Coating device, system and method for sealant

Patent metadata

Field	Value
Publication number	US-9700914-B2
Application number	US-201514786348-A
Country	US
Kind code	B2
Filing date	May 21, 2015
Priority date	Sep 30, 2014
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A coating device for sealant and a coating method for sealant coating are disclosed. The coating device includes a sealant storage pipe provided with two end portions; one end portion is connected to a gas jet means and the other end portion is connected to a nozzle; a pipe wall of the sealant storage pipe is made from a flexible material; and the pipe wall can be subjected to recoverable inward deformation perpendicular to an axial line of the sealant storage pipe. A coating method for sealant coating, comprising: subjecting a pipe wall to recoverable inward deformation perpendicular to an axial line of a sealant storage pipe during spraying; and subjecting the pipe wall to recovery when the spraying ends.

First claim

The invention claimed is:

1. A coating device for sealant, comprising a sealant storage pipe, wherein the sealant storage pipe is provided with two end portions; one end portion is connected to a gas jet means and the other end portion is connected to a nozzle;
a pipe wall of the sealant storage pipe is made from a flexible material; and the pipe wall can be subjected to recoverable inward deformation perpendicular to an axial line of the sealant storage pipe.

2. The coating device according to claim 1 , wherein the flexible material is a piezoelectric material; and the pipe wall is deformed when an electric field is applied and recovered when the electric field is removed.

3. The coating device according to claim 2 , wherein the piezoelectric material is one or more materials selected from the group consisting of: piezocrystal, piezoceramics, piezopolymer and piezoelectric ceramic-polymer composite.

4. A coating system for sealant, comprising:
a main control unit, a gas source unit connected to the main control unit, deformation control devices, and the coating device according to claim 3 connected to the gas source unit, wherein
the main control unit is configured to control an amount of gas introduced from the gas source unit into the coating device, and hence control an amount of glue sprayed out from the coating device; and the main control unit is configured to control the deformation control devices to act on the coating device, so that the pipe wall of the sealant storage pipe of the coating device is subjected to inward deformation perpendicular to the axial line of the sealant storage pipe or recovery.

5. A coating system for sealant, comprising:
a main control unit, a gas source unit connected to the main control unit, deformation control devices, and the coating device according to claim 2 connected to the gas source unit, wherein
the main control unit is configured to control an amount of gas introduced from the gas source unit into the coating device, and hence control an amount of glue sprayed out from the coating device; and the main control unit is configured to control the deformation control devices to act on the coating device, so that the pipe wall of the sealant storage pipe of the coating device is subjected to inward deformation perpendicular to the axial line of the sealant storage pipe or recovery.

6. The coating device according to claim 1 , wherein the flexible material is a carbon nanotube rubber material; and the pipe wall is deformed when a clamping force is applied and recovered when the clamping force is removed.

7. A coating system for sealant, comprising:
a main control unit, a gas source unit connected to the main control unit, deformation control devices, and the coating device according to claim 6 connected to the gas source unit, wherein
the main control unit is configured to control an amount of gas introduced from the gas source unit into the coating device, and hence control an amount of glue sprayed out from the coating device; and the main control unit is configured to control the deformation control devices to act on the coating device, so that the pipe wall of the sealant storage pipe of the coating device is subjected to inward deformation perpendicular to the axial line of the sealant storage pipe or recovery.

8. A coating system for sealant, comprising:
a main control unit, a gas source unit connected to the main control unit, deformation control devices, and the coating device according to claim 1 connected to the gas source unit, wherein
the main control unit is configured to control an amount of gas introduced from the gas source unit into the coating device, and hence control an amount of glue sprayed out from the coating device; and the main control unit is configured to control the deformation control devices to act on the coating device, so that the pipe wall of the sealant storage pipe of the coating device is subjected to inward deformation or outward recovery perpendicular to the axial line of the sealant storage pipe.

9. The coating system according to claim 8 , wherein the sealant storage pipe is made from a carbon nanotube rubber material; the deformation control device includes a clamping component configured for clamping the sealant storage pipe and a motor connected to the clamping component;
the main control unit is configured to input a control signal into the motor and control the clamping component to apply an inward clamping force from an outside of the pipe wall, so that the pipe wall is subjected to inward deformation perpendicular to the axial line of the sealant storage pipe.

10. The coating system according to claim 8 , wherein the sealant storage pipe is made from a piezoelectric material; the deformation control devices are electrode assemblies for clamping both sides of the pipe wall; and
the main control unit is configured to input a control signal into the electrode assemblies and control the electrode assemblies to apply an inward electric field from an outside of the pipe wall, so that the pipe wall is subjected to inward deformation perpendicular to the axial line of the sealant storage pipe.

11. The coating system according to claim 8 , wherein the coating system further comprises a coating pressure machine detection module connected to the main control unit; and
the main control unit is configured to receive real time information of glue coated by the coating device, detected by the coating pressure machine detection module, send control information to the gas source unit, and hence control a coating quantity of the coating device.

12. The coating system according to claim 8 , wherein the coating system further comprises a coating state detection module connected to the main control unit; and
the main control unit is configured to receive real time fluctuation information of glue coated by the coating device, detected by the coating state detection module, send control information to the gas source unit, and hence control the coating quantity of the coating device.

13. The coating system according to claim 8 , wherein the coating system further comprises a coating glue position feedback module connected to the main control unit; and
the main control unit is configured to receive real time residue information of sealant in the sealant storage pipe of the coating device, detected by the coating glue position feedback module, send control information to the deformation control devices, and hence control the deformation of the sealant storage pipe.

14. A coating method for sealant coating utilizing the coating device according to claim 1 , comprising the following steps:
subjecting a pipe wall to recoverable inward deformation perpendicular to an axial line of a sealant storage pipe during spraying; and
subjecting the pipe wall to recovery when the spraying ends.

15. The coating method according to claim 14 , before the spraying, further comprising:
determining a position of a substrate;
reading a preset pressure value and converting the preset pressure value into a pulse value;
outputting a control signal to a coating device; and
detecting an amount of residual glue in the coating device.

16. The coating method according to claim 14 , during the spraying, further comprising:
applying an inward force from an outside of the pipe wall according to the amount of residual glue in the coating device, so that the pipe wall deforms inwards.

17. The coating method according to claim 14 , before the spraying, further comprising:
coating sealant by test;
detecting a position

Assignees

• Boe Technology Group Co Ltd
• Hefei Boe Optoelectronics Tech

Inventors

• Jing Yangkun

Classifications

• H10P72/0448

  Apparatus for applying a liquid, a resin, an ink or the like · CPC title

• F04B43/043

  Micropumps · CPC title

• G02F1/1339

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• B05D1/02 Primary

  performed by spraying · CPC title