JP3885322B2 - Method for producing double-glazed glass - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a multilayer glass, and more particularly to a method for producing a multilayer glass by extruding a resin material on a peripheral portion between a plurality of glass plates to form a resin spacer.
[0002]
[Prior art]
Currently known multi-layer glass has a minimum of two glass plates facing each other through a spacer provided along the circumference between the glass plates, and the glass plate and the spacer are adhered with a butyl sealant. After blocking the hollow portion between the glass plates and the outside air, the gap between the inner peripheral surface of the opposing glass plate and the outer surface of the spacer is sealed with a room temperature curable sealant typified by polysulfide or silicone. Manufactured by the method of wearing.
[0003]
Usually, the spacer is a hollow body made of aluminum with a hollow part inside, and cut in advance according to the size of the glass plate, and after filling the hollow part with a desiccant, each end is connected with a corner key. A frame assembled or a hollow part filled with a desiccant, bent at each corner, and joined to a frame by connecting ends with a connection key is used.
[0004]
In such a process for producing a multi-layer glass using a metal spacer, apart from the multi-layer process of a glass plate, there are many complicated processes such as spacer cutting, filling with a desiccant, and spacer assembly. Cost. In the sealing process of the sealing material, since the sealing material is a room temperature curing type, the line and the sealing device are soiled with an uncured sealing material, and the yield of the product is lowered. Furthermore, it cannot be shipped until the sealing material is cured, and a vast curing place is required. In many cases, aluminum is used for the spacer, but the portion where the aluminum spacer and the glass plate are in contact with each other serves as a heat conduction point, and there is a problem in that the heat insulating property of the multilayer glass is lowered.
[0005]
Therefore, a multi-layer glass using a resin spacer instead of a metal spacer has been proposed. For example, Japanese Patent Application Laid-Open No. 61-64415 discloses a method for uniformly forming a material based on butyl rubber on a glass plate. According to this method, after the resin material is supplied to one side of the glass plate to form the spacer, the other glass plate is laminated to form a multi-layer. The complicated work can be reduced. In addition, since the gap between the inner surface of the opposing glass plate and the outer surface of the spacer is sealed with the above-mentioned room temperature curable sealing material after it has been multilayered, it suppresses the deterioration of the thermal insulation of the multilayer glass it can.
[0006]
[Problems to be solved by the invention]
According to the method disclosed in JP-A-61-64415, a series of spacer assembling steps can be omitted from the conventional multi-layer glass manufacturing steps. However, the glass sheet multilayering process, the pressing process and the sealing material sealing process are still necessary.
[0007]
Japanese Patent Laid-Open No. 7-17748 discloses a method of directly extruding a hard resin material in which a desiccant is kneaded between two glass plates that are conveyed horizontally at a predetermined interval in the vertical direction. According to this method, the above-described multi-layering process and sealing material sealing process can be omitted, so that the manufacturing process can be simplified.
[0008]
In this method, the resin material is extruded and integrated (integral molding) while the glass plate is conveyed in a set of sides, and then the glass plate is rotated 90 degrees to integrate the resin material on the other set of sides. Make it. Therefore, there are four joints for each corner portion of the spacer.
[0009]
The double-glazed glass exhibits its heat insulation effect and dew condensation prevention effect by sealing the hollow layer between the two glass plates from the outside. Therefore, the accuracy of this sealing greatly affects the performance of the double glazing. Therefore, when many seams are generated as in the method of JP-A-7-17748, the performance of the double-glazed glass may be deteriorated.
[0010]
Further, the two glass plates are spaced so that a hollow layer is formed therebetween, and the die for extruding the resin material and the peripheral portion of the two glass plates are moved relative to each other while facing each other. A method of integrally molding a resin spacer by extruding a resin material from a die on the peripheral edge of the substrate has been proposed.
