초록 ▼

An improvement is provided in a coating system including a dispenser, a coating outlet for delivering a coating material to a surface of a moving workpiece to which coating is to be applied in a desired pattern, and a dispensing control for producing control signals in a predetermined fashion for in

An improvement is provided in a coating system including a dispenser, a coating outlet for delivering a coating material to a surface of a moving workpiece to which coating is to be applied in a desired pattern, and a dispensing control for producing control signals in a predetermined fashion for initiating and terminating the release of coating material to the outlet. The improvement includes a wiping member selectively advanceable and retractable relative to the coating outlet for wiping excess coating material therefrom and a cleaning control responsive to predetermined control signals from the dispensing control for advancing and retracting the wiping member in a predetermined fashion.

대표청구항 ▼

An improvement in a coating system including dispensing means having at least one coating outlet for delivering a coating material to a surface of a moving workpiece to which coating is to be applied in a desired pattern, and dispensing control means for producing control signals in a predetermined

An improvement in a coating system including dispensing means having at least one coating outlet for delivering a coating material to a surface of a moving workpiece to which coating is to be applied in a desired pattern, and dispensing control means for producing control signals in a predetermined fashion for initiating and terminating the release of coating material to said outlet, said improvement comprising: outlet cleaning means including a wiping member selectively advanceable and retractable relative to said coating outlet between at least a first position wherein said wiping member completely covers said outlet and a second position wherein said wiping member does not cover or obstruct any part of said outlet, and cleaning control means responsive to said control signals from said dispensing control means for advancing and retracting said wiping member between said first and second positions in a predetermined fashion in accordance with said control signals; wherein said dispensing control means includes means for generating pulse signals comprising said control signals and having a frequency related in a predetermined fashion to the linear velocity of said workpiece relative to said outlet, wherein said cleaning control means includes drive means for driving said wiping member between said first and second positions for advancing said wiping member to said second position in response to the frequency of said pulse signals crossing a predetermined threshold frequency; and wherein said wiping member comprises an elongate flexible pad member; said cleaning means further including elongate guide means with a channel for slidably mounting said pad member for slidable movement between said first position and said second position.