Vacuum glass welding equipment and vacuum glass welding method

Abstract

The invention relates to the technical field of vacuum glass sealing and welding equipment, in particular to vacuum glass welding equipment and a vacuum glass welding method. Vacuum glass welding equipment comprises a conveying assembly, a pressing mechanism and a welding device. The conveying assembly is used for conveying a to-be-sealed glass assembly; the pressing mechanism is used for pressing the to-be-sealed glass assembly and vacuumizing the to-be-sealed glass assembly through the air exhaust device; the welding device comprises a welding movement mechanism and a heating welding mechanism; the heating and welding mechanism is connected with the welding movement mechanism and moves through the welding movement mechanism to heat a to-be-welded part of the to-be-sealed glass assembly; wherein the number of the heating and welding mechanisms is larger than or equal to two, the heating and welding mechanisms can independently weld the glass assembly to be sealed, and / or at least two heating and welding mechanisms jointly complete welding of the glass assembly to be sealed.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum glass sealing equipment, and in particular to a vacuum glass welding equipment;

[0002] The invention also relates to a vacuum glass welding method. Background Art

[0003] The existing vacuum glass welding equipment is a single heating welding mechanism. When the heating welding structure heats and welds the glass assembly to be sealed after the upper and lower glass substrates are assembled, for larger-sized glass assemblies to be sealed, due to the large glass surface, the distance to be welded around the edges is long, and the waiting time for welding of different glass edges to be welded varies greatly. Or, when there are multiple glass assemblies to be sealed, the total distance of the edges to be welded is long, and the welding order of different glass assemblies to be sealed is different, resulting in the glass assemblies to be sealed with a later welding order. The greater the temperature difference between the upper and lower glass substrates, the more uneven the temperature. In the above two cases, a single heating welding mechanism is used, and the waiting time for welding of different glass edges to be welded varies greatly, which increases the temperature non-uniformity caused by the heat loss on the glass surface during the welding process. In particular, the temperature difference between the upper and lower glass is too large, which easily leads to uneven welding quality and glass cracking during the welding process, or vacuum glass cracking after welding cooling, large stress differences at different positions of the glass, unacceptable glass bending and deformation, and other quality problems, which seriously affect the quality of vacuum glass. In addition, a single heating and welding mechanism is used, which takes a long time to weld each furnace of glass, resulting in a slow production pace and cannot meet the demand.

[0004] The invention patent application number 201110186356.5 discloses a vacuum glass sealing method and device, which can realize one-time vacuuming and sealing. During the welding process, the upper glass is pressed by the sealing rubber, and then the upper glass is indirectly exposed to the external environment through the sealing rubber. The temperature of the lower glass is guaranteed in the first closed space. The upper glass changes with the ambient temperature. When the ambient temperature is too low, the upper glass will dissipate heat too quickly, and the temperature difference between the upper glass and the lower glass will exceed the set range. After the vacuum glass welding is cooled, the glass will have unacceptable bending deformation.

[0005] In order to reduce the adverse effects of long welding time, we try to speed up the welding speed under the premise of taking necessary insulation measures. However, there is a limit to the increase of welding speed. Excessive increase of welding speed will lead to insufficient melting and poor welding. The welding effect is not obvious, and there will still be uneven welding quality, cracking and bending after welding. Now we need to solve this problem urgently. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a vacuum glass welding device to solve the problem that the device disclosed in the vacuum glass welding device in the prior art is not suitable for welding a single vacuum glass or multiple vacuum glasses with a long total welding distance.

[0007] In order to solve the above problems, the present invention also provides a vacuum glass welding method.

[0008] A vacuum glass welding device comprises a transmission component, a pressing mechanism and a welding device;

[0009] The transmission component is used to transmit the glass components to be sealed;

[0010] The pressing mechanism is used to press the glass assembly to be sealed;

[0011] The welding device comprises a welding motion mechanism and a heating welding mechanism; the heating welding mechanism is correspondingly connected to the welding motion mechanism, and driven by the welding motion mechanism, the welding is performed on the welding part of the sealed glass assembly; the number of the heating welding mechanisms is greater than or equal to two,

[0012] The heating and welding mechanism can weld the glass component to be sealed individually, and / or at least two of the heating and welding mechanisms can weld the glass component to be sealed together.

[0013] Furthermore, the number of the heating and welding mechanisms is equal to the number of the welding movement mechanisms, and the heating and welding mechanisms are connected to the welding movement mechanisms in a one-to-one correspondence.

[0014] Preferably, the heating and welding mechanisms are arranged in an even number, and the heating and welding mechanisms may be two, four or six.

[0015] Furthermore, it also includes a position identification mechanism, which is arranged on the welding movement mechanism; or, the position identification mechanism is arranged on the identification movement mechanism; or, the position identification mechanism is fixedly arranged above the transmission component.

[0016] Furthermore, the pressing mechanism includes a pressing component.

[0017] Furthermore, it also includes a lower box and an in-and-out control mechanism; the pressing mechanism includes a partition; the transmission component is arranged in the lower box, and the partition is used to construct a first enclosed space with the lower box; the first enclosed space is provided with an air extraction port for vacuuming; wherein,

[0018] The first enclosed space is used to accommodate the glass assembly to be sealed, and the access control mechanism is used to control the communication between the first enclosed space and the outside and the access of the glass assembly to be sealed;

[0019] The welding device is arranged outside the first enclosed space.

[0020] Further, the access control mechanism includes a partition lifting mechanism; the partition lifting mechanism is arranged at the bottom of the partition and is used to control the lifting of the partition; or,

[0021] The inlet and outlet control mechanism includes an isolation door, and the lower box body is provided with a feed port and a discharge port for connecting the first enclosed space with the outside world; the feed port and the discharge port are respectively provided with isolation doors. Beneficial effect: The partition is lifted by the partition lifting mechanism, or the isolation door is opened and closed to achieve the entry and exit of the glass assembly to be sealed.

[0022] Furthermore, it also includes an upper cover, and the partition is used to construct a second enclosed space with the upper cover, and the second enclosed space is provided with an exhaust port for vacuuming.

[0023] Furthermore, the welding device is arranged outside the second enclosed space; the access control mechanism further comprises an upper cover lifting mechanism;

[0024] The upper cover, the partition and the lower box are arranged in sequence from top to bottom;

[0025] The upper cover lifting mechanism includes a lifting bracket and a lifting mechanism arranged on the lifting bracket, and the lifting mechanism is connected to the upper cover and is used to control the lifting and lowering of the upper cover; beneficial effect: the partition is lifted by the partition lifting mechanism, and the upper cover is lifted in combination with the upper cover lifting mechanism to realize the entry and exit of the glass assembly to be sealed.

[0026] Furthermore, the first enclosed space and / or the second enclosed space is provided with a heating component.

[0027] Furthermore, the inlet and outlet control mechanism includes an isolation door; the lower box body is provided with a feed port and a discharge port connected to the first enclosed space; the feed port and the discharge port are respectively provided with isolation doors. Beneficial effect: The glass assembly to be sealed can be brought in and out by opening and closing the isolation door.

[0028] Furthermore, the partition includes a sealing rubber and a metal frame arranged on the outer periphery of the sealing rubber.

[0029] Furthermore, a support assembly is also provided in the lower box body; the transmission assembly can be raised and lowered, and the glass assembly to be sealed is placed on the support assembly.

[0030] Furthermore, the heating welding mechanism is an induction heating welding mechanism and an ultrasonic heating welding mechanism.