[0011]
In this method, the two glass plates are held in the vertical direction so that the movements of the two glass plates are simultaneously performed at the same speed in the same direction, and the movement directions of the glass plate and the die are orthogonal to each other. The movement of the glass plate and the die is each moved in one direction, and when one is moved, the die and the glass plate are moved relative to each other so that the other is stopped. It is the manufacturing method of the multilayer glass which extrudes resin material to the peripheral part between the glass plates which oppose, changing.
[0012]
According to this method, the problems of the conventional multi-layer glass listed above and the manufacturing method thereof can be solved. However, in this method, as shown in FIG. 18, a die 1 for integrally forming a resin spacer is formed. It inserts between the two glass plates 2 and 3 and extrudes the resin material 4 of a predetermined shape from the die 1 and integrates it by closely contacting the inner surfaces of the opposing glass plates 2 and 3.
[0013]
In this method, in order to ensure adhesion between the glass plates 2 and 3 while maintaining the extruded shape of the resin material 4, the dimension corresponding to the space between the glass plates 2 and 3 of the die 1 is between the glass plates 2 and 3. Although it is necessary to be as close as possible to the dimensions, on the other hand, there is a variation in the thickness of the glass plates 2 and 3, and if the size of the die 1 is too close to the size between the glass plates 2 and 3, Depending on the holding accuracy, there is a manufacturing problem that the die 1 and the glass plates 2 and 3 come into contact with each other and cause glass breakage.
[0014]
The present invention solves the conventional problems in the above-described method for producing a multi-layer glass, and is a multi-layer glass capable of easily and inexpensively producing a multi-layer glass having various performances such as heat insulation performance and anti-condensation performance. The object is to provide a manufacturing method.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, a method for producing a multilayer glass according to the present invention includes a die having a predetermined discharge port shape, in which a plurality of glass plates are spaced so that a hollow layer is formed therebetween, and a resin material is extruded. While relatively moving the peripheral edge portions of the plurality of spaced glass plates along the peripheral edge portion of the glass plate, the resin material is extruded from the die and resin spacers are provided on the peripheral edge portions between the opposing glass plates. In the method for producing a multi-layer glass to be molded, the die and the glass plate peripheral portion are arranged by facing the end surface of the glass plate while the discharge port of the die is opposed to the hollow layer formed between the glass plates. It is characterized by relative movement. Thereby, compared with the system which inserts die | dye between glass plates, the necessity of manufacture accuracy and the positional accuracy at the time of relative movement can be reduced. Further, by preventing the die from coming into contact with the glass plate, it is possible to improve yield and workability.
[0016]
Furthermore, the present invention provides a resin flow path inclined at an angle of 20 to 70 degrees from the inside of the die toward the rear of the die moving direction with respect to a line perpendicular to the moving direction of the die that moves relative to the glass plate. By using the die which has, the extrusion operation of the resin material between the glass plates becomes smooth.
[0017]
Further, according to the present invention, the die discharge port side surface is spaced apart from the end surface of the glass plate by a predetermined distance, and the die and the glass plate peripheral portion are relatively moved so that the discharge port side surface of the die does not contact the end surface of the glass plate. As a result, cracking of the glass plate is reliably prevented and the yield is improved.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0019]
1 is a perspective view of an example of an embodiment of the present invention, FIG. 2 is a plan view of an example of an embodiment of a die used in the present invention, and FIG. 5 is a side view of an example of an apparatus used in the method of the present invention. 6 is a front view of FIG. 5 seen from the VI direction. As shown in FIGS. 1 and 2, the die 5 used in the present invention has a narrow central portion and a width toward both left and right ends. A discharge port 6 having a wide butterfly cross section is provided. The die 5 is fixed to the tip of the mounting arm 7, and a resin flow path 16 (FIG. 3) described later provided inside the mounting arm 7 communicates with the discharge port 6.
