EP3849710A1 - Pistolet pulvérisateur, système d'application de matériau et procédé de fonctionnement dudit système - Google Patents

Pistolet pulvérisateur, système d'application de matériau et procédé de fonctionnement dudit système

Info

Publication number
EP3849710A1
EP3849710A1 EP19768753.6A EP19768753A EP3849710A1 EP 3849710 A1 EP3849710 A1 EP 3849710A1 EP 19768753 A EP19768753 A EP 19768753A EP 3849710 A1 EP3849710 A1 EP 3849710A1
Authority
EP
European Patent Office
Prior art keywords
spray gun
transmitting
receiving device
signal transmission
carrying part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19768753.6A
Other languages
German (de)
English (en)
Inventor
Norbert Maier
Jens Brose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SATA GmbH and Co KG
Original Assignee
SATA GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SATA GmbH and Co KG filed Critical SATA GmbH and Co KG
Publication of EP3849710A1 publication Critical patent/EP3849710A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • B05B12/006—Pressure or flow rate sensors
    • B05B12/008—Pressure or flow rate sensors integrated in or attached to a discharge apparatus, e.g. a spray gun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/63—Handgrips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • B05B7/068—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet the annular gas outlet being supplied by a gas conduit having an axially concave curved internal surface just upstream said outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • Spray gun material application system and method for its operation
  • the invention relates to a spray gun for atomizing, in particular for compressed air-assisted atomization, and for applying a coating material, in particular a lacquer, the spray gun having a material-carrying part with a material feed, a nozzle head and a material channel device, by means of which a coating material supplied to the material feed heads the nozzle can be supplied, the spray gun additionally having a non-material-carrying part and a transmitting and / or receiving device for wireless signal transmission.
  • the invention relates to a material application system with such a spray gun and a method for operating a material application system.
  • a paint gun mentioned at the outset or a material application system with such a paint gun have become known, for example, from WO 2012/052255 A1.
  • the publication describes a material application system in the form of a paint application system with one or more receiving units for wireless signal transmission between components of the paint application system, one of the components being a spray gun with a detection unit for detecting operating parameters of the spray gun and / or environmental parameters and a transmitter unit for wireless transmission is the operating parameter and / or environmental parameter to the receiving unit.
  • the present invention has set itself the task of further developing the known spray gun or the known material application system in such a way that a spray gun or a material application system results that is characterized by increased functional reliability and an ease of use optimized for use in paint booths.
  • the spray gun according to the invention is used to atomize and apply a coating material, in particular a liquid coating material. It has a material-carrying part with a material feed, a nozzle head and a material channel device, by means of which a (liquid) coating material supplied to the material feed can be fed to the nozzle head.
  • the material-carrying part of the spray gun is preferably designed in several parts. In particular, this is designed as a separate interchangeable part into which the material channel device opens.
  • the material channel device and the material feed are, for example, inseparable from a common component, in particular a base body of the spray gun or the material-carrying part of the base body.
  • the spray gun has a non-material-carrying part, which is formed, for example, by a different part of the base body than the material-carrying part.
  • the non-material-carrying part can preferably also be designed as a separate component for the material-carrying part of the spray gun.
  • the non-material-carrying part can be provided as a handling part. For this purpose, it can have connection means for handling devices, such as handling robots, and / or a handle or grip elements for a painter.
  • the spray gun has a transmitting and / or receiving device for wireless signal transmission, which is spaced from the material-carrying part and is assigned to the non-material-carrying part.
  • the transmitting and / or receiving device is consequently not integrated in the material-carrying part or is not arranged directly adjacent to the material-carrying part.
  • the arrangement of the transmitting and / or receiving device increases the risk of exposure of the transmitting and / or receiving device to the coating material and thus damage or impairment of the coating material Sending and / or receiving device significantly reduced.
  • the coating materials usually used with a spray gun such as paints in particular, require careful cleaning of the material-carrying part of the spray gun, both mechanically and using solvents.
  • the arrangement of the transmitter and / or receiver device according to the invention reduces the risk of damage or impairment of the transmitter and / or receiver device when cleaning the spray gun
  • the transmitting and / or receiving device is arranged in or on the non-material-carrying part, in particular integrated and / or encapsulated in the non-material-carrying part.
