A curved surface glass tempering furnace

Abstract

The present invention relates to the technical field of glass processing, and particularly to a curved surface glass tempering furnace. By setting a fixed curved surface top pressing and forming machine and a movable heating furnace and a cooling furnace, the problem of low dimensional accuracy of the curved surface arc in the existing curved surface glass tempering process can be solved. The movable heating furnace and the cooling furnace can respectively heat and soften and rapidly cool the glass placed on the curved surface top pressing and forming machine, so as to ensure the requirements of the tempering process of the glass. The upper die core and the adjustable die core in the curved surface top pressing and forming machine can only move up and down, so that the hot blank of the glass formed by hot pressing is always placed on the adjustable die core and the lower die core, and the adjustable die core and the lower die core can always support the hot blank of the glass, effectively avoiding the deformation of the hot blank of the curved surface glass under the action of its own gravity, thereby affecting the dimensional accuracy of the curved surface of the hot blank of the curved surface glass after cooling and forming, ensuring that the stresses in different parts of the curved surface glass are the same, greatly improving the uniformity, and avoiding self-damage and self-cracking of the glass.

Description

Technical Field

[0001] The present invention relates to the technical field of glass processing, and particularly to a curved glass tempering furnace. Background Art

[0002] In contemporary people's lives, the use of tempered glass can be seen everywhere. Existing tempered glass is heated by high-temperature gas and then processed by rapid cooling technology, so that the surface layer of the cooled glass forms compressive stress and the inside of the glass forms tensile stress, thereby improving the strength of the glass.

[0003] Curved glass is a special glass product with a curved surface. However, the existing curved glass tempering method has the problem of low dimensional accuracy of the curved arc size. Even for curved glass produced in the same batch, not only is the overlapping fit of the curved glass poor, but also the stress at different parts of the curved glass is different, with poor uniformity, and it is easy to break and crack spontaneously. After careful observation, analysis and research on the existing curved glass tempering processing method by the applicant, it is found that after the glass hot blank is hot-pressed and formed, two spaced rods are used to support the softened curved glass hot blank. Since the just hot-pressed glass hot blank is still in a softened state, at this time, when two spaced rods are used to lift the two side edges of the glass hot blank, the curved glass hot blank will naturally deform under the action of its own gravity, which makes the dimensional accuracy of the curved surface of the curved glass hot blank after cooling and forming inconsistent. This will inevitably lead to different stresses at different parts of the curved glass, poor uniformity, and easy breakage and spontaneous cracking. Summary of the Invention

[0004] (I) Technical Problem

[0005] The purpose of the present invention is to provide a curved glass tempering furnace to solve the problem of low dimensional accuracy of the curved arc size in the existing curved glass tempering process.

[0006] (II) Technical Solution

[0007] To achieve the above purpose, the present invention provides the following technical solution:

[0008] A curved surface glass tempering furnace, comprising a heating component, a cooling component, a curved surface top pressing and forming machine, and a tempering processing table. The heating component, the cooling component, and the curved surface top pressing and forming machine are all arranged on the tempering processing table. The heating component and the cooling component are respectively movably arranged on the left and right sides of the curved surface top pressing and forming machine, and the heating component and the cooling component are arranged in central symmetry with respect to the curved surface top pressing and forming machine. The heating component includes a heating furnace, a first closing plate, a first threaded rod, a first belt, a first rotating shaft, a first gear, and a first motor. The heating furnace is a cavity with an open right end. The first closing plate is movably arranged on the right side of the heating furnace, and the first closing plate is adapted to the right end of the heating furnace for closing the heating furnace. A first threaded sleeve is fixedly arranged at the bottom of the front side plate of the heating furnace. The first threaded sleeve is threadedly connected with the first threaded rod. The left end of the first threaded rod is fixedly connected with the first motor. The right end of the first threaded rod is movably connected with the left end of the first rotating shaft through the first belt. The first gear is fixedly sleeved on the right end of the first rotating shaft. A first rack plate is fixedly arranged at the front side end of the first closing plate. The first rack plate is meshed with the first gear. The curved surface top pressing and forming machine includes an upper die core, an adjustable die core, a lower die core, a third threaded rod, a third belt, and a third motor. The upper die core and the lower die core are respectively located above and below the adjustable die core. At least one adjustable die core is provided. Two third threaded rods are respectively movably arranged on the left and right sides of the lower die core. The lower die core is rotationally connected with the third threaded rod. The upper die core and the adjustable die core are both threadedly connected with the third threaded rod. The pitch of the thread on the third threaded rod gradually decreases from top to bottom. The two third threaded rods are movably connected through the third belt. The bottom end of one third threaded rod is fixedly connected with the third motor.

