JPH0986972A - Reticulated glass having a sealing layer, method for producing the same, and multi-layer glass using the same - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To realize rust prevention of wire-cored glass, handling of the wire-cored glass after rust-proof treatment should be easy. SOLUTION: The reticulated glass has a sealing layer 3 formed from a thermoplastic resin material, which is provided on an end surface of the reticulated glass 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reticulated glass in which metal wires of reticulated glass are rust-proofed and a method for producing the same.

[0002]

2. Description of the Related Art As a method of rust-preventing corrugated glass, there is a method of applying and impregnating a rust-preventing oil or a rust-preventive agent in the gap between the glass layer and the metal wire on the end face of the reticulated glass. A method is also known in which an adhesive rubber tape, particularly a butyl rubber tape, is attached to the end surface.

In these rust-preventive treatment methods, the method of applying the rust-preventive agent is troublesome because the rust-preventive agent is manually applied to the end face of the meshed glass. Also,
Since the rust preventive applied to the net on the end face of the corrugated glass has a small film thickness, the rust preventive performance is not sufficiently exerted, and the rust preventive is likely to flow out in rainwater, etc. There was a problem.

In the method of sticking the adhesive rubber tape to the end face, the sticking work is often performed manually, which is a complicated work. Also, the rust prevention performance depends on the person depending on whether the sticking work is done carefully. It was something I would do.

Therefore, a method has been proposed in which a thermoplastic rubber is pressure-applied to a gap between a concave portion provided in a glass portion and a metal wire by using a discharge gun (Japanese Patent Publication No. 61-1285).
8). According to this method, in order to prevent the metal wire from being exposed from the end face of the mesh-filled glass, when sealing with the thermoplastic rubber, it is possible to perform automatic sealing by the discharge gun,
Complex work can be reduced.

[0006]

In the method proposed above,
Since thermoplastic rubber, especially hot-melt butyl rubber, is used as the sealing material, the surface is tacky even when cooled to room temperature, so be careful when handling treated reticulated glass and when using treated reticulated glass. There is a drawback that it becomes necessary and the workability is reduced. Further, in the above-mentioned thermoplastic rubber-based sealing material, when further processing the corrugated glass, for example, when manufacturing the multi-layer glass using the reticulated glass, a post-processing line such as a multi-layer glass manufacturing line In the above, there is also a drawback that the sealing material is crushed by its own weight of the meshed glass, and the dimensional accuracy of the meshed glass subjected to the end surface treatment is deteriorated.

An object of the present invention is to provide a reticulated glass having a novel sealing layer and a method for producing the same, which solves the above-mentioned drawbacks of the prior art.

[0008]

The present invention provides a reticulated glass having a sealing layer formed by adhering a band-shaped sealing layer made of a thermoplastic resin material to the end surface of the reticulated glass.

Further, the present invention is a mesh glass which has a band-shaped sealing layer made of synthetic resin on an end surface and is covered with a metal wire on the end face, wherein the sealing layer made of the synthetic resin is A mesh having a sealing layer, which is made of a thermoplastic resin material, is a molding layer extruded from a resin molding extruder toward the end surface of the glass with mesh, and is a sealing layer integrated with the end surface. Provide glass containing.

Further, the present invention is a mesh glass which has a band-shaped sealing layer made of synthetic resin on an end face and is covered with a metal wire on the end face, wherein the sealing layer made of synthetic resin is heat-resistant. A seal made of a plastic resin material, characterized in that one end of the reticulated glass is set as a start point and an end point, and the end face of the reticulated glass is wrapped around the end face of the reticulated glass and a sealing layer is adhered to the entire circumference of the reticulated glass. Provided is a corrugated glass having a coating layer.

Further, according to the present invention, the tip end of the resin molding extruder is arranged around the peripheral edge of the meshed glass, and the end face of the meshed glass and the die provided at the tip part of the resin molding extruder are provided. While relatively moving the die along the end face, the synthetic resin material is extruded from the discharge port provided in the die toward the end face of the reticulated glass, forming a band-shaped sealing layer to form the end face of the reticulated glass. Provided is a method for producing a reticulated glass having a sealing layer, which is characterized by being integrated with a glass.