  • the spray gun according to the invention is preferably a flow cup gun, i. H. the material feed has a connection device for a flow cup.
  • the spray gun can also be designed as a spray gun with pressure-supported material feed (e.g. boiler or robot gun) or have a material feed that is suitable for connecting a material hose.
  • the transmitting and / or receiving device is preferably suitable for bidirectionally wireless data transmission. In this case, it is consequently a transmitting and receiving device.
  • Explosive gas mixtures can occur during painting. Therefore, strict requirements for explosion protection apply in particular in painting booths and for all devices used there.
  • the transmitting and / or receiving device is therefore preferably designed such that these requirements are met. In particular, this takes place by means of an appropriate encapsulation and / or a corresponding structure of the electronic components.
  • the non-material-carrying part is preferably designed as a handling part.
  • the non-material-carrying part has, for example, a handle, an actuating lever of the spray gun preferably being articulated on the material-carrying part.
  • the spray gun can also be actuated, for example, by a compressed air valve operated by hand or via an external control connection.
  • the spray gun is provided with a compressed air connection, from which a compressed air duct system for
  • Material application nozzle leads.
  • it is consequently a spray gun that atomizes the coating material using compressed air.
  • It is preferably an HVLP spray gun or a compliant spray gun or a spray gun, which, depending on the choice of the nozzle head, can be designed as an HVLP or compliant spray gun.
  • a variant has proven itself in which the compressed air connection is arranged on the non-material-carrying part.
  • the compressed air is preferably conducted via the non-material-carrying part to the material-carrying part and to the nozzle head where the compressed air is used to atomize the coating material
  • the spray gun comprises, in addition to the transmitting and / or receiving device, one or more electronic components which are connected directly or indirectly to the transmitting and / or receiving unit.
  • electronic components include one or more sensor units, one or more actuator units, one or more display units, a data storage unit, a data processing unit and / or an energy storage unit.
  • One variant is characterized by simple integration into a modular, standardized network in which one or more sensor units Spray guns in semiconductor design are provided, which use the standard protocol MQTT for the transmission of sensor values and which have the hardware interface PC.
  • one or more sensor units are provided for measuring the material, atomizing or nozzle internal pressure, the air pressure in the horn compressed air area or the transport air pressure.
  • a sensor unit for measuring the flow of material or pressure can be advantageous.
  • a spray gun can preferably be provided with a sensor unit that detects actuation of an actuating lever (trigger) or a sensor unit for determining the gun position and / or movement.
  • one or more sensor units for determining environmental parameters such as, for. B. the air pressure, the
  • Air humidity, the air speed and / or the ambient temperature can be provided on the spray gun.
  • the sensor units for determining environmental parameters can also be provided separately from the spray gun in connection with another module of a network in which the spray gun is integrated.
  • One or more controllable actuator units are preferably provided on the spray gun. In the case of a particularly preferred one
  • the spray gun has one or more actuator units in the form of a pressure control valve, which are connected directly or indirectly to the transmitting and / or receiving device.
  • a sensor unit for measuring the atomizing air pressure and an actuator unit in the form of a pressure control valve for adjusting the atomizing pressure are provided on the spray gun, for example.
  • Overall there is a control loop for the pressure of the Atomizing compressed air is formed in the spray gun, with which the pressure is measured directly at the spray gun and can be regulated to a desired setpoint. This is particularly advantageous in the case of spray guns for liquid paints, since the quality of the paint application is largely dependent on the atomization and therefore on the head of the nozzle
  • Atomization pressure depends.
  • a control loop for another setting parameter such as. B. the pressure of the horn compressed air can be provided. If necessary, three or more control loops can also be provided for further setting parameters
  • the spray gun has a display unit which is connected directly or indirectly to the transmitting and / or receiving device, and which, for. B. displays the following information: measured sensor values from sensor units of the spray gun or other modules; Setpoints for setting and / or
  • the spray gun can be provided with a haptic or acoustic information or alarm function (e.g. vibration alarm).
