Preparation technology of louvered insulating glass and long-term sealed louvered insulating glass

Abstract

The present invention provides a process for preparing louvered insulating glass, which utilizes the characteristics of a new material 4SG, ingeniously combines the use of a positioning glue with structural bonding strength, and improves the operating procedures, so that the long-lasting sealed louvered insulating glass using the process for preparing louvered insulating glass of the present invention can achieve long-term use of products of larger sizes compared to current built-in louvered insulating glass, and has better bonding strength and supporting performance, long-lasting sealing, heat insulation, and sound insulation effects, and a simpler production process.

Description

Technical Field

[0001] The invention relates to the field of coated glass production, and in particular to a preparation process of louvered hollow glass and a long-lasting sealed hollow glass using the louvered hollow glass. Background Art

[0002] The current built-in louver hollow glass has the following defects in the application in buildings: 1. The louver frame and corresponding accessories inside it have a certain weight, especially the louver hollow glass with a large area. The traditional built-in louver hollow glass is sealed only by butyl glue. During the long-term use of the louver system, the sealant is subjected to long-term reciprocating shear force, and the shear resistance of butyl glue is limited, and it does not have the structural bonding strength to maintain. Over time, the sealing system capacity of the hollow glass is weakened, especially the airtightness is weakened; 2. The built-in louver hollow glass is used in buildings and is subjected to high and low temperatures for a long time. The inert gas inside is repeatedly heated and expanded or pre-cooled and contracted, which weakens the sealing. No matter which of the above defects causes the airtightness of the built-in hollow glass to be weakened, gas exchange will occur with the outside world, causing the inert gas to be lost, thereby weakening its heat insulation, noise prevention and other functions, reducing energy-saving effects, and shortening service life. In response to the above defects of built-in hollow louver glass, our company has developed a built-in sunshade hollow glass that can be sealed for a long time. Summary of the invention

[0003] The present invention aims to solve the problem that the existing technology of built-in louvered hollow glass cannot achieve long-term sealing, and proposes a louvered hollow glass preparation process and a long-term sealed hollow glass using the louvered hollow glass.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A process for preparing louvered insulating glass comprises the following steps:

[0006] S1. Glass processing: prepare N pieces of glass according to demand, where N ≥ 2, and cut the glass into appropriate sizes according to production requirements;

[0007] S2, applying glue to the first glass: Take one of the glass sheets as the first glass, and apply a circle of 4SG thermoplastic spacer sealant on the designated position around the inner side of the first glass;

[0008] S3, blind frame gluing: a circle of positioning glue with structural bonding strength is pasted on the periphery of one side of the blind frame;

[0009] S4, installing the louver frame; placing the louver frame inside a circle of 4SG thermoplastic spacer sealant on the first glass, applying pressure to the louver frame, so that the side of the louver frame adhered with the positioning glue having structural bonding strength is adhered and fixed on the first glass, and during the placement and bonding process, the louver frame and the 4SG thermoplastic spacer sealant on the first glass do not contact each other;

[0010] S5, vertical lamination; another piece of glass is taken as the second glass, and the second glass and the first glass bonded with the louver frame are respectively placed in the vertical lamination machine for vertical lamination. During the vertical lamination, the first glass and the second glass are precisely positioned to the inert gas filling position of the vertical lamination machine to stay and complete automatic filling; after the lamination is completed, the first glass and the second glass are tightly connected by a circle of 4SG thermoplastic spacer sealant, and the louver frame is located in the closed space surrounded by the first glass, the second glass and the 4SG thermoplastic spacer sealant;

[0011] S6. After the production of the louvered insulating glass is completed, the finished product is moved from the vertical assembly machine to a designated location for storage.

[0012] Preferably, in step S5, after the lamination is completed, the thickness of the gap between the first glass and the second glass is A mm, then in step S2, the thickness of the 4SG thermoplastic spacer sealant punched on the first glass is (1+10%)*A mm, and the redundant thickness of the 4SG thermoplastic spacer sealant is deformed and escaped to the side during lamination.