In addition, according to the present invention, a plurality of glass plates are opposed to each other via a spacer so as to form an intermediate layer, and at least one of the glass plates is made of meshed glass, In a multi-layer glass in which the outer dimensions of the reticulated glass are smaller than the outer dimensions of the other glass plate, a sealing layer is provided on an end face of the reticulated glass, and the reticulated glass having the sealing layer The external dimensions are substantially the same as the external dimensions of the other glass plate, and the mesh-containing glass having the sealing layer is the mesh-containing glass having the sealing layer, or is obtained by the manufacturing method described above. There is provided a double glazing, which is a net-cored glass having a sealed layer.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a partial cross-sectional view showing an example of mesh glass having a sealing layer according to the present invention.
The meshed glass 2 is formed by embedding a mesh 1 composed of metal wires between upper and lower two glass layers. A strip-shaped sealing layer 3 made of a thermoplastic resin is provided on the entire circumference of the end face of the meshed glass 2.
Is glued. The width of the sealing layer 3 corresponds to the width of the mesh glass 2.

FIG. 2 is a schematic perspective view showing an example of a method for producing a net-cored glass having a sealing layer according to the present invention.
The mesh glass 2 is moved with respect to the resin molding extruder 6 by driving the articulated robot 5. At that time, the multi-joint robot 5 is driven so that the resin molding extruder 6 relatively moves along the peripheral edge of the meshed glass 2. Further, the meshed glass 2 is attached to the articulated robot 5 via a glass holder 4 provided on the arm portion of the articulated robot 5.

The resin molding extruder 6 is provided with a die 7 having a discharge port 8 for extruding a resin material at its tip. Then, the discharge port 8 is arranged on the end surface of the meshed glass 2,
The meshed glass 2 is moved with respect to the resin molding extruder 6 such that the die 7 extends along the peripheral edge of the meshed glass 2. Along with this movement, the synthetic resin material is extruded from the discharge port in a predetermined shape, whereby a synthetic resin sealing layer can be formed and integrated on the end surface of the reticulated glass.

FIG. 3 is an enlarged view of a main part of FIG. FIG.
FIG. 3A is an enlarged perspective view showing an example of a die, and FIG.
(B) is a schematic sectional drawing which shows an example which attached the glass with a mesh to a die. The die 7 has a discharge port 8 of a synthetic resin material which is opened in the moving direction of the meshed glass with respect to the die.
Is provided. This discharge port has a substantially quadrangular cross section, and the synthetic resin material extruded as the meshed glass and the die move relative to each other is shaped into a strip having a substantially quadrangular cross section. In this case, it is preferable to match the moving speed of the reticulated glass with respect to the die to the discharging speed of the resin material,
As a result, the molded sealing layer can be uniformly molded to have a predetermined thickness and width.

The synthetic resin material extruded from the discharge port of the die is a thermoplastic resin material, and a thermoplastic resin material which can be easily extruded by heating and melting is used. For example,
Various thermoplastic resins such as vinyl chloride resin, copolymer of vinyl chloride and ethylene, styrene type, olefin type, etc. can be used. Among them, a soft vinyl chloride resin that is easily available and easy to handle is preferably used.

In order to prevent peeling due to a difference in coefficient of thermal expansion from the glass, to prevent cracking of the sealing layer due to impact force from the outside and peeling of the sealing layer from the glass, and to prevent the weight of the glass from adhering to the sealing layer. The hardness of the soft vinyl chloride resin is JIS-K6 in order to prevent crushing and permanent set when an external load is applied.
The hardness of the A type spring type hardness test of 301 (hereinafter simply referred to as Shore A hardness) is particularly preferably 60 to 95.
In order to further increase the adhesive strength between glass and soft vinyl chloride, an adhesive or primer may be applied to the glass surface in advance. As this adhesive or primer, urethane-based, polyamide-based such as thermosetting nylon, epoxy-based, α-cyanoacrylate-based, chloroprene-based adhesive or primer is used.

