Apparatus including an atomizer and related methods

Abstract

The invention relates to a device (10) comprising an atomizer (20) configured to atomize a fluid (F), a robot (15) configured to move the atomizer (20) between at least a first position and a second position in a predetermined reference frame, 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 a 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) comprises at least one sensor configured to measure at least one value of a parameter of the atomizer (20) when the atomizer (20) is in said second position.

Description

[Technical Field]

[0001] This invention relates to a device equipped with an atomizer. Furthermore, this invention relates to a method for measuring the value of at least one parameter of such an atomizer. [Background Technology]

[0002] Many fluid atomizing installations include an atomizer, at least a portion of which is designed to be at a high electrical potential during atomization. Thus, the potential difference between the part to be coated with fluid and the atomizer tends to favor the projection of fluid droplets onto the part, because the droplets tend to be charged at the atomizer and follow the electric field lines between the atomizer and the part. The result is increased atomizer efficiency because it reduces the amount of fluid that does not reach the part.

[0003] However, the high potential exposed to the atomizer head necessitates electrical insulation between the atomizer head and other parts of the atomizing device to prevent potentially dangerous arcing. Therefore, the atomizer is equipped with a minimal number of necessary components, and the electrical connection between the atomizer head and the robot on which it is mounted is arranged in a way that isolates the atomizer head from the rest of the device while allowing a potential difference to be applied between these components. When the atomizer is not in operation, the potential returns to ground, allowing the atomizer to be moved closer to other parts of the device or operated manually without danger.

[0004] However, an atomizer is a complex device comprising many moving parts, such as a bowl that rotates at high speed via a turbine, valves that start and stop supplying the fluid to be atomized to the bowl, and even a skirt that generates a precisely controlled air jet to optimally shape the fluid jet. All these components must work together to provide efficient fluid projection, and if one or more of these components fail, the projection efficiency drops rapidly. Furthermore, even if the components of the atomizer are not damaged, many external factors can affect the atomizer's efficiency and / or the quality of the resulting parts.

[0005] Typically, and especially due to high-voltage operation, it is difficult to assess atomizer performance while it is in operation. This makes atomizer maintenance difficult, particularly because minute defects or damage are not easily detected, making rapid intervention impossible before the negative consequences of these defects become too great. Consequently, frequent periodic maintenance must be planned, which limits atomizer availability. Otherwise, the average quality of products using fluids in manufacturing decreases when undetected atomizer defects lead to defects in these products.

[0006] Even atomizers whose potential remains constant during operation are complex and often difficult to monitor, and therefore they tend to be subject to similar limitations.

[0007] Therefore, a fluid atomizer with higher availability is needed. [Summary of the Invention]

[0008] To this end, an apparatus is proposed comprising an atomizer configured to atomize fluid, a robot, and a first station, the robot being configured to move the atomizer between at least a first position and a second position in a predetermined reference frame, the atomizer being configured to atomize fluid when the atomizer is in the first position, defining a distance between the atomizer and the first station, the distance when the atomizer is in the second position being strictly less than the distance when the atomizer is in the first position, and the first station comprising at least one sensor configured to measure at least one value of a parameter of the atomizer when the atomizer is in the second position.

[0009] This invention allows for periodic monitoring of the atomizer's status during operation simply by moving the atomizer to its second position. This makes it easier to detect atomizer malfunctions (or "faults"), including minor malfunctions that would otherwise be difficult to detect. Consequently, the need for periodic atomizer maintenance is limited, and atomizer availability is improved while providing better average atomizer quality than prior art atomizers could offer.

[0010] According to a particular implementation, the atomizer has one or more of the following features, which may be taken individually or in any technically permissible combination:

[0011] - The first station has a ring that defines an opening surrounded by the ring, and when the atomizer is in the second position, the atomizer is at least partially contained in the opening.

[0012] - The ring includes an inner wall defining the opening, and at least one sensor is attached to the inner wall.

[0013] - When the atomizer is in the second position, the atomizer is in contact with the first station.

[0014] - The atomizer includes a skirt designed to generate a consistent airflow of atomized fluid, which contacts the first station when the atomizer is in the second position.

[0015] - The atomizer includes a turbine, a fluid injector, and a bowl designed to be rotated by the turbine to atomize the fluid as it is injected into the bowl by the injector. The device includes a control module configured to control the rotation of the bowl when the atomizer is in a second position.

[0016] - At least one sensor is a microphone.

[0017] - At least one sensor is an accelerometer configured to measure the acceleration value of the first station when the atomizer is in the second position, in which the atomizer is in contact with the first station.

[0018] The device includes a control module configured to detect atomizer defects, particularly bowl imbalance, based on values ​​measured by sensors during bowl rotation.

[0019] The atomizer also includes at least one valve, which includes a needle that can move between two positions, and at least one sensor at the first station is configured to measure the position of the needle.

[0020] The device 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 value.

[0021] The first station is also configured to clean the atomizer with a liquid such as a solvent when the atomizer is in the second position.

[0022] The device has a second station separate from the first station, and the robot is also configured to move the atomizer from one of the first and second positions to a third position. The second station is configured to clean the atomizer with a liquid such as a solvent when the atomizer is in the third position.

[0023] - The first station is fixed in the predetermined reference frame.

[0024] - At least one sensor is configured to measure the temperature of the atomizer.

[0025] - At least one sensor is configured to measure the value of the atomizer's potential.

[0026] A method for measuring at least one parameter of an atomizer configured to atomize fluid is also proposed, the method being implemented by a device including an atomizer, a robot, and a first station, the method comprising the following steps:

[0027] - The fluid is atomized from the atomizer, with the atomizer in the first position; and

[0028] - The atomizer is moved between a first position and a second position by a robot, with a defined distance 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.

[0029] The first station includes at least one sensor, and the method includes the following steps: when the atomizer is in a second position, the sensor measures at least one value of a parameter of the atomizer.

[0030] According to a particular implementation, the method includes one or more of the following features, which may be taken individually or in any technically permissible combination:

[0031] - During the measurement step, the potential of the atomizer is modified from a first value to a second value that is strictly higher than the first value, and at least one sensor measures the second value of the potential during the measurement step.

[0032] - The atomizer includes a bowl and a turbine configured to drive the bowl to rotate. The measurement steps include: rotating the bowl and detecting defects in the bowl based on values ​​measured by at least one sensor during the rotation of the bowl.

[0033] The measurement steps include: acquiring the noise emitted by the bowl during its rotation, and detecting defects from the acquired sound.

