WO2020019731A1 - 一种液刀及采用该液刀的自动清洁方法 - Google Patents

一种液刀及采用该液刀的自动清洁方法 Download PDF

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Publication number
WO2020019731A1
WO2020019731A1 PCT/CN2019/078253 CN2019078253W WO2020019731A1 WO 2020019731 A1 WO2020019731 A1 WO 2020019731A1 CN 2019078253 W CN2019078253 W CN 2019078253W WO 2020019731 A1 WO2020019731 A1 WO 2020019731A1
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WIPO (PCT)
Prior art keywords
liquid knife
blade
knife
liquid
module
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PCT/CN2019/078253
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English (en)
French (fr)
Inventor
张海杰
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武汉华星光电技术有限公司
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Publication of WO2020019731A1 publication Critical patent/WO2020019731A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
    • B08B1/165—Scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning

Definitions

  • the invention relates to the field of liquid crystal display panels, in particular to a liquid knife and an automatic cleaning method using the liquid knife.
  • TFT-LCD Thin Film In the manufacturing process of a Transistor-Liquid Crystal Display (thin film field effect transistor-liquid crystal display) array substrate
  • patterning processes such as exposure, development, etching, and peeling need to be performed.
  • ITO Indium tin In the oxide (ie, indium tin oxide) thin film etching process
  • oxalic acid is generally used for etching. After the glass substrate enters the etching process, cleaning work needs to be performed to remove the etching solution on the glass substrate.
  • the liquid knife is firstly used for high-pressure cleaning to remove the etching solution on the glass substrate.
  • the volume of the glass substrate handled by the liquid knife increases, or the liquid knife is not sprayed for a long period of time, there may be some small foreign matters in the water used by the liquid knife, and these foreign matters will remain inside the knife edge of the liquid knife, and it will easily cause crystal blockage , which in turn causes the liquid knife to produce bifurcation during the water spraying process.
  • the liquid knife causes bifurcation, which causes uneven brightness, and the yield of the product cannot be guaranteed.
  • An object of the present invention is to provide a liquid knife and an automatic cleaning method using the liquid knife.
  • the liquid knife uses a scraper blade that can penetrate into the knife edge of the knife to clean the foreign matter inside the knife edge of the knife, and performs automatic wiping according to the cooperation of the drive module and the control module to reduce the manual cleaning workload of the operator. At the same time, it also avoids the problem of product abnormality caused by the operator's negligence of uncleaned crystals, and also improves the cleaning efficiency.
  • a liquid knife includes: a liquid knife body having a liquid knife edge; and a scraper blade, one end of which is inserted into the inside of the liquid knife edge for scraping and wiping A foreign object inside the knife edge of the liquid knife; a drive module, which is connected to the other end of the blade, for driving the blade to move inside the knife edge of the liquid knife; a control module, which controls The module is connected to the driving module and is used to send a control signal to the driving module to control the operation of the driving module; the scraper blade is driven along the length of the liquid knife body according to the driving control of the driving module.
  • the driving module includes a bracket and a connecting portion, and the bracket is used to mount one end of the blade to the blade through a fixing member; On the bracket; the connecting portions are respectively connected to the sliding track of the bracket and the liquid knife, and the connecting portion is used for driving the scraper blade along the sliding path by moving in the sliding track of the liquid knife The liquid knife moves in the length direction .
  • the present invention provides a liquid knife comprising: a liquid knife body having a liquid knife edge; a scraper blade, one end of which is inserted into the inside of the liquid knife edge For scraping the foreign objects inside the knife edge of the liquid knife; a driving module, which is connected to the other end of the blade, for driving the blade to move inside the knife edge of the liquid knife; a control Module, the control module is connected to the drive module and is used to send a control signal to the drive module to control the operation of the drive module.
  • the wiper blade is moved along the longitudinal direction of the liquid knife body according to the drive control of the driving module, and the depth inserted into the knife edge of the liquid knife is adjusted.
  • the driving module includes a bracket and a connecting portion, and the bracket is used for mounting one end of the blade on the bracket through a fixing member; the connection The connecting part is respectively connected to the carriage and the sliding track of the liquid knife, and the connecting part is used to drive the scraper to move in the length direction of the liquid knife by moving in the sliding track of the liquid knife .