In the case of adhering glass and soft vinyl chloride, in view of the fact that a certain coating time can be secured between the application of the glass and the molding of the sealing layer, and a certain degree of adhesive strength can be exhibited immediately after molding. Then, it is preferable to use a post-curing type hot melt type urethane adhesive.

The relative movement of the mesh-filled glass and the die may be either movement of the mesh-filled glass itself, movement of the die itself, or movement of both at the same timing, but extruded. The resin material used is a thermoplastic resin material, and it is preferable to fix the die and move the corrugated glass in order to facilitate temperature adjustment in the extruder.

When the meshed glass and the die are moved relative to each other, a position displaced from the corner portion of the meshed glass along the side by a predetermined distance is used as a starting point of molding, and a sealing layer is provided on each side of the meshed glass. A method of molding may be mentioned. Besides,
Starting from one corner of the meshed glass and rotating the meshed glass 90 degrees with respect to the die at the other corners, and the sealing layer goes around the end surface of the meshed glass to the starting point. It is also possible to move the glass and the die relative to each other.

Of the above methods, the latter method is preferable because the entire circumference of the end surface of the sharp mesh glass can be covered with the sealing layer and the molding process can be shortened.

Further, depending on the mesh shape of the mesh-cored glass,
Since the metal wire is not exposed on one side, two sides, or three sides among the end faces, it is not necessary to cover the end faces on these sides.

If the end surface of the reticulated glass is covered with the sealing layer as described above, it is sufficiently effective in preventing the metal wire of the reticulated glass from rusting. There is no problem even if an anticorrosive oil or the like is applied to the end surface of the wire-cored glass in advance before coating.

As for the driving device for the glass with meshes, in addition to the articulated robot, the XY table provided with a rotation mechanism, the conveyer provided with a mechanism for rotating the glass such as a rotary table or an air flow table, or the like is used for the die. Various materials may be used as long as they can be moved relative to each other while keeping the distance to the end face of the mesh glass at a predetermined distance.

FIG. 4 is a schematic sectional view showing another example of mesh glass having a sealing layer in the present invention. FIG.
In the case of the configuration shown in (a), since the sealing layer is provided only on a part of the end face including the metal wire, it contributes to the reduction of the material. FIG.
In the case of the configuration shown in (b), since the peripheral edge portion including the end face is covered with the sealing layer, it is possible to further prevent breakage of the mesh glass. In this case, the discharge port of the die has a substantially U-shaped cross section.

A suitable thickness of the sealing layer as shown in FIGS. 1 and 4 is 1.0 to 2.0 mm. 2.0 mm
If the following is true, even if an external force is applied to the sealing layer, the external dimensions of the corrugated glass including the sealing layer do not change significantly due to the elasticity of the sealing layer. When the thickness is 1.0 mm or more, the dimensional error of the reticulated glass can be absorbed especially when the resin material is extruded from the die to integrally form the sealing layer.

The present invention can be used not only for the meshed glass but also for the end surface treatment of a glass plate such as a laminated glass which requires protection of the end.

The reticulated glass may be used as at least one glass plate of the multi-layer glass. As an example of this, one piece of double glazing is made of net-cored glass, and its outer dimensions (excluding the thickness; for the sake of simplicity, the outer dimensions in the present invention do not consider the thickness of the glass plate) on the other hand. Smaller than the external dimensions of the glass plate of
It is disclosed that the opposite glass plates are sealed with an adhesive and the end faces of the meshed glass are filled and coated with the sealing agent (Act No. 6-16044).

In the above-disclosed double glazing, when the adhesive is sealed, the outside dimension of the mesh-filled glass is smaller than the outside dimension of the other glass plate, so that the adhesive leaks by any means. Therefore, as shown in FIG. 5, the meshed glass according to the present invention is used, and a glass plate having an outer dimension larger than the outer dimension of the meshed glass is used to form a multi-layered glass, so that the meshed layer including the sealing layer is included. The outside dimension of the glass can be handled as the same as the outside dimension of the other glass plate, and the above-mentioned leakage of the adhesive can be prevented.

