Vacuum glass vacuumizing production line, vacuumizing system and technology

Abstract

The invention discloses a vacuum glass vacuumizing production line and a vacuumizing process, and belongs to the technical field of vacuum glass processing. The vacuum glass vacuumizing production line comprises a transfer system, a conveying system and a heating furnace system, and further comprises a vacuumizing mechanism, the vacuumizing mechanism comprises an opening extracting assembly, a supporting assembly and a glass pressing assembly, and an opening extracting inner cavity which drives the glass pressing assembly to press glass and has pressure is formed in the opening extracting assembly; the transfer system comprises a vacuum chuck mechanism and a transfer mechanism, and the vacuum chuck mechanism is provided with a three-axis driving device and a vacuum chuck; the conveying system comprises a vacuum vehicle, the vacuum vehicle is provided with a product carrier, and the vacuum vehicle drives the vacuum glass to be machined at different machining stations on the production line. The transfer system, the conveying system, the heating furnace system and the vacuumizing mechanism are sequentially arranged in the machining direction of the vacuum glass production line, all the mechanisms are matched with one another, efficient and automatic production of the vacuum glass vacuumizing process is achieved, and the product quality and consistency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of vacuum glass processing, and more specifically, relates to a vacuum glass vacuum production line and a vacuum process. Background Art

[0002] The vacuum layer of vacuum glass can effectively block the heat conduction between indoor and outdoor, has good thermal insulation performance, and can reduce the transmission of noise. Vacuum glass is widely used due to its superior performance. At present, in the production process of vacuum glass, the glass after edge sealing needs to go through multiple processes to complete, and then the vacuuming link is carried out. The continuity of each link is poor, and most of the vacuum glass production equipment is single furnace intermittent production, with low work efficiency, high energy consumption, and low degree of automation, which not only affects the processing efficiency of vacuum glass, but also affects its yield rate.

[0003] Moreover, in actual applications, vacuum glass needs to go through a series of complex production processes to be made, among which vacuuming is a crucial step. The purpose of vacuuming is to extract the gas between the two layers of glass to make it close to a vacuum state, thereby improving the thermal insulation performance of the glass. However, during the vacuuming process, it is easy for the glass to break, which in turn causes losses. Therefore, how to optimize the production process and vacuuming method of vacuum glass and reduce the incidence of glass breakage has become an urgent problem to be solved in the industry. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a vacuum glass vacuum production line, a vacuum system and a process.

[0005] In order to solve the above technical problems, the present invention first provides a vacuum glass vacuum production line, including a transfer system, a conveying system, a heating furnace system, and a vacuum mechanism, the vacuum mechanism includes a suction port assembly, a support assembly and a glass pressing assembly, and the suction port assembly is provided with a suction port inner cavity with pressure for driving the glass pressing assembly to press the glass;

[0006] The transfer system includes a vacuum suction cup mechanism and a transmission mechanism. The vacuum suction cup mechanism is provided with a three-axis driving device and a vacuum suction cup. The transmission mechanism drives the conveying system to move in three axes.

[0007] The conveying system includes a vacuum car, which is equipped with a product carrier. The vacuum car drives the vacuum glass to be processed at different processing stations on the production line.

[0008] Preferably, the heating furnace system is provided with a heating furnace, and closed passages through a vacuum vehicle are provided at the front and rear ends of the heating furnace, the vacuum vehicle and the internal cavity of the heating furnace form a closed space, and a heating device and a hot air circulation device are provided in the heating furnace.

[0009] Preferably, the vacuum vehicle comprises a support frame, a movable portion is provided at the lower end of the support frame, a plurality of product carriers are sequentially provided at the upper end of the support frame, a heat insulation device is provided at the lower end of the product carrier, and a vacuum pumping mechanism is provided on the vacuum vehicle.

[0010] Preferably, the drawer assembly includes a drawer housing and an air extraction pipe, the drawer inner cavity is arranged inside the drawer housing, the air extraction pipe is connected with the drawer inner cavity, and the drawer inner cavity is provided with an upper cavity and a lower cavity;

[0011] A compression spring is arranged in the inner cavity of the drawer port, and a bottom plate assembly is connected to the lower end of the drawer port shell. The bottom plate assembly comprises a spring limiting bottom plate which is in contact with the bottom end of the compression spring.

[0012] Preferably, a heating component is provided in the inner cavity of the drawer, a temperature sensor is connected to the heating component, the end of the drawer component is made of 1Cr17 material, and a sealing device is provided in the inner cavity of the drawer.

[0013] Preferably, the transfer mechanism drives the vacuum vehicle to move horizontally or vertically on the production line;

[0014] The transmission mechanism includes at least a lifting and steering platform and a transverse transmission platform, the lifting and steering platform includes a lifting platform, and the lifting platform is connected with a driving device, a transmission device, a corner device, and a guide device;

[0015] The transverse transmission platform comprises a transverse platform, on which a driving device and a transmission device are connected.

[0016] Preferably, the vacuum suction cup mechanism and the transfer mechanism cooperate with each other, and the vacuum suction cup mechanism places the vacuum glass on the vacuum vehicle of the transfer mechanism;

[0017] The vacuum suction cup mechanism includes a fixed frame, a three-axis driving device is arranged on the fixed frame, the three-axis driving device includes a horizontal moving part and a lifting moving part, the lifting moving part can be lifted and moved and can also move horizontally following the horizontal moving part, the lifting moving part is connected to the suction cup frame, the vacuum suction cup is arranged on the lifting moving part through the suction cup frame, and the vacuum suction cup is connected to a power device.

[0018] Preferably, a number of vacuum vehicles are arranged in sequence on the production line to evenly carry out the transportation of vacuum glass. The heating furnace system includes a number of heating furnaces arranged in sequence and a cooling furnace arranged at the rear end of the heating furnace. A heating furnace propulsion mechanism is provided on the heating furnace. The heating furnace propulsion mechanism provides a power source for the vacuum vehicle to move in the heating furnace. The heating furnace propulsion mechanism includes a linear drive part and a limit locking part.