[0031] The vacuum glass welding equipment of the present invention at least includes the following effects: the vacuum glass welding equipment is provided with a plurality of heating welding mechanisms. When welding one or more glass components to be sealed entering the equipment, the plurality of heating welding mechanisms weld the same glass component to be sealed from a plurality of different positions to be welded respectively, and complete the sealing together; or, when welding a plurality of glass components to be sealed, each heating welding mechanism welds a glass component to be sealed respectively, and completes the welding together quickly. The use of such a multi-head welding method reduces the time used for welding, reduces the influence of the uneven temperature of the upper and lower glass substrates on the welding process during the welding process, avoids the problems of insufficient welding melting and poor welding caused by too long welding time, and the welding effect is not obvious, and there will still be phenomena such as uneven welding quality, bursting after welding, bending, etc., and the production rhythm can be accelerated.

[0032] The present invention also provides a vacuum glass welding method, in which a plurality of glass components to be sealed are welded and edge-sealed by a plurality of heating welding mechanisms in the same welding device.

[0033] Furthermore, at least two heating and welding mechanisms start welding from different positions to be welded on the same glass component to be sealed, and jointly and quickly complete the welding and edge sealing of the four peripheral edges of the glass component to be sealed.

[0034] Furthermore, there are multiple glass components to be sealed, and at least one glass component to be sealed is independently welded and edge-sealed by one of the heating and welding mechanisms.

[0035] Furthermore, several glass components to be sealed are welded and edge-sealed in a vacuum chamber of a welding device. Before welding, the vacuum chamber is continuously evacuated to allow the interior of the glass components to be sealed to reach a target vacuum degree.

[0036] Furthermore, before welding, the position information of the edges to be welded of the plurality of glass components to be sealed must be identified, and the position information must be transmitted to the welding motion mechanism that drives the heating welding mechanism to move the welding.

[0037] Furthermore, during the welding process, the glass component to be sealed is continuously heated and kept warm.

[0038] The welding method of the present invention has at least the following beneficial effects: the welding method can realize the common rapid welding of one or more glass components to be sealed by using multiple heating welding mechanisms, reduce the time used for welding, reduce the influence of the uneven temperature of the upper and lower glass substrates on the welding process during welding, avoid the problems of insufficient welding melting and poor welding caused by too long welding time, the welding effect is not obvious, and there will still be phenomena such as uneven welding quality, cracking and bending after welding, etc., which can greatly improve the welding quality, the quality of vacuum glass and the production efficiency. . And it can speed up the production rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 This is a schematic diagram of the front structure of Example 1 of the present invention;

[0041] Figure 2 This is a schematic diagram of the front structure of Example 2 of the present invention;

[0042] Figure 3 It is a schematic diagram of the side structure of embodiment 3 of the present invention;

[0043] Figure 4 This is a schematic diagram of the front structure of Example 3 of the present invention;

[0044] Figure 5 It is a schematic diagram of the side structure of embodiment 4 of the present invention;

[0045] Figure 6 This is a schematic diagram of the front structure of Example 4 of the present invention;

[0046] Figure 7 This is another schematic diagram of the installation structure of Example 1 of the present invention.

[0047] Figure 8 A schematic diagram of a welding arrangement of Embodiment 5 of the present invention;

[0048] Fig. 9 A schematic diagram of a welding arrangement of Embodiment 5 of the present invention;

[0049] Fig.10 A schematic diagram of a welding arrangement of Embodiment 5 of the present invention;

[0050] Fig.11 This is a schematic diagram of a welding arrangement according to Example 5 of the present invention.

[0051] Description of reference numerals:

[0052] 101, third upper cover; 1011, lifting ear; 102, third partition; 103, third lower box; 201, lifting bracket; 202, chain lifting mechanism; 2021, driving device; 2022, driving shaft; 2023, first sprocket; 2024, second sprocket; 2025, third sprocket; 2026, fourth sprocket; 203, third partition lifting mechanism; 301, third welding movement mechanism; 302, third heating welding mechanism; 303, third position recognition mechanism; 304, articulated robot; 401, third transmission assembly; 402, third support assembly; 501, fourth upper cover; 502, fourth partition; 503, fourth lower box; 504, partition From the door; 601, the fourth welding movement mechanism; 602, the fourth heating welding mechanism; 603, the fourth position identification mechanism; 701, the fourth transmission component; 702, the second supporting component; 801, the pressing component; 802, the first welding movement mechanism; 803, the first heating welding mechanism; 804, the first position identification mechanism; 805, the first transmission component; 901, the second partition; 902, the second welding movement mechanism; 903, the second heating welding mechanism; 904, the second position identification mechanism; 905, the second transmission component; 906, the second lower box; 907, the second partition lifting mechanism; 1001, the fifth heating welding mechanism; 1002, the glass component to be sealed. DETAILED DESCRIPTION

[0053] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0057] Example 1

[0058] like Figure 1 The vacuum glass welding equipment shown comprises a transmission component, a pressing mechanism and a welding device; the transmission component is used to transmit the glass component to be sealed; the pressing mechanism is used to press the glass component to be sealed;

[0059] In this embodiment, the transmission component is the first transmission component 805, and the pressing mechanism is the pressing component 801. The pressing component 801 is used to give a certain pressing force to the glass component to be sealed during the welding process, which can improve the quality of welding.

[0060] The welding device includes a first welding motion mechanism 802 and a first heating welding mechanism 803, and is also provided with a first position identification mechanism 804; the first welding motion mechanism 802 is provided with a first heating welding mechanism 803, and a first position identification mechanism 804 is provided on a side of the first heating welding mechanism 803; the first welding motion mechanism 802 is a welding motion mechanism, which is used to drive the first heating welding mechanism 803 to move and weld in a three-dimensional space. Among them, the first position identification mechanism 804 is an edge-finding sensor. Among them, there are at least two first heating welding mechanisms 803, and multiple first heating welding mechanisms 803 weld a glass component to be sealed together, or each first heating welding mechanism 803 welds a glass component to be sealed respectively. In other embodiments, the first position identification mechanism 804 can also be provided on an independent identification motion mechanism, and the identification motion mechanism is used to drive the position identification mechanism to identify the welding position.

[0061] The first transmission component 805 is used to transport the glass components to be sealed or the vacuum glass after welding; specifically, the first transmission component 805 is a roller, or a roller is sleeved on the roller, or the first transmission component 805 is a chain or a conveyor belt.

[0062] The first heating welding mechanism 803 is an induction heating welding mechanism or an ultrasonic heating welding mechanism;

[0063] In this embodiment, the number of the first welding movement mechanism 802 and the first heating welding mechanism 803 are both two, and the first welding movement mechanism 802 and the first heating welding mechanism 803 are connected one by one. The number of the first position recognition mechanism 804 is also two, and the first position recognition mechanism 804 is an edge finding sensor, and each edge finding sensor is arranged on one first welding movement mechanism 802.

[0064] Working process: the glass component to be sealed is transferred from the outside to the first transmission component 805, and the pressing component applies a certain pressing force to the glass component to be sealed;

[0065] Subsequently, multiple first heating and welding mechanisms 803 jointly weld a glass component to be sealed. Specifically, one of the first position identification mechanisms 804 can be used to complete edge finding to obtain welding position information, and then multiple first welding movement mechanisms 802 are controlled simultaneously to drive their respective first heating and welding mechanisms 803 to jointly complete welding of the glass component to be sealed. Alternatively, in the case where multiple glass components to be sealed enter the welding equipment at the same time, each first heating and welding mechanism 803 welds one glass component to be sealed respectively. Specifically, one glass component to be sealed uses a first position identification mechanism 804 to find its edge to obtain welding position information, and its corresponding first welding movement mechanism 802 drives its first heating and welding mechanism 803 to perform welding.

