KR20070018488A - Window cleaning apparatus for lcd - Google Patents

Abstract

The present invention relates to a window cleaning device for attaching a liquid crystal display that removes static electricity from a window attached to a liquid crystal display glass and removes foreign matter particles stuck to an outer surface thereof. According to the cleaning device of the present invention, there is provided: a loading conveyor for introducing and transporting a window for attaching a liquid crystal display; A primary static elimination unit for primaryly removing static electricity of the window transported along the loading conveyor; A debris particle removal unit for removing debris particles from the window conveyed along the loading conveyor; It is provided with a secondary antistatic unit for secondary eliminating the static electricity of the window conveyed along the loading conveyor.

According to the present invention, by removing the static electricity charged in the window, as well as removing foreign matter particles attached to the outer surface of the window has the effect of preventing the window from being contaminated by the static electricity.

Description

Window cleaning device for LCD display attachment {WINDOW CLEANING APPARATUS FOR LCD}

1 is a front view showing a window cleaning device for attaching a liquid crystal display according to the present invention;

2 is a plan view showing a window cleaning apparatus for attaching a liquid crystal display according to the present invention;

3 is a front sectional view showing an enlarged primary static elimination unit constituting the window cleaning apparatus of the present invention;

4 is a cross-sectional view taken along the line IV-IV of FIG. 3;

5 is an enlarged sectional view showing an enlarged foreign matter particle removing unit constituting the window cleaning apparatus of the present invention;

6 is a cross-sectional view taken along line VI-VI of FIG. 5;

7 is an enlarged sectional view showing an enlarged secondary static elimination unit constituting the window cleaning apparatus of the present invention;

8 is a cross-sectional view taken along line VII-VII of FIG. 7;

9 is an enlarged plan view showing a direction change unit constituting the window cleaning apparatus of the present invention;

10 is a cross-sectional view taken along line VII-VII of FIG. 9.

♣ Explanation of symbols for the main parts of the drawing ♣

10: Frame 12: Controller

20: Window Jig 30: Loading Conveyor

40: primary static elimination unit 42: antistatic brush

50: foreign matter particle removal unit 52: cleaning roller

54: adhesive roller 56: lifting bracket

58: lifting cylinder 60: secondary static elimination unit

62: Ion Air Injection Ionizer

64: ion generator 66: injection nozzle

68: cover 68a: outlet

69: guide plate 70: outer cover

80: work table 90: conveying conveyor

100: direction change unit 102: introduction roller

104: drive motor 106: belt transmission mechanism

110: stopper 112: direction change roller

114: drive motor 116: belt transmission mechanism

120: platform 122: cylinder

124: feed roller

130: Unloading Conveyor

140: Booth 142: Crean Room

144: Blower type ionizer 146: Filter

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window cleaning device for attaching a liquid crystal display. More particularly, the window cleaning device for attaching a liquid crystal display removes static electricity of a window attached to a liquid crystal display glass and removes foreign matter particles adhering to an outer surface thereof. Relates to a device.

The liquid crystal display glass is made of glass and is easily damaged or broken. In particular, the surface is damaged by foreign matter such as dust and the like, and scratches are likely to occur. Therefore, an acrylic transparent window is attached to the surface of the liquid crystal display glass to suppress surface scratches, and also to prevent damage and breakage of the glass.

On the other hand, these windows are generally attached to the liquid crystal display glass through the double-sided tape. That is, the double-sided tape is first attached to the back of the window, and then attached to the liquid crystal display glass again.

However, since the window is made of acrylic material, it is easy to generate static electricity, various foreign matters are attached to the surface due to the generated static electricity, and many foreign matter particles are introduced between the liquid crystal display glass and the window due to the foreign matter attached to the surface. There is a problem. In particular, when peeling off the release paper of the double-sided tape attached to the window, a lot of static electricity is generated, there is a problem that more foreign matter particles cling to the window to contaminate the window. This problem also results in mass production of many defective products.