  • the driving module further includes an adjustable portion, and the adjustable portion is disposed between the connecting portion and the slide rail of the liquid knife.
  • a scale is provided on the surface, and the adjustable portion is used to control the connecting portion to move according to the scale on the scale, thereby adjusting the depth of the blade inserted into the knife edge of the liquid knife.
  • the driving module further includes a DC brushless motor or a guide cylinder.
  • control module includes a programmable controller, and the programmable controller sends a control instruction to the driving module according to a preset parameter to control the wiper blade in a preset setting. Wipe action is performed within time.
  • the thickness of the scraper blade is set at 0.5 mm to 1 mm, and the width of the knife edge of the liquid knife is 1.5 mm to 2 mm.
  • a cross section of the scraper is triangular.
  • the present invention further provides an automatic cleaning method for the liquid knife, which includes the following steps: (1) a control module sends a control instruction to a drive module; (2) the drive module receives After the control instruction, the DC brushless motor or the guide cylinder of the driving module is triggered to start; (3) when the DC brushless motor or the guide cylinder starts to work, the driving module is connected to each other A connecting part and a bracket, so that the blade mounted on the bracket moves along the length direction of the liquid knife; (4) after a preset time interval, the control module sends a control again A command is given to the driving module to drive the scraper to clean a foreign object inside the knife edge of the liquid knife.
  • the driving module includes an adjustable portion, and a scale is provided on a surface of the adjustable portion; the method further includes after step (3): (5) according to The scale of the scale is used to adjust the depth of the blade inserted into the blade of the liquid knife; (6) after adjusting the blade, fixing the connecting portion to the adjustable portion; 7) The control module and the driving module again control the scraper to scrape foreign objects inside the knife edge of the liquid knife.
  • the advantage of the present invention is that the liquid knife cleans the foreign objects inside the knife edge of the knife through a scraper blade that can penetrate into the knife edge of the knife, and automatically wipes according to the cooperation of the driving module and the control module to reduce operation.
  • the manual cleaning workload of the operator also avoids the problem of product abnormality caused by the operator's negligence of uncleaned crystals, and also improves the cleaning efficiency.
  • FIG. 1 is a partial structural cross-sectional view of a liquid knife in an embodiment of the present invention.
  • FIG. 2 is a diagram schematically showing the movement of the blade in the longitudinal direction of the liquid knife in the embodiment of the present invention.
  • FIG. 3 is a flowchart of steps in an automatic cleaning method using the liquid knife in an embodiment of the present invention.
  • An embodiment of the present invention provides a liquid knife. Each will be described in detail below.
  • the liquid knife in an embodiment of the present invention includes a liquid knife body 120, a doctor blade 110, a driving module, and a control module (not shown).
  • the liquid knife body 120 has a liquid knife edge 121.
  • the scraper 110 has a thin sheet structure.
  • the cross section of the scraper 110 is triangular.
  • the shape of the cross section of the scraper 110 is not limited to a triangle. Shape, for example, the upper base is narrower and the lower base is wider.
  • the thickness of the doctor blade 110 is set at 0.5 mm to 1 mm, and the width of the knife edge of the liquid knife is 1.5 mm to 2 mm.
  • One end of the wiper blade 110 is inserted into a liquid knife blade 121, and the wiper blade 110 moves along the length direction of the liquid knife body 120 according to the driving control of the driving module, and can be adjusted and inserted into the liquid knife body 120. Depth of the inner edge of the liquid knife edge 122. Therefore, the scraper blade 110 can scrape the fine foreign materials on the blade edge 121 and the blade edge inside 122 of the liquid knife.
  • a material such as a doctor blade may be a PVC material.
  • PVC material has non-flammability, high strength, weather resistance and excellent geometric stability.
  • PVC is very resistant to oxidants, reducing agents and strong acids.
  • other acid-resistant materials can also be used.
  • the driving module is connected to the other end of the wiper blade 110 and is used to drive the wiper blade 110 to move within the liquid knife blade 121 and the knife blade inside 122.
  • the driving module includes a bracket 130 and a connecting portion 140.
  • the bracket 130 is used for mounting one end of the blade 110 on the bracket 130 through a fixing member 131.
  • the fixing member 131 may be a fixing screw, but is not limited thereto.
  • the fixing blade is used to facilitate the removal of the scraper blade 110.