[0020]
On the other hand, as shown in FIG. 5 and FIG. 6, the glass plates 2 and 3 are suction-supported by the suction pad 8 on the surface opposite to the facing surface, and the interval w is maintained between the glass plates 2 and 3. In this way, it is held in the vertical direction on the glass holding table 9. When the thickness of the glass plates 2 and 3 changes or the interval w between the glass plates 2 and 3 changes, another glass holding table 9 is prepared. A wheel 10 is provided below the glass holding table 9, and the wheel 10 is rotated by a drive mechanism (not shown) such as a drive motor, and the glass holding table 9 is held in the horizontal direction while holding the glass plates 2 and 3 vertically. It is supposed to move.
[0021]
The mounting arm 7 described in FIGS. 1 and 2 is connected to an extruder 13 via a resin supply pipe 12 having a swivel joint 11 as shown in FIG. The mounting arm 7 can be moved vertically up and down by a drive motor or the like along the linear rail 14 provided vertically. Further, the mounting arm 7 can be rotated 90 degrees about the axis of the mounting arm 7 by a rotation motor or the like (not shown).
[0022]
FIG. 3 is a side view of an example of an embodiment of the die 5 used in the present invention, and FIG. 4 is a sectional view taken along the line IV-IV in FIG. A distance e of about 0.1 to 0.5 mm is maintained between the surface of the die 5 and the surface of the die 5 so that the surface of the die 5 does not contact the end surfaces of the glass plates 2 and 3.
[0023]
The die 5 has a glass plate surface direction and a line S perpendicular to the moving direction of the die 5 that moves relative to the glass plates 2 and 3 from the inside of the die 5 to the rear of the moving direction of the die 5. A resin flow path 16 that is inclined at an angle of 1 to 90 degrees, preferably 20 to 70 degrees and communicates with the discharge port 6 is provided.
[0024]
As shown in FIG. 4, the dimension of the width d of the resin flow path 16 reaching the discharge port 6 of the die 5 is made slightly smaller than the dimension of the interval w between the glass plates 2 and 3. For example, when the interval w between the glass plates 2 and 3 is 12.0 mm, the width d of the resin flow path 16 in the direction corresponding to the interval w is set to a dimension of about 10.5 to 11.0 mm. This is because when the resin material 4 that has passed through the resin flow path 16 is discharged from the discharge port 6, the pressure applied to the resin material 4 is released, and the size of the resin material 4 increases.
[0025]
Further, on the rear side in the moving direction of the die 5 that moves relative to the glass plates 2 and 3, as shown in FIG. 3, a resin presser having an elastic function such as a spring that presses the end surfaces of the glass plates 2 and 3. A tool 15 is provided.
[0026]
As a result, the resin extruded from the extruder 13 shown in FIG. 5 is transferred from the die 5 to the peripheral portion between the opposing surfaces of the two glass plates 2 and 3, as shown in FIGS. It is designed to discharge. In addition to the discharge port 6 for discharging the resin shown in FIG. 1, the die 5 is provided with a gas injection port (not shown), and the two glass plates 2 and 3 are opposed to each other from the gas injection port when discharging the resin. A gas such as dry air or a heat insulating gas can be blown between the surfaces in a dry state.
[0027]
Below, the process of manufacturing a multilayer glass using the die | dye 5 mentioned above is demonstrated.
When the glass plates 2 and 3 and the die 5 are arranged as shown in FIGS. 5 and 6, there is a point that it is not sufficient for mass production of the double-glazed glass due to an increase in the number of processes. For example, it is necessary to adjust or drive so that the die 5 and the glass holding base 9 do not interfere with each other on the lower side of the glass plates 2 and 3. Moreover, it is difficult to perform the process of providing the glasses 2 and 3 on the glass holding base 9 in a short time.
[0028]
Therefore, it is preferable to produce a multilayer glass by a method as shown in FIGS. In FIG. 7, the glass plate 2 is placed on a horizontal conveyor 18 so as to stand vertically against a table 17 rising in the vertical direction. Next, the conveyor 18 is driven to move the glass plate 2 horizontally to the right in FIG. 7 by the conveyor 18, and the glass plate 2 is positioned at a predetermined position by a stopper 19 that can be inserted and removed on the moving path of the glass plate 2.
