WO2014194540A1 - 玻璃基板切割系统 - Google Patents

玻璃基板切割系统 Download PDF

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Publication number
WO2014194540A1
WO2014194540A1 PCT/CN2013/078176 CN2013078176W WO2014194540A1 WO 2014194540 A1 WO2014194540 A1 WO 2014194540A1 CN 2013078176 W CN2013078176 W CN 2013078176W WO 2014194540 A1 WO2014194540 A1 WO 2014194540A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass substrate
suction
suction plate
upstream
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/078176
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English (en)
French (fr)
Inventor
黄海波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/980,032 priority Critical patent/US9434085B2/en
Publication of WO2014194540A1 publication Critical patent/WO2014194540A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/033—Apparatus for opening score lines in glass sheets
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/03—Glass cutting tables; Apparatus for transporting or handling sheet glass during the cutting or breaking operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2249/00—Aspects relating to conveying systems for the manufacture of fragile sheets
    • B65G2249/04—Arrangements of vacuum systems or suction cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2249/00—Aspects relating to conveying systems for the manufacture of fragile sheets
    • B65G2249/04—Arrangements of vacuum systems or suction cups
    • B65G2249/045—Details of suction cups suction cups

Definitions

  • the present invention relates to the field of liquid crystal panel manufacturing technology, and more particularly to a glass substrate cutting system for a liquid crystal panel.
  • a general structure of a conventional glass substrate includes: a TFT substrate bonded to the upper and lower sides, a CF substrate, and liquid crystal molecules poured between the TFT substrate and the CF substrate.
  • the prepared glass substrate is then cut and separated according to the size of different displays.
  • the conventional cutting technique is to cut the TFT substrate and the CF substrate by using the upper cutter head and the lower cutter head at the gap between the upstream suction stage and the downstream suction stage.
  • a cutting line is preliminarily provided on the raw material of the glass substrate 112, and is divided into a finished part 112a (a large area) and a residual part 112b (a small area), and the glass substrate 112 is driven by the moving device 111.
  • the upstream stage 110 is gradually moved to the downstream stage 120, and the TFT substrate and the CF substrate on the upper and lower surfaces of the glass substrate 112 are cut by the upper head 141 and the lower head 142, respectively.
  • the cut residual portion 112b is held by the chuck 160 and then removed.
  • the chuck 160 is controlled by a cylinder (not shown), which makes it difficult to ensure uniformity and stability of the chuck 160.
  • the contact area of the chuck 160 with the residual material portion 112b is small, which further causes unevenness of the residual material portion 112b, so that the residual material portion 112b is easy to jump or slide when separated from the latter finished product portion 112a.
  • the scratch of the cut surface of the finished part 112a is caused, and the finished glass substrate is even scrapped.
  • the present invention provides a glass substrate cutting system, comprising: an upstream suction table for carrying the glass substrate; and a downstream suction table disposed at a front of the upstream suction table for receiving the cut a glass substrate; a moving device, configured to push the glass substrate to move from the upstream suction stage to a downstream suction stage; and installed on the upstream suction stage and downstream suction
  • the upper cutter head and the lower cutter head between the stages are respectively used for cutting the upper and lower surfaces of the glass substrate.
  • the glass substrate cutting system further includes a discharging device installed between the upstream suction table and the downstream suction table for removing the residual material portion cut from the glass substrate, the discharging device comprising: a vacuum pump; a suction plate of the through hole, a suction chamber is connected to the bottom of the suction plate, and the adsorption cavity is respectively connected with the through hole and the vacuum pump, so that the remaining material portion placed on the surface of the suction plate is adsorbed on the suction plate; a displacement assembly coupled to the suction plate for driving movement of the suction plate to which the residual material portion is adsorbed, thereby removing the residual material portion.
  • a discharging device installed between the upstream suction table and the downstream suction table for removing the residual material portion cut from the glass substrate, the discharging device comprising: a vacuum pump; a suction plate of the through hole, a suction chamber is connected to the bottom of the suction plate, and the adsorption cavity is respectively connected with the through hole and the vacuum pump,
  • the suction plate side end is connected to the upstream suction table front end such that the suction plate rotates around the upstream suction table.
