阅读说明：本技术 一种夹层玻璃制备设备及其方法 (Laminated glass preparation equipment and method ) 是由 赵芳红 张延芳 户云婷 傅国英 朱治国 张保军 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种夹层玻璃制备设备及其方法,该夹层玻璃制备设备用于对合片玻璃进行加工以形成夹层玻璃,其中,合片玻璃包括层叠设置的多层玻璃片以及涂设于相邻两层玻璃片之间的胶层,夹层玻璃制备设备包括：工艺釜,抽真空装置,加热装置和加压装置,工艺釜具有中空内腔且一侧具有开口,中空内腔用于放置合片玻璃,在开口设置有釜门,釜门用于密封开口；抽真空装置用于抽取中空内腔中的气体,以使中空内腔达到预设真空度；加热装置用于对中空内腔进行加热；加压装置用于向中空内腔通入气体,以升高中空内腔的气压。本申请能够提高夹层玻璃制备设备的适用性和对合片玻璃的排气效果,从而保证夹层玻璃的产品质量。(The invention discloses a laminated glass preparation device and a method thereof, the laminated glass preparation device is used for processing laminated glass to form the laminated glass, wherein the laminated glass comprises a plurality of layers of glass sheets which are arranged in a laminated manner and a glue layer coated between two adjacent layers of glass sheets, and the laminated glass preparation device comprises: the glass laminating machine comprises a process kettle, a vacuumizing device, a heating device and a pressurizing device, wherein the process kettle is provided with a hollow inner cavity, an opening is formed in one side of the process kettle, the hollow inner cavity is used for placing laminated glass, and a kettle door is arranged at the opening and used for sealing the opening; the vacuumizing device is used for sucking gas in the hollow inner cavity so as to enable the hollow inner cavity to reach a preset vacuum degree; the heating device is used for heating the hollow inner cavity; the pressurizing device is used for introducing gas into the hollow inner cavity so as to increase the gas pressure of the hollow inner cavity. The application can improve the applicability of laminated glass preparation equipment and the exhaust effect of the laminated glass, thereby ensuring the product quality of the laminated glass.)

1. The utility model provides a laminated glass preparation equipment for close piece glass and process in order to form laminated glass, wherein, close piece glass including the multilayer glass piece that stacks up the setting and scribble the glue film of establishing between adjacent two-layer glass piece, its characterized in that, laminated glass preparation equipment includes:

the technical kettle is provided with a hollow inner cavity, an opening is formed in one side of the technical kettle, the hollow inner cavity is used for placing the laminated glass, a kettle door is arranged on the opening, and the kettle door is used for sealing the opening;

the vacuumizing device is used for extracting gas in the hollow inner cavity so as to enable the hollow inner cavity to reach a preset vacuum degree;

a heating device for heating the hollow inner cavity;

and the pressurizing device is used for introducing gas into the hollow inner cavity so as to increase the gas pressure of the hollow inner cavity.

2. The laminated glass preparation apparatus according to claim 1, wherein the evacuation device comprises a plurality of evacuation ports, and the evacuation ports are distributed on the peripheral wall of the process kettle at intervals and in a surrounding manner and are communicated with the hollow inner cavity.

3. The laminated glass manufacturing apparatus according to claim 1, wherein a change-over valve is connected to the process kettle, the change-over valve being connected to the hollow inner chamber, the vacuum evacuation device, and the pressurization device, respectively, the change-over valve having a first station and a second station, the change-over valve communicating the hollow inner chamber with the vacuum evacuation device when the change-over valve is in the first station, and communicating the hollow inner chamber with the pressurization device when the change-over valve is in the second station.

4. The laminated glass manufacturing apparatus according to claim 3, further comprising:

a controller electrically connected to the vacuum pumping device, the heating device, the pressurizing device, and the switching valve, respectively;

the temperature sensor is arranged in the hollow inner cavity and electrically connected with the controller, and is used for monitoring the temperature information of the hollow inner cavity;

the pressure sensor is arranged in the hollow inner cavity and is electrically connected with the controller, and the pressure sensor is used for monitoring pressure information of the hollow inner cavity;

the controller can respectively control the vacuum pumping device, the pressurizing device, the heating device and the conversion valve to work according to the temperature information and the pressure information.

5. The laminated glass manufacturing apparatus according to any one of claims 1 to 4, further comprising a support frame and a positioning member disposed on the support frame, wherein an upper surface of the support frame is used for placing the laminated glass, and the positioning member is used for preventing the laminated glass from moving relative to the support frame.

6. The laminated glass manufacturing apparatus according to claim 5, wherein the positioning member includes a vertical portion and a horizontal portion, one end of the vertical portion is connected to the upper surface of the support frame, the other end of the vertical portion is slidably connected to one end of the horizontal portion, so that the horizontal portion can move in a vertical direction with respect to the vertical portion, and a lower surface of the horizontal portion is used for abutting against the upper surface of the laminated glass.

7. The laminated glass manufacturing apparatus according to claim 6, wherein a lower surface of the horizontal portion is provided with a cushion pad.

8. The laminated glass manufacturing apparatus according to claim 7, wherein an upper surface of the support frame is a hollowed structure.

9. The laminated glass manufacturing apparatus according to any one of claims 1 to 4, wherein the heating device comprises a first heating device and a second heating device, the first heating device is disposed on the processing kettle and used for heating the hollow inner cavity, and the second heating device is disposed on the support frame and used for preheating the laminated glass.

10. The laminated glass manufacturing apparatus according to claim 9, wherein the heating device is a quartz heating tube.

11. The laminated glass manufacturing apparatus according to claim 10, wherein a circulation fan is provided in the hollow inner chamber, and the circulation fan is configured to accelerate the flow of the air in the hollow inner chamber.

