at least one value of a parameter of the atomizer (20) when the atomizer (20) is in the second position. (Note 2) The apparatus as described in Appendix 1, wherein the first station (35) comprises a ring (80) defining an opening (140) surrounded by the ring (80), and the atomizer (20) is at least partially housed in the opening (140) when the atomizer (20) is in the second position. (Note 3) The apparatus according to Appendix 1 or 2, wherein the ring (80) has an inner wall (85) that defines an opening, and at least one sensor (60) is attached to the inner wall (85). (Note 4) The equipment described in any one of the appendices 1 to 3, wherein the spray (20) is in contact with the first station (35) when the atomizer (20) is in the second position. (Note 5) The apparatus according to any one of the appendices 1 to 4, wherein the atomizer (20) is equipped with a skirt (50) for generating an airflow to guide the atomized fluid (F), and the skirt (50) is in contact with the first station (35) when the atomizer (20) is in the second position. (Note 6) The equipment according to any one of the appendices 1 to 5, wherein the atomizer (20) comprises a turbine, a fluid (F) injector, and a bowl (55) which is rotationally driven by the turbine to atomize the fluid (F) when the fluid (F) is injected into the bowl (55) by the injector, and the equipment (10) comprises a control module (25) configured to control the rotation of the bowl (55) when the atomizer (20) is in a second position. (Note 7) The equipment described in any one of the appendices 1 to 6, wherein at least one sensor (60) is a microphone. (Note 8) The equipment according to any one of the appendices 1 to 7, wherein at least one sensor (60) is an accelerometer configured to measure the acceleration value of the first station (35) when the atomizer (20) is in a second position, and the atomizer (20) is in contact with the first station (35) when the atomizer (20) is in a second position. (Note 9) The apparatus according to Appendix 7 or 8, as dependent on Appendix 6, comprising a control module (70) configured to detect defects in the atomizer (20), particularly unbalances in the bowl (55), based on values ​​measured by a sensor (60) during the rotation of the bowl (55). (Note 10) The apparatus according to any one of Annexes 1 to 9, wherein the atomizer (20) further comprises at least one valve having a needle that is movable between two positions, and at least one sensor (60) of the first station (35) is configured to measure the position of the valve needle. (Note 11) The apparatus as described in Appendix 10, comprising a control module (70) configured to calculate the time it takes for the needle to move between two needle positions based on the measured needle position values. (Note 12) The apparatus according to any one of the appendices 1 to 11, wherein the first station (35) is further configured to clean the atomizer (20) with a liquid, particularly a solvent, when the atomizer (20) is in the second position. (Note 13) The equipment according to any one of the appendices 1 to 11, wherein the equipment (10) comprises a second station separated from a first station (35), and a robot (15) is further configured to move the atomizer (20) from one of the first and second positions to a third position, and the second station is configured to clean the atomizer (20) with a liquid, particularly a solvent, when the atomizer (20) is in the third position. (Note 14) The equipment described in any one of the appendices 1 to 13, wherein the first station (35) is fixed to a predetermined reference system. (Note 15) The apparatus as described in any one of the appendices 1 to 14, wherein at least one sensor (60) is configured to measure the temperature value of the atomizer (20). (Note 16) The equipment described in any one of the appendices 1 to 15, wherein at least one of the sensors (60) is configured to measure the potential value of the atomizer (20). (Note 17) A method for measuring at least one parameter of an atomizer (20) configured to atomize a fluid (F), the method being carried out by a facility (10) comprising an atomizer (20), a robot (15), and a first station (35), A step (300) in which the fluid (F) is atomized by the atomizer (20) located in the first position; and A movement process (310) of a robot (15) between a first position and a second position, wherein a certain distance is defined between the atomizer (20) and the first station (35), and the movement process (310) is such that the distance when the atomizer (20) is in the second position is exactly less than the distance when the atomizer (20) is in the first position. A method comprising a first station (35) equipped with at least one sensor (60), and a measurement step (320) of measuring at least one value of a parameter of the atomizer (20) by the sensor (60) when the atomizer (20) is in a second position. (Note 18) The method according to Appendix 17, wherein during the measurement step (320), the potential of the atomizer (20) is changed from a first value to a second value that is strictly higher than the first value, and during the measurement step (320), at least one sensor (60) measures the second value of the potential. (Note 19) The method according to Appendix 17 or 18, wherein the atomizer (20) comprises a bowl (55) and a turbine configured to rotate the bowl (55), and the measuring step (320) includes rotating the bowl (55) and detecting defects in the bowl (55) from values ​​measured by at least one sensor (60) during the rotation of the bowl (55). (Note 20) The method according to Appendix 19, wherein the measurement step (320) includes acquiring noise emitted by the bowl (55) during the rotation of the bowl (55) and detecting defects from the acquired sound. (Note 21) The method according to Appendix 19, wherein the atomizer (20) is in contact with a first station (35) during a measurement step, and the measurement step (320) includes measuring the value of at least one acceleration of the first station (35) during the rotation of the bowl (55), and detecting a defect from the measured value of at least one acceleration.

