CN214821517U - Laminated glass's exhaust structure - Google Patents

Abstract

The embodiment of the utility model discloses laminated glass's exhaust structure relates to laminated glass technical field. The exhaust structure of the laminated glass comprises a plurality of pieces of glass which are sequentially stacked, and an adhesive layer is filled between every two adjacent pieces of glass; the edge part of the adhesive clamping layer is smaller than the edge part of the glass; the edge of the glass is stuck with an adhesive tape covering the edge of the adhesive layer; an air outlet which is not covered by the adhesive tape is reserved at the edge part of the adhesive tape layer. The embodiment of the utility model provides an in, the limit portion of doubling is less than glass's limit, forms exhaust passage after pasting through the sticky tape, and the limit portion reservation of doubling has the gas vent that is not covered by the sticky tape simultaneously, and during the exhaust, gas can flow through exhaust passage and flow out from the gas vent, and the gas flow direction is fixed, and the guide doubling layer is out of shape according to predetermined orbit to cancelled the secondary deburring, when raising the efficiency, improved the limit portion quality of product, reduced customer complaint.

Description

Laminated glass's exhaust structure

Technical Field

The utility model relates to a laminated glass technical field especially relates to a laminated glass's exhaust structure.

Background

After the laminated glass is broken by impact, the glass cannot fall into broken glass due to the bonding effect of a PVB film sandwiched between two pieces of glass, and the laminated glass is called as safety glass. Is widely applied to the fields of buildings, automobiles and the like

People seek safety performance and have higher and higher requirements on the appearance of products.

The production process of the laminated glass comprises the steps of adding PVB or SGP between two or even multiple pieces of glass, pre-pressing a product by rolling and heating, then vacuumizing, and finally entering a high-pressure kettle to form the final laminated glass through stages of temperature rise and pressure rise, heat preservation and pressure maintenance, temperature reduction and pressure reduction.

In order to meet the requirement that the adhesive clamping layer shrinks after being heated in the pre-pressing stage, the size of the common adhesive clamping layer is larger than that of glass, the pre-pressed glass deforms at the edge of the glass due to the fact that the adhesive clamping layer exposed at high temperature is attached to the edge of the glass, exhaust of products in subsequent processes can be affected, and the residual adhesive on the four sides of the glass needs to be cleaned.

The prior art scheme is as follows: cutting off the residual glue at the edge part by using a blade to enable the edge part of the glass to be flush with the edge part of the glue-sandwiched layer, wrapping the inner cloth by using an inner layer and wrapping the felt cloth by using an outer layer to wrap the periphery of the glass, sleeving a vacuum bag to vacuumize, and then feeding the glass sleeved with the vacuum bag into an autoclave together for final pressing.

Because the wrapping layer is breathable, the laminated rubber layer does not have a fixed direction during air exhaust, the laminated rubber layer can overflow and deform along with an exhaust channel through high temperature and high pressure, secondary trimming needs to be carried out on a product, and the manual trimming effect is poor, so that customer complaints are often received.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve is that laminated glass current exhaust mode needs the secondary deburring, the problem that inefficiency and deburring effect are poor.

In order to solve the above problem, the embodiment of the utility model provides a following technical scheme is proposed:

in a first aspect, an embodiment of the present invention provides an exhaust structure for laminated glass, where the exhaust structure for laminated glass includes a plurality of glasses stacked in sequence, and an adhesive layer is filled between two adjacent glasses; the edge part of the adhesive clamping layer is smaller than the edge part of the glass; the edge of the glass is stuck with an adhesive tape covering the edge of the adhesive layer; an air outlet which is not covered by the adhesive tape is reserved at the edge part of the adhesive tape layer.

The further technical proposal is that the exhaust port is covered with a first breathable fabric.

The further technical proposal is that a second breathable cloth is covered outside the first breathable cloth.

The further technical scheme is that the first breathable cloth is lining cloth.

The further technical proposal is that the second air-permeable cloth is felt cloth.

The further technical proposal is that the number of the exhaust ports is at least four.