  • a haptic or acoustic information or alarm function e.g. vibration alarm.
  • the information listed and others can, for example, also be displayed on a display unit in connection with another module of a network in which the spray gun is integrated.
  • the spray gun preferably also has a data processing unit (CPU) for controlling the transmitting and / or receiving device, the sensor and / or the actuator units and for processing data from these units.
  • a data processing unit CPU
  • an energy storage unit is provided which can be charged in particular without contact.
  • the spray gun can also have a USB interface be provided, which is directly or indirectly connected to one or more of the electronic components or the transmitting and / or receiving device.
  • a USB interface be provided, which is directly or indirectly connected to one or more of the electronic components or the transmitting and / or receiving device.
  • the electronic components are preferably also spaced from the material-carrying part and assigned to the non-material-carrying part.
  • the transmitting and / or receiving unit and one or more of the electronic components are designed as an electronics module.
  • the electronics module comprises a circuit board on which some of the components are arranged.
  • the electronic components are preferably designed as SMD components which are arranged on an SMD circuit board, which results in a space-saving and inexpensive design of the electronic module.
  • the transmitting and / or receiving device is detachably connected to the spray gun.
  • the transmitting and / or receiving device can, for example, be removed before cleaning the spray gun and then reconnected to the cleaned spray gun. This prevents damage during the cleaning process.
  • the cleaning of the rest, in particular of the material-carrying part is simplified since no consideration has to be given to the transmitting and / or receiving device.
  • the transmitting and / or receiving device is preferably part of a removable electronic module with one or more further electronic components, which is integrated, for example, in the handle of the spray gun.
  • the transmitting and / or receiving device or the electronics module can also be integrated into a handle of the spray gun, which as a whole can be removed as a unit from the rest of the spray gun, in particular the material-carrying part of the spray gun.
  • a variant of the spray gun is characterized by a particularly advantageous air pressure measurement, in which at least one pressure measuring channel is provided, which is led from a compressed air chamber in the material-carrying part of the spray gun to an electronic component in the form of a pressure sensor, the pressure sensor being spaced apart from the material-carrying part and being assigned to the non-material-carrying part.
  • the pressure sensor belongs to an electronic module with the features explained above.
  • the pressure measuring channel is preferably formed at least in sections by a bore or a channel in the material-carrying and / or the non-material-carrying part of the spray gun.
  • a pressure measuring channel can also be formed by a hose or the like.
  • the spray gun has a round / wide jet setting device, by means of which a changeable division of a compressed air supply into an atomizing compressed air and a horn compressed air takes place, which are each fed to the nozzle head. Downstream of the round / wide jet setting device, there is at least one atomizing and one horn compressed air area.
  • the compressed air chamber from which a pressure measuring channel is led to a pressure sensor, is preferably formed by the atomizing compressed air area or arranged in the atomizing compressed air area.
  • a (further) compressed air chamber from which a (further) pressure measuring channel is led to a (further) pressure sensor, is formed by the horn compressed air area.
  • one or more pressure chambers, from which a pressure measuring channel is led to a pressure sensor directly adjoins the exchangeable nozzle heads. This compressed air chamber or these compressed air chambers are preferably arranged in the atomizing compressed air area and / or horn air area.
  • a spray gun in which a transmitting and / or receiving device for wireless signal transmission after a first Radio standard, for example Bluetooth, is designed and, in addition to wireless signal transmission, is designed according to a second radio standard, for example LoRawan, the second radio standard being suitable for wireless transmission of signals over a greater range and in particular also through the walls of paint booths than the first Radio standard.
  • a first Radio standard for example Bluetooth
  • a second radio standard for example LoRawan
  • the second radio standard being suitable for wireless transmission of signals over a greater range and in particular also through the walls of paint booths than the first Radio standard.
  • it is e.g. B. in the second radio standard to a radio standard, which is characterized by a larger free field range than the first radio standard.
  • the second radio standard is characterized by a greater range in the painting environment. It has greater penetration of paint booth walls and similar obstacles.
  • the first radio standard Bluetooth LE 5.0 and the second radio standard LoRawan at 433/866 MHz or 910 MHz have proven their worth in practice.