[0066] In other embodiments, a position identification mechanism can also be used to obtain the edge position information of one or more glass components to be sealed, so as to control multiple welding motion mechanisms to drive their respective heating and welding mechanisms to jointly complete welding, which can quickly and accurately judge and identify the peripheral position information of the vacuum glass and seal it; the position identification mechanism can also be set on an independent identification motion mechanism, and the identification motion mechanism can be used to drive the position identification mechanism to move and identify the position to be welded, or the position identification mechanism can be fixedly set above the transmission component.

[0067] As another embodiment, there are two glass components to be sealed entering the welding device, and each first heating welding mechanism 803 can independently weld one glass component to be sealed, and jointly and quickly complete the welding of the two glass components to be sealed.

[0068] As another embodiment, there are four first welding movement mechanisms 802 and four first heating welding mechanisms 803 respectively, there are two glass components to be sealed, and every two first heating welding mechanisms 803 weld one glass component to be sealed.

[0069] As another embodiment, there are three first welding movement mechanisms 802 and three first heating welding mechanisms 803, and there are two glass components to be sealed. Two first heating welding mechanisms 803 weld one glass component to be sealed together. Another first heating welding mechanism 803 independently welds another glass component to be sealed.

[0070] Example 2

[0071] like Figure 2 A vacuum glass welding device is shown, comprising a second lower box body 906, a second transmission component 905, a pressing mechanism, a welding device and an entry and exit control mechanism; the pressing mechanism is a second partition plate 901, and the second partition plate 901 is used to construct a first enclosed space with the second lower box body 906; the first enclosed space is provided with an exhaust port for vacuuming; wherein, the first enclosed space is used to accommodate the glass components to be sealed.

[0072] The second transmission component 905 is arranged in the first enclosed space, and is used to transport the glass components to be sealed or the vacuum glass; specifically, the second transmission component 905 is a roller, or a roller is also provided on the roller, or the second transmission component 905 is a chain or a conveyor belt.

[0073] In this embodiment, the access control mechanism is used to control the connection between the first enclosed space and the outside world and the access of the glass assembly to be sealed. The access control mechanism includes a second partition lifting mechanism 907; the second partition lifting mechanism 907 is arranged at the bottom of the second partition 901, and is used to control the lifting of the second partition 901, so that the structure is easy to operate and use. At the same time, after the second partition 901 is raised, the first enclosed space is opened, and a first communication channel is formed between the top of the second lower box 906 and the second partition 901. The first communication channel is used for the glass assembly to be sealed to move into the first enclosed space or the vacuum glass after sealing and welding to move out of the first enclosed space.

[0074] The second partition 901 includes a metal frame and a sealing rubber made of metal; the metal frame is arranged along the periphery of the sealing rubber and is used to connect with the second lower box 906. The sealing rubber is polyurethane, fluororubber or other composite materials with certain elasticity and tensile strength. Since the sealing rubber is flexible, the metal frame made of metal is used to receive and fix the sealing rubber, so that the force can be better applied to realize the overall lifting action of the sealing rubber.

[0075] A heating component is disposed inside the second lower box 906; the heating component is disposed below the first supporting component 3-2, and is used to preheat and insulate the interior of the equipment, and to insulate the glass components to be sealed that are transported by the external transport component, so as to ensure the quality of the sealing welding;

[0076] The welding device is arranged outside the first confined space, and the welding device includes a second welding motion mechanism 902 and a second heating welding mechanism 903, and is also provided with a second position identification mechanism 904; the second welding motion mechanism 902 is fixedly arranged on the lower box body, or independently arranged outside the lower box body, the second welding motion mechanism 902 is installed with a second heating welding mechanism 903, and a second position identification mechanism 904 is installed on one side of the second heating welding mechanism 903; the second welding motion mechanism 902 is a welding motion mechanism, which is used to drive the second heating welding mechanism 903 to move and weld in a three-dimensional space. There are two second heating welding mechanisms 903, and the two second heating welding mechanisms 903 weld a glass component to be sealed together, or each second heating welding mechanism 903 welds a glass component to be sealed respectively. Among them, the second position identification mechanism 904 is an edge-finding sensor, and the second position identification mechanism 904 and the second heating welding mechanism 903 can be set according to the number of glass components to be sealed that enter the first confined space at a single time. In other embodiments, the second position identification mechanism 904 can also be set on an independent identification motion mechanism. The first heating welding mechanism is an induction heating welding mechanism or an ultrasonic heating welding mechanism;

[0077] In this embodiment, there are two second welding motion mechanisms 902 and two second heating welding mechanisms 903, and the heating welding mechanisms are connected to the welding motion mechanisms in a one-to-one correspondence. There are also two second position identification mechanisms 904, which are edge finding sensors, and each edge finding sensor is arranged on one welding motion mechanism.

[0078] Working process: the heating assembly is started to preheat and keep warm the glass assembly to be sealed that is about to enter the first enclosed space; the second partition lifting mechanism 907 controls the second partition 901 to rise, and a first connecting channel is formed between the top of the second lower box 906 and the second partition 901; the glass assembly to be sealed preheated by the preheating device arranged in front of the welding equipment is transferred from one side of the first connecting channel to the second transmission assembly 905, the second transmission assembly 905 moves downward, and places the glass assembly to be sealed on the first supporting assembly 3-2; then the second partition lifting mechanism 907 controls the second partition 901 to descend, and the second partition 901 is airtightly connected to the second lower box 906;

[0079] Subsequently, the first enclosed space is evacuated by the exhaust device, and the gas between the glass components to be sealed is gradually discharged. When the vacuum degree of the first sealed space reaches and is maintained at the value required for vacuum glass sealing for a certain period of time, the atmospheric pressure causes the sealing rubber on the second partition plate 901 to be pressed against the upper surface of the glass component to be sealed on the upper side;

[0080] Subsequently, multiple second heating and welding mechanisms 903 jointly weld a glass component to be sealed. Specifically, one of the second position identification mechanisms 904 can be used to complete edge finding to obtain welding position information, and then multiple second welding motion mechanisms 902 can be controlled simultaneously to drive their respective second heating and welding mechanisms 903 to jointly complete welding of the glass component to be sealed. Alternatively, in the case where multiple glass components to be sealed enter the welding device at the same time, each second heating and welding mechanism 903 welds one glass component to be sealed respectively. Specifically, one glass component to be sealed uses a second position identification mechanism 904 to find the edge to obtain welding position information, and its corresponding first welding motion mechanism 802 drives its second heating and welding mechanism 903 to perform welding.

[0081] Subsequently, the second partition plate 901 is raised, the second transmission assembly 905 moves upward, and the manufactured vacuum glass is transmitted out from the other side of the first connecting channel.

[0082] The welding is performed while the second partition plate 901 is pressing the glass component to be sealed, which can improve the welding quality.

[0083] In other embodiments, a second position identification mechanism 904 can be used to obtain the edge position information of one or more glass components to be sealed, so as to control multiple second welding motion mechanisms 902 to drive respective second heating welding mechanisms 903 to jointly complete welding, and can quickly and accurately determine and identify the peripheral position information of the vacuum glass and seal it. In this case, the second position identification mechanism 904 can be set on an independent identification motion mechanism, and the identification motion mechanism can be used to drive the second position identification mechanism 904 to move and identify the welding position, or the second position identification mechanism 904 can be fixedly set above the second transmission component 905 to identify the position to be welded.

