KR20180094628A - Laser marking device - Google Patents

Abstract

The present invention relates to a laser marking device for quality control of a touch panel. It is an object of the present invention to provide a laser marking device for marking a management number at one side of a touch panel to quickly cope with a possible error when the touch panel is manufactured, thereby reinforcing product competitiveness by lowering a defective rate during mass production of touch panels. For this, the laser marking device for marking a management number at one side of a touch panel disposed at the front surface of an electronic product comprises: a frame (10) having a first table (110) and a second table (120) mounted on one side of the first table (110) to be spaced apart from the first table (110) at a predetermined interval; at least one seating part (20) mounted on the first table (110) of the frame (10) to provide conveyance force to make the touch panel (2) go into and out of an extraction area and a marking area and to locate a marking portion of the touch panel (2) within an error range; a marking part (30) mounted on the second table (120) of the frame (10) to mark a management number on the marking portion of the touch panel (2) entering by the seating part (20); and a control unit (40) for controlling operational states of the table (10), the seating part (20) and the marking part (30).

Description

[0001] LASER MARKING DEVICE [0002] LASER MARKING DEVICE [

The present invention relates to a laser marking apparatus for quality control of a touch panel, and more particularly, to a laser marking apparatus for marking a control number on one side of a touch panel, And more particularly, to a laser marking apparatus for quality control of a touch panel which improves the competitiveness of a product by lowering a defect rate in mass production of a touch panel.

In general, as the spread of smart phones, tablet PCs, and IPTVs is accelerating, there is a growing need for a touch function in which a human hand becomes a direct input device without a separate input device such as a keyboard or a remote control. In addition, not only specific point recognition but also multi-recognition capable of handwriting is additionally required.

The touch panel having the above functions is classified according to the signal detection method as follows.

That is, a resistive type in which a position depressed by a pressure in a state where a direct voltage is applied is sensed through a change in a current or a voltage value, and a resistive type in which a capacitance coupling is used in a state where an AC voltage is applied And an electromagnetic induction type in which a capacitive type and a selected position are sensed as a change in voltage in a state where a magnetic field is applied.

In the case of the resistive film type and capacitive type touch panel, a transparent conductive film such as ITO film is used to recognize whether or not the touch is caused by electrical contact or capacitance change. However, since the transparent conductive film has a high resistance of more than 150 ohm / square, the sensitivity of the transparent conductive film tends to decrease at the time of enlargement, and it is difficult to commercialize the ITO film as the size of the screen increases. In order to overcome this problem, attempts have been made to implement a large-sized metal pattern having a high conductivity.

When the touch panel is formed of a metal pattern, a fine pattern is provided on a screen portion, and a conductive pattern is provided on a relatively wide area in a pad portion to be connected to a power source. Therefore, when the photolithography method is used to form them all at once, there is a problem that the cost is high.

In addition, the touch panel is employed in electronic products in consideration of problems of signal amplification, differences in resolution, difficulty in design and processing technology, optical characteristics, electrical characteristics, mechanical characteristics, environmental characteristics, input characteristics, durability and economical efficiency.

However, in the conventional touch panel, it is not possible to easily grasp which part of the touch panel is defective due to manufacturing complexity or the like. Therefore, when a defect occurs, it is necessary to find a defective part in a state where the entire manufacturing line is stopped There is a problem that it is difficult.

Korean Patent Publication No. 10-2012-56465 (published on June 4, 2012) Korean Patent Publication No. 10-1359737 (Announcement of Nov. 11, 2014) Korean Patent Publication No. 10-2016-43234 (published on April 21, 2016)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a laser marking apparatus for marking a control number on one side of a touch panel, The present invention provides a laser marking apparatus for quality control of a touch panel that improves product competitiveness by reducing defective rate of mass production of a touch panel.

According to another aspect of the present invention, there is provided a marking device for marking a control number on one side of a touch panel to facilitate management of a touch panel formed on a front surface of an electronic device, the marking device comprising: A frame including a first table and a second table spaced apart from each other at one side of the first table; At least one seating part mounted on a first table of the frame for providing a conveying force to advance and retract the touch panel to the extraction area and the marking area and correcting the marking part of the touch panel to be located within the error range; A marking unit mounted on a second table of the frame for marking a control number on a marking part of the touch panel which is entered by the seating part; And a control unit for controlling an operation state of the table, the seating unit, and the marking unit.