[0019] Furthermore, the present invention also provides a vacuum glass evacuation process, comprising:

[0020] After the vacuum truck delivers the vacuum glass to the location, the air compressor starts to supply air to provide power source for the vacuum pumping mechanism;

[0021] Place the glass sealing device on the heating port at the upper end of the drawer assembly;

[0022] The spring outside the drawer port is compressed to raise the drawer port, and the surface of the drawer port is attached to the surface of the drawer port reserved for the vacuum glass;

[0023] Close the pneumatic valve, start the rotary vane pump, and start the second and fourth valves at the same time. The internal negative pressure makes the upper cavity of the inner cavity of the suction port fit the surface of the vacuum glass reserved suction port;

[0024] Open the fifth valve, so that the lower cavity of the inner cavity of the draw port is in a vacuum environment, the bellows in the vacuum environment inside and outside are compressed, and the heating port at the end of the upper cavity is separated from the vacuum glass surface;

[0025] Start the compound molecular pump, close the second valve, open the first valve and the third valve, and start pumping gas from the pumping port;

[0026] Turn on the heating component in the inner cavity of the drawer to start heating;

[0027] Close the fifth valve and open the sixth valve, so that the lower cavity of the suction port is in the atmospheric environment and the upper cavity is in the vacuum environment, so that the heating port of the upper cavity of the suction port acts on the vacuum glass sealing surface through the atmospheric pressure;

[0028] Turn off the heating component, close the fourth valve, and open the seventh valve to separate the air extraction port from the vacuum glass surface;

[0029] Turn off the compound molecular pump and rotary vane pump, and then turn off the air compressor.

[0030] Preferably, when the heating component of the inner cavity of the drawer is opened to start heating, the heating temperature is controlled to 750°C and the heating time is nine minutes. Then the temperature of the heating component is increased to 850°C and the heating is continued for three minutes. After closing the valve, the heating port of the upper cavity of the drawer is allowed to act on the vacuum glass sealing surface through atmospheric pressure for one minute.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention sequentially arranges a transfer system, a conveying system, a heating furnace system and a vacuuming mechanism in the processing direction of the vacuum glass production line. The mechanisms cooperate with each other to continuously process multiple processes such as vacuuming the vacuum glass, thereby realizing efficient and automated production of the vacuum glass vacuuming process and improving product quality and consistency. Moreover, the vacuum suction cup mechanism and the transmission mechanism of the transfer system are combined with a three-axis drive device to realize accurate and rapid movement of the glass on the production line. The conveying system adopts a vacuum vehicle as a carrier, on which a product carrier is provided, which can easily drive the vacuum glass to move between different processing stations on the production line, thereby realizing flexible conversion of processing stations. The production line layout is more flexible, and the processing flow can be quickly adjusted according to production needs. In addition, the automated transfer method improves production efficiency.

[0033] Moreover, the inner cavity of the suction port of the present invention drives the glass pressing assembly by applying pressure, ensuring that the glass maintains close contact during the vacuuming process, effectively preventing gas leakage, thereby improving the efficiency and quality of vacuuming. Through the clamping force and sealing design, the vacuum degree fluctuation caused by temperature fluctuation or external pressure change can be reduced, ensuring that the vacuum glass maintains a stable vacuum degree during long-term use. The vacuuming mechanism of the present invention can be closely coordinated with the heating furnace system, preheating treatment is performed before vacuuming, and the vacuum glass is heated evenly, further improving the vacuuming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0036] Figure 2 It is a structural schematic diagram of an embodiment of a drawer assembly of the present invention;

[0037] Figure 3 It is a structural schematic diagram of an embodiment of a vacuum suction cup mechanism of the present invention;

[0038] Figure 4 It is a schematic diagram of the partial connection structure of the vacuum suction cup mechanism and the transmission mechanism of the present invention;

[0039] Figure 5 It is a structural schematic diagram of a first lifting and turning platform embodiment of the present invention;

[0040] Figure 6 It is a structural schematic diagram of a second lifting and turning platform embodiment of the present invention;

[0041] Figure 7 It is a structural schematic diagram of an embodiment of a transverse transmission platform of the present invention;

[0042] Figure 8 It is a structural schematic diagram of an embodiment of a vacuum vehicle of the present invention;

[0043] Fig. 9 It is a structural schematic diagram of an embodiment of a heating furnace of the present invention;

[0044] Fig.10 It is a structural schematic diagram of an embodiment of a heating furnace propulsion mechanism of the present invention;

[0045] Fig.11 It is a schematic diagram of the axial cross-section structure of an embodiment of a drawer assembly of the present invention;

[0046] Fig.12 It is a schematic structural diagram of an embodiment of a vacuum glass evacuation system of the present invention.

[0047] Explanation of symbols in the figure:

[0048] 1. Heating furnace system; 11. Heating furnace; 12. Heating furnace body; 13. Heating tube; 14. Insulation layer; 15. Heat circulation fan; 16. Hot air duct; 17. Vacuum plate; 18. Cooling furnace;

[0049] 2. Vacuuming mechanism; 21. Drawout assembly; 22. Drawout shell; 23. Air extraction pipe; 24. Drawout inner cavity; 25. Compression spring; 26. Spring limit bottom plate; 27. Limit inner column; 28. Drawout inner cavity fixing seat; 29. ​​Heating seat; 210. Heating connection bellows; 211. Fixing plate; 212. Temperature sensor; 213. Heating rod;

[0050] 3. Vacuum suction cup mechanism; 31. Vacuum suction cup; 32. Fixed frame; 33. Suction cup frame; 34. Servo motor; 35. Transmission shaft; 36. Synchronous wheel; 37. Synchronous belt; 38. Driving motor; 39. Lifter; 310. Vacuum pump; 311. Gas tank; 312. Corner machine; 313. Contact sensor;

[0051] 4. Transmission mechanism; 41. First lifting and turning platform; 42. Second lifting and turning platform; 43. Third lifting and turning platform; 44. Fourth lifting and turning platform; 45. Lifting platform; 46. Guide rail; 47. Second driving motor; 48. Transmission sprocket; 49. Transmission chain; 410. Forward track main motor; 411. Forward track sprocket; 412. Limit block; 413. Corner machine 2; 414. Lifting motor; 415. Lifting machine 2; 416. Guide column; 417. Guide seat; 418. Rising cylinder; 419. Propelling cylinder; 420. Forward push block; 421. Horizontal transmission platform; 422. Horizontal platform; 423. Third driving motor; 424. Transmission shaft 3; 425. Transmission wheel; 426. Transmission sprocket 3; 427. Transmission chain 3;