  • the suction plate is hinged to the upstream suction table.
  • the displacement assembly comprises at least: a driving mechanism provided with a mechanical arm, the mechanical arm being connected to the suction plate, and the driving mechanism controls the mechanical arm to drive the suction plate to rotate.
  • a collecting tank is further included for collecting the excess material portion removed from the suction plate.
  • a monitoring center connected to the unloading device is further included for controlling the unloading process of the unloading device.
  • the invention also provides a method for cutting a glass substrate by the above glass substrate cutting system, which comprises the following steps:
  • S1 a glass substrate in which a plurality of finished parts and a plurality of residual portions are divided by a cutting line in advance, and is moved from the upstream suction stage to the downstream suction stage by a moving device; the remaining portion of the glass substrate is located at the foremost end of the glass substrate Corresponding to the unloading device;
  • S3 starting the vacuum pump to form a negative pressure on the surface of the suction plate with the adsorption chamber, and adsorbing the residual material portion on the surface of the adsorption plate; then rotating the adsorption plate under the driving of the displacement assembly, Separating the excess material portion from the finished product portion adjacent to the rear;
  • the moving device drives the glass substrate to move to the downstream suction table, and the finished product portion corresponds to the downstream suction table, and is separated from the remaining material portion adjacent to the rear;
  • the suction plate side end is connected to the upstream suction table front end such that the suction plate rotates around the upstream suction table.
  • the suction plate is hinged to the upstream suction table.
  • the displacement assembly comprises at least: a driving mechanism provided with a mechanical arm, the mechanical arm being connected to the suction plate, and the driving mechanism controls the mechanical arm to drive the suction plate to rotate.
  • a collecting tank is further included for collecting the excess material portion removed from the suction plate.
  • the invention provides a discharge device on the glass substrate cutting system, which is directly separated from the original glass substrate by the negative pressure adsorption residual material portion.
  • the suction plate drives the rollover or movement through the mechanical arm, thereby ensuring the flipping speed of the suction plate or The angle is stable; on the other hand, the entire residual material is adsorbed on the surface of the suction plate by the negative pressure, and the contact area is greatly increased, so that the residual force is evenly and stably, and the separation process is carried out under the driving of the original glass substrate.
  • the two cutting faces can avoid mutual contact when separated, avoiding the problem that the cut surface of the finished product is scratched, and greatly improving the quality of the finished product.
  • FIG. 2 is a schematic structural view of a glass substrate cutting system according to Embodiment 1 of the present invention.
  • Fig. 3 is a longitudinal cross-sectional view showing the glass substrate cutting system of the embodiment 1 of the present invention along the advancing direction of the glass substrate.
  • Figure 4 is a cross-sectional view taken along the line A-A of Figure 2 .
  • Fig. 5 is a partial operational state view of a glass substrate cutting system according to Embodiment 1 of the present invention.
  • Fig. 6 is a view showing another operational state of a glass substrate cutting system according to Embodiment 1 of the present invention.
  • Fig. 7 is a partial operational state view of a glass substrate cutting system according to Embodiment 2 of the present invention. detailed description
  • the glass substrate cutting system provided in this embodiment includes:
  • the upstream stage 10 for carrying the glass substrate 12 is gradually sent to the cutting process.
  • the glass substrate 12 is composed of two TFT plates and CF plates which are vertically attached, and a plurality of transverse cutting lines (perpendicular to the advancing direction of the glass substrate 12) and longitudinal cutting lines (parallel to the glass substrate 12) are preset before cutting.
  • the glass substrate 12 is divided into a finished portion 12a (a region having a large division area) and a residual portion 12b.
  • the downstream stage 20 is spaced apart from the front of the upstream stage 10 for receiving the cut glass substrate 12.
  • the moving device 11 is for pushing the glass substrate 12 from the upstream stage 10 to the downstream stage 20.