  • Other possible radio standards are, for example, WiFi, DECT ULE, EnOcean, ZigBee or Z-Wave.
  • the transmission and / or reception device for the signal transmission has an antenna for each of the different radio standards.
  • the invention also relates to a material application system with a spray gun with the features explained above and below, the material application system having at least one module separate from the spray gun, which module has a transmitting and / or receiving device for wireless signal transmission from or to the transmitting and / or Receiving device of the spray gun includes.
  • the material application system preferably forms a modular, ATEX-approved network for recording and processing relevant parameters at all conceivable points in the painting process.
  • the aim of processing the information from several modules networked in this way in a central unit is also extended planning options (preventive maintenance, recording of Operating and consumption data, recording of replacement needs for wearing parts, etc.).
  • By integrating spray guns and other products involved in the painting process a variety of different information and data can be determined, transmitted and evaluated (e.g. filter saturation status, filter pressure values, gun setting, material pressure, throughput of air and / or material, temperatures of materials and environment, air humidity, operating times of guns, consumption values for material and / or compressed air, state of charge, time, summation of the operating time, etc.).
  • a wirelessly networked material application system which is advantageously matched to the conditions of painting processes results from the material application system having at least two modules separate from the spray gun, each of which has a transmitting and / or receiving device for wireless signal transmission from or to the transmitting and / or Include receiving device of the spray gun.
  • One of the modules represents a near-field module, in particular a portable near-field module, for use in a painting booth and for signal transmission according to a first radio standard from or to the transmitting and / or receiving device.
  • another of the modules is designed as an area module, in particular a stationary area module, for use outside of a painting booth for signal transmission according to a second radio standard from or to the transmitting and / or receiving device.
  • the second radio standard is suitable for signal transmission over a greater range than the first radio standard, in particular the second radio standard is suitable for signal transmission from inside a painting cabin through a cabin wall to the outside or vice versa.
  • a wrist watch, a wall clock, a tablet, a pair of smart glasses, a smartphone, a are preferred examples of the design of the near field module To call data logger or similar.
  • a near-field module could possibly also be designed as an ATEX-compliant notebook. However, standard notebooks are not ATEX-compliant.
  • the near field module is particularly preferred as a wristwatch.
  • the wristwatch can be used to display pressure values.
  • the watch preferably offers the possibility of entering setpoints for setting parameters of the spray gun.
  • the watch can provide acoustic, optical or haptic (vibration) alarm or notification functions
  • the area module is characterized in particular by the fact that it is suitable for integration into a central network (possibly with an Internet interface).
  • a data processing system such as. B. suitable a PC.
  • all functions of the PC can also be used for the network of the material application system, such as storing, processing, entering or forwarding data, in particular also to connected networks (wireless, by cable, by USB, by email, by SMS, etc.) .
  • the climate data currently available at the place of use can also be obtained via the Internet and taken into account.
  • the transmitting and / or receiving device of the area module can preferably be designed in addition to the signal transmission according to the first radio standard. This makes it possible for the area module to communicate with other modules of the network located in the vicinity of the area module.
  • the area module can communicate with one or more near-field modules if they are e.g. B. get out of the paint booth in the vicinity of the area module.
  • the invention relates to a method for operating a material application system, in which the signal transmission between the transmitter and / or receiver device of the spray gun and the transmitter and / or receiver device of the separate module or the transmitter and / or receiver devices of the separate modules Information is transmitted regarding proposals for setting parameters or other operating parameters of the spray gun for a coating task and / or measured values of setting parameters or other operating parameters of a coating task carried out with the spray gun.
  • Information to be transmitted for example, a suggestion for a nozzle type to be used (HVLP, Compliant etc.) or the nozzle size should also be mentioned.
  • suggestions for setting parameters or other operating parameters of the coating task with the spray gun are automatically determined on the basis of an identification of the coating material, for example by means of a bar code reader, for an upcoming coating task with the spray gun and preferably on the basis of further operating and / or or environmental parameters.
  • the suggestions are transmitted from the separate module or from the separate modules to the spray gun and / or vice versa by means of the transmitting and / or receiving devices.
