Curved surface coating device for curved surface display panel and glue coating apparatus

Patent metadata

Field	Value
Publication number	US-11207707-B2
Application number	US-201816321780-A
Country	US
Kind code	B2
Filing date	Mar 20, 2018
Priority date	Mar 22, 2017
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

The present disclosure provides a curved surface coating device. The curved surface coating device includes a bracket having a first and second ends. The curved surface coating device includes a glue coating portion connected with the first end of the bracket. The curved surface coating device includes a transmission member connected between the first and second ends of the bracket and its distance from the first end of the bracket is adjustable. The curved surface coating device includes a first driving mechanism connected with the transmission member for driving the bracket to rotate about the transmission member as a center of rotation. The curved surface coating device includes a second driving mechanism connected with the bracket for driving the bracket to move on a line where the first end and the second end are located.

First claim

What is claimed is:

1. A curved surface coating device, comprising: a bracket having a first end and a second end; a glue coating portion connected with the first end of the bracket; a rotation shaft connected between the first end and the second end of the bracket, wherein a distance between the first end and the rotation shaft is adjustable; a first driving motor connected with the rotation shaft and configured to drive the bracket to rotate about the rotation shaft as a center of rotation; a second driving motor connected with the bracket and configured to drive the bracket to move on a line where the first end and the second end are located, wherein the glue coating portion comprises; a coating head having a circular arc surface with a slit; a glue storage chamber, one end of which is hermetically connected with the coating head; a piston located within the glue storage chamber and matching a size of the glue storage chamber; a transmission rod, a first end of which extends into the glue storage chamber and is connected with the piston; and a third driving motor connected with a second end of the transmission rod configured to drive the transmission rod with an axial movement along the glue storage chamber, wherein a programmable logic controller (PLC) is electrically connected with the first driving motor, the second driving motor, and the third driving motor for controlling respective power outputs of the first driving motor, the second motor, and the third driving motor, the second driving motor, and acquisition controller unit for acquiring a rotation speed parameter, a gap parameter from a substrate, and a coating pressure parameter; a motion controller connected with the parameter acquisition controller unit for controlling the power output of the first driving motor according to the rotation speed parameter, the power output of the second driving motor according to the gap parameter, and the power output of the third driving motor according to the coating pressure parameter.

2. The curved surface coating device according to claim 1 , wherein the gap parameter comprises a gap between the coating head and a surface of the substrate, and the gap ranges from 10 micrometer to 30 micrometer.

3. A glue coating apparatus, comprising a curved surface coating device, wherein the curved surface coating device comprises: a bracket having a first end and a second end; a glue coating portion connected with the first end of the bracket; a rotation shaft connected between the first end and the second end of the bracket, a distance between the first end and the rotation shaft is adjustable; a first driving motor connected with the rotation shaft and configured to drive the bracket to rotate about the rotation shaft as a center of rotation; a second driving motor connected with the bracket and configured to drive the bracket to move on a line where the first end and the second end are located, wherein the glue coating portion comprises: a coating head having a circular arc surface with a slit; a glue storage chamber, one end of which is hermetically connected with the coating head; a piston located within the glue storage chamber and matching a size of the glue storage chamber; a transmission rod, a first end of which extends into the glue storage chamber and is connected with the piston; and a third driving motor connected with a second end of the transmission rod configured to drive the transmission rod with an axial movement along the glue storage chamber, wherein a programmable logic controller (PLC) is electrically connected with the first driving motor, the second driving motor, and the third driving motor for controlling respective power outputs of the first driving motor, the second driving motor, and the third driving motor, said PLC comprises: a parameter acquisition controller unit for acquiring a rotation speed parameter, a gap parameter from a substrate, and a coating pressure parameter; a motion controller connected with the parameter acquisition controller unit for controlling the power output of the first driving motor according to the rotation speed parameter, the power output of the second driving motor according to the gap parameter, and the power output of the third driving motor according to the coating pressure parameter.

4. The curved surface coating device according to claim 3 , wherein the gap parameter comprises a gap between the coating head and a surface of the substrate, and the gap ranges from 10 micrometer to 30 micrometer.

5. The glue coating apparatus according to claim 3 , wherein the apparatus further comprises: a feed passage for receiving a coating glue; a material circulation passage connected between the feed passage and the glue storage chamber of the glue coating portion.

6. The glue coating apparatus according to claim 5 , wherein a volume of the material circulation passage is larger than a volume of the glue storage chamber.

Assignees

• Hefei Boe Optoelectronics Tech
• Boe Technology Group Co Ltd

Inventors

• Jing Yangkun
• Gao Nan

Classifications

• B65D83/763

  the piston being actuated by a reciprocating axial motion of a shaft which engages the piston, e.g. using a ratchet mechanism · CPC title

• H05K2203/0126

  Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes · CPC title

• H05K13/0469

  by applying a glue or viscous material · CPC title

• H05B33/10

  Apparatus or processes specially adapted to the manufacture of electroluminescent light sources · CPC title

• G01N35/1009

  Characterised by arrangements for controlling the aspiration or dispense of liquids · CPC title