  • it is defined that the moving direction of the glass substrate 12 from the upstream stage 10 to the downstream stage 20 is forward.
  • the glass substrate cutting system further includes an upper cutter head 41 and a lower cutter head 42 disposed between the upstream suction table 10 and the downstream suction table 20, and the upper cutter head 41 and the lower cutter head 42 are respectively used for the glass substrate The upper and lower sides of the 12 are cut.
  • a gap is formed between the upstream stage 10 and the downstream stage 20, and the lower head 42 projects from the bottom from the bottom to cut the bottom of the glass substrate 12 which is placed above the gap.
  • a collecting tank 50 for collecting the remaining portion 12b cut from the glass substrate 12 is further provided below the gap between the upstream stage 10 and the downstream stage 20.
  • the glass substrate cutting system further includes a discharge device 30 installed between the upstream stage 10 and the downstream stage 20 for removing the residual portion 12b cut from the glass substrate 12.
  • the unloading device 30 includes:
  • a negative pressure source the negative pressure source in this embodiment is realized by a vacuum pump 31.
  • the vacuum pump 31 and the adsorption chamber 32b are connected through a connecting pipe 36. .
  • a negative pressure is formed in the adsorption chamber 32b, and is placed
  • the residual portion 12b on the surface of the suction plate 32 can be adsorbed on the suction plate 32 by the adsorption pressure of the through hole 32a.
  • the suction plate 32 is disposed to be coupled to the upstream suction table 10, that is, the rear end of the suction plate 32 and the front end of the upstream suction table 10 are hinged by a hinge 35, so that the The suction plate 32 is rotated about the upstream suction table 10 within a certain range, and the adsorption remaining portion 12b is separated from the original glass substrate 12 during the rotation of the suction plate 32 and is removed.
  • the displacement assembly 33 includes at least a driving mechanism 33b provided with a mechanical arm 33a.
  • the mechanical arm 33a is connected to the suction plate 32, and the mechanical arm 33a is controlled by the driving mechanism 33b to drive the suction plate 32.
  • S1 Feeding.
  • the glass substrate 12 which has been previously divided into the finished product portion 12a and the residual material portion 12b, is fed into the upstream suction table 10 by a moving device (not shown), and is slowly sucked from the rear of the upstream suction table 10 to the downstream.
  • the table 20 is advanced.
  • the mechanical arm 33a drives the suction plate 32 to the lower side and is attached to the front side of the upstream suction table 10.
  • the residual material portion 12b is separated. After the cutting is completed, the upper cutter head 41 and the lower cutter head 42 are evacuated, and at this time, the residual material portion 12b is not automatically separated from the original glass substrate 12, and external force assistance is required.
  • the driving mechanism 33b is actuated to cause the mechanical arm 33a to drive the suction plate 32 to the upper side to the surface of the suction plate 32 to be flush with the surface of the upstream suction table 10.
  • the vacuum pump 31 is activated to evacuate the adsorption chamber 32b.
  • the negative pressure formed in the adsorption chamber 32b causes the remaining portion 12b placed on the surface of the suction plate 32 to be adsorbed to the suction plate 32 through the through hole 32a.
  • the mechanical arm 33a again drives the suction plate 32 to the lower side, and gradually sticks to the front side of the upstream suction table 10.
  • the glass substrate 12 is deformed and cut along the transverse cutting line. Opening, the residual material portion 12b is separated from the finished product portion 12a at the rear.
  • the robot arm 33a continues to drive the suction plate 32 Continuing to roll over, the suction plate 32 is aligned with the collecting tank 50, the vacuum pump 31 is suspended, the air pressure in the adsorption chamber 32b is immediately restored to atmospheric pressure, and the residual portion 12b on the surface of the suction plate 32 loses the adsorption force and slides into the collecting tank 50, sucking Plate 32 completes a discharge process.