[0029]
The stopper 19 uses, for example, a pin inserted into a hole formed in the table 17 or a sensor for detecting the glass plate, and the movement of the conveyor 18 when the glass plate 2 reaches a predetermined position. May be stopped.
[0030]
Next, as shown in FIG. 8, the vertical holding frame 21 moving on the horizontal linear rail 20 is moved to the stop position of the glass plate 2, and the suction pad provided on the holding frame 21 via a cylinder or the like (not shown). While moving forward toward the surface of the glass plate 2 and sucking and holding the glass plate 2, the glass plate 2 is moved backward by a predetermined distance. At this time, if the stopper 19 is connected to the bar 22 provided on the holding frame 21 and pulled out, the work of removing the stopper 19 from the hole of the table 17 in the subsequent process becomes easy.
[0031]
Similarly, the other glass plate 3 is placed on the horizontal conveyor 18 so as to stand vertically on the table 17, moved to the stopper 19, and positioned at the same position as the glass plate 2. As a result, the two glass plates 2 and 3 are placed on the conveyor 18 with an interval corresponding to the retraction of the suction pad, and the glass plate 2 is the holding frame 21 and the glass plate 3 is the table 17. It is held vertically.
[0032]
Next to the table 17 in the moving direction of the conveyor 18, another table 23 is provided on the same vertical plane as the table 17 with the die 5 interposed therebetween. The other conveyor 24 is provided on the extended surface of the conveyor 18.
[0033]
Then, as described above, the two glass plates 2 and 3 are vertically held on the conveyor 18 with a spaced hollow layer, and then the speed at which the conveyors 18 and 24 are moved and the holding frame 21 moves on the linear rail 20. The two glass plates 2 and 3 are moved toward the table 23 and the conveyor 24 while maintaining the same speed, and the vertical edge at the rear of the glass plates 2 and 3 in the moving direction is the die 5 as shown in FIG. When the vehicle passes slightly below, the movement of the conveyors 18 and 24 and the holding frame 21 is stopped, and the glass plates 2 and 3 are stopped.
[0034]
The die 5 can move up and down in the gap between the tables 17 and 23, and waits above the gap between the tables 17 and 23. As shown in a partially enlarged view of the die 5 in this state, the discharge port 6 is directed to the vertical edge at the rear in the moving direction of the glass plates 2 and 3, and the discharge port 6 is between the glass plates 2 and 3. As shown in FIG. 10, the resin material 4 is discharged from the discharge port 6 so that the hollow layer faces the space e (FIG. 3) and the discharge port 6 is not disposed between the glass plates 2 and 3. The die 5 is lowered. At this time, the resin material 4 is uniformly extruded between the vertical edges on the left side of the glass plates 2 and 3 in FIG. 10 by controlling and synchronizing the downward movement speed of the die 5 and the discharge amount of the resin material. be able to.
[0035]
As shown in FIG. 16 which is a partially enlarged view, as soon as the die 5 reaches the lower ends of the glass plates 2 and 3, the lowering of the die 5 is stopped and the die 5 is rotated 90 degrees counterclockwise. At this time, an excessive supply of the resin material 4 is prevented by controlling the amount of the resin material 4 discharged from the discharge port 6, and the resin material 4 is uniformly extruded into the hollow layers of the corner portions of the glass plates 2 and 3. To.
[0036]
After the die 5 has been rotated 90 degrees counterclockwise, the conveyors 18 and 24 and the holding frame 21 are moved toward the table 17 as shown by arrows in FIG. , 3 are moved to the left, and simultaneously the resin material 4 is discharged from the discharge port 6 of the die 5 as shown in the partially enlarged view of FIG. Also at this time, the movement of the glass plates 2 and 3 and the discharge amount of the resin material 4 are controlled and synchronized.
[0037]
As a result, as shown in FIGS. 11, 16, and 17, the resin material 4 can be uniformly extruded between the left vertical edge of the glass plates 2 and 3 and the lower edge of the glass plates 2 and 3. .
