Hollow glass production process

By improving the insulating glass production process, including glass cutting, grinding, grooving, cleaning, tempering and multiple sealing treatments, combined with inert gas filling, the problem of poor sound insulation and heat insulation of insulating glass has been solved, and excellent sealing, sound insulation and structural stability have been achieved.

CN120681969APending Publication Date: 2025-09-23HUIZHOU QIANLU GLASS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510715005.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

The sound and heat insulation effects of traditional insulating glass production processes are poor and do not last long.

Method used

The glass is cut, polished, slotted, cleaned, dried, tempered, filled with hot melt adhesive, coated with butyl adhesive on the aluminum frame, heated and joined together, and sealed with adhesive, etc., combined with inert gas filling, to form a multiple sealing structure.

Benefits of technology

It improves the sealing, sound insulation and structural strength of insulating glass, and enhances the structural stability and thermal insulation performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a hollow glass production process, which comprises the following steps of: fully cleaning glass with an annular sealing groove through a glass cleaning step, and removing dust impurities on the glass. The glass is dried through the glass drying step. The glass is tempered through the glass tempering step. The molecular sieves are filled into the aluminum bulkhead through the aluminum bulkhead preparation step, and the drying effect on the heat insulation sealing cavity and the annular sealing heat insulation cavity can be achieved. The two pieces of glass are packaged through a rubber ring filling step, an aluminum partition frame gluing step, a first-time sheet combining step, a second-time sheet combining step and a glue sealing step. The heat insulation sealing cavity and the annular sealing heat insulation cavity in the hollow glass obtained by the production process of the hollow glass have a perfect sealing effect. Specifically, the hot melt rubber ring, the aluminum bulkhead and the sealant play a role in multiple sealing. The hollow glass obtained through the hollow glass production process is good in sealing performance, excellent in sound insulation effect, high in structural strength and excellent in structural stability.
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Description

Technical Field

[0001] The present invention relates to the field of plastic parts manufacturing, in particular to a hollow glass production process. Background Art

[0002] Insulating glass is a highly effective sound- and heat-insulating glass made by bonding two or three panes of glass to an aluminum alloy frame using a high-strength, airtight composite adhesive. Widely recognized for its superior properties over conventional double-glazed glass, insulated glass creates a dry air space between the glass layers. This air is kept dry by the presence of a desiccant inside the glass that absorbs water molecules. This prevents condensation from forming inside the glass when the temperature drops, while the dew point on the outer surface of the glass increases.

[0003] However, the traditional insulating glass production process, such as the technical solution disclosed in the patent with application number CN202410396842.7 and invention name "A hollow glass production line and its production process", has poor sound insulation and heat insulation effects on the insulating glass produced, and the effect does not last long. Summary of the Invention

[0004] Based on this, it is necessary to provide a hollow glass production process to address the technical problems that the sound insulation and heat insulation effects of the hollow glass prepared by the traditional hollow glass production process are poor and the duration is short.

[0005] A hollow glass production process, comprising the following steps: Glass cutting steps: cutting the glass sheet into preset shapes and sizes; Glass polishing steps: polish the edges of the cut glass; Glass grooving steps: open an annular sealing groove around one side of the polished glass; Glass cleaning steps: fully clean the glass after the annular sealing groove is opened; Glass drying step: drying the cleaned glass; Glass tempering step: tempering the dried glass; Rubber ring filling steps: Take a piece of tempered glass and fill the annular sealing groove with a hot melt rubber ring; Aluminum bulkhead preparation steps: Fill the aluminum bulkhead with molecular sieve; Aluminum bulkhead gluing steps: Apply butyl glue to the outer wall of the aluminum bulkhead; First joining step: press the side of a glass with an annular sealing groove to the aluminum frame; Second joining step: Press the side of the other glass with the annular sealing groove and the side of the aluminum frame facing away from the other glass together, so that the hot melt adhesive rings are accommodated in the two annular sealing grooves; heat treatment is performed during the joining process, so that the two glass pieces are sealed together by the hot melt adhesive rings to form an insulating sealed cavity; at the same time, the two glass pieces are sealed together by the aluminum frame and combined with the hot melt adhesive rings to form an annular sealed insulating cavity; Sealing steps: Use sealant to wrap and seal the edges of the two pieces of glass, and at the same time fill the sealant into the space formed by the two pieces of glass and the aluminum partition frame.

[0006] In one embodiment, in the glass grooving step, the distance between the edge of the annular sealing groove and the edge of the glass is 2.8 to 3.2 centimeters.