  • the connecting portion 140 is respectively connected to the carriage 130 and the sliding track of the liquid knife, and the connecting portion 140 is used to drive the scraper blade 110 along the sliding path by moving in the sliding track of the liquid knife.
  • the liquid knife body 120 moves in the longitudinal direction.
  • the driving module further includes an adjustable portion 160 which is disposed between the connecting portion 140 and a slide rail (not shown) of the liquid knife.
  • the sliding track of the liquid knife may be a concave shape, of course, it may also be an I-shape or other suitable shape, so that the adjustable portion 160 is engaged with the sliding track of the liquid knife.
  • a scale (not shown in the figure) is provided on one surface of the adjustable portion 160, and the adjustable portion 160 is used to control the connecting portion 140 to move according to the scale on the scale to adjust the scraping
  • the blade 110 is inserted to a depth of the inside 122 of the liquid knife edge.
  • the depth of the blade 110 inserted into the inside of the liquid knife edge 122 and the distance between the bracket 130 and the liquid knife edge 121 can be changed.
  • the distance between the bracket 130 and the liquid knife edge 121 is to ensure that the bracket 130 and the liquid knife edge 121 will not collide.
  • the driving module further includes a brushless DC motor and a screw rod (not shown).
  • a brushless DC motor rotates, a power is output to the screw rod.
  • the screw rod drives the adjustable portion 160 to move, and then further drives the bracket 130 and the wiper blade 110 to move accordingly.
  • a guide rod cylinder can also be used to drive the adjustable portion 160, the bracket 130, and the wiper blade 110 to move accordingly.
  • the control module is connected to the driving module and is configured to send a control signal to the driving module to control the movement and operation of the driving module.
  • the control module includes a programmable controller (not shown), and the programmable controller sends a control instruction to the driving module according to a preset parameter timing to control the wiper blade 110 in the preset
  • the wipe action is performed within the set time. For example, according to the actual situation, after processing the 200 glass substrates, or 4 hours after the end of the processing of the glass substrate, or at a certain time in the morning or evening, the liquid knife periodically sends a control instruction to the drive through a preset parameter of the control module Module to automatically clean the liquid knife. This will ensure that the normal operation of the equipment is not affected.
  • the control module can be used to drive the wiper blade 110 to automatically clean the liquid knife blade 121 and the foreign material inside the blade 122. And, at this time, the time is relatively abundant.
  • the devices in this article can be LCD TFT backplanes and other LTPS (Low Temperature Poly-silicon (low temperature polysilicon) technology flat panel display production equipment.
  • the control module is not limited to using a programmable controller, and a control processor with similar functions may also be used.
  • the liquid knife cleans the foreign objects of the liquid knife blade 121 and the knife edge 122 through a wiper blade 110 that can penetrate into the inside of the knife edge 122, and performs automatic scraping according to the cooperation of the drive module and the control module to
  • the manual cleaning work of the operator is reduced, and the problem of product abnormality caused by the operator's negligence of uncleaned crystals is avoided, and the cleaning efficiency is also improved.
  • the present invention further provides an automatic cleaning method for the liquid knife, which includes the following steps:
  • Step S310 The control module sends a control instruction to the driving module.
  • control module includes a programmable controller (not shown), and the programmable controller periodically sends a control instruction to the driving module according to a preset parameter.
  • a preset parameter For example, according to the actual situation, after processing the 200 glass substrates, or 4 hours after the end of the processing of the glass substrate, or at a certain time in the morning or evening, the liquid knife periodically sends a control instruction to the driver through a preset parameter of the control module. Module to automatically clean the liquid knife.
  • Step S320 After receiving the control instruction, the driving module triggers the DC brushless motor or the guide cylinder of the driving module to turn on.
  • the driving module includes a brushless DC motor and a screw rod.
  • a power is output to the screw rod, and the screw rod drives the adjustable portion to move, and then further drives the bracket and the wiper blade to move accordingly.
  • a guide rod cylinder can also be used to drive the corresponding movement of the adjustable portion, the bracket and the blade.
  • Step S330 when the DC brushless motor or the guide rod cylinder starts to work, drive the connection part and the bracket connected to each other in the drive module, so that the blade mounted on the bracket is along the length of the liquid knife Move in the direction.