  • the finished product portion 12a is separated. After the cutting and unloading of the excess material portion 12b is completed, the moving device 11 can be activated again to push the glass substrate 12 to move toward the downstream suction table 20. At this time, the finished product portion 12a gradually protrudes from the upstream suction table 10 to reach the downstream suction table 20 until the foremost transverse cutting line at the bottom of the glass substrate 12 passes over the front end of the upstream suction table 10, and the upper cutter head 41 and the lower cutter head 42 are activated again. The glass substrate 12 is cut. After the cutting is completed, the gripping device (not shown) on the downstream suction table 20 can drive the finished portion 12a to move forward, so that the finished portion 12a is separated from the latter remaining portion 12b.
  • the unloading device of the embodiment can also communicate with a monitoring center (not shown), and adjust relevant parameters according to actual work requirements (such as the width of the suction plate and the vacuum degree of adsorption). , the length of the arm and the speed of movement, etc.) to control the suction plate to better adapt to the cutting and unloading needs of the specific glass substrate.
  • the suction plate 32 of the unloading device 30 may not be directly hinged to the front end of the upstream suction table 10, but may be integrally moved by the mechanical arm 33a to complete the adsorption residual material.
  • the portion 12b is separated from the original glass substrate 12 and discharged.
  • a roller 70 is added above the glass substrate 12 to face the lower cutter head 42, and the cutting order of the upper cutter head 41 and the lower cutter head 42 can be adjusted to meet the requirements of the glass substrate 12 of different forms.
  • the CF plate of the glass substrate 12 may be first cut by the lower cutter head 42.