[0007] In one embodiment, the distance between the edge of the annular sealing groove and the edge of the glass is 3 cm.

[0008] In one embodiment, in the first lamination step, the size of the aluminum spacer is smaller than the size of the glass and larger than the size of the annular sealing groove.

[0009] In one embodiment, the distance from the edge of the aluminum frame to the edge of the glass is 0.8 cm to 1.2 cm.

[0010] In one embodiment, the distance from the edge of the aluminum frame to the edge of the glass is 1 cm.

[0011] In one embodiment, the distance from the edge of the aluminum bulkhead to the edge of the annular sealing groove is 0.8 cm to 1.2 cm.

[0012] In one embodiment, the distance from the edge of the aluminum bulkhead to the edge of the annular sealing groove is 1 cm.

[0013] In one embodiment, in the second sheet-joining step, dry inert gas is filled into the thermal insulation sealing cavity and the annular sealed thermal insulation cavity.

[0014] In one embodiment, the inert gas is argon.

[0015] The above-mentioned insulating glass production process steps are concise and exquisite, easy to operate, and each step is carried out carefully and meticulously. The glass cutting step is used to cut the glass plate into a preset shape and size. The glass polishing step is used to polish the edges of the glass. The glass grooving step is used to open annular sealing grooves around one side of the glass. The glass cleaning step is used to thoroughly clean the glass after the annular sealing groove is opened to remove dust and impurities on the glass. The glass is dried in the glass drying step. The glass is tempered in the glass tempering step. The molecular sieve is filled into the aluminum spacer frame in the aluminum spacer frame preparation step, which can dry the heat-insulating sealing cavity and the annular sealing heat-insulating cavity. The two pieces of glass are encapsulated by the rubber ring filling step, the aluminum spacer frame gluing step, the first joining step, the second joining step and the sealing step. The insulating sealing cavity and the annular sealing heat-insulating cavity in the insulating glass obtained by the insulating glass production process have a perfect sealing effect. Specifically, the hot-melt rubber ring, the aluminum spacer frame and the sealant play a multiple sealing role. The insulating glass obtained by the insulating glass production process has good sealing, excellent sound insulation effect, high structural strength and excellent structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the process of producing insulating glass in one embodiment. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0019] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0022] See also Figure 1 The present invention provides a hollow glass production process, which comprises the following steps: Step 101: Glass cutting step: cutting the glass plate into a preset shape and size.

[0023] In this embodiment, the preset shape is a square or a circle. Specifically, a glass cutting machine is used to cut the glass plate into a preset shape and size.

[0024] Step 102: Glass polishing step: polishing the edges of the cut glass.

[0025] Specifically, a grinder is used to grind the edges of the cut glass to improve the safety performance of the glass and the adhesion of the edges of the glass.

[0026] Step 103: Glass grooving step: An annular sealing groove is opened around one side of the polished glass.

[0027] Specifically, a groove cutting device is used to cut an annular sealing groove around one side of the polished glass. In this embodiment, the distance between the edge of the annular sealing groove and the edge of the glass is 2.8 to 3.2 centimeters. Furthermore, the distance between the edge of the annular sealing groove and the edge of the glass is 3 centimeters.

[0028] Step 104: Glass cleaning step: fully clean the glass after the annular sealing groove is opened.

[0029] Specifically, the glass after the annular sealing groove is opened is fully cleaned by using a cleaning device to remove dust and impurities on the glass.

[0030] Step 105: Glass drying step: drying the cleaned glass.

[0031] Specifically, a dryer is used to dry the cleaned glass to remove residual moisture on the glass.

[0032] Step 106: Glass tempering step: Tempering the dried glass.

[0033] Specifically, the dried glass is tempered by tempering equipment.

[0034] Step 107: Rubber ring filling step: Take a piece of tempered glass and fill the annular sealing groove with a hot melt rubber ring.

[0035] The shape and size of the hot melt rubber ring are adapted to the annular sealing groove.

[0036] Specifically, a hot melt adhesive ring is filled into the annular sealing groove of a piece of tempered glass.

[0037] Step 108: Aluminum bulkhead preparation step: Fill the aluminum bulkhead with molecular sieve.

[0038] Specifically, molecular sieves are filled in the aluminum partition frame to ensure the dry state of the insulating glass insulation sealing cavity and the annular sealing insulation cavity.

[0039] Step 109: Gluing of aluminum bulkhead: Apply butyl glue to the outer wall of the aluminum bulkhead.

[0040] Specifically, a glue sprayer is used to apply butyl glue on the outer wall of the aluminum frame so as to seal and bond the aluminum frame to the glass.