[0052] 5. Vacuum car; 51. Support frame; 52. Product carrier; 53. Heat insulation board;

[0053] 6. Heating furnace propulsion mechanism; 61. Speed ​​reduction motor; 62. Transmission gear; 63. Transmission rack; 64. Lifting cylinder; 65. Forward push block 2; 66. Slider device;

[0054] 71. Air compressor; 72. Pneumatic pipeline; 73. Vacuum pipeline; 74. Rotary vane pump; 75. Compound molecular pump; 76. First valve; 77. Second valve; 78. Third valve; 79. Fourth valve; 80. Fifth valve; 81. Sixth valve; 82. Seventh valve; 83. Control box; 84. Control circuit; 85. Compound vacuum gauge; 86. Rotary movement control solenoid valve. DETAILED DESCRIPTION

[0055] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the following is a further detailed description of a vacuum glass vacuum production line, vacuum system and process provided by the present application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] See also Figure 1 , Figure 2 The embodiment of the present invention provides a vacuum glass vacuum production line, including a transfer system, a conveying system, a heating furnace system 1, and a vacuum mechanism, the vacuum mechanism includes a suction port assembly 21, a support assembly and a glass pressing assembly, and the suction port assembly 21 is provided with a suction port inner cavity with pressure for driving the glass pressing assembly to press the glass;

[0057] The transfer system includes a vacuum suction cup mechanism 3 and a transfer mechanism 4. The vacuum suction cup mechanism 3 is provided with a three-axis driving device and a vacuum suction cup 31. The transfer mechanism 4 drives the conveying system to move in three axes.

[0058] The conveying system includes a vacuum vehicle 5 , which is provided with a product carrier. The vacuum vehicle 5 drives the vacuum glass to be processed at different processing stations on the production line.

[0059] The present invention sequentially arranges a transfer system, a conveying system, a heating furnace system 1 and a vacuuming mechanism in the processing direction of the vacuum glass production line. The mechanisms cooperate with each other to continuously process multiple processes such as vacuuming the vacuum glass, thereby realizing efficient and automated production of the vacuum glass vacuuming process and improving product quality and consistency. Moreover, through the vacuum suction cup mechanism 3 and the transmission mechanism 4 of the transfer system, combined with a three-axis drive device, accurate and rapid movement of the glass on the production line is achieved. The conveying system adopts a vacuum vehicle 5 as a carrier, on which a product carrier is provided, which can easily drive the vacuum glass to move between different processing stations on the production line, thereby realizing flexible conversion of processing stations. The production line layout is more flexible, and the processing flow can be quickly adjusted according to production needs. In addition, the automated transfer method improves production efficiency.

[0060] Moreover, the inner cavity of the suction port of the present invention drives the glass pressing assembly by applying pressure, ensuring that the glass maintains close contact during the vacuuming process, effectively preventing gas leakage, thereby improving the efficiency and quality of vacuuming. Through the clamping force and sealing design, the vacuum degree fluctuation caused by temperature fluctuation or external pressure change can be reduced, ensuring that the vacuum glass maintains a stable vacuum degree during long-term use. The vacuuming mechanism 2 of the present invention can be closely matched with the heating furnace system 1, preheating treatment is performed before vacuuming, and the vacuum glass is heated evenly, further improving the efficiency and effect of vacuuming.

[0061] In this embodiment, the vacuum suction cup mechanism 3 and the transfer mechanism 4 cooperate with each other, and the vacuum suction cup mechanism 3 places the vacuum glass on the vacuum vehicle 5 of the transfer mechanism 4;

[0062] The vacuum suction cup mechanism 3 includes a fixed frame 32, and a three-axis driving device is arranged on the fixed frame 32. The three-axis driving device includes a horizontal moving part and a lifting moving part. The lifting moving part can be lifted and moved and can also move horizontally following the horizontal moving part. The lifting moving part is connected to a suction cup frame 33. The vacuum suction cup 31 is arranged on the lifting moving part through the suction cup frame 33, and the vacuum suction cup 31 is connected to a power device.

[0063] Specifically, Figure 3 , Figure 4As shown, the vacuum suction cup mechanism 3 can place the edge-sealed vacuum glass on the production line on the vacuum vehicle 5 of the transfer mechanism 4, and the edge-sealed vacuum glass is transferred to the production line through the vacuum suction cup mechanism 3. The horizontal moving part includes a servo motor 34, a transmission shaft 35, a synchronous wheel 36 and a synchronous belt 37. The servo motor 34 drives the transmission shaft 35 to rotate, and the transmission shaft 35 drives the synchronous wheel 36 to rotate. The synchronous wheel 36 acts on the synchronous belt 37 to drive the suction cup frame 33 to move horizontally. The lifting and lowering moving part includes a driving motor 38 and a lift 39. The driving motor 38 drives the lift 39 to move, and drives the suction cup frame 33 to move in the vertical direction.

[0064] In this embodiment, the power device connected to the suction cup frame 33 includes a vacuum pump 310 and a gas tank 311. The gas tank 311 provides a power source for the vacuum pump 310, and the vacuum pump 310 drives the vacuum suction cup 31 to perform vacuum glass suction work.

[0065] Furthermore, the vacuum suction cup mechanism 3 is also provided with a corner turning device, and the corner turning device is provided with a corner turning machine 312, and the corner turning machine 312 drives the vacuum suction cup 31 to perform a corner reversing action.

[0066] Furthermore, a contact sensor 313 is provided on the suction cup frame 33. The contact sensor 313 is used to monitor the incoming vacuum glass. When the contact sensor 313 contacts the vacuum glass and reaches the right position, it feeds back to the control system to control the moving parts to stop moving, so as to facilitate the vacuum suction cup 31 to perform subsequent suction and transfer actions.

