JPH11209148A - Production of double layer glass and apparatus thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently encapsulate dry gas into the hollow layer between a plurality of glass sheets by extruding a resin material from a die to the peripheral edges between the plurality of glass sheets to mold a resin spacer and blowing the dry gas into the hollow layer between the plurality of glass sheets during a molding stage. SOLUTION: The die 6 is made vertically movable perpendicularly along a linear rail and is made rotatable by 90 deg. each around the axial line of the die 6. The die 6 discharges the resin material from a resin discharge port 10 while moving relatively to the peripheral edges of the glass sheets 1, 2 according to such mechanism. The resin spacer 25 is integrally, uniformly and continuously formed at the entire peripheral edge of the hollow layer of the glass sheets 1, 2. The dry gas from the dry gas discharge port 12 is blown out into the hollow layer of the glass sheets 1, 2 continuously while the packing work of the resin material is carried out at the entire peripheral edge of the hollow layers of the glass sheets 1, 2 and, therefore, the double layer glass packed with the dry gas in the hollow layer between the glass sheets 1, 2 is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for manufacturing a double-glazed glass having a resin spacer in which a dry gas is sealed in a hollow layer.

[0002]

2. Description of the Related Art In a double glazing, after a metal spacer is disposed at the peripheral portion between two glass plates via a primary sealing material, the double-sided glass is formed between the facing surface of the glass plate at the peripheral portion and the outer surface of the spacer. It is manufactured by filling the formed portion with a secondary sealing material. In this case, a dry gas is sealed in the hollow layer formed between the two glass plates, so that the glass plates can be prevented from fogging.

Conventionally, as a first method of enclosing a dry gas in a hollow layer between two glass sheets of a double-glazed glass, a primary sealing material is produced during the production of the double-glazing, that is, before the secondary sealing material is filled. A method has been proposed in which a small gap is provided between the spacer and the glass plate interposed therein, a drying gas is poured into the hollow layer from there, and the glass plate is pressed against the spacer to fill the secondary seal.

[0004] As a second method, a thin tube is pierced and penetrated into each diagonal spacer of the completed double-glazed glass, and the inside of the hollow layer is replaced with a dry gas through the thin tube. A method has been proposed in which a thin tube is drawn out and filled with a resin material in a hole of a spacer formed by penetrating the thin tube.

[0005] In addition, instead of directly sending dry gas, as a third method, when producing a double-glazed glass, a metal spacer arranged at the peripheral portion between two glass plates is formed with a groove on the inner peripheral surface. A method has been proposed in which the hollow layer is formed into a hollow shape, and a desiccant is added to the hollow portion to keep the inside of the hollow layer in a dry state.

A fourth method is to form a spacer from a resin material, knead a desiccant into the resin material, and knead the spacer into a spacer formed on the periphery of the completed double-glazed glass. There has been proposed a method of keeping the inside of the hollow layer in a dry state by using a drying agent.

[0007]

However, according to the first and second methods, since it is necessary to put a dry gas into the inside of the hollow layer for each of the double glazings and then perform the sealing work. However, there was a problem that work efficiency was poor.

Further, the third and fourth methods have a problem that a pre-treatment operation such as putting a desiccant into a groove or kneading a desiccant into a resin material is difficult. Has a problem that the performance of the desiccant is deteriorated.

According to the present invention, when a resin spacer is formed on a peripheral portion between two glass plates, a dry gas is simultaneously blown into a hollow layer between the two glass plates. It is an object of the present invention to provide a method and apparatus for manufacturing a double glazing in which a dry gas is sealed efficiently.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for holding a plurality of glass plates in a vertical state by separating a plurality of glass plates so that a hollow layer is formed therebetween. A die for extruding a resin material in a predetermined shape and the plurality of glass plates are moved from the die to a peripheral portion between the plurality of glass plates while the die is relatively moved along the peripheral portion of the glass plate. And forming a resin spacer by extruding a dry gas into a hollow layer between a plurality of glass plates during the molding process. This eliminates the need for a separate step for blowing dry gas into the hollow layer between the plurality of glass plates.