In the present invention, the mounting portion includes a first guide block formed on the first table and providing a reciprocating transfer force in the Y-axis direction; A first transfer table mounted on the first guide block and reciprocated; An X-axis transfer module configured on the first transfer table to perform accurate correction in the X-axis direction; A Y-axis transfer module configured on the first transfer table to perform accurate correction in the Y-axis direction; A rotation module configured on the first transfer table to perform precise correction with respect to the rotational direction; And a seating jig formed at the uppermost portion of the first transfer table for supporting the touch panel to be stably fixed.

In the present invention, the seating jig includes: a stationary table; A seating guide which is formed at one side of the fixed table and supports the touch panel so as to maintain the fixed state of the touch panel; And a vacuum to provide a vacuum pressure to the seating guide to hold the touch panel in a fixed state.

In the present invention, the seating guide includes: a bottom surface having a plurality of vacuum holes formed therein so that the vacuum pressure provided through the vacuuming can smoothly operate; A sidewall configured to stand upright at a rim of the bottom surface; A top wall formed to have a predetermined width at an upper end of the side wall and supporting the touch panel in a stable manner while being supported by the bottom surface; And an opening formed at one end of the bottom surface to allow the touch panel to be guided in and out of the side wall.

In the present invention, the marking unit includes: laser irradiation means for irradiating a laser to mark a control number on the marking portion of the touch panel; A photographing means for photographing a marking portion of the touch panel that is seated on the seating portion and transmitting the acquired image to the control portion to support the marking portion of the touch panel to be corrected within an error range; And a fixing bracket formed on one side of the laser irradiating means and supporting the laser beam to reciprocate along the second table of the frame.

According to the present invention, a dedicated laser marking device for marking a control number on one side of the touch panel can be constructed, and it is possible to quickly respond to an error that may occur in manufacturing a expensive touch panel, And the product competitiveness is enhanced.

Also, the X-axis and Y-axis transfer module and the rotary module are mounted on the seating portion on which the touch panel is seated, and the marking portion of the touch panel is corrected to be positioned within the error range. There is an effect of minimizing.

1 is a schematic perspective view of a laser marking apparatus according to the present invention;
2 is a schematic front view of a laser marking apparatus according to the present invention;
3 is a schematic side view of a laser marking apparatus according to the present invention.
4 is a schematic plan view of a laser marking apparatus according to the present invention.
5 is a schematic operational view of a laser marking apparatus according to the present invention.
FIG. 6 is an enlarged view showing a configuration of a seating jig according to the present invention. FIG.
7 is an enlarged view of a seating guide according to the present invention;
8 is a schematic operational view showing a correction state for a seat part according to the present invention;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 8, the laser marking apparatus 1 of the present invention is provided with a control number or serial number (hereinafter, referred to as 'control number') for quality control on one side of the touch panel, It is easy to recognize the bad touch panel, and the cause of the defect can be taken immediately.

The laser marking apparatus 1 includes a frame 10, a seating portion 20, a marking portion 30, and a control portion 40.

The frame 10 is a means for supporting the components.

The frame 10 includes a first table 110 and a second table 120.

The first table (110) is a means for supporting each of the plurality of seating portions (20) in a stable manner.

The second table 120 is spaced apart from the first table 110 by a predetermined height. In this case, the second table 120 is provided with the marking unit 30, and the positioning unit 20 composed of at least one or more of the marking units 30 is moved alternately with the marking unit 30 to be disposed on one side of the touch panel 2 Laser marking is performed.

The seating part 20 is a means for supporting the touch panel 2 so that the control number can be marked on one side through the marking part 30. In this case, it is preferable that a plurality of the seating portions 20 are formed. This is because the process of placing the touch panel 2 on the other seating portion 20 is performed while the marking process is being performed in any one of the plurality of seating portions 20 so that a continuous marking process can be performed Thereby shortening the marking process time. Of course, the present invention is not limited to this, and it is possible to configure only one seat 20 in some cases. In this embodiment, a plurality of seating portions 20 are formed.

The seating part 20 includes a first guide convex 210, a first conveying table 220, an X axis conveying module 230, a Y axis conveying module 240, a rotation module 250, And a jig 260.