[0013] Preferably, the thickness of the louver frame is less than A millimeters.

[0014] Preferably, the thickness of the louver frame is equal to A millimeters, and a circle of positioning glue with structural bonding strength is adhered to the periphery of the front and back surfaces of the louver frame and is respectively bonded and fixed to the first glass and the second glass.

[0015] Preferably, when the louvered insulating glass is a triple-glass double-cavity structure, the following steps are further included after S6:

[0016] S7, applying glue to the second glass: applying a circle of 4SG thermoplastic spacer sealant at a designated position around the outer surface of the second glass;

[0017] S8, installing the magnetic bridge fittings; pasting a positioning glue with structural bonding strength on the magnetic bridge cover plate, placing the magnetic bridge fittings inside a circle of 4SG thermoplastic spacer sealant on the second glass, and applying pressure to fix the magnetic bridge fittings on the second glass through the positioning glue with structural bonding strength. During the placement and bonding process, the magnetic bridge fittings and the 4SG thermoplastic spacer sealant on the first glass do not contact each other;

[0018] S9, vertical lamination; taking another piece of glass as the third glass, using a vertical lamination machine to make the third glass squeeze a circle of 4SG thermoplastic spacer sealant on the second glass and complete the lamination;

[0019] S10, the production of the three-glass double-cavity structured louvered insulating glass is completed, and the finished product is moved from the vertical assembly machine to the designated location for storage.

[0020] Preferably, in step S9, the thickness of the gap between the second glass and the third glass after the lamination is completed is B mm, then in step S7, the thickness of the 4SG thermoplastic spacer sealant punched on the second glass is (1+10%)*B mm, and the redundant thickness of the 4SG thermoplastic spacer sealant is deformed and escaped to the side during lamination.

[0021] Preferably, the second glass is replaced by the first glass.

[0022] A long-lasting sealed louver insulating glass is prepared by using any of the above-mentioned louver insulating glass preparation processes.

[0023] Preferably, an inert gas is filled between the first glass and the second glass.

[0024] Preferably, an inert gas is filled between the second glass and the third glass or between the first glass and the third glass.

[0025] The present invention eliminates all structures such as spacers, partitions, and butyl sealants in existing built-in louver insulating glass, and uses positioning glue with structural bonding strength + 4SG thermoplastic spacing sealant to achieve all bonding and sealing effects. Glass is bonded to each other by 4SG thermoplastic spacing sealant to form a closed cavity, and the louver frame is located in the closed cavity. Before vertical assembly, it is first directly bonded and fixed to the glass by positioning glue with structural bonding strength, and the louver frame and 4SG do not contact each other.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The preparation process has fewer steps and is simpler than the current process. Whether it is the bonding of positioning glue with structural bonding strength or the 4SG gluing operation, it is more convenient.

[0028] 2. For built-in blinds and insulating glass using this process, the blind frame is directly bonded to the glass through a positioning glue with structural bonding strength, so that the blind frame and the glass are structurally bonded. The bonding force can effectively support the weight of the blind frame and the force of the blind handle sliding up and down for a long time, avoiding the blind frame after long-term use, especially the blind frame of large-sized built-in blinds and insulating glass moving down and damaging the sealant, resulting in the destruction of air tightness. It can effectively extend the heat insulation and sound insulation effects of the blinds and extend their service life. In addition, a circle of seamless sealing is performed using 4SG thermoplastic spacer sealant to adapt to the deformation of the glass during hot and cold changes and deform accordingly. The long-term sealing effect is far superior to existing products.