12. The laminated glass manufacturing apparatus according to any one of claims 1 to 4, wherein the pressurizing device is a gas compressor, and a compression port of the gas compressor communicates with the hollow inner cavity.

13. A laminated glass production method applied to the laminated glass production apparatus according to any one of claims 1 to 12, characterized by comprising the steps of:

placing the laminated glass in a hollow inner cavity of the technological kettle, and closing a kettle door of the technological kettle;

extracting gas in the hollow inner cavity until the hollow inner cavity reaches a preset vacuum degree;

preheating the laminated glass so as to preliminarily bond and position the laminated glass;

pressurizing the hollow inner cavity to a preset pressure, heating the hollow inner cavity to a preset temperature at the same time so as to melt the adhesive layer in the laminated glass, and keeping the laminated glass at the preset pressure and the preset temperature for a preset time period;

and cooling to form the laminated glass.

14. The method for preparing laminated glass according to claim 13, wherein before the step of placing the laminated glass in the hollow inner cavity of the process kettle, the method further comprises the following steps:

taking out the support frame from the hollow inner cavity, and placing the support frame in a preset environment;

paving a protective film on the upper surface of the support frame, sequentially stacking a plurality of glass sheets on the protective film, and respectively coating adhesive layers between two adjacent glass sheets to form the laminated glass;

positioning the laminated glass;

and placing the support frame with the laminated glass into the hollow inner cavity.

15. The method for preparing laminated glass according to claim 13, wherein the preheating the laminated glass comprises the following steps:

heating the corner of the laminated glass to a first preset temperature, and keeping for a first preset time period;

and heating the whole piece of the laminated glass to a second preset temperature, and keeping the temperature for a second preset time period.

16. The process for producing a laminated glass according to claim 13, wherein the predetermined degree of vacuum is less than 10 pa.

17. The method for producing laminated glass according to claim 13, wherein the predetermined pressure is 1Mpa to 1.5Mpa, and the predetermined temperature is 100 ℃ to 150 ℃.

18. The method for preparing laminated glass according to claim 15, wherein the first predetermined temperature is 50 ℃ to 60 ℃ and the second predetermined temperature is 60 ℃ to 100 ℃.

Technical Field

The application relates to the technical field of glass preparation, in particular to a laminated glass preparation device and a method thereof.

Background

The laminated glass comprises two or more glass sheets and an organic polymer intermediate film clamped between the two adjacent glass sheets, and the glass sheets and the intermediate film are permanently bonded into a whole through high-temperature prepressing (or vacuumizing) and high-temperature high-pressure process treatment. The laminated glass is widely applied to the fields of buildings, vehicles, ships, aviation and the like.

The process of the laminated glass comprises the following steps: laminating, prepressing, exhausting, hot-pressing, bonding and the like. The laminated glass is characterized in that the laminating stage is used for laminating two or more layers of glass sheets and an intermediate film clamped between the two adjacent layers of glass sheets to form laminated glass, the prepressing and exhausting stage is used for extracting gas in the laminated glass to enable the laminated glass to form bubble-free and transparent laminated glass in the hot-press bonding process, and the hot-press bonding is used for bonding the glass sheets and the intermediate film in the exhausted laminated glass into an integral structure in a high-temperature and high-pressure environment.

In the prior art, the prepressing exhaust comprises two modes of hot extrusion exhaust and pressure reduction exhaust, wherein the hot extrusion exhaust needs to preheat and extrude laminated glass by adopting a preheating roller press to discharge gas in the laminated glass, and then the periphery of the extruded laminated glass is coated with a hemming agent while the laminated glass is hot, but the hemming agent belongs to an inflammable product and needs to be strictly controlled in dosage, and the hot extrusion exhaust mode is only suitable for processing laminated glass with a plane structure and cannot be suitable for processing laminated glass with a curved surface structure. The vacuum exhaust method needs to put the laminated glass into a vacuum bag and make the vacuum bag fit with the outer surface of the laminated glass, then an exhaust opening is arranged on the vacuum bag, the exhaust opening is communicated with the gap between the multilayer glass sheets, and the gas in the laminated glass can be exhausted through the exhaust opening.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides laminated glass preparation equipment and a method thereof, which can improve the applicability of the laminated glass preparation equipment and the exhaust effect of laminated glass, thereby ensuring the product quality of the laminated glass.

In order to solve the above technical problem, in a first aspect, the present invention provides a laminated glass manufacturing apparatus for processing laminated glass to form laminated glass, where the laminated glass includes multiple glass sheets stacked one on another and a glue layer coated between two adjacent glass sheets, and the laminated glass manufacturing apparatus includes:

the technical kettle is provided with a hollow inner cavity, one side of the technical kettle is provided with an opening, the hollow inner cavity is used for placing laminated glass, and the opening is provided with a kettle door which is used for sealing the opening;

the vacuumizing device is used for extracting gas in the hollow inner cavity so as to enable the hollow inner cavity to reach a preset vacuum degree;

the heating device is used for heating the hollow inner cavity;

and the pressurizing device is used for introducing gas into the hollow inner cavity so as to increase the air pressure of the hollow inner cavity.