[0009] Specifically, a heating machine and heating tubes are further arranged on the heating furnace. The heating machine and the heating tubes are fixedly connected. The heating machine is located at the top of the heating furnace, and the heating tubes are located on the inner wall of the heating furnace.

[0010] Specifically, the cooling component includes a cooling furnace, a second closing plate, a second threaded rod, a second belt, a second rotating shaft, a second gear, and a second motor. The cooling furnace is a cavity with an open left end. The second closing plate is movably arranged on the left side of the cooling furnace, and the second closing plate is adapted to the left end of the cooling furnace for closing the cooling furnace.

[0011] Specifically, a second threaded sleeve is fixedly arranged at the bottom of the rear side plate of the cooling furnace. The second threaded sleeve is in threaded connection with a second threaded rod. The right end of the second threaded rod is fixedly connected to a second motor. The left end of the second threaded rod is movably connected to the right end of a second rotating shaft through a second belt.

[0012] Specifically, the second gear is fixedly sleeved on the left end of the second rotating shaft. A second rack plate is fixedly arranged at the rear side end of the second closing plate. The second rack plate is in meshing connection with the second gear.

[0013] Specifically, a cooler and a condensing pipe are further arranged on the cooling furnace. The cooler is fixedly connected to the condensing pipe. The cooler is located at the top end of the cooling furnace. The condensing pipe is located on the inner wall of the cooling furnace.

[0014] Specifically, a table board and a base are arranged on the toughening processing table. The table board is fixedly arranged on the base. The lower die core is fixedly arranged on the table board. The bottom end of the third threaded rod penetrates through the table board and then extends into the base. The third motor is fixedly arranged in the base.

[0015] Specifically, a first moving groove, a second moving groove, a first movable groove and a second movable groove are arranged on the table board. The first moving groove and the second moving groove are symmetrically arranged on the front and rear sides of the lower die core in a central symmetry manner. The second movable groove and the first movable groove are symmetrically arranged on the left and right sides of the lower die core in a central symmetry manner. And the first movable groove and the second movable groove extend into the base.

[0016] Specifically, the first threaded rod and the first threaded sleeve are movably arranged in the first moving groove. The left end of the first threaded rod penetrates through the table board and then extends to the left end of the table board. The first motor is fixedly arranged at the left end of the table board. The second threaded rod and the second threaded sleeve are movably arranged in the second moving groove. The right end of the second threaded rod penetrates through the table board and then extends to the right end of the table board. The second motor is fixedly arranged at the right end of the table board.

[0017] Specifically, the first closing plate is movably arranged in the first movable groove. The second closing plate is movably arranged in the second movable groove.

[0018] (III) Beneficial effects

[0019] By setting a fixed curved surface pressing and forming machine, a movable heating furnace, and a cooling furnace, the present invention can effectively solve the problem of low dimensional accuracy of the curved surface arc in the existing curved surface glass tempering method. The movable heating furnace and the cooling furnace can respectively heat and soften and rapidly cool the glass placed on the curved surface pressing and forming machine, thereby ensuring the requirements for the tempering process of the glass. The upper die core and the adjustable die core in the curved surface pressing and forming machine can only move up and down, so that the hot blank of the glass formed by hot pressing is always placed on the adjustable die core and the lower die core. The adjustable die core and the lower die core can always support the hot blank of the glass, effectively avoiding the deformation of the hot blank of the curved surface glass under the action of its own gravity, thereby affecting the dimensional accuracy of the curved surface after the hot blank of the curved surface glass is cooled and formed, ensuring the same stress in different parts of the curved surface glass, greatly improving the uniformity, and avoiding self-damage and self-cracking of the glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following will clearly show the technical solutions and their beneficial effects of the present invention by describing the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0021] Figure 1 is a schematic structural diagram of a curved surface glass tempering furnace of the present invention;

[0022] Figure 2 is a schematic structural diagram of a curved surface glass tempering furnace in a heating state of the present invention;

[0023] Figure 3 is a schematic structural diagram of a curved surface glass tempering furnace in a cooling state of the present invention;

[0024] Figure 4 is a schematic structural diagram of a heating component and a cooling component of the present invention;

[0025] Figure 5 is a front view of a curved surface pressing and forming machine of the present invention;

[0026] Figure 6 is a schematic structural diagram of a tempering processing table of the present invention;

[0027] Figure 7 is a schematic structural diagram of a cooling furnace of the present invention.

