KR102306143B1 - Device for manufacturing a vacuum glazing - Google Patents

Abstract

The present invention relates to a vacuum glass, an apparatus for manufacturing the vacuum glass, and a method for manufacturing the same.
A vacuum glass manufacturing apparatus according to an embodiment of the present invention includes: a plate glass assembly disposed between the first and second plates and pressed by the first and second plates; a heater device provided on at least one of the first plate and the second plate to heat the plate glass assembly; and an elastic member provided on the lower side of the first plate to provide an upward restoring force, so that pressing and bonding of the plate glass assembly can be made easily.

Description

Device for manufacturing a vacuum glazing

The present invention relates to an apparatus for manufacturing vacuum glass.

Glass can be used for the doors of household appliances. For example, the glass may be used for a door of a refrigerator. When glass is applied to the door of the refrigerator, there is an advantage in that food stored in the refrigerator can be easily checked through the glass of a transparent material without opening the door.

However, due to the nature of the glass itself, the thermal insulation rate is low, so the cold air stored in the refrigerator leaks to the outside through the glass. In particular, when the glass is composed of a single layer of plate glass, the problem of low thermal insulation rate may become more serious.

In order to compensate for such a low thermal insulation rate, the glass may be composed of a double-layer glass composed of at least two plate glass or a vacuum glass. The multilayer glass may be configured by injecting a specific gas having a low heat transfer rate between the two plate glasses.

And, the vacuum glass may be configured by forming a vacuum in the space between the two plate glass. In terms of the ability to block heat transfer inside and outside the glass, the vacuum glass may be more advantageous than the multilayer glass.

In relation to the vacuum glass, the following prior art is introduced.

1. Publication No. (published date): 10-2009-0036709 (April 15, 2009)

2. Title of invention: vacuum window glass and manufacturing method thereof

According to the prior art, the following problems exist.

First, when bonding two panes of glass, it is necessary to fasten a clip for fixing or pressing the two panes of glass, and since such a fastening operation has to be done manually by a worker, the manufacturing process is cumbersome and the cost increases.

Second, when the two plate glasses are bonded and the exhaust process is performed, an exhaust hole is formed on the front surface of any one of the two plate glasses, and there is a problem that the exhaust hole is exposed to the outside after exhaust finish.

On the other hand, in the prior art, in the process of bonding two plate glasses, there was a case in which a process of applying heat above a set temperature by putting the two plate glasses into a heating furnace was performed. When the heating furnace is used, there is a problem that there is a limitation in the amount of vacuum glass that can be heated at one time.

In addition, a plurality of plate glass assemblies composed of the two plate glasses can be laminated and heated to perform vacuum glass bonding. There was a problem with this.

The present invention has been proposed to solve these problems, and an object of the present invention is to provide a vacuum glass capable of improving thermal insulation performance, an apparatus for manufacturing the vacuum glass, and a method for manufacturing the same. In particular, an object of the present invention is to provide a vacuum glass capable of bonding plate glass by plate heating, an apparatus for manufacturing the vacuum glass, and a method for manufacturing the same.

In addition, in the process of performing a bonding process (heating process) by laminating a plurality of plate glass assemblies composed of two plate glasses, a vacuum glass and a vacuum glass that allow a uniform temperature to be applied between the plurality of plate glass assemblies using a heater An object of the present invention is to provide an apparatus for manufacturing and a method for manufacturing the same.

Another object of the present invention is to provide a vacuum glass, an apparatus for manufacturing the vacuum glass, and a method for manufacturing the same, which can improve the adhesion of the plate glass by fixing and pressing the plate glass assembly using an elastic member.

In addition, by providing an exhaust pipe on the side of the plate glass and performing a vacuum pumping process, the vacuum glass and the vacuum glass manufacturing apparatus and An object of the present invention is to provide a method for manufacturing the same.

In addition, a plurality of plate glass assemblies are stacked, and a plurality of exhaust pipes provided in each plate glass assembly are connected to perform an exhaust process through a single pump, and a vacuum glass, a vacuum glass manufacturing apparatus, and a manufacturing method thereof are provided. intended to provide

In an apparatus for manufacturing a vacuum glass according to an embodiment of the present invention, a first plate; a second plate spaced apart from the upper side of the first plate; first and second plate glasses disposed between the first and second plates, pressed by the first and second plates, and stacked in a vertical direction; a seating groove formed in the first plate glass or the second plate glass; a sealant provided to the rim portion of the first and second plate glass and the seating groove; an exhaust pipe provided on side surfaces of the first and second plate glass and coupled to the seating groove; a heater device provided on at least one of the first plate and the second plate to heat the first and second plate glass; an elastic member provided on a lower side of the first plate to provide an upward restoring force; and an exhaust head communicating with the exhaust pipe, the exhaust head comprising: a head body coupled to side surfaces of the first and second plates and having a pipe insertion portion into which the exhaust pipe is inserted; and a pipe heater disposed in the pipe insertion part and generating heat to cut the exhaust pipe, so that the pressurization and bonding of the first and second plate glass can be made easily.