[0067] When the vacuum suction cup mechanism 3 is in action, the servo motor 34 drives the transmission shaft 35 to rotate, the transmission shaft 35 drives the synchronous wheel 36 to rotate, the synchronous wheel 36 acts on the synchronous belt 37 to drive the suction cup frame 33 to move laterally, the driving motor 38 drives the transmission shaft to the lifting machine 39 at the four corners through the corner machine 312, and then drives the suction cup frame 33 to move downward under its action, the contact sensor 313 stops moving after sensing that the vacuum glass has dropped into place, the vacuum suction cup 31 contacts the vacuum glass, and the vacuum suction cup 31 is driven by the vacuum pump 310 to absorb the vacuum glass after edge sealing and move laterally using the gas storage tank 311.

[0068] Furthermore, in this embodiment, the transfer mechanism 4 drives the vacuum vehicle 5 to move horizontally or vertically on the production line;

[0069] The transmission mechanism 4 at least includes a lifting and steering platform and a lateral transmission platform. The lifting and steering platform includes a lifting platform, and the lifting platform is connected with a driving device, a transmission device, a turning device, and a guiding device.

[0070] Specifically, Figure 1As shown, the transmission mechanism 4 includes four lifting and turning platforms and two transverse transmission platforms distributed along the production line, and a longitudinal transmission track and a matching propulsion device are arranged between the ends of the lifting and turning platforms and the transverse transmission platforms.

[0071] The four lifting and turning platforms are respectively a first lifting and turning platform 41, a second lifting and turning platform 42, a third lifting and turning platform 43, and a fourth lifting and turning platform 44. The first lifting and turning platform 41 and the second lifting and turning platform 42 cooperate with each other and are both arranged at the front end of the heating furnace system on the production line. The third lifting and turning platform 43 and the fourth lifting and turning platform 44 cooperate with each other and are both arranged at the rear end of the heating furnace system on the production line.

[0072] In this embodiment, since the structures of the lifting and turning platforms are similar, the specific structure of the first lifting and turning platform 41 is taken as an example for detailed description. Figure 5 As shown, the lifting platform 45 of the first lifting and turning platform 41 is a horizontally arranged square supporting frame structure, and a guide rail 46 is arranged on the lifting platform 45. A driving motor 47, a transmission sprocket 48 and a transmission chain 49 are arranged at the end of the guide rail 46. A blocking device is also arranged on the lifting platform 45, and the blocking device includes a forward track main motor 410 and a forward track sprocket 411. The forward track main motor 410 drives the forward track sprocket 411 to rotate through a chain, and a limit stopper 412 is arranged at the end of the guide rail 46. The forward track main motor 410 drives the limit stopper 412 to block the vacuum vehicle 5 running to the end along the guide rail 46, and a deceleration sensor is arranged on it.

[0073] Furthermore, the corner turning device includes a corner turning machine 413, which drives the vacuum vehicle 5 to perform a corner reversing action. A lifting motor 414 and a lifting machine 415 are provided on the lifting platform 45. The lifting motor 414 is connected to the corner turning machine 413 through a coupling and a transmission shaft, and the lifting motor 414 drives the lifting machine 415 to move through the transmission shaft. The guide device includes a guide column 416 and a guide seat 417 provided at the end of the lifting platform 45 in the forward direction. The guide column 416 is supported and provided on the lifting platform 45 through the guide seat 417, and the movement of the vacuum vehicle 5 is guided and positioned by the guide device.

[0074] When the first lifting and turning platform 41 is in motion, it is first detected that the vacuum glass is placed on the vacuum vehicle 5, and the lifting motor 414 is transmitted to the corner machine 413 through the coupling, and then the transmission shaft is used for transverse transmission under the action of the elevator 415, and the driving motor 47 drives the transmission chain 48 and the transmission sprocket 49 to rotate, and the transmission shaft drives the sprocket on the other side for transmission, and the guide column 416 is used to guide the lifting process, and the forward track main motor 410 drives the forward track sprocket 411 and the limit block 412 through the chain to block the vacuum vehicle 5 during operation.

[0075] Furthermore, in the present embodiment, the structural arrangement of the second lifting and turning platform 42 and the first lifting and turning platform 41 can be the same. When the first lifting and turning platform 41 is in motion, the second lifting and turning platform 42 and the first lifting and turning platform 41 are lifted simultaneously. The lifting motor 414 is transmitted to the corner machine through a coupling, and then is laterally transmitted through the transmission shaft under the action of the lift. The driving motor drives the transmission chain 49 and the transmission sprocket 48 to rotate, and the transmission shaft drives the sprocket on the other side to transmit the transmission, and the guide column 416 is used to guide the lifting process.

[0076] As a preferred embodiment of the present invention, Figure 6 As shown, the blocking device structure of the second lifting and turning platform 42 can be differently arranged, which includes a rising cylinder 418, a thrust cylinder 419 and a forward push block 420. The rising cylinder 418 is connected to the forward push block 420, and the thrust cylinder 419 is arranged on the axially movable side of the forward push block 420. The forward push block 420 can jam the locking mechanism of the vacuum vehicle, the rising cylinder 418 can lift the forward push block 420, and the thrust cylinder 419 can push the forward push block 420 to drive the vacuum vehicle 5 to move forward.

[0077] In this embodiment, the third lifting and turning platform 43 and the fourth lifting and turning platform 44 are used to receive and transfer the vacuum vehicle 5 and the vacuum glass thereon coming out of the heating furnace system 1. The vacuum vehicle carrying the vacuum glass processed by the heating furnace system 5 arrives at the third lifting and turning platform 43, and the thrust cylinder 419 pushes the rising cylinder 418 to move forward. The rising cylinder 418 drives the forward push block 420 to lock and push the vacuum vehicle to the specified position. Then the vacuum suction cup mechanism 3 arranged on the upper part carries the vacuum glass away from the vacuum production line, and the vacuum vehicle 5 moves laterally under the driving action of the driving motor, the transmission chain and the transmission sprocket.

[0078] When the third lifting and turning platform 43 is in motion, the fourth lifting and turning platform 44 and the third lifting and turning platform 43 are lifted up at the same time, the lifting motor drives the transmission shaft and the corner machine to move, the lifting machine drives the vacuum machine to lift, and at the same time the driving motor drives the transmission chain and the transmission sprocket to rotate, the transmission shaft drives the sprocket on the other side to transmit, and then drives the vacuum vehicle to move laterally, and the guide column performs a guiding role in the lifting process.

