Apparatus for monitoring the condition of filamentary belts in cigarette making machines and the like
AssigneeKorber AG
InventorPeter Pinck
Life of this patent
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Abstract
The presence of protruding filaments in a woven endless belt for the transport of tobacco or filter material in a machine of the tobacco processing industry is detected by one or more optoelectronic detectors. Signals which are generated by such detectors are evaluated to transmit a defect signal only when the detectors generate signals which were in fact initiated by protruding filaments rather than by projecting particles of tobacco or filter material, and when the number of such signals per length of the belt reaches a preselected value which warrants the generation of a defect signal.
Claims17
In a machine for making smokers' products, a driven foraminous belt conveyor which contains filaments and is arranged to transport fibrous matrial of the tobacco processing industry;
- guide means defining for the conveyor a predetermined path;
- and apparatus for monitoring the condition of the conveyor, comprising a monitoring unit including at least one detector having a radiation soucre arranged to emit at least one beam of radiation substantially transversely of said path and closely adjacent a portion of the conveyor so that a filament which projects from and is thus indicative of a defect of said portion of the conveyor influences said beam, and means for generating a signal in response to such influencing of the beam by the filament of the driven conveyor.
In a machine for making smokers' products, a driven foraminous belt conveyor which contains filaments and is arranged to transport fibrous material of the tobacco processing industry;
- guide means defining for the conveyor a predetermined path;
- and apparatus for monitoring the condition of the conveyor, comprising a monitoring unit including at least one detector having a radiation source arranged to emit at least one beam of radiation substantially transversely of said path and closely adjacent a portion of the conveyor so that a filament which projects from and is thus indicative of a defect of said conveyor influences said beam, means for generating a signal in response to such influencing of the beam by the filament of the driven conveyor, and control means for verifying the authenticity of said signal.
Dependencies are inferred from the claim text.