The heater device may include: a first heater provided on the first plate; and a second heater provided on the second plate, so that uniform heating of the first and second panes is required.

A lower plate provided on a lower side of the first plate is further included, and the elastic member is disposed between the first plate and the lower plate, so that pressing for bonding of the first and second plate glasses can be easily made. .

The material of the elastic member is composed of inconel, the change in the elastic force is small, and accordingly the pressure applied to the first and second plate glass can be appropriately formed.

a pressing unit provided on an upper side of the second plate and pressing the second plate downward; and an adjustment device coupled to the pressing unit and adjusting the vertical height of the pressing unit, so that pressing and bonding of the first and second plate glass can be easily made.

A heat transfer sheet provided between the first and second plates and the first and second plate glass is further included, and the heat transfer sheet includes a graphite sheet, so that the first and second plates from the first and second plates are further included. Heat transfer to the plate glass is easy, and damage to the first and second plate glass can be prevented.

An exhaust head coupled to the side surface of the first and second plates and communicating with an exhaust pipe provided on the first and second panes is further included, so that the vacuum evacuation process of the first and second panes can be easily performed.

A pipe heater provided inside the exhaust head for cutting the exhaust pipe is further included, so that the exhaust pipe is easily cut.

According to another aspect, there is provided a method for manufacturing a vacuum glass, comprising the steps of: arranging first and second plate glasses vertically and assembling an exhaust pipe between the side surfaces of the first and second plate glasses to manufacture a plate glass assembly; seating the pane assembly on an upper side of a first plate; positioning a second plate on top of the pane assembly and pressing the pane assembly; driving a heater device provided on the first plate or the second plate to melt and compress the sealant provided on the first and second plate glasses; performing vacuum evacuation of the plate glass assembly through an exhaust head coupled to the side surfaces of the first and second plates; and cutting the exhaust pipe using a pipe heater, wherein the exhaust pipe is seated in seating grooves formed on an upper surface of the first plate glass and a lower surface of the second plate glass, and the sealant is melted and compressed. This step includes a step in which the sealant applied to the upper or lower portions of the seating groove and the exhaust pipe is melted and the exhaust pipe and the first and second plate glass are bonded to each other, so that the vacuum glass can be easily manufactured.

The pressing of the plate glass assembly includes pressing the plate glass assembly using a restoring force of an elastic member provided below the first plate.

and pressing the plate glass assembly by adjusting the height of the pressing unit provided on the upper side of the second plate.

In the vacuum glass according to another aspect, the first and second plate glass; a vacuum layer formed between the first plate glass and the second plate glass; a spacer provided in the vacuum layer and supporting the first and second panes; a sealant provided along the edges of the first and second panes and sealing the vacuum layer by bonding the first and second panes; an exhaust end port provided on the side surface of the first and second plate glass and performing exhaust from the vacuum layer; and an exhaust cap covering the outside of the exhaust closing port.

According to the present invention according to the above-described solution, there is an effect that a vacuum glass capable of improving thermal insulation performance can be manufactured.

In particular, since the first and second plate glass assemblies (hereinafter, “plate glass assembly”) are disposed between the first and second plates, the plate glass assembly can be heated using a heater provided in the first and second plates. (Plate heating method, plate heating), there is an advantage that the plate glass assembly can be easily made.

In addition, since a plurality of the heaters are provided and inserted into the first and second plates, there is an effect that heat can be uniformly transmitted to the plate glass assembly.

And, when performing the bonding process after stacking a plurality of the plate glass assemblies, if the heating process is performed by the heater, the first and second plates can form a uniform temperature, so the temperature deviation transmitted to each plate glass assembly may be small, and accordingly, it is possible to prevent adhesion failure from occurring.

In addition, since the elastic member is installed on the lower plate and mounted on the first plate on the upper side of the elastic member, the elastic member can press the first plate toward the plate glass assembly. Accordingly, there is an advantage that the fixing and pressing of the plate glass assembly can be easily made, and thus the adhesion of the plate glass can be improved.

In addition, since a plurality of the elastic members are arranged along the edge of the first plate, there is an effect that a uniform restoring force can be applied to the entire area of the first plate.

In addition, since an exhaust pipe is provided on the side surface of the plate glass and a vacuum pumping process can be performed, it is possible to prevent a phenomenon in which an exhaust hole is seen on the front or rear surface of the vacuum glass after completion of the manufacture of the vacuum glass. As a result, the reliability of the vacuum glass can be increased.

