A double-suspension membrane core assembly that can be processed offline

Abstract

The application discloses a double-suspension-film core assembly which can be processed offline. The core assembly comprises a double-film assembly which is formed by welding edges of two films in four directions, beveling four end corners to form a notch, and cutting the four edges into serrated edges with arc notches. A tension frame is installed in the double-film assembly through beveling the notch, and the two films are supported to form an internal hollow. Two sets of sealing frames are additionally installed on the outside of the double-film assembly and the tension frame. The two sets of sealing frames are connected by a clamping strip with two levels of clamping positions. After the initial pressing, the first level of clamping position is formed, and the assembly can be transported to a hollow glass processing factory as an independent assembly. When the assembly is sealed with two pieces of glass, the two sets of sealing frames are pressed again to form the two levels of clamping position. The film clamping flange on the sealing frame on the two sides presses the film to clamp the rear flange of the tension frame, so that the tension frame is kept square. The front flange supports the double-film assembly. The application can be conveniently sealed with two pieces of glass to form hollow glass with three layers of heat-insulating internal cavities.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of green building energy saving, in particular to a double-suspension film core assembly for efficient energy-saving hollow glass cavity that can be processed offline. BACKGROUND

[0002] The efficient energy-saving glass processing technology and products required for energy-saving buildings are basically to place more intermediate layers such as glass, film, sunshade plate and louver in the sealed space formed by two pieces of glass to achieve energy saving.

[0003] At present, the three-glass two-cavity hollow glass system commonly used in the green building industry is to add a third glass in the middle of the standard hollow glass and further provide energy-saving effect by filling inert gas. However, the increase in weight is an obvious disadvantage. In order to overcome this disadvantage, it is a good solution to replace the above-mentioned intermediate layer glass with a plastic film with high tensile strength and optical coating. Even the double-suspension film technology of suspending two layers of optical film in the middle of the hollow glass to replace the intermediate layer glass and increase the thermal insulation cavity has been attracting more and more attention.

[0004] In the known processing process of double-suspension film hollow glass technology, whether using multi-point spring layout tension type film stretching or using plastic film heat shrinkage to apply pre-tension, it still has to rely on glass as the substrate for film stretching, which increases the difficulty of film coating processing, and is not matched with the mature hollow glass packaging technology, and cannot fully utilize the automation advantages of the hollow glass processing production line, thereby restricting the improvement of production rhythm, and there are urgent problems to be overcome in reducing manufacturing cost. SUMMARY

[0005] The present application aims to solve the technical problems of large film coating processing difficulty, mismatch with hollow glass packaging process and equipment, and high preparation cost in the hollow glass processing technology of replacing intermediate layer glass with suspension film, and provides a double-suspension film core assembly that can be processed offline.

[0006] The core assembly can be efficiently processed as an independent assembly, does not need to be coated and stretched on a glass substrate, is independent of the packaging of the insulating glass, and is quickly processed by existing mature professional equipment such as coating, welding, cutting and the like, and then the installation of the tension frame and the assembly of the outer packaging frame are completed in the space of the two processed plastic films, and the processing and assembly of the tension frame and the packaging frame can be processed by a mature window frame production line. In this way, the double-suspension-film core assembly as an independent assembly can be conveniently and flexibly transported to the insulating glass processing factory and packaged with two glass sheets. When the core assembly is packaged on the insulating glass processing line, the core assembly can be operated in a standardized manner according to the original insulating glass process, like a spacer or an embedded shutter, thereby greatly simplifying the processing process, improving the production rhythm, and fully optimizing the manufacturing cost.