  • the roller 70 presses down the glass substrate 12, and the supporting force exerted on the glass substrate 12 by the lower cutter head 42 is formed.
  • a pair of balancing forces keeps the glass substrate 12 from being damaged.
  • the rising suction plate 32 is flush with the upstream table 10, and the upper cutter head 41 is pressed down to complete the cutting of the TFT plate.
  • Other steps can be referred to in Embodiment 1.
  • the invention adds a discharging device on the glass substrate cutting system, and directly separates from the original glass substrate through the negative pressure adsorption residual material portion, and on the one hand, the suction plate drives the side flipping or moving through the mechanical arm to protect It proves that the flipping speed or angle of the suction plate is stable; on the other hand, the entire residual material portion is adsorbed on the surface by the suction plate, and the contact area is greatly increased compared with the clamping method of the chuck to the remaining material portion, so that The force of the material part is even and stable.
  • the two cutting surfaces can avoid mutual contact when separated, avoiding the problem that the cut surface of the finished product is scratched, and greatly improving the quality of the finished product.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

一种玻璃基板切割系统，包括上游吸台、下游吸台、移动装置、上刀头、下刀头，以及装设于上游吸台与下游吸台之间的卸料装置。该卸料装置包括：真空泵；设有通孔的吸板，吸板底部连接有吸附腔，吸附腔分别与通孔、真空泵连通，使置于吸板表面的余料部吸附在吸板上；与吸板连接的位移组件，用于驱动吸附有所述余料部的吸板转动，从而卸除所述余料部。

Description

玻璃基板切割系统
技术领域
本发明涉及液晶面板制作技术领域， 尤其是一种液晶面板的玻璃基 板切割系统。
背景技术
现有玻璃基板一般的结构包括： 上下贴合的 TFT基板、 CF基板， 以及灌注于该 TFT基板、 CF基板之间的液晶分子。 对制作好的玻璃基 板再按照不同显示器的尺寸进行切割分离。现有的切割技术是在上游吸 台、 下游吸台之间的空隙处， 采用上刀头、 下刀头分别对 TFT基板、 CF基板进行切割。
如图 1所示，玻璃基板 112原材上预设有切割线，划分为成品部 112a (面积较大部分） 及余料部 112b (面积较小部分）， 在移动装置 111驱 动下玻璃基板 112逐渐由上游吸台 110向下游吸台 120移动， 经过由上 刀头 141、 下刀头 142分别对玻璃基板 112上下两面的 TFT基板、 CF 基板进行切割。 切割出的余料部 112b通过卡盘 160夹持后被卸除。 该 卡盘 160是由气缸（图中未示出）控制， 导致卡盘 160动作一致性和稳 定性难以保证。 并且， 卡盘 160通过夹取方式与余料部 112b的接触面 积较小， 进一步造成余料部 112b受力不均， 使得余料部 112b在与后一 成品部 112a分离时，容易跳动或滑动，造成成品部 112a切割面的划伤， 甚至使成品玻璃基板报废。