The present invention has been made to solve the above-mentioned conventional problems, the purpose of which is to remove the static electricity charged in the window and to remove the foreign matter particles attached to the outer surface of the window, by which the window is contaminated by static electricity An object of the present invention is to provide a window cleaning device for attaching a liquid crystal display.

In order to achieve the above object, the present invention includes a loading conveyor for introducing and transporting the window for attaching the liquid crystal display; A primary static eliminating unit for primaryly removing static electricity of the window transferred along the loading conveyor; A foreign matter particle removing unit for removing foreign matter particles from the window conveyed along the loading conveyor; And a secondary static elimination unit for secondarily removing static electricity of the window transferred along the loading conveyor.

Preferably, the primary static elimination unit is in contact with the window, characterized in that the antistatic brush to remove the static electricity charged in the window.

And the foreign matter particle removal unit, the cleaning roller (Cleaning Roller) for removing the foreign matter particles attached to the upper surface of the window while in contact with the upper surface of the window; And an adhesive roller for removing and cleaning foreign matter particles adhered to the outer circumference of the cleaning roller while in rolling contact with the cleaning roller.

In addition, the secondary static elimination unit is an ion air injection ionizer (Ionizer) that blows out the static electricity of the window by spraying the compressed air ionized on the upper surface of the window, and blows foreign matter particles stuck to the window. It features.

Hereinafter, a preferred embodiment of a window cleaning apparatus for attaching a liquid crystal display according to the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 1 and 2, the cleaning apparatus of the present invention includes a frame (Frame 10), and a controller (Controller) 12 is installed at one side of the frame 10. The controller 12 is for controlling the device, and is equipped with a control board (not shown) and a plurality of operation buttons 12a.

The cleaning apparatus of the present invention includes a window jig 20. The window jig 20 is for mounting the window W, and has a plurality of mounting grooves 22. A plurality of mounting grooves 22 are formed side by side along the width direction of the jig 20, and each is configured to mount the window (W). Here, the mounting groove 22 may be formed of three or more in some cases, of course. The window W mounted on the mounting groove 22 is mounted so that the side on which the double-sided tape is attached faces upward.

Such window jig 20 is put into the loading conveyor 30 mentioned later in the state which mounted the some window W. As shown in FIG. The window jig 20 loads the windows W equally each time to a specific position of the loading conveyor 30, thereby precisely aligning the position of the window W to each unit during the cleaning process. .

Referring again to FIGS. 1 and 2, the cleaning apparatus of the present invention has a loading conveyor 30 for introducing a window jig 20 mounted with a window.

Loading conveyor 30 is composed of a belt conveyor (Belt Conveyor), and transfers the window jig 20 introduced to one side to the work table 80 of the other side. Here, the belt conveyor includes a head pulley (32) and a tail pulley (34) installed on both sides of the frame 10, and a belt for winding the head pulley 32 and the tail pulley (34) ( 36 and a drive motor 38 for driving the head pulley 32.

The loading conveyor 30 transfers the window jig 20 introduced to one side to the work table 80, thereby transferring the window jig 20 to the worker disposed on the work table 80, thus allowing the worker to make the window jig 20. The window W mounted on the 20 can be recovered and attached to the liquid crystal display glass.

In addition, the cleaning apparatus of the present invention includes a primary static elimination unit 40, a foreign matter particle removing unit 50, and a secondary static elimination unit 60, which are sequentially installed above the loading conveyor 30.

As illustrated in FIGS. 3 and 4, the primary static elimination unit 40 includes a static elimination brush 42 made of a metal material that is installed across the loading conveyor 30. The antistatic brush 42 first removes the static electricity charged in the window W while contacting each window W of the window jig 20 transferred along the loading conveyor 30.

Here, the antistatic brush 42 is made of the antistatic fiber and the corona (Corona) generator in the form of a brush, when the proximity to the main window (W) is formed a strong inequality between the window (W), thereby Ions are generated in the air around the window W to neutralize the electric charge of the window W to discharge the static electricity.

The primary static elimination unit 40 primarily removes static electricity from the window W transported along the loading conveyor 30, thereby preventing dust and foreign particles from adhering to the outer surface of the window W.

