Cleaning device for background rollers of color sorters

Abstract

The invention relates to the technical field of color sorter cleaning, in particular to a cleaning device for a background roller of a color sorter. The cleaning device comprises the background roller which is arranged on a rack in a rotating mode. A scraping bar which is made of soft rubber materials is arranged on the side, close to the discharging end of a conveyer belt, of the background roller, and the upper edge of the scraping bar is consistent with the length direction of the background roller and is attached to the outer surface of the background roller. In the rotating process of the background roller, the outer surface of the background roller is cleaned in a spray-washing or immersion cleaning mode. When the background roller is rotated to the side located at the discharging end of the conveyer belt, the scraping bar is attached to the outer surface of the background roller, and thus water drops or a water film on the outer surface of the background roller can be scraped off. The dust spray-hung phenomenon happening due to the fact that dust raised at the discharging end of the conveyer belt is attached to the water drops or the water film is avoided, and therefore the picture signal collection precision of a CCD camera can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of color sorter cleaning, in particular to a cleaning device for a background roller of a color sorter. Background technique [0002] The applicant filed another patent application titled "Color Sorter Background Roller Cleaning Device" filed on the same day as this application, which discloses a structure for cleaning the background roller of a color sorter, including a rotary device installed on the frame. Background roller, the background roller is horizontally placed at the lower position in front of the discharge end of the conveyor belt, a water spray unit is arranged adjacent to the background roller, and the water spray unit implements the water spray operation on the background roller, so that the background roller The dust on the surface is cleaned by spraying, and the sprayed sewage falls into the water tank and is discharged from the water outlet of the water tank. However, when the water spray u...

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Problems solved by technology

[0002] The applicant filed another patent application titled "Color Sorter Background Roller Cleaning Device" filed on the same day as this application, which discloses a structure for cleaning the background roller of a color sorter, including a rotary device installed on the frame. Background roller, the background roller is horizontally placed at the lower position in front of the discharge end of the conveyor belt, a water spray unit is arranged adjacent to the background roller, and the water spray unit implements the water spray operation on the background roller, so that the background roller The dust on the surface is cleaned by spraying, and the sprayed sewage falls into the water tank and is discharged from the water outlet of the water tank. However, when the water spray unit of the above-mentioned cleaning device sprays water on the outer surface of the background roller, the outer surface There will be water film or water droplets left on the surface. When the background roller turns to the discharge end of the conveyor belt, on the one hand, the refraction of the water droplets will seriously affect the acquisition accuracy of the image signal of the CCD camera of the color sorter. The dust raised at the material end will adhere to the water droplets or water film on the background roller in a very short time, thus forming a serious phenomenon of dust drenching, which will lead to more serious pollution of the background roller. It also seriously affects the accuracy of CCD camera image signal acquisition

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