  • Fig. 1 is a spray gun with a removable electronics module, the one
  • FIG. 2 shows a sectional illustration of the front section of the spray gun according to FIG. 1,
  • Fig. 3 shows the schematic structure of a wireless network
  • a hand-held spray gun 1 is shown for compressed air-assisted atomization and application of a coating material.
  • the spray gun 1 is designed as an HVLP spray gun. Alternatively, it could also be designed as a compliant spray gun.
  • the spray gun 1 comprises a base body 2 with a material-carrying part 3 and a non-material-carrying part 4, which is designed as a handling part with a handle 5 for a painter.
  • An operating lever 6 is pivotally attached to the material-carrying part 3.
  • a compressed air connection 7 is provided for, for example, a compressed air supply hose, not shown.
  • compressed air supplied is guided by means of a compressed air line system within the spray gun via a round / wide jet setting device 8 to a nozzle head 9 of the spray gun 1.
  • the round / wide jet setting device 8 is used to adjust the division of the compressed air supplied into an atomizing compressed air and a horn compressed air, which are fed separately to the nozzle head 9. Downstream of the round / wide jet setting device 8, therefore, at least one atomizing and one horn compressed air area 10, 11 (FIG. 2) form in the material-carrying part 3 of the spray gun 1.
  • the material-carrying part 3 has a material feed 12 designed as a gravity cup connection. Furthermore, the material-carrying part 3 of the spray gun 1 is provided with the interchangeable nozzle head 9. Under the influence of gravity and due to suction from the atomizing air emerging at the nozzle 9, the coating material, for. B. paint, via a material channel device 13 ( Figure 2) from a flow cup connected to the flow cup connection to the nozzle head 9.
  • the spray gun 1 also has an electronics module 14 integrated in the handle 5.
  • the electronics module 14 is designed to be removable, so that it is, for. B. can be temporarily removed for cleaning the spray gun 1 with solvent.
  • the entire handle 5 can also be designed to be removable as a unit from the upper part of the spray gun 1, which comprises the material-carrying part 3.
  • the electronics module 14 is spaced from the material-carrying part 3 of the spray gun 1 and assigned to the non-material-carrying part 4.
  • the electronics module 14 includes, among other things, a transmitting and / or receiving device 15 for wireless signal transmission, which is indicated in FIG.
  • the transmitting and / or receiving device 15 is designed for wireless signal transmission according to two different radio standards.
  • Bluetooth LE 5.0 is used as the first find standard.
  • LoRawan is used as the second radio standard at 433/866 MHz or 910 MHz.
  • the second radio standard is suitable for the wireless transmission of signals over a longer range and, if necessary, due to existing obstacles (such as the wall of a paint booth) than the first radio standard.
  • the transmitting and / or receiving device 15 is provided for each of the two radio standards with an antenna housed in the spray gun 1.
  • the electronic module 14 has a plurality of electronic components which are connected directly or indirectly to the transmitting and / or receiving unit 15.
  • the electronic module 14 thus comprises two pressure sensor units, a data storage unit, a data processing unit (CPU) and an energy storage unit in the form of a non-contact rechargeable battery.
  • the charging coil 16 of the battery is indicated in FIG.
  • the electronics module 14 comprises a circuit board on which u. a. the pressure sensor units designed as SMD components, a data storage unit and the data processing unit (CPU) are applied.
  • the components, in particular the sensors, do not have to be arranged directly on the circuit board, but they can also be separated and wired from the circuit board or connected wirelessly to the circuit board or to components on the circuit board or to other components or units separated from the circuit board his.
  • the pressure sensor units or pressure sensors are used to measure the air pressure in two different pressure chambers 17, 18 in the material-carrying part 3 of the spray gun 1.
  • the pressure chambers 17, 18, each of which one Pressure measuring channel 19, 20 to one of the pressure sensors is shown in FIG. 2, in which the front section of the spray gun 1 is shown in section.
  • the replaceable nozzle head 9 is screwed onto a front section of the base body 2 of the spray gun 1.
  • a section of the material channel device 13 is shown, which heads 9 in the nozzle heads.