According to the laminated glass preparation equipment provided by the invention, the laminated glass is accommodated in the hollow inner cavity of the process kettle, and the opening of the process kettle is sealed by the kettle door, so that the laminated glass is in a sealed environment, when the gas in the hollow inner cavity is pumped by the vacuumizing device to enable the hollow inner cavity to reach the preset vacuum degree, the hollow inner cavity is in a vacuum state, namely the laminated glass is in the vacuum environment, and the gas in the laminated glass flows to the hollow inner cavity through the periphery of the laminated glass due to the fact that the gas pressure in the laminated glass is greater than that of the hollow inner cavity, so that the exhaust speed and the exhaust effect of the gas in the laminated glass are improved. In addition, the hollow inner cavity is heated by the heating device, so that the temperature of the laminated glass after exhausting is increased, the glue layer in the laminated glass is completely dissolved, the hollow inner cavity is pressurized by the pressurizing device, and the laminated glass after exhausting is in a pressurized state, so that the glass sheet and the glue layer in the laminated glass are bonded into an integral structure and form the laminated glass. Therefore, the laminated glass can complete the exhaust process in the process kettle, and the laminated glass can be formed without moving the exhausted laminated glass from the exhaust station to the hot-pressing bonding station, so that the factors influencing the quality in the process of machining the laminated glass are reduced, and the product quality of the laminated glass is effectively ensured.

In a possible implementation manner of the first aspect, the vacuum pumping device includes a plurality of pumping ports, and the plurality of pumping ports are distributed on the circumferential wall of the process kettle at intervals and in a surrounding manner and are communicated with the hollow inner cavity. Therefore, the plurality of pumping holes are formed through the vacuumizing device, so that the gas in the hollow inner cavity of the process kettle can be uniformly pumped out.

In a possible implementation manner of the first aspect, the process kettle is connected with a switching valve, the switching valve is respectively connected with the hollow inner cavity, the vacuumizing device and the pressurizing device, the switching valve has a first station and a second station, when the switching valve is located at the first station, the switching valve enables the hollow inner cavity to be communicated with the vacuumizing device, and when the switching valve is located at the second station, the switching valve enables the hollow inner cavity to be communicated with the pressurizing device.

Therefore, the hollow inner cavity can be communicated with the vacuumizing device or the pressurizing device by switching different stations of the switching valve, so that the purpose of changing the air pressure of the hollow inner cavity is realized, and meanwhile, the connecting structure of the process kettle, the vacuumizing device and the pressurizing device can be simplified.

In a possible implementation manner of the first aspect, the laminated glass manufacturing apparatus further includes:

the controller is respectively and electrically connected with the vacuumizing device, the heating device, the pressurizing device and the conversion valve;

the temperature sensor is arranged in the hollow inner cavity and electrically connected with the controller, and the temperature sensor is used for monitoring the temperature information of the hollow inner cavity;

the pressure sensor is arranged in the hollow inner cavity and electrically connected with the controller, and the pressure sensor is used for monitoring pressure information of the hollow inner cavity;

the controller can respectively control the vacuum device, the pressurizing device, the heating device and the conversion valve to work according to the temperature information and the pressure information.

Therefore, the intelligent degree of the laminated glass preparation equipment is improved.

In a possible implementation manner of the first aspect, the laminated glass manufacturing apparatus further includes a support frame and a positioning member disposed on the support frame, an upper surface of the support frame is used for placing the laminated glass, and the positioning member is used for preventing the laminated glass from moving relative to the support frame.

From this, through set up the setting element on the support frame, can enough prevent to close the removal of piece glass at the upper surface of support frame, can also prevent to constitute the slip between a plurality of glass pieces that close piece glass to the stability that closes piece glass and place has been improved.

In a possible implementation manner of the first aspect, the positioning element includes a vertical portion and a horizontal portion, one end of the vertical portion is connected to the upper surface of the support frame, the other end of the vertical portion is slidably connected to one end of the horizontal portion, so that the horizontal portion can move in the vertical direction relative to the vertical portion, and the lower surface of the horizontal portion is used for abutting against the upper surface of the sheet combining glass.

Based on the structure of above-mentioned setting element, can correspond according to the thickness of closing piece glass and adjust the position of horizontal part on vertical portion to make the setting element can be applicable to the location of the piece glass that closes of different thickness.

In a possible implementation of the first aspect, the lower surface of the horizontal portion is provided with a cushion pad.

Therefore, the lower surface of the horizontal part is abutted against the laminated glass through the buffering part, and the buffering of the buffering pad can avoid rigid abutment between the upper surface of the laminated glass and the lower surface of the horizontal part, so that the aim of protecting the laminated glass is fulfilled.

In a possible implementation manner of the first aspect, the upper surface of the support frame is of a hollow structure, so that the heating airflow can directly act on the lower surface of the laminated glass through the upper surface of the support frame.

In a possible implementation manner of the first aspect, the heating device comprises a first heating device and a second heating device, the first heating device is arranged on the process kettle and used for heating the hollow inner cavity, and the second heating device is arranged on the support frame and used for preheating the laminated glass.

In a possible implementation manner of the first aspect, the heating device is a quartz heating tube.

Therefore, the heating device is set as the quartz heating pipe, so that the heating speed and the heating effect of the laminated glass can be improved, and the service life of the laminated glass preparation equipment can be prolonged.

In a possible implementation manner of the first aspect, a circulating fan is arranged in the hollow inner cavity, and the circulating fan is used for accelerating the air flow in the hollow inner cavity.

Therefore, the heating effect of the second heating device on the hollow inner cavity can be improved by improving the flow velocity of the air flow in the hollow inner cavity.

In a possible implementation manner of the first aspect, the pressurizing device is a gas compressor, and a compression port of the gas compressor is communicated with the hollow inner cavity.

Therefore, the air compressor can compress air and lead the air into the hollow inner cavity through the compression port so as to improve the pressure of the hollow inner cavity

In a second aspect, the present invention also provides a laminated glass manufacturing method applied to the laminated glass manufacturing apparatus of any one of the first aspects, including the steps of:

placing the laminated glass in a hollow inner cavity of the technological kettle, and closing a kettle door of the technological kettle;

pumping the gas in the hollow cavity until the hollow cavity reaches a preset vacuum degree;

preheating the laminated glass so as to preliminarily bond and position the laminated glass;

pressurizing the hollow inner cavity to a preset pressure, heating the hollow inner cavity to a preset temperature at the same time so as to melt the adhesive layer in the laminated glass, and keeping the laminated glass at the preset pressure and the preset temperature for a preset time period;

and cooling to form the laminated glass.