[0034] - The atomizer comes into contact with the first station during the measurement step, which includes: measuring at least one acceleration value of the first station during the rotation of the bowl, and detecting defects from the measured acceleration value. [Attached Image Description]

[0035] The features and advantages of the present invention will become apparent upon reading the following description, which is given by way of non-limiting example only and is made with reference to the accompanying drawings, in which:

[0036] Figure 1 This is a schematic diagram of a first example of a fluid projection device according to the present invention, the device including an atomizer;

[0037] Figure 2 yes Figure 1 A schematic diagram of an example atomizer, which includes a measurement module;

[0038] Figure 3 yes Figure 2 A schematic diagram of an example measurement module;

[0039] Figure 4 It is by Figure 1 A flowchart of the steps involved in implementing the equipment method;

[0040] Figure 5 yes Figure 3 The noise spectrum acquired by the microphone in the measurement module corresponds to a defect-free atomizer;

[0041] Figure 6 yes Figure 3 The spectrum of noise acquired by the microphone in the measurement module corresponds to the defective atomizer;

[0042] Figure 7 This is a schematic diagram of a second example of a fluid projection device according to the present invention; and

[0043] Figure 8 It is by Figure 7 The flowchart shows the steps in the method of implementing the equipment.

Detailed Implementation Methods

[0044] Figure 1 The middle section shows a first example of the device 10 for fluid projection.

[0045] The device 10 includes a robot 15, an atomizer 20, a control module 25 for the robot 15, and an optional first station 35.

[0046] Device 10 is configured to atomize the first fluid F.

[0047] The first fluid F is, in particular, a coating product, such as paint or varnish. For example, the first fluid F is a paint or varnish intended to at least partially cover a panel P on a vehicle body.

[0048] Robot 15 supports atomizer 20. In particular, robot 15 is configured to move atomizer 20 in space, and specifically to orient atomizer 20 in multiple directions in space.

[0049] Specifically, robot 15 is configured to move atomizer 20 between an operating position and a stationary position within a predetermined reference frame, the stationary position sometimes referred to as the cleaning position.

[0050] The reference frame is a fixed reference frame relative to the position within device 10. For example, a ground reference frame.

[0051] Specifically, the robot 15 is configured to move the atomizer 20 between an operating position and a stationary position relative to the base 37 of the robot 15.

[0052] The distance between the atomizer 20 and the first station 35 when the atomizer is in the operating position is strictly greater than the distance between the atomizer 20 and the first station 35 when the atomizer is in the stationary position.

[0053] Robot 15 is, for example, an articulated arm having actuators that allow the segments of arm 15 to rotate relative to each other to move and orient the atomizer 20 in space.

[0054] In addition, robot 15 is designed to supply voltage or current to atomizer 20 and provide a flow of at least a second fluid, such as gas or solvent, and a first fluid F to be atomized.

[0055] Alternatively, the atomizer 20 includes a reservoir for the first fluid F, so that the first fluid F does not need to be supplied via the robot 15.

[0056] Gas G is, for example, air.

[0057] Robot 15 is configured to move atomizer 20 in space and / or orient atomizer 20 in multiple directions in space based on control messages received from control module 25. Additionally, robot 15 is configured to supply voltage or current and / or a first fluid and a second fluid to atomizer 20 based on corresponding control messages.

[0058] The atomizer 20 includes a base 40 and an atomizing head 45 in a manner known per se. The atomizer 20 also includes a measurement module 30.

[0059] According to one embodiment, the atomizer 20 includes a fluid reservoir F in a manner known per se, which is integrated, for example, into the atomizing head 45 or the base 40.

[0060] The base 40 has a first side that is connected to the robot 15 and a second side (also called the connecting side) to which the atomizing head 45 is attached.

[0061] The base 40 has at least one conduit passing through it, which supplies fluid, such as fluid F to be atomized, to the atomizing head 45. For example, the base 40 is traversed from the first surface to the connecting surface by a plurality of conduits leading to the connecting surface.

[0062] At least one conduit is configured to supply the fluid F to be atomized to the atomizing head 45. At least one other conduit is configured to supply gas G to the atomizing head 45. Optionally, at least one conduit is configured to supply a liquid, such as a solvent, to the atomizing head 45.

[0063] In a manner known per se, the base 40 includes, for example, at least one valve configured to close or open a pipe in the base 40. The at least one valve is located, for example, on a connection surface.

[0064] Additionally, the base 40 is configured to supply power to the atomizing head 45. For example, the connecting surface has an electrical conductor passing through it, which is configured to be electrically connected to the atomizing head 45 in a manner known per se.

[0065] For example, the base 40 is configured to apply a potential difference between the first surface and the electrical conductor.

[0066] Specifically, the base 40 is configured to change the potential value of the electrical conductor between a first value and a second value.

[0067] The first potential value is, for example, zero. In this case, the first potential value is equal to the potential value of the electrical ground of device 10.

[0068] The second potential value is strictly higher than the first potential value. The difference between the first and second potential values ​​is, for example, greater than or equal to 10 kilovolts (kV), and includes, for example, the range of 20 kV to 90 kV. It should be noted that the second value may vary, for example, during the trajectory of robot 15.

[0069] The base 40 includes, for example, a power transformer circuit capable of generating a voltage equal to a second potential value between the electrical conductor and the ground from the power supply voltage.

[0070] The atomizing head 45 is configured to atomize the fluid F. In particular, the atomizing head is configured to atomize the fluid F when the atomizing head is at a second potential value.

[0071] In a manner known per se, the atomizing head 45 consists of a skirt 50, a bowl 55, an electrical connector, and a turbine.

[0072] In a known manner, the atomizing head 45 is configured such that all components of the atomizing head 45 have the same potential. In particular, the potential value of the atomizing head 45 is equal to the potential value of the conductor of the base 40. Thus, the atomizing head is configured to be at a first potential value and a second potential value through the base 40, depending on the potential value applied to the conductor by the base 40.

[0073] The skirt 50 is configured to receive a gas flow G from the base 40 and generate a set of confirmed flow of projected fluid F from the received flow.

[0074] Bowl 55 is configured to rotate about axis A1 driven by a turbine. Bowl 55 is configured to generate a flow of fluid F when fluid F is injected into the bottom of bowl 55 during its rotation.

[0075] The electrical connector is electrically connected to the electrical conductors of the skirt 50, bowl 55, turbine and base 40.

[0076] The control module 25 is configured to control the movement of the atomizer 20 via the robot 15.

[0077] Additionally, the control module 25 is configured to control the supply of fluid F and / or gas G and / or liquid to the atomizing head 45. For example, the control module 25 is configured to control the opening and / or closing of various valves on the base 40.

[0078] In addition, the control module 25 is configured to control the change of the potential of the atomizing head 45 from a first value to a second value via the base 40.

[0079] For example, control module 25 includes a processor and a memory with software instructions that, when executed on the processor, form a motion control module for robot 15, a supply control module for atomizing head 45, and a control module for changing the voltage. Alternatively, at least one of these modules may be implemented as an application-specific integrated circuit or even a programmable logic device.

[0080] The control module 25 includes, for example, a human-machine interface (HMI), such as a screen, keyboard and / or mouse, to enable the transmission of information and / or instructions between the control module 25 and the operator.

[0081] The control module 25 is, for example, a device located remotely from the robot 15. In particular, the control module 25 is fixed in a reference frame.

[0082] For example, the control module is located outside the housing that defines the volume of the robot 15.

[0083] The measurement module 30 is configured to measure at least one value of a parameter of the atomizer 20. Additionally, the measurement module 30 is configured to transmit at least one generated message to a remote device (e.g., to the control module 25) based on the measured value.

