JP3137503B2 - Method for producing double glazing with frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer glass with a frame which is bonded and bonded to the outer peripheral edge of a multi-layer glass obtained by combining a plurality of glass veneers with an adhesive. It relates to a manufacturing method.

[0002]

2. Description of the Related Art Conventionally, double-glazing is often used for heat insulation, dew condensation prevention, cold radiation prevention near windows, and the like. As shown in FIGS. 9 and 10, for example, this double-layer glass has two glass veneers 1, 1 arranged substantially in parallel with a predetermined gap 2 therebetween. A desiccant-containing spacer 3 is provided between the glass veneers 1 and 1 along the outer peripheral edge portion. The sealant 4 is filled outside the desiccant-containing spacer 3.
As the sealing material 4, butyl sealant, polysulfide silicon, or the like is used.

When assembling the double-glazed glass G having such a structure, first, an outer peripheral edge of the double-glazed glass G is
A gasket (glazing channel) 5 that forms a frame having a substantially U-shaped cross section is fitted therein, and the multi-layer glass G with the frame is inserted into the concave groove 6a of the main body aluminum sash 6 and mounted. . As the frame, that is, the gasket 5, a vinyl chloride resin (PVC) or CR rubber is used. In the example shown in FIG. 11, the side surface of the double-glazed glass G mounted on the setting block 7 is sealed with a gasket (bead channel) 8.

[0004] As a method for producing a double-glazed glass with a frame having such a structure, for example, there is a method described in Japanese Patent Application Laid-Open No. 2-261186. In the manufacturing method according to the publication, a frame extruded separately from the double-glazed glass is adhered and bonded while being pressed with a roller to the outer peripheral edge of the double-glazed glass to which the adhesive has been applied, or The frame in the softened state immediately after being extruded into the cross-sectional shape described above is pressed against the outer peripheral edge of the multilayer glass while being pressed by a roller.

[0005]

However, in the above-mentioned conventional method of manufacturing a double-glazed glass with a frame, the shape of the frame may be lost due to the pressing force of the roller, and the resin in the softened state may not be sufficiently bonded. Does not have the heat of reaction to obtain strength. That is, in order to bond the frame with sufficient strength, the pressure and temperature at the time of bonding are insufficient, and the bonding strength of the frame is insufficient, and the integration of the multilayer glass and the frame is improved. Not done. As a result, a gap is likely to be formed between the frame and the surface of the multilayer glass, and the sealing property is reduced. If the sealing property of the frame is insufficient, the moisture that has entered through the gap between the frame and the double-glazed glass reaches the sealing material (see reference numeral 4 in the figure), and thereby the frame itself and the frame and the double-glazed glass. The erosion of the adhesively bonded portion may progress, and the life of the framed double-glazed glass may be extremely shortened.

[0006] In order to solve such a problem of the sealing property between the frame and the double glass, a double glass with a frame having a structure as shown in FIG. 12 has also been developed. In this device, a backup material 11, 1 is placed on a setting block 10 previously fixed in a concave groove of a main body aluminum sash 6.
The double-layer glass G is temporarily installed through the first through-hole 1, and the space inside the concave groove of the main body aluminum sash 6 is filled with the elastic sealant 12 made of silicon or polysulfide.
According to the double-glazed glass with a frame having such a structure, good sealing properties can be obtained, but it takes a long time to train (harden) the elastic sealant 12, and the number of construction steps is extremely large. There's a problem.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and has been developed in consideration of the above-mentioned conventional problems. It is intended to provide a manufacturing method.

[0008]

In order to solve the above-mentioned conventional problems, a first means according to the present invention is a multi-layer structure comprising a plurality of glass veneers arranged substantially in parallel with a predetermined gap. A frame in which an adhesive is applied to an outer peripheral portion of the glass to bond the frame, and the frame is extruded in a predetermined cross-sectional shape from an extrusion opening of a die device. In the method for producing a body-attached double-glazed glass, a first extrusion-forming step of bonding and joining together while extruding a frame body at each of a pair of opposing outer peripheral edges of the double-glazed glass,
A second extrusion molding step of extruding and forming a frame on each of the other pair of outer peripheral edges of the double-glazed glass and bonding and integrating the frames with each other. A step of disposing a pair of die devices, respectively, corresponding to each of a pair of outer peripheral edges facing each other; and A step of inserting a part of the peripheral portion, respectively, forming a molding space having a cross-sectional shape corresponding to the frame body between each peripheral edge portion of the multilayer glass and the extrusion molding port,
While continuously moving the multilayer glass at a constant speed in a linear direction along the outer edge of the multilayer glass, an adhesive is applied to each of a pair of opposed outer edges of the multilayer glass. Coating and extruding a frame into each of the adhesive application areas through the molding space of each of the die devices, thereby bonding and joining them together to integrate them.

