Textile detection module, textile sorting system and using method thereof

Patent metadata

Field	Value
Publication number	US-11874526-B2
Application number	US-202117516703-A
Country	US
Kind code	B2
Filing date	Nov 2, 2021
Priority date	Nov 2, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A textile detection module is suitable for detecting a test specimen. The textile detection module includes a height sensor, an excitation light source, an optical detector, and a focuser. The height sensor is suitable for measuring a height of the test specimen to generate a height signal. The excitation light source provides an excitation light beam. The optical detector is disposed on a transmission path of the excitation light beam and is suitable for receiving the excitation light beam and emitting the excitation light beam along the optical axis and receiving a detection light beam to generate a detection result. The focuser is disposed on the transmission path of the excitation light beam emitted by the optical detector. The focuser includes a focus lens suitable for converting the excitation light beam into a focused excitation light beam.

First claim

What is claimed is:

1. A textile detection module, suitable for detecting a test specimen, the textile detection module comprising:
a height sensor, suitable for measuring a height of the test specimen to generate a height signal;
an excitation light source, providing an excitation light beam;
an optical detector, disposed on a transmission path of the excitation light beam and suitable for receiving the excitation light beam and emitting the excitation light beam along an optical axis and receiving a detection light beam to generate a detection result; and
a focuser, disposed on the transmission path of the excitation light beam emitted by the optical detector, wherein the focuser comprises a focus lens suitable for converting the excitation light beam into a focused excitation light beam, and the focused excitation light beam is transmitted from the focuser to the test specimen to generate the detection light beam, wherein
the focuser adjusts a position of the focus lens according to the height signal, the height sensor measures the height of the test specimen at a first position of a conveying path, the optical detector performs optical detection on the test specimen at a second position of the conveying path, and the test specimen moves from the first position to the second position along the conveying path.

2. The textile detection module according to claim 1 , wherein a ratio of a maximum height difference of the test specimen to a moving speed of the focus lens is less than a ratio of a maximum length difference of the test specimen to a moving speed of the test specimen.

3. The textile detection module according to claim 1 , wherein the excitation light source is an infrared laser light emitting device.

4. The textile detection module according to claim 1 , wherein a wavelength of the excitation light beam is greater than 900 nanometers.

5. The textile detection module according to claim 1 , wherein the optical detector comprises a Raman optical instrument and an infrared spectrometer, the Raman optical instrument receives the excitation light beam and emits the excitation light beam to the focuser, and the infrared spectrometer receives the detection light beam to generate the detection result.

6. The textile detection module according to claim 5 , wherein the Raman optical instrument comprises an optical guiding element suitable for receiving and transmitting the excitation light beam.

7. The textile detection module according to claim 1 , wherein the focuser further comprises a carrier, a control element, and a driving element, the carrier carries the focus lens, the control element receives the height signal and generates an adjustment signal according to the height signal to provide the adjustment signal to the driving element, the driving element moves a position of the carrier along an adjustment path according to the adjustment signal, and an extension direction of the adjustment path is parallel to an extension direction of the optical axis.

8. A textile sorting system, suitable for sorting a test specimen, comprising:
a conveying device, suitable for moving the test specimen along a conveying path;
the textile detection module according to claim 1 , wherein the textile detection module is disposed at the conveying device; and
at least one sorting module, disposed at the conveying device, wherein the optical detector is located between the height sensor and the at least one sorting module, and the at least one sorting module sorts the test specimen according to the detection result.

9. The textile sorting system according to claim 8 , wherein the conveying device comprises a conveyor belt suitable for uninterruptedly and continuously conveying the test specimen along the conveying path.

10. The textile sorting system according to claim 9 , wherein the at least one sorting module is an air blowing device, a mechanical arm, or a divider board.

11. A using method of a textile sorting system, comprising:
providing a test specimen to a conveying device to move along a conveying path;
measuring a height of the test specimen to generate a height signal;
adjusting a focuser according to the height signal;
providing a focused excitation light beam to the test specimen to generate a detection light beam;
receiving the detection light beam to generate a detection result; and
sorting the test specimen according to the detection result, wherein
the height of the test specimen is measured at a first position of the conveying path, optical detection is performed on the test specimen at a second position of the conveying path, and the test specimen moves from the first position to the second position along the conveying path.

12. The using method of the textile sorting system according to claim 11 , wherein a method for adjusting the focuser according to the height signal further comprises:
receiving the height signal; and
moving a carrier along an adjustment path according to the height signal, wherein the carrier carries a focus lens.

13. The using method of the textile sorting system according to claim 11 , wherein when the height of the test specimen is measured or optical detection is performed on the test specimen, movement of the test specimen is not stopped.

14. The using method of the textile sorting system according to claim 11 , wherein a method for providing the focused excitation light beam to the test specimen to generate the detection light beam further comprises:
providing an excitation light beam;
receiving the excitation light beam to be converted into the focused excitation light beam; and
providing the focused excitation light beam to the test specimen to generate the detection light beam.

Assignees

• Ind Tech Res Inst

Inventors

• Chu Jen-You
• Jiang Ruei-Han
• Yang Yi-Cyun
• Huang Kuan-Yeh
• Huang Ssu-Yu
• Hsiao Kai-Jen

Classifications

• G02B7/40 Primary

  using time delay of the reflected waves, e.g. of ultrasonic waves · CPC title

• B65G47/46

  and distributing, e.g. automatically, to desired points (in tube mail systems B65G51/36) · CPC title

• G01B11/02

  for measuring length, width or thickness (G01B11/08 takes precedence) · CPC title

• G01J3/108

  for measurement in the infrared range · CPC title

• G01J3/44

  Raman spectrometry; Scattering spectrometry {; Fluorescence spectrometry} · CPC title