According to the laminated glass preparation method provided by the invention, as the laminated glass preparation equipment of the first aspect is adopted, the laminated glass preparation method is applied to the laminated glass preparation equipment, the applicability of the laminated glass preparation equipment and the exhaust effect of the laminated glass can be improved, and the product quality of the laminated glass is ensured.

In a possible implementation manner of the second aspect, before the laminated glass is placed in the hollow inner cavity of the process kettle, the method further comprises the following steps:

taking out the support frame from the hollow inner cavity, and placing the support frame in a preset environment;

laying a protective film on the upper surface of the support frame, sequentially stacking a plurality of glass sheets on the protective film, and respectively coating adhesive layers between two adjacent glass sheets to form laminated glass;

positioning the laminated glass;

and putting the support frame with the laminated glass into the hollow inner cavity.

Therefore, the method can enable the laminated glass to be installed and positioned in a preset environment outside the process kettle, and the convenience of the installation of the laminated glass is improved.

In a possible implementation manner of the second aspect, the preheating of the laminated glass includes the following steps:

heating the corner of the laminated glass to a first preset temperature, and keeping for a first preset time period;

and heating the whole laminated glass to a second preset temperature and keeping the temperature for a second preset time period.

Therefore, the positioning of the laminated glass can be enhanced, and the preliminary bonding of the laminated glass can be completed.

In a possible implementation manner of the second aspect, the preset vacuum degree is less than 10pa so as to improve the exhausting effect of the laminated glass.

In a possible implementation manner of the second aspect, the preset pressure is 1Mpa-1.5Mpa, so that the preset temperature of the laminated glass in a pressed state is 100 ℃ to 150 ℃, so as to increase the temperature of the laminated glass and accelerate the dissolution speed of the adhesive layer.

In a possible implementation manner of the second aspect, the first preset temperature is 50 ℃ to 60 ℃, and the second preset temperature is 60 ℃ to 100 ℃.

From this, can realize the local softening of glue film for the glue film that softens bonds with the glass piece, can also reduce the whole influence to closing piece glass.

Drawings

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

FIG. 1 is a schematic structural view of an apparatus for producing laminated glass according to an embodiment of the present invention;

FIG. 2 is a schematic view of the gas velocity of laminated glass during the evacuation process of laminated glass by the laminated glass manufacturing apparatus according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a support frame in a laminated glass manufacturing apparatus according to an embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a cross-sectional view of one of the processing vessels in the laminated glass manufacturing apparatus according to the embodiment of the present invention;

FIG. 6 is a second sectional view of a processing tank of the laminated glass manufacturing apparatus according to the embodiment of the present invention;

FIG. 7 is a process flow diagram of a method of making laminated glass according to an embodiment of the present invention;

FIG. 8 is a process flow diagram of pre-heating laminated glass according to an embodiment of the present invention;

FIG. 9 is a flow chart of a process for placing laminated glass into a processing tank according to an embodiment of the present invention.

Description of reference numerals:

100-laminated glass preparation equipment; 110-a process kettle; 111-hollow lumen; 112-a kettle door; 120-vacuum pumping device; 130-a pressurizing device; 140-a switching valve; 151-first heating means; 151 a-quartz heating tube; 152-a second heating device; 160-a support frame; 161-a positioning member; 162-a support plate; 163-support column; 1611-horizontal section; 1612-vertical section; 170-circulating fan; 200-laminating glass; 201-isovelocity line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The laminated glass comprises two or more glass sheets and an organic polymer intermediate film clamped between the two adjacent glass sheets, and the glass sheets and the intermediate film are permanently bonded into a whole through high-temperature prepressing (or vacuumizing) and high-temperature high-pressure process treatment. The laminated glass is widely applied to the fields of buildings, vehicles, ships, aviation and the like.

The process of the laminated glass comprises the following steps: laminating, prepressing, exhausting, hot-pressing, bonding and the like. The laminated glass is characterized in that the laminating stage is used for laminating two or more layers of glass sheets and an intermediate film clamped between the two adjacent layers of glass sheets to form laminated glass, the prepressing and exhausting stage is used for extracting gas in the laminated glass to enable the laminated glass to form bubble-free and transparent laminated glass in the hot-press bonding process, and the hot-press bonding is used for bonding the glass sheets and the intermediate film in the exhausted laminated glass into an integral structure in a high-temperature and high-pressure environment.

In the prior art, the prepressing exhaust comprises two modes of hot extrusion exhaust and pressure reduction exhaust, wherein the hot extrusion exhaust needs to preheat and extrude laminated glass by adopting a preheating roller press to discharge gas in the laminated glass, and then the periphery of the extruded laminated glass is coated with a hemming agent while the laminated glass is hot, but the hemming agent belongs to an inflammable product and needs to be strictly controlled in dosage, and the hot extrusion exhaust mode is only suitable for processing laminated glass with a plane structure and cannot be suitable for processing laminated glass with a curved surface structure. The vacuum exhaust method needs to put the laminated glass into a vacuum bag and make the vacuum bag fit with the outer surface of the laminated glass, then an exhaust opening is arranged on the vacuum bag, the exhaust opening is communicated with the gap between the multilayer glass sheets, and the gas in the laminated glass can be exhausted through the exhaust opening.

In view of this point, the embodiment of the invention provides laminated glass preparation equipment and a method thereof, which can improve the applicability of the laminated glass preparation equipment and the exhaust effect of laminated glass, thereby ensuring the product quality of the laminated glass.