[0029] 3. In the preparation process of the present invention, the louver frame is first bonded to the glass, and then vertically assembled, and the louver frame is prevented from contacting the 4SG throughout the process, which can effectively prevent the 4SG thermoplastic spacer sealant from being destroyed by the louver frame, resulting in gaps in certain parts after assembly, and effectively ensure the long-term airtightness of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a flow chart of the preparation process of louvered insulating glass. DETAILED DESCRIPTION

[0032] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] Please refer to Figure 1 , a process for preparing louvered insulating glass, comprising the following steps:

[0035] S1. Glass processing: prepare N pieces of glass according to demand, where N ≥ 2, and cut the glass into appropriate sizes according to production requirements;

[0036] S2, glueing the first glass: Take one of the glass pieces as the first glass, and apply a circle of 4SG thermoplastic spacer sealant on the designated position around the inner side of the first glass;

[0037] S3, blind frame gluing: a circle of positioning glue with structural bonding strength is pasted on the periphery of one side of the blind frame;

[0038] S4, installing the louver frame; placing the louver frame inside a circle of 4SG thermoplastic spacer sealant on the first glass, applying pressure to the louver frame, so that the side of the louver frame with the positioning glue having structural bonding strength is adhered and fixed to the first glass, and during the placement and bonding process, the louver frame and the 4SG thermoplastic spacer sealant on the first glass do not contact each other;

[0039] S5, vertical lamination; another piece of glass is taken as the second glass, and the second glass and the first glass bonded with the louver frame are respectively placed in the vertical lamination machine for vertical lamination. During the vertical lamination, the first glass and the second glass are accurately positioned to the inert gas filling position of the vertical lamination machine to stay and complete automatic filling; after the lamination is completed, the first glass and the second glass are tightly connected by a circle of 4SG thermoplastic spacer sealant, and the louver frame is located in the closed space surrounded by the first glass, the second glass and the 4SG thermoplastic spacer sealant;

[0040] S6. After the production of the louvered insulating glass is completed, the finished product is moved from the vertical assembly machine to a designated location for storage.

[0041] In the above preparation process, in the order of steps S2-S5, first apply a circle of 4SG thermoplastic spacer sealant on the first glass, then glue and fix the louver frame on the first glass, and then perform vertical assembly; it should be noted that the louver frame should not be glued and fixed on the first glass first, and then a circle of 4SG thermoplastic spacer sealant should be applied on the periphery of the louver frame on the first glass. The reasons for the above step sequence include: first, the 4SG equipment is limited in coating and gluing, and 4SG can only be coated on a flat surface. Therefore, when the louver frame is first fixed and glued on the first glass, there are other components on the plane, and there are obstacles to 4SG coating; second, during production and preparation, first use the 4SG equipment to apply a circle of 4SG at a specified position on the first glass to achieve precise positioning function, so as to ensure that all subsequent components can be accurately positioned according to the process.

[0042] The positioning tape with structural bonding strength used in the present invention can be made of VHB glue, that is, polyacrylate double-sided foam tape, which is very convenient to use. After cutting the required length, one side is bonded to the periphery of the front or back side of the louver frame, and the other side is bonded to the first glass, thereby achieving bonding and fixing between the louver frame and the first glass. First, the positioning glue with structural bonding strength enables structural bonding between the louver frame and the first glass, and its bonding force is sufficient to support the deadweight of the large louver frame and the force generated when the operating handle slides up and down; secondly, the positioning tape with structural bonding strength has excellent aging resistance, and can maintain excellent bonding strength in long-term ultraviolet rays, high temperature, humidity, dryness, and extremely cold environments. Therefore, the built-in louver hollow glass produced by the preparation process of the present invention will not have its louver frame loosened or moved after long-term use, and will not squeeze and damage the structure of the 4SG sealing strip. The airtightness of the hollow glass is maintained for a long time. Compared with the built-in louver hollow glass currently on the market, it has a larger size and can maintain high airtightness and excellent heat insulation and sound insulation effects for a longer period of time, thereby reducing the energy consumption of air conditioning use and effectively extending the service life.