In FIG. 5, 9 is a glass plate, 2 is a netted glass, 3 is a sealing layer, 10 is a spacer, 11 is a primary sealing material of a low moisture permeable material represented by butyl rubber, etc.
Reference numeral 12 denotes a secondary sealing material typified by a thiochol-based or silicone-based material, which is filled in the void formed by the glass plate 9, the netted glass 2, the sealing layer 3 and the spacer 10, and 13 denotes an intermediate layer. The present invention is not limited to this example. For example, although a metal spacer is used in this example, the spacer is not limited to this and may be made of a resin, and a glass plate is formed so that a plurality of intermediate layers are formed. Also, the number of meshed glasses can be appropriately selected.

As described above, by using the reticulated glass of the present invention as a double glazing, the end face of the reticulated glass is coated in the pre-process of the process for producing the double glazing, thereby manufacturing the double glazing. It is possible to prevent water from entering the gap between the glass layer and the net during the glass cleaning process, prevent rust, and stabilize the quality. In addition, since the sealing layer is made of a thermoplastic resin, it does not stain the line even if it is put into the production line for double glazing, and since both are integrated, the sealing layer has a netted glass edge portion. Can maintain rust prevention performance without peeling off from. The hardness of the sealing layer at this time is Shore A
When the hardness is 60 to 95, there is no fear that the sealing layer will be crushed by the weight of the wire-reinforced glass in the production line for double glazing.

[0033]

Embodiments of the present invention will be described below. The 6.8 mm thick netted glass, which had been pre-cured with post-curing type hot melt urethane adhesive, was adsorbed by the vacuum pad of the glass holder and held by the articulated robot,
The distance between the die discharge port and the end face of the mesh-filled glass is 1.5 m
Then, the meshed glass is moved along the die discharge port at a moving speed of 5 m / min. 60g / from the die outlet
A soft vinyl chloride resin having a Shore A hardness of 90 was melt-extruded at a discharge port temperature of 170 ° C. at a discharge amount of minutes. In this way, a uniform sealing layer having a thickness of 1.5 mm was formed on the entire circumference of the end face of the glass with mesh.

Table 1 shows the anticorrosive performance of the net-cored glass having the sealing layer thus obtained. As a comparative example, a corrugated glass coated with rust preventive oil on its end faces is shown in Comparative Example 1, and a reticulated glass with its end faces exposed is shown in Comparative Example 2.

[0035]

[Table 1]

[0036]

EFFECTS OF THE INVENTION According to the present invention, since the end face of the mesh-cored glass is covered with the sealing layer made of the thermoplastic resin, the contact of moisture with the metal wire is prevented, and the rusting of the metal wire and the metal wire are prevented. It is possible to prevent the allowable stress from decreasing at the edge of the glass layer due to rusting.

In particular, since the thermoplastic resin is used as the sealing layer, it is possible to prevent corner chipping of the glass layer and to prevent injury at the edge of the glass layer, to eliminate stickiness on the surface, and to handle net-cored glass especially. Therefore, the workability can be improved.

Further, by moving the die for extruding the thermoplastic resin material relative to the peripheral portion of the reticulated glass, the end face of the reticulated glass can be easily covered, and the sealing layer and the reticulated glass can be firmly bonded. Can be integrated. Further, the curing time after molding can be shortened by using the thermoplastic resin material.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of mesh glass having a sealing layer according to the present invention.

FIG. 2 is a schematic perspective view showing an example of a method for producing a net-cored glass having a sealing layer according to the present invention.

FIG. 3 is an enlarged view of a main part of FIG.

FIG. 4 is a schematic cross-sectional view showing an example of mesh glass having a sealing layer according to the present invention.

FIG. 5 is a schematic cross-sectional view showing an example of a double-glazing unit using a corrugated glass having a sealing layer according to the present invention.