[0079] In this embodiment, the structures of the four lifting and turning platforms are set to meet the needs of the production line. The structures of the turning platforms can be the same or different, and the settings of the local drive devices and transmission structures can be adapted and adjusted according to actual usage requirements.

[0080] In this embodiment, the transverse transmission platform 421 includes a transverse platform 422 , and the transverse platform 422 is connected to a driving device and a transmission device.

[0081] Specifically, Figure 7 As shown, the transverse platform 422 is a horizontally arranged square support frame structure, and a driving motor 3 423 is arranged on the transverse platform 422, and a transmission shaft 3 424 is connected to the driving motor 3 423, and a transmission wheel 425 is arranged at the end of the transmission shaft 3 424, and a transmission sprocket 3 426 and a transmission chain 3 427 are connected to the transmission wheel 425. The driving motor 3 423 drives the transmission shaft 3 424, the transmission wheel 425, and the transmission sprocket 3 426 to rotate, and the transmission sprocket 3 426 drives the transmission chain 3 427 to rotate through the shaft driving wheel, thereby driving the vacuum vehicle 5 thereon to move horizontally.

[0082] Furthermore, as a preferred embodiment of the present invention, the structural settings of the multiple lifting and turning platforms arranged on the production line can be the same or can be partially adjusted in structure according to the needs of the production line, and the specific number of settings can be increased or decreased according to production needs. Similarly, the structural settings of the multiple horizontal transmission platforms arranged on the production line can be the same or can be partially adjusted in structure according to the needs of the production line, and the specific number of settings can be increased or decreased according to production needs, and the driving components and transmission components specifically arranged in the transmission structure can be flexibly changed and adjusted as needed, which is convenient for conversion as needed and the production line layout is flexible.

[0083] In this embodiment, Figure 8 As shown, the vacuum vehicle 5 includes a support frame 51, a moving part is provided at the lower end of the support frame 51, a plurality of product carriers are sequentially provided at the upper end of the support frame 51, a heat insulation device is provided at the lower end of the product carrier, and the vacuum pumping mechanism 2 is provided on the vacuum vehicle 5. The vacuum vehicle 5 performs glass transfer work on each supporting platform of the production line under the action of each driving component, and at the same time provides a vacuum pumping system and controls the sealing of the air extraction port.

[0084] Specifically, the lower end of the support frame 51 is provided with a movable roller compatible with the guide rail of the transfer mechanism 4, the product carrier 52 is arranged at the upper end of the support frame 51 and the product carrier is used to support and fix the vacuum glass, and the lower end of the product carrier 52 is fixedly connected with an insulation board 53. When the vacuum vehicle 5 moves to the heating furnace system 1 for heating, the insulation board 53 at the upper end of the vacuum vehicle 5 and the internal cavity of the heating furnace system 1 form a closed space to ensure the heating airtightness and the vacuum effect. The lower end of the support frame 51 is provided with a vacuum mechanism 2.

[0085] In this embodiment, a plurality of vacuum vehicles 5 are arranged in sequence on the production line to uniformly transport the vacuum glass. The heating furnace system 5 includes a plurality of heating furnaces 11 arranged in sequence and a cooling furnace 18 arranged at the rear end of the heating furnace 11. The vacuum glass is heated by the heating furnace 11, and the cooling furnace 18 is used to reduce the temperature of the vacuum glass to prevent damage.

[0086] Specifically, twelve vacuum vehicles 5 are arranged in sequence on the production line to transport the edge-sealed vacuum glass in sequence. Six heating furnaces 11 are arranged in sequence and a heating device and a hot air circulation device are provided in the heating furnace 11. The six heating furnaces 11 are arranged in sequence front to back and connected to each other to form an automatic transportation process and an automatic heating process for the vacuum glass. At the same time, the heating furnace 11 is used to accelerate the vacuuming efficiency of the vacuum glass and maintain the vacuum degree. The cooling furnace 18 is arranged at the outlet end of the heating furnace 11 to evenly and slowly reduce the temperature of the vacuum glass to prevent the vacuum glass from bursting and breaking due to uneven cooling.

[0087] In this embodiment, Fig. 9 As shown, the front and rear ends of the heating furnace conveying channel are both provided with closed channels for passing through the vacuum vehicle. When the vacuum vehicle 5 is conveyed into the interior of the heating furnace, the vacuum vehicle is connected end to end to form a closed space with the internal cavity of the heating furnace. The heating furnace 11 includes a heating furnace body 12, and the heating furnace body 12 is provided with a plurality of heating tubes 13 and a heat preservation layer 14. The heat preservation layer 14 is used to insulate the heating furnace 11 to prevent heat loss. A heat circulation fan 15 is provided at the upper end of the heating furnace body 12, and a hot air duct 16 and a heat soaking plate 17 are provided at the lower end of the heating tube 13. When the vacuum vehicle 5 enters the interior of the heating furnace body 12, the heating tube 13 is heated, and the heat soaking plate 17 evenly distributes the heat of the heating tube 13 on the upper part of the vacuum glass. The heat circulation fan 15 drives the hot air into the hot air duct 16, and the hot air blows to the lower part of the vacuum glass, thereby circulating and heating the vacuum glass through the heating furnace 11.

[0088] Furthermore, Fig.10 As shown, the heating furnace is provided with a heating furnace propulsion mechanism 6, which provides a power source for the vacuum vehicle 5 to move in the heating furnace 11, and can make the vacuum vehicle in the heating furnace 11 move forward. The heating furnace propulsion mechanism 6 includes a linear drive part and a limit locking part, the linear drive part includes a reduction motor 61, a transmission gear 62 and a transmission rack 63, the reduction motor 61 acts on the transmission gear 62, the transmission gear 62 drives the transmission rack 63 to move forward, and drives the vacuum vehicle 5 to move linearly, the limit locking part includes a lifting cylinder 64 and a forward push block 65, and the forward push block 65 is used to lock the vacuum vehicle; the heating furnace propulsion mechanism 6 is also provided with a slider device 66, and the slider device 66 is used as a guide mechanism to locate the linear motion trajectory of the vacuum vehicle 5.