The first guide block 210 is fixed to the first table 110 of the frame 10 so that the marking process is performed in the marking unit 30 after the touch panel 2 is seated on the seating unit 20. [ And a conveyance force for withdrawing the conveyance force so that the conveyance force can be obtained.

The first guide block 210 may include a guide plate and a motor to provide a transfer force to one side of the guide plate. The first guide block 210 may be formed at the upper end of the first guide convex 210 by a transfer force provided by the motor. Allow components to be transported. In this case, the first guide block 210 is configured as a conveying unit such as an LM guide system.

The first transfer table 220 is seated on the upper end of the first guide block 210 and the touch panel 2 is attached to the marking portion 30 ). In this case, the first transfer table 220 may have any structure or shape that allows smooth transfer in association with the first guide block 210.

The X-axis transfer module 230 is fixed on the first transfer table 220 to provide a transfer force to be corrected in the X-axis direction with respect to the marking space of the touch panel 2 that is seated on the seating jig 260 It is means.

The Y-axis transfer module 240 is fixed on the first transfer table 220 or the X-axis transfer module 230 to transfer Y And is a means for providing a feed force to be corrected in the axial direction.

The rotation module 250 is mounted on the first transfer table 220 or the Y axis transfer module 240 and rotates in the direction of rotation with respect to the marking space of the touch panel 2 that is seated on the seating jig 260 Is a means for providing a transfer force to be corrected.

In this case, the X-axis transport module 230, the Y-axis transport module 240, and the rotation module 250 are composed of a table and a motor disposed on one side of the table, , Y-axis, or rotation direction. It is also configured to enable precise control.

In other words, the portion where the control number is marked on the touch panel 2 should be marked on the upper side as a control number with a size of 0.6 mm in a space of 9 mm in length and 0.9 mm in width. In this case, since there is only 0.1 mm of upper and lower clearances based on the control number, precise control is performed in the X-axis, the Y-axis, and the rotation direction, The module 230, the Y-axis transfer module 240, and the rotation module 250 are configured as means capable of precise control.

The seating jig 260 is formed on the rotation module 250 to maintain the stable state of the touch panel 2 and to support the marking of the control number smoothly through the marking unit 30 to be.

The seating jig 260 includes a fixed table 262, a seating guide 264, and a vacuum 266.

The stationary table 262 is fixed on the rotation module 250 so that the touch panel 2 can be stably fixed.

The fixing table 262 is provided with a holding space 262 for holding a space of the touch panel 2 so that an operator can easily remove the touch panel 2 inserted into the seating guide 264, 263 are formed.

The seating guide 264 is fixed on the fixing table 262 to support the touch panel 2 so that the touch panel 2 can be stably fixed and detached.

The seating guide 264 includes a bottom surface 2642 and side walls 2644 that are raised at both ends of the bottom surface 2642 and a top wall 2646 horizontally inward from the top of the side wall 2644. [ ).

In this case, a side wall 2644 and a top wall 2646 are formed at the rim with respect to the bottom surface 2642, and an opening 2648 is formed at one end of the bottom surface 1642 in an opened state, So that the touch panel 2 is inserted and extracted through the opening 2648.

In addition, both ends of the touch panel 2 are guided through the space between the bottom surface 2642 and the top surface 2646 to smoothly enter and exit.

Meanwhile, the upper surface 2646 is formed with a predetermined width, so that the upper part of the inserted touch panel 2 is exposed, and the marking process is performed through the laser. That is, the width of the top surface 2646 can be any length as long as the marking portion of the inside of the touch panel 2 is exposed to the outside and the marking process is performed through the laser but is not interfered with.

A plurality of vacuum holes 2643 are formed on the bottom surface 2642 so that the vacuum pressure acts on the bottom surface 2642 so that the touch panel 2 can be fixed by the vacuum pressure applied through the vacuum 266.

The vacuum chamber 266 is a means for providing a vacuum pressure to the vacuum hole 2463 of the bottom surface 2642 so as to apply vacuum pressure so that the touch panel 2 remains fixed during the molding process. In this case, the vacuum 266 can be used as long as it can smoothly apply vacuum pressure to the vacuum hole 2643 of the bottom surface 2642.