The laminated glass manufacturing apparatus and the method thereof will be described in detail below by way of specific examples:

example one

The embodiment of the application provides a laminated glass manufacturing device 100, and the laminated glass manufacturing device 100 is used for processing laminated glass 200 to form laminated glass, wherein the laminated glass 200 comprises a plurality of glass sheets which are arranged in a stacked mode and a glue layer coated between two adjacent glass sheets.

As shown in fig. 1, the laminated glass manufacturing apparatus 100 includes: the glass sheet laminating device comprises a process kettle 110, a vacuumizing device 120, a heating device and a pressurizing device 130, wherein the process kettle 110 is provided with a hollow inner cavity 111, an opening is formed in one side of the process kettle, the hollow inner cavity 111 is used for placing laminated glass 200, a kettle door 112 is arranged at the opening, and the kettle door 112 is used for sealing the opening; the vacuum pumping device 120 is used for pumping the gas in the hollow cavity 111 so as to make the hollow cavity 111 reach a preset vacuum degree; the heating device is used for heating the hollow inner cavity 111; the pressurization device 130 is used for introducing gas into the hollow cavity 111 to increase the gas pressure in the hollow cavity 111.

In this embodiment, the processing vessel 110 can be capable of withstanding both low pressure, e.g., 0.1Pa in the hollow cavity 111 of the processing vessel 110, i.e., a state close to vacuum, and high pressure, e.g., 15 standard atmospheres, i.e., 1.5MPa, in the hollow cavity 111 of the processing vessel 110. In addition, as shown in fig. 1, the process kettle 110 may be a metal tank, and in other embodiments, the process kettle 110 may also be a metal rectangular parallelepiped structure, but is not limited thereto, for example, the process kettle 110 is a glass fiber reinforced plastic cylinder.

Since the laminated glass 200 is placed in the hollow cavity 111 through the opening of the processing kettle 110, in order to place the laminated glass 200 in the hollow cavity 111, the opening of the processing kettle 110 is disposed on the sidewall of the processing kettle 110, but not limited thereto, for example, the opening of the processing kettle 110 is disposed on the top of the processing kettle 110.

The opening of the vessel door 112 may be sealed in various ways, for example, one side of the vessel door 112 may be hinged to a side wall of the process vessel 110 and may be rotated about the hinge, thereby sealing or opening the opening of the process vessel 110 by rotating the vessel door 112. For another example, the tank door 112 may be directly fastened to the opening of the processing tank 110. But is not limited thereto.

The vacuum pumping device 120 can pump the gas in the hollow inner cavity 111 of the process kettle 110 and make the gas reach a preset vacuum degree, even if the hollow inner cavity 111 is in a vacuum state, when the hollow inner cavity 111 is in the vacuum state, because the laminated glass 200 is placed in the hollow inner cavity 111, the gas pressure in the laminated glass 200 is greater than the gas pressure in the hollow inner cavity 111, so that the gas in the laminated glass 200 flows into the hollow inner cavity 111 through the periphery of the laminated glass 200, the gas flowing into the hollow inner cavity 111 is pumped by the vacuum pumping device 120 until the gas in the laminated glass 200 is completely removed, and thus, the exhaust process of the laminated glass 200 is realized.

In addition, since the gas in the laminated glass 200 can be discharged outwards through the periphery of the laminated glass 200, it is equivalent to that an infinite number of pumping holes are arranged around the laminated glass 200 to pump the gas in the laminated glass 200, so that the gas in the laminated glass 200 can be discharged quickly. Meanwhile, the laminated glass 200 is not shielded and limited by the vacuum bag. Therefore, as shown in fig. 2, the constant exhaust rate line 201 of the laminated glass 200 can be a concentric curve parallel to and equidistant from the edge of the laminated glass 200, so that the uniformity of the exhaust of the laminated glass 200 is effectively ensured, the exhaust effect of the laminated glass 200 is improved, and the product quality of the laminated glass is further ensured.

In addition, the hollow inner cavity 111 is suitable for exhausting the laminated glass 200 with a curved surface structure and is also suitable for exhausting the laminated glass 200 with a planar structure, so that the applicability of the laminated glass manufacturing equipment 100 is improved.

After the laminated glass 200 is exhausted in the hollow inner cavity 111, the laminated glass 200 does not need to be moved from the exhaust station to the hot-press bonding station, but the heating device is directly used for heating the hollow inner cavity 111 of the process kettle 110 so as to increase the temperature of the laminated glass 200, so that the adhesive layer in the laminated glass 200 is completely dissolved, and meanwhile, the pressurizing device 130 is used for pressurizing the hollow inner cavity 111 of the process kettle 110 so as to enable the laminated glass 200 to be in a pressurized state, so that the glass sheet and the adhesive layer in the laminated glass 200 can be completely bonded into an integral structure, and the laminated glass without air bubbles is formed. Therefore, the laminated glass 200 can complete the exhaust process in the process kettle 110, and the laminated glass 200 can be pressurized and heated without moving the laminated glass 200 to form laminated glass, so that the factors influencing the quality in the process of processing the laminated glass are reduced, and the product quality of the laminated glass is effectively ensured.

In order to uniformly extract the gas in the hollow cavity 111 of the process kettle 110, in some possible embodiments, the vacuum extractor 120 includes a plurality of extraction ports, which are spaced apart and distributed around the circumferential wall of the process kettle 110 and are communicated with the hollow cavity 111.

Because the plurality of pumping ports are all communicated with the hollow inner cavity 111, the plurality of pumping ports can simultaneously pump gas into the hollow inner cavity 111, so that the gas in the laminated glass 200 can be uniformly pumped out.