发明内容
为克服上述问题， 本发明提供一种玻璃基板切割系统， 包括： 上游 吸台， 用于承载所述玻璃基板； 下游吸台， 间隔设置于所述上游吸台前 方， 用于接收经过切割后的玻璃基板； 移动装置， 用于推动所述玻璃基 板从所述上游吸台往下游吸台移动； 以及装设于所述上游吸台和下游吸 台之间的上刀头、 下刀头， 所述上刀头、 下刀头分别用于对所述玻璃基 板的上、 下两面进行切割。
玻璃基板切割系统还包括装设于所述上游吸台与下游吸台之间的 卸料装置， 用于卸除从玻璃基板切割出的余料部， 所述卸料装置包括： 真空泵； 设有通孔的吸板， 所述吸板底部连接有吸附腔， 所述吸附腔分 别与所述通孔、 所述真空泵连通， 使置于所述吸板表面的余料部吸附在 吸板上； 与所述吸板连接的位移组件， 用于驱动吸附有所述余料部的吸 板移动， 从而卸除所述余料部。
优选地， 所述吸板一侧端与所述上游吸台前端连接， 使得所述吸板 绕所述上游吸台转动。
优选地， 所述吸板与所述上游吸台铰接。
优选地， 所述位移组件至少包括： 设有机械臂的驱动机构， 所述机 械臂与所述吸板连接， 通过所述驱动机构控制所述机械臂带动所述吸板 转动。
优选地，还包括集料槽，用于收集从所述吸板上卸除的所述余料部。 优选地， 还包括与所述卸料装置相连的监控中心， 用于控制所述卸 料装置的卸料过程。
本发明还提供上述玻璃基板切割系统进行玻璃基板切割的方法， 其 中， 包括如下步骤：
S1 :将预先通过切割线划分出若干个成品部和若干个余料部的玻璃 基板， 通过移动装置从上游吸台后方往下游吸台方向推进； 使位于玻璃 基板最前端的余料部与所述卸料装置对应；
S2: 使所述上刀头、 下刀头对准所述切割线， 对所述玻璃基板进行 切割；
S3： 启动所述真空泵， 使带有吸附腔的吸板表面形成负压， 将所述 余料部吸附在所述吸附板表面； 然后使所述吸附板在所述位移组件的带 动下转动， 使所述余料部与在后相邻的成品部分离； S4: 所述移动装置的驱动所述玻璃基板往所述下游吸台移动， 并使 所述成品部与所述下游吸台对应， 并与在后相邻的余料部分离；
重复 S1~S4若干次。
优选地， 所述吸板一侧端与所述上游吸台前端连接， 使得所述吸板 绕所述上游吸台转动。
优选地， 所述吸板与所述上游吸台铰接。
优选地， 所述位移组件至少包括： 设有机械臂的驱动机构， 所述机 械臂与所述吸板连接， 通过所述驱动机构控制所述机械臂带动所述吸板 转动。
优选地，还包括集料槽，用于收集从所述吸板上卸除的所述余料部。 本发明在的玻璃基板切割系统上增设卸料装置，通过负压吸附余料 部直接从原玻璃基板上分离， 一方面吸板通过机械臂带动侧翻或移动， 保证了吸板的翻转速度或角度均具有稳定性； 另一方面， 整个余料部通 过负压吸附在吸板表面，接触面积大大增加，使得余料部受力均匀稳定， 在吸板带动下与原玻璃基板分离过程中， 两切割面在分离时能避免相互 接触， 避免了成品的切割面被划伤的问题， 大大提高成品的质量。
附图说明
图 1为现有技术的玻璃基板切割系统。
图 2为本发明实施例 1玻璃基板切割系统的结构示意图。
图 3为本发明实施例 1玻璃基板切割系统沿玻璃基板前进方向的纵 向剖面图。
图 4为图 2的 A-A向的剖视图。
图 5为本发明实施例 1玻璃基板切割系统局部运行状态图。
图 6为本发明实施例 1玻璃基板切割系统局部另一运行状态图。 图 7为本发明实施例 2玻璃基板切割系统局部运行状态图。 具体实施方式
下面， 将结合附图对本发明实施方式进行详细介绍。
如图 2所示， 本实施例提供的玻璃基板切割系统， 包括：
上游吸台 10，用于承载所述玻璃基板 12逐渐送往切割工序。其中， 玻璃基板 12由两上下贴合的 TFT板、 CF板构成，在切割前已经预设好 若干条横向切割线 （垂直于玻璃基板 12前进方向） 和纵向切割线 （平 行于玻璃基板 12前进方向），将玻璃基板 12划分了成品部 12a (划分面 积较大的区域） 和余料部 12b。
下游吸台 20， 间隔设置于所述上游吸台 10前方， 用于接收经过切 割后的玻璃基板 12。
移动装置 11，用于推动所述玻璃基板 12从所述上游吸台 10往下游 吸台 20移动。 为了更好地说明本实施例， 定义玻璃基板 12从上游吸台 10送往下游吸台 20的移动方向为向前方。