[0089] In this embodiment, six heating furnaces 11 and a cooling furnace 18 are arranged in sequence. A cooling fan and a cooling pipeline are provided in the cooling furnace 18. The cooling pipeline is connected with an upper air duct and a lower air duct. The vacuum vehicle carries the vacuum glass away from the heating furnace and enters the cooling furnace 18. The cooling fan blows cold air into the cooling pipeline, and then evenly cools the sealed vacuum glass through the upper air duct and the lower air duct.

[0090] In this embodiment, Figure 2 , Fig.11 As shown, the drawer assembly includes a drawer housing 22 and an air extraction pipe 23, a drawer inner cavity 24 is arranged inside the drawer housing 22, the air extraction pipe 23 is connected to the drawer inner cavity 24, and the drawer inner cavity 24 is provided with an upper cavity and a lower cavity;

[0091] A compression spring 25 is provided in the inner cavity 24 of the drawer port, and a bottom plate assembly is connected to the lower end of the drawer port housing 22 . The bottom plate assembly includes a spring limiting bottom plate 26 that is in contact with the bottom end of the compression spring 25 .

[0092] Specifically, two exhaust pipes 23 are provided on the suction port shell 22, the inner ends of the exhaust pipes 23 are connected with the suction port inner cavity 24, and the two exhaust pipes 23 are respectively connected to the upper cavity and the lower cavity of the suction port inner cavity 24, the suction port shell 22 is provided with a suction port outer wall, the suction port outer wall is a cylindrical structure, the lower end of the suction port shell 22 is fixedly connected to the bottom plate assembly by a plurality of connecting screws, the spring limiting bottom plate 26 is provided at the bottom end of the lower cavity, and the center of the spring limiting bottom plate 26 is provided with a limiting inner column 27 which is in contact with the lower end of the compression spring 25.

[0093] In this embodiment, the internal cavity of the drawer shell 22 is provided with a drawer inner cavity fixing seat 28, and the drawer inner cavity fixing seat 28 is coaxially arranged with the drawer shell 22. The drawer inner cavity fixing seat 28 is provided with a heating seat 29, a heating connection bellows 210 and a fixing plate 211 from top to bottom. The fixing plate 211 is fixedly connected with an internal fixing seat, and a clamping spring 25 is arranged inside the drawer inner cavity fixing seat 28, so that the drawer inner cavity can adjust the compression spring 25 through the atmospheric pressure to control the compression plate to be close to the glass, thereby ensuring the vacuum effect.

[0094] Furthermore, a heating component is provided in the inner cavity 24 of the drawer, and a temperature sensor 212 is connected to the heating component.

[0095] Specifically, the heating component is provided with a heating rod 213, which is arranged inside the drawer inner cavity fixing seat 28, and the connecting end of the temperature sensor 212 at the end of the drawer component 21 is made of 1Cr17 material, which can be adsorbed by a normal temperature magnet but not by a high temperature magnet, thereby ensuring that the patch can be smoothly detached and conveniently sealed.

[0096] Furthermore, O-rings are provided between the upper and lower ends of the suction port shell 22 and the external connection parts, and O-rings are also provided between the fixing plate 211 and the internal fixing seat. By providing a sealing device, the sealing performance of the suction port assembly is increased to further ensure the vacuum effect.

[0097] Furthermore, in the present embodiment, the structure of the inner cavity 24 of the suction port is similar to a telescopic rod structure, and the suction port is pressed against the vacuum glass seal by the telescopic rod, so that the telescopic structure of the inner cavity of the suction port can be adjusted according to actual vacuum extraction requirements, and the specific type of the compression spring and the inner cavity fixing seat structure can be adapted and adjusted according to requirements.

[0098] Furthermore, Fig.12 As shown, the present invention also provides a vacuum glass evacuation system, including an air compressor 71 and a pneumatic valve group. The air compressor 71 provides a power source for the pneumatic valve group of the system. The air compressor 71 is connected to a pneumatic pipeline 72. The ends of the pneumatic pipeline 72 are connected to each pneumatic valve group. The ends of the pneumatic valve group are connected to the upper cavity and the lower cavity of the suction port inner cavity of the suction port assembly through a pipeline. The pneumatic valve group is connected to a rotary vane pump 74 and a compound molecular pump 75 through a vacuum pipeline 73. The rotary vane pump 74 is connected to the compound molecular pump 75.

[0099] Specifically, the pneumatic valve group includes seven pneumatic valves, namely the first valve 76, the second valve 77, the third valve 78, the fourth valve 79, the fifth valve 80, the sixth valve 81, and the seventh valve 82. The first valve 76, the second valve 77, and the third valve 78 are arranged in parallel, and are all connected in series to the fourth valve 79 and the fifth valve 80 through the pneumatic pipeline 72. The seventh valve 82 is connected to the fourth valve 79, the sixth valve 81 is connected to the fifth valve 80, the end of the fourth valve 79 is connected to the upper cavity of the pumping port, and the end of the fifth valve 80 is connected to the lower cavity of the pumping port.

[0100] In this embodiment, the vacuum pumping system is further provided with a control box 83 , which controls the operation of the compound molecular pump 75 and each pneumatic valve via a control line 84 , and a compound vacuum gauge 85 is connected to the control line 84 .

[0101] Furthermore, two compound molecular pumps 75 are arranged in parallel in the vacuum system, the compound molecular pump 75 is connected to a power box, and the pneumatic pipeline 72 of the air compressor 71 is connected to a rotary movement control solenoid valve 86 .

[0102] Furthermore, the specific structure, model and working principle of the air compressor 71, compound molecular pump 75, rotary vane pump 74, pneumatic valve, compound vacuum gauge 85 and other equipment provided in this embodiment will not be repeated in the present invention. Those skilled in the art understand the functions of the equipment and can make adaptation selections according to actual usage requirements.

