Blade inspection device and method and printing modification device

Patent metadata

Field	Value
Publication number	US-10914565-B2
Application number	US-201816332340-A
Country	US
Kind code	B2
Filing date	Jun 27, 2018
Priority date	Aug 31, 2017
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

The present disclosure provides a blade inspection device, a method and a printing modification device, and belongs to the technical field of screen printing. The blade inspection device includes a telescopic component, a driving component and a parameter obtaining module. The driving component is configured to drive the telescopic component to move in a direction parallel to the line where the blade is located. The parameter obtaining module is configured to obtain a first parameter to inspect the blade according to the first parameter. The first parameter is related to a displacement of the first end of the telescopic component in a direction perpendicular to the line where the blade is located.

First claim

What is claimed is:

1. A blade inspection device, comprising:
a telescopic component, having a first end in contact with a blade of a printing squeegee, and a second end located at a motion interval parallel to a line where the blade is located and being movable along the motion interval, wherein a connecting line between the first end and the second end of the telescopic component is perpendicular to the line where the blade is located;
a driving component, configured to drive the telescopic component to move in a direction parallel to the line where the blade is located; and
a parameter obtaining module, configured to obtain a first parameter, so as to inspect the blade according to the first parameter, wherein the first parameter is related to a displacement of the first end of the telescopic component in a direction perpendicular to the line where the blade is located.

2. The blade inspection device according to claim 1 , wherein the telescopic component comprises a spring component that has a first end in contact with the blade of the printing squeegee, and a second end located at the motion interval parallel to the line where the blade is located and movable along the motion interval, and the spring component is in a stretched state; and
the parameter obtaining module comprises a tension measurement component coupled to the second end of the spring component to obtain a tension value of the spring component as the first parameter.

3. The blade inspection device according to claim 2 , wherein the telescopic component further comprises:
a spring fixing component, sleeved on a periphery of the spring component to ensure that the spring component is perpendicular to the line where the blade is located when moving in the direction parallel to the line where the blade is located.

4. The blade inspection device according to claim 1 , wherein the telescopic component comprises an extension component that has a first end in contact with the blade of the printing squeegee, and a second end located at the motion interval parallel to the line where the blade is located and movable along the motion interval, and the extension component is a rigid body; and
the parameter obtaining module comprises a displacement sensor, configured to obtain a displacement of the first end of the extension component in the direction perpendicular to the line where the blade is located as the first parameter.

5. The blade inspection device according to claim 4 , wherein the telescopic component further comprises:
a driving unit, coupled to the second end of the extension component to drive the extension component to move in the direction perpendicular to the line where the blade is located, so that the first end of the extension component is in contact with the blade of the printing squeegee.

6. The blade inspection device according to claim 4 , wherein the displacement sensor comprises:
a displacement conversion circuit, configured to generate an electrical signal related to the displacement of the first end of the extension component in the direction perpendicular to the line where the blade is located;
a signal amplification circuit, configured to perform amplification processing on the electrical signal; and
an analog-to-digital conversion circuit, configured to convert the electrical signal amplified into a digital signal, and calculate the displacement of the first end of the extension component in the direction perpendicular to the line where the blade is located according to the digital signal.

7. The blade inspection device according to claim 4 , wherein the displacement sensor comprises a first microprocessor, and the first microprocessor is configured to:
generate an electrical signal related to the displacement of the first end of the extension component in the direction perpendicular to the line where the blade is located;
perform amplification processing on the electrical signal; and
convert the electrical signal amplified into a digital signal, and calculate the displacement of the first end of the extension component in the direction perpendicular to the line where the blade is located according to the digital signal.

8. The blade inspection device according to claim 1 , further comprising:
a calculation circuit, configured to calculate a difference between the first parameter and a reference parameter;
an alarm unit, configured to perform an alarm prompt when the difference is greater than a threshold.

9. The blade inspection device according to claim 1 , further comprising a microprocessor, wherein the microprocessor is configured to:
calculate a difference between the first parameter and a reference parameter; and
perform an alarm prompt when the difference is greater than a threshold.

10. A blade inspection device according to claim 8 , wherein the alarm unit performs the alarm prompt by way of at least one of sound and light.

11. A blade inspection method applied to a blade inspection device, comprising:
providing the blade inspection device, the blade inspection device comprising:
a telescopic component having a first end in contact with a blade of a printing squeegee, and a second end located at a motion interval parallel to a line where the blade is located and being movable along the motion interval, wherein a connecting line between the first end and the second end of the telescopic component is perpendicular to a line where the blade is located;
a driving component configured to drive the telescopic component to move in a direction parallel to the line where the blade is located; and
a parameter obtaining module configured to obtain a first parameter so as to inspect the blade according to the first parameter, wherein the first parameter is related to a displacement of the first end of the telescopic component in a direction perpendicular to the line where the blade is located;

driving the telescopic component to move in the direction parallel to the line where the blade is located; and
obtaining the first parameter, and inspecting the blade according to the first parameter, wherein the first parameter is related to the displacement of the first end of the telescopic component in the direction perpendicular to the line where the blade is located.

12. The blade inspection method according to claim 11 , further comprising:
calculating a difference between the first parameter and a reference parameter; and
performing an alarm prompt when the difference is greater than a threshold.

13. A printing modification device, comprising a printing squeegee and a blade inspection device, wherein the blade inspection device comprises:
a telescopic component, having a first end in contact with a blade of the printing squeegee, and a second end located at a movement interval parallel to a line where the blade is located and being movable along a motion interval, wherein a connecting line between the first end and the second end of the telescopic component is perpendicular to the line where the blade is located;
a driving component, configured to drive the telescopic component to move in a direction parallel to the line where the blade is located; and
a parameter obtaining module, configured to obtain a first parameter, so as to inspect the blade according to the first parameter, wherein the first parameter is related to a displacement of the first end of the telescopic component in a direction perpendicular to the line where the blade is located.

14. The printing modification device according to claim 13 , wherein the telescopic component comprises a spring component, which has a first end in contact with the blade of

Assignees

• Ordos Yuansheng Optoelectronics Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wang Lina
• Ma Dawei
• Huang Chunchieh
• Wang Zifeng

Classifications

• G01N33/00 Primary

  Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 · CPC title

• G08B7/06

  using electric transmission {, e.g. involving audible and visible signalling through the use of sound and light sources} · CPC title

• G08B3/10

  using electric transmission; using electromagnetic transmission · CPC title

• G08B21/18

  Status alarms (G08B21/02 takes precedence) · CPC title

• B41F33/0027

  Devices for scanning originals, printing formes or the like for determining or presetting the ink supply · CPC title