Glass toughening heating furnace and glass toughening production line

Abstract

The utility model relates to the field of glass toughening equipment discloses a glass toughening heating furnace and glass toughening production line of application of the glass toughening heating furnace, wherein the glass toughening heating furnace includes upper furnace body, lower furnace body and glass conveying roller way, the upper furnace body includes upper furnace shell and at least two upper reinforcing units, all the upper reinforcing units arrange along the length direction of upper furnace shell, the upper reinforcing unit is located at the periphery of upper furnace shell, and the upper reinforcing unit is arranged around the upper furnace shell on the plane perpendicular to the length direction of upper furnace shell, and the upper reinforcing unit is fixedly connected with the outer wall of upper furnace shell. The utility model discloses the upper reinforcing unit of close adhesion with upper furnace shell is arranged at the periphery of the upper furnace shell of toughening furnace, and the upper reinforcing unit is fixedly connected between upper furnace shell, thereby improving the structural strength of upper furnace shell, effectively inhibiting the deformation of upper furnace shell, and improving the service life of upper furnace shell.

Description

Technical Field

[0001] This utility model relates to the field of glass tempering equipment, and in particular to a glass tempering heating furnace and a glass tempering production line using the glass tempering heating furnace. Background Technology

[0002] In the glass processing industry, glass is often heated and subjected to other treatments to obtain glass with different mechanical properties. For example, tempered glass is made by heating ordinary glass in a furnace, followed by rapid cooling to create a thermal stress difference between the glass surface and its interior, thereby increasing the glass's hardness and stress. This type of glass is called tempered glass.

[0003] Existing technologies for heating glass include furnaces such as the Chinese patent CN103951174B, "A Heating Furnace for Glass Plates," which discloses a furnace for heating glass plates. This furnace includes a frame and an upper furnace body and a lower furnace body mounted on the frame, with a glass plate conveyor roller horizontally positioned between the upper and lower furnace bodies. The inner wall of this furnace uses a guide wall to improve airflow circulation and eliminate the problem of gas turbulence inside the furnace cavity.

[0004] However, the outer wall of the aforementioned heating furnace is also matched with the shape of the guide wall, resulting in a narrower top surface and a wider bottom surface of the upper furnace shell. This structural form makes the overall structural strength of the upper furnace shell worse than that of an upper furnace shell with a consistent top and bottom surface width. During long-term use, the lower structural strength leads to furnace shell deformation, so improvements are needed. Utility Model Content

[0005] To address the problems existing in the prior art, such as insufficient structural strength of the upper furnace shell leading to easy deformation during long-term use, this utility model aims to provide a glass tempering heating furnace. By setting an upper reinforcing unit that is tightly fitted to the upper furnace shell on the periphery of the upper furnace shell and fixing the upper reinforcing unit to the upper furnace shell, the structural strength of the upper furnace shell is improved, deformation of the upper furnace shell is effectively suppressed, and the service life of the upper furnace shell is increased.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A glass tempering heating furnace includes an upper furnace body, a lower furnace body, and a glass conveying roller conveyor. The upper furnace body includes an upper furnace shell and at least two upper reinforcing units. All the upper reinforcing units are arranged along the length direction of the upper furnace shell. The upper reinforcing units are located on the periphery of the upper furnace shell and are arranged around the upper furnace shell in a plane perpendicular to the length direction of the upper furnace shell. The upper reinforcing units are fixedly connected to the outer wall of the upper furnace shell.

[0008] The present invention is further configured such that: the lower furnace body includes a lower furnace shell and at least two lower reinforcing units, all of the lower reinforcing units are arranged along the length direction of the lower furnace shell, the lower reinforcing units are located on the periphery of the lower furnace shell, and the lower reinforcing units are arranged around the lower furnace shell on a plane perpendicular to the length direction of the lower furnace shell, and the lower reinforcing units are fixedly connected to the outer wall of the lower furnace shell.

[0009] The present invention is further configured such that the upper reinforcing unit and the lower reinforcing unit are arranged in a corresponding position along the length of the upper furnace shell, with the upper reinforcing unit located directly above the lower reinforcing unit.

[0010] The present invention is further configured such that the shape and size of the upper reinforcing unit are adapted to the upper furnace shell, and the upper reinforcing unit is tightly fitted to the upper furnace shell.