[0084] In this embodiment, the core functions of vacuum glass exhaust, sealing and welding are integrated into a vacuum glass welding device, the vacuum glass exhaust port is removed, and the production of vacuum glass is completed by one vacuuming and sealing, without the need for secondary exhaust, which greatly simplifies the production process of vacuum glass. The vacuum glass welding device can complete the production of vacuum glass by one vacuuming and sealing with a single device, replacing the traditional vacuum glass production line without the need for a multi-stage vacuum chamber to achieve vacuuming and sealing, greatly reducing the number of equipment, production site occupation, energy consumption and the number of operators, and can significantly reduce the production cost of vacuum glass.

[0085] Example 3

[0086] like Figure 3 and Figure 4A vacuum glass welding device shown includes a third upper cover 101, a third partition 102, a third lower box 103, a welding device, an in-and-out control mechanism, and a moving mechanism. The third partition 102 is used to form a second enclosed space and a first enclosed space that are vertically spaced apart with the third upper cover 101 and the third lower box 103. A moving mechanism for moving the glass assembly to be sealed or the vacuum glass is provided in the first enclosed space; the in-and-out control mechanism is used to control the connection between the first enclosed space and the outside world and the in-and-out of the glass assembly to be sealed.

[0087] The third upper cover 101 can cover the opening at the top of the third lower box body 103, and the third partition plate 102 is arranged between the third upper cover 101 and the third lower box body 103; the third partition plate 102 is airtightly connected to the bottom of the third upper cover 101 and the top of the third lower box body 103 respectively; the top of the third upper cover 101 is provided with an exhaust hole connected to the second enclosed space and used for exhausting air; the front and rear sides of the third lower box body 103 are respectively provided with exhaust holes connected to the first enclosed space and used for exhausting air; the exhaust holes are connected to the exhaust devices for extracting gas in the second enclosed space or the first enclosed space, and controlling the vacuum degree in the second enclosed space or the first enclosed space.

[0088] The third partition plate 102 includes a metal frame and a sealing rubber made of metal; the metal frame is arranged along the periphery of the sealing rubber and is used to be connected to the third upper cover 101 and the third lower box 103 respectively. The sealing rubber is polyurethane, fluororubber or other composite materials with certain elasticity and tensile strength. Since the sealing rubber is flexible, the metal frame made of metal is used to receive and fix the sealing rubber, so that the force can be better applied to realize the overall lifting action of the sealing rubber.

[0089] The access control mechanism includes an upper cover lifting mechanism; the upper cover lifting mechanism includes a lifting bracket 201, on which a lifting mechanism for controlling the lifting of the third upper cover 101 is installed, and the lifting mechanism is a sprocket chain lifting mechanism 202 or a screw lifting mechanism.

[0090] In this embodiment, the sprocket chain lifting mechanism 202 includes a driving device 2021, a driving shaft 2022, a sprocket and a chain. The driving device 2021 is installed on the top right side of the lifting bracket 201, and the driving device 2021 includes a first driving motor and a reducer used in conjunction with the first driving motor, and the driving shaft 2022 is longitudinally installed on the reducer;

[0091] The sprockets include a first sprocket 2023, a second sprocket 2024, a third sprocket 2025 and a fourth sprocket 2026; both ends of the drive shaft 2022 extend out of the reducer, and both ends of the drive shaft 2022 are respectively sleeved with bearings and the first sprocket 2023 in sequence in the direction away from the reducer, and the bearings are installed on the first bracket, and the first bracket is fixedly installed on the top of the lifting bracket 201. Two first brackets, two second brackets for installing the second sprocket 2024, a third bracket for installing the third sprocket 2025 and a fourth bracket 2026 for installing the fourth sprocket are fixedly installed on the top of the lifting bracket 201 from right to left in sequence. The first sprocket 2023 and the second sprocket 2024 are correspondingly provided with a first chain, and the two ends of the first chain are respectively fixedly connected to the connecting member for controlling the connecting member to move left or right; the second chain and the third chain are fixedly connected to the side of the connecting member away from the first sprocket; one end of the second chain extends downward after adjusting its position through the third sprocket, and is connected to the ear 1011 arranged on the right side of the top of the first upper cover 101; one end of the third chain extends downward after adjusting its position through the fourth sprocket, and is connected to the ear 1011 arranged on the left side of the top of the first upper cover 101.

[0092] In this embodiment, the sprocket chain lifting mechanism 202 lifts the third upper cover 101, and has a simple structure and is easy to operate and use.

[0093] The access control mechanism also includes a third partition lifting mechanism 203, which is installed on the left and right outer walls of the third lower box 103 and is used to control the lifting of the third partition 102. The top of the third partition lifting mechanism 203 is connected to the bottom of the metal frame. Preferably, the third partition lifting mechanism 203 can be a cylinder.

[0094] In this embodiment, the in-and-out control mechanism controls the lifting and lowering of the third upper cover 101 and the third partition 102 respectively, so that the structure is easy to operate and use. At the same time, after the third partition 102 is lifted, the first enclosed space is opened, and a first communication channel is formed between the top of the third lower box 103 and the third partition 102. The first communication channel is used for the glass assembly to be sealed to move into the first enclosed space or the vacuum glass to move out of the first enclosed space.

[0095] The moving mechanism includes a third transmission component 401 disposed in the third lower box 103, and the third transmission component 401 is used to transport the glass components to be sealed or the vacuum glass; in this embodiment, the third transmission component 401 can be raised and lowered.

[0096] The moving mechanism also includes a third support assembly 402, which is installed at the bottom of the third lower box 103. After the third transmission assembly 401 is lowered, the top of the third support assembly 402 can pass through the gap in the middle of the third transmission assembly 401 and abut against the glass assembly to be sealed or the vacuum glass. The third support assembly 402 is used to ensure the flat support and welding quality of the glass assembly to be sealed, so as to avoid the glass assembly to be sealed from being easily broken when the third partition plate 102 presses the glass assembly to be sealed for welding, and the occurrence of welding quality problems such as uneven welding.

[0097] A heating assembly is also provided; the heating assembly includes a first heating assembly provided on the inner wall of the top of the third upper cover 101 and a second heating assembly provided below the third support assembly 402. The first heating assembly and the second heating assembly are used to preheat the interior of the equipment, and to keep the glass assembly to be sealed delivered by the external delivery assembly warm, so as to ensure the quality of welding and sealing; preferably, a heat insulation board is provided in the first enclosed space, and the heat insulation board is provided below the second heating assembly, so as to prevent the heat from being transferred downward to the box body to avoid the problem of heating of the box body, and the heat insulation board can also play a role in energy saving.

[0098] In this embodiment, the first heating component and the second heating component are used to heat the second enclosed space and the first enclosed space respectively, and control the temperature difference between the first heating space and the second heating space, so that the actual measured value of the long side deflection of the manufactured vacuum glass meets the national standard.

[0099] The welding device is installed on the lower box, or the welding device is independently arranged outside the lower box, and the welding device is arranged outside the first confined space and the second confined space; specifically, the welding device includes a third welding motion mechanism 301, a third heating welding mechanism 302, and a third position identification mechanism 303; the third welding motion mechanism 301 is arranged on the lower box, or the welding device is independently arranged outside the lower box, and the third heating welding mechanism 302 is installed on the third welding motion mechanism 301, and the third position identification mechanism 303 is installed on one side of the third heating welding mechanism 302; the third welding motion mechanism 301 is a three-axis welding motion mechanism in the prior art, which is used to facilitate the movement of the third heating welding mechanism 302 in three-dimensional space. Among them, the third position identification mechanism 303 is an edge-finding sensor. Among them, there can be multiple third position identification mechanisms 303 and third heating welding mechanisms 302, which are arranged according to the size of the glass components to be sealed that enter the first confined space at a time. Among them, the three-axis welding motion mechanism is a prior art and will not be described in detail here.

[0100] In this embodiment, there are two third welding motion mechanisms 301 and three heating welding mechanisms 302, and the third heating welding mechanisms 302 are connected to the third welding motion mechanisms 301 in a one-to-one correspondence. There are also two third position identification mechanisms 303, and the third position identification mechanisms 303 are edge-finding sensors, each of which is arranged on a welding motion mechanism. In this embodiment, three-axis welding motion mechanisms are symmetrically arranged on the left and right sides of the lower box body, and the welding motion mechanism includes a translation axis, a cantilever axis connected to the translation axis, and a lifting axis connected to the cantilever axis, and the lifting axis is connected to the third position identification mechanism 303 device. Preferably, as Figure 7 As shown, in the welding device, the third welding motion mechanism 301 is replaced by an articulated robot 304 to realize the motion of the third heating welding mechanism 302 and the third position recognition mechanism 303 in three-dimensional space.

[0101] Working process: the heating component is started to preheat and keep warm the glass component to be sealed that is about to enter the first enclosed space; the inlet and outlet control mechanism controls the third upper cover 101 to rise, and the third partition lifting mechanism 203 controls the third partition 102 to rise, so as to form a first connecting channel between the top of the third lower box 103 and the third partition 102; the glass component to be sealed preheated by the preheating device is transferred from one side of the first connecting channel to the third transmission component 401, and the third transmission component 401 moves downward and places the glass component to be sealed on the third supporting component 402; then the third partition lifting mechanism 203 controls the third partition 102 to descend, and the third partition 102 is airtightly connected to the top of the third lower box 103; the inlet and outlet control mechanism controls the third upper cover 101 to descend, and the third upper cover 101 is airtightly connected to the third partition 102;

[0102] Subsequently, the second enclosed space and the first enclosed space are evacuated respectively by the exhaust device. When the vacuum degree of the second enclosed space reaches a certain value, the pressure of the first enclosed space reaches a certain value, and the pressure difference between the second enclosed space and the first enclosed space is not enough to press the sealing rubber on the third partition plate 102 down and tightly against the upper glass component to be sealed (that is, the sealing rubber is separated from the glass component to be sealed or the sealing rubber does not apply pressure to the glass component to be sealed), thereby facilitating the discharge of gas between the upper and lower glass components to be sealed. At this time, the exhaust device of the third upper cover 101 can be closed; when the vacuum degree of the second sealed space reaches and is maintained at the value required for vacuum glass sealing for a certain period of time, the second enclosed space is connected to the atmosphere, and the atmospheric pressure is used to press the sealing rubber on the third partition plate 102 tightly against the upper surface of the upper glass component to be sealed;

[0103] Subsequently, the third upper cover 101 is raised, the welding device is moved to the top of the third partition 102, the third position identification mechanism 303 of the welding device is started to determine the peripheral position of the glass component to be sealed, the third welding movement mechanism 301 drives the third heating welding mechanism 302 to move, and multiple third heating welding mechanisms 302 jointly weld a glass component to be sealed, or, in the case where multiple glass components to be sealed enter the welding device at the same time, each third heating welding mechanism 302 welds a glass component to be sealed respectively, and the glass components to be sealed are welded and sealed from different positions at the same time; after the welding is completed, the welding device is removed, the first enclosed space is connected to the atmosphere, the third partition 102 is raised, the third transmission component 401 is moved up, and the manufactured vacuum glass is transmitted from the other side of the first connecting channel. During the welding process, the temperature difference between the upper and lower layers of the glass component to be sealed is maintained by the heating component; after the welding is completed, the welding device is removed, the third transmission component 901 is moved up, and the manufactured vacuum glass is removed. The configuration and working process of the third welding movement mechanism 301 , the third heating welding mechanism 302 and the third position identification mechanism 303 are consistent with those of the first and second embodiments.

[0104] In this embodiment, in order to simplify the vacuum vitrification production process, the core functions of vacuum glass exhaust, sealing and welding are now integrated into a vacuum glass welding device, the vacuum glass exhaust port is removed, and the vacuum glass production is completed by vacuuming and sealing once, without secondary exhaust, which greatly simplifies the production process of vacuum glass. The vacuum glass welding equipment can complete the production of vacuum glass by vacuuming and sealing once with a single device, replacing the traditional vacuum glass production line without using a multi-stage vacuum chamber to achieve vacuuming and welding, greatly reducing the number of equipment, production site occupation, energy consumption and the number of operators, and can significantly reduce the production cost of vacuum glass. Further, the exhaust efficiency is taken into account, in order to deal with the problem that it takes a long time for a single device to be drawn from the atmosphere to the target vacuum degree at one time, the exhaust efficiency is improved; the welding device is placed outside the second confined space, further reducing the volume of the internal space of the second confined space; the method of exhausting the balance sealing rubber in the second confined space can quickly discharge the gas in the vacuum glass cavity, and the equipment investment and production efficiency are taken into account to the greatest extent.

[0105] Preferably, it also includes an upper cover translation mechanism for controlling the horizontal movement of the third upper cover 101, so as to facilitate the movement and welding of the welding device and facilitate the later maintenance of the welding equipment.

[0106] As another implementation, there are two glass components to be sealed entering the welding device, and each third welding motion mechanism 301 can independently weld one glass component to be sealed, and jointly and quickly complete the welding of the two glass components to be sealed.

[0107] As another embodiment, there are four third welding motion mechanisms 301 and four third heating welding mechanisms 302 respectively, there are two glass components to be sealed, and every two third welding motion mechanisms 301 weld one glass component to be sealed.

[0108] As another embodiment, there are three third welding motion mechanisms 301 and three third heating welding mechanisms 302, and there are two glass components to be sealed, wherein two third welding motion mechanisms 301 weld one glass component to be sealed together, and another third welding motion mechanism 301 welds another glass component to be sealed independently.

[0109] Example 4

[0110] like Figure 5 and Figure 6 A vacuum glass welding device shown includes a fourth upper cover 501, a fourth partition 502, a fourth lower box 503, a welding device, an in-and-out control mechanism, and a moving mechanism. The fourth partition 502 is used to form a second enclosed space and a first enclosed space that are vertically spaced apart with the fourth upper cover 501 and the fourth lower box 503. The first enclosed space is provided with a moving mechanism for moving the glass assembly to be sealed or the vacuum glass; the in-and-out control mechanism is used to control the opening and closing of the second connecting channel.

[0111] The fourth upper cover 501 is used to cover the opening at the top of the fourth lower box body 503, and is airtightly connected to the top of the fourth lower box body 503; the fourth partition plate 502 is arranged on the top of the fourth lower box body 503, and the bottom surface of the fourth partition plate 502 is airtightly connected to the fourth lower box body 503; the top of the fourth upper cover 501 is provided with an exhaust hole that is connected to the second enclosed space and used for exhausting air; the front and rear sides of the fourth lower box body 503 are both provided with exhaust holes that are connected to the first enclosed space and used for exhausting air; the exhaust hole is connected to an exhaust device for extracting gas in the second enclosed space or the first enclosed space, and controlling the vacuum degree in the second enclosed space or the first enclosed space.

[0112] The fourth partition plate 502 includes a metal frame and a sealing rubber made of metal; the metal frame is arranged along the periphery of the sealing rubber and is used to be connected to the fourth lower box 503 respectively. The sealing rubber is polyurethane, fluororubber or other composite materials with certain elasticity and tensile strength. Since the sealing rubber is flexible, the metal frame made of metal is used to receive and fix the sealing rubber, so that the force can be better applied to realize the overall lifting action of the sealing rubber.

[0113] The inlet and outlet control mechanism includes an isolation door 504. A feed port is provided on the left side of the fourth lower box 503, and a discharge port is provided on the right side. The feed port and the discharge port of the fourth lower box 503 are respectively provided with isolation doors 504. Specifically, the upper side of the isolation door 504 is rotatably connected to the fourth lower box 503, and can be turned upward to open the feed port or the discharge port, or turned downward to close the feed port or the discharge port. A second communication channel connected to the first enclosed space is formed between the feed port and the discharge port.

[0114] The moving mechanism includes a fourth transmission assembly 701 disposed in the fourth lower box 503. The fourth transmission assembly 701 is used to move the glass assembly to be sealed that enters the box from the feed port into the first closed space, or to move the welded vacuum glass out of the discharge port. The fourth transmission assembly 701 can be raised and lowered in the fourth lower box 503. The moving mechanism also includes a fourth support assembly 702. The fourth support assembly 702 is installed at the bottom of the fourth lower box 503. After the fourth transmission assembly 701 is lowered, the top of the fourth support assembly 702 can pass through the gap in the middle of the fourth transmission assembly 701 and abut against the glass assembly to be sealed or the vacuum glass. The fourth support assembly 702 is used to ensure the flat support and welding quality of the glass assembly to be sealed, so as to avoid the glass assembly to be sealed being easily broken when the fourth partition plate 502 presses the glass assembly to be sealed for welding, and welding quality problems such as uneven welding are easily caused.

[0115] A heating assembly is also provided; the heating welding mechanism includes a first heating assembly provided on the top inner wall of the fourth upper cover 501 and a second heating assembly provided on the bottom of the fourth lower box 503. The first heating assembly and the second heating assembly are used to preheat the inside of the equipment, to keep the glass assembly to be sealed delivered by the external delivery assembly warm, and to ensure the quality of welding and sealing.

[0116] In this embodiment, the first heating component and the second heating component are configured to heat the second enclosed space and the first enclosed space respectively, and control the temperature difference between the first heating space and the second heating space so that the actual measured value of the long side deflection of the manufactured vacuum glass meets the national standard.

[0117] The welding device is fixed on the lower box, or the sealing device is independently arranged outside the lower box; the welding device includes a fourth welding movement mechanism 601, a fourth heating welding mechanism 602, and a fourth position identification mechanism 603; the fourth welding movement mechanism 601 is arranged in the second enclosed space, and the bottom is connected to the top of the fourth lower box 503; the fourth welding movement mechanism 601 is installed with a fourth heating welding mechanism 602, and a fourth position identification mechanism 603 is installed on one side of the fourth heating welding mechanism 602; the fourth welding movement mechanism 601 is a three-axis welding movement mechanism in the prior art, which is used to facilitate the movement of the fourth heating welding mechanism 602 in three-dimensional space. Among them, the fourth position identification mechanism 602 is an edge-finding sensor. Among them, the number of the fourth position identification mechanism 603 and the fourth heating welding mechanism 602 can be multiple, and they are set according to the size of the glass assembly to be sealed that enters the first enclosed space at a time.

[0118] In this embodiment, a three-axis welding motion mechanism is symmetrically arranged on the left and right side walls inside the fourth upper cover 501. The three-axis welding motion mechanism includes a translation axis, a cantilever axis connected to the translation axis, and a lifting axis connected to the cantilever axis. The lifting axis is connected to the fourth position identification mechanism 603.

[0119] In this embodiment, the number of the fourth welding motion mechanism 601 and the fourth heating welding mechanism 602 are both two, and the fourth heating welding mechanism 602 is connected to the fourth welding motion mechanism 601 in a one-to-one correspondence. The number of the fourth position recognition mechanism 602 is also two, and the fourth position recognition mechanism 602 is an edge finding sensor, and each edge finding sensor is arranged on one welding motion mechanism.

[0120] Working process: the controller controls the isolation door 504 at the feed inlet to open, and the heating assembly is started to preheat and keep the glass assemblies to be sealed that are about to enter the first enclosed space; the paired glass assemblies to be sealed that have been preheated by the preheating device enter from the feed inlet, and the isolation door 504 at the feed inlet is closed; the glass assemblies to be sealed are transported to the designated position via the fourth transmission assembly 701; the fourth transmission assembly 701 descends, and the glass assemblies to be sealed are placed on the fourth support assembly 702;

[0121] The second enclosed space and the first enclosed space are evacuated respectively by the exhaust device. When the vacuum degree of the second enclosed space reaches a certain value, the pressure of the first enclosed space reaches a certain value, and the pressure difference between the second enclosed space and the first enclosed space is not enough to press the sealing rubber on the fourth partition plate 502 down and tightly against the upper glass component to be sealed (that is, the sealing rubber is separated from the glass component to be sealed or the sealing rubber does not apply pressure to the glass component to be sealed), so as to facilitate the discharge of gas between the upper and lower glass components to be sealed. At this time, the exhaust device of the fourth upper cover 501 can be closed; when the vacuum degree of the second sealed space reaches and is maintained at the value required for vacuum glass sealing for a certain period of time, the second enclosed space is connected to the atmosphere, and the atmospheric pressure is used to press the sealing rubber on the fourth partition plate 502 tightly against the upper surface of the upper glass component to be sealed;

[0122] The welding device moves to the top of the fourth partition 502, and the fourth position identification mechanism 603 of the welding device is started to determine the peripheral position of the glass component to be sealed and weld the glass component to be sealed from different positions at the same time. The welding can be adopted. After the welding is completed, the welding device returns to the position before welding; the first closed space is connected to the atmosphere, and the second closed space is evacuated, and the sealing rubber on the fourth partition 502 bulges upward; at the same time, the isolation door 504 at the discharge port is opened, and the fourth transmission component 701 is moved up and the manufactured vacuum glass is transferred out of the first closed space from the discharge port. During the welding process, the temperature difference between the upper and lower layers of the glass component to be sealed is maintained by the heating component; after the welding is completed, the welding device is moved out, the third transmission component 901 is moved up, and the manufactured vacuum glass is removed. The setting and working process of the fourth welding movement mechanism 601, the fourth heating welding mechanism 602 and the fourth position identification mechanism 603 are consistent with those of Example 1 or Example 2 or Example 3.

[0123] Compared with Embodiment 3, this embodiment has a simpler structure and is more convenient and reliable to use.

[0124] It should be noted that, based on any of the above embodiments, the heating and welding mechanisms can be set to two, three, four, five or six. Preferably, the heating and welding mechanisms are set to an even number, that is, two, four or six.

