KR20100059204A

KR20100059204A - Scribing apparatus of glass panel

Info

Publication number: KR20100059204A
Application number: KR1020080117892A
Authority: KR
Inventors: 장희동
Original assignee: 주식회사 탑 엔지니어링
Priority date: 2008-11-26
Filing date: 2008-11-26
Publication date: 2010-06-04

Abstract

PURPOSE: A scribing apparatus of a glass panel is provided to prevent the operation of a scribing process without a scribing wheel by automatically verifying whether the scribing wheel is installed. CONSTITUTION: A wheel holder sensor is installed on a scribing head(20) or a wheel holder(30). A controller(50) initializes a parameter which is a reference of a replace period for a scribing wheel(10). A display unit(60) is connected to the controller. The display unit displays a parameter value which is a reference for the replace period. A wheel sensor(70) detects the existence of the scribing wheel.

Description

Scribing device of glass panel {SCRIBING APPARATUS OF GLASS PANEL}

The present invention relates to a scribing apparatus of a glass panel, and more particularly, to detect the presence or absence of a scribing wheel to ensure an initialization setting, and to detect the presence or absence of a scribing wheel to scribe the scribing head. It relates to a scribing apparatus of a glass panel that does not work when the wheel is not mounted.

In general, an LCD, an organic EL panel, an inorganic EL panel, a transmissive projector substrate, a reflective projector substrate, and the like used as a flat panel display panel are called a brittle mother glass panel (or mother substrate) such as glass. , Hereinafter referred to as a 'glass panel'.

The cutting process of the glass panel may include a scribing process of forming a scribing line on the surface of the substrate by using a tool made of diamond or the like having a higher hardness than the glass panel, and a scribing process formed on the glass panel. Breaking process of cutting around the line.

A general example showing the configuration of a scribing wheel, a wheel holder, and a scribing head among scribing apparatuses performing the scribing process is shown in FIG. 1.

As shown, the conventional scribing device (A) is a scribing wheel (5) formed in a circular shape to form a crack while rotating in contact with the glass substrate, the scribing wheel (5) is rotatable And a scribing head 1 to which the wheel holder 4 is mounted.

At this time, a bearing 4-1 is interposed between the wheel holder 4 and the scribing head 1, and the wheel holder 4 is free to rotate with respect to the scribing head 1. have.

The scribing head 1 is provided with a fixing bolt 3 for fixing the outer circumferential surface of the bearing 4-1.

According to the scribing apparatus configured as described above, the surface of the glass panel is provided by the scribing head 1 moving along the cutting line of the glass panel while the scribing wheel 5 is pressed against the surface of the glass panel. Cracks will form in the

In general, the scribing wheel that contacts the glass panel to form cracks in the scribing process has a predetermined lifetime. In addition, if scribing is performed by the scribing wheel that has exceeded the service life, the quality of the product is adversely affected, such as a bad cutting surface. Therefore, in order to maintain the quality after the cutting process of the glass panel, the scribing wheel must be replaced with a new scribing wheel before reaching its life.

The lifetime of the scribing wheel is usually determined by the total scribing length on the glass panel processed by the scribing wheel. The total scribing length is the total length of the scribing lines scribed by the corresponding scribing wheel, since the length of the scribing lines on each glass panel is predetermined. In this process the total scribing length is automatically calculated and displayed.

On the other hand, when the life of the scribing wheel 5 has to be replaced due to wear or the like, the fixing bolt 3 is loosened to separate the bearing 4-1 from the scribing head 1 and then the other. New bearings with wheel holders must be fitted.

In this case, in the related art, when the scribing wheel is replaced, a variable which is a reference of the replacement cycle such as the total scribing length is manually initialized.

However, there is a case in which it is difficult to accurately determine the time of replacement of the replaced scribing wheel when the operator does not set the initialization of the variable which is a reference of the replacement cycle of the scribing wheel by mistake.

In addition, in the related art, a wheel holder without a scribing wheel is mounted on the scribing head due to a mistake or carelessness of the operator, which causes damage to the wheel holder or the scribing head as well as the glass panel during the scribing operation. There was a case.

The present invention has been made to solve the above-described problems, the object of the present invention is to automatically determine the replacement cycle of the scribing wheel is made by the initialization setting of the variable that is the reference of the replacement cycle when the scribing wheel is replaced automatically The present invention provides a scribing apparatus for a glass panel.

It is also an object of the present invention to provide a scribing apparatus of a glass panel that can automatically determine whether the scribing wheel is mounted, thereby preventing scribing without the scribing wheel. have.

In order to achieve the above object, the scribing apparatus of the glass panel according to the present invention,

A scribing head for forming a scribing line on the glass panel and a wheel holder mounted to the scribing head,

A wheel holder sensor mounted on one of the scribing head or the wheel holder;

A control unit which receives a detection signal from the wheel holder detection sensor and initializes a variable which is a reference of a replacement cycle of a scribing wheel;

And a display unit connected to the control unit and displaying a variable value as a reference of the replacement cycle.

Here, the scribing apparatus of the glass panel of the present invention preferably further comprises a wheel sensor provided in the wheel holder to detect the presence or absence of the mounting of the scribing wheel.

Preferably, the wheel holder sensor and the wheel sensor are proximity sensors such as an optical sensor or a laser sensor.

The wheel sensor is preferably installed inside the wheel mounting groove formed in the wheel holder.

