CN213803544U - Heating device for glass doubling - Google Patents
Heating device for glass doubling Download PDFInfo
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- CN213803544U CN213803544U CN202022027989.9U CN202022027989U CN213803544U CN 213803544 U CN213803544 U CN 213803544U CN 202022027989 U CN202022027989 U CN 202022027989U CN 213803544 U CN213803544 U CN 213803544U
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Abstract
The utility model relates to a glass doubling device technical field specifically discloses a heating device for be used for glass doubling, including the vacuum bag, its characterized in that, the vacuum bag be equipped with heating device, the vacuum bag outer joint have a vacuum pump, heating device outer joint power. The device has simple and practical structure, can realize glass doubling heating, has very simple process, can completely save a high equipment cost doubling furnace or a high-pressure kettle, greatly reduces the processing cost, and can realize doubling processing in any place in other places besides factories.
Description
Technical Field
The invention relates to the technical field of glass deep processing, in particular to a heating device for glass doubling.
Background
Glass is a common building material, almost all buildings have glass, but the glass has a great defect, is easy to break and hurt people. The laminated glass overcomes the weakness of common glass, broken laminated glass fragments can still be adhered to the laminated film, and the surface of the glass can still be smooth and complete, so that personal injury is avoided to a great extent. Laminated glass has excellent performance and has attracted more and more attention. In countries such as europe and the united states, laminated glass has been used in most buildings because of its good safety and strong safety. In our country, laminated glass has also begun to enter our lives as economic and social progress has been made. Except that the security performance is good, doubling glass still has fine syllable-dividing effect, is difficult to accumulate the oil smoke, and these advantages all play an important role in daily life.
The mainstream laminated glass production process mainly comprises two types (dry method and wet method): the first method is a film method (commonly called dry method), the films are different, the high-pressure kettle is a PVB film, and the laminating furnace is an EVA film; the second is a grouting method (commonly called wet method), which refers to a production process of laminated glass, wherein two pieces of glass are surrounded by edge strips, and then liquid glue is filled into a gap between the two pieces of glass along a reserved glue filling opening and then the liquid glue is cured. The laminating process for glass processing can be applied in a large scale, and the quality improvement effect is mainly achieved by a dry laminating process, namely a laminating process of a film.
The PVB film method is to clamp the PVB film between two or more pieces of glass. Cutting and cutting the film (PVB is clamped between two or more pieces of glass) — "preheating and prepressing (the semi-finished product after laminating is preheated and prepressed to remove the air between the glass and the film) —" placing in a high-pressure autoclave, and pressing and laminating under the condition of high temperature and high pressure in the high-pressure autoclave to obtain the laminated glass.
The EVA film method is characterized in that two or more pieces of glass are internally supplemented with an EVA film through high-temperature vacuum pumping, bubbles are completely pumped away after the glass is melted at high temperature, and the laminated glass equipment adopts a vacuum heating principle.
1. The PVB film method needs the following equipment cost:
an autoclave is adopted: 380V
The investment is large, about 80-150 ten thousand.
The production equipment specifically comprises:
a constant temperature and humidity sheet-combining chamber, a preheating prepressing roller press, an air compressor, a glass autoclave,
manual work: about 5-7 people.
Power consumption amount: the power consumption is large, about hundreds of kilowatts.
Processing time: the one-pot time is about 5-7 hours.
The occupied area is large.
The production cost is high, and the field processing and production can not be realized.
2. The EVA film method needs the following equipment cost:
the glass laminating furnace is adopted, so that the investment is small, and is about 10-30 ten thousands.
The production equipment specifically comprises:
doubling furnace (with heating pipe, blower), vacuum machine and vacuum bag
Manual work: about 2-3 people.
Power consumption amount: the power consumption is low, 25-50 kilowatts.
Processing time: the one-furnace time is about 50-75 minutes.
The occupied area is smaller than that of the autoclave.
The production cost is lower than that of a PVB film method, and the field processing production can not be realized.
The lamination process of the film needs a large autoclave or heating equipment, has high cost and large power consumption, and needs a specially designed workshop space for processing due to the large equipment and the large used space. Under the circumstances, it is an urgent need of the existing laminating process to provide a novel simple glass laminating heating device.
Disclosure of Invention
The invention aims to provide a heating device for glass doubling, which aims to solve the problems of large equipment and special sites required in the background technology, omits high equipment cost, saves high electric quantity loss, saves the space requirements of fixed sites and special equipment workshops, and can be processed and produced at different places or even on site.