  • the nozzle head 9 comprises a screwed-in material nozzle 21 surrounded by an air nozzle arrangement 22 which forms an outlet gap 23 for the atomizing air and is provided with two horns 24 opposite it with horn air nozzles 25.
  • the air nozzle arrangement 22 is exchangeably attached to the base body 2 of the painting nozzle 1 by means of an air nozzle ring 26.
  • a baffle plate 27 is fixedly connected to the material nozzle 21 and is also removed when the nozzle head 9 is removed
  • the first compressed air chamber 17 is formed by the atomizing compressed air area 10 or is arranged in the atomizing compressed air area 10.
  • the second compressed air chamber 18 is formed by the horn compressed air region 11 or arranged in the horn compressed air region 11. Both compressed air chambers 17, 18 are directly adjacent to the nozzle heads 9, d. H. part of the wall of the
  • Pressure chambers 17, 18 are formed by the nozzle head 9.
  • the pressure measurement channels 19, 20 indicated in FIG. 2 are formed as a bore in the material-carrying and non-material-carrying parts 3, 4 of the spray gun 1 and open in the electronics module 14.
  • the result is a precise pressure measurement of the atomizing compressed air and the horn compressed air in the immediate vicinity of the atomizing process.
  • the pressure sensors are, however, spaced apart from the material-carrying part 3 of the spray gun 1 and are therefore well protected in the electronics module 14, which is arranged on the handle 5.
  • the measured values of the pressure sensors can, for example, be saved by the data storage unit
  • Data processing unit processed and by means of the transmission and / or Receiving device 15 can be transmitted to another module of the material application system 28.
  • the material application system 28 has, for. B. two spray guns 1 according to Figure 1, each provided with an electronics module 14.
  • a portable near-field module 30, which is designed as a wristwatch, is also provided within a painting booth 29.
  • the wristwatch can be worn by a painter who works with the two spray guns 1.
  • the wristwatch is suitable for bidirectional signal transmission with spray guns 1 using the Bluetooth LE 5.0 radio standard. It has a display by means of which different data and information can be displayed. For example, the pressure values measured by the pressure sensors in the spray guns 1 can be displayed.
  • the watch also offers the option of entering setpoints, e.g. B. for the measured pressures and an acoustic, optical or haptic (vibration) alarm or notification function if the measured actual value (too much) deviates from a predetermined setpoint.
  • a stationary area module 31 (gateway), which is suitable for bidirectional signal transmission with the two spray guns 1 according to the LoRawan radio standard, is arranged outside the spray booth.
  • the area module 31 is, for example, internet-compatible, has a powerful CPU and a display. It is connected to a PC 32, on which various software applications can be installed, which evaluate data transmitted by the spray guns 1 or generate data for transmission to the spray guns 1.
  • the area module 31 can be connected to a mobile phone 33, a tablet, etc., on which various software applications can also be installed, which evaluate data transmitted by the spray guns 1 or generate data for transmission to the spray guns 1.
  • the bidirectional signal transmission between the mobile phone 33 etc. and the area module 31 takes place according to the first radio standard (Bluetooth). If the near-field module 30 comes from the painting booth 29 into the vicinity of the area module 31, this can also receive or transmit data / information from the area module 31 according to the first radio standard (Bluetooth).
  • information is transmitted between the transmitting and / or receiving device 15 of the spray guns 1, the near field module and the area module, regarding suggestions for setting parameters or other operating parameters of the spray gun 1 for a coating task and / or measured values of setting parameters or other operating parameters of a coating task carried out with the spray gun 1.
  • a paint for an upcoming car refinishing can be identified by means of a barcode reader which is connected to the network.
  • a software application installed on the PC 32 reads the information from a paint data sheet stored in a database. Based on the information in the data sheet and z. B. taking into account the currently measured environmental parameters in the painting booth 29, suggestions for the choice of nozzles and (target values) for the pressure of the atomizing compressed air or the horn compressed air are determined. The suggestions (target values) are transmitted to the spray gun (s) 1 and gffs. from there to the watch for display.