玻璃基板切割系统进一步包括装设于所述上游吸台 10和下游吸台 20之间的上刀头 41和下刀头 42， 上刀头 41和下刀头 42分别用于对所 述玻璃基板 12的上、 下两面进行切割。 上游吸台 10和下游吸台 20之 间设有一定空隙， 下刀头 42从该空隙中从下而上伸出， 对架设在空隙 上方的玻璃基板 12的底部进行切割。
在上游吸台 10和下游吸台 20之间的空隙下方，还设有一集料槽 50， 用于收集从玻璃基板 12上切割出的余料部 12b。
玻璃基板切割系统还包括装设于所述上游吸台 10与下游吸台 20之 间的卸料装置 30， 用于卸除从玻璃基板 12切割出的余料部 12b。 可结 合图 2、 图 3、 图 4所示， 所述卸料装置 30包括：
一负压源， 本实施中负压源是采用真空泵 31实现。
设有通孔 32a的吸板 32， 该吸板 32底部设有吸附腔 32b， 所述通 孔 32a与所述吸附腔 32b连通； 所述真空泵 31与所述吸附腔 32b通过 一连接管 36连通。 当真空泵 31启动时， 吸附腔 32b内形成负压， 置于 所述吸板 32表面的余料部 12b便能通过通孔 32a的吸附压力被吸附在 吸板 32上。 为了更方便地控制吸板 32工作， 设置所述吸板 32与所述 上游吸台 10连接， 即该吸板 32的后端与所述上游吸台 10前端通过铰 件 35铰接， 使得所述吸板 32绕所述上游吸台 10在一定范围内转动， 在吸板 32的转动过程中吸附余料部 12b与原玻璃基板 12分离并卸除。
为了控制吸板 32的转动时机和角度， 驱动吸附有所述余料部 12b 的吸板 32移动、卸除所述余料部 12b设置一位移组件 33与所述吸板 32 连接。其中，该位移组件 33至少包括：设有机械臂 33a的驱动机构 33b， 所述机械臂 33a与所述吸板 32连接， 通过所述驱动机构 33b控制所述 机械臂 33a带动所述吸板 32转动。
下面， 介绍这种玻璃基板切割系统的工作流程：
S1 : 送料。 结合图 5所示， 将预先划分好成品部 12a和余料部 12b 的玻璃基板 12通过移动装置 （图中未示出） 送入上游吸台 10， 缓缓从 上游吸台 10后方往下游吸台 20方向推进， 此时， 机械臂 33a带动吸板 32向下侧翻， 贴向上游吸台 10前侧。
S2: 切割。位于最前方的余料部 12b逐渐伸出上游吸台 10的前端， 当最前方的横向切割线越过上游吸台 10前端， 暂停移动装置 11， 使玻 璃基板 12固定。然后启动上刀头 41、下刀头 42同时对准预设的横向切 割线对玻璃基板 12进行切割。
S3： 分离余料部 12b。 切割完成后， 撤离上刀头 41、 下刀头 42，此 时余料部 12b不会自动从原玻璃基板 12上脱落分离， 需要外力帮助。 结合图 6所示， 启动驱动机构 33b， 使机械臂 33a带动吸板 32向上侧翻 至吸板 32表面与上游吸台 10表面平齐。 此时， 启动真空泵 31对吸附 腔 32b抽真空。 吸附腔 32b内形成的负压， 使置于吸板 32表面的余料 部 12b通过通孔 32a被吸附到吸板 32上。 结合图 3所示， 机械臂 33a 再次带动吸板 32向下侧翻， 逐渐贴向上游吸台 10前侧， 在吸板 32侧 翻过程中带动玻璃基板 12发生形变并沿横向切割线处断开， 使得余料 部 12b与其后方的成品部 12a实现分离。 机械臂 33a继续带动吸板 32 继续侧翻， 使吸板 32对准集料槽 50， 暂停真空泵 31， 使吸附腔 32b内 气压即时恢复大气压， 吸板 32表面的余料部 12b失去吸附力滑入集料 槽 50中， 吸板 32完成一次卸料过程。
S4: 分离成品部 12a。 完成一次余料部 12b的切割和卸除后， 可再 次启动移动装置 11， 推动玻璃基板 12往下游吸台 20移动。此时， 成品 部 12a逐渐伸出于上游吸台 10， 达到下游吸台 20， 直到玻璃基板 12底 部的最前的横向切割线越过上游吸台 10前端， 启动上刀头 41、 下刀头 42再次对玻璃基板 12进行切割。完成切割后可由下游吸台 20上的夹持 装置 （图中未示出）， 带动成品部 12a往前移动， 使得成品部 12a与后 一余料部 12b分离。
重复 S1~S4， 直到一块完整的玻璃基板 12的成品部 12a完全被分 离。 其中， 为了更好地控制卸料过程， 本实施例的卸料装置还可以与监 控中心 （图中未示出）连通， 根据实际工作需要调整相关参数 （例如吸 板的宽度、 吸附的真空度、 机械臂的长度及运动速度等）从而控制吸板 更好地适应具体玻璃基板的切割和卸料需要。
实施例 2
在本实施例中， 如图 7所示， 这种卸料装置 30的吸板 32还可以不 直接铰接于上游吸台 10前端， 而是在机械臂 33a的带动下整体移动， 完成吸附余料部 12b从原玻璃基板 12上分离并卸。