The second means according to the present invention is characterized in that, in the first means, a thermosetting adhesive is used as an adhesive and a thermoplastic resin material is used as a material for extruding the frame. I have.

Further, a third means according to the present invention is the first means, wherein after the first extruding step is completed, the position of the double glazing is changed by 90 ° to perform the second extruding step. have.

[0011]

According to the first means, the frame material is extruded in a molten state through the molding space formed by inserting the outer peripheral edge of the double-glazing into the extrusion molding opening of the die device. At the same time, the double-glazed glass and the die device are relatively moved along the outer peripheral edge of the double-glazed glass, so that the frames are respectively integrated with the pair of outer peripheral edges of the double-glazed glass, and are bonded and bonded. Is done. The frame is similarly integrated and bonded to the other pair of outer peripheral edges, and the frame is attached to the entire periphery of the double-glazed glass. Since the bonding of the frame at this time is performed under high temperature and high pressure by extrusion, a large bonding strength is obtained by sufficient reaction heat and reaction pressure. Therefore, the production of the double-glazed glass with the frame is easily and favorably performed.

In particular, according to the second means, a combination of a thermosetting adhesive and a thermoplastic resin material can provide a better bonding strength.

Further, as in the third means, if the position of the double glazing is changed by 90 ° and the first extrusion molding step and the first extrusion molding step are continued, the molding of the frame can be performed efficiently. Done in

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention for producing a double-glazed glass with a frame having the structure shown in FIGS. 9 and 10 will be described below. Prior to this, the production method of the present invention will be described. An example of an apparatus for performing this will be described with reference to the drawings. First, in the example of the apparatus shown in FIGS.
1, a heating unit 22, an extruding unit 23, and a separating unit 24 are arranged in this order, and a double-layer glass G having the above-described structure is placed on a plurality of belt conveyors 25 provided along the arrangement direction of these units. (See FIGS. 9 and 10) are continuously placed. Each of these belt conveyors 25 is a multi-layer glass G
Is disposed so as to receive a substantially central portion in the width direction of the double-glazed glass G by the conveying force of the belt conveyor 25.
Is continuously sent in the direction of the arrow shown in the figure.

Positioning rollers 26 are arranged at appropriate intervals in the middle of the above-mentioned multilayer glass G in the feeding direction. Each of these positioning rollers 26 is formed, for example, in a thread winding shape as shown in FIG.
Are arranged so as to sandwich a pair of opposite side edges in the width direction. And, by the position regulating force of each of these positioning rollers 26 in the width direction and the height direction,
The multi-layer glass G is configured to be conveyed while being constantly maintained at a fixed width direction position and a predetermined height direction position.

The adhesive application section 21 has a double-layer glass G
A pair of adhesive nozzles 28, 28 are arranged at positions corresponding to a pair of both side edges facing each other in the width direction so as to face from above. An adhesive is supplied to each of the adhesive nozzles 28 from an adhesive supply source (not shown) so that the adhesive is discharged to both side edges in the width direction of the multilayer glass G through the adhesive nozzles 28. Is configured. The adhesive 29 discharged from each of the adhesive nozzles 28
Is applied so as to form a band of constant width on a pair of both side edges facing each other in the width direction of the double-glazed glass G.

As the adhesive 29 in this embodiment, a urethane-based or epoxy-modified nylon-based thermosetting adhesive is used. An adhesive state can be obtained. Before applying the adhesive 29,
If necessary, a primer treatment with a silane coupling agent is performed on the surface of the double-glazed glass G, and the adhesive 29 is applied to the primer-treated portion.

Further, in the heating section 22, for example, a far-infrared heater 31 is disposed so as to face the adhesive application area, and the far-infrared heater 31 raises the surface of the multilayer glass G by 50 ° or more. Is preheated. This is for accelerating the curing reaction of the adhesive 29 described above. The far-infrared heater 31 is disposed so as to heat the entire multi-layer glass G.

Furthermore, a pair of die devices 32, 32 are arranged in the extruding portion 23 so as to correspond to a pair of opposite side portions of the double-glazed glass G. 4 and 5 showing these die units 32, an extruder 32 is shown.
A die body 323 is attached to the front end of the die 1 via a joint pipe 322 for supplying an extruded resin material as a frame material. An extruded opening 323b having an opening shape corresponding to the outer shape of the cross section of the frame 5 (see FIGS. 9 and 10) is formed in the base 323a of the die body 323. An extrusion passage 323c having an opening shape slightly larger than the opening shape of the extrusion molding port 323b is formed behind the extrusion molding port 323b of the die 323a.