[0038]
When the right ends of the lower edges of the glass plates 2 and 3 reach the position of the die 5 by moving the glass plates 2 and 3 to the left, the movement of the conveyors 18 and 24 and the holding frame 21 is stopped, and the discharge port of the die 5 The die 5 is rotated 90 degrees counterclockwise while controlling the amount of the resin material 4 discharged from 6 to prevent excessive supply of the resin material 4.
[0039]
After the die 5 is rotated 90 degrees counterclockwise, the resin material 4 is discharged from the discharge port 6 of the die 5 while raising the die 5 along the right vertical edge of the glass plates 2 and 3 as shown in FIG. Is discharged. At this time, by extending the bar 22 and retracting it before the die 5 is raised, the rise of the die 5 is not interfered, and the resin material 4 is uniformly extruded between the right vertical edges of the glass plates 2 and 3. Can do.
[0040]
When the die 5 reaches the upper end of the right vertical edge of the glass plates 2 and 3, the die 5 stops rising, and the amount of the resin material 4 discharged from the discharge port 6 of the die 5 is controlled to control the excess of the resin material 4. While preventing the supply, the die 5 is rotated 90 degrees counterclockwise.
[0041]
After the die 5 is rotated 90 degrees counterclockwise, the conveyors 18 and 24 and the holding frame 21 are moved to the right as shown by arrows in FIG. 13 at the same speed, and the glass plates 2 and 3 are moved to the right. Simultaneously with the movement, the resin material 4 is discharged from the discharge port 6 of the die 5 in an amount controlled and synchronized with the moving speed of the glass plates 2 and 3.
[0042]
When the left end of the upper edge of the glass plates 2 and 3 reaches the position of the die 5, the movement of the conveyors 18 and 24 and the holding frame 21 is stopped, and the discharge of the resin material 4 from the discharge port 6 of the die 5 is also stopped. The resin material 4 is uniformly and uniformly filled in the entire periphery of the hollow layer of the glass plates 2 and 3, and the resin material 4 is solidified, so that a resin spacer 25 is formed on the periphery between the opposing glass plates 2 and 3. Is formed to complete the double glazing.
[0043]
Next, as shown in FIG. 14, the die 5 is rotated 90 degrees counterclockwise and returned to the initial standby position, the suction of the suction pads provided on the holding frame 21 is released, and the holding frame 21 is moved to the table 17. The finished multilayer glass is carried out by the conveyor 24.
[0044]
As described above, the resin material 4 is extruded from the die 5 to the peripheral portion between the opposing glass plates 2 and 3 while the die 5 for extruding the resin material 4 and the peripheral portions of the glass plates 2 and 3 are moved relative to each other. When manufacturing the multilayer glass by integrally forming the spacer 25, the discharge port 6 of the die 5 always faces the hollow layer formed between the glass plates 2 and 3, and the surface of the die 5 is By separating the end surfaces of the glass plates 2 and 3 and moving the die 5 relative to the glass plates 2 and 3 without contacting them, the glass plates 2 and 3 are prevented from cracking and the yield is improved. Workability can be improved.
[0045]
Further, the resin flow path 16 of the die 5 is directed in the direction of the glass plate and toward the rear in the moving direction of the die 5 that moves relative to the glass plates 2 and 3, preferably 1 to 90 degrees, preferably 20 degrees to The resin material 4 discharged from the die 5 is smoothly applied to the hollow layer formed between the glass plates 2 and 3 because it is inclined from the inside of the die 5 and communicated with the die discharge port 6 at an angle of 70 degrees. Inserted.
[0046]
In the above process, the friction between the glass plate 3 and the tables 17 and 23 is reduced by providing a plurality of airflows on the surfaces of the tables 17 and 23 so that the glass plates 2 and 3 are not displaced. Is preferred. It is also preferable to restrict the positions of the glass plates 2 and 3 by the stopper 19 because the positional displacement of the glass plates 2 and 3 can be prevented.
