KR101301318B1

KR101301318B1 - Edge deletion device and insulation glass panel manufacturing method using the same

Info

Publication number: KR101301318B1
Application number: KR1020100003382A
Authority: KR
Inventors: 권순호
Original assignee: (주)엘지하우시스
Priority date: 2010-01-14
Filing date: 2010-01-14
Publication date: 2013-08-29
Also published as: KR20110083247A

Abstract

It relates to a method of manufacturing an insulating multi-layered glass panel that forms a space between two sheets of glass and seals the space between the low melting glass or the synthetic sealant along both edges of the glass. More specifically, the surface in contact with the low melting glass or the synthetic resin sealant is formed. Disclosed is an edge processing apparatus for processing by using a UV laser and a method for producing an insulating multilayer glass panel using the same.
The present invention is a laser generator for generating a UV laser of wavelength less than 360nm; And a blower for injecting a high pressure gas into the laser irradiation area generated by the laser generator. Including, by irradiating the surface of the plate glass with a UV laser to provide a rim processing apparatus of a heat insulating multilayer glass panel to remove the coating film on the surface of the plate glass and impart irregularities.

Description

Edge deletion device and insulation glass panel manufacturing method using the same

The present invention relates to a method for manufacturing an insulating multi-layered glass panel that forms a space between two sheets of glass and seals the space between the low melting glass or the synthetic resin sealant along both edges of the glass, and more specifically, to contact with the low melting glass or the synthetic resin sealant. The present invention relates to an edge processing apparatus for processing a surface to be processed using a UV laser, and a method for manufacturing an insulating multilayer glass panel using the same.

In an insulating multilayer glass panel that forms a space between two sheets of glass and seals the space between the two panes by using a low melting glass or a synthetic resin sealant along both edges of the glass, the surface to be bonded by the low melting glass or the synthetic resin sealant is When there is a coating film having a weak adhesion to the glass plate and weak physical and chemical durability, the airtightness between the plate glass may be broken due to corrosion or peeling of the coating film, thereby invading outside air.

In addition, in order to increase the energy efficiency of the heat insulating multilayer glass panel, there are many cases in which a low E coating layer is formed on the surface of the plate glass, in which case the removal of the low emissive coating layer is essential. In this case, in the case of general multilayer glass bonded to the surface to be bonded with a synthetic resin sealant, an edge deletion operation of removing the coating film using a diamond wheel is essentially performed to remove the low-emission coating film.

1 is a conceptual view showing a conventional edging process process, Figure 2 is a cross-sectional view showing the state of the surface of the glass plate before and after the conventional edge delineation, Figure 3 is a diamond wheel worn or defective processing due to foreign matter on the glass surface It shows the state.

FIG. 1 shows a process of polishing a rim portion of a plate glass 1 to which a synthetic resin sealant or a low melting point glass is attached using a diamond wheel 10. The upper part of Figure 2 shows the state of the plate glass before polishing the diamond wheel 10, the lower part of Figure 2 shows the state after polishing.

1 and 2, when the polishing operation is performed with the diamond wheel 10, it can be seen that the low E coating layer 2 on the surface is removed and roughness is given to the glass surface.

In addition, in the case of a vacuum multilayer glass in which the surface to be bonded is bonded by low melting point glass, the glass surface without the coating film as well as the removal of the coating film using a diamond wheel to effectively prevent peeling by shear along the width direction of the surface to be bonded. It is preferable to form minute curvature on the surface also about the to-be-attached surface.

However, in the method of removing the coating film using the diamond wheel and forming fine bends on the glass surface, as shown in FIG. 3, the coating film is properly removed in the case where the foreign matter is stuck to the place where the diamond wheel passes, or the wear state of the wheel is severe. There are many cases where unseen parts are created, which makes quality control difficult.

In the related art, another method for removing the coating layer has been to use an IR laser.

Figure 4 shows a conventional rim processing method using an IR laser, Figure 5 is a cross-sectional view showing a state before and after the edge processing using an IR laser.