  • the method may further include the following steps:
  • Step S331 adjusting the depth of the blade inserted into the blade of the liquid knife according to the scale of the scale table;
  • Step S332 After adjusting the wiper blade, fix the connecting portion to the adjustable portion
  • Step S333 The control module and the driving module are used to control the wiper to wipe the knife edge of the liquid knife and the foreign objects inside the knife edge again.
  • the driving module includes an adjustable part, and a scale is provided on a surface of the adjustable part.
  • the adjustable part is used to control the connecting part to move according to the scale on the scale, so as to adjust the depth that the blade is inserted into the knife edge of the liquid knife. That is, through the cooperation of the adjustable portion and the connecting portion, the depth of the blade inserted into the blade of the liquid knife and the distance between the bracket and the blade of the liquid knife can be changed. The distance between the bracket and the knife edge of the liquid knife to ensure that the bracket and the knife do not collide.
  • the implementation of the above steps S331 to S333 may also be performed after step S340 according to the needs of the actual situation.
  • Step S340 After a preset time interval, the control module sends a control instruction to the driving module again to drive the wiper blade to clean the liquid knife edge and foreign objects inside the knife edge.
  • step S340 can further reduce the liquid knife edge and the fine foreign matters inside the knife edge.
  • a driving blade automatically cleans the knife edge and the inside of the knife edge through the cooperation of the control module and the drive module in the liquid knife.
  • the scraper automatically cleans up foreign objects, eliminating the need to shut down and manually clean up as in the prior art. Time to improve production efficiency.