The marking unit 30 is mounted on the touch panel 2 which is formed on the second table 120 and is mounted on the seating unit 20 while being reciprocated in the X axis direction by the feed force of the second table 120 It is a means for marking the control number to be counted.

The marking unit 30 includes a laser irradiation unit 310 and a photographing unit 320.

The laser irradiating means 310 is means for irradiating the touch panel 2 with a laser so that the control number is projected.

The laser irradiating means 310 marks the control number while irradiating the laser according to the control signal provided through the control unit 40, and the control number is given a number through the control unit for easy identification.

A fixing bracket 330 fixed to the second table 120 is formed at one end of the laser irradiating means 310 so that the fixing bracket 330 can be reciprocated So that the laser irradiation means 310 can be reciprocated.

In addition, the laser irradiation means 310 has a general constitution in which laser irradiation is performed and irradiation is performed, and a detailed description thereof is omitted here.

The photographing means 320 is disposed on one side of the laser irradiating means 310 so that when the laser irradiating means 310 is positioned above the touch panel 2, It is a means to capture and mark the control number on the accurate marking part.

The photographing means 320 transmits the photographed image to the control unit 40 so that the marking portion is positioned within the error range through the image photographed by the control unit 40. [

The control unit 40 is a means for controlling each component.

The control unit 40 determines whether the image obtained through the photographing means 320 of the marking unit 30 is within the error range with respect to the marking portion of the touch panel 2. [ For example, when the touch panel 2 is out of the marking portion, the X-axis and Y-axis transfer modules 230 and 240 and the rotation module (not shown) 250 to correct the position of the marking portion of the touch panel 2 within an error range.

The control unit 40 transmits a control signal to the second table 120 so that the marking unit 30 is positioned at the marking portion of the touch panel 2.

The control unit 40 transmits a control signal to the laser irradiation unit 310 of the marking unit 30 so that the laser irradiation unit 310 irradiates the laser to mark the control number.

The operation state of the laser marking apparatus for quality control of the touch panel constructed as described above will be described below.

The touch panel 2 is inserted into the seating jig 260 formed on one of the plurality of seating portions 20 on the first table 110 of the frame 10 and then fixed .

That is, when the touch panel 2 is inserted through the opening 2648 formed at one end of the bottom surface 2642 of the seating jig 260, both side walls 2644 of the bottom surface 2642 formed on the opening 2648 side As shown in Fig.

When vacuum pressure acts on the vacuum 266 by the control signal of the control unit 40, a vacuum pressure acts on the vacuum hole 2643 formed on the bottom surface 2642, so that the touch panel 2 And remains stably fixed on the bottom surface 2642.

When the seating of the touch panel 2 on the seating part 20 is completed, a forward force acts on the first conveyance table 220 of the seating part 20, (260) is positioned below the marking portion (30). In this case, the X-axis and Y-axis transfer modules 230 and 240, which are arranged below the seating jig 260, and the rotation module 250 are also transported.

Subsequently, when the transfer of the seating jig 260 is completed, the marking portion of the touch panel 2 is photographed through the photographing means 320 of the marking portion 30, and the thus obtained image is transmitted to the control portion 40 do.

The control unit 40 determines whether the marking portion of the touch panel 2 is within the error range by discriminating the transferred removable mark.

The control unit 40 generates a control signal to the laser irradiating means 310 so that the laser irradiating means 310 irradiates a laser to mark the touch panel 2 The control number is marked on the part.

When the marking portion of the touch panel 2 is out of the error range, the correction value for the X axis, the Y axis, or the rotation direction is calculated. When the correction value is calculated in this way, A control signal is transmitted to the X-axis, Y-axis transfer module 230 (240) or the rotation module 250 that is configured to correct the marking portion of the touch panel 2 to be positioned within the error range.

Then, when the correction to the touch panel 2 is completed, the laser irradiation means 310 irradiates a laser and the control number is marked in the marking portion of the touch panel 2.

Meanwhile, while the mating process for the touch panel 2 inserted in any one of the plurality of seating portions 20 is performed, the touch panel 2 is fixed to the other seating portion 20 and fixed, .

When the marking process for the touch panel 2 placed on any one of the seating portions 20 is completed, the touch panel 2 on which the backing force acts on the first conveying table 220 and the control number is marked And the seated seating jig 260 is transferred to the extraction area.