As shown, when irradiated with an IR laser to the edge of the plate glass 10, the low-emission coating layer (2) is removed, but the surface of the plate glass (1) was not processed and remained smooth.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for removing a coating film on the edge of a plate glass to which a low melting point glass or a synthetic resin sealant is bonded in the method of manufacturing a heat insulating multilayer glass panel, and to form a fine bend uniformly on the surface of the plate glass.

Another object of the present invention is to provide a method that can remove the coating film of the plate glass border and form a fine bend on the surface of the plate glass without the need for a separate washing process.

Another object of the present invention is to provide a plate glass surface processing apparatus capable of performing the above method.

The present invention for achieving this object is a laser generator for generating a UV laser of 360nm or less wavelength; And a blower for injecting a high pressure gas into the laser irradiation area generated by the laser generator. Including, by irradiating the surface of the plate glass with a UV laser to provide a rim processing apparatus of a heat insulating multilayer glass panel to remove the coating film on the surface of the plate glass and impart irregularities.

Here, it is preferable to further include a vacuum inhaler for sucking the gas injected from the blower,

The laser generator may further include an optical system, a scanning head, and a controller to freely move the laser focus position within a predetermined range.

And the present invention forms a space between the two sheets of glass, and in the method of manufacturing a heat insulating multilayer glass panel for sealing the space using a low melting point glass or a synthetic resin sealant along both edges of the glass, the low melting point glass or synthetic resin sealant It provides a method of manufacturing a heat insulating multilayer glass panel, characterized in that to form a fine concavo-convex on the surface of the plate glass at the same time to remove the coating film on the surface of the plate glass by irradiating a UV laser to the adhered surface.

At this time, it is preferable to remove the particles peeled off by the UV laser by spraying the gas at a high pressure in the area irradiated with the UV laser, and more preferably to collect the particles dispersed by the high-pressure gas with a vacuum inhaler.

In addition, the UV laser preferably has a wavelength of 360 nm or less, and the high-pressure gas preferably uses compressed air.

The heat insulating multilayer glass frame processing apparatus according to the present invention has an effect of maintaining a constant quality by processing the edge of the plate glass in a non-contact manner.

In addition, according to the present invention, the insulating double-layered glass edging device is configured to recover the dispersed particles with a vacuum inhaler to provide a clean working environment, and the effect of not requiring a separate washing process.

1 is a conceptual diagram showing a conventional edging process step,
Figure 2 is a cross-sectional view showing the state of the glass surface before and after the edge edge in the prior art,
3 is a view showing a state of poor processing due to the wear of the diamond wheel or foreign matter on the surface of the plate glass,
4 is a view showing a frame processing method using a conventional IR laser,
5 is a cross-sectional view showing a state before and after the edge processing using an IR laser;
6 is a conceptual diagram showing the structure of a heat insulating multilayer glass panel frame processing apparatus according to the present invention,
7 is a cross-sectional view showing a state before and after the processing of the plate glass;
8 to 10 is a plan view showing a state of processing the surface of the plate glass in various forms,
11 and 12 are cross-sectional view showing a state of manufacturing a multi-layer insulating glass panel using a general aluminum liver bar using the rim processing apparatus according to the present invention,
13 and 14 is a cross-sectional view showing a state of manufacturing a multi-layered insulating glass panel using an integral insulating liver bar using the edge processing apparatus according to the present invention,
15 and 16 are cross-sectional views showing a state in which a vacuum multilayer glass panel is manufactured by using the edge processing apparatus according to the present invention.

Hereinafter, with reference to the accompanying drawings, a description will be given of a heat insulating multilayer glass panel frame processing apparatus and a method of manufacturing a heat insulating multilayer glass panel using the same.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to achieve them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the drawings, it is to be noted that the sizes of the constituent elements of the invention are exaggerated for clarity of description, and when it is described that any constituent element is present inside or connected to another constituent element, The element may be installed in contact with the other element, may be installed at a predetermined distance from the element, and may be provided with a third element for fixing or connecting the element to the other element, The description of the means may be omitted.

6 is a conceptual diagram showing the structure of a heat insulating multilayer glass panel frame processing apparatus according to the present invention.

As shown, the multilayer glass panel frame processing apparatus according to the present invention sprays a high-pressure gas to the laser generator 110 for generating a UV laser of wavelength less than 360nm, and the laser irradiation region generated by the laser generator 110 Blower 120 and a vacuum inhaler 130 for sucking the gas injected from the blower.