In addition, since the exhaust process can be performed by stacking a plurality of plate glass assemblies at once, in particular, since the exhaust process can be performed by connecting a plurality of exhaust pipes provided in each plate glass assembly to one pump, the manufacturing process of vacuum glass There is an advantage that this can be easily performed.

1 is a cross-sectional view showing the configuration of a vacuum glass according to an embodiment of the present invention.
2 is a perspective view showing the configuration of an apparatus for manufacturing a vacuum glass according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line III-III' of FIG. 2 .
FIG. 4 is an enlarged view of "A" of FIG. 3 .
5 is a view showing the arrangement of the first plate and the elastic member according to an embodiment of the present invention.
6 to 9 are views showing a manufacturing process of the plate glass assembly according to an embodiment of the present invention.
10 to 13 are views showing a process of bonding and evacuating a plate glass assembly using a manufacturing apparatus according to an embodiment of the present invention.
14 is a flowchart showing a method of manufacturing a vacuum glass according to an embodiment of the present invention according to an embodiment of the present invention.
15 is a view showing an exhaust process by stacking a plurality of plate glass assemblies according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention will be able to easily suggest other embodiments within the scope of the same spirit.

1 is a cross-sectional view showing the configuration of a vacuum glass according to an embodiment of the present invention.

Referring to FIG. 1 , a vacuum glass 10 according to an embodiment of the present invention may be used for a refrigerator door.

The vacuum glass 10 includes a plurality of plate glasses 110 and 120 . The plurality of plate glasses 110 and 120 include a first plate glass 110 and a second plate glass 120 disposed on one side of the first plate glass 110 .

The direction in which the first and second plate glasses 110 and 120 are disposed may vary depending on the viewing direction, but the second plate glass 120 may be disposed below the first plate glass 110 based on the drawing. A configuration in which the first and second plate glasses 110 and 120 are combined or assembled may be referred to as a “plate glass assembly”.

For example, when the vacuum glass 10 is used for a refrigerator door, the first plate glass 110 may form a front surface of the refrigerator door, and the second plate glass 120 may form a rear surface of the refrigerator door.

The first plate glass 110 and the second plate glass 120 are provided in a thin plate shape. For example, the thickness of the first and second plate glasses 110 and 120 may be formed in the range of 3.5 to 4.5 mm.

In addition, the first and second plate glasses 110 and 120 may have, for example, the shape of a quadrangular panel. In addition, the first and second plate glasses 110 and 120 may be provided to have the same size or shape.

The first and second plate glasses 110 and 120 may be configured to be bonded to each other. A sealant 170 may be provided between the first and second plate glasses 110 and 120 . In detail, the sealant 170 may be provided on the edge of the first plate glass 110 and the second plate glass 120 to seal the space between the first and second plate glasses 110 and 120 . have.

The sealant 170 may be applied to the first plate glass 110 . For example, the sealant 170 may be sprayed onto the first plate glass 110 . In addition, the sealant 170 may be made of a glass frit. When the first and second plate glasses 110 and 120 are assembled and heated after the plate glass assembly is formed, the sealant 170 may be melted and compressed between the first and second plate glasses 110 and 120 .

The first and second plate glasses 110 and 120 are disposed to be spaced apart from each other in the vertical direction, and a vacuum layer 180 may be formed in the spaced-apart space. That is, the vacuum layer 180 may be formed between the bottom surface of the first plate glass 110 and the top surface of the second plate glass 120 . The vertical width of the vacuum layer 180 is about 0.18 to 0.22 mm, and the vacuum pressure ^{may be 10 -3} Torr or less.

A spacer 130 for supporting the first and second panes 110 and 120 may be provided between the first and second panes 110 and 120 . The spacer 130 is provided in the vacuum layer 180 and may have, for example, a substantially cylindrical shape.

A lower portion of the spacer 130 may be supported on the upper surface of the second plate glass 120 , and the upper portion may support a lower surface of the first plate glass 110 .

The spacer 130 includes a plurality of spacers 130 . A diameter of the spacers 130 may be about 0.5 mm, and an interval between the plurality of spacers 130 may be about 25 mm.

An exhaust closing port 140 is provided in the space between the first and second plate glasses 110 and 120 . The exhaust closing port 140 may be provided on side portions of the first and second plate glasses 110 and 120 having a shape of a quadrangular panel. The “side portion” may mean a thin portion forming the thickness of the first and second plate glasses 110 and 120 .

The exhaust closing port 140 may be understood as a configuration in which the exhaust pipe 190 mounted between the first and second plate glasses 110 and 120 is cut and provided in the manufacturing process of the vacuum glass 10 . In detail, after performing the bonding and exhaust process of the plate glass assembly, the exhaust pipe 190 is cut by the pipe heater 285 and the inside thereof is sealed with a glass frit having a relatively low melting point. (see FIGS. 11 and 12).