另外， 在玻璃基板 12上方增设一滚轴 70， 与下刀头 42相对， 可以 调整上刀头 41、 下刀头 42的切割顺序， 满足不同形态的玻璃基板 12 需要。 例如， 可先利用下刀头 42对玻璃基板 12的 CF板进行切割， 下 刀头 42切割时， 滚轴 70下压玻璃基板 12， 与下刀头 42施加在玻璃基 板 12上的支持力形成一对平衡力， 保持玻璃基板 12不受破损。 待 CF 板完成切割， 上升吸板 32与上游吸台 10台面齐平， 下压上刀头 41，完 成 TFT板的切割。 其他步骤可参考实施例 1所示。
本发明在玻璃基板切割系统上增设卸料装置，通过负压吸附余料部 直接从原玻璃基板上分离， 一方面吸板通过机械臂带动侧翻或移动， 保 证了吸板的翻转速度或角度均具有稳定性； 另一方面， 整个余料部被吸 板吸附在表面， 与卡盘对余料部的夹取方式相比， 接触面积大大增加， 使得余料部受力均匀稳定， 在吸板带动下与原玻璃基板分离过程中， 两 切割面在分离时能避免相互接触， 避免了成品的切割面被划伤的问题， 大大提高成品的质量。
尽管已经参照其示例性实施例具体显示和描述了本发明，但是本领 域的技术人员应该理解， 在不脱离权利要求所限定的本发明的精神和范 围的情况下， 可以对其进行形式和细节上的各种改变。

Claims

权利要求书
1、 一种玻璃基板切割系统， 包括
上游吸台， 用于承载所述玻璃基板；
下游吸台， 间隔设置于所述上游吸台前方， 用于接收从玻璃基板切 割出的成品部；
移动装置， 用于推动所述玻璃基板从所述上游吸台往下游吸台移 动；
以及装设于所述上游吸台和下游吸台之间的上刀头、 下刀头， 所述 上刀头、 下刀头分别用于对所述玻璃基板的上、 下两面进行切割；
其中， 还包括装设于所述上游吸台与下游吸台之间的卸料装置， 用 于卸除从玻璃基板切割出的余料部， 所述卸料装置包括：
真空泵；
设有通孔的吸板， 所述吸板底部连接有吸附腔， 所述吸附腔分别与 所述通孔、 所述真空泵连通， 使置于所述吸板表面的余料部吸附在吸板 上；
与所述吸板连接的位移组件， 用于驱动吸附有所述余料部的吸板转 动， 从而卸除所述余料部。
2、 根据权利要求 1所述玻璃基板切割系统， 其中， 所述吸板一侧 端与所述上游吸台前端连接， 使得所述吸板绕所述上游吸台转动。
3、 根据权利要求 2所述玻璃基板切割系统， 其中， 所述吸板与所 述上游吸台铰接。
4、 根据权利要求 1所述玻璃基板切割系统， 其中， 所述位移组件 至少包括： 设有机械臂的驱动机构， 所述机械臂与所述吸板连接， 通过 所述驱动机构控制所述机械臂带动所述吸板转动。
5、 根据权利要求 1所述玻璃基板切割系统，其中，还包括集料槽， 用于收集从所述吸板上卸除的所述余料部。
6、 根据权利要求 1所述玻璃基板切割系统， 其中， 还包括与所述 卸料装置相连的监控中心， 用于控制所述卸料装置的卸料过程。
7、 权利要求 1所述玻璃基板切割系统进行玻璃基板切割的方法， 其中， 包括如下步骤：
S1 :将预先通过切割线划分出若干个成品部和若干个余料部的玻璃 基板， 通过移动装置从上游吸台后方往下游吸台方向推进； 使位于玻璃 基板最前端的余料部与所述卸料装置对应；
S2: 使所述上刀头、 下刀头对准所述切割线， 对所述玻璃基板进行 切割；
S3： 启动所述真空泵， 使带有吸附腔的吸板表面形成负压， 将所述 余料部吸附在所述吸附板表面； 然后使所述吸附板在所述位移组件的带 动下转动， 使所述余料部与在后相邻的成品部分离；
S4: 所述移动装置的驱动所述玻璃基板往所述下游吸台移动， 并使 所述成品部与所述下游吸台对应， 并与在后相邻的余料部分离；
重复 S1~S4若干次。
8、 根据权利要求 7所述切割方法， 其中， 所述吸板一侧端与所述 上游吸台前端连接， 使得所述吸板绕所述上游吸台转动。
9、 根据权利要求 8所述切割方法， 其中， 所述吸板与所述上游吸 台铰接。
10、 根据权利要求 7所述切割方法， 其中， 所述位移组件至少包 括： 设有机械臂的驱动机构， 所述机械臂与所述吸板连接， 通过所述驱 动机构控制所述机械臂带动所述吸板转动。
11、 根据权利要求 7所述切割方法， 其中， 还包括集料槽， 用于收 集从所述吸板上卸除的所述余料部。
PCT/CN2013/078176 2013-06-04 2013-06-27 玻璃基板切割系统 Ceased WO2014194540A1 (zh)

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