[0028] In the figure: 10. Heating component; 11. Heating furnace; 111. Heating machine; 112. Heating tube; 113. First threaded sleeve; 12. First closing plate; 121. First rack plate; 13. First threaded rod; 14. First belt; 15. First rotating shaft; 16. First gear; 17. First motor; 20. Cooling component; 21. Cooling furnace; 211. Cooling machine; 212. Condensing tube; 213. Second threaded sleeve; 22. Second closing plate; 221. Second rack plate; 23. Second threaded rod; 24. Second belt; 25. Second rotating shaft; 26. Second gear; 27. Second motor; 30. Curved surface top pressing and forming machine; 31. Upper die core; 32. Adjustable die core; 33. Lower die core; 34. Third threaded rod; 35. Third belt; 36. Third motor; 40. Tempering processing table; 41. Table board; 411. First moving groove; 412. Second moving groove; 413. First movable groove; 414. Second movable groove; 42. Base. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope protected by the present application.

[0030] As Figure 1 — Figure 7 shown, a curved surface glass tempering furnace described in the present invention includes a heating component 10, a cooling component 20, a curved surface top pressing and forming machine 30, and a tempering processing table 40. The heating component 10, the cooling component 20, and the curved surface top pressing and forming machine 30 are all arranged on the tempering processing table 40. The heating component 10 and the cooling component 20 are respectively movably arranged on the left and right sides of the curved surface top pressing and forming machine 30, and the heating component 10 and the cooling component 20 are symmetrically arranged about the curved surface top pressing and forming machine 30. The heating component 10 is used to heat and soften the glass, and the cooling component 20 is used to rapidly cool the heated glass blank, so that the glass is tempered, while the curved surface top pressing and forming machine 30 is used to press the heated glass blank into a curved surface shape.

[0031] Among them, the heating component 10 includes a heating furnace 11, a first closing plate 12, a first threaded rod 13, a first belt 14, a first rotating shaft 15, a first gear 16, and a first motor 17. The heating furnace 11 is a cavity with an open right end. The first closing plate 12 is movably arranged on the right side of the heating furnace 11, and the first closing plate 12 is adapted to the right end of the heating furnace 11 for closing the heating furnace 11, so that the glass placed on the curved surface top pressing and forming machine 30 is completely inside the heating furnace 11.

[0032] Further, a first threaded sleeve 113 is fixedly arranged at the bottom of the front side plate of the heating furnace 11. The first threaded sleeve 113 is in threaded connection with a first threaded rod 13. The left end of the first threaded rod 13 is fixedly connected to a first motor 17. The first motor 17 is a bidirectional rotating motor. The right end of the first threaded rod 13 is movably connected to the left end of a first rotating shaft 15 through a first belt 14. A first gear 16 is fixedly sleeved on the right end of the first rotating shaft 15. A first rack plate 121 is fixedly arranged at the front end of the first closing plate 12. The first rack plate 121 is in meshing connection with the first gear 16.

[0033] Start the first motor 17. The first motor 17 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the heating furnace 11 to move to the right through the first threaded sleeve 113. At the same time, the first threaded rod 13 also drives the first rotating shaft 15 to rotate through the first belt 14. The first rotating shaft 15 drives the first gear 16 to rotate. The first gear 16 drives the first rack plate 121 to move upward, thereby driving the first closing plate 12 to move upward until the first closing plate 12 completely closes the heating furnace 11, that is Figure 2 the state shown. At this time, the curved surface pressing and forming machine 30 is completely located inside the heating furnace 11. Similarly, reverse-start the first motor 17, which can drive the heating furnace 11 to move to the left and drive the first closing plate 12 to move downward, that is Figure 1 the state shown.

[0034] Among them, the curved surface pressing and forming machine 30 includes an upper die core 31, an adjustable die core 32, a lower die core 33, a third threaded rod 34, a third belt 35 and a third motor 36. The upper die core 31 and the lower die core 33 are respectively located on the upper and lower sides of the adjustable die core 32. Glass can be placed between the upper die core 31 and the adjustable die core 32, or can be placed between the adjustable die core 32 and the lower die core 33. At least one adjustable die core 32 is provided. Setting multiple adjustable die cores 32 can enable multiple glasses to be placed at one time, thereby increasing the number of glasses processed at one time and improving work efficiency.