[0043] The present invention uses 4SG to form a circle of sealant around the first glass and the second glass. As a new material in the industry, 4SG can be used as an ultra-mechanical sealing spacer for insulating glass. It has the elasticity of a flexible spacer and can deform with the deformation of the glass caused by the volume change of the internal inert gas in hot and cold environments, always maintaining good airtightness. At the same time, it also solves the instability of the pressure and strength of the flexible spacer caused by the oversized glass, and has good supporting performance, long-lasting strength and sealing.

[0044] The present invention applies 4SG material to insulating glass with built-in louvers, and only uses 4SG as a spacer sealing strip to seal and support the glass. However, when 4SG is applied to the production process of insulating glass, it is in an unsolidified state for a period of time just after being extruded onto the glass. Therefore, the glass needs to be laid flat during extrusion. The current insulating glass with built-in louvers adopts a vertical lamination process, which requires the glass to be laid vertically for lamination. Based on this, in the preparation process of the present invention, the strong bonding effect and supporting force of the positioning tape with structural bonding strength and the convenient and fast bonding operation, as well as the characteristics of being sticky and ready to use are utilized. After the 4SG is glued and before the glass is erected for vertical joining, the louver frame is first fixed on the first glass. Firstly, the louver frame can be fixed inside the space surrounded by the 4SG when the 4SG is not solidified. When the glass is erected for vertical joining, the position of the louver frame will not move at all, and the vertical joining process will not be affected, thereby improving the product quality of the hollow glass with built-in louvers. Secondly, when placing the louver frame, it is necessary to pay attention to the fact that the louver frame and the 4SG thermoplastic spacer sealant on the first glass do not contact each other during the placement and bonding process, so as to ensure that the louver frame will not damage the shape and structure of the unsolidified 4SG, and further effectively avoid the situation in which gaps appear in some parts of the 4SG thermoplastic spacer sealant in a circle after joining due to insufficient thickness, thereby affecting the air tightness of the product.

[0045] Preferably, in step S5, after the lamination is completed, the gap thickness between the first glass and the second glass is A mm, then in step S2, the thickness of the 4SG thermoplastic spacer sealant applied on the first glass is (1+10%)*A mm, and the redundant thickness of the 4SG thermoplastic spacer sealant is deformed and escaped to the side during lamination. The purpose of this operation is to leave a redundant amount of 4SG, to ensure that the excess amount of 4SG is squeezed and deformed by the second glass sheet during lamination, thereby ensuring that the 4SG and the second glass sheet are fully bonded and have no gap.

[0046] In one embodiment, the thickness of the louver frame is less than A millimeters.

[0047] In another embodiment, the thickness of the louver frame is equal to A millimeters, and a circle of positioning glue with structural bonding strength is adhered to the front and back sides of the louver frame and is respectively bonded and fixed to the first glass and the second glass, so that the fixing effect is better and the bonding is more firm.

[0048] When the shutter insulating glass is a triple-glass double-cavity structure, the following steps are also included after S6:

[0049] S7, glue the second glass; apply a circle of 4SG thermoplastic spacer sealant on the designated position of the outer surface of the second glass;

[0050] S8. Install the magnetic bridge fittings; paste a positioning glue with structural bonding strength on the magnetic bridge cover plate, place the magnetic bridge fittings inside a circle of 4SG thermoplastic spacer sealant on the second glass, and apply pressure to fix the magnetic bridge fittings on the second glass through the positioning glue with structural bonding strength. During the placement and bonding process, the magnetic bridge fittings and the 4SG thermoplastic spacer sealant on the first glass do not contact each other;

[0051] S9, vertical lamination; another piece of glass is taken as the third glass, and a vertical lamination machine is used to make the third glass squeeze a circle of 4SG thermoplastic spacer sealant on the second glass to complete the lamination;

[0052] S10, the production of the three-glass double-cavity structured louvered insulating glass is completed, and the finished product is moved from the vertical assembly machine to the designated location for storage.