In the present invention, the step of blowing the drying gas includes blowing the drying gas from an upper side or a lower side of the glass plate, and the relative movement is performed in a horizontal direction parallel to the glass plate surface of the glass plate. The extruding of the resin material is started from one corner of the glass plate, and the resin material is moved between the glass plates while moving the die along one vertical side of the glass plate. The drying gas comprises: a step (A) of extruding to a peripheral portion; and a step (B) of stopping the movement of the die and extruding the resin material to the peripheral portion between the glass plates while moving the glass plate in the horizontal direction. The present invention relates to an apparatus for manufacturing a double-glazed glass, wherein the step (A) and the step (B) are performed twice in this order so that the extrusion of the resin material to the upper side or the lower side of the blown side is the last step. Things. Thereby, the dry gas can be blown together with the formation of the spacer without obstructing the blowing of the dry gas by the formed spacer.

Further, the present invention provides a die which moves relative to a glass plate along a peripheral edge of a plurality of glass plates spaced so that a hollow layer is formed therebetween; A moving means for moving, and a resin material is extruded from the die to a peripheral portion between a plurality of glass plates in a predetermined shape to form a resin-made spacer. The present invention relates to an apparatus for manufacturing a double glazing, wherein a resin discharge port for extruding a material and a dry gas discharge port for blowing a dry gas into a hollow layer between the plurality of glass plates are provided. Thus, when the resin material is extruded from the die to the periphery of the plurality of glass plates to form a resin spacer, a dry gas can be blown into the hollow layer between the plurality of glass plates simultaneously with the extrusion of the resin material.

[0013] Further, the present invention provides a die for extruding a resin material at a peripheral portion between a plurality of glass plates spaced so that a hollow layer is formed therebetween, and supporting the plurality of glass plates in a vertical state. A glass plate moving unit for moving a plurality of glass plates in a horizontal direction in parallel with the glass plate surface, and a die moving unit for moving the die in a vertical direction, and the die extends along a peripheral portion of the glass plate. Moving means for moving the die and the glass plate, and a dry gas blowing slit arranged along the upper edge or the lower edge between the plurality of glass plates and blowing a dry gas into a hollow layer between the plurality of glass plates. And a dry gas supply source having the following. Thereby, when extruding the resin material from the die to the peripheral portion between the plurality of glass plates to form a resin spacer, the drying gas is smoothly formed into an air curtain from above or below the hollow layer between the plurality of glass plates. Can be blown.

Further, according to the present invention, the glass plate moving means includes:
In the apparatus for manufacturing a double glazing, wherein the drying gas supply source is moved while supporting the lower edges of the plurality of glass plates, the drying gas supply source is arranged along the glass plate moving means. It is related. Thereby, the dry gas can be blown together with the formation of the spacer without obstructing the blowing of the dry gas by the formed spacer.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a side view showing an example of the apparatus used in the method of the present invention, and FIG. 4 is a front view of FIG. 3 as viewed from the IV direction. Is supported by a suction pad 3 on the opposite side, and the glass holding table 4 is held so as to keep a space between the glass plates 1 and 2.
Is held vertically. When the thickness of the glass plates 1 and 2 changes or when the distance between the glass plates 1 and 2 changes, it is necessary to prepare another glass holding table 4. Wheels 5 are provided below the glass holding base 4, and the wheels 5 are rotated by a drive mechanism (not shown) such as a drive motor.
The glass holding table 4 moves horizontally while holding the glass plates 1 and 2 vertically. The dies 6 face the edges of the glass plates 1 and 2.

FIG. 1 is a longitudinal sectional front view showing an example of an apparatus used in the method of the present invention. FIG. 2 is a side view of FIG. The edges of the glass plates 1 and 2 are inserted so that the glass plate presser 9 provided on the die 6 abuts on the surface of the glass plates 1 and 2 opposite to the opposite surface. Has become.

The die 6 is provided with a resin discharge port 10 opened in a direction parallel to the edges of the glass plates 1 and 2, and a resin flow path 11 communicates with the resin discharge port 10. As shown in FIG. 1, a drying gas discharge port 12 is provided on the side of the die 6 opposite to the resin discharge port 10 (front side in the moving direction), and the dry gas discharge port 12 is supplied with the dry gas. The air flow path 13 communicates.