[0047]
Moreover, in embodiment mentioned above, although the surface on the opposite side to the surface which the glass plates 2 and 3 oppose is hold | maintained, you may hold | maintain not only this but the end surface of the glass plates 2 and 3. FIG. That is, even when the end surfaces of the glass plates 2 and 3 are held, the relative movement between the die 5 and the glass plates 2 and 3 is not hindered. As for the holding position, both the opposite surface and the end surface of the glass plates 2 and 3 can be used in combination. Considering that the distance between the glass plates 2 and 3 is appropriately selected and can be easily changed, it is preferable to suck and hold the surface opposite to the facing surface.
[0048]
Further, a gas blowing port (not shown) is provided in the die 5 in addition to the discharge port 6 for discharging the resin shown in FIG. 1, and the spacers 25 of the resin material 4 are integrally filled in the entire periphery of the hollow layers of the glass plates 2 and 3. At the same time, it is preferable to blow dry gas such as dry air or heat insulating gas into the hollow layer. As a method for blowing dry gas, for example, a dry gas having a predetermined flow rate is blown between the glass plates 2 and 3 from a gas blowing port provided at the tip of the die 5 through a supply hose or the like from a dry gas supply device. .
[0049]
As a result, the air between the glass plates 2 and 3 is replaced with a dry gas, moisture in the gas encapsulated in the multilayer glass can be reduced, and condensation is prevented. The use of a gas having a lower thermal conductivity than dry air, that is, a so-called heat insulating gas, as the dry gas can enhance the heat insulating properties of the multilayer glass. Argon gas, krypton gas, sulfur hexafluoride gas and the like are suitable as the heat insulating gas.
Also, higher adhesive strength can be obtained by applying an adhesive in advance to the locations where the spacers 25 of the glass plates 2 and 3 are integrally filled.
[0050]
As the glass plates 2 and 3 used in the present invention, a normal single-layer inorganic glass plate, laminated glass, tempered glass, and the like, and transparent organic glass plates such as polycarbonate and acrylic resin can be used. Moreover, various functional coatings such as a concealing coating called a so-called dark ceramic color and a heat ray reflecting function may be applied to the peripheral edge of the glass plate. Further, when a plurality of glass plates are arranged between two glass plates while maintaining a distance and a plurality of dies 5 are used, a predetermined holder is provided at the edge where the resin material 4 is finally extruded, By retracting the holder when filling the spacer 25, it is possible to manufacture a double-layer glass using three or more glass plates.
[0051]
The relative movement procedure of the die 5 and the glass plates 2 and 3 is not limited to the order of the illustrated embodiment, but the operation is started from the state shown in FIG. 11, and FIGS. 12, 13, 14, 7, 8, and 9 are started. The relative movement can also be performed in this order. Furthermore, the standby position of the first die 5 is lowered, the die 5 is moved from the lower side to the upper side as shown in FIG. 12, and the die 5 is later moved from the upper side to the lower side as shown in FIG. You can also In these cases, the standby position of the die 5 is appropriately selected according to the order of each process.
[0052]
The moving means for moving the glass plates 2 and 3 is not limited to the conveyors 18 and 24. For example, the glass plate 2 may be moved by a robot having a suction plate at the tip of the robot arm. In this case, by teaching the robot in advance the movement trajectory and movement speed so that the movement is the same as the movement of the glass plate 3, the positions of the two glass plates 2 and 3 are not displaced and are moved to the entire periphery. A multi-layer glass in which resin spacers 25 are uniformly and uniformly filled can be manufactured. In any case, using the predetermined control means, the two glass plates 2 and 3 are moved in the same direction at the same speed while keeping the predetermined distance between the two glass plates 2 and 3. That's fine.
[0053]
The resin material 4 is not particularly limited as long as it is a material that can be extruded, but a thermoplastic resin material is suitable. Thermoplastic resin material has fluidity that can be easily extruded by simply applying heat, and the cooling and solidification time of the material after extrusion molding is short. Therefore, curing time is not required in the multi-layer glass manufacturing process, a curing space is unnecessary, handling becomes easy, and short-term delivery can be handled.