[0053] Furthermore, in step S9, the gap thickness between the second glass and the third glass after the lamination is B mm, and in step S7, the thickness of the 4SG thermoplastic spacer sealant applied on the second glass is (1+10%)*B mm, and the redundant thickness of the 4SG thermoplastic spacer sealant is deformed and escaped to the side during lamination. The purpose of this operation is also to leave a redundant amount of 4SG, to ensure that the excess amount of 4SG is squeezed and deformed by the third glass sheet during lamination, thereby ensuring that the 4SG and the third glass sheet are fully bonded and have no gaps.

[0054] In a preferred embodiment, the second glass can be replaced by the first glass, that is, the single-chamber louver insulating glass can be further produced into a triple-glass double-chamber internal louver insulating glass, and further processing can be performed on any side of the original single-chamber louver insulating glass according to demand.

[0055] A long-lasting sealed louvered insulating glass is prepared by using any of the above-mentioned louvered insulating glass preparation processes. The built-in louvered insulating glass produced by the above-mentioned preparation process can be a single-chamber structure or a three-glass double-chamber structure.

[0056] The single-chamber structure long-term sealed shutter insulating glass comprises a first glass, a second glass, and a shutter frame; wherein the periphery between the first glass and the second glass is bonded and supported by 4SG, and a closed cavity is formed in the middle; the shutter frame is arranged in the closed cavity between the first glass and the second glass, and is bonded to the first glass or the second glass by a positioning glue with structural bonding strength, or the front and back sides of the shutter frame are both affixed with positioning glue with structural bonding strength and are respectively bonded to the first glass and the second glass, and there is no acting force between the shutter frame and the 4SG. Preferably, an inert gas is filled between the first glass and the second glass.

[0057] The three-glass double-chamber long-term sealed insulating glass includes a first glass, a second glass, a third glass, a shutter frame, and a magnetic bridge fitting; wherein the periphery between the first glass and the second glass is bonded and supported by 4SG, a closed cavity is formed in the middle, and a shutter frame is arranged inside the cavity, and the structure is the same as the long-term sealed shutter insulating glass with a single-chamber structure mentioned above. The periphery between the first glass and the third glass or between the second glass and the third glass is bonded and supported by 4SG, a closed cavity is formed in the middle, and a magnetic bridge fitting is installed at a designated position inside the cavity, wherein the magnetic bridge cover is bonded to the glass by a positioning glue with structural bonding strength, and there is no force between the magnetic bridge fitting and the 4SG. Preferably, an inert gas is filled between the second glass and the third glass or between the first glass and the third glass.

[0058] In summary, the louver insulating glass preparation process of the present invention utilizes the characteristics of the new material 4SG, cleverly combines the use of positioning glue with structural bonding strength and improves the operating procedures, so that the long-lasting sealed louver insulating glass using the louver insulating glass preparation process of the present invention can achieve longer-term use of larger-sized products compared to the current built-in louver insulating glass, and has better adhesion and supporting performance, long-term sealing, heat insulation and sound insulation effects, and a simpler production process.

