A base material adjusting method capable of removing an already-existing coating film with one time construction, which is suitable in terms of prevention of health problems of operators and in terms of environmental protection, and capable of suppressing disposal costs of waste. The base material adjusting method includes a coating film removing step of removing an already-existing coating film of a work object of the repainting operation by a wet blast method, and a rust removing step of removing rust generated after the coating film removing step by a dry blast method, and rust inhibitor is not included in slurry used in the wet blast method in the coating film removing step.

A base material adjusting method capable of removing an already-existing coating film with one time construction, which is suitable in terms of prevention of health problems of operators and in terms of environmental protection, and capable of suppressing disposal costs of waste. The base material adjusting method includes a coating film removing step of removing an already-existing coating film of a work object of the repainting operation by a wet blast method, and a rust removing step of removing rust generated after the coating film removing step by a dry blast method, and rust inhibitor is not included in slurry used in the wet blast method in the coating film removing step.

Systems and methods for inspecting and cleaning a nozzle of a dispenser are disclosed. The systems may include a platform supporting a cleaning substrate. The cleaning substrate may have a plurality of hook structures configured to remove a material from the nozzle. The systems may also include a camera configured to capture an image of the nozzle and a controller configured to control the system. The methods may include providing a cleaning substrate having a plurality of hook structures, and moving at least one of the nozzle and the cleaning substrate relative to the other to remove a material from the nozzle. The methods may also include capturing an image of the nozzle after dispensing with a camera, processing the image to generate a value, utilizing the value to determine if the nozzle should be cleaned, and if the determination is that the nozzle should be cleaned, cleaning the nozzle.

The disclosure relates to a coating agent pump for conveying a coating agent in a coating installation, having a pump inlet, an inlet section, a pump outlet and an outlet section. The coating agent pump according to the disclosure additionally has an outlet-side circulation connection for discharging the coating agent into a circulation line that leads back to a paint supply. Furthermore, the disclosure comprises a corresponding coating installation and an associated operating method.

The disclosure relates to a coating agent pump for conveying a coating agent in a coating installation, having a pump inlet, an inlet section, a pump outlet and an outlet section. The coating agent pump according to the disclosure additionally has an outlet-side circulation connection for discharging the coating agent into a circulation line that leads back to a paint supply. Furthermore, the disclosure comprises a corresponding coating installation and an associated operating method.

A self-cleaning negative-pressure ejector at least comprises a suction chamber, a jet pipe and a flushing member. A side wall of the suction chamber has at least one suction port for communicating with a first fluid pipeline. An exit port of the jet pipe is disposed in the suction chamber and ejects a second fluid so that a negative pressure is generated in the suction chamber, a first fluid in the first fluid pipeline enters the suction chamber, and a first included angle is between a direction in which the first fluid being sucked into the suction chamber and an ejection direction of the second fluid. The flushing member optionally provides a third fluid to flush the suction chamber and/or the first fluid pipeline.

A painting device equipped with a painting head having multiple nozzles that discharge coating material toward an object of painting. The painting device includes a supply passage that supplies the coating material to the painting head, and a return flow passage that returns, to the upstream side of the supply passage. A portion of the coating material supplied to the painting head that was not discharged from the multiple nozzles is possessed by the painting head, wherein the supply passage, the painting head, and the return flow passage constitute a coating material circulation passage. The coating material circulation passage is divided into multiple segments, each of which contains at least one of the multiple circuit component parts arranged in the coating material circulation passage or the painting head, and wherein the coating material circulation passage allows the multiple segments to be cleaned individually.

A painting device equipped with a painting head having multiple nozzles that discharge coating material toward an object of painting. The painting device includes a supply passage that supplies the coating material to the painting head, and a return flow passage that returns, to the upstream side of the supply passage. A portion of the coating material supplied to the painting head that was not discharged from the multiple nozzles is possessed by the painting head, wherein the supply passage, the painting head, and the return flow passage constitute a coating material circulation passage. The coating material circulation passage is divided into multiple segments, each of which contains at least one of the multiple circuit component parts arranged in the coating material circulation passage or the painting head, and wherein the coating material circulation passage allows the multiple segments to be cleaned individually.

The disclosure relates to an applicator (RZ), in particular a rotary atomizer, for the application of a coating agent, in particular a two-component paint, comprising a first coating agent connection (SL) for feeding a first coating agent, in particular a basic resin of a two-component paint, a first coating agent strand (L1-L4), which extends in the applicator (RZ) from the first coating agent connection (SL) and carries the first coating agent, and a first valve (SLV1), which is arranged in the first coating agent strand (L1-L4) and controls the flow of the first coating agent, wherein the first valve (SLV1) can be controlled by a first control signal. It is proposed that a first pressure-relief valve (SLV1), which is actuated by its own medium, is arranged in the first coating agent strand (L1-L4) and, to avoid a problem being caused by excessive pressure, opens automatically when the pressure upstream of the first pressure-relief valve (SLV1) exceeds a certain maximum pressure.

The disclosure relates to an applicator (RZ), in particular a rotary atomizer, for the application of a coating agent, in particular a two-component paint, comprising a first coating agent connection (SL) for feeding a first coating agent, in particular a basic resin of a two-component paint, a first coating agent strand (L1-L4), which extends in the applicator (RZ) from the first coating agent connection (SL) and carries the first coating agent, and a first valve (SLV1), which is arranged in the first coating agent strand (L1-L4) and controls the flow of the first coating agent, wherein the first valve (SLV1) can be controlled by a first control signal. It is proposed that a first pressure-relief valve (SLV1), which is actuated by its own medium, is arranged in the first coating agent strand (L1-L4) and, to avoid a problem being caused by excessive pressure, opens automatically when the pressure upstream of the first pressure-relief valve (SLV1) exceeds a certain maximum pressure.