The vacuum glass 10 further includes an exhaust cap 145 provided on side portions of the first and second plate glasses 110 and 120 . The exhaust cap 145 is disposed on the outside of the exhaust closing port 140 , has a cap shape that can cover the exhaust closing port 140 , and may be made of a metal material. The exhaust cap 145 prevents the pressure outside the vacuum glass 10 from acting on the exhaust closing port 140 , and thus the exhaust closing port 140 is separated from the vacuum glass 10 . can be prevented

Since the exhaust closing port 140 and the exhaust cap 145 are disposed on the side surface of the vacuum glass 10, it can be prevented from being exposed to the front or rear surface after the vacuum glass is manufactured. That is, since an exhaust hole or a configuration for exhaust is not formed on the front or rear surface of the vacuum glass 10 that the user mainly sees, the reliability of the insulation effect of the vacuum glass 10 can be improved.

The vacuum glass 10 further includes a gas adsorbent 160 (getter). The gas adsorbent 160 may be understood as a configuration capable of adsorbing moisture or gas that may be generated during the manufacturing process of the vacuum glass 10 .

That is, even if the vacuum layer 180 is formed inside the vacuum glass 10, moisture or a predetermined gas may be generated in the first and second plate glasses 110 and 120 or the spacer 130, and the gas adsorbent ( 160) adsorbs these gases, so that a vacuum state can be maintained. For example, the gas adsorbent 160 may include a non-evaporable getter activated when an electric current flows. After completion of the manufacture of the vacuum glass 10 , power supplied from the outside of the vacuum glass 10 may be supplied to the gas adsorbent 160 through a wire.

Figure 2 is a perspective view showing the configuration of a vacuum glass manufacturing apparatus according to an embodiment of the present invention, Figure 3 is a cross-sectional view taken along III-III' of Figure 2, Figure 4 is an enlarged "A" of Figure 3 It is a view, and FIG. 5 is a view showing the arrangement of the first plate and the elastic member according to an embodiment of the present invention.

2 to 5 , plate glass assemblies 110 and 120 according to an embodiment of the present invention are formed into vacuum glass 10 by bonding and evacuation processes using a vacuum glass manufacturing apparatus 200 (hereinafter "manufacturing apparatus"). can be manufactured.

In the manufacturing apparatus 200, a lower plate 210 forming a lower configuration of the manufacturing apparatus 100 and an upper spaced apart from the upper side of the lower plate 210 to press and fix the plate glass assemblies 110 and 120 A plate 215 is included. For example, the lower plate 210 and the upper plate 215 may have a quadrangular plate shape.

The manufacturing apparatus 200 further includes an elastic member 220 installed on the lower plate 210 . The elastic member 220 may be understood as a configuration that provides a restoring force to press the first plate 230 to the plate glass assemblies 110 and 120 . For example, the elastic member 220 may be installed on the upper surface of the lower plate 210 .

The elastic member 220 may include a compression spring.

And, the material of the elastic member 220 may be composed of inconel (inconel). The Inconel is understood as a heat-resistant alloy material containing nickel as a main component and adding 15% chromium, 6-7% iron, 2.5% titanium, and 1% or less aluminum, manganese, and silicon. The Inconel has a small change in elastic force, and for example, the pressure applied by the first plate 230 to the plate glass assemblies 110 and 120 by the elastic member 220 is in the range of 1.4 to 1.6 kgf/cm 2 . can be formed in

The manufacturing apparatus 200 further includes a first plate 230 installed on the upper side of the elastic member 220 . The elastic member 220 may be disposed between the lower plate 210 and the first plate 230 . The first plate 230 may have a thin plate shape, and for example, the first plate 230 may have a quadrangular plate shape.

A plurality of the elastic members 220 may be provided. In addition, the plurality of elastic members 220 may be arranged along the edge of the first plate 230 . For example, referring to FIG. 5 , the plurality of elastic members 220 may be disposed to be spaced apart from each other along the bottom edge of the first plate 230 having a rectangular shape.

In addition, the plate glass assemblies 110 and 120 may be placed on the upper surface of the first plate 230 .

The manufacturing apparatus 200 further includes a second plate 240 provided above the plate glass assemblies 110 and 120 to fix the plate glass assemblies 110 and 120 and provide a downward pressing force. The shape of the second plate 240 may be the same as that of the first plate 230 .

The pane assemblies 110 and 120 may be disposed between the first and second plates 230 and 240 . In addition, a force pressed upward by the first plate 230 and the elastic member 220 is applied to the plate glass assemblies 110 and 120 , and is applied downward by the second plate 240 and the adjusting device 250 . The pressure force may act.