Here, the laser generator 110 includes an optical system that can adjust the focus, a scanning head that detects an area to which the laser is irradiated, and a controller that can control the laser generator 110 to freely move the laser focus position within a predetermined range. It is preferable.

In the laser generator, since the optical system for adjusting the focus, the scanning head, the controller, and the like can use generally known products, further description thereof will be omitted.

Conventionally, an IR laser was mainly used, but the IR laser was weak in energy and could not process the glass plate surface. The present invention uses a UV laser having a wavelength of less than 360nm, when irradiated with a UV laser of the wavelength band of the glass panel surface, the glass fragments come off while fine cracks are generated on the surface of the plate glass of the laser irradiation area. Therefore, fine bending is processed on the surface of the plate glass from which glass fragments fell.

The wavelength range of the UV laser is 1 nm to 390 nm. The shorter the wavelength, the finer and more precise processing is possible. In this invention, it is preferable to use the wavelength below 360 nm. This is because when the wavelength exceeds 360 nm, the size of the glass fragments generated is too large, which may cause relatively large cracks in the glass substrate.

The blower 120 injects a high-pressure gas to the area irradiated with the laser from the laser generator 110. At this time, the gas of high pressure may be compressed air or the like. The injected gas promotes the dropping of the glass fragments generated on the surface of the plate glass, and the dropped glass fragments are blown by the high pressure gas to move with the high pressure gas. As a result, glass fragments do not remain on the surface of the pane, and a clean state can be maintained.

The vacuum inhaler 130 is positioned on a path through which the gas injected from the blower 120 passes along the surface of the plate glass and moves with the glass fragments so as to suck the glass fragments mixed with the high pressure gas. That is, the vacuum inhaler 130 is disposed toward the blower 120 to suck glass debris together with the gas injected from the blower 120.

Figure 7 shows a cross section before and after processing of the plate glass.

The upper part of the figure shows a state in which the low-emission coating layer 2 is formed on the plate glass 1, and the lower part of the drawing shows that the low-emission coating layer 2 is removed by the edge processing apparatus according to the present invention. It shows the state formed. As shown, by removing a part of the surface of the glass plate and irregularly forming the surface, the low melting glass or the synthetic resin sealant can be more firmly attached to the glass surface.

8 to 10 are plan views showing a state in which the plate glass surface is processed in various forms.

Reference numeral 2 denoted by dot hatching indicates a low-emissivity coating layer, and a part without dot hatching indicates a portion where the low-emission coating layer is removed and at the same time a fine bend is processed on the surface of the plate glass.

FIG. 8 shows a state in which a frame portion of the plate glass is processed in a rhombus lattice shape, FIG. 9 shows a state in which a frame portion of the plate glass is processed in a circle, and FIG. 10 shows a frame portion in a form in which a plurality of circular rings are overlapped. It shows the state which processed. The edge processing apparatus according to the present invention is configured to freely move the laser focus within a predetermined range as described in FIG. 6, and can be processed in various forms (not shown) as shown in FIGS. 8 to 10. I can process the frame of the pane.

11 and 12 are cross-sectional views showing a state in which a multi-layer insulating glass panel using a general aluminum liver bar using the rim processing apparatus according to the present invention.

FIG. 11 shows a state in which only the surface to be bonded of the lower pane 1b on which the low-emission coating layer 2 is formed is processed, and FIG. 12 illustrates a state in which the surface of the upper pane 1a on which the coating layer is not formed is processed. It is shown. As shown in the figure, when the fine bend is formed on the surface of the plate glass 1b or 1a, the contact area between the sealant 3 and the surface of the plate glass is widened, thereby increasing the adhesion force. Reference numeral 4 that is not described shows an aluminum liver rod including a moisture absorbent therein.

13 and 14 is a cross-sectional view showing a state of manufacturing a multi-layered insulating glass panel using an integral thermal insulation bar using the edge processing apparatus according to the present invention.

The integral heat insulation stick 5 is formed by integrally forming the liver stick, the moisture absorbent and the primary sealant, and the secondary sealant 6 is provided outside the integral heat insulation stick 5.