[0103] The present invention uses a vacuum production line and a vacuum system to perform vacuuming, which includes the following steps:

[0104] After the vacuum vehicle delivers the vacuum glass to the desired position, the air compressor 71 starts to supply air to provide a power source for the vacuum pumping mechanism;

[0105] Place the glass sealing device on the heating port at the upper end of the drawer assembly;

[0106] The spring outside the drawer port is compressed to raise the drawer port, and the surface of the drawer port is attached to the surface of the drawer port reserved for the vacuum glass;

[0107] Close the pneumatic valve, open the rotary vane pump 74, and start the second valve 77 and the fourth valve 79 at the same time. The internal negative pressure makes the upper cavity of the inner cavity of the suction port fit the surface of the vacuum glass reserved suction port;

[0108] Open the fifth valve 80, so that the lower cavity of the inner cavity of the draw port is in a vacuum environment, the bellows in the vacuum environment inside and outside are compressed, and the heating port at the end of the upper cavity is separated from the vacuum glass surface;

[0109] Start the compound molecular pump 75, close the second valve 77, start the first valve 76 and the third valve 78, and start pumping gas from the pumping port;

[0110] Turn on the heating component in the inner cavity of the drawer to start heating;

[0111] Close the fifth valve 80 and open the sixth valve 81, so that the lower cavity of the suction port is in the atmospheric environment and the upper cavity is in the vacuum environment, so that the heating port of the upper cavity of the suction port acts on the vacuum glass sealing surface through the atmospheric pressure;

[0112] Turn off the heating assembly, close the fourth valve 79, and open the seventh valve 82 to separate the air extraction port from the vacuum glass surface;

[0113] Turn off the compound molecular pump 75 and the rotary vane pump 74, and then turn off the air compressor 71.

[0114] Specifically, the vacuum glass evacuation process steps provided by the embodiment of the present invention are as follows:

[0115] S1. After the vacuum vehicle delivers the vacuum glass to the desired location, the air compressor 71 starts to supply air, and the air compressor 71 provides a power source for each pneumatic valve.

[0116] S2. Place the sealing piece of the glass sealing device on the heating port of the upper cavity of the drawer assembly, tighten the spring outside the drawer to lift the drawer, and fit the surface of the drawer port to the drawer port surface reserved for the vacuum glass.

[0117] S3. Keep all pneumatic valves in the system closed and start the rotary vane pump 74.

[0118] S4, open the second valve 77, and open the fourth valve 79 at the same time, the internal negative pressure makes the upper cavity of the inner cavity of the drawer fit the surface of the drawer reserved by the vacuum glass; then open the fifth valve 80, so that the lower cavity of the inner cavity of the drawer is also in a vacuum environment, the bellows in the vacuum environment inside and outside are compressed, and the heating port at the end of the upper cavity is separated from the surface of the vacuum glass.

[0119] S5. The resistance of the compound vacuum gauge 85 is displayed as 10 Pa, and the compound molecular pump 75 is started.

[0120] S6, close the second valve 77, open the first valve 76 and the third valve 78, start to evacuate the air from the exhaust port, and the composite vacuum gauge ionization display is 1.0×10 -5 Pa.

[0121] S7, start heating the heating component of the inner cavity of the drawer, control the heating temperature to 750°C, and the heating time to nine minutes, then increase the temperature of the heating component to 850°C and continue heating for three minutes.

[0122] S8, close the fifth valve 80, open the sixth valve 81, the lower cavity of the vacuum port is in the atmospheric environment, and the upper cavity is in the vacuum environment, so that the heating port of the upper cavity of the vacuum port acts on the vacuum glass sealing surface through the atmospheric pressure for one minute.

[0123] S9. After the glass powder is sintered, close the drawer heating plate of the heating component.

[0124] S10, close the fourth valve 79, open the seventh valve 82, and separate the air extraction port from the vacuum glass surface.

[0125] S11 , turn off the compound vacuum gauge 85 , turn off the compound molecular pump 75 , and after the compound molecular pump 75 completely stops running, turn off the rotary vane pump 74 .

[0126] S12, turning off the air compressor 71.

[0127] S13, the vacuum vehicle transports the vacuum glass away from the heating furnace and transports it to the cooling furnace to cool the vacuum glass.

[0128] The present invention provides a vacuum glass vacuum production line, a vacuum system and a process. The production line comprises a transfer system for transmitting and guiding the vacuum glass after edge sealing, a vacuum vehicle and a vacuum mechanism for transporting and vacuuming the vacuum glass, a heating furnace for accelerating the vacuum efficiency and maintaining the vacuum degree, and a cooling furnace for preventing the vacuum glass from bursting due to uneven cooling. The vacuum glass of various sizes after edge sealing is received by a vacuum suction cup mechanism and then automatically placed on the upper end of a bracket of the vacuum vehicle. A vacuum mechanism is arranged inside the vacuum vehicle, and an air suction port is pressed tightly against the vacuum glass sealing port to achieve efficient vacuuming. Six heating furnaces are arranged front and back and connected to each other, and the upper and lower surface temperatures of the vacuum glass on the vacuum vehicle are heated evenly by the heating furnaces.

[0129] Furthermore, the present invention sequentially arranges a transfer system, a conveying system, a heating furnace system and a vacuum pumping mechanism in the processing direction of the vacuum glass production line. The mechanisms cooperate with each other to continuously process multiple processes such as vacuum pumping on the vacuum glass, thereby realizing efficient and automated production of the vacuum glass vacuum pumping process and improving product quality and consistency. Moreover, through the vacuum suction cup mechanism and the transmission mechanism of the transfer system, combined with the three-axis drive device, the accurate and rapid movement of the glass on the production line is realized. The conveying system adopts a vacuum vehicle as a carrier, on which a product carrier is provided, which can easily drive the vacuum glass to move between different processing stations on the production line, thereby realizing flexible conversion of processing stations. The production line layout is more flexible, and the processing flow can be quickly adjusted according to production needs. In addition, the automated transfer method improves production efficiency.

[0130] Moreover, the inner cavity of the suction port of the present invention drives the glass pressing assembly by applying pressure, ensuring that the glass maintains close contact during the vacuuming process, effectively preventing gas leakage, thereby improving the efficiency and quality of vacuuming. Through the clamping force and sealing design, the vacuum degree fluctuation caused by temperature fluctuation or external pressure change can be reduced, ensuring that the vacuum glass maintains a stable vacuum degree during long-term use. The vacuuming mechanism of the present invention can be closely coordinated with the heating furnace system, preheating treatment is performed before vacuuming, and the vacuum glass is heated evenly, further improving the efficiency and effect of vacuuming.