The above-described die 6 is provided with a resin / dry gas supply pipe 15 having a swivel joint 14 as shown in FIG.
The resin is supplied from the extruder 16 to the resin flow path 11 shown in FIG. 1, and is supplied to the air flow path 13 via a dry gas supply (not shown). Dry gas is supplied from the machine. The die 6 can be moved vertically up and down by a drive motor or the like along a linear rail 17 provided vertically. Further, the die 6 can be rotated by 90 degrees about the axis of the die 6 by a rotation motor (not shown) or the like.

Next, the steps of a method of blowing dry gas into the hollow layer between the two glass plates 1 and 2 using the above-described die 6 will be described.

In FIGS. 3 and 4, it is necessary to adjust or drive the die 6 and the glass holder 4 so that they do not interfere with each other at the lower sides of the glass plates 1 and 2.

Therefore, as shown in FIG. 5 or FIG. 12, which is a front view showing an example of a process of a method of blowing a dry gas into the hollow layer between the two glass plates 1 and 2, the die 6 is interposed therebetween. Vertical tables 18 and 19 are provided so as to be arranged on the same vertical plane, and the moving means 20 is provided below the tables 18 and 19 so as to protrude forward of the tables 18 and 19 in the figure. , 21 are arranged on one plane.
As the moving means 20 and 21, it is preferable to use a belt conveyor, a roller conveyor, or the like, which is driven by a motor or the like to be able to reversely rotate.

Then, as shown in FIG. 5, the glass plate 1 is placed on the moving means 20 so as to lean vertically on the table 18. Next, the moving means 20 is driven to move the glass plate 1 to the right in FIG. 5, and is positioned at a predetermined position by the stopper 22 attached to the table 18. The stopper 22 is provided, for example, by using a pin inserted into a hole formed in the table 18 or by using a sensor for detecting the glass plate, and moving the moving means 20 when the glass plate 1 reaches a predetermined position. You may make it stop.

Next, as shown in FIG. 6, the vertical holding frame 24 moving on the horizontal linear rail 23 is moved to the stop position of the glass plate 1 and is provided on the holding frame 24 via a cylinder or the like (not shown). The suction pad is advanced toward the surface of the glass plate 1 and is retracted by a predetermined distance before the drawing while holding the glass plate 1 by suction. At this time, the stopper 22 is attached to the bar provided on the holding frame 24.
Is connected, the operation of removing the stopper 22 from the hole of the table 18 in the subsequent process can be simplified.

Next, the other glass plate 2 is moved up to the stopper 22 so as to stand upright on the table 18 and positioned at the same position as the glass plate 1. As a result, the two glass plates 1 and 2 are placed on the moving means 20 with an interval corresponding to the retraction of the suction pad, and the glass plate 1 is the holding frame 24 and the glass plate 2 is the table. At 18 each is held vertically.

Next, while keeping the moving speed of the moving means 20 and 21 and the moving speed of the holding frame 24 on the linear rail 23 at the same speed, the two glass plates 1 and 2 are moved in FIG.
When the vertical edges of the glass plates 1 and 2 in the moving direction reach below the die 6, the moving units 20 and 21 and the holding frame 24 move as shown in FIG. Is stopped, and the glass plates 1 and 2 are stopped.

The die 6 can move up and down in the gap between the tables 18 and 19 and stands by above the gap between the tables 18 and 19. The die 6 at this position is rotated so that the resin discharge port 10 shown in FIG. 1 and FIG. The vertical edge at the rear of the moving direction 2 is inserted into the glass plate insertion portion 8 (see FIG. 2). 8 while discharging the resin material from the resin discharge port 10 and blowing out the dry gas from the dry gas discharge port 12 (see FIG. 1).
When the die 6 is further lowered as shown in FIG. 5, while the dry gas is blown into the hollow layer between the glass plates 1 and 2, the resin material is uniformly extruded between the left vertical edges of the glass plates 1 and 2 in the drawing. Die 6 descends.

At the same time when the die 6 reaches the lower ends of the glass plates 1 and 2, the lowering of the die 6 is stopped, and the die 6 is rotated 90 degrees counterclockwise. At this time, the drying gas discharge port 12 (FIG. 1)
), The excess supply of the resin material is prevented by controlling the amount of the resin material discharged from the resin discharge port 10 while the dry gas is blown out, and the resin is uniformly formed in the hollow layers at the corners of the glass plates 1 and 2. To extrude the resin material.

