Recording of trash in a fiber preparation system

A method for recording trash in a fiber preparation system having a plurality of cleaning points and a transport line that is connected to the cleaning points and is guided into a central container, the central container connected to a negative pressure source for generating transport air, the method comprising:

• suctioning the trash from each cleaning point through the transport line with the transport air to the central container;
• separately feeding the trash from each cleaning point to the central container;
• in the central container, separating the trash from the transport air and transferring the trash into a scale and weighing trash;
• with the trash located on the scale, optically recording the trash with a camera directed to an interior of the scale;
• determining a quality characteristic of the trash by evaluating an optical image from the optically recording process;
• and
• further comprising using the quality characteristic to optimize a setting of the cleaning point corresponding to where the trash was collected.

A device for recording trash in a fiber preparation system used in a spinning mill to prepare fibers or fiber flocks from fiber bales for subsequent spinning, the fiber preparation system having a plurality of cleaning points, the device comprising:

• a transport line connected to the cleaning points and guided into a central container;
• a negative pressure source for generating transport air;
• a separate connection of each of the cleaning points to the transport line, the connection comprising a separate shut-off element for each respective cleaning point;
• the central container comprising a transport air separator and a scale;
• and
• the central container comprising a camera directed into an interior of the scale to optically record the trash located in the scale.

A fiber preparation system having a plurality of cleaning points, comprising:

• a device for recording trash, the device comprising:
• a transport line connected to the cleaning points and guided into a central container;
• a negative pressure source for generating transport air;
• a connection of each of the cleaning points to the transport line, the connection comprising a shut-off element;
• the central container comprising a transport air separator and a scale;
• and
• the central container comprising a camera directed into an interior of the scale to optically record the trash located in the scale;
• a controller, the controller configured:
• to evaluate an optical image of fiber material entering the fiber preparation system and calculate a quality characteristic of the fiber material;
• and
• use the quality characteristic as a basis for adjustment of the cleaning points.