In order to achieve the purpose, the invention provides the following technical scheme:
the heating device for glass doubling comprises a vacuum bag and is characterized in that the vacuum bag is provided with a heating device, a vacuum pump is connected outside the vacuum bag, and a power supply is connected outside the heating device.
The heating device is a plane heating sheet, and the heating temperature is only 150 ℃ at most.
The heating device is a heating device for heating the graphene heating film.
The vacuum bag is a silica gel vacuum bag, and the temperature resistance requirement reaches 250 ℃.
The vacuum bag be equipped with all around and open or compress tightly the trench of matching, realize that two silica gel vacuum bags open or sticis to close, the corner edge of vacuum bag on be equipped with air pump hole or power supply pin hole, the centre is equipped with the heating region.
The air pump or the power supply lead hole is arranged on the periphery of the heating area of the vacuum bag.
And a temperature controller is connected outside the heating device for heating the graphene heating film.
The graphene heating film is a heating film which can work when 220v alternating current is switched on and has the heating power of 1200W per square meter.
The temperature controller detects the heating temperature according to the thermal resistor, and controls the set temperature value by using the temperature controller, thereby realizing the control of the heating temperature.
The heating device in the vacuum bag is sequentially horizontally stacked with the temperature-resistant exhaust net, the first glass sheet, the EVA film, the second glass sheet and the temperature-resistant exhaust net.
By adopting the device, the following doubling processing technology can be realized
The method comprises the following steps:
s1, preparing a vacuum bag, putting a heating device of the vacuum bag, two pieces of glass, an EVA (or PVC) film clamped between the two pieces of glass, and 2 pieces of temperature-resistant exhaust nets;
s2, the following preparation is made:
a heating device is flatly laid on the lower vacuum bag, a temperature-resistant exhaust net is flatly laid on the heating device, and a glass sheet I, an EVA (ethylene vinyl acetate) film and a glass sheet II are sequentially stacked on the upper surface of the temperature-resistant net in a flatwise manner; covering a temperature-resistant exhaust net on the second glass sheet, closing the upper vacuum bag, pressing a sealing strip of the vacuum bag, and simultaneously inserting a vacuum pump to be connected with an exhaust port of the vacuum bag;
s3, connecting the heating device with the power supply, connecting the vacuum pump with the power supply, realizing side vacuum in the vacuum bag and heating the contact glass and the film by the heating device in the bag, realizing the film bonding between the two pieces of glass, and realizing the laminating process.
In the step S3, firstly, a vacuum pump performs cold pumping for 5 minutes at normal temperature, air in the silica gel bag is evacuated, and when the vacuum value reaches 1x10-1 Pa, the heating device is heated to 80-90 ℃ and the holding time is 20-30 minutes; then continuously heating to the surface temperature of the glass of 110-130 ℃ and keeping the time for 45-60 minutes; and then stopping heating, taking out the glass when the temperature of the glass is reduced to below 60 ℃, and vacuumizing the glass by a vacuum pump until the processed laminated glass is taken out.
The vacuum bag sealing strip is equipped with all around and opens or compresses tightly the trench of matching, realizes that two silica gel vacuum bags open or sticiss to close, when opening, puts into heating device, the glass and the film that need process, covers well and closes, sticiss the trench, during the evacuation, realizes leak protection gas, the corner edge of vacuum bag on be equipped with air pump hole or power pin hole, the centre is equipped with the heating region.
Compared with the prior art, the invention has the beneficial effects that:
1. the device has simple and practical structure, realizes glass heating and laminating, has very simple process, completely saves a high-cost laminating furnace or a high-pressure kettle, and greatly reduces the processing cost.
2. The device saves high-power-consumption equipment, greatly saves the loss of electric quantity, realizes the direct heating of the heating surface and the glass, improves the processing time, saves the electric quantity, further saves the processing cost, adopts 220V voltage, and is safe and reliable;
3. the silica gel bag and the heating equipment in the silica gel bag are heating devices which adopt the graphene heating film to generate heat, the heating devices can realize a flaky flexible structure, are convenient to carry, are not limited by special processing space places, can be processed on site even, and are very convenient and practical.
4. The heating device adopting the graphene heating film to generate heat can realize a flaky soft structure, after vacuumizing, the heating film can be tightly attached to the glass surface to be directly heated, the heating effect and the heating quality are improved, the heating is uniform, the heating is fast, in addition, the heating can be tightly attached to the glass along with the deformation of the shape of the glass, and the laminating process of the special-shaped glass can be simply realized.