Since the gripping space 263 is formed at one end of the seating jig 260 transferred to the extraction area, the operator can easily grasp a part of the touch panel 2 through the gripping space 263, And is easily extracted from the seating jig 260.

On the other hand, a forward force acts on the first transfer table 220 constituted on the other one of the seating portions 20 and is transferred to the marking region.

At this time, the marking unit 30 is transferred to the other side by the transfer force acting on the second table 120, and waits for performing the marking process for the newly entered touch panel 2.

Since the process of marking the control number on the touch panel 2 by the marking unit 30 is the same as described above, the detailed description is omitted here.

The above description is only an example for implementing the laser marking apparatus for quality control of the touch panel, and the present invention is not limited to the above-described embodiment. It will be understood by those skilled in the art that various changes may be made without departing from the spirit of the invention.

1: Marking device 10: Frame
110: first table 120: second table
20: seat part 210: first guide block
220: first transfer table 230: X-axis transfer module
240: Y-axis feed module 250: rotation module
260: seat jig 262: stationary table
263: gripping space 264: seat guide
2642: bottom surface 2643: vacuum hole
2644: side wall 2646: upper wall
2648: opening 266:
30: marking unit 310: laser irradiation means
320: photographing means 330: fixed bracket
40:

Claims (5)

1. A marking device for marking a control number on one side of a touch panel to facilitate management of a touch panel formed on a front surface of an electronic device product,
A frame (10) including a first table (110) and a second table (120) spaced at a predetermined distance from one side of the first table (110);
The touch panel 2 may be mounted on the first table 110 of the frame 10 to provide a feed force to move the touch panel 2 into and out of the extraction area and the marking area, At least one seat (20) for correcting the seat (20);
A marking unit 30 mounted on the second table 120 of the frame 10 and marking a control number on the marking portion of the touch panel 2 which is entered by the seating unit 20; And
A control unit (40) for controlling the operation states of the table (10), the seating unit (20) and the marking unit (30);
And a laser marking unit for performing quality control of the touch panel.
The seat according to claim 1, wherein the seat (20)
A first guide block 210 formed on the first table 110 and providing a reciprocating transfer force in the Y axis direction;
A first transfer table 220 mounted on the first guide block 210 and reciprocated;
An X-axis feed module 230 configured to be precisely corrected in the X-axis direction on the first feed table 220;
A Y-axis transfer module 240 configured on the first transfer table 220 to perform accurate correction in the Y-axis direction;
A rotation module 250 configured on the first transfer table 220 to make a precise correction with respect to the rotational direction; And
A seating jig 260 formed at the uppermost portion of the first transfer table 220 to support the touch panel 2 to be stably fixed;
And a laser marking unit for performing quality control of the touch panel.
The seat according to claim 2, wherein the seating jig (260)
A fixed table 262;
A seating guide 264 formed at one side of the fixing table 262 and supporting the touch panel 2 to keep the door panel 2 in the open and closed state and fixed state; And
A vacuum 266 for providing vacuum pressure to the seating guide 264 to maintain the fixed state of the touch panel 2;
And a laser marking unit for performing quality control of the touch panel.
The apparatus of claim 3, wherein the seating guide (264)
A bottom surface 2642 formed with a plurality of vacuum holes 2643 so that the vacuum pressure provided through the vacuum chamber 266 can smoothly operate;
A side wall 2644 configured to be raised at a predetermined height on the rim of the bottom surface 2642;
A top wall 2646 formed to have a predetermined width at an upper end of the side wall 2644 and supported by the bottom surface 2642 to stably support the touch panel 2;
An opening 2648 formed at one end of the bottom surface 262 to allow the touch panel 2 to be guided in and out of the side wall 2644;
And a laser marking unit for performing quality control of the touch panel.
The marking apparatus according to claim 1, wherein the marking unit (30)
A laser irradiation means (310) for irradiating a laser to mark a control number on the marking portion of the touch panel (2);
The image obtained by photographing the marking portion of the touch panel 2 seated on the seating portion 20 is transmitted to the control portion 40 so that the marking portion of the touch panel 2 can be corrected within the error range Photographing means 320; And
A fixing bracket 330 formed at one side of the laser irradiation means 310 and supporting the frame 10 to reciprocate along the second table 120;
And a laser marking unit for performing quality control of the touch panel.

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