[0011] The present invention is further configured such that: the upper reinforcing unit includes an upper horizontal member and two upper vertical members, the two upper vertical members are respectively located at both ends of the upper horizontal member, the upper furnace shell has an upper top surface and an upper side surface, the upper horizontal member is fixedly connected to the upper top surface, and the upper vertical members are fixedly connected to the upper side surface.

[0012] The present invention is further configured such that: the upper furnace shell also has an upper inclined surface, and the upper reinforcing unit further includes two upper inclined members, the two ends of each upper inclined member being fixedly connected to the upper horizontal member and the upper vertical member respectively.

[0013] The present invention is further configured such that the upper inclined member is fixedly connected to the upper inclined surface.

[0014] The present invention is further configured to include a lifting mechanism for driving the upper furnace body to rise and fall. The lifting mechanism includes a driving component, a lifting rod and a screw sleeve. The upper reinforcing unit includes a vertically arranged and hollow upper vertical member. The lifting rod and the screw sleeve are disposed inside the upper vertical member.

[0015] The present invention is further configured such that: the lifting mechanism includes a fixing component; the lifting rod is threadedly engaged with the screw sleeve; the driving component drives the lifting rod to rotate around its own axis; the driving component is installed and fixed on the upper furnace body; and the screw sleeve is fixed on the fixing component.

[0016] This utility model also provides a glass tempering production line, including an upper plate platform, a heating furnace, a cooling device and an lower plate platform arranged sequentially along the glass conveying direction, wherein the heating furnace is a glass tempering heating furnace as described in any of the above.

[0017] In summary, the beneficial effects achieved by this utility model are as follows:

[0018] (1) The upper reinforcing unit is arranged around the upper furnace shell to form a frame structure with an opening on one side. The frame structure is fixedly connected to the upper furnace shell, thereby strengthening the structural strength of the upper furnace shell.

[0019] (2) The upper reinforcing unit is also provided with an upper inclined piece to further enhance its own structural strength, and the upper inclined piece is fixedly connected to the upper furnace shell to maximize the structural strength of the upper furnace shell;

[0020] (3) The lifting rod and screw sleeve in the lifting mechanism are set inside the upper vertical part. On the one hand, the lifting rod and screw sleeve are hidden, which simplifies the structural layout and improves the aesthetics of the heating furnace. On the other hand, it can effectively isolate debris and dust and ensure the stable operation of the lifting mechanism.

[0021] (4) A lower reinforcing unit with an opening on one side is also arranged around the periphery of the lower furnace shell and fixedly connected to the lower furnace shell to effectively improve the structural strength of the lower furnace shell;

[0022] (5) The upper reinforcing unit of the heating furnace is located directly above the lower reinforcing unit. The two are arranged in the same position along the length of the upper furnace shell, thereby transferring part or even all of the force between the upper and lower furnace shells to the upper and lower reinforcing units, effectively reducing or even eliminating the force on the upper and lower furnace shells, thus improving the overall service life of the heating furnace. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the glass tempering heating furnace in Embodiment 1 of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the upper furnace body of the glass tempering heating furnace in Embodiment 1 of this utility model;

[0026] Figure 3 This is a schematic diagram of the lifting mechanism in this utility model;

[0027] Figure 4 This is a schematic diagram of the glass tempering heating furnace in Embodiment 2 of this utility model;

[0028] Figure 5 This is a schematic diagram of the glass tempering heating furnace in Embodiment 3 of this utility model;

[0029] Figure 6This is a schematic diagram of the glass tempering heating furnace in Embodiment 4 of this utility model;

[0030] Figure 7 This is a schematic diagram of the composition and structure of the glass tempering production line in this utility model.

