Drying device for display panel

Patent metadata

Field	Value
Publication number	US-11287186-B2
Application number	US-201716614643-A
Country	US
Kind code	B2
Filing date	Jul 28, 2017
Priority date	May 19, 2017
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A drying device is configured with a sensor corresponding to an air knife-nozzle, and a control switch which suspends an operation of the device when the air knife-nozzle is detected as working abnormally, thereby preventing abnormal products from being produced due to the failure of finding an abnormal condition of the air knife-nozzle in time, ensuring the normal process of the product, and avoiding the nonessential economic loss.

First claim

What is claimed is:

1. A drying device for a display panel, comprising:
a frame comprising a body for mounting the drying device and a stand supporting the body;
an air knife assembly comprising an air knife-nozzle, a gas supply device connected to the air knife-nozzle through a pipeline, and a regulating device controlling a wind strength of the air knife-nozzle, wherein the air knife-nozzle comprises a first air knife-nozzle and a second air knife-nozzle respectively blowing two surfaces of a display panel;
a transfer component comprising a transport platform for transporting the display panel to be cleaned by the air knife-nozzle;
an air cover disposed on two sides of the transport platform to prevent a liquid, blown up by the air knife-nozzle, from splashing;
a detection component comprising a sensor disposed in correspondence with the air knife-nozzle to detect whether the air knife-nozzle works normally; and
a control switch electrically connected to the sensor and controlling the drying device to suspend when the sensor detects that the air knife-nozzle works abnormally.

2. The drying device according to claim 1 , wherein the sensor detecting whether the air knife-nozzle works normally is a swing sensor, and the swing sensor is disposed at an outlet of the air knife-nozzle.

3. The drying device according to claim 1 , wherein the transport platform comprises roller stands and conveying rollers, the roller stands are arranged in parallel along a conveying direction, and the conveying rollers are parallelly interposed between the roller stands.

4. The drying device according to claim 3 , wherein one side of the roller stand near the air knife-nozzle is tilted up by a predetermined angle, so that the conveyed display panel meets the air knife-nozzle at a predetermined angle in an upwardly tilted manner.

5. The drying device according to claim 3 , wherein each of the conveying rollers comprises two sub-rollers, the two sub-rollers are fixed in a V shape, and an included angle of the V shape is directed to the conveying direction of the display panel.

6. The drying device according to claim 1 , wherein a jetting direction of the air knife-nozzle is tilted at a predetermined angle in a direction in which the display panel is conveyed.

7. The drying device according to claim 1 , wherein the pipeline between the air knife-nozzle and the gas supply device comprises a detachable filter tube, and a filter is disposed inside the filter tube.

8. The drying device according to claim 1 , further comprising:
a heating component comprising a heating fin and a regulator, wherein the heating fin is disposed inside the air knife assembly, and the regulator is electrically connected to the heating fin and regulates a heating temperature of the heating fin.

9. The drying device according to claim 1 , wherein the air knife assembly further comprises:
a vibrator driving the air knife-nozzle to vibrate back and forth horizontally in a direction perpendicular to a conveying direction.

10. The drying device according to claim 1 , wherein the air cover is made of a transparent material.

Assignees

• Hkc Corp Ltd
• Chongqing Hkc Optoelectronics Tech Co Ltd

Inventors

• Chien Chung-Kuang

Classifications

• H10P72/0408

  for drying · CPC title

• F26B21/50

  Ducting arrangements from the source of air or other gases to the materials or objects being dried · CPC title

• F26B21/37

  Velocity of flow; Quantity of flow · CPC title

• F26B21/003 Primary

  Air or gas filters · CPC title

• F26B21/30 Primary

  Controlling, e.g. regulating, parameters of gas supply · CPC title