[0007] The technical scheme of the present application:

[0008] A double-suspension-film core assembly that can be processed offline includes two sets of packaging frames, two sets of packaging frames are connected together through a clamping groove and a clamping groove with two levels of pressing clamping, and a double-film assembly composed of two pieces of film supported by a tension frame is installed in the four surrounding cavities formed inside the two sets of packaging frames and the clamping groove with two levels of pressing clamping, the four surrounding edges of the double-film assembly are positioned on the film-stretching flanges arranged inside the two sets of packaging frames, and when the two sets of packaging frames and the clamping groove form a two-level pressing clamping connection, the film-stretching flanges on the two sets of packaging frames simultaneously press the two pieces of film stretched by the tension frame, and the tension frame is clamped to keep it square, thereby realizing a double-suspension-film core assembly that can be processed independently of the insulating glass packaging line.

[0009] The double-film assembly includes two pieces of film welded together around the edges, each of the four corners of the two pieces of film is obliquely cut to form a discontinuity, a group of arc discontinuities are sawed in the form of a sawtooth around the edges, a part of the surrounding edges is retained to form a tension cable, and a section of tension frame edge strip is inserted between the two pieces of film through the discontinuity at the corner, and the ends of the adjacent tension frame edge strips at the corner are fixedly connected together to form a complete tension frame and tension the two pieces of film.

[0010] The tension frame edge strip is a hollow special-shaped pipe, a blocking sleeve is installed at both ends of the special-shaped pipe, the ends of the adjacent tension frame edge strips at the four corners are each fixedly connected together through a group of tensioners, the tensioner includes two tensioning legs, the end head fixedly connected with the two tensioning legs is a hook, a spring for adjusting the extension and contraction of the tension frame is sleeved on the tensioning leg inserted into the corresponding blocking sleeve, and the hook parts of the two tensioning legs are fixedly connected together to form a complete tension frame.

[0011] The tension frame of the double membrane assembly is a hollow special-shaped tube, which has two symmetrical concave surfaces in the cross section as the membrane stretching concave, and the outward side of the two end surfaces in the longitudinal direction is arc-shaped, and the inward side is flat, the two ends of the membrane stretching concave are provided with two arc-shaped protrusions, the two protrusions adjacent to the flat end surface are front flanges, and the two protrusions adjacent to the arc-shaped end surface are rear flanges. The packaging frame is a rectangular frame formed by connecting and fixing the frames made of the heat insulation profiles by four corner assembling devices, and each of the opposite sides of the two packaging frames is provided with two levels of clamping grooves matched with two levels of clamping positions on the clamping strip. The cross-sectional shape of the heat insulation profile used by the packaging frame comprises a closed part with a cavity near the inner side, and an open part near the outer side, and the inner part of the open part is provided with a first clamping groove and a second clamping groove matched with two levels of clamping positions on the clamping strip. The inner side of the open part of the heat insulation profile, i.e. the closed part, is lower than the outer side, and the outer side of the open end is turned outward to form a packaging end plate. The open part of the heat insulation profile is further provided with a membrane stretching flange protruding upward relative to the side plane of the double membrane assembly.

[0012] The cross-sectional shape of the clamping strip comprises a clamping strip body part in the middle and two clamping plates with bifurcations on both sides, and the outer side wall of each clamping plate is provided with a first tooth and a second tooth of two levels of clamping positions, which are used to cooperate with the two levels of clamping grooves on the packaging frame.

[0013] The corner assembling device comprises two feet with the same cavity shape as the closed part of the heat insulation profile used by the packaging frame, i.e. a first foot and a second foot, and the two feet are fixed together at a right angle to form a corner assembling device.

[0014] The double suspension membrane core assembly provided by the application can be transported to a hollow glass processing factory as an independent assembly after primary compression and connection of the first level of clamping positions, and when the assembly is packaged with two pieces of glass, two sets of packaging frames are re-compressed to form airtight connection of the second level of clamping positions, the membrane stretching flanges on the two packaging frames press down the two pieces of film and clamp the rear flanges of the tension frame to keep the tension frame square, and the front flanges tightly support the double membrane assembly. The application can be easily packaged with two pieces of glass to form hollow glass with three layers of heat insulation cavities.