[0131] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 a limitation on the present application.

[0132] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0133] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A vacuum glass vacuum production line, including a transfer system, a conveying system, and a heating furnace system, characterized in that: It also includes a vacuum pumping mechanism, which includes a suction port assembly, a support assembly and a glass pressing assembly, wherein the suction port assembly is provided with a suction port inner cavity with pressure for driving the glass pressing assembly to press the glass; The transfer system includes a vacuum suction cup mechanism and a transmission mechanism. The vacuum suction cup mechanism is provided with a three-axis driving device and a vacuum suction cup. The transmission mechanism drives the conveying system to move in three axes. The conveying system includes a vacuum vehicle, which is provided with a product carrier. The vacuum vehicle drives the vacuum glass to be processed at different processing stations on the production line.

2. A vacuum glass vacuum production line according to claim 1, characterized in that: The heating furnace system is provided with a heating furnace, and the front and rear ends of the heating furnace are provided with closed passages passing through the vacuum vehicle, the vacuum vehicle and the internal cavity of the heating furnace form a closed space, and the heating furnace is provided with a heating device and a hot air circulation device.

3. The vacuum glass vacuum production line according to claim 1, characterized in that: The vacuum vehicle comprises a support frame, a moving part is arranged at the lower end of the support frame, a plurality of product carriers are arranged in sequence at the upper end of the support frame, a heat insulation device is arranged at the lower end of the product carrier, and the vacuum pumping mechanism is arranged on the vacuum vehicle.

4. The vacuum glass vacuum production line according to claim 1, characterized in that: The drawer assembly comprises a drawer housing and an air extraction pipe, the drawer inner cavity is arranged inside the drawer housing, the air extraction pipe is connected with the drawer inner cavity, and the drawer inner cavity is provided with an upper cavity and a lower cavity; A compression spring is arranged in the inner cavity of the drawer port, and a bottom plate assembly is connected to the lower end of the drawer port shell. The bottom plate assembly comprises a spring limiting bottom plate which is in contact with the bottom end of the compression spring.

5. The vacuum glass vacuum production line according to claim 4, characterized in that: A heating component is provided in the inner cavity of the drawer, a temperature sensor is connected to the heating component, the end of the drawer component is made of 1Cr17 material, and a sealing device is provided in the inner cavity of the drawer.

6. The vacuum glass vacuum production line according to claim 1, characterized in that: The transmission mechanism drives the vacuum vehicle to move horizontally or vertically on the production line; The transmission mechanism comprises at least a lifting and steering platform and a transverse transmission platform, wherein the lifting and steering platform comprises a lifting platform, and the lifting platform is connected with a driving device, a transmission device, a turning device, and a guiding device; The transverse transmission platform comprises a transverse platform, and a driving device and a transmission device are connected to the transverse platform.

7. The vacuum glass vacuum production line according to claim 1, characterized in that: The vacuum suction cup mechanism and the transfer mechanism cooperate with each other, and the vacuum suction cup mechanism places the vacuum glass on the vacuum vehicle of the transfer mechanism; The vacuum suction cup mechanism includes a fixed frame, the three-axis driving device is arranged on the fixed frame, the three-axis driving device includes a horizontal moving part and a lifting moving part, the lifting moving part can perform lifting movement and can also follow the horizontal moving part to perform horizontal movement, the lifting moving part is connected to a suction cup frame, the vacuum suction cup is arranged on the lifting moving part through the suction cup frame, and the vacuum suction cup is connected to a power device.

8. A vacuum glass vacuum production line according to any one of claims 1 to 7, characterized in that: The production line is provided with a number of vacuum vehicles arranged in sequence to uniformly carry out the conveying of vacuum glass. The heating furnace system includes a number of heating furnaces arranged in sequence and a cooling furnace arranged at the rear end of the heating furnace. The heating furnace is provided with a heating furnace propulsion mechanism. The heating furnace propulsion mechanism provides a power source for the vacuum vehicle to move in the heating furnace. The heating furnace propulsion mechanism includes a linear drive part and a limit locking part.

9. A vacuum glass evacuation process, characterized in that: include: After the vacuum truck delivers the vacuum glass to the location, the air compressor starts to supply air to provide power source for the vacuum pumping mechanism; Place the glass sealing device on the heating port at the upper end of the drawer assembly; The spring outside the drawer port is compressed to raise the drawer port, and the surface of the drawer port is attached to the surface of the drawer port reserved for the vacuum glass; Close the pneumatic valve, start the rotary vane pump, and start the second and fourth valves at the same time. The internal negative pressure makes the upper cavity of the inner cavity of the suction port fit the surface of the vacuum glass reserved suction port; Open the fifth valve, so that the lower cavity of the inner cavity of the draw port is in a vacuum environment, the bellows in the vacuum environment inside and outside are compressed, and the heating port at the end of the upper cavity is separated from the vacuum glass surface; Start the compound molecular pump, close the second valve, open the first valve and the third valve, and start pumping gas from the pumping port; Turn on the heating component in the inner cavity of the drawer to start heating; Close the fifth valve and open the sixth valve, so that the lower cavity of the suction port is in the atmospheric environment and the upper cavity is in the vacuum environment, so that the heating port of the upper cavity of the suction port acts on the vacuum glass sealing surface through the atmospheric pressure; Turn off the heating component, close the fourth valve, and open the seventh valve to separate the air extraction port from the vacuum glass surface; Turn off the compound molecular pump and rotary vane pump, and then turn off the air compressor.

10. A vacuum glass evacuation process according to claim 9, characterized in that: When the heating component of the inner cavity of the drawer is opened and starts heating, the heating temperature is controlled to 750℃ and the heating time is nine minutes. Then the temperature of the heating component is increased to 850℃ and the heating is continued for three minutes. After closing the valve, the heating port of the upper cavity of the drawer acts on the vacuum glass sealing surface through atmospheric pressure for one minute.

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