Meanwhile, referring to FIG. 5 and FIG. 6, the foreign material particle removing unit 50 is as follows.

The foreign matter particle removing unit 50, by removing the foreign matter particles from the window (W) transported along the loading conveyor 30, cleaning roller (Cleaning Roller) 52 in contact with the upper surface of the window (W), And an adhesive roller 54 in rolling contact with the cleaning roller 52.

The cleaning roller 52 removes foreign matter particles adhered to the upper surface of the window W while rolling contact with the upper surface of the window W. And the adhesive roller 54 serves to remove and clean the foreign matter particles stuck around the outer surface of the cleaning roller 52 while in contact with the cleaning roller 52.

According to the foreign matter particle removing unit 50, foreign matter particles are removed from the release paper of the upper surface of the window W, in particular, the double-sided tape attached to the window W, and the window W is cleaned by removing the foreign matter particles. Clean the role. In particular, by cleaning the window (W) primarily subjected to the antistatic treatment serves to further reduce the contamination of the window (W). Here, the pair of cleaning roller 52 and the adhesive roller 54 is installed along the loading conveyor 30.

On the other hand, the cleaning apparatus of the present invention further comprises a height adjusting means for adjusting the height, height of the foreign matter particle removal unit 50.

The height adjusting means is an elevating bracket 56 which is installed to be able to elevate up and down in a state in which the cleaning roller 52 and the adhesive roller 54 are rotatably supported, and elevating the elevating bracket 56 up and down. It consists of the cylinder 58. In particular, the lifting cylinder 58 is a pneumatic cylinder, and adjusts the height of the cleaning roller 52 relative to the window (W) while expanding and contracting by the compressed air entering and exiting.

This height adjustment means, it is possible to properly adjust the distance and the contact pressure of the cleaning roller 52 with respect to the upper surface of the window (W) by adjusting the upper, lower height of the foreign matter particle removal unit 50 as necessary. In addition, when the thickness of the window W is changed, it is possible to adjust the height of the cleaning roller 52 correspondingly.

Next, the secondary static elimination unit 60 will be described with reference to FIGS. 7 and 8 as follows.

The secondary static elimination unit 60 is composed of ion air injection type ionizers 62 installed corresponding to the respective windows W. FIG.

The ion air injection type ionizer 62 discharges the generated ion electrons to the window W together with the compressed air to neutralize the electric charges charged in the window W, thereby generating ions. 64) and an injection nozzle 66 for injecting ions generated by the ion generator 64 together with the compressed air.

The ion air injection ionizer 62 secondaryly removes the static electricity charged in the window W by spraying ionized compressed air onto the upper surface of the window W transported along the loading conveyor 30. In addition, the foreign matter particles adhering to the upper surface of the window (W) is blown off. Therefore, the contamination degree of the window W is minimized.

On the other hand, the secondary static elimination unit 60 further includes a cover 68 for blocking compressed air injected into the window W from being scattered in all directions.

The cover 68 is installed above the loading conveyor 30 and is configured to cover the injection nozzle 66 and the window jig 20. The cover 68 has an outlet 68a for discharging the compressed air injected into the window W, and the outlet 68a is open upward. Therefore, the compressed air injected into the window (W) and foreign matter particles contained therein are discharged to the open upper portion. In addition, a guide plate 69 for guiding the compressed air injected into the window W to the discharge port 68a is further installed on the inner wall of the cover 68.

Referring back to FIGS. 1 and 2, the cleaning apparatus of the present invention includes an outer cover 70 covering the primary static elimination unit 40, the foreign matter particle removing unit 50, and the secondary static elimination unit 60. ).

The outer cover 70 is composed of a transparent material so as to visually check each unit 40, 50, and 60 therein, and blocks foreign substances from entering the inside. In particular, by blocking the foreign particles to prevent the contamination of the window (W) transported along each unit (40, 50, 60) and the loading conveyor (30).