[0084] The measurement module 30 includes at least one sensor 60, a power supply 65, an electronic control module 70, and a communication module 75.

[0085] In the first example, the measurement module 30 is attached to the atomizer 20, for example. In this case, the measurement module 30 further includes a first housing 80.

[0086] The measurement module 30 is, for example, at least partially housed between the base 40 and the atomizing head 45.

[0087] Specifically, the conduit and the electrical conductor that connects the base 40 to the atomizing head 45 traverse the measuring module 30.

[0088] According to one embodiment, the measuring module 30 at least partially surrounds the connecting 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 connecting surface.

[0089] For example, the ring completely surrounds the connecting surface around the second axis A2, that is, more than 360 degrees. Alternatively, the ring partially surrounds the connecting surface. For example, the ring is a ring-shaped portion surrounding the connecting surface at 240 degrees or less.

[0090] When the measurement module 30 is fixed to the atomizing head 45, at least one component from the sensor 60, power supply 65, control module 70 and / or communication module 75 is encapsulated in a ring 80, for example, in a hermetically sealed manner.

[0091] "Encapsulation" means that the ring 80 is associated with the atomizing head 45 and / or the base 40 to prevent fluid splashes from reaching any of the aforementioned components from outside the measuring module 30.

[0092] It should be noted that it is also possible to implement an embodiment in which the ring 80 does not provide a seal between the inner and outer sides of the ring 80.

[0093] Specifically, the ring surrounds at least one of the sensor 60, power supply 65, control module 70 and / or communication module 75, and in particular, surrounds each of the sensor 60, power supply 65, control module 70 and communication module 75 in a plane perpendicular to the second axis A2.

[0094] Alternatively, at least one element from sensor 60, power supply 65, control module 70 and / or communication module 75 is embedded in a large amount of electrically insulating material, particularly the material forming ring 80.

[0095] The second axis A2 is perpendicular to the connecting surface and, for example, merges with axis A1.

[0096] The base 40 and the atomizing head 45 are aligned, for example, along axis A2.

[0097] Define a reference point for the potential of the measurement module 30.

[0098] The reference point is the point that defines the potential of each component of the measurement module 30, particularly the sensors 60, the power supply 65, the electronic control module 70, and the communication module 75.

[0099] Specifically, the reference point is the point where the various currents flowing through the measurement module 30 return.

[0100] This reference point is sometimes referred to as the "ground." In most electrical equipment, the reference point is the ground.

[0101] In other words, the measurement module 30 is configured to operate with the reference point as the electrical ground.

[0102] For example, each of the sensors 60, power supply 65, electronic control module 70 and communication module 75 is electrically connected directly or indirectly to the reference point.

[0103] The measurement module 30 is configured such that a reference point is electrically connected to the atomizing head 45. Specifically, the reference point is at the same potential as the electrical conductors of the base 40. That is, the reference point of the measurement module 30 has the same potential as the electrical conductors of the atomizing head 45, and particularly the base 40.

[0104] Specifically, the reference point is electrically connected to the skirt 50.

[0105] For example, the measurement module 30 includes electrical contacts 82 resting on the atomizing head 45, particularly the skirt 50. It should be noted that there are implementations in which the reference point is electrically connected to a component other than the skirt 50 (e.g., a turbine or another conductive element) of the atomizing head 45.

[0106] In this case, the electrical contact 82 is used as a reference point for the potential of the measuring module 30.

[0107] Electrical contact 82 is electrically connected, for example, to control module 70. It should be noted that the common reference point is defined by the various circuits that make up measurement module 30. Furthermore, it is also possible for the common reference point to be connected to sensor 60 or even another element of measurement module 30.

[0108] Thus, the measurement module 30 is configured to operate by treating the potential applied to the atomizing head 45 by the base 40 as electrically grounded.

[0109] Each sensor 60 is attached, for example, to 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.

[0110] Each sensor 60 is configured to measure the value of atomizer parameter 20. Additionally, each sensor 60 is configured to transmit the measured value to the control module 70.

[0111] Specifically, each sensor 60 is configured to measure and transmit values ​​when the atomizer 20 is at a second potential value (e.g., when the bowl 55 is rotated).

[0112] Each sensor 60 is selected, for example, from a list of components consisting of: an accelerometer, a temperature sensor, a microphone, and a valve position sensor for the atomizer 20.

[0113] It should be noted that other examples of sensor 60 can also be integrated into measurement module 30.

[0114] Each accelerometer 60 is configured to measure the acceleration of the atomizer 20. For example, the 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.

[0115] Specifically, at least one accelerometer 60 is configured to measure the acceleration of the atomizer 20 in a direction perpendicular to the rotation axis A1 of the bowl 55. Measurement of acceleration in this direction allows for the detection of imbalances in the bowl 55, which indicate either an imbalance in the bowl 55 or a defect in the turbine.

[0116] Measurements of acceleration in one or two other directions allow for the detection of excessive acceleration of the atomizer 20 during its movement, which could lead to stall of the bowl 55, thereby providing indications for corrections to be made, such as by reducing the acceleration that caused the stall or by modifying the trajectory of the atomizer 20.

[0117] Each microphone 60 is configured to measure the noise value generated by the atomizer 20. The noise is, for example, the noise generated by the bowl 55 during its rotation.

[0118] Each temperature sensor 60 is configured to measure the temperature of the atomizer 20.

[0119] "Atomizer 20 temperature" is defined as the temperature of an element of atomizer 20, such as the temperature of atomizer head 45. Specifically, each temperature sensor 60 is configured to measure the temperature of skirt 50. Alternatively, at least one temperature sensor 60 is configured to measure the temperature of turbine, exhaust duct, or another element of atomizer 20.

[0120] Each temperature sensor 60 includes, for example, a thermocouple 90 that contacts the atomizing head 45, particularly the skirt 50. The thermocouple 90 is, for example, flush with the end face 95 of the first housing 80. However, other types of temperature sensors are also possible.

[0121] Each position sensor is configured to measure the position of the valve, for example, to measure the stroke of the valve needle integrated in the connection surface between the base 40 and the head 45 of the atomizer 20.

[0122] End face 95 defines a first housing 80 along axis A2 and is opposite to atomizing head 45. Specifically, end face 95 rests against skirt 50.

[0123] The other end face 100 defines a first housing 80 along axis A2 and is opposite to the base 40.

[0124] The power supply 65 is configured to supply power to the control module 70, the communication module 75, and each sensor 60.

[0125] The power source 65 includes, for example, an energy storage device 105 and a charging device 110.

[0126] Storage device 105 is configured to store electrical energy. For example, storage device 105 includes a capacitor. The capacitor is, for example, a supercapacitor.

[0127] Note that other types of energy storage devices are also possible, such as batteries, whether or not they are rechargeable.

[0128] The charging device 110 is configured to receive energy from a device outside the measurement module 30 and use the received energy to charge the storage device 105.