[0031] In the diagram: 101. Heating furnace; 1. Upper furnace body; 11. Upper furnace shell; 111. Top surface; 112. Upper inclined surface; 113. Upper side surface; 12. Upper reinforcing unit; 121. Upper horizontal component; 122. Upper inclined component; 123. Upper vertical component; 2. Lower furnace body; 21. Lower furnace shell; 211. Bottom surface; 212. Lower inclined surface; 213. Lower side surface; 22. Lower reinforcing unit; 221. Lower horizontal component; 222. Lower inclined component; 223. Lower vertical component; 3. Glass conveying roller conveyor; 4. Lifting mechanism; 41. Drive component; 42. Lifting rod; 43. Screw sleeve; 44. Fixing component; 102. Upper plate table; 103. Cooling equipment; 104. Lower plate table. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0034] Example 1

[0035] As attached Figure 1-2 As shown, a glass tempering heating furnace includes an upper furnace body 1, a lower furnace body 2, and a glass conveying roller conveyor 3.

[0036] The glass conveying roller 3 is located between the upper furnace body 1 and the lower furnace body 2, and is used to carry and transport glass. The heating furnace as a whole has a rectangular box structure, and the glass conveying roller 3 transports glass in the same direction as the length of the heating furnace.

[0037] The upper furnace body 1 includes an upper furnace shell 11 and at least two upper reinforcing units 12. The length direction of the upper furnace shell 11 is consistent with the length direction of the heating furnace, and both are attached. Figure 2 The g direction in the middle. Correspondingly, the width direction of the upper furnace shell 11 or the heating furnace is attached. Figure 1 and attached Figure 2 The specific number of upper reinforcing units 12 is determined according to the actual length of the upper furnace shell 11. The longer the upper furnace shell 11 is, the more upper reinforcing units 12 are required.

[0038] The upper furnace shell 11 is generally inverted U-shaped, and has an upper top surface 111, an upper inclined surface 112, and an upper side surface 113. The two upper inclined surfaces 112 and the upper side surface 113 are symmetrically distributed about the centerline of the upper top surface 111 in the f direction. The upper top surface 111 is horizontal, the upper inclined surface 112 is inclined, and the upper side surface 113 is vertical.

[0039] All upper reinforcing units 12 are located around the upper furnace shell 11. The upper reinforcing units 12 are arranged around the upper furnace shell 11 in a plane perpendicular to its length direction, and are fixedly connected to the outer wall of the upper furnace shell 11. The fixed connection method can be welding, riveting, bolting, or using fixing clamps, etc. In this embodiment, welding is used for all of the above fixed connection methods. It should be noted that the upper reinforcing units 12 surrounding the upper furnace shell 11 does not mean that the upper reinforcing units 12 completely enclose the upper furnace shell 11, but rather that the upper reinforcing units 12 form a rectangular frame structure with an opening on one side. The purpose of the opening in the upper reinforcing units 12 is to avoid the glass conveying roller 3 below the lower furnace body 2. Preferably, the shape and size of the upper reinforcing units 12 are adapted to the upper furnace shell 11, so that the upper reinforcing units 12 can fit tightly against the upper furnace shell 11, thereby further strengthening the structural strength of the upper furnace shell 11 without compromising the overall aesthetics of the heating furnace.

[0040] The upper reinforcing unit 12 is fixedly connected to the upper furnace shell 11 on the side facing the upper furnace shell 11, thereby achieving the effects of strengthening the structural strength of the upper furnace shell 11, preventing deformation of the upper furnace shell 11, and extending the service life of the upper furnace shell 11.

[0041] Specifically, the upper reinforcing unit 12 includes an upper horizontal member 121, two upper inclined members 122, and two upper vertical members 123.

[0042] The upper horizontal member 121 is a horizontally arranged elongated rod-like structure, with its length direction aligned with the f direction. The bottom of the upper horizontal member 121 is in close contact with and fixedly connected to the upper top surface 111. In other embodiments, the upper horizontal member 121 can be a non-rod-like structure, requiring only that the bottom of the upper horizontal member 121 is fixedly connected to the upper top surface 111.

[0043] The upper vertical member 123 is a vertically arranged long strip-shaped rod structure. The upper vertical member 123 is located at both ends in the width direction of the upper furnace shell 11. The side of the upper vertical member 123 is closely attached to the upper side 113 and is fixedly connected to the upper side 113.

[0044] The upper horizontal member 121 and the two upper vertical members 123 form a rectangular frame structure with an opening on one side. The ends of the two upper vertical members 123 are fixedly connected to the two ends of the upper horizontal member 121, respectively.