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  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

提供了一种液刀及采用该液刀的自动清洁方法，该液刀通过一能伸入液刀刀口（121）内部的刮片（110）以清洁液刀刀口（121）内部的异物，并且根据驱动模块和控制模块的配合工作而进行自动刮拭，以减少操作者的手动清理工作量，同时也避免因操作者疏忽未清理结晶所造成的产品异常的问题，而且也提高了清洁效率。

Description

一种液刀及采用该液刀的自动清洁方法 技术领域
本发明涉及液晶显示面板领域，尤其涉及一种液刀及采用该液刀的自动清洁方法。
 背景技术
在TFT-LCD（Thin Film Transistor-Liquid Crystal Display，即薄膜场效应晶体管-液晶显示器）阵列基板制造工艺中，需要进行曝光、显影、刻蚀、剥离等构图工艺。其中，在ITO(Indium tin oxide，即氧化铟锡)薄膜刻蚀工艺中，一般采用草酸进行刻蚀，玻璃基板进入蚀刻工序之后，需要执行清洗工作以去除玻璃基板上的刻蚀液。
 技术问题
在清洗时，玻璃基板进入喷淋时，首先要使用液刀高压清洗以去除玻璃基板上的刻蚀液。当液刀处理的玻璃基板货量增加，或者液刀在此期间长时间不喷洒，液刀所用之水中可能存在一些细小的异物，而这些异物会留在液刀刀口内部，并且容易造成结晶堵塞，进而导致液刀在喷水过程中产生分叉。玻璃基板在经过该液刀进行清洗时，由于液刀产生分叉，就会造成亮度不均，并且无法保证产品的良率。另外，现阶段只能是停止设备的运行，通过操作人员手动刮拭来去除液刀的结晶，或者调节液刀刀口螺丝的松紧度，使得异物消除。但是，这些方式需要设备停机时间增加，并且影响了生产效率。
 技术解决方案
本发明的目的在于，提供一种液刀及采用该液刀的自动清洁方法。所述液刀通过一能伸入液刀刀口内部的刮片以清洁液刀刀口内部的异物，并且根据驱动模块和控制模块的配合工作而进行自动刮拭，以减少操作者的手动清理工作量，同时也避免因操作者疏忽未清理结晶所造成产品异常的问题，而且也提高了清洁效率。
根据本发明的一方面，一种液刀，其包括：一液刀本体，具有一液刀刀口；一刮片，所述刮片的一端插入至所述液刀刀口的内部，用于刮拭所述液刀刀口内部的异物；一驱动模块，所述驱动模块与所述刮片的另一端相连，用于驱动所述刮片在所述液刀刀口内部移动；一控制模块，所述控制模块与所述驱动模块相连，用于发送一控制信号至所述驱动模块，以控制所述驱动模块的运行；所述刮片根据所述驱动模块的驱动控制而沿所述液刀本体的长度方向移动，以及调整插入至所述液刀刀口内部的深度；所述驱动模块包括一托架和一连接部，所述托架用于通过一固定件将所述刮片的一端安装在所述托架上；所述连接部分别与所述托架和所述液刀的滑动轨道相连，所述连接部用于通过在所述液刀的滑动轨道中的移动以带动所述刮片沿所述液刀的长度方向移动。
根据本发明的另一方面，本发明提供了一种液刀，其包括：一液刀本体，具有一液刀刀口；一刮片，所述刮片的一端插入至所述液刀刀口的内部，用于刮拭所述液刀刀口内部的异物；一驱动模块，所述驱动模块与所述刮片的另一端相连，用于驱动所述刮片在所述液刀刀口内部移动；一控制模块，所述控制模块与所述驱动模块相连，用于发送控制信号至所述驱动模块，以控制所述驱动模块的运行。
在本发明的一实施例中，所述刮片根据所述驱动模块的驱动控制而沿所述液刀本体的长度方向移动，以及调整插入至所述液刀刀口内部的深度。
在本发明的一实施例中，所述驱动模块包括一托架和一连接部，所述托架用于通过一固定件将所述刮片的一端安装在所述托架上；所述连接部分别与所述托架和所述液刀的滑动轨道相连，所述连接部用于通过在所述液刀的滑动轨道中的移动以带动所述刮片沿所述液刀的长度方向移动。
在本发明的一实施例中，所述驱动模块还包括一可调节部，所述可调节部设置在所述连接部和所述液刀的滑动轨道之间，在所述可调节部的一表面上设置一刻度表，所述可调节部用于控制所述连接部根据所述刻度表上的刻度而作移动，从而调整所述刮片插入至所述液刀刀口内部的深度。
在本发明的一实施例中，所述驱动模块还包括一直流无刷电机或一导杆气缸。
在本发明的一实施例中，所述控制模块包括一可编程控制器，所述可编程控制器根据预设参数定时发送控制指令至所述驱动模块，以控制所述刮片在预设定时间内执行刮拭动作。
在本发明的一实施例中，所述刮片的厚度设置在0.5mm～1mm，所述液刀刀口的宽度为1.5mm～2mm。
在本发明的一实施例中，所述刮片的横截面呈三角状。