The upper plate 215 may be coupled to an upper side of the second plate 240 . In addition, in the manufacturing apparatus 200, the pressing part 255 coupled to the upper side of the upper plate 215 and the pressing part 255 are coupled to the rear of the pressing part 255 to adjust the height of the pressing part 255. An adjustment device 250 is further included.

The pressing part 255 and the adjusting device 250 are provided to be movable in the vertical direction. The upper plate 215, the pressing part 255 and the adjusting device 250 move downward toward the plate glass assemblies 110 and 120, so that the second plate 240 presses the plate glass assemblies 110 and 120. can guide By adjusting the height of the adjusting device 250 , the pressing force of the second plate 240 with respect to the plate glass assemblies 110 and 120 may be adjusted.

The manufacturing apparatus 200 further includes guide plates 260 provided on both sides of the pressing part 255 and the adjusting device 250 . The guide plate 260 fixes the positions of the pressing unit 255 and the adjusting device 250 and prevents shaking when the pressing unit 2550 and the adjusting device 250 move in the vertical direction. can do.

The guide plate 260 may be coupled to the rear of the upper plate 215 to extend in the vertical direction. When the upper plate 215 moves downward toward the lower plate 210 , a lower portion of the guide plate 260 may be coupled to the lower plate 210 .

The guide plate 260 includes a first guide plate 260a provided on one side of the pressing part 255 and the adjusting device 250 and a second guide plate 260b provided on the other side.

The manufacturing device 200 further includes heater devices 235 and 245 capable of heating the plate glass assemblies 110 and 120 . The heater devices 235 and 245 may be provided on the first and second plates 230 and 240 .

In detail, the heater devices 235 and 245 include a first heater 235 provided on the first plate 230 and a second heater 245 provided on the second plate 240 .

The first heater 235 is coupled to the first plate 230 . Also, the first heater 235 may have a bar shape. For example, a groove may be formed in the first plate 230 , and the first heater 235 may be inserted into the groove.

Based on the first plate 230 having a quadrangular panel shape, the first heater 235 extends in a direction perpendicular to the first corner of the first plate 230 , and the first plate 230 . ) may extend from the first corner portion toward the second corner portion. The first and second corner portions of the first plate 230 are corner portions facing each other, and may form two long sides of the first plate 230 .

A plurality of the first heaters 235 may be provided. The plurality of first heaters 235 may be spaced apart from each other and extend from the first corner portion to the second corner portion. In addition, the plurality of first heaters 235 may extend in parallel to each other.

The second heater 245 is coupled to the second plate 240 . In addition, the second heater 245 may have a bar shape. For example, a groove may be formed in the second plate 240 , and the second heater 245 may be inserted into the groove.

Based on the second plate 240 having a quadrangular panel shape, the second heater 245 extends in a direction perpendicular to the first corner of the second plate 240 , and the second plate 240 ) may extend from the first corner portion toward the second corner portion. The first and second corner portions of the second plate 240 are corner portions facing each other, and may form two long sides of the second plate 240 .

A plurality of second heaters 245 may be provided. The plurality of second heaters 245 may be spaced apart from each other and extend from the first corner portion to the second corner portion. In addition, the plurality of second heaters 245 may extend in parallel to each other.

The number of the first heaters 235 and the second heaters 245 may vary according to the sizes of the plate glass assemblies 110 and 120 . For example, one heater 235 and 245 may be provided per 0.05 to 0.1 m2 of the total area of the plate glass assemblies 110 and 120 .

The manufacturing apparatus 200 further includes heat transfer sheets 270 and 275 provided between the first and second plates 230 and 240 and the plate glass assemblies 110 and 120 .

In detail, in the heat transfer sheets 270 and 275 , the first sheet 270 and the second plate 230 and the plate glass assemblies 110 and 120 are disposed between the first plate 230 and the plate glass assemblies 110 and 120 . A second sheet 275 disposed between the . The first sheet 270 may be provided on an upper surface of the first plate 230 , and the second sheet 275 may be provided on a lower surface of the second plate 240 .

The first and second sheets 270 and 275 are provided at a portion where the plate glass assembly 110 and 120 and the first and second plates 230 and 240 contact each other, and the first and second sheets 270 and 275 are provided from the first plate 230 or the second plate 240 . It can increase the amount of heat transfer to the pane assemblies 110 , 120 .

Since heat is easily transferred to the plate glass assemblies 110 and 120 by the heat transfer sheets 270 and 275 , a temperature deviation over the entire area of the plate glass assemblies 110 and 120 can be reduced. For example, the temperature deviation may be within 10°C.