[0045] The upper inclined member 122 is an inclined long strip-shaped structure, with its two ends fixedly connected to the upper horizontal member 121 and the upper vertical member 123 respectively. The bottom of the upper inclined member 122 is in close contact with the upper inclined surface 112 and fixedly connected to the upper inclined surface 112.

[0046] In some other embodiments, the upper inclined member 122 may be inclinedly disposed between the upper horizontal member 121 and the upper vertical member 123, with both ends of the upper inclined member 122 fixedly connected to the upper horizontal member 121 and the upper vertical member 123 respectively, but the upper inclined member 122 is not fixedly connected to the upper inclined surface 112. In this case, the upper inclined member 122 only serves to improve the structural strength of the upper reinforcing unit 12 itself, and the upper inclined member 122 does not directly strengthen the structural strength of the upper furnace shell 11. Alternatively, the upper vertical member 123 may also be disposed only on both sides of the upper horizontal member 121 but not fixedly connected to the upper side surface 113. In this case, the upper vertical member 123 only serves to support the upper horizontal member 121, and the upper vertical member 123 does not directly strengthen the structural strength of the upper furnace shell 11. In this embodiment, the upper horizontal member 121, the upper inclined member 122, and the upper vertical member 123 in the upper reinforcing unit 12 are all in contact with the upper furnace shell 11, thereby maximizing the contact area between the upper reinforcing unit 12 and the upper furnace shell 11. The upper horizontal member 121, the upper inclined member 122, and the upper vertical member 123 all directly improve the structural strength of the upper furnace shell 11.

[0047] In some other embodiments, the upper inclined member 122 may be omitted, and the upper reinforcing unit 12 may be formed solely by the upper horizontal member 121 and the upper vertical member 123.

[0048] The lower furnace body 2 is located directly below the upper furnace body 1. Similarly, the lower furnace body 2 also includes a lower furnace shell 21 and at least two lower reinforcing units 22.

[0049] The length direction of the lower furnace shell 21 is consistent with the length direction of the upper furnace shell 11, and the width direction of the lower furnace shell 21 is also consistent with that of the upper furnace shell 11. Figure 1 and attached Figure 2 The specific number of lower reinforcing units 22 is determined based on the actual length of the lower furnace shell 21. The longer the lower furnace shell 21 is, the more lower reinforcing units 22 are required.

[0050] Preferably, the number of upper reinforcing units 12 and lower reinforcing units 22 are the same, and their arrangement positions in the g direction correspond, with the upper reinforcing unit 12 located directly above the lower reinforcing unit 22.

[0051] Similar to the upper furnace shell 11, the lower furnace shell 21 is generally U-shaped, but it only includes a lower bottom surface 211 and a lower side surface 213. The two lower side surfaces 213 are symmetrically distributed about the centerline of the lower bottom surface 211 in the f direction. The lower bottom surface 211 is horizontally arranged, and the lower side surfaces 213 are vertically arranged.

[0052] The lower reinforcing units 22 are all located on the periphery of the lower furnace shell 21 and are arranged around the lower furnace shell 21. Moreover, the shape and size of the lower reinforcing units 22 are adapted to the lower furnace shell 21. Since the lower furnace shell 21 does not have an inclined surface, the lower reinforcing units 22 only include one lower horizontal member 221 and two lower vertical members 223.

[0053] The lower horizontal member 221 is a horizontally arranged long strip-shaped structure with its length direction consistent with the f direction. The top of the lower horizontal member 221 is close to the lower bottom surface 211 and is fixedly connected to the lower bottom surface 211.

[0054] The lower vertical member 223 is a vertically arranged long strip-shaped rod structure. The lower vertical member 223 is located at both ends in the width direction of the lower furnace shell 21. The side of the lower vertical member 223 is closely attached to the lower side surface 213 and is fixedly connected to the lower side surface 213.

[0055] The lower horizontal member 221 and the two lower vertical members 223 form a rectangular frame structure with an opening on one side, which surrounds the lower furnace shell 21 and can fit tightly against the lower furnace shell 21. The lower reinforcing unit 22 is fixedly connected to the outer wall of the lower furnace shell 21, thereby improving the structural strength of the lower furnace shell 21, preventing the lower furnace shell 21 from deforming, and extending the service life of the lower furnace shell 21.