As described above, the hollow cavity 111 is connected to both the evacuation device 120 and the pressurization device 130, and only one of the pressurization device 130 and the evacuation device 120 can communicate with the hollow cavity 111. Therefore, in order to facilitate switching between the vacuum pumping device 120 and the pressurization device 130, in some embodiments, the process tank 110 is connected with a switching valve 140, the switching valve 140 is respectively connected with the hollow inner cavity 111, the vacuum pumping device 120 and the pressurization device 130, the switching valve 140 has a first position and a second position, the switching valve 140 communicates the hollow inner cavity 111 with the vacuum pumping device 120 when the switching valve 140 is in the first position, and the switching valve 140 communicates the hollow inner cavity 111 with the pressurization device 130 when the switching valve 140 is in the second position. Therefore, the hollow inner cavity 111 can be communicated with the vacuumizing device 120 or the pressurizing device 130 by switching different stations of the switching valve 140, so that the aim of changing the air pressure of the hollow inner cavity 111 is fulfilled, and meanwhile, the connection structure of the process kettle 110 with the vacuumizing device 120 and the pressurizing device 130 can be simplified.

Optionally, the pressurizing device 130 is a gas compressor, wherein the gas compressor has a compression port, and the gas compressor can compress air and introduce the compressed air into the hollow cavity 111 through the compression port, so as to raise the pressure in the hollow cavity 111. In addition, the type, structure, etc. of the air compressor are not limited.

It should be noted that in other embodiments, the pressurizing device 130 may have other structures, such as an air pressurizer.

In some embodiments, the laminated glass manufacturing apparatus 100 further comprises: a controller, a temperature sensor and a pressure sensor. Wherein, the controller is respectively electrically connected with the vacuum-pumping device 120, the heating device, the pressurizing device 130 and the switching valve 140; the temperature sensor and the pressure sensor are both arranged in the hollow inner cavity 111 and are electrically connected with the controller, the temperature sensor is used for monitoring temperature information of the hollow inner cavity 111, and the pressure sensor is used for monitoring pressure information of the hollow inner cavity 111; the controller can control the operation of the vacuum device 120, the pressurization device 130, the heating device, and the switching valve 140 according to the temperature information and the pressure information, respectively.

Specifically, when the hollow inner cavity 111 needs to be in a vacuum state, the controller controls the vacuum pumping device 120 to be powered on to start working and controls the switching valve 140 to be switched to the first station, so that the vacuum pumping device 120 is communicated with the hollow inner cavity 111, the vacuum pumping device 120 pumps gas in the hollow inner cavity 111, and accordingly the gas pressure in the hollow inner cavity 111 is reduced, and until the pressure sensor detects that the gas pressure in the hollow inner cavity 111 reaches a preset vacuum degree, the controller controls the vacuum pumping device 120 to stop working according to the received pressure information. Similarly, when the pressure in the hollow cavity 111 needs to be increased, the controller controls the pressurizing device 130 to be powered to start working and controls the switching valve 140 to be switched to the second position, so that the vacuum pumping device 120 is communicated with the hollow cavity 111, the pressurizing device 130 enables the pressure in the hollow cavity 111 to be increased by introducing gas into the hollow cavity 111, and the controller controls the pressurizing device 130 to stop introducing air into the hollow cavity 111 according to the received pressure information until the pressure sensor detects that the pressure in the hollow cavity 111 reaches the preset pressure. Similarly, when the hollow inner cavity 111 needs to be heated, the controller controls the heating device to be powered on and heat the hollow inner cavity 111, and when the temperature sensor detects that the temperature of the hollow inner cavity 111 reaches the preset temperature, the controller controls the heating device to stop heating, so that the intelligent degree of the laminated glass manufacturing equipment 100 is improved.

In some embodiments, the laminated glass manufacturing apparatus 100 further includes a supporting frame 160 and a positioning member 161 disposed on the supporting frame 160, an upper surface of the supporting frame 160 is used for placing the laminated glass 200, and the positioning member 161 is used for preventing the laminated glass 200 from moving relative to the supporting frame 160.

Based on the structure, the laminated glass 200 can be firstly installed and fixed on the upper surface of the supporting frame 160 outside the technical kettle 110, and the laminated glass 200 does not need to be installed and fixed in the technical kettle 110, so that the convenience of installing the laminated glass 200 is improved. Then, the mounted laminated glass 200 and the supporting frame 160 are placed in the hollow inner cavity 111 to perform the exhaust process and the hot press bonding process of the laminated glass 200.

For example, as shown in fig. 3, the support frame 160 includes a plurality of support columns 163 and a support plate 162, one end of each of the support columns 163 is connected to a lower surface of the support plate 162, and an upper surface of the support plate 162 is an upper surface of the support frame 160.

By arranging the positioning member 161 on the supporting frame 160, the movement of the laminated glass 200 on the upper surface of the supporting frame 160 can be prevented, and the slippage between a plurality of glass sheets composing the laminated glass 200 can be prevented, so that the placing stability of the laminated glass 200 is improved.

Optionally, as shown in fig. 3, the positioning elements 161 include a plurality of positioning elements 161, the plurality of positioning elements 161 are arranged around the upper surface of the supporting frame 160 in a surrounding manner, and the fitting glass 200 is positioned by the plurality of positioning blocks, so that the fixing effect of the fitting glass 200 on the upper surface of the supporting frame 160 is effectively improved.

In some embodiments, as shown in fig. 4, the positioning member 161 includes a vertical portion 1612 and a horizontal portion 1611, one end of the vertical portion 1612 is connected to the upper surface of the supporting frame 160, the other end of the vertical portion 1612 is slidably connected to one end of the horizontal portion 1611, so that the horizontal portion 1611 can move in the vertical direction relative to the vertical portion 1612, and the lower surface of the horizontal portion 1611 is used for abutting against the upper surface of the fitting glass 200.