根据本发明的又一方面，本发明还提供一种上述液刀的自动清洁方法，其包括以下步骤：（1）一控制模块发送一控制指令至一驱动模块；（2）驱动模块在接收到所述控制指令之后，触发所述驱动模块的直流无刷电机或导杆气缸开启；（3）当所述直流无刷电机或所述导杆气缸开始工作时，带动所述驱动模块中彼此相连的一连接部和一托架，进而使得安装在所述托架上的刮片沿所述液刀的长度方向移动；（4）在一预设时间间隔后，所述控制模块再次发送一控制指令至所述驱动模块，以带动所述刮片清洁所述液刀刀口内部的异物。
在本发明的一实施例中，所述驱动模块包括一可调节部，在所述可调节部的一表面上设置一刻度表；所述方法在步骤（3）之后还包括：（5）根据所述刻度表的刻度，调整所述刮片插入至所述液刀刀口内部的深度；（6）在调整完所述刮片之后，将所述连接部固定在所述可调节部上；（7）通过所述控制模块和所述驱动模块再次控制所述刮片刮拭所述液刀刀口内部的异物。
 有益效果
本发明的优点在于，所述液刀通过一能伸入液刀刀口内部的刮片以清洁液刀刀口内部的异物，并且根据驱动模块和控制模块的配合工作而进行自动刮拭，以减少操作者的手动清理工作量，同时也避免因操作者疏忽未清理结晶所造成产品异常的问题，而且也提高了清洁效率。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例中的液刀的局部结构剖视图。
图2是示意性表示本发明所述实施例中的刮片沿液刀的长度方向移动的图。
图3是本发明一实施例中采用所述液刀的自动清洁方法的步骤流程图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书以及上述附图中的术语“第一”、“第二”、“第三”等（如果存在）是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应当理解，这样描述的对象在适当情况下可以互换。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
在本专利文档中，下文论述的附图以及用来描述本发明公开的原理的各实施例仅用于说明，而不应解释为限制本发明公开的范围。所属领域的技术人员将理解，本发明的原理可在任何适当布置的系统中实施。将详细说明示例性实施方式，在附图中示出了这些实施方式的实例。此外，将参考附图详细描述根据示例性实施例的终端。附图中的相同附图标号指代相同的元件。
本发明说明书中使用的术语仅用来描述特定实施方式，而并不意图显示本发明的概念。除非上下文中有明确不同的意义，否则，以单数形式使用的表达涵盖复数形式的表达。在本发明说明书中，应理解，诸如“包括”、“具有”以及“含有”等术语意图说明存在本发明说明书中揭示的特征、数字、步骤、动作或其组合的可能性，而并不意图排除可存在或可添加一个或多个其他特征、数字、步骤、动作或其组合的可能性。附图中的相同参考标号指代相同部分。
本发明实施例提供一种液刀。以下将分别进行详细说明。
参阅图1和图2所示，本发明一实施例中的液刀包括：一液刀本体120、一刮片110、一驱动模块和一控制模块（图中未示）。
其中，所述液刀本体120具有一液刀刀口121。所述刮片110为一薄片结构，在本实施例中，所述刮片110的横截面呈三角状，当然，在其他部分实施例中，所述刮片110的横截面的形状不限于三角状，例如上底较窄，下底较宽。在本实施例中，所述刮片110的厚度设置在0.5mm～1mm，所述液刀刀口的宽度为1.5mm～2mm。
所述刮片110的一端插入至一液刀刀口121的内部，所述刮片110根据所述驱动模块的驱动控制而沿所述液刀本体120的长度方向移动，并且可以调整插入至所述液刀刀口内部122的深度。于是，所述刮片110可以刮拭液刀刀口121以及刀口内部122的细小异物。
另外，在本实施例中，如刮片可以采用的材料为PVC材料。PVC材料具有不易燃性、高高强度、耐气候变化性及优良的几何稳定性。PVC对氧化剂、还原剂和强酸都有很强的抵抗力。当然也可以采用其他的耐酸材料。
所述驱动模块与所述刮片110的另一端相连，用于驱动刮片110在所述液刀刀口121及刀口内部122移动。在本实施例中，所述驱动模块包括一托架130和一连接部140。所述托架130用于通过一固定件131将所述刮片110的一端安装在所述托架130上。所述固定件131可以采用固定螺丝，但不限于此。另外，通过采用固定螺丝安装的方式，以便于拆卸所述刮片110。所述连接部140分别与所述托架130和所述液刀的滑动轨道相连，所述连接部140用于通过在所述液刀的滑动轨道中的移动以带动所述刮片110沿所述液刀本体120的长度方向移动。