  • the described spray gun, the described material application system and the described method for operating a material application system Can be used in particular in the industrial sector, ie it can be integrated or used in non-hand-held automatic or robot guns. It is also possible to integrate components into existing networks (Industry 4.0, digitization), for example in company networks, to enable data exchange between different departments or different hierarchies. As an alternative or in addition, it may be possible to integrate components into a network with a connection to a facility located outside the company's own operations in order to enable data exchange with other companies, authorities or other facilities or persons. It can be, for example, suppliers, customers, partners, control bodies.
  • data from a paint shop can be sent to a supplier of paint, painting tools, in particular spray guns, or spare parts, in particular nozzle sets for spray guns or cartridges for filters, in order to enable preventive maintenance or the delivery of a spare part based on the recorded operating data.
  • a supplier of paint, painting tools, in particular spray guns, or spare parts, in particular nozzle sets for spray guns or cartridges for filters in order to enable preventive maintenance or the delivery of a spare part based on the recorded operating data.
  • it can also be provided to send data to a customer so that the customer can track the status of his painting job.
  • the components can be integrated via LAN, WLAN or other wired or wireless transmission technologies, for example.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Spray Control Apparatus (AREA)
  • Selective Calling Equipment (AREA)

Abstract

L'invention concerne un pistolet pulvérisateur (1), en particulier pour la pulvérisation assistée par air comprimé, et l'application d'un matériau de revêtement, en particulier d'une peinture, ledit pistolet pulvérisateur comprenant une partie d'acheminement de matériau (3), une partie de non acheminement de matériau (4) et un dispositif d'émission et/ou de réception (15) pour la transmission de signaux sans fil. Pour augmenter la sécurité de fonctionnement et pour une maniabilité optimale dans l'environnement de l'application du matériau de revêtement, le dispositif d'émission et/ou de réception (15) pour la transmission de signaux sans fil se trouve à distance de la partie d'acheminement de matériau (3) et est associé à la partie de non acheminement de matériau (4). En variante ou en complément, on obtient une sécurité de fonctionnement accrue par le fait que le dispositif d'émission et/ou de réception (15) pour la transmission de signaux sans fil est conçu selon deux normes radioélectriques différentes. L'invention concerne en outre un système d'application de matériau pourvu d'un tel pistolet pulvérisateur (1) ainsi qu'un procédé pour le faire fonctionner.
EP19768753.6A 2018-09-10 2019-09-09 Pistolet pulvérisateur, système d'application de matériau et procédé de fonctionnement dudit système Pending EP3849710A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018122004.9A DE102018122004A1 (de) 2018-09-10 2018-09-10 Lackierpistole, Materialauftragssystem und Verfahren zu dessen Betrieb
PCT/EP2019/074000 WO2020053153A1 (fr) 2018-09-10 2019-09-09 Pistolet pulvérisateur, système d'application de matériau et procédé de fonctionnement dudit système

Publications (1)

Publication Number Publication Date
EP3849710A1 true EP3849710A1 (fr) 2021-07-21

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EP19768753.6A Pending EP3849710A1 (fr) 2018-09-10 2019-09-09 Pistolet pulvérisateur, système d'application de matériau et procédé de fonctionnement dudit système

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Country Link
US (1) US20220048054A1 (fr)
EP (1) EP3849710A1 (fr)
JP (1) JP2022500245A (fr)
CN (1) CN112672830A (fr)
CA (1) CA3109825A1 (fr)
DE (1) DE102018122004A1 (fr)
WO (1) WO2020053153A1 (fr)

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DE112018007865A5 (de) 2018-08-01 2021-07-15 Sata Gmbh & Co. Kg Düsensatz für eine Spritzpistole, Spritzpistolensystem, Verfahren zum Ausgestalten eines Düsen-Moduls, Verfahren zur Auswahl eines Düsen-Moduls aus einem Düsensatz für eine Lackieraufgabe, Auswahlsystem und Computerprogrammprodukt
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Also Published As

Publication number Publication date
CA3109825A1 (fr) 2020-03-19
WO2020053153A1 (fr) 2020-03-19
DE102018122004A1 (de) 2020-03-12
JP2022500245A (ja) 2022-01-04
CN112672830A (zh) 2021-04-16
US20220048054A1 (en) 2022-02-17

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