After the die 6 has been rotated by 90 degrees in the counterclockwise direction, as shown by arrows in FIG.
The holding frame 24 is moved from the table 18
The glass plates 1 and 2 are moved to the left at the same speed, and the resin material is discharged from the resin discharge port 10 and the dry gas is blown out from the dry gas discharge port 12.

According to the steps shown in FIGS. 8 and 9 described above, while blowing dry gas into the hollow layer between the glass plates 1 and 2,
As shown in FIG. 9, the resin material can be uniformly extruded between the left vertical edge of the glass plates 1 and 2 and the lower edge of the glass plates 1 and 2 in succession thereto.

As shown in FIG. 9, the glass plates 1 and 2 are moved to the left, and when the right ends of the lower edges of the glass plates 1 and 2 reach the position of the die 6, the moving means 20, 21 and the left side of the holding frame 24 are moved. The die 6 is moved in the counterclockwise direction while controlling the amount of the resin material discharged from the resin discharge port 10 while blowing the dry gas from the dry gas discharge port 12 while stopping the movement of the die 6.
Rotate 0 degrees.

After the die 6 has been rotated by 90 degrees in the counterclockwise direction, the die 6 is raised along the right vertical edges of the glass plates 1 and 2 from the resin discharge port 10 as shown by arrows in FIG. The resin material is discharged, and the dry gas is blown out from the dry gas discharge port 12. At this time, the bar is extended and the stopper 22 is retracted before the die 6 is raised, so that the rise of the die 6 is not interfered, and
The resin material can be extruded evenly between the right vertical edges of the glass plates 1 and 2 while blowing the dry gas into the hollow layer between them.

When the die 6 reaches the upper end of the right vertical edge of the glass plates 1 and 2, the rise of the die 6 is stopped, and the dry gas is discharged from the resin discharge port 10 while the dry gas is blown out from the dry gas discharge port 12. Die 6 while controlling the amount of resin material
Is rotated 90 degrees counterclockwise.

After the die 6 has been rotated 90 degrees counterclockwise, the moving means 20, 21 and the holding frame 24 are moved to the right at the same speed as indicated by arrows in FIG. Is moved to the right, the resin material is discharged from the resin discharge port 10, and the dry gas is blown out from the dry gas discharge port 12.

When the left ends of the upper edges of the glass plates 1 and 2 reach the position of the die 6, the moving means 20, 21 and the holding frame 2
4 is stopped, and the discharge of the resin material from the resin discharge port 10 and the blowing of the dry gas from the dry gas discharge port 12 are also stopped.

As a result, resin spacers 25 are integrally and continuously formed on the entire periphery of the hollow layers of the glass plates 1 and 2, and a resin material is applied to the entire periphery of the hollow layers of the glass plates 1 and 2. Since the dry gas from the dry gas discharge port 12 was continuously blown into the hollow layers of the glass plates 1 and 2 during the filling operation, the dry gas was Is completed.

Next, as shown in FIG. 12, the die 6 is rotated counterclockwise by 90 degrees and returned to the initial standby position.
The suction of the suction pad provided on the holding frame 24 is released, and the holding frame 24 is returned to the table 18.
The completed double glazing is carried out by the moving means 21.

FIG. 13 is a perspective view showing another example of an apparatus for carrying out the method of the present invention, wherein a belt conveyor is used for the moving means 20 and a roller conveyor is used for the moving means 21. I have. In the steps shown in FIGS. 5 to 12, the die 6 is moved counterclockwise relative to the peripheral edges of the glass plates 1 and 2 to fill the resin material while blowing out the dry gas. In the example of the apparatus shown in FIG. 13, the die 6 is moved in a clockwise direction relative to the peripheral edges of the glass plates 1 and 2 to fill the resin material while blowing out the dry gas.