5. The periphery of the glass is provided with a temperature-resistant exhaust net, so that exhaust is effectively realized, effective vacuumizing is realized, effective bubble discharge is achieved, and the quality of glue among the glass is effectively guaranteed.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the present invention, with parts of the equipment disassembled;
fig. 3 is a schematic side view of the groove structure of the part a of the silicone vacuum bag in fig. 2.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
Example 1 doubling of two sheets of sheet glass
Referring to the attached drawings, fig. 1 to 3, a heating device for glass doubling comprises a vacuum bag 1, and is characterized in that the vacuum bag 1 is provided with a heating device 2, a vacuum pump 7 is connected outside the vacuum bag 1, and a power supply 6 is connected outside the heating device 2.
The heating device is a plane heating sheet, and the heating temperature is only 150 ℃ at most.
The heating device is a heating device which adopts the graphene heating film to generate heat.
The vacuum bag is a silica gel vacuum bag, and the temperature resistance requirement reaches 250 ℃.
The vacuum bag be equipped with all around and open or compress tightly the trench of matching, realize that two silica gel vacuum bags open or sticis to close, the corner edge of vacuum bag on be equipped with air pump hole or power supply pin hole, the centre is equipped with the heating region.
The air pump or the power supply lead hole is arranged on the periphery of the heating area of the vacuum bag.
And a temperature controller 8 is connected outside the heating device for heating the graphene heating film.
The graphene heating film is a heating film which can work when 220v alternating current is switched on and has the heating power of 1200W per square meter.
The temperature controller 8 detects the heating temperature according to the thermal resistor, and controls the set temperature value by using the temperature controller, thereby realizing the control of the heating temperature.
A heating device 2 in the vacuum bag 1 is sequentially horizontally placed and stacked with a temperature-resistant exhaust net 4, a first glass sheet 31, an EVA (ethylene vinyl acetate) film 5, a second glass sheet 32 and the temperature-resistant exhaust net 4.
By adopting the device, the following doubling processing technology can be realized:
s1, preparing a vacuum bag 1, placing a heating device 2 of the vacuum bag 1, two pieces of glass, an EVA (or PVC) film 5 sandwiched between the two pieces of glass, and 2 pieces of temperature-resistant exhaust nets 4;
s2, the following preparation is made:
a heating device 2 is flatly laid on the lower vacuum bag, a temperature-resistant exhaust net 4 is flatly laid on the heating device, and a first glass sheet 31, an EVA (ethylene vinyl acetate) film 5 and a second glass sheet 32 are sequentially stacked on the upper surface of the temperature-resistant net; covering a temperature-resistant exhaust net 4 on the second glass sheet, closing the upper layer vacuum pumping bag, pressing a sealing strip of the vacuum pumping bag, and simultaneously inserting a vacuum pump to be connected with an exhaust port of the vacuum bag;
s3, the heating device 2 is connected with the power supply 6, the vacuum pump 7 is connected with the power supply 6, the vacuum bag is vacuumized, the heating device in the bag directly heats the contact glass and the film, the adhesion of the film between the two pieces of glass is realized, and the laminating process is realized.
In step S3, firstly, a vacuum pump performs cold pumping for 5 minutes at normal temperature, air in the silica gel bag is evacuated, and when the vacuum value reaches 1x10-1 Pa, the heating device is heated to 80-90 ℃ and the holding time is 20-30 minutes; then continuously heating to the surface temperature of the glass of 110-130 ℃ and keeping the time for 45-60 minutes; and then stopping heating, taking out the glass when the temperature of the glass is reduced to below 60 ℃, and vacuumizing the glass by a vacuum pump until the processed laminated glass is taken out.
The air pump or the power supply lead hole is arranged at the periphery of the heating area of the vacuum bag, so that the vacuum pumping is effectively realized, and the vacuum pumping cannot be influenced by the heating device. The periphery of the glass is provided with the temperature-resistant exhaust net, so that exhaust is effectively realized, effective vacuumizing is realized, effective bubble discharge is realized, and the quality of glue among the glass is effectively ensured.
The heating device for heating the graphene heating film works when being switched on with 220v alternating current, the heating power per square meter is 120W, the heating temperature is detected by adopting a thermal resistor, and the temperature controller 8 is used for setting a temperature value, so that the heating temperature is controlled. The principle of temperature control belongs to the prior art. Heating temperature is controlled below 150 degrees, and the EVA or PVB glue realizes bonding glass at 105 degrees, and the silica gel vacuum bag is not influenced by the temperature, and glass is not influenced yet, and the welding that meets heat is only the film, and in addition, in the heating process, the aspiration pump is in controlling the vacuum always, produces the negative pressure, realizes gluing the bubble in and discharges, realizes gluing simultaneously and glass's good bonding, in the silica gel vacuum bag, the heat is concentrated, and the loss is little.