[0056] Since the upper reinforcing unit 12 and the lower reinforcing unit 22 are arranged in the g direction, part or even all of the force between the upper furnace shell 11 and the lower furnace shell 21 is transferred to the upper reinforcing unit 12 and the lower reinforcing unit 22, effectively reducing or even eliminating the force on the upper furnace shell 11 and the lower furnace shell 21, thereby improving the overall service life of the heating furnace 101.

[0057] As attached Figure 3As shown, in this embodiment, the glass tempering furnace also includes a lifting mechanism 4 for driving the upper furnace body 1 to rise and fall. The lifting mechanism 4 is existing technology and generally includes a driving component 41, a lifting rod 42, a screw sleeve 43, and a fixing component 44. The vertically arranged lifting rod 42 is threadedly engaged with the screw sleeve 43; the driving component 41 is generally composed of a motor and a reducer, and the driving component 41 can drive the lifting rod 42 to rotate in both directions around its own axis; the driving component 41 is installed and fixed on the upper furnace body 1, the screw sleeve 43 is fixed on the fixing component 44, and the fixing component 44 can be fixed to the lower furnace body 2 or the ground according to the site environment. Part or all of the upper vertical member 123 in the upper reinforcing unit 12 is hollow inside, and the lifting rod 42 and the screw sleeve 43 are located inside the hollow upper vertical member 123. This arrangement hides the lifting rod 42, simplifies the structural layout, and improves the aesthetics of the furnace; on the other hand, it can effectively isolate debris and dust, ensuring the stable operation of the lifting mechanism. In other embodiments, the drive member 41 is not directly disposed on the top of the lifting rod 42, but is disposed at other positions on the upper furnace shell 11. The drive member 41 drives the lifting rod 42 to rotate around its own axis in both directions through the transmission member.

[0058] Example 2

[0059] As attached Figure 4 As shown, this utility model discloses a glass tempering heating furnace. Unlike the first embodiment, the lower furnace shell 21 also includes a lower inclined surface 212. Correspondingly, the lower reinforcing unit 22 also includes a lower inclined member 222.

[0060] Unlike the rod-shaped upper inclined member 122, the lower inclined member 222 is a right-angled triangular plate structure. The plane of the plate-shaped lower inclined member 222 is perpendicular to the length direction of the lower furnace shell 21, and the inclined edge of the lower inclined member 222 is completely attached to and fixedly connected to the lower inclined surface 212.

[0061] Example 3

[0062] As attached Figure 5 As shown, this utility model discloses a glass tempering heating furnace. Unlike Embodiment 1, the upper inclined surface 112 of the upper furnace shell 11 is curved, and correspondingly, the upper inclined member 122 is a plate-like structure. The plane of the plate-like upper inclined member 122 is perpendicular to the length direction of the upper furnace shell 11. The shape and size of the arc-shaped edge of the upper inclined member 122 are adapted to the upper inclined surface 112, so that the upper inclined member 122 can still be completely fitted and fixedly connected to the upper inclined surface 112.

[0063] Example 4

[0064] As attached Figure 6As shown, this utility model discloses a glass tempering heating furnace. Unlike the first embodiment, the length of the upper horizontal member 121 in the upper reinforcing unit 12 is adapted to the width of the upper top surface 111, while the lengths of the two upper vertical members 123 are adapted to the height of the upper side surface 113, and the lengths of the two upper inclined members 122 are adapted to the upper inclined surface 112. That is, the shape and size of the upper reinforcing unit 12 are adapted to the upper furnace shell 11. At this time, the upper horizontal member 121, the upper vertical member 123 and the upper inclined member 122 are closely attached to the upper furnace shell 11 and fixedly connected to the upper furnace shell 11.

[0065] Example 5

[0066] As attached Figure 7 As shown, this utility model discloses a glass tempering production line, which includes an upper plate stage 102, a cooling device 103 and an lower plate stage 104, and also includes a glass tempering heating furnace 101 in any one of the embodiments 1 to 5.

[0067] The loading stage 102, cooling equipment 103, and unloading stage 104 are all equipment on existing glass tempering production lines. The loading stage 102, heating furnace 101, cooling equipment 103, and unloading stage 104 are arranged sequentially along the glass conveying direction.