Claims

1. A atomizer (20) configured to atomize a fluid (F), A skirt (50) for generating an airflow to guide the atomized fluid (F); Turbine; Fluid (F) injector; and The bowl (55) is rotated by a turbine to atomize the fluid (F) when the fluid (F) is injected into the bowl (55) by a fluid (F) injector. A atomizer (20) equipped with, A robot (15) is configured to move an atomizer (20) between at least a first position and a second position in a predetermined reference system, and the atomizer (20) is configured to atomize a fluid (F) when the atomizer (20) is in the first position, The first station (35), A measuring module (30) is provided at the first station (35), A housing (80) wherein the housing (80) forms a ring defining an opening (140), the opening (140) is surrounded by the ring, an atomizer (20) is at least partially housed in the opening (140) when the atomizer (20) is in a second position, a skirt (50) is in contact with a measuring module (30) when the atomizer (20) is in a second position, and the housing (80) has an inner wall (85) where the ring defines the opening (140); At least one sensor (60), It is attached to the interior wall (85), The atomizer (20) is configured to measure at least one value of the atomizer (20) parameters when it is in a second position. A distance is defined between the atomizer (20) and the first station (35), and at least one sensor (60) such that the distance when the atomizer (20) is in the second position is strictly less than the distance when the atomizer (20) is in the first position; and A control module (70) configured to detect a defect in the atomizer (20) based on a value measured by at least one sensor (60) during the rotation of the bowl (55) when the atomizer (20) is in a second position. A measuring module (30) equipped with, Equipment (10) equipped with the following:

2. The apparatus (10) according to claim 1, further comprising a control module (25) configured to rotate the bowl (55) when the atomizer (20) is in a second position.

3. The apparatus (10) according to claim 1 or 2, wherein at least one sensor (60) is a microphone.

4. The apparatus (10) according to claim 1 or 2, wherein at least one sensor (60) is an accelerometer configured to measure the acceleration value of a measuring module (30) when the atomizer (20) is in a second position.

5. The apparatus (10) according to claim 1 or 2, wherein the defect detected by the control module (70) is an imbalance in the bowl (55).

6. The apparatus (10) according to claim 1 or 2, wherein the atomizer (20) further comprises at least one valve having a needle that is movable between two positions, and at least one sensor (60) of the first station (35) is configured to measure the position of the valve needle.

7. The apparatus (10) according to claim 6, comprising a control module (70) configured to calculate the time of needle movement between two needle positions from measured needle position values.

8. The apparatus (10) according to claim 1 or 2, wherein the first station (35) is further configured to clean the atomizer (20) with a liquid, particularly a solvent, when the atomizer (20) is in the second position.

9. The apparatus (10) according to claim 1 or 2, further comprising a second station separated from a first station (35), a robot (15) configured to move the atomizer (20) from one of a first and a second position to a third position, and the second station configured to clean the atomizer (20) with a liquid, particularly a solvent, when the atomizer (20) is in the third position.

10. The apparatus (10) according to claim 1 or 2, wherein the first station (35) is fixed to a predetermined reference system.

11. The apparatus (10) according to claim 1 or 2, wherein at least one sensor (60) is configured to measure the temperature value of the atomizer (20).

12. The apparatus (10) according to claim 1 or 2, wherein at least one of the sensors (60) is configured to measure the potential value of the atomizer (20).

13. A method for measuring at least one parameter of an atomizer (20) configured to atomize a fluid (F), the method being carried out by the apparatus (10) described in claim 1 or 2, A step (300) in which the fluid (F) is atomized by the atomizer (20) located in the first position; The process (310) involves the robot (15) moving the atomizer (20) between a first position and a second position, and Measurement step (320): When the atomizer (20) is in a second position, a sensor (60) measures at least one value of the atomizer (20) parameters during the rotation of the bowl (55), and based on the value measured by the at least one sensor (60), the control module (70) detects a defect in the atomizer (20). Methods that include...

14. The method according to claim 13, wherein during the measurement step (320), the potential of the atomizer (20) is changed from a first value to a second value that is strictly higher than the first value, and during the measurement step (320), at least one sensor (60) measures the second value of the potential.

15. The method according to claim 13, wherein the measurement step (320) includes acquiring noise emitted by the bowl (55) during the rotation of the bowl (55) and detecting defects from the acquired sound.

16. The method according to claim 13, wherein the atomizer (20) is in contact with a first station (35) during a measurement step (320), and the measurement step (320) includes measuring the value of at least one acceleration of a measuring module (30) during the rotation of a bowl (55), and detecting a defect from the measured value of at least one acceleration.

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