[0041] Step 110: First joining step: Press one side of a glass with an annular sealing groove to the aluminum spacer frame.

[0042] Specifically, a laminating device is used to press and bond the side of a glass sheet with the annular sealing groove to the aluminum spacer. In this embodiment, during the first laminating step, the aluminum spacer is smaller than the glass and larger than the annular sealing groove. The distance from the edge of the aluminum spacer to the edge of the glass is 0.8 cm to 1.2 cm. Specifically, the distance from the edge of the aluminum spacer to the edge of the glass is 1 cm. The distance from the edge of the aluminum spacer to the edge of the annular sealing groove is 0.8 cm to 1.2 cm. Specifically, the distance from the edge of the aluminum spacer to the edge of the annular sealing groove is 1 cm.

[0043] Step 111: Second Lamination Step: Press the side of the other glass with the annular sealing groove against the side of the aluminum frame facing away from the other glass, so that the hot-melt adhesive rings are contained within the two annular sealing grooves. During the lamination process, heat is applied to seal the two glass pieces together via the hot-melt adhesive rings, forming a heat-insulating, sealed cavity. Simultaneously, the two glass pieces are sealed together by the aluminum frame, forming a sealed, heat-insulating cavity with the hot-melt adhesive rings.

[0044] Specifically, a laminating device is used to press together the side of the other glass with the annular sealing groove and the side of the aluminum frame facing away from the other glass. During this process, the hot-melt adhesive rings are contained within the two annular sealing grooves. During the laminating process, a heat treatment is applied, melting the surface of the hot-melt adhesive rings, sealing the two glass pieces together through the hot-melt adhesive rings to form an insulating and sealed cavity. Simultaneously, the two glass pieces are sealed together by the aluminum frame, forming an annular sealed and insulating cavity with the hot-melt adhesive rings.

[0045] Step 112: Sealing step: Use sealant to wrap and seal the edges of the two pieces of glass, and at the same time fill the sealant into the space formed by the two pieces of glass and the aluminum spacer.

[0046] Specifically, an automatic sealing machine is used to wrap and seal the edges of the two pieces of glass with sealant, and at the same time, the sealant is filled into the space formed by the two pieces of glass and the aluminum partition frame.

[0047] To improve the structural stability and thermal insulation performance of insulating glass, in one embodiment, a dry inert gas is filled into the insulating sealed cavity and the annular sealed insulating cavity. Furthermore, the inert gas is argon. Argon can increase the air pressure within the insulating sealed cavity and the annular sealed insulating cavity, thereby improving the structural stability of the insulating glass. Furthermore, argon can also enhance the thermal insulation performance of the insulating glass. Thus, filling the insulating sealed cavity and the annular sealed insulating cavity with dry inert gas can improve the structural stability and thermal insulation performance of the insulating glass.

[0048] The above-mentioned insulating glass production process steps are concise and exquisite, easy to operate, and each step is carried out carefully and meticulously. The glass cutting step is used to cut the glass plate into a preset shape and size. The glass polishing step is used to polish the edges of the glass. The glass grooving step is used to open annular sealing grooves around one side of the glass. The glass cleaning step is used to thoroughly clean the glass after the annular sealing groove is opened to remove dust and impurities on the glass. The glass is dried in the glass drying step. The glass is tempered in the glass tempering step. The molecular sieve is filled into the aluminum spacer frame in the aluminum spacer frame preparation step, which can dry the heat-insulating sealing cavity and the annular sealing heat-insulating cavity. The two pieces of glass are encapsulated by the rubber ring filling step, the aluminum spacer frame gluing step, the first joining step, the second joining step and the sealing step. The insulating sealing cavity and the annular sealing heat-insulating cavity in the insulating glass obtained by the insulating glass production process have a perfect sealing effect. Specifically, the hot-melt rubber ring, the aluminum spacer frame and the sealant play a multiple sealing role. The insulating glass obtained by the insulating glass production process has good sealing, excellent sound insulation effect, high structural strength and excellent structural stability.

[0049] To enhance the adhesive properties of the hot-melt adhesive ring, thereby improving the structural stability and sealing performance of insulating glass, in one embodiment, the hot-melt adhesive ring is prepared from a hot-melt adhesive raw material comprising the following components by weight: 50 to 70 parts polyamide resin, 5 to 10 parts ethylene ethyl acrylate, 4 to 8 parts hydrogenated C5 petroleum resin, 10 to 20 parts paraffin wax, 6 to 10 parts polyisobutylene, and 7 to 14 parts thermoplastic styrene-butadiene rubber. The hot-melt adhesive ring composed of these components exhibits excellent adhesive properties, thereby improving the structural stability and sealing performance of insulating glass.

