Recording of trash in a fiber preparation system

Patent metadata

Field	Value
Publication number	US-11976388-B2
Application number	US-202117393518-A
Country	US
Kind code	B2
Filing date	Aug 4, 2021
Priority date	Aug 5, 2020
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

A method and associated device and system are provided 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 connected to a negative pressure source for generating transport air. The trash is suctioned from each cleaning point through the transport line with the transport air to the central container and is feed separately from each cleaning point to the central container. In the central container, the trash is separated from the transport air and transferred into a scale for weighing. With the trash located on the scale, an optical recording of the trash is made with a camera directed to an interior of the scale.

First claim

The invention claimed is:

1. A method 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 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 the trash; and
with the trash located on the scale, optically recording the trash with a camera directed to an interior of the scale.

2. The method according to claim 1 , wherein after the trash has been weighed and optically recorded, the method further comprising emptying the trash from the scale into a waste via a flap located in a bottom of the scale.

3. The method according to claim 1 , further comprising determining a quality characteristic of the trash by evaluating an optical image from the optically recording process.

4. 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.

5. 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.

6. The device according to claim 5 , wherein the scale comprises a bottom, the bottom comprising a flap for emptying the trash from the central container.

7. 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.

Assignees

• Rieter Ag Maschf

Inventors

• Wolfer Tobias
• Cevona Petr
• Stejskal Pavel

Classifications

• D01G31/003 Primary

  Detection and removal of impurities · CPC title

• D01G7/00

  Breaking or opening fibre bales · CPC title

• D01G9/08

  by means of air draught arrangements · CPC title

• D01G23/08 Primary

  Air draught or like pneumatic arrangements · CPC title

• G01G17/02 Primary

  for weighing material of filamentary or sheet form · CPC title