[0129] Unit 110 is in particular an inductive charging unit. For example, charging unit 110 includes an antenna configured to receive electromagnetic radiation and generate a potential difference from the received radiation. Charging unit 110 is then configured to apply a potential difference across two terminals of measuring unit 105.

[0130] For example, the antenna of the charging unit 110 has a conductive winding.

[0131] Alternatively, the charging unit 110 includes two connection terminals carried 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.

[0132] The control module 70 is configured to control the acquisition of at least one parameter value of the atomizer 20 by each pair of sensors 60.

[0133] The control module 70 is configured to control the acquisition of at least one value, particularly the acquisition of the atomizer acceleration value, when the atomizing head 45 rises to the second potential value.

[0134] In addition, the control module 70 is configured to control the acquisition of at least one value during bowl rotation, particularly the acquisition of the atomizer acceleration value.

[0135] In addition, the control module 70 is configured to control the acquisition of at least one value, particularly the acquisition of the atomizer acceleration value, during the movement of the atomizer 20 by the robot 15.

[0136] The control module 70 is configured to generate a diagnostic message from at least one measurement and transmit the diagnostic message to the communication module 75.

[0137] For example, control module 70 is configured to insert at least one measured value into the diagnostic message. Specifically, control module 70 is configured to insert a measured temperature value into the diagnostic message.

[0138] The measured temperature value is, for example, measured at the end of the fluid F atomization step.

[0139] Alternatively or additionally, the control module 70 is configured to calculate at least one diagnostic value from a set of measurements and insert the diagnostic value into a diagnostic message.

[0140] Each diagnostic value is, for example, the amplitude or frequency of a frequency component, which is the frequency component of acceleration or noise measured by a microphone.

[0141] For example, each diagnostic value is calculated from at least one coefficient of the Fourier transform.

[0142] Fourier transforms can be, for example, the Fourier transform of the measured acceleration values, or the Fourier transform of noise measured by a microphone.

[0143] Alternatively, the Fourier transform is a Fourier transform of the velocity or displacement values ​​of the atomizer 20, which are obtained by integrating the measured acceleration values.

[0144] According to another variation, the diagnostic values ​​are either the coefficients of the Fourier transform of the measured acceleration values ​​or the coefficients of the noise measured by the microphone.

[0145] Alternatively or additionally, at least one diagnostic value is, for example, the maximum acceleration value of the atomizer 20.

[0146] Control module 70 is configured, for example, to calculate the values ​​of coefficients and / or frequencies and / or amplitudes via a Fast Fourier Transform (FFT). The Fast Fourier Transform, commonly known as FFT, is an algorithm used to compute the Discrete Fourier Transform.

[0147] According to one implementation, the diagnostic message includes a set of diagnostic values ​​acquired during the rotation of the bowl 55.

[0148] Alternatively or additionally, at least one diagnostic value may be an identifier of a malfunction or impact on the atomizer 20, which is detected by the control module 70 based on a measurement. For example, the diagnostic message may include an identifier of the malfunction or impact, as well as an indication of the time of the malfunction or impact (e.g., date and associated time).

[0149] For example, control module 70 includes a processor and a memory with software instructions that, when executed on the processor, form a control module for acquiring at least one value from a sensor and a module for generating diagnostic messages. Alternatively, at least one of these modules is implemented in the form of an application-specific integrated circuit or a programmable logic component.

[0150] Control module 70 includes, for example, an internal clock. The term "clock" refers to any device that enables control module 70 to measure the elapsed time. An example of such a clock is a circuit that generates a periodic signal associated with a counter for the number of signal cycles.

[0151] For example, a clock allows the control module 70 to directly measure elapsed time. In this case, the control module 70 can correlate individual events (e.g., values ​​measured by sensors) with time.

[0152] Alternatively, a clock can be used to enable the control module 70 to count the number of events, such as detecting the maximum value of a periodic signal, and to associate each measurement with an identifier of an event (e.g., the quantity) or the interval between two events. In this case, the control module 70 cannot directly measure the elapsed time, but an external device can establish a correspondence between each identifier and the corresponding time.

[0153] The communication module 75 is specifically configured to transmit diagnostic messages to a device separate from the nebulizer 20. This separate device is, for example, the first station 35.

[0154] According to the variant, the separate device is the control module 25.

[0155] The communication module 75 is specifically configured to transmit diagnostic messages via radio frequency communication.

[0156] Radio frequency communication is the transmission of messages via signals that include at least one radio frequency electromagnetic wave.

[0157] Radio frequency electromagnetic waves are electromagnetic waves with frequencies between 3 kHz and 3 GHz.

[0158] For example, the communication module 75 can transmit or receive electromagnetic waves with a frequency greater than or equal to 13.553 MHz and less than or equal to 13.567 MHz.

[0159] Preferably, the communication module 75 is capable of transmitting and receiving electromagnetic waves with a frequency greater than or equal to 13.553MHz and less than or equal to 13.567MHz.

[0160] Advantageously, the communication module 75 uses the Near Field Communication (NFC) protocol. NFC is a short-range, high-frequency wireless communication technology that allows information to be exchanged between devices at a distance of up to approximately 10 centimeters (cm). NFC technology is an extension of ISO / IEC 14443.

[0161] Alternatively, the communication module 75 is capable of transmitting or receiving electromagnetic waves with a frequency greater than or equal to 2400 MHz and less than or equal to 2483.5 MHz.

[0162] Preferably, the communication module 75 is capable of transmitting and receiving electromagnetic waves with a frequency greater than or equal to 2400 MHz and less than or equal to 2483.5 MHz.

[0163] Advantageously, the communication module 75 uses the Bluetooth communication protocol. Bluetooth is a communication standard that allows for bidirectional data exchange over very short distances. The standard defining the Bluetooth protocol is defined by the Bluetooth Special Interest Group.

[0164] According to another variant, the communication module 75 uses another type of protocol, such as the Wi-Fi protocol. Wi-Fi, also spelled wifi, is a set of wireless communication protocols managed by the IEEE 802.11 standards group (ISO / IEC 8802-11).

[0165] According to another variation, the communication module 75 is configured to transmit diagnostic messages via electrical signals. For example, the communication module 75 includes at least one electrical contact that is open on the outer surface 115 of the first housing 80 and configured to connect to a corresponding electrical contact on the first station 35.

[0166] It should be noted that implementations in which the communication module 75 is absent are also possible, for example in cases where the atomizer will be periodically disassembled to extract measurements and / or values ​​that would otherwise be included in diagnostic messages.

[0167] The first station 35 is fixed in a reference frame. For example, the first station 35 is fixed relative to the base 37 of the robot 15.

[0168] Station 35 is configured to receive diagnostic messages.

[0169] In addition, the first station 35 is configured in a manner known per se to clean the atomizer 20 when the atomizer 20 is in a stationary position.

[0170] Alternatively or additionally, the first station 35 is configured as a reservoir for the fluid F filling the atomizer 20.

[0171] Please note that embodiments in which the first station 35 is not allowed to clean and / or refill the atomizer 20 are also considered. For example, the first station 35 has the sole function of receiving diagnostic messages.