The extruding opening 323b and the extruding passage 323c are opened laterally on the side surfaces of the extruding opening 323b and the extruding passage 323c so that a part of the outer peripheral edge of the double-glazed glass G can be inserted. A side opening 323d is formed. The frame 5 is formed by the outer peripheral edge of the multilayer glass G inserted into the extrusion molding port 323b from the side opening 323d and the peripheral wall surface of the extrusion molding port 323b.
Is formed, and the extruded material is extruded as the frame 5 through the molding space of the extrusion molding port 323b. In this extrusion, the resin temperature is set to 150 ° or more, and the extrusion pressure in the die is set to 20 kg / cm ² or more.

As the resin material used for the extrusion,
From the viewpoints of elasticity, economy, and self-digestibility, a chlorine-based thermoplastic wood material represented by PVC is preferable. Furthermore, from the original application where the double-glazed glass is used, a polymer having a high degree of polymerization having excellent cold resistance or a polymer having a partially crosslinked body and having an excellent compressive strain and a low brittle temperature (DuPont Chemical Company, trade name: Alcline) Etc.) are preferred.

The outer peripheral edge of the above-mentioned double-glazed glass G and the die unit 3
In the present embodiment, the double-layer glass G is configured to be relatively moved by the above-described belt transport mechanism with respect to the fixed die unit 32. At this time, when performing relative movement between the two, positioning is performed using a reference double glazing having an accurate shape and dimensions. That is, the die device 3
The movement position data by the reference double glazing accurately aligned so as to have a certain relationship with 2 is taught and stored in a control device (not shown), and based on a position control signal from the control device. The position of the positioning roller 26 is adjusted, whereby the double-layer glass G is transported with high accuracy.

Further, the separating section 24 includes a double-layer glass G
A rotary cutting blade 33 for cutting the frame 5 extruded to a predetermined length at a predetermined timing is disposed on a side edge portion of the frame 5. The rotary cutting blade 33 has a cutting function by rotation, and is configured to be moved in synchronization with the movement of the double-glazed glass G described above.

Next, a manufacturing method according to one embodiment of the present invention will be described together with the operation of the manufacturing apparatus configured as described above. The double glazing G prepared in a state without a frame is subjected to a primer treatment at an outer peripheral edge thereof in advance, and is placed on the belt conveyor 25 of the manufacturing apparatus, and the first extrusion molding process is performed. You.

That is, first, in the adhesive application section 21,
Adhesives 29, 29 are applied in a strip shape over a fixed width to a pair of opposite side edges in the width direction of the multilayer glass G. Next, in the heating unit 22, the surface of the multilayer glass G is preheated by the far-infrared heater 31.

The heated double-glazed glass G has a pair of opposite side edges at the front end in the feed direction, and the die unit 3
The extrusion opening 323 is formed from each of the side openings 323d.
b is inserted by a certain amount. Then, as described above, the double-glazed glass G is inserted into the extrusion molding port 323b,
A molding space corresponding to the cross-sectional shape of the frame body 5 is formed between the outer peripheral edge of the multilayer glass G and the inner peripheral wall of the extrusion molding port 323b. Next, when this molding space is formed, the die device 3
The frame material is supplied in a molten state to the second material feeding path, and the frame material is extruded from the extrusion molding port 323b through the molding space.

When the frame material is extruded from the extrusion molding port 323b, the multilayer glass G is always conveyed at a constant controlled speed by the conveying force of the belt conveyor 25, and the positioning rollers 26 The outer peripheral edge of the multilayer glass G is moved along the controlled position. As a result, the frame 5 extends along the outer peripheral edge of the multilayer glass G.
Is accurately extruded.

As described above, in each of the die units 32, the frame material is extruded in a molten state through the molding space formed by inserting the outer peripheral edge of the multilayer glass G into the extrusion molding opening 323b of the die unit 32. Along with
As shown in FIG. 6, a frame body is formed on the outer peripheral edge of the multilayer glass G by moving the multilayer glass G and the die device 32 relatively along the outer peripheral edge of the multilayer glass. 5 are integrally bonded and bonded. At this time, since the bonding of the frame 5 is performed at a high temperature and a high pressure simultaneously with the extrusion, a large bonding strength is obtained by a sufficient reaction heat and reaction pressure, and therefore, the double-glazed glass with the frame can be easily and favorably manufactured. It is supposed to be.

Further, in the extrusion of the frame material, since the aligned double-glazed glass G and the die unit 32 are relatively moved so as to have a fixed relationship, the outer dimensions of the double-glazed glass G are reduced. Even if there is "variation", it is molded so that the outer dimensions of the framed double-layer glass have a constant outer dimension.

After the frames 5, 5 are extruded along the pair of opposite side edges of the multilayer glass G in the extruding section 23, the multilayer glass G is sent to the separating section 24, Therefore, the cutting is performed so that the glass surface at the end in the longitudinal direction is exposed as shown in FIG. The width t ₁ of the glass exposed portion 5 a by this cutting is set substantially equal to the width of the frame 5. This is because the frame 5 is inserted into the extrusion molding port 323b of the die device 32 in order to perform the second extrusion molding process on the other pair of outer peripheral edges of the multilayer glass G.
This is for forming a molding space corresponding to.