[0015] The application has the advantages and positive effects that:

[0016] The processing and production of the core assembly provided by the application are completely independent of the hollow glass processing production line, and the application is completely independent of the glass processing equipment and process using glass as the substrate, and completely adopts the process using plastic film processing as the core.

[0017] The double-suspension film core assembly can be flexibly transported to a hollow glass processing factory as a separate assembly, and is packaged by taking full advantage of the existing hollow glass automatic production line, and only the key devices of the hollow glass processing line need to be adjusted to complete the continuous production of the double-suspension film hollow glass with two glasses and three cavities.

[0018] Meanwhile, the problems of weight and size, sealing structure and the like are more reasonably solved, and finally the manufacturing cost problem is maximally optimized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the core assembly of the application;

[0020] Figure 2 It is a schematic diagram of the edge cutting of the two plastic films of the application;

[0021] Figure 3 It is a schematic diagram of the assembly of the tension frame edge strip of the application;

[0022] Figure 4 It is a schematic diagram of the double-film assembly after the tension frame is installed of the application;

[0023] Figure 5 It is a schematic diagram of the application Figure 4 It is an enlarged schematic detail view of the A part at the middle end corner;

[0024] Figure 6 It is a schematic diagram of the installation of the tensioner on the tension frame edge strip of the application;

[0025] Figure 7 It is a schematic diagram of the application Figure 6 It is an enlarged schematic detail view of the B part at the middle end corner;

[0026] Figure 8 It is a schematic diagram of the installation of the tension frame on the internal space of the two plastic films of the application;

[0027] Figure 9 It is a schematic diagram of the application Figure 8 It is an enlarged schematic detail view of the C part at the middle end corner;

[0028] Figure 10 It is a schematic diagram of the assembly of the one-side packaging frame of the application;

[0029] Figure 11 It is a schematic diagram of the application Figure 10 It is an enlarged schematic detail view of the D part at the middle end corner;

[0030] Figure 12 It is a schematic diagram of the installation of the clamping strip on the one-side packaging frame of the application;

[0031] Figure 13 It is a schematic diagram of the application Figure 12 It is an enlarged schematic detail view of the E part at the middle end corner;

[0032] Figure 14 The schematic diagram of the core assembly of the present application;

[0033] Figure 15 The schematic diagram of the core assembly of the present application forming a primary clamping connection;

[0034] Figure 16 The schematic diagram of the core assembly of the present application and two pieces of glass packaging. DETAILED DESCRIPTION

[0035] In order to further understand the content, characteristics and effects of the present application, the following detailed description is made with reference to the accompanying drawings:

[0036] Please refer to Figure 1 A double-suspended film core assembly capable of being processed offline comprises two sets of packaging frames 4a and 4b, two sets of clamping grooves are arranged on the packaging frames, the two sets of packaging frames are placed opposite to each other and connected into a whole through the clamping grooves and the middle clamping strip 6, a double film assembly 1 composed of two pieces of film supported by a tension frame is installed in the four surrounding cavities formed inside the two sets of packaging frames and the clamping strip in a primary pressing clamping connection, the four surrounding edges of the double film assembly are positioned on the film-tightening flanges arranged on the inner side of the two sets of packaging frames, when the two sets of packaging frames and the clamping strip form a secondary pressing clamping connection, the film-tightening flanges on the two sets of packaging frames simultaneously press the two pieces of film tightened by the tension frame, and the tension frame is clamped to keep it square, thereby realizing the double-suspended film core assembly assembly capable of being processed independently from the hollow glass packaging line.

[0037] The specific structure of the double film assembly 1 can be seen from Figures 2 to 9 .

[0038] Please refer to Figure 2 First, two pieces of plastic film are stretched flat and the edges are aligned and attached together, and the two pieces of plastic film 1a and 1b come from two film rolls on the same edge welding machine.