[0035] Further, two third threaded rods 34 are respectively movably arranged on the left and right sides of the lower die core 33. The lower die core 33 is rotationally connected to the third threaded rod 34. The upper die core 31 and the adjustable die core 32 are both in threaded connection with the third threaded rod 34. The pitch of the thread on the third threaded rod 34 decreases sequentially from top to bottom, so that the moving distances of the upper die core 31 and the adjustable die core 32 decrease sequentially from top to bottom, thereby ensuring that the upper die core 31 and the adjustable die core 32 can simultaneously press multiple glass blanks. The two third threaded rods 34 are movably connected through a third belt 35. The bottom end of one third threaded rod 34 is fixedly connected to the third motor 36. The third motor 36 is a bidirectional rotating motor.

[0036] Start the third motor 36. Driven by the third belt 35, the third motor 36 drives two third threaded rods 34 to rotate, and the third threaded rods 34 drive the upper die core 31 and the adjustable die core 32 to move up and down.

[0037] Among them, a heater 111 and heating tubes 112 are also provided on the heating furnace 11. The heater 111 and the heating tubes 112 are fixedly connected. The heater 111 is located at the top of the heating furnace 11, and the heating tubes 112 are located on the inner wall of the heating furnace 11. The heater 111 softens the glass by heating through the heating tubes 112.

[0038] Among them, the cooling assembly 20 includes a cooling furnace 21, a second closing plate 22, a second threaded rod 23, a second belt 24, a second rotating shaft 25, a second gear 26 and a second motor 27. The cooling furnace 21 is a cavity with an open left end. The second closing plate 22 is movably arranged on the left side of the cooling furnace 21, and the second closing plate 22 is adapted to the left end of the cooling furnace 21 for closing the cooling furnace 21, so that the glass placed on the curved surface pressing and forming machine 30 is completely inside the cooling furnace 21.

[0039] Further, a second threaded sleeve 213 is fixedly arranged at the bottom of the rear side plate of the cooling furnace 21. The second threaded sleeve 213 is threadedly connected with the second threaded rod 23. The right end of the second threaded rod 23 is fixedly connected with the second motor 27. The second motor 27 is a bidirectional rotating motor. The left end of the second threaded rod 23 is movably connected with the right end of the second rotating shaft 25 through the second belt 24.

[0040] Further, the second gear 26 is fixedly sleeved on the left end of the second rotating shaft 25. A second rack plate 221 is fixedly arranged at the rear side end of the second closing plate 22. The second rack plate 221 is meshed with the second gear 26.

[0041] Start the second motor 27. The second motor 27 drives the second threaded rod 23 to rotate. The second threaded rod 23 drives the cooling furnace 21 to move to the left through the second threaded sleeve 213. At the same time, the second threaded rod 23 also drives the second rotating shaft 25 to rotate through the second belt 24. The second rotating shaft 25 drives the second gear 26 to rotate. The second gear 26 drives the second rack plate 221 to move upward, thereby driving the second closing plate 22 to move upward until the second closing plate 22 completely closes the cooling furnace 21, that is Figure 3 the state shown. At this time, the curved surface pressing and forming machine 30 is completely inside the cooling furnace 21. Similarly, starting the second motor 27 in the reverse direction can drive the cooling furnace 21 to move to the right and drive the second closing plate 22 to move downward, that is Figure 1 the state shown.

[0042] Further, a cooler 211 and a condensing pipe 212 are also provided on the cooling furnace 21. The cooler 211 and the condensing pipe 212 are fixedly connected. The cooler 211 is located at the top of the cooling furnace 21, and the condensing pipe 212 is located on the inner wall of the cooling furnace 21. The cooler 211 rapidly cools the glass hot blank through the condensing pipe 212.

[0043] Among them, a table board 41 and a base 42 are provided on the toughening processing table 40. The table board 41 is fixedly arranged on the base 42, the lower die core 33 is fixedly arranged on the table board 41, the bottom end of the third threaded rod 34 penetrates through the table board 41 and then extends into the base 42, and the third motor 36 is fixedly arranged in the base 42.

[0044] Further, a first moving groove 411, a second moving groove 412, a first movable groove 413 and a second movable groove 414 are provided on the table board 41. The first moving groove 411 and the second moving groove 412 are symmetrically arranged on the front and rear sides of the lower die core 33, the second movable groove 414 and the first movable groove 413 are symmetrically arranged on the left and right sides of the lower die core 33, and the first movable groove 413 and the second movable groove 414 extend into the base 42.