The further technical proposal is that the exhaust ports are respectively positioned on four sides of the glass.

The further technical proposal is that the distance between the edge of the adhesive layer and the edge of the glass is 1.5-3 cm.

The further technical proposal is that the material of the laminated layer is PVB.

The further technical scheme is that the material of the laminated rubber layer is SGP.

Compared with the prior art, the embodiment of the utility model provides a technical effect that can reach includes:

the embodiment of the utility model provides an in, the limit portion of doubling is less than glass's limit, forms exhaust passage after pasting through the sticky tape, and the limit portion reservation of doubling has the gas vent that is not covered by the sticky tape simultaneously, and during the exhaust, gas can flow through exhaust passage and flow out from the gas vent, and the gas flow direction is fixed, and the guide doubling layer is out of shape according to predetermined orbit to cancelled the secondary deburring, when raising the efficiency, improved the limit portion quality of product, reduced customer complaint.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a cross-sectional view of an exhaust structure of laminated glass according to an embodiment of the present invention;

fig. 2 is another cross-sectional view of an exhaust structure of a laminated glass according to an embodiment of the present invention;

fig. 3 is a further cross-sectional view of an exhaust structure of a laminated glass according to an embodiment of the present invention;

fig. 4 is a top view of an exhaust structure of a laminated glass according to an embodiment of the present invention;

fig. 5 is a side view of an exhaust structure of a laminated glass according to an embodiment of the present invention.

Reference numerals

Glass 10, adhesive layer 20, tape 30, vent 40, first breathable fabric 50, and second breathable fabric 60.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Referring to fig. 1-5, an embodiment of the present invention provides an exhaust structure for laminated glass 10, which is used in an exhaust process in a production process of laminated glass 10.

The exhaust structure of the laminated glass 10 includes a plurality of sequentially stacked glasses 10 (for example, three glasses 10 in this embodiment), and an adhesive layer 20 is filled between two adjacent glasses 10; the edge of the laminated layer 20 is smaller than the edge of the glass 10; an adhesive tape 30 is adhered to the edge of the glass 10 to cover the edge of the adhesive layer 20; the edge of the adhesive layer 20 is reserved with an air outlet 40 uncovered by the adhesive tape 30.

Specifically, the adhesive tape 30 is resistant to high temperature and high pressure, and has good sealing performance. The glass 10 is tightly adhered to the tape 30, and the portion where the tape 30 is adhered cannot leak air during vacuum-pumping.

The embodiment of the utility model provides an in, the limit portion of doubling layer 20 is less than glass 10's limit portion, form exhaust passage after pasting through sticky tape 30, the limit portion reservation of doubling layer 20 has the gas vent 40 that is not covered by sticky tape 30 simultaneously, during the exhaust, gas can flow through exhaust passage and flow out from gas vent 40, the gas flow direction is fixed, guide doubling layer 20 is according to predetermined orbit deformation, thereby cancelled the secondary deburring, when improving the efficiency, improve the limit portion quality of product, reduce customer complaint.

Further, the air outlet 40 is covered with a first air-permeable cloth 50.

Further, the first breathable fabric 50 is covered with a second breathable fabric 60.

The first gas permeable cloth 50 and the second gas permeable cloth 60 can effectively prevent the vacuum bag from being stuck in the gap between the laminated glass 10 when the vacuum is applied to the laminated glass 10.

Further, the first air-permeable fabric 50 is a lining fabric. The second air-permeable fabric 60 is a felt fabric.

It should be noted that the above materials of the first breathable fabric 50 and the second breathable fabric 60 are only examples provided by the present invention, and those skilled in the art can also adopt other breathable fabrics, which do not exceed the protection scope of the present invention.

Further, the number of the exhaust ports is at least four. The exhaust ports are respectively positioned on four sides of the glass.

For example, in the present embodiment, the number of the exhaust ports 40 is four. The four exhaust ports 40 are located at the four corners of the glass 10, respectively.

By providing four exhaust ports 40 located at the four corners of the glass 10, respectively, the exhaust can be made more uniform.