[0039] The double film assembly 1 is cut by the cutting device at the tail of the edge welding machine, first, the four end corners are obliquely cut to expose the fracture 1.1, then a group of arc fractures 1.3 as strain buffer belts 1.3 are cut at intervals on the four surrounding edges, forming a zigzag shape, and a section of the welding edge remaining on the four surrounding edges is used as a film-tightening cable 1.2.

[0040] Please refer to Figures 3 to 5In the double membrane assembly 1, four tension frame edge strips 2 made of stainless steel special-shaped pipes are installed, the two ends of the tension frame edge strips 2 are internally provided with support spring telescopic sealing sleeve 2.3, the sealing sleeve 2.3 has (four petal-shaped) hollow inner cavity 2.5, the outer edge 2.4 of the outer side has the same shape and size as the outer edge of the tension frame edge strip special-shaped pipe, the middle part of the sealing sleeve has a size slightly smaller than the size of the internal cavity of the tension frame edge strip 2 and can be inserted into the internal cavity of the tension frame edge strip 2, the sealing bottom of the inner side has a spring telescopic guide hole 2.6, the cross section of the tension frame edge strip 2 presents two symmetrical concave surfaces as the membrane stretching concave 2.7 (as shown in Figure 3 ), the outer side of the two end faces in the longitudinal direction presents an arc surface and the inner side presents a plane, the two ends of the membrane stretching concave 2.7 present two arc-shaped protrusions, the two protrusions adjacent to the plane end face are the front flange 2.1, and the two protrusions adjacent to the arc-shaped end face are the rear flange 2.2. First, the four tension frame edge strips 2 provided with the sealing sleeve 2.3 are respectively inserted into the internal space of the double membrane assembly 1 through the oblique cut-off 1.1 at the four corners of the double membrane assembly 1, and the four tension frame edge strips 2 are supported against the four surrounding tension cables 1.2 to form an internal cavity.

[0041] Referring to Figure 6 and Figure 7 , the end parts of the adjacent tension frame edge strips at the four corners of the tension frame are connected and fixed together by a set of tensioners, the tensioner includes two tensioning legs, the end head connected and fixed with the two tensioning legs is a bend head, the tensioning leg inserted into the corresponding sealing sleeve is provided with a spring for adjusting the telescoping of the tension frame, and the bend head parts of the two tensioning legs are fixed together to form a complete tension frame.

[0042] First, the two left legs 3a of the tensioner 3 are respectively inserted into the two ends of the sealing sleeve 2.3 installed on the longer side of the tension frame edge strip 2 by the mechanical hand, and the compression spring 3.4 is compressed to expose only the bend head 3.1 and make the abdomen of the bend head 3.1 upward, and the other mechanical hand simultaneously performs the same operation to install the two left legs 3a of the tensioner 3 on the longer side of the tension frame edge strip 2 and also expose only the bend head 3.1 and make the abdomen of the bend head upward. After this step is completed, the other two mechanical hands perform the same operation to complete the installation of the right leg 3b of the tensioner 3 on the shorter sides of the tension frame edge strip, and make the abdomen of each bend head 3.1 downward.

[0043] Referring to Figure 8 and Figure 9 , finally, the abdomen of the bend head 3.1 of each of the two legs 3a and 3b at the corner is attached (as shown in Figure 8 , the bend head parts of the left and right legs are designed as male and female, each occupying half, and after the two bend heads are attached, a complete end head is formed, (as shown in Figure 9The two fitting elbow joints 3.1 (making the left and right legs at right angles) are fixed by laser welding on each mechanical arm. After the operation is completed, the four tension frame strips 2 of the four tensioners 3 support the inner space of the double membrane assembly 1, and the tensioning cables 1.2 around the double membrane assembly 1 pull the two plastic films 1a and 1b. The tension frame strips 2 are driven by the tensioners 3 to tightly support the double membrane assembly 1 from the inside to the outside.