[0172] The first station 35 includes a second housing 120, a receiving module 125, a refill module 127, at least one cleaning nozzle 130, and a refill connector 135.

[0173] The second housing 120 defines an opening 140 for receiving the atomizer 20. When the atomizer 20 is in a stationary position, the atomizer 20 is at least partially contained in the opening 140.

[0174] The opening 140 extends, for example, along axis A3 from the upper surface 145 of the first station 35. When the atomizer 20 is in the stationary position, axis A1 is, for example, parallel to axis A3.

[0175] The receiving module 125 is configured to receive diagnostic messages and transmit them to a device configured to allow information exchange with an operator, such as the control module 25. The receiving module 125 and the device to which the diagnostic messages are transmitted by the receiving module 125 then form a means for evaluating the diagnostic messages.

[0176] For example, the receiving module 125 has an antenna configured to receive diagnostic messages.

[0177] The receiving module 125 is supported, for example, by the upper surface 145 of the second housing 120. Specifically, when the atomizer 20 is in a stationary position, the receiving module 125 is opposite to the measuring module 30.

[0178] When the atomizer 20 is in a stationary position, the distance between the receiver module 125 and the communication module 75 is less than or equal to 15 centimeters.

[0179] Alternatively, the receiving module 125 includes at least one electrical contact configured to contact an electrical contact on the measuring module 30 when the atomizer 20 is in a stationary position to receive a diagnostic message as an electrical signal.

[0180] The recharge module 127 is configured to recharge the storage device 105 when the atomizer 20 is in a stationary position.

[0181] 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 a conductive winding, wherein the charging module 127 is configured to circulate alternating current to generate the variable electromagnetic field.

[0182] When the atomizer 20 is in a stationary position, the distance between the charging module 127 and the charging unit 110 is less than or equal to 5 cm.

[0183] Many types of inductive charging modules 127 are used in many applications, such as mobile phone charging.

[0184] In a manner known per se, the cleaning nozzle 130 is configured to clean the atomizing head 45 when the atomizer 20 is in a stationary position, in particular by atomizing a liquid flow, especially a solvent flow, onto the atomizing head 45.

[0185] The filling connector 135 is configured in a known manner to inject fluid F into the atomizer 20 when the atomizer 20 is in a stationary position.

[0186] Now refer to Figure 4 The diagram illustrates the operation of device 10 and shows a flowchart of steps in a method for measuring at least one parameter of atomizer 20.

[0187] The method includes an initial step 200, a first displacement step 210, an atomization step 220, a second displacement step 230, and a transfer step 240.

[0188] In the initial step 200, the atomizer 20 is in a stationary position.

[0189] In the initial step 200, the atomizer displays a first potential value.

[0190] In the first displacement step 210, the control module 25 controls the displacement of the atomizer 20 to the operating position.

[0191] In addition, the control module 70 controls the accelerometer 60 to measure the acceleration value of the atomizer 20 during the movement of the atomizer 20.

[0192] For example, each accelerometer acquires acceleration values ​​over a time period between 500 Hz and 5 kHz (e.g., equal to 3 kHz).

[0193] The values ​​measured by sensor 60 are transmitted to control module 70 and stored in the memory of control module 70.

[0194] During displacement step 210, for example after the movement of atomizer 20, control module 25 controls the change of potential of atomizer head 45 from a first value to a second value via base 40.

[0195] In atomization step 220, the atomizer 20, which is in its operating position, atomizes the fluid F.

[0196] In atomization step 220, the atomizing head displays a second potential value.

[0197] For example, in a manner known per se, a potential difference equal to the second potential value is applied between the object P to be coated with fluid F and the atomizing head 45. In particular, object P is grounded.

[0198] To atomize the fluid F, the bowl 55 rotates about its axis, and the fluid F is injected into the bowl 55 to generate a fluid jet F. Additionally, a gas jet G is generated at the skirt to shape the fluid jet F.

[0199] During the atomization step 220, the control module 70 controls at least one value to be acquired by at least one sensor 60.

[0200] For example, the control module 70 controls one or more accelerometers 60 to acquire a set of acceleration values ​​of the atomizer 20 during the rotation of the bowl 55.

[0201] Alternatively or additionally, the control module 70 controls the acquisition of the value of the noise emitted by the bowl 55 during its rotation.

[0202] Alternatively or additionally, during atomization step 220, a sensor 60 measures the position value of the needle position corresponding to the valve.

[0203] For example, in atomization step 220, the valve needle switches between an open configuration and a closed configuration. In the open configuration, fluid F or air can flow through the valve, and in the closed configuration, the valve needle is sealed to fluid F or air. Sensor 60 measures the needle position value during needle switching.

[0204] Additionally, the control module 70 controls the acquisition of a set of temperature values ​​from the atomizing head 45, particularly from the skirt 50. For example, the temperature values ​​are acquired over a time period between 1 second and 2 minutes. Specifically, at least one temperature value is acquired during each paint cycle.

[0205] The values ​​measured by sensor 60 are transmitted to control module 70 and stored in the memory of control module 70.

[0206] In the second moving step 230, the control module 25 controls the robot 15 to move the atomizer 20 to a stationary position.

[0207] Additionally, the control module 25 controls the change of the potential of the atomizing head 45 from a second value to a first value. For example, the potential of the atomizing head 45 reaches the first value before the atomizer 20 moves or even while the atomizer 20 is in a stationary position.

[0208] In addition, the control module 70 controls the acquisition of acceleration values ​​during the movement of the atomizer from the operating position to the stationary position.

[0209] Optionally, at least one temperature value may be acquired during the second moving step 230.

[0210] The values ​​measured by sensor 60 are transmitted to control module 70 and stored in the memory of control module 70.

[0211] During transfer step 240, the diagnostic message is transmitted directly from communication module 75 to receiving module 125. In a variant, the diagnostic message is transmitted directly from communication module 75 to control module 25.

[0212] For example, the control module 70 generates a diagnostic value based on the value measured in the transfer step 240. Alternatively, at least one diagnostic value is generated in the first movement step 210, the atomization step 220, and / or the second movement step 230. According to the embodiment, the calculation of the diagnostic value is performed continuously, thereby including the new measurement value in the calculation of the diagnostic value as quickly as possible after each new measurement value is acquired.

[0213] At least one diagnostic value is, for example, the maximum value of the acceleration values ​​acquired during each of the movement steps 210 and 230.

[0214] Each value stored in the control module 70 is timestamped, i.e., associated with the value acquisition date or an identifier of the acquisition date, and the control module 25 is configured to convert the identifier into the acquisition date.

[0215] Additionally, the diagnostic values ​​include a set of amplitude values ​​for the frequency components acquired during the rotation of the bowl 55. The frequency components are the frequency components of the measured acceleration and / or noise.

[0216] For example, for a set of predetermined frequency components, the diagnostic value includes the amplitude value of each frequency component. This set of amplitude values ​​then forms the spectrum of the acceleration of the atomizer 20 or the noise emitted by the atomizer 20 during the rotation of the bowl 55.