[0059] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A process for preparing louvered insulating glass, characterized in that: The following steps are involved: S1. Glass processing: prepare N pieces of glass according to demand, where N ≥ 2, and cut the glass into appropriate sizes according to production requirements; S2, applying glue to the first glass: take one of the glasses as the first glass, apply a circle of 4SG thermoplastic spacer sealant on the designated position of the inner side periphery of the first glass, and lay the first glass flat when the 4SG thermoplastic spacer sealant is squeezed out; S3, gluing the louver frame; gluing a circle of positioning glue with structural bonding strength on the periphery of one side of the louver frame; cutting the positioning glue to a required length, and gluing it to the periphery of the front or back side of the louver frame; S4, installing the louver frame; when the 4SG thermoplastic spacer sealant is not solidified, placing the louver frame inside a circle of 4SG thermoplastic spacer sealant on the first glass, applying pressure to the louver frame, so that the side of the louver frame adhered with the positioning glue having structural bonding strength is adhered and fixed on the first glass, and during the placement and bonding process, the louver frame and the 4SG thermoplastic spacer sealant on the first glass do not contact each other; S5, vertical lamination; another piece of glass is taken as the second glass, and the second glass and the first glass bonded with the louver frame are respectively placed in the vertical lamination machine for vertical lamination. During the vertical lamination, the first glass and the second glass are precisely positioned to the inert gas filling position of the vertical lamination machine to stay and complete automatic filling; after the lamination is completed, the first glass and the second glass are tightly connected by a circle of 4SG thermoplastic spacer sealant, and the louver frame is located in the closed space surrounded by the first glass, the second glass and the 4SG thermoplastic spacer sealant; S6. After the production of the louvered insulating glass is completed, the finished product is moved from the vertical assembly machine to a designated location for storage. The louvered insulating glass finished product only uses 4SG thermoplastic spacing sealant as a spacing sealing strip to seal and support the glass.

2. The process for preparing louvered insulating glass according to claim 1, characterized in that: In step S5, after the lamination is completed, the thickness of the gap between the first glass and the second glass is A mm, then in step S2, the thickness of the 4SG thermoplastic spacer sealant applied on the first glass is (1+10%)*A mm, and the redundant thickness of the 4SG thermoplastic spacer sealant is deformed and escaped to the side during lamination.

3. The process for preparing louvered hollow glass according to claim 2, characterized in that: The thickness of the shutter frame is less than A millimeters.

4. The process for preparing louvered hollow glass according to claim 2, characterized in that: The thickness of the louver frame is equal to A millimeters. A circle of positioning glue with structural bonding strength is adhered to the periphery of the front and back surfaces of the louver frame and is respectively bonded and fixed to the first glass and the second glass.

5. The process for preparing louvered insulating glass according to claim 1, characterized in that: When the shutter insulating glass is a triple-glass double-cavity structure, the following steps are also included after S6: S7, applying glue to the second glass: applying a circle of 4SG thermoplastic spacer sealant at a designated position around the outer surface of the second glass; S8, installing the magnetic bridge fittings; pasting a positioning glue with structural bonding strength on the magnetic bridge cover plate, placing the magnetic bridge fittings inside a circle of 4SG thermoplastic spacer sealant on the second glass, and applying pressure to fix the magnetic bridge fittings on the second glass through the positioning glue with structural bonding strength. During the placement and bonding process, the magnetic bridge fittings and the 4SG thermoplastic spacer sealant on the first glass do not contact each other; S9, vertical lamination; taking another piece of glass as the third glass, using a vertical lamination machine to make the third glass squeeze a circle of 4SG thermoplastic spacer sealant on the second glass and complete the lamination; S10, the production of the three-glass double-cavity structured louvered insulating glass is completed, and the finished product is moved from the vertical assembly machine to the designated location for storage.

6. The process for preparing louvered insulating glass according to claim 5, characterized in that: In step S9, the thickness of the gap between the second glass and the third glass after the joining is completed is B mm. In step S7, the thickness of the 4SG thermoplastic spacer sealant injected on the second glass is (1+10%)*B mm. When the glass is joined, the redundant thickness of the 4SG thermoplastic spacer sealant is deformed and escaped to the side.

7. The process for preparing louvered insulating glass according to claim 5 or 6, characterized in that: The second glass is replaced by the first glass.

8. A long-lasting sealed louver insulating glass, characterized in that: The louvered insulating glass is prepared using the louvered insulating glass preparation process described in any one of claims 1 to 7.

9. The long-lasting sealed shutter insulating glass as claimed in claim 8, characterized in that: An inert gas is filled between the first glass and the second glass.

10. The long-lasting sealed louver insulating glass according to claim 8, characterized in that: An inert gas is filled between the second glass and the third glass or between the first glass and the third glass.

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