[0044] Referring to Figure 13 Two sets of packaging frames 4a and 4b are installed on both sides of the double membrane assembly 1 and the tension frame 2, and are connected by two-stage clamping of the clamping strip 6.

[0045] Referring to Figure 10 and Figure 11 The packaging frame 4 is a closed rectangular frame assembled by four heat-insulating profiles through a corner assembling device 5. The heat-insulating profiles of the packaging frame 4 are divided into an inner closed part with a cavity (trapezoidal cavity) 4.2 and an outer open part with two-stage clamping grooves 4.3 and 4.4. The inner closed part is provided with a film-tightening flange 4.1 protruding upward relative to the end face on which the double membrane assembly is installed. The inwardly inclined end face is a decorative plate 4.5. The open part adjacent to the trapezoidal cavity has a first clamping groove 4.3 and a second clamping groove 4.4 for connecting the clamping positions. The outer end face of the open part is a packaging surface 4.7 for applying structural adhesive. The end plate with an outer eaves is a packaging end plate 4.6 for connecting and sealing the two sets of packaging frames 4a and 4b. The corner assembling device 5 is injection molded by two right-angled supporting legs 5.1 and 5.2 with cavities 5.3, and is assembled with the trapezoidal cavity 4.2.

[0046] Referring to Figure 12 and Figure 13 The clamping strip 6 is installed on the open part of the assembled side packaging frame 4a. The clamping strip 6 is an extruded engineering plastic profile. The middle part is the clamping strip body part, and the two sides are symmetrical and have bifurcated clamping plates 6.3. Each clamping plate 6.3 is provided with a first tooth 6.1 and a second tooth 6.2 for two-stage clamping on the outer side wall. The clamping strip 6 is straight cut into four sections according to the given size, and is inserted into the first clamping groove 4.3 of the corresponding packaging frame 4. The installed clamping strip 6 surrounds a rectangular space for placing the double membrane assembly 1 supported by the tension frame 2.

[0047] Referring to Figure 14 The double membrane assembly 1 supported by the tension frame 2 is placed in the rectangular frame surrounded by the clamping strip 6 inserted into the packaging frame 4a. Moreover, the front and rear flanges 2.1 and 2.2 of the tension frame strip 2 are aligned with the corresponding four peripheral intervals of the double membrane assembly 1 and are placed on the rectangular embankment surrounded by the film-tightening flange 4.1 of the packaging frame 4. Then, the open part of the other packaging frame 4b is inserted into the clamping plate 6.3 of the clamping strip 6 with the open part downward, and the first tooth 6.1 on the clamping plate 6.3 is clamped into the first clamping groove 4.3 of the packaging frame. Finally, referring toFigure 1 A disposable temporary sealing tape 10 is pasted on the end face of the connecting end plate 4.6 of the two side sealing frames 4a and 4b. Through the above operation, the double-suspension membrane core assembly is finally completed and transferred to the storage and transportation workshop as an independent assembly.

[0048] Referring to Figure 1 , Figure 15 and Figure 16 , the double-suspension membrane core assembly as an independent assembly can be flexibly transferred to the glass processing plant, and is encapsulated with two pieces of glass 7a and 7b on the hollow glass processing line. Before being pressed and combined with the two pieces of glass, the disposable temporary sealing tape 10 is removed, and then a circle of hot-melt butyl glue 8a and 8b is coated on the sealing end face of the bottom of the two side sealing frames, respectively. At the same time, a circle of hot-melt butyl glue 8 is also coated on the surface of the side end plate 4.6 in the space originally closed by the disposable sealing tape 10. After the double-suspension membrane core assembly coated with hot-melt butyl glue is pressed and combined with the two pieces of glass 7a and 7b by the plate press, the two-stage teeth 6.1 and 6.2 of the clamping plate 6.3 at both ends of the clamping strip 6 are all clamped into the first clamping groove 4.3 and the second clamping groove 4.4 of the two sets of sealing frames 4a and 4b. The membrane-tightening flange 4.1 on the two sets of sealing frames 4 clamps the rear flange 2.2 of the tensioning frame to keep the tensioning frame square. At the same time, the front flange 2.1 of the tensioning frame tightens and flattens the two pieces of membrane of the double-membrane assembly 1. Finally, the silicone structural sealant 9 is injected into the groove formed by the sealing face 4.7 of the two side sealing frames, the sealing end plate 4.6 and the glass edge portion by the glue injection machine of the hollow glass line, and the double-suspension membrane three-layer thermal insulation hollow glass with inner cavity is finally produced and processed.