另外，优选的，所述驱动模块还包括一可调节部160，所述可调节部160设置在所述连接部140和所述液刀的滑动轨道（图未示）之间，其中，在本实施例中，所述液刀的滑动轨道可以为凹字形，当然也可以为工字形或其他合适形状，以使所述可调节部160卡接于所述液刀的滑动轨道。在所述可调节部160的一表面上设置一刻度表（图未标注），所述可调节部160用于控制所述连接部140根据刻度表上的刻度而作移动，从而调整所述刮片110插入至所述液刀刀口内部122的深度。也就是说，通过可调节部160和连接部140的配合作用，可以改变刮片110插入液刀刀口内部122的深度以及所述托架130与所述液刀刀口121之间间距，尤其是调整所述托架130与所述液刀刀口121之间间距，以确保托架130与液刀刀口121不会碰撞。
另外，所述驱动模块还包括直流无刷电机和丝杆（图未示）。当所述直流无刷电机转动时，输出一动力至丝杆，所述丝杆带动所述可调节部160的移动，于是进一步带动托架130及刮片110相应地移动。当然，除了使用直流无刷电机和丝杆之外，也可以使用导杆气缸来带动所述可调节部160、托架130及刮片110的相应移动。
所述控制模块与所述驱动模块相连，用于发送控制信号至所述驱动模块，以控制所述驱动模块的移动运行。在本实施例中，所述控制模块包括可编程控制器（图未示），所述可编程控制器根据预设参数定时发送控制指令至所述驱动模块，以控制所述刮片110在预设定时间内执行刮拭动作。例如，根据实际情况，液刀在处理200片玻璃基板之后，或者在结束处理玻璃基板4小时之后，或者在早上或晚上某一时间，通过控制模块的预设参数定时发送控制指令至所述驱动模块，以自动清洁液刀。这样能够保证设备的正常运行未受到影响。另外，在设备处于空闲时，可以通过所述控制模块带动刮片110自动清洁所述液刀刀口121及刀口内部122的异物。且，在此时运行，时间相对充裕。需说明的是，本文中设备可以为LCD TFT背板以及其他LTPS（Low Temperature Poly-silicon，即低温多晶硅）技术平板显示生产设备。另外，所述控制模块不仅限于采用可编程控制器，也可以使用具有类似功能的控制处理器。
因此，所述液刀通过一能伸入液刀刀口内部122的刮片110以清洁液刀刀口121及刀口内部122的异物，并且根据驱动模块和控制模块的配合工作而进行自动刮拭，以减少操作者的手动清理工作，同时也避免因操作者疏忽未清理结晶所造成产品异常的问题，而且也提高了清洁效率。
参阅图3所示，本发明还提供一种上述液刀的自动清洁方法，其包括以下步骤：
步骤S310：控制模块发送一控制指令至驱动模块。
在本实施例中，所述控制模块包括可编程控制器（图未示），所述可编程控制器根据预设参数定时发送控制指令至所述驱动模块。例如，根据实际情况，液刀在处理200片玻璃基板之后，或者在结束处理玻璃基板4小时之后，或者在早上或晚上某一时间，通过控制模块的预设参数定时发送控制指令至所述驱动模块，以自动清洁液刀。
步骤S320：驱动模块在接收到所述控制指令之后，触发所述驱动模块的直流无刷电机或导杆气缸开启。
所述驱动模块包括直流无刷电机和丝杆。当所述直流无刷电机转动时，输出一动力至丝杆，所述丝杆带动所述可调节部的移动，于是进一步带动托架及刮片相应地移动。当然，除了使用直流无刷电机和丝杆之外，也可以使用导杆气缸来带动所述可调节部、托架及刮片的相应移动。
步骤S330：当直流无刷电机或导杆气缸开始工作时，带动所述驱动模块中彼此相连的连接部和托架，进而使得安装在所述托架上的刮片沿所述液刀的长度方向移动。
在执行完步骤S330之后，还可以进一步包括以下步骤：
步骤S331：根据所述刻度表的刻度，调整所述刮片插入至所述液刀刀口内部的深度；
步骤S332：在调整完刮片之后，将所述连接部固定在所述可调节部上
步骤S333：通过控制模块和驱动模块再次控制刮片刮拭液刀刀口及刀口内部的异物。
所述驱动模块包括一可调节部，在所述可调节部的一表面上设置一刻度表。所述可调节部用于控制所述连接部根据刻度表上的刻度而作移动，从而调整所述刮片插入至所述液刀刀口内部的深度。也就是说，通过可调节部和连接部的配合作用，可以改变所述刮片插入所述液刀刀口内部的深度以及所述托架与所述液刀刀口之间间距，尤其是调整所述托架与所述液刀刀口之间间距，以确保托架与液刀不会碰撞。当然，上述步骤S331至S333的实施，也可以根据实际情况的需要，在步骤S340之后执行。
步骤S340：在一预设时间间隔后，所述控制模块再次发送控制指令至所述驱动模块，以带动刮片清洁所述液刀刀口及刀口内部的异物。
通过步骤S340的实施，能够进一步减少液刀刀口及刀口内部的细小异物。