The double-glazed glass G after the cutting is rotated by 90 ° on a horizontal plane to change its position, and then changed its orientation so as to execute the second extrusion molding step on the other pair of outer peripheral edges. Set again. Then, the above-described extrusion process is started again from the glass exposed portion 5a,
As a result, the frame 5 is bonded and bonded to the entire peripheral edge of the double-glazed glass G. At this time, at the four corners of the double-glazed glass G, the frame 5 from the first extrusion molding step and the frame 5 from the second extrusion molding step are heat-fused, and the two frame bodies 5, 5 The two are completely integrated, and a good sealing property is obtained.

It should be noted Finally, as shown in Figure 8, the non-forming site 5b of the frame 5 is provided over the thickness width t ₂ for forming the extrusion port 323b of the die assembly 32 However, it is desirable to fill the non-forming portion 5b of the frame 5 with the auxiliary plate 5c.

[0033]

As described above, according to the present invention, a frame extruded at a high temperature and a high pressure from an extrusion molding opening of a die provided in a die apparatus is directly extruded to an outer peripheral edge portion of a multilayer glass. By molding, the frame is integrated with each pair of outer peripheral edges of the double-glazed glass, so that sufficient heat of reaction and reaction pressure can be used to form the frame with high adhesive strength and efficiently. It can be adhesively bonded to the layered glass, and the framed double-layered glass can be easily and favorably manufactured.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an example of an apparatus for carrying out a method for producing a framed double-glazed glass according to the present invention.

FIG. 2 is an explanatory plan view of the example of the apparatus shown in FIG. 1;

FIG. 3 is an enlarged front view showing a positioning roller used in the example of the apparatus shown in FIGS. 1 and 2;

FIG. 4 is an external perspective explanatory view showing a die device.

5 is an exploded perspective view of the die device shown in FIG.

FIG. 6 is an explanatory cross-sectional view along IV-IV in FIG. 4;

FIG. 7 is an explanatory view showing a cutting state after the frame is extruded.

FIG. 8 is an explanatory view showing a state after the frame is extruded all around.

FIG. 9 is an explanatory cross-sectional view showing an assembled state of the double-glazing unit with a frame.

10 is an exploded cross-sectional view showing an assembled state of the double-glazed glass with frame shown in FIG. 9;

FIG. 11 is a cross-sectional explanatory view showing an assembled state of a framed double-glazing unit having another structure.

FIG. 12 is a cross-sectional explanatory view showing an assembled state of a framed double-glazed glass having still another structure.

[Explanation of symbols]

 G Double-glazed glass 5 Frame 21 Adhesive joint 23 Extruder 32 Die unit 323b Extrusion opening 323d Side opening

Claims (3)

(57) [Claims] 1. An adhesive is applied to the outer peripheral edge of a multi-layered glass composed of a plurality of single glass sheets disposed substantially in parallel with a predetermined gap therebetween, and the frame is bonded and joined. In the method for manufacturing a framed double-glazed glass in which the frame is extruded in a predetermined cross-sectional shape from an extrusion opening of a die device, a pair of outer peripheral edges of the double-glazed glass facing each other are formed. A first extrusion forming step of bonding and integrating the frames while extruding the frames, and bonding and bonding the frames while extruding the frames to each of the other pair of outer peripheral edges of the double glazing; A first extrusion molding step and a second extrusion molding step, wherein the first extrusion molding step and the second extrusion molding step correspond to each of a pair of opposed outer peripheral edges of the double-glazed glass, and a pair of die devices. In each of these die devices. From the side opening of the extrusion port, a part of each outer peripheral edge of the double-glazed glass is inserted, and a cross section corresponding to a frame between each outer peripheral edge of the double-glazed glass and the extrusion port. Forming a forming space of a shape, and while continuously moving the double-glazed glass at a constant speed in a linear direction along an outer peripheral edge of the double-glazed glass, a pair of opposed double-glazed glasses. Applying an adhesive to each of the outer peripheral edges of each of the above, and extruding a frame body through the molding space of each of the die devices to each of the adhesive application regions, thereby bonding and integrating the frames. A method for producing a double-glazed glass with a frame, characterized in that: 2. The method according to claim 1, wherein a thermosetting adhesive is used as the adhesive, and a thermoplastic resin material is used as the extruded material of the frame. For producing a double-glazed glass with a frame. 3. The method for producing a double-glazed glass with a frame according to claim 1, wherein the position of the double-glazed glass is set to 90 after the completion of the first extrusion molding step.
A method for producing a double-glazed glass with a frame, wherein the second extrusion molding step is performed by changing the rotation.