FIG. 13 shows a state in which only the surface to be bonded of the lower pane 1b on which the low-emission coating layer 2 is formed is processed, and FIG. 14 illustrates a state in which the surface of the upper pane 1a on which the coating layer is not formed is processed. It is shown.

15 and 16 are cross-sectional views showing a state in which a vacuum multilayer glass panel is manufactured by using the edge processing apparatus according to the present invention.

The vacuum multilayer glass panel is a kind of multilayer insulating glass panel, wherein a vacuum layer is interposed between two panes of glass, and a pillar 8 for maintaining a gap between the vacuum layers is provided.

FIG. 15 shows a state in which a vacuum multilayer glass panel is manufactured by joining two sheets of the same size glass. FIG. 16 shows two sheets of glass having a size smaller than that of the lower glass 1b. To show a state of manufacturing a vacuum multilayer glass panel.

In the case of a vacuum multilayer glass panel, a low melting point glass 7 is used as the actual material. In this case, as shown in order to increase the adhesion of the low melting point glass 7, both edges of the upper and lower panes are processed according to the present invention. It is preferable to give minute curvature (roughness) to a surface by processing using an apparatus.

Hereinafter, look at with respect to the method of manufacturing a heat insulating multilayer glass panel using the edge processing apparatus according to the present invention.

In the method of manufacturing a heat insulating multilayer glass panel according to the present invention, a space is formed between two sheets of glass, and in the method of manufacturing a heat insulating multilayer glass panel in which the space is sealed by using a low melting glass or a synthetic resin sealant along both edges of the glass. To remove the coating film on the surface of the plate glass by irradiating UV-adhering surface to the adhered surface to which the low melting point glass or the synthetic resin sealant is bonded, while forming fine unevenness on the surface of the plate glass, the contact area between the low melting point glass or the synthetic resin sealant and the plate glass It is characterized by increasing the adhesion by increasing.

In order to keep the working environment clean and not to perform a separate washing operation, the gas is sprayed at a high pressure to the area irradiated with the UV laser to remove particles peeled off by the UV laser and dispersed by the high pressure gas. It is preferable to collect the particles to be vacuum inhaled. The UV laser used at this time preferably has a wavelength of 360 nm or less as described above.

The present invention removes a coating film that causes a decrease in adhesion by using a UV ray agent, and the surface is processed in a non-contact manner in such a manner as to form the roughness of the surface of the glass surface, thereby bringing an effect that can always be a surface quality of a certain quality. In addition, by removing the glass fragments that are peeled off using a high-pressure gas, there is no need for a separate washing process, thereby bringing the effect of keeping the working environment clean.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1, 1a, 1b: plate glass
2: low radiation coating layer
110: laser generator
120: blower
130: vacuum suction

Claims

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In the method of manufacturing a heat insulating multilayer glass panel to form a space between two sheets of glass and to seal the space by using a low melting glass or a synthetic resin sealant along the edge of both panes,
A laser generator for generating a UV laser having a wavelength of 360 nm or less, a blower for injecting a high pressure gas to an adhered surface of the surface of the plate glass to which the laser generated by the laser generator is irradiated, a gas injected from the blower and the injected gas And a vacuum inhaler disposed at a position facing the blower to suck the glass fragments of the glass surface dropped by the glass and to suck the sprayed gas and glass fragments. Using edge processing apparatus of heat insulation multilayer glass panel to give,
The low melting point glass or synthetic resin sealant is irradiated with a UV laser to remove the coating film on the surface of the plate glass by irradiating the surface and at the same time forming a fine irregularities on the surface of the plate glass, characterized in that for applying the low melting glass or synthetic resin sealant Method for manufacturing an insulated multilayer glass panel.

5. The method of claim 4,
The method of manufacturing a heat insulating multilayer glass panel, characterized in that to remove the particles peeled by the UV laser by spraying the gas at a high pressure to the area irradiated with the UV laser.

5. The method of claim 4,
A method of manufacturing a heat insulating multilayer glass panel, characterized in that the particles dispersed by the high pressure gas is collected by a vacuum inhaler.

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The method according to claim 6,
The high-pressure gas is compressed air, characterized in that the insulating glass panel manufacturing method.

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