FIG. 14 is a perspective view showing another example of an apparatus for carrying out the method of the present invention. FIG. 15 is a sectional view taken along the line XV-XV of FIG. ,
The one not having the dry gas discharge port 12 as shown in FIGS. 1 and 13 is used. Then, at a position above the moving means 21 composed of a roller conveyor and directly above the upper edges of the glass plates 1 and 2 moved by the moving means 21,
A drying gas supply duct 26 of a predetermined size is provided horizontally, and a drying gas blowing slit 27 is provided on the lower surface thereof along the hollow layer between the glass plates 1 and 2 mounted on the moving means 21. Is installed facing down.

The die 6 shown in FIG. 14 is rotated counterclockwise with respect to the periphery of the glass plates 1 and 2 on the moving means 21 as in the process shown in FIGS. 5 to 12 or the example of the apparatus described in FIG. Alternatively, the resin discharge port 10 is moved while being relatively moved clockwise.
And a spacer 25 is formed on the entire periphery of the hollow layers of the glass plates 1 and 2.

During the process in which the die 6 fills the periphery of the glass plates 1 and 2 with the resin material, the drying gas supply duct 2 is continuously
6 is supplied with a drying gas, and a drying gas blowing slit 27 is provided.
Dry gas is blown into the hollow layers of the glass plates 1 and 2 in the form of an air curtain. Thus, a double-glazed glass in which the hollow layer is filled with the dry gas is completed.

FIG. 16 is a perspective view showing another example of an apparatus for carrying out the method of the present invention, in which the die 6 has only the resin discharge port 10 and has a dry gas as shown in FIGS. The one not having the discharge port 12 is used. A drying gas supply duct 26 having a predetermined size is provided horizontally directly below the moving means 21 composed of a roller conveyor.
On its upper surface, a dry gas blowing slit 27 is attached upward so as to extend along the hollow layer between the glass plates 1 and 2 placed on the moving means 21.

The die 6 is provided on the glass plate 1 on the moving means 21.
The resin material is discharged from the resin discharge port 10 while moving relative to the peripheral edge of the glass plate 2, and the spacer 25 is formed on the entire peripheral edge of the hollow layers of the glass plates 1 and 2.

During the process in which the die 6 fills the periphery of the glass plates 1 and 2 with the resin material, the drying gas supply duct 2 is continuously
6 is supplied with a drying gas, and a drying gas blowing slit 27 is provided.
The drying gas is blown out into the hollow layers of the glass plates 1 and 2 in the form of an air curtain through the space between the roller conveyors. Thus, a double-glazed glass in which the hollow layer is filled with the dry gas is completed.

FIG. 17 is a perspective view showing another example of the apparatus for carrying out the method of the present invention, and the die 6 having only the resin discharge port 10 is used. And moving means 2
As 1, a belt conveyor in which a number of holes 28 are continuously formed in the longitudinal direction is used, and a drying gas supply duct 26 is horizontally provided between an upper surface side and a lower surface side of the belt conveyor. On the upper surface, a dry gas blowout slit 27 is attached upward so as to extend along the hollow layer between the glass plates 1 and 2 placed on the moving means 21.

The die 6 is provided on the glass plate 1 on the moving means 21.
The resin material is discharged from the resin discharge port 10 while relatively moving with respect to the peripheral edge of the glass plate 2, and the entire peripheral edge between the glass plates 1 and 2 is filled with the resin material.
6 is supplied with a drying gas, and a drying gas blowing slit 27 is provided.
The drying gas is blown into the hollow layers of the glass plates 1 and 2 through the holes 28 on the upper surface side of the belt conveyor.
Thus, a double-glazed glass in which the hollow layer is filled with the dry gas is completed.

[0047]

According to the first aspect of the present invention, a separate step for blowing dry gas into the hollow layer between a plurality of glass plates or a pretreatment step for using a desiccant is not required, thereby improving work efficiency. .

According to the second aspect of the present invention, the dry gas can be blown together with the formation of the spacer without obstructing the blowing of the dry gas by the formed spacer.

According to a third aspect of the present invention, when a resin material is extruded from a die to a peripheral portion between two glass plates to form a resin spacer, a dry gas is simultaneously formed in a hollow layer between the two glass plates. Can be blown, and work efficiency is improved.

According to the fourth aspect of the invention, a die having a simple structure can be used, and a dry gas can be blown in an air curtain shape over the entire width of the hollow layer between two glass plates. Efficiency is improved.