[0045] Further, the first threaded rod 13 and the first threaded sleeve 113 are movably arranged in the first moving groove 411. The first moving groove 411 is used to limit the moving distance of the heating furnace 11. The left end of the first threaded rod 13 penetrates through the table board 41 and then extends to the left end of the table board 41. The first motor 17 is fixedly arranged at the left end of the table board 41.

[0046] Further, the second threaded rod 23 and the second threaded sleeve 213 are movably arranged in the second moving groove 412. The second moving groove 412 is used to limit the moving distance of the cooling furnace 21. The right end of the second threaded rod 23 penetrates through the table board 41 and then extends to the right end of the table board 41. The second motor 27 is fixedly arranged at the right end of the table board 41.

[0047] Further, the first closing plate 12 is movably arranged in the first movable groove 413. When the heating furnace 11 moves to the leftmost side, the first closing plate 12 just completely moves into the first movable groove 413. The second closing plate 22 is movably arranged in the second movable groove 414. When the cooling furnace 21 moves to the rightmost side, the second closing plate 22 just completely moves into the second movable groove 414.

[0048] It should be noted that the present application is also provided with control switches for the first motor 17, the second motor 27, the third motor 36, the heating machine 111 and the cooler 211. This is the prior art and will not be elaborated here.

[0049] In use, first place the glass to be processed between the upper die core 31 and the adjustable die core 32, or between the adjustable die core 32 and the lower die core 33. Then start the first motor 17. The first motor 17 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the heating furnace 11 to move to the right. The first threaded rod 13 also drives the first rotating shaft 15 to rotate through the first belt 14. The first rotating shaft 15 drives the first rack plate 121 to move upward through the first gear 16, thereby driving the first closing plate 12 to move upward until the first closing plate 12 completely closes the heating furnace 11. Then start the heating machine 111. The heating machine 111 heats and softens the glass through the heating tube 112. Then start the third motor 36. Driven by the third belt 35, the third motor 36 drives the two third threaded rods 34 to rotate. The third threaded rods 34 drive the upper die core 31 and the adjustable die core 32 to move downward, thereby pressing the hot glass blank. After pressing and forming, reverse-start the first motor 17 and the third motor 36 to make the heating furnace 11, the first closing plate 12, the upper die core 31 and the adjustable die core 32 move in the reverse direction and return to the initial position. Then start the second motor 27. The second motor 27 drives the second threaded rod 23 to rotate. The second threaded rod 23 drives the cooling furnace 21 to move to the left. The second threaded rod 23 also drives the second rotating shaft 25 to rotate through the second belt 24. The second rotating shaft 25 drives the second rack plate 221 to move upward through the second gear 26, thereby driving the second closing plate 22 to move upward until the second closing plate 22 completely closes the cooling furnace 21. Then start the cooling machine 211. The cooling machine 211 rapidly cools the pressed and formed hot glass blank through the condensing tube 212, thereby realizing the toughening process of the curved glass.

[0050] In the present invention, by setting a fixed curved surface pressing and forming machine and movable heating furnace and cooling furnace, the problem of low precision of the curved surface arc size in the existing curved surface glass toughening process can be effectively solved. The movable heating furnace and cooling furnace can respectively heat and soften and rapidly cool the glass placed on the curved surface pressing and forming machine, thereby ensuring the toughening processing requirements of the glass. The upper die core and the adjustable die core in the curved surface pressing and forming machine can only move up and down, so that the hot glass blank formed by hot pressing is always placed on the adjustable die core and the lower die core. The adjustable die core and the lower die core can always support the hot glass blank, which can effectively avoid the deformation of the hot glass blank of the curved surface glass under the action of its own gravity, thereby affecting the curved surface size precision after the hot glass blank of the curved surface glass is cooled and formed, thereby ensuring that the stresses in different parts of the curved surface glass are the same, greatly improving the uniformity, and avoiding self-damage and self-cracking of the glass.

[0051] The above is only the implementation mode of this application, and does not limit the patent scope of this application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of this application by the same token.