Based on the structure of the positioning element 161, the position of the horizontal portion 1611 on the vertical portion 1612 can be adjusted according to the thickness of the laminated glass 200, so that the positioning element 161 can be suitable for positioning the laminated glass 200 with different thicknesses. The moving range of the horizontal portion 1611 on the vertical portion 1612 is not limited, and for example, the moving range of the horizontal portion 1611 on the vertical portion 1612 is 5mm to 50mm, that is, the positioning member 161 can be used to position the laminated glass 200 having a thickness of 5mm to 50 mm.

In order to prevent the lower surface of the horizontal portion 1611 from mechanically damaging the laminated glass 200, a cushion pad may be provided on the lower surface of the horizontal portion 1611, so that the lower surface of the horizontal portion 1611 abuts against the laminated glass 200 through the cushion portion, and the cushion pad may prevent the upper surface of the laminated glass 200 from rigidly abutting against the lower surface of the horizontal portion 1611, thereby protecting the laminated glass 200.

The specific structure of the cushion pad is not limited, and for example, the cushion pad is an elastic rubber pad.

The heating device can preheat the laminated glass 200 in a vacuum state and also heat the laminated glass 200 in a high pressure environment, and in view of this, in some embodiments, the heating device includes a first heating device 151 and a second heating device 152, wherein the first heating device 151 is disposed on the process kettle 110 and is used for heating the hollow inner cavity 111, and the second heating device 152 is disposed on the supporting frame 160 and is used for preheating the laminated glass 200.

As shown in fig. 3, the second heating device 152 is disposed on the upper surface of the supporting frame 160 through a supporting member, and the second heating device 152 is disposed between the second heating device 152 and the upper surface of the supporting frame 160 for placing the laminated glass 200, when the hollow cavity 111 is in a vacuum state, the second heating device 152 heats the laminated glass 200, so as to preliminarily bond and position the laminated glass 200, and of course, before the laminated glass 200 with a large area is preset, the second heating device 152 is first controlled to heat a part of the laminated glass 200, for example, corners of the laminated glass 200 are first preheated, so that the laminated glass 200 is first pre-positioned, and then the second heating device 152 is controlled to integrally preheat the pre-positioned laminated glass 200, thereby further ensuring the product quality of the laminated glass.

As shown in fig. 5, the first heating devices 151 are disposed at the top and the bottom of the hollow cavity 111, so that the heating effect of the first heating devices 151 on the laminated glass 200 can be improved.

Specifically, the hollow inner cavity 111 is heated by the first heating devices 151 arranged at the top and the bottom, so that the air flows at the bottom and the top of the hollow inner cavity 111 are heated at the same time, the heating efficiency and the heating effect of the air flow in the hollow inner cavity 111 are improved, and the heated air flow in the hollow inner cavity 111 acts on the laminated glass 200 through heat transfer, so that the temperature of the laminated glass 200 is improved.

In order to further improve the heating effect of the first heating device 151 on the laminated glass 200, the upper surface of the supporting frame 160 is set to be a hollow structure, so that the heating air flow can directly act on the lower surface of the laminated glass 200 through the upper surface of the supporting frame 160.

In addition, the upper surface of the supporting frame 160 may be a planar structure or a curved structure, wherein the curvature of the curved structure corresponds to the structure of the laminated glass 200, so that the lower surface of the laminated glass 200 placed on the supporting frame 160 is tightly attached to the upper surface of the supporting frame 160, thereby improving the stability of the laminated glass 200.

Further, as shown in fig. 6, a circulation fan 170 is provided in the hollow inner cavity 111, and the circulation fan 170 is used to accelerate the air flow in the hollow inner cavity 111. Thus, by increasing the flow rate of the air flow in the hollow cavity 111, the heating effect of the first heating device 151 on the hollow cavity 111 can be increased.

In some possible embodiments, as shown in fig. 5, the heating device is a quartz heating tube 151 a. Because the quartz heating tube 151a has the advantages of fast temperature rise, small thermal inertia, good thermochemical stability, long service life and the like, the heating device is set as the quartz heating tube 151a, so that the heating speed and the heating effect of the laminated glass 200 can be improved, and the service life of the laminated glass manufacturing equipment 100 can be prolonged.

Example two

The embodiment also provides a laminated glass preparation method, which is applied to the laminated glass preparation equipment 100 in the first embodiment, and by applying the laminated glass preparation method to the laminated glass preparation equipment 100, the applicability of the laminated glass preparation equipment 100 and the exhaust effect of the laminated glass 200 can be improved, so that the product quality of the laminated glass is ensured.

Specifically, as shown in fig. 7, the method for preparing the laminated glass includes the steps of:

s10, placing the laminated glass in the hollow inner cavity of the technological kettle, and closing the kettle door of the technological kettle.

Before the kettle door 112 is closed, the connection state of the switching valve 140 with the pressurizing device 130 and the vacuumizing device 120 needs to be checked to ensure that the pressurizing device 130 and the vacuumizing device 120 can normally act on the hollow inner cavity 111 after the kettle door 112 is closed; the electrical connection condition of the temperature sensor and the pressure sensor needs to be checked to ensure that the temperature sensor and the pressure sensor can normally detect data and can send the detected data to the controller; in addition, according to the placing position of the laminated glass 200 and the thickness of the laminated glass 200, the height and the position of a heating device such as a quartz heating tube 151a are correspondingly adjusted, thereby ensuring the heating effectiveness of the heating device on the laminated glass 200.

After the above inspection is completed, the kettle door 112 is closed to form a sealed environment for the hollow interior 111.

And S20, extracting the gas in the hollow cavity until the hollow cavity reaches a preset vacuum degree.

The vacuumizing device 120 can suck the gas in the hollow inner cavity 111 out, so that the hollow inner cavity 111 is in a vacuum state, and the laminated glass 200 is positioned in the hollow inner cavity 111, so that the gas in the laminated glass 200 is completely sucked out, and the purpose of exhausting the laminated glass 200 is achieved.