[0068] Specifically, the glass is loaded onto the loading table 102 and conveyed into the heating furnace 101. After being heated to the softening temperature, it is conveyed to the cooling equipment 103 for cooling to complete the tempering of the glass. Finally, it is conveyed off the loading table 104.

[0069] In other embodiments, the glass tempering production line also includes a bending device disposed between the heating furnace 101 and the cooling device 103, for bending the glass heated by the heating furnace 101.

[0070] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A glass tempering heating furnace, comprising an upper furnace body (1), a lower furnace body (2), and a glass conveying roller conveyor (3), characterized in that, The upper furnace body (1) includes an upper furnace shell (11) and at least two upper reinforcing units (12). All the upper reinforcing units (12) are arranged along the length direction of the upper furnace shell (11). The upper reinforcing units (12) are located on the periphery of the upper furnace shell (11). Furthermore, the upper reinforcing units (12) are arranged around the upper furnace shell (11) on a plane perpendicular to the length direction of the upper furnace shell (11). The upper reinforcing units (12) are fixedly connected to the outer wall of the upper furnace shell (11).

2. The glass tempering furnace according to claim 1, characterized in that, The lower furnace body (2) includes a lower furnace shell (21) and at least two lower reinforcing units (22). All the lower reinforcing units (22) are arranged along the length direction of the lower furnace shell (21). The lower reinforcing units (22) are located on the periphery of the lower furnace shell (21). Furthermore, the lower reinforcing units (22) are arranged around the lower furnace shell (21) on a plane perpendicular to the length direction of the lower furnace shell (21). The lower reinforcing units (22) are fixedly connected to the outer wall of the lower furnace shell (21).

3. The glass tempering heating furnace according to claim 2, characterized in that, The upper reinforcing unit (12) and the lower reinforcing unit (22) are arranged in a corresponding position along the length of the upper furnace shell (11), with the upper reinforcing unit (12) located directly above the lower reinforcing unit (22).

4. The glass tempering furnace according to claim 1, characterized in that, The shape and size of the upper reinforcing unit (12) are adapted to the upper furnace shell (11), and the upper reinforcing unit (12) is set in close contact with the upper furnace shell (11).

5. The glass tempering furnace according to claim 1 or 4, characterized in that, The upper reinforcing unit (12) includes an upper horizontal member (121) and two upper vertical members (123). The two upper vertical members (123) are located at both ends of the upper horizontal member (121). The upper furnace shell (11) has an upper top surface (111) and an upper side surface (113). The upper horizontal member (121) is fixedly connected to the upper top surface (111), and the upper vertical members (123) are fixedly connected to the upper side surface (113).

6. The glass tempering furnace according to claim 5, characterized in that, The upper furnace shell (11) also has an upper inclined surface (112), and the upper reinforcing unit (12) also includes two upper inclined parts (122), the two ends of each upper inclined part (122) being fixedly connected to the upper horizontal part (121) and the upper vertical part (123) respectively.

7. The glass tempering furnace according to claim 6, characterized in that, The upper inclined piece (122) is fixedly connected to the upper inclined surface (112).

8. The glass tempering furnace according to claim 1 or 3, characterized in that, It also includes a lifting mechanism (4) for driving the upper furnace body (1) to rise and fall. The lifting mechanism (4) includes a driving component (41), a lifting rod (42) and a screw sleeve (43). The upper reinforcing unit (12) includes a vertically arranged and hollow upper vertical member (123). The lifting rod (42) and the screw sleeve (43) are arranged inside the upper vertical member (123).

9. The glass tempering furnace according to claim 8, characterized in that, The lifting mechanism (4) also includes a fixing member (44), the lifting rod (42) is threadedly engaged with the screw sleeve (43), the driving member (41) drives the lifting rod (42) to rotate around its own axis, the driving member (41) is installed and fixed on the upper furnace body (1), and the screw sleeve (43) is fixed on the fixing member (44).

10. A glass tempering production line, comprising an loading table (102), a heating furnace (101), a cooling device (103), and an unloading table (104) arranged sequentially along the glass conveying direction, characterized in that, The heating furnace (101) is the glass tempering heating furnace (101) as described in any one of claims 1-9.

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