[0050] To enhance the sealant's bonding and sealing properties, thereby further improving the structural stability and sealing performance of insulating glass, in one embodiment, the sealant comprises the following components in parts by weight: 20-30 parts polydimethylsiloxane, 25-40 parts EPDM rubber, 6-12 parts polymethyl methacrylate, 8-14 parts terpene resin, 5-10 parts talc, 4-8 parts vermiculite, and 2-4 parts carbon black. The sealant composed of these components ensures excellent bonding and sealing properties, thereby further improving the structural stability and sealing performance of insulating glass.

[0051] To improve the drying performance of the molecular sieve, in one embodiment, the molecular sieve includes the following components in parts by weight: 30-40 parts calcium bicarbonate, 5-10 parts sodium carbonate, 15-25 parts sodium bentonite, 10-20 parts silica powder, 5-10 parts aluminum oxide powder, 4-8 parts sepiolite, and 3-6 parts sodium hexametaphosphate. This molecular sieve has excellent water absorption properties, ensuring the dryness of the thermally sealed and annular sealed insulation cavities.

[0052] To enhance the adhesive properties of butyl rubber, thereby further improving the structural stability and sealing performance of insulating glass, in one embodiment, the butyl rubber comprises the following components by weight: 30-60 parts butyl rubber, 6-15 parts rosin resin, 3-6 parts polyolefin elastomer, 5-12 parts polyisobutylene, 4-8 parts titanium dioxide, 2-4 parts silica powder, 6-10 parts aminosilane, 1-2 parts sodium dodecylbenzene sulfonate, and 1-2 parts nano-silica. This butyl rubber possesses excellent adhesive properties, further improving the structural stability and sealing performance of insulating glass. The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A hollow glass production process, characterized in that: The process comprises the following steps: Glass cutting steps: cutting the glass sheet into preset shapes and sizes; Glass polishing steps: polish the edges of the cut glass; Glass grooving steps: open an annular sealing groove around one side of the polished glass; Glass cleaning steps: fully clean the glass after the annular sealing groove is opened; Glass drying step: drying the cleaned glass; Glass tempering step: tempering the dried glass; Rubber ring filling steps: Take a piece of tempered glass and fill the annular sealing groove with a hot melt rubber ring; Aluminum bulkhead preparation steps: Fill the aluminum bulkhead with molecular sieve; Aluminum bulkhead gluing steps: Apply butyl glue to the outer wall of the aluminum bulkhead; First joining step: press the side of a glass with an annular sealing groove to the aluminum frame; Second joining step: Press the side of the other glass with the annular sealing groove and the side of the aluminum frame facing away from the other glass together, so that the hot melt adhesive rings are accommodated in the two annular sealing grooves; heat treatment is performed during the joining process, so that the two glass pieces are sealed together by the hot melt adhesive rings to form an insulating sealed cavity; at the same time, the two glass pieces are sealed together by the aluminum frame and combined with the hot melt adhesive rings to form an annular sealed insulating cavity; Sealing steps: Use sealant to wrap and seal the edges of the two pieces of glass, and at the same time fill the sealant into the space formed by the two pieces of glass and the aluminum partition frame.

2. The process according to claim 1, characterized in that In the glass grooving step, the distance between the edge of the annular sealing groove and the edge of the glass is 2.8 to 3.2 centimeters.

3. The process according to claim 2, characterized in that The distance between the edge of the annular sealing groove and the edge of the glass is 3 cm.

4. The process according to claim 1, characterized in that In the first lamination step, the size of the aluminum frame is smaller than that of the glass and larger than that of the annular sealing groove.

5. The process according to claim 4, characterized in that The distance from the edge of the aluminum frame to the edge of the glass is 0.8 cm to 1.2 cm.

6. The process according to claim 5, characterized in that The distance from the edge of the aluminum frame to the edge of the glass is 1 cm.

7. The process according to claim 4, characterized in that The distance from the edge of the aluminum bulkhead to the edge of the annular sealing groove is 0.8 cm to 1.2 cm.

8. The process according to claim 7, characterized in that The distance from the edge of the aluminum bulkhead to the edge of the annular sealing groove is 1 cm.

9. The process according to claim 1, characterized in that In the second sheet-closing step, dry inert gas is filled into the heat-insulating sealed cavity and the annular sealed heat-insulating cavity.

10. The process according to claim 9, characterized in that The inert gas is argon.

Citation Information

Patent Citations

  • Hollow glass production line and production process thereof

    CN118191285A