Claims

1. A curved glass tempering furnace, characterized in that: The invention comprises a heating component, a cooling component, a curved top pressing molding machine and a tempering processing table, wherein the heating component, the cooling component and the curved top pressing molding machine are all arranged on the tempering processing table, the heating component and the cooling component are respectively movably arranged on the left and right sides of the curved top pressing molding machine, and the heating component and the cooling component are centrally symmetrically arranged about the curved top pressing molding machine, the heating component comprises a heating furnace, a first closing plate, a first threaded rod, a first belt, a first rotating shaft, a first gear and a first motor, the heating furnace is a cavity with an opening at the right end, the first closing plate is movably arranged at the The right side of the heating furnace, and the first closing plate is adapted to the right side end of the heating furnace and is used to close the heating furnace, a first threaded sleeve is fixedly provided at the bottom of the front side plate of the heating furnace, the first threaded sleeve is threadedly connected to the first threaded rod, the left end of the first threaded rod is fixedly connected to the first motor, the right end of the first threaded rod is movably connected to the left end of the first rotating shaft through the first belt, the first gear is fixedly sleeved on the right side end of the first rotating shaft, a first rack plate is fixedly provided at the front side end of the first closing plate, and the first rack plate is meshedly connected to the first gear; The curved surface top pressing forming machine comprises an upper mold core, an adjustable mold core, a lower mold core, a third threaded rod, a third belt and a third motor, the upper mold core and the lower mold core are respectively located at the upper and lower sides of the adjustable mold core, the adjustable mold core is at least provided with one, two third threaded rods are respectively movably arranged on the left and right sides of the lower mold core, the lower mold core is rotatably connected to the third threaded rod, the upper mold core and the adjustable mold core are both threadedly connected to the third threaded rod, the pitch of the thread on the third threaded rod decreases from top to bottom, the two third threaded rods are movably connected by the third belt, the bottom end of one third threaded rod is fixedly connected to the third motor fixed connection; the cooling assembly includes a cooling furnace, a second closing plate, a second threaded rod, a second belt, a second rotating shaft, a second gear and a second motor, the cooling furnace is a cavity with an opening at the left end, the second closing plate is movably arranged on the left side of the cooling furnace, and the second closing plate is adapted to the left end of the cooling furnace for closing the cooling furnace; a second threaded sleeve is fixedly arranged on the bottom of the rear side plate of the cooling furnace, the second threaded sleeve is threadedly connected to the second threaded rod, the right side end of the second threaded rod is fixedly connected to the second motor, and the left side end of the second threaded rod is movably connected to the right side end of the second rotating shaft through the second belt.

2. The curved glass tempering furnace according to claim 1, characterized in that: The heating furnace is also provided with a heating machine and a heating tube, the heating machine and the heating tube are fixedly connected, the heating machine is located at the top of the heating furnace, and the heating tube is located on the inner wall of the heating furnace.

3. The curved glass tempering furnace according to claim 1, characterized in that: The second gear is fixedly sleeved on the left end of the second rotating shaft, and a second rack plate is fixedly provided on the rear end of the second closing plate, and the second rack plate is meshedly connected with the second gear.

4. The curved glass tempering furnace according to claim 1, characterized in that: The cooling furnace is also provided with a cooling machine and a condensing pipe, the cooling machine and the condensing pipe are fixedly connected, the cooling machine is located at the top of the cooling furnace, and the condensing pipe is located on the inner wall of the cooling furnace.

5. The curved glass tempering furnace according to claim 1, characterized in that: The tempering processing table is provided with a table plate and a base, the table plate is fixedly arranged on the base, the lower mold core is fixedly arranged on the table plate, the bottom end of the third threaded rod passes through the table plate and extends into the base, and the third motor is fixedly arranged in the base.

6. The curved glass tempering furnace according to claim 5, characterized in that: A first movable groove, a second movable groove, a first active groove and a second active groove are arranged on the table plate, the first movable groove and the second movable groove are symmetrically arranged at the front and rear sides of the lower mold core, the second active groove and the first active groove are symmetrically arranged at the left and right sides of the lower mold core, and the first active groove and the second active groove extend into the base.

7. The curved glass tempering furnace according to claim 6, characterized in that: The first threaded rod and the first threaded sleeve are movably arranged in the first movable groove, the left end of the first threaded rod penetrates the table plate and extends to the left end of the table plate, the first motor is fixedly arranged at the left end of the table plate, the second threaded rod and the second threaded sleeve are movably arranged in the second movable groove, the right end of the second threaded rod penetrates the table plate and extends to the right end of the table plate, and the second motor is fixedly arranged at the right end of the table plate.

8. The curved glass tempering furnace according to claim 7, characterized in that: The first closing plate is movably disposed in the first movable groove, and the second closing plate is movably disposed in the second movable groove.

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