[Explanation of symbols]

 1: Mesh made of metal wire 2: Glass with mesh 3: Sealing layer 4: Glass holder 5: Articulated robot 6: Extruder 7: Die 8: Discharge port 9: Glass plate 10: Spacer 11: Primary seal 12: Secondary seal

Front page continuation (72) Inventor Masaki Tsujino 1150 Hazawa-machi, Kanagawa-ku, Yokohama, Kanagawa Prefecture Asahi Glass Co., Ltd. Central Research Laboratory (72) Inventor Noriyuki Yoshihara 1150, Hazawa-machi, Kanagawa-ku Yokohama City, Kanagawa Prefecture Asahi Glass Co., Ltd. Central Research Center

Claims (13)

[Claims] 1. A reticulated glass having a sealing layer, which is obtained by adhering a band-shaped sealing layer made of a thermoplastic resin material to an end surface of the reticulated glass. 2. A net-cored glass having a band-shaped sealing layer made of synthetic resin on an end surface and covered with a metal wire on the end surface,
The synthetic resin sealing layer is made of a thermoplastic resin material, is extruded from the resin molding extruder toward the end face of the mesh-cored glass, is molded, and is a sealing layer integrated on the end face. A reticulated glass having a sealing layer, which is characteristic. 3. A reticulated glass having a band-shaped sealing layer made of a synthetic resin on an end surface and covered with a metal wire on the end surface,
The sealing layer made of the synthetic resin is made of a thermoplastic resin material,
Netted with a sealing layer characterized in that the sealing layer is adhered to the entire circumference of the meshed glass by making a round around the end surface of the meshed glass with one corner of the meshed glass as the starting point and the end point. Glass. 4. The sealing layer according to claim 3, wherein the sealing layer is a sealing layer which is extruded from an extruder for resin molding toward the end surface of the reticulated glass and integrated with the end surface. Wired glass with layers. 5. The reticulated glass having a sealing layer according to claim 1, wherein the thermoplastic resin is a soft vinyl chloride resin. 6. The reticulated glass having a sealing layer according to claim 1, wherein the thickness of the sealing layer is 1.0 to 2.0 mm. 7. The reticulated glass having a sealing layer according to claim 1, wherein the width of the sealing layer substantially matches the width of the end face of the reticulated glass. 8. The cross-sectional shape of the discharge port for extruding the resin material of the extruder is substantially quadrilateral.
Reticulated glass having a sealing layer according to any one of to 7. 9. A tip of a resin molding extruder is arranged on the peripheral edge of the meshed glass, and the die includes an end surface of the meshed glass and a die provided at the tip of the resin molding extruder. As shown in the figure, while moving relatively, the synthetic resin material is extruded from the discharge port provided in the die toward the end face of the reticulated glass, and a band-shaped sealing layer is formed and integrated with the end face of the reticulated glass. A method for producing a reticulated glass having a sealing layer, comprising: 10. The method for producing reticulated glass according to claim 9, wherein the extrusion amount of the synthetic resin material is changed in accordance with the relative moving speed of the end face of the reticulated glass and the die. 11. A thermoplastic resin material is used as the synthetic resin material, and the thermoplastic resin material is heated and melted into a fluid state, and extruded from an ejection port of the die toward the end face of the reticulated glass. A method for producing a reticulated glass having a sealing layer according to claim 9 or 10. 12. The method for producing reticulated glass having a sealing layer according to claim 9, wherein the thermoplastic resin is a soft vinyl chloride resin. 13. A plurality of glass plates are opposed to each other via a spacer so as to form an intermediate layer, and at least one of the glass plates is made of meshed glass,
In a multi-layer glass in which the outer dimensions of the reticulated glass are smaller than the outer dimensions of the other glass plate, a sealing layer is provided on an end face of the reticulated glass, and the reticulated glass having the sealing layer Is the meshed glass having the sealing layer according to any one of claims 1 to 8, wherein the meshed glass having the sealing layer and the outer dimension of the other glass plate are substantially the same and having the sealing layer. A multi-layer glass comprising a reticulated glass having a sealing layer obtained by the method for producing a reticulated glass having a sealing layer according to any one of claims 9 to 12.