According to the fifth aspect of the present invention, the dry gas can be blown together with the formation of the spacer without obstructing the blowing of the dry gas by the formed spacer.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an example of an apparatus used in the method of the present invention.

FIG. 2 is a side view of FIG. 1 viewed from a direction II.

FIG. 3 is a side view showing an example of an apparatus used in the method of the present invention.

FIG. 4 is a front view of FIG. 3 as viewed from an IV direction.

FIG. 5 is a front view showing an example of steps for performing the method of the present invention.

FIG. 6 is a front view showing an example of steps for performing the method of the present invention.

FIG. 7 is a front view showing an example of steps for performing the method of the present invention.

FIG. 8 is a front view showing an example of steps for performing the method of the present invention.

FIG. 9 is a front view showing an example of steps for performing the method of the present invention.

FIG. 10 is a front view showing an example of steps for performing the method of the present invention.

FIG. 11 is a front view showing an example of steps for performing the method of the present invention.

FIG. 12 is a front view showing an example of steps for performing the method of the present invention.

FIG. 13 is a perspective view showing another example of an apparatus for performing the method of the present invention.

FIG. 14 is a perspective view showing another example of an apparatus for performing the method of the present invention.

FIG. 15 is a sectional view taken along line XV-XV in FIG. 14;

FIG. 16 is a perspective view showing another example of an apparatus for performing the method of the present invention.

FIG. 17 is a perspective view showing another example of an apparatus for performing the method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glass plate 2 Glass plate 6 Die 10 Resin discharge port 12 Dry gas discharge port 25 Spacer 27 Dry gas blowing slit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shogo Kodera Asahi Glass Co., Ltd., 1150 Hazawa-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Takashi Shibuya 1150 Hazawa-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Asahi Glass Co., Ltd.

Claims (5)

[Claims] And a die for extruding a resin material in a predetermined shape by holding a plurality of glass plates in a vertical state while separating the plurality of glass plates so that a hollow layer is formed therebetween. While the glass plate is relatively moved so that the die is along the periphery of the glass plate, a resin material is extruded from the die to the periphery of the plurality of glass plates to form a resin spacer. A method for producing a double glazing, wherein a dry gas is blown into a hollow layer between a plurality of glass plates during the step of. 2. The step of blowing the drying gas includes blowing the drying gas from an upper side or a lower side of the glass plate, and the relative movement includes moving the glass plate in a horizontal direction parallel to the glass plate surface and a die. The extrusion of the resin material is started from one corner of the glass plate, and the resin material is moved to the peripheral portion between the glass plates while moving the die along one vertical side of the glass plate. Extrusion process (A)
And the step (B) of stopping the movement of the die and extruding the resin material to the peripheral portion between the glass plates while moving the glass plate in the horizontal direction, the method comprising the steps of: The method according to claim 1, wherein the steps (A) and (B) are performed twice in this order so that the extrusion of the resin material is the last step. 3. A die which moves relative to the glass plate along a peripheral edge of a plurality of glass plates spaced so that a hollow layer is formed therebetween, and a movement which moves the glass plate and the die relative to each other. Means for extruding a resin material in a predetermined shape from the die to a peripheral portion between a plurality of glass plates to form a resin spacer, wherein the die is pressed with the resin material. An apparatus for producing double glazing, comprising: a resin discharge port for discharging a resin; and a dry gas discharge port for blowing a dry gas into a hollow layer between the plurality of glass plates. 4. A die for extruding a resin material at a peripheral portion between a plurality of glass plates separated so that a hollow layer is formed between the plurality of glass plates. A glass plate moving means for moving the glass plate in the horizontal direction parallel to the glass plate surface, and a die moving means for moving the die in a vertical direction, wherein the die is arranged so that the die is along the periphery of the glass plate. And a moving means for moving the glass plate, and a drying device having a drying gas blowing slit disposed along an upper edge or a lower edge between the plurality of glass plates and blowing a drying gas into a hollow layer between the plurality of glass plates. And a gas supply source. 5. The glass sheet moving means moves while supporting lower edges of a plurality of glass sheets, and the drying gas supply source is arranged along the glass sheet moving means. The apparatus for producing a double-glazed glass according to claim 4, wherein: