A sealing device and method for improving the sealing arc of insulating glass

Abstract

The present invention discloses a sealing device and method for improving the sealing arc of insulating glass, which includes a lamp tube to be sealed fixing component, a flame group, and a secondary atmosphere adjusting component. The lamp tube to be sealed fixing component is arranged below the lamp tube to be sealed for fixing and driving the lamp tube to be sealed to rotate. The flame group is arranged on the lamp tube to be sealed fixing component. The secondary atmosphere adjusting component is arranged outside the lamp tube to be sealed for adjusting the pressure of the atmosphere inside the lamp tube to be sealed. This device adds a secondary atmosphere adjusting device. During the sealing process, after the bulb and the glass bead are firmly adhered with a vacuum atmosphere, a protective gas atmosphere with a certain flow rate and pressure is used for sealing, avoiding the phenomenon of melting and sticking caused by excessive pressure difference between the inside and outside of the insulating glass. Moreover, this device can stably control the flame temperature through the flame group, avoiding the appearance of poor sealing such as sharp corners and depressions caused by uncontrollable instantaneous flame temperature.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass sealing, and particularly relates to a sealing device and method for improving the sealing arc of insulating glass. Background Art

[0002] In the production of high-power short-arc mercury lamps, glass sealing is one of the cores of the lamp tube production. For glass sealing technology, in addition to controlling the sealing flame and position, it is also necessary to control the corresponding arc according to the process requirements of different lamp tubes to make the sealing between glass parts smooth and stress-free.

[0003] In the existing production of short-arc mercury lamps, in terms of glass sealing, most use the vacuum shrinkage method for sealing. Vacuum shrinkage utilizes the pressure difference and high-temperature heating to melt the glass parts. However, the disadvantage of vacuum atmosphere shrinkage is that the internal shape cannot be well controlled, and it is easy to form depressions and sharp corners with concentrated stress. Especially in the production process of high-power short-arc mercury lamps, this defect will seriously affect the internal air flow direction, heating state, and even cause the lamp to explode due to excessive stress. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a sealing device and method for improving the sealing arc of insulating glass.

[0005] A sealing device for improving the sealing arc of insulating glass provided by the present invention includes a lamp tube to be sealed fixing assembly, a flame group, and a secondary atmosphere adjusting assembly. The lamp tube to be sealed fixing assembly is arranged below the lamp tube to be sealed for fixing and driving the lamp tube to be sealed to rotate. The flame group is arranged on the lamp tube to be sealed fixing assembly, and the secondary atmosphere adjusting assembly is arranged outside the lamp tube to be sealed for adjusting the pressure of the atmosphere inside the lamp tube to be sealed.

[0006] Preferably, the secondary atmosphere adjusting assembly includes a vacuum atmosphere adjusting unit, a pressure atmosphere providing unit, and a connecting unit. Both the vacuum atmosphere adjusting unit and the pressure atmosphere providing unit are communicated with the lamp tube to be sealed through the connecting unit. The vacuum atmosphere adjusting unit includes a vacuum pump, and the vacuum pump is communicated with the connecting unit through a pipeline. A vacuum valve is arranged between the vacuum pump and the connecting unit. The pressure atmosphere providing unit includes a protective gas storage tank, and the protective gas storage tank is communicated with the connecting unit through a pipeline. An inflation valve, a flow meter, and a pressure gauge are arranged between the protective gas storage tank and the connecting unit.

[0007] Preferably, the connecting unit is a glass three-way joint. The inlet of the glass three-way joint is provided with a rotary straight-through and a quartz tube for connecting with the exhaust port of the lamp tube to be sealed. The two outlets of the glass three-way joint are respectively connected to the vacuum pump and the protective gas storage tank through pipelines.

[0008] Preferably, the lamp tube fixing assembly to be sealed includes a first chuck unit, a second chuck unit and a flame group driving unit. The first chuck unit and the second chuck unit are arranged oppositely and located at both ends of the lamp tube to be sealed for driving the lamp tube to be sealed to rotate. The flame group driving unit is arranged between the first chuck unit and the second chuck unit and is used for moving the flame group.

[0009] Preferably, the first chuck unit includes a first chuck, a first bracket and a chuck motor. The first chuck is arranged on the first bracket. The chuck motor is arranged on the bottom surface of the first bracket and is used for driving the first chuck to rotate. The second chuck unit includes a second chuck and a second bracket. The second chuck is arranged on the second bracket. The flame group driving unit includes a guide rail, a flame group fixing seat and a stepping motor. The guide rail is arranged between the first bracket and the second bracket. The flame group fixing seat is arranged in cooperation with the guide rail. The stepping motor is arranged on the bottom surface of the second bracket and is used for driving the flame group fixing seat to move along the guide rail.

[0010] The present invention also provides a sealing method for improving the sealing radian of a hollow glass, and the method includes the following steps:

[0011] Step 1, install the lamp tube to be sealed on the first chuck and the second chuck, use the flame group to bond the glass part and the metal part in the lamp tube to be sealed, and correct the concentricity of the lamp tube to be sealed by adjusting the position of the flame group.

[0012] Step 2, evacuate the air in the quartz bulb of the lamp tube to be sealed after correction by performing the operations of filling with a protective gas and evacuating the vacuum.

[0013] Step 3, adjust the internal and external air pressures of the quartz bulb of the lamp tube to be sealed to reach dynamic balance, and use the flame group to seal the glass part and the glass bulb of the lamp tube to be sealed to complete the sealing of the hollow glass.

[0014] In the above solution, the specific content of step 2 includes:

[0015] Step 2.1, close the vacuum valve, set the pressure of the protective gas filled to be 0.5 MPa and the flow rate to be 0.2 m 3 / h, open the inflation valve, and fill the quartz bulb of the lamp tube to be sealed with the protective gas until the air pressure in the quartz bulb of the lamp tube to be sealed reaches 1 atmospheric pressure, and stop inflation.

[0016] Step 2.2, close the inflation valve, open the vacuum valve, and start the vacuum pump to evacuate the gas in the quartz bulb of the lamp tube to be sealed until the vacuum degree in the quartz bulb of the lamp tube to be sealed is lower than 0.1 Pa, and stop evacuating the vacuum.

[0017] Step 2.3, repeat the above Step 2.2 and Step 2.3 three times in sequence.

[0018] In the above solution, the specific content of Step 3 is as follows: Set the pressure and flow rate of the protective gas to be filled, open the inflation valve, and fill the quartz bulb of the to-be-sealed lamp tube with the protective gas until the internal and external air pressures of the quartz bulb of the to-be-sealed lamp tube reach dynamic balance. Then, turn on the flame group, set the sealing distance, the moving speed of the flame group, and the sealing time, and use the set flame group to seal the glass part and the glass bulb of the to-be-sealed lamp tube. After that, perform annealing treatment on the sealed to-be-sealed lamp tube, and thus complete the sealing of the insulating glass.

[0019] Among them, the parameters set for the protective gas in Step 3 are: the gas pressure is 0.5 MPa and the flow rate is 0.2 m 3 / h; the sealing length is 25 mm; the parameters of the flame group are set as: the moving speed is 0 - 20 m / s and the sealing time is 5 min - 16 min.

[0020] In the above solution, the rotation speed of the first chuck in Step 1 is 20 revolutions per minute, the flame group is a hydrogen and oxygen flame group, and the parameters of the flame group are: the hydrogen pressure is 0.7 MPa, the hydrogen flow rate is 6 m 3 / h, the oxygen pressure is 0.6 MPa, the oxygen flow rate is 5 m 3 / h, the moving speed is 7 m / s, the sealing time is 5 min; the set sealing length is 25 mm.

[0021] Compared with the prior art, the present invention provides a sealing device and method for improving the sealing arc of insulating glass, which includes a to-be-sealed lamp tube fixing component, a flame group, and a secondary atmosphere adjusting component. The to-be-sealed lamp tube fixing component is arranged below the to-be-sealed lamp tube and is used to fix and drive the to-be-sealed lamp tube to rotate. The flame group is arranged on the to-be-sealed lamp tube fixing component, and the secondary atmosphere adjusting component is arranged outside the to-be-sealed lamp tube and is used to adjust the pressure of the internal atmosphere of the to-be-sealed lamp tube. In this way, the problems of unstable internal air flow, too long pressure increase time, and lamp explosion caused by sharp corners and depressions of the glass sealing part are solved. The present device adds a secondary atmosphere adjusting device, specifically a vacuum atmosphere providing device and a pressure atmosphere providing device. During the sealing process, after the bulb and the glass bead are firmly adhered with a vacuum atmosphere, a protective gas atmosphere with a certain flow rate and pressure is used for sealing, avoiding the phenomenon that the insulating glass is easily melted and adhered due to too large internal and external pressure differences. And the present device can stably control the flame temperature through the flame group, avoiding the occurrence of poor sealing such as sharp corners and depressions caused by uncontrollable instantaneous flame temperature. Using the present device to seal the insulating glass can shorten the pressure increase time, thereby improving the quality of the sealed lamp tube. Brief Description of the Drawings

[0022] Figure 1 It is a usage state diagram of a sealing device for improving the sealing arc of insulating glass provided by an embodiment of the present invention;

[0023] Figure 2 It is an effect diagram of sealing the mercury lamp product KM-5000MF of our company by using the present invention in an embodiment of the present invention;

[0024] Figure 3 It is an effect diagram of not using the present invention to seal the mercury lamp product KM-5000MF of our company in an embodiment of the present invention.

[0025] The reference numerals are as follows:

[0026] 1 - Fixing assembly for the lamp tube to be sealed, 11 - First chuck unit, 111 - First chuck, 112 - First bracket, 113 - Chuck motor, 12 - Second chuck unit, 121 - Second chuck, 122 - Second bracket, 13 - Flame group driving unit, 131 - Guide rail, 132 - Stepper motor, 2 - Flame group, 3 - Secondary atmosphere regulating assembly, 31 - Vacuum atmosphere regulating unit, 311 - Vacuum pump, 312 - Vacuum valve, 32 - Pressure atmosphere providing unit, 321 - Protection gas storage tank, 322 - Inflation valve, 323 - Flow meter, 324 - Pressure gauge, 33 - Connection unit, 331 - Glass tee, 332 - Rotary straight-through, 333 - Quartz tube, 4 - Quartz bulb, 5 - Glass part, 6 - Metal part, 7 - Exhaust port. Detailed Description of the Embodiment

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] An embodiment of the present invention provides a sealing device for improving the sealing arc of insulating glass, as Figure 1 shown, which includes a fixing assembly 1 for the lamp tube to be sealed, a flame group 2 and a secondary atmosphere regulating assembly 3. The fixing assembly 1 for the lamp tube to be sealed is arranged below the lamp tube to be sealed for fixing and driving the lamp tube to be sealed to rotate. The flame group 2 is arranged on the fixing assembly 1 for the lamp tube to be sealed, and the secondary atmosphere regulating assembly 3 is arranged outside the lamp tube to be sealed for regulating the pressure of the atmosphere inside the lamp tube to be sealed.

[0029] Among them, the lamp tube fixing assembly 1 to be sealed includes a first chuck unit 11, a second chuck unit 12 and a flame group driving unit 13. The first chuck unit 11 and the second chuck unit 12 are arranged facing each other and are located at both ends of the lamp tube to be sealed for driving the lamp tube to be sealed to rotate.

[0030] The first chuck unit 11 includes a first chuck 111, a first bracket 112 and a chuck motor 113. The first chuck 111 is arranged on the first bracket 112. The chuck motor 113 is arranged on the bottom surface of the first bracket 112 and is used for driving the first chuck 111 to rotate. The second chuck unit 12 includes a second chuck 121 and a second bracket 122. The second chuck 121 is arranged on the second bracket 122.

[0031] The flame group driving unit 13 is arranged between the first chuck unit 11 and the second chuck unit 12 and is used for moving the flame group 2.

[0032] The flame group driving unit 13 includes a guide rail 131, a flame group fixing seat and a stepping motor 132. The guide rail 131 is arranged between the first bracket 112 and the second bracket 122. The flame group fixing seat is arranged in cooperation with the guide rail 131. The stepping motor 132 is arranged on the bottom surface of the second bracket 122 and is used for driving the flame group fixing seat to move along the guide rail 131.

[0033] Among them, the secondary atmosphere adjusting assembly 3 includes a vacuum atmosphere adjusting unit 31, a pressure atmosphere providing unit 32 and a connecting unit 33. Both the vacuum atmosphere adjusting unit 31 and the pressure atmosphere providing unit 32 are communicated with the lamp tube to be sealed through the connecting unit 33. The vacuum atmosphere adjusting unit 31 includes a vacuum pump 311. The vacuum pump 311 is communicated with the connecting unit 33 through a pipeline. A vacuum valve 312 is arranged between the vacuum pump 311 and the connecting unit 33. The pressure atmosphere providing unit 32 includes a protective gas storage tank 321. The protective gas storage tank 321 is communicated with the connecting unit 33 through a pipeline. An inflation valve 322, a flowmeter 323 and a pressure gauge 324 are arranged between the protective gas storage tank 321 and the connecting unit 33.

[0034] The connecting unit 33 is a glass three-way 331. A rotary straight-through 332 and a quartz tube 333 are arranged at the inlet of the glass three-way 331 for connecting with the exhaust port of the lamp tube to be sealed. The two outlets of the glass three-way 331 are respectively connected with the vacuum pump 311 and the protective gas storage tank 321 through pipelines.

[0035] The settings of the vacuum atmosphere regulating unit 31 and the pressure atmosphere providing unit 32 can control the pressure and flow rate of the protective gas filled into the quartz bulb of the lamp tube to be sealed, so as to keep the internal and external air pressures of the quartz bulb of the lamp tube to be sealed in dynamic balance, avoiding the phenomenon of melting and sticking easily caused by too large internal and external pressure differences. In addition, during sealing, by controlling the pressure of the protective gas filled into the quartz bulb of the lamp tube to be sealed, it is beneficial to the stress concentration part and deformation concentration part during sealing, so as to be able to shorten the pressure rising time and obtain a sealed lamp tube with good quality.

[0036] The embodiment of the present invention also provides a sealing method for improving the sealing arc of insulating glass, and the method includes the following steps:

[0037] Step 1, install the lamp tube to be sealed on the first chuck and the second chuck, use a flame group to stick firmly the glass part and the metal part in the lamp tube to be sealed, and correct the concentricity of the lamp tube to be sealed by adjusting the position of the flame group;

[0038] In the above step, the rotation speed of the first chuck is 20 revolutions / min, the flame group is a hydrogen and oxygen flame group, and the parameters of the flame group are: hydrogen pressure is 0.7 MPa, hydrogen flow rate is 6 m 3 / h, oxygen pressure is 0.6 MPa, oxygen flow rate is 5 m 3 / h, moving speed is 7 m / s, sealing time is 5 min; set the sealing length to 25 mm.

[0039] Step 2, remove the air in the quartz bulb of the corrected lamp tube to be sealed by performing the operations of filling with protective gas and evacuating;

[0040] Step 2.1, close the vacuum valve, set the pressure of the filled protective gas to 0.5 MPa and the flow rate to 0.2 m 3 / h, open the inflation valve, and fill the quartz bulb of the lamp tube to be sealed with the protective gas until the air pressure in the quartz bulb of the lamp tube to be sealed reaches 1 atmospheric pressure, then stop inflation;

[0041] Step 2.2, close the inflation valve, open the vacuum valve, and start the vacuum pump to remove the gas in the quartz bulb of the lamp tube to be sealed until the vacuum degree in the quartz bulb of the lamp tube to be sealed is lower than 0.1 Pa, then stop vacuum pumping;

[0042] Step 2.3, repeat the above step 2.2 and step 2.3 three times in sequence;

[0043] Step 3, adjust the internal and external air pressures of the quartz bulb of the lamp tube to be sealed to reach dynamic balance, and use a flame group to seal the glass part and the glass bulb of the lamp tube to be sealed to complete the sealing of the insulating glass.

[0044] The above steps are specifically as follows: Set the pressure and flow rate of the protective gas to be filled, open the gas filling valve, and fill the quartz bulb of the lamp tube to be sealed with the protective gas until the internal and external air pressures of the quartz bulb of the lamp tube to be sealed reach dynamic equilibrium. Then, turn on the flame group, set the sealing distance, the moving speed of the flame group, and the sealing time, and use the set flame group to seal the glass part and the glass bulb of the lamp tube to be sealed. Finally, perform annealing treatment on the sealed lamp tube to be sealed, thus completing the sealing of the insulating glass.

[0045] Moreover, the parameters set for the protective gas in the above steps are: the gas pressure is 0.5 MPa, and the flow rate is 0.2 m 3 / h; the sealing length is 25 mm; the parameters of the flame group are set as: the moving speed is 0 - 20 m / s, and the sealing time is 5 min - 16 min.

[0046] Compared with the existing vacuum shrinkage sealing method, the problems of unstable internal air flow, too long pressure rise time, and lamp explosion caused by sharp corners and depressions in the glass sealing parts are solved. This device is equipped with a secondary atmosphere adjustment device, specifically a vacuum atmosphere providing device and a pressure atmosphere providing device. During the sealing process, after the bulb and the glass bead are firmly adhered in a vacuum atmosphere, a protective gas atmosphere with a certain flow rate and pressure is used for sealing, avoiding the phenomenon that the insulating glass is easily melted and adhered due to excessive internal and external pressure differences. And this device can stably control the flame temperature through the flame group, avoiding the occurrence of poor sealing such as sharp corners and depressions caused by uncontrollable instantaneous flame temperature. Using this device to seal the insulating glass can shorten the pressure rise time, thereby improving the quality of the sealed lamp tube.

[0047] Example 1

[0048] Use the sealing device and method for improving the sealing arc of insulating glass provided by the present invention to seal the mercury lamp of KM - 5000MF. The specific process is as follows:

[0049] Step 1, clamp the KM - 5000MF lamp tube to be sealed on the first chuck 111, ensure it is firmly clamped, bond the anode assembly, and adjust the position of the anode assembly inside the KM - 5000MF lamp tube to be sealed according to the drawing requirements, so that the anode assembly is positioned at the center line of the quartz bulb; adjust the hydrogen and oxygen of the flame group 2, where the hydrogen pressure is 0.7 MPa and the flow rate is 6 m 3 / h; the oxygen is 0.6 MPa and the flow rate is 5 m 3 / h; Turn on the chuck motor 113, adjust the rotation speed of the first chuck 111 to 20 revolutions per minute, drive the KM-5000MF lamp tube to be sealed to rotate through the first chuck 111 and the second chuck 121, further adjust the moving speed of the flame group 2 to 7 m / s, the sealing time to 1 minute, set the sealing distance to 25 mm, and bond the glass and the anode assembly; Continue to turn on the flame group 2, and adjust the appropriate flame and position, and correct the concentricity of the KM-5000MF lamp tube to be sealed according to the drawing requirements, so that when the glass part 5, the metal part 6, and the quartz bulb 4 rotate on the first chuck 111, the concentricity is kept within ±0.5 mm;

[0050] According to the above steps, bond the cathode assembly, and according to the drawing requirements, the distance (arc distance) between the cathode tip and the anode tip of the KM-5000MF lamp tube to be sealed reaches 7.5 ± 0.25 mm;

[0051] Finally, perform preliminary annealing on the entire lamp tube;

[0052] Step 2, open the exhaust port 7 of the KM-5000MF lamp tube to be sealed, connect the exhaust port 7 to the rotary through 332 through the quartz tube 333, and ensure reliable sealing; Close the vacuum valve 312, set the protective gas pressure to 0.5 MPa and the flow rate to 0.2 m 3 / h, open the inflation valve 322, and fill the inside of the KM-5000MF lamp tube to be sealed with a protective gas (nitrogen or argon) until the inflation pressure inside the quartz bulb 4 of the KM-5000MF lamp tube to be sealed reaches 1 atmospheric pressure, and stop filling the protective gas; Close the inflation valve 322, open the vacuum valve 312, turn on the vacuum pump 311, and evacuate the quartz bulb 4 until the vacuum degree inside the quartz bulb 4 is lower than 0.1 Pa, and stop evacuating; Repeat the two steps of filling the protective gas and evacuating three times in sequence, aiming to purify the lamp tube environment and prevent oxidation of the lamp tube materials due to the entry of air;

[0053] Step 3, close the vacuum valve 312, turn off the vacuum pump 311, adjust the pressure of the protective gas filled to 0.5 MPa and the flow rate to 0.1 m 3 / h, open the inflation valve 322 to keep the internal atmosphere of the quartz bulb 4 in a state of having a certain air pressure, that is, the internal and external air pressures of the quartz bulb 4 reach dynamic balance; Turn on the flame group 2, set the sealing distance to 25 mm, set the moving speed of the flame group 2 to 7 m / s, and the sealing time to 5 minutes, and melt the glass part 5 and the quartz bulb 4 so that they are completely melted into a whole. Finally, perform flame annealing treatment on the entire KM-5000MF lamp tube, that is, complete the sealing of the KM-5000MF lamp tube. After the sealing is completed, put the sealed KM-5000MF lamp tube into an annealing furnace for stress relief annealing treatment.

[0054] The effect diagrams of sealing the mercury lamp of KM-5000MF using a sealing device and method provided by the present invention for improving the sealing arc of insulating glass and the effect diagrams without using the present invention for sealing are as follows Figure 2 and 3 shown. The effect diagram is the effect diagram at point A in Figure 1 . It can be seen from the figure that when the mercury lamp of KM-5000MF is sealed without using the present invention, the quartz bulb shows a depression after sealing, the distance between the quartz bulb and the metal part is only 2 mm, and a 65° sharp angle also appears on the quartz bulb. However, when the mercury lamp of KM-5000MF is sealed using the present invention, the arc of the quartz bulb is uniform, the distance between the quartz bulb and the metal part is 4 mm, and no defects such as depressions and sharp angles appear on the quartz bulb. It can be seen that the present invention can significantly improve the sealing effect.

[0055] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A sealing method for improving the sealing arc of insulating glass, characterized in that, A sealing device for improving the sealing arc of insulating glass, which comprises a lamp tube to be sealed fixing component, a flame group and a secondary atmosphere adjusting component. The lamp tube to be sealed fixing component is arranged below the lamp tube to be sealed for fixing and driving the lamp tube to be sealed to rotate. The flame group is arranged on the lamp tube to be sealed fixing component. The secondary atmosphere adjusting component is arranged outside the lamp tube to be sealed for adjusting the pressure of the atmosphere inside the lamp tube to be sealed. The secondary atmosphere adjusting component includes a vacuum atmosphere adjusting unit, a pressure atmosphere providing unit and a connecting unit. Both the vacuum atmosphere adjusting unit and the pressure atmosphere providing unit are communicated with the lamp tube to be sealed through the connecting unit. The vacuum atmosphere adjusting unit includes a vacuum pump, and the vacuum pump is communicated with the connecting unit through a pipeline. A vacuum valve is arranged between the vacuum pump and the connecting unit. The pressure atmosphere providing unit includes a protective gas storage tank, and the protective gas storage tank is communicated with the connecting unit through a pipeline. An inflation valve, a flow meter and a pressure gauge are arranged between the protective gas storage tank and the connecting unit. The connecting unit is a glass three-way joint. A rotary straight-through joint and a quartz tube are arranged at the inlet of the glass three-way joint for connecting with the exhaust port of the lamp tube to be sealed. The two outlets of the glass three-way joint are respectively connected with the vacuum pump and the protective gas storage tank through pipelines. Its method includes the following steps: Step 1: Install the lamp tube to be sealed on the chuck, use the flame group to bond the glass parts and metal parts inside the lamp tube to be sealed, and correct the concentricity of the lamp tube to be sealed by adjusting the position of the flame group; Step 2: Exhaust the air in the quartz bulb of the lamp tube to be sealed after correction by performing the operations of filling protective gas and evacuating; Step 3: Adjust the internal and external air pressures of the quartz bulb of the lamp tube to be sealed to reach dynamic balance, and use the flame group to seal the glass parts and the glass bulb of the lamp tube to be sealed to complete the sealing of the insulating glass.

2. The sealing method for improving the sealing arc of insulating glass according to claim 1, characterized in that, The lamp tube to be sealed fixing component includes a first chuck unit, a second chuck unit and a flame group driving unit. The first chuck unit and the second chuck unit are arranged opposite to each other and are located at both ends of the lamp tube to be sealed for driving the lamp tube to be sealed to rotate. The flame group driving unit is arranged between the first chuck unit and the second chuck unit and is used for moving the flame group.

3. The sealing method for improving the sealing arc of insulating glass according to claim 2, characterized in that, The first chuck unit includes a first chuck, a first bracket and a chuck motor. The first chuck is arranged on the first bracket. The chuck motor is arranged on the bottom surface of the first bracket and is used for driving the first chuck to rotate. The second chuck unit includes a second chuck and a second bracket. The second chuck is arranged on the second bracket. The flame group driving unit includes a guide rail, a flame group fixing seat and a stepping motor. The guide rail is arranged between the first bracket and the second bracket. The flame group fixing seat is arranged in cooperation with the guide rail. The stepping motor is arranged on the bottom surface of the second bracket and is used for driving the flame group fixing seat to move along the guide rail.

4. A sealing method for improving the sealing arc of insulating glass according to claim 1, characterized in that, The specific content of Step 2 includes: Step 2.1: Close the vacuum valve, set the pressure of the protective gas to be filled as 0.5 MPa and the flow rate as 0.2 m³ / h, open the gas filling valve, and fill the quartz bulb of the to-be-sealed lamp tube with the protective gas until the air pressure inside the quartz bulb of the to-be-sealed lamp tube reaches 1 atmospheric pressure, then stop gas filling; Step 2.2: Close the gas filling valve, open the vacuum valve, turn on the vacuum pump to exhaust the gas inside the quartz bulb of the to-be-sealed lamp tube until the vacuum degree inside the quartz bulb of the to-be-sealed lamp tube is lower than 0.1 Pa, then stop vacuum pumping; Step 2.3: Repeat Step 2.2 and Step 2.3 three times in sequence.

5. A sealing method for improving the sealing arc of insulating glass according to claim 4, characterized in that, The specific content of Step 3 is as follows: Set the pressure and flow rate of the protective gas to be filled, open the gas filling valve, fill the quartz bulb of the to-be-sealed lamp tube with the protective gas until the internal and external air pressures of the quartz bulb of the to-be-sealed lamp tube reach dynamic equilibrium, turn on the flame group, set the sealing length, the moving speed of the flame group and the sealing time, use the set flame group to seal the glass part and the glass bulb of the to-be-sealed lamp tube, and perform annealing treatment on the sealed to-be-sealed lamp tube, thus completing the sealing of the insulating glass.

6. A sealing method for improving the sealing arc of insulating glass according to claim 5, characterized in that, The set parameters of the protective gas in Step 3 are: the gas pressure is 0.5 MPa and the flow rate is 0.2 m³ / h; the sealing length is 25 mm; the parameters of the flame group are set as: the moving speed is 0 - 20 m / s and the sealing time is 5 min - 16 min.

7. A sealing method for improving the sealing arc of insulating glass according to claim 3, characterized in that, In the step 1, the rotation speed of the first chuck is 20 revolutions per minute, the flame group is a hydrogen and oxygen flame group, and the parameters of the flame group are: hydrogen pressure is 0.7 MPa, hydrogen flow rate is 6 m 3 / h, oxygen pressure is 0.6 MPa, oxygen flow rate is 5 m 3 / h, moving speed is 7 m / s, sealing time is 5 minutes; the set sealing length is 25 mm.

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