Example 2 double-sided processing of two flat, identical profiles or curved surfaces
The processing sequence and the temperature of the device are consistent with those of the embodiment 1, when the device is vacuumized, the heating device which generates heat by the graphene heating film is adopted, the flaky flexible structure can be realized, after the device is vacuumized, the heating film can be directly heated by clinging to a glass surface of an abnormal or curved surface, and the processing of the glass interlayer adhesive of the abnormal or curved surface is realized.
The doubling processing technology adopting the device achieves the following cost according to calculation:
the investment is minimum, about 1-5 ten thousand.
Production equipment: vacuum pump, vacuum bag and heating film
Manual work: about 2-3 people.
Power consumption amount: the power consumption is very low, 6-10 kilowatts.
Processing time: the time is about 50-75 minutes.
Compared with the processing equipment cost of the background art, the processing cost is greatly reduced, the time and the labor are saved, the space is saved, and the rubber clamping processing can be realized in any place.
The processing technology of the invention can be realized as follows:
1. the device has simple and practical structure, realizes the simple glass laminating process, completely saves a high-cost laminating furnace or a high-pressure kettle, and greatly reduces the processing cost.
2. The device saves high-power-consumption equipment, greatly saves the loss of electric quantity, realizes the direct heating of the heating surface and the glass, improves the processing time, saves the electric quantity, further saves the processing cost, adopts 220V, and is safe and reliable;
3. the silica gel bag and the heating equipment in the silica gel bag are heating devices which adopt the graphene heating film to generate heat, the heating devices can realize a flaky flexible structure, are convenient to carry, are not limited by special processing space places, can be processed on site even, and are very convenient and practical.
4. The heating device adopting the graphene heating film to generate heat can realize a flaky soft structure, after vacuumizing, the heating film can be tightly attached to the glass surface to be directly heated, the heating effect and quality are improved, heating is uniform, in addition, the heating film can also be deformed along with the shape of glass to be tightly attached to the glass surface to be heated, and the laminating process of the special-shaped glass can be simply realized.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. The heating device for glass doubling comprises a vacuum bag and is characterized in that the vacuum bag is provided with a heating device, a vacuum pump is connected outside the vacuum bag, a power supply is connected outside the heating device, the heating device is a plane heating sheet, and the highest heating temperature of the heating device is only 150 ℃.
2. The heating device for a glass clip according to claim 1, characterized in that: the heating device is a heating device for heating the graphene heating film.
3. The heating device for a glass clip according to claim 2, characterized in that: the vacuum bag is a silica gel vacuum bag, and the temperature resistance requirement reaches 250 ℃.
4. The heating device for a glass clip according to claim 3, characterized in that: the vacuum bag be equipped with all around and open or compress tightly the trench of matching, realize that two silica gel vacuum bags open or sticis to close, the corner edge of vacuum bag on be equipped with air pump hole or power supply pin hole, the centre is equipped with the heating region.
5. The heating apparatus according to claim 4, wherein the suction pump or the power supply lead hole is provided at a periphery of the heating region of the vacuum bag.
6. The heating device for the glass doubling according to claim 2, wherein a temperature controller is connected to the outside of the heating device for heating the graphene heating film.
7. The heating device for the glass cement according to claim 6, wherein the graphene thermal film is a 1200W thermal film per square meter which is operated by switching on 220V alternating current.
8. The heating apparatus for a glass insert as set forth in claim 7, wherein the temperature controller is a temperature controller for detecting a heating temperature based on the thermal resistance and controlling the set temperature value using the temperature controller to control the heating temperature.
9. The heating device for glass doubling according to claim 8, wherein the heating device in the vacuum bag is horizontally stacked with a temperature-resistant exhaust net, a first glass sheet, an EVA film, a second glass sheet, and a temperature-resistant exhaust net in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022027989.9U CN213803544U (en) | 2020-09-16 | 2020-09-16 | Heating device for glass doubling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022027989.9U CN213803544U (en) | 2020-09-16 | 2020-09-16 | Heating device for glass doubling |
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| CN213803544U true CN213803544U (en) | 2021-07-27 |
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| CN202022027989.9U Active CN213803544U (en) | 2020-09-16 | 2020-09-16 | Heating device for glass doubling |
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