The outer cover 70 is provided with a door 72 that can open the inside, through the door 72 to repair the respective units 40, 50, 60 and replace parts.

And the cleaning apparatus of this invention is equipped with the work bench 80 arrange | positioned at the end of the loading conveyor 30. As shown in FIG. The work table 80 is a plate that receives and supports the window jig 20 transferred from the loading conveyor 30, and allows a worker to recover the window W mounted on the window jig 20 and attach it to the liquid crystal display glass. To be.

And the cleaning apparatus of this invention is provided with the conveyance conveyor 90 for conveying the window jig 20 moved from the worktable 80, as shown in FIG.

The transfer conveyor 90 is a belt conveyor installed at an angle of about 90 ° with respect to the loading conveyor 30, and transfers the window jig 20 moved by the operator in the other direction. In particular, it is conveyed in a direction diverted approximately 90 degrees with respect to the loading conveyor 30.

In addition, the cleaning apparatus of the present invention includes a redirection unit 100 for redirecting the window jig 20 transferred from the transfer conveyor 90 at an approximately 90 ° angle.

The turning unit 100 is provided with a plurality of introduction rollers 102 for introducing the window jig 20 from the transfer conveyor 90, as shown in Figure 9 and 10.

Introduction roller 102 is installed in conjunction with the transfer conveyor 90, the opposite rollers 102 are installed in pairs. Introduction roller 102 is preferably installed four pairs along the longitudinal direction. Here, the introduction rollers 102 are driven by the first driving means. The first drive means is composed of a drive motor 104, a plurality of belt transmission mechanism 106 for transmitting the power of the drive motor 104.

And the direction change unit 100 is provided with a stopper (110) for blocking the window jig 20 introduced from the introduction roller (102). The stopper 110 is a plate installed in the frame 10 and blocks the window jig 20 to prevent movement of the window jig 20.

And the reversing unit 100, the reversing rollers 112 are provided between the introduction roller 102 pairs.

The turning rollers 112 are provided in pairs with the rollers 112 facing each other, and have a rotational axis ℓ twisted at an angle of 90 ° with respect to the introduction roller 102. Here, the turning rollers 112 are driven by the second driving means. The second drive means is composed of a drive motor 114, a plurality of belt transmission mechanism 116 for transmitting the power of the drive motor 114.

These turning rollers 112 are projected more than the upper surface of the introduction roller 102 while moving upward by the lifting means to be described later, wherein the rotation axis (L) twisted at an angle of 90 ° with respect to the introduction roller 102 Therefore, the window jig 20 whose movement is prevented by the stopper 110 is conveyed while being turned at an angle of 90 ° with respect to the introduction roller 102.

And the turning unit 100 is provided with a lifting means for raising and lowering the turning roller 112 up and down so that the turning rollers 112 protrude more than the upper surface of the introduction roller (102).

Lifting means is composed of a lifting table 120 which is installed to the upper and lower lifting and lifting in the frame 10 in the state supporting the direction change rollers 112, and the lifting cylinder 122 for lifting the lifting table 120.

The elevating means, elevating the elevating platform 120 up and down with the elevating cylinder 122, the turning rollers 112 provided on the elevating platform 120 is installed to protrude more than the upper surface of the introduction roller (102). Accordingly, the turning rollers 112 having the rotational axis twisted at an angle of 90 ° with respect to the introduction roller 102 can be conveyed while turning the window jig 20 at an angle of 90 °.

On the other hand, the direction switching unit 100 further includes a feed roller 124 for conveying the window jig 20 is turned by 90 ° angle.

The transfer rollers 124 are paired with rollers 124 facing each other, and are installed on the lift table 120. The conveying rollers 124 are moved up and down simultaneously with the direction changing rollers 112 installed on the lifting table 120 and the lifting table 120. Here, the conveying rollers 124 are connected with the second driving means for moving the turning rollers 112. Therefore, it is driven by the second driving means. The second driving means is connected by the belt transmission mechanism 126.

Referring again to FIG. 2, the cleaning apparatus of the present invention includes an unloading conveyor 130 for discharging the window jig 20 turned at a 90 ° angle.