According to the present invention of the configuration as described above, the initial setting of the replacement cycle is automatically made when the scribing wheel is replaced, eliminating the possibility of mistakes due to operator's carelessness and accurately grasp the replacement cycle of the scribing wheel. have.

In addition, according to the present invention, by automatically determining whether or not the scribing wheel is mounted, it is possible to reliably prevent the scribing is performed in the state that the scribing wheel is not mounted, thereby preventing the possibility of product defects or device damage. I can sweep.

Hereinafter, with reference to the accompanying Figures 2 to 4 will be described in detail a preferred embodiment of the present invention.

As shown in FIG. 2, the scribing apparatus 100 of the glass panel according to the present invention includes a scribing head 20, a wheel holder 30 mounted to the scribing head 20, It is provided with a scribing wheel 10 rotatably installed in the wheel holder 30. The wheel holder 30 is installed in the scribing head 20 via a bearing 31.

According to an embodiment of the invention, as shown in Figures 2 and 3, the wheel holder detection on either side of the scribing head 20 or the wheel holder 30 mounted to the scribing head 20 The sensor 40 or 40 'is provided.

The wheel holder detecting sensor 40 or 40 'is a sensor for detecting whether the wheel holder 30 is mounted on the scribing head 20, but a proximity sensor such as an optical sensor or a laser sensor is preferable. There is no need to limit it, and of course, various well-known sensors can be applied.

As shown in FIG. 2, the wheel holder detection sensor 40 may be accommodated in a groove 22 formed in the surface of the scribing head 20, in which case the wheel holder detection sensor may be a scribing head ( It may be connected to the control unit 50 to be described later by a signal line or wirelessly passing through the through-hole (not shown) formed in the 20.

Similarly, the wheel holder detection sensor 40 'may be attached to the surface of the wheel holder 30, in which case the wheel holder detection sensor may be connected to the controller 50 by a signal line or wirelessly. Of course, the wheel holder sensor 40 ′ may be accommodated in a groove (not shown) formed in the surface of the wheel holder 30.

In addition, according to an embodiment of the present invention, the controller 50 for initializing the replacement cycle data of the scribing wheel 10 in response to the signal from the wheel holder sensor 40 or 40 ', and the controller 50 And a display unit 60 for displaying data.

The control unit 50 receives a signal indicating a detached state between the scribing head 20 and the wheel holder 30 from the wheel holder detecting sensor 40 or 40 'and initializes the replacement cycle data while simultaneously displaying the display unit. Send a digital signal to 60.

The display unit 60 may be a general apparatus such as an LCD monitor as a device for indicating a variable value that is a reference for a replacement cycle such as the total scribing length processed by the scribing wheel 10. The meaning of the total scribing length is as described above.

According to this configuration, the signal is transmitted to the control unit 50 by the wheel holder detecting sensor 40 or 40 'at the moment when the wheel holder 30 is mounted on the scribing head 20, which becomes a reference for the replacement cycle. Initialize the variable.

This focuses on the fact that the wheel holder 30 is removed from the scribing head 20 only when the scribing wheel 10 is replaced from the wheel holder 30.

Meanwhile, as shown in FIGS. 2 and 4, the scribing head 20 is provided with a wheel sensor 70 to determine whether the scribing wheel 10 is mounted on the wheel holder 30. It is good to be able to check.

The wheel sensor 70 is installed inside the wheel mounting groove 32 in which the scribing wheel 10 is installed, but the mounting position thereof may be changed according to the type of sensor used. When installed inside the wheel mounting groove 32, there is no case of contacting the surrounding structure during the scribing operation.

In this case, the wheel sensor 70 may be connected to the controller 50 by a signal line or wirelessly passing through a separate through hole (not shown) formed in the wheel holder 30.

The wheel sensor 70 is preferably a proximity sensor such as an optical sensor or a laser sensor, but is not necessarily limited thereto, and sensors of various known principles may be applied.

Since the wheel detecting sensor 70 can recognize whether the scribing wheel 10 is mounted, the scribing wheel 10 is unintentionally prevented from being scribed by a worker. can do.

1 is a side view showing a scribing apparatus of a general glass panel.

2 is a block diagram showing a scribing apparatus of the glass panel according to the present invention.

3 is a top perspective view of the wheel holder and the scribing wheel in FIG. 2.

4 is a bottom perspective view of the wheel holder and the scribing wheel in FIG. 2.

Explanation of the major components

10 ... scribing wheel

20 ... scribing head

30 ... wheel holder

40, 40 '... wheel holder sensor

50 ... control unit

60 ... Display

70 ... wheel sensor

100 ... Glass panel scribing device

Claims

A scribing apparatus for a glass panel having a scribing head and a wheel holder mounted to the scribing head,

A wheel holder sensor mounted on one of the scribing head or the wheel holder;

And a display unit connected to the control unit and displaying a variable value which is a reference of a replacement cycle.

The method of claim 1,

The scribing apparatus of the glass panel, characterized in that it further comprises a wheel sensor provided in the wheel holder to detect the mounting of the scribing wheel.

The method of claim 2,

The wheel holder sensor and the wheel sensor is a scribing device of the glass panel, characterized in that the proximity sensor.

The method according to claim 2 or 3,

The wheel sensing sensor is a scribing apparatus of the glass panel, characterized in that installed on the inside of the wheel mounting groove formed in the wheel holder.