[0217] Alternatively, for each of a set of frequency ranges, the diagnostic value includes a value indicating the amplitude of the frequency components of the frequency range under consideration. For example, the representative value is the average amplitude of the frequency components of the frequency range in question.

[0218] Alternatively or additionally, diagnostic values ​​may include the frequency value of the frequency component of the measured acceleration, which is a value related to the highest amplitude.

[0219] This set of diagnostic values ​​includes, for example, the minimum and maximum values ​​of the measured temperature.

[0220] Alternatively or additionally, diagnostic values ​​may include, for example, the value of the valve switching duration (also known as “response time”) calculated by the control module 70 or the value of the needle moving between the open and closed valve configurations.

[0221] "Switching time" refers to the duration for which the pointer moves between the valve's open and closed configurations, and vice versa.

[0222] Diagnostic messages are transmitted from receiving module 125 to control module 25.

[0223] In transfer step 240, charging module 127 charges storage device 105.

[0224] Additionally, during transfer step 240, the atomizing head 45 is cleaned by the first station 35. Optionally, the fluid reservoir F of the atomizer 20 is filled via the filling connector 135.

[0225] Control module 25 compares, for example, the spectrum included in the diagnostic value with a reference spectrum, and detects functional abnormalities of bowl 55, such as imbalance of bowl 55, based on the comparison. For example, a functional abnormality is detected if the difference between the amplitude value included in the diagnostic message and the amplitude value associated with the same frequency in the reference spectrum is greater than or equal to a threshold. Alternatively, the values ​​compared are amplitude values ​​showing the same frequency range from the reference spectrum and the diagnostic message, respectively.

[0226] If at least one acceleration value measured during movement steps 210 and 203 is greater than or equal to a predetermined threshold, the control module 25 detects an impact from the robot 15 or the atomizer 20.

[0227] The control module 25 may signal to the operator, for example, via a corresponding display on the screen, any detected functional abnormality or impact.

[0228] On the screen, each detected impact is associated with the date of the impact estimated from the timestamp of each acceleration value greater than or equal to a threshold. For example, the position of robot 15 at the time of the impact is displayed on the screen.

[0229] The maximum and minimum measured temperature values ​​are also displayed on the screen.

[0230] Note that if the communication module 75 is configured to transmit diagnostic messages to a device separate from the first station 35, such as directly to the control module 25, then the transfer step 240 can be performed when the atomizer is not in a stationary position, such as when the atomizer 20 is moved from the operating position to the stationary position.

[0231] Because the potential reference point of the measurement module 30 is electrically connected to the atomizer head 45, the measurement module 30 allows for the measurement of parameter values ​​of the atomizer 20 during operation, particularly when the atomizer head is at a high potential relative to the rest of the device 10. Thus, once a fault in the atomizer 20 is detected, the measurement module 30 allows for the performance of maintenance on the device 10. Furthermore, performing measurements when the atomizer head is at a high potential allows access to information that would otherwise be unavailable, such as for detecting shocks occurring at that time, and avoids slowing down the operation of the device by providing a specific time range for performing the measurements.

[0232] It should be noted that the measurement module 30 includes sensors 60, which may also be used in devices where the potential of the atomizer remains constant during atomization, thus allowing for better detection of functional abnormalities or accidents related to the atomizer 20, in which case the reference point for the potential does not need to be connected to the atomizer head 45.

[0233] The measurement module 30, integrated in a ring around the connection surface between the base 40 and the atomizing head 45, allows the measurement module 30 to be adapted to existing devices with minimal modifications to the base 40 and / or the atomizing head 45, since the ring is positioned there to protect the valve passing through the connection surface.

[0234] Attaching the various components 60, 65, 70, 75 of the measurement module 30 to the inner surface of the ring makes the manufacture of the measurement module 30 easier, while also making it easy to install and allowing for good accuracy of the measurements performed.

[0235] The ring 80 of the measuring module 30 abuts against the support of the skirt 50, making it easy to measure the parameters of the skirt, especially its temperature, and the parameters of the atomizer 20 can be measured with high precision due to the large contact area between the atomizer 20 and the measuring module 30.

[0236] Electrically connecting the reference point of the measurement module 30 to the skirt 50 allows the reference point to be easily and reliably set to the same potential as the atomizing head 45.

[0237] 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 caused by deformation due to impact, or malfunctions of the turbine.

[0238] Measuring the acceleration of the atomizer 20 during its movement allows for the detection of impacts during that movement, thereby adapting to the trajectory of the robot 15 if necessary. For this purpose, impacts can be detected in a simple manner by comparing the acceleration value with a threshold.

[0239] Imbalances in the bowl can be detected by measuring the acceleration during the rotation of bowl 55.

[0240] Measuring the temperature of atomizer 20 allows for the detection of overcooling caused by the expansion of the jet used to shape the fluid F or the gas driving the turbine, thereby preventing the condensation of water vapor on atomizer 20 from having a detrimental effect on the quality of the parts to be coated with fluid F by interfering with atomization or by water droplets falling on the parts. Since skirt 50 represents most of the surface of atomizing head 45, measuring the temperature of skirt 50 provides reliable information indicating the condition of atomizer 20.

[0241] The microphone can also be used to detect imbalances in the bowl 55, such as deformation of the bowl 55 or spatial orientation obstructions relative to axis A1, from the noise emitted by the bowl 55 during its rotation.

[0242] In particular, Figure 5 A graph 250 shows the spectrum of noise measured during the rotation of the defective bowl 55 at 25,000 rpm. In particular, the amplitude A (in arbitrary units) of the frequency components of the measured noise is shown as a function of the frequency f (in arbitrary units).

[0243] Figure 6A graph 255 shows the 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 frequency components of the measured noise is shown as a function of frequency f. Thus, it appears that comparison of two spectra, particularly at thresholds of one or more differences, allows for the detection of the defective bowl 55, where each difference is the difference between amplitudes associated with the same frequency.

[0244] Integrating the receiving module 125 at the first station 35 allows for easy adaptation to existing equipment and enables the transfer of information from measurements without additional time loss during the cleaning of the atomizer 20. Using RF diagnostic messages also reduces the need for modifications to the device 10, as the trajectory of the atomizer 20 does not need to be altered to contact the electrical connector to transfer diagnostic messages. This limits the risk of arcing or contamination of the device 10.

[0245] On the other hand, if diagnostic messages are transmitted via electrical signals, the power consumption of the measurement module 30 is limited.

[0246] The presence of storage device 105 and its connection to station 35, particularly through inductive charging, further minimizes the need for regulation of device 10.

[0247] A second example of device 10 will now be described. Components that are exactly the same as in the first example will no longer be described. Only the differences will be highlighted.

[0248] Figure 7 A second example of device 10 is shown in the figure.

[0249] A second example of device 10 may include an atomizer 20 whose potential remains constant during operation, such as an atomizer 20 that is grounded during atomization.

[0250] The measurement module 30 is connected to the first station 35. In particular, the measurement module 30 is not mounted on or connected to the atomizer 20.

[0251] Robot 15 is able to move atomizer 20 relative to measurement module 30.