[0125] On this basis, the above-mentioned welding is carried out by driving a heating welding mechanism through a welding motion mechanism. Alternatively, a welding motion mechanism can also be set to drive two heating welding mechanisms to perform welding, but this method has high requirements for the positioning arrangement of the glass before welding, otherwise the movement flexibility of the heating welding mechanism will be subject to certain restrictions. Under this setting method, multiple heating welding mechanisms can also be realized to jointly weld a glass component to be sealed, and each heating welding mechanism can also weld a glass component to be sealed separately.

[0126] As another implementation scheme, the isolation door 504 may be used in Example 2, and the isolation door 504 may be used to replace the second partition lifting mechanism 907, so as to achieve the entry and exit of the glass components to be sealed.

[0127] As another implementation scheme, the isolation door 504 may be used in Example 3, and the isolation door 504 may be used to replace the third partition lifting mechanism 203 , so that the glass components to be sealed can be brought in and out through the isolation door 504 .

[0128] Example 5

[0129] A vacuum glass welding method, wherein a plurality of glass components to be sealed are welded and edge-sealed together in the same welding device through a plurality of heating welding mechanisms.

[0130] For at least one of the glass components to be sealed among the several glass components to be sealed that enter the same welding device, at least two of the multiple heating welding mechanisms start welding from different positions to be welded on the same glass component to be sealed, and jointly and quickly complete the welding and edge sealing of the four peripheral edges of the glass component to be sealed. For example, if there are one, two, three or four glass components to be sealed, and there are at least two heating welding mechanisms, all or one of the glass components to be sealed can be welded together with two heating welding mechanisms, or two of the glass components to be sealed can be welded together with two heating welding mechanisms. Specifically, it can be as follows. Figure 8 or Fig. 9 As described above, there are one or two glass assemblies 1002 to be sealed, and each glass assembly 1002 to be sealed is welded by two fifth heating and welding mechanisms 1001 .

[0131] If there are multiple glass components to be sealed entering the same welding device, at least one glass component to be sealed is independently welded and sealed by a heating welding mechanism. For example, if there are two, three or four glass components to be sealed, and there are at least two heating welding mechanisms, all or one of the glass components to be sealed can be independently welded by a heating welding mechanism, or two of the glass components to be sealed can be independently welded by a heating welding mechanism. Specifically, it can be as follows Fig.10 As described above, there are four glass components 1002 to be sealed and four fifth heating and welding mechanisms 1001. Each glass component 1002 to be sealed is welded independently by a fifth heating and welding mechanism 1001, and the welding of the four glass components to be sealed is completed quickly together, thereby improving welding quality and welding efficiency.

[0132] If there are multiple glass components to be sealed in the same welding device, at least two heating welding mechanisms can be used to start welding from different welding positions of the same glass component to be sealed, and the four edges of the glass component to be sealed can be welded and sealed together quickly. For the remaining glass components to be sealed, each can be welded and sealed independently by a heating welding mechanism. Specifically, Fig.11 As shown, there are three glass components 1002 to be sealed and four fifth heating and welding mechanisms. One of the glass components 1002 to be sealed is welded together with two fifth heating and welding mechanisms 1001, and the other two glass components 1002 to be sealed are welded independently with each of the fifth heating and welding mechanisms 1001, so as to quickly complete the welding of the three glass components to be sealed.

[0133] In other embodiments, several glass assemblies to be sealed are welded and edge-sealed in a vacuum chamber of welding equipment. Before welding, the vacuum chamber is continuously evacuated to make the interior of the glass assemblies to be sealed reach the target vacuum degree. Then, the position information of the edges to be welded of the several glass assemblies to be sealed is identified, and the position information is transmitted to the welding motion mechanism that drives the heating welding mechanism to move the welding, and then welding is performed.

[0134] In other embodiments, before welding, the position information of the edges to be welded of a plurality of glass components to be sealed is first identified, and the position information is transmitted to the welding motion mechanism that drives the heating and welding mechanism to move.

[0135] In other embodiments, during the welding process, the glass component to be sealed is continuously heated and kept warm.

[0136] In this embodiment, the welding method can realize the joint and rapid welding of one or more glass components to be sealed by using multiple heating welding mechanisms, reduce the time used for welding, reduce the influence of the uneven temperature of the upper and lower glass substrates on the welding process during the welding process, avoid the problems of insufficient welding melting and poor welding caused by too long welding time, the welding effect is not obvious, and there will still be phenomena such as uneven welding quality, cracking and bending after welding, etc., which can greatly improve the welding quality, the quality of vacuum glass and the production efficiency. And it can speed up the production rhythm.

[0137] The same welding equipment refers to a device that can accommodate one or more glass components to be sealed for welding at the same time, and refers to accommodating one or more glass components to be sealed for welding at one workstation, rather than a collection of multiple welding equipment that each welds a glass component to be sealed at multiple independent welding stations.

[0138] The test data are as follows:

[0139] In the actual welding process, even if insulation measures are taken in the welding equipment, the uniformity of the temperature of the upper and lower glass substrates of the glass assembly to be sealed during welding cannot be guaranteed. The uniformity of temperature has a great impact on the quality of the vacuum glass after welding. The longer the welding time, the greater the temperature difference between the upper and lower glass substrates, and the greater the bending deformation. The specific tests of the applicant are as follows:

[0140] Test 1: Three identical glass components to be sealed with a length and width of 1000*1000 and a thickness of 4mm+0.3v+4mm were respectively placed in multiple identical welding devices with a single heating welding mechanism. The single heating welding mechanism was welded at different welding speeds. Under the same insulation measures and welding power of the welding equipment, the bending deformation of the finished vacuum glass after welding was measured, and the following experimental data were obtained:

[0141]

[0142] It can be seen from the data in Table 1 that for the same glass assembly to be sealed, the longer the welding time, the greater the actual measured value of the long side deflection of the vacuum glass after welding, that is, the greater the bending deformation, that is, the influence of the welding time on the bending deformation of the vacuum glass is significant.

[0143] Test 2: Three identical glass components to be sealed, with a length and width of 1000*1000 and a thickness of 4mm+0.3v+4mm, were placed in the same welding equipment using a single heating welding mechanism. The single heating welding mechanism was welded in sequence with the same welding power and speed. The bending deformation of the finished vacuum glass after welding was measured, and the following experimental data were obtained:

[0144]

[0145] It can also be concluded from the data in Table 2 that multiple glass assemblies to be sealed in the same initial state are placed in the same equipment, and a single heating and welding mechanism is used to weld the multiple glass assemblies to be sealed one by one. The later the welding sequence is, the greater the bending deformation of the vacuum glass after welding.

[0146] Test 3: Glass components to be sealed with different lengths and widths and a thickness of 4mm+0.3v+4mm were respectively put into multiple identical welding devices with a single heating welding mechanism under the same insulation measures, welding speed and welding power. The welding equipment adopted the same insulation measures and the single heating welding mechanism was welded at the same welding speed and welding power. The bending deformation of the finished vacuum glass after welding was measured, and the following experimental data were obtained:

[0147]

[0148] It can be seen from the data in Table 3 that the larger the size of the glass assembly to be sealed, the longer the welding time, and the bending deflection of the long side of the vacuum glass after welding also tends to increase.

[0149] From Tables 1, 2 and 3, it can be seen that the larger the size of the glass assembly to be sealed and the longer the welding time, the greater the bending deformation of the vacuum glass after welding the glass assembly to be sealed. After actual measurement, the longer the welding time, the greater the maximum temperature difference between the upper and lower glass substrates during the welding process, that is, the greater the temperature non-uniformity, the greater the bending deformation of the vacuum glass after welding.