Wherein the preset vacuum degree is less than 10 Pa. The preset vacuum degree is set in relation to the structure of the laminated glass 200, for example, when the laminated glass 200 is in a planar structure, the purpose of rapidly exhausting the laminated glass 200 can be achieved only by setting the preset vacuum degree to 10 Pa. When the laminated glass 200 is a curved structure, due to the particularity of the curved structure, the flow path of the air flow between the glass sheets cannot be kept in a straight line state, so that the flow path of the air flow is increased, and in order to improve the exhaust speed and the exhaust effect of the laminated glass 200 with the curved structure, the preset vacuum degree is usually reduced, for example, when the laminated glass 200 is in the curved structure, the preset vacuum degree is set to be 1Pa, so that the laminated glass 200 with the curved structure can be rapidly and effectively exhausted.

And S30, preheating the laminated glass so as to preliminarily bond and position the laminated glass.

After the laminated glass 200 is scheduled, the laminated glass 200 is preheated by the second heating device 152, so that the adhesive layer becomes soft and forms initial bonding and positioning with the glass sheet, thereby avoiding the possibility of displacement of the glass sheet in the pressurizing and heating process of the laminated glass 200 and further ensuring the product quality of the laminated glass.

Specifically, as shown in fig. 8, the preheating of the laminated glass 200 includes the following steps:

and S31, heating the corner of the laminated glass to a first preset temperature and keeping the temperature for a first preset time period.

If the area of the laminated glass 200 is large, in order to prevent the slippage of the glass sheet in the laminated glass 200, the corner region of the laminated glass 200 is first preheated to a first preset temperature, so that the corner region of the laminated glass 200 is bonded to enhance the positioning.

The first preset temperature is within the range of 50-60 ℃, when the heating temperature of the corner is within the range of 50-60 ℃, the local softening of the glue layer can be realized, the softened glue layer is bonded with the glass sheet, and the overall influence on the laminated glass 200 can be reduced.

And S32, heating the whole laminated glass to a second preset temperature and keeping the temperature for a second preset time period.

If the area of the laminated glass 200 is large, after the corner heating and positioning are completed, the whole laminated glass 200 is heated, so that the glass sheets in the laminated glass 200 are bonded with the adhesive layer preliminarily.

The second preset temperature range is 60-100 ℃, namely, the second preset temperature range is between the first preset temperature range and the preset temperature range, so that the preliminary bonding of the laminated glass 200 can be realized, and the adhesive layer can be prevented from being completely dissolved.

If the area of the laminated glass 200 is small, the corner portion can be directly skipped for heating, and the laminated glass 200 can be directly and integrally heated. The corner of the laminated glass 200 may be heated first, and the entire laminated glass 200 may be heated, which may be selected by those skilled in the art according to actual needs.

And S40, pressurizing the hollow inner cavity to a preset pressure, heating the hollow inner cavity to a preset temperature at the same time to melt the adhesive layer in the laminated glass, and keeping the laminated glass at the preset pressure and the preset temperature for a preset time period.

After the preliminary bonding and positioning of the laminated glass 200 are completed, air is introduced into the hollow inner cavity 111 through the pressurizing device 130 to increase the pressure of the hollow inner cavity 111 until a preset pressure is reached, so that the laminated glass 200 is in a pressed state, meanwhile, the laminated glass 200 is heated through the first heating device 151, so that the glue layer in the laminated glass 200 is completely dissolved, and the glue layer is kept for a preset time period under the preset pressure and temperature state, namely the laminated glass 200 is in a heat preservation and pressure maintaining stage until the glue layer and the glass sheet are bonded into an integral structure.

Wherein, because, after joining piece glass 200 and accomplishing preheating under vacuum state, need to carry out the pressure heating to joining piece glass 200 so that glass piece and glue film bond completely, consequently, set up the scope of predetermineeing pressure between 1Mpa-1.5Mpa for predetermineeing pressure and be greater than predetermineeing the vacuum, so, can make and join piece glass 200 and be in the pressurized state. Meanwhile, the preset temperature is set to be within the range of 100-150 ℃, so that the preset temperature is higher than the second preset temperature, the temperature of the laminated glass 200 can be further increased, and the dissolving speed of the adhesive layer is accelerated. In addition, the preset time period is not limited, for example, 0.25h to 4h, as long as the laminated glass 200 is kept in the pressurized and heated state for the preset time period, so that the adhesive layer and the glass sheet are bonded into an integral structure.

And S50, cooling to form the laminated glass.

Specifically, by reducing the temperature and pressure in the hollow interior 111, a strong, transparent, pore-free laminated glass is formed.

In some embodiments, as shown in fig. 9, before placing the laminated glass 200 in the hollow cavity 111 of the processing kettle 110, the following steps are further included:

and S01, taking the support frame out of the hollow inner cavity and placing the support frame in a preset environment.

S02, laying a protective film on the upper surface of the support frame, sequentially stacking a plurality of glass sheets on the protective film, and respectively coating adhesive layers between two adjacent glass sheets to form laminated glass.

And S03, positioning the laminated glass.

And S04, placing the support frame with the laminated glass into the hollow inner cavity.

Therefore, the method can enable the laminated glass 200 to be installed and positioned in a preset environment outside the process kettle 110, and the installation convenience of the laminated glass 200 is improved.

It should be noted that: the preset environment refers to a clean, constant-temperature and constant-humidity environment, and the phenomenon that impurities fall on a glass sheet to influence the product quality of the laminated glass in the process of forming the laminated glass 200 is avoided.

The protective film serves to protect the laminated glass 200 from direct contact with the upper surface of the supporting frame 160.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.