The heat transfer sheets 270 and 275 may include graphite sheets. The graphite sheet has a function of guiding heat transfer, and when the pressing force from the elastic member 220 or the adjusting device 250 is transmitted to the plate glass assemblies 110 and 120, the impact transmitted to the plate glass assemblies 110 and 120 It functions to prevent damage to the plate glass assemblies 110 and 120 by mitigating them.

For example, the graphite sheet may be provided with a thickness of about 0.2 to 5 mm.

6 to 9 are views showing a manufacturing process of a plate glass assembly according to an embodiment of the present invention, and FIG. 14 is a flowchart showing a manufacturing method of a vacuum glass according to an embodiment of the present invention according to an embodiment of the present invention A manufacturing process of the plate glass assembly will be described with reference to FIGS. 6A to 9 and FIG. 14 .

First, referring to FIG. 6A , the first plate glass 110 is prepared. The first plate glass 110 may be provided in a washed state. A seating groove 119 for coupling the exhaust pipe 190 is processed in the first plate glass 110 , and a gas adsorbent 160 may be provided on one surface of the first plate glass 110 ( S11 ).

A sealant 170 is applied to the first plate glass 110 . The sealant 170 may be applied along the edge of the first plate glass 110 . For example, the sealant 170 may be applied on one surface of the first plate glass 110 in a rectangular shape (S12).

The exhaust pipe 190 is coupled to the seating groove 119 . In addition, the sealant 170 may be applied to the lower portion of the seating groove 119 or the exhaust pipe 190 .

In addition, a sealant 170 that can be bonded to the second plate glass 120 is applied on the exhaust pipe 190 . After the sealant 170 is heated in the bonding process, it may be bonded to the first and second plate glasses 110 and 120 .

A spacer 130 may be installed on the upper surface of the first plate glass 110 . A plurality of the spacers 130 may be provided and may be arranged at preset intervals. For example, the plurality of spacers 130 may be arranged in a lattice (matrix) shape. The plurality of spacers 130 may protrude from the upper surface of the first plate glass 110 (S13).

The second plate glass 120 may be covered on the upper side of the first plate glass 110 . When the second plate glass 120 is disposed, the upper portions of the plurality of spacers 130 may support the lower surface of the second plate glass 120 .

A seating groove to which the exhaust pipe 190 is coupled may be formed in the second plate glass 120 . The seating groove of the second plate glass 120 may have the same configuration as the seating groove 119 of the first plate glass 110 . When the second plate glass 120 is loaded on the upper side of the first plate glass 110 , the exhaust pipe 190 may be fixed between the first and second plate glasses 120 . In this way, the "plate glass assembly" in which the first and second panes 120 are assembled may be provided (S14).

10 to 13 are views showing a process of bonding and evacuating a plate glass assembly using a manufacturing apparatus according to an embodiment of the present invention. With reference to FIGS. 10 to 14 , a method of manufacturing vacuum glass by performing bonding and exhausting processes with respect to the plate glass assembly will be described.

The plate glass assemblies 110 and 120 manufactured through the process of FIGS. 6 to 9 are moved to the manufacturing apparatus 200 and seated on the upper surface of the first plate 230 . The plate glass assemblies 110 and 120 may contact the first sheet 270 provided on the upper surface of the first plate 230 . As described above, an elastic member 220 may be provided between the first plate 230 and the lower plate 210 .

In addition, an exhaust head 280 may be coupled to the exhaust pipe 190 of the plate glass assemblies 110 and 120 ( S15 ).

The second plate 240 and the upper plate 220 are positioned above the plate glass assemblies 110 and 120, and the second plate 240 moves downward to a position where the plate glass assemblies 110 and 120 can be pressed. can The second sheet 275 provided on the lower surface of the second plate 240 may contact the plate glass assemblies 110 and 120 .

The adjusting device 250 is coupled to the rear side of the pressing part 255 coupled to the upper side of the upper plate 215 , and through the upward or downward movement of the adjusting device 250 , the second plate 240 is The magnitude of the force pressing the plate glass assemblies 110 and 120 may be adjusted. The magnitude of the force may be determined based on a required height of the vacuum layer 180 formed between the plate glass assemblies 110 and 120 (S16).

The first and second heaters 235 and 245 may be driven in a state where the first and second plates 230 and 240 press the plate glass assemblies 110 and 120 at upper and lower sides of the plate glass assemblies 110 and 120 .

When the first heater 235 is driven, the heat generated by the first heater 235 is transferred to the plate glass assemblies 110 and 120 through the first plate 230 therebetween. And, when the second heater 235 is driven, the heat generated by the first heater 235 is transferred to the plate glass assemblies 110 and 120 through the first plate 230 therebetween.

In this process, the sealant 170 provided in the plate glass assemblies 110 and 120 may be melt-compressed to seal the space between the first and second plate glasses 110 and 120, that is, the vacuum layer 180 (S17).