[0150] In order to reduce the bending deformation of the vacuum glass after welding, it is very necessary to shorten the welding time to reduce the temperature difference between the upper and lower glass substrates during the welding process, so as to control the bending deformation of the vacuum glass after welding. Especially for the welding of larger glass components to be sealed, it is a more necessary means to reduce the bending deformation by shortening the welding time. The use of multiple heating welding mechanisms for simultaneous welding can greatly reduce the welding time, quickly complete the welding, and reduce the impact of the diffusion of temperature non-uniformity between the upper and lower glass substrates during the welding process, thereby reducing the bending deformation of the vacuum glass.

[0151] Test 4: Three identical glass components to be sealed with a length and width of 3000*3000 and a thickness of 4mm+0.3v+4mm were welded in welding equipment with different numbers of heating and welding mechanisms. The same insulation measures, welding power and welding speed were adopted. The bending deformation of the finished products after welding was measured, and the following experimental data were obtained:

[0152]

[0153]

[0154] It can be concluded from Table 4 that, for the welding of the same larger-sized glass components to be sealed, the degree of bending deformation of the vacuum glass after welding is greatly different when multiple heating welding mechanisms are used for simultaneous welding compared with welding using a single heating welding mechanism. The more heating welding mechanisms that participate in the welding, the shorter the welding time, the smaller the actual long-side bending deflection value of the vacuum glass after welding, and the smaller the bending deformation. This further proves the necessity of using multiple heating welding mechanisms for simultaneous welding of large-sized vacuum glass, and proves the necessity of using multiple heating welding mechanisms to control the welding time and reduce the temperature difference.

[0155] Among them, welding with a single heating welding mechanism refers to a single heating welding mechanism starting from a position to be welded and completing the welding of the glass component to be sealed; welding with multiple heating welding mechanisms refers to multiple heating welding mechanisms starting welding on the same glass component to be sealed from different positions to be welded and jointly completing the welding of the glass component to be sealed.

[0156] It should be noted that it is not only applicable to metal-sealed vacuum glass, but also to glass powder-sealed vacuum glass, that is, it is applicable to vacuum glass without a vacuum port, and it is also applicable to vacuum glass with a vacuum port. In addition, in the above embodiments and drawings, the welding motion mechanism is independent of the lower box body, but alternatively, the welding motion mechanism can be directly installed on the lower box body.

[0157] It should be noted that the large and small size values ​​of the glass components to be sealed are related to the thermal insulation performance of the welding equipment, welding power, welding speed, welding method, and sealing materials. Different choices require the use of multiple heating welding mechanisms in the actual production process to ensure the size boundaries of welding quality. For example, under specific choices, if the perimeter of the edge of the glass component to be sealed is less than 6 meters, a single welding head can ensure the welding quality. However, if the perimeter of the edge is greater than 6 meters, multiple welding heads should be used for simultaneous welding to better ensure the welding quality and the quality of the vacuum glass after welding.

[0158] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A vacuum glass welding device, characterized in that: It includes a transmission component, a pressing mechanism and a welding device; The transmission component is used to transmit the glass components to be sealed; The pressing mechanism is used to press the glass assembly to be sealed; The welding device comprises a welding motion mechanism and a heating welding mechanism; the heating welding mechanism is correspondingly connected to the welding motion mechanism, and driven by the welding motion mechanism, the welding is performed on the welding part of the sealed glass assembly; the number of the heating welding mechanisms is greater than or equal to two; The heating and welding mechanism can weld the glass component to be sealed individually, and / or at least two of the heating and welding mechanisms can weld the glass component to be sealed together.

2. A vacuum glass welding device according to claim 1, characterized in that: The heating and welding mechanisms are equal in number to the welding movement mechanisms, and the heating and welding mechanisms are connected to the welding movement mechanisms in a one-to-one correspondence.

3. The vacuum glass welding equipment according to claim 1, characterized in that: It also includes a position identification mechanism, which is arranged on the welding movement mechanism; or, the position identification mechanism is arranged on the identification movement mechanism; or, the position identification mechanism is fixedly arranged above the transmission component.

4. The vacuum glass welding equipment according to claim 1, characterized in that: The pressing mechanism includes a pressing component.

5. The vacuum glass welding equipment according to claim 1, characterized in that: It also includes a lower box and an in-and-out control mechanism; the pressing mechanism includes a partition; the transmission component is arranged in the lower box, and the partition is used to construct a first enclosed space with the lower box; the first enclosed space is provided with an air extraction port for vacuuming; wherein, The first enclosed space is used to accommodate the glass assembly to be sealed, and the access control mechanism is used to control the communication between the first enclosed space and the outside and the access of the glass assembly to be sealed; The welding device is arranged outside the first enclosed space.

6. The vacuum glass welding equipment according to claim 5, characterized in that: The access control mechanism includes a partition lifting mechanism, which is arranged at the bottom of the partition and is used to control the lifting of the partition; or, The inlet and outlet control mechanism comprises an isolation door, and the lower box body is provided with a feed port and a discharge port which communicate the first enclosed space with the outside; the feed port and the discharge port are respectively provided with isolation doors.

7. The vacuum glass welding equipment according to claim 6, characterized in that: It also includes an upper cover, and the partition is used to construct a second enclosed space with the upper cover, and the second enclosed space is provided with an exhaust port for vacuuming.

8. The vacuum glass welding equipment according to claim 7, characterized in that: The welding device is arranged outside the second enclosed space; the access control mechanism further comprises an upper cover lifting mechanism; The upper cover, the partition and the lower box are arranged in sequence from top to bottom; The upper cover lifting mechanism comprises a lifting bracket and a lifting mechanism arranged on the lifting bracket. The lifting mechanism is connected with the upper cover and is used to control the lifting of the upper cover.

9. The vacuum glass welding equipment according to claim 5, characterized in that: The partition plate comprises a sealing rubber and a metal frame arranged on the outer periphery of the sealing rubber.

10. The vacuum glass welding equipment according to claim 5, characterized in that: A support assembly is also provided in the lower box body; the transmission assembly can be raised and lowered, and the glass assembly to be sealed is placed on the support assembly.

11. A vacuum glass welding method, characterized in that: Several glass components to be sealed are welded and edge-sealed together in the same welding device through multiple heating and welding mechanisms.

12. A vacuum glass welding method according to claim 11, characterized in that: At least two of the heating and welding mechanisms start welding from different positions to be welded on the same glass component to be sealed, and jointly and quickly complete the welding and edge sealing of the four peripheral edges of the glass component to be sealed.

13. A vacuum glass welding method according to claim 11 or 12, characterized in that: There are multiple glass components to be sealed, and at least one of the glass components to be sealed is independently welded and edge-sealed by one of the heating and welding mechanisms.

14. A vacuum glass welding method according to claim 11, characterized in that: Several glass components to be sealed are welded and edge-sealed in a vacuum chamber of welding equipment. Before welding, the vacuum chamber is continuously evacuated to make the interior of the glass components to be sealed reach the target vacuum degree.

15. The vacuum glass welding method according to claim 11, characterized in that: Before welding, the position information of the edges to be welded of several glass components to be sealed must be identified first, and the position information must be transmitted to a welding motion mechanism that drives the heating welding mechanism to move the welding.

16. A vacuum glass welding method according to claim 11, characterized in that: During the welding process, the glass components to be sealed are continuously heated and kept warm.

Images