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公开(公告)号：US11511291B2
公开(公告)日：2022-11-29
申请号：US16649236
申请日：2018-09-27
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure relates to an applicator, in particular a printhead, for applying a coating agent, in particular a paint, to a component, in particular a motor vehicle body component or an add-on part for a motor vehicle body component, having at least one nozzle row with a plurality of nozzles for dispensing the coating agent in the form of a coating agent jet, the nozzles are arranged one behind the other in a nozzle plane along the nozzle row at a specific nozzle spacing, and having a plurality of actuators for controlling the release of coating agent through the individual nozzles, the actuators each having an outer dimension along the nozzle row. The disclosure provides that the nozzle distance between the adjacent nozzles of the nozzle row is smaller than the outer dimension of the individual actuators along the nozzle row.
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公开(公告)号：US20220072570A1
公开(公告)日：2022-03-10
申请号：US17530707
申请日：2021-11-19
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure concerns an applicator (e.g. print head) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having a nozzle chamber with a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing during operation through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent during operation. The print head further comprises a plurality of slidable valve needles associated with the individual nozzles and selectively opening or closing the respective nozzle depending on the position of the valve needles. Furthermore, the print head according to the disclosure contains an actuator chamber for receiving actuators for displacing the valve needles. In addition, the applicator according to the disclosure has a sealing element which fluidically separates the actuator chamber from the nozzle chamber in order to avoid contamination of the actuator chamber with the coating agent in the nozzle chamber. The disclosure provides that the sealing element is designed such that the individual valve needles can be displaced independently of one another without a displacement of one of the valve needles impairing the opening and closing of the nozzles at the adjacent valve needle.
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公开(公告)号：US11207698B2
公开(公告)日：2021-12-28
申请号：US16649226
申请日：2018-03-07
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure concerns an applicator (e.g. print head) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having a nozzle chamber with a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing during operation through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent during operation. The print head further comprises a plurality of slidable valve needles associated with the individual nozzles and selectively opening or closing the respective nozzle depending on the position of the valve needles. Furthermore, the print head according to the disclosure contains an actuator chamber for receiving actuators for displacing the valve needles. In addition, the applicator according to the disclosure has a sealing element which fluidically separates the actuator chamber from the nozzle chamber in order to avoid contamination of the actuator chamber with the coating agent in the nozzle chamber. The disclosure provides that the sealing element is designed such that the individual valve needles can be displaced independently of one another without a displacement of one of the valve needles impairing the opening and closing of the nozzles at the adjacent valve needle.
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公开(公告)号：US20200298254A1
公开(公告)日：2020-09-24
申请号：US16649217
申请日：2018-09-20
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure concerns an applicator (e.g. printhead) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having at least one nozzle row with a plurality of nozzles for dispensing the coating agent in the form of a jet in each case, the nozzles being arranged along the nozzle row and in a common nozzle plane, and having a plurality of actuators for controlled release or closure of the nozzles. The disclosure provides that the individual actuators each have an outer dimension along the nozzle row which is greater than the nozzle distance along the nozzle row.
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公开(公告)号：US20200246814A1
公开(公告)日：2020-08-06
申请号：US16649226
申请日：2018-03-07
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure concerns an applicator (e.g. print head) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having a nozzle chamber with a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing during operation through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent during operation. The print head further comprises a plurality of slidable valve needles associated with the individual nozzles and selectively opening or closing the respective nozzle depending on the position of the valve needles. Furthermore, the print head according to the disclosure contains an actuator chamber for receiving actuators for displacing the valve needles. In addition, the applicator according to the disclosure has a sealing element which fluidically separates the actuator chamber from the nozzle chamber in order to avoid contamination of the actuator chamber with the coating agent in the nozzle chamber. The disclosure provides that the sealing element is designed such that the individual valve needles can be displaced independently of one another without a displacement of one of the valve needles impairing the opening and closing of the nozzles at the adjacent valve needle.
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公开(公告)号：US20200246813A1
公开(公告)日：2020-08-06
申请号：US16649236
申请日：2018-09-27
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure relates to an applicator, in particular a printhead, for applying a coating agent, in particular a paint, to a component, in particular a motor vehicle body component or an add-on part for a motor vehicle body component, having at least one nozzle row with a plurality of nozzles for dispensing the coating agent in the form of a coating agent jet, the nozzles are arranged one behind the other in a nozzle plane along the nozzle row at a specific nozzle spacing, and having a plurality of actuators for controlling the release of coating agent through the individual nozzles, the actuators each having an outer dimension along the nozzle row. The disclosure provides that the nozzle distance between the adjacent nozzles of the nozzle row is smaller than the outer dimension of the individual actuators along the nozzle row.
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