Thereafter, a pump 290 is connected to the exhaust head 280 to exhaust the gas present in the vacuum layer 180 .

In detail, the exhaust head 280 may be coupled or fastened to the side surfaces of the first and second plates 230 and 240 , and may be coupled to the exhaust pipe 190 provided in the plate glass assemblies 110 and 120 .

The exhaust head 280 includes a head body 281 having a cylindrical shape. The exhaust head 280 further includes a pipe insertion portion 283 formed on one surface of the head body 281 through which the exhaust pipe 190 passes. The exhaust pipe 190 may extend into the head body 281 through the pipe insertion part 283 . One surface of the head body 281 on which the pipe insertion part 283 is formed may be coupled to the side surfaces of the first and second plates 230 and 240 .

The exhaust head 280 further includes a pipe support 282 provided inside the head body 281 . The pipe support part 282 has a plate shape and may be coupled to an inner circumferential surface of the head body 281 . For example, the pipe support 282 may have a disk shape.

The exhaust pipe 190 may pass through the pipe support part 282 . That is, the exhaust pipe 190 may extend into the head body 281 through the pipe insertion part 283 and may be disposed to penetrate the pipe support part 282 .

The pipe support 282 includes a sealing member 284 coupled to the outside of the exhaust pipe 190 . The sealing member 284 may be provided at a position through which the exhaust pipe 190 passes among the pipe support parts 282 . Due to the configuration of the sealing member 284 , the exhaust pipe 190 is stably supported by the exhaust head 280 , and the inner space of the head body 281 is formed on both sides with the pipe support part 282 as the center. The confidentiality of the space can be maintained.

The exhaust head 280 further includes a pump connection 286 connected to the pump 290 . The pump connection part 286 may be connected to the other surface of the head body 281 . The other surface of the head body 281 may be a surface facing the one surface of the head body 281 on which the pipe insertion part 283 is formed. In addition, the pump connection part 286 may protrude from the other surface of the head body 281 .

The exhaust head 280 further includes a pipe heater 285 capable of cutting the exhaust pipe 190 . After the pump 290 is driven and exhaust inside the plate glass assemblies 110 and 120 through the exhaust pipe 190 is completed (vacuum pumping process), when the pipe heater 285 operates, the exhaust pipe 190 is can be cut.

The pipe heater 285 may be disposed in the pipe insertion part 283 . Accordingly, when the pipe heater 285 is operated, a portion of the exhaust pipe 190 located on the head body 281 is cut, and the remaining portion located outside the pipe insertion portion 283 remains. do.

A portion of the remaining pipe forms the exhaust closing port 140 . And, the inside of the exhaust closing port 140 may be sealed by the exhaust finishing material. In addition, the exhaust cap 145 may be coupled to the outside of the exhaust closing port 140 . The vacuum pumping process, evacuation and cutting process may be performed in a vacuum chamber in which a vacuum atmosphere is formed.

By the above process, when the bonding, exhausting, and cutting processes of the plate glass assemblies 110 and 120 are completed, the vacuum glass 10 can be easily manufactured (S18 and S19).

15 is a view showing an exhaust process by stacking a plurality of plate glass assemblies according to an embodiment of the present invention.

Referring to FIG. 15 , the exhaust process of the plate glass assembly described above may be performed using a single pump 290 ′ in a state in which a plurality of plate glass assemblies 10a , 10b , and 10c are stacked.

In detail, after performing the assembly process (S11 to S14) and the pressing and bonding processes (S15 to S17) of the plate glass assembly, the plurality of plate glass assemblies 10a, 10b, and 10c may be arranged to be stacked in the vertical direction. In one example, the plurality of pane assemblies 10a, 10b, 10c includes a first pane assembly 10a, a second pane assembly 10b and a third pane assembly 10c.

The first pane assembly 10a is positioned between the first and second plates 230a and 240a, and the second pane assembly 10b is positioned between the first and second plates 230b and 240b. In addition, the third pane assembly 10c may be positioned between the first and second plates 230c and 240c. That is, when the first and second plates and the pane assembly disposed between the first and second plates are referred to as a “plate assembly”, a plurality of plate assemblies may be arranged to be stacked.

To each plate assembly, an exhaust pipe and an exhaust head are coupled. That is, the first exhaust pipe 190a and the first exhaust head 280a are coupled to the side surfaces of the first plate assemblies 10a, 230a, and 240a. In addition, the second exhaust pipe 190b and the second exhaust head 280b are coupled to the side portions of the second plate assemblies 10b, 230b, and 240b, and the side portions of the third plate assemblies 10c, 230c and 240c are attached to the side portions. , the third exhaust pipe 190c and the third exhaust head 280c may be coupled.