[0252] When the atomizer 20 is in a stationary position, the distance between the atomizer 20 and the measuring module 30 is less than or equal to 20 centimeters (cm). For example, the atomizer 20 is in contact with the first station 35, and particularly with the measuring module 30. Specifically, when the atomizer 20 is in a stationary position, the skirt 50 is in contact with the measuring module 30.

[0253] The measurement module 30 is configured to measure the values ​​of atomizer parameters when the atomizer 20 is in a stationary position.

[0254] The measuring module 30 is at least partially positioned around the axis A3 of the opening 140. In particular, when the atomizer 20 is in a stationary position, the measuring module 30 is at least partially positioned around the atomizer 20.

[0255] The housing 80 of the measuring module forms a ring that, for example, at least partially defines an opening 140 in a plane perpendicular to axis A3. This ring then forms, for example, the inner wall of the first station 35.

[0256] Alternatively, housing 80 forms a ring partially (e.g., at an angle of 240 degrees or less) around axis A3. Note that the positioning and shape of housing 80 can vary.

[0257] Specifically, each sensor 60 is attached to the ring. For example, each sensor 60 is carried by and attached to the ring.

[0258] For example, each sensor 60 is fixed to the wall 85 of the ring defining the opening 140. In particular, each sensor 60 is arranged radially outside the wall 85 of the ring defining the opening 140. Thus, the sensor 60 is protected against possible splashing and is electrically isolated from the rest of the device by the wall 85.

[0259] Temperature sensor 60 is configured, for example, to contact atomizing head 45, particularly skirt 50, when atomizer 20 is in a stationary position. Temperature sensor 60 extends through a ring formed by housing 80.

[0260] Each accelerometer 60 is configured to measure the acceleration value of the first station 35, and in particular the measurement module 30.

[0261] A method for measuring at least one parameter of atomizer 20, implemented by the second device example 10, will now be described.

[0262] The method includes an atomization step 220, a movement step 230, and a measurement step.

[0263] In atomization step 220, the atomizer 20, which is in its operating position, atomizes the fluid F.

[0264] In atomization step 220, the atomizing head has a second potential value.

[0265] For example, in a manner known per se, a potential difference equal to the second potential value is applied between the object P to be coated with fluid F and the atomizing head 45. In particular, object P is grounded.

[0266] To atomize the fluid F, the bowl 55 rotates about its axis, and the fluid F is injected into the bowl 55 to generate a fluid jet F. Additionally, a gas jet G is generated at the skirt to shape the fluid jet F.

[0267] In the movement step 230, the atomizer 20 is moved from the operating position to the stationary position by the robot 15. Additionally, the electrical potential of the atomizer 20 is changed from a second value to a first value.

[0268] During the measurement step, the bowl 55 rotates about its axis. For example, the control module 55 controls the rotation of the bowl 55.

[0269] During the rotation of the bowl, the acceleration value of the first station 35 is measured by each accelerometer 60.

[0270] In addition, when the atomizer 20 is in a stationary position, the temperature sensor 60 measures at least one temperature value of the atomizing head 45, especially the skirt 50.

[0271] The diagnostic values ​​are generated in a similar manner to the first device example, but the acceleration values ​​used are the acceleration values ​​of the first station 35 instead of the acceleration values ​​of the atomizer 20.

[0272] Placing the measurement module 30 in the first station 35 simplifies the measurement module 30, as it no longer needs to be connected to a high voltage. Furthermore, the measurement module 30 does not need to carry the energy storage device 105.

[0273] Furthermore, it is not necessary to modify the existing atomizer 20 to allow for parameter measurement.

[0274] In addition, the measurement module 30 can also transmit information in a wired analog manner or via a wired network, which has the advantage of being less affected by the surrounding electromagnetic constraints than wireless transmission.

[0275] Fault calculation and local storage are no longer required in the microprocessor within the embedded control module 70.

[0276] Finally, the measurement module 30 located in station 35 will not be affected by excessive spraying (i.e., fluid splashing) that may occur during application.

[0277] If the first station 35 is for cleaning and / or filling the atomizer 20, the device 10 can be easily obtained by making limited modifications to the existing equipment.

[0278] When the measurement module 30 forms a ring 80 around the atomizer 20 in the second position, a number of sensors 60 can come into contact with the atomizer 20, particularly when the sensors 60 are attached to the wall of the defining opening of the ring 80. Furthermore, by arranging the measurement module 30 in such a way that it performs measurements when the atomizer 20 is in its cleaned position, the measurement module 30 can be installed on a cleaning station 35 of a known type.

[0279] In particular, a microphone can be used to detect malfunctions of the bowl 55 even when there is no contact between the atomizer 20 and the station 35. This makes the measurement highly reliable because it does not depend on the support mass between the atomizer 20 and the station 35.

[0280] When the first station 35 is separated from the station used for cleaning and / or filling the atomizer 20, the first station 35 can be used to measure parameters of atomizers that would be incompatible with those too close to the cleaning station, such as the measurement of a second potential value. In fact, the first station 35 can be electrically isolated from the rest of the device 10, which is much easier than the isolation of the cleaning station.

[0281] Measuring the potential of the atomizer 20 allows for the detection of functional abnormalities related to the power supply of the atomizer head 45, particularly drift in the second potential value, which could lead to imperfect atomization if the second value is too low.

[0282] Using a station 35 that allows the measurement module 30 to be moved allows for this isolation to be performed easily, because in particular, when the measurement module 30 is brought closer to or into contact with the atomizer 20 to perform a measurement, the measurement module is likely to be moved away from other devices of the device 10.

[0283] Using station 35, which is fixed in the reference frame of device 10, simplifies device 10.

[0284] 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 arranged on the side of the first station 35. In this case, the resting position is not the clean position. In the clean position, where the measuring module 30 is at least partially housed in the opening 140, the atomizer 20 is cleaned and / or filled with fluid F.

[0285] Based on the dimensions of the atomizer 20 and the first existing station 35, this variant can be integrated more easily.

[0286] According to another variation, when the atomizer 20 is in a stationary position, the measurement module 30 does not contact the atomizer 20.

[0287] In this case, the measurement module 30, for example, does not have an accelerometer.

[0288] At least one sensor 60 is configured, for example, to measure the acceleration, velocity, or displacement of the atomizer 20 by means of the reflection of a laser beam on the outer surface of the atomizer, without contacting the atomizer 20.

[0289] Alternatively or additionally, at least one sensor 60 is configured to measure the noise emitted by the bowl 55 during its rotation.

[0290] Each temperature sensor 60 is configured, for example, to measure the temperature of the atomizer 20, particularly the temperature of the skirt 50, by measuring the infrared radiation emitted by the atomizer 20.

[0291] According to the third example of device 10, in addition to the first station 35, the device also includes a second station.

[0292] The first station 35 includes a measurement module 30. For example, the measurement module 30 is mounted on a movable arm of the first station 35, which is configured to move the measurement module between a first position and a second position. In the first position, when the atomizer is in a stationary position, the measurement module 30 is away from the atomizer 20, and in the second position, when the atomizer is in a stationary position, the measurement module 30 is in contact with the atomizer 20.