Claims

1. A double suspended membrane core assembly processable off-line, characterized in that, The double membrane assembly includes two pieces of film welded together at the four edges, each of the four end corners of the two pieces of film is obliquely cut to form a notch, a set of arc-shaped notches are cut at the four edges, and the remaining part of the four edges forms a tension cable; a tension frame edge strip is inserted between the two pieces of film through the notch at the end corner; the end portions of the adjacent tension frame edge strips at the end corner are fixed together to form a complete tension frame. The double membrane assembly includes two pieces of film welded together at the four edges, each of the four end corners of the two pieces of film is obliquely cut to form a notch, a set of arc-shaped notches are cut at the four edges, and the remaining part of the four edges forms a tension cable; a tension frame edge strip is inserted between the two pieces of film through the notch at the end corner; the end portions of the adjacent tension frame edge strips at the end corner are fixed together to form a complete tension frame. The tension frame edge strip is a hollow special-shaped pipe, the two ends of the special-shaped pipe are provided with blocking sleeves, the end portions of the adjacent tension frame edge strips at the four end corners are fixed together through a set of tensioners, the tensioners include two tension legs, the end heads fixed to the two tension legs are knobs, a spring for adjusting the extension and contraction of the tension frame is sleeved on the tension leg inserted into the corresponding blocking sleeve, and the knob portions of the two tension legs are fixed together to form a complete tension frame.

2. The dual membrane core assembly of claim 1, wherein, The tension frame edge strip in the double membrane assembly is a hollow special-shaped pipe, the cross section of the special-shaped pipe presents two symmetrical concave surfaces as membrane stretching concaves, one side of the two end faces in the longitudinal direction presents an arc surface, and the other side presents a flat surface, the two ends of the membrane stretching concaves present two arc protrusions, the two protrusions adjacent to the flat end face are front flanges, and the two protrusions adjacent to the arc end face are rear flanges.

3. The dual membrane core assembly of claim 1, wherein, The cross section of the thermal insulation profile used in the packaging frame includes a closed part with a cavity near the inner side and an open part near the outer side, and the open part is internally provided with a first clamping groove and a second clamping groove matched with the two levels of clamping positions on the tenon strip.

4. The dual membrane core assembly of claim 3, wherein, The inner side of the open part of the thermal insulation profile, i.e., the closed part, is lower than the outer side, and the outer side open end edge is turned outward to form a packaging end plate.

5. The dual membrane core assembly of claim 1, wherein, The cross section of the tenon strip includes a tenon strip body in the middle and two clamping plates with bifurcations on both sides, the outer side walls of each clamping plate are provided with a first tooth and a second tooth of two levels of clamping positions, and the first tooth and the second tooth of two levels of clamping positions are used to cooperate with the two levels of clamping grooves on the packaging frame.

6. The dual membrane core assembly of claim 3, wherein, The corner connector includes two support legs with the same shape as the cavity of the closed part of the thermal insulation profile used in the packaging frame, i.e., a first support leg and a second support leg, and the two support legs are fixed together at a right angle to form a corner connector.

7. The dual membrane core assembly of claim 3, wherein, The open part of the thermal insulation profile is further provided with an upwardly protruding film-tightening flange relative to the side plane on which the double-film assembly is installed.

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