The first to third exhaust pipes 190a, 190b, and 190c may be connected to one pump 290'. For example, a pump connection unit provided in each of the exhaust heads 280a, 280b, and 280c may be connected to the single pump 290'. When the pump 290' is driven, an exhaust process for vacuuming the plurality of plate glass assemblies 10a, 10b, and 10c may be performed at once.

As described above, since the exhaust process can be performed by connecting a plurality of exhaust pipes provided in each plate glass assembly to one pump, there is an advantage that the manufacturing process of vacuum glass can be conveniently performed.

10: vacuum glass 110: first plate glass
120: second plate glass 130: spacer
140: exhaust closing port 145: exhaust cap
170: sealant 180: vacuum layer
200: vacuum glass manufacturing device 210: lower plate
215: upper plate 220: elastic member
230: first plate 235: first heater
240: second plate 245: second heater
250: control device 255: pressurization unit

Claims (15)

In the vacuum glass manufactured by a manufacturing apparatus having a plate glass assembly comprising a vacuum layer formed between the first and second glasses provided in the form of a thin plate,
The manufacturing device is
A plate assembly including a first plate and a second plate spaced apart from the upper side of the first plate, wherein the plate glass assembly of vacuum glass is disposed between the first and second plates and is disposed on the first and second plates a plate assembly pressed by the; and
an exhaust head communicating with an exhaust pipe provided in the pane assembly;
The exhaust head is coupled to the side portion of the first and second plates,
The exhaust pipe protrudes from the side of the plate glass assembly between the first and second glasses and is inserted into the exhaust head,
The plate assembly is provided in plurality and is arranged to be stacked in the vertical direction,
A plurality of the exhaust pipe and the exhaust head are provided and coupled to the plurality of plate assemblies,
The plurality of exhaust pipes and the exhaust head are connected to one pump, and when the one pump is driven, an exhaust process in the plurality of plate assemblies is performed at once. The method of claim 1,
The exhaust head includes a head body forming a pipe insert through which the exhaust pipe passes,
One surface of the head body on which the pipe insertion part is formed is a vacuum glass coupled to the side surfaces of the first and second plates. 3. The method of claim 2,
The exhaust head is
It is provided on the inner peripheral surface of the head body, further comprising a pipe support having a plate shape,
The exhaust pipe is a vacuum glass penetrating the pipe support. 4. The method of claim 3,
The pipe support includes a sealing member coupled to the outside of the exhaust pipe,
The sealing member is a vacuum glass provided at a position through which the exhaust pipe passes among the pipe support parts. 3. The method of claim 2,
The exhaust head further comprises a pump connection connected to the one pump,
The head body has one surface on which the pipe insertion part is formed and the other surface on which the pump connection part is connected,
The one surface and the other surface are vacuum glass to form a surface facing each other. 3. The method of claim 2,
The exhaust head further comprises a pipe heater disposed in the pipe insertion portion,
When the pipe heater operates, a portion of the exhaust pipe positioned on the head body is cut, and the remaining portion positioned outside the pipe insertion portion remains. 7. The method of claim 6,
A portion of the remaining exhaust pipe forms the exhaust closing port,
The inside of the exhaust closing port is a vacuum glass sealed by an exhaust finishing material. 8. The method of claim 7,
Vacuum glass further comprising the exhaust cap coupled to the outside of the exhaust closing port. The method of claim 1,
a first heater provided on the first plate to heat the plate glass assembly; and
The vacuum glass further comprising a second heater provided on the second plate to heat the plate glass assembly. 10. The method of claim 9,
The first plate has a rectangular panel shape,
The first heater extends from the first edge of the first plate toward the second edge,
The first and second corners of the first plate are corners facing each other, and the vacuum glass forms two long sides of the first plate. 11. The method of claim 10,
A plurality of the first heater is provided,
The plurality of first heaters are spaced apart from each other and extend in parallel to each other. The method of claim 1,
The manufacturing device is
an elastic member provided on a lower side of the first plate to provide an upward restoring force; and
Further comprising a lower plate provided on the lower side of the first plate,
The elastic member is a vacuum glass disposed between the first plate and the lower plate. The method of claim 1,
The manufacturing device is
a pressing unit provided on an upper side of the second plate and pressing the second plate downward; and
It is coupled to the pressing unit, further comprising an adjustment device for adjusting the vertical height of the pressing unit,
The second plate, the pressing unit and the control device are vacuum glass provided to be movable in the vertical direction. The method of claim 1,
The manufacturing apparatus further includes a heat transfer sheet provided between the first and second plates and the plate glass assembly,
The heat transfer sheet,
a first sheet disposed between the first plate and the pane assembly; and
and a second sheet disposed between the second plate and the pane assembly. 15. The method of claim 14,
The heat transfer sheet is a vacuum glass comprising a graphite sheet (graphite sheet).

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