本发明所述自动清洁方法在通过上述液刀中的控制模块和驱动模块的配合工作下，驱动刮片自动清洁液刀刀口和刀口内部。在设定好的时间间隔内，刮片自动清理异物，无需如现有技术要停机人工进行清理，不仅有效地避免液刀喷射不均情况的发生，提高产品合格率，而且也减少设备的停机时间，提高了生产效率。
以上对本发明实施例所提供的一种液刀及采用该液刀的自动清洁方法进行了详细介绍。应理解，本文所述的示例性实施方式应仅被认为是描述性的，用于帮助理解本发明的方法及其核心思想，而并不用于限制本发明。在每个示例性实施方式中对特征或方面的描述通常应被视作适用于其他示例性实施例中的类似特征或方面。尽管参考示例性实施例描述了本发明，但可建议所属领域的技术人员进行各种变化和更改。本发明意图涵盖所附权利要求书的范围内的这些变化和更改。
 工业实用性
本申请的主题可以在工业中制造和使用，具备工业实用性。

Claims (11)

  1. 一种液刀，其包括：
    一液刀本体，具有一液刀刀口；
    一刮片，所述刮片的一端插入至所述液刀刀口的内部，用于刮拭所述液刀刀口内部的异物；
    一驱动模块，所述驱动模块与所述刮片的另一端相连，用于驱动所述刮片在所述液刀刀口内部移动；
    一控制模块，所述控制模块与所述驱动模块相连，用于发送一控制信号至所述驱动模块，以控制所述驱动模块的运行；
    所述刮片根据所述驱动模块的驱动控制而沿所述液刀本体的长度方向移动，以及调整插入至所述液刀刀口内部的深度；
    所述驱动模块包括一托架和一连接部，所述托架用于通过一固定件将所述刮片的一端安装在所述托架上；所述连接部分别与所述托架和所述液刀的滑动轨道相连，所述连接部用于通过在所述液刀的滑动轨道中的移动以带动所述刮片沿所述液刀的长度方向移动。
  2. 一种液刀，其包括：
    一液刀本体，具有一液刀刀口；
    一刮片，所述刮片的一端插入至所述液刀刀口的内部，用于刮拭所述液刀刀口内部的异物；
    一驱动模块，所述驱动模块与所述刮片的另一端相连，用于驱动所述刮片在所述液刀刀口内部移动；
    一控制模块，所述控制模块与所述驱动模块相连，用于发送控制信号至所述驱动模块，以控制所述驱动模块的运行。
  3. 根据权利要求2所述的液刀，其中所述刮片根据所述驱动模块的驱动控制而沿所述液刀本体的长度方向移动，以及调整插入至所述液刀刀口内部的深度。
  4. 根据权利要求2所述的液刀，其中所述驱动模块包括一托架和一连接部，所述托架用于通过一固定件将所述刮片的一端安装在所述托架上；所述连接部分别与所述托架和所述液刀的滑动轨道相连，所述连接部用于通过在所述液刀的滑动轨道中的移动以带动所述刮片沿所述液刀的长度方向移动。
  5. 根据权利要求4所述的液刀，其中所述驱动模块还包括一可调节部，所述可调节部设置在所述连接部和所述液刀的滑动轨道之间，在所述可调节部的一表面上设置一刻度表，所述可调节部用于控制所述连接部根据所述刻度表上的刻度而作移动，从而调整所述刮片插入至所述液刀刀口内部的深度。
  6. 根据权利要求4所述的液刀，其中所述驱动模块还包括一直流无刷电机或一导杆气缸。
  7. 根据权利要求2所述的液刀，其中所述控制模块包括一可编程控制器，所述可编程控制器根据预设参数定时发送控制指令至所述驱动模块，以控制所述刮片在预设定时间内执行刮拭动作。
  8. 根据权利要求2所述的液刀，其中所述刮片的厚度设置在0.5mm～1mm，所述液刀刀口的宽度为1.5mm～2mm。
  9. 根据权利要求2所述的液刀，其中所述刮片的横截面呈三角状。
  10. 一种采用权利要求2所述液刀的自动清洁方法，其中所述方法包括以下步骤：
    （1）一控制模块发送一控制指令至一驱动模块；
    （2）所述驱动模块在接收到所述控制指令之后，触发所述驱动模块的直流无刷电机或导杆气缸开启；
    （3）当所述直流无刷电机或所述导杆气缸开始工作时，带动所述驱动模块中彼此相连的一连接部和一托架，进而使得安装在所述托架上的刮片沿所述液刀的长度方向移动；
    （4）在一预设时间间隔后，所述控制模块再次发送一控制指令至所述驱动模块，以带动所述刮片清洁所述液刀刀口内部的异物。
  11. 根据权利要求10所述的自动清洁方法，其中所述驱动模块包括一可调节部，在所述可调节部的一表面上设置一刻度表；所述方法在步骤（3）之后还包括以下步骤：
    （5）根据所述刻度表的刻度，调整所述刮片插入至所述液刀刀口内部的深度；
    （6）在调整完所述刮片之后，将所述连接部固定在所述可调节部上；
    （7）通过所述控制模块和所述驱动模块再次控制所述刮片刮拭所述液刀刀口内部的异物。
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