[0054]
【The invention's effect】
According to the present invention, a plurality of glass plates are spaced so that a hollow layer is formed therebetween, a die having a predetermined discharge port shape for extruding a resin material, and the plurality of spaced glass plate peripheral portions In the method for producing a multilayer glass, the resin material is extruded from the die and the spacer made of resin is formed on the peripheral edge between the opposing glass plates while the die is relatively moved along the peripheral edge of the glass plate. While the die outlet is facing the hollow layer formed between the glass plates, the die is placed opposite to the end surface of the glass plate and the die and the peripheral edge of the glass plate are moved relative to each other. Compared with this method, the need for manufacturing accuracy and positional accuracy during relative movement can be reduced, and by not allowing the die to contact the glass plate, yield and workability can be improved.
[0055]
In particular, the resin flow path of the die is 1 degree to 90 degrees, preferably 20 degrees to 70 degrees with respect to a line perpendicular to the moving direction of the die that moves in the glass plate surface direction and moves relative to the glass plate. By inclining from the inside of the die at an angle and communicating with the die discharge port, the resin material discharged from the die has an effect of being smoothly inserted into the hollow layer formed between the glass plates.
[0056]
Further, according to the present invention, the die discharge port side surface is spaced apart from the end surface of the glass plate by a predetermined distance, and the die and the glass plate peripheral portion are relatively moved so that the discharge port side surface of the die does not contact the end surface of the glass plate. As a result, cracking of the glass plate is reliably prevented and the yield is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part showing an example of a method for producing a multilayer glass of the present invention.
FIG. 2 is a plan view showing an example of a die used in the present invention.
FIG. 3 is a side view showing an example of an arrangement relationship between a die and a glass plate in the present invention.
4 is a cross-sectional view taken along the line IV-IV in FIG. 3;
FIG. 5 is a side view showing an example of an apparatus used in the method for producing a multilayer glass of the present invention.
FIG. 6 is a front view of FIG. 5 viewed from the VI direction.
FIG. 7 is a front view showing an example of steps in the present invention.
FIG. 8 is a front view showing an example of steps in the present invention.
FIG. 9 is a front view showing an example of steps in the present invention.
FIG. 10 is a front view showing an example of steps in the present invention.
FIG. 11 is a front view showing an example of steps in the present invention.
FIG. 12 is a front view showing an example of steps in the present invention.
FIG. 13 is a front view showing an example of steps in the present invention.
FIG. 14 is a front view showing an example of steps in the present invention.
FIG. 15 is a partially enlarged front view showing an example of steps in the present invention.
FIG. 16 is a partially enlarged front view showing an example of steps in the present invention.
FIG. 17 is a partially enlarged front view showing an example of steps in the present invention.
FIG. 18 is a perspective view showing a usage state of a conventional die.
[Explanation of symbols]
2: Glass plate
3: Glass plate
5: Die
6: Discharge port
16: Resin flow path
25: Spacer
S: Line

Claims (2)

A plurality of glass plates are spaced so that a hollow layer is formed between them, and a die having a predetermined discharge port shape for extruding the resin material and the plurality of spaced glass plate peripheral portions are formed by the die. In the method for producing a multi-layer glass, in which the resin material is extruded from the die and the spacers made of resin are formed between the glass plates at the peripheral edges of the opposing glass plates while relatively moving along the peripheral edge of the die. The die is disposed opposite to the end surface of the glass plate at a predetermined interval so that the outlet faces the hollow layer formed between the glass plates and is not disposed between the glass plates, and the discharge port is the end surface of the glass plate A die and a glass plate peripheral part are moved relative to each other so as not to come into contact with the glass.   Inclined at an angle of 20 to 70 degrees from the inside of the die toward the rear of the die moving direction with respect to a line perpendicular to the die moving direction that is relative to the glass plate in the glass plate surface direction. The method for producing a multilayer glass according to claim 1, wherein a die having a resin flow path is used.

Images