The unloading conveyor 130 is installed in succession to the feed roller 124 of the redirection unit 100, it is composed of a belt conveyor. The unloading conveyor 130 serves to discharge the empty window jig 20 to the outside of the device.

Here, the unloading conveyor 130 is preferably arranged side by side with the loading conveyor 30. This is in order to convey the empty window jig 20 to the introduction side portion of the loading conveyor 30 by being arranged in parallel with the loading conveyor 30.

Referring again to FIGS. 1 and 2, the cleaning apparatus of the present invention presupposes the loading conveyor 30, the transfer conveyor 90, the unloading conveyor 130, and the units 40, 50, 60. It has a booth (Booth) 140.

The booth 140 has an internal clean room (142) and is configured to accommodate each conveyor (30, 90, 130) and each unit (40, 50, 60) in the clean room (142). Therefore, during the cleaning operation of the window (W), the inflow of foreign substances from the outside is blocked at the source.

Meanwhile, a blower type ionizer 144 for blowing ion air into the clean room 142 is installed on the top surface of the booth 140. The blower ionizer 144 removes static electricity generated in various units accommodated in the clean room 142 by blowing ion air to the clean room 142.

Here, the blower type ionizer 144 includes a filter 146 for filtering ion air blown into the clean room 142. As a HEPA filter having a pleat, it filters out the fine dust in the ionic air blown into the clean room 142, thereby allowing the air supplied to the clean room 142 to maintain high cleanliness. HEPA filter is a high-performance filter that is made of paper of ultra fine fiber and can remove fine particles of 0.3 micron or less.

Next, the operation of the present invention having such a configuration will be described with reference to FIGS. 1 and 2.

First, the operation button 12a of the controller 12 is used to operate the apparatus of the present invention. Thereafter, the window W is mounted on the window jig 20, and the window jig 20 on which the window W is mounted is loaded on the loading conveyor 30. Then, the loading conveyor 30 starts to slowly transfer the window jig 20 in the other direction.

On the other hand, the window jig 20 conveyed along the loading conveyor 30 immediately passes through the primary static elimination unit 40, in which case the window W of the window jig 20 passing through the primary static elimination unit 40. The static electricity is first removed while contacting the antistatic brush 42.

The window jig 20 passing through the primary static elimination unit 40 passes again through the foreign matter particle removing unit 50 and the secondary static eliminating unit 60 in order. At this time, the window W of the window jig 20 is in contact with the cleaning roller 52 of the foreign matter particle removing unit 50 to remove the foreign matter particles on the surface. Then, the secondary static elimination is performed by ion air injected from the injection nozzle 66 of the secondary static elimination unit 60.

As such, by passing through the primary static elimination unit 40, the foreign matter particle removing unit 50, and the secondary static elimination unit 60, the window W of the window jig 20 is completely removed from the static electricity and the surface thereof. It is cleaned neatly by removing foreign matter particles that adhere to it.

On the other hand, the window W of the cleaned window jig 20 is transferred to the work table 80 while moving to the end of the loading conveyor 30, at which time the worker is transferred to the work table 80 window jig 20 The window W is recovered from and attached to the liquid crystal display glass. Here, the worker collects only one window W from the window jig 20, attaches it to the liquid crystal display glass, and places the other on the transfer conveyor 90 while being mounted on the window jig 20 as it is.

It is conveyed along the window jig 20 mounted on the conveyer conveyor 90. At this time, the transfer conveyor 90 is installed at an angle of approximately 90 ° with respect to the loading conveyor 30, and thus transfers the window jig 20 in a direction converted at an angle of approximately 90 ° with respect to the loading conveyor 30.

The window jig 20 to be transported along the transport conveyor 90 is introduced into the introduction roller 102 of the direction switching unit 100 while moving to the end of the transport conveyor 90, and the window jig 20 introduced is It is stopped while being blocked by the stopper 110. At this time, the worker recovers the other window W from the window jig 20 where the movement is stopped and attaches it to the liquid crystal display glass.