Further, the distance d between the edge of the adhesive layer 20 and the edge of the glass 10 is 1.5-3 cm. For example, in the present embodiment, the distance d between the edge of the adhesive layer 20 and the edge of the glass 10 is 2 cm. A distance of 2cm is reserved for the formation of venting channels during the covering of the adhesive tape on the one hand and for the expansion of the adhesive layer 20 during venting on the other hand.

Further, the material of the adhesive layer 20 is PVB (polyvinyl butyral) or SGP film.

It should be noted that the above material of the adhesive layer 20 is only an example given by the present invention, and those skilled in the art can also adopt the adhesive layer 20 made of other materials, which does not exceed the protection scope of the present invention.

In order to better explain the technical solution of the present invention, the embodiment of the present invention provides an exhaust method using the above exhaust structure, which includes the following steps S1-S7.

And S1, edging the edge of the sandwich glass.

In the specific implementation, the edge grinding treatment (fine edge grinding) is carried out on the edge of the laminated glass, so that the edge of the laminated glass forms a good bonding surface, and the adhesive tape is prevented from being bonded insecurely.

And S2, cleaning the residual glue on the edge of the laminated glass to ensure that the edge of the laminated glass layer is smaller than the edge of the laminated glass.

And S3, adhering an adhesive tape covering the edge of the adhesive layer to the edge of the laminated glass, and reserving an exhaust port which is not covered by the adhesive tape at the edge of the adhesive layer.

In the specific implementation, the adhesive tape is resistant to high temperature and high pressure and has good sealing property. The glass is tightly bonded with the adhesive tape, and the part bonded with the adhesive tape cannot leak air during vacuum pumping.

And S4, sequentially wrapping the exhaust port with the first breathable fabric and the second breathable fabric.

In a specific implementation, the first breathable fabric is made of inner fabric. The second breathable cloth is made of felt cloth.

And S5, putting the laminated glass into a vacuum bag, and vacuumizing.

And S6, putting the laminated glass into an autoclave for pressing.

And S7, taking the laminated glass out of the autoclave, and removing the vacuum bag and the adhesive tape after cooling.

The embodiment of the utility model provides an in, the limit portion of doubling is less than glass's limit, forms exhaust passage after pasting through the sticky tape, and the limit portion reservation of doubling has the gas vent that is not covered by the sticky tape simultaneously, and during the exhaust, gas can flow through exhaust passage and flow out from the gas vent, and the gas flow direction is fixed, and the guide doubling layer is out of shape according to predetermined orbit to cancelled the secondary deburring, when raising the efficiency, improved the limit portion quality of product, reduced customer complaint.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The exhaust structure of the laminated glass is characterized by comprising a plurality of sequentially stacked glasses, wherein an adhesive layer is filled between every two adjacent glasses; the edge part of the adhesive clamping layer is smaller than the edge part of the glass; the edge of the glass is stuck with an adhesive tape covering the edge of the adhesive layer; an air outlet which is not covered by the adhesive tape is reserved at the edge part of the adhesive tape layer.

2. The exhaust structure of laminated glass according to claim 1, wherein the exhaust port is covered with a first gas-permeable cloth.

3. The laminated glass exhaust structure according to claim 2, wherein the first gas-permeable cloth is covered with a second gas-permeable cloth.

4. The laminated glass exhaust structure according to claim 3, wherein the first air-permeable cloth is an inner cloth.

5. The exhaust structure of laminated glass according to claim 4, wherein the second air-permeable cloth is a felt cloth.

6. The exhaust structure of laminated glass according to claim 1, wherein the number of the exhaust ports is at least four.

7. The exhaust structure of laminated glass according to claim 6, wherein the exhaust ports are respectively located at four sides of the glass.

8. The degassing structure for laminated glass according to claim 1, wherein the distance between the edge portion of the glass and the edge portion of the laminated glass is 1.5 to 3 cm.

9. The laminated glass exhaust structure according to claim 1, wherein the material of the adhesive layer is PVB or SGP.

Images