[0293] The second station is fixed, for example, relative to the base 37 of robot 15.

[0294] The second station has an opening 140, a cleaning nozzle 130, and a filling connector 135.

[0295] In addition to the sensor 60 already mentioned, the measurement module 30 also includes, for example, a sensor 60 configured to measure the potential value of the atomizer when the measurement module 30 comes into contact with the atomizer.

[0296] A method for measuring at least one parameter of atomizer 20, implemented by a third example of device 10, will now be described.

[0297] The method includes an atomization step 300, a first movement step 310, a measurement step 320, and an optional second movement step 330 and a maintenance step 340. Figure 8 The flowchart of the steps in this method is shown in the figure.

[0298] Note that the order of steps 300 to 340 can be changed.

[0299] In the atomization step 300, the atomizer 20, which is in its operating position, atomizes the fluid F.

[0300] In the atomization step 300, the atomizing head has a second potential value.

[0301] For example, in a manner known per se, a potential difference equal to the second potential value is applied between the object P to be coated with fluid F and the atomizing head 45. In particular, object P is grounded.

[0302] To atomize the fluid F, the bowl 55 rotates about its axis, and the fluid F is injected into the bowl 55 to generate a fluid jet F. Additionally, a gas jet G is generated at the skirt to shape the fluid jet F.

[0303] In the first movement step 310, the atomizer 20 is moved from the operating position to the stationary position by the robot 15. Additionally, if the measuring module 30 is movable, it is moved to its second position.

[0304] During the first moving step 310, the potential of the atomizer 20 is kept fixed at a second value by the base 40 of the atomizer 20.

[0305] During measurement step 320, at least one value of the potential of the atomizer 20 is measured, particularly the potential of the skirt 50. In particular, a second potential value is measured.

[0306] After measuring the potential value, the potential of the atomizer 20 is changed from the second value to the first value.

[0307] In measurement step 320, the bowl 55 is rotated about its axis. For example, the control module 55 controls the rotation of the bowl 55.

[0308] During the rotation of the bowl 55, the acceleration value of the measurement module 30 is measured by each accelerometer 60.

[0309] In addition, when the atomizer 20 is in a stationary position, the temperature sensor 60 measures at least one temperature value of the atomizing head 45, especially the skirt 50.

[0310] The diagnostic values ​​are generated in a manner similar to the first device example, wherein the acceleration values ​​used are from the first station 35 instead of from the atomizer 20.

[0311] After measurement step 320, the atomizer is moved by robot 15 to a cleaning position, where the atomizer 20 is at least partially accommodated in the opening 140 of the second station.

[0312] In maintenance step 340, the atomizer 20 is cleaned in a manner known per se and / or the reservoir is filled with fluid F.

[0313] The third example particularly allows for the measurement of potential, especially when the potential has a second value, even if that second value is very high compared to the rest of device 10. Because the measurement module 30 is not integrated into a station designed for cleaning the atomizer or filling the reservoir, but rather into a dedicated station 35, this station 35 is more easily isolated from the rest of device 10.

[0314] Depending on the variant, there may be at least two first stations 35. For example, one first station 35 may include a potential sensor 60, while another first station 35 or second station may include other sensors 60. This embodiment particularly limits the risk that the high potential of the atomizer 20 may damage other sensors 60 or related devices.

[0315] It should be noted that in the second or third example, the measurement of the potential value at station 35 is optional. Depending on the possible implementation, other parameters of the atomizer are set without measuring the potential value.

Claims

1. A device (10), comprising: An atomizer (20) configured as an atomizing fluid (F) includes: turbine, Fluid injector, Bowl (55), the bowl (55) being rotated by the turbine to atomize the fluid (F) as it is injected into the bowl (55) by the injector, and Used to generate a skirt (50) for making the atomized fluid (F) consistent. First stop (35) A measurement module (30) connected to the first station (35) includes: A ring (80) defining an opening (140) surrounded by the ring (80), having an inner wall (85) defining the opening (140) surrounded by the ring (80), and At least one sensor (60) is attached to the inner wall (85) of the ring (80). A robot (15) is configured to move the atomizer (20) between at least a first position and a second position in a predetermined reference frame. The atomizer (20) is configured to atomize the fluid (F) when it is in the first position, and when it is in the second position, to contact the first station (35) and define a distance 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. When the atomizer (20) is in the second position, it is at least partially contained within the opening (140), wherein at least one sensor (60) is configured to measure at least one value of a parameter of the atomizer when the atomizer (20) is in the second position. The at least one sensor is configured to measure at least one value of a parameter of the atomizer (20) when the atomizer (20) is in the second position, wherein the 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 the second position. The device (10) includes a first control module (25) configured to control the rotation of the bowl (55) when the atomizer (20) is in the second position, for detecting defects in the bowl (55) based on values ​​measured by the at least one sensor (60) during the rotation of the bowl (55).

2. The device according to claim 1, wherein, At least one sensor (60) is a microphone.

3. The device according to claim 1, wherein, The defect is the imbalance of the bowl (55).

4. The device according to claim 1, wherein, The atomizer (20) also includes at least one valve, which includes a needle 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.

5. The device of claim 4, further comprising a second control module (70) configured to calculate the duration of movement of the needle between its two positions based on the measured needle position value.

6. The device according to claim 1, wherein, The first station (35) is configured to clean the atomizer (20) with liquid when the atomizer (20) is in the second position, wherein the measurement module (30) is arranged in such a way that measurements are taken when the atomizer (20) is in the second position cleaned by the first station (35).

7. The device according to any one of claims 1 to 6, wherein, The device (10) includes a second station separate from the first station (35), and the robot (15) is also configured to move the atomizer (20) from one of the first position and the second position to a third position, wherein the second station is configured to clean the atomizer (20) with liquid when the atomizer (20) is in the third position.

8. The device according to claim 6, wherein, The liquid is a solvent.

9. The device according to claim 7, wherein, The liquid is a solvent.

10. The device according to claim 1, wherein, The first station (35) is fixed in the predetermined reference frame.

11. The device according to claim 1, wherein, At least one sensor (60) is configured to measure the temperature value of the atomizer (20).

12. The device according to claim 1, 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 fluid (F), said method being carried out by a device (10) according to any one of claims 1 to 6, said method comprising the steps of: - Install the measurement module (30) on the first station (35), - The fluid (F) is atomized (300) by the atomizer (20), the atomizer (20) being in the first position; and -The robot (15) moves the atomizer (20) between the first position and the second position (310). When the atomizer (20) is in the second position, at least one value of the parameter of the atomizer (20) is measured (320) by at least one sensor (60) of the measurement module (30) installed on the first station (35). The measurement (320) step includes: rotating the bowl (55) and detecting defects in the bowl (55) based on values ​​measured by at least one sensor (60) during the rotation of the bowl (55). The measurement (320) step includes: measuring at least one acceleration value of the first station (35) during the rotation of the bowl (55), and detecting the defect based on the measured acceleration value.

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

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

Images