On the other hand, when the attachment of the window (W) is completed, the turning rollers 112 of the turning unit 100 is raised upward, the raised turning rollers 112 protrude more than the upper surface of the introduction roller 102. The protruding turning rollers 112 transfer the window jig 20 with a 90 ° angle with respect to the introduction roller 102.

And the redirected window jig 20 is introduced into the unloading conveyor 130 from the transfer roller 124 of the redirection unit 100, the introduced window jig 20 is the end of the unloading conveyor 130 It is discharged as it is transported. At this time, since the unloading conveyor 130 is arranged in parallel with the loading conveyor 30, the unloading conveyor 130 conveys the empty window jig 20 to the introduction side portion of the loading conveyor 30.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

As described above, according to the window cleaning apparatus for attaching the liquid crystal display according to the present invention, the static electricity charged on the window is removed, and the foreign matter particles attached to the outer surface of the window are also removed to prevent contamination of the window due to static electricity. Has the effect.

Claims (11)

A loading conveyor for introducing and transporting a window for attaching a liquid crystal display; A primary static eliminating unit for primaryly removing static electricity of the window transferred along the loading conveyor; A foreign matter particle removing unit for removing foreign matter particles from the window conveyed along the loading conveyor; And a secondary static elimination unit to secondarily remove static electricity of the window transferred along the loading conveyor. The method of claim 1, The primary static elimination unit, An antistatic brush for removing static electricity charged in the window in contact with the window. The method of claim 1, The foreign material particle removal unit, A cleaning roller for removing foreign matter particles adhered to the upper surface of the window while in rolling contact with the upper surface of the window; And an adhesive roller for removing and cleaning foreign matter particles adhered to the outer circumference of the cleaning roller while in rolling contact with the cleaning roller. The method of claim 1, The secondary static elimination unit, Window cleaning device for attaching a liquid crystal display, characterized in that the ion-air injection ionizer (Ionizer) that blows out the static electricity of the window by spraying ionized compressed air on the upper surface of the window and blows foreign matter particles stuck to the window. . The method of claim 4, wherein Further comprising a cover for covering the upper side of the secondary static elimination unit and the loading conveyor to block the compressed air injected into the window to be scattered in all directions, The cover may further include a discharge port for discharging the compressed air injected into the window, and a guide plate for guiding the compressed air injected into the window to the discharge port. . The method according to any one of claims 1 to 5, And an outer cover which covers the primary static elimination unit, the foreign matter particle removing unit and the secondary static elimination unit to block foreign foreign matter from entering. The method of claim 1, And a window jig capable of mounting the window, wherein the window jig loads the window equally each time to a specific position of the loading conveyor. The method of claim 7, wherein Further comprising a transfer conveyor for transferring the window jig transferred from the loading conveyor in the other direction, The transfer conveyor is installed to form a 90 ° angle to the loading conveyor is a window cleaning apparatus for attaching a liquid crystal display, characterized in that for transferring the window jig in a direction converted to a 90 ° angle to the loading conveyor. The method of claim 8, It is provided with a direction switching unit for turning the window jig at an angle of 90 °, The direction switching unit, A plurality of introduction rollers for introducing the window jig; A stopper preventing the movement by blocking the window jig introduced into the introduction roller; A plurality of turning rollers installed between the introduction rollers and having a twisted axis of rotation about 90 ° with respect to the introduction rollers, the plurality of direction changing rollers being able to protrude more than the upper surface of the introduction rollers; And elevating means for elevating the diversion rollers upward so that the diversion rollers transfer the window jig at an angle of 90 [deg.] With respect to the introduction direction. The method of claim 9, The window cleaning device for attaching a liquid crystal display, further comprising an unloading conveyor for discharging the window jig. The method according to any one of claims 1, 8, 9, 10, And a booth having a clean room capable of accommodating the loading conveyor, the transfer conveyor, the unloading conveyor and the respective units. The booth further includes a blower type ionizer for blowing ion air to the clean room and a filter for filtering ion air blown from the blower type ionizer. Device.

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